JP4227256B2

JP4227256B2 - Water supply equipment

Info

Publication number: JP4227256B2
Application number: JP22387299A
Authority: JP
Inventors: 哲則坂谷; 茂佐渡島
Original assignee: 株式会社川本製作所
Priority date: 1999-08-06
Filing date: 1999-08-06
Publication date: 2009-02-18
Anticipated expiration: 2019-08-06
Also published as: JP2001050171A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば家庭に給水を行う給水装置に関する。
【０００２】
【従来の技術】
アパート、マンションなどの給水システムは、屋外あるいは屋内に設置した給水装置で、各家庭に給水することが行われている。
【０００３】
こうした給水装置では、据え付け場所の制約を受けないよう、できるだけ占有床面積を小さくした装置が望まれる。
【０００４】
そこで、小占有床面積を重要視した給水装置は、奥行き寸法を狭く、高さ寸法を高くし、正面側を開口させたボックス構造のケースを用いて、このケース内の内面に給水に必要な給水ポンプ機器、例えば複数台のポンプ、吸込側合流管、吐出側合流管、アキュームレーターなどを組み付ける構造が採用ようになった。
【０００５】
【発明が解決しようとする課題】
ところが、この構造だと、確かに給水装置が占有する床面積は小さくできるが、周囲が壁で囲まれた狭いボックス構造のケースの中で、各機器、部品の組み付けを行うことが強いられる。特にケースは給水ポンプ機器を収めるだけの小さい外形のケースが用いられるので、機器,部品とケースの壁との間の隙間は小さく、かなり各機器、部品の組み付け作業は面倒であった。
【０００６】
本発明は上記事情に着目してなされたもので、その目的とするところは、小占有床面積と給水ポンプ機器の組付作業性の容易化との双方を満足する給水装置を提供することにある。
【０００７】
【課題を解決するための手段】
上記目的を達成するために請求項１に記載した給水装置は、背板とこの背板の左右両縁部および上部縁にそれぞれ正面方向へ少量突き出る板部を形成して機械的強度を満足させた背壁と、同背壁の下端部に取付けられたアンカー用プレートとを有してなり、該アンカー用プレートを下にし背板を背にして自立可能な架台に、背板から該背板の縁部に在る板部の張出し長さ以上に正面方向に突き出るように取り付けられた複数の支え部材を組み合せ、これら支え部材に給水ポンプ機器を載せる構造とした。
【０００８】
この給水装置だと、支え部材は、背板の両側の板部よりも正面方向へ突き出ているので、ポンプ、各種配管などの給水ポンプ機器を支え部材に組み付けるときは、板部が無い支え部材の周囲の広い開放空間を作業空間として用いて組み付け作業を進めることができ、給水ポンプ機器を組み付ける作業は容易となる。しかも、給水ポンプ機器は、縦置きの背板に設置されるので、従来のボックス構造と同様、必要な占有床面積は小さくてすむ。そのうえ、架台は、左右側および上部が前方に若干、張り出た背壁を用い、これをアンカー用プレートで自立させる構造なので、構造は簡単であり、重量も軽く、製造コストも安価ですむ。
【０００９】
請求項２に記載の給水装置は、さらに上記目的に加え、少ない支持個所で、縦型ポンプを吸込側配管および吐出側配管を合理的に背板に支持させるよう、並行に配置された複数台の電動駆動式の縦型ポンプ、これら各ポンプの吸込口に接続された左右方向に延びる吸込側合流管、各ポンプの吐出口に接続された左右方向に延びる吐出側合流管を有したポンプユニットから給水ポンプ機器を構成し、吸込側合流管および吐出側合流管に支持ベースを形成し、これら支持ベースを支え部材に載せて、ポンプユニットを架台に組み付ける構造を採用した。
【００１０】
これにより、重量のあるポンプを含むポンプユニット全体は、奥行き方向に配置される吸込側合流管と吐出側合流管との間隔を支持スパンとして活用して、安定して受け止められるので、少ない支持個所でポンプユニットの組み付けが行われる。
【００１１】
請求項３に記載の給水装置は、上記目的に加え、縦型ポンプが発する振動で架台が振動するのを防ぐために、支持ベースと支え部材との間に弾性部材を介装し、かつ支え部材の近傍の背壁内面に制振部材を設ける構造を採用した。
【００１２】
これにより、吸込側合流管、吐出側合流管から背板へ伝わろうとする縦型ポンプからの振動は、支持ベースと支え部材との間の弾性部材で吸収される。そして、それでも支え部材から背板へ伝わる振動が、同支え部材の近傍に在る制振部材で抑制されるので、効果的な振動防止が行える。
【００１３】
請求項４に記載の給水装置は、現地で据え付けた給水装置が無用に転倒するようなことがないよう、背板に転倒防止用の金具を取り付けた。
【００１４】
これにより、給水装置の設置時、背板に沿う建物の壁面などに、転倒防止用金具を締結することにより、地震で地面が揺れることがあっても、給水装置の転倒は防止される。
【００１５】
請求項５に記載の給水装置は、直結給水式の給水装置を構成する逆流防止装置から架台へ伝わる振動を防ぐために、吸込側に逆流防止装置が組み付く直結給水式では、逆流防止装置を含む配管を、背板から突き出る支え部材に弾性部材を介して載せた。
【００１６】
これにより、逆流防止装置から架台へ伝わろうとする振動は、弾性部材で吸収され、架台が振動するのが防止される。
【００１７】
請求項６に記載の給水装置は、雨、風の影響に耐える構造で、低騒音の屋外仕様の給水装置が実現されるよう、内のり寸法を架台の外形より大きくした箱状のポンプカバーを正面方向から架台に被せ、同ポンプカバーの上部を、給水装置全体を吊り下げるためのアイボルトで背板の上部に在る板部に締結した。
【００１８】
これにより、架台に取り付いた給水ポンプ機器は、周囲がポンプカバーで覆われて遮蔽されるから、給水ポンプ機器が雨、風にさらされるのを防げる。と同時に給水ポンプ機器の騒音が外部へ出るのが遮られ、屋外の設置に適した給水装置となる。しかも、ポンプカバーは、装置吊り下げ用のアイボルトで架台に固定してあるので、別途、ポンプカバーを取り付けるためのねじ類は不要である。そのうえ、ポンプカバーは、架台の正面方向から外したり取り付けたりする構造なので、たとえ給水装置の幅方向両側に障害物があっても、容易にポンプカバーの脱着作業が行える。
【００１９】
請求項７に記載の給水装置は、配管施工した後でも、給水ポンプ機器の取り外し、取り付け作業を伴うメンテナンスが容易に行えるよう、背板の下部に、左右両側の板部から正面方向に突き出てポンプカバー下部の内面と重なりながら曲がるコ字状のスカート板を形成し、このスカート板に給水ポンプ機器との取り合いを行うための貫通孔を形成した。
【００２０】
これにより、給水装置の据え付けを終えて、スカート部の貫通孔に配管を施した後からでも、給水ポンプ機器のメンテナンスを行うときは、給水ポンプ機器と取り合う配管はそのまま変えずに、ポンプカバーを取り去るだけで、容易に架台に組み付けた機器の取り外しや取り付けが行える。
【００２１】
請求項８に記載の給水装置は、熱の滞留なくポンプカバー内の各部がモーターの冷却ファンで効果的に冷却されるよう、上方から吸い込み下方へ吹き出す冷却ファンが内蔵された全閉モーターを上部に配置した電動駆動式の縦型ポンプを給水ポンプ機器とし、かつ冷却ファンの吸込口を上部に配置し、縦型ポンプにつながる配管を下側に配置して支え部材で架台上部に縦型ポンプを設置し、さらに縦型ポンプと向き合うポンプカバーの正面壁を、上方に向うにしたがって縦型ポンプとの間が狭まるように傾斜させた。
【００２２】
これにより、全閉モーターを冷却した冷却ファンからの排気流（熱風）は、ポンプカバーの傾斜部がもたらす抑えにより、ファンの吸込口へショートサーキットする流れが形成されずに、下側の配管に導かれて冷却されてから、ポンプカバー内の各部に導かれて熱交換した後、再びポンプカバー内の各部に導かれ熱交換（温度上昇）しながら上昇して、再び全閉モーターの冷却ファンで吸込ませるようになり、ポンプカバー内の上部に熱が滞留することなく、ポンプカバー内の各部が十分に冷却されるようになる。
【００２３】
請求項９に記載の給水装置は、全閉モーターからの騒音を効果的に低減するために、傾斜した正面壁の内面に吸音材を設ける構造を採用して、全閉モーターに対して接近する傾斜面を活用して、全閉モーターから発する騒音を効果的に吸収するようにした。
【００２４】
請求項１０に記載の給水装置は、直結給水式を構成する逆流防止装置の漏水状態が外部から確認できるよう、吸込側に逆流防止装置が組み付いた直結給水式を採用した構造は、ポンプカバーに逆流防止装置の漏水点検用の窓を形成して、ポンプカバーを開けずに、窓を通して、逆流防止装置の状態がわかるようにした。
【００２５】
請求項１１に記載の給水装置は、ポンプカバー内の最も凍結しやすい個所を効果的に保温するために、支え部材で背板の下部に組み付く逆流防止装置の一次側にある圧力検出器の近傍に、凍結防止用のヒーターを組み付け、同逆流防止装置を囲むポンプカバーの内面部分に、断熱性を有した吸音材を取り付けた。
【００２６】
これにより、内部雰囲気が最も冷たくなる給水装置の下部に配置される逆流防止装置をヒーターで保温しながら、同ヒーターにより、接水部が細く凍結しやすくなっている逆流防止装置の一次側の圧力検出器が重点に保温されるようになり、防音しつつ最も凍結しやすい給水ポンプ機器の個所が効果的にヒーターで保温されるようになる。
【００２７】
【発明の実施の形態】
以下、本発明を図１ないし図７に示す一実施形態にもとづいて説明する。
【００２８】
図１は、本発明を適用した給水装置の正面図、図２は同給水装置の正断面図、図３（ａ），（ｂ）ないし図５は図１中のそれぞれ矢視Ａ〜Ｄから見た側断面図、図６は給水ポンプ合流配管系を示す正面図、図７は給水装置の各部の構造を示す図を示していて、図中１は自立可能に構成された架台である。
【００２９】
この架台１は、図７に示されるように四角形の背壁２、コ字状に形成されたスカート板７、左右一対のアンカー用プレート１５を組合わせて形成してある。
【００３０】
詳しくは、背壁２は、上下方向に垂直に延びる角形の背板３と、この背板３の上部縁全体に形成された内向きの天板４（板部に相当）と、この天板４と連続する背板３の左右縁全体に形成された内向きの側板５（板部に相当）とを有して形成してある。これら三方縁にある天板４および側板５は、いずれも正面方向へ少量、例えば４０ｍｍ程度、突き出ていて、これら内向きに突き出る天板４および側板５がもたらす剛性により、プレートで形成される背壁３で、べこつきといった支障の無い、ポンプ搭載に対して十分に満足する機械的強度を確保している。また左右両方の側板５の下部分からは、コ字形に折り曲げた帯形のプレートが正面方向に突き出ていて、背壁３の下部にコ字状のスカート板７を形成している。このスカート板７のうち一方の壁、例えば左壁には、奥行き側から順に、横方向から外部と配管取り合いをなすための吸込配管用の貫通孔９、ドレン孔１０、ケーブル孔１１が形成されている。スカート板７の右壁には、正面（手前）側から順に、横方向から外部と配管取り合いをなすための吐出配管用の貫通孔１２、ドレン孔１３が形成されている。またスカート板７の各左右側の下端から側板５の各下端に渡り、それぞれ帯板が取着されていて、架台１の下部に左右一対のアンカー用プレート１５を形成している。これにより、架台アンカー用プレート１５を下にし背板３を背にして自立する、奥行き寸法は狭く、高さ寸法の高い架台１を構成してある。なお、各アンカー用プレート１５の板面にはアンカーボルト挿入孔１５ａ（図７のみに図示）が形成してある。
【００３１】
この架台１を形成する背板３の内面に、給水ポンプ機器２０、同給水ポンプ機器２０を制御する制御盤２１が組み付けてある。すなわち、背板３の左側上段には、内部にインバータなど各種制御機器を内蔵した角箱形の制御盤２１が，ブラケット２１ａを介して組み付けられている。この制御盤２１の下側には、給水ポンプ機器２０であるところのアキュームレーター２２が組み付けられている。また背板３の右側には、制御盤２１およびアキュームレーター２２と隣接して、給水ポンプ機器２０であるところの縦型のポンプユニット２３が組み付けられている。
【００３２】
詳しくは、ポンプユニット２３は、上部にモーター、例えばローターに永久磁石を用いたブラシレスＤＣモーター２４（以下、単にＤＣモーター２４という）を有し、下部に同ＤＣモーター２４に直結されたポンプ部、例えば多段タービンポンプ部２５（以下、単にポンプ部という）を有して構成される縦型の多段タービンポンプ２６を、複数台、例えば２台左右方向に並行に配置し、これに吸込側合流管２７、吐出側合流管２８を組合わせて構成してある。詳しくは、ＤＣモーター２４には、全閉モーターが用いられる。同全閉モーターの上部には、冷却ファンとして、上方に在る吸込口２９ａから吸い込み、下方へ向く吹出口２９ｂからモーター本体の外周面に沿って吹き出すタイプの冷却ファン２９（図２のみに図示）が内蔵してある。多段タービンポンプ２６は、下部に在る下向きに開口するポンプ吸込口３０をもつ吸込ケーシング３１と、上部に在る正面方向に開口するポンプ吐出口３２をもつ吐出ケーシング３３（いずれも図３、図４に図示）との間に、インペラ３４を収めた複数の中間ケーシング３５を締結し、各インペラ３４とＤＣモータ２４から延びるモーター軸２４ａとを連結した構造が用いてある。これら多段タービンポンプ２６の各ポンプ吸込口３０には、メンテナンス用の開閉弁、例えばボール弁３６、左右方向に延びる吸込側合流管２７が順に着脱可能に結合、例えばフランジ接続で結合してある。吸込側合流管２７は、左側端がプラグ３７で閉止され、右側端が逆Ｌ字形を描くように曲がって下方向へ延びている。なお、吸込側合流管２７の横方向に延びる管部分２７ａには両側に凍結防止用のヒーター３８が組み付けてある。多段タービンポンプ２６の各ポンプ吐出口３２には、同吐出口３２から下方（垂直方向）へ延びるＬ形の連結管４０が連結してある（図６に図示）。この連結管４０の上端に一体に形成されているエルボ部４０ａ（ほぼ９０°曲がる部分）に、スイング式のチェッキ弁４０ｂを内蔵させてある。この連結管４０の下端は、ポンプ吸込口３０の位置より、下側となる地点まで延びている。このポンプ吸込口３０から下方にずれた連結管４０の端部に、吸込側と同じく、メンテナンス用の開閉弁、例えばボール弁４１と逆Ｌ字形を描くように曲がる吐出側合流管２８がフランジ接続で連結してある。この吐出側合流管２８の横方向に延びる管部分２８ａの左端には、吐出圧力を検出する圧力検出器１７が組み付けてある。また吐出側合流管２８の下方へ延びる管部分２８ｂは、吸込側合流管２７の下方へ延びる管部分２７ｂと向き合うように（ほぼ平行）に配置される。そして、これら管部分２７ｂ，２８ｂの途中が、高配水時（吸込側の圧力が目標圧力より高くとき）に吐出側へバイパスさせるバイパス部４３を介して連結してある（図４に図示）。バイパス部４３は、管部分２７ｂと管部分２８ｂとの両者間を連通するバイパス管４４と、このバイパス管４４内に収めた、吐出側合流管２８側へ向う方向のみ開く機能をもつバイパス用チェック弁４５とを有して構成してある。そして、このバイパス用チェック弁４５からポンプ吸込側へ向う吸込側合流管２７の垂直な管部分２７ｂには、少水量停止用の流量検出器（目標水量より水量が少なくなるにしたがいポンプ停止させるためのもの）、例えばパドル式の流量検出器４６が組み込んである。なお、吐出側合流管２８の横方向に延びる管部分２８ａにも凍結防止用のヒーター４７が組み付けてある。
【００３３】
このポンプユニット２３のうち、吸込側合流管２７の管部分２７ａ（水平方向に延びる部分）の両端側には、図５にも示されるように管部分２７を挟んで側方に互い違いに張り出す矩形状の２つ支持ベース４８が形成してある。また管部分２７ａから下側にずれて配置されている吐出側合流管２８の管部分２８ａの端部（圧力検出器１７側）には、管部分２７ａ側へ張り出す矩形状の支持ベース４９（１個）が形成してある。
【００３４】
これに対して背板３の右側中段には、図７にも示されるようにポンプユニット据付け用の支え部材５０が取り付けてある。支え部材５０は、例えばコ字形に折り曲げた板金で形成されるサポート部材５１の一方の端部を背板３の内面に固定して、板金の両端壁５２を上下二段に配置し、両端壁５２の他方の端部を背板３の内面から突き出させた構造が用いられている。詳しくは、上下二段となる端壁５２は、上側が三角形状をなし、下側が帯形状をなしていて、いずれも架台１の天板４，側壁５の張出し長さ以上の寸法で正面方向に突き出ている。このうち上段の端壁５２の先端側と基部側とには、各支持ベース４８の位置と対応して、例えばゴム部材とばね部材とを組合わせてなる偏平矩形状の弾性部材５３が取着されている。また下段の端壁５２の先端側には、支持ベース４９の位置と対応して、同様の偏平矩形状の弾性部材５４が取着されている。
【００３５】
ポンプユニット２３は、弾性部材５３で形成される各据付座に、各支持ベース４８を載せ、弾性部材５４で形成される据付座に、支持ベース４９を載せることによって、吸込側合流管２７と吐出側合流管２８の両間隔を支持スパンとして、支え部材５０に安定した姿勢で載置させてある。そして、図３に示されるように正面方向に突き出る吸込側合流管２７の支持ベース４８（１個のベースだけ）を、締結具、ボルト５０ａで支え部材５０に固定することによって、重量のあるポンプユニット２３の全体を、冷却ファン２９の吸込口２９ａが架台１の最も上部に配置され、多段タービンポンプ部２５につながる吸込側／吐出側の配管が下側に配置される姿勢で、安定して架台１に組み付けてある。
【００３６】
なお、ポンプユニット２３は、頭部側が弾性部材５３，５４の弾性で振れないよう、同ユニット２３の高い位置で補助的に支えてある。例えば図２、図６および図７に示されるように吐出ケーシング３３から突き出たブラケット５５を、背板３の内面に弾性変位可能に取り付けた支持具、例えばゴム部材などの弾性部材５６により弾性支持された支持ボルト５７で、ポンプ荷重が作用しないよう横方向から支えることによって、ポンプユニット２３が振れないように規制させてある。
【００３７】
また支え部材５０の近傍となる背板３の内面には、制振部材、例えば粘性の高いプレート状の制振材５８が取着されていて、背板３が支え部材５０から伝わるタービンポンプ２６の振動で振れない構造にしている（図７に図示）。但し、３ａは、背板３の内面に、支え部材５０の近傍を通過するよう、幅方向に連続して設けられた補強材である（図７に図示）。
【００３８】
アキュムレーター２２も、ポンプユニット２３と同様、背板３の内面から、側板５の張出し長さ以上、正面方向に突き出る支え部材５９（例えばチャンネル部材よりなる）の先端部に、アキュームレーター２２の下部に形成した支持ベース２２ａを締結、例えばボルトで締結することによって、架台１に組み付けてある。そして、このアキュームレーター２２の出入口２２ｂが、メンテナンス用の開閉弁、例えばボール弁６０、フレキシブル管６１を介して、チェック弁４５より下流となる吐出側合流管２８の地点に接続してある。
【００３９】
一方、図２〜図４に示されるように背板３、側板４およびスカート板７で囲まれる角形の開口１ａには、同開口を塞ぐようにドレン受け用のトレイ６５が設けてある。トレイ６５は、例えばＶ字状に折れ曲がったプレートを、背板３と側板５とスカート板７とがなす角形の枠内に収めて、地上から離れた高さの地点において開口１ａを塞ぎ、同プレートの周縁部を背板３、側板５およびスカート板７の内面に水密となるよう接合してなる。むろん、プレートは、外部との取り合い損わないよう貫通孔９，１２およびケーブル孔１１よりも下方の地点に組み付けてある。このトレイ６５で、ポンプユニット２３や配管などから滴下する結露水などのドレンを受けて、Ｖ字形の傾斜面が交わる最下部に溜まるようにしている。これで、屋内でも給水装置が使用できる構造にしてある。なお、トレイ６５の板面には、上下方向から外部と配管取り合いをなすための吸込配管用と吐出配管用の貫通孔６６が形成してある。但し、貫通孔６６は、使用しないときはキャップ６７で塞いである。
【００４０】
また集溜部を形成するトレイ６１の最下部の両側下部には、同最下部からスカート板７の左右ドレン孔１０（トレイ６１の最下部より下側にある）へドレン水を導く継手、例えばエルボ管６８が取り付けてある。外部（スカート板７の外面）に臨むエルボ管６８の端部は、通常はキャップ（図示しない）で塞がれていて、同キャップを取り外し、代わりに排水管（図示しない）を接続すれば、所望の場所にトレイ６５に溜まるドレン水を排水できるようにもしてある。なお、ドレン水を排水する個所は、複数個所でなく、１個所でもよい。
【００４１】
また背板３の下段には、左右方向に延びるよう、逆流防止装置７０（中間室７０ａと同中間室７０ａを挟んで配置される一対のチャッキ弁７０ｂを組合わせたもの）を組み付けた吸込配管７１が、ポンプユニット２３のときと同様の手法で組み付けてある。なお、７０ｃは逆流防止装置７０の漏水口（逆流した水を排水させる出口）を示す。
【００４２】
すなわち、吸込配管７１は、左側から順に、下向きエルボ管７２（入側）、メンテナンス用の開閉弁７３、ストレーナー７４、逆流防止装置７０、上向きエルボ管７５（出側）を連結して構成される。そして、逆流防止装置７０の一次側となるエルボ管７２のコーナー部には、吸込圧力（水道本管の圧力）を検出する圧力検出器７２ａが組み付けてある。また吸込配管７１の側部には、左右両側に脚部７６を有するプレート７７が添設してある。但し、脚部７６は、吸込配管７１の側部から同吸込配管７１の下側へ張り出すＬ字状のプレート部分で形成してある。
【００４３】
背板３の下段の左右両側には、側板５の張出し長さ以上、正面方向に突き出る支え部材７８がそれぞれ取り付けられている。支え部材７８は、いずれも一端が背板３の内面に固定され他端がトレイ６５の上面に固定されたＬ帯形のプレートと、この各プレートの先端部上面に取付けた偏平矩形状の弾性部材７９（例えばゴム部材とばね部材とを組合わせて形成されるもの）が取着されている。
【００４４】
逆流防止装置７０を含む吸込配管７１は、図２〜図４に示されるようにこの弾性部材７９で形成される各据付座に、脚部７６を載せ、これを、締結具、例えばボルトで支え部材７８に締結することによって、背板３に組み付けてある。
【００４５】
この吸込配管７１のエルボ管７５（上向き）端は、メンテナンス用の開閉弁、例えばボール弁８０を介して、吸込側合流管２７の入口端と接続、例えばフランジ接続で着脱可能に接続されている。これで、水道本管（図示しない）に直結して使用する直結給水式増圧給水装置を構成している。なお、直結給水式でない給水装置は、吸込配管７１を取り外せばよい。
【００４６】
そして、最も凍結しやすい環境に置かれる圧力検出器７２ａの近傍、例えばエルボ管７２の側面には、凍結防止用のヒーター８１が取り付けてある。
【００４７】
この各種機器が組み付けられた架台１と、同機器を覆うポンプカバー８５とが組み合わさり、図１〜図４に示されるような奥行き寸法が狭く高さ寸法の高い、縦型の屋外仕様の給水装置を構成している。
【００４８】
具体的には、ポンプカバー８５は、内のり寸法を架台１の正面から見た外形より若干、大きくし、背面、下面の二面が開口した箱状をなしている。そして、このポンプカバー８５が、正面方向から各機器を覆うように架台１の周りに被してある。具体的には、ポンプカバー８５は、同カバー８５の上側の縁部内面が天板４と重なり、左右方向の縁部内面が左右の側板５と重なり、下部の周縁部内面がスカート板７およびそれに続く側板５部分と重なるよう、架台１の正面方向から被せて、各種機器がある領域をほぼ密閉にしている。そして、上側の縁部両側から天板４の左右方向両側に挿入される装置吊り下げ用のアイボルト８６（給水装置全体を吊り下げるときに用いる部材）で、ポンプカバー８５と架台１とを両者間にシール部材を挟んで締結してある。なお、８９ａは天板４，ポンプカバー８５の上縁部に形成したアイボルト用のボルト孔を示している。
【００４９】
またポンプカバー８５は、図３および図４に示されるようにタービンポンプ２６と向き合う正面壁８５ａが、連結管４０の中段付近から上方に向うにしたがいＤＣモーター２４との間が狭まる方向に傾斜していて、同傾斜部８５ｂによる空間の制限により、ＤＣモーター２４の正面側で、冷却ファン２９でのショートサーキット（吸込口２９ａからの吹出風がそのまま吹出口２９ｂに吸込まれる現象）が起きにくくしている。そして、このタービンポンプ２６と接近する傾斜部８５ｂの内面には、タービンポンプ各部からの騒音を効果的に吸収するよう吸音材８７が設けてある。
【００５０】
またポンプカバー８５の内面には、スカート板７の上端位置と同じかそれより若干上側の位置から上方の地点に渡り、逆流防止装置７０を含む吸込配管７１の周りを囲むように断熱性を有した吸音材８８が取り付けてあり、内部雰囲気が最も冷たくなる装置下部を保温すると同時に、ポンプカバー８５の下部端から内部の騒音が漏れないようにしている。
【００５１】
この他、ポンプカバー８５の内面各部には吸音材８９が取り付けられていて、ポンプカバー８５から外部へ騒音が漏れるのを防ぐ構造にしてある。さらに背板３の上部背面には、転倒防止用の金具、すなわちボルト挿入孔９０ａを有するプレート９０が取着されていて、給水装置の設置時、建物などの壁面にプレート９０を締結すれば、据え付けた給水装置が転倒しないようにしている。
【００５２】
またポンプカバー８５の正面壁８５ａの下段には、逆流防止装置７０の漏水状態を外部から目視で点検するための漏水点検用の窓９１が設けられている。また上段には、制御部２１の各種表示部２１ｂを外部から目視するための窓９２ａ，ポンプ状態を目視するための窓９２ｂが設けられている。なお、これら上段の窓９２ａ，９２ｂは、窓９１から漏水状態を見るときの明かり取りも兼ねている。
【００５３】
こうした給水装置を据え付けるときは、屋外あるいは屋内の据付場所に、アンカー用プレート１５をアンカーボルト９３で締結し、転倒防止用のプレート９０を架台１の裏面に添う建物の壁面などにボルト止めして給水装置を固定してから、例えばスカート板７の貫通孔９，１２を用いて、水道本管（図示しない）から分かれた水道管９４を吸込配管７１の入口に接続し、同じく吐出側合流管２８の出口を蛇口（図示しない）につながる給水配管９５に接続すればよい。
【００５４】
ここで、制御盤２１は、背板３の内面に添わせて配線されたケーブル類（図示しない）を通じて、各機器に接続されている。
【００５５】
この制御盤２１により、タービンポンプ２６のうちの片側（１台）は、吐出側の圧力検出器１７からの圧力信号から吐出圧力が目標圧力より低いことを検出すると、同目標圧力を一定に保つように運転（一定圧制御）される。つまり、タービンポンプ２６は、吸込配管７１，吸込側合流管２７を通じて吸込まれる水道管９４からの水を一定圧となるよう増圧し、この増圧した水を連結管４０，吐出側合流管２８，給水配管９５を通じて、蛇口へ供給する。
【００５６】
また使用水量が少なくなると、流量検出器４６の流量信号にしたがい、同タービンポンプ２６の回転数（能力）を低下させる。さらに所定使用水量以下になると、運転しているタービンポンプ２６を停止させ、アキュームレータ２２による給水に移る。
【００５７】
タービンポンプ２６の運転中は、ＤＣモーター２４の冷却ファン２９により、ポンプカバー８５内の各部は冷却されている。具体的には、ポンプカバー８５内の最上層の空気は、吸込口２９ａから吸込まれ、同空気が吹出口２９ｂからＤＣモーター２４のモーター本体へ沿って吹き出される。これにより、吹出風は、ＤＣモーター２４を冷却して、下部側に在る水が通過するポンプ部２５，同じく配管へと流れる。このとき、ＤＣモーター２４の冷却で温度上昇した排気流（熱風）は、給水される水で冷たくなっているポンプ部２５の外壁面、配管部材の外壁面と触れることで熱交換して冷却される。そして、この冷却された排気流が、ポンプカバー８５内の各部に導かれて各部を冷却する。この各部での熱交換により排気流は、温度上昇しながら上昇して、ポンプカバー８５内の上部へ至る。そして、再び冷却ファン２９から吸込まれるというサイクルが繰り返し行われ、常にポンプカバー８５内は循環する冷却風で冷却される。
【００５８】
また運転中、水道本管の圧力が目標圧力を超える圧力になると（高配水時）、タービンポンプ２６へ向う水が、バイパス用チェッキ弁４５を通じて、吐出側合流管２８へバイパス（短絡）される。またチェッキ弁４５とポンプ吸込口３０との間にある流量検出器４６が、タービンポンプ２６へ向う水量の減少（少水量）を検出して、タービンポンプ２６の運転を停止させる。これにより、給水装置で増圧を行わずに、直接、水道本管からの圧力水が蛇口へ導かれていく。
【００５９】
こうした給水装置だと、架台１に、アキュームレーター２２、吸込側合流管２７／吐出側合流管２８をもつタービンポンプ２６、逆流防止装置７０をもつ吸込配管７１を組み付けるときは、背板３に組み付けた、架台１の天板４および側板５以上に正面方向に突き出た支え部材５０，５９，７８に、各機器を組み付けるので、組み付けは、天板４や側板５に制約されずに行える。すなわち、図７中の符号Ｘで示されるように周囲に障害物の無い、支え部材５０，５９，７８の周りの広い開放空間を作業空間として用いて組み付け作業を進めることができる。そのため、組み付け作業は容易である。しかも、縦置きの背板３に各種機器を組み付ける構造であるから、従来のボックス構造と同様、占有床面積は小さくてすみ、小占有床面積と給水ポンプ機器の組付作業性の容易化を満足することができる。そのうえ、架台１は、左右側および上部が前方に若干、張り出た背壁３を用い、これをアンカー用プレート１５で自立させる構造なので、構造は簡単で、重量も軽く、製造コストも安価である。
【００６０】
また吸込合流管２７と吐出側合流管２８と並行に配置される複数台の縦型のタービンポンプ２６とを組み合せたポンプユニット２３を用い、このうち吸込側合流管２７、吐出側合流管２８に支持ベース４８，４９を形成して、支え部材５０に載せる構造を採用したので、重量のある多段タービンポンプ部２５を含むポンプユニット全体は、奥行き方向に並んで配置される吸込側合流管２７と吐出側合流管２８との間隔を活用して、安定して受け止めることができ、少ない支持個所、具体的には３個所で、ポンプユニット２６の背板３に対する組み付けを行うことができ、複数台の縦型ポンプ、吸込側／吐出側配管を合理的に架台１に組み付けることができる。
【００６１】
また支持ベース４８，４９と支え部材５０との間に弾性部材５３，５４を介装するだけでなく、支え部材５０の近傍の背壁内面に制振材５８を設けたので、吸込側合流管２７、吐出側合流管２８から背板３へ伝わろうとするタービンポンプ２６からの振動は、弾性部材５３，５４で吸収されるだけでなく、支え部材５０から背板３へ伝わる振動も、制振部材５８で抑制できるので、タービンポンプ２６が発する振動で架台１が振動するのを効果的に防ぐことができる。
【００６２】
また転倒防止用のプレート９０が取り付けてあるので、給水装置の設置時、背板３に沿う建物の壁面などに、プレート９０を締結することにより、たとえ地震で地面が揺れることがあっても、給水装置の転倒を防ぐことができ、現地で据え付けた給水装置が無用に転倒するのを防止できる。
【００６３】
また逆流防止装置７０を含む吸込配管７１を、支え部材７８に弾性部材７９を介して載せた構造を採用したことにより、逆流防止装置７０から架台１へ伝わろうとする振動は、弾性部材７９で吸収されるから、直結給水式を採用しても、架台１に伝わる振動は少なくてすみ、逆流防止装置７０が付くことを要因とした架台１の振動を防ぐことができる。
【００６４】
また箱状のポンプカバー８５を正面方向から架台１に被せる構造の採用により、架台１に取り付いた各種機器は、周囲がポンプカバー８５により覆われて遮蔽されるから、同機器が雨、風にさらされるのを防ぐことができる。と同時に同機器の騒音が外部へ出るのを遮ることができる。つまり、雨、風の影響に耐える、低騒音の屋外仕様の給水装置を実現することができる。しかも、ポンプカバー８５は、装置吊り下げ用のアイボルト８６で架台１に固定してあるので、別途、ポンプカバー８５を取り付けるためのねじ類は不要で、コスト的にも安価である。そのうえ、ポンプカバー８５は、架台１の正面方向から外したり取り付けたりする構造であるから、たとえ幅方向両側に障害物が在るような場所に給水装置が据え付けられても、メンテナンスのときなどでは、障害物に影響されずに、容易にポンプカバー８５の脱着作業を行うことができる。
【００６５】
また背板３の下部に、ポンプカバー下部の内面と重なるスカート板７を形成し、このスカート板７に外部との配管取り合いなす貫通孔９，１２を形成したので、配管施工を終えた後からでも、設置した給水装置の内部機器のメンテナンスを行うときは、ポンプユニット２３や吸込配管７１と取り合う配管はそのまま変えずに、ポンプカバー８５を取り去るだけで、容易に架台１に組み付けた機器の取り外しや取り付けを行うことができる。
【００６６】
また全閉モータに付く冷却ファン２９の吸込口２９ａを上部に配置し、配管を下側に配置してタービンポンプ２６を架台上部に組み付け、タービンポンプ２６と向き合うポンプカバー８５の正面壁８５ａを、該ポンプ２６との間が狭まるように傾斜させたので、全閉モーターを冷却した冷却ファン２９からの排気流（熱風）は、ポンプカバー８５の傾斜部がもたらす抑えにより、ファンの吸込口へショートサーキットする流れが形成されずに、ポンプカバー８５内を循環するようになり、ポンプカバー８５内の上部に熱が滞留することなく、ポンプカバー８５内の各部を十分に効果的に冷却させることができる。
【００６７】
またこの傾斜した正面壁８５ａの内面に吸音材８７を設けて、全閉モーターに対し接近する傾斜面を活用して、全閉モーターから発する騒音を吸収するようにしたので、低騒音の点に優れる全閉モーターからの騒音をさらに低減することができる。
【００６８】
またポンプカバー８５に逆流防止装置７０を目視する窓９１を形成したので、ポンプカバー８５を開けずに、外部から、窓９１を通して逆流防止装置７０の漏水状態が確認できる。特に窓９１は下側に在るが、制御盤２１を目視する窓９２ａ，モーター状態を見る窓９２ｂから明かりが入るので、見ずらいことはない。
【００６９】
また吸込圧を検出する圧力検出器７２ａの近傍の部分に凍結防止用ヒーター８１を組み付け、逆流防止装置７０を囲むポンプカバー８５の内面部分に、断熱性を有した吸音材８８を取り付けたので、内部雰囲気が最も冷たくなる装置下部の逆流防止装置７０をヒーター８１で保温しながら、同ヒーター８１で逆流防止装置７０の一次側に配置される、接水部が細く凍結しやすくなっている圧力検出器７２ａを重点に保温することができ、防音しつつ最も凍結しやすい個所を効果的にヒーター８１で保温することができる。
【００７０】
なお、上述した一実施形態では、直結給水式の給水装置を例に挙げているが、これに限らず、逆流防止装置の無い給水装置でも構わない。
【００７１】
【発明の効果】
以上説明したように請求項１に記載の発明によれば、周囲に障害物の無い、支え部材の周囲の広い開放空間を作業空間として、支え部材に給水ポンプ機器を組み付けることができ、給水ポンプ機器の組み付け作業は容易である。しかも、縦置きの背板に給水ポンプ機器を設置する構造なので、従来のボックス構造と同様、占有床面積は小さくてすむ。
【００７２】
したがって、小占有床面積と給水ポンプ機器の組付作業性の容易化との双方を満足することができる。しかも、架台は、左右側および上部が前方に若干、張り出た背壁をアンカー用プレートで自立させる構造なので、構造は簡単であり、重量も軽く、製造コストも安価である。
【００７３】
請求項２に記載の発明によれば、さらに上記効果に加え、少ない支持個所で、縦型ポンプを吸込側配管および吐出側配管を合理的に背板に支持させることができるといった効果を奏する。
【００７４】
請求項３に記載の発明によれば、さらに上記効果に加え、縦型ポンプが発する振動で架台が振動するのを効果的に防ぐことができるといった効果を奏する。
【００７５】
請求項４に記載の発明によれば、さらに上記効果に加え、現地で据え付けた給水装置が無用に転倒するのを防ぐことができるといった効果を奏する。
【００７６】
請求項５に記載の発明によれば、さらに上記効果に加え、直結給水式の給水装置を構成する逆流防止装置から架台へ伝わる振動を防ぐことができるといった効果を奏する。
【００７７】
請求項６に記載の発明によれば、さらに上記効果に加え、雨、風の影響に耐える構造で、低騒音の屋外仕様の給水装置を実現することができるといった効果を奏する。
【００７８】
請求項７に記載の発明によれば、さらに上記効果に加え、配管施工した後からでも、ポンプカバーを取り去るだけで、容易に給水ポンプ機器の取り外し、取り付け作業を容易に行うことができるといった効果を奏する。
【００７９】
請求項８に記載の発明によれば、さらに上記効果に加え、熱の滞留なく、全閉モーターに内蔵の冷却ファンで、ポンプカバー内の各部を効果的に冷却できるといった効果を奏する。
【００８０】
請求項９に記載の発明によれば、さらに上記効果に加え、全閉モーターからの騒音を効果的に低減することができるといった効果を奏する。
【００８１】
請求項１０に記載の発明によれば、さらに上記効果に加え、直結給水式を構成する逆流防止装置の漏水状態が外部から確認できるといった効果を奏する。
【００８２】
請求項１１に記載の発明によれば、さらに上記効果に加え、防音しつつポンプカバー内の最も凍結しやすい個所を効果的に保温することができるといった効果を奏する。
【図面の簡単な説明】
【図１】本発明の一実施形態に係る給水装置の正面図。
【図２】同給水装置のポンプカバーを断面した正面図。
【図３】（ａ）は図１中のＡ−Ａに沿う側断面図。
（ｂ）は図１中のＢ−Ｂに沿う側断面図。
【図４】図１中のＣ−Ｃに沿う側断面図。
【図５】図１中のＤ−Ｄに沿う平断面図。
【図６】タービンポンプに接続される吸込側合流管、吐出側合流管の構造を説明するための図。
【図７】給水ポンプの全体の構造を説明するための分解斜視図。
【符号の説明】
１…架台
２…背壁
４，５…天板，側板（板部）
７…スカート板
９，１２…貫通孔
１５…アンカー用プレート
２０…給水ポンプ機器
２３…縦型のポンプユニット
２４…ブラシレスＤＣモータ（全閉モーター）
２５…多段タービンポンプ部
２７…吸込側合流管
２８…吐出側合流管
２９…冷却ファン
２９ａ…吸込口
２９ｂ…吐出口
４８，４９…支持ベース
５０，５８，７８…支え部材
５３，５４，７９…弾性部材
５８…制振材（制振部材）
７０…逆流防止装置
７１…吸込配管
８１…凍結防止用ヒーター
８５…ポンプカバー
８６…アイボルト
８８…吸音材
９０…プレート（転倒防止用金具）
９１…窓。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water supply apparatus that supplies water to a home, for example.
[0002]
[Prior art]
Water supply systems such as apartments and condominiums use a water supply device installed outdoors or indoors to supply water to each household.
[0003]
In such a water supply apparatus, an apparatus having an occupied floor area as small as possible is desired so as not to be restricted by the installation location.
[0004]
Therefore, a water supply device that places importance on a small occupied floor area uses a box structure case with a narrow depth dimension, a high height dimension, and an opening on the front side. A structure in which water supply pump equipment, for example, a plurality of pumps, a suction side merging pipe, a discharge side merging pipe, an accumulator, and the like are assembled has come to be adopted.
[0005]
[Problems to be solved by the invention]
However, with this structure, the floor area occupied by the water supply device can certainly be reduced, but it is compelling to assemble each device and component in a narrow box structure case surrounded by walls. In particular, since the case is small enough to accommodate the water pump equipment, the gap between the equipment and parts and the wall of the case is small, and the assembling work of each equipment and parts is quite troublesome.
[0006]
The present invention has been made paying attention to the above circumstances, and its object is to provide a water supply apparatus that satisfies both the small occupied floor area and the ease of assembling workability of the water supply pump equipment. is there.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the water supply device according to claim 1 satisfies the mechanical strength by forming a back plate and a plate portion protruding in a front direction on both the left and right edges and the upper edge of the back plate. A back wall and an anchor plate attached to the lower end of the back wall. A plurality of support members attached so as to protrude in the front direction beyond the overhanging length of the plate portion at the edge of the water supply pump device are combined, and the water supply pump device is mounted on these support members.
[0008]
In this water supply device, the support member protrudes in the front direction from the plate parts on both sides of the back plate, so when assembling water pump equipment such as pumps and various pipes to the support member, the support member without the plate part Assembling work can be carried out using a wide open space around the as a work space, and the work for assembling the water supply pump device becomes easy. In addition, since the water supply pump device is installed on the vertical back plate, the necessary occupied floor area is small as in the conventional box structure. In addition, the gantry has a structure in which the left and right sides and the upper part of the back wall are slightly overhanging forward, and is self-supporting with an anchor plate. Therefore, the structure is simple, the weight is light, and the manufacturing cost is low.
[0009]
In addition to the above object, the water supply device according to claim 2 further includes a plurality of units arranged in parallel so that the vertical pump can rationally support the suction side pipe and the discharge side pipe on the back plate with a small number of support points. A pump unit having an electrically driven vertical pump, a suction side merge pipe extending in the left-right direction connected to the suction port of each pump, and a discharge side merge pipe extending in the left-right direction connected to the discharge port of each pump The water supply pump equipment was constructed, and a support base was formed on the suction-side merging pipe and the discharge-side merging pipe, and the support unit was mounted on a support member and the pump unit was assembled to the gantry.
[0010]
As a result, the entire pump unit including the heavy pump can be stably received by utilizing the interval between the suction-side merging pipe and the discharge-side merging pipe arranged in the depth direction as a support span. Assemble the pump unit.
[0011]
In addition to the above object, the water supply device according to claim 3 is provided with an elastic member interposed between the support base and the support member in order to prevent the gantry from vibrating due to vibrations generated by the vertical pump. A structure in which a damping member is provided on the inner surface of the back wall in the vicinity of is adopted.
[0012]
Thereby, the vibration from the vertical pump which is going to be transmitted from the suction side merging pipe and the discharge side merging pipe to the back plate is absorbed by the elastic member between the support base and the support member. Still, vibration transmitted from the support member to the back plate is suppressed by the vibration control member in the vicinity of the support member, so that effective vibration prevention can be performed.
[0013]
The water supply device according to claim 4 is provided with a metal fitting for preventing overturning on the back plate so that the water supply device installed on site does not fall down unnecessarily.
[0014]
Thus, when the water supply apparatus is installed, the fall of the water supply apparatus can be prevented even if the ground is shaken by an earthquake by fastening the metal fitting for overturning to the wall surface of the building along the back plate.
[0015]
The water supply device according to claim 5 includes a backflow prevention device in the direct water supply type in which the backflow prevention device is assembled on the suction side in order to prevent vibration transmitted from the backflow prevention device constituting the directly connected water supply type water supply device to the mount. The pipe was placed on a support member protruding from the back plate via an elastic member.
[0016]
Thereby, the vibration which is going to be transmitted from the backflow prevention device to the gantry is absorbed by the elastic member, and the gantry is prevented from vibrating.
[0017]
The water supply device according to claim 6 has a structure that can withstand the influence of rain and wind, and a box-shaped pump cover whose inner dimension is larger than the outer shape of the gantry so as to realize a low-noise outdoor-use water supply device. The top of the pump cover was fastened to the plate on the top of the back plate with eyebolts for hanging the entire water supply device.
[0018]
Thereby, since the surroundings of the water supply pump device attached to the gantry are covered and shielded by the pump cover, the water supply pump device can be prevented from being exposed to rain and wind. At the same time, the noise of the water supply pump equipment is blocked from going outside, making the water supply device suitable for outdoor installation. In addition, since the pump cover is fixed to the gantry with eyebolts for hanging the apparatus, screws for attaching the pump cover are not required separately. In addition, since the pump cover is structured to be removed or attached from the front direction of the gantry, the pump cover can be easily attached and detached even if there are obstacles on both sides in the width direction of the water supply device.
[0019]
The water supply device according to claim 7 protrudes in the front direction from the left and right side plate parts to the lower part of the back plate so that maintenance with the removal and installation work of the water supply pump equipment can be easily performed even after the pipe construction. A U-shaped skirt plate that bends while overlapping with the inner surface of the lower portion of the pump cover was formed, and a through-hole was formed in the skirt plate for mating with the water supply pump device.
[0020]
As a result, even after installing the water supply device and installing the piping in the through-hole of the skirt, when performing maintenance on the water supply pump device, leave the pump cover without changing the piping to be connected to the water supply pump device. By simply removing it, you can easily remove and attach the device assembled to the mount.
[0021]
The water supply apparatus according to claim 8, wherein the upper part of the fully-closed motor including a cooling fan that sucks in from above and blows out downward is provided so that each part in the pump cover is effectively cooled by the cooling fan of the motor without heat retention. The electric drive type vertical pump placed in is used as a water supply pump device, the cooling fan suction port is arranged at the upper part, the piping connected to the vertical pump is arranged at the lower side, and the vertical pump is installed at the upper part of the pedestal with a support member In addition, the front wall of the pump cover facing the vertical pump was inclined so that the distance from the vertical pump narrowed toward the upper side.
[0022]
As a result, the exhaust flow (hot air) from the cooling fan that has cooled the fully-closed motor is suppressed by the inclined part of the pump cover. After being led and cooled, it is led to each part in the pump cover to exchange heat, then led again to each part in the pump cover and raised while heat exchange (temperature rise), and again a cooling fan for the fully closed motor Thus, each part in the pump cover is sufficiently cooled without the heat remaining in the upper part in the pump cover.
[0023]
The water supply device according to claim 9 adopts a structure in which a sound absorbing material is provided on the inner surface of the inclined front wall in order to effectively reduce noise from the fully closed motor, and approaches the fully closed motor. By using the inclined surface, the noise generated from the fully closed motor is effectively absorbed.
[0024]
The water supply device according to claim 10 adopts a directly connected water supply type in which a backflow prevention device is assembled on the suction side so that the leakage state of the backflow prevention device constituting the direct connection water supply type can be confirmed from the outside. In addition, a window for checking the leakage of the backflow prevention device is formed so that the state of the backflow prevention device can be seen through the window without opening the pump cover.
[0025]
The water supply device according to claim 11 is a pressure detector on the primary side of the backflow prevention device that is assembled to the lower part of the back plate with a support member in order to effectively keep the most freezing portion in the pump cover. A freezing prevention heater was assembled in the vicinity, and a sound absorbing material having heat insulation was attached to the inner surface portion of the pump cover surrounding the backflow prevention device.
[0026]
As a result, the pressure on the primary side of the backflow prevention device that keeps the water contact part thin and easy to freeze by the heater while keeping the backflow prevention device arranged at the lower part of the water supply device where the internal atmosphere becomes the coldest with the heater. The temperature of the detector is kept warm, and the portion of the water supply pump device that is most likely to freeze while being soundproofed is effectively kept warm by the heater.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on an embodiment shown in FIGS.
[0028]
1 is a front view of a water supply apparatus to which the present invention is applied, FIG. 2 is a front sectional view of the water supply apparatus, and FIGS. 3 (a), (b) to FIG. 5 are views A to D in FIG. FIG. 6 is a front view showing the water supply pump confluence piping system, FIG. 7 is a diagram showing the structure of each part of the water supply device, and reference numeral 1 in FIG.
[0029]
As shown in FIG. 7, the gantry 1 is formed by combining a square back wall 2, a U-shaped skirt plate 7, and a pair of left and right anchor plates 15.
[0030]
Specifically, the back wall 2 includes a rectangular back plate 3 extending vertically in the vertical direction, an inward top plate 4 (corresponding to a plate portion) formed on the entire upper edge of the back plate 3, and the top plate. 4 and an inward side plate 5 (corresponding to the plate portion) formed on the entire left and right edges of the back plate 3 that is continuous with the back plate 3. The top plate 4 and the side plate 5 at the three-way edges are both protruded by a small amount, for example, about 40 mm in the front direction, and due to the rigidity provided by the top plate 4 and the side plate 5 protruding inward, the back formed by the plate is formed. The wall 3 ensures a mechanical strength that is sufficiently satisfactory for mounting the pump, without causing problems such as stickiness. Further, a band-shaped plate bent in a U-shape protrudes in the front direction from the lower part of both the left and right side plates 5, and a U-shaped skirt plate 7 is formed in the lower portion of the back wall 3. On one wall of the skirt plate 7, for example, the left wall, a through hole 9 for a suction pipe, a drain hole 10, and a cable hole 11 are formed in order from the depth side in order to make piping connection with the outside from the lateral direction. ing. On the right wall of the skirt plate 7, a through hole 12 for a discharge pipe and a drain hole 13 are formed in order from the front (front side) side to make piping connection with the outside from the lateral direction. Further, a band plate is attached from the lower left and right sides of the skirt plate 7 to the lower ends of the side plates 5, and a pair of left and right anchor plates 15 are formed in the lower part of the gantry 1. As a result, the gantry 1 having a narrow depth dimension and a high height dimension, which is self-supporting with the gantry anchor plate 15 facing down and the back plate 3 as the back, is configured. An anchor bolt insertion hole 15a (shown only in FIG. 7) is formed on the plate surface of each anchor plate 15.
[0031]
A water supply pump device 20 and a control panel 21 for controlling the water supply pump device 20 are assembled on the inner surface of the back plate 3 forming the gantry 1. That is, on the upper left side of the back plate 3, a square box-shaped control panel 21 incorporating various control devices such as an inverter is assembled via a bracket 21a. An accumulator 22 that is the feed water pump device 20 is assembled below the control panel 21. Further, on the right side of the back plate 3, a vertical pump unit 23, which is the feed pump device 20, is assembled adjacent to the control panel 21 and the accumulator 22.
[0032]
Specifically, the pump unit 23 has a brushless DC motor 24 (hereinafter simply referred to as a DC motor 24) using a motor, for example, a rotor as a rotor, in the upper part, and a pump unit directly connected to the DC motor 24 in the lower part. For example, a plurality of vertical multistage turbine pumps 26 having a multistage turbine pump section 25 (hereinafter simply referred to as a pump section) are arranged in parallel in the left-right direction, for example, two, and a suction side merge pipe 27 and the discharge side junction pipe 28 are combined. Specifically, a fully closed motor is used as the DC motor 24. In the upper part of the fully closed motor, a cooling fan 29 (as shown in FIG. 2 only) is sucked from the upper suction port 29a and blown out from the lower outlet 29b along the outer peripheral surface of the motor body. ) Is built-in. The multi-stage turbine pump 26 includes a suction casing 31 having a pump suction port 30 that opens downward in a lower portion, and a discharge casing 33 having a pump discharge port 32 that opens in a front direction in the upper portion (both shown in FIG. 3 and FIG. 4), a plurality of intermediate casings 35 containing impellers 34 are fastened, and each impeller 34 and a motor shaft 24 a extending from the DC motor 24 are connected. A maintenance on-off valve, for example, a ball valve 36, and a suction-side merging pipe 27 extending in the left-right direction are connected to each pump suction port 30 of the multi-stage turbine pump 26 in a detachable manner, for example, by flange connection. The suction side merging pipe 27 is closed at the left end with a plug 37 and bent at the right end so as to draw an inverted L shape and extends downward. The pipe portion 27a extending in the lateral direction of the suction side merging pipe 27 is assembled with a freezing prevention heater 38 on both sides. Each pump discharge port 32 of the multistage turbine pump 26 is connected to an L-shaped connection pipe 40 extending downward (vertical direction) from the discharge port 32 (shown in FIG. 6). A swing-type check valve 40b is incorporated in an elbow part 40a (a part that bends approximately 90 °) formed integrally with the upper end of the connecting pipe 40. The lower end of the connecting pipe 40 extends from the position of the pump suction port 30 to a lower point. At the end of the connecting pipe 40 that is shifted downward from the pump suction port 30, similarly to the suction side, a maintenance on / off valve, for example, a ball valve 41 and a discharge-side merging pipe 28 that bends in a reverse L-shape is flange-connected. It is connected with. A pressure detector 17 for detecting the discharge pressure is assembled to the left end of the pipe portion 28a extending in the lateral direction of the discharge side merge pipe 28. Further, the pipe portion 28 b extending downward of the discharge side merging pipe 28 is arranged so as to face (substantially parallel) the pipe portion 27 b extending downward of the suction side merging pipe 27. And the middle of these pipe parts 27b and 28b is connected via the bypass part 43 which bypasses to a discharge side at the time of high water distribution (when the pressure on a suction side is higher than a target pressure) (illustrated in FIG. 4). The bypass unit 43 includes a bypass pipe 44 that communicates between the pipe part 27b and the pipe part 28b, and a bypass check that has a function of opening only in the direction toward the discharge side merging pipe 28 that is housed in the bypass pipe 44. And a valve 45. A flow rate detector for stopping a small amount of water (in order to stop the pump as the amount of water becomes smaller than the target amount of water) is provided in the vertical pipe portion 27b of the suction side merging tube 27 from the bypass check valve 45 to the pump suction side. For example, a paddle type flow detector 46 is incorporated. A freezing prevention heater 47 is also attached to the pipe portion 28a extending in the lateral direction of the discharge side joining pipe 28.
[0033]
In the pump unit 23, the pipe portions 27a (portions extending in the horizontal direction) of the suction side merging pipe 27 are alternately extended laterally across the pipe portions 27 as shown in FIG. Two rectangular support bases 48 are formed. A rectangular support base 49 (extending toward the tube portion 27a) is provided at the end (pressure detector 17 side) of the tube portion 28a of the discharge-side merging tube 28 that is arranged to be shifted downward from the tube portion 27a. 1) is formed.
[0034]
On the other hand, a support member 50 for installing the pump unit is attached to the right middle part of the back plate 3 as shown in FIG. The support member 50 has one end of a support member 51 formed of, for example, a U-shaped sheet metal fixed to the inner surface of the back plate 3, and both end walls 52 of the sheet metal are arranged in two upper and lower stages. A structure in which the other end of 52 is protruded from the inner surface of the back plate 3 is used. Specifically, the upper and lower end walls 52 have a triangular shape on the upper side and a band shape on the lower side, both of which have a dimension equal to or longer than the overhang length of the top plate 4 and the side wall 5 of the gantry 1. Sticks out. Of these, a flat rectangular elastic member 53 formed by combining, for example, a rubber member and a spring member is attached to the distal end side and the base side of the upper end wall 52 corresponding to the position of each support base 48. Has been. Further, a similar flat rectangular elastic member 54 is attached to the front end side of the lower end wall 52 corresponding to the position of the support base 49.
[0035]
The pump unit 23 mounts each support base 48 on each installation seat formed by the elastic member 53, and mounts the support base 49 on the installation seat formed by the elastic member 54. The gaps between the side merging pipes 28 are placed on the support member 50 in a stable posture with the support span as the support span. Then, as shown in FIG. 3, the support base 48 (only one base) of the suction side merging pipe 27 protruding in the front direction is fixed to the support member 50 with fasteners and bolts 50a, thereby providing a heavy pump. The entire unit 23 is stably in such a posture that the suction port 29a of the cooling fan 29 is arranged at the uppermost part of the gantry 1 and the suction side / discharge side pipes connected to the multistage turbine pump unit 25 are arranged below. It is assembled to the gantry 1.
[0036]
The pump unit 23 is supplementarily supported at a high position of the unit 23 so that the head side does not swing due to the elasticity of the elastic members 53 and 54. For example, as shown in FIGS. 2, 6, and 7, the bracket 55 protruding from the discharge casing 33 is elastically supported by an elastic member 56 such as a rubber member attached to the inner surface of the back plate 3 so as to be elastically displaceable. The supported support bolt 57 is supported from the lateral direction so that the pump load does not act, so that the pump unit 23 is restricted from swinging.
[0037]
Further, a damping member, for example, a plate-like damping material 58 having a high viscosity is attached to the inner surface of the back plate 3 in the vicinity of the support member 50, and the turbine pump 26 that transmits the back plate 3 from the support member 50. The structure does not shake due to the vibration (shown in FIG. 7). However, 3a is a reinforcing material provided continuously in the width direction on the inner surface of the back plate 3 so as to pass through the vicinity of the support member 50 (shown in FIG. 7).
[0038]
Similarly to the pump unit 23, the accumulator 22 also has a lower portion of the accumulator 22 at the tip of a support member 59 (for example, made of a channel member) that protrudes in the front direction from the inner surface of the back plate 3 to the length of the side plate 5. The support base 22a formed on the base 1 is fastened, for example, fastened with bolts, and is assembled to the gantry 1. The inlet / outlet 22b of the accumulator 22 is connected to a point of the discharge side merging pipe 28 downstream of the check valve 45 via a maintenance on / off valve, for example, a ball valve 60 and a flexible pipe 61.
[0039]
On the other hand, as shown in FIGS. 2 to 4, a drain receiving tray 65 is provided in the rectangular opening 1 a surrounded by the back plate 3, the side plate 4 and the skirt plate 7 so as to close the opening. The tray 65, for example, stores a plate bent in a V shape in a rectangular frame formed by the back plate 3, the side plate 5, and the skirt plate 7, and closes the opening 1a at a height away from the ground. The peripheral edge of the plate is joined to the inner surfaces of the back plate 3, the side plate 5 and the skirt plate 7 so as to be watertight. Of course, the plate is assembled at a point below the through-holes 9 and 12 and the cable hole 11 so as not to lose contact with the outside. The tray 65 receives drainage such as condensed water dripping from the pump unit 23 or piping, and accumulates it at the lowest part where the V-shaped inclined surfaces intersect. Thus, the water supply device can be used indoors. In addition, on the plate surface of the tray 65, through holes 66 for suction piping and discharge piping for forming piping connection with the outside from the vertical direction are formed. However, the through-hole 66 is closed with a cap 67 when not in use.
[0040]
Further, on the lower portions on both sides of the lowermost portion of the tray 61 forming the collecting portion, a joint for leading drain water from the lowermost portion to the left and right drain holes 10 (below the lowermost portion of the tray 61) of the skirt plate 7, for example An elbow pipe 68 is attached. The end of the elbow pipe 68 facing the outside (the outer surface of the skirt plate 7) is normally closed with a cap (not shown). If the cap is removed and a drain pipe (not shown) is connected instead, The drain water accumulated in the tray 65 can be drained at a desired place. In addition, the place which drains drain water may be one place instead of multiple places.
[0041]
Further, a suction pipe in which a backflow prevention device 70 (a combination of an intermediate chamber 70a and a pair of check valves 70b disposed between the intermediate chambers 70a) is attached to the lower stage of the back plate 3 so as to extend in the left-right direction. 71 is assembled in the same manner as in the pump unit 23. Reference numeral 70c denotes a water leakage port of the backflow prevention device 70 (an outlet for draining backflowed water).
[0042]
That is, the suction pipe 71 is configured by connecting, in order from the left side, a downward elbow pipe 72 (input side), a maintenance on-off valve 73, a strainer 74, a backflow prevention device 70, and an upward elbow pipe 75 (exit side). . And the pressure detector 72a which detects suction pressure (pressure of a water main pipe) is assembled | attached to the corner part of the elbow pipe 72 used as the primary side of the backflow prevention apparatus 70. As shown in FIG. Further, a plate 77 having leg portions 76 on the left and right sides is attached to the side of the suction pipe 71. However, the leg portion 76 is formed of an L-shaped plate portion that projects from the side portion of the suction pipe 71 to the lower side of the suction pipe 71.
[0043]
Support members 78 protruding in the front direction beyond the length of the side plate 5 are attached to the left and right sides of the lower stage of the back plate 3. The support member 78 has an L-band plate in which one end is fixed to the inner surface of the back plate 3 and the other end is fixed to the upper surface of the tray 65, and a flat rectangular elastic member attached to the upper surface of the front end of each plate. A member 79 (for example, a member formed by combining a rubber member and a spring member) is attached.
[0044]
As shown in FIGS. 2 to 4, the suction pipe 71 including the backflow prevention device 70 mounts a leg portion 76 on each installation seat formed by the elastic member 79 and supports it with a fastener, for example, a bolt. By being fastened to the member 78, it is assembled to the back plate 3.
[0045]
The elbow pipe 75 (upward) end of the suction pipe 71 is detachably connected to the inlet end of the suction side merging pipe 27 via, for example, a maintenance on-off valve, for example, a ball valve 80, for example, by flange connection. . Thus, a directly connected water supply type pressure-increasing water supply device that is directly connected to a water main (not shown) is configured. In addition, what is necessary is just to remove the suction piping 71 for the water supply apparatus which is not a direct connection water supply type.
[0046]
A heater 81 for preventing freezing is attached in the vicinity of the pressure detector 72a placed in an environment that is most easily frozen, for example, on the side surface of the elbow pipe 72.
[0047]
A vertical outdoor water supply with a narrow depth dimension and a high height dimension as shown in FIGS. 1 to 4, in which the gantry 1 in which the various apparatuses are assembled and a pump cover 85 covering the apparatus are combined. Configure the device.
[0048]
Specifically, the pump cover 85 has a box shape in which the inner dimensions are slightly larger than the outer shape of the gantry 1 as viewed from the front, and the two surfaces of the back surface and the bottom surface are open. And this pump cover 85 is covering the stand 1 so that each apparatus may be covered from the front direction. Specifically, the pump cover 85 has an upper edge inner surface overlapping the top plate 4, a left and right edge inner surface overlapping the left and right side plates 5, and a lower peripheral edge inner surface being the skirt plate 7 and the pump cover 85. The region where various devices are located is almost sealed so as to overlap with the side plate 5 portion that follows the front plate 1. The pump cover 85 and the gantry 1 are placed between the eyebolts 86 (members used when suspending the entire water supply device) for suspending the device, which are inserted on both sides of the top plate 4 from both sides of the upper edge. It is fastened with a seal member interposed therebetween. Reference numeral 89a denotes a bolt hole for an eyebolt formed at the upper edge of the top plate 4 and the pump cover 85.
[0049]
As shown in FIGS. 3 and 4, the pump cover 85 is inclined in such a direction that the front wall 85 a facing the turbine pump 26 becomes narrower from the DC motor 24 as it goes upward from near the middle of the connecting pipe 40. In addition, due to the space restriction by the inclined portion 85b, a short circuit (a phenomenon in which the blown air from the suction port 29a is directly sucked into the blowout port 29b) hardly occurs on the front side of the DC motor 24. is doing. A sound absorbing material 87 is provided on the inner surface of the inclined portion 85b approaching the turbine pump 26 so as to effectively absorb noise from each portion of the turbine pump.
[0050]
In addition, the inner surface of the pump cover 85 has heat insulation so as to surround the suction pipe 71 including the backflow prevention device 70 from the same position as the upper end position of the skirt plate 7 or slightly above the upper position to an upper position. The sound absorbing material 88 is attached, and the lower part of the apparatus where the internal atmosphere is cooled is kept warm, and at the same time, the internal noise is not leaked from the lower end of the pump cover 85.
[0051]
In addition, a sound absorbing material 89 is attached to each part of the inner surface of the pump cover 85 to prevent noise from leaking from the pump cover 85 to the outside. Furthermore, a metal plate for preventing overturning, that is, a plate 90 having a bolt insertion hole 90a is attached to the upper rear surface of the back plate 3, and when the water supply device is installed, if the plate 90 is fastened to a wall surface of a building or the like, The installed water supply equipment is prevented from falling.
[0052]
In addition, a water leak check window 91 is provided below the front wall 85a of the pump cover 85 for visually checking the leak state of the backflow prevention device 70 from the outside. In addition, a window 92a for viewing various display units 21b of the control unit 21 from the outside and a window 92b for viewing the pump state are provided on the upper stage. The upper windows 92a and 92b also serve as a light source when the water leakage state is viewed from the window 91.
[0053]
When installing such a water supply device, the anchor plate 15 is fastened with an anchor bolt 93 at an outdoor or indoor installation location, and the fall prevention plate 90 is bolted to the wall of the building along the back of the gantry 1. After fixing the water supply device, the water pipe 94 separated from the water main pipe (not shown) is connected to the inlet of the suction pipe 71 using the through holes 9 and 12 of the skirt plate 7, for example, and the discharge side confluence pipe is also used. The 28 outlets may be connected to a water supply pipe 95 connected to a faucet (not shown).
[0054]
Here, the control panel 21 is connected to each device through cables (not shown) wired along the inner surface of the back plate 3.
[0055]
When the control panel 21 detects that one side (one unit) of the turbine pump 26 detects that the discharge pressure is lower than the target pressure from the pressure signal from the pressure detector 17 on the discharge side, the target pressure is kept constant. Is operated (constant pressure control). That is, the turbine pump 26 increases the water from the water pipe 94 sucked through the suction pipe 71 and the suction-side merging pipe 27 so as to become a constant pressure, and the increased water is connected to the connecting pipe 40 and the discharge-side merging pipe 28. , And supplied to the faucet through the water supply pipe 95.
[0056]
When the amount of water used decreases, the rotational speed (capacity) of the turbine pump 26 is reduced according to the flow rate signal of the flow rate detector 46. Further, when the amount of water used becomes equal to or less than the predetermined amount of water used, the operating turbine pump 26 is stopped, and the water supply by the accumulator 22 is started.
[0057]
During operation of the turbine pump 26, each part in the pump cover 85 is cooled by the cooling fan 29 of the DC motor 24. Specifically, the uppermost layer air in the pump cover 85 is sucked from the suction port 29a, and the air is blown out from the blower outlet 29b along the motor body of the DC motor 24. As a result, the blown air cools the DC motor 24 and flows to the pump unit 25 through which the water on the lower side passes, and also to the piping. At this time, the exhaust flow (hot air) whose temperature has risen due to the cooling of the DC motor 24 is cooled by exchanging heat by touching the outer wall surface of the pump unit 25 and the outer wall surface of the piping member that are cooled by the supplied water. The Then, the cooled exhaust stream is guided to each part in the pump cover 85 to cool each part. Due to the heat exchange in each part, the exhaust flow rises while the temperature rises and reaches the upper part in the pump cover 85. Then, the cycle of sucking again from the cooling fan 29 is repeated, and the inside of the pump cover 85 is always cooled by circulating cooling air.
[0058]
Further, when the water main pressure exceeds the target pressure during operation (during high water distribution), the water directed to the turbine pump 26 is bypassed (short-circuited) to the discharge-side merging pipe 28 through the bypass check valve 45. . The flow rate detector 46 between the check valve 45 and the pump suction port 30 detects a decrease in the amount of water (small amount of water) toward the turbine pump 26 and stops the operation of the turbine pump 26. As a result, the pressure water from the water main is directly led to the faucet without increasing the pressure in the water supply device.
[0059]
In such a water supply device, when assembling the accumulator 22, the turbine pump 26 having the suction side merging pipe 27 / the discharge side merging pipe 28, and the suction pipe 71 having the backflow prevention device 70 to the gantry 1, Since each device is assembled to the support members 50, 59, and 78 protruding in the front direction beyond the top plate 4 and the side plate 5 of the gantry 1, the assembly can be performed without being restricted by the top plate 4 or the side plate 5. That is, as shown by the symbol X in FIG. 7, the assembly work can be advanced using a wide open space around the support members 50, 59, and 78 without any obstacles as a work space. Therefore, the assembly work is easy. In addition, since the various devices are assembled to the vertically placed back plate 3, the occupied floor area is small as in the case of the conventional box structure, and the small occupied floor area and the ease of assembling work of the water pump device are facilitated. Can be satisfied. In addition, since the gantry 1 has a structure in which the left and right sides and the upper part are slightly overhanging forward, and the structure is such that the anchor plate 15 is self-supporting, the structure is simple, light weight, and low in manufacturing cost. is there.
[0060]
Further, a pump unit 23 in which a plurality of vertical turbine pumps 26 arranged in parallel with the suction merging pipe 27 and the discharge side merging pipe 28 is used, and among these, the suction side merging pipe 27 and the discharge side merging pipe 28 are provided. Since the support bases 48 and 49 are formed and mounted on the support member 50, the entire pump unit including the heavy multi-stage turbine pump unit 25 and the suction side merging pipe 27 arranged side by side in the depth direction are provided. Utilizing the distance from the discharge side merging pipe 28, it can be stably received, and the pump unit 26 can be assembled to the back plate 3 at a small number of support points, specifically, three points. The vertical pump and the suction side / discharge side piping can be reasonably assembled to the gantry 1.
[0061]
Further, not only the elastic members 53 and 54 are interposed between the support bases 48 and 49 and the support member 50, but also the vibration damping material 58 is provided on the inner surface of the back wall near the support member 50. 27. Vibration from the turbine pump 26 that is about to be transmitted from the discharge side junction pipe 28 to the back plate 3 is not only absorbed by the elastic members 53 and 54, but also vibration that is transmitted from the support member 50 to the back plate 3 is also controlled. Since it can suppress by the member 58, it can prevent effectively that the mount frame 1 vibrates with the vibration which the turbine pump 26 emits.
[0062]
In addition, since the plate 90 for preventing the fall is attached, even when the ground is shaken by an earthquake by fastening the plate 90 to the wall surface of the building along the back plate 3 when installing the water supply device, The water supply device can be prevented from falling, and the water supply device installed on site can be prevented from falling unnecessarily.
[0063]
Further, by adopting a structure in which the suction pipe 71 including the backflow prevention device 70 is mounted on the support member 78 via the elastic member 79, vibration that is transmitted from the backflow prevention device 70 to the gantry 1 is absorbed by the elastic member 79. Therefore, even if the direct water supply method is adopted, vibration transmitted to the gantry 1 can be reduced, and vibration of the gantry 1 due to the backflow prevention device 70 being attached can be prevented.
[0064]
In addition, by adopting a structure in which the box-shaped pump cover 85 is placed on the mount 1 from the front, various devices attached to the mount 1 are covered and shielded by the pump cover 85. It can be prevented from being exposed. At the same time, it can block the noise of the equipment from going outside. In other words, a low-noise outdoor water supply device that can withstand the effects of rain and wind can be realized. In addition, since the pump cover 85 is fixed to the gantry 1 with eyebolts 86 for suspending the apparatus, screws for attaching the pump cover 85 are not required separately, and the cost is low. In addition, since the pump cover 85 is structured to be removed from or attached to the front side of the gantry 1, even if the water supply device is installed in a place where there are obstacles on both sides in the width direction, it may be necessary during maintenance. The pump cover 85 can be easily attached and detached without being affected by obstacles.
[0065]
In addition, a skirt plate 7 that overlaps with the inner surface of the lower portion of the pump cover is formed in the lower portion of the back plate 3, and through holes 9 and 12 for connecting the piping to the outside are formed in the skirt plate 7, so that after the piping work is finished However, when performing maintenance on the internal equipment of the installed water supply device, the equipment that is easily assembled to the gantry 1 can be removed simply by removing the pump cover 85 without changing the pipe that is connected to the pump unit 23 and the suction pipe 71. And can be installed.
[0066]
Further, the suction port 29a of the cooling fan 29 attached to the fully closed motor is arranged at the upper part, the pipe is arranged at the lower side, the turbine pump 26 is assembled to the upper part of the frame, and the front wall 85a of the pump cover 85 facing the turbine pump 26 is provided. Since the space between the pump 26 and the pump 26 is narrowed, the exhaust flow (hot air) from the cooling fan 29 that has cooled the fully-closed motor is short-circuited to the fan suction port by the suppression provided by the inclined portion of the pump cover 85. It is possible to circulate in the pump cover 85 without forming a circuit flow, and to cool each part in the pump cover 85 sufficiently effectively without heat remaining in the upper part of the pump cover 85. it can.
[0067]
In addition, a sound absorbing material 87 is provided on the inner surface of the inclined front wall 85a and the inclined surface approaching the fully closed motor is utilized to absorb the noise generated from the fully closed motor. The noise from the excellent fully closed motor can be further reduced.
[0068]
Further, since the window 91 for viewing the backflow prevention device 70 is formed in the pump cover 85, the leakage state of the backflow prevention device 70 can be confirmed from the outside through the window 91 without opening the pump cover 85. In particular, the window 91 is on the lower side, but since the light enters from the window 92a for viewing the control panel 21 and the window 92b for viewing the motor state, it is not difficult to see.
[0069]
Further, since the antifreezing heater 81 is assembled in the vicinity of the pressure detector 72a for detecting the suction pressure, and the sound absorbing material 88 having heat insulation is attached to the inner surface portion of the pump cover 85 surrounding the backflow prevention device 70. Pressure detection that keeps the backflow prevention device 70 in the lower part of the device where the internal atmosphere is coolest with the heater 81 on the primary side of the backflow prevention device 70 with the heater 81 so that the water contact portion is thin and easy to freeze. The heater 72a can be kept warm, and the portion that is most likely to freeze while being soundproofed can be effectively kept warm by the heater 81.
[0070]
In addition, in one Embodiment mentioned above, although the direct water supply type water supply apparatus is mentioned as an example, it is not restricted to this, A water supply apparatus without a backflow prevention apparatus may be used.
[0071]
【The invention's effect】
As described above, according to the first aspect of the present invention, the water supply pump device can be assembled to the support member using the wide open space around the support member without any obstacles as the work space. The assembly work of the equipment is easy. Moreover, since the water supply pump device is installed on the vertical back plate, the floor area occupied can be reduced as in the conventional box structure.
[0072]
Therefore, both the small occupied floor area and the ease of assembling workability of the water supply pump device can be satisfied. In addition, since the gantry has a structure in which the left and right sides and the upper part slightly protrude forward, and the anchoring plate self-supports, the structure is simple, the weight is light, and the manufacturing cost is low.
[0073]
According to the second aspect of the present invention, in addition to the above effects, the vertical pump can be rationally supported by the back plate on the suction side pipe and the discharge side pipe with a small number of support points.
[0074]
According to the third aspect of the present invention, in addition to the above-described effects, there is an effect that it is possible to effectively prevent the gantry from vibrating due to vibrations generated by the vertical pump.
[0075]
According to invention of Claim 4, in addition to the said effect, there exists an effect that the water supply apparatus installed in the field can be prevented from falling over unnecessarily.
[0076]
According to the fifth aspect of the present invention, in addition to the above effect, there is an effect that vibration transmitted from the backflow prevention device constituting the direct water supply type water supply device to the gantry can be prevented.
[0077]
According to the sixth aspect of the invention, in addition to the above-described effects, there is an effect that a low-noise outdoor specification water supply device can be realized with a structure that can withstand the influence of rain and wind.
[0078]
According to the seventh aspect of the present invention, in addition to the above-described effects, the water pump device can be easily detached and attached by simply removing the pump cover even after the pipe construction. Play.
[0079]
According to the eighth aspect of the invention, in addition to the above effects, there is an effect that each part in the pump cover can be effectively cooled by a cooling fan built in the fully closed motor without stagnation of heat.
[0080]
According to the ninth aspect of the invention, in addition to the above-described effect, there is an effect that noise from the fully-closed motor can be effectively reduced.
[0081]
According to the invention described in claim 10, in addition to the above effect, there is an effect that the water leakage state of the backflow prevention device constituting the direct water supply type can be confirmed from the outside.
[0082]
According to the eleventh aspect of the invention, in addition to the above-described effect, there is an effect that it is possible to effectively insulate a portion of the pump cover that is most likely to freeze while soundproofing.
[Brief description of the drawings]
FIG. 1 is a front view of a water supply apparatus according to an embodiment of the present invention.
FIG. 2 is a front view of a cross section of a pump cover of the water supply device.
FIG. 3A is a side sectional view taken along line AA in FIG.
(B) is a sectional side view along BB in FIG.
4 is a side sectional view taken along the line CC in FIG. 1. FIG.
5 is a plan sectional view taken along the line DD in FIG. 1. FIG.
FIG. 6 is a view for explaining the structure of a suction side merging pipe and a discharge side merging pipe connected to a turbine pump.
FIG. 7 is an exploded perspective view for explaining the entire structure of the water supply pump.
[Explanation of symbols]
1 ... Stand
2 ... back wall
4, 5 ... Top plate, side plate (plate part)
7 ... Skirt board
9,12 ... through hole
15 ... Anchor plate
20 ... Water supply pump equipment
23 ... Vertical pump unit
24 ... Brushless DC motor (fully closed motor)
25 ... Multi-stage turbine pump section
27 ... Suction side merge pipe
28 ... discharge side confluence pipe
29 ... Cooling fan
29a ... Suction port
29b ... discharge port
48, 49 ... Support base
50, 58, 78 ... support members
53, 54, 79 ... elastic member
58 ... Damping material (damping member)
70 ... Backflow prevention device
71 ... Suction piping
81 ... Freezing prevention heater
85 ... Pump cover
86 ... Eyebolt
88 ... Sound absorbing material
90 ... Plate (Fall prevention metal fittings)
91 ... Window.

Claims

A back wall that has a small amount of a plate protruding in the front direction on both the left and right edges and the upper edge of the back board to satisfy the mechanical strength, and for anchors attached to the lower end of the back wall And a stand that can stand independently with the anchor plate down and the back plate back,
A plurality of support members attached to the back plate so as to protrude in the front direction beyond the overhang length of the plate portion at the edge of the back plate from the back plate;
A water supply apparatus comprising: a water supply pump device mounted on the frame and mounted on the plurality of support members.

The water supply pump device is connected to a plurality of electrically driven vertical pumps arranged in parallel, a suction side merging pipe connected to the suction port of each of these pumps, and a discharge port of each pump. Consists of a pump unit having a discharge side confluence pipe extending in the left-right direction,
The support unit is formed in each of the suction-side merging pipe and the discharge-side merging pipe, the support bases are placed on the support member, and the pump unit is assembled to the mount. Water supply apparatus of description.

The water supply device according to claim 2, wherein an elastic member is interposed between the support base and the support member, and a vibration damping member is provided on the inner surface of the back wall in the vicinity of the support member. .

The water supply device according to claim 1, wherein a metal fitting for preventing the fall is attached to the back plate.

The water supply pump device is configured to have a pipe assembled with a backflow prevention device on the suction side,
The water supply device according to claim 1, wherein a pipe including the backflow prevention device is placed on the support member via an elastic member.

The frame is covered with a box-shaped pump cover whose inner dimension is larger than the outer shape of the frame so as to cover the water supply pump device from the front direction, and the upper part of the pump cover suspends the entire water supply device. The water supply device according to claim 1, wherein the water supply device is fastened to a plate portion at an upper portion of the back plate.

The lower portion of the back plate has a U-shaped skirt plate that protrudes in the front direction from the left and right side plate portions and overlaps with the inner surface of the lower portion of the pump cover, and the skirt plate includes the outside and the water supply pump device. The water supply device according to claim 6, wherein a through-hole is formed for maintaining a gap between the two.

The feed water pump device is configured to have an electrically driven vertical pump having a fully closed motor with a built-in cooling fan that sucks in from above and blows out downward.
This vertical pump is assembled to the upper part of the pedestal with the support member so that the suction port of the cooling fan is arranged on the upper part and the pipe connected to the vertical pump is arranged on the lower side,
The water supply device according to claim 6, wherein a front wall of the pump cover facing the vertical pump is inclined so as to be narrowed from the vertical pump as it goes upward.

The water supply device according to claim 8, wherein a sound absorbing material is provided on an inner surface of the inclined front wall.

The water supply pump device is configured to have a pipe with a backflow prevention device assembled on the suction side,
The water supply device according to claim 6, wherein the pump cover has a window for checking water leakage of the backflow prevention device.

The water supply pump device has a backflow prevention device on the suction side, a pipe assembled with the support member at a lower portion of the back plate, a pressure detector assembled on the primary side of the backflow prevention device, and the pressure detector And a freezing prevention heater assembled in the vicinity of
The water supply device according to claim 6, wherein the pump cover is provided with a heat-absorbing sound absorbing material on an inner surface portion surrounding the backflow prevention device.