JPS6237279B2 - - Google Patents
Info
- Publication number
- JPS6237279B2 JPS6237279B2 JP53165895A JP16589578A JPS6237279B2 JP S6237279 B2 JPS6237279 B2 JP S6237279B2 JP 53165895 A JP53165895 A JP 53165895A JP 16589578 A JP16589578 A JP 16589578A JP S6237279 B2 JPS6237279 B2 JP S6237279B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- valve body
- inlet
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007788 liquid Substances 0.000 claims description 35
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 17
- 238000012856 packing Methods 0.000 description 16
- 239000012530 fluid Substances 0.000 description 14
- 239000008267 milk Substances 0.000 description 5
- 210000004080 milk Anatomy 0.000 description 5
- 235000013336 milk Nutrition 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
【発明の詳細な説明】
本発明は主として牛乳の如き食品を扱う機械ま
たはプラントに於て頻繁に牛乳などの流通系内を
定置洗浄する個所、例えば貯蔵タンク側に接続さ
れた出入口より牛乳等流通系側に接続された排出
口へ牛乳を流出させたり或は牛乳を注入口より上
記の出入口を通つて貯蔵タンクへ供給したりする
個所等に用いる二重シール弁機構に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention mainly applies to machines or plants that handle foods such as milk, where milk, etc. is distributed through an inlet/outlet connected to a storage tank, where the distribution system for milk, etc. is frequently cleaned in place. This invention relates to a double seal valve mechanism used in locations such as where milk flows out to an outlet connected to the system side, or where milk is supplied from an inlet to a storage tank through the above-mentioned inlet/outlet.
本件特許出願人は曽てこの種の二重シール弁機
構として特開昭49―65518号公報によつて開示さ
れている形式のものを開発した。 The applicant of the present patent has developed a double seal valve mechanism of this type as disclosed in Japanese Patent Application Laid-Open No. 49-65518.
因みにこの二重シール弁機構を第３図に依拠し
て説明すると、図中１は弁ボツクス、２は処理液
(A)の弁ポート、３，３′は相互に連通する処理液
(B)の弁ポート、４，４′は弁シート、５，５′は弁
ボデイ、６は同弁ボデイ５に取付けたパツキン
グ、７，７′は同じく弁ボデイ５′に取付けたパツ
キング、８はロツド、９は弁スプリング、１０は
シール用流体の入口、１１は同流体の導溝、１２
は同流体の封入部、１３は同流体の遮断するパツ
キングであつて、即ち叙上に於て弁閉時（図面の
右半分参照）には、処理液(A)を弁シート４′とパ
ツキング６との密接により、処理液(B)を弁シート
４′とパツキング７，７′との密接により夫々止め
ると共にシール用液体の封入部１２に適宜のシー
ル用流体を入口１０及び導溝１１を介して（同図
点線矢印で示す）送入することによつて処理液(A)
と(B)を完全に遮断し、また、弁開時（図面の左半
分参照）には弁シート４，４′とパツキング６，
７とを離し且つパツキング１３をして流体の封入
部１２を閉口させることによつて弁ポート２，
３，３′を導通状態と為すようにしたものであ
る。 Incidentally, this double seal valve mechanism will be explained with reference to Fig. 3. In the figure, 1 is the valve box, and 2 is the processing liquid.
Valve ports 3 and 3' in (A) are mutually communicating processing liquids.
Valve ports in (B), 4 and 4' are valve seats, 5 and 5' are valve bodies, 6 is packing attached to valve body 5, 7 and 7' are packing attached to valve body 5', and 8 is a rod, 9 is a valve spring, 10 is an inlet for sealing fluid, 11 is a guide groove for the same fluid, 12
13 is a sealing part for the same fluid, and 13 is a packing that shuts off the same fluid. In other words, when the valve is closed (see the right half of the drawing), the processing liquid (A) is packed with the valve seat 4'. 6, the processing liquid (B) is stopped by the close contact between the valve seat 4' and the packings 7 and 7', and an appropriate sealing fluid is supplied to the sealing liquid sealing part 12 through the inlet 10 and the guide groove 11. By feeding the processing liquid (A) through (indicated by the dotted line arrow in the same figure)
and (B), and when the valve is opened (see the left half of the drawing), the valve seats 4, 4' and packing 6,
7 and packing 13 to close the fluid sealing part 12, the valve port 2,
3 and 3' are brought into conduction.
従つて、この弁装置に於ては処理液(A)がパツキ
ング６の外側に、または処理液(B)がパツキング７
の外側に漏洩することがあつたとしてもこれがシ
ール用液体に混入するのみであつてライン内での
処理液(A)と(B)の混合を回避することができるもの
であるが、例えば処理液(A)がパツキング６の外側
に漏出してシール用液体に混入した状態で弁を開
くとこの混合液のうちシール用流体の封入部１２
内に溜つていた分が弁シート４と弁ボデイ５との
間より弁ポート２内に流入して同部の液に混入し
てしまう欠点があり、またこの二重シール弁機構
に於てはその開弁時に弁ボデイ５，５′間のシー
ル用流体のパツキング３による閉塞部が弁ケース
内に向つて保持されるので、同部に於てパツキン
グ３に何等かのトラブルが生じて漏液が発生する
とこのシール用流体が弁ボツクス１内に漏出して
同部の液に混入するに至る虞れなど無しとしない
危険があつた。 Therefore, in this valve device, the processing liquid (A) is placed outside the packing 6, or the processing liquid (B) is placed outside the packing 7.
Even if leakage occurs to the outside of the sealing liquid, it will only mix with the sealing liquid and mixing of processing liquids (A) and (B) within the line can be avoided. When the valve is opened with the liquid (A) leaking to the outside of the packing 6 and mixed into the sealing liquid, the sealed portion 12 of the sealing fluid of this mixed liquid is opened.
This double seal valve mechanism has the drawback that the liquid that has accumulated inside the valve flows into the valve port 2 from between the valve seat 4 and the valve body 5 and mixes with the liquid in the same area. When the valve is opened, the part blocked by the packing 3 of the sealing fluid between the valve bodies 5 and 5' is held toward the inside of the valve case, so there is no possibility of any trouble occurring in the packing 3 in this part and causing a leak. When liquid is generated, there is a risk that this sealing fluid may leak into the valve box 1 and mix with the liquid in the same area.
本発明はこのような欠陥を除去することを目的
とするものであつて、その要旨とするところは側
面に注入口および排出口を底面に出入口を夫々設
けた弁箱の当該出入口の口縁の内面に第１弁座
を、また同じく口縁の外面に第３弁座を夫々設け
ると共に同第１弁座に弁棒の作動により嵌合して
出入口を閉止する第１弁体を装入し、更に弁箱に
於て出入口の外側にシリンダーを設けこのシリン
ダーの先端に出入口管を連結すると共に当該出入
口管の内端に出入口に向つて伸縮する短小管を気
密に連結し、この短小管の外周にシリンダーの内
周面に気密に摺接するフランジを設けて同フラン
ジに短小管を出入口に向つて常に弾発する発条を
係装すると共に短小管の先端に上記の第１弁体が
嵌合する第２弁座及び上記の第３弁座に嵌合する
第２弁体とを、第１弁体が第１弁座および第２弁
座に嵌合した時に第２弁体が第３弁座より離れ、
また第１弁体が第１弁座および第２弁座より離れ
た時に第２弁体が上記の発条の作用により第３弁
座に嵌合するようにし夫々設け、シリンダーの周
壁に第２弁体と第３弁座との間から漏れた漏液の
排棄口を開設したことにある。 The purpose of the present invention is to eliminate such defects, and the gist of the present invention is to provide a valve box with an inlet and an outlet on the side, and an outlet on the bottom of the valve box. A first valve seat is provided on the inner surface, and a third valve seat is provided on the outer surface of the mouth rim, and a first valve body is inserted into the first valve seat to close the inlet/outlet by fitting into the first valve seat by the operation of the valve stem. Furthermore, a cylinder is provided outside the inlet/outlet in the valve box, an inlet/outlet pipe is connected to the tip of this cylinder, and a short small tube that extends and contracts toward the inlet/outlet is connected to the inner end of the inlet/outlet pipe in an airtight manner. A flange is provided on the outer periphery that slides in airtight contact with the inner circumferential surface of the cylinder, and a spring is attached to the flange to constantly spring the short small tube toward the entrance and exit, and the first valve body is fitted to the tip of the short small tube. a second valve seat and a second valve body that fits into the third valve seat, and when the first valve body fits into the first valve seat and the second valve seat, the second valve body fits into the third valve seat. further away,
Further, when the first valve body is separated from the first valve seat and the second valve seat, the second valve body is provided so that it fits into the third valve seat by the action of the spring, and the second valve body is provided on the peripheral wall of the cylinder. The reason is that a drain port was created for liquid leaking from between the valve body and the third valve seat.
以下、本発明の実施例を図面に依拠して説明す
るに、
側面に注入口１および排出口２を底面に出入口
３を夫々設けた弁箱４を構成し、この弁箱４に於
出入口３の口縁の内面に第１弁座５を、またこの
出入口３の口縁の外面に第３弁座２０を夫々設け
ると共に同第１弁座５に弁棒６の作動により嵌合
して出入口３を閉止するシールリング８，９付き
の第１弁体７を弁箱４内に弁蓋１０の開閉により
装入し、更に弁箱４に於て出入口３の外側にシリ
ンダー１１を設けこのシリンダー１１の先端に出
入口管１２をクランプ１３により連結すると共に
該当該出入口管１２の内端に出入口３に向つて伸
縮する短小管１４をＯリング１５により気密に連
結し、この短小管１４の外周にシリンダー１１の
内周面にＯリング１６により気密に摺擦するフラ
ンジ１７を設けて同フランジ１７に短小管１４を
出入口に向つて常に弾発する発条１８を係装する
と共に短小管１４の先端に上記の第１弁体７が嵌
合する第２弁座１９と出入口３の口縁の外面に設
けた前記の第３弁座２０に嵌合するシールリング
２１付きの第２弁体２２とを設け、第１弁体７が
第１弁座５および第２弁座１９に嵌合した時に第
２弁体２２が第３弁座２０より離れ、また第１弁
体７が第１弁座５および第２弁座１９より離れた
時に第２弁体２２が上記の発条１８の作用により
第３弁座２０に嵌合するようにすると共にシリン
ダー１１の周壁に第２弁体２２と第３弁座２０と
の間を介して漏れた漏液の排棄口２３と短小管１
４の作動用の空気移動孔２４とを開設しものであ
る。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.A valve box 4 is provided with an inlet 1 and an outlet 2 on the side, and an inlet/outlet 3 on the bottom. A first valve seat 5 is provided on the inner surface of the rim of the opening 3, and a third valve seat 20 is provided on the outer surface of the rim of the opening 3, and the third valve seat 20 is fitted into the first valve seat 5 by the operation of the valve stem 6. A first valve body 7 with seal rings 8 and 9 for closing the valve 3 is inserted into the valve box 4 by opening and closing the valve cover 10, and a cylinder 11 is provided outside the inlet/outlet 3 in the valve box 4, and this cylinder An inlet/outlet pipe 12 is connected to the tip of the inlet/outlet pipe 11 with a clamp 13, and a short small tube 14 that extends and contracts toward the inlet/outlet 3 is airtightly connected to the inner end of the corresponding inlet/outlet pipe 12 with an O-ring 15. A flange 17 is provided on the inner circumferential surface of the cylinder 11, which is rubbed airtight by an O-ring 16, and a spring 18 is attached to the flange 17, which always springs the short tube 14 toward the entrance and exit. A second valve seat 19 with which the first valve body 7 fits and a second valve body 22 with a seal ring 21 which fits with the third valve seat 20 provided on the outer surface of the mouth edge of the entrance/exit port 3 are provided. , when the first valve body 7 is fitted to the first valve seat 5 and the second valve seat 19, the second valve body 22 is separated from the third valve seat 20, and the first valve body 7 is fitted to the first valve seat 5 and the second valve seat 19. When the second valve body 22 is separated from the second valve seat 19, the second valve body 22 is fitted into the third valve seat 20 by the action of the spring 18, and the second valve body 22 and the third valve seat are connected to the peripheral wall of the cylinder 11. 20 and the short small pipe 1
4 air movement holes 24 for operation are provided.
即ち、叙上に於て第１弁体７を以て弁箱４の底
面の出入口３を閉止することによつて弁箱４側の
液を出入口管１２側の液が遮ぎられて両液の混合
が阻止されるのは勿論であるが、第１弁体７の閉
止に際して同第１弁体７と第１弁座５のシールリ
ング８との間に例えば何らかの異物等が挾入する
などして同部を完全に閉じることができない場合
が生じても、第１弁代と第２弁座１９が発条１８
の作用により嵌合し且つ第２弁体２２が第３弁座
２０より離れた状態になるため上記の第１弁体７
の不完全閉止により漏れた液は排棄口２３を経て
外方に排棄されるのでこの漏出液が出入口管１２
側の液に混入することなく、また第１弁体７を開
いて液を通す場合には第２弁体２２が上記の発条
１８の作用により第３弁座２０に嵌合するので流
通液が排棄口２３より漏れることはない。 That is, in the above description, by closing the inlet/outlet 3 on the bottom of the valve box 4 with the first valve body 7, the liquid on the valve box 4 side is blocked from the liquid on the inlet/outlet pipe 12 side, and the two liquids are mixed. Of course, this may be prevented, but for example, if some foreign object is inserted between the first valve body 7 and the seal ring 8 of the first valve seat 5 when the first valve body 7 is closed, Even if the same part cannot be completely closed, the first valve cover and the second valve seat 19
The above-mentioned first valve body 7 is fitted and the second valve body 22 is separated from the third valve seat 20 by the action of
The liquid that leaks due to the incomplete closure of
When the first valve body 7 is opened to allow the liquid to pass through, the second valve body 22 is fitted into the third valve seat 20 by the action of the spring 18, so that the flowing liquid is not mixed with the liquid on the side. There is no leakage from the exhaust port 23.
そして、特に本発明に於ては、前記の公報記載
のもののような弁ボデイ５，５′間の導溝にシー
ル用流体を導出させる機構を避けたので、閉弁の
際に処理液の漏出があつてもこの漏出液がシール
用流体を混合しその前記の封入部内の溜止分が洗
浄完了後の開弁操作時に弁箱底面の出入口内に流
出して同部の処理液に混入するようなことが全く
なく、また本発明に於てはその開弁時に前記の公
報記載のもののように弁ボデイ５，５′間のシー
ル用流体のパツキング１３による閉塞口が弁箱内
に向つて保持されることがないので、このパツキ
ング１３に何等かのトラブルが生じて漏液が発生
してもシール用流体が弁箱内に漏出して同部の液
に混入するようなことも全くないものであつて、
これらによつて本発明の前記の目的を確実に達成
することができる効果がある。 In particular, the present invention avoids the mechanism described in the above-mentioned publication that directs the sealing fluid into the guide groove between the valve bodies 5 and 5', so that leakage of the processing liquid when the valve is closed is avoided. Even if there is, this leaked liquid mixes with the sealing fluid, and when the valve is opened after cleaning is completed, the leaked liquid mixes with the sealing fluid, and when the valve is opened after cleaning is completed, it flows out into the inlet/outlet on the bottom of the valve box and mixes with the processing liquid in the same part. This does not occur at all, and in the present invention, when the valve is opened, the sealing fluid packing 13 between the valve bodies 5 and 5' faces toward the inside of the valve box, as in the case described in the above-mentioned publication. Since it is not retained, even if some trouble occurs in this packing 13 and liquid leaks, there is no possibility that the sealing fluid will leak into the valve box and mix with the liquid in the same part. It is a thing,
These have the effect of reliably achieving the above-mentioned object of the present invention.
図は本発明二重シール弁機構の実施例を示すも
のであつて、第１図は第１弁体の閉じ状態を示す
断面図、第２図は同じく第１弁体の開き状態を示
す断面図、第３図は従来例を示す断面図である。
１…注入口、２…排出口、３…出入口、４…弁
箱、５…第１弁座、６…弁棒、７…第１弁体、
８，９…シールリング、１０…弁蓋、１１…シリ
ンダー、１２…出入口管、１３…クランプ、１４
…短小管、１５…Ｏリング、１６…Ｏリング、１
７…フランジ、１８…発条、１９…第２弁座、２
０…第３弁座、２１…シールリング、２２…第２
弁体、２３…排棄口、２４…空気移動孔、１…弁
ボツクス、２…処理液(A)の弁ポート、３，３′…
処理液(B)の弁ポート、４，４′…弁シート、５，
５′…弁ボデイ、６…パツキング、７，７′…パツ
キング、８…弁ロツド、９…弁スプリング、１０
…入口、１１…導溝、１２…封入部、１３…パツ
キング。
The figures show an embodiment of the double seal valve mechanism of the present invention, in which FIG. 1 is a cross-sectional view showing the first valve body in the closed state, and FIG. 2 is a cross-sectional view showing the first valve body in the open state. 3 are sectional views showing a conventional example. 1... Inlet, 2... Discharge port, 3... Inlet/outlet, 4... Valve box, 5... First valve seat, 6... Valve rod, 7... First valve body,
8, 9... Seal ring, 10... Valve lid, 11... Cylinder, 12... Inlet/outlet pipe, 13... Clamp, 14
...Short tube, 15...O ring, 16...O ring, 1
7...Flange, 18...Spring, 19...Second valve seat, 2
0...Third valve seat, 21...Seal ring, 22...Second
Valve body, 23...Discharge port, 24...Air movement hole, 1...Valve box, 2...Valve port for processing liquid (A), 3, 3'...
Processing liquid (B) valve port, 4, 4'...valve seat, 5,
5'... Valve body, 6... Packing, 7, 7'... Packing, 8... Valve rod, 9... Valve spring, 10
...Inlet, 11...Guiding groove, 12...Enclosing part, 13...Packing.
Claims (1)
夫々設けた弁箱の当該出入口の口縁の内面に第１
弁座を、また同じく口縁の外面に第３弁座を夫々
設けると共に同第１弁座に弁棒の作動により嵌合
して出入口を閉止する第１弁体を装入し、更に弁
箱に於て出入口の外側にシリンダーを設けこのシ
リンダーの先端に出入口管を連結すると共に当該
出入口管の内端に出入口に向つて伸縮する短小管
を気密に連結し、この短小管の外周にシリンダー
の内周面に気密に摺接するフランジを設けて同フ
ランジに短小管を出入口に向つて常に弾発する発
条を係装すると共に短小管の先端に上記の第１弁
体が嵌合する第２弁座及び上記の第３弁座に嵌合
する第２弁体とを、第１弁体が第１弁座および第
２弁座に嵌合した時に第２弁体が第３弁座より離
れ、また第１弁体が第１弁座および第２弁座より
離れた時に第２弁体が上記の発条の作用により第
３弁座に嵌合するようにして夫々設け、シリンダ
ーの周壁に第２弁体と第３弁座との間から漏れた
漏液の排棄口を開設したことを特徴とする二重シ
ール弁機構。1. A valve box with an inlet and an outlet on the side and an outlet on the bottom.
A third valve seat is provided on the outer surface of the mouth rim, and a first valve body is inserted into the first valve seat to close the inlet/outlet by fitting into the first valve seat by the operation of the valve stem, and the valve body is further fitted with a third valve seat. A cylinder is provided outside the entrance and exit, and an entrance and exit pipe is connected to the tip of this cylinder, and a short tube that extends and contracts toward the entrance and exit is connected airtight to the inner end of the entrance and exit pipe, and a cylinder is attached to the outer periphery of this short tube. A second valve seat is provided with a flange that slides in airtight contact with the inner circumferential surface, and a spring is attached to the flange to constantly spring the short small tube toward the inlet/outlet, and the first valve body is fitted to the tip of the short small tube. and a second valve body that fits into the third valve seat, such that when the first valve body fits into the first valve seat and the second valve seat, the second valve body separates from the third valve seat, and The second valve body is provided in such a way that when the first valve body is separated from the first valve seat and the second valve seat, the second valve body fits into the third valve seat by the action of the spring, and the second valve body is attached to the peripheral wall of the cylinder. A double seal valve mechanism characterized by having a discharge port for liquid leaking from between the body and the third valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16589578A JPS5594064A (en) | 1978-12-29 | 1978-12-29 | Double seal valve mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16589578A JPS5594064A (en) | 1978-12-29 | 1978-12-29 | Double seal valve mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5594064A JPS5594064A (en) | 1980-07-17 |
| JPS6237279B2 true JPS6237279B2 (en) | 1987-08-11 |
Family
ID=15821009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16589578A Granted JPS5594064A (en) | 1978-12-29 | 1978-12-29 | Double seal valve mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5594064A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002012766A1 (en) * | 2000-08-09 | 2002-02-14 | Kabushiki Kaisha Yokota Seisakusho | Valve device and pipeline system |
| EP2140327B1 (en) | 2007-04-20 | 2014-09-10 | Fisher Controls International LLC | Secondary seat for gas regulator |
| JP5122234B2 (en) * | 2007-10-12 | 2013-01-16 | 岩井機械工業株式会社 | Fluid pipe closing structure |
| CN105221758A (en) * | 2015-11-03 | 2016-01-06 | 天津百利展发集团有限公司 | A kind of double-valve-seat self sealing structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843635U (en) * | 1971-09-23 | 1973-06-06 | ||
| JPS4965518A (en) * | 1972-10-28 | 1974-06-25 |
-
1978
- 1978-12-29 JP JP16589578A patent/JPS5594064A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843635U (en) * | 1971-09-23 | 1973-06-06 | ||
| JPS4965518A (en) * | 1972-10-28 | 1974-06-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5594064A (en) | 1980-07-17 |
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