CN203743827U - Charged intelligent gas supply device of power SF6 transformer - Google Patents
Charged intelligent gas supply device of power SF6 transformer Download PDFInfo
- Publication number
- CN203743827U CN203743827U CN201420054147.4U CN201420054147U CN203743827U CN 203743827 U CN203743827 U CN 203743827U CN 201420054147 U CN201420054147 U CN 201420054147U CN 203743827 U CN203743827 U CN 203743827U
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- tonifying
- transformer
- valve
- pressure
- electric power
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- 238000007599 discharging Methods 0.000 claims description 15
- 238000005273 aeration Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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Abstract
The utility model relates to a charged intelligent gas supply device of a power SF6 transformer. The device comprises a high-pressure gas cylinder, a three-way connecting pipe and a gas supply connecting pipe, wherein SF6 gas is stored in the high-pressure gas cylinder; a pressure reducing valve is arranged at an outlet of the high-pressure gas cylinder; a main pipe of the three-way connecting pipe is connected with the pressure reducing valve via a gas supply solenoid valve; a pressure sensor, an electric contact pressure gauge and a safety valve are installed on one branch pipe of the three-way connecting pipe, the branch pipe is connected with the gas supply connecting pipe via a gas supply valve, and an operating power SF6 transformer inflation/deflation valve needing gas supply is connected to the other end of the gas supply connecting pipe; a bypass valve is installed on the other branch pipe of the three-way connecting pipe; the gas supply solenoid valve and the pressure sensor are electrically connected with a control module; the gas supply solenoid valve is also electrically connected with the electric contact pressure gauge; the electric contact pressure gauge is also electrically connected with an alarm. The device avoids the defects of traditional gas supply devices and achieves safe, reliable, efficient, precise, economical and environment-friendly charged gas supply operation.
Description
Technical field
The utility model relates to a kind of electric power SF
6the charged intelligent making-up air device of transformer.
Background technique
Operating electric power SF
6transformer, as its inner SF
6when gas pressure reduces to a certain extent, can be because insulation be discharged not or when main transformer is inner, arc extinguishing ability not serious accident occurs, the serious consequence that even causes main transformer to explode, therefore operating electric power SF when Arc Discharge fault
6transformer is as its inner SF
6gas pressure should carry out tonifying Qi when not enough in time.Electric power SF
6transformer tradition tonifying Qi mode, mostly by artificial aerating valve hand-manipulated, cannot be according to SF
6the SF of transformer inside
6the gas pressure tonifying Qi of steadily releiving, may be because staff neglects in tonifying Qi process, and tonifying Qi pressure is too large, causes SF in charging operation
6gas shock in power transformer, and cause electric power SF
6the accident of transformer, even the danger of blast, has also avoided, as tonifying Qi bleed pressure deficiency, causing and pouring out gas, and in main transformer, insulation not, can cause electric power SF in charging operation equally
6the accident of transformer, the even danger of blast.Owing to being manual control, there is sometimes aerating excessive, then again by unnecessary SF
6the direct emptying atmosphere of gas, causes waste and environmental pollution (electric power SF
6the expensive discharge waste of gas price, and emptying meeting damages the ozone layer).
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of charged intelligent making-up air device of electric power SF6 transformer that can realize charged online tonifying Qi is provided.
To achieve these goals, the technical solution of the utility model is: a kind of electric power SF
6the charged intelligent making-up air device of transformer, comprises and has SF
6gas cylinder, three connecting pipes and the tonifying Qi connecting leg of gas, the outlet of described gas cylinder is provided with reduction valve, the supervisor of described three connecting pipes connects reduction valve by tonifying Qi solenoid valve, on one branched pipe of described three connecting pipes, pressure transducer, pressure gauge with electric contact and safety valve are installed, and connecting tonifying Qi connecting leg by aeration valve, the described tonifying Qi connecting leg the other end connects the operating electric power SF that needs tonifying Qi
6transformer Air filling and discharging valves, on another branched pipe of described three connecting pipes, bypass valve is installed, described tonifying Qi solenoid valve and pressure transducer are electrically connected at control module, and described tonifying Qi solenoid valve is also electrically connected at pressure gauge with electric contact, and described pressure gauge with electric contact is also electrically connected with alarm.
In above-mentioned technological scheme, the required tonifying Qi electric power SF of the online detection of described pressure transducer
6real-time gas pressure value in transformer, and be converted into digital signal transfers to control module; The digital signal that described control module is come according to pressure transducer transmission is opened tonifying Qi solenoid valve automatically, and controls the open degree of tonifying Qi solenoid valve.
In above-mentioned technological scheme, described pressure gauge with electric contact is closed tonifying Qi solenoid valve automatically according to its predefined tonifying Qi limiting pressure value.
In above-mentioned technological scheme, described pressure gauge with electric contact is connected alarm automatically according to its predefined tonifying Qi limiting pressure value.
In above-mentioned technological scheme, described safety valve is automatically opened in the time that air compensating system internal pressure exceedes predefined tonifying Qi limiting pressure value, and described safety valve cuts out below air compensating system internal pressure drops to predefined tonifying Qi limiting pressure value time automatically.
In above-mentioned technological scheme, the using method of the charged intelligent making-up air device of this electric power SF6 transformer, carries out: (1) connects the joint of tonifying Qi connecting leg the operating electric power SF that needs tonifying Qi according to the following steps
6the interface of transformer Air filling and discharging valves, now aeration valve is closed; In the time that the two closely connects above, the joint of described tonifying Qi connecting leg backs down electric power SF
6transformer Air filling and discharging valves makes its unlatching; (2) open aeration valve by predetermined compared with minor valve aperture, make the SF in electric power SF6 transformer
6gas pours making-up air device, opens bypass valve, washing away by remaining air, moisture in making-up air device; Work as SF
6after gas bleed making-up air device, close bypass valve, prepare to carry out charged tonifying Qi; (3) standard-sized sheet aeration valve, the main valve of unlatching gas cylinder, opens and regulates reduction valve to predetermined force value, opens control module; Detect gas pressure in electric power SF6 transformer by pressure transducer, and detected real-time pressure value is converted to digital signal is sent to control module; Described control module is opened tonifying Qi solenoid valve according to predefined pressure difference, and dynamically regulates its open degree with the steady tonifying Qi of releiving; When tonifying Qi is when the predefined tonifying Qi limiting pressure value, described pressure gauge with electric contact is closed tonifying Qi solenoid valve automatically, connects alarm equipment alarm simultaneously, remind staff tonifying Qi to rated pressure value; Close the main valve of gas cylinder, close reduction valve, close aeration valve, exit tonifying Qi connecting leg and electric power SF
6the joint that transformer Air filling and discharging valves connects, electric power SF
6transformer Air filling and discharging valves is closed automatically, opens after bypass valve pressure release tonifying Qi end-of-job.
Compared with prior art, the utlity model has following beneficial effect: the utility model has been avoided the deficiency of traditional making-up air device, realized the charged tonifying Qi work of safe, reliable, efficient, accurate, saving, environmental protection, no matter from ensureing electric power SF
6transformer carries out aspect the safety reliability of tonifying Qi under charging operation situation, or from saving and all there is huge advantage environmental protection aspect.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Brief description of the drawings
Fig. 1 is the utility model embodiment's use phase diagram.
Fig. 2 is the utility model embodiment's intelligent automatic control functional-block diagram.
Fig. 3 is the control circuit figure of pressure gauge with electric contact design of pressure.
Fig. 4 is the main line map interlinking of pressure gauge with electric contact control tonifying Qi solenoid valve, alarm.
In figure: 1-gas cylinder, 2-reduction valve, 3-tonifying Qi solenoid valve, 4-tri-connecting pipes, 5-bypass valve, 6-alarm, 7-safety valve, 8-pressure gauge with electric contact, 9-pressure transducer, 10-aeration valve, 11-tonifying Qi connecting leg, 12-electric power SF
6transformer Air filling and discharging valves, 13-electric power SF
6transformer; DJ1-pressure gauge with electric contact pressure setting pressure limiting relay, K1-switch, C1-tonifying Qi solenoid valve, C2-alarm, N-ground connection, ∽ 220V-Ac 220V.
Embodiment
As shown in Fig. 1 ~ 4, a kind of electric power SF
6the charged intelligent making-up air device of transformer, comprise the gas cylinder 1 that has SF6 gas, three connecting pipes 4 and tonifying Qi connecting leg 11, the outlet of described gas cylinder 1 is provided with reduction valve 2, the supervisor of described three connecting pipes 4 connects reduction valve 2 by tonifying Qi solenoid valve 3, on one branched pipe of described three connecting pipes 4, pressure transducer 9 is installed, pressure gauge with electric contact 8 and safety valve 7, and connect tonifying Qi connecting leg 11 by aeration valve 10, described tonifying Qi connecting leg 11 the other ends connect the operating electric power SF6 transformer Air filling and discharging valves 12 that needs tonifying Qi, on another branched pipe of described three connecting pipes 4, bypass valve 5 is installed, described tonifying Qi solenoid valve 3 and pressure transducer 9 are electrically connected at control module, described tonifying Qi solenoid valve 3 is also electrically connected at pressure gauge with electric contact 8, described pressure gauge with electric contact 8 is also electrically connected with alarm 6.
In the present embodiment, described control module can be carried out intelligent control tonifying Qi; Described pressure transducer 9 can detect required tonifying Qi electric power SF online
6real-time gas pressure value in transformer 13, and be converted into digital signal transfers to control module; Described control module can be transmitted the digital signal of coming according to pressure transducer 9 and automatically open tonifying Qi solenoid valve 3, and control the open degree of tonifying Qi solenoid valve 3, when pressure reduction is large, tonifying Qi solenoid valve 3 is opened large, vice versa, all the time releiving a little more than the constant pressure difference of electric power SF6 transformer 13 internal system, steadily tonifying Qi, avoided traditional making-up air device may be because tonifying Qi pressure is too large in tonifying Qi process, and caused electric power SF in charging operation
6the interior gas shock of transformer 13, and cause electric power SF
6transformer 13 accidents, even the danger of blast, has also avoided, as tonifying Qi bleed pressure deficiency, causing and pouring out gas, can cause equally electric power SF in charging operation
6the accident of transformer 13, even blast danger, strong guarantee electric power SF
6the safe tonifying Qi work of transformer 13 under charging operation situation.
In the present embodiment, described pressure gauge with electric contact 8 can be closed tonifying Qi solenoid valve 3 automatically according to its predefined tonifying Qi limiting pressure value, and automatically connects alarm 6 and report to the police, and described alarm 6 also can be arranged on a branched pipe of three connecting pipes 4; In the time that making-up air device pressure reaches this setup pressure value, pressure gauge with electric contact 8 moves, and automatically closes tonifying Qi solenoid valve 3 and connects alarm 6 and send buzzing chimes of doom, notify staff tonifying Qi to rated pressure value.
In the present embodiment, in the time that air compensating system internal pressure exceedes predefined tonifying Qi limiting pressure value, and now pressure transducer 9, pressure gauge with electric contact 8 break down, or dead electricity is when uncontrollable, described safety valve 7 can be opened delivery system pressure automatically, pressure release, to ensure the safety of system, is played last pipe protection effect; In the time that air compensating system pressure drop arrives below setting value, described safety valve 7 cuts out automatically.Described bypass valve 5 is taken over the use of rear venting as gas bleed interface, connecting leg and bypass.
In the present embodiment, this electric power SF
6the using method of the charged intelligent making-up air device of transformer, carry out according to the following steps::
(1) joint of tonifying Qi connecting leg 11 is connected to the operating electric power SF that needs tonifying Qi
6the interface of transformer Air filling and discharging valves 12, now the aeration valve 10 on tonifying Qi connecting leg 11 is closed; As joint and the electric power SF of tonifying Qi connecting leg 11
6when the interface of transformer Air filling and discharging valves 12 closely connects above, back down electric power SF
6transformer Air filling and discharging valves 12 makes its unlatching;
(2) by predetermined, compared with minor valve aperture, a little opens the aeration valve 10 on tonifying Qi connecting leg 11, makes electric power SF
6sF in transformer 13
6gas pours making-up air device, opens the bypass valve 5 on three connecting pipes 4, washing away by remaining air, moisture in making-up air device; Work as SF
6after gas bleed making-up air device, close the bypass valve 5 on three connecting pipes 4, prepare to carry out charged tonifying Qi;
(3) aeration valve 10 on standard-sized sheet tonifying Qi connecting leg 11, opens the main valve of gas cylinder 1, opens and regulate reduction valve 2 to 1MPa(or according to electric power SF
6the interior filled rated working pressure of transformer 13 is determined reduction valve 2 pressure), open control module; Detect electric power SF by pressure transducer 9
6gas pressure in transformer 13 systems, and detected real-time pressure value is converted to digital signal is sent to control module; Described control module is opened the tonifying Qi solenoid valve 3 on three connecting pipes 4 according to predefined pressure difference, and dynamically regulates its open degree, with all the time a little more than electric power SF
6the steady tonifying Qi of releiving of the interior gas pressure of transformer 13; When tonifying Qi is when the predefined tonifying Qi limiting pressure value, described pressure gauge with electric contact 8 is closed tonifying Qi solenoid valve 3 automatically, connects alarm 6 simultaneously and reports to the police, remind staff tonifying Qi to rated pressure value; Close the main valve of gas cylinder 1, close reduction valve 2, close aeration valve 10, exit tonifying Qi connecting leg 11 and electric power SF
6the joint that transformer Air filling and discharging valves 12 connects, electric power SF
6transformer Air filling and discharging valves 12 is closed automatically, opens after bypass valve 5 pressure releases tonifying Qi end-of-job.
In the present embodiment, in step (1), this electric power SF
6the charged intelligent making-up air device of transformer can Assembling, when assembling, first the joint of tonifying Qi connecting leg 11 is connected to electric power SF
6the interface of transformer Air filling and discharging valves 12, then by a branched pipe interface of the aeration valve of tonifying Qi connecting leg 11 the other ends 10 interface connecting tee connecting legs 4, finally supervisor's interface of three connecting pipes 4 is connected on reduction valve 2 interfaces of high-pressure cylinder outlet by tonifying Qi solenoid valve 3.
In the present embodiment, in step (3), this electric power SF
6the charged intelligent making-up air device of transformer can field stripping so that collection, at tonifying Qi connecting leg 11 and electric power SF
6transformer Air filling and discharging valves 12 departs from after connection, and tonifying Qi connecting leg 11, three connecting pipes 4, tonifying Qi solenoid valve 3, reduction valve 2 etc. are removed, cased.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. an electric power SF
6the charged intelligent making-up air device of transformer, is characterized in that: comprise and have SF
6gas cylinder, three connecting pipes and the tonifying Qi connecting leg of gas, the outlet of described gas cylinder is provided with reduction valve, the supervisor of described three connecting pipes connects reduction valve by tonifying Qi solenoid valve, on one branched pipe of described three connecting pipes, pressure transducer, pressure gauge with electric contact and safety valve are installed, and connecting tonifying Qi connecting leg by aeration valve, the described tonifying Qi connecting leg the other end connects the operating electric power SF that needs tonifying Qi
6transformer Air filling and discharging valves, on another branched pipe of described three connecting pipes, bypass valve is installed, described tonifying Qi solenoid valve and pressure transducer are electrically connected at control module, and described tonifying Qi solenoid valve is also electrically connected at pressure gauge with electric contact, and described pressure gauge with electric contact is also electrically connected with alarm.
2. electric power SF according to claim 1
6the charged intelligent making-up air device of transformer, is characterized in that: the required tonifying Qi electric power SF of the online detection of described pressure transducer
6real-time gas pressure value in transformer, and be converted into digital signal transfers to control module; The digital signal that described control module is come according to pressure transducer transmission is opened tonifying Qi solenoid valve automatically, and controls the open degree of tonifying Qi solenoid valve.
3. electric power SF according to claim 1
6the charged intelligent making-up air device of transformer, is characterized in that: described pressure gauge with electric contact is closed tonifying Qi solenoid valve automatically according to its predefined tonifying Qi limiting pressure value.
4. electric power SF according to claim 1
6the charged intelligent making-up air device of transformer, is characterized in that: described pressure gauge with electric contact is connected alarm automatically according to its predefined tonifying Qi limiting pressure value.
5. electric power SF according to claim 1
6the charged intelligent making-up air device of transformer, it is characterized in that: described safety valve is automatically opened in the time that air compensating system internal pressure exceedes predefined tonifying Qi limiting pressure value, described safety valve cuts out below air compensating system internal pressure drops to predefined tonifying Qi limiting pressure value time automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054147.4U CN203743827U (en) | 2014-01-28 | 2014-01-28 | Charged intelligent gas supply device of power SF6 transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054147.4U CN203743827U (en) | 2014-01-28 | 2014-01-28 | Charged intelligent gas supply device of power SF6 transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743827U true CN203743827U (en) | 2014-07-30 |
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ID=51343628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420054147.4U Expired - Fee Related CN203743827U (en) | 2014-01-28 | 2014-01-28 | Charged intelligent gas supply device of power SF6 transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743827U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791230A (en) * | 2014-01-28 | 2014-05-14 | 国家电网公司 | Electrified intelligent gas supplement device and gas supplement method of electricity sulfur hexafluoride transformer |
| CN107965664A (en) * | 2017-11-22 | 2018-04-27 | 中国西电电气股份有限公司 | A kind of device and method that automatic inflating device deflation is carried out to transformer |
-
2014
- 2014-01-28 CN CN201420054147.4U patent/CN203743827U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791230A (en) * | 2014-01-28 | 2014-05-14 | 国家电网公司 | Electrified intelligent gas supplement device and gas supplement method of electricity sulfur hexafluoride transformer |
| CN103791230B (en) * | 2014-01-28 | 2015-09-02 | 国家电网公司 | A kind of electric power charged intelligent making-up air device of SF6 transformer and supplementing method for air thereof |
| CN107965664A (en) * | 2017-11-22 | 2018-04-27 | 中国西电电气股份有限公司 | A kind of device and method that automatic inflating device deflation is carried out to transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20220128 |