CN203606339U - Device for detecting sulfur hexafluoride leakage alarming instrument - Google Patents
Device for detecting sulfur hexafluoride leakage alarming instrument Download PDFInfo
- Publication number
- CN203606339U CN203606339U CN201320725128.5U CN201320725128U CN203606339U CN 203606339 U CN203606339 U CN 203606339U CN 201320725128 U CN201320725128 U CN 201320725128U CN 203606339 U CN203606339 U CN 203606339U
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- CN
- China
- Prior art keywords
- solenoid valve
- valve
- mass flow
- flow controller
- mixer
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- 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 - Lifetime
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- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 14
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims description 34
- 239000012159 carrier gas Substances 0.000 claims description 16
- 238000012795 verification Methods 0.000 claims description 10
- 238000010790 dilution Methods 0.000 abstract description 3
- 239000012895 dilution Substances 0.000 abstract description 3
- 230000006837 decompression Effects 0.000 abstract 3
- 230000003139 buffering effect Effects 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 6
- 239000003085 diluting agent Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Accessories For Mixers (AREA)
Abstract
The utility model provides a device for detecting a sulfur hexafluoride leakage alarming instrument. The device is characterized in that a raw material gas steel bottle is connected with a first mixer sequentially by a first decompression valve, a first solenoid valve and a first mass flow controller; a diluted gas steel bottle is connected with a second solenoid valve, a third solenoid valve and a fourth solenoid valve sequentially by a second decompression valve and a check valve; the other end of the second solenoid valve is connected with the first mixer by a second mass flow controller; the output end of the first mixer is connected with a second mixer sequentially by a first buffering tank, a pressure releasing valve, a sixth solenoid valve and a third mass flow controller; the other end of the third solenoid valve is connected with the second mixer by a fourth mass flow controller; a checking cavity is connected with the output end of the second mixer; the third mass flow controller is connected with the connection part of the first decompression valve and the first solenoid valve through a fifth solenoid valve; the other end of the fourth solenoid valve is connected with a mini-type air pump sequentially by a second buffering tank, a pressure transmitter and an air purifier. The system has various functions, large dilution range and high automation precision.
Description
Technical field
It is a kind of for checking the device of sulfur hexafluoride leakage alarm that the utility model provides, and belongs to field of measuring techniques.。
Background technology
SF in air between clear and definite predetermined operation in GB/T8905-1996 " in sulfur hexafluoride electrical equipment gas delivery and check guide rule "
6the ultimate value of gas concentration.For this reason, the electrical room that the middle regulation of DL 408-1991 " electrical safe working order " (generating plant and electric substation's electric part) is equipped with sulfur hexafluoride equipment must be installed oxygen measuring apparatus and the sulfur hexafluoride gas leakage alarm that can report to the police, instrument is answered routine test, guarantees intact.At present, SF
6the leakage warning device of gas is of a great variety, detects principle different, and the sensitivity of most products, accuracy, stability all can not get effective assurance.Owing to lacking SF
6effective calibration means of leakage warning device, this cannot carry out the verifying work of above-mentioned warning device.In state's net system, there is not at present related measure to ensure SF
6the normal operation of leakage warning device, for this reason, researching and developing a kind of has been the task of top priority for checking the device of sulfur hexafluoride leakage alarm.
Utility model content
The purpose of this utility model is to provide that a kind of reasonable in design, compact conformation, body weight are light, distribution precision and automaticity high for checking the device of sulfur hexafluoride leakage alarm.Its technical scheme is:
For checking a device for sulfur hexafluoride leakage alarm, it is characterized in that: comprise unstripped gas steel cylinder, carrier gas steel cylinder, the first reduction valve, the second reduction valve, the first solenoid valve, the second solenoid valve, the 3rd solenoid valve, the 4th solenoid valve, the 5th solenoid valve, the 6th solenoid valve, the first mass flow controller, the second mass flow controller, the 3rd mass flow controller, the 4th mass flow controller, retaining valve, blowdown valve, the first mixer, the second mixer, the first surge tank, the second surge tank, pressure unit, air purifier, mini air pump and verification chamber, wherein the output terminal of unstripped gas steel cylinder is successively through the first reduction valve, the first solenoid valve and the first mass flow controller connect the input end of the first mixer, and the output terminal of carrier gas steel cylinder connects respectively the second solenoid valve through the second reduction valve and retaining valve successively, the 3rd solenoid valve and the 4th solenoid valve, the other end of the second solenoid valve connects the input end of the first mixer through the second mass flow controller, and the output terminal of the first mixer is successively through the first surge tank, blowdown valve, the 6th solenoid valve and the 3rd mass flow controller connect the input end of the second mixer, and the other end of the 3rd solenoid valve connects the input end of the second mixer through the 4th mass flow controller, the output termination verification chamber of the second mixer, the junction of the first reduction valve and the first solenoid valve the 5th solenoid valve connects the 3rd mass flow controller, the other end of the 4th solenoid valve connects mini air pump through the second surge tank, pressure unit and air purifier successively.
Its principle of work is:
1, system pipeline cleans: open the second solenoid valve, the 3rd solenoid valve, the 4th solenoid valve, the 6th solenoid valve, the second mass flow controller, the 3rd mass flow controller and the 4th mass flow controller, open mini air pump system pipeline is cleaned.
2, one-level gas cylinder distribution: open unstripped gas steel cylinder, being adjusted to suitable gaseous tension by the first reduction valve is 0.2MPa; Then open carrier gas steel cylinder, being adjusted to suitable gaseous tension by the second reduction valve is 0.2MPa; Open the 5th solenoid valve, the 3rd solenoid valve, the 3rd mass flow controller and the 4th mass flow controller, the unstripped gas after proportioning and carrier gas mix laggard verification chamber in the second mixer again, complete the distribution of one-level gas cylinder.
3, one-level air pump distribution: open unstripped gas steel cylinder, being adjusted to suitable gaseous tension by the first reduction valve is 0.2MPa; Then open mini air pump and the 4th solenoid valve, air after purification under the control of pressure unit with constant pressure through the second surge tank, open again the 5th solenoid valve, the 3rd solenoid valve, the 3rd mass flow controller and the 4th mass flow controller, unstripped gas after proportioning and carrier gas mix laggard verification chamber in the second mixer, complete the distribution of one-level air pump.
4, secondary gas cylinder distribution: open unstripped gas steel cylinder, being adjusted to suitable gaseous tension by the first reduction valve is 0.2MPa; Then open carrier gas steel cylinder, being adjusted to suitable gaseous tension by the second reduction valve is 0.2MPa; Open the first solenoid valve, the second solenoid valve, the first mass flow controller and the second mass flow controller, the unstripped gas after proportioning and carrier gas mix in the first mixer again, finally enter the first surge tank, complete elementary distribution; The mixture pressure that level had been prepared is originally higher than 0.18MPa, and blowdown valve is opened, emptying mixed gas unnecessary in the first surge tank; Otherwise carry out secondary distribution: open the 6th solenoid valve and the 3rd mass flow controller, open the 3rd solenoid valve and the 4th mass flow controller simultaneously, diluents in mixed gas in the first surge tank and carrier gas steel cylinder enters verification chamber through the second mixer in certain proportion, completes the distribution of secondary gas cylinder.
5, secondary air pump distribution: open unstripped gas steel cylinder, being adjusted to suitable gaseous tension by the first reduction valve is 0.2MPa; Then open mini air pump and the 4th solenoid valve, the air after purification under the control of pressure unit with constant pressure through the second surge tank; Open the first solenoid valve, the second solenoid valve, the first mass flow controller and the second mass flow controller, the unstripped gas after proportioning and carrier gas mix in the first mixer again, finally enter the first surge tank, complete elementary distribution; The mixture pressure that level had been prepared is originally higher than 0.18MPa, and blowdown valve is opened, emptying mixed gas unnecessary in the first surge tank; Otherwise carry out secondary distribution: open the 6th solenoid valve and the 3rd mass flow controller, open the 3rd solenoid valve and the 4th mass flow controller simultaneously, diluents in mixed gas in the first surge tank and carrier gas steel cylinder enters verification chamber through the second mixer in certain proportion, completes the distribution of secondary air pump.
The utlity model has the advantage of following aspect:
1, the utility model can be realized one-level, secondary gas configuration, and dilution range is large, and robotization precision is high.
2, the utility model can adopt liquid SF6 and mini air pump as gas source of the gas, the various concentration SF6 calibrating gas by two-stage distribution dilution for needing, thus avoid carrying a large amount of SF6 Standard Gases and carrier gas steel cylinder.
3, air source of the gas of the present utility model can be selected air pump pattern or gas cylinder pattern, and when air pump pattern, pure air is to be provided by mini air pump; While adopting gas cylinder pattern, pure air is to be provided by carrier gas steel cylinder.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
In figure: 1, unstripped gas steel cylinder 2, carrier gas steel cylinder 3, the first reduction valve 4, the second reduction valve 5, the first solenoid valve 6, the second solenoid valve 7, the 3rd solenoid valve 8, the 4th solenoid valve 9, the 5th solenoid valve 10, the 6th solenoid valve 11, the first mass flow controller 12, the second mass flow controller 13, the 3rd mass flow controller 14, the 4th mass flow controller 15, retaining valve 16, blowdown valve 17, the first mixer 18, the second mixer 19, the first surge tank 20, the second surge tank 21, pressure unit 22, air purifier 23, mini air pump 24, verification chamber
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.In the embodiment shown in fig. 1: the output terminal of unstripped gas steel cylinder 1 is successively through the first reduction valve 3, the first solenoid valve 5 and the first mass flow controller 11 connect the input end of the first mixer 17, the output terminal of carrier gas steel cylinder 2 connects respectively the second solenoid valve 6 through the second reduction valve 4 and retaining valve 15 successively, the 3rd solenoid valve 7 and the 4th solenoid valve 8, the other end of the second solenoid valve 6 connects the input end of the first mixer 17 through the second mass flow controller 12, the output terminal of the first mixer 17 is successively through the first surge tank 19, blowdown valve 16, the 6th solenoid valve 10 and the 3rd mass flow controller 13 connect the input end of the second mixer 18, the other end of the 3rd solenoid valve 7 connects the input end of the second mixer 18 through the 4th mass flow controller 14, the output termination verification chamber 24 of the second mixer 18, junction the 5th solenoid valve 9 of the first reduction valve 3 and the first solenoid valve 5 connects the 3rd mass flow controller 13, the other end of the 4th solenoid valve 8 connects mini air pump 23 through the second surge tank 20, pressure unit 21 and air purifier 22 successively.
Claims (1)
1. for checking a device for sulfur hexafluoride leakage alarm, it is characterized in that: comprise unstripped gas steel cylinder (1), carrier gas steel cylinder (2), the first reduction valve (3), the second reduction valve (4), the first solenoid valve (5), the second solenoid valve (6), the 3rd solenoid valve (7), the 4th solenoid valve (8), the 5th solenoid valve (9), the 6th solenoid valve (10), the first mass flow controller (11), the second mass flow controller (12), the 3rd mass flow controller (13), the 4th mass flow controller (14), retaining valve (15), blowdown valve (16), the first mixer (17), the second mixer (18), the first surge tank (19), the second surge tank (20), pressure unit (21), air purifier (22), mini air pump (23) and verification chamber (24), wherein the output terminal of unstripped gas steel cylinder (1) is successively through the first reduction valve (3), the first solenoid valve (5) and the first mass flow controller (11) connect the input end of the first mixer (17), and the output terminal of carrier gas steel cylinder (2) connects respectively the second solenoid valve (6) through the second reduction valve (4) and retaining valve (15) successively, the 3rd solenoid valve (7) and the 4th solenoid valve (8), the other end of the second solenoid valve (6) connects the input end of the first mixer (17) through the second mass flow controller (12), and the output terminal of the first mixer (17) is successively through the first surge tank (19), blowdown valve (16), the 6th solenoid valve (10) and the 3rd mass flow controller (13) connect the input end of the second mixer (18), the other end of the 3rd solenoid valve (7) connects the input end of the second mixer (18), the output termination verification chamber (24) of the second mixer (18) through the 4th mass flow controller (14), junction the 5th solenoid valve (9) of the first reduction valve (3) and the first solenoid valve (5) connects the 3rd mass flow controller (13), the other end of the 4th solenoid valve (8) connects mini air pump (23) through the second surge tank (20), pressure unit (21) and air purifier (22) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725128.5U CN203606339U (en) | 2013-11-15 | 2013-11-15 | Device for detecting sulfur hexafluoride leakage alarming instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725128.5U CN203606339U (en) | 2013-11-15 | 2013-11-15 | Device for detecting sulfur hexafluoride leakage alarming instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203606339U true CN203606339U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320725128.5U Expired - Lifetime CN203606339U (en) | 2013-11-15 | 2013-11-15 | Device for detecting sulfur hexafluoride leakage alarming instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203606339U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558346A (en) * | 2013-11-15 | 2014-02-05 | 国家电网公司 | Device for checking sulfur hexafluoride leakage alarm apparatus |
| CN105822897A (en) * | 2016-05-13 | 2016-08-03 | 国家电网公司 | Method and device for dynamic gas mixing and filling under pressure within wide range |
| CN105866329A (en) * | 2016-03-24 | 2016-08-17 | 安阳化学工业集团有限责任公司 | Verification apparatus for explosimeter |
| CN105911224A (en) * | 2016-05-13 | 2016-08-31 | 国家电网公司 | Gas distribution method and gas distribution device for checking SF6 (sulfur hexafluoride) analyzer |
| CN108692870A (en) * | 2018-05-08 | 2018-10-23 | 广州供电局有限公司 | SF6Leak detector test method and device |
-
2013
- 2013-11-15 CN CN201320725128.5U patent/CN203606339U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558346A (en) * | 2013-11-15 | 2014-02-05 | 国家电网公司 | Device for checking sulfur hexafluoride leakage alarm apparatus |
| CN105866329A (en) * | 2016-03-24 | 2016-08-17 | 安阳化学工业集团有限责任公司 | Verification apparatus for explosimeter |
| CN105822897A (en) * | 2016-05-13 | 2016-08-03 | 国家电网公司 | Method and device for dynamic gas mixing and filling under pressure within wide range |
| CN105911224A (en) * | 2016-05-13 | 2016-08-31 | 国家电网公司 | Gas distribution method and gas distribution device for checking SF6 (sulfur hexafluoride) analyzer |
| CN108692870A (en) * | 2018-05-08 | 2018-10-23 | 广州供电局有限公司 | SF6Leak detector test method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |
|
| CX01 | Expiry of patent term |