CN104964815A - SF6 density relay pressure contact detecting device - Google Patents
SF6 density relay pressure contact detecting device Download PDFInfo
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- CN104964815A CN104964815A CN201510376194.XA CN201510376194A CN104964815A CN 104964815 A CN104964815 A CN 104964815A CN 201510376194 A CN201510376194 A CN 201510376194A CN 104964815 A CN104964815 A CN 104964815A
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- density monitor
- pressure
- detected
- gas
- adjusting mechanism
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Abstract
The invention discloses an SF6 density relay pressure contact detecting device which comprises a detecting frame body, a pressure gas source, a calibration meter and an air pressure regulating mechanism. A number of SF6 density relays to be detected are arranged on the detecting frame body. The pressure gas source is connected with the calibration meter through a pipeline, is connected with a number of SF6 density relays to be detected, and is connected with the air pressure regulating mechanism. The alarm contact of each SF6 density relay to be detected is connected with an alarm pressure indication lamp. The latching contact of each SF6 density relay to be detected is connected with a latching pressure indication lamp. The alarm pressure indication lamp and the latching pressure indication lamp are connected with a power supply. According to the invention, the detection efficiency can be improved; a detection result can be repeated again; and the detection cost is reduced.
Description
Technical field
The present invention relates to a kind of SF6 density monitor pressure contact pick-up unit.
Background technology
In power switch field; SF6(sulfur hexafluoride) density monitor is important protection in this field and control element; for ensureing power switch operational reliability; often must monitor the pressure of SF6 gas in power switch; SF6 density monitor need be installed in power switch, to detect the change of SF6 gas density in power switch.
When the SF6 gaseous tension in power switch reaches locking pressure, the latch contact action of SF6 density monitor closes, and sends information; When the SF6 gaseous tension in power switch reaches alarm pressure (SF6 gaseous tension is too low), the alarm actuating contact action of SF6 density monitor closes, and sends information.
Therefore, need detect during SF6 density monitor product export and report to the police with under locking pressure in regulation, it is reported to the police and whether the action of latch contact meets properties of product requirement.In prior art, detect usually single carrying out to the performance of the warning of SF6 density monitor and latch contact, detection efficiency is low, but SF6 density monitor use amount is large, and described detection cannot meet need of production.Meanwhile, prior art detects SF6 density monitor and reports to the police and the performance of latch contact, usually uses SF6 gas, uses SF6 gas to reclaim difficulty, and cost is higher and not environmentally.
In view of this, be badly in need of having a kind of can accurately not only flexible, environmental protection not only cost is low, detection efficiency efficient but also can the pick-up unit of repetition testing result, to meet a large amount of production testing demand, improve detection efficiency and reduce costs, this case produces thus.
Summary of the invention
The object of the present invention is to provide a kind of SF6 density monitor pressure contact pick-up unit, to improve detection efficiency, can repetition testing result, reduce testing cost.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of SF6 density monitor pressure contact pick-up unit, comprises and detects support body, pressure gas source, correction card and Pneumatic adjusting mechanism; Multiple SF6 density monitor to be detected is arranged on and detects on support body, and pressure gas source is connected with multiple SF6 density monitor to be detected respectively, then is connected with Pneumatic adjusting mechanism after being first connected with correction card by pipeline; The alarm actuating contact of each SF6 density monitor to be detected is connected with alarm pressure pilot lamp, and the latch contact of each SF6 density monitor to be detected is connected with locking pressure indicator light, and alarm pressure pilot lamp is connected with power supply respectively with locking pressure indicator light.
Further, pressure gas source comprises gas cylinder, reduction valve and gas-filled tube, and reduction valve one end is connected with gas cylinder, and the reduction valve other end is connected with correction card input end, after correction card output terminal is connected with multiple SF6 density monitor to be detected respectively by pipeline, connect Pneumatic adjusting mechanism.
Further, the source of the gas in gas cylinder is N
2, or be O
2.
Further, Pneumatic adjusting mechanism comprises cylinder, drive lead screw and transmission nut; Cylinder is arranged on and detects on support body, and be connected with pressure gas source pipeline, cylinder piston is connected with drive lead screw, and drive lead screw is screwed onto in transmission nut, and transmission nut is fixed on detection support body.
Further, drive lead screw one end is connected with cylinder piston, and the drive lead screw other end arranges turning handle.
Further, the connecting tube of the SF6 density monitor to be detected be connected on the connecting tube of correction card and with Pneumatic adjusting mechanism is separately installed with threeway Self-sealing valve, the pipeline of other SF6 density monitor to be detected is separately installed with Self-sealing valve.
After adopting such scheme, pressure gas source of the present invention by pipeline for multiple SF6 density monitor to be detected provides gaseous tension, and the gas pressure value that Pneumatic adjusting mechanism regulates multiple SF6 density monitor to be detected different, and calibrate with correction card, regulate different gas pressure values, detect alarm pressure pilot lamp corresponding to different SF6 density monitor respectively and whether locking pressure indicator light is lighted, with the performance of the alarm actuating contact and latch contact that judge SF6 density monitor.
Therefore, the present invention is when the performance of the alarm actuating contact detecting SF6 density monitor with latch contact, and once can detect multiple, detection efficiency is efficient, and is compared by gas pressure value and correction card, the accuracy of raising detection; Regulate different gas pressure values by Pneumatic adjusting mechanism, and can re-adjustments, make testing result can repetition; Pressure gas source can use N
2or be O
2, without the need to using SF6 gas, save testing cost, and comparatively environmental protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation in Figure 1A direction;
Fig. 3 is the structural representation in Figure 1B direction;
Fig. 4 is vertical view of the present invention.
Label declaration
Detect support body 1 pressure gas source 2
Gas cylinder 21 reduction valve 22
Gas-filled tube 23 correction card 3
Pneumatic adjusting mechanism 4 cylinder 41
Drive lead screw 42 transmission nut 43
Turning handle 44 SF6 density monitor 5
Alarm pressure pilot lamp 51 locking pressure indicator light 52
Pipeline 6 power supply 7
Threeway Self-sealing valve 81 Self-sealing valve 82.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in detail.
Consult shown in Fig. 1 to Fig. 4, a kind of SF6 density monitor pressure contact pick-up unit that the present invention discloses, comprise and detect support body 1, pressure gas source 2, correction card 3 and Pneumatic adjusting mechanism 4.
Correction card 3 and multiple SF6 density monitor 5 to be detected are arranged on and detect on support body 1, the present embodiment SF6 density monitor 5 to be detected is set to 5, SF6 density monitor correction card 3 is through professional detection department periodic check specification product, carries out pressure contact proofread and verify with SF6 density monitor to be checked.
Pressure gas source 2 is connected with multiple SF6 density monitor 5 to be detected respectively, then is connected with Pneumatic adjusting mechanism 4 after being first connected with correction card 3 by pipeline 6.Pressure gas source 2 is respectively correction card 3 and multiple SF6 density monitor 5 to be detected provides pressed gas.
The alarm actuating contact of each SF6 density monitor 5 to be detected is connected with alarm pressure pilot lamp 51, and the latch contact of each SF6 density monitor 5 to be detected is connected with locking pressure indicator light 52, alarm pressure pilot lamp 51 is connected with power supply 7 respectively with locking pressure indicator light 52, and power supply 7 is generally 24V direct supply.
In the present embodiment, pressure gas source 2 comprises gas cylinder 21, reduction valve 22 and gas-filled tube 23, reduction valve 22 one end is connected with gas cylinder 21, reduction valve 22 other end is connected with correction card 3 input end, after correction card 3 output terminal is connected with multiple SF6 density monitor 5 to be detected respectively by pipeline 6, connect Pneumatic adjusting mechanism 4.Source of the gas in gas cylinder 21 is N
2, or be O
2, without the need to using SF6 gas, save testing cost, and comparatively environmental protection.
Pneumatic adjusting mechanism 4 comprises cylinder 41, drive lead screw 42 and transmission nut 43; Cylinder 41 is arranged on and detects on support body 1, and be connected with the pipeline 6 of pressure gas source 2, cylinder 41 piston is connected with drive lead screw 42, and drive lead screw 42 is screwed onto in transmission nut 43, and transmission nut 43 is fixed on detection support body 1.Drive lead screw 42 one end is connected with cylinder 41 piston, and drive lead screw 42 other end arranges turning handle 44.Rotate drive lead screw 42 displacement in transmission nut 43 by turning handle 44, order about cylinder 41 piston displacement, thus change the gaseous tension in pipeline 6, and can re-adjustments, make testing result can repetition.
The connecting tube 6 of the SF6 density monitor 5 to be detected be connected on the connecting tube 6 of correction card 3 and with Pneumatic adjusting mechanism 4 is separately installed with threeway Self-sealing valve 81, as shown in Figure 2, threeway Self-sealing valve 81 is retaining valve, and the pipeline of other SF6 density monitor 5 to be detected is separately installed with Self-sealing valve 82, Self-sealing valve 82 is retaining valve, as shown in Figure 1.
Pressure gas source 2 of the present invention by pipeline 6 for multiple SF6 density monitor 5 to be detected provides gaseous tension, and the gas pressure value that Pneumatic adjusting mechanism 4 regulates multiple SF6 density monitor 5 to be detected different, and calibrate with correction card 3, regulate different gas pressure values, whether the alarm pressure pilot lamp 51 and the locking pressure indicator light 52 that detect different SF6 density monitor 5 correspondence are respectively lighted, with the performance of the alarm actuating contact and latch contact that judge SF6 density monitor 5.
When the performance of the alarm actuating contact detecting SF6 density monitor 5 with latch contact, once can detect multiple, detection efficiency is efficient, and is compared by gas pressure value and correction card 3, the accuracy of raising detection.
The foregoing is only the preferred embodiments of the present invention, not to the restriction of this case design, all equivalent variations done according to the design key of this case, all fall into the protection domain of this case.
Claims (6)
1. a SF6 density monitor pressure contact pick-up unit, is characterized in that: comprise and detect support body, pressure gas source, correction card and Pneumatic adjusting mechanism; Multiple SF6 density monitor to be detected is arranged on and detects on support body, and pressure gas source is connected with multiple SF6 density monitor to be detected respectively, then is connected with Pneumatic adjusting mechanism after being first connected with correction card by pipeline; The alarm actuating contact of each SF6 density monitor to be detected is connected with alarm pressure pilot lamp, and the latch contact of each SF6 density monitor to be detected is connected with locking pressure indicator light, and alarm pressure pilot lamp is connected with power supply respectively with locking pressure indicator light.
2. a kind of SF6 density monitor pressure contact pick-up unit as claimed in claim 1, it is characterized in that: pressure gas source comprises gas cylinder, reduction valve and gas-filled tube, reduction valve one end is connected with gas cylinder, the reduction valve other end is connected with correction card input end, after correction card output terminal is connected with multiple SF6 density monitor to be detected respectively by pipeline, connect Pneumatic adjusting mechanism.
3. a kind of SF6 density monitor pressure contact pick-up unit as claimed in claim 2, is characterized in that: the source of the gas in gas cylinder is N
2, or be O
2.
4. a kind of SF6 density monitor pressure contact pick-up unit as claimed in claim 1, is characterized in that: Pneumatic adjusting mechanism comprises cylinder, drive lead screw and transmission nut; Cylinder is arranged on and detects on support body, and be connected with pressure gas source pipeline, cylinder piston is connected with drive lead screw, and drive lead screw is screwed onto in transmission nut, and transmission nut is fixed on detection support body.
5. a kind of SF6 density monitor pressure contact pick-up unit as claimed in claim 4, it is characterized in that: drive lead screw one end is connected with cylinder piston, the drive lead screw other end arranges turning handle.
6. a kind of SF6 density monitor pressure contact pick-up unit as claimed in claim 1, it is characterized in that: the connecting tube of the SF6 density monitor to be detected be connected on the connecting tube of correction card and with Pneumatic adjusting mechanism is separately installed with threeway Self-sealing valve, the pipeline of other SF6 density monitor to be detected is separately installed with Self-sealing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510376194.XA CN104964815A (en) | 2015-07-01 | 2015-07-01 | SF6 density relay pressure contact detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510376194.XA CN104964815A (en) | 2015-07-01 | 2015-07-01 | SF6 density relay pressure contact detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104964815A true CN104964815A (en) | 2015-10-07 |
Family
ID=54218865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510376194.XA Pending CN104964815A (en) | 2015-07-01 | 2015-07-01 | SF6 density relay pressure contact detecting device |
Country Status (1)
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|---|---|
| CN (1) | CN104964815A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386731A (en) * | 2018-12-05 | 2019-02-26 | 河南送变电建设有限公司 | A kind of SF6 gas automatic filling system of GIS device and filling method |
| CN112688222A (en) * | 2020-11-12 | 2021-04-20 | 江苏南瑞帕威尔电气有限公司 | Two-in-one low-pressure locking device suitable for gas insulation ring main unit |
| CN112763790A (en) * | 2020-12-28 | 2021-05-07 | 中国南方电网有限责任公司超高压输电公司广州局 | Electrified check gauge of SF6 density relay |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06222104A (en) * | 1993-01-26 | 1994-08-12 | Mitsubishi Electric Corp | Troubled gas section detecting apparatus of gas insulated equipment |
| JPH08241654A (en) * | 1995-03-03 | 1996-09-17 | Takaoka Electric Mfg Co Ltd | Failure detecting device for gas-blast circuit-breaker |
| CN2831095Y (en) * | 2005-05-27 | 2006-10-25 | 厦门Abb华电高压开关有限公司 | Gas density relay tester |
| CN1987412A (en) * | 2006-12-27 | 2007-06-27 | 郑州赛奥电子有限公司 | SF6 gas density relay corrector and its detecting method |
| CN201004041Y (en) * | 2007-01-08 | 2008-01-09 | 苏丽芳 | SF6 air density relay calibrator for automatic rated value test |
| CN201788260U (en) * | 2010-03-24 | 2011-04-06 | 山东泰开高压开关有限公司 | Sulfur hexafluoride gas density relay test stand |
| CN102103016A (en) * | 2009-12-17 | 2011-06-22 | 上海莫克电子技术有限公司 | SF6 gas density relay calibrator |
| CN202453470U (en) * | 2012-02-13 | 2012-09-26 | 福建瑞能博尔电力设备有限公司 | Checking instrument for SF6 gas density relay |
| CN204882042U (en) * | 2015-07-01 | 2015-12-16 | 许继（厦门）智能电力设备股份有限公司 | SF6 density relay pressure contact detection device |
-
2015
- 2015-07-01 CN CN201510376194.XA patent/CN104964815A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06222104A (en) * | 1993-01-26 | 1994-08-12 | Mitsubishi Electric Corp | Troubled gas section detecting apparatus of gas insulated equipment |
| JPH08241654A (en) * | 1995-03-03 | 1996-09-17 | Takaoka Electric Mfg Co Ltd | Failure detecting device for gas-blast circuit-breaker |
| CN2831095Y (en) * | 2005-05-27 | 2006-10-25 | 厦门Abb华电高压开关有限公司 | Gas density relay tester |
| CN1987412A (en) * | 2006-12-27 | 2007-06-27 | 郑州赛奥电子有限公司 | SF6 gas density relay corrector and its detecting method |
| CN201004041Y (en) * | 2007-01-08 | 2008-01-09 | 苏丽芳 | SF6 air density relay calibrator for automatic rated value test |
| CN102103016A (en) * | 2009-12-17 | 2011-06-22 | 上海莫克电子技术有限公司 | SF6 gas density relay calibrator |
| CN201788260U (en) * | 2010-03-24 | 2011-04-06 | 山东泰开高压开关有限公司 | Sulfur hexafluoride gas density relay test stand |
| CN202453470U (en) * | 2012-02-13 | 2012-09-26 | 福建瑞能博尔电力设备有限公司 | Checking instrument for SF6 gas density relay |
| CN204882042U (en) * | 2015-07-01 | 2015-12-16 | 许继（厦门）智能电力设备股份有限公司 | SF6 density relay pressure contact detection device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386731A (en) * | 2018-12-05 | 2019-02-26 | 河南送变电建设有限公司 | A kind of SF6 gas automatic filling system of GIS device and filling method |
| CN109386731B (en) * | 2018-12-05 | 2024-02-20 | 河南送变电建设有限公司 | SF6 gas automatic filling system and filling method of GIS equipment |
| CN112688222A (en) * | 2020-11-12 | 2021-04-20 | 江苏南瑞帕威尔电气有限公司 | Two-in-one low-pressure locking device suitable for gas insulation ring main unit |
| CN112688222B (en) * | 2020-11-12 | 2023-05-02 | 江苏南瑞帕威尔电气有限公司 | Two-in-one low-pressure locking device suitable for gas-insulated ring main unit |
| CN112763790A (en) * | 2020-12-28 | 2021-05-07 | 中国南方电网有限责任公司超高压输电公司广州局 | Electrified check gauge of SF6 density relay |
| CN112763790B (en) * | 2020-12-28 | 2022-06-14 | 中国南方电网有限责任公司超高压输电公司广州局 | Electrified check gauge of SF6 density relay |
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| PB01 | Publication | ||
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Application publication date: 20151007 |