CN106405395B - Verification equipment for sulfur hexafluoride density relay - Google Patents
Verification equipment for sulfur hexafluoride density relay Download PDFInfo
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- CN106405395B CN106405395B CN201610474160.9A CN201610474160A CN106405395B CN 106405395 B CN106405395 B CN 106405395B CN 201610474160 A CN201610474160 A CN 201610474160A CN 106405395 B CN106405395 B CN 106405395B
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- sulfur hexafluoride
- movable plug
- inflator
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- flange
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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Abstract
The invention provides verification equipment for a sulfur hexafluoride density relay, which comprises an inflation mechanism, a movable plug driving handle, a transmission mechanism, two air guide pipes and a sulfur hexafluoride calibrator, wherein the air guide pipes are connected with the movable plug driving handle; the inflation mechanism comprises an inflator, a movable plug and a mounting frame, and a first flange is arranged at the second end of the inflator; the two ends of the air duct are provided with connecting pipes, a mounting ring is arranged in the connecting pipes, a sealing disc is movably arranged on the mounting ring, and a second flange is arranged on one side of the connecting pipe away from the air duct; the sulfur hexafluoride calibrator is provided with two air guide ports, a third flange is arranged at the position corresponding to the air guide ports of the sulfur hexafluoride calibrator, and a first abutting column is movably arranged on the third flange; the first flange plate is movably provided with a second abutting column. The invention has convenient use, saves manpower and reduces the influence on the environment.
Description
Technical Field
The invention relates to the field of electric power overhaul, in particular to verification equipment for a sulfur hexafluoride density relay.
Background
According to eighteen important anti-accident measures of the power grid of the national power grid company: the sulfur hexafluoride density relay should be checked regularly to prevent false alarm or non-alarm of the breaker caused by inaccurate or deviated action value of the density relay. Meanwhile, the connection mode between the sulfur hexafluoride density relay and the electrical equipment body is required to meet the requirement of not disassembling the check density relay. Therefore, the density relay of the sulfur hexafluoride gas charging equipment is generally checked in a non-dismantling check mode on the transformer substation site, and the check work is limited to be performed on the transformer substation site.
At present, when a transformer substation performs verification on a density relay, a maintainer often needs to carry a heavy sulfur hexafluoride gas cylinder to the site for providing a calibration gas source for a calibrator and the density relay during the verification of the density relay, and after the verification is finished, residual high-pressure gas after each measurement is possibly discharged into the atmosphere due to leakage due to the limitation of a measurement principle, so that the environmental impact is large. Meanwhile, due to the specificity of sulfur hexafluoride gas, the sulfur hexafluoride gas is inconvenient to store and carry.
Therefore, verification of sulfur hexafluoride density relays in the transformer substation is often laborious, time-consuming, has a large influence on the environment and has high safety risk, and accordingly the maintenance work is high in safety management cost.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides verification equipment for a sulfur hexafluoride density relay.
The invention provides verification equipment for a sulfur hexafluoride density relay, which comprises an inflation mechanism, a movable plug driving handle, a transmission mechanism, two air guide pipes and a sulfur hexafluoride calibrator;
the inflation mechanism comprises an inflator, a movable plug and a mounting frame, wherein the movable plug is movably arranged in the inflator, the movement direction of the movable plug is the axial direction of the inflator, the movable plug is in airtight fit with the inner wall of the inflator, the mounting frame is arranged at the first end of the inflator, a movable plug driving handle is rotatably arranged on the mounting frame, the movable plug driving handle is connected with the movable plug through a transmission mechanism, and the second end of the inflator is provided with a first flange;
the two ends of the air duct are provided with connecting pipes, a mounting ring is arranged in the connecting pipes, a sealing disc is movably arranged on the mounting ring, the moving direction of the sealing disc is the axial direction of the connecting pipes, the sealing disc is connected with the mounting ring through a resetting piece, the sealing disc is positioned on one side, close to the air duct, of the mounting ring, and a second flange plate is arranged on one side, far away from the air duct, of the connecting pipes;
the sulfur hexafluoride calibrator is provided with two air guide ports, a third flange is arranged at the position of the sulfur hexafluoride calibrator corresponding to the air guide port, the first ends of the two air guide pipes are detachably arranged on the sulfur hexafluoride calibrator through the second flange and the third flange, a first propping column is movably arranged on the third flange and is connected with the third flange through a reset piece, the moving direction of the first propping column is the axial direction of the third flange, and the two first propping columns respectively prop against the sealing discs at the first ends of the two air guide pipes;
any one of the second ends of the air guide pipes can be detachably arranged on the inflator pump through a second flange plate and a first flange plate, a second propping column is movably arranged on the first flange plate and connected with the first flange plate through a resetting piece, the moving direction of the second propping column is the axial direction of the first flange plate, and the second propping column is propped against a sealing plate at the second end of the air guide pipe.
Preferably, an auxiliary block is rotatably arranged in the connecting pipe, the auxiliary block can be abutted against the sealing disc by rotating the auxiliary block, the auxiliary block is positioned on one side of the sealing disc, which is close to the air duct, an auxiliary block rotating handle is arranged on the periphery of the connecting pipe, and the auxiliary block rotating handle is connected with the auxiliary block.
Preferably, the transmission mechanism comprises a mounting cover, a first rotating shaft, a second rotating shaft, a first driven gear, a second driven gear, a driving gear and a driving rod; the installation cover is installed on the mounting bracket, the installation cover is internally provided with an installation cavity, the first rotating shaft and the second rotating shaft are rotatably installed on the installation cover, the first driven gear and the second driven gear are installed on the first rotating shaft, the first driven gear and the second driven gear are respectively located inside and outside the installation cavity, the driving gear is installed on the second rotating shaft, the driving gear is located inside the installation cavity, the driving gear is meshed with the first driven gear, the movable plug driving handle is connected with the first rotating shaft and located outside the installation cavity, the driving rod is installed on one side, close to the first end of the inflator, of the movable plug, the driving rod is provided with a rack, and the rack is meshed with the second driven gear.
Preferably, the movable plug driving handle is movably provided with a clamping column, and the mounting cover is provided with a plurality of clamping grooves for clamping and inserting.
Preferably, the clamping grooves are evenly distributed circumferentially around the first rotation axis.
Preferably, the mounting frame is provided with a piston rod bin for moving the driving rod.
Preferably, the second end of the inflator is provided with a regulating valve, and the regulating valve is positioned between the first flange plate and the movable plug.
The invention connects the air duct which is not connected with the first flange plate with the electric equipment, the electric equipment injects the air into the inflator through the two air ducts, the movable plug is connected with the movable plug through the transmission mechanism, the inflator provides space for the air injection, the first abutting column and the second abutting column abut against the sealing plate, the separation of the sealing plate and the mounting ring is realized, the circulation of the air is realized, and when the air duct is detached from the sulfur hexafluoride calibrator or the inflator, the first abutting column and the second abutting column are separated from the sealing plate, the air is ensured to be remained in the air duct, the possibility of sulfur hexafluoride entering the air is reduced, and the sulfur hexafluoride loss of the electric equipment is reduced. The invention has convenient use, saves manpower and reduces the influence on the environment.
Drawings
FIG. 1 is a schematic diagram of a verification device for sulfur hexafluoride density relay according to the present invention;
FIG. 2 is a schematic diagram of a transmission mechanism according to the present invention;
fig. 3 is an end perspective view of the airway tube.
Detailed Description
Referring to fig. 1, 2 and 3, the verification device for the sulfur hexafluoride density relay provided by the invention comprises an inflation mechanism, a movable plug driving handle 2, a transmission mechanism, two air guide pipes 4 and a sulfur hexafluoride calibrator 5;
the inflation mechanism comprises an inflator 11, a movable plug 12 and a mounting frame 13, wherein the movable plug 12 is movably arranged in the inflator 11, the movement direction of the movable plug 12 is the axial direction of the inflator 11, the movable plug 12 is in airtight fit with the inner wall of the inflator 11, the mounting frame 13 is arranged at the first end of the inflator 11, the movable plug driving handle 2 is rotatably arranged on the mounting frame 13, the movable plug driving handle 2 is connected with the movable plug 12 through a transmission mechanism, and the second end of the inflator 11 is provided with a first flange 111;
connecting pipes are arranged at two ends of the air duct 4, a mounting ring 41 is arranged in the connecting pipes, a sealing disc 42 is movably arranged on the mounting ring 41, the moving direction of the sealing disc 42 is the axial direction of the connecting pipes, the sealing disc 42 is connected with the mounting ring 41 through a resetting piece, the sealing disc 42 is positioned at one side, close to the air duct 4, of the mounting ring 41, and a second flange 43 is arranged at one side, far away from the air duct 4, of the connecting pipes;
the sulfur hexafluoride calibrator 5 is provided with two air guide ports, a third flange plate 51 is arranged at the position of the sulfur hexafluoride calibrator 5 corresponding to the air guide port, the first ends of the two air guide pipes 4 are detachably arranged on the sulfur hexafluoride calibrator 5 through the second flange plate 43 and the third flange plate 51, a first propping column is movably arranged on the third flange plate 51 and is connected with the third flange plate 51 through a reset piece, the moving direction of the first propping column is the axial direction of the third flange plate 51, and the two first propping columns respectively prop against the sealing discs 42 at the first ends of the two air guide pipes 4;
the second end of any one air duct 4 is detachably mounted on the inflator 11 through a second flange 43 and a first flange 111, a second abutting column is movably mounted on the first flange 111 and connected with the first flange 111 through a resetting piece, the moving direction of the second abutting column is the axial direction of the first flange 111, and the second abutting column abuts against a sealing disc 42 at the second end of the air duct 4.
The invention connects the air duct 4 which is not connected with the first flange 111 with electric equipment, the electric equipment injects air into the inflator 11 through the two air ducts 4, the movable plug driving handle 2 is connected with the movable plug 12 through the transmission mechanism, the inflator 11 provides space for air injection, the first abutting column and the second abutting column are abutted with the sealing disc 42, the sealing disc 42 is separated from the mounting ring 41, the circulation of the air is realized, and when the air duct 4 is detached from the sulfur hexafluoride calibrator 5 or the inflator 11, the first abutting column and the second abutting column are separated from the sealing disc 42, the air is ensured to remain in the air duct 4, the possibility of sulfur hexafluoride entering air is reduced, and the sulfur hexafluoride loss of the electric equipment is reduced.
In this embodiment, an auxiliary block 44 is rotatably installed in the connection pipe, the auxiliary block 44 is rotated to enable the auxiliary block 44 to abut against the sealing disc 42, the auxiliary block 44 is located on one side of the sealing disc 42 close to the air duct 4, an auxiliary block rotating handle 45 is installed on the periphery of the connection pipe, the auxiliary block rotating handle 45 is connected with the auxiliary block 44, and when the air duct 4 is detached from the sulfur hexafluoride calibrator 5 or the inflator 11, the sealing disc 42 abuts against the mounting ring 41 through the auxiliary block 44, so that the amount of sulfur hexafluoride entering air in the detachment process is reduced.
In the present embodiment, the transmission mechanism includes a mounting cover 31, a first rotation shaft 32, a second rotation shaft 33, a first driven gear 34, a second driven gear 35, a driving gear 36, and a driving lever 37; the installation cover 31 is installed on the installation frame 13, the installation cavity 311 is arranged in the installation cover 31, the first rotating shaft 32 and the second rotating shaft 33 are rotatably installed on the installation cover 31, the first driven gear 34 and the second driven gear 35 are installed on the first rotating shaft 32, the first driven gear 34 and the second driven gear 35 are respectively positioned inside and outside the installation cavity 311, the driving gear 36 is installed on the second rotating shaft 33, the driving gear 36 is positioned inside the installation cavity 311, the driving gear 36 is meshed with the first driven gear 34, the movable plug driving handle 2 is connected with the first rotating shaft 32 and is positioned outside the installation cavity 311, the driving rod 37 is installed on one side of the movable plug 12, which is close to the first end of the inflator 11, the driving rod 37 is provided with the rack 371, the rack 371 is meshed with the second driven gear 35, and when in use, viscous liquid is filled in the installation cavity 311, and the phenomenon that gas drives the movable plug driving handle 2 to rotate at a high speed through the transmission mechanism to injure workers is avoided.
In this embodiment, the movable plug driving handle 2 is movably mounted with the snap-in posts 21, and the mounting cover 31 is provided with a plurality of snap-in slots 312 for insertion of the snap-in clips, so that the movable plug driving handle 2 is easily fixed.
In this embodiment, the clamping grooves 312 are uniformly distributed circumferentially around the first rotation shaft 32, so as to facilitate adjustment of the fixed position of the movable plug driving handle 2.
In this embodiment, the mounting frame 13 is provided with a piston rod bin 131 for moving the driving rod 37, so that the possibility of accidentally injuring a worker when the driving rod 37 moves is reduced.
In this embodiment, the second end of the inflator 11 is provided with the adjusting valve 112, and the adjusting valve 112 is located between the first flange 111 and the movable plug 12, so that the gas in the inflator 11 can be stored conveniently.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a check-up equipment for sulfur hexafluoride density relay which characterized in that: comprises an inflation mechanism, a movable plug driving handle (2), a transmission mechanism, two air guide pipes (4) and a sulfur hexafluoride calibrator (5);
the inflation mechanism comprises an inflator (11), a movable plug (12) and a mounting frame (13), wherein the movable plug (12) is movably arranged in the inflator (11), the movement direction of the movable plug (12) is the axial direction of the inflator (11), the movable plug (12) is in airtight fit with the inner wall of the inflator (11), the mounting frame (13) is arranged at the first end of the inflator (11), the movable plug driving handle (2) is rotatably arranged on the mounting frame (13), the movable plug driving handle (2) is connected with the movable plug (12) through a transmission mechanism, and the second end of the inflator (11) is provided with a first flange (111);
the two ends of the air duct (4) are provided with connecting pipes, the inside of each connecting pipe is provided with a mounting ring (41), the mounting rings (41) are movably provided with sealing discs (42), the moving direction of each sealing disc (42) is the axial direction of each connecting pipe, each sealing disc (42) is connected with each mounting ring (41) through a resetting piece, each sealing disc (42) is positioned on one side, close to the air duct (4), of each mounting ring (41), and one side, far away from the air duct (4), of each connecting pipe is provided with a second flange (43);
the sulfur hexafluoride calibrator (5) is provided with two air guide ports, a third flange plate (51) is arranged at the position of the sulfur hexafluoride calibrator (5) corresponding to the air guide port, the first ends of the two air guide pipes (4) are detachably arranged on the sulfur hexafluoride calibrator (5) through the second flange plate (43) and the third flange plate (51), a first propping column is movably arranged on the third flange plate (51), the first propping column is connected with the third flange plate (51) through a reset piece, the moving direction of the first propping column is the axial direction of the third flange plate (51), and the two first propping columns are propped against the sealing discs (42) at the first ends of the two air guide pipes (4) respectively;
the second end of any one air duct (4) is detachably arranged on the inflator pump (11) through a second flange plate (43) and a first flange plate (111), a second propping column is movably arranged on the first flange plate (111), the second propping column is connected with the first flange plate (111) through a resetting piece, the moving direction of the second propping column is the axial direction of the first flange plate (111), and the second propping column is propped against a sealing plate (42) at the second end of the air duct (4).
2. The verification device for sulfur hexafluoride density relay of claim 1, wherein: an auxiliary block (44) is rotatably arranged in the connecting pipe, the auxiliary block (44) can be abutted against the sealing disc (42) by rotating the auxiliary block (44), the auxiliary block (44) is positioned on one side of the sealing disc (42) close to the air duct (4), an auxiliary block rotating handle (45) is arranged on the periphery of the connecting pipe, and the auxiliary block rotating handle (45) is connected with the auxiliary block (44).
3. The verification device for sulfur hexafluoride density relay of claim 1, wherein: the transmission mechanism comprises a mounting cover (31), a first rotating shaft (32), a second rotating shaft (33), a first driven gear (34), a second driven gear (35), a driving gear (36) and a driving rod (37); the installation cover (31) is installed on the installation frame (13), the installation cavity (311) is arranged in the installation cover (31), the first rotating shaft (32) and the second rotating shaft (33) are rotatably installed on the installation cover (31), the first driven gear (34) and the second driven gear (35) are installed on the first rotating shaft (32), the first driven gear (34) and the second driven gear (35) are respectively located inside and outside the installation cavity (311), the driving gear (36) is installed on the second rotating shaft (33), the driving gear (36) is located inside the installation cavity (311), the driving gear (36) is meshed with the first driven gear (34), the movable plug driving handle (2) is connected with the first rotating shaft (32) and located outside the installation cavity (311), the driving rod (37) is installed on one side, close to the first end of the inflator (11), of the driving rod (37) is provided with the rack (371), and the rack (371) is meshed with the second driven gear (35).
4. The verification device for sulfur hexafluoride density relay of claim 2, wherein: the movable plug driving handle (2) is movably provided with a clamping column (21), and the mounting cover (31) is provided with a plurality of clamping grooves (312) for clamping and inserting.
5. A verification device for sulfur hexafluoride density relays of claim 3, wherein: the clamping grooves (312) are uniformly distributed circumferentially around the first rotational axis (32).
6. The verification device for sulfur hexafluoride density relay of claim 2, wherein: the mounting frame (13) is provided with a piston rod bin (131) for the driving rod (37) to move.
7. The verification device for sulfur hexafluoride density relay of claim 1, wherein: the second end of the inflator pump (11) is provided with an adjusting valve (112), and the adjusting valve (112) is positioned between the first flange plate (111) and the movable plug (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610474160.9A CN106405395B (en) | 2016-06-22 | 2016-06-22 | Verification equipment for sulfur hexafluoride density relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610474160.9A CN106405395B (en) | 2016-06-22 | 2016-06-22 | Verification equipment for sulfur hexafluoride density relay |
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| Publication Number | Publication Date |
|---|---|
| CN106405395A CN106405395A (en) | 2017-02-15 |
| CN106405395B true CN106405395B (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610474160.9A Active CN106405395B (en) | 2016-06-22 | 2016-06-22 | Verification equipment for sulfur hexafluoride density relay |
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| CN (1) | CN106405395B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2574047Y (en) * | 2002-10-23 | 2003-09-17 | 上海珂利电气有限公司 | Sulfur sixfluoride gas density relay checking instrument |
| CN204269506U (en) * | 2014-12-12 | 2015-04-15 | 江苏唐高电气科技有限公司 | A kind of gas reusing device of sulfur hexafluoride density relay tester |
| WO2016008273A1 (en) * | 2014-07-15 | 2016-01-21 | 国家电网公司 | Checking platform for sulfur hexafluoride gas humidity sensor under pressure |
| CN105514847A (en) * | 2016-02-24 | 2016-04-20 | 新疆维吾尔自治区送变电工程公司 | Mounting method of 750 KV tank type breaker |
-
2016
- 2016-06-22 CN CN201610474160.9A patent/CN106405395B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2574047Y (en) * | 2002-10-23 | 2003-09-17 | 上海珂利电气有限公司 | Sulfur sixfluoride gas density relay checking instrument |
| WO2016008273A1 (en) * | 2014-07-15 | 2016-01-21 | 国家电网公司 | Checking platform for sulfur hexafluoride gas humidity sensor under pressure |
| CN204269506U (en) * | 2014-12-12 | 2015-04-15 | 江苏唐高电气科技有限公司 | A kind of gas reusing device of sulfur hexafluoride density relay tester |
| CN105514847A (en) * | 2016-02-24 | 2016-04-20 | 新疆维吾尔自治区送变电工程公司 | Mounting method of 750 KV tank type breaker |
Non-Patent Citations (1)
| Title |
|---|
| 基于机器视觉技术的六氟化硫密度继电器智能校验系统;李伟等;《仪表技术与传感器》;20160315(第03期);全文 * |
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| CN106405395A (en) | 2017-02-15 |
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Address after: 230000, No.397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province Applicant after: Super high voltage branch of State Grid Anhui Electric Power Co.,Ltd. Applicant after: State Grid Corporation of China Applicant after: ANHUI HUAZEKAI ELECTRICAL TECHNOLOGY Co.,Ltd. Address before: 230000, No.397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province Applicant before: Maintenance Company Of State Grid Anhui Electric Power Company Applicant before: State Grid Corporation of China Applicant before: ANHUI HUAZEKAI ELECTRICAL TECHNOLOGY Co.,Ltd. |
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