CN209085838U - The portable density device for checking electric relay of internal high-voltage storage cylinder - Google Patents
The portable density device for checking electric relay of internal high-voltage storage cylinder Download PDFInfo
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- CN209085838U CN209085838U CN201821856117.XU CN201821856117U CN209085838U CN 209085838 U CN209085838 U CN 209085838U CN 201821856117 U CN201821856117 U CN 201821856117U CN 209085838 U CN209085838 U CN 209085838U
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Abstract
The portable density device for checking electric relay of internal high-voltage storage cylinder, including cabinet, high-pressure gas cylinder, decompression venting valve, pressure converter, MCU Main Processing Unit, display unit, temperature detecting unit, pressure sensor and rechargeable battery are provided in cabinet, cabinet side is provided with charging indicator light, USB unloading interface, charging interface, test interface, pressure gauge, unidirectionally inflates self-sealing joint, exhaust outlet, test interface and signal transmission interface；The utility model is using the design scheme built in high-pressure gas cylinder, high-pressure gas cylinder is built in cabinet inside, external gas storage cylinder is no longer needed when verification, high pressure gas in internal high-voltage storage cylinder can be depressured as supply gas pressure needed for verification by the decompression venting valve being arranged in cabinet, the calibrating gas of required certain pressure is provided for verification, completes verifying work in time.The utility model not only simplifies the execute-in-place step of system, it is thus also avoided that the interference between various routes simplifies operating process.
Description
Technical field
The utility model belongs to instrument calibration technology field, and in particular to a kind of internal high-voltage storage cylinder it is portable
Density monitor calibration equipment.
Background technique
SF6As extremely superior insulation, arc-extinguishing medium, the high pressure being widely used in bulk of worldwide electricity industry is breaking
In device, GIS combination electric appliance, mutual inductor and transformer equipment.With the extension of equipment active time, SF in equipment6The quality of gas
Deterioration is unavoidable.And in order to keep SF6Good arc extinguishing, insulation performance, need SF6Gas keeps certain concentration, this is just needed
SF is monitored at any time6The concentration of gas.SF is widely used currently on the market6Density monitor, density meter, pressure gauge etc. are to SF6's
Purity is monitored and alarms, to monitor the substantially variation range of gas concentration.For the stable operation of high-voltage switch gear system,
Periodically measuring instrument is safeguarded and calibrated.
SF6Thus density relay checking instrument just generates, it is to being mounted on SF6Gas density is monitored on electrical equipment to become
The SF of change6The equipment of the instrument such as density monitor, density meter and pressure gauge progress periodic check.
There are also certain height, calibrations/maintenance away from ground for the installation site of density meter, pressure gauge in power industry scene
Personnel need operation of ascending a height, these usual calibrator (-ter) unit (instrument) figure all large and bulkies, this just considerably increases calibration/dimension
The work difficulty and risk of shield personnel.Moreover, the calibrating gas for needing certain pressure when measuring instrument verification again is commonly used,
This just needs external gas source to provide required detection gas to school instrument, and which not only adds the complexity of gas circuit, and
Calibration operation is also set to become cumbersome.
Utility model content
The utility model in order to solve shortcoming in the prior art, provide it is a kind of it is easy to operate, gas circuit is simple, safety
The portable density device for checking electric relay of highly reliable internal high-voltage storage cylinder.
In order to solve the above technical problems, the utility model adopts the following technical solution: internal high-voltage storage cylinder it is portable
Density monitor calibration equipment, including cabinet are provided with high-pressure gas cylinder, decompression venting valve, pressure converter, MCU in cabinet
Main control unit, display unit, temperature detecting unit, pressure sensor and rechargeable battery, cabinet side are provided with charging instruction
Lamp, charging interface, test interface, pressure gauge, unidirectionally inflates self-sealing joint, exhaust outlet, test interface and letter at USB unloading interface
Number coffret；
There are three interface, the gas source switch of high-pressure gas cylinder, first interface of decompression venting valve, pressures for decompression venting valve tool
Force transducer and test interface are sequentially connected in series by testing pipeline, and pressure gauge is connected on second interface of decompression venting valve,
Testing tube road is provided with locknut threeway between pressure converter and test mouth, and pressure sensor is connected to the of locknut threeway
On three interfaces；
MCU Main Processing Unit by cable respectively with display unit, USB unloading interface, temperature detecting unit, pressure alteration
Device, pressure gauge are connected with pressure sensor, and rechargeable battery is connect by conducting wire with MCU Main Processing Unit.
Unidirectional inflation self-sealing joint is connected on the third interface of decompression venting valve by tonifying Qi pipeline, and exhaust outlet passes through
The connection of the exhaust port of gas exhaust piping and pressure converter；
The knob B for being opened and closed main pipe rail and the knob A for being opened and closed test pipeline are provided on decompression venting valve.
Display unit is arranged on the preceding operating surface of cabinet, charging indicator light, USB unloading interface, signal transmission interface, survey
It tries mouth and the side of cabinet is arranged in charging interface；Cabinet is arranged in pressure gauge, exhaust outlet and unidirectional inflation self-sealing joint
The other side.
By adopting the above technical scheme, when verification, first test interface is connect with the input port of density monitor to be calibrated,
Ensure to seal tight；It is then turned on knob B(knob A and is in normally open), air-flow can be from internal high-voltage storage cylinder, successively through gas
Source switch, decompression venting valve, pressure converter, pressure sensor enter in density monitor to be calibrated from test interface.?
During verification, high pressure gas reaches the normal operating pressure of system after decompression venting valve depressurizes, and can provide stabilization
Pressure output.
High pressure gas reaches the normal operating pressure 0.9MPa of system, MCU Main Processing Unit after decompression venting valve depressurizes
Pressure converter is controlled by cable, so that it is exported goal pressure, while pressure sensor precise measurement density monitor verifies
Device output pressure feeds back to MCU Main Processing Unit, and MCU Main Processing Unit is adjusted by closed loop, so that the standard of output setting pressure
Gas.High-precision pressure sensor can gas pressure in accurate read test pipeline, and measurement result is precisely remembered
In systems, use can be read in record if needed.
Entire checking procedure, MCU Main Processing Unit can detect one by one according to the test point preset, record its testing result
And save, external memory can be exported to by way of USB interface can be reported, in case being checked day, being counted, analyzed.
It after built-in verification standard gas is finished, needs to inflate to high-pressure gas cylinder, opens the knob B(rotation on decompression venting valve
Button A is in normally open, but when inflating to high-pressure gas cylinder, pressure converter is unable to air inlet), the gas-charging connection of external air source
The unidirectional inflation self-sealing joint of connection, is charged to high-pressure gas cylinder for external air source via loading line by unidirectionally inflating self-sealing joint
In.After inflation, unidirectional inflation self-sealing joint is removed, the gas in high-pressure gas cylinder will provide for subsequent gas calibration to be filled
The gas source supplement of foot.
High-pressure gas cylinder is built in cabinet inside, school using the design scheme built in high-pressure gas cylinder by the utility model
External gas storage cylinder is no longer needed when testing, it is no longer necessary to which matched steel cylinder pressure reducing valve and air circuit connection line are arranged in cabinet
High pressure gas in internal high-voltage storage cylinder can be depressured the supply gas pressure required for verification by decompression venting valve, be provided for verification
The calibrating gas of required certain pressure, completes verifying work in time.The utility model not only simplifies the execute-in-place of system
Step, it is thus also avoided that the interference between various routes simplifies operating process.
In conclusion the utility model is the fully-automatic intelligent calibration equipment of a high-precision high reliability, MCU master control
Unit and pressure converter, pressure sensor form closed loop, can be automatically performed temperature compensation algorithm, be automatically performed non-20 DEG C
Under verification data with 20 DEG C at standard value conversion, entire checking procedure is automatically performed, and is not necessarily to manual intervention.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the control principle drawing of the utility model.
Specific embodiment
As depicted in figs. 1 and 2, the portable density device for checking electric relay of the internal high-voltage storage cylinder of the utility model,
Including cabinet (not shown), high-pressure gas cylinder 1, decompression venting valve 2, pressure converter 3, MCU master control are provided in cabinet
Unit 4, display unit 5, temperature detecting unit 7, pressure sensor 9 and rechargeable battery, cabinet side are provided with charging instruction
Lamp, USB unloading interface 6, charging interface, test interface 11, pressure gauge 8, unidirectional inflation self-sealing joint 14, exhaust outlet 15, test
Interface 11 and signal transmission interface；
There are three interfaces for the tool of decompression venting valve 2, and the gas source switch of high-pressure gas cylinder 1, first of decompression venting valve 2 connect
Mouthful, pressure converter 3 and test interface 11 be sequentially connected in series by testing pipeline 12, pressure gauge 8 is connected to the of decompression venting valve 2
On two interfaces, tests on pipeline 12 and be provided with locknut threeway 13, pressure sensor 9 between pressure converter 3 and test mouth
It is connected on the third interface of locknut threeway 13；
MCU Main Processing Unit 4 is become with display unit 5, USB unloading interface 6, temperature detecting unit 7, pressure respectively by cable
Parallel operation 3, pressure gauge 8 and pressure sensor 9 connect, and rechargeable battery is connect by conducting wire with MCU Main Processing Unit 4.
Unidirectional inflation self-sealing joint 14 is connected on the third interface of decompression venting valve 2 by tonifying Qi pipeline 10, is vented
Mouth 15 is connect by gas exhaust piping 16 with the exhaust port of pressure converter 3；
The knob B for being opened and closed main pipe rail and the knob A for being opened and closed test pipeline 12 are provided on decompression venting valve 2.
Display unit 5 is arranged on the preceding operating surface of cabinet, charging indicator light, USB unloading interface 6, signal transmission interface,
The side of cabinet is arranged in test interface 11 and charging interface；Pressure gauge 8, exhaust outlet 15 and unidirectional inflation self-sealing joint 14 are arranged
In the other side of cabinet.
Knob A in the utility model is in normally open, and knob B is only opened in open state.When verifying operation, first
Test interface 11 is connect with the input port of density monitor to be calibrated, it is ensured that sealing is tight；It is then turned on knob B(knob A
In normally open), air-flow can from internal high-voltage storage cylinder 1, successively through gas source switch, decompression venting valve 2, pressure converter 3,
Pressure sensor 9 enters in density monitor to be calibrated from test interface 11.During verification, high pressure gas passes through
After decompression venting valve 2 depressurizes, reach the normal operating pressure of system, and the air-flow output of steady pressure is provided.
High pressure gas reaches the normal operating pressure 0.9MPa of system, MCU master control list after the decompression of decompression venting valve 2
Member 4 controls pressure converter 3 by cable, it is made to export goal pressure, while 9 precise measurement density monitor of pressure sensor
Calibration equipment output pressure feeds back to MCU Main Processing Unit 4, and MCU Main Processing Unit 4 is adjusted by closed loop, so that output setting pressure
Calibrating gas.High-precision pressure sensor 9 can gas pressure in accurate read test pipeline 12, and will measurement knot
Fruit precisely records in systems, and use can be read if needed.
Entire checking procedure, MCU Main Processing Unit 4 can detect one by one according to the test point preset, and record its detection knot
Fruit simultaneously saves, and exports to external memory by way of USB interface can be reported, in case being checked day, being counted, analyzed.
After built-in verification standard gas is finished, needs to inflate to high-pressure gas cylinder 1, open the knob B on decompression venting valve 2
(knob A is in normally open, but when inflating to high-pressure gas cylinder 1, pressure converter is unable to air inlet), the inflation of external air source
External air source, is charged to by unidirectionally inflating self-sealing joint 14 via loading line 10 by the unidirectional inflation self-sealing joint 14 of connector connection
In high-pressure gas cylinder 1.After inflation, unidirectional inflation self-sealing joint 14 is removed, the gas in high-pressure gas cylinder 1 will be subsequent
Gas calibration provides sufficient gas source supplement.
High-pressure gas cylinder 1 is built in cabinet inside using the design scheme built in high-pressure gas cylinder 1 by the utility model,
External gas storage cylinder is no longer needed when verification, it is no longer necessary to which matched steel cylinder pressure reducing valve and air circuit connection line are arranged in cabinet
Decompression venting valve 2 can by the high pressure gas in internal high-voltage storage cylinder 1 be depressured for verification needed for supply gas pressure, for verification
The calibrating gas of certain pressure needed for providing, completes verifying work in time.The utility model not only simplifies the scene of system
Operating procedure, it is thus also avoided that the interference between various routes simplifies operating process.
The present embodiment not makes any form of restriction the shape of the utility model, material, structure etc., all foundations
The technical essence of the utility model any simple modification, equivalent change and modification to the above embodiments, belong to this reality
With the protection scope of new technique scheme.
Claims (3)
1. the portable density device for checking electric relay of internal high-voltage storage cylinder, it is characterised in that: including cabinet, be arranged in cabinet
There are high-pressure gas cylinder, decompression venting valve, pressure converter, MCU Main Processing Unit, display unit, temperature detecting unit, pressure sensing
Device and rechargeable battery, cabinet side be provided with charging indicator light, USB unloading interface, charging interface, test interface, pressure gauge,
Unidirectional inflation self-sealing joint, exhaust outlet, test interface and signal transmission interface；
There are three interface, the gas source switch of high-pressure gas cylinder, first interface of decompression venting valve, pressure to become for decompression venting valve tool
Parallel operation and test interface are sequentially connected in series by testing pipeline, and pressure gauge is connected on second interface of decompression venting valve, test
Locknut threeway is provided on pipeline between pressure converter and test mouth, pressure sensor is connected to the third of locknut threeway
On interface；
MCU Main Processing Unit by cable respectively with display unit, USB unloading interface, temperature detecting unit, pressure converter, pressure
Power table is connected with pressure sensor, and rechargeable battery is connect by conducting wire with MCU Main Processing Unit.
2. the portable density device for checking electric relay of internal high-voltage storage cylinder according to claim 1, it is characterised in that:
Unidirectional inflation self-sealing joint is connected on the third interface of decompression venting valve by tonifying Qi pipeline, and exhaust outlet passes through gas exhaust piping
It is connect with the exhaust port of pressure converter；
The knob B for being opened and closed main pipe rail and the knob A for being opened and closed test pipeline are provided on decompression venting valve.
3. the portable density device for checking electric relay of internal high-voltage storage cylinder according to claim 1, it is characterised in that:
Display unit is arranged on the preceding operating surface of cabinet, charging indicator light, USB unloading interface, signal transmission interface, test interface and
The side of cabinet is arranged in charging interface；The other side of cabinet is arranged in pressure gauge, exhaust outlet and unidirectional inflation self-sealing joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821856117.XU CN209085838U (en) | 2018-11-12 | 2018-11-12 | The portable density device for checking electric relay of internal high-voltage storage cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821856117.XU CN209085838U (en) | 2018-11-12 | 2018-11-12 | The portable density device for checking electric relay of internal high-voltage storage cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209085838U true CN209085838U (en) | 2019-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821856117.XU Active CN209085838U (en) | 2018-11-12 | 2018-11-12 | The portable density device for checking electric relay of internal high-voltage storage cylinder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440982A (en) * | 2019-09-16 | 2019-11-12 | 大唐半导体科技有限公司 | A kind of full-automatic control system for the calibration of air compressor machine sensor parameters |
| CN110542852A (en) * | 2019-09-04 | 2019-12-06 | 上海乐研电气有限公司 | transformation method of gas density relay |
| CN111649869A (en) * | 2020-06-23 | 2020-09-11 | 西安航天计量测试研究所 | Non-contact pressure measuring method and system based on strain and temperature sensors |
-
2018
- 2018-11-12 CN CN201821856117.XU patent/CN209085838U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542852A (en) * | 2019-09-04 | 2019-12-06 | 上海乐研电气有限公司 | transformation method of gas density relay |
| CN110440982A (en) * | 2019-09-16 | 2019-11-12 | 大唐半导体科技有限公司 | A kind of full-automatic control system for the calibration of air compressor machine sensor parameters |
| CN111649869A (en) * | 2020-06-23 | 2020-09-11 | 西安航天计量测试研究所 | Non-contact pressure measuring method and system based on strain and temperature sensors |
| CN111649869B (en) * | 2020-06-23 | 2021-10-15 | 西安航天计量测试研究所 | Non-contact pressure measuring method and system based on strain and temperature sensors |
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