CN104315286A - Special tee for test of sulfur hexafluoride gas and use method of tee - Google Patents
Special tee for test of sulfur hexafluoride gas and use method of tee Download PDFInfo
- Publication number
- CN104315286A CN104315286A CN201410550755.9A CN201410550755A CN104315286A CN 104315286 A CN104315286 A CN 104315286A CN 201410550755 A CN201410550755 A CN 201410550755A CN 104315286 A CN104315286 A CN 104315286A
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- Prior art keywords
- sulfur hexafluoride
- test
- gas
- testing apparatus
- crossover sub
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 112
- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 108
- 238000012360 testing method Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000000354 decomposition reaction Methods 0.000 claims description 7
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 43
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to a special tee for the test of sulfur hexafluoride gas. The tee comprises a hollow body; the hollow body is provided with one air inlet pipe and two air outlet pipes; the end parts of the air inlet pipe and the air outlet pipes are provided with detachable adapters; the hollow body is also provided with a releasing valve; the use method comprises the steps of 1, selecting the adapters; 2, connecting electrical equipment filled with the sulfur hexafluoride gas and used sulfur hexafluoride gas brackish water and decomposer test equipment; 3, testing; 4, performing gas releasing operation after the test is finished; 5, wholly transferring to the next test point for performing the next around test. Compared with the prior art, the special tee for test of the sulfur hexafluoride gas and the use method of the tee have the beneficial effects that 1, the brackish water test and decomposer test of the sulfur hexafluoride gas can be finished at the same time; 2, the times for assembling and disassembling the adapters are reduced, and the influence to the sealing effect of the equipment due to multiple times of assembly and disassembly is avoided; 3, the work efficiency is improved, and the labor intensity of workers is relieved; 4, data is not influenced by residual gas, the test precision is improved and the harm to staff caused by overlarge gas pressure is prevented.
Description
Technical field
The present invention relates to a kind of sulfur hexafluoride gas testing auxiliary device, particularly relate to a kind of sulfur hexafluoride gas test special three-way and using method thereof.
Background technique
Pure sulfur hexafluoride gas is a kind of colourless, odorless, nontoxic, stable chemical performance, the gas that can not burn, and has good electrical insulation properties and the arc extinction performance of excellence, without plurality of advantages such as fire perils.Its electric strength is 2.5 times of nitrogen under same pressure, and breakdown voltage is 2.5 times of air, and arc extinguishing ability is 100 times of air, is a kind of ultrahigh pressure insulating dielectric materials of new generation be better than between air and insulating oil.Sulfur hexafluoride gas be widely used in electronics, electric field as: circuit breaker, high-tension transformer, sealing gland close combined capacitor, hv transmission line, mutual inductor etc., and being used as the insulating material of high-voltage switch gear, high-power transformer, high voltage cable and gas, it is typically applied is be used as gas-insulated in the high-tension switch cabinet of the power transmission and transformation institute, power plant etc. of power supply department.
In actual use, if the water content of the sulfur hexafluoride gas in equipment air chamber is too much, following harm can be produced: 1) easily at insulating material surface condensation, cause insulating properties to decline, time serious, flashover breakdown occurs; The acidic materials generated under arcing have severe corrosive, have corrosive action, shorten life of equipment to solid organic material and metal; 2) purity of the compounds affect sulfur hexafluoride gas produced under arcing, arc extinguishing ability will be influenced; 3) under arcing, generate poisonous and harmful substance, directly threaten health.Therefore, must keeping under strict supervision close inspection and control to the water content of sulfur hexafluoride gas.
Research shows, the partial discharge that different insulative defect causes can produce different sulphur hexafluoride decomposition of chemical compounds, the composition of corresponding analyte, content and produce speed etc. and also there are differences, the component therefore by analyzing sulfur hexafluoride decomposer comes the type of judgment device fault type and insulation defect, character, degree and development trend.Therefore, be also an important job to the test of sulfur hexafluoride decomposer.
In current on-the-spot test work, the test of sulfur hexafluoride micro water test Sum decomposition thing is completed by two cover special instruments respectively, in use, two cover appliance requires successively connect the sulfur hexafluoride air cell interface of same electrical equipment, complete two tests and need dismounting altogether, tightening test instrument joint 4 times, not only add workload to maintainer, cause the sulfur hexafluoride air cell interface of equipment to wear and tear owing to repeatedly loading and unloading simultaneously, loosen, even cause and be filled with the poorly sealed of sulfur hexafluoride electrical equipment, equipment is caused to leak gas, thus mains supply reliability is caused have a strong impact on.
Summary of the invention
The invention provides a kind of sulfur hexafluoride gas test special three-way, by crossover sub connect survey and be filled with sulfur hexafluoride electrical equipment and testing apparatus, the test of sulfur hexafluoride micro water test Sum decomposition thing can be completed simultaneously, improve testing efficiency, minimizing equipment air chamber interface weares and teares, structure is simple, easy to use; Invention also provides the using method of this threeway.
In order to achieve the above object, the present invention realizes by the following technical solutions:
A kind of sulfur hexafluoride gas test special three-way, comprise hollow body, described hollow body is provided with a suction tude and two steam outlet pipes, and suction tude and steam outlet pipe end are equipped with detachable crossover sub, and hollow body is also provided with gas bleeder valve.
Described hollow body adopts chromium-austenitic stainless steel or PVC＝polyvinyl chloride material to make.
The described suction tude crossover sub the other end connect survey the air chamber interface being filled with sulfur hexafluoride gas electrical equipment, there is the joint form and specification that adapt with connected device air chamber interface.
The described steam outlet pipe crossover sub the other end connects sulfur hexafluoride micro water testing apparatus and sulfur hexafluoride decomposer testing apparatus respectively, and has the joint form and specification that adapt with connected device.
A using method for sulfur hexafluoride gas test special three-way, comprises the steps:
1) according to survey the crossover sub that the air chamber interface shape that is filled with sulfur hexafluoride electrical equipment and specification select threeway suction tude, select the crossover sub of threeway steam outlet pipe according to the joint form of sulfur hexafluoride micro water testing apparatus used and sulfur hexafluoride decomposer testing apparatus and specification; Crossover sub is respectively installed on threeway suction tude and threeway steam outlet pipe, and confirms firm and reliable connection;
2) by the suction tude crossover sub the other end with survey and be filled with sulfur hexafluoride electrical equipment air chamber interface and be connected, the other end of steam outlet pipe crossover sub is connected with the joint of corresponding sulfur hexafluoride micro water testing apparatus and sulfur hexafluoride decomposer testing apparatus respectively, and confirms firm and reliable connection;
3) open respectively survey the flow control valve being filled with sulfur hexafluoride electrical equipment, sulfur hexafluoride micro water testing apparatus and sulfur hexafluoride decomposer testing apparatus, carry out the micro-water test Sum decomposition thing test of sulphur hexafluoride simultaneously;
4) after once test terminates, respectively close survey the flow control valve being filled with sulfur hexafluoride electrical equipment, sulfur hexafluoride micro water testing apparatus and sulfur hexafluoride decomposer testing apparatus, open threeway gas bleeder valve residual sulfur hexafluoride gas is discharged by leakage port, carry out test next time or test end as required;
5) place be filled with sulfur hexafluoride electrical equipment test terminate after, by threeway suction tude crossover sub from survey and be filled with sulfur hexafluoride electrical equipment and unload, by threeway and testing apparatus global transfer to next test point, determining whether use threeway suction tude crossover sub instead according to being filled with sulfur hexafluoride electrical equipment air chamber interface shape and specification accordingly, carrying out a new round after installing suction tude crossover sub and testing.
Compared with prior art, the invention has the beneficial effects as follows:
1) threeway suction tude and steam outlet pipe respectively by crossover sub be connected survey and be filled with sulfur hexafluoride electrical equipment and test equipment, can complete the test of sulfur hexafluoride micro water test Sum decomposition thing, structure is simple, easy to use simultaneously;
2) after once test terminates, only need by threeway suction tude joint be filled with sulfur hexafluoride electrical equipment and be separated rear global transfer and can carry out second test to next test point, reduce the number of times of handling joint, avoid and affect equipment sealing effect owing to repeatedly loading and unloading;
3) increase work efficiency, alleviate intensity of workers;
4) threeway adds gas bleeder valve, the impact of residual gas when ensureing that each survey data can not be subject to measuring last time, improve the precision of sulfur hexafluoride gas test, and because gas pressure is excessive, personnel are damaged when can prevent dismounting joint.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of sulfur hexafluoride gas test special three-way of the present invention.
Fig. 2 is the using state schematic diagram of a kind of sulfur hexafluoride gas test special three-way of the present invention.
In figure: 1. hollow body 2. suction tude 3. suction tude crossover sub 4. steam outlet pipe 5. steam outlet pipe crossover sub 6. gas bleeder valve 7. leakage port 8. is filled with sulfur hexafluoride electrical equipment 9. sulfur hexafluoride micro water testing apparatus 10. sulfur hexafluoride decomposer testing apparatus
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
See Fig. 1, it is the structural representation of a kind of sulfur hexafluoride gas test special three-way of the present invention, a kind of sulfur hexafluoride gas test special three-way of the present invention, comprise hollow body 1, described hollow body 1 is provided with a suction tude 2 and two steam outlet pipes 4, suction tude 2 and steam outlet pipe 4 end are equipped with detachable crossover sub, and hollow body 1 is also provided with gas bleeder valve 6.
Described hollow body 1 adopts chromium-austenitic stainless steel or PVC＝polyvinyl chloride material to make.
Described suction tude crossover sub 3 the other end connect survey the air chamber interface being filled with sulfur hexafluoride electrical equipment 8, there is the joint form and specification that adapt with connected device air chamber interface.
Described steam outlet pipe crossover sub 5 the other end connects sulfur hexafluoride micro water testing apparatus 9 and sulfur hexafluoride decomposer testing apparatus 10 respectively, and has the joint form and specification that adapt with connected device.
Seeing Fig. 2, is the using state schematic diagram of a kind of sulfur hexafluoride gas test special three-way of the present invention.The using method of a kind of sulfur hexafluoride gas test of the present invention special three-way, comprises the steps:
1) according to survey the crossover sub 3 that the air chamber interface shape that is filled with sulfur hexafluoride electrical equipment 8 and specification select threeway suction tude, select the crossover sub 5 of threeway steam outlet pipe according to the joint form of sulfur hexafluoride micro water testing apparatus 9 used and sulfur hexafluoride decomposer testing apparatus 10 and specification; Crossover sub 3,5 is respectively installed on threeway suction tude 2 and threeway steam outlet pipe 4, and confirms firm and reliable connection;
2) by suction tude crossover sub 3 the other end with survey and be filled with sulfur hexafluoride electrical equipment 8 air chamber interface and be connected, the other end of steam outlet pipe crossover sub 5 is connected with the joint of corresponding sulfur hexafluoride micro water testing apparatus 9 and sulfur hexafluoride decomposer testing apparatus 10 respectively, and confirms firm and reliable connection;
3) open respectively survey the flow control valve being filled with sulfur hexafluoride electrical equipment 8, sulfur hexafluoride micro water testing apparatus 9 and sulfur hexafluoride decomposer testing apparatus 10, carry out the micro-water test Sum decomposition thing test of sulphur hexafluoride simultaneously;
4) after once test terminates, respectively close survey the flow control valve being filled with sulfur hexafluoride electrical equipment 8, sulfur hexafluoride micro water testing apparatus 9 and sulfur hexafluoride decomposer testing apparatus 10, open threeway gas bleeder valve 6 residual sulfur hexafluoride gas is discharged by leakage port 7, carry out test next time or test end as required;
5) place be filled with sulfur hexafluoride electrical equipment 8 test terminate after, by threeway suction tude crossover sub 3 from survey and be filled with sulfur hexafluoride electrical equipment 8 and unload, by threeway and testing apparatus 9,10 global transfer to next test point, determining whether use threeway suction tude crossover sub 3 instead according to being filled with sulfur hexafluoride electrical equipment 8 air chamber interface shape and specification accordingly, carrying out a new round after installing suction tude crossover sub 3 and testing.
In the present invention, the suction tude 2 of threeway has installed dismountable crossover sub 3, one end is processed as same normalized form and is connected with threeway suction tude 2, one end is processed into various ways and specification as required, convenient and different manufacturers is produced, and has the sulfur hexafluoride electrical equipment 8 that is filled with that is multi-form, specification air chamber interface and completes rapid abutting joint.
Two steam outlet pipe joints 4 of threeway are also provided with detachable crossover sub 5, and the air input joint for the sulfur hexafluoride micro water testing apparatus 9 of producing with different manufacturers and sulfur hexafluoride decomposer tester equipment 10 is connected fast.
In threeway center portion, gas bleeder valve 6 is housed, gas bleeder valve 6 is provided with leakage port 7.After each test job terminates, in threeway, all can remain a part of sulfur hexafluoride gas, maintainer by threeway be filled with sulfur hexafluoride electrical equipment 8 air chamber be separated time, gas residual voltage can bring unsafe factor to personnel; In addition, due to the existence of residual gas, when carrying out repeatedly or many groups are tested, residual gas when last (group) tests will affect next time the precision of (group) data, can, after each (group) sulfur hexafluoride gas test terminates, by gas bleeder valve 6, residual sulfur hexafluoride gas be discharged by leakage port 7.The sulfur hexafluoride gas dedicated container of discharging reclaims, and avoids being discharged in air, or damages staff.
The hollow body 1 of threeway have employed chromium-austenitic stainless steel or the pvc material making of lighter weight, can not get rusty or react with chemical composition in gas, also facilitating staff to carry out transporting and loading and unloading simultaneously.
The above is only basic principle of the present invention, not imposes any restrictions the present invention, and the present invention of every foundation carries out equivalent variations and modification to it, all within the category of the art of this patent protection scheme.
Claims (5)
1. a sulfur hexafluoride gas test special three-way, it is characterized in that, comprise hollow body, described hollow body is provided with a suction tude and two steam outlet pipes, and suction tude and steam outlet pipe end are equipped with detachable crossover sub, and hollow body is also provided with gas bleeder valve.
2. a kind of sulfur hexafluoride gas test special three-way according to claim 1, it is characterized in that, described hollow body adopts chromium-austenitic stainless steel or PVC＝polyvinyl chloride material to make.
3. a kind of sulfur hexafluoride gas test special three-way according to claim 1, it is characterized in that, the described suction tude crossover sub the other end connect survey the air chamber interface being filled with sulfur hexafluoride gas electrical equipment, there is the joint form and specification that adapt with connected device air chamber interface.
4. a kind of sulfur hexafluoride gas according to claim 1 detects special three-way, it is characterized in that, the described steam outlet pipe crossover sub the other end connects sulfur hexafluoride micro water testing apparatus and sulfur hexafluoride decomposer testing apparatus respectively, and has the joint form and specification that adapt with connected device.
5. the using method of a kind of sulfur hexafluoride gas test special three-way according to claim 1, is characterized in that, comprise the steps:
1) according to survey the crossover sub that the air chamber interface shape that is filled with sulfur hexafluoride electrical equipment and specification select threeway suction tude, select the crossover sub of threeway steam outlet pipe according to the joint form of sulfur hexafluoride micro water testing apparatus used and sulfur hexafluoride decomposer testing apparatus and specification; Crossover sub is respectively installed on threeway suction tude and threeway steam outlet pipe, and confirms firm and reliable connection;
2) by the suction tude crossover sub the other end with survey and be filled with sulfur hexafluoride electrical equipment air chamber interface and be connected, the other end of steam outlet pipe crossover sub is connected with the joint of corresponding sulfur hexafluoride micro water testing apparatus and sulfur hexafluoride decomposer testing apparatus respectively, and confirms firm and reliable connection;
3) open respectively survey the flow control valve being filled with sulfur hexafluoride electrical equipment, sulfur hexafluoride micro water testing apparatus and sulfur hexafluoride decomposer testing apparatus, carry out the micro-water test Sum decomposition thing test of sulphur hexafluoride simultaneously;
4) after once test terminates, respectively close survey the flow control valve being filled with sulfur hexafluoride electrical equipment, sulfur hexafluoride micro water testing apparatus and sulfur hexafluoride decomposer testing apparatus, open threeway gas bleeder valve residual sulfur hexafluoride gas is discharged by leakage port, carry out test next time or test end as required;
5) place be filled with sulfur hexafluoride electrical equipment test terminate after, by threeway suction tude crossover sub from survey and be filled with sulfur hexafluoride electrical equipment and unload, by threeway and testing apparatus global transfer to next test point, determining whether use threeway suction tude crossover sub instead according to being filled with sulfur hexafluoride electrical equipment air chamber interface shape and specification accordingly, carrying out a new round after installing suction tude crossover sub and testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410550755.9A CN104315286A (en) | 2014-10-17 | 2014-10-17 | Special tee for test of sulfur hexafluoride gas and use method of tee |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410550755.9A CN104315286A (en) | 2014-10-17 | 2014-10-17 | Special tee for test of sulfur hexafluoride gas and use method of tee |
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| Publication Number | Publication Date |
|---|---|
| CN104315286A true CN104315286A (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410550755.9A Pending CN104315286A (en) | 2014-10-17 | 2014-10-17 | Special tee for test of sulfur hexafluoride gas and use method of tee |
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| CN (1) | CN104315286A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508788A (en) * | 2015-11-30 | 2016-04-20 | 国家电网公司 | Gas channel connecting component and gas channel connecting device |
| CN105807004A (en) * | 2016-04-25 | 2016-07-27 | 国网黑龙江省电力有限公司哈尔滨供电公司 | Method for detecting SF6 decomposition product and checking SF6 density relay |
| CN107013778A (en) * | 2017-05-18 | 2017-08-04 | 高国梁 | A kind of three-way pipeline tested based on micro- water and component |
| CN109000061A (en) * | 2018-08-21 | 2018-12-14 | 国网福建省电力有限公司检修分公司 | It is a kind of to take gas connector for the general of SF6 gas test |
| CN109470819A (en) * | 2018-08-20 | 2019-03-15 | 国家电网有限公司 | A kind of six exchange devices of SF6 gas detection analysis |
| CN112595810A (en) * | 2020-10-31 | 2021-04-02 | 温州职业技术学院 | Special switching connecting device of little water purity test instrument of SF6 |
-
2014
- 2014-10-17 CN CN201410550755.9A patent/CN104315286A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508788A (en) * | 2015-11-30 | 2016-04-20 | 国家电网公司 | Gas channel connecting component and gas channel connecting device |
| CN105807004A (en) * | 2016-04-25 | 2016-07-27 | 国网黑龙江省电力有限公司哈尔滨供电公司 | Method for detecting SF6 decomposition product and checking SF6 density relay |
| CN107013778A (en) * | 2017-05-18 | 2017-08-04 | 高国梁 | A kind of three-way pipeline tested based on micro- water and component |
| CN109470819A (en) * | 2018-08-20 | 2019-03-15 | 国家电网有限公司 | A kind of six exchange devices of SF6 gas detection analysis |
| CN109470819B (en) * | 2018-08-20 | 2021-06-08 | 国家电网有限公司 | SF6 gas detection and analysis six-way device |
| CN109000061A (en) * | 2018-08-21 | 2018-12-14 | 国网福建省电力有限公司检修分公司 | It is a kind of to take gas connector for the general of SF6 gas test |
| CN109000061B (en) * | 2018-08-21 | 2020-08-14 | 国网福建省电力有限公司检修分公司 | A general joint of getting gas for SF6 gas test |
| CN112595810A (en) * | 2020-10-31 | 2021-04-02 | 温州职业技术学院 | Special switching connecting device of little water purity test instrument of SF6 |
| CN112595810B (en) * | 2020-10-31 | 2022-11-29 | 温州职业技术学院 | Special switching connecting device of little water purity test instrument of SF6 |
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Legal Events
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| C06 | Publication | ||
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Application publication date: 20150128 |