CN105758589A - Platform for checking double-channel SF6 infrared imaging leak detector - Google Patents

Platform for checking double-channel SF6 infrared imaging leak detector Download PDF

Info

Publication number
CN105758589A
CN105758589A CN201610319956.7A CN201610319956A CN105758589A CN 105758589 A CN105758589 A CN 105758589A CN 201610319956 A CN201610319956 A CN 201610319956A CN 105758589 A CN105758589 A CN 105758589A
Authority
CN
China
Prior art keywords
gas
electromagnetic valve
cylinder
gas circuit
surge tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610319956.7A
Other languages
Chinese (zh)
Inventor
祁炯
赵跃
苏镇西
薛冰
袁小芳
王海飞
宋玉梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Anhui Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Anhui Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Anhui Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201610319956.7A priority Critical patent/CN105758589A/en
Publication of CN105758589A publication Critical patent/CN105758589A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/38Investigating fluid-tightness of structures by using light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention provides a platform for checking a double-channel SF6 infrared imaging leak detector. The platform comprises an SF6 gas bottle, a linear stepping motor, an air cylinder, a buffer tank and electromagnetic valves F1-F4 arranged in gas circuits and is characterized in that the precise air cylinder is adopted, and the control end of the precise air cylinder is connected with the output end of the linear stepping motor; the output end of the SF6 gas bottle is connected with the input end of the buffer tank through the gas circuit provided with the electromagnetic valve F1 and the electromagnetic valve F4 and is connected with the output end of the air cylinder through the gas circuit provided with the electromagnetic valve F1 and the electromagnetic valve F2, and the output end of the air cylinder is connected with a gas outlet needle through the gas circuit provided with the electromagnetic valve F3; multiple gas circuits provided with control valves are arranged above the buffer tank, capillary micropore needles different in diameter are arranged at the tail ends of all the gas circuits respectively, and a constant temperature plate at the temperature of 50 DEG C is arranged 5 cm away from the gas outlet needle and the capillary micropore needles. The gas outlet needle and the capillary micropore needles different in pore diameter are adopted to form a double-channel checking system, the constant temperature plate at the temperature of 50 DEG C is adopted as a background heat source, and therefore the platform is not affected by checking environment temperature and is good in working performance.

Description

Dual-channel type SF6Infrared imaging leak detector verification platform
Technical field
The present invention provides a kind of Dual-channel type SF6Infrared imaging leak detector verification platform, belongs to SF6Infrared imaging leak detector calibration technology field.
Background technology
SF6Electrical equipment has the advantages such as reliable, floor space is little and maintenance workload is few, uses in a large number in power industry.It is subject to SF6The impact of the factor such as loss, SF in electrical equipment product design ability, manufacturing technology level, installation quality and transportation6Easily there is leakage problem in electrical equipment, will result in many-sided harm: SF6Gas leakage causes that electrical equipment arc extinguishing ability declines, and threatens SF6Breaker safe runs;SF6Gas leakage need to electrical equipment QI invigorating to rated pressure, and this operation need to electrical equipment power-off, and operating process is complicated.Therefore, SF is regularly carried out6Leakage inspection work becomes the important process of daily power industry O&M.
Properly functioning for not affecting electrical equipment, currently mainly adopt SF6Infrared imaging leak detector is to SF6Charged fixed point leak detection work carried out by electrical equipment, therefore, needs regularly SF6Infrared imaging leak detector verifies.Currently employed single-point standard leak source is to SF6Infrared imaging leak detector verifies, and standard leak source flux is by mass flowmenter control, and flow-control ranges for 0.06~0.2mL/min, SF6Gas flows to environment through injection needle and carrys out the leakage of simulated field point-like.When actual checking procedure finds ambient temperature lower than 10 DEG C, low discharge SF6Gas and air are to infrared Absorption similar intensity, SF6Infrared imaging leak detector cannot detect low discharge SF6Gas, and single-point standard leak source verification SF6Infrared imaging leak detector work efficiency is relatively low, it is impossible to meet daily verification business demand, therefore, for overcoming ambient temperature to simulation low discharge SF6The impact of gas leakage, improves existing tester efficiency, is badly in need of a kind of New type of S F6Infrared imaging leak detector calibration technology.
Summary of the invention
It is an object of the invention to provide and a kind of can overcome drawbacks described above, not influenced by ambient temperature, the verification high Dual-channel type SF of efficiency6Infrared imaging leak detector verification platform.Its technical scheme is:
A kind of Dual-channel type SF6Infrared imaging leak detector verification platform, including SF6Gas cylinder, linear stepping motor, cylinder, the surge tank that heat-insulation layer is set and the electromagnetic valve F being arranged in gas circuit1~F4, the piston rod of the output termination cylinder of linear stepping motor, it is characterised in that: cylinder adopts accurate cylinder;SF6The outfan of gas cylinder is respectively through being provided with electromagnetic valve F1With electromagnetic valve F4Gas circuit connect the input of surge tank, through being provided with electromagnetic valve F1With electromagnetic valve F2Gas circuit connect the outfan of cylinder, the outfan of cylinder is also through being provided with electromagnetic valve F3Gas circuit pick out air tube head;Surge tank is provided with pressure transducer and temperature sensor, surge tank be arranged over multiple gas circuit with controlling valve, the end of each gas circuit is provided with the diameter capillary micropore syringe needle at 0.1~0.4mm, and the diameter of each capillary micropore syringe needle is not etc.;Syringe needle is given vent to anger and capillary micropore syringe needle 5cm place sets one 50 DEG C of temperature-constant plates in distance;The group relation of joining of pressure transducer and capillary micropore needle aperture is:Wherein: Q is quantity of gas leakage, r is capillary micropore needle aperture, P1For surge tank pressure, PatmFor atmospheric pressure, T is thermodynamic temperature in surge tank, and M is SF6Molecular weight gas.
Described channel-type SF6Infrared imaging leak detector verification platform, SF6The output gas circuit of gas cylinder is provided with pressure maintaining valve.
The present invention compared with prior art, has an advantage in that:
1, this device adopt 50 DEG C of temperature-constant plate thermals source as a setting, can be prevented effectively from relatively low ambient temperature to simulation low discharge SF6The impact of gas leakage.
2, this patent adopts syringe needle and the multiple aperture capillary micropore syringe needle composition Dual-channel type SF not etc. that gives vent to anger6Infrared imaging leak detector calibration technology, it is simple to control flow, can effectively promote verification efficiency, meet production verification demand.
3, this patent adopts the quantitative manner precision that accurate cylinder, pressure transducer and capillary micropore needle aperture combine to control SF6Quantity of gas leakage Q mathematical model (formula 1) simulated field point-like leaks, and has more high control precision than traditional approach.
Wherein: Q is quantity of gas leakage, r is capillary micropore needle aperture, P1For surge tank pressure, PatmFor atmospheric pressure, T is thermodynamic temperature in surge tank, and M is SF6Molecular weight gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1, SF6Gas cylinder 2, linear stepping motor 3, cylinder 4, heat-insulation layer 5, surge tank 6, syringe needle 7 of giving vent to anger, control valve 8, capillary micropore syringe needle 9, temperature-constant plate 10, pressure maintaining valve 11, pressure transducer 12, temperature sensor F1~F4, electromagnetic valve
Detailed description of the invention
By the following examples present disclosure is illustrated in further detail.In the embodiment shown in fig. 1: cylinder 3 adopts accurate cylinder, the piston rod of the output termination cylinder 3 of linear stepping motor 2.SF6The outfan of gas cylinder 1 is respectively through being provided with electromagnetic valve F1With electromagnetic valve F4Gas circuit connect the input of surge tank 5, through being provided with electromagnetic valve F1With electromagnetic valve F2Gas circuit connect the outfan of cylinder 3, the outfan of cylinder 3 is also through being provided with electromagnetic valve F3Gas circuit pick out air tube head 6.Surge tank 5 is provided with pressure transducer 11, surge tank 5 be arranged over 4 gas circuits with controlling valve 7, capillary micropore syringe needle 8 diameter that 4 gas circuit ends are provided with is followed successively by 0.1mm, 0.2mm, 0.3mm and 0.4mm;Syringe needle 6 is given vent to anger and capillary micropore syringe needle 85cm place of giving vent to anger sets one 50 DEG C of temperature-constant plates 9 in distance.

Claims (2)

1. a Dual-channel type SF6Infrared imaging leak detector verification platform, including SF6Gas cylinder (1), linear stepping motor (2), cylinder (3), the surge tank (5) that heat-insulation layer (4) are set and the electromagnetic valve F being arranged in gas circuit1~F4, the piston rod of output termination cylinder (3) of linear stepping motor (2), it is characterised in that: cylinder (3) adopts accurate cylinder (3);SF6The outfan of gas cylinder (1) is respectively through being provided with electromagnetic valve F1With electromagnetic valve F4Gas circuit connect the input of surge tank (5), through being provided with electromagnetic valve F1With electromagnetic valve F2Gas circuit connect the outfan of cylinder (3), the outfan of cylinder (3) is also through being provided with electromagnetic valve F3Gas circuit pick out air tube head (6);Surge tank (5) is provided with pressure transducer (11) and temperature sensor (12), surge tank (5) be arranged over multiple with control valve (7) gas circuit, the end of each gas circuit is provided with diameter capillary micropore syringe needle (8) at 0.1~0.4mm, and the diameter of each capillary micropore syringe needle (8) is not etc.;Giving vent to anger syringe needle (6) and capillary micropore syringe needle (8) 5cm place sets one 50 DEG C of temperature-constant plates (9) in distance, the group relation of joining in pressure transducer (11) and capillary micropore syringe needle (8) aperture is:Wherein: Q is quantity of gas leakage, r is capillary micropore syringe needle (8) aperture, P1For surge tank (5) pressure, PatmFor atmospheric pressure, T is surge tank (5) interior thermodynamic temperature, and M is SF6Molecular weight gas.
2. channel-type SF according to claim 16Infrared imaging leak detector verification platform, it is characterised in that: SF6The output gas circuit of gas cylinder (1) is provided with pressure maintaining valve (10).
CN201610319956.7A 2016-05-13 2016-05-13 Platform for checking double-channel SF6 infrared imaging leak detector Pending CN105758589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610319956.7A CN105758589A (en) 2016-05-13 2016-05-13 Platform for checking double-channel SF6 infrared imaging leak detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610319956.7A CN105758589A (en) 2016-05-13 2016-05-13 Platform for checking double-channel SF6 infrared imaging leak detector

Publications (1)

Publication Number Publication Date
CN105758589A true CN105758589A (en) 2016-07-13

Family

ID=56324061

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610319956.7A Pending CN105758589A (en) 2016-05-13 2016-05-13 Platform for checking double-channel SF6 infrared imaging leak detector

Country Status (1)

Country Link
CN (1) CN105758589A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107741405A (en) * 2017-10-02 2018-02-27 国网山西省电力公司电力科学研究院 Portable SF6Infrared leak detector verification gas generating unit and method for generation
CN110411663A (en) * 2019-08-21 2019-11-05 广西电网有限责任公司电力科学研究院 A kind of SF6Micro constant pressure Leaking Simulation devices and methods therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5163315A (en) * 1990-07-10 1992-11-17 Daikin Industries, Ltd. Leak detecting method for vessels
CN202533241U (en) * 2011-08-17 2012-11-14 青海电力科学试验研究院 Imager device for inspecting SF6 gas leakage
CN203745161U (en) * 2014-03-04 2014-07-30 国家电网公司 SF6 gas positive pressure leak gas supply device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5163315A (en) * 1990-07-10 1992-11-17 Daikin Industries, Ltd. Leak detecting method for vessels
CN202533241U (en) * 2011-08-17 2012-11-14 青海电力科学试验研究院 Imager device for inspecting SF6 gas leakage
CN203745161U (en) * 2014-03-04 2014-07-30 国家电网公司 SF6 gas positive pressure leak gas supply device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
弓艳朋 等: "SF6气体泄漏成像仪检验技术研究", 《电测与仪表》 *
胡连清 等: "SF6气体红外成像检漏仪与定量检漏仪现场使用经验探讨", 《高压电器》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107741405A (en) * 2017-10-02 2018-02-27 国网山西省电力公司电力科学研究院 Portable SF6Infrared leak detector verification gas generating unit and method for generation
CN110411663A (en) * 2019-08-21 2019-11-05 广西电网有限责任公司电力科学研究院 A kind of SF6Micro constant pressure Leaking Simulation devices and methods therefor
CN110411663B (en) * 2019-08-21 2024-10-18 广西电网有限责任公司电力科学研究院 SF (sulfur hexafluoride)6Trace constant pressure leakage simulation device and method thereof

Similar Documents

Publication Publication Date Title
CN109765031B (en) Balance support rod for wind tunnel thermal jet interference test
CN103344777B (en) High-temperature and low-pressure oxygen dissociation environment test device for heat protection material
CN107539502B (en) Temperature-adjustment pressure-adjustment device for spacecraft environment test
CN102749227B (en) In-cylinder sampling system and method for internal combustion engine
CN204575355U (en) A kind of vacuum simulation test device with reduction of blood pressure in high-speed and explosive decompression function
CN105334278B (en) Gas chromatograph inlet end trace gas controller
CN103323230B (en) Gaseous combustion nozzle characteristic testing method and device
CN102866017A (en) Altitude environment simulation test cabin for internal combustion power equipment
CN205785679U (en) Dual-channel type SF6infrared imaging leak detector verification platform
CN105758589A (en) Platform for checking double-channel SF6 infrared imaging leak detector
CN202582786U (en) Test device of aircraft engine bleed air system temperature sensor
CN101241037A (en) Ice hockey emitter for detecting anti-collision of solar cell module
CN203335372U (en) Transformer oil pump testing device
CN206057136U (en) Laboratory antifouling flush paint hydrophobicity detection means
CN103411918A (en) Device for precisely measuring spectrum parameter of high-temperature gas
CN105181269A (en) Multi-channel fast calibration device of leakage detection device and method
CN103672904B (en) A kind of fuel gas pipeline of burner
CN203299340U (en) Photovoltaic assembly test system
CN103968386A (en) Remote-ignition gas following wake combustion device
CN105403290A (en) Natural gas circular flow standard test system
CN205175975U (en) Gas chromatograph inlet end trace gas control ware
CN209230914U (en) Shock tunnel jet flow response speed and high-speed electromagnetic valve Response Time Test System
CN102670322A (en) Shock wave generating device
CN203909010U (en) Multifunctional port for sulfur hexafluoride gas detection
CN104062081A (en) Remotely-controlled wide-range gas leakage rate detection device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160713

WD01 Invention patent application deemed withdrawn after publication