CN204758478U - Gaseous comprehensive testing appearance of infrared method sulfur hexafluoride electrical equipment - Google Patents
Gaseous comprehensive testing appearance of infrared method sulfur hexafluoride electrical equipment Download PDFInfo
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- CN204758478U CN204758478U CN201520406030.2U CN201520406030U CN204758478U CN 204758478 U CN204758478 U CN 204758478U CN 201520406030 U CN201520406030 U CN 201520406030U CN 204758478 U CN204758478 U CN 204758478U
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Abstract
The utility model relates to a gaseous comprehensive testing appearance of infrared method sulfur hexafluoride electrical equipment, including being used for connecting the first air duct of being examined the equipment gas vent, following the direction of admitting air on the first air duct and having set gradually current amount control means, analyte detecting element, purity detecting element, moisture detecting element and flow monitor cell, the gas of postdetection is followed the instrument gas vent and is discharged behind flow monitor cell, analyte detecting element, purity detecting element, moisture detecting element and flow monitor cell be electric connection to control module respectively. This detector will have four kinds of instruments of independent analyte detector, purity detector, moisture detector and leakage detector now and make up into an instrument ingeniously, not only alleviate the testing personnel burden, improve work efficiency, shorten the power off time moreover, reduce sulfur hexafluoride gaseous emission widely, and favourable environmental protection brings fine social economic benefit, has fine spreading value.
Description
Technical field
The utility model relates to a kind of infrared method sulfur hexafluoride electrical equipment gas integrated detector.
Background technology
Sulfur hexafluoride gas has been not only good chemical stability, and there is excellent insulating property and arc extinction performance, be widely used in high voltage electric equipment from last century after the eighties, as insulation and arc-extinguishing medium, effectively improve the safety and economic operation of electric system.But owing to there is some weak links and uncertainty in the design of equipment, material, mounting process and operation maintenance etc., make equipment may there are some hidden danger, and current electric and chemical detection means are difficult to detect the minor insulation hidden danger jeopardizing device security biggest threat, after putting equipment in service, under heat and electric effect, defect constantly expands, and insulation reduces gradually, until have an accident, have a strong impact on the safety and economic operation of electric system.Therefore, GB/T8905-2012 and DL/T941-2005 code all requires to carry out gas analyte, purity, water content detection to sulfur hexafluoride electrical equipment, to detect inner hidden danger in time, for the State Maintenance of equipment provides scientific basis.
When carrying out gas detect, the junction of equipment exhausr port adapter and the first wireway likely can be leaked; Also may poor sealing when exhausr port shrouding restores, cause sulfur hexafluoride gas to leak, affect device security, contaminated environment.Therefore, power industry regulatory requirements, when detecting and after the recovery of equipment exhausr port shrouding, should use sulfur hexafluoride gas leak detector to hunt leak, confirming good seal, guarantee device security.At present, analyte detects and uses electrochemical process, and purity uses thermal conductivity method, and its precision and stability is not so good, have impact on applying of this detection technique.
Utility model content
In view of the deficiencies in the prior art, technical problem to be solved in the utility model is that application infrared principles provides that a kind of modern design, structure are simple, easy to use, the infrared method sulfur hexafluoride electrical equipment gas integrated detector of good stability, highly sensitive, long service life.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of infrared method sulfur hexafluoride electrical equipment gas integrated detector, and application infrared principles detects SF
6electrical equipment analyte, purity, moisture and leakage, comprise the first wireway for connecting tested equipment exhausr port, described first wireway is disposed with flow controlling unit, analyte detecting unit, purity detecting unit, water content detection unit and flow monitoring unit along airintake direction, gas after detection is discharged from instrument exhausr port after flow monitoring unit, and described analyte detecting unit, purity detecting unit, water content detection unit and flow monitoring unit are electrically connected to control module respectively.
Further, this detector also comprises the second wireway, the junction of the first wireway inlet end and tested equipment exhausr port adapter is close to by described second wireway air intake opening, described second wireway is provided with leak detection unit, gas after detection is discharged from instrument exhausr port after flow monitoring unit, and described leak detection unit is electrically connected to control module.
Further, described control module comprises board unit, power supply unit and display unit.
Compared with prior art, the utility model has following beneficial effect: analyte detecting unit, purity detecting unit and water content detection unit that this detector adopts infrared method to detect, improves and detects stability and precision, extend serviceable life; Existing independently analyte detector, purity detecting instrument, moisture detector and leak locator four kinds of instruments are combined into an instrument dexterously, not only alleviate testing crew burden, improve work efficiency, and shorten power off time, greatly reduce sulfur hexafluoride gas discharge, environmental, bring good economic results in society, there is good promotional value; For coordinating existing control software design, analyte content, SF in sulfur hexafluoride electrical equipment can be detected accurately and rapidly
6gas purity and moisture, and the state judging tested sulfur hexafluoride electrical equipment according to detection data analysis.This detector after gas detect terminates, can also carry out Leak Detection immediately, judges the sealing state of tested equipment exhausr port accurately and rapidly, guarantees equipment safety operation.
Accompanying drawing explanation
Fig. 1 is the structure block diagram of the utility model embodiment.
In figure: the tested equipment exhausr port of 1-, 2-first wireway, 3-flow controlling unit, 4-analyte detecting unit, 5-purity detecting unit, 6-control module, 7-water content detection unit, 8-flow monitoring unit, 9-instrument exhausr port, 10-leak detection unit, 11-second wireway.
Embodiment
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
As shown in Figure 1, a kind of infrared method sulfur hexafluoride electrical equipment gas integrated detector, application infrared principles detects SF
6electrical equipment analyte, purity, moisture and leakage, comprise the first wireway 2 for connecting tested equipment exhausr port 1, described first wireway 2 is disposed with flow controlling unit, analyte detecting unit 4, purity detecting unit 5, water content detection unit 7 and flow monitoring unit 8 along airintake direction, gas after detection is discharged from instrument exhausr port 9 after flow monitoring unit 8, and described analyte detecting unit 4, purity detecting unit 5, water content detection unit 7 and flow monitoring unit 8 are electrically connected to control module 6 respectively.
In the present embodiment, in order to detect the sealing of tested equipment exhausr port 1 shrouding after the sealing of the first wireway 2 connecting portion and off-test, this detector also comprises the second wireway 11, the junction of the first wireway 2 inlet end and tested equipment exhausr port 1 adapter is close to by described second wireway 11 air intake opening, described second wireway 11 is provided with leak detection unit 10, gas after detection is discharged from instrument exhausr port 9 after flow monitoring unit 8, and described leak detection unit 10 is electrically connected to control module 6.
In the present embodiment, described leak detection unit 10 can adopt quantitative detector, its highly sensitive, good stability, can detect the atomic little leakage of sulfur hexafluoride in time, to the leakage of the first wireway 2 connecting portion and tested equipment exhausr port 1 shrouding be stopped, improve the security performance of equipment.Because detector and tested equipment exhausr port 1 have longer distance, when detecting sulfur hexafluoride gas leakage rate and exceeding setting value, send early warning, alarm, make operation second wireway 11(and air intake duct) personnel learn the position of poor sealing in time, process immediately, improve work efficiency.
In the present embodiment, described flow controlling unit 3 can be flowrate control valve, realizes the voltage stabilizing of tested gas.Described analyte detecting unit 4, purity detecting unit 5, water content detection unit 7 and leak detection unit 10 constitute infrared transmitter, after tested gas is introduced infrared transmitter, just can detect the SO in gas respectively
2, H
2analyte content, the SF such as S, CO
6the purity of gas and moisture and SF
6the leakage of gas; Wherein, described flow monitoring unit 8 can adopt flow sensor.
In the present embodiment, described control module 6 comprises board unit, power supply unit and display unit, described power supply unit by board unit be analyte detecting unit 4, purity detecting unit 5, water content detection unit 7, leak detection unit 10 and flow monitoring unit 8 power, described display unit can adopt display to show gas detect process and result.
In the present embodiment, the gas circuit of this detector is divided into two-way: analyte, purity and moisture are detected in a road, tested gas flows into instrument from tested equipment exhausr port 1 after the first wireway 2 filters, each detecting unit is entered through flow adjustment, each cell sensor exports the electric signal corresponding to its content, discharges from instrument exhausr port 9 finally by flow monitoring unit 8; Another road is by the gas of tested equipment exhausr port 1 shrouding sealing place, enters leak detection unit 10 through the second wireway 11, and this cell sensor exports the electric signal corresponding to its content, discharges from instrument exhausr port 9 finally by after flow monitoring unit 8.
In the present embodiment, this detector adopts infrared detection principle to the gas analyte of sulfur hexafluoride electrical equipment, purity, moisture and sulfur hexafluoride gas leakage part, not only solve and adopt electrochemical sensor to there is the problem of cross reaction at present, and eliminate the interfering with each other of electronic circuit, thus improve stability and accuracy of detection.
In the present embodiment, analyte single at present, purity, moisture and sulfur hexafluoride gas are leaked these four kinds of test items by this detector organically to be combined, and can carry out individual event according to actual needs or multinomial combination detects; Instrument startup self-detection is normal, after being provided with related parameter, just can test; Display shows the detection data of projects simultaneously, and not only efficiency is high, environmental; And can do comprehensive analysis according to gas entry data by built-in existing expert diagnostic system, valuator device state, the maintenance for equipment provides more scientific foundation.
During actual use, test item is had to select interface over the display, when clicking moisture, the survey of purity Sum decomposition quality testing, sample gas enters instrument from tested equipment exhausr port 1 after the first wireway 2 filters, be adjusted to setting value through flow controlling unit 3, enter after each cell sensor detects, export the electric signal corresponding to its concentration, after temperature drift, linear, cross jamming process, endpoint, expert diagnostic system carries out comprehensive analysis and judgement according to detection data; Sample air-flow inbound traffics monitoring means 8, finally flows out from instrument exhausr port 9.
After connection first wireway 2 and detection terminate after tested equipment exhausr port 1 shrouding recovery, " Leak Detection " is clicked at test item interface, after self-inspection is normal, the air intake opening of the second wireway 11 is close to the first wireway 2 connecting portion or the sealing surface slowly movement along tested equipment exhausr port 1 shrouding, suck gas near the first wireway 2 connecting portion or shrouding sealing surface to leak detection unit 10, after flow monitoring unit 8, flow out from instrument exhausr port 9.
The utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of infrared method sulfur hexafluoride electrical equipment gas integrated detectors under enlightenment of the present utility model.All equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (3)
1. an infrared method sulfur hexafluoride electrical equipment gas integrated detector, is characterized in that: application infrared principles detects SF
6electrical equipment analyte, purity, moisture and leakage, comprise the first wireway for connecting tested equipment exhausr port, described first wireway is disposed with flow controlling unit, analyte detecting unit, purity detecting unit, water content detection unit and flow monitoring unit along airintake direction, gas after detection is discharged from instrument exhausr port after flow monitoring unit, and described analyte detecting unit, purity detecting unit, water content detection unit and flow monitoring unit are electrically connected to control module respectively.
2. infrared method sulfur hexafluoride electrical equipment gas integrated detector according to claim 1, it is characterized in that: also comprise the second wireway, the junction of the first wireway inlet end and tested equipment exhausr port adapter is close to by described second wireway air intake opening, described second wireway is provided with leak detection unit, gas after detection is discharged from instrument exhausr port after flow monitoring unit, and described leak detection unit is electrically connected to control module.
3. infrared method sulfur hexafluoride electrical equipment gas integrated detector according to claim 1 and 2, is characterized in that: described control module comprises board unit, power supply unit and display unit.
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| CN201520406030.2U CN204758478U (en) | 2015-06-13 | 2015-06-13 | Gaseous comprehensive testing appearance of infrared method sulfur hexafluoride electrical equipment |
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| CN201520406030.2U CN204758478U (en) | 2015-06-13 | 2015-06-13 | Gaseous comprehensive testing appearance of infrared method sulfur hexafluoride electrical equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332913A (en) * | 2018-02-02 | 2018-07-27 | 国网山东省电力公司潍坊供电公司 | The infrared leak detection auxiliary tools of SF6 |
| CN108458984A (en) * | 2018-05-21 | 2018-08-28 | 郑州力创光电技术有限公司 | The online gas-monitoring control system of air insulating device based on photoelectric sensing principle |
| CN110672277A (en) * | 2019-10-10 | 2020-01-10 | 国网重庆市电力公司电力科学研究院 | SF6 gas field comprehensive detection system and method |
| CN112326596A (en) * | 2020-10-30 | 2021-02-05 | 国网上海市电力公司 | SF based on long-optical-path TDLAS technology6Online monitoring device for decomposed substances |
-
2015
- 2015-06-13 CN CN201520406030.2U patent/CN204758478U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332913A (en) * | 2018-02-02 | 2018-07-27 | 国网山东省电力公司潍坊供电公司 | The infrared leak detection auxiliary tools of SF6 |
| CN108458984A (en) * | 2018-05-21 | 2018-08-28 | 郑州力创光电技术有限公司 | The online gas-monitoring control system of air insulating device based on photoelectric sensing principle |
| CN110672277A (en) * | 2019-10-10 | 2020-01-10 | 国网重庆市电力公司电力科学研究院 | SF6 gas field comprehensive detection system and method |
| CN112326596A (en) * | 2020-10-30 | 2021-02-05 | 国网上海市电力公司 | SF based on long-optical-path TDLAS technology6Online monitoring device for decomposed substances |
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