CN203479582U - Online sampling and measurement device for high-voltage switch SF6 gas decomposition products - Google Patents
Online sampling and measurement device for high-voltage switch SF6 gas decomposition products Download PDFInfo
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- CN203479582U CN203479582U CN201320609333.5U CN201320609333U CN203479582U CN 203479582 U CN203479582 U CN 203479582U CN 201320609333 U CN201320609333 U CN 201320609333U CN 203479582 U CN203479582 U CN 203479582U
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- 238000005070 sampling Methods 0.000 title claims abstract description 33
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 15
- 238000005259 measurement Methods 0.000 title abstract description 3
- 229910018503 SF6 Inorganic materials 0.000 claims abstract description 35
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229960000909 sulfur hexafluoride Drugs 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 239000012491 analyte Substances 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 7
- 230000036541 health Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract 3
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an online sampling and measurement device for high-voltage switch SF6 gas decomposition products. A sample inside a sulfur hexafluoride device is pumped through a sampling gas circuit, the pumped sample is conveyed into an online detection and recycling gas circuit, and detection on various parameter indexes of the sample is carried out in the online detection and recycling gas circuit, the detection result can be sent to a remote collecting and control center through a site industrial personal computer, after detection is completed, redundant gas is recycled through a recycling device to prevent environment pollution and influences on health of site workers, then gas supplementing is carried out on the detection device through a gas recharging circuit, normal operation of the device is guaranteed, and losses of the device are reduced.
Description
Technical field
The utility model relates to high pressure, insulation electrical equipment service technique field, relates in particular to a kind of for high-voltage switch gear SF
6the online sampling and measuring device of gas decomposition product.
Background technology
Sulfur hexafluoride gas (SF
6) there is good insulation and arc extinction performance, be widely used in the electrical equipments such as gas-insulated switchgear (GIS), gas insulation breaker, transformer, mutual inductor, the switchgear of China 110kv and above mainly adopts sulfur hexafluoride gas insulation equipment, thus, the scientific evaluation of equipment state is significant to guaranteeing operation of power networks.
Research shows, for sulfur hexafluoride gas (SF
6) detection of air insulating device, the method that adopts at present sulfur hexafluoride gas gas analyte to detect.The insulant of the general checkout equipment of this method is along the latency fault diagnosises such as abnormal ablation that connect parts in the abnormal heating, arc-chutes of defect, device interior between planar defect, device interior conductor, and GIS localization of fault aspect.The method detecting due to sulfur hexafluoride gas analyte has the advantages such as the external environmental interference of being subject to is little, highly sensitive, accuracy is good, becomes new technology and the effective means of operational outfit condition monitoring and fault diagnosis.
Yet, the SF of current rig-site utilization
6gas analyte detector adopts off-line method mostly, and need be sampled to laboratory and detect, or personnel's Site Detection (the Site Detection cycle is longer), reflection electrical equipment situation that can not be timely or real-time.And, owing to adopting offline inspection, in testing process, need sampling or extract sample gas, like this, cause certain venting effect will to SF 6 high-voltage equipment, discharge quantity number with detecting number of times and time, have direct relation, can cause the harmful effect of high-tension switch gear body pressure drop, affect the normal operation of equipment.Moreover, sample gas during detection or detection gas are all directly emptying, this part air-discharging cognition causes greenhouse effect to the ecologic environment of human survival, and (sulfur hexafluoride gas itself is the gas that a kind of greenhouse effect are very strong, its greenhouse effect are 23900 times of equivalent carbon dioxide), when being polluted and destroyed, living environment causes the even harm of life of health (containing some severe corrosives, extremely toxic substance in decomposition product) to maintainer.
Utility model content
The purpose of this utility model is to provide a kind of high-voltage switch gear SF
6the online sampling and measuring device of gas decomposition product, can sample online, detect the multiple parameters index of the gas analyte of sulfur hexafluoride equipment, and can reclaim detection gas, prevents contaminated environment; , can detected sulfur hexafluoride equipment be recharged again meanwhile, guarantee the normal operation of equipment, increase work efficiency.
The technical solution adopted in the utility model is:
A kind of high-voltage switch gear SF
6the online sampling and measuring device of gas decomposition product, comprises sampling gas circuit, detects online and reclaims gas circuit and recharge gas circuit; Described sampling gas circuit comprises four-way valve, the first hand valve, the first solenoid valve, the T-valve connecting successively, four-way valve connects sampling line, the entrance point of sampling line connects sulfur hexafluoride equipment, is connected with the first pressure unit in the middle of the first hand valve and the first electromagnetic valve gas circuit; Online detection and recovery gas circuit comprise the second solenoid valve, flowrate control valve, manual three-way valve, analyte detector, device for recovering tail gas, the second hand valve, the recovery gas cylinder connecting successively, the 3rd interface of manual three-way valve connects needle-valve, the second interface of the first interface connecting tee valve of the second solenoid valve; Recharge gas circuit and comprise successively the 3rd solenoid valve, the reduction valve connecting and recharge bottle, in reduction valve and the middle gas circuit that recharges bottle, be connected the second pressure unit; Also comprise on-the-spot industrial computer, the control output end of on-the-spot industrial computer connects respectively the first solenoid valve, the second solenoid valve, the 3rd solenoid valve, the first input end of on-the-spot industrial computer connects the signal output part of the first pressure unit and the second pressure unit, the output terminal of the second input end conjunctive decomposition thing detector of on-the-spot industrial computer.
Described sampling line is provided with three tunnels, and per pass sampling line is provided with a solenoid valve.
Also comprise micro-water-mass density instrument, micro-water-mass density instrument connects sulfur hexafluoride equipment, and the output terminal of micro-water-mass density instrument connects the 3rd input end of on-the-spot industrial computer.
Described on-the-spot industrial computer connects remote control center by wireless module.
The second output terminal of described on-the-spot industrial computer connects display panel.
The utility model is by sampling gas circuit, extract the sample in sulfur hexafluoride equipment, the sample of extraction is transported to online detection and reclaims gas circuit, in this gas circuit, carry out the detection of sample parameters index, testing result can send to remote control center by on-the-spot industrial computer, after detection, unnecessary gas is reclaimed by retracting device, prevent the pollution of the environment and affect field personnel's health; Secondly, by recharging gas circuit, checkout equipment is carried out to gas make-up, guarantee the normal operation of equipment, reduce equipment loss.
Accompanying drawing explanation
Fig. 1 is gas circuit structure schematic diagram of the present utility model;
Fig. 2 is control principle block diagram of the present utility model.
Embodiment
As shown in Figure 1, 2, the utility model comprises sampling gas circuit, detects online and reclaims gas circuit and recharge gas circuit; Sampling gas circuit comprises four-way valve K, the first hand valve K1, the first solenoid valve V1, the T-valve S1 connecting successively, four-way valve K connects sampling line, the first hydraulic fluid port of four-way valve K, the second hydraulic fluid port and the 3rd hydraulic fluid port are connected respectively the 4th solenoid valve V4, the 5th solenoid valve V5, the 6th solenoid valve V6 that per pass sampling line is provided with, the entrance point of the 4th solenoid valve V4, the 5th solenoid valve V5, the 6th solenoid valve V6 is connected with the first pressure unit P2 in the middle of connecting sulfur hexafluoride equipment 1, the first hand valve K1 and the first solenoid valve V1 gas circuit; Online detection and recovery gas circuit comprise the second solenoid valve V3, flowrate control valve Q2, manual three-way valve S2, analyte detector 2, device for recovering tail gas 4, the second hand valve K2, the recovery gas cylinder 5 connecting successively, the 3rd interface of manual three-way valve S2 connects the second interface of the first interface connecting tee valve S1 of needle-valve 3, the second solenoid valve V3; Recharge gas circuit and comprise successively the 3rd solenoid valve V2, the reduction valve Q1 connecting and recharge bottle 6, reduction valve Q1 and recharge in bottles 6 middle gas circuit and be connected the second pressure unit P1; Also comprise on-the-spot industrial computer, the control output end of on-the-spot industrial computer connects respectively the first solenoid valve V1, the second solenoid valve V3, the 3rd solenoid valve V2, the 4th solenoid valve V4, the 5th solenoid valve V5, the 6th solenoid valve V6 by DO module, the second output terminal of on-the-spot industrial computer connects display panel, the first input end of on-the-spot industrial computer connects the signal output part of the first pressure unit P2 and the second pressure unit P1, the output terminal of the second input end conjunctive decomposition thing detector 1 of on-the-spot industrial computer by AI module.Also comprise micro-water-mass density instrument, micro-water-mass density instrument connects sulfur hexafluoride equipment, and the output terminal of micro-water-mass density instrument connects the 3rd input end of on-the-spot industrial computer, and on-the-spot industrial computer connects remote control center by wireless module.
The principle of work of sulfur hexafluoride gas on-line monitoring and tail gas recycle:
When the on-line analysis state of the analyte of this device sulfur hexafluoride gas in high-voltage switch gear (being also the recovery state of tail gas) simultaneously, first, guarantee the good working state of sulfur hexafluoride gas analyte detector 2, now need to close the first solenoid valve V1, open the 3rd solenoid valve V2 and the second solenoid valve V3, analyte detector 2 is blown to Z-operation, secondly, while measuring operation, first close the gas circuit that recharges of sulfur hexafluoride gas, now, close the 3rd solenoid valve V2, open the first solenoid valve V1 and the second solenoid valve V3, unlatching is by the 4th solenoid valve V4, some passages in three sampling passages that the 5th solenoid valve V5 and the 6th solenoid valve V6 control (opening and closing of different sampling passages have determined the difference of sulfur hexafluoride equipment 1 up-sampling point), gas sampled is from main pipeline flow through successively the 4th solenoid valve V4(or the 5th solenoid valve V5 or the 6th solenoid valve V6), the first hand valve K1, the first solenoid valve V1, T-valve S1, the second solenoid valve V3, flowrate control valve Q2, manual three-way valve S2, sulfur hexafluoride analyte detector 2, sulfur hexafluoride tail gas after sulfur hexafluoride analyte detector 2 detects enters device for recovering tail gas 4, second-hand's brake control valve K2 that flows through under the effect of device for recovering tail gas 4 is collected into and reclaims gas cylinder 5, when a recovery gas cylinder 5 is full of, can switch and reclaim gas cylinder 5 by second-hand's brake control valve K2.Finally, when analyte detector 2 completes after detection, close the first solenoid valve V1, the second solenoid valve V3, complete this on-line measurement.
In the Chinese patent that device for recovering tail gas is 201310417599.4 at number of patent application, disclose the principle of work of device for recovering tail gas, belonged to prior art, do not repeated them here.
In this process, as shown in Figure 2, can carry out multiple operation to detecting data, by on-the-spot industrial computer, can realize read, preservation etc., also can to detecting data, process according to trigger condition (manual activation, clocked flip, Remote triggering), by display panel, show every data message, clear, understandable, by wireless module, detection data are carried out to teletransmission to remote control center again, also can control on-the-spot every detection etc. simultaneously.In the process of sulfur hexafluoride gas on-line monitoring and tail gas recycle, the gas circuit pressure that pressure unit P2 detects while being on-line monitoring.
The new gas of sulfur hexafluoride recharges principle of work:
SF 6 high-voltage electrical equipment 1(isolating switch, GIS etc.) be in operation and will carry out conventional test, as the test such as water cut, analyte in sulfur hexafluoride gas, repeatedly test or because select the reasons such as testing tool air consumption is large can cause body interior pressure, density to decline, thereby need to supplement new sulfur hexafluoride gas.
When main pipeline by micro-water-mass density instrument detected pressures lower than the pressure of setting, or artificial, Long-distance Control is while triggering tonifying Qi condition, this device can enter sulfur hexafluoride gas inflation procedure, and sulfur hexafluoride equipment 1 is carried out to tonifying Qi operation.Now, close the second solenoid valve V3, open the 3rd solenoid valve V2 and the first solenoid valve V1, the new gas of sulfur hexafluoride is from the new gas reservoir vessel of sulfur hexafluoride return-air bottle 6 flow through successively reduction valve Q1, the 3rd solenoid valve V2, and T-valve S1, the first solenoid valve V1, the first hand valve K1, the 4th solenoid valve V4 (or the 5th solenoid valve V5 or the 6th solenoid valve V6) are filled with sulfur hexafluoride equipment 1.In this process, the second pressure unit P1 detects the gaseous tension of the bottleneck mouth of the new gas reservoir vessel of sulfur hexafluoride return-air bottle 6, and the first pressure unit P2 detects the air pressure of gas ducting, thereby complete, recharges.
Claims (5)
1. a high-voltage switch gear SF
6the online sampling and measuring device of gas decomposition product, is characterized in that: comprise sampling gas circuit, detect online and reclaim gas circuit and recharge gas circuit; Described sampling gas circuit comprises four-way valve, the first hand valve, the first solenoid valve, the T-valve connecting successively, four-way valve connects sampling line, the entrance point of sampling line connects sulfur hexafluoride equipment, is connected with the first pressure unit in the middle of the first hand valve and the first electromagnetic valve gas circuit; Online detection and recovery gas circuit comprise the second solenoid valve, flowrate control valve, manual three-way valve, analyte detector, device for recovering tail gas, the second hand valve, the recovery gas cylinder connecting successively, the 3rd interface of manual three-way valve connects needle-valve, the second interface of the first interface connecting tee valve of the second solenoid valve; Recharge gas circuit and comprise successively the 3rd solenoid valve, the reduction valve connecting and recharge bottle, in reduction valve and the middle gas circuit that recharges bottle, be connected the second pressure unit; Also comprise on-the-spot industrial computer, the control output end of on-the-spot industrial computer connects respectively the first solenoid valve, the second solenoid valve, the 3rd solenoid valve, the first input end of on-the-spot industrial computer connects the signal output part of the first pressure unit and the second pressure unit, the output terminal of the second input end conjunctive decomposition thing detector of on-the-spot industrial computer.
2. high-voltage switch gear SF according to claim 1
6the online sampling and measuring device of gas decomposition product, is characterized in that: described sampling line is provided with three tunnels, and per pass sampling line is provided with a solenoid valve.
3. high-voltage switch gear SF according to claim 2
6the online sampling and measuring device of gas decomposition product, is characterized in that: also comprise micro-water-mass density instrument, micro-water-mass density instrument connects sulfur hexafluoride equipment, and the output terminal of micro-water-mass density instrument connects the 3rd input end of on-the-spot industrial computer.
4. high-voltage switch gear SF according to claim 3
6the online sampling and measuring device of gas decomposition product, is characterized in that: described on-the-spot industrial computer connects remote control center by wireless module.
5. high-voltage switch gear SF according to claim 4
6the online sampling and measuring device of gas decomposition product, is characterized in that: the second output terminal of described on-the-spot industrial computer connects display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320609333.5U CN203479582U (en) | 2013-09-29 | 2013-09-29 | Online sampling and measurement device for high-voltage switch SF6 gas decomposition products |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320609333.5U CN203479582U (en) | 2013-09-29 | 2013-09-29 | Online sampling and measurement device for high-voltage switch SF6 gas decomposition products |
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| Publication Number | Publication Date |
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| CN203479582U true CN203479582U (en) | 2014-03-12 |
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| CN201320609333.5U Expired - Fee Related CN203479582U (en) | 2013-09-29 | 2013-09-29 | Online sampling and measurement device for high-voltage switch SF6 gas decomposition products |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633173A (en) * | 2015-02-03 | 2015-05-20 | 国家电网公司 | Novel SF6 gas splitter |
| CN108443700A (en) * | 2018-02-02 | 2018-08-24 | 国网青海省电力公司西宁供电公司 | A kind of sulfur hexafluoride combined electric appliance gas charged for replacement control device |
| CN109342751A (en) * | 2018-11-27 | 2019-02-15 | 国网重庆市电力公司电力科学研究院 | A kind of sulfur hexafluoride Condition Detection nigration system |
| CN109374833A (en) * | 2018-11-13 | 2019-02-22 | 江苏省电力试验研究院有限公司 | A kind of SF6 gas intelligent checking system and method |
| CN109442225A (en) * | 2018-12-18 | 2019-03-08 | 河南省日立信股份有限公司 | The insulating gas on-line monitoring system and method for preventing signal piping leakage |
| CN110954656A (en) * | 2019-11-20 | 2020-04-03 | 国网河南省电力公司平顶山供电公司 | Gaseous detection refilling device of SF6 switch |
| CN111425757A (en) * | 2020-04-27 | 2020-07-17 | 广东电网有限责任公司 | SF6 gas online self-circulation device |
-
2013
- 2013-09-29 CN CN201320609333.5U patent/CN203479582U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633173A (en) * | 2015-02-03 | 2015-05-20 | 国家电网公司 | Novel SF6 gas splitter |
| CN108443700A (en) * | 2018-02-02 | 2018-08-24 | 国网青海省电力公司西宁供电公司 | A kind of sulfur hexafluoride combined electric appliance gas charged for replacement control device |
| CN109374833A (en) * | 2018-11-13 | 2019-02-22 | 江苏省电力试验研究院有限公司 | A kind of SF6 gas intelligent checking system and method |
| CN109342751A (en) * | 2018-11-27 | 2019-02-15 | 国网重庆市电力公司电力科学研究院 | A kind of sulfur hexafluoride Condition Detection nigration system |
| CN109442225A (en) * | 2018-12-18 | 2019-03-08 | 河南省日立信股份有限公司 | The insulating gas on-line monitoring system and method for preventing signal piping leakage |
| CN109442225B (en) * | 2018-12-18 | 2022-02-25 | 河南省日立信股份有限公司 | Insulating gas online monitoring system and method for preventing and detecting pipeline leakage |
| CN110954656A (en) * | 2019-11-20 | 2020-04-03 | 国网河南省电力公司平顶山供电公司 | Gaseous detection refilling device of SF6 switch |
| CN111425757A (en) * | 2020-04-27 | 2020-07-17 | 广东电网有限责任公司 | SF6 gas online self-circulation device |
| CN111425757B (en) * | 2020-04-27 | 2021-05-25 | 广东电网有限责任公司 | SF6 gas online self-circulation device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |