CN103472193B - Quick tester for transmitter laboratory - Google Patents
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- CN103472193B CN103472193B CN201310459250.7A CN201310459250A CN103472193B CN 103472193 B CN103472193 B CN 103472193B CN 201310459250 A CN201310459250 A CN 201310459250A CN 103472193 B CN103472193 B CN 103472193B
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Abstract
A quick tester for a transmitter laboratory comprises a standard gas generation device, a two-position three-way electromagnetic valve, a first three-way pipe, a calibration box for a meter to be evaluated and a differential pressure sensor. A gas outlet of the standard gas generation device is connected with a gas inlet of the two-position three-way electromagnetic valve, a gas outlet of the two-position three-way electromagnetic valve and a gas inlet of the calibration box for the meter to be evaluated are connected with two end ports of the first three-way pipe respectively, and another end port of the first three-way pipe is connected with the differential pressure sensor. The quick tester can evaluate whether a transmitter works reliably and can be widely applied to various power experimental investigation institutes and laboratories of a power system and factories for producing sulfur hexafluoride leakage monitoring meters. Furthermore, the quick tester has the significance in guaranteeing operation safety of sulfur hexafluoride electric equipment, preventing environmental pollution and damage caused by leakage of sulfur hexafluoride high pressure switches and protecting life safety of maintainers.
Description
Technical field
The invention belongs to instrument technical field, particularly a kind of Quick tester for transmitter laboratory being applicable to the verification of sulfur hexafluoride gas monitoring, alarming transmitter.
Background technology
Sulfur hexafluoride gas, with the insulation of its excellence and arc extinction performance, is widely used on the GIS equipment of urban distribution network transformer station.But, affect owing to being subject to the factors such as the difference of the quality such as manufacture, installation and material aging, it is a general phenomenon that sulfur hexafluoride electrical equipment occurs to leak, and the sulfur hexafluoride gas leaked out and analyte thereof can gather toward indoor low layer space, cause ischaemia and band poison, serious danger is constituted to the life security entering indoor staff.
The relevant criterion of China and behavior code clearly propose the leakage monitoring of sulfur hexafluoride gas.According to " electric industry safety regulations ", " sulfur hexafluoride electrical equipment runs DL/T 639-1997, test and maintainer's security protection detailed rules and regulations " and the relevant regulations such as GB12358-2006 " work site environment gas detecting and alarming instrument generic specifications ", in room sulfur hexafluoride electrical equipment workplace, online sulfur hexafluoride-oxygen leakage monitoring alarm instrument must be installed, the content of sulfur hexafluoride gas and oxygen in Real-Time Monitoring environment, as sulfur hexafluoride gas content overproof in environment (sulfur hexafluoride gas concentration > 1000 μ L/L) or anoxic (oxygen concentration < 18%), monitoring alarm instrument can carry out sound and light alarm immediately, take safety measures to remind staff, simultaneously, system starts air discharging facility automatically to reduce sulfur hexafluoride gas content in surrounding air, ensure the personal safety entering office work personnel.
On the one hand, sulfur hexafluoride electrical equipment generation leakage is universal phenomenon, and on the other hand, the relevant criterion of China and behavior code clearly propose the leakage monitoring of sulfur hexafluoride gas; So, in power grid construction, how authoritative performance test is carried out to bid product, sensor performance is assessed, calibrating is completed to censorship sensing unit? at present, the calibration tool to the practicality of sulfur hexafluoride gas monitoring, alarming transmitter is lacked on market and in industry.
Summary of the invention
The present invention, for solving the problems of the technologies described above, provides a kind of special Quick tester for transmitter laboratory of carrying out rapid verification for sulfur hexafluoride gas monitoring, alarming transmitter.
For achieving the above object, the present invention is by the following technical solutions: Quick tester for transmitter laboratory, comprise standard gas generating apparatus, two-position three way magnetic valve, the first three-way pipe, instrument check case to be evaluated and differential pressure pick-up, the gas outlet of standard gas generating apparatus is connected with the air intake opening of two-position three way magnetic valve, a gas outlet of two-position three way magnetic valve is connected with two ports of the first three-way pipe respectively with the air intake opening of instrument check case to be evaluated, and another port of the first three-way pipe is connected with differential pressure sensing.
Also comprise the first two-position two-way solenoid valve, pneumatic pump and the second three-way pipe, the gas outlet of described instrument check case to be evaluated is connected with the air intake opening of the first two-position two-way solenoid valve, the gas outlet of the first two-position two-way solenoid valve is connected with the air intake opening of pneumatic pump, and the gas outlet of pneumatic pump is connected with a port of the second three-way pipe.
Also comprise the second two-position two-way solenoid valve, described instrument check case to be evaluated offers emptying air intake opening, and emptying air intake opening is connected with the gas outlet of the second two-position two-way solenoid valve.
Another gas outlet of described two-position three way magnetic valve is connected with another port of the second three-way pipe.
Adopt technique scheme, the present invention adopts built-in standard gas generating apparatus, collection sulfur hexafluoride and numerous measured value of parameters monitoring and testing such as oxygen content and ambient temperature and humidity with one, when transmitter is connected with monitoring main frame, can also verify whether the alarm module of monitoring main frame normally starts.Whether in a word, whether the work that standard gas generating apparatus can evaluate transmitter is reliable, and whether accurately comprise measured value, whether reaction velocity meets the requirements, and whether the accuracy of measured value meets expection, the alarm module of monitoring main frame can also be checked normal.
Standard gas generating apparatus is used for generating the calibrating gas evaluated and verify sulfur hexafluoride on-line monitoring transmitter in other words.The standard source of the gas that the input of its air source inlet is purchased, the calibrating gas of the various concentration of its delivery outlet output verification transmitter.The built-in verification gas generating unit of the present invention, user need not buy special distribution equipment when carrying out instrument check, only need prepare two bottles of gases, and verification is convenient, and cost reduces.
Be connected to instrument check case to be evaluated after the gas outlet of standard gas generating apparatus is connected in series a two-position three way magnetic valve and the first three-way pipe successively by gas piping, the remaining port of the first three-way pipe is connected with differential pressure pickup.Differential pressure pickup is used for the change of Real-Time Monitoring instrument check loading pressure to be evaluated, to judge system running environment and security, and makes action by corresponding control module, safeguards system even running.When the transmitter that the online leakage monitoring of room sulfur hexafluoride gas is reported to the police needs verification to evaluate, put it into instrument check case to be evaluated, these transmitters will complete the evaluation of instrument under the calibrating gas environment generated at standard gas generating apparatus, whether accurately comprise measured value, whether reaction velocity meets the requirements, and whether the accuracy of measured value meets expection; The alarm module of monitoring main frame can also be checked whether normal when transmitter is connected with monitoring main frame.
In checking procedure, when the calibrating gas in instrument check case to be evaluated needs varied concentration, or when having tested, need the evacuate air in instrument check case to be evaluated.The present invention also devises fast evacuation gas circuit, to meet the time requirement of shorter verification interval, namely after completing primary instrument verification, can verify gas by Rapid replacement, in order to verification next time.Emptying gas circuit of the present invention is as follows: the emptying air intake opening of instrument check case to be evaluated connects the second two-position two-way solenoid valve, have a gas outlet in the bottom of instrument check case to be checked, this gas outlet is connected with the first two-position two-way solenoid valve, pneumatic pump and the second three-way pipe in turn by gas piping.When instrument check case to be evaluated needs emptying, the gas in instrument check case to be evaluated is discharged from gas outlet by the first two-position two-way solenoid valve, pneumatic pump and the second three-way pipe successively under the effect of pneumatic pump.In order to weaken the impact of residual gas in instrument check case to be evaluated, the present invention have also been devised emptying air inlet pipeline, under the effect of pneumatic pump, outside air enters instrument check case to be evaluated and then discharges from its gas outlet via the first two-position two-way solenoid valve, pneumatic pump and the second three-way pipe after the second two-position two-way solenoid valve.
When the calibrating gas flow that standard gas generating apparatus generates is greater than the gas flow of checking box use, unnecessary gas flow is shunted from another passage of two-position three way magnetic valve, namely produce overflow, this overflow gas is incorporated to its gas outlet is drained through gas piping, the second three-way pipe again.
The present invention adopts built-in standard gas generating apparatus, collection sulfur hexafluoride and numerous measured value of parameters monitoring and testing such as oxygen content and ambient temperature and humidity with one, when transmitter is connected with monitoring main frame, can also verify whether the alarm module of monitoring main frame normally starts.Whether in a word, whether the work that the present invention can evaluate transmitter is reliable, and whether accurately comprise measured value, whether reaction velocity meets the requirements, and whether the accuracy of measured value meets expection, the alarm module of monitoring main frame can also be checked normal.
Whether the work that the present invention can evaluate transmitter is reliable, comprise sulfur hexafluoride and whether numerous measured value of parameters such as oxygen content and ambient temperature and humidity is accurate, whether reaction velocity meets the requirements, and whether the accuracy of measured value meets expection, when transmitter is connected with monitoring main frame, the alarm module of monitoring main frame can also be checked whether normal.All kinds of power tests that this device can be widely used in electric system grind and the manufacturer of laboratory and sulfur hexafluoride leakage monitoring instrument, to ensureing the security of operation of sulfur hexafluoride electrical equipment, the leakage pollution on the environment of prevention SF 6 high-voltage switch and destruction, Maintenance and Repair human life safety are significant.
In addition, the built-in standard gas generating apparatus of the present invention, user need not buy special distribution equipment when carrying out instrument check, only need prepare two bottles of gases, has the advantages that verification is convenient, cost reduces.The present invention devises fast evacuation gas circuit, has the shorter verification quiescent interval, namely requires after completing primary instrument verification, can verify gas by Rapid replacement, in order to verification next time; Have the advantages that verification speed is fast, work efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, Quick tester for transmitter laboratory of the present invention, comprise standard gas generating apparatus 1, two-position three way magnetic valve 2, first three-way pipe 3, instrument check case 4 to be evaluated and differential pressure pick-up 5, the gas outlet of standard gas generating apparatus 1 is connected with the air intake opening of two-position three way magnetic valve 2, a gas outlet of two-position three way magnetic valve 2 is connected with two ports of the first three-way pipe 3 respectively with the air intake opening of instrument check case 4 to be evaluated, and another port of the first three-way pipe 3 is connected with differential pressure sensing.
The present invention also comprises the first two-position two-way solenoid valve 6, pneumatic pump 7 and the second three-way pipe 8, the gas outlet of described instrument check case 4 to be evaluated is connected with the air intake opening of the first two-position two-way solenoid valve 6, the gas outlet of the first two-position two-way solenoid valve 6 is connected with the air intake opening of pneumatic pump 7, and the gas outlet of pneumatic pump 7 is connected with a port of the second three-way pipe 8.
The present invention also comprises the second two-position two-way solenoid valve 9, and described instrument check case 4 to be evaluated offers emptying air intake opening, and emptying air intake opening is connected with the gas outlet of the second two-position two-way solenoid valve 9.
Another gas outlet of two-position three way magnetic valve 2 is connected with another port of the second three-way pipe 8.
Standard gas generating apparatus 1 in the middle of the present invention is existing mature technology, and concrete structure repeats no more.
The port being connected to instrument check case 4, first three-way pipe 3 to be evaluated after the gas outlet of standard gas generating apparatus 1 is connected in series a two-position three way magnetic valve 2 and the first three-way pipe 3 successively by gas piping remaining is connected with differential pressure pickup.Differential pressure pickup is used for the change of gaseous tension in Real-Time Monitoring instrument check case 4 to be evaluated, to judge system running environment and security, and makes action by corresponding control module, safeguards system even running.When the transmitter that the online leakage monitoring of room sulfur hexafluoride gas is reported to the police needs verification to evaluate, put it into instrument check case 4 to be evaluated, these transmitters will complete the evaluation of instrument under the calibrating gas environment generated at standard gas generating apparatus 1, whether accurately comprise measured value, whether reaction velocity meets the requirements, and whether the accuracy of measured value meets expection; The alarm module of monitoring main frame can also be checked whether normal when transmitter is connected with monitoring main frame.
In checking procedure, when the calibrating gas in instrument check case 4 to be evaluated needs varied concentration, or when having tested, need the evacuate air in instrument check case 4 to be evaluated.The present invention also devises fast evacuation gas circuit, to meet the time requirement of shorter verification interval, namely after completing primary instrument verification, can verify gas by Rapid replacement, in order to verification next time.Emptying gas circuit of the present invention is as follows: the emptying air intake opening of instrument check case 4 to be evaluated connects the second two-position two-way solenoid valve 9, have a gas outlet in the bottom of instrument check case to be checked, this gas outlet is connected with the first two-position two-way solenoid valve 6, pneumatic pump 7 and the second three-way pipe 8 in turn by gas piping.When instrument check case 4 to be evaluated needs emptying, the gas in instrument check case 4 to be evaluated is discharged from gas outlet by the first two-position two-way solenoid valve 6, pneumatic pump 7 and the second three-way pipe 8 successively under the effect of pneumatic pump 7.In order to weaken the impact of residual gas in instrument check case 4 to be evaluated, the present invention have also been devised emptying air inlet pipeline, under the effect of pneumatic pump 7, outside air enters instrument check case 4 to be evaluated and then discharges from its gas outlet via the first two-position two-way solenoid valve 6, pneumatic pump 7 and the second three-way pipe 8 after the second two-position two-way solenoid valve 9.
When the calibrating gas flow that standard gas generating apparatus 1 generates is greater than the gas flow of checking box use, unnecessary gas flow is shunted from another passage of two-position three way magnetic valve 2, namely produce overflow, this overflow gas is incorporated to its gas outlet is drained through gas piping, the second three-way pipe 8 again.
The present invention adopts built-in standard gas generating apparatus 1, collection sulfur hexafluoride and numerous measured value of parameters monitoring and testing such as oxygen content and ambient temperature and humidity with one, when transmitter is connected with monitoring main frame, can also verify whether the alarm module of monitoring main frame normally starts.Whether in a word, whether the work that standard gas generating apparatus 1 can evaluate transmitter is reliable, and whether accurately comprise measured value, whether reaction velocity meets the requirements, and whether the accuracy of measured value meets expection, the alarm module of monitoring main frame can also be checked normal.
Standard gas generating apparatus 1 is used for generating the calibrating gas evaluated and verify sulfur hexafluoride on-line monitoring transmitter in other words.The standard source of the gas that the input of its air source inlet is purchased, the calibrating gas of the various concentration of its delivery outlet output verification transmitter.The built-in verification gas generating unit of the present invention, user need not buy special distribution equipment when carrying out instrument check, only need prepare two bottles of gases, and verification is convenient, and cost reduces.
Above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: still can modify to the present invention or equivalent replacement, and not departing from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (1)
1. Quick tester for transmitter laboratory, it is characterized in that: comprise standard gas generating apparatus, two-position three way magnetic valve, the first three-way pipe, instrument check case to be evaluated and differential pressure pick-up, the gas outlet of standard gas generating apparatus is connected with the air intake opening of two-position three way magnetic valve, a gas outlet of two-position three way magnetic valve is connected with two ports of the first three-way pipe respectively with the air intake opening of instrument check case to be evaluated, and another port of the first three-way pipe is connected with differential pressure pick-up;
Also comprise the first two-position two-way solenoid valve, pneumatic pump and the second three-way pipe, the gas outlet of described instrument check case to be evaluated is connected with the air intake opening of the first two-position two-way solenoid valve, the gas outlet of the first two-position two-way solenoid valve is connected with the air intake opening of pneumatic pump, and the gas outlet of pneumatic pump is connected with a port of the second three-way pipe;
Also comprise the second two-position two-way solenoid valve, described instrument check case to be evaluated offers emptying air intake opening, and emptying air intake opening is connected with the gas outlet of the second two-position two-way solenoid valve;
Another gas outlet of described two-position three way magnetic valve is connected with another port of the second three-way pipe.
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| CN201310459250.7A CN103472193B (en) | 2013-09-30 | 2013-09-30 | Quick tester for transmitter laboratory |
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| CN201310459250.7A CN103472193B (en) | 2013-09-30 | 2013-09-30 | Quick tester for transmitter laboratory |
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| CN103472193B true CN103472193B (en) | 2015-06-17 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940965A (en) * | 2014-04-28 | 2014-07-23 | 广东电网公司电力科学研究院 | Device and method for detecting gas transmitting equipment |
| CN105334299A (en) * | 2015-12-15 | 2016-02-17 | 北京雪迪龙科技股份有限公司 | Standard gas generation system and method for dynamically monitoring standard gas |
| CN106092440B (en) * | 2016-08-09 | 2019-03-05 | 江苏方天电力技术有限公司 | A kind of detection device for differential pressure transmitter |
| CN108362827A (en) * | 2018-01-09 | 2018-08-03 | 国网山东省电力公司滨州供电公司 | A kind of detection device for testing substation SF6 working sensor states |
| CN109141782A (en) * | 2018-09-18 | 2019-01-04 | 昆明北方红外技术股份有限公司 | The airtight test of ultralow pressure and gas substitution detector |
| CN110865152A (en) * | 2019-11-28 | 2020-03-06 | 天地（常州）自动化股份有限公司 | Gas sensor aging device for coal mine and detection method |
| CN113933467B (en) * | 2021-10-26 | 2024-02-13 | 国网浙江省电力有限公司电力科学研究院 | Sulfur hexafluoride decomposition product air pressure monitoring device based on gas in-situ detection |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424596A (en) * | 2008-09-26 | 2009-05-06 | 上海电力设备安装有限公司 | Calibration stand and calibration method for SF6 gas density and pressure monitoring device |
| CN101769395A (en) * | 2010-02-09 | 2010-07-07 | 埃德鲁（陕西）机电设备有限公司 | Sulphur hexafluoride gas multi-way needle valve group |
| CN101776163A (en) * | 2010-02-09 | 2010-07-14 | 埃德鲁（陕西）机电设备有限公司 | Sulfur hexafluoride gas controllable multi-pass ball valve group |
| CN201697907U (en) * | 2010-05-18 | 2011-01-05 | 广西电网公司电力科学研究院 | Checking apparatus of SF 6 gas leakage monitoring alarm |
| CN101943691A (en) * | 2010-04-14 | 2011-01-12 | 广西电网公司电力科学研究院 | Device and method for checking SF6 gas leakage monitoring and alarming apparatuses |
| CN102095559A (en) * | 2011-01-07 | 2011-06-15 | 山东电力研究院 | Calibration device of on-line SF6 (sulfur hexafluoride)-O2 leak monitoring alarm |
| CN202083525U (en) * | 2011-04-28 | 2011-12-21 | 常州海立普电力科技有限公司 | On-site detection device of SF6-O2 on-line leakage monitoring alarm instrument |
-
2013
- 2013-09-30 CN CN201310459250.7A patent/CN103472193B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424596A (en) * | 2008-09-26 | 2009-05-06 | 上海电力设备安装有限公司 | Calibration stand and calibration method for SF6 gas density and pressure monitoring device |
| CN101769395A (en) * | 2010-02-09 | 2010-07-07 | 埃德鲁（陕西）机电设备有限公司 | Sulphur hexafluoride gas multi-way needle valve group |
| CN101776163A (en) * | 2010-02-09 | 2010-07-14 | 埃德鲁（陕西）机电设备有限公司 | Sulfur hexafluoride gas controllable multi-pass ball valve group |
| CN101943691A (en) * | 2010-04-14 | 2011-01-12 | 广西电网公司电力科学研究院 | Device and method for checking SF6 gas leakage monitoring and alarming apparatuses |
| CN201697907U (en) * | 2010-05-18 | 2011-01-05 | 广西电网公司电力科学研究院 | Checking apparatus of SF 6 gas leakage monitoring alarm |
| CN102095559A (en) * | 2011-01-07 | 2011-06-15 | 山东电力研究院 | Calibration device of on-line SF6 (sulfur hexafluoride)-O2 leak monitoring alarm |
| CN202083525U (en) * | 2011-04-28 | 2011-12-21 | 常州海立普电力科技有限公司 | On-site detection device of SF6-O2 on-line leakage monitoring alarm instrument |
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