CN201732149U - Calibration console of quick-acting oil pressure relay - Google Patents
Calibration console of quick-acting oil pressure relay Download PDFInfo
- Publication number
- CN201732149U CN201732149U CN2010202572888U CN201020257288U CN201732149U CN 201732149 U CN201732149 U CN 201732149U CN 2010202572888 U CN2010202572888 U CN 2010202572888U CN 201020257288 U CN201020257288 U CN 201020257288U CN 201732149 U CN201732149 U CN 201732149U
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- oil pressure
- pressure relay
- action oil
- relay
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- Expired - Fee Related
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Abstract
The utility model discloses a calibration console of a quick-acting oil pressure relay, which comprises a testing pipeline system of a quick-acting oil pressure relay and a computer control system, wherein the testing pipeline system of the quick-acting oil pressure relay is formed by sequentially connecting an air compressor, an air inlet of a calibration console, a proportional valve, an air-intake electromagnetic valve, a pressure testing tank with a pressure sensor and a deflation electromagnetic valve, a working platform and the quick-acting oil pressure relay to be measured by air passages. The computer control system is respectively and electrically connected with the proportional valve, the pressure sensor, the deflation electromagnetic valve and the quick-acting oil pressure relay to be measured. The utility model utilizes the computer control system, adopts an air-pressure regulation mode and achieves the aim of checking the sealing and movement properties of the quick-acting oil pressure relay. Compared with a traditional oil pressurization mode, the utility model has the advantages of simple and convenient operation, high checking efficiency, high checking accuracy, accurate testing, good repeatability, no pollution, sanitation, environmental protection and the like and finishes the test of the movement property and the sealing performance automatically.
Description
Technical field
The utility model relates to the calibration equipment of quick-action oil pressure relay.
Background technology
At present, in the transformer of the fluid insulation that electric system is used, be extensive use of a kind of novel oil tank of transformer pressure protective relaying device, i.e. quick-action oil pressure relay.It is to utilize the dynamic pressure speedup that causes owing to accident in the fuel tank to move.The oil pressure rate of rise is fast more, moves rapid more.Because the propagation rate of oil pressure ripple in transformer oil be exceedingly fast, so the quick-action oil pressure relay is quick on the draw, action is accurately sent signal rapidly and is cut off the electricity supply.If the quick-action oil pressure relay is installed,, improve the safe reliability of power equipment operation in case the pernicious short trouble of inner generation can effectively prevent fuel tank explosion on transformer.
The reliability of quick-action oil pressure relay depends on the accurate detection to the quick-action oil pressure relay.How accurately checking the parameters of quick-action oil pressure relay to become related personnel's extensive concern and questions of common interest such as Operation of Electric Systems, maintenance, test, also is to be engaged in the problem that electric power checkout equipment development and production producer pays close attention to.Quick-action oil pressure relay calibration equipment is the specialized equipment of the employed quick-action oil pressure relay of verification electric system.Yet, existing quick-action oil pressure relay calibration equipment mainly contains following problem: 1, aspect pressuring method, present stage mainly adopts the transformer oil pressing mode, this mode troublesome poeration, efficient is low, and transformer oil remains in and causes testing laboratory dirty on the quick-action oil pressure relay easily, contaminated environment.2, in configuration aspects, because existing quick-action oil pressure relay is when carrying out sealing property and acting characteristic verification, different mining according to quick-action oil pressure relay bore is tried jar with not isometric pressure, generally need to adopt 3～4 pressure examination jars could satisfy the verification of quick-action oil pressure relay commonly used, make existing quick-action oil pressure relay calibration equipment complex structure, bulky, operating process is loaded down with trivial details, and can't verification to the quick-action oil pressure relay of part bore; In addition, quick-action oil pressure relay to be measured all adopts manual operations when clamping, with bolt the flange of quick-action oil pressure relay to be measured and pressure examination jar is coupled together, and the verification of finishing a quick-action oil pressure relay needs labour intensity height, length consuming time repeatedly are installed, work efficiency is extremely low, and the clamping unbalance stress, easily gas leakage influences test accuracy; Moreover the quick-action oil pressure relay of different installation dimensions need be joined different assembly flanges, and flange is wide in variety, and it is big to take up room.3, aspect data read, adopt in the checking procedure and manually read, because moving oil pressure relay moves to contact from the beginning verification, time is shorter, particularly to greater than the pressure climbing speed of 50kPa/s the time, manually at all can't gather and reading of data less than 1 second actuation time; For the pressure climbing speed that is lower than 50kPa/s, error actuation time that also exists different personnel's reaction time difference to cause, these factors certainly will influence the verification accuracy and the repeatability of quick-action oil pressure relay, and measuring accuracy is low, and the project that has at all can't verification.
The utility model content
The purpose of this utility model is to provide a kind of quick-action oil pressure relay checking table, utilize the mode of air pressure adjustment to reach the purpose of sealing and acting characteristic verification, and volume is little, dependable performance, automaticity height.
For achieving the above object, the utility model can be taked following technical proposals:
The utility model quick-action oil pressure relay checking table, comprise quick-action oil pressure relay test pipe system, be used to control the computer control system of described quick-action oil pressure relay test pipe system, described quick-action oil pressure relay test pipe system is to be connected and composed by air compressor, checking table air intake opening, proportioning valve, air inlet solenoid valve, the pressure test jar that is provided with pressure transducer and pressure-releasing electromagnetic valve, workbench and quick-action oil pressure relay to be measured gas circuit successively; Described computer control system is to be made of the single-chip microcomputer signal acquiring system and the industrial control computer that connect by data line, and described single-chip microcomputer signal acquiring system is electrically connected with described proportioning valve, pressure transducer, pressure-releasing electromagnetic valve and quick-action oil pressure relay to be measured respectively.
Gas circuit between described workbench and the quick-action oil pressure relay to be measured connects, and is to utilize the electronic hold-down mechanism that is arranged on the workbench that quick-action oil pressure relay to be measured is installed on the counter flange of workbench by the crossover sub sealing.
Advantage of the present utility model is: utilize computer control system, adopt the air pressure adjustment mode, reach purpose to sealing of quick-action oil pressure relay and acting characteristic verification, compare with existing oily pressuring method, easy and simple to handle, verification efficient height, automatic execution characteristic and experiments of sealing performance, thoroughly solved in the past by the manual read and got tensimeter numerical value and manual time-keeping and the low problem of measuring accuracy that causes, have checking precision height, test accurately, advantage such as good reproducibility, and pollution-free, hygienic environment-protecting.
Adopt electronic hold-down mechanism, and, realized only using of easy clamping and the test of a pressure test jar all kinds quick-action oil pressure relay by counter flange and crossover sub.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left TV structure synoptic diagram of Fig. 1.
Fig. 3 is the backsight structural representation of Fig. 1.
Embodiment
As shown in Figure 1 to Figure 3, quick-action oil pressure relay checking table described in the utility model, comprise quick-action oil pressure relay test pipe system, be used to control the computer control system of described quick-action oil pressure relay test pipe system, described quick-action oil pressure relay test pipe system is to be connected and composed by air compressor, checking table air intake opening 1, proportioning valve 2, air inlet solenoid valve 3, the pressure test jar 6 that is provided with pressure transducer 4 and pressure-releasing electromagnetic valve 5, workbench 7 and quick-action oil pressure relay 8 to be measured gas circuit successively; Gas circuit between described workbench 7 and the quick-action oil pressure relay 8 to be measured connects, and is to utilize the electronic hold-down mechanism 9 that is arranged on the workbench 7, and quick-action oil pressure relay 8 to be measured is installed on the counter flange 10 of workbench 7 by the crossover sub sealing.Described computer control system is to constitute by single-chip microcomputer signal acquiring system and industrial control computer that 485 buses connect, and described single-chip microcomputer signal acquiring system is electrically connected with aforementioned proportion valve 2, pressure transducer 4, pressure-releasing electromagnetic valve 5 and quick-action oil pressure relay 8 to be measured respectively.The quick-action oil pressure relay checking parameter that this computer control system is provided with according to the user, the break-make of control air inlet solenoid valve 3 and the voltage of proportioning valve 2, the quick-action oil pressure relay 8 to be measured that satisfies different bores, different model when verification to the demand of pressure raising speed, and the pressure signal of real time record pressure transducer 4 collections, realize acting characteristic and experiments of sealing performance.
The utility model to the checking procedure of moving oil pressure relay 8 to be measured is:
The first step: being installed of quick-action oil pressure relay 8 to be measured.
As shown in Figure 1 to Figure 3, press the release button on the panel 11, the depression bar body on electronic hold-down mechanism 9 piston rod tops is up, with quick-action oil pressure relay 8 to be measured, be placed on the counter flange 10 of workbench 7 by crossover sub and O-ring seal and centering, by the button that compresses on the panel 11, electronic hold-down mechanism compresses quick-action oil pressure relay 8 to be measured automatically.
Second step: the verification of quick-action oil pressure relay acting characteristic to be measured.
Open the power supply and the valve of air compressor, open the start button on the panel 11, computer control system starts, after the computer control system startup is finished, automatically open the system management software, newly-built verification with mouse-click screen upper left quarter, essential information according to prompting input quick-action oil pressure relay 8 to be measured, deposit after input is finished and withdraw from, under main interface, click the beginning verification button in the screen lower left corner, the single-chip microcomputer signal acquiring system keeps the constant compression force climbing speed according to the aperture of the pressure climbing speed control ratio valve of setting 2, and pick up counting, whether the data of monitor force sensor 4 are consistent with the setting climbing speed in real time simultaneously, by gathering the contact state of quick-action oil pressure relay 8 to be measured, stop timing and close air inlet solenoid valve 3 and open pressure-releasing electromagnetic valve 5 and finish verification when detecting the contact state variation, the mistiming that stops timing of picking up counting to is the actuation time of relevant pressure climbing speed correspondence, and check results is shown to the verification interface.
The 3rd step: quick-action oil pressure relay 8 experiments of sealing performance to be measured
Computer control system is adjusted to pressure test jar 6 internal pressure passing ratio valves 2 near the given predetermined sealing load value according to the leakage test parameter of setting, after internal pressure stabilises, record current pressure value shows as the sealing initial value preserves and beginning pressurize timing.To the test duration time, record current pressure value is preserved for the sealing final value and is shown.Industrial control computer calculates percolation ratio automatically, and judges according to percolation ratio whether the sealing property of quick-action oil pressure relay 8 to be measured is qualified, and the sealing property test is finished, and after all verifications are finished, clicks preservation, and checking data is saved in the Computer Database.
Claims (2)
1. quick-action oil pressure relay checking table, comprise quick-action oil pressure relay test pipe system, be used to control the computer control system of described quick-action oil pressure relay test pipe system, it is characterized in that: described quick-action oil pressure relay test pipe system is to be connected and composed by air compressor, checking table air intake opening (1), proportioning valve (2), air inlet solenoid valve (3), the pressure test jar (6) that is provided with pressure transducer (4) and pressure-releasing electromagnetic valve (5), workbench (7) and quick-action oil pressure relay to be measured (8) gas circuit successively; Described computer control system is to be made of the single-chip microcomputer signal acquiring system and the industrial control computer that connect by data line, and described single-chip microcomputer signal acquiring system is electrically connected with described proportioning valve (2), pressure transducer (4), pressure-releasing electromagnetic valve (5) and quick-action oil pressure relay to be measured (8) respectively.
2. quick-action oil pressure relay checking table according to claim 1, it is characterized in that: the gas circuit between described workbench (7) and the quick-action oil pressure relay to be measured (8) connects, and is to utilize the electronic hold-down mechanism (9) that is arranged on the workbench (7) that quick-action oil pressure relay to be measured (8) is installed on the counter flange (10) of workbench (7) by the crossover sub sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202572888U CN201732149U (en) | 2010-07-14 | 2010-07-14 | Calibration console of quick-acting oil pressure relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202572888U CN201732149U (en) | 2010-07-14 | 2010-07-14 | Calibration console of quick-acting oil pressure relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201732149U true CN201732149U (en) | 2011-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202572888U Expired - Fee Related CN201732149U (en) | 2010-07-14 | 2010-07-14 | Calibration console of quick-acting oil pressure relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201732149U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336242A (en) * | 2013-06-24 | 2013-10-02 | 国家电网公司 | Quick operating relay calibration method for transformer |
| CN104076311A (en) * | 2014-06-03 | 2014-10-01 | 广东电网公司电力科学研究院 | Verification system and method of quick-acting oil pressure relay verification platform for transformer |
| CN107478987A (en) * | 2017-08-30 | 2017-12-15 | 国网辽宁省电力有限公司电力科学研究院 | A kind of quick oil pressure relay check system |
-
2010
- 2010-07-14 CN CN2010202572888U patent/CN201732149U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336242A (en) * | 2013-06-24 | 2013-10-02 | 国家电网公司 | Quick operating relay calibration method for transformer |
| CN104076311A (en) * | 2014-06-03 | 2014-10-01 | 广东电网公司电力科学研究院 | Verification system and method of quick-acting oil pressure relay verification platform for transformer |
| CN104076311B (en) * | 2014-06-03 | 2017-04-12 | 广东电网公司电力科学研究院 | Verification system and method of quick-acting oil pressure relay verification platform for transformer |
| CN107478987A (en) * | 2017-08-30 | 2017-12-15 | 国网辽宁省电力有限公司电力科学研究院 | A kind of quick oil pressure relay check system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20190714 |