CN2898849Y - Automatic checking platform of movable gas relay - Google Patents

Automatic checking platform of movable gas relay Download PDF

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Publication number
CN2898849Y
CN2898849Y CN 200620019472 CN200620019472U CN2898849Y CN 2898849 Y CN2898849 Y CN 2898849Y CN 200620019472 CN200620019472 CN 200620019472 CN 200620019472 U CN200620019472 U CN 200620019472U CN 2898849 Y CN2898849 Y CN 2898849Y
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CN
China
Prior art keywords
test
gas relay
valve
volume
switch
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Expired - Fee Related
Application number
CN 200620019472
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Chinese (zh)
Inventor
冉正华
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冉正华
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Priority to CN 200620019472 priority Critical patent/CN2898849Y/en
Application granted granted Critical
Publication of CN2898849Y publication Critical patent/CN2898849Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

An automatic checking platform of movable gas relay comprises an oil tank connected with the framework of a check table. A manual elevation table and a microcomputer detection/control box are also arranged on the framework. The entry end of the air relay under detection is in parallel connection with a flow speed detector, a volume measurement apparatus and a sealing testing device. The exit end is connected with the oil tank through manual clamps, flow speed enforcement valve, and liquid indicator in turn. The insulate testing device fixed onto the check table and the power frequency anti-voltage testing device are connected with flow speed signal terminal on the air relay under detection as well as the volumetric signal terminal respectively, through testing wire clamps. The check table is suitable for automatic checking platform of movable gas relay used to test the transformer installed in electricity testing organism, factory or substation. The automatic checking platform provided by the utility model is able to measure the flow speed of the air relay rapidly, while detecting air relays as either domestic or foreign products with different diameters.

Description

The automatic checking table of mobile gas relay
Technical field:
The utility model relates to transformer gas relay calibration equipment, the automatic checking table of particularly a kind of mobile gas relay.
Background technology: present existing this type of tester, owing to adopt pressure differential method to carry out exploratory measurement, just can measure the result through excess pressure and flow velocity unit conversion and test of many times.Thereby accuracy of measurement is poor, test procedure complexity, inefficiency.
Summary of the invention:
Deficiency at above-mentioned prior art existence, the utility model provides a kind of mobile gas relay automatic checking table, it has a fuel tank that is connected on the checking table framework, hand-operated lifting platform and microcomputer measuring and controlling case also are installed on the checking table framework, tested gas relay is installed on the lifting table, it is characterized in that: the entrance point of tested gas relay is parallel with the flow velocity test unit, volumetric measuring device, seal test device, endpiece is by the manual binding clasp of right plate washer warp successively, flow velocity is carried out valve, liquid level gauge is connected to fuel tank, be fixed on insulation tester and power frequency withstand test device on the checking table framework respectively by the test wire clamp and be connected with the plethysmogram signal terminal by the flow velocity signal terminal on the test specimen gas relay, wherein
A, flow velocity test unit have a flowmeter that is connected with the checking table framework, and this flowmeter entrance point is through pressure unit, electronic
Execution valve, electric frequency conversion regulation oil pump are connected with fuel tank, and endpiece is by measuring oil pipe, right baffle-plate and being connected by the entrance point of test specimen gas relay;
B, plethysmometer have a volumometer graduated cylinder that is connected with the checking table framework, and this volumometer graduated cylinder one end is carried out valve through volume and connected tested gas relay entrance point, and the other end is connected to fuel tank through volume oil return valve and oil return sensor;
C, seal test device have an accumulator that is installed in checking table framework bottom, and this accumulator one end is carried out valve through electric contact pressure switch, pressure-regulating valve, sealing and is connected with oil pipe, and the other end is connected with electric air compressor by retaining valve;
Liquid level gauge in D, the said apparatus, flow velocity are carried out valve, test wire clamp, flowmeter, pressure unit, sealing and are carried out between valve, electric contact pressure switch, electric air compressor, motor valve, electric frequency conversion speed governing type oil pump, volume inlet valve, volume transmitter, volume delivery valve, scavenging air valve, oil extraction sensor, volume oil level device, insulation tester, power frequency withstand test device and the microcomputer measuring and controlling case respectively that the line by the transmission pulse signal links to each other.
Line by the transmission pulse signal between above-mentioned insulation tester and test wire clamp and the microcomputer measuring and controlling case links to each other.
Being connected with the line that transmits pulse signal between above-mentioned power frequency withstand test device and test wire clamp and the microcomputer measuring and controlling case links to each other.
The exhaust nozzle of above-mentioned tested gas relay is connected to fuel tank through scavenging air valve and the oil extraction sensor on the checking table.
The LCDs, power switch, starting switch, mobile reservoir interface, the mini-printer that show gas relay flow velocity, volume, sealing, electric insulation test and power frequency withstand test are arranged on the above-mentioned microcomputer measuring and controlling case panel.
The simulation synoptic diagram that shows gas relay flow velocity, volume, sealing, electric insulation test and power frequency withstand test process is arranged on the above-mentioned LCDs, and the window of selecting gas relay model, caliber, flow velocity and volume test number (TN), seal test pressure grade and test period, electric insulation test and power frequency withstand test.
The insulated switch of selecting gas relay and pilot lamp, industrial frequency withstand voltage switch and pilot lamp, test switch and pilot lamp, flow rate switch and pilot lamp, volume switch and pilot lamp, enclosed switch and pilot lamp, alarm lamp are arranged on the above-mentioned LCDs.
The automatic checking table that the utility model provides adopts oil pump and flowmeter steady state measurement new technology in the pipeline of test, can directly carry out follow-on test to gas relay, when the gas relay of the various bores of test, need not change caliber and all can reach measuring transformer fault flow velocity fast, can satisfy the check of projects such as domestic and international gas relay flow velocity, volume, sealing, insulation and power frequency withstand test; Has high efficiency, the measuring accuracy height, volume is moderate, convenient transportation, cost economic is reasonable, operation, safeguard simple, can satisfy send out, for, with electric unit at the automatic checking table that testing laboratory uses, be applicable to the automatic checking table of mobile gas relay of the transformer detection use of power test mechanism or generating plant, transformer station's installation.The automatic check device that the utility model provides can quick measurement gas relay flow velocity when the domestic and international gas relay of the various bores of test.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the microcomputer measuring and controlling case LCDs external view among Fig. 1.
Each parts label is among Fig. 1-2: fuel tank 1, oil level indicator 2, ball valve 3, filtrator 4, electric frequency conversion regulation oil pump 5, motor valve 6, flowmeter 7, accumulator 8, retaining valve 9, electric air compressor 10, pressure-regulating valve 11, valve 12 is carried out in sealing, tracheae 13, pressure unit 14, oil pipe 15, insulation tester 16, power frequency withstand test device 17, checking table framework 18, power switch 19, start button 20, mobile reservoir interface 21, mini-printer 22, microcomputer measuring and controlling case 23, LCDs 24, scavenge pipe 25, liquid level gauge 26, electric contact pressure switch 27, flow velocity is carried out valve 28, manual binding clasp 29, right baffle plate 30, test wire clamp 31, by test specimen gas relay 32, the exhaust nozzle 33 of gas relay, right baffle-plate 34, exhaust hose 35, scavenging air valve 36, volume inlet valve 37, oil extraction sensor 38, volumetric measuring device 39, volume delivery valve 40, volume sensor 41, volume oil level device 42, hand-operated lifting platform 43, insulated switch and pilot lamp 44, industrial frequency withstand voltage switch and pilot lamp 45, test switch and pilot lamp 46, flow rate switch and pilot lamp 47, volume switch and pilot lamp 48, enclosed switch and pilot lamp 49 and alarm lamp 50.
Embodiment
As accompanying drawing 1-3, fuel tank 1 is connected with checking table general frame 18, and hand-operated lifting platform 43 is installed on the food tray of general frame, is installed on the lifting table 43 by the test specimen gas relay; Manually binding clasp 29 is installed on the combination beam of general frame, the oil inlet pipe that connects fuel tank is guided to checking table top and is connected by the entrance point of test specimen gas relay 32 through ball valve 3, filtrator 4, electric frequency conversion regulation oil pump 5, motor valve 6, flowmeter 7, and manually binding clasp passes through right plate washer 30 and is connected by the endpiece of test specimen gas relay; The oil mass that oil level indicator 2 shows in the fuel tank.
Accumulator 8 one sides that are installed in checking table general frame 18 bottoms are connected with oil pipe 15 through electric contact pressure switch 27, pressure-regulating valve 11, sealing execution valve 12, tracheae 13, and opposite side is connected with electric air compressor 10 by retaining valve 9.
Volumetric measuring device 39 1 ends are connected with measurement oil pipe 37 through volume inlet valve 38; Opposite side is connected with fuel tank 1 through volume oil level device 42 by volume delivery valve 40.
Be installed on the checking table scavenging air valve 36 1 sides through exhaust hose 35 be connected by the exhaust nozzle on the test specimen gas relay 32 33; Opposite side is connected with fuel tank 1 by oil extraction sensor 38.
Be installed in insulation tester 16 and power frequency withstand test device 17 on the checking table respectively hang oneself test wire folder 31 be connected with the plethysmogram signal terminal by the flow velocity signal terminal of test specimen gas relay.
On the microcomputer measuring and controlling case display screen 24, be converted to flow velocity by flowmeter 7 through microcomputer and be presented on the flow velocity LCDs; Being converted to pressure by pressure unit 14 through microcomputer shows; Volume transmitter 41 is converted to volume through microcomputer and shows; Being converted to insulation values by insulation tester 16 through microcomputer shows; Being converted to the industrial frequency withstand voltage value by power frequency withstand test device 17 through microcomputer shows.Power switch 19, start button 20, mobile reservoir interface 21, mini-printer 22 also are housed on the microcomputer measuring and controlling case.
Also have insulated switch and pilot lamp 44, industrial frequency withstand voltage switch and pilot lamp 45, test switch and pilot lamp 46, flow rate switch and pilot lamp 47, volume switch and pilot lamp 48, enclosed switch and pilot lamp 49 and alarm lamp 50 on the LCDs 24.
The course of work is described below: test forward direction fuel tank 1 injects 25 of about 50 liters of cleanings #Transformer oil is to oil level indicator 2 scale mark normal positions.
Test is prepared:
To be placed on the hand-operated lifting platform of testing table middle part by the test specimen gas relay, regulate by test specimen gas relay 32 to right baffle-plate 34 centers by rotating handwheel, clockwise direction rotation manual binding clasp 29 makes right baffle plate 30 to by the test specimen right side test specimen gas relay 32 being clamped; Exhaust hose 35 is connected on the exhaust nozzle 33 of gas relay, screw loosening 1~2 circle of exhaust nozzle; To test flow velocity signal terminal or the plethysmogram signal terminal that wire clamp 31 is clipped in gas relay according to pilot project.
Energized during test, power turn-on switch 19, the power light during unlatching on the power switch is bright.The start button 20 that closes, LCDs 24 is bright.Electric air compressor 10 starts to accumulator 8 inflations and shows force value; Test preliminary work finishes.
Select by the menu on the display screen according to pilot project.To adopting drop-down menu tabulation formula to show different numerical value in the selection of model, caliber, flow velocity and volume cyclic test number of times, seal test pressure, insulation and industrial frequency experiment electric pressure and time, select to get final product with the required numerical value of click for operating personnel.Determine to show on the display screen after the pilot project this project content of the test.Now introduce respectively:
1) flow velocity test:
With the flow rate switch on the click display screen 24 47, flow velocity test pilot lamp is bright.On drop-down list formula menu, select by the test specimen model or import voluntarily: maximum three times by test specimen model, pipe diameter, cyclic test number of times.Click the test switch 46 on the display screen 24, flow velocity on-test, voice suggestion simultaneously: " flow velocity on-test, cyclic test * inferior ".Motor valve 6 is opened, and frequency control oil pump 5 begins to cut out scavenging air valve 36 with the liquid of low discharge when pipeline flows to 38 actions of oil extraction sensor by frequency control way.Flow velocity is carried out valve 28 and is opened, frequency control oil pump 5 began progressively to increase fluid flow by frequency control way when the liquid continuation flowed to liquid level gauge 26 actions to pipeline, simultaneously the fluid floies in the flowmeter 7 progressively increase and from 0~*. * * flow velocity of meter per second shows measured value at display screen, minimum resolution 0.01 meter per second.Up to by the flow velocity contact conducting of test specimen gas relay 32, the measured value when flowmeter 7 shows the conductings of flow velocity contact simultaneously.Motor valve 6 quick closedowns, oil pump 5 is shut down.According to selecting test number (TN) cyclic test 1~3 time, the original demonstration measured value automatic clear of flowmeter 7 during each cyclic test.Calculating mean value and test findings printed by mini-printer 22 after the off-test, or store on the special mobile reservoir by mobile reservoir interface 21.
2) volume test:
With the volume switch 48 on the click display screen, volume test pilot lamp is bright.On drop-down list formula menu, select by test specimen cyclic test number of times: maximum three times.Click test switch 47, and voice suggestion arranged: " volume on-test, cyclic test * inferior ", motor valve 6 is opened, frequency control oil pump 5 flows to oil extraction sensor 38 actions with the liquid of low discharge to pipeline by frequency control way, and motor valve 6 is closed.Volume inlet valve 37 is opened, and volume delivery valve 40 cuts out simultaneously.Liquid progressively flows to volumetric measuring device 39, and volume sensor 41 begins to measure, the volume in the volumetric measuring device from 0~* * *. * cubic centimetre shows measured value, 1.0 cubic centimetres of minimum resolutions; And show the oil level of volumetric measuring device simultaneously, up to by another of test specimen gas relay 32 to the conducting of volume contact, the measured value when volume sensor 41 shows the conductings of volume contact.Volume inlet valve 37 cuts out, and volume delivery valve 40 is opened.According to selecting test number (TN) cyclic test 1~3 time, the original demonstration measured value automatic clear of volume sensor 41 during each cyclic test.The liquid of each circulation time volumetric measuring device 39 flows to fuel tank 1 to be tested when volume oil level device 42 is failure to actuate next time again.Calculating mean value and test findings printed by mini-printer 22 after the off-test, or store on the special mobile reservoir by mobile reservoir interface 21.
3) leakage test:
Click enclosed switch 49 on display screen, the leakage test pilot lamp is bright.Selection pressure trial value and time on drop-down list formula menu.Start test switch 46 on the display screen, voice suggestion simultaneously: " leakage test begins; time * * minute ", motor valve 6 is opened, speed governing frequency conversion type oil pump 5 cuts out scavenging air valve 36 with the liquid of low discharge by frequency control way when pipeline flows to 43 actions of oil extraction sensor, motor valve 6 is closed.Sealing load transmitter 14 shows that time counter picks up counting when adjusting the seal test pressure value.When time counter meter timing from 0~* * during minute setting valve, off-test.After the off-test test findings is printed by mini-printer 22, or stored on the special mobile reservoir by mobile reservoir interface 21.
4) Insulation Test:
Click Insulation Test switch 44 on display screen, the Insulation Test pilot lamp is bright.Select the insulation voltage trial value.Start test switch 46 on the display screen, voice suggestion simultaneously: " Insulation Test begins, and 1 minute time, please notes safety ".Repeat two times, begin after a while insulation is tested.Time counter picks up counting, when the time, the timing of counter meter was from 0~1 minute, and off-test.After the off-test test findings is printed by mobile mini-printer 22, or stored on the special mobile reservoir by reservoir interface 21.
5) power frequency withstand test:
Click power frequency withstand test switch 45 on display screen, the power frequency withstand test pilot lamp is bright.Select the power frequency withstand test value.Start test switch 46 on the display screen, voice suggestion simultaneously: " power frequency withstand test begins, and 1 minute time, please notes safety ".Repeat two times, begin after a while industrial frequency withstand voltage is tested.Time counter picks up counting, when the time, the timing of counter meter was from 0~1 minute, and off-test.After the off-test test findings is printed by mini-printer 22, or stored on the special mobile reservoir by mobile reservoir interface 21.
All test findings in above-mentioned process of the test are printed by mini-printer 22, or store on the special mobile reservoir and be created on automatically in the corresponding column of test report by mobile reservoir interface 21.
In flow velocity, volume and leakage test process, LCDs simulation drawing upper reaches illuminated star moves along corresponding pipeline circulation, and each unlatching or closed condition of carrying out valve is presented on the LCDs synchronously in real time.
Select the editor on the display screen after the off-test, show the test report form on the display screen.Master data and preservations such as input report number, censorship organization, manufacturer's title, factory number, the date of production are according to whether needs are printed.Click " printing " key when needing to print and print test report.Finish the back and click " logging off ", experiment work is all finished.
After test finished, counterclockwise the rotation manual binding clasp 29, unclamped and unloaded gas relay and stand upside down on the hand-operated lifting platform.Screw the screw rod and the screw of gas relay exhaust nozzle, recover the gas relay top cover, Total Test work is finished.

Claims (7)

1. mobile gas relay pressure relief valve checking table, one fuel tank that is connected on the checking table framework (18) is arranged, hand-operated lifting platform (43) and microcomputer measuring and controlling case also are installed on the checking table framework, tested gas relay (32) is installed on the lifting table (43), it is characterized in that: the entrance point of tested gas relay is parallel with the flow velocity test unit, volumetric measuring device, seal test device, endpiece is by the manual binding clasp (29) of right plate washer (30) warp successively, flow velocity is carried out valve (28), liquid level gauge (26) is connected to fuel tank (1), be fixed on insulation tester (16) and power frequency withstand test device (17) on the checking table framework respectively by test wire clamp (31) and be connected with the plethysmogram signal terminal by the flow velocity signal terminal on the test specimen gas relay (32), wherein
A, flow velocity test unit have a flowmeter (7) that is connected with checking table framework (18), this flowmeter entrance point is connected with fuel tank (1) through pressure unit (14), motor valve (6), electric frequency conversion regulation oil pump (5), and endpiece is by measuring oil pipe (37), right baffle-plate (34) and being connected by the entrance point of test specimen gas relay (32);
B, plethysmometer have a volumometer graduated cylinder (40) that is connected with the checking table framework, this volumometer graduated cylinder one end is carried out valve (38) through volume and is connected tested gas relay entrance point, and the other end is connected to fuel tank (1) through volume oil return valve (41) and oil return sensor (43);
C, seal test device have an accumulator (8) that is installed in checking table framework (18) bottom, this accumulator one end is carried out valve (12) through electric contact pressure switch (27), pressure-regulating valve (11), sealing and is connected with oil pipe (15), and the other end is connected with electric air compressor (10) by retaining valve (9);
D, liquid level gauge in the said apparatus (26), flow velocity is carried out valve (28), test wire clamp (31), flowmeter (7), pressure unit (13), valve (12) is carried out in sealing, electric contact pressure switch (27), electric air compressor (10), motor valve (6), electric frequency conversion speed governing type oil pump (5), volume inlet valve (38), volume transmitter (42), volume delivery valve (41), scavenging air valve (36), oil extraction sensor (39), volume oil level device (43), insulation tester (16), link to each other by the line that transmits pulse signal respectively between power frequency withstand test device (17) and the microcomputer measuring and controlling case (23).
2, mobile gas relay pressure relief valve checking table as claimed in claim 1 is characterized in that: insulation tester (16) and the test wire clamp (31) with microcomputer measuring and controlling case (23) between by the transmission pulse signal line link to each other.
3, mobile gas relay pressure relief valve checking table as claimed in claim 1 is characterized in that: power frequency withstand test device (17) and the test wire clamp (31) with microcomputer measuring and controlling case (23) between be connected with the transmission pulse signal line link to each other.
4, mobile gas relay pressure relief valve checking table as claimed in claim 1 is characterized in that: the exhaust nozzle (33) of tested gas relay (32) is connected to fuel tank (1) through scavenging air valve (36) and the oil extraction sensor (38) on the checking table.
5, mobile gas relay pressure relief valve checking table as claimed in claim 1 is characterized in that: the LCDs (24), power switch (19), starting switch (20), mobile reservoir interface (21), the mini-printer (22) that show gas relay flow velocity, volume, sealing, electric insulation test and power frequency withstand test are arranged on microcomputer measuring and controlling case (23) panel.
6, mobile gas relay pressure relief valve checking table as claimed in claim 5, it is characterized in that: the simulation synoptic diagram that shows gas relay flow velocity, volume, sealing, electric insulation test and power frequency withstand test process is arranged on the LCDs (24), and the window of selecting gas relay model, caliber, flow velocity and volume test number (TN), seal test pressure grade and test period, electric insulation test and power frequency withstand test.
7, mobile gas relay pressure relief valve checking table as claimed in claim 5 is characterized in that: the insulated switch of selection gas relay (32) and pilot lamp (44), industrial frequency withstand voltage switch and pilot lamp (45), test switch and pilot lamp (46), flow rate switch and pilot lamp (47), volume switch and pilot lamp (48), enclosed switch and pilot lamp (49), alarm lamp (50) are arranged on the LCDs (24).
CN 200620019472 2006-04-24 2006-04-24 Automatic checking platform of movable gas relay Expired - Fee Related CN2898849Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620019472 CN2898849Y (en) 2006-04-24 2006-04-24 Automatic checking platform of movable gas relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620019472 CN2898849Y (en) 2006-04-24 2006-04-24 Automatic checking platform of movable gas relay

Publications (1)

Publication Number Publication Date
CN2898849Y true CN2898849Y (en) 2007-05-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620019472 Expired - Fee Related CN2898849Y (en) 2006-04-24 2006-04-24 Automatic checking platform of movable gas relay

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Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101846720A (en) * 2010-04-23 2010-09-29 厦门大一互科技有限公司 Test method for a cast-type mutual inductor for SF6 gas cabinet
CN103344910A (en) * 2013-06-25 2013-10-09 刘赵 Gas relay check meter
CN103969017A (en) * 2014-05-13 2014-08-06 清华大学苏州汽车研究院(相城) Manual releasing mechanism for car crash dummy calibration test
CN106643854A (en) * 2016-12-27 2017-05-10 新乡航空工业(集团)有限公司 Instrument clamping table

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101846720A (en) * 2010-04-23 2010-09-29 厦门大一互科技有限公司 Test method for a cast-type mutual inductor for SF6 gas cabinet
CN103344910A (en) * 2013-06-25 2013-10-09 刘赵 Gas relay check meter
CN103344910B (en) * 2013-06-25 2015-08-12 刘赵 Buchholz relay check meter
CN103969017A (en) * 2014-05-13 2014-08-06 清华大学苏州汽车研究院(相城) Manual releasing mechanism for car crash dummy calibration test
CN106643854A (en) * 2016-12-27 2017-05-10 新乡航空工业(集团)有限公司 Instrument clamping table

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070509

Termination date: 20120424