CN209992621U - SF6 density is calibration equipment for relay - Google Patents
SF6 density is calibration equipment for relay Download PDFInfo
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- CN209992621U CN209992621U CN201920721789.8U CN201920721789U CN209992621U CN 209992621 U CN209992621 U CN 209992621U CN 201920721789 U CN201920721789 U CN 201920721789U CN 209992621 U CN209992621 U CN 209992621U
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Abstract
The utility model discloses a SF6 density is calibration equipment for relay, including the outer housing, the bottom inner wall of outer housing has the battery through the screw connection, the bottom inner wall of outer housing is provided with standard detector, and the top outer wall of outer housing opens and have the display hole, and the side inner wall in display hole is provided with the display, standard detector's pressure release end is connected with the pressure release pipe, and the side outer wall of pressure release pipe is provided with the residual air and detects the chamber, and the top inner wall in residual air detection chamber is provided with pressure sensor, standard detector's the end of giving vent to anger is connected with first air duct, and the one end of first air duct is provided with relay coupling mechanism. The utility model discloses make the staff can just extract the intake pipe after the residual air has been exhausted, improved the security that the calibration equipment used, prevent staff's maloperation, further improvement the security that the calibration equipment used, can check-up a plurality of relays simultaneously, made things convenient for the operation, improved the efficiency of check-up.
Description
Technical Field
The utility model relates to a density relay technical field especially relates to a SF6 check device for density relay.
Background
The SF6 density relay is a relay for monitoring the leakage of gas from a sealed container, SF6 gas is widely used as an insulating and arc extinguishing medium in high-voltage electrical equipment due to excellent insulating and arc extinguishing characteristics and stable chemical properties, and the insulating strength and the arc extinguishing capability of the electrical equipment are mainly determined by the density of the SF6 gas.
Through retrieval, the Chinese patent with the application number of CN201820910311.5 discloses an SF6 density relay checking device, which comprises a density relay body. The SF6 density relay checking device in the patent has the following defects: after the verification of the verification device is finished, when SF6 gas in the discharge pipeline is exhausted, workers cannot accurately know the amount of residual SF6 gas in the pipeline, and then cannot accurately pull out the air inlet pipe, so that the use safety of the workers is reduced.
Disclosure of Invention
The utility model aims at solving the defects existing in the prior art, and providing a calibration device for an SF6 density relay.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a SF6 density is calibration equipment for relay, includes the outer casing, there is the battery bottom inner wall of outer casing through the screw connection, the bottom inner wall of outer casing is provided with standard detector, and the top outer wall of outer casing opens and to have the display hole, and the side inner wall in display hole is provided with the display, standard detector's pressure release end is connected with the pressure release pipe, and the side outer wall of pressure release pipe is provided with the residual air and detects the chamber, and the top inner wall in residual air detection chamber is provided with pressure sensor, standard detector's the end of giving vent to anger is connected with first air duct, and the one end of first air duct is provided with relay coupling mechanism, standard detector's inlet end is connected with the second air duct, and the one end of second air duct is provided with gas cylinder coupling mechanism, and the.
Furthermore, the lateral outer wall of the pressure release pipe is provided with a pressure release electromagnetic valve, and one end of the pressure release pipe is arranged.
Furthermore, the relay connecting mechanism comprises an air outlet electromagnetic valve arranged on the outer wall of the side surface of the first air duct, and one end of the first air duct is provided with a detection end pipe joint.
Furthermore, relay coupling mechanism is including cup jointing in the four-way pipe joint of first air duct one end, and the output of four-way pipe joint is pegged graft and is had three shunt tubes.
Furthermore, the side outer wall of shunt tubes all is provided with the solenoid valve of giving vent to anger, and the one end of shunt tubes all is connected with the detection end coupling.
Further, gas cylinder coupling mechanism is including pegging graft in the shell of inserting of encloser top outer wall, and the second air duct pegs graft in the bottom outer wall of inserting the shell, the bottom inner wall of inserting the shell is provided with the cover of admitting air, and the side outer wall of admitting air cover pegs graft and has the plug bush, and the top outer wall of plug bush pegs graft and has the intake pipe.
Furthermore, the top of the outer wall of the side face of the plug bush is rotatably connected with a locking sleeve, and the inner wall of the side face of the locking sleeve is connected to the top of the outer wall of the side face of the plug bush through threads.
Furthermore, the top inner wall that the outer casing is located and inserts the shell both sides all is provided with the dog, and the dog is close to one side outer wall of inserting the shell and all has the metal block through spring coupling, and one side outer wall of metal block all is provided with the backing pin.
Furthermore, insert the shell and all be provided with the electromagnetism piece near the side outer wall of dog, and insert the side outer wall of shell and open and have the backing pin hole corresponding with the backing pin, the side outer wall of plug bush is opened and is had the backing pin groove with backing pin looks adaptation.
The utility model has the advantages that:
1. through setting up residual air and detecting chamber and pressure sensor, set up the residual air in the side of pressure release pipe and detect the chamber, set up pressure sensor in the residual air detects the chamber, when disappointing, can detect the gaseous surplus of SF6 in the pipeline through pressure sensor to show through the display, make the staff just extract the intake pipe after the residual air has been discharged, improved the security that the calibration equipment used.
2. Through setting up electromagnetism piece and backing pin, set up the backing pin groove at the cover side of admitting air, when remaining SF6 in the pressure sensor detection pipeline gaseous, the metal block can be adsorbed to the electromagnetism piece, and then the backing pin inserts in the backing pin groove in the time, prevents that the intake pipe from being extracted, prevents then that the staff maloperation, further improvement the security that the calibration equipment used.
3. Through setting up the shunt tubes, pass through a plurality of shunt tubes of four-way union coupling in the one end of first air duct, all can connect the relay in the one end of shunt tubes to through the gaseous outflow of solenoid valve control SF6 of giving vent to anger, then can check up a plurality of relays simultaneously, made things convenient for the operation, improved the efficiency of check-up.
Drawings
Fig. 1 is a schematic structural diagram of a calibration apparatus for an SF6 density relay in embodiment 1;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic view of a housing structure of the calibration apparatus for the SF6 density relay in embodiment 1;
fig. 4 is a schematic structural diagram of the calibration apparatus for the SF6 density relay in embodiment 2.
In the figure: 1-outer housing, 2-first gas guide tube, 3-gas outlet electromagnetic valve, 4-detection end tube joint, 5-display, 6-gas inlet electromagnetic valve, 7-second gas guide tube, 8-pressure sensor, 9-pressure relief tube joint, 10-pressure relief electromagnetic valve, 11-residual gas detection cavity, 12-pressure relief tube, 13-standard detector, 14-storage battery, 15-shunt tube, 16-electromagnetic block, 17-spring, 18-inserting shell, 19-gas inlet sleeve, 20-gas inlet tube, 21-inserting sleeve, 22-locking sleeve, 23-stop block, 24-metal block and 25-stop pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-3, a calibration device for an SF6 density relay comprises an outer casing 1, a storage battery 14 connected with the inner wall of the bottom of the outer casing 1 through screws, a standard detector 13 connected with the inner wall of the bottom of the outer casing 1 through screws, and the outer wall of the top of the outer housing 1 is provided with a display hole, the inner wall of the side surface of the display hole is connected with a display 5 through a screw, the pressure relief end of a standard detector 13 is connected with a pressure relief pipe 12, and the outer wall of the side surface of the pressure relief pipe 12 is provided with a residual air detection cavity 11, the inner wall of the top part of the residual air detection cavity 11 is connected with a pressure sensor 8 through a screw, the air outlet end of the standard detector 13 is connected with a first air duct 2, and one end of the first air duct 2 is provided with a relay connecting mechanism, the air inlet end of the standard detector 13 is connected with a second air duct 7, and one end of the second air duct 7 is provided with a gas cylinder connecting mechanism, and the outer wall of the side surface of the second air duct 7 is provided with an air inlet electromagnetic valve 6.
The utility model discloses in, the side outer wall of pressure release pipe 12 is provided with pressure release solenoid valve 10, and the one end of pressure release pipe 12.
Wherein, relay coupling mechanism is including setting up in the solenoid valve 3 of giving vent to anger of 2 side outer walls of first air duct, and the one end of first air duct 2 is provided with detection end coupling 4.
Wherein, gas cylinder coupling mechanism is including pegging graft in the shell 18 of inserting of 1 top outer wall of housing shell, and second air duct 7 pegs graft in the bottom outer wall of inserting shell 18, and the bottom inner wall welding of inserting shell 18 has air inlet sleeve 19, and air inlet sleeve 19's side outer wall pegs graft and has plug bush 21, and plug bush 21's top outer wall pegs graft and has intake pipe 20.
Wherein, the top of the side outer wall of the plug bush 21 is rotatably connected with a locking sleeve 22, and the side inner wall of the locking sleeve 22 is connected with the top of the side outer wall of the plug shell 18 through threads.
Wherein, the top inner wall that outer housing 1 is located to insert shell 18 both sides has all welded dog 23, and dog 23 is close to one side outer wall of inserting shell 18 and all is connected with metal block 24 through spring 17, and one side outer wall of metal block 24 has all welded the backing pin 25.
The outer wall of the side face of the inserting shell 18 close to the stop block 23 is connected with the electromagnetic block 16 through a screw, the outer wall of the side face of the inserting shell 18 is provided with a stop pin hole corresponding to the stop pin 25, and the outer wall of the side face of the inserting sleeve 21 is provided with a stop pin groove matched with the stop pin 25.
The working principle is as follows: when the gas pressure sensor is used, an SF6 gas cylinder is connected to the other end of the gas inlet pipe 20, a relay to be verified is connected to one end of the detection end pipe joint 4, SF6 gas in the SF6 gas cylinder enters the standard detector 13 through the gas inlet pipe 20 and then enters the relay through the first gas guide pipe 2, the display 5 can display a detection result of the standard detector 13 on the SF6 gas, the relay can be verified by comparing the detection result of the relay, after the verification is finished, the pressure relief electromagnetic valve 10 is opened to discharge the SF6 gas in the pipeline from the pressure relief pipe joint 9, the pressure sensor 8 can detect the pressure of the residual gas in the pipeline and display the pressure through the display 5, and when the pressure sensor 8 detects that the residual SF6 gas exists in the pipeline, the electromagnetic block 16 is in an electrified state, the electromagnetic block 16 adsorbs the metal block 24 at the moment, and then the blocking pin 25 is inserted into the blocking pin groove on the side face of the insertion, and then prevent that the staff from extracting intake pipe 20, after SF6 gas was got rid of in pressure sensor 8 detection pipeline and is accomplished, electromagnetism piece 16 outage, the staff can extract intake pipe 20 this moment.
Example 2:
referring to fig. 4, a calibration equipment for SF6 density relay for convenient a plurality of relays of check-up simultaneously, compared with embodiment 1 and adopted different relay coupling mechanism, relay coupling mechanism is including cup jointing in the four-way pipe joint of 2 one ends of first air duct, and the output that the four-way pipe connects is pegged graft and is had three shunt tubes 15, and the side outer wall of shunt tubes 15 all is provided with air outlet solenoid valve 3, and the one end of shunt tubes 15 all is connected with sense terminal coupling 4.
The working principle is as follows: compared with the embodiment 1, when a plurality of relays are checked, the relays can be connected to different detection end pipe joints 4 simultaneously and respectively, different relays can be checked by controlling the switches of the different air outlet electromagnetic valves 3, and the efficiency of checking the relays is improved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a calibration equipment for SF6 density relay, includes outer housing (1), the bottom inner wall of outer housing (1) has battery (14) through the screw connection, its characterized in that, the bottom inner wall of outer housing (1) is provided with standard detector (13), and the top outer wall of outer housing (1) opens and has the display hole, and the side inner wall in display hole is provided with display (5), the pressure release end of standard detector (13) is connected with pressure release pipe (12), and the side outer wall of pressure release pipe (12) is provided with residual air detection chamber (11), and the top inner wall of residual air detection chamber (11) is provided with pressure sensor (8), the end of giving vent to anger of standard detector (13) is connected with first air duct (2), and the one end of first air duct (2) is provided with relay coupling mechanism, the end of admitting air of standard detector (13) is connected with second air duct (7), and one end of the second air duct (7) is provided with a gas cylinder connecting mechanism, and the outer wall of the side surface of the second air duct (7) is provided with an air inlet electromagnetic valve (6).
2. The calibration device for the SF6 density relay as recited in claim 1, wherein a pressure relief solenoid valve (10) is disposed on an outer side wall of the pressure relief tube (12), and one end of the pressure relief tube (12) is connected to the pressure relief tube.
3. The calibration device for the SF6 density relay as recited in claim 1, wherein the relay connection mechanism comprises an air outlet solenoid valve (3) disposed on the outer wall of the side of the first air duct (2), and a detection end pipe joint (4) is disposed at one end of the first air duct (2).
4. The calibration device for the SF6 density relay as recited in claim 1, wherein the relay connection mechanism comprises a four-way pipe joint sleeved at one end of the first air duct (2), and three shunt pipes (15) are inserted at the output end of the four-way pipe joint.
5. The calibration device for the SF6 density relay as recited in claim 4, wherein the lateral outer walls of the shunt tubes (15) are provided with air outlet solenoid valves (3), and one ends of the shunt tubes (15) are connected with detection end pipe joints (4).
6. The calibration device for the SF6 density relay as recited in claim 1, wherein the gas cylinder connection mechanism comprises an insertion housing (18) inserted in the outer wall of the top of the outer housing (1), the second gas guiding tube (7) is inserted in the outer wall of the bottom of the insertion housing (18), an air inlet sleeve (19) is arranged on the inner wall of the bottom of the insertion housing (18), an insertion sleeve (21) is inserted in the outer wall of the side of the air inlet sleeve (19), and an air inlet tube (20) is inserted in the outer wall of the top of the insertion sleeve (21).
7. The calibration device for the SF6 density relay as recited in claim 6, wherein the top of the outer side wall of the socket (21) is rotatably connected with the locking sleeve (22), and the inner side wall of the locking sleeve (22) is connected with the top of the outer side wall of the socket (18) by screw threads.
8. The calibration device for the SF6 density relay as recited in claim 6, wherein the top inner walls of the outer housing (1) at both sides of the insertion housing (18) are provided with stoppers (23), the outer walls of the stoppers (23) at one side close to the insertion housing (18) are connected with metal blocks (24) through springs (17), and the outer walls of the metal blocks (24) at one side are provided with stop pins (25).
9. The calibration device for the SF6 density relay as recited in claim 8, wherein the electromagnetic blocks (16) are disposed on the outer walls of the sides of the plug housing (18) close to the stoppers (23), the pin holes corresponding to the pins (25) are formed on the outer walls of the sides of the plug housing (18), and the pin grooves corresponding to the pins (25) are formed on the outer walls of the sides of the plug sleeve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920721789.8U CN209992621U (en) | 2019-05-20 | 2019-05-20 | SF6 density is calibration equipment for relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920721789.8U CN209992621U (en) | 2019-05-20 | 2019-05-20 | SF6 density is calibration equipment for relay |
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| Publication Number | Publication Date |
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| CN209992621U true CN209992621U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920721789.8U Active CN209992621U (en) | 2019-05-20 | 2019-05-20 | SF6 density is calibration equipment for relay |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049756A (en) * | 2021-03-30 | 2021-06-29 | 黄沃辉 | Microelectronic gas analysis system and method based on chip and intelligent manufacturing |
| CN114384144A (en) * | 2021-10-25 | 2022-04-22 | 广东电网有限责任公司广州供电局 | Calibration device and method of alarm instrument for detecting sulfur hexafluoride in power distribution room |
-
2019
- 2019-05-20 CN CN201920721789.8U patent/CN209992621U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049756A (en) * | 2021-03-30 | 2021-06-29 | 黄沃辉 | Microelectronic gas analysis system and method based on chip and intelligent manufacturing |
| CN114384144A (en) * | 2021-10-25 | 2022-04-22 | 广东电网有限责任公司广州供电局 | Calibration device and method of alarm instrument for detecting sulfur hexafluoride in power distribution room |
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