CN214844614U - Inflatable dismounting-free verification sulfur hexafluoride density relay - Google Patents
Inflatable dismounting-free verification sulfur hexafluoride density relay Download PDFInfo
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- CN214844614U CN214844614U CN202121510253.5U CN202121510253U CN214844614U CN 214844614 U CN214844614 U CN 214844614U CN 202121510253 U CN202121510253 U CN 202121510253U CN 214844614 U CN214844614 U CN 214844614U
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- way valve
- density relay
- connecting pipeline
- sulfur hexafluoride
- inflatable
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Abstract
The utility model discloses a sulfur hexafluoride density relay of inflatable non-disassembly check belongs to power equipment technical field, including SF6 density relay, the bottom of SF6 density relay sets up the detection interface, SF6 density relay is connected with the first output of three-way valve through first connecting line, the first input of three-way valve is connected with the equipment to be measured through the second connecting line, the second input of three-way valve is connected with the interface of aerifing through the third connecting line; the three-way valve is provided with a switching knob for switching the first output end and the second input end; the first connecting pipeline is connected with the output end of the three-way valve through threads, and the third connecting pipeline is integrally connected with the second input end of the three-way valve; and a signal transmission interface is arranged on the SF6 density relay. The utility model discloses a set up the three-way valve and realize detecting and aerifing the switching of two kinds of functions, easy to assemble dismantles.
Description
Technical Field
The utility model relates to a power equipment technical field specifically is used for the sulfur hexafluoride density relay of the inflatable dismantlement-free check-up of transformer substations such as looped netowrk cabinet, circuit breaker.
Background
The sulfur hexafluoride density relay is an instrument for monitoring the density of the sulfur hexafluoride in low-pressure equipment such as a switch cabinet, a ring main unit and the like, the sulfur hexafluoride density relay is very large in usage amount in a transformer substation, and particularly, a great number of small sulfur hexafluoride density relays are arranged on a distribution cabinet of the transformer substation.
The accuracy requirement of sulfur hexafluoride density indication is very high, and very large accidents can be caused once the relay makes mistakes; therefore, the sulfur hexafluoride density relay needs to be checked regularly, the traditional checking process comprises factory return checking and field checking, a newly replaced relay needs to be installed during factory return checking, and the sulfur hexafluoride density relay needs to be disassembled on the field during field checking, so that the sulfur hexafluoride density relay is connected with a gas circuit of the checking equipment independently; this disassembly process is very cumbersome and, in addition, the large number of sulfur hexafluoride density relays results in a very large amount of work.
The existing improvement mainly relates to a quick disassembly structure, for example, a connector at the tail end of a relay air inlet pipe of a sulfur hexafluoride density relay is designed to be a one-way valve connector, the one-way valve connector is generally a male valve connector or a female valve connector, an air path is conducted after splicing and assembling, and air leakage does not occur after disassembly, so that the disassembly and assembly are quick, and excessive air leakage can be avoided; but still requires a very specialized and complicated disassembly and assembly process of the equipment air pipe and the relay air inlet pipe on site.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough among the above-mentioned prior art, a inflatable dismantlement-free check sulfur hexafluoride density relay is disclosed.
The utility model provides a technical scheme that its technical problem adopted is: inflatable dismantlement check-free sulfur hexafluoride density relay includes:
the device comprises an SF6 density relay, a detection interface is arranged at the bottom of the SF6 density relay, the SF6 density relay is connected with a first output end of a three-way valve through a first connecting pipeline, a first input end of the three-way valve is connected with a device to be detected through a second connecting pipeline, and a second input end of the three-way valve is connected with an inflation interface through a third connecting pipeline;
the three-way valve is provided with a switching knob for switching the first output end and the second input end;
the first connecting pipeline is connected with the output end of the three-way valve through threads, and the third connecting pipeline is integrally connected with the second input end of the three-way valve; a signal transmission interface is arranged on the SF6 density relay;
a first sealing fastener is arranged at the connecting end of the first connecting pipeline and the SF6 density relay;
a second sealing fastener is arranged at the joint of the first connecting pipeline and the three-way valve, and a third sealing fastener is arranged at the joint of the second connecting pipeline and the equipment to be tested;
and a fourth sealing fastener is arranged at the joint of the third connecting pipeline and the three-way valve, and a fifth sealing fastener is arranged at the joint of the third connecting pipeline and the inflation connector.
As a further technical scheme of the utility model does, first sealing fastener includes installed part and fastening nut, the installed part is connected with SF6 density relay's detection interface, fastening nut suit is on the installed part, fixes the installed part through rotatory fastening nut.
As a further technical scheme of the utility model do, the tip outside of first connecting tube way sets up sealed recess, the inside sealing washer that sets up of sealed recess.
As a further technical scheme of the utility model does, set up first check valve on the first connecting line, first check valve is for following the three-way valve to SF6 density relay flow direction for switching on the direction, and SF6 density relay is the contrary direction of ending to the three-way valve flow direction.
As a further technical scheme of the utility model do, set up the second check valve on the third connecting pipeline, the second check valve is for the flow direction from aerifing the interface to the three-way valve for switching on the direction, and the three-way valve is the contrary direction to the flow direction of aerifing the interface.
As a further technical scheme of the utility model do, the third connecting line is welded connection with the three-way valve, first connecting line is threaded connection with the first output of three-way valve.
Further, the second connecting pipeline is connected with a second input end of the three-way valve in a welding mode.
Further, the sealing ring is a rubber gasket.
Compared with the prior art, the utility model has the following advantage:
the utility model discloses a sulfur hexafluoride density relay of inflatable exempts from to dismantle check-up, SF6 density relay is used for treating the SF6 gas density of equipment for examining and detects, SF6 density relay is connected for dismantling with the three-way valve, easy to assemble changes the maintenance, realize detecting and aerifing the switching of two kinds of functions through setting up the three-way valve, convenient operation, at first connecting tube, the second connecting tube, set up first sealing fastener on the third connecting tube, second sealing fastener, third sealing fastener, fourth sealing fastener, fifth sealing fastener realizes the fastening and the sealing of connecting, easy to assemble dismantles.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a view showing the structure of the first sealing joint.
Description of reference numerals:
the device comprises a 10-SF6 density relay, a 20-first connecting pipeline, a 30-three-way valve, a 40-second connecting pipeline, a 50-third connecting pipeline, a 60-inflation interface, a 70-first check valve and a 80-second check valve;
101-detection interface, 102-signal transmission interface;
301-a first input, 302-a first output, 303-a second input, 304-a switching knob;
201-a first sealing fastener, 202-a second sealing fastener;
211-mounting piece, 212-fastening nut, 213-sealing groove, 214-sealing ring;
401-a third sealing fastener;
501-fourth sealing fastener, 502-fifth sealing fastener.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
As shown in fig. 1-2, which illustrate a specific embodiment of the present invention;
as shown in the figure, the inflatable disassembly-free verified sulfur hexafluoride density relay comprises:
the SF6 density relay 10 is characterized in that a detection interface 101 is arranged at the bottom of the SF6 density relay 10, a detection interface 11 is used for being connected with equipment to be tested, switching between detection and inflation is realized by arranging a three-way valve 30, when the air pressure and the density in the equipment to be tested are insufficient, the equipment to be tested can be inflated by connecting an inflation device, the operation is convenient, and the inflation can be completed without disassembly, specifically, the SF6 density relay 10 is connected with a first output end 302 of the three-way valve 30 through a first connecting pipeline 20, a first input end 31 of the three-way valve 30 is connected with the equipment to be tested through a second connecting pipeline 40, and a second input end 303 of the three-way valve 30 is connected with an inflation interface 60 through a third connecting pipeline 50;
a switching knob is arranged on the three-way valve, so that a detection channel and an inflation channel can be selected, and different modes can be switched according to requirements, and specifically, a switching knob 304 for switching a first output end 302 and a second input end 303 is arranged on the three-way valve 30;
the three-way valve and the first connecting pipeline, the second connecting pipeline and the third connecting pipeline can be provided with connecting modes as required, under the condition that the length or the bending degree of the connecting pipelines does not need to be changed, the integrated connecting mode of welding the first connecting pipeline, the second connecting pipeline and the third connecting pipeline with the three-way valve can be selected, the sealing effect is good, the first connecting pipeline, the second connecting pipeline and the third connecting pipeline can be detachably connected with the three-way valve and can be connected by adopting threads or buckles, specifically, the first connecting pipeline 20 is connected with the first output end of the three-way valve 30 by threads, and the third connecting pipeline 50 is integrally connected with the second input end 33 of the three-way valve 30; the SF6 density relay 10 is provided with a signal transmission interface 102; wired and wireless data transmission can be realized through the signal transmission interface, the transmission of monitoring data is convenient, and the management and control are carried out on a background conveniently.
The first connecting pipeline 20 is connected with the SF6 density relay 10 end through a first sealing fastener 201; a first sealing fastener is arranged on the first connecting pipeline, the SF6 density relay is fixedly connected with the first connecting pipeline through the first sealing fastener, and the first sealing fastener realizes the fastening and sealing functions;
when the first connecting pipeline is detachably connected with the three-way valve, a second sealing fastener 202 is arranged at the joint of the first connecting pipeline 20 and the three-way valve 30, and a third sealing fastener 401 is arranged at the joint of the second connecting pipeline 40 and the equipment to be tested;
when the third connecting pipeline and the three-way valve are detachably connected, a fourth sealing fastener 501 is arranged at the joint of the third connecting pipeline 50 and the three-way valve 30, and a fifth sealing fastener 502 is arranged at the joint of the third connecting pipeline 50 and the inflation connector 60.
The embodiment of the utility model provides an in, SF6 density relay is used for treating the gaseous density of SF6 of equipment for examining and detects, SF6 density relay is connected for dismantling with the three-way valve, easy to assemble changes the maintenance, realize detecting and aerifing the switching of two kinds of functions through setting up the three-way valve, convenient operation, at first connecting tube, the second connecting tube, set up first sealing fastener on the third connecting tube, second sealing fastener, third sealing fastener, fourth sealing fastener, the fastening and the sealing of connection are realized to fifth sealing fastener, easy to assemble dismantles.
The embodiment of the utility model provides an in, first sealing fastener, second sealing fastener, third sealing fastener, fourth sealing fastener, fifth sealing fastener structure are the same, and first sealing fastener 201 includes installed part 211 and fastening nut 212, installed part 211 is connected with SF6 density relay 10's detection interface 101, and fastening nut 212 suit is on installed part 211, fixes installed part 211 through rotatory fastening nut 212.
In the embodiment of the present invention, the end portion outside of the first connecting pipeline 201 is provided with a sealing groove 213, and the sealing ring 214 is arranged inside the sealing groove 213.
The embodiment of the utility model provides an in, because SF6 density relay is arranged in detecting the gas density in the equipment to be tested, consequently its gaseous flow direction that switches on is from the three-way valve to SF6 density relay, consequently sets up first check valve 70 on first connecting line 201, and first check valve 70 flows to for the direction of switching on from three-way valve 30 to SF6 density relay 10, and SF6 density relay 30 flows to for contrary direction of ending to three-way valve 30.
The inflation interface is used for inflating the device to be tested, so the conduction direction of the third connecting pipeline is the direction from the inflation interface to the device to be tested, the second check valve 80 is arranged on the third connecting pipeline 50, the flow direction from the inflation interface 60 to the three-way valve 30 of the second check valve 80 is the conduction direction, and the flow direction from the three-way valve 30 to the inflation interface 60 is the check direction.
The embodiment of the utility model provides an in, according to design and on-the-spot installation condition, can select different connected mode, third connecting line 50 is welded connection with three-way valve 30, first connecting line 20 is threaded connection with three-way valve 30's first output. The second connecting line 40 is welded to the second input 301 of the three-way valve 30. Wherein, the seal ring 201 is a rubber gasket.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. Inflatable dismantlement check-free sulfur hexafluoride density relay, its characterized in that includes:
the device comprises an SF6 density relay, a detection interface is arranged at the bottom of the SF6 density relay, the SF6 density relay is connected with a first output end of a three-way valve through a first connecting pipeline, a first input end of the three-way valve is connected with a device to be detected through a second connecting pipeline, and a second input end of the three-way valve is connected with an inflation interface through a third connecting pipeline;
the three-way valve is provided with a switching knob for switching the first output end and the second input end;
the first connecting pipeline is connected with the output end of the three-way valve through threads, and the third connecting pipeline is integrally connected with the second input end of the three-way valve; a signal transmission interface is arranged on the SF6 density relay;
a first sealing fastener is arranged at the connecting end of the first connecting pipeline and the SF6 density relay;
a second sealing fastener is arranged at the joint of the first connecting pipeline and the three-way valve, and a third sealing fastener is arranged at the joint of the second connecting pipeline and the equipment to be tested;
and a fourth sealing fastener is arranged at the joint of the third connecting pipeline and the three-way valve, and a fifth sealing fastener is arranged at the joint of the third connecting pipeline and the inflation connector.
2. The inflatable disassembly-free verified sulfur hexafluoride density relay as recited in claim 1, wherein the first sealing fastener comprises a mounting piece and a fastening nut, the mounting piece is connected with the detection interface of the SF6 density relay, the fastening nut is sleeved on the mounting piece, and the mounting piece is fixed through rotating the fastening nut.
3. The inflatable disassembly-free verified sulfur hexafluoride density relay as recited in claim 1, wherein a sealing groove is formed on an outer side of an end portion of the first connecting pipeline, and a sealing ring is arranged in the sealing groove.
4. The inflatable non-removable sulfur hexafluoride density relay according to claim 1, wherein a first check valve is arranged on the first connection line, the first check valve is in a conducting direction from a three-way valve to the SF6 density relay, and the SF6 density relay is in a non-return direction to the three-way valve.
5. The inflatable disassembly-free verified sulfur hexafluoride density relay as claimed in claim 1, wherein a second check valve is arranged on the third connecting pipeline, the second check valve is in a conducting direction from the inflation port to the three-way valve, and the flow direction from the three-way valve to the inflation port is in a non-conducting direction.
6. The inflatable disassembly-free calibrated sulfur hexafluoride density relay as claimed in claim 1, wherein said third connecting line is welded to a three-way valve, and said first connecting line is threaded to a first output of the three-way valve.
7. The inflatable disassembly-free calibrated sulfur hexafluoride density relay of claim 1 wherein said second connecting line is welded to the second input of the three-way valve.
8. The inflatable disassembly-free verified sulfur hexafluoride density relay of claim 3 wherein said seal ring is a rubber gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121510253.5U CN214844614U (en) | 2021-07-05 | 2021-07-05 | Inflatable dismounting-free verification sulfur hexafluoride density relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121510253.5U CN214844614U (en) | 2021-07-05 | 2021-07-05 | Inflatable dismounting-free verification sulfur hexafluoride density relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214844614U true CN214844614U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121510253.5U Expired - Fee Related CN214844614U (en) | 2021-07-05 | 2021-07-05 | Inflatable dismounting-free verification sulfur hexafluoride density relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214844614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878741A (en) * | 2023-09-06 | 2023-10-13 | 江苏炎启自动化有限公司 | Detection device for GIS indoor gas leakage and application method thereof |
-
2021
- 2021-07-05 CN CN202121510253.5U patent/CN214844614U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878741A (en) * | 2023-09-06 | 2023-10-13 | 江苏炎启自动化有限公司 | Detection device for GIS indoor gas leakage and application method thereof |
| CN116878741B (en) * | 2023-09-06 | 2023-12-01 | 江苏炎启自动化有限公司 | Detection device for GIS indoor gas leakage and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20211123 |