CN219976139U - Multi-station rapid inflation and recovery gas circuit structure of GIL/GIS equipment - Google Patents
Multi-station rapid inflation and recovery gas circuit structure of GIL/GIS equipment Download PDFInfo
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- CN219976139U CN219976139U CN202223536249.3U CN202223536249U CN219976139U CN 219976139 U CN219976139 U CN 219976139U CN 202223536249 U CN202223536249 U CN 202223536249U CN 219976139 U CN219976139 U CN 219976139U
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- 238000011084 recovery Methods 0.000 title claims abstract description 43
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 9
- 238000004064 recycling Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 104
- 238000000034 method Methods 0.000 description 8
- 229910018503 SF6 Inorganic materials 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 4
- 238000005273 aeration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The GIL/GIS equipment multi-station rapid inflation and recovery gas circuit structure comprises two sets of parallel control gas circuits with the same structure, wherein input gas sources of the parallel control gas circuits are respectively connected with different types of gas to be inflated, and each set of gas circuit comprises a gas input pipeline, a gas multi-station conveying pipeline, a gas recovery/vacuumizing pipeline and a two-position three-way valve; the air inlet end of the air input pipeline is connected with an air source, the air outlet end of the air input pipeline is connected with a first port of a two-position three-way valve, and a filter, a stop valve, a pressure stabilizing valve and a mass flowmeter are sequentially arranged on the air input pipeline; the gas multi-station conveying pipeline comprises a main conveying pipeline and a plurality of inflatable branch pipes extending to each station, the air inlet end of the main conveying pipeline is connected with the public port of the two-position three-way valve, the air outlet end of the main conveying pipeline is connected with the plurality of inflatable branch pipes, and the main conveying pipeline is provided with a digital display pressure gauge; the gas recovery pipeline/vacuumizing pipeline is connected with a second port of the two-position three-way valve. The utility model realizes the inflation and recovery of the insulating gas of the GIL/GIS equipment on the multi-station, and the inflation recovery process does not need to manually replace interfaces and pipelines.
Description
Technical Field
The utility model belongs to the field of production of insulating gas electrical equipment, and relates to a multi-station rapid inflation and recovery device of GIL/GIS equipment.
Background
The GIL/GIS production enterprises need to fill SF into equipment in the process of assembling the GIL/GIS 6 Gas or SF 6 /N 2 After the test of the mixed gas is completed, the internal insulating gas needs to be quickly recovered. At present, in the process of inflation and recovery, technicians perform inflation operation on GIL/GIS equipment at each station through a plurality of SF 6 Gas or SF 6 /N 2 The mixed gas fresh gas (gas bottle) is realized, single-point operation is implemented, the filling is carried out at present, the filling and recycling process is carried out by manually staring at eyes, and the interfaces and the pipelines are manually replaced, so that the efficiency is very low. SF is completed by utilizing the constructed centralized gas station 6 Gas, SF 6 /N 2 The preparation of the mixed gas is a technical development trend in the process of conveying the mixed gas to a workshop requiring gas through a pipe network and completing the rapid inflation and recovery of GIL/GIS equipment on multiple stations.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides a multi-station rapid inflation and recovery gas circuit structure of GIL/GIS equipment.
In order to solve the technical problems, the utility model adopts the following technical scheme that the multi-station rapid inflation and recovery gas circuit structure of GIL/GIS equipment comprises two sets of parallel control gas circuits with the same structure, input gas sources of the two sets of parallel control gas circuits are respectively connected with different types of insulating gases to be inflated, and each set of control gas circuit has the same structure and comprises a gas input pipeline, a gas multi-station conveying pipeline, a gas recovery/vacuumizing pipeline and two three-way valves;
the air inlet end of the air input pipeline is connected with an air source, the air outlet end of the air input pipeline is connected with a first port of a two-position three-way valve, and the air input pipeline is sequentially provided with a filter, a stop valve, a pressure stabilizing valve and a mass flowmeter;
the gas multi-station conveying pipeline comprises a main conveying pipeline and a plurality of inflation branch pipes extending to each station, wherein the air inlet end of the main conveying pipeline is connected with a public port of a two-position three-way valve, the air outlet end of the main conveying pipeline is connected with a plurality of inflation branch pipes extending to each station, the main conveying pipeline is provided with a digital display pressure gauge, the air outlet end of each inflation branch pipe is provided with an inflation port, and each inflation branch pipe is provided with a switch electromagnetic valve;
one end of the gas recovery pipeline/vacuumizing pipeline is a recovery port/vacuumizing port, and the other end of the gas recovery pipeline/vacuumizing pipeline is connected with a second port of the two-position three-way valve.
The digital display pressure gauge adopts a high-precision digital display pressure gauge.
The working mode of the two-position three-way valve is that the common end is communicated with the inside of the first port, or the common end is communicated with the second port, namely, the gas input pipeline is communicated with the gas multi-station conveying pipeline, or the gas multi-station conveying pipeline is communicated with the gas recovery pipeline/vacuumizing pipeline, and the inflating, recovering and vacuumizing processes are respectively executed.
During the assembly of GIL/GIS, SF needs to be filled and recovered in the equipment 6 Gas or SF 6 /N 2 The mixed gas, namely GIL/GIS to be inflated/recovered gas, is two, so that one set of gas paths is used for SF in two sets of parallel control gas paths 6 Gas charging and recovery, another set for SF 6 /N 2 Aeration and recovery of mixed gases to avoid different gasesThe cross interference of a set of control gas paths is applied; therefore, the input air sources of the two sets of parallel control air paths are respectively connected with SF 6 Gas or SF 6 /N 2 The mixed gas is SF as one set of input gas source 6 When in gas, the other set of input gas source is SF 6 /N 2 And (3) mixing the gases.
SF 6 The air source is SF transported to the workshop by the air station 6 Interface, SF 6 /N 2 The air source is SF transported to the workshop by the air station 6 /N 2 And a gas mixing interface.
The gas multi-station conveying pipeline can be conveyed to the relevant position of the assembly workshop through the conveying main pipeline, and then conveyed to each station through the plurality of inflating branch pipes, and the inflating branch pipes and the stations are in corresponding relation, so that the inflating port of each inflating branch pipe is connected with the inflating port of the GIL/GIS equipment on the corresponding station, and the gas can be inflated. And similarly, the recovery of the gas in the GIL/GIS equipment on the corresponding station is completed. The gas recovery pipeline and the vacuumizing pipeline are shared in a time sharing way.
In the inflation operation, the digital display pressure gauge can measure the expected rated pressure/target pressure, and when the expected rated pressure/target pressure arrives, the corresponding inflation valve is disconnected. The automatic monitoring of the control valves such as solenoid valves, pressure stabilizing valves and data of various parameters such as mass flow meters and pressure meters by various automatic means such as PLC/configuration is also a common technical means for the person skilled in the art, and will not be described herein.
The utility model realizes the rapid inflation and recovery of the insulating gas in the GIL/GIS equipment on the multi-station, automatically closes the inflation valve when the inflation reaches the rated pressure/target pressure, does not need to manually replace an interface and a pipeline in the inflation and recovery process, and can simultaneously implement multi-station operation.
Drawings
Fig. 1 is a schematic diagram of the air circuit control of the present utility model.
Detailed Description
As shown in FIG. 1, the GIL/GIS equipment multi-station rapid inflation and recovery gas circuit structure comprises two sets of parallel control gas circuits with the same structure, input gas sources of the two sets of parallel control gas circuits are respectively connected with different types of insulating gases to be inflated, and each set of control gas circuit structure is the same and comprises a gas input pipeline 1, a gas multi-station conveying pipeline, a gas recovery/vacuumizing pipeline 4 and two-position three-way valves;
the air inlet end of the air input pipeline 1 is connected with an air source, the air outlet end of the air input pipeline 1 is connected with a first port A of a two-position three-way valve V1, and a filter 5, a stop valve VT1, a pressure stabilizing valve T1 and a mass flowmeter are sequentially arranged on the air input pipeline;
the gas multi-station conveying pipeline comprises a conveying main pipeline 2 and a plurality of inflation branch pipes 3 extending to each station, wherein the air inlet end of the conveying main pipeline 2 is connected with a public port com of a two-position three-way valve V1, the air outlet end of the conveying main pipeline 2 is connected with a plurality of inflation branch pipes 3 extending to each station, a digital display pressure gauge 6 is arranged on the conveying main pipeline 2, the air outlet end of each inflation branch pipe 3 is provided with an inflation port, and each inflation branch pipe 3 is provided with a switch electromagnetic valve;
one end of the gas recovery pipeline/vacuumizing pipeline 4 is a recovery port/vacuumizing port, and the other end of the gas recovery pipeline/vacuumizing pipeline is connected with a second port B of the two-position three-way valve V1.
The digital display pressure gauge 6 adopts a high-precision digital display pressure gauge.
The working mode of the two-position three-way valve is that the common end com is communicated with the inside of the first port A, or the common end com is communicated with the second port B, namely, the gas input pipeline is communicated with the gas multi-station conveying pipeline, or the gas multi-station conveying pipeline is communicated with the gas recovery pipeline/vacuumizing pipeline, and the inflating, recovering and vacuumizing processes are respectively executed.
In the embodiment of FIG. 1, the equipment is charged and SF is recovered during the assembly of GIL/GIS 6 Gas or SF 6 /N 2 The mixed gas, namely GIL/GIS to be inflated/recovered gas, is two, so that one set of gas paths is used for SF in two sets of parallel control gas paths 6 Gas charging and recovery, another set for SF 6 /N 2 The mixed gas is inflated and recycled, so that cross interference of different gases by using a set of control gas paths is avoided; therefore, the input air sources of the two sets of parallel control air paths are respectively connected with SF 6 Gas or SF 6 /N 2 The mixed gas is input into a set of gas sourcesSF 6 When in gas, the other set of input gas source is SF 6 /N 2 And (3) mixing the gases.
SF 6 se:Sub>A gas input pipeline for inputting se:Sub>A gas source is sequentially provided with se:Sub>A first filter, se:Sub>A stop valve VT1, se:Sub>A pressure stabilizing valve T1 and se:Sub>A mass flowmeter MFC-A and SF 6 /N 2 The gas input pipeline of the gas source input is sequentially provided with a second filter, a stop valve VT2, a pressure stabilizing valve T2 and a mass flowmeter MFC-B. SF (sulfur hexafluoride) 6 The air source is SF transported to the workshop by the air station 6 Interface, SF 6 /N 2 The air source is SF transported to the workshop by the air station 6 /N 2 A gas mixing interface;
the gas multi-station conveying pipeline can be conveyed to the relevant position of the assembly workshop through the conveying main pipeline 2, and then conveyed to each station through the plurality of inflating branch pipes 3, and the inflating branch pipes 3 and the stations are in corresponding relation, so that the inflating port of each inflating branch pipe 3 is connected with the inflating port of the GIL/GIS equipment on the corresponding station, and the gas can be inflated. And similarly, the recovery of the gas in the GIL/GIS equipment on the corresponding station is completed. The gas recovery pipeline and the vacuumizing pipeline are shared in a time sharing way.
The overall workflow is as follows, (hereinafter SF 6 Aeration or recovery is described as an example, SF 6 /N 2 Inflation or recovery is the same as the management
1. Vacuum was applied to GIL/GIS. The inflation ports of the inflation branch pipes 3 are connected with the inflation ports of the GIL/GIS equipment on the corresponding stations, the vacuumizing device is connected with the recovery port/vacuumizing port, the GIL/GIS equipment is vacuumized firstly, and the two-position three-way valve V1 rotates to a common port com and second port B conduction mode. And opening electromagnetic valves V10 (V11/V12) on the inflating branch pipes 3 correspondingly connected with the GIL/GIS equipment, closing the external vacuum pump after vacuumizing is qualified, closing the electromagnetic valves V10 (V11/V12) on the inflating branch pipes 3, and regulating the two-position three-way valve V1 to a public end com and first port A conduction mode.
2. Inflation (gas filling) procedure. Opening se:Sub>A pipeline valve V10 (V11/V12) on the inflating branch pipe 3 correspondingly connected with the GIL/GIS equipment, and calculating the filled SF by the mass flowmeter MFC-A 6 The quality of the gas and the pressure stabilizing valve VT1 can ensure the filling into the GIL/GISSF of (2) 6 The gas pressure does not exceed the pressure regulated by the pressure regulating valve (the regulating valve can regulate SF filled in GIL/GIS) 6 Gas pressure), after the pressure reaches the target pressure or the set value, the valve of the corresponding channel is automatically closed and the inflation weight is displayed. And an automatic control mode such as PLC (programmable logic controller) is adopted for configuration control, and the corresponding channel can also display the completion of inflation after the inflation is completed, and the sound and light display is performed. In the inflation operation, the digital display pressure gauge 6 can measure the expected rated pressure/target pressure, and when the expected rated pressure/target pressure arrives, the corresponding inflation valve V10 (V11/V12) is disconnected.
3. And (5) recovering a gas flow. The recovery device is connected with the recovery port through a pipeline, the two-position three-way valve V1 rotates to a public end com and the second port B in a conduction mode, a valve V10 (V11/V12) on a pipeline corresponding to GIL/GIS equipment to be recovered is opened, gas in the GIL/GIS is recovered to an external container through a gas recovery pipeline, and when the pressure of the recovered gas is lower than 2kPa, the gas recovery work is completed.
SF6/N 2 The charging (filling) and recycling processes of the mixed gas are the same as those of SF6 gas. The whole inflation station can simultaneously meet simultaneous filling of 6 GIL/GIS (three SF6 air chambers, SF 6/N) 2 Three gas-mixed chambers).
Of course, the automatic monitoring of the control valves, such as solenoid valves, pressure stabilizing valves, and data of various parameters, such as mass flow meters and pressure gauges, by various automatic means, such as PLC/configuration, is a common technical means for those skilled in the art, and is not described herein, and all the various deformation applications made according to the basic control principles of the present utility model are also the protection scope of the present patent.
The utility model is also suitable for the rapid inflation and recovery of multi-station GIL/GIS equipment of different insulating gases in electrical equipment, and only the corresponding gas needs to be replaced by a gas source.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present utility model, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model are all included in the scope of protection of the technical solution of the present utility model.
Claims (2)
- Gas circuit structure is inflated and retrieved fast to GIL/GIS equipment multistation, its characterized in that: the device comprises two sets of parallel control gas paths with the same structure, wherein input gas sources of the two sets of parallel control gas paths are respectively connected with different types of insulating gas to be filled, and each set of control gas paths has the same structure and comprises a gas input pipeline, a gas multi-station conveying pipeline, a gas recycling/vacuumizing pipeline and a two-position three-way valve;the air inlet end of the air input pipeline is connected with an air source, the air outlet end of the air input pipeline is connected with a first port of a two-position three-way valve, and the air input pipeline is sequentially provided with a filter, a stop valve, a pressure stabilizing valve and a mass flowmeter;the gas multi-station conveying pipeline comprises a main conveying pipeline and a plurality of inflation branch pipes extending to each station, wherein the air inlet end of the main conveying pipeline is connected with a public port of a two-position three-way valve, the air outlet end of the main conveying pipeline is connected with a plurality of inflation branch pipes extending to each station, the main conveying pipeline is provided with a digital display pressure gauge, the air outlet end of each inflation branch pipe is provided with an inflation port, and each inflation branch pipe is provided with a switch electromagnetic valve;one end of the gas recovery pipeline/vacuumizing pipeline is a recovery port/vacuumizing port, and the other end of the gas recovery pipeline/vacuumizing pipeline is connected with a second port of the two-position three-way valve.
- 2. The gas circuit structure is inflated and recovered fast in the multiple stations of GIL/GIS equipment of claim 1, wherein the digital display pressure gauge is a high-precision digital display pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223536249.3U CN219976139U (en) | 2022-12-29 | 2022-12-29 | Multi-station rapid inflation and recovery gas circuit structure of GIL/GIS equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223536249.3U CN219976139U (en) | 2022-12-29 | 2022-12-29 | Multi-station rapid inflation and recovery gas circuit structure of GIL/GIS equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219976139U true CN219976139U (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223536249.3U Active CN219976139U (en) | 2022-12-29 | 2022-12-29 | Multi-station rapid inflation and recovery gas circuit structure of GIL/GIS equipment |
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| Country | Link |
|---|---|
| CN (1) | CN219976139U (en) |
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2022
- 2022-12-29 CN CN202223536249.3U patent/CN219976139U/en active Active
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