CN220016977U - Pipe gallery inflating and deflating device for gas insulated metal closed circuit - Google Patents
Pipe gallery inflating and deflating device for gas insulated metal closed circuit Download PDFInfo
- Publication number
- CN220016977U CN220016977U CN202320475119.9U CN202320475119U CN220016977U CN 220016977 U CN220016977 U CN 220016977U CN 202320475119 U CN202320475119 U CN 202320475119U CN 220016977 U CN220016977 U CN 220016977U
- Authority
- CN
- China
- Prior art keywords
- gil
- pipeline
- air chamber
- air
- inflation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000002184 metal Substances 0.000 title claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 35
- 239000012212 insulator Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/26—Expansion vessels; Locking heads; Auxiliary pipe-lines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/08—Installations of electric cables or lines in or on the ground or water in tunnels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Insulating Materials (AREA)
Abstract
The utility model relates to a pipe gallery air charging and discharging device for a gas-insulated metal closed circuit, which comprises a GIL pipe gallery, a GIL pipeline arranged in the GIL pipe gallery, an air charging and discharging pipeline arranged in parallel with the GIL pipeline, and a ground work station connected with the air charging and discharging pipeline, wherein a plurality of air charging and discharging ports are arranged on the GIL pipeline, and the air charging and discharging pipeline is connected with the air charging and discharging ports through the air charging and discharging device and controls air charging and discharging. When any GIL pipeline in the GIL pipe gallery needs to be inflated and deflated, one end of the inflation and deflation device is flexibly connected with the inflation and deflation port of the corresponding air chamber through a hose, the other end of the inflation and deflation device is connected with the nearby inflation and deflation pipeline, the inflation and deflation pipeline is communicated with the ground workstation through the hose, the inflation and deflation are convenient and flexible, and the gas recovery workload is greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of power transmission lines of power systems, and particularly relates to a pipe gallery inflation and deflation device for a gas-insulated metal closed circuit.
Background
The gas-insulated metal-enclosed transmission line (GIL) can replace the traditional overhead line or power cable due to the characteristics of large transmission capacity, small loss, high safety, environmental friendliness and the like, and can be used for large-capacity and long-distance electric energy transmission.
GIL tubes are typically connected using multiple GIL cells, with GIL lines having lengths in excess of 1kM and with long inter-manhole distances within the GIL lines. In the prior art, the gas recovery mode generally adopts a gas recovery device to pump air to the gas cylinder in the tunnel, and then the gas cylinder is carried to the ground for centralized treatment.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the pipe gallery air charging and discharging device for the gas-insulated metal closed circuit, which is convenient and flexible to charge and discharge and greatly reduces the gas recovery workload.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model provides a pipe rack fills gassing device for gas-insulated metal enclosed circuit, includes the GIL pipe rack, sets up the GIL pipeline in the GIL pipe rack, with the gas filling pipeline of GIL pipeline parallel arrangement, with the ground workstation who fills gassing pipeline connection, be equipped with a plurality of gas filling ports on the GIL pipeline, fill the gassing pipeline and fill the gas filling port and pass through and fill gassing device connection and control and fill gassing.
Preferably, the air charging and discharging pipeline comprises a plurality of horizontal air charging and discharging pipelines corresponding to the GIL pipeline and at least one vertical air charging and discharging pipeline connected with the ground workstation.
Preferably, the horizontal air charging and discharging pipe is connected with the vertical air charging and discharging pipe through a hose, and two adjacent horizontal air charging and discharging pipes are connected through hoses.
Preferably, the GIL pipeline comprises a plurality of GIL units, each GIL unit comprises a GIL air chamber, each GIL air chamber comprises a small air chamber, a middle air chamber and a small air chamber which are sequentially connected, the middle air chamber and the two small air chambers are respectively separated in a sealing mode through a basin-type insulator, and the middle air chamber and the two small air chambers are bridged through a stainless steel pipe with a double-head check valve.
Preferably, the GIL unit comprises a plurality of standard pipe sections which are connected in a penetrating manner, and two adjacent standard pipe sections are connected through a butt flange.
Preferably, the small air chamber comprises half standard pipe sections, the middle air chamber comprises N standard pipe section connection settings, and the GIL unit comprises N+1 standard pipe section connection settings.
Preferably, the length of the standard pipe section is L1, the length of the small air chamber is l2=l1/2, the length of the middle air chamber is l3=n×l1, and the length of the GIL unit is l4= (n+1) ×l1.
Preferably, the GIL cells of two adjacent GIL cells are sealed apart by a basin insulator and bridged by a stainless steel tube with a double-ended check valve.
In summary, the utility model has the advantages that:
when any GIL pipeline in the GIL pipe gallery needs to be inflated and deflated, the nearby inflation and deflation pipeline can be flexibly selected, one end of the inflation and deflation device is connected with the inflation and deflation port on the corresponding GIL pipeline, the other end of the inflation and deflation device is connected with the nearby inflation and deflation pipeline, and the inflation and deflation pipeline is communicated to the ground workstation to directly conduct gas recovery.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic view of the structure and position of the GIL pipe and the horizontal inflation/deflation pipe according to the embodiment of the present utility model;
FIG. 3 is a schematic diagram of a charging/discharging pipeline according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of the structure of the GIL unit in the embodiment of the utility model;
fig. 5 is an enlarged partial schematic view at a in fig. 4.
Reference numerals:
1. a GIL tube; 2. a GIL cell; 21. a small air chamber; 22. a middle air chamber; 23. a standard pipe section; 24. a butt flange; 3. basin-type insulator; 4. stainless steel tube; 5. a gas filling and discharging port; 6. an air charging and discharging device; 7. an inflation and deflation pipeline; 71. a horizontal air charging and discharging pipe; 72. a vertical air charging and discharging pipe; 73. a hose; 8. a ground workstation; 9. GIL tube rack.
Detailed Description
In order to more clearly illustrate the general inventive concept, the present utility model will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the utility model.
Examples
A pipe gallery air charging and discharging device for a gas insulated metal enclosed circuit is shown in fig. 1-5, and comprises a GIL pipe gallery 9, a GIL pipeline 1 arranged in the GIL pipe gallery 9, an air charging and discharging pipeline 7 arranged in parallel with the GIL pipeline 1, and a ground work station 8 connected with the air charging and discharging pipeline 7, wherein a plurality of air charging and discharging ports 5 are arranged on the GIL pipeline 1, and the air charging and discharging pipeline 7 and the air charging and discharging ports 5 are connected through the air charging and discharging device 6 and control air charging and discharging.
The utility model is convenient for maintenance and air inflation and deflation, the air inflation and deflation device 6 is removably arranged at the air inflation and deflation port 5, when any air chamber needs maintenance, one end of the air inflation and deflation device 6 is flexibly connected with the air inflation and deflation port 5 of the corresponding air chamber by the hose 73, the other end of the air inflation and deflation device 6 is connected with the nearby air inflation and deflation pipeline 7, and the air inflation and deflation pipeline 7 is communicated with the ground workstation 8 by the hose 73, so that the operation is more flexible, the air recovery is convenient, and the air recovery workload is greatly reduced.
In order to meet the standardization of the GIL pipeline 1 and facilitate assembly, as shown in fig. 2, the GIL pipeline 1 comprises a plurality of GIL units 2 connected together, and two ends of each GIL unit 2 are respectively provided with an air charging and discharging port 5 with a check valve.
For flexible connection of the inflation and deflation means 6 to meet the inflation and deflation requirements of the different plenums, as in fig. 3, said inflation and deflation line 7 comprises a plurality of horizontal inflation and deflation lines 71 corresponding to the GIL units 2, and at least one vertical inflation and deflation line 72 connected to the ground station 8. Wherein, the horizontal air charging and discharging pipe 71 is connected with the vertical air charging and discharging pipe 72 through a hose 73, and two adjacent horizontal air charging and discharging pipes 71 are connected through a hose 73.
In order to shorten the maintenance time, the structure of the GIL unit 2 is optimally designed, referring to fig. 4 and 5, the GIL unit 2 comprises a GIL air chamber, the GIL air chamber comprises a small air chamber 21, a middle air chamber 22 and a small air chamber 21 which are sequentially connected, the middle air chamber 22 and the two small air chambers 21 are respectively sealed and separated by a basin-type insulator 3, and are bridged by a stainless steel tube 4 with a double-end check valve. The GIL unit 2 includes a plurality of standard tube sections 23 that are connected through, and two adjacent standard tube sections 23 are connected by a butt flange 24. The GIL cells of two adjacent GIL cells 2 are sealed apart by a basin insulator 3 and bridged by a stainless steel tube 4 with a double-ended check valve.
Specifically, the small air chamber 21 includes a half standard pipe section 23, the middle air chamber 22 includes N standard pipe sections 23 connected to each other, and the GIL unit 2 includes n+1 standard pipe sections 23 connected to each other. The length of the standard pipe section 23 is L1, the length of the small air chamber 21 is l2=l1/2, the length of the middle air chamber 22 is l3=n×l1, and the length of the GIL unit 2 is l4= (n+1) ×l1.
Taking a typical 84 meter long GIL unit 2 as an example, the length L1 of the standard tube section 23 is 12 meters, the length l2=6 meters of the small air chamber 21, and the length l3=72 meters of the medium air chamber 22, the 84 meter long GIL unit 2 is divided into a small air chamber 21 with a length of 6 meters, a medium air chamber 22 with a length of 72 meters and a small air chamber 21 with a length of 6 meters in sequence. The GIL cells 2 adjacent to the GIL cells 2 are sealed and separated by a basin insulator 3 to form independent air chambers. In each GIL cell 2, one middle air chamber 22 is sealed from two small air chambers 21 by basin insulators 3, respectively, and also constitute independent air chambers from each other. In each GIL unit 2, a middle air chamber 22 and two small air chambers 21 are respectively bridged by a stainless steel pipe 4, two ends of the stainless steel pipe 4 are respectively provided with a check valve, and the communication of the air chambers in the GIL units 2 can be controlled by controlling the check valves so as to meet the working requirements.
When one of the air chambers needs to be pumped or vacuumized for maintenance, as the structural strength of the basin-type insulators 3 at the two ends of the air chamber is considered, when the semi-pressure reduction measures are taken for the adjacent air chambers at the two sides of the air chamber, compared with the prior art that the pumping and the pressure reduction are needed for three complete GIL units 2, only the pumping and the pressure reduction are needed for one middle air chamber 22 and two small air chambers 21 with small-medium-small or medium-small structures, the total length of the pumping and the pressure reduction are only equal to the length of one complete GIL unit 2, and the maintenance time in a tunnel is greatly shortened.
In addition to the above preferred embodiments, the present utility model has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the utility model, which is defined in the appended claims.
Claims (8)
1. A piping lane fills gassing device for gas-insulated metal-enclosed circuit, its characterized in that: including the GIL piping lane, set up the GIL pipeline in the GIL piping lane, with the charge-air discharge pipeline of GIL pipeline parallel arrangement, with the ground workstation of charge-air discharge pipeline connection, be equipped with a plurality of charge-air discharge ports on the GIL pipeline, charge-air discharge pipeline and charge-air discharge port and charge-air discharge device connection and control charge-air discharge.
2. A piping lane inflating and deflating device for a gas insulated metal enclosed circuit according to claim 1, wherein: the inflation and deflation pipeline comprises a plurality of horizontal inflation and deflation pipes corresponding to the GIL pipeline and at least one vertical inflation and deflation pipe connected with the ground workstation.
3. A piping lane inflating and deflating device for a gas insulated metal enclosed circuit according to claim 2, wherein: the horizontal air charging and discharging pipes are connected with the vertical air charging and discharging pipes through hoses, and two adjacent horizontal air charging and discharging pipes are connected through hoses.
4. A piping lane inflating and deflating device for a gas insulated metal enclosed circuit according to any one of claims 1-3, wherein: the GIL pipeline comprises a plurality of GIL units, each GIL unit comprises a GIL air chamber, each GIL air chamber comprises a small air chamber, a middle air chamber and a small air chamber which are sequentially connected, and the middle air chamber and the two small air chambers are respectively sealed and separated by a basin-type insulator and are bridged by a stainless steel pipe with a double-head check valve.
5. A piping lane inflating and deflating device for a gas insulated metal enclosed circuit according to claim 4, wherein: the GIL unit comprises a plurality of standard pipe sections which are connected in a penetrating way, and two adjacent standard pipe sections are connected through a butt flange.
6. A piping lane inflating and deflating device for a gas insulated metal enclosed circuit according to claim 5, wherein: the small air chamber comprises a half standard pipe section, the middle air chamber comprises N standard pipe sections which are connected, and the GIL unit comprises N+1 standard pipe sections which are connected.
7. A piping lane inflating and deflating device for a gas insulated metal enclosed circuit according to claim 6, wherein: the length of the standard pipe section is L1, the length of the small air chamber is l2=l1/2, the length of the middle air chamber is l3=n×l1, and the length of the GIL unit is l4= (n+1) ×l1.
8. A piping lane inflating and deflating device for a gas insulated metal enclosed circuit according to any one of claims 5 to 7, wherein: the GIL air chambers of two adjacent GIL units are sealed and separated by a basin-type insulator and are bridged by a stainless steel pipe with a double-head check valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211195790.4A CN115681800A (en) | 2022-09-29 | 2022-09-29 | Pipe gallery air charging and discharging device for gas insulated metal closed circuit (GIL) |
| CN2022111957904 | 2022-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220016977U true CN220016977U (en) | 2023-11-14 |
Family
ID=85064552
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211195790.4A Pending CN115681800A (en) | 2022-09-29 | 2022-09-29 | Pipe gallery air charging and discharging device for gas insulated metal closed circuit (GIL) |
| CN202320475119.9U Active CN220016977U (en) | 2022-09-29 | 2023-03-07 | Pipe gallery inflating and deflating device for gas insulated metal closed circuit |
| CN202310237989.7A Pending CN116398807A (en) | 2022-09-29 | 2023-03-07 | Pipe gallery air charging and discharging device for gas insulated metal enclosed line (GIL) |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211195790.4A Pending CN115681800A (en) | 2022-09-29 | 2022-09-29 | Pipe gallery air charging and discharging device for gas insulated metal closed circuit (GIL) |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310237989.7A Pending CN116398807A (en) | 2022-09-29 | 2023-03-07 | Pipe gallery air charging and discharging device for gas insulated metal enclosed line (GIL) |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN115681800A (en) |
-
2022
- 2022-09-29 CN CN202211195790.4A patent/CN115681800A/en active Pending
-
2023
- 2023-03-07 CN CN202320475119.9U patent/CN220016977U/en active Active
- 2023-03-07 CN CN202310237989.7A patent/CN116398807A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN115681800A (en) | 2023-02-03 |
| CN116398807A (en) | 2023-07-07 |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |