CN220066635U - Main transformer internal inspection operation multi-point ventilation device - Google Patents
Main transformer internal inspection operation multi-point ventilation device Download PDFInfo
- Publication number
- CN220066635U CN220066635U CN202321015904.2U CN202321015904U CN220066635U CN 220066635 U CN220066635 U CN 220066635U CN 202321015904 U CN202321015904 U CN 202321015904U CN 220066635 U CN220066635 U CN 220066635U
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- China
- Prior art keywords
- main transformer
- inspection operation
- internal inspection
- hose
- ventilation device
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Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 25
- 238000007689 inspection Methods 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model provides a main transformer internal inspection operation multi-point ventilation unit, includes the gas collecting bag, and the intake pipe and the dry air generating device of gas collecting bag are connected, are equipped with a plurality of blast pipes on the gas collecting bag, and the blast pipe is connected with the one end of hose, and the other end of hose is equipped with the flange that is used for being connected with the transformer box. The utility model provides a multipoint ventilation device for main transformer internal inspection operation, which is additionally provided with a gas distribution bag, wherein one point is ventilated to be changed into multipoint ventilation, a hose is used for connecting a gas outlet on the gas distribution bag with a main transformer body, and dry air is supplied to the inside of the main transformer body through an external flange of the main transformer, so that multipoint ventilation is realized, and the circulation efficiency of the dry air is improved.
Description
Technical Field
The utility model relates to the technical field of transformer overhaul, in particular to a multi-point ventilation device for main transformer internal inspection operation.
Background
The main transformer internal inspection belongs to limited space operation. For the maintenance operation in the main transformer, the air quality of operators is ensured, and meanwhile, the possibility of wetting of equipment in the main transformer is reduced. Therefore, it is necessary to continuously supply dry air into the main transformer. According to the main transformer limited space operation rule: it is necessary to continuously introduce dry air having a dew point of not less than 40 c into the main transformer and monitor the oxygen content every half an hour, the oxygen content concentration being not less than 19.5%.
The prior art comprises the following steps: the main transformer internal overhaul ventilation mode is that dry air is continuously introduced into the main body from a manhole or dry air is introduced from a main transformer top discharge oil injection valve. The ventilation mode is a point ventilation mode, the dry air cannot be completely distributed in the whole transformer room, the circulation efficiency is low, and maintenance staff can work for a long time only with difficulty.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a multi-point ventilation device for main transformer internal inspection operation, which is used for supplying dry air to the inside of a body through a main transformer external flange, realizing multi-point ventilation and improving the circulation efficiency of the dry air.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a main transformer internal inspection operation multi-point ventilation unit, includes the gas collecting bag, and the intake pipe and the dry air generating device of gas collecting bag are connected, are equipped with a plurality of blast pipes on the gas collecting bag, and the blast pipe is connected with the one end of hose, and the other end of hose is equipped with the flange that is used for being connected with the transformer box.
Preferably, the hose is connected with the exhaust pipe through a quick connector, and the end part of the exhaust pipe is matched with the quick connector.
Preferably, the air outlet end of the dry air generating device is connected with a hose, the end part of the hose is connected with an air inlet pipe through a quick connector, and the end part of the air inlet pipe is matched with the quick connector.
Preferably, valves are arranged on the air inlet pipe and the air outlet pipe.
Preferably, the gas collecting bag is arranged on the support, and the lower end of the support is provided with a universal wheel with a locking function.
Preferably, the gas collecting bag is provided with a pressure gauge and a safety valve.
Preferably, the connecting flange is a flange for connecting with a phi 80 butterfly valve or a DN25 ball valve.
Preferably, at least 4 exhaust pipes are provided.
The utility model provides a multipoint ventilation device for main transformer internal inspection operation, which is additionally provided with a gas distribution bag, wherein one point is ventilated to be changed into multipoint ventilation, a hose is used for connecting a gas outlet on the gas distribution bag with a main transformer body, and dry air is supplied to the inside of the main transformer body through an external flange of the main transformer, so that multipoint ventilation is realized, and the circulation efficiency of the dry air is improved.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic structural view of the present utility model.
Detailed Description
As shown in fig. 1, the multi-point ventilation device for the main transformer internal inspection operation comprises a gas collecting bag 1, wherein an air inlet pipe 2 of the gas collecting bag 1 is connected with a dry air generating device 3, a plurality of air outlet pipes 4 are arranged on the gas collecting bag 1, the air outlet pipes 4 are connected with one end of a hose 5, and a connecting flange 12 used for being connected with a transformer box body is arranged at the other end of the hose 5.
Preferably, the hose 5 is connected to the exhaust pipe 4 through a quick connector 6, and the end of the exhaust pipe 4 is matched with the quick connector 6.
Preferably, the air outlet end of the dry air generating device 3 is connected with a hose 5, the end of the hose 5 is connected with the air inlet pipe 2 through a quick connector 6, and the end of the air inlet pipe 2 is matched with the quick connector 6. And a quick connector is adopted to realize quick connection.
Preferably, the valve 7 is disposed on each of the air inlet pipe 2 and the air outlet pipe 4.
Preferably, the gas collecting bag 1 is arranged on the bracket 8, and the lower end of the bracket 8 is provided with a universal wheel 9 with a locking function. The device is convenient to move and fix.
Preferably, the gas collecting bag 1 is provided with a pressure gauge 10 and a safety valve 11.
Preferably, the connection flange 12 is a flange for connection to a phi 80 butterfly valve or a DN25 ball valve.
Preferably, at least 4 exhaust pipes 4 are provided. Taking a 500 kv main transformer as an example, there are basically four interfaces: the oil injection butterfly valve is arranged at the top phi 80 of the main transformer oil tank, the ball valves are monitored on line by 2 DN25, and the oil injection butterfly valve is arranged at the bottom phi 80 of the main transformer oil tank.
When the air-drying device is used, hoses with connecting flanges 12 of different types are selected for connecting the main transformer and the air-collecting bag 1 according to the types of valves which can be ventilated by the main transformer, then the dry air generating device is started, and the corresponding valves are started at the same time.
The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (8)
1. The utility model provides a main operation multipoint ventilation unit that examines in becoming, includes gas collection package (1), its characterized in that: the air inlet pipe (2) of the air collecting bag (1) is connected with the dry air generating device (3), a plurality of exhaust pipes (4) are arranged on the air collecting bag (1), the exhaust pipes (4) are connected with one end of a hose (5), and a connecting flange (12) used for being connected with a transformer box body is arranged at the other end of the hose (5).
2. The multi-point ventilation device for main transformer internal inspection operation according to claim 1, wherein: the hose (5) is connected with the exhaust pipe (4) through the quick connector (6), and the end part of the exhaust pipe (4) is matched with the quick connector (6).
3. The multi-point ventilation device for main transformer internal inspection operation according to claim 1, wherein: the air outlet end of the dry air generating device (3) is connected with a hose (5), the end part of the hose (5) is connected with an air inlet pipe (2) through a quick connector (6), and the end part of the air inlet pipe (2) is matched with the quick connector (6).
4. The multi-point ventilation device for main transformer internal inspection operation according to claim 1, wherein: valves (7) are arranged on the air inlet pipe (2) and the air outlet pipe (4).
5. The multi-point ventilation device for main transformer internal inspection operation according to claim 1, wherein: the gas collecting bag (1) is arranged on the support (8), and a universal wheel (9) with a locking function is arranged at the lower end of the support (8).
6. The multi-point ventilation device for main transformer internal inspection operation according to claim 1, wherein: the gas collecting bag (1) is provided with a pressure gauge (10) and a safety valve (11).
7. The multi-point ventilation device for main transformer internal inspection operation according to claim 1, wherein: the connecting flange (12) is a flange for connecting with a phi 80 butterfly valve or a DN25 ball valve.
8. The multi-point ventilation device for main transformer internal inspection operation according to claim 1, wherein: at least 4 exhaust pipes (4) are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321015904.2U CN220066635U (en) | 2023-04-28 | 2023-04-28 | Main transformer internal inspection operation multi-point ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321015904.2U CN220066635U (en) | 2023-04-28 | 2023-04-28 | Main transformer internal inspection operation multi-point ventilation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220066635U true CN220066635U (en) | 2023-11-21 |
Family
ID=88786119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321015904.2U Active CN220066635U (en) | 2023-04-28 | 2023-04-28 | Main transformer internal inspection operation multi-point ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220066635U (en) |
-
2023
- 2023-04-28 CN CN202321015904.2U patent/CN220066635U/en active Active
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| GR01 | Patent grant |