CN216818039U - Special tool for oil drainage internal inspection of three-phase integrated large transformer - Google Patents
Special tool for oil drainage internal inspection of three-phase integrated large transformer Download PDFInfo
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- CN216818039U CN216818039U CN202122380456.3U CN202122380456U CN216818039U CN 216818039 U CN216818039 U CN 216818039U CN 202122380456 U CN202122380456 U CN 202122380456U CN 216818039 U CN216818039 U CN 216818039U
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- internal inspection
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Abstract
The utility model belongs to a special tool for internal inspection of oil drainage of a transformer, and particularly relates to a special tool for internal inspection of oil drainage of a three-phase integrated large-scale transformer. The three-way pipe comprises a three-way pipe, a metal hose, a pipeline with a ball valve, a pipeline and a corrugated pipeline, wherein a second flange surface of the first three-way pipe is connected with a seventh flange surface of the metal hose, and a third flange surface of the first three-way pipe is connected with a twelfth flange surface of the pipeline; the eleventh flange surface of the pipeline is connected with the fourteenth flange surface of the second corrugated pipeline; the eighth flange surface of the metal hose is connected with the ninth flange surface of the pipeline with the ball valve; the tenth flange surface of the pipeline with the ball valve is connected with the fifth flange surface of the second three-way pipeline; and the third flange surface of the second three-way pipeline is connected with the thirteenth flange surface of the first corrugated pipeline. Has the advantages that: by using the special tool provided by the utility model in the oil drainage internal inspection project of the three-phase integrated large transformer, the efficiency and the inspection quality of the oil drainage internal inspection work can be greatly improved.
Description
Technical Field
The utility model belongs to a special tool for internal inspection of oil drainage of a transformer, and particularly relates to a special tool for internal inspection of oil drainage of a three-phase integrated large-scale transformer.
Background
The transformer is used as a junction device of a power system, the reliability of the transformer directly affects the safe operation of the whole power system, and therefore, the transformer is indispensable for periodically carrying out maintenance. For a large-scale oil-immersed transformer in operation, components such as a winding, transformer oil, a cooling system, an on-load tap changer and the like play an extremely important role, so that except for conventional monitoring means such as oil sample analysis, partial discharge test, infrared imaging temperature measurement and the like, most power plants need to regularly execute three-phase integrated large-scale transformer oil drainage internal inspection work so as to directly inspect and evaluate the operation condition of the transformer.
In the conventional process of carrying out oil drainage and internal inspection of a three-phase integrated large transformer, no communicating pipe is used during vacuumizing and oil filling, so that a transformer conservator, a main mailbox, a tap switch oil tank, a vacuum pump and an oil filling machine cannot be kept at the same pressure level, and irreversible damage can be caused due to overlarge pressure difference in each oil tank.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a special tool for oil drainage internal inspection of a three-phase integrated large transformer, which can effectively improve the efficiency and the inspection quality of oil drainage internal inspection work.
The technical scheme of the utility model is as follows: a three-phase integrated large transformer oil drain internal inspection special tool comprises a first three-way pipeline, a second three-way pipeline, a metal hose, a pipeline and a pipeline with a ball valve, wherein a second flange surface of the first three-way pipeline is connected with a seventh flange surface of the metal hose, and a third flange surface of the first three-way pipeline is connected with a twelfth flange surface of the pipeline; the eleventh flange surface of the pipeline is connected with the fourteenth flange surface of the second corrugated pipeline; the eighth flange surface of the metal hose is connected with the ninth flange surface of the pipeline with the ball valve; the tenth flange surface of the pipeline with the ball valve is connected with the fifth flange surface of the second three-way pipeline; a third flange surface of the second three-way pipeline is connected with a thirteenth flange surface of the first corrugated pipeline; the first joint of the first corrugated pipe is connected with a vacuum pump.
Two ends of the first three-way pipeline are provided with flanges, and holes are evenly distributed on the flanges; the branch pipeline is positioned at the axial middle point of the main pipeline, one end of the branch pipeline is provided with a flange plate, and holes are evenly distributed on the flange plate.
Two ends of the second three-way pipeline are provided with flanges, and holes are evenly distributed on the flanges; the branch pipeline is positioned at the axial middle point of the main pipeline, one end of the branch pipeline is provided with a flange, and the flange is provided with evenly distributed holes.
Two ends of the metal hose are respectively provided with a flange.
The inner material of the metal hose is 304 corrugated pipe, and the outer material is 304 metal mesh grid; the specifications of the flanges at two sides are consistent, and the flanges are evenly provided with holes.
The two ends of the pipeline with the ball valve are provided with flanges, and the flanges are provided with evenly distributed holes; a ball valve is arranged at the axial middle point of the pipeline, and the opening degree is 90 degrees.
The two ends of the pipeline are provided with flanges.
The flanges at the two ends of the pipeline have different outer diameters.
One end of the first corrugated hose is provided with a flange, and the other side of the first corrugated hose is provided with a quick connector.
One end of the second corrugated hose is provided with a flange, and the other end of the second corrugated hose is provided with a quick connector.
The utility model has the beneficial effects that: by using the special tool provided by the utility model in the oil drainage internal inspection project of the three-phase integrated large-scale transformer, the efficiency and the maintenance quality of the oil drainage internal inspection work can be greatly improved.
Drawings
FIG. 1 is a schematic structural view of a first three-way pipeline of a special tool for oil drainage and internal inspection of a three-phase integrated large-scale transformer provided by the utility model;
FIG. 2 is a schematic structural diagram of a second three-way pipeline of the special tool for oil drainage and internal inspection of the three-phase integrated large-scale transformer provided by the utility model;
FIG. 3 is a schematic structural diagram of a metal hose of a special tool for internal inspection of oil drainage of a three-phase integrated large transformer according to the present invention;
FIG. 4 is a schematic structural diagram of a pipeline with a ball valve of a special tool for oil drainage and internal inspection of a three-phase integrated large-scale transformer provided by the utility model;
FIG. 5 is a schematic view of a pipeline structure of a special tool for oil drainage and internal inspection of a three-phase integrated large-sized transformer provided by the utility model;
FIG. 6 is a schematic structural view of a first corrugated pipe of the special tool for oil drainage and internal inspection of the three-phase integrated large-scale transformer provided by the utility model;
fig. 7 is a schematic structural view of a second corrugated pipe of the special tool for oil drainage and internal inspection of the three-phase integrated large-scale transformer provided by the utility model;
fig. 8 is a schematic structural diagram of a special tool for oil drainage and internal inspection of a three-phase integrated large transformer provided by the utility model.
In the figure, 1 a first three-way pipeline, 2 a second three-way pipeline, 3 a metal hose, 4 a pipeline with a ball valve, 5 a pipeline, 6 a first corrugated pipeline, 7 a second corrugated pipeline, 8 a transformer tap changer oil tank, 9 a transformer conservator, 10 a vacuum pump, 11 a first flange surface, 12 a second flange surface, 13 a third flange surface, 21 a fourth flange surface, 22 a fifth flange surface, 23 a sixth flange surface, 31 a seventh flange surface, 32 an eighth flange surface, 41 a ninth flange surface, 42 a tenth flange surface, 51 an eleventh flange surface, 52 a twelfth flange surface, 61 a first joint, 62 a thirteenth flange surface, 71 a second joint and 72 a fourteenth flange surface.
Detailed Description
The utility model is described in further detail below with reference to the figures and the embodiments.
The utility model provides a special tool for oil drainage internal inspection of a three-phase integrated large transformer, which comprises a first three-way pipeline 1, a second three-way pipeline 2, a metal hose 3, a pipeline 4 with a ball valve, a pipeline 5, a first corrugated pipeline 6 and a second corrugated pipeline 7.
As shown in fig. 8, when the three-way pipe joint is used, the first flange surface 11 of the first three-way pipe 1 is connected with the exhaust flange at the top side of the transformer conservator 9, the second flange surface 12 of the first three-way pipe 1 is connected with the seventh flange surface 31 of the metal hose 3, and the third flange surface 13 of the first three-way pipe 1 is connected with the twelfth flange surface 52 of the pipe 5; the eleventh flange surface 51 of the pipe 5 is connected with the fourteenth flange surface 72 of the second corrugated pipe 7; the first joint 71 of the second corrugated pipe 7 is connected with a pressure relief valve at the top of the transformer tap switch oil tank 8; the eighth flange surface 32 of the metal hose 3 is connected to the ninth flange surface 41 of the pipe 4 with a ball valve; the tenth flange face 42 of the pipe 4 with the ball valve is connected with the fifth flange face 22 of the second tee pipe 2; a fourth flange surface 21 of the second three-way pipeline 2 is connected with a central exhaust flange at the top of the transformer conservator 9, and a third flange surface 23 of the second three-way pipeline 2 is connected with a thirteenth flange surface 62 of the first corrugated pipeline 6; the first connection 61 of the first bellows tube 6 is connected to the vacuum pump 10.
Through the series of connection, the transformer conservator 9, the main oil tank, the tap switch oil tank and the vacuum pump 10 are communicated, and the same pressure level can be kept, so that irreversible damage caused by overlarge pressure difference in the oil tanks in the transformer during vacuumizing and oil injection is avoided.
The main pipeline of the first three-way pipeline 1 is 200mm long, 100mm in outer diameter and 80mm in inner diameter, two ends of the main pipeline are respectively provided with a flange plate with 180mm in outer diameter, and 8 openings with 17.5mm in diameter are evenly distributed on the flange plate; the branch pipeline is positioned at the axial middle point of the main pipeline, the length of the branch pipeline is 90mm, the inner diameter of the branch pipeline is 30mm, a flange plate with the outer diameter of 120mm is arranged at one end of the branch pipeline, and 4 open holes with the diameter of 13mm are evenly distributed on the flange plate.
The main pipeline of the second three-way pipeline 2 is 150mm long, 35mm in outer diameter and 25mm in inner diameter, two ends of the main pipeline are respectively provided with a flange plate with 115mm in outer diameter, and 4 openings with 13mm in diameter are evenly distributed on the flange plate; the branch pipeline is positioned at the axial middle point of the main pipeline, the length of the branch pipeline is 132.5mm, the outer diameter of the branch pipeline is 35mm, the inner diameter of the branch pipeline is 25mm, a flange plate with the outer diameter of 115mm is arranged at one end of the branch pipeline, and 4 openings with the diameter of 13mm are evenly distributed on the flange plate.
Two ends of the metal hose 3 are respectively provided with a flange. The length of the metal hose is 1000mm, the diameter is 35mm, the inner material is 304 corrugated pipe, and the outer material is 304 metal mesh; the flanges on the two sides have the same specification, the outer diameter is 115mm, and 4 open pores with the diameter of 16mm are evenly distributed on the disk.
The pipeline 4 with the ball valve is 80mm long, 45mm in outer diameter and 24mm in inner diameter, two ends of the pipeline are respectively provided with a flange plate with an outer diameter of 115mm, and 4 openings with a diameter of 14mm are evenly distributed on the flange plate; a ball valve is arranged at the axial midpoint of the pipeline, the opening degree of the ball valve is 90 degrees, and the opening and closing of the pipeline can be controlled.
The pipeline 5 is 135mm long, 35mm in outer diameter and 25mm in inner diameter, one end of the pipeline is provided with a flange plate with the outer diameter of 115mm, and 4 openings with the diameter of 13mm are evenly distributed on the flange plate; the other end is a flange plate with the outer diameter of 165mm, and 4 open pores with the diameter of 17.5mm are evenly distributed on the flange plate.
One end of the first corrugated hose 6 is provided with a flange. The corrugated hose is 6000mm in length and 25mm in diameter and is made of PVC; the outer diameter of a flange on one side is 165mm, 4 open holes with the diameter of 17mm are evenly distributed on the disc, and a quick connector is installed on the other side and used for being connected to vacuum pumping equipment.
One end of the second corrugated hose 7 is provided with a flange. The corrugated hose is 6000mm in length and 25mm in diameter and is made of PVC; the outer diameter of a flange on one side of the pressure relief valve is 115mm, 4 open holes with the diameter of 16mm are evenly distributed on the disc, and a quick connector is installed on the other side of the pressure relief valve and used for being connected to a pressure relief valve on the top of a transformer tap switch oil tank.
The size of the utility model completely meets the field requirement, is convenient to operate, easy to store, not easy to damage, low in manufacturing cost and process requirement and has popularization value.
The utility model discloses a design and manufacture accomplishes the back, successively is used for twice integrative large-scale transformer oil drainage of three-phase to examine work, all coincide field device size and work needs, has promoted efficiency and maintenance quality by a wide margin.
Claims (10)
1. The utility model provides a specialized tool is examined in integrative large-scale transformer oil drainage of three-phase, its characterized in that: the three-way pipe comprises a first three-way pipe, a second three-way pipe, a metal hose, a pipe and a pipeline with a ball valve, a first corrugated pipe and a second corrugated pipe, wherein the second flange surface of the first three-way pipe is connected with the seventh flange surface of the metal hose, and the third flange surface of the first three-way pipe is connected with the twelfth flange surface of the pipeline; the eleventh flange surface of the pipeline is connected with the fourteenth flange surface of the second corrugated pipeline; the eighth flange surface of the metal hose is connected with the ninth flange surface of the pipeline with the ball valve; the tenth flange surface of the pipeline with the ball valve is connected with the fifth flange surface of the second three-way pipeline; a third flange surface of the second three-way pipeline is connected with a thirteenth flange surface of the first corrugated pipeline; the first joint of the first corrugated pipe is connected with a vacuum pump.
2. The special tool for oil drainage and internal inspection of the three-phase integrated large transformer as claimed in claim 1, wherein: two ends of the first three-way pipeline are provided with flanges, and holes are evenly distributed on the flanges; the branch pipeline is positioned at the axial middle point of the main pipeline, one end of the branch pipeline is provided with a flange plate, and holes are evenly distributed on the flange plate.
3. The special tool for oil drainage and internal inspection of the three-phase integrated large transformer as claimed in claim 1, wherein: two ends of the second three-way pipeline are provided with flanges, and holes are evenly distributed on the flanges; the branch pipeline is located at the axial middle point of the main pipeline, one end of the branch pipeline is provided with a flange plate, and the flange plate is provided with evenly distributed holes.
4. The special tool for oil drainage and internal inspection of the three-phase integrated large transformer as claimed in claim 1, wherein: two ends of the metal hose are respectively provided with a flange.
5. The special tool for oil drainage and internal inspection of the three-phase integrated large transformer as claimed in claim 4, wherein: the inner material of the metal hose is 304 corrugated pipe, and the outer material is 304 metal mesh grid; the specifications of the flanges at two sides are consistent, and the flanges are evenly provided with holes.
6. The special tool for oil drainage and internal inspection of the three-phase integrated large transformer as claimed in claim 1, wherein: the two ends of the pipeline with the ball valve are provided with flanges, and the flanges are provided with evenly distributed holes; a ball valve is arranged at the axial middle point of the pipeline, and the opening degree is 90 degrees.
7. The special tool for oil drainage and internal inspection of the three-phase integrated large transformer as claimed in claim 1, wherein: the two ends of the pipeline are provided with flanges.
8. The special tool for oil drainage and internal inspection of the three-phase integrated large transformer as claimed in claim 7, wherein: the flanges at the two ends of the pipeline have different outer diameters.
9. The special tool for oil drainage and internal inspection of the three-phase integrated large transformer as claimed in claim 1, wherein: one end of the first corrugated pipe is provided with a flange plate, and the other side of the first corrugated pipe is provided with a quick connector.
10. The special tool for the oil drainage internal inspection of the three-phase integrated large transformer according to claim 1, characterized in that: one end of the second corrugated pipeline is provided with a flange plate, and the other side of the second corrugated pipeline is provided with a quick connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122380456.3U CN216818039U (en) | 2021-09-29 | 2021-09-29 | Special tool for oil drainage internal inspection of three-phase integrated large transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122380456.3U CN216818039U (en) | 2021-09-29 | 2021-09-29 | Special tool for oil drainage internal inspection of three-phase integrated large transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216818039U true CN216818039U (en) | 2022-06-24 |
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ID=82039886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122380456.3U Active CN216818039U (en) | 2021-09-29 | 2021-09-29 | Special tool for oil drainage internal inspection of three-phase integrated large transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216818039U (en) |
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2021
- 2021-09-29 CN CN202122380456.3U patent/CN216818039U/en active Active
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