CN213364120U

CN213364120U - Oil-immersed transformer body pressure monitoring device

Info

Publication number: CN213364120U
Application number: CN202022382777.2U
Authority: CN
Inventors: 颜强; 刘远灵; 张大宏; 马金平; 李现启; 李建魁; 李林省; 崔展豪; 尚等锋; 金鑫
Original assignee: Yunnan Huadian Jinshajiang Midstream Water Power Development Co ltd Liyuan Generating Branch
Current assignee: Yunnan Huadian Jinshajiang Midstream Water Power Development Co ltd Liyuan Generating Branch
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-06-04
Anticipated expiration: 2030-10-23

Abstract

The utility model belongs to the technical field of the pressure monitoring device technique and specifically relates to an oil-immersed transformer body pressure monitoring device is related to, including the transformer main part, be connected with wireless pressure transmitter through the valve in the exhaust hole of transformer main part, wireless pressure transmitter's front end joint is fixed with the end cover, and the fixed pressure display table that is equipped with that inlays in the middle of the end cover openly, one side of wireless pressure transmitter is rotated and is connected with wireless transmission device, is equipped with the shock attenuation sealed dish between valve and the transformer main part. This oil-immersed transformer body pressure monitoring device passes through the valve and connects wireless pressure transmitter in the transformer main part, and the installation is dismantled all quick convenient, and the timing inspection of being convenient for can realize the real time monitoring of body pressure when moving the transformer, improves pressure monitoring's the degree of accuracy and promptness, and then when realizing overhauing to transformer body evacuation in-process to the accurate control of conservator body pressure.

Description

Oil-immersed transformer body pressure monitoring device

Technical Field

The utility model relates to a pressure monitoring technical field, specifically speaking relates to an oil-immersed transformer body pressure monitoring device.

Background

In the process of vacuumizing the body of the oil immersed transformer after overhaul, judging whether the vacuum degree of the transformer body depends on a vacuum pressure gauge of the oil filter body, and judging whether vacuumizing is stopped. Meanwhile, the conservator body has large space, the elasticity of the capsule is poor, the volume is large, the body pressure cannot be monitored in real time in the vacuumizing process, and the capsule cannot neutralize the body pressure after the bypass valve is closed so as to cause the normal breathing in the operation process when the vacuum degree is too high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil-immersed transformer body pressure monitoring device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an oil-immersed transformer body pressure monitoring device, includes the transformer main part, be equipped with the exhaust hole on the one end lateral wall of transformer main part, be connected with wireless pressure transmitter through the valve in the exhaust hole, wireless pressure transmitter's front end joint is fixed with the end cover, the positive middle fixed pressure display table that is equipped with of inlaying of end cover, one side of wireless pressure transmitter is rotated and is connected with wireless transmission device, the valve with be equipped with the shock attenuation sealed dish between the transformer main part.

Preferably, a vent plug is clamped and fixed in the vent hole.

Preferably, one side of the middle of the valve is rotatably connected with a valve switch, an upper connecting pipe is integrally formed at the top end of the valve, and a lower connecting pipe is integrally formed at the bottom end of the valve.

Preferably, the lower half section of the lower connecting pipe is in threaded connection with the vent plug.

Preferably, the bottom end of the wireless pressure transmitter is clamped and fixed with a mounting pipe, and the mounting pipe is in threaded connection with the upper connecting pipe.

Preferably, the shock-absorbing sealing disk is hermetically sealed on the outer side of the upper half section of the lower connecting pipe.

Preferably, the bottom surface of the shock absorbing sealing disk is in contact with the outer side wall of the transformer body.

Compared with the prior art, the beneficial effects of the utility model are that: this oil-immersed transformer body pressure monitoring device passes through the valve and connects wireless pressure transmitter in the transformer main part, and the installation is dismantled all quick convenient, and the timing inspection of being convenient for can realize the real time monitoring of body pressure when moving the transformer, improves pressure monitoring's the degree of accuracy and promptness, and then when realizing overhauing to transformer body evacuation in-process to the accurate control of conservator body pressure.

Drawings

Fig. 1 is a schematic view of the overall structure of the utility model;

fig. 2 is a schematic structural diagram of a transformer body in the utility model;

fig. 3 is a schematic view of a partial structure of the utility model;

fig. 4 is a schematic view of the split structure of the utility model.

In the figure:

1. a transformer body; 11. an exhaust hole; 12. a vent plug;

2. a valve; 21. opening and closing a valve; 22. an upper connecting pipe; 23. a lower connecting pipe;

3. a wireless pressure transmitter; 31. an end cap; 311. a pressure display gauge; 32. a wireless transmission device; 33. installing a pipe;

4. a shock absorbing sealing disk.

Detailed Description

The technical solution in the present invention will be clearly and completely described below with reference to the drawings in the present invention, and it is obvious that the described utility model is only a part of the utility model rather than the whole utility model. Based on utility model provides a, all other utility model that the ordinary skilled person in the art obtained under the prerequisite of not making creative work all belong to the utility model discloses the scope of protection.

In the description of the present invention, it is to be understood that the terms "intermediate", "upper", "lower", "front", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides an oil-immersed transformer body pressure monitoring device, includes transformer main part 1, be equipped with exhaust hole 11 on transformer main part 1's the one end lateral wall, be connected with wireless pressure transmitter 3 through valve 2 in the exhaust hole 11, wireless pressure transmitter 3's front end joint is fixed with end cover 31, end cover 31 openly middle fixed the inlaying is equipped with pressure display table 311, one side of wireless pressure transmitter 3 is rotated and is connected with wireless transmission device 32, be equipped with shock attenuation sealed dish 4 between valve 2 and the transformer main part 1.

In this embodiment, one side in the middle of valve 2 rotates and is connected with valve switch 21, can control wireless pressure transmitter 3 and the inside intercommunication of transformer main part 1 through valve switch 21, is convenient for monitor pressure variation.

Further, an upper connection pipe 22 is integrally formed at the top end of the valve 2, and a lower connection pipe 23 is integrally formed at the bottom end of the valve 2.

In this embodiment, a vent plug 12 is fixed to the vent hole 11.

Further, the lower half section of the lower connecting pipe 23 is in threaded connection with the vent plug 12, so that the valve 2 can be tightly and hermetically connected with the transformer main body 1 to avoid air leakage.

In this embodiment, the bottom end of wireless pressure transmitter 3 is clamped and fixed with mounting pipe 33, and mounting pipe 33 and upper connecting pipe 22 are in threaded connection, so that valve 2 can be tightly and hermetically connected with wireless pressure transmitter 3, pressure change can be monitored accurately, and wireless pressure transmitter 3 can be detached conveniently for timing verification.

In this embodiment, the shock-absorbing sealing disk 4 is hermetically sleeved on the outer side of the upper half section of the lower connecting pipe 23, so that the shock-absorbing sealing disk 4 and the lower connecting pipe 23 are tightly connected.

Further, the bottom surface of shock attenuation sealed dish 4 contacts with transformer body 1's lateral wall, in the use, can smooth shock attenuation sealed dish 4 from inside to outside with the hand and make it closely adsorb on transformer body 1's lateral wall, makes the in-process of suction vacuum can alleviate valve 2's vibrations, and further strengthens the leakproofness between valve 2 and the transformer body 1, guarantees the degree of accuracy of monitoring.

In addition, the working principle of the wireless pressure transmitter 3 is well known to those skilled in the art and will not be described herein.

The utility model discloses an oil-immersed transformer body pressure monitoring device is when using, at first be connected to transformer body 1 with wireless pressure transmitter 3 through valve 2 on, secondly open valve switch 21, smooth absorption at transformer body 1 with shock attenuation sealed dish 4 again on the surface, then carry out the operation of suction vacuum to transformer body 1 according to conventional flow, look over pressure display table 311 in real time at this in-process and can judge the vacuum in real time to the operation of suction can in time stop when vacuum reaches the requirement.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. The technical personnel of this trade should understand, the utility model does not receive the restriction of above-mentioned utility model, and what describe in above-mentioned utility model and the description only does the preferred example of the utility model to need not restrict the utility model, under the prerequisite that does not deviate from the spirit and scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the scope of the utility model that claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an oil-immersed transformer body pressure monitoring device, includes transformer main part (1), its characterized in that: be equipped with exhaust hole (11) on the one end lateral wall of transformer main part (1), be connected with wireless pressure transmitter (3) through valve (2) in exhaust hole (11), the front end joint of wireless pressure transmitter (3) is fixed with end cover (31), fixed the inlaying in the middle of end cover (31) is positive is equipped with pressure display table (311), one side of wireless pressure transmitter (3) is rotated and is connected with wireless transmission device (32), valve (2) with be equipped with shock attenuation sealed dish (4) between transformer main part (1).

2. Oil filled transformer body pressure monitoring device according to claim 1, characterized in that: an exhaust plug (12) is fixedly clamped in the exhaust hole (11).

3. Oil filled transformer body pressure monitoring device according to claim 2, characterized in that: valve switch (21) is connected in the rotation of centre one side of valve (2), the top integrated into one piece of valve (2) has last connecting pipe (22), the bottom integrated into one piece of valve (2) has lower connecting pipe (23).

4. Oil filled transformer body pressure monitoring device according to claim 3, characterized in that: the lower half section of the lower connecting pipe (23) is in threaded connection with the exhaust plug (12).

5. Oil filled transformer body pressure monitoring device according to claim 4, characterized in that: the bottom end joint of wireless pressure transmitter (3) is fixed with installation pipe (33), installation pipe (33) with go up connecting pipe (22) threaded connection.

6. Oil filled transformer body pressure monitoring device according to claim 5, characterized in that: the shock absorption sealing disc (4) is sleeved on the outer side of the upper half section of the lower connecting pipe (23) in a sealing mode.

7. Oil filled transformer body pressure monitoring device according to claim 1, characterized in that: the bottom surface of the shock absorption sealing disc (4) is in contact with the outer side wall of the transformer body (1).