CN212672496U

CN212672496U - Pressure release device for oil-immersed transformer

Info

Publication number: CN212672496U
Application number: CN202021422111.9U
Authority: CN
Inventors: 张建煌; 陈家才
Original assignee: Guangdong Best Electric Co ltd
Current assignee: Guangdong Best Electric Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-03-09
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a pressure release device for an oil-immersed transformer, which comprises a valve body, wherein the inner wall of the valve body is fixedly connected with a clapboard and a fixing frame, the fixing frame is positioned below the partition plate, the lower end of the partition plate is fixedly connected with a fixing shaft, the outer side of the fixing shaft is sleeved with a spring, the upper end of the spring is fixedly connected with the clapboard, the lower end of the spring is fixedly connected with a sealing plug head, the outer side of the sealing plug head is fixedly connected with a sealing ring, the sealing plug head is connected with the inner wall of the valve body in a sealing way through the sealing ring, the utility model is provided with the telescopic ejector rod, the press switch and the alarm to be mutually matched for use, when the pressure releasing device releases the pressure, the telescopic ejector rod is pushed to move upwards, and the telescopic ejector rod moving upwards touches the press switch, therefore, the alarm is started to give an alarm to prompt electric power personnel, and the use safety of the pressure release device for the oil-immersed transformer is improved.

Description

Pressure release device for oil-immersed transformer

Technical Field

The utility model relates to an oil-immersed transformer technical field specifically is a pressure release for oil-immersed transformer.

Background

The oil immersed transformer is a novel high-performance transformer with more reasonable structure and better performance, the three-dimensional wound core is in three-dimensional arrangement of equilateral triangle because three core columns are in three-dimensional arrangement, no air gap exists in a magnetic circuit, the winding is more compact, the three magnetic circuits are consistent in length and shortest, and the cross sectional area of the core columns is closer to a circle, so that the performance is further improved, the loss is reduced, the noise is reduced, the three-phase balance is realized, the third harmonic component is reduced, the product is more suitable for urban and rural power and industrial and mining enterprise power grid transformation, and is more suitable for combined transformers and transformers for pre-installed substations to pollute transformers, and the pressure release device has the effect of preventing transformer oil tanks from deforming and exploding due to overlarge pressure.

However, the pressure release device for the oil-immersed transformer does not have an alarm function, and when the pressure release device for the oil-immersed transformer releases pressure, electric power personnel cannot find the pressure in time, so that preprocessing is performed. Therefore, the pressure release device for the oil-immersed transformer is provided.

Disclosure of Invention

An object of the utility model is to provide a pressure release for oil-immersed transformer to propose in solving above-mentioned background art that pressure release for oil-immersed transformer does not possess alarming function, when pressure release for oil-immersed transformer when release pressure, discovery that the electric power personnel can not be timely, thereby make the problem of preliminary treatment.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure release device for an oil-immersed transformer comprises a valve body, wherein a partition plate and a fixing frame are fixedly connected to the inner wall of the valve body, the fixing frame is positioned below the partition plate, a fixing shaft is fixedly connected to the lower end of the partition plate, a spring is sleeved on the outer side of the fixing shaft, the upper end of the spring is fixedly connected with the partition plate, a sealing plug is fixedly connected to the lower end of the spring, a sealing ring is fixedly connected to the outer side of the sealing plug, the sealing plug is hermetically connected to the inner wall of the valve body through the sealing ring, a shaft hole is formed in the central position of the surface of the sealing plug, a gasket is fixedly connected to the inner wall of the shaft hole, the fixing shaft is inserted into the shaft hole, a telescopic ejector rod is fixedly connected to the upper, the lower end of the valve body is detachably connected with a valve through a bolt.

Preferably, the welding of valve body one side has oil pipe and valve body and oil pipe intercommunication, the welding of valve body opposite side has blast pipe and valve body and blast pipe intercommunication.

Preferably, the upper end face of the partition plate is provided with a through hole, and the through hole is aligned with the telescopic ejector rod up and down.

Preferably, the outer side surface of the upper end of the valve body is provided with a through hole.

Preferably, a flange plate is welded at the lower end of the valve.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the utility model discloses a be provided with flexible ejector pin, press the switch and the alarm, make it use of mutually supporting, when pressure release device is when the pressure release, can promote flexible ejector pin upward movement, and upward movement's flexible ejector pin touching press the switch to start the alarm and report to the police and come the suggestion electric power personnel, improved oil-immersed transformer pressure release device's safety in utilization.

2. The utility model discloses a be provided with oil pipe, oil pipe can be so that inside to transformer oil bath along with pressure spun oil recovery, has realized the recycle of oil.

3. The utility model discloses a be provided with the valve, damage when needing to be changed when pressure release, close the valve to the fine oil blowout of avoiding in the transformer has made things convenient for change and maintenance to pressure release.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the top view structure of the fixing frame of the present invention.

Fig. 3 is a schematic view of the overlooking structure of the sealing plug and the sealing ring of the present invention.

In the figure: 1. a valve body; 2. a partition plate; 3. a push switch; 4. an alarm; 5. a fixed shaft; 6. a spring; 7. a fixed mount; 8. a gasket; 9. an oil pipe; 10. a flange plate; 11. a valve; 12. sealing the plug head; 13. an exhaust pipe; 14. a telescopic ejector rod; 15. a seal ring; 16. and the shaft hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a pressure release device for an oil-immersed transformer comprises a valve body 1, wherein a partition plate 2 and a fixing frame 7 are fixedly connected to the inner wall of the valve body 1, the fixing frame 7 is positioned below the partition plate 2, a fixing shaft 5 is fixedly connected to the lower end of the partition plate 2, a spring 6 is sleeved on the outer side of the fixing shaft 5, the upper end of the spring 6 is fixedly connected with the partition plate 2, a sealing plug 12 is fixedly connected to the lower end of the spring 6, a sealing ring 15 is fixedly connected to the outer side of the sealing plug 12, the sealing plug 12 is connected to the inner wall of the valve body 1 in a sealing manner through the sealing ring 15, a shaft hole 16 is formed in the surface center position of the sealing plug 12, a gasket 8 is fixedly connected to the inner wall of the shaft hole 16, the fixing shaft 5 is inserted into the shaft hole 16, a telescopic ejector rod 14 is fixedly connected to the, the press switch 3 is electrically connected with the alarm 4, and the lower end of the valve body 1 is detachably connected with a valve 11 through a bolt.

1 one side welding of valve body has oil pipe 9 and valve body 1 and oil pipe 9 intercommunication, 1 opposite side welding of valve body has blast pipe 13 and valve body 1 and blast pipe 13 intercommunication, and oil pipe 9 can retrieve transformer spun oil and blast pipe 13 makes gas discharge smoothly, perforation has been seted up to 2 up ends of baffle, and perforation aligns from top to bottom with flexible ejector pin 14, and flexible ejector pin 14 of being convenient for touches press switch 3, the through-hole has been seted up on 1 upper end outside surface of valve body, the transmission of the 4 sounds of alarm of being convenient for, 11 lower extreme welding of valve has ring flange 10, can install pressure release device and transformer tank.

Specifically, when transformer tank pressure was too big, gaseous promotion sealed chock plug 12 upward movement and make spring 6 compress, when sealed chock plug 12 moved to blast pipe 13 top, gaseous by blast pipe 13 discharge, and can promote flexible ejector pin 14 upward movement, and upward movement's flexible ejector pin 14 touches push switch 3, thereby start alarm 4 and report to the police and indicate electric power personnel, oil pipe 9 can be so that retrieve to transformer oil bath inside along with pressure spun oil, the recycle of oil has been realized, because spring 6's elastic action makes sealed chock plug 12 resume the normal position after the pressure release finishes, when pressure release damages needs to be changed, close valve 11, thereby fine avoid the oil blowout in the transformer, the change and the maintenance to pressure release have made things convenient for.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pressure release device for oil-immersed transformer, includes valve body (1), its characterized in that: the inner wall of the valve body (1) is fixedly connected with a partition plate (2) and a fixing frame (7), the fixing frame (7) is positioned below the partition plate (2), the lower end of the partition plate (2) is fixedly connected with a fixing shaft (5), the outer side of the fixing shaft (5) is sleeved with a spring (6), the upper end of the spring (6) is fixedly connected with the partition plate (2), the lower end of the spring (6) is fixedly connected with a sealing plug head (12), the outer side of the sealing plug head (12) is fixedly connected with a sealing ring (15), the sealing plug head (12) is hermetically connected with the inner wall of the valve body (1) through the sealing ring (15), a shaft hole (16) is formed in the surface center position of the sealing plug head (12), a gasket (8) is fixedly connected with the inner wall of the shaft hole (16), the fixing shaft (5) is inserted into the shaft hole (16, baffle (2) upper end can be dismantled and be connected with alarm (4), valve body (1) top can be dismantled and be connected with press switch (3), press switch (3) and alarm (4) electric connection, valve body (1) lower extreme can be dismantled through the bolt and be connected with valve (11).

2. The pressure relief device for an oil filled transformer of claim 1, wherein: the oil pipe (9) and the valve body (1) are welded on one side of the valve body (1) and communicated with the oil pipe (9), and the exhaust pipe (13) and the valve body (1) are welded on the other side of the valve body (1) and communicated with the exhaust pipe (13).

3. The pressure relief device for an oil filled transformer of claim 1, wherein: the upper end face of the partition plate (2) is provided with a through hole, and the through hole is aligned with the telescopic ejector rod (14) up and down.

4. The pressure relief device for an oil filled transformer of claim 1, wherein: the outer side surface of the upper end of the valve body (1) is provided with a through hole.

5. The pressure relief device for an oil filled transformer of claim 1, wherein: the lower end of the valve (11) is welded with a flange plate (10).