CN216530146U

CN216530146U - High tension switchgear with cooling function

Info

Publication number: CN216530146U
Application number: CN202123106384.XU
Authority: CN
Inventors: 郑纯颖; 陈冠希; 邵炜欢; 黄超; 陈腾坚; 林峻民; 谢姿炫; 周丽; 郑新; 吴成英; 宋国翠
Original assignee: Zhongshan Torch Polytechnic
Current assignee: Zhongshan Torch Polytechnic
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-13
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a high-voltage switch cabinet with a cooling function, wherein the interior of a handcart room (2) of a high-voltage switch cabinet (1) is sealed to form an accommodating cavity (23), an oil inlet hole (22) is formed above a side plate of the handcart room (2), the cooling oil (21) is filled to surround instruments in the accommodating cavity (23), an oil discharge pipe (6) is arranged below the side plate of the handcart room (2), a control valve (7) for controlling the opening or closing of the oil discharge pipe (6) is arranged on the oil discharge pipe (6), and finally, a semiconductor refrigerating sheet (9) for cooling the cooling oil (21) in the handcart room (2) is arranged on the outer side of the side plate of the handcart room (2). The handcart room cooling device has the advantages that the cooling oil (21) plays a role in cooling instruments in the handcart room (2), and the cooling effect of the cooling oil (21) is further improved by arranging the semiconductor refrigerating piece (9) on the outer side of the side plate of the handcart room (2).

Description

High tension switchgear with cooling function

Technical Field

The utility model relates to the field of high-voltage switch cabinets, in particular to a high-voltage switch cabinet with a cooling function.

Background

At present, a high-voltage switch cabinet is common electrical equipment and is widely used, and the temperature of an internal instrument, especially an instrument in a handcart room, of the high-voltage switch cabinet is basically overhigh in the using process, so that the instrument is easy to break down, and the power supply stability of the high-voltage switch cabinet is seriously influenced; there are some high tension switchgear cooling equipment now, and it produces cold air in the high tension switchgear through refrigerating plant, reaches the effect of cooling, however, the effect of such cooling is not obvious, can only carry out local cooling.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a high voltage switch cabinet with an obvious cooling effect and a cooling function.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

the utility model provides a high tension switchgear with cooling function, including high tension switchgear, the indoor portion of handcart that high tension switchgear carries out sealing treatment and forms and accept the chamber, the curb plate top in handcart room is equipped with the inlet port, it passes through to accept the intracavity the inlet port packing has the coolant oil, the coolant oil encloses accept the instrument of intracavity, the curb plate below in handcart room is equipped with the oil extraction pipe, and is equipped with the control valve that the control oil extraction pipe was opened or is closed on the oil extraction pipe.

In a preferred scheme of the utility model, a semiconductor refrigeration sheet for cooling oil in the handcart room is arranged outside a side plate of the handcart room.

In a preferred embodiment of the present invention, the handcart room side plate is provided with an accommodating cover for covering the semiconductor refrigeration piece.

In a preferred embodiment of the present invention, the accommodating cover is provided with heat dissipating holes.

In a preferred scheme of the utility model, a sealing strip is arranged at the joint of the handcart room and the handcart room door.

In a preferred scheme of the utility model, a lock catch for locking the handcart room door and the handcart room is arranged on the handcart room door.

In a preferable scheme of the utility model, the oil inlet hole is connected with an oil inlet pipe.

In a preferable scheme of the utility model, the pipe port cover of the oil inlet pipe is provided with a sealing cover.

The utility model has the beneficial effects that: sealing the interior of a handcart room of a high-voltage switch cabinet to form an accommodating cavity, and filling cooling oil into the accommodating cavity through an oil inlet hole, so that the cooling oil surrounds instruments in the accommodating cavity, and the cooling effect is achieved; and the semiconductor refrigerating sheet is arranged to further improve the cooling effect of cooling oil. And a lock catch is arranged on the handcart room door, and the handcart room door and the handcart room are tightly connected together through the lock catch, so that the handcart room door is prevented from being flushed away due to overlarge pressure intensity in the handcart room after cooling oil is filled.

Drawings

Fig. 1 is a schematic diagram of the handcart room opening of a high-voltage switch cabinet with a cooling function, provided by the utility model;

FIG. 2 is a vertical plane sectional view of a handcart room of a high-voltage switch cabinet with a cooling function, which is disclosed by the utility model;

fig. 3 is a schematic closing diagram of a handcart room of a high-voltage switch cabinet with a cooling function.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1 to 3, an embodiment of the present invention provides a high voltage switch cabinet with a cooling function, including a high voltage switch cabinet 1, where the inside of a handcart room 2 of the high voltage switch cabinet 1 is sealed by using a sealing member, the used sealing member may be a sealant, a sealing ring, or the like, so as to seal the handcart room 2 to form an accommodation cavity 23, an oil inlet 22 is arranged above a side plate of the handcart room 2, and the accommodation cavity 23 in the handcart room 2 is filled with cooling oil 21 through the oil inlet 22, so that the cooling oil 21 surrounds instruments in the accommodation cavity 23, thereby achieving a cooling effect. Therefore, in the use process of the high-voltage switch cabinet 1, the cooling oil 21 in the handcart room 2 can play a role in cooling and reducing the temperature, and the fault of instruments in the handcart room 2 due to high temperature is avoided. Meanwhile, in order to discharge the cooling oil 21 in the accommodating cavity, an oil discharge pipe 6 is arranged below a side plate of the handcart room 2, a control valve 7 for controlling the opening or closing of the oil discharge pipe 6 is arranged on the side plate of the handcart room 2, and the oil discharge pipe 6 is opened through the control valve 7 to discharge the cooling oil 21 in the handcart room 2. When the instrument in the handcart room breaks down, the oil discharge pipe 6 is opened through the control valve, the cooling oil in the accommodating cavity is discharged, and then the instrument in the handcart room 2 is overhauled.

In order to improve the cooling effect of the cooling oil 21, the semiconductor refrigeration sheets 9 are arranged on the side plates on the two sides of the handcart room 2, the semiconductor refrigeration sheet 9 on one side is an N-type semiconductor, the semiconductor refrigeration sheet on the other side is a P-type semiconductor, after the N-type semiconductor and the P-type semiconductor are connected into a galvanic couple and are electrified, current flows from the N-type element to the P-type element, at the moment, the semiconductor refrigeration sheet absorbs heat at the cold end and emits heat at the hot end, the surface of the cold end is connected with the outer surface of the handcart side plate of the switch cabinet, the sheet metal part separating the side plate of the cabinet body cools the cooling oil, and the hot end is in the same direction with the side plate of the cabinet body and discharges the heat to the outside of the cabinet body, so that the cooling oil 21 in the accommodating cavity 23 is cooled, the cooling effect of the cooling oil 21 is prevented from being reduced due to overhigh temperature, and the cooling effect of the cooling oil is improved. And the semiconductor refrigeration piece 9 is designed outside the handcart room, so that the semiconductor refrigeration piece 9 can dissipate heat, and the heat is discharged outside the handcart room instead of being dissipated inside the handcart room.

Further, the semiconductor refrigeration piece 9 is prevented from being exposed to the outside to cause easy damage, and the accommodating cover 8 capable of covering the semiconductor refrigeration piece 9 is arranged on the side plate of the handcart room 2 to protect the semiconductor refrigeration piece 9 and prevent the semiconductor refrigeration piece 9 from being exposed to the outside to cause damage.

In order to effectively dissipate heat after the semiconductor cooling fins 9 are covered by the storage cover 8, the storage cover 8 is provided with heat dissipating holes 81.

In order to prevent the cooling oil 21 from leaking from the joint between the handcart room 2 and the handcart room 2 door after the cooling oil 21 is filled, a sealing strip 31 is arranged at the joint between the handcart room 2 and the handcart room 2 door, and the joint between the handcart room 2 and the handcart room 2 door is sealed through the sealing strip 31.

In order to prevent the handcart room 2 door from being opened due to the excessive pressure in the handcart room 2 after the cooling oil 21 is filled, a lock catch 32 is arranged on the handcart room 2, and the handcart room 2 door and the handcart room 2 are tightly locked together through the lock catch 32.

In order to conveniently fill the handcart room 2 with the cooling oil 21, the oil inlet pipe 5 is connected to the oil inlet hole 22, and the oil inlet pipe 5 is bent upward, so that the cooling oil 21 is conveniently filled into the handcart room 2 through the oil inlet pipe 5.

There will be strong molecule of electric conductivity or insulating poor molecule in the air to mix in cooling oil 21 the inside, make cooling oil 21 lose the insulating characteristic of high pressure, lead to the internal circuit to puncture and produce the electric arc, simultaneously in order to avoid debris or dust to fall into handcart room 2 from advancing oil pipe 5, and then pollute cooling oil 21, lead to the increase of the clearance degree of difficulty to handcart room 2, so there is sealed lid 4 at the nozzle cap that advances oil pipe 5, cover the mouth of pipe that advances oil pipe 5 through sealed lid 4, prevent that strong molecule of electric conductivity or insulating poor molecule, debris and dust from advancing oil pipe 5 and getting into handcart room 2 in the air.

Claims

1. The utility model provides a high tension switchgear with cooling function, including high tension switchgear (1), its characterized in that, handcart room (2) inside of high tension switchgear (1) is sealed to be handled and is formed and accepts chamber (23), the curb plate top of handcart room (2) is equipped with inlet port (22), accept and pass through in chamber (23) inlet port (22) are filled and are had coolant oil (21), coolant oil (21) surround accept the instrument in chamber (23), the curb plate below of handcart room (2) is equipped with row oil pipe (6), and is equipped with control valve (7) that control row oil pipe (6) were opened or were closed on row oil pipe (6).

2. The high-voltage switch cabinet with the cooling function according to claim 1, wherein a semiconductor refrigerating sheet (9) for cooling the cooling oil (21) in the handcart room (2) is arranged outside a side plate of the handcart room (2).

3. The high-voltage switch cabinet with the cooling function according to claim 2, wherein a containing cover (8) for covering the semiconductor refrigeration piece (9) is arranged on a side plate of the handcart room (2).

4. The high voltage switch cabinet with cooling function according to claim 3, wherein the housing cover (8) is provided with heat dissipation holes (81).

5. The high-voltage switch cabinet with the cooling function according to any one of claims 1 to 4, characterized in that a sealing strip (31) is arranged at the joint of the handcart room (2) and the handcart room door.

6. The high-voltage switch cabinet with the cooling function according to claim 5, wherein a lock catch (32) for locking the handcart room door and the handcart room (2) is arranged on the handcart room door.

7. The high-voltage switch cabinet with the cooling function according to claim 6, wherein the oil inlet hole (22) is connected with an oil inlet pipe (5).

8. The high-voltage switch cabinet with cooling function according to claim 7, wherein the oil inlet pipe (5) has a sealing cover (4) on its pipe cover.