CN213025836U

CN213025836U - Shell water-cooled power capacitor

Info

Publication number: CN213025836U
Application number: CN202021173927.2U
Authority: CN
Inventors: 罗建利; 曹鸣捷; 徐晓亮; 邵晓军
Original assignee: Jiande Xinanjiang Electric Power Capacitor Co ltd
Current assignee: Jiande Xinanjiang Electric Power Capacitor Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-04-20
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a shell water-cooled power capacitor, including box and condenser tube, the condenser tube welding is on the box lateral wall, and the both ends of condenser tube are connected with the water injection well choke respectively. The shell water-cooled power capacitor has long service life and good heat dissipation.

Description

Shell water-cooled power capacitor

The technical field is as follows:

the utility model relates to a power capacitor specifically says to a shell water-cooled power capacitor.

Background art:

the cooling pipe of the existing water-cooled capacitor in China is welded on the capacitor core (namely, is arranged in the capacitor body), the main defect of the cooling pipe arranged in the capacitor body is easy water leakage (the water leakage is not easy to repair), the cooling pipe welded on the core is generally used as an electrode, the water in the cooling pipe is easy to electrolyze to form scale in the pipe after the cooling pipe is used as the electrode, the pipe diameter is reduced, and the water flow is reduced to ensure that the heat dissipation of the capacitor is poor. In the past, the capacitor is often damaged due to water leakage and poor heat dissipation.

The utility model has the following contents:

the utility model aims to solve the technical problem that a long service life is provided, the good shell water-cooled power capacitor dispels the heat, and this water-cooled power capacitor is difficult for leaking, has reduced use cost, has improved efficiency.

The technical solution of the utility model is that, a shell water-cooled power capacitor is provided, including box and condenser tube, the condenser tube welding is on the box lateral wall, and the both ends of condenser tube are connected with the water injection well choke respectively, and condenser tube locates on the box lateral wall.

Compared with the prior art after the structure more than adopting, the utility model has the advantages of it is following: the water pipe of the utility model is welded outside the capacitor body, and has four main advantages; firstly, the water pipe is not used as an electrode, the requirement on water quality is low, water in the water pipe is not easy to electrolyze, and the problems of scale formation, corrosion and the like on the inner wall of the water pipe are not easy to form, so that the service life of the capacitor is prolonged. And secondly, the water pipe is arranged on the capacitor box body through tests to take away the heat of the capacitor body, so that the working temperature of the capacitor is ensured. And thirdly, the capacitor shell can be grounded, and the water path is uncharged, so that safety is guaranteed. Fourthly, the water pipe is installed on the capacitor box body, water leakage is not easy to occur, water leakage is convenient to maintain, normal use of the capacitor is not influenced, and the capacitor is damaged immediately as long as water leakage (even leakage) is involved unlike the traditional water-cooled capacitor. The research and development of the shell water-cooled power capacitor greatly reduce the use cost, improve the efficiency, ensure the quality and prolong the service life of the capacitor.

Preferably, the cooling water pipe surrounds the tank body at least one turn.

Preferably, the cooling water pipe has a circular or square structure.

Preferably, the cooling water pipe is in a U-shaped or serpentine structure bent back and forth.

Furthermore, U-shaped cooling water pipes are respectively welded and fixed on two sides of the box body.

Description of the drawings:

fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

The specific implementation mode is as follows:

the invention will be further explained with reference to the drawings and the detailed description below:

example 1

As shown in fig. 1 and 2, the power capacitor with the water-cooled shell comprises a box body 1 and a cooling water pipe 2, wherein the cooling water pipe 2 is welded on the side wall of the box body, the two ends of the cooling water pipe 2 are respectively connected with a water nozzle 3, and the water nozzle 3 is screwed at the two ends of the cooling water pipe or is welded and fixed at the two ends of the cooling water pipe. In order to increase the contact area, the cooling water pipe 2 is wound around the tank body at least once. The cooling water pipe 2 is a square metal pipe, but may be a circular metal pipe.

Example 2

As shown in fig. 3, a shell water-cooled power capacitor comprises a box body 1 and a cooling water pipe 2, wherein the cooling water pipe 2 is welded on the side wall of the box body, water nozzles are respectively connected at two ends of the cooling water pipe 2, and the water nozzles are screwed at two ends of the cooling water pipe or are welded and fixed at two ends of the cooling water pipe. In order to increase the contact area, the cooling water pipe 2 is in a U-shaped structure or is bent in a plurality of ways, and the section of the cooling water pipe 2 is a metal pipe with an outer square and an inner circle or a circular metal pipe. And, cooling water pipe 2 has 1 at least, can weld respectively in the relative both sides of box when 2.

The water pipe of the utility model is welded outside the capacitor body, and has four main advantages; firstly, the water pipe is not used as an electrode, the requirement on water quality is low, water in the water pipe is not easy to electrolyze, and the problems of scale formation, corrosion and the like on the inner wall of the water pipe are not easy to form, so that the service life of the capacitor is prolonged. And secondly, the water pipe is arranged on the capacitor box body through tests to take away the heat of the capacitor body, so that the working temperature of the capacitor is ensured. And thirdly, the capacitor shell can be grounded, and the water path is uncharged, so that safety is guaranteed. Fourthly, the water pipe is installed on the capacitor box body, water leakage is not easy to occur, water leakage is convenient to maintain, normal use of the capacitor is not influenced, and the capacitor is damaged immediately as long as water leakage (even leakage) is involved unlike the traditional water-cooled capacitor. The research and development of the shell water-cooled power capacitor greatly reduce the use cost, improve the efficiency, ensure the quality and prolong the service life of the capacitor.

The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. All the equivalent structures or equivalent flow changes made by using the contents of the specification and the attached drawings of the utility model are included in the patent protection scope of the utility model, if the connecting water nozzle can be outwards bent by any angle after extending out of the upper cover.

Claims

1. The utility model provides a shell water-cooled power capacitor, includes box and condenser tube, its characterized in that: the cooling water pipe is welded on the side wall of the box body, the two ends of the cooling water pipe are respectively connected with a water nozzle, and the cooling water pipe surrounds the box body for at least one circle.

2. The case water-cooled power capacitor according to claim 1, characterized in that: the cooling water pipe is in a U-shaped or serpentine structure bent back and forth.

3. The case water-cooled power capacitor according to claim 1, characterized in that: the cooling water pipe is in a round or square structure.

4. The case water-cooled power capacitor according to claim 2, characterized in that: and U-shaped cooling water pipes are respectively welded and fixed on two sides of the box body.