CN210535473U

CN210535473U - Bridging device of water-cooling coil

Info

Publication number: CN210535473U
Application number: CN201921927744.2U
Authority: CN
Inventors: 汪得利; 万燕; 吴喜明
Original assignee: Jiashan Sunking Electrical Equipment Technology Co ltd
Current assignee: Jiashan Sunking Electrical Equipment Technology Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-05-15
Anticipated expiration: 2029-11-08

Abstract

The utility model provides a bridging device of water-cooling coil, relates to high voltage power transmission and distribution technical field, has solved the unable regulation of flow of cooling water in the water-cooling coil, the unable problem of control of the temperature of reactor. The water-cooling coil is used on the reactor and comprises a coil body, a coil water inlet and a coil water outlet. The coil body is provided with a first connecting port and a second connecting port. The bridging device of the water-cooling coil comprises a bridge frame body, a cut-off device, a bridge frame water inlet pipe and a bridge frame water outlet pipe. The cooling water flows in from the coil water inlet, enters the bridge body through the first connector and the bridge water inlet pipe, and then flows out from the coil water outlet through the bridge water outlet pipe and the second connector.

Description

Bridging device of water-cooling coil

Technical Field

The utility model relates to a high voltage power transmission and distribution technical field, especially a bridging device of water-cooling coil.

Background

Compared with the traditional high-voltage alternating-current transmission technology, the high-voltage direct-current transmission technology can greatly improve the transmission capacity and transmission efficiency and reduce the loss of electric energy in the transmission process. The converter valve is a key device for high-voltage direct-current transmission and consists of a thyristor and an electric protection device. The valve reactor is a key component for protecting the thyristor in the converter valve device, and aims to limit the higher current rise rate di/dt and the voltage rise rate du/dt generated in an electric loop in the switching process of the thyristor, thereby providing a reliable and efficient protection component for the safe operation of the thyristor.

The existing domestic direct current transmission line has been operated for decades, equipment is in urgent need of updating, the updated reactor needs to improve the defects of the original reactor in structural design, structurally and electrically meets the matching with the original converter valve, and meanwhile, the consistency with the existing reactor needs to be kept in the waterway flow resistance, and the iron core heating temperature of the reactor is ensured to be controlled within the allowable range of the insulating material. The method has great practical significance for prolonging the service life of the reactor.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a bridging device for water-cooling coil, which can solve the above technical problems.

A bridging device of a water-cooling coil is used on a reactor, the water-cooling coil comprises a coil body, a coil water inlet positioned at one end of the coil body, and a coil water outlet positioned at the other end of the coil body, wherein the coil body is provided with a first connecting port, the bridging device of the water-cooling coil comprises a bridge frame body for controlling the flow speed of cooling water, an interception mechanism arranged on the coil body and positioned between the first connector and the second connector, and a bridge frame water inlet pipe for connecting the first connector and the bridge frame body, and the bridge water outlet pipe is connected with the second connector and the bridge body, cooling water flows in from the coil water inlet, enters the bridge body through the first connector and the bridge water inlet pipe, and then flows out from the coil water outlet through the bridge water outlet pipe and the second connector.

Further, the coil body has a structure of any one of a rectangular tube and a circular tube.

Furthermore, the bridging body comprises a cover shell and a hollow pipe which is arranged in the cover shell and is connected with the bridge water inlet pipe and the bridge water outlet pipe.

Further, the coil body is welded with the bridge water inlet pipe and the bridge water outlet pipe.

Further, the distances from the interception mechanism to the bridge water inlet pipe and the distances from the interception mechanism to the bridge water outlet pipe are the same.

Furthermore, a circulating device is arranged between the coil water inlet and the coil water outlet in a connecting manner.

Compared with the prior art, the utility model provides a pair of bridging device of water-cooling coil inserts this bridging device as the attenuator in water route through the optional position at water-cooling coil, can effectively control the flow resistance characteristic of reactor. And cooling water is introduced into the water-cooling coil, and the cooling water flow rate of the bridge body is adjusted to ensure that the heating temperature of the iron core of the reactor is within the allowable range of the insulating material, so that the heat dissipation performance and the service performance of the reactor are improved, and the service life is prolonged.

Drawings

Embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is the utility model provides a water-cooling coil's of bridging device of water-cooling coil's schematic structure view.

Fig. 2 is a schematic structural diagram of a bridging device for a water-cooling coil provided by the present invention.

Detailed Description

The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

Referring to fig. 1 and fig. 2, wherein fig. 1 is a schematic structural view of a water-cooling coil of a bridging device of a water-cooling coil according to the present invention, and fig. 2 is a schematic structural view of the bridging device. The water-cooling coil is used on the reactor, the water-cooling coil 10 is a hollow aluminum pipe, and the aluminum material has a magnetic isolation effect, so that the magnetic interference of an iron core magnetic field of the reactor on external parts can be avoided. Structurally, the water-cooling coil 10 may be in the shape of any one of a rectangular pipe and a circular pipe. It is contemplated that the shape of the water-cooled coil 10 is any reasonable geometric shape. The water-cooling coil 10 includes a coil body 11, a coil water inlet 12 located at one end of the coil body 11, and a coil water outlet 13 located at the other end of the coil body 11. The coil water inlet 12 and the coil water outlet 12 are general water inlets and outlets of the water-cooled coil 10, which enable the interior of the coil body 11 to be filled with cooling water. The coil body 11 is provided with a first connection port 111 and a second connection port 112. The first connection port 111 and the second connection port 112 may be provided at any position on the coil body 11.

The bridging device of the water-cooling coil comprises a bridge body 21, a bridge cut-off mechanism 22, a bridge water inlet pipe 23 and a bridge water outlet pipe 24, wherein the bridge cut-off mechanism 22 is arranged on the coil body 11 and is positioned between the first connecting port 111 and the second connecting port 112, the first connecting port 111 and the bridge body 21 are connected, and the second connecting port 112 and the bridge water outlet pipe 24 of the bridge body 21 are connected. The bridge frame body 21 is specifically a housing, a hollow pipe (not shown) is arranged inside the housing, a flow rate regulating valve (not shown) is arranged on the hollow pipe, the hollow pipe can be made of metal or plastic or a metal and plastic mixed structure, and the hollow pipe can be designed into a structure with reasonable length and any shape. The bridge body 21 adjusts the flow of the cooling water through the flow rate adjusting valve, and the flow rate adjusting valve is used as a water path damping in the coil body 11, and is a prior art and is not described herein again. The flow rate of the cooling water is controlled through the bridge frame body 21, so that the heating temperature of the reactor is controlled, the insulating material is in an allowable range, the performance of the reactor is improved, and the service life is prolonged. The shut-off mechanism 22 is located at any position between the first connection port 111 and the second connection port 112, and the shut-off mechanism 22 is a conventional technology, and is used on the coil body 11, so that cooling water does not flow through both sides of the shut-off mechanism 22, and therefore, the detailed description thereof is omitted. The distance from the shutoff mechanism 22 to the bridge water inlet pipe 23 and the distance from the shutoff mechanism 22 to the bridge water outlet pipe 24 are the same so that the water pressure at both ends of the shutoff mechanism 22 is the same. The bridge water inlet pipe 23 and the bridge water outlet pipe 24 are connected with the coil body 11 in a welding mode.

The coil water inlet 12 and the coil water outlet 13 are connected to form a circulation device (not shown) which is a conventional technology and collects cooling water from the coil water outlet 13 and re-enters the coil water inlet 12, so that energy is saved and cost is reduced.

In this embodiment, when the coil water inlet 12 is filled with cooling water, the cooling water enters the bridge body 21 through the first connection port 111 and the bridge water inlet pipe 23 under the intercepting action of the intercepting mechanism 22. After passing through the bridge body 21, the cooling water flows out from the coil water outlet 13 through the bridge water outlet pipe 24 and the second connection port 112. Through the structure of the bridging device of the water-cooling coil, the flow resistance of the reactor can be ensured, the heat dissipation performance of a reactor product is improved, and the service life of the reactor is prolonged.

Compared with the prior art, the utility model provides a pair of water-cooling coil's bridging device inserts this bridging device as the attenuator in water route through the optional position at water-cooling coil 10, but the flow resistance characteristic of effective control reactor. Cooling water is introduced into the water-cooling coil, and the cooling water flow rate of the bridge frame body 21 is adjusted to ensure that the heating temperature of the iron core of the reactor is within the allowable range of the insulating material, so that the heat dissipation performance and the service performance of the reactor are improved, and the service life is prolonged.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. The utility model provides a water-cooling coil's bridging device, water-cooling coil are used for the reactor on, water-cooling coil includes a coil body, and one is located the coil water inlet of the one end of coil body, and one is located the coil delivery port of the other end of coil body, its characterized in that: the coil body is provided with a first connecting port and a second connecting port, the bridging device of the water-cooling coil comprises a bridge body for controlling the flow speed of cooling water, one is arranged on the coil body and is located a closure mechanism between the first connecting port and the second connecting port, one is connected with the first connecting port and the bridge water inlet pipe of the bridge body, and one is connected with the second connecting port and the bridge water outlet pipe of the bridge body, the cooling water flows in from the coil water inlet, enters the bridge body through the first connecting port and the bridge water inlet pipe and flows out from the coil water outlet through the bridge water outlet pipe and the second connecting port.

2. The bridging device of the water-cooled coil as set forth in claim 1, wherein: the coil body is in any one of a rectangular tube or a circular tube.

3. The bridging device of the water-cooled coil as set forth in claim 1, wherein: the bridging body comprises a housing and a hollow pipe which is arranged in the housing and is connected with the bridge water inlet pipe and the bridge water outlet pipe.

4. The bridging device of the water-cooled coil as set forth in claim 1, wherein: the coil body is welded with the bridge water inlet pipe and the bridge water outlet pipe.

5. The bridging device of the water-cooled coil as set forth in claim 1, wherein: the distances from the interception mechanism to the bridge water inlet pipe and the distances from the interception mechanism to the bridge water outlet pipe are the same.

6. The bridging device of the water-cooled coil as set forth in claim 1, wherein: and the coil water inlet and the coil water outlet are connected and provided with a circulating device.