CN219205093U

CN219205093U - Heat abstractor for direct current transmission thyristor converter valve subassembly

Info

Publication number: CN219205093U
Application number: CN202223534934.2U
Authority: CN
Inventors: 张志平
Original assignee: Liyang Simaike Electric Co ltd
Current assignee: Liyang Simaike Electric Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-16
Anticipated expiration: 2032-12-29

Abstract

The application discloses a heat abstractor for a direct current transmission thyristor converter valve assembly, which relates to the technical field of thyristor converter valve assembly heat dissipation, and comprises an equipment shell and a heat dissipation box, wherein an inner containing cavity of the equipment shell is communicated with an inner containing cavity of the heat dissipation box through a plurality of through holes, a converter valve assembly is installed on the inner bottom surface of the equipment shell, a semiconductor refrigerating sheet is installed on the opposite inner side wall of the heat dissipation box, a cold guide block is fixedly connected to the upper cold end surface of the semiconductor refrigerating sheet, a heat dissipation fin is installed on the lower hot end surface of the semiconductor refrigerating sheet, an air inlet pipe is communicated with the inner containing cavity of the heat dissipation box close to the cold guide block, a one-way valve is installed on the outer surface of the air inlet pipe, a filter screen III is installed on the inner wall of the far-dispersed heat box of the air inlet pipe, an air exhaust hole is formed in the upper surface of the equipment shell, a filter screen IV is installed on the upper end of the inner wall of the air exhaust hole, and an air exhaust fan is installed in the middle of the inner wall of the air exhaust hole; through the cooperation of above structure thereby improve the radiating effect to the converter valve subassembly.

Description

Heat abstractor for direct current transmission thyristor converter valve subassembly

Technical Field

The utility model belongs to the technical field of heat dissipation of thyristor converter valve assemblies, and particularly relates to a heat dissipation device for a direct-current transmission thyristor converter valve assembly.

Background

The direct current converter valve is core equipment of direct current transmission, and the converter valve is usually composed of a plurality of components, and the converter valve component comprises a series of structures such as a thyristor, a thyristor control unit, a damping resistor, a water-cooling radiator, a damping capacitor and the like, and is complex in structure and various in parts, and the components can release more heat in the operation process, and if the heat is not evacuated in time, the components can be damaged.

Patent CN105161471B discloses a radiator of a thyristor assembly of a converter valve, wherein first water inlets of two adjacent first radiators are communicated through a pipeline, and the pipeline passes through a second upper reserved area of a second radiator positioned between the two adjacent first radiators; or the first water downcomers of the two adjacent first radiators are communicated through a pipeline, and the pipeline passes through a second lower reserved area of the second radiator positioned between the two adjacent first radiators; the second water inlets of the two adjacent second radiators are communicated through a pipeline, and the pipeline penetrates through a first upper reserved area of the first radiator positioned between the two adjacent second radiators; or the second water outlets of the two adjacent second radiators are communicated through a pipeline, and the pipeline penetrates through the first lower reserved area of the first radiator between the two adjacent second radiators. The utility model reduces the joint of the cooling system, reduces the leakage risk, improves the running reliability of the converter valve, reduces the overhaul difficulty and shortens the overhaul time.

The traditional converter valve assembly mostly dissipates heat to equipment through a water-cooling radiator, the heat dissipation structure is too single, and the heat discharged into the air by the thyristor converter valve assembly is difficult to cool and disperse, so that the heat dissipation effect is poor.

Disclosure of Invention

The utility model aims at: in order to improve the radiating effect on the converter valve assembly, the application provides a radiating device for the direct-current transmission thyristor converter valve assembly.

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

the utility model provides a heat abstractor for direct current transmission thyristor converter valve subassembly, includes the equipment casing, the lower fixed surface of equipment casing is connected with the radiating box, the inside appearance chamber of equipment casing pass through a plurality of through-holes with the inside appearance chamber of radiating box is linked together, the converter valve subassembly is installed to the equipment casing inner bottom surface, the semiconductor cooling piece is installed to the relative inside wall of radiating box, the cold guide piece is fixedly connected with to the top cold junction face of semiconductor cooling piece, radiating fin is installed to the below hot junction face of semiconductor cooling piece, the radiating box is close to the inside appearance chamber intercommunication of cold guide piece has the intake pipe, the surface mounting check valve of intake pipe is kept away from the one end inner wall of radiating box installs the filter screen three, the exhaust hole has been seted up to the upper surface of equipment casing, the filter screen four is installed to the inner wall upper end of exhaust hole, the inner wall mid-mounting of exhaust hole has the fan of exhaust hole.

Through adopting above-mentioned technical scheme, when the work element in the inside converter valve subassembly of equipment casing releases more heat, can control and start the semiconductor refrigeration piece and make the cold piece of leading carry out cooling down rapidly to the air of heat dissipation case upper end inner wall, the air after the cooling can enter into the equipment casing inside through the through-hole, so that the inside higher air of temperature of equipment casing cools down, simultaneously can start the fan of bleeding to the inside air of equipment casing, so that the higher air of temperature can follow the exhaust hole and discharge to outside, open the check valve and make the outside air can enter into the inside appearance chamber that is close to the cold piece of leading from the intake pipe and carry out continuous cooling down, so that continuously carry the cold air current to the inside transportation of equipment casing, thereby improve the radiating effect to the converter valve subassembly through the cooperation of above structure.

Optionally, the number of the air inlet pipe, the one-way valve and the filter screen III is two, and the two air inlet pipes, the one-way valve and the filter screen III are symmetrically arranged on two sides of the heat dissipation box.

Through adopting above-mentioned technical scheme, the cooperation of two intake pipes, check valve and filter screen three can accelerate outside air current and enter into the cooling box inside and cool down the speed.

Optionally, a first filter screen is installed at the upper end of the inner wall of the through hole.

Through adopting above-mentioned technical scheme, when filter screen one can prevent to overhaul the inside working element of equipment casing, have the part to fall into the cooling box inside from the through-hole.

Optionally, a second filter screen is installed at the opening of the lower surface of the heat dissipation box, and the specifications of the first filter screen, the second filter screen, the third filter screen and the fourth filter screen are 300 meshes.

By adopting the technical scheme, the dust can be intercepted by the first filter screen, the second filter screen, the third filter screen and the fourth filter screen of 300 meshes.

Optionally, the heat dissipation case is close to the interior appearance chamber intercommunication of radiating fin has the heat dissipation trachea, is equipped with radiator fan in the heat dissipation trachea, and the tracheal entry of heat dissipation is equipped with the filter screen five.

Advantageous effects

Compared with the prior art, the utility model has the advantages that:

according to the utility model, when more heat is released from the working element in the converter valve assembly in the equipment shell, the semiconductor refrigerating sheet can be used for enabling the cold guide block to rapidly cool the air on the inner wall of the upper end of the heat dissipation box, the cooled air can enter the equipment shell through the plurality of through holes so as to cool the air with higher temperature in the equipment shell, meanwhile, the air suction fan can be started to pump the air in the equipment shell so that the air with higher temperature can be discharged to the outside from the exhaust hole, then the one-way valve is opened so that the outside air can enter the inner cavity of the heat dissipation box close to the cold guide block from the air inlet pipe so as to continuously cool the interior of the equipment shell, and the heat dissipation effect of the converter valve assembly is improved through the cooperation of the structures.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

FIG. 2 is a perspective view of the interior of the device housing of the present utility model;

fig. 3 is an enlarged view of a of fig. 1 in the present utility model.

The marks in the figure: 1-equipment shell, 2-heat dissipation box, 3-heat dissipation air pipe, 4-radiator fan, 5-converter valve subassembly, 6-through-hole, 7-filter screen one, 8-semiconductor refrigeration piece, 9-radiating fin, 10-cold guide piece, 11-filter screen two, 12-intake pipe, 13-check valve, 14-filter screen three, 15-exhaust hole, 16-bleed fan, 17-filter screen four.

Detailed Description

The utility model will be further described with reference to specific embodiments in the drawings.

Referring to fig. 1 and 2, a heat dissipating device for a dc transmission thyristor converter valve assembly includes a device housing 1, a heat dissipating box 2 is fixedly connected to a lower surface of the device housing 1, an inner cavity of the device housing 1 is communicated with the inner cavity of the heat dissipating box 2 through a plurality of through holes 6, a first filter screen 7 is mounted at an upper end of an inner wall of the through holes 6, a specification of the first filter screen 7 is 300 meshes, and when the first filter screen 7 with 300 meshes is used for preventing an inner working element of the device housing 1 from being overhauled, parts fall into the heat dissipating box 2 from the through holes 6; a converter valve assembly 5 is mounted on the inner bottom surface of the equipment housing 1.

Referring to fig. 1-3, semiconductor refrigerating sheets 8 are mounted on opposite inner side walls of a heat dissipation box 2, a cold guide block 10 is fixedly connected to a cold end surface above the semiconductor refrigerating sheets 8, and the semiconductor refrigerating sheets 8 are controlled to be started to enable the cold guide block 10 to rapidly cool air on the inner wall of the upper end of the heat dissipation box 2, and cooled air can enter the equipment shell 1 through a through hole 6 so as to cool air with higher temperature in the equipment shell 1; the upper surface of the equipment shell 1 is provided with an exhaust hole 15, the upper end of the inner wall of the exhaust hole 15 is provided with a filter screen IV 17, the specification of the filter screen IV 17 is 300 meshes, and the filter screen IV 17 can prevent dust in the outside air from entering the equipment shell 1; the air extraction fan 16 is arranged in the middle of the inner wall of the exhaust hole 15, and the air extraction fan 16 is started to extract air in the equipment shell 1, so that air with higher temperature can be discharged to the outside from the exhaust hole 15, and the heat dissipation effect of the converter valve assembly 5 is improved.

Referring to fig. 1-3, an inner cavity of the heat dissipation box 2 close to the cold guide block 10 is communicated with an air inlet pipe 12, a one-way valve 13 is arranged on the outer surface of the air inlet pipe 12, a filter screen III 14 is arranged on the inner wall of one end of the air inlet pipe 12 far away from the heat dissipation box 2, and external air can enter the inner cavity of the heat dissipation box 2 close to the cold guide block 10 from the air inlet pipe 12 to be continuously cooled by opening the one-way valve 13 so as to continuously convey cold air flow to the inside of the equipment shell 1; the specification of the third filter screen 14 is 300 meshes, and the third filter screen 14 with 300 meshes can prevent dust in the outside air from entering the heat dissipation box 2; the number of the air inlet pipe 12, the one-way valve 13 and the filter screen III 14 is two, and the two air inlet pipes 12, the one-way valve 13 and the filter screen III 14 are symmetrically arranged on two side surfaces of the heat dissipation box 2, so that the heat dissipation effect on the converter valve assembly 5 is improved through the cooperation of the structures.

Referring to fig. 1 to 3, a heat dissipation fin 9 is mounted on the lower hot end surface of the semiconductor refrigeration sheet 8, and the heat dissipation fin 9 can dissipate heat of the hot end surface of the semiconductor refrigeration sheet 8; a second filter screen 11 is arranged at the opening of the lower surface of the heat dissipation box 2, and the heat discharged by the heat dissipation fins 9 can be discharged from the opening of the lower end of the heat dissipation box 2; the specification of the second filter screen 11 is 300 meshes, and the second filter screen 11 with 300 meshes can prevent dust in the outside air from entering the inner cavity of the heat dissipation box 2 from the opening at the lower end of the heat dissipation box 2.

The inner cavity of the heat dissipation box 2, which is close to the heat dissipation fins 9, is communicated with a heat dissipation air pipe 3, a heat dissipation fan 4 is arranged in the heat dissipation air pipe 3, and a filter screen five 18 is arranged at the inlet of the heat dissipation air pipe 3. The heat generated at the hot end surface of the semiconductor cooling fin 8 is taken away by blowing air to the heat radiating fins 9 by the heat radiating fan 4.

The implementation principle of the embodiment of the heat dissipation device for the direct-current transmission thyristor converter valve assembly is as follows:

when the device is used for radiating heat, an external power supply is firstly connected, when the working element in the converter valve assembly 5 in the equipment shell 1 releases more heat, the semiconductor refrigerating sheet 8 can enable the cold guide block 10 to rapidly cool the air on the inner wall of the upper end of the heat radiating box 2, the cooled air can enter the equipment shell 1 through the plurality of through holes 6 so as to cool the air with higher temperature in the equipment shell 1, meanwhile, the air suction fan 16 can be started to pump the air with higher temperature in the equipment shell 1 so that the air with higher temperature can be discharged to the outside from the exhaust hole 15, and then the one-way valve 13 is opened to enable the external air to enter the inner cavity of the heat radiating box 2 from the air inlet pipe 12 to be continuously cooled so as to continuously convey cold air flow in the equipment shell 1, and the heat radiating effect of the converter valve assembly 5 is improved through the cooperation of the structure.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these do not affect the effect of the implementation of the present utility model and the utility of the patent.

Claims

1. The utility model provides a heat abstractor for direct current transmission thyristor converter valve subassembly, includes equipment housing (1), its characterized in that: the utility model discloses a device, including equipment housing (1), radiator box (2), radiator box (1), filter screen (15) are installed to the inside appearance chamber of equipment housing (1), radiator box (2)'s lower fixed surface is connected with radiator box (2), equipment housing (1) inside appearance chamber pass through a plurality of through-holes (6) with radiator box (2) inside appearance chamber is linked together, converter valve subassembly (5) are installed to bottom surface in equipment housing (1), semiconductor refrigeration piece (8) are installed to the relative inside wall of radiator box (2), the top cold junction face fixedly connected with of semiconductor refrigeration piece (8) leads cold piece (10), radiating fin (9) are installed to the below hot junction face of semiconductor refrigeration piece (8), radiator box (2) are close to the inside appearance chamber intercommunication of leading cold piece (10) has intake pipe (12), the surface mounting check valve (13) of intake pipe (12) is kept away from the one end inner wall of radiator box (2) is installed three (14), exhaust hole (15) have been seted up to the upper surface of equipment housing (1), four (17) are installed to the inner wall upper end of exhaust hole (15), air exhaust hole (16) are installed to the inner wall (16).

2. A heat sink for a dc transmission thyristor converter valve assembly according to claim 1, wherein: the number of the air inlet pipe (12), the one-way valve (13) and the three filter screens (14) is two, and the two air inlet pipes (12), the one-way valve (13) and the three filter screens (14) are symmetrically arranged on two side surfaces of the heat dissipation box (2).

3. A heat sink for a dc transmission thyristor converter valve assembly according to claim 2, wherein: the upper end of the inner wall of the through hole (6) is provided with a first filter screen (7).

4. A heat sink for a dc transmission thyristor converter valve assembly according to claim 3, wherein: the lower surface opening part of the radiating box (2) is provided with a second filter screen (11), and the specification of the first filter screen (7), the second filter screen (11), the third filter screen (14) and the fourth filter screen (17) is 300 meshes.

5. A heat sink for a dc transmission thyristor converter valve assembly according to claim 1, wherein: the heat dissipation box (2) is close to the interior holding chamber intercommunication of fin (9) has heat dissipation trachea (3), is equipped with radiator fan (4) in heat dissipation trachea (3), and the entry of heat dissipation trachea (3) is equipped with filter screen five (18).