System for increasing heat dissipation outer air duct of air-cooled converter

Abstract

The utility model discloses an external air duct system for increasing heat dissipation of an air-cooled converter, which comprises an external air duct heat dissipation system, the external air duct heat dissipation system comprises an air collecting cover assembly, an air duct assembly and an external heat dissipation fan assembly, the upper part of the external heat dissipation fan assembly is connected with one end of the air duct assembly, and the other end of the air duct assembly is connected with the air collecting cover assembly. The external heat dissipation fan assembly is mounted on the outer side of the cabinet body of the wind power converter; the wind collecting cover assembly is used for collecting heat flow discharged by a heat dissipation fan of a power unit module of the wind power converter, the air duct assembly is used for conveying the heat flow, and the external heat dissipation fan assembly is used for heat exchange. According to the utility model, the heat dissipation structure is arranged outside the converter cabinet body, the compatibility is strong, the internal space of the tower drum is reasonably utilized, the manufacture and installation are convenient, the layout is reasonable, and the problem of poor heat dissipation capability of the high-power air-cooled converter is effectively solved.

Description

[Technical field]

[0001] The utility model relates to the technical field of radiators, in particular to the technical field of adding an external air duct system for heat dissipation of an air-cooled converter. [Background technology]

[0002] As a link between wind turbines and power grids, wind power converters can convert the electric energy generated by wind turbines to meet the requirements of power transmission and output it to the power grid. Converters are usually composed of functional components such as circuit breakers, contactors, rectifier modules, inverter modules, and filter modules. In traditional structures, the internal layout is compact and the air cooling effect is poor. Now that the power is getting bigger and bigger, it is very difficult to dissipate heat in the power unit module. Therefore, a structure is needed to increase the heat dissipation capacity without affecting the overall layout of the converter. [Contents of the utility model]

[0003] The purpose of the utility model is to solve the problems in the prior art and propose an external air duct system for adding heat dissipation to an air-cooled converter. The heat dissipation of the air-cooled converter is achieved by installing a heat dissipation structure outside the converter cabinet. The utility model has strong compatibility, reasonable use of the internal space of the tower, compact structure and high space utilization.

[0004] To achieve the above-mentioned purpose, the utility model proposes an external air duct system for adding heat dissipation of an air-cooled converter, including an external air duct heat dissipation system, the external air duct heat dissipation system including an air collecting cover assembly, an air duct assembly and an external heat dissipation fan assembly, one end of the air duct assembly is connected to the top of the external heat dissipation fan assembly, and the other end of the air duct assembly is connected to the air collecting cover assembly, and the external heat dissipation fan assembly is installed on the outside of the cabinet of the wind power converter;

[0005] The wind collecting hood assembly is used to collect the heat flow discharged by the heat dissipation fan of the power unit module of the wind power converter. The wind collecting hood assembly includes a wind collecting hood on the back of the converter, a wind collecting hood maintenance plate and a wind collecting hood at the bottom of the platform. The wind collecting hood on the back of the converter is larger at the top and smaller at the bottom. A maintenance window is provided on the side of the wind collecting hood on the back of the converter and a wind collecting hood maintenance plate is installed at the maintenance window. A wind collecting hood at the bottom of the platform is fixed below the wind collecting hood on the back of the converter. The wind collecting hood on the back of the converter is installed on the outside of the cabinet of the wind power converter.

[0006] The air duct assembly is used to transport heat flow, and the air duct assembly includes an air duct pipeline and a pipeline mounting bracket. The two ends of the air duct pipeline are respectively connected to the air collecting cover assembly and the external heat dissipation fan assembly, and the air duct pipeline is fixed by the pipeline mounting bracket;

[0007] The external heat dissipation fan assembly is used for heat exchange. The external heat dissipation fan assembly includes a fan protective cover, an axial flow fan, and a fan mounting base. The fan mounting base is disposed on the ground. An axial flow fan is fixed on the upper part of the fan mounting base, a fan protective cover is fixed above the axial flow fan, and the output end of the axial flow fan is connected to an air duct pipeline.

[0008] Preferably, the air collecting hood assembly is fixed to the workbench surface where the air-cooled converter is installed through a bolt assembly, and the air duct pipeline is hoisted under the workbench surface through a pipeline mounting bracket.

[0009] Preferably, the upper and lower parts of the air collecting hood on the back of the converter are square hollow shells, the middle part is an inverted trapezoidal hollow shell, and the air collecting hood at the bottom of the platform is a square hollow shell. The bottom of the air collecting hood on the back of the converter is fixed to the top of the air collecting hood at the bottom of the platform as a whole through a bolt assembly. There are holes on the rear side of the air collecting hood at the bottom of the platform, and the holes are connected to the air duct pipeline.

[0010] Preferably, a maintenance window is opened on the front side of the air collecting hood on the back of the converter. The maintenance window is a square through hole, and a collecting hood maintenance plate is fixed at the maintenance window of the air collecting hood on the back of the converter through screws.

[0011] Preferably, the pipeline mounting bracket is a U-shaped frame with an upward opening. The air duct pipeline is arranged in the U-shaped groove of the pipeline mounting bracket, and the air duct pipeline is a telescopic air duct.

[0012] Preferably, the fan protective cover is composed of a partition board with a middle mesh metal net and an outer peripheral metal strip. A Z-shaped connecting piece is arranged on the upper part of the fan protective cover, and the upper part of the fan protective cover is fixed through the connecting piece.

[0013] The beneficial effects of the present utility model: The heat dissipation structure of the present utility model is installed outside the converter cabinet, which has strong compatibility, reasonably utilizes the internal space of the tower barrel, is convenient for manufacturing and installation, has a reasonable layout, and effectively solves the problem of poor heat dissipation capacity of high-power air-cooled converters.

[0014] The features and advantages of the present utility model will be described in detail through embodiments in conjunction with the drawings.

Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the installation form of an external air duct system for increasing the heat dissipation of an air-cooled converter of the present utility model;

[0016] Figure 2 It is a schematic diagram of the specific structure of an external air duct system for increasing the heat dissipation of an air-cooled converter of the present utility model Figure 1 ;

[0017] Figure 3 It is a schematic diagram of the specific structure of an external air duct system for increasing the heat dissipation of an air-cooled converter of the present utility model Figure 2.

[0018] In the figure: 1-external duct cooling system, 01-air collecting cover assembly, 02-air duct assembly, 03-external cooling fan assembly, 111-inverter back air collecting cover, 112-air collecting cover maintenance plate, 113-platform bottom air collecting cover, 114-air duct pipeline, 115-pipe mounting bracket, 116-fan protective cover, 117-axial flow fan, 118-fan mounting base. [Specific implementation method]

[0019] See also Figure 1 , Figure 2 , Figure 3 The utility model includes an external duct heat dissipation system 1, which includes an air collecting cover component 01, an air duct component 02 and an external heat dissipation fan component 03. The upper part of the external heat dissipation fan component 03 is connected to one end of the air duct component 02, and the other end of the air duct component 02 is connected to the air collecting cover component 01. The external heat dissipation fan component 03 is installed on the outside of the cabinet of the wind power converter;

[0020] The wind collecting hood assembly 01 is used to collect the heat flow discharged by the cooling fan of the power unit module of the wind power converter. The wind collecting hood assembly 01 includes a wind collecting hood 111 on the back of the converter, a wind collecting hood maintenance plate 112 and a wind collecting hood 113 on the bottom of the platform. The wind collecting hood 111 on the back of the converter is larger at the top and smaller at the bottom. A maintenance window is provided on the side of the wind collecting hood 111 on the back of the converter and a wind collecting hood maintenance plate 112 is installed at the maintenance window. A wind collecting hood 113 on the bottom of the platform is fixed below the wind collecting hood 111 on the back of the converter. The wind collecting hood 111 on the back of the converter is installed on the outside of the cabinet of the wind power converter.

[0021] The air duct assembly 02 is used to transport heat flow. The air duct assembly 02 includes an air duct pipeline 114 and a pipeline mounting bracket 115. The two ends of the air duct pipeline 114 are respectively connected to the air collecting cover assembly 01 and the external heat dissipation fan assembly 03. The air duct pipeline 114 is fixed by the pipeline mounting bracket 115.

[0022] The external heat dissipation fan assembly 03 is used for heat exchange, and the external heat dissipation fan assembly 03 includes a fan protective cover 116, an axial flow fan 117 and a fan mounting base 118. The fan mounting base 118 is placed on the ground, and the axial flow fan 117 is fixed on the upper part of the fan mounting base 118. The fan protective cover 116 is fixed above the axial flow fan 117, and the output end of the axial flow fan 117 is connected to the air duct pipeline 114.

[0023] Working process of this utility model:

[0024] The utility model is explained in conjunction with the accompanying drawings during the working process of an external air duct system for increasing heat dissipation of an air-cooled converter.

[0025] As shown in the figure, the present invention is an external duct heat dissipation system 1 installed outside the wind power converter cabinet. The whole is divided into three parts according to function and installation position, from top to bottom and from right to left: the first part 01, the second part 02, and the third part 03. The first part is responsible for collecting the heat flow discharged by the heat dissipation fan of the power unit module of the wind power converter, and is composed of the wind collecting cover 111 on the back of the converter, the wind collecting cover maintenance plate 112, and the wind collecting cover 113 at the bottom of the platform; the second part is responsible for conveying the heat flow, and is composed of the duct pipeline 114 and the pipeline installation bracket 115; the third part is responsible for the heat exchange between the inside of the heat dissipation system and the outside of the tower, and is composed of the fan protection cover 116, the axial flow fan 117, and the fan installation base 118.

[0026] The first part 01 is called the air collecting cover assembly; the second part 02 is called the air duct assembly; and the third part is called the external heat dissipation fan assembly.

[0027] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. An external air duct system for heat dissipation of an air-cooled converter, characterized in that: It includes an external air duct cooling system (1). The external air duct cooling system (1) includes an air collecting hood assembly (01), an air duct assembly (02), and an external cooling fan assembly (03). One end of the air duct assembly (02) is connected above the external cooling fan assembly (03), and the other end of the air duct assembly (02) is connected to the air collecting hood assembly (01). The external cooling fan assembly (03) is installed on the outside of the cabinet of the wind power converter. The air collecting hood assembly (01) is used to collect the heat flow discharged by the cooling fans of the power unit modules of the wind power converter. The air collecting hood assembly (01) includes a converter back air collecting hood (111), an air collecting hood maintenance plate (112), and a platform bottom air collecting hood (113). The converter back air collecting hood (111) is larger at the top and smaller at the bottom. There is a maintenance window on the side of the converter back air collecting hood (111), and an air collecting hood maintenance plate (112) is installed at the maintenance window. The platform bottom air collecting hood (113) is fixed below the converter back air collecting hood (111). The converter back air collecting hood (111) is installed on the outside of the cabinet of the wind power converter. The air duct assembly (02) is used to convey the heat flow. The air duct assembly (02) includes an air duct pipeline (114) and a pipeline mounting bracket (115). Both ends of the air duct pipeline (114) are respectively connected to the air collecting hood assembly (01) and the external cooling fan assembly (03). The air duct pipeline (114) is fixed by the pipeline mounting bracket (115). The external cooling fan assembly (03) is used for heat exchange. The external cooling fan assembly (03) includes a fan protective cover (116), an axial flow fan (117), and a fan mounting base (118). The fan mounting base (118) is placed on the ground. The axial flow fan (117) is fixed on the upper part of the fan mounting base (118). The fan protective cover (116) is fixed above the axial flow fan (117). The output end of the axial flow fan (117) is connected to the air duct pipeline (114).

2. The external air duct system for adding heat dissipation to an air-cooled converter according to claim 1, characterized in that: The air collecting hood assembly (01) is fixed to the workbench for installing the air-cooled converter through bolt assemblies. The air duct pipeline (114) is hoisted under the workbench through the pipeline mounting bracket (115).

3. The external air duct system for adding heat dissipation to an air-cooled converter according to claim 1, characterized in that: The upper and lower parts of the converter back air collecting hood (111) are square hollow shells, and the middle part is an inverted trapezoidal hollow shell. The platform bottom air collecting hood (113) is a square hollow shell. The bottom of the converter back air collecting hood (111) and the top of the platform bottom air collecting hood (113) are fixed together through bolt assemblies. There are holes on the rear side of the platform bottom air collecting hood (113), and the holes are connected to the air duct pipeline (114).

4. The external air duct system for increasing heat dissipation of an air-cooled converter according to claim 1, characterized in that: There is a maintenance window on the front side of the converter back air collecting hood (111). The maintenance window is a square through hole. The air collecting hood maintenance plate (112) is fixed at the maintenance window of the converter back air collecting hood (111) through screws.

5. The external air duct system for increasing heat dissipation of an air-cooled converter according to claim 1, characterized in that: The pipeline mounting bracket (115) is a U-shaped frame with an upward opening. The air duct pipeline (114) is placed in the U-shaped slot of the pipeline mounting bracket (115). The air duct pipeline (114) is a telescopic air duct.

6. The external air duct system for increasing heat dissipation of an air-cooled converter according to claim 1, characterized in that: The fan protection cover (116) is composed of a central mesh metal net and a peripheral metal strip partition. A Z-shaped connecting piece is provided on the upper part of the fan protection cover (116), and the upper part of the fan protection cover (116) is fixed by the connecting piece.

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