CN203312993U - Novel heat-exchange apparatus for wind power generation device - Google Patents

Abstract

The utility model provides a new type of heat exchange device for wind power generation equipment, which includes a heat exchange core for heat dissipation, the heat exchange core is fixed in the center of the outer side of the top wall of the nacelle, and is provided with an inner circulation air duct and an outer circulation air duct ; The internal circulation air duct is provided with an internal circulation fan assembly; the external circulation air duct does not contain a fan assembly, and dissipates heat through natural wind, and the direction of the air duct is perpendicular to the circumferential surface of the wind turbine blade rotation; the internal circulation air The two ends of the duct are connected by a closed pipeline, and the pipeline is connected to the generator in the cabin through the cabin, and the air inlet and outlet of the internal circulation air duct are respectively used as the air inlet and outlet of the internal circulation. Air outlet; the two ends of the outer circulation air duct are the outer circulation air inlet and the outer circulation air outlet respectively, and the heat in the heat exchange core is taken away by natural wind. The utility model realizes internal and external circulation cross heat exchange, utilizes natural wind, completely omits the external circulation fan assembly, and greatly improves heat dissipation efficiency.

Description

A new heat exchange device for wind power generation equipment

technical field

The utility model relates to the technical field of wind power generation equipment, in particular to a novel heat exchange device for wind power generation equipment.

Background technique

In recent decades, the problem of environmental pollution has become increasingly serious around the world, forcing people to actively study clean energy that can replace traditional energy, and wind power is an important part of it. However, wind power generation technology is not yet mature enough, and the stability and lifespan of wind power generation equipment during use are difficult problems in the industry, which directly affects the popularization and application of wind power generation technology. Among them, the heat dissipation problem of wind power generation equipment in application is an important factor affecting its service life and stability. For example, generators, gearboxes, frequency converters and other equipment in wind power generation If it is released in time, it will cause the local part temperature to be too high, which will eventually lead to failure.

Utility model content

In view of this, it is necessary to provide a heat dissipation device with higher heat dissipation efficiency applied to wind power generation equipment for the problems described in the background art.

The purpose of this utility model is achieved by the following technical solutions:

A new type of heat exchange device for wind power generation equipment, comprising a heat exchange core for heat dissipation, the heat exchange core is fixed in the center of the outer side of the top wall of the nacelle, and is provided with an inner circulation air duct and an outer circulation air duct; The circulating air duct is provided with an internal circulating fan assembly; the external circulating air duct dissipates heat through natural wind, and the direction of the external circulating air duct is perpendicular to the circumferential surface of the wind blade rotation of the wind power generation equipment; the air inlet of the internal circulating air duct and The air outlet is connected through a closed pipeline, and the pipeline passes through the cabin and is connected to the generator in the cabin, and the air inlet and the air outlet of the internal circulation air duct are respectively used as the internal circulation air inlet and the internal circulation air outlet The two ends of the outer circulation air duct are the outer circulation air inlet and the outer circulation air outlet respectively, and the heat in the heat exchange core is taken away by natural wind.

The heat exchange core includes an outer frame support and cooling fins. The internal circulation fan assembly is placed in the fan support and placed inside the cabin. It consists of a housing and one or more motors. There are wind leaves.

The casing of the internal circulation fan assembly is provided with a plurality of cooling holes.

The generator is connected to the internal circulation fan assembly, its air inlet is adjacent to the heating part of the generator, and its air outlet is connected to the internal circulation air inlet through the ventilation channel.

The top of the heat exchange core is provided with a rain shield.

The flashing is a metal flashing.

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

The air exchange channel realizes internal circulation for ventilation and heat dissipation, and natural wind enters from the air inlet of the outer circulation, and then blows out from the air outlet of the outer circulation, taking away the heat in the heat exchange core, thereby realizing cross-dissipation of internal and external circulation, improving cooling efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the principle of circulating air flow outside the embodiment of the present invention;

Fig. 2 is a schematic diagram of the principle of circulating airflow in the embodiment of the present invention.

Detailed ways

As shown in Figures 1 and 2, the new heat exchange device of the wind power generation equipment of the present embodiment includes a heat exchange core 2 for heat dissipation, and the heat exchange core 2 is fixed on the center outside the top wall of the nacelle 1. The heat exchange core 2 includes an outer frame support and cooling fins, the heat exchange core 2 is provided with an inner circulation air duct and an outer circulation air duct, and the inner circulation air duct is provided with an inner circulation fan assembly 5; the outer circulation air duct Does not contain fan components, and dissipates heat through natural wind. The internal circulation fan assembly 5 is composed of a casing and one or more motors, and fan blades are arranged on the rotating shafts of the motors.

The engine room 1 is provided with a generator 4 , and the inner circulation air duct includes a closed pipeline 3 , and the pipeline 3 is connected to the generator 4 through the engine room 1 . The generator 4 is connected to the internal circulation fan assembly 5, the air inlet of the internal circulation fan assembly 5 is connected to the position where the heat dissipation of the generator 4 is concentrated, and its air outlet is connected to the heat exchange core through the pipeline 3 2, the air inlet and outlet of the inner circulation air passage of the heat exchange core 2 are respectively used as the inner circulation air inlet and the inner circulation air outlet, and the direction indicated by the arrow in Figure 2 is the flow of the inner circulation gas direction; the two ends of the outer circulation air duct of the heat exchange core 2 are the outer circulation air inlet and the outer circulation air outlet respectively, and the heat in the heat exchange core is taken away by natural wind, and the direction indicated by the arrow in Fig. 1 is is the direction of natural wind flow.

The casing of the internal circulation fan assembly 5 may be provided with a plurality of heat dissipation through holes.

The top of the heat exchange core 2 is provided with a metal rain shield.

Claims (5)

1. A novel heat exchange device for wind power generation equipment, characterized in that: it includes a heat exchange core for heat dissipation, the heat exchange core is fixed in the center of the outer side of the roof wall of the nacelle, and it is provided with an inner circulation air duct and an outer circulation Air duct; the internal circulation air duct is provided with an internal circulation fan assembly; the outer circulation air duct dissipates heat through natural wind, and the direction of the outer circulation air duct is perpendicular to the circumferential surface of the wind blade rotation of the wind power generation equipment; the inner circulation air duct The air inlet and air outlet of the duct are connected through a closed pipeline, and the pipeline passes through the cabin and is connected to the generator in the cabin. The air outlet and the internal circulation air outlet; the two ends of the outer circulation air duct are respectively the outer circulation air inlet and the outer circulation air outlet, and the heat in the heat exchange core is taken away by natural wind. 2. The new heat exchange device for wind power generation equipment according to claim 1, characterized in that: the heat exchange core includes an outer frame support and cooling fins, and the internal circulation fan assembly is placed in the fan support and juxtaposed Inside the nacelle, it consists of a casing and one or more electric motors. Fan blades are provided on the rotating shafts of the electric motors, and a plurality of cooling holes are provided on the casing of the internal circulation fan assembly. 3. The new heat exchange device of wind power generation equipment according to claim 2, characterized in that: the generator is connected to the internal circulation fan assembly, and the air inlet of the internal circulation fan assembly is connected to the generator The heating part is adjacent, and its air outlet is connected with the internal circulation air inlet through the pipe. 4. The novel heat exchange device for wind power generation equipment according to any one of claims 1 to 3, characterized in that: the top of the heat exchange core is provided with a rain shield. 5. The novel heat exchange device for wind power generation equipment according to claim 4, characterized in that: the rain shield is a metal rain shield.

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