CN219691675U - Wind power tower bottom platform cooling device and wind power tower - Google Patents

Abstract

The utility model provides a cooling device for a bottom platform of a wind power tower, wherein an electric device which is not contacted with a tower wall is arranged in an electric device cabin in the tower, the electric device is arranged on the bottom platform of the wind power unit tower, the wind power tower comprises a concrete foundation at a part below the ground, and the cooling device comprises: the energy absorption tube is arranged in the electric equipment cabin in the tower barrel; the concrete foundation is internally provided with a bottom space, water is arranged in the bottom space, and a part of radiating pipes are arranged below the water surface of the water; or/and part of radiating pipes which extend into the concrete foundation and are in direct contact with the concrete foundation; the energy absorption pipe is connected with the radiating pipe through a pipeline to form a loop, heat conduction liquid is arranged in the loop, and a driving motor for driving the heat conduction liquid to flow in the loop is arranged on the loop. The utility model can realize the scheme of lower running cost and security cost to solve the problem of heat dissipation of the platform at the bottom of the wind power tower.

Description

Wind power tower bottom platform cooling device and wind power tower

Technical field

This application relates to wind power generation technology and wind power inverter cooling technology, especially to the cooling device of the platform at the bottom of the wind turbine tower and the wind power tower.

Background technique

For the bottom platform of the wind power tower where electrical components such as frequency converters, auxiliary transformers, and main control cabinets are placed, the heat generated by these electrical components will accumulate on the bottom platform of the wind power tower. If the heat cannot be discharged in time, it will cause electrical damage. The life of components and the stability of operation will be affected. Therefore, it is necessary to dissipate heat from the bottom platform of the wind power tower. Currently, there are several ways to dissipate heat from the bottom platform of wind power towers:

Method 1: Use the method of installing axial flow fans on the side walls of the tower to solve the heat dissipation of the platform at the bottom of the tower. However, there are several inevitable problems with using traditional axial flow fans for ventilation and heat dissipation. First, the operation of electrical components needs to be dust-proof and sand-proof. The axial flow fan must be installed with a dust-proof net. The dust-proof net will affect the ventilation effect of the axial flow fan, and the dust-proof net needs to be cleaned regularly. Second, in certain environments such as the Gobi Desert, the ambient temperature outside the tower is relatively high. When high-temperature air enters the space at the bottom of the tower, the heat dissipation effect is greatly reduced. Third, the bottom of the tower is an important load-bearing component of the wind turbine. Installing the axial flow fan requires openings in the side wall of the tower, which affects the safety of the tower. The reinforcement structure around the opening of the axial flow fan will also increase the processing and manufacturing costs of the tower.

Method 2: Use an above-ground water-cooling heat exchange system to solve the heat dissipation of the platform at the bottom of the tower. Although this method can solve the problem of dust prevention and partially solve the problem of tower wall openings, it still cannot solve the problem of high ambient temperature in the wind field.

Method 3: Using an air conditioning and refrigeration system can effectively solve the problems related to ventilation and heat dissipation of axial flow fans, but the operating cost is expensive and equipment security costs need to be increased.

From the above, how to provide a solution with lower operating costs and security costs to solve the heat dissipation problem of the bottom platform of the wind power tower is a technical problem to be solved by the present invention.

Contents of the invention

In view of the above problems of the prior art, this application provides a cooling device for the bottom platform of a wind turbine tower and a wind power tower to solve the heat dissipation problem of the bottom platform of the wind power tower with lower operating costs and security costs.

In order to achieve the above purpose, the first aspect of this application provides a heat dissipation device for the bottom platform of a wind power tower. The electrical equipment cabin inside the tower is provided with electrical equipment that is not in contact with the tower wall. The electrical equipment is installed on the wind turbine generator. On the bottom platform of the tower, the wind power tower includes a concrete foundation in the part located below the ground. The heat dissipation device includes: an energy-absorbing tube arranged in the electrical equipment cabin inside the tower; there is a bottom space in the concrete foundation, and the There is water in the bottom space, and heat dissipation pipes are arranged below the water surface of the water; the energy-absorbing pipes and the heat dissipation pipes are connected through pipelines and form a loop, there is a heat transfer liquid in the loop, and a driving unit is provided on the loop. and a driving motor for the thermal fluid to flow in the circuit.

From the above, in this way, the energy-absorbing tube and the heat dissipation tube are connected through pipelines and form a loop, so that the heat in the electrical equipment cabin inside the tower is directed to the heat dissipation tube below the water surface in the bottom space, and the water further serves as The conductive medium conducts the heat emitted by the heat pipe to the concrete foundation, and then to the nearby soil through the concrete foundation. Compared with the solution in the background art, this method has lower operating costs and security costs. It does not require openings in the side wall of the tower, so it does not affect the safety of the tower. And because the overall dust-proof effect is good, it is suitable for high-temperature environments such as the Gobi Desert. The unit is suitable for areas with heavy sandstorms.

The second aspect of this application provides a heat dissipation device for the bottom platform of a wind power tower. The electrical equipment cabin inside the tower is provided with electrical equipment that is not in contact with the tower wall. The electrical equipment is installed on the bottom platform of the wind turbine tower. , the wind power tower includes a concrete foundation in the part located below the ground, and the heat dissipation device includes: an energy-absorbing tube arranged in an electrical equipment cabin inside the tower; an energy-absorbing tube extending into the concrete foundation and in direct contact with the concrete foundation. Heat dissipation tube; the energy-absorbing tube and the heat dissipation tube are connected through pipelines and form a loop. There is a heat transfer fluid in the loop. A driving motor is provided on the loop to drive the heat transfer fluid to flow in the loop.

From the above, in this way, the energy-absorbing tube and the heat dissipation tube are connected through pipelines and form a loop, and the heat in the electrical equipment cabin inside the tower is directed to the heat dissipation tube below the ground at the bottom. The heat emitted by the heat dissipation tube Directly transmitted to the concrete foundation, and then transmitted to the nearby soil through the concrete foundation. Compared with the solution in the background art, this method has lower operating costs and security costs. It does not require openings in the side wall of the tower, so it does not affect the safety of the tower. And because the overall dust-proof effect is good, it is suitable for high-temperature environments such as the Gobi Desert. The unit is suitable for areas with heavy sandstorms.

The third aspect of this application provides a heat dissipation device for the bottom platform of a wind power tower. The electrical equipment cabin inside the tower is provided with electrical equipment that is not in contact with the tower wall. The electrical equipment is installed on the bottom platform of the wind turbine tower. The wind power tower includes a concrete foundation in the part located below the ground. The heat dissipation device includes: an energy-absorbing tube arranged in an electrical equipment cabin inside the tower; there is a bottom space in the concrete foundation, and there is water in the bottom space. , some heat dissipation pipes are arranged below the water surface; some heat dissipation pipes extend into the concrete foundation and are in direct contact with the concrete foundation; the energy-absorbing pipes and the heat dissipation pipes are connected through pipelines and form a loop, There is a thermal transfer fluid in the loop, and a driving motor is provided on the loop to drive the thermal transfer fluid to flow in the loop.

From the above, this method has the effects of the heat dissipation device described in the first aspect and the second aspect at the same time.

As an optional method of the second aspect or the third aspect, the heat dissipation pipe also extends to the soil below the ground and is provided.

From the above, the heat dissipation pipe also extends to the soil below the ground and is installed, and the heat can also be directly conducted to the soil for heat dissipation.

As an optional method of the first aspect, the second aspect or the third aspect, the energy-absorbing tube is arranged close to the tower wall and not in contact with the tower wall.

From the above, since the energy-absorbing tube is close to the tower wall and does not contact the tower wall, it provides space for internal air flow and does not directly exchange heat with the tower wall.

As an optional method of the first aspect, the second aspect or the third aspect, the bottom of the electrical equipment and the bottom platform have a certain accommodation space, and the energy-absorbing tube is located in the accommodation space.

From the above, energy-absorbing tubes are installed in the above-mentioned accommodation space, and the overall space utilization rate is high.

As an optional method of the first aspect, the second aspect or the third aspect, the electrical equipment cabin includes a fan for directing heat in the electrical equipment cabin to the location of the energy-absorbing pipe.

From the above, the fan can direct the heat in the electrical equipment compartment to the energy-absorbing tube, thereby improving the working efficiency of the heat dissipation device.

As an optional method of the first aspect, the second aspect or the third aspect, the energy absorbing tube includes a spiral or serpentine arranged structure.

From the above, the structure increases the heat absorption and heat dissipation area and improves the working efficiency of the heat dissipation device.

As an optional method of the first aspect, the second aspect or the third aspect, the surface of the energy absorbing tube or the heat dissipating tube includes heat dissipating fins.

From the above, the structure increases the heat absorption and heat dissipation area and improves the working efficiency of the heat dissipation device.

A fourth aspect of this application provides a wind power tower, including the wind power tower bottom platform heat dissipation device described in any one of the first aspect, the second aspect, or the third aspect.

To sum up, this application realizes the heat dissipation and cooling effect in the bottom platform of the unit tower, without increasing the operating cost and security cost, without affecting the safety performance of the tower, and is suitable for units in high-temperature environments such as the Gobi Desert, and is suitable for windy and sandy areas. of wind turbines operating.

Description of the drawings

Figure 1 is a schematic structural diagram of a heat dissipation device at the bottom of a wind turbine tower provided by an embodiment of the present application.

It should be understood that in the above structural schematic diagram, the size and shape of each block diagram are for reference only and should not constitute an exclusive interpretation of the embodiments of the present invention. The relative positions and inclusion relationships between the block diagrams presented in the structural schematic diagram only schematically represent the structural relationships between the block diagrams, but do not limit the physical connection methods of the embodiments of the present invention.

Detailed ways

The technical solution provided by this application will be further described below with reference to the accompanying drawings and examples. It should be understood that the device structure and business scenarios provided in the embodiments of this application are mainly to illustrate possible implementations of the technical solution of this application and should not be interpreted as the sole limitation of the technical solution of this application. Persons of ordinary skill in the art will know that with the evolution of device structures and the emergence of new business scenarios, the technical solutions provided in this application are also applicable to similar technical problems.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. If there is any inconsistency, the meaning explained in this manual or the meaning derived from the content recorded in this manual shall prevail. In addition, the terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

The heat dissipation device at the bottom platform of the wind turbine tower provided by this application can be used to dissipate heat from the bottom platform of the wind turbine tower. The device includes a heat absorption part and a heat dissipation part. The heat absorption part is used to absorb the heat from the electrical components of the wind turbine tower bottom platform. The heat released is transferred to the heat dissipation part through the pipeline. The heat dissipation part is located under the bottom platform of the wind turbine tower and is set below the ground to conduct heat to the ground. This solution has low operating costs and security costs. This application also provides a wind power tower, including the above-mentioned platform heat dissipation device at the bottom of the wind turbine tower.

The application plan will be introduced in detail below with reference to the accompanying drawings.

Figure 1 shows a schematic structural diagram of a heat dissipation device at the bottom of a wind turbine tower provided by an embodiment of the present application. This embodiment will be described in detail below.

Among them, Figure 1 shows the tower bottom platform part of the wind turbine, including an electrical equipment cabin located inside the tower. There are several electrical equipment 12 installed without contact with the tower wall 11. The several electrical equipment 12 are installed on On the platform 13 at the bottom of the wind turbine tower. In some embodiments, the electrical equipment 12 includes a bracket or a casing, and there are equipment components inside the bracket or the casing. There are legs below the bracket or below the casing, so that the bottom of the bracket or casing and the bottom platform 13 have certain accommodation. space.

Among them, a number of energy-absorbing tubes 21 are provided in the electrical equipment cabin inside the tower. In some embodiments, part of the energy-absorbing tubes 21 may be disposed close to the tower wall 11 and not in contact with the tower wall 11 . In some embodiments, part of the energy-absorbing tubes 21 may be located in the accommodation space formed by the bottom of the bracket or housing and the bottom platform 13 . The energy-absorbing tubes 21 may be arranged in a spiral or serpentine shape.

Among them, the bottom of the tower of the wind turbine unit will partially extend below the ground 16 and be set in the concrete foundation 15 below the ground 16 , and the wind turbine tower of the wind turbine unit has a bottom space 14 in the part below the ground 16 , and the bottom The space is located within a concrete foundation.

In some embodiments, a basic inner tube heat dissipation method can be adopted. In this method, the heat dissipation pipe 22 is located in the bottom space 14 , and there is water in the bottom space 14 , and the water surface 23 is higher than the heat dissipation pipe 22 . In this way, water serves as a conductive medium to conduct the heat in the heat dissipation pipe 22 to the concrete foundation 15, and then to the nearby soil through the concrete foundation 15. The heat dissipation pipe 22 may be in the form of a coil.

In some embodiments, a buried pipe heat dissipation method may be used. In this method, the heat dissipation pipe 22 is pre-buried in the soil or the concrete foundation 15 when the concrete foundation 15 is poured. The heat dissipation pipe 22 is in direct contact with the soil or concrete foundation 15 for heat dissipation. The heat dissipation pipe 22 may be in the form of an insert pipe.

In some embodiments, a combination of the basic inner pipe heat dissipation method and the underground pipe heat dissipation method can be used.

Among them, the energy absorbing tube 21 and the heat dissipating tube 22 are made of materials with good thermal conductivity, such as aluminum materials and copper materials. The energy-absorbing tube 21 and the heat-dissipating tube 22 are connected through pipelines and form a loop. There is a thermal transfer liquid inside the pipeline, such as water or oil with a large specific heat capacity. The pipeline is also connected to a driving motor, such as a low-power slow-speed motor, for driving the thermal fluid to circulate in the loop formed by the energy-absorbing tube 21 and the heat-dissipating tube 22 .

In some embodiments, the surfaces of the energy-absorbing tubes 21 and the heat-dissipating tubes 22 may also have a number of heat-dissipating fins to increase the heat-absorbing and heat-dissipating area.

In some embodiments, the electrical equipment cabins inside the towers where several electrical equipments 12 are installed also have fans to guide the heat in the electrical equipment cabins to the location of the energy-absorbing tubes 21 .

In some embodiments, there may be multiple groups of circuits of energy absorbing tubes 21 and heat dissipating tubes 22 .

Among them, the words "first, second, third, etc." or similar terms such as module A, module B, module C, etc. in the description and claims are only used to distinguish similar objects and do not represent a specific ordering of the objects. It is understood that the specific order or sequence may be interchanged where permitted, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein.

In the above description, the labels indicating the steps involved, such as S110, S120..., etc., do not necessarily mean that this step will be executed. If permitted, the order of the preceding and following steps can be interchanged, or executed at the same time.

The term "comprising", used in the specification and claims, should not be construed as being limited to what is listed thereafter; it does not exclude other elements or steps. It should therefore be construed as specifying the presence of stated features, integers, steps or components mentioned, but not excluding the presence or addition of one or more other features, integers, steps or components and groups thereof. Therefore, the expression "apparatus comprising means A and B" should not be limited to a plant consisting only of components A and B.

Reference in this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places in this specification are not necessarily all referring to the same embodiment, but may. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments, as would be apparent to one of ordinary skill in the art from this disclosure.

Note that the above are only the preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments. Without departing from the concept of the present application, it can also include more other equivalent embodiments, all of which belong to the present application. Apply for protection scope.

Claims (10)

1. A cooling device for the bottom platform of a wind power tower, characterized in that the electrical equipment cabin inside the tower is provided with electrical equipment that is not in contact with the tower wall, and the electrical equipment is installed on the bottom platform of the wind turbine tower, The wind power tower includes a concrete foundation in the part located below the ground, and the heat dissipation device includes: Energy-absorbing tubes installed in the electrical equipment cabin inside the tower; There is a bottom space in the concrete foundation, there is water in the bottom space, and heat dissipation pipes are arranged below the water surface of the water; The energy-absorbing tube and the heat dissipation tube are connected through pipelines and form a loop. There is a thermally conductive fluid in the loop. A driving motor is provided on the loop to drive the thermally conductive fluid to flow in the loop. 2. A cooling device for the bottom platform of a wind power tower, characterized in that the electrical equipment cabin inside the tower is provided with electrical equipment that is not in contact with the tower wall, and the electrical equipment is installed on the bottom platform of the wind turbine tower, The wind power tower includes a concrete foundation in the part located below the ground, and the heat dissipation device includes: Energy-absorbing tubes installed in the electrical equipment cabin inside the tower; A heat dissipation pipe extending into the concrete foundation and in direct contact with the concrete foundation; The energy-absorbing tube and the heat dissipation tube are connected through pipelines and form a loop. There is a thermally conductive fluid in the loop. A driving motor is provided on the loop to drive the thermally conductive fluid to flow in the loop. 3. A cooling device for the bottom platform of a wind power tower, characterized in that the electrical equipment cabin inside the tower is provided with electrical equipment that is not in contact with the tower wall, and the electrical equipment is installed on the bottom platform of the wind turbine tower, The wind power tower includes a concrete foundation in the part located below the ground, and the heat dissipation device includes: Energy-absorbing tubes installed in the electrical equipment cabin inside the tower; There is a bottom space in the concrete foundation, there is water in the bottom space, and some heat dissipation pipes are arranged below the water surface of the water; Part of the heat dissipation pipe extending into the concrete foundation and in direct contact with the concrete foundation; The energy-absorbing tube and the heat dissipation tube are connected through pipelines and form a loop. There is a thermally conductive fluid in the loop. A driving motor is provided on the loop to drive the thermally conductive fluid to flow in the loop. 4. The device according to claim 2 or 3, characterized in that the heat dissipation pipe also extends to the soil below the ground and is installed. 5. The device according to any one of claims 1 to 3, characterized in that the energy-absorbing tube is arranged close to the tower wall and not in contact with the tower wall. 6. The device according to any one of claims 1 to 3, characterized in that the bottom of the electrical equipment and the bottom platform have a certain accommodation space, and the energy-absorbing tube is located in the accommodation space. 7. The device according to any one of claims 1 to 3, characterized in that the electrical equipment cabin includes a fan for directing heat in the electrical equipment cabin to the location of the energy-absorbing tube. 8. The device according to any one of claims 1 to 3, characterized in that the energy-absorbing tubes comprise a spiral or serpentine arrangement. 9. The device according to any one of claims 1 to 3, characterized in that the surface of the energy absorbing tube or the heat dissipating tube includes heat dissipating fins. 10. A wind power tower, characterized by comprising the wind power tower bottom platform heat dissipation device according to any one of claims 1 to 9.