Cooling and radiating device of wind driven generator

Abstract

A cooling and radiating device for a wind driven generator belongs to the technical field of wind power generation. The problem that an existing wind driven generator is poor in cooling and heat dissipation effect is solved. The two heat dissipation units are used for cooling and dissipating heat of a mechanism in a mechanism cavity of the wind driven generator; the two heat dissipation unit mechanisms are the same and each comprise a shell, and the two shells are arranged on heat dissipation openings of a wind driven generator mechanism cavity in a buckled mode respectively. A stepping motor is arranged in the shell, the stepping motor drives cooling fan blades to rotate through a rotating shaft, and the cooling fan blades are arranged at the cooling openings; a dry ice high-pressure cavity is further fixed to the shell, and an air outlet of the dry ice high-pressure cavity is formed in the air inlet side of blades of the cooling fan. An electromagnetic valve is arranged at an air outlet of the dry ice high-pressure cavity; the temperature sensor is used for collecting the temperature in a mechanism cavity of the wind driven generator and sending a collected temperature signal to the controller, and the controller controls the opening degree of the electromagnet and the on-off and output power of the stepping motor according to the received temperature signal. The invention is suitable for heat dissipation of the wind driven generator.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power generation. Background Art

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. A wind turbine generally consists of components such as a wind wheel, a generator, a direction regulator, a tower, a speed limiting safety mechanism and an energy storage device. During the operation of a wind turbine, high temperature will be generated inside, and a cooling and heat dissipation device is required.

[0003] The existing cooling and heat dissipation devices have poor heat dissipation effects. When the wind turbine is generating electricity, the internal temperature cannot be cooled down in time, which easily causes the internal components to burn out due to high temperatures, making it inconvenient for people to use. Summary of the invention

[0004] The present invention aims to solve the problem that the existing wind turbine has poor cooling and heat dissipation effect, and provides a wind turbine cooling and heat dissipation device.

[0005] The wind turbine cooling and heat dissipation device of the present invention comprises: two heat dissipation units, each heat dissipation unit comprises a controller and a temperature sensor;

[0006] Heat dissipation openings are provided on both sides of the wind turbine mechanism cavity, and the heat dissipation units are respectively arranged on both sides of the wind turbine mechanism cavity and correspond to the heat dissipation openings, and the two heat dissipation units are used to cool and dissipate the mechanism in the wind turbine mechanism cavity;

[0007] The two heat dissipation units have the same structure and both include a shell, which is buckled on the heat dissipation port of the wind turbine mechanism cavity;

[0008] A stepper motor is arranged in the housing, and the stepper motor drives the heat dissipation fan blades to rotate through the rotating shaft, and the heat dissipation fan blades are arranged at the heat dissipation port;

[0009] A dry ice high-pressure chamber is also fixed on the shell, and the dry ice high-pressure chamber is arranged on the top surface of the shell, and its air outlet is arranged on the air inlet side of the heat dissipation fan blade; and the air outlet of the dry ice high-pressure chamber is provided with a solenoid valve;

[0010] The temperature sensor is used to collect the temperature in the wind turbine mechanism cavity and send the collected temperature signal to the controller. The controller controls the opening of the electromagnetic and the stepper motor switch and output power according to the received temperature signal.

[0011] Furthermore, in the present invention, the controller uses a PID control algorithm to utilize the signal collected by the temperature sensor to control the electromagnetic opening, the stepper motor switch and the output power.

[0012] In the present invention, when the temperature detected by the temperature sensor exceeds the threshold temperature, the controller controls the fan to turn on. If the temperature reaches a higher threshold, the solenoid valve of the dry ice high-pressure chamber is controlled to open, and the fan carries the air quickly cooled by the dry ice into the wind turbine mechanism chamber to achieve rapid cooling, effectively avoiding damage to the wind power generation equipment caused by excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the device of the present invention. DETAILED DESCRIPTION

[0014] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0015] Specific implementation method 1: refer to Figure 1 Specifically describing this embodiment, the wind turbine cooling and heat dissipation device described in this embodiment includes: two heat dissipation units, each heat dissipation unit includes a controller and a temperature sensor;

[0016] Heat dissipation openings are provided on both sides of the wind turbine mechanism cavity, and the heat dissipation units are respectively arranged on both sides of the wind turbine mechanism cavity and correspond to the heat dissipation openings, and the two heat dissipation units are used to cool and dissipate the mechanism in the wind turbine mechanism cavity;

[0017] The two heat dissipation units have the same structure and both include a housing 2. The two housings 2 are respectively buckled on the heat dissipation openings of the wind turbine mechanism cavity;

[0018] A stepper motor 5 is arranged in the housing 2, and the stepper motor 5 drives the cooling fan blades 4 to rotate through the rotating shaft, and the cooling fan blades 4 are arranged at the cooling port;

[0019] A dry ice high-pressure chamber 1 is also fixed on the shell 2. The dry ice high-pressure chamber 1 is arranged on the top surface of the shell 2, and its air outlet is arranged on the air inlet side of the heat dissipation fan blade 4; and the air outlet of the dry ice high-pressure chamber 1 is provided with a solenoid valve;

[0020] The temperature sensor is used to collect the temperature in the wind turbine mechanism cavity and send the collected temperature signal to the controller. The controller controls the opening of the electromagnetic and the switch and output power of the stepper motor 5 according to the received temperature signal.

[0021] Furthermore, in the present invention, the controller adopts a PID control algorithm to control the electromagnetic opening, the switching of the stepping motor 5 and the output power using the signal collected by the temperature sensor.

[0022] The temperature threshold and higher temperature threshold of the present invention are set according to the working environment temperature and warning temperature of the equipment in the wind turbine mechanism cavity, which effectively ensures the safety of the equipment during use. The shell of the wind turbine mechanism cavity of the present invention is provided with a vent, and the low-temperature gas entering the shell of the wind turbine mechanism cavity through the heat dissipation port is blown out through the vent, which effectively and quickly reduces the temperature in the wind turbine mechanism cavity.

[0023] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that the features described in conjunction with a single embodiment may be used in other described embodiments.

Claims

1. A wind turbine cooling and heat dissipation device, characterized in that: include: Two heat dissipation units, each heat dissipation unit includes a controller and a temperature sensor; Heat dissipation openings are provided on both sides of the wind turbine mechanism cavity, and the heat dissipation units are respectively arranged on both sides of the wind turbine mechanism cavity and correspond to the heat dissipation openings, and the two heat dissipation units are used to cool and dissipate the mechanism in the wind turbine mechanism cavity; The two heat dissipation units have the same structure and both comprise a housing (2), and the two housings (2) are respectively buckled on the heat dissipation opening of the wind turbine mechanism cavity; A stepper motor (5) is arranged in the housing (2), and the stepper motor (5) drives the heat dissipation fan blades (4) to rotate via a rotating shaft, and the heat dissipation fan blades (4) are arranged at the heat dissipation port; A dry ice high-pressure chamber (1) is also fixed on the shell (2); the dry ice high-pressure chamber (1) is arranged on the top surface of the shell (2), and its air outlet is arranged on the air inlet side of the heat dissipation fan blade (4); and the air outlet of the dry ice high-pressure chamber (1) is provided with a solenoid valve; The temperature sensor is used to collect the temperature in the wind turbine mechanism cavity and send the collected temperature signal to the controller. The controller controls the opening of the electromagnetic and the switch and output power of the stepping motor (5) according to the received temperature signal.

2. The wind turbine generator cooling and heat dissipation device according to claim 1, characterized in that: The controller adopts a PID control algorithm and utilizes the signal collected by the temperature sensor to control the opening of the electromagnetic and the switch of the stepping motor (5) and the output power.

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