CN205779513U - A kind of cooling system of offshore wind turbine - Google Patents

Abstract

The utility model relates to a cooling system of an offshore wind power generating set, which comprises a liquid heat exchanger, a pump, a seawater cooler, a cooling liquid replenishment device, a delivery cooling liquid storage and a recovery cooling liquid storage, the liquid heat exchanger It is arranged in the engine room, the delivery coolant storage and the recovery coolant storage are arranged on the same level in the engine room, a pump is arranged between the liquid heat exchanger and the recovery coolant storage, and the seawater cooler is set In seawater, the outlet and inlet of the seawater cooler are respectively connected to the delivery coolant storage and the recovery coolant storage through pipelines. When the cooling system is working, the liquid in the delivery coolant storage is transported to the recovery coolant storage by a pump. In the storage, the principle of the connecting device is used to greatly reduce the power consumption of the cooling system when it is working, and the seawater at the bottom of the tower is used as the final cooling source, which greatly improves the effect of the cooling system.

Description

A cooling system for an offshore wind turbine

technical field

The utility model relates to the field of wind power generation, in particular to a cooling system of an offshore wind power generating set.

Background technique

Wind turbines will generate a lot of heat during operation. If the heat is not discharged in time, the efficiency of wind turbines will be greatly reduced, and eventually they will be paralyzed. Therefore, it is an indispensable and important measure to ensure the long-term and normal operation of wind turbines to be equipped with a cooling system with excellent performance and rapid cooling. At present, the widely used forced internal ventilation cooling system has poor cooling effect and is not suitable for large-capacity wind turbines. The existing liquid circulation cooling system generally transfers the heat of the heat-generating components to the external heat exchanger through a pump. The heat exchanger is generally in the air-cooling mode. This cooling method uses air as the final cooling source. Due to the small mass flow rate of the air, the cooling effect is limited. When the capacity of the unit increases and the heat generation is greater, it is difficult to meet the cooling requirements. Require. However, the currently used water cooling system has a long cycle period, and it is inconvenient to replenish the cooling liquid, especially for the cooling of the wind turbine at the top of the tower.

Utility model content

The purpose of this utility model is to overcome the shortcomings of the existing cooling system, and provide a cooling system for offshore wind power generators with good cooling effect, low power consumption, and convenient replenishment of cooling liquid.

The technical solution of the utility model is: a cooling system of an offshore wind power generating set, which includes a liquid heat exchanger, a pump, a seawater cooler, a cooling liquid replenishment device, a transporting cooling liquid storage and a recovery cooling liquid storage, the The liquid heat exchanger is arranged in the engine room, and the delivery coolant storage and the recovery coolant storage are arranged on the same horizontal plane in the engine room, and the tops of the delivery coolant storage and the recovery coolant storage are provided with through holes and The inlet and outlet of the liquid heat exchanger are respectively connected to the delivery coolant storage and the recovery coolant storage through pipelines, and a pump is arranged between the liquid heat exchanger outlet and the recovery coolant storage. The seawater cooler is arranged in the seawater, the outlet and the inlet of the seawater cooler are respectively connected to the delivery cooling liquid storage and the recovery cooling liquid storage through pipelines, and the tower between the delivery cooling liquid storage and the outlet of the seawater cooler The pipe at the bottom of the barrel is equipped with a coolant replenishment device.

In order to automatically control the cooling system, a control device and a temperature sensor are also provided. The temperature sensor is arranged on the liquid heat exchanger for real-time detection of the temperature of the liquid heat exchanger. The control device controls the temperature according to the temperature detected by the temperature sensor in real time. The working status of the pump.

In order to supplement the cooling liquid in time, a liquid level sensor is also provided. The liquid level sensor is arranged in the delivery cooling liquid storage and the recovery cooling liquid storage. When the liquid level is lower than the set value, the liquid level sensor sends out an alarm signal.

The beneficial technical effect of the utility model is that, when the cooling system is working, the liquid in the cooling liquid storage is transported by the pump through the installation of the delivery cooling liquid storage and the recycling cooling liquid storage in the cabin at the top of the tower tube to communicate with the atmosphere. To recover the coolant storage, using the principle of the connecting device, the power consumption of the cooling system is greatly reduced, and the coolant replenishment device is installed at the bottom of the tower, which is convenient for replenishing the coolant, and the seawater at the bottom of the tower is used as the final cooling source, greatly improving the effectiveness of the cooling system.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the utility model.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Referring to the accompanying drawings, a cooling system for offshore wind power generators includes a liquid heat exchanger 3, a pump 7, a seawater cooler 4, a cooling liquid replenishment device 8, a delivery cooling liquid storage 6 and a recovery cooling liquid storage 5, The liquid heat exchanger 3 is arranged in the nacelle 1, the delivery coolant reservoir 6 and the recovery coolant storage 5 are arranged on the same level in the engine room 1, the delivery coolant storage 6 and the recovery coolant storage The top of the reservoir 5 is provided with a through hole to communicate with the atmosphere. The inlet and outlet of the liquid heat exchanger 3 are respectively connected to the delivery cooling liquid storage 6 and the recovery cooling liquid storage 5 through pipelines. A pump 7 is provided between the recovery cooling liquid storage 5, and the seawater cooler 4 is arranged in seawater, and the outlet and the inlet of the sea water cooling device 4 are respectively connected with the delivery cooling liquid storage 6 and the recovery cooling liquid storage through pipelines. 5, a cooling liquid replenishment device 8 is provided on the pipeline at the bottom of the tower tube 2 between the cooling liquid storage tank 6 and the outlet of the seawater cooler 4, and a control device and a temperature sensor are also provided for automatic control of the cooling system , the temperature sensor is arranged on the liquid heat exchanger 3 for real-time detection of the temperature of the liquid heat exchanger 3, and the control device controls the working state of the pump 7 according to the temperature detected by the temperature sensor in real time, in order to supplement the coolant in time A liquid level sensor is also provided, and the liquid level sensor is arranged in the delivery coolant storage 6 and the recovery coolant storage 5. When the liquid level is lower than the set value, the liquid level sensor sends out an alarm signal.

Claims (3)

1. a cooling system for offshore wind turbine, it includes liquid heat-exchanger, pump and coolant supplementary device, described Liquid heat exchanger is arranged in cabin, it is characterised in that also includes brine cooler, carries coolant reservoir and reclaim cold But liquid bin, described conveying coolant reservoir and recovery coolant reservoir are arranged in the same level in cabin, Described conveying coolant reservoir and recovery coolant reservoir top are provided with through hole and atmosphere, described liquid heat exchanger Entrance and exit respectively by pipeline with conveying coolant reservoir and recovery coolant reservoir be connected, in liquid heat-exchange Being provided with pump between device outlet and recovery coolant reservoir, described brine cooler is arranged in the seawater, described brine cooler Outlet and entrance by pipeline respectively with conveying coolant reservoir and reclaim coolant reservoir be connected, carrying coolant The pipeline bottom tower between bin and the outlet of brine cooler is provided with coolant supplementary device.

The cooling system of a kind of offshore wind turbine the most as claimed in claim 1, it is characterised in that be additionally provided with control dress Putting and temperature sensor, described temperature sensor is arranged on liquid heat exchanger, for detecting the real-time of liquid heat exchanger Temperature, described control device controls the duty of pump according to the real time temperature that temperature sensor detects.

The cooling system of a kind of offshore wind turbine the most as claimed in claim 1 or 2, it is characterised in that be additionally provided with liquid Face sensor, described liquid level sensor is arranged on conveying coolant reservoir and reclaims in coolant reservoir, when liquid level is less than Setting value, liquid level sensor sends alarm signal.