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Wind generating set closed cooling system

A technology for wind turbines and cooling systems, applied in cooling/ventilation/heating transformation, electrical components, electrical equipment structural parts, etc., can solve problems such as damage to mechanical seals, unit shutdown, inconsistent life of circulating pumps, etc., to prolong life. , The effect of increasing power generation and reducing inspection time

Active Publication Date: 2017-05-31
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a cooling system using a circulating pump, because the mechanical seal of the circulating pump is a weak point, the unit often shuts down for a long time due to unforeseen damage to the mechanical seal
For the cooling system with one standby and one active circulating pump, although the standby circulating pump can be cut in if one circulating pump is damaged, so that the unit can continue to work normally, but the current switching of one standby and one active needs to be switched manually. Moreover, if a main circulation pump is not damaged after long-term operation, the backup pump will not start, which will lead to inconsistent service life of the two circulation pumps

Method used

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Embodiment Construction

[0035] Embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0036] Such as figure 1As shown, the converter cabinet 200 and the main transformer cabinet 400 are placed on different layers inside the tower 300, for example, the main transformer cabinet 400 is arranged on the base platform 320 at the bottom of the tower 300, and the converter cabinet 200 is arranged on the tower The first layer platform 310 inside the cylinder. A main transformer is installed in the main transformer cabinet 400, and a main transformer heat exchange module for dissipating heat is provided inside the main transformer. A converter is installed in the converter cabinet 200, and a converter heat exchange module is provided inside the converter to dissipate heat. In the converter, heat is mainly generated in the IGBT power module. Therefore, the heat exchange module of the converter is mainly used to dissipate heat from the IGBT p...

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Abstract

The invention provides a wind generating set closed cooling system. The wind generating set closed cooling system comprises a pump station, an external heat exchanger, a heat exchanging module of equipment to be cooled and a connection pipeline, wherein the pump station comprises a circulating pump and a three-way valve; a pipeline on the outlet side of the circulating pump is connected to the inlet of the three-way valve; the two outlets of the three-way valve are connected to a pipeline on the inlet side of the external heat exchanger and a bypass pipeline of the external heat exchanger; a joint between the pipeline on the outlet side of the external heat exchanger and the bypass pipeline is connected to the inlet of the heat exchanging module; a pipeline on the outlet side of the heat exchanging module is connected with a pipeline on the inlet side of the circulating pump. By adopting the wind generating set closed cooling system, high-pressure cooling liquid can be prevented from directly flowing into the heat exchanging module of the equipment to be cooled, impact of the cooling liquid is reduced, and the heat exchanging module is protected.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a closed cooling system for a wind power generating set. Background technique [0002] As a green and clean energy, wind energy has developed rapidly in recent years. With the development of onshore wind resources becoming increasingly saturated, high-quality offshore wind energy resources have gradually become the focus of development in various countries, and wind turbines are becoming more and more large-scale. Although offshore wind power has the advantages of high-quality wind resources, no land occupation, and good grid connection conditions, it also faces challenges such as high cost, difficult maintenance, and harsh environmental conditions. [0003] With the development of offshore wind power, wind turbines are getting farther and farther away from the coastline. In addition, the environment in Shanghai is particularly harsh, and its maintenance is becoming more and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20
CPCH05K7/20272
Inventor 郭海荣王世欢付伟徐晓东
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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