Dual circulation cooling cooler on hot side of heat pipe wind generating set

Abstract

The invention discloses a dual circulation cooling cooler on the hot side of a heat pipe wind generating set, which comprises a heat pipe bundle, a fan on the cold side, a circulating fan on the hot side and a wind scooper. The heat pipe bundle is arranged on the top plate of a generator room and is divided into two parts; and the circulating fan is arranged in the generator room. The dual circulation cooling cooler has the advantages that: firstly, the two centrifugal fans positioned in the generator room ensure that the air in the generator room forms a main circulating air passage and an auxiliary circulating air passage, which are convenient for the heat generated by the generating set to be immediately transferred to the heat pipe bundle. The motor of the centrifugal fan adopts external type; therefore, the influence on the service life of the motor by high temperature is avoided. Secondly, the integral structure is compact, the volume is small, and the weight is light. Thirdly, the heat pipe adopts a composite pipe with copper and aluminum in the outer layer and the inner layer respectively, the aluminum pipe in the outer layer forms a fin through cold rolling process, therefore the heat-transfer area of the heat pipe is effectively increased. Fourthly, taking the accidental release of the heat pipe into consideration, a liquid collecting device and a liquid level alarming device are installed in the generator room. Fifthly, desiccant is arranged in the generator room, which can keep dry of the air in the generator room and ensure the normal operation of the generating set.

Description

technical field [0001] The invention relates to a heat pipe type cooler for a wind power generating set with a double-cycle cooling mode on the hot side, in particular to a heat pipe type cooler. Background technique [0002] Wind turbines generate a lot of heat during work, which must be dissipated as soon as possible to ensure that the generators do not overheat and operate normally. [0003] Now commonly used wind turbine coolers have a bare tube bundle structure, the heat generated by the generator set is transferred to the tube bundle, and then cooled by external cooling air. This kind of heat exchanger has a relatively simple structure, and although it has good reliability, the heat exchange effect is not ideal, and the volume is large and the weight is heavy, which brings great inconvenience to installation and disassembly. [0004] There are also some wind turbine coolers that first transfer the heat generated by the generator to the water radiator or oil radiator a...

AI Technical Summary

Problems solved by technology

This kind of structure is relatively complicated, the heat exchange efficiency will be greatly reduced after several transfers, the volume is large, the weight is heavy, and there is also the risk of water or oil leakage.

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