CN215452708U - Cooling structure of generator - Google Patents

Abstract

A cooling structure of a generator comprises a generator body, wherein a heat exchange chamber is arranged at the top end of the generator body, evaporation ends (also called heating ends) of a plurality of loop heat pipes extend into the heat exchange chamber at the top end of the generator body, a condensation end (also called heat release end) of each loop heat pipe is arranged on the side of the bottom of the generator body, and the evaporation ends and the condensation ends of the loop heat pipes are connected into a whole through a section, provided with a working medium and a capillary core, in each loop heat pipe. The cooling structure of the generator can reduce the cost of the generator, shorten the installation period and reduce the construction cost of a factory building on the premise of continuous, reliable and efficient cooling.

Description

Cooling structure of generator

Technical Field

The present invention relates to a cooling structure of a generator.

Background

The generator generates a large amount of heat during operation, and needs to be cooled to ensure its normal operation. At present, there are two main ways of cooling generators in the industry: 1. in addition, the cooler is arranged at the top of the generator, and the generator and the cooler need to be manufactured into an integrated structure, so that the shell of the generator is thick, materials are consumed, the cost of the generator is increased, meanwhile, the weight of the whole generator is greatly increased due to the fact that the cooler is heavy, and the labor cost and the transportation cost are greatly increased; 2. the utility model discloses a cooling system, including the cooler, the cooler is installed to the factory building department, the cooler is installed to the generator, the cooler is installed as coolant, the cooler is installed to the generator, therefore, to the cooler, still need increase corresponding cooler installation position in factory building department, and the cooler is bulky and heavy, therefore greatly increased the construction cost of factory building, simultaneously because cooler and generator components of a whole that can function independently set up, therefore increased the cost of transportation, and need increase the human cost during the installation and assemble and debug, installation period and human cost have been increased.

In order to solve the above problems, the industry considers that an evaporative cooling mode, that is, evaporative cooling is realized by adopting a heat pipe technology, however, due to structural limitations, when steam is generated, interference and electrical safety problems may be caused to a high-voltage electric field and a complex strong magnetic field environment in which the generator works, and therefore, the evaporative cooling mode has not been implemented on a larger generator structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cooling structure of a generator, which can reduce the cost of the generator, shorten the installation period and reduce the construction cost of a factory building on the premise of continuous, reliable and efficient cooling.

The cooling structure of the generator comprises a generator body, wherein a heat exchange chamber is arranged at the top end of the generator body, the evaporation ends of a plurality of loop heat pipes extend into the heat exchange chamber at the top end of the generator body, the condensation end of each loop heat pipe is arranged on the side of the bottom of the generator body, and the evaporation end and the condensation end of each loop heat pipe are connected into a whole by a section provided with a working medium and a capillary core.

The cooling structure of the generator absorbs heat generated by the generator through the evaporation end of the loop heat pipe (also called loop heat pipe in the industry), the absorbed heat is transferred to a section of the loop heat pipe with working medium, the working medium absorbs the heat to form steam, the steam enters the condensation end at the bottom end of the loop heat pipe through the loop heat pipe, the steam working medium is cooled and liquefied through cold water in the condensation end, then the liquefied working medium is absorbed through a capillary core in the loop heat pipe again and is transferred to the evaporation end of the loop heat pipe, thereby realizing the cooling of the generator, as the loop heat pipe has higher speed for the cold and heat transfer, the generator is continuously and efficiently cooled through the repeated vaporization and liquefaction process of the working medium in a closed pipeline, and as the mode of using water cooling at the top end of the generator or using hydrogen cooling at the top end or the bottom end of the generator is avoided, the occurrence of electric leakage and explosion accidents is effectively avoided, so that the generator is safe and reliable in the working process; secondly, as the loop heat pipe is used for evaporative cooling, the loop heat pipe and the generator are connected into a whole to form an integrated structure, the size and the weight of the generator body are simplified, the cost of the generator is greatly reduced, the field installation operation is avoided, the installation construction cost, the transportation cost and the labor cost are reduced, the installation period is shortened, and the factory building construction cost is also reduced; and because the loop heat pipe is adopted for evaporative cooling, heat is exchanged in a narrow space of the loop heat pipe, so that the loop heat pipe can be applied to a large-scale generator, the interference of high voltage and strong magnetic field environment generated when the large-scale generator works is effectively avoided, and the safety of electric operation is ensured.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is a schematic diagram of the cooling of a loop heat pipe according to the present invention.

FIG. 3 is a sectional view taken along the direction B-B in FIG. 1.

Detailed Description

A cooling structure of a generator is shown in figures 1 to 3 and comprises a generator body 1, wherein a heat exchange chamber 2 is arranged at the top end of the generator body 1, evaporation ends 4 of a plurality of loop heat pipes 3 extend into the heat exchange chamber 2 at the top end of the generator body 1, a condensation end 5 of each loop heat pipe 3 is arranged on the side of the bottom of the generator body 1, and one section of each loop heat pipe 3, which is provided with a working medium and a capillary core 6, connects the evaporation ends 4 and the condensation ends 5 of the loop heat pipes 3 into a whole. The loop heat pipe is in the prior art, the specific connecting structure of the evaporation end, the condensation end and the capillary core is also in the prior art, the placing position of the working medium in the loop heat pipe also belongs to the prior art, and the working principle of the cooling circulation of the loop heat pipe per se belongs to the prior art. The loop heat pipe has a section of working medium and capillary core, and the working medium is on the inner layer, and the capillary core is on the outer layer, or the working medium is on the outer layer, and the capillary core is on the inner layer, which belongs to the prior art. The heat exchange chamber is a chamber formed by the generator shell and the top end of the generator body.

The plurality of loop heat pipes 3 are arranged at intervals, and the evaporation ends 4 are arranged from long to short or from short to long, as shown in fig. 1. Because the length of the evaporation end is arranged from long to short or from short to long, the generator can be uniformly cooled everywhere, and the uneven cooling of the generator is avoided.

Claims (2)

1. The utility model provides a cooling structure of generator, includes generator body (1), is provided with heat exchange chamber (2) on the top of generator body (1), its characterized in that: the evaporation ends (4) of the plurality of loop heat pipes (3) extend into the heat exchange chamber (2) at the top end of the generator body (1), the condensation end (5) of each loop heat pipe (3) is arranged on the side of the bottom of the generator body (1), and the evaporation ends (4) and the condensation ends (5) of the loop heat pipes (3) are connected into a whole by one section with working media and capillary cores (6) in each loop heat pipe (3).

2. A cooling structure of a generator according to claim 1, wherein: the loop heat pipes (3) are arranged at intervals, and the lengths of the evaporation ends (4) are arranged from long to short or from short to long.

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