Loop heat pipe size tolerance capillary core and shell assembly device and process method

Abstract

The invention provides an assembling device for a loop heat pipe size tolerance capillary core and a shell and a technology method. The assembling device comprises a hydraulic module (1), a die pressure module (2) and a clearance fit piece (3). The clearance fit piece (3) is assembled in the hydraulic module (1). The hydraulic module (1) comprises a supporting frame (11), a hydraulic device (12), a pressure applying shaft rod (13) and a pressure transmitting block (14), all of which are sequentially connected. According to the assembling device and the technology method, scraping between the capillary core and the evaporator shell is reduced as much as possible, and thermal contact resistance generated between the capillary core and the evaporator shell during assembling is effectively reduced. Remarkable effects are achieved for improving the reliability and heat transferring performance of LHP products.

Description

technical field [0001] The invention relates to the technical field of temperature control of a loop heat pipe for thermal control of a spacecraft, in particular to an assembly device for a capillary core and a shell with a size tolerance of the loop heat pipe. Background technique [0002] Loop Heat Pipe (LHP) is a high-efficiency two-phase heat transfer device. It uses the capillary force generated by the capillary core in the evaporator to drive the circulating flow of the working fluid, and uses the phase change process of the evaporation and condensation of the working fluid to transfer heat. Realize spacecraft heat dissipation. At present, the loop heat pipe temperature control device has become the main thermal control means of spacecraft in European and American countries. [0003] The capillary core in the evaporator is the core component of the loop heat pipe, and its parameters directly determine the operating characteristics of the loop heat pipe. At present, t...

AI Technical Summary

Problems solved by technology

This method of interference design, when the interference design is small, will cause most of the area of ​​the capillary core to not be in effective contact with the evaporator shell, and when the interference design is large, the outer surface of the capillary core will be damaged when the interference is assembled. A large number of scratches are generated, causing a large number of micropores on the outer surface of the capillary core to be blocked

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