A square shell cross joint

Abstract

The invention relates to a square tube shell cross joint, wherein the main tube shell and the branch tube shell both comprise a plurality of capillary axial grooves, a steam channel and a circumferential groove; The main shell and branch shell are hollow structure, the hollow part is steam channel, the section of steam channel is rectangle with four corners and guide fillet; A capillary axial groove is uniformly distributed on the inner wall surfaces of the main shell and the branch shell, and is located on two opposite parallel wide surfaces of the steam passage and is communicated with the steam passage, and the capillary axial groove is arranged on the inner wall surfaces of the main shell and the branch shell. A liquid work medium flowing in a capillary axial channel, a steam work medium flowing in a steam channel, and circumferential channels are arranged in parallel, that plane of each circumferential channel is orthogonal to the plane of the capillary axial channel, and the circumferential channel is connecte with and conducts the capillary axial channel; A main pipe shell and a branch pipe shell are vertically crossed to form a square pipe shell cross joint, and that gas working medium condense into liquid through a steam channel into a capillary axial channel at a lower temperature position of the main pipe shell and the branch pipe shell, and the temperature uniformity of the main pipe shell and the branch pipe shell is realized through the flow of the working medium and the gas-liquid phase change.

Description

technical field [0001] The invention relates to a cross-shaped joint of a square tube shell, which belongs to the technical field of vapor-liquid phase change heat transfer. Background technique [0002] Communication satellite technology plays an important role in various fields in various countries in the world, and a large number of space traveling wave tubes are the core components of microwave power amplification on communication satellites. There are a large number of space traveling wave tubes on communication satellites, which consume a lot of power and are scattered on the satellite deck. It is necessary to take appropriate thermal control measures for them to ensure that their on-orbit temperature meets the index requirements. The current common practice is that the space traveling wave tube is arranged inside the satellite deck, and the outer surface of the satellite deck is used as a radiation heat dissipation surface to dissipate the working heat loss of the spa...

AI Technical Summary

Problems solved by technology

[0004] (1) The full pre-embedding method will complicate the manufacturing process of the satellite deck. It is necessary to first paste the balance heat pipe on the lower panel, then place the honeycomb core, then place the parallel heat pipe, and finally place the upper panel. During this period, the leveling of the deck is involved. In addition, the heat transfer between the parallel heat pipes and the balanced heat pipes only depends on a small area of ​​overlap, the contact thermal resistance is large, and the heat transfer effect is limited;

[0005] (2) Compared with the full embedded method, although the manufacturing process of the satellite deck is relatively simple, the contact thermal resistance between the balance heat pipe and the parallel heat pipe is increased by a layer of contact resistance with the panel and the heat conduction of the panel itself thermal resistance;

[0006] (3) All-outside-attached type, which balances the horizontal temperature equalization effect of the heat pipe, and indirectly realizes the heat transfer by the overlap between the heat pipe and the parallel heat pipe, and the temperature uniformity effect is not good

The traditional axial channel heat pipe steam channels are all circular, and Maoxin axial channels are arranged along the circumferential direction. Under this structural condition, if you want to ensure that the capillary axial channels are connected to each other one by one at the joint, It is very difficult to process, and it is not easy to realize

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