heat pipe radiator

A radiator and heat pipe technology, applied in the field of medium-temperature heat pipe radiators, can solve the problems of complex process, heavy radiator structure, large thermal resistance of the connection interface, etc., to reduce manufacturing costs, improve heat dissipation efficiency, and high equivalent The effect of thermal conductivity

Active Publication Date: 2021-08-03
SHANGHAI SATELLITE ENG INST
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The honeycomb panel used in this patent cannot be used at a temperature of 200-300°C
Due to the high material density and low unit thermal conductivity of the metal panel, the radiator structure is heavy and the in-plane temperature uniformity is poor
Although the thermal conductivity of high thermal conductivity composite materials is significantly improved compared with metals, the density is also reduced, but composite materials are expensive and complex in process, and can only be connected with metal heat pipes by bonding or brazing, and the connection interface is easy. produce a large thermal resistance
What's more serious is that there is a significant difference between the thermal expansion rate of the composite material and the metal material of the heat pipe wall, which is prone to reliability problems such as detachment and spalling during high and low temperature cycles

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • heat pipe radiator
  • heat pipe radiator
  • heat pipe radiator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0031] The present invention adopts the planar tube bundle composed of capillary array 9 to replace the existing radiant panel 4. The steam generated by the evaporation section 1 of the heat pipe is led to each capillary through the connection between the capillary and the heat pipe, and condenses and releases heat in the capillary. The condensate is driven by the vapor pressure to move downstream, returns to the heat pipe in the capillary return section 6, and finally uses the suction effect of the capi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a heat pipe radiator, which comprises a heat pipe and a planar tube bundle composed of a plurality of capillaries. The heat pipe includes an evaporation section and a condensation section, each of which is provided with a capillary core layer and a steam channel. tube hole, the condensing section includes an upstream part and a downstream part in which the internal steam channel is separated from each other, one end of the capillary bundle is connected to the tube hole in the upstream part, and the other end is connected to the tube hole in the downstream part . The capillary bundle greatly expands the area of ​​the condensation section of the heat pipe to form a main radiation heat dissipation surface. If a heat pipe radiator provided by the invention uses a heat pipe as a heat transfer device, it can realize long-distance and large-area high-efficiency heat flow transmission. On the one hand, the heat pipe principle is used to improve the isothermal temperature and radiation heat dissipation efficiency of the radiating surface; on the other hand, the structural mass is reduced, and good system reliability and low production cost are realized.

Description

technical field [0001] The invention relates to a spacecraft heat dissipation component, in particular to a light-weight medium-temperature heat pipe radiator. Background technique [0002] High-power spacecraft are often equipped with thermal radiators with strong heat dissipation capabilities to meet the needs of spacecraft for long-term, high-power waste heat emission. A favorable way to achieve efficient heat dissipation is to appropriately increase the heat dissipation temperature without exceeding the bearing capacity of the structural material, such as reaching 200-300°C, so as to effectively reduce the heat dissipation area and reduce the structural weight of the radiator. Large-area radiation radiators often use heat pipes as the core components for heat transfer and expansion. Heat pipes have the advantages of high heat transfer efficiency, completely passive work, long life, and high reliability, and are widely used in the design of spacecraft thermal control sys...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): F28D15/04
CPCF28D15/0266F28D15/046
Inventor李志松董丽宁姜建飞牟旭娜
OwnerSHANGHAI SATELLITE ENG INST