Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Process for filling low temperature heat pipe media

A heat pipe and medium technology, which is applied in the technological field of low temperature heat pipe medium filling, achieves the effect of shortening processing time, good effect and simple process

Inactive Publication Date: 2012-07-04
航天科工哈尔滨风华有限公司
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Close the exhaust valve;

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0009] Example 2. (1) Determination of the standard height of the liquid injection volume: select the outer diameter of the filling tank to be φ159 cm, and determine the liquid injection volume of the 9-meter-long tube to be a height difference of 360 mm; (2) Filling of the ammonia liquid in the filling tank First, open the valve of the ammonia tank filled with ammonia gas, fill the filling tank with liquid, the liquid level gauge installed in the filling tank can directly check the height greater than 340mm, and the liquid level is visible, fix the scale at the liquid level of the filling tank The upper end of the ruler is flush with the liquid level, and the height difference for determining the amount of liquid injection is 340mm; (3) Preparation for installation of the heat pipe Place the liquid filling pipe on the front and rear brackets, and adjust the height difference between the front and rear ends of the heat pipe. height, and insert the filling nozzle into the fillin...

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 relates to a process for filling low temperature heat pipe media, which includes: 1. preparing of filling liquid quantity, 2. filling of ammonia liquid in a filling tank, 3. installation preparing of a heat pipe, 4. filling of media, 5. air exhausting of the heat pipe, 6. sealing of a liquid filling pipe, 7. sealing of an exhaust pipe and 8. welding of a protection cap. The process for filling the low temperature heat pipe media is simple, time-saving, labor-saving, high in filling work efficiency and easy and simple in method, reduces labor intensity, shortens processing time, and is safe, reliable and not apt to generate ammonia leakage. The process for filling the low temperature heat pipe media has the advantages that a new filling process is applied during low temperature heat pipe manufacture, the existing process method of using a vacuum pump for vacuumizing is fundamentally changed, and the feature of rapidly expanding in volume during evaporation of liquid ammonia is used for leading pressure in the pipe to be increased. The air is evacuated through pressure of gaseous ammonia, and the process is good in effect and reduces production cost.

Description

technical field [0001] The invention relates to a medium filling process for a low-temperature heat pipe. Background technique [0002] At present, the low-temperature heat pipe is a liquid-vapor two-phase flow heat transfer device. It is actually composed of a closed tube filled with working fluid. The upper part of the tube is welded with cooling blades, which is called radiator (also called condenser or condensation section); the lower part of the tube is buried in permafrost, called evaporator (also called evaporation section). In the cold season, when the air temperature is lower than the soil temperature, the temperature of the condensation section is lower than the temperature of the evaporation section, and the heat pipe starts. The liquid working medium in the evaporation section absorbs the latent heat of vaporization and evaporates into a gas. Under the action of pressure difference, the steam rises along the inner cavity of the tube to the condensation section...

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 & Authority Applications(China)
IPC IPC(8): F28D15/02
Inventor 兰凤江任奉刚高丹
Owner 航天科工哈尔滨风华有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products