CN101881568A - Setting method for heat pipe start-up temperature value - Google Patents
Setting method for heat pipe start-up temperature value Download PDFInfo
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- CN101881568A CN101881568A CN 201010217161 CN201010217161A CN101881568A CN 101881568 A CN101881568 A CN 101881568A CN 201010217161 CN201010217161 CN 201010217161 CN 201010217161 A CN201010217161 A CN 201010217161A CN 101881568 A CN101881568 A CN 101881568A
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- heat pipe
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Abstract
The invention relates to a setting method for a heat pipe start-up temperature value, comprising the following steps: according to the specific temperature range needing to exchange heat actually, selecting the work medium corresponding to the heat exchanging temperature range; after filling the corresponding work medium in the heat pipe, evacuating air in the heat pipe and then introducing inert gas in the heat pipe so as to enable the pressure in the heat pipe to reach the pressure value corresponding to the start-up temperature value of the work medium in the heat pipe; closing the heat pipe so as to set the heat exchange start-up temperature value of the heat pipe. The mode is simple to control, has low cost and accurate control, effectively prevents the exposed point of the heat pipe heat exchanger from being corroded, develops a new application range and can be widely used for recovering after heat and waste heat and reducing the energy consumption.
Description
Technical field
The present invention is a kind of heat conduction and controlled heat conduction temperature establishing method that is applied to fields such as boiler, Industrial Stoves, the hot equipment of chemical industry, heat recovery, is specifically related to a kind of temperature establishing method technical field of heat exchange device.
Background technology
At present, energy-saving and cost-reducing is the state basic policy that country carries out energetically, especially the recovery of used heat, waste heat more has practical value, and has both reduced the pollution to environment of used heat, waste heat, makes full use of recovery waste heat, used heat again, reduces energy resource consumption.It is the green environmental protection technique of benefiting the nation and the people.Hot pipe technique is widely used, its operation principle is to seal after a sealed tube is packed into working media again, one end of heat pipe is an evaporation ends, the other end of heat pipe is a condensation end, the liquid-working-medium carburation by evaporation is delivered to condensation end with heat when the evaporation ends of heat pipe is heated, discharge heat after condensation form liquid, liquid flows back to evaporation ends again, so repeatedly the circulating transfer heat.The shortcoming that existing heat pipe exists start-up temperature accurately not control also with regard to uncontrollable heat exchange temperature range, causes the heat exchange of heat pipe range of application limited.The control of existing heat pipe minimum wall temperature is to realize by the exchange heat of controlling condensation end, and this control mode exists the height of controlling cost, the problem of control accuracy difference.The also lowermost wall surface temperature of uncontrollable heat pipe.
Summary of the invention
The shortcoming that can not accurately control for the minimum wall temperature that overcomes existing heat pipe, the establishing method of heat pipe start-up temperature value of the present invention is the actual temp scope of heat exchange according to actual needs, select the working media corresponding with the heat exchange temperature range, after in heat pipe, being packed into corresponding working media, in heat pipe, charge into inert gas again, so that the pipe internal pressure reaches the particular value that needs, with the rear enclosed heat pipe, thereby realize setting heat pipe heat exchanging start-up temperature value, reach the adjustable purpose of heat pipe start-up temperature value, should reach new range of application on the way to reach the special of heat exchange of heat pipe, realize great economic worth and social value.
The boiling point of working media changes according to pressure, the establishing method of heat pipe start-up temperature value of the present invention utilizes this characteristic exactly, the actual temp scope of heat exchange according to actual needs, the minimum start-up temperature value of selecting heat pipe to need, as make water as working media, look into " water and steam thermodynamic properties chart " and draw corresponding force value, in advance with the fine pressure value in this design of pressure heat pipe, fine pressure value in the heat pipe is to obtain by the inert gas that charges into the corresponding pressure value in heat pipe, thereby realize setting heat pipe start-up temperature value, is controlled with the lowermost wall surface temperature value of the heat exchanger of this heat pipe design.
The establishing method of heat pipe start-up temperature value of the present invention, it is the actual temp scope of heat exchange according to actual needs, select the working media corresponding with the heat exchange temperature range, after in heat pipe, being packed into corresponding working media, air emptying in the heat pipe is charged into inert gas again in heat pipe, so that the pipe internal pressure reaches the force value of the corresponding start-up temperature value of working media correspondence in the heat pipe,, thereby realize setting heat pipe heat exchanging start-up temperature value with the rear enclosed heat pipe.
Described working media is one of three kinds in water, alcohol, medium-acetone.Best working media is a water.Described gas is one of five kinds of nitrogen, argon gas, xenon, helium, radon gas.Best gas is nitrogen.The combination of the best of the establishing method of heat pipe start-up temperature value is that working media is that water, gas are nitrogen.
Heat pipe start-up temperature establishing method of the present invention marked improvement is to adopt by setting the force value of the working media in the heat pipe, be implemented in the interior heat pipe start-up temperature value of setting of temperature range of actual needs heat exchange, to reach the specific use of heat exchange of heat pipe, and new range of application, greatly effectively improve heat exchange efficiency, make energy-saving and cost-reducing benefit obviously improve, can create considerable economic value and social value.
Make control in this way simple, cost is low, and control accurately.Effectively prevent the dew point corrosion of heat exchange of heat pipe, opening new fields of application.
Description of drawings
The establishing method flow chart of Fig. 1 heat pipe start-up temperature value
The specific embodiment
Embodiment one
The recovery waste heat temperature is more than 85 ℃, needing to set heat pipe start-up temperature value is 85 ℃, selected water is as working media, then looking into " water and steam thermodynamic properties chart ", to draw corresponding force value be absolute pressure 58KPa, after in vacuum heat-pipe, injecting working medium water, selected nitrogen as charge into inert gas, reinject nitrogen and to make pipe internal pressure value be absolute pressure 58KPa, heat pipe was with regard to not heat exchange when the heat pipe of making like this was lower than 85 ℃ when the heat exchange temperature.
Embodiment two
The recovery waste heat temperature is more than 120 ℃, heat pipe start-up temperature value is 120 ℃, selected water is as working media, then looking into " water and steam thermodynamic properties chart ", to draw corresponding force value be absolute pressure 199KPa, for this reason, we inject working medium water in vacuum heat-pipe after, selected nitrogen as charge into inert gas, reinject nitrogen and to make pipe internal pressure value be absolute pressure 199KPa, heat pipe was with regard to not heat exchange when the heat pipe of making like this was lower than 120 ℃ when the heat exchange temperature.
With the heat pipe that this way is made, can control the minimum start-up temperature value of heat pipe easily, also just controlled the lowermost wall surface temperature of heat pipe simultaneously, in the scope of needs, exchange heat to greatest extent for, greatly improve heat exchange efficiency.
Claims (6)
1. the establishing method of heat pipe start-up temperature value, it is characterized in that, the actual temp scope of heat exchange according to actual needs, select the working media corresponding with the heat exchange temperature range, after in heat pipe, being packed into corresponding working media, the air emptying in the heat pipe is charged into inert gas again in heat pipe, make the heat pipe internal pressure reach the force value of the corresponding start-up temperature value of working media correspondence in the heat pipe, with the rear enclosed heat pipe, thereby realize setting heat pipe heat exchanging start-up temperature value.
2. the establishing method of heat pipe start-up temperature value as claimed in claim 1 is characterized in that, described working media is one of three kinds in water, alcohol, medium-acetone.
3. the establishing method of heat pipe start-up temperature value as claimed in claim 2 is characterized in that, described working media, and best is water.
4. the establishing method of heat pipe start-up temperature value as claimed in claim 1 is characterized in that, described inert gas is one of five kinds of nitrogen, argon gas, xenon, helium, radon gas.
5. the establishing method of heat pipe start-up temperature value as claimed in claim 4 is characterized in that, described inert gas, and best is nitrogen.
6. the establishing method of heat pipe start-up temperature value as claimed in claim 1 is characterized in that, described working media is that water, described inert gas are nitrogen, is best combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010217161 CN101881568A (en) | 2010-07-05 | 2010-07-05 | Setting method for heat pipe start-up temperature value |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010217161 CN101881568A (en) | 2010-07-05 | 2010-07-05 | Setting method for heat pipe start-up temperature value |
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| CN101881568A true CN101881568A (en) | 2010-11-10 |
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| CN 201010217161 Pending CN101881568A (en) | 2010-07-05 | 2010-07-05 | Setting method for heat pipe start-up temperature value |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387437A (en) * | 2015-10-30 | 2016-03-09 | 陈俊霖 | Cooling device for LED lamp |
| CN110966881A (en) * | 2019-10-31 | 2020-04-07 | 北京空间机电研究所 | Non-condensable gas accurate doping system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61240094A (en) * | 1985-04-16 | 1986-10-25 | Matsushita Refrig Co | Heat pipe |
| FR2694975A1 (en) * | 1992-08-24 | 1994-02-25 | Transcal | Process for partial filling of cooling tubes for electrical components with liquid - involves introducing gas-free liquid into tubes in evacuated chamber and brazing central stopper screw against ridge of stopper |
| DE20316233U1 (en) * | 2003-10-20 | 2003-12-24 | KF Kühlerbau Freiberg GmbH | Heat exchanger used in the chemical industry and by manufacturers of internal combustion engines, especially diesel engines, comprises a hermetically sealed heating tube filled with a working medium and a gas |
| US20040182551A1 (en) * | 2003-03-17 | 2004-09-23 | Cooligy, Inc. | Boiling temperature design in pumped microchannel cooling loops |
| CN2844830Y (en) * | 2004-12-27 | 2006-12-06 | 徐宝安 | Heat pipe with glass casing |
| GB2427672A (en) * | 2005-06-30 | 2007-01-03 | Siemens Magnet Technology Ltd | A cryogenic cooling arrangement |
-
2010
- 2010-07-05 CN CN 201010217161 patent/CN101881568A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61240094A (en) * | 1985-04-16 | 1986-10-25 | Matsushita Refrig Co | Heat pipe |
| FR2694975A1 (en) * | 1992-08-24 | 1994-02-25 | Transcal | Process for partial filling of cooling tubes for electrical components with liquid - involves introducing gas-free liquid into tubes in evacuated chamber and brazing central stopper screw against ridge of stopper |
| US20040182551A1 (en) * | 2003-03-17 | 2004-09-23 | Cooligy, Inc. | Boiling temperature design in pumped microchannel cooling loops |
| DE20316233U1 (en) * | 2003-10-20 | 2003-12-24 | KF Kühlerbau Freiberg GmbH | Heat exchanger used in the chemical industry and by manufacturers of internal combustion engines, especially diesel engines, comprises a hermetically sealed heating tube filled with a working medium and a gas |
| CN2844830Y (en) * | 2004-12-27 | 2006-12-06 | 徐宝安 | Heat pipe with glass casing |
| GB2427672A (en) * | 2005-06-30 | 2007-01-03 | Siemens Magnet Technology Ltd | A cryogenic cooling arrangement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387437A (en) * | 2015-10-30 | 2016-03-09 | 陈俊霖 | Cooling device for LED lamp |
| CN110966881A (en) * | 2019-10-31 | 2020-04-07 | 北京空间机电研究所 | Non-condensable gas accurate doping system and method |
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