CN1690159A - Phase-transition liquid for copper heat pipe - Google Patents
Phase-transition liquid for copper heat pipe Download PDFInfo
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- CN1690159A CN1690159A CN 200510078244 CN200510078244A CN1690159A CN 1690159 A CN1690159 A CN 1690159A CN 200510078244 CN200510078244 CN 200510078244 CN 200510078244 A CN200510078244 A CN 200510078244A CN 1690159 A CN1690159 A CN 1690159A
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- heat pipe
- phase
- transition liquid
- copper
- heat
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Abstract
The invention discloses a heated copper pipe phrase change solution, which solves the environmental pollution problem of prior heated pipe. The material of the heated pipe is copper, inside which the temperature is 100-300 Deg.C; the phrase change solution is prepared by the following materials with volume percentage: common tap water for 35-78 percent, potable spirit with 20-60 alcohol degree for 20-60 percent, glycerin for 1-3 percent, fat salt solution for 0.05-2 percent. The invention is environmental protection, since it takes substance of edible range replace traditional medium -phrase change solution in the heated pipe by toxic and harmful substance.
Description
The present invention is dividing an application of " heat pipe phase-transition liquid " application for a patent for invention:
The original bill applying date: on March 18th, 2003
Original bill application number: 03107804.4
Original bill invention and created name: heat pipe phase-transition liquid
Technical field the present invention relates to the working medium of heat pipe in the thermal engineering.
Background technology is present, the phase-transition liquid that uses in the conventional heat pipe technology, the overwhelming majority is poisonous, deleterious inorganic chemical industry material, though can obtain the superperformance of " efficient, energy-conservation ", but in the manufacturing, transportation and storage, use and use in the link such as back destruction etc., can break unavoidably, nature or contingent such as leakage, cause the injury of human body and the pollution of environment, in foodstuffs industry and food-processing, can not use simultaneously.Useful aluminium and aluminum alloy materials be as scatterer in the prior art, because the aluminum alloy materials fatal characteristics of salt tolerant, alkali not itself, coating for protection against corrosion is protected in just adopting, and effect is unsatisfactory; This is because in the big system of hot-water heating, be in the heat recirculated water of saline alkali, having a certain amount of hard particles unavoidably exists, recirculated water at high-voltage high-speed washes away down, preservative coat than vulnerable area must corrode cavitation so by quick-wearing very as long as recirculated water one touches the aluminium matter part of scatterer essence, leaking will very fast generation.Electroplating process when doing coating for protection against corrosion often causes severe contamination to environment.
Summary of the invention the purpose of this invention is to provide a kind of phase-transition liquid for copper heat pipe, to solve existing heat pipe product contamination problem of environment.
Heat pipe material of the present invention is copper, temperature is 100～300 ℃ in the heat pipe, phase-transition liquid comprises the raw material of following volumn concentration, and 35～78% ordinary tap water, 20～60% alcoholic strength are the saturated solution of 20～60 type of the drinking liquor of spending, 1～3% glycerine, 0.05～2% salt.
Compound method: with distilled water salt is made saturated solution earlier, each raw material is mixed getting final product then under 10～15 ℃ of envrionment temperatures.
Heat pipe phase-transition liquid of the present invention, the temperature of the heat pipe that can use according to reality, the difference of material are selected 4～10 kinds of raw materials for use, just can satisfy the heat pipe use below 1000 ℃.
Selection in the component of the present invention is mainly considered to utilize: the good characteristics of heat conduction interconvertibility of water; Edible vegetable oil is suitable for temperature more than 500 ℃, and thermal conductivity is big, prevents the hydrogenization of phase-transition liquid in the high temperature in stainless steel and steel heat pipe; The good characteristics of heat conduction phase transformation security of liquor; The phase transformation performance of dehydrated alcohol is good, improves the phase-transition liquid performance; Glycerine increases phase velocity and lubrication when high temperature; The thermal capacity of salt is big, and the high temperature thermal conductivity is good; Gentian voiet plays anticorrosion spike effect; Tinctura camphorae can improve the interconvertibility of phase-transition liquid; Edible-type aluminium hydroxide can improve interconvertibility, accelerates phase-transition liquid by the phase transformation of gas to liquid; That other component plays is anticorrosion, spike, improve the effect of smell.
Heat-pipe radiator with aluminum alloy material is an example, and scatterer is made an integral heat pipe, and the inside charges into a certain amount of working medium (phase-transition liquid), makees a copper logical hot-water line in its underpart, and the recirculated water in the hot-water heating passes through from copper pipe.Thereby recirculated water and aluminum alloy material are separated completely, when circulating hot water passes through copper pipe, copper pipe is heated, the while heating working medium, make the Working fluid phase changing vaporization, the high-temperature steam of vaporization is full of entire radiator rapidly with supersonic speed, after the heat radiation of the outer wall of scatterer, be phase-changed into liquid again along the heat radiation wall and under action of gravity, flow to the heating copper tube of bottom, be transformed into gas once more after absorbing the heat of copper pipe, heat is passed to the inwall of scatterer again, the circulation that goes round and begins again like this, as long as copper pipe is hot, this process just goes on automatically, heat transfer efficiency is high, and the bottom highest temperature zone and the top minimum temperature district temperature difference are less than 3 ℃.Because the phase-transition liquid non-corrosiveness, coating for protection against corrosion in so just need not requiring again to do in scatterer has reduced cost.
The present invention is owing to utilize all materials in the food grade scope commonly used in the life, replace using in the conventional heat pipe technology by the working medium-phase-transition liquid in poisonous, the objectionable impurities institute synthetic heat pipe, can reach the purpose of environmental protection, adopt the present invention to make heat pipe, both can obtain the superperformance of " efficient, energy-conservation " of conventional heat pipe, again can be in the manufacturing, transportation and storage, use and use on the link such as back destruction etc., guarantee that the person and environmental safety and opposite heat tube material do not have corrosion.Use hot pipe technique of the present invention, have been widely used, for example often its pocketed heat when grain is stacked, at this moment the heat pipe that just the present invention can be made inserts in the grain heap heat is discharged, and also can not cause damage just in case there is accidental cause that phase-transition liquid for copper heat pipe is revealed; And it is just more extensive in Application in Food Industry.
Utilize heat pipe supersonic heat transfer characteristics and be operated under the molecule phase transformation process of liquid-gas-liquid (promptly by) pattern, the characteristics that heat in the electric energy is given full play of, saved the energy greatly, according to the difference of envrionment temperature, reducing power consumption is in 20%～59% scope.
In the experiment, done four kind 20 with the present invention surplus a heat pipe, done two heat pipes with traditional chemical industry material (methyl alcohol, acetone), after tested, on spirit lamp, heat simultaneously, through 30.5 seconds heat pipes heat all with the present invention heat pipe of doing and the heat pipe of making of conventional matter; Put into the 95 hot water heating of spending 28 seconds, two kinds of also hot simultaneously tops of arriving of contrast heat pipe illustrate that heat-transfer rate is equally fast, and superior heat conductivity can be the same.But conventional heat pipe cost height, and smoked in the mill people are not also hurted sb.'s feelings and the heat pipe cost of making of the present invention is low.
The control experiment table
| The heat pipe that the present invention makes | The heat pipe that tradition phase-transition liquid (methyl alcohol, acetone) is made | Effect | |
| 95 ° of heating in water bath | From 28 seconds 15～60 ℃ of times spent | From 28 seconds 15～60 ℃ of times spent | Identical |
| The spirit lamp heating | From 30.5 seconds 10～60 ℃ of times spent | From 30.50 seconds 10～60 ℃ of times spent | Identical |
| Common copper tube | Diameter of phi=8 millimeter, long 40 millimeters | Diameter of phi=8 millimeter, long 40 millimeters | Identical |
The embodiment the following examples can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.
Embodiment 1:
Temperature is 0～100 ℃ in heat pipe, when the heat pipe material is aluminium alloy, is configured to phase-transition liquid by 70 milliliters ordinary tap water, 29.99 milliliters dehydrated alcohol and 0.01 milliliter gentian voiet.
Embodiment 2:
Temperature is 100～300 ℃ in heat pipe, when the heat pipe material is copper, is configured to phase-transition liquid by 75 milliliters of ordinary tap water, 20 milliliter of 60 type of drinking liquor, 3 milliliters of glycerine, 2 milliliters of iodized salt (saturated solution) of spending.
Embodiment 3:
Temperature is 300～500 ℃ in heat pipe, when the heat pipe material is stainless steel, be that 45 degree are drunk the essential balm of buying in the Liushen toilet water bought in type liquor, 28 milliliters of dehydrated alcohols, 1.996 milliliters of edible-type aluminium hydroxide, the 0.002 milliliter of market, the 0.002 milliliter of pharmacy and are configured to phase-transition liquid by 35 ml distilled waters, 5 milliliters of edible vegetable oils, 30 ml ethanol degree.
Embodiment 4:
Temperature is 500～900 ℃ in heat pipe, when the heat pipe material is steel, drinks type liquor, 60 milliliters of dehydrated alcohols, 0.5 milliliter of gentian voiet, 1.5 milliliters of tinctura camphoraes (being dissolved in the saturated solvent of alcohol) and be configured to phase-transition liquid by 20 milliliters of edible vegetable oils, 18 milliliter of 56 degree.
Claims (1)
1, a kind of phase-transition liquid for copper heat pipe, it is characterized in that: the heat pipe material is copper, temperature is 100～300 ℃ in the heat pipe, phase-transition liquid comprises the raw material of following volumn concentration, and 35～78% ordinary tap water, 20～60% alcoholic strength are the saturated solution of 20～60 type of the drinking liquor of spending, 1～3% glycerine, 0.05～2% salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510078244 CN1690159A (en) | 2003-03-18 | 2003-03-18 | Phase-transition liquid for copper heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510078244 CN1690159A (en) | 2003-03-18 | 2003-03-18 | Phase-transition liquid for copper heat pipe |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031078044A Division CN1305996C (en) | 2003-03-18 | 2003-03-18 | Heat pipe phase changing liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1690159A true CN1690159A (en) | 2005-11-02 |
Family
ID=35345920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510078244 Pending CN1690159A (en) | 2003-03-18 | 2003-03-18 | Phase-transition liquid for copper heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1690159A (en) |
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2003
- 2003-03-18 CN CN 200510078244 patent/CN1690159A/en active Pending
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