CN1240927A - Method for making heat-exchange element capable of increasing efficiency of heat exchange - Google Patents
Method for making heat-exchange element capable of increasing efficiency of heat exchange Download PDFInfo
- Publication number
- CN1240927A CN1240927A CN 99109670 CN99109670A CN1240927A CN 1240927 A CN1240927 A CN 1240927A CN 99109670 CN99109670 CN 99109670 CN 99109670 A CN99109670 A CN 99109670A CN 1240927 A CN1240927 A CN 1240927A
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- China
- Prior art keywords
- heat
- heat exchange
- clipped wire
- exchange elements
- mould
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/18—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes sintered
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A heat-exchanging element having high heat exchange efficiency is made up of metal particles with high heat conductivity through putting the metal particles into mould, vibrating to make metal particles close to each other, sintering to melt the contact points between adjacent particles, cooling and demoulding. Obtained heat exchanging element is full of the metal particles, between which there are numerous irregular seams for higher heat-exchanging area and efficiency.
Description
The present invention relates to a kind of preparation method of heat exchange elements, relate to a kind of preparation method that improves the heat exchange elements of heat exchanger effectiveness or rather.
General heat exchange elements mostly is to make fin or conducting strip with aluminium, when air communication is crossed fin on the fin, owing to only on the fin surface heat transfer effect takes place its surface temperature is descended, so heat exchange area is little, heat exchanger effectiveness is low; And at fluid by conducting strip during with fluid heat transferring, be with the outer tube heat radiation of tube fluid to heating, because fluid velocity is very fast, the position that heat exchange takes place only is the position that fluid contacts with tube wall, and fluid temperature (F.T.) causes its internal convection effect not stablize because of the portion of hot exchange, low when time thes be high, be unfavorable for industry or domestic consumer's use.
The objective of the invention is to design a kind of preparation method that improves the heat exchange elements of heat exchanger effectiveness, make with this method produced heat radiation or heat conducting element to have the high characteristics of heat exchanger effectiveness.
The object of the present invention is achieved like this: a kind of preparation method that improves the heat exchange elements of heat exchanger effectiveness is characterized in that comprising:
A. press the shape of heat exchange elements and make mould;
B. clipped wire is poured in the mould and vibration;
C. mould is placed in the sintering oven and heat, make the mutual clinkering of contact point between clipped wire;
D. the cooling back demoulding.
Described clipped wire is the clipped wire with high thermal conductivity coefficient.
Described clipped wire is shot copper or stainless steel grit.
The present invention is a material with the clipped wire of high thermal conductivity coefficient, in sintering oven, make the contact point welding between clipped wire and become one, formed irregular slit becomes the passage of heat conduction between clipped wire, and the clipped wire of mutual welding just becomes the path of heat conduction, at air-flow or fluid during by the slit between clipped wire, just can obtain the effect of heat exchange rapidly, and the slit between clipped wire also increases the area of heat exchange, thereby improved the efficient of heat exchange greatly.Therefore,, no matter be used for the heat exchange of any purposes, can both shuttle back and forth and fluid when passing through the beneficial effect that obtain to increase heat exchange area, improves heat exchanger effectiveness at air-flow with splendid thermal conductivity of clipped wire self and the slit that is produced with the clipped wire sintering.
The shape of mould can design by heat exchange elements required shape or its application places, the effect of vibration is to make the contact between clipped wire more tight, heating can make the mutual clinkering of contact point between clipped wire and be integral in sintering oven, and produce irregular slit between clipped wire and clipped wire, again after cooling and demolding, promptly form one be covered with mutually combine between clipped wire, clipped wire and clipped wire between be formed with irregular slit, can increase the heat exchange elements of heat exchange area.When air-flow or fluid pass through this slit, increase heat exchange area by heat conduction between clipped wire and the heat exchange that occurs between numerous slit, reach the purpose that improves heat exchanger effectiveness.During enforcement, can change the size and the material of clipped wire according to the purposes of heat exchange elements, the heat exchange elements that just can obtain to have required big small gap behind sintering is to be suitable for the fluid of different nature under different places or the purposes or the heat conduction of air-flow.
Further specify technology of the present invention below in conjunction with embodiment and accompanying drawing
Fig. 1 is the making schematic process flow diagram of heat exchange elements of the present invention
Fig. 2 is the perspective view with a kind of heat exchange elements of the inventive method making
Fig. 3 is the perspective view with the another kind of heat exchange elements of the inventive method making
Referring to Fig. 1, method of the present invention is a material with the high clipped wire B of thermal conductivity factor, as shot copper or stainless steel grit etc.The shape of heat exchange elements is by its field of employment and Position Design, and mould A then presses the shaped design of required heat exchange elements.Earlier clipped wire B is poured in the mould A; For avoiding clipped wire B in mould A, to produce arch formation, and need vibrate C (vibratory compaction step), make clipped wire B in mould A, contact with each other more closely mould A; Again mould A is pushed in the sintering oven D and heat, make the mutual clinkering E of contact point (heating clinkering step) between clipped wire B; Demoulding F (moulding cooling and demolding step) again after the cooling of heat exchange elements after to be formed, and form one be covered with between clipped wire B and clipped wire B mutually combine, with respect to the heat exchange elements that is formed with irregular slit between clipped wire B, as shown in Fig. 2, Fig. 3, reach the purpose of design that increases heat exchange area.
Referring to Fig. 2, one has the fin 1 that custom is used shape shown in the figure, and fin 11 is handled through heat-agglomerating with clipped wire B and made contact point 111 mutual clinkering postforming on it, is formed with the slit 12 of irregular distribution between each clipped wire B.Because each fin 11 and base plate 112 sintering weldings, when on fin 1 being applied to computer inside or other electrical equipment and with fan, dispelling the heat, base plate 112 can be pasted and touch on parts to be dispelled the heat, through the heat conduction of base plate 112 and thermal source is distributed on each clipped wire B of each fin 11 on the fin 1, use fan again to the heat radiation of blowing of this fin 11, make cooling blast pass through slit 12 between each clipped wire B, obtain the effect of heat exchange.The purpose of design that realize increasing heat exchange area, improves heat exchanger effectiveness.
Referring to Fig. 3, in sintering oven, make the contact point clinkering between clipped wire, can heat exchange elements be made different shapes by its purposes.Heat exchange elements rod 2 as shown in Figure 3, B ' forms after clinkering with clipped wire, can be used for the heat exchange of fluid.Heat exchange elements rod 2 is placed in the metal tube, and contact with metal pipe-wall, metal tube is outward then by the work heating, reach the heat exchange elements rod 2 in the pipe through metal tube heat conduction, its temperature rise is to be evenly distributed on each clipped wire B ', heat exchange all can take place during by the slit between each clipped wire B ' in fluid, has not only improved heat exchanger effectiveness and has made the temperature of output fluid uniform and stable.
Heat exchange elements with method made of the present invention, can suitably change the size and the material of clipped wire by its purposes, behind sintering, can obtain the slit 12 of required size and be suitable for fluid of different nature or air-flow heat conduction, use for different places or purposes, to enlarge range of application of the present invention.
In sum, the present invention is a material with the clipped wire of high thermal conductivity coefficient, use the copper sintering, make the mutual clinkering of contact point between clipped wire and clipped wire, and formation has the heat exchange elements in numerous irregular slit, by the conductive force of itself heat is evenly distributed on each clipped wire, when air-flow or fluid shuttle back and forth in the slit, can carries out heat exchange fully, increase heat exchange area and improve heat exchanger effectiveness.
Claims (3)
1. the preparation method that can improve the heat exchange elements of heat exchanger effectiveness is characterized in that comprising;
A. press the shape of heat exchange elements and make mould;
B. clipped wire is poured in the mould and vibration;
C. mould is placed in the sintering oven and heat, make the mutual clinkering of contact point between clipped wire;
D. the cooling back demoulding.
2. a kind of preparation method that improves the heat exchange elements of heat exchanger effectiveness according to claim 1 is characterized in that: described clipped wire is the clipped wire with high thermal conductivity coefficient.
3. a kind of preparation method that improves the heat exchange elements of heat exchanger effectiveness according to claim 1 and 2 is characterized in that: described clipped wire is shot copper or stainless steel grit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99109670 CN1240927A (en) | 1999-07-05 | 1999-07-05 | Method for making heat-exchange element capable of increasing efficiency of heat exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99109670 CN1240927A (en) | 1999-07-05 | 1999-07-05 | Method for making heat-exchange element capable of increasing efficiency of heat exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1240927A true CN1240927A (en) | 2000-01-12 |
Family
ID=5274069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99109670 Pending CN1240927A (en) | 1999-07-05 | 1999-07-05 | Method for making heat-exchange element capable of increasing efficiency of heat exchange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1240927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175438A (en) * | 2008-05-23 | 2013-06-26 | 达纳加拿大公司 | Method for forming apparatus used as turbulizer or rib |
-
1999
- 1999-07-05 CN CN 99109670 patent/CN1240927A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175438A (en) * | 2008-05-23 | 2013-06-26 | 达纳加拿大公司 | Method for forming apparatus used as turbulizer or rib |
| CN101586928B (en) * | 2008-05-23 | 2013-11-13 | 达纳加拿大公司 | Turbulizers and method for forming same |
| CN103175438B (en) * | 2008-05-23 | 2015-05-13 | 达纳加拿大公司 | Method for forming apparatus used as turbulizer or rib |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |