CN88200519U - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN88200519U CN88200519U CN 88200519 CN88200519U CN88200519U CN 88200519 U CN88200519 U CN 88200519U CN 88200519 CN88200519 CN 88200519 CN 88200519 U CN88200519 U CN 88200519U CN 88200519 U CN88200519 U CN 88200519U
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- CN
- China
- Prior art keywords
- heat exchanger
- utility
- model
- fin
- square tube
- Prior art date
- 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.)
- Withdrawn
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Disclosed is a heat exchanger which is widely applied in present is mainly provided with a shell-and-tube heat exchanger, the heat-transfer efficiency of unit volume is lower, and thermal energy is incapable of being fully utilized. The utility model provides a fin-tube heat exchanger. Because the heat transfer area of the utility model is improved fundamentally, compared with the shell-and-tube heat exchanger by unit volume, the utility model fully utilizes the thermal energy. The fin-tube heat exchanger is widely used for machining all agricultural and sideline products which are required being dried. The utility model has the advantages of high quality and low cost. Particularly, the utility model is capable of being arbitrarily combined to suit for different requirements of number and has wide range of popularization.
Description
The utility model belongs to the agricultural-product drying technology.
According to domestic interrelated data introduction, the present heat exchanger that widely adopts, mostly be shell and tube, its heat transfer coefficient is: 4.187～209(KJ/mhK), and the heat system that gives of finned type heat exchanger is: 125～1256(KJ/mhK) this be enough to illustrate that the heat transfer efficiency of shell and tube is low, heat energy fails to make full use of.
In view of the foregoing, the objective of the invention is: provide a kind of unit volume heat transfer area big, the heat exchanger that heat exchange efficiency is high is to reach making full use of of heat energy.
For realizing above-mentioned task, the present invention adopts the square tube combining structure, and two symmetrical outside of square tube make fin shape, and heating surface area is increased, and the inwall of square tube makes the inner fin vertical with outside fin, and inside and outside fin forms the cross-flow structure.Therefore, gas or fluid form strong turbulent flow when passing through the inner fin of square tube, and the boundary layer constantly is damaged, thereby has reduced thermal resistance effectively, so, having improved efficient, heat energy is fully used.For improving the service life of heat exchanger, Silel cast iron casting during the square tube element adopts.Because heat exchanger element one-tenth heat exchanger capable of being combined by increasing or reducing parts number, can obtain the series of products of various heat exchange amount, can adapt to the needs of varying number agricultural-product processing.Sawtooth and corrugated except that making the fin shape, also can be made in the interior outside of square tube, and its heat exchange efficiency can be higher.
Description of drawings: accompanying drawing is the heat exchanger of four square tube element combinations, through air blast cold air is sent in the square tube, because outer tube is a high temperature, the cold air that passes through is subjected to high temperature to become hot-air, thereby material is dried.
Claims (3)
1, the heat exchanger of dryer is characterized in that two symmetrical outside of each square tube make fin shape by some square tube element combinations, and the square tube inwall makes the fin vertical with outside fin, and inside and outside fin becomes the cross-current type structure.
2, heat exchanger according to claim 1 is characterized in that the surfaces externally and internally of square tube also can make sawtooth and wave-like.
3,, it is characterized in that the square tube element casts with medium cast iron according to claim 1 and 2 described heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88200519 CN88200519U (en) | 1988-01-16 | 1988-01-16 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88200519 CN88200519U (en) | 1988-01-16 | 1988-01-16 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88200519U true CN88200519U (en) | 1988-11-09 |
Family
ID=4835935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88200519 Withdrawn CN88200519U (en) | 1988-01-16 | 1988-01-16 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88200519U (en) |
-
1988
- 1988-01-16 CN CN 88200519 patent/CN88200519U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |