CN2322123Y - Miniature porous board counter-flow heat-exchanger - Google Patents
Miniature porous board counter-flow heat-exchanger Download PDFInfo
- Publication number
- CN2322123Y CN2322123Y CN 97225656 CN97225656U CN2322123Y CN 2322123 Y CN2322123 Y CN 2322123Y CN 97225656 CN97225656 CN 97225656 CN 97225656 U CN97225656 U CN 97225656U CN 2322123 Y CN2322123 Y CN 2322123Y
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- porous plate
- utility
- model
- perforated plates
- heat exchanger
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Abstract
The utility model relates to a miniature perforated plate counterflow heat exchanger which is composed of inner perforated plates, outer perforated plates, etc., wherein, the inner perforated plates and the outer perforated plates are provided with a plurality of through holes. The utility model is characterized in that the utility model also comprises an inner separating pipe which is positioned in an outer sleeve pipe and is coaxially placed with the outer sleeve pipe, the inside of the separating pipe is stacked with a plurality of layers of inner perforated plates in the horizontal spacing, and a plurality of layers of outer perforated plates are stacked between the inner separating pipe and the outer sleeve pipe in the horizontal spacing. The utility model adopts the inner separating pipe with low heat conductivity as a partition wall for a high pressure flow passage and a low pressure flow passage for basically preventing leakage, the utility model does not adopt diffusion welding, and the utility model has the advantages of simple technique, easy realization, high yield, low cost, high bearing ability of operating pressure, big specific surface, small resistance, high heat exchanging rate, etc.
Description
The utility model relates to the heat exchanger in cryogenic technique field, particularly a kind of miniature multiple sub-panels counterflow heat exchanger.
Heat exchanger in the existing minisize refrigeration equipment is at very thin thin-wall stainless steel steel pipe (internal diameter: 0.3mm-1.0mm wall thickness: 0.1mm-0.2mm) twine the rectangle copper fin that thickness is, height is 0.25-0.4mm on the outer wall and form about 0.1mm with Hampson type heat exchanger its structure in the majority, make the heat exchanger of this structure, need special equipment and the technical staff who is skilled in technique the thin-walled copper fin could be stood on the steel pipe of so thin (being equivalent to capillary); Also need special electroplating technology in addition, just can make the root of copper fin and the outer surface of steel pipe reach thermal coupling preferably, therefore, the defective of such heat exchanger is: complex process, difficulty, yield rate is low, cost an arm and a leg, and only be suitable for unit production, and the inner sleeve core is difficult to utilize, therefore specific area is not high, and rate of heat exchange is low.
In recent years, there is a kind of porous plate counterflow heat exchanger to come out, as shown in Figure 1, this heat converter structure: the circular porous plate and annular partition 7 concentric spacings that have many through holes on the several layers surface are piled up, and be welding zone (0.3-1.0mm) with the ring cross-section of partition 7, adopt Diffusion Welding that all partitions and porous plate are welded, form the structure shown in the accompanying drawing 1, porous plate 2 and outer porous plate 3 in promptly the annulus column that forms with partition 7 is divided into circular porous plate, outer porous plate 3 outside suit outer tubes 4.Inside and outside porous plate with thermal conductivity preferably copper sheet make, thickness is (0.3-1.0mm), hole on it forms by corrosion or machined, and partition is made by stainless steel, adopts diffusion technology for welding that all porous plates and partition are welded at interval, its defective is: welding procedure complexity, difficulty, reach by welding and not leak very difficultly fully between the inside and outside high-low pressure runner, so yield rate is very low, difficult quality guarantee, and cost is very expensive, is not suitable for suitability for industrialized production.
The utility model purpose is to overcome many defectives of above-mentioned heat exchanger, provides a kind of simple in structure, and manufacture craft is simplified, and is with low cost, yield rate is high, the miniature porous plate counterflow heat exchanger that heat exchange efficiency is high.
Embodiment of the present utility model is as follows:
The miniature porous plate counterflow heat exchanger that the utility model provides is made up of the inside and outside porous plate, the outer tube that have some through holes, it is characterized in that: it is formed and also comprises interior pipe, interior pipe be positioned at outer tube and with the coaxial placement of outer tube, porous plate in the several layers is piled up in the horizontal interval in the interior pipe, the outer porous plate of several layers is piled up in the horizontal interval between interior pipe and the outer tube, the number of plies of inside and outside porous plate is set according to required heat exchange area size, with thermal conductivity preferably red copper or aluminium make, interior pipe is made with thermal conductivity low stainless steel or titanium alloy.
The utility model is compared with existing porous plate heat exchanger, because the stainless steel of a low heat conductivity of employing or titanium alloy thin-walled tube are as the partition of high and low pressure runner, fundamentally stopped the leakage between the high and low pressure runner, in addition, owing to do not adopt Diffusion Welding, make its manufacture craft simple, easy row, with low cost, the yield rate height, pressure height, the specific area that also has the operation of bearing is big, resistance is little, the rate of heat exchange advantages of higher.
Further describe the utility model below in conjunction with accompanying drawing, embodiment.
Accompanying drawing 1 is the structural representation of porous plate counterflow heat exchanger in the prior art.
Accompanying drawing 2 is a structural representation of the present utility model.
1. porous plate 3. outer porous plate 4. outer tubes in the interior pipe 2.
7. partition
Arrow is the flow direction of heat transferring medium among the figure.
Know by Fig. 2, the miniature porous plate counterflow heat exchanger that the utility model provides comprises: the outer tube 4 of coaxial placement and interior pipe 1, porous plate 2 in the several layers is piled up in the horizontal interval in the interior pipe 1, the outer porous plate 3 of several layers is piled up in the horizontal interval between outer tube 4 and the interior pipe 1, the inside and outside porous plate of present embodiment is 30 layers, interior pipe 1 is made by stainless steel tube, inside and outside porous plate is made by red copper, interior pipe thickness is 0.1-0.2mm, at interior pipe lower end suit choke valve, outer tube 3 lower end suit cold heads just can be made one and contain refrigerator of the present utility model.
Claims (4)
1. miniature porous plate counterflow heat exchanger, form by the inside and outside porous plate that has some through holes, outer tube etc., it is characterized in that: it is formed and also comprises interior pipe, interior pipe be positioned at outer tube and with the coaxial placement of outer tube, porous plate in the several layers is piled up in the horizontal interval in the interior pipe, and the outer porous plate of several layers is piled up in the horizontal interval between interior pipe and the outer tube.
2. by the described miniature porous plate counterflow heat exchanger of claim 1, the pipe material is stainless steel or titanium alloy in it is characterized in that.
3. by the described miniature porous plate counterflow heat exchanger of claim 1, the material that it is characterized in that inside and outside porous plate is red copper or aluminium.
4. by the described miniature porous plate counterflow heat exchanger of claim 1, it is characterized in that the number of plies of inside and outside porous plate is set according to required heat exchange area size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97225656 CN2322123Y (en) | 1997-09-03 | 1997-09-03 | Miniature porous board counter-flow heat-exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97225656 CN2322123Y (en) | 1997-09-03 | 1997-09-03 | Miniature porous board counter-flow heat-exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2322123Y true CN2322123Y (en) | 1999-06-02 |
Family
ID=33939612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97225656 Expired - Lifetime CN2322123Y (en) | 1997-09-03 | 1997-09-03 | Miniature porous board counter-flow heat-exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2322123Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213659B (en) * | 2006-03-31 | 2013-02-06 | 香港应用科技研究院有限公司 | Heat exchange enhancement |
| CN105202960A (en) * | 2015-10-10 | 2015-12-30 | 安陆火凤凰铝材有限责任公司 | Aluminum tube type heat exchanger |
-
1997
- 1997-09-03 CN CN 97225656 patent/CN2322123Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213659B (en) * | 2006-03-31 | 2013-02-06 | 香港应用科技研究院有限公司 | Heat exchange enhancement |
| CN105202960A (en) * | 2015-10-10 | 2015-12-30 | 安陆火凤凰铝材有限责任公司 | Aluminum tube type heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |