CN204787990U - Heat exchange tube on evaporation cooling formula heat exchanger - Google Patents
Heat exchange tube on evaporation cooling formula heat exchanger Download PDFInfo
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- CN204787990U CN204787990U CN201520121610.7U CN201520121610U CN204787990U CN 204787990 U CN204787990 U CN 204787990U CN 201520121610 U CN201520121610 U CN 201520121610U CN 204787990 U CN204787990 U CN 204787990U
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- heat exchanger
- exchanger tube
- tube
- transpiration
- heat exchange
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Abstract
The utility model provides a heat exchange tube on evaporation cooling formula heat exchanger, which comprises a body, the body is the tubulose, the surface of body is equipped with bellied screw thread form stripe. Adopt the utility model discloses can improve the heat transfer efficiency of heat exchanger, save manufacturing cost, reduce the volume of equipment.
Description
Technical field
The utility model relates to the heat exchanger tube on a kind of transpiration-cooled heat exchanger, belongs to mechanical field.
Background technology
The operation principle of transpiration-cooled heat exchanger heat-exchanging tube is in the market as follows: heat exchange pipe external surface is in the membranaceous cooling water flowed down, the high temperature refrigerant gas of discharging from compressor in heat exchanger tube, when cooling water flows through heat exchanger tube, rely on evaporation of water, utilize the latent heat of vaporization of water, make high-temperature gas refrigerant in pipe be condensed into liquid refrigerants.Heat exchanger tube is the light pipe of diameter 25 millimeter, wall thickness 4-5 millimeter, and common material mainly contains seamless steel pipe, aluminum pipe, stainless steel tube are several.But there is problem in above-mentioned transpiration-cooled heat exchanger heat-exchanging tube: first, in the process of cooling water and refrigerant (commonly using as freon) heat exchange, cooling water from heat exchanger tube top spray and, the area having about 25% in the bottom of heat exchanger tube does not have cooling water to flow through, and heat transfer effect is lower; Secondly, refrigerant, in in-tube condensation process, can form one deck liquid film, and the closer to tube wall, flow velocity can be less at inside pipe wall, and the existence of liquid film adds the thermal resistance in pipe between refrigerant and heat exchanger tube; Finally, heat exchange tube wall is thicker and diameter is comparatively large, adds heat transfer resistance.
Utility model content
Utility model object: the purpose of this utility model is to solve above the deficiencies in the prior art, provides a kind of heat exchanger tube that can improve heat exchanger efficiency.
Technical scheme: the heat exchanger tube on transpiration-cooled heat exchanger described in the utility model, comprises body, described body is tubulose, and the outer surface of described body is provided with protruding shape of threads striped.Owing to being provided with shape of threads projection at outer surface, so cooling water is when heat exchange pipe external surface flows, heat exchanger tube bottom can being flow to along shape of threads striped, improve the utilization rate of heat exchange pipe external surface heat exchange area.
In order to solve the problem further, the inner surface of described body is provided with protruding shape of threads striped.The existence of pipe internal thread shape striped adds the turbulent extent of liquid refrigerants, refrigerant is made under capillary effect, to leave heat exchanger tube inner surface and drain, not easily film forming, thus the thickness (this liquid film is unfavorable for heat transfer) reducing liquid film, improve the usefulness of heat exchange.
The internal and external threads shape striped of heat exchanger tube adds the heat exchange area on heat exchanger tube surface simultaneously, so the heat exchanger tube effective heat exchange area of same quantity improves 25%-30%, heat exchange efficiency obviously promotes.
In order to solve the problem further, the thickness of the tube wall of described body is 0.27-1 millimeter.Because the thickness of pipe wall of heat exchange pipe conventional is at present large, about 0.4-0.5 millimeter, makes the heat exchanger efficiency of cooling water and refrigerant low, and the thickness reducing tube wall can greatly improve the usefulness of heat exchange.
In order to solve the problem further, the thickness of described tube wall is 0.36 millimeter, after tube wall is thinning, improves the efficiency of heat exchange.
In order to solve the problem further, the diameter of described body is 6.94-19.05 millimeter.Due to the diameter of pipe wall of heat exchange pipe conventional at present, about 25 millimeters, make the refrigerant of heat exchanger tube center large from the distance of cooling water, heat exchanger efficiency is low, the diameter reducing tube wall can make the refrigerant in whole heat exchanger tube all can carry out heat exchange fully with cooling water, improves the usefulness of heat exchange greatly.Due to the reduction of heat exchanger tube diameter, the heat exchanger tube of identical heat exchange area, the heat exchanger tube volume of pipe with small pipe diameter is less, so utilize novel heat exchanger tube that transpiration-cooled heat exchanger heat exchanger tube quantity used can be made to reduce, heat exchanger overall dimensions reduces, and this just means the cold effect that the machine of same size can reach larger, or the machine of same cold can accomplish less size, reduce manufacture difficulty, reduce material cost.
In order to solve the problem further, the diameter of described body is 9.52 millimeters, and less diameter can make the part that fully can not contact cooling water in body reduce, and improves overall heat exchange property.
In order to solve the problem further, described heat exchanger tube is made up of copper alloy.
In order to solve the problem further, described copper alloy is aldubra, Alpaka or brass.
In order to solve the problem further, described heat exchanger tube is made up of red copper.
The ratio of heat transfer coefficient steel pipe, aluminum pipe etc. of copper pipe are large, identical heat exchange amount, and the weight ratio Steel Pipe Heat Exchanger of copper pipe heat exchanger is light, reduces unit weight, reduces machine cost of transportation and installation requirement.
Beneficial effect: heat exchanger tube described in the utility model, compare common heat exchanger tube, heat exchange efficiency is higher, provides cost savings, and reduces manufacture difficulty.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the heat exchanger tube on current transpiration-cooled heat exchanger,
Fig. 2 is the heat exchanger tube operation principle schematic diagram on current transpiration-cooled heat exchanger,
Fig. 3 is structural representation of the present utility model,
Fig. 4 is fundamental diagram of the present utility model.
Detailed description of the invention
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment, only for explaining the utility model, does not form the restriction to the utility model protection domain.
See Fig. 1-2, cooling water from top to bottom flows through from the outer wall of heat exchanger tube 1, and the refrigerant 2 in heat exchanger tube 1 is failed in the bottom of heat exchanger tube 1 effectively and cooling water carries out heat exchange, causes heat exchanger efficiency low.
See Fig. 3, the outer surface of heat exchanger tube 1 is provided with protruding shape of threads striped 12 in the present embodiment, and inner surface is provided with protruding shape of threads striped 11.Distance geometry cross section size between inner surface and the screw thread of outer surface is unrestricted, can regulate as required.The employing brass of institute's heat exchanger tube 1 is made in the present embodiment, and diameter is 9.52 millimeters, and wall thickness is 0.36 millimeter.Certain heat exchanger tube 1 also can adopt the alloy of red copper or other cuprics to make, the desirable 6.94-19.05 millimeter of size of diameter, the desirable 0.27-1 millimeter of scope of wall thickness.
See Fig. 4, existence due to the shape of threads striped of heat exchanger tube 1 outer surface makes cooling water can stay along it, make the bottom of heat exchanger tube 1 also can contact cooling water fully, the shape of threads striped of inner surface makes refrigerant 2 not easily in heat exchanger tube 1, form liquid film, and sufficient and cooling water carries out heat exchange.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. the heat exchanger tube on a transpiration-cooled heat exchanger, comprise body, described body is tubulose, it is characterized in that: the outer surface of described body is provided with protruding shape of threads striped, the inner surface of described body is provided with protruding shape of threads striped, and the thickness of the tube wall of described body is 0.27-1 millimeter.
2. the heat exchanger tube on transpiration-cooled heat exchanger according to claim 1, is characterized in that: the thickness of described tube wall is 0.36 millimeter.
3. the heat exchanger tube on transpiration-cooled heat exchanger according to claim 1, is characterized in that: the diameter of described body is 6.94-19.05 millimeter.
4. the heat exchanger tube on transpiration-cooled heat exchanger according to claim 3, is characterized in that: the diameter of described body is 9.52 millimeters.
5. the heat exchanger tube on transpiration-cooled heat exchanger according to claim 1, is characterized in that: the heat exchanger tube on described transpiration-cooled heat exchanger is made up of copper alloy.
6. the heat exchanger tube on transpiration-cooled heat exchanger according to claim 5, is characterized in that: described copper alloy is aldubra, Alpaka or brass.
7. the heat exchanger tube on transpiration-cooled heat exchanger according to claim 1, is characterized in that: the heat exchanger tube on described transpiration-cooled heat exchanger is made up of red copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121610.7U CN204787990U (en) | 2015-03-02 | 2015-03-02 | Heat exchange tube on evaporation cooling formula heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121610.7U CN204787990U (en) | 2015-03-02 | 2015-03-02 | Heat exchange tube on evaporation cooling formula heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204787990U true CN204787990U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520121610.7U Active CN204787990U (en) | 2015-03-02 | 2015-03-02 | Heat exchange tube on evaporation cooling formula heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444154A (en) * | 2020-11-25 | 2021-03-05 | 龙口市龙蓬精密铜管有限公司 | Equivalent lightweight internal thread copper pipe and preparation method thereof |
| WO2023284101A1 (en) * | 2021-07-13 | 2023-01-19 | 长鑫存储技术有限公司 | Gas injector and diffusion furnace tube device |
-
2015
- 2015-03-02 CN CN201520121610.7U patent/CN204787990U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444154A (en) * | 2020-11-25 | 2021-03-05 | 龙口市龙蓬精密铜管有限公司 | Equivalent lightweight internal thread copper pipe and preparation method thereof |
| CN112444154B (en) * | 2020-11-25 | 2022-03-22 | 龙口市龙蓬精密铜管有限公司 | Equivalent lightweight internal thread copper pipe and preparation method thereof |
| WO2023284101A1 (en) * | 2021-07-13 | 2023-01-19 | 长鑫存储技术有限公司 | Gas injector and diffusion furnace tube device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |