CN101303184A - High-efficiency evaporation and condensation casing heat exchanger - Google Patents
High-efficiency evaporation and condensation casing heat exchanger Download PDFInfo
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- CN101303184A CN101303184A CNA2008100398776A CN200810039877A CN101303184A CN 101303184 A CN101303184 A CN 101303184A CN A2008100398776 A CNA2008100398776 A CN A2008100398776A CN 200810039877 A CN200810039877 A CN 200810039877A CN 101303184 A CN101303184 A CN 101303184A
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Abstract
The invention discloses a highly effective heat exchanger of evaporation-condensation sheathed tube type, which comprises two tubes with different diameters; an inner tube adopts an externally-finned nickel brass tube or a copper tube, and the two tubes are able to transmit heat by enforcement; an outer tube adopts a smooth cooper tube or a steel tube; the small section of a capillary tube is padded between the inner tube and the outer tube at different positions along length direction and on different angles along circumferential direction; when the sheathed tube is bent into serpentine tubes with different diameters according to the requirements; the capillary tube on the inner tube has a function of supporting the outer tube; two ends of the inner tube and the outer tube are welded. The highly effective heat exchanger of the invention is characterized by simple process, small resistance of refrigerant and water side, overcoming the defect of the existing sheathed tube type heat exchanger being unable to have both good condensing heat exchange effect and evaporating heat exchange effect, realizing the enforcement of condensing heat exchange as well as evaporating heat exchange, thus meeting the double high efficiency requirement of condensation and evaporation heat exchange of a sheathed tube type heat exchanger for a small-sized air-water air-conditioning heat pump unit.
Description
Technical field
The present invention relates to a kind of heat exchanger, be specifically related to a kind of high-efficiency casing formula heat exchanger that is used for condensation and evaporation and heat-exchange.
Background technology
HEAT PUMP TYPE WATER CHILLERS is a kind of idle call source pump of the most generally using, and it is by evaporating and condensing heat-exchange between cold-producing medium and the water that two heat exchangers, the work of one of them heat exchanger are arranged in this heat pump work.The kind of this heat exchanger mainly contains three kinds of shell-tube type, board-like and bushing types, and wherein double pipe heat exchanger is used for the less HEAT PUMP TYPE WATER CHILLERS of capacity.Pipe is several light pipes that diameter is less in the double pipe heat exchanger commonly used, and its heat transfer property is lower, and the main increase heat exchange area that relies on improves the heat exchange amount, brings water side flow resistance big thus, and is not easy to clean after using a period of time.Pipe uses bellows and internal and external threads pipe in having in some heat exchangers in addition, though this heat exchanger heat transfer efficient increases, but general condensing heat-exchange effect is all right, the evaporation and heat-exchange effect is relatively poor, this just directly causes air-water air conditioner and heat pump unit heating effect when heating relatively poor, heating capacity is low under the particularly low water temperature, adopts electrical heating to compensate, and has strengthened energy consumption.
Summary of the invention
The objective of the invention is in order to solve existing double pipe heat exchanger, because water side flow resistance that its internal structure caused is big, be not easy to clean,, the evaporation and heat-exchange effect is relatively poor, and especially heating capacity is low under low water temperature, need electrical heating to compensate, increase drawbacks such as energy consumption.The present invention proposes small air-water air conditioner and heat pump unit evaporation and condensation casing heat exchanger that a kind of interior pipe adopts outer finned tube and is welded with the capillary supporting pad, this double pipe heat exchanger can make evaporation and heat-exchange and condensing heat-exchange all be strengthened.
Technical scheme of the present invention is: a kind of air-water air-conditioning heat pump evaporation and condensation casing heat exchanger, it comprises two different tube diameters pipes, it is characterized in that: between interior pipe and outer tube, go up along its length diverse location with along being lined with a bit of capillary on the circumferentially different angles, capillary is welded on the inner tube outer surface, when sleeve pipe curves the helix tube of different-diameter as required, capillary on the interior pipe plays the supporting role to outer tube, and interior pipe and outer tube two ports adopt and are welded.
Pipe adopts the outer wing ambrose alloy pipe or the copper tube of augmentation of heat transfer in described, and described outer tube adopts bare copper tube or steel pipe.
Pipe and outer tube two ports adopt big or small three-way connection to be welded in described, and lower port refrigerant line interface is directed downwards, and upper port refrigerant line interface direction upwards.
The installation employing level of the technical program middle sleeve formula heat exchanger is installed.
Characteristics of the present invention are that processing is simple, cold-producing medium and water collateral resistance are little, it is effective to have overcome existing double pipe heat exchanger or condensing heat-exchange, evaporation and heat-exchange is effective, can not the two shortcoming of taking into account, realized both having strengthened condensing heat-exchange, improved the evaporation and heat-exchange effect again, satisfied of the dual efficiently requirement of small air-water air conditioner and heat pump unit double pipe heat exchanger condensation and evaporation and heat-exchange.
Description of drawings
Fig. 1 is air conditioner and heat pump unit of the present invention high-efficiency evaporation and condensation casing heat exchanger profile schematic diagram;
Fig. 2 is the generalized section of air conditioner and heat pump unit of the present invention with high-efficiency evaporation and condensation casing heat exchanger.
1, outer tube, 2, interior pipe, 3, the water lines lower port, 4, the refrigerant line lower port, 5, the water lines upper port, 6, the refrigerant line upper port, 7, liquid refrigerant, 8, capillary
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail; but present embodiment is not limited to the present invention; the various distortion of profile of every employing analog structure of the present invention and similar variation, particularly double pipe heat exchanger all should be listed protection scope of the present invention in.
Evaporation and condensation casing heat exchanger of the present invention as shown in Figure 1, the refrigerant gas of high temperature, high pressure enters in the inner and outer pipes chuck of this double pipe heat exchanger from refrigerant line upper port 6 when air-water air conditioner and heat pump unit is freezed, carry out heat exchange with the water that flows to from water lines lower port 3 in the interior pipe 2, refrigerant gas is condensed into liquid and flows out from refrigerant line lower port 4, and heated water flows out from water lines upper port 5.When air-the cold-producing medium vapour-liquid two-phase fluid of low temperature, low pressure entered in the inner and outer pipes chuck of this double pipe heat exchanger when the water air conditioner and heat pump unit heated from refrigerant line lower port 4, carry out heat exchange with the water that flows to from water lines lower port 3 in the interior pipe 2, cold-producing medium vapour-liquid two-phase fluid flashes to gas and flows out from refrigerant line upper port 6, and the water that is cooled flows out from water lines upper port 5.Generally have two pipes double pipe heat exchanger the cross section as shown in Figure 2, pipe 2 adopts bellows and internal and external threads pipe in this heat exchanger, condensing heat-exchange effect to cold-producing medium improves, but when the cold-producing medium evaporation and heat-exchange,, the gas-liquid two-phase cold-producing medium has gravity and the centrifugal force that turns round because flowing 1 of interior pipe 2 and outer tube, liquid refrigerant 7 can not reach maximum contact area with interior pipe 2 outer walls, and the evaporation and heat-exchange effect is relatively poor.The cross section of high-efficiency evaporation and condensation casing heat exchanger of the present invention as shown in Figure 3, pipe 2 adopts the outer wing ambrose alloy pipe (or copper tube) of augmentation of heat transfer in the double pipe heat exchanger of the present invention, improved the condensing heat-exchange effect effectively, between interior pipe 2 and outer tube 1, go up along its length in addition diverse location with along being lined with a bit of capillary 8 on the circumferentially different angles, capillary 8 is welded on the outer surface of interior pipe 2, when sleeve pipe curves the helix tube of different-diameter as required, capillary 8 on the interior pipe 2 plays the supporting role to outer tube 1, pipe 2 is fixed on a certain obliquity in making, this angle of inclination can reach at utmost the liquid refrigerant 7 and the contact area of interior pipe 2, thereby has improved evaporation heat transfer coefficient greatly.Realized both having strengthened condensing heat-exchange like this, improved the evaporation and heat-exchange effect again greatly, satisfied of the dual efficiently requirement of small air-water air conditioner and heat pump unit double pipe heat exchanger condensation and evaporation and heat-exchange.
Claims (4)
1, a kind of high-efficiency evaporation and condensation casing heat exchanger, it comprises two different tube diameters pipes, it is characterized in that: between interior pipe and outer tube, go up along its length diverse location with along being lined with a bit of capillary on the circumferentially different angles, capillary is welded on the inner tube outer surface, and interior pipe and outer tube two ports adopt and are welded.
2, high-efficiency evaporation and condensation casing heat exchanger according to claim 1 is characterized in that: pipe adopts the outer wing ambrose alloy pipe or the copper tube of augmentation of heat transfer in described, and described outer tube adopts bare copper tube or steel pipe.
3, high-efficiency evaporation and condensation casing heat exchanger according to claim 1 is characterized in that: interior pipe and outer tube two ports adopt big or small three-way connection to be welded, and lower port refrigerant line interface is directed downwards, and upper port refrigerant line interface direction upwards.
4, idle call high-efficiency evaporation and condensation casing heat exchanger according to claim 1 is characterized in that: the installation employing level of double pipe heat exchanger is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100398776A CN101303184A (en) | 2008-06-30 | 2008-06-30 | High-efficiency evaporation and condensation casing heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100398776A CN101303184A (en) | 2008-06-30 | 2008-06-30 | High-efficiency evaporation and condensation casing heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101303184A true CN101303184A (en) | 2008-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100398776A Pending CN101303184A (en) | 2008-06-30 | 2008-06-30 | High-efficiency evaporation and condensation casing heat exchanger |
Country Status (1)
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| CN (1) | CN101303184A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574285A (en) * | 2013-11-05 | 2014-02-12 | 国鸿液化气机械工程（大连）有限公司 | High-pressure LNG (liquefied natural gas) gasification heater |
| CN104748442A (en) * | 2015-04-04 | 2015-07-01 | 邹立峰 | Air source heat pump device |
| CN110425911A (en) * | 2019-08-30 | 2019-11-08 | 中国科学院理化技术研究所 | A kind of three media heat exchangers |
| CN110425910A (en) * | 2019-08-30 | 2019-11-08 | 中国科学院理化技术研究所 | Double pipe heat exchanger, heat-exchange method and preparation method thereof |
-
2008
- 2008-06-30 CN CNA2008100398776A patent/CN101303184A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574285A (en) * | 2013-11-05 | 2014-02-12 | 国鸿液化气机械工程（大连）有限公司 | High-pressure LNG (liquefied natural gas) gasification heater |
| CN104748442A (en) * | 2015-04-04 | 2015-07-01 | 邹立峰 | Air source heat pump device |
| CN110425911A (en) * | 2019-08-30 | 2019-11-08 | 中国科学院理化技术研究所 | A kind of three media heat exchangers |
| CN110425910A (en) * | 2019-08-30 | 2019-11-08 | 中国科学院理化技术研究所 | Double pipe heat exchanger, heat-exchange method and preparation method thereof |
| CN110425910B (en) * | 2019-08-30 | 2024-04-05 | 中国科学院理化技术研究所 | Double-pipe heat exchanger, heat exchange method and manufacturing method thereof |
| CN110425911B (en) * | 2019-08-30 | 2024-04-19 | 中国科学院理化技术研究所 | Three-medium heat exchanger |
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Open date: 20081112 |