CN2274333Y - Curved flat coiled-pipe of heat-exchanger - Google Patents
Curved flat coiled-pipe of heat-exchanger Download PDFInfo
- Publication number
- CN2274333Y CN2274333Y CN 97232498 CN97232498U CN2274333Y CN 2274333 Y CN2274333 Y CN 2274333Y CN 97232498 CN97232498 CN 97232498 CN 97232498 U CN97232498 U CN 97232498U CN 2274333 Y CN2274333 Y CN 2274333Y
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- pipe
- flat
- utility
- model
- straight
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a curved flat coiled-pipe of a heat-exchanger, which is composed of an inlet pipe, an outlet pipe, a plurality of straight pipes and revolving bent pipes. The utility model is characterized in that the straight pipe and the revolving bent pipe are provided with a flat cross-section which is composed of two parallel opposite sides and arcs at the both ends, and the flattening is 1.2-3.0. Meanwhile, the straight pipe and the revolving bent pipe are provided with an integral structure without connection ends, and the inclined included angle alpha of a flat coiled-pipe between two straight pipes is 0.5-2 DEG. The utility model has the advantages of simple structure, low cost and convenient assemblage. Meanwhile, the air-stream resistance is little, the condensation effect is good, so the flow capacity of flowing heat exchange medium in the coiled-pipe can be kept in a constant level, and the utility model can get maximum heat transfer.
Description
The utility model relates to general technical field of heat exchange, especially relates to a kind of crooked shape coil pipe condenser heat exchange, that have flattened cross-sectional that is used for.
At present, China is used for the most of round tube that adopts of fixed-piping of heat exchange, and the advantage of this pipeline is that processing and fabricating is simple, and is easy for installation.Yet a large amount of facts have proved, the shortcoming of the maximum of this circular pipe is bigger to the resistance ratios of fan airflow, and effectively heat transfer area is little, thereby poor to the condensation effect of liquid steam flow.For reducing the resistance of coil pipe to air-flow, improve heat radiation, condensation effect, need improve the shape of coil pipe.Chinese patent discloses a kind of oblong-shaped disc Manifold technology, coil pipe is processed into to have oval-shaped cross section exactly.The advantage of this coil pipe is that significantly it can reduce the resistance of pipe to air draught to greatest extent theoretically, thereby improves the liquid fluid at ducted heat radiation, condensation effect.But the sweep in the coil pipe to be processed into ellipsoidal structure, its difficulty is very big, so this oval coil pipe can only be made oval straight tube and circular winding pipe two parts of split, and adopt the mode of the assembling of pegging graft to connect, and in a coil pipe series, need to adopt many this return bend syndetons and consequent many connections end.Effect from the reality use, the disadvantage of this oval coil pipe straight tube and return bend just is not to make the unitary whole structure, so not only increased the cost of coil pipe and the complexity of making, and the contact of pipeline is increased, the latency of pipe leakage strengthens, thereby the practicality of this coil pipe is affected.
The purpose of this utility model with regard to be to propose at the deficiencies in the prior art a kind of little to gas-flow resistance, coefficient of heat transfer is high, processing and fabricating is simple, straight tube and close pattern bend are the flat coil pipe of crooked shape of one.
The purpose of this utility model is achieved in that
The flat coil pipe of the crooked shape of this heat exchanger, form by inlet tube, outlet, several straight tube and close pattern bend, between straight tube and the close pattern bend for not being connected the overall structure of end, straight tube and the cross section of close pattern bend are that to have that two parallel opposite side and two ends camber line constitute, ellipticity be 1.2～3.0 flat tube, and the slanted angle α between crooked shape flat disc piping two straight tube is 0.5 °～2 °; As required, the flat ratio of close pattern bend can be suitably less than the flat ratio of straight tube.
The utility model advantage compared with prior art:
The one, simplified coil arrangement.Owing to adopted to be different from oval-shaped flat tube structure, and straight tube and close pattern bend made integrative-structure, simplified production process, reduced cost of manufacture, make heat exchanger more convenient when assembling simultaneously.
The 2nd, improved condensation effect.Owing to will keep certain inclination angle between two straight tubes, the flow of the heat-exchange medium that flows in the coil pipe can be remained on the constant level.Adopt the flat tube structure simultaneously, reduced the resistance of body effectively, make the liquid steam flow that flows in the pipe obtain maximum heat transmission air-flow.
Below in conjunction with an embodiment and accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the B-B cut-away view of Fig. 1;
Fig. 3 is the A-A cut-away view of Fig. 1;
Fig. 4 is inlet tube and outlet structural representation.
As shown in drawings, the utility model is by inlet tube (1), outlet (4), the flat coil pipe that is 5 crooked shapes that straight tube (2) and close pattern bend (3) are formed, the cross section of the inlet tube (1) and outlet (4) mouth of pipe is circular, mouth of pipe minister 100mm, between straight tube (2) and the close pattern bend (3) for not being connected the overall structure of end, straight tube (2) is the flat tube with two parallel opposite side (5) and two ends camber line (6) formation with the cross section of close pattern bend (3), the ellipticity of straight tube (2) is 2.2, the ellipticity of close pattern bend (3) is 1.8, crooked about 179 ° of close pattern bend (3) body, the slanted angle α between crooked shape flat disc piping two straight tubes (2) is 1.0 °.
Claims (4)
1, the flat coil pipe of the crooked shape of a kind of heat exchanger, form by inlet tube (1), outlet (4), several straight tube (2) and close pattern bend (3), it is characterized in that: between straight tube (2) and the close pattern bend (3) for not being connected the overall structure of end, that straight tube (2) and close pattern bend (3) all have is that two parallel opposite side (5) and two ends camber line (6) constitute, ellipticity is 1.2～3.0 flattened cross-sectional, and the slanted angle α between crooked shape flat disc piping two straight tubes (2) is 0.5 °～2 °.
2, the flat coil pipe of the crooked shape of heat exchanger according to claim 1, it is characterized in that said straight tube (2) cross section for have two parallel opposite side (5) and two ends camber line (6) formation, ellipticity is 2.2 flat tube.
3, the flat coil pipe of the crooked shape of heat exchanger according to claim 1, it is characterized in that said close pattern bend (3) cross section for have two parallel opposite side (5) and two ends camber line (6) formation, ellipticity is 1.8 flat tube.
4, the flat coil pipe of the crooked shape of heat exchanger according to claim 1, it is characterized in that said close pattern bend (3) cross section for have two parallel opposite side (5) and two ends camber line (6) formation, ellipticity is 1.5 flat tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97232498 CN2274333Y (en) | 1997-03-28 | 1997-03-28 | Curved flat coiled-pipe of heat-exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97232498 CN2274333Y (en) | 1997-03-28 | 1997-03-28 | Curved flat coiled-pipe of heat-exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2274333Y true CN2274333Y (en) | 1998-02-11 |
Family
ID=33944290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97232498 Expired - Fee Related CN2274333Y (en) | 1997-03-28 | 1997-03-28 | Curved flat coiled-pipe of heat-exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2274333Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738122B (en) * | 2009-12-14 | 2011-12-21 | 杭州沈氏换热器有限公司 | Coiled tube and heat exchanger applying same |
| CN112797673A (en) * | 2021-02-22 | 2021-05-14 | 深圳市爱康生物科技有限公司 | Novel refrigeration plate evaporator and manufacturing method thereof |
-
1997
- 1997-03-28 CN CN 97232498 patent/CN2274333Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738122B (en) * | 2009-12-14 | 2011-12-21 | 杭州沈氏换热器有限公司 | Coiled tube and heat exchanger applying same |
| CN112797673A (en) * | 2021-02-22 | 2021-05-14 | 深圳市爱康生物科技有限公司 | Novel refrigeration plate evaporator and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |