CN2149598Y - Drop-cross-section tubular heat exchanger - Google Patents
Drop-cross-section tubular heat exchanger Download PDFInfo
- Publication number
- CN2149598Y CN2149598Y CN 92219327 CN92219327U CN2149598Y CN 2149598 Y CN2149598 Y CN 2149598Y CN 92219327 CN92219327 CN 92219327 CN 92219327 U CN92219327 U CN 92219327U CN 2149598 Y CN2149598 Y CN 2149598Y
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- drop
- shaped tube
- drop shaped
- cross
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000006578 abscission Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a drop-shaped pipe heat exchanger, in particular to a recuperative heat exchanger whose basic heat transfer element is the drop-shaped pipe. The cross section of the drop-shaped pipe of the heat exchanger is formed by four sections of arc lines. The utility model has the advantages of high heat transfer coefficient, small flow resistance, low operating cost, easy processing, convenient manufacturing, high efficiency, energy saving, and material saving, and is the updated element of the prior and the future pipe heat exchangers.
Description
The utility model is the drop shaped tube heat exchanger.
Technical field is under the utility model: the heat-exchange device that heat exchange medium does not directly contact.
The drop shaped tube heat exchanger is to be the high-efficiency and energy-saving type dividing wall type heat exchanger of basic heat transfer element with drop shaped tube.
It is basic heat transfer element that existing pipe heat exchanger adopts pipe more.But because the fluid from outside cross-current is when crossing pipe, flow condition is not good, portion abscission zone broad, and the average heat transfer coefficient that causes the pipe outside is lower and flow resistance is higher.Afterwards, it is found that the heat transfer of some shape tubes and resistance performance were better than pipe, therefore, in some heat exchanger, begun to use shape tubes such as flat tube and elliptical tube.But still there is the low and high shortcoming of flow resistance of the coefficient of heat transfer in all non-best performance pipe of using of shape tube now, needs further improvement.
The drop shaped tube that the utility model proposed, its cross-sectional profiles line is near streamlined.By theory analysis as can be known, streamlined body has minimum form drag; Therefore, the external drag performance of drop shaped tube is better than other any cast.Simultaneously, theory analysis and experimental result all confirm: fluid is horizontal when plunderring drop shaped tube, under lower Reynolds number, " separate bubble " just can occur and reach " turbulent flow is attached again " phenomenon, and this phenomenon significantly improves the average heat transfer coefficient of drop shaped tube and resistance reduces greatly.In addition, consider easily manufacturedly, drop shaped tube and stream tube are incomplete same again.So drop shaped tube had both had the premium properties of streamline tube, have again and implement characteristics easily, have broad application prospects.
Goal of the invention of the present utility model is to overcome pipe and the shortcoming of other shape tube as heat transfer element the time; Improve the heat transfer coefficient of pipe heat exchanger, reduce flow resistance; Thereby saving tubing reduces operating cost, energy savings.
The cross-sectional profiles line of drop shaped tube is made up of four sections camber lines.Fig. 1 is the drop shaped tube cross sectional representation.Wherein, the radius of curvature of stem camber line is R
1The radius of curvature of afterbody camber line is R
2The radius of curvature of middle two sections camber lines is R
3Distance between the head and the tail two camber line centers of curvature is C.The correlation of each size is: R
1=(12～5) R
2R
3〉=10R
1Comprising R
3Be infinitely-great special circumstances; C=(15～5) R
1Fig. 2 is the operation principle schematic diagram of drop shaped tube heat exchanger.During the work of drop shaped tube heat exchanger, cold and hot fluid flows through the medial and lateral of drop shaped tube respectively.One of type of flow as shown in Figure 2, A represents cold fluid among the figure, B represents hot fluid.
The utility model is implemented convenient, and is easy to manufacture.During enforcement, according to the different application occasion, the material of drop shaped tube can adopt carbon steel, steel alloy (comprising stainless steel, titanium and titanium alloy etc.), copper, aluminium, zinc and alloy thereof, and nonmetallic materials such as graphite (comprising graphite plastic), polytetrafluoroethylene (PTFE), polystyrene, polyvinyl chloride, glass.The drop shaped tube of metal and nonmetallic materials can adopt the special equipment one-shot forming; The also available pipe roll forming of metal drop shaped tube.Drop shaped tube can adopt welding, expanded joint, expanded and welded tube joint to connect with connecting of tube sheet or glued joint.The enforcement of other parts is identical with common pipe heat exchanger.
The utility model is compared with the pipe heat exchanger of present use, has series of advantages: at first be coefficient of heat transfer height; Next is that flow resistance is low; The 3rd is that heat exchange area is big; Be the easy compact arrangement of tube bank once more; Be to have advantages such as the dust stratification amount is few at last.In the reynolds number range of using always in industry, the coefficient of heat transfer of drop shaped tube is higher by about 30% than corresponding pipe; And resistance has only about 1/3rd of pipe.For this reason, if replace the pipe that has now in the heat exchanger with drop shaped tube, its energy-saving effect is significant.With the boiler economizer is example, if the economizer of nearly 300,000 boilers in the whole nation all changes the drop shaped tube heat exchanger into, only considers that then resistance reduces by one, the annual degree more than 1,000,000,000 that just can economize on electricity; Consider that economizer only accounts for the very little part of industrial heat exchange device, consider that the economic benefit of more then using drop shaped tube is huge because the material that the drop shaped tube augmentation of heat transfer is brought is saved.
Claims (1)
1, a kind of heat exchange medium not directly the contact the drop shaped tube heat exchanger, it is characterized in that the cross section of drop shaped tube is made up of four sections camber lines; The radius of curvature R of stem camber line
1Radius of curvature R for the afterbody camber line
21.2 to 5 times, the radius of curvature R of middle two camber lines
3Radius of curvature R for the stem camber line
1More than 10 times, head and the tail two camber line center of curvature spacing C be stem camber line radius of curvature R
11.5 to 5 times, i.e. R
1=(1.2～5) R
2, R
3〉=10R
1, C=(1.5～5) R
1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219327 CN2149598Y (en) | 1992-07-11 | 1992-07-11 | Drop-cross-section tubular heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219327 CN2149598Y (en) | 1992-07-11 | 1992-07-11 | Drop-cross-section tubular heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2149598Y true CN2149598Y (en) | 1993-12-15 |
Family
ID=33766581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92219327 Expired - Lifetime CN2149598Y (en) | 1992-07-11 | 1992-07-11 | Drop-cross-section tubular heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2149598Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943535A (en) * | 2010-09-29 | 2011-01-12 | 浙江金宸三普换热器有限公司 | Oblate pipe and fin structure for parallel flow heat exchanger |
| CN102052876A (en) * | 2010-12-16 | 2011-05-11 | 昆明理工大学 | Novel heat transfer tube for low-temperature flue gas waste heat reclamation |
| CN102538538A (en) * | 2011-11-10 | 2012-07-04 | 华北电力大学 | Resistance-reducing base-tube fin tube bundle of air condenser |
| CN102607313A (en) * | 2012-03-08 | 2012-07-25 | 双良节能系统股份有限公司 | Direct air-cooling condenser finned tube |
| CN102607311A (en) * | 2012-03-08 | 2012-07-25 | 双良节能系统股份有限公司 | Heat exchange base tube for direct air-cooling condenser |
| CN102692144A (en) * | 2012-02-02 | 2012-09-26 | 吴植仁 | Novel flat-tube air cooler |
| CN102865758A (en) * | 2012-08-31 | 2013-01-09 | 大连葆光节能空调设备厂 | Heat exchanger special for sewage source thermal pump |
| CN102878842A (en) * | 2012-10-24 | 2013-01-16 | 中国航天科技集团公司第五研究院第五一0研究所 | Novel initiative jet cooling device |
| CN106288912A (en) * | 2016-08-03 | 2017-01-04 | 海信（山东）空调有限公司 | A kind of micro-channel heat exchanger and air-conditioner |
| CN108240701A (en) * | 2016-12-26 | 2018-07-03 | 美的集团股份有限公司 | Combustion gas liquid heating and gas heater |
| CN111237939A (en) * | 2020-03-05 | 2020-06-05 | 成都医洁净环境科技有限公司 | Cross-contamination-preventing waste heat recycling digital fresh air disinfection unit |
| CN113251828A (en) * | 2021-05-07 | 2021-08-13 | 东南大学 | Water drop grooving type winding pipe type heat exchanger |
| CN113476922A (en) * | 2021-07-29 | 2021-10-08 | 万彪 | Textile printing and dyeing wastewater treatment equipment and treatment method thereof |
-
1992
- 1992-07-11 CN CN 92219327 patent/CN2149598Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943535A (en) * | 2010-09-29 | 2011-01-12 | 浙江金宸三普换热器有限公司 | Oblate pipe and fin structure for parallel flow heat exchanger |
| CN102052876A (en) * | 2010-12-16 | 2011-05-11 | 昆明理工大学 | Novel heat transfer tube for low-temperature flue gas waste heat reclamation |
| CN102538538A (en) * | 2011-11-10 | 2012-07-04 | 华北电力大学 | Resistance-reducing base-tube fin tube bundle of air condenser |
| CN102692144B (en) * | 2012-02-02 | 2016-01-20 | 吴植仁 | A kind of new flat tube air cooler |
| CN102692144A (en) * | 2012-02-02 | 2012-09-26 | 吴植仁 | Novel flat-tube air cooler |
| CN102607313A (en) * | 2012-03-08 | 2012-07-25 | 双良节能系统股份有限公司 | Direct air-cooling condenser finned tube |
| CN102607311A (en) * | 2012-03-08 | 2012-07-25 | 双良节能系统股份有限公司 | Heat exchange base tube for direct air-cooling condenser |
| CN102865758A (en) * | 2012-08-31 | 2013-01-09 | 大连葆光节能空调设备厂 | Heat exchanger special for sewage source thermal pump |
| CN102878842A (en) * | 2012-10-24 | 2013-01-16 | 中国航天科技集团公司第五研究院第五一0研究所 | Novel initiative jet cooling device |
| CN106288912A (en) * | 2016-08-03 | 2017-01-04 | 海信（山东）空调有限公司 | A kind of micro-channel heat exchanger and air-conditioner |
| CN108240701A (en) * | 2016-12-26 | 2018-07-03 | 美的集团股份有限公司 | Combustion gas liquid heating and gas heater |
| CN111237939A (en) * | 2020-03-05 | 2020-06-05 | 成都医洁净环境科技有限公司 | Cross-contamination-preventing waste heat recycling digital fresh air disinfection unit |
| CN113251828A (en) * | 2021-05-07 | 2021-08-13 | 东南大学 | Water drop grooving type winding pipe type heat exchanger |
| CN113476922A (en) * | 2021-07-29 | 2021-10-08 | 万彪 | Textile printing and dyeing wastewater treatment equipment and treatment method thereof |
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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 |