CN102865761B - A kind of bundling heat pipe heat exchanger - Google Patents
A kind of bundling heat pipe heat exchanger Download PDFInfo
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- CN102865761B CN102865761B CN201210392626.2A CN201210392626A CN102865761B CN 102865761 B CN102865761 B CN 102865761B CN 201210392626 A CN201210392626 A CN 201210392626A CN 102865761 B CN102865761 B CN 102865761B
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Abstract
The invention discloses a kind of bundling heat pipe heat exchanger, primarily of one-level heat pipe heat, secondary heat pipe group and three grades of heat pipe heat, 4-N level heat pipe heat can be made as required; Whole system is divided into condensing zone, adiabatic region and region, three, evaporating area; Described every one-level heat pipe heat be all by identical heat pipe unit parallel with one another form one arrange independently closed conduct, and the mutual lay out in parallel of heat pipe heat at different levels, be assembled in same housing and share an air channel; The flow direction of the wind in described condensing zone and evaporating area is reverse; Cold-producing medium in so every one-level heat pipe is all considered as constant temperature fluid, then multi-stage heat pipe can realize the heat-exchanger rig of alternating temperature effect, and the heat exchange area of every grade of heat exchanger is identical, final exhaust temperature is close to environment temperature, thus improve heat utilization rate to greatest extent, solve the problem that existing heat pipe heat exchanging temperature difference loss is large and total heat exchange efficiency is low.
Description
Technical field
The present invention relates to technical field of heat exchange, specifically, relate to a kind of novel heat pipe heat exchanging system, particularly a kind of bundling heat pipe heat exchanger of many group heat-pipe apparatus lay out in parallel.
Background technology
Heat pipe utilizes sweat cooling exactly, makes heat pipe two ends temperature difference very large, heat is conducted fast, the heat transfer property superior because of it and technical characteristic and be widely used in energy-saving field.At present, heat pipe is usually used in the fields such as equipment cooling, waste heat recovery and VMC.Total driving temperature difference of heat exchange of heat pipe is the temperature difference of evaporator section and condensation segment, the thermostatic characteristics of single-stage heat exchange of heat pipe internal refrigeration storage agent causes heat pipe heat loss large, and the application is the effective way realizing reducing heat transfer temperature difference loss and improving total heat exchange efficiency changing the intermediary with thermostatic characteristics the medium with temperature-changing characteristic into by increase heat pipe progression.Single-stage heat exchange of heat pipe changes multi-level form into, cold-producing medium in every one-level heat pipe is all considered as constant temperature fluid, then multi-stage heat pipe can realize the heat-exchanger rig of alternating temperature effect, and the heat exchange area of every grade of heat exchanger is identical, final exhaust temperature close to environment temperature, thus improves heat utilization rate to greatest extent.
Get now the multi-stage heat pipe heat-exchange system total heat exchange area identical with single-stage hot-pipe system (identical input) to analyze, the heat-transfer capability (number of transfer units is NTU) of every one-level is identical.Assuming that the progression of multi-stage heat pipe heat-exchanger rig is n, and the heat exchange area of every grade of heat exchanger is identical, its number of transfer units is NTU/n, then the efficiency of every grade of heat exchange of heat pipe is all identical, η 1=η 2=...=η n=ε/2, ε=1-exp(-NTU/n), total heat exchange efficiency of multi-stage heat pipe heat-exchanger rig is η=(n* η 1)/[1+ (n-1) * η 1].
Namely by analyzing the efficiency of multi-stage heat pipe heat-exchanger rig, can obtain:
1) as given progression n, when NTU trends towards infinity, η 1=1/2, overall heat exchange efficiency eta=n/ (n+1);
2) as given NTU, when progression n trends towards infinity, overall heat exchange efficiency eta=NTU/ (NTU+2);
3) when progression n, NTU are tending towards infinity, overall heat exchange efficiency eta → 1.
Can find out that single-stage heat exchange of heat pipe changes multi-level form into by above-mentioned analysis, when overall heat exchange area is identical, decreases heat transfer temperature difference loss, improve total heat exchange efficiency.
Summary of the invention
A kind of novel heat pipe technology provided by the invention---a kind of bundling heat pipe heat exchanger, exactly total in order to solve the problem that when current driving force heat pipe works, heat transfer temperature difference loss is large and heat exchange efficiency is low.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
A kind of bundling heat pipe heat exchanger, comprises heat pipe unit, radiating fin, condensing zone, adiabatic region, evaporating area, the one-level heat pipe heat be made up of multiple heat pipe, secondary heat pipe group and three grades of heat pipe heat, can make 4-N level heat pipe heat as required; Such whole system has many heat pipe unit assembled arrangement to form, and total row determines the progression of multi-stage heat pipe heat-exchange system, and total columns determines the number of every one-level heat pipe of multi-stage heat pipe heat-exchange system; Described one-level heat pipe heat, secondary heat pipe group, three grades of heat pipe heat and 4-N level heat pipe heat be all respectively by identical heat pipe parallel with one another form one arrange independently closed conduct, and the mutual lay out in parallel of heat pipe heat at different levels, is assembled in same housing and shares an air channel; The heat pipe heat of described every one-level be all respectively by identical heat pipe parallel with one another form one arrange independently closed conduct, the top of each root heat pipe of its every one-level and bottom use a transverse tube conducting successively respectively, such guarantee every one-level heat pipe has a common pressure reduction, makes the total amount of the refrigeration working medium of each root heat pipe unit substantially keep equal; Described heat pipe unit is the good metal tube of thermal conductivity; In described condensing zone and evaporating area, the flow direction of wind is reverse.
Each row's radiating fin of the above every one-level heat pipe heat can be that the independent radiating fin separated completely between level and level is formed, and also can be an overall radiating fin.
Each row's radiating fin of the above every one-level heat pipe heat can be an overall radiating fin, but to separate with heat insulation seam between the radiating fin of heat pipe heat at different levels, mainly play the heat-blocking action between heat pipe heat at different levels.
The above adiabatic region is an adiabatic cutoff board.
Wind direction in the above condensing zone and air channel, evaporating area is contrary, also can be other fluids, but the flow direction of fluid is reverse, and direction is perpendicular to heat pipe unit, is parallel to radiating fin in its passage.
The refrigeration working medium filled in every one-level of the above one-level heat pipe heat, secondary heat pipe group, three grades of heat pipe heat and 4-N level heat pipe heat is single refrigeration working medium, different levels can be filled with different refrigeration working mediums as required, and when its work runs, heat pipe heat at different levels is independent of each other mutually.
When the above multi-stage heat pipe heat-exchange system normally works, evaporation and condensation are carried out continuously, are divided into following link from principle: gasification, and---condensation---is returned liquid---and is gasified; The heat pipe heat heated fluid at different levels effect of the evaporating area of such whole system, along wind direction heat-exchange temperature at different levels from high to low, and also become staged to reduce through the fluid temperature (F.T.) of the heat pipe heat at different levels of evaporating area, the heat pipe heat of condensing zone is caught a cold fluid matasomatism, along wind direction heat-exchange temperature at different levels from low to high, and also becoming staged to raise through the fluid temperature (F.T.) of the heat pipe heat at different levels of condensing zone, final exhaust temperature close to environment temperature, thus improves heat utilization rate to greatest extent.
Compared with prior art, by making single heat pipe unit, parallel connection is a row in the present invention, forms one-level heat pipe heat, can unify to vacuumize, and unification is filled with refrigeration working medium; The intermediary with thermostatic characteristics can be changed into by the design increasing heat pipe progression the effective way that the medium with temperature-changing characteristic realizes reducing heat transfer temperature difference loss and improving total heat exchange efficiency, not only increase the heat exchange efficiency that every secondary device circulates a week, and achieve the stability of whole system circulation, increase substantially the heat exchange efficiency of heat pipe, and whole system apparatus structure used is simple, environmental friendliness, is adapted to the heat exchange that two kinds have temperature difference fluids.
Accompanying drawing explanation
Fig. 1 is the structural representation of this system.
Fig. 2 is the side structure schematic diagram of this system.
Fig. 3 is this system integration radiation fin structure schematic diagram.
In figure: (1) heat pipe unit; (11) one-level heat pipe heat; (12) secondary heat pipe group; (13) three grades of heat pipe heat; (2) radiating fin; (21) heat insulation seam; (22) bore a hole; (3) evaporating area; (4) adiabatic region; (5) condensing zone.
Detailed description of the invention
This embodiment simple structure schematic diagram as shown in Figure 1; The system and device agent structure related to when the present embodiment realizes comprises heat pipe unit (1), one-level heat pipe heat (11), secondary heat pipe group (12), three grades of heat pipe heat (13), radiating fin (2), heat insulation seam (21), perforation (22), evaporating area (3), adiabatic region (4) and condensing zones (5), and whole system can make 4-N level heat pipe heat as required; During this system worked well, evaporation and condensation are carried out continuously, are divided into following link from principle: gasification, and---condensation---is returned liquid---and is gasified.
1). by thermal evaporation under the vapour-liquid interface in liquid refrigerant evaporating area:
Hot fluid is after evaporating area (5) outer wall, and evaporating area (5) interior working media heat absorption becomes gaseous working medium from liquid refrigerant, and is full of whole evaporating area (5), and steam expansion diffuses to condensing zone (3).
2). the vapour-liquid interface of steam in condensing zone condenses:
Condensing zone (5) under cold fluid effect, till gaseous working medium is condensed to and is cooled to liquid state.
3). condensed hydraulic fluid is back to evaporating area:
Condensing zone working medium becomes drop or liquid film in cold fluid effect condensation, under the effect such as gravity, capillary force, be back to evaporating area.
4). evaporating area working medium is heated and is gasified:
Evaporating area working medium is heated and is gasified, moves in circles.
Namely the working medium (the general boiling temperature of this working medium is all lower) in whole system evaporating area (5) heated fluid effect heat pipe is absorbed heat and after reaching boiling point, working medium is evaporated to steam rapidly, because the density of steam is little, cooling heat release is also condensed into liquid, because the density of liquid is large, and because of the internal face wettability of heat pipe good, therefore return to evaporating area (5) along wall is dirty, can again evaporate again; So constantly circulation, passes to the other end by heat from one end.
The heat pipe heat at different levels (11 of the evaporating area (5) of such whole system; 12; 13) heated fluid effect, along wind direction heat-exchange temperature at different levels from high to low, and through the heat pipe heat at different levels (11 of evaporating area (5); 12; 13) fluid temperature (F.T.) also becomes staged to reduce, the heat pipe heat at different levels (11 of condensing zone (3); 12; 13) to catch a cold fluid matasomatism, along wind direction heat-exchange temperature at different levels from low to high, and through the heat pipe heat at different levels (11 of condensing zone (3); 12; 13) fluid temperature (F.T.) also becomes staged to raise, and final exhaust temperature close to environment temperature, thus improves heat utilization rate to greatest extent.
Claims (3)
1. a bundling heat pipe heat exchanger, comprises heat pipe unit (1), radiating fin (2), condensing zone, adiabatic region and evaporating area; It is characterized in that, also comprise be made up of multiple heat pipe unit one-level heat pipe heat (11), secondary heat pipe group (12) and three grades of heat pipe heat (13), make 4-N level heat pipe heat as required, such whole system has many heat pipe unit assembled arrangement to form, total row determines the progression of multi-stage heat pipe heat-exchange system, and total columns determines the number of every one-level heat pipe unit of multi-stage heat pipe heat-exchange system; Described one-level heat pipe heat (11), secondary heat pipe group (12), three grades of heat pipe heat (13) and 4-N level heat pipe heat be all respectively by identical heat pipe unit parallel with one another form one arrange independently closed conduct, and heat pipe heat at different levels (11; 12; 13) mutual lay out in parallel, is assembled in same housing and shares an air channel; The heat pipe heat (11 of described every one-level; 12; 13) be all respectively by identical heat pipe unit parallel with one another form one arrange independently closed conduct, its every one-level heat pipe heat (11; 12; 13) top of each root heat pipe unit and bottom use a heat-conducting metal transverse tube conducting successively respectively, ensure every one-level heat pipe heat (11 like this; 12; 13) there is the pressure reduction that one common, make the total amount of the refrigeration working medium of each root heat pipe unit substantially keep equal; Described heat pipe unit (1) is the good metal tube of thermal conductivity; Described every one-level heat pipe heat (11; 12; 13) each row's radiating fin (2) is that the independent radiating fin separated completely between level and level is formed, or the radiating fin that overall, but separate with heat insulation seam (21) between the radiating fin of heat pipe heat at different levels, mainly play the heat-blocking action between heat pipe heat at different levels; The heat pipe heat (11 of described every one-level; 12; 13) refrigeration working medium filled in is single refrigeration working medium, and different levels is filled with different refrigeration working mediums as required, and when its work runs, heat pipe heat at different levels is independent of each other mutually; In described condensing zone and evaporating area, the flow direction of wind is reverse.
2. a kind of bundling heat pipe heat exchanger according to claim 1, is characterized in that, described adiabatic region is an adiabatic cutoff board.
3. a kind of bundling heat pipe heat exchanger according to claim 1, is characterized in that, the wind direction in described condensing zone and air channel, evaporating area is contrary, also can be other fluids in its passage, but the flow direction of fluid is reverse, and direction is perpendicular to heat pipe unit, be parallel to radiating fin place plane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210392626.2A CN102865761B (en) | 2012-10-17 | 2012-10-17 | A kind of bundling heat pipe heat exchanger |
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| CN201210392626.2A CN102865761B (en) | 2012-10-17 | 2012-10-17 | A kind of bundling heat pipe heat exchanger |
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| CN102865761A CN102865761A (en) | 2013-01-09 |
| CN102865761B true CN102865761B (en) | 2016-01-27 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103868383A (en) * | 2014-03-25 | 2014-06-18 | 北京环都人工环境科技有限公司 | Heat pipe exchanger with heat insulation section |
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| CN2334005Y (en) * | 1998-07-08 | 1999-08-18 | 重庆大学 | Assembly regenerable steel-water hot-pipe heat exchanger |
| CN2720383Y (en) * | 2004-07-21 | 2005-08-24 | 侯祺 | Cluster type heat radiator |
| CN2814303Y (en) * | 2005-06-30 | 2006-09-06 | 中国石化集团巴陵石油化工有限责任公司 | Heat tube heat exchanger |
| CN101922878A (en) * | 2010-08-11 | 2010-12-22 | 上海贝电实业股份有限公司 | Modularized heat pipe air heat exchanger |
| CN202915779U (en) * | 2012-10-17 | 2013-05-01 | 北京德能恒信科技有限公司 | Beam concentration type heat pipe exchanger |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3020790B2 (en) * | 1993-12-28 | 2000-03-15 | 株式会社日立製作所 | Heat pipe type cooling device and vehicle control device using the same |
| CN2490539Y (en) * | 2001-06-06 | 2002-05-08 | 泰州春兰空调器厂 | Low heat transfer loss heat exchanger |
| CN101666589B (en) * | 2009-09-23 | 2010-12-01 | 上海交通大学 | Combined heat pipe exchanger |
| CN202041044U (en) * | 2011-04-27 | 2011-11-16 | 国家海洋局第三海洋研究所 | Spray drying waste heat recycling device |
-
2012
- 2012-10-17 CN CN201210392626.2A patent/CN102865761B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2334005Y (en) * | 1998-07-08 | 1999-08-18 | 重庆大学 | Assembly regenerable steel-water hot-pipe heat exchanger |
| CN2720383Y (en) * | 2004-07-21 | 2005-08-24 | 侯祺 | Cluster type heat radiator |
| CN2814303Y (en) * | 2005-06-30 | 2006-09-06 | 中国石化集团巴陵石油化工有限责任公司 | Heat tube heat exchanger |
| CN101922878A (en) * | 2010-08-11 | 2010-12-22 | 上海贝电实业股份有限公司 | Modularized heat pipe air heat exchanger |
| CN202915779U (en) * | 2012-10-17 | 2013-05-01 | 北京德能恒信科技有限公司 | Beam concentration type heat pipe exchanger |
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| CN102865761A (en) | 2013-01-09 |
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Address after: 100041 Beijing, Badachu hi tech park, West Wells Road, building 9415, room 3, No., room 3 Patentee after: Beijing Science and Technology Co., Ltd. Germany To Hanson Address before: 100041 Beijing, Badachu hi tech park, West Wells Road, building 9415, room 3, No., room 3 Patentee before: Beijing Science and Technology Co., Ltd. Germany to Hanson |