CN102865761A - Clustered type heat pipe heat exchanger - Google Patents
Clustered type heat pipe heat exchanger Download PDFInfo
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- CN102865761A CN102865761A CN2012103926262A CN201210392626A CN102865761A CN 102865761 A CN102865761 A CN 102865761A CN 2012103926262 A CN2012103926262 A CN 2012103926262A CN 201210392626 A CN201210392626 A CN 201210392626A CN 102865761 A CN102865761 A CN 102865761A
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Abstract
The invention discloses a clustered type heat pipe heat exchanger which mainly comprises a first-grade heat pipe set, a second-grade heat pipe set and a third-grade heat pipe set, wherein the first-grade heat pipe set, the second-grade heat pipe set and the third-grade heat pipe set can be formed to be a four-N-grade heat pipe set as required; the whole system is divided into a condensing area, an insulation area and an evaporating area; the heat pipe set at each grade is structured as a row of independent sealed pipelines formed by connecting heat pipe units in parallel, and the numbers of heat pipe units to form the independent sealed pipelines for the heat pipe sets at different grades are the same, moreover, the heat pipe sets at various grades can be arranged side by side, and assembled into one same housing and share one air channel; the flowing directions of the air in the condensing area and the evaporating area are opposite, so that a refrigerant in the heat pipe at each grade can be served as the constant temperature liquid, then a heat exchanging device with the temperature varying effect can be achieved with the heat pipes at various grades; and furthermore, the heat exchangers at different grades have the same heat exchanging area, and the final discharge temperature is close to the environmental temperature, so that the heat utilization rate can be improved to the maximum; and the problems of high heat temperature difference loss and low whole heat exchanging efficiency of the traditional heat pipe heat exchanger can be solved.
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 many group heat-pipe apparatus are put the bundling heat pipe heat exchanger that forms side by side.
Background technology
Heat pipe utilizes sweat cooling exactly, so that heat pipe two ends temperature difference is very large, heat is conducted fast, because its superior heat transfer property and technical characteristic are 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.The temperature difference that total driving temperature difference of heat exchange of heat pipe is evaporator section and condensation segment, the thermostatic characteristics of single-stage heat exchange of heat pipe internal refrigeration storage agent causes the heat pipe heat loss large, and it is the effective way that realizes reducing the heat transfer temperature difference loss and improve total heat exchange efficiency that the application changes the medium with temperature-changing characteristic at the intermediary that will have thermostatic characteristics by increasing heat pipe progression.The single-stage heat exchange of heat pipe changes multistage form into, cold-producing medium in every one-level heat pipe all is considered as constant temperature fluid, then multi-stage heat pipe can be realized 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, thereby improves to greatest extent heat utilization rate.
Get now the multi-stage heat pipe heat-exchange system total heat exchange area (identical input) identical with the single-stage hot-pipe system and analyze, the heat-transfer capability of every one-level (number of transfer units is NTU) is identical.The progression of supposing the 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 efficient 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 the efficient of multi-stage heat pipe heat-exchanger rig is analyzed, 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) as progression n, when NTU is tending towards infinity, overall heat exchange efficiency eta → 1.
Can find out that by above-mentioned analysis the single-stage heat exchange of heat pipe changes multistage form into, in the situation that the overall heat exchange area is identical, reduce the heat transfer temperature difference loss, improve total heat exchange efficiency.
Summary of the invention
Exactly a kind of novel heat pipe technology provided by the invention---a kind of bundling heat pipe heat exchanger is total in order to solve the problem that the loss of current driving force heat pipe when work heat transfer temperature difference 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, by one-level heat pipe heat, secondary heat pipe group and three grades of heat pipe heat that a plurality of heat pipes form, can make as required 4-N level heat pipe heat; Whole system has many heat pipe unit assembled arrangement to consist of like this, 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 all be respectively by identical heat pipe parallel with one another consist of one arrange independently closed conduct, and heat pipe heat at different levels are put mutually side by side, are assembled in and share an air channel in the same housing; The heat pipe heat of described every one-level all be respectively by identical heat pipe parallel with one another consist of one arrange independently closed conduct, a successively conducting of transverse tube is used respectively in the top of each root heat pipe of its every one-level and bottom, guarantee that so 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 preferably metal tube of thermal conductivity; The flow direction of wind is reverse in described condensing zone and the evaporating area.
Each row's radiating fin of the above every one-level heat pipe heat can be that the independent radiating fin that separates fully between level and the level consists of, and also can be the radiating fin of an integral body.
What each of the above every one-level heat pipe heat was arranged radiating fin can be the radiating fin of an integral body, but separates with heat insulation seam between the radiating fin of heat pipe heat at different levels, mainly is the heat-blocking action that plays between the heat pipe heat at different levels.
The above adiabatic region is the cutoff board of a thermal insulation.
Wind direction in the above condensing zone and the evaporating area air channel is opposite, also can be other fluids in its passage, but the flow direction of fluid is reverse, and perpendicular direction is parallel to radiating fin in heat pipe unit.
The refrigeration working medium that fills 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 heat pipe heat at different levels are independent of each other mutually during its work operation.
---again gasification that condensation---is returned liquid---that during the above multi-stage heat pipe heat-exchange system normal operation, evaporation and condensation are carried out continuously, are divided into following link from principle: gasification; The like this heat pipe heat heated fluid at different levels effect of the evaporating area of whole system, along wind direction heat-exchange temperatures at different levels from high to low, and the fluid temperature (F.T.) of the heat pipe heat at different levels of process evaporating area also becomes staged to reduce, the heat pipe heat of condensing zone is subjected to the cold fluid effect, along wind direction heat-exchange temperatures at different levels from low to high, and the fluid temperature (F.T.) through the heat pipe heat at different levels of condensing zone also becomes staged to raise, and final exhaust temperature is close to environment temperature, thereby improves to greatest extent heat utilization rate.
The present invention compared with prior art, by making single heat pipe unit, parallel connection is a row, forms the one-level heat pipe heat, can unify to vacuumize, the unified refrigeration working medium that is filled with; Intermediary with thermostatic characteristics can be changed into the effective way that the medium with temperature-changing characteristic is realized reducing the heat transfer temperature difference loss and improved total heat exchange efficiency by the design that increases heat pipe progression, not only improved the circulate heat exchange efficiency in a week of every secondary device, and realized the stability of whole system circulation, increase substantially the heat exchange efficiency of heat pipe, and used whole system apparatus structure is simple, environmental friendliness is adapted to two kinds of heat exchange that temperature difference fluids is arranged.
Description of drawings
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.
Among the 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) perforation; (3) evaporating area; (4) adiabatic region; (5) condensing zone.
The specific embodiment
This embodiment simple structure schematic diagram as shown in Figure 1; The system and device agent structure that the present embodiment relates to when realizing 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 zone (5), and whole system can be made 4-N level heat pipe heat as required;---again gasification that condensation---is returned liquid---that when this system worked, evaporation and condensation were carried out continuously, are divided into following link from principle: gasification.
1). the gasification of being heated under the vapour-liquid interface in the liquid refrigerant evaporating area:
Hot fluid is behind evaporating area (5) outer wall, and the interior working media heat absorption of evaporating area (5) becomes gaseous working medium by 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) is under the cold fluid effect, and gaseous working medium is condensed to and is cooled to till the 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, is back to evaporating area under the effects such as gravity, capillary force.
4). evaporating area working medium is heated and is gasified:
Evaporating area working medium is heated and is gasified, moves in circles.
Be after working medium (the general boiling temperature of this working medium is all lower) in whole system evaporating area (5) the heated fluid effect heat pipe is absorbed heat and reached boiling point, working medium is evaporated to rapidly steam, because the density of steam is little, the cooling heat release also is condensed into liquid, because the density of liquid is large, and because the internal face wettability of heat pipe is good, therefore along the dirty evaporating area (5) of returning of wall, can again evaporate again; So constantly circulation is passed to the other end with heat from an end.
The such heat pipe heat at different levels (11 of the evaporating area of whole system (5); 12; 13) heated fluid effect, along wind direction heat-exchange temperatures at different levels from high to low, and the heat pipe heat at different levels (11 of process 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) be subjected to the cold fluid effect, along wind direction heat-exchange temperatures at different levels from low to high, and the heat pipe heat at different levels (11 of process condensing zone (3); 12; 13) fluid temperature (F.T.) also becomes staged to raise, and final exhaust temperature is close to environment temperature, thereby improves to greatest extent heat utilization rate.
Claims (6)
1. a bundling heat pipe heat exchanger comprises heat pipe unit (1), radiating fin (2), condensing zone (2), adiabatic region (4) and evaporating area (5); It is characterized in that, also comprise the one-level heat pipe heat (11), secondary heat pipe group (12) and the three grades of heat pipe heat (13) that are formed by a plurality of heat pipe unit, can make as required 4-N level heat pipe heat, whole system has many heat pipe unit assembled arrangement to consist of like this, 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 all be respectively by identical heat pipe unit parallel with one another consist of one arrange independently closed conduct, and heat pipe heat at different levels (11; 12; 13) mutually put side by side, be assembled in and share an air channel in the same housing; The heat pipe heat (11 of described every one-level; 12; 13) all be respectively by identical heat pipe unit parallel with one another consist of one arrange independently closed conduct, its every one-level heat pipe heat (11; 12; A successively conducting of heat-conducting metal transverse tube is used respectively in the top of each root heat pipe unit 13) and bottom, guarantees so every one-level heat pipe heat (11; 12; 13) a common pressure reduction is arranged, make the total amount of the refrigeration working medium of each root heat pipe unit substantially keep equal; Described heat pipe unit (1) is preferably metal tube of thermal conductivity; The flow direction of described condensing zone (3) and the interior wind of evaporating area (5) is reverse.
2. a kind of bundling heat pipe heat exchanger according to claim 1 is characterized in that, described every one-level heat pipe heat (11; 12; 13) each row's radiating fin (2) can be that the independent radiating fin that separates fully between level and the level consists of, and also can be the radiating fin of an integral body.
3. a kind of bundling heat pipe heat exchanger according to claim 2 is characterized in that, described every one-level heat pipe heat (11; 12; What 13) each was arranged radiating fin (2) can be the radiating fin of an integral body, but separates with heat insulation seam (21) between the radiating fin of heat pipe heat at different levels, mainly is the heat-blocking action that plays between the heat pipe heat at different levels.
4. a kind of bundling heat pipe heat exchanger according to claim 1 is characterized in that, described adiabatic region (4) is the cutoff board of a thermal insulation.
5. a kind of bundling heat pipe heat exchanger according to claim 1, it is characterized in that, wind direction in described condensing zone (3) and evaporating area (5) air channel is opposite, also can be other fluids in its passage, but the flow direction of fluid is reverse, and perpendicular direction is parallel to plane, radiating fin place in heat pipe unit.
6. a kind of bundling heat pipe heat exchanger according to claim 1, it is characterized in that, the refrigeration working medium that fills in every one-level of 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 is single refrigeration working medium, different levels can be filled with different refrigeration working mediums as required, and heat pipe heat at different levels are independent of each other mutually during its work operation.
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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 true CN102865761A (en) | 2013-01-09 |
| CN102865761B CN102865761B (en) | 2016-01-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| JPH07190655A (en) * | 1993-12-28 | 1995-07-28 | Hitachi Ltd | Heat pipe type cooling device |
| CN2334005Y (en) * | 1998-07-08 | 1999-08-18 | 重庆大学 | Assembly regenerable steel-water hot-pipe heat exchanger |
| CN2490539Y (en) * | 2001-06-06 | 2002-05-08 | 泰州春兰空调器厂 | Low heat transfer loss 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 |
| CN101666589A (en) * | 2009-09-23 | 2010-03-10 | 上海交通大学 | Combined heat pipe 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 |
| CN202041044U (en) * | 2011-04-27 | 2011-11-16 | 国家***第三海洋研究所 | Spray drying waste heat recycling device |
| 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 |
-
2012
- 2012-10-17 CN CN201210392626.2A patent/CN102865761B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07190655A (en) * | 1993-12-28 | 1995-07-28 | Hitachi Ltd | Heat pipe type cooling device |
| CN2334005Y (en) * | 1998-07-08 | 1999-08-18 | 重庆大学 | Assembly regenerable steel-water hot-pipe heat exchanger |
| CN2490539Y (en) * | 2001-06-06 | 2002-05-08 | 泰州春兰空调器厂 | Low heat transfer loss 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 |
| CN101666589A (en) * | 2009-09-23 | 2010-03-10 | 上海交通大学 | Combined heat pipe 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 |
| CN202041044U (en) * | 2011-04-27 | 2011-11-16 | 国家***第三海洋研究所 | Spray drying waste heat recycling device |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN102865761B (en) | 2016-01-27 |
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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 |