CN1506646A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
CN1506646A
CN1506646A CNA2003101202661A CN200310120266A CN1506646A CN 1506646 A CN1506646 A CN 1506646A CN A2003101202661 A CNA2003101202661 A CN A2003101202661A CN 200310120266 A CN200310120266 A CN 200310120266A CN 1506646 A CN1506646 A CN 1506646A
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CN
China
Prior art keywords
pipe
aforementioned
heat exchanger
cooling fin
fin tube
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.)
Granted
Application number
CNA2003101202661A
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Chinese (zh)
Other versions
CN1322300C (en
Inventor
冈座典穗
井上雄二
川邉义和
中谷和生
庵原辰三
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN1506646A publication Critical patent/CN1506646A/en
Application granted granted Critical
Publication of CN1322300C publication Critical patent/CN1322300C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F28D7/0016Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being bent
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00Gas cycle refrigeration machines
    • F25B2309/06Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00Details of evaporators; Details of condensers
    • F25B2339/04Details of condensers
    • F25B2339/047Water-cooled condensers

Abstract

Provided is a heat exchanger compatibly having high performance and lower cost by achieving positive thermal contact in the heat exchanger configured by arranging another circular tube on the outer periphery of a circular tube. The heat exchanger comprises a tube with a fin having the fin on the outer periphery and the circular tube, wherein heat exchange is made between first fluid flowing in the tube with the fin and second fluid flowing in the circular tube. The circular tube is spirally wound on the outer periphery of the tube with the fin, and the fin is bent to fix the circular tube.

Description

Heat exchanger
Technical field
The present invention relates to be used for the heat exchanger of freezing cycle device, particularly be used as the heat exchanger of heat supply water in the hot-water supply with heat exchanger.
Background technology
For example, utilize side heat exchanger 2 as what be used for freezing cycle device, as shown in figure 12, adopted that to be wound on pipe on the periphery of pipe 11 by pipe 11 and helically 12 that constitute, the inside of pipe 11 as first fluid (for example, water) stream, as second fluid (for example the inside of pipe 12, the heat exchanger of stream refrigerant) [for example, with reference to TOHKEMY 2001-280862 communique (6-7 page or leaf, Fig. 5)].
; as shown in Figure 12 pipe 12 helicallies are wound on pipe 11 peripheries and in the heat exchanger that constitutes; for reliable thermo-contact is made in the thermo-contact of pipe 11 and pipe 12; be necessary to engage pipe 11 and pipe 12 by furnace brazing; thereby in order to reclaim its equipment investment, heat exchanger has produced the problem of expensiveization.
Therefore, the objective of the invention is to, reliable thermo-contact is made in the thermo-contact of pipe 11 and pipe 12, realize that promptly the high performance of heat exchanger can be realized cost degradation again by not carrying out furnace brazing.
Summary of the invention
The heat exchanger of the 1st technical scheme of the present invention, by constituting at band cooling fin tube that has fin on the periphery of pipe and the pipe that is configured on the periphery of aforementioned band cooling fin tube, at the first fluid of the inside that flows in aforementioned band cooling fin tube with flow between second fluid of inside of aforementioned pipe and carry out heat exchange, it is characterized in that the aforementioned fin of warpage also is fixed on aforementioned pipe on the periphery of aforementioned band cooling fin tube.
The heat exchanger of the 2nd technical scheme of the present invention, by constituting at band cooling fin tube that has fin on the periphery of pipe and the pipe that is configured on the periphery of aforementioned band cooling fin tube, at the first fluid of the inside that flows in aforementioned band cooling fin tube with flow between second fluid of inside of aforementioned pipe and carry out heat exchange, it is characterized in that, above-mentioned pipe is configured in the space between the aforementioned fin, aforementioned pipe is contacted with aforementioned tubes with the aforementioned heat radiation that is positioned at both sides is unilateral at least.
The heat exchanger of the 3rd technical scheme of the present invention is characterized in that, in the heat exchanger of the 1st and the 2nd technical scheme, aforementioned pipe helically is wound on the aforementioned band cooling fin tube.
The heat exchanger of the 4th technical scheme of the present invention is characterized in that, in the heat exchanger of the 1st and the 2nd technical scheme, disposes aforementioned pipe abreast with the tubular axis of aforementioned band cooling fin tube.
The heat exchanger of the 5th technical scheme of the present invention is characterized in that, in the heat exchanger of the 1st and the 2nd technical scheme, the internal diameter of aforementioned pipe is made littler than the internal diameter of aforementioned band cooling fin tube.
The heat exchanger of the 6th technical scheme of the present invention is characterized in that, in the heat exchanger of the 1st and the 2nd technical scheme, aforementioned second fluid is made than the high fluid of aforementioned first fluid operating pressure.
The heat exchanger of the 7th technical scheme of the present invention is characterized in that, in the heat exchanger of the 1st and the 2nd technical scheme, aforementioned second fluid is a carbon dioxide gas, and aforementioned first fluid is a water.
The heat exchanger of the 8th technical scheme of the present invention is characterized in that, in the heat exchanger of the 1st and the 2nd technical scheme, fills heat transfer material in the space that is formed between aforementioned tubes, aforementioned fin and the aforementioned pipe.
The heat exchanger of the 9th technical scheme of the present invention is characterized in that, in the heat exchanger of the 1st and the 2nd technical scheme, the pipe on the periphery that is configured in aforementioned band cooling fin tube is made many pipes, makes the stream multi-pathization of second fluid.
Description of drawings
Fig. 1 is the pie graph that expression has utilized the hot-water supply of heat exchanger of the present invention.
Fig. 2 is the major part stereoscopic figure of band cooling fin tube of first fluid that flows through the heat exchanger of one embodiment of the present of invention.
Fig. 3 is the major part stereoscopic figure that is illustrated in the state of a part that has disposed the pipe that flows through second fluid on the periphery of band cooling fin tube of the foregoing description.
Fig. 4 is the major part profile that has disposed the state of pipe on the periphery of band cooling fin tube of expression the foregoing description.
Fig. 5 is the major part profile of expression the foregoing description completion status.
Fig. 6 is the major part profile of the heat exchanger of another embodiment.
Fig. 7 is the major part profile of the heat exchanger of another embodiment.
Fig. 8 is the major part profile of the heat exchanger of another embodiment.
Fig. 9 is the major part stereoscopic figure of band cooling fin tube heat exchanger, that flow through the 1st fluid of another embodiment.
Figure 10 is illustrated in the major part stereoscopic figure that has disposed the state of the pipe that flows through second fluid on the periphery of band cooling fin tube of above-mentioned heat exchanger.
Figure 11 is illustrated in the profile that has disposed the state of pipe on the periphery of band cooling fin tube of above-mentioned heat exchanger.
Figure 12 is the major part stereoscopic figure of the original heat exchanger of expression.
The specific embodiment
The 1st embodiment of the present invention is the warpage fin and pipe is fixed on the heat exchanger on the periphery of this cooling fin tube.According to present embodiment, owing to do not need soldering just can guarantee thermo-contact,, simultaneously, can be with the contact area of cooling fin tube and pipe improve heat exchange performance by increase so can reduce cost in the manufacturing of heat exchanger with cooling fin tube and pipe.
In addition, the 2nd embodiment of the present invention is that pipe is configured in the space between the fin, make pipe at least with the unilateral heat exchanger that contacts with pipe of the heat radiation that is positioned at both sides.According to present embodiment, improve heat exchange performance by the contact area that increases band cooling fin tube and pipe.
In addition, the 3rd embodiment of the present invention is in the 1st or the 2nd embodiment, and the pipe helically is wound on the band cooling fin tube and the heat exchanger that constitutes.According to present embodiment, improve heat exchange performance by the contact area that increases band cooling fin tube and pipe.
In addition, the 4th embodiment of the present invention is in the 1st or the 2nd embodiment, the heat exchanger that constitutes with respect to being with cooling fin tube to dispose pipe abreast.According to present embodiment, improve heat exchange performance by the contact area that increases band cooling fin tube and pipe, make the stream multi-pathization simultaneously easily.
In addition, the 5th embodiment of the present invention is in the 1st or the 2nd embodiment, the internal diameter of pipe is made littler than the internal diameter of band cooling fin tube.According to present embodiment, owing to the little pipe of diameter is processed easily, so easily pipe is configured in the periphery of band cooling fin tube.
In addition, the 6th embodiment of the present invention is in the 1st or the 2nd embodiment, at the operating pressure ratio of second fluid of the pipe internal flow high heat exchanger of operating pressure at the first fluid of the internal flow of band cooling fin tube.According to present embodiment, owing to, can reduce the cost that spends in the withstand voltage aspect that improves heat exchanger at the second high fluid of the internal flow pressure of the pipe of guaranteeing withstand voltage minor diameter easily.
In addition, the 7th embodiment of the present invention is in the 1st or the 2nd embodiment, is carbon dioxide gas at second fluid of the internal flow of pipe, makes the heat exchanger of water at the first fluid of the internal flow of band cooling fin tube.According to present embodiment,,, improved heat exchange performance so can reduce the cost that spends in the withstand voltage aspect that improves heat exchanger owing to the carbon dioxide gas that the internal flow heat-transfer character is good and pressure is high at the pipe of guaranteeing withstand voltage minor diameter easily.
In addition, the heat exchanger of the 8th embodiment of the present invention is in the 1st or the 2nd embodiment, filling heat-conducting substance in the space that forms between the outer peripheral face of being with radiating tube and fin and pipe.According to present embodiment, can obtain more reliable thermo-contact, improve heat exchange performance.
In addition, the heat exchanger of the 9th embodiment of the present invention is in the 1st or the 2nd embodiment, and the pipe of periphery that is configured in the band cooling fin tube is made many, makes the heat exchanger in the second fluid multi-pathization of the internal flow of pipe.According to present embodiment, can reduce the pressure loss of second fluid, improve heat exchange performance.
Embodiment
At first, the freezing cycle device that uses heat exchanger of the present invention is described.
Fig. 1 is the pie graph that expression utilizes the hot-water supply of heat exchanger of the present invention.As shown in Figure 1, the hot-water supply of present embodiment has: by compressor 1, as heat supply water with heat exchanger utilize refrigerant cycle A that side heat exchanger 2, pressure reducer 3 and the outer gas of handle constitutes as the heat source side heat exchanger 4 of thermal source and by feed pump 5, the heat supply circulation B that utilizes side heat exchanger 2 and heat supply water tank 6 to constitute.Refrigerant cycle A as refrigerant, for example uses carbon dioxide gas (carbon dioxide), with compressor 1 refrigerant is compressed to and crosses critical pressure and turn round.
From the refrigerant of compressor 1 output, heating is supplied with from supply-water pump 5 in utilizing side heat exchanger 2 water, the water that has been heated is stored in the heat supply water tank 6.
With Fig. 2 to Fig. 5 the formation of the heat exchanger of one embodiment of the present of invention of being used for such hot-water supply is described below.
The manufacturing process that from Fig. 2 to Fig. 5, represents the heat exchanger of present embodiment, Fig. 2 is the major part stereoscopic figure of the first fluid band cooling fin tube of flowing through, Fig. 3 is the major part stereoscopic figure of the state of the periphery that is illustrated in the band cooling fin tube part that disposes the pipe that second fluid flows through, Fig. 4 is illustrated in the major part profile that the periphery of being with cooling fin tube has disposed the state of pipe, and Fig. 5 is the major part profile of expression completion status.
As shown in Figure 2, usually, be called the band cooling fin tube 20 of low heat emission sheet pipe or high cooling fin tube, helically forms the fin 22 of specified altitude on the periphery of the pipe 21 of tubular, between the fin 22 that almost equally spaced forms, form spiral helicine space 23.
As shown in Figure 3, pipe 24 by helically be wound on the band cooling fin tube 20 fin 22 between space 23 in.And as shown in Figure 4, pipe 24, under the state that is wound on the band cooling fin tube 20, the outer peripheral face of external diameter being made pipe 24 contacts with 22 of the fin that is positioned at both sides with the outer peripheral face of pipe 21.
After being wound on pipe 24 on the band cooling fin tube 20, as shown in Figure 5, the part of the fin 22 by warpage band cooling fin tube 20 is made heat exchanger 2a.The warpage of fin 22 is to push or drawing processing is carried out by the instrument that inserts hollow again.Make it to wrap into pipe 24 by warpage fin 22, pipe 24 is fixed on the periphery of band cooling fin tube 20, guarantee the thermo-contact of pipe 24 and band cooling fin tube 20 by the warpage sheet of fin 22.
The heat exchanger 2a of present embodiment makes the stream of the first fluid of water for example etc. to the inside of band cooling fin tube 20, the inside of pipe 24 is made the stream of second fluid of the such refrigerant of carbon dioxide gas for example.Have, the first fluid and second fluid are preferably subtend and flow again.
For above-mentioned such heat exchanger 2a that constitutes, can obtain following effect.
At first, do not carry out furnace brazing original heat exchanger and just can guarantee thermo-contact, so can reduce cost in the manufacturing of heat exchanger 2a with cooling fin tube 20 and pipe 24 owing to do not resemble.In addition, in original heat exchanger, only periphery and the pipe 12 with pipe 11 carries out Metal Contact, opposite with it, in the heat exchanger 2a of present embodiment, fix like that owing to surround pipe 24, so increased the Metal Contact face with fin 22, can obtain thermo-contact more reliably, improve heat exchange performance with cooling fin tube 20 and pipe 24.
Have again, by the inside of pipe 24 being made the stream of second fluid higher than first fluid operating pressure, the inside of band cooling fin tube 20 is made the stream of the first fluid lower than second fluid operating pressure, because the pipe 24 of second fluid that the operating pressure that flows is high is a pipe of guaranteeing withstand voltage minor diameter easily, so can greatly suppress to reduce the cost that spends in the withstand voltage aspect that improves heat exchanger 2a owing to the rising that increases the cost of material that the withstand voltage necessary wall thickness be used to guarantee pipe 24 causes.
Below to above-mentioned such action when constituting heat exchanger 2a and being used for hot-water supply is described.
Stream as the fluid of the carbon dioxide gas of refrigerant is made in pipe 24 inside, the inside of band cooling fin tube 20 is made the stream of water.In this hot-water supply, become high-temperature high-pressure state with the refrigerant of compressor 1 compression, by as the heat exchanger of present embodiment utilize the pipe 24 of side heat exchanger 2a the time, to being cooled in the water heat release of the internal flow of band cooling fin tube 20.That is, send into the water of inside of band cooling fin tube 20 from the bottom of heat supply water tank 6, by refrigerant heating in the internal flow of pipe 24 by supply-water pump 5.Refrigerant is at the gas-liquid two-phase state that is depressurized device 3 decompressions becoming low-temp low-pressure thereafter.Then, refrigerant is cooled off by air in heat source side heat exchanger 4, becomes gas-liquid two-phase or gaseous state, becomes the refrigerant of gas-liquid two-phase or gaseous state, is inhaled in the compressor 1 again.By carrying out such circulation repeatedly, become hot water at the water of the internal flow of the band cooling fin tube 20 that utilizes side heat exchanger 2a, flow into and store this hot water by top from heat supply water tank 6, can be used as hot water supply device and use.Like this, as carbon dioxide gas is utilized the side heat exchanger as the hot-water supply of refrigerant, when using the heat exchanger 2a of present embodiment, can make than of the internal flow of the high carbon dioxide gas of other refrigerant operating pressure at the pipe 24 of guaranteeing withstand voltage minor diameter easily, can reduce the cost that spends in the withstand voltage aspect that improves heat exchanger 2a, simultaneously, improved heat exchange performance by flowing heat transfer characteristic good carbon dioxide gas.
With Fig. 6 the formation of the heat exchanger of another embodiment is described below.
The heat exchanger 2b of present embodiment, be on the formation base of heat exchanger shown in Figure 5, in the gap 25 that the outer peripheral face by the fin 22 of warpage and pipe 24 forms, fill the member that constitutes by the high material of conductivity of heat, for example, the glue etc. that contains the powder of aluminium alloy.In such heat exchanger 2b, the resistance to heat in gap 25 has been reduced by the high material of conductivity of heat, has improved heat exchange performance owing to obtaining more reliable thermo-contact.
With Fig. 7 the formation of the heat exchanger of another embodiment is described again.
The heat exchanger 2c of present embodiment is the heat exchanger of 2 pipes 34,35 of helically coiling between a plurality of fin 32 of band cooling fin tube 31, is the heat exchanger that fixes pipe 34,35 and band cooling fin tube 31 by the part of warpage fin 32.Have, pipe 34 and pipe 35 are by the stream of branched pipe (not shown) branch second fluid again, and second fluid flows side by side in the inside separately of pipe 34 and pipe 35,, second fluid flowing path is made 2 paths that is.In such heat exchanger 2c, can reduce the pressure loss of the 2nd fluid, improve heat exchange performance more.Have again, in the present embodiment, the pipe of reeling is made 2, the stream of second fluid is made 2 paths and be illustrated, also can make the formation of many pipes of coiling, the stream of second fluid is made more multi-path.
With Fig. 8 the formation of the heat exchanger of another embodiment is described again.
The heat exchanger 2d of present embodiment is that the fin 42 of band cooling fin tube 41 does not resemble behind the warpage the fixedly so high heat exchanger of fin of pipe 44.In such heat exchanger 2d, though can not be by the fixing pipe 44 of fin 42, because the height of fin 42 is low, the manufacturing of band cooling fin tube 41 becomes than being easier to, and can reduce manufacturing cost.Have again,,, improved heat exchange performance so increased the area of the Metal Contact of band cooling fin tube 41 and pipe 44 because fin 42 is made the shape of the chevron in the gap that is embedded in adjacent pipe 44.
Have, in the heat exchanger of above explanation, the fin 22,32,42 of band cooling fin tube 20,31,41 is used and is with the cooling fin tube identical materials preferably by processing methods such as rollformings again, and the aluminium alloy or the copper that for example have high conductivity of heat form.In addition, also can form helicla flute and ripple etc., seek to promote the expansion and the turbulent flow of heat transfer area, the performance of heat exchanger is further improved in the inside of band cooling fin tube 20,31,41.
With Fig. 9 to Figure 11 the formation of the heat exchanger of another embodiment is described again.
Fig. 9 is the major part stereoscopic figure of band cooling fin tube heat exchanger, that flow first fluid of present embodiment, Figure 10 is illustrated in the flow major part stereoscopic figure of state of pipe of second fluid of configuration on the periphery of band cooling fin tube of this heat exchanger, and Figure 11 is illustrated in the profile that has disposed the state of pipe on the periphery of band cooling fin tube.
As shown in Figure 9, band cooling fin tube 50 forms the fin 52 of many specified altitudes abreast with tube axial direction on the periphery of the pipe 51 of tubular.In the heat exchanger 2e of present embodiment, shown in Figure 10,11, the tubular axis with band cooling fin tube 50 in the space 53 between a plurality of fin 52 disposes pipe 54 abreast.Then, as shown in figure 11, by pushing and drawing processing etc., fin 52 with band cooling fin tube 50 encases pipe 54, perhaps hold under the arm and manage 54, pipe 54 is fixed on the periphery of band cooling fin tube 50, guarantee the thermo-contact of pipe 54 and band cooling fin tube 50 by the warpage top ends.In such heat exchanger 2e, except having with the same effect of the heat exchanger 2a of formation shown in Figure 4 and, because though the aspect ratio of fin 52 is lower, but also fixedly pipe 54 is processed than being easier to, so can reduce manufacturing cost with extruding that is used for warpage fin 52 and drawing.Have again,, have the advantage of the multi-pathization of easy realization second fluid flowing path as with the heat exchanger 2c explanation of formation shown in Figure 7.
Have, the fin 52 of band cooling fin tube 50 is preferably used by processing methods such as extruding and is with the cooling fin tube identical materials again, and the aluminium alloy or the copper that for example have high thermal conductivity are integrally formed.
According to the present invention, because on the pipe periphery of band cooling fin tube of fin that has been fixed on warpage, so do not need soldering, owing to can guarantee thermo-contact with cooling fin tube and pipe, so can reduce the manufacturing cost of heat exchanger, simultaneously, owing to the contact area that increases band cooling fin tube and pipe has improved heat exchange performance.
In addition, according to the present invention, pipe and the heat radiation that is positioned at both sides at least are unilateral to be contacted with pipe owing to make, so improve heat exchange performance because of the contact area of being with cooling fin tube and pipe increases.
In addition, according to the present invention,,, the contact area of being with cooling fin tube and pipe improves heat exchange performance because of increasing because the pipe helically is wound on the band cooling fin tube.
In addition, according to the present invention,,, simultaneously, make the stream multi-pathization easily because of the contact area increase of band cooling fin tube and pipe improves heat exchange performance owing to dispose pipe abreast with respect to the band cooling fin tube.
In addition, according to the present invention since the internal diameter of pipe is made littler than the internal diameter of band cooling fin tube because the little pipe of diameter processes easily, so easily pipe is configured on the periphery of being with cooling fin tube.
In addition, according to the present invention, because at the second high fluid of the internal flow pressure of the pipe of guaranteeing withstand voltage minor diameter easily, so can reduce the cost that spends in the withstand voltage aspect that improves heat exchanger.
In addition, according to the present invention,,, improved heat exchange performance so can reduce the cost that spends in the withstand voltage aspect that improves heat exchanger owing to the carbon dioxide gas that internal flow, heat-transfer character are good, pressure is high at the pipe of guaranteeing withstand voltage minor diameter easily.
In addition, according to the present invention,,, improved heat exchange performance so can obtain more reliable thermo-contact because heat transfer material is filled in the outer peripheral face and the space between fin and the pipe that is formed at the band cooling fin tube.
In addition,,, make stream multi-pathization,, improved heat exchange performance so can reduce the pressure loss of second fluid at second fluid of the internal flow of pipe because the pipe on the periphery that is configured in the band cooling fin tube is made many according to the present invention.

Claims (9)

1. heat exchanger, by constituting at band cooling fin tube that has fin on the periphery of pipe and the pipe that is configured on the periphery of aforementioned band cooling fin tube, at the first fluid of the inside that flows in aforementioned band cooling fin tube with flow between second fluid of inside of aforementioned pipe and carry out heat exchange, it is characterized in that the aforementioned fin of warpage also is fixed on aforementioned pipe on the periphery of aforementioned band cooling fin tube.
2. heat exchanger, by constituting at band cooling fin tube that has fin on the periphery of pipe and the pipe that is configured on the periphery of aforementioned band cooling fin tube, at the first fluid of the inside that flows in aforementioned band cooling fin tube with flow between second fluid of inside of aforementioned pipe and carry out heat exchange, it is characterized in that, above-mentioned pipe is configured in the space between the aforementioned fin, aforementioned pipe is contacted with aforementioned tubes with the aforementioned heat radiation that is positioned at both sides is unilateral at least.
3. heat exchanger as claimed in claim 1 or 2 is characterized in that, aforementioned pipe helically is wound on the aforementioned band cooling fin tube.
4. heat exchanger as claimed in claim 1 or 2 is characterized in that, disposes aforementioned pipe abreast with the tubular axis of aforementioned band cooling fin tube.
5. heat exchanger as claimed in claim 1 or 2 is characterized in that the internal diameter of aforementioned pipe is littler than the internal diameter of aforementioned band cooling fin tube.
6. heat exchanger as claimed in claim 1 or 2 is characterized in that, aforementioned second fluid is the fluid higher than the operating pressure of aforementioned first fluid.
7. heat exchanger as claimed in claim 1 or 2 is characterized in that, aforementioned second fluid is a carbon dioxide gas, and aforementioned first fluid is a water.
8. heat exchanger as claimed in claim 1 or 2 is characterized in that, fills heat transfer material in the space that is formed between aforementioned tubes, aforementioned fin and the aforementioned pipe.
9. heat exchanger as claimed in claim 1 or 2 is characterized in that, the pipe on the periphery that is configured in aforementioned band cooling fin tube is made many pipes, makes the stream multi-pathization of second fluid.
CNB2003101202661A 2002-12-10 2003-12-10 Heat exchanger Expired - Fee Related CN1322300C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP358031/2002 2002-12-10
JP2002358031A JP4084174B2 (en) 2002-12-10 2002-12-10 Heat exchanger

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Publication Number Publication Date
CN1506646A true CN1506646A (en) 2004-06-23
CN1322300C CN1322300C (en) 2007-06-20

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CNB2003101202661A Expired - Fee Related CN1322300C (en) 2002-12-10 2003-12-10 Heat exchanger

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JP (1) JP4084174B2 (en)
KR (1) KR20040050875A (en)
CN (1) CN1322300C (en)

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