CN107144049A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN107144049A CN107144049A CN201710527875.0A CN201710527875A CN107144049A CN 107144049 A CN107144049 A CN 107144049A CN 201710527875 A CN201710527875 A CN 201710527875A CN 107144049 A CN107144049 A CN 107144049A
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- Prior art keywords
- heat exchanger
- tube
- refrigerant
- pipe
- row
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of heat exchanger, the heat exchanger includes：At least two pipes are arranged, and each pipe row includes multiple heat exchanger tubes, and the caliber of the heat exchanger tube is less than or equal to 5mm；Mixed flow reversing piece, the mixed flow reversing piece is connected between pipe row described at least two, the mixed flow reversing piece has the first junction of multiple heat exchanger tubes of the pipe row of connection one, and the mixed flow reversing piece has the second junction of the multiple heat exchanger tubes for connecting another pipe row.Heat exchanger according to embodiments of the present invention, by setting mixed flow reversing piece, mixed flow reversing piece is connected between two different pipes rows, so as to realize the circulation of refrigerant between at least two pipes row, it is possible thereby to lift the heat exchange efficiency of the heat exchanger tube in each pipe row, R290 refrigerants are particularly suitable for use in.Heat exchanger structure is simple, and highly versatile goes for the situation of multiple rows of heat exchanger, so as to lift the practicality of air conditioner.
Description
Technical field
The present invention relates to refrigeration technology field, more particularly, to a kind of heat exchanger.
Background technology
The heat exchanger of pipe with small pipe diameter such as φ 5 heat exchanger can reduce the cost of air conditioner, reduce the charging amount of combustible refrigerant,
Therefore attention has in the industry been obtained and has widely been promoted.Because the heat exchanger refrigerant flow path arrangement number of pipe with small pipe diameter is more, cloth
Put more complicated, be that the debugging of heat exchanger causes certain difficulty.Current collector is generally used for flat pipe heat exchanger, with simplified stream
Effect, but there is the problem of difficult condensed water discharge, easy frosting.
Propose and moved towards above and below a kind of finned coil formula heat exchanger of pipe with small pipe diameter, copper pipe in correlation technique, fin is level
Both sides set collector tube above and below arrangement, heat exchanger, because fin is arranged horizontally, are unfavorable for the exclusion of condensed water, easy frosting
And ice.There is a phase technology in addition, it is proposed that a kind of finned coil formula heat exchanger of pipe with small pipe diameter, copper pipe is horizontally orientated to, fin is erected
Straight arrangement, heat exchanger both sides set current collector, but heat exchanger is only applicable to single situation, when simultaneously multiple rows of heat exchanger works
When, do not have the effect of simplified stream.
When making the refrigerant of waring and cooling air conditioning system using R290 refrigerants, due to the limitation of coolant injection amount, it need to use using small
Pipe diameter heat exchanger reduces internal volume, and this, which there is, needs the need for small-pipe diameter heat exchanger substitutes φ 7 pipes.In order to ensure medium side
Heat exchange area is constant, and pipe range of heat exchanger tube etc. will increase 0.35-1.0 times, in row, forms the heat exchanger of at least 2 rows, this
Heat exchanger is in the prior art also without suitable structure type.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, the present invention proposes that one kind is changed
Hot device, the heat exchanger can simplify the refrigerant flow path of small-pipe diameter heat exchanger, the advantage of improving heat exchanging efficiency.
Heat exchanger according to embodiments of the present invention, including：At least two pipes are arranged, and each pipe row includes multiple heat exchange
Pipe；Mixed flow reversing piece, the mixed flow reversing piece is connected between pipe row described at least two, and the mixed flow reversing piece has connection
First junction of multiple heat exchanger tubes of one pipe row, the mixed flow reversing piece, which has, connects another pipe row
Multiple heat exchanger tubes the second junction.
Heat exchanger according to embodiments of the present invention, by setting mixed flow reversing piece, mixed flow reversing piece can be connected to two
Between different pipes row, so as to realize the circulation of refrigerant between at least two pipes row, it is possible thereby to be lifted in each pipe row
The heat exchange efficiency of heat exchanger tube.Heat exchanger structure is simple, and highly versatile goes for the situation of multiple rows of heat exchanger, so as to
Lift the practicality of air conditioner.
According to some embodiments of the present invention, each pipe row includes：First collector tube and the second collector tube, it is described
The two ends of multiple heat exchanger tubes are connected with first collector tube and second collector tube respectively, are provided with first collector tube
Dividing plate by first collector tube to be separated into multiple pipeline sections, between the pipeline section of two first collector tubes of difference row
It is connected with two pipeline sections composition mixed flows of refrigerant reversing tube, the refrigerant reversing tube and the refrigerant reversing tube two ends
Reversing piece.
In some embodiments of the invention, first collector tube of at least two pipes row is vertically arranged, phase
A refrigerant reversing tube is connected between first collector tube of adjacent two rows.
In some embodiments of the invention, on the pipe row of windward side, described in the bottom of first collector tube
Pipeline section is provided with the first refrigerant mouthful；On the pipe row of leeward side, pipeline section described in the top of first collector tube is provided with
Second refrigerant mouthful；On direction from windward side to leeward side, between the two neighboring pipe row, first collector tube windward
The refrigerant commutation is connected between the pipeline section of the top and the pipeline section of leeward the first collector tube bottom
Pipe.
In some embodiments of the invention, when the heat exchanger is as condenser, the refrigerant is cold from described second
Matchmaker mouthful flows into, discharged from first refrigerant mouthful；When the heat exchanger is as evaporator, the refrigerant is from first refrigerant
Mouth is flowed into, discharged from second refrigerant mouthful.
Specifically, the quantity of the heat exchanger tube of the pipeline section connection where first refrigerant mouthful and described second cold
The ratio of number of the heat exchanger tube of pipeline section connection where matchmaker mouthful is 1:5-1:3.
In some embodiments of the invention, the junction of the refrigerant reversing tube and the pipeline section of lower section is located at lower section
The pipeline section middle part below position；Above described in the junction of the refrigerant reversing tube and the pipeline section of top
The middle part above position of pipeline section.
According in other embodiments of the present invention, the multiple heat exchanger tube at least two pipes row is by the mouth of pipe
The consistent U-tube composition in direction, first junction is connected with least two U-tubes of a pipe row, and described second
At least two U-tubes that junction is arranged with pipe another described are connected.
Specifically, each pipe row includes one group or multigroup U-tube, and every group has N during each pipe is arranged
A mixed flow reversing piece is connected between individual U-tube, the adjacent pipe row correspondence group, wherein N is the integer more than or equal to 2；
First junction of each mixed flow reversing piece is all connected with the neighbouring mutual pipe of two neighboring U-tube in same group
Mouthful, second junction of each mixed flow reversing piece is all connected with the neighbouring mutual of two neighboring U-tube in correspondence group
The mouth of pipe；In the adjacent pipe row, the outside mouth of pipe composition the 3rd of the U-tube at the upper every group of two ends of pipe row is cold
The outside mouth of pipe of the U-tube at correspondence group two ends constitutes the 4th refrigerant mouthful on matchmaker mouthful, another described pipe row.
In other embodiments of the present invention, the heat exchanger also includes：3rd collector tube, the 3rd collector tube with
The upper multiple U-tubes of pipe row are connected described in leeward side.
According to some embodiments of the present invention, the heat exchanger is coiled finned heat exchanger, and each heat exchanger tube is equal
For copper pipe and be the female pipe of tool, the diameter of each heat exchanger tube, which is respectively less than, is equal to φ 5, and the heat exchanger is formed with
Along pipe row described in 2 to 4 rows of wind direction point row.
Preferably, the refrigerant that the heat exchanger is used is R290.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the overall structure diagram of heat exchanger according to an embodiment of the invention, wherein the pipe row of heat exchanger
Number is 2；
Fig. 2 is the pipe of the overall structure diagram of heat exchanger according to another embodiment of the invention, wherein heat exchanger
Row is 3；
Fig. 3 is the overall structure exploded perspective view of heat exchanger according to still a further embodiment, wherein heat exchanger
Pipe row be made up of U-tube；
Fig. 4 is the top view of the second mixed flow reversing piece according to embodiments of the present invention；
Fig. 5 is the operation principle schematic diagram of embodiment illustrated in fig. 3 mixed flow reversing piece.
Reference：
Heat exchanger 100,
Pipe row 10,
Heat exchanger tube 110, U-tube 111,
First collector tube 120, pipeline section 121, dividing plate 122,
Second collector tube 130,
First refrigerant mouthful 141, the second refrigerant mouthful 142, the 3rd refrigerant mouthful 143, the 4th refrigerant mouthful 144,
3rd collector tube 160,
Mixed flow reversing piece 200, the first junction 210, the second junction 220,
First mixed flow reversing piece 200a, refrigerant reversing tube 201,
Second mixed flow reversing piece 200b, vertical conducting portion 202.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " on ", " under ", "front", "rear", " vertical ", " level ",
The orientation or position relationship of the instruction such as " bottom " " interior ", " outer " are based on orientation shown in the drawings or position relationship, merely to just
In the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, defining " first ", " second "
One or more this feature can be expressed or be implicitly included to feature.In the description of the invention, unless otherwise indicated,
" multiple " are meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Heat exchanger 100 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 5, the heat exchanger 100 can be used for sky
Adjust in device, it is possible to achieve the refrigeration of indoor environment is heated.
As Figure 1-Figure 4, heat exchanger 100 according to embodiments of the present invention, including at least two pipes row 10 and mixed flow are changed
To part 200, wherein each pipe row 10 includes multiple heat exchanger tubes 110.Specifically, multiple heat exchanger tubes 110 constitute a pipe row
10, each heat exchanger 100 can be made up of at least two pipes row 10, when heat exchanger 100 works, and refrigerant is introduced into a pipe row
10, and in the interior circulation heat exchange of heat exchanger tube 110 that the pipe is arranged in 10, cocurrent is discharged after completion heat exchange and enters continuation in next pipe row 10
Circulation.
As shown in figures 1 and 3, mixed flow reversing piece 200 is connected between at least two pipes row 10, and mixed flow reversing piece 200 has
There are the first junction 210 and the second junction 220, the first junction 210 connects multiple heat exchanger tubes 110 of a pipe row 10, the
Two junctions 220 connect multiple heat exchanger tubes 110 of another pipe row 10.
Specifically, mixed flow reversing piece 200 be connected to two different pipes row 10 between, can be connected to adjacent tubes row 10 it
Between, it can also be connected between non-conterminous pipe row 10.When heat exchanger 100 has multi coil row 10, refrigerant is first in heat exchange
A pipe in device 100 arranges 10 interior circulations, after circulation is finished, and refrigerant enters in another pipe row 10 by mixed flow reversing piece 200
Proceed heat exchange, so as to optimize the refrigerant flow of heat exchanger 100, make refrigerant uniform circulation in each pipe row 10 complete to change
Heat.
Explanation is needed exist for, the heat exchanger 100 of the embodiment of the present invention is coiled finned heat exchanger, each heat exchanger tube
110 use a diameter of φ 5 and following pipe, and the pipe row 10 of formation is multiple rows of, preferably divides row 2-4 rows.Such heat exchanger
100, be applied to increase refrigerant flow path feature environment in, it is therefore desirable to heat exchanger tube is arranged to multiple rows of.But when heat exchange
Manage for it is multiple rows of when, refrigerant circulating resistance is larger, is pipe to reduce the heat exchanger tube 110 that uses in the resistance present invention.Here may be used
To find out, the heat exchanger 100 of the embodiment of the present invention is not common coiled finned heat exchanger, nor common microchannel is changed
Hot device (heat exchanger tube is flat in micro-channel heat exchanger, and heat exchanger tube is only one layer in micro-channel heat exchanger), the embodiment of the present invention
The number of plies for the heat exchanger tube that heat exchanger 100 not only needs is more, and refrigerant main-process stream is long.
In the embodiment of the present invention, mixed flow reversing piece 200 is provided between pipe row 10 and pipe row 10 and is turned as refrigerant circulation
Parallel operation, wherein the first junction 210 connects multiple heat exchanger tubes 110, the second junction 220 connects multiple heat exchanger tubes 110 so that cold
Matchmaker is first confluxed the refrigerants of multiple heat exchanger tubes 110 when being changed between arranging 10 from pipe, is evenly distributed again to another row's after abundant mixed flow
In multiple heat exchanger tubes 110.In this way, avoiding same pipe from arranging on 10, refrigerant heat exchange situation difference causes in each heat exchanger tube 110
The problem of heat transfer effect gap is big, heat exchange is insufficient.
Heat exchanger 100 according to embodiments of the present invention, by setting mixed flow reversing piece 200, mixed flow reversing piece 200 is connected to
Between two different pipe rows 10, so as to realize that at least two pipes arrange the circulation of refrigerant between 10, it is possible thereby to be lifted each
The heat exchange efficiency of multiple heat exchanger tubes 110 in pipe row 10.Heat exchanger 100 is simple in construction, highly versatile, goes for multiple rows of change
The situation of hot device 100, so as to lift the practicality of air conditioner.
In embodiments of the present invention, the organization plan and mixed flow reversing piece of at least two pipes of the formation of heat exchanger 100 row 10
200 organization plan has a variety of, with reference to two groups not be the same as Example two of which set-up mode is described.
Embodiment one
Fig. 1 and Fig. 2 two kinds of heat exchanger structures illustrate a kind of structure type of heat exchanger 100 in embodiment one.
In this kind of heat exchanger 100 of embodiment one, each pipe row 10 includes：First collector tube 120 and the second liquid collecting
Pipe 130, the first collector tube 120 and the phase of the second collector tube 130 of the two ends of multiple heat exchanger tubes 110 of each row respectively with the row
Even, dividing plate 122 is provided with the first collector tube 120 first collector tube 120 is separated into multiple pipeline sections 121, two of difference row
201 liang of refrigerant reversing tube 201, refrigerant reversing tube 201 and refrigerant reversing tube are connected between the pipeline section 121 of first collector tube 120
Two pipeline sections 121 at end constitute the first mixed flow reversing piece 200a.
Specifically, the two ends of multiple heat exchanger tubes 110 of each pipe row 10 are respectively provided with the first collector tube 120 and the second liquid collecting
Dividing plate 122 can be set in pipe 130, and the first collector tube 120 and the second collector tube 130 collector tube is divided into multiple pipeline sections
121, so that refrigerant forms multiple flows in pipe row 10, the setting of dividing plate 122, which arranges how pipe, forms multiple flows in 10
It is known to those of ordinary skill in the art, repeat no more here.Certainly, the second collector tube 130 needs also may not be used according to setting
If dividing plate 122, is not specifically limited here.
It should be noted that this class formation of heat exchanger 100 is not common micro-channel heat exchanger, the implementation in implementing one
Each heat exchanger tube 110 is pipe in example, and each heat exchanger tube 110 is straight tube.Preferably, each heat exchanger tube 110 is copper pipe,
Alternatively, each heat exchanger tube 110 is respectively provided with internal thread.Alternatively, heat exchanger 100 forms the direction point row 2-4 comb rows along wind
10。
In fig. 1 and 2, for ease of describing and understanding, the collector tube that at least two pipes are arranged into 10 the same sides is referred to as first
Collector tube 120, is referred to as the second collector tube 130 by least two pipes row 10 with the collector tube in opposite side.
In this kind of heat exchanger 100 of embodiment one, the mixed flow reversing piece 200 used for the first mixed flow reversing piece 200a,
First mixed flow reversing piece 200a can be made up of refrigerant reversing tube 201 and two pipeline sections 121, wherein the first mixed flow reversing piece 200a
On two pipeline sections 121 be located at respectively on different pipe rows 10, refrigerant flows into refrigerant reversing tube 201 from a pipeline section 121, so
Enter the pipeline section 121 of the other end of refrigerant reversing tube 201 afterwards, complete the commutation that refrigerant arranges 10 from a pipe row 10 to another pipe.
This pipeline section 121 for being equivalent to two the first collector tubes 120 has each acted as the first mixed flow reversing piece 200a the first junction
210 and second junction 220.
By setting refrigerant reversing tube 201, and the first collector tube 120 is separated into different pipeline sections 121, it is possible to achieve cold
Matchmaker's circulation cycle between different pipe rows 10 and pipe row 10, is optimized the refrigerant flow of heat exchanger 100, so as to carry
Rise heat exchange efficiency.
Specifically, in some embodiments of this kind of heat exchanger 100 of embodiment one, as Figure 1-Figure 2, at least two pipes
The first collector tube 120 of row 10 is vertically arranged, and a refrigerant reversing tube is connected between the first collector tube 120 of adjacent two row
201, it is provided with a first mixed flow reversing piece 200a equivalent between adjacent two comb row 10.So as to so that heat exchanger 100
It is simple in construction, be more prone to assembling.It is understood that the first collector tube 120 is vertically arranged, heat exchanger 100 can be made
On condensed water be more prone to discharge, prevent heat exchanger 100 occur freezing or frosting situation.
Specifically, each pipe row 10 is vertically arranged, and multiple heat exchanger tubes 110 of each pipe row 10 prolong in the horizontal direction
Stretch, in Fig. 1, each heat exchanger tube 110 extends in left-right direction, arranged along the vertical direction with multiple heat exchanger tubes 110 in row.Gas
Stream flows from the front to the back, and front side constitutes windward side, and rear side constitutes lee face.
As Figure 1-Figure 2, in some embodiments of the invention, on the pipe row 10 of windward side, the first collector tube 120
Bottom pipeline section 121 provided with the first refrigerant mouthfuls 141, on the pipe row 10 of leeward side, the top pipeline section of the first collector tube 120
121 provided with the second refrigerant mouthful 142, on the direction from windward side to leeward side, between two pipe rows 10, the first collection of windward side
Refrigerant commutation is connected between the pipeline section 121 of the top of liquid pipe 120 and the pipeline section 121 of the leeward bottom of the first collector tube 120
Pipe 201.In this way, the metamorphosis using refrigerant in heat transfer process, using gravity so that refrigerant automatic flowing.And
First mixed flow reversing piece 200a is so set, can be simplified the overall structure of heat exchanger 100.
Specifically, when heat exchanger 100 is as condenser, refrigerant flows into from the second refrigerant mouthfuls 142, from the first refrigerant mouthful
141 discharges, when heat exchanger 100 is as evaporator, refrigerant is flowed into from the first refrigerant mouthful 141, discharged from the second refrigerant mouthful 142.
That is, when heat exchanger 100 is as condenser, flow direction of the refrigerant in heat exchanger 100 and air flow direction to
Instead.I.e. in the example of fig. 1, the inside refrigerant of heat exchanger 100 integrally flows from the front to the back, and air-flow flows from the front to the back, air-flow
With refrigerant reverse flow, increase refrigerant condensation efficiency.
Further, since the first collector tube 120 is vertically arranged, the first refrigerant mouthful 141 is in the lower end of the first collector tube 120, the
Two refrigerants mouthfuls 142 are in the upper end of the first collector tube 120, when heat exchanger 100 is as condenser, in refrigerant heat transfer process gradually by
Gaseous state is condensed into liquid, the increase of refrigerant density.It is when heat exchanger 100 is as condenser, refrigerant is defeated from upper end on the whole
Go out, lower end is exported, be conducive to the refrigerant for being transformed into liquid to be discharged using gravity, while avoiding gaseous coolant from flowing back.
When heat exchanger 100 is as evaporator, gradually by liquid condensation into gaseous state in refrigerant heat transfer process, refrigerant density subtracts
It is small.For on the whole, when heat exchanger 100 is as evaporator, refrigerant is exported from lower end output, upper end, is conducive to being transformed into
Gaseous refrigerant is discharged using gravity, while avoiding gaseous coolant from flowing back.
And when heat exchanger 100 is as evaporator, gradually by liquid condensation into gaseous state in refrigerant heat transfer process, gas exists
Heat exchange efficiency can be reduced by being wrapped in heat exchanger tube 110 on tube wall.Therefore the refrigerant of liquid is inputted from windward side at first, be conducive to
By maximum heat exchange efficiency.
Further, the quantity for the heat exchanger tube 110 that the pipeline section 121 where the first refrigerant mouthful 141 is connected and the second refrigerant mouthful
The ratio of number for the heat exchanger tube 110 that pipeline section 121 where 142 is connected is 1:5-1:3.Specifically, when heat exchanger 100 is as cold
During condenser, the refrigerant volume flowed into from the second refrigerant mouthful 142 is larger, to be inhaled by condensation after cold heat release, the volume of refrigerant becomes
It is small, therefore the quantity of heat exchanger tube 110 that pipeline section 121 where the second refrigerant mouthfuls 142 is connected needed than where the first refrigerant mouthful 141
Pipeline section 121 connect heat exchanger tube 110 quantity it is many, through inventor to refrigerant heat transfer process Midst density changing rule it is many
Secondary verification experimental verification, draws the quantity and the second refrigerant mouthful of the heat exchanger tube 110 connected when the pipeline section 121 where the first refrigerant mouthful 141
The ratio of number for the heat exchanger tube 110 that pipeline section 121 where 142 is connected is 1:5-1:When 3, distribution of the refrigerant in heat exchanger tube 110
It is most uniform, the heat exchange efficiency highest of heat exchanger 100.
As Figure 1-Figure 2, in some embodiments of the invention, the company of refrigerant reversing tube 201 and the pipeline section 121 of lower section
Position below the middle part for locating underlying pipeline section 121 is connect, the junction of refrigerant reversing tube 201 and the pipeline section 121 of top is located at
The middle part above position of the pipeline section 121 of top, so as to utilize the form of refrigerant so that refrigerant is more uniform, so as to be lifted
The heat exchange efficiency of heat exchanger 100.
For example, as shown in figure 1, when heat exchanger 100 is as condenser, the gaseous coolant of HTHP is from the second refrigerant mouthful
142 enter heat exchanger 100, and refrigerant arranges 10 after pipe 10 interior circulations of row of the leeward side of heat exchanger 100 are finished from the pipe of leeward side
The pipeline section 121 of bottom enters refrigerant reversing tube 201, and now refrigerant volume after heat exchange reduces, and refrigerant focuses mostly on close
In the heat exchanger tube 110 of the bottom of heat exchanger 100, the junction of refrigerant reversing tube 201 and the pipeline section 121 of lower section is arranged under being located at
Position below the middle part of the pipeline section 121 of side, can make refrigerant more easily enter refrigerant reversing tube 201, so as to enter
In the pipe row 10 of windward side.When refrigerant reaches the junction of refrigerant reversing tube 201 and the pipeline section 121 of top, due to the pipeline section
121 heat exchanger tube 110 is arranged in the vertical direction, and the junction of refrigerant reversing tube 201 and the pipeline section 121 of top is set
The position more than middle part of pipeline section 121 up, can make refrigerant be evenly distributed to each heat exchanger tube of the pipeline section 121
In 110, it is possible thereby to lift the heat exchange efficiency of heat exchanger 100.
In this kind of heat exchanger 100 shown in embodiment one, each collector tube can pass through conduit and the corresponding phase of heat exchanger tube 110
Even, specifically, conduit is by being welded to connect on heat exchanger tube 110.
Alternatively, the first collector tube 120 and the second collector tube 130 are steel pipe, preferably No. 20 steel.
Alternatively, the first collector tube 120 and the surface of the second collector tube 130 are all provided with matcoveredn, excellent to completely cut off air oxidation
First, the first collector tube 120 and the surface of the second collector tube 130 are equipped with layer of paint.
Alternatively, catheter surface is provided with protective layer, to completely cut off air oxidation, it may be preferable that catheter surface is provided with layer of paint.
Embodiment two
Fig. 3-Fig. 5 heat exchanger structure illustrates a kind of structure type of heat exchanger 100 in embodiment two.
In this kind of heat exchanger 100 of embodiment two, as shown in figure 3, multiple heat exchanger tubes 110 at least two pipes row 10
Constituted by the consistent U-tube 111 in mouth of pipe direction, the first junction 210 and the phase of at least two U-tube 111 of a pipe row 10
Even, the second junction 220 is connected with least two U-tubes 111 that another pipe arranges 10.
Specifically, as shown in figure 3, the mouth of pipe of each U-tube 111 of heat exchanger 100 is towards the same of heat exchanger 100
Side, the second mixed flow reversing piece 200b is connected with two pipe rows 10.
, can be provided with two connections on the first junction 210 and the second junction 220 in the example of the present invention
Pipe, the first junction 210 is arranged two U-tubes 111 on 10 with one of pipe and is connected, the second junction 220 and another pipe
Two U-tubes 111 on row 10 are connected, and the vertical conducting portion 202 on the second mixed flow reversing piece 200b is the straight tube turned on up and down,
Therefore, the second mixed flow reversing piece 200b will can be interconnected between the U-tube 111 that be attached thereto, and realize refrigerant in different U-shapeds
Circulation in pipe 111.
It is this to carry out local commutation setting, knot using the second mixed flow reversing piece 200b heat exchanger tubes 110 for arranging 10 to different pipes
Structure is very flexible, can obtain more heat exchanger structures.Allow two refrigerant flow paths after one section exchanges heat, changed in the second mixed flow
Mixed inside to part 200b, make the outlet of two refrigerant flow paths closer, improve overall heat exchange effect.
As shown in figure 5, in some embodiments of the type heat exchangers of embodiment two, each pipe row 10 include one group or
Every group there is N number of U-tube 111, adjacent tubes to connect at least one between arranging 10 correspondence groups in multigroup U-tube 111, each pipe row 10
Individual mixed flow reversing piece 200, wherein N is the integer more than or equal to 2, so as to will each be managed by the second mixed flow reversing piece 200b
Connection is realized between multigroup U-tube 111 on row 10, makes refrigerant more uniform in the circulation that pipe is arranged in 10, it is possible thereby to be lifted
Heat exchange efficiency.
Specifically, as shown in Figure 4 and Figure 5, each second mixed flow reversing piece 200b the first junction 210 is all connected with same group
In two neighboring U-tube 111 the neighbouring mutual mouth of pipe, each second mixed flow reversing piece 200b the second junction 220 connects
Connect the neighbouring mutual mouth of pipe of two neighboring U-tube 111 in correspondence group.As shown in figure 5, in adjacent tubes row 10, a pipe row 10
The outside mouth of pipe of the U-tube 111 at upper every group of two ends constitutes the U-shaped at correspondence group two ends on the 3rd refrigerant mouthful 143, another pipe row 10
The outside mouth of pipe of pipe 111 constitutes the 4th refrigerant mouthful 144.
In some examples of the present invention, as shown in figure 3, heat exchanger 100 also includes the 3rd collector tube 160, the 3rd liquid collecting
Pipe 160 is connected with multiple U-tubes 111 on leeward side pipe row 10.3rd collector tube 160 is the vertical pipe fitting turned on up and down, the 3rd
Collector tube 160 is connected with the pipe row 10 of leeward side, and refrigerant can enter the 3rd collector tube after the completion of the interior circulation of U-tube 111
160, heat exchanger 100 is discharged by the 3rd collector tube 160.
Specifically, identical with refrigerant flow direction setting in embodiment one, when heat exchanger 100 is as condenser, refrigerant is from the
Four refrigerants mouthfuls 144 are flowed into, discharged from the 3rd refrigerant mouthful 143, when heat exchanger 100 is as evaporator, and refrigerant is from the 3rd refrigerant mouthful
143 flow into, are discharged from the 4th refrigerant mouthful 144.
In certain embodiments, heat exchanger 100 is coiled finned heat exchanger, and each heat exchanger tube 110 is copper pipe and is
Have female pipe, so as to increase the heat exchange area of heat exchanger tube 110, the heat exchange efficiency of heat exchanger 100 can be lifted.
The diameter of each heat exchanger tube 110, which is respectively less than, is equal to φ 5, and heat exchanger 100 is formed with 2 to the 4 combs row 10 along wind direction point row.Can be with
Understand, the heat exchanger tube 110 for being less than or equal to φ 5 from diameter can reduce the processing cost of heat exchanger 100, can reduce heat exchange
The practicality rushed injection rate, lift air conditioner of refrigerant in pipe 110.
Alternatively, the 3rd collector tube 160 is steel pipe, preferably No. 20 steel.
Alternatively, the surface of the 3rd collector tube 160 is all provided with matcoveredn, to completely cut off air oxidation, it may be preferable that the 3rd collector tube
160 surfaces are equipped with layer of paint.
The refrigerant flow process of second species type heat exchanger 100, the heat exchanger 100 are described in detail below with reference to Fig. 3-Fig. 5
For coiled fin radiator, the two-tube row 10 constituted using U-shaped radiating tube can be used in air conditioner realizing to air cooling
Or heat.It is worth understanding, it is only exemplary to describe below, rather than to the concrete restriction of the present invention.
As shown in figure 5, heat exchanger 100 includes two pipe rows 10 and a second mixed flow reversing piece 200b, each pipe row 10
Including four U-tubes 111, one second mixed flow reversing piece 200b, the second mixed flow reversing piece 200b is set to include first in heat exchange
Junction 210, the second junction 220 and connecting tube, wherein the first junction 210 is connected with the pipe row 10 of windward side, second leads
Socket part 220 and the pipe row 10 of leeward side link together.3rd refrigerant mouthful 143 is arranged on the pipe of windward side row 10, and the 4th is cold
Matchmaker mouthful 144 is arranged on the pipe of leeward side row 10.
Specifically, as shown in Figure 5 (in figure the signified direction of arrow be refrigerant flow direction), when heat exchanger 100 is as evaporating
During device, refrigerant enters heat exchanger 100 from the 3rd refrigerant mouthful 143, and refrigerant is first respectively in the top U-tube 111 of windward side
Interior and bottom U-tube 111 is circulated, and respectively enters adjacent U-tube 111 after one U-shaped flow of circulation respectively, afterwards again
A U-shaped flow is circulated respectively；
The refrigerant flowed into from top and the refrigerant flowed into from below converge between two U-tubes 111 in the middle of windward side, and
It is flowed into the second mixed flow reversing piece 200b, after the refrigerant of mixed flow is well mixed in the second mixed flow reversing piece 200b again equably
Flow to two U-tubes 111 of leeward side；
Flowed into two U-tubes 111 in leeward side centre position refrigerant be divided to again respectively it is upward, be downward through two U
The flow of shape, upward refrigerant is discharged from the 4th refrigerant mouthful 144 of top, the 4th refrigerant mouthful 144 of downward refrigerant from below
Discharge.
The like, when the quantity of U-tube 111 in same group is more than four, it can pass through between the U-tube 111 having more
Straight tube is connected.The mixed flow between two combs is realized by mixed flow reversing piece 200 so as to same group of heat exchanger tube 110.
Likewise, such setting is applied in Fig. 3 example, same pipe row 10 includes three groups of U-tube 111, every group
Four U-tubes 111 are set.The upper orifice of the U-tube 111 of the top constitutes the 3rd in windward side, every group of four U-tubes 111
Refrigerant mouthful 143, the lower nozzle of the U-tube 111 of bottom constitutes the 3rd refrigerant mouthful 143.In leeward side, every group of four U-tubes 111
The upper orifice of the U-tube 111 of middle the top constitutes the 4th refrigerant mouthful 144, and the lower nozzle of the U-tube 111 of bottom constitutes the 4th
Refrigerant mouthful 144.The pipe row 10 of 3rd collector tube 160 and the leeward side of heat exchanger 100 is installed together.In Fig. 3 example, the heat exchange
Device 100 sets three groups of U-tubes, needs to install three the second mixed flow reversing piece 200b altogether.
In either embodiment one of the invention or embodiment two, heat exchanger 100 is suitable for use with R290 refrigerants, can
It is used as the outdoor heat exchanger of air conditioner.It is also applied for any of HCFC, HFC, HC, HFO.
Heat exchanger 100 according to embodiments of the present invention, because the heat exchanger refrigerant flow paths of φ 5 are more, stream adjustment is difficult, because
This can be easier to make stream evenly using mixed flow reversing piece 200, and debugging is simple, easy to control.Program application is easy, into
This relative moderate.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present invention or example.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner be combined in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (12)
1. a kind of heat exchanger, it is characterised in that including：
At least two pipes are arranged, and each pipe row includes multiple heat exchanger tubes；
Mixed flow reversing piece, the mixed flow reversing piece is connected between pipe row described at least two, and the mixed flow reversing piece, which has, to be connected
The first junction of multiple heat exchanger tubes of a pipe row is connect, the mixed flow reversing piece, which has, connects another described pipe
Second junction of multiple heat exchanger tubes of row.
2. heat exchanger according to claim 1, it is characterised in that each pipe row includes：First collector tube and
Two collector tubes, the two ends of the multiple heat exchanger tube are connected with first collector tube and second collector tube respectively, and described
Provided with dividing plate so that first collector tube is separated into multiple pipeline sections in one collector tube,
Be connected with refrigerant reversing tube between the pipeline section of two first collector tubes of difference row, the refrigerant reversing tube and
Two pipeline sections at the refrigerant reversing tube two ends constitute the mixed flow reversing piece.
3. heat exchanger according to claim 2, it is characterised in that first collector tube of at least two pipes row is equal
It is vertically arranged, a refrigerant reversing tube is connected between first collector tube of adjacent two row.
4. heat exchanger according to claim 3, it is characterised in that on the pipe row of windward side, first collector tube
Bottom described in pipeline section provided with the first refrigerant mouthful；On the pipe row of leeward side, the top institute of first collector tube
Pipeline section is stated provided with the second refrigerant mouthful；On direction from windward side to leeward side, between the two neighboring pipe row, institute windward
State and be connected between the pipeline section of the first collector tube the top and the pipeline section of leeward the first collector tube bottom
The refrigerant reversing tube.
5. heat exchanger according to claim 4, it is characterised in that when the heat exchanger is as condenser, the refrigerant
Flow into, discharged from first refrigerant mouthful from second refrigerant mouthful；When the heat exchanger is as evaporator, the refrigerant from
First refrigerant mouthful is flowed into, discharged from second refrigerant mouthful.
6. heat exchanger according to claim 5, it is characterised in that what the pipeline section where first refrigerant mouthful was connected
The ratio of number for the heat exchanger tube that the quantity of the heat exchanger tube is connected with the pipeline section where second refrigerant mouthful is 1:
5-1:3。
7. heat exchanger according to claim 4, it is characterised in that the company of the refrigerant reversing tube and the pipeline section of lower section
Connect position below the middle part for locating the underlying pipeline section；The junction position of the refrigerant reversing tube and the pipeline section of top
In the middle part above position of the pipeline section of top.
8. heat exchanger according to claim 1, it is characterised in that the multiple heat exchanger tube at least two pipes row
By the consistent U-tube composition in mouth of pipe direction, first junction is connected with least two U-tubes of a pipe row,
At least two U-tubes that second junction is arranged with pipe another described are connected.
9. heat exchanger according to claim 8, it is characterised in that each pipe row includes one group or multigroup U
Every group there is one mixed flow of connection between N number of U-tube, the adjacent pipe row correspondence group to change in shape pipe, each pipe row
To part, wherein N is the integer more than or equal to 2；
First junction of each mixed flow reversing piece is all connected with the neighbouring mutual institute of two neighboring U-tube in same group
State the mouth of pipe, second junction of each mixed flow reversing piece be all connected with two neighboring U-tube in correspondence group it is neighbouring that
This mouth of pipe；
In the adjacent pipe row, the outside mouth of pipe of the U-tube at the upper every group of two ends of pipe row constitutes the 3rd refrigerant mouthful,
The outside mouth of pipe of the U-tube at correspondence group two ends constitutes the 4th refrigerant mouthful on another described pipe row.
10. heat exchanger according to claim 9, it is characterised in that also include：3rd collector tube, the 3rd collector tube
It is connected with the upper multiple U-tubes of pipe row described in leeward side.
11. heat exchanger tube according to claim 1, it is characterised in that the heat exchanger is coiled finned heat exchanger, each
The heat exchanger tube is copper pipe and is the female pipe of tool, and the diameter of each heat exchanger tube, which is respectively less than, is equal to φ 5, described
Heat exchanger is formed with along pipe row described in 2 to 4 rows of wind direction point row.
12. the heat exchanger tube according to any one of claim 1-11, it is characterised in that the refrigerant that the heat exchanger is used for
R290。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527875.0A CN107144049A (en) | 2017-06-30 | 2017-06-30 | Heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527875.0A CN107144049A (en) | 2017-06-30 | 2017-06-30 | Heat exchanger |
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Family
ID=59785414
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| CN201710527875.0A Pending CN107144049A (en) | 2017-06-30 | 2017-06-30 | Heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109640577A (en) * | 2017-10-09 | 2019-04-16 | 杭州三花家电热管理系统有限公司 | Heat exchanger and equipment equipped with electronic device |
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Application publication date: 20170908 |