CN206890932U - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN206890932U CN206890932U CN201720790872.1U CN201720790872U CN206890932U CN 206890932 U CN206890932 U CN 206890932U CN 201720790872 U CN201720790872 U CN 201720790872U CN 206890932 U CN206890932 U CN 206890932U
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Abstract
The utility model 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 at least two pipe rows, 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.According to the heat exchanger of the utility model embodiment, 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 the heat exchange efficiency of the heat exchanger tube in each pipe row is lifted, especially suitable for R290 refrigerants.Heat exchanger structure is simple, versatile, goes for the situation of multiple rows of heat exchanger, so as to lift the practicality of air conditioner.
Description
Technical field
Refrigeration technology field is the utility model is related to, 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, certain difficulty is caused for the debugging of heat exchanger.Current collector is generally used for flat pipe heat exchanger, has and simplifies stream
Effect, but the problem of condensed water discharges difficult, easy frosting be present.
A kind of finned coil formula heat exchanger of pipe with small pipe diameter is proposed in correlation technique, copper pipe moves towards up and down, and fin is level
Arrangement, both sides set collector tube to heat exchanger up and down, 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 are horizontally orientated to, and fin erects
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 there is the needs for needing small-pipe diameter heat exchanger to substitute 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.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model carries
Go out a kind of heat exchanger, the heat exchanger can simplify the refrigerant flow path of small-pipe diameter heat exchanger, the advantages of improving heat exchanging efficiency.
According to the heat exchanger of the utility model embodiment, including：At least two pipes are arranged, and each pipe row includes multiple
Heat exchanger tube；Mixed flow reversing piece, the mixed flow reversing piece are connected between at least two pipe rows, and the mixed flow reversing piece has
First junction of multiple heat exchanger tubes of the pipe row of connection one, the mixed flow reversing piece, which has, to be connected described in another
Second junction of multiple heat exchanger tubes of pipe row.
According to the heat exchanger of the utility model embodiment, by setting mixed flow reversing piece, mixed flow reversing piece can be connected to
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 each pipe row
The heat exchange efficiency of interior heat exchanger tube.Heat exchanger structure is simple, versatile, goes for the situation of multiple rows of heat exchanger, so as to
The practicality of air conditioner can be lifted.
According to some embodiments of the utility model, each pipe row includes：First collector tube and the second collector tube,
The both ends of the multiple heat exchanger tube are connected with first collector tube and second collector tube respectively, in first collector tube
Provided with dividing plate so that first collector tube is separated into multiple pipeline sections, the pipeline section of two first collector tubes of difference row
Between be connected with refrigerant reversing tube, described in two pipeline sections at the refrigerant reversing tube and the refrigerant reversing tube both ends are formed
Mixed flow reversing piece.
In some embodiments of the utility model, first collector tube of at least two pipes row is vertically set
Put, a refrigerant reversing tube is connected between first collector tube of adjacent two row.
In some embodiments of the utility model, on the pipe row of windward side, the bottom of first collector tube
The pipeline section is provided with the first refrigerant mouth；On the pipe row of leeward side, described in the top of first collector tube on pipeline section
Provided with the second refrigerant mouth；On direction from windward side to leeward side, between the two neighboring pipe row, first collection windward
The refrigerant is connected between the pipeline section of liquid pipe the top and the pipeline section of leeward the first collector tube bottom
Reversing tube.
In some embodiments of the utility model, when the heat exchanger is as condenser, the refrigerant is from described
Two refrigerant mouths are flowed into, discharged from the first refrigerant mouth；When the heat exchanger is as evaporator, the refrigerant is from described first
Refrigerant mouth is flowed into, discharged from the second refrigerant mouth.
Specifically, the quantity of the heat exchanger tube of the pipeline section connection where the first refrigerant mouth and described second cold
The ratio of number of the heat exchanger tube of pipeline section connection where matchmaker's mouth is 1:5-1:3.
In some embodiments of the utility model, the junction of the pipeline section of the refrigerant reversing tube and lower section is located at
Position below the middle part of the pipeline section of lower section；The junction of the refrigerant reversing tube and the pipeline section of top is above
The middle part above position of the pipeline section.
According in other embodiments of the present utility model, 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, described
At least two U-tubes that second 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 in each pipe row
Individual U-tube, the adjacent pipe row connect a mixed flow reversing piece between corresponding to group, and 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 corresponding 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 both ends of pipe row is cold
Matchmaker's mouth, the outside mouth of pipe that another described pipe arranges the U-tube at corresponding group both ends form the 4th refrigerant mouth.
In other embodiments of the present utility model, the heat exchanger also includes：3rd collector tube, the 3rd liquid collecting
Pipe is connected with the upper multiple U-tubes of pipe row described in leeward side.
According to some embodiments of the utility model, the heat exchanger is coiled finned heat exchanger, each heat exchange
Pipe is copper pipe and is respectively less than equal to φ 5, the heat exchanger shape for the female pipe of tool, the diameter of each heat exchanger tube
Arranged into having along pipe described in 2 to 4 rows of wind direction point row.
Preferably, the refrigerant that the heat exchanger uses is R290.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment
Become obvious and be readily appreciated that, wherein：
Fig. 1 is the wherein heat exchanger according to the overall structure diagram of the heat exchanger of one embodiment of the present utility model
Pipe row is 2；
Fig. 2 is according to the overall structure diagram of the heat exchanger of another embodiment of the present utility model, wherein heat exchanger
Pipe row be 3；
Fig. 3 is the overall structure exploded perspective view according to the heat exchanger of further embodiment of the present utility model, wherein changing
The pipe row of hot device is made up of U-tube；
Fig. 4 is the top view according to the second mixed flow reversing piece of the utility model embodiment；
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 mouth 141, the second refrigerant mouth 142, the 3rd refrigerant mouth 143, the 4th refrigerant mouth 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
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limitation.
In description of the present utility model, it is to be understood that term " on ", " under ", "front", "rear", " vertical ", " water
It is flat ", " bottom " " interior ", the orientation of the instruction such as " outer " or position relationship for based on orientation shown in the drawings or position relationship, be only for
Be easy to describe the utility model and simplify to describe, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, define " the
One ", one or more this feature can be expressed or be implicitly included to the feature of " second ".In description of the present utility model
In, unless otherwise indicated, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Heat exchanger 100 below with reference to Fig. 1-Fig. 5 descriptions according to the utility model embodiment, the heat exchanger 100 can be used
In air conditioner, it is possible to achieve the refrigeration of indoor environment or heating.
As Figure 1-Figure 4,10 are arranged and is mixed according to the heat exchanger 100 of the utility model embodiment, including at least two pipes
Reversing piece 200 is flowed, wherein each pipe row 10 includes multiple heat exchanger tubes 110.Specifically, multiple heat exchanger tubes 110 form one
Pipe row 10, each heat exchanger 100 can arrange 10 by least two pipes and form, and when heat exchanger 100 works, refrigerant is introduced into one
Pipe row 10, and circulation heat exchange in the heat exchanger tube 110 in pipe row 10, discharge cocurrent enters in next pipe row 10 after completing heat exchange
Continue cycling through.
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 is connected between different two pipes rows 10, 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 exchanging heat first
Circulated in pipe row 10 in device 100, after circulation, refrigerant enters in another pipe row 10 by mixed flow reversing piece 200
Continue to exchange heat, so as to optimize the refrigerant flow of heat exchanger 100, make refrigerant uniform circulation in each pipe row 10 complete to change
Heat.
Need exist for explanation, the heat exchanger 100 of the utility model embodiment is coiled finned heat exchanger, Mei Gehuan
Heat pipe 110 uses 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 exchange
Device 100, it is applied in the feature environment of increase refrigerant flow path, it is therefore desirable to be arranged to heat exchanger tube multiple rows of.But work as and change
When heat pipe is multiple rows of, refrigerant circulating resistance is larger, is pipe to reduce the heat exchanger tube 110 used in resistance the utility model.
It can herein be seen that the heat exchanger 100 of the utility model embodiment is not common coiled finned heat exchanger, nor commonly
Micro-channel heat exchanger (in micro-channel heat exchanger heat exchanger tube to be flat, and heat exchanger tube is only one layer in micro-channel heat exchanger), this reality
The number of plies of the heat exchanger tube not only needed with the heat exchanger 100 of new embodiment is more, and refrigerant main-process stream is grown.
In the utility model embodiment, there is provided mixed flow reversing piece 200 between pipe row 10 and pipe row 10 to be used as refrigerant stream
Logical converter, wherein the first junction 210 connects multiple heat exchanger tubes 110, the second junction 220 connects multiple heat exchanger tubes 110, made
Refrigerant is obtained to evenly distribute again to another after the refrigerant for multiple heat exchanger tubes 110 that when changing between pipe row 10 first conflux, abundant mixed flow
In multiple heat exchanger tubes 110 of row.In this way, avoiding same pipe from arranging on 10, refrigerant heat exchange situation is different in each heat exchanger tube 110
Cause the problem of heat transfer effect gap is big, heat exchange is insufficient.
According to the heat exchanger 100 of the utility model embodiment, by setting mixed flow reversing piece 200, mixed flow reversing piece 200 connects
It is connected 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
The heat exchange efficiency of multiple heat exchanger tubes 110 in each pipe row 10.Heat exchanger 100 is simple in construction, versatile, goes for more
The situation of heat exchanger 100 is arranged, so as to lift the practicality of air conditioner.
In the utility model embodiment, heat exchanger 100 forms the organization plan of at least two pipes row 10 and mixed flow is changed
Have to the organization plan of part 200 a variety of, two of which set-up mode is described with reference to two groups of difference embodiments.
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 both ends of multiple heat exchanger tubes 110 of each row the first collector tube 120 and the phase of the second collector tube 130 with the row respectively
Even, dividing plate 122 is provided with the first collector tube 120 so that the first collector tube 120 is separated into multiple pipeline sections 121, different two arranged
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 form the first mixed flow reversing piece 200a.
Specifically, the both 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
Pipe 130, and dividing plate 122 can be set in the first collector tube 120 and the second collector tube 130 so that collector tube is divided into multiple pipeline sections
121, so that refrigerant forms multiple flows in pipe row 10, how the setting of dividing plate 122 makes to form multiple flows in pipe row 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 heat exchanger 100 this class formation is not common micro-channel heat exchanger in implementing one, the implementation
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 to 10 the same sides is referred to as first
Collector tube 120, at least two pipes row 10 is referred to as the second collector tube 130 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 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 commutation of the refrigerant from a pipe row 10 to another pipe row 10.
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
Structure it is simple, be more prone to assemble.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 that heat exchanger 100 from occurring freezing or the situation of frosting.
Specifically, each pipe row 10 is vertically arranged that 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, is 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 forms windward side, and rear side forms lee face.
As Figure 1-Figure 2, in some embodiments of the utility model, on the pipe row 10 of windward side, the first liquid collecting
The bottom pipeline section 121 of pipe 120 is provided with the first refrigerant mouth 141, on the pipe row 10 of leeward side, the first collector tube 120 it is most upper
Square tube section 121 is provided with the second refrigerant mouth 142, on the direction from windward side to leeward side, between two pipes rows 10, windward side
It is connected between the pipeline section 121 of the top of first collector tube 120 and the pipeline section 121 of the leeward bottom of the first collector tube 120 cold
Matchmaker's reversing tube 201.In this way, the metamorphosis using refrigerant in heat transfer process, using gravity so that refrigerant flows automatically
It is dynamic.And the 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 mouth 142, from the first refrigerant mouth
141 discharges, when heat exchanger 100 is as evaporator, refrigerant is flowed into from the first refrigerant mouth 141, discharged from the second refrigerant mouth 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 mouth 141 is in the lower end of the first collector tube 120,
Two refrigerant mouths 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 output, the refrigerant for being advantageous to be transformed into liquid is discharged using gravity, while avoids gaseous coolant from flowing back.
When heat exchanger 100 is as evaporator, gradually subtracted in refrigerant heat transfer process by liquid condensation into gaseous state, refrigerant density
It is small.For on the whole, when heat exchanger 100 is as evaporator, refrigerant is exported from lower end output, upper end, is advantageous to be transformed into
Gaseous refrigerant is discharged using gravity, while avoids gaseous coolant from flowing back.
And when heat exchanger 100 is as evaporator, gradually existed in refrigerant heat transfer process by liquid condensation into gaseous state, gas
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 advantageous to
By maximum heat exchange efficiency.
Further, the quantity for the heat exchanger tube 110 that the pipeline section 121 where the first refrigerant mouth 141 connects and the second refrigerant mouth
The ratio of number for the heat exchanger tube 110 that pipeline section 121 where 142 connects is 1:5-1:3.Specifically, when heat exchanger 100 is as cold
During condenser, the refrigerant volume flowed into from the second refrigerant mouth 142 is larger, to pass through after the cold heat release of condensation suction, the volume of refrigerant becomes
It is small, therefore the quantity of the heat exchanger tube 110 of the connection of pipeline section 121 where the second refrigerant mouth 142 is needed than where the first refrigerant mouth 141
Pipeline section 121 connect heat exchanger tube 110 quantity it is more, through utility model people to refrigerant heat transfer process Midst density changing rule
Test of many times checking, draw the quantity of the heat exchanger tube 110 connected when the pipeline section 121 where the first refrigerant mouth 141 and second cold
The ratio of number for the heat exchanger tube 110 that pipeline section 121 where matchmaker's mouth 142 connects is 1:5-1:When 3, refrigerant is in heat exchanger tube 110
It is distributed most uniform, the heat exchange efficiency highest of heat exchanger 100.
As Figure 1-Figure 2, in some embodiments of the utility model, refrigerant reversing tube 201 and the pipeline section 121 of lower section
The underlying pipeline section 121 in junction middle part below position, the junction of the pipeline section 121 of refrigerant reversing tube 201 and top
The middle part above position of pipeline section 121 above, so as to utilize the form of refrigerant so that refrigerant is more uniform, so as to
Lift 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 mouth
142 enter heat exchanger 100, and after refrigerant circulates in the pipe row 10 of the leeward side of heat exchanger 100,10 are arranged 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, refrigerant can be made to 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
Formed 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 of another pipe row 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 are connected with two pipe rows 10.
In an example of the present utility model, two can be provided with the first junction 210 and the second junction 220
Connecting tube, two U-tubes 111 on the first junction 210 and one of pipe row 10 are connected, the second junction 220 with it is another
Two U-tubes 111 on individual pipe row 10 are connected, and the vertical conducting portion on the second mixed flow reversing piece 200b turns on about 202
Straight tube, therefore, the second mixed flow reversing piece 200b will can be interconnected between the U-tube 111 that be attached thereto, and realize refrigerant not
With the circulation in U-tube 111.
It is this that local commutation setting, knot are carried out to the heat exchanger tube 110 of different pipes row 10 using the second mixed flow reversing piece 200b
Structure is very flexible, can obtain more heat exchanger structures.Two refrigerant flow paths are allowed to be changed after one section of heat exchange 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
Multigroup U-tube 111, every group has N number of U-tube 111 during each pipe arranges 10, and at least one is connected between 10 corresponding groups of adjacent tubes row
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 circulation of the refrigerant in pipe row 10 more uniform, 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 corresponding 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 both ends forms the 3rd refrigerant mouth 143, and the U-shaped at group both ends is corresponded on another pipe row 10
The outside mouth of pipe of pipe 111 forms the 4th refrigerant mouth 144.
In some examples of the present utility model, as shown in figure 3, heat exchanger 100 also includes the 3rd collector tube 160, the 3rd
Collector tube 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,
3rd collector tube 160 is connected with the pipe row 10 of leeward side, after the completion of refrigerant circulates in U-tube 111, can enter the 3rd liquid collecting
Pipe 160, heat exchanger 100 is discharged by the 3rd collector tube 160.
Specifically, identical with refrigerant flow direction settings in embodiment one, when the conduct condenser of heat exchanger 100, refrigerant is from the
Four refrigerant mouths 144 are flowed into, discharged from the 3rd refrigerant mouth 143, and when heat exchanger 100 is as evaporator, refrigerant is from the 3rd refrigerant mouth
143 flow into, are discharged from the 4th refrigerant mouth 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, can reduce the processing cost of heat exchanger 100 from heat exchanger tube 110 of the diameter less than or equal to φ 5, heat exchange can be reduced
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 formed using U-shaped radiating tube, can be used in air conditioner realizing to air cooling
Or heating.It is worth understanding, it is only exemplary to describe below, rather than to concrete restriction of the present utility model.
As shown in figure 5, heat exchanger 100, which includes two pipes, arranges 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 mouth 143 is arranged on the pipe row 10 of windward side, and the 4th is cold
Matchmaker's mouth 144 is arranged on the pipe row 10 of leeward side.
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 mouth 143, and refrigerant is first respectively in the top U-tube 111 of windward side
Interior and bottom U-tube 111 circulates, and circulates a U-shaped flow respectively and respectively enters adjacent U-tube 111 afterwards, 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 among windward side, and
Be flowed into the second mixed flow reversing piece 200b, the refrigerant of mixed flow be well mixed in the second mixed flow reversing piece 200b after 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 are discharged from the 4th refrigerant mouth 144 of top, the 4th refrigerant mouth 144 of downward refrigerant from below
Discharge.
The like, when the quantity of U-tube 111 in same group is more than four, 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 forms the 3rd in windward side, every group of four U-tubes 111
Refrigerant mouth 143, the lower nozzle of the U-tube 111 of bottom form the 3rd refrigerant mouth 143.In leeward side, every group of four U-tubes 111
The upper orifice of the U-tube 111 of middle the top forms the 4th refrigerant mouth 144, and the lower nozzle of the U-tube 111 of bottom forms the 4th
Refrigerant mouth 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 the utility model either embodiment one or embodiment two, it is cold that heat exchanger 100 is suitable for use with R290
Matchmaker, can be as the outdoor heat exchanger of air conditioner.It is also applied for any of HCFC, HFC, HC, HFO.
According to the heat exchanger 100 of the utility model embodiment, because the heat exchanger refrigerant flow paths of φ 5 are more, stream adjustment is tired
Difficulty, therefore can be easier to make stream evenly using mixed flow reversing piece 200, debugging is simple, easy to control.Program application is held
Easily, relative inexpensiveness.
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 describe
Structure, material or feature are contained at least one embodiment or example of the present utility model.In this manual, to above-mentioned art
The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or
Person's feature can combine in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (12)
- A kind of 1. 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 are connected between at least two pipe rows, 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 both ends of the multiple heat exchanger tube are connected with first collector tube and second collector tube respectively, and described Dividing plate is provided with one collector tube so that first collector tube is separated into multiple pipeline sections,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 both ends form 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 be provided with the first refrigerant mouth；On the pipe row of leeward side, the top institute of first collector tube State pipeline section and be provided with the second refrigerant mouth；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 from the second refrigerant mouth, discharged from the first refrigerant mouth；When the heat exchanger is as evaporator, the refrigerant from The first refrigerant mouth is flowed into, discharged from the second refrigerant mouth.
- 6. heat exchanger according to claim 5, it is characterised in that what the pipeline section where the first refrigerant mouth 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 the second refrigerant mouth 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 Being formed by the consistent U-tube 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 Shape pipe, every group has N number of U-tube during each pipe is arranged, and connecting a mixed flow between the adjacent corresponding group of pipe row changes 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 corresponding 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 both ends of pipe row forms the 3rd refrigerant mouth, The outside mouth of pipe of the U-tube at corresponding group both ends forms the 4th refrigerant mouth 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 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 to have female pipe, and the diameter of each heat exchanger tube, which is respectively less than, is equal to φ 5, described Heat exchanger is arranged formed with pipe described in 2 to 4 rows along wind direction point row.
- 12. according to the heat exchanger any one of claim 1-11, it is characterised in that the refrigerant that the heat exchanger uses for R290。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720790872.1U CN206890932U (en) | 2017-06-30 | 2017-06-30 | Heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720790872.1U CN206890932U (en) | 2017-06-30 | 2017-06-30 | Heat exchanger |
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| Publication Number | Publication Date |
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| CN206890932U true CN206890932U (en) | 2018-01-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144049A (en) * | 2017-06-30 | 2017-09-08 | 广东美芝制冷设备有限公司 | Heat exchanger |
| CN108613437A (en) * | 2018-05-03 | 2018-10-02 | 珠海格力电器股份有限公司 | Heat-exchanger rig and air conditioner with it |
-
2017
- 2017-06-30 CN CN201720790872.1U patent/CN206890932U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144049A (en) * | 2017-06-30 | 2017-09-08 | 广东美芝制冷设备有限公司 | Heat exchanger |
| CN108613437A (en) * | 2018-05-03 | 2018-10-02 | 珠海格力电器股份有限公司 | Heat-exchanger rig and air conditioner with it |
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