CN105352345B - Micro-channel heat exchanger and its air conditioner - Google Patents
Micro-channel heat exchanger and its air conditioner Download PDFInfo
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- CN105352345B CN105352345B CN201510790290.9A CN201510790290A CN105352345B CN 105352345 B CN105352345 B CN 105352345B CN 201510790290 A CN201510790290 A CN 201510790290A CN 105352345 B CN105352345 B CN 105352345B
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- collector tube
- tube
- refrigerant
- heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention discloses a kind of micro-channel heat exchanger and its air conditioner, wherein, the micro-channel heat exchanger is included in the first collector tube and the second collector tube being arranged side by side, and the multiple flat tubes extended from first collector tube to the second collector tube, the inside of each flat tube sets at least one water spray passage and multiple refrigerant passages, each flat tube is communicated with the water spray passage, and the hole for water spraying set towards neighbouring flat tube, the multiple refrigerant passage is connected with first collector tube and the second collector tube, first collector tube or the second collector tube are provided with refrigerant inlet and refrigerant exit, the water cavity being connected with the water spray passage of the multiple flat tube is provided with second collector tube, and with the spaced refrigerant chamber of the water cavity, second collector tube is communicated with the water inlet of the water cavity.Technical solution of the present invention realizes the combined heat radiating that air-cooled and water cooling is combined, and improves heat exchanger heat exchange efficiency.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of micro-channel heat exchanger and its air conditioner.
Background technology
Micro-channel heat exchanger is main by several parts such as two cylindrical collector tubes, flat tube, fin, reinforcing plate and fixed blocks
Constitute.Flat tube is arranged between the collector tube of left and right, make it that left and right collector tube and microchannel are mutual by the microchannel inside flat tube
Connection, forms a closed space, and fin is fixed between flat tube and flat tube, mainly turns into N number of radiating with microchannel single
Member, is responsible for inside microchannels fluid heat to be delivered in air.
The micro-channel heat exchanger radiating mode set in existing air conditioner is single, and such as summer temperature height, air-conditioning is in height
Frequent chaser protection occurs under warm environment, easily causes customer complaint.Further, since a fin pitch of fins is close, air passes through resistance
Greatly, thus heat exchanger windward side wind speed it is big compared with leeward side.But the unit coefficient of heat transfer of heat exchanger windward side and leeward side
Identical with heat exchange area, the wind speed of leeward side is low, and the units of heat that the region disperses is smaller than windward side so that existing microchannel
Heat exchanger leeward side temperature is high, and windward side good heat dissipation, and temperature is low, have impact on heat exchanger radiating efficiency.
The content of the invention
The main object of the present invention is to provide a kind of micro-channel heat exchanger and its air conditioner, it is intended to realize that water cooling is air-cooled compound
Formula radiates, and lifts heat exchanger heat exchange efficiency.
To achieve the above object, the present invention proposes a kind of micro-channel heat exchanger, including in the first collector tube being arranged side by side
The multiple flat tubes extended with the second collector tube and from first collector tube to the second collector tube, the inside of each flat tube is set
Put at least one water spray passage and multiple refrigerant passages, each flat tube is communicated with the water spray passage and towards neighbouring flat tube
The hole for water spraying of setting, the multiple refrigerant passage is connected with first collector tube and the second collector tube, first liquid collecting
Pipe or the second collector tube are provided with the spray being provided with refrigerant inlet and refrigerant exit, second collector tube with the multiple flat tube
Water cavity that aquaporin is connected and with the spaced refrigerant chamber of the water cavity, second collector tube is communicated with described
The water inlet of water cavity.
Water spray passage and multiple refrigerant passages on same flat tube are preferably located at, along windward side to the direction of leeward side,
An at least row is arranged into successively.
Preferably, the hole for water spraying from inside to outside, is obliquely installed from the water spray passage to air side direction.
Preferably, the thickness of each flat tube is on from windward side to the direction of leeward side, in being gradually reduced setting；In each
In flat tube, the cross-sectional area of the multiple refrigerant passage, on from windward side to the direction of leeward side, setting of successively decreasing successively.
Preferably, first collector tube and second collector tube are in vertically arranged, and the multiple flat tube prolongs in horizontal
Setting is stretched, the hole for water spraying is located at the bottom of each flat tube, and the bottom surface of each flat tube is horizontally disposed with, and the top surface of each flat tube is certainly
Windward side is on the direction of leeward side, in tilting down setting.
Preferably, in one end being connected with first collector tube of each flat tube, one end of the multiple refrigerant passage
Protrude from it is described water spray passage one end set, with the first refrigerant passage jack grafting located at first collector tube；Often
One end being connected with second collector tube of one flat tube is provided with breach, and the breach is located at the another of the multiple refrigerant passage
Hold between the other end of the water spray passage, the other end of the multiple refrigerant passage with located at the of second collector tube
Two refrigerant passage jack grafting, the water pipeline jack grafting of the other end of the water spray passage and second collector tube.
Preferably, first collector tube and second collector tube are in vertically arranged, and the multiple flat tube prolongs in horizontal
Stretch and the first dividing plate is provided with setting, first collector tube, first dividing plate is by the refrigerant chamber of first collector tube
Under be divided into multiple first compartments, second collector tube and be provided with second partition, the second partition is by described second
Multiple second compartments are divided into above and below the refrigerant chamber of collector tube, first dividing plate is with the second partition in above-below direction phase
Mutually stagger.
Preferably, first collector tube and second collector tube are in vertically arranged, and the multiple flat tube prolongs in horizontal
Stretch and the first dividing plate is provided with setting, first collector tube, first dividing plate is by the refrigerant chamber of first collector tube
Under be divided into multiple first compartments, second collector tube and be provided with second partition, the second partition is by described second
Multiple second compartments are divided into above and below the refrigerant chamber of collector tube, first dividing plate is with the second partition in above-below direction phase
Mutually stagger.
Preferably, the multiple flat tube, the first collector tube, the second collector tube and finned tube use aluminum material.
The present invention also proposes a kind of air conditioner, including micro-channel heat exchanger, temperature sensor, magnetic valve and controller：
The micro-channel heat exchanger is included in the first collector tube for being arranged side by side and the second collector tube and from described first
Multiple flat tubes that collector tube extends to the second collector tube, the inside of each flat tube sets at least one water spray passage and multiple refrigerants logical
Road, each flat tube is communicated with the water spray passage and the hole for water spraying set towards neighbouring flat tube, the multiple refrigerant passage
It is connected with first collector tube and the second collector tube, first collector tube or the second collector tube are provided with refrigerant inlet and cold
Matchmaker exports, be provided with second collector tube water cavity that is connected with the water spray passage of the multiple flat tube and with it is described
The spaced refrigerant chamber of water cavity, second collector tube is communicated with the water inlet of the water cavity；
The temperature sensor is set adjacent to the refrigerant exit, the refrigerant exit to detect the micro-channel heat exchanger
The refrigerant temperature at place；
The magnetic valve is on the pipeline between the water inlet and water source；
The controller is electrically connected with the magnetic valve and the temperature sensor, in the Thermal Performance of Micro Channels
When refrigerant temperature at the refrigerant exit of device is more than safe temperature, the solenoid valve conduction is controlled.
Technical solution of the present invention sets what is be connected with the water cavity by setting water cavity on the second collector tube on flat tube
Water spray passage, the hole for water spraying of the water spray passage can spray water carries out spray cooling to adjacent flat tube, with reference to wind-cooling heat dissipating, realizes
The combined heat radiating of air-cooled and water cooling, improves heat exchanger heat exchange efficiency, and can effectively prevent air-conditioning frequency in high temperature environments
The phenomenon of numerous shutdown.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
The structural representation for the embodiment of micro-channel heat exchanger one that Fig. 1 provides for the present invention；
Fig. 2 is the schematic cross-sectional view of micro-channel heat exchanger shown in Fig. 1；
Fig. 3 is the schematic top plan view of micro-channel heat exchanger shown in Fig. 1；
Fig. 4 is the schematic side view of the first header of micro-channel heat exchanger shown in Fig. 1；
Fig. 5 is the schematic perspective view of the first header of micro-channel heat exchanger shown in Fig. 1；
Fig. 6 is the schematic cross-sectional view of the first header of micro-channel heat exchanger shown in Fig. 1；
Fig. 7 is the schematic side view of the second header of micro-channel heat exchanger shown in Fig. 1；
Fig. 8 is the schematic perspective view of the second header of micro-channel heat exchanger shown in Fig. 1；
Fig. 9 is the schematic cross-sectional view of the second header of micro-channel heat exchanger shown in Fig. 1；
Figure 10 is the schematic diagram that the flat tube of micro-channel heat exchanger shown in Fig. 1 is combined with fin；
Figure 11 is the schematic perspective view of the flat tube of micro-channel heat exchanger shown in Fig. 1；
Figure 12 is the front schematic view of the flat tube of micro-channel heat exchanger shown in Fig. 1；
Figure 13 is the dimensional structure diagram of the liquid collecting pipe end-cap of micro-channel heat exchanger shown in Fig. 1；
Figure 14 is the water pipe end cap dimensional structure diagram of micro-channel heat exchanger shown in Fig. 1；
Figure 15 is the block schematic illustration of the control section of an embodiment of air conditioner of the present invention.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Micro-channel heat exchanger | 130 | Flat tube |
| 110 | First collector tube | 130a | Hole for water spraying |
| 111 | First refrigerant passage jack | 131 | Water spray passage |
| 112 | First dividing plate | 132 | Refrigerant passage |
| 113 | First compartment | 133 | Breach |
| 120 | Second collector tube | 140 | Fin |
| 120a | Water cavity | 151 | Reinforcing plate |
| 120b | Refrigerant chamber | 152 | Fixed block |
| 121a | Refrigerant input pipe | 161 | Liquid collecting pipe end-cap |
| 121b | Refrigerant efferent duct | 1611 | Collector tube extension |
| 121c | Water inlet | 162 | Water pipe end cap |
| 122a | Water spray passage connects hole | 1621 | Water pipe extension |
| 122b | Second refrigerant passage jack | 101 | Temperature sensor |
| 123 | Second partition | 102 | Magnetic valve |
| 124 | Second compartment | 103 | Controller |
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
It is to be appreciated that institute is directional in the embodiment of the present invention indicates that (such as up, down, left, right, before and after ...) is only used
In explaining relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each part etc., if should
When particular pose changes, then directionality indicates also correspondingly therewith to change.
In addition, the description for being related to " first ", " second " etc. in the present invention is only used for describing purpose, and it is not intended that referring to
Show or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " are defined
At least one this feature can be expressed or be implicitly included to two " feature.In addition, the technical scheme between each embodiment can
To be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme occurs
It is conflicting or when can not realize it will be understood that the combination of this technical scheme is not present, also not in the protection model of application claims
Within enclosing.
The present invention proposes a kind of micro-channel heat exchanger.
The structural representation for the embodiment of micro-channel heat exchanger one that Fig. 1 provides for the present invention；Fig. 2 is microchannel shown in Fig. 1
The schematic cross-sectional view of heat exchanger；Fig. 3 is the schematic top plan view of micro-channel heat exchanger shown in Fig. 1；Fig. 4 is that microchannel shown in Fig. 1 is changed
The schematic side view of first header of hot device；Fig. 5 illustrates for the three-dimensional of the first header of micro-channel heat exchanger shown in Fig. 1
Figure；Fig. 6 is the schematic cross-sectional view of the first header of micro-channel heat exchanger shown in Fig. 1；Fig. 7 is micro-channel heat exchanger shown in Fig. 1
The second header schematic side view；Fig. 8 is the schematic perspective view of the second header of micro-channel heat exchanger shown in Fig. 1；Fig. 9
The schematic cross-sectional view of the second header of micro-channel heat exchanger shown in Fig. 1；Figure 10 is the flat tube of micro-channel heat exchanger shown in Fig. 1
The schematic diagram combined with fin；Figure 11 is the schematic perspective view of the flat tube of micro-channel heat exchanger shown in Fig. 1；Figure 12 is shown in Fig. 1
The front schematic view of the flat tube of micro-channel heat exchanger；Figure 13 ties for the three-dimensional of the liquid collecting pipe end-cap of micro-channel heat exchanger shown in Fig. 1
Structure schematic diagram；Figure 14 is the water pipe end cap dimensional structure diagram of micro-channel heat exchanger shown in Fig. 1.
Fig. 1 to Fig. 3 and Fig. 9 are referred to Figure 10, micro-channel heat exchanger 100, including the first collector tube 110, second collection
Liquid pipe 120 and flat tube 130, flat tube 130 are arranged between the first collector tube 110 and the second collector tube 120, with water spray passage
131st, refrigerant passage 132 and connection water spray passage 131 and towards the hole for water spraying 130a in outside.The two ends of refrigerant passage 132 point
The first collector tube 110 and the second collector tube 120 are not connected, and refrigerant inlet is provided with the first collector tube 110 or the second collector tube 120
And refrigerant exit, water cavity 120a, the Yi Jiyu being connected with the water spray passage 131 of flat tube 130 are provided with the second collector tube 120
The spaced refrigerant chamber 120b of water cavity, the second collector tube 120 is communicated with water cavity 120a water inlet 121c.The present invention one is real
Apply in example, the Thermal Performance of Micro Channels 100 is included in the first collector tube 110 and the second collector tube 120 being arranged side by side and described in
Multiple flat tubes 130 that first collector tube 110 extends to the second collector tube 120, the inside of each flat tube 130 sets at least one to spray water
Passage 131 and multiple refrigerant passages 132, each flat tube 130 are communicated with the water spray passage 131 and towards neighbouring flat tube
The 130 hole for water spraying 130a set, the multiple refrigerant passage 132 is connected with the collector tube 120 of the first collector tube 110 and second
Logical, the collector tube 120 of the first collector tube 110 or second is provided with refrigerant inlet (refrigerant inlet is connected with refrigerant input pipe 121a)
With refrigerant exit (refrigerant exit is connected with refrigerant efferent duct 121b).
Technical solution of the present invention is set and the water by setting water cavity 120a on the second collector tube 120 on flat tube 130
The water spray passage 131 that chamber 120a is connected, the hole for water spraying 130a of the water spray passage 131 can be by outwards spraying water to neighbouring flat tube
130 (the particularly adjacent flat tubes 130 of hole for water spraying 130a directions) carry out spray cooling, with reference to wind-cooling heat dissipating, realize air-cooled
With the combined heat radiating of water cooling, heat exchanger heat exchange efficiency is improved, and can effectively prevent air-conditioning from frequently stopping in high temperature environments
The phenomenon of machine.
Generally for the micro-channel heat exchanger area of dissipation is increased, referring to Fig. 10, between two adjacent flat tubes 130
Provided with fin 140, it can be seen that the multiple fin 140 parallel be arranged at intervals, from the air-flow of windward side flow through the fin 140 it
Between gap, with the fin 140 carry out heat exchange.
It should be noted that：In the present invention, the position of first collector tube 110 and second collector tube 120 can be with
Exchange, accordingly, Ke Yishi is provided with the phase of water spray passage 131 with the multiple flat tube 130 in first collector tube 110
The water cavity 120a of connection and with the spaced refrigerant chamber 120b of the water cavity 120a, first collector tube 110 provided with connect
Lead to the water inlet of the water cavity 120a.
In the present invention, the refrigerant inlet and refrigerant exit can be according to the performance requirements or structure of micro-channel heat exchanger
Design requirement etc. is located at first collector tube 110, either, and the refrigerant inlet and refrigerant exit are located at second liquid collecting
Pipe 120, also or, the refrigerant inlet and refrigerant exit are separately located at first collector tube 110 and second collector tube
120。
The following specific accompanying drawing of structure, introduces the flat tube 130 and first collector tube 110 and second collector tube
Connected mode between 120：
Fig. 1 and Fig. 4 are referred to Fig. 5, first collector tube 110 is provided with multiple with the plurality of place of engaging of flat tube 130
First refrigerant passage jack 111.Fig. 1 and Fig. 7 are referred to Fig. 8, second collector tube 120 is engaged with the plurality of flat tube 130
Place is provided with multiple water spray passage jack 122a and multiple second refrigerant passage jack 122b.
Fig. 1 and Fig. 4 are referred to Fig. 9, in the present embodiment, is connected in each flat tube 130 with first collector tube 120
The one end connect, one end that one end of the multiple refrigerant passage 132 protrudes from the water spray passage 131 is set, with located at institute
State the grafting of the first refrigerant passage jack 111 of the first collector tube 120.Each flat tube 130 is connected with second collector tube 120
One end be provided with breach 133, the breach 133 be located at the multiple refrigerant passage 132 the other end with it is described water spray passage 131
The other end between, the other end of the multiple refrigerant passage 132 with located at second collector tube 120 the second refrigerant passage
Jack 122b grafting, the water spray passage jack 122a of the other end of the water spray passage 131 and second collector tube 120 is inserted
Connect.Between the plurality of flat tube 130 and the first collector tube 110, the second collector tube 120 and the fin 140 and corresponding flat tube 130
Between also fixed by soldering.
And it is further, the connection between the multiple collector tubes 110 of flat tube 130 and first of enhancing, the second collector tube 120
Intensity, then referring to Fig. 1, the outermost both sides of the plurality of flat tube 130 also set a reinforcing plate 151, the two ends of the reinforcing plate 151 respectively
It is connected respectively with the first collector tube 110, the second collector tube 120.The two ends of reinforcing plate 151 and the first collector tube 110 and second
It is fixedly connected between collector tube 120 by soldering.The structure that the reinforcing plate 151 solid by setting can strengthen heat exchanger is strong
Degree, support and the protection collector tube 110 of flat tube 130 and first and the second collector tube 120.
Referring to Fig. 1, the micro-channel heat exchanger also includes multiple fixed blocks 152, the plurality of fixed block 152 is connected respectively
In on the first collector tube 110, the second collector tube 120.Preferably, using four fixed blocks 152, it is separately fixed at the first collector tube
110th, the position of the end of the second collector tube 120.Technical solution of the present invention is by setting four fixed blocks 152 in order to the microchannel
The installation of heat exchanger is fixed.In other embodiments, the quantity of the fixed block 152, installation site and structure type can bases
Concrete condition is designed.
Below in conjunction with specific accompanying drawing, the essential structure of the collector tube 120 of the first collector tube 110 and second is introduced：
Fig. 1 to Fig. 3 and Fig. 6 and Fig. 9 are referred to, the collector tube 120 of the first collector tube 110 and second is (logical in a tubular form
Often set for circular tube shaped), the two ends of first collector tube 110 set liquid collecting pipe end-cap 161 respectively, second collector pipe 120
Two ends are equipped with the liquid collecting pipe end-cap 161 and water pipe end cap 162.The liquid collecting pipe end-cap 161, which has, can stretch into corresponding first collection
In the refrigerant chamber 120b of the collector tube 120 of liquid pipe 110 or second and collector tube extension 1611 with matching, the water pipe end cap
162 have in the water cavity 120a that can stretch into the second collector tube 120 and water pipe extension 1621 with matching.The present invention is implemented
Example is by setting above-mentioned extension structure, in order to increase the contact of end cap and the first collector tube 110 and the second collector tube 120
Face, increases bonding area, makes sealing effectiveness more preferably, lifts Product Safety, prevents hypertonia from causing weld micro- leakage occur.
In the present embodiment, first collector tube 110 and second collector tube 120 are the multiple in vertically arranged
Flat tube 130 is in extend laterally to be provided with the first dividing plate 112 in setting, first collector tube 110, and first dividing plate 112 will
The refrigerant chamber (non-label) of first collector tube 110 is divided into multiple first compartments 113, second collector tube up and down
Second partition 123 is provided with 120, the second partition 123 separates above and below the refrigerant chamber 120b of second collector tube 120
For multiple second compartments 124, first dividing plate 112 mutually staggers with the second partition 123 in above-below direction, in order to
Refrigerant forms the loop of roundabout circulation in refrigerant passage 132, lifts the efficiency of heat exchange.
Further, the refrigerant inlet and the refrigerant exit are located on second collector tube 120, wherein, it is described
Refrigerant inlet is arranged on the upper end of second collector tube 120, and is connected with the second compartment 124 of the top, the refrigerant
Outlet is arranged on the lower end of second collector tube 120, and is connected with the second compartment 124 of bottom.The technology of the present invention side
Case is by by the second compartment 124 of refrigerant inlet setting the second collector tube 120 the top, so that refrigerant is entered by refrigerant inlet
Enter to after second compartment 124 in rapid each refrigerant passage 132 of uniform divided flows road of energy.And the second compartment of bottom
Most of refrigerant in 124 has become liquid, under gravity, and refrigerant exit is designed in the refrigerant chamber bottom, is conducive to
The rapid discharge of liquid refrigerants, reduces some refrigerant flow resistances.
Below in conjunction with specific accompanying drawing, the essential structure of the flat tube 130 is introduced：
Fig. 1 to Fig. 3 and Figure 10 are referred to Figure 13, in the present embodiment, the plurality of flat tube 130, the first collector tube 110,
Second collector tube 120 and fin 140 use aluminum material.Ensureing to reduce into higher using aluminum material
This, because aluminium ductility is good, fusing point is low, and casting is simple, therefore can largely produce.
In the present embodiment, water spray passage 131 and multiple refrigerant passages 132 on same flat tube 130, along windward side
To the direction of leeward side, an at least row is arranged into successively (and specifically, in the present embodiment, on same flat tube 130
Water spray passage 131 and multiple refrigerant passages 132 are arranged in a row), the water spray passage 131 is described more close to the windward side
Individual refrigerant passage 132 is close to the air side.
In the present embodiment, the thickness of each flat tube 130 is set on from windward side to the direction of leeward side in being gradually reduced
Put, i.e., described flat tube 130 is wedge shaped to be set.In each flat tube 130, the cross-sectional area of the multiple refrigerant passage 132, certainly
Windward side is on the direction of leeward side, setting of successively decreasing successively.The cross sectional shape of the refrigerant passage 132 rounded (referring to Fig. 6) or
Polygon and other shapes.It is described many in each flat tube 130 when the cross sectional shape of the refrigerant passage 132 is rounded
The cross-sectional area of individual refrigerant passage 132 shows as caliber, the caliber of the multiple refrigerant passage 132, from windward side to leeward
On the direction of side, setting of successively decreasing successively.
Because fin 140 is made to the absorption that exchanges between the drag effect of wind speed, and radiating airflow and the heat of fin 140
With, the windward side of microchannel heat sink can be caused than leeward side, wind speed is higher, and relative temperature difference is bigger, radiating effect is more preferable, and this
Plant the substantially linear change of change.So, technical solution of the present invention is by by the horizontal stroke of multiple refrigerant passages 132 on flat tube 130
Sectional area (such as aperture) is arranged to, and gradually successively decreases from windward side toward air side, preferably linearly successively decreases, can make full use of
The windward side of the micro-channel heat exchanger is higher than leeward side wind speed, relative temperature difference big rule, improving heat exchanging efficiency, and causes
The temperature relative equilibrium of heat exchanger windward side and leeward side.In other embodiments, the cross-sectional area (example of the refrigerant passage 132
Such as aperture) can also, according to heat exchange rule, non-linearly successively decrease.
Preferably, the hole for water spraying 130a from inside to outside, is obliquely installed from the water spray passage 131 to air side direction,
Namely be obliquely installed to the refrigerant passage 132 of neighbouring flat tube 130.
Technical solution of the present invention by set hole for water spraying 130a from it is described water spray passage 131 from inside to outside, to air side direction
It is obliquely installed, namely is obliquely installed to the refrigerant passage 132 of neighbouring flat tube 130, in order to the water energy for the ejection of passage 131 of spraying water
Sprayed with optimal angle, water spray is covered the maximum area of flat tube 130, in order to carry out water-cooling under high temperature, and carry
The utilization ratio of water is risen.In other embodiments, hole for water spraying 130a angle of inclination size is not limited, with specific reference to hydraulic pressure and
Spacing between the width of neighbouring flat tube 130, and the two adjacent flat tubes 130 is determined, to ensure optimal injection
Angle, is defined by that can cover the maximum area of neighbouring flat tube 130.
In the present embodiment, first collector tube 110 and second collector tube 120 are the multiple in vertically arranged
Flat tube 130 is located at the bottom of each flat tube 130 in setting, the hole for water spraying 130a is extended laterally, and hole for water spraying 130a outlet can
To spray water downwards, the bottom surface of each flat tube 130 is horizontally disposed with, and the top surface of each flat tube 130 is from windward side to leeward side
On direction, in tilting down setting.
Technical solution of the present invention is by setting bottom surface level, top surface inclination bottom surface, in order to the water for the ejection of passage 131 of spraying water
It can flow through the larger area of the top surface of flat tube 130 as far as possible along top surface flow down, further enhance radiating effect.
The present invention also proposes a kind of air conditioner, and Figure 15 shows for the framework of the control section of an embodiment of air conditioner of the present invention
It is intended to
Figure 15 is referred to, the air conditioner includes micro-channel heat exchanger 100 (referring particularly to Fig. 1), temperature sensor 101, electricity
Magnet valve 102 and controller 103, the concrete structure of the micro-channel heat exchanger 100 is with reference to above-described embodiment, because this air conditioner is adopted
With whole technical schemes of above-mentioned all embodiments, thus at least the technical scheme with above-described embodiment brought it is all
Beneficial effect, this is no longer going to repeat them.Wherein, the temperature sensor 101 is set adjacent to the refrigerant exit, to detect
Refrigerant temperature at the refrigerant exit of the micro-channel heat exchanger 100.The magnetic valve 102 located at the water inlet and water source it
Between pipeline on, the controller 103 is electrically connected with the magnetic valve 102 and the temperature sensor 101, in institute
When stating the refrigerant temperature at the refrigerant exit of micro-channel heat exchanger 100 more than safe temperature, the magnetic valve 102 is controlled to turn on.
There are the water source of certain pressure, such as running water, or indoor set condenser combination storage tank, micro pump in wherein described water source
It can realize, water consumption is few, the safe temperature is set regarding concrete condition.
Such as described safe temperature is 40 °, when the temperature value that temperature sensor 101 is sensed is more than 40 ° and continues 1 minute
When (in other embodiments can also be using other safe temperature values for being set according to actual conditions), the magnetic valve 102 is controlled
The control of device 103 processed, which is powered, opens, otherwise (temperature sensor continues to be less than 40 DEG C in 1 minute), the power-failure close of magnetic valve 102.In addition
Control board can increase fast-refrigerating program, when needing to realize fast-refrigerating, and user presses fast-refrigerating button, magnetic valve
Worked simultaneously with compressor, power off and close after setting electromagnetic valve work 2min, compressor is still normally run, it is possible to achieve be quick
Refrigeration.
Technical solution of the present invention is by setting magnetic valve 102, controller 103 and being set at the neighbouring refrigerant exit
Temperature sensor 101, can carry out intelligentized temperature control protection, strengthen the combined heat radiating function of the air conditioner, heat radiation
Efficiency, is effectively ensured the air conditioner and remains to normal work in high temperature environments without frequent shutdown.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical fields in the scope of patent protection of the present invention.
Claims (10)
1. a kind of micro-channel heat exchanger, it is characterised in that including the first collector tube and the second collector tube and multiple be arranged on institute
The flat tube between the first collector tube and second collector tube is stated, the inside of each flat tube sets at least one water spray passage and multiple
Refrigerant passage, each flat tube is communicated with the water spray passage and the hole for water spraying set towards neighbouring flat tube, and the refrigerant leads to
Road is connected with first collector tube and the second collector tube, first collector tube or the second collector tube provided with refrigerant inlet and
Be provided with refrigerant exit, second collector tube water cavity that is connected with the water spray passage of the flat tube and with the water
The spaced refrigerant chamber of chamber, second collector tube is communicated with the water inlet of the water cavity.
2. micro-channel heat exchanger as claimed in claim 1, it is characterised in that first collector tube and the second liquid collecting tube side-by-side
Set, multiple flat tubes extend from first collector tube to the second collector tube, and the outlet of the hole for water spraying is downward.
3. micro-channel heat exchanger as claimed in claim 2, it is characterised in that water spray passage on same flat tube and multiple
Refrigerant passage, along windward side to the direction of leeward side, is arranged into an at least row successively.
4. micro-channel heat exchanger as claimed in claim 3, it is characterised in that the hole for water spraying from the water spray passage to
Outside, it is obliquely installed to air side direction.
5. micro-channel heat exchanger as claimed in claim 3, it is characterised in that the thickness of each flat tube is from windward side to leeward
On the direction of side, in being gradually reduced setting；In each flat tube, the cross-sectional area of the multiple refrigerant passage, from windward side
To on the direction of leeward side, setting of successively decreasing successively.
6. the micro-channel heat exchanger as described in claim 1-5 any one, it is characterised in that first collector tube and described
Second collector tube is in vertically arranged, and the flat tube is in setting is extended laterally, and the hole for water spraying is located at the bottom of the flat tube, described
The bottom surface of flat tube is horizontally disposed with, and the top surface of the flat tube is on from windward side to the direction of leeward side, in tilting down setting.
7. micro-channel heat exchanger as claimed in claim 1, it is characterised in that be connected in the flat tube with first collector tube
Place the refrigerant passage residing for part relative to it is described water spray passage residing for part it is outstanding set, with located at institute
State the first refrigerant passage jack grafting of the first collector tube；The other end of the multiple refrigerant passage is with being located at second liquid collecting
Second refrigerant passage jack grafting of pipe, the water pipeline jack of the other end of the water spray passage and second collector tube is inserted
Connect.
8. micro-channel heat exchanger as claimed in claim 1, it is characterised in that first collector tube and second collector tube
In vertically arranged, the flat tube is provided with the first dividing plate, first dividing plate in extending laterally in setting, first collector tube
To be divided into above and below the refrigerant chamber of first collector tube in multiple first compartments, second collector tube be provided with second every
Plate, the second partition will be divided into multiple second compartments, first dividing plate above and below the refrigerant chamber of second collector tube
Mutually stagger in above-below direction with the second partition.
9. micro-channel heat exchanger as claimed in claim 8, it is characterised in that the refrigerant inlet and the refrigerant exit are located at
On second collector tube, wherein, the refrigerant inlet is arranged on the upper end of second collector tube, and with the second of the top
Compartment is connected, and the refrigerant exit is arranged on the lower end of second collector tube, and is connected with the second compartment of bottom.
10. a kind of air conditioner, it is characterised in that including the micro-channel heat exchanger described in claim 1-9 any one, the sky
Device is adjusted also to include temperature sensor, magnetic valve and controller：
The temperature sensor is set adjacent to the refrigerant exit, at the refrigerant exit to detect the micro-channel heat exchanger
Refrigerant temperature；
The magnetic valve is on the pipeline between the water inlet and water source；
The controller is electrically connected with the magnetic valve and the temperature sensor, in the micro-channel heat exchanger
When refrigerant temperature at refrigerant exit is more than safe temperature, the solenoid valve conduction is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510790290.9A CN105352345B (en) | 2015-11-16 | 2015-11-16 | Micro-channel heat exchanger and its air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510790290.9A CN105352345B (en) | 2015-11-16 | 2015-11-16 | Micro-channel heat exchanger and its air conditioner |
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| CN105352345A CN105352345A (en) | 2016-02-24 |
| CN105352345B true CN105352345B (en) | 2017-07-28 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864888A (en) * | 2016-04-01 | 2016-08-17 | 海信（山东）空调有限公司 | Microchannel heat exchanger and air conditioner |
| CN106206494A (en) * | 2016-08-29 | 2016-12-07 | 华霆（合肥）动力技术有限公司 | The cold pipe of flat tube, liquid and liquid cooling apparatus |
| CN108413801A (en) * | 2018-05-16 | 2018-08-17 | 南昌大学 | A kind of separate type microchannel heat sink |
| CN108981431A (en) * | 2018-09-26 | 2018-12-11 | 上海加冷松芝汽车空调股份有限公司 | A kind of liquid collecting tube assembly and heat exchanger |
| CN111895840B (en) * | 2019-05-05 | 2021-08-17 | 浙江三花智能控制股份有限公司 | Micro-channel flat tube and micro-channel heat exchanger |
| CN215491193U (en) * | 2020-07-14 | 2022-01-11 | 杭州三花微通道换热器有限公司 | Heat exchanger |
| CN112595154A (en) * | 2020-12-31 | 2021-04-02 | 西南交通大学 | Air-cooled heat pipe radiator for electronic component and working method |
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| JP3864916B2 (en) * | 2002-08-29 | 2007-01-10 | 株式会社デンソー | Heat exchanger |
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| CN105352345A (en) | 2016-02-24 |
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