CN205373156U - Parallel flow heat exchanger and air conditioner - Google Patents
Parallel flow heat exchanger and air conditioner Download PDFInfo
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- CN205373156U CN205373156U CN201620077707.7U CN201620077707U CN205373156U CN 205373156 U CN205373156 U CN 205373156U CN 201620077707 U CN201620077707 U CN 201620077707U CN 205373156 U CN205373156 U CN 205373156U
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- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 230000002209 hydrophobic effect Effects 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010257 thawing Methods 0.000 description 4
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- 238000004381 surface treatment Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 101100293261 Mus musculus Naa15 gene Proteins 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a concurrent flow heat exchanger and air conditioner. The parallel flow heat exchanger comprises a first collecting pipe, a second collecting pipe and a plurality of flat pipes connected between the first collecting pipe and the second collecting pipe, wherein the first collecting pipe and the second collecting pipe respectively comprise two cavities which are arranged in parallel along the length direction of the collecting pipes and are not communicated with each other; each flat pipe comprises two channels, and two ends of each channel are respectively communicated with the first collecting pipe and the second collecting pipe; the first cavities of the first collecting pipe and the second collecting pipe are communicated through a first channel of the flat pipe to form a first loop, and a medium in the first loop can obtain heat through an external heat source; the second cavities of the first collecting pipe and the second collecting pipe are communicated through a second channel of the flat pipe to form a second loop, and the second loop is connected with the refrigerating/heating equipment. The air conditioner comprises a shell and a parallel flow heat exchanger; the parallel flow heat exchanger is disposed within the housing. The utility model discloses be favorable to the concurrent flow heat exchanger to dissolve the frost that condenses at its outer surface.
Description
Technical field
This utility model relates to a kind of air-conditioning technical field, particularly relates to a kind of parallel-flow heat exchanger and air-conditioner.
Background technology
Along with technical development, parallel-flow heat exchanger, owing to having the feature such as heat transfer efficient, compact conformation, is increasingly subject to the favor in market.
At present, existing parallel-flow heat exchanger includes collector tube, be connected between collector tube and and some flat tubes of collector tube inner space, ripple type louvered fin between flat tube, and can also include being arranged on collector tube inside and by internal for the collector tube airtight partition (partition forms channels in series by interrupting along its length inside collector tube) being divided into multiple chamber, between at least two chamber, it is provided with the throttling arrangement that can change flow process number and each flow process flat tube number.
Owing to existing parallel-flow heat exchanger fin is that shutter is windowed sheet, fin thickness is generally 0.1mm, flat tube traverse, heat exchanger has a large amount of globule in heating operations and constantly accumulates between fin, and heat exchanger itself does not have drainage arrangement, when operating temperature is lower than 0 DEG C, the globule can congeal into ice immediately, can block shutter and the flat tube gap of fin, thus increasing heat exchange wind resistance, reduce heat exchange efficiency, directly affect heat exchanger normal operation.
Utility model content
In view of this, this utility model provides a kind of parallel-flow heat exchanger and air-conditioner, and main purpose is in that to enable parallel-flow heat exchanger self to melt the frost condensing in its outer surface, thus ensureing parallel-flow heat exchanger normal operation, reduce heat exchange wind resistance, improve heat exchange efficiency.
For reaching above-mentioned purpose, this utility model mainly provides following technical scheme:
On the one hand, an embodiment of the present utility model provides a kind of parallel-flow heat exchanger, including the first header, the second header and be connected to the multiple flat tubes between described first header and described second header, described first header and described second header all include two along header lengths direction parallel arranged and mutual disconnected cavity；
Each described flat tube includes two passages, and the two ends of each described passage are respectively communicated with described first header and described second header；
Wherein, described first header is connected by the first passage of described flat tube with the first cavity of described second header, forms the first loop, and the medium in described first loop can obtain heat by external heat source；
Described first header is connected by the second channel of described flat tube with the second cavity of described second header, forms second servo loop, and described second servo loop is connected with refrigerating/heating equipment.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Preferably, described first header and be provided with dividing plate in described second header along its length, the inner chamber of described first header and described second header is divided into disconnected first cavity and the second cavity mutually by described dividing plate respectively.
Preferably, the plurality of flat tube is parallel, and is inclined between described first header and described second header.
Preferably, the first cavity of described first header and described second header is in homonymy, and the second cavity of described first header and described second header is in homonymy；
Described second cavity is near wind regime side, the wind that wind regime blows to the described parallel-flow heat exchanger direction along the second cavity to the first cavity；
The direction that described flat tube tilts is that the bulb portion making described first cavity of connection is lower than the bulb portion connecting described second cavity.
Preferably, each described flat tube includes multiple through hole, and three through holes being wherein positioned at flat tube side are first passage, and rest channels is second channel；And the via count of second channel is more than the via count of first passage.
Preferably, parallel-flow heat exchanger also includes:
Fin, described fin is arranged on described flat tube；
The outer surface of described flat tube and/or described fin has coating, described coating to be hydrophobic or water wetted material.
Preferably, the medium in described first loop is heat exchange medium, and the medium in described second servo loop is coolant.
Preferably, described first loop also includes control unit, and described control unit controls the flowing of the medium in described first loop.
Preferably, described control unit includes valve, and described valve is connected in described first loop.
Preferably, described valve is motor valve；
Described control unit also includes sensor, and described sensor is arranged near described flat tube, for detecting the outer surface whether frosting of described flat tube；
Described sensor electrically connects with described motor valve.
Preferably, described first loop also includes compression pump, and described compression pump is connected in described first loop.
Preferably, described first loop also includes reserving liquid tank, and described reserving liquid tank medium in described external heat source, described reserving liquid tank obtains heat by described external heat source and can flow in described first loop.
On the other hand, embodiment of the present utility model provides a kind of air-conditioner, including:
Housing；And
Above-mentioned parallel-flow heat exchanger；
Described parallel-flow heat exchanger is arranged in described housing.
Preferably, described external heat source is the accumulator of air-conditioner and/or motor and/or compressor.
By technique scheme, this utility model one parallel-flow heat exchanger and air-conditioner at least have the advantage that
The technical scheme that this utility model provides all includes two along header lengths direction parallel arranged and mutual disconnected cavity by making described first header and described second header, owing to each described flat tube includes two passages, the two ends of each passage are respectively communicated with described first header and described second header, wherein, described first header is connected by first passage with the first cavity of described second header, form the first loop, medium in described first loop can obtain heat by external heat source, makes the frost on described flat tube be heated thawing.And described first header is connected by second channel with the second cavity of described second header, forming second servo loop, described second servo loop is connected with refrigerating/heating equipment, for system offer refrigerating/heating function.Therefore while refrigerating/heating, it is possible to effectively prevent flat tube frosting, it is ensured that the normal operation of parallel-flow heat exchanger, it is to avoid frosting causes heat exchange wind resistance to increase, and improves heat exchange efficiency simultaneously.
Preferably, by increasing the central dividing plate of collector tube length direction, making the chamber of two complementary connections, after coordinating with flat tube, ante-chamber is used for defrost, and back cavity is used for normal refrigerating/heating；Two loops (defrost loop, refrigerating/heating loop) integrate, and volume is little, lightweight, and heat exchange efficiency is high.
Preferably, the flat tube of parallel-flow heat exchanger, fin slant setting, it is possible to effectively prevent the formation of frosting, and under gravity, the water after defrost can flow downward, and is conducive to draining.
Preferably, the flat tube of parallel-flow heat exchanger, fin being carried out secondary surface treatment, it is preferable that plate hydrophobic material, the surface attraction of water is little, and after defrost, water can better flow downward under gravity；And flat tube configuration need not be changed, only need to carrying out secondary surface treatment on the basis of conventional flat tube, cost is low, need not change flat tube mould.
Preferably, defrost loop adopts the heat of thermal source (such as accumulator, motor, compressor) to carry out defrost, does not need the additional power supply heat, and cost is low, heat utilization ratio height, it is achieved unwanted heat again with.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be practiced according to the content of description, below with preferred embodiment of the present utility model and coordinate accompanying drawing describe in detail as after.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of parallel-flow heat exchanger that an embodiment of the present utility model provides；
Fig. 2 is the partial enlarged drawing of Fig. 1；
Fig. 3 is the longitudinal sectional view of the header of a kind of parallel-flow heat exchanger that an embodiment of the present utility model provides；
Fig. 4 is the side view of the header of a kind of parallel-flow heat exchanger that an embodiment of the present utility model provides；
Fig. 5 is the position relationship structural representation of the flat tube of a kind of parallel-flow heat exchanger that embodiment of the present utility model provides and fin and header；
Fig. 6 is the flowage structure schematic diagram in the first loop of a kind of parallel-flow heat exchanger that an embodiment of the present utility model provides；
Fig. 7 is the defrost principle schematic of a kind of parallel-flow heat exchanger that an embodiment of the present utility model provides.
Detailed description of the invention
For further setting forth that this utility model is reach technological means and effect that predetermined utility model purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to the detailed description of the invention of this utility model application, structure, feature and effect thereof, describe in detail as after.In the following description, what different " embodiments " or " embodiment " referred to is not necessarily same embodiment.Additionally, special characteristic in one or more embodiment, structure or feature can be combined by any suitable form.
As shown in Figure 1, Figure 2 and Figure 3, a kind of parallel-flow heat exchanger that an embodiment of the present utility model proposes, including first header the 10, second header 20 and be connected to the multiple flat tubes 30 between described first header 10 and described second header 20, described first header and described second header and all include two along header lengths direction parallel arranged and mutual disconnected cavity.
As it is shown on figure 3, each described flat tube 30 includes two passages, the two ends of each passage are respectively communicated with described first header 10 and described second header 20.Wherein, described first header 10 is connected by first passage 31 with the first cavity 41 of described second header 20, forms the first loop, and the medium in described first loop can obtain heat by external heat source, heats described flat tube 30 when flowing through described flat tube.
Described first header 10 is connected by second channel 32 with the second cavity 42 of described second header 20, forms second servo loop, and described second servo loop is connected with refrigerating/heating equipment, provides refrigerating/heating function for system.
The technical scheme that this utility model provides all includes two along header lengths direction parallel arranged and mutual disconnected cavity by making described first header and described second header, owing to each described flat tube includes two passages, the two ends of each passage are respectively communicated with described first header and described second header, wherein, described first header is connected by first passage with the first cavity of described second header, form the first loop, medium in described first loop can obtain heat by external heat source, makes the frost on described flat tube be heated thawing.And described first header is connected by second channel with the second cavity of described second header, forming second servo loop, described second servo loop is connected with refrigerating/heating equipment, for system offer refrigerating/heating function.Therefore while refrigerating/heating, it is possible to effectively prevent flat tube frosting, it is ensured that the normal operation of parallel-flow heat exchanger, it is to avoid frosting causes heat exchange wind resistance to increase, and improves heat exchange efficiency simultaneously.
Meanwhile, described first loop and described second servo loop integrate so that the volume of described parallel-flow heat exchanger is little, lightweight, and heat exchange efficiency is high.
Further, described first header 10 and be provided with dividing plate 40 in described second header 20 along its length, described first header 10 and described second header 20 are divided into disconnected first cavity 41 and the second cavity 42 mutually by described dividing plate 40 respectively.
Certainly, described first header 10 and described second header 20 can also by being spliced to form by two independent parts respectively, and a portion includes described first cavity 41, and another part includes described second cavity 42.
Further, the plurality of flat tube 30 can be parallel, and can be inclined between described first header 10 and described second header 20.Flat tube 30 slant setting can make the globule condensing on flat tube be easier under gravity, along inclined plane landing, be conducive to draining, thus effectively preventing the formation of frost.
Concrete, first cavity 41 of described first header 10 and described second header 20 may be at homonymy, correspondingly, second cavity 42 of described first header 10 and described second header 20 may be at homonymy, making that described first header 10 is corresponding with the first cavity 41 of described second header 20 to be connected, described first header 10 is corresponding with the second cavity 42 of described second header 20 to be connected.The side of described first cavity 41 can be higher than the side of described second cavity 42, or the side of described first cavity 41 can lower than the side of described second cavity 42.When described first cavity 41 or described second cavity 42 are near wind regime side, the wind that wind regime blows to described parallel-flow heat exchanger is along the direction of first cavity the 41 to the second cavity 42, or the direction along second cavity the 42 to the first cavity 41.At this moment, correspondingly, as shown in Figure 3 and Figure 5, the incline direction of described flat tube 30 should make the bulb portion of described first cavity 41 of connection higher or lower than the bulb portion connecting described second cavity 42, and makes the bulb portion of higher side near wind regime.So, under the action of the forces of the wind, the incline direction of described flat tube down the wind can make the globule landing from high to low on flat tube.Such as, general blower fan is in the rear side of parallel-flow heat exchanger, when described first cavity 41 is in the front side of parallel-flow heat exchanger, then makes the bulb portion bulb portion lower than described second cavity 42 place at described first cavity 41 place；And when described second cavity 42 is in the front side of parallel-flow heat exchanger, then make the bulb portion bulb portion higher than described second cavity 42 place at described first cavity 41 place.As it is shown in fig. 7, blower fan is blown in the direction of the arrow from the rear side of parallel-flow heat exchanger, it is easy to make the globule on flat tube down the wind along the landing of flat tube inclined-plane.
As shown in Figure 4, the medial surface of described first header 10 and described second header 20 can be provided with the first slot 401 and the second slot 402, and described first slot 401 is corresponding with described first cavity 41, and described second slot 402 is corresponding with described second cavity 42.Described dividing plate 40 can be arranged between described first slot 401 and described second slot 402.Described first slot 401 and the second slot 402 is inserted at the two ends of described flat tube 30 respectively, and connects with described first cavity 41 and described second cavity 42 respectively.
Further, as it is shown on figure 3, described flat tube 30 can be porous flat pipe, three through holes being wherein positioned at flat tube side are first passage 31, described first passage 31 connects with described first cavity 41, and all the other through holes are second channel 32, and described second channel 32 connects with described second cavity 42.Certainly, the number of openings of described first passage 31 is not limited to three, it is possible to adjust setting as required.Here illustrated as just a special applications.Generally, the via count of second channel 32 is more than the via count of first passage 31, to ensure that normal heat exchange works.
Further, as depicted in figs. 1 and 2, described parallel-flow heat exchanger can also include fin 50, and described fin 50 is arranged on described flat tube 30, and the outer surface of described flat tube 30 and/or described fin 50 can use hydrophobic material, it is possible to use water wetted material；Hydrophobic material, water wetted material is used to depend on the circumstances.When spacing of fin is relatively small, angle of inclination is less, adopting water wetted material, heat transfer effect, drainage are relatively better；When spacing of fin is relatively large, angle of inclination is bigger, adopting hydrophobic material, heat transfer effect, drainage are relatively better；Concrete condition is determined through test effect.Concrete, when spacing of fin is relatively large, angle of inclination is bigger, the outer surface of described flat tube 30 and/or described fin 50 has hydrophobicity, can so that the surface attraction of water reduces, water after defrost can better flow downward along the incline direction of flat tube under gravity, it is possible to avoids water large area on flat tube to gather.And owing to flat tube is obliquely installed, the fin being arranged on described flat tube also tilts simultaneously, it is more beneficial for the easy landing of the globule thereon.Preferably, it is possible to by carrying out secondary surface treatment at the outer surface of described flat tube 30 and/or described fin 50, for instance coating hydrophobic material reaches surface and has hydrophobic purpose.Here the method being not intended to coating, it is possible to be the method for surface spraying, it is also possible to be electric plating method, it is also possible to being other method, those skilled in the art can select as required, does not elaborate here and specifically limits.
Further, the medium in described first loop adopts heat exchange medium, it is preferable that can be water, owing to glassware for drinking water has heat exchange function, and relatively common, the flowing utilizing water is more convenient to transmit heat.Such as, the water in the first loop can obtain heat from described external heat source as medium, becomes the hot water of uniform temperature, enters circulation, and by its with heat pass to flat tube, make the melts on flat tube become water to drop.Certainly the medium in described first loop can also be other heat transferring medium, is not especially limited here.
Further, the medium in described second servo loop can be coolant.Coolant is in refrigerating and air conditioning system, in order to transferring heat energy, produces refrigerating effect.Coolant is a kind of intermediate material in process of refrigerastion, and it first accepts the cold of cold-producing medium and lowers the temperature, and then removes to cool down other cooled material again, and claiming this intermediate material is coolant.Refrigerating medium can be claimed again.Coolant has gas coolant, liquid and solid coolant, gas coolant mainly to have air etc.；Liquid coolant has water, saline etc.；Ice and dry ice etc. are used as solid coolant.Coolant such as freon (freon) conventional at present, widely uses in household electric refrigerator and air conditioner.
Owing to described second servo loop is connected with refrigerating/heating equipment, flowed in the second loop by described coolant, provide refrigerating/heating function for system.
Further, as shown in Figure 6, described first loop can also include control unit 60, and described control unit 60 can control the flowing of the medium in described first loop.Such as, described control unit 60 can include valve 61, and described valve 61 is connected in described first loop, by whether the medium in the first loop described in the on-off control of valve 61 flows.When valve 61 is opened, the media fraction of heat can flow in flat tube heating flat tube, and makes the frost on flat tube be heated thawing.When valve 61 ends, the medium in described first loop stops flowing, and the medium of heat cannot continue to flow into flat tube, thus stops heating flat tube.
Further, described valve 61 can be motor valve.Motor valve has valve electric actuator, and YE, with electric energy for main energy sources, is used for driving the switch of valve.
Simultaneously, described control unit 60 can also include sensor 62, and described sensor 62 can be arranged near described flat tube 30, for instance can be arranged on described flat tube 30, can also be arranged on from other position close to described flat tube 30, for detecting the outer surface whether frosting of described flat tube 30.
Such as, described sensor 62 can be arranged on the part of the first passage 31 of described flat tube 30.Described sensor 62 electrically connects with described motor valve, when described sensor 62 detects frosting on flat tube 30, described sensor 62 controls described motor valve and opens, the medium (such as hot water) with the heat of uniform temperature is made to flow through parallel-flow heat exchanger through described first loop, so that the frost on flat tube and/or fin is melted into water, and then drop along the inclined plane of flat tube and/or fin under wind and action of gravity.Simultaneously easy to control.
Further, described first loop can also include compression pump 70, and described compression pump 70 is connected in described first loop, and described compression pump 70 provides flowing desirable pressure to the medium in described first loop.Simultaneously, described compression pump 70 electrically connects with described sensor 62, when described sensor 62 detects frosting on flat tube 30, described sensor 62 controls while described motor valve opens, described sensor 62 controls described compression pump 70 and is energized work, promotes that the medium in the first loop is at the flow under pressure of compression pump 70.
Further, described first loop can also include reserving liquid tank 80, described reserving liquid tank 80 is made to make, near described external heat source, the medium heating being stored in described reserving liquid tank 80, when described motor valve is opened, medium in described reserving liquid tank 80 flows to parallel-flow heat exchanger, and the medium of the heat flowing through flat tube can heat flat tube.
Further, described external heat source can be the accumulator of air-conditioner and/or motor and/or compressor.Due to described first loop use the accumulator of air-conditioner, compressor, these heat generating components of motor heat be heated defrost, take full advantage of the energy, improve energy utilization efficiency, avoid the waste of heat simultaneously.
Citing below describes the specific works process in the first loop in detail, as shown in Figure 6, described first loop inner medium is water (or other heat transferring medium), the water in described first loop connects with the aqueous phase in reserving liquid tank 80 (i.e. water tank), the break-make in described first loop is controlled by valve 61 (motor valve), the flowing pressure of water in the first loop is provided by compression pump 70 (can be small pump), reserving liquid tank 80 is placed on by thermal source, and makes the water heating in reserving liquid tank 80；Described second servo loop is refrigerating/heating loop, and described second servo loop interior media is coolant.During parallel-flow heat exchanger normal operation, described first loop is controlled to close by valve 61, and described second servo loop circulates, and carries out normal heat exchange；When the sensor 62 of parallel-flow heat exchanger detects that flat tube surface starts frosting, control valve 61 to open, compression pump 70 is energized work, the hot water in reserving liquid tank 80 is made to flow through parallel-flow heat exchanger through described first loop, so that the melts Cheng Shui on flat tube, owing to fin 50, flat tube 30 surface are hydrophobic material, and fin 50, flat tube 30 are slant setting, there is blower fan to blow at the rear of parallel-flow heat exchanger simultaneously, so, wind-force, gravity, hydrophobic layer effect under, make water droplet drop after flowing downward parallel-flow heat exchanger；The frost detected on flat tube when the sensor 62 of parallel-flow heat exchanger has been changed, and namely described sensor 62 controls valve 61, compression pump 70 cuts out, and now described first loop quits work；In whole process, described second servo loop remains normal operation.
A kind of air-conditioner that another embodiment of the present utility model proposes, including housing and parallel-flow heat exchanger.Described parallel-flow heat exchanger is arranged in described housing.
Described parallel-flow heat exchanger, including the first header, the second header and be connected to the multiple flat tubes between described first header and described second header, described first header and described second header all include two along header lengths direction parallel arranged and mutual disconnected cavity；
Each described flat tube includes two passages, and the two ends of each described passage are respectively communicated with described first header and described second header；
Wherein, described first header is connected by the first passage of described flat tube with the first cavity of described second header, forms the first loop, and the medium in described first loop can obtain heat by external heat source；
Described first header is connected by the second channel of described flat tube with the second cavity of described second header, forms second servo loop, and described second servo loop is connected with refrigerating/heating equipment.
The detailed description of the invention of described parallel-flow heat exchanger, referring particularly to the detailed description of the invention in a upper embodiment, repeats no more here.
Further, described external heat source is the accumulator of air-conditioner and/or motor and/or compressor.Due to described first loop use the accumulator of air-conditioner, compressor, these heat generating components of motor heat be heated defrost, take full advantage of the energy, improve energy utilization efficiency, avoid the waste of heat simultaneously.
The technical scheme that this utility model provides all includes two along header lengths direction parallel arranged and mutual disconnected cavity by making described first header and described second header, owing to each described flat tube includes two passages, the two ends of each passage are respectively communicated with described first header and described second header, wherein, described first header is connected by first passage with the first cavity of described second header, form the first loop, medium in described first loop can obtain heat by external heat source, makes the frost on described flat tube be heated thawing.And described first header is connected by second channel with the second cavity of described second header, forming second servo loop, described second servo loop is connected with refrigerating/heating equipment, for system offer refrigerating/heating function.Therefore while refrigerating/heating, it is possible to effectively prevent flat tube frosting, it is ensured that the normal operation of parallel-flow heat exchanger, it is to avoid frosting causes heat exchange wind resistance to increase, and improves heat exchange efficiency simultaneously.
The above, it it is only preferred embodiment of the present utility model, not this utility model is done any pro forma restriction, any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model, all still falls within the scope of technical solutions of the utility model.
Claims (14)
1. a parallel-flow heat exchanger, including the first header, the second header and be connected to the multiple flat tubes between described first header and described second header, it is characterised in that
Described first header and described second header all include two along header lengths direction parallel arranged and mutual disconnected cavity；
Each described flat tube includes two passages, and the two ends of each described passage are respectively communicated with described first header and described second header；
Wherein, described first header is connected by the first passage of described flat tube with the first cavity of described second header, forms the first loop, and the medium in described first loop can obtain heat by external heat source；
Described first header is connected by the second channel of described flat tube with the second cavity of described second header, forms second servo loop, and described second servo loop is connected with refrigerating/heating equipment.
2. parallel-flow heat exchanger according to claim 1, it is characterised in that
Being provided with dividing plate along its length in described first header and described second header, the inner chamber of described first header and described second header is divided into disconnected first cavity and the second cavity mutually by described dividing plate respectively.
3. parallel-flow heat exchanger according to claim 1 and 2, it is characterised in that
The plurality of flat tube is parallel, and is inclined between described first header and described second header.
4. parallel-flow heat exchanger according to claim 3, it is characterised in that
First cavity of described first header and described second header is in homonymy, and the second cavity of described first header and described second header is in homonymy；
Described second cavity is near wind regime side, the wind that wind regime blows to the described parallel-flow heat exchanger direction along the second cavity to the first cavity；
The direction that described flat tube tilts is that the bulb portion making described first cavity of connection is lower than the bulb portion connecting described second cavity.
5. parallel-flow heat exchanger according to claim 1 and 2, it is characterised in that
Each described flat tube includes multiple through hole, and three through holes being wherein positioned at flat tube side are first passage, and all the other through holes are second channel；And the via count of second channel is more than the via count of first passage.
6. parallel-flow heat exchanger according to claim 3, it is characterised in that also include:
Fin, described fin is arranged on described flat tube；
The outer surface of described flat tube and/or described fin has coating, described coating to be hydrophobic or water wetted material.
7. parallel-flow heat exchanger according to claim 1 and 2, it is characterised in that
Medium in described first loop is heat exchange medium, and the medium in described second servo loop is coolant.
8. parallel-flow heat exchanger according to claim 1 and 2, it is characterised in that
Described first loop also includes control unit, and described control unit controls the flowing of the medium in described first loop.
9. parallel-flow heat exchanger according to claim 8, it is characterised in that
Described control unit includes valve, and described valve is connected in described first loop.
10. parallel-flow heat exchanger according to claim 9, it is characterised in that
Described valve is motor valve；
Described control unit also includes sensor, and described sensor is arranged near described flat tube, for detecting the outer surface whether frosting of described flat tube；
Described sensor electrically connects with described motor valve.
11. parallel-flow heat exchanger according to claim 10, it is characterised in that
Described first loop also includes compression pump, and described compression pump is connected in described first loop.
12. parallel-flow heat exchanger according to claim 1 and 2, it is characterized in that, described first loop also includes reserving liquid tank, and described reserving liquid tank medium in described external heat source, described reserving liquid tank obtains heat by described external heat source and can flow in described first loop.
13. an air-conditioner, it is characterised in that including:
Housing；And
Parallel-flow heat exchanger according to any one of claim 1～12；
Described parallel-flow heat exchanger is arranged in described housing.
14. air-conditioner according to claim 13, it is characterised in that
Described external heat source is the accumulator of air-conditioner and/or motor and/or compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620077707.7U CN205373156U (en) | 2016-01-25 | 2016-01-25 | Parallel flow heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620077707.7U CN205373156U (en) | 2016-01-25 | 2016-01-25 | Parallel flow heat exchanger and air conditioner |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546879A (en) * | 2016-01-25 | 2016-05-04 | 珠海格力电器股份有限公司 | Parallel flow heat exchanger and air conditioner |
| CN105571349A (en) * | 2016-02-18 | 2016-05-11 | 珠海格力电器股份有限公司 | Heat exchanger |
| CN108151555A (en) * | 2018-01-03 | 2018-06-12 | 格力电器（合肥）有限公司 | Heat exchanger and air conditioner with same |
| CN108277625A (en) * | 2017-01-05 | 2018-07-13 | 东芝生活电器株式会社 | Clothesdrier |
| CN119436623A (en) * | 2025-01-06 | 2025-02-14 | 浙江兰通空调设备有限公司 | Automobile air conditioner condenser with rapid drainage structure and application method thereof |
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2016
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546879A (en) * | 2016-01-25 | 2016-05-04 | 珠海格力电器股份有限公司 | Parallel flow heat exchanger and air conditioner |
| WO2017129109A1 (en) * | 2016-01-25 | 2017-08-03 | 珠海格力电器股份有限公司 | Parallel flow heat exchanger and air conditioner |
| CN105571349A (en) * | 2016-02-18 | 2016-05-11 | 珠海格力电器股份有限公司 | Heat exchanger |
| CN108277625A (en) * | 2017-01-05 | 2018-07-13 | 东芝生活电器株式会社 | Clothesdrier |
| CN108151555A (en) * | 2018-01-03 | 2018-06-12 | 格力电器（合肥）有限公司 | Heat exchanger and air conditioner with same |
| CN108151555B (en) * | 2018-01-03 | 2024-08-09 | 格力电器（合肥）有限公司 | Heat exchanger and air conditioner with same |
| CN119436623A (en) * | 2025-01-06 | 2025-02-14 | 浙江兰通空调设备有限公司 | Automobile air conditioner condenser with rapid drainage structure and application method thereof |
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