CN106440324B - Heat exchanger and air conditioner adopting same - Google Patents

Heat exchanger and air conditioner adopting same Download PDF

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Publication number
CN106440324B
CN106440324B CN201611118490.0A CN201611118490A CN106440324B CN 106440324 B CN106440324 B CN 106440324B CN 201611118490 A CN201611118490 A CN 201611118490A CN 106440324 B CN106440324 B CN 106440324B
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Prior art keywords
heat exchanger
heat exchange
plate
air conditioner
heat transfer
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CN201611118490.0A
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CN106440324A (en
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陈军
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陈军
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • F24F13/222Means for preventing condensation or evacuating condensate for evacuating condensate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations

Abstract

The invention discloses a heat exchanger and an air conditioner adopting the same, and the heat exchanger comprises a plurality of layers of heat exchange pipelines which are arranged at intervals up and down, wherein heat exchange fins are arranged between the adjacent layers of heat exchange pipelines, a plurality of liquid discharge holes are respectively formed in the upper side and the lower side of each heat exchange fin, an installation boss is formed between the adjacent liquid discharge holes, and the heat exchange pipelines are connected with the installation bosses. The heat exchanger and the air conditioner adopting the heat exchanger provided by the invention can effectively improve the water drainage speed outside the heat exchanger and reduce the defrosting time.

Description

Heat exchanger and air conditioner adopting same
Technical Field
The invention relates to the technical field of heat transfer and heat exchange, in particular to a heat exchanger and an air conditioner adopting the same.
Background
Many heat exchangers require heat exchange operation at relatively low temperatures, such as evaporators in air conditioners. If the heat exchanger works under the working condition of low temperature all the time, the condensed water is easy to condense and even frost is easy to form outside the heat exchanger. When condensate water is formed outside the heat exchanger, the condensate water needs to be drained in time. Otherwise, the condensed water is easily frosted. When the frost layer outside the heat exchanger is thick, defrosting operation needs to be carried out on the heat exchanger, so that the frost layer is heated to be changed into water to flow away. Because if the condensed water layer or the frost layer always covers the surface of the heat exchanger, the convection efficiency of the fluid inside and outside the heat exchanger is reduced, even the convection cannot be realized, and finally the heat exchange effect of the heat exchanger is greatly reduced.
At present, the condition that the condensate water discharging speed is slow occurs in a plurality of heat exchangers, and the condensate water discharging speed is slow, so that the frost layer is formed faster and thicker. During defrosting, a large amount of defrosting water is not discharged in time, so that defrosting operation cannot be finished within a specified time, the defrosting time needs to be prolonged, and the working efficiency of the heat exchanger is reduced. Such problems are particularly pronounced when the diameter of the heat exchange tubes is small.
Therefore, it is necessary to develop a heat exchanger capable of effectively increasing the condensate water discharge speed.
Disclosure of Invention
One object of the present invention is: provided is a heat exchanger capable of effectively increasing the speed of water drainage outside the heat exchanger.
Another object of the invention is: provides an air conditioner which can rapidly remove condensed water and defrosting water and reduce defrosting time.
In order to achieve the purpose, the invention adopts the following technical scheme:
on the one hand, the heat exchanger comprises a plurality of layers of heat exchange pipelines arranged at intervals from top to bottom, wherein heat exchange fins are arranged between adjacent layers of heat exchange pipelines, a plurality of liquid discharge holes are formed in the upper side and the lower side of each heat exchange fin, an installation boss is formed between the adjacent liquid discharge holes, and the heat exchange pipelines are connected with the installation bosses.
Specifically, the upper side and the lower side of each heat exchange fin are provided with drain holes arranged at intervals, and condensed water or defrosting water on the outer surface of the heat exchange pipeline arranged on the mounting boss can directly fall down through the drain holes, so that the drainage speed of the condensed water or the defrosting water is ensured.
Moreover, if the upper side and the lower side of the heat exchange fins are straight, the height of the drainage channel is the height of the heat exchange pipe as the heat exchange pipe is arranged between the heat exchange fins of the adjacent layers. If the heat exchange fins are provided with the liquid discharge holes and the mounting bosses and the heat exchange pipelines are arranged on the mounting bosses, the height of the drainage channel is greater than that of the heat exchange tubes. This design can guarantee under the unchangeable condition of original heat exchanger overall dimension, effectual increase drainage channel's height, and then increase drainage channel's cross-sectional area. The condensed water or the defrosting water flowing down from the heat exchange pipeline is ensured to be discharged outwards through the drainage channel with larger cross section area, so that the drainage speed is obviously accelerated.
As a preferred embodiment, the heat exchange fin includes a plurality of vertical plates, adjacent vertical plates are connected by a transition plate, and the liquid discharge hole is opened on the transition plate.
Specifically, the height of the vertical plate is changed to change the spacing distance between adjacent heat exchange pipelines, so that the area of the heat exchange fins corresponding to the heat exchange pipelines in unit volume is changed. The transition plate connects the heat exchange pipeline with the vertical plate.
Further, the vertical plate is a flat plate, a corrugated plate or a louver plate, the vertical plate is vertically arranged or obliquely arranged, and the transition plate is a flat plate or an arc-shaped plate.
Specifically, the cross-sectional shape of the corrugated plate in one direction is wavy.
Preferably, the vertical plate is a flat plate, the vertical plate is vertically arranged or obliquely arranged, the transition plate is a flat plate, and the transition plate is horizontally arranged.
Preferably, the vertical plate is a corrugated plate, the vertical plate is vertically arranged or obliquely arranged, the transition plate is a flat plate, and the transition plate is horizontally arranged.
Preferably, the vertical plate is a louver plate, the vertical plate is vertically arranged or obliquely arranged, the transition plate is a flat plate, and the transition plate is horizontally arranged.
Preferably, the vertical plate is a flat plate, the vertical plate is vertically or obliquely arranged, the transition plate is an arc-shaped plate, and the transition plate protrudes towards one side far away from or close to the vertical plate.
Preferably, the vertical plate is a corrugated plate, the vertical plate is vertically or obliquely arranged, the transition plate is an arc-shaped plate, and the transition plate protrudes towards one side far away from or close to the vertical plate.
Preferably, the vertical plate is a louver plate, the vertical plate is vertically or obliquely arranged, the transition plate is an arc-shaped plate, and the transition plate protrudes towards one side far away from or close to the vertical plate.
Further, the liquid discharge holes are arranged on the transition plate at equal intervals.
Specifically, the liquid discharge holes are arranged at equal intervals, so that the processing technology can be effectively simplified, and the production cost is reduced.
In a preferred embodiment, each layer of the heat exchange tubes comprises a plurality of microchannel tubes arranged at intervals.
Specifically, compared with the traditional copper pipe, the micro-channel heat exchanger has the advantages of large heat exchange area corresponding to unit volume, good heat exchange effect and high generation speed of condensed water or defrosting water. Meanwhile, the microchannel heat exchanger is generally flat and has small thickness, and when the microchannel heat exchanger is used as an evaporator, the height of the drainage channel is the thickness of the microchannel heat exchanger. If no drainage hole and no installation boss are additionally arranged, the cross-sectional area of the drainage channel is very small, and the drainage channel is easily blocked by a water film formed by condensed water or defrosting water, so that the condensed water or the defrosting water cannot be drained away in time.
Further, the microchannel tubes are distributed at equal intervals.
Specifically, the microchannel tubes are arranged at equal intervals, so that the processing technology can be effectively simplified, and the production cost is reduced.
Further, the distance between the edges of the adjacent liquid discharge holes is equal to the pipe diameter of the microchannel pipe.
Specifically, the interval distance of the liquid discharge holes is set to be equal to the pipe diameter of the microchannel pipe. Namely, the width of the mounting boss is equal to the pipe diameter of the microchannel pipe.
Specifically, the width of the mounting boss refers to a dimension of the mounting boss perpendicular to the axial direction of the microchannel tube.
Further, the distance between the edges of the adjacent microchannel tubes is equal to the width of the liquid discharge hole.
Specifically, the width of the drain hole refers to the dimension of the drain hole perpendicular to the direction of the microchannel tube. The spacing distance of the microchannel tubes is set to be equal to the width of the drain hole. The micro-channel pipe can be prevented from blocking the orifice of the liquid discharge hole and influencing the rapid liquid discharge of the liquid discharge hole.
On the other hand, the air conditioner comprises a compressor, a throttling device and the heat exchanger according to any one of the embodiments, wherein an outlet of the compressor is communicated with an inlet of the throttling device, an inlet of the heat exchanger is communicated with an outlet of the throttling device, and an outlet of the heat exchanger is communicated with an inlet of the compressor.
Specifically, when the heat exchanger disclosed by the embodiment of the invention is used as an evaporator of an air conditioner, the condensed water drainage speed of the evaporator can be effectively improved, so that the defrosting time is reduced, and the refrigerating capacity or the heating capacity of the air conditioner in unit time is increased.
As a preferred implementation, the heat exchanger according to any one of the above embodiments is further included between the outlet of the compressor and the inlet of the throttling device.
Particularly, the condenser is also set as the heat exchanger disclosed by the invention, so that the air conditioner can quickly realize water drainage under both refrigeration and heating conditions.
The invention has the beneficial effects that: the utility model provides a heat exchanger and adopt its air conditioner, through set up outage and installation boss on heat transfer fin, make the flow area grow of rivers, and then under the unchangeable circumstances of original heat exchanger overall dimension, the outside drainage rate of effectual improvement heat exchanger.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
FIG. 1 is a schematic three-dimensional view of a heat exchange fin according to a first embodiment;
FIG. 2 is a three-dimensional schematic view of a heat exchanger according to a first embodiment;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic side view of a heat exchanger according to a first embodiment;
fig. 5 is a schematic partial exploded view at B in fig. 4.
In fig. 1 to 5:
1. heat exchange fins; 101. mounting a boss; 102. a drain hole;
2. a heat exchange conduit; 201. a microchannel tube.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
As shown in fig. 1 to 5, a heat exchanger includes a plurality of layers of heat exchange pipes 2 arranged at an interval from top to bottom, heat exchange fins 1 are installed between adjacent layers of heat exchange pipes 2, a plurality of liquid discharge holes 102 are respectively formed in the upper and lower sides of each heat exchange fin 1, an installation boss 101 is formed between adjacent liquid discharge holes 102, and the heat exchange pipes 2 are connected with the installation boss 101. Wherein, heat transfer fin 1 includes the riser of a plurality of slope settings, and of course, the riser also can be vertical setting, and in this embodiment, the riser is the flat board, and in other embodiments, the riser also can be buckled plate or shutter board. The adjacent vertical plates are connected through a horizontally arranged transition plate, the transition plate is a flat plate, and the liquid discharge holes 102 are arranged on the transition plate at equal intervals. In other embodiments, the transition plate may also be an arc-shaped plate protruding to a side away from the vertical plate or an arc-shaped plate protruding to a side close to the vertical plate.
The upper side and the lower side of the heat exchange fin 1 are provided with the liquid discharge holes 102 which are arranged at intervals, and condensed water or defrosting water on the outer surface of the heat exchange pipeline 2 arranged on the mounting boss 101 can directly fall down through the liquid discharge holes 102, so that the drainage speed of the condensed water or the defrosting water is ensured. Furthermore, if the upper and lower sides of the heat exchange fins 1 are straight, since the heat exchange pipes 2 are disposed between the heat exchange fins 1 of adjacent layers, the height of the drainage channel is the height of the heat exchange pipe 2. If the heat exchange fin 1 is provided with the liquid discharge hole 102 and the mounting boss 101, and the heat exchange pipe 2 is arranged on the mounting boss 101, the height of the water discharge channel is greater than that of the heat exchange pipe. This design can guarantee under the unchangeable condition of original heat exchanger overall dimension, effectual increase drainage channel's height, and then increase drainage channel's cross-sectional area. The condensed water or the defrosting water flowing down from the heat exchange pipeline 2 is ensured to be discharged outside through the drainage channel with larger cross section area, so that the drainage speed is obviously accelerated.
Each layer of heat exchange tubes 2 comprises a plurality of microchannel tubes 201 arranged at equal intervals, which may, of course, be copper tubes. The distance between the edges of the adjacent drain holes 102 is equal to the diameter of the microchannel tube 201, and the distance between the edges of the adjacent microchannel tube 201 is equal to the width of the drain holes 102.
The width of the mounting boss 101 refers to the dimension of the mounting boss 101 perpendicular to the axial direction of the microchannel tube 201. The width of the drain hole 102 refers to the dimension of the drain hole 102 perpendicular to the axial direction of the microchannel tube 201. Setting the spacing distance of the liquid discharge holes 102 to be equal to the pipe diameter of the microchannel pipe 201, namely setting the width of the mounting boss 101 to be equal to the pipe diameter of the microchannel pipe 201; the microchannel tubes 201 are spaced apart by a distance equal to the width of the drain holes 102. The arrangement can prevent the diameter of the microchannel pipe 201 from being too large, blocking the opening of the liquid discharge hole 102 and affecting liquid discharge.
Compared with the traditional copper pipe, the micro-channel heat exchanger has the advantages of large heat exchange area corresponding to unit volume, good heat exchange effect and high generation speed of condensed water or defrosting water. Meanwhile, the microchannel heat exchanger is generally flat and has small thickness, and when the microchannel heat exchanger is used as an evaporator, the height of the drainage channel is the thickness of the microchannel heat exchanger. If the drain hole 102 and the mounting boss 101 are not additionally arranged, the cross-sectional area of the drain channel is very small, and the drain channel is easily blocked by a water film formed by condensed water or defrosting water, so that the condensed water or the defrosting water cannot be drained in time. The microchannel tubes 201 are arranged at equal intervals, so that the processing technology can be effectively simplified, and the production cost is reduced.
Example two
An air conditioner comprises a compressor, a throttling device and a heat exchanger, wherein an outlet of the compressor is communicated with an inlet of the throttling device, the heat exchanger can accelerate the water drainage speed in the first embodiment, an inlet of a heat exchange pipeline 2 of the heat exchanger is communicated with an outlet of the throttling device, and an outlet of the heat exchange pipeline 2 is communicated with an inlet of the compressor; a condenser is also arranged between the outlet of the compressor and the inlet of the throttling device.
Specifically, when the heat exchanger disclosed by the embodiment of the invention is used as an evaporator of an air conditioner, the condensed water drainage speed of the evaporator can be effectively improved, so that the defrosting time is reduced, and the refrigerating capacity or the heating capacity of the air conditioner in unit time is increased.
In this embodiment, the condenser may be a heat exchanger capable of increasing the drainage speed in any one of the first to third embodiments. Particularly, the condenser is also set as the heat exchanger disclosed by the invention, so that the air conditioner can quickly realize water drainage under both refrigeration and heating conditions.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention and the technical principles used, and any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein should be covered within the protective scope of the present invention.

Claims (6)

1. The utility model provides a heat exchanger, its characterized in that includes the multilayer heat transfer pipeline that upper and lower interval set up, installs heat transfer fin between the adjacent layer heat transfer pipeline, a plurality of outage holes have all been seted up to heat transfer fin's upper and lower both sides, and are adjacent form the installation base between the outage hole, heat transfer pipeline with the installation base is connected, heat transfer fin includes a plurality of risers, and is adjacent connect through crossing the cab apron between the riser, cross the impartial interval setting on the cab apron the outage, every layer heat transfer pipeline includes a plurality of spaced arrangement's microchannel pipe, and is adjacent the distance at the border of outage equals the pipe diameter of microchannel pipe.
2. The heat exchanger according to claim 1, wherein the vertical plate is a flat plate or a corrugated plate or a louver plate, the vertical plate is vertically arranged or obliquely arranged, and the transition plate is a flat plate or an arc plate.
3. The heat exchanger of claim 1, wherein the microchannel tubes are equally spaced.
4. The heat exchanger of claim 1, wherein the distance between the edges of adjacent microchannel tubes is equal to the width of the drain hole.
5. An air conditioner, comprising a compressor and a throttling device, wherein an outlet of the compressor is communicated with an inlet of the throttling device, the air conditioner is characterized by further comprising the heat exchanger of any one of claims 1 to 4, an inlet of the heat exchanger is communicated with an outlet of the throttling device, and an outlet of the heat exchanger is communicated with an inlet of the compressor.
6. The air conditioner according to claim 5, further comprising a heat exchanger according to any one of claims 1 to 4 between the outlet of the compressor and the inlet of the throttling device.
CN201611118490.0A 2016-12-07 2016-12-07 Heat exchanger and air conditioner adopting same Active CN106440324B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611118490.0A CN106440324B (en) 2016-12-07 2016-12-07 Heat exchanger and air conditioner adopting same

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Application Number Priority Date Filing Date Title
CN201611118490.0A CN106440324B (en) 2016-12-07 2016-12-07 Heat exchanger and air conditioner adopting same

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CN106440324A CN106440324A (en) 2017-02-22
CN106440324B true CN106440324B (en) 2022-02-08

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6432613B2 (en) * 2017-01-13 2018-12-05 ダイキン工業株式会社 Water heat exchanger

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11101594A (en) * 1997-09-26 1999-04-13 Toyo Radiator Co Ltd Heat exchanger for air-conditioning
JP4503682B1 (en) * 2009-04-22 2010-07-14 シャープ株式会社 Heat exchanger and air conditioner equipped with the same
CN101995172A (en) * 2010-11-02 2011-03-30 金龙精密铜管集团股份有限公司 Micro-channel heat exchanger and equipment using same
CN202329338U (en) * 2011-11-16 2012-07-11 陈苏红 Holey fin of evaporator of air-conditioning device
CN204313688U (en) * 2014-11-28 2015-05-06 杭州三花微通道换热器有限公司 Fin and the heat exchanger with this fin
CN206459330U (en) * 2016-12-07 2017-09-01 陈军 A kind of heat exchanger and use its air-conditioning

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11101594A (en) * 1997-09-26 1999-04-13 Toyo Radiator Co Ltd Heat exchanger for air-conditioning
JP4503682B1 (en) * 2009-04-22 2010-07-14 シャープ株式会社 Heat exchanger and air conditioner equipped with the same
CN101995172A (en) * 2010-11-02 2011-03-30 金龙精密铜管集团股份有限公司 Micro-channel heat exchanger and equipment using same
CN202329338U (en) * 2011-11-16 2012-07-11 陈苏红 Holey fin of evaporator of air-conditioning device
CN204313688U (en) * 2014-11-28 2015-05-06 杭州三花微通道换热器有限公司 Fin and the heat exchanger with this fin
CN206459330U (en) * 2016-12-07 2017-09-01 陈军 A kind of heat exchanger and use its air-conditioning

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