CN109539634A - A kind of micro-channel heat exchanger and air conditioner - Google Patents
A kind of micro-channel heat exchanger and air conditioner Download PDFInfo
- Publication number
- CN109539634A CN109539634A CN201811467282.0A CN201811467282A CN109539634A CN 109539634 A CN109539634 A CN 109539634A CN 201811467282 A CN201811467282 A CN 201811467282A CN 109539634 A CN109539634 A CN 109539634A
- Authority
- CN
- China
- Prior art keywords
- tube
- heat exchanger
- gas collecting
- heat exchange
- exchange unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
- F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels
Abstract
The invention discloses a kind of micro-channel heat exchanger and air conditioners, micro-channel heat exchanger includes several heat exchange units, heat exchange unit includes collector tube, gas collecting tube and several heat exchanger tubes, heat exchanger tube is connected to collector tube and gas collecting tube, gas collecting tube is located above or below collector tube, one end of collector tube is refrigerant inlet end, and the other end is closed end.At least two heat exchanger tubes are vertically arranged, and parallel between two neighboring heat exchanger tube, the length of the closed end heat exchanger tube from the refrigerant inlet end of collector tube to collector tube is gradually smaller or gradually increases, and fin is equipped between two neighboring heat exchanger tube.The invention also provides a kind of air conditioners, including micro-channel heat exchanger described in any one among the above.Compared with the prior art, this invention ensures that the liquid refrigerants entered in heat exchange unit can be put aside without outflow heat exchanger in heat exchanger in the case where no vaporization, so that is flowed out from refrigerant exit is gaseous coolant.
Description
Technical field
The present invention relates to air-conditioning technical fields, more particularly to a kind of micro-channel heat exchanger and air conditioner.
Background technique
Micro-channel heat exchanger is a kind of new type high efficient heat exchanger, high, small in size, light weight, charging amount with heat transfer efficiency
It the advantages that few, is in high volume promoted the use of on outdoor single cooler already.
But existing micro-channel heat exchanger has the following problems: when the heat that air side can be taken away is greater than liquid refrigerants
When completely vaporizing into heat required for gaseous coolant, i.e., when in heat exchanger liquid refrigerants have not been able to completely vaporize into gaseous coolant
When, have the case where liquid refrigerants is flowed out from refrigerant exit.
Summary of the invention
When liquid refrigerants does not completely vaporize into gaseous coolant in the prior art for solution, liquid refrigerants is had from refrigerant exit
The problem of outflow, the present invention provide a kind of micro-channel heat exchanger and air conditioner, can guarantee liquid refrigerants stay in heat exchanger and
It will not be from refrigerant exit outflow heat exchanger.
The technical solution adopted by the present invention is that: a kind of micro-channel heat exchanger, including several heat exchange units are provided, heat exchange is single
Member includes horizontally disposed collector tube, the gas collecting tube being obliquely installed and several heat exchange between collector tube and gas collecting tube
Pipe, heat exchanger tube connection collector tube and gas collecting tube, gas collecting tube are located above or below collector tube, one end of collector tube for refrigerant into
Mouth end, the other end are closed end, and the upper end of the first gas collecting tube is refrigerant exit end.
The heat exchanger tube is vertically arranged.
The heat exchanger tube is vertically arranged, and the number of heat exchange tubes is at least two, parallel between two neighboring heat exchanger tube, from
The refrigerant inlet end of collector tube to collector tube closed end heat exchanger tube length it is gradually smaller or gradually increase.
The number of heat exchange tubes is at least two, is equipped with fin between two neighboring heat exchanger tube, and the fin is wave-shaped,
The heat exchanger tube uses flat tube.
The heat exchange unit quantity is two, respectively the first heat exchange unit and the second heat exchange unit, the first heat exchange unit
It is setting up and down and disconnected with the second heat exchange unit, wherein；It is single that first gas collecting tube of the first heat exchange unit is located at the first heat exchange
The lower section of first collector tube of member, the refrigerant exit end of the first gas collecting tube is located at the closed end of the first collector tube, the first gas collecting tube
Lower end be located at the first collector tube refrigerant inlet end underface, the both ends of the first heat exchanger tube of the first heat exchange unit respectively with
First collector tube and the connection of the first gas collecting tube；Second gas collecting tube of the second heat exchange unit is located at the second liquid collecting of the second heat exchange unit
The top of pipe, the refrigerant exit end of the second gas collecting tube are located at the surface of the closed end of the second collector tube, under the second gas collecting tube
End be located at the second collector tube refrigerant inlet end, the both ends of the second heat exchanger tube of the second heat exchange unit respectively with the second collector tube and
The connection of second gas collecting tube.
The lower end of second gas collecting tube is connected to the second collector tube, and first gas collecting tube is parallel with the second gas collecting tube to be set
It sets.
The invention also provides a kind of air conditioners, including Thermal Performance of Micro Channels described in any one of above-mentioned technical proposal
Device.
Compared with the prior art, the present invention has the advantages that this invention ensures that the liquid entered in heat exchange unit is cold
Matchmaker can put aside without outflow heat exchanger in heat exchanger in the case where no vaporization, so that being from what refrigerant exit flowed out
Gaseous coolant.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of micro-channel heat exchanger in the present invention.
Specific embodiment
With reference to the accompanying drawing and the principle of the present invention and structure is described in detail in embodiment.
As shown in Figure 1, the micro-channel heat exchanger proposed in the present invention, including several heat exchange units, heat exchange unit include
Horizontally disposed collector tube, the gas collecting tube being obliquely installed and several heat exchanger tubes between collector tube and gas collecting tube, heat exchange
Pipe connection collector tube and gas collecting tube, gas collecting tube are located above or below collector tube, and one end of collector tube is refrigerant inlet end, separately
One end is closed end, and the upper end of the first gas collecting tube is refrigerant exit end.
In the present embodiment, heat exchange unit quantity is two, respectively the first heat exchange unit 10 and the second heat exchange unit 20, the
One heat exchange unit 10 is setting up and down with the second heat exchange unit 20 and is not connected to.
The left end of first collector tube 1 is refrigerant inlet end, and the right end of the first collector tube 1 is closed end.First heat exchange unit
10 the first gas collecting tube 2 is located at the lower section of the first collector tube 1 of first heat exchange unit 10, and the refrigerant of the first gas collecting tube 2 goes out
Mouth end is located at the closed end of the first collector tube 1, and the lower end of the first gas collecting tube 2 is located at the refrigerant inlet end of first collector tube 1
Underface, the both ends of the first heat exchanger tube 5 of the first heat exchange unit 10 are connected to the first collector tube 1 and the first gas collecting tube 2 respectively.
The upper end of first gas collecting tube 2 connects the right end of the first collector tube 1, the right end of the first collector tube 1 and the first gas collecting tube 2
It is not communicated with.The upper end of first gas collecting tube 2 is refrigerant exit end, and the lower end of the first gas collecting tube 2 is closed end, and the first gas collecting tube
2 upper end is the outlet of the first heat exchange unit 10 with the extraneous extreme higher position for carrying out mass exchange.
At least two first heat exchanger tubes 5, the vertical cloth of the first heat exchanger tube 5 are equipped between first collector tube 1 and the first gas collecting tube 2
It sets.The upper end of first heat exchanger tube 5 is connected to the first collector tube 1, and the lower end of the first heat exchanger tube 5 is connected to the first gas collecting tube 2, adjacent
It is arranged in parallel between two the first heat exchanger tubes 5, the length of the first heat exchanger tube 5 is from the refrigerant inlet end of the first collector tube 1 to first
The closed end of collector tube 1 is gradually reduced and (can also be gradually increased), flows into the first liquid collecting from the refrigerant inlet end of the first collector tube 1
The liquid refrigerants of pipe 1 can be flowed into the first heat exchanger tube 5 by the port between the first heat exchanger tube 5 and the first collector tube 1.
The first fin 6 is equipped between two neighboring first heat exchanger tube 5, the left and right sides of the first fin 6 is separately connected adjacent
The outer wall of two the first heat exchanger tubes 5, the first fin 6 are wave-shaped.
First heat exchanger tube 5 uses flat tube.
First heat exchange unit 10 set there are two with the extraneous port for carrying out mass exchange, respectively a left side for the first collector tube 1
The right end at end and the first gas collecting tube 2, the left end of the first collector tube 1 flow into liquid refrigerants, and gaseous coolant is along the first gas collecting tube 2 from the
It flows out the upper end of one gas collecting tube 2.
When heat exchanger work, the liquid refrigerants for entering the first heat exchange unit 10 can flow under the influence of gravity into vertical cloth
In the first heat exchanger tube of each item 5 set, liquid refrigerants absorbs the heat that fin 6 provides to which gasification is gaseous coolant, can deposit at this time
In two kinds of situations: when can completely vaporize after liquid refrigerants enters the first heat exchanger tube 5, gaseous refrigerant can be from the first gas collection
Pipe 2 flows out the first heat exchange unit 10；It is gaseous cold without completely vaporizing after liquid refrigerants enters the first heat exchanger tube 5
Matchmaker can flow out the first heat exchange unit 10 along the first gas collecting tube 2, and the refrigerant of liquid then can be under the effect of gravity along the first collection
Tracheae 2 flows to the bottom of the first heat exchange unit 10, and continuation is evaporated up in the first heat exchange unit 10 to be completely vaporized, if savings
Liquid refrigerants in 10 bottom of the first heat exchange unit is excessive so that the bottom of longer first heat exchanger tube 5 of length is blocked, at this time
The gaseous coolant for 5 the inside of the first heat exchanger tube that bottom is plugged can be flowed out from the top of the first heat exchanger tube 5, along the first collector tube
1 flow to the first heat exchanger tube close to outlet side, finally flows out the first heat exchange unit from the first gas collecting tube 2.This ensure that into
Liquid refrigerants to the first heat exchange unit 10 can be put aside in heat exchanger in the case where no vaporization without outflow heat exchanger,
So that is flowed out from refrigerant exit is gaseous coolant.
The left end of second collector tube 3 is refrigerant inlet end, and the right end of the second collector tube 3 is closed end.Second heat exchange unit
20 the second gas collecting tube 4 is located at the top of the second collector tube 3 of the second heat exchange unit 20, and the right end of the second gas collecting tube 4 is refrigerant
Outlet end, the left end of the second gas collecting tube 4 are connected to the refrigerant inlet end of the second collector tube 3, the second heat exchange of the second heat exchange unit 20
The both ends of pipe 7 are connected to the second collector tube 3 and the second gas collecting tube 4 respectively.
The lower end of second gas collecting tube 4 connects the input end of the second collector tube 3.The upper end of second gas collecting tube 4 is refrigerant exit
End, and the upper end of the second gas collecting tube 4 is the outlet of the second heat exchange unit 20 with the extraneous extreme higher position for carrying out mass exchange.
At least two second heat exchanger tubes 7, the vertical cloth of the second heat exchanger tube 7 are equipped between second collector tube 3 and the second gas collecting tube 4
It sets.The lower end of second heat exchanger tube 7 is connected to the second collector tube 3, and the upper end of the second heat exchanger tube 7 is connected to the second gas collecting tube 4, adjacent
It is arranged in parallel between two the second heat exchanger tubes 7, the length of the second heat exchanger tube 7 is from the refrigerant inlet end of the second collector tube 3 to second
The closed end of collector tube 3 gradually increases and (can also be gradually reduced), flows into the second collector tube from the refrigerant inlet end of the second collector tube 3
3 liquid refrigerants can be flowed into the second heat exchanger tube 7 by the port between the second heat exchanger tube 7 and the second collector tube 3.
The second fin 8 is equipped between two neighboring second heat exchanger tube 7, the left and right sides of the second fin 8 is separately connected adjacent
The outer wall of two the second heat exchanger tubes 7, the second fin 8 are wave-shaped.
Second heat exchanger tube 7 uses flat tube.
Second heat exchange unit 20 set there are two with the extraneous port for carrying out mass exchange, respectively a left side for the second collector tube 3
The right end at end and the second gas collecting tube 4, the left end of the second collector tube 3 flow into liquid refrigerants, and gaseous coolant is along the second gas collecting tube 4 from the
It flows out the upper end of two gas collecting tubes 4.
The liquid refrigerants for entering the second heat exchange unit 20 can be put aside under the effect of gravity in the second collector tube 3, liquid
Refrigerant can be entered from the second collector tube 3 in every first heat exchanger tube 7 of the second heat exchange unit 20, in the first heat exchanger tube 7
Be vaporized into after gaseous coolant from the upper end of the first heat exchanger tube 7 and enter the second gas collecting tube 4, then along the second gas collecting tube 4 from
Flow out the second heat exchange unit 20 in the refrigerant exit end of second gas collecting tube 4.
If putting aside that liquid refrigerants in the second collector tube 3 is excessive so that the heat exchanger tube that length is shorter is blocked, but gas
State refrigerant still can rise to the second gas collecting tube 4 under the action of buoyancy, then along the second gas collecting tube 4 from the second gas collecting tube 4
Refrigerant exit end flow out the second heat exchange unit 20.This ensure that the liquid refrigerants entered in the second heat exchange unit 20 is not having
It can be put aside without outflow heat exchanger in heat exchanger in the case where having vaporization, so that is flowed out from refrigerant exit is that gaseous state is cold
Matchmaker.
First gas collecting tube 2 is arranged in parallel with the second gas collecting tube 4.
The invention also provides a kind of air conditioner, applying in the air conditioner has Thermal Performance of Micro Channels proposed by the invention
Device.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should be included in protection scope of the present invention within principle.
Claims (10)
1. a kind of micro-channel heat exchanger, which is characterized in that including several heat exchange units, the heat exchange unit includes horizontally disposed
Collector tube, the gas collecting tube that is obliquely installed and several heat exchanger tubes between collector tube and gas collecting tube, the heat exchanger tube connects
Logical collector tube and gas collecting tube, the gas collecting tube are located above or below collector tube, and one end of the collector tube is refrigerant inlet
End, the other end is closed end, and the upper end of first gas collecting tube is refrigerant exit end.
2. micro-channel heat exchanger according to claim 1, which is characterized in that the heat exchanger tube is vertically arranged.
3. micro-channel heat exchanger according to claim 1, which is characterized in that the heat exchanger tube is vertically arranged, the heat exchange
Pipe quantity is at least two, parallel between two neighboring heat exchanger tube, from the refrigerant inlet end of the collector tube to the collector tube
Closed end heat exchanger tube length it is gradually smaller or gradually increase.
4. according to claim 1 or micro-channel heat exchanger described in 2, which is characterized in that the number of heat exchange tubes is at least two
It is a, fin is equipped between two neighboring heat exchanger tube.
5. micro-channel heat exchanger according to claim 4, which is characterized in that the fin is wave-shaped.
6. micro-channel heat exchanger according to claim 1, which is characterized in that the heat exchanger tube uses flat tube.
7. micro-channel heat exchanger according to claim 1, which is characterized in that the heat exchange unit quantity is two, respectively
For the first heat exchange unit and the second heat exchange unit, first heat exchange unit and the second heat exchange unit are setting up and down and be not connected to
, in which:
First gas collecting tube of first heat exchange unit is located at the lower section of the first collector tube of first heat exchange unit, and described
The refrigerant exit end of one gas collecting tube is located at the closed end of the first collector tube, and the lower end of first gas collecting tube is located at first collection
The underface at the refrigerant inlet end of liquid pipe, the both ends of the first heat exchanger tube of first heat exchange unit respectively with the first collector tube and
The connection of first gas collecting tube；
Second gas collecting tube of second heat exchange unit is located at the top of the second collector tube of second heat exchange unit, and described
The refrigerant exit end of two gas collecting tubes is located at the surface of the closed end of the second collector tube, and the lower end of second gas collecting tube is located at institute
State the refrigerant inlet end of the second collector tube, the both ends of the second heat exchanger tube of second heat exchange unit respectively with the second collector tube and
The connection of second gas collecting tube.
8. micro-channel heat exchanger according to claim 7, which is characterized in that the lower end of second gas collecting tube and the second collection
Liquid pipe connection.
9. micro-channel heat exchanger according to claim 7, which is characterized in that first gas collecting tube and the second gas collecting tube are flat
Row setting.
10. a kind of air conditioner, which is characterized in that including micro-channel heat exchanger described in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811467282.0A CN109539634B (en) | 2018-12-03 | 2018-12-03 | Micro-channel heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811467282.0A CN109539634B (en) | 2018-12-03 | 2018-12-03 | Micro-channel heat exchanger and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109539634A true CN109539634A (en) | 2019-03-29 |
| CN109539634B CN109539634B (en) | 2020-04-28 |
Family
ID=65852417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811467282.0A Active CN109539634B (en) | 2018-12-03 | 2018-12-03 | Micro-channel heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109539634B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686054A (en) * | 2021-09-01 | 2021-11-23 | 中国人民解放军陆军工程大学 | Evaporator for power system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB672858A (en) * | 1950-08-24 | 1952-05-28 | Dole Refrigerating Co | Improvements in and relating to refrigerating or freezing plates |
| CN101691981A (en) * | 2009-07-23 | 2010-04-07 | 三花丹佛斯（杭州）微通道换热器有限公司 | Multi-channel heat exchanger with improved refrigerant fluid distribution uniformity |
| CN101865625A (en) * | 2010-06-29 | 2010-10-20 | 三花丹佛斯（杭州）微通道换热器有限公司 | Fin and heat exchanger provided with same |
| CN103743158A (en) * | 2014-01-06 | 2014-04-23 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
| CN105258411A (en) * | 2015-10-12 | 2016-01-20 | 杭州三花微通道换热器有限公司 | Gas-liquid separating pipe for heat exchanger and heat exchanger |
-
2018
- 2018-12-03 CN CN201811467282.0A patent/CN109539634B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB672858A (en) * | 1950-08-24 | 1952-05-28 | Dole Refrigerating Co | Improvements in and relating to refrigerating or freezing plates |
| CN101691981A (en) * | 2009-07-23 | 2010-04-07 | 三花丹佛斯（杭州）微通道换热器有限公司 | Multi-channel heat exchanger with improved refrigerant fluid distribution uniformity |
| CN101865625A (en) * | 2010-06-29 | 2010-10-20 | 三花丹佛斯（杭州）微通道换热器有限公司 | Fin and heat exchanger provided with same |
| CN103743158A (en) * | 2014-01-06 | 2014-04-23 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
| CN105258411A (en) * | 2015-10-12 | 2016-01-20 | 杭州三花微通道换热器有限公司 | Gas-liquid separating pipe for heat exchanger and heat exchanger |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686054A (en) * | 2021-09-01 | 2021-11-23 | 中国人民解放军陆军工程大学 | Evaporator for power system |
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| Publication number | Publication date |
|---|---|
| CN109539634B (en) | 2020-04-28 |
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