CN106969545A - Microchannel heat exchanger and heat pump water heater - Google Patents
Microchannel heat exchanger and heat pump water heater Download PDFInfo
- Publication number
- CN106969545A CN106969545A CN201710368516.5A CN201710368516A CN106969545A CN 106969545 A CN106969545 A CN 106969545A CN 201710368516 A CN201710368516 A CN 201710368516A CN 106969545 A CN106969545 A CN 106969545A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000003507 refrigerant Substances 0.000 claims abstract description 42
- 230000000903 blocking effect Effects 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the technical field of heat exchange, and aims to provide a microchannel heat exchanger and a heat pump water heater which are simple in structure, high in heat exchange efficiency, safe and reliable. The microchannel heat exchanger comprises a first collecting pipe, a second collecting pipe, a third collecting pipe and a plurality of flat pipes, wherein a first interface, a second interface and a third interface which are communicated with a system pipeline are respectively arranged on the first collecting pipe, the second collecting pipe and the third collecting pipe; the third collecting pipe is arranged between the first collecting pipe and the second collecting pipe, and the first collecting pipe and the third collecting pipe and the second collecting pipe and the third collecting pipe are communicated through a plurality of flat pipes; the refrigerant in-out direction of the first interface is the same as that of the second interface, and the refrigerant in-out direction of the first interface is opposite to that of the third interface, the first collecting pipe, the third collecting pipe and the flat pipe between the first collecting pipe and the third collecting pipe form a first flow path, and the second collecting pipe, the third collecting pipe and the flat pipe between the second collecting pipe and the third collecting pipe form a second flow path.
Description
Technical field
The present invention relates to technical field of heat exchange, more particularly to a kind of micro-channel heat exchanger and Teat pump boiler.
Background technology
Micro-channel heat exchanger is because its contact area is big, heat exchange property is high, crushing is small, the advantage in compact conformation and cost,
Just progressively it is applied to business, domestic refrigeration system.Using micro- more than the water container heat exchanger of current wall-mounted air energy Teat pump boiler
Channel heat exchanger.
Existing micro-channel heat exchanger, reference picture 1-4 is usually containing microporous by two headers 10 ' and many
Flat tube 40 ' is constituted.Header is mounted in the two ends of flat tube, and many flat tubes are installed in parallel together from structure, pass through header
Partition 60 ', microchannel is divided into multiple streams., will be many micro- by one or more connecting plates between two headers
Passage is rolled in inner water tank 70 ' outside.Due to no extrinsic power, flow entirely from water after being heated by micro-channel heat exchanger
Variable density, raw free convection is issued in gravity field action.Density reduces after water is heated, therefore hot water is in water tank upper, cold
Water is in water tank bottom.
But for wall-mounted air energy Teat pump boiler, each microchannel stream of the micro-channel heat exchanger of this structure
Road is all to flow in another header, way to exchange heat with high-temperature water from a header.Multiple streams pass through partition shape
Into series relationship, then refrigerant frequently can exchange heat in micro-channel heat exchanger with high-temperature water, and the purpose of micro-channel heat exchanger is
By in water tank water heating, i.e., exchanged heat with cold water, thus frequently with high-temperature water exchange heat can cause heat exchanger heat exchange efficiency it is low,
The problems such as system high pressure is high.
The content of the invention
Based on this, the technical problem to be solved in the present invention is to provide a kind of simple in construction, heat exchange efficiency is high, safe and reliable
Micro-channel heat exchanger and Teat pump boiler.
A kind of micro-channel heat exchanger, including the first header, the second header, the 3rd header and some flat tubes, it is described
First header, the second header, it is respectively arranged with the first interface connected with system pipeline, second interface on the 3rd header
With the 3rd interface；3rd header is arranged between first header and the second header, the first header and
Connected between three headers and between the second header and the 3rd header by some flat tubes；The first interface
Enter that outgoing direction is identical with the refrigerant of the second interface, and the refrigerant turnover with the 3rd interface is in opposite direction, described the
One header, the 3rd header and between the two flat tube formation first flow path, second header, the 3rd header,
And flat tube formation second flow path between the two.
In one of the embodiments, first header, the second header, be provided with flow blocking in the 3rd header
Portion, the first flow path and second flow path are respectively formed S-shaped stream by the flow blocking portion.
In one of the embodiments, first header is oppositely arranged with the flow blocking portion in the second header, and with
Flow blocking portion in 3rd header is shifted to install；The first interface, second interface are separately positioned on the first header, the second collection
Identical one end of flow tube, the 3rd interface is arranged on one end relative with first interface, second interface on the 3rd header.
In one of the embodiments, the flow blocking portion is some partitions.
In one of the embodiments, first header, the second header and the 3rd header be arranged in parallel, some
The flat tube parallel interval is set, and vertical with the first header, the second header and the 3rd header.
A kind of Teat pump boiler, including micro-channel heat exchanger described above, the micro-channel heat exchanger are arranged on heat pump
On the inner water tank of water heater, the first flow path is set with second flow path around the inner water tank outer wall, and flows through institute
State the high temperature pool on inner water tank top and the low temperature pool of inner water tank bottom.
In one of the embodiments, first header and the second header are arranged on the inner water tank bottom
Low temperature pool, the 3rd header is arranged on the high temperature pool on the inner water tank top；3rd interface enters for refrigerant
Mouthful, the first interface and second interface are refrigerant exit.
In one of the embodiments, first header and the second header are arranged on the inner water tank top
High temperature pool, the 3rd header is arranged on the low temperature pool of the inner water tank bottom；The first interface and second connects
Mouth is refrigerant import, and the 3rd interface is refrigerant exit.
In one of the embodiments, on the first interface and the second header of first header second interface is led to
Connecting tube connection connection is crossed, and fixation is wrapped by the connecting tube and the inner water tank.
Above-mentioned micro-channel heat exchanger, by three headers in the two ends of flat tube and middle installation, from the 3rd middle collection
Flow tube flow to first header at two ends, the second header or from the first header, second header at two ends flow in the middle of
3rd header, adjusts the refrigerant flow path mode of whole microchannel, it is possible to reduce refrigerant exchanges heat with high-temperature water, improves microchannel and changes
The condensing heat-exchange performance of hot device.
Brief description of the drawings
Fig. 1 is the structural representation of existing micro-channel heat exchanger；
Fig. 2 is the assembling schematic diagram of existing micro-channel heat exchanger and inner water tank；
Fig. 3 is Fig. 2 left view；
Fig. 4 is Fig. 2 top view；
Fig. 5 is the structural representation one of micro-channel heat exchanger of the present invention, it is illustrated that refrigerant two ends are entered centre and gone out；
Fig. 6 is the micro-channel heat exchanger and the installation diagram of inner water tank in Fig. 5；
Fig. 7 is Fig. 6 left view；
Fig. 8 is Fig. 6 top view；
Fig. 9 is the structural representation two of micro-channel heat exchanger of the present invention, it is illustrated that enters two in the middle of refrigerant and brings out；
Figure 10 is the micro-channel heat exchanger and the installation diagram of inner water tank in Fig. 9；
Figure 11 is Figure 10 left view；
Figure 12 is Figure 10 top view；
Description of reference numerals：
Header 10 '；Flat tube 40 '；Partition 60 '；Inner water tank 70 '；
First header 100；First interface 110；
Second header 200；Second interface 210；
3rd header 300；3rd interface 310；
Flat tube 400；
First flow path 510；Second flow path 520；
Partition 600；
Inner water tank 700；
Connecting tube 800.
Embodiment
Specific embodiments of the present invention are described in detail below with reference to Figure of description, but the present invention can be with
The multitude of different ways for being defined by the claims and covering is implemented.
Micro-channel heat exchanger in reference picture 5, one embodiment of the present of invention, including the first header 100, the second afflux
Pipe 200, the 3rd header 300 and some flat tubes 400.First header 100, the second header 200, on the 3rd header 300
It is respectively arranged with the first interface 110 connected with system pipeline, the interface 310 of second interface 210 and the 3rd.3rd header 300
It is arranged between the first header 100 and the second header 200, between the first header 100 and the 3rd header 300 and
Connected between two headers 200 and the 3rd header 300 by some flat tubes 400.Microchannel is provided with flat tube 400, the
One header 100, the 3rd header 300 and the first flow path 510 that flows through of the formation refrigerant of flat tube 400 between the two.Second
Header 200, the 3rd header 300 and the second flow path 520 that flows through of the formation refrigerant of flat tube 400 between the two.
Above-mentioned micro-channel heat exchanger, by three headers in the two ends of flat tube 400 and middle installation, from the middle the 3rd
Header 300 flows to first header 100, the second header 200 or the first header 100, second collection from two ends at two ends
Flow tube 200 flows to the 3rd header 300 of centre, adjusts the refrigerant flow path mode of whole microchannel, it is possible to reduce refrigerant and height
Warm water exchanges heat, and improves the condensing heat-exchange performance of micro-channel heat exchanger.
Further, the first header 100, the second header 200, be provided with flow blocking portion in the 3rd header 300,
First flow path 510 and second flow path 520 are respectively formed S-shaped stream by flow blocking portion.Specifically, the first header 100 and the second collection
Flow blocking portion in flow tube 200 is oppositely arranged, and is shifted to install with the flow blocking portion in the 3rd header 300.First interface 110,
Two interfaces 210 are separately positioned on the first header 100, identical one end of the second header 200, and the 3rd interface 310 is arranged on
One end relative with first interface 110, second interface 210 on three headers 300.Flow blocking portion be specially it is some it is spaced every
Piece 600.When being provided with partition 600, refrigerant first converges from the first header 100 with the second header 200 to the 3rd header 300
Collection, is shunted to the first header 100 and the second header 200 respectively again after collecting, then is pooled to the 3rd header 300, so
Repeat to flow, form multiple-pass stream.When being not provided with partition 600, refrigerant is from the first header 100 and the second header
After 200 collect to the 3rd header 300, directly flowed out from the 3rd header 300, form one-stroke stream.
In one embodiment, the first header 100, the second header 200 and the 3rd header 300 be arranged in parallel, if
The dry parallel interval equidistance of flat tube 400 is set, and with the first header 100, the second header 200 and the 3rd header 300
Vertically.Preferably, three header lengths are equal, and the flat tube between two headers is symmetrical arranged, therefore the He of first flow path 510
Second flow path 520 is symmetrical, and path direction is opposite.
As shown in figs 6-8, above-mentioned micro-channel heat exchanger is applied in Teat pump boiler, and micro-channel heat exchanger is arranged on heat
On the inner water tank 700 of pump water heater, wrap on the outer wall of inner water tank 700.Inner water tank 700 is horizontally disposed with, in water tank
The top of courage 700 is divided into high temperature pool, and bottom is divided into low temperature pool.First flow path 510 is with second flow path 520 around inner water tank
700 are set, and flow through the high temperature pool and low temperature pool of inner water tank 700.
Further, such as Fig. 8, the second interface 220 of the header 200 of first interface 110 and second of the first header 100
Connection is connected by connecting tube 800 and fixation is wrapped by connecting tube 800 and inner water tank 700.Specifically, the first header
100 first interface 110, the second interface 210 of the second header 200 are connected with connecting tube, connecting tube 800 and system pipeline
Connection, is applied not only to convey refrigerant, is fixed on while can wrap micro-channel heat exchanger on inner water tank 700.
Heat exchange mode in Teat pump boiler between micro-channel heat exchanger and inner water tank 700 can be divided into following two：
Mode one, refrigerant two ends are entered centre and gone out：
As viewed in figures 5-8, the first header 100 and the second header 200 are arranged on the top of inner water tank 700, the 3rd
Header 300 is arranged on the bottom of inner water tank 700.The micro-channel heat exchanger of such a structure type, the 3rd header 300 is set
In the top half of inner water tank 700, in high-temperature water heat exchange area A；First, second header 200 at two ends is in inner water tank
700 the latter half, in water at low temperature heat exchange area B.
First interface 110 (be now refrigerant import), second header 200 of the refrigerant from the first header 100 of both sides
Second interface 210 (being now refrigerant import) enter micro-channel heat exchanger after, respectively enter water tank both sides flat tube 400, finally
Flowed out from the 3rd interface 310 (being now refrigerant exit) of the 3rd header 300.
When being provided with partition 600 in header, refrigerant after the first header 100 of both sides, the second header 200 enter,
First collect to middle 3rd header 300, then shunted to two ends, then collect to centre, so repeat to flow, form multiple-pass stream
Road.In header during septumless 600, refrigerant respectively enters water tank both sides after first, second header 200 of both sides enters
Flat tube 400, forms two strokes, is finally flowed out from the 3rd header 300.
Enter two in the middle of mode two, refrigerant to bring out：
As shown in figs9-12, the first header 100 and the second header 200 are arranged on the bottom of inner water tank 700, the 3rd
Header 300 is arranged on the top of inner water tank 700.The micro-channel heat exchanger of such a structure type, first, second collection at two ends
Flow tube is arranged on the top half of inner water tank 700, in high-temperature water heat exchange area A；3rd header 300 is in inner water tank 700
The latter half, in water at low temperature heat exchange area B.
3rd interface 310 (being now refrigerant import) of the header 300 of refrigerant the 3rd enters, while into water tank both sides
Flat tube 400, first interface 110 (being now refrigerant exit) last from the first header 100, the second of the second header 200
Interface 210 (being now refrigerant exit) flows out.
When being provided with partition 600 in header, refrigerant enters from the 3rd middle header 300, and the is further separated into both sides
First, after the second header 200, then collect to centre, so repeat to flow, form multiple-pass stream.Septumless 600 in header
When, refrigerant enters from the 3rd middle header 300, is further separated into both sides after first, second header 200, forms two
Stroke, finally flows out from the 3rd header 300.
Above two heat exchange mode is compared with the single pass mode of common two micro-channel heat exchangers：
1st, the total degree for having each stroke in the micro-channel heat exchanger of spacer structure to flow through high-temperature water heat exchange area A will be reduced
One times；
2nd, in each stroke of the micro-channel heat exchanger of septumless structure, refrigerant is directly flow to from high-temperature water heat exchange area A
Outflow heat exchanger after the B of water at low temperature heat exchange area, is no longer flow through high-temperature water heat exchange area A.
Refrigerant is fewer by the number of high-temperature water heat exchange area A times, and system heat transfer effect is better, and system high pressure is high, it is high to be vented
Problem, can alleviate significantly.Enhance the condensing heat-exchange performance of heat-pump water-heater water tank micro-channel heat exchanger.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of micro-channel heat exchanger, it is characterised in that including the first header (100), the second header (200), the 3rd collection
Flow tube (300) and some flat tubes (400), first header (100), the second header (200), the 3rd header (300)
On be respectively arranged with the first interface (110) connected with system pipeline, second interface (210) and the 3rd interface (310)；Described
Three headers (300) are arranged between first header (100) and the second header (200), the first header (100) with
Pass through some flat tubes between 3rd header (300) and between the second header (200) and the 3rd header (300)
(400) connect；It is identical that the first interface (110) and the refrigerant of the second interface (210) enter outgoing direction, and with described
The refrigerant turnover of three interfaces (310) is in opposite direction, first header (100), the 3rd header (300) and both it
Between flat tube (400) formation first flow path (510), second header (200), the 3rd header (300) and both it
Between flat tube (400) formation second flow path (520).
2. micro-channel heat exchanger according to claim 1, it is characterised in that first header (100), the second afflux
Flow blocking portion is provided with pipe (200), the 3rd header (300), the first flow path (510) and second flow path (520) pass through
The flow blocking portion is respectively formed S-shaped stream.
3. micro-channel heat exchanger according to claim 2, it is characterised in that first header (100) and the second collection
Flow blocking portion in flow tube (200) is oppositely arranged, and is shifted to install with the flow blocking portion in the 3rd header (300)；Described first connects
Mouth (110), second interface (210) are separately positioned on the first header (100), identical one end of the second header (200), described
3rd interface (310) is arranged on one end relative with first interface (110), second interface (210) on the 3rd header (300).
4. the micro-channel heat exchanger according to Claims 2 or 3, it is characterised in that the flow blocking portion is some partitions
(600)。
5. micro-channel heat exchanger according to claim 1, it is characterised in that first header (100), the second afflux
Pipe (200) and the 3rd header (300) be arranged in parallel, some flat tube (400) parallel intervals settings, and with the first header
(100), the second header (200) and the 3rd header (300) are vertical.
6. a kind of Teat pump boiler, it is characterised in that including the micro-channel heat exchanger as described in claim any one of 1-5, institute
State micro-channel heat exchanger to be arranged on the inner water tank of Teat pump boiler (700), the first flow path (510) and second flow path
(520) around the inner water tank (700) outer wall set, and flow through the inner water tank (700) top high temperature pool and
The low temperature pool of inner water tank (700) bottom.
7. Teat pump boiler according to claim 6, it is characterised in that first header (100) and the second afflux
Pipe (200) is arranged on the low temperature pool of the inner water tank (700) bottom, and the 3rd header (300) is arranged on the water
The high temperature pool on case inner bag (700) top；3rd interface (310) is refrigerant import, the first interface (110) and second
Interface (210) is refrigerant exit.
8. Teat pump boiler according to claim 6, it is characterised in that first header (100) and the second afflux
Pipe (200) is arranged on the high temperature pool on the inner water tank (700) top, and the 3rd header (300) is arranged on the water
The low temperature pool of case inner bag (700) bottom；The first interface (110) and second interface (210) are refrigerant import, the described 3rd
Interface (310) is refrigerant exit.
9. Teat pump boiler according to claim 6, it is characterised in that the first interface of first header (100)
(110) connection is connected by connecting tube (800) with the second interface (210) on the second header (200), and passes through the connection
Pipe (800) wraps fixation with the inner water tank (700).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710368516.5A CN106969545A (en) | 2017-05-22 | 2017-05-22 | Microchannel heat exchanger and heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710368516.5A CN106969545A (en) | 2017-05-22 | 2017-05-22 | Microchannel heat exchanger and heat pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106969545A true CN106969545A (en) | 2017-07-21 |
Family
ID=59325765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710368516.5A Pending CN106969545A (en) | 2017-05-22 | 2017-05-22 | Microchannel heat exchanger and heat pump water heater |
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Cited By (3)
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| CN108645029A (en) * | 2018-06-04 | 2018-10-12 | 珠海格力电器股份有限公司 | Heat exchange water tank and water heater |
| CN108931059A (en) * | 2018-09-18 | 2018-12-04 | 珠海格力电器股份有限公司 | Water heater water tank structure and water heater |
| CN114111115A (en) * | 2021-11-26 | 2022-03-01 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioner |
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| CN108931059A (en) * | 2018-09-18 | 2018-12-04 | 珠海格力电器股份有限公司 | Water heater water tank structure and water heater |
| CN108931059B (en) * | 2018-09-18 | 2023-10-03 | 珠海格力电器股份有限公司 | Water tank structure of water heater and water heater |
| CN114111115A (en) * | 2021-11-26 | 2022-03-01 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioner |
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Application publication date: 20170721 |
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