CN219264440U - Outdoor heat exchanger structure and air conditioning system comprising same - Google Patents
Outdoor heat exchanger structure and air conditioning system comprising same Download PDFInfo
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- CN219264440U CN219264440U CN202222972712.2U CN202222972712U CN219264440U CN 219264440 U CN219264440 U CN 219264440U CN 202222972712 U CN202222972712 U CN 202222972712U CN 219264440 U CN219264440 U CN 219264440U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 15
- 230000005669 field effect Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 42
- 238000001816 cooling Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 description 22
- 230000000875 corresponding effect Effects 0.000 description 8
- 238000004781 supercooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model provides an outdoor heat exchanger structure and an air conditioning system, wherein the outdoor heat exchanger structure comprises a gas collecting tube assembly connected with a compressor, the gas collecting tube assembly is divided into a first gas collecting tube part, a second gas collecting tube part and a third gas collecting tube part through a first control valve and a second control valve, the first gas collecting tube part positioned at the upper end of the gas collecting tube assembly is connected with one end of the first heat exchanger, the other end of the first heat exchanger is connected with a first gas collecting tube assembly, the second gas collecting tube part positioned between the first control valve and the second control valve is connected with one end of the second heat exchanger, the other end of the second heat exchanger is connected with the second gas collecting tube assembly, the third gas collecting tube part positioned at the lower end of the gas collecting tube assembly is connected with one end of the third heat exchanger, and the other end of the third heat exchanger is connected with the third gas collecting tube assembly, and the windward area of the three heat exchangers and the corresponding wind field effect form positive correlation.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to an outdoor heat exchanger structure and an air conditioning system comprising the same.
Background
The air conditioner mainly comprises a compressor, an indoor heat exchanger, a throttling device and an outdoor heat exchanger. The first end of the outdoor heat exchanger is connected with the indoor heat exchanger through the compressor, and the second end of the outdoor heat exchanger is connected with the indoor heat exchanger through the throttling device. When the air conditioner is used for refrigerating, the outdoor heat exchanger serves as a condenser for condensing, and the indoor heat exchanger serves as an evaporator for evaporating; when the air conditioner is used for heating, the outdoor heat exchanger serves as an evaporator to perform evaporation, and the indoor heat exchanger serves as a condenser to perform condensation.
In the existing flow path structure of the outdoor heat exchanger, electromagnetic valves are arranged among part of liquid collecting pipes, part of gas collecting pipes and the flow paths of the heat exchanger, and the parallel connection or series connection mode of the heat exchange flow paths is realized by changing the on-off state of the electromagnetic valves. Although the flow paths can be flexibly switched, the influence of the wind field on the heat exchange effect is not considered, and particularly, the problems of accumulation of liquid refrigerant at the bottom, less circulating refrigerant and poor heat exchange efficiency are easily caused under the condition that the upper layer heat exchange is good at the position of the bottom of the vertical heat exchanger.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a structure of a multi-flow-path outdoor heat exchanger.
The first aspect of the utility model provides an outdoor heat exchanger structure, comprising a gas collecting tube assembly connected with a compressor, wherein the gas collecting tube assembly is divided into a first gas collecting tube part, a second gas collecting tube part and a third gas collecting tube part through a first control valve and a second control valve, the first gas collecting tube part positioned at the upper end of the gas collecting tube assembly is connected with one end of a first heat exchanger, the other end of the first heat exchanger is connected with a first liquid collecting tube assembly, the second gas collecting tube part positioned between the first control valve and the second control valve is connected with one end of a second heat exchanger, the other end of the second heat exchanger is connected with the second liquid collecting tube assembly, the third gas collecting tube part positioned at the lower end of the second control valve and the gas collecting tube assembly is connected with one end of a third heat exchanger, the other end of the third heat exchanger is connected with the third liquid collecting tube assembly, and the windward area of the three heat exchangers is in positive correlation with the corresponding windward effect.
In one embodiment, the first gas collecting pipe part is connected with one end of a first heat exchanger through a straight pipe, and the first heat exchanger is connected with a first liquid collecting pipe assembly through a capillary pipe;
the second gas collecting pipe part is connected with one end of the second heat exchanger through a straight pipe, and the other end of the second heat exchanger is connected with the second liquid collecting pipe assembly through a capillary pipe;
the third gas collecting pipe part is connected with one end of the third heat exchanger through a straight pipe, and the other end of the third heat exchanger is connected with the third liquid collecting pipe assembly through a straight pipe.
In one embodiment, the outdoor heat exchanger structure further comprises a third control valve and a fourth control valve, wherein one end of the third control valve is connected with the end of the first liquid collecting pipe assembly, the other end of the third control valve is connected with the liquid collecting pipe assembly, and the third control valve is positioned on one side of the first control valve facing the second control valve; one end of the fourth control valve is connected with the end of the first liquid collecting pipe assembly, and the other end of the fourth control valve is connected with the end of the second liquid collecting pipe assembly.
In one embodiment, the outdoor heat exchanger structure further comprises a throttling member disposed between the third header portion and the first and second header assemblies and between the second control valve and the third header portion.
In one embodiment, the first heat exchanger frontal area > the second heat exchanger frontal area > the third heat exchanger frontal area.
In one embodiment, the third control valve and the fourth control valve may be replaced with three-way valves.
A second aspect of the present utility model provides an air conditioning system comprising an outdoor heat exchanger structure as described in any one or a combination of the above.
In one embodiment, the air conditioning system further comprises a gas-liquid separator, a compressor and a four-way valve, wherein the upper end of the gas collecting tube component of the outdoor heat exchanger is connected with the compressor through the four-way valve.
In one embodiment, the operating load in the air conditioning system cooling mode includes three load levels, and the first load > the second load > the third load,
when the air conditioner is in a first load, the first heat exchanger and the second heat exchanger are parallel flow paths, the first control valve and the third control valve are opened, the second control valve and the fourth control valve are closed, and the throttling component is opened;
when the air conditioner is in a second load, the first heat exchanger and the second heat exchanger are in a series flow path, the second heat exchanger and the third heat exchanger are in parallel flow paths, the first control valve and the fourth control valve are closed, the second control valve and the third control valve are opened, and the throttling component is opened;
when the air conditioner is in the third load, the first heat exchanger, the second heat exchanger and the third heat exchanger are in series flow paths, the first control valve, the second control valve and the fourth control valve are closed, the third control valve is opened, and the throttling component is opened.
Compared with the prior art, the structure of the multi-flow-path outdoor heat exchanger has the following advantages:
1. dividing the gas collecting tube into three areas through a control valve, wherein each area corresponds to an independent heat exchanger, and the windward area of the heat exchanger and the wind field effect form positive correlation; the two heat exchangers with the optimal corresponding wind field effect can form parallel and serial flow paths through the valve component; the heat exchanger with the worst corresponding wind field effect is used as the supercooling section, and the heat exchanger corresponding to the supercooling section is connected with the gas collecting pipe and the liquid collecting pipe end by straight pipes, so that the heat exchange effect of the heat exchanger is exerted by fully utilizing the distribution of the wind field, and the problem of poor heat exchange caused by the accumulation and unsmooth flow of the refrigerant of the lower-layer heat exchanger can be avoided.
2. In the refrigeration mode, the flow paths of the heat exchanger are freely switched according to the operation load demand, the refrigerants all flow into the liquid collecting side from the gas collecting side, and countercurrent heat exchange is kept with the outdoor wind direction, so that the heat exchange efficiency is improved.
The above technical features can be combined in various technically feasible ways to create new embodiments as long as the object of the utility model is achieved.
Drawings
The utility model will be described in more detail hereinafter on the basis of an embodiment which is only non-limiting and with reference to the accompanying drawings. Wherein:
fig. 1 shows a schematic structural view of an outdoor heat exchanger structure according to the present utility model;
FIG. 2 shows a schematic of a parallel flow path for the cooling mode of the outdoor heat exchanger of FIG. 1;
FIG. 3 shows a schematic of a cooling mode series flow path of the outdoor heat exchanger of FIG. 1;
FIG. 4 shows a schematic of a cooling mode series flow path of the outdoor heat exchanger of FIG. 1;
fig. 5 shows a heating mode parallel flow path schematic of the outdoor heat exchanger of fig. 1;
fig. 6 shows a schematic structural view of the outdoor heat exchanger in which the third control valve and the fourth control valve are replaced with three-way valves.
In the drawings, like components are denoted by like reference numerals. The figures are not drawn to scale.
Wherein, the reference numerals are as follows:
1. a gas-liquid separator; 2. a compressor; 3. a four-way valve; 4. an outdoor heat exchanger; 5. a liquid side pipeline; 6. an air side pipeline; 401. a gas collecting tube assembly; 4011. a first control valve; 4012. a second control valve; 402. a heat exchanger group; 4021. a first heat exchanger; 4022. a second heat exchanger; 4023. a third heat exchanger; 403. a liquid collecting pipe assembly; 4031. a first header assembly; 4032. a second header assembly; 4033. a third header assembly; 404. a third control valve; 405. a fourth control valve; 406. a throttle member; a three-way control valve 407.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific examples. It should be noted that, as long as no conflict is formed, each embodiment of the present utility model and each feature of each embodiment may be combined with each other, and the formed technical solutions are all within the protection scope of the present utility model.
The parts not described in the utility model can be realized by adopting or referring to the prior art.
As shown in fig. 1, the first aspect of the present utility model provides an outdoor heat exchanger structure, the outdoor heat exchanger 4 of the present utility model includes a gas collecting tube assembly 401 connected to a compressor 2, the gas collecting tube assembly 401 is divided into a first gas collecting tube portion, a second gas collecting tube portion and a third gas collecting tube portion by a first control valve 4011 and a second control valve 4012, wherein the first gas collecting tube portion located at an upper end of the gas collecting tube assembly 401 is connected to one end of a first heat exchanger 4021, the other end of the first heat exchanger 4021 is connected to a first liquid collecting tube assembly 4031, the second gas collecting tube portion located between the first control valve 4011 and the second control valve 4012 is connected to one end of a second heat exchanger 4022, the other end of the second heat exchanger 4022 is connected to a second liquid collecting tube assembly 4032, the third gas collecting tube portion located at a lower end of the second control valve 4012 and the third heat exchanger 4023 is connected to one end of the third liquid collecting tube assembly 4033, wherein a large windward area of the three heat exchangers is in positive correlation with the windward area.
In the outdoor heat exchanger structure of the present utility model, the windward areas of the three heat exchangers (the first heat exchanger 4021, the second heat exchanger 4022, and the third heat exchanger 4023) in the heat exchanger group 402 are positively correlated with the corresponding wind field effects, that is, the better the wind field effect is, the larger the windward area of the corresponding heat exchanger is, and the worse the wind field effect is, and the smaller the windward area of the corresponding heat exchanger is. Taking the vertical heat exchanger and the air outlet right above the unit as an example, the effect of the upper wind field is better than that of the lower wind field, and the corresponding windward area relation of the heat exchanger is as follows: the first heat exchanger 4021 > the second heat exchanger 4022 > the third heat exchanger 4023.
In a preferred embodiment, the first header portion is connected to one end of the first heat exchanger 4021 by a straight tube, and the first heat exchanger 4021 is connected to the first header assembly 4031 by a capillary tube;
the second gas collecting pipe part is connected with one end of a second heat exchanger 4022 through a straight pipe, and the other end of the second heat exchanger 4022 is connected with a second liquid collecting pipe assembly 4032 through a capillary pipe;
the third header portion is connected to one end of the third heat exchanger 4023 through a straight tube, and the other end of the third heat exchanger 4023 is connected to the third header assembly 4033 through a straight tube.
In the utility model, the connecting pipe between the gas collecting pipe assembly 401 and the heat exchanger group 402 is connected by adopting a straight pipe, so that the throttling and depressurization effects are avoided; in the heat exchanger group 402, the connection pipes between the first heat exchanger and the second heat exchanger and the liquid collecting pipe assemblies 403 (the first liquid collecting pipe assembly 4031, the second liquid collecting pipe assembly 4032 and the third liquid collecting pipe assembly 4033) are connected by capillary pipes, so that the throttling and the depressurization functions are realized; the connecting pipe between the third heat exchanger 4023 and the liquid collecting pipe assembly 403 is connected by a straight pipe, and no throttling and depressurization function is achieved.
The weakest area of wind field is set as supercooling section area (area where third heat exchanger 4023 is located), and the inlet and outlet pipes all adopt straight pipe section design, are favorable to the refrigerant after the upper heat exchanger condensation to supercool once more and flow out fast, avoid the accumulation of liquid refrigerant.
In a preferred embodiment, the outdoor heat exchanger structure of the present utility model further comprises a third control valve 404 and a fourth control valve 405, wherein one end of the third control valve 404 is connected to one end of the first header assembly 4031, and the other end is connected to the header assembly 401, and is located on a side of the first control valve 4011 facing the second control valve 4012, i.e. is connected to the second header portion; one end of the fourth control valve 405 is connected to the end of the first header assembly 4031, and the other end is connected to the end of the second header assembly 4032. The outdoor heat exchanger structure of the present utility model realizes series and parallel flow paths of the first heat exchanger 4021 and the second heat exchanger 4022 by the third control valve 404, the fourth control valve 405, and the first control valve 4011.
In one embodiment, the outdoor heat exchanger structure of the present utility model further includes a throttling member 406 disposed between the third header portion and the first and second header assemblies and between the second control valve and the third header portion.
The cooling mode refrigerant flow path of the outdoor heat exchanger structure of the present utility model is as follows:
dividing the operating load into three load classes, a first load > a second load > a third load,
when the air conditioner is judged to be at the first load, the first heat exchanger 4021 and the second heat exchanger 4022 are parallel flow paths. As shown in fig. 2, the first control valve 4011 and the third control valve 404 are opened, the second control valve 4012 and the fourth control valve 405 are closed, and the throttle member 406 is opened. The high-temperature high-pressure gaseous refrigerant enters the first heat exchanger 4021 and the second heat exchanger 4022 through the gas collecting tube assembly 401 (the first gas collecting tube part and the second gas collecting tube part) and exchanges heat, enters the throttling component 406 through the gas collecting tube assembly 403, enters the third heat exchanger 4023 through the gas collecting tube assembly 401 (the third gas collecting tube part) and further exchanges heat and is supercooled, so that a larger supercooling degree is formed, and the gas refrigerant enters the indoor side through the liquid side pipeline 5.
When the air conditioner is judged to be under the second load, the first heat exchanger 4021 and the second heat exchanger 4022 are series flow paths, and meanwhile, in order to accelerate the circulation of the refrigerant, the second heat exchanger 4022 and the third heat exchanger 423 form a series connection and parallel connection double flow path. As shown in fig. 3, the first control valve 4011 and the fourth control valve 405 are closed, the second control valve 4012 and the third control valve 404 are opened, and the throttle member 406 is opened. The high-temperature high-pressure gaseous refrigerant is subjected to heat exchange through a gas collecting pipe, is returned to the gas collecting pipe assembly 401 through the third control valve 404 after being subjected to heat exchange through the first heat exchanger 4021, and is divided into two paths, wherein the first path is subjected to heat exchange again through the second heat exchanger 4022, and the refrigerant subjected to secondary heat exchange is returned to the gas collecting pipe assembly 401 again through the throttling component 406; the first path of refrigerant is converged with the refrigerant returned by the first path of refrigerant through the second control valve 4012 and then supercooled through the third heat exchanger 4023, so that a higher supercooling degree is formed, and the refrigerant enters the indoor side through the liquid side pipeline 5.
When the air conditioner is judged to be in the third load, the first heat exchanger 4021, the second heat exchanger 4022, and the third heat exchanger 4023 are series flow paths as shown in fig. 4. The first control valve 4011, the second control valve 4012, and the fourth control valve 405 are closed, the third control valve 404 is opened, and the throttle member 406 is opened. The high-temperature high-pressure gaseous refrigerant is subjected to heat exchange through the gas collecting tube, then returns to the gas collecting tube assembly 401 through the third control valve 404, is subjected to heat exchange again through the second heat exchanger 4022, returns to the gas collecting tube assembly 401 again through the throttling component 406 after the secondary heat exchange, is supercooled through the third heat exchanger 4023, and forms a higher supercooling degree, and enters the indoor side through the liquid side pipeline 5.
The operation load is divided into three areas under the refrigeration mode, when the load demand is maximum, the upper two heat exchange areas are switched into parallel flow paths, when the load demand is medium, the upper two heat exchange areas are switched into series connection, the second heat exchanger and the third heat exchanger serving as a supercooling section area are switched into parallel connection and series connection double flow paths, and when the load demand is minimum, the three heat exchangers are switched into pure series connection structures. The heat exchanger has various forms and is suitable for different load demands. And no matter what flow path is, the refrigeration is countercurrent heat exchange, the flow direction of the refrigerant is opposite to the outdoor side wind direction, and the full countercurrent heat exchange can be realized, so that the heat exchange efficiency is improved.
The heating mode refrigerant flow path is controlled as follows:
as shown in fig. 5, the first heat exchanger 4021 and the second heat exchanger 4022 form parallel flow paths, the first control valve 4011 and the fourth control valve 405 are opened, the second control valve 4012 and the third control valve 404 are closed, and the throttle member 406 is opened. During heating, medium-pressure refrigerant passing through the indoor side returns to the third heat exchanger 4023 through the liquid side pipeline 5 to be supercooled, and then enters the first heat exchanger 4021 and the second heat exchanger 4022 through the throttling component 406 at the same time to evaporate the refrigerant, and the evaporated gaseous refrigerant returns to the air suction side through the air side pipeline 6.
In an alternative embodiment, the third control valve and the fourth control valve may be implemented instead using three-way valves.
As shown in fig. 6, the b end of the three-way control valve 407 is connected to the end of the first header assembly 4031 of the first heat exchanger 4021, the a end of the three-way control valve 407 is connected to the end of the second header assembly 4032 of the second heat exchanger 4022, the c end is connected to the header end where the first control valve 4011 is located, and the d end has no flow path. By switching the connection between the b terminal and the a or c terminal, parallel and serial flow paths of the first heat exchanger 4021 and the second heat exchanger 4022 are realized.
Specifically, when the b terminal is connected to the c terminal, it is equivalent to the third control valve 404 being opened and the fourth control valve 405 being closed; when the b-terminal is connected with the a-terminal, it is equivalent to the third control valve 404 being closed and the fourth control valve 405 being opened. The specific coolant flow path is not described here in detail.
A second aspect of the present utility model provides an air conditioning system comprising an outdoor heat exchanger structure as described in any one or a combination of the above.
Therefore, the air conditioning system of the present utility model has all the advantages achieved by the outdoor heat exchanger structure.
In a specific embodiment, the air conditioning system further includes a gas-liquid separator 1, a compressor 2, and a four-way valve 3, and an upper end of a gas collecting tube assembly 401 of the outdoor heat exchanger 4 is connected to the compressor 2 through the four-way valve 3.
The control method of the air conditioning system comprises the following steps:
the operating load is divided into three load classes, a first load > a second load > a third load.
When the air conditioner is judged to be in the first load, the first heat exchanger 4021 and the second heat exchanger 4022 are controlled to be parallel flow paths, the first control valve 4011 and the third control valve 404 are controlled to be opened, the second control valve 4012 and the fourth control valve 405 are controlled to be closed, and the throttling component 406 is controlled to be opened;
when the air conditioner is judged to be in the second load, the first heat exchanger 4021 and the second heat exchanger 4022 are controlled to be in a series flow path, the second heat exchanger 4022 and the third heat exchanger 4023 form a series double flow path and a parallel double flow path, the first control valve 4011 and the fourth control valve 405 are controlled to be closed, the second control valve 4012 and the third control valve 404 are controlled to be opened, and the throttling component 406 is controlled to be opened;
when the air conditioner is judged to be under the third load, the first heat exchanger 4021, the second heat exchanger 4022 and the third heat exchanger 4023 are controlled to be in a series flow path, the first control valve 4011, the second control valve 4012 and the fourth control valve 405 are controlled to be closed, the third control valve 404 is opened, and the throttling part 406 is opened.
In one embodiment, the control method further comprises: in the heating mode, the first heat exchanger 4021 and the second heat exchanger 4022 are controlled to form parallel flow paths, the first control valve 4011 and the fourth control valve 405 are opened, the second control valve 4012 and the third control valve 404 are closed, and the throttle member 406 is opened.
The specific flow path is referred to the above description of the flow path of the outdoor heat exchanger structure, and will not be repeated here.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items.
By now it will be appreciated by those skilled in the art that while the utility model has been described with reference to preferred embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The utility model provides an outdoor heat exchanger structure, its characterized in that includes the gas collecting tube subassembly of being connected with the compressor, the gas collecting tube subassembly is divided into first gas collecting tube part, second gas collecting tube part and third gas collecting tube part through first control valve and second control valve, wherein, is located the gas collecting tube subassembly upper end first gas collecting tube part is connected with the one end of first heat exchanger, the other end of first heat exchanger is connected with first liquid collecting tube subassembly, is located between first control valve and the second control valve second gas collecting tube part is connected with the one end of second heat exchanger, the other end of second heat exchanger is connected with second liquid collecting tube subassembly, is located the second control valve and gas collecting tube subassembly lower extreme third gas collecting tube part is connected with the one end of third heat exchanger, the other end of third heat exchanger is connected with third liquid collecting tube subassembly, wherein, the windward area size of three heat exchangers and wind field effect that corresponds become the positive correlation.
2. The outdoor heat exchanger structure according to claim 1, wherein,
the third gas collecting pipe part is connected with one end of the third heat exchanger through a straight pipe, and the other end of the third heat exchanger is connected with the third liquid collecting pipe assembly through a straight pipe.
3. The outdoor heat exchanger structure according to claim 2, wherein,
the first gas collecting pipe part is connected with one end of the first heat exchanger through a straight pipe, and the first heat exchanger is connected with the first liquid collecting pipe assembly through a capillary pipe;
the second gas collecting pipe part is connected with one end of the second heat exchanger through a straight pipe, and the other end of the second heat exchanger is connected with the second liquid collecting pipe component through a capillary pipe.
4. The outdoor heat exchanger structure according to claim 2 or 3, further comprising a third control valve and a fourth control valve, wherein one end of the third control valve is connected to the first collector tube assembly end of the first heat exchanger, and the other end is connected to the collector tube assembly and is located on a side of the first control valve facing the second control valve; one end of the fourth control valve is connected with the first liquid collecting pipe assembly end of the first heat exchanger, and the other end of the fourth control valve is connected with the second liquid collecting pipe assembly end.
5. The outdoor heat exchanger structure according to claim 4, further comprising a throttling member disposed between the third header portion and the first and second header assemblies and between the second control valve and the third header portion.
6. The outdoor heat exchanger structure of claim 5, wherein the first heat exchanger frontal area > the second heat exchanger frontal area > the third heat exchanger frontal area.
7. The outdoor heat exchanger structure according to claim 4, wherein the third control valve and the fourth control valve are replaceable with three-way valves.
8. An air conditioning system comprising the outdoor heat exchanger structure of any one of claims 1-7.
9. The air conditioning system of claim 8, further comprising a gas-liquid separator, a compressor, and a four-way valve, wherein an upper end of the gas collector assembly of the outdoor heat exchanger is connected to the compressor through the four-way valve.
10. An air conditioning system according to claim 8 or 9, characterized in that the operating load of the cooling mode of the air conditioning system comprises three load classes, and that the first load > the second load > the third load,
when the air conditioner is in a first load, the first heat exchanger and the second heat exchanger are parallel flow paths, the first control valve and the third control valve are opened, the second control valve and the fourth control valve are closed, and the throttling component is opened;
when the air conditioner is in a second load, the first heat exchanger and the second heat exchanger are in a series flow path, the second heat exchanger and the third heat exchanger are in parallel flow paths, the first control valve and the fourth control valve are closed, the second control valve and the third control valve are opened, and the throttling component is opened;
when the air conditioner is in the third load, the first heat exchanger, the second heat exchanger and the third heat exchanger are in series flow paths, the first control valve, the second control valve and the fourth control valve are closed, the third control valve is opened, and the throttling component is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222972712.2U CN219264440U (en) | 2022-11-08 | 2022-11-08 | Outdoor heat exchanger structure and air conditioning system comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222972712.2U CN219264440U (en) | 2022-11-08 | 2022-11-08 | Outdoor heat exchanger structure and air conditioning system comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219264440U true CN219264440U (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222972712.2U Active CN219264440U (en) | 2022-11-08 | 2022-11-08 | Outdoor heat exchanger structure and air conditioning system comprising same |
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| Country | Link |
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| CN (1) | CN219264440U (en) |
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2022
- 2022-11-08 CN CN202222972712.2U patent/CN219264440U/en active Active
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