CN216159183U - Outdoor heat exchanger and air conditioner - Google Patents
Outdoor heat exchanger and air conditioner Download PDFInfo
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- CN216159183U CN216159183U CN202122234619.7U CN202122234619U CN216159183U CN 216159183 U CN216159183 U CN 216159183U CN 202122234619 U CN202122234619 U CN 202122234619U CN 216159183 U CN216159183 U CN 216159183U
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Abstract
The utility model discloses an outdoor heat exchanger and an air conditioner, comprising: an air tube; a liquid pipe; the heat exchange tube group comprises a first heat exchange tube group, a second heat exchange tube group and a third heat exchange tube group which are arranged from top to bottom; the first heat exchange pipe set, the second heat exchange pipe set and the third heat exchange pipe set are respectively provided with a first refrigerant port and a second refrigerant port for the inlet and outlet of refrigerants; a first refrigerant port of the first heat exchange pipe group is connected with an air pipe, a second refrigerant port of the first heat exchange pipe group is connected with a first refrigerant port of the second heat exchange pipe group, a second refrigerant port of the second heat exchange pipe group is connected with a first refrigerant port of the third heat exchange pipe group, and a second refrigerant port of the third heat exchange pipe group is connected with a liquid pipe; the first refrigerant port of the third heat exchange tube set is connected with the positive end of the one-way conduction valve, and the negative end of the one-way conduction valve is connected with the second refrigerant port of the first heat exchange tube set. The outdoor heat exchanger and the air conditioner have reasonable flow path design and enhance the heat exchange capacity.
Description
Technical Field
The utility model belongs to the technical field of heat exchangers, and particularly relates to an outdoor heat exchanger and an air conditioner.
Background
In the existing heat exchanger of the outdoor unit of the air conditioner, under the condition that the pipe diameter is consistent with the total number of heat exchange areas, in order to pursue the maximum utilization of the heat exchange areas, the supercooling degree is realized as much as possible during refrigeration; the pressure loss is reduced as much as possible due to frosting prevention during heating, so that a complicated flow path is designed.
When the flow path design of the heat exchanger of the outdoor unit of the existing household air conditioner is not proper, the heat dissipating capacity of the heat dissipating area can not be well exerted, or the heat exchanging capacity is reduced due to the fact that the flow path is not reasonable, raw materials are excessively used, or the pressure loss is increased.
Disclosure of Invention
The utility model provides an outdoor heat exchanger, which solves the problem of poor heat exchange capability in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
an outdoor heat exchanger comprising:
an air tube;
a liquid pipe;
the heat exchange tube group comprises a first heat exchange tube group, a second heat exchange tube group and a third heat exchange tube group which are arranged from top to bottom; the first heat exchange pipe set, the second heat exchange pipe set and the third heat exchange pipe set are respectively provided with a first refrigerant port and a second refrigerant port for the inlet and outlet of refrigerants; a first refrigerant port of the first heat exchange tube set is connected with the air pipe, a second refrigerant port of the first heat exchange tube set is connected with a first refrigerant port of the second heat exchange tube set, a second refrigerant port of the second heat exchange tube set is connected with a first refrigerant port of the third heat exchange tube set, and a second refrigerant port of the third heat exchange tube set is connected with the liquid pipe;
and a first refrigerant port of the third heat exchange tube set is connected with the positive end of a one-way conduction valve, and the negative end of the one-way conduction valve is connected with a second refrigerant port of the first heat exchange tube set.
Furthermore, the outdoor heat exchanger comprises two rows of heat exchange tubes, wherein one row of heat exchange tubes is positioned on the leeward side, and the other row of heat exchange tubes is positioned on the windward side;
the air pipe is positioned on the leeward side, and the liquid pipe is positioned on the windward side;
a first refrigerant port of the first heat exchange tube set is positioned on the leeward side, and a second refrigerant port of the first heat exchange tube set is positioned on the windward side;
a first refrigerant port of the second heat exchange tube set is positioned on the windward side, and a second refrigerant port of the second heat exchange tube set is positioned on the leeward side;
and a first refrigerant port of the third heat exchange tube group is positioned on the leeward side, and a second refrigerant port of the third heat exchange tube group is positioned on the windward side.
Still further, the first heat exchange tube group comprises a plurality of pairs of branches from top to bottom, and each pair of branches comprises two branches from top to bottom; in each pair of branches, one branch at the upper part is of an inverted U shape, and one branch at the lower part is of a positive U shape.
Furthermore, the first heat exchange tube group comprises two pairs of branches from top to bottom.
Still further, the first heat exchange tube group comprises three pairs of branches from top to bottom.
Further, the second heat exchange tube group comprises a plurality of pairs of branches from top to bottom, and each pair of branches comprises two branches from top to bottom; in each pair of branches, one branch at the upper part is of an inverted U shape, and one branch at the lower part is of a positive U shape.
Still further, the second heat exchange tube group comprises a pair of branches.
Furthermore, the second heat exchange tube group comprises a branch of a positive U shape.
Still further, the third heat exchange tube set comprises a first branch, a second branch and a third branch;
the first branch comprises a plurality of leeward side heat exchange tubes which are sequentially connected in series from top to bottom;
the second branch comprises a plurality of windward side heat exchange tubes which are sequentially connected in series from top to bottom;
the third branch is in a positive U shape;
one port of the first branch and one port of the second branch are respectively connected with a first refrigerant port of the third heat exchange tube group, the other port of the first branch and the other port of the second branch are respectively connected with one port of the third branch, and the other port of the third branch is connected with a second refrigerant port of the third heat exchange tube group.
Based on the design of the outdoor heat exchanger, the utility model provides an air conditioner which comprises the outdoor heat exchanger.
Compared with the prior art, the utility model has the advantages and positive effects that: according to the outdoor heat exchanger and the air conditioner, the first heat exchange pipe set, the second heat exchange pipe set and the third heat exchange pipe set are designed, the first refrigerant port of the third heat exchange pipe set is connected with the positive end of the one-way conduction valve, and the negative end of the one-way conduction valve is connected with the second refrigerant port of the first heat exchange pipe set; the flow path is reasonable in design, and the refrigerating capacity is effectively improved through twice supercooling during refrigeration; the pressure loss is reduced during heating, and the heat exchange capacity is enhanced.
Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an outdoor heat exchanger according to the present invention during a cooling operation;
fig. 2 is a schematic structural diagram of an embodiment of the outdoor heat exchanger according to the present invention during heating operation;
fig. 3 is a schematic structural diagram of another embodiment of the outdoor heat exchanger according to the present invention during a cooling operation;
fig. 4 is a schematic structural diagram of another embodiment of the outdoor heat exchanger according to the present invention during heating operation;
fig. 5 is a schematic structural diagram of another embodiment of the outdoor heat exchanger according to the present invention during a cooling operation;
fig. 6 is a schematic structural diagram of another embodiment of the outdoor heat exchanger according to the present invention during heating operation.
Reference numerals:
100. a first heat exchange tube set;
200. a second heat exchange tube set;
300. a third heat exchange tube set;
400. a connecting pipe;
500. a one-way conduction valve;
600. an air tube;
700. a liquid pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The utility model provides an outdoor heat exchanger and an air conditioner, aiming at the problems of unreasonable flow path design and poor heat exchange capability of the existing outdoor heat exchanger, and solving the problems of unreasonable flow path design and poor heat exchange capability. Hereinafter, the outdoor heat exchanger and the air conditioner according to the present invention will be described in detail with reference to the accompanying drawings.
The first embodiment,
The outdoor heat exchanger of the present embodiment includes an air pipe 600, a liquid pipe 700, a heat exchange pipe set, and the like, as shown in fig. 1 and 2.
The heat exchange tube set comprises a first heat exchange tube set 100, a second heat exchange tube set 200 and a third heat exchange tube set 300 which are arranged from top to bottom; the air pipe 600, the first heat exchange pipe group 100, the second heat exchange pipe group 200, the third heat exchange pipe group 300, and the liquid pipe 700 are connected in series in sequence.
Specifically, the first heat exchange tube group 100, the second heat exchange tube group 200, and the third heat exchange tube group 300 each have a first refrigerant port and a second refrigerant port for the ingress and egress of a refrigerant. A first refrigerant port of the first heat exchange tube set 100 is connected to the air pipe 600, a second refrigerant port of the first heat exchange tube set 100 is connected to a first refrigerant port of the second heat exchange tube set 200, a second refrigerant port of the second heat exchange tube set 200 is connected to a first refrigerant port of the third heat exchange tube set 300, and a second refrigerant port of the third heat exchange tube set 300 is connected to the liquid pipe.
A first refrigerant port of the third heat exchange tube set 300 is connected with a second refrigerant port of the first heat exchange tube set 100 through a connecting tube 400, and a one-way conduction valve 500 is arranged on the connecting tube 400; and the first refrigerant port of the third heat exchange tube set 300 is connected to the positive end of the one-way conduction valve 500, and the negative end of the one-way conduction valve 500 is connected to the second refrigerant port of the first heat exchange tube set 100. Fluid can only flow from the positive end to the negative end of the one-way conduction valve, and one-way conduction is realized.
When the air conditioner operates in a refrigerating mode, the flow path of a refrigerant is shown in figure 1, and the wind direction is from right to left; gaseous refrigerant in the air pipe 600 enters the first heat exchange tube set 100 through a first refrigerant port of the first heat exchange tube set 100, and flows out of a second refrigerant port of the first heat exchange tube set 100 after heat exchange of the refrigerant; then enters the second heat exchange tube set 200 through a first refrigerant port of the second heat exchange tube set 200, and flows out of a second refrigerant port of the second heat exchange tube set 200 after heat exchange of the refrigerant; and then enters the third heat exchange tube set 300 through the first refrigerant port of the third heat exchange tube set 300, and flows out from the second refrigerant port of the third heat exchange tube set 300 after the refrigerant exchanges heat, and then enters the liquid inlet tube 700.
Therefore, during the refrigeration operation, the refrigerant enters the heat exchanger from the upper part of the heat exchanger, the refrigerant is condensed in the first heat exchange tube set 100, then is supercooled for the first time in the second heat exchange tube set 200, and is supercooled for the second time in the third heat exchange tube set 300, and the refrigerating capacity is effectively improved through twice supercooling.
When the air conditioner is in heating operation, the flow path of the refrigerant is shown in figure 2, and the wind direction is from right to left; liquid refrigerant in the liquid pipe 700 enters the third heat exchange tube set 300 through the second refrigerant port of the third heat exchange tube set 300, and flows out from the first refrigerant port of the third heat exchange tube set 300 after heat exchange of the refrigerant; the refrigerant flowing out of the first refrigerant port of the third heat exchange tube set 300 is divided into two paths, wherein one path of refrigerant enters the connecting pipe 400, flows through the one-way conduction valve 500, and then flows to the second refrigerant port of the first heat exchange tube set 100; another path of refrigerant enters the second heat exchange tube set 200 through a second refrigerant port of the second heat exchange tube set 200, flows out from a first refrigerant port of the second heat exchange tube set 200 after heat exchange, joins with the refrigerant flowing out from the connecting pipe 400, enters the first heat exchange tube set 100 through a second refrigerant port of the first heat exchange tube set 100, flows out from a first refrigerant port of the first heat exchange tube set 100 after heat exchange, and then enters the air pipe 600.
Therefore, during heating operation, the refrigerant enters the heat exchanger from the lower part of the heat exchanger, the refrigerant is evaporated in the third heat exchange tube set 300, one path of the refrigerant enters the connecting pipe 400, and the other path of the refrigerant enters the second heat exchange tube set 200.
In the outdoor heat exchanger of the present embodiment, by designing the first heat exchange tube set 100, the second heat exchange tube set 200, and the third heat exchange tube set 300, a first refrigerant port of the third heat exchange tube set 300 is connected to a positive end of the one-way conduction valve 500, and a negative end of the one-way conduction valve 500 is connected to a second refrigerant port of the first heat exchange tube set 100; the flow path is reasonable in design, and the refrigerating capacity is effectively improved through twice supercooling during refrigeration; the pressure loss is reduced during heating, and the heat exchange capacity is enhanced.
In this embodiment, the outdoor heat exchanger includes two rows of heat exchange tubes, wherein one row of heat exchange tubes is located on the leeward side of the outdoor heat exchanger, and the other row of heat exchange tubes is located on the windward side of the outdoor heat exchanger.
The air pipe 600 is located at the leeward side of the outdoor heat exchanger, and the liquid pipe 700 is located at the windward side of the outdoor heat exchanger.
A first refrigerant port of the first heat exchange tube set 100 is located on the leeward side of the outdoor heat exchanger, and a second refrigerant port of the first heat exchange tube set 100 is located on the windward side of the outdoor heat exchanger.
A first refrigerant port of the second heat exchange tube set 200 is located on the windward side of the outdoor heat exchanger, and a second refrigerant port of the second heat exchange tube set 200 is located on the leeward side of the outdoor heat exchanger.
A first refrigerant port of the third heat exchange tube set 300 is located on the leeward side of the outdoor heat exchanger, and a second refrigerant port of the third heat exchange tube set 300 is located on the windward side of the outdoor heat exchanger.
During refrigeration, as shown in fig. 1, the refrigerant enters the first heat exchange tube set 100 against the wind, and then flows out of the first heat exchange tube set 100 against the wind, so that heat exchange of the refrigerant is facilitated, and the heat exchange effect is ensured; the refrigerant enters the second heat exchange tube set 200 along the wind and flows out of the second heat exchange tube set 200 along the wind; the refrigerant enters the third heat exchange tube set 300 in the headwind mode, and then flows out of the third heat exchange tube set 300 in the headwind mode, so that the heat exchange of the refrigerant is facilitated, and the heat exchange effect is guaranteed.
During heating, referring to fig. 2, the refrigerant enters the third heat exchange tube set 300 downwind, and then flows out of the third heat exchange tube set 300 downwind; the refrigerant enters the connecting pipe 400 and the second heat exchange pipe set 200 against the wind, and the refrigerant flows out of the connecting pipe 400 and the second heat exchange pipe set 200 against the wind, so that the heat exchange of the refrigerant is facilitated, and the heat exchange effect is ensured; the refrigerant enters the first heat exchange tube set 100 downwind, and then flows out of the first heat exchange tube set 100 downwind.
In this embodiment, the first heat exchange tube set 100 includes a plurality of pairs of branches arranged from top to bottom, and each pair of branches includes two branches arranged from top to bottom; in each pair of branches, one branch at the upper part is of an inverted U shape, and one branch at the lower part is of a positive U shape. The refrigerant entering the first heat exchange tube set 100 through the first refrigerant port/the second refrigerant port of the first heat exchange tube set 100 respectively enters the plurality of branches, the refrigerant is uniformly distributed, and the refrigerant performs sufficient heat exchange. By designing a plurality of pairs of branches, the refrigerant entering the first heat exchange tube set 100 is uniformly distributed; the branch design of the inverted U-shaped and the positive U-shaped makes the flow path design in the first heat exchange tube set 100 reasonable, the heat exchange is sufficient, and the heat exchange efficiency is high.
As a preferred design of this embodiment, the first heat exchange tube set 100 includes two pairs of branches arranged from top to bottom, each pair of branches includes two branches arranged from top to bottom, and each branch includes heat exchange tubes with equal number; that is, the first heat exchange tube set 100 includes 4 branches arranged from top to bottom, as shown in fig. 1 and 2. Two pairs of branches are designed in the first heat exchange tube set 100, so that the number of the branches is reasonable, and sufficient heat exchange of the refrigerant is guaranteed.
As another preferred design of this embodiment, the first heat exchange tube group 100 includes three pairs of branches arranged from top to bottom, and each pair of branches includes two branches arranged from top to bottom, that is, the first heat exchange tube group 100 includes 6 branches arranged from top to bottom, as shown in fig. 3, 4, 5, and 6. Three pairs of branches are designed in the first heat exchange tube group 100, so that the number of the branches is reasonable, and the refrigerant can be fully exchanged heat.
In this embodiment, the second heat exchange tube set 200 includes a plurality of pairs of branches arranged from top to bottom, and each pair of branches includes two branches arranged from top to bottom; in each pair of branches, one branch at the upper part is of an inverted U shape, and one branch at the lower part is of a positive U shape. The refrigerant entering the second heat exchange tube set 200 through the first refrigerant port/the second refrigerant port of the second heat exchange tube set 200 respectively enters the plurality of branches, the refrigerant is uniformly distributed, and the refrigerant performs sufficient heat exchange. By designing a plurality of pairs of branches, the refrigerant entering the second heat exchange tube group 200 is uniformly distributed; the branch design of the inverted U-shaped branch and the positive U-shaped branch makes the flow path design in the second heat exchange tube set 200 reasonable, the heat exchange is sufficient, and the heat exchange efficiency is high.
As a preferred design of this embodiment, the second heat exchange tube set 200 includes a pair of branches, and the pair of branches includes two branches arranged from top to bottom, that is, the second heat exchange tube set 200 includes 2 branches arranged from top to bottom, as shown in fig. 1, 2, 3, and 4. By designing a pair of branches in the second heat exchange tube set 200, the number of the branches is reasonable, and sufficient heat exchange of the refrigerant is ensured.
As another preferred design of this embodiment, the second heat exchange tube set 200 includes a branch of a positive U shape, as shown in fig. 5 and 6. By designing one branch in the second heat exchange tube set 200, the number of the branches is reasonable, and the refrigerant can be fully exchanged heat.
In this embodiment, the third heat exchange tube set 300 includes a first branch, a second branch, and a third branch;
the first branch comprises a plurality of leeward side heat exchange tubes which are sequentially connected in series from top to bottom;
the second branch comprises a plurality of windward side heat exchange tubes which are sequentially connected in series from top to bottom;
the third branch is in a positive U shape;
the first branch circuit and the second branch circuit are connected in parallel; one port of the first branch and one port of the second branch are respectively connected to a first refrigerant port of the third heat exchange tube set 300, the other port of the first branch and the other port of the second branch are respectively connected to one port of the third branch, and the other port of the third branch is connected to a second refrigerant port of the third heat exchange tube set 300.
During refrigeration, the refrigerant entering the third heat exchange tube set 300 through the first refrigerant port of the third heat exchange tube set 300 respectively enters the first branch and the second branch, flows out of the first branch and the second branch, enters the third branch, flows out of the third heat exchange tube set 300 through the second refrigerant port of the third heat exchange tube set 300, and finally flows into the liquid pipe 700.
During heating, the refrigerant entering the third heat exchange tube set 300 through the second refrigerant port of the third heat exchange tube set 300 enters the third branch, flows out of the third branch, flows into the first branch and the second branch, flows out of the first branch and the second branch, and flows out of the third heat exchange tube set 300 through the first refrigerant port of the third heat exchange tube set 300.
The first branch, the second branch and the third branch are designed in the third heat exchange tube set 300, so that the refrigerant entering the third heat exchange tube set 300 is uniformly distributed, the heat exchange is sufficient, and the heat exchange efficiency is high.
As a preferred design of this embodiment, referring to fig. 1 and 2, the outdoor heat exchanger includes 28 heat exchange tubes on the leeward side and 28 heat exchange tubes on the windward side. The first heat exchange tube set 100 includes two pairs of branches arranged from top to bottom, that is, 4 branches; the second heat exchange tube set 200 includes a pair of branches, i.e., 2 branches.
(1) First heat exchange tube set 100:
the 1 st branch of the 1 st pair of branches is in an inverted U shape and consists of No. 4 to No. 1 heat exchange tubes on the leeward side and No. 1 to No. 4 heat exchange tubes on the windward side;
the No. 2 branch of the No. 1 pair of branches is in a positive U shape and consists of No. 5 to No. 8 heat exchange tubes on the leeward side and No. 8 to No. 5 heat exchange tubes on the windward side;
the 1 st branch of the 2 nd pair of branches is in an inverted U shape and consists of No. 12 to No. 9 heat exchange tubes on the leeward side and No. 9 to No. 12 heat exchange tubes on the windward side;
the 2 nd branch road of the 2 nd pair of branch roads is positive U type, by 13 No. to 16 heat exchange tubes of leeward side and 16 No. to 13 heat exchange tubes of windward side.
(2) Second heat exchange tube set 200:
the 1 st branch is of an inverted U shape and consists of No. 20 to No. 17 heat exchange tubes on the windward side and No. 17 to No. 20 heat exchange tubes on the leeward side;
the 2 nd branch circuit is positive U type, comprises 21 No. to 24 heat exchange tubes of windward side and 24 No. to 21 heat exchange tubes of leeward side.
(3) The third heat exchange tube set 300:
the first branch is formed by connecting No. 25 and No. 26 heat exchange tubes on the leeward side in series;
the second branch is formed by connecting No. 25 and No. 26 heat exchange tubes on the windward side in series;
the third branch consists of No. 27 and No. 28 heat exchange tubes on the leeward side and No. 28 and No. 27 heat exchange tubes on the windward side.
As another preferred design of this embodiment, referring to fig. 3 and 4, the outdoor heat exchanger includes 28 heat exchange tubes on the leeward side and 28 heat exchange tubes on the windward side. The first heat exchange tube set 100 includes three pairs of branches, i.e., 6 branches, arranged from top to bottom; the second heat exchange tube set 200 includes a pair of branches, i.e., 2 branches.
(1) First heat exchange tube set 100:
the 1 st branch of the 1 st pair of branches is in an inverted U shape and consists of No. 4 to No. 1 heat exchange tubes on the leeward side and No. 1 to No. 4 heat exchange tubes on the windward side;
the No. 2 branch of the No. 1 pair of branches is in a positive U shape and consists of No. 5 to No. 8 heat exchange tubes on the leeward side and No. 8 to No. 5 heat exchange tubes on the windward side;
the 1 st branch of the 2 nd pair of branches is in an inverted U shape and consists of No. 12 to No. 9 heat exchange tubes on the leeward side and No. 9 to No. 12 heat exchange tubes on the windward side;
the 2 nd branch of the 2 nd pair of branches is a positive U-shaped branch, and consists of No. 13 to No. 16 heat exchange tubes on the leeward side and No. 16 to No. 13 heat exchange tubes on the windward side;
the No. 1 branch of the No. 3 pair of branches is of an inverted U shape and consists of No. 18 and No. 17 heat exchange tubes on the leeward side and No. 17 and No. 18 heat exchange tubes on the windward side;
the 2 nd branch of the 3 rd pair of branches is a positive U-shaped branch and consists of No. 19 and No. 20 heat exchange tubes on the leeward side and No. 20 and No. 19 heat exchange tubes on the windward side.
(2) Second heat exchange tube set 200:
the 1 st branch is of an inverted U shape and consists of No. 22 and No. 21 heat exchange tubes on the windward side and No. 21 and No. 22 heat exchange tubes on the leeward side;
the 2 nd branch is positive U type, comprises 23 No. of windward side, No. 24 heat exchange tube and 24 No. of leeward side, No. 23 heat exchange tube.
(3) The third heat exchange tube set 300:
the first branch is formed by connecting No. 25 and No. 26 heat exchange tubes on the leeward side in series;
the second branch is formed by connecting No. 25 and No. 26 heat exchange tubes on the windward side in series;
the third branch consists of No. 27 and No. 28 heat exchange tubes on the leeward side and No. 28 and No. 27 heat exchange tubes on the windward side.
As another preferable design of this embodiment, referring to fig. 5 and 6, the outdoor heat exchanger includes 28 heat exchange tubes on the leeward side and 28 heat exchange tubes on the windward side. The first heat exchange tube set 100 includes three pairs of branches, i.e., 6 branches, arranged from top to bottom; the second heat exchange tube set 200 includes 1 branch of a positive U-shape.
(1) First heat exchange tube set 100:
the 1 st branch of the 1 st pair of branches is in an inverted U shape and consists of No. 4 to No. 1 heat exchange tubes on the leeward side and No. 1 to No. 4 heat exchange tubes on the windward side;
the No. 2 branch of the No. 1 pair of branches is in a positive U shape and consists of No. 5 to No. 8 heat exchange tubes on the leeward side and No. 8 to No. 5 heat exchange tubes on the windward side;
the 1 st branch of the 2 nd pair of branches is in an inverted U shape and consists of No. 12 to No. 9 heat exchange tubes on the leeward side and No. 9 to No. 12 heat exchange tubes on the windward side;
the 2 nd branch of the 2 nd pair of branches is a positive U-shaped branch, and consists of No. 13 to No. 16 heat exchange tubes on the leeward side and No. 16 to No. 13 heat exchange tubes on the windward side;
the No. 1 branch of the No. 3 pair of branches is of an inverted U shape and consists of No. 20 to No. 17 heat exchange tubes on the leeward side and No. 17 to No. 20 heat exchange tubes on the windward side;
the 2 nd branch of the 3 rd pair of branches is positive U-shaped, and comprises No. 21 heat exchange tubes and No. 22 heat exchange tubes on the leeward side and No. 22 heat exchange tubes and No. 21 heat exchange tubes on the windward side.
(2) Second heat exchange tube set 200:
the 1 positive U-shaped branch consists of No. 23 and No. 24 heat exchange tubes on the windward side and No. 24 and No. 23 heat exchange tubes on the leeward side.
(3) The third heat exchange tube set 300:
the first branch is formed by connecting No. 25 and No. 26 heat exchange tubes on the leeward side in series;
the second branch is formed by connecting No. 25 and No. 26 heat exchange tubes on the windward side in series;
the third branch consists of No. 27 and No. 28 heat exchange tubes on the leeward side and No. 28 and No. 27 heat exchange tubes on the windward side.
In the outdoor heat exchanger of the embodiment, the refrigerant is firstly upwind and then downwind during refrigeration, and is finally supercooled; the flow path during refrigeration well realizes multi-path supercooling; during heating, the function of the one-way conduction valve is that the refrigerant is additionally provided with an inlet, so that the pressure loss is reduced, the heat exchange capacity is enhanced, and the high-efficiency heat exchange is realized.
The outdoor heat exchanger of the embodiment achieves the purpose that the refrigerant is firstly cooled against the wind and then cooled down along the wind during refrigeration, and effectively improves the refrigeration capacity; during heating, the refrigerant firstly enters from the bottom of the heat exchanger (i.e. the third heat exchange tube set 300), then is divided into multiple paths (three paths in fig. 2 and 4, and two paths in fig. 6) and sequentially enters the middle of the heat exchanger (i.e. the second heat exchange tube set 200), and finally enters the upper part of the heat exchanger (i.e. the first heat exchange tube set 100), so that heating is improved, and pressure loss is effectively reduced.
The outdoor heat exchanger of this embodiment, simple structure, the valve body is ripe, and the effect is good, and the cost is controllable.
The one-way conduction valve of the present embodiment may be a pressure one-way valve or a tesla valve, and is not limited to the above examples.
Example II,
The second embodiment provides an air conditioner, which includes the outdoor heat exchanger described in the first embodiment.
The outdoor heat exchanger is designed in the air conditioner, so that the heat exchange capacity is enhanced, the refrigerating and heating effects of the air conditioner are improved, and the market competitiveness is improved.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. An outdoor heat exchanger, characterized in that: the method comprises the following steps:
an air tube;
a liquid pipe;
the heat exchange tube group comprises a first heat exchange tube group, a second heat exchange tube group and a third heat exchange tube group which are arranged from top to bottom; the first heat exchange pipe set, the second heat exchange pipe set and the third heat exchange pipe set are respectively provided with a first refrigerant port and a second refrigerant port for the inlet and outlet of refrigerants; a first refrigerant port of the first heat exchange tube set is connected with the air pipe, a second refrigerant port of the first heat exchange tube set is connected with a first refrigerant port of the second heat exchange tube set, a second refrigerant port of the second heat exchange tube set is connected with a first refrigerant port of the third heat exchange tube set, and a second refrigerant port of the third heat exchange tube set is connected with the liquid pipe;
and a first refrigerant port of the third heat exchange tube set is connected with the positive end of a one-way conduction valve, and the negative end of the one-way conduction valve is connected with a second refrigerant port of the first heat exchange tube set.
2. The outdoor heat exchanger of claim 1, wherein: the outdoor heat exchanger comprises two rows of heat exchange tubes, wherein one row of heat exchange tubes is positioned on the leeward side, and the other row of heat exchange tubes is positioned on the windward side;
the air pipe is positioned on the leeward side, and the liquid pipe is positioned on the windward side;
a first refrigerant port of the first heat exchange tube set is positioned on the leeward side, and a second refrigerant port of the first heat exchange tube set is positioned on the windward side;
a first refrigerant port of the second heat exchange tube set is positioned on the windward side, and a second refrigerant port of the second heat exchange tube set is positioned on the leeward side;
and a first refrigerant port of the third heat exchange tube group is positioned on the leeward side, and a second refrigerant port of the third heat exchange tube group is positioned on the windward side.
3. The outdoor heat exchanger of claim 2, wherein: the first heat exchange tube group comprises a plurality of pairs of branches from top to bottom, and each pair of branches comprises two branches from top to bottom; in each pair of branches, one branch at the upper part is of an inverted U shape, and one branch at the lower part is of a positive U shape.
4. The outdoor heat exchanger of claim 3, wherein: the first heat exchange tube group comprises two pairs of branches from top to bottom.
5. The outdoor heat exchanger of claim 3, wherein: the first heat exchange tube group comprises three pairs of branches from top to bottom.
6. The outdoor heat exchanger of claim 2, wherein: the second heat exchange tube group comprises a plurality of pairs of branches from top to bottom, and each pair of branches comprises two branches from top to bottom; in each pair of branches, one branch at the upper part is of an inverted U shape, and one branch at the lower part is of a positive U shape.
7. The outdoor heat exchanger of claim 6, wherein: the second heat exchange tube group comprises a pair of branches.
8. The outdoor heat exchanger of claim 2, wherein: the second heat exchange tube group comprises a positive U-shaped branch.
9. The outdoor heat exchanger of claim 2, wherein: the third heat exchange tube set comprises a first branch, a second branch and a third branch;
the first branch comprises a plurality of leeward side heat exchange tubes which are sequentially connected in series from top to bottom;
the second branch comprises a plurality of windward side heat exchange tubes which are sequentially connected in series from top to bottom;
the third branch is in a positive U shape;
one port of the first branch and one port of the second branch are respectively connected with a first refrigerant port of the third heat exchange tube group, the other port of the first branch and the other port of the second branch are respectively connected with one port of the third branch, and the other port of the third branch is connected with a second refrigerant port of the third heat exchange tube group.
10. An air conditioner, characterized in that: comprising an outdoor heat exchanger according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122234619.7U CN216159183U (en) | 2021-09-15 | 2021-09-15 | Outdoor heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122234619.7U CN216159183U (en) | 2021-09-15 | 2021-09-15 | Outdoor heat exchanger and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN216159183U true CN216159183U (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122234619.7U Active CN216159183U (en) | 2021-09-15 | 2021-09-15 | Outdoor heat exchanger and air conditioner |
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| Country | Link |
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| CN (1) | CN216159183U (en) |
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- 2021-09-15 CN CN202122234619.7U patent/CN216159183U/en active Active
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