CN-117146478-B - Heat exchanger and air conditioner

CN117146478BCN 117146478 BCN117146478 BCN 117146478BCN-117146478-B

Abstract

The invention provides a heat exchanger and an air conditioner, wherein the heat exchanger comprises a heat exchanger body, a plurality of refrigerant pipeline inlets and a plurality of refrigerant pipeline outlets are arranged on the heat exchanger body, the plurality of refrigerant pipeline inlets are connected with the condenser liquid inlet manifold, and the number of the plurality of refrigerant pipeline inlets is larger than that of the plurality of refrigerant pipeline outlets. The embodiment of the invention improves the mass flow rate of the refrigerant in the low dryness area, thereby improving the heat transfer effect.

Inventors

Zhao Youji
CHEN JUN
LIU HENGHENG
DENG ZELONG
YAN SHICHANG
GUO XIAOYING
KANG HONGYAN
YAN XIAOQI

Assignees

宁波奥克斯电气股份有限公司
奥克斯空调股份有限公司

Dates

Publication Date: 20260505
Application Date: 20220524

Claims (7)

1. A heat exchanger, comprising: The heat exchanger comprises a heat exchanger body, wherein a condenser liquid inlet main pipe (110) and a condenser liquid outlet main pipe are arranged on the heat exchanger body; a plurality of refrigerant pipeline inlets and a plurality of refrigerant pipeline outlets, wherein the plurality of refrigerant pipeline inlets and the plurality of refrigerant pipeline outlets are arranged on the heat exchanger body, and the plurality of refrigerant pipeline inlets are connected with the condenser liquid inlet header pipe (110); Wherein the number of the inlets of the plurality of refrigerant pipelines is greater than the number of the outlets of the plurality of refrigerant pipelines; The plurality of supercooling areas are arranged between the refrigerant pipeline outlets and the condenser liquid outlet main pipe, and the rest supercooling areas are arranged between the plurality of refrigerant pipeline outlets; wherein the plurality of supercooling areas and the refrigerant pipeline outlets are arranged in the same quantity; The plurality of common pipes are arranged in one-to-one correspondence with the plurality of supercooling areas.
2. The heat exchanger of claim 1, wherein the refrigerant line inlet comprises: a liquid inlet branch pipe connected with the condenser liquid inlet main pipe (110); And one end of the liquid outlet branch pipe is connected with the liquid inlet branch pipe, and the opposite end is connected with the refrigerant pipeline outlet.
3. A heat exchanger according to claim 1 wherein, The plurality of refrigerant pipeline inlets are provided with three refrigerant pipeline inlets (111), a second refrigerant pipeline inlet (112) and a third refrigerant pipeline inlet (113); the plurality of refrigerant pipeline outlets are provided with two first refrigerant pipeline outlets (121) and second refrigerant pipeline outlets (122) respectively; the first refrigerant pipeline inlet (111) and the third refrigerant pipeline inlet (113) are connected with the first refrigerant pipeline outlet (121), and the second refrigerant pipeline inlet (112) is connected with the second refrigerant pipeline outlet (122).
4. A heat exchanger according to claim 3, further comprising: a first supercooling region (131), one end of the first supercooling region (131) is connected with the first refrigerant pipeline outlet (121), and the opposite end is connected with the second refrigerant pipeline outlet (122); And one end of the second supercooling region (132) is connected with the second refrigerant pipeline outlet (122), and the opposite end is connected with the condenser liquid outlet main pipe.
5. The heat exchanger of claim 4, further comprising: A first common pipe (141), one end of the first common pipe (141) is connected with the first supercooling region (131), and the opposite end is connected with the second supercooling region (132); And one end of the second common pipe (142) is connected with the second supercooling region (132), and the other opposite end is connected with the condenser liquid outlet main pipe.
6. An air conditioner, comprising: an air conditioner body; the heat exchanger (100) of any of claims 1-5, the heat exchanger (100) being provided within the air conditioner body.
7. The air conditioner according to claim 6, wherein, The heat exchanger (100) comprises: a throttling device (150), wherein the throttling device (150) is connected with the condenser liquid outlet main pipe; an evaporator (170), the evaporator (170) being connected to the throttling means (150); -a condenser (160), said condenser (160) being connected to said throttling means (150); the air conditioner (200) further includes a compressor (210), the compressor (210) connecting the evaporator (170) and the condenser (160); When the heat exchanger is in a refrigeration mode, the condenser liquid outlet main pipe enables a refrigerant to enter the evaporator (170) through the throttling device (150), and finally is discharged to the condenser (160) through the compressor (210); when the heat exchanger is in a heating mode, the condenser liquid outlet header pipe enables the refrigerant to enter the condenser (160) through the throttling device (150), and finally is discharged to the evaporator (170) through the compressor (210).

Description

Heat exchanger and air conditioner Technical Field The invention relates to the technical field of air conditioners, in particular to a heat exchanger and an air conditioner. Background With the improvement of living standard, the air conditioner is popularized, so that the air conditioner becomes an indispensable part of modern life. However, in the actual construction process, the problem exists that in the air conditioning system at present, under the condition that a check valve is not arranged in a refrigerant flow path of a heat exchanger, the number of liquid inlet branch pipes is generally the same as that of liquid outlet pipes, and finally the liquid inlet branch pipes and the liquid outlet pipes are integrated into a common pipe, the flow path is provided with only one common pipe, the flow path refrigerant is unevenly distributed, and the pressure loss of the common pipe is overlarge. And during heating, the refrigerant enters supercooling in advance, so that the problem of early frosting of the lower part of the heat exchanger is caused. Disclosure of Invention Therefore, the embodiment of the invention provides the heat exchanger, which improves the mass flow rate of the refrigerant in the low dryness area, thereby improving the heat transfer effect. The invention provides a heat exchanger which comprises a heat exchanger body, wherein a condenser liquid inlet main pipe and a condenser liquid outlet main pipe are arranged on the heat exchanger body, a plurality of refrigerant pipeline inlets and a plurality of refrigerant pipeline outlets are formed in the heat exchanger body, the plurality of refrigerant pipeline inlets and the plurality of refrigerant pipeline outlets are connected with the condenser liquid inlet main pipe, and the number of the plurality of refrigerant pipeline inlets is larger than that of the plurality of refrigerant pipeline outlets. Compared with the prior art, the technical effect achieved by adopting the technical scheme is that under the condition that a heat exchanger refrigerant flow path is provided with no one-way valve, the number of liquid inlet branch pipes and the number of liquid outlet pipes are generally the same, and finally the liquid inlet branch pipes and the number of liquid outlet pipes are summarized to one common pipe, and the flow path has the problems of uneven distribution of the refrigerant in the flow path and overlarge pressure loss of the common pipe. In one embodiment of the invention, the condenser further comprises a plurality of supercooling areas, at least one supercooling area of the supercooling areas is arranged between the refrigerant pipeline outlet and the condenser liquid outlet main pipe, and the rest supercooling areas are arranged between the refrigerant pipeline outlets. Wherein, the plurality of supercooling areas and the refrigerant pipeline outlets are arranged in the same quantity. Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the supercooling region is arranged between the outlet of the refrigerant pipeline and the liquid outlet main pipe of the condenser, and the supercooling region is arranged between the outlets of the plurality of refrigerant pipelines, so that the efficiency of the heat exchanger during refrigeration and heating is improved, and the refrigeration energy efficiency of a finished product is improved. In one example of the invention, the system further comprises a plurality of common pipes, wherein the plurality of common pipes are arranged in a one-to-one correspondence with the plurality of supercooling areas. Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the common pipes are arranged in one-to-one correspondence with the supercooling areas, so that on one hand, the common pipes can avoid simultaneous collection of multiple branches, and on the other hand, the common pipes can reduce the pressure of refrigerant circulation, thereby improving the energy efficiency of heating and refrigerating, reducing the manufacturing cost of pipeline parts and improving the production efficiency. In one embodiment of the invention, the refrigerant pipeline inlet comprises a liquid inlet branch pipe and a liquid outlet branch pipe, wherein the liquid inlet branch pipe is connected with the liquid inlet main pipe of the condenser, one end of the liquid outlet branch pipe is connected with the liquid inlet branch pipe, and the other opposite end of the liquid outlet branch pipe is connected with the refrigerant pipeline outlet. Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the inlet of the refrigerant pipeline is arranged into the liquid inlet branch pipe and the liquid outlet branch pipe, and the discharge of the refrigerant is realized through the liquid inlet branch pipe and the liquid outlet branch pipe. In one embodiment of the invention, the plurality o