CN-224230386-U - High-efficient combination formula reposition of redundant personnel heat exchanger

Abstract

The utility model particularly relates to a high-efficiency combined type split-flow heat exchanger which comprises a gas collecting pipe, an upper heat exchange flow path, a lower heat exchange flow path, a splitter, a branch gas pipe, a one-way valve, a first throttling device, a second throttling device and a split-flow throttling pipe, wherein the splitter is communicated with the upper heat exchange flow path through two paths of split-flow pipes and is communicated with the lower heat exchange flow path through one path of split-flow pipes, the upper heat exchange flow path is communicated with the gas collecting pipe through two paths of branch gas pipes, one end of the one-way valve is connected with the gas collecting pipe, the other end of the one-way valve is connected with the lower heat exchange flow path, the conduction direction of the one-way valve flows from the lower heat exchange flow path to the gas collecting pipe, one end of the first throttling device is communicated with the splitter, the other end of the split-flow throttling pipe is communicated with the lower heat exchange flow path, the other end of the split-flow throttling pipe is communicated with the indoor heat exchanger, and the second throttling device is arranged on the split-flow throttling pipe. The cooling and heating can realize optimal split control by dividing the split flow into 2 condensing flow paths and 2 supercooling flow paths.

Inventors

• REN JIE
• TAKEUCHI NOBUYUKI
• XIANG JINBO

Assignees

• 三菱重工海尔(青岛)空调机有限公司

Dates

Publication Date

20260512

Application Date

20250429

Claims (2)

1. 1. The high-efficiency combined type split-flow heat exchanger comprises a gas collecting pipe, an upper heat exchange flow path, a lower heat exchange flow path, a splitter and a branch gas pipe, wherein the splitter is communicated with the upper heat exchange flow path through two paths of split-flow pipes and is communicated with the lower heat exchange flow path through one path of split-flow pipes, and the upper heat exchange flow path is communicated with the gas collecting pipe through two paths of branch gas pipes.
2. 2. The efficient combined type split-flow heat exchanger as claimed in claim 1, wherein the first throttling device and the second throttling device are one or two of an electronic expansion valve, a capillary tube and a throttling valve.

Description

High-efficient combination formula reposition of redundant personnel heat exchanger Technical Field The utility model relates to the technical field of air conditioner heat exchangers, in particular to a high-efficiency combined split-flow heat exchanger. Background With the continuous development of air conditioning technology, the comfort and efficient heat exchange of the product are more and more important. The existing air conditioner products are of split structures and comprise an indoor unit and an outdoor unit. The heat exchange efficiency of the heat exchanger can directly influence the refrigerating and heating performance of the air conditioner. When the air conditioner is used for refrigerating, the outdoor heat exchanger is used as a condenser, the less the split is, the better, when the air conditioner heats, the more the outdoor condenser is, the better. At present, most of the conditions exist that a heating and refrigerating shared system is shunted, so that the efficient heat exchange of the heat exchanger in different operation modes can not be simultaneously met, and the optimal energy-saving effect of the air conditioner can not be achieved. Disclosure of utility model The utility model aims to provide a high-efficiency combined split-flow heat exchanger so as to solve the problem that the existing air-conditioner heat exchanger cannot meet the requirement of high-efficiency heat exchange in different operation modes. In order to achieve the above purpose, the present utility model provides the following technical solutions: the high-efficiency combined type split-flow heat exchanger comprises a gas collecting pipe, an upper heat exchange flow path, a lower heat exchange flow path, a splitter and a branch gas pipe, wherein the splitter is communicated with the upper heat exchange flow path through two paths of split-flow pipes and is communicated with the lower heat exchange flow path through one path of split-flow pipes, and the upper heat exchange flow path is communicated with the gas collecting pipe through two paths of branch gas pipes. Preferably, the first throttling device and the second throttling device adopt one or two of an electronic expansion valve, a capillary tube and a throttling valve. Compared with the prior art, the utility model has the beneficial effects that: The heat exchanger is divided into 4 evaporation flow paths in average during heating, the flow is divided into 2 condensation flow paths and 2 supercooling flow paths during cooling, the condensation and supercooling ratio is 1:1, the optimal flow distribution control can be realized during cooling and heating, the flow rate of the refrigerant is high and the supercooling is large when the heat exchanger is used as a condenser, the flow distribution number is large when the heat exchanger is used as an evaporator, the pressure drop of a system is small, the heat exchange capacity and efficiency are greatly improved, and the performance and the energy efficiency of the whole machine are improved. Drawings FIG. 1 is a schematic diagram of a high efficiency combined split flow heat exchanger of the present utility model; FIG. 2 is a schematic diagram of the refrigerant flow direction of the high-efficiency combined split-flow heat exchanger according to the present utility model; FIG. 3 is a schematic diagram of the flow direction of the heating refrigerant of the high-efficiency combined split-flow heat exchanger according to the present utility model. In the figure, a gas collecting tube 1, an upper heat exchange flow path 2, a lower heat exchange flow path 3, a flow divider 4, a branch gas tube 5, a flow dividing tube 6, a one-way valve 7, a first throttling device 8, a second throttling device 9 and a flow dividing throttling tube 10 are shown. Detailed Description In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model. Examples Referring to fig. 1 to 3, a high-efficiency combined split-flow heat exchanger includes a gas collecting tube 1, an upper heat exchange flow path 2, a lower heat exchange flow path 3, a splitter 4, and a branch gas pipe 5, wherein the splitter 4 is communicated with the upper heat exchange flow path 2 through two branch gas pipes 6, is communicated with the lower heat exchange flow path 3 through one branch gas pipe 6, the upper heat exchange flow path 2 is communicated with the gas collecting tube 1 throug