A heat exchanger with high heat exchange stability

Abstract

This utility model provides a heat exchanger with high heat exchange stability, including a heat exchange shell and heat exchange tubes. The heat exchange shell has a heat exchange inner cavity, and the heat exchange tubes are installed in the heat exchange inner cavity. The heat exchange shell has a refrigerant connector, and the heat exchange shell is connected to a refrigerant inlet pipe and a refrigerant outlet pipe. The inner end of the refrigerant connector is inclined towards the center of the heat exchange inner cavity and is mounted on the heat exchange shell, and has an outer end. The refrigerant inlet pipe is adapted to be installed on the outer end, so that the refrigerant inlet pipe is inclinedly connected to the heat exchange inner cavity. The refrigerant outlet pipe is installed on the top of the heat exchange shell, and the inlet end of the refrigerant outlet pipe penetrates the heat exchange shell and extends to the bottom of the heat exchange inner cavity. The structure is simple, and the uniform assembly position and angle ensure a uniform distribution of the refrigerant exhaust and intake fluid states. It also reduces the risk of weld breakage caused by vibration during refrigerant operation, increases operational stability, and ensures the product's performance.

Description

Technical Field

[0001] This utility model relates to the technical field of heat exchangers, specifically a heat exchanger with high heat exchange stability. Background Technology

[0002] With the continuous improvement of living standards, existing heat pump systems are widely used, utilizing the heat absorption and release phenomena generated by the liquid and gas phase changes of the refrigerant. For example, in the air conditioning cooling process, the refrigerant is drawn into the compressor and compressed, then releases heat and condenses into a liquid in the condenser. It then passes through a throttling device to reduce its pressure, and finally enters the heat exchanger to absorb heat and evaporate, returning to the compressor as vapor, thus realizing the refrigeration cycle and regulating the temperature of the medium or the surrounding environment. In the air conditioning heating process, the refrigerant is drawn into the compressor and compressed, then releases heat and condenses in the heat exchanger. It then passes through a throttling device to reduce its pressure, and finally enters the evaporator to absorb heat and evaporate into a gas, flowing back to the compressor.

[0003] The heat exchanger with the above structure basically includes a heat exchange shell for storing refrigerant and heat exchange tubes for the flow of the medium. The heat exchange shell has a heat exchange cavity, and the heat exchange tubes are installed in the heat exchange cavity. The liquid inlet end and liquid outlet end of the heat exchange tubes extend outward through the heat exchange shell. At the same time, a refrigerant inlet pipe and a refrigerant outlet pipe are directly welded to the heat exchange cavity.

[0004] However, existing heat exchangers have the following shortcomings during use:

[0005] 1) The existing refrigerant pipes have shallow overlap depths when directly welded, which can lead to cracking.

[0006] 2) Existing refrigerant pipes have different heat exchange performances due to differences in assembly depth, angle, and other positions.

[0007] 3) The existing eccentric installation method of refrigerant pipes will cause differences in refrigerant flow rate and flow deviation. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat exchanger with high heat exchange stability.

[0009] The objective of this invention is achieved as follows: A heat exchanger with high heat exchange stability includes a heat exchange shell for storing refrigerant and a heat exchange tube for supplying heat exchange through medium flow. The heat exchange shell has a heat exchange inner cavity, and the heat exchange tube is installed in the heat exchange inner cavity. The heat exchange shell is provided with a refrigerant connector for uniformly distributing the refrigerant's exhaust and intake fluid states within the heat exchange inner cavity. The heat exchange shell is connected to a refrigerant inlet pipe and a refrigerant outlet pipe. The inner connecting end of the refrigerant connector is obliquely mounted to the heat exchange shell towards the center of the heat exchange inner cavity and has an outer connecting end for increasing the connection depth of the refrigerant inlet pipe. The refrigerant inlet pipe is adapted to be installed at the outer connecting end of the refrigerant connector so that the refrigerant inlet pipe is obliquely connected to the heat exchange inner cavity. The refrigerant outlet pipe is installed at the top of the heat exchange shell, and the inlet end of the refrigerant outlet pipe penetrates the heat exchange shell and extends to the bottom of the heat exchange inner cavity.

[0010] Based on the above optimization, the refrigerant connector is welded obliquely to the heat exchange shell.

[0011] Alternatively, the refrigerant connector is angled and snapped onto the heat exchange housing.

[0012] Alternatively, the refrigerant connector is threaded obliquely onto the heat exchange housing.

[0013] Based on the above optimization, the connection depth of the outer connection end of the refrigerant connector is 15-18mm.

[0014] Based on the above optimization, a central tube is provided in the center of the heat exchange cavity, the heat exchange tube is coiled on the central tube, and the center of the inner connection end of the refrigerant connector corresponds to the center of the central tube and is on the same straight line.

[0015] Based on the above optimization, the refrigerant inlet pipe is welded to the outer connection end of the refrigerant connector, the refrigerant outlet pipe is welded to the top of the heat exchange shell, and the inlet end of the refrigerant outlet pipe penetrates the heat exchange shell and extends to the central pipe to communicate with the bottom of the heat exchange cavity.

[0016] Based on the above optimization, the refrigerant connector is set as a copper-plated connector.

[0017] Based on the above optimization, the heat exchange tube is connected to a medium inlet pipe and a medium outlet pipe, and the medium inlet pipe and the medium outlet pipe are distributed diagonally on the heat exchange shell.

[0018] The advantages of this utility model are:

[0019] 1) By adding a refrigerant connector, it is easier to assemble the refrigerant inlet pipe onto the heat exchange shell. At the same time, the connection depth of the refrigerant inlet pipe is increased, reducing the risk of weld breakage caused by vibration during refrigerant operation and increasing operational stability.

[0020] 2) By adding refrigerant connectors, the refrigerant inlet pipes are uniformly assembled in position and angle, simplifying the structure and effectively reducing the heat exchange capacity difference caused by assembly differences. The heat exchange capacity difference is reduced from ±5% to ±1.5%, and the stability is greatly improved by 70%.

[0021] 3) By matching the refrigerant connector with the heat exchange shell, the port of the refrigerant inlet pipe corresponds to the center pipe of the heat exchange cavity, so that the fluid state of refrigerant exhaust and intake is evenly distributed, avoiding the phenomenon of flow deviation caused by the difference in refrigerant flow rate. Attached Figure Description

[0022] Appendix Figure 1 This is a cross-sectional view of a preferred embodiment of the present invention.

[0023] Appendix Figure 2 This is a top view of a preferred embodiment of the present invention. Detailed Implementation

[0024] The present invention will now be further described with reference to the accompanying drawings.

[0025] According to the appendix Figures 1 to 2 As shown, the heat exchanger of this invention with high heat exchange stability includes a heat exchange shell 1 for storing refrigerant and heat exchange tubes for the flow of the refrigerant. The heat exchange shell 1 has a heat exchange inner cavity 2, and the heat exchange tubes are installed in the heat exchange inner cavity 2. The heat exchange shell 1 has a refrigerant connector 3 for uniformly distributing the refrigerant's exhaust and intake fluid states within the heat exchange inner cavity 2. The heat exchange shell 1 is connected to a refrigerant inlet pipe 4 and a refrigerant outlet pipe 5. The inner end of the refrigerant connector 3 is obliquely mounted to the center of the heat exchange inner cavity 2 and has an outer end that increases the connection depth of the refrigerant inlet pipe 4. The refrigerant inlet pipe 4 is adapted to be installed on the refrigerant connector 3 so that it obliquely connects to the heat exchange inner cavity 2. The refrigerant outlet pipe 5 is installed at the top of the heat exchange shell 1, and its inlet end penetrates the heat exchange shell 1 and extends to the bottom of the heat exchange inner cavity 2.

[0026] In practical applications, the heat exchange tube is connected to a medium inlet pipe 7 and a medium outlet pipe 8, which are distributed diagonally on the heat exchange shell 1.

[0027] Furthermore, the refrigerant connector 3 is welded obliquely to the heat exchange housing 1. Alternatively, the refrigerant connector 3 is snapped obliquely onto the heat exchange housing 1. Alternatively, the refrigerant connector 3 is threaded obliquely onto the heat exchange housing 1.

[0028] By adding a refrigerant connector 3, the refrigerant inlet pipe 4 and refrigerant outlet pipe 5 are assembled in the same position and angle, which effectively reduces the difference in heat exchange capacity caused by assembly differences, reducing the difference in heat exchange capacity from ±5% to ±1.5%, and greatly improving stability by 70%.

[0029] Reference Figures 1 to 2 As shown, in further detail, the refrigerant inlet pipe 4 is welded to the refrigerant connector 3, the refrigerant outlet pipe 5 is welded to the top of the heat exchange shell 1, and the inlet end of the refrigerant outlet pipe 5 penetrates the heat exchange shell 1 and extends to the central pipe 6 to communicate with the bottom of the heat exchange inner cavity 2.

[0030] The refrigerant connector 3 is a copper-plated connector.

[0031] Furthermore, the connection depth of the outer connection end of the refrigerant connector 3 is 15-18mm.

[0032] In this way, by adding refrigerant connector 3, it is not only convenient for the refrigerant inlet pipe 4 and the refrigerant outlet pipe 5 to be assembled on the heat exchange shell 1, so that the assembly is uniform, but also the connection depth with the refrigerant inlet pipe 4 is increased, reducing the risk of weld breakage caused by vibration during refrigerant operation, strengthening structural stability and increasing operational stability.

[0033] In addition, a central tube 6 is provided in the center of the heat exchange cavity 2, and the heat exchange tube is coiled on the central tube 6. The center of the inner connection end of the refrigerant connector 3 corresponds to the center of the central tube 6 and is on the same straight line.

[0034] By matching the refrigerant connector 3 with the heat exchange shell 1, the port of the refrigerant inlet pipe 4 is set to correspond to the central pipe 6 of the heat exchange inner cavity 2. During operation, the fluid state of refrigerant exhaust and intake is evenly distributed to both sides of the central pipe 6, avoiding the phenomenon of flow deviation caused by the difference in refrigerant flow rate.

[0035] The above specific embodiments are only specific implementations of the present invention with better effects. Any structure that is the same as or equivalent to the heat exchanger with high heat exchange stability of the present invention is within the protection scope of the present invention.

Claims

1. A heat exchanger with high heat exchange stability, comprising a heat exchange shell (1) for storing refrigerant and heat exchange tubes for heat exchange of the medium, wherein the heat exchange shell (1) is provided with a heat exchange cavity (2), and the heat exchange tubes are installed in the heat exchange cavity (2), characterized in that: The heat exchange shell (1) is provided with a refrigerant connector (3) for uniformly distributing the fluid state of refrigerant exhaust and intake in the heat exchange inner cavity (2). The heat exchange shell (1) is connected to a refrigerant inlet pipe (4) and a refrigerant outlet pipe (5). The inner connection end of the refrigerant connector (3) is mounted on the heat exchange shell (1) at an incline toward the center of the heat exchange inner cavity (2) and has an outer connection end for increasing the connection depth of the refrigerant inlet pipe (4). The refrigerant inlet pipe (4) is adapted to be installed on the outer connection end of the refrigerant connector (3) so that the refrigerant inlet pipe (4) is inclinedly connected to the heat exchange inner cavity (2). The refrigerant outlet pipe (5) is installed on the top of the heat exchange shell (1), and the inlet end of the refrigerant outlet pipe (5) penetrates the heat exchange shell (1) and extends to the bottom of the heat exchange inner cavity (2).

2. The heat exchanger with high heat exchange stability according to claim 1, characterized in that: The refrigerant connector (3) is welded at an angle to the heat exchange shell (1).

3. The heat exchanger with high heat exchange stability according to claim 1, characterized in that: The refrigerant connector (3) is obliquely fastened to the heat exchange shell (1).

4. The heat exchanger with high heat exchange stability according to claim 1, characterized in that: The refrigerant connector (3) is threadedly connected to the heat exchange shell (1) at an angle.

5. The heat exchanger with high heat exchange stability according to claim 1, characterized in that: The connection depth of the outer connection end of the refrigerant connector (3) is 15-18mm.

6. The heat exchanger with high heat exchange stability according to claim 1, characterized in that: The heat exchange cavity (2) is provided with a central tube (6) in the center, and the heat exchange tube is coiled on the central tube (6). The center of the inner connection end of the refrigerant connector (3) corresponds to the center of the central tube (6) and is on the same straight line.

7. The heat exchanger with high heat exchange stability according to claim 6, characterized in that: The refrigerant inlet pipe (4) is welded to the outer connection end of the refrigerant connector (3), the refrigerant outlet pipe (5) is welded to the top of the heat exchange shell (1), and the inlet end of the refrigerant outlet pipe (5) penetrates the heat exchange shell (1) and extends to the central pipe (6) to communicate with the bottom of the heat exchange cavity (2).

8. The heat exchanger with high heat exchange stability according to claim 1, characterized in that: The refrigerant connector (3) is a copper-plated connector.

9. The heat exchanger with high heat exchange stability according to claim 1, characterized in that: The heat exchange tube is connected to a medium inlet pipe (7) and a medium outlet pipe (8), which are diagonally distributed on the heat exchange shell (1).

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