Built-in efficient heat exchanger

Abstract

The utility model provides a built-in efficient heat exchanger which comprises a heat exchange shell for storing a refrigerant and a heat exchange pipe for medium circulation and heat exchange, the heat exchange shell is provided with a heat exchange inner cavity, the heat exchange pipe is installed in the heat exchange inner cavity, the heat exchange shell is provided with a built-in integrated pipe set, the built-in integrated pipe set comprises an integrated liquid inlet pipe and an integrated liquid outlet pipe, and the integrated liquid inlet pipe is connected with the integrated liquid outlet pipe. The inner connecting end of the integrated liquid inlet pipe and the inner connecting end of the integrated liquid outlet pipe are connected to the heat exchange shell and extend to the heat exchange inner cavity, and the liquid inlet end and the liquid outlet end of the heat exchange pipe communicate with the integrated liquid inlet pipe and the integrated liquid outlet pipe in an integrated mode. The structure is simple, the heat exchange tubes made of different materials are effectively prevented from being directly welded on the heat exchange shell, and the pressure resistance of the product is improved; meanwhile, effective utilization pipe sections of the heat exchange pipes are increased, the heat exchange capacity of the heat exchanger is improved, and the product manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of heat exchangers, specifically a built-in high-efficiency heat exchanger. 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 refrigerant. The heat exchange shell is provided with a heat exchange inner cavity. The heat exchange tubes are installed in the heat exchange inner cavity and their liquid inlet and liquid outlet ends extend through the heat exchange shell and are connected to the external water supply pipe and the external water outlet pipe, respectively.

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

[0005] 1) Existing heat exchangers have exposed heat exchange tube sections that do not perform heat exchange, which is a waste of materials and increases manufacturing costs.

[0006] 2) The connection between the heat exchange tubes and the heat exchange shell of existing heat exchangers is mostly made of metals of different materials by welding, which has low strength.

[0007] 3) Due to the large number of welding areas between the exposed heat exchange tube sections and the heat exchange shell, the overall pressure resistance of the heat exchanger is weak. As a result, more manufacturing materials are required to ensure safe use, which affects the heat exchange capacity and increases the cost of use. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing a built-in high-efficiency heat exchanger.

[0009] The purpose of this invention is achieved as follows: A built-in high-efficiency heat exchanger includes a heat exchange shell for storing refrigerant and a heat exchange tube for the flow and heat exchange of the medium. The heat exchange shell is provided with 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 built-in integrated tube assembly, which includes an integrated liquid inlet pipe and an integrated liquid outlet pipe. The inner connecting ends of the integrated liquid inlet pipe and the integrated liquid outlet pipe are respectively connected to the heat exchange shell and extend to the heat exchange inner cavity. The liquid inlet end and the liquid outlet end of the heat exchange tube are respectively integrated and connected to the integrated liquid inlet pipe and the integrated liquid outlet pipe.

[0010] Based on the above optimization, the heat exchange cavity is equipped with at least one spirally arranged heat exchange tube, and the liquid inlet end and liquid outlet end of the heat exchange tube are respectively welded to the inner connection end of the integrated liquid inlet pipe and the integrated liquid outlet pipe.

[0011] Alternatively, the heat exchange cavity is equipped with at least one spirally arranged heat exchange tube, and the inlet and outlet ends of the heat exchange tube are respectively threaded to the inner connection ends of the integrated inlet and outlet pipes.

[0012] Alternatively, the heat exchange cavity is equipped with at least one spirally arranged heat exchange tube, and the inlet and outlet ends of the heat exchange tube are respectively connected to the inner connection ends of the integrated inlet and outlet tubes by snap-fit.

[0013] Based on the above optimization, the integrated liquid inlet pipe and the integrated liquid outlet pipe are diagonally distributed on the heat exchange shell, and the integrated liquid inlet pipe and the integrated liquid outlet pipe of the heat exchange shell each have an external connection end extending outside the heat exchange shell. The external connection end of the integrated liquid inlet pipe and the integrated liquid outlet pipe of the heat exchange shell are respectively provided with an external threaded part that connects to the external liquid inlet pipe and the external liquid outlet pipe.

[0014] Based on the above optimization, the heat exchange inner cavity is connected to a refrigerant inlet pipe and a refrigerant outlet pipe, and the refrigerant outlet pipe and the refrigerant inlet pipe are diagonally distributed on the heat exchange outer shell.

[0015] The advantages of this utility model are:

[0016] 1) By adding a built-in integrated tube assembly, the integrated liquid inlet pipe and integrated liquid outlet pipe of the built-in integrated tube assembly are connected to the heat exchange shell without welding. The structure is simple and effectively avoids direct welding of heat exchange tubes of different materials on the heat exchange shell, effectively improving the pressure resistance of the product.

[0017] 2) The built-in integrated tube assembly of this structure effectively increases the effective utilization section of the heat exchange tubes and improves the heat exchange capacity of the heat exchanger compared with the existing heat exchangers.

[0018] 3) The built-in integrated tube assembly with this structure eliminates the need for exposed heat exchange tubes compared to existing heat exchangers, effectively reducing product manufacturing costs. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0020] Appendix Figure 2 This is a front view of a preferred embodiment of the present invention.

[0021] Appendix Figure 3 This is a top view of a preferred embodiment of the present invention (with the partial heat exchange shell removed).

[0022] Appendix Figure 4 This is a partial cross-sectional view of a preferred embodiment of the present invention. Detailed Implementation

[0023] The present invention will now be further described with reference to the accompanying drawings.

[0024] According to the appendix Figures 1 to 4 As shown, the built-in high-efficiency heat exchanger of this utility model includes a heat exchange shell 1 for storing refrigerant and a heat exchange tube 2 for the flow and heat exchange of the medium. The heat exchange shell 1 is provided with a heat exchange inner cavity 11, and the heat exchange tube 2 is installed in the heat exchange inner cavity 11. The heat exchange shell 1 is provided with a built-in integrated tube assembly, which includes an integrated liquid inlet pipe 3 and an integrated liquid outlet pipe 4. The inner connecting ends of the integrated liquid inlet pipe 3 and the integrated liquid outlet pipe 4 are respectively connected to the heat exchange shell 1 and extend to the heat exchange inner cavity 11. The liquid inlet end and the liquid outlet end of the heat exchange tube 2 are respectively integrated and connected to the integrated liquid inlet pipe 3 and the integrated liquid outlet pipe 4.

[0025] In practical applications, the integrated liquid inlet pipe 3 and integrated liquid outlet pipe 4 of the built-in integrated pipe assembly of this structure are made of the same material as the heat exchange shell 1 and can be integrally formed, or can be connected to the heat exchange shell 1 by welding, snap-fitting, sealing connection or other methods.

[0026] In this way, the built-in integrated tube assembly with this structure effectively avoids direct welding of heat exchange tubes 2 of different materials to the heat exchange shell 1, effectively improving the product's pressure resistance.

[0027] Reference Figures 1 to 4 As shown in the figure, further detailed, the heat exchange inner cavity 11 is connected to a refrigerant inlet pipe 6 and a refrigerant outlet pipe 7, and the refrigerant outlet pipe and the refrigerant inlet pipe 6 are diagonally distributed on the heat exchange outer shell 1.

[0028] Furthermore, the heat exchange inner cavity 11 is equipped with at least one spirally arranged heat exchange tube 2, and the liquid inlet end and liquid outlet end of the heat exchange tube 2 are respectively welded to the inner connection end of the integrated liquid inlet tube 3 and the integrated liquid outlet tube 4.

[0029] Alternatively, the heat exchange cavity 11 is equipped with at least one spirally arranged heat exchange tube 2, and the inlet end and outlet end of the heat exchange tube 2 are respectively threaded to the inner connection end of the integrated inlet tube 3 and the integrated outlet tube 4.

[0030] Alternatively, the heat exchange cavity 11 is equipped with at least one spirally arranged heat exchange tube 2, and the inlet and outlet ends of the heat exchange tube 2 are respectively connected to the inner connection ends of the integrated inlet tube 3 and the integrated outlet tube 4 by snap-fit.

[0031] In practical applications, one or two spiral heat exchange tubes 2 can be integrated into the heat exchange cavity 11. Compared with existing heat exchangers, this structure effectively increases the effective utilization section of the heat exchange tubes 2, thereby improving the heat exchange capacity of the heat exchanger. At the same time, eliminating the exposed heat exchange tubes 2 effectively reduces product manufacturing costs.

[0032] The above specific embodiments are only specific implementations of the present utility model with better effects. All structures that are the same as or equivalent to the built-in high-efficiency heat exchanger of the present utility model are within the protection scope of the present utility model.

Claims

1. A built-in high-efficiency heat exchanger, comprising a heat exchange shell (1) for storing refrigerant and heat exchange tubes (2) for heat exchange of the medium, wherein the heat exchange shell (1) is provided with a heat exchange cavity (11), and the heat exchange tubes (2) are installed in the heat exchange cavity (11), characterized in that: The heat exchange shell (1) is provided with a built-in integrated tube assembly, which includes an integrated liquid inlet pipe (3) and an integrated liquid outlet pipe (4). The inner connection ends of the integrated liquid inlet pipe (3) and the integrated liquid outlet pipe (4) are respectively connected to the heat exchange shell (1) and extend to the heat exchange inner cavity (11). The liquid inlet end and the liquid outlet end of the heat exchange tube (2) are respectively integrated and connected to the integrated liquid inlet pipe (3) and the integrated liquid outlet pipe (4).

2. The built-in high-efficiency heat exchanger according to claim 1, characterized in that: The heat exchange cavity (11) is equipped with at least one spirally arranged heat exchange tube (2), and the liquid inlet end and liquid outlet end of the heat exchange tube (2) are respectively welded to the inner connection end of the integrated liquid inlet tube (3) and the integrated liquid outlet tube (4).

3. The built-in high-efficiency heat exchanger according to claim 1, characterized in that: The heat exchange cavity (11) is equipped with at least one spirally arranged heat exchange tube (2), and the inlet end and outlet end of the heat exchange tube (2) are respectively connected to the inner connection end of the integrated inlet tube (3) and the integrated outlet tube (4) by thread.

4. The built-in high-efficiency heat exchanger according to claim 1, characterized in that: The heat exchange inner cavity (11) is equipped with at least one spirally arranged heat exchange tube (2), and the liquid inlet end and liquid outlet end of the heat exchange tube (2) are respectively connected to the inner connection end of the integrated liquid inlet tube (3) and the integrated liquid outlet tube (4) by snap-fit.

5. The built-in high-efficiency heat exchanger according to claim 1, characterized in that: The integrated liquid inlet pipe (3) and integrated liquid outlet pipe (4) are diagonally distributed on the heat exchange shell (1), and the integrated liquid inlet pipe (3) and integrated liquid outlet pipe (4) of the heat exchange shell (1) have external connecting ends extending outside the heat exchange shell (1). The external connecting ends of the integrated liquid inlet pipe (3) and integrated liquid outlet pipe (4) of the heat exchange shell (1) are respectively provided with external threaded parts (5) that connect to the external liquid inlet pipe and the external liquid outlet pipe.

6. The built-in high-efficiency heat exchanger according to claim 1, characterized in that: The heat exchange inner cavity (11) is connected to a refrigerant inlet pipe (6) and a refrigerant outlet pipe (7). The refrigerant outlet pipe and the refrigerant inlet pipe (6) are diagonally distributed on the heat exchange outer shell (1).

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