Detachable liquid cooling heat exchanger and air conditioner, air energy heat pump water heater, freezing and refrigerating device and air compressor applying same

Abstract

The utility model relates to a detachable liquid cooling heat exchanger and an air conditioner, an air energy heat pump water heater, a freezing and refrigerating device and an air compressor applying the detachable liquid cooling heat exchanger. The detachable liquid cooling heat exchanger comprises an upper shell, an upper sealing gasket, a heat pump working medium heat exchange inner pipe, a lower sealing gasket, a lower shell and a detachable fastening device. According to the detachable liquid cooling heat exchanger, after the scheme that a heat pump working medium flows in a heat pump working medium heat exchange inner pipe and cooling liquid flows in an annular space between the pipes is adopted, the low-pressure cooling liquid between the pipes can enable an outer pipe to use a detachable upper shell and a detachable lower shell with sealing surfaces, and the detachable outer pipe is formed by sealing the outer pipe through an upper sealing gasket and a lower sealing gasket and fixing the outer pipe through a detachable fastening device. By means of the structural design, the upper shell and the lower shell can be integrally formed in a die-casting mode, batch production cost is low, manufacturing is easy, dismounting and mounting are convenient, scale impurities are easy to clean, heat exchange efficiency is guaranteed, hot water can be recycled, energy consumption is reduced, and meanwhile use cost is reduced.

Description

Technical Field

[0001] The utility model relates to a liquid-cooled heat exchanger, in particular to a double-pipe liquid-cooled heat exchanger. Background Art

[0002] Existing double-pipe liquid-cooled heat exchangers are composed of an inner metal pipe and an outer metal pipe which are sleeved. The coolant flows in the inner pipe, and the heat pump working medium flows in the annular space between the pipes. Due to the high working pressure of the heat pump working medium, the thickness requirements for the two pipes are high. In a direct-heating air-source heat pump water heater, the heat exchange pipes are long, the volume of the double-pipe liquid-cooled heat exchanger is large, the manufacturing requirements are high, and the cost is high. After the double-pipe liquid-cooled heat exchanger operates for a period of time, it is not easy to clean the scale, which affects the heat exchange efficiency. Summary of the Invention

[0003] To solve the above problems, the utility model provides a detachable liquid-cooled heat exchanger with low cost, easy scale cleaning and good heat exchange effect.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A detachable liquid-cooled heat exchanger, comprising: an upper housing, an upper gasket, a heat pump working medium heat exchange inner pipe, a lower gasket, a lower housing, and a detachable fastening device;

[0006] The heat pump working medium heat exchange inner pipe is arranged in a detachable outer pipe formed by sealing the upper housing and the lower housing with the upper gasket and the lower gasket and fixing with the detachable fastening device;

[0007] The detachable outer pipe formed by sealing the upper housing and the lower housing with the upper gasket and the lower gasket and fixing with the detachable fastening device and the annular space between the pipes sealed at both ends of the inlet and outlet of the heat pump working medium heat exchange inner pipe is a coolant heat exchange space, and a coolant outlet pipe and a coolant inlet pipe are respectively led out at both ends.

[0008] Further, in the above detachable liquid-cooled heat exchanger, the upper housing and the lower housing are both provided with a semi-circular arc-shaped pipe groove with a diameter larger than that of the heat pump working medium heat exchange inner pipe and matching the bending shape of the heat pump working medium heat exchange inner pipe, and sealing planes are arranged on both sides of the axis of the semi-circular arc-shaped pipe groove, and fixing holes of the detachable fastening device are arranged on the planes; the upper gasket and the lower gasket include a plane section matching the shape of the sealing planes of the upper housing and the lower housing and an arc section sealing both ends of the circular pipe groove formed by the upper housing and the lower housing and the inlet and outlet of the heat pump working medium heat exchange inner pipe.

[0009] The second aspect of the present application also provides an air conditioner applying the detachable liquid-cooled heat exchanger described in any one of the above.

[0010] The third aspect of the present application further provides an air-source heat pump water heater, which employs the detachable liquid-cooled heat exchanger described in any one of the above.

[0011] The fourth aspect of the present application further provides a refrigeration and freezing device, which employs the detachable liquid-cooled heat exchanger described in any one of the above.

[0012] The fifth aspect of the present application further provides an air compressor, which employs the detachable liquid-cooled heat exchanger described in any one of the above.

[0013] The beneficial effects of the present utility model are as follows: The heat pump working medium with high pressure only flows in the inner tube of the heat pump working medium heat exchanger, which can greatly reduce the requirements for the housing. As a result, thinner metal materials can be used for the upper and lower housings, and plastic materials used in existing water pipes can also be employed, saving the use of metal. When the bending shape and size of the inner tube of the heat pump working medium heat exchanger are standardized, corresponding molds can be made for the upper housing, lower housing, upper gasket, and lower gasket according to the bending shape of the inner tube of the heat pump working medium heat exchanger, and an integrated component can be die-cast. The batch production cost is low, the manufacturing is simple, the disassembly and assembly are convenient, and the scale and impurities are easy to clean, ensuring the heat exchange efficiency and reducing energy consumption. When the inner tube of the heat pump working medium heat exchanger is an integral metal tube, the leakage of the heat pump working medium caused by the corrosion of the welding point can be eliminated. The liquid-cooled heat exchanger has a low cost and simple manufacturing, enabling the equipment using the liquid-cooled heat exchanger to adopt long-flow countercurrent heat exchange. When the outlet temperature of the coolant is high, the condensation temperature is still very low, maintaining the high energy efficiency ratio of the heat pump, reducing the use of the coolant, and having obvious energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an exploded view of the structure of the serpentine embodiment of the detachable liquid-cooled heat exchanger of the present utility model;

[0015] Figure 2 is a front view of the serpentine embodiment of the detachable liquid-cooled heat exchanger of the present utility model;

[0016] Figure 3 is a top view of the serpentine embodiment of the detachable liquid-cooled heat exchanger of the present utility model after removing the upper housing and the upper gasket;

[0017] Figure 4 is a top view of the serpentine embodiment of the detachable liquid-cooled heat exchanger of the present utility model after rotating the coolant inlet and outlet pipes to the sealing surface and removing the upper housing and the upper gasket;

[0018] Figure 5 is an exploded view of the structure of the double-vortex linear embodiment of the detachable liquid-cooled heat exchanger of the present utility model;

[0019] Figure 6 is a front view of the double-vortex linear embodiment of the detachable liquid-cooled heat exchanger of the present utility model;

[0020] Figure 7 It is a top view after disassembling the upper shell and upper gasket of the double-vortex linear embodiment of the detachable liquid-cooled heat exchanger of the present utility model;

[0021] Figure 8 It is an exploded view of the structure of the straight-tube embodiment of the detachable liquid-cooled heat exchanger of the present utility model;

[0022] Figure 9 It is a front view of the straight-tube embodiment of the detachable liquid-cooled heat exchanger of the present utility model;

[0023] Figure 10 It is a top view after disassembling the upper shell and upper gasket of the straight-tube embodiment of the detachable liquid-cooled heat exchanger of the present utility model;

[0024] Figure 11 It is a structural schematic diagram of the constant temperature control of the detachable liquid-cooled heat exchanger of the present utility model;

[0025] Figure 12 It is the first embodiment of the detachable liquid-cooled heat exchanger of the present utility model in application;

[0026] Figure 13 It is the second embodiment of the detachable liquid-cooled heat exchanger of the present utility model in application;

[0027] Figure 14 It is the third embodiment of the detachable liquid-cooled heat exchanger of the present utility model in application;

[0028] Among them, 21, upper shell; 22, upper gasket; 23, heat exchange inner tube for heat pump working medium; 24, lower gasket; 25, lower shell; 26, detachable fastening device; 27, coolant outlet pipe; 28, coolant inlet pipe; 29, coolant heat exchange space; 31, coolant outlet temperature sensor; 32, heat pump working medium outlet temperature sensor; 33, data processing system; 1, compressor; 2, detachable liquid-cooled heat exchanger; 3, throttling device; 4, evaporator; 5, air-cooled or direct-cooled condenser; 01, high-temperature liquid tank; 02, normal-temperature liquid tank; 03, medium-temperature liquid tank; 001, variable flow device; 002, secondary variable flow device; Detailed implementation manners

[0029] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In order to more clearly understand the technical solution of the present utility model, the principle of the present utility model is described below:

[0033] Similar to the existing tube-in-tube liquid-cooled heat exchanger, it is composed of two tubes, an inner tube and an outer tube, sleeved together. The difference is that in the present utility model, the heat pump working medium is adjusted to flow in the inner tube from the annular space between the tubes, and the coolant is adjusted to flow in the annular space between the tubes from the inner tube. In this way, the heat pump working medium with high pressure only flows in the inner tube for heat pump working medium heat exchange, and the low-pressure coolant can greatly reduce the requirements for the outer tube, so that the detachable outer pipeline formed by using the upper shell body and the lower shell body with sealing surfaces, sealed with upper and lower gaskets and fixed with detachable fastening devices can be used, as shown in the straight tube-shaped embodiment in Attachment Figure 8 、 9 、10. Due to the volume size limitations of most equipment, the pipeline must be bent. For example, the existing tube-in-tube liquid-cooled heat exchanger uses a spiral shape. For the convenience of disassembly, sealing, fastening and production, the semi-circular tube grooves of the upper shell body and the lower shell body must be bent along the sealing surfaces of the upper shell body and the lower shell body. After bending, the adjacent shell sealing surfaces are connected together to form an integrally moldable component with the semi-circular tube grooves, as shown in Attachment Figure 1 to Attachment Figure 7The serpentine and double-vortex linear embodiments shown; in order to ensure that there is no leakage of the coolant between the detachable outer pipe formed by the upper shell and the lower shell and the heat exchange inner pipe of the heat pump working medium, an upper gasket and a lower gasket are provided, including a flat section matching the shape of the sealing planes of the upper shell and the lower shell and an arc section for sealing both ends of the inlet and outlet of the detachable outer pipe formed by the upper shell and the lower shell and the heat exchange inner pipe of the heat pump working medium. The flat section is used for sealing between the upper and lower shells and the adjacent pipe grooves, so that the inner and outer pipes are kept sleeved, and the coolant does not leak or short-circuit; the arc section is used for sealing between the two ends of the heat exchange inner pipe of the heat pump working medium and the upper and lower shells, so that there is no leakage in the coolant heat exchange space; the upper gasket and the lower gasket can be a whole piece, or can be divided into several pieces, or the flat sections of the upper and lower gaskets can be designed as a whole, but the premise is to ensure sealing. Of course, the flat section can be provided with fixing holes for detachable fastening devices consistent with the upper shell and the lower shell to position the upper gasket and the lower gasket, or grooves can be designed on the entire sealing surface of the upper and lower shells, and the gasket is provided with convex ribs that are interference-fitted or inlaid with the sealing surface grooves of the upper and lower shells to fix the upper gasket and the lower gasket; the coolant inlet and outlet pipes can be all arranged on the upper or lower shell as required, or can be respectively arranged on the upper and lower shells, or on the sealing planes of the upper and lower shells, close to the arc section of the gasket, but cannot be blocked by it; the detachable fastening device is used to tightly close the upper shell, the upper gasket, the heat exchange inner pipe of the heat pump working medium, the lower gasket, and the lower shell to prevent coolant leakage, and it can be a bolt or other detachable fastening devices such as a buckle; generally, the heat exchange inner pipe of the heat pump working medium does not need to be supported inside the detachable outer pipe formed by sealing the upper shell and the lower shell with the upper gasket and the lower gasket and fixing with the detachable fastening device. If the equipment has special reasons such as large vibration and needs support, a rubber pad with a porous semi-circular pipe clamp around it can be selected, or ribs with an axial or continuous spiral can be designed in the semi-circular arc-shaped pipe grooves of the upper and lower shells or outside the heat exchange inner pipe of the heat pump working medium; the outer pipe composed of the heat exchange inner pipe of the heat pump working medium and the upper and lower shells can also be made into a pipe with a square, oval or other shapes according to needs. Embodiment 1

[0034] Refer to the appendix Figure 1 、 2 、3, including: upper shell 21, upper gasket 22, heat exchange inner pipe 23 of heat pump working medium, lower gasket 24, lower shell 25, detachable fastening device 26;

[0035] The heat exchange inner pipe 23 of the heat pump working medium is arranged inside the detachable outer pipe formed by sealing the upper shell 21 and the lower shell 25 with the upper gasket 22 and the lower gasket 24 and fixing with the detachable fastening device 26;

[0036] The upper housing 21 and the lower housing 25 are sealed with an upper gasket 22 and a lower gasket 24 and fixed with a detachable fastening device 26 to form a detachable outer pipe. The annular space between the pipes sealed at both ends of the inlet and outlet of the heat exchange inner pipe 23 for the heat pump working medium is a coolant heat exchange space 29, and a coolant outlet pipe 27 and a coolant inlet pipe 28 are respectively led out at both ends;

[0037] In this embodiment, the heat exchange inner pipe 23 for the heat pump working medium is bent into a snake shape, and the upper housing 21 and the lower housing 25 are correspondingly made into semi-circular arc-shaped pipe grooves with a diameter larger than that of the heat exchange inner pipe 23 for the heat pump working medium and matching the snake shape bent by the heat exchange inner pipe 23 for the heat pump working medium; Sealing planes are arranged on both sides of the axis of the semi-circular arc-shaped pipe groove, and fixing holes for the detachable fastening device 26 are arranged on the planes; The upper gasket 22 and the lower gasket 24 of this embodiment include a plane section matching the shape of the sealing planes of the upper housing 21 and the lower housing 25 and an arc section for sealing both ends of the inlet and outlet of the circular pipe groove formed by the upper housing 21 and the lower housing 25 and the heat exchange inner pipe 23 for the heat pump working medium. They are integrally formed, and fixing holes of the detachable fastening device 26 consistent with those of the upper housing 21 and the lower housing 25 are arranged on the plane section. The coolant inlet and outlet pipes are respectively arranged on the upper and lower housings.

[0038] To more clearly illustrate the technical solution of the present invention, refer to the attached Figure 4 , rotate the coolant inlet and outlet pipes to the sealing surface so that all pipes are in one plane, and more intuitively illustrate the working process of the present invention:

[0039] The heat exchange inner pipe 23 of the detachable liquid-cooled heat exchanger is used to pass the heat pump working medium; The annular coolant heat exchange space 29 between the detachable outer pipe formed by sealing the upper housing 21 and the lower housing 25 with the upper gasket 22 and the lower gasket 24 and fixing with the detachable fastening device 26 and sealed at both ends of the heat exchange inner pipe 23 for the heat pump working medium is used to pass the coolant; The high-temperature and high-pressure heat pump working medium gas coming out of the compressor enters the heat exchange inner pipe 23 for the heat pump working medium, and after heat exchange with the coolant in the annular coolant heat exchange space 29 between the detachable outer pipe formed by sealing the upper housing 21 and the lower housing 25 with the upper gasket 22 and the lower gasket 24 and fixing with the detachable fastening device 26 and sealed at both ends of the inlet and outlet of the heat exchange inner pipe 23 for the heat pump working medium by using the heat conduction of the metal pipe, it becomes a high-pressure and medium-temperature subcooled liquid and flows out of the detachable liquid-cooled heat exchanger; The low-temperature coolant enters the coolant heat exchange space 29 from the coolant inlet pipe 28 of the detachable liquid-cooled heat exchanger, and after obtaining the heat of the high-temperature and high-pressure heat pump working medium, it becomes a high-temperature coolant and flows out through the coolant outlet pipe 27 of the detachable liquid-cooled heat exchanger to complete the heat exchange between each other.

[0040] To simply and intuitively express the embodiment, the attached Figure 1 、 2, 3 uses a short - process solution. In actual production, the heat - pump working medium heat - exchange inner tube 23 in the detachable liquid - cooled heat exchanger bends a sufficiently long whole metal tube into a standard snake shape according to the heat - exchange capacity of the equipment. The upper shell 21 and the lower shell 25 are integrally die - cast after making semi - circular arc - shaped tube grooves that are larger than the heat - pump working medium heat - exchange inner tube 23 according to the snake shape of the heat - pump working medium heat - exchange inner tube 23, and there are die - casting molds with sealing planes on both sides of the axis of the semi - circular arc - shaped tube grooves. Similarly, the upper gasket 22 and the lower gasket 24 are also die - cast after making corresponding molds. The fixed holes of the coolant inlet pipe 28, the coolant outlet pipe 27, and the detachable fastening device 26 on the plane can be set on the mold or drilled and tapped after die - casting. During assembly, the heat - pump working medium heat - exchange inner tube 23 is generally first connected to the equipment, then the lower gasket 24 is fixed on the lower shell 25, the upper gasket 22 is fixed on the upper shell 21, the heat - pump working medium heat - exchange inner tube 23 is clamped in the middle. After ensuring the matching of the bent shape, the fixed holes of the detachable fastening device 26 on the lower shell 25 and the upper shell 21 are aligned and fixed with the detachable fastening device 26. The disassembly steps are the opposite, which is very simple. Embodiment 2

[0041] Refer to the appendix Figure 5 , 6 , 7, in this embodiment, the heat - pump working medium heat - exchange inner tube 23 is bent into a double - vortex linear shape, and the upper shell 21 and the lower shell 25 also correspondingly make semi - circular arc - shaped tube grooves with a diameter larger than that of the heat - pump working medium heat - exchange inner tube 23 and matching the double - vortex linear shape bent by the heat - pump working medium heat - exchange inner tube 23. There are sealing planes on both sides of the axis of the semi - circular arc - shaped tube grooves, and there are fixed holes for the detachable fastening device 26 on the plane. The upper gasket 22 and the lower gasket 24 in this embodiment include a plane section matching the shape of the sealing planes of the upper shell 21 and the lower shell 25 and an arc section at the inlet and outlet of the heat - pump working medium heat - exchange inner tube 23. They are integrally formed and have detachable fastening device 26 fixed holes consistent with those of the upper shell 21 and the lower shell 25 on the plane section. Its working principle in actual production is the same as that of the snake - shaped embodiment.

[0042] Appendix Figure 8 , 9 , 10 are straight - tube - shaped embodiments where the heat - exchange inner tube is not bent. They are very simple, and their working principle in actual production is the same as that of the snake - shaped embodiment, so they will not be described again. Of course, the detachable liquid - cooled heat exchanger can be made into disk - shaped embodiments such as ellipses, rectangles with rounded corners according to the needs of the equipment, or embodiments with a slight height difference between the inner and outer circles. In actual applications, multiple detachable liquid - cooled heat exchangers can be connected in series or parallel to meet the requirements of multiple temperatures, large flow rates, and small spaces.

[0043] In summary, compared with the prior art, through the above structural design, the high-pressure heat pump working medium only flows in the inner tube of the heat pump working medium heat exchanger, which can greatly reduce the requirements for the housing. As a result, thinner metal materials can be used for the upper and lower housings, and plastic materials used in existing water pipes can also be used, saving the use of metal. When the bending shape and size of the inner tube of the heat pump working medium heat exchanger are unified, molds can be made according to the bending shape of the inner tube of the heat pump working medium for the upper housing, lower housing, upper gasket, and lower gasket, and an integrated component can be die-cast. The batch production cost is low, the manufacturing is simple, the disassembly and assembly are convenient, and the scale and impurities are easy to clean, ensuring the heat exchange efficiency and reducing energy consumption. When the inner tube of the heat pump working medium heat exchanger is a whole metal tube, the leakage of the heat pump working medium caused by the corrosion of the welding point can be eliminated. The liquid-cooled heat exchanger has a low cost and is simple to manufacture, allowing the equipment using the liquid-cooled heat exchanger to adopt a long-flow countercurrent heat exchange. When the outlet temperature of the coolant is high, the condensation temperature is still very low, maintaining the high energy efficiency ratio of the heat pump, reducing the use of the coolant, and the energy-saving effect is obvious.

[0044] In practical applications, when the inlet temperature and load of the coolant change, it is necessary to keep the outlet temperature constant, avoid the influence of the high inlet temperature of the coolant in summer on the condensation temperature and energy consumption, reduce the amount of coolant used in winter, and save energy. Generally, a coolant outlet temperature sensor 31 installed on the pipe wall of the coolant outlet pipe 27, a heat pump working medium outlet temperature sensor 32 installed on the pipe wall of the outlet end of the inner tube 23 of the heat pump working medium, a variable flow device 001 installed at the inlet end of the coolant inlet pipe 28, and a data processing system 33 are added to the detachable liquid-cooled heat exchanger. Refer to the appendix Figure 11 (In order to illustrate the embodiment intuitively, the coolant inlet and outlet pipes are also rotated to the sealing surface so that all pipes are in one plane); the data processing system 33 is connected to the coolant outlet temperature sensor 31, the heat pump working medium outlet temperature sensor 32, and the variable flow device 001 through wires, and real-time detects the outlet temperatures of the coolant and the heat pump working medium, and compares with the set temperatures to adjust the variable flow device 001 to increase or decrease the coolant flow to meet the outlet temperatures of the coolant and the heat pump working medium.

[0045] The detachable liquid-cooled heat exchanger can be widely used in equipment with condensers, mainly divided into two types. One type of detachable liquid-cooled heat exchanger replaces the condenser of the existing equipment, with the advantages of low cost, easy cleaning of scale and impurities, high heat exchange efficiency, ability to recover hot water and reduce energy consumption, and low usage cost. The other type is to add a group of detachable liquid-cooled heat exchangers in front of the existing air-cooled or direct-cooled condenser to meet the usage requirements in specific environments; of course, there are also some detachable liquid-cooled heat exchangers stacked and combined to meet the requirements of high energy efficiency and multi-temperature output of the equipment. The following will make a detailed description of the above applications for some of the used equipment.

[0046] The second aspect of the present application further provides an air conditioner that applies the detachable liquid-cooled heat exchanger described in any one of the above.

[0047] In at least one embodiment of the air conditioner of the present application, referring to the attached Figure 12 , the air conditioner includes a compressor 1, a detachable liquid-cooled heat exchanger 2, a throttling device 3, and an evaporator 4. Different from a conventional air conditioner, the condenser is replaced by the detachable liquid-cooled heat exchanger 2, so that the air conditioner has the advantages of low cost of the detachable liquid-cooled heat exchanger, easy cleaning of scale and impurities, high heat exchange efficiency, ability to recover hot water to reduce energy consumption, and reduced usage cost.

[0048] The third aspect of the present application further provides an air source heat pump water heater that applies the detachable liquid-cooled heat exchanger described in any one of the above.

[0049] In at least one embodiment of the air source heat pump water heater of the present application, referring to the attached Figure 13 (For the sake of intuitively illustrating the embodiment, the coolant inlet and outlet pipes are also rotated to the sealing surface so that all pipes are in one plane, and the data processing system has been omitted), the air source heat pump water heater includes a compressor 1, two groups of detachable liquid-cooled heat exchangers 2, a throttling device 3, an evaporator 4, a high-temperature liquid tank 01, a normal-temperature liquid tank 02, a medium-temperature liquid tank 03, a coolant outlet temperature sensor 31, a heat pump working medium outlet temperature sensor 32, a variable flow device 001, and a secondary variable flow device 002. Different from a conventional air source heat pump water heater, two groups of detachable liquid-cooled heat exchangers 2 are connected in series to replace its condenser, so that hot water at two water temperatures can be obtained. At the same time, the medium-temperature liquid tank 03 can be used to make the first group of detachable liquid-cooled heat exchangers focus on reducing the condensation temperature and reducing energy consumption, and the second group of detachable liquid-cooled heat exchangers focus on the temperature of high-temperature water, increasing the adjustment range of the condensation temperature and the outlet water temperature of a single detachable liquid-cooled heat exchanger, and truly realizing low energy consumption when super-high-temperature water is discharged.

[0050] The fourth aspect of the present application further provides a freezing and refrigerating device that applies the detachable liquid-cooled heat exchanger described in any one of the above.

[0051] In at least one embodiment of the freezing and refrigerating device of the present application, referring to the attached Figure 14 , it includes a compressor 1, a detachable liquid-cooled heat exchanger 2, a throttling device 3, an evaporator 4, and an air-cooled or direct-cooled condenser 5. Different from a conventional freezing and refrigerating device, a detachable liquid-cooled heat exchanger 2 is added between the original compressor and the condenser. In some places where water supply is often interrupted, hot water is produced by the detachable liquid-cooled heat exchanger 2 when there is water, reducing the usage of the water heater and saving energy; when there is no water, heat dissipation is carried out through the original air-cooled or direct-cooled condenser 5, which is very practical.

[0052] The fifth aspect of the present application further provides an air compressor, which applies the detachable liquid-cooled heat exchanger described in any one of the above.

[0053] In at least one embodiment of the air compressor of the present application, the condenser of a common air compressor is replaced by a detachable liquid-cooled heat exchanger 2, so that the air compressor has the advantages of low cost of the detachable liquid-cooled heat exchanger, easy cleaning of scale and impurities, high heat transfer efficiency, ability to recover hot water to reduce energy consumption, and reduction of usage cost.

[0054] It should be noted that the above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detachable liquid-cooled heat exchanger, characterized in that Comprising: an upper housing (21), an upper gasket (22), a heat pump refrigerant heat exchange inner tube (23), a lower gasket (24), a lower housing (25), and a detachable fastening device (26); The heat pump refrigerant heat exchange inner tube (23) is disposed within a detachable outer tube formed by sealing the upper housing (21) and the lower housing (25) with the upper gasket (22) and the lower gasket (24) and fixing them with the detachable fastening device (26); The detachable outer tube formed by sealing the upper housing (21) and the lower housing (25) with the upper gasket (22) and the lower gasket (24) and fixing them with the detachable fastening device (26) and the annular space between the tubes sealed at both ends of the inlet and outlet of the heat pump refrigerant heat exchange inner tube (23) is a coolant heat exchange space (29), and a coolant outlet pipe (27) and a coolant inlet pipe (28) are respectively led out at both ends.

2. The detachable liquid-cooled heat exchanger according to claim 1, wherein: Both the upper housing (21) and the lower housing (25) are provided with a semi-circular arc-shaped tube groove having a diameter larger than that of the heat pump refrigerant heat exchange inner tube (23) and matching the bending shape of the heat pump refrigerant heat exchange inner tube (23), and sealing planes are provided on both sides of the axis of the semi-circular arc-shaped tube groove, and fixing holes for the detachable fastening device (26) are provided on the planes; The upper gasket (22) and the lower gasket (24) include a planar section matching the shape of the sealing planes of the upper housing (21) and the lower housing (25) and an arc-shaped section for sealing both ends of the circular tube groove formed by the upper housing (21) and the lower housing (25) at the inlet and outlet of the heat pump refrigerant heat exchange inner tube (23).

3. An air conditioner, characterized in that: Comprising the detachable liquid-cooled heat exchanger according to any one of claims 1-2.

4. An air source heat pump water heater, characterized in that: Comprising the detachable liquid-cooled heat exchanger according to any one of claims 1-2.

5. A refrigeration and freezing device, characterized in that: Comprising the detachable liquid-cooled heat exchanger according to any one of claims 1-2.

6. An air compressor, characterized in that: Comprising the detachable liquid-cooled heat exchanger according to any one of claims 1-2.

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