Split detachable heat exchanger

Abstract

The utility model relates to the technical field of single crystal furnaces, in particular to a split detachable heat exchanger which comprises a heat exchanger body, the heat exchanger body comprises a fixing part and a replacement part located on the lower side of the fixing part, the fixing part is detachably connected with the replacement part, the fixing part is provided with a first heat exchange cavity, and the replacement part is provided with a second heat exchange cavity. The replacement part is provided with a second heat exchange cavity and further comprises a first cooling water pipe communicated with the first heat exchange cavity and a second cooling water pipe communicated with the second heat exchange cavity. According to the split detachable heat exchanger, only the replacement part which is located at the bottom and prone to damage needs to be replaced, and the fixing part does not need to be replaced. According to the utility model, not only is the replacement cost reduced, but also the production efficiency is greatly improved. The first cooling water pipe is communicated with the first heat exchange cavity, the second cooling water pipe is communicated with the second heat exchange cavity, replacement operation can be carried out under the condition that cooling water flow is not interrupted, replacement time is further shortened, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal furnaces, in particular to a split and detachable heat exchanger. Background Art

[0002] In recent years, photovoltaic power generation, as a green energy and a major energy source for sustainable human development, has been increasingly valued and developed by countries around the world. As a basic material for photovoltaic power generation, single crystal silicon wafers have a wide market demand. Single crystal silicon wafers are usually obtained by slicing single crystal silicon rods, which can be grown and pulled from silicon liquid. The Czochralski method, also known as the Czochralski method (abbreviated as CZ method), is an important method for manufacturing single crystal silicon. When growing silicon single crystals by the Czochralski method, in order to increase the crystal growth rate, single crystal furnace auxiliary equipment, such as heat exchangers, are usually set in the furnace body. It is suitable for scenes that require large-area heat dissipation, such as large-scale single crystal growth furnaces. The heat exchanger mainly exchanges heat between the high-temperature furnace air and the external cooling medium through conduction and convection heat transfer, thereby reducing the temperature in the furnace. Heat exchangers are usually made of metal or ceramic materials and have good thermal conductivity and strong heat dissipation capabilities. They can absorb the heat in the furnace through external cooling water, cooling gas, etc. and take it away.

[0003] For example, a heat exchanger with a new water channel structure disclosed in Chinese patent document CN217636924U includes an inner shell and an outer shell, a heat exchange space is provided between the inner shell and the outer shell, a coolant inlet communicating with the heat exchange space and a coolant outlet communicating with the heat exchange space are provided on the inner shell, a plurality of partitions are provided on the heat exchange space, a plurality of the partitions divide the heat exchange space to form a plurality of heat exchange channels connected in sequence, a plurality of the partitions are arranged at intervals along the axial direction of the inner shell, and a plurality of heat sinks are arranged at intervals along the axial direction of the inner shell in the heat exchange space. Since the heat exchanger is used in a high temperature environment, the temperature at the bottom of the heat exchanger is relatively high, which will shorten the life. If the bottom of the heat exchanger needs to be replaced, the entire heat exchanger needs to be replaced at this time, which not only causes high cost of use, but also the complicated replacement process affects production efficiency. Therefore, in view of the above shortcomings, it is necessary to develop a heat exchanger that is easy to replace to improve the replacement efficiency. Utility Model Content

[0004] In view of the technical problem mentioned above that when the bottom of the existing heat exchanger needs to be replaced, the entire heat exchanger needs to be replaced, which not only causes high cost of use, but also the complicated replacement process affects production efficiency. The technical solution adopted by the utility model to solve the technical problem is:

[0005] A split and replaceable heat exchanger includes a heat exchanger body, wherein the heat exchanger body includes a fixing part and a replacement part located at the lower side of the fixing part, wherein the fixing part and the replacement part are detachably connected, the fixing part is provided with a first heat exchange chamber, the replacement part is provided with a second heat exchange chamber, and further includes a first cooling water pipe connected to the first heat exchange chamber, and a second cooling water pipe connected to the second heat exchange chamber.

[0006] Furthermore, in some embodiments of the utility model, the first cooling water pipe is provided with a first cooling water pipe inlet and a first cooling water pipe outlet respectively connected to the first heat exchange chamber, and the second cooling water pipe is provided with a second cooling water pipe inlet and a second cooling water pipe outlet respectively connected to the second heat exchange chamber.

[0007] Furthermore, in some embodiments of the present invention, the replacement part is provided with a connecting portion, and the fixing part is provided with a matching portion that is matched and fixed with the connecting portion.

[0008] Furthermore, in some embodiments of the present invention, the matching portion is a fixing groove located on a side wall of the fixing member, and the connecting portion extends upward and can be engaged in the fixing groove.

[0009] Furthermore, in some embodiments of the utility model, the connecting portion is a trapezoidal prism extending from bottom to top and tilted outward, the fixing groove is similar in shape to the connecting portion, the connecting portion is provided with a connecting portion inclined surface facing outward, and the fixing groove is provided with a fixing groove inclined surface abutting against the connecting portion inclined surface.

[0010] Furthermore, in some embodiments of the present invention, the second cooling water pipe and the connecting portion are fixedly connected, and the fixing groove allows the second cooling water pipe to pass through.

[0011] Furthermore, in some embodiments of the utility model, the first cooling water pipe includes a first inner tube and a first outer tube sleeved on the outside of the first inner tube, the first inner tube is provided with a first inner tube channel, a first outer tube channel is provided between the first outer tube and the first inner tube, the water inlet of the first cooling water pipe is located on the first inner tube channel, and the water outlet of the first cooling water pipe is located on the first outer tube channel.

[0012] Furthermore, in some embodiments of the utility model, the second cooling water pipe includes a second inner tube and a second outer tube sleeved on the outside of the second inner tube, the second inner tube is provided with a second inner tube channel, a second outer tube channel is provided between the second outer tube and the second inner tube, the water inlet of the second cooling water pipe is located on the second inner tube channel, and the water outlet of the second cooling water pipe is located on the second outer tube channel.

[0013] Furthermore, in some embodiments of the present invention, cooling water pipe sleeves are respectively provided on the outer sides of the first cooling water pipe and the second cooling water pipe.

[0014] Furthermore, in some embodiments of the present invention, the bottom outer diameter of the fixing member is close to the top outer diameter of the replacement member.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model uses a split and detachable heat exchanger, so that only the replacement parts at the bottom that are easily damaged can be replaced without replacing the fixed parts. The utility model not only reduces the replacement cost, but also greatly improves the production efficiency. The utility model communicates with the first heat exchange cavity through the first cooling water pipe, and the second cooling water pipe communicates with the second heat exchange cavity, so that the replacement operation can be performed without interrupting the cooling water flow, further reducing the replacement time and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of a split and detachable heat exchanger.

[0018] Figure 2 The utility model is an exploded view of a split and detachable heat exchanger.

[0019] Figure 3 The utility model is a top view of a split and detachable heat exchanger.

[0020] Figure 4 for Figure 3 AA section view.

[0021] Figure 5 for Figure 4 Enlarged view of the second cooling water pipe in part B.

[0022] Figure 6 for Figure 4 Enlarged view of the connection between the fixing and replacement parts of the C section

[0023] Figure 7 for Figure 4 Enlarged view of the connection between the fixing and replacement parts in section D.

[0024] Figure 8 for Figure 4 An enlarged view of the connection between the first cooling water pipe and the first heat exchange cavity in part E. DETAILED DESCRIPTION

[0025] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 7A split and detachable heat exchanger shown includes a heat exchanger body 1, wherein the heat exchanger body 1 includes a fixing part 2, a replacement part 3 located at the lower side of the fixing part 2, wherein the fixing part 2 and the replacement part 3 are detachably connected, wherein the fixing part 2 is provided with a first heat exchange chamber 4, wherein the replacement part 3 is provided with a second heat exchange chamber 5, and further includes a first cooling water pipe 6 connected to the first heat exchange chamber 4, and a second cooling water pipe 7 connected to the second heat exchange chamber 5. The utility model uses a split and detachable heat exchanger to complete the replacement operation while only replacing the damaged replacement part without affecting the operation of other parts. The utility model not only reduces the replacement cost, but also greatly improves the production efficiency. The utility model uses a first cooling water pipe to communicate with the first heat exchange chamber, and a second cooling water pipe to communicate with the second heat exchange chamber, so that the replacement operation can be performed without interrupting the cooling water flow, further reducing the replacement time and improving the production efficiency.

[0027] Specifically, the fixed part is provided with a first heat exchange cavity and connected with a first cooling water pipe, and the replacement part is provided with a second heat exchange cavity and connected with a second cooling water pipe, and cooling water is respectively sent into the first heat exchange cavity and the second heat exchange cavity, thereby realizing the function of water cooling the first heat exchange cavity and the second heat exchange cavity, effectively controlling the temperature of the furnace body, and improving the efficiency and quality of single crystal growth. The non-connected setting of the first heat exchange cavity and the second heat exchange cavity optimizes the heat transfer path, so that the heat can be more evenly distributed on the surface of the fixed part and the replacement part, thereby improving the cooling effect and extending the service life of the fixed part and the replacement part.

[0028] The fixing part is in the shape of an upper cone bucket, and the replacement part is in the shape of a lower cone bucket. Further, as a preferred embodiment of the utility model but not a limitation, the fixing part is in the shape of an upper cone bucket, and the structure of the upper cone bucket is similar to an inverted conical container, which is wider at the top and narrower at the bottom. The replacement part is in the shape of a lower cone bucket, and the structure of the lower cone bucket is a conical container with a wider bottom and a narrower top. The heat exchanger can better realize heat transfer and control the furnace temperature, thereby improving the efficiency and quality of the entire Czochralski method for growing single crystal silicon.

[0029] like Figures 1 to 7 A split and replaceable heat exchanger is shown, wherein the first cooling water pipe 6 is provided with a first cooling water pipe inlet 61 and a first cooling water pipe outlet 62 respectively connected to the first heat exchange chamber 4, and the second cooling water pipe 7 is provided with a second cooling water pipe inlet 71 and a second cooling water pipe outlet 72 respectively connected to the second heat exchange chamber 5. Further, as a preferred embodiment of the utility model but not a limitation, the replaceable heat exchanger realizes the circulation and flow of cooling water, and the cooling water absorbs heat when passing through the first heat exchange chamber or the second heat exchange chamber, and then takes the heat away through the first cooling water pipe outlet or the second cooling water pipe outlet. In this way, the stable operating temperature of the heat exchanger can be maintained, ensuring the constant temperature during the Czochralski method of growing single crystal silicon.

[0030] Specifically, the first cooling water pipe is connected to the first heat exchange chamber, and cooling water is introduced into the first heat exchange chamber through the water inlet of the first cooling water pipe. The cooling water ensures the uniform temperature of the fixed parts and reduces local overheating during the movement of the cooling water in the first heat exchange chamber. The cooling water that has absorbed heat is then discharged through the water outlet of the first cooling water pipe to achieve cooling and control of the heat in the first heat exchange chamber.

[0031] Specifically, the second cooling water pipe is connected to the second heat exchange chamber, and cooling water is introduced into the second heat exchange chamber through the second cooling water pipe inlet. The cooling water ensures the uniform temperature of the replacement part and reduces local overheating during the movement of the cooling water in the second heat exchange chamber. The cooling water that has absorbed heat is then discharged through the second cooling water pipe outlet to achieve cooling and control of the heat in the second heat exchange chamber.

[0032] like Figures 1 to 7 In the split and replaceable heat exchanger shown, the replacement part 3 is provided with a connecting portion 8, and the fixing part 2 is provided with a matching portion that is matched and fixed with the connecting portion 8. Optionally, in some embodiments, the connecting portion and the matching portion can be connected by a snap-fit ​​structure, a mortise and tenon connection, a groove connection, a snap-fit ​​connection, a threaded connection, etc.

[0033] like Figures 1 to 7 A split and replaceable heat exchanger is shown, wherein the matching portion is a fixing groove 9 located on the side wall of the fixing part 2, and the connecting portion 8 extends upward and can be snapped into the fixing groove 9. Furthermore, as a preferred embodiment of the utility model but not a limitation, such an arrangement can achieve the fixation and connection of the fixing part and the replacement part by snapping the upwardly extending connecting portion into the fixing groove. This fixing method can prevent the replacement part from loosening or falling off in a high temperature environment, thereby ensuring the normal operation and service life of the heat exchanger. At the same time, by providing the fixing groove and the connecting portion, the fixing part and the replacement part can be easily disassembled and installed, which is convenient for maintenance and replacement.

[0034] like Figures 1 to 7A split and replaceable heat exchanger is shown, wherein the connecting portion 8 is a trapezoidal prism extending from bottom to top and tilted outward, the fixing groove 9 is similar in shape to the connecting portion 8, the connecting portion 8 is provided with a connecting portion inclined surface 80 facing outward, and the fixing groove 9 is provided with a fixing groove inclined surface 90 abutting against the connecting portion inclined surface 80. Further, as a preferred embodiment of the utility model but not a limitation, such a design enables the connecting portion to achieve stable fit when inserted into the fixing groove. The inclined shape of the trapezoidal prism can provide a better insertion and snap-fit ​​effect, ensuring the firmness and stability of the connection. The fixing groove is similar in shape to the connecting portion, and the connecting portion inclined surface can better fit and abut against the fixing groove inclined surface, which can better withstand thermal expansion and stress changes in a high temperature environment, further increasing the tightness of fit, thereby ensuring the stability and reliability of the heat exchanger, and the connecting portion and the fixing groove can be easily installed, improving production efficiency and use effect.

[0035] Optionally, in some embodiments, since the heat exchanger is made into two separate entities, no sealing ring is required between the fixing parts and the replacement parts when they are installed, which increases the safety factor and ensures greater security.

[0036] like Figures 1 to 7 In the split and replaceable heat exchanger shown, the second cooling water pipe 7 is fixedly connected to the connecting portion 8, and the fixing groove 9 is provided for the second cooling water pipe 7 to pass through. Optionally, in some embodiments, the stability and reliability of the second cooling water pipe can be achieved by fixing the second cooling water pipe to the connecting portion. At the same time, when the fixing part and the replacement part are installed, the second cooling water pipe can be passed through the fixing groove from bottom to top so that the connecting portion is engaged with the fixing groove, and the second cooling water pipe can be easily installed and maintained, thereby improving production efficiency and use effect. Through the fixed connection between the connecting portion and the fixing groove, the second cooling water pipe can effectively transport cooling water to achieve cooling of the heat exchanger.

[0037] like Figures 1 to 7 In the split and detachable heat exchanger shown, the first cooling water pipe 6 includes a first inner pipe 63, a first outer pipe 64 sleeved on the outside of the first inner pipe 63, the first inner pipe 63 is provided with a first inner pipe channel 631, a first outer pipe channel 641 is provided between the first outer pipe 64 and the first inner pipe 63, the first cooling water pipe water inlet 61 is located on the first inner pipe channel 631, and the first cooling water pipe water outlet 62 is located on the first outer pipe channel 641. Optionally, in some embodiments, this design divides the first cooling water pipe into two parts, the first inner pipe and the first outer pipe, so that one first cooling water pipe can achieve the cooling effect, without the need for one water pipe for water inlet and one water pipe for water outlet.

[0038] Specifically, the cooling water can circulate in the first cooling water pipe. When the cooling water enters the first cooling water pipe, it first enters the first inner tube channel through the first cooling water pipe water inlet, and then flows from the first inner tube channel to the first outer tube channel. Finally, the cooling water leaves the first cooling water pipe through the first cooling water pipe water outlet. Through such a design, the cooling water can form a closed flow path in the first cooling water pipe to achieve a cooling effect on the fixed part. The structure of the first inner tube and the first outer tube can provide a larger surface area and enhance the cooling effect. The position design of the first cooling water pipe water inlet and the first cooling water pipe water outlet makes the inlet and outlet water flow smooth and easy to control.

[0039] By providing the first inner tube channel and the first outer tube channel, the flow rate and flow velocity of the cooling water can be better controlled, thereby better controlling the cooling effect of the fixing. In addition, since the first cooling water pipe inlet and the first cooling water pipe outlet are respectively located on the first inner tube channel and the first outer tube channel, the cooling water can be conveniently supplied and discharged, thereby improving production efficiency and use effect.

[0040] like Figures 1 to 7 A split and detachable heat exchanger is shown, the second cooling water pipe 7 comprises a second inner pipe 73, a second outer pipe 74 sleeved on the outer side of the second inner pipe 73, the second inner pipe 73 is provided with a second inner pipe channel 731, a second outer pipe channel 741 is provided between the second outer pipe 74 and the second inner pipe 73, the second cooling water pipe water inlet 71 is located on the second inner pipe channel 731, and the second cooling water pipe water outlet 72 is located on the second outer pipe channel 741. Optionally, in some embodiments, this design divides the second cooling water pipe into two parts, the second inner pipe and the second outer pipe, so that one second cooling water pipe can achieve the cooling effect, without the need for one water pipe for water inlet and one water pipe for water outlet.

[0041] Specifically, the cooling water can circulate in the second cooling water pipe. When the cooling water enters the second cooling water pipe, it first enters the second inner tube channel through the second cooling water pipe water inlet, and then flows from the second inner tube channel to the second outer tube channel. Finally, the cooling water leaves the second cooling water pipe through the second cooling water pipe water outlet. Through such a design, the cooling water can form a closed flow path in the second cooling water pipe to achieve a cooling effect on the replacement part. The structure of the second inner tube and the second outer tube can provide a larger surface area and enhance the cooling effect. The position design of the second cooling water pipe water inlet and the second cooling water pipe water outlet makes the inlet and outlet water flow smooth and easy to control.

[0042] By providing the second inner tube channel and the second outer tube channel, the flow rate and flow velocity of the cooling water can be better controlled, thereby better controlling the cooling effect of the replacement part. In addition, since the second cooling water pipe inlet and the second cooling water pipe outlet are respectively located on the second inner tube channel and the second outer tube channel, the cooling water can be conveniently supplied and discharged, thereby improving production efficiency and use effect.

[0043] like Figures 1 to 7 In the split and detachable heat exchanger shown, cooling water pipe sleeves 10 are respectively provided on the outside of the first cooling water pipe 6 and the second cooling water pipe 7. Optionally, in some embodiments, the cooling water pipe sleeves can also provide an additional protective layer to prevent the first cooling water pipe and the second cooling water pipe from being physically damaged or corroded by the external environment. At the same time, it can also reduce the surface temperature of the first cooling water pipe and the second cooling water pipe, reduce the heat radiation of the heat exchanger in the working environment, increase the heat insulation effect of the first cooling water pipe and the second cooling water pipe through the cooling water pipe sleeve, reduce the heat transfer from the outside to the first cooling water pipe and the second cooling water pipe, improve the operational safety, and thus extend the service life of the first cooling water pipe and the second cooling water pipe.

[0044] like Figures 1 to 7 A split and replaceable heat exchanger is shown, in which the bottom outer diameter of the fixing part 2 is close to the top outer diameter of the replacement part 3. Furthermore, as a preferred embodiment of the present invention but not a limitation, the fixing part and the replacement part have similar dimensions in outer diameter. Their outer diameters are close, and this design can make the fixing part and the replacement part form a relatively tight fit when connected, forming a sealed connection, thereby reducing the heat transferred from the connection to the outside and improving the heat transfer efficiency. At the same time, since the bottom and top outer diameters of the upper and replacement parts are close, the heat concentration in the local area can be reduced, thereby extending the service life of the heat exchanger. This design can also make the fixing parts and replacement parts form a stable support structure when connected, so as to better withstand thermal expansion and stress changes in high temperature environments, and ensure the stability and reliability of the heat exchanger.

[0045] like Figures 1 to 7 As shown, the implementation method of this embodiment is as follows:

[0046] A split and detachable heat exchanger includes a heat exchanger body 1, wherein the heat exchanger body 1 includes a fixing part 2 and a replacement part 3 located at the lower side of the fixing part 2, wherein the fixing part 2 and the replacement part 3 are detachably connected, wherein the fixing part 2 is provided with a first heat exchange chamber 4, and the replacement part 3 is provided with a second heat exchange chamber 5, and further includes a first cooling water pipe 6 connected to the first heat exchange chamber 4, and a second cooling water pipe 7 connected to the second heat exchange chamber 5.

[0047] The fixing member 2 is in an upper cone shape, and the replacement member 3 is in a lower cone shape.

[0048] The first cooling water pipe 6 is provided with a first cooling water pipe inlet 61 and a first cooling water pipe outlet 62 respectively connected to the first heat exchange chamber 4, and the second cooling water pipe 7 is provided with a second cooling water pipe inlet 71 and a second cooling water pipe outlet 72 respectively connected to the second heat exchange chamber 5.

[0049] The replacement part 3 is provided with a connecting portion 8 , and the fixing part 2 is provided with a matching portion that matches and fixes with the connecting portion 8 .

[0050] The matching portion is a fixing groove 9 located on the side wall of the fixing member 2 , and the connecting portion 8 extends upward and can be engaged in the fixing groove 9 .

[0051] The connecting portion 8 is a trapezoidal prism extending from bottom to top and tilted outwardly. The fixing groove 9 is similar in shape to the connecting portion 8 . The connecting portion 8 is provided with a connecting portion inclined surface 80 facing outwardly. The fixing groove 9 is provided with a fixing groove inclined surface 90 abutting against the connecting portion inclined surface 80 .

[0052] The second cooling water pipe 7 and the connecting portion 8 are fixedly connected, and the fixing groove 9 is provided for the second cooling water pipe 7 to pass through.

[0053] The first cooling water pipe 6 includes a first inner tube 63 and a first outer tube 64 sleeved on the outside of the first inner tube 63. The first inner tube 63 is provided with a first inner tube channel 631. A first outer tube channel 641 is provided between the first outer tube 64 and the first inner tube 63. The first cooling water pipe inlet 61 is located on the first inner tube channel 631. The first cooling water pipe outlet 62 is located on the first outer tube channel 641.

[0054] The second cooling water pipe 7 comprises a second inner pipe 73, a second outer pipe 74 sleeved on the outer side of the second inner pipe 73, the second inner pipe 73 is provided with a second inner pipe channel 731, a second outer pipe channel 741 is provided between the second outer pipe 74 and the second inner pipe 73, the second cooling water pipe water inlet 71 is located on the second inner pipe channel 731, and the second cooling water pipe water outlet 72 is located on the second outer pipe channel 741. Optionally, in some embodiments, this design divides the second cooling water pipe into two parts, the second inner pipe and the second outer pipe, so that one second cooling water pipe can achieve the cooling effect, without the need for one water pipe for water inlet and one water pipe for water outlet.

[0055] Specifically, cooling water can circulate in the first cooling water pipe 6. When the cooling water enters the first cooling water pipe 6, it first enters the first inner tube channel 631 through the first cooling water pipe water inlet 61, and then flows from the first inner tube channel 631 to the first outer tube channel 641. Finally, the cooling water leaves the first cooling water pipe 6 through the first cooling water pipe water outlet 62. Through such a design, the cooling water can form a closed flow path in the first cooling water pipe 6 to achieve a cooling effect on the fixing part 2. The structure of the first inner tube 53 and the first outer tube 64 can provide a larger surface area and enhance the cooling effect. The position design of the first cooling water pipe water inlet 61 and the first cooling water pipe water outlet 62 makes the inlet and outlet water flow smooth and easy to control.

[0056] Specifically, the first cooling water pipe 6 is connected to the first heat exchange chamber 4, and cooling water is introduced into the first heat exchange chamber 4 through the first cooling water pipe inlet 61. The cooling water ensures the uniform temperature of the fixed parts and reduces local overheating during the movement of the cooling water in the first heat exchange chamber 4. Then, the cooling water that has absorbed heat is discharged through the first cooling water pipe outlet 62 to achieve cooling and control of the heat in the first heat exchange chamber 4.

[0057] Specifically, the cooling water can circulate in the second cooling water pipe 7. When the cooling water enters the second cooling water pipe 7, it first enters the second inner tube channel 73 through the second cooling water pipe water inlet 71, and then flows from the second inner tube channel 73 to the second outer tube channel 74. Finally, the cooling water leaves the second cooling water pipe 7 through the second cooling water pipe water outlet 72. Through such a design, the cooling water can form a closed flow path in the second cooling water pipe 7 to achieve a cooling effect on the replacement part 3. The structure of the second inner tube 73 and the second outer tube 74 can provide a larger surface area and enhance the cooling effect. The position design of the second cooling water pipe water inlet 71 and the second cooling water pipe water outlet 72 makes the inlet and outlet water flow smooth and easy to control.

[0058] Specifically, the second cooling water pipe 7 is connected to the second heat exchange chamber 5, and cooling water is introduced into the second heat exchange chamber 5 through the second cooling water pipe inlet 71. The cooling water ensures the uniform temperature of the replacement part 3 and reduces local overheating during the movement of the cooling water in the second heat exchange chamber 5. The cooling water that has absorbed heat is then discharged through the second cooling water pipe outlet 72 to achieve cooling and control of the heat in the second heat exchange chamber 5.

[0059] The first cooling water pipe 6 and the second cooling water pipe 7 are provided with cooling water pipe sleeves 10 respectively. The bottom outer diameter of the fixing member 2 is close to the top outer diameter of the replacement member 3.

[0060] The utility model uses a split and detachable heat exchanger, and only the replacement part 3 located at the bottom that is easily damaged can be replaced without replacing the fixing part 2. The utility model not only reduces the replacement cost, but also greatly improves the production efficiency. The utility model communicates with the first heat exchange chamber 4 through the first cooling water pipe 6, and the second cooling water pipe 7 communicates with the second heat exchange chamber 5, so that the replacement operation can be performed without interrupting the cooling water flow, further reducing the replacement time and improving the production efficiency.

[0061] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A split and detachable heat exchanger, comprising a heat exchanger body (1), characterized in that: The heat exchanger body (1) comprises a fixing part (2) and a replacement part (3) located at the lower side of the fixing part (2); the fixing part (2) and the replacement part (3) are detachably connected; the fixing part (2) is provided with a first heat exchange cavity (4); the replacement part (3) is provided with a second heat exchange cavity (5); and further comprises a first cooling water pipe (6) connected to the first heat exchange cavity (4); and a second cooling water pipe (7) connected to the second heat exchange cavity (5).

2. A split and detachable heat exchanger according to claim 1, characterized in that: The first cooling water pipe (6) is provided with a first cooling water pipe inlet (61) and a first cooling water pipe outlet (62) respectively connected to the first heat exchange chamber (4), and the second cooling water pipe (7) is provided with a second cooling water pipe inlet (71) and a second cooling water pipe outlet (72) respectively connected to the second heat exchange chamber (5).

3. A split and detachable heat exchanger according to claim 2, characterized in that: The replacement part (3) is provided with a connecting portion (8), and the fixing part (2) is provided with a matching portion that matches and fixes with the connecting portion (8).

4. A split and detachable heat exchanger according to claim 3, characterized in that: The matching portion is a fixing groove (9) located on the side wall of the fixing member (2), and the connecting portion (8) extends upward and can be engaged in the fixing groove (9).

5. A split and detachable heat exchanger according to claim 4, characterized in that: The connecting portion (8) is a trapezoidal prism extending upward from bottom to top and tilted outward, the fixing groove (9) is similar in shape to the connecting portion (8), the connecting portion (8) is provided with a connecting portion inclined surface (80) facing outward, and the fixing groove (9) is provided with a fixing groove inclined surface (90) abutting against the connecting portion inclined surface (80).

6. A split and detachable heat exchanger according to claim 4, characterized in that: The second cooling water pipe (7) and the connecting portion (8) are fixedly connected, the fixing groove (9) allows the second cooling water pipe (7) to pass through, and the connecting portion (8) is provided with a connecting portion cavity (81) which is respectively connected to the second cooling water pipe water outlet (72) and the second heat exchange cavity (5).

7. The split and detachable heat exchanger according to claim 2, characterized in that: The first cooling water pipe (6) comprises a first inner pipe (63) and a first outer pipe (64) sleeved on the outside of the first inner pipe (63); the first inner pipe (63) is provided with a first inner pipe channel (631); a first outer pipe channel (641) is provided between the first outer pipe (64) and the first inner pipe (63); the first cooling water pipe water inlet (61) is located on the first inner pipe channel (631); and the first cooling water pipe water outlet (62) is located on the first outer pipe channel (641).

8. The split and detachable heat exchanger according to claim 2, characterized in that: The second cooling water pipe (7) comprises a second inner pipe (73) and a second outer pipe (74) sleeved on the outside of the second inner pipe (73); the second inner pipe (73) is provided with a second inner pipe channel (731); a second outer pipe channel (741) is provided between the second outer pipe (74) and the second inner pipe (73); the second cooling water pipe water inlet (71) is located on the second inner pipe channel (731); and the second cooling water pipe water outlet (72) is located on the second outer pipe channel (741).

9. The split and detachable heat exchanger according to claim 1, characterized in that: Cooling water pipe sleeves (10) are respectively provided on the outside of the first cooling water pipe (6) and the second cooling water pipe (7).

10. A split and detachable heat exchanger according to any one of claims 1 to 9, characterized in that: The bottom outer diameter of the fixing part (2) is close to the top outer diameter of the replacement part (3).

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