A scale-free hot water volumetric heat exchanger

Abstract

The present application relates to a scale-free hot water volumetric heat exchanger, comprising a body, a heat exchange tube bundle and an electrolytic anti-scaling device, wherein a heat exchange cavity is arranged in the body, and a water inlet and a water outlet communicating with the heat exchange cavity are arranged on the outer wall of the body; the heat exchange tube bundle is located in the heat exchange cavity and is used to allow a heat exchange medium to pass through, the heat exchange tube bundle comprises a first heat exchange tube bundle, one end of the first heat exchange tube bundle is set as an inlet end, a second heat exchange tube bundle is arranged at an end of the first heat exchange tube bundle away from the inlet end, and the diameter of the first heat exchange tube bundle is larger than that of the second heat exchange tube bundle, and an end of the second heat exchange tube bundle away from the second heat exchange tube bundle is set as an outlet end; the electrolytic anti-scaling device is located between the first heat exchange tube bundle and the second heat exchange tube bundle, and the first heat exchange tube bundle and the second heat exchange tube bundle are both connected to the electrolytic anti-scaling device. The present application has the effect that the heat exchange medium has been cooled in advance, thereby reducing the risk that high temperature water affects the electrode reaction and ion migration rate in the electrolysis process, thereby affecting the efficiency and stability of the device.

Description

Technical Field

[0001] The present application relates to the field of heat exchangers, and in particular to a scale-free hot water volumetric heat exchanger. Background Art

[0002] A volumetric heat exchanger is a device used for heat exchange. It separates the heat source and the heat carrier in a closed volume and realizes heat transfer through the heat exchange wall.

[0003] There is a volumetric heat exchanger in the prior art, including a body, a heat exchange cavity is provided in the body, a water inlet and a water outlet connected to the heat exchange cavity are provided on the outer wall of the body, a heat exchange tube bundle is provided in the body, the heat exchange tube bundle is located in the heat exchange cavity and is used for heat exchange medium to pass through, and an electrolytic anti-scaling device is provided at the inlet end of the heat exchange tube bundle to treat the heat exchange medium, thereby reducing scale in the heat exchange tube bundle.

[0004] Regarding the above-mentioned related technologies, high-temperature water may affect the electrode reaction and ion migration rate during the electrolysis process, thereby affecting the efficiency and stability of the descaling device in the heat exchanger. Summary of the invention

[0005] In order to improve the descaling efficiency of a volumetric heat exchanger, the present application provides a scale-free hot water volumetric heat exchanger.

[0006] The present application provides a non-scaling hot water volumetric heat exchanger that adopts the following technical solution:

[0007] A scale-free hot water volumetric heat exchanger, comprising:

[0008] A body, wherein a heat exchange cavity is provided inside the body, and a water inlet and a water outlet communicating with the heat exchange cavity are provided on the outer wall of the body;

[0009] A heat exchange tube bundle, the heat exchange tube bundle is located in the heat exchange cavity and is used for allowing heat exchange medium to pass through, the heat exchange tube bundle includes a first heat exchange tube bundle, one end of the first heat exchange tube bundle is set as an inlet end, a second heat exchange tube bundle is provided at an end of the first heat exchange tube bundle away from the inlet end, and the diameter of the first heat exchange tube bundle is larger than that of the second heat exchange tube bundle, and an end of the second heat exchange tube bundle away from the second heat exchange tube bundle is set as an outlet end;

[0010] The electrolytic anti-scaling device is located between the first heat exchange tube bundle and the second heat exchange tube bundle, and both the first heat exchange tube bundle and the second heat exchange tube bundle are connected to the electrolytic anti-scaling device.

[0011] By adopting the above technical solution, when the heat exchanger is working, the heat exchange medium enters the first heat exchange tube bundle through the inlet end, the heat exchange medium contacts the water body through the first heat exchange tube bundle, the heat exchange medium in the heat exchange tube bundle is added to the water body to cool it down to a certain extent, and the heat exchange medium after the temperature drops passes through the electrolytic anti-scaling device. After the heat exchange medium is treated by the electrolytic anti-scaling device, it enters the second heat exchange tube bundle to continue heating the water body; because the heat exchange medium is cooled in advance when flowing in the first heat exchange tube bundle, the risk of high-temperature water affecting the electrode reaction and ion migration rate in the electrolysis process, thereby affecting the efficiency and stability of the device, is reduced; at the same time, because the diameter of the first heat exchange tube bundle is larger than that of the second heat exchange tube bundle, in a thicker pipeline, the same flow rate will result in a lower flow rate, and a lower flow rate will reduce the scouring effect of the fluid in the pipeline, thereby reducing the deposition rate of solid particles on the inner wall of the pipeline, thereby reducing the amount of scaling on the inner wall of the first heat exchange tube bundle.

[0012] Optionally, the heat exchange chamber includes a first heat exchange chamber and a second heat exchange chamber that are interconnected, the water inlet is connected to the first heat exchange chamber, and the water outlet is connected to the second heat exchange chamber; the first heat exchange tube bundle is located in the first heat exchange chamber, and the second heat exchange tube bundle is located in the second heat exchange chamber.

[0013] By adopting the above technical solution, when water enters, since the first heat exchange tube bundle is located in the first heat exchange chamber, the low-temperature water entering the first heat exchange chamber first exchanges heat with the heat exchange medium in the first heat exchange tube bundle, thereby improving the heat exchange efficiency to a certain extent and making the temperature of the heat exchange medium entering the electrolytic anti-scaling device lower.

[0014] Optionally, a partition cavity is further provided in the device body, the electrolytic anti-scaling device is located in the partition cavity, and a maintenance port connected to the partition cavity is provided on the outer wall of the device body, and a maintenance door is provided at the maintenance port.

[0015] By adopting the above technical solution, when repairing the electrolytic anti-scaling device, it is only necessary to open the maintenance door and inspect and repair the electrolytic anti-scaling device in the partition chamber through the maintenance port, thereby simplifying the maintenance work to a certain extent.

[0016] Optionally, the electrolytic anti-scaling device includes a shell, an electrode plate group is arranged in the shell, and the first heat exchange tube bundle and the second heat exchange tube bundle are both connected to the inside of the shell.

[0017] By adopting the above technical solution, when the electrolytic anti-scaling device treats the heat exchange medium, the heat exchange medium enters the shell through the first heat exchange tube bundle, and then the heat exchange medium comes into contact with the electrode plate group inside the shell, and the water in the heat exchange medium undergoes an oxidation-reduction reaction on the electrode plate group to generate hydrogen ions and hydroxide ions, and the calcium ions and magnesium ions in the heat exchange medium combine with the hydroxide ions to form insoluble calcium carbonate and magnesium carbonate, thereby reducing the formation of scale.

[0018] Optionally, a cleaning component is provided on a side of the second heat exchange tube bundle close to the electrolytic anti-scaling device, and the cleaning component is connected to the electrode plate group and is used to vibrate the electrode plate group.

[0019] By adopting the above technical solution, during the operation of the heat exchanger, the cleaning component exerts a force on the electrode plate group, causing the electrode plate group to vibrate in the shell, thereby reducing the adhesion of impurities on the electrode plate group, and further reducing the number of times the electrode plate group is cleaned or replaced, which reduces maintenance costs and operational complexity to a certain extent.

[0020] Optionally, the electrode plate group is slidably connected to the shell, the cleaning component includes a vibrating member, the vibrating member is connected to a power member, the vibrating member includes a vibrating rod and the vibrating rod is located inside the shell, and the power member is used to drive the vibrating rod to impact the electrode plate group.

[0021] By adopting the above technical solution, when the heat exchanger is working, the power part drives the vibration rod to work, and the vibration rod continuously hits the electrode plate group, causing the electrode plate assembly to continuously slide in the shell, thereby generating vibration.

[0022] Optionally, the vibration member also includes a transmission half gear, the axis of the transmission half gear is perpendicular to the extension direction of the vibration rod, a gear groove is opened on one side of the vibration rod and the vibration rod is meshed with the transmission half gear through the gear groove; the transmission half gear is connected to a first bevel gear, the axis of the first bevel gear coincides with the axial direction of the transmission half gear, the first bevel gear is connected to a power member, and the power member is used to drive the first bevel gear to rotate around its own axis.

[0023] By adopting the above technical solution, during the operation of the electrolytic anti-scaling device, the power member drives the first bevel gear to rotate around its own axis, and then the first bevel gear drives the transmission half gear to rotate around its own axis. When the transmission half gear is engaged with the gear groove on the vibration rod, the transmission half gear drives the vibration rod to hit the electrode plate group. When the transmission half gear is disengaged from the gear groove on the vibration rod, the electrode plate group drives the vibration rod to move in the direction close to the second heat exchange tube bundle under the action of the flowing heat exchange medium, and the transmission half gear is engaged and separated with the gear groove on the vibration rod, thereby driving the vibration rod to continuously hit the electrode plate group.

[0024] Optionally, the inner wall of the shell is further connected to a limiting plate, the limiting plate is connected to a limiting block, and the vibration rod is slidably connected to the limiting block.

[0025] By adopting the above technical solution, when the vibration rod moves along its own extension direction, the limiting block limits the vibration rod.

[0026] Optionally, the power component includes an impeller, the impeller is connected to a transmission shaft, the axis of the transmission shaft coincides with the axis of the rotating shaft of the impeller, and the end of the transmission shaft away from the impeller is connected to a second bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0027] By adopting the above technical solution, the heat exchange medium contacts the impeller when flowing in the second heat exchange tube bundle, thereby driving the impeller to rotate. Secondly, the impeller drives the second bevel gear to rotate around its own axis through the rotating shaft, and then the second bevel gear drives the first bevel gear to rotate around its own axis.

[0028] Optionally, the second heat exchange tube bundle is a disc tube bundle.

[0029] By adopting the above technical solution, the arrangement and design of the disc tube bundle ensures that a larger surface area is in contact with the fluid, thereby maximizing the heat exchange efficiency.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. When the heat exchanger is working, the heat exchange medium enters the first heat exchange tube bundle through the inlet end, and the heat exchange medium contacts the water body through the first heat exchange tube bundle. The heat exchange medium in the heat exchange tube bundle adds to the water body to cool it down to a certain extent. The heat exchange medium after the temperature drops passes through the electrolytic anti-scaling device. After the heat exchange medium is treated by the electrolytic anti-scaling device, it enters the second heat exchange tube bundle to continue heating the water body. Since the heat exchange medium is cooled in advance when flowing in the first heat exchange tube bundle, the risk of high-temperature water affecting the electrode reaction and ion migration rate in the electrolysis process, thereby affecting the efficiency and stability of the device, is reduced;

[0032] 2. When water is entering, since the first heat exchange tube bundle is located in the first heat exchange cavity, the low-temperature water entering the first heat exchange cavity first exchanges heat with the heat exchange medium in the first heat exchange tube bundle, thereby improving the heat exchange efficiency to a certain extent and making the temperature of the heat exchange medium entering the electrolytic anti-scaling device lower;

[0033] 3. During the operation of the heat exchanger, the cleaning component exerts force on the electrode plate group, causing the electrode plate group to vibrate inside the shell, thereby reducing the adhesion of impurities on the electrode plate group, and further reducing the number of cleaning or replacement of the electrode plate group, which reduces maintenance costs and operational complexity to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0035] Figure 2 is a top view of an embodiment of the present application;

[0036] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0037] Figure 4 yes Figure 3 A partial enlarged schematic diagram of part B;

[0038] Figure 5 Schematic diagram of the internal structure of the electrolytic anti-scaling device in the embodiment of the present application;

[0039] Figure 6 It is a schematic diagram of the internal structure of the device body in the embodiment of the present application;

[0040] In the figure: 1. body; 11. heat exchange chamber; 111. first heat exchange chamber; 112. second heat exchange chamber; 12. partition chamber; 13. water inlet; 14. water outlet; 15. maintenance port; 16. maintenance door; 2. heat exchange tube bundle; 21. first heat exchange tube bundle; 22. second heat exchange tube bundle; 23. inlet end; 24. outlet end; 3. electrolytic anti-scaling device; 31. shell; 32. electrode plate group; 4. cleaning component; 41. vibration member; 411. vibration rod; 412. transmission half gear; 413. first bevel gear; 414. gear groove; 42. power member; 421. impeller; 422. transmission shaft; 423. second bevel gear; 43. limit plate; 44. limit block. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-6 This application is described in further detail.

[0042] The present application discloses a non-scaling hot water volumetric heat exchanger. Figure 1 and Figure 2 A scale-free hot water volumetric heat exchanger includes a body 1.

[0043] Reference Figure 2 and Figure 3 The body 1 is provided with a heat exchange cavity 11, and the outer wall of the body 1 is provided with a water inlet 13 and a water outlet 14 communicating with the heat exchange cavity 11. The heat exchange cavity 11 is provided with a heat exchange tube bundle 2 and the heat exchange tube bundle 2 is used to allow the heat exchange medium to pass through. The heat exchange tube bundle 2 includes a first heat exchange tube bundle 21, and one end of the first heat exchange tube bundle 21 is set as an inlet end 23. The end of the first heat exchange tube bundle 21 away from the inlet end 23 is provided with a second heat exchange tube bundle 22, and the diameter of the first heat exchange tube bundle 21 is larger than that of the second heat exchange tube bundle 22. The second heat exchange tube bundle 22 adopts a disc tube bundle that can make its own tube wall contact more with the water body, thereby greatly improving the heat exchange efficiency. The end of the second heat exchange tube bundle 22 away from the second heat exchange tube bundle 22 is set as an outlet end 24, and the inlet end 23 and the outlet end 24 both extend out of the heat exchange cavity 11 and communicate with the outer wall of the body 1.

[0044] Reference Figure 3 and Figure 4 An electrolytic anti-scaling device 3 is further provided between the first heat exchange tube bundle 21 and the second heat exchange tube bundle 22. The electrolytic anti-scaling device 3 includes a shell 31. An electrode plate group 32 is provided in the shell 31. The first heat exchange tube bundle 21 and the second heat exchange tube bundle 22 are both connected to the inside of the shell 31. A cleaning component 4 is provided on one side of the second heat exchange tube bundle 22 close to the electrolytic anti-scaling device 3. The cleaning component 4 is connected to the electrode plate group 32 and is used to vibrate the electrode plate group 32.

[0045] The water enters the heat exchange chamber 11 through the water inlet 13. When the heat exchanger is working, the heat exchange medium enters the first heat exchange tube bundle 21 through the inlet end 23. The heat exchange medium contacts the water through the first heat exchange tube bundle 21. The heat exchange medium in the heat exchange tube bundle 2 adds to the water to cool it down to a certain extent. The heat exchange medium after the temperature drops passes through the electrolytic anti-scaling device 3. When the electrolytic anti-scaling device 3 treats the heat exchange medium, the heat exchange medium enters the shell 31 through the first heat exchange tube bundle 21. Then, the heat exchange medium contacts the electrode plate group 32 inside the shell 31. The water in the heat exchange medium undergoes an oxidation-reduction reaction on the electrode plate group 32 to generate hydrogen ions and hydroxide ions. The calcium ions and magnesium ions in the heat exchange medium combine with the hydroxide ions to form insoluble calcium carbonate and magnesium carbonate, thereby reducing the formation of scale. After being treated by the electrolytic anti-scaling device 3, the heat exchange medium enters the second heat exchange tube bundle 22 to continue heating the water.

[0046] Since the heat exchange medium is cooled in advance when flowing in the first heat exchange tube bundle 21, the risk of high-temperature water affecting the electrode reaction and ion migration rate in the electrolysis process, thereby affecting the efficiency and stability of the device, is reduced; at the same time, since the diameter of the first heat exchange tube bundle 21 is larger than that of the second heat exchange tube bundle 22, in a thicker pipeline, the same flow rate will result in a lower flow rate, and the lower flow rate will reduce the scouring effect of the fluid in the pipeline, thereby reducing the deposition rate of solid particles on the inner wall of the pipeline, and thereby reducing the amount of scaling on the inner wall of the first heat exchange tube bundle 21.

[0047] Reference Figure 2 and Figure 3 The heat exchange chamber 11 includes a first heat exchange chamber 111, a second heat exchange chamber 112 and a partition chamber 12 which are interconnected. The water inlet 13 is connected to the first heat exchange chamber 111, and the water outlet 14 is connected to the second heat exchange chamber 112. The first heat exchange tube bundle 21 is located in the first heat exchange chamber 111, the second heat exchange tube bundle 22 is located in the second heat exchange chamber 112, the electrolytic anti-scaling device 3 is located in the partition chamber 12, and the outer wall of the body 1 is provided with a maintenance port 15 which is connected to the partition chamber 12, and a maintenance door 16 is provided at the maintenance port 15.

[0048] When water enters, the water enters the first heat exchange chamber 111 through the water inlet 13, and at the same time, the heat exchange medium enters the first heat exchange tube bundle 21 through the inlet port 23. Since the first heat exchange tube bundle 21 is located in the first heat exchange chamber 111, the low-temperature water entering the first heat exchange chamber 111 first exchanges heat with the heat exchange medium in the first heat exchange tube bundle 21, thereby improving the heat exchange efficiency to a certain extent, and making the temperature of the heat exchange medium entering the electrolytic anti-scaling device 3 lower. In addition, when the electrolytic anti-scaling device 3 needs to be cleaned or repaired, the maintenance door 16 is opened, and the electrolytic anti-scaling device 3 in the partition chamber 12 is inspected and repaired through the maintenance port 15, thereby simplifying the cleaning and maintenance work to a certain extent.

[0049] Reference Figure 4 and Figure 5 The cleaning component 4 includes a limit plate 43, which is connected to the inner wall of the shell 31, and the limit plate 43 is connected to the limit block 44. The cleaning component 4 also has a vibrating member 41, and the vibrating member 41 includes a limit block 44. The vibrating rod 411 is slidably connected to the limit block 44. A gear groove 414 is provided on one side of the vibrating rod 411, and the vibrating rod 411 is meshed with a transmission half gear 412 through the gear groove 414. The transmission half gear 412 is connected to a first bevel gear 413, and the axis of the first bevel gear 413 coincides with the axial direction of the transmission half gear 412. The first bevel gear 413 is connected to the power member 42, and the power member 42 is used to drive the first bevel gear 413 to rotate around its own axis. The electrode plate group 32 is slidably connected to the shell 31.

[0050] During the operation of the electrolytic anti-scaling device 3, impurities in the heat exchange medium will form precipitation on the surface of the electrode plate group 32, and the power member 42 drives the first bevel gear 413 to rotate around its own axis, and then the first bevel gear 413 drives the transmission half gear 412 to rotate around its own axis. When the transmission half gear 412 is engaged with the gear groove 414 on the vibration rod 411, the transmission half gear 412 drives the vibration rod 411 to hit the electrode plate group 32. When the transmission half gear 412 is disengaged from the gear groove 414 on the vibration rod 411, the electrode plate Under the action of the flowing heat exchange medium, the group 32 drives the vibration rod 411 to move towards the direction close to the second heat exchange tube bundle 22, and through the engagement and separation of the transmission half gear 412 and the gear groove 414 on the vibration rod 411, the vibration rod 411 is driven to continuously hit the electrode plate group 32, so that the electrode plate group 32 continuously slides in the shell 31, thereby generating vibration, thereby reducing the adhesion of impurities on the electrode plate group 32, thereby reducing the number of times the electrode plate group 32 is cleaned or replaced, and reducing maintenance costs and operational complexity to a certain extent.

[0051] Reference Figure 4 and Figure 5The power part 42 includes an impeller 421, and the impeller 421 is connected to a transmission shaft 422. The axis of the transmission shaft 422 coincides with the axis of the rotation axis of the impeller 421. The end of the transmission shaft 422 away from the impeller 421 is connected to a second bevel gear 423, and the second bevel gear 423 is meshed with the first bevel gear 413; when the heat exchange medium flows in the second heat exchange tube bundle 22, it contacts the impeller 421, thereby driving the impeller 421 to rotate, and then the impeller 421 drives the second bevel gear 423 to rotate around its own axis through the rotating shaft, and then the second bevel gear 423 drives the first bevel gear 413 to rotate around its own axis, thereby driving the vibration rod 411 to continuously impact the electrode plate group 32.

[0052] The implementation principle of a scale-free hot water volumetric heat exchanger in the embodiment of the present application is as follows: water enters the heat exchange chamber 11 through the water inlet 13. When the heat exchanger is working, the heat exchange medium enters the first heat exchange tube bundle 21 through the inlet end 23, and then enters the second heat exchange tube bundle 22 after being treated by the electrolysis anti-scaling device 3; since the heat exchange medium is cooled in advance when flowing in the first heat exchange tube bundle 21, the risk of high-temperature water affecting the electrode reaction and ion migration rate in the electrolysis process, thereby affecting the efficiency and stability of the device, is reduced; at the same time, since the first heat exchange tube bundle 21 The diameter is larger than that of the second heat exchange tube bundle 22. In a thicker pipe, the same flow rate will result in a lower flow velocity. A lower flow velocity will reduce the scouring effect of the fluid in the pipe, thereby reducing the deposition rate of solid particles on the inner wall of the pipe, and further reducing the amount of scaling on the inner wall of the first heat exchange tube bundle 21. The pipe of the second heat exchange tube bundle 22 is thinner, so that its internal flow velocity is greater, so that the impeller 421 is driven to rotate during the flow of the heat exchange medium, and then the vibration rod 411 continuously hits the electrode plate group 32, thereby reducing the adhesion of impurities on the electrode plate group 32.

[0053] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A scale-free hot water volumetric heat exchanger, characterized in that ,include: A body (1), wherein a heat exchange cavity (11) is provided in the body (1), and a water inlet (13) and a water outlet (14) communicating with the heat exchange cavity (11) are provided on the outer wall of the body (1); A heat exchange tube bundle (2), the heat exchange tube bundle (2) being located in a heat exchange cavity (11) and being used for allowing a heat exchange medium to pass through the heat exchange tube bundle (2), the heat exchange tube bundle (2) comprising a first heat exchange tube bundle (21), one end of the first heat exchange tube bundle (21) being set as an inlet end (23), a second heat exchange tube bundle (22) being provided at an end of the first heat exchange tube bundle (21) away from the inlet end (23), and the diameter of the first heat exchange tube bundle (21) being larger than that of the second heat exchange tube bundle (22), and the second heat exchange tube bundle (22) being set as a heat exchange tube bundle (21). The end of the heat exchange tube bundle (22) facing away from the second heat exchange tube bundle (22) is set as an outlet end (24); the heat exchange chamber (11) comprises a first heat exchange chamber (111) and a second heat exchange chamber (112) which are connected to each other, the water inlet (13) is connected to the first heat exchange chamber (111), and the water outlet (14) is connected to the second heat exchange chamber (112); the first heat exchange tube bundle (21) is located in the first heat exchange chamber (111), and the second heat exchange tube bundle (22) is located in the second heat exchange chamber (112); An electrolytic anti-scaling device (3) is located between the first heat exchange tube bundle (21) and the second heat exchange tube bundle (22), and both the first heat exchange tube bundle (21) and the second heat exchange tube bundle (22) are connected to the electrolytic anti-scaling device (3).

2. A scale-free hot water volumetric heat exchanger according to claim 1, characterized in that: The body (1) is further provided with a partition chamber (12), the electrolytic anti-scaling device (3) is located in the partition chamber (12), the outer wall of the body (1) is provided with a maintenance port (15) connected to the partition chamber (12), and the maintenance port (15) is provided with a maintenance door (16).

3. A scale-free hot water volumetric heat exchanger according to claim 1, characterized in that: The electrolytic anti-scaling device (3) comprises a shell (31), an electrode plate group (32) is arranged inside the shell (31), and the first heat exchange tube bundle (21) and the second heat exchange tube bundle (22) are both connected to the inside of the shell (31).

4. A scale-free hot water volumetric heat exchanger according to claim 3, characterized in that: A cleaning component (4) is provided on one side of the second heat exchange tube bundle (22) close to the electrolytic anti-scaling device (3); the cleaning component (4) is connected to the electrode plate group (32) and is used to vibrate the electrode plate group (32).

5. A scale-free hot water volumetric heat exchanger according to claim 4, characterized in that: The electrode plate group (32) is slidably connected to the shell (31); the cleaning component (4) comprises a vibrating member (41); the vibrating member (41) is connected to a power member (42); the vibrating member (41) comprises a vibrating rod (411) and the vibrating rod (411) is located inside the shell (31); the power member (42) is used to drive the vibrating rod (411) to impact the electrode plate group (32).

6. A scale-free hot water volumetric heat exchanger according to claim 5, characterized in that: The vibration member (41) further comprises a transmission half gear (412), the axis of which is perpendicular to the extension direction of the vibration rod (411), a gear groove (414) is provided on one side of the vibration rod (411), and the vibration rod (411) is meshed with the transmission half gear (412) through the gear groove (414); the transmission half gear (412) is connected to a first bevel gear (413), the axis of which coincides with the axial direction of the transmission half gear (412), the first bevel gear (413) is connected to a power member (42), and the power member (42) is used to drive the first bevel gear (413) to rotate around its own axis.

7. A scale-free hot water volumetric heat exchanger according to claim 6, characterized in that: The inner wall of the housing (31) is also connected to a limiting plate (43), the limiting plate (43) is connected to a limiting block (44), and the vibration rod (411) is slidably connected to the limiting plate (43).

8. The scale-free hot water volumetric heat exchanger according to claim 6, characterized in that: The power component (42) comprises an impeller (421), the impeller (421) is connected to a transmission shaft (422), the axis of the transmission shaft (422) coincides with the rotation axis of the impeller (421), and one end of the transmission shaft (422) away from the impeller (421) is connected to a second bevel gear (423), and the second bevel gear (423) is meshed with the first bevel gear (413).

9. The scale-free hot water volumetric heat exchanger according to claim 1, characterized in that: The second heat exchange tube bundle (22) is a disc-type tube bundle.

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