High-efficiency heat exchange device of pure wastewater system

Abstract

The utility model discloses a high-efficiency heat exchange device of a pure waste water system, and relates to the technical field of heat exchangers, the high-efficiency heat exchange device comprises a box body, heat exchange pipes and joint cavities, a plurality of heat exchange pipes are arranged in the box body, the joint cavities are arranged at the two ends of the box body, the corresponding joint cavities are communicated with the ends of the heat exchange pipes, and the joint cavities are further connected with corresponding water inlet / outlet pipes. The cleaning device is characterized in that a cleaning agent inflow assembly and a cleaning agent outflow assembly are arranged in connector cavities in the two ends of the box body respectively; the cleaning agent inflow assembly and the cleaning agent outflow assembly are respectively in driving connection with the corresponding action driving mechanisms; and the action driving mechanism can enable the cleaning agent inflow assembly, the heat exchange tube and the cleaning agent outflow assembly to be connected or disconnected. The heat exchange tube to be cleaned is switched under the condition that the heat exchange process is not affected, deposition of microorganisms and / or dirt in the heat exchange tube caused by a waste water heat medium is avoided, and the heat exchanger does not need to be disassembled frequently.

Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, and in particular to a high-efficiency heat exchange device for a pure wastewater system. Background Technology

[0002] Shell and tube heat exchangers are the most widely used heat exchange equipment, with advantages such as simple structure and resistance to high temperature and high pressure.

[0003] Taking a chemical wastewater recycling and treatment system as an example, it achieves cooling and recovery through efficient heat exchange between the heat medium wastewater in the tube side and the cooling medium in the shell side. The heat medium wastewater flows in and out through the tube side. However, during long-term operation, suspended particles, microorganisms, and organic matter in the wastewater are very likely to form complex fouling on the inner wall of the heat exchange tubes in the tube side, which may lead to problems such as a decrease in heat transfer coefficient. When cleaning the inside of the heat exchange tubes of a traditional heat exchanger, the heat exchanger is disassembled manually and each tube is cleaned. On the one hand, there are pain points such as complicated operation and high maintenance costs. On the other hand, when faced with a complex heat exchange pipeline structure, the method of cleaning the inner wall of the heat exchange tubes by scraping with a movable brush or sponge ball is prone to causing the cleaning equipment to get stuck or failing to clean all parts of the pipeline. Therefore, there is an urgent need for a new type of shell-and-tube heat exchanger that integrates self-cleaning function and is easy to maintain. Utility Model Content

[0004] The main purpose of this application is to provide a high-efficiency heat exchange device for a pure wastewater system, which aims to solve the technical problem of difficult internal cleaning of heat exchange pipes in traditional heat exchangers in related technologies.

[0005] Specifically, disassembling and cleaning the heat exchanger is complicated, requires stopping its operation, which affects work efficiency, and using cleaning tools such as brushes can lead to clogging or insufficient cleaning. Considering these factors, this application designs the heat exchanger with the aim of cleaning without affecting the heat exchange operation and thoroughly cleaning all parts of the pipeline.

[0006] To achieve the above objectives, this application provides a high-efficiency heat exchange device for a pure wastewater system, comprising a housing, heat exchange tubes, and connector cavities. Multiple heat exchange tubes are arranged inside the housing, and connector cavities are provided at both ends of the housing, with the corresponding connector cavities connected to the ends of the heat exchange tubes. The connector cavities are also connected to corresponding inlet / outlet water pipes. The device is characterized in that the connector cavities at both ends of the housing are respectively provided with a detergent inflow component and a detergent outflow component.

[0007] The cleaning agent inflow component and the cleaning agent outflow component are respectively connected to the corresponding actuation drive mechanism; the actuation drive mechanism can connect / disconnect the cleaning agent inflow component, heat exchange tube, and cleaning agent outflow component.

[0008] In one embodiment, the motion drive mechanism includes a rotary unit and an axial motion unit;

[0009] The axial actuation unit enables the cleaning agent inflow component and / or cleaning agent outflow component to move axially, thereby connecting or disconnecting the cleaning agent inflow component-heat exchange tube-cleaning agent outflow component;

[0010] The rotating unit can drive the detergent inflow component and / or detergent outflow component to rotate, so that the detergent inflow component and / or detergent outflow component are connected to different heat exchange tubes.

[0011] In one embodiment, the cleaning agent inflow assembly includes a first guide tube and a first guide channel that are in communication with each other, the first guide tube being movably installed in the cleaning device mounting channel; the cleaning device mounting channel is disposed on the connector cavity;

[0012] The first guide channel can also selectively fit against the outer surface of one end of the housing, so that the inner area of ​​the first guide channel can selectively cover one end of the heat exchange tube to be cleaned.

[0013] The cleaning agent outflow assembly includes a second guide pipe and a second guide channel that are interconnected. The second guide pipe is movably installed in the cleaning device installation channel, and the second guide channel is selectively attached to the outer surface of the other end of the housing so that the inner area of ​​the second guide channel can selectively cover the other end of the heat exchange tube to be cleaned.

[0014] In one embodiment, the rotating unit includes a first rotating motor, a first driving gear mounted on the rotating shaft of the first rotating motor and rotating synchronously with the rotating shaft, and a first driven gear meshing with the first driving gear;

[0015] The rotating unit also includes a second rotating motor, a second driving gear mounted on the rotating shaft of the second rotating motor and rotating synchronously with the rotating shaft, and a second driven gear meshing with the second driving gear;

[0016] The first driven gear is slidably engaged with the first guide tube, and the second driven gear is slidably engaged with the second guide tube.

[0017] In one embodiment, the rotating unit further includes a first limiting component and a second limiting component;

[0018] The first driven gear is installed in the first limiting assembly, and the second driven gear is installed in the second limiting assembly.

[0019] In one embodiment, the cleaning device installation channel includes a first drainage unit, a first limiting unit, a second drainage unit, and a second limiting unit;

[0020] The cleaning agent inflow assembly is installed in the connector cavity at one end through the first drainage unit and the first limiting unit, and the cleaning agent outflow assembly is installed in the connector cavity at the other end through the second drainage unit and the second limiting unit.

[0021] Both the first and second limiting units are equipped with drainage pipes, which are also connected to the outlet pipe in a conductive manner.

[0022] In one embodiment, the housing also includes a plurality of staggered baffles.

[0023] One or more technical solutions proposed in this application have at least the following technical effects:

[0024] It is easy to understand that this application uses a cleaning agent inflow component to isolate the cleaning agent from the wastewater heat medium as it flows into the heat exchange tube to be cleaned, and a cleaning agent outflow component is set on the other side of the heat exchange tube to isolate the cleaning agent from the wastewater heat medium as it flows out. Since the cleaning agent is a fluid, it can fully cover all parts of the heat exchange tube. As long as the cleaning agent stays in the tube for a certain period of time, it can fully dissolve the wastewater scale. Furthermore, this application uses a drive mechanism to effectively control the cleaning device, so that the cleaning device can fit against both ends of the heat exchange tube to be cleaned, achieving isolated transmission of the cleaning agent from the wastewater heat medium. Alternatively, when switching to clean other heat exchange tubes to be cleaned, the cleaning device can be controlled to switch the corresponding cleaning position. Since the heat exchange tube to be cleaned is only a part of all heat exchange tubes, the cleaning operation of the heat exchange tube to be cleaned does not affect the flow of the wastewater heat medium in other heat exchange tubes, and therefore does not affect the heat exchange treatment of the wastewater heat medium.

[0025] In summary, this application achieves comprehensive cleaning of the heat exchange tubes to be cleaned using a cleaning agent, and through a cleaning position switching device, it enables the switching of the heat exchange tubes to be cleaned without affecting the heat exchange process. This avoids the deposition of microorganisms and / or dirt inside the heat exchange tubes due to wastewater heat medium and eliminates the need for frequent disassembly of the heat exchanger, thereby improving heat exchange efficiency. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0028] Figure 1This is a schematic diagram of the structure of the first embodiment of the high-efficiency heat exchange device for a pure wastewater system according to this application.

[0029] Figure 2 This is a disassembled structural diagram of the first embodiment of the high-efficiency heat exchange device for a pure wastewater system according to this application.

[0030] Figure 3 This is a schematic diagram of the shell-side internal structure of the first embodiment of the high-efficiency heat exchange device for a pure wastewater system according to this application.

[0031] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0032] Reference numerals: 100 Housing, 101 Shell-side outlet, 102 Shell-side inlet, 103 Fixing plate, 103A Baffle plate, 200 Connector cavity, 201 Tube-side inlet, 202 Tube-side outlet, 203 Heat exchange tube, 301A Second flow-inducing unit, 301B Second limiting unit, 302 Second flow-inducing pipe, 303A First flow-inducing unit, 303B First limiting unit, 304 First flow-inducing pipe, 305 First limiting assembly, 306 First driven gear, 307 First driving gear, 308 Cleaning agent inflow assembly, 308A First guide pipe, 308B First guide channel, 309 Second limiting assembly, 310 Second driven gear, 311 Second driving gear, 312 Cleaning agent outflow assembly, 312A Second guide pipe, 312B Second guide channel. Detailed Implementation

[0033] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0034] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0035] In related technologies, such as in wastewater recycling systems, high-efficiency heat exchange devices in pure wastewater systems are typically used to cool chemical wastewater before it is recycled using other devices. The heat medium wastewater flows in and out through the tubes. However, during operation, traditional heat exchangers lack devices for cleaning the inside of the heat exchange pipes. Cleaning and maintenance rely on manual disassembly, which presents pain points such as complex operation and high maintenance costs. There is an urgent need to develop a new type of shell-and-tube heat exchanger that integrates self-cleaning functions and is easy to maintain.

[0036] In view of the above problems, this application proposes a high-efficiency heat exchange device for a pure wastewater system. The design of the cleaning device of the heat exchanger is that a cleaning agent flows into the cleaning device and is attached to the outer surface of both ends of the tube, so that the cleaning agent can flow into the inside of the heat exchange pipe for cleaning. The cleaning position switching device realizes the sequential cleaning of each heat exchange pipe by pulling and rotating the cleaning device. In this way, the inside of each pipe can be thoroughly cleaned without affecting the heat exchange progress of the heat exchanger.

[0037] Based on this, Embodiment 1 of this application provides a high-efficiency heat exchange device for a pure wastewater system, referring to... Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the high-efficiency heat exchange device for the pure wastewater system in this application. Figure 2 This is a disassembled structural diagram of a high-efficiency heat exchange device for a pure wastewater system. Figure 3 This is a schematic diagram of the internal structure of the shell side.

[0038] In this embodiment, the high-efficiency heat exchange device for the pure wastewater system includes a housing 100, heat exchange tubes 203, and a connector cavity 200. Multiple heat exchange tubes 203 are installed inside the housing 100. Connector cavities 200 are provided at both ends of the housing 100, and the corresponding connector cavities 200 are connected to the ends of the heat exchange tubes 203. The connector cavities 200 are also connected to the corresponding inlet / outlet water pipes. The connector cavities 200 at both ends of the housing are respectively provided with a detergent inflow component 308 and a detergent outflow component 312.

[0039] The cleaning agent inflow component 308 and the cleaning agent outflow component 312 are respectively connected to the corresponding actuation drive mechanism; the actuation drive mechanism can connect or disconnect the cleaning agent inflow component 308, the heat exchange tube 203, and the cleaning agent outflow component 312.

[0040] The further actuation mechanism includes a rotating unit and an axial actuation unit; the axial actuation unit enables the detergent inflow assembly 308 and / or detergent outflow assembly 312 to move axially, thereby connecting or disconnecting the detergent inflow assembly 308-heat exchange tube 203-detergent outflow assembly 312; the rotating unit enables the detergent inflow assembly 308 and / or detergent outflow assembly 312 to rotate, so that the detergent inflow assembly 308 and / or detergent outflow assembly 312 are connected to different heat exchange tubes.

[0041] Furthermore, the cleaning agent inflow assembly 308 includes a first guide pipe 308A and a first guide channel 308B connected to each other. The first guide pipe 308A is movably installed in the cleaning device installation channel, which is located on the connector cavity 200. The first guide channel 308B can also selectively fit against the outer surface of one end of the housing 100, so that the inner area of ​​the first guide channel 308B can selectively cover one end of the heat exchange tube to be cleaned.

[0042] The cleaning agent outflow assembly 312 includes a second guide pipe 312A and a second guide groove 312B. The second guide pipe 312A is movably installed in the cleaning device installation channel. The second guide groove 312B is also selectively attached to the outer surface of the other end of the housing 100 so that the groove area of ​​the second guide groove 312B can selectively cover the other end of the heat exchange tube to be cleaned.

[0043] The cleaning position switching device includes an axial motion unit and a rotation unit. The axial motion unit is used to control the cleaning device to move away from or to fit against the outer surfaces of both ends of the housing; the rotation unit is used to switch the coverage area of ​​the cleaning device.

[0044] The rotating unit includes a first rotary motor (not shown in the figure), a first driving gear 307 mounted on the rotating shaft of the first rotary motor and rotating synchronously with the rotating shaft, and a first driven gear 306 meshing with the first driving gear 307. The rotating unit also includes a second rotary motor (not shown in the figure), a second driving gear 311 mounted on the rotating shaft of the second rotary motor and rotating synchronously with the rotating shaft, and a second driven gear 310 meshing with the second driving gear. The first driven gear 306 is slidably engaged with the first guide tube, and the second driven gear 310 is slidably engaged with the second guide tube.

[0045] The rotating unit also includes a first limiting component 305 and a second limiting component 309. A first driven gear 306 is installed in the first limiting component 305, and a second driven gear 310 is installed in the second limiting component 309.

[0046] The cleaning device installation channel includes a first drainage unit 303A, a first limiting unit 303B, a second drainage unit 301A, and a second limiting unit 301B. The cleaning agent inflow component 308 is installed in the connector cavity 200 at one end via the first drainage unit 303A and the first limiting unit 303B, while the cleaning agent outflow component 312 is installed in the connector cavity 200 at the other end via the second drainage unit 301A and the second limiting unit 301B. Both the first limiting unit 303B and the second limiting unit 301B are equipped with drainage pipes, which are also connected in a conductive manner to the water outlet pipe.

[0047] The housing 100 also contains multiple staggered baffles 103A.

[0048] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the heat medium for wastewater flows inside the tube side of the high-efficiency heat exchange device of the pure wastewater system, while the cold medium for heat exchange flows inside the shell side. Specifically, the heat medium for wastewater flows in from the tube side inlet 201, flows through part of the heat exchange tubes 103, and then flows out from the tube side outlet 202. The cold medium flows in from the shell side inlet 102, is deflected multiple times by the baffle 103A, and then flows out from the shell side outlet 101.

[0049] In this embodiment, as Figure 1 As shown, the cleaning device includes a cleaning agent inflow assembly 308 and a cleaning agent outflow assembly 312, such as Figure 2 As shown, the cleaning agent inflow assembly 308 includes a first guide pipe 308B and a first guide channel 308A, and the cleaning agent outflow assembly 312 includes a second guide pipe 312A and a second guide channel 312B. It can be understood that during the use of the heat exchanger, the first guide channel 308B and the second guide channel 312B are respectively closely attached to the outer surfaces of both ends of the shell side, that is, the housing 100, and cover part of the port of the heat exchange tube (the heat exchange tube to be cleaned).

[0050] Specifically, the cleaning agent can flow into the first guide channel 308B through the first guide pipe 308A, then into the heat exchange tube 203 covered by the first guide channel 308B, and finally out through the second guide channel 312B, thus cleaning the heat exchange tubes covered by the guide channels. It is understood that since both the first guide channel 308B and the second guide channel 312B are tightly fitted to the housing 100, cleaning the heat exchange tubes 203 covered by the first guide channel 308B and the second guide channel 312B does not affect the normal use of other heat exchange tubes; the heat medium can undergo normal heat exchange through other heat exchange tubes.

[0051] Furthermore, the cleaning agent inflow component 308 and the cleaning agent outflow component 312 are movably installed in the cleaning device installation channel, allowing the cleaning device to rotate and move axially within the cleaning device installation channel. The cleaning device installation channel includes a first drainage unit 303A, a first limiting unit 303B, a second drainage unit 301A, and a second limiting unit 301B. The first drainage unit 303A is connected to a first drainage pipe 304, and the second drainage unit 301A is connected to a second drainage pipe 302. The other end of the first drainage pipe 304 and the other end of the second drainage pipe 302 are both connected to the pipe outlet 202.

[0052] The inner surface of the first limiting unit 303B is in close contact with the outer surface of the first guide tube 308A, and the inner surface of the second limiting unit 301B is in close contact with the outer surface of the second guide tube 312A. Both the first guide unit 303A and the second guide unit 301A have redundant guide space. It can be understood that through this design, the hot medium that may seep out from the gap between the guide tube and the limiting unit can flow into the redundant guide space of the guide unit and be discharged into the tube outlet 202 through the guide pipe.

[0053] Furthermore, in order to realize the axial movement or rotational movement of the cleaning device, cleaning position switching devices are respectively provided at both ends of the cleaning agent inflow component 308 and the cleaning agent outflow component 312. In this embodiment, the cleaning position switching device includes an axial action unit (not shown in the figure) for realizing the axial movement of the cleaning device, and a rotation unit for realizing the rotational movement of the cleaning device. For example, the axial action unit can be realized by a telescopic cylinder, and the rotation unit can be realized by a combination of a rotary motor and gears.

[0054] For rotating units, such as Figure 1 or Figure 2 As shown, the rotating unit may include two rotating motors (not shown in the figure), one of which has a first driving gear 307 on its rotating shaft and the other has a second driving gear 311 on its rotating shaft. Furthermore, the first driving gear 307 meshes with the first driven gear 306, and the second driving gear 311 meshes with the second driven gear 310.

[0055] Furthermore, both the first guide tube 308A and the second guide tube 312A are provided with key positions. The first driven gear 306 is movably engaged with the key position of the first guide tube 308A via a keyway, and the second driven gear 310 is movably engaged with the key position of the second guide tube 312A via a keyway. The first driven gear 306 is disposed in the first limiting component 305, and the second driven gear 310 is disposed in the second limiting component 309. It can be understood that, through the above arrangement, the axial action unit can pull the cleaning device to perform axial movement without changing the position of the driven gear, while the driven gear can drive the cleaning device to perform rotational movement when rotating. The gear ratio between the driven gear and the driving gear can be determined by the motor speed and the rotation angle of the cleaning device each time.

[0056] Furthermore, switch valves are provided at both ends of the cleaning agent inflow component 308 and the cleaning agent outflow component 312 to control the flow of the cleaning agent.

[0057] For ease of understanding, this application continues to provide specific implementation examples to describe the operation of the cleaning device in the heat exchanger.

[0058] In a specific example, firstly, the valve on the cleaning agent inflow component 308 side is opened, allowing the cleaning agent to flow into the heat exchange tube to be cleaned through the cleaning agent inflow component 308. Then, the valve on the cleaning agent inflow component 308 side is closed, allowing the cleaning agent to soak inside the heat exchange tube to dissolve the wastewater scale. After a preset time, the valves on the cleaning agent inflow component 308 side and the cleaning agent outflow component 312 side are opened to rinse the heat exchange tube to be cleaned. Preferably, the cleaning agent can be replaced with clean water for rinsing. After rinsing, both valves are closed sequentially. The axial motion unit controls the cleaning agent inflow component 308 to move axially away from the outer surface of the housing 100. After the axial movement ends, the cleaning agent inflow component 308 is rotated by a rotary motor at a certain angle. Preferably, the rotation angle can be determined based on the coverage area of ​​the first guide channel 308B. In this example, the heat exchange tube presents the following... Figure 3 As shown in the distribution diagram, the first guide channel 308B is a fan-shaped guide channel with the central heat exchange tube as the fan center and an angle of 60°. Therefore, in this example, the rotation angle of the cleaning agent flowing into the component 308 is 60° each time. Of course, the specific design shape can be determined by the arrangement of the heat exchange tubes, which will not be elaborated here.

[0059] After rotation, the cleaning agent inflow component 308 is controlled by the axial motion unit to move axially close to the outer surface of the housing 100, so that the cleaning agent inflow component 308 is once again in contact with the outer surface of the housing 100 to complete the switching of the heat exchange tube to be cleaned. It can be understood that the control method of the cleaning agent outflow component 312 is performed by the cleaning position switching device after the control action of the cleaning agent inflow component 308 is completed, so as to ensure that the heat exchange tube 203 covered by the cleaning agent outflow component 312 and the cleaning agent inflow component 308 are always consistent, which will not be elaborated here.

[0060] In another specific example, the valves on both sides can be kept open at all times when flushing the pipes, so that the cleaning agent can continuously flush the heat exchange tubes to be cleaned, thereby achieving the cleaning of the heat exchange tubes. That is, the specific control method can be determined according to the situation, which will not be elaborated here.

[0061] Understandably, the cleaning device provided in this embodiment can switch the heat exchange tube to be cleaned without affecting the heat exchange process. By flexibly controlling the rotation cycle of the cleaning device, the heat exchange tube can be kept in a relatively clean state, avoiding the deposition of microorganisms and / or dirt in the heat exchange tube due to wastewater heat medium, and eliminating the need for frequent disassembly of the heat exchanger. In addition, since the cleaning agent is a fluid, it can be applied to heat exchange tubes of different shapes and structures, making it highly versatile.

[0062] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0063] The above are only some embodiments of this application and do not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A high-efficiency heat exchange device for a pure wastewater system, comprising a box, heat exchange pipes and joint cavities, a plurality of heat exchange pipes are arranged in the box, joint cavities are arranged at both ends of the box and the end heads of the heat exchange pipes are communicated with the corresponding joint cavities, and the joint cavities are connected with corresponding inlet / outlet water pipes, characterized in that, The connector cavities at both ends of the housing are respectively equipped with a cleaning agent inflow component and a cleaning agent outflow component; The cleaning agent inflow component and the cleaning agent outflow component are respectively driven and connected to the corresponding actuation drive mechanism; the actuation drive mechanism can connect or disconnect the cleaning agent inflow component, the heat exchange tube, and the cleaning agent outflow component.

2. The high efficiency heat exchange device of the pure wastewater system according to claim 1, wherein, The motion drive mechanism includes a rotary unit and an axial motion unit; The axial movement unit enables the cleaning agent inflow component and / or the cleaning agent outflow component to move axially, thereby connecting or disconnecting the cleaning agent inflow component-heat exchange tube-cleaning agent outflow component. The rotating unit can drive the detergent inflow component and / or the detergent outflow component to rotate, so that the detergent inflow component and / or the detergent outflow component are connected to different heat exchange tubes.

3. The high efficiency heat exchange device of the pure wastewater system according to claim 2, wherein, The cleaning agent inflow assembly includes a first guide pipe and a first guide channel that are interconnected, wherein the first guide pipe is movably installed in the cleaning device mounting channel; The cleaning device installation channel is located on the connector cavity; The first guide channel can also selectively fit against one end of the outer surface of the housing, so that the inner area of ​​the first guide channel can selectively cover one end of the heat exchange tube to be cleaned. The cleaning agent outflow assembly includes a second guide pipe and a second guide groove that are interconnected. The second guide pipe is movably installed in the cleaning device installation channel. The second guide groove is also selectively attached to the outer surface of the other end of the housing so that the inner area of ​​the second guide groove can selectively cover the other end of the heat exchange tube to be cleaned.

4. The high efficiency heat exchange device of the pure wastewater system according to claim 3, wherein, The rotating unit includes a first rotating motor, a first driving gear mounted on the rotating shaft of the first rotating motor and rotating synchronously with the rotating shaft, and a first driven gear meshing with the first driving gear; The rotating unit further includes a second rotating motor, a second driving gear mounted on the rotating shaft of the second rotating motor and rotating synchronously with the rotating shaft, and a second driven gear meshing with the second driving gear; The first driven gear is slidably engaged with the first guide tube, and the second driven gear is slidably engaged with the second guide tube.

5. The high efficiency heat exchange device of the pure wastewater system according to claim 4, wherein, The rotating unit further includes a first limiting component and a second limiting component; The first driven gear is installed in the first limiting assembly, and the second driven gear is installed in the second limiting assembly.

6. The high efficiency heat exchange device of the pure wastewater system according to claim 5, wherein, The cleaning device installation channel includes a first drainage unit, a first limiting unit, a second drainage unit, and a second limiting unit; The cleaning agent inflow assembly is installed in the connector cavity at one end through the first drainage unit and the first limiting unit, and the cleaning agent outflow assembly is installed in the connector cavity at the other end through the second drainage unit and the second limiting unit. Both the first limiting unit and the second limiting unit are provided with a drainage pipe, which is also connected to the water outlet pipe in a conductive manner.

7. The high efficiency heat exchange device of the pure wastewater system according to claim 6, wherein, The enclosure also contains multiple staggered baffles.

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