Energy-saving heat exchanger with automatic cleaning function

Abstract

The application relates to an energy-saving heat exchanger with an automatic cleaning function, which comprises a shell of an energy-saving heat exchanger, the surface of the shell is fixedly connected with two groups of conveying assemblies, the two groups of conveying assemblies are respectively used for conveying different heat exchange media, the front and back sides of the shell are rotationally connected with driving shafts, the outer portions of the driving shafts are sleeved with traction steel wires, the outer portions of the traction steel wires are slidably connected to the inner walls of the shell, the outer portions of the traction steel wires are fixedly connected with axial sealing blocks, and the outer portions of the axial sealing blocks are in close contact with the inner walls of the shell. In the application, the traction steel wire is pulled to drive the cleaning lifting disc body to displace during cleaning, the sealed state formed by the cooperation of the sealing ring and the axial sealing block is broken, the outer side of the heat exchange tube bundle is scraped and cleaned during the movement of the cleaning lifting disc body, and the efficiency of heat exchange is prevented from being reduced due to the attached waste water impurities outside the pipeline.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, specifically to an energy-saving heat exchanger with an automatic cleaning function. Background Technology

[0002] Heat exchanger technology is a core industrial technology based on the second law of thermodynamics to achieve heat exchange between hot and cold fluids. It primarily achieves heat transfer through conduction and convection, and is mainly divided into three types: direct contact, regenerative, and indirect contact, with the indirect contact type being the most widely used. This technology improves heat transfer efficiency by optimizing flow channels and upgrading materials. New types of equipment, such as plate and spiral wound tubes, can significantly reduce size and are widely used in petrochemical, new energy, and environmental protection fields. It is a key means of industrial energy recovery and temperature control, effectively reducing production energy consumption.

[0003] Based on the core heat exchange logic of heat exchanger technology, energy-saving wastewater heat exchangers have become a specialized application device in the field of environmental protection and energy conservation. Using wastewater as a heat carrier and leveraging its stable temperature characteristics, the heat energy in the wastewater is transferred to a clean heat transfer medium through a partitioned heat exchanger. This is then combined with a heat pump to achieve building heating or cooling. This equipment optimizes the heat exchange structure, increases the contact area between wastewater and the medium, recovers low-grade heat energy from wastewater, significantly reduces the use of fossil fuels, and lowers heating and cooling energy consumption by 80% compared to traditional methods. It also reduces water waste and carbon emissions.

[0004] However, in existing technologies, some heat exchange devices have a large external space in the pipelines and a large amount of wastewater flowing through them, resulting in a high probability of impurities adhering to them, yet they cannot effectively prevent impurities from adhering. Furthermore, there is a lack of automatic and efficient cleaning methods after impurities accumulate, causing wastewater impurities to adhere to the outside of the pipelines for a long time, making it difficult to remove them in a timely manner. This, in turn, reduces the overall heat exchange efficiency of the equipment and affects its stable operation. Summary of the Invention

[0005] The purpose of this invention is to provide an energy-saving heat exchanger with an automatic cleaning function.

[0006] The objective of this invention is achieved through the following technical solution: an energy-saving heat exchanger with automatic cleaning function, comprising a shell of the energy-saving heat exchanger, two sets of conveying components fixedly connected to the surface of the shell, the two sets of conveying components being used to convey different heat exchange media respectively, a drive shaft rotatably connected to both the front and rear sides of the shell, a traction steel wire rope sleeved on the outside of the drive shaft, the outside of the traction steel wire rope being slidably connected to the inner wall of the shell, an axial sealing block fixedly connected to the outside of the traction steel wire rope, and the outside of the axial sealing block being in close contact with the inner wall of the shell, two guide strips fixedly connected to the outside of the axial sealing block and engaging with the inner wall of the shell, a cleaning lifting plate body slidably connected inside the shell, one end of the traction steel wire rope being fixedly connected to the top of the cleaning lifting plate body, a tensioning component fixedly connected to the inner wall of the shell, multiple scraping components fixedly connected to the inner wall of the cleaning lifting plate body, two tube sheets fixedly connected inside the shell, and multiple heat exchange tube bundles fixedly connected to the inner walls of the two tube sheets.

[0007] As a further description of the above technical solution:

[0008] The delivery assembly includes a shell-side medium delivery pipe fixed to the left side of the housing, and another shell-side medium delivery pipe fixedly connected to the right side of the housing. Two tube-side medium delivery pipes are also fixedly connected between the two shell-side medium delivery pipes.

[0009] As a further description of the above technical solution:

[0010] Two bearing support seats are fixedly connected to one side of the drive shaft, and the other end of the bearing support seats is fixedly connected to the surface of the housing. A hand-cranked drive wheel is fixedly connected to the bottom of the drive shaft.

[0011] As a further description of the above technical solution:

[0012] A sealing ring is fixedly connected to the outer side of the cleaning lifting plate, and multiple buffer and shock-absorbing pads are fixedly connected to the bottom of the cleaning lifting plate.

[0013] As a further description of the above technical solution:

[0014] The tensioning assembly includes a fixed top support ring fixedly connected to the inner wall of the housing. Multiple guide slides are slidably connected to the inner wall of the fixed top support ring. An elastic pressure pad that is in close contact with the top of the cleaning lifting plate is fixedly connected to the bottom of the guide slide. A compression return spring is sleeved on the outside of the guide slide. An anti-detachment limiting plate is fixedly connected to the top of the guide slide.

[0015] As a further description of the above technical solution:

[0016] One end of the compression return spring is fixedly connected to one side of the fixed top support ring, and the other end of the compression return spring is fixedly connected to one side of the elastic pressure pad.

[0017] As a further description of the above technical solution:

[0018] The scraping assembly includes a magnetically shielded alloy ring fixedly connected to the inner wall of the cleaning lifting plate. An active magnetic suction block is fixedly connected to the inner wall of the magnetically shielded alloy ring. A central support shaft is fixedly connected to the inner wall of the heat exchange tube bundle. A spiral scraper blade that is in close contact with the inner wall of the heat exchange tube bundle is rotatably connected to the surface of the central support shaft. A driven magnetic suction block is slidably connected to the inner wall of the heat exchange tube bundle, and the outer side of the driven magnetic suction block is slidably connected to the periphery of the spiral scraper blade. The driven magnetic suction block and the active magnetic suction block are magnetically attracted to each other.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the housing is provided with an axial guide groove that is adapted to the guide strip. The axial guide groove extends along the axial direction of the housing, and the guide strip is slidably embedded in the axial guide groove.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] 1. In this invention, a sealing ring cooperates with an axial sealing block, and the guide strip on the outer side of the axial sealing block is embedded in the axial guide groove, creating a slightly sealed space between the cleaning lifting plate and the adjacent tube sheet. The stability of the cleaning lifting plate is maintained by the pressure difference between the inside and outside. During cleaning, pulling the traction steel wire rope moves the cleaning lifting plate, breaking the sealed state. During the movement of the cleaning lifting plate, it scrapes and cleans the outside of the heat exchange tube bundle, preventing wastewater impurities adhering to the outside of the pipes from reducing the heat exchange efficiency.

[0023] 2. In this invention, based on the above-mentioned external cleaning, the cleaning lifting plate moves to drive the magnetic shielding alloy ring and the active magnetic block to move synchronously. The active magnetic block and the driven magnetic block on the spiral scraper on the inner wall of the heat exchange tube bundle are magnetically attracted to each other, which drives the driven magnetic block and the spiral scraper to rotate. During the rotation of the spiral scraper, the inner wall of the heat exchange tube bundle is scraped and cleaned. Combined with the above-mentioned external cleaning of the heat exchange tube bundle, the efficiency of heat exchange is further guaranteed.

[0024] 3. In this invention, the fixed top support ring of the tensioning assembly provides guiding support for the guide slide column. Under normal conditions, the compression return spring is in a naturally extended state, and the elastic pressure pad is in close contact with the cleaning lifting plate. During cleaning, the displacement of the cleaning lifting plate compresses the elastic pressure pad, pushing the guide slide column to slide and compressing the compression return spring to store elastic potential energy. Subsequently, the compression return spring releases the elastic potential energy to generate thrust, providing initial power for the movement of the cleaning lifting plate, and ultimately providing sufficient driving force for the start of the cleaning lifting plate movement, ensuring the smooth start of the cleaning action. Attached Figure Description

[0025] Figure 1 This is an overall schematic diagram of an energy-saving heat exchanger with automatic cleaning function according to the present invention;

[0026] Figure 2 This is a schematic diagram of the heat exchange tube bundle structure of an energy-saving heat exchanger with automatic cleaning function according to the present invention;

[0027] Figure 3 This is a schematic diagram of the axial sealing block structure of an energy-saving heat exchanger with automatic cleaning function according to the present invention;

[0028] Figure 4 This is a schematic diagram of the traction steel wire rope structure of an energy-saving heat exchanger with automatic cleaning function according to the present invention;

[0029] Figure 5 This is a schematic diagram of the shell structure of an energy-saving heat exchanger with automatic cleaning function according to the present invention;

[0030] Figure 6 This is a schematic diagram of the cleaning lifting plate structure of an energy-saving heat exchanger with automatic cleaning function according to the present invention;

[0031] Figure 7 This is a schematic diagram of the fixed top support ring structure of an energy-saving heat exchanger with automatic cleaning function according to the present invention;

[0032] Figure 8 This is a schematic diagram of the spiral scraper structure of an energy-saving heat exchanger with automatic cleaning function according to the present invention.

[0033] Label Explanation:

[0034] 1. Shell; 2. Shell-side medium delivery pipe; 3. Tube-side medium delivery pipe; 4. Bearing support seat; 5. Drive shaft; 6. Hand-cranked drive wheel; 7. Traction wire rope; 8. Axial guide groove; 9. Axial sealing block; 10. Guide strip; 11. Cleaning lifting plate; 12. Sealing ring; 13. Buffer and shock-absorbing pad; 14. Fixed top support ring; 15. Guide slide column; 16. Elastic compression pad; 17. Compression return spring; 18. Anti-detachment limiting plate; 19. Magnetic shielding alloy ring; 20. Active magnetic suction block; 21. Tube sheet; 22. Heat exchanger tube bundle; 23. Central support shaft; 24. Spiral scraper; 25. Driven magnetic suction block. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0036] like Figures 1 to 8 The illustration shows an embodiment of an energy-saving heat exchanger with an automatic cleaning function provided by the present invention. It includes a shell 1 for the energy-saving heat exchanger, which houses and supports various components, providing an installation foundation for the overall operation of the equipment. Two sets of conveying assemblies are fixedly connected to the surface of the shell 1. These two sets of conveying assemblies are used to convey different heat exchange media, respectively, to achieve stable transmission of the shell-side medium and the tube-side medium, ensuring smooth entry and exit of the medium from the equipment. The conveying assemblies include a shell-side medium conveying pipe 2 fixedly attached to the left side of the shell 1, which transmits the shell-side medium and provides a channel for the shell-side medium to enter or exit the shell 1. Another shell-side medium conveying pipe 2 is fixedly connected to the right side of the shell 1. Two tube-side medium conveying pipes 3 are also fixedly connected between the two shell-side medium conveying pipes 2, which transmit the tube-side medium and provide a channel for the tube-side medium to enter or exit the shell 1.

[0037] Both the front and rear sides of the housing 1 are rotatably connected to drive shafts 5. Drive shafts 5 are used to transmit the rotational force of hand-cranked drive wheel 6, driving the high-strength traction steel wire rope 7 to move synchronously. Two bearing support seats 4 are fixedly connected to one side of drive shaft 5. The bearing support seats 4 are used to provide stable support for drive shaft 5, ensuring smooth rotation of drive shaft 5 and accurate transmission of the pulling action of traction steel wire rope 7. The other end of bearing support seat 4 is fixedly connected to the surface of housing 1. A hand-cranked drive wheel 6 is fixedly connected to the bottom of drive shaft 5. The hand-cranked drive wheel 6 is used for the operator to apply force to drive drive shaft 5 to rotate, thereby realizing the reset control of cleaning lifting plate 11. Traction steel wire rope 7 is sleeved on the outside of drive shaft 5. Traction steel wire rope 7 is used to transmit the force of drive shaft 5 and operator, driving cleaning lifting plate 11 and axial sealing block 9 to move synchronously. The outside of traction steel wire rope 7 is slidably connected to the inner wall of housing 1.

[0038] An axial sealing block 9 is fixedly connected to the outside of the traction wire rope 7. The axial sealing block 9 is used to seal the inside of the housing 1 and forms a slightly sealed space with the sealing ring 12. The outside of the axial sealing block 9 is in close contact with the inner wall of the housing 1. Two guide strips 10 are fixedly connected to the outside of the axial sealing block 9 and engage with the inner wall of the housing 1. The guide strips 10 are used to embed into the axial guide grooves 8 to further improve the stability of the sealed space and avoid pressure imbalance. The inner wall of the housing 1 has axial guide grooves 8 that are adapted to the guide strips 10. The axial guide grooves 8 are used to provide limiting and installation space for the guide strips 10 and ensure that the guide strips 10 are stably embedded to enhance the sealing effect. The axial guide grooves 8 extend along the axial direction of the housing 1 and the guide strips 10 are slidably embedded in the axial guide grooves 8.

[0039] The cleaning lifting plate 11 is slidably connected inside the shell 1. The cleaning lifting plate 11 is used to move during the cleaning process to scrape and clean the outside of the heat exchange tube bundle 22, and at the same time drive the scraping component to move synchronously. One end of the traction steel wire rope 7 is fixedly connected to the top of the cleaning lifting plate 11. A sealing ring 12 is fixedly connected to the outside of the cleaning lifting plate 11. The sealing ring 12 is used to ensure that a slightly sealed space is formed between the cleaning lifting plate 11 and the adjacent tube sheet 21, and achieves a sealing effect in conjunction with the axial sealing block 9. Multiple buffer shock-absorbing pads 13 are fixedly connected to the bottom of the cleaning lifting plate 11. The buffer shock-absorbing pads 13 are used to avoid rigid collision between the cleaning lifting plate 11 and the tube sheet 21, and ensure the integrity of the equipment structure.

[0040] A tensioning assembly is fixedly connected to the inner wall of the housing 1. The tensioning assembly provides guiding support and elastic potential energy reserve for the cleaning lifting plate 11, helps maintain the stability of the cleaning lifting plate 11 and ensures smooth start of the cleaning operation. The tensioning assembly includes a fixed top support ring 14 fixedly connected to the inner wall of the housing 1. The fixed top support ring 14 provides guiding support for the guide slide column 15, ensuring that the guide slide column 15 slides along a fixed trajectory. Multiple guide slide columns 15 are slidably connected to the inner wall of the fixed top support ring 14. The guide slide columns 15 transmit the force of the elastic pressure pad 16, driving the compression return spring 17 to compress or extend. The bottom of the guide slide column 15 is fixedly connected to an elastic pressure pad that is in close contact with the top of the cleaning lifting plate 11. The elastic pressure pad 16 is used to help maintain the stability of the cleaning lifting plate 11 and transmit the squeezing force when the cleaning lifting plate 11 is displaced. The guide slide column 15 is fitted with a compression return spring 17. The compression return spring 17 is used to store and release elastic potential energy to provide initial power for the movement of the cleaning lifting plate 11. One end of the compression return spring 17 is fixedly connected to one side of the fixed top support ring 14, and the other end of the compression return spring 17 is fixedly connected to one side of the elastic pressure pad 16. The top of the guide slide column 15 is fixedly connected with an anti-detachment limiting piece 18. The anti-detachment limiting piece 18 is used to limit the sliding stroke of the guide slide column 15 and prevent the guide slide column 15 from detaching from the inner wall of the fixed top support ring 14.

[0041] Multiple scraping components are fixedly connected to the inner wall of the cleaning lifting plate 11. The scraping components are used to scrape and clean the inner wall of the heat exchange tube bundle 22, and work with the cleaning lifting plate 11 to complete the synchronous cleaning of the inner and outer walls. The scraping components include a magnetic shielding alloy ring 19 fixedly connected to the inner wall of the cleaning lifting plate 11. The magnetic shielding alloy ring 19 is used to fix the active magnetic suction block 20, ensuring that the active magnetic suction block 20 is installed stably and plays a magnetic attraction role. The active magnetic suction block 20 is fixedly connected to the inner wall of the magnetic shielding alloy ring 19. The active magnetic suction block 20 is used to form a magnetic attraction with the driven magnetic suction block 25, driving the driven magnetic suction block 25 and the spiral scraper 24 to move synchronously.

[0042] A central support shaft 23 is fixedly connected to the inner wall of the heat exchange tube bundle 22. The central support shaft 23 provides rotational support for the spiral scraper 24, ensuring that the spiral scraper 24 rotates stably to achieve inner wall cleaning. The spiral scraper 24, which is in close contact with the inner wall of the heat exchange tube bundle 22, is rotatably connected to the surface of the central support shaft 23. The spiral scraper 24 is used to scrape and clean the inner wall of the heat exchange tube bundle 22 during rotation, removing impurities attached to the inner wall. A driven magnetic block 25 is slidably connected to the inner wall of the heat exchange tube bundle 22. The driven magnetic block 25 is used to respond to the magnetic attraction of the active magnetic block 20, driving the spiral scraper 24 to rotate synchronously. The outer side of the driven magnetic block 25 is slidably connected to the periphery of the spiral scraper 24, and the driven magnetic block 25 and the active magnetic block 20 are magnetically attracted to each other.

[0043] The shell 1 has two tube sheets 21 fixedly connected inside. The tube sheets 21 are used to fix the heat exchange tube bundles 22 and provide installation support for the heat exchange tube bundles 22. At the same time, they cooperate with the cleaning lifting plate 11 to form a closed space. Multiple heat exchange tube bundles 22 are fixedly connected to the inner walls of the two tube sheets 21. The heat exchange tube bundles 22 are the core heat exchange components and are used to realize the heat transfer between the shell-side medium and the tube-side medium, so as to achieve the energy-saving effect of waste heat recovery and utilization.

[0044] Working Principle: Under normal conditions, the shell-side medium and the tube-side medium enter the equipment through their respective delivery pipes. The heat exchange tube bundle 22 serves as the core heat exchange component, enabling heat transfer between the two media and achieving energy-saving effects through waste heat recovery. At this time, the sealing ring 12 ensures a slightly sealed space between the cleaning lifting plate 11 and the adjacent tube sheet 21. Combined with the sealing effect of the axial sealing block 9, the pressure difference between the inside and outside keeps the cleaning lifting plate 11 stable, preventing displacement and ensuring smooth heat exchange. The guide strip 10 on the outside of the axial sealing block 9 is embedded in the axial guide groove 8, further enhancing the stability of the sealed space and preventing pressure imbalance. In the tensioning assembly, the fixed top support ring 14 provides guiding support for the guide slide column 15, the compression return spring 17 is in a naturally extended state, and the elastic pressure pad 16 is tightly fitted with the cleaning lifting plate 11, both assisting in maintaining the stability of the cleaning lifting plate 11 and reserving elastic potential energy for subsequent cleaning actions. In the scraping assembly, the magnetic shielding alloy ring 19 serves to fix the active magnetic block 20. The active magnetic block 20 and the driven magnetic block 25 on the spiral scraper 24 inside the heat exchange tube bundle 22 maintain magnetic attraction. The spiral scraper 24 forms a close fit with the inner wall of the heat exchange tube bundle 22 through the central support shaft 23, guiding the flow of the medium.

[0045] When impurities adhere to the surface and inner wall of the heat exchange tube bundle 22, affecting heat exchange efficiency, an automatic cleaning process needs to be initiated. First, the traction steel cable 7 is pulled outwards, causing the cleaning lifting plate 11 to move synchronously. At this time, the cleaning lifting plate 11 compresses the elastic clamping pad 16, which pushes the guide slide column 15 along the inner wall of the fixed top support ring 14, thereby compressing the compression return spring 17 and storing elastic potential energy. Simultaneously, the traction steel cable 7 moves the axial sealing block 9 and the guide strip 10, then rotates the guide strip 10 to disengage from the axial guide groove 8, breaking the original slightly sealed space, allowing external air to enter the equipment, and eliminating the pressure difference. Under the combined action of the thrust generated by the release of elastic potential energy from the compression return spring 17 and the weight of the cleaning lifting plate 11 itself, the cleaning lifting plate 11 moves slowly. The buffer and shock-absorbing pad 13 effectively prevents rigid collisions between the cleaning lifting plate 11 and the tube sheet 21, ensuring the integrity of the equipment structure. During the movement of the cleaning lifting plate 11, the magnetic shielding alloy ring 19 and the active magnetic suction block 20 move synchronously. Due to the magnetic attraction between the active magnetic suction block 20 and the driven magnetic suction block 25, the driven magnetic suction block 25 moves synchronously with the movement of the active magnetic suction block 20, thereby driving the spiral scraper 24 to rotate around the central support shaft 23. During the rotation of the spiral scraper 24, the inner wall of the heat exchange tube bundle 22 is scraped and cleaned. At the same time, the outer side of the heat exchange tube bundle 22 is scraped and cleaned during the movement of the cleaning lifting plate 11, so as to realize the synchronous removal of impurities on the inner and outer walls of the heat exchange tube bundle 22, ensuring the cleanliness of the heat exchange area and ensuring stable heat exchange efficiency.

[0046] After cleaning, the hand-cranked drive wheel 6 is rotated, which drives the drive shaft 5 to rotate. The drive shaft 5 pulls the cleaning lifting plate 11 in the opposite direction via the traction steel wire rope 7, causing each component to gradually reset. The compression return spring 17 returns to its natural extended state under the tension, and the elastic pressing pad 16 re-fits tightly with the cleaning lifting plate 11. At the same time, the axial sealing block 9 and the guide strip 10 move with the traction steel wire rope 7. The guide strip 10 is rotated to re-embed itself into the axial guide groove 8, restoring the sealing function of the axial sealing block 9. A slightly sealed space is formed again between the cleaning lifting plate 11 and the tube sheet 21, and the cleaning lifting plate 11 remains stable by means of the internal and external pressure difference. At this time, sewage and heat exchange medium are normally introduced through the conveying pipeline, and the equipment resumes its heat exchange working state. The sewage will naturally carry away the impurities cleaned during the flow process, without the need to add additional cleaning medium, achieving energy-saving and efficient continuous operation. The bearing support 4 provides stable support for the drive shaft 5, ensuring the smoothness of the drive shaft 5 during rotation and guaranteeing the accurate transmission of the pulling action of the traction steel wire rope 7. The overall structure achieves automatic cleaning through mechanical transmission and magnetic attraction, without the need for additional power drive, further improving the energy efficiency and practicality of the equipment.

Claims

1. An energy-saving heat exchanger with automatic cleaning function, comprising a shell (1) of an energy-saving heat exchanger, characterized in that: Two sets of conveying assemblies are fixedly connected to the surface of the housing (1). The two sets of conveying assemblies are used to convey different heat exchange media. Drive shafts (5) are rotatably connected to both the front and rear sides of the housing (1). A traction steel wire rope (7) is sleeved on the outside of the drive shaft (5). The outside of the traction steel wire rope (7) is slidably connected to the inner wall of the housing (1). An axial sealing block (9) is fixedly connected to the outside of the traction steel wire rope (7), and the outside of the axial sealing block (9) is in close contact with the inner wall of the housing (1). There are two guide strips (10) that are fixedly connected to the inner wall of the shell (1) externally. A cleaning lifting plate (11) is slidably connected inside the shell (1). One end of the traction steel wire rope (7) is fixedly connected to the top of the cleaning lifting plate (11). A tensioning assembly is fixedly connected to the inner wall of the shell (1). Multiple scraping assemblies are fixedly connected to the inner wall of the cleaning lifting plate (11). Two tube sheets (21) are fixedly connected inside the shell (1). Multiple heat exchange tube bundles (22) are fixedly connected to the inner walls of the two tube sheets (21). The tensioning assembly includes a fixed top support ring (14) fixedly connected to the inner wall of the housing (1). The inner wall of the fixed top support ring (14) is slidably connected with a plurality of guide slides (15). The bottom of the guide slides (15) is fixedly connected with an elastic pressure pad (16) that is in close contact with the top of the cleaning lifting plate (11). The outside of the guide slides (15) is fitted with a compression return spring (17). The top of the guide slides (15) is fixedly connected with an anti-detachment limiting piece (18). One end of the compression return spring (17) is fixedly connected to one side of the fixed top support ring (14), and the other end of the compression return spring (17) is fixedly connected to one side of the elastic pressure pad (16). The inner wall of the housing (1) is provided with an axial guide groove (8) adapted to the guide strip (10). The axial guide groove (8) extends along the axial direction of the housing (1), and the guide strip (10) is slidably embedded in the axial guide groove (8). Pull the traction wire rope (7) outward, and the traction wire rope (7) will drive the cleaning lifting plate (11) to move synchronously. At this time, the cleaning lifting plate (11) will squeeze the elastic pressing pad (16), and the elastic pressing pad (16) will push the guide slide column (15) to slide along the inner wall of the fixed top support ring (14), thereby compressing the compression return spring (17) and storing elastic potential energy. At the same time, the traction wire rope (7) will drive the axial sealing block (9) and the guide strip (10) to move. Then rotate the guide strip (10) to make it disengage from the limit of the axial guide groove (8). The original slightly sealed space is broken, and external air enters the equipment. The pressure difference disappears. Under the combined action of the thrust generated by the release of elastic potential energy of the compression return spring (17) and the gravity of the cleaning lifting plate (11) itself, the cleaning lifting plate (11) moves slowly. After cleaning, the cleaning lifting plate (11) is pulled in the opposite direction by the traction wire rope (7), so that each component is gradually reset. The compression reset spring (17) returns to its natural extension state under the action of tension, and the elastic pressing pad (16) is tightly attached to the cleaning lifting plate (11) again. At the same time, the axial sealing block (9) and the guide strip (10) move with the traction wire rope (7), and the guide strip (10) is rotated to make it re-embed into the axial guide groove (8), restoring the sealing function of the axial sealing block (9), and a slightly sealed space is formed again between the cleaning lifting plate (11) and the tube plate (21).

2. An energy-saving heat exchanger with automatic cleaning function according to claim 1, characterized in that: The two sets of conveying components include a shell-side medium conveying pipe (2) fixed to the left side of the housing (1), and another shell-side medium conveying pipe (2) fixedly connected to the right side of the housing (1). Two tube-side medium conveying pipes (3) are also fixedly connected between the two shell-side medium conveying pipes (2).

3. An energy-saving heat exchanger with automatic cleaning function according to claim 1, characterized in that: Two bearing support seats (4) are fixedly connected to one side of the drive shaft (5), and the other end of the bearing support seat (4) is fixedly connected to the surface of the housing (1). A hand-cranked drive wheel (6) is fixedly connected to the bottom of the drive shaft (5).

4. An energy-saving heat exchanger with automatic cleaning function according to claim 1, characterized in that: A sealing ring (12) is fixedly connected to the outside of the cleaning lifting plate (11), and multiple buffer shock-absorbing pads (13) are fixedly connected to the bottom of the cleaning lifting plate (11).

5. An energy-saving heat exchanger with automatic cleaning function according to claim 1, characterized in that: The scraping assembly includes a magnetically shielded alloy ring (19) fixedly connected to the inner wall of the cleaning lifting plate (11). An active magnetic suction block (20) is fixedly connected to the inner wall of the magnetically shielded alloy ring (19). A central support shaft (23) is fixedly connected to the inner wall of the heat exchange tube bundle (22). A spiral scraper (24) that is in close contact with the inner wall of the heat exchange tube bundle (22) is rotatably connected to the surface of the central support shaft (23). A driven magnetic suction block (25) is slidably connected to the inner wall of the heat exchange tube bundle (22), and the outer side of the driven magnetic suction block (25) is slidably connected to the periphery of the spiral scraper (24). The driven magnetic suction block (25) and the active magnetic suction block (20) are magnetically attracted to each other.

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