Energy-saving heat exchange device

Abstract

The invention relates to an energy-saving heat exchange device which comprises a first water tank, a plurality of finned tubes are evenly arranged between the first water tank and a second water tank, the finned tubes are vertically arranged, a plurality of corrugated plates are evenly connected to the outer sides of the finned tubes in a sleeving mode, a liquid separation cavity is formed in the inner side of the second water tank in a concave mode, and the top ends of the finned tubes extend into the liquid separation cavity. An elastic sealing ring is arranged at the top end of the finned tube, and a liquid separation cavity and a movable groove are formed in the second water tank in a concave mode. By using the descaling mechanism in the finned tube, the inner wall of the finned tube can be cleaned without detaching the device, the heat exchange efficiency is prevented from being reduced due to physical deposition and chemical crystal accumulation on the heat transfer wall surface of the finned tube, and the heat exchange efficiency is improved, so that the frequency of heat exchange of a fluid medium through the device can be reduced, and the heat exchange efficiency is improved. Therefore, energy conservation is realized.

Description

Technical Field

[0001] The present invention belongs to the field of energy-saving heat exchange, and specifically relates to an energy-saving heat exchange device. Background Art

[0002] As the core unit of an industrial heat transfer system, heat exchange devices are widely used in fields such as petrochemical industry, power production, heating, ventilation, air conditioning, and food processing. They achieve energy conversion through heat transfer between fluid media, and their operating efficiency directly affects the thermodynamic efficiency and energy consumption level of industrial equipment. However, during long-term operation, the fouling problem on the heat transfer surface caused by the physical properties of the medium and working conditions has become a key technical bottleneck restricting the performance improvement of heat exchange devices.

[0003] The formation of fouling stems from the physical deposition and chemical crystallization of impurities in the fluid medium on the heat transfer wall surface. When the fluid velocity is lower than the critical Reynolds number, soluble salts (such as calcium carbonate and calcium sulfate) precipitate and crystallize due to the change in solubility caused by the temperature gradient, forming a dense water scale layer; at the same time, the inertial deposition of biological slime and suspended particles formed by the growth of microorganisms further exacerbates the compound superposition effect of the fouling layer. Experimental data shows that a 0.5-mm-thick carbonate fouling layer can reduce the overall heat transfer coefficient by 30% - 40%, resulting in a non-linear decay of the heat exchange efficiency under the same working conditions. More seriously, the presence of the fouling layer will significantly increase the flow channel resistance, forcing the power of the circulation pump to increase by 15% - 25%, causing a stepwise increase in system energy consumption. Although mechanical scraping can remove hard fouling, the shutdown losses caused by frequent disassembly can reach 8% - 12% of the annual operating time, and it is easy to cause irreversible mechanical damage to precision structures such as corrugated plates and finned tubes. Therefore, an energy-saving heat exchange device is proposed. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the following technical problems existing in the prior art: Although mechanical scraping can remove hard fouling, the shutdown losses caused by frequent disassembly can reach 8% - 12% of the annual operating time, and it is easy to cause irreversible mechanical damage to precision structures such as corrugated plates and finned tubes.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: an energy-saving heat exchange device, including a first water tank, a plurality of finned tubes are evenly arranged between the first water tank and the second water tank, the finned tubes are arranged vertically, and a plurality of corrugated plates are evenly sleeved on the outer side of the finned tubes. A liquid separation cavity is recessed inside the second water tank, the top end of the finned tube extends into the liquid separation cavity, and an elastic sealing ring is arranged at the top end of the finned tube. A liquid separation cavity and a movable groove are recessed on the second water tank, and a plurality of movable channels are arranged between the liquid separation cavity and the movable groove. A sealing plate is movably inserted into the movable channel, one end of the sealing plate is located in the liquid separation cavity and the other end is located in the movable groove. The sealing plate is movably connected to the elastic sealing ring, and a spring is connected between the sealing plate and the inner wall of the movable groove. The sealing plate is a square column, and a control plate is slidably connected in the movable groove. The control plate is movably connected to the sealing plate;

[0007] A descaling mechanism is arranged inside the finned tube.

[0008] As a preferred technical solution of the energy-saving heat exchange device, a plurality of control holes I are evenly recessed on the control plate, the control holes I correspond to the sealing plates one by one, and a spring is connected between the inner wall of the movable groove and the sealing plate;

[0009] When the sealing plate is facing the control hole I, the sealing plate is no longer restricted by the control plate, and the spring will push the sealing plate into the control hole I, so that the sealing plate leaves the elastic sealing ring and the finned tube, and the inner cavity of the finned tube is communicated with the liquid separation cavity, and the fluid medium in the liquid separation cavity can enter the finned tube.

[0010] As a preferred technical solution of the energy-saving heat exchange device, an irregular block is arranged on each of the two sides inside the control hole I, and the opposite surfaces of the two irregular blocks are arc-shaped surfaces. The sealing plate is movably connected to the arc-shaped surface of the irregular block;

[0011] The irregular block facilitates the sealing plate located inside the irregular block to move out with the help of the arc-shaped surface of the irregular block when the control plate moves.

[0012] As a preferred technical solution of the energy-saving heat exchange device, a positioning groove is recessed at each of the two ends of the liquid separation cavity, the positioning groove is movably inserted with a control rod, a plurality of control arc-shaped seats are arranged at intervals on the inner top wall of the liquid separation cavity, a diversion structure is arranged on the control rod, and the descaling mechanism is movably connected to the diversion structure;

[0013] The diversion structure includes a diversion cylinder, an elastic insertion cylinder, a control seat, a first control hole, a connecting arm, an arc plate, and a first restraint ring. The control rod is provided with a first control hole, and two first restraint rings are arranged on the first control hole. The connecting arms are movably inserted into the first restraint rings. An arc plate is connected between the two connecting arms. An elastic block one is arranged at the bottom end of the control arc seat. The arc plate is movably connected with the elastic block one. The bottom end of the connecting arm is provided with a diversion cylinder, and the bottom end of the diversion cylinder is provided with an elastic insertion cylinder. The elastic insertion cylinder is movably inserted with an elastic sealing ring;

[0014] After the elastic insertion cylinder is inserted into the elastic sealing ring, the vertical cylinder extends into the elastic insertion cylinder, so that the fluid medium in the liquid separation cavity can enter the vertical cylinder through the diversion cylinder and the elastic insertion cylinder, and then enter the rotating cylinder through the vertical cylinder.

[0015] As a preferred technical solution of the energy-saving heat exchange device, a second restraint ring is arranged at one end of the control board. The second restraint ring is rotatably connected with a connecting rod. One end of the connecting rod is provided with a connecting sleeve. The connecting sleeve is threadedly connected with the control rod. A second control hole is also recessed on the control board. The length of the second control hole is equal to the sum of the length of the first control hole and the interval length between two adjacent first control holes. The second control hole corresponds to the position of the control seat;

[0016] When the diversion cylinder moves to the corresponding position of a specific finned tube, the second control hole corresponds to the sealing plate movably connected with the specific finned tube, and the function of the second control hole is the same as that of the first control hole.

[0017] As a preferred technical solution of the energy-saving heat exchange device, a vertical cylinder is arranged at the top of the finned tube. The vertical cylinder is connected with the inner wall of the finned tube through a connecting frame. The rotating cylinder is rotatably connected with the vertical cylinder through an inner cylinder arranged at the top. The inner cavity of the vertical cylinder is communicated with the inner cavity of the rotating cylinder.

[0018] As a preferred technical solution of the energy-saving heat exchange device, the descaling mechanism includes a rotating cylinder, a vertical cylinder, a horizontal cylinder, a sleeve, and a spray head. A worm gear is arranged at the bottom end of the rotating cylinder. The bottom end of the worm gear is rotatably connected with a bottom seat. The bottom seat is arranged on the bottom wall of the inner cavity of the first water tank;

[0019] When the fluid medium reaches the first water tank through the finned tube, it can drive the worm gear to rotate, and the worm gear drives the rotating cylinder to rotate.

[0020] As a preferred technical solution of the energy-saving heat exchange device, several horizontal cylinders are evenly arranged on the circumferential surface of the rotating cylinder. An attachment ring is sleeved and fixed on the outer side of one end of the horizontal cylinder. A cleaning ring is arranged on one side of the attachment ring. An inner ring is fixed on the inner side of the other end of the sleeve. A spray head is arranged on the horizontal cylinder;

[0021] The rotating cylinder drives the horizontal cylinder and the cleaning ring to rotate. The centrifugal force causes the cleaning ring to be thrown out against the elastic force of the elastic member, so that the cleaning ring contacts the inner wall of the finned tube. During the rotation of the cleaning ring, the physical deposition and chemical crystallization on the inner wall of the finned tube are scraped off.

[0022] As a preferred technical solution of the energy-saving heat exchange device, a limiting ring is provided at one end of the horizontal cylinder, and an elastic member is connected between the limiting ring of the horizontal cylinder and the inner ring;

[0023] The elastic member pushes the inner ring so that the sleeve pulls the cleaning ring away from the inner wall of the finned tube.

[0024] The beneficial effects of the energy-saving heat exchange device of the present invention: By using the descaling mechanism in the finned tube, the heat transfer wall surface of the finned tube can be cleaned without disassembling the device, avoiding the reduction of heat exchange efficiency caused by the accumulation of physical deposition and chemical crystallization on the heat transfer wall surface of the finned tube, improving the heat exchange efficiency, thereby reducing the frequency of heat exchange of the fluid medium through the device, and thus achieving energy saving;

[0025] By using the cooperation of the diversion structure and the control board, the restraint ring two, the connecting rod and the connecting sleeve on the control board are controlled to drive the control rod to move, so that the diversion cylinder moves to the corresponding position of the finned tube to be cleaned, and then the inner cavity wall surface of the determined finned tube can be cleaned, and the damage of the device structure caused by the cleaning ring always contacting the inner wall of the finned tube can also be avoided. Brief Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the positional relationship structure of the present invention and;

[0029] Figure 3 It is a schematic diagram of the structure of the diversion structure of the present invention Figure 1 ;

[0030] Figure 4 It is a front view structure diagram of the present invention;

[0031] Figure 5 It is a schematic diagram of the positional relationship structure between the present invention and;

[0032] Figure 6 It is a schematic diagram of the positional relationship structure between the present invention and;

[0033] Figure 7 For the present invention Figure 1 Partial enlarged structural schematic diagram of part A in the present invention;

[0034] Figure 8 For the present invention Figure 1 Partial enlarged structural schematic diagram of part B in the present invention;

[0035] Figure 9 For the present invention Figure 1 Partial enlarged structural schematic diagram of part C in the present invention;

[0036] Figure 10 For the present invention Figure 1 Partial enlarged structural schematic diagram of part D in the present invention;

[0037] Figure 11 For the present invention Figure 9 Partial enlarged structural schematic diagram of part E in the present invention;

[0038] Figure 12 Top view structural schematic diagram of the cleaning ring of the present invention.

[0039] Reference numerals: 1, water tank one; 2, finned tube; 3, corrugated plate; 4, water tank two; 5, connecting rod; 6, control board; 7, liquid distribution cavity; 8, elastic sealing ring; 9, movable groove; 10, sealing plate; 11, special-shaped block; 12, control hole one; 13, connecting arm; 14, arc plate; 15, restraint ring one; 16, restraint ring two; 18, connecting sleeve; 19, control rod; 20, limiting shaft; 21, control arc seat; 22, elastic block one; 23, control seat; 24, rotating cylinder; 25, vertical cylinder; 26, elastic sealing ring; 27, elastic insertion cylinder; 28, blocking ring; 29, diversion cylinder; 30, horizontal cylinder; 31, cleaning ring; 32, nozzle; 33, worm gear; 34, bottom seat; 35, sleeve; 36, built-in ring; 37, elastic member; 38, attachment ring; 40, control hole two. Detailed embodiments

[0040] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed embodiments of the present invention with reference to the accompanying drawings of the specification.

[0041] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0042] Second, the "one embodiment" or "embodiment" referred to herein means a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0043] Thirdly, the present invention is described in detail in conjunction with schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0044] As Figures 1 to 12 shown, the present invention provides an energy-saving heat exchange device, including a first water tank 1. A plurality of finned tubes 2 are evenly arranged between the first water tank 1 and the second water tank 4. The finned tubes 2 are vertically arranged. A plurality of corrugated plates 3 are evenly sleeved outside the finned tubes 2. A liquid separation cavity 7 is recessed inside the second water tank 4. The top end of the finned tube 2 extends into the liquid separation cavity 7. An elastic sealing ring 8 is arranged at the top end of the finned tube 2. A liquid separation cavity 7 and a movable groove 9 are recessed in the second water tank 4. A plurality of movable channels are arranged between the liquid separation cavity 7 and the movable groove 9. A sealing plate 10 is movably inserted into the movable channels. One end of the sealing plate 10 is located inside the liquid separation cavity 7 and the other end is located inside the movable groove 9. The sealing plate 10 is movably connected to the elastic sealing ring 8. A spring is connected between the sealing plate 10 and the inner wall of the movable groove 9. The sealing plate 10 is a square column. A control plate 6 is slidably connected inside the movable groove 9. The control plate 6 is movably connected to the sealing plate 10;

[0045] A descaling mechanism is arranged inside the finned tube 2.

[0046] The finned tube 2 contains a fluid medium. The second water tank 4 is connected with a liquid inlet pipe, and the first water tank 1 is connected with a liquid discharge pipe.

[0047] As a preferred technical solution of the energy-saving heat exchange device, a plurality of control holes 12 are evenly recessed on the control plate 6. The control holes 12 correspond to the sealing plates 10 one by one. A spring is connected between the inner wall of the movable groove 9 and the sealing plate 10;

[0048] When the sealing plate 10 faces the control hole 12, the sealing plate 10 is no longer restricted by the control plate 6, and the spring will push the sealing plate 10 into the control hole 12, so that the sealing plate 10 leaves the elastic sealing ring 8 and the finned tube 2, and the inner cavity of the finned tube 2 is communicated with the liquid separation cavity 7, and the fluid medium in the liquid separation cavity 7 can enter the finned tube 2.

[0049] As a preferred technical solution of the energy-saving heat exchange device, a special-shaped block 11 is respectively arranged on both sides inside the control hole 12. The opposite surfaces of the two special-shaped blocks 11 are arc-shaped surfaces, and the sealing plate 10 is movably connected to the arc-shaped surface of the special-shaped block 11;

[0050] The special-shaped block 11 facilitates the movement of the control board 6. When the control board 6 moves, the sealing plate 10 located inside the special-shaped block 11 can be moved out with the help of the arc-shaped surface of the special-shaped block 11.

[0051] As a preferred technical solution of the energy-saving heat exchange device, a positioning groove is respectively recessed at both ends of the liquid distribution cavity 7. The positioning groove is movably inserted with the control rod 19. A plurality of control arc-shaped seats 21 are arranged at intervals on the inner top wall of the liquid distribution cavity 7. A diversion structure is arranged on the control rod 19, and the descaling mechanism is movably connected to the diversion structure;

[0052] The diversion structure includes a diversion cylinder 29, an elastic insertion cylinder 27, a control seat 23, a control hole 12, a connecting arm 13, an arc-shaped plate 14 and a restraint ring 15. A control hole 12 is arranged on the control rod 19. Two restraint rings 15 are arranged on the control hole 12. The connecting arm 13 is movably inserted into the restraint ring 15. An arc-shaped plate 14 is connected between the two connecting arms 13. An elastic block 22 is arranged at the bottom end of the control arc-shaped seat 21. The arc-shaped plate 14 is movably connected to the elastic block 22. The bottom end of the connecting arm 13 is provided with a diversion cylinder 29. The bottom end of the diversion cylinder 29 is provided with an elastic insertion cylinder 27. The elastic insertion cylinder 27 is movably inserted with the elastic sealing ring 26;

[0053] After the elastic insertion cylinder 27 is inserted into the elastic sealing ring 26, the vertical cylinder 25 extends into the elastic insertion cylinder 27, so that the fluid medium in the liquid distribution cavity 7 can enter the vertical cylinder 25 through the diversion cylinder 29 and the elastic insertion cylinder 27, and then enter the rotating cylinder 24 through the vertical cylinder 25.

[0054] As a preferred technical solution of the energy-saving heat exchange device, a restraint ring 16 is arranged at one end of the control board 6. The restraint ring 16 is rotatably connected with a connecting rod 5. One end of the connecting rod 5 is provided with a connecting sleeve 18. The connecting sleeve 18 is threadedly connected with the control rod 19. A control hole 40 is also recessed on the control board 6. The length of the control hole 40 is equal to the sum of the length of the control hole 12 and the interval length between two adjacent control holes 12. The position of the control hole 40 corresponds to that of the control seat 23;

[0055] When the diversion cylinder 29 moves to the corresponding position of the specific finned tube 2, the control hole 40 corresponds to the sealing plate 10 movably connected to the specific finned tube 2, and the function of the control hole 40 is the same as that of the control hole 12.

[0056] As a preferred technical solution of the energy-saving heat exchange device, a vertical cylinder 25 is provided at the top of the finned tube 2. The vertical cylinder 25 is connected to the inner wall of the finned tube 2 through a connecting frame. The rotating cylinder 24 is rotatably connected to the vertical cylinder 25 through an inner cylinder provided at the top. The inner cavity of the vertical cylinder 25 is communicated with the inner cavity of the rotating cylinder 24.

[0057] As a preferred technical solution of the energy-saving heat exchange device, the descaling mechanism includes a rotating cylinder 24, a vertical cylinder 25, a horizontal cylinder 30, a sleeve 35 and a spray head 32. A worm gear 33 is provided at the bottom end of the rotating cylinder 24. The bottom end of the worm gear 33 is rotatably connected to a bottom seat 34. The bottom seat 34 is provided on the bottom wall of the inner cavity of the first water tank 1.

[0058] When the fluid medium reaches the first water tank 1 through the finned tube 2, it can drive the worm gear 33 to rotate, and the worm gear 33 drives the rotating cylinder 24 to rotate.

[0059] As a preferred technical solution of the energy-saving heat exchange device, several horizontal cylinders 30 are evenly arranged on the circumferential surface of the rotating cylinder 24. An attachment ring 38 is sleeved and fixed on the outer side of one end of the horizontal cylinder 30. A cleaning ring 31 is provided on one side of the attachment ring 38. An inner ring 36 is fixed on the inner side of the other end of the sleeve 35. A spray head 32 is provided on the horizontal cylinder 30.

[0060] The rotating cylinder 24 drives the horizontal cylinder 30 and the cleaning ring 31 to rotate. The centrifugal force causes the cleaning ring 31 to be thrown out against the elastic force of the elastic member 37, so that the cleaning ring 31 contacts the inner wall of the finned tube 2. During the rotation of the cleaning ring 31, the physical deposits and chemical crystals on the inner wall of the finned tube 2 are scraped off.

[0061] As a preferred technical solution of the energy-saving heat exchange device, a limiting ring is provided at one end of the horizontal cylinder 30. An elastic member 37 is connected between the limiting ring of the horizontal cylinder 30 and the inner ring 36.

[0062] The elastic member 37 pushes the inner ring 36 so that the sleeve 35 pulls the cleaning ring 31 away from the inner wall of the finned tube 2.

[0063] The fluid medium passes through the annular channel formed between the rotating cylinder 24 and the inner wall of the finned tube 2, so that the fluid medium forms a hollow cylindrical fluid medium. The cooling efficiency of the hollow cylindrical fluid medium is higher, and there will be no problem that it is difficult to conduct heat exchange in the middle of the solid cylindrical fluid medium flow.

[0064] The temperature of the heated fluid medium is significantly higher than the temperature outside the finned tube 2. The heated fluid medium enters the first water tank 1 through the liquid inlet pipe, then passes through the finned tube 2 and reaches the second water tank 4 and is discharged through the liquid discharge pipe. During this period, the heat is transferred out through the finned tube 2 to achieve heat exchange.

[0065] The specific implementation method is as follows: Pull the control board 6, and drive the control rod 19 to move through the restraint ring two 16, the connecting rod 5 and the connecting sleeve 18 on the control board 6, so that the guide cylinder 29 moves to the corresponding position of the fin tube 2 to be cleaned. The control arc seat 21 above the fin tube 2 pushes the arc plate 14, and through the arc plate 14 and the connecting arm 13, the guide cylinder 29 and the elastic insertion cylinder 27 are pushed into the elastic sealing ring 26 and the fin tube 2;

[0066] When the fluid medium reaches the first water tank 1 through the fin tube 2, it can drive the worm wheel 33 to rotate. The worm wheel 33 drives the rotating cylinder 24 to rotate. The rotating cylinder 24 drives the transverse cylinder 30 and the cleaning ring 31 to rotate. The centrifugal force causes the cleaning ring 31 to overcome the elastic force of the elastic member 37 and be thrown out, so that the cleaning ring 31 contacts the inner wall of the fin tube 2. During the rotation of the cleaning ring 31, the physical deposits and chemical crystals on the inner wall of the fin tube 2 are scraped off;

[0067] Except that the sealing plate 10 on the fin tube 2 corresponding to the guide cylinder 29 will correspond to the arc plate 14 and can be pushed away from the fin tube 2 by the spring, the sealing plates 10 on other fin tubes 2 correspond to the places on the control board 6 without the first control hole 12 and are locked, so that the elastic sealing ring 26 is covered and sealed; The fluid medium is concentrated and enters the fin tube 2 through the guide cylinder 29, increasing the water pressure, enabling the rotation speed of the rotating cylinder 24 and the cleaning ring 31 to reach the threshold value, and enabling the centrifugal force of the cleaning ring 31 to overcome the elastic force of the elastic member 37 enough to be thrown out, so that the cleaning ring 31 contacts the inner wall of the fin tube 2;

[0068] The water liquid will also be sprayed out through the nozzle 32 to wash away the debris generated by the scraping.

[0069] It should be understood that in the development process of any actual implementation method, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those ordinary technical personnel who benefit from this disclosure, without excessive experimentation, the development efforts will be a routine work of design, manufacturing and production.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. Energy-saving heat exchange device, characterized in that: It comprises a water tank (1), a plurality of fin tubes (2) are evenly arranged between the water tank (1) and the water tank (4), the fin tubes (2) are vertically arranged, a plurality of corrugated plates (3) are evenly sleeved on the outer side of the fin tubes (2), a liquid separation cavity (7) is concavely arranged on the inner side of the water tank (4), and the top end of the fin tubes (2) extends into the liquid separation cavity (7); The top end of the fin tube (2) is provided with an elastic sealing ring (8), a liquid separation chamber (7) and a movable groove (9) are concavely provided on the water tank (4), a plurality of movable channels are provided between the liquid separation chamber (7) and the movable groove (9), a sealing plate (10) is movably inserted in the movable channel, an end of one end of the sealing plate (10) is located in the liquid separation chamber (7), and an end of the other end is located in the movable groove (9); The sealing plate (10) is movably connected to the elastic sealing ring (8), a spring is connected between the sealing plate (10) and the inner wall of the movable groove (9), the sealing plate (10) is a square column, a control plate (6) is slidably connected in the movable groove (9), and the control plate (6) is movably connected to the sealing plate (10); A descaling mechanism is arranged on the inner side of the fin tube (2).

2. The energy-saving heat exchange device according to claim 1, characterized in that: The control plate (6) is evenly provided with a plurality of control holes (12), each of which corresponds to the sealing plate (10) one by one, and a spring is connected between the inner wall of the movable groove (9) and the sealing plate (10).

3. The energy-saving heat exchange device according to claim 2, characterized in that: A special-shaped block (11) is respectively arranged on both sides of the inner side of the control hole (12); the opposing surfaces of the two special-shaped blocks (11) are arc-shaped surfaces; and the sealing plate (10) is movably connected to the arc-shaped surfaces of the special-shaped blocks (11).

4. The energy-saving heat exchange device according to claim 1, characterized in that: A positioning groove is respectively formed at both ends of the liquid separation chamber (7), and the positioning groove is movably connected to the control rod (19). A plurality of control arc seats (21) are arranged at intervals on the inner top wall of the liquid separation chamber (7). A flow guide structure is arranged on the control rod (19), and the descaling mechanism is movably connected to the flow guide structure.

5. The energy-saving heat exchange device according to claim 4, characterized in that: The flow guide structure comprises a flow guide tube (29), an elastic plug-in tube (27), a control seat (23), a control hole (12), a connecting arm (13), an arc plate (14) and a constraint ring (15). The control rod (19) is provided with a control hole (12). The control hole (12) is provided with two constraint rings (15). The constraint rings (15) are each movably plugged with a connecting arm (13). An arc plate (14) is connected between the two connecting arms (13). The bottom end of the control arc seat (21) is provided with an elastic block (22). The arc plate (14) is movably connected to the elastic block (22). The bottom end of the connecting arm (13) is provided with a flow guide tube (29). The bottom end of the flow guide tube (29) is provided with an elastic plug-in tube (27). The elastic plug-in tube (27) is movably plugged with an elastic sealing ring (26).

6. The energy-saving heat exchange device according to claim 5, characterized in that: A second restraint ring (16) is provided at one end of the control plate (6), and the second restraint ring (16) is rotatably connected to a connecting rod (5). A connecting sleeve (18) is provided at one end of the connecting rod (5), and the connecting sleeve (18) is threadedly connected to a control rod (19). A second control hole (40) is also concavely provided on the control plate (6), and the length of the second control hole (40) is equal to the length of the first control hole (12) plus the sum of the lengths of the intervals between two adjacent first control holes (12). The second control hole (40) corresponds to the position of the control seat (23).

7. The energy-saving heat exchange device according to claim 5, characterized in that: A vertical cylinder (25) is arranged on the top of the finned tube (2), and the vertical cylinder (25) is connected to the inner wall of the finned tube (2) through a connecting frame. The rotating cylinder (24) is rotatably connected to the vertical cylinder (25) through an inner cylinder arranged on the top, and the inner cavity of the vertical cylinder (25) is communicated with the inner cavity of the rotating cylinder (24).

8. The energy-saving heat exchange device according to claim 1, characterized in that: The descaling mechanism comprises a rotating cylinder (24), a vertical cylinder (25), a horizontal cylinder (30), a sleeve (35) and a nozzle (32); a worm gear (33) is arranged at the bottom end of the rotating cylinder (24); the bottom end of the worm gear (33) is rotatably connected to a bottom seat (34); and the bottom seat (34) is arranged on the bottom wall of an inner cavity of a water tank (1).

9. The energy-saving heat exchange device according to claim 8, characterized in that: A plurality of transverse cylinders (30) are evenly arranged on the circumference of the rotating cylinder (24); an attachment ring (38) is sleeved and fixed on the outer side of one end of the transverse cylinder (30); a cleaning ring (31) is arranged on one side of the attachment ring (38); a built-in ring (36) is fixed on the inner side of the other end of the sleeve (35); and a nozzle (32) is arranged on the transverse cylinder (30).

10. The energy-saving heat exchange device according to claim 9, characterized in that: A limiting ring is provided at one end of the transverse cylinder (30), and an elastic member (37) is connected between the limiting ring of the transverse cylinder (30) and the built-in ring (36).

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