Multi-fin rapid heat exchange device

Abstract

The invention relates to the technical field of heat exchangers, in particular to a multi-fin rapid heat exchange device which comprises a heat exchange chamber, and a water inlet branch pipe communicated with a water inlet pipe of a cooling water system is installed on the side face, adjacent to a sealing cover, of the heat exchange chamber. A water outlet branch pipe communicated with a water return pipe of a cooling water system is installed on the face, away from the water inlet branch pipe, of the heat exchange chamber, a heat exchange pipe is installed in the heat exchange chamber, spiral fins are installed on the outer surface of the heat exchange pipe, and a medium discharge pipe is installed on the side face, adjacent to the water outlet branch pipe, of the heat exchange chamber. A medium inlet pipe is installed on the face, away from the medium discharge pipe, of the heat exchange chamber, and the end, located in the heat exchange chamber, of the medium inlet pipe communicates with the end, away from the medium discharge pipe, of the heat exchange pipe through a protection piece. The heat exchanger has the following beneficial effect that the situation that the welding positions of the fins and the heat exchange pipes are cracked due to the fact that the heat exchange pipes have large temperature differences is avoided.

Description

Technical Field

[0001] The invention relates to a multi-fin rapid heat exchange device, belonging to the technical field of heat exchangers. Background Art

[0002] The heat exchange tube with fins welded on the surface is installed in the heat exchange chamber, cooling water is allowed to enter the heat exchange chamber, and the medium that needs to be cooled flows through the heat exchange tube, thereby achieving the purpose of heat exchange. At present, both ends of the heat exchange tube are directly connected to the medium flow pipe. When the cooling water system cannot pass cooling water into the heat exchange chamber for some reason, when the high-temperature medium flows through the heat exchange tube and the cooling water does not flow into the heat exchange chamber, the temperature of the heat exchange tube will rise. Because the fins are fixed to the surface of the heat exchange tube by welding, when the cooling water is passed normally, there is a situation where the welding part between the heat exchange tube and the fins is cracked due to the sharp drop from high temperature to low temperature. The failure rate is relatively high, which affects the service life. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a multi-fin rapid heat exchange device to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a multi-fin rapid heat exchange device, including a heat exchange chamber, both ends of the heat exchange chamber are open, and a detachable sealing cover is installed at the open end of the heat exchange chamber, a side of the heat exchange chamber adjacent to the sealing cover is equipped with an inlet branch pipe connected to the water inlet pipe of the cooling water system, and a side of the heat exchange chamber away from the inlet branch pipe is equipped with an outlet branch pipe connected to the return pipe of the cooling water system, a heat exchange tube is installed in the heat exchange chamber, and spiral fins are installed on the outer surface of the heat exchange tube, a medium discharge pipe is installed on the side of the heat exchange chamber adjacent to the outlet branch pipe, one end of the medium discharge pipe extends into the heat exchange chamber and is connected to one end of the heat exchange tube, and a medium inlet pipe is installed on the side of the heat exchange chamber away from the medium discharge pipe, and one end of the medium inlet pipe is connected to the end of the heat exchange tube away from the medium discharge pipe through a protective member, and the protective member is arranged on the side of the heat exchange chamber close to the inlet branch pipe.

[0005] Specifically, the protective member includes a round cover, a round cover rotatably connected to the heat exchange tube is installed at one end of the heat exchange tube away from the medium discharge tube, a dynamic seal is installed at the contact position between the round cover and the heat exchange tube, the end of the round cover away from the heat exchange tube is open, an end cover is installed at the open end of the round cover, the end cover is sleeved on the medium inlet tube and rotatably connected to the medium inlet tube, a dynamic seal is installed between the end cover and the connection position of the medium inlet tube, a guide hole is opened on the outer surface of the round cover, a guide rod is inserted in the guide hole, a float is connected and fixed to the end of the guide rod outside the round cover, and a plug is installed at the end of the guide rod inside the round cover. A disk, a first partition plate fitted with the blocking disk is provided on a side of the blocking disk close to the end cover, the first partition plate is fixed in the round cover, a second partition plate fitted with the blocking disk is provided on a side of the blocking disk away from the first partition plate, the second partition plate is fixed in the round cover, a first medium flow channel which can be blocked by the blocking disk is provided on a side of the first partition plate away from the guide hole, a second medium flow channel which can be blocked by the blocking disk is provided on a side of the second partition plate away from the guide hole, the cross-sections of the first medium flow channel and the second medium flow channel are both circular and the first medium flow channel and the second medium flow channel are concentrically arranged, and a counterweight is installed on the side of the outer surface of the round cover away from the guide hole.

[0006] Specifically, the counterweight block is a hollow structure, and a feeding port is installed on the side of the counterweight block away from the circular cover. The outer surface of the end of the feeding port away from the counterweight block is processed with external threads, and the end of the feeding port processed with external threads is threadedly connected with a threaded cover.

[0007] Specifically, a connecting shaft is connected and fixed to the middle position of the side of the counterweight block facing the circular cover, and the end of the connecting shaft away from the counterweight block is rotatably connected to the circular cover through a bearing. The cross-section of the counterweight block is circular, and the outer surface of the counterweight block is annular with multiple arc-shaped blades equidistantly installed. The arc-shaped blades are arranged on the water outlet side of the heat exchange chamber close to the water inlet branch pipe.

[0008] Specifically, a first circular opening is opened in the middle of one side of the circular cover away from the end cover, and a second circular opening is opened in the middle of one side of the end cover away from the circular cover. A dynamic seal connecting the heat exchange tube and the circular cover is installed in the first circular opening, and a dynamic seal connecting the medium inlet pipe and the end cover is installed in the second circular opening.

[0009] Specifically, a sealing groove is provided in the guide hole, a sealing ring is installed in the sealing groove, and the sealing ring is sleeved on the guide rod.

[0010] Specifically, two symmetrically arranged connecting strips are connected and fixed to the two side surfaces of the heat exchange chamber adjacent to the water inlet branch pipe. The connecting strips fit the sealing cover and are connected and fixed to the sealing cover by means of screws and nuts.

[0011] Specifically, a first through hole is opened at the position where the medium inlet pipe is installed in the heat exchange chamber, and the medium inlet pipe passes through the first through hole. A second through hole is opened at the position where the medium discharge pipe is installed in the heat exchange chamber, and the medium discharge pipe passes through the second through hole.

[0012] Specifically, the heat exchange tube is an S-shaped structure, and a plurality of spiral fins are welded on the outer surface of the heat exchange tube.

[0013] Beneficial effects of the present invention:

[0014] 1. When cooling water is not introduced into the space formed by the heat exchange chamber and the two sealing covers, the lower plugging plate blocks the first medium flow channel and the second medium flow channel, and the medium inlet pipe is not connected to the heat exchange tube. At this time, the medium that needs to be cooled will not flow into the heat exchange tube, thereby avoiding a large temperature difference in the heat exchange tube and causing cracks in the welding parts of the fins and the heat exchange tubes, playing a role in protecting the heat exchange tube and the fin structure, reducing the failure rate and extending the service life. When cooling water enters the space formed by the heat exchange chamber and the two sealing covers, the float is driven by the buoyancy of the guide rod to slide along the guide hole, so that the plugging plate moves upward. At this time, the first medium flow channel and the second medium flow channel are connected, and finally the medium that needs to be cooled does not flow into the heat exchange tube when cooling water is not introduced.

[0015] 2. Install a counterweight on the round cover, and at the same time, make the medium inlet pipe and the end cover rotatably connected, and make the heat exchange tube and the round cover rotatably connected, so that under the action of the counterweight, the float is always in an upward state, that is, the blocking plate always blocks the first medium flow channel and the second medium flow channel in the initial state, so that the heat exchange chamber can be installed around the axis of the medium inlet pipe according to the on-site installation environment, that is, the heat exchange chamber can be installed in a horizontal, vertical or inclined direction with the axis of the medium inlet pipe.

[0016] 3. The counterweight block is rotatably connected to the round cover, and a plurality of arc-shaped blades are evenly installed on the surface of the counterweight block. When the cooling water flows into the space formed by the heat exchange chamber and the two sealing covers through the water inlet branch pipe, the counterweight block will be tilted away from the water inlet branch pipe under the impact of the water flow. At the same time, the arc-shaped blade drives the counterweight block to rotate under the impact of the water flow. The structure formed by the rotating arc-shaped blade and the counterweight block allows convection between the cooling water in the lower space of the heat exchange chamber and the cooling water in the upper space of the heat exchange chamber, which is beneficial for the cooling water to fully contact with the structure formed by the fins and the heat exchange tubes.

[0017] 4. By installing the first partition plate and the second partition plate in the space formed by the round cover and the end cover, the first medium flow channel and the second medium flow channel are arranged on the side away from the guide hole, thereby ensuring that the blocking plate can open or block the first medium flow channel and the second medium flow channel, and reducing the length of the guide rod. Considering that the distance between the two sealing covers should not affect the movement of the float, the guide rod with a reduced length facilitates shortening the distance between the two sealing covers, which is beneficial to reducing the size of the heat exchange chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 It is a structural schematic diagram of a multi-fin rapid heat exchange device of the present invention;

[0020] Figure 2 A three-dimensional diagram of a multi-fin rapid heat exchange device of the present invention from another perspective;

[0021] Figure 3 It is a schematic diagram of the assembly of heat exchange tubes, fins, round covers and heat exchange chambers in a multi-fin rapid heat exchange device of the present invention;

[0022] Figure 4 It is a schematic diagram of the assembly of a floating ball, a round cover, a medium inlet pipe, a counterweight block and a heat exchange tube in a multi-fin rapid heat exchange device of the present invention;

[0023] Figure 5 A three-dimensional diagram of a heat exchange chamber in a multi-fin rapid heat exchange device of the present invention;

[0024] Figure 6 It is a schematic diagram of the assembly of a first partition plate, a second partition plate, a blocking plate, a guide rod, an end cover and a round cover in a multi-fin rapid heat exchange device of the present invention;

[0025] Figure 7 It is a schematic diagram of the assembly of the arc blade, the counterweight and the round cover in a multi-fin rapid heat exchange device of the present invention;

[0026] Figure 8 It is a schematic assembly diagram of the arc-shaped blade, the counterweight and the round cover in a multi-fin rapid heat exchange device of the present invention from another perspective;

[0027] Fig. 9 It is a schematic diagram of the assembly of a floating ball, a guide rod, a blocking plate, a first partition plate and a second partition plate in a multi-fin rapid heat exchange device of the present invention;

[0028] Fig.10 It is a schematic diagram of the assembly of a guide rod and a blocking plate in a multi-fin rapid heat exchange device of the present invention;

[0029] Fig.11 A three-dimensional diagram of a first partition plate in a multi-fin rapid heat exchange device of the present invention;

[0030] Fig.12 A three-dimensional diagram of an end cover of a multi-fin rapid heat exchange device of the present invention;

[0031] In the figure: 1, heat exchange chamber, 2, sealing cover, 3, medium inlet pipe, 4, connecting strip, 5, water inlet branch pipe, 6, medium discharge pipe, 7, water outlet branch pipe, 8, heat exchange tube, 9, fin, 10, round cover, 11, float, 12, end cover, 13, counterweight, 14, arc blade, 15, first perforation, 16, second perforation, 17, guide rod, 18, first partition plate, 19, first medium flow channel, 20, blocking plate, 21, second medium flow channel, 22, second partition plate, 23, guide hole, 24, bearing, 25, connecting shaft, 26, addition port, 27, threaded cover. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 The present invention provides a technical solution: a multi-fin rapid heat exchange device, comprising a heat exchange chamber 1, both ends of the heat exchange chamber 1 are open, and a detachable sealing cover 2 is installed at the open end of the heat exchange chamber 1, wherein the two side surfaces of the heat exchange chamber 1 adjacent to the water inlet branch pipe 5 are connected and fixed with two symmetrically arranged connecting strips 4, the connecting strips 4 are fitted with the sealing cover 2, and the connecting strips 4 are connected and fixed with the sealing cover 2 by means of screws and nuts, thereby completing the assembly of the sealing cover 2 and the heat exchange chamber 1.

[0034] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 A water inlet branch pipe 5 connected to the water inlet pipe of the cooling water system is installed on the side of the heat exchange chamber 1 adjacent to the sealing cover 2, and a water outlet branch pipe 7 connected to the return pipe of the cooling water system is installed on the side of the heat exchange chamber 1 away from the water inlet branch pipe 5. The cooling water flows into the space formed by the heat exchange chamber 1 and the two sealing covers 2 through the water inlet branch pipe 5, and then the cooling water flows back to the return pipe of the cooling water system through the water outlet branch pipe 7.

[0035] See also Figure 3 and Figure 4A heat exchange tube 8 is installed in the heat exchange chamber 1, and a spiral fin 9 is installed on the outer surface of the heat exchange tube 8. The heat exchange tube 8 is an S-shaped structure, and a plurality of spiral fins 9 are welded on the outer surface of the heat exchange tube 8. By installing a plurality of fins 9 on the S-shaped heat exchange tube 8, it is beneficial to increase the contact range with the cooling water and improve the heat exchange efficiency per unit time.

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 A medium discharge pipe 6 is installed on the side of the heat exchange chamber 1 adjacent to the water outlet branch pipe 7. One end of the medium discharge pipe 6 extends into the heat exchange chamber 1 and is connected to one end of the heat exchange pipe 8. A medium inlet pipe 3 is installed on the side of the heat exchange chamber 1 away from the medium discharge pipe 6. A first through hole 15 is opened at the position where the medium inlet pipe 3 is installed in the heat exchange chamber 1, and the medium inlet pipe 3 passes through the first through hole 15. A second through hole 16 is opened at the position where the medium discharge pipe 6 is installed in the heat exchange chamber 1, and the medium discharge pipe 6 passes through the second through hole 16. The design of the first through hole 15 and the second through hole 16 facilitates the assembly of the medium inlet pipe 3, the medium discharge pipe 6 and the heat exchange chamber 1.

[0037] See also Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 and Fig.12 A round cover 10 rotatably connected to the heat exchange tube 8 is installed at one end of the heat exchange tube 8 away from the medium discharge tube 6, and a dynamic seal is installed at the contact position between the round cover 10 and the heat exchange tube 8. The end of the round cover 10 away from the heat exchange tube 8 is open, and an end cover 12 is installed at the open end of the round cover 10. The end cover 12 is sleeved on the medium inlet pipe 3 and rotatably connected to the medium inlet pipe 3. A dynamic seal is installed between the end cover 12 and the connecting position of the medium inlet pipe 3. A first round opening is opened in the middle position of one side of the round cover 10 away from the end cover 12, and a second round opening is opened in the middle position of one side of the end cover 12 away from the round cover 10. A dynamic seal connecting the heat exchange tube 8 and the round cover 10 is installed in the first round opening, and a dynamic seal connecting the medium inlet pipe 3 and the end cover 12 is installed in the second round opening. The first round opening and the second round opening provide space for the installation of the dynamic seal.

[0038] See also Figure 1-Figure 12A guide hole 23 is provided on the outer surface of the circular cover 10, a guide rod 17 is inserted in the guide hole 23, a sealing groove is provided in the guide hole 23, a sealing ring is installed in the sealing groove, the sealing ring is sleeved on the guide rod 17, and the sealing between the guide rod 17 and the guide hole 23 is improved. The end of the guide rod 17 outside the circular cover 10 is connected and fixed with a floating ball 11, and the end of the guide rod 17 inside the circular cover 10 is installed with a blocking disk 20, and the side of the blocking disk 20 close to the end cover 12 is provided with a first partition plate 18 that fits the blocking disk 20, and the first partition plate 18 is fixed in the circular cover 10, and the blocking disk 20 is away from the first partition plate 18. A second partition plate 22 that fits with the blocking plate 20 is provided on one side of a partition plate 18, and the second partition plate 22 is fixed in the round cover 10. A first medium flow channel 19 that can be blocked by the blocking plate 20 is opened on the side of the first partition plate 18 away from the guide hole 23, and a second medium flow channel 21 that can be blocked by the blocking plate 20 is opened on the side of the second partition plate 22 away from the guide hole 23. The cross-sections of the first medium flow channel 19 and the second medium flow channel 21 are both circular and the first medium flow channel 19 and the second medium flow channel 21 are concentrically arranged. A counterweight 13 is installed on the side of the outer surface of the round cover 10 away from the guide hole 23.

[0039] When cooling water is not introduced into the space formed by the heat exchange chamber 1 and the two sealing covers 2, the lower blocking plate 20 blocks the first medium flow channel 19 and the second medium flow channel 21, and the medium inlet pipe 3 is not connected to the heat exchange tube 8. At this time, the medium that needs to be cooled will not flow into the heat exchange tube 8, thereby avoiding a large temperature difference in the heat exchange tube 8 and causing cracks in the welding parts of the fins 9 and the heat exchange tube 8, thereby protecting the heat exchange tube 8 and the fins 9 to form a structure, reducing the failure rate and extending the service life. When cooling water enters the space formed by the heat exchange chamber 1 and the two sealing covers 2, the float 11 is driven by the buoyancy to drive the guide rod 17 to slide along the guide hole 23, so that the blocking plate 20 moves upward. At this time, the first medium flow channel 19 and the second medium flow channel 21 are connected, and finally the medium that needs to be cooled does not flow into the heat exchange tube 8 when cooling water is not introduced.

[0040] By installing the first partition plate 18 and the second partition plate 22 in the space formed by the round cover 10 and the end cover 12, the first medium flow channel 19 and the second medium flow channel 21 are arranged on the side away from the guide hole 23, thereby ensuring that the blocking plate 20 can open or block the first medium flow channel 19 and the second medium flow channel 21, and reducing the length of the guide rod 17. Considering that the distance between the two sealing covers 2 should not affect the movement of the float 11, the guide rod 17 with a reduced length facilitates shortening the distance between the two sealing covers 2, which is beneficial to reducing the size of the heat exchange chamber 1.

[0041] A counterweight 13 is installed on the round cover 10, and the medium inlet pipe 3 is rotatably connected to the end cover 12, and the heat exchange tube 8 is rotatably connected to the round cover 10. Then, under the action of the counterweight 13, the float 11 is always in an upward state, that is, the blocking disk 20 always blocks the first medium flow channel 19 and the second medium flow channel 21 in the initial state, so that the heat exchange chamber 1 can be installed around the axis of the medium inlet pipe 3 according to the on-site installation environment, that is, the heat exchange chamber 1 can be installed in a horizontal, vertical or inclined direction with the axis of the medium inlet pipe 3.

[0042] See Figure Figure 7 and Figure 8 A connecting shaft 25 is connected and fixed to the middle of the side of the counterweight 13 facing the round cover 10. The end of the connecting shaft 25 away from the counterweight 13 is rotatably connected to the round cover 10 through a bearing 24. The cross section of the counterweight 13 is circular, and a plurality of arc blades 14 are evenly installed on the outer surface of the counterweight 13 in an annular shape. The arc blades 14 are arranged on the water outlet side of the heat exchange chamber 1 near the water inlet branch pipe 5, so that the counterweight 13 is rotatably connected to the round cover 10, and a plurality of arc blades 14 are evenly installed on the surface of the counterweight 13, thereby cooling the water. When the water flows into the space formed by the heat exchange chamber 1 and the two sealing covers 2 through the water inlet branch pipe 5, the counterweight 13 will be tilted away from the water inlet branch pipe 5 under the impact of the water flow. At the same time, the arc blade 14 drives the counterweight 13 to rotate under the impact of the water flow. The structure formed by the rotating arc blade 14 and the counterweight 13 allows the cooling water in the lower space of the heat exchange chamber 1 to convect with the cooling water in the upper space of the heat exchange chamber 1, which is beneficial for the cooling water to fully contact with the structure formed by the fins 9 and the heat exchange tubes 8.

[0043] See Figure Figure 7 and Figure 8 The counterweight 13 is a hollow structure. A charging port 26 is installed on the side of the counterweight 13 away from the round cover 10. The outer surface of the end of the charging port 26 away from the counterweight 13 is processed with an external thread. The end of the charging port 26 processed with the external thread is threadedly connected with a threaded cover 27. The threaded cover 27 is opened and counterweight fillers of different weights are added into the counterweight 13 through the charging port 26, which is convenient for adjusting the weight of the counterweight 13. When the impact force of the cooling water flowing into the heat exchange chamber 1 is constant, the purpose of adjusting the inclination angle of the counterweight 13 is achieved, so that the inclination angle of the arc blade 14 changes under the impact of the water flow.

[0044] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-fin rapid heat exchange device, comprising a heat exchange chamber (1), characterized in that: Both ends of the heat exchange chamber (1) are open. A detachable sealing cover (2) is installed at the open end of the heat exchange chamber (1). A water inlet branch pipe (5) connected to the water inlet pipe of the cooling water system is installed on the side of the heat exchange chamber (1) adjacent to the sealing cover (2). A water outlet branch pipe (7) connected to the return pipe of the cooling water system is installed on the side of the heat exchange chamber (1) away from the water inlet branch pipe (5). A heat exchange tube (8) is installed in the heat exchange chamber (1). The outer surface of the heat exchange tube (8) is equipped with a spiral fin (9). A medium discharge pipe (6) is installed on a side of the heat exchange chamber (1) adjacent to the water outlet branch pipe (7), one end of the medium discharge pipe (6) extends into the heat exchange chamber (1) and is connected to and communicates with one end of the heat exchange pipe (8), and a medium inlet pipe (3) is installed on a side of the heat exchange chamber (1) away from the medium discharge pipe (6), one end of the medium inlet pipe (3) located in the heat exchange chamber (1) is connected to and communicates with one end of the heat exchange pipe (8) away from the medium discharge pipe (6) through a protective member, and the protective member is arranged on a side of the heat exchange chamber (1) close to the water inlet branch pipe (5).

2. A multi-fin rapid heat exchange device according to claim 1, characterized in that: The protective member comprises a round cover (10), one end of the heat exchange tube (8) away from the medium discharge tube (6) is provided with a round cover (10) rotatably connected to the heat exchange tube (8), a dynamic seal is provided at a contact portion between the round cover (10) and the heat exchange tube (8), one end of the round cover (10) away from the heat exchange tube (8) is open, an end cover (12) is provided at the open end of the round cover (10), the end cover (12) is sleeved on the medium inlet tube (3) and is in contact with the medium inlet tube (3). The medium inlet pipe (3) is rotatably connected, a dynamic seal is installed between the connection portion of the end cover (12) and the medium inlet pipe (3), a guide hole (23) is opened on the outer surface of the round cover (10), a guide rod (17) is inserted in the guide hole (23), a floating ball (11) is connected and fixed to one end of the guide rod (17) located outside the round cover (10), a plugging disk (20) is installed on one end of the guide rod (17) located inside the round cover (10), and the plugging disk (20) is installed on the other end of the guide rod (17) located inside the round cover (10). 0) A first partition plate (18) is provided on the side close to the end cover (12) and is fitted with the blocking plate (20). The first partition plate (18) is fixed in the round cover (10). A second partition plate (22) is provided on the side of the blocking plate (20) facing away from the first partition plate (18) and is fitted with the blocking plate (20). The second partition plate (22) is fixed in the round cover (10). A first medium flow channel (19) which can be blocked by the blocking plate (20) is provided on the side of the first partition plate (18) facing away from the guide hole (23). A second medium flow channel (21) which can be blocked by the blocking plate (20) is provided on the side of the second partition plate (22) facing away from the guide hole (23). The cross sections of the first medium flow channel (19) and the second medium flow channel (21) are both circular and are arranged concentrically. A counterweight (13) is installed on the side of the outer surface of the round cover (10) facing away from the guide hole (23).

3. A multi-fin rapid heat exchange device according to claim 2, characterized in that: The counterweight block (13) is a hollow structure. A feeding port (26) is installed on a side of the counterweight block (13) facing away from the circular cover (10). An outer surface of one end of the feeding port (26) away from the counterweight block (13) is processed with an external thread. One end of the feeding port (26) processed with the external thread is threadedly connected to a threaded cover (27).

4. A multi-fin rapid heat exchange device according to claim 2, characterized in that: A connecting shaft (25) is fixedly connected to the middle of a side of the counterweight (13) facing the circular cover (10); an end of the connecting shaft (25) away from the counterweight (13) is rotatably connected to the circular cover (10) via a bearing (24); the cross section of the counterweight (13) is circular; a plurality of arcuate blades (14) are equidistantly mounted in an annular shape on the outer surface of the counterweight (13); the arcuate blades (14) are arranged in the heat exchange chamber (1) on the water outlet side close to the water inlet branch pipe (5).

5. The multi-fin rapid heat exchange device according to claim 2, characterized in that: A first circular opening is provided at the middle of one side of the circular cover (10) facing away from the end cover (12), and a second circular opening is provided at the middle of one side of the end cover (12) facing away from the circular cover (10). A dynamic seal connecting the heat exchange tube (8) and the circular cover (10) is installed in the first circular opening, and a dynamic seal connecting the medium inlet tube (3) and the end cover (12) is installed in the second circular opening.

6. A multi-fin rapid heat exchange device according to claim 2, characterized in that: A sealing groove is provided in the guide hole (23), a sealing ring is installed in the sealing groove, and the sealing ring is sleeved on the guide rod (17).

7. The multi-fin rapid heat exchange device according to claim 1, characterized in that: Two symmetrically arranged connecting strips (4) are connected and fixed to the two side surfaces of the heat exchange chamber (1) adjacent to the water inlet branch pipe (5); the connecting strips (4) are fitted with the sealing cover (2); and the connecting strips (4) are connected and fixed to the sealing cover (2) by means of screws and nuts.

8. The multi-fin rapid heat exchange device according to claim 1, characterized in that: A first through hole (15) is provided at a position where the medium inlet pipe (3) is installed in the heat exchange chamber (1), and the medium inlet pipe (3) passes through the first through hole (15); a second through hole (16) is provided at a position where the medium outlet pipe (6) is installed in the heat exchange chamber (1), and the medium outlet pipe (6) passes through the second through hole (16).

9. The multi-fin rapid heat exchange device according to claim 1, characterized in that: The heat exchange tube (8) is of an S-shaped structure, and a plurality of spiral fins (9) are welded on the outer surface of the heat exchange tube (8).

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