Evaporative heat exchanger with high heat exchange efficiency

Abstract

The invention relates to the technical field of heat exchangers, in particular to an evaporative heat exchanger with high heat exchange efficiency, which comprises a shell, a finned tube and a U-shaped tube, side plates are arranged on two sides of the inner wall of the shell and movably sleeve the outer surface of the finned tube, a rotating ring is movably arranged on the side edge of a driving plate, a reciprocating cleaning unit is arranged in the shell, and the U-shaped tube is arranged in the shell. According to the evaporative heat exchanger with the high heat exchange efficiency, each fin is sleeved with the rotating ring, the multiple brush bundles are arranged in the rotating ring, the rotating ring is driven to move by driving the driving plate to move, and then the rotating ring is driven to rotate and move, so that the outer surface of the finned tube is cleaned, and according to the evaporative heat exchanger with the high heat exchange efficiency, all the fins are sleeved with the rotating ring, and the multiple brush bundles are arranged in the rotating ring; the finned tube outer surface cleaning device can directly clean the outer surface of a finned tube, the arranged reciprocating cleaning unit and the water spraying assembly work cooperatively, the brush bundle is driven to conduct repeated reciprocating cleaning on the outer surface of the finned tube, and special cleaning chemical liquid medicine is matched, so that the cleaning effect can be further improved, and better cleaning operation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchangers, in particular to an evaporative heat exchanger with high heat exchange efficiency. Background Art

[0002] The evaporative heat exchanger mainly realizes heat exchange based on the principle of water evaporation and heat absorption. It is usually composed of heat transfer tube bundles, air circulation channels and other parts. The hot fluid flows in the heat transfer tube bundle. At the same time, the air flows through the surface of the tube bundle under the action of the fan, exchanging heat and mass with the water film. During the evaporation process, the water absorbs the heat of the hot fluid in the tube bundle, thereby cooling the hot fluid, while the air is humidified and heated.

[0003] Existing heat exchangers, such as fin heat exchangers, achieve heat exchange by connecting multiple identical copper tubes end to end. However, after long-term use, dirt will be generated inside, and the accumulation of dirt will reduce the overall heat exchange efficiency. Therefore, the outer surface needs to be cleaned regularly, but the current cleaning method requires the fin tubes to be disassembled for operation, which is an extremely cumbersome process. Therefore, we propose an evaporative heat exchanger with high heat exchange efficiency. Summary of the invention

[0004] A technical problem to be solved by the present application is: how to design an evaporative heat exchanger with high heat exchange efficiency and rapid cleaning of fin tubes.

[0005] In order to solve the above technical problems, the embodiment of the present application provides an evaporative heat exchanger with high heat exchange efficiency, comprising a shell, a fin tube and a U-shaped tube, wherein side plates are arranged on both sides of the inner wall of the shell, and further comprising: A rotating ring is movably sleeved on the outer surface of the fin tube, and a plurality of rotating rings are provided; A brush bundle is movably arranged inside the rotating ring, a plurality of brush bundles are arranged, and they are directly opposite to the outer surface of the fin tube; A driving plate is movably sleeved on the outer surface of the fin tube, and the rotating ring is movably arranged on the side of the driving plate; A reciprocating cleaning unit is arranged in the housing and is used to drive the driving plate to move, thereby driving the rotating ring to move. The rotating ring drives multiple brush bundles inside to rotate and move, thereby cleaning the outer surface of the fin tube; A water spray assembly is arranged on the side plate and is used to spray the cleaning liquid mixture onto the fin tubes during the movement of the driving plate, and to clean the fin tubes in cooperation with the brush bundle.

[0006] In some embodiments, the reciprocating cleaning unit includes two ball screws arranged between two side plates, the outer surfaces of the two ball screws are movably provided with transmission gears, and the thread directions of the two ball screws are opposite, a chain is arranged between the two transmission gears, and a driven gear is movably arranged between the chains, and the driven gear is movably sleeved on the outer surface of the fin tube.

[0007] In some embodiments, the end face of the driven gear is fixedly connected to the rotating ring, a connecting groove is provided on the inner wall of the rotating ring, a piston disk is movably provided on the inner wall of the connecting groove, the bottom end of the piston disk is fixedly provided on the top end of the brush bundle, and the brush bundle is movably provided inside the connecting groove.

[0008] In some embodiments, a circular groove is provided on the inner wall of the connecting groove, a guide rod is movably provided on the inner wall of the circular groove, the bottom end of the guide rod is provided on the top end of the piston disk, a spring is sleeved on the outer surface of the guide rod, one end of the spring is provided on the inner wall of the connecting groove, and a water inlet groove connected to the connecting groove is provided on the end face of the rotating ring.

[0009] In some embodiments, the inner wall of the rotating ring is provided with two straight grooves interconnected with the connecting groove, two inclined plates are provided on the outer side of the brush bundle, and both of the two inclined plates are movably provided on the inner wall of the straight groove, and a driving member for driving the driving plate to move is provided inside the shell.

[0010] In some embodiments, the driving member includes a threaded rod arranged on both sides of the inner wall of the shell, one end of the threaded rod passes through the inner wall of the shell and is provided with a motor, the motor is arranged on the side of the shell, and the driving plate is threadedly connected to the outer surface of the threaded rod.

[0011] In some embodiments, the water spray assembly includes two legs arranged on the top of the driving plate, a mixing box is arranged at the top of the legs, a pressurizer is arranged on the mixing box, a straight pipe interconnected with the interior is arranged at the bottom of the mixing box, and a plurality of fixing rings are fixedly inlaid in the interior of the driving plate, and the end faces of the plurality of fixing rings are respectively rotatably arranged on the end faces of the corresponding rotating rings.

[0012] In some embodiments, a water storage cavity is opened inside each of the plurality of the fixing rings, the bottom end of the straight tube passes through the outer surface of the corresponding fixing ring and is interconnected with the water storage cavity, and a straight tube that is interconnected is provided between every two adjacent fixing rings.

[0013] In some embodiments, an arc-shaped groove is formed on the end surface of the fixed ring close to the rotating ring, the arc-shaped groove is connected to the water inlet groove, and the water inlet groove is connected to the water storage chamber through the arc-shaped groove.

[0014] In some embodiments, an annular groove is provided on the end face of the fixed ring close to the rotating ring, a limiting ring is movably provided on the inner wall of the water storage chamber, a connecting ring is movably provided on the end face of the limiting ring, the connecting ring is movably provided on the inner wall of the annular groove, a connecting pipe connected to the water storage chamber is provided inside the connecting ring, and the outer side of the connecting pipe is provided on the inner wall of the water inlet groove.

[0015] The present invention has at least the following beneficial effects: 1. By setting a rotating ring on each fin and placing multiple brush bundles in the rotating ring, the outer surface of the fin tube can be cleaned directly. This design allows the cleaning work to be completed without disassembling the fin tube, greatly improving the overall work efficiency; 2. The reciprocating cleaning unit works in coordination with the water spray assembly to drive the brush bundle to perform multiple reciprocating cleanings on the outer surface of the fin tube. At the same time, the use of special cleaning chemicals can further enhance the cleaning effect and achieve better cleaning operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the side plate, chain and transmission gear of the present invention; Figure 3 It is a structural schematic diagram of the reciprocating cleaning unit of the present invention; Figure 4 It is a structural schematic diagram of the driving plate, driven gear and transmission gear of the present invention; Figure 5 It is a structural schematic diagram of the water spray assembly of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the rotating ring of the present invention; Figure 7 It is a schematic diagram of the structure of the rotating ring, brush bundle, guide rod and fixed ring of the present invention; Figure 8 It is a schematic diagram of the structure of the fixing ring, the spring and the inclined plate of the present invention; Fig. 9 It is a schematic diagram of the structure of the inclined plate, guide rod, spring and brush bundle of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the fixed ring and the rotating ring of the present invention; Fig.11 It is a schematic diagram of the structure of the fixing ring, the limiting ring and the connecting ring of the present invention.

[0017] In the figure: 1. shell; 2. side plate; 3. U-shaped tube; 4. reciprocating cleaning unit; 41. driving member; 4101. motor; 4102. threaded rod; 42. ball screw; 43. chain; 44. transmission gear; 45. driven gear; 46. water inlet groove; 47. connecting groove; 48. circular groove; 49. guide rod; 410. spring; 411. straight groove; 412. inclined plate; 413. piston disc; 5. water spray assembly; 51. pressurizer; 52. mixing box; 53. support leg; 54. straight tube; 55. fixing ring; 56. water storage chamber; 57. arc groove; 6. fin tube; 7. driving plate; 8. rotating ring; 9. brush bundle; 10. limiting ring; 11. connecting ring; 12. connecting tube; 13. ring groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1-9 The present invention provides a technical solution: an evaporative heat exchanger with high heat exchange efficiency, comprising a shell 1, a finned tube 6 and a U-shaped tube 3, side plates 2 are arranged on both sides of the inner wall of the shell 1, and also includes: A rotating ring 8 is movably sleeved on the outer surface of the fin tube 6, and a plurality of rotating rings are provided; The brush bundle 9 is movably arranged inside the rotating ring 8, and a plurality of brush bundles 9 are arranged, and are directly opposite to the outer surface of the fin tube 6, and are circumferentially distributed inside the rotating ring 8; The driving plate 7 is movably sleeved on the outer surface of the fin tube 6, and the rotating ring 8 is movably arranged on the side of the driving plate 7; The reciprocating cleaning unit 4 is arranged in the housing 1, and is used to drive the driving plate 7 to move, thereby driving the rotating ring 8 to move. The rotating ring 8 drives the internal multiple brush bundles 9 to rotate and move, so as to clean the outer surface of the fin tube 6; The water spray assembly 5 is arranged on the side plate 2 and is used to spray the cleaning liquid mixture onto the fin tube 6 during the movement of the driving plate 7, and cooperate with the brush bundle 9 to clean the fin tube 6.

[0020] The reciprocating cleaning unit 4 includes two ball screws 42 arranged between the two side plates 2, and the outer surfaces of the two ball screws 42 are movably provided with transmission gears 44, and the thread directions of the two ball screws 42 are opposite. A chain 43 is arranged between the two transmission gears 44, and a driven gear 45 is movably arranged between the chains 43. The driven gear 45 is movably sleeved on the outer surface of the fin tube 6. When the ball screw moves the transmission gear 44, it will drive the transmission gear 44 to rotate, thereby driving the chain 43 to rotate.

[0021] The end face of the driven gear 45 is fixedly connected to the rotating ring 8. A connecting groove 47 is provided on the inner wall of the rotating ring 8. A piston disc 413 is movably provided on the inner wall of the connecting groove 47. The bottom end of the piston disc 413 is fixedly provided on the top of the brush bundle 9. The brush bundle 9 is movably provided inside the connecting groove 47. The piston disc 413 will spray the medicine when the brush bundle 9 descends.

[0022] A circular groove 48 is provided on the inner wall of the connecting groove 47, and a guide rod 49 is movably provided on the inner wall of the circular groove 48. The bottom end of the guide rod 49 is arranged on the top end of the piston disk 413, and a spring 410 is sleeved on the outer surface of the guide rod 49. One end of the spring 410 is arranged on the inner wall of the connecting groove 47. A water inlet groove 46 connected to the connecting groove 47 is provided on the end face of the rotating ring 8. The brush bundle 9 can be squeezed between the fins of the fin tube 6 by the arrangement of the spring 410.

[0023] The inner wall of the rotating ring 8 is provided with two straight grooves 411 which are interconnected with the connecting groove 47. Two inclined plates 412 are provided on the outer side of the brush bundle 9. Both inclined plates 412 are movably arranged on the inner wall of the straight groove 411. A driving member 41 for driving the driving plate 7 to move is provided inside the shell 1. When the inclined surface of the inclined surface contacts the fin tube 6, the piston disk 413 is driven to open, so that when it reaches the fins of the fin tube 6, the medicine is sprayed out for cleaning. When the fins are not contacted, the spraying of the medicine can be avoided.

[0024] The driving member 41 includes a threaded rod 4102 arranged on both sides of the inner wall of the shell 1, one end of the threaded rod 4102 passes through the inner wall of the shell 1 and is provided with a motor 4101, the motor 4101 is arranged on the side of the shell 1, and the driving plate 7 is threadedly connected to the outer surface of the threaded rod 4102. The motor 4101 drives the threaded rod 4102 to rotate, thereby driving the driving plate 7 to move.

[0025] The water spray assembly 5 includes two legs 53 arranged on the top of the driving plate 7, a mixing box 52 is arranged at the top of the legs 53, a pressurizer 51 is arranged on the mixing box 52, and a straight pipe 54 interconnected with the interior is arranged at the bottom of the mixing box 52. A plurality of fixing rings 55 are fixedly inlaid in the interior of the driving plate 7, and the end faces of the plurality of fixing rings 55 are rotatably arranged on the end faces of the corresponding rotating ring 8. Each fixing ring 55 is connected in series through the straight pipe 54, and the pressurizer 51 will pressurize the interior of the mixing box 52, so that the medicine can enter the interior of each fixing ring 55 through the straight pipe 54.

[0026] A water storage cavity 56 is provided inside each of the plurality of fixing rings 55 . The bottom end of the straight tube 54 passes through the outer surface of the corresponding fixing ring 55 and is interconnected with the water storage cavity 56 . A straight tube 54 that is interconnected is provided between every two adjacent fixing rings 55 , and the medicine will enter the water storage cavity 56 through the straight tube 54 .

[0027] An arc groove 57 is provided on the end surface of the fixed ring 55 close to the rotating ring 8, and the arc groove 57 is connected to the water inlet groove 46, and the water inlet groove 46 is connected to the water storage chamber 56 through the arc groove 57. When the water inlet groove 46 rotates to the arc groove 57, the medicine will enter the water inlet groove 46 through the arc groove 57, and then be sprayed onto the outer surface of the fin tube 6.

[0028] When using the device, first start the motor 4101 to move the threaded rod 4102, and the threaded rod 4102 will move the driving plate 7. When the driving plate 7 moves, it will drive the internal fixed ring 55 and the rotating ring 8 to move. When the rotating ring 8 moves, it will drive the driven gear 45 to move. Therefore, the movement of the driven gear 45 drives the chain 43 and the two transmission gears 44 to move. Since the transmission gear 44 is sleeved on the outer surface of the ball screw 42, the transmission gear 44 will rotate during the movement, thereby driving the driven gear 45 to rotate. The rotation of the driven gear 45 will drive the rotating ring 8 to rotate. The rotating ring 8 rotates When the fin tube 6 is rotated, the brush bundle 9 inside is driven to clean the outer surface of the fin tube 6. At this time, the inclined surface of the inclined plate 412 contacts the fin of the fin tube 6, thereby driving the brush bundle 9 to move, thereby driving the piston plate 413 away from the opening of the connecting groove 47, and squeezing the spring 410 at the same time. At this time, the pressurizer 51 will pressurize the inside of the mixing box 52, so that the medicine enters the water storage chamber 56 of the fixing ring 55 through the mixing box 52 and the straight pipe 54, and the medicine enters the water inlet groove 46 through the arc groove 57 connected to the water storage chamber 56, and the medicine is sprayed out from the opening of the connecting groove 47. In this way, the cleaning work of the fin tube 6 can be completed. Example 2: Please refer to Figure 10-11The present invention provides a technical solution: a ring groove 13 is provided on the end face of the fixed ring 55 close to the rotating ring 8, a limit ring 10 is movably provided on the inner wall of the water storage chamber 56, a connecting ring 11 is provided on the end face of the limit ring 10, the connecting ring 11 is movably provided on the inner wall of the ring groove 13, a connecting pipe 12 connected to the water storage chamber 56 is provided inside the connecting ring 11, the outer side of the connecting pipe 12 is provided on the inner wall of the water inlet groove 46, and the arc groove 57 is replaced by the ring groove 13 to continuously supply the medicine-water mixture, which can avoid the occurrence of leakage to a certain extent.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An evaporative heat exchanger with high heat exchange efficiency, comprising a shell (1), a finned tube (6) and a U-shaped tube (3), characterized in that: The housing (1) is provided with side panels (2) on both sides of the inner wall, and further comprises: A rotating ring (8) is movably sleeved on the outer surface of the fin tube (6), and a plurality of rotating rings are provided; A brush bundle (9) is movably arranged inside the rotating ring (8), a plurality of brush bundles are provided, and are directly opposite to the outer surface of the fin tube (6); A driving plate (7) is movably sleeved on the outer surface of the fin tube (6), and the rotating ring (8) is movably arranged on the side of the driving plate (7); A reciprocating cleaning unit (4), the reciprocating cleaning unit (4) being arranged in the housing (1) and used for driving the driving plate (7) to move, thereby driving the rotating ring (8) to move, and the rotating ring (8) drives a plurality of brush bundles (9) inside to rotate and move, thereby cleaning the outer surface of the fin tube (6); A water spray assembly (5) is arranged on the side plate (2) and is used to spray a cleaning liquid mixture onto the fin tube (6) during the movement of the drive plate (7), and cooperate with the brush bundle (9) to clean the fin tube (6).

2. The evaporative heat exchanger with high heat exchange efficiency according to claim 1, characterized in that: The reciprocating cleaning unit (4) comprises two ball screws (42) arranged between the two side plates (2), the outer surfaces of the two ball screws (42) are movably provided with transmission gears (44), and the thread directions of the two ball screws (42) are opposite, a chain (43) is arranged between the two transmission gears (44), and a driven gear (45) is movably arranged between the chains (43), and the driven gear (45) is movably sleeved on the outer surface of the fin tube (6).

3. The evaporative heat exchanger with high heat exchange efficiency according to claim 2, characterized in that: The end surface of the driven gear (45) is fixedly connected to the rotating ring (8); a connecting groove (47) is provided on the inner wall of the rotating ring (8); a piston disc (413) is movably provided on the inner wall of the connecting groove (47); the bottom end of the piston disc (413) is fixedly provided on the top end of the brush bundle (9); and the brush bundle (9) is movably provided inside the connecting groove (47).

4. The evaporative heat exchanger with high heat exchange efficiency according to claim 3 is characterized in that: The inner wall of the connecting groove (47) is provided with a circular groove (48), the inner wall of the circular groove (48) is movably provided with a guide rod (49), the bottom end of the guide rod (49) is arranged on the top end of the piston plate (413), the outer surface of the guide rod (49) is sleeved with a spring (410), one end of the spring (410) is arranged on the inner wall of the connecting groove (47), and the end surface of the rotating ring (8) is provided with a water inlet groove (46) connected to the connecting groove (47).

5. The evaporative heat exchanger with high heat exchange efficiency according to claim 4, characterized in that: The inner wall of the rotating ring (8) is provided with two straight grooves (411) which are interconnected with the connecting groove (47); the outer side of the brush bundle (9) is provided with two inclined plates (412); the two inclined plates (412) are movably arranged on the inner wall of the straight groove (411); and the interior of the housing (1) is provided with a driving member (41) for driving the driving plate (7) to move.

6. The evaporative heat exchanger with high heat exchange efficiency according to claim 5, characterized in that: The driving member (41) comprises a threaded rod (4102) arranged on both sides of the inner wall of the housing (1); one end of the threaded rod (4102) passes through the inner wall of the housing (1) and is provided with a motor (4101); the motor (4101) is arranged on the side of the housing (1); and the driving plate (7) is threadedly connected to the outer surface of the threaded rod (4102).

7. The evaporative heat exchanger with high heat exchange efficiency according to claim 1, characterized in that: The water spray assembly (5) comprises two legs (53) arranged on the top of the driving plate (7); a mixing box (52) is arranged at the top of the legs (53); a pressurizer (51) is arranged on the mixing box (52); a straight pipe (54) interconnected with the inside of the mixing box (52) is arranged at the bottom of the mixing box (52); a plurality of fixing rings (55) are fixedly embedded in the inside of the driving plate (7); the end faces of the plurality of fixing rings (55) are rotatably arranged on the end faces of corresponding rotating rings (8).

8. The evaporative heat exchanger with high heat exchange efficiency according to claim 7, characterized in that: A water storage cavity (56) is provided inside each of the plurality of fixing rings (55); the bottom end of the straight tube (54) penetrates the outer surface of the corresponding fixing ring (55) and is interconnected with the water storage cavity (56); and a mutually communicating straight tube (54) is provided between each two adjacent fixing rings (55).

9. The evaporative heat exchanger with high heat exchange efficiency according to claim 8, characterized in that: An arc-shaped groove (57) is formed on the end surface of the fixed ring (55) close to the rotating ring (8), and the arc-shaped groove (57) is connected to the water inlet groove (46), and the water inlet groove (46) is connected to the water storage chamber (56) through the arc-shaped groove (57).

10. The evaporative heat exchanger with high heat exchange efficiency according to claim 9, characterized in that: The fixed ring (55) is provided with an annular groove (13) on the end surface close to the rotating ring (8); a limit ring (10) is movably provided on the inner wall of the water storage chamber (56); a connecting ring (11) is provided on the end surface of the limit ring (10); the connecting ring (11) is movably provided on the inner wall of the annular groove (13); a connecting pipe (12) connected to the water storage chamber (56) is provided inside the connecting ring (11); and the outer side of the connecting pipe (12) is provided on the inner wall of the water inlet groove (46).

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