Evaporative heat exchanger with high heat exchange efficiency

Abstract

The application relates to the technical field of heat exchangers, in particular to an evaporative heat exchanger with high heat exchange efficiency, which comprises a shell, finned tubes and U-shaped tubes, the inner wall of the shell is provided with side plates on both sides, a movable sleeve is arranged on the outer surface of the finned tubes, a rotating ring is movably arranged on the side edge of a driving plate, a reciprocating cleaning unit is arranged in the shell and is used for driving the driving plate to move, thereby driving the rotating ring to move, the rotating ring drives multiple brushes inside to rotate and move, thereby cleaning the outer surface of the finned tubes, the evaporative heat exchanger with high heat exchange efficiency can directly clean the outer surface of the finned tubes by sleeving the rotating ring on each fin and arranging multiple brushes in the rotating ring, the reciprocating cleaning unit and a water spraying assembly are arranged to work cooperatively, the brushes are driven to clean the outer surface of the finned tubes multiple times, special cleaning chemical water is used, the cleaning effect can be further improved, and better cleaning work can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchangers, in particular to an evaporative heat exchanger with high heat exchange efficiency. BACKGROUND

[0002] The evaporative heat exchanger is mainly based on the heat absorption principle of water evaporation to realize heat exchange, which is usually composed of heat transfer tube bundles, air flow channels and other parts. The hot fluid flows in the heat transfer tube bundles, and the air flows through the surface of the tube bundles under the action of the fan, and exchanges heat and mass with the water film. The water absorbs the heat of the hot fluid in the evaporation process, so that the hot fluid is cooled, and the air is humidified and heated.

[0003] The existing heat exchanger, such as finned heat exchanger, realizes heat exchange by connecting multiple same copper pipes end to end. However, after a long time of use, dirt will be produced inside, and the accumulation of dirt will reduce the overall heat exchange efficiency. Therefore, the outer surface needs to be cleaned regularly. However, the current cleaning method requires disassembling the finned tube for operation, which is extremely cumbersome. Therefore, we propose an evaporative heat exchanger with high heat exchange efficiency. SUMMARY

[0004] One of the technical problems to be solved by the present application is how to design an evaporative heat exchanger with high heat exchange efficiency for quickly cleaning finned tubes.

[0005] To solve the above technical problems, the present application provides an evaporative heat exchanger with high heat exchange efficiency, which comprises a shell, a finned tube and a U-shaped tube, the inner wall of the shell is provided with side plates on both sides, and further comprises:

[0006] A rotating ring is movably sleeved on the outer surface of the finned tube, which is provided with a plurality of;

[0007] A bundle of brushes is movably arranged in the interior of the rotating ring, which is provided with a plurality of, and is directly opposite to the outer surface of the finned tube;

[0008] A driving plate is movably sleeved on the outer surface of the finned tube, and the rotating ring is movably arranged on the side edge of the driving plate;

[0009] A reciprocating cleaning unit is arranged in the shell, which is used to drive the driving plate to move, and then drive the rotating ring to move, so that the plurality of brush bundles in the interior of the rotating ring are rotated and moved, thereby cleaning the outer surface of the finned tube;

[0010] A water spraying assembly is arranged on the side plate, which is used to spray the cleaning medicinal mixture on the finned tube during the movement of the driving plate, and cooperate with the brush bundle to clean the finned tube.

[0011] In some embodiments, the reciprocating cleaning unit comprises two ball screws arranged between two side plates, the outer surfaces of the two ball screws are movably provided with transmission gears, 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 chain, the driven gear is movably sleeved on the outer surface of the finned tube.

[0012] In some embodiments, the end surface of the driven gear is fixedly connected with a rotating ring, a connecting groove is formed in the inner wall of the rotating ring, a piston disc is movably arranged in the inner wall of the connecting groove, the bottom end of the piston disc is fixedly arranged at the top end of the brush bundle, and the brush bundle is movably arranged in the connecting groove.

[0013] In some embodiments, a circular groove is formed in the inner wall of the connecting groove, a guide rod is movably arranged in the inner wall of the circular groove, the bottom end of the guide rod is arranged at the top end of the piston disc, a spring is sleeved on the outer surface of the guide rod, one end of the spring is arranged in the inner wall of the connecting groove, and a water inlet groove is formed in the end surface of the rotating ring and communicates with the connecting groove.

[0014] In some embodiments, two straight grooves that communicate with the connecting groove are formed in the inner wall of the rotating ring, two inclined plates are arranged on the outer side of the brush bundle, the two inclined plates are movably arranged in the inner wall of the straight grooves, and a driving member for driving the driving plate to move is arranged in the inside of the shell.

[0015] In some embodiments, the driving member comprises threaded rods arranged on both sides of the inner wall of the shell, a motor is arranged at one end of the threaded rod and penetrates the inner wall of the shell, 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.

[0016] In some embodiments, the water spraying assembly comprises two legs arranged on the top of the driving plate, a mixing box is arranged at the top end of the legs, a pressure device is arranged on the mixing box, a straight pipe that communicates with the inside is arranged at the bottom of the mixing box, a plurality of fixed rings are fixedly embedded in the inside of the driving plate, and the end surfaces of the plurality of fixed rings are rotatably arranged on the end surfaces of the corresponding rotating rings.

[0017] In some embodiments, the inside of each of the plurality of fixed rings is provided with a water storage cavity, the bottom end of the straight pipe penetrates the outer surface of the corresponding fixed ring and communicates with the water storage cavity, and a straight pipe that communicates with the water storage cavities is arranged between every two adjacent fixed rings.

[0018] In some embodiments, an arc-shaped groove is formed in the end surface of the fixed ring close to the rotating ring, the arc-shaped groove communicates with the water inlet groove, and the water inlet groove communicates with the water storage cavity through the arc-shaped groove.

[0019] In some embodiments, the fixed ring is provided with a ring groove near the end face of the rotating ring, the inner wall of the water storage cavity is movably provided with a limiting ring, the end face of the limiting ring is provided with a connecting ring, the connecting ring is movably arranged on the inner wall of the ring groove, the inside of the connecting ring is provided with a connecting pipe in communication with the water storage cavity, and the outer side of the connecting pipe is arranged on the inner wall of the water inlet groove.

[0020] The present application has at least the following advantages:

[0021] 1. By sleeving the rotating ring on each fin and arranging a plurality of brush bundles in the rotating ring, the outer surface of the finned tube can be directly cleaned, which enables the cleaning work to be completed without disassembling the finned tube, greatly improving the overall work efficiency.

[0022] 2. The reciprocating cleaning unit cooperates with the water spraying assembly to drive the brush bundles to reciprocally clean the outer surface of the finned tube for multiple times, and the special cleaning chemical water can be used to further improve the cleaning effect and achieve better cleaning work. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0024] Figure 2 It is a schematic diagram of the structure of the side plate, chain and transmission gear of the present application;

[0025] Figure 3 It is a schematic diagram of the structure of the reciprocating cleaning unit of the present application;

[0026] Figure 4 It is a schematic diagram of the structure of the driving plate, driven gear and transmission gear of the present application;

[0027] Figure 5 It is a schematic diagram of the structure of the water spraying assembly of the present application;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the rotating ring of the present application;

[0029] Figure 7 It is a schematic diagram of the structure of the rotating ring, brush bundle, guide rod and fixed ring of the present application;

[0030] Figure 8 It is a schematic diagram of the structure of the fixed ring, spring and inclined plate of the present application;

[0031] Figure 9 It is a schematic diagram of the structure of the inclined plate, guide rod, spring and brush bundle of the present application;

[0032] Figure 10 It is a schematic diagram of the cross-sectional structure of the fixed ring and rotating ring of the present application;

[0033] Figure 11 Structure diagram of fixed ring, limiting ring and connecting ring of the application.

[0034] In the figure: 1, shell; 2, side plate; 3, U-shaped pipe; 4, reciprocating cleaning unit; 41, driving part; 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 spraying assembly; 51, pressurizer; 52, mixing box; 53, leg; 54, straight pipe; 55, fixed ring; 56, water storage cavity; 57, arc-shaped groove; 6, finned pipe; 7, driving plate; 8, rotating ring; 9, brush bundle; 10, limiting ring; 11, connecting ring; 12, connecting pipe; 13, ring groove. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0036] Embodiment 1: Please refer to Figures 1-9 The application provides a technical solution: an evaporative heat exchanger with high heat exchange efficiency, comprising a shell 1, a finned pipe 6 and a U-shaped pipe 3, the inner wall of the shell 1 is provided with a side plate 2 on both sides, further comprising:

[0037] A rotating ring 8 is movably sleeved on the outer surface of the finned pipe 6, which is provided with a plurality of

[0038] A brush bundle 9 is movably arranged in the interior of the rotating ring 8, which is provided with a plurality of, and is directly opposite to the outer surface of the finned pipe 6, and is distributed in a circle in the interior of the rotating ring 8;

[0039] A driving plate 7 is movably sleeved on the outer surface of the finned pipe 6, and the rotating ring 8 is movably arranged on the side edge of the driving plate 7;

[0040] A reciprocating cleaning unit 4 is arranged in the shell 1, which is used for driving the driving plate 7 to move, and further drives the rotating ring 8 to move, the rotating ring 8 drives the plurality of brush bundles 9 in the interior to rotate and move, so as to clean the outer surface of the finned pipe 6;

[0041] A water spraying assembly 5 is arranged on the side plate 2, which is used for spraying the cleaning mixture on the finned pipe 6 during the movement of the driving plate 7, and cooperating with the brush bundle 9 to clean the finned pipe 6.

[0042] 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, the screw 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 chain 43, the driven gear 45 movably sheaths the outer surface of the finned tube 6, and the ball screw generates when the transmission gear 44 moves, which drives the transmission gear 44 to rotate, thereby driving the chain 43 to rotate.

[0043] The end surface of the driven gear 45 is fixedly connected with the rotating ring 8, the inner wall of the rotating ring 8 is provided with a connecting groove 47, the inner wall of the connecting groove 47 is movably provided with a piston disc 413, the bottom end of the piston disc 413 is fixedly arranged at the top end of the brush bundle 9, and the brush bundle 9 is movably arranged in the connecting groove 47. The piston disc 413 arranged when the brush bundle 9 descends will spray the medicinal liquid.

[0044] 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 at the top end of the piston disc 413, the outer surface of the guide rod 49 is sheathed 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 in communication with the connecting groove 47. Through the arrangement of the spring 410, the brush bundle 9 can be pressed between the fins of the finned tube 6.

[0045] The inner wall of the rotating ring 8 is provided with two straight grooves 411 in communication 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 inside of the shell 1 is provided with a driving piece 41 for driving the driving plate 7 to move. When the inclined surface of the inclined surface contacts the finned tube 6, the piston disc 413 will be driven to open, so that when it reaches the fins of the finned tube 6, the medicinal liquid is sprayed for cleaning, and when it does not contact the fins, the medicinal liquid can be prevented from being sprayed.

[0046] The driving piece 41 comprises threaded rods 4102 arranged on the inner walls of the shell 1 on both sides, one end of the threaded rod 4102 penetrates the inner wall of the shell 1 and is provided with a motor 4101, the motor 4101 is arranged on the side edge of the shell 1, and the driving plate 7 is screw-connected on the outer surface of the threaded rod 4102. The motor 4101 arranged drives the threaded rod 4102 to rotate, thereby driving the driving plate 7 to move.

[0047] The water spraying assembly 5 comprises two legs 53 arranged on the top of the driving plate 7, the top end of the leg 53 is provided with a mixing box 52, the mixing box 52 is provided with a pressurizer 51, the bottom of the mixing box 52 is provided with a straight pipe 54 which is in communication with the inside, the inside of the driving plate 7 is fixedly embedded with a plurality of fixed rings 55, the end face of each fixed ring 55 is rotatably arranged on the end face of the corresponding rotating ring 8, each fixed ring 55 is connected in series through the arranged straight pipe 54, and the pressurizer 51 pressurizes the inside of the mixing box 52, so that the medicine water can enter the inside of each fixed ring 55 through the straight pipe 54.

[0048] The inside of each fixed ring 55 is provided with a water storage cavity 56, the bottom end of the straight pipe 54 penetrates through the outer surface of the corresponding fixed ring 55 and is in communication with the water storage cavity 56, and the straight pipes 54 between every two adjacent fixed rings 55 are in communication, the medicine water enters the water storage cavity 56 through the straight pipe 54.

[0049] The end face of the fixed ring 55 close to the rotating ring 8 is provided with an arc-shaped groove 57, the arc-shaped groove 57 is in communication with the water inlet groove 46, and the water inlet groove 46 is in communication with the water storage cavity 56 through the arc-shaped groove 57, when the water inlet groove 46 rotates to the arc-shaped groove 57, the medicine water enters the water inlet groove 46 through the arc-shaped groove 57, and then is sprayed to the outer surface of the finned tube 6.

[0050] When the device is used, first, the motor 4101 drives the threaded rod 4102 to move, the threaded rod 4102 drives the driving plate 7 to move, the driving plate 7 drives the fixed ring 55 and the rotating ring 8 inside to move when moving, the rotating ring 8 drives the driven gear 45 to move when moving, so that 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 rotates in the moving process, so as to drive the driven gear 45 to rotate, the driven gear 45 rotates to drive the rotating ring 8 to rotate, the rotating ring 8 drives the brush bundle 9 inside to clean the outer surface of the finned tube 6 when rotating, at this time, the inclined surface of the inclined plate 412 contacts the fin of the finned tube 6, so as to drive the brush bundle 9 to move, thus driving the piston disc 413 to move away from the opening of the connecting groove 47, and at the same time, the spring 410 is pressed, at this time, the pressurizer 51 pressurizes the inside of the mixing box 52, so that the medicine water enters the water storage cavity 56 of the fixed ring 55 through the mixing box 52 and the straight pipe 54, the medicine water enters the water inlet groove 46 through the arc-shaped groove 57 which is in communication with the water storage cavity 56, and the medicine water is sprayed out of the opening of the connecting groove 47, so that the cleaning work of the finned tube 6 is completed through the reciprocating movement.

[0051] Embodiment 2: please refer to Figures 10-11The application provides a technical scheme: the end face of the fixed ring 55 close to the rotating ring 8 is provided with a ring groove 13, the inner wall of the water storage cavity 56 is movably provided with a limiting ring 10, the end face of the limiting ring 10 is provided with a connecting ring 11, the connecting ring 11 is movably arranged on the inner wall of the ring groove 13, the inside of the connecting ring 11 is provided with a connecting pipe 12 which is communicated with the water storage cavity 56, the outer side of the connecting pipe 12 is arranged on the inner wall of the water inlet groove 46, the arc-shaped groove 57 is replaced by the ring groove 13, the medicine-water mixture can be supplied all the time, and the occurrence of the leakage spraying can be avoided to a certain extent.

[0052] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0053] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. An evaporative heat exchanger having high heat exchange efficiency, comprising a housing (1), a finned tube (6) and a U-shaped tube (3), characterized in that: Both sides of the inner wall of the shell (1) are provided with side plates (2), further comprising: A rotating ring (8) movably sleeved on the outer surface of the finned tube (6), which is provided with a plurality of; A brush bundle (9) movably arranged inside the rotating ring (8), which is provided with a plurality of, and is directly opposite to the outer surface of the finned tube (6); A drive plate (7) movably sleeved on the outer surface of the finned tube (6), the rotating ring (8) is movably arranged on the side edge of the drive plate (7); A reciprocating cleaning unit (4) is arranged in the shell (1), which is used for driving the drive plate (7) to move, and then driving the rotating ring (8) to move, the rotating ring (8) drives the plurality of brush bundles (9) inside to rotate and move, so as to clean the outer surface of the finned tube (6); A water spraying assembly (5) is arranged on the side plate (2), which is used for spraying the cleaning mixture on the finned tube (6) during the movement of the drive plate (7), cooperating with the brush bundle (9) to clean the finned tube (6); 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), the screw 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 chain (43), the driven gear (45) is movably sleeved on the outer surface of the finned tube (6); The end surface of the driven gear (45) is fixedly connected with the rotating ring (8), the inner wall of the rotating ring (8) is provided with a connecting groove (47), the inner wall of the connecting groove (47) is movably provided with a piston disc (413), the bottom end of the piston disc (413) is fixedly arranged at the top end of the brush bundle (9), and the brush bundle (9) is movably arranged in the connecting groove (47).

2. The evaporative heat exchanger with high heat exchange efficiency according to claim 1, 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 at the top end of the piston disc (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) communicated with the connecting groove (47).

3. The evaporative heat exchanger with high heat exchange efficiency according to claim 2, characterized in that: The inner wall of the rotating ring (8) is provided with two straight grooves (411) communicated with the connecting groove (47), the outer side of the brush bundle (9) is provided with two inclined plates (412), the inner wall of the straight groove (411) is movably provided with two inclined plates (412), and the inner wall of the shell (1) is provided with a driving member (41) for driving the drive plate (7) to move.

4. The evaporative heat exchanger with high heat exchange efficiency according to claim 3, characterized in that: The driving member (41) comprises threaded rods (4102) arranged on both sides of the inner wall of the shell (1), one end of the threaded rod (4102) penetrates 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 screw-connected to the outer surface of the threaded rod (4102).

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

6. The evaporative heat exchanger with high heat exchange efficiency according to claim 5, characterized in that: The inside of each of the plurality of fixed rings (55) is provided with a water storage cavity (56), the bottom end of the straight pipe (54) penetrates the outer surface of the corresponding fixed ring (55) and is in communication with the water storage cavity (56), and a straight pipe (54) in communication with each other is arranged between every two adjacent fixed rings (55).

7. The evaporative heat exchanger with high heat exchange efficiency according to claim 6, characterized in that: The end face of the fixed ring (55) close to the rotating ring (8) is provided with an arc-shaped groove (57), the arc-shaped groove (57) is in communication with the water inlet groove (46), and the water inlet groove (46) is in communication with the water storage cavity (56) through the arc-shaped groove (57).

8. The evaporative heat exchanger with high heat exchange efficiency according to claim 7, characterized in that: The end face of the fixed ring (55) close to the rotating ring (8) is provided with an annular groove (13), the inner wall of the water storage cavity (56) is movably provided with a limiting ring (10), the end face of the limiting ring (10) is provided with a connecting ring (11), the connecting ring (11) is movably arranged on the inner wall of the annular groove (13), the inside of the connecting ring (11) is provided with a connecting pipe (12) in communication with the water storage cavity (56), and the outer side of the connecting pipe (12) is arranged on the inner wall of the water inlet groove (46).

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