Acid mist treatment cooling device

Abstract

An acid mist treatment cooling device, wherein the bottom baffle is arranged on the inner bottom surface of the shell; the diffuser is connected to the air inlet pipe; the top baffle is arranged on the inner top surface of the shell; the first acid mist pipe is arranged at the convection heat exchange cavity; the spray main pipe is arranged on the outer side of the bottom end of the top baffle; the spray pump is arranged on the spray main pipe; the spray branch pipe is arranged on the outer side of the first acid mist pipe; the nozzle is arranged at the bottom end of the spray branch pipe; the suspension rod is arranged on one side of the top end of the spray branch pipe; the second acid mist pipe is arranged in the freezing water cavity; the acid mist confluence pipe is arranged at the inner top end of the freezing water cavity; the bottom end of the acid mist discharge pipe is connected to the top end of one side of the second acid mist pipe; the exhaust pipe is arranged in the freezing water cavity; the spoiler motor is fixed to the shell through the motor bracket, and the spoiler blade is arranged at the bottom end of the rotating shaft. The device of the present invention has a compact structure, performs multi-stage heat exchange on the acid mist, and has high cooling efficiency.

Description

Technical Field

[0001] The invention relates to the field of acid mist treatment equipment, in particular to an acid mist treatment cooling device. Background Art

[0002] The pickling line plays a key role before cold rolling production in the field of steel metallurgy. Its main function is to remove the iron oxide scale and dirt on the surface of the strip steel coil from the hot rolling mill by mechanical and chemical effects to obtain a strip steel with a clean surface. During the pickling process of the pickling line, the acid solution is accompanied by evaporation, and the acid solution evaporates to form acid mist, which is uniformly removed and collected through the acid mist removal pipeline. The acid mist needs to be purified before it can be discharged into the atmosphere. The process of purifying the acid mist requires neutralization, cooling and other steps to ensure that there are no harmful substances in the acid mist and the exhaust gas is in a neutral state. During the purification process of the acid mist, after the acid mist is mixed and neutralized with the alkaline solution, the process is accompanied by the generation of a large amount of heat, forming hot air with a high temperature. The hot air needs to be cooled, so a cooling device for acid mist treatment is required. In the existing cooling device structure, the neutralized acid mist is generally passed into the heat exchanger structure through a pipe, and the acid mist and chilled water are used for water heat exchange. In this process, the flowability of the chilled water is poor and the contact area with the acid mist pipe is small, which directly leads to low heat exchange efficiency, low cooling treatment rate of the acid mist, and poor cooling effect. Summary of the invention

[0003] In order to solve the above-mentioned problems, the present invention discloses an acid mist treatment cooling device, and its specific technical scheme is as follows: an acid mist treatment cooling device comprises a shell, a bottom baffle, an air inlet pipe, a diffuser, a top baffle, a first acid mist pipe, a spray main pipe, a spray pump, a spray branch pipe, a nozzle, a hanger, a second acid mist pipe, an acid mist confluence pipe, an acid mist discharge pipe, an exhaust pipe, a spoiler motor, a rotating shaft and a spoiler blade;

[0004] The shell is a cylindrical hollow structure; the bottom partition is arranged on the inner bottom surface of the shell and is fixed to the inner side wall of the shell, the bottom end of the bottom partition and the bottom of the shell form an acid mist cavity, an acid mist inlet pipe is provided on the bottom side of one end of the shell, and the acid mist inlet pipe is connected with one side of the acid mist cavity; the air inlet pipe is arranged on one side of the bottom end of the shell, the air inlet pipe passes through the acid mist cavity and extends into the central top surface of the bottom partition, the diffuser is arranged on the top surface of the bottom partition, and the diffuser is connected with the air inlet pipe; the top partition is arranged on the inner top surface of the shell and is fixed to the inner side wall of the shell, the top end of the bottom partition and the bottom end of the top partition form a convection heat exchange cavity, and a drain pipe is provided at the bottom end of one side of the convection heat exchange cavity; the top end of the top partition and the top of the shell form a chilled water cavity, a chilled water inlet pipe is provided at the bottom end of one side of the chilled water cavity, and a chilled water outlet pipe is provided at the top end of one side of the chilled water cavity;

[0005] The first acid mist pipe is arranged at the convection heat exchange cavity in a longitudinal direction, the first acid mist pipe is circumferentially arranged in the convection heat exchange cavity, the bottom end of the first acid mist pipe passes through the bottom partition plate and is connected with the acid mist cavity, and the top end of the first acid mist pipe passes through the top partition plate and extends into the chilled water cavity; each first acid mist outer wall is circumferentially provided with a first heat exchange fin, and the first heat exchange fin and the first acid mist pipe are arranged in the same direction;

[0006] The spray main pipe is arranged on the outer side of the bottom end of the top partition, each of the spray main pipes is arranged on a side corresponding to the first acid mist pipe, the top end of the spray main pipe passes through the top partition and is connected with the freezing water cavity; the spray pump is arranged on the spray main pipe; the spray branch pipe is arranged on the outer side of the first acid mist pipe, and the spray main pipe is connected with the spray branch pipe; the nozzle is arranged at the bottom end of the spray branch pipe; the suspension rod is arranged on one side of the top end of the spray branch pipe, the bottom end of the suspension rod is fixed to the spray branch pipe, and the top end of the suspension rod is fixed to the bottom surface of the top partition;

[0007] The second acid mist pipe is arranged in the freezing water cavity, and the bottom end of each second acid mist pipe is connected with the top end of each corresponding first acid mist pipe; the acid mist manifold is arranged at the inner top end of the freezing water cavity, and the top end of each second acid mist pipe is connected with the acid mist manifold; the bottom end of the acid mist discharge pipe is connected with the top end of one side of the second acid mist pipe, and the top end of the acid mist discharge pipe extends out of the top surface of the shell; the exhaust pipe is arranged in the freezing water cavity, and is symmetrical on both sides, one end of the exhaust pipe on each side is connected with the convection heat exchange cavity, and one end of the exhaust pipe extends out of the shell;

[0008] The spoiler motor is arranged at the center of the top surface of the shell, and the spoiler motor is fixed to the shell through a motor bracket. The rotating shaft is arranged in the freezing water chamber, and the rotating shaft rotates coaxially with the spoiler motor. The spoiler blade is arranged at the bottom end of the rotating shaft.

[0009] Furthermore, a fan is provided on one end surface of the air inlet pipe, and the fan is fixedly arranged on the outer wall surface of the shell.

[0010] Furthermore, the diffuser includes a diffusion connection pipe and a diffusion cavity, the diffusion connection pipe is connected to the air inlet pipe, and the diameter of the diffusion connection pipe is slightly smaller than the diameter of the air inlet pipe; the diffusion cavity is arranged on the top surface of the diffusion connection pipe, the top surface of the diffusion cavity is a hemispherical structure, and the bottom end of the diffusion cavity is provided with diffusion holes, the diffusion holes are circumferentially arranged on the outside of the diffusion connection pipe, and each of the diffusion holes is arranged downward.

[0011] Furthermore, the center of the top partition is in a truncated cone-shaped structure, and a top condensation water trough is formed on the bottom side of the center of the top partition.

[0012] Furthermore, the bottom end of the first acid mist pipe is a bucket-shaped structure with a narrow top and a wide bottom; each of the first acid mist pipes is circumferentially arranged with the diffuser as the center.

[0013] Furthermore, each of the first acid mist tubes is provided with eight first heat exchange fins, each of the first heat exchange fins is centripetally arranged with the center of the first acid mist tube as the center, and both ends of each of the first heat exchange fins are in a hypotenuse shape.

[0014] Furthermore, the spray branch pipe has a circular ring structure, and the spray branch pipe is arranged in an outer circle of the first acid mist pipe. There are two layers of spray branch pipes arranged outside each first acid mist pipe. The top layer of the spray branch pipe is arranged at the top of the first acid mist pipe, and the bottom layer of the spray branch pipe is arranged at the middle end of the first acid mist pipe.

[0015] Furthermore, the nozzles are circumferentially arranged at the bottom end of the spray branch pipe, and each of the nozzles is arranged obliquely toward the first acid mist pipe.

[0016] Furthermore, each of the second acid mist tubes has a "C"-shaped structure; a second heat exchange plate is provided on one side of each of the second acid mist tubes, the second heat exchange plate is attached to the outer wall of the second acid mist tube, and second heat exchange plate holes are provided on the surface of the second heat exchange plate, and the second heat exchange plate holes are arranged in an array.

[0017] Furthermore, the acid mist conduit is in a circular ring structure.

[0018] Furthermore, the exhaust duct on each side is in an "L"-shaped structure.

[0019] Furthermore, the spoiler blade is arranged on the top surface of the top partition, and both ends of the spoiler blade extend into the side wall of the second acid mist pipe; the spoiler blade is in a herringbone structure.

[0020] The beneficial effects of the present invention are:

[0021] After the acid mist is passed into the cooling device, the acid mist is subjected to a convection heat exchange mode in the shell and a water area heat exchange mode, and the acid mist is passed through a pipeline and sprayed with chilled water outside the pipeline, and ventilation convection is performed at the same time, so that the chilled water outside the pipeline quickly absorbs heat and evaporates, and the acid mist is quickly cooled once by evaporation heat absorption mode. This evaporation heat absorption cooling mode has higher cooling efficiency than the traditional shell and tube heat exchange mode; the acid mist is subjected to a secondary water area heat exchange mode, and the chilled water is made to have a higher turbulence by rotating blades, so as to increase the speed at which the water flow contacts the pipeline and improve the heat exchange efficiency; the overall device performs multiple stream diversions on the acid mist and performs primary and secondary cooling treatments, the device has extremely high heat exchange cooling effect, high cooling efficiency, and the device performs high system integration treatment, and the overall structure of the device is compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0023] Figure 2 The present invention Figure 1 A partial cross-sectional view of.

[0024] Figure 3 It is a structural schematic diagram of the spray branch pipe and the first acid mist pipe of the present invention.

[0025] List of reference numerals:

[0026] Shell 1;

[0027] Acid mist chamber 1-1, acid mist inlet pipe 1-2, flow heat exchange chamber 1-3, drain pipe 1-4, chilled water chamber 1-5, chilled water inlet pipe 1-6, chilled water outlet pipe 1-7;

[0028] Bottom partition 2;

[0029] Air inlet pipe 3;

[0030] Fan 3-1;

[0031] Diffuser 4;

[0032] Bulk flow connecting pipe 4-1, bulk flow cavity 4-2, bulk flow hole 4-3;

[0033] Top partition 5;

[0034] Top condensation tank 5-1;

[0035] The first acid mist pipe 6;

[0036] First heat exchanger fin 6-1;

[0037] Spray main 7;

[0038] Spray pump 8;

[0039] Spray branch pipe 9;

[0040] Nozzle 10;

[0041] Boom 11;

[0042] A second acid mist pipe 12;

[0043] A second heat exchange fin 12-1 and a second heat exchange fin hole 12-2;

[0044] Acid mist manifold 13;

[0045] Acid mist discharge pipe 14;

[0046] Exhaust duct 15;

[0047] Spoiler motor 16;

[0048] Motor bracket 16-1;

[0049] Rotation axis 17;

[0050] The spoiler blades 18. DETAILED DESCRIPTION

[0051] In order to make the technical solution of the present invention clearer, the present invention is further described below in conjunction with the accompanying drawings. Any equivalent replacement of the technical features of the technical solution of the present invention and any solution derived by conventional reasoning shall fall within the protection scope of the present invention. The fixed connection, fixed setting, and fixed structure mentioned in this embodiment are all well-known technologies known to those skilled in the art such as gluing, welding, screw connection, bolt and nut connection, and riveting.

[0052] As can be seen from the accompanying drawings, an acid mist treatment cooling device comprises a shell 1, a bottom baffle 2, an air inlet pipe 3, a diffuser 4, a top baffle 5, a first acid mist pipe 6, a spray main pipe 7, a spray pump 8, a spray branch pipe 9, a nozzle 10, a boom 11, a second acid mist pipe 12, an acid mist confluence pipe 13, an acid mist discharge pipe 14, an exhaust pipe 15, a spoiler motor 16, a rotating shaft 17 and a spoiler blade 18;

[0053] The shell 1 is a columnar hollow structure; the bottom baffle 2 is arranged on the inner bottom surface of the shell 1 and is fixed to the inner side wall of the shell 1, the bottom end of the bottom baffle 2 and the bottom of the shell 1 form an acid mist cavity 1-1, an acid mist inlet pipe 1-2 is arranged on the bottom side of one end of the shell 1, and the acid mist inlet pipe 1-2 is connected to one side of the acid mist cavity 1-1; the air inlet pipe 3 is arranged on one side of the bottom end of the shell 1, the air inlet pipe 3 passes through the acid mist cavity 1-1 and extends into the central top surface of the bottom baffle 2, and the diffuser 4 is arranged on the bottom baffle 2 The top surface of the shell 1, the diffuser 4 is connected with the air inlet pipe 3; the top partition plate 5 is arranged on the inner top surface of the shell 1 and is fixed to the inner side wall of the shell 1, the top end of the bottom partition plate 2 and the bottom end of the top partition plate 5 form a convection heat exchange chamber 1-3, and a drain pipe 1-4 is provided at the bottom end of one side of the convection heat exchange chamber 1-3; the top end of the top partition plate 5 and the top of the shell 1 form a chilled water chamber 1-5, and a chilled water inlet pipe 1-6 is provided at the bottom end of one side of the chilled water chamber 1-5, and a chilled water outlet pipe 1-7 is provided at the top end of one side of the chilled water chamber 1-5;

[0054] The first acid mist pipe 6 is arranged at the convection heat exchange cavity 1-3, and is arranged longitudinally. The first acid mist pipe 6 is circumferentially arranged in the convection heat exchange cavity 1-3. The bottom end of the first acid mist pipe 6 passes through the bottom partition plate 2 and is arranged in communication with the acid mist cavity 1-1. The top end of the first acid mist pipe 6 passes through the top partition plate 5 and extends into the chilled water cavity 1-5. The outer side wall of each first acid mist is circumferentially provided with a first heat exchange plate 6-1, and the first heat exchange plate 6-1 and the first acid mist pipe 6 are arranged in the same direction;

[0055] The spray main pipe 7 is arranged on the outer side of the bottom end of the top partition 5, each of the spray main pipes 7 is arranged on a side corresponding to the first acid mist pipe 6, the top end of the spray main pipe 7 passes through the top partition 5 and is connected with the freezing water chamber 1-5; the spray pump 8 is arranged on the spray main pipe 7; the spray branch pipe 9 is arranged on the outer side of the first acid mist pipe 6, and the spray main pipe 7 is connected with the spray branch pipe 9; the nozzle 10 is arranged at the bottom end of the spray branch pipe 9; the suspension rod 11 is arranged on one side of the top end of the spray branch pipe 9, the bottom end of the suspension rod 11 is fixed to the spray branch pipe 9, and the top end of the suspension rod 11 is fixed to the bottom surface of the top partition 5;

[0056] The second acid mist pipe 12 is arranged in the freezing water cavity 1-5, and the bottom end of each second acid mist pipe 12 is connected with the top end of each corresponding first acid mist pipe 6; the acid mist manifold 13 is arranged at the inner top end of the freezing water cavity 1-5, and the top end of each second acid mist pipe 12 is connected with the acid mist manifold 13; the bottom end of the acid mist discharge pipe 14 is connected with the top end of one side of the second acid mist pipe 12, and the top end of the acid mist discharge pipe 14 extends out of the top surface of the shell 1; the exhaust pipe 15 is arranged in the freezing water cavity 1-5, and is symmetrical on both sides, one end of the exhaust pipe 15 on each side is connected with the convection heat exchange cavity 1-3, and one end of the exhaust pipe 15 extends out of the shell 1;

[0057] The spoiler motor 16 is arranged at the center of the top surface of the shell 1, and the spoiler motor 16 is fixed to the shell 1 through a motor bracket 16-1. The rotating shaft 17 is arranged in the freezing water chamber 1-5, and the rotating shaft 17 rotates coaxially with the spoiler motor 16. The spoiler blade 18 is arranged at the bottom end of the rotating shaft 17.

[0058] Furthermore, a fan 3 - 1 is provided on one end surface of the air inlet pipe 3 , and the fan 3 - 1 is fixedly arranged on the outer wall surface of the shell 1 .

[0059] Furthermore, the diffuser 4 includes a diffuser connecting pipe 4-1 and a diffuser cavity 4-2, the diffuser connecting pipe 4-1 is connected to the air inlet pipe 3, and the diameter of the diffuser connecting pipe 4-1 is slightly smaller than the diameter of the air inlet pipe 3; the diffuser cavity 4-2 is arranged on the top surface of the diffuser connecting pipe 4-1, and the top surface of the diffuser cavity 4-2 is a hemispherical structure, and the bottom end of the diffuser cavity 4-2 is provided with diffuser holes 4-3, and the diffuser holes 4-3 are circumferentially arranged on the outside of the diffuser connecting pipe 4-1, and each of the diffuser holes 4-3 is arranged downward.

[0060] Furthermore, the center of the top partition plate 5 is in a truncated cone-shaped structure, and a top condensation water tank 5 - 1 is formed on the bottom side of the center of the top partition plate 5 .

[0061] Furthermore, the bottom end of the first acid mist pipe 6 is in a bucket-shaped structure with a narrow top and a wide bottom; each of the first acid mist pipes 6 is circumferentially arranged with the diffuser 4 as the center.

[0062] Furthermore, each of the first acid mist tubes 6 is provided with eight first heat exchange fins 6-1, each of which is centripetally arranged with the center of the first acid mist tube 6 as the center, and both ends of each of the first heat exchange fins 6-1 are in a hypotenuse shape.

[0063] Furthermore, the spray branch pipe 9 has a circular ring structure, and the spray branch pipe 9 is arranged in an outer circle of the first acid mist pipe 6. There are two layers of spray branch pipes 9 arranged outside each first acid mist pipe 6. The top layer of the spray branch pipe 9 is arranged at the top of the first acid mist pipe 6, and the bottom layer of the spray branch pipe 9 is arranged at the middle end of the first acid mist pipe 6.

[0064] Furthermore, the nozzles 10 are circumferentially arranged at the bottom end of the spray branch pipe 9 , and each of the nozzles 10 is arranged obliquely toward the first acid mist pipe 6 .

[0065] Furthermore, each of the second acid mist tubes 12 has a "C"-shaped structure; a second heat exchange plate 12-1 is provided on one side of each of the second acid mist tubes 12, the second heat exchange plate 12-1 is attached to the outer wall of the second acid mist tube 12, and the surface of the second heat exchange plate 12-1 is provided with second heat exchange plate holes 12-2, and the second heat exchange plate holes 12-2 are arranged in an array.

[0066] Furthermore, the acid mist conduit 13 is in a circular ring structure.

[0067] Furthermore, the exhaust pipe 15 on each side is in an "L"-shaped structure.

[0068] Furthermore, the spoiler blade 18 is disposed on the top surface of the top partition plate 5, and both ends of the spoiler blade 18 extend into the side wall of the second acid mist pipe 12; the spoiler blade 18 is in a herringbone structure.

[0069] The structural principle of the present invention is:

[0070] The acid mist enters the acid mist chamber through the acid mist inlet pipe, and is branched from the acid mist chamber into multiple first acid mist pipes. At the same time, the air outside the shell enters the convection heat exchange chamber through the air inlet pipe, and the chilled water enters the chilled water chamber through the chilled water inlet pipe and fills the chilled water chamber. A part of the chilled water enters the spray branch pipe through the spray main pipe through the suction action of multiple spray pumps, and is sprayed obliquely on the first acid mist pipe and the first heat exchange plate from the nozzle. The acid mist with higher temperature in the first acid mist pipe exchanges heat with the chilled water, and the outer wall of the first acid mist pipe exchanges heat with the air to accelerate the evaporation heat exchange of the chilled water outside the first acid mist pipe, and the convection air rises and is discharged through the exhaust pipe. The shell, a part of the chilled water outside the first acid mist pipe evaporates and rises, contacts with the colder top partition, condenses and drips at the top condensation water tank, a part of the chilled water outside the first acid mist pipe directly flows down along the first acid mist pipe to the bottom partition, and is discharged from the shell from the drain pipe; the acid mist in the first acid mist pipe enters the second acid mist pipe after heat exchange, the disturbance motor is started to drive the rotating shaft and the disturbance blade to rotate, the disturbance blade drives the chilled water in the chilled water cavity to be disturbed, the cold moving water exchanges heat with the second acid mist pipe, and the second heat exchange plate increases the heat exchange efficiency between the second acid mist pipe and the chilled water; the acid mist in the second acid mist pipe rises and gathers in the acid mist confluence pipe, and is discharged from the shell from the acid mist discharge pipe.

[0071] The beneficial effects of the present invention are:

[0072] After the acid mist is passed into the cooling device, the acid mist is subjected to a convection heat exchange mode in the shell and a water area heat exchange mode, and the acid mist is passed through a pipeline and sprayed with chilled water outside the pipeline, and ventilation convection is performed at the same time, so that the chilled water outside the pipeline quickly absorbs heat and evaporates, and the acid mist is quickly cooled once by evaporation heat absorption mode. This evaporation heat absorption cooling mode has higher cooling efficiency than the traditional shell and tube heat exchange mode; the acid mist is subjected to a secondary water area heat exchange mode, and the chilled water is made to have a higher turbulence by rotating blades, so as to increase the speed at which the water flow contacts the pipeline and improve the heat exchange efficiency; the overall device performs multiple stream diversions on the acid mist and performs primary and secondary cooling treatments, the device has extremely high heat exchange cooling effect, high cooling efficiency, and the device performs high system integration treatment, and the overall structure of the device is compact.

Claims

1. An acid mist treatment cooling device, characterized in that: The invention comprises a shell (1), a bottom partition (2), an air inlet pipe (3), a diffuser (4), a top partition (5), a first acid mist pipe (6), a spray main pipe (7), a spray pump (8), a spray branch pipe (9), a spray head (10), a suspension rod (11), a second acid mist pipe (12), an acid mist confluence pipe (13), an acid mist discharge pipe (14), an exhaust pipe (15), a spoiler motor (16), a rotating shaft (17) and a spoiler blade (18); The shell (1) is a columnar hollow structure; the bottom baffle (2) is arranged on the inner bottom surface of the shell (1) and is fixed to the inner side wall of the shell (1); the bottom end of the bottom baffle (2) and the bottom of the shell (1) form an acid mist cavity (1-1); an acid mist inlet pipe (1-2) is provided on the bottom side of one end of the shell (1); the acid mist inlet pipe (1-2) is communicated with one side of the acid mist cavity (1-1); the air inlet pipe (3) is arranged on one side of the bottom end of the shell (1); the air inlet pipe (3) passes through the acid mist cavity (1-1) and extends into the central top surface of the bottom baffle (2); the diffuser (4) is arranged on the bottom baffle (2 ), the diffuser (4) is connected to the air inlet pipe (3); the top partition (5) is arranged on the inner top surface of the shell (1) and is fixed to the inner side wall of the shell (1); the top end of the bottom partition (2) and the bottom end of the top partition (5) form a convection heat exchange chamber (1-3); a drain pipe (1-4) is provided at the bottom end of one side of the convection heat exchange chamber (1-3); the top end of the top partition (5) and the top of the shell (1) form a chilled water chamber (1-5); a chilled water inlet pipe (1-6) is provided at the bottom end of one side of the chilled water chamber (1-5); and a chilled water outlet pipe (1-7) is provided at the top end of one side of the chilled water chamber (1-5); The first acid mist pipe (6) is arranged at the convection heat exchange chamber (1-3) in a longitudinal direction. The first acid mist pipe (6) is circumferentially arranged in the convection heat exchange chamber (1-3). The bottom end of the first acid mist pipe (6) passes through the bottom partition plate (2) and is arranged in communication with the acid mist chamber (1-1). The top end of the first acid mist pipe (6) passes through the top partition plate (5) and extends into the chilled water chamber (1-5). The outer side wall of each first acid mist is circumferentially provided with a first heat exchange plate (6-1), and the first heat exchange plate (6-1) and the first acid mist pipe (6) are arranged in the same direction. The spray main pipe (7) is arranged on the outer side of the bottom end of the top partition (5), each of the spray main pipes (7) is arranged on a side corresponding to the first acid mist pipe (6), and the top end of the spray main pipe (7) passes through the top partition (5) and is connected to the freezing water chamber (1-5); the spray pump (8) is arranged on the spray main pipe (7); the spray branch pipe (9) is arranged on the outer side of the first acid mist pipe (6), and the spray main pipe (7) is connected to the spray branch pipe (9); the spray head (10) is arranged at the bottom end of the spray branch pipe (9); the suspension rod (11) is arranged on one side of the top end of the spray branch pipe (9), the bottom end of the suspension rod (11) is fixed to the spray branch pipe (9), and the top end of the suspension rod (11) is fixed to the bottom surface of the top partition (5); The second acid mist pipe (12) is arranged in the freezing water cavity (1-5), and the bottom end of each second acid mist pipe (12) is connected to the top end of each corresponding first acid mist pipe (6); the acid mist manifold (13) is arranged at the inner top end of the freezing water cavity (1-5), and the top end of each second acid mist pipe (12) is connected to the acid mist manifold (13); the bottom end of the acid mist discharge pipe (14) is connected to the top end of one side of the second acid mist pipe (12), and the top end of the acid mist discharge pipe (14) extends out of the top surface of the shell (1); the exhaust pipe (15) is arranged in the freezing water cavity (1-5), and is symmetrically arranged on both sides, one end of each side of the exhaust pipe (15) is connected to the convection heat exchange cavity (1-3), and one end of the exhaust pipe (15) extends out of the shell (1); The spoiler motor (16) is arranged at the center of the top surface of the shell (1), the spoiler motor (16) is fixed to the shell (1) through a motor bracket (16-1), the rotating shaft (17) is arranged in the freezing water chamber (1-5), the rotating shaft (17) and the spoiler motor (16) rotate coaxially, and the spoiler blade (18) is arranged at the bottom end of the rotating shaft (17); A fan (3-1) is provided on one end surface of the air inlet pipe (3), and the fan (3-1) is fixedly arranged on the outer wall surface of the housing (1); The center of the top partition (5) is in a truncated cone-shaped structure, and a top condensation water tank (5-1) is formed on the bottom side of the center of the top partition (5).

2. The acid mist treatment cooling device according to claim 1, characterized in that: The diffuser (4) comprises a diffuser connecting pipe (4-1) and a diffuser cavity (4-2); the diffuser connecting pipe (4-1) is connected to the air inlet pipe (3); the diameter of the diffuser connecting pipe (4-1) is slightly smaller than the diameter of the air inlet pipe (3); the diffuser cavity (4-2) is arranged on the top surface of the diffuser connecting pipe (4-1); the top surface of the diffuser cavity (4-2) is in a hemispherical structure; diffuser holes (4-3) are arranged at the bottom end of the diffuser cavity (4-2); the diffuser holes (4-3) are circumferentially arranged on the outside of the diffuser connecting pipe (4-1); and each diffuser hole (4-3) is arranged downward.

3. The acid mist treatment cooling device according to claim 1, characterized in that: The bottom end of the first acid mist pipe (6) is in a bucket-shaped structure with a narrow top and a wide bottom; each of the first acid mist pipes (6) is arranged in a circumferential direction with the diffuser (4) as the center.

4. The acid mist treatment cooling device according to claim 1, characterized in that: The number of the first heat exchange fins (6-1) provided for each of the first acid mist tubes (6) is eight, each of the first heat exchange fins (6-1) is arranged centripetally with the center of the circle of the first acid mist tube (6) as the center, and both ends of each of the first heat exchange fins (6-1) are in the shape of hypotenuses.

5. The acid mist treatment cooling device according to claim 1, characterized in that: The spray branch pipe (9) is in a circular ring structure. The spray branch pipe (9) is arranged around the outer ring of the first acid mist pipe (6). The number of the spray branch pipes (9) arranged outside each first acid mist pipe (6) is two layers. The top layer of the spray branch pipe (9) is arranged at the top end of the first acid mist pipe (6), and the bottom layer of the spray branch pipe (9) is arranged at the middle end of the first acid mist pipe (6).

6. The acid mist treatment cooling device according to claim 1, characterized in that: The nozzles (10) are circumferentially arranged at the bottom end of the spray branch pipe (9), and each nozzle (10) is arranged obliquely toward the first acid mist pipe (6).

7. The acid mist treatment cooling device according to claim 1, characterized in that: Each of the second acid mist tubes (12) has a "C"-shaped structure; a second heat exchange fin (12-1) is provided on one side of each of the second acid mist tubes (12); the second heat exchange fin (12-1) is attached to an outer side wall of the second acid mist tube (12); a surface of the second heat exchange fin (12-1) is provided with second heat exchange fin holes (12-2); the second heat exchange fin holes (12-2) are arranged in an array.

8. The acid mist treatment cooling device according to claim 1, characterized in that: The spoiler blade (18) is arranged on the top surface of the top partition plate (5), and both ends of the spoiler blade (18) extend into the side wall of the second acid mist pipe (12); the spoiler blade (18) is in a herringbone structure.

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