Efficient cold water cooling device for diammonium phosphate production

Abstract

The utility model discloses an efficient cold water cooling device for diammonium phosphate production, which comprises a cooling tower, an air inducing module, a water sprinkling module, a filler module and a water collecting tank are sequentially arranged in the cooling tower from top to bottom, and the efficient cold water cooling device is characterized in that a plurality of water outlet ends are arranged at the bottom of the water sprinkling module, and a rotary spraying disc is arranged at each water outlet end; a pre-cooling module is arranged between the rotary spraying disc and the filler module and comprises a plurality of first curved-surface protrusions arranged on the inner wall of the cooling tower, the contact area of water and air is increased by rotating the spraying disc, water is sprayed on the pre-cooling module, the flow path of hot water on the inner wall of the tower is increased through the first curved-surface protrusions, and the cooling efficiency of the cooling tower is improved. The heat exchange time is prolonged, and the cooling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diammonium phosphate production equipment, in particular to a cooling device for efficient cold water used in the production of diammonium phosphate. Background Art

[0002] During the existing production process of diammonium phosphate, it is necessary to use a cooling tower to cool hot water and then use it. The cooling tower selects a forced-draft cooling tower. The outside cold air is introduced into the cooling tower through the air induction module, and after spraying water through the water spraying module, it exchanges heat with the cold air, and then enters the packing module to continue heat exchange. After the heat exchange is completed, it enters the water collecting tank and is led out from the water outlet to enter the cycle. After cyclic cooling, it is ready for use. The problems existing in the existing cooling tower are as follows:

[0003] 1. Most of the nozzles in the water spraying module output vertically downward, the contact area between water and air is small, the contact time is short, the cooling effect is not good, and the water that has not been cooled much directly enters the packing module;

[0004] 2. The packing module is mostly composed of a number of packing plates arranged at equal intervals in the horizontal direction to form a packing layer. The surface of the packing plate is smooth, and only the bent shape of the packing plate provides the heat exchange area, and the heat exchange effect needs to be improved. Summary of the Utility Model

[0005] The utility model provides a cooling device for efficient cold water used in the production of diammonium phosphate, aiming to solve the problems of poor cooling effect caused by less contact area between water and air and short heat exchange time during the use of the above-mentioned cooling tower.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A cooling device for efficient cold water used in the production of diammonium phosphate includes a cooling tower. Inside the cooling tower, an air induction module, a water sprinkling module, a packing module and a water collecting tank are sequentially arranged from top to bottom. The bottom of the water sprinkling module is provided with a number of water outlet ends, and each water outlet end is provided with a rotary spraying disc. A pre-cooling module is arranged between the rotary spraying disc and the packing module. The pre-cooling module includes a number of first curved protrusions arranged on the inner wall of the tower of the cooling tower.

[0008] Preferably, the water sprinkling module includes a water inlet pipe. The water outlet end of the water inlet pipe penetrates through the cooling tower and is provided with a water storage tray. A number of water guiding pipes are equidistantly arranged around the axis outside the water storage tray. Each water guiding pipe extends radially, and the end of each water guiding pipe is bent downward and is provided with a rotary spraying disc.

[0009] More preferably, the water storage tray is concentric and coaxial with the cooling tower and is communicated with the water inlet pipe.

[0010] Furthermore, the precooling module includes a tower inner wall located between the rotating spray disc and the filling module, and multiple layers of raised belts are arranged on the tower inner wall at equal intervals along the axial direction, and each layer of raised belt includes a plurality of first curved surface protrusions arranged at equal intervals around the axis.

[0011] Furthermore, the first curved surface protrusion is hemispherical.

[0012] Specifically, the packing module comprises a plurality of packing plates arranged at equal intervals, and a plurality of second curved surface protrusions arranged at equal intervals are provided on the front and back sides of the packing plates.

[0013] More specifically, the second curved surface protrusion is hemispherical.

[0014] Preferably, the air induction module comprises a motor and a fan cooperating with an output shaft of the motor.

[0015] As a more preferred embodiment, a water outlet is provided at a middle position of the bottom of the water collecting trough, and a plurality of supporting legs are provided at equal intervals around the water outlet at the bottom of the water collecting trough.

[0016] Beneficial effects of the utility model:

[0017] The utility model uses a water sprinkling module and a rotating spraying turntable to sprinkle water in the water pipe, thereby increasing the contact area between water and air and improving the cooling efficiency;

[0018] Secondly, the pre-cooling module is designed so that the splashed water contacts the inner wall of the tower and increases the flow of water on the inner wall of the tower through the first curved surface protrusion, thereby increasing the heat exchange time and improving the cooling effect;

[0019] Finally, a second curved protrusion is provided on the basis of the packing plate of the packing module to increase the flow of water on the packing plate and the heat exchange time, thereby further improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the planar internal structure of the utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of the pre-cooling module of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of a packing plate of a packing module of the utility model;

[0023] Figure 4 It is a top three-dimensional schematic diagram of the sprinkler module of the utility model;

[0024] Figure 5 It is a bottom three-dimensional schematic diagram of the sprinkler module of the utility model;

[0025] In the figure: 1. Cooling tower;

[0026] 2. Air induction module; 201. Motor; 202. Fan;

[0027] 3. Water sprinkling module; 301. Water inlet pipe; 302. Water storage tray; 303. Water diversion pipe; 304. Rotary sprinkling disc;

[0028] 4. Pre-cooling module; 401. Inner wall of the tower; 402. First curved protrusion;

[0029] 5. Packing module; 501. Packing plate; 502. Second curved protrusion;

[0030] 6. Water collecting trough; 7. Water outlet; 8. Support leg. Detailed implementation manners

[0031] As follows, the embodiments will be further described with reference to the accompanying drawings.

[0032] As Figures 1 to 5 shown, as a preferred Embodiment 1, a cooling device for highly efficient cold water used in the production of diammonium phosphate includes a cooling tower 1. Inside the cooling tower 1, an air induction module 2, a water sprinkling module 3, a packing module 5, and a water collecting trough 6 are successively arranged from top to bottom. This is the conventional setting of the cooling tower 1;

[0033] At the bottom of the water sprinkling module 3, there are several water outlet ends, and each water outlet end is provided with a rotary sprinkling disc 304 to increase the contact area between water and air and improve the cooling efficiency. Between the rotary sprinkling disc 304 and the packing module 5, there is a pre-cooling module 4. The pre-cooling module 4 includes several first curved protrusions 402 provided on the inner wall 401 of the cooling tower 1 to increase the water flow path, thereby prolonging the heat exchange time and improving the cooling effect.

[0034] As a preferred Embodiment 2, the specific structure of the water sprinkling module 3 is provided. The water sprinkling module 3 includes a water inlet pipe 301. The water outlet end of the water inlet pipe 301 penetrates through the cooling tower 1 and is provided with a water storage tray 302. Several water diversion pipes 303 are equidistantly arranged around the axis on the outside of the water storage tray 302. Each water diversion pipe 303 extends radially, and the end of each water diversion pipe 303 bends downward and is provided with a rotary sprinkling disc 304. Hot water enters the water storage tray 302 through the water inlet pipe 301. The hot water in the water storage tray 302 enters each water diversion pipe 303 and is finally sprayed out from the rotary sprinkling disc 304 at the end of each water diversion pipe 303.

[0035] The water storage tray 302 is concentric and coaxial with the cooling tower 1 and is connected to the water inlet pipe 301. This ensures that the water storage tray 302 is in the middle position, and the vertical straight-line distance from each rotary sprinkling disc 304 to the inner wall 401 of the tower is the same, and the cooling effects are all the same.

[0036] Preferably, there are eight water diversion pipes 303.

[0037] As a preferred embodiment 3, a specific structure of a precooling module 4 is provided, wherein the precooling module 4 comprises a tower inner wall 401 located between the rotating spraying disc 304 and the packing module 5, and a plurality of raised belts are provided on the tower inner wall 401 at equal intervals along the axial direction, and each raised belt comprises a plurality of first curved surface protrusions 402 arranged at equal intervals around the axis. The water flow and heat exchange time are improved.

[0038] The first curved protrusion 402 is hemispherical, which is convenient for improving the water flow and heat exchange time.

[0039] As a preferred embodiment 3, a structural change of the filler plate 501 is provided. On the basis of the existing filler plate 501, the filler module 5 includes a plurality of equally spaced filler plates 501, and a plurality of equally spaced second curved protrusions 502 are provided on the front and back sides of the filler plate 501 to improve the water flow and heat exchange time.

[0040] The second curved protrusion 502 is hemispherical, which is convenient for improving the water flow and heat exchange time.

[0041] As a preferred embodiment 4, the air induction module 2 includes a motor 201 and a fan 202 that cooperates with the output shaft of the motor 201. The external cold air is introduced into the tower by conventional existing means.

[0042] A water outlet 7 is provided at the middle position of the bottom of the water collecting tank 6 , and a plurality of supporting legs 8 are provided at equal intervals around the water outlet 7 at the bottom of the water collecting tank 6 .

[0043] The working principle of this utility model:

[0044] The utility model uses the watering module 3 and the rotating spraying turntable 304 to splash the water in the water pipe 303, thereby increasing the contact area between water and air and improving the cooling efficiency;

[0045] Secondly, the pre-cooling module 4 is designed so that the spilled water contacts the tower inner wall 401 and increases the flow of water on the tower inner wall 401 through the first curved protrusion 402, thereby increasing the heat exchange time and improving the cooling effect;

[0046] Finally, a second curved protrusion 502 is provided on the basis of the packing plate 501 of the packing module 5 to increase the flow of water on the packing plate 501 and the heat exchange time, thereby further improving the cooling effect.

Claims

1. A high-efficiency cold water cooling device for diammonium phosphate production, comprising a cooling tower (1), wherein the cooling tower (1) is provided with an air induction module (2), a water sprinkling module (3), a filler module (5) and a water collecting tank (6) in order from top to bottom, characterized in that: The bottom of the watering module (3) is provided with a plurality of water outlets, each of which is provided with a rotating spray disc (304), a precooling module (4) is provided between the rotating spray disc (304) and the filling module (5), and the precooling module (4) comprises a plurality of first curved protrusions (402) provided on the inner wall (401) of the cooling tower (1).

2. The high-efficiency cold water cooling device for diammonium phosphate production according to claim 1, characterized in that: The watering module (3) comprises a water inlet pipe (301), the water outlet end of the water inlet pipe (301) passing through the cooling tower (1) is provided with a water storage tray (302), a plurality of water guide pipes (303) are provided at equal intervals around the axis outside the water storage tray (302), each water guide pipe (303) extends radially, and the end of each water guide pipe (303) is bent downward and provided with a rotating spraying tray (304).

3. The high-efficiency cold water cooling device for diammonium phosphate production according to claim 2 is characterized in that: The water storage tray (302) is coaxial with the cooling tower (1) and is in communication with the water inlet pipe (301).

4. The high-efficiency cold water cooling device for diammonium phosphate production according to claim 3 is characterized in that: The precooling module (4) comprises a tower inner wall (401) located between a rotating spraying disc (304) and a packing module (5), wherein a plurality of raised belts are provided on the tower inner wall (401) at equal intervals along the axial direction, and each raised belt comprises a plurality of first curved surface protrusions (402) arranged at equal intervals around the axis.

5. The high-efficiency cold water cooling device for diammonium phosphate production according to claim 4, characterized in that: The first curved surface protrusion (402) is hemispherical.

6. The high-efficiency cold water cooling device for diammonium phosphate production according to claim 5, characterized in that: The packing module (5) comprises a plurality of packing plates (501) arranged at equal intervals, and a plurality of second curved surface protrusions (502) arranged at equal intervals are provided on the front and back sides of the packing plates (501).

7. The high-efficiency cold water cooling device for diammonium phosphate production according to claim 6, characterized in that: The second curved surface protrusion (502) is hemispherical.

8. The high-efficiency cold water cooling device for diammonium phosphate production according to any one of claims 1 to 7, characterized in that: The air induction module (2) comprises a motor (201) and a fan (202) that cooperates with the output shaft of the motor (201).

9. The high-efficiency cold water cooling device for diammonium phosphate production according to claim 8, characterized in that: A water outlet (7) is provided at the middle position of the bottom of the water collecting trough (6), and a plurality of supporting legs (8) are provided at equal intervals around the water outlet (7) at the bottom of the water collecting trough (6).

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