Cooling tower with demisting function

By installing water suction plates, baffle demisters, and fiber demisters inside the exhaust ducts of cooling towers, the problem of cooling towers lacking demisting function is solved, achieving effective separation and purification of mist droplets, and improving air quality and equipment stability.

CN224230771UActive Publication Date: 2026-05-12SICHUAN SHIFANG DINGLI PHOSPHORUS CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN SHIFANG DINGLI PHOSPHORUS CHEM CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing cooling towers lack defogging capabilities, causing the exhaust vents to directly discharge water mist containing fog particles into the atmosphere, increasing the probability of smog formation.

Method used

Water suction plates, baffle demisters, and fiber demisters are installed inside the exhaust duct of the cooling tower. The three-stage demister structure separates and purifies the mist. Dustproof components are used to prevent dust and foreign objects from entering, ensuring the stability of the equipment.

Benefits of technology

It effectively reduces mist emissions, improves air quality, prevents dust and foreign objects from entering, and enhances equipment stability.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224230771U_ABST
    Figure CN224230771U_ABST
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Abstract

The utility model relates to the technical field of cooling towers, and discloses a cooling tower with a demisting function, which comprises a tower body, the exhaust pipeline is fixedly connected to the top of the tower body; the exhaust fan is mounted in the exhaust pipeline; the baffling demisting plate is mounted at the lower part of the air exhaust pipeline; the fiber demisting plate is mounted at the upper part of the baffling demisting plate, and the water absorbing plate is mounted at the lower part of the baffling demisting plate; the gas inlet is fixedly connected to the left side of the exterior of the tower body; and a dust-proof assembly. According to the cooling tower, the water absorption plate, the baffling demisting plate and the fiber demisting plate are arranged in the exhaust pipeline, so that the cooling tower is additionally provided with a demisting function, water mist with mist particles is prevented from being directly discharged into the atmosphere during exhaust, and the drifting of the mist particles is reduced, so that the air quality of the ambient environment is improved.
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Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, and in particular to a cooling tower with a demisting function. Background Technology

[0002] A cooling tower is a device used for heat dissipation and cooling. It is widely used in industrial production and other scenarios that require heat dissipation. Its basic function is to bring industrial hot water into contact with air, and through the process of water evaporation and air exchange, the heat is carried away, thereby achieving the purpose of lowering the water temperature and recycling it.

[0003] Cooling towers typically consist of a tower body, air inlet, air outlet, and spray structure. During operation, the fan draws air into the tower body through the air inlet. Hot water is pumped to the inside of the heat exchange tubes and then sprayed onto the heat exchange tubes and packing by the spray nozzles. During contact with the air, evaporation and heat exchange occur. The cooled water flows into the water collection tank, and some of the water evaporates into water vapor and is discharged through the air outlet with the airflow.

[0004] Although existing cooling towers can process hot water, they lack defogging capabilities. This causes the exhaust vents to directly release water mist containing fog particles into the atmosphere, increasing the probability of smog formation and thus impacting the environment. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a cooling tower with a defogging function, aiming to improve the problem that the lack of a defogging function in the prior art leads to the direct discharge of water mist containing mist particles into the atmosphere during exhaust, increasing the probability of smog formation.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A cooling tower with demisting function includes:

[0008] tower body;

[0009] An exhaust duct is fixedly connected to the top of the tower body;

[0010] An exhaust fan, which is installed inside the exhaust duct;

[0011] A deflector plate, wherein the deflector plate is installed at the lower part of the exhaust duct;

[0012] A fiber demister plate and a water absorption plate, wherein the fiber demister plate is installed on the upper part of the baffle demister plate, and the water absorption plate is installed on the lower part of the baffle demister plate;

[0013] The air inlet is fixedly connected to the outer left side of the tower body;

[0014] And a dustproof component, which is used to perform dustproof operation on the exhaust duct.

[0015] Furthermore, the dustproof component includes a dustproof plate, which is disposed at the top of the exhaust duct. Arc-shaped blocks are fixedly connected to both sides of the lower part of the dustproof plate. Two arc-shaped blocks are disposed on both sides inside the exhaust duct. Pins are threadedly connected to both sides of the outer part of the exhaust duct.

[0016] Furthermore, a water collection tank is fixedly connected to the bottom of the tower body, a water pump is fixedly connected to the outside right side of the water collection tank, a connecting pipe is fixedly connected to the input end of the water pump, the connecting pipe is fixedly connected to the inside of the water collection tank, a delivery pipe is fixedly connected to the output end of the water pump, a guide pipe is fixedly connected to the inside of the tower body, the top of the delivery pipe is connected to the guide pipe, and nozzles are installed on both sides of the lower part of the guide pipe.

[0017] Furthermore, a heat exchange tube is installed in the middle of the tower body, a ladder is installed on the front side of the outside of the tower body, and air inlets are opened around the lower part of the tower body.

[0018] Furthermore, arc-shaped grooves are provided on both sides of the top of the exhaust duct, and the two arc-shaped blocks are inserted into the two arc-shaped grooves.

[0019] Furthermore, through holes are provided on both sides of the exterior of the exhaust duct, and the two pins are threadedly connected to the two through holes.

[0020] Furthermore, each of the two arc-shaped blocks has an insertion hole inside, and the two pins are threadedly connected to the two insertion holes.

[0021] Furthermore, a drainage hole is provided at the bottom of the tower body, and a packing layer is provided inside the tower body.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, during the demisting process, the exhaust fan draws the mist inside the tower into the exhaust duct, and then passes through the water absorption plate, the baffle demisting plate and the fiber demisting plate in sequence, and finally discharges dry gas. The three-stage demisting structure effectively reduces the emission of mist droplets and improves air quality.

[0024] 2. In this utility model, when installing the dustproof plate, first align the two arc-shaped blocks on both sides with the arc-shaped groove at the top of the exhaust duct and insert them, then pass the pin through the through hole and screw it into the insertion hole to fix it. This design facilitates quick installation, effectively prevents dust and foreign objects from entering the duct, and improves the stability of the equipment. Attached Figure Description

[0025] Figure 1 This is a perspective view of a cooling tower with demisting function proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the air inlet pipe structure of a cooling tower with demisting function proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the heat exchange tube structure of a cooling tower with demisting function proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the disassembled structure of the exhaust fan of a cooling tower with demisting function proposed in this utility model.

[0029] Legend:

[0030] 1. Tower body; 2. Ladder; 3. Air inlet; 4. Water collection tank; 5. Water pump; 6. Connecting pipe; 7. Conveying pipe; 8. Guide pipe; 9. Nozzle; 10. Heat exchanger tube; 11. Packing layer; 12. Drain hole; 13. Air inlet; 14. Exhaust duct; 15. Exhaust fan; 16. Baffle demister; 17. Fiber demister; 18. Water absorption plate; 19. Dustproof plate; 20. Arc-shaped block; 21. Insertion hole; 22. Pin; 23. Through hole; 24. Arc-shaped groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a cooling tower with a demisting function, comprising: a tower body 1; an exhaust duct 14 fixedly connected to the top of the tower body 1; an exhaust fan 15 installed inside the exhaust duct 14; a baffle demister 16 installed at the lower part of the exhaust duct 14; a fiber demister 17 installed at the upper part of the baffle demister 16 and a water absorption plate 18 installed at the lower part of the baffle demister 16; an air inlet 13 fixedly connected to the outer left side of the tower body 1; and a dustproof assembly for dustproofing the exhaust duct 14.

[0033] Specifically, during the demisting process, firstly, the exhaust fan 15 is activated, drawing the mist generated inside the tower 1 into the exhaust duct 14. After entering the exhaust duct 14, the mist first passes through the water absorption plate 18, which initially adsorbs and traps some of the water mist particles, effectively reducing the water content in the mist. Subsequently, the mist continues to flow through the baffle demister 16, where, thanks to the structural characteristic of repeatedly changing the airflow direction, the remaining fine water droplets are further separated under inertial action. Thus, most of the water droplets in the mist are removed. Finally, the mist passes through the fiber demister. Plate 17 can efficiently trap water mist particles with smaller diameters, deeply purify fine mist droplets, and ensure a more thorough demisting effect, thus completing the entire demisting process. The treated dry gas is finally discharged outside the tower by exhaust fan 15, completing the demisting operation. By installing water absorption plate 18, baffle demisting plate 16, and fiber demisting plate 17 inside the exhaust duct 14, the cooling tower has a demisting function, avoiding the direct discharge of water mist containing mist particles into the atmosphere during exhaust, reducing mist droplet drift, thereby reducing humidity and water droplet dispersion in the environment, and optimizing the surrounding air quality.

[0034] Reference Figure 2 and Figure 4 The dustproof component includes a dustproof plate 19, which is set on the top of the exhaust duct 14. Two arc-shaped blocks 20 are fixedly connected to the lower sides of the dustproof plate 19. The two arc-shaped blocks 20 are located on the inner sides of the exhaust duct 14. Two pins 22 are threadedly connected to the outer sides of the exhaust duct 14. Arc-shaped grooves 24 are opened on both sides of the top of the exhaust duct 14. The two arc-shaped blocks 20 are inserted into the two arc-shaped grooves 24, providing initial fixation for the dustproof plate 19. Through holes 23 are opened on both outer sides of the exhaust duct 14. The two pins 22 are threadedly connected to the two through holes 23, facilitating the installation of the pins 22. Insertion holes 21 are opened inside the two arc-shaped blocks 20, and the two pins 22 are threadedly connected to the two insertion holes 21, facilitating the fixation of the dustproof plate 19.

[0035] Specifically, when installing the dustproof plate 19, firstly, align and position the arc-shaped blocks 20 fixed on both sides of the lower part of the dustproof plate 19 with the arc-shaped grooves 24 opened on both sides of the top of the exhaust duct 14. Then, insert the two arc-shaped blocks 20 vertically into the corresponding arc-shaped grooves 24 to achieve a stable fit between the dustproof plate 19 and the top structure of the exhaust duct 14. Next, align the two pins 22 with the two pre-set through holes 23 and insert them into the through holes 23. Finally, screw the threaded part of the top of the two pins 22 into place. By tightening the pins 22 in the two insertion holes 21 located inside the two arc-shaped blocks 20, the dustproof plate 19 can be firmly locked to the top of the exhaust duct 14, ensuring that it will not loosen or shift during long-term operation. This installation structure realizes the quick positioning and stable fixing of the dustproof plate 19, which is convenient for maintenance and disassembly. By installing the dustproof plate 19 on the top of the cooling tower exhaust duct 14, external dust, impurities and foreign objects can be effectively prevented from entering the interior of the exhaust duct 14, thereby improving the stability of equipment operation.

[0036] Reference Figure 1 , Figure 2 and Figure 3 A water collection tank 4 is fixedly connected to the bottom of the tower body 1. A water pump 5 is fixedly connected to the right side of the outside of the water collection tank 4. A connecting pipe 6 is fixedly connected to the input end of the water pump 5. The connecting pipe 6 is fixedly connected to the inside of the water collection tank 4. A conveying pipe 7 is fixedly connected to the output end of the water pump 5. A guide pipe 8 is fixedly connected inside the tower body 1. The top of the conveying pipe 7 is connected to the guide pipe 8. Spray nozzles 9 are installed on both sides of the lower part of the guide pipe 8. A heat exchange pipe 10 is installed in the middle of the tower body 1. A ladder 2 is installed on the front side of the outside of the tower body 1. The ladder 2 facilitates the use of operators. Air inlets 3 are opened around the lower part of the tower body 1. Drainage holes 12 are opened at the bottom of the tower body 1. A packing layer 11 is set inside the tower body 1.

[0037] Specifically, when using the cooling tower, firstly, air is introduced through the air inlet 13, and hot water is injected into the heat exchange tube 10. Then, the water pump 5 is started to draw cold water from inside the water collection tank 4. Subsequently, the water is transported through the delivery pipe 7 to the inside of the guide pipe 8, and finally sprayed out through the nozzle 9. During the falling process, the sprayed water comes into contact with the heat exchange tube 10 and the packing layer 11, and at the same time, it fully exchanges heat with the rising airflow. Some of the water evaporates and carries away the heat, thereby achieving the cooling effect.

[0038] Working principle: During demisting, firstly, the exhaust fan 15 is activated, drawing the mist generated inside the tower body 1 into the exhaust duct 14. Next, the mist entering the exhaust duct 14 first passes through the water absorption plate 18, which initially adsorbs and traps some of the water mist particles, thereby reducing the water content in the mist. Subsequently, it passes through the deflector plate 16, whose structural characteristics involve repeatedly changing the airflow direction, causing the remaining fine water droplets to be further separated under inertia, thus completing the demisting operation. Finally, the fiber demister 17 can trap water mist particles with smaller diameters, achieving deep purification of fine mist droplets, thus completing the entire demisting process. The treated dry gas is finally discharged outside the tower by the exhaust fan 15. By installing the water absorption plate 18, the baffle demister 16 and the fiber demister 17 inside the exhaust duct 14, the cooling tower is given a demisting function, avoiding the direct discharge of water mist with mist particles into the atmosphere during exhaust, reducing mist droplet drift, and thus improving the air quality of the surrounding environment.

[0039] When installing the dustproof plate 19, firstly, align the arc-shaped blocks 20 fixed on both sides of the lower part of the dustproof plate 19 with the arc-shaped grooves 24 opened on both sides of the top of the exhaust duct 14. Then, insert the two arc-shaped blocks 20 into the two arc-shaped grooves 24 to make the dustproof plate 19 in close contact with the top of the exhaust duct 14. Next, align the two pins 22 with the two through holes 23. Then, tighten the two pins 22 into the two through holes 23 and tighten the tops of the two pins 22 into the two insertion holes 21. This completes the installation of the dustproof plate 19, making it easy to install the dustproof plate 19 on the top of the cooling tower exhaust duct 14, preventing external dust, impurities and foreign objects from entering the interior of the exhaust duct 14, thereby improving the stability of equipment operation.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooling tower with demisting function, characterized in that, include: Tower body(1); An exhaust duct (14) is fixedly connected to the top of the tower body (1); An exhaust fan (15) is installed inside the exhaust duct (14); A deflector plate (16) is installed at the lower part of the exhaust duct (14); A fiber demister plate (17) and a water-absorbing plate (18) are provided, wherein the fiber demister plate (17) is installed on the upper part of the baffle demister plate (16) and the water-absorbing plate (18) is installed on the lower part of the baffle demister plate (16); An air inlet (13) is fixedly connected to the outer left side of the tower body (1); And a dustproof component, which is used to perform dustproof operation on the exhaust duct (14).

2. A cooling tower with demisting function according to claim 1, characterized in that: The dustproof assembly includes a dustproof plate (19), which is disposed on the top of the exhaust duct (14). Arc-shaped blocks (20) are fixedly connected to both sides of the lower part of the dustproof plate (19). The two arc-shaped blocks (20) are disposed on both sides inside the exhaust duct (14). Pins (22) are threadedly connected to both sides of the outer side of the exhaust duct (14).

3. A cooling tower with demisting function according to claim 1, characterized in that: A water collection tank (4) is fixedly connected to the bottom of the tower body (1). A water pump (5) is fixedly connected to the right side of the outside of the water collection tank (4). A connecting pipe (6) is fixedly connected to the input end of the water pump (5). The connecting pipe (6) is fixedly connected to the inside of the water collection tank (4). A conveying pipe (7) is fixedly connected to the output end of the water pump (5). A guide pipe (8) is fixedly connected inside the tower body (1). The top of the conveying pipe (7) is connected to the guide pipe (8). Spray nozzles (9) are installed on both sides of the lower part of the guide pipe (8).

4. A cooling tower with demisting function according to claim 1, characterized in that: A heat exchange tube (10) is installed in the middle of the tower body (1), a ladder (2) is installed on the front side of the outside of the tower body (1), and air inlets (3) are opened around the lower part of the tower body (1).

5. A cooling tower with demisting function according to claim 2, characterized in that: The exhaust duct (14) has arc-shaped grooves (24) on both sides of its top, and the two arc-shaped blocks (20) are inserted into the two arc-shaped grooves (24).

6. A cooling tower with demisting function according to claim 2, characterized in that: The exhaust duct (14) has through holes (23) on both sides of its exterior, and the two pins (22) are threadedly connected to the two through holes (23).

7. A cooling tower with demisting function according to claim 2, characterized in that: Both of the arc-shaped blocks (20) have insertion holes (21) inside, and the two pins (22) are threadedly connected to the two insertion holes (21).

8. A cooling tower with demisting function according to claim 1, characterized in that: The tower body (1) has a drainage hole (12) at the bottom and a packing layer (11) inside the tower body (1).