A cooling device for a cooling tower

Abstract

The utility model discloses a heat dissipation device of cooling tower relates to cooling tower heat dissipation technical field, including cooling tower main part and echelon spraying mechanism, the inner surface fixed connection of cooling tower main part has echelon spraying mechanism, and echelon spraying mechanism includes fixed connection in cooling tower main part one side position's spray pump, the top fixed connection of spray pump has the conveying pipe, and one end fixed connection of conveying pipe has spiral water distribution pipe, the bottom fixed connection of spiral water distribution pipe has umbrella -shaped water distribution cap, and the bottom of umbrella -shaped water distribution cap is provided with echelon support grating, the top fixed connection of echelon support grating has triangular flow guide edge, and spray pump adopts cast iron material, and impeller is handled through dynamic balance, can stable output high pressure water flow, compares with current ordinary heat dissipation device, provides stable water curtain contact condition, and improves heat exchange efficiency, prevents scale self -cleaning mechanism to eliminate heat dissipation hindrance, guarantees heat exchange high efficiency, and both cooperation provides support for medium continuous cooling.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower heat dissipation technology, specifically a heat dissipation device for a cooling tower. Background Technology

[0002] A cooling tower is a device that utilizes the principle of heat exchange between water and air to dissipate waste heat generated in industrial production or refrigeration systems through evaporative cooling and contact cooling. It introduces high-temperature media (such as hot water or industrial waste liquid) into the tower, where they are brought into full contact with air, reducing their temperature before being recycled. Cooling towers are widely used in power, chemical, and air conditioning industries. The heat dissipation device inside the cooling tower is the core component for achieving cooling, directly transferring and dissipating heat from the medium. However, existing heat dissipation devices have certain shortcomings.

[0003] For example, a device for reducing heat loss in a cooling tower, as described in application number CN202022850822.2, includes an air guide duct installed on the cooling tower's air duct and a hot air baffle installed on the outer wall of the air guide duct. The elevation of the hot air baffle is 20-30 cm lower than the top surface of the air guide duct, and the size of the hot air baffle is adapted to the top surface size of the cooling tower. This device addresses this problem by raising the cooling tower body to 2m above the foundation frame to allow for greater contact with natural wind. The air guide duct and baffle above the cooling tower body directly guide the hot air emitted from the cooling tower into the atmosphere, preventing hot air from flowing back to the air inlet, thus improving ventilation and heat dissipation. However, this heat dissipation device may experience heat exchange dead zones due to localized water concentration, and problems such as dirt accumulation on the packing and cooling coils affecting heat dissipation. Furthermore, it is prone to increased thermal resistance and blockage of water flow channels, affecting heat dissipation efficiency.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings and proposed a heat dissipation device for cooling towers. Utility Model Content

[0005] The purpose of this invention is to provide a heat dissipation device for a cooling tower to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation device for a cooling tower, comprising a cooling tower body and a stepped spray mechanism. The stepped spray mechanism is fixedly connected to the inner surface of the cooling tower body, and the stepped spray mechanism includes a spray pump fixedly connected to one side of the cooling tower body. A delivery pipe is fixedly connected to the top of the spray pump, and a spiral water distribution pipe is fixedly connected to one end of the delivery pipe. An umbrella-shaped water distribution cap is fixedly connected to the bottom of the spiral water distribution pipe, and a stepped support grid is provided at the bottom of the umbrella-shaped water distribution cap. A triangular guide rib is fixedly connected to the top of the stepped support grid.

[0007] Preferably, the bottom of the stepped support grid is fixedly connected with packing material, and the bottom of the packing material is provided with an anti-scaling self-cleaning mechanism.

[0008] Preferably, the anti-scaling self-cleaning mechanism includes a threaded drive rod located inside the cooling tower body, and a guide limiting rod is provided on one side of the threaded drive rod. A nut seat is threadedly connected to the outer surface of the threaded drive rod, and a bottom cleaning brush is fixedly connected to the bottom of the nut seat, and a scale scraping brush is fixedly connected to the top of the nut seat.

[0009] Preferably, a dehydration layer is fixedly connected to the top of the cooling tower body, and a cooling coil is installed inside the cooling tower body.

[0010] Preferably, one end of the cooling coil is fixedly connected to a medium inlet, and the other end of the cooling coil is fixedly connected to a medium outlet.

[0011] Preferably, a right-side air inlet grille is fixedly connected to one side of the cooling tower body, and a left-side air inlet grille is fixedly connected to the other side of the cooling tower body.

[0012] Preferably, a water collection tank is fixedly connected to the bottom of the cooling tower body, and an exhaust fan is fixedly connected to the top of the dehydration layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the setting of a stepped spray mechanism, forms a coordinated operation of "high-pressure delivery - precise water distribution - stepped flow guidance," providing continuous and stable water curtain contact conditions for medium heat dissipation. The spray pump, with its high-strength cast iron impeller, can stably output high-pressure water flow after dynamic balancing, pumping the high-pressure circulating water in the collection tank into the delivery pipe. Its smooth inner wall design, combined with a reinforcing rib structure, reduces water flow resistance and improves pressure resistance, ensuring that the water flow is delivered to the spiral water distribution pipe without loss. The spiral water distribution pipe is made of corrosion-resistant stainless steel, which can disperse the water flow radially, and works in conjunction with the inner wall of the umbrella-shaped water distribution cap. The spiral guide channel increases the contact area with air and medium. When the umbrella-shaped water curtain falls to the stepped support grid, the fiberglass grid, with the help of the 45° inclined design of the triangular guide ridges, guides the water flow to the packing in stages, forming a multi-layer stepped water film. This avoids heat exchange dead zones caused by local water concentration. This stepped water distribution method prolongs the contact time between the water flow and the packing. The impact of the high-pressure water flow can wash away impurities attached to the surface of the packing. Combined with the anti-scaling self-cleaning mechanism, it improves the heat exchange efficiency of the packing, thereby improving the heat exchange efficiency of the overall heat dissipation system and providing key support for the continuous cooling of the medium inside the cooling tower.

[0015] 2. This utility model, through the setting of the anti-scaling self-cleaning mechanism, forms an operating logic of "precise drive - efficient descaling - synergistic protection", eliminating heat dissipation obstacles and ensuring continuous and efficient heat exchange. The threaded drive rod provides stable power for the cleaning components, and the guide limit rod is made of tempered steel to ensure that the nut seat slides smoothly in a straight line. The nylon bristles of the bottom cleaning brush have both toughness and wear resistance, maintaining appropriate contact pressure with the outer surface of the cooling coil, effectively removing the scale layer and preventing the increase in thermal resistance caused by dirt adhesion. The scale scraper is made of high-hardness silicon carbide fiber, which is in line contact with the bottom of the packing. Through reciprocating motion, it peels off the accumulated biological slime and impurities, preventing them from blocking the water flow channel and ensuring that the water curtain delivered by the stepped spray mechanism can evenly cover the surface of the packing. This dynamic cleaning mode is linked with the heat dissipation system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the stepped spray mechanism 2 of this utility model;

[0018] Figure 3 This is a schematic diagram of the anti-scaling self-cleaning mechanism 4 of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall front view structure of this utility model.

[0020] In the diagram: 1. Cooling tower body; 2. Stepped spray mechanism; 201. Spray pump; 202. Delivery pipe; 203. Spiral water distribution pipe; 204. Umbrella-shaped water distribution cap; 205. Stepped support grid; 206. Triangular guide rib; 3. Packing; 4. Anti-scaling self-cleaning mechanism; 401. Threaded drive rod; 402. Guide limiting rod; 403. Nut seat; 404. Bottom cleaning brush; 405. Scalding brush; 5. Dehydration layer; 6. Cooling coil; 7. Medium inlet; 8. Medium outlet; 9. Right side air inlet grid; 10. Left side air inlet grid; 11. Water collection tank; 12. Exhaust fan. Detailed Implementation

[0021] 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.

[0022] like Figures 1-2As shown, a cooling tower heat dissipation device includes a cooling tower body 1 and a stepped spray mechanism 2. The stepped spray mechanism 2 is fixedly connected to the inner surface of the cooling tower body 1. The stepped spray mechanism 2 includes a spray pump 201 fixedly connected to one side of the cooling tower body 1. A delivery pipe 202 is fixedly connected to the top of the spray pump 201, and a spiral water distribution pipe 203 is fixedly connected to one end of the delivery pipe 202. An umbrella-shaped water distribution cap 204 is fixedly connected to the bottom of the spiral water distribution pipe 203, and a stepped support grid is provided at the bottom of the umbrella-shaped water distribution cap 204. 205, the top of the stepped support grid 205 is fixedly connected with a triangular guide rib 206, the spray pump 201 is made of cast iron, the impeller is dynamically balanced, and it can stably output high-pressure water flow. The inner wall of the delivery pipe 202 is smooth and has reinforcing ribs to enhance pressure resistance. The spiral water distribution pipe 203 is made of stainless steel, and the pipe body is densely covered with inclined spray holes. The inner wall of the umbrella-shaped water distribution cap 204 is provided with a guide groove to disperse the water flow into an umbrella-shaped water curtain. The stepped support grid 205 is made of fiberglass, and the triangular guide ribs 206 are inclined to guide the water flow evenly to the packing 3 below.

[0023] like Figure 3 As shown, the bottom of the stepped support grille 205 is fixedly connected to the packing 3, and the bottom of the packing 3 is provided with an anti-scaling self-cleaning mechanism 4. The anti-scaling self-cleaning mechanism 4 includes a threaded drive rod 401 located inside the cooling tower body 1, and a guide limiting rod 402 is provided on one side of the threaded drive rod 401. A nut seat 403 is threadedly connected to the outer surface of the threaded drive rod 401, and a bottom cleaning brush 404 is fixedly connected to the bottom of the nut seat 403. A scraping brush 405 is fixedly connected to the top of the nut seat 403. The threaded drive rod 401 adopts... The surface is plated with hard chrome for rust prevention and is linked with the servo motor to achieve forward and reverse rotation. The guide limit rod 402 is made of tempered steel with a polytetrafluoroethylene coating on the outer wall to reduce drag. The nut seat 403 has a built-in bronze nut. The threaded drive rod 401 has a precision thread engagement. The bottom cleaning brush 404 uses nylon bristles to contact the outer surface of the cooling coil 6 and remove dirt from the outer surface of the cooling coil 6 to prevent dirt from affecting the heat dissipation of the medium. The scraper brush 405 is made of silicon carbide fiber to ensure close contact with the outer surface of the packing 3 and prevent dirt from accumulating at the bottom of the packing 3 and affecting the liquid flow.

[0024] Furthermore, a dehydration layer 5 is fixedly connected to the top of the cooling tower body 1, and a cooling coil 6 is installed inside the cooling tower body 1. One end of the cooling coil 6 is fixedly connected to a medium inlet 7, and the other end of the cooling coil 6 is fixedly connected to a medium outlet 8. The dehydration layer 5 is a honeycomb corrugated plate assembly made of PVC material, which forms a labyrinthine flow channel to improve the efficiency of drift water interception. The cooling coil 6 is made of seamless copper pipe with a nano-ceramic anti-scaling film on the inner wall. Both the medium inlet 7 and the medium outlet 8 are equipped with pressure-resistant flanges with nitrile rubber sealing rings to enhance the sealing performance.

[0025] Furthermore, a right-side air inlet grille 9 is fixedly connected to one side of the cooling tower body 1, and a left-side air inlet grille 10 is fixedly connected to the other side of the cooling tower body 1. A water collection tank 11 is fixedly connected to the bottom of the cooling tower body 1, and an exhaust fan 12 is fixedly connected to the top of the dehydration layer 5. Both the right-side air inlet grille 9 and the left-side air inlet grille 10 are made of galvanized steel sheet and are stamped. They have built-in removable nylon filters to intercept debris. The inner wall of the water collection tank 11 is coated with food-grade epoxy resin for corrosion protection. A conical scale collection tank and a drain valve are provided at the bottom. The exhaust fan 12 is an axial flow type, and the impeller has been dynamically and statically balanced. The air outlet is equipped with rainproof louvers and is sealed to the dehydration layer 5 through a flange to ensure directional airflow.

[0026] Working principle: When using the heat dissipation device of this cooling tower, firstly, the main body 1 of the cooling tower starts, and the right air inlet grille 9 and the left air inlet grille 10 introduce outside air. The stepped spray mechanism 2 operates, and the spray pump 201 sends the water in the water collection tank 11 to the spiral water distribution pipe 203 through the delivery pipe 202. The umbrella-shaped water distribution cap 204 evenly sprays the water onto the stepped support grille 205. The triangular guide ribs 206 guide the water flow to the packing 3, where it undergoes preliminary heat exchange with the internal medium. Then, the cooling coil 6 introduces the medium through the medium inlet 7 to absorb the heat. After the medium heats up, it is discharged from the medium outlet 8. The anti-scaling self-cleaning mechanism 4 is activated. The threaded drive rod 401 drives the nut seat 403 to move along the guide limit rod 402. The bottom cleaning brush 404 cleans the cooling coil 6, and the scraper brush 405 cleans the packing 3. The exhaust fan 12 draws the hot and humid air to the dehydration layer 5, intercepts the drift water, and then discharges it. Finally, the equipment stops running, the water collection tank 11 recovers the circulating water, and the condition of each component is checked to ensure that there is no blockage or damage. One heat dissipation cycle is completed. This is the working principle of the heat dissipation device of the cooling tower.

Claims

1. A heat dissipating device of a cooling tower comprising a cooling tower main body (1) and a stepped spray mechanism (2), characterized in that, A stepped spraying mechanism (2) is fixedly connected to the inner surface of the cooling tower body (1), and the stepped spraying mechanism (2) includes a spray pump (201) fixedly connected to one side of the cooling tower body (1). A conveying pipe (202) is fixedly connected to the top of the spray pump (201), and a spiral water distribution pipe (203) is fixedly connected to one end of the conveying pipe (202). An umbrella-shaped water distribution cap (204) is fixedly connected to the bottom of the spiral water distribution pipe (203), and a stepped support grid (205) is provided at the bottom of the umbrella-shaped water distribution cap (204). A triangular guide rib (206) is fixedly connected to the top of the stepped support grid (205).

2. A heat dissipating device for cooling tower according to claim 1, wherein The bottom of the stepped support grid (205) is fixedly connected with filler (3), and the bottom of the filler (3) is provided with an anti-scaling self-cleaning mechanism (4).

3. The heat dissipation device for a cooling tower according to claim 2, characterized in that, The anti-scaling self-cleaning mechanism (4) includes a threaded drive rod (401) located inside the cooling tower body (1), and a guide limiting rod (402) is provided on one side of the threaded drive rod (401). A nut seat (403) is threadedly connected to the outer surface of the threaded drive rod (401), and a bottom cleaning brush (404) is fixedly connected to the bottom of the nut seat (403). A scraping brush (405) is fixedly connected to the top of the nut seat (403).

4. The heat dissipation device for a cooling tower according to claim 1, characterized in that, The top of the cooling tower body (1) is fixedly connected to a dehydration layer (5), and a cooling coil (6) is installed inside the cooling tower body (1).

5. The heat dissipation device for a cooling tower according to claim 4, characterized in that, One end of the cooling coil (6) is fixedly connected to a medium inlet (7), and the other end of the cooling coil (6) is fixedly connected to a medium outlet (8).

6. The heat dissipation device for a cooling tower according to claim 1, characterized in that, The cooling tower body (1) is fixedly connected to a right air intake grille (9) on one side, and to a left air intake grille (10) on the other side.

7. The heat dissipation device for a cooling tower according to claim 1, characterized in that, The bottom of the cooling tower body (1) is fixedly connected to a water collection tank (11), and the top of the dehydration layer (5) is fixedly connected to an exhaust fan (12).

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