A spray-type cooling tower with an anti-freezing function

Abstract

The present invention discloses a spray cooling tower with an anti-freezing function, which relates to the technical field of cooling towers and includes a tower body equipped with a spray mechanism. A plurality of air inlets are distributed on the side wall of the tower body. It further includes an air inlet adjusting member, which is installed in the tower body and is adapted to the air inlets. A packing tray is installed inside the tower body below the spray mechanism, and a liquid discharge channel for the lifting of each air inlet adjusting member is vertically opened on the outside thereof. An elastic opening and closing mechanism is installed in the liquid discharge channel. An air inlet preheating member is installed below the elastic opening and closing mechanism on the inner side of the air inlet adjusting member. When the air inlet adjusting member descends to reduce the air volume of the air inlets, part of the hot waste water is separately discharged to the air inlet preheating member through the liquid discharge channel. In the present invention, through the cooperation of the liquid discharge channel and the air inlet adjusting member, the directional discharge and reuse of the hot waste water are realized. When the air inlet adjusting member descends to reduce the air volume of the air inlets, the elastic opening and closing mechanism in the liquid discharge channel will also be pushed open.

Description

Technical Field

[0001] The invention relates to the technical field of cooling towers, in particular to a spray cooling tower with an antifreeze function. Background Art

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to lower the water temperature. It uses the heat exchange between water and air flow to generate steam. The steam evaporates and takes away the heat to achieve evaporative heat dissipation, convection heat transfer, and radiation heat transfer. It is an evaporative heat dissipation device that dissipates the waste heat generated in industry to lower the water temperature in order to ensure that the system operates stably at normal temperatures.

[0003] The patent publication number of the existing patent application is: CN218937084U, and the publication date is April 28, 2023. The name of the patent is "A cooling tower with antifreeze function". The patent includes a cooling tower body, a fan, a spray pipe and a filler rack are installed inside the cooling tower body, a water collection tank is opened at the bottom of the cooling tower body, and a circulating water pipe and a water supply pipe are fixed on the outside of the cooling tower body. The cooling tower with antifreeze function is provided with an electric heating rod, which helps to cooperate with the insulation sleeve to ensure the temperature balance inside the cooling tower body and avoid the freezing of the liquid in the water collection tank. By setting an electric heating tape, the electric heating tape emits a certain amount of heat through the heating medium, and supplements the loss of the heated pipe through direct or indirect heat exchange to ensure the normal circulation of water inside the cooling tower. By setting a waterproof and thermal insulation canvas, the air intake of the blinds is reduced to avoid being invaded by external cold air, maintain the air inlet temperature, and ensure the normal operation of the cooling tower.

[0004] The above application has shortcomings. The spray cooling tower mainly achieves the purpose of cooling by direct contact between spray water and hot air flow for heat exchange. However, in cold seasons or extreme climatic conditions, cooling towers often face the risk of icing, which will not only affect the cooling efficiency, but may also cause damage to the equipment. Generally, the internal temperature of the cooling tower is ensured by reducing the air intake, but the effect is not good. Although some have added electric heating rods and other electric auxiliary heating equipment to reduce the icing problem, this has significantly increased the power consumption generated during the cooling process. Summary of the invention

[0005] The object of the present invention is to provide a spray cooling tower with an antifreeze function to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A spray cooling tower with antifreeze function includes a tower body equipped with a spray mechanism. A number of air inlets are distributed on the side wall of the tower body. It also includes an air inlet adjusting member, which is installed in the tower body and is adapted to the air inlets. A packing tray is installed inside the tower body below the spray mechanism. A liquid discharge channel for the lifting of each air inlet adjusting member is vertically opened on the outside thereof. An elastic opening and closing mechanism is installed in the liquid discharge channel. The air inlet adjusting member is in abutting cooperation with the elastic opening and closing mechanism. An air inlet preheating member is installed below the elastic opening and closing mechanism on the inner side of the air inlet adjusting member. When the air inlet adjusting member descends to reduce the air volume of the air inlets, part of the hot waste water is separately discharged to the air inlet preheating member through the liquid discharge channel, and the air flowing into the air inlets is preheated by the hot waste water.

[0008] Preferably, the air inlet adjusting member includes an adjusting ring rotatably sleeved outside the tower body and a plurality of hollow vertical rods vertically sliding on the inner wall of the tower body. A sliding rod is fixedly connected to one side of the hollow vertical rod. A through groove matching the sliding rod is vertically opened on the tower body. An inclined groove for inserting the end of the sliding rod is opened on the inner wall of the adjusting ring. A wind baffle is fixedly connected to the bottom of the hollow vertical rod.

[0009] Preferably, the elastic opening and closing mechanism includes a valve plate elastically hinged to the inner wall of the liquid discharge channel. A number of liquid discharge grooves are opened on the valve plate.

[0010] Preferably, a pressing plate abuting against the valve plate is fixedly connected to the other side of the hollow vertical rod. The pressing plate is located above the liquid discharge groove and closes it. The width of the pressing plate is greater than the length of the liquid discharge groove.

[0011] Preferably, a driving motor is installed outside the tower body. A driving gear is fixedly connected to the output shaft of the driving motor. A driven gear ring meshing with the driving gear is sleeved outside the adjusting ring.

[0012] Preferably, the air inlet preheating member includes a packing plate fixed to one side of the wind baffle. The other side of the wind baffle is in contact with the inner wall of the tower body. A plurality of heat conduction columns are inserted into the packing plate, and the plurality of heat conduction columns are evenly distributed at the air inlets.

[0013] Preferably, the spray mechanism includes a spray pipe surrounding the inside of the tower body. Spray heads are evenly distributed on the spray pipe. A wind baffle ring is installed inside the tower body. The wind baffle ring is located below the spray pipe. An opening located below each spray head is also opened on the wind baffle ring.

[0014] Preferably, an annular air cavity is installed at the bottom of the wind baffle ring. The top of the annular air cavity is communicated with the wind baffle ring, and the communication part is staggered with the opening. An air inlet hose is fixedly connected between the bottom of the annular air cavity and each hollow vertical rod. A ventilation hole is opened on one side of the hollow vertical rod. An air inlet hole corresponding to the ventilation hole is opened on the outer wall of the tower body.

[0015] Preferably, a water isolation ring is fixedly connected to the bottom of the packing tray. A servo motor is installed in the water isolation ring. The output shaft of the servo motor is fixedly connected to a shaft rod. The shaft rod penetrates through the packing tray and is sleeved with an upper scraper and a lower scraper. The packing tray is located between the upper scraper and the lower scraper.

[0016] Preferably, the lower scraper is vertically slidably connected to the shaft rod. A supporting ring for supporting the lower scraper is movably installed in the water isolation ring. A traction member is installed on the top of the supporting ring. The traction member is in abutting cooperation with the air inlet preheating member.

[0017] In the above technical solution, by arranging the air inlet adjusting member to cooperate with the elastic opening and closing mechanism in the liquid discharge channel, the air inlet adjusting member can flexibly adjust the size of the air inlet to control the air volume entering the tower body to meet the requirements under different working conditions. At the same time, the liquid discharge channel cooperates with the air inlet adjusting member to realize the directional discharge and reuse of hot wastewater. When the air inlet adjusting member descends to reduce the air volume of the air inlet, the elastic opening and closing mechanism in the liquid discharge channel will also be pushed open, guiding part of the hot wastewater to flow to the air inlet preheating member without passing through the packing tray, and using the waste heat of the hot wastewater to preheat the air flow entering the tower body, so as to improve the initial temperature of the air flow without increasing additional energy consumption and effectively prevent the cooling tower from freezing in a low-temperature environment.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the present disclosure.

[0019] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a complete disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of a spray cooling tower with an antifreeze function according to the present invention;

[0022] Figure 2 It is a cross-sectional view of a spray cooling tower with an antifreeze function according to the present invention;

[0023] Figure 3 It is an enlarged view of part A of a spray cooling tower with an antifreeze function according to the present invention;

[0024] Figure 4It is a structural schematic diagram of a tower body in a spray cooling tower with antifreeze function according to the present invention;

[0025] Figure 5 It is a schematic diagram of the internal structure of a spray cooling tower with antifreeze function according to the present invention;

[0026] Figure 6 It is a structural schematic diagram of an adjusting ring in a spray cooling tower with an antifreeze function according to the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of a packing tray in a spray cooling tower with an antifreeze function according to the present invention;

[0028] Figure 8 A bottom view of a packing tray in a spray cooling tower with an antifreeze function according to the present invention;

[0029] Figure 9 The present invention is a schematic diagram of the connection between an air inlet regulating component and an air inlet preheating component in a spray cooling tower with an antifreeze function.

[0030] Description of reference numerals:

[0031] 1. Tower body; 101. Air inlet; 102. Through slot; 103. Air inlet hole; 104. Air duct; 2. Spray mechanism; 201. Spray pipe; 202. Spray head; 3. Air inlet adjustment member; 301. Adjustment ring; 302. Hollow vertical pole; 303. Sliding rod; 304. Inclined slot; 305. Wind deflector; 306. Pressing plate; 307. Driven gear ring; 308. Ventilation hole; 4. Driving motor; 401. Driving gear; 5. Filling plate; 50 1. Drain channel; 502. Water-isolating ring; 503. Support ring; 6. Elastic opening and closing mechanism; 601. Valve plate; 602. Drain trough; 7. Air inlet preheating member; 701. Filling plate; 702. Heat-conducting column; 8. Wind shield ring; 801. Opening; 802. Annular air cavity; 803. Air inlet hose; 9. Servo motor; 901. Shaft; 902. Upper scraper; 903. Lower scraper; 10. Traction member; 1001. Pull rope; 1002. Stop block. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0033] See also Figures 1-9A spray cooling tower with an antifreeze function provided by an embodiment of the present invention comprises a tower body 1 equipped with a spray mechanism 2, a plurality of air inlets 101 are distributed on the side wall of the tower body 1, and an air inlet regulating member 3 is installed in the tower body 1 and matched with the air inlet 101. A filling plate 5 is installed inside the tower body 1 below the spray mechanism 2, and a drainage channel 501 for lifting and lowering each air inlet regulating member 3 is vertically opened on the outer side thereof, and an elastic opening and closing mechanism 6 is installed in the drainage channel 501. The air inlet regulating member 3 is abutted and matched with the elastic opening and closing mechanism 6, and an air inlet preheating member 7 is installed on the inner side of the air inlet regulating member 3 below the elastic opening and closing mechanism 6. When the air inlet regulating member 3 descends to reduce the air volume of the air inlet 101, part of the hot waste water is discharged to the air inlet preheating member 7 separately through the drainage channel 501, and the hot waste water is used to preheat the airflow entering the air inlet 101.

[0034] Specifically, high-temperature cooling water enters the spray mechanism 2 in the tower body 1 through a pipeline and is evenly distributed to the packing plate 5 through the spray mechanism 2. A wind tube 104 is installed at the air outlet position on the top of the tower body 1. External air is introduced into the tower body 1 from the air inlet 101 and flows upward, penetrating the packing layer and making direct contact with water droplets or water films, thereby performing heat exchange. In this process, the heat in the air is absorbed into the water, and at the same time, part of the water droplets evaporate due to the absorption of heat and are converted into water vapor. The latent heat of evaporation of water is utilized in the evaporation process. Through evaporation, a large amount of heat is quickly taken away from the water, thereby achieving effective cooling of the circulating water. The cooled cooling water is collected in the water collection pool at the bottom of the tower, and will be pumped out by a water pump for subsequent recycling. At low temperatures or when the air intake needs to be reduced Under the working condition, the air inlet regulating member 3 can be automatically or manually lowered to reduce the air volume of the air inlet 101. At the same time, when the air inlet regulating member 3 is lowered, it will squeeze the elastic opening and closing mechanism 6 to open the elastic opening and closing mechanism 6 that originally blocked the drainage channel 501, so that part of the hot waste water flows along the drainage channel 501 under the action of gravity, and flows to the air inlet preheating member 7 through the guidance of the elastic opening and closing mechanism 6, which quickly absorbs the heat of the hot waste water and transfers it to the air flow entering through the air inlet 101, preheating the cold air that is about to enter the tower body 1. This process not only utilizes the waste heat resources of the hot waste water and reduces the energy consumption in the treatment process, but also further increases the temperature of the air entering the tower body 1, reduces the risk of freezing, and ensures the stable operation of the cooling tower in a low temperature environment.

[0035] Compared with the prior art, the embodiment of the present invention cooperates with the elastic opening and closing mechanism 6 in the drainage channel 501 by setting an air inlet regulating member 3. The air inlet regulating member 3 can flexibly adjust the size of the air inlet 101 to control the air volume entering the tower body 1 and meet the needs under different working conditions. At the same time, the drainage channel 501 cooperates with the air inlet regulating member 3 to achieve directional discharge and reuse of hot waste water. When the air inlet regulating member 3 descends to reduce the air volume of the air inlet 101, the elastic opening and closing mechanism 6 in the drainage channel 501 will also be pushed open, guiding part of the hot waste water to flow to the air inlet preheating member 7 without passing through the filler plate 5, and using the waste heat of the hot waste water to preheat the air flow entering the tower body 1, thereby increasing the initial temperature of the air flow without increasing additional energy consumption, and effectively preventing the cooling tower from freezing in a low temperature environment.

[0036] In a further embodiment of the present invention, the air inlet adjustment member 3 includes an adjustment ring 301 rotatably sleeved on the outside of the tower body 1 and a plurality of hollow vertical rods 302 that slide vertically on the inner wall of the tower body 1, one side of the hollow vertical rod 302 is fixedly connected with a sliding rod 303, a through groove 102 matching the sliding rod 303 is vertically opened on the tower body 1, an inclined groove 304 for the end of the sliding rod 303 to be inserted is opened on the inner wall of the adjustment ring 301, and a windshield plate 305 is fixedly connected to the bottom of the hollow vertical rod 302. Specifically, the adjustment ring 301 is an annular structure, which is rotatably sleeved on the outside of the tower body 1 and can be rotated manually or electrically. The sliding rod 303 on one side of the hollow vertical rod 302 passes through the through groove 102 vertically opened on the tower body 1, and the through groove 102 provides a guiding and limiting function for the sliding rod 303 to ensure that the hollow vertical rod 302 can only move in the vertical direction. When the adjustment ring 301 rotates, the inclined groove 304 interacts with the end of the slide bar 303, and can guide the slide bar 303 to move along a specific trajectory during the rotation of the adjustment ring 301. As the adjustment ring 301 rotates, different positions of the inclined groove 304 contact the slide bar 303, thereby changing the height of the hollow vertical rod 302, allowing the hollow vertical rod 302 to rise and fall with the wind shield 305. When the air intake needs to be reduced, the adjustment ring 301 rotates to make the hollow vertical rod 302 descend, and the wind shield 305 descends accordingly and blocks part of the air inlet 101, thereby reducing the air intake into the tower body 1. When the air intake needs to be increased, the adjustment ring 301 rotates in the other direction to make the hollow vertical rod 302 rise, and the wind shield 305 rises accordingly and gradually opens the air inlet 101, thereby increasing the air intake into the tower body 1. The rotation operation of the adjustment ring 301 is relatively simple and has a large operating range. The air volume can be adjusted at any time according to actual conditions.

[0037] In a further embodiment of the present invention, the elastic opening and closing mechanism 6 includes a valve plate 601 elastically hinged to the inner wall of the liquid discharge channel 501. A spring hinge is installed between the valve plate 601 and the liquid discharge channel 501. A plurality of liquid discharge grooves 602 are formed on the valve plate 601. Specifically, when the air inlet adjusting member 3 does not squeeze the valve plate 601, the valve plate 601 always blocks the liquid discharge channel 501 under the elastic force of the spring hinge, preventing hot wastewater from flowing downward along the liquid discharge channel 501 to the bottom of the tower body 1 when the temperature of the operating environment is relatively high, and ensuring the overall cooling effect under normal operating conditions. When the air inlet adjusting member 3 moves downward to reduce the size of the air inlet 101, the air inlet adjusting member 3 also squeezes the valve plate 601. After it is flipped to a certain angle, part of the hot wastewater sprayed onto the packing tray 5 will enter the liquid discharge channel 501 through the multiple liquid discharge grooves 602 on the valve plate 601, and then fall onto the air inlet preheating member 7, enabling the heat dissipated during the cooling process of the hot wastewater to be absorbed by the air flow entering the air inlet 101. Moreover, as the air inlet adjusting member 3 makes the air inlet 101 smaller and smaller, the opening and closing angle of the valve plate 601 becomes larger and larger, resulting in a greater flow rate of the hot wastewater flowing through the air inlet preheating member 7, providing more temperature change options for the air flow entering the air inlet 101, and enabling the cooling tower to adapt to operating environments at different temperatures.

[0038] In a further embodiment of the present invention, a pressing plate 306 fixedly connected to the other side of the hollow vertical rod 302 abuts against the valve plate 601. Multiple valve plates 601 can be provided and are vertically distributed. The number of pressing plates 306 is equal to the number of valve plates 601. The pressing plate 306 is located above the liquid discharge groove 602 and closes the liquid discharge groove 602. The width of the pressing plate 306 is greater than the length of the liquid discharge groove 602. Specifically, the main function of the pressing plate 306 is to seal the gap between the movable end of the valve plate 601 and the liquid discharge channel 501 by pressing against the valve plate 601 when needed, so as to block or restrict the flow of hot wastewater. The pressing plate 306 is also used to squeeze the valve plate 601. Since the liquid discharge groove 602 is completely covered when the pressing plate 306 covers the non-flipped valve plate 601 and the width of the pressing plate 306 is greater than the length of the liquid discharge groove 602, when the hollow vertical rod 302 descends a short distance, even if the valve plate 601 has been flipped by a certain angle, since the liquid discharge groove 602 is still under the pressing plate 306, the cooperation between the pressing plate 306 and the valve plate 601 can still play a blocking role, increasing the usage threshold of the air inlet preheating member 7 and avoiding the influence of misoperation on the cooling efficiency of hot wastewater during normal operation.

[0039] In a further embodiment of the present invention, a driving motor 4 is installed outside the tower body 1. A driving gear 401 is fixedly connected to the output shaft of the driving motor 4. A driven gear ring 307 meshing with the driving gear 401 is sleeved outside the adjusting ring 301. A temperature controller electrically connected to the driving motor 4 is installed on the tower body 1. Specifically, the driving motor 4 drives the driving gear 401 to rotate, so that the adjusting ring 301 rotates outside the tower body 1. The driving motor 4 can be controlled manually, or the driving motor 4 can be accurately controlled by the temperature controller. It is more labor-saving compared with manually rotating the adjusting ring 301, and the height control of the air inlet adjusting member 3 is more accurate, avoiding excessive air volume at the air inlet 101 when the outside temperature is relatively low due to too small a rotation angle of the adjusting ring 301.

[0040] In a further embodiment of the present invention, the air inlet preheating member 7 includes a packing plate 701 fixed to one side of the wind baffle 305. The other side of the wind baffle 305 is in contact with the inner wall of the tower body 1. A plurality of heat conducting columns 702 are inserted into the packing plate 701. The bottom ends of the heat conducting columns 702 penetrate through the packing plate 701, and the plurality of heat conducting columns 702 are uniformly distributed at the air inlet 101. Specifically, when high-temperature wastewater is sprayed on the packing tray 5, if the hollow vertical rod 302 descends and opens the valve plate 601, a part of the high-temperature wastewater will fall into the packing plate 701 through the liquid discharge channel 501. The packing plate 701 first absorbs and stores these heats. Subsequently, the cooled wastewater falls to the bottom of the tower body 1, and the heat on the packing plate 701 is quickly transferred to the air near the air inlet 101 through the efficient conduction of the heat conducting columns 702. When the external cold air enters the tower body 1 through the air inlet 101, it will exchange heat with the preheated heat conducting columns 702, thereby achieving the air preheating effect, improving the air flow distribution and temperature gradient inside the tower body 1 to a certain extent. When no hot wastewater passes through the packing plate 701, the heat conducting columns 702 are in a normal temperature state, and the temperature of the air passing through the air inlet 101 will not increase, ensuring the stable operation of the cooling tower under normal conditions.

[0041] In a further embodiment of the present invention, the spraying mechanism 2 includes a spraying pipeline 201 surrounding the tower body 1. The spraying pipeline 201 is evenly distributed with spraying nozzles 202. A wind shield ring 8 is installed in the tower body 1. The wind shield ring 8 is located below the spraying pipeline 201. An opening 801 located below each spraying nozzle 202 is also provided on the wind shield ring 8. Specifically, when the spraying mechanism 2 starts to work, the liquid is conveyed to each spraying nozzle 202 through the spraying pipeline 201 and sprayed into the tower body 1. The presence of the wind shield ring 8 makes the sprayed liquid not immediately dispersed by the airflow in the tower body 1 during the spraying process, but continues to flow downward or diffuse through the opening 801. At the same time, the hot airflow rising from below the packing tray 5 changes its flow direction under the guidance of the wind shield ring 8 and bypasses the spraying pipeline 201, preventing the airflow with increased temperature after heat exchange from continuously blowing towards the spraying pipeline 201, so that the spraying pipeline 201 does not absorb more additional heat. The cooling water passing through the spraying pipeline 201 does not increase in temperature compared with before during spraying, ensuring the cooling effect.

[0042] In a further embodiment of the present invention, an annular air chamber 802 is installed at the bottom of the wind shield ring 8. The top of the annular air chamber 802 is in communication with the wind shield ring 8, and this communication point is offset from the opening 801. A wind inlet hose 803 is fixedly connected between the bottom of the annular air chamber 802 and each hollow vertical rod 302. A ventilation hole 308 is provided on one side of the hollow vertical rod 302, and an air inlet hole 103 corresponding to the ventilation hole 308 is provided on the outer wall of the tower body 1. The air inlet hole 103 is located above the air inlet 101, and the ventilation hole 308 is movable between the air inlet hole 103 and the tower body 1. Specifically, the bottom of the annular air chamber 802 is fixedly connected to each hollow vertical rod 302 through the wind inlet hose 803. The flexible design of the wind inlet hose 803 allows the hollow vertical rod 302 to freely rise and fall during the adjustment process while maintaining the continuity and stability of the air flow. The wind shield 305 is fixedly connected to the bottom of the hollow vertical rod 302, and the ventilation hole 308 on its outer side allows external air to enter the hollow vertical rod 302. When the adjustment ring 301 rotates to lower the hollow vertical rod 302, the ventilation hole 308 originally at the air inlet hole 103 moves into the tower body 1 accordingly, causing the ventilation hole 308 and the air inlet hole 103 to be offset from each other. The tower body 1 blocks the ventilation hole 308, thereby preventing the colder external air flow from entering the hollow vertical rod 302 along the ventilation hole 308 and directly blowing on the spray pipe 201, which could further reduce the temperature of the pipe. When the external temperature is relatively high, the hollow vertical rod 302 is raised by reverse rotation of the adjustment ring 301 to open the air inlet 101, allowing some external air flow to directly enter the hollow vertical rod 302 through the air inlet hole 103 and the ventilation hole 308. The air flow entering the hollow vertical rod 302 then enters the annular air chamber 802 through the wind inlet hose 803. The annular air chamber 802 surrounds the key area inside the tower body 1 to form a semi-closed space for collecting and distributing air, allowing the incoming air flow to mix and be evenly distributed within the annular air chamber 802. Then, these air flows are blown onto the spray pipe 201 in a distributed manner through the communication point between the annular air chamber 802 and the wind shield ring 8. Air flow can accelerate the evaporation of moisture on the surface of the pipe. A large amount of heat is absorbed during the evaporation process, which helps to reduce the temperature of the pipe. At the same time, the air flow can also carry away a part of the heat on the surface of the pipe, further reducing the pipe temperature, making the hot waste water sprayed out lower in temperature compared to before entering. The communication point between the annular air chamber 802 and the wind shield ring 8 is offset from the opening 801 on the wind shield ring 8. This design can prevent the impact of two air flows with different temperatures, ensuring that the air flow rising from the packing tray 5 and the air flow discharged from the annular air chamber 802 do not affect each other initially and can flow along the predetermined path, thereby improving the heat exchange efficiency.

[0043] In a further embodiment of the present invention, a water isolation ring 502 is fixedly connected to the bottom of the packing tray 5. The side wall of the packing plate 701 abuts against the outer wall of the water isolation ring 502. A servo motor 9 is installed in the water isolation ring 502. The output shaft of the servo motor 9 is fixedly connected to a shaft rod 901. The shaft rod 901 passes through the packing tray 5, and a coaxially rotating upper scraper 902 and a lower scraper 903 are sleeved thereon. The packing tray 5 is located between the upper scraper 902 and the lower scraper 903. Specifically, the water isolation ring 502 can prevent most of the liquid dripping from the packing tray 5 from entering the peripheral packing plate 701, and can also prevent the hot waste water in the packing plate 701 from flowing out from its inner side to the outside, ensuring that the packing plate 701 can absorb sufficient heat when receiving the hot waste water in the drainage channel 501, improving the antifreeze effect. Also, when the scraper 903 cleans the water film on the bottom surface of the packing tray 5 driven by the servo motor 9, it can prevent the splashing water from splashing onto the packing plate 701, and the accumulated water can be cleaned quickly and comprehensively. At the same time, the upper scraper 902 can rotate synchronously with the lower scraper 903 to clean the accumulated water on the top surface of the packing tray 5. If there are sundries remaining on the top surface of the packing tray 5, the air inlet adjusting member 3 can be lowered to open the drainage channel 501, allowing the sundries to directly fall quickly along the drainage channel 501 to the bottom of the tower body 1, facilitating cleaning.

[0044] In a further embodiment of the present invention, the lower scraping frame 903 is vertically slidably connected to the shaft rod 901. A slider is fixedly connected inside the lower scraping frame 903. A chute matching the slider is vertically opened on one side of the shaft rod 901. A supporting ring 503 for supporting the lower scraping frame 903 is movably installed inside the water blocking ring 502. A traction member 10 is installed on the top of the supporting ring 503. The traction member 10 is in abutting cooperation with the air inlet preheating member 7. The traction member 10 includes a plurality of pulling ropes 1001 penetrating through the water blocking ring 502. One end of the pulling rope 1001 is connected to the supporting ring 503, and the other end is installed with a blocking block 1002. The blocking block 1002 is slidably connected to the outer wall of the water blocking ring 502. A protrusion for pressing the blocking block 1002 is provided inside the packing plate 701. Specifically, the lower scraping frame 903 is not fixedly sleeved on the shaft rod 901 like the upper scraping frame 902, but is vertically slidably connected, so that the lower scraping frame 903 can freely slide along the vertical direction on the shaft rod 901, but is restricted by the support bracket and the packing tray 5 at the same time to prevent it from detaching from the shaft rod 901. The supporting ring 503 is installed inside the water blocking ring 502, and its main function is to support and hold up the lower scraping frame 903. By adjusting the position of the supporting ring 503, the distance between the lower scraping frame 903 and the packing tray 5 can be changed. When the air inlet adjusting member 3 descends, the protrusion on the packing plate 701 will press down the blocking block 1102 at a corresponding height, and the blocking block 1102 will gradually pull up the supporting ring 503 through the pulling rope 1001, thereby driving the lower scraping frame 903 to slide on the shaft rod 901 towards the packing tray 5. In this way, the lower scraping frame 903 can always be maintained at a proper cleaning position. When the air inlet adjusting member 3 descends to the lowest height, the lower scraping frame 903 and the packing tray 5 are in mutual contact, ensuring the cleaning effect of the packing tray 5. And during the cleaning process, the wind deflector 305 in the air inlet adjusting member 3 covers the air inlet 101, avoiding the splashing of the residual liquid outside the tower body 1 during scraping and reducing the waste of energy. When the air inlet adjusting member 3 rises and the tower body 1 operates normally, the supporting ring 503 drives the lower scraping frame 903 to reset and move downward again, increasing the distance between the lower scraping frame 903 and the packing tray 5, so that the cold air entering from the air inlet 101 can pass through the packing tray 5 more fully.

[0045] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A spray cooling tower with an antifreeze function, comprising a tower body (1) equipped with a spray mechanism (2), wherein a plurality of air inlets (101) are distributed on the side wall of the tower body (1), characterized in that: Also includes: An air inlet regulating member (3) is installed in the tower body (1) and is matched with the air inlet (101). A filling plate (5) is installed inside the tower body (1) below the spray mechanism (2), and a liquid discharge channel (501) is vertically opened on the outer side of the filling plate for the lifting and lowering of each air inlet regulating member (3); An elastic opening and closing mechanism (6) is installed in the liquid discharge channel (501), the air inlet adjustment member (3) is in abutment with the elastic opening and closing mechanism (6), and an air inlet preheating member (7) is installed on the inner side of the air inlet adjustment member (3) below the elastic opening and closing mechanism (6); When the air inlet adjustment member (3) is lowered to reduce the air volume at the air inlet (101), part of the hot waste water is discharged to the air inlet preheating member (7) through the drainage channel (501), and the hot waste water is used to preheat the airflow entering the air inlet (101); The air inlet adjustment member (3) comprises an adjustment ring (301) rotatably sleeved on the outside of the tower body (1) and a plurality of hollow vertical rods (302) vertically sliding on the inner wall of the tower body (1); a sliding rod (303) is fixedly connected to one side of the hollow vertical rod (302); a through groove (102) matching the sliding rod (303) is vertically provided on the tower body (1); an inclined groove (304) for inserting the end of the sliding rod (303) is provided on the inner wall of the adjustment ring (301); and a wind shield (305) is fixedly connected to the bottom of the hollow vertical rod (302).

2. A spray cooling tower with antifreeze function according to claim 1, characterized in that: The elastic opening and closing mechanism (6) comprises a valve plate (601) elastically hinged to the inner wall of the liquid discharge channel (501), and a plurality of liquid discharge grooves (602) are provided on the valve plate (601).

3. A spray cooling tower with antifreeze function according to claim 2, characterized in that: A pressure plate (306) abutting against the valve plate (601) is fixedly connected to the other side of the hollow vertical rod (302); the pressure plate (306) is located above the drainage groove (602) and seals it; the width of the pressure plate (306) is greater than the length of the drainage groove (602).

4. A spray cooling tower with antifreeze function according to claim 1, characterized in that: A driving motor (4) is installed on the outside of the tower body (1); a driving gear (401) is fixedly connected to the output shaft of the driving motor (4); and a driven gear ring (307) meshing with the driving gear (401) is externally connected to the outer surface of the adjusting ring (301).

5. The spray cooling tower with antifreeze function according to claim 1, characterized in that: The air inlet preheating element (7) comprises a filler plate (701) fixed to one side of a wind shield (305), the other side of the wind shield (305) being in contact with the inner wall of the tower body (1), and a plurality of heat-conducting columns (702) being inserted into the filler plate (701), wherein the plurality of heat-conducting columns (702) are evenly distributed at the air inlet (101).

6. A spray cooling tower with antifreeze function according to claim 1, characterized in that: The spray mechanism (2) comprises a spray pipe (201) surrounding the tower body (1), spray heads (202) being evenly distributed on the spray pipe (201), a wind shield ring (8) being installed in the tower body (1), the wind shield ring (8) being located below the spray pipe (201), and the wind shield ring (8) is also provided with an opening (801) located below each spray head (202).

7. A spray cooling tower with antifreeze function according to claim 6, characterized in that: An annular wind cavity (802) is installed at the bottom of the wind shield ring (8); the top of the annular wind cavity (802) is connected to the wind shield ring (8), and the connection point is staggered with the opening (801); an air inlet hose (803) is fixedly connected between the bottom of the annular wind cavity (802) and each hollow upright pole (302); a ventilation hole (308) is opened on one side of the hollow upright pole (302); and an air inlet hole (103) corresponding to the ventilation hole (308) is opened on the outer wall of the tower body (1).

8. The spray cooling tower with antifreeze function according to claim 1, characterized in that: The bottom of the packing tray (5) is fixedly connected to a water-isolating ring (502), a servo motor (9) is installed in the water-isolating ring (502), the output shaft of the servo motor (9) is fixedly connected to a shaft (901), the shaft (901) passes through the packing tray (5), and is sleeved with an upper scraper (902) and a lower scraper (903), and the packing tray (5) is located between the upper scraper (902) and the lower scraper (903).

9. A spray cooling tower with antifreeze function according to claim 8, characterized in that: The lower scraper (903) is vertically slidably connected to the shaft (901), a supporting ring (503) for supporting the lower scraper (903) is movably installed in the water-isolating ring (502), a traction member (10) is installed on the top of the supporting ring (503), and the traction member (10) is in abutment with the air inlet preheating member (7).

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