A mist elimination cooling tower

Abstract

The present application relates to a kind of mist elimination cooling towers, including tower body, the middle part of tower body is provided with spray pipe, spray pipe is divided into heat exchange chamber and condensation chamber with the cavity in tower body, condensation chamber is located above heat exchange chamber, and condensation chamber top end is provided with total gas outlet;Heat exchange chamber is provided with packing zone;Condensation chamber is provided with first water vapor recovery component, total gas outlet is provided with second water vapor recovery component, first water vapor recovery component realizes the recovery of large water drop, and second water vapor recovery component is used to realize the recovery of small water drop;Second water vapor recovery component includes recovery tank, second cooling component and air inlet pipe, second cooling component is located in recovery tank, air inlet end is opened in the side wall of recovery tank and air outlet is opened in upper side wall, air inlet end axis direction is tangent to the side wall of recovery tank, and air inlet pipe outlet is communicated with air inlet end.The present application can cool wet air twice to achieve the purpose of mist elimination and water vapor recovery, avoid the harm to natural environment and production.

Description

Technical Field

[0001] This invention relates to the field of cooling tower technology, and in particular to a fog-eliminating cooling tower. Background Technology

[0002] Cooling towers are essential cold-end equipment in production and daily life. Their main function is to cool the working medium using air as the cooling medium, either wet or dry. Whether it's generator sets in power plants or central air conditioning systems in office buildings, water is the most common working medium in these devices. Wet cooling towers are one of the most common types of cooling towers. In the process of air cooling water in a wet cooling tower, the air and water are in direct contact, which directly leads to an increase in air temperature and moisture content. The high-temperature air carrying a large amount of water vapor quickly comes into contact with and mixes with the surrounding cold air after flowing out of the cooling tower, causing its temperature to drop. Because the air flowing out of the cooling tower has a high moisture content and a very high dew point temperature, it easily forms droplets after cooling. This results in a large amount of white mist appearing at the cooling tower outlet when observed from the outside.

[0003] The large number of water droplets discharged from cooling towers, coupled with the frequent use of multiple cooling towers in production, results in a large number of small water droplets appearing around them, which can harm the natural environment and production. The main problems caused by these small water droplets include: (1) wasting a large amount of water resources; (2) reducing visibility, posing safety hazards for high-altitude operations, aircraft use, and traffic on surrounding roads; (3) the droplets may facilitate the adhesion of fine particles, contributing to smog; and (4) some production units, such as power plants, emit acidic pollutants, which may dissolve in the large number of water droplets discharged from the cooling towers, harming the health of surrounding production personnel and potentially corroding equipment, increasing safety hazards. Therefore, a fog-eliminating cooling tower is proposed to address these problems. Summary of the Invention

[0004] This invention provides a defogging cooling tower that can cool humid air twice to achieve defogging and water vapor recovery, thus avoiding harm to the natural environment and production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A fog-eliminating cooling tower includes a tower body, a spray pipe is provided in the middle of the tower body, the spray pipe divides the inner cavity of the tower body into a heat exchange chamber and a condensation chamber, the condensation chamber is located above the heat exchange chamber, and a main air outlet is provided at the top of the condensation chamber. The aforementioned heat exchange chamber is equipped with a packing zone; The aforementioned condenser chamber is equipped with a first water vapor recovery component, and the aforementioned main air outlet is equipped with a second water vapor recovery component. The first water vapor recovery component is used to recover large water droplets from the water vapor in the cooling air, and the second water vapor recovery component is used to recover small water droplets from the water vapor in the cooling air. The second water vapor recovery assembly includes a recovery box, a second cooling assembly, and an air inlet pipe. The second cooling assembly is located inside the recovery box. The recovery box has an air inlet on its side wall and an air outlet on its upper side wall. The axial direction of the air inlet is tangent to the side wall of the recovery box. The inlet of the air inlet pipe is connected to the main air outlet, and the outlet of the air inlet pipe is connected to the air inlet. An exhaust fan is provided at the air outlet, a condensation recovery device is provided on the outside of the tower body, and the second cooling component is connected to the condensation recovery device.

[0006] Preferably, the bottom sidewall of the inner cavity of the recovery box is provided with a conical structure, and a first water outlet is provided at the lowest point of the bottom sidewall of the inner cavity of the recovery box. The first water outlet is connected to a first return water pipe, and the outlet of the first return water pipe is located in the heat exchange chamber and above the packing area.

[0007] Preferably, there are multiple air intake ends and multiple air intake pipes. The outlets of the multiple air intake pipes are connected to the multiple air intake ends in a one-to-one correspondence. The inlets of the multiple air intake pipes are all connected to a main air intake pipe. The inlet of the main air intake pipe passes through the main air outlet and is located at the top of the condenser chamber. The inlet of the main air intake pipe faces downward and is configured as a flared opening.

[0008] Preferably, the second cooling assembly includes a plurality of second annular tubes arranged in sequence, with two adjacent second annular tubes connected by a pipe, and the outermost second annular tube connected to a second water inlet pipe and a second water outlet pipe, the second water inlet pipe and the second water outlet pipe being connected to the water outlet and water inlet of the condensation recovery device, respectively.

[0009] Preferably, the above-mentioned recycling bin is provided with multiple flow guide layers along the radial direction of its inner cavity. Each of the above-mentioned flow guide layers includes multiple flow guide plates. The two adjacent flow guide plates in each of the above-mentioned flow guide layers are spaced apart in the circumferential direction. The flow guide plates in the two adjacent flow guide layers are staggered in the circumferential direction. The upper end of the above-mentioned flow guide plates is fixed to the inner top side wall of the above-mentioned recycling bin.

[0010] Preferably, the inner peripheral sidewall of the recycling bin and the sidewall of the guide plate are both provided with guide grooves, and the guide grooves are arranged vertically downward.

[0011] Preferably, the first water vapor recovery assembly includes a first cooling assembly and a recovery group, the recovery group being located above the first cooling assembly, and the first cooling assembly being connected to the condensation recovery device; The aforementioned recycling group includes multiple recycling plates. The two ends of each recycling plate are connected to the inner peripheral sidewall of the tower body. Each recycling plate is inclined upwards in the same direction, and adjacent recycling plates are spaced apart.

[0012] Preferably, each of the above-mentioned recovery plates is provided with a water collection tank at its lower end. The water collection tank has a lowest point, and a second water outlet is provided at the lowest point of the water collection tank. The second water outlet is connected to a second return water pipe. Multiple of the above-mentioned second return water pipes are connected to a third return water pipe. The outlet of the third return water pipe is located in the heat exchange chamber and above the packing area.

[0013] Preferably, the first cooling assembly includes a plurality of first annular tubes arranged in sequence, two adjacent first annular tubes are connected by a pipe, and the outermost first annular tube is connected to a first inlet pipe and a first outlet pipe. The first inlet pipe and the first outlet pipe are respectively connected to the outlet and inlet of the condensation recovery device.

[0014] Preferably, the packing area includes an inner packing area and an outer packing area, the bottoms of the inner packing area and the outer packing area are flush, and the upper surface of the outer packing area is higher than the upper surface of the inner packing area.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The first water vapor recovery component achieves the initial recovery of water vapor in the air. After cooling, the large water droplets formed by condensation are recovered, thus achieving the initial recovery of water vapor and reducing the water vapor content in the air for the first time. The second water vapor recovery component works in conjunction with the condensation recovery device to achieve the second recovery of water vapor. It is used to cool the water vapor in the air into small water droplets and recover the small water droplets, thereby further reducing the water vapor content in the air. Ultimately, this greatly reduces the water vapor content in the exhaust air, lowers its dew point temperature, makes it less likely to form white fog, and avoids harm to the natural environment and production.

[0016] 2. By setting the positional relationship between the air inlet and the inner wall of the recovery box, air enters tangentially along the inner circumferential wall of the recovery box, thus naturally forming a vortex that generates centrifugal force on the precipitated water droplets. No external drive device is needed to generate additional centrifugal force, saving costs and making the structure relatively simpler. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall cooling tower according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of the recycling tank and the second cooling assembly in an embodiment of the present invention; Figure 3 This is a top view of the recycling plate in an embodiment of the present invention; Figure 4 This is a top view of a guide plate placed inside a recycling bin, according to another embodiment of the present invention. Figure 5 This is a top view of the guide plate and the first annular tube placed inside the recycling bin, according to another embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Tower body; 11. Heat exchange chamber; 12. Condensation chamber; 13. Main air outlet; 2. Spray pipe; 3. Packing zone; 31. Inner packing zone; 32. Outer packing zone; 4. First steam recovery assembly; 41. First cooling assembly; 411. First annular pipe; 412. First water inlet pipe; 413. First water outlet pipe; 42. Recovery group; 421. Recovery plate; 422. Connecting plate; 423. Second return water pipe; 5. Second water... Steam recovery assembly; 51. Recovery box; 501. Air inlet; 502. Air outlet; 52. Second cooling assembly; 521. Second annular pipe; 522. Second water inlet pipe; 523. Second water outlet pipe; 53. First return water pipe; 54. Air inlet pipe; 55. Main air inlet pipe; 56. Baffle plate; 6. Exhaust fan; 7. Condensation recovery device; 71. Water storage tank; 72. Radiator; 73. Water supply pump; 74. Return water pump. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] This invention provides a defogging cooling tower, such as... Figure 1As shown, the tower includes a tower body 1 with a main air outlet 13 at the top. A spray pipe 2 is installed in the middle of the tower body 1, with multiple spray heads hanging on the spray pipe 2. The inner cavity of the tower body 1 below the spray pipe 2 is configured as a heat exchange chamber 11. A packing zone 3 for cooling water is installed in the heat exchange chamber 11. Multiple air inlets are installed on the side wall of the tower body 1 below the packing zone 3, thereby activating the induced draft device 6 and opening the spray pipe 2 to achieve contact between air and water in the heat exchange chamber 11, thereby cooling the water. Air containing a large amount of water vapor exits from the main air outlet. To reduce the water vapor content in the air discharged from the tower body 1, the inner cavity of the tower body 1 above the spray pipe 2 is set as a cooling chamber. The main air outlet 13 is connected to the cooling chamber. A condensation recovery device 7 is installed outside the tower body 1 for cooling and water circulation. A first water vapor recovery component 4 is installed in the cooling chamber, and a second water vapor recovery component 5 is installed at the main air outlet 13. The air flows from bottom to top. The first water vapor recovery component 4 achieves the first recovery of water vapor in the air, thus cooling the air. Afterwards, the large water droplets formed by condensation are recovered, achieving the first recovery of water vapor and reducing the water vapor content in the air for the first time. The second water vapor recovery component 5 works in conjunction with the condensation recovery device 7 to achieve the second recovery of water vapor, which is used to cool the water vapor in the air into small water droplets and recover the small water droplets, thereby further reducing the water vapor content in the air. In summary, the first time the water vapor in the air is precipitated into large water droplets and recovered, thereby reducing the water vapor in the air and lowering the air dew point temperature. Then, under the action of the cooling component in the second water vapor recovery component 5, only small water droplets are precipitated and recovered, reducing the water vapor in the air again and lowering the air dew point temperature again. As a result, the air discharged from the outlet 502 is less likely to mix with the outside air to form white fog, achieving the purpose of defogging. Moreover, most of the water vapor in the air is recovered, which will not cause waste of water resources. Furthermore, an exhaust fan 6 is provided at the outlet 502. The exhaust fan 6 can be an air pump, and the inlet of the air pump is located at the outlet 502, so that the air can flow stably.

[0024] Specifically, such as Figure 2As shown, the second water vapor recovery assembly 5 includes a recovery box 51, a second cooling assembly 52, and an air inlet pipe 54. The second cooling assembly 52 is located inside the recovery box 51. The recovery box 51 has an air inlet end 501 on its side wall and an air outlet 502 on its upper side wall. The inlet of the air inlet pipe 54 is connected to the main air outlet 13, and the outlet of the air inlet pipe 54 is connected to the air inlet end 501. Thus, air passing through the first water vapor recovery assembly 4 enters the recovery box 51 through the air inlet pipe 54. Then, the second cooling assembly 52 inside the recovery box 51 cools the air, causing water droplets to precipitate. Because the precipitated water droplets are small and lightweight, to recover these small droplets, the axis of the air inlet end 501 is tangent to the side wall of the recovery box 51. Air flows tangentially along the side wall of the recycling box 51 through the air inlet 501, eventually forming a vortex. This causes the precipitated water droplets to generate centrifugal force, which throws them onto the side wall of the recycling box 51. The water droplets then flow down the side wall to the bottom of the inner cavity, thus completing the collection of the water droplets. Specifically, the inner cavity of the recycling box 51 can be cylindrical or conical, as long as the inner circumferential side wall is curved. By setting the positional relationship between the air inlet 501 and the inner side wall of the recycling box 51, air enters along the inner circumferential side wall of the recycling box 51, naturally forming a vortex that generates centrifugal force on the precipitated water droplets. No external drive device is needed to generate centrifugal force, saving costs and making the structure relatively simpler.

[0025] To achieve the recycling and full utilization of the recovered water, the bottom sidewall of the inner cavity of the recovery tank 51 is designed with a conical structure, thus having a lowest point. A first water outlet is located at the lowest point of the bottom sidewall of the inner cavity of the recovery tank 51. The first water outlet is connected to a first return water pipe 53. The outlet of the first return water pipe 53 is located inside the heat exchange chamber 11 and above the packing area 3. Thus, small water droplets thrown onto the sidewall of the recovery tank 51 by centrifugal force flow along the sidewall to the bottom sidewall of the inner cavity of the recovery tank 51, and then flow through the first water outlet to the first return water pipe 53, and then through the first return water pipe 53 to the packing. Above zone 3, further cooling is performed to achieve water vapor recovery and reuse. Furthermore, a first control valve is installed on the first return water pipe 53 on the outside of the tower body 1. The first control valve can be a solenoid valve, which is connected to an external control device. By controlling the opening and closing time of the first control valve within a certain period of time, the water in the first return water pipe 53 can be guaranteed to form a water column. This can, to a certain extent, prevent small water droplets from flowing into the heat exchange chamber 11 and being carried away by air evaporation. For example, the first control valve can be closed for 5 minutes and then opened for 5 minutes, and the cycle can be repeated. The above time is for example use. The specific time can be determined by the user according to the actual recovery situation.

[0026] Furthermore, there are multiple air inlets 501, which are evenly distributed circumferentially on the recovery box 51. There are also multiple air inlet pipes 54, with their outlets connected to the multiple air inlets 501. This allows air to enter the recovery box 51 from multiple tangential directions, making it easier and faster to form a vortex inside the recovery box 51. To a certain extent, the initial centrifugal force generated will be greater, and the small water droplets generated by cooling inside the recovery box 51 will be more easily thrown onto the side wall of the recovery box 51. Moreover, the inlets of the air inlets 54 are all connected to the main air inlet pipe 55. The inlet of the main air inlet pipe 55 passes through the main air outlet 13 and is located at the top of the condensation chamber 12. The inlet of the main air inlet pipe 55 faces downward and is set as a bell mouth. The size of the bell mouth is slightly smaller than the inner diameter of the tower body 1, allowing the heat exchange air to enter the recovery box 51, thereby relatively accelerating the recovery efficiency.

[0027] Specifically, the second cooling assembly 52 includes multiple sequentially nested second annular pipes 521. Adjacent second annular pipes 521 are connected by a pipe. The outermost second annular pipe 521 is connected to a second inlet pipe 522 and a second outlet pipe 523. The condensate recovery device 7 includes a water storage tank 71, a radiator 72, a water supply pump 73, and a return pump 74. The water storage tank 71 and the radiator 72 are connected. The outlet of the radiator 72 is connected to a main water supply pipe. The water supply pump 73 is installed on the main water supply pipe, which is connected to the second inlet pipe 522. The inlet of the water storage tank 71 is connected to a return pipe 523. 4. Installed on the return water main pipe, which is connected to the second outlet water pipe 523, so that under the action of the water storage tank 71, radiator 72, water supply pump 73 and return water pump 74, the cooling water in the second annular pipe 521 is continuously circulated to cool the air entering the inner cavity of the recovery box 51. Moreover, the disc-shaped pipe formed by multiple sequentially nested second annular pipes 521 can cover the inner cavity of the recovery box 51 in the radial direction, so as to fully cool the air in the recovery box 51. Furthermore, the second annular pipe 521 is suspended on the inner top side wall of the recovery box 51, thereby fixing the disc-shaped pipe formed by multiple second annular pipes 521.

[0028] In another embodiment, such as Figure 4-5As shown, the recovery box 51 has multiple flow guide layers arranged radially along its inner cavity. Each flow guide layer includes multiple flow guide plates 56, and adjacent flow guide plates 56 in each flow guide layer are spaced apart in the circumferential direction. The flow guide plates 56 in adjacent flow guide layers are staggered in the circumferential direction. Thus, when air enters the recovery box 51 from the air inlet 501, it diffuses inward through the gap between the two flow guide plates 56 in the same layer. Under the guidance of the flow guide plates 56, the air quickly fills the entire inner cavity of the recovery box 51. It is equivalent to the multiple flow guide layers dividing the entire inner cavity of the recovery box 51 into multiple multi-layer cooling areas. The small water droplets in the air in each layer have centrifugal force, and under the action of centrifugal force, they are thrown onto the nearest flow guide plate 56. The water then flows along the side wall of the guide plate 56 to the bottom of the recovery box 51, preventing the water droplets from being too low in mass to be thrown to the inner wall of the recovery box 51 under the action of centrifugal force, thus failing to be recovered and being carried away by the air. Moreover, the upper end of each guide plate 56 is fixed to the inner top side wall of the recovery box 51, and the air outlet 502 is connected to the cooling area formed by the innermost guide layer. Thus, the air will not escape from the upper part of the inner cavity of the recovery box 51, but can only enter the center of the inner cavity of the recovery box 51 layer by layer along the guide plate 56, that is, enter the area formed by the innermost guide layer, and then flow out from the air outlet 502. This increases the residence time of the air in the recovery box 51, the cooling time is more sufficient, the small water droplets precipitated in the air are recovered more fully, and the water vapor content in the air is further reduced. Furthermore, to ensure that the small water droplets thrown onto the side wall of the recovery box 51 and the guide plate 56 are no longer carried away by the air, vertically downward guide grooves are provided on the inner circumferential side wall of the recovery box 51 and the side wall of the guide plate 56. As a result, the small water droplets thrown into the guide grooves will flow more smoothly along the guide grooves to the bottom of the inner cavity of the recovery box 51 due to the obstruction of the guide groove side wall. Correspondingly, the multi-layer guide layer divides the entire inner cavity of the recovery box 51 into multiple multi-layer cooling areas. The number of the divided areas is equal to the number of the second annular pipes 521. Multiple second annular pipes 521 are placed in multiple cooling areas. For example, in this embodiment, there are four second annular pipes 521, so there are three guide layers. The three guide layers divide the inner cavity of the recovery box 51 into four multi-layer cooling areas. The four annular pipes are placed in the four cooling areas, so that each cooling area has an annular pipe to cool the air inside, resulting in better cooling effect. The cross-distribution can further reduce the water vapor content in the air, making it less likely for the air exiting the tower body 1 to form white fog.

[0029] Specifically, such as Figure 1 and 3As shown, the first water vapor recovery assembly 4 includes a first cooling assembly 41 and a recovery group 42 for recovering water droplets. The recovery group 42 is located above the first cooling assembly 41. The first cooling assembly 41 works in conjunction with the condensation recovery device 7 to achieve the first cooling of water vapor in the air. Because the water vapor content in the air is high at this time, the water droplets condensed from the air for the first time are large water droplets. Under the action of gravity, they will fall into the heat exchange chamber 11, realizing the recovery of large water droplets and the recovery of the first precipitated water droplets. The precipitated small water droplets are light in mass and will continue to move upward due to the air. However, they will be blocked by the recovery group 42 above and recovered, realizing the recovery of the second precipitated water droplets. Thus, with the cooperation of the first cooling assembly 41 and the recovery group 42, the water vapor in the air is reduced.

[0030] Specifically, the first cooling assembly 41 includes multiple first annular pipes 411 arranged in sequence. Adjacent first annular pipes 411 are connected by pipes. The outermost first annular pipe 411 is connected to a first inlet pipe 412 and a first outlet pipe 413. The first inlet pipe 412 is connected to the main water supply pipe, and the first outlet pipe 413 is connected to the main return water pipe. Thus, under the action of the water storage tank 71, radiator 72, water supply pump 73, and return water pump 74, the cooling water in the first annular pipe 411 is continuously circulated to cool the air that has just entered the cooling chamber. Moreover, the disc-shaped pipe formed by the multiple first annular pipes 411 arranged in sequence can cover the inner cavity of the tower body 1 in the radial direction, thereby fully cooling the air that has just entered the cooling chamber. Furthermore, the first annular pipes 411 are suspended on the inner peripheral side wall of the tower body 1, thereby fixing the disc-shaped pipe formed by the multiple first annular pipes 411.

[0031] Specifically, the recovery group 42 includes multiple recovery plates 421. The two ends of each recovery plate 421 are connected to the inner peripheral side wall of the tower body 1, and each recovery plate 421 is inclined upwards in the same direction. Adjacent recovery plates 421 are spaced apart. When the small water droplets in the air passing through the first cooling component 41 pass through the recovery plate 421, most of the small water droplets in the air will be blocked by the recovery plate 421 and thus adhere to the recovery plate 421. Then, they will condense into large water droplets on the side wall of the recovery plate 421 and fall into the heat exchange chamber 11.

[0032] In another embodiment, a connecting plate 422 is provided at the lower end of each recovery plate 421. The connecting plate 422 is inclined upward and its two ends are connected to the inner peripheral sidewall of the tower body 1. Thus, the recovery plate 421, the connecting plate 422 and the inner peripheral sidewall of the tower body 1 form a water collection tank. Small water droplets blocked by the recovery plate 421 will fall into the water collection tank below. The water collection tank has a lowest point and a second water outlet is provided at the lowest point of the water collection tank. The second water outlet is connected to a second return water pipe 423. Multiple second return water pipes 423 are connected to a third return water pipe. The outlet of the third return water pipe is located in the heat exchange chamber 11 and above the packing area 3. Thus, all the water in the water collection tank will converge into the third return water pipe and then flow into the heat exchange chamber 11 through the third return water pipe. Furthermore, the middle part of the third return water pipe can be located on the outside of the tower body 1. A second control valve is installed on the third return water pipe on the outside of the tower body 1. The second control valve can be a solenoid valve, which is connected to an external control device. By controlling the opening and closing time of the second control valve within a certain period of time, the water in the third return water pipe can be made into a water column. This can, to a certain extent, prevent small water droplets from flowing into the heat exchange chamber 11 and being carried away by air evaporation. For example, the second control valve can be closed for 5 minutes and then opened for 5 minutes, and the cycle can be repeated. The above time is an example. The specific time can be determined by the user according to the actual recycling situation.

[0033] Preferably, the bottoms of the inner packing area 31 and the outer packing area 32 are flush, and the widths of the inner packing area 31 and the outer packing area 32 along the radial direction of the inner cavity of the tower body 1 are equal. The upper end face of the outer packing area 32 is higher than the upper end face of the inner packing area 31. In this embodiment, the height of the upper end face of the outer packing area 32 above the upper end face of the inner packing area 31 is about 1 / 3 of the height of the inner packing area 31. However, in actual use, the user can design the height ratio of the inner packing area 31 and the outer packing area 32 according to the actual processing capacity, because placing the outer packing area higher is conducive to making fuller use of the cooling capacity of the cooling tower.

[0034] In summary, multiple first annular pipes 411, in conjunction with the condensation recovery device 7, cause the air, which has just entered the condensation chamber 12 and is saturated with a large amount of water vapor, to precipitate large water droplets. These droplets are then recovered under gravity, achieving the first reduction and recovery of water vapor in the air. As the air continues to rise, the small water droplets precipitated in the air are blocked by multiple recovery plates 421, preventing them from rising further with the air, thus achieving the second reduction and recovery of water vapor in the air. Then, the air exits the tower body 1 from the main outlet 13 and enters the recovery box 51 through the inlet pipe 54. With the cooperation of the recovery box 51, the first annular pipes 411, and the condensation recovery device 7, small water droplets are precipitated from the air and recovered, achieving the third reduction and recovery of water vapor in the air. After three reductions and recoveries of water vapor in the air, the water vapor content in the exhaust air is significantly reduced, making it less likely to form white fog, thereby avoiding harm to the natural environment and production.

[0035] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A fog-eliminating cooling tower, characterized in that, The tower includes a tower body, a spray pipe is provided in the middle of the tower body, the spray pipe divides the inner cavity of the tower body into a heat exchange chamber and a condensation chamber, the condensation chamber is located above the heat exchange chamber, and a main air outlet is opened at the top of the condensation chamber; The heat exchange chamber is equipped with a packing zone; The condenser chamber is equipped with a first water vapor recovery component, and the main air outlet is equipped with a second water vapor recovery component. The first water vapor recovery component is used to recover large water droplets from water vapor in the cooling air, and the second water vapor recovery component is used to recover small water droplets from water vapor in the cooling air. The second water vapor recovery assembly includes a recovery box, a second cooling assembly, and an air inlet pipe. The second cooling assembly is located inside the recovery box. The recovery box has an air inlet end on its side wall and an air outlet on its upper side wall. The axial direction of the air inlet end is tangent to the side wall of the recovery box. The inlet of the air inlet pipe is connected to the main air outlet, and the outlet of the air inlet pipe is connected to the air inlet end. An air-guiding device is provided at the air outlet, and a condensation recovery device is provided on the outside of the tower body. The second cooling component is connected to the condensation recovery device. There are multiple air intake ends and multiple air intake pipes. The outlets of the multiple air intake pipes are connected to the multiple air intake ends in a one-to-one correspondence. The inlets of the air intake pipes are all connected to a main air intake pipe. The inlet of the main air intake pipe passes through the main air outlet and is located at the top of the condenser chamber. The inlet of the main air intake pipe faces downward and is set as a flared mouth. The second cooling assembly includes a plurality of second annular tubes arranged in sequence. Two adjacent second annular tubes are connected by a pipe. The outermost second annular tube is connected to a second water inlet pipe and a second water outlet pipe. The second water inlet pipe and the second water outlet pipe are respectively connected to the water outlet and water inlet of the condensation recovery device. The recycling bin has multiple flow guide layers arranged radially along its inner cavity. Each flow guide layer includes multiple flow guide plates. Adjacent flow guide plates in each flow guide layer are spaced apart in the circumferential direction. The flow guide plates in adjacent flow guide layers are staggered in the circumferential direction. The upper end of the flow guide plate is fixed to the inner top side wall of the recycling bin. Both the inner circumferential sidewall of the recycling bin and the sidewall of the guide plate are provided with guide grooves, which are arranged vertically downwards.

2. The defogging cooling tower according to claim 1, characterized in that, The bottom sidewall of the inner cavity of the recycling tank is set with a conical structure, and a first water outlet is provided at the lowest point of the bottom sidewall of the inner cavity of the recycling tank. The first water outlet is connected to a first return water pipe, and the outlet of the first return water pipe is located in the heat exchange chamber and above the packing area.

3. The defogging cooling tower according to claim 1, characterized in that, The first water vapor recovery assembly includes a first cooling assembly and a recovery group, the recovery group being located above the first cooling assembly, and the first cooling assembly being connected to the condensation recovery device; The recycling group includes multiple recycling plates. The two ends of each recycling plate are connected to the inner peripheral side wall of the tower body. Each recycling plate is inclined upwards in the same direction, and adjacent recycling plates are spaced apart.

4. The defogging cooling tower according to claim 3, characterized in that, Each of the recovery plates is provided with a water collection tank at its lower end. The water collection tank has a lowest point and a second water outlet is provided at the lowest point of the water collection tank. The second water outlet is connected to a second return water pipe. Multiple second return water pipes are connected to a third return water pipe. The outlet of the third return water pipe is located in the heat exchange chamber and above the packing area.

5. The defogging cooling tower according to claim 3, characterized in that, The first cooling assembly includes a plurality of first annular tubes arranged in sequence. Two adjacent first annular tubes are connected by a pipe. The outermost first annular tube is connected to a first water inlet pipe and a first water outlet pipe. The first water inlet pipe and the first water outlet pipe are respectively connected to the water outlet and water inlet of the condensation recovery device.

6. The defogging cooling tower according to claim 1, characterized in that, The packing area includes an inner packing area and an outer packing area. The bottoms of the inner packing area and the outer packing area are flush, and the upper surface of the outer packing area is higher than the upper surface of the inner packing area.

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