Chlorine hydrogen treatment device with anticorrosion function

Abstract

This utility model discloses a chlorine-hydrogen treatment device with anti-corrosion function, relating to the field of industrial waste gas treatment technology. It includes a tower body, with an inlet pipe fixedly connected to the outer wall of the tower body and an outlet pipe fixedly connected to the top of the tower body. An inner liner is fixedly installed inside the inner cavity of the tower body, and two permeable baffles are fixedly installed inside the inner cavity of the liner, with a packing layer fixedly installed between the two permeable baffles. A liquid injection pipe is fixedly installed inside the inner liner, and a spray assembly is installed on the top of the permeable baffles. The top of the liquid injection pipe passes through the permeable baffles and the packing layer sequentially, and is fixedly connected to the spray assembly. The uniform and complete spraying by the spray assembly forms a liquid film barrier, isolating the highly corrosive chlorine gas from the internal components of the tower, avoiding localized electrochemical corrosion caused by gas concentration differences. Furthermore, the uniform spraying promotes medium flow, reduces liquid accumulation and scaling, avoids under-deposit corrosion, effectively reduces the corrosion rate of chlorine gas on the cooling tower equipment, and effectively extends the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste gas treatment technology, specifically a chlorine-hydrogen treatment device with anti-corrosion function. Background Technology

[0002] The chlorine and hydrogen treatment unit is the core hub connecting the electrolysis process and subsequent product processing in the chlor-alkali industry. Its core function is to deeply purify, treat, and stabilize the crude chlorine and hydrogen produced by the electrolyzer, providing qualified raw materials for downstream processes. It is a key link to achieve efficient utilization of chlorine and hydrogen resources.

[0003] The chlorine-hydrogen treatment unit mainly processes chlorine-hydrogen gas through steps such as cooling, drying, purification, and compression. Among these steps, the cooling tower is the core equipment, which mainly achieves the effects of cooling and condensing moisture through gas-liquid contact. When high-temperature chlorine-hydrogen gas enters the cooling tower, it comes into counter-current contact with the cooling medium sprayed down, using heat exchange to reduce the gas temperature.

[0004] However, since both chlorine and hydrogen are highly corrosive gases, especially in humid environments, chlorine reacts with water to produce corrosive substances such as hydrochloric acid and hypochlorous acid, which can severely corrode equipment. If the cooling tower's spray system uses a fixed-range spray, the cooling medium cannot fully cover the space inside the tower, and uncovered areas are easily formed in the gaps between the packing and the corners of the tower walls. These areas are exposed to high concentrations of corrosive gases for a long time, which can cause rapid corrosion, leading to packing blockage and pipe leaks. At the same time, the shedding of corrosion products can also pollute the gas, reduce gas purity, and even threaten the safe and stable operation of the equipment, significantly increasing the frequency of equipment maintenance and maintenance costs.

[0005] Therefore, this utility model provides a chlorine-hydrogen treatment device with anti-corrosion function to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a chlorine-hydrogen treatment device with anti-corrosion function to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A chlorine-hydrogen treatment device with anti-corrosion function includes a tower body, an air inlet pipe fixedly connected to the outer wall of the tower body, an air outlet pipe fixedly connected to the top of the tower body, an inner liner fixedly installed in the inner cavity of the tower body to prevent the tower body from being corroded, and two breathable baffles fixedly installed in the inner cavity of the inner liner, and a packing layer fixedly installed between the two breathable baffles to increase the gas-liquid contact area.

[0009] The inner liner is fixedly installed with a liquid injection pipe for conveying cooling medium. The top of the ventilated baffle is equipped with a spray assembly for ensuring full mixing of gas and liquid. The top of the liquid injection pipe passes through the ventilated baffle and the packing layer in sequence and is fixedly connected to the spray assembly. Cooling medium is conveyed to the spray assembly through the liquid injection pipe. The flowing cooling medium drives the spray assembly to rotate, expands the spray range, ensures full contact and mixing of gas and liquid, and reduces the risk of corrosion of the equipment by chlorine and hydrogen gas.

[0010] One end of the air inlet pipe is connected to the packing layer, and the outer wall of the other end of the air inlet pipe is fixedly fitted with a sealing component for self-compensating corrosion. The top of the inner liner is fixedly installed with a gas collection component for guiding the treated gas out.

[0011] As a further embodiment of this utility model, the spray assembly includes a rotating sleeve, which is rotatably mounted on the top end of the injection pipe via a bearing. A diversion pipe is fixedly connected to the outer wall of the rotating sleeve, and multiple spray pipes are fixedly installed on the bottom surface of the diversion pipe. A rotating nozzle for expanding the spray range is rotatably mounted on the bottom end of each spray pipe.

[0012] As a further embodiment of this utility model, the inner cavity of the rotating sleeve is rotatably mounted with a rotating rod via a bearing, which is used to drive the diverter pipe to rotate, so as to further expand the spray range of the rotating nozzle. The outer wall of the rotating rod is fixedly fitted with a drive blade for providing rotational power.

[0013] As a further embodiment of this utility model, the spray assembly also includes a connecting frame, which is fixedly located on the inner wall of the spray pipe. The bottom end of the connecting frame is ball-hinged with a rotating shaft, and the outer wall of the rotating shaft is fixedly fitted with rotating blades for providing rotational power to the rotating nozzle.

[0014] As a further embodiment of this utility model, the sealing assembly includes a fixing tube, which is fixedly sleeved on the outer wall of the air inlet pipe. An outer cover tube is fixedly sleeved on the outer wall of the fixing tube. A pushing tube is slidably connected to the inner cavity of the outer cover tube. A sealing ring for preventing gas leakage is fixedly installed in the inner cavity of the pushing tube.

[0015] As a further embodiment of this utility model, the gas collection assembly consists of a drive motor, a rotating shaft, and gas collection fan blades. The drive motor is fixedly installed on the top surface of the tower body, the top end of the rotating shaft is fixedly connected to the output end of the drive motor, and the bottom end of the rotating shaft passes through the tower body and is fixedly connected to the gas collection fan blades.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In use, this utility model delivers the cooling medium to the spray assembly through the injection pipe, drives the paddle to rotate the rotating sleeve, and coordinates with the spiral plate to guide the water flow and push the rotating nozzle to rotate. The double rotation ensures that the spray range covers the entire cross-section of the packing layer, maximizing the gas-liquid contact area, enhancing the cooling effect and mixing efficiency, reducing the corrosive activity of the gas, and ensuring the smooth progress of subsequent processes. At the same time, the uniform and complete spray forms a liquid film barrier, isolating the highly corrosive chlorine gas from the internal components of the tower, avoiding localized electrochemical corrosion caused by differences in gas concentration. Furthermore, the uniform spray promotes medium flow, reduces liquid accumulation and scaling, avoids under-deposit corrosion, effectively reduces the corrosion rate of chlorine gas on the cooling tower equipment, and effectively extends the service life of the equipment.

[0018] 2. When this utility model is used, the sealing ring is continuously pressed against the gas pipeline interface by the thrust spring. The elastic deformation automatically compensates for the gap changes caused by corrosion, ensuring the stability of the dynamic seal, reducing the frequency of manual maintenance, effectively preventing the leakage of corrosive gas, improving the sealing performance and operational safety of the device, and combined with the drive motor driving the gas collecting fan blades to form a directional airflow, accelerating the discharge of the treated gas, avoiding the impact of gas retention in the tower on the processing efficiency, and ensuring the continuity of the process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a chlorine-hydrogen treatment device with corrosion resistance.

[0020] Figure 2 This is a structural cross-sectional view of a chlorine-hydrogen treatment device with corrosion-resistant function.

[0021] Figure 3 A cross-sectional view of the spray assembly in a chlorine-hydrogen treatment device with corrosion resistance. Figure 1 .

[0022] Figure 4 A cross-sectional view of the spray assembly in a chlorine-hydrogen treatment device with corrosion resistance. Figure 2 .

[0023] Figure 5 This is a structural cross-sectional view of a sealing component in a chlorine-hydrogen treatment device with corrosion protection function.

[0024] In the diagram: 1. Tower body; 2. Inlet pipe; 3. Outlet pipe; 4. Inner liner; 5. Ventilation baffle; 6. Packing layer; 7. Liquid injection pipe;

[0025] 8. Spray assembly; 801. Rotating sleeve; 802. Diverter pipe; 803. Spray pipe; 804. Rotating nozzle; 805. Rotating rod; 806. Drive blade; 807. Fixing frame; 808. Slip ring; 809. Connecting frame; 810. Rotating shaft; 811. Rotating blade; 812. Mist plate; 813. Spiral plate; 814. Limiting block;

[0026] 9. Sealing assembly; 901. Fixing tube; 902. Outer cover tube; 903. Push tube; 904. Sealing ring; 905. Thrust spring; 906. Protrusion;

[0027] 10. Air collection assembly; 101. Drive motor; 102. Rotating shaft; 103. Air collection fan blades; 104. Limiting plate; 11. Water inlet pipe; 12. Water outlet pipe. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1 , Figure 2 In this embodiment of the present invention, a chlorine-hydrogen treatment device with anti-corrosion function includes a tower body 1, an air inlet pipe 2 fixedly connected to the outer wall of the tower body 1, an air outlet pipe 3 fixedly connected to the top of the tower body 1, an inner liner 4 fixedly installed in the inner cavity of the tower body 1 to prevent the tower body 1 from being corroded, two breathable baffles 5 fixedly installed in the inner cavity of the inner liner 4, and a packing layer 6 fixedly installed between the two breathable baffles 5 to increase the gas-liquid contact area.

[0030] The inner liner 4 is fixedly installed with a liquid injection pipe 7 for conveying cooling medium. The top of the ventilated baffle 5 is installed with a spray assembly 8 for ensuring full mixing of gas and liquid. The top of the liquid injection pipe 7 passes through the ventilated baffle 5 and the packing layer 6 in sequence and is fixedly connected to the spray assembly 8. The cooling medium is conveyed to the spray assembly 8 through the liquid injection pipe 7. The flowing cooling medium drives the spray assembly 8 to rotate, expand the spray range, ensure full contact and mixing of gas and liquid, and reduce the risk of corrosion of the equipment by chlorine and hydrogen gas.

[0031] One end of the air inlet pipe 2 is connected to the packing layer 6, and the outer wall of the other end of the air inlet pipe 2 is fixedly fitted with a sealing component 9 for self-compensating corrosion, so as to maintain the sealing performance continuously, prevent the leakage of corrosive gases such as chlorine hydrogen gas, ensure the safety and sealing of the device operation, and reduce equipment damage and safety risks caused by corrosion leakage. The top of the inner liner 4 is fixedly installed with a gas collection component 10 for guiding the treated gas to be discharged.

[0032] It should be noted that the tower body 1 and the liquid injection pipe 7 are both made of fiberglass, and the inner liner 4 and the spray assembly 8 are both made of polytetrafluoroethylene. At the same time, the inner wall surfaces of the tower body 1 and the inner liner 4 are coated with acid-resistant paint to form a dense film layer to isolate air and moisture, which can prevent corrosion of the equipment to a certain extent. In addition, the interior of the inner liner 4 adopts a smooth curved surface design to facilitate the timely discharge of condensate and prevent the accumulation of acid liquid generated by the reaction of hydrogen chlorine gas with water.

[0033] Please see Figure 2 , Figure 3 , Figure 4 The spray assembly 8 includes a rotating sleeve 801, which is rotatably sleeved on the top end of the injection tube 7 via a bearing. A diversion tube 802 is fixedly connected to the outer wall of the rotating sleeve 801. Multiple spray tubes 803 are fixedly installed on the bottom surface of the diversion tube 802. A rotating nozzle 804 for expanding the spray range is rotatably sleeved at the bottom end of each spray tube 803.

[0034] It should be noted that there are four diversion pipes 802, which are symmetrically and evenly distributed on the outer surface of the rotating sleeve 801. At the same time, the expansion range of the four diversion pipes 802 is equal to the diameter of the packing layer 6, so that when the cooling medium is sprayed out through the rotating nozzle 804, it can accurately cover the entire cross section of the packing layer 6, ensuring that the interior of the packing layer 6 can fully contact the cooling medium, effectively improving the gas-liquid exchange efficiency to enhance the cooling effect, and avoiding uneven spraying, thereby reducing the risk of corrosion of the equipment by chlorine and hydrogen gas and ensuring the stable operation of the device.

[0035] It should also be noted that an inlet pipe 11 and an outlet pipe 12 are fixedly installed on the bottom of the outer wall of the tower body 1, and one end of the inlet pipe 11 passes through the tower body 1 and is fixedly connected to the injection pipe 7.

[0036] The inner cavity of the rotating sleeve 801 is rotatably mounted with a rotating rod 805 via a bearing, which is used to drive the diverter pipe 802 to rotate, so as to further expand the spray range of the rotating nozzle 804. The outer wall of the rotating rod 805 is fixedly sleeved with a drive blade 806 for providing rotational power.

[0037] It should be noted that a fixed frame 807 is fixedly connected inside the rotating sleeve 801. The bottom end of the rotating rod 805 is rotatably connected to the fixed frame 807 through a bearing, and the top end of the rotating rod 805 is fixedly connected to the inner wall of the rotating sleeve 801, forming a stable rotating support structure. At the same time, a sealing ring gasket is fixedly connected between the liquid injection pipe 7 and the fixed frame 807. The two are tightly fitted together through the ring gasket to form a reliable seal, which effectively prevents the leakage of cooling medium, ensures the continuity and stability of medium transportation, and can also isolate corrosive gases such as chlorine and hydrogen gas from entering the connection gap, avoiding sealing failure due to corrosion of the contact surface, thereby ensuring the safety and durability of equipment operation.

[0038] It should also be noted that a slip ring 808 is fixedly installed at the bottom of the inner wall of the rotating sleeve 801, and a sliding groove is provided on the outer wall of the top end of the injection tube 7 to provide sliding for the slip ring 808, and the slip ring 808 is located in the sliding groove.

[0039] The spray assembly 8 also includes a connecting frame 809, which is fixedly located on the inner wall of the spray pipe 803. The bottom end of the connecting frame 809 is ball-hung with a rotating shaft 810, and the outer wall of the rotating shaft 810 is fixedly fitted with a rotating blade 811 for providing rotational power to the rotating nozzle 804.

[0040] It should be noted that a perforated plate 812 for forming water mist is fixedly connected to the bottom end of the rotating shaft 810, and the perforated plate 812 is fixedly connected to the inner wall of the rotating nozzle 804. A spiral plate 813 for guiding the water flow to rotate is fixedly installed on the inner wall of the spray pipe 803. The water flow entering the spray pipe 803 is guided to rotate by the spiral plate 813. The rotating water flow drives the rotating blade 811 to rotate, which in turn causes the perforated plate 812 to drive the rotating nozzle 804 to rotate. This effectively expands the spray range of the rotating nozzle 804, makes the cooling medium contact the packing layer 6 more evenly, enhances the gas-liquid mixing efficiency, improves the cooling effect, and reduces the risk of corrosion.

[0041] It should also be noted that a limiting block 814 is fixedly installed on the inner wall of the rotating nozzle 804. The limiting block 814 prevents the rotating nozzle 804 from slipping and provides guidance for the rotation of the rotating nozzle 804. The outer wall of the spray pipe 803 has an outer groove for providing rotation for the limiting block 814, and the limiting block 814 is located in the outer groove. At the same time, the outer groove has a certain cleaning angle, which can help adjust the spray angle when the rotating nozzle 804 rotates, further optimize the spray coverage, ensure uniform distribution of the cooling medium, enhance the stability of the rotating structure, avoid loosening of the connection due to vibration or corrosion, and ensure long-term reliable operation of the spray assembly 8.

[0042] Please see Figure 1 , Figure 2 , Figure 5 The sealing assembly 9 includes a fixing tube 901, which is fixedly sleeved on the outer wall of the air inlet pipe 2. An outer cover tube 902 is fixedly sleeved on the outer wall of the fixing tube 901. A push tube 903 is slidably connected to the inner cavity of the outer cover tube 902. A sealing ring 904 for preventing gas leakage is fixedly installed in the inner cavity of the push tube 903.

[0043] It should be noted that the outer casing 902 can be fixedly connected to the gas delivery pipe used for conveying gas by bolts. A thrust spring 905 is fixedly installed on the inner wall of the outer casing 902. One end of the thrust spring 905 is fixedly connected to the push tube 903. The elastic deformation of the thrust spring 905 drives the push tube 903, so that the sealing ring 904 continuously and tightly fits the port of the gas delivery pipe. Utilizing the elastic self-compensation characteristic of the thrust spring 905, the contact force of the sealing ring 904 is automatically adjusted to ensure dynamic sealing effect, prevent leakage of corrosive gases such as chlorine hydrogen gas, effectively reduce the frequency of manual maintenance, improve the sealing performance and operational safety of the device, and avoid the aggravation of equipment corrosion or safety risks caused by leakage. At the same time, multiple sets of thrust springs 905 are provided, adopting a multi-spring layout to effectively reduce the risk of off-center loading.

[0044] It should also be noted that a protrusion 906 is fixedly installed on the outer wall of the push tube 903, and a corresponding moving groove is opened on the inner wall of the outer cover tube 902 to provide movement for the protrusion 906. The protrusion 906 is embedded in the groove to form a limiting fit, thereby constraining the movement direction of the push tube 903, ensuring that it smoothly pushes the sealing ring 904 along the axial direction, avoiding displacement that could lead to sealing failure, and enhancing the stability of the structure operation.

[0045] Please see Figure 1 , Figure 2 The gas collection assembly 10 consists of a drive motor 101, a rotating shaft 102, and a gas collection fan blade 103. The drive motor 101 is fixedly installed on the top surface of the tower body 1. The top end of the rotating shaft 102 is fixedly connected to the output end of the drive motor 101. The bottom end of the rotating shaft 102 passes through the tower body 1 and is fixedly connected to the gas collection fan blade 103.

[0046] It should be noted that a limit plate 104 is fixedly connected to the bottom surface of the rotating shaft 102 to prevent the gas collecting fan blade 103 from slipping during rotation, ensuring the stability and safety of the component operation, and ensuring the continuous and reliable gas collecting function. The rotating shaft 102 and the gas collecting fan blade 103 are rotated by the drive motor 101 to form a directional airflow, which accelerates the discharge of the treated gas in the tower body 1, improves the gas flow efficiency, and avoids the gas stagnation in the tower body 1 from affecting the treatment effect.

[0047] The working principle of this utility model is as follows:

[0048] When this utility model is used, firstly, chlorine-hydrogen gas enters the interior of the packing layer 6 through the inlet pipe 2, and a sealing component 9 is set at the connection between the inlet pipe 2 and the gas delivery pipe to prevent leakage of chlorine-hydrogen gas. The push pipe 903 is driven by the thrust spring 905 in the outer cover pipe 902, so that the sealing ring 904 continuously and tightly fits the port of the gas delivery pipe. The elastic self-compensation characteristic is used to maintain the seal and prevent chlorine-hydrogen gas leakage.

[0049] Meanwhile, the cooling medium is delivered to the spray assembly 8 via the injection pipe 7 through the water inlet pipe 11. After the cooling medium enters the rotating sleeve 801, the flowing medium drives the drive blade 806 to rotate, which in turn causes the rotating rod 805 to drive the rotating sleeve 801 to rotate. The diversion pipe 802 on the outer wall of the rotating sleeve 801 also rotates. Combined with the cooling medium entering the spray pipe 803, under the guidance of the spiral plate 813, the rotating blade 811 rotates, causing the rotating shaft 810 to drive the mist plate 812 and the rotating nozzle 804 to rotate. Under the action of dual rotation, the spray range of the rotating nozzle 804 is effectively expanded, ensuring that the cooling medium accurately covers the entire cross section of the packing layer 6 after being sprayed out by the rotating nozzle 804, and fully contacts and mixes with the chlorine and hydrogen gas, improving the gas-liquid exchange efficiency, enhancing the cooling effect, and reducing the risk of gas corrosion to the equipment.

[0050] Finally, after the gas and liquid have fully contacted each other in the packing layer 6, the treated gas moves upward, and the gas collecting component 10 at the top of the inner liner 4 starts to work. The drive motor 101 drives the rotating shaft 102 and the gas collecting fan blades 103 to rotate, forming a directional airflow. This accelerates the treated gas to be discharged through the gas outlet pipe 3, preventing the gas from stagnating in the tower body 1. The condensate is also discharged in time through the water outlet pipe 12 to prevent the chlorine and hydrogen gas from reacting with water to form acid and accumulate, further preventing equipment corrosion.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A chlorine-hydrogen treatment device with corrosion resistance, comprising a tower body (1), characterized in that, An air inlet pipe (2) is fixedly connected to the outer wall of the tower body (1), an air outlet pipe (3) is fixedly connected to the top of the tower body (1), an inner liner (4) is fixedly installed in the inner cavity of the tower body (1) to prevent the tower body (1) from being corroded, two breathable baffles (5) are fixedly installed in the inner cavity of the inner liner (4), and a packing layer (6) is fixedly installed between the two breathable baffles (5) to increase the gas-liquid contact area; The inner liner (4) is fixedly installed with a liquid injection pipe (7) for conveying cooling medium. The top of the ventilated baffle (5) is installed with a spray assembly (8) for ensuring full mixing of gas and liquid. The top of the liquid injection pipe (7) passes through the ventilated baffle (5) and the filler layer (6) in sequence and is fixedly connected with the spray assembly (8). The cooling medium is conveyed to the spray assembly (8) through the liquid injection pipe (7). One end of the air inlet pipe (2) is connected to the packing layer (6), and the outer wall of the other end of the air inlet pipe (2) is fixedly fitted with a sealing component (9) for self-compensating corrosion. The top of the inner liner (4) is fixedly installed with a gas collection component (10) for guiding the treated gas out.

2. The chlorine-hydrogen treatment device with anti-corrosion function according to claim 1, characterized in that, The spray assembly (8) includes a rotating sleeve (801), which is rotatably mounted on the top end of the injection pipe (7) via a bearing. A diversion pipe (802) is fixedly connected to the outer wall of the rotating sleeve (801), and multiple spray pipes (803) are fixedly installed on the bottom surface of the diversion pipe (802). A rotating nozzle (804) for expanding the spray range is rotatably mounted on the bottom end of each spray pipe (803).

3. A chlorine-hydrogen treatment device with anti-corrosion function according to claim 2, characterized in that, The inner cavity of the rotating sleeve (801) is rotatably mounted with a rotating rod (805) via a bearing, which is used to drive the diverter pipe (802) to rotate, so as to further expand the spray range of the rotating nozzle (804). The outer wall of the rotating rod (805) is fixedly fitted with a drive blade (806) for providing rotational power.

4. A chlorine-hydrogen treatment device with anti-corrosion function according to claim 2, characterized in that, The spray assembly (8) also includes a connecting frame (809), which is fixedly located on the inner wall of the spray pipe (803). The bottom end of the connecting frame (809) is ball-hinged with a rotating shaft (810), and the outer wall of the rotating shaft (810) is fixedly fitted with a rotating blade (811) for providing rotational power to the rotating nozzle (804).

5. A chlorine-hydrogen treatment device with anti-corrosion function according to claim 1, characterized in that, The sealing assembly (9) includes a fixed tube (901), which is fixedly sleeved on the outer wall of the air inlet pipe (2). An outer cover tube (902) is fixedly sleeved on the outer wall of the fixed tube (901). A push tube (903) is slidably connected to the inner cavity of the outer cover tube (902). A sealing ring (904) for preventing gas leakage is fixedly installed in the inner cavity of the push tube (903).

6. A chlorine-hydrogen treatment device with anti-corrosion function according to claim 1, characterized in that, The gas collection assembly (10) consists of a drive motor (101), a rotating shaft (102), and a gas collection fan blade (103). The drive motor (101) is fixedly installed on the top surface of the tower body (1). The top end of the rotating shaft (102) is fixedly connected to the output end of the drive motor (101). The bottom end of the rotating shaft (102) passes through the tower body (1) and is fixedly connected to the gas collection fan blade (103).

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