Evaporated water recovery device of circulating water cooling tower

Abstract

The invention discloses a circulating water cooling tower evaporation water recovery device which comprises a box body formed by connecting four sealing side plates in a surrounding mode, a dust shielding net is arranged at the top of the box body, a fixing frame is arranged at the bottom of the box body, a water collecting assembly is arranged in the box body, and the water collecting assembly comprises two water collecting plates connected in an inverted-V shape. The bottom ends of the two water collecting plates are connected to the fixing frame, when water mist ascends and encounters the water collecting plates, the water mist adheres and gathers to form liquid drops, the liquid drops fall back into the cooling tower, and recycling of evaporated water is achieved. The evaporated water recovery device has the characteristics of good water mist removal effect, stable working performance and long service life, and the evaporated water recovery efficiency reaches up to 35-45%.

Description

Technical Field

[0001] The invention belongs to the technical field of cooling tower demisting, and specifically discloses an evaporative water recovery device for a circulating water cooling tower. Background Art

[0002] A demister is a commonly used demisting and dewatering equipment for cooling water towers. Its main function is to capture fog particles and water droplets in evaporated water vapor. However, in actual production and application, it is found that the demisting and dewatering efficiency of existing demisters needs to be improved, and there are still some fog particles and water droplets in the air leaving the tower. In addition, the humidity of the steam discharged from the water tower after passing through the demister is relatively high and tends to be saturated, which will form white fog at the outlet of the water tower. This phenomenon is particularly obvious in the cold winter, which can easily cause damage to the surrounding power facilities and equipment, and it is easy to cause ice on the surface of the surrounding roads and water tower stairs in winter.

[0003] The following are the contents and proportions of water loss in cooling towers: Evaporation water loss: refers to the amount of water discharged into the atmosphere during the heat exchange between the circulating water and the air in the tower for air humidification. This part of water loss is the largest water consumption indicator of the power plant, accounting for about 40% of the total water consumption of the plant and 1%-2% of the circulating water.

[0004] Wind-blown water loss: refers to the loss of dripping water that is collected outside the tower due to air flow during the distribution process of circulating water in the tower. It accounts for about 0.5% of the circulating water volume. When a mechanical water remover is installed, it accounts for about 0.1% of the circulating water volume.

[0005] Wastewater loss: It accounts for about 11% of the total water consumption of the plant. Most of the plant can use it for reuse, and can provide water for desulfurization towers or other parts, such as landscaping, cleaning, etc.

[0006] The existing cooling tower water loss recovery uses a mechanical flat-plate dehumidifier, which is placed in the cross section of the uniformly distributed layer in the tower. It can only recover about 90% of the wind-blown water loss, and is unable to recover the evaporation water loss that accounts for 40% of the total water loss in the plant.

[0007] In view of this, it is necessary to improve the existing technology to solve the problems existing in the existing technology. Summary of the invention

[0008] The purpose of the present invention is to disclose an evaporative water recovery device for a circulating water cooling tower, so as to solve the problems existing in the background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions: A circulating water cooling tower evaporated water recovery device comprises a box body formed by four sealed side panels, a dust shield is arranged on the top of the box body, a fixed frame is arranged on the bottom, a water collecting assembly is arranged inside the box body, the water collecting assembly comprises two water collecting plates connected in an inverted "V" shape, the bottom ends of the two water collecting plates are respectively connected to the fixed frames, when the water mist rises and encounters the water collecting plates, the water mist adheres and gathers to form droplets, and falls back into the cooling tower, thereby realizing the recovery and utilization of evaporated water.

[0010] As a further improvement of the present invention, the two water receiving plates have the same size and the bottom has the same width as the sealing side plate, and each water receiving plate comprises: Bottom frame; Two connecting plates are arranged obliquely and parallelly at the two ends of the bottom frame, and both connecting plates are provided with connecting holes; The three-dimensional nano-ceramic foam metal plate is placed in a bottom frame, and comprises a porous foam metal plate and a glaze coated on the porous foam metal plate. The porosity of the porous foam metal plate is any one of foam copper, foam iron, foam nickel or foam iron-nickel. The glaze comprises the following components (all in mass percentage): SiO2: 28%-33%, Al2O3: 4%-5%, Na2O: 12%-15%, K2O: 3%-5%, B2O3: 15%-18%, CaO: 6%-8%, ZnO: 2%-3%, NaBF4: 3%-5%, SrO: 2%-3%, Li2O: 1%-2%, BaO: 2%-3%, CoO+NiO+CuO: 3%-5%, and the above components are all in powder form.

[0011] During the rising process, the water mist mainly encounters the three-dimensional nano-ceramic foam metal plate, where it adheres and gathers to form droplets and falls back into the cooling tower, realizing the recycling of evaporated water.

[0012] The three-dimensional nano ceramic foam metal plate disclosed in the present invention can not only be used in the evaporative water recovery device, but also can be applied to other water vapor separation and collection devices.

[0013] As a further improvement of the present invention, one ends of the two water collecting plates are connected to each other through a connecting plate, and the other ends are respectively connected to two oppositely arranged sealing side plates through the connecting plates. The angle between the two connected water collecting plates is 90°.

[0014] As a further improvement of the present invention, the method for preparing the three-dimensional nano-ceramic foam metal plate comprises the following steps: Step 1: Weigh various glaze components in proportion, mix them evenly, then add the glaze into water and stir evenly to form glaze slurry; Step 2: Apply glaze slurry for the first time, immerse the porous foam metal plate completely in the glaze slurry, so that the porous foam metal wire diameter is evenly covered with the glaze slurry; Step 3: First drying: drying the porous foam metal plate with glaze slurry at a temperature of 90-100°C for 5-15 minutes; Step 4: Apply glaze slurry for the second time, immerse the porous foam metal plate dried for the first time in step 3 into the glaze slurry again, so that the porous foam metal wire diameter is evenly covered with glaze slurry; Step 5: Second drying: drying the porous foam metal plate coated with glaze slurry in step 4 again, the drying temperature is 95-105°C, and the drying time is 1-1.5h; Step 6: Sintering, sintering the porous foam metal plate dried for the second time in step 5, the sintering temperature is 950-1100° C., and the sintering time is 5-10 minutes; Step 7: Cooling: Cool the porous foam metal plate sintered in step 6 at room temperature to obtain a three-dimensional nano-ceramic foam metal plate.

[0015] As a further improvement of the present invention, each three-dimensional nano ceramic foam metal plate has a density of 0.15-2 g / cm³ and a specific surface area of ​​7.8×10 2 -1.5×10 8 m 2 / m 3 , thickness is 5-80mm, and the number of holes per inch (PPI) is 10-130.

[0016] As a further improvement of the present invention, a super hydrophobic coating is provided on the surface of the three-dimensional nano ceramic foam metal plate.

[0017] As a further improvement of the present invention, the method for preparing a super hydrophobic coating comprises the following steps: (1) Preparation of super hydrophobic coating: 15-20 parts of deionized water, 0.1-0.3 parts of surfactant, 1-1.5 parts of ammonia water are taken, stirred evenly, and then 3-5 parts of hydrophilic silica are added, and stirring is continued for 30-60 minutes. After heating to 60-70°C, 1-5 parts of modifier are added, and stirring is continued for 6-8 hours; the hydrophilic silica is prepared by drying silica sol with a particle diameter of 4-10 nm, and the modifier is a fluorine-free alkyl siloxane with a carbon chain length greater than 3, and the content in the modified solution is 1wt.%-10wt.%; (2) Modification: Spray the super-hydrophobic coating onto the three-dimensional nano-ceramic foam metal plate using a spray gun, and then dry it at 150-200°C for 2 hours.

[0018] As a further improvement of the present invention, in step (1), the fluorine-free alkyl siloxane is isobutyl siloxane, octyl siloxane or propyl siloxane.

[0019] As a further improvement of the present invention, in step (1), the surfactant is fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester or polyoxyethylene alkylamine.

[0020] Experiments in areas with an ambient temperature of 45°C, a humidity of 19.8% RH, and a dew point temperature of 13.7°C show that the evaporative water recovery device of the present invention and the cooling tower using the evaporative water recovery device of the present invention have good demisting effect, an evaporative water recovery efficiency of up to 35-45%, stable working performance, corrosion resistance, aging resistance, cold resistance, high temperature resistance, bending resistance, light weight, low operating cost, energy saving and environmental protection, and long service life.

[0021] Compared with the prior art, the present invention has the following beneficial effects: The invention discloses an evaporative water recovery device for a circulating water cooling tower. The recovery device is sealed on all sides to prevent the side leakage of water mist airflow, thereby ensuring that the airflow channel rises in a straight line. An inverted "V"-shaped water collecting plate is arranged inside the recovery device, wherein the water collecting plate contains a three-dimensional nano-ceramic foam metal plate. The three-dimensional nano-ceramic foam metal plate is a three-dimensional structure of nano-ceramic and metal, and its water condensation property is better than that of a metal mesh or a metal mesh compression body, and its permeability is better than that of a metal wire mesh. An inverted "V"-shaped installation method is adopted, which not only increases the exhaust cross-sectional area and perfectly matches the high wind speed of 3m / s-9m / s of a mechanical cooling water tower, but also increases the contact area with the water mist, and can fully intercept the water mist, so that the water mist adheres to the three-dimensional nano-ceramic foam metal plate to form cold condensed integrated droplets, and then falls back into the cooling tower, thereby preventing the harm caused by the water mist flowing out of the cooling tower and realizing the recycling of the water mist.

[0022] The specific surface area of ​​the three-dimensional nano-ceramic foam metal plate in the present invention is 2500-3000 times that of the ordinary flat-plate dehumidifier, which greatly increases the contact between cold air and water vapor. On the one hand, the air permeability is better, and on the other hand, the heat exchange capacity can be further increased, and the fine mist particles and water droplets in the saturated water vapor can be effectively intercepted. When the evaporative water recovery device provided by the present invention is used, the residual droplet content at the water tower outlet is: ≤3mg / Nm³ (dry basis), and the residual droplet particle size at the water tower outlet is: 0.

[0023] In the present invention, a layer of super-hydrophobic material is coated on the surface of the three-dimensional nano-ceramic foam metal plate, which further blocks the water mist and further improves the recovery rate of evaporated water. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the internal structure of the cooling tower in the present invention; Figure 2 A top view of the arrangement array of the water collecting components in the cooling tower of the present invention; Figure 3 It is a structural schematic diagram of the water collecting component in the present invention; Figure 4 It is a structural schematic diagram of the water collecting plate in the present invention.

[0025] In the figure: 1. fan; 2. motor; 3. reducer; Water collector; 4.1, water collecting plate; 4.1.1, connecting plate; 4.1.2, bottom frame; 4.1.3, three-dimensional nano ceramic foam metal plate; 4.1.4, connecting hole; 4.2, sealing side plate; 4.3, fixing frame; Supporting columns; 6. Dust shield; 7. Supporting beams; 8. Water distribution system; 9. Cooling tower body. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0027] like Figure 1-4 As shown, the cooling tower includes a fan 1, a motor 2, a reducer 3, a water collector 4, a support column 5, a dust screen 6, a cooling tower body 9, a support beam 7, and a water distribution system 8; The present invention discloses an evaporative water recovery device for a circulating water cooling tower, comprising a box body formed by enclosing and connecting four sealing side plates 4.2, a fixing frame 4.3 being arranged at the bottom, and a water collecting component being arranged inside the box body, wherein the water collecting component comprises two water collecting plates 4.1 connected in an inverted "V" shape, the bottom ends of the two water collecting plates 4.1 being respectively connected to the fixing frame 4.3, when water mist rises and encounters the water collecting plates 4.1, the water mist adheres and gathers to form droplets, and falls back into the cooling tower, thereby realizing the recycling of evaporated water.

[0028] A dust shielding net 6 is also provided on the top of the box body to prevent debris and dust from entering the evaporated water recovery device and affecting the operating efficiency of the evaporated water recovery device.

[0029] The integrated evaporative water recovery devices are placed on the water tower support beams 7 arranged vertically and horizontally at the corresponding positions. An array consisting of several vertically and horizontally arranged evaporative water recovery devices covers the top of the water tower support beams 7 in the horizontal direction, forming an integrated water collection layer in the cooling tower.

[0030] The two water collecting plates 4.1 have the same size and the same width as the sealing side plates 4.2 at the bottom. The water collecting plates 4.1 include: The bottom frame 4.1.2 is arranged in a square shape; Two connecting plates 4.1.1 are respectively arranged in parallel at the two ends of the bottom frame 4.1.2, and connecting holes 4.1.4 are arranged on the connecting plates 4.1.1; The three-dimensional nano-ceramic foam metal plate 4.1.3 is placed in the bottom frame 4.1.2, comprising a porous foam metal plate and a glaze coated on the porous foam metal plate. The porosity of the porous foam metal plate is any one of foam copper, foam iron, foam nickel or foam iron-nickel. The glaze comprises the following components (all in mass percentage): SiO2: 28%-33%, Al2O3: 4%-5%, Na2O: 12%-15%, K2O: 3%-5%, B2O3: 15%-18%, CaO: 6%-8%, ZnO: 2%-3%, NaBF4: 3%-5%, SrO: 2%-3%, Li2O: 1%-2%, BaO: 2%-3%, CoO+NiO+CuO: 3%-5%, and the above components are all in powder form.

[0031] Furthermore, the three-dimensional nano ceramic foam metal plate 4.1.3 is composed of a composite of 40% ceramic, 20% nickel, 10% stainless steel, 5% iron and 5% nano water-absorbing material in weight ratios respectively.

[0032] One ends of the two water collecting plates 4.1 are connected to each other through a connecting plate 4.1.1, and the other ends are connected to two oppositely arranged sealing side plates 4.2 through the connecting plate 4.1.1, and the angle between the two connected water collecting plates 4.1 is 90 degrees.

[0033] The connecting plate 4.1.1, the fixing frame 4.3 and the bottom frame 4.1.2 are preferably made of stainless steel.

[0034] The connection plate 4.1.1 and the fixing frame 4.3 are fixed by welding to increase stability and integrity. The water collecting plate 4.1 is connected and fixed to the sealing side plates 4.2 on both sides by bolts through the connection plate 4.1.1.

[0035] The preparation method of the three-dimensional nano ceramic foam metal plate 4.1.3 comprises the following steps: Step 1: Weigh various glaze components in proportion, mix them evenly, then add the glaze into water and stir evenly to form glaze slurry; Step 2: Apply glaze slurry for the first time, immerse the porous foam metal plate completely in the glaze slurry, so that the porous foam metal wire diameter is evenly covered with the glaze slurry; Step 3: First drying: drying the porous foam metal plate with glaze slurry at a temperature of 90-100°C for 5-15 minutes; Step 4: Apply glaze slurry for the second time, immerse the porous foam metal plate dried for the first time in step 3 into the glaze slurry again, so that the porous foam metal wire diameter is evenly covered with glaze slurry; Step 5: Second drying: drying the porous foam metal plate coated with glaze slurry in step 4 again, the drying temperature is 95-105°C, and the drying time is 1-1.5h; Step 6: Sintering, sintering the porous foam metal plate dried for the second time in step 5, the sintering temperature is 950-1100° C., and the sintering time is 5-10 minutes; Step 7: Cooling: Cool the porous foam metal plate sintered in step 6 at room temperature to obtain a three-dimensional nano-ceramic foam metal plate.

[0036] Each three-dimensional nano-ceramic foam metal plate 4.1.3 has a density of 0.15-2 g / cm³ and a specific surface area of ​​7.8×10 2 -1.5×10 8 m 2 / m 3 , thickness is 5-80 mm, and the number of holes per inch (PPI) is 10-130.

[0037] The three-dimensional nano-ceramic foam metal plate 4.1.3 has excellent air permeability, adsorption and water condensation. The fine mist particles and water droplets are captured by the irregular mesh of the three-dimensional nano-ceramic foam metal plate 4.1.3. After repeated capture and adhesion, the tiny mist droplets adhere and gather to form droplets, and the water droplets form raindrops and produce rainfall, and finally the raindrops fall into the cooling tower. It ensures the timely recovery of the evaporated water in the cooling tower and eliminates the evaporated water vapor in the cooling tower. It realizes the complete replacement of the PVC material corrugated water eliminator and realizes more efficient recovery of evaporated water.

[0038] A super hydrophobic coating is provided on the surface of the three-dimensional nano ceramic foam metal plate 4.1.3 to further prevent water mist from overflowing the cooling tower. The preparation method of the super hydrophobic coating includes the following steps: (1) Preparation of super hydrophobic coating: 15-20 parts of deionized water, 0.1-0.3 parts of surfactant, 1-1.5 parts of ammonia water are taken, stirred evenly, and then 3-5 parts of hydrophilic silica are added, and stirring is continued for 30-60 minutes. After heating to 60-70°C, 1-5 parts of modifier are added, and stirring is continued for 6-8 hours; the hydrophilic silica is prepared by drying silica sol with a particle diameter of 4-10 nm, and the modifier is a fluorine-free alkyl siloxane with a carbon chain length greater than 3, and the content in the modified solution is 1wt.%-10wt.%; The non-fluorinated alkyl siloxane is isobutyl siloxane, octyl siloxane or propyl siloxane.

[0039] The surfactant is fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester or polyoxyethylene alkylamine.

[0040] (2) Modification: Spray the super-hydrophobic coating onto the three-dimensional nano-ceramic foam metal plate 4.1.3 using a spray gun, and then dry it at 150-200°C for 2 hours.

[0041] The water collection principle of the evaporation water recovery device of the present invention is as follows: Based on the idea that there is a "critical state" interval in the process of water phase transition between vapor and liquid, and drawing on the particle agglomeration principle of effective condensation of water vapor, the three-dimensional nano-ceramic foam metal plate 4.1.3 breaks through the limitations of the theoretical minimum water collection particle size, high mechanical tower flow rate and uneven natural tower flow rate of traditional devices. The three-dimensional nano-ceramic foam metal plate 4.1.3 adopts the three-dimensional ultra-microporous polymer structure of high-tech nano-ceramic foam metal materials, which increases the condensation contact area of ​​the "water vapor fog group", which is 2500 times the contact area of ​​the flat water retainer, making it easier to capture and generate more compact structural agglomerates due to the increase in system surface area and surface energy. At the same time, it also pays attention to wind resistance, does not increase the outlet resistance of the water tower, and the pressure drop of the airflow through the device is almost the same as that of the flat water retainer; after the airflow through the three-dimensional through-hole structure is cut, the speed is enhanced, the noise is reduced, the rising airflow speed is greatly improved, and the evaporated water recovery volume reaches the maximum value under non-energy-consuming means, effectively achieving the purpose of water collection and water saving.

[0042] When a large number of fine mist particles and water droplets entrained in the vapor phase pass through the three-dimensional nano-ceramic foam metal plate 4.1.3, due to its tiny pore size and porous structure, a three-dimensional surface energy is formed between the pores, which increases the local surface energy and makes it easy to capture fine mist particles and water droplets. When water covers the surface of the metal plate, the original "metal-air" interface is divided into a "metal-water" interface and a "water-air" interface. The potential barriers of the latter two interfaces are much lower than those of the former interface. In this way, after the metal surface is watered, the original high potential barrier is decomposed into two low potential barriers, which have extremely high cohesion, aggregation and permeability. Through the special super-hydrophobic modification design, the effect of rapid separation and recovery of evaporated water is achieved.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A circulating water cooling tower evaporation water recovery device, comprising a box body surrounded and connected by four sealed side panels, a dust shielding net is arranged on the top of the box body, a fixing frame is arranged on the bottom, and a water collecting component is arranged inside the box body, characterized in that: The water collecting assembly includes two water collecting plates connected in an inverted "V" shape, the bottom ends of the two water collecting plates are respectively connected to fixed frames, when the water mist rises and encounters the water collecting plates, the water mist adheres and gathers to form droplets, and falls back into the cooling tower, realizing the recycling of evaporated water.

2. A circulating water cooling tower evaporative water recovery device according to claim 1, characterized in that: The two water receiving plates are of the same size and have the same width at the bottom as the sealing side plate. Each water receiving plate includes: Bottom frame; Two connecting plates are arranged obliquely and parallelly at the two ends of the bottom frame, and both connecting plates are provided with connecting holes; The three-dimensional nano-ceramic foam metal plate is placed in a bottom frame, and comprises a porous foam metal plate and a glaze coated on the porous foam metal plate. The porosity of the porous foam metal plate is any one of foam copper, foam iron, foam nickel or foam iron-nickel. The glaze comprises the following components (all in mass percentage): SiO2: 28%-33%, Al2O3: 4%-5%, Na2O: 12%-15%, K2O: 3%-5%, B2O3: 15%-18%, CaO: 6%-8%, ZnO: 2%-3%, NaBF4: 3%-5%, SrO: 2%-3%, Li2O: 1%-2%, BaO: 2%-3%, CoO+NiO+CuO: 3%-5%, and the above components are all in powder form.

3. A circulating water cooling tower evaporation water recovery device according to claim 2, characterized in that: One ends of the two water receiving plates are connected to each other through a connecting plate, and the other ends are connected to two oppositely arranged sealing side plates through the connecting plates. The angle between the two connected water receiving plates is 90°.

4. A circulating water cooling tower evaporation water recovery device according to claim 2, characterized in that: The preparation method of the three-dimensional nano ceramic foam metal plate comprises the following steps: Step 1: Weigh various glaze components in proportion, mix them evenly, then add the glaze into water and stir evenly to form glaze slurry; Step 2: Apply glaze slurry for the first time, immerse the porous foam metal plate completely in the glaze slurry, so that the porous foam metal wire diameter is evenly covered with the glaze slurry; Step 3: First drying: drying the porous foam metal plate with glaze slurry at a temperature of 90-100°C for 5-15 minutes; Step 4: Apply glaze slurry for the second time, immerse the porous foam metal plate dried for the first time in step 3 into the glaze slurry again, so that the porous foam metal wire diameter is evenly covered with glaze slurry; Step 5: Second drying: drying the porous foam metal plate coated with glaze slurry in step 4 again, the drying temperature is 95-105°C, and the drying time is 1-1.5h; Step 6: Sintering, sintering the porous foam metal plate dried for the second time in step 5, the sintering temperature is 950-1100° C., and the sintering time is 5-10 minutes; Step 7: Cooling: Cool the porous foam metal plate sintered in step 6 at room temperature to obtain a three-dimensional nano-ceramic foam metal plate.

5. The evaporative water recovery device of a circulating water cooling tower according to claim 2, characterized in that: The density of each three-dimensional nano-ceramic foam metal plate is 0.15-2g / cm³ and the specific surface area is 7.8×10 2 -1.5×10 8 m 2 / m 3 , thickness is 5-80mm, and the number of holes per inch (PPI) is 10-130.

6. A circulating water cooling tower evaporative water recovery device according to claim 5, characterized in that: A super hydrophobic coating is arranged on the surface of the three-dimensional nano ceramic foam metal plate.

7. A circulating water cooling tower evaporative water recovery device according to claim 6, characterized in that: The method for preparing a super hydrophobic coating comprises the following steps: (1) Preparation of super hydrophobic coating: 15-20 parts of deionized water, 0.1-0.3 parts of surfactant, 1-1.5 parts of ammonia water are taken, stirred evenly, and then 3-5 parts of hydrophilic silica are added, and stirring is continued for 30-60 minutes. After heating to 60-70°C, 1-5 parts of modifier are added, and stirring is continued for 6-8 hours; the hydrophilic silica is prepared by drying silica sol with a particle diameter of 4-10 nm, and the modifier is a fluorine-free alkyl siloxane with a carbon chain length greater than 3, and the content in the modified solution is 1wt.%-10wt.%; (2) Modification: Spray the super-hydrophobic coating onto the three-dimensional nano-ceramic foam metal plate using a spray gun, and then dry it at 150-200°C for 2 hours.

8. The odor purification device with waterproof function according to claim 7, characterized in that: In step (1), the fluorine-free alkyl siloxane is isobutyl siloxane, octyl siloxane or propyl siloxane.

9. The odor purification device with waterproof function according to claim 7, characterized in that: In step (1), the surfactant is fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester or polyoxyethylene alkylamine.

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