Odor purification device with waterproof function

Abstract

The peculiar smell purification device with the waterproof function comprises a shell, an intelligent switch and a ballast are arranged at the top of the shell, an air inlet and an air outlet are formed in the two ends of the shell respectively, and a filter screen, a first photocatalytic plate, an ultraviolet lamp, a second photocatalytic plate and a draught fan are sequentially arranged in the shell in the air direction; a layer of titanium dioxide photocatalyst is arranged on the surfaces of the first photocatalytic plate and the second photocatalytic plate; when the intelligent switch is turned on, the fan rotates, air enters from the air inlet, is filtered by the filter screen and flows out from the air outlet under drainage of the fan after making contact with the first photocatalytic plate and the second photocatalytic plate for reaction, and super-hydrophobic nets are arranged at the air inlet and the air outlet and used for preventing water vapor from entering the shell. The efficient peculiar smell purification device not only has a waterproof function, but also can remove peculiar smell more efficiently.

Description

Technical Field

[0001] The invention belongs to the field of odor elimination, and in particular relates to an odor purification device with a waterproof function. Background Art

[0002] With the acceleration of industrialization and the continuous improvement of urbanization, air quality has become one of the major environmental issues of global concern. Air pollution not only comes from fixed and mobile pollution sources such as industrial emissions and automobile exhaust, but also includes harmful gases such as formaldehyde and benzene released by indoor decoration materials, as well as microbial pollution such as mold and bacteria that grow in humid environments. These pollutants pose a serious threat to human health, including respiratory diseases, allergic reactions, cardiovascular diseases and even long-term cancer risks.

[0003] While dealing with outdoor air pollution, people gradually realize that indoor air quality is equally important, so the air purifier market has grown rapidly. However, traditional air purifiers mainly focus on removing particulate matter, harmful gases and some microorganisms in the air, and pay less attention to indoor moisture problems caused by water leakage, high humidity or geographical location and the mold growth caused by it. Humid environments not only promote mold growth, but may also affect the efficiency and life of the air purifier's filter, and even cause internal circuit short circuits, reducing the safety of the equipment.

[0004] In view of the above background, the research and development of waterproof air purifiers is particularly important. Therefore, it is particularly important to explore and develop a new type of air purifier that integrates high-efficiency air purification and excellent waterproof performance. Summary of the invention

[0005] The purpose of the present invention is to disclose an odor purification device with a waterproof function, which is used to purify the air while preventing water vapor from entering the interior of the purification device, thereby improving the filtering efficiency of the filter, the photocatalytic degradation efficiency and extending the service life of the purification device.

[0006] To achieve the above object, the present invention provides the following technical solutions: A waterproof odor purification device comprises a shell, an intelligent switch and a ballast are arranged on the top of the shell, an air inlet and an air outlet are arranged at both ends of the shell, and a filter, a first photocatalytic plate, an ultraviolet lamp, a second photocatalytic plate and a fan are arranged in sequence inside the shell along the wind direction; a layer of titanium dioxide photocatalyst is arranged on the surface of the first and second photocatalytic plates; When the intelligent switch is turned on, the fan rotates, air enters from the air inlet, is filtered by the filter, and reacts with the first and second photocatalytic plates respectively, and then flows out from the air outlet under the guidance of the fan. The filter, the first and second photocatalytic plates, and the ultraviolet lamp are integrated into an independent unit, which is convenient for the air to fully contact the first and second photocatalytic plates after entering, so as to remove odor. Super hydrophobic nets are provided at the air inlet and the air outlet to prevent water vapor from entering the interior of the shell.

[0007] As a further improvement of the present invention, the super-hydrophobic mesh comprises a metal mesh and a super-hydrophobic coating coated on the metal mesh.

[0008] As a further improvement of the present invention, the metal mesh is selected to be 80-100 meshes.

[0009] As a further improvement of the present invention, the super hydrophobic coating is made by the following steps: (1) Pretreatment: The metal mesh is first ultrasonically cleaned for 5-10 minutes, and then soaked in acetic acid solution for 3-5 minutes to remove rust stains on the surface of the metal mesh. After rinsing with clean water, it is dried at 120°C for standby use. The content of acetic acid is 25wt.%-30wt.%; (2) 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.%; (3) Modification: The super-hydrophobic coating is coated on the metal mesh by the dip-coating method for several times, and then the super-hydrophobic mesh is obtained after drying at 150-200°C for 4-6 hours.

[0010] As a further improvement of the present invention, in step (2), the fluorine-free alkyl siloxane is isobutyl siloxane, octyl siloxane or propyl siloxane.

[0011] As a further improvement of the present invention, in step (2), the surfactant is fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester or polyoxyethylene alkylamine.

[0012] As a further improvement of the present invention, the speed of the immersion pulling method in step (3) is 300-500 mm / s, and the residence time is 90-110 s.

[0013] As a further improvement of the present invention, in step (2), the stirring speed is 1000-2000 rpm on a magnetic stirrer.

[0014] As a further improvement of the present invention, in step (3), the number of dipping times is 1, 2, and 3 times respectively.

[0015] 10. The odor purification device with waterproof function according to claim 2, characterized in that a super hydrophobic coating is provided on the outer surface of the filter screen and the shell.

[0016] Optionally, the super hydrophobic coating has a static contact angle of ≥150° and a rolling angle of ≤10°. Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses an odor purification device with a waterproof function. Super-hydrophobic nets are arranged at air outlets at both ends of the purification device to block water vapor from entering the interior of the purification device. On the one hand, the interception efficiency of the filter net and the photocatalytic degradation efficiency of the purification device are improved. On the other hand, the contact between electrical components and water vapor is avoided, thereby extending the service life of the purification device.

[0017] In the present invention, the filter, the first and second photocatalytic plates and the ultraviolet lamp are integrated into an independent unit, which makes it more convenient to replace the ultraviolet lamp and clean the filter. In addition, the photocatalytic plate is provided to increase the effective area of ​​photocatalysis, making the catalytic degradation effect stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of an odor removal device with waterproof function according to the present invention; Figure 2 This is a diagram of the internal structure of a waterproof odor removal device according to the present invention (1); Figure 3 This is a diagram of the internal structure of an odor removal device with waterproof function according to the present invention (2); Figure 4 This is a diagram of the internal structure of an odor removal device with waterproof function according to the present invention (3); Figure 5 A three-dimensional diagram of a waterproof odor removal device according to the present invention (2); Figure 6 A microscopic image of a super-hydrophobic net in an odor removal device with waterproof function according to the present invention; Figure 7 This is a contact angle measurement diagram of a super-hydrophobic coating in an odor removal device with waterproof function according to the present invention; Figure 8 This is a measurement diagram of the rolling angle of a super-hydrophobic coating in an odor removal device with waterproof function according to the present invention; In the figure: 1. housing, 2. air inlet, 3. air outlet, 4. fan, 5. filter, 6. ultraviolet lamp, 7. first photocatalytic plate, 8. second photocatalytic plate, 9. intelligent switch, 10. ballast. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1-5 As shown, the present invention proposes a high-efficiency odor purification device with waterproof function, which includes a device housing 1, an air inlet 2, an air outlet 3, a pair of ultraviolet lamps 6, a first photocatalytic plate 7, a second photocatalytic plate 8, a filter 5, a fan 4, a ballast 10, and an intelligent switch 9, wherein the above components (including the housing 1) can be disassembled and replaced and cleaned separately, and a super-hydrophobic net is provided at the air inlet 2 and the air outlet 3. The high-efficiency odor purification device is induced by the ventilation fan 4 in the housing 1, and the air flow with odor enters through the inlet of the housing 1, and solid impurities are filtered through the filter 5. The gas then passes through the first and second photocatalytic plates 8, and is irradiated by the ultraviolet lamp 6. The first and second photocatalytic plates 8 have photocatalysts, thereby performing a photocatalytic reaction to achieve odor removal. The airflow after odor removal is then led out through the fan 4. The use of this high-efficiency odor purification device can remove odor more efficiently.

[0021] Specifically, a waterproof odor purification device includes a shell 1, the shell 1 is made of aluminum alloy plate or magnesium alloy plate, an intelligent switch 9 and a ballast 10 are arranged on the top of the shell 1, an air inlet 2 and an air outlet 3 are arranged at both ends of the shell 1, and a filter 5, a first photocatalytic plate 7, an ultraviolet lamp 6, a second photocatalytic plate 8 and a fan 4 are arranged in sequence inside the shell 1 along the wind direction; a layer of titanium dioxide photocatalyst is arranged on the surface of the first and second photocatalytic plates 8; When the intelligent switch 9 is turned on, the fan 4 rotates, and air enters from the air inlet 2. After being filtered by the filter 5, the air contacts and reacts with the first and second photocatalytic plates 8 respectively, and then flows out from the air outlet 3 under the guidance of the fan 4. It is characterized in that the filter 5, the first and second photocatalytic plates 8, and the ultraviolet lamp 6 are integrated into an independent unit, which is convenient for the air to fully contact with the first and second photocatalytic plates 8 after entering, so as to remove odor. Super hydrophobic nets are provided at the air inlet 2 and the air outlet 3 to prevent water vapor from entering the interior of the shell 1.

[0022] The filter 5, the first and second photocatalytic plates 8, and the ultraviolet lamp 6 are integrated into an independent unit, wherein a gap is left between the second photocatalytic plate 8 and the side wall of the housing 1 to facilitate air passage, and the unit can be removed from the device as a separate device, making it more convenient to replace the ultraviolet lamp 6 and clean the filter 5. In addition, the effective contact area of ​​the air with the first and second photocatalytic plates 8 is increased in the independent unit, and the contact time is increased, so that the photocatalytic degradation effect is stronger.

[0023] The super-hydrophobic mesh comprises a metal mesh and a super-hydrophobic coating coated on the metal mesh. The metal mesh is selected to have a mesh size of 80-100, preferably a copper mesh.

[0024] Furthermore, the filter screen 5 and the outer surface of the housing 1 are also provided with a super hydrophobic coating to prevent water vapor from corroding the odor removal device.

[0025] The super hydrophobic coating is made by the following steps: (1) Pretreatment: The metal mesh is first ultrasonically cleaned for 5-10 minutes, and then soaked in acetic acid solution for 3-5 minutes to remove rust stains on the surface of the metal mesh. After rinsing with clean water, it is dried at 120°C for standby use. The content of acetic acid is 25wt.%-30wt.%; (2) 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 fluorine-free alkyl siloxane is isobutyl siloxane, octyl siloxane or propyl siloxane; The surfactant is fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester or polyoxyethylene alkylamine.

[0026] The stirring speed is 1000-2000 rpm on a magnetic stirrer.

[0027] (3) Modification: The super-hydrophobic coating is coated on the metal mesh by the dip-coating method for several times, and then the super-hydrophobic mesh is obtained after drying at 150-200°C for 4-6 hours.

[0028] The speed of the immersion pulling method is 300-500 mm / s, the residence time is 90-110s, and the number of immersion coating is 1, 2, and 3 times respectively.

[0029] like Figure 6 As shown, Figure 6This is a microscopic picture of the superhydrophobic mesh. The water contact angle on the superhydrophobic mesh is 160°, which has the effect of blocking water vapor.

[0030] like Figure 7 , 8 As shown, they are the static contact angle and rolling angle of the super-hydrophobic coating, respectively. The substrate is an aluminum alloy plate. The static contact angle of the super-hydrophobic coating is >150° and the rolling angle of the super-hydrophobic coating is <10°.

[0031] The preparation method of the super-hydrophobic coating of the filter 5 is the same as that of the super-hydrophobic net. After the filter 5 is super-hydrophobicly modified, it further prevents water vapor from entering the interior of the shell 1, thereby preventing water vapor from damaging the internal structure of the shell 1.

[0032] The method for preparing the super hydrophobic coating on the surface of the housing 1 is as follows: The non-woven fabric with ethanol and deionized water was used to clean the outer surface of the shell 1 in turn and then dried with nitrogen. Then, the super-hydrophobic coating was sprayed on the surface of the shell 1 using an air spray gun, and the super-hydrophobic shell 1 was obtained after drying at 50 degrees Celsius for 2 hours.

[0033] The waterproof function not only means that the device can resist water intrusion to a certain extent, keep the interior dry, and reduce mold growth, but also broaden the application scenarios of air purifiers, such as bathrooms, basements, laundry rooms and other humid environments, to meet the air purification needs in specific scenarios. In addition, combined with advanced technologies such as filtration technology, ultraviolet sterilization, and photocatalytic degradation, waterproof air purifiers aim to provide a more comprehensive and efficient air purification solution, which not only solves chemical and physical pollution in the air, but also effectively controls and prevents biological pollution, creating a healthier and more comfortable environment for users.

[0034] 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 waterproof odor purification device, comprising a housing, an intelligent switch and a ballast are arranged on the top of the housing, an air inlet and an air outlet are arranged at both ends of the housing, a filter, a first photocatalytic plate, an ultraviolet lamp, a second photocatalytic plate and a fan are arranged in sequence inside the housing along the wind direction; a layer of titanium dioxide photocatalyst is arranged on the surface of the first and second photocatalytic plates; When the intelligent switch is turned on, the fan rotates, air enters from the air inlet, is filtered by the filter, and reacts with the first and second photocatalytic plates respectively, and then flows out from the air outlet under the guidance of the fan, which is characterized in that: The filter, the first and second photocatalytic plates, and the ultraviolet lamp are integrated into an independent unit, so that the air can fully contact the first and second photocatalytic plates after entering, and is used to remove odor. Super hydrophobic nets are provided at the air inlet and the air outlet to prevent water vapor from entering the shell; The super-hydrophobic mesh comprises a metal mesh and a super-hydrophobic coating coated on the metal mesh; The super hydrophobic coating is made by the following steps: (1) Pretreatment: The metal mesh is first ultrasonically cleaned for 5-10 minutes, and then soaked in acetic acid solution for 3-5 minutes to remove rust stains on the surface of the metal mesh. After rinsing with clean water, it is dried at 120°C for standby use. The content of acetic acid is 25wt.%-30wt.%; (2) 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.%; (3) Modification: The super-hydrophobic coating is coated on the metal mesh by the dip-coating method for several times, and then the super-hydrophobic mesh is obtained after drying at 150-200°C for 4-6 hours.

2. The odor purification device with waterproof function according to claim 1, characterized in that: The metal mesh is 80-100 meshes.

3. The odor purification device with waterproof function according to claim 1, characterized in that: In step (2), the fluorine-free alkyl siloxane is isobutyl siloxane, octyl siloxane or propyl siloxane.

4. The odor purification device with waterproof function according to claim 1, characterized in that: In step (2), the surfactant is fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester or polyoxyethylene alkylamine.

5. The odor purification device with waterproof function according to claim 1, characterized in that In step (3), the speed of the immersion pulling method is 300-500 mm / s, and the residence time is 90-110s.

6. The odor purification device with waterproof function according to claim 1, characterized in that In step (2), the stirring speed is 1000-2000 rmp on a magnetic stirrer.

7. The odor purification device with waterproof function according to claim 1, characterized in that ,In step (3), the number of dipping times is 1, 2, and 3 times respectively.

8. The odor purification device with waterproof function according to claim 1, characterized in that: The filter screen and the outer surface of the shell are provided with a super hydrophobic coating.

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