Improved pre-filtering device for UV photocatalytic deodorizing equipment

Abstract

The utility model discloses an improved pre-filtering device for UV photocatalytic deodorizing equipment, which comprises a pre-filtering box, the top of the pre-filtering box is fixedly connected with an air inlet pipe, a primary filtering mechanism is arranged on the inner wall of the pre-filtering box close to the top, an advanced filtering mechanism is arranged on the pre-filtering box close to the bottom, and a secondary filtering mechanism is arranged on the inner wall of the pre-filtering box close to the bottom. And an access door is hinged to one side of the outer wall of the pre-filtering box. According to the utility model, the primary filtering mechanism, the advanced filtering mechanism and the pre-filtering box are mutually matched, and the independent pre-filtering box body is arranged outside the UV photocatalytic deodorizing equipment, so that waste gas can be subjected to multiple filtering before entering the equipment, pollutants entering the UV photocatalytic equipment are reduced, catalyst pollution and shielding of a UV lamp tube are prevented, and the service life of the UV photocatalytic deodorizing equipment is prolonged. The photocatalytic efficiency is improved. Meanwhile, most pollutants are effectively intercepted by the pre-filtering box, the cleaning and maintenance frequency of main equipment can be reduced, and the maintenance cost is reduced due to the filter material design easy to replace.

Description

Technical Field

[0001] This utility model relates to the technical field of UV photocatalytic deodorization equipment, specifically a pre-filtration device for an improved UV photocatalytic deodorization equipment. Background Technology

[0002] UV photocatalysis technology uses ultraviolet light to irradiate a catalyst (usually TiO2) to generate strong oxidizing substances (such as hydroxyl radicals ·OH) to decompose organic waste gas and odor molecules.

[0003] However, most existing UV photocatalytic deodorization equipment directly introduces waste gas into the equipment. Large dust particles directly enter the UV photocatalytic equipment, which can easily contaminate the catalyst and reduce catalytic efficiency over time. At the same time, dust can easily cover the UV lamp tube, reducing the ultraviolet light transmittance and affecting the photocatalytic effect. Furthermore, some oily or sticky particles may accumulate inside the equipment, making them difficult to clean and even causing safety hazards.

[0004] Therefore, we propose to design an improved pre-filtration device for UV photocatalytic deodorization equipment. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] An improved UV photocatalytic deodorization device includes a pre-filter box, an air inlet pipe fixedly connected to the top of the pre-filter box, a primary filter mechanism provided on the inner wall of the pre-filter box near the top, an advanced filter mechanism provided on the inner wall of the pre-filter box near the bottom, and an inspection door hinged to one side of the outer wall of the pre-filter box, with an observation window embedded and fixedly connected in the center of the inspection door.

[0008] The primary filtration mechanism includes a mounting frame fixed to the inner wall of the pre-filtration box. A metal filter frame is provided inside the mounting frame. A central filter is provided at the center of the metal filter frame. Coarse filter cotton is provided on both sides of the central filter. A fixing plate is fixedly connected to the outer end of the metal filter frame. Finger holes are provided on both sides of the surface of the fixing plate.

[0009] The advanced filtration mechanism includes limiting strips fixed to both sides of the inner wall of the pre-filtration box, a positioning frame is provided between the two limiting strips, pressure grooves are provided at both ends of the outer side of the positioning frame, meltblown cloth filter material is provided inside the positioning frame, and an air-gathering hood is fixedly connected to the inner wall of the pre-filtration box.

[0010] The bottom of the pre-filter box is fixedly connected to an air duct, and the main body of the UV photocatalytic deodorization device is installed on one side of the air duct.

[0011] As a preferred embodiment of the pre-filtration device for the improved UV photocatalytic deodorization equipment described in this utility model, grooves are provided on both sides of the inner wall of the metal filter frame, and the central filter is inserted into the grooves accordingly. The central filter is made of stainless steel. Both the central filter and the metal filter frame are metal filters. Together with the internal coarse filter cotton, it facilitates the preliminary filtration of exhaust gas.

[0012] As a preferred embodiment of the improved UV photocatalytic deodorization equipment pre-filtration device described in this utility model, the mounting frame has sealing grooves around its outer perimeter, and a sealing ring is fixedly connected to the side of the fixing plate near the mounting frame. The sealing ring and the sealing groove are inserted and fitted to each other, which facilitates the sealing of the metal filter frame and improves its sealing performance.

[0013] As a preferred embodiment of the pre-filtration device for the improved UV photocatalytic deodorization equipment described in this utility model, a glass plate is embedded and fixedly connected at the center of the fixed plate, and the glass plate corresponds to the position of the observation window, so as to facilitate the staff to check the status of the filtration equipment in the primary filtration mechanism.

[0014] As a preferred embodiment of the pre-filtration device for the improved UV photocatalytic deodorization equipment described in this utility model, the positioning frame has limit grooves on both sides of its outer wall. The limit grooves are slidably connected to the limit strips to facilitate the installation of the positioning frame. Corrosion-resistant rubber rings are provided around the top and bottom of the positioning frame, and adjacent positioning frames fit tightly together to facilitate sealing of the advanced filtration mechanism.

[0015] As a preferred embodiment of the improved UV photocatalytic deodorization equipment pre-filtration device described in this utility model, a pressure strip is fixedly connected to the inner wall of the inspection door. The pressure strip corresponds and fits into the pressure groove. By pressing the pressure strip onto the pressure groove, the positioning frame is firmly fixed in the pre-filtration box.

[0016] As a preferred embodiment of the pre-filtration device for the improved UV photocatalytic deodorization equipment described in this utility model, the air inlet pipe passes through the top of the pre-filtration box and is connected to the inside of the mounting frame; the top of the air-collecting hood is connected to the bottom of the advanced filtration mechanism; and the bottom of the air-collecting hood passes through the pre-filtration box and is connected to the corresponding air duct, so that the exhaust gas filtered by the primary filtration mechanism and the advanced filtration mechanism can enter the main body of the UV photocatalytic deodorization equipment.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention utilizes a pre-filter, an intermediate filter, and a pre-filter box working in tandem. By equipping the UV photocatalytic deodorization device with a separate pre-filter box, multiple filtrations are applied to the exhaust gas before it enters the equipment. This reduces pollutants entering the UV photocatalytic device, prevents catalyst contamination and UV lamp blockage, and improves photocatalytic efficiency. Simultaneously, the pre-filter box effectively intercepts most pollutants, reducing the frequency of cleaning and maintenance of the main equipment. Furthermore, the easily replaceable filter media design lowers maintenance costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the appearance of a pre-filtration device for an improved UV photocatalytic deodorization equipment according to this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a pre-filtration device for an improved UV photocatalytic deodorization equipment according to this utility model;

[0022] Figure 3 This is a schematic diagram of the advanced filtration mechanism of a pre-filtration device for an improved UV photocatalytic deodorization equipment according to this utility model;

[0023] Figure 4 This is a schematic diagram of the installation of a pre-filtration device for an improved UV photocatalytic deodorization equipment according to this utility model.

[0024] Legend: 1. Pre-filter box; 2. Air inlet pipe; 3. Primary filter mechanism; 301. Mounting bracket; 302. Metal filter frame; 303. Central filter screen; 304. Coarse filter cotton; 305. Fixing plate; 306. Finger hole; 4. Advanced filter mechanism; 401. Limiting strip; 402. Positioning frame; 403. Pressure groove; 404. Meltblown cloth filter material; 5. Inspection door; 6. Observation window; 7. Sealing ring; 8. Glass plate; 9. Limiting groove; 10. Pressure strip; 11. Air concentrator hood; 12. Air duct; 13. Main body of UV photocatalytic deodorization equipment. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Please see Figure 1-4 This utility model provides an improved UV photocatalytic deodorization equipment pre-filtration device, including a pre-filtration box 1, an air inlet pipe 2 fixedly connected to the top of the pre-filtration box 1, a primary filter mechanism 3 provided on the inner wall of the pre-filtration box 1 near the top, an advanced filter mechanism 4 provided on the pre-filtration box 1 near the bottom, and an inspection door 5 hinged to one side of the outer wall of the pre-filtration box 1, with an observation window 6 embedded and fixedly connected in the center of the inspection door 5.

[0029] The primary filter mechanism 3 includes a mounting frame 301 fixed to the inner wall of the pre-filter box 1. A metal filter frame 302 is provided inside the mounting frame 301. A central filter 303 is provided at the center of the metal filter frame 302. Coarse filter cotton 304 is provided on both sides of the central filter 303. A fixing plate 305 is fixedly connected to the outer end of the metal filter frame 302. Finger holes 306 are provided on both sides of the surface of the fixing plate 305.

[0030] The inner walls of the metal filter frame 302 are provided with grooves on both sides, and the central filter 303 is inserted into the grooves. The central filter 303 is made of stainless steel. Both the central filter 303 and the metal filter frame 302 are metal filters. Together with the internal coarse filter cotton 304, they facilitate the preliminary filtration of exhaust gas.

[0031] Sealing grooves are provided around the outer perimeter of the mounting bracket 301. A sealing ring 7 is fixedly connected to the side of the fixing plate 305 near the mounting bracket 301. The sealing ring 7 is inserted into the sealing groove to facilitate the sealing of the metal filter frame 302 and improve its sealing performance.

[0032] In this embodiment, a glass plate 8 is embedded and fixedly connected at the center of the fixing plate 305. The glass plate 8 corresponds to the position of the observation window 6, which makes it convenient for staff to check the status of the filtration equipment in the primary filtration mechanism 3.

[0033] The advanced filtration mechanism 4 includes limiting strips 401 fixed to both sides of the inner wall of the pre-filtration box 1. A positioning frame 402 is provided between the two limiting strips 401. Pressure grooves 403 are provided at both ends of the outer side of the positioning frame 402. Meltblown cloth filter material 404 is provided inside the positioning frame 402. An air-collecting hood 11 is fixedly connected to the inner wall of the pre-filtration box 1.

[0034] The positioning frame 402 has limit grooves 9 on both sides of its outer wall. The limit grooves 9 are slidably connected to the limit strip 401 to facilitate the installation of the positioning frame 402. The top and bottom of the positioning frame 402 are equipped with corrosion-resistant rubber rings, and two adjacent positioning frames 402 fit tightly together to facilitate the sealing of the advanced filtration mechanism 4.

[0035] A pressure strip 10 is fixedly connected to the inner wall of the inspection door 5. The pressure strip 10 corresponds to and fits into the pressure groove 403. The pressure strip 10 is pressed onto the pressure groove 403, which makes it easy to firmly fix the positioning frame 402 in the pre-filter box 1.

[0036] The bottom of the pre-filter box 1 is fixedly connected to the air duct 12, and the main body of the UV photocatalytic deodorization device 13 is installed on one side of the air duct 12.

[0037] The air inlet pipe 2 passes through the top of the pre-filter box 1 and is connected to the inside of the mounting bracket 301. The top of the wind concentrator 11 is connected to the bottom of the advanced filtration mechanism 4. The bottom of the wind concentrator 11 passes through the pre-filter box 1 and is connected to the air duct 12, so that the exhaust gas filtered by the primary filtration mechanism 3 and the advanced filtration mechanism 4 can enter the main body 13 of the UV photocatalytic deodorization equipment.

[0038] In use, exhaust gas enters the pre-filter box 1 through the intake pipe 2. After being filtered by the metal filter frame 302, the central filter screen 303, and the coarse filter cotton 304 in the primary filter mechanism 3, large particles in the exhaust gas are easily removed. In this application, the top of the metal filter frame 302 has a rectangular groove to store a certain amount of filtered particles, which is convenient for removing the large particles along with the fixed plate 305 from the mounting bracket 301 for easy cleaning.

[0039] Meanwhile, the filtration status of the exhaust gas in the primary filter unit 3 can be viewed through the glass plate 8 and the observation window 6, which facilitates regular maintenance and replacement of filter parts.

[0040] After being filtered by the primary filter mechanism 3, the exhaust gas continues to enter the subsequent advanced filter mechanism 4, where it is filtered by the meltblown cloth filter material 404 arranged in a folded shape in the positioning frame 402, which facilitates the capture and filtration of some fine particulate matter in the exhaust gas.

[0041] If extremely high purification requirements are needed, the meltblown fabric filter material 404 in the positioning frame 402 can be replaced with a high-efficiency filter, such as HEPA or ULPA. After multiple filtrations, the exhaust gas, after passing through the air hood 11, can then enter the main body 13 of the UV photocatalytic deodorization equipment through the duct 12 for catalytic deodorization.

[0042] In this embodiment, during maintenance, the primary filter mechanism 3 and the advanced filter mechanism 4 can be replaced and cleaned simply by opening the maintenance door 5.

[0043] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pre-filtration device for an improved UV photocatalytic deodorization equipment, comprising a pre-filtration box (1), characterized in that, An air inlet pipe (2) is fixedly connected to the top of the pre-filter box (1). A primary filter mechanism (3) is provided on the inner wall of the pre-filter box (1) near the top. An advanced filter mechanism (4) is provided on the inner wall of the pre-filter box (1) near the bottom. A maintenance door (5) is hinged to one side of the outer wall of the pre-filter box (1). An observation window (6) is embedded and fixedly connected in the center of the maintenance door (5). The primary filtration mechanism (3) includes a mounting frame (301) fixed to the inner wall of the pre-filtration box (1). A metal filter frame (302) is provided inside the mounting frame (301). A central filter (303) is provided at the center of the metal filter frame (302). Coarse filter cotton (304) is provided on both sides of the central filter (303). A fixing plate (305) is fixedly connected to the outer end of the metal filter frame (302). Finger holes (306) are provided on both sides of the surface of the fixing plate (305). The advanced filtration mechanism (4) includes limiting strips (401) fixed on both sides of the inner wall of the pre-filtration box (1), a positioning frame (402) is provided between the two limiting strips (401), pressure grooves (403) are provided at both ends of the outer side of the positioning frame (402), meltblown cloth filter material (404) is provided inside the positioning frame (402), and a wind-gathering hood (11) is fixedly connected to the inner wall of the pre-filtration box (1). The bottom of the pre-filter box (1) is fixedly connected to a duct (12), and a UV photocatalytic deodorization device body (13) is provided on one side of the duct (12).

2. The pre-filtration device for an improved UV photocatalytic deodorization equipment according to claim 1, characterized in that, The inner wall of the metal filter frame (302) is provided with grooves on both sides, and the central filter (303) is inserted into the grooves. The central filter (303) is made of stainless steel.

3. The pre-filtration device for an improved UV photocatalytic deodorization equipment according to claim 1, characterized in that, The mounting bracket (301) has sealing grooves around its outer perimeter. A sealing ring (7) is fixedly connected to the side of the fixing plate (305) near the mounting bracket (301). The sealing ring (7) is inserted into and fits into the sealing groove.

4. The pre-filtration device for an improved UV photocatalytic deodorization equipment according to claim 1, characterized in that, A glass plate (8) is embedded and fixedly connected at the center of the fixing plate (305), and the glass plate (8) corresponds to the position of the observation window (6).

5. The pre-filtration device for an improved UV photocatalytic deodorization equipment according to claim 1, characterized in that, The positioning frame (402) has limit grooves (9) on both sides of its outer wall, and the limit grooves (9) are slidably connected to the limit strips (401).

6. The pre-filtration device for an improved UV photocatalytic deodorization equipment according to claim 1, characterized in that, The inner wall of the inspection door (5) is fixedly connected with a pressure strip (10), and the pressure strip (10) corresponds to and fits into the pressure groove (403).

7. The pre-filtration device for an improved UV photocatalytic deodorization equipment according to claim 1, characterized in that, The air intake pipe (2) passes through the top of the pre-filter box (1) and is connected to the inside of the mounting bracket (301). The top of the wind concentrator (11) is connected to the bottom of the advanced filtration mechanism (4). The bottom of the wind concentrator (11) passes through the pre-filter box (1) and is connected to the corresponding air duct (12).

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