A high-efficiency filtration device for cleanrooms

Abstract

This utility model discloses a high-efficiency filtration device for cleanrooms, including a housing. A filter structure is installed at the top of the housing, a door is installed at one end of the housing, and a base is installed at the bottom of the housing. A pull-out storage structure is installed inside the base. The filter structure includes a cover plate at the top of the housing, an air inlet pipe installed in the middle of the cover plate, a protective cover installed at the bottom of the air inlet pipe, mounting grooves installed on both sides of the top and bottom of the protective cover, screws installed inside the mounting grooves, and buffer springs installed outside the screws. A fan is installed in the middle of the protective cover, and filter media is installed inside the housing. A partition is installed on one side of the filter media. This utility model utilizes the principle that particles are intercepted by directly impacting the fiber surface due to inertia, folding the filter media into equidistant pleats to increase the filtration area. At the same time, it ensures that the airflow passes evenly through all pleats. The uniform airflow causes particles to be evenly deposited on the surface of the filter media, avoiding local clogging.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to a high-efficiency filtration device for cleanrooms. Background Technology

[0002] A cleanroom is a controlled environment that regulates parameters such as particulate matter, temperature, humidity, pressure, and microorganisms in the air to meet the needs of specific production processes or scientific research. Its core objective is to minimize contamination and ensure product yield, experimental accuracy, and personnel safety. Filtration devices are indispensable technical equipment for environmental protection and daily life. Their purpose is to separate impurities from mixtures using physical, chemical, or biological methods to meet cleanliness, safety, and process requirements. The following is a background on filtration devices and their key development trajectory.

[0003] To this end, Chinese patent application number CN 222478486 U discloses a high-efficiency filtration device for cleanrooms, comprising a mounting base surrounding an air inlet, a filter cover fitted around the air inlet, and a connection structure between the mounting base and the filter cover. This application has the effect of preventing dust from accumulating in the plenum-type air supply duct, maintaining the smooth flow of hot and cold air, and reducing the risk of dust re-entering the cleanroom.

[0004] The aforementioned high-efficiency filtration device for cleanrooms has the effect of preventing dust from accumulating in the static pressure box-type air supply channel, which can maintain the smooth flow of hot and cold air and reduce the risk of dust re-entering the cleanroom. However, this device lacks dust collection after filtration, which will cause sediment to accumulate inside the filtration device, resulting in poor filtration effect. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency filtration device for cleanrooms, in order to solve the shortcomings of existing devices that are difficult to filter efficiently.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-efficiency filtration device for cleanrooms, including a housing;

[0007] A filter structure is installed at the top of the box, a door is installed at one end of the box, a base is installed at the bottom of the box, and a pull-out storage structure is installed inside the base;

[0008] The filter structure includes a cover plate disposed at the top of the housing, an air inlet pipe installed at the middle position of the cover plate, a protective cover installed at the bottom end of the air inlet pipe, and mounting grooves installed on both sides of the top and bottom ends of the protective cover, with screws installed inside the mounting grooves.

[0009] A buffer spring is installed on the outside of the screw, and a fan is installed in the middle of the protective cover.

[0010] By intercepting particles that directly impact the fiber surface due to inertia, the filter media is folded into equidistant pleats, increasing the filtration area. At the same time, it ensures that the airflow passes evenly through all the pleats. The uniform airflow causes the particles to be deposited evenly on the surface of the filter media, avoiding local clogging.

[0011] Furthermore, the interior of the housing is equipped with filter media, and a partition is installed on one side of the filter media to facilitate the stabilization of the filter media.

[0012] Furthermore, a filter screen is installed at the top of the air inlet pipe. The filter screens are interwoven to form a mesh structure, which facilitates the filtration of large particulate impurities. Furthermore, multiple sets of baffles are provided, and the baffles are arranged at equal intervals on one side of the filter material to optimize airflow distribution.

[0013] Furthermore, the mounting groove has an internal thread, and the screw has an external thread, thus forming a threaded connection between the mounting groove and the screw.

[0014] Furthermore, the pull-out storage structure includes a groove inside the base, a dust collection box installed inside the groove, and a handle installed on one side of the dust collection box for easy removal and disassembly.

[0015] Furthermore, the outer diameter of the dust collection box is smaller than the inner diameter of the slide groove, and the dust collection box and the slide groove form a sliding structure, which facilitates disassembly and installation.

[0016] The present invention provides a high-efficiency filtration device for cleanrooms, the advantages of which are: through the setting of the filtration structure, the internal air of the cleanroom can be filtered, and the pull-out structure can collect the filtered dust, making the filtration effect better.

[0017] By incorporating a fan, filter media, and baffles, the airflow is ensured to pass uniformly over the surface of the filter media when the fan is driven, thereby enabling the adsorption of airborne particles by the filter media. Furthermore, the baffles act as supporting elements between the filter media, ensuring that the airflow passes evenly over the surface of the filter media and preventing the filter media from deforming or breaking under the impact of the airflow.

[0018] The dust collection box is designed to collect particulate matter through a pull-out storage structure and airflow guidance. It is usually located downstream of the filter and is used to collect particulate dust and fibers intercepted by the pre-filter to ensure that the cleanroom air is not contaminated by secondary pollution. The dust collection box is usually drawer-type, so maintenance personnel can empty the particulate matter without disassembling the entire filter. Attached Figure Description

[0019] Figure 1 This is a side view of the three-dimensional structure of the present invention;

[0020] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the filter structure of this utility model;

[0022] Figure 4 For the present utility model Figure 3 Enlarged cross-sectional view of point A in the middle section;

[0023] Figure 5 This is a three-dimensional structural diagram of the pull-out storage structure of this utility model.

[0024] The following are the labels in the attached diagram: 1. Housing; 2. Filter structure; 201. Cover plate; 202. Air inlet pipe; 203. Protective cover; 204. Mounting groove; 205. Screw; 206. Buffer spring; 207. Fan; 208. Filter media; 209. Partition; 3. Door; 4. Base; 5. Pull-out storage structure; 501. Slide; 502. Dust collection box; 503. Handle. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 As shown, one embodiment of this utility model is a high-efficiency filtration device for cleanrooms, comprising a housing 1.

[0027] A filter structure 2 is installed at the top of the box 1, a door 3 is installed at one end of the box 1, a base 4 is installed at the bottom of the box 1, and a pull-out storage structure 5 is installed inside the base 4.

[0028] The pull-out storage structure 5 includes a slide groove 501 set inside the base 4. A dust collection box 502 is installed inside the slide groove 501. The outer diameter of the dust collection box 502 is smaller than the inner diameter of the slide groove 501. The dust collection box 502 and the slide groove 501 form a sliding structure. A handle 503 is installed on one side of the dust collection box 502.

[0029] Please see Figures 1-2 and Figure 5As shown, particulate matter is guided by airflow to fall into the dust collection box 502 for centralized storage. By holding the handle 503, the dust collection box 502 can be removed from the slide 501. The dust collection box 502 efficiently collects and seals the filtered dust for easy cleaning, while ensuring that the air cleanliness of the cleanroom is not subject to secondary pollution. The dust collection box 502 can be cleaned regularly to reduce the load inside the box and extend its service life.

[0030] The filter structure 2 includes a cover plate 201 located at the top of the housing 1. An air inlet pipe 202 is installed in the middle of the cover plate 201. A filter screen is installed at the top of the air inlet pipe 202. The filter screens are intersected to form a mesh structure.

[0031] A protective cover 203 is installed at the bottom of the air inlet duct 202. Mounting grooves 204 are installed on both sides of the top and bottom of the protective cover 203. The mounting grooves 204 have internal threads, and the screws 205 have external threads. The mounting grooves 204 and the screws 205 form a threaded connection. The screws 205 are installed inside the mounting grooves 204.

[0032] A buffer spring 206 is installed on the outside of the screw 205. A fan 207 is installed in the middle of the protective cover 203. A filter material 208 is installed inside the housing 1. The filter material 208 is microfiber paper. The partition 209 is aluminum foil. Multiple sets of partitions 209 are provided. The partitions 209 are arranged at equal intervals on one side of the filter material 208. A partition 209 is installed on one side of the filter material 208.

[0033] Please see Figures 1-4 As shown, the filter screen at the top of the air inlet pipe 202 can initially prevent particles from entering the interior of the bottom of the cover plate 201, avoiding damage to the interior. Because the fan 207 and the motor are integrated, the periodic vibration generated by the fan 207 during operation is absorbed by the buffer spring 206, preventing the fan 207 from transmitting power to the interior of the housing 1 when vibrating, thus affecting the filtration effect of the internal components. The buffer spring 206 is evenly distributed around the interior of the outer protective cover 203 of the fan 207. The buffer spring 206 is provided with an installation groove 204 to prevent tilting. The fan 207 serves as the power source, driving air to pass through the filter material 208 at a stable flow rate, ensuring that the air flows evenly across the surface of the filter material 208, avoiding a decrease in filtration efficiency caused by excessively fast or slow local flow rates. When the air passes through, particles are intercepted on the surface of the filter material 208. Under high-pressure airflow, the baffle 209 is made of aluminum foil. The baffle 209 supports the filter material 208 to maintain a stable structure and keeps the pleat spacing of the filter material 208 uniform.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency filtration device for cleanrooms, comprising a housing (1); Its features are: A filter structure (2) is installed at the top of the box (1), a door (3) is installed at one end of the box (1), a base (4) is installed at the bottom of the box (1), and a pull-out storage structure (5) is installed inside the base (4). The filter structure (2) includes a cover plate (201) disposed at the top of the housing (1), an air inlet pipe (202) is installed at the middle position of the cover plate (201), a protective cover (203) is installed at the bottom end of the air inlet pipe (202), and mounting grooves (204) are installed on both sides of the top and bottom ends of the protective cover (203), and screws (205) are installed inside the mounting grooves (204). A buffer spring (206) is installed on the outside of the screw (205), and a fan (207) is installed at the middle position of the protective cover (203).

2. A high efficiency filtration device for clean rooms according to claim 1, characterized in that: The housing (1) is equipped with filter material (208), and a partition (209) is installed on one side of the filter material (208).

3. The high-efficiency filtration device for cleanrooms according to claim 1, characterized in that: The top of the air inlet pipe (202) is equipped with a filter screen, which is interwoven to form a mesh structure.

4. A high-efficiency filtration device for cleanrooms according to claim 2, characterized in that: The partition (209) is provided in multiple sets, and the partition (209) is arranged at equal intervals on one side of the filter material (208).

5. A high-efficiency filtration device for cleanrooms according to claim 1, characterized in that: The mounting groove (204) has an internal thread, and the screw (205) has an external thread. The mounting groove (204) and the screw (205) form a threaded connection.

6. A high-efficiency filtration device for cleanrooms according to claim 1, characterized in that: The pull-out storage structure (5) includes a groove (501) disposed inside the base (4), a dust collection box (502) is installed inside the groove (501), and a handle (503) is installed on one side of the dust collection box (502).

7. A high-efficiency filtration device for cleanrooms according to claim 6, characterized in that: The outer diameter of the dust collection box (502) is smaller than the inner diameter of the slide groove (501), and the dust collection box (502) and the slide groove (501) constitute a sliding structure.

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