Multi-stage filtering type gas purification device

Abstract

The utility model relates to the technical field of gas purification equipment, in particular to a multi-stage filtering type gas purification device which comprises a gas purification channel used for conveying gas, and a primary filtering mechanism, a fine filtering mechanism and an adsorption filtering mechanism which are detachable are sequentially mounted at the top of the gas purification channel. The gas purification channel is used for conveying gas, the ventilation openings in the two ends of the gas purification channel are convenient for gas to enter and exit, and the exhaust fans in the ventilation openings can promote the gas to flow; an inserting groove in the top of the gas purification channel is used for mounting the primary filtering mechanism, the fine filtering mechanism and the adsorption filtering mechanism, so that the mounting stability is ensured; respective filter screen boxes of the primary filter mechanism, the fine filter mechanism and the adsorption filter mechanism are matched with the inserting grooves in a sliding manner, the bottoms of the filter screen boxes are in close contact with the inner bottom surface of the gas purification channel, and a fixed top seat is arranged at the top, so that the filter mechanisms are convenient to mount and dismount, meanwhile, the gas can be effectively subjected to multi-stage filtration, and the gas purification effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas purification equipment technical field, concretely is multistage filter formula gas purification device. BACKGROUND

[0002] With the development of modern industry and science and technology, gas purification technology plays a vital role in many fields. From semiconductor manufacturing, pharmaceutical production to food processing, the demand for high-purity gas is increasing. As an important part of gas purification technology, the optimization of performance and innovation of multistage filter formula gas purification device is of great significance to improve the efficiency of gas purification, reduce cost and ensure product quality. Many existing filter formula gas purification devices often use complex installation methods or integral structures, which makes it difficult to replace the filter material. SUMMARY

[0003] The utility model aims at providing multistage filter formula gas purification device to solve the problem of complex installation and inconvenient replacement of the filter mechanism of the existing filter formula gas purification in the above background technology.

[0004] To achieve the above purpose, the utility model provides the following technical scheme:

[0005] Multistage filter formula gas purification device, including the gas purification channel for gas delivery, the top of the gas purification channel is installed with detachable primary filter mechanism, fine filter mechanism and adsorption filter mechanism in turn;

[0006] The both ends of the gas purification channel are provided with air vents, and the air vent near the primary filter mechanism end is installed with an air extractor, the top of the gas purification channel is provided with a plug-in slot for installing the primary filter mechanism, fine filter mechanism and adsorption filter mechanism, the width of the plug-in slot is the same as the inner width of the gas purification channel;

[0007] The primary filter mechanism, fine filter mechanism and adsorption filter mechanism all include filter screen box for placing filter material and mesh box cover, the filter screen box is matched with the size of the plug-in slot and is plug-in matched, the filter screen box is slidingly matched with the gas purification channel, the bottom of the filter screen box is in close contact with the inner bottom surface of the gas purification channel, and the top of the filter screen box is provided with a fixed top seat.

[0008] As a preferred, the air vents at both ends of the gas purification channel are all installed with dustproof nets.

[0009] As a preferred, the top surface of the fixed top seat is connected to the top outer wall of the gas purification channel through mounting bolts at both ends.

[0010] As preferred, a pull ring is mounted at the top center of the fixed top seat.

[0011] As preferred, a limiting block is mounted at the top of one side of the filter screen box close to the mesh box cover.

[0012] As preferred, the mesh box cover is connected to the limiting block through a locking bolt.

[0013] As preferred, a fixed lug is mounted at each of the four top corners of the back of the gas purification channel.

[0014] As preferred, a mounting hole is formed in the fixed lug.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] In the multi-stage filtering type gas purification device, the gas purification channel is used for gas conveying, the ventilation openings at both ends of the gas purification channel are convenient for gas in and out, and the air extractor in the ventilation opening can promote gas flow; the plug-in slot at the top of the gas purification channel is used for mounting the primary filtering mechanism, the fine filtering mechanism and the adsorption filtering mechanism, the width of the plug-in slot is the same as the width in the gas purification channel, and the stability of installation is ensured; the filter screen boxes of the primary filtering mechanism, the fine filtering mechanism and the adsorption filtering mechanism are adapted to and are in sliding cooperation with the plug-in slot, the bottoms are in close contact with the bottom surface in the gas purification channel, and the top has a fixed top seat, so that the filtering mechanism is convenient to install and disassemble, and can effectively perform multi-stage filtering on gas and improve the gas purification effect.

[0017] In the multi-stage filtering type gas purification device, 1-2 layers of filter screens made of glass fiber, polyester fiber and the like are arranged in the primary filtering mechanism, HEPA filter screens or ULPA filter screens are arranged in the fine filtering mechanism, and granular desiccants, activated carbon particles and the like are filled in the adsorption filtering mechanism; the filter screens made of glass fiber, polyester fiber and the like in the primary filtering mechanism can preliminarily block large-particle impurities and dust, effectively protect the subsequent fine filtering mechanism and adsorption filtering mechanism, and prolong the service life of the mechanisms; the HEPA filter screens or ULPA filter screens arranged in the fine filtering mechanism can further remove micro-particle matters in gas, including harmful microorganisms such as bacteria and viruses, and ensure the high purity of the gas; and the granular desiccants and activated carbon particles arranged in the adsorption filtering mechanism can effectively remove moisture and harmful gases such as formaldehyde and benzene in the gas, and further improve the quality of the gas.

[0018] In the multi-stage filtering gas purification device, the top surface of the fixed top base is connected to the top outer wall of the gas purification channel through mounting bolts at both ends, and a pull ring is mounted at the center of the top of the fixed top base, so that the fixed top base can be stably connected to the gas purification channel, and the pull ring facilitates the disassembly and replacement of the filter screen box, improving the convenience of maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to further explain the embodiments of the present application, but do not constitute a limitation on the present application.

[0020] Fig. 1 is a structural schematic view of the present application;

[0021] Fig. 2 is a structural schematic view of the primary filtering mechanism of the present application;

[0022] Fig. 3 is a sectional exploded structural schematic view of the primary filtering mechanism and the gas purification channel of the present application;

[0023] 10, gas purification channel; 11, ventilation opening; 12, exhaust fan; 13, dust screen; 14, plug-in slot;

[0024] 20, primary filtering mechanism; 21, filter screen box; 22, fixed top base; 23, mounting bolt; 24, pull ring; 25, mesh box cover; 26, limiting block; 27, locking bolt;

[0025] 30, fine filtering mechanism;

[0026] 40, adsorption filtering mechanism;

[0027] 50, fixing lug; 51, mounting hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the embodiments of the present application and the drawings of the specification. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the utility model, need understanding is, the term "center", "vertical", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and so on the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the device or element referred to must have a particular orientation, is constructed and operated with a particular orientation, therefore can not be understood as the limitation of the utility model.

[0030] Multi-stage filtering type gas purification device, such as Figs. 1-3 As shown, it comprises a gas purification channel 10 for gas conveying, the top of the gas purification channel 10 is sequentially provided with a detachable primary filter mechanism 20, a fine filter mechanism 30 and an adsorption filter mechanism 40; both ends of the gas purification channel 10 are provided with air vents 11, a suction fan 12 is installed in the air vent 11 close to the primary filter mechanism 20 end, the top of the gas purification channel 10 is provided with a plug-in slot 14 for installing the primary filter mechanism 20, the fine filter mechanism 30 and the adsorption filter mechanism 40, the width of the plug-in slot 14 is the same as the inner width of the gas purification channel 10; the primary filter mechanism 20, the fine filter mechanism 30 and the adsorption filter mechanism 40 all comprise a filter screen box 21 for placing filter material and a mesh box cover 25, the filter screen box 21 is adapted to the size of the plug-in slot 14 and is plug-in fitted with the plug-in slot 14, the filter screen box 21 is slidingly fitted with the gas purification channel 10, the bottom of the filter screen box 21 is in close contact with the inner bottom surface of the gas purification channel 10, the top of the filter screen box 21 is provided with a fixed top seat 22, the gas purification channel 10 is provided for gas conveying, the air vents 11 at both ends facilitate the gas to enter and exit, the suction fan 12 in the air vent 11 can promote the gas flow; the plug-in slot 14 at the top of the gas purification channel 10 is used for installing the primary filter mechanism 20, the fine filter mechanism 30 and the adsorption filter mechanism 40, and the width of the plug-in slot 14 is the same as the inner width of the gas purification channel 10, ensuring the stability of installation; the filter screen box 21 of the primary filter mechanism 20, the fine filter mechanism 30 and the adsorption filter mechanism 40 is adapted to the plug-in slot 14 and is slidingly fitted, the bottom is in close contact with the inner bottom surface of the gas purification channel 10, and the top has the fixed top seat 22, so that the filter mechanism is convenient to install and detach, and can effectively perform multi-stage filtration on the gas, improving the gas purification effect.

[0031] It is worth mentioning that 1-2 layers of filter screen made of glass fiber, polyester fiber and the like are laid in the primary filtering mechanism 20, HEPA filter screen or ULPA filter screen is laid in the fine filtering mechanism 30, and granular desiccant, activated carbon particles and the like are filled in the adsorption filtering mechanism 40. The filter screen made of glass fiber, polyester fiber and the like arranged in the primary filtering mechanism 20 can preliminarily block large-particle impurities and dust, effectively protect the subsequent fine filtering mechanism 30 and adsorption filtering mechanism 40, and prolong the service life thereof. The HEPA filter screen or ULPA filter screen arranged in the fine filtering mechanism 30 enables the fine filtering mechanism 30 to further remove micro-particle matters in the gas, including harmful microorganisms such as bacteria and viruses, so as to ensure the high purity of the gas. The granular desiccant and activated carbon particles arranged in the adsorption filtering mechanism 40 enable the adsorption filtering mechanism 40 to effectively remove moisture and harmful gases such as formaldehyde and benzene in the gas, and further improve the quality of the gas.

[0032] Further, the dustproof net 13 is arranged at the ventilation opening 11 at each end of the gas purification channel 10, which can effectively block the external dust and sundries from entering the gas purification channel 10, and protect the internal filtering mechanism from being contaminated and damaged.

[0033] Specifically, the top surface of the fixed top seat 22 is connected to the top outer wall of the gas purification channel 10 through the mounting bolts 23 at both ends of the top surface, and the pull ring 24 is arranged at the center of the top of the fixed top seat 22, so that the fixed top seat 22 can be stably connected to the gas purification channel 10, and the pull ring 24 facilitates the disassembly and replacement of the filter screen box 21, thereby improving the convenience of maintenance.

[0034] The filter screen box 21 is provided with the limiting block 26 at the top of one side close to the mesh box cover 25, and the mesh box cover 25 is connected to the limiting block 26 through the locking bolt 27. The limiting block 26 and the locking bolt 27 are arranged to enable the mesh box cover 25 to be firmly fixed to the filter screen box 21, prevent the filter material from loosening and falling off during the filtering process, and ensure the filtering effect.

[0035] In addition, the fixed ears 50 are arranged at the four top corners of the back surface of the gas purification channel 10, and the mounting holes 51 are arranged in the fixed ears 50, so that the gas purification channel 10 can be conveniently installed on the wall surface or other fixed structure, thereby improving the stability and use safety of the equipment.

[0036] Working principle of the multi-stage filtering type gas purification device:

[0037] First, the gas purification channel 10 is fixed at the required position through the fixed ears 50 and mounting holes 51 on the back surface thereof. Then, the ventilation opening 11 close to one end of the primary filtering mechanism 20 is opened, and the air suction machine 12 is started, so that the gas enters the gas purification channel 10 from the ventilation opening 11.

[0038] The gas first passes through the primary filtering mechanism 20, in which the filter screen made of glass fiber, polyester fiber and the like blocks and removes large particles and impurities in the gas. Then, the gas enters the fine filtering mechanism 30, in which the HEPA filter screen or the ULPA filter screen further removes micro-particles, including harmful microorganisms.

[0039] Subsequently, the gas enters the adsorption filtering mechanism 40, in which the desiccant and activated carbon particles remove moisture and harmful gases such as formaldehyde, benzene and the like in the gas. After passing through the three layers of filters, the gas has been highly purified.

[0040] Finally, the purified gas is discharged from the air vent 11 at the other end of the gas purification channel 10, and the dust screen 13 is also installed at the air vent 11 to prevent external dust and impurities from entering.

[0041] During use, if the filter mechanism needs to be replaced or cleaned, the filter screen box 21 and the mesh box cover 25 can be easily disassembled through the pull ring 24 and the locking bolt 27, so that the maintenance work can be completed. The whole use process is simple and efficient, and ensures the quality and stability of the gas purification.

[0042] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. Multistage filter-type gas purification apparatus comprising a gas purification channel (10) for gas transport, characterized in that: The top of the gas purification channel (10) is sequentially provided with a detachable primary filter mechanism (20), a fine filter mechanism (30) and an adsorption filter mechanism (40). Both ends of the gas purification channel (10) are provided with air vents (11), and an air extractor (12) is installed in the air vent (11) near the primary filter mechanism (20). The top of the gas purification channel (10) is provided with plug-in slots (14) for installing the primary filter mechanism (20), the fine filter mechanism (30) and the adsorption filter mechanism (40), and the width of the plug-in slots (14) is the same as the inner width of the gas purification channel (10). The primary filter mechanism (20), the fine filter mechanism (30) and the adsorption filter mechanism (40) each include a filter mesh box (21) for placing filter material and a mesh box cover (25). The filter mesh box (21) is adapted to the size of the plug-in slots (14) and is plug-in fitted with the plug-in slots (14). The filter mesh box (21) is slidingly fitted with the gas purification channel (10), the bottom of the filter mesh box (21) is in close contact with the inner bottom surface of the gas purification channel (10), and the top of the filter mesh box (21) is provided with a fixed top seat (22).

2. The multi-stage filtration gas purification device according to claim 1, characterized in that: The air vents (11) at both ends of the gas purification channel (10) are each provided with a dustproof net (13).

3. The multi-stage filtration gas purification device of claim 1, wherein: Both ends of the top surface of the fixed top seat (22) are connected to the top outer wall of the gas purification channel (10) by mounting bolts (23).

4. The multi-stage filtration gas purification device of claim 1, wherein: The top center of the fixed top seat (22) is provided with a pull ring (24).

5. The multi-stage filtration gas purification device of claim 1, wherein: The side of the filter mesh box (21) near the mesh box cover (25) is provided at the top with a limiting block (26).

6. The multi-stage filtration gas purification device of claim 5, wherein: The mesh box cover (25) is connected to the limiting block (26) by locking bolts (27).

7. The multi-stage filtration gas purification device of claim 1, wherein: Four top corners of the back of the gas purification channel (10) are each provided with a fixed lug (50).

8. The multi-stage filtration gas purification device of claim 7, wherein: The fixed lug (50) is provided with a mounting hole (51).

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