Gas purification filter element structure

Abstract

The invention discloses a gas purification filter element structure, which relates to the technical field of gas purification equipment, and comprises a mounting pore plate, a bottom plate, a filter column body and a catalytic column body, one end of the filter column body is arranged on the mounting hole plate, the other end of the filter column body is arranged on the bottom plate, and one end of the catalytic column body is mounted on the bottom plate and located in the middle of the bottom plate; the catalytic column body is positioned in the filtering column body; the side surfaces of the filtering column body and the catalyzing column body are of mesh-shaped structures; a hollow connecting column is arranged at one end of the catalytic column body, and air holes are formed in the side surface of the hollow connecting column; a flow guide cone is arranged at the end, away from the catalysis column body, of the hollow connecting column, and a flexible sealing ring is arranged on the side face of the hollow connecting column. The flexible sealing ring is of a hollow cone frustum structure, the end face, with the small cross section, of the flexible sealing ring is fixedly arranged on the outer surface of the hollow connecting column, and the end, with the large cross section, of the flexible sealing ring abuts against the inner wall of the filtering column body. The device has the advantages of being easy to replace and clean and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of gas purification equipment, and in particular to a gas purification filter element structure. Background Art

[0002] Industrial production and daily life generate waste gas, which contains dust, nitrogen oxides, and organic gases. If discharged directly, it will pollute the air. Therefore, these gases need to be purified before discharge. The filter element and catalyst in the current gas purification equipment are sintered together, and they need to be replaced together, which is costly. In addition, after long-term use, the filter element needs to be removed and cleaned for dust removal, which is a very tedious cleaning process. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a gas purification filter element structure which has a simple structure and can remove dust from industrial or daily waste gas and catalyze nitrogen oxides and organic gases therein, thereby preventing them from being directly discharged into the air and causing environmental pollution.

[0004] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0005] A gas purification filter element structure comprises a mounting hole plate, a bottom plate, a filter column and a catalytic column; one end of the filter column is arranged on the mounting hole plate, and the other end is arranged on the bottom plate; one end of the catalytic column is mounted on the bottom plate and is located in the middle of the bottom plate; the catalytic column is located in the filter column;

[0006] The sides of the filter column and the catalytic column are arranged in a mesh structure;

[0007] A hollow connecting column is provided at one end of the catalytic column, and a pore is provided on the side of the hollow connecting column; a guide cone is provided at one end of the hollow connecting column away from the catalytic column, and a flexible sealing ring is provided on the side of the hollow connecting column;

[0008] The flexible sealing ring is a hollow truncated cone structure. The end face of the flexible sealing ring with a small cross section is fixedly arranged on the outer surface of the hollow connecting column, and the other end with a large cross section abuts against the inner wall of the filter column.

[0009] Furthermore, two positioning rings are provided between the filter column and the catalytic column, and the two positioning rings are spaced apart.

[0010] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0011] In actual work, the gas to be purified enters from the side of the filter column, and dust and other particulate matter will adhere to the outer wall of the filter column. The gas after dust removal is catalyzed by the catalytic column and then flows out through the air holes of the hollow connecting column. When cleaning is required, air is blown into the filter column through the air pipe, and then the surface of the flexible sealing ring will shrink under the action of air pressure, so that a gap appears between the flexible sealing ring and the inner side of the filter column. Then the gas enters from the gap and flows to the outside of the filter column, thereby blowing off the accumulated dust attached to the surface of the filter column. The filter element and the catalyst in the present invention are separate, and do not need to be replaced together when replacing, so the cost required for replacement is relatively low. In addition, the present invention can clean the dust on the filter column by blowing air, and the cleaning operation process is also relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the working principle of the present invention during filtering;

[0013] Figure 2 This is a schematic diagram of the working principle of the present invention when cleaning;

[0014] Figure 3 is a top view of the flexible sealing ring of the present invention;

[0015] Figure 4 It is a top view of the positioning ring in the present invention.

[0016] Parts names and reference numbers:

[0017] 1-mounting orifice plate, 2-bottom plate, 3-filter column, 4-catalytic column, 5-hollow connecting column, 6-air hole, 7-guide cone, 8-flexible sealing ring, 9-positioning ring, 10-air blowing pipe. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, this should not be understood as limiting the scope of the present invention to the following embodiments, and all technologies implemented based on the present invention fall within the scope of the present invention.

[0019] This embodiment provides a gas purification filter element structure, such as Figures 1-4 As shown, it includes a mounting hole plate 1, a base plate 2, a filter column 3 and a catalytic column 4; one end of the filter column 3 is arranged on the mounting hole plate 1, and the other end is arranged on the base plate 2, and one end of the catalytic column 4 is installed on the base plate 2 and is located in the middle of the base plate 2; the catalytic column 4 is in the filter column 3; wherein the filter column material can be an organic material, metal or inorganic material such as ceramic.

[0020] The sides of the filter column 3 and the catalytic column 4 are arranged in a mesh structure;

[0021] A hollow connecting column 5 is provided at one end of the catalytic column 4, and an air hole 6 is provided on the side of the hollow connecting column 5; a guide cone 7 is provided at the end of the hollow connecting column 5 away from the catalytic column 4, and a flexible sealing ring 8 is provided on the side of the hollow connecting column 5;

[0022] The flexible sealing ring 8 is a hollow truncated cone structure. One end face of the flexible sealing ring 8 with a small cross section is fixedly arranged on the outer surface of the hollow connecting column 5, and the other end with a large cross section abuts against the inner wall of the filter column 3.

[0023] In actual operation, the gas to be purified enters from the side of the filter column 3, and dust and other particulate matter will adhere to the outer wall of the filter column 3. The gas after dust removal passes through the catalytic column 4 and then flows out through the air hole 6 of the hollow connecting column 5; when cleaning is required, air is blown into the filter column 3 through the air blowing pipe 10, and then the surface of the flexible sealing ring 8 will shrink under the action of air pressure, so that a gap will appear between the flexible sealing ring 8 and the inner side of the filter column 3, and then the gas enters from the gap and flows to the outside of the filter column 3, thereby blowing off the dust attached to the surface of the filter column 3. The filter element and the catalyst in the present invention are separate, and do not need to be replaced together when replacing, and the cost required for replacement is relatively low; in addition, the present invention can clean the dust on the filter column by blowing air, and the cleaning operation process is also relatively simple.

[0024] The above embodiment is further optimized, where two positioning rings 9 are provided between the filtering column 3 and the catalytic column 4, and the two positioning rings are spaced apart.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas purification filter element structure, characterized in that: It includes a mounting hole plate, a bottom plate, a filter column and a catalytic column; one end of the filter column is arranged on the mounting hole plate, and the other end is arranged on the bottom plate; one end of the catalytic column is arranged on the bottom plate and is located in the middle of the bottom plate; the catalytic column is located in the filter column; The sides of the filter column and the catalytic column are arranged in a mesh structure; A hollow connecting column is provided at one end of the catalytic column, and a pore is provided on the side of the hollow connecting column; a guide cone is provided at one end of the hollow connecting column away from the catalytic column, and a flexible sealing ring is provided on the side of the hollow connecting column; The flexible sealing ring is a hollow truncated cone structure, with one end of the flexible sealing ring having a smaller cross section fixedly arranged on the outer surface of the hollow connecting column, and the other end having a larger cross section abutting against the inner wall of the filter column; It also includes an air blowing pipe, the output end of which is located above the guide cone.

2. A gas purification filter element structure according to claim 1, characterized in that: Two positioning rings are arranged between the filtering column and the catalytic column, and the two positioning rings are arranged at intervals.

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