High-temperature-resistant and corrosion-resistant efficient filter

Abstract

The utility model relates to the technical field of filters, in particular to a high-temperature-resistant and corrosion-resistant efficient filter which comprises a filter body, three sealing grooves are formed in the inner wall of the filter body in parallel, and an outer-layer filter screen, a middle-layer filter screen and an inner-layer filter screen are sequentially arranged in the three sealing grooves from outside to inside. Three layers of filter screens form a multi-layer filter screen structure in the high-efficiency filter, the multi-layer filter screen structure can form a layer-by-layer protection effect on the interior of the high-efficiency filter, particulate matters are filtered out layer by layer, the filtering burden of the internal filter screens is relieved, high-temperature and corrosive substances can be dispersed into different filter screen layers by utilizing the multi-layer filter screen structure, and the high-efficiency filter has the advantages of being simple in structure and convenient to use. The pressure and influence borne by the single-layer filter screen are reduced, so that the internal filter screen is not influenced by the external environment, the damage risk of the single-layer filter screen is reduced, the overall high-temperature resistance and corrosion resistance are improved, the stability and durability of the efficient filter are improved, and the service life of the efficient filter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a high-efficiency filter that is resistant to high temperatures and corrosion. Background Art

[0002] High-efficiency filters are mainly used to capture particulate dust larger than 0.5μm and various suspended matter. The purifier is mainly composed of two parts: the filter element and the shell. The basic requirements are high filtration efficiency, low flow resistance, and continuous use for a long time to reduce the cost of later consumables.

[0003] In the process of using existing high-efficiency filters, in order to reduce their production costs, most of the high-efficiency filters generally use single-layer filter screens with the same structure to filter them. However, single-layer filter screens usually cannot provide sufficient high temperature resistance and corrosion resistance, which makes the single-layer filter screen susceptible to heat and corrosion, causing the filter screen to deform and be damaged, thereby losing the filtering effect, resulting in a decrease in the overall performance of the high-efficiency filter. When the single-layer filter screen is damaged, the filter screen needs to be replaced frequently, which increases its maintenance cost and workload. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a high-efficiency filter that is resistant to high temperature and corrosion.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-efficiency filter that is resistant to high temperature and corrosion comprises a filter body, wherein the inner wall of the filter body is provided with three sealing grooves in parallel, wherein an outer filter screen, a middle filter screen and an inner filter screen are sequentially arranged in the three sealing grooves from the outside to the inside, wherein a first isolation layer is arranged on the top of the outer walls of the outer filter screen, the middle filter screen and the inner filter screen, and a second isolation layer is arranged on the bottom of the outer walls of the outer filter screen, the middle filter screen and the inner filter screen, and wherein the first isolation layer and the second isolation layer are arranged in layers alternately from the outside to the inside.

[0007] Preferably, the outer wall of the filter body is symmetrically provided with mounting holes, and the four corners of the inner walls of the first isolation layer and the second isolation layer are fixedly connected with connecting blocks, and the outer walls of the outer filter screen, the middle filter screen, the inner filter screen and the connecting block plates are all provided with positioning holes, and the positioning holes are connected with the mounting holes, and a center positioning rod is arranged in the mounting hole, and the center positioning rod is connected and fixed with the first isolation layer, the outer filter screen, the second isolation layer, the middle filter screen and the inner filter screen in sequence through the positioning holes.

[0008] Preferably, the first isolation layer is made of a stainless steel filter layer, and the second isolation layer is made of a ceramic filter layer.

[0009] Preferably, the outer walls of the outer filter screen, the middle filter screen and the inner filter screen are all provided with sealing gaskets, and the outer filter screen, the middle filter screen and the inner filter screen are sealed and fixed in the sealing groove through the sealing gaskets.

[0010] Preferably, the outer surface of the filter body is coated with a PTFE coating.

[0011] The beneficial effects of the utility model are:

[0012] A multi-layer filter structure is formed in the high-efficiency filter through three-layer filter screens. The multi-layer filter screen structure can form a layered protection effect for the interior of the high-efficiency filter, and filter out particulate matter layer by layer, reducing the filtering burden of the internal filter screen. The multi-layer filter screen structure can disperse high temperature and corrosive substances into different filter screen layers, reducing the pressure and influence on the single-layer filter screen, so that the internal filter screen is not affected by the external environment, reducing the risk of damage to the single-layer filter screen, improving the overall high temperature and corrosion resistance, improving the stability and durability of the high-efficiency filter, and extending its service life.

[0013] By alternately adding a high-temperature resistant isolation layer and a corrosion-resistant isolation layer between the multiple layers of filter screens in the high-efficiency filter, the two isolation layers complement each other to form an alternating multi-level protection mechanism, which prevents high temperature and corrosive substances from directly contacting the inside of the multi-layer filter screen, reduces corrosion and wear on the internal filter screen, improves the high-efficiency filter's resistance to high temperature and corrosive substances, ensures the normal operation of the high-efficiency filter in harsh environments, increases the structural strength of the high-efficiency filter, and further improves the overall performance of the high-efficiency filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency filter that is resistant to high temperature and corrosion and proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a filter body of a high-efficiency filter that is resistant to high temperature and corrosion and proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure of the outer filter screen, the middle filter screen and the inner filter screen of a high-efficiency filter that is resistant to high temperature and corrosion and proposed by the utility model;

[0017] Figure 4 The utility model discloses an exploded schematic diagram of the connection structure of the outer filter screen, the middle filter screen and the inner filter screen of a high-efficiency filter that is resistant to high temperature and corrosion.

[0018] In the figure:

[0019] 1. Filter body; 2. Sealing groove; 3. Outer filter screen; 4. Middle filter screen; 5. Inner filter screen; 6. First isolation layer; 7. Second isolation layer; 8. Mounting hole; 9. Connecting plate; 10. Positioning hole; 11. Center positioning rod; 12. Sealing gasket. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0022] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0023] Example:

[0024] Reference Figure 1-4 A high-efficiency filter that is resistant to high temperature and corrosion comprises a filter body 1. Three sealing grooves 2 are opened in parallel on the inner wall of the filter body 1. An outer filter screen 3, a middle filter screen 4 and an inner filter screen 5 are arranged in sequence from the outside to the inside in the three sealing grooves 2. A first isolation layer 6 is arranged on the top of the outer wall of the outer filter screen 3, the middle filter screen 4 and the inner filter screen 5. A second isolation layer 7 is arranged on the bottom of the outer wall of the outer filter screen 3, the middle filter screen 4 and the inner filter screen 5. The first isolation layer 6 and the second isolation layer 7 are arranged in alternating layers from the outside to the inside.

[0025] The outer wall of the filter body 1 is symmetrically provided with mounting holes 8, and the four corners of the inner walls of the first isolation layer 6 and the second isolation layer 7 are fixedly connected with connecting blocks 9. The outer filter screen 3, the middle filter screen 4, the inner filter screen 5 and the outer walls of the connecting block plate 9 are all provided with positioning holes 10, and the positioning hole 10 is connected with the mounting hole 8. A center positioning rod 11 is arranged in the mounting hole 8, and the center positioning rod 11 is connected and fixed with the first isolation layer 6, the outer filter screen 3, the second isolation layer 7, the middle filter screen 4, and the inner filter screen 5 in sequence through the positioning hole 10.

[0026] The first isolation layer 6 is a filter layer made of stainless steel, and the second isolation layer 7 is a filter layer made of ceramic.

[0027] The outer walls of the outer filter screen 3 , the middle filter screen 4 , and the inner filter screen 5 are all provided with sealing gaskets 12 , and the outer filter screen 3 , the middle filter screen 4 , and the inner filter screen 5 are sealed and fixed in the sealing groove 2 through the sealing gaskets 12 .

[0028] The outer surface of the filter body 1 is coated with a PTFE coating.

[0029] In this embodiment, three layers of parallel outer filter screen 3, middle filter screen 4 and inner filter screen 5 are sequentially arranged inside the filter body 1, so that the outer filter screen 3, middle filter screen 4 and inner filter screen 5 form a multi-layer filter screen structure, and the multi-layer filter screen structure forms a layer-by-layer protection effect for the filter body 1. The outer filter screen 3 can block large particles and coarse particles outside the filter body 1, and the middle filter screen 4 and the inner filter screen 5 are used to filter out particles layer by layer, thereby improving the filtering effect, reducing the blockage and damage to the internal filter screen, and reducing the burden of the middle filter screen 4 and the inner filter screen 5. At the same time, the multi-layer filter screen structure can disperse high temperature and corrosive substances into different filter screen layers, reducing the pressure and influence on the single-layer filter screen, so that the internal filter screen is not affected by the external environment. The risk of damage to the single-layer filter screen is reduced, and the overall high temperature resistance and corrosion resistance are improved.

[0030] By sequentially setting the first isolation layer 6 on the top surface of the outer filter 3, the middle filter 4 and the inner filter 5, and setting the second isolation layer 7 on the bottom surface, the first isolation layer 6 and the second isolation layer 7 are alternately arranged between the multi-layer filter screens, and the high temperature resistance of the first isolation layer 6 and the corrosion resistance of the second isolation layer 7 are used to complement each other to form an alternately arranged multi-level protection mechanism, which prevents high temperature and corrosive substances from directly contacting the inside of the multi-layer filter screen, reduces corrosion and wear of the internal filter screen, improves the resistance of the filter body 1 to high temperature and corrosive substances, ensures the normal operation of the filter body 1 in harsh environments, and improves the stability and durability of the filter body 1. At the same time, the first isolation layer 6, the outer filter screen 3, the second isolation layer 7, the middle filter screen 4, and the inner filter screen 5 are sequentially connected by the central positioning rod 11, which prevents the internal filter screen from being blocked or collapsed during the filtering process, maintains the shape and permeability of the internal filter screen, increases the structural strength of the entire filter body 1, extends the service life of the filter body 1, and reduces maintenance costs.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency filter that is resistant to high temperature and corrosion, comprising a filter body (1), characterized in that: The inner wall of the filter body (1) is provided with three sealing grooves (2) in parallel, and the three sealing grooves (2) are provided with an outer filter screen (3), a middle filter screen (4), and an inner filter screen (5) in sequence from the outside to the inside; the outer walls of the outer filter screen (3), the middle filter screen (4), and the inner filter screen (5) are all provided with a first isolation layer (6) at the top, and the outer walls of the outer filter screen (3), the middle filter screen (4), and the inner filter screen (5) are all provided with a second isolation layer (7) at the bottom; the first isolation layer (6) and the second isolation layer (7) are arranged in layers alternately from the outside to the inside.

2. A high-efficiency filter resistant to high temperature and corrosion according to claim 1, characterized in that: The outer wall of the filter body (1) is symmetrically provided with mounting holes (8); the inner walls of the first isolation layer (6) and the second isolation layer (7) are fixedly connected with connecting blocks (9) at four corners; the outer filter screen (3), the middle filter screen (4), the inner filter screen (5) and the outer walls of the connecting blocks (9) are all provided with positioning holes (10); the positioning holes (10) are communicated with the mounting holes (8); a central positioning rod (11) is arranged in the mounting hole (8); the central positioning rod (11) is connected and fixed to the first isolation layer (6), the outer filter screen (3), the second isolation layer (7), the middle filter screen (4) and the inner filter screen (5) in sequence through the positioning holes (10).

3. A high-efficiency filter resistant to high temperature and corrosion according to claim 1, characterized in that: The first isolation layer (6) is a filter layer made of stainless steel, and the second isolation layer (7) is a filter layer made of ceramic.

4. A high-efficiency filter resistant to high temperature and corrosion according to claim 1, characterized in that: The outer walls of the outer filter screen (3), the middle filter screen (4), and the inner filter screen (5) are all provided with sealing gaskets (12), and the outer filter screen (3), the middle filter screen (4), and the inner filter screen (5) are sealed and fixed in the sealing groove (2) via the sealing gaskets (12).

5. The high temperature and corrosion resistant high efficiency filter according to claim 1, characterized in that: The outer surface of the filter body (1) is coated with a PTFE coating.

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