Multi-layer structure of stainless steel filter screen

Abstract

The utility model relates to the technical field of stainless steel filter screens, in particular to a stainless steel filter screen multilayer structure, which comprises a multilayer filter screen piece, a sheath and an air cushion, the multilayer filter screen piece comprises a plurality of filter screen main bodies, the plurality of filter screen main bodies are sequentially stacked, and two adjacent filter screens are fixed by adopting energy storage welding. The wrapping sleeve comprises two first stainless steel plates and two first boron nitride layers, the two first boron nitride layers are arranged on the corresponding first stainless steel plates respectively, the multiple layers of filter screen pieces make contact with the two first boron nitride layers, and the air cushion comprises two second stainless steel plates and two second boron nitride layers; the two second boron nitride layers are respectively arranged on the corresponding second stainless steel plates, and the two second boron nitride layers are in contact with each other, so that the problems that a stainless steel filter screen in the prior art is mostly of a single-layer structure, the single-layer structure is not durable enough in a partial high-strength or high-pressure working environment, and the service life of the stainless steel filter screen is influenced are solved. And the filter screen may be deformed or damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel filter screens, in particular to a stainless steel filter screen multilayer structure. Background Art

[0002] Stainless steel is a metal material with stainless and corrosion resistance as its main characteristics, with a chromium content of at least 10.5% and a carbon content of no more than 1.2%. It includes not only stainless steel resistant to weak corrosive media such as air, steam, and water, but also acid-resistant steel resistant to chemical corrosive media (acids, alkalis, salts, etc.). Stainless steel is widely used in many industries with its unique performance advantages and has become an indispensable and important material in modern society, such as stainless steel filter mesh. The characteristics of stainless steel filter mesh include acid resistance, alkali resistance, high temperature resistance, strong tensile strength and wear resistance, which makes the application field of stainless steel filter mesh also very wide, such as mud mesh in the petroleum industry, screen mesh in the chemical fiber industry, pickling mesh in the electroplating industry, etc.

[0003] Most existing stainless steel filters are single-layer structures, which makes them not durable enough in some high-intensity or high-pressure working environments, and the filters may be deformed or damaged. Utility Model Content

[0004] The purpose of the utility model is to provide a stainless steel filter with a multi-layer structure, aiming to solve the technical problem that the stainless steel filter in the prior art is mostly a single-layer structure, which makes it not durable enough in some high-intensity or high-pressure working environments, and the filter may be deformed or damaged.

[0005] To achieve the above-mentioned purpose, the utility model adopts a stainless steel filter multi-layer structure, including a multi-layer filter element, a sleeve and an air cushion, the multi-layer filter element includes a plurality of filter bodies, the plurality of filter bodies are stacked in sequence, and two adjacent filter bodies are fixed by energy storage welding, the sleeve includes two first stainless steel plates and two first boron nitride layers, the two first boron nitride layers are respectively arranged on the corresponding first stainless steel plates, and the multi-layer filter element is in contact with the two first boron nitride layers, the air cushion includes two second stainless steel plates and two second boron nitride layers, the two second boron nitride layers are respectively arranged on the corresponding second stainless steel plates, and the two second boron nitride layers are in contact with each other.

[0006] Among them, the stainless steel filter multilayer structure also includes a guide block and a tough ridge, the air cushion has a guide groove, the tough ridge is placed in the corresponding guide groove, the guide block is fixedly connected to the corresponding first stainless steel plate, and the guide block is adapted to the corresponding guide groove and contacts with the corresponding tough ridge.

[0007] Wherein, the air cushion is provided with through holes, and the multi-layer filter element is placed behind the two first stainless steel plates, and the two first stainless steel plates are welded.

[0008] Wherein, the stainless steel filter multilayer structure further includes an antistatic coating, and the antistatic coating is arranged on a side of the package away from the air cushion.

[0009] Wherein, the stainless steel filter multilayer structure further includes an anti-corrosion layer, and the anti-corrosion layer is arranged on a side of the anti-static coating away from the sleeve.

[0010] Wherein, the stainless steel filter multilayer structure further includes a protective member and a tearing member, wherein the protective member is arranged on the antistatic coating, and the tearing member is connected to the protective member.

[0011] The utility model discloses a stainless steel filter multilayer structure. When it is used, firstly, a plurality of filter main bodies are stacked in sequence, and two adjacent filter bodies are fixed by energy storage welding. Then, two first boron nitride layers are sprayed on the corresponding first stainless steel plates respectively. The multilayer filter element obtained by the energy storage welding is placed between the two first boron nitride layers. The two first stainless steel plates are welded and sealed along the circumference. Two second boron nitride layers are sprayed on the corresponding second stainless steel plates respectively. After the two second boron nitride layers are in contact and aligned, the second boron nitride layers are welded and sealed along the circumference. The two second stainless steel plates are sealed on all sides by argon arc welding, and the through holes are reserved. Then, the air tube is welded at the through holes, and the air tube is welded between the two first stainless steel plates. Then, the cover is placed on the air cushion, placed on the mold, and put into a heating furnace for diffusion welding. After the diffusion welding is completed, the air tube is removed to obtain the multi-layer structure of the stainless steel filter. In this way, the problem that the stainless steel filter in the prior art is mostly a single-layer structure, which makes it not durable enough in some high-intensity or high-pressure working environments, and the filter may be deformed or damaged is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0014] Figure 2 The utility model Figure 1 A magnified view of the local result at point A.

[0015] Figure 3 It is a schematic structural diagram of the first embodiment of the utility model when it is placed into a mold before diffusion welding.

[0016] Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0017] 101-guide block, 102-tough ridge, 103-filter body, 104-first stainless steel plate, 105-first boron nitride layer, 106-second stainless steel plate, 107-second boron nitride layer, 108-guide groove, 201-antistatic coating, 202-anticorrosion layer, 203-protective member, 204-tear-off member. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The first embodiment of the present application is:

[0020] See also Figure 1 to Figure 3 ,in Figure 1 It is a structural schematic diagram of the first embodiment of the utility model. Figure 2 The utility model Figure 1 A local result enlarged diagram, Figure 3 It is a schematic structural diagram of the first embodiment of the utility model when it is placed into a mold before diffusion welding.

[0021] The utility model provides a stainless steel filter multilayer structure, including a multilayer filter element, a bag cover, an air cushion, a guide block 101 and a tough protrusion 102, the multilayer filter element includes a plurality of filter bodies 103, the bag cover includes two first stainless steel plates 104 and two first boron nitride layers 105, the air cushion includes two second stainless steel plates 106 and two second boron nitride layers 107, the above-mentioned scheme solves the technical problem that the stainless steel filter in the prior art is mostly a single-layer structure, the single-layer structure makes it not durable enough in some high-intensity or high-pressure working environments, and the filter may be deformed or damaged.

[0022] According to this specific embodiment, a plurality of filter bodies 103 are stacked in sequence, and two adjacent filter bodies are fixed by energy storage welding, two first boron nitride layers 105 are respectively arranged on the corresponding first stainless steel plates 104, and the multi-layer filter element is in contact with the two first boron nitride layers 105, and two second boron nitride layers 107 are respectively arranged on the corresponding second stainless steel plates 106, and the two second boron nitride layers 107 are in contact with each other;

[0023] The air cushion is provided with through holes, and the multi-layer filter element is placed on the two first stainless steel plates 104, and the two first stainless steel plates 104 are welded;

[0024] In specific use, firstly, a plurality of filter bodies 103 are stacked in sequence, and two adjacent filter bodies are fixed by energy storage welding, and then two first boron nitride layers 105 are respectively sprayed on the corresponding first stainless steel plates 104, and the multi-layer filter element obtained by the energy storage welding is placed between the two first boron nitride layers 105, and the two first stainless steel plates 104 are welded and sealed along the circumference, and two second boron nitride layers 107 are respectively sprayed on the corresponding second stainless steel plates 106, and the two second boron nitride layers 107 are contacted and aligned, and then the second boron nitride layers 107 are welded and sealed along the circumference, and then the second boron nitride layers 107 are respectively sprayed on the corresponding second stainless steel plates 106, and the second boron nitride layers 107 are contacted and aligned, and then the second boron nitride layers 107 are welded and sealed along the circumference, and then the second boron nitride layers 107 are respectively sprayed on the corresponding second stainless steel plates 106, and the second boron nitride layers 107 are contacted and aligned, and then the second boron nitride layers 107 are welded and sealed along the circumference, and then the second boron nitride layers 107 are respectively sprayed on the corresponding second stainless steel plates 106, and then ...5 are sprayed and coated on the corresponding first stainless steel plates 104, and then the second boron nitride layers 1 The two second stainless steel plates 106 are sealed on all sides by argon arc welding, and the through holes are reserved. Then, the air tube is welded at the through holes, and the air tube is welded between the two first stainless steel plates 104. Thereafter, the cover is placed on the air cushion, and placed on the mold and then put into a heating furnace for diffusion welding. After the diffusion welding is completed, the air tube is removed to obtain the multi-layer structure of the stainless steel filter. In this way, the problem that the stainless steel filter in the prior art is mostly a single-layer structure, which makes it not durable enough in some high-intensity or high-pressure working environments, and the filter may be deformed or damaged is solved.

[0025] Among them, the air cushion has a guide groove 108, the tough protrusion 102 is placed in the corresponding guide groove 108, the guide block 101 is fixedly connected to the corresponding first stainless steel plate 104, and the guide block 101 is adapted to the corresponding guide groove 108 and contacts with the corresponding tough protrusion 102. When the cover is stacked with the air cushion, the guide block 101 is aligned with the guide groove 108 and the cover is pushed. The cover drives the guide block 101 to move so that the guide block 101 contacts the tough protrusion 102. The tough protrusion 102 has toughness, so that the tough protrusion 102 always abuts against the guide block 101. In this way, it is more convenient and stable to stack the cover and the air cushion.

[0026] A stainless steel filter multilayer structure of the present embodiment is used. When it is used, first, a plurality of filter bodies 103 are stacked in sequence, and two adjacent filter bodies are fixed by energy storage welding. Then, two first boron nitride layers 105 are sprayed on the corresponding first stainless steel plates 104, and the multilayer filter element obtained by energy storage welding is placed between the two first boron nitride layers 105. The two first stainless steel plates 104 are welded and sealed along the circumference. Two second boron nitride layers 107 are sprayed on the corresponding second stainless steel plates 106, and the two second boron nitride layers are sprayed on the corresponding second stainless steel plates 106. After 107 is in contact and aligned, the two second stainless steel plates 106 are sealed by argon arc welding around the four sides, and the through hole is reserved. Then, the inflation tube is welded at the through hole, and the inflation tube is welded between the two first stainless steel plates 104. After that, the sleeve is placed on the air cushion, and placed on the mold and put into the heating furnace for diffusion welding. After the diffusion welding is completed, the inflation tube is removed to obtain the multi-layer structure of the stainless steel filter. In this way, the technical problem that the stainless steel filter in the prior art is mostly a single-layer structure, which makes it not durable enough in some high-intensity or high-pressure working environments, and the filter may be deformed or damaged is solved.

[0027] The second embodiment of the present application is:

[0028] Based on the first embodiment, please refer to Figure 4 , Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0029] The utility model provides a stainless steel filter screen multi-layer structure, which also includes an antistatic coating 201, an anti-corrosion layer 202, a protective piece 203 and a tearing piece 204.

[0030] According to this specific embodiment, the antistatic coating 201 is arranged on the side of the package away from the air cushion. When it is used specifically, the antistatic coating 201 can enhance the antistatic effect of the multi-layer structure of the stainless steel filter.

[0031] The anti-corrosion layer 202 is arranged on a side of the anti-static coating 201 away from the sheath, and the anti-corrosion layer 202 can enhance the anti-corrosion effect of the multi-layer structure of the stainless steel filter.

[0032] Secondly, the protective piece 203 is arranged on the anti-static coating 201, and the tear-off piece 204 is connected to the protective piece 203. The protective piece 203 is pasted on the stainless steel filter multi-layer structure to protect the stainless steel filter multi-layer structure, such as dust prevention. When in use, the protective piece 203 can be torn off by the tear-off piece 204.

[0033] A stainless steel filter multilayer structure is used in this embodiment. When it is used specifically, the antistatic coating 201 can enhance the antistatic effect of the stainless steel filter multilayer structure, the anti-corrosion layer 202 can enhance the anti-corrosion effect of the stainless steel filter multilayer structure, and the protective member 203 pasted on the stainless steel filter multilayer structure can protect the stainless steel filter multilayer structure, such as dustproofing. When in use, the protective member 203 can be torn off by the tearing member 204.

[0034] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A stainless steel filter multilayer structure, characterized in that: It includes a multi-layer filter mesh component, a cover and an air cushion. The multi-layer filter mesh component includes multiple filter mesh bodies, which are stacked in sequence, and two adjacent filter meshes are fixed by energy storage welding. The cover includes two first stainless steel plates and two first boron nitride layers, which are respectively arranged on the corresponding first stainless steel plates. The multi-layer filter mesh component is in contact with the two first boron nitride layers. The air cushion includes two second stainless steel plates and two second boron nitride layers, which are respectively arranged on the corresponding second stainless steel plates, and the two second boron nitride layers are in contact with each other.

2. The stainless steel filter screen multilayer structure according to claim 1, characterized in that: The stainless steel filter multi-layer structure also includes a guide block and a tough protrusion. The air cushion has a guide groove. The tough protrusion is placed in the corresponding guide groove. The guide block is fixedly connected to the corresponding first stainless steel plate, and the guide block is adapted to the corresponding guide groove and contacts the corresponding tough protrusion.

3. The stainless steel filter screen multilayer structure according to claim 2, characterized in that: The air cushion is provided with through holes, and the multi-layer filter element is placed behind the two first stainless steel plates, and the two first stainless steel plates are welded together.

4. The stainless steel filter screen multilayer structure according to claim 3, characterized in that: The stainless steel filter multilayer structure further includes an antistatic coating, which is arranged on a side of the package away from the air cushion.

5. The stainless steel filter multilayer structure according to claim 4, characterized in that: The stainless steel filter mesh multi-layer structure further includes an anti-corrosion layer, which is arranged on a side of the anti-static coating away from the sheath.

6. The stainless steel filter multilayer structure according to claim 5, characterized in that: The stainless steel filter multilayer structure further includes a protective piece and a tearing piece. The protective piece is arranged on the antistatic coating, and the tearing piece is connected to the protective piece.

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