High-precision and high-cleanliness metal filter

Abstract

The utility model discloses a high-precision and high-cleanliness metal filter, and relates to the technical field related to filters. The filter comprises a filter sleeve, an end cover I and an end cover II, wherein the end cover I is fixed at the top end of the filter sleeve; a connecting disc is fixed in the center of the bottom end of the end cover I; a sintered outer filter sleeve is fixed at the bottom end of the connecting disc; through the arrangement of the filter sleeve, the end cover I and the end cover II, the problems that the filtering of a metal filter is not smooth enough and the cleanliness of filtered air is not high enough are solved, and the metal filter has the advantages that the filtering of the metal filter is smoother, and the cleanliness and the filtering precision of the filtered air are higher.

Description

Technical Field

[0001] The utility model belongs to the technical field related to filters, and particularly relates to a high-precision and high-cleanliness metal filter. Background Art

[0002] In the high-end manufacturing industry, in order to blow and clean the surface of parts, clean high-pressure air is required. The clean high-pressure air needs to be filtered through a metal filter. The metal filter is a precision filter, mainly processed from high-efficiency filter materials such as stainless steel mesh, sintered mesh, sintered felt, and honeycomb core. They have different filtration effects, including general, high-efficiency, and precision, and are applicable to various industrial and scientific research fields. The characteristics of the metal filter include corrosion resistance and good air permeability, and it can effectively filter particulate matter in the air, such as dust, pollen, bacteria, etc. In addition, the metal filter usually has the characteristic of being reusable after cleaning and has a long service life, but it still has the following disadvantages in actual use:

[0003] During the operation of the metal filter, the air entering it directly passes through the filter screen dispersed on it, and after filtration, it is output. During the dispersion process, the air needs to be dispersed through the end cover of the filter element, resulting in a large resistance, causing more energy loss when the air flows to the filtration position and affecting the filtration smoothness;

[0004] During the operation of the metal filter, it directly filters through a single-layer filter element. After being filtered by the single-layer filter element, fine particles are likely to remain in the air, and the filtration is not sufficient, resulting in impurities being introduced into the working system. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-precision and high-cleanliness metal filter. By setting a filter sleeve, end cover one, and end cover two, the problems that the metal filter has insufficient filtration smoothness and the cleanliness of the filtered air is not high enough are solved.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a high-precision and high-cleanliness metal filter, including a filter sleeve, end cover one, and end cover two. The top of the filter sleeve is fixed with end cover one. The center of the bottom of end cover one is fixed with a connecting disc. The bottom of the connecting disc is fixed with a sintered outer filter sleeve. The bottom of the sintered outer filter sleeve is fixed with a filter cover. The bottom of the filter cover is fixed with a conical dispersion block. The bottom of the filter sleeve is fixed with end cover two. During operation, the sintered outer filter sleeve below end cover one is arranged in the filter sleeve. When the air passes through the filter sleeve, it is filtered by the sintered outer filter sleeve. Through the cooperation of end cover one and end cover two, the top and bottom of the filter sleeve are closed.

[0008] Furthermore, two hexagonal rotating blocks are fixed on the outer peripheral surface of the filter sleeve. The two hexagonal rotating blocks are respectively disposed at the upper and lower parts of the filter sleeve, and the filter sleeve provides a clamping function with installation tools such as wrenches through the hexagonal rotating blocks.

[0009] Furthermore, a fixed disk is fixed at the bottom end of the connection disk. A through hole is vertically and centrally formed through the fixed disk and the connection disk. A through hole is also vertically and centrally formed through the interior of the first end cap. An air outlet is fixed at the center of the top end of the first end cap. The sintered inner filter element is fixed on the connection disk by the fixed disk.

[0010] Furthermore, adsorption plates are fixedly arranged in an annular array on the inner wall of the sintered outer filter sleeve. A sintered inner filter sleeve is fixedly connected to the side of all the adsorption plates close to the central axis of the sintered outer filter sleeve. The sintered outer filter sleeve adsorbs dust particles in the air through the adsorption plates. After the filtered air is further filtered by the sintered inner filter sleeve, it is delivered to the through holes in the first end cap, the connection disk, and the filter disk.

[0011] Furthermore, the top end of the sintered inner filter sleeve is fixed outside the through hole at the bottom end of the fixed disk. The bottom ends of the sintered inner filter sleeve and the adsorption plates are jointly fixed to the top end of the filter cover, so that the bottom end of the sintered inner filter sleeve is sealed during operation.

[0012] Furthermore, a through hole is vertically and centrally formed through the interior of the second end cap. An air inlet is fixed outside the through hole at the bottom end of the second end cap. External threads are provided on the peripheries of the air inlet and the air outlet. The second end cap fixes the air inlet on it, and the external threads on the air inlet are communicated with a pipeline for conveying high-pressure air outside.

[0013] The utility model has the following beneficial effects:

[0014] By arranging the filter sleeve and the first end cap, the utility model solves the problem of unsmooth filtering of the metal filter. During operation, high-pressure air is conveyed through the air inlet to the through hole on the second end cap, and then conveyed to the filter sleeve through the through hole. The air is evenly dispersed into the inner space of the filter sleeve on the periphery of the sintered outer filter sleeve through the conical dispersion block, so that the air is evenly filtered through the sintered outer filter sleeve, making the filtering of the metal filter smoother during operation.

[0015] The utility model solves the problem that the cleanliness of the air after being filtered by a metal filter is not high enough by setting a filter sleeve, a first end cap and a second end cap. After the air is conveyed into the air inlet, it is then conveyed into the through holes on the second end cap, and then conveyed into the filter sleeve through the through holes. After being filtered by the sintered outer filter sleeve in the filter sleeve, it is adsorbed by the adsorption plate, and after adsorption, it is filtered by the sintered inner filter sleeve, and then conveyed into the through holes on the first end cap, the connecting plate and the fixing plate, and then conveyed into the air outlet, and then conveyed into the pipeline using clean air through the air outlet. Through a purification process of two-stage filtration and one-stage adsorption, the filtering accuracy of the metal filter is higher, and the cleanliness of the filtered air is higher. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a three-dimensional view of the assembly structure of a high-precision and high-cleanliness metal filter;

[0018] Figure 2 It is a three-dimensional view of the filter sleeve structure;

[0019] Figure 3 It is a three-dimensional view of the first end cap structure;

[0020] Figure 4 It is a three-dimensional view of the connecting plate structure;

[0021] Figure 5 It is a three-dimensional view of the sintered outer filter sleeve structure;

[0022] Figure 6 It is a three-dimensional view of the second end cap structure.

[0023] Reference Signs:

[0024] 1. Filter sleeve; 101. Hexagonal rotating block; 2. First end cap; 201. Connecting plate; 2011. Through hole; 2012. Fixing plate; 202. Sintered outer filter sleeve; 2021. Adsorption plate; 2022. Sintered inner filter sleeve; 203. Air outlet; 204. Filter cover; 205. Conical dispersion block; 3. Second end cap; 301. Air inlet; 302. External thread. Detailed Embodiment

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention. Specific Embodiment 1

[0026] Please refer to Figures 1-5 , the present invention is a high-precision and high-cleanliness metal filter, which includes a filter sleeve 1, an end cap 1 2 and an end cap 2 3. The top end of the filter sleeve 1 is fixed with an end cap 1 2. The structure in the sintered outer filter sleeve 202 connected by the end cap 1 2 is installed therein. The two ends of the filter sleeve are closed by the end cap 1 2 and the end cap 2 3. The central bottom end of the end cap 1 2 is fixed with a connection plate 201, and the outer filter sleeve is fixed thereon through the connection plate 201. The bottom end of the connection plate 201 is fixed with a sintered outer filter sleeve 202. The air entering the filter sleeve 1 is preliminarily filtered through the outer filter sleeve. The bottom end of the sintered outer filter sleeve 202 is fixed with a filter cover 204, and the bottom end of the sintered outer filter sleeve 202 is closed through the filter cover 204. The bottom end of the filter cover 204 is fixed with a conical dispersion block 205, and the airflow entering the filter sleeve 1 is quickly dispersed to the periphery of the sintered outer filter sleeve 202 through the conical dispersion block 205. The bottom end of the filter sleeve 1 is fixed with an end cap 2 3, and the bottom end of the filter sleeve 1 is closed through the end cap 2 3.

[0027] Specifically, two hexagonal rotating blocks 101 are fixed on the outer peripheral surface of the filter sleeve 1. The two hexagonal rotating blocks 101 are respectively located in the upper and lower parts of the filter sleeve 1. When the filter sleeve 1 is disassembled and assembled, the hexagonal rotating blocks 101 provide a function of being clamped with a wrench.

[0028] Furthermore, the bottom end of the connection plate 201 is fixed with a fixed plate 2012. A through hole 2011 is vertically and centrally penetrated through the fixed plate 2012 and the connection plate 201 inside. A through hole 2011 is also vertically and centrally penetrated through the inside of the end cap 1 2. The central top end of the end cap 1 2 is fixed with an air outlet 203. The sintered inner filter sleeve 2022 is fixed below the connection plate 201 through the fixed plate 2012. The connection plate 201, the fixed plate 2012 and the end cap 1 2 are communicated with the air outlet 203 through the through hole 2011. The purified air is discharged into the pipeline for use through the air outlet 203.

[0029] It should be noted that there may be some inaccuracies in the translation due to the lack of clear context for some parts. You can further adjust and optimize according to the actual situation.The operation process of this embodiment is as follows: During operation, first connect the air outlet 203 above the end cap 2 to the pipeline that needs to use clean air externally, and connect the air inlet 301 to the pipeline that conveys high-pressure air externally. At this time, the high-pressure air is conveyed through the air inlet 301 into the through hole 2011 on the end cap 3, and then conveyed through the through hole 2011 into the filter sleeve 1. The air is evenly dispersed into the inner space of the filter sleeve 1 on the circumferential side of the sintered outer filter sleeve 202 through the conical dispersion block 205, so that the air is evenly filtered through the sintered outer filter sleeve 202. Specific Embodiment Two

[0030] Please refer to Figures 1-6 , on the basis of Specific Embodiment One, adsorption plates 2021 are fixedly arranged on the inner wall of the sintered outer filter sleeve 202 in an annular array. A sintered inner filter sleeve 2022 is fixedly arranged on one side of all the adsorption plates 2021 close to the central axis of the sintered outer filter sleeve 202. The filtered air on the sintered outer filter sleeve 202 further adsorbs the particles in the air through the adsorption plates 2021, and then after further filtration through the sintered inner filter sleeve 2022, it is conveyed to the through hole 2011 on the fixed disk 2012 and then into the through hole 2011 on the connection disk 201.

[0031] Specifically, the top end of the sintered inner filter sleeve 2022 is fixed outside the through hole 2011 at the bottom end of the fixed disk 2012, and the bottom ends of the sintered inner filter sleeve 2022 and the adsorption plates 2021 are jointly fixed to the top end of the filter cover 204. The sintered inner filter sleeve 2022 and the adsorption plates 2021 are fixed on the filter cover 204, so that during operation, the bottom end of the sintered inner filter sleeve 2022 is closed.

[0032] Furthermore, a through hole 2011 is vertically and centrally penetrated inside the end cap 3. An air inlet 301 is fixed outside the through hole 2011 at the bottom end of the end cap 3. External threads 302 are provided on the circumferences of the air inlet 301 and the exhaust port. The end cap 3 makes the air inlet 301 communicate with the filter sleeve 1 through the through hole 2011. By threadedly connecting the air inlet 301 with the pipeline joint that conveys high-pressure air, after the air is conveyed into the air inlet 301, it is then conveyed into the through hole 2011 on the end cap 3 and then into the filter sleeve 1 through the through hole 2011.

[0033] The operation process of this embodiment is as follows: The second end cap 3 enables the air inlet 301 to communicate with the filter sleeve 1 through the through hole 2011, and is threadedly connected to the pipeline joint for conveying high-pressure air through the air inlet 301. After the air is conveyed into the air inlet 301, it is then conveyed into the through hole 2011 on the second end cap 3, and then conveyed into the filter sleeve 1 through the through hole 2011. After being filtered by the sintered outer filter sleeve 202 in the filter sleeve 1, it is adsorbed by the adsorption plate 2021, and after adsorption, it is filtered by the sintered inner filter sleeve 2022 and then conveyed into the through holes 2011 on the first end cap 2, the connecting plate 201, and the fixing plate 2012, and then conveyed into the air outlet 203, and is conveyed into the pipeline using clean air through the air outlet 203.

[0034] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0035] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not elaborate on all details and do not limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A high-precision, high-cleanliness metal filter, comprising a filter sleeve (1), an end cap 1 (2) and an end cap 2 (3), characterized in that: An end cap 1 (2) is fixed to the top end of the filter sleeve (1), a connecting plate (201) is fixed to the center of the bottom end of the end cap 1 (2), a sintered outer filter sleeve (202) is fixed to the bottom end of the connecting plate (201), a filter cover (204) is fixed to the bottom end of the sintered outer filter sleeve (202), a conical dispersion block (205) is fixed to the bottom end of the filter cover (204), and an end cap 2 (3) is fixed to the bottom end of the filter sleeve (1).

2. A high-precision, high-cleanliness metal filter according to claim 1, characterized in that: Two hexagonal rotating blocks (101) are fixed to the outer peripheral surface of the filter sleeve (1), and the two hexagonal rotating blocks (101) are respectively arranged at the upper part and the lower part of the filter sleeve (1).

3. A high-precision, high-cleanliness metal filter according to claim 1, characterized in that: A fixing plate (2012) is fixed at the bottom end of the connecting plate (201), a through hole (211) is vertically provided in the center of the fixing plate (2012) and the connecting plate (201), a through hole (211) is also vertically provided in the center of the end cover (2), and an air outlet (203) is fixed at the center of the top end of the end cover (2).

4. A high-precision, high-cleanliness metal filter according to claim 3, characterized in that: Adsorption plates (2021) are fixed in a ring-shaped array on the inner wall of the sintered outer filter sleeve (202), and a sintered inner filter sleeve (222) is commonly fixed on one side of all the adsorption plates (221) close to the central axis of the sintered outer filter sleeve (202).

5. A high-precision, high-cleanliness metal filter according to claim 4, characterized in that: The top end of the sintered inner filter sleeve (2022) is fixed to the outside of the through hole (2011) at the bottom end of the fixed plate (2012), and the bottom ends of the sintered inner filter sleeve (2022) and the adsorption plate (2021) are jointly fixed to the top end of the filter cover (204).

6. A high-precision, high-cleanliness metal filter according to claim 3, characterized in that: A through hole (2011) is vertically provided in the center of the interior of the second end cover (3), an air inlet (301) is fixed outside the through hole (2011) at the bottom of the second end cover (3), and external threads (302) are provided around the air inlet (301) and the air outlet.

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