Clean type gas filter

Abstract

The utility model discloses a clean type gas filter which comprises a mounting part and a filter pipe detachably arranged on the mounting part, a filter cavity is formed in the filter pipe in the axial direction in a penetrating mode, a hollow film is arranged in the filter cavity, gas pipe joints communicated with the filter pipe are fixedly arranged at the two axial ends of the filter pipe respectively, and the filter pipe is a transparent pipe body or is provided with a transparent visible section. According to the clean type gas filter, gas filtration is achieved through the hollow membrane, the multiple micropores are formed in the membrane wall of the hollow membrane, the filtering contact area can be increased, the pollutant containing amount of the filter is increased, the service life of the filter is prolonged, the filtering precision is higher, the pressure loss of flowing gas is smaller, and the filtering effect is better. Meanwhile, the filter pipe adopts a visual design, the use state of the hollow membrane can be intuitively obtained through the filter pipe, the replacement state of the filter is further judged in time, and the stability of the filtering effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a clean gas filter. Background Art

[0002] Modern manufacturing industry is developing in the direction of high-precision and high-tech, and the requirements for the production environment are getting higher and higher. Cleanliness, anti-static, constant temperature and humidity, etc. have an increasingly important impact on product quality.

[0003] In existing applications, filtered gases are usually used to adjust the cleanliness, static electricity, temperature and humidity of the environment. For example, filtered compressed air and nitrogen are used to eliminate static electricity in precision instruments, clean equipment and circuit boards, and purge and cool equipment.

[0004] Most existing gas filtration solutions use membrane filtration. Due to the high space requirements of the filter and the low dirt holding capacity of the filter element, the process status of the filter cannot be observed when the filter element fails. At the same time, the replacement of the filter is relatively inconvenient, which affects the gas filtration efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides a clean gas filter which has a simple structure, is convenient to load and unload, and has strong filtering stability.

[0006] In order to achieve the above objectives, the utility model is implemented through the following technical solutions.

[0007] The present application provides a clean gas filter, comprising:

[0008] Mounting parts;

[0009] The filter tube is detachably mounted on the mounting member and has a filter cavity extending therethrough in the axial direction;

[0010] Wherein, a hollow membrane is provided in the filter cavity, and air pipe joints communicating with the filter cavity are fixedly provided at both axial ends of the filter tube;

[0011] The filter tube is specifically configured as a transparent tube body, or the filter tube is provided with a transparent visible section at a position corresponding to the hollow membrane.

[0012] It is further defined that in the above-mentioned clean gas filter, the mounting member comprises a base plate and at least one set of clamping components fixedly disposed on the base plate;

[0013] Wherein, the filter tube can be clamped with the mounting piece through a clamping assembly.

[0014] It is further defined that, in the above-mentioned clean gas filter, the clamping assembly comprises two clamps fixedly arranged on the base plate and symmetrical about the filter tube axis, the clamps are provided with a guiding inclined surface at one end away from the base plate, and are provided with a limiting arc groove at one end close to the filter tube;

[0015] The guide slope is inclined toward a side away from the substrate and toward a side of the filter tube. The filter tube can abut against the guide slope and be clamped between the two limit arc grooves under the guidance of the guide slope.

[0016] It is further defined that, in the above-mentioned clean gas filter, a plurality of groups of the clamping components are provided on the base plate, and the plurality of groups of the clamping components are arranged in a linear array along the axial direction of the filter tube.

[0017] It is further defined that in the above-mentioned clean gas filter, two limiting convex rings are fixedly provided on the filter tube, and the two limiting convex rings are arranged in a linear array along the axial direction of the filter tube;

[0018] Wherein, when the mounting member and the filter tube are in a clamped state, the clamping assembly on the mounting member is located between two limiting convex rings, and the two limiting convex rings are respectively in clamping contact with corresponding positions.

[0019] It is further defined that, in the above-mentioned clean gas filter, at least one mounting hole is provided through the substrate;

[0020] The base plate can be fixedly connected to the external fixing frame by bolts through the mounting holes.

[0021] It is further defined that, in the above-mentioned clean gas filter, the air pipe joint is threadedly connected to the filter pipe and a delivery channel that can communicate with the filter chamber is axially penetrated.

[0022] It is further defined that, in the above-mentioned clean gas filter, the air pipe joint comprises a connecting portion and an end portion fixedly connected to the connecting portion;

[0023] The connecting portion is threadedly connected to the end of the filter tube, and is provided with a first through hole in the axial direction that can communicate with the filter chamber;

[0024] The end portion is threadedly connected to the inner wall of one end of the first through hole away from the filter tube, and a second through hole communicating with the first through hole is axially penetrated therethrough.

[0025] It is further defined that in the above-mentioned clean gas filter, a sealing ring is provided between the air pipe joint and the corresponding side end surface of the filter tube;

[0026] The sealing ring surrounds the filter cavity opening and abuts against the filter tube and the air pipe joint at two ends of the filter tube in the axial direction.

[0027] Further defined, in the above-mentioned clean gas filter, a first embedding groove surrounding the filter cavity opening is provided on the end surface of the filter tube close to the air pipe joint, and a second embedding groove capable of buckling with the first embedding groove is provided on the end surface of the air pipe joint close to the filter tube;

[0028] Wherein, when the first embedding groove and the second embedding groove are in a buckled state, the sealing ring is embedded in the first embedding groove and the second embedding groove, and abuts against the corresponding side inner walls of the first embedding groove and the second embedding groove at two axial ends of the filter tube.

[0029] The utility model has at least the following beneficial effects:

[0030] 1. Gas filtration is achieved through hollow membranes. Since there are multiple micropores on the membrane wall of the hollow membrane, it can not only increase the filtration contact area, increase the filter's dirt holding capacity, and extend the filter's service life, but also has higher filtration accuracy and smaller pressure loss of the flowing gas, thereby ensuring the purging effect of the output gas. At the same time, the filter tube adopts a visual design, through which the use status of the hollow membrane can be intuitively obtained, and then the replacement status of the filter can be timely judged to ensure the stability of the filtration effect;

[0031] 2. A clamping assembly that matches the filter tube is set on the mounting piece, and the filter tube is guided by a guiding slope, which effectively improves the efficiency of loading and unloading the filter tube on the mounting piece, so that the hollow membrane can be replaced in time after failure;

[0032] 3. After the filter tube and the mounting piece are connected by the clamping assembly, the filter tube can move relative to the mounting piece in the axial direction by the limiting convex ring abutting the buckle. When the filter tube performs gas filtering, the stability of the relative position of the mounting piece and the filter tube can be ensured;

[0033] 4. The air pipe joint and the filter tube are detachably connected. Based on the use requirements, air pipe joints of different specifications can be flexibly replaced on the filter tube, which further improves the practicality of the filter;

[0034] 5. The sealing ring abuts against the end face of the filter tube to achieve sealing, which can not only prevent gas leakage, but also does not occupy the gas flow cross-sectional area of ​​the filter chamber, thereby ensuring the gas filtering space. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of a clean gas filter according to an embodiment of the present application;

[0036] Figure 2 This is a schematic structural diagram of a "mounting member 100" in a clean gas filter according to an embodiment of the present application;

[0037] Figure 3 This is a cross-sectional view of the structure of the clean gas filter according to an embodiment of the present application;

[0038] Figure 4 This is an enlarged schematic diagram of the structure of the "seal ring 600" part of the clean gas filter in the embodiment of the present application;

[0039] Figure 5 It is a schematic diagram of the installation of the "hollow membrane 500" in the "filter cavity 220" in the clean gas filter of the embodiment of the present application.

[0040] Reference numerals

[0041] Mounting part 100, substrate 110, mounting hole 111, buckle 120, guide slope 121, limiting arc groove 122, filter tube 200, limiting convex ring 210, filter cavity 220, first embedding groove 230, connecting part 300, first through hole 310, second embedding groove 320, end head 400, second through hole 410, hollow membrane 500, sealing ring 600. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0043] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] The clean gas filter provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0045] like Figures 1 to 5 As shown, an embodiment of the present application provides a clean gas filter, including a mounting member 100 and a filter tube 200 detachably disposed on the mounting member 100 .

[0046] A filter cavity 220 is axially penetrated through the filter tube 200 , a hollow membrane 500 is arranged in the filter cavity 220 , and air pipe joints communicating with the filter cavity 220 are fixedly arranged at both axial ends of the filter tube 200 .

[0047] The filter tube 200 is specifically configured as a transparent tube body, or a transparent visible section is provided at a position corresponding to the hollow membrane 500 .

[0048] During operation, the mounting member 100 is mounted on the external fixed frame, the filter tube 200 is mounted on the mounting member 100 , the gas is input into the filter chamber 220 from the air pipe joint at one end of the filter tube 200 , and is filtered by the hollow membrane 500 in the filter chamber 220 and then output through the air pipe joint at the other end of the filter tube 200 .

[0049] In an embodiment of the present application, a clean gas filter as mentioned above is used to achieve gas filtration through a hollow membrane 500. Since the hollow membrane 500 has multiple micropores on its wall, it can not only increase the filtration contact area, increase the dirt holding capacity of the filter, and extend the service life of the filter, but also has higher filtration accuracy and smaller pressure loss of the flowing gas, thereby ensuring the purging effect of the output gas. At the same time, the filter tube 200 adopts a visual design, through which the use status of the hollow membrane 500 can be intuitively obtained, and then the replacement status of the filter can be timely judged to ensure the stability of the filtration effect.

[0050] In a preferred embodiment, Figure 1 As shown, the filter tube 200 can be snap-fitted with the mounting member 100 .

[0051] In a preferred embodiment, Figure 1 , Figure 2 As shown, the mounting member 100 includes a substrate 110 and at least one set of snap-fit ​​components disposed on the substrate 110 .

[0052] The clamping assembly includes two clamps 120 axially symmetrically arranged on the filter tube 200 and fixedly disposed on the base plate 110 . The clamp 120 has a guiding inclined surface 121 at one end away from the base plate 110 and a limiting arc groove 122 on the end surface close to the filter tube 200 .

[0053] The guide slope 121 is inclined away from the substrate 110 and toward the filter tube 200 . The filter tube 200 can abut against the guide slope 121 and be clamped between the two limiting arc grooves 122 of the clamping assembly under the guidance of the guide slope 121 .

[0054] In an embodiment of the present application, the above-mentioned clean gas filter is adopted, a clamping assembly cooperating with the filter tube 200 is provided on the mounting member 100, and the filter tube 200 is guided by a guide slope 121, thereby effectively improving the loading and unloading efficiency of the filter tube 200 on the mounting member 100, so that the hollow membrane 500 can be replaced in time after failure.

[0055] It is understandable that the arrangement of the snap-on assembly is not limited to the above-mentioned one. For example, a snap plate can be arranged on the filter tube 200, and a snap hole cooperating with the snap plate can be arranged on the base plate 110. As long as the filter tube 200 can be detachably connected to the mounting member 100, it will not be elaborated here.

[0056] In a preferred embodiment, Figure 1 , Figure 2 As shown, a plurality of groups of the clamping components are provided on the base plate 110 , and the plurality of groups of the clamping components are arranged in a linear array along the axial direction of the filter tube 200 .

[0057] It is understandable that when the snap-fit ​​assembly is provided in multiple groups, the fixing stability of the filter tube 200 can be improved; of course, if the width of the buckle 120 along the axis of the filter tube 200 is large, a single group of snap-fit ​​assembly can achieve stable positioning of the filter tube 200.

[0058] In a preferred embodiment, Figure 1 , Figure 2 As shown, two limiting protrusions 210 are fixedly provided on the filter tube 200 , and the two limiting protrusions 210 are arranged in a linear array along the axial direction of the filter tube 200 .

[0059] When the mounting member 100 and the filter tube 200 are in a clamped state, the clamping assembly on the mounting member 100 is located between the two limiting protruding rings 210 , and the two limiting protruding rings 210 are respectively in contact with the corresponding position buckles 120 .

[0060] In an embodiment of the present application, a clean gas filter as described above is used. After the filter tube 200 is connected to the mounting member 100 through the clamping assembly, the filter tube 200 can be moved axially relative to the mounting member 100 by abutting the limiting convex ring 210 against the buckle 120. When the filter tube 200 performs gas filtration, the stability of the relative positions of the mounting member 100 and the filter tube 200 can be ensured.

[0061] In a preferred embodiment, Figure 1 , Figure 2 As shown, at least one mounting hole 111 is formed through the base plate 110 , and the base plate 110 is fixedly connected to the external fixing frame by bolts through the mounting hole 111 .

[0062] It is understandable that the installation method of the substrate 110 on the external fixing frame is not limited to the above-mentioned one. For example, the substrate 110 and the external fixing frame can be configured to be snapped, buckled or bonded. As long as the installation positioning of the substrate 110 can be achieved, it will not be elaborated here.

[0063] In a preferred embodiment, Figure 1 , Figure 3As shown, the air pipe joint is threadedly connected to the filter tube 200 and is axially penetrated by a delivery channel that can communicate with the filter chamber 220.

[0064] In the embodiment of the present application, the above-mentioned clean gas filter is adopted, and the air pipe connector and the filter tube 200 are detachably connected. Based on the use requirements, the air pipe connectors of different specifications can be flexibly replaced on the filter tube 200, which further improves the practicality of the filter.

[0065] It is understandable that when the air pipe joint and the filter tube 200 are threadedly connected, thread glue can be provided between the two to prevent the air pipe joint and the filter tube 200 from loosening and avoid gas leakage.

[0066] In a preferred embodiment, Figure 1 , Figure 3 As shown, the trachea connector includes a connecting portion 300 and a terminal portion 400 fixedly connected to the connecting portion 300 .

[0067] The connecting portion 300 is threadedly connected to the end of the filter tube 200 and is axially penetrated with a first through hole 310 that can communicate with the filter chamber 220. The end head 400 is threadedly connected to the inner wall of one end of the first through hole 310 away from the filter tube 200 and is axially penetrated with a second through hole 410 that is communicated with the first through hole 310.

[0068] It is understandable that the structural form of the trachea connector is not limited to the above one, as long as it can achieve the connection between the filter chamber 220 and the external pipeline, which will not be described in detail here.

[0069] In a preferred embodiment, Figure 3 , Figure 4 As shown, a sealing ring 600 is provided between the air pipe joint and the corresponding side end surface of the filter tube 200 .

[0070] The sealing ring 600 surrounds the opening of the filter cavity 220 and abuts against the filter tube 200 and the air pipe joint at two axial ends of the filter tube 200 respectively.

[0071] In the embodiment of the present application, the above-mentioned clean gas filter is used, and the sealing ring 600 abuts against the end surface of the filter tube 200 to achieve sealing, which can not only prevent gas leakage, but also does not occupy the gas flow cross-sectional area of ​​the filter chamber 220, thereby ensuring the gas filtering space.

[0072] In a preferred embodiment, Figure 3 , Figure 4 As shown, a first embedding groove 230 surrounding the opening of the filter cavity 220 is provided on the end surface of the filter tube 200 close to the connecting portion 300 , and a second embedding groove 320 capable of buckling with the first embedding groove 230 is provided on the end surface of the connecting portion 300 close to the filter tube 200 .

[0073] When the first embedding groove 230 and the second embedding groove 320 are in a buckled state, the sealing ring 600 is embedded in the first embedding groove 230 and the second embedding groove 320 , and abuts against the corresponding side inner walls of the first embedding groove 230 and the second embedding groove 320 at both ends of the filter tube 200 in the axial direction.

[0074] It is understandable that the installation form of the sealing ring 600 is not limited to the above-mentioned one. For example, only the first embedding groove 230 can be set on the filter tube 200. When the filter tube 200 is installed with the trachea joint, the sealing ring 600 is embedded in the first embedding groove 230, and one end face thereof abuts against the inner wall of the first embedding groove 230, and the other end face abuts against the corresponding side end face of the trachea joint; or only the second embedding groove 320 is set on the connecting portion 300. When the filter tube 200 is installed with the trachea joint, the sealing ring 600 is embedded in the second embedding groove 320, and one end face thereof abuts against the inner wall of the first embedding groove 230, and the other end face abuts against the corresponding side end face of the trachea joint. As long as the sealing effect of the sealing ring 600 on the filter tube 200 and the trachea joint can be guaranteed, it will not be elaborated here.

[0075] In a preferred embodiment, the hollow membrane 500 is specifically configured to be made of polypropylene (PP) material.

[0076] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0077] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A clean gas filter, characterized in that: include: Mounting parts; The filter tube is detachably mounted on the mounting member and has a filter cavity extending therethrough in the axial direction; Wherein, a hollow membrane is provided in the filter cavity, and air pipe joints communicating with the filter cavity are fixedly provided at both axial ends of the filter tube; The filter tube is specifically configured as a transparent tube body, or the filter tube is provided with a transparent visible section at a position corresponding to the hollow membrane.

2. A clean gas filter according to claim 1, characterized in that: The mounting member comprises a base plate and at least one set of clamping components fixedly arranged on the base plate; Wherein, the filter tube can be clamped with the mounting piece through a clamping assembly.

3. A clean gas filter according to claim 2, characterized in that: The clamping assembly comprises two clamps fixedly arranged on the base plate and symmetrically arranged about the filter tube axis, wherein the clamp is provided with a guiding inclined surface at one end away from the base plate and with a limiting arc groove at one end close to the filter tube; The guide slope is inclined toward a side away from the substrate and toward a side of the filter tube. The filter tube can abut against the guide slope and be clamped between the two limit arc grooves under the guidance of the guide slope.

4. A clean gas filter according to claim 2 or 3, characterized in that: The clamping components are provided in multiple groups on the base plate, and the multiple groups of the clamping components are arranged in a linear array along the axial direction of the filter tube.

5. A clean gas filter according to claim 2 or 3, characterized in that: Two limiting convex rings are fixedly provided on the filter tube, and the two limiting convex rings are arranged in a linear array along the axial direction of the filter tube; Wherein, when the mounting member and the filter tube are in a clamped state, the clamping assembly on the mounting member is located between two limiting convex rings, and the two limiting convex rings are respectively in clamping contact with corresponding positions.

6. A clean gas filter according to claim 2, characterized in that: At least one mounting hole is formed through the base plate; The base plate can be fixedly connected to the external fixing frame by bolts through the mounting holes.

7. A clean gas filter according to claim 1, characterized in that: The air pipe joint is threadedly connected to the filter pipe and is axially penetrated by a delivery channel that can communicate with the filter chamber.

8. A clean gas filter according to claim 7, characterized in that: The trachea joint comprises a connecting portion and a terminal portion fixedly connected to the connecting portion; The connecting portion is threadedly connected to the end of the filter tube, and is provided with a first through hole in the axial direction that can communicate with the filter chamber; The end portion is threadedly connected to the inner wall of one end of the first through hole away from the filter tube, and a second through hole communicating with the first through hole is axially penetrated therethrough.

9. A clean gas filter according to claim 1, 7 or 8, characterized in that: A sealing ring is provided between the air pipe joint and the corresponding side end surface of the filter tube; The sealing ring surrounds the filter cavity opening and abuts against the filter tube and the air pipe joint at two ends of the filter tube in the axial direction.

10. A clean gas filter according to claim 9, characterized in that: The filter tube is provided with a first embedding groove surrounding the filter cavity opening on the end surface close to the air pipe joint, and the end surface close to the air pipe joint is provided with a second embedding groove capable of buckling with the first embedding groove; Wherein, when the first embedding groove and the second embedding groove are in a buckled state, the sealing ring is embedded in the first embedding groove and the second embedding groove, and abuts against the corresponding side inner walls of the first embedding groove and the second embedding groove at two axial ends of the filter tube.

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