A nozzle device, a natural gas filter and a natural gas filtering system

By designing the alignment device, fasteners and clips are used to achieve a detachable connection between the filter element and the filter, solving the problem of aligning the end faces of the filter element and ensuring the stable operation of the filter and the effective use of the filter element.

CN122141356APending Publication Date: 2026-06-05PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2024-12-05
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In natural gas filters, the end face of the filter element is difficult to completely align with the internal wall of the filter, which makes the filter element easy to be punctured during installation, affecting the filtration effect and wasting other filter elements.

Method used

The device employs a matching mechanism, including fasteners and clips, to achieve a detachable connection between the filter element and the filter via a retractable movable end and a snap-fit ​​gap, ensuring end face alignment and enhancing connection stability.

Benefits of technology

This effectively prevents one end of the filter element from sinking, ensuring that the filter element does not fail during long-term use, improving the overall filtration effect of the filter, and reducing filter element waste.

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Abstract

The application discloses a device for aligning, a natural gas filter and a natural gas filtering system. The device for aligning comprises a fastener and a clamping piece connected with each other. The fastener has a movable end which can be extended and retracted. Correspondingly, the fastener has a first station in which the movable end is extended and a second station in which the movable end is retracted. A clamping gap for connecting other components is left between the movable end of the fastener and the clamping piece. Correspondingly, the fastener is switched between the first station and the second station to control the connection between the clamping gap and the other components. The natural gas filter comprises the device for aligning. The natural gas filtering system comprises the natural gas filter. The device for aligning is used to connect the filter core with the filter and align the end faces, the device for aligning is used to increase the connection effect, the filter core is prevented from sinking at one end, and the filter core is prevented from being invalid in a long-time use.
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Description

Technical Field

[0001] This invention relates to the field of natural gas filtration technology, specifically to a matching device, a natural gas filter, and a natural gas filtration system. Background Technology

[0002] In natural gas station processes, filters are commonly used to remove particulate matter from the gas. Filters primarily remove particulate matter through their internal filter elements.

[0003] The installation of the filter element inside the filter is as follows: Figure 1 As shown, during installation, one end of the filter element is connected to the filter to form a simply supported beam structure. Due to the force on one end of the simply supported beam, the other end often sinks, making it difficult for the end face of the filter element to completely overlap with the inner wall of the filter.

[0004] If the filter elements cannot be aligned, they will be punctured during installation and lose their filtering function. In particular, filters in natural gas stations typically have more than 10 filter elements, not just 1-2. If the end faces of one of the filter elements are not aligned, the entire filter will lose its dust-filtering function, and the other filter elements will be wasted. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the end face of the filter element in a natural gas filter is difficult to completely overlap with the inner wall of the filter. The purpose is to provide a matching device, a natural gas filter, and a natural gas filtration system to solve the above-mentioned problem.

[0006] This invention is achieved through the following technical solution:

[0007] In a first aspect, the present invention provides a mating device, comprising a fastener and a locking element connected together;

[0008] The fastener has a retractable movable end, and correspondingly, the fastener has a first station where the movable end extends outward and a second station where the movable end retracts.

[0009] There is a snap-fit ​​gap between the moving end of the fastener and the locking piece for connecting other components. Accordingly, the fastener controls the connection between the snap-fit ​​gap and other components by switching between the first station and the second station.

[0010] In one possible design, the fastener includes a base, a fastener body, and an elastic element; the base has a basic shape and a hollow cavity; the fastener body is movably mounted on the base, and the fastener body has two ends, one of which extends outside the base and is configured as the movable end, and the other end is located inside the base and connected to the base through the elastic element.

[0011] In one possible design, the elastic element includes a sliding seat and a spring. The sliding seat is slidably disposed within the base, and correspondingly, the base is provided with a groove adapted to the sliding seat. The spring connects the fastener body and the sliding seat.

[0012] In one possible design, the sliding seat has two opposing ends, one end of which is slidably connected to the base and the other end is rotatably connected to the fastener body, and the sliding seat is provided with a mounting groove adapted to the spring.

[0013] In one possible design, the extended end of the fastener body has two opposing outer surfaces, one of which is constructed as a sliding arc surface facing away from the snap-fit ​​gap, and the other is constructed as an abutting plane facing the snap-fit ​​gap.

[0014] In one possible design, there are at least two fasteners and one or more clips. Accordingly, when there is one clip, the clip is constructed as a frame structure, and multiple fasteners are evenly distributed on the clip; when there are multiple clips, the fasteners and clips are set in a one-to-one correspondence.

[0015] In one possible design, when multiple cards are provided, each card includes a base plate and an insert plate;

[0016] The substrate includes a first plate and a second plate. The first plate has two opposing outer surfaces, one of which is connected to a fastener and the other is connected to an inner panel. The second plate is connected to the end of the first plate to make the substrate L-shaped, and the second plate is located outside the inner panel.

[0017] The inner panel is connected to the first panel and is positioned opposite to the second panel, with a slot formed between the inner panel and the second panel.

[0018] In one possible design, the inlay panel includes a third panel parallel to the second panel and an additional panel connected to the third panel, the additional panel having opposite ends, one end of which is connected to the first panel and the other end extending away from the first panel to the outside of the third panel.

[0019] In one possible design, both the fasteners and clips are made of stainless steel.

[0020] Secondly, the present invention provides a natural gas filter, including a filter element, a filter, and a plurality of the aforementioned matching devices, wherein the end of the filter element is connected to the matching device, and the filter element is detachably connected to the filter via the matching device.

[0021] In one possible design, the aligning device is connected to the filter element via a clip, and the aligning device is detachably connected to the filter via a snap-fit ​​gap. Correspondingly, the filter is provided with an outward protrusion that fits the snap-fit ​​gap.

[0022] In one possible design, the filter is provided with a slide rail, and the filter element is slidably mounted on the slide rail so that the filter element slides along the slide rail and is connected to the filter.

[0023] Thirdly, the present invention provides a natural gas filtration system, including the aforementioned natural gas filter.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0025] The alignment device ensures the connection and end face alignment between the filter element and the filter, enhancing the connection effect and preventing one end of the filter element from sinking, thus ensuring that the filter element will not fail during long-term use. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of a natural gas filter and filter element in the prior art.

[0028] Figure 2 This is a schematic diagram of the structure of a natural gas filter.

[0029] Figure 3 This is a schematic diagram of the assembly of the filter element and the connection device.

[0030] Figure 4 This is a structural diagram of the fastener.

[0031] The attached diagram shows the markings and corresponding component names:

[0032] 10. Fastener; 11. Base; 12. Fastener body; 121. Sliding arc surface; 122. Abutting plane; 13. Elastic element; 131. Sliding seat; 132. Spring; 133. Mounting groove; 20. Clip; 21. Base plate; 211. First plate; 212. Second plate; 22. Inset plate; 221. Third plate; 222. Additional plate; 30. Clip gap; 40. Filter element; 50. Filter. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0034] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other embodiments, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the invention.

[0035] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] In the description of this invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0037] Example:

[0038] like Figures 2-4 As shown, a mating device includes a fastener 10 and a locking element 20 connected together;

[0039] The fastener 10 has a retractable movable end, and correspondingly, the fastener 10 has a first station where the movable end extends outward and a second station where the movable end retracts.

[0040] A snap-fit ​​gap 30 is left between the moving end of the fastener 10 and the clip 20 for connecting other components. Accordingly, the fastener 10 controls the connection of the snap-fit ​​gap 30 with other components by switching between the first station and the second station.

[0041] The matching device is used to connect two components. A detachable connection is achieved via fastener 10, and a fixed connection is achieved via clip 20. Specifically, taking a natural gas filter 50 and filter element 40 in the background art as an example, clip 20 fixes the filter element 40 so that the matching device is fixed to the filter element 40. Clip 20 can connect the filter element 40 using any suitable fixed connection method, offering a wide range of choices. When the filter element 40 is connected to the filter 50, the connection between the filter element 40 and the filter 50 is achieved via fastener 10, that is, by connecting to the filter 50 via the snap-fit ​​gap 30.

[0042] Furthermore, because the fastener 10 is retractable, when the filter element 40 is connected to the filter 50, the fastener 10 switches from the first position to the second position. The fastener 10 retracts, shortening one side of the locking gap 30, making it easier for the filter 50 to be inserted into the locking gap 30. When the filter element 40 is connected to the filter 50, the fastener 10 switches from the second position to the first position, extending outwards to lengthen the side of the locking gap 30, thus preventing the filter 50 from disengaging from the locking gap 30. Based on this, when it is necessary to remove the filter element 40 from the filter 50, the fastener 10 switches from the first position to the second position again, and then the filter element 40 can be pulled out.

[0043] For the natural gas filter 50 and filter element 40, multiple fasteners 10 are used to increase the connection points, ensure the fixing effect, and prevent the filter element 40 from sinking at one end, so as to ensure that the filter element 40 can play a filtering role.

[0044] It is worth noting that the matching device can be used not only to connect the natural gas filter 50 to the filter element 40, but also to connect any other suitable components.

[0045] In one possible implementation, the fastener 10 includes a base 11, a fastener body 12, and an elastic element 13; the base 11 has a basic shape and is provided with a hollow cavity; the fastener body 12 is movably disposed on the base 11, and the fastener body 12 has two ends, one end of which extends out of the base 11 and is configured as the movable end, and the other end is located inside the base 11 and is connected to the base 11 through the elastic element 13.

[0046] Based on the above design scheme, the base 11 can be constructed into any suitable shape, and preferably, such as Figures 2-4 As shown, the base 11 has hollowed-out sides, allowing both sides of the hollow cavity to be connected to the outside. Based on this, on the one hand, the weight of the base 11 is reduced, achieving the purpose of lightweighting, and on the other hand, it is convenient for staff to observe, adjust and maintain the components located in the hollow cavity, namely the connecting end of the fastener body 12 and the elastic element 13.

[0047] The fastener body 12 achieves telescopic performance through the elastic element 13. That is, when an external force is applied, or when it is obstructed, the fastener body 12 moves inward into the base 11 and contracts, while the elastic element 13 is also compressed and deformed. At this time, the length of the fastener body 12 outside the base 11 decreases, thus shortening one side of the snap-fit ​​gap 30. When the external force is removed, or when it is no longer obstructed, the elastic element 13 returns to its original shape, and the fastener body 12 moves outward under the action of elastic force and extends. At this time, the length of the fastener body 12 outside the base 11 increases, thus lengthening one side of the snap-fit ​​gap 30.

[0048] It is worth noting that since the fastener body 12 is movably mounted on the base 11, it has a large degree of freedom of movement. When it is necessary to remove two connected parts, the fastener body 12 is pulled by an external force to rotate relative to the base 11, thereby causing one side of the snap-fit ​​gap 30 to tilt and shorten relatively, so that the connection of the parts can be disengaged from the snap-fit ​​gap 30.

[0049] Furthermore, when the fastener body 12 disengages from the snap-fit ​​gap 30 at the component connection, the side formed by the fastener body 12 tilts and acts as a guide. As disengagement proceeds, the fastener body 12 can also move and retract into the base 11, reducing the difficulty of separation. Correspondingly, the base 11 is provided with a groove structure connected to the fastener body 12, which increases the range of motion of the fastener body 12.

[0050] In one possible implementation, the elastic element 13 includes a sliding seat 131 and a spring 132. The sliding seat 131 is slidably disposed in the base 11. Correspondingly, the base 11 is provided with a groove adapted to the sliding seat 131. The spring 132 connects the fastener body 12 and the sliding seat 131.

[0051] Based on the above design scheme, when the fastener body 12 moves under the action of external force, especially when the parts are separated, the fastener body 12 will also have a combined motion of rotation and retraction. In order to cooperate with the movement of the fastener body 12, the elastic element 13 is provided with a sliding seat 131 on the basis of the spring 132. The sliding seat 131 can slide, thereby adjusting the direction of the elastic element 13, making the movement of the elastic element 13 more flexible, and thus better cooperating with the movement of the fastener body 12, avoiding the elastic element 13 from getting stuck, and thus avoiding the fastener body 12 from being unable to move and the two parts from being unable to separate or connect.

[0052] In one possible implementation, the sliding seat 131 has two opposing ends, one end of which is slidably connected to the base 11 and the other end is rotatably connected to the fastener body 12, and the sliding seat 131 is provided with a mounting groove 133 adapted to the spring 132.

[0053] Based on the above design, the mounting groove 133 not only provides space for the installation of the spring 132, but also addresses the issue that, due to the relatively complex movement trajectory of the fastener body 12, the springs 132 are prone to tangling, which could lead to the jamming of the elastic element 13. Therefore, by guiding and restricting the springs 132 through the mounting groove 133, the deformation direction of the springs 132 is limited to a certain extent, reducing the failure rate of the elastic element 13 caused by the springs 132.

[0054] In one possible implementation, the extended end of the fastener body 12 has two opposing outer surfaces, one of which is constructed as a sliding arc surface 121 facing away from the snap-fit ​​gap 30, and the other is constructed as an abutment plane 122 facing the snap-fit ​​gap 30.

[0055] Based on the above design, the sliding arc surface 121 reduces the difficulty of connecting the two components, and it also guides the movement direction of the components, ensuring that the connection point of the components is smoothly inserted into the locking gap 30. The abutment plane 122 increases the difficulty of the component connection point disengaging from the locking gap 30, thus ensuring the reliability of the connection; conversely, if two connected components need to be separated, a force much greater than that applied during installation is required, which also ensures the reliability of the connection to a certain extent.

[0056] In one possible implementation, there are at least two fasteners 10 and one or more locking elements 20. Accordingly, when there is one locking element 20, the locking element 20 is constructed as a frame structure, and multiple fasteners 10 are evenly distributed on the locking element 20; when there are multiple locking elements 20, the fasteners 10 and the locking elements 20 are set in a one-to-one correspondence.

[0057] Based on the above design scheme, if used for point-to-point connection, both fastener 10 and clip 20 are provided to reduce volume and space occupation. If there are multiple connection points, multiple fasteners 10 need to be provided. For clip 20, it can be constructed as a matching frame structure to connect multiple fasteners 10 at the same time, or multiple clips 20 can be provided, with fasteners 10 and clips 20 corresponding one-to-one and connecting multiple connection points respectively.

[0058] Therefore, the aforementioned matching device has diverse applications, allowing staff to flexibly select the appropriate device based on actual circumstances, resulting in a wider range of applications and better practicality.

[0059] In one possible implementation, when multiple card pieces 20 are provided, each card piece 20 includes a base plate 21 and an insert plate 22;

[0060] The substrate 21 includes a first plate 211 and a second plate 212. The first plate 211 has two opposing outer surfaces, one of which is connected to the fastener 10 and the other is connected to the inner plate 22. The second plate 212 is connected to the end of the first plate 211 so that the substrate 21 is L-shaped and the second plate 212 is located outside the inner plate 22.

[0061] The inner panel 22 is connected to the first panel 211, and the inner panel 22 is disposed opposite to the second panel 212. Accordingly, a slot is formed between the inner panel 22 and the second panel 212.

[0062] Based on the above design, the base plate 21 serves a connecting function, connecting the fastener 10 and forming a snap-fit ​​gap 30 on one hand, and connecting the inner plate 22 on the other hand to increase the reliability of the connection with the component. The inner plate 22 cooperates with the second plate 212 to form a slot, thereby connecting the fastener 20 with other components through the slot.

[0063] Furthermore, if necessary, the clip 20 can also be connected to other components by any suitable fixing method, including but not limited to adhesive, welding, riveting and nailing.

[0064] In one possible implementation, the inlay panel 22 includes a third panel 221 parallel to the second panel 212 and an additional panel 222 connected to the third panel 221. The additional panel 222 has two opposing ends, one end of which is connected to the first panel 211 and the other end extends away from the first panel 211 to the outside of the third panel 221.

[0065] Based on the above design, in the embedded panel 22, the third plate 221 and the second plate 212 cooperate to form a slot, and the connection is achieved by snap-fit. The additional plate 222 supports the third plate 221 on the one hand to increase the structural strength, and on the other hand to increase the contact area with the component, so as to improve the connection effect.

[0066] In one possible implementation, both fastener 10 and clamp 20 are made of stainless steel. Based on the above design, stainless steel has good corrosion resistance, strength, durability, and heat resistance, and can adapt to various corrosive environments, ensuring the service life of the mating device. Moreover, there are many grades of stainless steel available, offering a wide range of choices and good practicality.

[0067] This embodiment introduces a natural gas filter based on the aforementioned matching device, such as... Figure 2 and Figure 3 As shown, the natural gas filter includes a filter element 40, a filter 50, and a plurality of the aforementioned matching devices. The end of the filter element 40 is connected to the matching device, and the filter element 40 is detachably connected to the filter 50 through the matching device.

[0068] In the natural gas filter, the filter element 40 and the filter 50 are connected and aligned by a matching device. The matching device enhances the connection effect, prevents the filter element 40 from sinking at one end, and ensures that the filter element 40 will not fail during long-term use.

[0069] It's easy to understand that, regarding the number of matching devices, staff can select any appropriate number based on the actual usage conditions.

[0070] In one possible implementation, the aligning device is connected to the filter element 40 via a clip 20, and the aligning device is detachably connected to the filter 50 via a snap-fit ​​gap 30. Correspondingly, the filter 50 is provided with an outward protrusion that fits the snap-fit ​​gap 30.

[0071] Based on the above design, the filter 50 is inserted into the snap-fit ​​gap 30 of the matching device via an outward protrusion, thereby connecting the filter 50 and the filter element 40. Considering that there are multiple matching devices, the outward protrusion is preferably constructed as a ring to facilitate the rotation of the filter element 40 and the adjustment of the position of the matching device.

[0072] In one possible implementation, the filter 50 is provided with a slide rail, and the filter element 40 is slidably disposed on the slide rail so that the filter element 40 slides along the slide rail and is connected to the filter 50.

[0073] Based on the above design, the filter element 40 slides back and forth along the slide rail to guide its movement, reducing the need for manual alignment and thus reducing installation time. Furthermore, the slide rail is used as a reference point for applying force during assembly and disassembly to ensure accurate force direction and minimize the probability of damage to the alignment device during assembly and disassembly.

[0074] This embodiment also describes a natural gas filtration system, which includes the aforementioned natural gas filter. Depending on the specific operating conditions, the natural gas filtration system can also be equipped with other suitable functional modules to increase and enrich its functionality, thereby meeting the operating requirements under different conditions. It is easy to understand that the functional modules can be any suitable existing equipment, offering a wide range of choices.

[0075] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A matching device, characterized in that, Includes connected fasteners (10) and clips (20); The fastener (10) has a retractable movable end, and correspondingly, the fastener (10) has a first station where the movable end extends outward and a second station where the movable end retracts. A snap-fit ​​gap (30) is left between the moving end of the fastener (10) and the clip (20) for connecting other components. Accordingly, the fastener (10) controls the connection of the snap-fit ​​gap (30) with other components by switching between the first station and the second station.

2. The matching device according to claim 1, characterized in that, The fastener (10) includes a base (11), a fastener body (12), and an elastic element (13); the base (11) has a basic shape and a hollow cavity; the fastener body (12) is movably mounted on the base (11), and the fastener body (12) has two ends, one end of which extends outside the base (11) and is configured as the movable end, and the other end is located inside the base (11) and is connected to the base (11) through the elastic element (13).

3. The matching device according to claim 2, characterized in that, The elastic element (13) includes a sliding seat (131) and a spring (132). The sliding seat (131) is slidably disposed in the base (11). Correspondingly, the base (11) is provided with a groove adapted to the sliding seat (131). The spring (132) connects the fastener body (12) and the sliding seat (131).

4. The matching device according to claim 3, characterized in that, The sliding seat (131) has two opposite ends, one end of which is slidably connected to the base (11) and the other end is rotatably connected to the fastener body (12), and the sliding seat (131) is provided with a mounting groove (133) adapted to the spring (132).

5. The matching device according to claim 2, characterized in that, The extended end of the fastener body (12) has two opposing outer surfaces, one of which is constructed as a sliding arc surface (121) facing away from the snap-fit ​​gap (30), and the other is constructed as an abutting plane (122) facing the snap-fit ​​gap (30).

6. The matching device according to any one of claims 1-5, characterized in that, There are at least two fasteners (10) and one or more clips (20). Accordingly, when there is one clip (20), the clip (20) is constructed as a frame structure, and multiple fasteners (10) are evenly distributed on the clip (20); when there are multiple clips (20), the fasteners (10) and the clips (20) are set one-to-one.

7. The matching device according to claim 6, characterized in that, When multiple card pieces (20) are provided, each card piece (20) includes a base plate (21) and an insert plate (22); The substrate (21) includes a first plate (211) and a second plate (212), wherein the first plate (211) has two opposing outer surfaces, one of which is connected to a fastener (10) and the other is connected to an inner panel (22); the second plate (212) is connected to the end of the first plate (211) so that the substrate (21) is L-shaped, and the second plate (212) is located outside the inner panel (22); The inner panel (22) is connected to the first panel (211), and the inner panel (22) is disposed opposite to the second panel (212). Correspondingly, a slot is formed between the inner panel (22) and the second panel (212).

8. The matching device according to claim 7, characterized in that, The inlay panel (22) includes a third panel (221) parallel to the second panel (212) and an additional panel (222) connected to the third panel (221). The additional panel (222) has two opposing ends, one end of which is connected to the first panel (211) and the other end extends away from the first panel (211) to the outside of the third panel (221).

9. The matching device according to claim 1, characterized in that, Both the fastener (10) and the clip (20) are made of stainless steel.

10. A natural gas filter, characterized in that, The filter includes a filter element (40), a filter (50), and a matching device according to any one of claims 1-9, wherein the end of the filter element (40) is connected to the matching device, and the filter element (40) is detachably connected to the filter (50) via the matching device.

11. The natural gas filter according to claim 10, characterized in that, The fitting device is connected to the filter element (40) via a clip (20), and the fitting device is detachably connected to the filter (50) via a snap-fit ​​gap (30). Correspondingly, the filter (50) is provided with an external protrusion that fits the snap-fit ​​gap (30).

12. The natural gas filter according to claim 11, characterized in that, The filter (50) is provided with a slide rail, and the filter element (40) is slidably mounted on the slide rail so that the filter element (40) slides along the slide rail and connects to the filter (50).

13. A natural gas filtration system, characterized in that, Includes the natural gas filter according to any one of claims 10-12.