High pressure filter for gas pipelines

Abstract

The utility model discloses a kind of high-pressure filters for gas pipeline, comprising: filter body;Filter pipeline, filter pipeline is connected in filter body one side, filter pipeline inside is provided with placing cavity, filter body top is equipped with air inlet end, filter body bottom is equipped with air outlet end;Filtering assembly, filtering assembly is located in filter pipeline, for the subsequent or particulate impurities in gas, filtering assembly includes: filter core, sealing washer, fastening hole and plug cap, placing cavity inside is equipped with filter core, filter core one end is equipped with sealing washer, filter pipeline one end is provided with fastening hole, fastening hole inside is connected with plug cap by screw thread.The utility model realizes the setting of filtering assembly, realizes the quick replacement to filter core, and filter body is reused, saves cost, while effectively filtering moisture and particulate impurities in gas, guarantee gas purity.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically a high-pressure filter for gas pipelines. Background Technology

[0002] During the filling and transportation of industrial gases (such as oxygen, nitrogen, argon, etc.), the gases usually carry a small amount of water, particulate impurities and other contaminants. When these gases containing impurities are used as a gas source, water and particulate matter are easy to deposit in precision equipment such as instruments and valves at the user end, causing blockage, wear and even equipment failure. Therefore, a high-pressure filter is needed that is applicable to all gas supply manifolds or high and low pressure gas pipelines. Utility Model Content

[0003] The technical problem to be solved by this utility model embodiment is to provide a high-pressure filter for gas pipelines. By setting the filter components, the filter element can be quickly replaced while the filter body can be reused, saving costs. At the same time, it effectively filters moisture and particulate impurities in the gas, ensuring gas purity.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure filter for gas pipelines, comprising:

[0005] The filter body is used to filter particulate impurities in gas pipelines;

[0006] A filter pipe is connected to one side of the filter body. The filter pipe has a placement cavity inside. The top of the filter body has an air inlet end and the bottom of the filter body has an air outlet end.

[0007] A filter assembly is disposed in the filter pipe for filtering particulate impurities in the gas. The filter assembly includes a filter element, a sealing gasket, a fastening hole, and a plug. The filter element is disposed inside the placement cavity. A sealing gasket is provided at one end of the filter element. A fastening hole is provided at one end of the filter pipe. A plug is threaded into the fastening hole.

[0008] Furthermore, the filter body has a first threaded hole at its bottom, and an air outlet chamber communicating with the first threaded hole is provided inside the filter body. A sealing ring is provided inside the first threaded hole.

[0009] Furthermore, the outer side of the air outlet end is provided with threads, and the air outlet end is threadedly connected to the first threaded hole. An air outlet connector is sleeved on the outer side of the air outlet end, and the inner wall of the air outlet connector is provided with threads.

[0010] Furthermore, the filter body has an exhaust chamber inside, and the exhaust chamber is connected to the placement chamber and the air outlet chamber respectively.

[0011] Furthermore, the filter body has a second threaded hole at the top, and an air inlet chamber communicating with the second threaded hole is provided inside the filter body, and the air inlet chamber is communicating with the placement chamber.

[0012] Furthermore, the air intake end is threadedly connected to the second threaded hole, and an annular sealing groove is formed at the bottom of the air intake end, with a sealing ring inside the sealing groove.

[0013] Furthermore, the cross-sectional size of the placement cavity is larger than the cross-sectional size of the filter element, the filter element is arranged in an annular column structure, and a protective gasket is provided at one end of the filter element.

[0014] Furthermore, an annular groove is provided on one side of the plug, and an annular ring is provided inside the annular groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] By designing the filter components, the filter element and its associated sealing gaskets, protective gaskets, and other parts are detachable. Users can replace the filter element periodically according to usage conditions, extending the service life of the equipment and reducing operating costs. At the same time, it effectively filters moisture and particulate impurities in the gas, ensuring gas purity and preventing gas supply interruptions or equipment damage caused by impurities clogging downstream equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the filter element structure of this utility model.

[0020] Figure 4 For the present utility model Figure 2 Enlarged view of point A in the image.

[0021] Figure 5 For the present utility model Figure 2 Enlarged view of point B in the image.

[0022] In the diagram: 1. Filter body; 101. First threaded hole; 102. Sealing ring; 103. Air outlet chamber; 104. Air inlet chamber; 105. Exhaust chamber; 106. Second threaded hole; 2. Filter pipe; 201. Placement chamber; 202. Protective gasket; 203. Filter element; 204. Sealing gasket; 205. Fastening hole; 206. Plug; 2061. Annular groove; 207. Annular ring; 3. Air inlet end; 301. Sealing groove; 302. Sealing ring; 4. Air outlet end; 401. Air outlet connector. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] This application provides a high-pressure filter for gas pipelines, which solves the problem that small amounts of moisture and particulate impurities in existing gas filling equipment can easily clog the instruments or valves at the user end when used as a gas source.

[0025] By setting up the filter components, the filter element 203 and its matching sealing gasket 204, protective gasket 202 and other components are detachable. Users can replace the filter element 203 regularly according to the usage conditions, which extends the service life of the equipment and reduces the operating cost. At the same time, it effectively filters moisture and particulate impurities in the gas, ensures the purity of the gas, and avoids gas supply interruption or equipment damage caused by impurities clogging downstream equipment.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] Reference Figure 1 , Figure 2As shown, a high-pressure filter for gas pipelines includes: a filter body 1 for filtering particulate impurities in the gas pipeline; a filter pipe 2 connected to one side of the filter body 1, with a placement cavity 201 inside the filter pipe 2; an air inlet end 3 at the top of the filter body 1 and an air outlet end 4 at the bottom of the filter body 1; and a filter assembly disposed in the filter pipe 2 for filtering particulate impurities in the gas. The filter assembly includes: a filter element 203, a sealing gasket 204, a fastening hole 205, and a plug 206. The filter element 203 is disposed inside the placement cavity 201, with a sealing gasket 204 at one end of the filter element 203, and a fastening hole 205 at one end of the filter pipe 2, with a plug 206 threadedly connected inside the fastening hole 205.

[0028] Industrial gases such as oxygen, nitrogen, and argon typically contain small amounts of moisture and particulate impurities in their cylinders during filling. When used as a gas source, these impurities can clog the user's instruments or valves, preventing the equipment from supplying gas properly. Therefore, during cylinder filling, the outlet end 4 and inlet end 3 are connected to the inlet and outlet pipes of the gas pipeline, respectively. This allows the filter body 1 to be connected to the pipeline, enabling the high-pressure gas in the pipeline to pass through the filter body 1 before entering the cylinder. The filter element 203 of the filter assembly effectively filters out small amounts of moisture or particulate impurities in the high-pressure gas, ensuring that the gas ultimately filled into the cylinder or used meets the required purity standards.

[0029] Reference Figure 1 , Figure 2 As shown, the filter body 1 has a first threaded hole 101 at the bottom, and an air outlet chamber 103 communicating with the first threaded hole 101 is provided inside the filter body 1. A sealing ring 102 is provided inside the first threaded hole 101. The air outlet end 4 has threads on the outside and is threaded to the first threaded hole 101. An air outlet connector 401 is sleeved on the outside of the air outlet end 4 and the inner wall of the air outlet connector 401 has threads.

[0030] During installation, first pass the outlet end 4 through the inside of the outlet connector 401 so that the outlet connector 401 is fitted onto the outlet end 4. Then, insert the sealing ring 102 into the first threaded hole 101. Next, thread the threaded part of the outlet end 4 into the first threaded hole 101. At this time, the sealing ring 102 can seal the gap between the outlet end 4 and the first threaded hole 101, reducing air leakage. Then, thread the outlet connector 401 into the gas cylinder's inlet pipe to complete the connection of the outlet part.

[0031] Combination Figure 5Furthermore, the filter body 1 has a second threaded hole 106 at the top, and an air inlet chamber 104 communicating with the second threaded hole 106 is provided inside the filter body 1. The air inlet chamber 104 is also communicating with the placement chamber 201. The air inlet end 3 is threadedly connected to the second threaded hole 106. The bottom of the air inlet end 3 has an annular sealing groove 301, and a sealing ring 302 is provided inside the sealing groove 301.

[0032] The sealing ring 302 is fitted onto the outside of the threaded portion of the air inlet end 3, and then the air inlet end 3 is threadedly connected to the second threaded hole 106. After the air inlet end 3 is threadedly connected, the sealing ring 302 and the sealing groove 301 can seal the gap between the air inlet end 3 and the filter body 1, preventing gas from leaking from the gap. Then, the threads on the outside of the air inlet end 3 are threadedly connected to the gas pipeline of the gas source, thus completing the connection to the filter body 1.

[0033] Reference Figure 2 As shown, an annular groove 2061 is provided on one side of the plug 206, and an annular ring 207 is provided inside the annular groove 2061. When the filter element 203 is removed and replaced, the plug 206 can be unscrewed from the internal thread of the fastening hole 205, and then the annular ring 207, sealing gasket 204, filter element 203 and protective gasket 202 can be taken out in sequence. When the filter element 203 is reinserted, the protective gasket 202, filter element 203 and sealing gasket 204 can be placed into the placement cavity 201 in the following order. The annular ring 207 is placed into the annular groove 2061, and then the plug cap 206 is screwed back into the fastening hole 205. At this time, the plug cap 206 compresses the sealing gasket 204, filter element 203 and protective gasket 202 through the annular ring 207, so that the sealing gasket 204 and protective gasket 202 can seal the gap between the two ends of the filter element 203 and the placement cavity 201, so that the high-pressure gas entering the placement cavity 201 can only enter the lower chamber through the filter element 203.

[0034] Combination Figure 2 Furthermore, the filter body 1 has an exhaust chamber 105 inside, and the exhaust chamber 105 is connected to the placement chamber 201 and the air outlet chamber 103 respectively. The cross-sectional size of the placement chamber 201 is larger than the cross-sectional size of the filter element 203. The filter element 203 is arranged in an annular column structure, and a protective gasket 202 is provided at one end of the filter element 203.

[0035] When filling the cylinder, high-pressure gas enters the inlet chamber 104 through the inlet end 3, and then enters the placement chamber 201 through the inlet chamber 104. Due to the setting of the sealing gasket 204 and the protective gasket 202, the high-pressure gas can only flow into the center of the filter element 203. Then, under the action of pressure, it passes through the filter element 203, which filters out moisture and particulate matter in the gas. At the same time, since the cross-sectional size of the placement chamber 201 is larger than that of the filter element 203, there is space between the placement chamber 201 and the filter element 203. At this time, the gas located at the center of the filter element 203 can diffuse outward evenly under the action of air pressure, avoiding the gas only passing through part of the filter element 203, which would result in the other parts of the filter element 203 not participating in filtration. The gas passing through the filter element 203 enters the exhaust chamber 105, and then enters the outlet chamber 103 through the exhaust chamber 105. Finally, it enters the cylinder through the outlet end 4 and the outlet connector 401, completing the filling operation.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-pressure filter for gas pipelines, characterized in that, include: The filter body (1) is used to filter particulate impurities in the gas pipeline; The filter pipe (2) is connected to one side of the filter body (1). The filter pipe (2) has a placement cavity (201) inside. The filter body (1) has an air inlet (3) at the top and an air outlet (4) at the bottom. A filter assembly is disposed in the filter pipe (2) for filtering particulate impurities in the gas. The filter assembly includes a filter element (203), a sealing gasket (204), a fastening hole (205), and a plug (206). The filter element (203) is disposed inside the placement cavity (201). A sealing gasket (204) is provided at one end of the filter element (203). A fastening hole (205) is opened at one end of the filter pipe (2). A plug (206) is threadedly connected inside the fastening hole (205).

2. The high-pressure filter for gas pipelines according to claim 1, characterized in that, The filter body (1) has a first threaded hole (101) at the bottom, and an air outlet chamber (103) communicating with the first threaded hole (101) is provided inside the filter body (1). A sealing ring (102) is provided inside the first threaded hole (101).

3. The high-pressure filter for gas pipelines according to claim 2, characterized in that, The air outlet end (4) is provided with a thread on the outside, and the air outlet end (4) is threadedly connected to the first threaded hole (101). An air outlet connector (401) is sleeved on the outside of the air outlet end (4), and the inner wall of the air outlet connector (401) is provided with a thread.

4. The high-pressure filter for gas pipelines according to claim 2, characterized in that, The filter body (1) has an exhaust chamber (105) inside, and the exhaust chamber (105) is connected to the placement chamber (201) and the air outlet chamber (103) respectively.

5. The high-pressure filter for gas pipelines according to claim 1, characterized in that, The filter body (1) has a second threaded hole (106) at the top, and an air inlet chamber (104) communicating with the second threaded hole (106) is provided inside the filter body (1), and the air inlet chamber (104) is communicating with the placement chamber (201).

6. The high-pressure filter for gas pipelines according to claim 5, characterized in that, The air intake end (3) is threadedly connected to the second threaded hole (106). The bottom of the air intake end (3) has an annular sealing groove (301), and a sealing ring (302) is provided inside the sealing groove (301).

7. The high-pressure filter for gas pipelines according to claim 1, characterized in that, The cross-sectional size of the placement cavity (201) is larger than that of the filter element (203). The filter element (203) is arranged in an annular column structure, and a protective gasket (202) is provided at one end of the filter element (203).

8. The high-pressure filter for gas pipelines according to claim 1, characterized in that, The plug (206) has an annular groove (2061) on one side, and an annular ring (207) is provided inside the annular groove (2061).

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