Natural gas filtering device

Abstract

The utility model relates to the technical field of natural gas filtering and discloses a natural gas filtering device which comprises a filter shell, a pressing plate fixedly connected to the top of the filter shell through bolts, a gas inlet pipe and a gas outlet pipe, the gas inlet pipe and the gas outlet pipe are fixedly connected to the two sides of the filter shell respectively, and a sealing cavity is formed in the filter shell. By arranging the adjusting assembly, when natural gas enters the filter element to be filtered, the natural gas can directly make contact with part of the space of the filter element, when the filter element is used for a long time, the filtering effect becomes poor, the pressure of the natural gas in the filter element is increased, and the sliding seat in the filter element is pushed to slide upwards; the self-adaptive filtering system can adapt to different natural gas flows and impurity contents, when impurities are increased and the filter element is blocked, the system automatically expands the filtering space, continuous and stable supply of the natural gas is ensured, and interruption or efficiency reduction caused by blockage of the filter element is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas filtering, and more particularly to a natural gas filtering device. Background Art

[0002] A natural gas filter is a device used to process impurities in natural gas. Its main function is to remove solid particles, liquid droplets, moisture, and other harmful substances from the natural gas flow. The filter element is the core component of the filter device and is usually made of porous materials such as ceramics, stainless steel wire mesh, synthetic fibers, etc. The filter element is designed to allow natural gas to pass through its pores while preventing solid particles and liquid droplets from passing through. The housing is the external structure that protects the filter element and is usually made of metal or high-strength plastic. The housing needs to be designed to ensure that it can withstand high pressure and harsh environmental conditions. The inlet pipe introduces untreated natural gas into the filter device, and the outlet pipe transports the treated clean natural gas to the downstream system.

[0003] The traditional natural gas filter element structure design is relatively simple. Its working process is that natural gas enters the filter element through the air inlet pipe, is filtered by the filter element, and then flows out through the air outlet pipe. However, this structure has obvious disadvantages during long-term use. As the filter element is used for a longer time, solid particles and liquid impurities gradually accumulate on the filter element, causing the filter element to become clogged. This clogging phenomenon will significantly reduce the flow of natural gas, and thus have a negative impact on the filtration efficiency. Due to the clogging of the filter element, the speed and flow of natural gas passing through the filter element will be reduced, making it impossible for downstream equipment to obtain sufficient natural gas supply, thereby affecting the normal operation and performance of the entire system. At the same time, the clogging of the filter element will also increase the resistance of natural gas passing through, causing the pressure upstream of the filter element to increase. This excessive pressure will impose an additional burden on the connecting pipelines and equipment, increasing the risk of leakage and failure. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a natural gas filtering device to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a natural gas filtering device, comprising a filter housing, a pressure plate fixedly connected to the top of the filter housing by bolts, and an air inlet pipe and an air outlet pipe fixedly connected to both sides of the filter housing, wherein a sealed cavity is defined within the filter housing, a top seat is attached to the lower surface of the pressure plate, a filter element is fixedly connected to the bottom of the top seat, a sealing ring is fixedly connected to the surface of the filter element away from the top seat, and an adjustment assembly is installed within the filter element;

[0006] The adjusting assembly includes a fixed rod fixedly connected to the bottom center of the top seat, the outer surface of the fixed rod is movably sleeved with a sliding seat, a sliding groove is provided at the inner center of the sliding seat, steel balls are movably installed inside the sliding seat at equal intervals, a sealing groove is provided inside the sliding seat, the internal sealing sliding connection of the sealing groove is an annular sealing plate, the bottom of the annular sealing plate is fixedly connected to a swivel, an annular airbag connected to the interior of the sealing groove is fixedly installed on the outer surface of the sliding seat, limiting grooves connected to the interior of the sealing groove are equidistantly provided inside the sliding seat, the internal sealing sliding connection of the limiting groove is a limiting plate, and the surface of the limiting plate is fixedly connected to a stop block.

[0007] Furthermore, a touch switch is fixedly installed inside the top seat, the input end of the touch switch extends into the interior of the filter element, and a buzzer electrically connected to the touch switch is fixedly installed on the outer surface of the filter housing.

[0008] Furthermore, the bottom of the filter element is sealed to the inner bottom end of the sealing cavity through a sealing ring, the surface of the steel ball is rollingly connected to the outer surface of the fixing rod, and the output end of the air intake pipe extends to the interior of the filter element and is connected to the interior of the filter element.

[0009] Furthermore, one end of the stop block away from the limiting plate is arc-shaped, and the arc-shaped surface of the stop block abuts against the surface of the fixing rod.

[0010] Furthermore, one end of the rotating ring away from the annular sealing plate extends to the bottom of the sliding seat, and the outer surface of the rotating ring is threadedly connected to the inside of the sliding seat.

[0011] Furthermore, the surface of the annular airbag is fitted on the inner wall of the filter element, the bottom end of the inner wall of the chute is fixedly connected with a sealing ring, and the outer surface of the sealing ring is sealingly fitted on the outer surface of the fixing rod.

[0012] The technical effects and advantages of this utility model are:

[0013] 1. The utility model is provided with an adjustment component. When natural gas enters the filter element for filtration, the natural gas will directly contact part of the space of the filter element. When the filter element has been used for too long and the filtering effect becomes poor, the natural gas pressure inside the filter element increases, and pushes the sliding seat inside the filter element to slide upward, so that the unblocked filter holes above the filter element participate in the filtration. This adaptive filtration system can adapt to different natural gas flow rates and impurity contents. When the increase of impurities causes the filter element to be blocked, the system automatically expands the filtration space to ensure a continuous and stable supply of natural gas, reduce the interruption or efficiency reduction caused by filter element blockage, and enhance stability.

[0014] 2. The utility model is provided with a touch switch and a buzzer. When the sliding seat slides upward to a certain position, the top of the sliding seat will abut against the input end of the touch switch, which means that the filter element has reached the level that needs to be replaced. By starting the buzzer to send a warning signal, the staff is reminded to replace the filter element in time to prevent the filter element from being excessively blocked and causing a decrease in filtration efficiency or system failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model

[0016] Figure 2 It is a longitudinal sectional view of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the top seat and the adjustment assembly in the utility model;

[0018] Figure 4 It is a cross-sectional view of the adjustment component in the present invention.

[0019] The accompanying drawings are marked as follows: 1. filter housing; 2. pressure plate; 3. air inlet pipe; 4. air outlet pipe; 5. sealing chamber; 6. top seat; 7. filter element; 8. sealing ring; 9. adjustment assembly; 91. fixing rod; 92. sliding seat; 93. slide groove; 94. steel ball; 95. sealing groove; 96. annular sealing plate; 97. swivel; 98. annular airbag; 99. limit groove; 910. limit plate; 911. block; 10. touch switch; 11. buzzer. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation. The structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0021] Figures 1-4 This is the best embodiment of the present invention, Figures 1-4 The utility model is further described.

[0022] Specifically, a natural gas filtering device includes a filter housing 1, a pressure plate 2 fixedly connected to the top of the filter housing 1 by bolts, and an air inlet pipe 3 and an air outlet pipe 4 fixedly connected to both sides of the filter housing 1. The filter housing 1 has a sealed cavity 5 defined therein. A top seat 6 is attached to the lower surface of the pressure plate 2. A filter element 7 is fixedly connected to the bottom of the top seat 6. A sealing ring 8 is fixedly connected to the surface of the filter element 7 away from the top seat 6. An adjustment assembly 9 is installed within the filter element 7.

[0023] The adjusting assembly 9 includes a fixed rod 91 fixedly connected to the bottom center of the top seat 6, and a sliding seat 92 is movably sleeved on the outer surface of the fixed rod 91. A sliding groove 93 is provided through the inner center of the sliding seat 92, and steel balls 94 are movably installed inside the sliding seat 92 at equal intervals. A sealing groove 95 is provided inside the sliding seat 92, and the inner sealing sliding connection of the sealing groove 95 is an annular sealing plate 96. The bottom of the annular sealing plate 96 is fixedly connected to a swivel 97, and an annular airbag 98 connected to the inner part of the sealing groove 95 is fixedly installed on the outer surface of the sliding seat 92. Limiting grooves 99 connected to the inner part of the sealing groove 95 are equidistantly provided inside the sliding seat 92, and the inner sealing sliding connection of the limiting groove 99 is a limiting plate 910, and the surface of the limiting plate 910 is fixedly connected to a stop block 911.

[0024] In this embodiment, by providing an adjustment component 9, when natural gas enters the filter element 7 for filtration, the natural gas will directly contact part of the space of the filter element 7. When the filter element 7 has been used for too long and the filtering effect becomes poor, the natural gas pressure inside the filter element 7 increases, and pushes the sliding seat 92 inside the filter element 7 to slide upward, so that the unblocked filter holes above the filter element 7 participate in the filtration. This adaptive filtration system can adapt to different natural gas flow rates and impurity contents. When the increase of impurities causes the filter element to be blocked, the system automatically expands the filtration space to ensure a continuous and stable supply of natural gas, reduce interruptions or efficiency reductions caused by filter element blockage, and enhance stability.

[0025] Specifically, a touch switch 10 is fixedly installed inside the top seat 6 , the input end of the touch switch 10 extends into the interior of the filter element 7 , and a buzzer 11 electrically connected to the touch switch 10 is fixedly installed on the outer surface of the filter housing 1 .

[0026] In this embodiment, by setting a touch switch 10 and a buzzer 11, when the sliding seat 92 slides upward to a certain position, the top of the sliding seat 92 will abut against the input end of the touch switch 10, which means that the filter element 7 has reached the level that needs to be replaced. By starting the buzzer 11 to send a warning signal, the staff is reminded to replace the filter element 7 in time to prevent the filter element 7 from being excessively blocked and causing a decrease in filtration efficiency or system failure.

[0027] Specifically, the bottom of the filter element 7 is sealed and fitted to the inner bottom end of the sealing cavity 5 through the sealing ring 8, the surface of the steel ball 94 is rollingly connected to the outer surface of the fixing rod 91, and the output end of the air intake pipe 3 extends to the interior of the filter element 7 and is connected to the interior of the filter element 7.

[0028] In this embodiment, by providing the sealing ring 8, it is possible to prevent impurities inside the filter element 7 from overflowing into the space between the filter element 7 and the sealing cavity 5, thereby enhancing the sealing performance.

[0029] Specifically, one end of the stop block 911 away from the limiting plate 910 is arc-shaped, and the arc-shaped surface of the stop block 911 abuts against the surface of the fixing rod 91 .

[0030] In this embodiment, by providing the stop block 911 , the longitudinal sliding damping of the sliding seat 92 can be controlled.

[0031] Specifically, one end of the swivel 97 away from the annular sealing plate 96 extends to the bottom of the sliding seat 92 , and the outer surface of the swivel 97 is threadedly connected to the interior of the sliding seat 92 .

[0032] In this embodiment, by rotating the rotating ring 97 , the annular sealing plate 96 can be driven to slide up and down, and the internal pressure of the sealing groove 95 can be adjusted.

[0033] Specifically, the surface of the annular airbag 98 is in contact with the inner wall of the filter element 7 , and a sealing ring is fixedly connected to the bottom end of the inner wall of the chute 93 , and the outer surface of the sealing ring is in contact with the outer surface of the fixing rod 91 .

[0034] In this embodiment, by providing the annular airbag 98, impurities on the bottom of the filter element 7 located at the sliding seat 92 can be prevented from entering the space above the filter element 7 located at the sliding seat 92, thereby enhancing the sealing performance.

[0035] The working principle and use process of the present invention are as follows: when in use, natural gas enters the filter element 7 through the air inlet pipe 3, then enters the sealed cavity 5 after being filtered by the filter element 7, and finally flows out through the air outlet pipe 4. When the filter element 7 has been used for too long and the surface filtration performance has deteriorated, the natural gas enters the filter element 7 through the air inlet pipe 3, and the internal pressure of the filter element 7 will increase. At this time, the sliding seat 92 will slide upward inside the fixed rod 91 and allow the unblocked filter holes above the filter element 7 to participate in the filtration. This adaptive filtration system can adapt to different natural gas flow rates and impurity contents. When the increase of impurities causes the filter element to be blocked, the system automatically expands the filtration space to ensure a continuous and stable supply of natural gas, reduce the interruption or efficiency drop caused by filter element blockage, and enhance stability. By rotating the rotating ring 97. The rotating ring 97 drives the annular sealing plate 96 to slide up and down inside the sealing groove 95, and can adjust the friction between the annular airbag 98 and the inner wall of the filter element 7, as well as the friction between the block 911 and the fixed rod 91. Therefore, the size of the pressure applied to the filter element 7 after being blocked can be used to control the sliding response speed of the sliding seat 92, so as to cope with the service life of the filter element 7 and the filtration efficiency of the filter element 7. When the sliding seat 92 slides upward to a certain position, the top of the sliding seat 92 will abut against the input end of the touch switch 10, which means that the filter element 7 has reached the level that needs to be replaced. By starting the buzzer 11 to send a warning signal, the staff is reminded to replace the filter element 7 in time to prevent the filtration efficiency from decreasing or the system from failing due to excessive blockage of the filter element 7.

[0036] The above description is merely a preferred embodiment of the present invention and does not constitute any other limitation to the present invention. Any person skilled in the art may utilize the above-disclosed technical content to modify or remodel the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A natural gas filtering device comprising a filter housing (1), a pressure plate (2) fixedly connected to the top of the filter housing (1) by bolts, and an air inlet pipe (3) and an air outlet pipe (4) fixedly connected to both sides of the filter housing (1), characterized in that: A sealed cavity (5) is provided inside the filter housing (1), a top seat (6) is attached to the lower surface of the pressure plate (2), a filter element (7) is fixedly connected to the bottom of the top seat (6), a sealing ring (8) is fixedly connected to the surface of the filter element (7) away from the top seat (6), and an adjustment component (9) is installed inside the filter element (7); The adjusting assembly (9) includes a fixed rod (91) fixedly connected to the bottom center of the top seat (6), the outer surface of the fixed rod (91) is movably sleeved with a sliding seat (92), the inner center of the sliding seat (92) is provided with a sliding groove (93), the inner part of the sliding seat (92) is equidistantly and movably installed with a steel ball (94), the inner part of the sliding seat (92) is provided with a sealing groove (95), the inner sealing and sliding connection of the sealing groove (95) is an annular sealing plate (96), the bottom of the annular sealing plate (96) is fixedly connected with a rotating ring (97), the outer surface of the sliding seat (92) is fixedly provided with an annular airbag (98) connected to the inner part of the sealing groove (95), the inner part of the sliding seat (92) is provided with a limiting groove (99) connected to the inner part of the sealing groove (95) at an equal distance, the inner part of the limiting groove (99) is sealed and slidably connected to a limiting plate (910), and the surface of the limiting plate (910) is fixedly connected with a stop block (911).

2. A natural gas filtering device according to claim 1, characterized in that: A touch switch (10) is fixedly mounted inside the top seat (6), an input end of the touch switch (10) extends into the interior of the filter element (7), and a buzzer (11) electrically connected to the touch switch (10) is fixedly mounted on the outer surface of the filter housing (1).

3. The natural gas filtering device according to claim 1, characterized in that: The bottom of the filter element (7) is sealed and attached to the inner bottom end of the sealing cavity (5) through a sealing ring (8), the surface of the steel ball (94) is rollingly connected to the outer surface of the fixing rod (91), and the output end of the air inlet pipe (3) extends to the interior of the filter element (7) and is connected to the interior of the filter element (7).

4. The natural gas filtering device according to claim 1, characterized in that: One end of the stop block (911) away from the limiting plate (910) is arc-shaped, and the arc-shaped surface of the stop block (911) abuts against the surface of the fixing rod (91).

5. The natural gas filtering device according to claim 1, characterized in that: One end of the rotating ring (97) away from the annular sealing plate (96) extends to the bottom of the sliding seat (92), and the outer surface of the rotating ring (97) is threadedly connected to the inside of the sliding seat (92).

6. The natural gas filtering device according to claim 1, characterized in that: The surface of the annular airbag (98) is fitted to the inner wall of the filter element (7), and a sealing ring is fixedly connected to the bottom end of the inner wall of the slide groove (93), and the outer surface of the sealing ring is sealed to the outer surface of the fixing rod (91).

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