Device for separating impurities from natural gas

Abstract

The utility model discloses a device for separating impurities from natural gas, which comprises two filter bins with openings on the right sides, the left sides of the two filter bins are communicated and fixed with L-shaped pipes, and the close ends of the two L-shaped pipes are communicated and fixed with the same gas direction switching indication cleaning component. A natural gas inlet connecting pipe is fixedly communicated with the left side of the gas direction switching indication cleaning assembly. According to the utility model, a series of structures are arranged, so that the ventilation filtering direction can be automatically and timely switched for continuous ventilation filtering work when one filtering part is blocked, an alarm can be automatically given to remind personnel to timely clean during switching, the personnel can conveniently and timely know and process, and the ventilation filtering and cleaning modes are alternately performed through up-down switching, so that the working efficiency is improved. Slag removal work can be carried out without shutdown, shutdown-free slag removal work is carried out while normal operation of ventilation work is not affected, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas impurity separation, in particular to a device for separating impurities from natural gas. Background Art

[0002] Natural gas refers to a mixture of hydrocarbon and non-hydrocarbon gases naturally found in the ground. During the transportation process of gas pipelines, solid impurities such as solid slag, oxide slag, and debris in the gas source and pipelines will affect the gas transmission quality and damage some metering and pressure regulating equipment on the pipeline. Therefore, gas filtration equipment must be installed in front of each receiving and sending station or important equipment to ensure the safety of downstream equipment.

[0003] According to the search report of the new search agency, announcement number CN214437374U discloses a natural gas filter separator that is convenient for cleaning impurities, including a filter chamber, an air inlet pipe is provided on the left side of the filter chamber, and an air outlet pipe is provided on the right side of the filter chamber, an air inlet channel is provided on one side of the inlet pipe, and a sealing plug is provided inside the air inlet channel, mounting bases are provided on the upper and lower sides of the sealing plug, and a connecting rotating rod is provided in the middle of the sealing plug, a rotating base is provided above the inlet channel, and a rotating rod is provided above the rotating base, a threaded base is provided on the outer surface of the rotating rod, a control valve is provided above the threaded base, and a connecting block is provided above the filter chamber; the natural gas filter separator that is convenient for cleaning impurities can close the inlet channel and the air outlet channel by the control valve and the piston, so that the interior of the filter chamber is in a completely sealed state, and at the same time, the lever principle is adopted to remove the filter plate to clean impurities and maintain the filter plate.

[0004] The above-mentioned technology discloses a natural gas filter separator that is convenient for cleaning impurities. It uses a filter plate to filter and intercept solid impurities in natural gas to achieve a separation effect. Subsequently, the air inlet and outlet channels are closed by a control valve and a piston, and the filter plate is removed for cleaning. However, there are the following deficiencies in use:

[0005] The method of closing the air inlet and outlet channels and disassembling and cleaning the filter plates requires a long downtime, and cannot perform slag cleaning work without affecting the normal operation of ventilation work, thereby reducing work efficiency; in addition, when the filter plates are blocked, it cannot automatically handle and remind personnel in time, which is inconvenient for personnel to know and handle in time; improvement is needed. In view of this, the present application proposes a device for separating impurities from natural gas to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a device for separating impurities from natural gas to solve the problems raised in the above background technology.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a device that natural gas separates impurity, including two right side opening arrangement's filter bin, the left side of two filter bin all is fixed with L shape pipe, the same gas direction switching instruction cleaning assembly is fixedly connected in the one end of two L shape pipes, the left side of gas direction switching instruction cleaning assembly is fixedly connected with natural gas inlet pipe, the same output shaft and gas direction switching instruction cleaning assembly fixed connection's servo brake motor is fixedly installed between the side of two filter bin, the bottom of filter bin in the top is fixedly installed with PLC controller, the left side of PLC controller is fixed and electric connection has audible -visual alarm, install filter assembly on filter bin, the right side of two filter bin similar side all is fixed with check valve, the same speed measurement ventilation component is fixedly connected with the side of two check valves similar and is export, the right end of speed measurement ventilation component is fixedly connected with exhaust pipe, servo brake motor and speed measurement ventilation component all are electric connection with PLC controller, the natural gas inlet pipe for being connected with natural gas delivery pipeline is set to supply the natural gas that separates impurity automatic sustained input, gas direction switching instruction cleaning assembly is used for switching the ventilation direction between two L shape pipes when servo brake motor starts, filter assembly is used for filtering solid impurities of natural gas that is passed into corresponding filter bin, the check valve for is set to supply the natural gas that filters out and exports unidirectionally, speed measurement ventilation component is used for measuring the natural gas flow rate that exports and is given PLC controller flow rate value, utilizes PLC controller to control servo brake motor to start half circle to switch gas direction when the flow rate value is reduced to below the preset value due to impurity blockage, realizes the automatic alternate use of upper and lower two parts, and control audible -visual alarm opens and warns personnel to clean, utilizes the alternate use of upper and lower and warning, personnel is convenient to the impurity of filtering and carries out the cleaning work of exempting from stop.

[0008] Preferably, the gas direction switching instruction cleaning assembly comprises a spherical sleeve fixedly connected between the two L-shaped pipes, a ball movably sleeved in the spherical sleeve, an L-shaped channel communicated with the upper L-shaped pipe formed in the left side of the ball, the natural gas inlet pipe embeddedly fixed on the left side of the spherical sleeve, the right end of the natural gas inlet pipe extending into the L-shaped channel and communicated with the L-shaped channel, a rotating shaft fixedly connected to the right side of the ball, the spherical sleeve rotatably sleeved on the rotating shaft, a pointer fixedly connected to the bottom of the rotating shaft, the pointer aligned with the lower filter bin, and the right end of the rotating shaft fixedly connected to the left end of the output shaft of the servo brake motor.

[0009] Preferably, the filter assembly comprises a cylindrical filter screen movably sleeved in the corresponding filter bin, the right side of the cylindrical filter screen being provided as a blocking structure, a connecting shaft fixedly connected to the right side of the cylindrical filter screen, an internally threaded pipe cover fixedly connected to the right end of the connecting shaft, the internally threaded pipe cover threadedly sleeved on the corresponding filter bin, an arc-shaped handle fixedly connected to the right side of the internally threaded pipe cover, and the check valve located on the right side of the corresponding cylindrical filter screen.

[0010] Preferably, the gas flow speed measuring assembly comprises a three-way pipe communicated and fixed between two one-way valves, a gas flow speed sensor is communicated and fixed on the right side of the three-way pipe, the right side of the gas flow speed sensor is communicated and fixed with the left end of the exhaust pipe, and the gas flow speed sensor is electrically connected with the PLC controller.

[0011] Preferably, the spherical sleeve is composed of two half-spherical sleeves welded together, a sealing rubber skin is fixedly bonded in the spherical sleeve, the sealing rubber skin is in movable contact with the outer side of the spherical body, and a communication hole is formed in the top and bottom of the sealing rubber skin and is communicated with the corresponding L-shaped pipe.

[0012] Preferably, a sealing rubber gasket is fixedly bonded on the right inner wall of the internally-threaded pipe cover, the left side of the sealing rubber gasket is in extrusion contact with the right side of the corresponding filter bin, and an external thread is formed on the right outer side of the filter bin and is screwed with the corresponding internally-threaded pipe cover.

[0013] Preferably, a support plate is fixedly connected between the sides close to the two filter bins, and the servo brake motor is fixedly connected to the left side of the support plate.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The L-shaped pipe, filter bin and filter assembly are arranged in cooperation, so that the solid impurities in the natural gas can be filtered and intercepted, and the solid impurities and the natural gas can be separated.

[0016] 2. The PLC controller, L-shaped pipe, filter bin, one-way valve, servo brake motor, gas direction switching and cleaning assembly, filter assembly and gas flow speed measuring assembly are arranged in cooperation, so that two upper and lower air filtering channels can be formed, and when blockage occurs in one filter, the air filtering direction can be automatically switched in time for continuous air filtering work, the air filtering and cleaning are alternately performed through up-down switching, the machine does not need to be stopped for slag cleaning, the slag cleaning work can be performed without affecting the normal operation of the air filtering work, and the working efficiency is improved.

[0017] 3. The PLC controller and the audible and visual alarm are arranged in cooperation, so that the personnel can be reminded in time for cleaning through the alarm when the air filtering direction is automatically switched, and the personnel can know the treatment in time.

[0018] The utility model is provided with a series of structures, so that when blockage occurs in one filter, the air filtering direction can be automatically switched in time for continuous air filtering work, the personnel can be reminded in time for cleaning through automatic alarm when the air filtering direction is switched, the personnel can know the treatment in time, the air filtering and cleaning are alternately performed through up-down switching, the machine does not need to be stopped for slag cleaning, the slag cleaning work can be performed without affecting the normal operation of the air filtering work, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structure schematic view of a natural gas impurity separation device is provided in the utility model;

[0020] Figure 2 A Figure 1 Sectional view structure schematic view;

[0021] Figure 3 A filter assembly three-dimensional structure schematic view of a natural gas impurity separation device is provided in the utility model.

[0022] In the drawing: 100, natural gas inlet connection pipe; 200, exhaust connection pipe; 1, spherical sleeve; 2, ball; 3, L-shaped channel; 4, L-shaped pipe; 5, filter bin; 6, cylindrical filter screen; 7, connecting shaft; 8, internally threaded pipe cover; 9, tee; 10, check valve; 11, gas flow rate sensor; 12, servo brake motor; 13, rotating shaft; 14, pointer; 15, PLC controller; 16, audible and visual alarm. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] For example, Figures 1 to 3As shown, the device for separating impurities from natural gas provided by the embodiment comprises two filtering bins 5 with openings on the right side, L-shaped pipes 4 are fixedly connected to the left side of the two filtering bins 5, the same gas direction switching indication cleaning assembly is fixedly connected to the proximal end of the two L-shaped pipes 4, the natural gas inlet pipe 100 is fixedly connected to the left side of the gas direction switching indication cleaning assembly, the same output shaft and the servo brake motor 12 fixedly connected with the gas direction switching indication cleaning assembly are fixedly installed between the proximal sides of the two filtering bins 5, the servo brake motor 12 is fixedly connected to the left side of the support plate fixedly connected between the proximal sides of the two filtering bins 5, the PLC controller 15 is fixedly installed at the bottom of the upper filtering bin 5, the sound and light alarm 16 is fixedly and electrically connected to the left side of the PLC controller 15, the filtering assembly is installed on the filtering bin 5, the same one-way valve 10 is fixedly connected to the right side of the proximal side of the two filtering bins 5, the same speed measuring ventilation assembly is fixedly connected to the outlet on the proximal side of the two one-way valves 10, the exhaust pipe 200 is fixedly connected to the right end of the speed measuring ventilation assembly, the servo brake motor 12 and the speed measuring ventilation assembly are electrically connected with the PLC controller 15, the natural gas inlet pipe 100 is used to be connected with the natural gas conveying pipeline to automatically and continuously input the natural gas with impurities to be separated, the gas direction switching indication cleaning assembly is used to switch the ventilation direction between the two L-shaped pipes 4 when the servo brake motor 12 is started, the filtering assembly is used to filter the solid impurities in the natural gas entering the corresponding filtering bin 5, the one-way valve 10 is used to allow the filtered natural gas to flow out in one direction, the speed measuring ventilation assembly is used to measure the flow rate of the outflowing natural gas and transmit the flow rate value to the PLC controller 15, the PLC controller 15 is used to control the servo brake motor 12 to start half a circle to switch the gas direction when the flow rate value is reduced to below the preset value due to the blockage of impurities, the automatic alternate use of the upper and lower parts is realized, and the sound and light alarm 16 is controlled to be turned on to alarm and remind personnel to clean, the upper and lower alternate use is used in cooperation with the alarm reminder, so that personnel can clean the filtered impurities without stopping the machine.

[0025] Specifically, the gas direction switching indication cleaning assembly comprises a spherical sleeve 1 fixedly connected between two L-shaped pipes 4, a ball 2 movably sleeved in the spherical sleeve 1, wherein the spherical sleeve 1 is composed of two half-spherical sleeves welded together, a sealing rubber is fixedly bonded in the spherical sleeve 1, the sealing rubber movably contacts the outer side of the ball 2, the top and bottom of the sealing rubber are provided with communication holes, the communication holes are communicated with the corresponding L-shaped pipes 4, the sealing rubber is arranged to achieve the effect of movable sealing between the outer side of the ball 2 and the spherical sleeve 1, an L-shaped channel 3 is formed in the left side of the ball 2 and communicated with the upper L-shaped pipe 4, a natural gas inlet pipe 100 is fixedly embedded in the left side of the spherical sleeve 1, the right end of the natural gas inlet pipe 100 extends into the L-shaped channel 3 and is communicated with the L-shaped channel 3, a rotating shaft 13 is fixedly connected to the right side of the ball 2, the spherical sleeve 1 is movably sleeved on the rotating shaft 13, wherein a circular hole is formed in the right side of the spherical sleeve 1, a sealing bearing is fixedly sleeved in the circular hole, the inner ring of the sealing bearing is fixedly sleeved with the outer side of the rotating shaft 13, achieving the effect of rotatingly mounting the rotating shaft 13, a pointer 14 is fixedly connected to the bottom of the rotating shaft 13, the pointer 14 is aligned with the lower filter bin 5, the right end of the rotating shaft 13 is fixedly connected with the left end of the output shaft of a servo brake motor 12; the spherical sleeve 1, the ball 2, the L-shaped channel 3, the rotating shaft 13 and the pointer 14 are arranged to cooperate, the servo brake motor 12 is started half a circle at a time and drives the rotating shaft 13 to rotate half a circle, the rotating shaft 13 drives the ball 2 to rotate half a circle, the ball 2 drives the L-shaped channel 3 to rotate downward and be communicated with the lower L-shaped pipe 4, achieving the effect of automatically switching the gas direction between the two L-shaped pipes 4, in addition, the rotating shaft 13 also drives the pointer 14 to rotate when rotating, so that the pointer 14 indicates upward when downward ventilation and indicates downward when upward ventilation, so that the ventilation direction is opposite to the direction indicated by the pointer 14, that is, the direction indicated by the pointer 14 represents the position that needs to be cleaned by personnel, which is convenient for personnel to accurately judge and avoid misoperation.

[0026] Further, the filtering assembly comprises a cylindrical filter screen 6 movably sleeved in the corresponding filter bin 5, the right side of the cylindrical filter screen 6 is provided as a blocking structure, the right side of the cylindrical filter screen 6 is fixedly connected with a connecting shaft 7, the right end of the connecting shaft 7 is fixedly connected with an internally threaded pipe cover 8, the internally threaded pipe cover 8 is threadedly sleeved on the corresponding filter bin 5, a sealing rubber gasket is adhesively fixed on the right side inner wall of the internally threaded pipe cover 8, the left side of the sealing rubber gasket is in extrusion contact with the right side of the corresponding filter bin 5, wherein an external thread is formed on the right outer side of the filter bin 5 and is threadedly connected with the corresponding internally threaded pipe cover 8, by virtue of the threadedly connected relationship, the internally threaded pipe cover 8 and the filter bin 5 are conveniently screwed and unscrewed by simple rotation, the right side of the internally threaded pipe cover 8 is fixedly connected with an arc-shaped handle, and the one-way valve 10 is located at the right side of the corresponding cylindrical filter screen 6; by cooperation of the cylindrical filter screen 6, the connecting shaft 7, the internally threaded pipe cover 8 and the arc-shaped handle, when the natural gas is introduced into the filter bin 5 through the corresponding L-shaped pipe 4, the solid particle impurities such as iron filings in the natural gas are filtered, intercepted and collected in the cylindrical filter screen 6, and the filtered natural gas is discharged into the corresponding one-way valve 10, so that the effect of filtering and separating the solid impurities in the natural gas is achieved.

[0027] Further, the speed-measuring ventilation assembly comprises a three-way pipe 9 fixedly connected in communication between the two one-way valves 10, the right side of the three-way pipe 9 is fixedly connected with a gas flow rate sensor 11, the right side of the gas flow rate sensor 11 is fixedly connected in communication with the left end of the exhaust pipe 200, and the gas flow rate sensor 11 is electrically connected with the PLC controller 15; by cooperation of the three-way pipe 9 and the gas flow rate sensor 11, the natural gas unidirectionally discharged through the one-way valve 10 enters the three-way pipe 9, and then enters the exhaust pipe 200 through the gas flow rate sensor 11, the gas flow rate sensor 11 detects the flow rate of the natural gas in real time and transmits the flow rate value to the PLC controller 15, the PLC controller 15 is used for pre-setting the flow rate value for starting the servo brake motor 12 and the sound-light alarm 16 according to the cleaning requirement, and the servo brake motor 12 is set to be started by half a circle each time, when the ventilation flow rate is reduced to below the preset value due to blockage of the cylindrical filter screen 6, the PLC controller 15 controls the servo brake motor 12 to be automatically started by half a circle, the gas direction is switched, the sound-light alarm 16 is controlled to be started to perform alarm and reminding, the gas direction is automatically switched, the natural gas is switched to the lower cylindrical filter screen 6 for filtering, then the internally threaded pipe cover 8 on the upper side is turned to remove the cylindrical filter screen 6 on the upper side, and then the cleaning work is performed, after cleaning, the cylindrical filter screen 6 is installed back to the original position, when the flow rate is reduced to the preset value again, the PLC controller 15 controls the alarm and switches the gas direction again, and the same operation is repeated, so that the effect of alternately using the upper and lower cylindrical filter screens 6 for filtering and cleaning is achieved, the upper and lower cylindrical filter screens 6 are alternately used, the alarm is reminded, the impurities are cleaned without stopping the machine, the machine is used without stopping, and the work efficiency is improved.

[0028] The use method of the embodiment is: according to the cleaning requirement, the PLC controller 15 is used to pre-set the flow rate value of the servo brake motor 12 and the sound-light alarm 16, and set the servo brake motor 12 to be half a circle each time, the natural gas inlet pipe 100 is connected with the external natural gas pipeline for automatic and continuous input of the natural gas to be separated from impurities, and the exhaust pipe 200 is connected with the external natural gas pipeline or the metering equipment inlet, the natural gas first enters the L-shaped channel 3, then enters the upper filter bin 5 through the upper L-shaped pipe 4, the solid particle impurities such as iron filings in the natural gas are filtered and intercepted by the upper cylindrical filter screen 6 and collected in the inside, the filtered natural gas is discharged into the upper one-way valve 10, then enters the three-way pipe 9, and then enters the exhaust pipe 200 through the gas flow sensor 11, the gas flow sensor 11 detects the flow rate of the natural gas in real time and transmits the flow rate value to the PLC controller 15, when the flow rate is reduced to below the preset value due to the blockage of the cylindrical filter screen 6, the PLC controller 15 controls the servo brake motor 12 to automatically start half a circle and controls the sound-light alarm 16 to open, when the servo brake motor 12 starts half a circle, the rotating shaft 13 is driven to rotate half a circle, the rotating shaft 13 drives the ball 2 to rotate half a circle, the ball 2 drives the L-shaped channel 3 to rotate half a circle to be downward and communicate with the lower L-shaped pipe 4, at this time, the natural gas changes to enter the lower filter bin 5 through the lower L-shaped pipe 4 and is filtered by the lower cylindrical filter screen 6, at this time, the opened sound-light alarm 16 alarms to remind personnel to clean, when the rotating shaft 13 rotates, the pointer 14 also rotates, so that the pointer 14 changes to indicate the upper side, which is used to accurately remind personnel to clean the upper cylindrical filter screen 6, at this time, personnel can rotate the upper internal thread pipe cover 8 to separate it from the upper filter bin 5, move the upper internal thread pipe cover 8 to the right to drive the upper cylindrical filter screen 6 to move out through the corresponding connecting shaft 7, so that the impurities can be cleaned, after cleaning, the upper cylindrical filter screen 6 is inserted into the upper filter bin 5, and the upper internal thread pipe cover 8 is screwed and fixed with the upper filter bin 5, and the cleaning is completed; as the filtering work continues, when the lower cylindrical filter screen 6 is blocked and the flow rate is reduced to below the preset value, the PLC controller 15 controls the servo brake motor 12 to start half a circle again and controls the sound-light alarm 16 to open, so as to switch the air filtering direction and alarm again, and the same is repeated, so that the air filtering direction is automatically switched in time when one filter is blocked to continue the air filtering effect, and the personnel can be automatically alarmed to clean in time when the switching is performed, the personnel can know the treatment in time, and the upper and lower switching is used to alternately filter and clean the air, so that the cleaning work can be performed without stopping, the cleaning work is performed without stopping the air work, and the working efficiency is improved.

[0029] Among them, the PLC controller 15, the audible and visual alarm 16, the servo brake motor 12 and the gas flow rate sensor 11 in the utility model are well known to those skilled in the art, belong to conventional means or common general knowledge, and those skilled in the art can make any selection according to their needs or convenience, in addition, the flow rate value transmitted by the gas flow rate sensor 11 is received by the PLC controller 15 and the audible and visual alarm 16 and the servo brake motor 12 are controlled to be turned on when being lower than the preset value, which is a basic numerical control parameter control mode well known to those skilled in the art, belongs to conventional means or common general knowledge, and will not be described here.

[0030] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for separating impurities from natural gas, comprising two filter chambers (5) with openings on the right side, characterized in that: The left sides of the two filter chambers (5) are both connected and fixed with an L-shaped tube (4), the adjacent ends of the two L-shaped tubes (4) are connected and fixed with a same gas direction switching indication cleaning component, the left side of the gas direction switching indication cleaning component is connected and fixed with a natural gas intake pipe (100), the adjacent sides of the two filter chambers (5) are fixedly installed with a servo brake motor (12) whose output shaft is fixedly connected to the gas direction switching indication cleaning component, and the bottom of the upper filter chamber (5) is fixedly installed with a PLC controller (1 5), a sound and light alarm (16) is fixed and electrically connected to the left side of the PLC controller (15), a filter assembly is installed on the filter chamber (5), and the right side of the two filter chambers (5) adjacent to each other are connected and fixed with a one-way valve (10), and the adjacent sides of the two one-way valves (10) are both outlets and connected and fixed with the same speed measuring ventilation assembly, and the right end of the speed measuring ventilation assembly is connected and fixed with an exhaust pipe (200), and the servo brake motor (12) and the speed measuring ventilation assembly are both electrically connected to the PLC controller (15).

2. The device for separating impurities from natural gas according to claim 1, characterized in that: The gas direction switching indication cleaning component comprises a spherical sleeve (1) connected and fixed between two L-shaped tubes (4); a sphere (2) is provided in a sealed movable sleeve in the spherical sleeve (1); an L-shaped channel (3) connected to the upper L-shaped tube (4) is provided on the left side of the sphere (2); a natural gas intake pipe (100) is embedded and fixed on the left side of the spherical sleeve (1); the right end of the natural gas intake pipe (100) extends into the L-shaped channel (3) and is connected to the L-shaped channel (3); a rotating shaft (13) is fixedly connected to the right side of the sphere (2); the spherical sleeve (1) is rotatably sleeved on the rotating shaft (13); a pointer (14) is fixedly connected to the bottom of the rotating shaft (13); the pointer (14) is aligned with the filter bin (5) below; and the right end of the rotating shaft (13) is fixedly connected to the left end of the output shaft of the servo brake motor (12).

3. The device for separating impurities from natural gas according to claim 1, characterized in that: The filter assembly comprises a cylindrical filter screen (6) movably sleeved in a corresponding filter bin (5); the right side of the cylindrical filter screen (6) is provided with a blocking structure; the right side of the cylindrical filter screen (6) is fixedly connected to a connecting shaft (7); the right end of the connecting shaft (7) is fixedly connected to an internally threaded pipe cover (8); the internally threaded pipe cover (8) is threadedly sleeved on the corresponding filter bin (5); the right side of the internally threaded pipe cover (8) is fixedly connected to an arc-shaped handle; and a one-way valve (10) is located on the right side of the corresponding cylindrical filter screen (6).

4. The device for separating impurities from natural gas according to claim 1, characterized in that: The speed measuring ventilation assembly comprises a three-way pipe (9) connected and fixed between two one-way valves (10); a gas flow rate sensor (11) is connected and fixed on the right side of the three-way pipe (9); the right side of the gas flow rate sensor (11) is connected and fixed to the left end of the exhaust pipe (200); and the gas flow rate sensor (11) is electrically connected to a PLC controller (15).

5. The device for separating impurities from natural gas according to claim 2, characterized in that: The spherical sleeve (1) is composed of two hemispherical sleeves welded together. A sealing rubber is bonded and fixed inside the spherical sleeve (1). The sealing rubber is in active contact with the outer side of the sphere (2). The top and bottom of the sealing rubber are both provided with connecting holes, which are connected to the corresponding L-shaped tube (4).

6. The device for separating impurities from natural gas according to claim 3, characterized in that: A sealing rubber pad is bonded and fixed to the right inner wall of the internally threaded pipe cover (8), and the left side of the sealing rubber pad is in tight contact with the right side of the corresponding filter bin (5). An external thread is provided on the right side of the outer side of the filter bin (5) and is threadedly connected to the corresponding internally threaded pipe cover (8).

7. The device for separating impurities from natural gas according to claim 1, characterized in that: A support plate is fixedly connected between adjacent sides of the two filter bins (5), and a servo brake motor (12) is fixedly connected to the left side of the support plate.

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