Natural gas separation equipment and method

Abstract

The invention belongs to the technical field of natural gas separation, and particularly relates to natural gas separation equipment which comprises a filter cartridge, gas conveying pipes are connected to the left end and the right end of the filter cartridge, a circular ring is rotationally assembled in the filter cartridge, a conical filter cartridge is connected to the left end of the circular ring, and the circular ring is provided with a rotating mechanism. A scraping plate attached to the conical filter cartridge is fixed on the bottom wall of the filter cartridge; natural gas flow is utilized to push a plurality of pneumatic plates to rotate so as to drive a conical filter cartridge to rotate, the conical filter cartridge can be automatically cleaned through a scraper without stopping conveying natural gas, and meanwhile, when equipment works normally, the plurality of pneumatic plates can be turned over, namely, the natural gas flow cannot push the pneumatic plates to rotate, so that the equipment is convenient to use. And the transmission rate of natural gas is not influenced.

Description

Technical Field

[0001] This invention belongs to the field of natural gas separation technology, specifically relating to a natural gas separation device and method. Background Technology

[0002] Natural gas filter separators are three-stage filtration devices that use centrifugal separation, wire mesh filtration, and condensation interception mechanisms to perform coarse filtration, semi-fine filtration, and fine filtration on natural gas. They are highly efficient purification devices for removing solid and liquid impurities from gases. Existing primary coarse filtration equipment is used for the separation of gas-solid systems.

[0003] Existing separation equipment requires stopping the supply of natural gas after the separator separates the gas and solids, and then cleaning the separator, which affects the subsequent supply of natural gas. Summary of the Invention

[0004] The purpose of this invention is to provide a natural gas separation device and method to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A natural gas separation device includes a filter cylinder, with gas transmission pipes connected to both the left and right ends of the filter cylinder. A circular ring is rotatably assembled inside the filter cylinder, and a conical filter cylinder is connected to the left end of the circular ring. The circular ring is provided with a rotating mechanism, and a scraper that fits against the conical filter cylinder is fixed to the bottom wall of the filter cylinder.

[0007] The rotating mechanism includes a rotating shaft rotatably mounted inside the left side of the filter cylinder. A transmission assembly is provided between the rotating shaft and the circular ring. A circular seat is fixed in the middle of the rotating shaft. The circular seat has several evenly distributed slots. A fan plate is rotatably mounted in each of the slots. A push-pull rod is hinged to the rear side of each of the fan plates. An electric push rod is installed on the rear side of the filter cylinder. The output shaft of the electric push rod is connected to a ring plate sleeved on the outside of the rotating shaft. A rotating ring is rotatably mounted on the front side of the ring plate. The rear ends of each of the push-pull rods are hinged to the rotating ring.

[0008] The transmission assembly includes a first transmission wheel connected to the front end of the rotating shaft through the filter cylinder, a first bevel tooth fixed on the outer side of the ring, an annular through groove matching the first bevel tooth on the filter cylinder, a second bevel tooth meshing with the first bevel tooth rotatably mounted on the front side of the filter cylinder, a second transmission wheel fixed on the front side of the second bevel tooth, and a transmission belt between the first transmission wheel and the second transmission wheel.

[0009] The filter cartridge is fixed with a U-shaped connecting block located outside the annular groove.

[0010] The scraper is equipped with a brush on its inner side.

[0011] A slag leakage port is provided in the middle of the bottom wall of the filter cylinder, and a collection box matching the slag leakage port is fixed on the lower side of the filter cylinder.

[0012] A rotating rod is rotatably mounted at the end of the slag outlet. A sealing plate matching the slag outlet is fixed to the rotating rod. A sliding groove is provided at the bottom of the filter cylinder. A sliding block is slidably mounted in the sliding groove. A spring is provided between the right side of the sliding block and the sliding groove. A sliding rod is fixed to the right side of the sliding block. A circular groove is provided on the rotating rod. The sliding rod slides into the circular groove. A spiral groove is provided on the side wall of the circular groove. A guide rod matching the spiral groove is fixed to the sliding rod. A push rod is fixed to the upper side of the sliding block. A pushing block is connected to the lower side of the ring plate. An inclined surface is machined on the right side of the pushing block. The push rod abuts against the inclined surface.

[0013] The bottom of the collection box is equipped with a collection compartment that slides down.

[0014] This invention utilizes natural gas flow to drive several pneumatic plates to rotate, which in turn drives a conical filter cylinder to rotate. The conical filter cylinder can be automatically cleaned by a scraper without stopping the natural gas supply. At the same time, when the equipment is working normally, several pneumatic plates can be flipped over, so that the natural gas flow will not drive it to rotate, and therefore, the natural gas transmission rate will not be affected. Attached Figure Description

[0015] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of a natural gas separation device according to the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of an embodiment of a natural gas separation device according to the present invention. Figure 1 ;

[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0019] Figure 4 This is a schematic cross-sectional view of an embodiment of a natural gas separation device according to the present invention. Figure 2 ;

[0020] Figure 5 This is a schematic cross-sectional view of an embodiment of a natural gas separation device according to the present invention. Figure 3 ;

[0021] Figure 6 for Figure 5 Enlarged structural diagram at point B;

[0022] Figure 7 This is a schematic diagram of the sealing plate of the present invention;

[0023] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point C.

[0024] The symbols for the main components are explained below:

[0025] Filter cylinder 1, air supply pipe 11, circular ring 12, conical filter cylinder 13, scraper 14, rotating shaft 2, circular seat 21, slot 22, pneumatic plate 23, push-pull rod 24, electric push rod 25, ring plate 26, rotating ring 27, first transmission wheel 3, first bevel tooth 31, annular through groove 32, second bevel tooth 33, second transmission wheel 34, transmission belt 35, U-shaped connecting block 36, slag leakage port 4, collection box 41, collection box 411, rotating rod 42, sealing plate 43, sliding groove 44, sliding block 45, spring 451, sliding rod 452, circular groove 453, spiral groove 454, guide rod 455, push rod 46, push block 47. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figure 1-8 As shown, a natural gas separation device of the present invention includes a filter cylinder 1, with gas transmission pipes 11 connected to both the left and right ends of the filter cylinder 1, a ring 12 rotatably mounted inside the filter cylinder 1, a conical filter cylinder 13 connected to the left end of the ring 12, the ring 12 being provided with a rotating mechanism, and a scraper 14 that fits against the conical filter cylinder 13 being fixed to the bottom wall of the filter cylinder 1.

[0028] The rotating mechanism includes a rotating shaft 2 rotatably mounted inside the left side of the filter cylinder 1. A transmission assembly is provided between the rotating shaft 2 and the ring 12. A circular seat 21 is fixed in the middle of the rotating shaft 2. The circular seat 21 has several evenly distributed slots 22. A pneumatic plate 23 is rotatably mounted in each of the slots 22. A push-pull rod 24 is hinged to the rear side of each of the pneumatic plates 23. An electric push rod 25 is installed on the rear side of the filter cylinder 1. The output shaft of the electric push rod 25 is connected to a ring plate 26 sleeved on the outside of the rotating shaft 2. A rotating ring 27 is rotatably mounted on the front side of the ring plate 26. The rear ends of each of the push-pull rods 24 are hinged to the rotating ring 27.

[0029] By activating the electric push rod 25, the ring plate 26 moves backward, which in turn moves the rotating ring 27 backward. The rotating ring 27 pulls the pneumatic plate 23 backward through the push-pull rod 24, causing it to flip. This allows several pneumatic plates 23 to be attached to the rotating shaft 2. In other words, several pneumatic plates 23 are not on the line connecting the left and right gas pipelines 11. When the equipment is operating normally, the transport pipeline delivers natural gas to the left gas pipeline 11, and the natural gas is discharged from the right gas pipeline 11 through the filter cylinder 1. At this time, the airflow will not push several pneumatic plates 23 to rotate. The conical filter cylinder 13 intercepts solid impurities in the natural gas, achieving solid-gas separation.

[0030] When cleaning the conical filter cartridge 13, the electric push rod 25 is activated to move the ring plate 26 forward, which in turn moves the rotating ring 27 forward. This, in turn, pushes the push-pull rod 24 to flip several pneumatic plates 23 forward to a vertical position. Figure 2 As shown, several pneumatic plates 23 are in the unfolded state. The pneumatic plate 23 on the upper side is located on the line connecting the two gas pipelines 11. When natural gas enters the filter cylinder 1 through the left gas pipeline 11, the airflow will push several pneumatic plates 23 to rotate, thereby driving the rotating shaft 2 to rotate. The rotating shaft 2 transmits power to the ring 12 through the transmission component, which in turn drives the conical filter cylinder 13 to rotate. The scraper 14 scrapes off the impurities attached to the surface of the conical filter cylinder 13 to prevent the conical filter cylinder 13 from clogging.

[0031] Therefore, when the equipment is operating normally, the pneumatic plate 23 is attached to the rotating shaft 2, and the natural gas will not drive the pneumatic plate 23 to rotate, thus not affecting the transmission rate of the natural gas. The natural gas can be transmitted normally and the solid impurities are filtered through the conical filter cylinder 13. When cleaning the conical filter cylinder 13, it is only necessary to push the ring plate 26 forward by the electric push rod 25, which will cause several pneumatic plates 23 to flip vertically. When the natural gas enters the filter cylinder 1, it can drive the pneumatic plate 23 to rotate, which will drive the conical filter cylinder 13 to rotate. The scraper 14 cleans the conical filter cylinder 13. The natural gas airflow drives the conical filter cylinder 13 to rotate without the need for additional power output.

[0032] A timer switch can be installed on the outside of the filter cartridge 1, which can control the electric push rod 25 to work at regular intervals to clean the conical filter cartridge 13, thus increasing the degree of automation.

[0033] The transmission assembly includes a first transmission wheel 3 connected to the front end of the rotating shaft 2 through the filter cylinder 1, a first bevel tooth 31 fixed on the outer side of the ring 12, an annular through groove 32 matching the first bevel tooth 31 on the filter cylinder 1, a second bevel tooth 33 meshing with the first bevel tooth 31 rotatably mounted on the front side of the filter cylinder 1, a second transmission wheel 34 fixed on the front side of the second bevel tooth 33, and a transmission belt 35 between the first transmission wheel 3 and the second transmission wheel 34; when the natural gas flow pushes the pneumatic plate 23 to rotate and drives the rotating shaft 2 to rotate, the rotating shaft 2 will drive the first transmission wheel 3 at the front end to rotate, and transmit the power to the second transmission wheel 34 through the transmission belt 35, thereby driving the second bevel tooth 33 to rotate. Since the second bevel tooth 33 meshes and matches with the first bevel tooth 31, it can drive the first bevel tooth 31 to rotate, thereby realizing the rotation of the conical filter cylinder 13. The conical filter cylinder 13 is cleaned by the scraper 14 without the need for continuous output of additional power;

[0034] The annular ring 13 can block the annular groove 32 to ensure the overall sealing of the filter cartridge 1 and prevent natural gas leakage.

[0035] The filter cartridge 1 is fixed with a U-shaped connecting block 36 located outside the annular groove 32; the U-shaped connecting plate 35 is used to fix the filter cartridges 1 on both sides of the annular groove 32, so that the filter cartridges 1 can form a whole.

[0036] The scraper 14 is equipped with a brush on its inner side; the scraper 14 contacts the conical filter cartridge 13 through the brush, which can improve the cleaning effect on the conical filter cartridge 13.

[0037] A slag leakage port 4 is provided in the middle of the bottom wall of the filter cylinder 1, and a collection box 41 matching the slag leakage port 4 is fixed on the lower side of the filter cylinder 1; solid impurities intercepted by the conical filter cylinder 13 can fall into the collection box 41 through the slag leakage port 4 for collection.

[0038] A rotating rod 42 is rotatably mounted at the end of the slag outlet 4. A sealing plate 43 matching the slag outlet 4 is fixed to the rotating rod 42. A sliding groove 44 is opened at the bottom of the filter cylinder 1. A sliding block 45 is slidably mounted in the sliding groove 44. A spring 451 is provided between the right side of the sliding block 45 and the sliding groove 44. A sliding rod 452 is fixed to the right side of the sliding block 451. A circular groove 453 is opened on the rotating rod 42. The sliding rod 452 slides into the circular groove 453. A spiral groove 454 is opened on the side wall of the circular groove 453. A guide rod 455 matching the spiral groove 454 is fixed to the sliding rod 452. A push rod 46 is fixed on the upper side of the sliding block 45. A push block 47 is connected to the lower side of the ring plate 26. An inclined surface is machined on the right side of the push block 47. The push rod 46 abuts against the inclined surface.

[0039] A collection box 411 is slidably provided at the bottom of the collection box 41;

[0040] When several pneumatic plates 23 are attached to the rotating shaft 2, the sealing plate 43 blocks the slag outlet 4. Solid impurities in the natural gas are intercepted by the conical filter cylinder 13. Some solid impurities fall onto the upper side of the sealing plate 43, while others adhere to the conical filter cylinder 13. When cleaning the conical filter cylinder 13, the electric push rod 25 is activated to drive the ring plate 26 forward, which in turn pushes the pneumatic plates 23 to rotate vertically via the push-pull rod 24. At the same time, when the ring plate 26 moves forward, it can drive the push block 47 forward. Since the push rod 46 abuts against the inclined surface of the push block 47, the push block 47 can push the push rod 46 to the right, causing the sliding block 45 in the sliding groove 44 to move to the right. The sliding rod 452 connected to the sliding block 45 moves to the right in the circular groove 453. The guide rod 455 fixed on the sliding rod 452 slides in the spiral groove 454, which will drive the rotating rod 42 to rotate, thereby causing the sealing plate 43 to rotate downward and open the slag outlet 4. Figure 2 As shown, when cleaning the conical filter cartridge 13, impurities will fall into the collection box 411 inside the collection box 41;

[0041] After cleaning, the electric push rod 25 drives the ring plate 26 to move backward, and several pneumatic plates 23 will be in contact with the rotating shaft. The sliding block 45 is reset under the elastic force of the spring 451, so that the push rod 46 is always in contact with the inclined surface of the push block 47. At the same time, it drives the sliding rod 452 to reset to the left, that is, the guide rod 455 moves to the left in the spiral groove 454, which can drive the sealing plate 43 to reset and seal the slag outlet 4.

[0042] When the collection box 411 contains a lot of impurities, the slag outlet 4 is blocked by the sealing plate 43, so the staff only needs to take the collection box 411 out of the collection box 42 without stopping the natural gas supply.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A natural gas separation device, characterized in that: The filter includes a filter cylinder, with air supply pipes connected to both the left and right ends of the filter cylinder. A ring is rotatably assembled inside the filter cylinder, and a conical filter cylinder is connected to the left end of the ring. The ring is equipped with a rotating mechanism, and a scraper that fits against the conical filter cylinder is fixed to the bottom wall of the filter cylinder. The rotating mechanism includes a rotating shaft rotatably mounted inside the left side of the filter cylinder. A transmission assembly is provided between the rotating shaft and the circular ring. A circular seat is fixed in the middle of the rotating shaft. The circular seat has several evenly distributed slots. A fan plate is rotatably mounted in each of the slots. A push-pull rod is hinged to the rear side of each of the fan plates. An electric push rod is installed on the rear side of the filter cylinder. The output shaft of the electric push rod is connected to a ring plate sleeved on the outside of the rotating shaft. A rotating ring is rotatably mounted on the front side of the ring plate. The rear ends of each of the push-pull rods are hinged to the rotating ring.

2. The natural gas separation device according to claim 1, characterized in that: The transmission assembly includes a first transmission wheel connected to the front end of the rotating shaft through the filter cylinder, a first bevel tooth fixed on the outer side of the ring, an annular through groove matching the first bevel tooth on the filter cylinder, a second bevel tooth meshing with the first bevel tooth rotatably mounted on the front side of the filter cylinder, a second transmission wheel fixed on the front side of the second bevel tooth, and a transmission belt between the first transmission wheel and the second transmission wheel.

3. A natural gas separation device according to claim 2, characterized in that: The filter cartridge is fixed with a U-shaped connecting block located outside the annular groove.

4. A natural gas separation device according to claim 1, characterized in that: The scraper is equipped with a brush on its inner side.

5. A natural gas separation device according to claim 1, characterized in that: A slag leakage port is provided in the middle of the bottom wall of the filter cylinder, and a collection box matching the slag leakage port is fixed on the lower side of the filter cylinder.

6. A natural gas separation device according to claim 5, characterized in that: A rotating rod is rotatably mounted at the end of the slag outlet. A sealing plate matching the slag outlet is fixed to the rotating rod. A sliding groove is provided at the bottom of the filter cylinder. A sliding block is slidably mounted in the sliding groove. A spring is provided between the right side of the sliding block and the sliding groove. A sliding rod is fixed to the right side of the sliding block. A circular groove is provided on the rotating rod. The sliding rod slides into the circular groove. A spiral groove is provided on the side wall of the circular groove. A guide rod matching the spiral groove is fixed to the sliding rod. A push rod is fixed to the upper side of the sliding block. A pushing block is connected to the lower side of the ring plate. An inclined surface is machined on the right side of the pushing block. The push rod abuts against the inclined surface.

7. A natural gas separation device according to claim 6, characterized in that: The bottom of the collection box is equipped with a collection compartment that slides down.

8. A method of using a natural gas separation device according to any one of claims 1-7, characterized in that: Includes the following steps: S1: When the equipment is in operation, natural gas is transported into the filter cartridge through the gas transmission pipe on the left side. Solid impurities in the natural gas are intercepted by the conical filter cartridge, achieving solid-gas separation. S2: When cleaning the conical filter cartridge, start the electric push rod to drive the ring plate forward. Push the pneumatic plate to flip to vertical position through the push-pull rod. At this time, the natural gas flow can drive several flipping plates to flip. Through the transmission component, the conical filter cartridge is rotated. The scraper can clean the conical filter plate. The ring plate moves forward and drives the sealing plate to flip downward. Therefore, the cleaned impurities will fall into the collection box for collection. S3: When cleaning impurities inside the collection box, the electric push rod is activated to drive the ring plate to move backward and cause the sealing plate to flip upward, sealing the slag leakage port. Therefore, it is not necessary to stop the delivery of natural gas when cleaning impurities in the collection box.

Images