CN116850705A - Gravity separator sled dress device convenient to maintenance inspection - Google Patents

Abstract

The invention discloses a gravity separator skid-mounted device convenient for maintenance and inspection, which comprises a separator body, wherein an inlet and outlet pipeline is connected between a natural gas inlet and a natural gas outlet of the separator body, and a first maintenance loop is arranged on the inlet and outlet pipeline; the safety valve port of the separator body is connected with a safety pipeline, and the safety pipeline is provided with a second overhaul loop; a liquid discharge port of the separator body is connected with a liquid discharge pipeline, and a maintenance loop III is arranged on the liquid discharge pipeline; a drain outlet of the separator body is connected with a drain pipeline; the separator body, the inlet and outlet pipelines, the safety pipeline, the liquid discharge pipeline and the sewage pipeline are all arranged on the hoisting structure. The separator body is connected with a plurality of bypasses, so that the safety protection return stroke of an inlet pipeline and an outlet pipeline can be realized, the long-time and complex process shutdown process can be avoided, the maintenance of the separator body and a pipeline connected with the separator body is realized, and the maintenance is convenient and quick.

Description

Gravity separator skid-mounted device for easy maintenance and inspection

Technical field

The invention relates to the technical field of skid-mounting of natural gas sand removal devices, and in particular, to a gravity separator skid-mounted device that is convenient for maintenance and inspection.

Background technique

Gravity separator is one of the most commonly used, basic and important oil, gas and water separation process equipment in oil fields. It has the advantages of simple structure, convenient operation, stable operation and low maintenance cost. The gravity separator pry uses the difference in gravity caused by the different densities of liquid, gas and solid to achieve separation. The main principle is that due to the different densities of gas and liquid, when the liquid flows with the gas, the liquid will be affected by gravity, producing a downward speed, while the gas still flows in the original direction, that is to say, the liquid and gas have a tendency to separate in the gravity field, and the downward liquid adheres to the wall and gathers together to be discharged through the discharge pipe. The separator can remove suspended solid and liquid impurities in the medium, reduce the transportation load of pipelines and equipment, reduce the occurrence of corrosion and blockage, and ensure the safe and reliable operation of pipelines and equipment. Of course, there are also some separators specifically designed to separate materials that are difficult to separate.

In many situations in the petroleum, chemical and other industries, gas-liquid separators are needed to separate gas-liquid mixed media to complete product purification or meet the technical requirements of the process. The oil well gas and liquid flow entering the separator is a high-speed, disturbed gas-liquid mixed fluid. Due to the high flow rate when leaving the pipeline, the inertial effect entering the separator must be effectively overcome, so that the gas-liquid flow will produce natural gravity separation at a normal flow rate under the container size conditions, and the gas-liquid flow should be dispersed as much as possible to facilitate separation. The inlet component uses collision and other mechanisms to decelerate the incoming flow and effectively disperse the gas and liquid flow. Compared with vertical separators, horizontal separators have the advantages of larger processing capacity, easy installation, and low cost per unit processing capacity; however, they also have disadvantages such as large floor space, difficult liquid control, and difficulty in sewage discharge. Maintenance and inspection require closing the separator outlet valve, closing the inlet valve, opening the vent valve, closing the vent at 0.15~0.2, opening the trap bypass valve, opening the sand discharge valve, removing sand and liquid accumulation, the pressure becomes 0, close the trap bypass , close the sand discharge valve, and stop the equipment for maintenance. The maintenance process is complicated and requires shutdown, which is time-consuming and complicated.

Existing technologies such as the Chinese invention patent with publication number CN 114016994 A and an application date of 2021.12.08 disclose an automatic continuous sand discharge system and process. The system includes a cyclone separator, a gravity separator, a water tank, and a magnetic flap liquid. Level gauge, liquid level alarm controller, first electric pump and PLC controller: the cyclone separator is connected to the air inlet pipeline, and the top and bottom of the cyclone separator are connected to the first air outlet pipeline and the top of the gravity separator respectively: Gravity The separator is connected to the second gas outlet pipeline; the bottom of the gravity separator is connected to the sewage pipeline, and a regulating valve is provided on the sewage pipeline: a magnetic flip plate liquid level gauge is installed on the gravity separator, and the upper end of the magnetic flip plate liquid level gauge A liquid level alarm controller is connected between the level port and the lower liquid level port; the first electric pump pumps water from the water tank to the gravity separator; the PLC controller is connected to the liquid level alarm controller, the first electric pump and the regulating valve electronics respectively. connect. This invention can solve the current problems of back-end equipment being easily blocked and eroded due to sand production in the domestic natural gas fracturing process, and automatic sand discharge cannot be realized. However, it still has a large floor area, difficult liquid control, complicated maintenance process, and requires maintenance. Downtime is time-consuming and the maintenance process is complicated.

Contents of the invention

In view of the deficiencies in the above background technology, the present invention proposes a gravity separator skid-mounted device that is convenient for maintenance and inspection, which solves the problem in the prior art that the gravity separator needs to be shut down during maintenance and takes a long time.

The technical solution of the present invention is realized as follows: a gravity separator skid-mounted device that is convenient for maintenance and inspection, including a separator body. There are inlet and outlet pipelines connected between the natural gas inlet and the natural gas outlet of the separator body. The inlet and outlet pipelines are equipped with There is a maintenance circuit one; a safety pipeline is connected to the safety valve port of the separator body, and a maintenance circuit two is provided on the safety pipeline; a drainage pipeline is connected to the drain port of the separator body, and a maintenance circuit three is provided on the drainage pipeline; separation The sewage outlet of the separator body is connected with a sewage pipeline; the separator body, inlet and outlet pipelines, safety pipelines, liquid drainage pipelines and sewage pipelines are all installed on the hoisting structure.

Further, the separator body includes a cylinder and a TP plate group. The TP plate group is connected with a baffle. The TP plate group and the baffle are both installed in the cylinder. Both ends of the cylinder are equipped with oval heads. The cylinder is also equipped with a baffle corresponding to the natural gas inlet. The natural gas outlet of the cylinder is equipped with a mist catcher. The cylinder is provided with a manhole for maintenance and a saddle for support. The lower part of the cylinder is connected with The liquid outlet cylinder has a liquid level gauge between the cylinder body and the liquid outlet cylinder, and the liquid discharge port and the sewage discharge port are both arranged on the liquid outlet cylinder.

Further, the import and export pipelines include a natural gas inlet pipeline and a natural gas outlet pipeline. The natural gas outlet pipeline is connected to the natural gas outlet. A ball valve is provided on the natural gas outlet pipeline. The natural gas inlet pipeline is connected to the natural gas inlet. The natural gas import pipeline is connected to the natural gas inlet. There is a ball valve three, and the maintenance pipeline one is connected between the natural gas outlet pipeline and the natural gas inlet pipeline, and the maintenance pipeline one is located at the outlet end of the ball valve one and the ball valve three.

Further, the maintenance circuit one includes a ball valve two, which is connected to the natural gas inlet pipeline and the natural gas outlet pipeline respectively through pipelines. When the ball valves one and three are closed and the ball valve two is opened, the natural gas on the natural gas inlet pipeline can Direct access to the natural gas export pipeline.

Further, the safety pipeline includes pipeline one and pipeline two. Pipe one is installed horizontally on the hoisting structure. Pipe two and maintenance circuit two are connected in parallel between pipeline one and the separator body. Pipe one is installed on it. There is a ball valve five, and a ball valve four and a safety valve are installed on the pipeline two.

Further, the second maintenance circuit includes a throttling cut-off and vent valve, and the intercepting cut-off and vent valve is connected to the safety valve port and pipeline one through pipelines.

Further, the drainage pipeline includes a gas outlet pipeline, pipeline three and pipeline four. Pipe three is connected in parallel with maintenance circuit three. Pipe three is provided with ball valve six, produced water drainage valve and ball valve ten in sequence. One end of the gas pipeline and one end of pipeline 4 are both connected to the produced water drainage valve, and the other end of the gas outlet pipeline is connected to the inlet and outlet pipeline. There is a ball valve eight on the gas outlet pipeline, and a ball valve seven on pipeline four.

Further, a ball valve nine and a stop valve are installed on the maintenance circuit three.

Furthermore, a flat gate valve, a ball valve 11 and a figure-eight blind plate are arranged in sequence on the sewage pipeline.

Further, the hoisting structure includes a bottom mounting frame and a hoisting frame that cooperates with the separator body, and the hoisting frame is installed on the bottom mounting frame.

The beneficial effects of the present invention are: 1. The separator body of the present invention is connected with an inlet and outlet pipeline, and a maintenance loop 1 is provided on the inlet and outlet pipelines. The maintenance loop 1 serves as a bypass for the inlet and outlet pipelines, which can realize the safety protection return of the inlet and outlet pipelines. , can avoid the long and complicated process shutdown process, realize the maintenance of the separator body and the pipeline connected to the separator body, and the maintenance is convenient and fast; the maintenance loop 2 is set on the safety pipeline to facilitate the maintenance of the safety loop; the drainage pipeline is set Inspection circuit three facilitates the inspection and repair of the drainage pipeline.

2. The separator body is equipped with a TP plate set and baffles. The TP plate set has low resistance, uniform gas and liquid distribution, high efficiency and large flux. When the oil, gas and water mixture passes by, the dispersed phase coalesces from small droplets on the surface of the filler into large liquid clusters. When it reaches a certain size, it floats along the surface of the filler to the upper surface of the liquid, thereby achieving the purpose of separation. The baffle is an arc-shaped deflection baffle that can suddenly change the direction and speed of the medium. It is used to withstand the impact of the fluid and achieve high-speed swirling to prevent the medium from directly colliding with the inner wall of the gravity separator skid.

3. The produced water drain valve in the drain line can make the liquid in the separator body sink to the lower part of the container, and the liquid can be separated again through the produced water drain valve. The separation effect is good, and the re-separated gas can be connected to the inlet and outlet pipelines through the gas outlet pipeline, and passed into the inlet and outlet pipelines, and the gas collection effect is good.

Description of the drawings

In order to explain the embodiments of the present invention more clearly, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary people in the art, For technical personnel, other drawings can also be obtained based on these drawings without exerting creative work.

Figure 1 is a schematic diagram of the skid-mounted structure of the present invention;

Figure 2 is a schematic structural diagram of the separator body;

Figure 3 is a side view of the separator body;

Figure 4 is a schematic diagram of the connection of the inlet and outlet pipelines;

Figure 5 is a side view of the inlet and outlet pipeline;

Figure 6 is a schematic diagram of the connection of the safety pipeline;

Figure 7 is a top view of the safety pipeline;

Figure 8 is a schematic diagram of the connection of the drainage pipeline;

Figure 9 is a schematic diagram of the connection of the sewage pipeline;

Figure 10 is a top view of the hoisting structure.

In the picture: 1. Oval head, 2. Baffle, 3. TP plate group, 4. Barrel, 5. Forged pipe, 6. Fog catcher, 7. Saddle, 8. Pressure nameplate, 9. Baffle, 10. Natural gas inlet pipeline, 10-1. Ball valve three, 11. Natural gas outlet pipeline, 11-1, ball valve one, 12. Maintenance circuit one, 12-1, ball valve two, 13. Pipe one, 13-1. Ball valve five, 14. Pipeline two, 14-1. Ball valve four, 14-2, safety valve, 15. Maintenance circuit two, 15-1. Throttle cut-off vent valve, 16. Pipeline three, 16 -1. Ball valve six, 16-2. Produced water drainage valve, 16-3. Ball valve ten, 17. Pipeline four, 17-1. Ball valve seven, 18. Outlet pipeline, 18-1. Ball valve eight, 19 , Maintenance circuit three, 19-1, ball valve nine, 19-2, globe valve, 20, sewage pipeline, 20-1, flat gate valve, 20-2, ball valve eleven, 20-3, eight-shaped blind plate, 21, bottom Mounting rack, 22. Suspended rack.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without exerting creative efforts fall within the scope of protection of the present invention.

As shown in Figures 1 to 3, Embodiment 1, a gravity separator skid-mounted device that is convenient for maintenance and inspection, includes a separator body, and an inlet and outlet pipeline is connected between the natural gas inlet and the natural gas outlet of the separator body. There is a maintenance loop 12 on the pipeline; the maintenance loop 12 serves as a bypass for the inlet and outlet pipelines to facilitate the maintenance of the inlet and outlet pipelines and the separator body. The safety valve 14-2 of the separator body is connected to a safety pipeline, and the safety pipeline is provided with an inspection circuit 2 15; the inspection circuit 2 15 serves as a bypass of the safety pipeline and directs the maintenance of the safety pipeline. A drain line is connected to the drain port of the separator body, and an inspection loop 319 is provided on the drain line; the inspection loop 319 serves as a bypass of the drain line to facilitate the inspection of the drain line. The sewage outlet of the separator body is connected with a sewage pipeline 20; the separator body, inlet and outlet pipelines, safety pipelines, liquid drainage lines and sewage pipeline 20 are all installed on the hoisting structure. The separator body, inlet and outlet pipelines, safety pipelines, liquid drainage pipelines and sewage drainage pipelines 20 are connected and combined to form a gravity separator skid. The gravity separator skid is installed on the hoisting structure, which facilitates the transfer and installation of the device and saves installation. time and improve installation efficiency. The separation principle of the separator body is that the density of gas and liquid are different. When the liquid flows together with the gas, the liquid will be affected by gravity, generating a downward speed, while the gas still flows in the original direction, that is to say, the liquid Unlike gas, which has a tendency to separate in the gravity field, the downward liquid adheres to the wall and is collected together and discharged through the discharge pipe.

As shown in Figures 2 and 3, Embodiment 2 is a gravity separator skid-mounted device that is convenient for maintenance and inspection. The separator body includes a cylinder 4 and a TP plate group 3. The TP plate group 3 has a small gas-liquid distribution resistance. Uniform, high efficiency and large flux. According to the process calculation requirements, different plate spacings are selected so that when the oil, gas, and water mixture passes by, the dispersed phase coalesces from small droplets to large liquid groups on the surface of the filler. When it reaches a certain size, it floats along the surface of the filler to the surface of the liquid. upper surface to achieve the purpose of separation. The TP plate group 3 is connected with a baffle 9. The TP plate group 3 and the baffle 9 are both installed in the cylinder 4. Both ends of the cylinder 4 are provided with oval heads 1, and the cylinder 4 is also provided with The baffle 2 corresponding to the natural gas inlet is an arc-shaped deflection baffle 9, which is a structure that suddenly changes the direction and speed of the medium. The flow guide device is mainly used to withstand the impact of the fluid and achieve high-speed swirling flow. Prevent the medium from directly colliding with the inner wall of the gravity separator. The natural gas outlet of the cylinder 4 is provided with a mist catcher 6. The cylinder 4 is provided with a manhole for maintenance and a saddle 7 for support. The lower part of the cylinder 4 is connected to a liquid outlet cylinder, and the cylinder 4 is connected to the outlet. There is a liquid level gauge between the liquid cylinders, and the liquid discharge port and the sewage discharge port are both arranged on the liquid outlet cylinder. The main principle is that due to the different densities of gas and liquid, when the liquid flows with the gas, the liquid will be affected by gravity, generating a downward speed, while the gas still flows in the original direction, that is to say, the liquid and the gas There is a tendency to separate in the gravity field, and the downward liquid adheres to the wall and is collected together and discharged through the discharge pipe, thereby achieving the purpose of the gas-liquid medium separator.

Other structures are the same as in Embodiment 1.

As shown in Figures 4 and 5, Embodiment 3 is a gravity separator skid-mounted device that facilitates maintenance and inspection. The inlet and outlet pipelines include a natural gas inlet pipeline 10 and a natural gas outlet pipeline 11. The natural gas outlet pipeline 11 and The natural gas outlet is connected. The natural gas outlet pipeline 11 is provided with a ball valve 11-1. The natural gas inlet pipeline 10 is connected to the natural gas inlet. The natural gas inlet pipeline 10 is provided with a ball valve three 10-1. The maintenance pipeline 13 is connected to the natural gas outlet. Between the outlet pipeline 11 and the natural gas inlet pipeline 10, and the maintenance pipeline 13 is located at the outlet end of the ball valve one 11-1 and the ball valve three 10-1. The maintenance circuit one 12 includes a ball valve two 12-1. The ball valve two 12-1 is connected to the natural gas inlet pipeline 10 and the natural gas outlet pipeline 11 respectively through pipelines. When the ball valve one 11-1 and the ball valve three 10-1 are closed, The ball valve 12-1 opens, and the natural gas on the natural gas inlet pipeline 10 can directly enter the natural gas outlet pipeline 11.

Operation instructions: When the equipment is operating normally, ball valve two 12-1 is closed, and ball valve one 11-1 enters the ball valve three 10-1. In an emergency, ball valve one 11-1 and ball valve three 10-1 can be closed, and ball valve two can be opened. 12-1 Make the medium bypass directly.

Other structures are the same as in Embodiment 2.

As shown in Figure 6, Embodiment 4 is a gravity separator skid-mounted device that facilitates maintenance and inspection. The safety pipeline includes pipeline one 13 and pipeline two 14. Pipe one 13 is installed horizontally on the hoisting structure. Road two 14 and maintenance circuit two 15 are connected in parallel between pipeline one 13 and the separator body. Ball valve five 13-1 is installed on pipeline one 13, and ball valve four 14-1 and safety valve 14 are installed on pipeline two 14. -2. Safety valve 14-2 should generally be calibrated at least once a year. If it is difficult to disassemble for calibration, on-site calibration and online calibration should be used. The maintenance circuit two 15 includes a throttling cut-off and vent valve 15-1, and the intercepting cut-off and vent valve is connected to the safety valve 14-2 port and the pipeline one 13 through pipelines.

Operation instructions: When the equipment is operating normally, the throttle, cut-off and vent valve 15-1 is closed, ball valve four 14-1 and ball valve five 13-1 are open. When inspecting the safety valve 14-2, ball valve four 14-1 can be closed and the throttle valve 14-1 can be opened at the same time. Flow cut-off vent valve 15-1, ball valve 5 13-1. Note: Ball valve 513-1 is normally open.

Other structures are the same as Embodiment 3.

As shown in Figure 7, Embodiment 5 is a gravity separator skid-mounted device that facilitates maintenance and inspection. The drainage pipeline includes an air outlet pipeline 18, a third pipeline 16 and a fourth pipeline 17. The third pipeline 16 is connected with the maintenance Loop three 19 is connected in parallel, and pipeline three 16 is provided with a ball valve, a produced water drainage valve 16-2 and a ball valve ten 16-3 in sequence. One end of the gas outlet pipeline 18 and one end of the pipeline four 17 are connected to the produced water drainage. The valve 16-2 is connected, and the other end of the outlet pipeline 18 is connected to the inlet and outlet pipeline through a tee pipe. The outlet pipeline 18 is provided with a ball valve eight 18-1, and the pipeline four 17 is provided with a ball valve seven 17-1. When the formation fluid enters the gravity separator skid, it first encounters the inlet diversion device, causing the momentum and direction of the fluid to suddenly change. The gas escapes from the liquid and rises. The liquid sinks to the lower part of the container and passes through the produced water drainage valve 16- 2 Separate the liquid again. The maintenance circuit three 19 is equipped with a ball valve nine 19-1 and a stop valve 19-2.

Operation instructions: When the equipment is operating normally, ball valve six 16-1, ball valve seven 17-1, ball valve eight 18-1, and ball valve ten 16-3 are in the open state, ball valve nine 19-1, and stop valve 19-2 are in the closed state. In an emergency or during maintenance, ball valve six 16-1 and ball valve ten 16-3 can be closed and ball valve nine 19-1 and stop valve 19-2 can be opened at the same time.

Other structures are the same as in Embodiment 4.

As shown in Figure 8, Embodiment 6 is a gravity separator skid-mounted device that facilitates maintenance and inspection. The sewage pipeline 20 is provided with a flat gate valve 20-1, a ball valve 11 20-2 and a figure-eight blind plate 20- in sequence. 3. The ball valves used in this device are all forged steel ball valves.

Operation instructions: When the equipment is operating normally, the flat gate valve 20-1 and the ball valve 11 20-2 are in a closed state, and the closed end of the eight-shaped blind plate 20-3 is placed between the ball valve 11 20-2 and the end flange. When the equipment needs to be discharged, place the flow end of the eight-shaped blind plate 20-3 between the ball valve 11 20-2 and the tail flange, open the flat gate valve 20-1 and slowly open the ball valve 11 20-2.

Other structures are the same as in Embodiment 5.

As shown in Figures 2 and 3, Embodiment 7 is a gravity separator skid-mounted device that facilitates maintenance and inspection. The hoisting structure includes a bottom mounting frame 21 and a hoisting frame 22 that cooperates with the separator body. The hoisting frame 22 is installed On the bottom mounting bracket 21. When used specifically, the system installs the separator skid inlet connected to the downstream data head; the separator skid gas outlet is connected to the coalescing separator via a pipeline; the separator skid drain outlet is connected to the entrance of the sewage manifold; the separator skid release outlet is connected with a pipeline Lead to the discharge port.

Operation process of gravity separator: Gently open the ball valve at the gas-liquid inlet and the valve on the gas pipeline; closely observe the rising liquid level through the liquid level gauge; after the liquid level rises, open the produced water drainage valve 16-2 process Valve; adjust the liquid level position by adjusting the valve on the produced water drainage valve 16-2.

Other structures are the same as in Embodiment 6.

As shown in Figures 2 and 3, Embodiment 8, a gravity separator skid-mounted device that is convenient for maintenance and inspection, includes a separator body, and an inlet and outlet pipeline is connected between the natural gas inlet and the natural gas outlet of the separator body. There is a maintenance loop 12 on the pipeline; the maintenance loop 12 serves as a bypass for the inlet and outlet pipelines to facilitate the maintenance of the inlet and outlet pipelines and the separator body. The safety valve 14-2 of the separator body is connected to a safety pipeline, and the safety pipeline is provided with a maintenance loop 2 15; the maintenance loop 2 15 serves as a bypass of the safety pipeline and directs the maintenance of the safety pipeline. A drain line is connected to the drain port of the separator body, and an inspection loop 319 is provided on the drain line; the inspection loop 319 serves as a bypass of the drain line to facilitate the inspection of the drain line. The sewage outlet of the separator body is connected with a sewage pipeline 20; the separator body, inlet and outlet pipelines, safety pipelines, liquid drainage lines and sewage pipeline 20 are all installed on the hoisting structure. The separator body, inlet and outlet pipelines, safety pipelines, liquid drainage pipelines and sewage drainage pipelines 20 are connected and combined to form a gravity separator skid. The gravity separator skid is installed on the hoisting structure, which facilitates the transfer and installation of the device and saves installation. time and improve installation efficiency. The separation principle of the separator body is that the density of gas and liquid are different. When the liquid flows together with the gas, the liquid will be affected by gravity, generating a downward speed, while the gas still flows in the original direction, that is to say, the liquid Unlike gas, which has a tendency to separate in the gravity field, the downward liquid adheres to the wall and is collected together and discharged through the discharge pipe.

As shown in Figure 4, in this embodiment, the inlet and outlet pipelines include a natural gas inlet pipeline 10 and a natural gas outlet pipeline 11. The natural gas outlet pipeline 11 is connected to the natural gas outlet. The natural gas outlet pipeline 11 is provided with forged steel Ball valve one 11-1, the natural gas inlet pipeline 10 is connected to the natural gas inlet. The natural gas inlet pipeline 10 is provided with a forged steel ball valve three 10-1, and the maintenance pipeline 13 is connected between the natural gas outlet pipeline 11 and the natural gas inlet pipeline 10. between, and the maintenance pipeline one 13 is located at the outlet end of the forged steel ball valve one 11-1 and the forged steel ball valve three 10-1. The maintenance circuit one 12 includes a forged steel ball valve two 12-1, which is connected to the natural gas inlet pipeline 10 and the natural gas outlet pipeline 11 respectively through pipelines. When the forged steel ball valve one 11-1 and the forged steel ball valve one 11-1 The steel ball valve three 10-1 is closed, the forged steel ball valve two 12-1 is opened, and the natural gas on the natural gas inlet pipeline 10 can directly enter the natural gas outlet pipeline 11.

Operation instructions: When the equipment is operating normally, the forged steel ball valve two 12-1 is in a closed state, and the forged steel ball valve one 11-1 enters the forged steel ball valve three 10-1 and exits. In an emergency, the forged steel ball valve one 11-1 and the forged steel ball valve one 11-1 can be closed. Steel ball valve three 10-1, open forged steel ball valve two 12-1 to bypass the medium directly.

As shown in Figures 2 and 3, Embodiment 9, a gravity separator skid-mounted device that facilitates maintenance and inspection, includes a separator body, and an inlet and outlet pipeline is connected between the natural gas inlet and the natural gas outlet of the separator body. There is a maintenance loop 12 on the pipeline; the maintenance loop 12 serves as a bypass for the inlet and outlet pipelines to facilitate the maintenance of the inlet and outlet pipelines and the separator body. The safety valve 14-2 of the separator body is connected to a safety pipeline, and the safety pipeline is provided with an inspection circuit 2 15; the inspection circuit 2 15 serves as a bypass of the safety pipeline and directs the maintenance of the safety pipeline. A drain line is connected to the drain port of the separator body, and an inspection loop 319 is provided on the drain line; the inspection loop 319 serves as a bypass of the drain line to facilitate the inspection of the drain line. The sewage outlet of the separator body is connected with a sewage pipeline 20; the separator body, inlet and outlet pipelines, safety pipelines, liquid drainage lines and sewage pipeline 20 are all installed on the hoisting structure. The separator body, inlet and outlet pipelines, safety pipelines, liquid drainage pipelines and sewage drainage pipelines 20 are connected and combined to form a gravity separator skid. The gravity separator skid is installed on the hoisting structure, which facilitates the transfer and installation of the device and saves installation. time and improve installation efficiency. The separation principle of the separator body is that the density of gas and liquid are different. When the liquid flows together with the gas, the liquid will be affected by gravity, generating a downward speed, while the gas still flows in the original direction, that is to say, the liquid Unlike gas, which has a tendency to separate in the gravity field, the downward liquid adheres to the wall and is collected together and discharged through the discharge pipe.

In this embodiment, the safety pipeline includes pipeline one 13 and pipeline two 14. Pipe one 13 is installed horizontally on the hoisting structure. Pipe two 14 and maintenance circuit two 15 are connected in parallel between pipeline one 13 and the separator. Between the bodies, a forged steel ball valve five 13-1 is installed on the pipeline one 13, and a forged steel ball valve four 14-1 and a safety valve 14-2 are installed on the pipeline two 14. Safety valve 14-2 should generally be calibrated at least once a year. If it is difficult to disassemble for calibration, on-site calibration and online calibration should be used. The maintenance circuit two 15 includes a throttling cut-off and vent valve 15-1, and the intercepting cut-off and vent valve is connected to the safety valve 14-2 port and the pipeline one 13 through pipelines.

Operation instructions: When the equipment is operating normally, the throttling cut-off vent valve 15-1 is closed, the forged steel ball valve 14-1 and the forged steel ball valve 5 13-1 are open. When the safety valve 14-2 is inspected, the forged steel ball valve 4 can be closed. 14-1 Open the throttle cut-off vent valve 15-1 and the forged steel ball valve 5 13-1 at the same time. Note: Forged steel ball valve 513-1 is normally open.

Other structures are the same as Embodiment 3.

As shown in Figures 2 and 3, Embodiment 8, a gravity separator skid-mounted device that is convenient for maintenance and inspection, includes a separator body, and an inlet and outlet pipeline is connected between the natural gas inlet and the natural gas outlet of the separator body. There is a maintenance loop 12 on the pipeline; the maintenance loop 12 serves as a bypass for the inlet and outlet pipelines to facilitate the maintenance of the inlet and outlet pipelines and the separator body. The safety valve 14-2 of the separator body is connected to a safety pipeline, and the safety pipeline is provided with an inspection circuit 2 15; the inspection circuit 2 15 serves as a bypass of the safety pipeline and directs the maintenance of the safety pipeline. A drain line is connected to the drain port of the separator body, and an inspection loop 319 is provided on the drain line; the inspection loop 319 serves as a bypass of the drain line to facilitate the inspection of the drain line. The sewage outlet of the separator body is connected with a sewage pipeline 20; the separator body, inlet and outlet pipelines, safety pipelines, liquid drainage lines and sewage pipeline 20 are all installed on the hoisting structure. The separator body, inlet and outlet pipelines, safety pipelines, liquid drainage pipelines and sewage drainage pipelines 20 are connected and combined to form a gravity separator skid. The gravity separator skid is installed on the hoisting structure, which facilitates the transfer and installation of the device and saves installation. time and improve installation efficiency. The separation principle of the separator body is that the density of gas and liquid are different. When the liquid flows together with the gas, the liquid will be affected by gravity, generating a downward speed, while the gas still flows in the original direction, that is to say, the liquid Unlike gas, which has a tendency to separate in the gravity field, the downward liquid adheres to the wall and is collected together and discharged through the discharge pipe.

In this embodiment, the drainage pipeline includes an air outlet pipeline 18, a pipeline three 16 and a pipeline four 17. The pipeline three 16 is connected in parallel with the maintenance circuit three 19. The pipeline three 16 is provided with forged steel ball valves in turn. , the produced water drainage valve 16-2 and the forged steel ball valve 16-3, one end of the gas outlet pipeline 18 and one end of the pipeline 17 are connected with the produced water drainage valve 16-2, and the other end of the gas outlet pipeline 18 Connected to the inlet and outlet pipelines, the outlet pipeline 18 is provided with a forged steel ball valve eight 18-1, and the pipeline four 17 is provided with a forged steel ball valve seven 17-1. When the formation fluid enters the gravity separator skid, it first encounters the inlet diversion device, causing the momentum and direction of the fluid to suddenly change. The gas escapes from the liquid and rises. The liquid sinks to the lower part of the container and passes through the produced water drainage valve 16- 2 Separate the liquid again. The maintenance circuit 319 is equipped with a forged steel ball valve 919-1 and a stop valve 19-2.

Operation instructions: When the equipment is operating normally, forged steel ball valve six 16-1, forged steel ball valve seven 17-1, forged steel ball valve eight 18-1, forged steel ball valve ten 16-3 are open, and forged steel ball valve nine 19-1 , the stop valve 19-2 is in a closed state. In an emergency or during maintenance, the forged steel ball valve six 16-1 and the forged steel ball valve ten 16-3 can be closed and the forged steel ball valve nine 19-1 and the stop valve 19-2 can be opened at the same time. .

As shown in Figures 2 and 3, Embodiment 8, a gravity separator skid-mounted device that is convenient for maintenance and inspection, includes a separator body, and an inlet and outlet pipeline is connected between the natural gas inlet and the natural gas outlet of the separator body. There is a maintenance loop 12 on the pipeline; the maintenance loop 12 serves as a bypass for the inlet and outlet pipelines to facilitate the maintenance of the inlet and outlet pipelines and the separator body. The safety valve 14-2 of the separator body is connected to a safety pipeline, and the safety pipeline is provided with an inspection circuit 2 15; the inspection circuit 2 15 serves as a bypass of the safety pipeline and directs the maintenance of the safety pipeline. A drain line is connected to the drain port of the separator body, and an inspection loop 319 is provided on the drain line; the inspection loop 319 serves as a bypass of the drain line to facilitate the inspection of the drain line. The sewage outlet of the separator body is connected with a sewage pipeline 20; the separator body, inlet and outlet pipelines, safety pipelines, liquid drainage lines and sewage pipeline 20 are all installed on the hoisting structure. The separator body, inlet and outlet pipelines, safety pipelines, liquid drainage pipelines and sewage drainage pipelines 20 are connected and combined to form a gravity separator skid. The gravity separator skid is installed on the hoisting structure, which facilitates the transfer and installation of the device and saves installation. time and improve installation efficiency. The separation principle of the separator body is that the density of gas and liquid are different. When the liquid flows together with the gas, the liquid will be affected by gravity, generating a downward speed, while the gas still flows in the original direction, that is to say, the liquid Unlike gas, which has a tendency to separate in the gravity field, the downward liquid adheres to the wall and is collected together and discharged through the discharge pipe.

In this embodiment, the sewage pipeline 20 is provided with a flat gate valve 20-1, a forged steel ball valve 11 20-2 and a figure-eight blind plate 20-3 in sequence.

Operation instructions: When the equipment is operating normally, the flat gate valve 20-1 and the forged steel ball valve 11 20-2 are in a closed state, and the closed end of the splayed blind plate 20-3 is placed between the forged steel ball valve 11 20-2 and the end flange. When the equipment needs to be discharged, place the flow end of the eight-shaped blind plate 20-3 between the forged steel ball valve 11 20-2 and the tail flange, open the flat gate valve 20-1 and slowly open the forged steel ball valve 11 20-2.

In this embodiment, the hoisting structure includes a bottom mounting bracket 21 and a hoisting bracket 22 that cooperates with the separator body. The hoisting bracket 22 is installed on the bottom mounting bracket 21 . When used specifically, the system installs the separator skid inlet connected to the downstream data head; the separator skid gas outlet is connected to the coalescing separator via a pipeline; the separator skid drain outlet is connected to the entrance of the sewage manifold; the separator skid release outlet is connected with a pipeline Lead to the discharge port.

During the operation process, gravity separator pry: Gently open the forged steel ball valve at the gas-liquid inlet and the valve on the gas pipeline; closely observe the rising liquid level through the liquid level gauge; after the liquid level rises, open the produced water drainage valve 16- 2. Process valve; adjust the liquid level position by adjusting the valve on the produced water drainage valve 16-2.

The principle of liquid level adjustment: the liquid level must be visible in the liquid level gauge; the liquid level must be the true liquid level, that is, ensure that the liquid level gauge is connected up and down with the container; usually the liquid level is set at 3/4 of the liquid level gauge.

The gravity separator includes a cylinder 4, a standard oval head 1, a support, a natural gas inlet and outlet, a manhole, a sewage outlet, a liquid level gauge port, and a liquid drain port. The internal components of the gravity separator body include an inlet baffle. 2. TP board set 3. Wire mesh demister. The main principle is that due to the different densities of gas and liquid, when the liquid flows with the gas, the liquid will be affected by gravity, generating a downward speed, while the gas still flows in the original direction, that is to say, the liquid and the gas There is a tendency to separate in the gravity field, and the downward liquid adheres to the wall and is collected together and discharged through the discharge pipe, thereby achieving the purpose of the gas-liquid medium separator.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (10)

1. A gravity separator skid-mounted device that is convenient for maintenance and inspection, characterized by: including a separator body, an inlet and outlet pipeline is connected between the natural gas inlet and the natural gas outlet of the separator body, and a maintenance loop is provided on the inlet and outlet pipeline. (12); The safety valve (14-2) of the separator body is connected to a safety pipeline, and a maintenance circuit 2 (15) is provided on the safety pipeline; the drain port of the separator body is connected to a drainage pipeline, and the drainage pipeline There is a maintenance circuit three (19); the sewage outlet of the separator body is connected with a sewage pipeline (20); the separator body, inlet and outlet pipelines, safety pipelines, liquid drainage pipelines and sewage pipelines (20) are all installed on the hoisting structure. 2. The gravity separator skid-mounted device convenient for maintenance and inspection according to claim 1, characterized in that: the separator body includes a cylinder (4) and a TP plate group (3), and the TP plate group (3) A baffle (9) is connected, and the TP plate group (3) and the baffle (9) are installed in the cylinder (4). Both ends of the cylinder (4) are equipped with oval heads (1). The body (4) is also provided with a baffle (2) corresponding to the natural gas inlet. The natural gas outlet of the cylinder (4) is provided with a mist catcher (6). The cylinder (4) is provided with a maintenance personnel. hole and a saddle (7) for support. The lower part of the cylinder (4) is connected with a liquid outlet cylinder. A liquid level gauge is provided between the cylinder (4) and the liquid outlet cylinder. A liquid drain port and a sewage drain port are both provided. On the discharge barrel. 3. The gravity separator skid-mounted device convenient for maintenance and inspection according to claim 1 or 2, characterized in that: the inlet and outlet pipelines include a natural gas inlet pipeline (10) and a natural gas outlet pipeline (11), and the natural gas outlet The pipeline (11) is connected to the natural gas outlet. The natural gas outlet pipeline (11) is provided with a ball valve (11-1). The natural gas inlet pipeline (10) is connected to the natural gas inlet. The natural gas inlet pipeline (10) is provided with a ball valve (11-1). Ball valve three (10-1), maintenance pipeline one (13) is connected between the natural gas outlet pipeline (11) and natural gas inlet pipeline (10), and maintenance pipeline one (13) is located at ball valve one (11-1 ) and the outlet end of ball valve three (10-1). 4. The gravity separator skid-mounted device convenient for maintenance and inspection according to claim 3, characterized in that: the first maintenance circuit (12) includes a second ball valve (12-1), and the second ball valve (12-1) passes through the pipe. The pipelines are connected to the natural gas inlet pipeline (10) and the natural gas outlet pipeline (11) respectively. When the first ball valve (11-1) and the third ball valve (10-1) are closed, the second ball valve (12-1) is opened, and the natural gas inlet The natural gas on the pipeline (10) can directly enter the natural gas outlet pipeline (11). 5. The gravity separator skid-mounted device convenient for maintenance and inspection according to claim 1 or 2 or 4, characterized in that: the safety pipeline includes pipeline one (13) and pipeline two (14), pipeline one (13) is installed horizontally on the hoisting structure. Pipeline two (14) and maintenance circuit two (15) are connected in parallel between pipe one (13) and the separator body. Ball valve five (5) is installed on pipe one (13). 13-1), and ball valve four (14-1) and safety valve (14-2) are installed on pipeline two (14). 6. The gravity separator skid-mounted device convenient for maintenance and inspection according to claim 5, characterized in that: the second maintenance circuit (15) includes a throttling cut-off vent valve (15-1), and the interception cut-off vent valve passes through the pipe. The pipelines are connected to the safety valve (14-2) port and pipeline one (13) respectively. 7. The gravity separator skid-mounted device convenient for maintenance and inspection according to claim 1 or 2 or 4 or 6, characterized in that: the drainage pipeline includes an air outlet pipeline (18), pipeline three (16) and Pipeline four (17) and pipeline three (16) are connected in parallel with maintenance circuit three (19). Pipeline three (16) is equipped with a ball valve, a produced water drainage valve (16-2) and a ball valve ten (16). -3), one end of the gas outlet pipeline (18) and one end of pipeline four (17) are connected to the produced water drainage valve (16-2), and the other end of the gas outlet pipeline (18) is connected to the inlet and outlet pipeline , the outlet pipeline (18) is provided with ball valve eight (18-1), and the pipeline four (17) is provided with ball valve seven (17-1). 8. The gravity separator skid-mounted device convenient for maintenance and inspection according to claim 7, characterized in that: the maintenance circuit three (19) is equipped with a ball valve nine (19-1) and a stop valve (19-2). . 9. The gravity separator skid-mounted device that is convenient for maintenance and inspection according to claim 1 or 2 or 4 or 6 or 8, characterized in that: the sewage pipeline (20) is sequentially provided with flat gate valves (20-1) , ball valve eleven (20-2) and figure eight blind plate (20-3). 10. The gravity separator skid-mounting device that facilitates maintenance and inspection according to claim 9, characterized in that: the hoisting structure includes a bottom mounting frame (21) and a hoisting frame (22) that cooperates with the separator body. The hoisting frame (22) is installed on the bottom mounting bracket (21).