Integrated multi-stage separation conveying and discharging device

Abstract

The utility model discloses an integrated multi-stage separation conveying and discharging device, and particularly relates to the field of natural gas separation, a second-stage cyclone pipe is internally provided with a rotatable second threaded sheet, and a third-stage cyclone pipe is internally provided with a rotatable third threaded sheet. A first threaded piece, a second threaded piece and a third threaded piece are driven to rotate through rotation of a rotating rod, so that natural gas (containing water, sand, impurities and the like) fluid enters a first-stage cyclone pipe through a process pipe section after pressure reduction, and water, sand and impurities in the fluid are separated from gas flow under the action of cyclone centrifugal force and inertia force and thrown out to enter a first-stage separation tank; and then the air flow sequentially enters a second-stage cyclone pipe, a second-stage separation tank, a third-stage cyclone pipe and a filtering separation tank to be subjected to second-time and third-time continuous cyclone separation. Through cooperation of the structures, the effect of separating solid, liquid and gas in fluid is achieved, the separation effect is high, and the purity of discharged natural gas is high.

Description

Technical Field

[0001] The invention relates to the field of natural gas separation technology, in particular to an integrated multi-stage separation and transmission device. Background Art

[0002] At present, the gathering and transportation process of most natural gas well stations is relatively complicated, with many equipment, mainly desander, water jacket furnace, separator, steam trap or electric valve and later defoaming equipment, etc., with high procurement cost, complex installation conditions, many accident points and difficult maintenance and management. In addition, the purification and separation of natural gas is not ideal, and the subsequent treatment process needs to be increased.

[0003] The "natural gas well station integrated multi-stage separation and transmission device" of the present invention integrates the functions of various equipment in the well station, simplifies the process flow, reduces procurement costs, is easy to install, easy to maintain and manage, and creates favorable conditions for realizing automatic and intelligent production.

[0004] The Chinese patent disclosed a natural gas gas-liquid separation device with publication number CN110835565A, and the application date is 2019.11.19. The patented technology allows the natural gas to be processed to pass through a first cyclone separator, a Laval nozzle and a separation tank in sequence, and then pass through a liquid baffle and a second cyclone separator in the separation tank in sequence, thereby achieving gas-liquid separation in the natural gas. The separated gas is discharged from the gas outlet, and the separated liquid is discharged from the liquid outlet. The natural gas to be processed first forms a swirl effect in the first cyclone separator, and the liquid is thrown onto the side wall due to the centrifugal force and flows along the side wall; then the speed is increased, the pressure is reduced and the temperature is lowered through the Laval nozzle, so that the gaseous lubricating oil in the natural gas is cooled into droplets; after the droplets enter the separation tank, they directly hit the liquid baffle inside the separation tank, and are separated once under the action of the liquid baffle; the liquid after the first separation flows downward, and the gas after the first separation flows upward and passes through the second cyclone separator, and the centrifugal force is used again to achieve the secondary separation of the gas and liquid phases, the separated gas continues to flow upward and is discharged from the gas outlet, and the separated liquid flows downward and is discharged from the liquid outlet, finally achieving the effect of gas-liquid separation of natural gas; however, although the above device separates the solid, liquid and gas in the fluid through two cyclones, it still cannot completely remove all the sand and liquid water in the fluid after two separations, so that the purity of the discharged natural gas is not high. Therefore, the inventor provides an integrated multi-stage separation and transmission device to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide an integrated multi-stage separation and transmission device, which can separate fluids multiple times so that the discharged natural gas has a higher purity.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An integrated multi-stage separation and discharge device comprises a primary separation tank, one side of which is fixedly connected to a primary cyclone tube, one side of which is provided with a flange, one side of which is fixedly connected to a secondary cyclone tube, one side of which is fixedly connected to a secondary separation tank, one side of which is fixedly connected to a tertiary cyclone tube, the right side of which is fixedly connected to a filtering separation tank, and the top of which is fixedly connected to a gas transmission pipeline; a rotatable first threaded piece is provided inside the primary cyclone tube, a rotatable second threaded piece is provided inside the secondary cyclone tube, and a rotatable third threaded piece is provided inside the tertiary cyclone tube.

[0008] As a further solution of the present invention: a cross fixing frame is fixedly connected to one side of the interior of the first-stage cyclone tube, the second-stage cyclone tube and the third-stage cyclone tube, and a fixing ring is fixedly connected to one side of the interior of the second-stage cyclone tube and the third-stage cyclone tube respectively on the corresponding inner side of the cross fixing frame, a filter is arranged inside the fixing ring, and a rotatable cleaning brush is attached to the surface of the filter.

[0009] As a further solution of the present invention: a connecting ring is fixedly connected to the surfaces of the two filter screens, a rotatable rotating rod is rotatably connected to one side of the connecting ring, the left side of the rotating rod on one side is fixedly connected to the right side end of the first threaded piece, the right side of the rotating rod on one side is fixedly connected to the left side end of the second threaded piece, the left side end of the rotating rod on the other side is fixedly connected to the right side end of the second threaded piece, the right side end of the rotating rod on the other side is fixedly connected to the left side end of the third threaded piece, one side of the rotating rod is fixedly connected to a flip block, and one side of the flip block is fixedly connected to a cleaning brush.

[0010] As a further solution of the present invention: a guide groove is opened inside the fixed ring, rolling grooves are opened on both sides of the guide groove, a pair of clamping blocks are fixed on the left and right sides and the front and rear ends of the flip block respectively, the opposite sides of the pair of clamping blocks are rotatably connected with rollers through movable shafts, and the rollers are rollingly connected to the rolling grooves.

[0011] As a further solution of the present invention: the bottom of the primary separation tank is fixedly connected to a first connecting pipe, the bottom of the secondary separation tank is fixedly connected to a second connecting pipe, the bottom of the filtration separation tank is fixedly connected to a third connecting pipe, and the bottoms of the first connecting pipe, the second connecting pipe and the third connecting pipe are fixedly connected to a collecting separation tank.

[0012] As a further solution of the present invention: a radar level meter is installed on the left side of the top of the collecting and separation tank, a sand discharge pipe is fixedly connected to the left side of the bottom of the collecting and separation tank, a bypass pipe is fixedly connected to the right side of the sand discharge pipe, a bypass valve is installed on the bypass pipe, a turning pipe is fixedly connected to the bottom of the bypass pipe, a steam trap liquid inlet valve is installed on the left side of the turning pipe, an automatic sand discharge steam trap is fixedly connected to the bottom of the turning pipe, and steam trap inlet and outlet valves are installed on the right side of the turning pipe.

[0013] As a further solution of the present invention: a filter layer is fixedly connected to the upper part of the interior of the filtration separation tank, and the filter layer is composed of a ball ring.

[0014] As a further solution of the present invention: a through groove is provided at the bottom of the fixing ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The integrated multi-stage separation and discharge device rotates through the rotating rod, thereby driving the first threaded sheet, the second threaded sheet and the third threaded sheet to rotate, so that the natural gas (containing water, sand, impurities, etc.) fluid enters the first cyclone tube through the process pipe section after decompression. The water, sand and impurities in the fluid are separated from the gas flow under the action of the cyclone centrifugal force and inertial force and thrown out into the first separation tank. After that, the airflow enters the second cyclone tube, the second separation tank, the third cyclone tube and the filter separation tank in turn, and performs the second and third continuous cyclone separation. Then the impurity sediment is separated by gravity through the first connecting pipe, the second connecting pipe and the third connecting pipe into the collection separation tank, and is completely isolated from the gas flow. After three separations, all the sand and liquid water in the fluid can be completely removed. The gaseous water in the airflow is adsorbed by the tower filler when passing through the filter layer, and gathers into drops and falls into the collection tank. As a result, the sand and water in the airflow are basically removed. So that it can be discharged. The combination of the above structures can achieve the effect of separating solid, liquid and gas in the fluid and the separation effect is relatively high, so that the purity of the discharged natural gas is relatively high.

[0017] In addition, the integrated multi-stage separation and discharge device starts the motor through an external power supply, and the output of the motor drives the synchronous pulley to rotate, and the cooperation of the two synchronous pulleys and the transmission belt drives the left rotating rod to rotate, and drives the surface of the flip block to rotate. The rotating flip block drives the roller to roll along the inside of the rolling groove, thereby achieving the effect of guiding the flip block when rotating, and allowing the flip block to rotate more smoothly to drive the cleaning brush to rotate and brush away the impurities on the surface of the filter, thereby achieving the effect of cleaning the surface of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the integrated multi-stage separation and discharge device;

[0019] Figure 2 It is a partial cross-sectional schematic diagram of the overall structure of the integrated multi-stage separation and discharge device;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the secondary cyclone tube in the integrated multi-stage separation and discharge device;

[0021] Figure 4 It is a left-side structural schematic diagram of the secondary cyclone tube in the integrated multi-stage separation and discharge device;

[0022] Figure 5 It is a schematic diagram of the top view cross-sectional structure of the fixed ring in the integrated multi-stage separation and discharge device;

[0023] Figure 6 It is a schematic diagram of the left-side cross-sectional structure of the fixed ring in the integrated multi-stage separation and discharge device.

[0024] In the figure: 1, primary cyclone tube; 2, flange; 3, primary separation tank; 4, first threaded sheet; 5, secondary separation tank; 6, secondary cyclone tube; 7, second threaded sheet; 8, filtration separation tank; 9, tertiary cyclone tube; 10, filtration layer; 11, gas pipeline; 12, first connecting pipe; 13, second connecting pipe; 14, third connecting pipe; 15, radar level meter; 16, collection separation tank; 17, turning pipe; 18, automatic sand drain valve; 20, sand drain pipe; 2 1. Inlet and outlet valves of steam trap; 22. Liquid inlet valve of steam trap; 23. Bypass pipe; 24. Bypass valve; 30. Partition plate; 31. Motor; 32. Synchronous pulley; 33. Transmission belt; 34. Third threaded sheet; 40. Fixed ring; 41. Filter screen; 42. Connecting ring; 44. Turning block; 45. Cleaning brush; 46. Guide groove; 47. Rolling groove; 48. Clamping block; 49. Roller; 50. Rotating rod; 51. Through groove; 60. Cross fixing frame. DETAILED DESCRIPTION

[0025] like Figure 1 , 2 As shown, the integrated multi-stage separation and discharge device includes a primary cyclone tube 1, a flange 2 is provided on the left side of the primary cyclone tube 1, and when in use, the primary cyclone tube 1 is fixedly connected to the natural gas discharge pipeline through the flange 2; the right side of the primary cyclone tube 1 is fixedly connected to a primary separation tank 3, and the primary separation tank 3 contains the right side of the primary cyclone tube 1 inside, and a rotatable first threaded sheet 4 is installed inside the primary separation tank 3.

[0026] refer to Figure 1 , 2A secondary cyclone tube 6 is fixedly connected to the interior of the primary separation tank 3, a secondary separation tank 5 is fixedly connected to the right side of the secondary cyclone tube 6, and a rotatable second threaded sheet 7 is provided inside the secondary cyclone tube 6; a tertiary cyclone tube 9 is fixedly connected to the interior of the secondary separation tank 5, and a filtering separation tank 8 is fixedly connected to the right side of the tertiary cyclone tube 9.

[0027] Specifically, the bottom of the primary separation tank 3 is fixedly connected to a first connecting pipe 12, the bottom of the secondary separation tank 5 is fixedly connected to a second connecting pipe 13, the bottom of the filtering separation tank 8 is fixedly connected to a third connecting pipe 14, and the bottoms of the first connecting pipe 12, the second connecting pipe 13 and the third connecting pipe 14 are fixedly connected to a collecting separation tank 16.

[0028] The three cyclone gravity separation tanks of multi-stage separation all have a common collection tank, which is a combination of a vertical separation tank and a horizontal tank in structure. In terms of process, water, sand and gas enter the collection tank under the action of gravity after separation. Since the volume of the collection tank is more than ten times that of the vertical separation tank, the flow speed in the tank is slow and stable, so that the falling sand and water can easily fall to the bottom of the tank and be isolated from the mainstream gas. The isolated water and sand are irreversible and can only be discharged from the tank. This ensures that the airflow after separation will no longer be mixed with the returned sand and water to affect the separation effect. After one separation, the sand and water are reduced once. After three separations, all the sand and liquid water in the fluid can be completely removed. The gaseous water in the airflow is adsorbed by the tower filler when passing through the filter layer 10, and gathers into drops and falls into the collection separation tank 16. As a result, the sand and water in the airflow are basically removed.

[0029] Preferably, a fixing ring 40 is fixedly connected to the left side of the secondary cyclone tube 6 and the tertiary cyclone tube 9, and a filter screen 41 is arranged inside the fixing ring 40. The pore size of the left filter screen 41 is larger, while the pore size of the right filter screen 41 is smaller, so as to achieve a step-by-step filtering effect.

[0030] During operation, the natural gas (containing water, sand, impurities, etc.) fluid enters the first-level cyclone tube 1 through the process pipe section after decompression. The water, sand, and impurities in the fluid are separated from the gas flow under the action of the cyclone centrifugal force and inertial force and thrown out into the first-level separation tank 3. After that, the gas flow enters the second-level cyclone tube 6, the second-level separation tank 5, the third-level cyclone tube 9, and the filtering separation tank 8 in turn for the second and third continuous cyclone separation. Then, the impurity sediment is separated by gravity through the first connecting pipe 12, the second connecting pipe 13, and the third connecting pipe 14 into the collection separation tank 16, and is completely isolated from the gas flow. At the same time, the two filter screens 41 further filter the natural gas and prevent a large amount of sediment from entering the next layer of cyclone tubes.

[0031] Preferably, a filter layer 10 is fixedly connected to the upper part of the interior of the filter separation tank 8, and a gas pipeline 11 is fixedly connected to the top of the filter separation tank 8. After the main airflow undergoes the third cyclone separation in the filter separation tank 8, it passes upward through the filter layer 10 composed of (ball rings) and then enters the gas pipeline 11. At this time, the natural gas has been purified to the maximum extent, and the output quality is effectively guaranteed.

[0032] Usually, in order to stabilize the production, most of them have to implement the bubble drainage process (the core of the bubble drainage process is to use surfactants to reduce the surface tension of water, so that stable bubbles or foams can be formed in the wellbore and formation. These bubbles or foams can effectively carry the accumulated fluid in the wellbore and near-well area during the rising process and bring it to the ground, thereby restoring or improving the production capacity of the gas well.), but defoaming after bubble drainage is a big problem. Under normal circumstances, a large amount of defoaming agents are used, and it is difficult to completely eliminate the foam in the fluid, which will damage other downstream equipment. Therefore, a second and third defoaming must be carried out.

[0033] There are two types of separators available in natural gas well stations: vertical and horizontal. Both are separators based on the principle of gravity separation, which are large in size and low in separation efficiency. In this device, cyclone separation is mainly used, so its cylinder is vertical and small in size, which provides sufficient space for implementing multi-stage separation within a limited range. In addition, the horizontal tank in the device is a collection separation tank 16, which is a longer cylinder. Each separation cylinder in the multi-stage separation is erected on the horizontal tank and is connected to each other. On the upper part of the third-stage separation tank is a tower structure filled with fillers, which is used to filter the water-gas foam in the fluid, thus forming a vertical, horizontal, and tower main structure that combines multi-stage separation into one.

[0034] After the defoamer is injected, the foaming fluid must pass through the cyclone tube before entering the first separation tank 3, the second separation tank 5 and the filtering separation tank 8. The foaming fluid is broken, adsorbed, and converged into drops through the multi-stage cyclone separation tubes, and then thrown out into the separation tank and then into the collection separation tank 16, and the main airflow is isolated so that it cannot return to the main airflow to bubble again. When passing through the filter layer 10, because the ball ring in the filter layer 10 has a large flow cross-section, fine and tortuous flow channels, it has excellent bubble breaking and adsorption into drops and makes them settle in the collection separation tank 16, eliminating the conditions for the output gas to bubble again, improving the quality of the output natural gas, and effectively protecting the downstream equipment.

[0035] In terms of technology, after water, sand and gas are separated, they enter the collection and separation tank 16 under the action of gravity. Since the volume of the collection and separation tank 16 is more than ten times that of the vertical separation tank, the flow speed in the tank is slow and stable, so that the falling sand and water can easily fall to the bottom of the tank and be isolated from the mainstream gas. The isolated water and sand are irreversible and can only be discharged from the tank. This ensures that the airflow after separation will no longer be mixed with the returned sand and water to affect the separation effect. After one separation, the sand and water are reduced once. After three separations, all the sand and liquid water in the fluid can be completely removed. The gaseous water in the airflow is adsorbed by the tower filler when passing through the filter layer 10, and gathers into drops and falls into the collection and separation tank 16. As a result, the sand and water in the airflow are basically removed.

[0036] Among the existing separation technologies, gravity separation, cyclone separation and filtration separation are all mature separation technologies, but they all have their shortcomings, but also have their own advantages. This device organically combines the three separation technologies to complement each other. These three separation technologies give full play to their respective advantages at different stages of the fluid, so that the gas, liquid and solid in the fluid can be separated to the greatest extent, ensuring the quality of the output natural gas.

[0037] refer to Figure 1 A sand discharge pipe 20 is fixedly connected to the left side of the bottom of the collecting and separating tank 16, a bypass pipe 23 is fixedly connected to the right side of the sand discharge pipe 20, a bypass valve 24 is installed on the bypass pipe 23, a turning pipe 17 is fixedly connected to the bottom of the bypass pipe 23, a steam trap liquid inlet valve 22 is installed on the left side of the turning pipe 17, an automatic sand discharge steam trap 18 is fixedly connected to the bottom of the turning pipe 17, and a steam trap inlet and outlet valves 21 are installed on the right side of the turning pipe 17.

[0038] Preferably, a radar level meter 15 is installed on the left of the top of the collection and separation tank 16. When in use, the radar level meter 15 is started by an external power supply. The radar level meter 15 detects the height of the mud-water mixture inside the collection and separation tank 16. When the height reaches the set value, according to the principle of the connector, the power chamber of the automatic sand discharge drain valve 18 also has the same liquid level height. At this time, the float in the chamber rises due to the buoyancy, and the valve handle is driven to open by the lever, and the sand and water flow passes through the valve nozzle and the discharge pipe and is discharged from the valve body. When the collection and separation tank 16 drops to a certain height, the float in the power chamber sinks due to gravity, driving the lever to close the valve handle, which completes a sand discharge and drainage process. When the liquid level in the collection tank rises to a certain high water level again, the sand discharge drain valve repeats the above discharge process, and such a cycle forms a fully automatic sand discharge and drainage function.

[0039] The cooperation of the above-mentioned sand removal components and drainage components forms an automatic sand removal and drainage system. Only with this system, the integrated multi-stage separation and drainage device can replace the functions of various equipment in the natural gas well station. The system consists of a collecting and separation tank 16 and an automatic sand removal and drainage valve 18, and its core is the automatic sand removal and drainage valve 18.

[0040] As shown in the figure, the valve group is connected to the collection and separation tank 16. When the liquid level in the collection and separation tank 16 rises to a certain height, the power chamber of the automatic sand discharge drain valve 18 also has the same liquid level according to the principle of the connector. At this time, the float in the chamber rises due to the buoyancy, and the valve handle is driven to open through the lever, and the sand and water flow through the valve nozzle, the discharge pipe, and the valve body. When the liquid level in the collection tank drops to a certain height, the float in the power chamber sinks due to gravity, driving the lever to close the valve handle, which completes a sand discharge and drainage process. When the liquid level in the collection tank rises to a certain high water level again, the automatic sand discharge drain valve 18 repeats the above discharge process, and this cycle forms a fully automatic sand discharge and drainage function.

[0041] The 18-group automatic sand drain valve consists of a sand drain valve, a normally open electric valve, a bypass electric valve, and a maintenance standby valve. When a sand drain valve fails, the fault signal is transmitted to the control box, commanding the normally open electric valve to close and the bypass valve to open. At the same time, the signal is transmitted to the central control room, and someone is sent for maintenance. The bypass electric valve opens or closes under the command of the control system according to the liquid level in the collection tank, and continues the sand drain operation until the sand drain valve is repaired and reopened. The sand drain valve is different from the ordinary drain valve. The ordinary drain valve has a very high failure rate under the scouring of sand and water flow, and the valve core may even need to be replaced once a day. Obviously, this type of drain valve cannot be used in an integrated device. The sand drain valve has a special structure to resist the scouring of sand and water flow, and the continuous operation time can reach more than 8,000 hours.

[0042] The collecting and separating tank 16 is connected to the sewage system through a sewage pipeline. The system is provided with a normally open electric valve, an operating water supply valve, a maintenance valve and a bypass valve 24. The water supply valve is provided with a good anti-sand mechanism, which can continuously and effectively remove sand and water in the collecting and separating tank 16 for a long time.

[0043] According to different working conditions in the system, the operating water supply valve can also be replaced by an electric sewage valve. At this time, a liquid level meter needs to be added, and the control system controls the opening and closing of the sewage valve through the liquid level signal to realize automatic sewage discharge.

[0044] The above structure has almost all the functions of the existing gathering and transportation equipment in the well station, such as separation, barrier, sand removal, drainage, defoaming, and transportation in the natural gas production process, and can effectively ensure the quality of gas transmission in both conventional production and foaming production. In summary, the "natural gas well station integrated multi-stage separation and transmission device" of the present invention has the characteristics of advanced technology, reasonable structure, and comprehensive functions, and is a major breakthrough in the gathering and transportation technology of natural gas well stations.

[0045] refer to Figure 3 The first-stage cyclone 1, the second-stage cyclone 6 and the third-stage cyclone 9 are fixedly connected to the right side thereof with a cross fixing frame 60, and the left side thereof is rotatably connected to the first threaded piece 4, the second threaded piece 7 and the third threaded piece 34 respectively.

[0046] Specifically, refer to Figure 2 , 4 A partition plate 30 is fixedly connected to the upper part of the interior of the primary separation tank 3, a motor 31 is fixedly connected to the top of the partition plate 30, and a synchronous pulley 32 is fixedly connected to the output end of the motor 31; a connecting ring 42 is fixedly connected to the middle position of the two filter screens 41, and a rotating rod 50 is fixedly connected to the front of the connecting ring 42, the left side of the rotating rod 50 on the left side is fixedly connected to the right side end of the first threaded sheet 4, the right side of the rotating rod 50 on the left side is fixedly connected to the left side end of the second threaded sheet 7, the right side of the rotating rod 50 on the right side is fixedly connected to the left side end of the second threaded sheet 7, and the right side end of the rotating rod 50 on the right side is fixedly connected to the left side end of the third threaded sheet 34; the surface of the rotating rod 50 on the left side is fixedly connected to the same synchronous pulley 32, and the outer sides of the two synchronous pulleys 32 are meshed with a transmission belt 33.

[0047] When in use, the motor 31 is started by an external power supply, and the output of the motor 31 drives the synchronous pulley 32 to rotate. The cooperation of the two synchronous pulleys 32 and the transmission belt 33 drives the left rotating rod 50 to rotate, thereby driving the first thread piece 4, the second thread piece 7 and the third thread piece 34 to rotate.

[0048] The filter 41 mentioned above will be contaminated with impurities on its surface while filtering natural gas. As time goes by, the impurities on the surface of the filter 41 will gradually condense on the surface of the filter 41, thereby affecting the natural gas passing through the filter 41. Therefore, a cleaning structure is proposed.

[0049] refer to Figure 4 , 5 6. A flip block 44 is fixedly connected to the rear side of the rotating rod 50, and a cleaning brush 45 is fixedly connected to the rear side of the flip block 44. The rear side surface of the cleaning brush 45 contacts the surface of the filter 41. When in use, the rotating rotating rod 50 drives the surface of the flip block 44 to rotate, drives the cleaning brush 45 to rotate and brush away impurities on the surface of the filter 41.

[0050] Specifically, a guide groove 46 is provided inside the fixing ring 40, and rolling grooves 47 are provided on the front and rear sides of the guide groove 46. The left and right ends of the flip block 44 are located inside the guide groove 46. A pair of clamping blocks 48 are fixed to the front and rear ends of the left and right sides of the flip block 44, respectively. The opposite sides of the pair of clamping blocks 48 are rotatably connected to rollers 49 through movable shafts, and the rollers 49 are rollingly connected to the rolling groove 47. When in use, the rotating flip block 44 drives the rollers 49 to roll along the inside of the rolling groove 47, thereby achieving the effect of guiding the flip block 44 when rotating, and allowing the flip block 44 to rotate more smoothly.

[0051] Preferably, a through groove 51 is formed at the bottom of the fixing ring 40, and impurities brushed off by the cleaning brush 45 will move downward due to gravity until they are discharged from the interior of the fixing ring 40 through the through groove 51 at the bottom of the fixing ring 40, thereby preventing impurities from accumulating in the fixing ring 40.

[0052] The working principle of the present invention is: when in use, the motor 31 is started by an external power supply, the output of the motor 31 drives the synchronous pulley 32 to rotate, and the cooperation of the two synchronous pulleys 32 and the transmission belt 33 drives the left rotating rod 50 to rotate, thereby driving the first threaded sheet 4, the second threaded sheet 7 and the third threaded sheet 34 to rotate, so that the natural gas (containing water, sand, impurities, etc.) fluid enters the primary cyclone tube 1 through the process pipe section after decompression, and the water, sand and impurities in the fluid are separated from the gas flow under the action of the cyclone centrifugal force and inertial force and thrown out into the primary separation tank 3, and then the air flow enters the secondary cyclone tube 6, the secondary separation tank 5, the tertiary cyclone tube 9, and the filtering separation tank 8 in turn, and performs the second and third continuous cyclone separation. Then the impurities and silt are separated by gravity and enter the collection separation tank 16 through the first connecting pipe 12, the second connecting pipe 13 and the third connecting pipe 14, and are completely isolated from the gas flow. At the same time, the two filter screens 41 further filter the natural gas and prevent a large amount of mud and sand from entering the next layer of cyclone tube; at the same time, the rotating rod 50 drives the surface of the flip block 44 to rotate, driving the cleaning brush 45 to rotate and brush away impurities on the surface of the filter screen 41.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An integrated multi-stage separation and delivery device, comprising a primary separation tank (3), one side of the primary separation tank (3) being fixedly connected to a primary cyclone tube (1), one side of the primary cyclone tube (1) being provided with a flange (2), characterized in that: A secondary cyclone tube (6) is fixedly connected to one side of the primary separation tank (3), a secondary cyclone tube (6) is fixedly connected to one side of the secondary separation tank (5), a tertiary cyclone tube (9) is fixedly connected to one side of the secondary separation tank (5), a filtering separation tank (8) is fixedly connected to the right side of the tertiary cyclone tube (9), and a gas transmission pipeline (11) is fixedly connected to the top of the filtering separation tank (8); a rotatable first threaded piece (4) is provided inside the primary cyclone tube (1), a rotatable second threaded piece (7) is provided inside the secondary cyclone tube (6), and a rotatable third threaded piece (34) is provided inside the tertiary cyclone tube (9).

2. The integrated multi-stage separation and delivery device according to claim 1, characterized in that: A cross fixing frame (60) is fixedly connected to one side of the interior of the primary cyclone tube (1), the secondary cyclone tube (6) and the tertiary cyclone tube (9); a fixing ring (40) is fixedly connected to one side of the interior of the secondary cyclone tube (6) and the tertiary cyclone tube (9) respectively; a filter screen (41) is arranged inside the fixing ring (40); and a rotatable cleaning brush (45) is attached to the surface of the filter screen (41).

3. The integrated multi-stage separation and delivery device according to claim 2, characterized in that: A connecting ring (42) is fixedly connected to the surfaces of the two filter screens (41); one side of the connecting ring (42) is rotatably connected to a rotatable rotating rod (50); the left side of the rotating rod (50) on one side is fixedly connected to the right side end of the first threaded sheet (4); the right side of the rotating rod (50) on one side is fixedly connected to the left side end of the second threaded sheet (7); the left side end of the rotating rod (50) on the other side is fixedly connected to the right side end of the second threaded sheet (7); the right side end of the rotating rod (50) on the other side is fixedly connected to the left side end of the third threaded sheet (34); one side of the rotating rod (50) is fixedly connected to a flip block (44); and one side of the flip block (44) is fixedly connected to a cleaning brush (45).

4. The integrated multi-stage separation and delivery device according to claim 3, characterized in that: A partition plate (30) is fixedly connected to the upper part of the first-stage separation tank (3), a motor (31) is fixedly connected to the top of the partition plate (30), and a synchronous pulley (32) is fixedly connected to the output end of the motor (31); a similar synchronous pulley (32) is fixedly connected to the surface of a rotating rod (50) on one side, and a transmission belt (33) is meshed on the outer sides of the two synchronous pulleys (32).

5. The integrated multi-stage separation and delivery device according to claim 3, characterized in that: A guide groove (46) is provided inside the fixing ring (40), rolling grooves (47) are provided on both sides of the guide groove (46), a pair of clamping blocks (48) are respectively fixed on the left and right sides and the front and rear ends of the flip block (44), and rollers (49) are rotatably connected to the opposite sides of the pair of clamping blocks (48) via movable shafts, and the rollers (49) are rollingly connected to the rolling grooves (47).

6. The integrated multi-stage separation and delivery device according to claim 1, characterized in that: The bottom of the primary separation tank (3) is fixedly connected to a first connecting pipe (12), the bottom of the secondary separation tank (5) is fixedly connected to a second connecting pipe (13), the bottom of the filtration separation tank (8) is fixedly connected to a third connecting pipe (14), and the bottoms of the first connecting pipe (12), the second connecting pipe (13) and the third connecting pipe (14) are fixedly connected to a collecting separation tank (16).

7. The integrated multi-stage separation and delivery device according to claim 6, characterized in that: A radar level meter (15) is installed on the left side of the top of the collecting and separating tank (16); a sand discharge pipe (20) is fixedly connected to the left side of the bottom of the collecting and separating tank (16); a bypass pipe (23) is fixedly connected to the right side of the sand discharge pipe (20); a bypass valve (24) is installed on the bypass pipe (23); a turning pipe (17) is fixedly connected to the bottom of the bypass pipe (23); a drain valve inlet valve (22) is installed on the left side of the turning pipe (17); an automatic sand discharge drain valve (18) is fixedly connected to the bottom of the turning pipe (17); and a drain valve inlet and outlet valves (21) are installed on the right side of the turning pipe (17).

8. The integrated multi-stage separation and delivery device according to claim 1, characterized in that: A filter layer (10) is fixedly connected to the upper part of the interior of the filter separation tank (8), and the filter layer (10) is composed of a ball ring.

9. The integrated multi-stage separation and delivery device according to claim 4, characterized in that: A through groove (51) is formed at the bottom of the fixing ring (40).

Images