A cyclone filtration integrated sand remover

Abstract

The present invention relates to the technical field of sand removers, and specifically discloses a cyclone filtration integrated sand remover, including a separation cylinder and a first filtration cylinder. A first discharge pipe is arranged at the bottom of the separation cylinder, and an electric control valve one is arranged on the first discharge pipe. A sand storage cylinder is arranged below the separation cylinder, and the lower end of the first discharge pipe is communicated with the upper end of the sand storage cylinder. A sand discharge port is arranged at the lower end of the sand storage cylinder. A second discharge pipe is connected to the side wall at the lower end of the separation cylinder, and an electric control valve two is arranged on the second discharge pipe. The other end of the second discharge pipe is connected to the first filtration cylinder. For the first filtration cylinder, a first liquid outlet pipe is arranged at the bottom of the first filtration cylinder, and a first liquid inlet pipe is arranged at the top of the first filtration cylinder. The first liquid inlet pipe is communicated with the second discharge pipe. A first filter element is detachably arranged in the first filtration cylinder, and the top of the first filter element is communicated with the first liquid inlet pipe. A cyclone sand remover is arranged in the separation cylinder. A feed pipe is arranged on the upper side wall of the cyclone sand remover, and an electric control valve three is arranged on the feed pipe. A second liquid outlet pipe is arranged at the top of the cyclone sand remover.

Description

Technical Field

[0001] The present invention relates to the technical field of desanders, and particularly to a cyclone filtration integrated desander. Background Art

[0002] A desander is a device widely used in multiple industries. The core function of a desander is to remove sand grains, large-particle solid impurities, etc. contained in a fluid (usually a liquid), so as to achieve the purposes of purifying the fluid, protecting the normal operation of subsequent equipment, and improving product quality. In the oil extraction industry, the crude oil produced from oil wells often contains a large amount of sediment. If no desanding treatment is carried out, these sediments will cause problems such as abrasion and blockage to oil pipelines, refining equipment, etc.

[0003] Chinese Patent CN114130550B discloses a medium-pressure cyclone desander, which includes a cylinder body with an upward-opening cavity inside and a plurality of cyclone tubes arranged inside the cylinder body. A quick-opening blind plate for opening and closing the cavity is provided at the top of the cylinder body. The plurality of cyclone tubes are detachably arranged on an inner member, and the inner member is detachably installed in the cavity. A flow splitting device for flow splitting is provided inside the inner member; a cylinder body lower cavity is formed between the bottom inside the cylinder body and the lower end of the inner member, and a flow guiding device for guiding the upper-layer liquid in the cylinder body lower cavity is provided in the middle and upper part of the cylinder body lower cavity.

[0004] Due to the setting of the middle cavity of the cylinder body in the above technical solution, impurities in the oil liquid will deposit in the middle cavity of the cylinder body under any working conditions, and cleaning work needs to be carried out after working for a period of time, which affects the working efficiency of the device and increases the maintenance cost. Summary of the Invention

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A swirl filtration integrated sand remover, comprising a separation cylinder and a first filter cylinder. The first filter cylinder is arranged outside the separation cylinder. An opening is provided on the side wall of the separation cylinder. The upper end of the separation cylinder is hermetically provided with a top cover. A first discharge pipe is arranged at the bottom of the separation cylinder. An electric control valve one is arranged on the first discharge pipe. A sand storage cylinder is arranged below the separation cylinder. The lower end of the discharge pipe is communicated with the upper end of the sand storage cylinder. A sand discharge port is arranged at the lower end of the sand storage cylinder. The lower end side wall of the separation cylinder is connected and provided with a second discharge pipe. An electric control valve two is arranged on the second discharge pipe. The other end of the second discharge pipe is connected with the first filter cylinder. For the first filter cylinder, a first liquid outlet pipe is arranged at the bottom of the first filter cylinder. A first liquid inlet pipe is arranged at the top of the first filter cylinder. The first liquid inlet pipe is communicated with the second discharge pipe. A first filter element is detachably arranged in the first filter cylinder. The top of the first filter element is communicated with the first liquid inlet pipe. A swirl sand remover is arranged in the separation cylinder. An inlet pipe is arranged on the upper side wall of the swirl sand remover. The inlet pipe passes through the opening. An electric control valve three is arranged on the inlet pipe. A second liquid outlet pipe is arranged at the top of the swirl sand remover. A sand outlet is arranged at the bottom of the swirl sand remover. A flip cover is arranged at the sand discharge port. The swirl sand remover includes an inlet section, a rotating section, a conical section and an outlet section which are connected in series from top to bottom. The inlet pipe is tangentially connected to the side wall of the inlet section. The second liquid outlet pipe is vertically connected to the middle of the upper end of the inlet section and extends into the inlet section. The inlet section and the rotating section are detachably connected. The conical section and the outlet section are detachably connected. The rotating section and the conical section are connected by a telescopic mechanism.

[0007] Preferably, the telescopic mechanism includes a number of first telescopic rods evenly arranged in a ring on the outer side wall of the rotating section. Flange plates one and two are respectively arranged at the opposite ends of the rotating section and the conical section. Through holes one and two are respectively arranged on the flange plates one and two corresponding to the positions of the first telescopic rods. The extending end of the first telescopic rod penetrates through the through hole one and the through hole two, and a locking head is detachably arranged at the end of the first telescopic rod. A flow meter is arranged on the inlet pipe.

[0008] Preferably, seals are arranged at the inner side of the opening and at the joint of the second liquid outlet pipe and the top cover.

[0009] Preferably, the first filter cylinder includes a first cylinder body. The bottom of the first cylinder body is of a conical structure. The first liquid outlet pipe is arranged at the bottom of the first cylinder body. A cylinder cover is detachably arranged at the top of the first cylinder body. The first liquid inlet pipe is arranged at the top of the cylinder cover. A partition plate is arranged in the middle of the first cylinder body. A docking sleeve is arranged in the middle of the partition plate. The bottom end of the first filter cylinder is detachably connected to the docking sleeve. An annular installation groove is arranged on the bottom surface of the cylinder cover corresponding to the position of the first filter element. A seal is arranged in the annular installation groove. A number of first liquid leakage holes are arranged through the partition plate. The first filter element is of a hollow structure.

[0010] Preferably, a pressing plate is arranged inside the first cylinder body. A plurality of liquid leakage holes II are arranged on the pressing plate. A plurality of guide rods are vertically arranged at the upper end of the pressing plate. The guide rods penetrate through the cylinder cover, and scale lines are arranged on the guide rods.

[0011] Preferably, a second filter cylinder is arranged above the separation cylinder. The second filter cylinder includes a second cylinder body. A second filter element is arranged in the middle of the second cylinder body. The second filter element is a cylinder structure with an open lower end. The lower end of the second filter element is detachably connected to the second liquid outlet pipe. An air pipe I is communicated with the outer wall of the second cylinder body. The other end of the air pipe I is connected to a gas supply device. A barometer is arranged on the second cylinder body for detecting the air pressure value inside the second cylinder body. The second liquid outlet pipe is located inside the second cylinder body and is provided with an air pipe II below the second filter element. An electric control valve IV is arranged on the air pipe II. A third liquid outlet pipe is arranged at the top of the second cylinder body 23-1. An electric control valve V is arranged on the third liquid outlet pipe.

[0012] Preferably, an annular material receiving groove is arranged at the inner bottom of the second filter element.

[0013] Preferably, the bottom of the separation cylinder is of a conical structure. A discharge pipe is connected to the bottom end of the separation cylinder. A flap is rotatably arranged at the upper port of the discharge pipe through a hinge. A second telescopic rod is obliquely upward arranged on the outer side wall of the discharge pipe. The extending end of the second telescopic rod penetrates through the discharge pipe, and a roller is arranged at the extending end of the second telescopic rod. The roller is in contact with the bottom surface of the flap. An annular baffle is arranged at the top end of the discharge pipe. The top surface of the flap is in contact with the bottom surface of the annular baffle. A sealing gasket is arranged on the top surface of the flap. A circular convex platform is arranged at the middle of the flap corresponding to the position of the middle hole of the annular baffle. The top surface of the convex platform is flush with the top surface of the annular baffle.

[0014] Preferably, the area of the central hole of the annular baffle is larger than the area of the sand outlet arranged at the bottom of the hydrocyclone.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] By arranging the first filter cylinder and the separable rotating section and conical section, when the oil flow rate is low, the filter element of the first filter cylinder is used for filtration. When the flow rate reaches the use condition, the hydrocyclone is used for sand removal, thus ensuring the sand removal effect. The solid particles filtered by the present invention can be discharged by replacing or cleaning the first filter element respectively and discharged from the sand discharge port, and will not remain in the machine body, and no complex disassembly and maintenance are required, and it is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present invention;

[0018] Figure 2 is Figure 1 the partial structural schematic diagram at A in

[0019] Figure 3 For Figure 1 Partial structural schematic diagram at position B in

[0020] Figure 4 For Figure 1 Partial structural schematic diagram at position C in

[0021] Figure 5 Overall structural schematic diagram of the second embodiment of the present invention;

[0022] Figure 6 For Figure 5 Partial structural schematic diagram at position D in

[0023] Figure 7 Overall structural schematic diagram of the third embodiment of the present invention;

[0024] Figure 8 For Figure 7 Partial structural schematic diagram at position E in

[0025] In the figure: 1. Separation cylinder; 2. Opening; 3. Top cover; 4. First discharge pipe; 5. First electric control valve; 6. Sand storage cylinder; 7. Sand discharge port; 8. Second discharge pipe; 9. Second electric control valve; 10. First filter cylinder; 11. First liquid outlet pipe; 12. First liquid inlet pipe; 13. First filter element; 14. Hydrocyclone; 15. Feed pipe; 16. Third electric control valve; 17. Second liquid outlet pipe; 18. Sand outlet; 19. Flip cover; 20. Telescopic mechanism; 22. Sealing ring; 23. Second filter cylinder; 25. Second air pipe; 26. Fourth electric control valve; 27. Discharge pipe; 28. Flap; 29. Second telescopic rod; 30. Roller; 31. Annular baffle; 32. Sealing rubber pad; 33. Boss; 10-1. First cylinder body; 10-2. Cylinder cover; 10-3. Partition board; 10-4. Docking sleeve; 10-5. Annular installation groove; 10-6. First liquid leakage hole; 10-7. Pressure plate; 10-8. Second liquid leakage hole; 10-9. Guide rod; 14-1. Inlet section; 14-2. Rotating section; 14-3. Conical section; 14-4. Outlet section; 14-5. First flange; 14-6. Second flange; 14-7. First through hole; 14-8. Second through hole; 20-1. First telescopic rod; 20-2. Locking head; 23-1. Second cylinder body; 23-2. Second filter element; 23-3. First air pipe; 23-4. Annular material receiving groove; 23-5. Fifth electric control valve; 23-6. Third liquid outlet pipe. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0029] As Figures 1-4As shown in the figure, in this embodiment, a cyclone filtration integrated sand remover includes a separation cylinder 1 and a first filter cylinder 10. The first filter cylinder 10 is arranged outside the separation cylinder 1. An opening 2 is provided on the side wall of the separation cylinder 1. The upper end of the separation cylinder 1 is hermetically provided with a top cover 3. A first discharge pipe 4 is provided at the bottom of the separation cylinder 1. An electric control valve 5 is provided on the first discharge pipe 4. A sand storage cylinder 6 is provided below the separation cylinder 1. The lower end of the first discharge pipe 4 is communicated with the upper end of the sand storage cylinder 6. A sand discharge port 7 is provided at the lower end of the sand storage cylinder 6. The lower side wall of the separation cylinder 1 is connected and provided with a second discharge pipe 8. An electric control valve 9 is provided on the second discharge pipe 8. The other end of the second discharge pipe 8 is connected to the first filter cylinder 10. For the first filter cylinder 10, a first liquid outlet pipe 11 is provided at the bottom of the first filter cylinder 10. A first liquid inlet pipe 12 is provided at the top of the first filter cylinder 10. The first liquid inlet pipe 12 is communicated with the second discharge pipe 8. A first filter element 13 is detachably arranged in the first filter cylinder 10. The top of the first filter element 13 is communicated with the first liquid inlet pipe 12. A cyclone sand remover 14 is arranged in the separation cylinder 1. An upper side wall of the cyclone sand remover 14 is provided with a feed pipe 15. The feed pipe 15 passes through the opening 2. An electric control valve 3 is provided on the feed pipe 15. A second liquid outlet pipe 17 is provided at the top of the cyclone sand remover 14. A sand outlet 18 is provided at the bottom of the cyclone sand remover 14. A flip cover 19 is provided at the sand discharge port 7 through a hinge. The flip cover 19 is locked by a buckle.

[0030] In this embodiment, the cyclone sand remover 14 includes an inlet section 14-1, a rotating section 14-2, a conical section 14-3 and an outlet section 14-4 which are connected in series from top to bottom. The feed pipe 15 is tangentially connected to the side wall of the inlet section 14-1. The second liquid outlet pipe 17 is vertically connected to the middle of the upper end of the inlet section 14-1 and extends into the inlet section 14-1. The inlet section 14-1 and the rotating section 14-2 are detachably connected. The conical section 14-3 and the outlet section 14-4 are detachably connected. The rotating section 14-2 and the conical section 14-3 are connected by a telescopic mechanism 20.

[0031] In this embodiment, the telescopic mechanism 20 includes a number of first telescopic rods 20-1 which are annularly and evenly arranged on the outer side wall of the rotating section 14-2. Opposite ends of the rotating section 14-2 and the conical section 14-3 are respectively provided with a first flange 14-5 and a second flange 14-6. Through holes 14-7 and 14-8 corresponding to the positions of the first telescopic rods 20-1 are respectively provided on the first flange 14-5 and the second flange 14-6. The extended ends of the first telescopic rods 20-1 penetrate through the through holes 14-7 and 14-8. And a locking head 20-2 is detachably arranged at the end of the first telescopic rod 20-1 by a thread. A flow meter is provided on the feed pipe 15. In this embodiment, the first telescopic rod 20-1 is an electric control telescopic rod.

[0032] In this embodiment, sealing rings 22 are provided inside the opening 2 and at the joint of the second liquid outlet pipe 17 and the top cover 3.

[0033] In this embodiment, the first filter cartridge 10 includes a first cylinder body 10-1. The bottom of the first cylinder body 10-1 is of a conical structure. The first liquid outlet pipe 11 is arranged at the bottom of the first cylinder body 10-1. A cylinder cover 10-2 is detachably arranged at the top of the first cylinder body 10-1. The first liquid inlet pipe 12 is arranged at the top of the cylinder cover 10-2. A partition plate 10-3 is arranged in the middle of the first cylinder body 10-1. A docking sleeve 10-4 is arranged in the middle of the partition plate 10-3. The bottom end of the first filter cartridge 10 is threadedly connected to the docking sleeve 10-4. An annular installation groove 10-5 is arranged on the bottom surface of the cylinder cover 10-2 corresponding to the position of the first filter element 13. A sealing ring 22 is arranged in the annular installation groove 10-5. A number of first liquid leakage holes 10-6 are arranged through the partition plate 10-3. The first filter element 13 is of a hollow structure.

[0034] In this embodiment, a pressing plate 10-7 is arranged in the first cylinder body 10-1. A number of second liquid leakage holes 10-8 are arranged on the pressing plate 10-7. A number of guide rods 10-9 are vertically arranged at the upper end of the pressing plate 10-7. The guide rods 10-9 penetrate through the cylinder cover 10-2. Scale lines are arranged on the guide rods 10-9.

[0035] The working principle and beneficial effects of the above technical solution are as follows:

[0036] During use, the oil fluid enters the hydrocyclone 14 from the feed pipe 15. The flow meter constantly detects the flow rate of the oil fluid and transmits the flow rate data to the control processor in real time. In this embodiment, when the flow rate of the oil fluid is lower than 8 m / s, the control processor first controls the first electronic control valve 5 to close and opens the second electronic control valve 9. Then, it controls the first telescopic rod 20-1 to extend, separating the rotating section 14-2 and the conical section 14-3. The oil fluid directly flows out from the rotating section 14-2 and enters the first filter cartridge 10 through the second discharge pipe 8. The oil fluid is filtered by the first filter element 13 and flows out from the first liquid outlet pipe 11. During maintenance, the first filter element 13 is removed for cleaning or replacement to ensure the filtering effect. When the flow rate of the oil fluid is lower than 8 m / s, the control processor first controls the first electronic control valve 5 to open and closes the second electronic control valve 9. Then, it controls the first telescopic rod 20-1 to contract, combining the rotating section 14-2 and the conical section 14-3. The solid particles in the oil fluid enter the hydrocyclone tangentially from the feed pipe 15 with a certain speed along with the oil fluid, forming a strong rotational motion in the tank body and generating centrifugal force. Since the density of the solid particles is greater than that of the oil fluid, under the action of the centrifugal force, the solid particles are quickly thrown towards the inner wall of the hydrocyclone and move spirally downward along with the oil fluid near the wall surface. As the water flow enters the conical section 14-3, the rotation radius gradually decreases and the centrifugal force further increases, causing the sand particles to adhere more closely to the tank wall and accelerating their movement towards the bottom. When the solid particles accumulate to a certain extent on the inner wall of the hydrocyclone, due to the action of gravity, they automatically fall out from the sand outlet 18 and are discharged through the sand discharge port 7 provided at the lower end of the sand storage cylinder 6. While the solid particles are separated and discharged, the purified oil fluid forms an inner swirl, gradually converges towards the central area of the hydrocyclone, and flows out through the central second liquid outlet pipe 17.

[0037] Compared with the prior art, the present invention, by providing the first filter cartridge and the separable rotating section 14-2 and conical section 14-3, enables, when the flow rate of the oil fluid is low, filtering by the filter element of the first filter cartridge, and when the flow rate reaches the operating conditions, sand removal by the hydrocyclone, thus ensuring the sand removal effect. The solid particles filtered out by the present invention can be discharged respectively by replacing or cleaning the first filter element and from the sand discharge port 7, without remaining in the machine body, and do not require complex disassembly and maintenance, being convenient to use. Embodiment 2

[0038] As Figures 5-6As shown in the figure, in this embodiment, a second filter cylinder 23 is further provided above the separation cylinder 1. The second filter cylinder 23 includes a second cylinder body 23-1. A second filter element 23-2 is provided in the middle of the second cylinder body 23-1. The second filter element 23-2 is a cylinder structure with an open bottom end 2. The lower end of the second filter element 23-2 is detachably connected to the second liquid outlet pipe 17. A first air pipe 23-3 is connected to the outer wall of the second cylinder body 23-1, and the other end of the first air pipe 23-3 is connected to a gas supply device. A barometer is provided on the second cylinder body 23-1 for detecting the air pressure value inside the second cylinder body 23-1. A second air pipe 25 is provided in the second cylinder body 23-1 and below the second filter element 23-2 where the second liquid outlet pipe 17 is located. An electric control valve four 26 is provided on the second air pipe 25. A third liquid outlet pipe 23-6 is provided at the top of the second cylinder body 23-1, and an electric control valve five 23-5 is provided on the third liquid outlet pipe 23-6.

[0039] In this embodiment, an annular material receiving groove 23-4 is provided at the inner bottom of the second filter element 23-2.

[0040] The working principle and beneficial effects of the above technical solution are as follows:

[0041] During use, when the oil liquid after sand removal flows out from the second liquid outlet pipe 17, it enters the second filter cylinder 23 and is secondarily filtered through the second filter element 23-2, and then flows out from the third liquid outlet pipe 23-6, thereby further reducing the content of solid particles in the oil liquid. After using for a period of time, when it is necessary to maintain the second filter element, first close the electric control valve three 16, close the electric control valve two 9, close the electric control valve one 5, the electric control valve five 23-5, open the electric control valve four 26, and then supply gas into the second cylinder body 23-1 through the gas supply device and observe it in real time through the barometer. When the air pressure reaches the preset value, close the electric control valve four 26 and open the electric control valve one 5. As the air pressure inside the second filter element drops sharply, under the action of the internal and external pressure difference, the solid particles attached to the second filter element 23-2 fall off and finally are discharged from the sand discharge port 7. The second filter element of the present invention can be maintained without disassembly, and the operation is simple and convenient, thereby improving the use efficiency. Embodiment Three

[0042] As Figures 7-8As shown, in this embodiment, the first discharge pipe 4 and the first electric control valve 5 are cancelled. The bottom of the separation cylinder 1 is a conical structure. The bottom end of the separation cylinder 1 is connected with a discharge pipe 27. A flap 28 is rotatably arranged inside the upper port of the discharge pipe 27 through a hinge. An extension rod two 29 is arranged obliquely upward on the outer side wall of the discharge pipe 27. The extending end of the extension rod two 29 penetrates through the discharge pipe 27, and a roller 30 is arranged at the extending end of the extension rod two 29. The roller 30 is in contact with the bottom surface of the flap 28. An annular baffle 31 is arranged at the top end of the discharge pipe 27. The top surface of the flap 28 is in contact with the bottom surface of the annular baffle 31. A sealing gasket 32 is arranged on the top surface of the flap 28. A circular boss 33 is arranged at the middle part of the flap 28 corresponding to the position of the middle hole of the annular baffle 31. The top surface of the boss 33 is flush with the top surface of the annular baffle 31. In this embodiment, the extension rod two 29 is an electric control extension rod.

[0043] In this embodiment, the area of the central hole of the annular baffle 31 is larger than the area of the sand outlet 18 arranged at the bottom of the hydrocyclone 14.

[0044] The working principle and beneficial effects of the above technical solution are as follows:

[0045] In this embodiment, by controlling the extension and retraction of the extension rod two 29, the opening and closing of the flap 28 are controlled, and thus the opening and closing of the bottom of the separation cylinder 1 are controlled. Compared with using a valve, in this embodiment, the top surface of the flap 28 can be flush with the bottom of the separation cylinder 1, so as to reduce the accumulation of oil liquid at the bottom of the separation cylinder 1, make the oil liquid filtration more thorough, and avoid losses.

[0046] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent replacements or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A cyclone filter integrated desander, characterized in that: include, A separation cylinder (1) and a filter cylinder (10), wherein the filter cylinder (10) is arranged outside the separation cylinder (1), a side wall of the separation cylinder (1) is provided with an opening (2), the upper end of the separation cylinder (1) is sealed with a top cover (3), a discharge pipe (4) is provided at the bottom of the separation cylinder (1), an electric control valve (5) is provided on the discharge pipe (4), a sand storage cylinder (6) is provided below the separation cylinder (1), the lower end of the discharge pipe is connected to the upper end of the sand storage cylinder (6), a sand discharge port (7) is provided at the lower end of the sand storage cylinder (6), a discharge pipe (8) is connected to the side wall of the lower end of the separation cylinder (1), an electric control valve (9) is provided on the discharge pipe (8), the other end of the discharge pipe (8) is connected to the filter cylinder (10), the filter cylinder (10) and the filter cylinder A liquid outlet pipe (11) is arranged at the bottom of the filter cartridge (10), a liquid inlet pipe (12) is arranged at the top of the filter cartridge (10), and the liquid inlet pipe (12) is connected to the discharge pipe (8). A filter element (13) is detachably arranged in the filter cartridge (10), and the top of the filter element (13) is connected to the liquid inlet pipe (12). A cyclone desander (14) is arranged in the separation cartridge (1), and a feed pipe (15) is arranged on the upper side wall of the cyclone desander (14), and the feed pipe (15) passes through the opening (2). An electric control valve (16) is arranged on the feed pipe (15), a liquid outlet pipe (17) is arranged at the top of the cyclone desander (14), a sand outlet (18) is arranged at the bottom of the cyclone desander (14), and a flip cover (19) is arranged at the sand outlet (7). The cyclone desander (14) comprises an inlet section (14-1), a rotating section (14-2), a conical section (14-3) and an outlet section (14-4) which are arranged in series from top to bottom; the feed pipe (15) is tangentially connected to the side wall of the inlet section (14-1); a second liquid outlet pipe (17) is vertically connected to the middle of the upper end of the inlet section (14-1) and extends into the inlet section (14-1); the inlet section (14-1) and the rotating section (14-2) are detachably connected; the conical section (14-3) and the outlet section (14-4) are detachably connected; and the rotating section (14-2) and the conical section (14-3) are connected via a telescopic mechanism (20).

2. The cyclone filter integrated sand remover according to claim 1, characterized in that: The telescopic mechanism (20) comprises a plurality of telescopic rods (20-1) uniformly arranged in an annular shape on the outer wall of the rotating section (14-2); a flange (14-5) and a flange (14-6) are respectively arranged at opposite ends of the rotating section (14-2) and the conical section (14-3); through holes (14-7) and through holes (14-8) are respectively arranged at positions of the flanges (14-5) and the flanges (14-6) corresponding to the positions of the telescopic rods (20-1); the extended ends of the telescopic rods (20-1) pass through the through holes (14-7) and the through holes (14-8); and a removable locking head (20-2) is arranged at the end of the telescopic rods (20-1); and a flow meter is arranged on the feed pipe (15).

3. The cyclone filter integrated desander according to claim 2, characterized in that: A sealing ring (22) is provided on the inner side of the opening (2) and at the junction of the second liquid outlet pipe (17) and the top cover (3).

4. The cyclone filter integrated desander according to claim 1, characterized in that: The filter cartridge 1 (10) comprises a cartridge body 1 (10-1), the bottom of the cartridge body 1 (10-1) being a conical structure, the liquid outlet pipe 1 (11) being arranged at the bottom of the cartridge body 1 (10-1), the top of the cartridge body 1 (10-1) being detachably provided with a cartridge cover (10-2), the liquid inlet pipe 1 (12) being arranged at the top of the cartridge cover (10-2), the middle of the cartridge body 1 (10-1) being provided with a partition plate (10-3), the partition plate (10-3) A docking sleeve (10-4) is provided in the middle, and the bottom end of the filter cartridge (10) is detachably connected to the docking sleeve (10-4). An annular mounting groove (10-5) is provided on the bottom surface of the cartridge cover (10-2) at a position corresponding to the filter cartridge (13), and a sealing ring (22) is provided in the annular mounting groove (10-5). A plurality of liquid leakage holes (10-6) are provided through the partition (10-3), and the filter cartridge (13) is a hollow structure.

5. The cyclone filter integrated desander according to claim 4, characterized in that: A pressure plate (10-7) is arranged inside the cylinder body (10-1), a plurality of second leakage holes (10-8) are arranged on the pressure plate (10-7), a plurality of guide rods (10-9) are vertically arranged on the upper end of the pressure plate (10-7), the guide rods (10-9) penetrate the cylinder cover (10-2), and scale lines are arranged on the guide rods (10-9).

6. The cyclone filter integrated desander according to claim 1, characterized in that: A second filter cartridge (23) is arranged above the separation cartridge (1), the second filter cartridge (23) comprising a second cartridge body (23-1), a second filter element (23-2) being arranged in the middle of the second cartridge body (23-1), the second filter element (23-2) being a cartridge structure with an opening (2) at the lower end, the lower end of the second filter element (23-2) being detachably connected to the second liquid outlet pipe (17), the outer wall of the second cartridge body (23-1) being connected to an air pipe (23-3), the other end of the air pipe (23-3) being connected to the air supply device The cylinder body 2 (23-1) is connected to the cylinder body 2 (23-1), and a barometer is arranged on the cylinder body 2 (23-1) for detecting the air pressure value in the cylinder body 2 (23-1). The liquid outlet pipe 2 (17) is located in the cylinder body 2 (23-1) and is provided with an air pipe 2 (25) below the filter element 2 (23-2). The air pipe 2 (25) is provided with an electric control valve 4 (26). The top of the cylinder body 2 (23-1) is provided with a liquid outlet pipe 3 (23-6), and the liquid outlet pipe 3 (23-6) is provided with an electric control valve 5 (23-5).

7. The cyclone filter integrated sand remover according to claim 6, characterized in that: An annular material receiving groove (23-4) is provided at the inner bottom of the second filter element (23-2).

8. The cyclone filter integrated desander according to claim 1, characterized in that: The bottom of the separation cylinder (1) is a conical structure. The bottom end of the separation cylinder (1) is connected to a discharge pipe (27). A flap (28) is rotatably provided at the upper end of the discharge pipe (27) through a hinge. A second telescopic rod (29) is obliquely provided on the outer wall of the discharge pipe (27). The protruding end of the second telescopic rod (29) passes through the discharge pipe (27). A roller (30) is provided at the protruding end of the second telescopic rod (29). The roller (30) is provided at the upper end of the discharge pipe (27). 0) is in contact with the bottom surface of the flap (28), an annular baffle (31) is provided at the top end of the discharge pipe (27), the top surface of the flap (28) is in contact with the bottom surface of the annular baffle (31), a sealing rubber pad (32) is provided on the top surface of the flap (28), a circular boss (33) is provided at the middle of the flap (28) corresponding to the position of the middle hole of the annular baffle (31), and the top surface of the boss (33) is flush with the top surface of the annular baffle (31).

9. The cyclone filter integrated desander according to claim 8, characterized in that: The area of ​​the central hole of the annular baffle (31) is larger than the area of ​​the sand outlet (18) provided at the bottom of the cyclone desander (14).

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