Skid-mounted integrated device for polymer preparation and injection

Abstract

A skid-mounted integrated device for polymer preparation and injection, comprising a dissolution tank (3) arranged between a top frame (1) and a bottom frame (2). Vertical columns (4) are fixedly mounted at four corners of the top frame (1), respectively, and bottom ends of the four vertical columns (4) are fixedly mounted at four corners of the bottom frame (2), respectively; a water tank (5) is fixedly mounted on the top frame (1); two maturation tanks (6) are fixedly mounted on the bottom frame (2); steps are provided on opposite sides of the two maturation tanks (6); and the steps of the two maturation tanks (6) are fixedly mounted to the dissolution tank (3); and a feed cylinder (7) is provided in the middle of the water tank (5), and an annular feed groove is provided in the feed cylinder (7). The top frame (1), the bottom frame (2) and the vertical columns (4) form an apparatus frame structure, the water tank (5) is mounted on the top frame (1), the two maturation tanks (6) are mounted on the bottom frame (2), the feed cylinder (7) is embedded in the middle of the water tank (5), and the dissolution tank (3) is arranged at the steps of the two maturation tanks (6), such that the water tank (5), the maturation tanks (6), the feed cylinder (7) and the dissolution tank (3) are compactly mounted on the frame structure. Such an arrangement enables the device to form a block-type integrated structure, thereby increasing the space utilization rate.

Description

A polymer dispensing skid-mounted integrated device Technical Field

[0001] This invention relates to polymer dispensing technology, and more particularly to a skid-mounted integrated polymer dispensing device. Background Technology

[0002] Currently, primary oil recovery typically refers to extracting oil using reservoir energy; secondary oil recovery involves injecting water and gas into the reservoir to replenish its energy; and tertiary oil recovery uses chemical substances to improve the properties between oil, gas, water, and rock to extract more oil. The main methods of tertiary oil recovery include chemical flooding, thermal recovery, miscible flooding, and microbial flooding. Chemical flooding is a process that involves dissolving different chemical agents in water and injecting them in batches into the reservoir after secondary oil recovery. This includes polymer flooding, alkaline flooding, surfactant flooding, composite flooding, and foam flooding. Its basic principle is to increase the viscosity of the injected formation fluid while reducing the rock's ability to "bind" the crude oil, thereby improving sweep efficiency and displacement efficiency.

[0003] Polymer flooding is a commonly used and effective method for enhancing crude oil production in oilfields. By injecting polymer solutions, the viscosity of the aqueous phase can be increased, the oil-water mobility ratio can be improved, the displacement front can be made more stable, and the crude oil recovery rate can be further improved. Skid-mounted equipment is a form of equipment frame and overall equipment combination. In tertiary oil recovery, polymer injection skid-mounted equipment is widely used in oilfield polymer injection sites, which has revolutionized the conventional polymer injection station process equipment in oilfields. Before carrying out tertiary oil recovery injection, polymer dry powder needs to be converted into injectable mature polymer mother liquor. The polymer dry powder is converted through a series of physical processes such as dispersion, dissolution, stirring and maturation in water to reach the finished polymer mother liquor that meets the injection standards.

[0004] Existing polymer injection skid-mounted devices for tertiary oil recovery are often not conducive to the tight assembly of the equipment frame and the overall equipment, resulting in a large waste of space. In addition, existing polymer injection skid-mounted devices are often not conducive to the dispersion and dissolution of polymer dry powder in water, and are prone to producing polymer solutions with fish eyes and clumps. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated polymer dispensing skid-mounted device to solve the problems that existing polymer dispensing skid-mounted devices often make it difficult to tightly assemble the equipment frame and the whole equipment, and make it difficult to disperse and dissolve polymer dry powder in water.

[0006] To address the aforementioned problems, this invention provides a polymer dispensing skid-mounted integrated device, comprising a dissolving tank disposed between a top frame and a bottom frame. Uprights are fixedly installed at the four corners of the top frame, and the bottom ends of the four uprights are fixedly installed at the four corners of the bottom frame. A water tank is fixedly installed on the top frame, and two curing tanks are fixedly installed on the bottom frame. Steps are provided on opposite sides of the two curing tanks, and the steps of the two curing tanks are fixedly installed to the dissolving tank. A feed cylinder is located in the middle of the water tank, and an annular feed trough is provided inside the feed cylinder. A water injection pipe is fixedly installed in the middle of the feed cylinder. The bottom of the feed trough is conical, and multiple discharge holes arranged in an annular array are opened at the bottom of the feed trough. The bottom of the feed cylinder penetrates the top frame and is inserted into the dissolving tank. The two sides of the dissolving tank are connected to the corresponding curing tanks via connecting pipes.

[0007] The bottom of the water injection pipe is fixedly connected to a constricted pipe, and a rotatable umbrella-shaped disk is provided below the constricted pipe. Multiple inclined plates arranged in a circular array are fixed on the umbrella-shaped disk. An umbrella-shaped cover is fixed to the bottom of the constricted pipe. There is a gap between the umbrella-shaped cover and the umbrella-shaped disk, and the multiple inclined plates are located within the gap.

[0008] The polymer dispensing skid-mounted integrated device provided by the present invention also has the following technical features: further, a recess is provided on one side of the top of the water tank, a water pump is fixedly installed in the recess, an inlet pipe is installed at the inlet of the water pump, an outlet pipe is installed at the outlet of the water pump, the inlet pipe is inserted into the water tank, and the free end of the outlet pipe is fixedly connected to the top end of the water injection pipe.

[0009] Furthermore, the bottom of the water tank is provided with two upper recesses, each containing a motor. The motors are fixedly installed with the top frame, and the output ends of the motors are fixedly connected to connecting shafts. The free ends of the two connecting shafts are respectively inserted into the corresponding maturation boxes, and a stirring component is fixedly installed at the end of the connecting shaft inserted into the corresponding maturation box.

[0010] Furthermore, the water tank is provided with a water inlet at the top, and a detachable cap is provided inside the water inlet. The maturation tank is provided with a rotatable top cover at the top, and an exhaust hole is provided on the top cover. The exhaust hole can communicate with the top hole. The bottoms of the two maturation tanks are respectively fixedly connected to a discharge pipe, and a valve is provided on the discharge pipe.

[0011] Furthermore, a solenoid valve is installed on the connecting pipe.

[0012] Furthermore, a cylinder is fixed in the middle of the bottom wall of the dissolving tank, the top of the cylinder extends into the water injection pipe and is rotatably connected to a turbine, and a sleeve is fixed at the bottom of the turbine, with the surface of the sleeve fixedly connected to an umbrella-shaped disk.

[0013] Furthermore, the bottom of the feed cylinder is provided with a relief groove, and a rotatable internal gear ring is provided in the relief groove. A blocking ring is provided on the outside of the internal gear ring. Multiple valve holes corresponding to the discharge holes are opened on the blocking ring. The valve holes can coincide with or stagger the corresponding discharge holes. The bottom of the feed cylinder is provided with an annular groove, and a motor is fixedly installed in the annular groove. A rotatable gear is provided in the relief groove. The gear meshes with the internal gear ring. The output end of the motor is fixedly installed at the center of the gear.

[0014] Furthermore, a rotatable rotating ring is provided in the annular groove, and multiple paddles arranged in a circular array are fixed on the rotating ring. The paddles are located below the blocking ring. A connecting rod is fixed at the edge of the umbrella-shaped disk, and the free end of the connecting rod is fixedly connected to the bottom of the rotating ring. A conical cover is fixed at the bottom of the feed cylinder, and the conical cover is located inside the dissolving tank. An inner buckle plate is fixed at the bottom edge of the dissolving tank.

[0015] Furthermore, a bent rod is fixed to one of the dial plates, and a V-shaped spring is fixed to the bent rod, the top of which can extend into the corresponding valve hole.

[0016] Furthermore, a fixing rod is fixed to the top of the feed cylinder, and a cover is detachably connected to the top of the feed cylinder. The cover has an opening for the water outlet pipe to pass through, and the fixing rod can block the opening of the cover.

[0017] This invention has the following beneficial effects: By constructing a frame structure consisting of a top frame, a bottom frame, and uprights, with the water tank mounted on the top frame, two curing tanks mounted on the bottom frame, and the feed cylinder embedded in the middle of the water tank, and the dissolving tank located at the step of the two curing tanks, the water tank, curing tanks, feed cylinder, and dissolving tank are compactly installed on the frame structure, making the device a block-like integrated structure. This increases space utilization and avoids wasting a large amount of space. Water is injected into the water injection pipe, and the water flows into the constricted pipe. Then, the umbrella-shaped disc rotates, and water flows into the gap between the umbrella-shaped cover and the umbrella-shaped disc. The rotation of the umbrella-shaped disc causes the inclined plate to move the water flow, making the water flow form a rotating umbrella-shaped water curtain. The polymer dry powder is fed through multiple annularly arranged discharge holes at the bottom of the feed cylinder, so that the polymer dry powder is fed into the rotating umbrella-shaped water curtain in an annular manner, which mixes the dry powder with the water curtain, thereby dispersing the polymer dry powder and dissolving it in water. This also avoids the polymer dry powder being poured directly into the water, thus avoiding the preparation of polymer solutions with fish eyes or clumps. Attached Figure Description

[0018] Figure 1 is an isometric view of an embodiment of the present invention;

[0019] Figure 2 is a front sectional view of an embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of the structure of the dissolving tank in an embodiment of the present invention;

[0021] Figure 4 is a schematic diagram of the rotating ring and the dial plate in an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of the turbine and umbrella-shaped disk in an embodiment of the present invention;

[0023] Figure 6 is a schematic diagram of the structure of the lever, the bent rod and the spring in an embodiment of the present invention;

[0024] Figure 7 is an enlarged structural schematic diagram of point A in Figure 2 of the embodiment of the present invention;

[0025] Figure 8 is an enlarged structural schematic diagram of section B in Figure 2 of the embodiment of the present invention. Detailed Implementation

[0026] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0027] As shown in Figures 1 to 8, in an embodiment of the polymer dispensing skid-mounted integrated device of the present invention, the polymer dispensing skid-mounted integrated device includes a dissolving tank 3 disposed between a top frame 1 and a bottom frame 2. Uprights 4 are fixedly installed at the four corners of the top frame 1, and the bottom ends of the four uprights 4 are fixedly installed at the four corners of the bottom frame 2. A water tank 5 is fixedly installed on the top frame 1, and two curing tanks 6 are fixedly installed on the bottom frame 2. Steps are provided on opposite sides of the two curing tanks 6, and the steps of the two curing tanks 6 are fixedly installed to the dissolving tank 3. A feed cylinder 7 is provided in the middle of the water tank 5, and an annular feed trough is provided inside the feed cylinder 7. A water injection pipe 8 is fixed in the middle of the feed cylinder 7, and the bottom of the feed trough is conical. The bottom of the feeding trough has multiple discharge holes arranged in a ring array. The bottom of the feeding cylinder 7 passes through the top frame 1 and is inserted into the dissolving tank 3. The two sides of the dissolving tank 3 are connected to the corresponding maturation tank 6 via connecting pipes 9. The equipment frame structure is formed by the top frame 1, the bottom frame 2 and the uprights 4. The water tank 5 is installed on the top frame 1, the two maturation tanks 6 are installed on the bottom frame 2, and the feeding cylinder 7 is embedded in the middle of the water tank 5. The dissolving tank 3 is located at the step of the two maturation tanks 6. The water tank 5, the maturation tank 6, the feeding cylinder 7 and the dissolving tank 3 are compactly installed on the frame structure, so that the device forms a block-shaped integrated structure, thereby increasing the space utilization rate and avoiding the waste of a large space area.

[0028] A constricted pipe 10 is fixedly connected to the bottom of the water injection pipe 8. A rotatable umbrella-shaped disk 11 is provided below the constricted pipe 10. Multiple inclined plates 12 arranged in a circular array are fixed on the umbrella-shaped disk 11. An umbrella-shaped cover 13 is fixed to the bottom of the constricted pipe 10. There is a gap between the umbrella-shaped cover 13 and the umbrella-shaped disk 11. The multiple inclined plates 12 are all located in the gap. When water is injected into the water injection pipe 8, the water flows into the constricted pipe 10, and the umbrella-shaped disk 11 rotates, allowing the water to flow between the umbrella-shaped cover 13 and the umbrella-shaped disk 11. At the gap, the umbrella-shaped disk 11 rotates, causing the inclined plate 12 to move the water flow, forming a rotating umbrella-shaped water curtain. The polymer dry powder is fed through multiple annularly arranged discharge holes at the bottom of the feed cylinder 7, so that the polymer dry powder is fed into the rotating umbrella-shaped water curtain in an annular manner, which mixes the dry powder with the water curtain, thereby dispersing the polymer dry powder and dissolving it in water. This also prevents the polymer dry powder from being poured directly into the water, thus avoiding the preparation of polymer solutions with fish eyes or clumps.

[0029] In one embodiment of this application, preferably, a recess 14 is provided on one side of the top of the water tank 5, and a water pump 15 is fixedly installed in the recess 14. The water inlet of the water pump 15 is equipped with an inlet pipe 16, and the water outlet of the water pump 15 is equipped with an outlet pipe 17. The inlet pipe 16 is inserted into the water tank 5, and the free end of the outlet pipe 17 is fixedly connected to the top of the water injection pipe 8. By installing the water pump 15 in the recess 14 on the top of the water tank 5, the position of the water pump 15 is arranged to make the various mechanisms of the device compact and avoid waste of space. By starting the water pump 15, the water source inside the water tank 5 can be drawn into the water injection pipe 8 through the inlet pipe 16 and the outlet pipe 17 for water injection.

[0030] In one embodiment of this application, preferably, the bottom of the water tank 5 is provided with two upper recesses 18, and motors 19 are respectively provided in the two upper recesses 18. The motors 19 are fixedly installed with the top frame 1. The output end of the motors 19 is fixedly connected to a connecting shaft 20. The free ends of the two connecting shafts 20 are respectively inserted into the corresponding maturation tanks 6. A stirring element 21 is fixedly installed at one end of the connecting shaft 20 inserted into the corresponding maturation tank 6. By placing the two motors 19 in the upper recesses 18 at the bottom of the water tank 5, the position of the motors 19 is arranged. By starting the motors 19, the connecting shafts 20 can be driven to rotate, thereby driving the stirring element 21 to stir and mature the solution in the maturation tank 6.

[0031] In one embodiment of this application, preferably, the top of the water tank 5 is provided with a water inlet hole, and a detachable cap 22 is provided inside the water inlet hole. The top of the curing tank 6 is provided with a top hole, and the top of the curing tank 6 is provided with a rotatable top cover 23. The top cover 23 is provided with an exhaust hole, which can communicate with the top hole. By rotating the top cover 23, the exhaust hole can overlap and communicate with the corresponding top hole or completely block it. When the exhaust hole overlaps and communicates with the corresponding top hole, the exhaust hole can be used to vent air into the curing tank 6. When the exhaust hole completely blocks the corresponding top hole, when the solution in the curing tank 6 is at a certain height and the corresponding solenoid valve 26 is closed, the curing tank 6 is in a sealed state. The stirring element 21 stirs and cures the solution in the sealed curing tank 6. The bottoms of the two curing tanks 6 are respectively fixedly connected to a discharge pipe 24, and a valve 25 is provided on the discharge pipe 24. By opening the cap 22, water can be injected into or cleaned into the water tank 5.

[0032] In one embodiment of this application, preferably, a solenoid valve 26 is installed on the connecting pipe 9. By installing the solenoid valve 26 on the connecting pipe 9, one solenoid valve 26 is opened and the other solenoid valve 26 is closed. The solution dissolved in the dissolving tank 3 enters the corresponding curing tank 6 through the opened solenoid valve 26 and the connecting pipe 9. When the polymer solution in the curing tank 6 reaches a certain amount, the solenoid valve 26 is closed and the other solenoid valve 26 is opened, so that the solution dissolved in the dissolving tank 3 enters the other curing tank 6.

[0033] In one embodiment of this application, preferably, a cylinder 27 is fixed in the middle of the bottom wall of the dissolving tank 3, the top end of the cylinder 27 extends into the water injection pipe 8 and is rotatably connected to a turbine 28, the bottom of the turbine 28 is fixed with a sleeve 29, the surface of the sleeve 29 is fixedly connected to the umbrella-shaped disk 11, and the water flow in the water injection pipe 8 can drive the turbine 28, the sleeve 29 and the umbrella-shaped disk 11 to rotate.

[0034] In one embodiment of this application, preferably, the bottom of the feed cylinder 7 is provided with a clearance groove, and a rotatable internal gear ring 30 is provided in the clearance groove. A blocking ring 31 is provided on the outer side of the internal gear ring 30. A plurality of valve holes 32 corresponding one-to-one with the discharge holes are opened on the blocking ring 31. The valve holes 32 can coincide with or stagger the corresponding discharge holes. The bottom of the feed cylinder 7 is provided with an annular groove, and a motor 33 is fixedly installed in the annular groove. The motor 33 is a brake motor. When the motor 33 rotates a certain number of revolutions, it achieves rapid braking and stopping in the power-off state. The clearance groove is provided with There is a rotatable gear 34 that meshes with the internal gear ring 30. The output end of the motor 33 is fixedly installed at the center of the gear 34. When the device stops running, the valve hole 32 on the blocking ring 31 is completely intersected with the corresponding discharge hole, thereby blocking the polymer dry powder. When the device is in use, the motor 33 is started to drive the gear 34 to rotate at a certain angle, so that the gear 34 drives the internal gear ring 30 and the blocking ring 31 to rotate, so that the valve hole 32 is completely overlapped with the corresponding discharge hole, thereby facilitating the discharge of polymer dry powder.

[0035] In one embodiment of this application, preferably, a rotatable rotating ring 35 is provided in the annular groove, and a plurality of paddles 36 arranged in a ring array are fixed on the rotating ring 35. The paddles 36 are located below the barrier ring 31. A connecting rod 37 is fixed at the edge of the umbrella-shaped disk 11, and the free end of the connecting rod 37 is fixedly connected to the bottom of the rotating ring 35. A conical cover 38 is fixed at the bottom of the feed cylinder 7. The conical cover 38 plays a role in limiting and guiding the polymer dry powder. The conical cover 38 is located in the dissolving tank 3. An inner buckle plate is fixed at the bottom edge of the dissolving tank 3 to prevent the dissolved solution from spilling out. The rotation of the umbrella-shaped disk 11 can drive the rotating ring 35 to rotate via the connecting rod 37. When the polymer dry powder is fed through the valve hole 32 and the discharge hole, the rotation of the rotating ring 35 drives the paddles 36 to disperse and scatter the falling polymer dry powder, making the polymer dry powder fall more evenly and dispersed, which facilitates the dissolution of the polymer dry powder with the umbrella-shaped water curtain.

[0036] In one embodiment of this application, preferably, a bent rod 39 is fixed on one of the dial plates 36, and a V-shaped spring piece 40 is fixed on the bent rod 39. The top of the spring piece 40 can extend into the corresponding valve hole 32. The rotation of the rotating ring 35 causes the V-shaped spring piece 40 to rotate around the blocking ring 31, so that the spring piece 40 knocks and vibrates at the valve hole 32 on the blocking ring 31, thereby facilitating material feeding, and the movement of the spring piece 40 prevents the valve hole 32 from being blocked.

[0037] In one embodiment of this application, preferably, a fixing rod 41 is fixed to the top of the feed cylinder 7, and a cover 42 is detachably connected to the top of the feed cylinder 7. The cover 42 has an opening for the water outlet pipe 17 to pass through. The fixing rod 41 can block the opening of the cover 42. Through the cooperation of the cover 42 and the fixing rod 41, the top of the feed cylinder 7 can be easily covered.

[0038] In the initial state of this invention, the water tank 5 is filled with water, and a certain amount of polymer dry powder is injected into the feed cylinder 7. The valve hole 32 on the barrier ring 31 is completely staggered with the corresponding discharge hole, thereby blocking the polymer dry powder. One solenoid valve 26 is open and the other solenoid valve 26 is closed.

[0039] In use, the present invention is achieved by starting the water pump 15, which draws water from the water tank 5 into the water injection pipe 8 through the inlet pipe 16 and the outlet pipe 17. The starting motor 33 drives the gear 34 to rotate at a certain angle, which in turn drives the internal gear ring 30 and the blocking ring 31 to rotate, so that the valve hole 32 completely overlaps with the corresponding discharge hole. The water flow in the water injection pipe 8 drives the turbine 28, the sleeve 29 and the umbrella-shaped disk 11 to rotate. The rotation of the umbrella-shaped disk 11 causes the inclined plate 12 to move the water flow, forming a rotating umbrella-shaped water curtain. The polymer dry powder is fed through multiple annularly arranged valve holes 32 and discharge holes at the bottom of the feed cylinder 7, so that the polymer dry powder is fed into the rotating umbrella-shaped water curtain in an annular manner, which mixes the dry powder with the water curtain, thereby dispersing the polymer dry powder and dissolving it in water. This avoids the polymer dry powder being poured directly into the water, thus preventing the preparation of polymer solutions with fish eyes or lumps.

[0040] Because the rotation of the umbrella-shaped disc 11 can drive the rotating ring 35 to rotate via the connecting rod 37, when the polymer dry powder is discharged through the valve hole 32 and the discharge hole, the rotation of the rotating ring 35 drives the paddle plate 36 to disperse and scatter the falling polymer dry powder, making the polymer dry powder fall more evenly and dispersed, which is conducive to the dissolution of polymer dry powder with the umbrella-shaped water curtain. The rotation of the rotating ring 35 causes the V-shaped spring 40 to rotate around the barrier ring 31, so that the spring 40 knocks and vibrates at the valve hole 32 on the barrier ring 31, thereby facilitating the discharge. And through the movement of the spring 40, the valve hole 32 is prevented from being blocked. The dissolved solution in the dissolving tank 3 enters the corresponding curing tank 6 through the opened solenoid valve 26 and the connecting pipe 9. When the polymer solution in the curing tank 6 reaches a certain amount, the solenoid valve 26 is closed and the corresponding motor 19 is started. Motor 19 can drive the connecting shaft 20 to rotate, thereby driving the stirring element 21 to stir the polymer solution in a certain amount of maturation tank 6. Then, another solenoid valve 26 is opened, allowing the solution dissolved in the dissolving tank 3 to enter another maturation tank 6. When the solution in the maturation tank 6 reaches a certain amount, the corresponding solenoid valve 26 is closed, and the corresponding motor 19 is started. Motor 19 can drive the connecting shaft 20 to rotate, thereby driving the stirring element 21 to rotate. The solution in the maturation tank 6 that has been stirred and maturated for a certain period of time can be discharged by opening the corresponding valve 25, so that the two maturation tanks 6 can alternately feed and mature, making it more convenient to use. When the water and polymer dry powder are used up, the device completes one process, the motor 33 starts, the barrier ring 31 is reset, and the water pump 15 is turned off.

[0041] In this process, when the solution in the maturation tank 6 reaches a certain amount and the vent in the maturation tank 6 is vented, the vent hole and the corresponding top hole are completely blocked. After the corresponding solenoid valve 26 is closed, the corresponding motor starts to drive the stirring piece 21 to rotate. When the solution in the maturation tank 6 is emptied, the corresponding motor 19 is turned off.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A polymer injection skid integrated device comprising a dissolving tank (3) disposed between a top frame (1) and a bottom frame (2), characterized in that, The top frame (1) is fixedly installed with uprights (4) at the four corners. The bottom ends of the four uprights (4) are fixedly installed with the four corners of the bottom frame (2). A water tank (5) is fixedly installed on the top frame (1). Two maturation boxes (6) are fixedly installed on the bottom frame (2). Steps are provided on opposite sides of the two maturation boxes (6). The steps of the two maturation boxes (6) are fixedly installed with the dissolving tank (3). A feed cylinder (7) is provided in the middle of the water tank (5). An annular feed trough is provided inside the feed cylinder (7). A water injection pipe (8) is fixed in the middle of the feed cylinder (7). The bottom of the feed trough is conical. Multiple discharge holes arranged in an annular array are opened at the bottom of the feed trough. The bottom of the feed cylinder (7) passes through the top frame (1) and is inserted into the dissolving tank (3). The two sides of the dissolving tank (3) are connected to the corresponding maturation boxes (6) through connecting pipes (9). The bottom of the water injection pipe (8) is fixedly connected to a constricted pipe (10), and a rotatable umbrella-shaped disk (11) is provided below the constricted pipe (10). Multiple inclined plates (12) arranged in a ring array are fixed on the umbrella-shaped disk (11), and an umbrella-shaped cover (13) is fixed at the bottom of the constricted pipe (10). There is a gap between the umbrella-shaped cover (13) and the umbrella-shaped disk (11), and the multiple inclined plates (12) are all located in the gap.

2. The polymer pigging skid-integrated unit of claim 1, wherein: The water tank (5) has a recess (14) on one side of its top. A water pump (15) is fixedly installed in the recess (14). A water inlet pipe (16) is installed at the inlet of the water pump (15), and a water outlet pipe (17) is installed at the outlet of the water pump (15). The water inlet pipe (16) is inserted into the water tank (5), and the free end of the water outlet pipe (17) is fixedly connected to the top of the water injection pipe (8).

3. The polymer injection skid-packaged integrated unit of claim 1, wherein: The bottom of the water tank (5) is provided with two upper recesses (18), and motors (19) are respectively provided in the two upper recesses (18). The motors (19) are fixedly installed with the top frame (1). The output end of the motors (19) is fixedly connected to a connecting shaft (20). The free ends of the two connecting shafts (20) are respectively inserted into the corresponding maturation boxes (6). A stirring component (21) is fixedly installed at one end of the connecting shaft (20) inserted into the corresponding maturation box (6).

4. The polymer injection skid-packaged integrated unit of claim 1, wherein: The water tank (5) has a water inlet hole at the top and a detachable cap (22) inside the water inlet hole. The maturation tank (6) has a top hole at the top and a rotatable top cover (23) at the top. The top cover (23) has an exhaust hole, which can be connected to the top hole. The bottoms of the two maturation tanks (6) are respectively fixedly connected to a discharge pipe (24), and a valve (25) is provided on the discharge pipe (24).

5. The polymer injection skid-packaged integrated unit of claim 1, wherein: A solenoid valve (26) is installed on the connecting pipe (9).

6. The polymer injection skid-packaged integrated unit of claim 1, wherein: A cylinder (27) is fixed in the middle of the bottom wall of the dissolving tank (3). The top of the cylinder (27) extends into the water injection pipe (8) and is rotatably connected to a turbine (28). A sleeve (29) is fixed at the bottom of the turbine (28). The surface of the sleeve (29) is fixedly connected to the umbrella-shaped disk (11).

7. The polymer injection skid-packaged integrated unit of claim 1, wherein: The bottom of the feed cylinder (7) is provided with a relief groove, and a rotatable internal gear ring (30) is provided in the relief groove. A blocking ring (31) is provided on the outside of the internal gear ring (30). Multiple valve holes (32) corresponding to the discharge holes are opened on the blocking ring (31). The valve holes (32) can overlap or intersect with the corresponding discharge holes. The bottom of the feed cylinder (7) is provided with an annular groove, and a motor (33) is fixedly installed in the annular groove. A rotatable gear (34) is provided in the relief groove. The gear (34) meshes with the internal gear ring (30). The output end of the motor (33) is fixedly installed at the center of the gear (34).

8. The polymer injection skid-packaged integrated unit of claim 7, wherein: The annular groove is provided with a rotatable rotating ring (35), and a plurality of paddles (36) arranged in a ring array are fixed on the rotating ring (35). The paddles (36) are located below the barrier ring (31). A connecting rod (37) is fixed at the edge of the umbrella-shaped disk (11). The free end of the connecting rod (37) is fixedly connected to the bottom of the rotating ring (35). A conical cover (38) is fixed at the bottom of the feed cylinder (7). The conical cover (38) is located inside the dissolving tank (3). An inner buckle plate is fixed at the bottom edge of the dissolving tank (3).

9. The polymer injection skid-packaged integrated unit of claim 8, wherein: One of the dials (36) is fixed with a bent rod (39), and a V-shaped spring (40) is fixed on the bent rod (39). The top of the spring (40) can extend into the corresponding valve hole (32).

10. The polymer injection skid-packaged integrated unit of claim 1, wherein: The top of the feed cylinder (7) is fixed with a fixing rod (41), and the top of the feed cylinder (7) is detachably connected with a cover (42). The cover (42) has an opening for the water outlet pipe (17) to pass through, and the fixing rod (41) can block the opening of the cover (42).

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