Hydraulic modular gas-liquid mixed transportation supercharging device

Abstract

The invention belongs to the technical field of oil-gas mixed transportation, and particularly relates to a hydraulic modular gas-liquid mixed transportation supercharging device. Comprising a mounting bottom frame, a plurality of hydraulic cylinders are fixedly connected to the mounting bottom frame, driving parts are slidably connected to the interiors of the hydraulic cylinders in a sealed mode, the interiors of the hydraulic cylinders are divided into two sets of working cavities and two driving cavities through the driving parts, and injection ports and liquid discharging ports are formed in the hydraulic cylinders; the working cavity of the hydraulic cylinder is fixedly connected with symmetrically-distributed connecting side plates, and the symmetrically-distributed connecting side plates are jointly and fixedly connected with a filtering plate. Mud and sand rushing into the working cavity are temporarily filtered and stored through the filter plate and the two adjacent connecting side plates, so that the mud and sand content of flowing oil in the working cavity is reduced, abrasion of the mud and sand to the inner wall of the working cavity is reduced, the requirement degree of the hydraulic cylinder for high-abrasion-resistance materials is reduced, and the service life of the hydraulic cylinder is prolonged. And the production cost of the device is reduced while the influence of mud and sand on the inner wall of the working cavity is reduced.

Description

Technical Field

[0001] This invention belongs to the field of oil and gas mixed transportation technology, specifically relating to a hydraulic modular gas-liquid mixed transportation booster device. Background Technology

[0002] The hydraulic gas-liquid mixed-transport booster unit is a crude oil transportation device used at oilfield wellheads. Compared to commonly used booster units such as screw pumps, compressors, and centrifugal pumps, it features high wear resistance, high output pressure, large volume, and suitability for transporting crude oil with high gas and sand content. The hydraulic gas-liquid mixed-transport booster unit uses hydraulic power to drive an internal piston to reciprocate within the working cavity. Combined with the inlet and outlet systems and a check valve assembly, this continuously changes the volume of the working cavity, thus achieving the reciprocating action of drawing in and discharging crude oil. However, during the crude oil extraction process, the composition and content of each component of the crude oil are constantly changing (i.e., the crude oil contains natural gas, oil fluid, wastewater, and mud). The sand content changes continuously with the progress of mining. In particular, crude oil with high sand content will cause severe wear to the inner wall of the working cavity. Therefore, the production materials of hydraulic gas-liquid mixed transportation booster units must always be designed according to the most severe working conditions. This design strategy causes the manufacturing cost of the unit to increase exponentially with the improvement of material performance. More importantly, because the sand content in crude oil is always dynamic in different oil wells and different mining stages (and its trend and numerical limit are different), not all working conditions require high-level wear resistance. This causes the performance of the unit to be out of sync with the actual needs, resulting in cost waste. Summary of the Invention

[0003] In order to overcome the shortcomings of existing devices, such as the mismatch between device performance and actual production needs, resulting in significant waste of production costs, this invention provides a hydraulic modular gas-liquid mixed transport booster device.

[0004] The technical solution is as follows: A hydraulic modular gas-liquid mixed transport and booster device includes a mounting base, on which several hydraulic cylinders are fixedly connected. A driving component is slidably connected within each hydraulic cylinder, dividing the hydraulic cylinder into two sets of working cavities and two driving cavities. Each set of working cavities in the hydraulic cylinder contains several working cavities. Each hydraulic cylinder has an injection port and a discharge port, corresponding one-to-one with the number of working cavities within it. Symmetrically distributed connecting side plates are fixedly connected to the side of each working cavity near the corresponding injection port. A filter plate is fixedly connected to the symmetrically distributed connecting side plates. An inclined guide filter is fixedly connected within the injection port. A connecting seal is fixedly connected to the filter plate within the working cavity of the hydraulic cylinder through which the driving component passes. A first sliding ring, slidably connected to the driving component, is fixedly connected within the connecting seal. An opening and closing component is provided within the working cavity of the hydraulic cylinder for blocking or discharging intercepted mud and sand according to the oil inlet and outlet states.

[0005] Further explanation: the opening and closing component includes a rotating door, which is rotatably connected to the side of the hydraulic cylinder near the drain port within the corresponding working cavity. The filter plate is rotatably connected to a drive door on the side near the corresponding injection port. The drive door is located on the extension line of the axis of the corresponding injection port. A connecting steel wire is fixedly connected between the drive door and the corresponding rotating door. The filter plate is guided to move by the connecting steel wire through a slip ring. The filter plate is fixedly connected to a sealing plate, a first sealing element, and a second sealing element. The sealing plate is in sealing contact with the corresponding drive door. Both the first sealing element and the second sealing element are made of elastic material and are fixedly connected to the corresponding drive door.

[0006] To further explain, the connecting side plate is made of flexible material, the filter plate is located on the moving path of the driving component, and there is a gap between the filter plate and the inner wall of the working cavity of the corresponding hydraulic cylinder.

[0007] To further explain, the filter plate is fixedly connected with spaced elastic plates near the adjacent connecting side plates. The elastic plates are used to push the adjacent connecting side plates outward from the filter plate, and the elastic plates are fixedly connected to the adjacent connecting side plates.

[0008] To further explain, a guide strip is fixed to the upper side of the filter plate where it does not contact the connecting side plate, which is used to prevent mud and sand from moving to the outer side of the corresponding filter plate.

[0009] To further explain, the angle between the filter plate and the axial section of the hydraulic cylinder is greater than 10° and less than 30°, and the filter plate is inclined from the side away from the corresponding drain port to the side closer to the corresponding drain port in the direction from top to bottom.

[0010] Further explanation: It also includes an auxiliary discharge mechanism that corresponds one-to-one with the number of filter plates. The auxiliary discharge mechanism is disposed on the filter plate and is used to actively discharge the mud and sand blocked by the filter plate to the corresponding drain port. The auxiliary discharge mechanism includes a rolling shaft, which is rotatably connected to the side of the filter plate away from the adjacent and symmetrically distributed connecting side plates. A first guide shaft is rotatably connected to the side of the filter plate near the rotating door, and a second guide shaft is rotatably connected to the side of the filter plate near the rolling shaft. A flexible strip is wound around the rolling shaft, the first guide shaft, and the second guide shaft. The flexible strip penetrates the corresponding filter plate near the corresponding rolling shaft. The flexible strip is a synchronous strip. Symmetrically distributed drive blades are fixed to the rolling shaft. A guide component for guiding oil to the drive blades is provided in the working cavity of the hydraulic cylinder.

[0011] Further explanation: the guiding component includes a fixed guide plate, which is fixedly connected to the side of the filter plate away from the adjacent and symmetrically distributed connecting side plates. A multi-stage elastic telescopic rod is fixedly connected to the working cavity inside the hydraulic cylinder near the corresponding drain port. A fixed plate is fixedly connected to the telescopic end of the multi-stage elastic telescopic rod. A flexible connector is fixedly connected between the fixed plate and the corresponding fixed guide plate. The fixed guide plate, the fixed plate, and the flexible connector are all located on the moving path of the driving component.

[0012] To further explain, the fixed guide plate has a notch in the middle of the side near the injection port, which is used to guide the oil to flow to the middle of the fixed guide plate.

[0013] To further explain, the working cavity of the hydraulic cylinder is provided with a receiving groove on the side near the injection port and the discharge port. A flexible skin is fixed to the hydraulic cylinder at the receiving groove. A second sliding ring is fixed to the flexible skin of the working cavity of the hydraulic cylinder that is penetrated by the driving component. The second sliding ring is in a sealed sliding connection with the driving component.

[0014] Compared with existing devices, the present invention has at least the following beneficial effects: The present invention temporarily filters and stores the mud and sand that flow into the working cavity through the filter plate and two adjacent connecting side plates, thereby reducing the mud and sand content of the oil flowing in the working cavity, reducing the wear of mud and sand on the inner wall of the working cavity, and thus reducing the demand for high wear-resistant materials for the hydraulic cylinder. While reducing the impact of mud and sand on the inner wall of the working cavity, the production cost of the device is also reduced.

[0015] This invention guides the oil through a fixed guide plate, a fixed plate, and a flexible connector, directing the oil to flow through the rolling shaft and drive fan blades towards the drain port. On the one hand, this facilitates the oil to pass through the filter plate again and flow towards the drain port, directly promoting the downward flow of mud and sand inside the filter plate. On the other hand, the oil drives the drive fan blades and flexible belt to rotate, and the flexible belt then uses friction to move the mud and sand downward, reducing the probability of mud and sand accumulating and getting stuck between the filter plate and the two connecting side plates.

[0016] This invention adds a flexible skin and a receiving groove to accommodate the mud and sand that are difficult to completely drain from the filter plate, thereby reducing the probability of the device needing to be shut down for maintenance without affecting the normal transport of oil. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional schematic diagram of the hydraulic cylinder of the present invention; Figure 3 This is a three-dimensional structural diagram of the connection between the side plate and the filter plate of the present invention; Figure 4 This is a cross-sectional schematic diagram of the fixing plate and the flexible connector of the present invention; Figure 5 This is a cross-sectional schematic diagram of the filter plate of the present invention; Figure 6 This is a three-dimensional structural diagram of the drive panel door and the second sealing element of the present invention; Figure 7 This is a three-dimensional structural diagram of the first sliding ring and the connecting seal of the present invention; Figure 8 This is a schematic diagram of the swing state of the drive panel door according to the present invention; Figure 9 This is a cross-sectional schematic diagram of the flexible strip of the present invention; Figure 10 This is a cross-sectional schematic diagram of the rolling shaft and flexible belt of the present invention.

[0018] In the above attached diagram: 1: Mounting base frame; 2: Hydraulic cylinder; 201: First cavity; 202: Second cavity; 203: Third cavity; 204: Fourth cavity; 205: Fifth cavity; 206: Sixth cavity; 3: Drive component; 301: Injection port; 302: Drain port; 4: Connecting side plate; 5: Filter plate; 51: Guide filter component; 52: First sliding ring; 521: Connecting seal; 53: Elastic plate; 54: Guide edge 6: Rotating door panel; 7: Drive door panel; 71: Connecting steel wire; 72: Sealing plate; 73: First sealing element; 74: Second sealing element; 8: Rolling shaft; 81: First guide shaft; 82: Second guide shaft; 9: Flexible strip; 10: Drive fan blade; 11: Fixed guide plate; 12: Multi-stage elastic telescopic rod; 13: Fixed plate; 14: Flexible connector; 15: Flexible skin; 151: Receiving groove; 152: Second sliding ring. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention. The illustrations in the specific embodiments are only schematic diagrams. For example, the filter holes in the schematic diagrams are only to show that they have a filtering function, and their shape and size do not reflect specific design values.

[0020] Example 1 discloses a hydraulic modular gas-liquid mixed transport booster device to solve the problem that the performance of existing devices does not match the actual production needs, resulting in wasted production costs.

[0021] A hydraulic modular gas-liquid mixed transport booster device, referenced Figures 1-7The system includes a mounting base 1, which houses the transportation system, drive system, and control terminal. Several hydraulic cylinders 2 are fixedly connected to the mounting base 1. Drive components 3 are slidably connected within each hydraulic cylinder 2, dividing the interior of each cylinder into two sets of working cavities and two drive cavities. Each set of working cavities contains two working cavities. (See reference...) Figure 2 In this design, the driving component 3 divides the hydraulic cylinder 2 into four working cavities (first cavity 201, second cavity 202, third cavity 203, and fourth cavity 204) and two driving cavities (fifth cavity 205 and sixth cavity 206). The driving cavities are connected to the driving system. The driving system controls the driving component 3 to move left and right reciprocally by alternately supplying hydraulic oil to the fifth cavity 205 and the sixth cavity 206. The hydraulic cylinder 2 is equipped with an injection port 301 and a discharge port 302, each corresponding to a specific number of working cavities. The injection port 301 is located on the upper side of the corresponding working cavity, and the discharge port 302 is located on the lower side of the corresponding working cavity. The working cavity is connected to the transport system through the injection port 301 and the discharge port 302, and a one-way valve group is provided at each connection point (the one-way valve group is an existing device and is not shown in detail in the figure). The one-way valve group at the connection between the transport system and the injection port 301 only allows oil to be injected into the corresponding working cavity through the injection port 301. The one-way valve group at the connection between the transport system and the discharge port 302 only allows oil to flow from the working cavity into the transport system through the discharge port 302. During the reciprocating movement of the drive component 3, the volume of the working cavity changes continuously, thereby continuously extracting oil from the well through the transport system and transporting the oil to the designated collection location through the transport system. Two symmetrically distributed connecting side plates 4 are fixed to one side of the working cavity near the corresponding injection port 301. The distance between the uppermost sides of the two symmetrical connecting side plates 4 is greater than the distance between their lowermost sides, which is used to promote the sliding of mud and sand between them towards the adjacent discharge port 302. A filter plate 5 is fixed to both symmetrical connecting side plates 4. The angle between the filter plate 5 and the axial tangent of the hydraulic cylinder 2 is greater than 10° and less than 30°. The filter plate 5 is inclined from the side away from the corresponding discharge port 302 to the side closer to the corresponding discharge port 302 in the downward direction, which is used to promote the downward sliding of mud and sand between the filter plate 5 and the two adjacent connecting side plates 4. An inclined guide filter element 51 is fixed inside the injection port 301. The upper part is fixed to the inner wall of the injection port 301. The lower part of the guide filter 51 protrudes from the injection port 301. The guide filter 51 gradually tilts towards the outside of the adjacent injection port 301 from top to bottom to guide part of the oil in advance, so that mud and sand can enter more easily between the adjacent filter plate 5 and the two adjacent connecting side plates 4. The filter plate 5 in the working cavity through which the drive component 3 passes is fixedly connected with a connecting seal 521. The connecting seal 521 is made of corrosion-resistant flexible rubber material. The connecting seal 521 is fixedly connected with a first sliding ring 52 that is slidably connected to the drive component 3. The working cavity is provided with an opening and closing component for blocking or discharging the intercepted mud and sand according to the oil inlet and outlet states. The drive system is electrically connected to the control terminal.

[0022] In the above scheme, the transportation system, drive system and hydraulic cylinder 2 are all modularly designed. Solenoid valves are installed at the connection points between the transportation system and drive system and hydraulic cylinder 2 to switch the working state of individual hydraulic cylinder 2. This facilitates the disassembly and maintenance of individual hydraulic cylinder 2 without affecting the normal production progress of the oilfield. This scheme temporarily filters and stores most of the mud and sand that flows into the working cavity through filter plate 5 and two adjacent connecting side plates 4, thereby reducing the mud and sand content of the oil flowing in the working cavity, reducing the wear of mud and sand on the inner wall of the working cavity, and thus reducing the demand for high wear-resistant materials for hydraulic cylinder 2. This reduces the impact of mud and sand on the inner wall of the working cavity while reducing the production cost of this device.

[0023] For further explanation, refer to Figures 4-8The opening and closing components include a rotating door 6, which is rotatably connected to the side of the hydraulic cylinder 2 near the corresponding drain port 302 in the corresponding working cavity. The rotating door 6 is used to block the lower side of the filter plate 5 and the two adjacent connecting side plates 4. A drive door 7 is rotatably connected to the upper side of the filter plate 5 near the corresponding injection port 301. The drive door 7 is provided with a through hole to facilitate the passage of oil. The drive door 7 is located on the extension line of the axis of the corresponding injection port 301 to facilitate the impact of oil on the drive door 7. Two connecting steel wires 71 are fixedly connected between the drive door 7 and the corresponding rotating door 6, which are symmetrically distributed front and rear. A sliding buckle (or a slip ring or other component with the same function) is provided to limit the movement direction of the connecting steel wire 71, so that the connecting steel wire 71 can slide along the surface of the corresponding filter plate 5. The filter plate 5 is fixedly connected to a first sealing element 73, a second sealing element 74, and sealing plates 72 symmetrically distributed front and rear. The sealing plates 72 are in sealing contact with the drive plate door 7, and are used to seal the gap between the second sealing element 74 and the sealing plates 72. The first sealing element 73 and the second sealing element 74 are both made of corrosion-resistant flexible rubber material, and are both fixedly connected to the drive plate door 7, so as to ensure that the drive plate door 7 is always in a relatively sealed state with the filter plate 5 during the rotation.

[0024] In the above scheme, the oil entering the working cavity impacts the drive plate door 7, causing the drive plate door 7 to close the rotating plate door 6 via the connecting steel wire 71. Thus, during the process of the oil entering the working cavity, the filter plate 5 collects and intercepts the mud and sand in the oil, thereby reducing the wear of the mud and sand on the inner wall of the working cavity. When the oil is discharged from the working cavity, the drive plate door 7 is not impacted by the oil in the direction of the corresponding injection port 301, so it no longer drags the rotating plate door 6 via the connecting steel wire 71. The rotating plate door 6 opens downward under the pressure of the mud and sand on its upper side, allowing the mud and sand to be slowly discharged out of the working cavity with the oil.

[0025] For further explanation, refer to Figures 4-8 The connecting side plate 4 is made of corrosion-resistant flexible rubber material and can be bent. There is a gap between the filter plate 5 and the inner wall of the corresponding working cavity, which is used to rotate the filter plate 5 to a vertical state, thereby reducing the proportion of the clearance volume in the device and increasing the effective stroke distance of the device in a single stroke. The filter plate 5 is fixed with spaced elastic plates 53 near the adjacent connecting side plate 4. The elastic plates 53 are fixed to the middle of the adjacent connecting side plate 4. The elastic plates 53 are used to push the adjacent connecting side plate 4 to the front and rear sides of the filter plate 5, reducing the probability of the filter plate 5 squeezing the adjacent connecting side plate 4. A guide strip 54 is fixed to the upper side of the filter plate 5 where it does not contact the connecting side plate 4. The guide strip 54 is provided with a guide arc surface on the side facing between the filter plate 5 and the adjacent connecting side plate 4, which is used to reduce the probability of mud and sand being washed to the upper side of the filter plate 5 by the oil.

[0026] In the above scheme, by making the connecting side plate 4 and the filter plate 5 fold towards the inner wall of the working cavity when squeezed by the driving component 3, the space occupied by the connecting side plate 4 and the filter plate 5 during the oil discharge process is reduced, thereby reducing the proportion of the clearance volume in the device. This allows the driving component 3 to draw and discharge more oil during a single movement, ensuring the working efficiency of the driving component 3.

[0027] The working principle of the above scheme is as follows: The staff first installs the device at the oil well and connects the injection port 301 to the oil wellhead through the transportation system, and connects the discharge port 302 to the unified oil storage place. After the staff has installed all the devices, they prepare to start the device.

[0028] When staff prepare to start the device, they first start the drive system via the control terminal. Figure 2 Taking the hydraulic cylinder 2 as an example, the drive system alternately injects hydraulic oil into the two working cavities, the fifth cavity 205 and the sixth cavity 206. To facilitate the description of the working principle of this device, the following description uses the injection of hydraulic oil into the sixth cavity 206 during operation as an example: After the hydraulic oil enters the sixth cavity 206, the extrusion drive 3 moves to the right, and the hydraulic oil in the fifth cavity 205 flows back into the drive system. During the movement of the drive 3, the volume of the first cavity 201 and the third cavity 203 is compressed, and the second cavity 202 and the fourth cavity 204 are expanded. The second cavity 202 and the fourth cavity 204 draw oil from the well through their internal injection port 301, the one-way valve group corresponding to the injection port 301, and the transport system. The first cavity 201 and the third cavity 203 discharge their internal oil to the transport system through their internal drain port 302, the one-way valve group corresponding to the drain port 302, and the transport system.

[0029] As the oil enters the corresponding working cavity (i.e., the second cavity 202 and the fourth cavity 204) through the injection port 301, some of the oil, carrying mud and sand, is guided by the guide filter element 51 and flows downwards towards the filter plate 5. Some oil passes through the guide filter element 51 and directly contacts the drive plate door 7. When the mud and sand come into contact with the filter plate 5, most of it is intercepted between the filter plate 5 and the two adjacent connecting side plates 4. The oil then passes through the filter plate 5 or enters the corresponding working cavity through the gap on the upper side of the filter plate 5. The guide strip 54 prevents the oil from flowing directly upwards. This reduces the probability of mud and sand moving to the outside of the filter plate 5 with the oil. Both the filter plate 5 and the drive plate door 7 are impacted by the oil and swing away from the injection port 301. The filter plate 5 straightens the connecting side plates 4 on both sides, the elastic plate 53 compresses and stores force, the drive plate door 7 pulls the connecting steel wire 71 to move upward, the first seal 73 and the second seal 74 stretch and deform to store force, the connecting steel wire 71 pulls the rotating plate door 6 to rotate upward, the rotating plate door 6 blocks the lower side of the filter plate 5, so that the mud and sand intercepted by the filter plate 5 stay between the filter plate 5 and the two adjacent connecting side plates 4.

[0030] When the oil in the working cavity is discharged outward through the drain port 302 (i.e., in the first cavity 201 and the third cavity 203), since the corresponding injection port 301 no longer receives oil, the filter plate 5 and the drive plate door 7 are no longer impacted by the oil in the direction of the injection port 301. The elastic plate 53 pushes the connecting side plates 4 on both sides to bend naturally outward from the filter plate 5. The drive plate door 7 no longer pulls the rotating plate door 6 through the connecting steel wire 71. The rotating plate door 6 naturally opens downward under the gravity of the mud and sand on it. Under the dragging action of the connecting steel wire 71 and the rotating plate door 6, and under the elastic action of the first seal 73 and the second seal 74 on it, the drive plate door 7 swings back to its original position. The mud and sand are gradually discharged outward from the drain port 302 under the drive of the oil flow on the lower side of the rotating plate door 6. When the drive component 3 interacts with the working cavity during the oil discharge process... When the filter plate 5 in the working cavity comes into contact, the filter plate 5 moves and swings together with the drive member 3 under the squeezing action of the drive member 3. The two adjacent connecting side plates 4 bulge and bend outwards towards the adjacent filter plate 5 until the filter plate 5 and the drive member 3 move to their limit (at this time, neither the filter plate 5 nor the drive plate door 7 will be completely in contact with the inner wall of the working cavity). The drive system stops injecting hydraulic oil into the sixth cavity 206 and instead injects hydraulic oil into the fifth cavity 205. The hydraulic oil in the sixth cavity 206 naturally flows back into the drive system. The working states of the first cavity 201 and the third cavity 203 are exchanged with the working states of the second cavity 202 and the fourth cavity 204. The filter plate 5 and the connecting side plate 4 in the first cavity 201 and the third cavity 203 gradually move under the impact of the hydraulic oil drawn from the injection port 301. Figure 3 The state in.

[0031] The first cavity 201 and the third cavity 203, along with the second cavity 202 and the fourth cavity 204, alternately inject hydraulic oil into the fifth cavity 205 and the sixth cavity 206 through the drive system, repeating the above working steps alternately to continuously extract crude oil from the oil well and move the crude oil to the designated location through the transportation system.

[0032] Example 2: Based on Example 1, this device further includes a feature that promotes the downward discharge of mud and sand intercepted by the filter plate 5, reducing the probability of mud and sand getting stuck between the filter plate 5 and the two connecting side plates 4.

[0033] For further explanation, refer to Figure 4 , Figure 5 , Figure 9 and Figure 10 It also includes auxiliary discharge mechanisms, the same number as filter plates 5, respectively disposed on the corresponding filter plates 5. These auxiliary discharge mechanisms actively discharge the mud and sand intercepted by the filter plates 5 to the corresponding discharge port 302. Each auxiliary discharge mechanism includes a rolling shaft 8, which is rotatably connected to the side of the corresponding filter plate 5 away from the adjacent and symmetrically distributed connecting side plates 4, and located on the lower side of the filter plate 5. A first guide shaft 81 is rotatably connected to the lower side of the filter plate 5, and a second guide shaft 82 is rotatably connected to the middle of the filter plate 5. The rolling shaft 8 and the first guide shaft 8... A flexible belt 9 is wound between the first guide shaft 81 and the second guide shaft 82. The flexible belt 9 is a synchronous belt. The rolling shaft 8 is provided with a protrusion that meshes with the flexible belt 9 to drive the flexible belt 9 to rotate synchronously. The surfaces of the first guide shaft 81 and the second guide shaft 82 are both smooth surfaces. The flexible belt 9 penetrates the corresponding filter plate 5 near the second guide shaft 82. When the connecting wire 71 pulls the rotating door 6 upward to close, the rotating door 6 and the flexible belt 9 come into contact and seal. The rolling shaft 8 is fixed with symmetrically distributed drive fan blades 10. Figure 9 For example, when the drive fan blade 10 is driven by the liquid flowing from top to bottom, it rotates clockwise (from a right to left perspective), which in turn causes the drive fan blade 10 to drive the flexible belt 9 to rotate clockwise (from a right to left perspective). The working cavity is also equipped with a guide component for guiding the oil to the drive fan blade 10.

[0034] For further explanation, refer to Figure 3 , Figure 4 and Figure 7The guiding component includes a fixed guide plate 11, which is fixed to the side of the filter plate 5 away from the adjacent and symmetrically distributed connecting side plates 4. Two symmetrically distributed multi-stage elastic telescopic rods 12 are fixedly connected to the working cavity inside the hydraulic cylinder 2 near the corresponding drain port 302. The telescopic ends of the two multi-stage elastic telescopic rods 12 are jointly fixed to a fixed plate 13. A flexible connector 14 is fixed between the fixed plate 13 and the corresponding fixed guide plate 11. The flexible connector 14 is inclined from bottom to top towards the side closest to the corresponding filter plate 5. The flexible connector 14 is made of corrosion-resistant flexible rubber. The fixed plate 13 and the flexible connector... There are gaps between 14 and the inner wall of the working cavity, which will not hinder the flow of oil at the edge of the working cavity. The fixed guide plate 11, the fixed plate 13 and the flexible connector 14 are all located on the moving path of the drive component 3. The middle of the upper side of the fixed guide plate 11 is provided with a notch. Therefore, the height of its front and rear sides is less than the height of the middle part of the fixed guide plate 11. The distance that the oil moves to the drain port 302 through the notch is less than the distance that it moves to the drain port 302 through other positions on the upper side of the fixed guide plate 11. This makes it easier for the oil in the working cavity to flow to the drain port 302 through the middle of the fixed guide plate 11.

[0035] In the above scheme, the path of the oil flowing from the working cavity to the drain port 302 is changed by fixing the guide plate 11, fixing plate 13 and flexible connector 14. The oil is guided to flow to the drain port 302 through the rolling shaft 8 and drive fan blade 10. On the one hand, it is convenient for the oil to pass through the filter plate 5 again and flow to the drain port 302, promoting the downward flow of mud and sand in the filter plate 5. On the other hand, the oil drives the drive fan blade 10, rolling shaft 8 and flexible belt 9 to rotate, so that the flexible belt 9 drives the mud and sand intercepted by the filter plate 5 to move downward, reducing the probability of mud and sand accumulating and getting stuck between the filter plate 5 and the two connecting side plates 4.

[0036] The working principle of the above scheme is as follows: When the oil in the working cavity is discharged to the drain port 302, it is... Figure 4Taking the middle component as an example: the oil in the middle of the working cavity is guided by the fixed guide plate 11, the fixed plate 13 and the flexible connector 14 to flow towards the notch in the middle of the fixed guide plate 11, and after passing the fixed guide plate 11, it flows towards the drain port 302. At this time, part of the oil directly passes through the filter plate 5 and flows downward after passing through the rotating plate door 6. This part of the oil directly pushes some mud and sand through the rotating plate door 6 and flows out to the drain port 302. Another part of the oil flows downward after passing through the filter plate 5 and after passing through the rotating plate door 6, it flows out to the drain port 302. When this part of the oil passes through the drive fan blade 10, it drives the drive fan blade 10 and the rolling shaft 8 to rotate, thereby causing the flexible belt 9 to rotate clockwise (from the front to the back view). During the rotation of the flexible belt 9, the friction will promote the mud and sand stuck between the filter plate 5 and the two connecting side plates 4 to move slowly downward, thereby reducing the probability of mud and sand getting stuck between the filter plate 5 and the two connecting side plates 4.

[0037] As the drive component 3 squeezes the working cavity and approaches the filter plate 5, it first contacts the fixed plate 13 and squeezes the fixed plate 13 to move to the right together. The multi-stage elastic telescopic rod 12 compresses and stores force. Then, the drive component 3 contacts the fixed guide plate 11, squeezing and driving the fixed guide plate 11 and the filter plate 5 to swing to the right together. At this time, the oil on the upper side of the working cavity flows downward through the fixed guide plate 11, the fixed plate 13 and the right side of the flexible connector 14. Therefore, this part of the oil will still flow downward through the drive fan blade 10, driving the drive fan blade 10, the rolling shaft 8 and As the flexible belt 9 rotates, the filter plate 5 drives the drive fan blade 10, the rolling shaft 8, and the flexible belt 9 to swing together, thereby increasing the probability of the flexible belt 9 contacting the stuck mud and sand, and promoting the smooth discharge of the mud and sand collected by the filter plate 5. This continues until the drive component 3 moves to the left, and the corresponding injection port 301 re-injects oil into the working cavity. Under the impact of the oil sprayed from the injection port 301, the filter plate 5 drives the drive fan blade 10, the rolling shaft 8, the flexible belt 9, and the fixed guide plate 11 to swing and reset. The fixed plate 13 moves to the left and resets under the elastic force of the multi-stage elastic telescopic rod 12.

[0038] Example 3: Based on Example 2, this device also has the function of accommodating stuck mud and sand, reducing the risk of the device getting stuck and damaged.

[0039] For further explanation, refer to Figure 3 , Figure 4 and Figure 7 A receiving groove 151 is provided on the side of the working cavity near the injection port 301 and the drain port 302. A flexible skin 15 is fixedly connected to the hydraulic cylinder 2 at the receiving groove 151. The flexible skin 15 is made of flexible corrosion-resistant rubber. A second sliding ring 152 is fixedly connected to the flexible skin 15 of the working cavity penetrated by the drive component 3. The second sliding ring 152 is in a sealed sliding connection with the drive component 3.

[0040] In the above scheme, when the mud and sand stuck between the filter plate 5 and the two connecting side plates 4 are insufficient to prevent the drive component 3 from moving to the end of its stroke, the flexible skin 15 does not deform significantly, and it will promote the contact between the mud and sand in contact with it and the flexible belt 9 through its own elasticity, without affecting the working efficiency of the flexible belt 9. However, when a lot of mud and sand are stuck between the filter plate 5 and the two connecting side plates 4, and the flexible belt 9 has difficulty driving this part of the mud and sand to move downward smoothly, causing this part of the mud and sand to prevent the drive component 3 from moving to the limit position, then the drive component 3 will squeeze the filter plate 5. During the oscillation process, the filter plate 5 is squeezed into the flexible skin 15 by the mud and sand, thus reducing the obstruction of the drive component 3 by the stuck mud and sand, and reducing the probability of the device needing to be shut down for maintenance. This mud and sand needs to be removed and cleaned by the staff when the device is shut down for maintenance. Therefore, even if some mud and sand are stuck between the filter plate 5 and the two connecting side plates 4, it will not affect the device from completing the oil delivery task, reducing the probability of unnecessary economic losses caused by unexpected shutdown for maintenance.

[0041] It should be understood that the above description is for illustrative purposes only and is not intended to limit the invention. Those skilled in the art will understand that variations of the invention will be included within the scope of protection claimed herein.

Claims

1. A hydraulic modular gas-liquid mixed transport booster device, comprising a mounting base (1), wherein a plurality of hydraulic cylinders (2) are fixedly connected to the mounting base (1), and a drive component (3) is slidably connected inside the hydraulic cylinders (2), the drive component (3) dividing the inside of the hydraulic cylinders (2) into two sets of working cavities and two drive cavities, each set of the working cavities of the hydraulic cylinders (2) comprising a plurality of working cavities, and the hydraulic cylinders (2) being provided with an injection port (301) and a discharge port (302) corresponding one-to-one with the number of the working cavities inside, characterized in that: The working cavity of the hydraulic cylinder (2) is fixed with symmetrically distributed connecting side plates (4) on the side near the corresponding injection port (301). The symmetrically distributed connecting side plates (4) are fixed with a filter plate (5). An inclined guide filter (51) is fixed in the injection port (301). The filter plate (5) in the working cavity of the hydraulic cylinder (2) through which the drive member (3) passes is fixed with a connecting seal (521). A first sliding ring (52) is fixed in the connecting seal (521) and is slidably connected to the drive member (3). The working cavity of the hydraulic cylinder (2) is provided with an opening and closing component for blocking or discharging the intercepted mud and sand according to the oil inlet and oil outlet states.

2. The hydraulic modular gas-liquid mixed transport booster device according to claim 1, characterized in that: The opening and closing components include a rotating door (6), which is rotatably connected to the side of the hydraulic cylinder (2) near the drain port (302) in the corresponding working cavity. The filter plate (5) is rotatably connected to a drive door (7) near the side of the corresponding injection port (301). The drive door (7) is located on the extension line of the axis of the corresponding injection port (301). A connecting wire (71) is fixed between the drive door (7) and the corresponding rotating door (6). The filter plate (5) guides the connecting wire (71) to move through a slip ring. The filter plate (5) is fixedly connected to a sealing plate (72), a first sealing element (73), and a second sealing element (74). The sealing plate (72) is in sealing contact with the corresponding drive door (7). The first sealing element (73) and the second sealing element (74) are both made of elastic material and are fixedly connected to the corresponding drive door (7).

3. The hydraulic modular gas-liquid mixed transport and booster device according to claim 2, characterized in that: The connecting side plate (4) is made of flexible material, the filter plate (5) is located on the moving path of the driving component (3), and there is a gap between the filter plate (5) and the inner wall of the working cavity of the corresponding hydraulic cylinder (2).

4. The hydraulic modular gas-liquid mixed transport booster device according to claim 3, characterized in that: The filter plate (5) has a spaced elastic plate (53) fixedly attached near the adjacent connecting side plate (4). The elastic plate (53) is used to push the adjacent connecting side plate (4) outward from the filter plate (5). The elastic plate (53) is fixedly attached to the adjacent connecting side plate (4).

5. A hydraulic modular gas-liquid mixed transport booster device according to claim 4, characterized in that: A guide strip (54) is fixed to the upper side of the filter plate (5) where it does not contact the connecting side plate (4) to prevent mud and sand from moving to the outside of the corresponding filter plate (5).

6. A hydraulic modular gas-liquid mixed transport and booster device according to claim 5, characterized in that: The angle between the filter plate (5) and the axial section of the hydraulic cylinder (2) is greater than 10° and less than 30°, and the filter plate (5) is inclined from the side away from the corresponding drain port (302) to the side closer to the corresponding drain port (302) in the direction from top to bottom.

7. A hydraulic modular gas-liquid mixed transport booster device according to claim 6, characterized in that: It also includes auxiliary discharge mechanisms that are the same number as and correspond one-to-one with the filter plates (5). The auxiliary discharge mechanisms are disposed on the filter plates (5) and are used to actively discharge the mud and sand blocked by the filter plates (5) to the corresponding drain port (302). The auxiliary discharge mechanism includes a rolling shaft (8), which is rotatably connected to the side of the filter plate (5) away from the adjacent and symmetrically distributed connecting side plates (4). The side of the filter plate (5) near the rotating door (6) is rotatably connected to a first guide shaft (81). A second guide shaft (82) is rotatably connected to the side of the filter plate (5) near the rolling shaft (8). A flexible strip (9) is wound around the rolling shaft (8), the first guide shaft (81) and the second guide shaft (82). The flexible strip (9) penetrates the corresponding filter plate (5) near the corresponding rolling shaft (8). The flexible strip (9) is a synchronous strip. The rolling shaft (8) is fixed with symmetrically distributed drive blades (10). A guide component for guiding oil to the drive blades (10) is provided in the working cavity of the hydraulic cylinder (2).

8. A hydraulic modular gas-liquid mixed transport booster device according to claim 7, characterized in that: The guiding component includes a fixed guide plate (11), which is fixed to the side of the filter plate (5) away from the adjacent and symmetrically distributed connecting side plates (4). A multi-stage elastic telescopic rod (12) is fixed to the working cavity inside the hydraulic cylinder (2) near the corresponding drain port (302). A fixed plate (13) is fixed to the telescopic end of the multi-stage elastic telescopic rod (12). A flexible connector (14) is fixed between the fixed plate (13) and the corresponding fixed guide plate (11). The fixed guide plate (11), the fixed plate (13) and the flexible connector (14) are all located on the moving path of the driving component (3).

9. A hydraulic modular gas-liquid mixed transport and booster device according to claim 8, characterized in that: The fixed guide plate (11) has a notch in the middle of the side near the injection port (301) to guide the oil to flow to the middle of the fixed guide plate (11).

10. A hydraulic modular gas-liquid mixed transport and booster device according to claim 8, characterized in that: The working cavity of the hydraulic cylinder (2) is provided with a receiving groove (151) on the side near the injection port (301) and the discharge port (302). A flexible skin (15) is fixedly connected to the hydraulic cylinder (2) at the receiving groove (151). A second sliding ring (152) is fixedly connected to the flexible skin (15) of the working cavity of the hydraulic cylinder (2) that is penetrated by the driving member (3). The second sliding ring (152) is in a sealed sliding connection with the driving member (3).

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