Pipeline assembly and fracturing fluid conveying system

Abstract

The utility model provides a pipeline assembly and a fracturing fluid conveying system, and relates to the technical field of fracturing fluid conveying, the pipeline assembly comprises a first pipeline, a first valve and a pressurization assembly, the first pipeline is provided with a feed port, a discharge port and a pressurization port; the first valve is connected with the first pipeline and is used for opening and closing the pressurizing opening; the pressurizing assembly is connected with the end, away from the first pipeline, of the first valve, and the pressurizing assembly can generate thrust on materials in the first pipeline so that the blocked materials can be discharged out of the discharging port. The anti-blocking device can generate thrust to materials blocked in the pipeline so as to discharge the materials out of the pipeline, blockage clearing is convenient, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fracturing fluid conveying technical field especially relates to a pipeline assembly and fracturing fluid conveying system. BACKGROUND

[0002] Fracturing fluid refers to the chemical system formed by a plurality of additives according to certain proportion, and its main function is to transmit high pressure formed by ground equipment to stratum, so as to make stratum break and form crack and support crack surface, thereby forming stable productivity channel. However, during the output of fracturing fluid from mixing equipment to pumping device, the conveying pipeline between the two will form chemical deposition after long time use, so that blockage is easily caused due to the viscosity of fracturing fluid.

[0003] However, when the conveying pipeline in the related art is blocked, the conveying pipeline usually needs to be first detached from the mixing equipment and the pumping device, and then cleaning treatment is carried out, which is time-consuming and laborious and affects the fracturing operation efficiency. UTILITARY MODEL

[0004] The utility model aims to at least solve one of the technical problems in the related art to some extent.

[0005] Therefore, one of the embodiments of the utility model provides a pipeline assembly, which can generate thrust on the blocked material in the pipeline to discharge it from the pipeline, so that the blockage is convenient to clear, time and labor are saved.

[0006] Another embodiment of the utility model provides a fracturing fluid conveying system.

[0007] According to the pipeline assembly of the utility model embodiment, when the first pipeline is blocked, the first valve can be opened to make the pressurizing assembly communicate with the pressurizing port, and the feeding port is closed at the same time, the pressurizing assembly pressurizes in the first pipeline through the pressurizing port to generate thrust on the blocked material in the first pipeline, so that the blocked material can be discharged from the discharging port, thereby realizing the blockage clearing operation of the first pipeline. This process does not need to detach the first pipeline from the conveying system, that is, the pipeline can be directly cleared and blocked in the conveying system, the pipeline dismounting process is omitted, the labor cost is saved, and compared with the related art, the utility model can generate thrust on the blocked material in the pipeline to discharge it from the pipeline, so that the blockage is convenient to clear, time and labor are saved.

[0008] According to the pipeline assembly of the utility model embodiment, when the first pipeline is blocked, the first valve can be opened to make the pressurizing assembly communicate with the pressurizing port, and the feeding port is closed at the same time, the pressurizing assembly pressurizes in the first pipeline through the pressurizing port to generate thrust on the blocked material in the first pipeline, so that the blocked material can be discharged from the discharging port, thereby realizing the blockage clearing operation of the first pipeline. This process does not need to detach the first pipeline from the conveying system, that is, the pipeline can be directly cleared and blocked in the conveying system, the pipeline dismounting process is omitted, the labor cost is saved, and compared with the related art, the utility model can generate thrust on the blocked material in the pipeline to discharge it from the pipeline, so that the blockage is convenient to clear, time and labor are saved.

[0009] In some embodiments, the supercharging assembly comprises an air inlet cylinder and a push block.

[0010] The air inlet cylinder is connected to the end of the first valve away from the first pipeline, and has a receiving cavity and a first air inlet hole communicating with the receiving cavity, the receiving cavity extending along the axial direction of the air inlet cylinder.

[0011] The push block is slidingly fitted in the receiving cavity and has an air inlet position and a supercharging position, in the air inlet position, the push block, the first air inlet hole and the first valve are arranged in sequence along the axial direction of the air inlet cylinder, when the push block is switched from the air inlet position to the supercharging position, the push block can slide towards the first valve to compress the air in the receiving cavity, and the push block is located between the first air inlet hole and the first valve in the supercharging position.

[0012] In some embodiments, the supercharging assembly further comprises a pusher, the mounting end of the pusher is connected to the end of the air inlet cylinder away from the first valve, and the telescopic end of the pusher is drivingly connected to the push block to push and pull the push block along the axial direction of the air inlet cylinder.

[0013] In some embodiments, the supercharging assembly further comprises a first sealing member, the first sealing member is clamped between the outer circumferential surface of the push block and the inner circumferential surface of the air inlet cylinder.

[0014] In some embodiments, the pipeline assembly further comprises an anti-backflow assembly, the anti-backflow assembly is arranged in the receiving cavity and located between the first air inlet hole and the first valve along the axial direction of the air inlet cylinder, and the anti-backflow assembly is used to prevent the compressed air entering the first pipeline from flowing back to the receiving cavity.

[0015] In some embodiments, the anti-backflow assembly comprises a partition plate and a sealing plate.

[0016] The partition plate is arranged in the receiving cavity and divides the receiving cavity into a first cavity and a second cavity along the axial direction of the air inlet cylinder, the push block is located in the first cavity, the second cavity is closer to the first valve than the first cavity, and the partition plate is provided with a second air inlet hole communicating the first cavity and the second cavity.

[0017] The sealing plate is movably connected to the partition plate and has a first position opening the second air inlet hole and a second position covering the second air inlet hole, when the push block is switched from the supercharging position to the air inlet position, the sealing plate can move from the first position to the second position relative to the partition plate.

[0018] In some embodiments, the anti-backflow assembly further comprises a second sealing member arranged on a side of the partition plate facing the sealing plate, and the sealing plate abuts against the second sealing member in the second position.

[0019] The second sealing member is one of a sealing ring and a sealing sheet.

[0020] In some embodiments, the sealing plate is arranged on a side of the partition plate adjacent to the first valve, an upper end of the sealing plate is rotatably connected to the partition plate, and the sealing plate is capable of rotating to the second position under gravity when the pressure in the first cavity is lower than the pressure in the second cavity.

[0021] In some embodiments, the anti-backflow assembly further comprises an elastic member arranged between the partition plate and the sealing plate and capable of pressing the sealing plate towards the second position.

[0022] In some embodiments, the pipeline assembly further comprises a second valve installed at the feeding port and used for opening and closing the feeding port.

[0023] In some embodiments, the pipeline assembly further comprises a second pipeline in communication with the feeding port, and an end of the second pipeline away from the feeding port is connected to the second valve.

[0024] According to the fracturing fluid conveying system provided in the embodiments of the present application, the pipeline assembly is designed to have a booster assembly structure, the pipeline assembly can be pushed out without being disassembled from the mixing device and the pumping device, the fracturing fluid blocked in the first pipeline can be pushed out by the booster assembly to increase the pressure in the first pipeline, and thus the pipeline assembly can be cleaned and unblocked, which is convenient to operate and saves time and effort, and thus the pipeline unblocking efficiency of the fracturing fluid conveying system using the pipeline assembly is high, and the fracturing operation efficiency is ensured.

[0025] According to the fracturing fluid conveying system provided in the embodiments of the present application, the pipeline assembly is designed to have a booster assembly structure, the pipeline assembly can be pushed out without being disassembled from the mixing device and the pumping device, the fracturing fluid blocked in the first pipeline can be pushed out by the booster assembly to increase the pressure in the first pipeline, and thus the pipeline assembly can be cleaned and unblocked, which is convenient to operate and saves time and effort, and thus the pipeline unblocking efficiency of the fracturing fluid conveying system using the pipeline assembly is high, and the fracturing operation efficiency is ensured.

[0026] In some embodiments, the pipeline assembly further comprises a third pipeline in communication with the discharge port of the mixing device, and an end of the third pipeline away from the discharge port of the mixing device is connected to an end of the second valve away from the second pipeline.

[0027] Additional aspects and advantages of the present application will be given in part in the following description, and become apparent from the following description, or be learned by the practice of the present application. Attached Figure Description

[0028] Figure 1 This is a perspective view of a pipe assembly according to an embodiment of the present utility model.

[0029] Figure 2 This is a schematic diagram of the connection structure of the pusher and push block in the pipe assembly according to an embodiment of the present utility model.

[0030] Figure 3 This is a schematic diagram of the pusher block in the pipe assembly according to an embodiment of the present utility model.

[0031] Figure 4 This is a front view of a pipe assembly according to an embodiment of the present utility model.

[0032] Figure 5 yes Figure 4 A magnified schematic diagram of a portion of the structure.

[0033] Figure 6 This is a schematic diagram of the connection structure of the first pipe, the pressurizing component, and the anti-backflow component in the pipe assembly according to an embodiment of the present utility model (the sealing plate is not shown in the figure).

[0034] Figure label:

[0035] 1. First pipe; 11. Inlet; 12. Outlet; 13. Pressure booster port;

[0036] 2. First valve;

[0037] 3. Boosting assembly; 31. Air inlet cylinder; 311. First air inlet; 32. Push block; 321. Receiving groove; 33. Pusher; 34. First seal;

[0038] 4. Anti-backflow assembly; 41. Baffle plate; 411. Second air inlet; 412. Hinge seat; 42. Sealing plate; 421. Hinge shaft; 43. Second seal; 44. Elastic element;

[0039] 5. Second valve;

[0040] 6. Second pipeline;

[0041] 7. Third pipeline. Detailed Implementation

[0042] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0043] like Figure 1The utility model discloses a pipeline assembly, including first pipeline 1, first valve 2 and booster assembly 3, first pipeline 1 is equipped with feed inlet 11, discharge outlet 12 and booster port 13, first valve 2 is connected with first pipeline 1 and is used for opening and closing booster port 13, the one end of booster assembly 3 is connected with the first valve 2 and deviates from first pipeline 1, and booster assembly 3 can produce the thrust to the material in first pipeline 1 to make the material of blockage discharge discharge outlet 12.

[0044] According to the pipeline assembly of the utility model embodiment, when the first pipeline 1 is blocked, the first valve 2 can be opened to make the booster assembly 3 communicate with the booster port 13, and the feed inlet 11 is closed at the same time, the booster assembly 3 pressurizes in the first pipeline 1 through the booster port 13, to form the thrust to the blocked material in the first pipeline 1, so that the blocked material can be discharged from the discharge outlet 12, thereby realizing the unblocking operation of the first pipeline 1, and the first pipeline 1 does not need to be removed from the conveying system, that is, the pipeline can be directly unblocked in the conveying system, and the pipeline dismounting process is omitted, so that the manpower cost is saved, and compared with the related art, the utility model can produce the thrust to the blocked material in the pipeline to discharge it, so that the unblocking is convenient, time-saving and labor-saving.

[0045] In addition, after completing the unblocking operation on the first pipeline 1, the first valve 2 is closed, and the feed inlet 11 is opened to make the material continue to convey in the first pipeline 1.

[0046] Specifically, one of the two openings opposite in the extension direction of the first pipeline 1 can be the discharge outlet 12, and the other can be the booster port 13, and the peripheral wall surface of the first pipeline 1 can be provided with the feed inlet 11, and the feed inlet 11 is arranged adjacent to the booster port 13. The first valve 2 and the first pipeline 1 can be detachably connected (such as connected through a flange plate therebetween), and the first valve 2 and the booster assembly 3 can also be detachably connected (such as connected through a flange plate therebetween), so as to facilitate the dismounting and maintenance of the first pipeline 1, the first valve 2 and the booster assembly 3 in the later period, and when one of the two connected parts is damaged and fails, only the corresponding damaged part needs to be replaced to realize the normal work of the pipeline assembly, without scrapping the entire pipeline assembly, further effectively reducing the maintenance cost of the pipeline assembly. Of course, in the foregoing scheme, only the first valve 2 and the first pipeline 1 can be detachably connected, or only the first valve 2 and the booster assembly 3 can be detachably connected.

[0047] It should be noted that the "material" conveyed by the pipeline assembly can not be limited to fracturing fluid, and other materials suitable for conveying by the pipeline assembly can also be used, which is not limited herein, and the utility model will be described below taking the fracturing fluid as an example.

[0048] For example, Figure 1 And Figure 2As shown, in some embodiments, the pressurizing assembly 3 comprises an air inlet cylinder 31 and a push block 32.

[0049] The air inlet cylinder 31 is connected to the end of the first valve 2 away from the first pipeline 1, and has a containing cavity and is provided with a first air inlet hole 311 communicating with the containing cavity, the first air inlet hole 311 being used for filling the containing cavity with air, the containing cavity extending along the axial direction of the air inlet cylinder 31.

[0050] The push block 32 is slidingly fitted in the containing cavity and has an air inlet position and a pressurizing position, at the air inlet position, the push block 32, the first air inlet hole 311 and the first valve 2 are arranged in sequence along the axial direction of the air inlet cylinder 31, and when the push block 32 is switched from the air inlet position to the pressurizing position, the push block 32 can slide towards the first valve 2 to compress the air in the containing cavity, and the push block 32 is located between the first air inlet hole 311 and the first valve 2 at the pressurizing position.

[0051] It can be understood that, in actual use, when the first pipeline 1 is blocked, the first valve 2 can be opened, the feed port 11 can be closed, the push block 32 can be pushed to move towards the first valve 2 to compress the air in the containing cavity, at this time, the push block 32 is located at the pressurizing position, the compressed air can generate a pushing force on the fracturing fluid blocked in the first pipeline 1, so that the fracturing fluid can move towards the discharge port 12 and gradually separate from the first pipeline 1, after the push block 32 completes one push-out action, the first valve 2 is closed, and then the push block 32 is controlled to move away from the first valve 2 to the air inlet position, because the first air inlet hole 311 is located between the first valve 2 and the push block 32, the containing cavity will be filled with air again, then the push block 32 is controlled to move towards the first valve 2 again and pass through the first air inlet hole 311, the first valve 2 is opened, and the foregoing operation is repeated to inject compressed air into the first pipeline 1 multiple times, so that the blocked fracturing fluid continuously moves towards the discharge port 12 until it completely separates from the first pipeline 1.

[0052] Specifically, the inner contour line of the cross section of the air inlet cylinder 31 can be circular, and correspondingly, the outer contour line of the cross section of the push block 32 is also circular, the cross section being orthogonal to the axial direction of the air inlet cylinder 31, the circular structure design can reduce the difficulty of pushing the push block 32 to slide in the containing cavity, and to a certain extent, reduce the pressure loss of the compressed air during the sliding of the push block 32. The first air inlet hole 311 can be arranged on the peripheral wall surface of the air inlet cylinder 31, and the specific specifications and number thereof can be designed according to the air inlet efficiency requirement of the air inlet cylinder 31, which will not be specifically expanded here. The first air inlet hole 311 can be arranged away from the first valve 2 to ensure that the pressure of the compressed air formed in the containing cavity at a time can be greater than the pressure of the external environment of the first pipeline 1. The push block 32 can slide in the containing cavity along the axial direction of the air inlet cylinder 31.

[0053] As Figure 1 and Figure 2As shown, in some embodiments, the pressurizing assembly 3 further comprises a pusher 33, a mounting end of the pusher 33 being connected to an end of the air cylinder 31 away from the first valve 2, and a telescopic end of the pusher 33 being in transmission connection with the push block 32 to push and pull the push block 32 along the axial direction of the air cylinder 31, so that the push block 32 is driven by the pusher 33 to slide in the accommodating cavity, further improving the automation degree of the pipeline assembly and ensuring the plugging and unblocking efficiency thereof.

[0054] Specifically, the pusher 33 can not be limited to a telescopic cylinder, and other mechanisms capable of realizing reciprocating linear motion can also be used, which are not limited herein. The telescopic cylinder can be one of an electric cylinder, a hydraulic cylinder, a pneumatic cylinder and an oil cylinder.

[0055] For example, as shown in the figure, the cylinder body of the telescopic cylinder can be connected to an end of the air cylinder 31 away from the first valve 2, and the piston rod of the telescopic cylinder can be connected to a side of the push block 32 away from the first valve 2.

[0056] As shown, Figures 1 to 3 in some embodiments, the pressurizing assembly 3 further comprises a first sealing member 34, which is clamped between the outer peripheral surface of the push block 32 and the inner peripheral surface of the air cylinder 31.

[0057] It can be understood that, due to the sealing property of the first sealing member 34, compressed air can be formed between the plugging fracturing fluid in the first pipeline 1 and the side of the push block 32 adjacent to the first valve 2 in the accommodating cavity.

[0058] Specifically, the first sealing member 34 can be an O-shaped sealing ring. The outer peripheral surface of the push block 32 can be coaxially provided with a receiving groove 321, and the first sealing member 34 can be fitted in the receiving groove 321. The outer peripheral surface of the first sealing member 34 can abut against the inner peripheral surface of the air cylinder 31.

[0059] As shown, Figure 4 in some embodiments, the pipeline assembly further comprises an anti-backflow assembly 4, which is arranged in the accommodating cavity and located between the first air inlet hole 311 and the first valve 2 in the axial direction of the air cylinder 31. The anti-backflow assembly 4 is used to prevent the compressed air entering the first pipeline 1 from flowing back to the accommodating cavity.

[0060] It can be understood that, by using the anti-backflow assembly 4, during the switching process of the push block 32 from the pressurizing position to the air inlet position, i.e. when the push block 32 moves away from the first valve 2, the first valve 2 does not need to be closed, and the anti-backflow assembly 4 is used to prevent the compressed air entering the first pipeline 1 from flowing back, thereby effectively avoiding the frequent opening and closing of the first valve 2, improving the unblocking efficiency of the pipeline assembly and ensuring the service life of the first valve 2.

[0061] Specifically, the anti-backflow assembly 4 can be arranged adjacent to the first valve 2 to ensure the anti-backflow effect of the compressed air.

[0062] like Figures 4 to 6 As shown, in some embodiments, the anti-backflow assembly 4 includes a partition 41 and a sealing plate 42.

[0063] The partition 41 is located in the receiving cavity and divides the receiving cavity into a first cavity and a second cavity in the axial direction of the air inlet cylinder 31. The push block 32 is located in the first cavity. The second cavity is closer to the first valve 2 than the first cavity. The partition 41 is provided with a second air inlet 411 that connects the first cavity and the second cavity.

[0064] The sealing plate 42 is disposed in the receiving cavity and is movably connected to the partition 41. The sealing plate 42 has a first position for opening the second air inlet 411 and a second position for sealing the second air inlet 411. When the push block 32 switches from the pressurization position to the air inlet position, the sealing plate 42 can move relative to the partition 41 from the first position to the second position.

[0065] Understandably, with the above structure, when the pusher 32 switches from the pressurization position to the air intake position, the sealing plate 42 can move relative to the partition 41 from the first position to the second position to block the second air intake hole 411, thereby effectively preventing the compressed air entering the first delivery pipe from returning to the air intake cylinder 31.

[0066] In addition, when the pusher block 32 switches from the air intake position to the pressurization position, the sealing plate 42 can also move relative to the partition plate 41 from the second position to the first position to open the second air intake hole 411, so that compressed air can enter the first pipe 1 to push out the blocked fracturing fluid.

[0067] Specifically, the baffle 41 can be a circular baffle. The outer peripheral surface of the baffle 41 can be connected to the inner peripheral surface of the air intake cylinder 31. A second air intake hole 411 can be opened at the middle position of the baffle 41.

[0068] like Figures 4 to 6 As shown, in some embodiments, the anti-backflow assembly 4 further includes a second seal 43, which is disposed on the side of the partition 41 facing the sealing plate 42. The sealing plate 42 abuts against the second seal 43 at a second position to ensure the sealing between the sealing plate 42 and the partition 41.

[0069] The second seal 43 can be either a sealing ring or a sealing sheet. When the second seal 43 is a sealing sheet, the contact area between the partition 41, the second seal 43, and the sealing plate 42 can be increased, further improving the sealing performance between the sealing plate 42 and the partition 41. For example, the second seal 43 can be a sealing film.

[0070] It should be noted that when the second seal 43 is a sealing ring, it can be located on the outer periphery of the second air inlet 411. When the second seal 43 is a sealing sheet, a through hole communicating with the second air inlet 411 needs to be opened so as to ensure the flow of compressed air when the sealing plate 42 is in the first position.

[0071] In addition, the second seal 43 can also be arranged on the side of the sealing plate 42 facing the partition plate 41, and the other requirements of the second seal 43 are the same as the above-mentioned solutions, and thus the installation position of the second seal 43 is not specifically limited, and the sealing performance between the partition plate 41 and the sealing plate 42 is ensured.

[0072] As shown in FIG. 2, in some embodiments, the sealing plate 42 is arranged on the side of the partition plate 41 adjacent to the first valve 2, and the upper end of the sealing plate 42 is rotatably connected to the partition plate 41, and the sealing plate 42 can rotate from the first position to the second position under the action of gravity when the pressure in the first cavity is lower than the pressure in the second cavity. Figures 4 to 6 It can be understood that the switching of the sealing plate 42 from the first position to the second position is realized by the gravity of the sealing plate 42 itself, the automatic reset of the sealing plate 42 to cover the second air inlet hole 411 is realized, the overall structure is simple, and the cost is low.

[0073] Through the above structure, when the telescopic end of the pusher 33 pushes the push block 32 to move towards the first valve 2, the sealing plate 42 will be pushed upward by the compressed air, the compressed air enters the first pipeline 1 through the second air inlet hole 411 to push the fracturing fluid, and when the telescopic end of the pusher 33 pulls the push block 32 to move away from the first valve 2, the sealing plate 42 will rotate downward to abut against the partition plate 41 to cover the second air inlet hole 411 due to gravity, and thus the first valve 2 can not be closed, that is, the switching of the push block 32 between the air inlet position and the pressurization position in the containing cavity is realized.

[0074] Specifically, the direction of the pivot axis of the sealing plate 42 is orthogonal to the axial direction and the up-down direction of the air inlet cylinder 31. The partition plate 41 can be provided with a hinged seat 412, the upper end of the sealing plate 42 can be provided with a hinged shaft 421, the hinged shaft 421 is pivotally installed in the hinged seat 412, and the lower end of the sealing plate 42 is a free end and can swing around the upper end of the sealing plate 42. When the sealing plate 42 rotates downward to the vertical state, it abuts against the second seal 43 to completely cover the second air inlet hole 411.

[0075] As shown in FIG. 2, in some embodiments, the anti-backflow assembly 4 further comprises an elastic member 44, which is clamped between the partition plate 41 and the sealing plate 42 and can press the sealing plate 42 towards the second position.

[0076] Figure 5 It can be understood that the design of the elastic member 44 can further realize the automatic reset of the sealing plate 42, ensure the reliability of the sealing plate 42 covering the second air inlet hole 411 on the partition plate 41, and avoid the misoperation of the sealing plate 42.

[0077] It can be understood that the design of the elastic member 44 can further realize the automatic reset of the sealing plate 42, ensure the reliability of the sealing plate 42 covering the second air inlet hole 411 on the partition plate 41, and avoid the misoperation of the sealing plate 42.

[0078] ​Specifically, the elastic member 44 can be a torsion spring, the torsion spring is sleeved on the hinge shaft 421, one end of the torsion spring can be connected with the hinge seat 412, and the other end of the torsion spring can be connected with the upper end of the sealing plate 42; when the sealing plate 42 rotates downward to the vertical state, the torsion spring is twisted by a first preset angle, so that the sealing plate 42 always generates a pushing force on the partition plate 41; when the sealing plate 42 rotates upward, the torsion angle of the torsion spring increases, and after the extension end of the pusher 33 drives the push block 32 to move away from the first valve 2, the torsion spring drives the sealing plate 42 to rotate downward to reset.

[0079] As shown in Figure 1 some embodiments, the pipeline assembly further comprises a second valve 5, the second valve 5 is installed at the feed inlet 11 and is used for opening and closing the feed inlet 11.

[0080] As shown in Figure 1 some embodiments, the pipeline assembly further comprises a second pipeline 6, the second pipeline 6 communicates with the feed inlet 11, and one end of the second pipeline 6 away from the feed inlet 11 is connected with the second valve 5. Wherein, the second pipeline 6 can be integrally formed with the first pipeline 1.

[0081] The pipeline assembly of the utility model embodiment is used for connecting the mixing device and the pumping device, and the pipeline assembly comprises a first pipeline 1, a second pipeline 6 and a third pipeline 7.

[0082] According to the fracturing fluid conveying system of the utility model embodiment, the pipeline assembly is designed to have the structure of the booster assembly 3, the pipeline assembly can be pushed out without being disassembled from the mixing device and the pumping device, the booster assembly 3 can pressurize in the first pipeline 1, the fracturing fluid blocked in the first pipeline 1 can be pushed out, and the pipeline cleaning operation of the pipeline assembly is completed, so that the pipeline cleaning efficiency of the fracturing fluid conveying system of the pipeline assembly is high, and the fracturing operation efficiency is ensured.

[0083] Specifically, the mixing device and the pumping device can adopt the existing technology in the field, and will not be specifically expanded here.

[0084] As shown in Figure 1 some embodiments, the pipeline assembly further comprises a third pipeline 7, the third pipeline 7 communicates with the discharge port of the mixing device, and one end of the third pipeline 7 away from the discharge port of the mixing device is connected with the end of the second valve 5 away from the second pipeline 6.

[0085] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0086] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0087] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0088] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0089] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0090] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A pipe assembly, characterized in that, The utility model relates to a kind of pipe cleaning device, including: First pipeline, the first pipeline is equipped with feed port, discharge port and booster port; First valve, the first valve is connected with the first pipeline and is used to open and close the booster port; The booster assembly is connected with the end of the first valve away from the first pipeline, and the booster assembly can generate thrust on the material in the first pipeline to make the blocked material discharge from the discharge port.

2. The plumbing assembly of claim 1, wherein, The booster assembly includes: Air inlet cylinder, the air inlet cylinder is connected with the end of the first valve away from the first pipeline, and the air inlet cylinder has accommodating cavity and is equipped with first air inlet hole communicating with the accommodating cavity, and the accommodating cavity extends along the axial direction of the air inlet cylinder; Push block, the push block is slidingly fitted in the accommodating cavity and has air inlet position and booster position, in the air inlet position, the push block, the first air inlet hole and the first valve are sequentially arranged along the axial direction of the air inlet cylinder, and the push block can slide towards the first valve to compress the air in the accommodating cavity when the push block is switched from the air inlet position to the booster position, and the push block is located between the first air inlet hole and the first valve in the booster position.

3. The plumbing assembly of claim 2, wherein, The booster assembly further includes a pusher, and the mounting end of the pusher is connected with the end of the air inlet cylinder away from the first valve.

4. The plumbing assembly of claim 2, wherein, The booster assembly further includes a first sealing member, and the first sealing member is clamped between the outer circumferential surface of the push block and the inner circumferential surface of the air inlet cylinder.

5. The plumbing assembly of claim 2, wherein, The utility model further includes an anti-backflow assembly, and the anti-backflow assembly is arranged in the accommodating cavity and located between the first air inlet hole and the first valve in the axial direction of the air inlet cylinder.

6. The plumbing assembly of claim 5, wherein, The anti-backflow assembly includes: A partition plate is arranged in the accommodating cavity and divides the accommodating cavity into a first cavity and a second cavity in the axial direction of the air inlet cylinder, the push block is located in the first cavity, and the second cavity is closer to the first valve than the first cavity. A sealing plate is movably connected with the partition plate and arranged in the accommodating cavity, and the sealing plate has a first position for opening the second air inlet hole and a second position for covering the second air inlet hole.

7. The plumbing assembly of claim 6, wherein, When the push block is switched from the booster position to the air inlet position, the sealing plate can move from the first position to the second position relative to the partition plate. The anti-backflow assembly further includes a second sealing member, and the second sealing member is arranged on the side of the partition plate facing the sealing plate.

8. The plumbing assembly of claim 6, wherein, The second sealing member is one of a sealing ring and a sealing sheet. The sealing plate is arranged on the side of the partition plate adjacent to the first valve, the upper end of the sealing plate is rotatably connected with the partition plate, and the sealing plate can rotate from the first position to the second position under the action of gravity when the pressure in the first cavity is lower than the pressure in the second cavity.

9. The plumbing assembly of claim 8, wherein, The backflow prevention assembly further comprises an elastic member clamped between the partition plate and the sealing plate and capable of pressing the sealing plate towards the second position.

10. A fracturing fluid delivery system characterized by, Comprising: a pipe assembly according to any one of claims 1-9; a mixing device and a pumping device, the discharge opening of the mixing device being connected to the feed opening of the pipe assembly, and the pumping device being connected to the discharge opening of the pipe assembly.

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