A pipeline dredging device and system

Abstract

The present invention discloses a pipeline dredging device and system. The pipeline dredging device includes a housing and a flexible sleeve. Among them, the housing has a medium interface communicating with the inner cavity of the housing and a dredging interface for connecting with a pipeline to be dredged. The flexible sleeve is placed in the housing. The circumference of the first end thereof is fixedly connected to the dredging interface along the circumference. The pipe orifice of the second end thereof is closed and connected to the main body of the housing. The flexible sleeve has a predetermined length and is configured such that when the medium entering the inner cavity of the housing from the medium interface acts on the flexible sleeve, the main body of the flexible sleeve can extend from the dredging interface in a nested state into the pipeline to be dredged. Applying this solution, on the basis of solving the problem of pipeline blockage, it has good operability.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline dredging, and particularly relates to a pipeline dredging device and system. Background Art

[0002] With the development of modern technology and the surging demand for energy and materials, process industrial systems have become increasingly complex. Taking the fields of petroleum, chemical industry, and nuclear power as examples, industrial pipelines for transporting fluids, powders, and solids are characterized by gradually increasing diameters, gradually increasing pressures, and gradually increasing transportation distances. In engineering practice, accidents or production stoppages caused by pipeline blockages occur from time to time.

[0003] Especially for the fuel ball transportation pipeline of the fuel handling system of a high-temperature gas-cooled reactor nuclear power plant, which operates in a high-radiation environment and is mainly used to transfer and transport unburned fuel balls by pneumatic transportation, it has the characteristics of a tortuous route and being difficult for personnel to approach. During service, the pipeline may undergo minor deformations due to reasons such as welding technology, thermal deformation, and radiation aging. If a fuel ball breaks, fuel balls and broken pieces may bridge and become stuck in the deformed pipeline. If not dredged in time, it may affect the working efficiency of the reactor.

[0004] In view of this, there is an urgent need to propose an innovative solution for the dredging technology of solid material transportation pipelines to effectively solve the problem of pipeline blockage. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a pipeline dredging device and system, which has good operability on the basis of solving the problem of pipeline blockage.

[0006] The pipeline dredging device provided by the present invention includes a housing and a flexible sleeve; wherein, the housing has a medium interface communicating with the inner cavity of the housing and a dredging interface for connecting with the pipeline to be dredged; the flexible sleeve is placed in the housing, the periphery of its first end is fixedly connected with the dredging interface in a circumferential direction, the pipe orifice of its second end is closed and connected with the body of the housing; the flexible sleeve has a predetermined length and is configured such that when the medium entering the inner cavity of the housing from the medium interface acts on the flexible sleeve, the body of the flexible sleeve can extend from the dredging interface in a nested state into the pipeline to be dredged.

[0007] Preferably, it further includes a sleeve winding shaft placed in the housing, and both shaft ends of the sleeve winding shaft are pivotally connected to the body of the housing; the flexible sleeve is wound around the sleeve winding shaft with its second end as a fixed point with the sleeve winding shaft.

[0008] Preferably, it further includes a fixing member, a sleeve fixing ring piece, and a fastening member; wherein, the fixing member has an adapting interface adapted to the dredging interface; the outer ring body of the sleeve fixing ring piece is placed between the dredging interface and the adapting interface; the body of the flexible sleeve extends out through the middle through hole of the sleeve fixing ring piece, and the peripheral edge of its first end is placed between the sleeve fixing ring piece and the fixing member; the fastening member is used for axially fixing the adapting interface and the dredging interface to clamp and seal the first end of the flexible sleeve.

[0009] Preferably, it further includes a gasket placed between the sleeve fixing ring piece and the dredging interface.

[0010] Preferably, the dredging interface and the adapting interface are flanges.

[0011] Preferably, it further includes a pressure sensor for collecting the medium pressure in the inner cavity of the housing.

[0012] Preferably, the flexible sleeve is made of carbon fiber film.

[0013] The present invention also provides a pipeline dredging system, including the pipeline dredging device, a medium conveying device, a driving device, and a clutch device as described above; wherein, the medium conveying device is communicated with the medium interface of the housing to input a medium that can act on the flexible sleeve; the power output end of the driving device is in transmission connection with the sleeve winding shaft to provide a driving force for the flexible sleeve to wind around the sleeve winding shaft; the clutch device is arranged between the power output end of the driving device and the sleeve winding shaft.

[0014] Preferably, it further includes: a tee joint for being placed on the pipeline to be dredged through its first pipe orifice and second pipe orifice, its third pipe orifice is communicated with the dredging interface of the housing, and the third pipe orifice extends in a direction forming an obtuse angle with the pipe section to be dredged of the pipeline to be dredged.

[0015] Preferably, it further includes: a stop valve arranged on the communication pipeline between the third pipe orifice and the dredging interface.

[0016] Preferably, it further includes: a control unit for outputting control instructions to the control ends of the medium conveying device, the driving device, the stop valve, and / or the clutch device.

[0017] Preferably, the medium conveying device is an air compressor.

[0018] Preferably, a plurality of pipeline dredging devices are provided, which are respectively arranged corresponding to a plurality of pipe sections to be dredged of the pipeline to be dredged.

[0019] Compared with the existing pipeline dredging technologies, the present invention takes a different approach and proposes an innovative implementation method using a flexible component as the dredging execution component. The housing, serving as the basic structure, is used to connect to the pipeline to be dredged. The flexible sleeve placed inside the housing can extend into the pipeline to be dredged under the action of the medium pressure. Specifically, the circumferential edge of the first end of the flexible sleeve is fixedly connected to the dredging interface in a circumferential direction. Its second end is connected to the main body of the housing and the pipe orifice is closed. Based on the physical properties of the flexible sleeve body, when the medium enters the inner cavity of the housing and acts on the flexible sleeve, the flexible sleeve body with a predetermined length can extend from the dredging interface in a nested state into the pipeline to be dredged. With such a setting, when the front end of the flexible sleeve entering the pipeline touches the blocked object in the pipeline, an axial thrust acting on the blocked object is formed under the action of the medium pressure inside the sleeve, thereby destroying the bridging of the blocked object and pushing the blocked object to displace forward in the pipeline, and further being able to avoid the impact of pipeline blockage on the normal operation efficiency of the system. At the same time, this solution can determine the predetermined length of the flexible sleeve according to the pipeline to be dredged, meeting the needs of different usage environments and having good operability.

[0020] In a preferred embodiment of the present invention, the flexible sleeve is wound around a sleeve winding shaft pivotally connected to the housing to better control the nested extension of the flexible sleeve and the sleeve arrangement inside the housing. Further, a driving device is used to provide the winding driving force for the flexible sleeve. After the dredging operation is completed, the driving device drives the sleeve winding shaft to rotate, and the flexible sleeve body extending into the pipeline is gradually retracted and wound tightly onto the sleeve winding shaft for the next use, which can further improve the operability of the device.

[0021] In another preferred embodiment of the present invention, the first end of the flexible sleeve extends out through the central through-hole of the sleeve fixing ring plate, and the circumferential edge of the first end is placed between the sleeve fixing ring plate and the fixing member. Thus, on the basis of realizing the reliable connection of the housing dredging interface by using fasteners, the fixed connection of the first end of the flexible sleeve is achieved simultaneously, which is convenient for disassembly and replacement and has a simple and reliable structure.

[0022] In yet another preferred embodiment of the present invention, a flexible sleeve made of carbon fiber film is used for the ball transfer pipeline of the fuel handling system of a high-temperature gas-cooled reactor, so as to avoid the damage that may be caused by daily radiation and has a good service life.

[0023] In a preferred embodiment of the system of the present invention, a stop valve is provided between the dredging interface of the device housing and the tee connector. That is, the connection relationship between the dredging device and the pipeline can be dynamically switched through the stop valve. With this arrangement, on the one hand, when the system pipeline is in normal operation, the stop valve is switched to the closed state, and the material transported in the pipeline is physically separated from the dredging device, which can avoid the influence on the dredging device due to the material properties. When a clogging accident occurs in the system pipeline, the stop valve can be opened to perform the dredging operation. In addition, based on the setting of the stop valve, when the pipeline dredging device needs to be repaired and maintained, the stop valve can be switched to the closed state, thereby improving the overall operability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the front view of the pipeline dredging device described in the specific embodiment;

[0025] Figure 2 is Figure 1 the top view of the pipeline dredging device shown in;

[0026] Figure 3 is Figure 2 the A-A cross-sectional view of;

[0027] Figure 4 is the schematic diagram of the usage state after the flexible sleeve is overlapped and extended as described in the specific embodiment;

[0028] Figure 5 is Figure 3 the enlarged view of part B of;

[0029] Figure 6 is Figure 3 the C-C cross-sectional view of;

[0030] Figure 7 is the schematic diagram of the pipeline dredging system described in Embodiment 1;

[0031] Figure 8 is the schematic diagram of the pipeline dredging system described in Embodiment 2.

[0032] In the figure:

[0033] pipeline dredging device 10, medium conveying device 20, pipeline to be dredged 30, control unit 40, driving device 50, clutch device 60, tee connector 70, first pipe orifice 71, second pipe orifice 72, third pipe orifice 73, tee connector 70′, first pipe orifice 71′, second pipe orifice 72′, third pipe orifice 73′, stop valve 80;

[0034] Shell 1, medium interface 11, dredging interface 12, sealing cover 13, blind cover 14, flexible sleeve 2, first end 21, second end 22, sleeve winding shaft 3, fixing member 4, adapter interface 41, sleeve fixing ring 5, central through hole 51, fastener 6, gasket 7, pressure sensor 8. Detailed implementation mode

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Without loss of generality, this implementation mode describes the main body based on the pipeline dredging device shown in the figure, and details the specific implementation mode of using a flexible part as the dredging execution part in this application. It should be understood that the dimensional proportional relationship of the relevant basic components is not the core inventive point of this application, and does not constitute a substantial limitation to the pipeline dredging solution claimed in this application.

[0037] Please refer to Figure 1 and Figure 2 , where Figure 1 is the front view of the pipeline dredging device described in this implementation mode, Figure 2 is Figure 1 the top view of the pipeline dredging device shown in

[0038] The pipeline dredging device 10 includes a shell 1. As a basic component, the shell 1 has a medium interface 11 communicated with the inner cavity of the shell to communicate with a medium conveying device (20) and establish a pressure medium conveying channel; at the same time, the dredging interface 12 of the shell 1 is used to connect with the pipeline 30 to be dredged, so that the flexible sleeve 2 inside the shell 1 can extend into the pipeline 30 to perform dredging operations.

[0039] Among them, the flexible sleeve 2 placed in the shell 1, specifically, the periphery of the first end 21 of the flexible sleeve 2 is fixedly connected to the dredging interface 12 in the circumferential direction, and its second end 22 is connected to the main body of the shell 1, and the pipe orifice of the second end 22 is closed to prevent the pressure medium from entering the center of the flexible sleeve 2 from the pipe orifice of the second end 22. Please refer to Figure 3 and Figure 4 , where Figure 3 is Figure 2 the A-A cross-sectional view of , and the state shown in the figure is the non-dredging state, Figure 4 is the schematic diagram of the use state after the flexible sleeve described in this implementation mode is stacked and extended.

[0040] In this solution, the flexible sleeve 2 has a predetermined length that meets the requirements of the dredging stroke. After the medium enters the inner cavity of the housing 1 from the medium interface 11, based on the physical properties of the flexible sleeve 2 body, when the medium pressure acts on the flexible sleeve 2, the body of the flexible sleeve 2 can extend from the dredging interface 12 in a nested state into the pipeline 30 to be dredged. During the process, since the first end 21 of the flexible sleeve 2 always remains fixed, while the front end of the body extending in a nested state into the pipeline 30 to be dredged changes dynamically. When it touches the blocked object in the pipeline, under the action of the medium pressure in the sleeve, an axial thrust acting on the blocked object is formed, thereby breaking the blocked object's bridging and pushing the blocked object to move forward in the pipeline. Compared with the traditional steel wire soft shaft dredging method, this solution has the characteristics of clear action position and large thrust, and can easily break the bridge and push away the sundries blocked in the pipeline.

[0041] In different application scenarios, when there are special environmental applicability requirements for the selection of device materials, the material of the flexible sleeve 2 can be selected according to specific circumstances. For example, but not limited to, when applied to the dredging of the ball transfer pipeline in the fuel handling system of a high-temperature gas-cooled reactor, the flexible sleeve 2 is made of carbon fiber film; when applied to other occasions, other film materials can be used according to the temperature, pressure, corrosion resistance requirements, etc. of the application scenario. It should be understood that the above flexible film materials are not the core invention points of this application, and those skilled in the art can implement them based on the prior art, so they will not be elaborated herein.

[0042] Here, the predetermined length of the flexible sleeve 2 can be determined according to the actual treatment section of the pipeline to be dredged. In order to arrange the sleeve in the housing orderly, a sleeve winding shaft 3 can be arranged in the housing 1. The flexible sleeve 2 takes its second end as the base point fixed to the sleeve winding shaft 3 and is wound around the sleeve winding shaft 3, and both ends of the sleeve winding shaft 3 are pivotally connected to the body of the housing 1. In the non-working state, the flexible sleeve 2 can be wound around the sleeve winding shaft 3 pivotally connected to the housing 1, so that the sleeve in the housing is arranged orderly, reducing the occupancy of the space in the housing and forming a good medium channel in the housing to ensure the smooth and reliable process of the nested extension of the flexible sleeve 2; when performing the dredging operation, under the drive of the gradually extending flexible sleeve 2 body, the sleeve winding shaft 3 rotates adaptively relative to the housing 1.

[0043] Specifically, when the flexible sleeve 2 winding shaft system rotates forward under the drive of air pressure, the front end of the flexible sleeve 2 extends and nests into the pipeline to be dredged, and the maximum elongation is approximately about 1 / 2 of the total length of the sleeve. When the front end of the flexible sleeve 2 touches the blocked object in the pipeline, an axial pressure is applied to the blocked object under the action of the air pressure on the other side of the flexible sleeve 2, breaking the blocked object's bridging and pushing the blocked object forward in the pipeline. Among them, the pressure F is determined by the following formula:

[0044] F = Pπ(Do / 2)^2, where:

[0045] F - The force acting on the blocked object in the axial direction of the pipeline, unit: N;

[0046] P - The intake pressure of the dredging device, unit: MPa;

[0047] Do - The inner diameter of the flexible dredging sleeve (approximately equal to the inner diameter of the pipeline to be dredged), unit: mm;

[0048] When the inner diameter of the pipeline to be dredged is fixed, the magnitude of F can be achieved by adjusting the intake pressure P of the dredging device. During the dredging operation, in order to avoid the stress concentration phenomenon at the front end of the flexible sleeve 2, the maximum intake pressure P of the dredging device shall not be greater than 1 / 4 of the tensile strength limit of the material used for the flexible sleeve 2.

[0049] Of course, the arrangement of the flexible sleeve 2 in the housing 1 is not limited to the winding method shown in the figure. It can be understood that for the flexible sleeve 2 with a relatively long predetermined length, adopting the winding arrangement of the flexible sleeve inside the housing has more obvious advantages.

[0050] For example but not limited to, the dredging interface 12 of the pipeline dredging device 10 can adopt the flange shown in the figure. Correspondingly, by assembling with the flange on the side of the pipeline to be dredged through this flange, it has the characteristics of high connection reliability and easy operation.

[0051] Here, the flange on the side of the pipeline to be dredged can be a flange directly configured on the pipeline to be dredged, or a flange on a tee joint arranged on the pipeline to be dredged. It should be understood that as long as it meets the functional requirements of the above reliable connection, it is within the scope of protection requested in this application.

[0052] As can be seen from the above description of the solution, the sealing and fixing connection between the peripheral edge of the first end 21 of the flexible sleeve 2 and the dredging interface 12 has two main functions: one is that the first end 21 of the flexible sleeve 2 is relatively fixed to ensure that its body telescopically extends under the action of the pressure medium; the other is that there is no medium leakage between the second end 22 of the flexible sleeve 2 and the dredging interface 12, and the formed medium pressure acts entirely on the sleeve body. In order to more conveniently and reliably achieve the sealing and fixing connection relationship of the first end 21 of the flexible sleeve 2, the clamping force formed by the flange can be fully utilized.

[0053] Please refer to Figure 3 、 Figure 4 and Figure 5 , where Figure 5 is Figure 3 The enlarged view of part B of. As shown in the figure, the fixing member 4 has an adapter interface 41 adapted to the dredging interface 12, that is, the fixing member 4 and the housing 1 are assembled in the form of a flange interface.

[0054] Such as Figure 5As shown, a sleeve fixing ring piece 5 is arranged between the two. Specifically, the outer ring body of the sleeve fixing ring piece 5 is placed between the flange of the housing 1 and the fixing member 4, and has a central through hole 51; as Figure 5 shown, the body of the flexible sleeve 2 extends out through the central through hole 51 of the sleeve fixing ring piece 5, and the peripheral edge of its first end 21 is placed between the sleeve fixing ring piece 5 and the fixing member 4; the fastener 6 is used to axially fix the adapter interface 41 and the dredging interface 12 to clamp and seal the first end 21 of the flexible sleeve 2. With such a setting, the assembly process is relatively simple. On the basis of realizing the reliable connection of the housing dredging interface 12 by using the fastener 6, the sealing connection of the first end 21 of the flexible sleeve 2 is achieved at the same time, which is convenient for disassembly and replacement.

[0055] It should be noted that when the pipeline dredging device 10 is an independent device that can be transferred to different sites, the fixing member 4 can be a transition member connected to the pipeline 30 to be dredged. When the pipeline dredging device 10 is a special fixing device for the pipeline 30 to be dredged, the fixing member 4 can be a member directly configured on the pipeline to be dredged, or a tee joint arranged on the pipeline to be dredged, which has the functions of assembling connection and sealing the first end of the flexible sleeve.

[0056] Further as Figure 5 shown, a gasket 7 can also be arranged between the sleeve fixing ring piece 5 and the dredging interface 12 of the housing 1. In this way, when the fastener 6 applies a clamping force, the fitting and fixing between the two are more reliable.

[0057] In addition, in order to improve the controllability of the pipeline dredging device, the device can be further optimized. As Figure 1 and Figure 2 shown, the device is equipped with a pressure sensor 8 for collecting the medium pressure in the inner cavity of the housing 1. In actual application, the pressure sensor 8 can feedback the collected cavity medium pressure to the control unit 40 to form a closed-loop control that can ensure the control accuracy.

[0058] Furthermore, a driving device 50 can be used to provide the winding driving force for the flexible sleeve 2. Please also refer to Figure 6 This figure is Figure 3 the C-C cross-sectional view of

[0059] In this solution, one end of the casing winding shaft 3 that establishes a driving connection is configured to be connected to the driving device 50 through a clutch device 60. In this way, when the dredging operation is performed, the clutch device 60 is switched to a disengaged transmission state, so that the casing winding shaft 3 can rotate freely, meeting the need for the flexible casing 2 to be stacked and extended. After the dredging operation is completed, the driving device 50 is started based on the control instruction, and the clutch device 60 is switched to an engaged transmission state. The casing winding shaft is driven by the driving device to rotate, and the flexible casing body extending into the pipeline is gradually retracted and wound tightly onto the casing winding shaft to wait for the next use.

[0060] The driving device 50 may be a motor, or a motor equipped with a speed reduction mechanism.

[0061] Figure 6 As shown, the pivotal relationship between the shaft ends on both sides of the sleeve winding shaft 3 is respectively constructed by bearings embedded in the side wall of the housing 1, which can reduce the rotation resistance of the shaft system. Among them, the driving connection end is sealed by a sealing cover 13 with a through hole in the middle, and forms an axial limit for the outer ring of the bearing on this side; the other end is sealed by a blind cover 14, which also forms an axial limit for the outer ring of the corresponding side bearing. Of course, the blind cover design can also be omitted, and the blind cover can be removed to form a sealing and bearing limit structure using the housing 1 (not shown in the figure), which also meets the pivotal function of the sleeve winding shaft 3 and the function of isolating the atmosphere inside and outside the housing.

[0062] In addition to the aforementioned pipeline dredging, this embodiment also provides two pipeline dredging system embodiments.

[0063] Embodiment 1:

[0064] See also Figure 7 , which shows the schematic diagram of the pipeline dredging system described in this embodiment.

[0065] The pipeline dredging system includes the aforementioned pipeline dredging device 10, and also includes a medium conveying device 20, a driving device 50 and a clutch device 60. The medium conveying device 20 is connected to the medium interface 11 of the housing 1, and an air compressor that provides air as a working medium can be selected to input gas that can act on the flexible sleeve 2 and provide a good gas driving working pressure; for example, but not limited to, a membrane press to provide cleaner gas or an isolated atmosphere.

[0066] The power output end of the driving device 50 is connected to the sleeve winding shaft in a transmission manner to provide a driving force for the flexible sleeve to be wound on the sleeve winding shaft; a clutch device 60 is arranged between the two to switch between the disengaged transmission state and the engaged transmission state as required.

[0067] like Figure 7As shown, a tee joint 70 is also provided on the pipeline 30 to be dredged. The tee joint 70 is placed on the pipeline 30 to be dredged through its first pipe orifice 71 and second pipe orifice 72, and its third pipe orifice 73 is communicated with the dredging interface 12 of the housing 1.

[0068] To further improve the system operability, a stop valve 80 and a control unit 40 can also be configured as shown in the figure.

[0069] Among them, the stop valve 80 is arranged on the connecting pipeline between the third pipe orifice 73 of the tee joint 70 and the dredging interface 12 of the pipeline dredging device 10. When the system pipeline is in normal working state, the stop valve 80 is switched to the closed state, and the material transported in the pipeline is physically separated from the dredging device, which can avoid the influence on the dredging device based on the material properties; and when a clogging accident occurs in the system pipeline, the stop valve 80 can be opened to perform the dredging operation. In addition, based on the setting of the stop valve 80, when the pipeline dredging device needs to be overhauled and maintained, the stop valve 80 can be switched to the closed state.

[0070] Of course, for the case where the flange on the side of the pipeline to be dredged is directly configured on the pipeline to be dredged, the stop valve 80 is correspondingly configured on the connecting pipeline between the pipeline flange (not shown in the figure) and the dredging interface 12 of the pipeline dredging device.

[0071] Among them, the control unit 40 is used to output control instructions to the control ends of the medium conveying device 20, the driving device 50, the stop valve 80 and / or the clutch device 60. The control unit 40 can adopt a PLC controller. Based on the parameter information real-time fed back by signal acquisition components such as the pressure sensor 8, the PLC controller can output control instructions to one or more of the above-mentioned execution components according to a preset control strategy.

[0072] For example but not limited to, when the system is working normally, the stop valve 80 is in the closed state. In the accident condition, the PLC is triggered to open the stop valve 80, and on this basis, the dredging operation is performed. After the dredging work is completed, under the control of the PLC, the compressor interface discharges the redundant gas, the clutch device 60 is switched to the engaged state, the driving device 50 starts to work, and the flexible sleeve 2 is gradually retracted. When the sleeve winding shaft 3 is completely wound on the sleeve winding shaft 3, the stop valve 80 is controlled to close and wait for the next dredging task.

[0073] When applying this solution for dredging operation, the whole process can be remotely operated, and automatic operation conditions can be achieved after cooperating with the PLC logic, which is more suitable for industrial occasions where the environment is inaccessible or harmful to the human body.

[0074] Embodiment 2:

[0075] Compared with the first embodiment, the difference of the pipeline dredging system described in this solution is that: the third pipe orifice 73' of the tee joint 70' extends in a direction forming an obtuse angle with the pipe section to be dredged of the pipeline 30 to be dredged. Please refer to Figure 8 , which shows the schematic diagram of the pipeline dredging system described in this embodiment. In order to clearly show the differences and connections between the two, the same components or structures are marked with the same labels in the figure.

[0076] In this solution, the first pipe orifice 71' and the second pipe orifice 72' of the tee joint 70' are placed on the pipeline 30 to be dredged, specifically on the upstream side of the pipe section to be dredged. As shown in the figure, the third pipe orifice 73' extends in a direction forming an obtuse angle with the pipe section to be dredged of the pipeline 30 to be dredged, that is, the included angle θ between the extending direction of its third pipe orifice 73' and the pipe section to be dredged of the pipeline 30 to be dredged is an obtuse angle. With such a setting, when the medium pressure acts on the flexible sleeve 2, the working resistance of the front end of the flexible sleeve 2 extending in an overlapping manner can be effectively reduced, and the working efficiency of removing the blocked object can be improved.

[0077] In addition, two pipeline dredging devices 10 shown in the figure are provided, which are respectively arranged corresponding to the two pipe sections to be dredged of the pipeline 30 to be dredged. In actual engineering design, if the pipeline to be dredged is relatively long, other plural pipeline dredging devices (not shown in the figure) can be arranged on the same pipeline.

[0078] In addition, for pipelines that may enter fuel fragments from two or more directions (pipelines that may be blocked in two directions or multiple directions), such as Figure 8 shown, the pipeline dredging devices 10 provided in this solution can be respectively arranged at both ends of the pipeline to realize the two-way dredging operation as shown by the arrows in the figure, ensuring quick blockage removal.

[0079] It should be noted that in the above-mentioned embodiments provided by this embodiment, the pipeline dredging devices 10 are one and two respectively, and can be specifically configured according to the pipeline length and the formation direction of the blocked object. It should be understood that the specific implementation manners of the functional components such as the system medium conveying device 20, the driving device 50, the clutch device 60 and the control unit 40 are not the core inventive points of this application, and those skilled in the art can implement them based on the prior art, so they will not be elaborated herein.

[0080] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. Pipeline dredging device, characterized in that, include: The shell has a medium interface communicating with the inner cavity of the shell and a dredging interface for connecting with the pipeline to be dredged; A flexible sleeve made of carbon fiber film is placed in the shell, the circumference of the first end is sealed and connected to the dredging interface along the circumferential direction, and the pipe opening of the second end is closed and connected to the body of the shell; the flexible sleeve has a predetermined length and is configured such that when the medium entering the inner cavity of the shell from the medium interface acts on the flexible sleeve, the body of the flexible sleeve can extend from the dredging interface in a stacked shape into the pipeline to be dredged; The sleeve winding shaft is placed in the housing, and the shaft ends on both sides of the sleeve winding shaft are pivotally connected to the main body of the housing; the flexible sleeve is wound on the sleeve winding shaft with its second end as the base point fixed to the sleeve winding shaft; A fixing member having an adapting interface adapted to the dredging interface; A sleeve fixing ring, whose outer ring body is placed between the dredging interface and the adapter interface; the body of the flexible sleeve extends out through the middle through hole of the sleeve fixing ring, and the periphery of the first end is placed between the sleeve fixing ring and the fixing member; A fastener is used to axially fix the adapter interface and the dredging interface to clamp and seal the first end of the flexible sleeve.

2. The pipeline dredging device according to claim 1, characterized in that, Also includes: A gasket is placed between the sleeve fixing ring and the dredging interface.

3. The pipeline dredging device according to claim 1 or 2, characterized in that The dredging interface and the adapting interface are flanges.

4. The pipeline dredging device according to claim 3, characterized in that, Also includes: The pressure sensor is used to collect the medium pressure in the inner cavity of the shell.

5. Pipeline dredging system, characterized in that, include: The pipeline dredging device according to any one of claims 1 to 4; A medium conveying device, connected to the medium interface of the housing, to input a medium that can act on the flexible sleeve; A driving device, whose power output end is drivingly connected to the sleeve winding shaft to provide a driving force for winding the flexible sleeve on the sleeve winding shaft; The clutch device is arranged between the power output end of the driving device and the sleeve winding shaft.

6. The pipeline dredging system according to claim 5, characterized in that, Also includes: The three-way connector is used to be placed on the pipeline to be dredged through its first and second pipe openings, and its third pipe opening is connected to the dredging interface of the shell, and the third pipe opening is extended in a direction forming an obtuse angle with the pipe section to be dredged.

7. The pipeline dredging system according to claim 6, characterized in that, Also includes: A stop valve is arranged on the connecting pipeline between the third pipe opening and the dredging interface.

8. The pipeline dredging system according to claim 7, characterized in that Also includes: A control unit is used to output control instructions to the control end of the medium conveying device, the driving device, the stop valve and / or the clutch device.

9. The pipeline dredging system according to claim 8, characterized in that, The medium conveying device is an air compressor.

10. The pipeline dredging system according to claim 5, characterized in that, The pipeline dredging devices are provided in plurality and are respectively provided corresponding to the plurality of pipeline sections to be dredged.

Images