CN-121976585-A - Flexible throttling disturbance assembly, flushing and discharging system and control method of flushing and discharging system

Abstract

The invention relates to a flexible throttling disturbance assembly, a flushing system and a control method thereof, wherein the flexible throttling disturbance assembly comprises a flexible pipe, the flexible pipe is provided with a plurality of fold parts which are arranged along the circumference of the flexible pipe, the fold parts are all in spiral shape, the fold parts of the flexible pipe are passively deformed through the change of fluid in the fold parts so as to cause the disturbance of the fluid in the flexible pipe, when the condition of blockage, the increase of the concentration of the fluid and the like occurs in the flexible pipe, the local shear rate of the fluid in the flexible pipe is reduced, at the moment, the upstream and the downstream of the flexible pipe form pressure difference, and the flexible pipe is slightly expanded along the radial direction, so that the local fluid motion rule is changed, the disturbance is realized, and the blockage risk is reduced.

Inventors

• WEI WEI
• SUN TAO

Assignees

• 武汉理工大学

Dates

Publication Date

20260505

Application Date

20260310

Claims (10)

1. 1. A flexible throttle perturbation assembly, comprising: A flexible tube having a plurality of folds arranged along its circumference, a plurality of said folds each being helical, the plurality of folds of the flexible tube being passively deformed via fluid changes therein for causing a fluid disturbance within the flexible tube.
2. 2. The flexible throttle perturbation assembly of claim 1, further comprising a plurality of flexible perturbation fins, the plurality of flexible perturbation fins being in one-to-one correspondence with the plurality of folds, the flexible perturbation fins being disposed within the flexible tube and fixedly connected with the corresponding folds.
3. 3. The flexible throttle perturbation assembly of claim 2, wherein the cross section of the corrugated portion is V-shaped, one side of the flexible perturbation rib is connected to the tip of the inner wall of the corrugated portion, and the other side of the flexible perturbation rib is disposed against the inner wall of the flexible tube.
4. 4. The flexible throttle disturbance assembly according to claim 1, wherein a plurality of the pleat portions are uniformly arranged circumferentially along the flexible pipe.
5. 5. The flexible, throttled perturbation assembly of claim 1, wherein the flexible tube comprises an inner layer and an outer layer, the inner layer being an ultra high molecular weight polyethylene layer and the outer layer being a highly elastic composite layer.
6. 6. The flexible throttle disturbance assembly according to claim 1, further comprising a plurality of amplitude limiting skeletons, wherein the plurality of amplitude limiting skeletons are in one-to-one correspondence with the plurality of pleat portions, and wherein the plurality of amplitude limiting skeletons are each spiral and embedded in a corresponding pleat portion.
7. 7. A flushing system comprising the flexible throttle perturbation assembly of any one of claims 1-6, further comprising a pulse water injection assembly, a water injection end of the pulse water injection assembly in communication with the flexible tube.
8. 8. The system of claim 7, further comprising a control assembly for detecting a pressure differential across the flexible tube, the control assembly being coupled to the pulse water injection assembly, the control assembly controlling the operation of the pulse water injection assembly based on the pressure differential.
9. 9. The irrigation and drainage system of claim 8, wherein the control assembly comprises a data acquisition module, a flow resistance analysis module and a pulse control module which are electrically connected in sequence, the acquisition module is provided with an acquisition end for acquiring operation monitoring data in the flexible pipe, the flow resistance analysis module is used for analyzing the operation monitoring data and obtaining an analysis result, and the pulse control module is electrically connected with the pulse water injection assembly and is used for controlling the action of the pulse water injection assembly according to the analysis result.
10. 10. A control method of a flushing system, characterized in that it is adapted to a flushing system according to any one of claims 7-9, comprising the steps of: acquiring operation monitoring data in an underwater dredging pipeline; According to the operation monitoring data, analyzing the flow resistance increasing trend in the pipeline and obtaining an analysis result; And obtaining pulse data for controlling the pulse water injection assembly according to the analysis result.

Description

Flexible throttling disturbance assembly, flushing and discharging system and control method of flushing and discharging system Technical Field The invention relates to the technical field of underwater sediment/slurry conveying, in particular to a flexible throttling disturbance assembly, a flushing and discharging system and a control method thereof. Background In the underwater dredging operation of ports and wharfs, the crawler-type dredging robot has unique advantages. The characteristics of small and exquisite flexibility make it adapt to the complicated topography under water especially, are particularly useful for areas that traditional equipment such as deep water district, narrow channel are difficult to reach, realize accurate cutting, and cooperation automated control system accomplishes location, excavates, carries full flow operation, promotes desilting efficiency by a wide margin and reduces manual intervention intensity. However, due to the characteristics, the dredging robot is required to discharge high-concentration sediment to a shore-based or open sea target area through a pipeline system during operation. Because the pipeline length is large, the conveying pressure difference is high, and the robot is unstable in operation, the sediment concentration fluctuation is severe, and the blocking process is extremely easy to induce under the specific flow state condition. In the prior art, the treatment is carried out by combining real-time differential pressure judgment with a one-key back flushing mode, but the methods generally lag response, can cause operation interruption and equipment loss, and influence operation continuity and safety. Therefore, a flushing system and a flushing method capable of reducing the risk of blockage and improving the conveying stability and the system reliability of the crawler-type underwater dredging robot are needed. Disclosure of Invention In view of the foregoing, there is a need for a flexible throttling disturbance assembly, a flushing system and a control method thereof, which solve the above-mentioned problems. In a first aspect, embodiments of the present invention provide a flexible, throttled disturbance assembly comprising a flexible pipe having a plurality of folds arranged along its circumference, the plurality of folds each being helical, the plurality of folds of the flexible pipe being passively deformed via fluid changes therein for causing a fluid disturbance within the flexible pipe. Further, the flexible turbulent flow pipe further comprises a plurality of flexible turbulent flow ribs, the flexible turbulent flow ribs and the fold parts are in one-to-one correspondence, and the flexible turbulent flow ribs are arranged in the flexible pipe and fixedly connected with the corresponding fold parts. Further, the cross section of the fold part is V-shaped, one side of the flexible turbulence rib is connected with the tip end of the inner wall of the fold part, and the other side of the flexible turbulence rib is arranged opposite to the inner wall of the flexible pipe. Further, the plurality of the wrinkle parts are uniformly arranged along the circumference of the flexible tube. Further, the flexible pipe comprises an inner layer and an outer layer, wherein the inner layer is an ultra-high molecular weight polyethylene layer, and the outer layer is a high-elasticity composite layer. Further, the device also comprises a plurality of amplitude limiting frameworks, wherein the amplitude limiting frameworks are in one-to-one correspondence with the plurality of fold parts, and the amplitude limiting frameworks are all in spiral shapes and embedded in the corresponding fold parts. In a second aspect, an embodiment of the present invention provides a drainage system, including a flexible throttling disturbance assembly as described above, and further including a pulse water injection assembly, a water injection end of the pulse water injection assembly being in communication with the flexible pipe. Further, the device also comprises a control component, wherein the control component is used for detecting the pressure difference at two ends of the flexible pipe, the control component is connected with the pulse water injection component, and the control component controls the pulse water injection component to act according to the pressure difference. Further, the control assembly comprises a data acquisition module, a flow resistance analysis module and a pulse control module which are electrically connected in sequence, wherein the acquisition module is provided with an acquisition end for acquiring operation monitoring data in the flexible pipe, the flow resistance analysis module is used for analyzing the operation monitoring data and obtaining an analysis result, and the pulse control module is electrically connected with the pulse water injection assembly and is used for controlling the action of the pulse water injection assembly according t