Pulse type vortex ring desilting and descaling system

Abstract

The invention discloses a pulse type vortex ring desilting and descaling system which comprises a desilting and descaling object connected with a vortex ring generator and a pulse generator. The vortex ring generator accelerates water flow in the desilting and descaling object to form a vortex ring so as to stir sediments at the bottom of the desilting and descaling object; the pulse generator enables water flow in the desilting and descaling object to generate high-frequency hydraulic pulse, so that the vortex ring generated by the vortex ring generator is circularly pushed towards the desilting and descaling direction of the desilting and descaling object, and the vortex ring is circularly stirred and impacted on underwater sludge in the desilting and descaling object; the side, opposite to the vortex ring generator, of the desilting and descaling object is connected with a mud suction assembly, and the mud suction assembly discharges a mud-water mixture stirred in the desilting and descaling object out of the desilting and descaling object. The problems that in the prior art, pipelines are prone to being damaged, the construction difficulty is large, the cost is high, many potential safety hazards exist, and the dredging effect is difficult to guarantee are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline desilting, and in particular relates to a pulsed vortex ring desilting and descaling system. Background Art

[0002] At present, in the process of urban development, people will intentionally or unintentionally discard some construction waste such as cement mortar, terrazzo slurry, broken bricks, wood, etc. into the pipes, which will lead to pipe blockage, poor drainage, and difficulty in dredging. At the same time, the daily discharge of dirt and garbage, the damage of the pipes themselves, the long-term accumulation of mud and organic matter brought by rainwater. The pipes have not been cleaned for a long time, and fungi grow in the pipes, which will form blockages over time.

[0003] Underground pipelines are all located in built-up areas with many pedestrians and vehicles, which poses a safety hazard during the construction process. At the same time, the construction process will inevitably have a certain degree of impact on the surrounding environment. In traditional technologies, conventional dredging and descaling measures for underground pipelines can be roughly divided into two types, namely "physical dredging and descaling" and "chemical dredging and descaling". Although traditional dredging and descaling methods have solved the problem of underground pipeline siltation, there are still many problems in the actual dredging and descaling process. For example, physical dredging and descaling often requires manual commissioning and treatment, or the use of high-pressure machinery and other methods will more or less cause certain damage to existing pipelines. Chemical dredging and descaling has the risk of pollutant leakage. At the same time, traditional dredging and descaling methods not only occupy a large area, but also prolong the construction period, and the construction is difficult and costly, and there are many safety hazards. Summary of the invention

[0004] To this end, the present invention provides a pulsed vortex ring silt removal and descaling system to solve the problems of traditional technologies that are easy to damage pipelines, difficult and costly to construct, have many safety hazards, and are difficult to ensure silt removal effects.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a pulsed vortex ring desilting and descaling system, comprising a desilting and descaling object, the desilting and descaling object being connected to a vortex ring generator and a pulse generator; the vortex ring generator accelerates the water flow in the desilting and descaling object to form a vortex ring to stir the sediment at the bottom of the desilting and descaling object;

[0006] The pulse generator generates a high-frequency hydraulic pulse in the water flow in the desilting and descaling object, so as to propel the vortex ring cycle generated by the vortex ring generator toward the desilting and descaling direction of the desilting and descaling object, and to cause the vortex ring cycle to stir and impact the underwater silt in the desilting and descaling object;

[0007] The dredging and descaling object is connected to a mud suction assembly on the opposite side of the vortex ring generator, and the mud suction assembly discharges the mud-water mixture stirred in the dredging and descaling object to the outside of the dredging and descaling object.

[0008] As a preferred solution of the pulsed vortex ring desilting and descaling system, a nozzle is provided at the connection position between the vortex ring generator and the desilting and descaling object, and the vortex ring generator accelerates the water flow in the desilting and descaling object through the nozzle to form a vortex ring.

[0009] As a preferred solution of the pulsed vortex ring desilting and descaling system, the kinetic energy control formula of the vortex ring generated by the vortex ring generator is:

[0010]

[0011] Where E is the kinetic energy of the vortex ring, ρ is the water flow density in the dredging and descaling object, v is the water flow velocity in the dredging and descaling object, and A is the area of ​​the fluid surrounding the vortex ring.

[0012] As a preferred solution of the pulsed vortex ring silting and descaling system, the pulse generator includes a hydraulic drive device and a propulsion plate body, and the hydraulic drive device causes the water flow in the silting and descaling object to generate high-frequency hydraulic pulses through the propulsion plate body.

[0013] As a preferred solution of the pulsed vortex ring silt removal and scale removal system, it also includes a main control device, and the vortex ring generator and the pulse generator are electrically connected to the main control device, and the main control device is used to control the operation of the vortex ring generator and the pulse generator.

[0014] As a preferred solution of the pulsed vortex ring desilting and descaling system, the pulse function P(t) for controlling the pulse generator to generate a high-frequency hydraulic pulse in the water flow in the desilting and descaling object is:

[0015]

[0016] Where A is the pulse amplitude, T p is the pulse period, t w is the pulse width, t is the pulse generation time, and n is an integer.

[0017] As a preferred solution of the pulsed vortex ring dredging and descaling system, the pulse generator is located below the vortex ring generator, and the high-frequency hydraulic pulse generated by the water flow in the dredging and descaling object is below the vortex ring formed by the vortex ring generator to accelerate the water flow in the dredging and descaling object.

[0018] As a preferred solution of the pulsed vortex ring desilting and descaling system, the vortex ring generator accelerates the water flow in the desilting and descaling object to form a vortex ring, and the pulse generator causes the water flow in the desilting and descaling object to generate a high-frequency hydraulic pulse, and there is a synergistic relationship. The synergistic formula of the vortex ring and the high-frequency hydraulic pulse in the desilting and descaling object is:

[0019] tt p0 = k(tt v0 )

[0020]

[0021] Where, T v is the generation period of the vortex ring, t p0 is the starting time of the vortex ring, t v0 is the starting time of the high-frequency hydraulic pulse; k is the synergy coefficient between the vortex ring and the high-frequency hydraulic pulse; Indicates rounding down.

[0022] As a preferred solution of the pulsed vortex ring desilting and descaling system, the mud suction assembly includes a mud and water discharge pipeline and a mud discharge pump; the mud and water discharge pipeline is connected to the lower part of the desilting and descaling object, and the mud discharge pump is connected to the mud and water discharge pipeline;

[0023] The mud discharge pump is also electrically connected to the main control device, and the main control device is also used to control the working state of the mud discharge pump.

[0024] The present invention has the following advantages: the intensity and direction of pulses and vortex rings can be accurately controlled to ensure the accuracy and controllability of dredging operations; underwater silt in pipelines can be removed efficiently and accurately while minimizing the impact on the environment; it can be adjusted according to different silt types and dredging requirements and has strong adaptability; it does not require a large amount of manpower and cumbersome operations, and can achieve automated or semi-automated operations, greatly improving work efficiency; maintenance is relatively easy and the maintenance cost is low. At the same time, due to the high dredging efficiency, the number of dredging times can be reduced, further reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0026] Figure 1 It is a schematic diagram of a pulsed vortex ring silt removal and descaling system provided in an embodiment of the present invention.

[0027] In the figure, 1. dredging and descaling object; 2. vortex ring generator; 3. pulse generator; 4. mud suction component; 5. nozzle; 6. hydraulic drive equipment; 7. propulsion plate; 8. main control equipment; 9. mud and water discharge pipeline; 10. mud discharge pump. DETAILED DESCRIPTION

[0028] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1 The embodiment of the present invention provides a pulsed vortex ring desilting and descaling system, comprising a desilting and descaling object 1, the desilting and descaling object 1 is connected to a vortex ring generator 2 and a pulse generator 3; the vortex ring generator 2 accelerates the water flow in the desilting and descaling object 1 to form a vortex ring to stir the sediment at the bottom of the desilting and descaling object 1;

[0030] The pulse generator 3 generates a high-frequency hydraulic pulse in the water flow of the desilting and descaling object 1, so as to push the vortex ring generated by the vortex ring generator 2 in the desilting and descaling direction of the desilting and descaling object 1, and to make the vortex ring cycle stir and impact the underwater silt in the desilting and descaling object 1;

[0031] The dredging and descaling object 1 is connected with a mud suction assembly 4 on the opposite side of the vortex ring generator 2 , and the mud suction assembly 4 discharges the mud-water mixture stirred in the dredging and descaling object 1 to the outside of the dredging and descaling object 1 .

[0032] In this embodiment, a nozzle 5 is provided at the connection position between the vortex ring generator 2 and the desilting and descaling object 1, and the vortex ring generator 2 accelerates the water flow in the desilting and descaling object 1 through the nozzle 5 to form a vortex ring.

[0033] Specifically, the vortex ring generator 2 is one of the core components of the system, which accelerates the water flow and forms a vortex ring through the nozzle 5. The vortex ring is a ring-shaped vortex formed in the liquid. The formation of this structure is usually accompanied by the rotational motion of the fluid and the instability of the shear layer. The vortex ring generated by the vortex ring generator 2 has a strong stirring ability, thereby acting on the dredging and descaling object 1, such as scale and silt in the pipeline equipment, to stir up the sediment at the bottom.

[0034] Among them, the kinetic energy control formula of the vortex ring generated by the vortex ring generator 2 is:

[0035]

[0036] Wherein, E is the kinetic energy of the vortex ring, ρ is the water flow density in the dredging and descaling object 1, v is the water flow velocity in the dredging and descaling object 1, and A is the area of ​​the fluid surrounding the vortex ring.

[0037] In this embodiment, the pulse generator 3 includes a hydraulic drive device 6 and a propulsion plate 7 . The hydraulic drive device 6 causes the water flow in the desilting and descaling object 1 to generate high-frequency hydraulic pulses through the propulsion plate 7 .

[0038] Specifically, the pulse generator 3 drives the propulsion plate through the hydraulic drive device 6 to generate high-frequency hydraulic pulses. When these high-frequency hydraulic pulses propagate in the water, they will propel the vortex ring generated by the vortex ring generator 2 in the direction where silt removal and descaling are required, so that the vortex ring cycle stirs and impacts the underwater silt, breaking it up and suspending it.

[0039] Among them, the mud suction component 4 includes a mud and water discharge pipeline 9 and a mud discharge pump 10; the mud and water discharge pipeline 9 is connected to the lower part of the dredging and descaling object 1, and the mud discharge pump 10 is connected to the mud and water discharge pipeline 9. When the vortex ring generator 2 stirs the sediment so that all the sediments in the dredging and descaling object 1 are stirred and mixed in the water, the mud suction component 4 works synchronously to suck out the stirred mud and water mixture.

[0040] In this embodiment, a main control device 8 is also included, and the vortex ring generator 2 and the pulse generator 3 are electrically connected to the main control device 8, and the main control device 8 is used to control the operation of the vortex ring generator 2 and the pulse generator 3. The mud pump 10 is also electrically connected to the main control device 8, and the main control device 8 is also used to control the working state of the mud pump 10.

[0041] Specifically, the main control device 8 is responsible for the operation and monitoring of the entire system. It can adjust the working parameters of the pulse generator 3, the vortex ring generator 2 and the mud suction component 4 according to the actual operation requirements to ensure the coordinated work of the three. At the same time, the main control device 8 can also adjust the strength of the vortex ring and the speed of mud suction according to the dredging requirements to achieve the best dredging effect. The main control device 8 also has fault diagnosis and alarm functions to ensure the safety and reliability of the system operation.

[0042] In a possible embodiment, the pulse function P(t) of controlling the pulse generator 3 to make the water flow in the desilting and descaling object 1 generate a high-frequency hydraulic pulse is:

[0043]

[0044] Where A is the pulse amplitude, T p is the pulse period, t w is the pulse width, t is the pulse generation time, and n is an integer.

[0045] In a possible embodiment, the pulse generator 3 is located below the vortex ring generator 2, and the high-frequency hydraulic pulse generated by the water flow in the dredging and descaling object 1 is located below the vortex ring formed by the vortex ring generator 2 to accelerate the water flow in the dredging and descaling object 1. The vortex ring generator 2 accelerates the water flow in the dredging and descaling object 1 to form a vortex ring, and there is a synergistic relationship between the pulse generator 3 causing the water flow in the dredging and descaling object 1 to generate a high-frequency hydraulic pulse. The synergistic formula of the vortex ring in the dredging and descaling object 1 and the high-frequency hydraulic pulse is:

[0046] tt p0 = k(tt v0 )

[0047]

[0048] Where, T v is the generation period of the vortex ring, tp0 is the starting time of the vortex ring generation, t v0 is the starting time of the high-frequency hydraulic pulse; k is the synergy coefficient between the vortex ring and the high-frequency hydraulic pulse; Indicates rounding down.

[0049] The combined effect of hydraulic pulses and vortex rings can effectively break up and suspend underwater silt, and the dredging efficiency is much higher than that of traditional methods. The vortex ring has a strong stirring ability and can quickly stir up the bottom sediment and mix it with the water. The sludge suction equipment can suck out the mixture in time to avoid the sediment from settling again, so the dredging efficiency is high.

[0050] In summary, the present invention includes a dredging and descaling object 1, which is connected to a vortex ring generator 2 and a pulse generator 3; the vortex ring generator 2 accelerates the water flow in the dredging and descaling object 1 to form a vortex ring to stir the sediment at the bottom of the dredging and descaling object 1; the pulse generator 3 generates a high-frequency hydraulic pulse in the water flow in the dredging and descaling object 1 to push the vortex ring cycle generated by the vortex ring generator 2 in the direction of dredging and descaling of the dredging and descaling object 1, and makes the vortex ring cycle stir and impact the underwater silt in the dredging and descaling object 1; the dredging and descaling object 1 is connected to a mud suction component 4 on the opposite side of the vortex ring generator 2, and the mud suction component 4 discharges the mud-water mixture stirred in the dredging and descaling object 1 to the outside of the dredging and descaling object 1. The pulse generator 3 is located below the vortex ring generator 2, and the high-frequency hydraulic pulse generated by the water flow in the dredging and descaling object 1 is below the vortex ring formed by the vortex ring generator 2 to accelerate the water flow in the dredging and descaling object 1. The vortex ring generator 2 accelerates the water flow in the dredging and descaling object 1 to form a vortex ring, and has a synergistic relationship with the pulse generator 3 to generate high-frequency hydraulic pulses in the water flow in the dredging and descaling object 1. The present invention can effectively solve the problems of low efficiency and environmental pollution in traditional dredging and descaling methods, and provide a new solution for underwater dredging operations; the combined effect of hydraulic pulses and vortex rings can efficiently break and suspend underwater silt, and the dredging efficiency is much higher than that of traditional methods. The vortex ring has a strong stirring ability and can quickly stir the bottom sediment and fully mix it with the water body. The mud suction equipment can suck out the mixture in time to avoid the sediment from settling again, so the dredging efficiency is high; the intensity and direction of the pulse and vortex ring can be accurately controlled to ensure the accuracy and controllability of the dredging operation; compared with traditional dredging and descaling methods, it has less impact on the environment, does not require the use of chemical agents or large-scale mechanical operations, and reduces interference with water bodies and benthic organisms. In addition, due to the good desilting effect, it can reduce the pollution of sediments to water bodies and improve water quality; the operating cost is low, no large amount of noise and vibration will be generated during the work process, and the impact on the surrounding environment is small. It can operate in various complex environments, including deep water, shallow water, narrow waters, etc. In addition, the system can also be adjusted according to different silt types and desilting needs, and has strong adaptability. The operation is relatively simple, and does not require a lot of manpower and cumbersome operating procedures. Through the control system, automatic or semi-automatic operation can be achieved, which greatly improves the work efficiency; the main components are relatively simple in structure and relatively easy to maintain, so the maintenance cost is low. At the same time, due to the high desilting efficiency, the number of desilting times can be reduced, further reducing the maintenance cost.

[0051] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A pulsed vortex ring desilting and descaling system, characterized in that: The invention comprises a dredging and descaling object (1), wherein the dredging and descaling object (1) is connected to a vortex ring generator (2) and a pulse generator (3); the vortex ring generator (2) accelerates the water flow in the dredging and descaling object (1) to form a vortex ring to stir the sediment at the bottom of the dredging and descaling object (1); The pulse generator (3) generates high-frequency hydraulic pulses in the water flow in the desilting and descaling object (1), so as to propel the vortex ring generated by the vortex ring generator (2) in the desilting and descaling direction of the desilting and descaling object (1), and to cause the vortex ring to stir and impact the underwater silt in the desilting and descaling object (1); The dredging and descaling object (1) is connected to a mud suction assembly (4) on the opposite side of the vortex ring generator (2), and the mud suction assembly (4) discharges the mud and water mixture stirred in the dredging and descaling object (1) to the outside of the dredging and descaling object (1).

2. A pulsed vortex ring desilting and descaling system according to claim 1, characterized in that: A nozzle (5) is provided at the connection position between the vortex ring generator (2) and the desilting and descaling object (1), and the vortex ring generator (2) accelerates the water flow in the desilting and descaling object (1) through the nozzle (5) to form a vortex ring.

3. A pulsed vortex ring desilting and descaling system according to claim 2, characterized in that: The kinetic energy control formula of the vortex ring generated by the vortex ring generator (2) is: Where, E is the kinetic energy of the vortex ring, ρ is the water flow density in the dredging and descaling object (1), v is the water flow velocity in the dredging and descaling object (1), and A is the area of ​​the fluid surrounding the vortex ring.

4. The pulsed vortex ring desilting and descaling system according to claim 1 is characterized in that: The pulse generator (3) comprises a hydraulic drive device (6) and a propulsion plate (7), and the hydraulic drive device (6) causes the water flow in the desilting and descaling object (1) to generate high-frequency hydraulic pulses through the propulsion plate (7).

5. The pulsed vortex ring desilting and descaling system according to claim 1 is characterized in that: It also includes a main control device (8), the vortex ring generator (2) and the pulse generator (3) are electrically connected to the main control device (8), and the main control device (8) is used to control the operation of the vortex ring generator (2) and the pulse generator (3).

6. A pulsed vortex ring desilting and descaling system according to claim 4, characterized in that: The pulse function P(t) for controlling the pulse generator (3) to generate a high-frequency hydraulic pulse in the water flow in the desilting and descaling object (1) is: Where A is the pulse amplitude, T p is the pulse period, t w is the pulse width, t is the pulse generation time, and n is an integer.

7. A pulsed vortex ring desilting and descaling system according to claim 6, characterized in that: The pulse generator (3) is located below the vortex ring generator (2), and the high-frequency hydraulic pulse generated by the water flow in the dredging and descaling object (1) is located below the vortex ring formed by the vortex ring generator (2) accelerating the water flow in the dredging and descaling object (1).

8. The pulsed vortex ring desilting and descaling system according to claim 6, characterized in that: The vortex ring generator (2) accelerates the water flow in the desilting and descaling object (1) to form a vortex ring, and has a synergistic relationship with the pulse generator (3) that causes the water flow in the desilting and descaling object (1) to generate a high-frequency hydraulic pulse. The synergistic formula of the vortex ring and the high-frequency hydraulic pulse in the desilting and descaling object (1) is: t-t p0 =k(t-t v0 ) Where, T v is the generation period of the vortex ring, tp0 is the starting time of the vortex ring generation, t v0 is the starting time of high-frequency hydraulic pulse generation; k is the synergy coefficient between the vortex ring and the high-frequency hydraulic pulse; Indicates rounding down.

9. The pulsed vortex ring desilting and descaling system according to claim 5, characterized in that: The mud suction assembly (4) comprises a mud and water discharge pipeline (9) and a mud discharge pump (10); the mud and water discharge pipeline (9) is connected to the lower part of the desilting and descaling object (1), and the mud discharge pump (10) is connected to the mud and water discharge pipeline (9); The mud discharge pump (10) is also electrically connected to the main control device (8), and the main control device (8) is also used to control the working state of the mud discharge pump (10).

Images