CN113463710B - Pneumatic dredging pump equipment for deep water area and dynamic balance method - Google Patents
Pneumatic dredging pump equipment for deep water area and dynamic balance method Download PDFInfo
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- CN113463710B CN113463710B CN202110755896.4A CN202110755896A CN113463710B CN 113463710 B CN113463710 B CN 113463710B CN 202110755896 A CN202110755896 A CN 202110755896A CN 113463710 B CN113463710 B CN 113463710B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8858—Submerged units
- E02F3/8875—Submerged units pulled or pushed
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/902—Component parts, e.g. arrangement or adaptation of pumps for modifying the concentration of the dredged material, e.g. relief valves preventing the clogging of the suction pipe
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/905—Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
- E02F5/285—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with drag buckets or scraper plates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a device and a dynamic balance method for a pneumatic dredging pump in a deep water area, wherein the device comprises the pneumatic dredging pump and a traction ship, a frame on the pneumatic dredging pump is connected with a suspension arm at the stern of the traction ship through a first traction rope, four tank bodies are arranged in the frame, each tank body comprises a first tank body, a second tank body, a third tank body and a fourth tank body, the first tank body, the second tank body, the third tank body and the fourth tank body are distributed linearly or rectangularly, and the dynamic balance control of the pneumatic dredging pump is realized by controlling the tension of the first traction rope and the second traction rope. The invention is convenient to control the corresponding rope tension change according to the gravity change of each tank body, so that the pneumatic dredging pump achieves dynamic balance when continuously working, prevents the pneumatic dredging pump from inclining due to uneven stress and influencing dredging efficiency, not only can achieve dynamic balance when the pneumatic dredging pump continuously sucks and discharges sludge and prevent the pneumatic dredging pump from overturning, but also is beneficial to controlling the stable operation of the whole equipment.
Description
Technical Field
The invention relates to a pneumatic dredging pump device for a deep water area and a dynamic balance method.
Background
The dredging of deep water areas is generally carried out by blowing and stirring sludge at the bottom of a deposited water area into a turbid water shape through mechanical equipment and discharging the turbid water shape along with water flow, thereby playing a role in dredging.
When setting up 4 jar bodies in pneumatic desilting pump, light for a while, heavy for a while at the in-process of suction row silt, the gravity of the jar body is in the constantly changing state for whole pneumatic desilting pump atress is unbalanced, causes easily when carrying out the desilting to topple, influences normal desilting work.
Disclosure of Invention
The invention aims to provide a technical scheme of a pneumatic dredging pump device for a deep water area and a dynamic balance method aiming at the defects in the prior art, the four tank bodies are arranged in a central symmetry manner, so that the corresponding rope tension change can be conveniently controlled according to the gravity change of each tank body, the pneumatic dredging pump can achieve dynamic balance during continuous work, the pneumatic dredging pump is prevented from inclining due to uneven stress and affecting dredging efficiency, the dynamic balance method is simple in steps, the dynamic balance can be achieved when the pneumatic dredging pump continuously sucks and discharges sludge, the pneumatic dredging pump is prevented from overturning, the whole device can be controlled to stably run, the dredging efficiency is improved, and the service life is prolonged.
In order to solve the technical problem, the invention adopts the following technical scheme:
the utility model provides a pneumatic desilting pump in deep water is equipped which characterized in that: the pneumatic dredging pump comprises a pneumatic dredging pump and a traction ship, wherein a frame on the pneumatic dredging pump is connected with a suspension arm at the stern of the traction ship through a first traction rope, the first traction rope is connected with four right angles at the top of the frame through four ropes, four tank bodies are arranged in the frame, the tank bodies comprise a first tank body, a second tank body, a third tank body and a fourth tank body, the first tank body, the second tank body, the third tank body and the fourth tank body are linearly or rectangularly distributed, the tops of the first tank body, the second tank body, the third tank body and the fourth tank body are communicated through a shunt pipeline, the shunt pipeline is connected with a mud shoveling cover positioned at the front side of the frame through a mud sucking pipeline, lug plates on the mud shoveling cover are connected with the bow of the traction ship through the second traction rope, the bottoms of the first tank body, the second tank body, the third tank body and the fourth tank body are communicated through mud discharging pipes, the mud discharging pipes are connected with mud discharging pipes through collecting pipes, gas pipe connectors are arranged at the tops of the first tank body, the second tank body, the gas conveying pipe connectors are connected with the traction rope on the traction ship, and the traction rope, and the gas storage tank, so that the pull force of the pneumatic dredging pump is controlled, and the dynamic balance of the pneumatic dredging pump is realized; through setting up four jar of body centrosymmetries, be convenient for change the corresponding rope pulling force of control according to the gravity of each jar of body and change, make pneumatic desilting pump reach dynamic balance when continuous operation, prevent that pneumatic desilting pump from leading to the fact the slope because of the atress inequality, influence desilting efficiency, the haulage boat can drive whole pneumatic desilting pump through the second haulage rope and remove along the bottom in deep water area, improve desilting efficiency, can shovel the silt of bottom through the shovel mud cover, and inhale the jar internally through the reposition of redundant personnel pipeline through inhaling the mud pipeline, realize inhaling the mud, the atmospheric pressure in the effect control jar body of rethread gas holder, make the internal silt of jar pass through the mud pipe and input the mud pipe through the collecting pipe, and export silt in succession, this structure not only can realize the effect of inhaling row of silt through the continuous variation of the internal atmospheric pressure of jar, and can realize the linkage through the time difference with a plurality of jar, guarantee that whole pneumatic desilting pump system carries out the row of inhaling to silt in succession, the clearance efficiency of silt has improved greatly, can effectively avoid producing the pipeline jam simultaneously, the life of extension desilting pump system.
Further, when the first tank body, the second tank body, the third tank body and the fourth tank body are linearly distributed, the first tank body and the second tank body are located on two sides, the third tank body and the fourth tank body are located between the first tank body and the second tank body, the third tank body is close to the second tank body, the fourth tank body is close to the first tank body, when the four tank bodies are linearly distributed, the above sequence arrangement is adopted, the influence on the whole pneumatic dredging pump when the gravity of each tank body changes can be reduced, the inclination amplitude of the pneumatic dredging pump caused by stress change is reduced, and the dynamic balance effect of the whole pneumatic dredging pump is improved.
Further, when the first jar of body, the second jar of body, the third jar of body and the fourth jar of body are the rectangle and distribute, the diagonal setting along the rectangle of the first jar of body and the second jar of body, the diagonal setting along the rectangle of the third jar of body and the fourth jar of body, when four jar of bodies are the rectangle and distribute, adopt and excrete according to the order of diagonal, can reduce the influence to whole pneumatic desilting pump when each jar of body gravity changes, reduce the slope range that pneumatic desilting pump arouses because of the atress changes, improve the dynamic balance effect of whole pneumatic desilting pump.
Further, be provided with first check valve on the reposition of redundant personnel pipeline, first check valve can effectively prevent to cause the internal silt of jar to flow back to shovel mud to cover when jar internal gas pressure changes, is provided with the second check valve on the mud pipe, and the second check valve can prevent that exhaust silt from flowing back to jar internal.
Further, the bottom of shovel mud cover is provided with the spiller, and the import department of shovel mud cover is provided with the filtration grid, and the spiller can shovel the silt of bottom, improves and inhales mud efficiency, and the filtration grid can block the great stone of particle diameter, prevents to cause the jam to the pipeline.
Further, be provided with liquid level detection meter and liquid level alarm on the jar body, liquid level detection meter is used for surveying the height of jar internal liquid level, and after the liquid level exceeded and sets for the threshold value, liquid level alarm can play the alarming action, guarantees the stable continuous work of whole pneumatic desilting pump system.
Further, the gas transmission pipeline comprises a compressed air pipe, a gas discharge pipe and a vacuum pipe, the first tank body, the second tank body, the third tank body and the fourth tank body are communicated with a compressed air tank in the gas storage tank through the compressed air pipe, the first tank body, the second tank body, the third tank body and the fourth tank body are communicated with a vacuum tank in the gas storage tank through the gas discharge pipe and the vacuum pipe, control valves are arranged on the compressed air pipe, the gas discharge pipe and the vacuum pipe, through the design of the compressed air pipe, the gas discharge pipe and the vacuum pipe, the control of the air pressure in the tank body can be achieved, the suction and discharge requirements of the tank body on sludge can be met, the control valves are pneumatic control valves or electric control valves, the control valves are installed on a traction ship, and maintenance and control are facilitated.
Further, be provided with the flotation pontoon on the mud discharging pipeline, the flotation pontoon passes through the stern that the third haulage rope is connected the towboat, and the third haulage rope has improved the connection stability of flotation pontoon between the towboat, further can improve mud discharging pipeline connection's stability, guarantees that the mud discharging goes on smoothly.
The dynamic balance method of the deep water pneumatic dredging pump equipment is characterized by comprising the following steps of:
1) Firstly, a pneumatic dredging pump is placed into the deep water area through a first traction rope and a second traction rope on a traction ship, so that the pneumatic dredging pump sinks to the bottom of the deep water area;
2) Then, the first tank body starts to suck mud, the gravity of the first tank body is gradually increased along with the increase of the mud in the first tank body, so that the first tank body moves downwards, the second tank body tilts upwards, the rope tension close to one side of the first tank body is increased, the rope tension close to one side of the second tank body is reduced, and the stress balance of the whole pneumatic dredging pump is ensured;
3) When the first tank body is accelerated to suck mud, the second tank body starts to suck mud, the rope tension close to one side of the second tank body is gradually increased along with the increase of the gravity of the second tank body, when the time T1 is reached, the liquid level is kept unchanged as the liquid level in the first tank body reaches a set height position, a negative pressure state is formed above the liquid level of the first tank body in the process, compressed air is injected into the first tank body through a compressed air pipe to offset the negative pressure, the offset time of the negative pressure is T1-T2, the rope tension close to one side of the first tank body is kept unchanged, the second tank body continuously and quickly sucks mud, and the rope tension on the corresponding side of the second tank body is gradually increased along with the increase of the gravity of the second tank body;
4) When the time T2 is reached, the third tank starts to suck mud, the rope tension close to one side of the third tank is gradually increased along with the increase of the gravity of the third tank, when the second tank continues to suck mud at an accelerated speed until the liquid level in the second tank reaches a set height position, the rope tension close to one side of the second tank is also increased along with the increase of the rope tension until the tension reaches the maximum value, the first tank starts to discharge sludge, and the rope tension close to one side of the first tank is also gradually reduced along with the reduction of the gravity of the first tank;
5) When the liquid level in the second tank body reaches a set height position, the liquid level is kept unchanged, a negative pressure state is formed above the liquid level of the second tank body in the process, compressed air is injected into the second tank body through a compressed air pipe, the negative pressure of the compressed air is offset, the rope tension close to one side of the second tank body is kept unchanged, when the negative pressure in the second tank body is completely offset, sludge begins to be discharged until time T3 is reached, the tension close to one side of the second tank body is gradually reduced along with the reduction of the gravity of the second tank body, the first tank body continues to discharge the sludge until the sludge is finished, the rope tension at the corresponding side is gradually reduced simultaneously, the third tank body continues to suck the sludge, the rope tension at the corresponding side is gradually increased along with the increase of the gravity of the third tank body, the fourth tank body begins to suck the sludge at the moment, and the rope tension close to one side of the fourth tank body is gradually increased along with the increase of the gravity of the fourth tank body;
6) From time T3, compressed air is filled in the first tank body, the compressed air is deflated through the deflation pipe, the first tank body starts to suck mud again after time T4 is reached, in the process, the gravity of the first tank body is unchanged, the rope tension close to one side of the first tank body is unchanged, the second tank body continues to discharge mud, the rope tension on the corresponding side is gradually reduced along with the reduction of the gravity of the second tank body, the liquid level in the third tank body reaches a set height position and is kept unchanged, in the process, the negative pressure state is formed above the liquid level of the third tank body, compressed air is filled into the third tank body through a compressed air pipe, the negative pressure is counteracted, the rope tension close to one side of the third tank body is kept unchanged, the fourth tank body continues to accelerate mud suction, and the rope tension close to one side of the fourth tank body is gradually increased along with the increase of the gravity of the fourth tank body;
7) The sludge suction and discharge processes of the four tanks are circulated, so that the continuous suction and discharge of the sludge are realized, and the pneumatic dredging pump achieves dynamic balance.
The dynamic balance method has simple steps, can achieve dynamic balance when the pneumatic dredging pump continuously sucks and discharges the sludge, prevents the pneumatic dredging pump from overturning, is favorable for controlling the whole equipment to stably operate, improves the dredging efficiency and prolongs the service life.
Further, the time from 0 to T1 is from 10 to 15S, the time from T1 to T2 is from 3 to 5S, and the time from T2 to T3 is from 7 to 10S.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. through setting up four jar of body centrosymmetries, be convenient for change the corresponding rope pulling force of control change according to the gravity of each jar of body, make pneumatic desilting pump reach dynamic balance when continuous operation, prevent that pneumatic desilting pump from leading to the fact the slope because of the atress inequality, influence desilting efficiency.
2. The tow boat passes through the second haulage rope and can drive whole pneumatic desilting pump and remove along the bottom in deep water area, improves the efficiency of desilting, can shovel the silt of bottom through shovel mud cover to it is internal through inhaling the mud pipeline and inhaling the jar through the reposition of redundant personnel pipeline, realize inhaling mud, the internal atmospheric pressure of effect control jar of rethread gas holder makes the internal silt of jar pass through the mud pipe and imports the mud pipe way through the collecting pipe, and exports silt in succession.
3. This structure not only can realize the suction and discharge effect to silt through the continuous variation of jar internal gas pressure, can realize the linkage through the time difference with a plurality of jar bodies moreover, guarantees that whole pneumatic desilting pump system carries out suction and discharge in succession to silt, has improved the cleaning efficiency of silt greatly, can effectively avoid producing the pipeline simultaneously and block up, prolongs the life of desilting pump system.
4. The dynamic balance method has simple steps, can achieve dynamic balance when the pneumatic dredging pump continuously sucks and discharges the sludge, prevents the pneumatic dredging pump from overturning, is favorable for controlling the whole equipment to stably operate, improves the dredging efficiency and prolongs the service life.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of a pneumatic dredging pump device in a deep water area and a dynamic balancing method according to the present invention;
FIG. 2 is an effect diagram of the lifting of the pneumatic dredging pump in the invention;
FIG. 3 is a schematic structural view of the pneumatic desilting pump of the present invention;
FIG. 4 is a working block diagram of the pneumatic desilting pump of the present invention;
FIG. 5 is a graph of liquid level height and time for each tank of the present invention;
FIG. 6 is a schematic distribution diagram of the first, second, third and fourth tanks of the present invention.
In the figure: 1-a pneumatic desilting pump; 2-towing the ship; 3-a suspension arm; 4-a first pull cord; 5-a second traction rope; 6-air storage tank; 7-a gas pipeline; 8-a sludge discharge pipeline; 9-a buoy; 10-a third hauling cable; 11-a frame; 12-a tank body; 13-a shunt conduit; 14-a mud suction pipeline; 15-a mud shoveling cover; 16-ear plate; 17-a scraper knife; 18-a filtration grid; 19-a mud pipe; 20-a collector pipe; 21-a first check valve; 22-a second check valve; 23-gas transmission pipe interface; 24-a liquid level detector; 25-liquid level alarm; 26-a first tank; 27-a second tank; 28-a third tank; 29-a fourth tank; 30-compressed air pipe; 31-a gas release pipe; 32-vacuum tube; 33-a control valve; 34-a vacuum tank; 35-compressed air tank.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
As shown in fig. 1 to 6, the equipment for the deep water pneumatic dredging pump comprises a pneumatic dredging pump 1 and a towing boat 2, wherein a frame 11 on the pneumatic dredging pump 1 is connected with a suspension arm 3 at the stern of the towing boat 2 through a first towing rope 4, the first towing rope 4 is connected with four right angles at the top of the frame 11 through four ropes, four tank bodies 12 are arranged in the frame 11, a liquid level detector 24 and a liquid level alarm 25 are arranged on the tank bodies 12, the liquid level detector 24 is used for detecting the height of liquid level in the tank bodies 12, and when the liquid level exceeds a set threshold value, the liquid level alarm 25 can play a role of alarming, so that the stable and continuous operation of the whole pneumatic dredging pump 1 system is ensured. The tank 12 comprises a first tank 26, a second tank 27, a third tank 28 and a fourth tank 29, wherein the first tank 26, the second tank 27, the third tank 28 and the fourth tank 29 are linearly distributed or rectangularly distributed.
When the first tank 26, the second tank 27, the third tank 28 and the fourth tank 29 are linearly distributed, the first tank 26 and the second tank 27 are positioned at two sides, the third tank 28 and the fourth tank 29 are positioned between the first tank 26 and the second tank 27, the third tank 28 is close to the second tank 27, and the fourth tank 29 is close to the first tank 26, when the four tanks 12 are linearly distributed, the above sequence arrangement is adopted, so that the influence of the gravity change of each tank 12 on the whole pneumatic desilting pump 1 can be reduced, the inclination amplitude of the pneumatic desilting pump 1 caused by the stress change can be reduced, and the dynamic balance effect of the whole pneumatic desilting pump 1 can be improved.
When the first tank 26, the second tank 27, the third tank 28 and the fourth tank 29 are distributed in a rectangular shape, the first tank 26 and the second tank 27 are arranged along a diagonal line of the rectangular shape, the third tank 28 and the fourth tank 29 are arranged along a diagonal line of the rectangular shape, when the four tanks 12 are distributed in a rectangular shape, the four tanks are discharged in a diagonal line sequence, so that the influence on the whole pneumatic dredging pump 1 caused by the gravity change of each tank 12 can be reduced, the inclination amplitude of the pneumatic dredging pump 1 caused by the stress change is reduced, and the dynamic balance effect of the whole pneumatic dredging pump 1 is improved.
The tops of the first tank 26, the second tank 27, the third tank 28 and the fourth tank 29 are communicated through a diversion pipeline 13, the diversion pipeline 13 is provided with a first check valve 21, the first check valve 21 can effectively prevent sludge in the tank 12 from flowing back to the mud shoveling cover 15 when the air pressure in the tank 12 changes, the mud discharging pipe 19 is provided with a second check valve 22, and the second check valve 22 can prevent discharged sludge from flowing back to the tank 12.
The bottoms of the first tank body 26, the second tank body 27, the third tank body 28 and the fourth tank body 29 are communicated through a sludge discharge pipe 19, the sludge discharge pipe 19 is connected with a sludge discharge pipeline 8 through a collecting pipe 20, the tops of the first tank body 26, the second tank body 27, the third tank body 28 and the fourth tank body 29 are all provided with an air pipe connector 23, the air pipe connector 23 is connected with an air storage tank 6 on a traction ship 2 through an air pipe 7, the dynamic balance control of the pneumatic desilting pump 1 is realized by controlling the pulling force of a first traction rope 4 and a second traction rope 5, the air pipe 7 comprises a compressed air pipe 30, an air discharge pipe 31 and a vacuum pipe 32, the first tank 26, the second tank 27, the third tank 28 and the fourth tank 29 are all communicated with a compressed air tank 35 in the air storage tank 6 through a compressed air pipe 30, the first tank 26, the second tank 27, the third tank 28 and the fourth tank 29 are communicated with a vacuum tank 34 in the air storage tank 6 through an air discharge pipe 31 and a vacuum pipe 32, control valves 33 are arranged on the compressed air pipe 30, the air discharge pipe 31 and the vacuum pipe 32, through the design of the compressed air pipe 30, the air discharge pipe 31 and the vacuum pipe 32, the air pressure in the tank 12 can be controlled, the suction and discharge requirements of the tank 12 on sludge are met, the control valves 33 are pneumatic control valves 33 or electric control valves 33 and are installed on the towing vessel 2, and maintenance and control are facilitated. The four tanks 12 are arranged in central symmetry, so that the corresponding rope tension change can be controlled according to the gravity change of each tank 12, the pneumatic dredging pump 1 is enabled to achieve dynamic balance during continuous operation, the pneumatic dredging pump 1 is prevented from being inclined due to uneven stress, the dredging efficiency is influenced, the traction ship 2 can drive the whole pneumatic dredging pump 1 to move along the bottom of a deep water area through the second traction rope 5, the dredging efficiency is improved, the sludge at the bottom can be shoveled through the shoveling cover 15 and sucked into the tanks 12 through the flow dividing pipeline 13 through the sludge sucking pipeline 14, sludge sucking is realized, the air pressure in the tanks 12 is controlled through the action of the air storage tank 6, the sludge in the tanks 12 is input into the sludge discharging pipeline 8 through the sludge discharging pipe 19, the sludge is continuously output, the sludge sucking and discharging effects on the sludge can be realized through the continuous change of the air pressure in the tanks 12, the linkage of the tanks 12 can be realized through time difference, the whole pneumatic dredging pump 1 system is ensured to continuously suck and discharge the sludge, the sludge cleaning efficiency is greatly improved, and the service life of the dredging pump system can be effectively avoided from being blocked.
Be provided with flotation pontoon 9 on mud discharging pipe 8, flotation pontoon 9 connects the stern of towboat 2 through third haulage rope 10, and third haulage rope 10 has improved the connection stability of flotation pontoon 9 between towboat 2, further can improve the stability that mud discharging pipe 8 connects, guarantees that mud discharging goes on smoothly.
The operation postures of the first tank 26, the second tank 27, the third tank 28 and the fourth tank 29 are shown as corresponding coordinate axes in fig. 5, wherein the start and stop time of suction and discharge of the first tank 26, the second tank 27, the third tank 28 and the fourth tank 29 is shown as a coordinate axis in fig. 5, the abscissa X represents time, the ordinate Y represents liquid level height, the operation posture of the second tank 27 is staggered from the operation posture of the first tank 26 by a time angle, the operation posture of the third tank 28 is staggered from the operation posture of the second tank 27 by a time angle, and the operation posture of the fourth tank 29 is staggered from the operation posture of the third tank 28 by a time angle, so that continuous suction and discharge of the whole pneumatic desilting pump 1 system are realized.
The dynamic balance method of the deep water pneumatic dredging pump equipment comprises the following steps:
1) Firstly, the pneumatic dredging pump 1 is put into a deep water area through a first traction rope 4 and a second traction rope 5 on a traction ship 2, so that the pneumatic dredging pump 1 sinks to the bottom of the deep water area;
2) Then, the first tank 26 starts to suck mud, and along with the increase of the mud in the first tank 26, the gravity of the first tank 26 is gradually increased, so that the first tank 26 moves downwards, the second tank 27 tilts upwards, the rope tension close to one side of the first tank 26 is increased, and the rope tension close to one side of the second tank 27 is reduced, so that the stress balance of the whole pneumatic dredging pump 1 is ensured;
when the first tank 26 sucks the sludge, the control valve 33 on the air release pipe 31 connected with the first tank 26 is opened firstly, the compressed air in the first tank 26 is subjected to air release treatment, the first tank 26 is vacuumized through the vacuum pipe 32 after air release, at the moment, the sludge is pressed into the first tank 26 by external water pressure, and due to the fact that atmospheric pressure exists in the first tank 26, when negative pressure is formed in the first tank 26, the sludge sucking speed is accelerated;
3) When the first tank 26 sucks the mud in an accelerating way, the second tank 27 starts sucking the mud, at the moment, the rope tension close to one side of the second tank 27 is gradually increased along with the increase of the gravity of the second tank 27, when the time T1 is reached, the liquid level is kept unchanged as the liquid level in the first tank 26 reaches the set height position, in the process, the upper part of the liquid level of the first tank 26 is in a negative pressure state, compressed air is injected into the first tank 26 through a compressed air pipe 30 to offset the negative pressure, the offset time of the negative pressure is T1-T2, the rope tension close to one side of the first tank 26 is kept unchanged, the second tank 27 continues sucking the mud in a rapid way, and the rope tension at the corresponding side of the second tank 27 is gradually increased along with the increase of the gravity of the second tank 27;
when the second tank 27 sucks mud, a control valve 33 on an air discharge pipe 31 connected with the second tank 27 is opened, compressed air in the second tank 27 is discharged, the second tank 27 is vacuumized through a vacuum pipe 32 after the discharge of the air, at the moment, the mud is pressed into the second tank 27 by external water pressure, due to the fact that atmospheric pressure exists in the second tank 27, after negative pressure is formed in the second tank 27, the mud sucking speed is accelerated, when time T1 is reached, the first tank 26 reaches a set liquid level height, the liquid level is kept unchanged, in the process, the negative pressure state is above the liquid level of the first tank 26, compressed air is injected into the first tank 26 through a compressed air pipe 30 to offset the negative pressure, the time for offsetting the negative pressure is T1-T2, and in the process, the second tank 27 continues to suck the mud quickly;
4) When the time T2 is reached, the third tank 28 starts to suck mud, the rope tension close to one side of the third tank 28 is gradually increased along with the increase of the gravity of the third tank 28, when the second tank 27 continues to accelerate to suck mud until the liquid level in the second tank 27 reaches a set height position, the rope tension close to one side of the second tank 27 is also increased along with the process until the tension reaches the maximum value, the first tank 26 starts to discharge mud, and the rope tension close to one side of the first tank 26 is also gradually reduced along with the decrease of the gravity of the first tank 26;
when the third tank 28 sucks mud, a control valve 33 on an air discharging pipe 31 connected with the third tank 28 is opened, compressed air in the third tank 28 is discharged, the third tank 28 is vacuumized through a vacuum pipe 32 after the air discharge, at the moment, external water pressure presses the mud into the third tank 28, due to the fact that atmospheric pressure exists in the third tank 28, when negative pressure is formed in the third tank 28, mud sucking speed starts to be accelerated, at the moment, the first tank 26 discharges the mud, the pressure in the discharging process is stable, the mud sucking process of the second tank 27 is finished, the second tank 27 reaches a set liquid level height, the liquid level keeps unchanged, in the process, a negative pressure state is formed above the liquid level of the second tank 27, compressed air is injected into the second tank 27 through a compressed air pipe 30 to offset the negative pressure until the second tank 27 reaches a mud discharging state, and when the second tank 27 starts to discharge the mud, the third tank 28 accelerates mud sucking;
5) When the liquid level in the second tank 27 reaches a set height position, the liquid level is kept unchanged, in the process, a negative pressure state is formed above the liquid level of the second tank 27, compressed air is injected into the second tank 27 through a compressed air pipe 30, the negative pressure of the compressed air is counteracted, the rope tension on one side close to the second tank 27 is kept unchanged, when the negative pressure in the second tank 27 is completely counteracted, sludge begins to be discharged until time T3 is reached, the tension on one side close to the second tank 27 is gradually reduced along with the reduction of the gravity of the second tank 27, the first tank 26 continues to discharge the sludge until the end, the rope tension on the corresponding side is gradually reduced, the third tank 28 continues to suck the sludge, the rope tension on the corresponding side is gradually increased along with the increase of the gravity of the third tank 28, at the moment, the fourth tank 29 begins to suck the sludge, and the rope tension on one side close to the fourth tank 29 is gradually increased along with the increase of the gravity of the fourth tank 29;
when the time T3 is reached, the fourth tank 29 starts to suck mud, a control valve 33 on an air release pipe 31 connected with the fourth tank 29 is opened, compressed air in the fourth tank 29 is subjected to air release treatment, the fourth tank 29 is vacuumized through a vacuum pipe 32 after air release, the mud is pressed into the fourth tank 29 by external water pressure, due to the fact that atmospheric pressure exists in the fourth tank 29, the mud suction speed is accelerated after negative pressure is formed in the fourth tank 29, at the moment, compressed air is in the first tank 26, air release treatment is performed on the compressed air through the air release pipe 31, after the time T4 is reached, the first tank 26 starts to suck mud again, in the process, the second tank 27 continues to discharge the mud, the third tank 28 reaches a set liquid level height, compressed air is injected into the third tank 28 through the compressed air pipe 30 for offsetting the negative pressure, the fourth tank 29 accelerates the mud suction, and each tank 12 takes a time period of 0-T4 as a tank 12 suction and discharge period T;
6) From time T3, compressed air is filled in the first tank 26, the compressed air is deflated through the deflation pipe 31, the first tank 26 starts to suck mud again after time T4 is reached, in the process, the gravity of the first tank 26 is unchanged, the rope tension on the side close to the first tank 26 is unchanged, the second tank 27 continues to discharge mud, the rope tension on the corresponding side is gradually reduced along with the reduction of the gravity of the second tank 27, the liquid level in the third tank 28 reaches the set height position and keeps unchanged, in the process, the upper part of the liquid level of the third tank 28 is in a negative pressure state, compressed air is filled into the third tank 28 through the compressed air pipe 30, the negative pressure is counteracted, the rope tension on the side close to the third tank 28 is kept unchanged, the fourth tank 29 continues to accelerate mud suction, and the rope tension on the side close to the fourth tank 29 is gradually increased along with the increase of the gravity of the fourth tank 29; the time from 0 to T1 is 10 to 15S, the time from T1 to T2 is 3 to 5S, and the time from T2 to T3 is 7 to 10S.
7) And circulating the sludge suction and discharge processes of the four tank bodies 12 to realize continuous suction and discharge of sludge, so that the pneumatic dredging pump 1 achieves dynamic balance.
The dynamic balance method has simple steps, can achieve dynamic balance when the pneumatic dredging pump 1 continuously sucks and discharges the sludge, prevents the pneumatic dredging pump 1 from overturning, is favorable for controlling the whole equipment to stably operate, improves the dredging efficiency and prolongs the service life.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are all covered by the scope of the present invention.
Claims (9)
1. A dynamic balance method of a deep water pneumatic dredging pump device is characterized in that: the pneumatic dredging pump equipment comprises a pneumatic dredging pump and a traction ship, a frame on the pneumatic dredging pump is connected with a suspension arm at the stern of the traction ship through a first traction rope, the first traction rope is connected with four right angles at the top of the frame through four ropes, four tank bodies are installed in the frame, the tank bodies comprise a first tank body, a second tank body, a third tank body and a fourth tank body, the first tank body, the second tank body, the third tank body and the fourth tank body are linearly or rectangularly distributed, the first tank body, the second tank body, the third tank body and the top of the fourth tank body are communicated through a shunt pipeline, the shunt pipeline is connected with a mud shoveling cover positioned at the front side of the frame through a mud sucking pipeline, an ear plate on the mud shoveling cover is connected with a ship head of the traction ship through a second traction rope, the first tank body, the second tank body, the third tank body and the bottom of the fourth tank body are communicated through mud discharging pipes, the mud discharging pipes are connected with the mud discharging pipes through pulling force, the first tank body, the second tank body, the third tank body and the fourth tank body are connected with a gas storage tank through a pulling force control pipe, and a dynamic control connector of the traction rope, and the gas pipe are arranged on the top of the first tank, and the traction rope, and the traction pipe, and the gas delivery pipe are connected with the control connector, and the dynamic control connector of the pneumatic dredging pump; the method comprises the following steps:
1) Firstly, a pneumatic dredging pump is placed into a deep water area through a first traction rope and a second traction rope on a traction ship, so that the pneumatic dredging pump sinks to the bottom of the deep water area;
2) Then, the first tank body starts to suck mud, the gravity of the first tank body is gradually increased along with the increase of the mud in the first tank body, so that the first tank body moves downwards, the second tank body tilts upwards, the rope tension close to one side of the first tank body is increased, the rope tension close to one side of the second tank body is reduced, and the stress balance of the whole pneumatic dredging pump is ensured;
3) When the first tank body is accelerated to suck mud, the second tank body starts to suck mud, the rope tension close to one side of the second tank body is gradually increased along with the increase of the gravity of the second tank body, when the time T1 is reached, the liquid level is kept unchanged as the liquid level in the first tank body reaches a set height position, a negative pressure state is formed above the liquid level of the first tank body in the process, compressed air is injected into the first tank body through a compressed air pipe to offset the negative pressure, the offset time of the negative pressure is T1-T2, the rope tension close to one side of the first tank body is kept unchanged, the second tank body continuously and quickly sucks mud, and the rope tension on the corresponding side of the second tank body is gradually increased along with the increase of the gravity of the second tank body;
4) When the time T2 is reached, the third tank starts to suck mud, the rope tension close to one side of the third tank is gradually increased along with the increase of the gravity of the third tank, when the second tank continues to suck mud at an accelerated speed until the liquid level in the second tank reaches a set height position, the rope tension close to one side of the second tank is also increased along with the process until the tension reaches the maximum value, the first tank starts to discharge mud, and the rope tension close to one side of the first tank is also gradually reduced along with the reduction of the gravity of the first tank;
5) When the liquid level in the second tank body reaches a set height position, the liquid level is kept unchanged, a negative pressure state is formed above the liquid level of the second tank body in the process, compressed air is injected into the second tank body through a compressed air pipe, the negative pressure is counteracted, the rope tension close to one side of the second tank body is kept unchanged, when the negative pressure in the second tank body is completely counteracted, sludge begins to be discharged until time T3 is reached, the tension close to one side of the second tank body is gradually reduced along with the reduction of the gravity of the second tank body, the first tank body continues to discharge the sludge until the end, the rope tension at the corresponding side is gradually reduced, the third tank body continues to suck the sludge, the rope tension at the corresponding side is gradually increased along with the increase of the gravity of the third tank body, the fourth tank body begins to suck the sludge at the moment, and the rope tension close to one side of the fourth tank body is gradually increased along with the increase of the gravity of the fourth tank body;
6) From time T3, compressed air is filled in the first tank body, the compressed air is subjected to air discharge treatment through an air discharge pipe, the first tank body starts to suck mud again after time T4 is reached, in the process, the gravity of the first tank body is unchanged, the rope tension close to one side of the first tank body is unchanged, the second tank body continues to discharge mud, the rope tension at the corresponding side is gradually reduced along with the reduction of the gravity of the second tank body, the liquid level in the third tank body reaches a set height position, the liquid level is kept unchanged, in the process, a negative pressure state is formed above the liquid level of the third tank body, compressed air is filled into the third tank body through a compressed air pipe, the negative pressure is counteracted, the rope tension close to one side of the third tank body is kept unchanged, the fourth tank body continues to accelerate mud suction, and the rope tension close to one side of the fourth tank body is gradually increased along with the increase of the gravity of the fourth tank body;
7) And circulating the sludge suction and discharge process of the four tanks to realize continuous suction and discharge of sludge, so that the pneumatic dredging pump achieves dynamic balance.
2. The dynamic balancing method of the deep water pneumatic dredging pump equipment of claim 1, wherein: when the first tank body, the second tank body, the third tank body and the fourth tank body are linearly distributed, the first tank body and the second tank body are positioned on two sides, the third tank body and the fourth tank body are positioned between the first tank body and the second tank body, the third tank body is close to the second tank body, and the fourth tank body is close to the first tank body.
3. The dynamic balancing method of the deep water pneumatic dredging pump equipment of claim 1, wherein: the first jar of body the second jar of body the third jar of body with when the fourth jar of body is the rectangle and distributes, the first jar of body with the second jar of body is followed the diagonal setting of rectangle, the third jar of body with the fourth jar of body is followed the diagonal setting of rectangle.
4. The dynamic balancing method for the deep water pneumatic dredging pump equipment according to claim 1, characterized in that: the branch pipeline is provided with a first check valve, and the mud pipe is provided with a second check valve.
5. The dynamic balancing method of the deep water pneumatic dredging pump equipment of claim 1, wherein: the bottom of the mud shoveling cover is provided with a shovel blade, and the inlet of the mud shoveling cover is provided with a filtering grid.
6. The dynamic balancing method of the deep water pneumatic dredging pump equipment of claim 1, wherein: the tank body is provided with a liquid level detector and a liquid level alarm.
7. The dynamic balancing method of the deep water pneumatic dredging pump equipment of claim 1, wherein: the gas transmission pipeline comprises a compressed air pipe, a gas release pipe and a vacuum pipe, the first tank body, the second tank body, the third tank body and the fourth tank body are communicated with the compressed air tank in the gas storage tank through the compressed air pipe, the first tank body, the second tank body, the third tank body and the fourth tank body are communicated with the vacuum tank in the gas storage tank through the gas release pipe and the vacuum pipe, and the compressed air pipe, the gas release pipe and the vacuum pipe are all provided with control valves.
8. The dynamic balancing method of the deep water pneumatic dredging pump equipment of claim 1, wherein: the mud discharging pipeline is provided with a buoy, and the buoy is connected with the stern of the towboat through a third towline.
9. The dynamic balancing method for the deep water pneumatic dredging pump equipment according to claim 1, characterized in that: the time period from 0 to T1 is 10 to 15S, the time period from T1 to T2 is 3 to 5S, and the time period from T2 to T3 is 7 to 10S.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| NL162162C (en) * | 1968-06-17 | 1980-04-15 | Faldi Giovanni | DREDGING PLANT INCLUDING A VESSEL AND AN EXCAVATOR WITH A PUMPING DEVICE. |
| JPS57205635A (en) * | 1981-06-10 | 1982-12-16 | Wakachiku Kensetsu Kk | Dredging work and water jetting device therefor |
| CN2323167Y (en) * | 1997-11-14 | 1999-06-09 | 江阴市水利农机实业集团公司 | Dredge pump |
| CN103523701B (en) * | 2013-10-28 | 2016-04-13 | 北京南车时代机车车辆机械有限公司 | Multireel raises synchronous control method and control system |
| CN204098114U (en) * | 2014-09-22 | 2015-01-14 | 成都通威自动化设备有限公司 | A kind of miniature floating vessel type dredger |
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