CN1130229A

CN1130229A - Abyssal inversely hanging water turbine pump mud and sand dredging boat

Info

Publication number: CN1130229A
Application number: CN 95100942
Authority: CN
Inventors: 肖冠英
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-02
Filing date: 1995-03-02
Publication date: 1996-09-04

Abstract

The invented method is that on the boat a centrifugal pump driven by diesel engine is installed, the high pressure water delivered from the pump is sent via rubber tube to the water turbine pump inversely hung to the bottom of the abyss, it is mixed flow type turbine and bailer integrating assembled water pump driven by therotation of the water turbine operated by the high pressure water, the suction inlet is faced toward the silt on the bottom of river or sea to suck and send the mud through the pipeline to the barge on the water surface to carry away or through the flocting pipe to the sand receiving field on the shore. compared with fluidic dredger, the efficiency of said invention is doubled.

Description

Abyssal inversely hanging water turbine pump mud and sand dredging boat

The present invention relates to adopt the method and the device of suction mud grit from the He Hai abyss.

The hydraulic dredger of commonly seeing can only come Mi Zuoye in the depth of water ten, cross this then must the additional jet flow pump to increase the suction journey of the centrifugal shell pump of dredge boat.External as " Asiasat 1 " that Japan builds reaches " fly tortoise number " large-scale jetting type dredge boat, can take the dark sea sand of 80～100m, reclaims fields from the sea.The domestic elephant filled out the sea for port, Australia and made the airport and also quote this method.

Along with the construction in large and medium-sized power station, build high dam on the great rivers.After building up as Shuikou Hydraulic Station, the upstream depth of water three, 40 meters can not be excavated river sand with chain-bucket again, also must use jet pump device instead and take out sand.

But the hydraulic efficiency of jetting type dredge boat just about 30%, power waste is big, and jet pump also brings the extensive work clear water into and both watered down concentration of hydraulic mixture, has also increased the dredging tube caliber, all is unfavorable factor.

The objective of the invention is to provide a kind of brand-new method and apparatus of in river, sea, lake, storehouse, adopting suction abyss silt.Thereby it will significantly improve out husky rate energy conservation than existing deep water efflux formula dredge boat.

The object of the present invention is achieved like this:

High-lift centrifugal pump of dress Diesel Driven on the dredge boat, the water under high pressure of its outlet is delivered in the hydraulic turbine of hanging the turbine pump bottom the abyss by the feet with flexible duct and goes.It drives the runner rotation after draft tube enters in the deep water.This hydraulic turbine and shell pump strike up partnership, and runner is coaxial with the impeller of water pump, pump housing second line of a couplet suction nozzle.Runner band impeller rotation makes suction nozzle form negative pressure with in the silt suction pump, derives the water surface by dredging tube and inserts barge and transport or connect to deliver to through the floating pipe of the water surface and be subjected to the battle field on the bank.

At the suction nozzle of pressing close to the silt boulder bed, there is the part water under high pressure that attracts before the hydraulic turbine to spray silt stirred and relaxedly sucts by shell pump through hydraulic giant; As for the silt stone that hardens solid, hydraulic giant then can be provided with the reamer wheel when motionless under suction nozzle.The power of this reamer wheel shaft is transmitted through reducer by turbine pump main shaft stage casing, and the silt that hardens is twisted loose sucking-off.

The present invention has than the advantage of existing jetting type dredge boat:

1. the efficient of turbine pump can reach 60～70%, exceeds nearly one times than jetting type dredge boat, energy conservation.

The Gao Jinyi that the husky concentration of band cement that turbine pump pump portion sends is also sent than jet pump doubly, so the sediment transport caliber is little.

Turbine pump also can drive reamer from main shaft output dynamic retarding, stirs the sandstone of deals knot, and jetting type then can not.

Turbine pump is simple in structure, and its performance has and exists with ... the peculiar rule that head is a function, and rotating speed is captured it with the silt particle resistance that the load luffing is big to harden under can the self adaptation suction nozzle.

Concrete structure of the present invention is provided by following embodiment and accompanying drawing.

Fig. 1 and Fig. 2 are the main device and the operational methods of this dredge boat.Fig. 1 is shown in fore dress diesel engine A and drives a high-lift centrifugal pump B by shaft coupling, and middle part its oblique arm of dress mast crane C C2 out reach can change, and can turn round around mast C1.Have wire rope C4 to walk around the pulley C3 of oblique arm top end, vertical extent hangs a turbine pump F who hangs by the feet on the silt layer of abyss under water, and the other end of wire rope and hoist engine C5 link.The revolution oblique arm is borrowed the drag-line between the telescopic topmast arm, and volume puts wire rope and can hang turbine pump displacement around dredge boat at any time and inhale huskyly, and turbine pump also has three pin to insert in the silt layers down, and prevention is circled round.Is the same as for the rely anchor system of location and the propeller and the rudder of navigation of dredge boat with the ship of commonly seeing.

Can add vee-pulley outside the shaft coupling between diesel engine and centrifugal pump, drive generator D as air compressor machine E and mains lighting supply with the V-belt.

Fig. 2 is the turbine pump F that hangs by the feet in the bottom, abyss, it forms integral body by francis turbine and the centrifugal shell pump of spiral (or mixed-flow shell pump), the water under high pressure that centrifugal pump is sent on ship rubber tube 2-1 goes into draft tube F3 and discharges in the deep water up after reducer tee elbow 2-2 main flow inserts hydraulic turbine volute F1 driving runner F2; This moment and runner altogether the impeller F5 of pump portion of main shaft F4 in company with rotation, make the bottom towards the suction nozzle G of silt layer with silt suck through impeller go out pump case F6, mud pipe 2-4 upwards transfers out the water surface and transports to barge, or insert the floating pipe of water surface 2-6 and deliver to desilting field on the bank.

Suction nozzle G shape is pressed close to the silt face like bamboo hat, and down to barrier G1 center band nozzle G2 is arranged, its water under high pressure reducer tee elbow before the hydraulic turbine meets tubule 2-3 and introduces, and grit is the suction nozzle suction towards relaxed.

Because the deadweight of water pipe and turbine pump is bigger, descending water inlet pipe 2-1 and up row's sand tube 2-4 can be inserted in successively plastics floating ring 2-5 balance it, the turbine pump draft tube then overlaps outward with rubber pneumatic bag 2-7, air compressor machine E supplies gas and then expands into capsule through gate valve E1, bypass valve E2, flexible pipe 2-8 from the ship, seize the turbine pump loss of weight on both sides by the arms so that float, be convenient to hang displacement so that the maintenance that emerges.Then appropriate drum, flat maintenance turbine pump lightness sensation in the upper and heaviness in the lower are set upright during operation, so can not topple over as tumbler.

At dredging tube after the abyss send silt to go out the water surface, as need mud, husky separate or need far give, suitable venting part muddy water as Fig. 3, is led this silt water appropriateness and is improved flow velocity, enter the hydrocyclone H of interior separate type with tangential direction, produce eddy flow therein, borrow action of centrifugal force, thick heavy the leaving in wall along the circular cone tube wall of particle to the bottom, extremely be subjected to the battle field on the bank through being with water to have the conveying of pressure to float pipe 2-6 again, or send into barge through the surplus water of elimination through the water surface.And the muddy water at hydrocyclone center, then upwards making through gate valve restraining through central tube has pressure to put, and does not multitudinously influence far sending of the band water grit that concentrates the bottom; Or behind gate valve, deliver to the nozzle J1 at jet pump J middle part, and again the top of the row's soakaway trench 3-1 that inserts the husky bilge of barge portion is taken over to jet pump intake J2, then can whereby infiltration be drained.

Insert the abyss turbine pump if use the 60KW6100 diesel engine to drive 200S63 type double suction centrifugal pump on the ship with 175 rubber plastic pipe, its hydraulic turbine is that the spiral shell pump 225LX-16 of the coaxial direct connection of mixed-flow HL246-25 type type can be adopted suction gravel 90m from 30M is dark ³It is defeated apart from outside hundred meters that/h goes out the water surface.

As use 250KW, 12V135 diesel engine to drive 300S90 type double suction centrifugal pump and insert the abyss turbine pump with 250 rubber plastic pipe, its hydraulic turbine is that the coaxial direct connection mixed-flow of mixed-flow HL110-25 type shell pump 400HL-25 type can be adopted suction grit 300m in the 40m abyss ³It is defeated apart from arriving 300m that/h goes out the water surface.

Claims

The abyss hang by the feet turbine pump adopt the method for inhaling silt particle and device thereof be on the ship dress diesel engine A direct connection to drive centrifugal pump B be power source and adorn mast crane C for the working machine displacement, feature of the present invention is:

A) wire rope on the mast crane C deeply hangs the turbine pump F that is upside down in the bottom, abyss under water, its structure is top francis turbine and the self-contained one of bottom shell pump, on connect and connect suction nozzle G under the draft tube F3, pivoted arm on the crane hangs turbine pump in place and displacement at ship ambient water bed-sit layer by wire rope

B) water under high pressure of centrifugal pump output from the ship goes out draft tube F3 and discharges up in the deep water after flexible rubber-plastic pipe 2-1 reducer tee elbow 2-2 main flow input volute F1 drives runner F2,

C) be total to the shell pump impeller F5 of main shaft F4 in company with rotation with runner this moment, the suction nozzle G formation negative pressure of proper silt layer is sucked silt, go out pump case F6 mud pipe 2-4 through impeller and upwards transfer out water surface dehydration and enter in the barge and transport, or insert the floating pipe of water surface 2-6 and deliver to and be subjected to the sand field on the bank

D) it is husky as need mud, sand separation or need far send the time to send the band cement of the water surface, lead this sand water enters interior separate type with tangential direction hydrocyclone H, then the part muddy water is upwards controlled venting through gate valve from central tube, concentrate gravel or advance barge and transport or insert the floating pipe of the water surface and deliver to and be subjected to the sand field on the bank of its band water of letting out under the circular cone tube wall

E) press water from the output of hydrocyclone central tube makes the nozzle J1 that is connected to jet pump J, inserts the row's soakaway trench upper end of barge sand bilge portion and the suction pipe J2 of jet pump and joins, and gets rid of the gravel infiltration whereby,

F) the air compressor machine E on the ship receives with flexible pipe by valve, bypass valve that the outer air bag 2-7 of turbine pump draft tube send, exhaust, make its bulging or flat main turbine pump set upright with floating, sink.