CN210421223U

CN210421223U - Pumping system for dredging ship

Info

Publication number: CN210421223U
Application number: CN201921031216.9U
Authority: CN
Inventors: 陈牡丹
Original assignee: Shanghai Hansail Marine & Offshore Design Co ltd
Current assignee: Shanghai Hansail Marine & Offshore Design Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-04-28
Anticipated expiration: 2029-07-02

Abstract

The utility model provides a pump suction system for desilting ship: the middle part of the ship is provided with a hole, the hole is provided with a cross joint, the inner side of the cross joint is provided with a guide rail, the mud pipe passes through the guide rail, the length of the mud pipe can be spliced according to the requirement of digging depth, the hoisting and releasing of the mud pipe are controlled by winding and unwinding a winch steel wire rope, and the lower end of the mud pipe is provided with a submersible dredging pump. When the dredging ship runs to an operation position, the mud pipe is put to the water bottom through the guide rail of the cross joint, the hardened mud is impacted and crushed through high-pressure flushing, and the mud is sucked through the submersible dredging pump. The dredging ship moves through an anchoring winch on the ship, the mud pipe can be dragged along with the ship within a certain angle range due to the existence of the cross joint and cannot be broken, and when the bottom of the dredging ship is wound by sundries to enable the angle to exceed the safety range, the ship moving is automatically stopped to protect the safety of equipment.

Description

Pumping system for dredging ship

Technical Field

The utility model relates to a pump suction system for desilting ship is applicable to and clears away bottom silt in the operation waters.

Background

The existing dredging ship usually adopts a cutter suction mode, a set of cutter suction system is installed at the head of a ship body, during operation, the cutter suction system can rotate to the bottom of a water area around the ship body, a cutter in the cutter suction system rotates to break bottom sludge, and a mud pump in the system starts to suck mud, so that the function of dredging is realized.

The first prior art has the following defects:

a. when the working water area is deep water, the dredging ship suitable for the cutter suction system needs larger scale and higher manufacturing cost.

b. The cutter suction system can only work towards the head of the ship, and if the working direction needs to be changed, the whole ship needs to be adjusted, so that the operation is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the problem that exists among the prior art is overcome, a pump suction system for desilting ship is provided.

In order to solve the above problems, the technical solution of the present invention is as follows:

a pumping system for a dredging vessel: the middle part of the ship is provided with a hole, the hole is provided with a cross joint, the inner side of the cross joint is provided with a guide rail, the mud pipe passes through the guide rail, the length of the mud pipe can be spliced according to the requirement of digging depth, the hoisting and releasing of the mud pipe are controlled by winding and unwinding a winch steel wire rope, and the lower end of the mud pipe is provided with a submersible dredging pump.

The cross joint comprises an inner frame and an outer frame, a guide rail is arranged on the inner side of the inner frame, the upper edge and the lower edge of the outer side of the inner frame are connected with the outer frame through rotating shafts, the left edge and the right edge of the outer frame are connected with shaft seats through rotating shafts, the shaft seats are fixed on the ship body, and the mud pipes can swing together with the cross joint.

The part of the mud pipe higher than the cross joint is connected and lengthened through a bolt, and the upper end of the mud pipe is connected with a bank-discharging rubber hose.

The ship body is provided with two winches for lifting the mud pipe, and the two winches are distributed on the left side and the right side of the cross joint; the winch is connected with the lug plate on the mud pipe through a steel wire rope and a guide pulley so as to lift the mud pipe.

A buffer device is further arranged above the cross joint, an angle sensor is arranged on the cross joint, and a force sensor is arranged on the buffer device.

A high-pressure flushing pipe is arranged beside the mud pipe.

The beneficial effect is that the depth of the pumping system is adjustable. The problems of small digging depth and inflexible steering of the conventional cutter suction technical scheme can be solved.

Drawings

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;

fig. 1 is a schematic structural diagram of a pumping system of the dredging ship of the present invention.

Fig. 2 is a schematic view of a spider.

Fig. 3 is a side view of fig. 2.

Fig. 4 is a schematic top view of fig. 2.

Fig. 5 is a schematic view of a damper mounting structure.

Fig. 6 is a side view of fig. 5.

Fig. 7 is a schematic view of the internal structure of the buffer device.

In the figure: 1. the dredging machine comprises a submerged dredging pump, 2 parts of a spliced mud pipe, 3 parts of a high-pressure flushing pipe, 4 parts of a cross joint, 5 parts of a mud pipe winding and unwinding winch, 6 parts of a steel wire rope guide pulley, 7 parts of a buffer device with a built-in disc spring, 8 parts of a bank discharging rubber hose and 9 parts of a cross joint rotating pin shaft

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Referring to fig. 1-4, according to the required depth, the part of the spliced mud pipe 2 higher than the cross joint 4 is connected by bolts, the upper end is connected with a bank discharging rubber hose 8, the steel wire rope of the mud pipe collecting and releasing winch 5 is connected with the ear plate below the spliced mud pipe 2 by the steel wire rope guide pulley 6, the lowering depth of the spliced mud pipe 2 and the submersible dredging pump 1 connected with the lower end thereof can be adjusted by operating the two mud pipe collecting and releasing winches 5, when the submersible dredging pump 1 contacts the bottom of the operation water area, the submersible dredging pump 1 and the high pressure flushing pump on the ship are started, the high pressure water along with the high pressure flushing pipe 3 shoots out sludge which breaks hard bottom knots near the submersible dredging pump 1, mud is sucked by the submersible dredging pump 1 and is discharged to a mud discharging area through the spliced mud pipe 2 and the bank discharging rubber hose 8, and is moved at the same time, the whole mud pipe is due to the resistance of the bottom of the dredging water area and the suction force of the dredging pump 1, when the ship moves, the whole set of mud pipe can be at a certain angle with the ship, and the spliced mud pipe 2 can be effectively protected from being broken because the cross joint 4 can rotate in any direction in the space and the bending moment received by the spliced mud pipe 2 is smaller. The buffer device 7 with the built-in disc spring is arranged, so that the vibration of the whole mechanism can be reduced. An angle sensor is arranged on a cross joint rotating pin shaft 9, a force sensor is arranged on a buffer device 7 with a built-in disc spring, and when the submersible dredging pump 1 is wound by sundries at the bottom or is influenced by wind and waves, the spliced mud pipe 2 and a ship body can automatically stop moving when the angle or the force of the spliced mud pipe 2 exceeds the allowable range.

Referring to fig. 5, 6 and 7, four sets of buffer devices 7 are hinged with the inner frame 41 and the outer frame 42, the other four sets of buffer devices are hinged with the outer frame 42 and the ship deck, and a plurality of disc springs are arranged in the buffer devices and can provide buffer resistance when being compressed.

Each buffer device 7 is composed of an inner cylinder 71, an outer cylinder 72 and a disc spring 73, wherein the disc spring 73 is positioned at the inner bottom of the outer cylinder 72, the inner cylinder 71 is embedded into the outer cylinder 72, and the disc spring 73 is compressed in a telescopic mode. The end portions of the inner cylinder 71 and the outer cylinder 72 are respectively provided with a connector for external connection.

The cross joint 4 comprises an inner frame 41 and an outer frame 42, a guide rail is arranged on the inner side of the inner frame 41, the upper edge and the lower edge of the outer side of the inner frame are connected with the outer frame 42 through rotating shafts 43, the left edge and the right edge of the outer frame 42 are connected with shaft seats through rotating shafts 44, the shaft seats are fixed on a ship body, and mud pipes can swing together with the cross joint.

During operation, the dredging ship runs to an operation position, the mud pipe is put to the water bottom through the guide rail of the cross joint, the hardened mud is impacted and crushed through high-pressure flushing, and mud is sucked through the submersible dredging pump. The dredging ship moves through an anchoring winch on the ship, the mud pipe can be dragged along with the ship within a certain angle range due to the existence of the cross joint and cannot be broken, and when the bottom of the dredging ship is wound by sundries to enable the angle to exceed the safety range, the ship moving is automatically stopped to protect the safety of equipment.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A pumping system for a dredging vessel: the underwater dredging ship is characterized in that a hole is formed in the middle of the ship, a cross joint is arranged at the hole, a guide rail is arranged on the inner side of the cross joint, a mud pipe passes through the guide rail, the length of the mud pipe can be spliced according to the requirement of digging depth, the lifting and lowering of the mud pipe are controlled by winding and unwinding a winch steel wire rope, and a submersible dredging pump is mounted at the lower end of the mud pipe.

2. The pumping system of claim 1, wherein the cross joint comprises an inner frame and an outer frame, the inner frame is provided with the guide rails inside, the upper side and the lower side of the outer side of the inner frame are connected with the outer frame through rotating shafts, the left side and the right side of the outer frame are connected with shaft seats through rotating shafts, the shaft seats are fixed on the ship body, and the mud pipe can swing together with the cross joint.

3. A pumping system for a dredger according to claim 1, wherein the portion of the dredging pipe above the cross-piece is extended by a bolt connection, and the upper end of the dredging pipe is connected to a rubber hose for discharging shore.

4. The pumping system of claim 1, wherein the hull is provided with two winches for lifting the mud pipe, the two winches being disposed on the left and right sides of the cross joint; the winch is connected with the lug plate on the mud pipe through a steel wire rope and a guide pulley so as to lift the mud pipe.

5. The pumping system of claim 1, wherein a damping device is disposed above the cross joint, the cross joint having an angle sensor disposed thereon, the damping device having a force sensor disposed thereon.

6. A pumping system for a dredging vessel as claimed in claim 1, wherein a high pressure flushing pipe is provided beside the mud pipe.