Hydraulic ship lift with anti-overturning capability and method for using the same

Patent metadata

Field	Value
Publication number	US-10538890-B2
Application number	US-201715853687-A
Country	US
Kind code	B2
Filing date	Dec 22, 2017
Priority date	Jan 16, 2016
Publication date	Jan 21, 2020
Grant date	Jan 21, 2020

Abstract

A hydraulic ship lift, including: a mechanical synchronizing system; a stabilizing and equalizing hydraulic driving system; and a self-feedback stabilizing system. The stabilizing and equalizing hydraulic driving system includes first resistance equalizing members arranged at corners of branch water pipes or/and second resistance equalizing members arranged at bifurcated pipes, circular forced ventilating mechanisms arranged at front of water delivery valves of a water delivery main pipe, and pressure-stabilizing and vibration-reducing boxes arranged behind the water delivery valves. The self-feedback stabilizing system includes a plurality of guide wheels; each guide wheel of the self-feedback stabilizing system is fixed on a ship reception chamber through a supporting mechanism. The supporting mechanism includes a base connected to the ship reception chamber, a support articulated on the base, a flexible member fixedly arranged between the support and the base, and a limiting stopper arranged on the outer side of the flexible member.

First claim

The invention claimed is:

1. A hydraulic ship lift, comprising:
a ship reception chamber for containing a ship;
a plurality of wire ropes; and
a stabilizing and equalizing hydraulic driving system, the stabilizing and equalizing hydraulic driving system comprising:
a plurality of vertical shafts;
a plurality of floats;
a water delivery main pipe, the water delivery main pipe comprising a plurality of water delivery valves;
a plurality of branch water pipes, each branch water pipe comprising a straight pipe at a lower part, a plurality of straight pipes at an upper part, and a plurality of angle pipes and a plurality of bifurcated pipes at a middle part;
a plurality of first resistance equalizing members or/and a plurality of second resistance equalizing members:
a plurality of circular forced ventilating mechanisms; and
a plurality of pressure-stabilizing and vibration-reducing boxes;

wherein:
the water delivery main pipe is connected to the straight pipe at the lower part of each branch water pipe;
in each branch water pipe, each angle pipe is connected to one bifurcated pipe, and the straight pipe at the lower part is connected to the straight pipes at the upper part via the angle pipes and the bifurcated pipes;
a water outlet end of each straight pipe at the upper part in each branch water pipe is arranged at a bottom of one vertical shaft;
each float is disposed in one vertical shaft;
each float is connected to the ship reception chamber via one wire rope;
the water delivery main pipe is adapted to supply water through the branch water pipes into the vertical shafts to raise the floats for lowering the ship reception chamber;
when the stabilizing and equalizing hydraulic driving system comprises the first resistance equalizing members, each first resistance equalizing member is arranged at a corner of one angle pipe;
when the stabilizing and equalizing hydraulic driving system comprises the second resistance equalizing members, each second resistance equalizing member is arranged at one bifurcated pipe;
each circular forced ventilating mechanism is arranged at front of one water delivery valve; and
each pressure-stabilizing and vibration-reducing box is arranged behind one water delivery valve.

2. The hydraulic ship lift of claim 1 , further comprising a lock chamber and a self-feedback stabilizing system, wherein:
the ship reception chamber is disposed within the lock chamber;
the self-feedback stabilizing system comprises a plurality of guide rails, a plurality of guide wheels, and a plurality of supporting mechanisms; and each supporting mechanism comprises a base, a support, a flexible member, and a limiting stopper;
the guide rails are arranged on two inner side walls of the lock chamber and the guide wheels are arranged at corresponding upper part and lower part of the ship reception chamber, each guide wheel matches and is adapted to roll along one guide rail, and each guide wheel is fixed on the ship reception chamber through one supporting mechanism;
for each supporting mechanism, the base is connected to the ship reception chamber, the support is articulated on the base, the flexible member is fixedly arranged between the base and the support, and the limiting stopper is arranged on an outer side of the base and adapted to confine the flexible member; the support comprises two oppositely arranged triangular plates, right-angle parts of the two triangular plates are fixed on a bulge on an inner side of the base through a hinge shaft, the flexible member is arranged between horizontal outer ends of the two triangular plates and the outer side of the base, and one guide wheel is fixedly arranged between the two triangular plates through an axle above the right-angle parts; and
the guide rails comprise two guide rails arranged along one of the two inner side walls of the lock chamber, and two guide rails arranged along the other of the two inner side walls of the lock chamber; two side walls of each guide rail match four guide wheels, including two guide wheels at the upper part of the ship reception chamber and two guide wheels at the lower part of the ship reception chamber; two horizontal metal plates or two right-angle plates are respectively arranged on the two side walls of each guide rail to match four guide wheels.

3. The hydraulic ship lift of claim 1 , wherein:
the stabilizing and equalizing hydraulic driving system comprises a plurality of energy dissipaters and a water level equalizing gallery;
each energy dissipater is arranged around the water outlet end of one straight pipe at the upper part in one branch water pipe;
the vertical shafts are communicated with each other through the water level equalizing; gallery; and
the bottom of each float is a cone of 120 degrees, and a clearance ratio of one vertical shaft to a corresponding float is between 0.095 and 0.061.

4. The hydraulic ship lift of claim 1 , wherein:
when the stabilizing and equalizing hydraulic driving system comprises the first resistance equalizing members, each first resistance equalizing member is a closed pipe head extending downwards from the corner of one angle pipe;
when the stabilizing and equalizing hydraulic driving system comprises the second resistance equalizing members, each second resistance equalizing member is a solid or hollow cone, wherein, the upper end of the cone is fixed on the wall of a horizontal pipe of one bifurcated pipe, and the lower end of the cone extends into an upright pipe of the one bifurcated pipe;
each circular forced ventilating mechanism comprises a ventilating ring pipe fixed at the exterior of the water delivery main pipe, wherein, a first through hole is formed in the inner side wall of the ventilating ring pipe, the first through hole is communicated with a second through hole formed in the wall of the water delivery main pipe, a third through hole is formed in the outer side wall of the ventilating ring pipe, the third through hole is connected to an air supply pipe, and the air supply pipe is connected to an air source; and
each pressure-stabilizing and vibration-reducing box comprises a housing and an outer beam system, a cavity is formed in the housing, water inlets and a water outlet are disposed on the housing, the outer beam system is arranged on the outer wall of the housing, and inner beam system fences are arranged in the cavity at intervals; wherein, each inner beam system fence comprises a hollow plate formed by crisscrossed vertical rods and horizontal rods to match the shape of a cross section of the cavity, and tension diagonals are arranged in hollowed parts of the hollow plate; the crisscrossed vertical rods and horizontal rods, and the tension diagonals are solid or hollow tubes, and groove-shaped reinforcing plates are arranged at crisscrossed parts of the vertical rods and the horizontal rods; and cushion plates are arranged at connection parts between the inner beam system fences and the side walls of the cavity and at connection parts between the inner beam system fences and the bottom walls of the cavity.

5. The hydraulic ship lift of claim 4 , wherein in each pressure-stabilizing and vibration-reducing box:
a manhole for overhauling is formed in the housing a gas collection groove is arranged at the back part of the interior of the housing, exhaust holes are disposed in the top of the gas collection groove, and the exhaust holes are connected to an exhaust pipe;
the outer beam system coats the whole outer wall of the housing, the outer beam system comprises four main cross beam plates, a plurality of secondary cross beam plates, a plurality of vertical beam plates and a plurality of horizontal beam plates;
the main cross beam plates have the same height and are arranged at intervals;
the secondary cross beam plates are d

Assignees

• Huaneng Lancang River Hydropower Inc
• Power China Kunming Engineering Corporation Ltd
• Nanjing Hydraulic Res Inst
• China Inst Water Resources & Hydropower Res

Inventors

• Ma Hongqi
• Hu Yaan
• Zhang Zongliang
• Yuan Xianghua
• Xiang Zejiang
• Al Yongping
• Chuan Yimin
• Nan Guanqun
• Zou Rui
• Chen Zhaoxin
• Hu Xiaolin
• Zhang Hongtao
• Xiao Haibin
• Huang Qun
• Zhou Keheng
• Cao Xuexing
• Li Zichong
• Ma Renchao
• Cao Yinan
• Ling Yun
• Xie Sisi
• Yu Junyang
• Li Zhonghua
• Li Yun
• Xuan Guoxiang
• Wang Xin
• Yan Xiujun
• Xue shu
• Guo Chao
• Huang Yue
• Wu Yihong
• Zhang Rui
• Zhang Dong
• Zhang Jinxiong
• Zhang Wenyuan
• Zhang Hongwei
• Gao Jianbiao

Classifications

• E02C5/00 Primary

  Mechanisms for lifting ships vertically (salvaging sunken vessels B63C7/00) · CPC title