CN-115897524-B - Control method for launching of ship cabin air bag of ship lift

CN115897524BCN 115897524 BCN115897524 BCN 115897524BCN-115897524-B

Abstract

The invention relates to the technical field of ship lift carriage launching control, and particularly discloses a control method for ship lift carriage air bag launching, comprising the following steps that S001, at least twelve jacking air bags which are arranged according to a preset rule are arranged at the bottom of a ship carriage, and the ship carriage bottom is continuously inflated to the bottom of the ship carriage through the jacking air bags so as to be parallel to the manufacturing ground; and S002, when the step S001 is executed, at least six floating-assisting air bags which are arranged on the floating-assisting position of the ship carriage and are attached to the side walls of the ship carriage are inflated to preset air pressure, and at least four bearing air bags which are arranged according to preset rules are arranged at the contact position of the ground and the front moving end of the ship carriage, wherein the ship carriage is pulled to move downwards to the tail end of the manufacturing ground, and the ship carriage is adjusted to move downwards continuously after being parallel to the ground and is contacted with the first bearing air bag. The invention can solve the problem of launching the ship carriage, has simple actual construction operation and more economical and easy operation of construction cost compared with implementation of a floating cloud scheme.

Inventors

LU YONGYA
HUANG JINGEN
HE GUANGHONG
WU WEI
WANG GUILAI
JIN LONG

Assignees

杭州国电机械设计研究院有限公司
贵州乌江水电开发有限责任公司

Dates

Publication Date: 20260505
Application Date: 20221125

Claims (4)

1. The control method for the launching of the ship cabin air bag of the ship lift is characterized by comprising the following steps of: S001, at least twelve jacking air bags which are arranged according to a preset rule are arranged at the bottom of the ship compartment, and the ship compartment is continuously inflated to the bottom of the ship compartment to be level with the manufacturing ground through the jacking air bags; S002, when the step S001 is executed, at least six floating-assisting air bags which are arranged on the floating-assisting position of the ship carriage and are attached to the side wall of the ship carriage are inflated to preset air pressure, and at least four receiving air bags which are arranged according to preset rules are arranged at the contact positions of the ground and the front moving end of the ship carriage; S003, the ship carriage is pulled downwards to the tail end of the manufacturing ground, the ship carriage is adjusted to be parallel to the ground, and then the ship carriage is continuously downwards moved, and the pressure of the jacking air bag is adjusted to enable the ship carriage to be parallel to the ground; S004, repeating the step S003 to enable the ship carriage to be pulled downwards until the forward end of the ship carriage floats upwards, one receiving air bag at the tail end of the ship carriage is separated, one receiving air bag at the forward end of the ship carriage completely enters water, and buoyancy is provided for the forward end of the ship carriage; S005, one of the bearing air bags to the tail end of the ship compartment is inflated and pushed, and the tail end of the ship compartment is separated from the ground to completely enter water, so that the rest three bearing air bags are positioned at the front end of the ship compartment and provide buoyancy for the ship compartment; The ship compartment in the step S003 is adjusted by the second, third and fourth bearing air bags in sequence until the ship compartment is completely contacted with the plurality of bearing air bags for the first time, the front end of the ship compartment is kept at a low position, the ship tail is in a high position state and is in a one-time cycle, and the cycle is repeatedly executed in the water entering process in the movement of the ship compartment; Starting an air compressor, opening a stop valve, an electromagnetic reversing valve and a pressure regulating valve, communicating an inflation loop of the jacking air bag to inflate, displaying a target value by a pressure sensor, closing the inflation loop and maintaining pressure of the air bag; the control flow of the inflation of the plurality of receiving airbags by the ship carriage posture adjustment in the S003 is as follows: 1) Opening a stop valve of the receiving air bag positioned at the front end of the cabin, deflating the air bag, and simultaneously opening an inflation loop of the receiving air bag positioned at the tail end of the cabin, so that the air bag is inflated; 2) Closing the stop valve of the deflated carrying air bag and the inflated loop of the inflated carrying air bag after the ship carriage is parallel to the ground surface; in the step S004, the ship carriage is moved downwards to the lowest point of the 1/5 ship body which protrudes out of the ground of the water, and the pressure of a plurality of jacking air bags is coordinated to keep the forward end of the ship carriage in a floating state; after the ship' S carriage is freely moved down into the water in the step S005, the air pressure of the plurality of receiving air bags for providing buoyancy is kept constant.
2. The method for controlling launching of a lift car airbag according to claim 1, wherein the jacking airbag, the receiving airbag and the floating assisting airbag are cylindrical marine airbags.
3. The control method for launching a ship cabin airbag of a ship according to claim 2, wherein the end surfaces of the left and right ends of the cylindrical ship airbag are gas port connecting pieces.
4. A control method for launching a lift car airbag according to claim 1, wherein a plurality of said flotation airbags are provided at one third of the height of said car.

Description

Control method for launching of ship cabin air bag of ship lift Technical Field The invention relates to the technical field of ship lift carriage launching control, in particular to a control method for ship lift carriage air bag launching. Background The constructed beach reservoir in the flood season is stored, the civil engineering part of the first-stage ship lift is basically built, the constructed beach engineering enters the normal operation period, the normal water storage level is 630m, the flood control limit water level in the flood season is 626.24m for 6-7 months, and is 628.12m for 8 months. The first-stage ship lift is positioned in a reservoir, the cabin chamber and the detailed structure of the upper lock head are submerged under water, and the highest water retaining water level of the upper lock head access door is only 610m, so that under the normal running condition of a beach construction, the first-stage ship lift does not have the condition of draining the cabin chamber, and the cabin can only enter the cabin chamber by adopting a floating cloud scheme. The floating cloud scheme applied in the prior art comprises integral floating and separated floating, and as the constructed beach storage area does not have navigation conditions with large rivers and large shipbuilding enterprises do not exist at the upstream of the storage area, the first-stage ship carriage can only be manufactured and assembled on site by selecting proper places in the storage area and then float and enter the ship carriage chamber. For example, the ship box launching floating of a first-stage ship lift of a Guizhou Wujiang beach hydropower station is one of key links for field installation of the ship lift. How to safely realize the launching of the ship carriage becomes the installation technical difficulty, so the problem of the ship carriage is very well solved! Disclosure of Invention The invention aims to provide a control method for launching an air bag of a ship compartment of a ship lift, which is used for solving the problems. In order to achieve the purpose, the invention provides the following technical scheme that the control method for launching the ship cabin air bag of the ship lift comprises the following steps: s001, at least twelve jacking air bags which are arranged according to a preset rule are arranged at the bottom of the ship compartment, and the ship compartment is continuously inflated to the bottom of the ship compartment through the jacking air bags so as to be parallel to the manufacturing ground; S002, when the step S001 is executed, at least six floating-assisting air bags which are arranged on the floating-assisting position of the ship carriage and are attached to the side wall of the ship carriage are inflated to preset air pressure, and at least four receiving air bags which are arranged according to preset rules are arranged at the contact positions of the ground and the front moving end of the ship carriage; S003, the carriage is pulled to move downwards to the tail end of the manufacturing ground, the carriage is adjusted to be parallel to the ground, then the carriage is continuously moved downwards, after the carriage is contacted with a first bearing air bag, a second bearing air bag positioned at the tail end of the carriage is separated from the first bearing air bag, and the pressure of the jacking air bag is adjusted to enable the carriage to be parallel to the ground; S004, repeating the step S003 to enable the ship carriage to be pulled downwards until the forward end of the ship carriage floats upwards, one receiving air bag at the tail end of the ship carriage is separated, one receiving air bag at the forward end of the ship carriage completely enters water, and buoyancy is provided for the forward end of the ship carriage; S005, one of the receiving air bags at the tail end of the ship carriage is inflated and pushed, the tail end of the ship carriage is separated from the ground and completely enters water, and the rest three receiving air bags are positioned at the front end of the ship carriage and provide buoyancy for the ship carriage. Preferably, in the step S003, the ship compartment is adjusted by the second, third and fourth receiving air bags in sequence until the ship compartment is completely contacted with the plurality of receiving air bags for the first time, the forward end of the ship compartment is kept at a position, the state that the ship stern is at a high position is a cycle, and the cycle is performed reciprocally during the water entering process during the movement of the ship compartment. Preferably, the control flow in the inflation process of the jacking air bag in the step S001 is as follows, an air compressor is started, a stop valve, an electromagnetic reversing valve and a pressure regulating valve are opened, an inflation loop communicated with the jacking air bag is inflated, a pressure sensor displays a target value, the inf