A control method for launching a ship chamber airbag of a ship lift

Abstract

This invention relates to the field of ship lift cabin launching control technology, specifically disclosing a control method for launching ship lift cabins with airbags, comprising the following steps: S001, at least twelve lifting airbags arranged according to a predetermined pattern are provided at the bottom of the cabin, and the lifting airbags are continuously inflated until the bottom of the cabin is parallel to the manufacturing ground; S002, when step S001 is executed, at least six buoyancy-aiding airbags located on the buoyancy aid position of the cabin and arranged against its side wall, and at least four receiving airbags located at the contact point between the ground and the forward end of the cabin, arranged according to a predetermined pattern, are all inflated to a predetermined air pressure; S003, the cabin is pulled down to the end of the manufacturing ground, and after adjusting the cabin's attitude to be parallel to the launching point, the cabin continues to move down and contacts the first receiving airbag. This invention can solve the problem of launching ship lift cabins, and the actual construction operation is relatively simple, and the construction cost is more economical and easier to operate compared to the floating cloud solution.

Description

Technical Field

[0001] This invention relates to the field of ship lift cabin launching control technology, specifically to a control method for launching airbags from a ship lift cabin. Background Technology

[0002] The Goupitan Reservoir has been filled with water during the flood season, and the civil engineering of the first-stage ship lift is basically completed. The Goupitan project has entered its normal operation period, with a normal water level of 630m. The flood control limit water level during the flood season is 626.24m in June and July, and 628.12m in August. The first-stage ship lift is located inside the reservoir, and the detailed structure of the ship chamber and the upper lock head is submerged underwater. Moreover, the highest water level of the upper lock head inspection gate is only 610m. Therefore, under the normal operation conditions of the Goupitan project, the first-stage ship lift cannot drain the ship chamber, and the ship chamber can only be accessed through a floating system.

[0003] Existing floating solutions include overall floating and component floating. Because the Goupitan Reservoir area lacks navigable conditions with major rivers and there are no large shipbuilding enterprises upstream, the first-stage ship lift must be manufactured and assembled on-site at a suitable location within the reservoir area before being floated into the ship lift. For example, the launching and floating of the first-stage ship lift's cargo compartment at the Goupitan Hydropower Station on the Wujiang River in Guizhou is one of the key steps in the on-site installation of the ship lift.

[0004] How to safely launch the ship compartment into the water has become a key technical challenge in its installation, and therefore urgently needs to be addressed! Summary of the Invention

[0005] The purpose of this invention is to provide a control method for launching the airbags from the ship lift chamber into the water, in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a control method for launching the airbags of a ship lift into the water, comprising the following steps:

[0007] S001. At least twelve lifting airbags arranged in a predetermined pattern are provided at the bottom of the cabin, and the lifting airbags are continuously inflated until the bottom of the cabin is parallel to the manufacturing ground.

[0008] S002. When step S001 is performed, at least six buoyancy-aiding airbags located on the buoyancy-aiding position of the ship compartment and arranged in close contact with its side wall, and at least four receiving airbags located on the ground and in contact with the forward end of the ship compartment and arranged in a predetermined pattern, are all inflated to a predetermined pressure.

[0009] S003. The ship compartment is pulled down to the end of the manufacturing ground and the ship compartment attitude is adjusted to be parallel to the launching ground. The ship compartment continues to move down and comes into contact with the first receiving airbag. Then the second receiving airbag located at the tail end of the ship compartment is disengaged. The pressure of the lifting airbag is adjusted to make the ship compartment parallel to the launching ground.

[0010] S004. Repeat step S003 to pull the cabin downward until the forward end of the cabin floats up. One of the supporting airbags at the stern end of the cabin disengages, and then one of the supporting airbags at the forward end of the cabin is completely submerged in the water, providing buoyancy to the forward end of the cabin.

[0011] S005. Inflate and push one of the receiving airbags at the stern of the cabin, causing the stern of the cabin to leave the ground and fully enter the water. Then the remaining three receiving airbags are located at the forward end of the cabin and provide buoyancy to it.

[0012] Preferably, in step S003, the cabin is adjusted sequentially by the second, third, and fourth receiving airbags until the cabin makes full contact with the multiple receiving airbags for the first time. The forward end of the cabin remains in a position while the stern is in a high position, which constitutes one cycle. This cycle is repeated during the process of the cabin moving and entering the water.

[0013] Preferably, the control process of the lifting airbag inflation process in S001 is as follows: start the air compressor, open the shut-off valve, the solenoid reversing valve and the pressure regulating valve, connect the inflation circuit of the lifting airbag to inflate, the pressure sensor displays the target value, close the inflation circuit, and maintain the pressure of the airbag.

[0014] Preferably, the inflation control process for the multiple receiving airbags in the S003 cabin attitude adjustment is as follows:

[0015] 1) Open the shut-off valve of the receiving airbag located at the forward end of the cabin, the airbag deflates, and at the same time open the inflation circuit of the receiving airbag located at the stern end of the cabin, the airbag inflates.

[0016] 2) After the ship compartment is parallel to the ground surface, close the shut-off valve of the deflated receiving airbag and the inflation circuit of the inflated receiving airbag.

[0017] Preferably, in step S004, the ship compartment is moved down to the lowest point where 1 / 5 of the ship's hull protrudes above the waterline, and the pressure of the multiple lifting airbags is coordinated to keep the forward end of the ship compartment floating.

[0018] Preferably, in step S005, after the ship chamber freely descends into the water, the air pressure of the multiple receiving airbags that provide buoyancy remains constant.

[0019] Preferably, the lifting airbag, the receiving airbag, and the buoyancy airbag are all cylindrical marine airbags.

[0020] Preferably, the end faces of the left and right ends of the cylindrical marine airbag are air inlet connectors.

[0021] Preferably, the plurality of the buoyancy-aiding airbags are positioned at one-third of the height of the cabin.

[0022] In the above technical solution, the control method for launching the airbag of the ship lift cabin provided by the present invention has the following beneficial effects: Compared with the traditional floating cloud solution for the installation of the ship lift cabin, this embodiment provides the cooperation between the lifting airbag, the receiving airbag and the buoyancy airbag and the coordination between inflation and deflation, so that the cabin can be launched from the manufacturing ground, the launching ground and the water in three steps, which has brought about a qualitative change in the project cycle and construction difficulty. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] A method for controlling the launching of airbags from a ship lift's cargo compartment into the water includes the following steps:

[0025] S001. At least twelve lifting airbags arranged in a predetermined pattern are provided at the bottom of the cabin, and the lifting airbags are continuously inflated until the bottom of the cabin is parallel to the manufacturing ground.

[0026] When steps S002 and S001 are performed, at least six buoyancy airbags located on the buoyancy aid position of the ship compartment and arranged in close contact with its side wall, and at least four receiving airbags located at the contact point between the ground and the forward end of the ship compartment and arranged in a predetermined pattern are inflated to a predetermined pressure.

[0027] S003. The ship compartment is pulled down to the end of the manufacturing ground and the ship compartment attitude is adjusted to be parallel to the launching ground. The ship compartment continues to move down and comes into contact with the first receiving airbag. Then the second receiving airbag located at the tail end of the ship compartment is disengaged. After the airbag is disengaged, the pressure of the lifting airbag is adjusted to make the ship compartment parallel to the launching ground.

[0028] S004. Repeat step S003 to move the cabin downwards until the forward end of the cabin floats up. One of the supporting airbags at the stern end of the cabin disengages, and then one of the supporting airbags at the forward end of the cabin is completely submerged in the water, providing buoyancy to the forward end of the cabin.

[0029] S005. When one of the supporting airbags at the stern of the cabin is inflated and pushed, causing the stern of the cabin to lift off the ground and fully enter the water, the remaining three supporting airbags are located at the forward end of the cabin and provide buoyancy to it.

[0030] Specifically, during the implementation of the above scheme, the manufacturing ground, i.e. the place where the ship compartment is welded and assembled, is prepared after completion or in advance. The launching ground is obtained by excavation using engineering machinery. It can be a stepped ground, with the height of each step equal to the width of the three types of airbags after inflation, or it can be a sloping ground.

[0031] In the above technical embodiment, in step S003, the cabin is adjusted by the second, third and fourth receiving airbags in sequence. After the cabin makes full contact with multiple receiving airbags for the first time, the forward end of the cabin remains in a position and the stern is in a high position, which constitutes one cycle. This cycle is repeated during the process of the cabin moving and entering the water.

[0032] Furthermore, the control process of the lifting airbag inflation in S001 is as follows: start the air compressor, open the shut-off valve, solenoid reversing valve and pressure regulating valve, connect the inflation circuit of the lifting airbag to inflate, the pressure sensor displays the target value, close the inflation circuit, and the airbag maintains pressure.

[0033] As a further technical solution provided by the present invention, the inflation control process for multiple receiving airbags in the S003 cabin attitude adjustment is as follows:

[0034] 1) Open the shut-off valve of the receiving airbag located at the forward end of the cabin, which deflates the airbag. At the same time, open the inflation circuit of the receiving airbag located at the stern end of the cabin, which inflates the airbag.

[0035] 2) Once the ship compartment is parallel to the ground, close the shut-off valve of the deflated receiving airbag and the inflation circuit of the inflated receiving airbag.

[0036] Furthermore, in step S004 of the above embodiment, the ship compartment is moved downwards by traction until 1 / 5 of the ship's hull protrudes from the lowest point of the water surface, and the pressure of multiple lifting airbags is coordinated to keep the forward end of the ship compartment floating.

[0037] Furthermore, after the ship chamber freely descends into the water in step S005, the air pressure of the multiple buoyancy-providing airbags remains constant.

[0038] It should be noted that the lifting airbag, the supporting airbag, and the buoyancy airbag are all cylindrical marine airbags. Furthermore, the end faces of both ends of the cylindrical marine airbag are air inlet connectors.

[0039] As a further embodiment of the present invention, a plurality of buoyancy-aiding airbags are disposed at one-third of the height of the ship compartment.

[0040] Compared to the traditional floating cloud solution for installing the ship lift cabin, this embodiment provides the cooperation and coordination between the lifting airbag, the receiving airbag, and the buoyancy-aiding airbag, as well as the coordination between inflation and deflation, so that the cabin can be installed in three steps: from the manufacturing ground, the launching ground, and the water. This significantly reduces the project cycle and construction difficulty.

[0041] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above description is illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A control method for launching airbags from a ship lift chamber into the water, characterized in that, Includes the following steps: S001. At least twelve lifting airbags arranged in a predetermined pattern are provided at the bottom of the cabin, and the lifting airbags are continuously inflated until the bottom of the cabin is flush with the manufacturing ground. S002. When step S001 is performed, at least six buoyancy-aiding airbags located on the buoyancy-aiding position of the ship compartment and arranged in close contact with its side wall, and at least four receiving airbags located on the ground and in contact with the forward end of the ship compartment and arranged in a predetermined pattern, are all inflated to a predetermined pressure. S003, the ship compartment is towed down to the end of the manufacturing ground, and the ship compartment is adjusted to be parallel to the launching ground. The ship compartment continues to move down, and the pressure of the lifting airbag is adjusted to make the ship compartment parallel to the launching ground. S004. Repeat step S003 to pull the cabin downward until the forward end of the cabin floats up. One of the supporting airbags at the stern end of the cabin disengages, and then one of the supporting airbags at the forward end of the cabin is completely submerged in the water, providing buoyancy to the forward end of the cabin. S005. Inflate and push one of the receiving airbags at the stern of the cabin, causing the stern of the cabin to leave the ground and fully enter the water. Then the remaining three receiving airbags are all located at the forward end of the cabin and provide buoyancy to it. In step S003, the cabin is adjusted sequentially by the second, third and fourth receiving airbags. After the cabin makes full contact with the multiple receiving airbags for the first time, the forward end of the cabin remains in a low position and the stern is in a high position, which constitutes one cycle. This cycle is repeated during the process of the cabin moving and entering the water. The control process of the lifting airbag inflation process in S001 is as follows: start the air compressor, open the shut-off valve, the solenoid reversing valve and the pressure regulating valve, connect the inflation circuit of the lifting airbag to inflate, the pressure sensor displays the target value, close the inflation circuit, and the airbag maintains pressure. The inflation control process for the multiple receiving airbags in the ship's attitude adjustment described in S003 is as follows: 1) Open the shut-off valve of the receiving airbag located at the forward end of the cabin, the airbag deflates, and at the same time open the inflation circuit of the receiving airbag located at the stern end of the cabin, the airbag inflates. 2) After the ship compartment is parallel to the ground surface, close the shut-off valve of the deflated receiving airbag and the inflation circuit of the inflated receiving airbag. In step S004, the ship compartment is moved and tractioned down to the lowest point where 1 / 5 of the ship hull protrudes above the water surface, and the pressure of multiple lifting airbags is coordinated to keep the forward end of the ship compartment floating. In step S005, after the ship chamber freely descends into the water, the air pressure of the multiple receiving airbags that provide buoyancy remains constant.

2. The control method for launching the airbag from the ship lift compartment according to claim 1, characterized in that, The lifting airbag, the receiving airbag, and the buoyancy airbag are all cylindrical marine airbags.

3. The control method for launching the airbag from the ship lift chamber according to claim 2, characterized in that, The end faces of the left and right ends of the cylindrical marine airbag are air inlet connectors.

4. The control method for launching the airbag from the ship lift compartment according to claim 1, characterized in that, Multiple buoyancy-aiding airbags are positioned at one-third of the height of the ship compartment.