Automatic leveling system for floating transportation and installation of caisson

Abstract

The utility model belongs to the technical field of port coast engineering, and particularly relates to an automatic leveling system for floating transportation and installation of a caisson. Comprising an automatic control cabinet, a submersible pump, an injection pump, an electric three-way valve and a liquid level sensor, the submersible pump, the automatic control cabinet and the electric three-way valve are connected with a diesel generator, the submersible pump is connected with the injection pump through a first plastic hose, and a plurality of second plastic hoses are connected below the injection pump through the electric three-way valve; the second plastic hose extends to the bottom faces of all the caisson cells through water passing holes among the caisson cells, meanwhile, liquid level sensors are arranged on the bottom faces of the caisson cells, the liquid level sensors are connected with an automatic control cabinet through signal transmission lines, and the automatic control cabinet controls opening, closing and reversing of electric three-way valves in all the caisson cells. And the ballast balance of the whole caisson is kept through automatic drainage. The caisson remote control water pumping leveling device can achieve caisson remote control water pumping leveling, achieves unattended alarm, saves ship engine resources, and improves working efficiency and safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of port and coastal engineering, in particular to an automatic leveling system for caisson floating installation. Background Art

[0002] A caisson is a box-shaped structure with a bottom used in projects such as ports and docks. The caisson can be controlled to sink or float by adjusting the ballast water inside. Currently, long-distance caisson towing uses an escorted pumping barge. When an abnormality occurs, operators climb to the top of the caisson, observe the water level changes in each compartment, open the compartment cover that needs to be pumped, and command the pumping barge to lower the water pump. However, this operation method, which requires personnel to climb onto the caisson, is greatly affected by the caisson's posture and wind and wave conditions. Since the caisson is floating on the sea during long-distance towing, sudden incidents often occur due to meteorological influences. At this time, it is extremely dangerous for personnel to climb to the top of the caisson, and they may not be able to evacuate the caisson in time. In serious cases, the caisson can easily capsize, posing a major safety hazard. Utility Model Content

[0003] The utility model aims to solve the problems existing in the above-mentioned prior art and provide an automatic leveling system for caisson floating installation.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an automatic leveling system for floating installation of a caisson, characterized in that it includes an automatic control cabinet, a submersible pump, a jet pump, an electric three-way valve, and a liquid level sensor. The submersible pump, the automatic control cabinet, and the electric three-way valve are respectively connected to a diesel generator. The submersible pump is connected to the jet pump through a plastic hose 1. The lower part of the jet pump is connected to multiple plastic hoses 2 through an electric three-way valve. The plastic hoses 2 extend to the bottom surface of each compartment of the caisson through the water-passing holes between the caisson compartments. At the same time, a liquid level sensor is arranged on the bottom surface of the caisson compartment. The liquid level sensor is connected to the automatic control cabinet through a signal transmission line. The automatic control cabinet controls the opening, closing and reversing of the electric three-way valve in each caisson compartment, and automatically drains water to maintain the overall ballast balance of the caisson.

[0005] The automatic control cabinet is fixedly connected to the top surface of the towed caisson by a steel wire rope, and includes an alarm threshold setting module, a comparison control module, and a reversing module. The alarm threshold setting module is used to set the maximum liquid level height in each compartment. The comparison control module is used to compare the liquid level transmitted by the liquid level sensor with the input alarm threshold, control the opening of the electric three-way valve in the caisson compartment where the liquid level is higher than the threshold, and control the closing of the electric three-way valve in the caisson compartment where the liquid level is below the threshold. The reversing module is used to switch the opening and closing of the electric three-way valve connected to a single jet pump and located in different compartments, perform independent drainage of multiple compartments, and automatically drain to maintain the overall ballast balance of the caisson. The control is front-of-machine control or remote control.

[0006] The diesel generator is fixedly connected to the top surface of the towed caisson through a support, and its power is selected according to the total capacity of all electrical equipment.

[0007] The diameter of the plastic hose 1 is DN50, and the diameter of the plastic hose 2 is DN40. The walls of the two hoses are clamped with steel wire, and they will not bend during the pipe laying and water pumping process. They are pre-buried in the caisson when the caisson is prefabricated, or after the caisson is prefabricated, personnel go down to the compartment to assemble and thread the pipes. The position of the water string hole is selected to be 1m higher than the pressurized water level in the caisson compartment.

[0008] The submersible pump has a rated voltage of 380V, a flow rate of more than 25m³ / h, a head of more than 20m, and is placed on the back surface of the caisson, immersed in water for more than 5m, and shall not exceed the bottom surface of the caisson.

[0009] The jet pump is a motor-less driven jet pump with a flow rate of more than 10m³ / h and is fixed in the caisson compartment through a support.

[0010] The electric three-way valve is an L-type 24vDN40 electric three-way valve.

[0011] The liquid level sensor is a pressure sensor or an ultrasonic sensor is installed at the bottom of the cover.

[0012] The utility model arranges a diesel generator on the top surface of the towed caisson as the power source for the submersible pump, the automatic control cabinet and the electric three-way valve; the submersible pump is connected to the jet pump through a plastic hose as the power source of the jet pump; a plurality of plastic hoses are connected below the jet pump through the electric three-way valve, and the plastic hoses extend to the bottom surface of the caisson compartment; at the same time, a liquid level sensor is arranged on the bottom surface of the caisson compartment; the liquid level sensor is connected to the automatic control cabinet arranged on the top surface of the caisson through a signal transmission line; the automatic control cabinet controls the opening, closing and reversing of the electric three-way valve according to the comparison between the set alarm threshold and the liquid level height received by the liquid level sensor, thereby realizing automatic drainage of different caisson compartments during the long-distance towing of the caisson.

[0013] This new system automatically levels the caisson and provides unmanned alarms, ensuring safety during long-distance towing, especially at night. Compared to traditional escort vessels that manually monitor water levels and lower drainage pumps, this system conserves ship machinery resources and improves efficiency and safety. Once the caisson arrives at the installation area, the system can be directly monitored and controlled using the posture monitoring function, eliminating the need for surveyors to climb to the top of the caisson, further saving time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the system of the present invention.

[0015] Figure 2 It is a top view of the system of the present invention.

[0016] In the figure: 1-diesel generator, 2-automatic control cabinet, 31-plastic hose 1, 32-plastic hose 2, 33-water string hole, 4-submersible pump, 5-jet pump, 6-electric three-way valve, 7-liquid level sensor, 8-caisson compartment. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to the specific embodiments. Example

[0018] An automatic leveling system for caisson floating installation includes an automatic control cabinet 2, a submersible pump 4, a jet pump 5, an electric three-way valve 6, and a liquid level sensor 7. The submersible pump 4, the automatic control cabinet 2, and the electric three-way valve 6 are respectively connected to a diesel generator 1. The submersible pump 4 is connected to the jet pump 5 through a plastic hose 1 31. The jet pump 5 is connected to multiple plastic hoses 2 32 below through an electric three-way valve 6. The plastic hoses 2 32 extend to the bottom surfaces of each caisson compartment 8 through the water-threading holes 33 between the caisson compartments 8. At the same time, a liquid level sensor 7 is arranged on the bottom surface of the caisson compartment 8. The liquid level sensor 7 is connected to the automatic control cabinet 2 through a signal transmission line. The automatic control cabinet 2 controls the opening, closing, and reversing of the electric three-way valve 6 in each caisson compartment 8, and automatically drains water to maintain the overall ballast balance of the caisson.

[0019] The automatic control cabinet 2 is fixedly connected to the top surface of the towed caisson through a steel wire rope, and includes an alarm threshold setting module, a comparison control module, and a reversing module. The alarm threshold setting module is used to set the maximum liquid level height in each compartment. The comparison control module is used to compare the liquid level transmitted by the liquid level sensor 7 with the input alarm threshold, control the opening of the electric three-way valve 6 in the caisson compartment 8 where the liquid level is higher than the threshold, and control the closing of the electric three-way valve 6 in the caisson compartment 8 where the liquid level is below the threshold. The reversing module is used to switch the opening and closing of the electric three-way valve 6 connected to a single jet pump 5 and located in different compartments, perform independent drainage of multiple compartments, and automatically drain to maintain the overall ballast balance of the caisson. The control is front-of-machine control or remote control.

[0020] The diesel generator 1 is fixedly connected to the top surface of the towed caisson through a support, and its power is selected according to the total capacity of all electrical equipment.

[0021] The diameter of the plastic hose 1 31 is DN50, and the diameter of the plastic hose 2 32 is DN40. The walls of the two hoses are clamped with steel wire, and they do not bend during the pipe laying and water pumping process. They are pre-buried in the caisson when the caisson is prefabricated, or after the caisson is prefabricated, personnel go down to the compartment to assemble and thread the pipes. The position of the water string hole is selected to be 1m higher than the pressurized water level in the caisson compartment.

[0022] The submersible pump 4 has a rated voltage of 380V, a flow rate of more than 25m³ / h, a head of more than 20m, and is placed on the back surface of the caisson, immersed in water for more than 5m, and shall not exceed the bottom surface of the caisson.

[0023] The jet pump 5 is a motor-less driven jet pump with a flow rate of more than 10 m³ / h and is fixed in the caisson compartment 8 through a support.

[0024] The electric three-way valve 6 is an L-type 24vDN40 electric three-way valve.

[0025] The liquid level sensor 7 is a pressure sensor or an ultrasonic sensor installed at the bottom of the cover.

[0026] The method of using the present invention is as follows: a liquid level sensor 7 is set on the bottom surface of the caisson compartment 8, and the liquid level sensor 7 is connected to the automatic control cabinet 2 set on the top surface of the caisson through a signal transmission line. During long-distance towing, no manual observation is required. After the automatic control cabinet 2 receives the liquid level height signal sent by the liquid level sensor 7 in a certain compartment, it compares it with the alarm threshold that has been set. If it is higher than the threshold, the electric three-way valve 6 in the compartment is started to discharge excess water to the sea. When the water level in the caisson compartment is pumped to the set water pressure height, the automatic control cabinet 2 automatically sends a stop signal according to the change of the liquid level sensor 7 data, so that the compartment automatically stops pumping water, and controls the electric three-way valve 6 to switch to pump water from another compartment, thereby realizing automatic drainage of different caisson compartments during the long-distance towing of the caisson and maintaining the overall ballast balance of the caisson.

Claims

1. An automatic leveling system for caisson floating installation, characterized by: The invention comprises an automatic control cabinet (2), a submersible pump (4), a jet pump (5), an electric three-way valve (6), and a liquid level sensor (7). The submersible pump (4), the automatic control cabinet (2), and the electric three-way valve (6) are respectively connected to the diesel generator (1). The submersible pump (4) is connected to the jet pump (5) through a plastic hose (1) and the lower part of the jet pump (5) is connected to a plurality of plastic hoses (2) (32) through the electric three-way valve (6). The plastic hoses (2) (32) extend to the bottom surface of each caisson compartment (8) through the water-threading holes (33) between the caisson compartments (8). At the same time, a liquid level sensor (7) is arranged on the bottom surface of the caisson compartment (8). The liquid level sensor (7) is connected to the automatic control cabinet (2) through a signal transmission line. The automatic control cabinet (2) controls the opening, closing, and reversing of the electric three-way valve (6) in each caisson compartment (8) to automatically drain water and maintain the ballast balance of the entire caisson.

2. The automatic leveling system for caisson floating installation according to claim 1, characterized in that: The automatic control cabinet (2) is fixedly connected to the top surface of the towed caisson through a steel wire rope, and includes an alarm threshold setting module, a comparison control module, and a reversing module. The alarm threshold setting module is used to set the maximum liquid level height in each compartment. The comparison control module is used to compare the liquid level transmitted by the liquid level sensor (7) with the input alarm threshold, control the opening of the electric three-way valve (6) in the caisson compartment (8) where the liquid level is higher than the threshold, and control the closing of the electric three-way valve (6) in the caisson compartment (8) where the liquid level is below the threshold. The reversing module is used to switch the opening and closing of the electric three-way valve (6) connected to a single jet pump (5) and located in different compartments, perform independent drainage of multiple compartments, and automatically drain to maintain the ballast balance of the entire caisson. The control is front-of-machine control or remote control.

3. The automatic leveling system for caisson floating installation according to claim 1 is characterized by: The diesel generator (1) is fixedly connected to the top surface of the towed caisson via a support, and its power is selected according to the total capacity of all electrical equipment.

4. The automatic leveling system for caisson floating installation according to claim 1 is characterized by: The diameter of the plastic hose 1 (31) is DN50, and the diameter of the plastic hose 2 (32) is DN40. The pipe walls of the two hoses are clamped with steel wire, and they do not bend during the pipe laying and water pumping process. They are pre-buried in the caisson when the caisson is prefabricated, or assembled and piped in the compartment by personnel after the caisson is prefabricated. The water string hole (33) is opened at a position 1m higher than the pressure water level in the caisson compartment.

5. The automatic leveling system for caisson floating installation according to claim 1 is characterized by: The submersible pump (4) has a rated voltage of 380V, a flow rate of more than 25m³ / h, a head of more than 20m, and is placed on the back surface of the caisson, immersed in water for more than 5m, and must not exceed the bottom surface of the caisson.

6. The automatic leveling system for caisson floating installation according to claim 1 is characterized by: The jet pump (5) is a motor-less driven jet pump with a flow rate of more than 10 m³ / h, and is fixed in the caisson compartment (8) via a support.

7. The automatic leveling system for caisson floating installation according to claim 1 is characterized by: The electric three-way valve (6) is an L-type 24vDN40 electric three-way valve.

8. The automatic leveling system for caisson floating installation according to claim 1 is characterized by: The liquid level sensor (7) is a pressure sensor or an ultrasonic sensor installed at the bottom of the cover plate.

Images