A pontoon liquid level measurement and valve control system

Abstract

The invention discloses a pontoon liquid level measurement and valve control system, comprising a ballast tank and a ballast pump cabin. A ballast pump is installed in the ballast pump cabin, and the ballast pump is connected to each ballast tank through a pipeline system. A liquid level transmitter is arranged in the ballast tank, and the pontoon is provided with four-corner draft sensors and a bilge flooding alarm sensor; the pipeline system is provided with a clamp-type electric remote-controlled butterfly valve corresponding to each ballast tank, and the bilge water suction port and the liquid level transmitter are respectively arranged on the left and right sides of the ballast pump cabin; the invention can specifically monitor, remotely sense, alarm, record and other functions, and its communication mode adopts a wired or wireless mode. When the pontoon needs to draft, after the data processing console issues a draft adjustment command, the butterfly valve is controlled to control the working state of the ballast pump to control the pontoon draft to a predetermined position.

Description

Technical Field

[0001] The invention belongs to the technical field of pontoon control, and in particular relates to a pontoon liquid level measurement and valve control system. Background Art

[0002] A pontoon is a passage pontoon for vehicles or tanks between domestic coastal terminals and ro-ro ships. It can also be used for ships to dock, get on and off passengers, and load and unload goods. Since the heights of different coastal terminals and ro-ro ships are often affected by changes in the sea surface or river, the pontoon also needs to adjust its height according to actual usage needs to meet the passage of vehicles or tanks. There is currently no technology that can adjust the floating state requirements of pontoons. Ports generally dock at coastal terminals through fixed pontoons, and ro-ro ships need to choose specific coastal terminals to dock according to their own height. As a result, there are many coastal terminals with low utilization rates and cannot be used flexibly, making it impossible to make the same coastal terminal suitable for different types of ro-ro ships. Summary of the invention

[0003] The purpose of the present invention is to provide a pontoon liquid level measurement and valve control system, which can control the pontoon draft through valve control and realize the pontoon floating state requirements in combination with liquid level measurement.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A pontoon liquid level measurement and valve control system comprises a pontoon including a ballast tank and a ballast pump cabin, wherein a ballast pump is installed in the ballast pump cabin, and the ballast pump is respectively connected to each ballast tank through a pipeline system, and a liquid level transmitter is arranged in the ballast tank, and the pontoon is provided with four-corner draft sensors and a bilge flooding alarm sensor; the pipeline system is provided with a pair of clamp-type electric remote-controlled butterfly valves corresponding to each ballast tank, and the ballast pump cabin is provided with a bilge water suction port and a liquid level transmitter on both sides; the liquid level transmitter, the four-corner draft sensor and the bilge flooding alarm sensor are all connected to the input end of the ballast tank liquid level telemetry data acquisition box, the ballast pump and the clamp-type electric remote-controlled butterfly valve are connected to the output end of the valve and ballast pump control box, and the ballast tank liquid level telemetry data acquisition box and the valve and ballast pump control box are connected to a data processing console to realize the draft and drainage control of the pontoon.

[0006] Preferably, the data processing console is connected to the ballast tank liquid level telemetry data acquisition box and the valve and ballast pump control box respectively through cables or wireless communications.

[0007] Preferably, the pipeline system includes a ballast pump, which is connected to a seawater main pipe. The seawater main pipe is provided with a plurality of groups of clamp-type electric remote-controlled butterfly valves and branch pipes, and the branch pipes are connected to a suction port.

[0008] Preferably, the piping system also includes a ballast pump room piping, which includes a seawater tank, which is connected to the seawater main and the overboard discharge port through a butterfly check valve and a clamp-type electric remote-controlled butterfly valve, respectively, and the bilge water inlet is connected to the overboard discharge port through a centrifuge and a bilge water jet pump.

[0009] Preferably, a butterfly check valve and a clamp-type electric remote-controlled butterfly valve are provided at the front end of the overboard discharge port, and a clamp-type electric remote-controlled butterfly valve and a stop check valve are installed near the centrifuge and the bilge water jet pump.

[0010] Preferably, the ballast tank liquid level telemetry data acquisition box includes a power supply, an information acquisition unit and a touch screen. The information acquisition unit is respectively connected to the liquid level transmitter, four-corner draft sensors, water immersion alarm sensors, clamp-type electric remote-controlled butterfly valves and ballast pumps. The touch screen is used to analyze and display the information of the above-mentioned components, and the power supply supplies power to the above-mentioned parts respectively.

[0011] Preferably, the valve and ballast pump control box includes a power supply, a touch screen, a ballast pump control connection port and a valve switch connection port.

[0012] Preferably, the data processing console is specifically a computer switchboard, including a display, a keyboard, a mouse and a power supply.

[0013] The above technical solution can achieve the following beneficial effects:

[0014] The present invention can perform functions such as monitoring, remote sensing, alarming, and recording. Its communication method adopts wired or wireless mode. When the pontoon draft is required, the data processing console issues a draft adjustment command to control the butterfly valve to the working state of the ballast pump, and control the pontoon draft to a predetermined position.

[0015] The present invention can control the pontoon's heeling draught and longitudinal draught difference to be less than 10 cm through the cooperation of various components or sensors. After the water level adjustment is completed, it can also ensure that the draught deviation at the four corners of the pontoon is less than 5 cm and the liquid level deviation in each cabin is less than 5 cm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the control system piping system diagram.

[0017] Figure 2 This is the piping diagram of the ballast pump room.

[0018] Figure 3 It is the system schematic diagram.

[0019] Figure 4 It is the installation diagram of the liquid level transmitter.

[0020] Figure 5 This is the installation diagram of the four-corner draft sensor.

[0021] In the figure:

[0022] In the figure: 1. Ballast tank; 2. Ballast pump room; 3. Seawater main; 4. Seawater tank; 5. Suction port; 6. Branch pipe; 7. Wafer-type electric remote-controlled butterfly valve; 8. Ballast pump; 9. Flange-type butterfly check valve; 10. Suction coarse water filter; 11. Wafer-type butterfly check valve; 12. Overboard discharge port; 13. Bottom jet pump; 14. Centrifugal pump; 15. Bottom discharge port; 16. Liquid level transmitter; 17. Four-corner draft sensors; 18. Flooding alarm sensor. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings:

[0024] like Figure 1-2As shown, a pontoon liquid level measurement and valve control system comprises a ballast tank 1 and a ballast pump cabin 2. A ballast pump 8 is installed in the ballast pump cabin, and the ballast pump is connected to each ballast tank through a pipeline system. A liquid level transmitter 16 is provided in the ballast tank, and the pontoon is provided with a four-corner draft sensor 17 and a bilge flooding alarm sensor 18; the pipeline system is provided with a clamp-type electric remote-controlled butterfly valve 7 corresponding to each ballast tank, and the ballast pump cabin is provided with a bilge water suction port and a liquid level transmitter on both sides; the liquid level transmitter, the four-corner draft sensor and the flooding alarm sensor are all connected to the input end of the ballast tank liquid level telemetry data acquisition box, the ballast pump and the clamp-type electric remote-controlled butterfly valve are connected to the output end of the valve and ballast pump control box, and the ballast tank liquid level telemetry data acquisition box and the valve and ballast pump control box are connected to the data processing console to realize the pontoon draft and drainage control. The data processing console is connected to the ballast tank level telemetry data acquisition box and the valve and ballast pump control box respectively through cables or wireless communications. The pipeline system includes a ballast pump, which is connected to the seawater main pipe 3. The seawater main pipe is provided with several groups of clamp-type electric remote-controlled butterfly valves and branch pipes 6, and the branch pipes are connected to the suction port 5. The pipeline system also includes a ballast pump cabin pipeline, which includes a seawater tank 4. The seawater tank is connected to the seawater main pipe and the overboard discharge port 12 respectively through a butterfly check valve 9 and a clamp-type electric remote-controlled butterfly valve, and the bilge water inlet is connected to the overboard discharge port through a centrifuge 14 and a bilge water jet pump 13. A butterfly check valve 11 and a clamp-type electric remote-controlled butterfly valve are provided at the front end of the overboard discharge port, and a clamp-type electric remote-controlled butterfly valve and a stop check valve are installed near the centrifuge and the bilge water jet pump. The ballast tank level telemetry data acquisition box includes a power supply, an information acquisition unit and a touch screen. The information acquisition unit is respectively connected to the level transmitter, the four-corner draft sensor, the flooding alarm sensor, the clamp-type electric remote control butterfly valve and the ballast pump. The touch screen is used to analyze and display the information of each of the above components, and the power supply is used to supply power to each of the above parts. The valve and ballast pump control box includes a power supply, a touch screen, a ballast pump control connection port and a valve switch connection port. The data processing console is specifically a computer switchboard, including a display, a keyboard, a mouse and a power supply.

[0025] Example:

[0026] The ballast pump room pipeline is installed in the ballast pump room of the pontoon, specifically including a seawater tank, which is connected to the ballast pump and the overboard discharge port of the seawater main through pipelines, wherein flanged butterfly check valves, suction coarse water filters and wafer-type electric remote-controlled butterfly valves are installed on the pipeline near the seawater tank, wafer-type butterfly check valves and wafer-type electric remote-controlled butterfly valves are also installed on the pipeline of the overboard discharge port, and wafer-type butterfly check valves are installed on the seawater main; there is a water inlet at the bottom of the side, which is connected to the overboard discharge port, and a stop check valve, a centrifugal pump, a wafer-type electric remote-controlled butterfly valve and a bilge water jet pump are installed on the pipeline between the water inlet and the overboard discharge port, wherein the centrifugal pump adopts a single vertical centrifugal pump, and the bilge water jet pump is driven by the ballast pump. The above-mentioned pipeline system is the ballast pump room pipeline, which is respectively arranged on the port and starboard sides of the pontoon.

[0027] The ballast pump is also provided with several groups of branch pipes connected to each ballast tank through the seawater main pipe. The branch pipes are installed with clamp-type electric remote-controlled butterfly valves, and the ends of the branch pipes are suction ports.

[0028] A ballast tank level telemetry data acquisition box and a valve and ballast pump control box are installed on the platform of the pontoon. The ballast tank level telemetry data acquisition box includes a power supply, an information acquisition unit and a touch screen. The power supply adopts an uninterruptible power supply. The output end of the information acquisition unit is a touch screen, and the input end of the information acquisition unit is respectively connected to the liquid level transmitter, four-corner draft sensors, flooding alarm sensors, clamp-type electric remote control butterfly valve and the data end of the ballast pump.

[0029] The valve and ballast pump control box are connected to each wafer-type electric remote-controlled butterfly valve and ballast pump respectively to realize the opening and closing of the wafer-type electric remote-controlled butterfly valve and the control of the ballast pump operation status. The valve and ballast pump control box uses Siemens series PLC. SIMATIC S7-1200 is a compact and modular PLC that can complete simple logic control, advanced logic control, HMI and network communication tasks. The touch screen uses Siemens TP1200 series, and the host computer also uses Siemens WINCC configuration software.

[0030] The data processing console is a computer switchboard, including a display, keyboard, mouse and power supply, which are connected to the valve and ballast pump control box and the ballast tank liquid level telemetry data acquisition box respectively. Since the shore workstation is far away from the ship, there may be problems with the transmission distance of the network cable. This system adopts the fiber optic communication method. Fiber optic switches are installed in the data sampling box and the shore workstation. The fiber optic switch itself has a network port, which can realize the function of the network switch, and it can also convert the network signal into an optical signal. After pairing, the two places that were originally far apart are networked through optical fiber. At the same time, the optical signal is not easily affected by electromagnetic interference, which improves the reliability of the system.

[0031] in Figure 4As shown, the liquid level sensor is led out from the cabin through a cable to the empty tank connection junction box, which is placed in the ballast tank liquid level telemetry data acquisition box. Figure 5 As shown, the four-corner draft sensor 17 leads the cable from the cabin body and is connected to the junction box, which is also set in the ballast tank liquid level telemetry data acquisition box. The internal terminals of the junction box are divided into output red wire terminal, power black wire terminal, RS485A yellow wire and RS485B white wire.

[0032] The above are all preferred embodiments of the present invention. For ordinary technicians in this technical field, without departing from the principle of the present invention, various equivalent modifications to the present invention belong to the protection scope of the claims attached to this application.

Claims

1. A pontoon liquid level measurement and valve control system, comprising a ballast tank and a ballast pump room, characterized in that: A ballast pump is installed in the ballast pump room, and the ballast pump is connected to each ballast tank through a pipeline system. A liquid level transmitter is provided in the ballast tank, and the pontoon is provided with a four-corner draft sensor and a bilge flooding alarm sensor; the pipeline system is provided with a pair of clamp-type electric remote-controlled butterfly valves corresponding to each ballast tank, and the bilge water suction port and liquid level transmitter are respectively provided on the left and right sides of the ballast pump room; the liquid level transmitter, the four-corner draft sensor and the bilge flooding alarm sensor are all connected to the input end of the ballast tank liquid level telemetry data acquisition box, the ballast pump and the clamp-type electric remote-controlled butterfly valve are connected to the valve and the output end of the ballast pump control box, and the ballast tank liquid level remote The data acquisition box, valve and ballast pump control box are connected to the data processing console to realize the draft and drainage control of the pontoon; the piping system also includes a ballast pump room pipeline, and the ballast pump room pipeline includes a seawater tank, which is connected to the seawater main and the overboard discharge port through a butterfly check valve and a clamp-type electric remote-controlled butterfly valve respectively, and the bilge water inlet is connected to the overboard discharge port through a centrifuge and a bilge water jet pump; the valve and ballast pump control box includes a power supply, a touch screen, a ballast pump control connection port and a valve switch connection port, and the data processing console is specifically a computer switchboard, including a display, a keyboard, a mouse and a power supply.

2. A pontoon liquid level measurement and valve control system according to claim 1, characterized in that: The data processing console is connected to the ballast tank liquid level telemetry data acquisition box and the valve and ballast pump control box respectively through cables or wireless communications.

3. The pontoon liquid level measurement and valve control system according to claim 1, characterized in that: The pipeline system comprises a ballast pump, which is connected to a seawater main pipe. The seawater main pipe is provided with a plurality of groups of clamp-type electric remote-controlled butterfly valves and branch pipes, and the branch pipes are connected to a suction port.

4. The pontoon liquid level measurement and valve control system according to claim 1, characterized in that: A butterfly check valve and a clamp-type electric remote-controlled butterfly valve are arranged at the front end of the outboard discharge port, and a clamp-type electric remote-controlled butterfly valve and a stop check valve are installed near the centrifuge and the bilge water jet pump.

5. The pontoon liquid level measurement and valve control system according to claim 1, characterized in that: The ballast tank liquid level telemetry data acquisition box includes a power supply, an information acquisition unit and a touch screen. The information acquisition unit is respectively connected to the liquid level transmitter, four-corner draft sensors, flooding alarm sensors, clamp-type electric remote control butterfly valves and ballast pumps. The touch screen is used to analyze and display the information of each component, and the power supply supplies power to each part.

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