Oil spilling monitoring and pump stopping system for oil tanker

Abstract

The utility model provides an oil spilling monitoring pump stopping system for an oil tanker. Relates to the field of oil tanker work monitoring, and aims to solve the problem of fuel oil leakage caused by easy overflow in the refueling process of the existing oil tanker, a floating ball sensor and an emitter which are transferred to the oil tanker along with a refueling pipe are adopted, and when fuel oil is accumulated in an oil collecting tank, oil overflow is proved to occur; the floating ball sensor obtains the liquid level in an oil collecting tank of an oil receiving ship and sends a trigger signal to the emitter, the emitter sends the signal to the receiver in a wireless signal mode, the receiver sends a pump stopping signal to a controller of the cargo oil pump, and therefore the cargo oil pump is controlled to stop rotating, fuel oil in the oil receiving ship is prevented from further leaking, and the safety in the refueling process is improved. The leakage problem is reduced.

Description

Technical Field

[0001] The utility model relates to the field of oil tanker operation monitoring, and particularly to an oil spill monitoring and pump stopping system for oil tankers. Background Art

[0002] The process of an oil tanker supplying fuel to a receiving ship is a complex and rigorous one, which requires ensuring safety, accuracy, and efficiency. The oil tanker sails to a predetermined refueling sea area or near the dock according to the dispatching instruction and waits for orders. The loading equipment on the oil tanker is connected to the receiving equipment on the receiving ship, that is, the fuel pipe on the oil tanker is connected to the fuel tank of the receiving ship, ensuring that the connection is firm and checking for any oil leakage. During the process of transporting the oil from the oil tanker to the receiving ship, the flow rate and pressure of the oil are monitored to ensure a smooth loading process.

[0003] A Chinese patent (Publication No.: CN 212195811 U) discloses an emergency cut-off device, system, and ship. The emergency cut-off device is applied to a ship equipped with a liquid cargo tank. When a cut-off signal is triggered on shore or by the cargo oil pump on the ship, it can stop the relevant equipment on shore and achieve an emergency cut-off between the ship and the shore. However, it considers the linkage between the ship and the shore equipment, rather than between the oil tanker and the receiving ship. It still cannot monitor and control the overflow situation of the receiving ship, resulting in the problem that during the process of the oil tanker supplying fuel to the receiving ship, there is still a risk of leakage to the sea after overflow, causing pollution to the sea water and the surrounding environment. Summary of the Utility Model

[0004] The purpose of the utility model is to address the defects existing in the prior art and provide an oil spill monitoring and pump stopping system for oil tankers. It uses a float sensor and a transmitter that are transferred to the receiving ship along with the fuel pipe. When fuel accumulates in the oil collecting tank, it proves that an oil spill has occurred. The float sensor obtains the liquid level in the oil collecting tank of the receiving ship and sends a trigger signal to the transmitter. The transmitter sends the signal in the form of a wireless signal to the receiver, and the receiver sends a pump stopping signal to the controller of the cargo oil pump, thereby controlling the cargo oil pump to stop rotating, avoiding further leakage of fuel in the receiving ship, improving the safety during the refueling process, and reducing the leakage problem.

[0005] To achieve the above purpose, the following technical solutions are adopted:

[0006] An oil spill monitoring and pump stopping system for oil tankers, comprising:

[0007] A float sensor, provided with a magnetic suction base and connected to the transmitter through a cable. The float sensor obtains the liquid level data in the oil collecting tank where it is located and transmits it to the transmitter. The float sensor and the transmitter are transferred between the oil tanker and the receiving ship along with the fuel pipe;

[0008] The cargo oil pump has its output end connected to the fuel filling pipe. The cargo oil pump is connected to a receiver, and the receiver is communicatively connected to a transmitter. The receiver is used to transmit a signal to the controller of the cargo oil pump to control the start and stop of the cargo oil pump.

[0009] Further, the float sensor is adsorbed and fixed in the oil collecting tank through a magnetic adsorption base. The float of the float sensor can move vertically under the action of liquid buoyancy and trigger. It is used to output an oil spill signal to the transmitter when the float sensor is triggered, and the bottom of the movement path of the float is located at the bottom of the oil collecting tank.

[0010] Further, the transmitter includes a first microprocessor. One pin of the first microprocessor is connected to the transmitter switch, another pin of the first microprocessor is connected to the float sensor through a cable, another pin of the first microprocessor is connected to the transmitter power indicator light, another pin of the first microprocessor is connected to the transmitter working indicator light, and another pin of the first microprocessor is connected to the transmitter working indication buzzer.

[0011] Further, the pin of the first microprocessor is also connected to a transmitting module, and the transmitting module of the transmitter communicates wirelessly with the receiving module of the receiver.

[0012] Further, the receiver includes a second microprocessor. One pin of the second microprocessor is connected to the receiver switch, another one is connected to the receiving module, another pin of the second microprocessor is connected to the receiver power indicator light, another pin of the second microprocessor is connected to the receiver working indicator light, and another pin of the second microprocessor is connected to the receiver working indication buzzer.

[0013] Further, another pin of the receiver is also connected to the controller of the cargo oil pump, and is used to send a pump stop signal to the controller after receiving the transmitter signal.

[0014] Further, the controller of the cargo oil pump is connected to a relay. After the controller receives the signal sent by the receiver, it controls the relay to work to stop the operation of the cargo oil pump.

[0015] Further, the transmitter is provided with a first power source. The first power source supplies power to the transmitter and the float sensor through a cable, and the first power source is a nickel-cadmium battery power source.

[0016] Further, the receiver is connected to the controller of the cargo oil pump, and the receiver draws power from the controller of the cargo oil pump, and the controller is powered by the power supply of the fueling ship.

[0017] Further, the fuel filling pipe is connected to the float sensor and the transmitter through a flexible cable.

[0018] Compared with the prior art, the advantages and positive effects of the present utility model are:

[0019] In view of the problem that current oil tankers are prone to overflow during refueling, resulting in fuel leakage, a float sensor and a transmitter that are transferred to the oil tanker along with the refueling pipe are adopted. When fuel accumulates in the oil collecting tank, it proves that an oil spill has occurred. The float sensor obtains the liquid level in the oil collecting tank of the oil tanker and sends a trigger signal to the transmitter. The transmitter sends the signal to the receiver in the form of a wireless signal, and the receiver sends a pump stop signal to the controller of the cargo oil pump, thereby controlling the cargo oil pump to stop rotating, avoiding further fuel leakage in the oil tanker, improving the safety during the refueling process, and reducing leakage problems. Brief Description of the Drawings

[0020] The attached drawings forming a part of this utility model are used to provide a further understanding of this utility model. The schematic embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 It is a schematic diagram of the oil spill monitoring and pump stop system for an oil tanker in an embodiment of this utility model.

[0022] Figure 2 It is a schematic diagram of the circuit structure of the transmitter in an embodiment of this utility model.

[0023] Figure 3 It is a schematic diagram of the circuit structure of the receiver in an embodiment of this utility model.

[0024] Figure 4 It is a schematic diagram of the circuit structure of the cargo oil pump in an embodiment of this utility model.

[0025] In the figure, 1. Float sensor, 2. Transmitter, 3. Transmitting module, 4. Receiving module, 5. Receiver, 6. Cargo oil pump, 7. Controller, 8. First microprocessor, 9. Transmitter power indicator light, 10. Transmitter working indicator light, 11. Transmitter working indicating buzzer, 12. Second microprocessor, 13. Receiver power indicator light, 14. Receiver working indicator light, 15. Receiver working indicating buzzer, 16. Transmitter switch, 17. Receiver switch. Detailed Embodiment

[0026] In a typical embodiment of this utility model, as Figures 1 - 4 shown, an oil spill monitoring and pump stop system for an oil tanker is proposed.

[0027] Currently, during the refueling process of a refueling ship to a receiving ship, due to the untimely monitoring of the refueling process on the receiving ship, it is easy to occur fuel tank overflow. And because the refueling speed is relatively fast, the oil collecting tank for temporarily storing the overflow fuel will be quickly filled, resulting in fuel leakage and causing seawater pollution. Based on this, this embodiment provides an oil spill monitoring and pump stopping system for oil tankers, which adopts a float sensor 1 and a transmitter 2 that are transferred to the receiving ship along with the refueling pipe. When refueling, the float sensor 1 and the transmitter 2 are transferred to the receiving ship for installation. When fuel accumulates in the oil collecting tank, it proves that an oil spill has occurred. The float sensor 1 obtains the liquid level in the oil collecting tank of the receiving ship and sends a trigger signal to the transmitter 2. The transmitter 2 sends the signal in the form of a wireless signal to the receiver 5, and the receiver 5 sends a pump stopping signal to the controller 7 of the cargo oil pump 6, thereby controlling the cargo oil pump 6 to stop rotating and avoiding further fuel leakage in the receiving ship.

[0028] As Figure 1 shown, the oil spill monitoring and pump stopping system for oil tankers mainly includes a float sensor 1, a transmitter 2, a receiver 5 and a controller 7. Among them, the float sensor 1 is provided with a magnetic base and is connected to the transmitter 2 through a cable. The float sensor 1 obtains the liquid level data in the oil collecting tank where it is located and transmits it to the transmitter 2. The float sensor 1 and the transmitter 2 are transferred between the refueling ship and the receiving ship along with the refueling pipe; the output end of the cargo oil pump 6 is connected to the refueling pipe, the cargo oil pump 6 is connected to the receiver 5, and the receiver 5 is communicatively connected to the transmitter 2. The receiver 5 is used to send a signal to the controller 7 of the cargo oil pump 6 to control the start and stop of the cargo oil pump 6.

[0029] In this embodiment, when an oil spill occurs during the refueling process of the receiving ship, the float sensor 1 installed in the oil collecting tank of the receiving ship sends an oil spill signal to the transmitter 2. The transmitter 2 sends a wireless signal. After the receiver 5 receives the signal, it sends a pump stopping signal to the controller 7 of the cargo oil pump 6, and the controller 7 controls the cargo oil pump 6 to stop rotating, thereby stopping the refueling.

[0030] The float sensor 1 is adsorbed and fixed in the oil collecting tank through a magnetic base. The float of the float sensor 1 can be affected by the buoyancy of the liquid and move vertically to trigger, and is used to output an oil spill signal to the transmitter 2, and the bottom of the movement path of the float is located at the bottom of the oil collecting tank. Among them, the float sensor 1 serves as an oil spill sensor, and the transmitter 2 is provided with pins as cable interfaces. One end of the cable is connected to the transmitter 2, and the other end is connected to the float sensor 1.

[0031] The float sensor 1 adopts a float type liquid level sensor, and realizes the measurement of liquid level by the up and down movement of the float. When the liquid level rises, the float will rise accordingly; conversely, when the liquid level drops, the float will also drop. A magnet is usually installed inside the float. When the position of the float changes, the magnet will drive the magnetic sensor (such as a reed switch) to generate a signal, thereby realizing the measurement and monitoring of the liquid level. The float sensor 1 is generally composed of a float, a guide rod (or guide shaft), a magnetic sensor (such as a reed switch), a shell and other parts. The float is usually made of lightweight materials so that it can float freely with the change of liquid level; the guide rod is used to fix the float and guide its up and down movement; the magnetic sensor is used for the float position and outputs the corresponding signal. In this embodiment, when the overflowed fuel gradually accumulates in the oil collection tank, the float is floated out of the initial position, the float sensor 1 is triggered, and a signal is sent to the transmitter 2.

[0032] The transmitter 2 includes a first microprocessor 8, one pin of the first microprocessor 8 is connected to the transmitter switch 16, another pin of the first microprocessor 8 is connected to the float sensor 1 through a cable, another pin of the first microprocessor 8 is connected to the transmitter power indicator light 9, another pin of the first microprocessor 8 is connected to the transmitter working indicator light 10, and another pin of the first microprocessor 8 is connected to the transmitter working indication buzzer 11. The pins of the first microprocessor 8 are also connected to the transmitting module 3, and the transmitting module 3 communicates wirelessly with the receiving module 4 of the receiver 5.

[0033] In this embodiment, Figure 2 As shown, the control of the transmitter 2 is performed by the 8051 microprocessor as the first microprocessor 8 for input and output control. When the ON / OFF button of the transmitter switch 16 is pressed, the key switch value is input into the first microprocessor 8, and the first microprocessor 8 starts the working mode; the first microprocessor 8 outputs a voltage at the power indicator LED lamp end, and the transmitter working indicator 10 is lit.

[0034] When oil spills, the float floats up, and the pin connected to the float sensor 1 inputs the signal into the first microprocessor 8, and the first microprocessor 8 controls the transmitter module 3 to transmit the signal, and the signal is sent through the antenna. At the same time, the first microprocessor 8 controls the transmitter 2 to work, lights up the LED indicator light, and controls the transmitter work indication buzzer 11 to sound.

[0035] The float sensor 1 is connected to the transmitter 2 by a cable, and the transmitter 2 is equipped with an aviation socket to connect with the float sensor 1.

[0036] like Figure 3As shown, the receiver 5 includes a second microprocessor 12. One pin of the second microprocessor 12 is connected to the receiver switch 17, another is connected to the receiving module 4, another pin is connected to the receiver power indicator 13, another pin is connected to the receiver working indicator 14, and another pin is connected to the receiver working indicating buzzer 15. Another pin of the receiver 5 is also connected to the controller 7 of the cargo oil pump 6 for sending a pump stop signal to the controller 7.

[0037] In this embodiment, as Figure 3 shown, the receiver 5 uses the 8051 microprocessor as the second microprocessor 12 for input and output control. When the ON / OFF button of the receiver switch 17 is pressed, the button switch quantity is input to the second microprocessor 12, and the second microprocessor 12 starts the working mode; the power indicator LED terminal of the second microprocessor 12 outputs voltage to light up the receiver working indicator 14.

[0038] After the receiving module 4 receives the oil spill signal through the antenna, it outputs an active signal to the second microprocessor 12. At the same time, the second microprocessor 12 controls the receiver working indicator 14 to work and the power LED indicator. And it controls the receiver working indicating buzzer 15 to emit a beep.

[0039] Among them, the transmitting frequency and the receiving frequency are set to 433 MHz.

[0040] The controller 7 of the cargo oil pump 6 is connected with a relay. After the controller 7 receives the signal sent by the receiver 5, it controls the relay to work to stop the operation of the cargo oil pump 6.

[0041] The transmitter 2 is provided with a first power supply. The first power supply supplies power to the transmitter 2 and the float sensor 1 through a cable. After the transmitter 2 is used, the power supply is turned off. When the power is found to be insufficient, it needs to be charged in time. The transmitter 2 is equipped with a charger. The receiver 5 is connected to the controller 7 of the cargo oil pump 6, and the receiver 5 draws power from the controller 7 of the cargo oil pump 6. The first power supply is a nickel-cadmium battery power supply and can be charged and discharged. The controller 7 draws power from the power supply of the refueling ship.

[0042] The fuel pipe is connected to the float sensor 1 and the transmitter 2 through a flexible cable. The flexible cable can be a rope, a steel wire rope, etc., which can facilitate transfer along with the fuel pipe and also avoid being left on the oil receiving ship after refueling is completed.

[0043] In this embodiment, the oil spill monitoring and pump stop system for oil tankers can prevent leakage and overflow accidents during the refueling operation of oil tankers, maximize the prevention of marine pollution caused by oil leakage, and minimize the pollution treatment cost. As Figure 4As shown in the figure, the oil spill monitoring and pump stopping system for oil tankers can achieve leakage protection. The leakage monitoring part consists of a float sensor 1, a transmitter 2, and a receiver 5. When a leakage accident occurs, the transmitter 2 sends a wireless signal to the receiver 5, and the receiver 5 issues an alarm signal and controls the oil pump to stop running.

[0044] As Figure 4 shown in the figure, DRK is the receiver 5, which is connected to the controller 7 of the oil pump. The contacts ①② of DRK draw power from the power supply line. When the receiver 5 receives the signal output by the transmitter 2, the contacts ④⑤ of DRK are connected, causing DK to be powered on.

[0045] Among them, as Figure 4 shown in the lower left of the figure, Pump No. 1, Pump No. 2, and Pump No. 3 are respectively connected to the power supply line. Among them, Pump No. 1 is connected to the power supply line through k1-1. When k1-1 is cut off, Pump No. 1 stops working. Among them, Pump No. 2 is connected to the power supply line through k2-1. When k2-1 is cut off, Pump No. 2 stops working. Among them, Pump No. 3 is connected to the power supply line through k3-1. When k3-1 is cut off, Pump No. 3 stops working. The relay corresponding to controlling the disconnection and connection of k1-1 is k1, the relay corresponding to controlling the disconnection and connection of k2-1 is k2, and the relay corresponding to controlling the disconnection and connection of k3-1 is k3.

[0046] k1 is connected to the power supply line through DK-1, k2 is connected to the power supply line through DK-2, k3 is connected to the power supply line through DK-3. k1, k2, and k3 are distributed in parallel. In addition, k4 is also connected in parallel, and k4 is connected to the power supply line through DK-4. The switches DK-1, DK-2, DK-3, and DK-4 are jointly controlled by the relay DK. When DRX is powered on, DK-1, DK-2, DK-3, and DK-4 are respectively attracted, causing k1, k2, k3, and k4 to be powered on simultaneously.

[0047] When k1, k2, and k3 are powered on, k1-1, k2-1, and k3-1 are disconnected, causing Pump No. 1, Pump No. 2, and Pump No. 3 to stop running, achieving the purpose of stopping the pump. In addition, to meet the alarm requirements, the alarm H is connected to the power supply line through the switch k4-1. When k4 is powered on, the alarm is triggered.

[0048] As Figure 4 shown in the figure, fuses RL1 and RL2 are also connected to the power supply line, and an air switch Q is provided on the power supply line.

[0049] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil spill monitoring and pump stop system for oil tankers, characterized in that: include: The float sensor is equipped with a magnetic base and is connected to the transmitter via a cable. The float sensor obtains the liquid level data in the oil sump and transmits it to the transmitter. The float sensor and the transmitter are transferred between the refueling ship and the receiving ship along the refueling pipe. The cargo oil pump, the output end is connected to the refueling pipe, the cargo oil pump is connected to the receiver, the receiver is communicated with the transmitter, and the receiver is used to transmit signals to the controller of the cargo oil pump to control the start and stop of the cargo oil pump.

2. The oil spill monitoring and pump stopping system for oil tankers according to claim 1, characterized in that: The float sensor is fixed in the oil collecting tank by a magnetic base. The float of the float sensor can be moved vertically and triggered by the buoyancy of the liquid, and is used to output an oil spill signal to the transmitter when the float sensor is triggered, and the bottom of the float's movement path is located at the bottom of the oil collecting tank.

3. The oil spill monitoring and pump stopping system for oil tankers according to claim 1, characterized in that: The transmitter includes a first microprocessor, one pin of the first microprocessor is connected to the transmitter switch, another pin of the first microprocessor is connected to the float sensor through a cable, another pin of the first microprocessor is connected to the transmitter power indicator light, another pin of the first microprocessor is connected to the transmitter working indicator light, and another pin of the first microprocessor is connected to the transmitter working indication buzzer.

4. The oil spill monitoring and pump stopping system for oil tankers according to claim 3, characterized in that: The pins of the first microprocessor are also connected to a transmitting module, and the transmitting module of the transmitter communicates wirelessly with the receiving module of the receiver.

5. The oil spill monitoring and pump stopping system for oil tankers according to claim 1, characterized in that: The receiver includes a second microprocessor, one pin of the second microprocessor is connected to the receiver switch, another pin of the second microprocessor is connected to the receiving module, another pin of the second microprocessor is connected to the receiver power indicator light, another pin of the second microprocessor is connected to the receiver working indicator light, and another pin of the second microprocessor is connected to the receiver working indication buzzer.

6. The oil spill monitoring and pump stopping system for oil tankers according to claim 5, characterized in that: Another pin of the receiver is also connected to the controller of the cargo oil pump, and is used to send a pump stop signal to the controller after receiving the transmitter signal.

7. The oil spill monitoring and pump stopping system for oil tankers according to claim 1, characterized in that: The controller of the cargo oil pump is connected to a relay. After receiving a signal from the receiver, the controller controls the relay to work so as to stop the operation of the cargo oil pump.

8. The oil spill monitoring and pump stopping system for oil tankers according to claim 1, characterized in that: The transmitter is provided with a first power supply, and the first power supply supplies power to the transmitter and the float sensor through a cable, and the first power supply is a nickel-cadmium battery power supply.

9. The oil spill monitoring and pump stopping system for oil tankers according to claim 1, characterized in that: The receiver is connected to the controller of the cargo oil pump, and the receiver draws power from the controller of the cargo oil pump, and the controller is powered by the power supply of the refueling ship.

10. The oil spill monitoring and pump stopping system for oil tankers according to claim 1, characterized in that: The refueling pipe is connected to the float sensor and the transmitter through a flexible cable.

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