Emergency cut-off device, system and ship

Abstract

The present invention provides an emergency cut-off device, a system and a ship, which relate to the technical field of mechanical equipment. The emergency cut-off device is applied to a ship provided with a liquid cargo tank. The emergency cut-off device includes a main control chip, a first communication device and a cargo oil pump control device respectively connected to the main control chip. The first communication device is connected to a second communication device on shore. The cargo oil pump control device is connected to the cargo oil pump on the ship. When a first cut-off signal is triggered on shore, the first cut-off signal can be transmitted to the emergency cut-off device on the ship through the second communication device on shore, thereby triggering the cargo oil pump on the ship to stop working. When the cargo oil pump control device on the ship triggers a second cut-off signal, the second cut-off signal can be transmitted to the second communication device on shore through the first communication device, causing the relevant equipment on shore to stop working, thus realizing the emergency cut-off between the ship and the shore.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and in particular to an emergency cut-off device, system and ship. Background Art

[0002] An oil tanker refers to a "ship" that transports oil and oil products (such as diesel, gasoline, and heavy oil, etc.). A chemical tanker should be defined as a liquid cargo ship, which is a cargo ship built or modified for transporting various toxic, flammable, volatile or corrosive chemical substances.

[0003] Ships such as oil tankers and chemical tankers all have relatively high transportation risks. It is necessary to ensure the safety of the ship during the oil cargo transportation with the onshore terminal, and stop the flow of liquid cargo and the vapor of the cargo volatilization in case of emergency, so that the cargo operating system is in a safe and static state. However, the current emergency cut-off devices on ships cannot achieve the emergency cut-off between the ship and the shore. Summary of the Invention

[0004] The purpose of the present invention is to provide an emergency cut-off device, system and ship to achieve the emergency cut-off between the ship and the shore.

[0005] An embodiment of the present invention provides an emergency cut-off device, which is applied to a ship provided with a liquid cargo tank; the emergency cut-off device includes a main control chip, and a first communication device and a cargo oil pump control device respectively connected to the main control chip;

[0006] The first communication device is connected to a second communication device on the shore, and the first communication device is used to send a first cut-off signal transmitted by the second communication device to the main control chip; the main control chip is used to send a first stop instruction to the cargo oil pump control device when receiving the first cut-off signal; the cargo oil pump control device is connected to the cargo oil pump on the ship, and the cargo oil pump control device is used to control the cargo oil pump to stop working when receiving the first stop instruction;

[0007] The cargo oil pump control device is further used to send a stop working signal to the main control chip; the main control chip is further used to send a second cut-off signal to the first communication device when receiving the stop working signal; the first communication device is further used to transmit the second cut-off signal to the second communication device.

[0008] Further, the emergency cut-off device further includes a cut-off signal input device connected to the main control chip;

[0009] The cut-off signal input device is used to send a third cut-off signal to the main control chip; the main control chip is further used to send a second stop instruction to the cargo oil pump control device when receiving the third cut-off signal, and transmit the third cut-off signal to the second communication device through the first communication device; the cargo oil pump control device is further used to control the cargo oil pump to stop working when receiving the second stop instruction.

[0010] Further, the cut-off signal input device includes a manual cut-off button.

[0011] Further, the cut-off signal input device further includes a high liquid level monitoring device;

[0012] The high liquid level monitoring device is arranged in the liquid cargo tank, and is used to send the third cut-off signal to the main control chip when monitoring that the liquid level height of the liquid cargo tank reaches a preset height value.

[0013] Further, the emergency cut-off device further includes an alarm device connected to the main control chip; the alarm device is arranged in the cargo operation area of the ship.

[0014] Further, the emergency cut-off device further includes a third-party monitoring system connected to the main control chip;

[0015] The main control chip is further used to send an alarm signal to the third-party monitoring system when receiving the first cut-off signal and / or the second cut-off signal.

[0016] Further, the third-party monitoring system includes a cargo control console system and / or an engine room monitoring system.

[0017] Further, the model of the main control chip includes LM224N.

[0018] An embodiment of the present invention further provides an emergency cut-off system, including the above-mentioned emergency cut-off device, and further including a second communication device; the second communication device is connected to the first communication device in the emergency cut-off device.

[0019] An embodiment of the present invention further provides a ship, including the above-mentioned emergency cut-off device, and further including a hull provided with a liquid cargo tank; the emergency cut-off device is arranged inside the hull.

[0020] The emergency cut-off device, system and ship provided by the embodiments of the present invention. The emergency cut-off device is applied to a ship provided with a liquid cargo tank; the emergency cut-off device includes a main control chip, a first communication device and a cargo oil pump control device respectively connected to the main control chip; the first communication device is connected to a second communication device on shore, and the first communication device is used to send a first cut-off signal transmitted by the second communication device to the main control chip; the main control chip is used to send a first stop instruction to the cargo oil pump control device when receiving the first cut-off signal; the cargo oil pump control device is connected to the cargo oil pump on the ship, and the cargo oil pump control device is used to control the cargo oil pump to stop working when receiving the first stop instruction; the cargo oil pump control device is also used to send a stop working signal to the main control chip; the main control chip is also used to send a second cut-off signal to the first communication device when receiving the stop working signal; the first communication device is also used to transmit the second cut-off signal to the second communication device. In this way, when the first cut-off signal is triggered on shore, the first cut-off signal can be transmitted to the emergency cut-off device on the ship through the second communication device on shore, so as to trigger the cargo oil pump on the ship to stop working; when the second cut-off signal is triggered by the cargo oil pump control device on the ship, the second cut-off signal can be transmitted to the second communication device on shore through the first communication device, so that the relevant devices on shore stop working, thus realizing the emergency cut-off between the ship and the shore. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of an emergency cut-off device provided by an embodiment of the present invention;

[0023] Figure 2 It is a schematic structural diagram of another emergency cut-off device provided by an embodiment of the present invention;

[0024] Figure 3 It is a schematic structural diagram of another emergency cut-off device provided by an embodiment of the present invention;

[0025] Figure 4 It is a schematic structural diagram of an emergency cut-off system provided by an embodiment of the present invention.

[0026] Icons: 100 - Main control chip; 200 - First communication device; 201 - ESL control unit; 300 - Cargo oil pump control device; 400 - Cut-off signal input device; 401 - Manual cut-off button; 402 - High liquid level monitoring device; 500 - Alarm device; 501 - Acoustic and optical alarm; 600 - Third-party monitoring system; 601 - Cargo control console system; 602 - Engine room monitoring system; 700 - ESD control box; 800 - Ship power supply; 10 - Emergency cut-off device; 20 - Second communication device. Detailed implementation manners

[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] OCIMF (Oil Companies International Marine Forum) was established in 1970. Although OCIMF is a voluntary association composed of oil companies sharing common interests in the shipping and terminal handling of crude oil, refined oil, petrochemical products, and gas, the guidelines and guides it formulates regarding the safety of oil transportation and terminal handling operations can serve as a useful supplement to technical standards such as international conventions, rules, and classification society specifications, and play an active and effective role in ensuring oil transportation safety. Although it is not mandatory, it is highly respected and recognized in the industry. OCIMF mainly provides various rules, guidelines, procedures, assessment software, databases, and standards for oil companies regarding the safety and environmental protection of shipping and terminal operations. It has numerous publications, most of which are edited by OCIMF, and some are co-edited by OCIMF and other institutions, such as ICS (International Chamber of Shipping Limited), IAPH (International Association of Ports and Harbors), SIGTTO (Society of International Gas Tanker and Terminal Operators), and CDI (Chemical Distribution Institute).

[0029] According to the relevant specifications, rule guides of OCIMF (2017) / SIGTTO / CDI, all oil tankers / chemical tankers need to install a cargo transfer ship-shore emergency automatic cut-off connection system.

[0030] CCS (China Classification Society) also issued the "Guidance Document on the Declaration of Compliance with the Recommendations for Manifolds and Associated Equipment on Oil Tankers and Chemical Tankers" of OCIMF on January 1, 2019, which mentioned that for all oil tankers and chemical tankers with construction contracts signed on or after January 1, 2019 (the applicable tonnage has been extended from the original "only applicable to those greater than 16,000 SDWT (Summer Deadweight)" to all tonnages), the requirement of synchronously installing a cargo transfer emergency shutdown system (this requirement was previously only applicable to liquefied gas carriers) is needed.

[0031] Currently, the emergency shutdown devices on ships can only achieve the emergency shutdown of relevant equipment on the ship, but cannot achieve the emergency shutdown between the ship and the shore. Based on this, an emergency shutdown device, system and ship provided by the embodiments of the present invention can achieve the emergency shutdown between the ship and the shore.

[0032] For the convenience of understanding this embodiment, first, an emergency shutdown device disclosed in the embodiments of the present invention will be introduced in detail.

[0033] The embodiments of the present invention provide an emergency shutdown device, which is applied to a ship provided with a liquid cargo tank. The ship can be an oil tanker or a chemical tanker, such as a liquefied petroleum gas carrier or a liquefied ethylene carrier, etc. Refer to Figure 1 As shown in the structural schematic diagram of an emergency shutdown device, the emergency shutdown device includes a main control chip 100, and a first communication device 200 and a cargo oil pump control device 300 respectively connected to the main control chip 100.

[0034] The above-mentioned first communication device 200 is connected to a second communication device on the shore. The first communication device 200 is used to send the first shutdown signal transmitted by the second communication device to the main control chip 100; the main control chip 100 is used to send a first stop instruction to the cargo oil pump control device 300 when receiving the first shutdown signal; the cargo oil pump control device 300 is connected to the cargo oil pump on the ship, and the cargo oil pump control device 300 is used to control the cargo oil pump to stop working when receiving the first stop instruction. In this way, when the first shutdown signal is triggered on the shore, the first shutdown signal can be transmitted to the emergency shutdown device on the ship through the second communication device on the shore, so as to trigger the cargo oil pump on the ship to stop working.

[0035] The above-mentioned cargo oil pump control device 300 is also used to send a stop working signal to the main control chip 100; the main control chip 100 is also used to send a second cut-off signal to the first communication device 200 when receiving the stop working signal; the first communication device 200 is also used to transmit the second cut-off signal to the second communication device. In this way, when the cargo oil pump control device 300 on the ship triggers the second cut-off signal, the second cut-off signal can be transmitted to the second communication device on the shore through the first communication device 200, so that the relevant devices on the shore stop working.

[0036] The above-mentioned first communication device 200 and the second communication device can be connected by wired communication or wireless communication. For example, the first communication device 200 is connected to the second communication device through a SIGTTO (Society of International Gas Tanker and Terminal Operators) 5-core junction box. The SIGTTO 5-core junction box uses a SIGTTO 5-core connector, and the connector technical specifications can comply with the OCIMF / SIGTTO standard, so as to ensure successful docking with international terminals, ensure current isolation between the first communication device 200 and the second communication device, and achieve automatic and simultaneous transmission of the cut-off signals of both parties without delay. Further, when the cable in the SIGTTO 5-core junction box is not long enough, the second communication device can be connected through the cable on the SIGTTO 5-core cable reel. Another example is that the first communication device 200 is connected to the second communication device through a wireless communication junction box, which can avoid cumbersome wiring operations.

[0037] The above-mentioned cargo oil pump control device 300 can correspond to the cargo oil pumps one by one, and the number of cargo oil pump control devices 300 is the same as the number of cargo oil pumps, that is, the cargo oil pump control device 300 can be one or more. The emergency cut-off device can also only use one cargo oil pump control device 300, and multiple cargo oil pumps are all connected to the cargo oil pump control device 300.

[0038] Optionally, the model of the above-mentioned main control chip 100 can be LM224N.

[0039] For the emergency cut-off device provided by the embodiment of the present invention, when the first cut-off signal is triggered on the shore, the first cut-off signal can be transmitted to the emergency cut-off device on the ship through the second communication device on the shore, so as to trigger the cargo oil pump on the ship to stop working; when the cargo oil pump control device 300 on the ship triggers the second cut-off signal, the second cut-off signal can be transmitted to the second communication device on the shore through the first communication device 200, so that the relevant devices on the shore stop working, thus realizing emergency cut-off between the ship and the shore.

[0040] See Figure 2The structural diagram of another emergency disconnection device shown in the figure, the above-mentioned first communication device 200 can be an ESL (Emergency Shutdown Link) control unit 201. The main control chip 100 and the ESL control unit 201 can exchange data through a hard point connection. When the ESD (Emergency Shutdown) signal (i.e., the first disconnection signal) is triggered on the shore, the relevant equipment on the shore stops, and the ESD signal is transmitted to the main control chip 100 through the ESL control unit 201 on the ship, thereby triggering the relevant equipment on the ship (such as the above-mentioned cargo oil pump control device 300) to stop working. Conversely, when the ESD signal is triggered on the ship, the relevant equipment on the ship stops, and the ESD signal is transmitted to the ESL control unit 201 through the main control chip 100 on the ship, and then transmitted to the shore, so that the relevant equipment on the shore stops working, that is, the signal triggering of any party of the ship and the shore will cause both parties to work in linkage, thereby realizing the emergency disconnection between the ship and the shore.

[0041] Alternatively, if Figure 2 As shown, the emergency shut-off device further includes a shut-off signal input device 400 connected to the main control chip 100; the shut-off signal input device 400 is used to send a third shut-off signal to the main control chip 100; the main control chip 100 is also used to send a second stop command to the cargo oil pump control device 300 when receiving the third shut-off signal, and transmit the third shut-off signal to the second communication device through the first communication device 200 (such as the ESL control unit 201); the cargo oil pump control device 300 is also used to control the cargo oil pump to stop working when receiving the second stop command.

[0042] For further information, see Figure 3 Another schematic diagram of the structure of an emergency cut-off device is shown, wherein the cut-off signal input device 400 includes a manual cut-off button 401. The manual cut-off button 401 can be set in a dangerous area or at an entrance or exit on a ship to facilitate manual triggering by staff and ensure safety control of the site at the staff workplace. The manual cut-off button 401 can be one or more, preferably at least two, and the two manual cut-off buttons 401 are respectively set on the port side and the starboard side of the ship. In this way, the manual cut-off button 401 triggering of the ESD signal is realized.

[0043] Further, if Figure 3 As shown, the above-mentioned cut-off signal input device 400 also includes a high liquid level monitoring device 402; the high liquid level monitoring device 402 is arranged in the liquid cargo tank of the ship, and the high liquid level monitoring device 402 is used to send a third cut-off signal to the main control chip 100 when the liquid level of the liquid cargo tank reaches a preset height value. In this way, the high liquid level trigger of the ESD signal is realized.

[0044] Alternatively, if Figure 2As shown, the above-mentioned emergency cut-off device further includes an alarm device 500 connected to the main control chip 100; the main control chip 100 is further configured to activate the alarm device 500 when receiving the first cut-off signal and / or the second cut-off signal. The alarm device 500 is arranged in the cargo operation area of the ship so that the staff can timely detect the abnormal situation between the ship and the shore.

[0045] Further, as Figure 3 shown, the above-mentioned alarm device 500 may adopt an audible and visual alarm 501. Preferably, there are at least two audible and visual alarms 501, and the two audible and visual alarms 501 are respectively arranged on the port side and the starboard side of the ship.

[0046] Optionally, as Figure 2 shown, the above-mentioned emergency cut-off device further includes a third-party monitoring system 600 connected to the main control chip 100; the main control chip 100 is further configured to send an alarm signal to the third-party monitoring system 600 when receiving the first cut-off signal and / or the second cut-off signal, so that relevant personnel can timely detect the abnormal situation between the ship and the shore through the third-party monitoring system 600.

[0047] Further, as Figure 3 shown, the above-mentioned third-party monitoring system 600 may include a cargo control desk system 601 and an engine room monitoring system 602.

[0048] Optionally, as Figure 3As shown in the figure, the above-mentioned emergency cut-off device further includes an ESD control box 700, which can be installed in the cargo control room or other safe areas on the ship. The main control chip 100 can be arranged inside the ESD control box 700; a power input interface is arranged on the ESD control box 700, and the ship power supply 800 is connected to the main control chip 100 through this power input interface to supply power to the main control chip 100; the ESL control unit 201 is connected to the main control chip 100 through the ESD signal output interface, ESD signal input interface and power output interface on the ESD control box 700; the three cargo oil pump control devices 300 are respectively connected to the main control chip 100 through the three cargo oil pump signal input / output interfaces on the ESD control box 700; the two manual cut-off buttons 401 are respectively connected to the main control chip 100 through the two emergency stop signal input interfaces on the ESD control box 700; the high liquid level monitoring device 402 is connected to the main control chip 100 through the high level alarm signal input interface on the ESD control box 700; the two sound and light alarms 501 are respectively connected to the main control chip 100 through the two sound and light alarm output interfaces (active output interfaces) on the ESD control box 700; the cargo control console system 601 and the engine room monitoring system 602 are respectively connected to the main control chip 100 through the two alarm signal output interfaces on the ESD control box 700; in addition, other signal output interfaces are also arranged on the ESD control box 700, and this other signal output interface can be used as a spare output interface.

[0049] The ESL control unit 201, cargo oil pump control device 300, manual cut-off button 401, high liquid level monitoring device 402, sound and light alarm 501, cargo control console system 601 and engine room monitoring system 602 in the above-mentioned emergency cut-off device can all be connected to the ESD control box 700 through hard points.

[0050] It should be noted that although Figure 3 the ESL control unit 201 in

[0051] is arranged outside the ESD control box 700, the protection scope of the present invention is not limited thereto. In other embodiments, the ESL control unit 201 can also be arranged inside the ESD control box 700 together with the main control chip 100. Figure 4 An embodiment of the present invention also provides an emergency cut-off system. Referring to

[0052] the structural schematic diagram of an emergency cut-off system shown in

[0053] the figure, this emergency cut-off system includes the above-mentioned emergency cut-off device 10, and also includes a second communication device 20; the second communication device 20 is connected to the first communication device 200 in the emergency cut-off device 10.

[0052] The above-mentioned emergency cut-off system can reliably transmit the ESD signals between the ship and the shore, and can quickly, automatically and controllably perform the closing operations of relevant equipment in case of emergency.

[0053] The emergency cut-off system provided in this embodiment has the same implementation principle and technical effects as those of the aforementioned emergency cut-off device embodiment. For the sake of brief description, for matters not mentioned in the emergency cut-off system embodiment, reference may be made to the corresponding contents in the aforementioned emergency cut-off device embodiment.

[0054] An embodiment of the present invention further provides a ship, which includes the above-mentioned emergency cut-off device and a hull provided with a liquid cargo tank; the emergency cut-off device is arranged in the hull.

[0055] Optionally, the above-mentioned ship may be an oil tanker or a chemical tanker.

[0056] The ship provided in this embodiment has the same implementation principle and technical effects as those of the aforementioned emergency cut-off device embodiment. For the sake of brief description, for matters not mentioned in the ship embodiment, reference may be made to the corresponding contents in the aforementioned emergency cut-off device embodiment.

[0057] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0058] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An emergency cut-off device, characterized in that, Applied to a ship equipped with a liquid cargo tank; the emergency cut-off device includes a main control chip, a first communication device and a cargo oil pump control device respectively connected to the main control chip; The first communication device is connected to a second communication device on shore, and the first communication device is used to send a first cut-off signal transmitted by the second communication device to the main control chip; the main control chip is used to send a first stop instruction to the cargo oil pump control device when receiving the first cut-off signal; the cargo oil pump control device is connected to the cargo oil pump on the ship, and the cargo oil pump control device is used to control the cargo oil pump to stop working when receiving the first stop instruction; The cargo oil pump control device is further used to send a stop working signal to the main control chip; the main control chip is further used to send a second cut-off signal to the first communication device when receiving the stop working signal; the first communication device is further used to transmit the second cut-off signal to the second communication device; The first communication device is an emergency cut-off connection ESL control unit, and data is exchanged between the ESL control unit and the main control chip through hard-point connection.

2. The emergency cut-off device according to claim 1, characterized in that, The emergency cut-off device further includes a cut-off signal input device connected to the main control chip; The cut-off signal input device is used to send a third cut-off signal to the main control chip; the main control chip is further used to send a second stop instruction to the cargo oil pump control device when receiving the third cut-off signal, and transmit the third cut-off signal to the second communication device through the first communication device; the cargo oil pump control device is further used to control the cargo oil pump to stop working when receiving the second stop instruction.

3. The emergency cut-off device according to claim 2, characterized in that, The cut-off signal input device includes a manual cut-off button.

4. The emergency cut-off device according to claim 3, characterized in that, The cut-off signal input device further includes a high liquid level monitoring device; The high liquid level monitoring device is arranged in the liquid cargo tank, and the high liquid level monitoring device is used to send the third cut-off signal to the main control chip when it monitors that the liquid level height of the liquid cargo tank reaches a preset height value.

5. The emergency cut-off device according to claim 1, characterized in that, The emergency cut-off device further includes an alarm device connected to the main control chip; the alarm device is arranged in the cargo operation area of the ship.

6. The emergency cut-off device according to claim 1, wherein, The emergency cut-off device further includes a third-party monitoring system connected to the main control chip; The main control chip is further used to send an alarm signal to the third-party monitoring system when receiving the first cut-off signal and / or the second cut-off signal.

7. The emergency cut-off device according to claim 6, wherein The third-party monitoring system includes a cargo control console system and / or an engine room monitoring system.

8. The emergency cut-off device according to any one of claims 1-7, characterized in that, The model of the main control chip includes LM224N.

9. An emergency cut-off system, characterized in that, Including the emergency cut-off device according to any one of claims 1-8, further including a second communication device; the second communication device is connected to the first communication device in the emergency cut-off device.

10. A ship, characterized in that, Including the emergency cut-off device according to any one of claims 1-8, further including a hull equipped with a liquid cargo tank; the emergency cut-off device is arranged in the hull.

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