Ship supply safety protection device and method

Abstract

The invention discloses a ship supply safety protection device and method. The ship supply safety protection device comprises a supply main pipeline and a supply bypass pipeline which are arranged between a supply ship and an oil receiving ship. A main supply pipeline is formed between a supply port of the oil receiving ship and an oil receiving cabin of the oil receiving ship, and a first on-off valve is arranged on the main supply pipeline and used for controlling on-off of the main supply pipeline. At the downstream of the supply port, the supply main pipeline is communicated with the oil receiving cabin through a supply bypass pipeline; and a second on-off valve is arranged on the supply bypass pipeline and used for controlling the on-off of the supply bypass pipeline. The problem that in the ship supply process in the prior art, the pressure of a supply pipeline is too high due to failure closing of a supply related valve of an oil tanker is solved.

Description

Technical Field

[0001] The present application relates to the technical field of ship safety protection, and in particular to a device and a replenishment method for preventing damage to equipment on a supply ship during a replenishment process. Background Art

[0002] At present, when a ship needs to replenish fuel during a long-distance voyage, a cable connection is usually established between the supply ship and the receiving ship, and a pipeline connection is established between the supply ship and the receiving ship by pulling the supply oil pipe with the help of the cable. The receiving ship is equipped with a special supply oil receiving tank and its corresponding supply pipeline. After all the relevant supply valves on the receiving ship are opened, the receiving ship notifies the supply ship to turn on the fuel supply pump, and the supply ship starts to supply fuel to the receiving ship. After the replenishment is completed, the receiving ship notifies the supply ship to turn off the fuel supply pump. After the fuel supply pump of the supply ship is turned off, the receiving ship closes the relevant supply valves.

[0003] However, this replenishment method has great safety hazards. In order to meet the needs of long-distance replenishment and transportation, the fuel supply pump of the supply ship usually has very high pressure. When the supply valve on the supply pipeline on the receiving ship is damaged and the supply pipeline is blocked, the pressure on the supply pipeline will be too high, thereby causing damage to the fuel supply pump and other equipment on the supply ship.

[0004] There are also some technologies that can be used for automatic quantitative replenishment of ship fuel, reducing manual operations and improving the degree of automation, but the safety of the replenishment process is still not addressed. Summary of the invention

[0005] The purpose of the present application is to provide a ship replenishment safety protection device and method, which aims to solve the problem of excessive pressure in the replenishment pipeline caused by the malfunction and closure of the relevant valves of the receiving ship during the ship replenishment process in the prior art.

[0006] Furthermore, the present invention can prevent the fuel supply pump and other supply ship equipment on the supply ship from being damaged.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: A ship supply safety protection device, characterized in that it comprises a supply main pipeline and a supply bypass pipeline arranged between a supply ship and a receiving ship; A main supply pipeline is formed between the supply port of the oil receiving ship and the oil receiving tank of the oil receiving ship, and a first on-off valve is arranged on the main supply pipeline to control the on-off of the main supply pipeline; Downstream of the replenishing port, the main replenishing pipeline is connected to the oil receiving tank through a replenishing bypass pipeline; a second on-off valve is arranged on the replenishing bypass pipeline to control the on-off of the replenishing bypass pipeline.

[0008] In the above technical solution, one end of the supply bypass pipeline is connected to the supply main pipeline behind the supply port of the oil receiving ship and before the inlet of the first opening and closing valve, and the other end is connected to the oil inlet of the oil receiving tank.

[0009] In the above technical solution, the oil outlet of the supply ship and the supply port of the receiving ship are connected to the main supply pipeline through a supply oil pipe pulled by a cable. On the supply oil pipe, a fuel supply pump is arranged at least upstream of the supply port of the receiving ship.

[0010] In the above technical solution, the supply bypass pipeline and the supply main pipeline are both made of high-pressure resistant materials.

[0011] In the above technical solution, the ship replenishment safety protection device is characterized in that the second opening and closing valve is a manual stop valve that can remain normally open during replenishment.

[0012] The above technical solution also includes at least one pressure monitoring device for monitoring the pressure of the total supply pipeline, and the pressure monitoring device is configured to automatically open the second on-off valve when the pressure of the total supply pipeline exceeds a preset value.

[0013] A ship replenishment system, characterized by comprising any one of the ship replenishment safety protection devices described above.

[0014] A ship, characterized by comprising any one of the ship refueling safety protection devices described above, used for ensuring the safety of the ship when refueling.

[0015] A ship replenishment method using the above-mentioned ship replenishment safety protection device is characterized by comprising the following steps: The oil outlet of the supply ship and the supply port of the receiving ship are connected to the main supply pipeline through a supply oil pipeline pulled by a cable; Open the first on-off valve and the second on-off valve at the same time; or open the first on-off valve first, and then open the second on-off valve after the pressure rises to the set value. The pressure setting value is set by comprehensive judgment based on the tripping pressure of the safety valve of the fuel supply pump of the supply ship and the pressure of the supply pipeline.

[0016] In fact, opening both valves at the same time is sufficient to meet the safety standard, thereby ensuring that both the pipeline and the receiving ship can withstand the high pressure at the outlet of the fuel supply pump 2 (generally 0.5MPa-1Mpa).

[0017] After the receiving ship notifies the supply ship to start supplying, the supply ship starts to supply fuel to the receiving ship; After the replenishment is completed, the supply ship stops replenishing and the receiving ship closes the first on-off valve to cut off the main supply pipeline.

[0018] In the above technical solution, the supply ship cuts off the supply connection with the receiving ship by opening or closing the fuel supply pump.

[0019] A method for constructing a ship replenishment safety protection device is characterized by comprising the steps of constructing a replenishment bypass pipeline and a replenishment bypass switch valve, and installing them between the replenishment main pipe and the oil receiving tank.

[0020] In summary, the present invention relates to a ship replenishment safety protection device and method, which aims to solve the problem of excessive pressure in the replenishment pipeline caused by the failure of the relevant valves of the oil receiving ship to close during the ship replenishment process in the prior art. The device includes a replenishment bypass pipeline and a replenishment bypass switch valve. One end of the replenishment bypass pipeline is connected to the replenishment main pipe behind the oil receiving port of the oil receiving ship, and the other end is connected to the oil inlet of the oil receiving tank. The replenishment bypass switch valve is installed on the replenishment bypass pipeline and is used to keep it in an open state during the replenishment process to prevent the pressure of the supply pipeline from being too high.

[0021] The ship supply safety protection device and method of the present invention, in addition to the basic functions of preventing excessive pressure and protecting equipment, also have the following beneficial effects: Improve refueling efficiency: Through the design of the bypass pipeline, the fuel can be kept flowing even in the event of a valve failure on the receiving vessel, reducing refueling interruptions caused by the failure.

[0022] Reduced maintenance costs: Reduced equipment damage due to overpressure, thereby reducing repair costs and downtime.

[0023] Enhanced operational flexibility: The replenishment bypass on-off valve can be manually controlled, providing operators with more control options to cope with different replenishment situations.

[0024] Improve safety: Reduce the risk of leakage and explosion caused by overpressure and protect the safety of crew members.

[0025] Environmentally friendly: Reduce fuel leakage caused by operational errors or equipment failures, and reduce pollution to the marine environment.

[0026] The beneficial effects of the present invention include improving replenishment efficiency, reducing maintenance costs, enhancing operational flexibility, and improving safety and environmental friendliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1This is a schematic diagram of the ship replenishment safety protection device of the present application, showing the configuration of the replenishment bypass pipeline and the replenishment bypass switch valve. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0031] 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.

[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0037] Example 1 exist Figure 1 In the process, one end of the supply bypass pipeline 8 is connected to the receiving ship ( Figure 1 The supply port 4 is connected to the supply main pipe 5 after it is installed in the supply main pipe 5 before the supply valve or the first opening and closing valve 6, and one end is connected to the oil inlet of the oil receiving tank 9.

[0038] exist Figure 1 In the embodiment, the supply bypass switch valve or the second on-off valve 7 is installed on the supply bypass pipeline 8. When the supply bypass switch valve 7 is opened, a passage is formed between the supply main pipe 5 and the oil receiving tank 9. Specifically, it is arranged between the supply port of the oil receiving ship and the oil inlet of the oil receiving tank.

[0039] In this embodiment, the supply bypass pipeline 8 establishes a passage connection between the supply main pipe 5 and the oil receiving tank 9 of the oil receiving ship, and the supply bypass switch valve 7 installed on the supply bypass pipeline 8 can play the role of opening / closing the supply bypass pipeline 8. The fuel supplied by the fuel supply pump 2 on the supply ship 1 can flow into the oil receiving ship through the supply bypass pipeline 8 ( Figure 1 (not shown) supply oil receiving tank 9.

[0040] exist Figure 1 In the figure, the supply ship 1 is a supply vessel carrying liquid fuel, and the fuel supply pump 2 is a power device equipped on the supply ship 1 specifically for fuel supply. It is usually easy to be damaged due to excessive pipeline pressure. When in use, the supply ship 1 and the oil receiving ship ( Figure 1 After the supply port 4 of the oil receiving vessel (not shown) is connected to the supply oil pipe 3 pulled by the cable, Figure 1 After the supply-related valve 6 on the supply main pipe and the supply bypass switch valve 7 on the supply bypass pipeline 8 are opened, the receiving ship ( Figure 1 Not shown in the figure) notifies the supply ship 1 to turn on the fuel supply pump 2, and the supply ship 1 starts to supply the receiving ship ( Figure 1 After the refueling is completed, the receiving ship ( Figure 1 (not shown) notifies the supply ship 1 to shut down the fuel supply pump 2. After the fuel supply pump 2 of the supply ship 1 is shut down, the receiving ship ( Figure 1 (not shown) Close the supply-related valve 6.

[0041] Example 2 A method for constructing a ship refueling safety protection device implemented according to the present invention is characterized by comprising the steps of constructing a refueling bypass pipeline and a refueling bypass switch valve, and installing them between the refueling main pipe and the oil receiving tank, specifically, between the refueling port of the oil receiving ship and the oil inlet of the oil receiving tank.

[0042] In order to prevent high pressure situations on large ships, the supply bypass pipeline and the supply main pipeline are made of high-pressure resistant materials to ensure pressure tolerance.

[0043] The first on-off valve and the second on-off valve are used to control the on-off of each supply pipeline, and are preferably cut-off on-off valves.

[0044] Furthermore, since the supply of high-pressure oil changes very quickly and the on-site situation is urgent, the supply bypass switch valve or the second on-off valve is a manual stop valve, which can remain normally open during supply.

[0045] Of course, since the second on-off valve is arranged on the bypass, it is preferably a stop valve with overflow function to further balance the pressure and avoid the situation where the supply valve or the first on-off valve on the supply pipeline on the receiving ship is damaged, resulting in blockage of the supply pipeline, which will cause excessive pressure on the supply pipeline and damage equipment such as the fuel supply pump on the supply ship.

[0046] Example 3 Based on Example 1, a pressure monitoring device is provided to first open the first on-off valve, and then open the second on-off valve after the pressure rises to a set value.

[0047] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A ship supply safety protection device, characterized in that: It includes the main supply pipeline and supply bypass pipeline installed between the supply ship and the receiving ship; A main supply pipeline is formed between the supply port of the oil receiving ship and the oil receiving tank of the oil receiving ship, and a first on-off valve is arranged on the main supply pipeline to control the on-off of the main supply pipeline; Downstream of the replenishing port, the main replenishing pipeline is connected to the oil receiving tank through a replenishing bypass pipeline; a second on-off valve is arranged on the replenishing bypass pipeline to control the on-off of the replenishing bypass pipeline.

2. The ship supply safety protection device according to claim 1, characterized in that: One end of the supply bypass pipeline is connected to the supply main pipeline behind the supply port of the oil receiving ship and before the inlet of the first opening and closing valve, and the other end is connected to the oil inlet of the oil receiving tank.

3. The ship supply safety protection device according to claim 1, characterized in that: The oil outlet of the supply ship and the supply port of the receiving ship are connected to the main supply pipeline through a supply oil pipe pulled by a cable. On the supply oil pipe, a fuel supply pump is arranged at least upstream of the supply port of the receiving ship.

4. The ship supply safety protection device according to claim 1, characterized in that: The replenishment bypass pipeline and the replenishment main pipeline are both made of high-pressure resistant materials.

5. The ship supply safety protection device according to claim 1, characterized in that: The ship replenishment safety protection device is characterized in that the second opening and closing valve is a manual stop valve that can remain in a normally open state during replenishment.

6. The ship supply safety protection device according to claim 1, characterized in that: The ship supply safety protection device is characterized in that it also includes at least one pressure monitoring device for monitoring the pressure of the total supply pipeline, and the pressure monitoring device is configured to automatically open the second on-off valve when the pressure of the total supply pipeline exceeds a preset value.

7. A ship supply system, characterized in that: The invention comprises the ship replenishment safety protection device as described in any one of claims 1 to 6 above.

8. A ship, characterized in that: The ship refueling safety protection device comprises the device described in any one of claims 1 to 6, and is used to ensure the safety of the ship when refueling.

9. A ship replenishment method using the ship replenishment safety protection device according to any one of claims 1 to 6, characterized in that: The following steps are involved: The oil outlet of the supply ship and the supply port of the receiving ship are connected to the main supply pipeline through a supply oil pipeline pulled by a cable; Open the first opening and closing valve and the second opening and closing valve at the same time; or open the first opening and closing valve first, and then open the second opening and closing valve after the pressure rises to the set value; After the receiving ship notifies the supply ship to start supplying, the supply ship starts to supply fuel to the receiving ship; After the replenishment is completed, the supply ship stops replenishing and the receiving ship closes the first on-off valve to cut off the main supply pipeline.

10. A method for constructing a ship replenishment safety protection device according to any one of claims 1 to 6, characterized in that: The method comprises the steps of constructing a supply bypass pipeline and a supply bypass switch valve, and installing them between the supply main pipe and the oil receiving tank.

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