ALS system tail end pipeline and ship

Abstract

The utility model discloses an ALS (Air Lubrication System) system tail end pipeline and a ship provided with the pipeline. The ALS system tail end pipeline comprises a header pipe, an air supply branch pipe, a cabin penetrating piece, a broadside remote control valve, a control pipe, an outboard pipe and an ARU (Air Release Unit). The pipeline arrangement structure for leading high-temperature compressed air into the ship bottom ARU from the header pipe is simple, arrangement and installation are easy, the broadside remote control valve is arranged in the ballast tank, the length of the tail end outboard pipe is greatly shortened, the number of butt welding seams on the pipeline is reduced, and the cost is reduced. And the risk of seawater corrosion caused by damage of a zinc coating in the pipe due to field welding construction of butt welding is obviously reduced, the service life of the pipeline is prolonged, great practical value and economic benefits are achieved for ships, such as container ships, provided with ALS systems, and the maintenance cost is reduced and the service life of the pipeline is prolonged. The operation cost can be obviously reduced, and the overall performance and reliability of the ship are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to shipbuilding technical field, especially a kind of ALS system end pipeline and ship. BACKGROUND

[0002] With the increasingly stringent requirements of global shipping industry on energy saving and emission reduction, low carbon and zero carbon become one of the core indicators of current ship design. The further improvement of emission requirements and gradually rising oil price all promote shipping industry to seek various ways to reduce fuel consumption, and one of the methods is to reduce ship resistance. In the case of not changing ship lines, ship's wave resistance and pressure difference resistance remain unchanged, so only by reducing friction resistance to reduce ship resistance, air lubrication drag reduction technology is born in such circumstances.

[0003] In order to improve the efficiency of ship emission reduction operation, as an important content of further improving environmental performance, new innovative solutions are sought to help improve fuel efficiency. Air lubrication technology is one of the proven technologies that can help ships save fuel and reduce energy loss. Using this technology on suitable hulls can significantly reduce carbon emissions and reduce fuel costs. Therefore, more and more shipowners will tend to use air lubrication system in the future to improve the CII rule level in the long run. Air lubrication system is essential to ensure the realization of the long-term emission reduction target proposed by IMO, and it will also help shipowners maintain the "green competitiveness" of their fleet, and thus obtain more charter contracts under the CII rule.

[0004] However, when deploying the existing air lubrication system (ALS) end pipeline on the ship, the dry arrangement method is usually adopted. If the remote control side valve is installed in the pipe for dry installation, the length of the outboard pipe after the side valve may reach about 20 meters. According to the regulations of the classification society, the outboard pipe is only allowed to be connected by butt welding technology, and the use of sleeve and flange is prohibited. According to the welding requirements of butt welding, only the external weld bevel can be processed on site, and the inner wall weld cannot be processed. Moreover, during the welding process, the galvanized layer of the inner wall of the pipe will be damaged due to high temperature. This damaged area is easily corroded under the alternating erosion of air and seawater, forming a leak hole, which affects the normal operation of the air lubrication system (ALS).

[0005] The present application provides an innovative arrangement method, which significantly shortens the length of the overboard pipe by installing the side remote control valve inside the ballast tank; through the design, only one butt weld is reserved between the overboard pipe and the air release unit (ARU). In addition, the weld can be processed from the inside of the ARU end, effectively reducing the risk of corrosion of the overboard pipe, prolonging the service life of the overboard pipe, and ensuring the long-term stable operation of the ALS system. Content of the utility model

[0006] To solve the problems in the prior art, the ALS system terminal pipeline and the ship are provided, which can reduce the corrosion of the pipeline, prolong the service life of the pipeline, and reduce the operating cost of the ship.

[0007] To achieve the above-mentioned purposes and other related purposes, the utility model adopts the following technical scheme:

[0008] The ALS system terminal pipeline provided by the utility model comprises a main pipe, a gas supply branch pipe, a cabin penetrating part, a side remote control valve, a control pipe, an overboard pipe and an ARU, the main pipe is arranged in a pipe trunk, the gas supply branch pipe enters a ballast tank through the cabin penetrating part, one end of the gas supply branch pipe in the pipe trunk is communicated with the main pipe, the side remote control valve comprises a valve body and a driving head, the other end of the gas supply branch pipe in the ballast tank is communicated with one end of the valve body of the side remote control valve, the side remote control valve is arranged in the ballast tank, one end of the valve body of the side remote control valve is communicated with the other end of the overboard pipe, the other end of the overboard pipe is communicated with the ARU, the driving head of the side remote control valve is connected with one end of the control pipe, the other end of the control pipe is arranged in the pipe trunk and connected with an external power source, so that the side remote control valve can be switched on and off outside the ballast tank through the control pipe, and the other end of the overboard pipe is communicated with the ARU.

[0009] As a preferred technical scheme, the gas supply branch pipe and the overboard pipe are both seamless steel pipes, and the surfaces of the gas supply branch pipe and the overboard pipe are both subjected to hot galvanizing treatment.

[0010] Further, the gas supply branch pipe, the side remote control valve and the overboard pipe in the ballast tank are all made of materials resistant to seawater and 200 DEG C high-temperature compressed air; the control pipe in the ballast tank is made of a material resistant to seawater.

[0011] As a further preferred technical scheme, an insulating part is coated on the outer wall of the gas supply branch pipe in the pipe trunk.

[0012] As a further preferred technical solution, one end of the gas supply branch pipe located in the pipe hole is connected with the total pipe flange or sleeve; one end of the gas supply branch pipe located in the ballast tank is connected with the hull side remote control valve sleeve; the hull side remote control valve is connected with the outboard pipe flange; and the outboard pipe is welded with the ARU butt joint.

[0013] As a further preferred technical solution, the material strength of the ARU is not less than that of the hull plate, and the ARU is provided with a butt joint inlet, and the ARU is connected with the outboard pipe through the butt joint inlet.

[0014] In the second aspect of the utility model, a ship is provided, which comprises the ALS system terminal pipeline,

[0015] As a preferred technical solution, the total pipe of the ALS system terminal pipeline is connected with at least two gas supply branch pipes.

[0016] As described above, the utility model has the following beneficial effects:

[0017] (1) The ALS system terminal pipeline and the ship have the advantages of simple structure, easy arrangement and installation, and are suitable for ALS system terminal pipeline arrangement. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of the ALS system terminal pipeline of the utility model.

[0019] Figure 2 is a top view of the ALS system terminal pipeline when arranged bilaterally symmetrically on the ship.

[0020] Specifically, the reference signs are described as follows: 1, gas supply branch pipe; 2, hull side remote control valve; 3, outboard pipe; 4, ARU; 5, insulating piece; 6, cabin penetrating piece; 7, control pipe; 8, total pipe; 9, pipe hole; 10, ballast tank. Specific implementation method

[0021] In order to better understand the purpose, structure and function of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0022] In the description of the utility model, it should be pointed out that the position relationship indicated in the specification such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the utility model and simplifying the description, and cannot be understood as the restriction of the utility model that the indicated or implied device or element must have a specific orientation, be constructed and operated in a specific direction. Embodiment

[0023] As shown in Figure 1 and Figure 2 , the embodiment provides an ALS system end pipeline and a ship, which comprises a main pipe 8, a gas supply branch pipe 1, a cabin penetrating piece 6, a side remote control valve 2, a control pipe 7, an outboard pipe 3 and an ARU 4.

[0024] The main pipe 8 is arranged in the pipe 9, and the pipe 9 is a dry area; at least two gas supply branch pipes 1 are communicated with the main pipe 8, the gas supply branch pipe 1 is used for conveying high-temperature compressed air medium, the gas supply branch pipe 1 adopts seamless steel pipe, and the surface of the gas supply branch pipe 1 is subjected to hot galvanizing treatment, has strong corrosion resistance, and adopts a material that can resist seawater and 200 DEG C high-temperature compressed air.

[0025] The gas supply branch pipe 1 is arranged in the pipe 9, and the surface of the gas supply branch pipe 1 is subjected to hot galvanizing treatment, has strong corrosion resistance, and adopts a material that can resist seawater and 200 DEG C high-temperature compressed air.

[0026] The side remote control valve 2 includes a valve body and a drive head for controlling the opening and closing of the valve body, one end of the air supply branch pipe 1 is communicated with one end of the valve body of the side remote control valve 2, and the air supply branch pipe 1 and the side remote control valve 2 are connected by a sleeve pipe; the side remote control valve 2 is arranged in the ballast tank 10 and adopts an immersed structure, so that the wet installation of the side remote control valve 2 in the ballast tank 10 of the ship can be realized, the durability of the valve is improved, and meanwhile, the length of the outboard pipe 3 is reduced. In addition, the side remote control valve 2 has a ship classification society approval certificate, that is, the materials, such as the valve body and the sealing ring, of the side remote control valve 2 are all materials with the properties of resisting seawater and resisting 200 DEG C or so high-temperature compressed air.

[0027] The other end of the valve body of the side remote control valve 2 is communicated with one end of the outboard pipe 3; the drive head of the side remote control valve 2 is connected with one end of the control pipe 7, the other end of the control pipe 7 is arranged in the pipe hole 9 and connected with an external power source, so as to provide power for the drive head of the side remote control valve and control the opening and closing of the valve body below the drive head, so that the side remote control valve 2 can be controlled to open and close outside the ballast tank 10 through the control pipe 7; in the embodiment, the control pipe 7 arranged in the ballast tank 10 is made of a material resistant to seawater, and the power source is a hydraulic power source. The other end of the outboard pipe 3 is communicated with the ARU 4, the outboard pipe 3 and the side remote control valve 2 are connected by a flange, and the outboard pipe 3 and the ARU 4 are connected by butt welding. The outboard pipe 3 is a seamless steel pipe and is subjected to galvanizing treatment, and the outboard pipe 3 meets the requirements of the ship classification society on the pipeline grade and wall thickness of the outboard pipe 3. The material strength of the ARU 4 is not less than that of the outer plate of the ship body, and the ARU 4 is provided with a butt welding air inlet and is connected with the outboard pipe 3 by butt welding.

[0028] The ALS system pipeline of the utility model can significantly reduce the length of the outboard pipe 3 between the side remote control valve 2 and the ARU 4 by arranging the side remote control valve 2 in the ballast tank 10. This arrangement not only reduces the length of the pipeline, but also effectively reduces the number of butt welding seams of the outboard pipe 3, so that the installation and maintenance process of the ALS system pipeline is simplified, and the reliability and safety of the system are improved; through the fine pipeline layout optimization, the potential leakage source and fault point are effectively reduced, so as to ensure the stability and safety of the ship during navigation; in addition, the reduction of the length of the outboard pipe 3 and the number of welding joints not only helps to reduce the material cost and construction cost, but also further enhances the economic benefit.

[0029] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modifications or equivalent replacements to these features and embodiments made by those skilled in the art without departing from the spirit and scope of the present application shall be covered by the present application. In addition, the features and embodiments can be modified under the guidance of the present application to adapt to specific conditions and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application shall be covered by the present application.

Claims

1. An ALS system end-of-line tube, characterized by, The ALS system comprises a main pipe (8), a gas supply branch pipe (1), a through-passage piece (6), a side remote control valve (2), a control pipe (7), an outboard pipe (3) and an ARU (4), the main pipe (8) is arranged in a pipe nipple (9), the gas supply branch pipe (1) is arranged in the through-passage piece (6) and extends into a ballast tank (10) from the pipe nipple (9), one end of the gas supply branch pipe (1) in the pipe nipple (9) is communicated with the main pipe (8), the side remote control valve (2) comprises a valve body and a driving head, the other end of the gas supply branch pipe (1) in the ballast tank (10) is communicated with one end of the valve body of the side remote control valve (2), the side remote control valve (2) is arranged in the ballast tank (10), the other end of the valve body of the side remote control valve (2) is communicated with one end of the outboard pipe (3), the other end of the outboard pipe (3) is communicated with the ARU (4), the driving head of the side remote control valve (2) is connected with one end of the control pipe (7), the other end of the control pipe (7) extends into the pipe nipple (9) and is connected with an external power source, so that the side remote control valve (2) can be switched on or off outside the ballast tank (10) through the control pipe (7).

2. An ALS system end-of-line according to claim 1, characterized in that, The gas supply branch pipe (1) and the outboard pipe (3) are both made of seamless steel pipes, and the surfaces of the gas supply branch pipe (1) and the outboard pipe (3) are both galvanized.

3. An ALS system end-of-line according to claim 2, wherein, The gas supply branch pipe (1), the side remote control valve (2) and the outboard pipe (3) in the ballast tank (10) are all made of materials resistant to seawater and 200℃ high-temperature compressed air, and the control pipe (7) in the ballast tank (10) is made of a material resistant to seawater.

4. An ALS system end-of-line according to claim 3, wherein, An insulating piece (5) is wrapped on the outer wall of the gas supply branch pipe (1) in the pipe nipple (9).

5. An ALS system end-of-line according to claim 3, wherein, One end of the gas supply branch pipe (1) in the pipe nipple (9) is connected with the flange or sleeve of the main pipe (8), one end of the gas supply branch pipe (1) in the ballast tank (10) is connected with the sleeve of the side remote control valve (2), the side remote control valve (2) is connected with the flange of the outboard pipe (3), and the outboard pipe (3) is butt-welded with the ARU (4).

6. An ALS system end-of-line according to claim 5, characterized in that, The ARU (4) is made of a material with a strength not less than that of the outer plate of the ship body, and a butt-welding air inlet is arranged on the ARU (4), the ARU (4) is connected with the outboard pipe (3) through the butt-welding air inlet.

7. A vessel characterised in that, The ALS system comprises a main pipe (8), a gas supply branch pipe (1), a through-passage piece (6), a side remote control valve (2), a control pipe (7), an outboard pipe (3) and an ARU (4), the main pipe (8) is arranged in a pipe nipple (9), the gas supply branch pipe (1) is arranged in the through-passage piece (6) and extends into a ballast tank (10) from the pipe nipple (9), one end of the gas supply branch pipe (1) in the pipe nipple (9) is communicated with the main pipe (8), the side remote control valve (2) comprises a valve body and a driving head, the other end of the gas supply branch pipe (1) in the ballast tank (10) is communicated with one end of the valve body of the side remote control valve (2), the side remote control valve (2) is arranged in the ballast tank (10), the other end of the valve body of the side remote control valve (2) is communicated with one end of the outboard pipe (3), the other end of the outboard pipe (3) is communicated with the ARU (4), the driving head of the side remote control valve (2) is connected with one end of the control pipe (7), the other end of the control pipe (7) extends into the pipe nipple (9) and is connected with an external power source, so that the side remote control valve (2) can be switched on or off outside the ballast tank (10) through the control pipe (7).

8. A vessel according to claim 7, characterised in that The ALS system comprises a main pipe (8), a gas supply branch pipe (1), a through-passage piece (6), a side remote control valve (2), a control pipe (7), an outboard pipe (3) and an ARU (4), the main pipe (8) is arranged in a pipe nipple (9), the gas supply branch pipe (1) is arranged in the through-passage piece (6) and extends into a ballast tank (10) from the pipe nipple (9), one end of the gas supply branch pipe (1) in the pipe nipple (9) is communicated with the main pipe (8), the side remote control valve (2) comprises a valve body and a driving head, the other end of the gas supply branch pipe (1) in the ballast tank (10) is communicated with one end of the valve body of the side remote control valve (2), the side remote control valve (2) is arranged in the ballast tank (10), the other end of the valve body of the side remote control valve (2) is communicated with one end of the outboard pipe (3), the other end of the outboard pipe (3) is communicated with the ARU (4), the driving head of the side remote control valve (2) is connected with one end of the control pipe (7), the other end of the control pipe (7) extends into the pipe nipple (9) and is connected with an external power source, so that the side remote control valve (2) can be switched on or off outside the ballast tank (10) through the control pipe (7).

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