Closed ship liquid ammonia fuel filling station

Abstract

A closed type ship liquid ammonia fuel filling station is provided with an independent closed filling room, a plurality of filling manifolds are arranged in the room and fixed to one side of the room, remote control emergency cut-off valves are arranged on the filling manifolds, one end of each filling manifold penetrates through the wall of the adjacent room, a quick connector flange is arranged outside the wall, and the quick connector flanges are connected with the remote control emergency cut-off valves. The other end of the filling pipeline extends downwards and penetrates through a room bottom plate, a filling pipeline connector is arranged outside the room bottom plate, and the filling pipeline connector is provided with a nitrogen purging connector; a ventilation fan is arranged at the top of the room, a spraying pipeline is laid above the filling manifold and on a top plate in the room, a water collecting well and a discharging connector are arranged at the bottom of the room, a liquid level alarm is arranged in the water collecting well, and an anti-skid grating is laid on the ground in the room. Various safety protection and fire-fighting facilities can be conveniently arranged, meanwhile, in the filling operation process, an operator does not need to enter a room, and damage to the filling operator is reduced when an accident happens.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of offshore ship design and construction, and particularly relates to a closed ship liquid ammonia fuel filling station. BACKGROUND

[0002] At present, new green fuels are widely used in the field of ships, and more and more operating ships select low-flashpoint fuels such as methanol or liquid ammonia. The low-flashpoint and toxic characteristics of liquid ammonia fuel put forward higher requirements for the construction and design of ships, and the design and construction of the ship liquid ammonia fuel filling station need to ensure the safe and reliable operation of the filling system and the safety management of the operating personnel during the operation of the ship. SUMMARY

[0003] To solve the above problems, the application provides a closed ship liquid ammonia fuel filling station, which adopts the technical scheme of:

[0004] A closed ship liquid ammonia fuel filling station has an independent closed filling room, a plurality of filling pipe manifolds are arranged in the room, the plurality of filling pipe manifolds are fixed on one side of the room, a remote control emergency shut-off valve is arranged on the filling pipe manifold, one end of the filling pipe manifold penetrates the wall of the adjacent room, a quick interface flange is arranged outside the wall, the other end extends downward and penetrates the floor of the room, and a filling pipe line interface is arranged outside the floor of the room. The filling pipe line interface is provided with a nitrogen purging interface.

[0005] A ventilation fan is arranged on the top of the room, a spray pipe line is arranged on the top plate of the room above the filling pipe manifold, a water collecting well and a discharge interface are arranged on the bottom of the room, a liquid level alarm is arranged in the water collecting well, and an anti-skid grid is arranged on the ground in the room.

[0006] The closed ship liquid ammonia fuel filling station further has the ventilation fan outlet connected to a ventilation mast.

[0007] The closed ship liquid ammonia fuel filling station further has airtight doors arranged in the filling room.

[0008] The closed ship liquid ammonia fuel filling station further has a plurality of support columns arranged on the bottom of the filling room.

[0009] The closed ship liquid ammonia fuel filling station further has ammonia gas detection sensors arranged in the filling room.

[0010] The application has the following beneficial effects:

[0011] 1. The closed filling station type is adopted, various safety protection and fire-fighting facilities are arranged, and the operating personnel do not need to enter the room during the filling operation, so that the harm to the filling operating personnel is reduced in case of an accident.

[0012] 2. When leakage, fire and other accidents occur during the filling operation in the closed room, the risk of accident spread can be effectively isolated and reduced.

[0013] 3. In the closed room filling station, independent ventilation and air exchange facilities are provided, which can connect the ventilation outlet in the room to the ventilation mast or other suitable area, effectively avoiding the influence of the design of the dangerous area and toxic area around the filling station on the design of the ship.

[0014] 4. The integrated filling station of the closed room is set, after the completion of the room, it can be installed on the ship as a whole, only the base needs to be welded. It can reduce the shipbuilding dock period and reduce the assembly and debugging period of the filling related system during construction. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the filling room;

[0016] Figure 2 is a schematic diagram of the side view structure of the filling room;

[0017] Among them, 1 is a filling manifold, 2 is a remote control emergency shut-off valve, 3 is an air-tight door, 4 is a quick interface flange, 5 is a support column, 6 is a water collection well and a discharge interface, 7 is a spray pipeline, 8 is an ammonia gas detection sensor, 9 is a ventilation fan, 10 is a filling pipeline interface, 11 is an anti-skid grille. DETAILED DESCRIPTION

[0018] The application will be further described in conjunction with the drawings.

[0019] A closed ship liquid ammonia fuel filling station, the design of the filling station of the liquid ammonia fuel ship needs to meet the actual fuel filling needs in the operation of the ship, effectively reduce the risk in the filling process and the safety of the operator.

[0020] As shown in Figure 1 , 2 The filling station adopts an integrated closed room design, the main body of the room is a steel structure, one side of the room is provided with an air-tight door, and the bottom of the room is provided with a plurality of necessary support columns, which facilitates the welding and installation of the room.

[0021] The inside of the filling station room mainly includes a filling manifold. The filling manifold should at least include one liquid-phase filling pipeline for filling liquid ammonia fuel and one gas-phase filling pipeline for filling evaporated ammonia gas in the fuel tank. The number and actual pipe diameter of the filling manifold can be increased according to actual filling requirements. A remote control cut-off valve is arranged on each filling pipeline. When a leakage or other accident occurs, the valve can be automatically cut off by remote control. The filling manifold is provided with a nitrogen purging interface for removing residual ammonia liquid in the pipeline after filling. The end of the filling pipeline is provided with a standard interface flange on the outside wall of the room, which is connected to the shore-based filling interface. The other end of the filling pipeline is located at the bottom of the room and is provided with a standard interface flange, which is connected to the filling pipeline installed at the end of the ship. An anti-skid grid is arranged at the bottom of the room to close the maintenance space for the operator to enter the room, so that the operator can easily enter the room to maintain and maintain the related equipment.

[0022] During filling operation, only the standard interface flange on the outside wall of the room is connected to the hose of the shore-based or filling ship through the quick coupling flange to perform the filling operation, without the need to enter the inside of the room. The risk sources during the filling process are all located in the closed room, which effectively reduces the filling risk and the safety of the operator.

[0023] A water collecting well and a discharge interface can be arranged at the bottom of the room, and a fire-fighting water spraying pipeline and an ammonia gas detection sensor are arranged at the top of the room. The water collecting well in the room is used to collect the leaked liquid. When a leakage or fire accident occurs, an alarm signal is sent through the sensor, and the fire-fighting water spraying pipeline is actuated, which can effectively prevent the accident from spreading. An independent ventilation fan is arranged outside the room to avoid the accumulation of toxic ammonia gas in the room and to prevent secondary accidents.

Claims

1. An enclosed marine liquid ammonia fuel filling station characterized by, There is an independent closed filling room, a plurality of filling manifolds are arranged in the room, the plurality of filling manifolds are fixed on one side of the room, a remote control emergency cut-off valve is arranged on the filling manifold, one end of the filling manifold penetrates the wall of the adjacent room, a quick interface flange is arranged outside the wall, the other end extends downward and penetrates the floor of the room, and a filling pipe interface is arranged outside the floor of the room; the filling pipe interface is provided with a nitrogen blowing interface; A ventilation fan is arranged on the top of the room, a spraying pipe line is arranged on the top of the filling manifold and the inner top plate of the room, a water collecting well and a discharge interface are arranged at the bottom of the room, a liquid level alarm is arranged in the water collecting well, and an anti-skid grid is arranged on the inner floor of the room.

2. A closed-type marine vessel liquid ammonia fuel filling station according to claim 1, characterized in that, The outlet of the ventilation fan is connected to a ventilation mast.

3. A closed-type marine vessel liquid ammonia fuel filling station according to claim 1, characterized in that, The filling room is provided with an airtight door.

4. A closed-type marine vessel liquid ammonia fuel filling station according to claim 1, characterized in that, A plurality of supporting columns are arranged at the bottom of the filling room.

5. A closed-type marine vessel liquid ammonia fuel filling station according to claim 1, characterized in that, An ammonia gas detection sensor is arranged on the top of the inner part of the filling room.

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