Drip bearing tray of LNG (Liquefied Natural Gas) liquid cargo ship filling station

Abstract

The invention discloses an LNG (Liquefied Natural Gas) liquid cargo ship filling station drip tray which comprises a drip tray body, a stainless steel grating, a temperature sensor, a liquid level sensor, a stainless steel floor drain, a release valve, a reversing joint and a release pipe, the drip tray body is fixed on a ship body supporting structure, and the stainless steel grating is fixedly connected to the drip tray body through a bolt; the temperature sensor and the liquid level sensor are respectively arranged on the stainless steel grating, the stainless steel floor drain is arranged at the bottom of the drip tray body, the discharge pipe is connected with the stainless steel floor drain, and the discharge valve and the reversing joint are respectively arranged on the discharge pipe. According to the LNG liquid cargo ship filling station drip tray, possible LNG leakage is collected and prevented from making direct contact with a ship body or other equipment, so that damage caused by low temperature is avoided, rainwater on a ship can be effectively discharged, the liquid level and temperature of the drip tray can be remotely monitored, and the personal operation safety of sailors is guaranteed.

Description

Technical Field

[0001] The invention relates to a drip tray of a filling station for an LNG liquid cargo ship. Background Art

[0002] At present, there are many filling stations for LNG tankers, LNG tanker bunkering ships, LNG powered ships and FLNG ships. Especially in ship-to-ship, ship-to-vehicle and ship-to-shore bunkering operations, there is a risk of LNG leakage during the bunkering process, which poses a potential safety hazard. Therefore, the drip pan plays an important role in the LNG bunkering stations on LNG liquid cargo tankers, LNG liquid cargo bunkering ships, LNG-powered ships and FLNG ships. Its design and use are crucial to ensuring the safety of the bunkering process. The drip pan is mainly used under the loading and unloading, bunkering and transfer manifold (Manifold). Together with the protective wall, water curtain system, etc., it constitutes a leakage protection system in the loading and unloading area, the bunkering docking area and the regasification area. It can not only reduce potential safety hazards, but also can be used in conjunction with a variety of safety equipment to form a comprehensive protection system. Summary of the invention

[0003] The purpose of the invention is to provide a drip tray for a filling station of an LNG liquid cargo ship.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned object is: a drip tray of an LNG tanker filling station, comprising a drip tray body (1), a stainless steel grille (2), a temperature sensor (3), a liquid level sensor (4), a stainless steel floor drain (5), a discharge valve (6), a reversing joint (7) and a discharge pipe (11), wherein the drip tray body (1) is fixed to a hull support structure (14), the stainless steel grille (2) is fixedly connected to the drip tray body (1) by bolts (8), the temperature sensor (3) and the liquid level sensor (4) are respectively mounted on the stainless steel grille (2), the stainless steel floor drain (5) is mounted on the bottom of the drip tray body (1), the discharge pipe (11) is connected to the stainless steel floor drain (5), and the discharge valve (6) and the reversing joint (7) are respectively mounted on the discharge pipe (11).

[0005] A drip tray supporting frame (10) is installed on the drip tray body (1).

[0006] A polytetrafluoroethylene heat insulating gasket (9) is installed between the drip tray body (1) and the hull support structure (14).

[0007] The present invention discloses a drip pan of an LNG liquid cargo ship filling station. The main function of the drip pan is to collect possible LNG leakage and prevent it from directly contacting the hull or other equipment, thereby avoiding damage caused by low temperature. The drip pan is usually installed below the filling port of the LNG filling station. The use of the drip pan is a simple and effective means to reduce the consequences of LNG disasters. Rainwater on the ship can be effectively discharged, and the liquid level and temperature of the drip pan can be remotely monitored to ensure the personal operation safety of the crew. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The present invention is a structural schematic diagram of a drip tray of a filling station for an LNG liquid cargo ship.

[0009] Figure 2 yes Figure 1 AA section view.

[0010] In the figure: 1. Drip tray body; 2. Stainless steel grille; 3. Temperature sensor; 4. Liquid level sensor; 5. Stainless steel floor drain; 6. Discharge valve; 7. Reversing joint; 8. Bolts; 9. Polytetrafluoroethylene thermal insulation gasket; 10. Drip tray support frame; 11. Discharge pipe; 12. LNG liquid phase pipe; 13. Ship side; 14. Hull support structure. DETAILED DESCRIPTION

[0011] like Figure 1 and Figure 2As shown, the drip tray of the LNG liquid cargo ship filling station includes a drip tray body 1, a stainless steel grille 2, a temperature sensor 3, a liquid level sensor 4, a stainless steel floor drain 5, a discharge valve 6, a reversing joint 7, a polytetrafluoroethylene thermal insulation gasket 9, a drip tray support frame 10 and a discharge pipe 11. The drip tray body 1 is fixed to the hull support structure 14, the stainless steel grille 2 is fixedly connected to the drip tray body 1 by bolts 8, the temperature sensor 3 and the liquid level sensor 4 are respectively installed on the stainless steel grille 2, the stainless steel floor drain 5 is installed at the bottom of the drip tray body 1, the discharge pipe 11 is connected to the stainless steel floor drain 5, the discharge valve 6 and the reversing joint 7 are respectively installed on the discharge pipe 11, the polytetrafluoroethylene thermal insulation gasket 9 is installed between the drip tray body 1 and the hull support structure 14, and the drip tray body 1 is fixed to the hull support structure 14. The drip tray support frame 10 is installed on the drip tray body 1. The drip tray body 1 is welded with SUS316L stainless steel plate, mainly considering the corrosion protection in the open air area and preventing the joint leakage of the LNG liquid phase pipe 12 from causing brittle cracking of the drip tray. The stainless steel grid 2 is mainly used for effectively discharging the LNG liquid phase pipe 12 into the drip tray body 1. The temperature sensor 3 is used to monitor the temperature of the liquid discharged from the drip tray of the filling station. When it is greater than -15°C, the reversing joint 7 is used to discharge the discharged rainwater directly to the floor drain 13 of the ship's side. When it is less than -15°C or a lower temperature is detected, the crew is reminded that there is LNG leakage. If there is leakage, the direction of the reversing joint 7 needs to be adjusted, and the leaked LNG needs to be discharged to the sea. The liquid level sensor 4 is used to monitor the height of the liquid level discharged from the drip tray of the filling station. If a high-level alarm is received, the pipeline may be blocked, and the crew is reminded to clear the discharge pipe 11. The stainless steel floor drain 5 is used to discharge the leaked LNG and rainwater. The discharge valve 6 is used to discharge the leaked LNG and rainwater. The reversing joint 7 is used to adjust the direction of the discharge pipe 11, which can be flexibly rotated manually by 180°. When the drip tray of the filling station detects normal temperature rainwater, it is adjusted to the ship's side and the rainwater is discharged to the sea through the water intake configured on the ship. If the monitoring is low temperature LN G, it can be adjusted to rotate overboard and discharged into the sea. The polytetrafluoroethylene thermal insulation gasket 9 is used to insulate and protect the hull supporting structure 14 on the ship. The drip pan of the LNG liquid cargo ship filling station of the present invention mainly collects possible LNG leakage and prevents it from directly contacting the hull or other equipment, thereby avoiding damage caused by low temperature. The drip pan is usually installed below the filling port of the LNG filling station. The use of the drip pan is a simple and effective means to reduce the consequences of LNG disasters. Rainwater on the ship can be effectively discharged, and the liquid level and temperature of the drip pan can be remotely monitored to ensure the personal operation safety of the crew.

Claims

1. A drip tray for a LNG tanker filling station, characterized in that: The invention comprises a drip tray body (1), a stainless steel grille (2), a temperature sensor (3), a liquid level sensor (4), a stainless steel floor drain (5), a discharge valve (6), a reversing joint (7) and a discharge pipe (11), wherein the drip tray body (1) is fixed on a hull support structure (14), the stainless steel grille (2) is fixedly connected to the drip tray body (1) by bolts (8), the temperature sensor (3) and the liquid level sensor (4) are respectively mounted on the stainless steel grille (2), the stainless steel floor drain (5) is mounted on the bottom of the drip tray body (1), the discharge pipe (11) is connected to the stainless steel floor drain (5), and the discharge valve (6) and the reversing joint (7) are respectively mounted on the discharge pipe (11).

2. The drip tray of the LNG tanker filling station according to claim 1, characterized in that: A drip tray supporting frame (10) is installed on the drip tray body (1).

3. The drip tray of the LNG tanker filling station according to claim 1, characterized in that: A polytetrafluoroethylene heat insulating gasket (9) is installed between the drip tray body (1) and the hull support structure (14).

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