Protective device for water curtain of outer plate of roll-on-roll-off ship

Abstract

The invention provides a water curtain protection device for a roll-on-roll-off ship outer plate. The water curtain protection device comprises a ship outer plate; the filling station opening is an opening formed in the ship outer plate; the spraying unit is arranged below the opening of the filling station; and the water supply unit is communicated with the spraying unit, and the water supply unit supplies water to the spraying unit. According to the water curtain protection device for the roll-on-roll-off ship outer plate, a spraying unit water curtain protection scheme is used on a PCTC ship, the LNG filling speed is increased, the labor cost such as manual operation is reduced, the ship berthing time is shortened, the expenditure is reduced, and benefits are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of ship equipment, and in particular relates to a water curtain protection device for the outer plate of a roll-on / roll-off ship. Background Art

[0002] A water spray pipe with multiple holes is generally installed at the outer plate opening of PCTC ships or passenger and vehicle ferry LNG filling stations. When LNG is being filled, water is sprayed on the outer plate to form a water curtain to prevent the leakage of low-temperature LNG liquid from damaging the outer plate structure and paint.

[0003] Existing water curtain spray pipes are generally movable. When in use, they are connected to a hose and hung by the crew on the outside or fixed to the outer plate with a hinge mechanism. When in use, the water pipe is connected to the hose and pushed outside the outer plate. After opening the valve, seawater sprays out to form a water curtain to protect the outer plate. After use, the water spray pipe needs to be retracted. This requires the crew to operate near the outer plate opening, which poses a risk of falling. Summary of the Invention

[0004] The present invention provides a water curtain protection device for the outer plate of a roll-on / roll-off ship, comprising:

[0005] ship outer plating;

[0006] A filling station opening, wherein the filling station opening is an opening on the outer plate of the ship;

[0007] a spray unit, the spray unit being arranged below the filling station opening;

[0008] A water supply unit is connected to the spray unit and supplies water to the spray unit.

[0009] Further: a control unit, the control unit is connected to the water supply unit, and is used to control the water supply flow of the water supply unit.

[0010] Furthermore: the spray unit is a fixed nozzle, and the fixed nozzle is installed below the opening of the filling station.

[0011] Furthermore: there are multiple fixed nozzles, and 2 to 4 fixed nozzles are installed on both sides below the opening of the filling station.

[0012] Furthermore: the water spraying directions of the multiple fixed nozzles are all facing the outer plate of the ship below the opening of the filling station.

[0013] Furthermore: the outlet of the water supply unit is connected to the spray unit, and the inlet of the water supply unit includes a first inlet and a second inlet, the first inlet is connected to the seawater pipeline, and the second inlet is connected to the fresh water pipeline.

[0014] Further: the control unit includes a first electrically controlled valve and a second electrically controlled valve.

[0015] Furthermore: the first electrically controlled valve is arranged on the seawater pipeline to control the water supply flow of the seawater pipeline.

[0016] Furthermore: the second electrically controlled valve is arranged on the fresh water pipeline to control the water supply flow of the fresh water pipeline.

[0017] Furthermore: the filling station opening is an LNG filling station opening.

[0018] The beneficial effects brought about by the present invention are as follows:

[0019] As can be seen from the above scheme, the present invention provides a water curtain protection device for the outer plate of a roll-on / roll-off ship. The use of a spray unit water curtain protection solution on PCTC ships speeds up LNG refueling, reduces labor costs such as manual operation, shortens ship berthing time, reduces expenses, and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a water curtain protection device for the outer plate of a roll-on / roll-off ship provided by the present invention is shown;

[0021] Figure 2 The present invention provides Figure 1 Schematic diagram of the AA-direction structure.

[0022] In the figure, 1 is the outer plate of the ship; 2 is the opening of the filling station; 3 is the spray unit; 4 is the first electrically controlled valve; and 5 is the second electrically controlled valve. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0024] like Figure 1 and Figure 2 As shown, the present invention provides a water curtain protection device for the outer plate of a roll-on / roll-off ship, comprising:

[0025] Ship outer plating 1;

[0026] The filling station opening 2 is an opening on the outer plate 1 of the ship;

[0027] A spray unit 3 is provided below the filling station opening 2;

[0028] The water supply unit is connected to the spray unit 3 and supplies water to the spray unit 3 .

[0029] Specifically, the filling station opening 2 is an opening on the ship's outer plate 1. The water supply unit is connected to the spray unit 3, which supplies water to the spray unit 3. The spray unit 3 is located below the filling station opening 2. The spray unit 3 sprays water below the filling station opening 2 to form a water curtain, spraying and cleaning the area below the filling station opening 2 and rinsing the ship's outer plate 1.

[0030] The PCTC uses a 3-unit water curtain protection solution on board to speed up LNG bunkering, reduce labor costs such as manual operation, shorten ship berthing time, reduce expenses and improve efficiency.

[0031] Further: a control unit, the control unit is connected to the water supply unit and is used to control the water supply flow of the water supply unit.

[0032] The control unit can control the water supply flow of the water supply unit, and further control the water spraying amount of the spray unit 3.

[0033] Furthermore: the spray unit 3 is a fixed nozzle, which is installed below the filling station opening 2.

[0034] Furthermore: there are multiple fixed nozzles, and 2 to 4 fixed nozzles are installed on both sides below the filling station opening 2, with 2 to 4 fixed nozzles on each side.

[0035] Furthermore: the water spraying directions of the multiple fixed nozzles are all directed towards the outer plate 1 of the ship below the filling station opening 2.

[0036] Specifically, 2 to 4 fixed nozzles are installed on each side of the bottom of the filling station opening 2. The water spraying direction of the multiple fixed nozzles is directed towards the ship's outer plate 1 below the filling station opening 2 to clean the ship's outer plate 1.

[0037] Furthermore: the outlet of the water supply unit is connected to the spray unit 3, and the inlet of the water supply unit includes a first inlet and a second inlet, the first inlet is connected to the seawater pipeline, and the second inlet is connected to the fresh water pipeline.

[0038] Furthermore: the control unit includes a first electrically controlled valve 4 and a second electrically controlled valve 5 .

[0039] Furthermore: the first electrically controlled valve 4 is provided on the seawater pipeline to control the water supply flow of the seawater pipeline.

[0040] Furthermore: the second electrically controlled valve 5 is provided on the fresh water pipeline to control the water supply flow of the fresh water pipeline.

[0041] Specifically, 2 to 4 fixed nozzles are installed on each side of the bottom of the filling station opening 2. The water spraying direction of the multiple fixed nozzles is directed towards the ship's outer plate 1 below the filling station opening 2 to clean the ship's outer plate 1.

[0042] The fresh water pipeline is connected to each fixed nozzle through a second electrically controlled valve 5 , and the second electrically controlled valve 5 is used to control the water supply flow of the fresh water pipeline.

[0043] The seawater pipeline is connected to each fixed nozzle through a first electrically controlled valve 4 , and the first electrically controlled valve 4 is used to control the water supply flow of the seawater pipeline.

[0044] When used at a filling station, the first electrically controlled valve 4 is opened, and the fixed nozzles spray seawater, forming a water curtain. After use, the system can be switched to the fresh water line, the first electrically controlled valve 4 is closed, and the second electrically controlled valve 5 is opened, and the fixed nozzles spray fresh water, forming a water curtain, to clean the ship.

[0045] Furthermore: the filling station opening 2 is an LNG filling station opening.

[0046] The beneficial effects brought about by the present invention are as follows:

[0047] As can be seen from the above scheme, the present invention provides a water curtain protection device for the outer plate of a roll-on / roll-off ship. The use of a three-spray unit water curtain protection solution on a PCTC ship accelerates LNG refueling, reduces labor costs such as manual operation, shortens ship berthing time, reduces expenses, and improves efficiency.

[0048] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A water curtain protection device for the outer plate of a roll-on / roll-off ship, characterized by: include: ship outer plating; A filling station opening, wherein the filling station opening is an opening on the outer plate of the ship; a spray unit, the spray unit being arranged below the filling station opening; A water supply unit is connected to the spray unit and supplies water to the spray unit.

2. The water curtain protection device for the outer plate of a ro-ro ship according to claim 1, characterized in that: Also includes: A control unit is connected to the water supply unit and is used to control the water supply flow of the water supply unit.

3. The water curtain protection device for the outer plate of a ro-ro ship according to claim 2, characterized in that: The spray unit is a fixed nozzle installed below the filling station opening.

4. The water curtain protection device for the outer plate of a ro-ro ship according to claim 3, characterized in that: There are multiple fixed nozzles, and 2 to 4 fixed nozzles are installed on both sides below the filling station opening.

5. The water curtain protection device for the outer plate of a ro-ro ship according to claim 4, characterized in that: The water spraying directions of the multiple fixed nozzles are all directed towards the outer plate of the ship below the opening of the filling station.

6. The water curtain protection device for the outer plate of a ro-ro ship according to claim 5, characterized in that: The outlet of the water supply unit is communicated with the spray unit. The inlet of the water supply unit includes a first inlet and a second inlet. The first inlet is communicated with the seawater pipeline, and the second inlet is communicated with the fresh water pipeline.

7. The water curtain protection device for the outer plate of a ro-ro ship according to claim 6, characterized in that: The control unit includes a first electrically controlled valve and a second electrically controlled valve.

8. The water curtain protection device for the outer plate of a ro-ro ship according to claim 7, characterized in that: The first electrically controlled valve is arranged on the seawater pipeline and is used to control the water supply flow of the seawater pipeline.

9. The water curtain protection device for the outer plate of a ro-ro ship according to claim 8, characterized in that: The second electrically controlled valve is arranged on the fresh water pipeline and is used to control the water supply flow of the fresh water pipeline.

10. The water curtain protection device for the outer plate of a ro-ro ship according to claim 1, characterized in that: The filling station opening is an LNG filling station opening.

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