Oil tanker cargo oil tank protection and ballast water treatment combined system

Abstract

The utility model belongs to the technical field of ships, and relates to a cargo oil tank protection and ballast water treatment combined system of an oiling ship. A nitrogen outlet pipeline (14) of the nitrogen generation unit (A) is communicated with a nitrogen supply pipeline (15), the nitrogen supply pipeline (15) is communicated with a ballast tank (17) of the nitrogen-filling oxygen-driving ballast water treatment component (B) through a first communication branch pipe (16), the nitrogen supply pipeline (15) is communicated with a cargo oil tank (19) of the cargo oil tank nitrogen protection component (C) through a second communication branch pipe (18), and the nitrogen outlet pipeline (14) is communicated with a miscellaneous air compressor access port (20) on board. According to the oil ship cargo oil tank protection and ballast water treatment combined system, nitrogen manufacturing components do not need to be arranged respectively, space is saved, energy consumption is reduced, manufacturing cost and maintenance and repair cost are reduced, and ballast water effectively protects a paint coating in a ballast tank for a long time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the ship technology field more specifically, is related to a kind of oil ship cargo oil tank protection and ballast water treatment combined system. BACKGROUND

[0002] Now oil ship cargo oil tank protection and ballast water treatment system are two independent systems, expensive, occupy large space on ship, maintenance cost is high;Cargo oil tank protection is mainly controlled by inert gas generator or nitrogen generating device generated inert gas to control cargo oil tank oxygen content to play the role of fire and explosion prevention;Ballast water treatment system is mainly through electrolytic method, ultraviolet sterilization method, chemical reagent method, inert gas oxygen driving method and so on to realize the inactivation treatment to seawater microorganism.The defects of prior art: cargo oil tank protection and ballast water treatment system are two large independent systems, high cost, occupy large space, high energy consumption.

[0003] In prior art, there is a technology with the name of "gas protection welding wire for oil ship cargo oil tank", publication (announcement) number "CN102114581B", which discloses a kind of gas protection welding wire for oil ship cargo oil tank, the gas protection welding wire includes: C 0.01-0.15%, Si 0.1-1%, Mn 1-2%, P≤0.015%, S≤0.012%, Ni 0.1-1%, Cu 0.1-1%, 0<Cr≤0.1%, Ti 0.01-0.25%, 0<Al≤0.1%, the balance is iron and other inevitable impurities by mass percentage.According to the gas protection welding wire for oil ship cargo oil tank of the present application, even in the corrosive environment of crude oil, it also has excellent uniform corrosion resistance and pitting corrosion resistance, and the weld also has good mechanical properties.

[0004] However, the technology does not involve the technical problems and technical solutions of the present application. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problems that: in view of the deficiencies of prior art, provide a kind of simple structure, effectively realize component structure integration, reduce manufacturing, maintenance, maintenance cost, save component installation space, reduce ship energy consumption, meet the actual demand of oil ship cargo oil tank protection and ballast water treatment combined system of ship.

[0006] To solve the above-mentioned technical problems, the technical scheme adopted by the utility model is:

[0007] The utility model discloses a kind of oiling ship cargo oil tank protection and ballast water treatment combined system, including nitrogen generation unit, nitrogen filling oxygen driving ballast water treatment component and cargo oil tank nitrogen protection component, nitrogen outlet pipeline of nitrogen generation unit is connected with nitrogen supply pipeline, nitrogen supply pipeline is connected with the ballast tank of nitrogen filling oxygen driving ballast water treatment component by first communication branch pipe, nitrogen supply pipeline is connected with the cargo oil tank of cargo oil tank nitrogen protection component by second communication branch pipe, nitrogen inlet is connected with the entrance of miscellaneous air compressor on the ship by nitrogen outlet pipeline.

[0008] The nitrogen generation unit comprises, in sequence through a pipeline, an air compressor, an air bottle, a filter, a dryer and a membrane nitrogen generator.

[0009] One end of the air compressor is connected with an air inlet, the other end of the air compressor is connected with one end of the air bottle, the other end of the air bottle is connected with one end of the filter, the other end of the filter is connected with one end of the dryer, the other end of the dryer is connected with one end of the membrane nitrogen generator, and the other end of the membrane nitrogen generator is connected with the nitrogen outlet pipeline.

[0010] The nitrogen filling oxygen driving ballast water treatment component comprises a ballast pump, an automatic backwashing filter, a membrane separation device, a ballast tank breather device with pressure maintaining function and a ballast tank.

[0011] One end of the ballast pump is connected with the outside of the ship, the other end of the ballast pump is connected with one end of the automatic backwashing filter, the other end of the automatic backwashing filter is connected with one end of the membrane separation device, the other end of the membrane separation device is connected with the first communication branch pipe, and the ballast tank breather device with pressure maintaining function is arranged on the ballast tank.

[0012] A remote control valve is arranged on the first pipeline branch pipe of the nitrogen filling oxygen driving ballast water treatment component, and a pressure sensor is arranged on the ballast tank.

[0013] The cargo oil tank nitrogen protection component comprises a cargo oil tank, a cargo oil tank oxygen concentration detector, a cargo oil tank pressure sensor and a vacuum valve.

[0014] A remote control valve is further arranged on the second communication branch pipe of the cargo oil tank nitrogen protection component.

[0015] The automatic backwashing filter and the membrane separation device are respectively connected to the outside of the ship through the connection branch pipes, the automatic backwashing filter is connected with a first backwashing compressed air pipeline, and the membrane separation device is connected with a second backwashing compressed air pipeline.

[0016] The ballast tank breather device with pressure maintaining function is a breather cap.

[0017] The technical scheme of the utility model has the following working principles and beneficial effects.

[0018] The oil tank protection and ballast water treatment combined system of the oil tanker, when the structure is arranged, the nitrogen generating unit is used for manufacturing nitrogen, and the nitrogen needs to be respectively supplied to the nitrogen filling and oxygen expelling ballast water treatment component and the oil tank nitrogen protection component. The nitrogen outlet pipeline of the nitrogen generating unit is communicated with the nitrogen supply pipeline, the nitrogen supply pipeline is communicated with the ballast tank of the nitrogen filling and oxygen expelling ballast water treatment component through the first communication branch pipe, so that the nitrogen is supplied to the ballast tank according to the requirement, the nitrogen supply pipeline is communicated with the oil tank of the oil tank nitrogen protection component through the second communication branch pipe, so that the nitrogen is supplied to the oil tank according to the requirement, and the nitrogen outlet pipeline is communicated with the inlet of the miscellaneous air compressor on the ship. When the nitrogen generating unit fails, the nitrogen is temporarily supplied through the inlet of the miscellaneous air compressor on the ship, so that the ballast tank and the oil tank are normally supplied. The actual requirement of the ship is effectively met. BRIEF DESCRIPTION OF DRAWINGS

[0019] The content expressed by each drawing of the present specification and the marks in the drawings are briefly described as follows:

[0020] Figure 1 It is a structure schematic view of the oil tank protection and ballast water treatment combined system of the oil tanker.

[0021] The marks in the drawings are as follows:

[0022] A, nitrogen generating unit; B, nitrogen filling and oxygen expelling ballast water treatment component; C, oil tank nitrogen protection component;

[0023] 1, air compressor; 2, air bottle; 3, filter; 4, dryer; 5, membrane type nitrogen generator; 6, ballast pump; 7, automatic backwashing filter; 8, membrane separation device; 9, remote control valve; 10, vacuum valve; 11, ballast tank breather device with pressure maintaining function; 12, pressure sensor; 13, oil tank oxygen concentration detector; 14, nitrogen outlet pipeline; 15, nitrogen supply pipeline; 16, first communication branch pipe; 17, ballast tank; 18, second communication branch pipe; 19, oil tank; 20, inlet of miscellaneous air compressor on the ship; 21, air inlet; 22, outside of ship side; 23, first backwashing compressed air pipeline; 24, second backwashing compressed air pipeline; 25, connecting branch pipe. DETAILED DESCRIPTION

[0024] The specific embodiments of the present application are further described in detail as follows by comparing the drawings and the description of the embodiments, the shape, structure, mutual position and connection relationship between the parts, the action and working principle of each component involved in the specific embodiments of the present application are described in detail:

[0025] As shown in the accompanying Figure 1The utility model discloses a kind of oiling ship cargo oil tank protection and ballast water treatment combined system, including nitrogen generation unit A, nitrogen filling oxygen expelling ballast water treatment component B and cargo oil tank nitrogen protection component C, nitrogen outlet pipeline 14 of nitrogen generation unit A is communicated nitrogen supply pipeline 15, nitrogen supply pipeline 15 is communicated the ballast tank 17 of nitrogen filling oxygen expelling ballast water treatment component B by first communication branch pipe 16, nitrogen supply pipeline 15 is communicated the cargo oil tank 19 of cargo oil tank nitrogen protection component C by second communication branch pipe 18, nitrogen outlet pipeline 14 is communicated on-ship miscellaneous air compressor interface 20.The above structure, for the deficiency in the prior art, improved technical solution is presented.Structure is set, nitrogen generation unit A is used to manufacture nitrogen, nitrogen needs to supply nitrogen filling oxygen expelling ballast water treatment component B and cargo oil tank nitrogen protection component C respectively.Nitrogen outlet pipeline 14 of nitrogen generation unit A is communicated nitrogen supply pipeline 15, nitrogen supply pipeline 15 is communicated the ballast tank 17 of nitrogen filling oxygen expelling ballast water treatment component B by first communication branch pipe 16, so as to supply nitrogen for ballast tank 17 as required, nitrogen supply pipeline 15 is communicated the cargo oil tank 19 of cargo oil tank nitrogen protection component C by second communication branch pipe 18, so as to supply nitrogen for cargo oil tank 19 as required, nitrogen outlet pipeline 14 is communicated on-ship miscellaneous air compressor interface 20, when nitrogen generation unit A fails, temporarily supply nitrogen through on-ship miscellaneous air compressor interface 20, ensure that ballast tank 19 and cargo oil tank 19 are normally supplied.The oiling ship cargo oil tank protection and ballast water treatment combined system of the utility model combines two components needing to use nitrogen together, nitrogen is manufactured and supplied as a whole, nitrogen manufacturing component need not be set respectively, save space, reduce energy consumption, reduce manufacturing cost and maintenance, maintenance cost, ballast water handled by this mode forms long-term effective protection to paint coating in ballast tank.

[0026] The nitrogen generation unit A includes an air compressor 1, an air bottle 2, a filter 3, a dryer 4 and a membrane nitrogen generator 5 connected in sequence by pipelines.The air compressor 1 is communicated with an air inlet 21 at one end, and communicated with one end of the air bottle 2 at the other end.The other end of the air bottle 2 is communicated with one end of the filter 3, and the other end of the filter 3 is communicated with one end of the dryer 4.The other end of the dryer 4 is communicated with one end of the membrane nitrogen generator 5, and the other end of the membrane nitrogen generator 5 is communicated with a nitrogen outlet pipeline 14.The above structure, the nitrogen generation unit A starts the air compressor 1 to supplement compressed air through the pressure sensor 12 provided on the nitrogen storage bottle in the membrane nitrogen generator 5, and extracts nitrogen through the membrane nitrogen generator 5.If the air compressor 1 fails to start, a fault alarm can be sent, and the on-ship miscellaneous air compressor is automatically started to supplement compressed air for extracting nitrogen through the membrane nitrogen generator 5, which is a backup solution.The nitrogen outlet pipeline 14 of the membrane nitrogen generator 5 is connected with the nitrogen supply pipeline 15 for supplying nitrogen to the ballast tank and the cargo oil tank.

[0027] The nitrogen-filling and oxygen-expelling ballast water treatment component comprises a ballast pump 6, an automatic backwashing filter 7, a membrane separation device 8, a ballast tank air breather 11 with pressure maintaining function, and a ballast tank 17. One end of the ballast pump 6 is connected to the outside of the ship 22, the other end of the ballast pump 6 is connected to one end of the automatic backwashing filter 7, the other end of the automatic backwashing filter 7 is connected to one end of the membrane separation device 8, the other end of the membrane separation device 8 is connected to the first communication branch pipe 16, and the ballast tank 17 is provided with the ballast tank air breather 11 with pressure maintaining function. The nitrogen-filling and oxygen-expelling ballast pipeline is connected to the ballast pump 6 at one end, filtered through the automatic backwashing filter 7 and the membrane separation device 8, and connected to the ballast tank 17 through the first communication pipeline 16. Nitrogen from the nitrogen supply pipeline 15 enters the first communication pipeline 17, dissolves into the ballast water, and then enters the ballast tank 17. The ballast tank air breather 11 with pressure maintaining function is arranged at the top of the ballast tank 17. When the pressure in the tank reaches 2-3 bar, the air breather 11 at the bottom of the tank is opened, so that the pressure in the ballast tank 17 is maintained within a safe range, the growth of organisms is inhibited, and the paint coating of the ballast tank 17 is protected.

[0028] The first pipeline branch pipe 16 of the nitrogen-filling and oxygen-expelling ballast water treatment component B is provided with a remote control valve 9, and the ballast tank 17 is provided with a pressure sensor 12. Each remote control valve 9 and each pressure sensor 12 is connected to a control component, so that automatic control is realized.

[0029] The cargo oil tank nitrogen protection component C comprises a cargo oil tank 19, a cargo oil tank oxygen concentration detector 13, a cargo oil tank pressure sensor 12, and a vacuum valve 10. The second communication branch pipe 18 of the cargo oil tank nitrogen protection component C is also provided with a remote control valve 9. The nitrogen outlet pipeline 14 of the nitrogen generator 5 is connected to the cargo oil tank 19 through the second communication branch pipe 18 to form a nitrogen protection pipeline. The cargo oil tank oxygen concentration detector 13 and the pressure sensor 12 of the cargo oil tank 19 analyze the oxygen content in the cargo oil tank 19 and the pressure of the cargo oil tank 19 to ensure that the oxygen content does not exceed 8% (measured by volume) and the pressure is in a positive pressure state. When the oxygen content in the cargo oil tank 19 approaches the upper limit of the safety value or the pressure appears in a negative pressure state, the remote control valve 9 on the second communication pipeline of the cargo oil tank 19 will automatically open to supplement nitrogen to the cargo oil tank.

[0030] The automatic backwashing filter 7 and the membrane separation device 8 are respectively connected to the outside of the ship 22 through the connecting branch pipe 25, the automatic backwashing filter 7 is connected to the first backwashing compressed air pipeline 23, and the membrane separation device 8 is connected to the second backwashing compressed air pipeline 24. The first backwashing compressed air pipeline 23 and the second backwashing compressed air pipeline 24 are started for backwashing.

[0031] The ballast tank air breather 11 with pressure maintaining function is an air breather cap.

[0032] The utility model has carried on the exemplary description above binding the drawing, obviously the utility model concrete implementation is not limited by above-mentioned mode, as long as various improvements of method conception and technical scheme that adopted the utility model or the conception and technical scheme of the utility model are not improved and are directly applied to other occasions, are all in the protection scope of the utility model.

Claims

1. An integrated system for protecting a ship's cargo oil tank from oiling and for treating ballast water, characterized in that: It comprises nitrogen generation unit (A), nitrogen filling and oxygen expelling ballast water treatment component (B) and cargo oil tank nitrogen protection component (C), nitrogen outlet pipeline (14) of nitrogen generation unit (A) is communicated with nitrogen supply pipeline (15), nitrogen supply pipeline (15) is communicated with ballast tank (17) of nitrogen filling and oxygen expelling ballast water treatment component (B) through first communication branch pipe (16), nitrogen supply pipeline (15) is communicated with cargo oil tank (19) of cargo oil tank nitrogen protection component (C) through second communication branch pipe (18), and nitrogen outlet pipeline (14) is communicated with ship miscellaneous air compressor inlet (20).

2. The oil tanker cargo oil tank protection and ballast water treatment combined system according to claim 1, characterized by: The nitrogen generation unit (A) comprises an air compressor (1), an air bottle (2), a filter (3), a dryer (4) and a membrane nitrogen generator (5) connected in sequence by pipelines.

3. The combined system for protecting an oil tanker cargo tank and treating ballast water according to claim 2, characterized in that: One end of the air compressor (1) is communicated with an air inlet (21), the other end of the air compressor (1) is communicated with one end of the air bottle (2), the other end of the air bottle (2) is communicated with one end of the filter (3), the other end of the filter (3) is communicated with one end of the dryer (4), the other end of the dryer (4) is communicated with one end of the membrane nitrogen generator (5), and the other end of the membrane nitrogen generator (5) is communicated with the nitrogen outlet pipeline (14).

4. The oil tanker cargo oil tank protection and ballast water treatment combined system according to claim 1 or 2, characterized by: The nitrogen filling and oxygen expelling ballast water treatment component comprises a ballast pump (6), an automatic backwashing filter (7), a membrane separation device (8), a ballast tank air permeation device (11) with pressure maintaining function and a ballast tank (17).

5. The oil tanker cargo oil tank protection and ballast water treatment combined system according to claim 4, characterized by: One end of the ballast pump (6) is communicated with a ship side (22), the other end of the ballast pump (6) is communicated with one end of the automatic backwashing filter (7), the other end of the automatic backwashing filter (7) is communicated with one end of the membrane separation device (8), the other end of the membrane separation device (8) is communicated with the first communication branch pipe (16), and the ballast tank (17) is provided with the ballast tank air permeation device (11) with pressure maintaining function.

6. The oil vaporized ship cargo oil tank protection and ballast water treatment combined system according to claim 1 or 2, characterized in that: The first pipeline branch pipe (16) of the nitrogen filling and oxygen expelling ballast water treatment component (B) is provided with a remote control valve (9), and the ballast tank (17) is provided with a pressure sensor (12).

7. The oil vaporized ship cargo oil tank protection and ballast water treatment combined system according to claim 1 or 2, characterized in that: The cargo oil tank nitrogen protection component (C) comprises a cargo oil tank (19), a cargo oil tank oxygen concentration detector (13), a pressure sensor (12) and a vacuum valve (10).

8. The oil tanker cargo oil tank protection and ballast water treatment combined system according to claim 7, characterized by: The second communication branch pipe (18) of the cargo oil tank nitrogen protection component (C) is also provided with a remote control valve (9).

9. The oil tanker cargo oil tank protection and ballast water treatment combined system according to claim 5, characterized by: The automatic backwashing filter (7) and the membrane separation device (8) are connected to the ship side (22) through connection branch pipes (25) respectively, the automatic backwashing filter (7) is communicated with a first backwashing compressed air pipeline (23), and the membrane separation device (8) is communicated with a second backwashing compressed air pipeline (24).

10. The oil tanker cargo oil tank protection and ballast water treatment combined system according to claim 5, characterized by: The ballast tank air permeation device (11) with pressure maintaining function is an air permeation cap.

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