System disposal of contaminated bilge water in a ship's steam boilers

 

(57) Abstract:

Usage: shipbuilding. The inventive part of the disposal system introduces the ejector 5 with the annular nozzle connected to the fuel line and regulator combustion boiler, the outlet of the ejector 5 is connected to the pipe 8 fuel supply to the injectors, and the fuel line 6 on the nozzle of the ejector, fuel supply 8 to the nozzle of the boiler and the suction line of the ejector is equipped with a shut-off bodies 7, made in the form of non-return valves. 2 C.p. f-crystals, 1 Il.

The invention relates to shipbuilding, in particular to the structures of the fuel systems marine steam boilers.

A well-known system of disposal of contaminated bilge water in a ship's steam boilers containing fuel pump, inlet pipe which is communicated with the fuel tank, and the discharge nozzles of the boiler, and the ejector, a nozzle through which the pipe with a shut-off body is connected with the pressure pipe of the fuel pump and the suction inlet of the ejector through the suction pipe with a shut-off body is connected to the collection vessel contaminated oily water.

This system is environmentally hazardous, the selected defects. In particular, time-limited work, which for marine steam boilers is 1-2 hours This is because the moisture content in the fuel going to the combustion, is constantly increasing due to a partial refund water fuel emulsion in the fuel system. This system provides for the collection and disposal of oil film from the surface of contaminated water resulting from spills and leaks of fuel and lubricants.

The aim of the present invention is the maximum environmental safety and efficiency of ships with boiler-turbine power plants in the period of their exploitation - tion, as well as improving the environmental situation in their home base and increased vessel traffic.

The technical result of the invention is achieved in that in the known system, the nozzle of the ejector is made circular, and the outlet of the ejector is connected to the fuel line to the injectors of the boiler. In addition, the locking bodies on the suction side of the ejector and the fuel line on an annular nozzle ejector made in the form of non-return valves. In addition, the fuel line to the injectors from the ejector sabellaria system, the overall look.

System disposal of contaminated bilge water in a ship's steam boilers includes a fuel tank 1, the fuel pump 2, the capacity of 3 collect dirty water, burning regulator (remote control combustion) 4, the ejector 5 with a ring-shaped nozzle pipe 6 fuel supply to the nozzle of the ejector non-return valve 7, line 8 fuel (water fuel emulsion) on injector boiler non-return valve 7, the suction pipe 9 of the ejector non-return valve 7, a flexible hose 10 with the receiving filter 11, the device 12 to control the depth of immersion of the hose, pipeline 13-intake of polluted water from the tank 3 collect dirty water.

The system works as follows.

During operation of the fuel pump 2 and the fuel regulator combustion 4 ejector 5 creates negative pressure. Unheated contaminated with oil sea salt or fresh water through the suction filter 11 and through a flexible hose 10 is supplied into the working chamber of the ejector 5, where under pressure through an annular nozzle enters the oil. The fuel is mixed with water in the mixing chamber of the jet, forming a fuel fine emulsion, which is supplied to the pipelines is vodotoplivnoy emulsion is adjusted by increasing fuel pressure in the pipe 8 fuel supply to the injectors, when the fuel pressure in the pipe 6 fuel supply to the ejector continuously in all modes. With increasing fuel pressure in the pipe 8 when the operation of the boiler at high loads, the differential pressure of the ejector is reduced, reducing the amount of drawn water out of the hold. The maximum concentration of water 10% in water fuel emulsion can be achieved during the ship's boiler at low loads. In the steady state operation of the boiler fuel moisture content of the emulsion entering the combustion, constant. With the help of the device 12 regulation dive hose, the hose 10 is floating on the water surface and remove surface the most contaminated oil layer bilge water. If necessary, the system can be switched to suction from the tank 3 collect dirty water.

1. SYSTEM DISPOSAL of CONTAMINATED BILGE WATER IN a SHIP's STEAM BOILERS containing fuel pump, inlet pipe which is communicated with the fuel tank, and the discharge nozzles of the boiler, and the ejector, a nozzle through which the pipe with a shut-off body is connected with the pressure pipe of the fuel pump and the suction inlet of the ejector through the suction pipe with shut-off body is on the ring, and the outlet of the ejector is connected to the fuel line to the injectors of the boiler.

2. The system under item 1, characterized in that the shut-off bodies on the suction side of the ejector and the fuel line on an annular nozzle ejector made in the form of non-return valves.

3. The system under item 1, characterized in that the fuel line to the injectors from the ejector is equipped with a shut-off body, made in the form of non-return valve.

 

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