KR20110041854A - Oil supplying system for ships - Google Patents

Abstract

PURPOSE: A marine gas oil supply system is provided to maintain the uniform velocity suitable for a generator and engine by cooling the oil under 21°C. CONSTITUTION: A marine gas oil supply system comprises a generator(10), an engine(20) and a marine gas oil feeding member. The marine gas oil feeding member comprises a MGO tank(30) and a cooling unit(40). The marine gas oil feeding member supplies the marine gas oil to a generator and engine. The MGO tank stores marine gas oil. The cooling unit is installed on a flow path(51) connected to the generator and engine from the MGO tank. The cooling unit comprises a compressor, a condenser, an expansion valve and an evaporator. The cooling unit keeps marine gas oil 25 ~ 15°C.

Description

Oil supplying system for ships

The present invention relates to a fuel supply system for ships, and more particularly, to provide an MGE tank for storing marine gas oil on an existing fuel supply system and to use a refrigerant on a flow path connected to a generator and an engine in the MGE tank. By installing a cooling unit to cool marine gas oil to a low temperature below 21 ℃, it is possible to use marine gas oil by maintaining the viscosity required by generators and engines according to the required (port conditions). A fuel supply system.

In general, the fuel used for generators and engines of ships is mainly composed of marine diesel oil (MT) or heavy fuel oil (HSF).

Among these fuels, marine diesel oil is used without heating, while heavy fuel oil is heated through a heater to maintain the viscosity required by the generator.

For example, a brief description of a marine fuel supply system of the prior art is as follows.

As shown in Figure 1, the prior art marine fuel supply system for supplying marine diesel oil and heavy fuel oil to the generator 10 and the engine 20, the system configuration is to store the respective marine diesel oil An intermediate tank 31 and a heavy fuel tank 32 for storing heavy fuel oil are provided, and flow paths extending from the tanks 31 and 32 to the generator 10 and the engine 20 are provided. Each pump (supply pump 33, circulation pump 34, booster pump 36, etc.), heater 35, viscosity controller 37, venting pipe 38, etc. are provided in the phase. .

In addition, the paths through which fuel is supplied to the generator 10 and the engine 20 from the corresponding tanks 31 and 32 according to these configurations will be described below.

First, looking at the fuel supply path of the heavy fuel oil used by heating through the heater 35, through the supply pump 33 in the heavy fuel tank 32 via the circulation pump 34 and the heater 35, Then, it is supplied to the generator 10 and the engine 20 via the viscosity controller 37.

That is, the flow path is briefly shown, the heavy fuel tank (32)-> supply pump (33)-> circulation pump (34)-> heater (35)-> viscosity controller (37)-> generator (10) and engine Go through the route supplied to (20).

Here, the fuel supplied to the generator 10 and the engine 20 passes through the generator 10 and the engine 20, and after venting the air in the fuel to the outside in the venting pipe 38, the circulation pump 34 again. It is continuously circulated along the flow path to the furnace.

On the other hand, looking at the fuel supply path of the marine diesel oil, it is directly supplied to the generator 10 or the engine 20 through the bus pump 60 in the MDI tank 31.

That is, briefly looking at the flow path, through the path of the md tank 31-> booster pump 60-> generator 10 and the engine 20.

Here, the fuel supplied to the generator 10 and the engine 20 passes through the generator 10 and the engine 20, and after venting the air in the fuel to the outside in the venting pipe 38, the circulation pump 34 again. It is continuously circulated and supplied along the flow path flowing to).

However, since the fuel supply system of the prior art as described above is a system for supplying marine diesel oil and heavy fuel oil, the use of marine diesel oil or heavy fuel oil is regulated according to the port conditions and marine gas to prevent air pollution. When using oil (Meggio: marine gas oil) has a relatively low viscosity has a problem that can not be applied to the existing fuel supply system.

The present invention has been made to solve such a problem, and provides an Mg tank for storing marine gas oil on the existing fuel supply system and cooling using the refrigerant on the flow path connected to the generator and engine in the Mg tank By installing a unit to cool off the offshore gas oil to a low temperature below 21 ℃, it is possible to use the offshore gas oil by maintaining the viscosity required by the generator and the engine as required (the relevant port conditions). Therefore, there is no need to install a separate Meggio supply system is to provide a fuel supply system for ships that can reduce the cost.

The marine fuel supply system of the present invention devised to achieve the above object is in the marine fuel supply system for supplying marine diesel oil (MD) and heavy fuel oil (HSF) to the generator and engine of the vessel, the fuel The off-gas oil supply means for supplying the off-gas oil (mgio) to the generator and the engine in the supply system is characterized in that it is further provided.

Further, in the marine fuel supply system according to the present invention, the marine gas oil supply means is provided with an Mg tank for storing the marine gas oil, the cooling unit is provided on the flow path connected to the generator and the engine in the mg tank It is preferred to be installed.

In addition, in the marine fuel supply system according to the present invention, the cooling unit is a compressor for compressing the refrigerant at high temperature and high pressure, a condenser for dissipating the refrigerant at high temperature and high pressure, an expansion valve for reducing the refrigerant to a low temperature low pressure liquefied state, and marine It is preferably a refrigeration cycle consisting of an evaporator for cooling the gas oil to low temperature.

In addition, in the marine fuel supply system according to the present invention, the condenser is preferably further provided with a cooling water circulation line for cooling the refrigerant of high temperature, high pressure.

In addition, in the marine fuel supply system according to the present invention, the cooling unit preferably has a cooling capability to cool the marine gas oil in the range of 25 ~ 15 ℃.

In addition, in the marine fuel supply system according to the present invention, it is preferable that the cooling unit is configured as a single unit so that the cooled marine gas oil can be simultaneously supplied to the generator and the engine.

As described above, the marine fuel supply system according to an embodiment of the present invention provides an MGE tank for storing marine gas oil on the existing fuel supply system and the refrigerant on the flow path connected to the generator and the engine in the MGE tank By installing a cooling unit that can use to cool off the marine gas oil to a low temperature below 21 ℃, it is possible to use the marine gas oil by maintaining the viscosity required by the generator and the engine as required (the relevant port conditions). Of course, there is no need to install a separate Meggio supply system, thereby reducing costs.

The present invention having the above configuration will be described in more detail with reference to the following drawings.

As shown in Figures 2 and 3, the marine fuel supply system according to an embodiment of the present invention is marine diesel oil (MD) and heavy fuel oil (HSF) to the generator 10 and the engine 20 of the vessel In the marine fuel supply system for supplying the gas, the marine gas oil supply means for supplying the marine gas oil (mgio) to the generator 10 and the engine 20 is configured to the fuel supply system.

Here, the marine gas oil supply means is provided with an Mg tank 30 for storing the off-gas oil, on the flow path 51 connected to the generator 10 and the engine 20 in the Mg tank (30). The cooling unit 40 is configured to be installed.

The cooling unit 40 includes a compressor 41 for compressing a refrigerant at high temperature and high pressure, a condenser 42 for radiating heat at a high temperature and high pressure, an expansion valve 43 for reducing the refrigerant to a low temperature low pressure liquefied state, and marine gas. It has a refrigeration cycle structure consisting of an evaporator 44 for cooling the oil to a low temperature.

The condenser 42 is provided with a cooling water circulation line 45 for cooling the high temperature and high pressure refrigerant.

Here, the cooling water circulated to the cooling water circulation line 45 is preferably using fresh water (sea water).

In addition, the cooling unit 40 preferably has a cooling performance to cool the marine gas oil in the range of 25 ~ 15 ℃, that is, more preferably 21 ℃ or less.

Reference numeral 46 denotes an oil separator for separating the oil contained in the high temperature and high pressure refrigerant passing through the compressor (41).

It will be apparent that the cooling unit 40 is automatically controlled by a separate controller (not shown).

In addition, the repeated description of the code | symbol demonstrated in the prior art among the various components provided on the flow path 51 is abbreviate | omitted.

Marine fuel supply system according to one embodiment of the present invention according to such a configuration is basically the marine diesel oil and heavy fuel oil from the conventional diesel tank 31 and heavy fuel tank 32, the generator 10 and the engine 20 When supplying to the sea and when anchored in the corresponding port where their use is regulated, instead of stopping their supply is to supply the marine gas oil of the present invention.

Looking at the route that the fuel is supplied to the generator 10 and the engine 20 from the corresponding GM tank 30 of the marine fuel supply system of the present invention as follows.

The fuel supply path of the marine gas oil of the present invention is directly through the cooling unit 40 through the supply pump 33, the circulation pump 34 and the clay controller 37 in the Mg tank 30, the generator 10 and the engine 20 is supplied.

In other words, the flow path is briefly shown, MG tank (30)-> supply pump (33)-> circulation pump (34)-> clay controller (37)-> cooling unit (40)-> generator (10) and engine Go through the path of 20.

At this time, the heater 35 on the flow path 51 stops the operation or bypasses the heater 35 to have the flow.

In addition, the fuel supplied to the generator 10 and the engine 20 has a flow circulated from the venting pipe 38 to the circulation pump 34 after passing through the generator 10 and the engine 20.

 On the other hand, during the fuel supply in this way, in the condenser 42 of each cooler unit 40, the refrigerant of high temperature and high pressure is radiated by circulation of the cooling water through the cooling water circulation line 45, and consequently in the evaporator 44. Marine gas oil can be supplied continuously while maintaining below 21 ℃.

In the above description of the preferred embodiment of the present invention, but the embodiment is simply applied in combination with the existing known art, as well as those of ordinary skill in the art to which the invention belongs in the claims and detailed description of the present invention It should be understood that the available technology is naturally included in the technical scope of the present invention.

1 is a schematic diagram showing a marine fuel supply system according to the prior art.

Figure 2 is a schematic diagram showing a marine fuel supply system according to an embodiment of the present invention.

3 is a main part opening diagram showing a cooling unit of a marine fuel supply system according to an embodiment of the present invention.

** Description of symbols for the main parts of the drawing **

10: generator 20: engine

30: Mg tank 31: Mg tank

32: heavy fuel tank 33: supply pump

34: circulation pump 35: heater

36: booster pump 37: viscosity controller

38: venting pipe 40: cooling unit

41 Compressor 42 Condenser

43: expansion valve 44: evaporator

45: cooling water circulation line 46: oil separator

51: Euro

Claims (6)

In the marine fuel supply system for supplying marine diesel oil (MD) and heavy fuel oil (HSF) to the generator 10 and the engine 20 of the ship, Marine fuel oil supply means for supplying the marine gas oil (mgio) to the fuel supply system to the generator (10) and the engine (20) further comprising. The method of claim 1, The marine gas oil supply means, The MGE tank 30 for storing the marine gas oil is provided, and the cooling unit 40 is installed on the flow path 51 connected to the generator 10 and the engine 20 in the MGE tank 30. Marine fuel supply system. The method of claim 2, The cooling unit 40 includes a compressor 41 for compressing a refrigerant at high temperature and high pressure, a condenser 42 for radiating heat at a high temperature and high pressure, an expansion valve 43 for reducing the refrigerant to a low temperature low pressure liquefied state, and marine gas. Ship refrigeration cycle, characterized in that the refrigeration cycle consisting of an evaporator 44 for cooling the oil to a low temperature. The method of claim 3, The condenser 42 is a marine fuel supply system, characterized in that further provided with a cooling water circulation line 45 for cooling the refrigerant of high temperature, high pressure. The method of claim 2, The cooling unit (40) is a marine fuel supply system characterized in that it has a cooling capability to cool the marine gas oil in the range of 25 ~ 15 ℃. The method of claim 2, The cooling unit (40) is composed of a single unit is a marine fuel supply system, characterized in that it is possible to simultaneously supply the cooled offshore gas oil to the generator (10) and the engine (20).

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