KR20130114887A - Fuel purification system of ships - Google Patents

Abstract

PURPOSE: A fuel purification system for a ship is provided to perform an auto fuel filling function by detecting the residual amount of fuel stored in a tank. CONSTITUTION: A fuel purification system for a ship comprises a tank, a feed pump (22), a fuel input switching valve (V-1), a purifier (26), a heater (28), a path control switching valve (V-2), a fuel output switching valve (V-4), a water level sensor, and a control panel. The tank stores multiple kinds of fuel therein to be independent from each other. The feed pump feeds the stored fuel. The fuel input switching valve selectively supplies fuel to the feed pump. The purifier purifies the fuel supplied from the feed pump. The heater selectively preheats the fuel. The path control switching valve controls the flow path of the fuel by bypassing or passing through the heater according to the kind of fuel.

Description

Fuel purification system of ships

The present invention relates to a whey cleaning apparatus of a ship, and more particularly, to automatically control the operation of an oil cleaning facility by detecting the residual amount of fuel stored in a tank, and to automatically supply a supply path according to the type of fuel when purifying oil. The present invention relates to a whey cleaning apparatus for ships that enables a normal oil purification function to be implemented as a single oil cleaning facility through a switching function.

In general, the fuel oil used in ships can be classified into heavy fuel oil (HFO) and marine diesel oil (MDO), and these fuels are each individually stored in separate tanks. It is stored and used for operation of propulsion engine and power generation engine.

In this case, heavy oil is mainly used for the operation of the propulsion engine because it is relatively inexpensive and excellent in explosive power compared to other oils, and diesel is a propulsion engine because the explosive power is relatively low compared to the heavy oil but the start point is low and the startability is excellent. This is used for frequent entry and departure. Accordingly, a so-called bunker change operation is performed in a ship in which fuel used before arrival is changed from heavy oil to diesel.

On the other hand, most of the fuel used for ships corresponds to low lubrication oil which emits a large amount of pollutants, so it should be used after purification. As a result, the ship must build an oil cleaning system for the purification of fuel. In particular, since heavy oil is a high viscosity oil unlike diesel, it must be used in a state of high temperature using a heater to realize complete combustion in the cylinder of the engine, and in addition, the amount of exhaust gas is reduced and the explosive power is increased. do.

Therefore, the oil cleaning equipment provided in the ship must be provided with a heater that can increase the temperature of the oil together with the purifier. In addition, the oil used in the vessel is stored in a separate tank for each oil type, the residual amount of stored fuel is detected by the water level sensor can be warned when the remaining amount is insufficient.

However, in order to independently build the above-mentioned oil cleaning facilities of the conventional vessels by oil type, economical efficiency is inferior in terms of initial investment cost and space utilization, and thus it is provided as a single facility that can share the purification work for a plurality of fuels. Accordingly, the conventional single oil cleaning equipment should be provided with a large number of open / close control valves in the oil supply path to prevent mixing between different fuels during purification, and the opening and closing of each valve should be made by manual operation. In addition, it must be done at the correct time in the corresponding pipeline.

As a result, the oil cleaning equipment of the conventional vessel has a lot of difficulties in its operation. For example, when manual refueling by an operator is not properly performed when a warning occurs due to insufficient residual amount of fuel stored in each oil type tank, there is a risk of damage to various equipment such as damage to a pump that is sucked from the tank. In particular, diesel is to be supplied for operation of the power generation engine in the emergency situation of the ship, if the appropriate level of residual amount is not secured in the tank may cause a power outage.

Therefore, the present invention has been devised in view of the above-mentioned matters, and by detecting the residual amount of fuel stored in the tank and automatically operating the oil cleaning equipment through this, it is possible to ensure the appropriate level of usable fuel at all times. In addition, the automatic conversion of the supply path provided to the purifier according to the type of fuel when purifying the oil can be implemented, and through the sharing of oil clean facilities, it is possible to eliminate the mixing of heterogeneous fuels. The purpose is to enable operation.

The present invention for achieving the above object is a whey device of a ship, a tank for storing a plurality of fuels independently, a feed pump for supplying fuel stored in the tank, located between the tank and the feed pump A fuel input switching valve installed in a fuel supply path to selectively provide only a single fuel among a plurality of types of fuel to the feed pump, a purifier for purifying the fuel supplied from the feed pump, and a fuel between the feed pump and the purifier A heater which is installed during the supply path of the fuel to selectively preheat the fuel, is installed during the supply path of the fuel between the feed pump and the purifier and passes through the heater or bypasses the heater depending on the type of fuel to Path control switching valve to control the flow path, the type of fuel purified through the purifier According to the fuel output switching valve for adjusting the flow path of the fuel to the corresponding tank of the tank, a level detection sensor for detecting the residual amount of the fuel stored in the tank, and according to the residual amount information of the fuel detected from the level detection sensor A control panel unit for determining the type of fuel, and controls the operation of the feed pump, the purifier, and the plurality of switching valves, in particular the control panel unit according to the type of fuel provided to the feed pump The control of the operation of the switching valve of the characterized in that to prevent mixing between different fuels in the fuel supply path.

In the present invention, the tank comprises a heavy oil storage tank for storing fuel before purification, a heavy oil settling tank, a diesel fuel storage tank, and a heavy oil service tank for storing fuel after purification, and a diesel service tank.

In the present invention, the heavy oil set tank is characterized in that it comprises an ultrasonic sensor for the detection of the precipitated water, and an automatic drain valve for automatically controlling the discharge to the outside through the detection of the precipitated water by the ultrasonic sensor. do.

In the present invention, the water level detection sensor is characterized by consisting of the upper and lower water level sensor installed in the heavy oil settle tank, the water level sensor installed in the heavy oil service tank, and the water level sensor installed in the light oil service tank.

The present invention further includes a transfer pump for supplying fuel stored in the heavy oil storage tank to the heavy oil settling tank, wherein the control panel unit transfers the fuel according to the remaining amount of fuel in the heavy oil settling tank detected by the upper / lower level sensor. It is characterized by controlling the driving of the pump.

The present invention is provided in the supply path of the fuel between the feed pump and the purifier to adjust the supply amount of the drain path to return to the tank without purification of the fuel provided from the feed pump to the purifier to the tank of the fuel by the purifier It characterized in that it further comprises a drain control switching valve for controlling the clean efficiency.

In the present invention, the drain path is composed of a heavy oil drain line for communicatively connecting between the feed pump and the heavy oil settling tank, a diesel oil drain line for communicatively connecting the feed pump and the diesel storage tank, The drain control switching valve is characterized in that consisting of a heavy oil drain control valve installed in the heavy oil drain line, a diesel oil drain control valve installed in the diesel oil drain line.

The present invention further includes a bypass control switching valve installed in the supply path of the fuel between the feed pump and the purifier to adjust the flow path of the fuel to bypass the purifier when an abnormality occurs in the purifier. And a bypass path control switching valve installed in a path bypassing the purifier through a control valve to adjust the bypass path according to the type of fuel, and the heater according to the type of fuel provided to the feed pump. It characterized in that it further comprises a steam input switching valve for regulating the flow path of the steam supplied to.

In the present invention, the steam input switching valve is installed at a connection branch point between the steam supply line for providing steam to the heater and the steam discharge line for discharging the cooled steam from the heater, The steam supply path is selectively provided to the heater.

The present invention can automatically perform the operation of the oil cleaning equipment by detecting the residual amount of fuel stored in the service tank, and through this, it is possible to implement autofilling to secure the appropriate level of fuel in the service tank at all times. It provides the effect of preventing breakage in advance.

The present invention can perform automatic switching of the supply path provided to the purifier according to the type of fuel in the purification of oil, so it is possible to pursue economic feasibility through sharing of a single oil cleaning facility for heterogeneous fuels. In addition, through the sharing of oil clean facilities, the mixing of heterogeneous fuels is basically excluded to provide the effect of performing normal equipment operation.

The present invention can implement the function of automatic opening and closing control for the corresponding supply path when switching the purification path between heterogeneous fuels using a single oil cleaning equipment to prevent fuel mixing due to human error, thereby It provides an effect that can more actively solve the problem of lowering operation efficiency and increasing various harmful components contained in exhaust gas.

According to the present invention, the amount of fuel supplied from the tank to the purifier can be adjusted according to necessity during the purification of the oil, thereby providing a variable control function for the clean efficiency of the fuel by the purifier.

The present invention can block the supply of unnecessary heat source provided to the heater, which is one of the equipment of the oil cleaning equipment when using diesel as oil in the ship provides an effect that enables more economical energy utilization.

The present invention detects the precipitated water in the heavy oil settle tank and can automatically perform the external discharge of the precipitated water through it can implement the auto drain function.

1 is a view showing the configuration of a ship whey device according to the present invention.
FIG. 2 is a view showing a flow path of a fuel that is made during a purification process of heavy oil in the whey device shown in FIG. 1.
FIG. 3 is a view illustrating a flow path of fuel that is generated when the clean efficiency is improved during the purification of heavy oil in the whey device shown in FIG. 1.
4 is a view illustrating a flow path of heavy oil that occurs when a purifier is damaged during a purification process of heavy oil in the whey clean apparatus shown in FIG. 1.
FIG. 5 is a view illustrating a fuel flow path of a diesel oil purifying process in the whey clean apparatus shown in FIG. 1. FIG.
FIG. 6 is a view illustrating a fuel flow path of an improved clean efficiency during a purification process of diesel fuel in the whey cleaning apparatus shown in FIG. 1.
FIG. 7 is a view illustrating a flow path of diesel oil that occurs when the purifier is damaged during the purification of the diesel oil in the whey clean apparatus of FIG. 1.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying exemplary drawings.

Referring to FIG. 1, marine fuel (FO) can be largely divided into heavy oil (HFO) and light oil (MDO), and these multiple types of fuel are stored separately in separate tanks, respectively. To this end, the tank of the vessel is connected to the heavy oil bunkering line for the storage of heavy oil (HFO STORAGE TANK; 10), connected to the heavy oil storage tank (10) and sedimented by separating water from the stored heavy oil for a period of time HFO SETTLE TANK (12), a heavy oil service tank (HFO SERVICE TANK) is connected to the heavy oil settle tank 12 and stores the purified heavy oil through the oil clean facility and provides the stored heavy oil to the engine or boiler; 14), a diesel storage tank (MDO STORAGE TANK) (16) connected to the diesel bunkering line for the storage of diesel oil, and the diesel oil connected to the diesel storage tank (16) and purified through the oil cleaning facility and stored diesel oil It includes a diesel service tank (MDO SERVICE TANK) (18) for providing an engine or a boiler.

In this case, the heavy oil storage tank 10 is connected to the heavy oil set tank 12 via a heavy oil supply line (HFO-SUP), the heavy oil supply line (HFO-SUP) is the heavy oil storage tank (10) A transfer pump 20 is provided to supply heavy oil stored therein to the heavy oil settling tank 12, and the heavy oil settling tank 12 is connected to the feed pump 22 through a heavy oil input line HFO-IN. On the other hand, the diesel storage tank 16 is connected to the feed pump 22 via a diesel input line (MDO-IN).

Here, the transfer of the heavy oil from the heavy oil storage tank 10 to the heavy oil settle tank 12 is implemented by the operation of the transfer pump 20, wherein the operation control for the transfer pump 20 is It is determined according to the residual amount of fuel stored in the heavy oil settling tank 12. That is, the operation of the transfer pump 20 is controlled by on / off control made in accordance with the residual amount information detected from the upper and lower limit water level sensors 24a and 24b installed in the heavy oil settle tank 12.

Fuel input switching valve (V-1) is a three-way valve (3-way valve), the feed pump 22 at the connection point between the heavy oil input line (HFO-IN) and the diesel oil input line (MDO-IN) It is installed to be able to communicate with the pump input line (P-IN) connected to the input terminal of. That is, the fuel input switching valve (V-1) is installed in the fuel supply path located between the feed pump 22 from the heavy oil set tank 12 and the light oil storage tank 16, respectively, to provide a plurality of types of fuel. Serves to provide only a single fuel to the feed pump 22 under control.

To this end, the feed pump 22 is connected to the purifier 26 via a pump output line (P-OUT), the fuel of the fuel supply path between the feed pump 22 and the purifier 26 A heater 28 for preheating is provided to improve the cleaning efficiency for the heavy oil corresponding to the low oil supply. In this case, steam is used as a heat source provided to the heater 28.

In addition, the pump output line (P-OUT) connected from the feed pump 22 is connected to the heater 28 via a heater input line (H-IN), the heater is connected from the heater 28 The output line H-OUT is connected to the purifier 26 via the purifier input line Pu-IN, and the first bypass line BP-1 is connected to the pump output line P-OUT. Bypass without passing through the heater 28 is directly connected to the purifier input line (Pu-IN).

Path control switching valve (V-2) is a three-way valve (3-way valve), the pump output line (P-OUT), the heater input line (H-IN) and the first bypass line (BP-1) A flow path of fuel to the purifier 26 via the heater 28 via a switch of a port, which is installed at a connection branch point between the ports and formed according to the type of fuel provided through the feed pump 22. Or an adjustment function that can be directed directly to the purifier 26 without passing through the heater 28. In this case, the switching of the port made in the path control switching valve V-2 results from the control according to the type of fuel.

The drain control switching valve is installed in a supply path which is separately branched from the fuel supply path between the feed pump 22 and the purifier 26, so that a part of the fuel provided from the feed pump 22 to the purifier 26 is supplied. By draining the heavy oil set tank 12 or the diesel fuel storage tank 16, respectively, to control the supply amount of the fuel supplied to the purifier 26 to properly clean the efficiency of the fuel made in the purifier 26. Function to control. That is, the drain control switching valve is controlled by controlling the supply amount of fuel through the drain path to communicate with each other from the pump output line (P-OUT) to the heavy oil set tank 12 or the diesel storage tank 16 A function of adjusting the amount of fuel supplied to the purifier 26 is performed. In other words, since the rated processing capacity of the purifier 26 is determined, as the supply amount of the fuel supplied to the purifier 26 is processed to be smaller, the cleaning efficiency can be improved, and through the drain control switching valve as necessary. By controlling the amount of fuel to be drained to the heavy oil set tank 12 or the diesel storage tank 16, respectively, the amount of fuel supplied to the purifier 26 is controlled dependently, whereby the clean efficiency of the purifier 26 is improved. It can be adjusted.

To this end, the pump output line (P-OUT) is connected in communication with the heavy oil set tank 12 via a heavy oil drain line (HFO-DRA), and separately via a diesel drain line (MDO-DRA) It is also connected to the diesel storage tank 16 in a communicable manner. In addition, a heavy oil drain control valve (HFO-D) is provided at the connection point between the pump output line (P-OUT) and the heavy oil drain line (HFO-DRA), the amount of fuel provided to the purifier (26) By controlling the cleaning efficiency of the fuel by the purifier 26 can be adjusted. In addition, a diesel drain control valve (MDO-D) is installed at a connection point between the pump output line (P-OUT) and the diesel drain line (MDO-DRA) to provide fuel to the purifier (26). By controlling the amount, it is possible to adjust the clean efficiency of the fuel by the purifier 26.

The bypass control switching valve (VA) is a three-way valve, which is installed in the fuel supply path between the feed pump 22 and the purifier 26, and when the abnormality of the purifier 26 occurs, The flow path performs an adjustment function to direct the drain path via the bypass path not passing through the purifier 26. That is, the bypass control switching valve VA is installed in the purifier input line Pu-IN connected to the heater output line H-OUT in the flow path from the heater 28 to the purifier 26. do.

To this end, a bypass path is formed in the purifier input line (Pu-IN) so as to be branched therefrom so as to separately communicate with the drain path, and the bypass path is branch-connected with the heavy oil drain line (HFO-DRA). The second bypass line BP-2 and the third bypass line BP-3 which are connected to the diesel drain line MDO-DRA in a branched manner are communicated with each other. That is, the second bypass line BP-2 is branched from the purifier input line Pu-IN and connected to the heavy oil settling tank 12 via the heavy oil drain line HFO-DRA to heavy oil. Set a drain path for the drain path, and the third bypass line BP-3 is branched from the purifier input line Pu-IN to pass through the diesel drain line MDO-DRA to pass through the diesel storage tank 16. It is connected to set the drain path for the diesel.

In addition, a bypass path control switching valve (V-) is connected to a connection branch point communicating with the second bypass line (BP-2) or the third bypass line (BP-3), respectively. 3) is installed, the bypass path control switching valve (V-3) performs a function to adjust the drain path according to the type of fuel in the bypass path of the fuel not passing through the purifier (26). That is, the purifier input line Pu-IN may be connected to the purifier 26 or the bypass path control switching valve V-3 through port switching of the bypass control switching valve VA. At this time, the bypass path is connected to the heavy oil drain line (HFO-DRA) through the second bypass line (BP-2) through the switching of the port made in the bypass path control switching valve (V-3), It may be connected to the diesel drain line MDO-DRA through the third bypass line BP-3. In this case, the switching of the port made in the bypass path control switching valve V-3 results from the control according to the type of fuel.

The fuel output switching valve V-4 performs an adjustment function of setting the flow path of the fuel to the corresponding tank according to the type of the fuel purified through the purifier 26. That is, the fuel output switching valve V-4 is installed in the storage path of the fuel from the purifier 26 to the heavy oil service tank 14 or the diesel fuel service tank 18. More specifically, the fuel output switching valve (V-4) is a heavy oil storage line (HFO-STO) branched from the purifier output line (Pu-OUT) to the heavy oil service tank 14, and the purifier output line (Pu) The purifier 26 is installed at a branch connection point between the diesel storage line (MDO-STO) branched from the OUT to the diesel service tank 18 through switching of ports resulting from control according to the type of fuel. It serves to supply the fuel purified by the heavy oil service tank 14 or the light oil service tank 18 according to the type.

The steam input switching valve V-5 functions to adjust a flow path of steam supplied to the heater 28 according to the type of fuel provided from the feed pump 22. To this end, the steam input switching valve (V-5) is the steam supply line (S-IN) for providing steam to the heater 28 and the steam discharge line (S) for discharging the cooled steam from the heater (28) -OUT) is installed at the connection branch point. That is, when heavy oil is supplied through the pump output line (P-OUT), the heavy oil is supplied to the inside of the heater 28 through the switching of the port by the path control switching valve (V-2), the heat exchange is Accompanying, at this time, the steam input switching valve (V-5) is supplied to the inside of the heater 28 by supplying steam provided through the steam supply line (S-IN) through the switching of the port under the control of heavy oil It provides a heat source that allows heating of. On the contrary, if diesel fuel is supplied through the first bypass line BP-1 by bypassing the heater 28 through switching of the port by the path control switching valve V-2, Since the heating is unnecessary, the steam input switching valve V-5 does not supply the steam provided through the steam supply line S-IN to the inside of the heater 28 and switches the steam through the port switching. By direct bypass to the discharge line (S-OUT) it is possible to limit the consumption of unnecessary heat sources.

On the other hand, when the type of fuel required in the heavy oil or light oil for operation of the ship engine or boiler is determined, the fuel input switching valve (V-1), the path control switching valve (V-2), the bypass path control switching valve (V-3), the control of the port switching for the fuel output switching valve (V-4), the steam input switching valve (V-5) and the like by the control panel (Control Panel; C / P) It is sequentially made according to the situation, and thus, unwanted mixing is not performed in various supply paths that are commonly used as a transport path for heterogeneous fuels among the fuel supply paths. For example, when it is necessary to purify light oil in the process of heating and purifying heavy oil in the fuel supply path, heavy oil and light oil are not mixed in all the supply paths through the control for sequential port switching of the various switching valves. Will not. In other words, if switching to light oil is required during the purification process of heavy oil, it is unnecessary to control the switching of ports for each switching valve sequentially according to the time point when heavy oil is completely removed from all supply paths of the fuel supply path. The mixing of the fuel can be prevented.

In the purification of the heavy oil or light oil as described above, a series of purification processes consisting of the heavy oil service tank 14 through the heater 28 and the purifier 26 sequentially from the heavy oil set tank 12. And switching between a series of purification processes consisting of the diesel service tank 18 from the diesel storage tank 16 via the purifier 26 is performed by the heavy oil service tank 14 and the diesel service tank 18. It is made based on the information on the residual amount detected from the water level sensor (30, 32) installed in each, which is implemented by the control panel unit (C / P).

That is, the control panel unit C / P may be configured such that the transfer pump 20, the control panel unit C / P may be configured according to the residual amount information of the fuel detected by the upper / lower limit level sensors 24a and 24b and the other level sensors 30 and 32. The operations of the feed pump 22 and the drive motor 26a of the purifier 26 are respectively controlled individually. In particular, the control panel (C / P) is the fuel input switching valve (V-1), the path control switching valve (V-2), the bypass path control switching valve (V-3), depending on the type of fuel, By individually controlling the switching operations of the ports for the fuel output switching valve V-4 and the steam input switching valve V-5, a plurality of types of fuels are independently controlled using a single whey device. It can be purified.

In addition, the heavy oil set tank 12 is provided with an auto drain valve 34 for the external discharge of the water precipitated therein, the opening and closing of the auto drain valve 34 is the control panel portion (C / P) ) Under the control of In this case, the detection of the presence or the degree of precipitation of water in the heavy oil set tank 12 is made by an ultrasonic sensor (not shown) that outputs the difference in refractive index in the water and oil, respectively, and the information at this time is the control panel It is provided as a negative C / P. Accordingly, the water precipitated in the heavy oil settling tank 12 may be discharged to the outside by the operation of the auto drain valve 34 which is controlled to be opened and closed from the detection by the ultrasonic sensor. Not only can it be further improved, but it also reduces the burden on the operator due to manual opening and closing of the drain valve.

Hereinafter, the fuel purification process performed by the whey device of the present invention will be described in more detail.

Referring to Figure 2, the purification process of the heavy oil in the whey device of the present invention is carried out through the flow path as follows under the control of the control panel (C / P). At this time, the thick dotted line shown in the drawing represents the flow path.

The heavy oil stored in the heavy oil storage tank 10 through the bunkering line of heavy oil is supplied to the heavy oil settle tank 12 through the heavy oil supply line (HFO-SUP) through the operation of the transfer pump 20. At this time, the residual amount information of the fuel detected from the upper and lower limit water level sensors 24a and 24b installed in the heavy oil settling tank 12 is based on on / off control of the operation of the transfer pump 20.

The heavy oil stored in the heavy oil settling tank 12 is provided to the purifier 26 through the heavy oil input line (HFO-IN) according to the operation of the feed pump 22, in the process of the following switching valve The port switching is performed sequentially according to the control. That is, traffic between the heavy oil input line (HFO-IN) and the pump input line (P-IN) is accompanied from the switching of the port by the fuel input switching valve (V-1), the path control switching valve ( From the switching of the port by V-2), the traffic between the pump output line (P-OUT) and the heater input line (H-IN) is involved, and from the switching of the port by the bypass control switching valve (VA) Traffic between the heater output line (H-OUT) and the purifier input line (Pu-IN) is involved, while the purifier output line (Pu-) from switching of the port by the fuel output switching valve (V-4). Traffic between OUT) and the heavy oil storage line (HFO-STO). At this time, the steam provided through the steam supply line (S-IN) from the switching of the port by the steam input switching valve (V-5) is provided to the heater 28 to provide a heat source required for heating heavy oil. This is done.

Therefore, the heavy oil stored in the heavy oil settling tank 12 passes through the heater 28 and the purifier 26 sequentially according to the driving of the feed pump 22 and the heavy oil in the state in which impurities contained in the fuel are removed. The purified heavy oil, which is provided to the service tank 14 and stored in the heavy oil service tank 14, can be supplied to an engine or a boiler if necessary.

Referring to FIG. 3, in the whey cleaning apparatus of the present invention, a process for improving clean efficiency of the purification process of heavy oil is implemented as follows under the control of the control panel unit C / P. At this time, the thick dotted line shown in the drawing represents the flow path.

In the flow path of FIG. 2, some of the heavy oil provided from the feed pump 22 to the path control switching valve V-2 through the pump output line P-OUT is connected to the pump output line P-OUT. The heavy oil drain control valve (HFO) installed in the heavy oil drain line (HFO-DRA) is returned to the heavy oil settling tank (12) through the heavy oil drain line (HFO-DRA). -D) in accordance with the opening. In particular, the adjustment of the opening and closing degree with respect to the heavy oil drain control valve (HFO-D) can control the amount of heavy oil drained to the heavy oil settling tank 12, so that the purifier (26) through the heater (28) The clean efficiency of heavy oil supplied to) can be adjusted to the desired level.

Referring to FIG. 4, the flow path of heavy oil, which occurs when an abnormal situation such as damage or leakage of the purifier occurs during the purification process of heavy oil in the whey cleaning apparatus of the present invention, is described in accordance with the control of the control panel unit C / P. Is implemented as: At this time, the thick dotted line shown in the drawing represents the flow path.

The flow path of the heavy oil supplied to the purifier 26 through the heater 28 in the flow path of FIG. 2 is different from the normal state, and the purifier 26 is changed from the port switching by the bypass control switching valve VA. It is set as a path to bypass. At this time, the heavy oil flowing through the bypass path is returned to the heavy oil settle tank 12 via the second bypass line (BP-2) from the switch of the port by the bypass path control switching valve (V-3). This is possible because the second bypass line BP-2 is branched to the heavy oil drain line HFO-DRA.

As such, when an abnormal situation such as damage or leakage of the purifier 26 occurs, the flow path of the heavy oil supplied to the purifier 26 through the heater 28 is not set to the purifier 26 but bypasses it. Through the second bypass line (BP-2) can be directly returned to the heavy oil settle tank 12, it is possible to fundamentally block the occurrence of secondary problems.

Referring to FIG. 5, the process of purifying light oil in the whey device of the present invention is performed through the following flow path under the control of the control panel unit C / P. At this time, the thick dotted line shown in the drawing represents the flow path.

Diesel oil stored in the diesel storage tank 16 is provided to the purifier 26 through the diesel input line (MDO-IN) in accordance with the operation of the feed pump 22, in the process of the following switching valve The port switching is performed sequentially according to the control. That is, traffic between the diesel fuel input line (MDO-IN) and the pump input line (P-IN) is accompanied by switching of the port by the fuel input switching valve (V-1), the path control switching valve ( V-2) involves traffic bypassing the heater 28 between the pump output line P-OUT and the first bypass line BP-1 from the switching of the port. Traffic between the first bypass line BP-1 and the purifier input line Pu-IN is accompanied from the switching of the port by the valve VA, while the fuel output switching valve V-4 is connected. Traffic between the purifier output line (Pu-OUT) and the diesel storage line (MDO-STO) is accompanied by switching of the port. At this time, the steam provided through the steam supply line (S-IN) from the switching of the port by the steam input switching valve (V-5) is not provided to the heater 28 and the steam discharge line (S-OUT) Through other facilities, it is possible to actively prevent unnecessary consumption of heat sources.

Therefore, the diesel fuel stored in the diesel fuel storage tank 16 passes through the purifier 26 without passing through the heater 28 according to the driving of the feed pump 22 while the impurities contained in the fuel are removed. The purified diesel oil that is provided to the diesel service tank 18 and stored in the diesel service tank 18 can be supplied to an engine or a boiler if necessary.

Referring to FIG. 6, in the whey cleaning apparatus of the present invention, a process of improving clean efficiency of the light oil purification process is implemented as follows under the control of the control panel unit C / P. At this time, the thick dotted line shown in the drawing represents the flow path.

In the flow path of FIG. 5, some of the diesel oil provided from the feed pump 22 to the path control switching valve V-2 through the pump output line P-OUT is connected to the pump output line P-OUT. Of the drain paths connected to the branch is connected to the diesel storage tank 16 through the diesel drain line (MDO-DRA), which is the diesel drain control valve (MDO) installed in the diesel drain line (MDO-DRA) -D) in accordance with the opening. In particular, the adjustment of the opening and closing degree to the diesel oil drain control valve (MDO-D) is able to control the amount of diesel oil drained to the diesel oil storage tank 16, so that the diesel oil supplied directly to the purifier (26) The clean efficiency can be adjusted to a desired level.

Referring to FIG. 7, a flow path of diesel oil generated at the time of occurrence of an abnormal situation such as damage or leakage of the purifier during the purification process of diesel oil in the whey cleaning apparatus of the present invention is as follows according to the control of the control panel unit C / P. Is implemented as: At this time, the thick dotted line shown in the drawing represents the flow path.

In the flow path of FIG. 5, the flow path of the diesel fuel supplied directly to the purifier 26 is set as a path bypassing the purifier 26 from switching of the port by the bypass control switching valve VA, unlike a normal state. do. At this time, the diesel fuel flowing through the bypass path is returned to the diesel storage tank (16) via the third bypass line (BP-3) from the switch of the port by the bypass path control switching valve (V-3). This is possible because the third bypass line BP-3 is branched to the diesel drain line MDO-DRA.

Thus, when an abnormal situation such as damage or leakage of the purifier 26 occurs, the flow path of the diesel fuel supplied directly to the purifier 26 is not set to the purifier 26 but bypasses the third bypass line ( Since it can be returned directly to the diesel storage tank 16 through BP-3), it is possible to fundamentally prevent the occurrence of secondary problems.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the particular details of the embodiments set forth herein. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

10-Low Oil Storage Tank 12-Low Oil Settle Tank
14-heavy fuel service tanks 16- diesel storage tanks
18- Diesel Service Tank 20- Transfer Pump
22-Feed Pump 24a, 24b High / Low Water Level Sensor
26-purifier 28-heater
30-level sensor 32-level sensor
34-Auto Drain Valve

Claims (13)

Whey cleaning device for purification of oil provided in the ship,
A tank for independently storing a plurality of types of fuel;
A feed pump 22 for supplying fuel stored in the tank;
A fuel input switching valve (V-1) installed in a supply path of the fuel located between the tank and the feed pump 22 to selectively provide only a single fuel of a plurality of types of fuel to the feed pump 22;
A purifier (26) for purifying fuel supplied from the feed pump (22);
A heater (28) installed in the supply path of fuel between the feed pump (22) and the purifier (26) to selectively preheat the fuel;
It is installed in the fuel supply path between the feed pump 22 and the purifier 26 and passes through the heater 28 or bypasses the heater 28 according to the type of fuel to the purifier 26. Path control switching valve (V-2) for adjusting the flow path of the;
A fuel output switching valve (V-4) for controlling a flow path of the fuel to a corresponding tank among the tanks according to the type of fuel purified through the purifier 26;
A water level detection sensor for detecting a residual amount of fuel stored in the tank; And
A control panel unit C for determining the type of fuel based on the residual amount information of the fuel detected by the water level detection sensor and controlling the operation of the feed pump 22, the purifier 26, and the plurality of switching valves. / P) whey device of a ship characterized in that it comprises. The method according to claim 1,
The control panel part C / P sequentially controls the operation of the plurality of switching valves according to the type of fuel provided to the feed pump 22 to prevent mixing between different fuels in the fuel supply path. Whey device of the ship characterized in that. The method according to claim 1,
The tank comprises a heavy oil storage tank 10 for storing fuel before purification, a heavy oil settling tank 12, a diesel fuel storage tank 16, and a heavy oil service tank 14 for storing fuel after purification, a diesel service tank ( 18) Whey cleaning apparatus of a ship comprising a). The method according to claim 3,
The heavy oil settling tank 12 includes an ultrasonic sensor for detecting precipitated water and an auto drain valve 34 for automatically controlling discharge to the outside through the detection of precipitated water by the ultrasonic sensor. Whey cleaning apparatus for ships. The method according to claim 3,
The water level detection sensor is installed in the high / low limit water level sensors 24a and 24b installed in the heavy oil settling tank 12, the water level sensor 30 installed in the heavy oil service tank 14, and the diesel service tank 18. Whey device of a ship, characterized in that consisting of a water level sensor (32). The method according to claim 5,
Further comprising a transfer pump 20 for supplying the fuel stored in the heavy oil storage tank 10 to the heavy oil settle tank 12, the control panel portion (C / P) is the upper and lower limit water level sensor (24a, Whey cleaning apparatus for a ship, characterized in that for controlling the drive of the transfer pump (20) in accordance with the residual amount of fuel in the heavy oil settling tank (12) detected from. The method according to claim 3,
The supply amount of the drain path which is installed in the supply path of the fuel between the feed pump 22 and the purifier 26 and returns to the tank without being purified in the fuel provided from the feed pump 22 to the purifier 26. Whey cleaning apparatus of the ship further comprises a drain control switching valve for controlling the clean efficiency of the fuel by the purifier (26) by adjusting the. The method of claim 7,
The drain path is connected between the heavy oil drain line (HFO-DRA) and the feed pump 22 and the diesel storage tank 16 to enable communication between the feed pump 22 and the heavy oil settling tank 12. Whey cleaning apparatus of a ship, characterized in that consisting of a diesel oil drain line (MDO-DRA) connected to enable traffic. The method according to claim 8,
The drain control switching valve is a heavy oil drain control valve (HFO-D) installed in the heavy oil drain line (HFO-DRA), and a diesel oil drain control valve (MDO-D) installed in the diesel oil drain line (MDO-DRA). Whey device of the ship, characterized in that made. The method according to claim 1,
Bypass control is installed in the supply path of the fuel between the feed pump 22 and the purifier 26 to adjust the flow path of the fuel to bypass the purifier 26 in the event of an abnormality of the purifier 26. Whey cleaning apparatus of the ship further comprising a switching valve (VA). The method of claim 10,
Further comprising a bypass path control switching valve (V-3) is installed in the path bypassing the purifier 26 through the bypass control switching valve (VA) to adjust the bypass path depending on the type of fuel. Whey device of the ship characterized in that. The method according to claim 1,
The whey of the ship further comprises a steam input switching valve (V-5) for adjusting the flow path of the steam supplied to the heater 28 according to the type of fuel provided to the feed pump 22 Device. The method of claim 12,
The steam input switching valve (V-5) is a steam supply line (S-IN) for providing steam to the heater 28, and a steam discharge line (S-OUT) for discharging the cooled steam from the heater (28) And a supply path of the heated steam provided from a heat source, selectively provided to the heater (28) at a connection branch point between the wheys.

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