KR20100073666A - Apparatus for supplying heavy fuel oil for ship - Google Patents

Abstract

PURPOSE: A device for supplying heavy oil for a ship is provided to improve stability by operating an auxiliary conveying pump and a steam heating heater when a main tank is in an abnormal state. CONSTITUTION: A device for supplying heavy oil for a ship comprises a main tank(1), a storage tank(2), a suction side returning path(3), an exhaust side returning path(4), a suction side fluid feeding path(7), an exhaust side fluid feeding path(9), a second three-directional control valve(8), a first three-directional control valve(5), and a main conveying pump(6). The main tank stores heavy oil. The storage tank stores pre-heated heavy oil. The suction side returning path is connected to the suction side fluid feeding path through the second three-directional control valve. One side of the exhaust side returning path is separated from the exhaust side fluid feeding pats by the second three-directional control valve. The main conveying pump is installed between the second three-directional control valve and the first three-directional control valve.

Description

Apparatus for supplying heavy fuel oil for ship}

The present invention relates to a heavy oil supply device for ships, and more particularly, to reduce the viscosity of the heavy oil (bunker oil) used as a fuel of the ship to facilitate the supply of heavy oil in the preheated state stored in the tank used for The present invention relates to a heavy oil supply device for preheating and supplying the unheated heavy oil through a heat transfer phenomenon by returning to a stored storage tank.

In general, heavy fuel oil used as fuel for ships, such as bunker oil, is cheap, but it is not sticky and viscous, so it is impossible to transport it. It is used after heating above temperature.

Specifically, the ship heavy oil supply device is composed of a preheating device for preheating the storage tank and a supply pump for supplying the preheated heavy oil to the use tank, the supply flow path and preheating connecting the use tank and the storage tank and the supply pump As the pipelines for supplying and returning the steam are separately provided, the structure becomes somewhat complicated.

Therefore, the conventional heavy oil supply device as described above, the heat generated in the cargo and the hull member due to the heat generated from the preheater installed in each tank, accelerates the corrosion of the iron plate, and the boiler installation position of the preheating steam generator Long steam pipes from the engine room area to each storage tank are connected to each other and the damage rate is high, and when the connected steam pipe is broken, repair is difficult.

In addition, the conventional heavy oil supply device has a problem in that the installation process is not easy and complicated, and the cost required for the installation process is not only high but also easy to maintain.

In addition, since the preheating device of the storage tank is installed in the tank, it is impossible to determine whether there is a failure.

An object of the present invention for solving the above problems is not provided with a preheating device of the heavy oil storage tank, but only with a preheating device in the use tank to return the preheated heavy oil to each storage tank, thereby preheating the heavy oil stored in the storage tank It is to provide a heavy oil supply device for ships to smoothly supply to the use tank.

Another object of the present invention is to return the heavy oil in the preheated state of the use tank to each storage tank using the main pump, and supply the heavy oil of the storage tank preheated by the supplied heavy oil back to the use tank, When the heavy oil is smoothly supplied to the used tank and the preheating of the storage tank is not smoothly performed, the auxiliary fuel pump and the steam heating type heater are operated to provide a heavy oil supply device for ships with improved safety of the system.

In addition, another object of the present invention is to simplify the configuration of the heavy oil supply device for smoothly supplying the heavy oil used as fuel of the ship to the maximum ease of installation work, it is possible to reduce the cost of the installation work In addition, the present invention provides a heavy oil supply device for ships that can be more easily maintained.

The present invention to achieve the object as described above and to perform the problem for eliminating the drawbacks of the prior art and the use tank for storing the heavy oil of the fuel preheating state of the ship;

One or more storage tanks storing unheated heavy oil;

A suction side return passage which transfers the heavy oil of the preheated use tank to the storage tank and is connected to the suction side supply passage by a first three-way control valve;

A discharge side return passage, one side of which is branched from the discharge side supply passage by a second three-way control valve and the other side connected to the suction side supply passage;

A suction flow path side flow path which transfers the heat exchange heavy oil supplied from the use tank or the heat exchanged heavy oil discharged from the storage tank;

A discharge side supply passage for transferring the heavy oil of the storage tank that is heat-exchanged and preheated to the use tank;

A second three-way control valve for changing and controlling the flow direction of the discharge side return flow path and the discharge side supply flow path branched therefrom;

A first three-way control valve for changing and controlling the flow direction of the suction side return passage connected to the suction side supply passage;

It is composed of a main feed pump installed between the second three-way control valve and the first three-way control valve to provide a conveying power of heavy oil to preheat the heavy oil of the preheated use tank mixed with the heavy oil of the unpreheated storage tank. It is achieved by providing a heavy oil supply device for ships, characterized in that configured to.

In another aspect, the present invention provides an auxiliary feed pump for providing a feed force of the heavy oil received from the use tank to further increase the temperature of the heavy oil in the use tank to supply to the storage tank; An auxiliary heater for heating the heavy oil passing through the auxiliary feed pump; It characterized in that it further comprises an auxiliary flow path for connecting the heavy oil past the auxiliary heater to the discharge side return flow path.

The present invention has the advantage that the installation is simple by configuring the device for use by heat exchange using the heat temperature of the use tank without the need for a separate device configuration for preheating the storage tank.

In addition, if the tank is not preheated smoothly, the auxiliary transfer pump and the steam heating type heater are operated to increase the safety of the system.

In addition, there is no fear of thermal damage to the cargo and hull members due to the heat generated from the preheater installed in each tank, as the conventional heavy oil supply device configuration, and less worry of corrosion of the iron plate, and easy installation process As long as the conventional steam pipe from the engine room area of the boiler installation position, which is a preheating steam generator, to each storage tank, there is no need for connection, so there is no fear of damage, and the equipment cost is low, and the repair is easy.

In addition, since the preheating device of the storage tank is not installed in the tank as in the prior art, it is a useful invention having the advantage of easily determining whether there is a failure, and the invention is expected to be greatly utilized in the industry.

Hereinafter, the configuration and the operation of the embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a device configuration according to an embodiment of the present invention, as shown in the present invention is preheated by a preheater (not shown) to lower the viscosity of heavy oil (bunker oil) for use as a fuel of the ship The use tank 1 of is shown.

Since the use tank 1 is preheated by a preheating device in order to lower the viscosity as in the conventional general use tank, it has a heat temperature, thereby providing a basic heat temperature of the heavy oil supply device of the present invention. This heat temperature lowers the viscosity of the stored heavy oil by heat exchange by mixing with the heavy oil in the at least one storage tank (2) storing the high viscosity heavy oil.

Detailed control flow of the flow path related to the return and supply between the use tank and the storage tank for heat exchange will be described.

First, the heavy oil of the preheated used tank 1 is returned to each storage tank through the suction side return path 3 and the discharge side return path 4. To this end, the heavy oil discharged from the use tank (1) flows through the suction side return passage (3), and then the flow path of the first three-way control valve (5) opens toward the main feed pump (6), and the suction supply side passage (7). ) Is supplied to the second three-way control valve (8) by the pumping force of the main feed pump. At this time, the second three-way control valve 8 blocks the discharge-side supply passage 9 and opens the discharge-side return passage 4 so that the preheated heavy oil is sucked through the suction-side supply passage 7 through the discharge-side return passage 4. By opening the valve 10 between the side supply passage 7 and the storage tank 2, the pre-heated heavy oil is supplied to the at least one storage tank 2. Due to this, the heavy oil stored in the storage tank is mixed with the supplied preheated heavy oil, and the viscosity of the heavy oil increases due to heat exchange, and thus the viscosity is lowered. To be used.

When the mixing tank is filled with unheated heavy oil in each storage tank, the heat exchange efficiency is inferior. Preferably, if the storage space remains to some extent, the heat exchange time is faster and efficient.

In addition, when the normal preheated heavy oil is supplied from the used tank to the storage tank, the operation of the auxiliary transfer pump 11 and the auxiliary heater 12 shown in the drawing is stopped to prevent the supply of heavy oil to another path.

In addition, the discharge side return passage 4 is configured to be connected to the suction side supply passage 7 at the rear end of the first three-way control valve (5).

Similarly, the route of delivery of heavy oil to the spent tanks in the preheated storage tanks is examined.

The heavy oil of the storage tank preheated by the heavy oil supplied from the used tank is supplied to the intake side supply passage 7 via the valve 10 in each storage tank, and the supplied heavy oil is supplied to the first three-way control valve 5. Valve direction is opened toward the main feed pump (6), the discharge side return flow path (4) is blocked, flows through the feed pump (6) to the second three-way control valve (8), and again the second third In the directional control valve 8, the passage is supplied to the use tank 1 as the discharge side supply passage 9 is opened and the discharge side displacement passage 4 is blocked. As a result, the supplied heavy oil is preheated, so the viscosity is low, so there is no problem to use the fuel of the ship.

In addition, in the present invention, when the temperature of the used tank does not provide sufficient heat temperature to use the heavy oil stored in the storage tank as fuel of the ship, additional methods are supplementally provided.

That is, in such a case, the first and second three-way control valves are locked so that they are not supplied through the suction side return passage 3 from the use tank 1, the operation of the main feed pump is stopped, and then the auxiliary feed pump 11 Pumped preheated heavy oil in the used tank (1), the pumped preheated heavy oil can be heat exchanged viscous enough to use the fuel oil stored in the storage tank as fuel in the ship's engine while passing through the auxiliary heater (12) The temperature is raised to that temperature.

The sufficiently heated heavy oil passes through the auxiliary flow passage 13 and passes through the valve 10 through the discharge side return flow passage 4 connected with the auxiliary flow passage and the suction side supply flow passage 7 connected with the discharge side return flow passage, and then the storage tank 2. Heat is transferred to the heavy oil stored in the heat exchanger.

The supply path of the heavy oil used tank heat exchanged due to the heavy oil supplied from the auxiliary feed pump and the auxiliary heater is lowered in viscosity and the control of the supply path from the storage tank to the used tank and the first and second three-way control valves. Since it is the same, a detailed description is omitted.

The auxiliary heater preferably improves heat exchange efficiency by using a steam heating auxiliary heater.

The present invention is configured as described above the heat transfer of the heavy oil of the preheated used tank by the preheater (not shown) to each storage tank through the suction side return flow path and the discharge side return flow path to heat transfer the heavy oil of the unpreheated state of the storage tank. After preheating through the supply side through the suction side supply passage and the discharge side supply passage back to the use tank to smoothly supply the heavy oil of the storage tank to the use tank.

In addition, when the storage tank is not preheated smoothly, the auxiliary feed pump and the steam heating auxiliary heater are operated to provide safety of the system.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

1 is a block diagram of an apparatus according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

(1): used tank (2): storage tank

(3): suction side return path (4): discharge side return path

(5): first three-way control valve (6): main feed pump

(7): suction supply side flow path (8): second three-way control valve

(9): discharge side supply passage (10): valve

(11): auxiliary transfer pump (12): auxiliary heater

(13): auxiliary euro

Claims (2)

A use tank 1 storing heavy oil in a preheated state for fuel of the ship; One or more storage tanks 2 storing unheated heavy oil; A suction side return passage 3 which transfers the heavy oil of the preheated use tank 1 to the storage tank 2 and is connected to the suction side supply passage 7 by a first three-way control valve 5; A discharge side return passage 4, one side of which is branched from the discharge side supply passage 9 by a second three-way control valve 8 and the other side connected to the suction side supply passage 7; A suction flow path side flow path 7 which transfers the heat exchanged heavy oil discharged from the storage tank or the heat exchange heavy oil supplied from the use tank; A discharge side supply passage 9 which transfers the heavy oil of the storage tank 2 preheated by heat exchange to the use tank 1; A second three-way control valve (8) for changing and controlling the flow direction of the discharge side return path (4) and the discharge side supply path (9) branched therefrom; A first three-way control valve (5) for changing and controlling the flow direction of the suction side return path (3) connected to the suction side supply path (7); It is installed between the second three-way control valve (8) and the first three-way control valve (5) is composed of a main feed pump (6) to provide a conveying power of heavy oil is not preheated The heavy oil supply device for ships, characterized in that configured to preheat mixed with the heavy oil of the storage tank. The method according to claim 1, An auxiliary transfer pump 11 providing a transfer force of the heavy oil supplied from the use tank 1 to increase the temperature of the heavy oil in the use tank to supply the storage tank; An auxiliary heater 12 for heating the heavy oil passing through the auxiliary transfer pump; A heavy oil supply device for a ship, characterized in that it further comprises an auxiliary flow path (13) for connecting the heavy oil passing through the auxiliary heater to the discharge side return flow path (4).

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