KR20020017631A - running water separation apparatus for nature circulation type - Google Patents

Abstract

PURPOSE: A natural circulation type oil/water separator is provided to improve a recovery ratio of leaked oil and collect oil spread to a thin thickness on the surface of the seawater, and improve a collection ratio of oil by continuously circulating water into the body of a ship in which the natural circulation type oil/water separator is installed. CONSTITUTION: The natural circulation type oil/water separator comprises a lattice netting for removing alien materials of an oil/water mixed fluid flown into the body of a ship; a floating type oil guiding device for separating oil from the fluid flown into the body of the ship; a first tank equipped with a float(53) having a specific gravity between oil and water; a second tank equipped with a water level sensor which is operated when a mixture of oil and water is filled to a certain elevation; a third tank equipped with a drain pipe(56) for discharging water having a high purity from which oil is separated; a magnetic thin film type oil/water separator(55) which separates oil by forming a magnetic field in a fluid onto which magnetic substance is sprayed with a magnet installed in the tanks; and a mobile/floating type storage tank(57) which additionally stores the oil except tanks in the body of the ship storing the collected oil when collecting a large amount of oil.

Description

Running water separation apparatus for nature circulation type

The present invention relates to a naturally-circulating oil-water separator used in a wandering vessel and a purification device, and more particularly, to flow a mixed fluid of water and oil in three or more continuous tanks and to separate and collect oil during movement. It relates to a natural circulation oil-water separator.

At present, most of the domestic control vessels carry a separate floater on the ship and float it on the sea whenever it is needed to collect oil, and the above-mentioned wrecker and integral vessels have only one ship. not.

Already developed countries have developed and commercialized them as shown in Table 1 (waste repair) and Table 2 (bare / working ship), and have established marine pollution control fleets by the government and oil companies themselves. We are doing our best to prevent any pollution.

(Table 1) Repair repair

-Sk: Swimmer, Deb: Garbage Collection, Cata: Catamaran, Stor: Storage, VOSS: Vessel of Opportunity Skimming System

Table 2

The conventional control ship carries a fixed skimmer on a ship and floats it on the sea whenever necessary, pumping up seawater and oil mixed fluid with a pump. Collection was nearly impossible.

Therefore, the present invention was devised to solve the above problems, and its purpose is to improve the recovery efficiency of oil leakage and to collect the oil spread thinly on the sea water using a natural circulation oil / water separator.

In addition, the present invention has a purpose to improve the collection efficiency by continuously circulating the water into the hull as a ship integrated type installed natural circulation oil-water separation device in the vessel itself.

1 is a view showing a conventional waterline.

Figure 2 is a view showing the natural circulation oil-water separator of the present invention.

Figure 3 is a view showing a floating oil separation apparatus applied to the present invention.

Figure 4 is a view showing a circulation separation tank applied to the present invention.

5a and 5b is a view showing a magnetic thin film oil-water separator.

6 is a view showing a water level sensor applied to the present invention.

Figure 7 is a schematic diagram of the present invention natural circulation oil-water separation system.

8 is a flow chart of FIG.

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

10: grid 20: bulkhead

21: level switch 22: pump

50: hull motion simulator (athlete) 51: hull motion simulator (stern)

52: oil sensor 53: oil-water separation float

54: oil storage tank 55: magnetic thin film oil-water separator

56: drain pipe 57: storage tank

58: mixed flow fluid supply pipe 59: aerial simulator

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

Embodiment of the natural circulation oil-water separator of the present invention,

A grid for removing foreign substances from the mixed flow of flowing water into the hull,

A floating oil induction device for separating oil from the introduced fluid,

A first tank having a float having a specific gravity between oil and water;

A second tank having a water level sensor which operates when a mixture of water and oil is filled to a certain height;

A third tank having a drain pipe for discharging high-purity water from which oil is separated;

A magnetic thin film oil / water separator for separating oil by forming a magnetic field with a magnet installed in a tank by spraying a magnetic material;

It is preferable to include a mobile / floating storage tank that can be stored in addition to the tank in the hull collected when a large amount of oil collected.

The number of the tank is preferably installed a plurality depending on the size of the ship, the type of oil, the target collection efficiency.

The water level sensor is preferably provided with a float sensor to start the operation of the pump and a float sensor for stopping the pump operation.

Figure 2 is a view showing the natural circulation oil-water separator of the present invention, Figure 3 is a view showing a floating oil separation device applied to the present invention, Figure 4 is a view showing a circulation separation tank applied to the present invention, 5A and 5B are views showing a magnetic thin film type oil / water separator, FIG. 6 is a view showing a water level level sensor applied to the present invention, FIG. 7 is a schematic view of a natural circulation oil / water separator system of the present invention, and FIG. 8. 7 is a flowchart of FIG. 7 and will be described with reference to the following.

It consists of several tanks of natural circulation, and the tank of the first stage is installed with a grid to remove foreign substances from the mixed flow of water flowing into the hull and floating as shown in FIG. An oil drawer is installed so that only oil that is lighter than water flows into the float.

In the passage of the second stage, the level sensor (or oil sensor) is attached. When the water level reaches the height of the bulkhead between the next tank, the detector operates and the pump connected to it operates the water at the bottom of the tank. By discharging, only oil having a smaller specific gravity than water is moved to the tank through the upper part of the bulkhead, thereby improving oil separation efficiency.

The number of tanks for these functions can be determined by considering the size of the ship, the type of oil and the target collection efficiency.

The mixture of water and oil sucked into the inlet of the hull passage is separated by one stage of oil by means of a floating oil guide installed on the surface during the first stage.

In this process, the oil is lighter than water, so the oil is sucked in more than the water and the next step is taken.

The second stage is a recirculating tank, where a level switch (or level sensor) is activated depending on the water level, thus moving to the next tank along the oily surface flow passage.

When the mixture of water and oil reaches the height of the bulkhead between the next tank, the pump is operated by the level sensor so that the water in the lower part is pumped out of the hull and the oil moves to the next tank along the passage.

In the tank of the third stage, water is discharged as in the previous stage, and the discharged water is led to the auxiliary tank so that the magnetic material sprayed from the magnetic thin film oil / water separator as shown in FIGS. 5A and 5B surrounds the oil. The magnetic field is formed by magnets installed inside to separate the oil and collect even fine oil particles. Since the purity of the oil is very high, when the oil is filled to a certain height, it is stored in the oil storage tank through the pipe.

6 shows the water level sensor, when water rises up to point A, the floating sensor 1 rises up to point B by buoyancy, and up to point D by buoyancy when it rises up to point C through point B.

When it rises up to the floating sensor 2D point, it sends a signal from the level switch to operate the pump at the control device so that the water from below is pumped up.

When the water level goes back through point D to point A, a signal is sent from the level switch to stop the pump at the control.

With this principle, when the oil reaches a certain height, the oil naturally moves to the next stage and moves to the oil storage tank, and the water moves to the water storage tank using a pump.

7 is a model diagram of a natural circulation oil-water separation system manufactured to test oil recovery efficiency, which will be described below with reference to FIG. 8.

Leakage on the sea is introduced through the hull passage (50) (51) (s10), the mixed fluid of the introduced oil and water is first separated by the floating surface flow guide device (53), separation The mixed fluid is separated by the water level detecting device 52, the mixed fluid containing a small amount of oil in the lower layer is moved to the first stage through the circulation preservation space between the hull (s12 ~ s13), a large amount of the upper layer The mixed fluid containing oil is separated by the water level detection device 52 of the tank of the next step (s14 to s15).

This process can recover the high purity oil through more separation process according to the number of each tank, the mixed fluid is separated by the magnetic thin film oil-water separator 55 is stored in the oil storage tank 54 ( s16 to s17).

(Table 3) Model test data for checking the oil-water separation efficiency

Stage 1 Tier 2 Tier 3 Total Input Index (100) Collection Index (95) Collection Index (92) Collection Index (90)

As a result of the test by the model, the oil separation efficiency is over 90% as shown in Table 3, and this value is estimated to be more than 5 times that of the existing equipment. That is, it can be seen that the oil-water separation efficiency of Table 3 is more than five times compared to the existing 10 to 15%.

As described above, according to the present invention, oil leakage from crude oil or various reservoirs leaked due to a large sea accident can be recovered more rapidly and a large amount of oil leakage than a conventional oil sump, and three or more stages of oil separation are made. Recovery efficiency is much higher than before.

Therefore, not only can it bring environmental effects such as possessing marine oil recovery vessels and establishing design technology for marine pollution prevention equipment, but also activate marine pollution control industry, reduce marine pollution removal technology fee, reduce cost of shipbuilding industry and import substitution effect. In addition, it can achieve economic effects such as preventing marine pollution accidents and reducing environmental protection finances.

Claims (3)

A grid for removing foreign substances from the mixed flow of flowing water into the hull, A floating oil induction device for separating oil from the introduced fluid, A first tank having a float having a specific gravity between oil and water; A second tank having a water level sensor which operates when a mixture of water and oil is filled to a certain height; A third tank having a drain pipe for discharging high-purity water from which oil is separated; A magnetic thin film oil / water separator for separating oil by forming a magnetic field with a magnet installed in a tank by spraying a magnetic material; Natural circulating oil-water separator device comprising a; moving / floating storage tank that can additionally store the oil collected when a large amount of oil collected in addition to the tank in the hull. According to claim 1, The number of tanks natural circulation oil-water separator, characterized in that a plurality can be installed according to the size of the vessel, the type of oil, the target collection efficiency. According to claim 1, wherein the water level sensor is a natural circulating oil-water separator characterized in that it comprises a float start sensor and the pump stop operation float sensor.