KR100417337B1 - Apparatus for separating water and oil with nature circulation type - Google Patents

Abstract

The present invention relates to a natural circulating oil-water separator for flowing a mixed fluid of water and oil in three or more continuous circulating tanks installed in a recovered vessel and separating and collecting oil from water by the specific gravity difference of water and oil during movement. To separate the foreign matter contained in the flowing water mixed fluid 30 introduced into the hull 1 and the grid (3), and to separate the oil (31a) floating in the upper portion of the mixed fluid received and stored therethrough A floating oil induction separator 4 for discharging oil by a float 4a having a medium specific gravity of oil and water and a discharge pump 8 for discharging the lower water 31b out of the hull 1 are provided. A first tank 2; Water level sensor 12 for detecting the water level of the lower water (32b) of the mixed fluid discharged and stored from the floating oil induction separator (4) of the first tank (2), thereby operating the water (32b) A second tank (10) having a water level control pump (14) for discharging water and a partition wall (11) for discharging the upper oil (32a) of the stored mixed fluid to the next stage; A third tank 20 for storing and storing the mixed fluid discharged from the second tank 10; An oil storage tank 24 for receiving and storing the upper oil 33a of the mixed fluid stored from the third tank 20; The lower water 33b of the mixed fluid stored from the third tank 20 is separated, and the contained fine oil is separated and stored in the oil storage tank 24, and the water is transferred back to the first tank 2. It provides a natural circulating oil-water separator, characterized in that consisting of a magnetic thin film type oil and water separator (25).

Description

Natural Circulation Oil Separation Equipment {APPARATUS FOR SEPARATING WATER AND OIL WITH NATURE CIRCULATION TYPE}

The present invention relates to a natural circulating oil-water separator, and more particularly, to flow a mixed fluid of water and oil in three or more continuous circulation tanks installed in a recovered water vessel, and from water by the specific gravity difference of water and oil during movement. The present invention relates to a natural circulation oil-water separator for separating and collecting oil.

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.

-Sk: Sump machine, Deb: Garbage collection, Cata: Catamaran, Stor: Storage-VOSS: Vessel of Opportunity Skimming System

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.

In order to solve the above problems, the present invention is installed integrally with the vessel inside the wandering vessel to continuously infiltrate the oil and water that is thinly spread on the sea surface to separate by natural circulation by the difference in specific gravity of water and oil. At the same time, the purpose of the present invention is to provide a natural circulation oil-water separator that can maximize oil-water separation efficiency by removing trace oils contained in water.

1 is a conceptual diagram showing a natural circulation oil-water separator according to the present invention;

Figure 2 is a perspective view showing a floating oil separator constituting the natural circulation oil-water separator according to the present invention;

3 is a conceptual view showing a second cycle separating tank constituting the natural circulation oil-water separator according to the present invention;

Figure 4 is a principle diagram showing the principle of the magnetic thin film oil-water separator constituting the natural circulation oil-water separator according to the present invention;

Figure 5 is an enlarged front view showing a water level level sensor constituting the natural circulation oil-water separator according to the present invention;

6 is a model diagram of a natural circulation oil water separation system for developing a natural circulation oil water separation apparatus according to the present invention.

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

DESCRIPTION OF SYMBOLS 1 Hull 3: Grid network 4a: Floating fluid 4: Floating oil induction separator 8: Discharge pump 2: 1st tank 12: Water level sensor 14: Water level control pump 11: Bulkhead 10: 2nd tank 20: 3rd tank 24: oil storage tank 25: magnetic thin film oil-water separator

In order to achieve the above object, the present invention provides a grid for removing the foreign matter contained in the flowing water mixed fluid introduced into the hull, and the oil to separate the oil floating in the upper portion of the mixed fluid received and stored therethrough A first tank having a floating oil induction separator for discharging oil by a float having a medium specific gravity of water and a discharge pump for discharging the lower water out of the hull; A level level sensor for sensing the level of the lower water of the mixed fluid discharged and stored from the floating oil induction separator of the first tank, a level control pump operating by this to discharge water, and an upper oil of the stored mixed fluid A second tank having a partition wall for discharging to a next step; A third tank for receiving and storing the mixed fluid discharged from the second tank; An oil storage tank configured to receive and store the upper oil of the mixed fluid stored from the third tank; Characterized in that it consists of a magnetic thin film type oil and water separator to separate the fine oil contained in the lower water of the mixed fluid stored from the third tank to store the oil storage tank, the water is transferred to the first tank again. In addition, the present invention provides a natural circulation oil-water separation device. The present invention also provides a natural circulation oil-water separation device, characterized in that at least three tanks are installed according to the size of the vessel, the type of oil, and the target collection efficiency. In addition, the present invention is a first level sensor for detecting the water level level sensor provided in the second tank to detect the operation start of the water level control pump, and the second detection and indication of the operation stop of the water level control pump It provides a natural circulation oil-water separation device comprising a floating sensor. Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual view showing a natural circulation oil-water separator according to the present invention, Figure 2 is a perspective view showing a floating oil separator constituting the natural circulation oil-water separator according to the present invention, Figure 3 is a present invention 4 is a conceptual view illustrating a second separation type tank constituting the natural circulation oil / water separator according to the present invention, and FIG. 4 is a principle diagram illustrating the principle of the magnetic thin film type oil / water separator that constitutes the natural circulation oil / water separator according to the present invention. 5 is an enlarged front view illustrating a water level level sensor constituting the natural circulation oil / water separator according to the present invention.

As shown in Figure 1, the natural circulation oil-water separation tank (2, 10, 20) constituting the present invention is formed integrally installed in the hull. First, to separate the oil water by the separation process of the first step The grid 1 is installed in the first tank 2 in a portion into which the mixed fluid 30 of the upper surface flows in order to remove foreign substances from the flowing water mixed fluid 30 flowing into the hull 1. When the mixed fluid introduced through the grid 3 is stabilized after a predetermined time in the first tank 2, the oil moves upwards and the water moves downwards to form a boundary surface due to the specific gravity difference between water and oil. As described above, when water and oil are formed horizontally, the floating oil induction separator 4 installed in the first tank 2 discharges the oil to the second tank 10, and the lower water 31b is provided to be discharged out of the hull 1 by an inlet 6 and a discharge pump 8 at the bottom of the first tank 2. That is, in the floating oil induction separator 4, as shown in FIG. 2, the floating body 4a having a medium specific gravity value of water and oil on the upper portion is moved to the water-oil interface. The elastic corrugated rubber hose 7 is associated with the lower portion so that it can move freely, and the corrugated rubber hose 7 is associated with the second tank 10 again. The oil separated from the separator 4 is discharged to the second tank 10 through the corrugated rubber hose 7.

The second tank 10, as shown in Figure 3, is provided with a level sensor 12. This is associated with the lower part of the second tank 10 when the mixed fluid guided and stored from the floating oil induction separator 4 is stored above a predetermined level and the water level is increased to a predetermined level or more. The water level control pump 14 operates by receiving the signal 16 of the sensor 12 to discharge the water 32b out of the hull 1 to adjust the water level in the second tank 10.

When the water level reaches the predetermined level of the partition wall 11 between the post process tank, that is, the third tank 20, the water level sensor 12 detects this, and the electric level is converted into an electrical signal. Since the connected water level control pump 14 operates to discharge the lower water 32b of the second tank 10, only the upper oil 32a having a smaller specific gravity than the water moves to the tank through the partition wall, thereby separating the oil. Improve the efficiency.

Looking at the operation configuration of the above-described water level level sensor 12 in detail, as shown in Figure 5, when the water is filled up to the point A, the second floating sensor 12b is raised to the point B by its own buoyancy The water level control pump 14 is ready to operate,

As the water level increases further and rises to point C after the point B, the first floating sensor 12a is raised to the point D by its own buoyancy, and this time is signaled and operated by the water level control pump 14. .

In this way, the discharge of the water is made, the water level of the tank 10 is lowered to the point A after passing through the point D is to send a signal from the level sensor 12, the operation of the water level control pump 14 is important.

In this way, when the mixed fluid in the second tank 10 reaches a certain height, the oil 32a naturally moves to the third tank 20, which is the next step, and the lower water 32b is a water level control pump. It is discharged out of the hull using (14). The first to second tanks 2, 10 having the above-described functions can determine the number of installations in consideration of the size of the ship, the type of oil, and the target collection efficiency. .

The oil-and-water mixed fluids which have passed through the first to second tanks 2 and 10 respectively configured as described above are separated into water and oil in the respective tanks 2 and 10 so that the water is discharged to the outside of the hull 1, Only a large amount of oil is discharged to the final third tank 20. The mixed fluid discharged and accommodated in the third tank 20 is stabilized after a predetermined time and the upper oil 33a and the lower water 33b are discharged. When separated into, the upper oil (33a) is installed in the hull (1), or pumped and stored in the oil storage tank 24 installed in a mobile or floating outside the hull,

The lower water 33b contains a small amount of fine oil and is led to a magnetic thin film type oil / water separator 25 installed in the hull 1 to remove such oil.

The magnetic thin film oil / water separator 25 applied to the present invention is conventional, and the principles thereof will be described with reference to FIGS. 4A and 4B as follows.

That is, when the water 33b containing the fine oil component passes through the circulation channel 40 of the magnetic thin film oil / water separator 25 constituting the present invention, the magnetic material (not shown) is sprayed onto the water, and the magnetic material is oil particles. When the fluid is passed between the magnets (magnet poles) 41 installed inside the separator 25 to form a magnetic field, the oil component surrounded by the magnetic material is the pair of magnet poles 41 described above. Among the magnetic fields formed by), the oil layer 42 is formed by rising to the uppermost strength, and a layer 43 is formed in the central portion of the circulation channel 40 in which oil and oil components surrounded by magnetic material are mixed. In the lower part, the oil particles are separated to form a layer 44.

In this case, the oil layer 42 formed on the upper portion of the circulation channel 40 is collected by pumping, so that the water passing through the magnetic thin film type oil / water separator 25 is separated into high purity oil and water.

Then, the separated high purity oil is transferred to and stored in the oil storage tank 24 described above, and water is led to the first tank 2 again to undergo an oil-water separation process.

Hereinafter, the operation of the present invention will be described with reference to the results of direct experiments with a natural circulation oil / water separation system model. FIG. 6 is a natural flow type oil / water separation system model for developing a natural circulation oil / water separation device according to the present invention. to be.

In the natural circulation oil / water separation system model according to the present invention, the hull athlete simulator 50 and the stern simulator 51 are installed on the left and right sides for the hull motion simulation. In the storage tank 57, a mixed fluid in which water and oil are mixed at a predetermined ratio is stored, and the mixed fluid is supplied to the natural circulation oil / water separation system model by the air simulator 59. The natural circulation oil / water separation Through the hull bow passage of the system model, the mixed fluid flows into the first tank (2), and the introduced oil and water mixed fluid is separated into water and oil layers by the specific gravity difference when it stabilizes over a predetermined time. The oil layer containing a large amount of oil is separated by the separator 4, and the mixed fluid separated by the floating induction separator 4 is the second tank 10. It is discharged and accommodated, and when the mixed fluid is stabilized after a predetermined time, it is separated into an oil layer and a water layer by the specific gravity difference, and the separated water layer is the water level by the water level sensing device 12 installed inside the tank 10 Is detected and drained to the air simulator 59 through the lower drain pipe 56 and supplied to the bow side passage 50. In addition, a large amount of oil in the upper layer separated from the two second tanks 10 is detected. This mixed fluid flows over the partition 11 and flows into the third tank 20 of the next stage. When the mixed fluid flows into the third tank 20 and stabilizes, the oil layer and the water layer are separated again. The separated oil layer is immediately transferred to the oil storage tank 24 and stored, and the separated water is transferred to the magnetic thin film oil / water separator 25 through the drain pipe 56 to remove the oil component contained therein. As the magnetic thin film oil / water separator (25) The separated oil is transferred to the oil storage tank 24 and stored, and the separated water is transferred to the aerial simulator 59 and supplied to the natural circulation oil / water separation system model. Repeated three or more times to remove the oil of the mixed fluid from the water to remove, the results of these experiments are shown in Table 3 below.

Experimental Results of Oil-water Separation System Model for Oil-water Separation Efficiency Stage 1 Tier 2 Tier 3 Oil collection efficiency (%) 95 92 90

As shown in Table 3, the oil-water separation efficiency of the natural circulation oil-water separation system model according to the present invention was all 90% or more, this value is estimated to be five times or more than the existing device. 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)

The grid 3 to remove the foreign matter contained in the oil and water mixed fluid 30 introduced into the hull (1), and the oil to separate the oil (31a) floating in the upper portion of the mixed fluid received and stored therethrough A floating oil induction separator 4 for discharging oil by a float 4a having a specific gravity of water and water and a discharge pump 8 for discharging the lower water 31b out of the hull 1 are provided. 1 tank 2; Water level sensor 12 for detecting the water level of the lower water (32b) of the mixed fluid discharged and stored from the floating oil induction separator (4) of the first tank (2), thereby operating the water (32b) A second tank (10) having a water level control pump (14) for discharging water and a partition wall (11) for discharging the upper oil (32a) of the stored mixed fluid to the next stage; A third tank 20 for storing and storing the mixed fluid discharged from the second tank 10; An oil storage tank 24 for receiving and storing the upper oil 33a of the mixed fluid stored from the third tank 20; The lower water 33b of the mixed fluid stored from the third tank 20 is separated, and the contained fine oil is separated and stored in the oil storage tank 24, and the water is transferred back to the first tank 2. Natural circulating oil-water separator, characterized in that consisting of a magnetic thin film type oil and water separator (25). The method according to claim 1, The number of each of the first to second tanks (2, 10) is a natural circulation oil-water separator, characterized in that installed at least two according to the size of the ship, the type of oil, the target collection efficiency. The method according to claim 1, The water level sensor 12 provided in the second tank 10 has a first floating sensor 12a for detecting and indicating the start of the water level control pump 14 and stops the operation of the water level control pump 14. Natural circulation oil-water separation device, characterized in that consisting of a second floating sensor (12b) for sensing and indicating.