JPH0333592B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tank for storing different types of oil.

Crude oil is stored in separate tanks for each type of oil, such as gasoline, kerosene, petroleum products, and heavy oil, but their capacity is determined by the seasonal peak demand for oil, so product oil tanks are The operating rate is estimated to be approximately 60%, which is extremely low. Of course, it is possible to store different types of oil in a single tank by cleaning the inside of the tank, but in reality this is not possible due to the difficulty of cleaning and the uncertainty of supply and demand forecasts. For this reason, it is necessary to install tanks for each product and according to the peak of demand, and it is also necessary to invest in additional equipment (safety devices, oil barriers, etc.).

The present invention has been studied in view of the above problems, and it is an object of the present invention to provide a tank that can economically store two or more types of oil in one tank.

That is, in the tank for storing different types of oil of the present invention, a cylindrical tank is provided with a support, and the cylindrical tank is divided into a plurality of spaces using a non-liquid-tight fixed wall around the support, and each space is divided into two. A diaphragm is provided as a fluid sealing means to divide the space into two parts, and oil can be injected or discharged into one part or part, and replacement water or a different type of oil can be injected or discharged into the other part or part. It is characterized by being made possible.

The invention will now be explained in a non-limiting manner with reference to the illustrative drawings.

FIG. 1 is a perspective view of a tank for storing different types of oil according to the present invention. However, the figure illustrates the case of 3 oil types or 2 oil types and 1 displacement water. In these figures, 1 is a cylindrical tank made of steel, concrete, etc., 2 is a membrane support, 3 is a non-liquid-tight fixed wall, and 4 is a flexible membrane material such as rubberized cloth, polyvinyl chloride tarpaulin, rubberized It shows a diaphragm (hereinafter simply abbreviated as diaphragm) as a fluid sealing means made of a composite membrane of cloth and plastic film.

That is, in the present invention, a support 2 is provided at the center of the cylindrical tank 1, and the cylindrical tank is divided into a plurality of spaces by a fixed wall 3 using the support 2 as a center line, and a diaphragm is installed in each space to divide the space into two. 4. (For example, the DFFGD line is the diaphragm attachment line.) Note that the diaphragm in each space allows 2
One divided part and the other part are provided with an inlet 5, an outlet 6, an inlet 7, and an outlet 8 (the inlets and the outlets that sandwich the non-liquid-tight fixed wall are shared). ).

When using this tank, for example, 3
Oil type A, oil type B, oil type C, or replacement water is injected into each of the two chambers through the injection port and stored. In order to facilitate understanding of the above-mentioned chamber, for example, chamber 9 in which oil type C or replacement water is stored, diagonal lines have been added to the upper surface of the chamber. Alternatively, the oil may be discharged and taken out through the outlet, but in that case, the remaining space in the other chamber, which is generated depending on the amount of oil in one chamber, is separated from the oil in one chamber through the diaphragm, and the other oil is removed. Alternatively, fill the chamber with replacement water and keep the oil chamber full. Filling it up like this prevents gas from being generated.

Note that the support 2 may be provided with a pipe for injecting and discharging oil and replacement water inside. In addition, the fixed wall is used to hold the diaphragm fixed (when the diaphragm expands after filling with liquid, the fixed wall maintains the shape of the diaphragm) and to prevent mutual interference with the adjacent space when the diaphragm expands (if If there is no fixed wall, the diaphragms will come into contact with each other, and because the diaphragms are made of a flexible material, they will rub or twist at the contact points), and are made non-liquid-tight. By providing fluid circulation, it is possible to simplify the oil storage or replacement water system in two adjacent spaces.

The tank of the present invention as described above has the following effects.

Because of the diaphragm, two or more types of oil can be stored in one tank.

Even if the storage amount for each type of oil varies, a constant volume of liquid, including oil and replacement water, can always be stored in the tank, and gas generation from the oil can be prevented.

In the conventional method, the number of tanks corresponding to the number of oil types was required, but according to the present invention, it is possible to consolidate the number of tanks by storing different types of oil in one tank. Therefore, tank construction cost,
It is possible to reduce the cost of land. Furthermore, especially by storing different types of oil through the diaphragm, the operating efficiency of the tank is further improved. This improves the economics of the system.

A vertical diaphragm is installed in a space where a cylindrical tank is partitioned radially by fixed walls. Therefore, the liquid can be discharged from each storage space without any problem. Furthermore, even if liquid is poured into the storage space regardless of its specific gravity, no pressure is applied to the membrane material, that is, there are no restrictions on the use of the tank.

Since it does not use a bag-like membrane material that is the same size as the tank chamber, the amount of membrane material used is extremely small, making it economical.

[Brief explanation of drawings]

FIG. 1 illustrates a perspective view of a tank of the invention. DESCRIPTION OF SYMBOLS 1...tank, 2...support column, 3...non-liquidtight fixed wall, 4...diaphragm as fluid sealing means, 5...
...Inlet, 6...Outlet, 7...Inlet, 8...
Discharge port, 9... Chamber, for example, a chamber for storing oil type C or replacement water.

Claims (1)

[Claims] 1 A cylindrical tank is provided with a support, and the cylindrical tank is divided into a plurality of spaces using a non-liquid-tight fixed wall around this support as a center line, and a diaphragm is provided in each space as a fluid sealing means to divide the space into two. A heterogeneous type characterized in that oil can be injected into or discharged from one part that divides the space into two, and replacement water or a different type of oil can be respectively injected or discharged from the other part or part. Tank for oil storage.