SU1486421A1 - Tank for oil and petroleum products - Google Patents

Description

The invention relates to oboru2

for collecting, preparing and storing oil and oil products. The aim of the invention is to reduce the loss of petroleum products. Under the roof of the tank is installed attached to the breather valve curved pipe, the outlet of which is directed to the center of the roof of the tank at an angle to its surface. This allows you to optimize the distribution of air flow in the "breaths" and "exhalations" of the tank. 1 il.

The invention relates to equipment for the collection, preparation and storage of oil and oil products.

The aim of the invention is to reduce the loss of petroleum products.

The introduction of the elements, their constructive implementation allows you to create conditions that ensure the preservation of the oil-saturated product located under them, as well as an even distribution of air masses during "inhalation".

The drawing shows a reservoir for storing petroleum products.

The tank contains a cylindrical body 1 with a roof, receiving and distributing pipes 2 and 3, a safety valve 4, a breathing valve 5. Inside the tank there is a section for changing the direction of the air flow from the breathing valve, made in the form of a bent pipe 6. One end of the pipe 6 is connected to the respiratory the valve 5, the outlet of the other end portion of the nozzle 6 is directed to the center of the roof. The axis of the outlet is an angle with the roof surface, the magnitude of which can vary during installation in the range of 45-90 °. In the lower part of the nozzle 6, a hole 7 is made for the flow of condensate.

The tank works as follows.

When the "inhale" of the tank through the breather valve 5 through the bent pipe 6 into the tank air begins to flow. When a jet of air strikes the tank roof, the air begins to move in all directions along its surface. With further inflow of air into the tank, it also moves along the top, along the roof of the tank, smoothly pushing the previous air volume down.

Since the density of air is less than the density of oil vapor, air accumulates in the upper part of the tank, only slightly mixing with the vapors of the liquid product.

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When filling the tank from its gas space through the breather valve 5, air will first be forced out. The evaporation of the liquid product is sharply reduced due to the preservation of a vapor-saturated product over it.

Depending on the angle of inclination of the axis of the bent nozzle to the roof surface of the tank, depending on the location of the breather valve 5, the flow of incoming air can be evenly distributed over the cross section of the tank in its upper part. 15

Experiments have shown that the proposed design of the tank allows you to focus the incoming air into the tank when you "inhale" the air evenly over the entire cross section of the reservoir-20 voir in its upper part. When exhaling, air will leave the tank first and the product’s vapor-saturated layer located near the product’s surface will be almost not disturbed, which will drastically reduce the loss of oil and oil products from evaporation from the tanks and reduce environmental pollution.

Claims (1)

Claim A tank for petroleum and petroleum products, containing a cylindrical body with a roof, safety and breather valves installed on the roof, a node changing the direction of the air flow from the breather valve, located under it inside the tank, characterized in that, in order to reduce losses of petroleum products, the node changes direction The air jet from the breather valve is made in the form of a bent nozzle attached by one end section to the breathing valve, while the other end section is installed so that its outlet opening facing towards the center of the roof, wherein the angle between the axis of the discharge opening and the roof surface is 45-90 °.