RU213645U1 - boom section - Google Patents

Abstract

The utility model relates to environmental protection, namely to hydraulic structures designed to enclose a section of the water surface in order to prevent the spread of oil and oil products. The boom section includes an inflatable buoyancy chamber that holds the cloth and ballast in the lower part of the cloth and is equipped with a pressure relief/increase valve. The buoyancy chamber contains a spring in the inner cavity, which rests on plastic rings, while the spring and rings are wrapped in a flexible membrane, forming a sealed cylinder. The ballast consists of steel cable segments of equal length, interconnected by a hinged mechanism. The section is transferred to the folded state by compressing the spring along its axis, while the panel is folded into three layers, and the folded state of the section is fixed by a flexible belt. The technical result consists in the localization of oil spills in the fast flow of the river. 4 ill.

Description

The utility model relates to the field of ecology, in particular to hydraulic structures designed to enclose a section of the water surface in order to prevent the spread of oil and oil products.

A variable buoyancy boom is known (RF patent No. 2599560, IPC E02B 15/00, 2016), containing a flexible pipe, one end of which is leaky and communicates with the water mass of the river, and the other end is plugged with a fitting to which an air-vacuum pump is attached. In the cavity of the pipe there is a piston that completely covers the cross section of the pipe. If necessary, in order to float the boom, air is pumped into the pipe cavity by an air-vacuum pump, which, using a piston, squeezes out water through the leaky end of the pipe.

The disadvantage of such a boom is that in order to localize the oil spill, this device must be installed in advance at the bottom of the reservoir, and cannot be used under other conditions.

Known constant buoyancy boom "UZH" (www.nttufa.ru), made according to TU 4834-002-20671179-99, including a buoyancy chamber filled with elastic foamed polyethylene, with a panel at the bottom and a ballast fixed at the bottom of the panel.

The disadvantage of the known analogue is that the barrier section cannot be reduced in volume, which makes it difficult to deliver the boom to the oil spill site.

Known boom barrier, taken as a prototype, consisting of inflatable buoyancy chambers holding the panel and ballast in the lower part of the panel (RF patent No. TU 4834-002-20671179-99).

The disadvantage of these devices is the inability to retain oil during the fast flow of the river. This is manifested in the fact that the inflatable chamber of the boom can be crushed under the pressure of water in the most vulnerable place, which will lead to oil spill over the boom.

The objective of the present invention is to provide a device capable of retaining oil even in a fast flowing river and at the same time be convenient for transportation.

This technical result is achieved due to the fact that the buoyancy chamber contains a compression spring in the internal cavity, which acts as a frame, according to the invention, the boom section can be folded along its axis when the spring is compressed.

The essence of the invention is illustrated by drawings, where in Fig. 1 shows a diagram of the section of the boom in the folded state, in Fig. 2 in working condition, in Fig. 3 is a three-dimensional diagram of the section of the boom in working condition, installed on the reservoir, fig. 4 - scheme of the longitudinal tension element for the section of the boom in the folded state.

The boom section with an internal spring-type frame contains a buoyancy chamber 1, in the inner cavity of which a spring 2 is placed, resting from the ends on plastic rings 3. The spring and rings are wrapped with a flexible membrane 4, forming a sealed cylinder. The buoyancy chamber holds the panel 5, which can be folded into three layers, in the lower part of which a ballast 6 is provided, consisting of sections of a steel cable 7 of equal length, interconnected by a hinged mechanism 8. The buoyancy chamber has a pressure relief / pressure increase valve 9. From the ends sections of the boom, panels 10 are provided, equipped with brackets 11 on one side and carabiners 12 on the other, to ensure the connection of the sections to each other. To keep the boom section in the folded state, a flexible belt 13 is provided.

The operating principle of a boom with an internal frame of a spring type is as follows. Initially, boom sections are delivered to an installation site located downstream of an oil or oil product spill. The boom installation process begins with the transfer of sections from the folded state (Fig. 2) to the working state (Fig. 1). To do this, it is necessary to open the pressure relief / pressure increase valve 9, then remove the flexible belt 13, wait for the spring 2 to straighten, then carry out additional air injection through the valve 9 and close it. The sections of the boom are assembled together by connecting the longitudinal tension element (ballast) 6, as well as with the help of brackets 11 and carbines 12. The assembled whip is towed from one bank to another at an angle to the direction of the river flow and fixed, after which it localizes on the surface water spilling oil product.

A boom with an internal frame of a spring type is stored and transported in a folded state, which is characterized by three times compression of the buoyancy chamber. This is due to the folding of the section panel into layers. The spring rests on plastic rings to distribute pressure on the ends of the buoyancy chamber. In the event of an oil/oil product spill, the barrier sections are transferred from the folded state to the working position. The relief/pressurization valve opens to equalize the pressure with the environment. When the flexible belt is removed, the spring will move from a compressed state to a free one, and the buoyancy chamber and the panel will straighten after it. Air is additionally injected into the barrier section to increase the rigidity of the structure, after which the valve closes.

The transfer of the section to the folded state is carried out when the pressure relief / pressure increase valve is opened. To compress the spring, you can use a drum winch, and then fix the folded state with a flexible membrane.

A boom with an internal spring-type frame provides:

- the ability to reliably keep oil on the surface of the reservoir, even with a fast flow;

- ease of transportation, due to the fact that the barrier sections can be folded along their axis;

- quick transfer of the section to working condition due to the fact that the buoyancy chamber is spontaneously filled with air when the spring is straightened when the pressure in the section is equalized with the atmosphere.

Claims (1)

Boom section, including an inflatable buoyancy chamber, holding a panel, in the lower part of which contains ballast, equipped with a pressure relief and increase valve and containing a spring in the internal cavity, based on plastic rings, while the spring and rings are wrapped with a flexible membrane, forming a sealed cylinder, the ballast consists of steel cable segments of equal length, interconnected by a hinge mechanism, while the spring can be compressed along its axis, and the panel can be folded into three layers, the folded section is fixed with a flexible belt.

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