RU147605U1 - Pop-up boom boom - Google Patents

Abstract

1. A pop-up boom barrier comprising an elastic inflatable shell made of separate sections hermetically connected by connecting devices, as well as a source of compressed gas and a shutter to relieve operating pressure, characterized in that the internal space of the sections is made uniform, for which the connecting devices are equipped with a transition a hole, and the source of compressed gas is connected to the front end of the first section, which can be fixed at a depth less than the depth of the reservoir, for which there is a fix device. 2. The fence according to claim 1, characterized in that the connecting device of the shell sections is a camlock. 3. The fence according to claim 1, characterized in that the locking device is made in the form of a winch.

Description

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

A flooded device for localizing oil spills in reservoirs is known, including a barrier in the form of a flexible tape element supported by floating cylindrical structures, as well as ballasts in the form of anchors (see, for example, US patent No. 3779020, IPC E02B 15/04, publ. 18.12. 73 g.).

A disadvantage of the known design is the difficulty in operation, because to free the water surface for shipping, it is necessary to flood the fence by filling cylindrical structures (floats) with water, and when an oil spills, lift it to the surface (by displacing water from these structures with compressed air), for which it is necessary to use special, including controlling, devices.

A pop-up device for localizing oil spills in water bodies is also known, including a barrier in the form of an elastic inflatable shell with a ballast, as well as a compressed gas source equipped with a control system installed on the shore and connected to the inflatable shell using a pipeline (see, for example, SU copyright certificate No. 655768, IPC E02B 15/06, publ. 05.04.79).

The disadvantage of this device is also the difficulty in operation associated with the use of a layer of water located inside the whole shell and pumped into it during the ascent from the bottom simultaneously with the supply of compressed gas, for which the device must have, in addition to the compressor (creating a sufficiently high pressure, negatively affecting the longevity of the shell) is also a pump with two pipelines for supplying and pumping water.

In addition, the whole shell has a certain length, which does not allow the use of the same fence on another wider section of the river, and also does not have the flexibility necessary to install a fence, for example, around a source of pollution located on the shore.

A well-known pop-up boom barrier for localizing oil spills in reservoirs is known (see, for example, patent No. 119759 dated 04/12/2014 for utility model, published 08/27/2012), including an elastic inflatable shell made of separate sections, hermetically sealed interconnected connecting devices, as well as a source of compressed gas and a shutter to relieve operating pressure.

The main disadvantage of this boom is the low durability of the shell, because its design features: the presence of a common pipeline inside the shell, equipped in each section with a hole for supplying compressed gas, as a result of which gas enters all sections at the same time (i.e. parallel connection of sections to a source of compressed gas), - allow it to be lifted to the surface of a reservoir only by simultaneously lifting all sections. To do this, at the first moment, a large volume of compressed gas must be supplied at a sufficiently high pressure (for which there is a storage receiver), which destructively acts from the inside onto the shell at each lifting of the barrier, and the deeper the pond, the greater the load the shell experiences.

This is explained by the fact that when the barrier is located, for example, at a depth of H = 15 m, in order to overcome the water pressure on the shell surface during its filling with compressed gas, it is necessary to immediately apply a pressure P = 1.5 atm to the shell, because in accordance with the basic laws of physics (see, for example, A.V. Peryshkin, “Physics”, Grade 7, M., because of “Drofa”, 2007, p. 90, 91) hydrostatic fluid pressure P = pgH, where P is the pressure on the shell from the outside, p = 1000 kg / m ³ is the density of water, g = 9.81 n / kg is the acceleration of gravity, H = 15 m, i.e. P = 1000 kg / m ³ × 9.81 n / kg × 15 m = 147150 n / m ² or 147150 Pa, which is approximately 150 kPa, and if we take into account that 1 atm. approximately equal to 100 kPa, then P = 1.5 atm., which is perceived by the shell as a pneumatic blow from the inside.

These design features do not allow the use of barriers in water bodies of great depth.

Flooding of the fence is also carried out by simultaneously flooding all sections, which occurs, as a rule, randomly and takes a lot of time, because gas (after relieving the working pressure in the pipeline by means of a valve) gradually exits simultaneously from all sections through openings in the pipeline.

The utility model solves the problem of increasing the durability of the boom shell by creating the possibility of reducing the pressure of the compressed gas necessary for its lifting.

To solve this problem, in the well-known pop-up boom barrier, including an elastic inflatable shell made of separate sections, hermetically connected by connecting devices, as well as a source of compressed gas and a shutter to relieve working pressure, in accordance with the utility model, the internal space of the sections is made uniform, why the connecting devices are provided with a corresponding hole, and the source of compressed gas is connected to the front end of the first section, with the possibility of fixing at a depth, enshey than the depth of the reservoir, which has a fixing device.

The section connecting device is a camlock.

The locking device is made in the form of a winch.

The inventive device has an increased durability of the shell, because due to its design features: the presence of a common internal space of the shell sections, the connection of the compressed gas source to the front end of the first section (i.e., the serial connection of the sections to the compressed gas source), the presence of a locking device for fixing the front end of the first section to a depth less than depth of the reservoir - it becomes possible to use a significantly lower pressure of compressed gas to lift the fence.

This is explained by the fact that when the barrier is raised, the compressed gas first enters the first section, the front end of which has the possibility of fixing at a depth h less than the depth of the reservoir, and to fill this section with gas and create a buoyancy force, it is sufficient to use a pressure of compressed gas that is slightly larger 0.1 h, as (see ibid., A.V. Peryshkin., p. 90, 91) the hydrostatic pressure of the liquid on the surface of the section P = pgH, where p = 1000 kg / m ³ is the density of water, g = 9.81 n / kg - gravitational acceleration, i.e. P = 1000 kg / m ³ × 9.81 n / kg × h m = 9810 n / m ² or 9810 Pa, which is approximately 10 kPa, and if we take into account that 1 atm. approximately equal to 100 kPa, then P = 0.1 h atm. And then the pop-up first section with the rear end pulls the second section along, where, when it reaches depth h, due to the common internal space of the sections, compressed gas begins to flow, etc., until all the sections sequentially float to the surface of the reservoir.

The device in accordance with the utility model can be used in water bodies up to 50 meters deep.

The inventive utility model has a set of essential features unknown from the prior art for objects of similar purpose, which allows us to conclude that it meets the criterion of "novelty."

A utility model is illustrated in the drawing, where in FIG. 1 - front end of the boom in the position before lifting the boom, front view (the dotted line is the intermediate position when lifting the boom, h is the depth of fixation of the front end of the first section), in FIG. 2 - the rear end of the boom in the working position.

A boom made of rubber fabric consists of sections, the upper part of which in the form of sections 1 (Fig. 1, 2) forms an elastic inflatable shell of the barrier.

Section 1 (Fig. 1) of the shell is hermetically connected by means of standard camlock connections 2 having openings 3 combining the cavity of the sections into a single space.

At the bottom of each boom section there is a pocket with ballast in the form of a chain (not shown).

The sections of the fence are connected by the simplest in design devices (quick-release locks such as ASTM, not shown).

To fix the boundary line of the fence in the working position (on the surface of the reservoir) there are chain extensions and bottom anchors (not shown).

The fence has (Fig. 1) a source of compressed gas - a compressor 4 connected by a flexible pipe 5 to the front end of the first section 1, as well as a shutter 6 installed at the pumping station, designed to relieve the working pressure in the shell before flooding the fence.

The last section 1 is equipped with a valve for automatic relief of excess pressure and removal of accumulated condensate from the shell (not shown).

The fence using cable extensions 7 (Fig. 1, 2) is fixed on opposite sides of the reservoir. At the same time, at the front end of the boom (Fig. 1) there is a locking device made in the form of a winch 8 installed on the shore and designed to fix the front end of the first section at a depth b before lifting the boom.

The rear end of the fence (Fig. 2) is fixed on the opposite bank of the reservoir using anchor 9.

For subsequent accelerated flooding of the boom, there is a load 10 located at the end of the last section, which is necessary to hold this end near the surface of the reservoir after the ascent of the boom.

The device operates as follows.

Downstream of the river relative to the place of a possible oil spill, a line for the installation of a boundary is formed, for which the ends of the boom are fixedly fixed on opposite banks with cable braces 7 (Fig. 1, 2), winch 8 and anchor 9 (Fig. 1). The compressor 4 is connected by a pipe 5 to the front end of the first section 1, the shutter 6 is closed.

In the idle state, the fence is located at the bottom of the reservoir, with the help of ballast, taking the form corresponding to the topography of the bottom, so it does not interfere with navigation.

In the event of a threat of oil spill, the operator, using the winch 8 (Fig. 1), raises the front end of the fence from the bottom and fixes it at a depth h, for example, equal to 3-4 meters.

Then, from the compressor 4 using the pipeline 5, the pressure 0.3-0.4 atm is supplied to the first section 1. (no more than 0.5 atm.). At the same time, the pressure of the compressed gas overcomes the pressure of the water on the surface of the first section, and it acquires a volume that creates a buoyancy force, which raises the rear end of the section along with chain extensions to the surface of the reservoir. Gradually, in the process of pushing the rear end of the first section, the front end of the second section rises to a depth of 3-4 meters, and compressed gas through the opening 3 begins to flow into the second section, overcoming the water pressure on the surface of this section and giving it a volume that creates a buoyancy force. And so on, sequentially until the last section, as a result of which the entire obstacle rises. After that, the supply of compressed gas is stopped, and in all sections 1 the necessary working pressure is set (for which an overpressure relief valve may work).

The rear end of the last section in the working position of the boom is located at a certain depth from the surface of the reservoir using the load 10.

After the ascent, the fence blocks the river and prevents oil spill downstream.

The flooding of the fence is also carried out sequentially, but in the reverse order, i.e. starting from the last section.

To do this, it is necessary to open the shutter 6, as a result of which the compressed gas begins to exit the sections. At the same time, the last section, located below the surface of the water (Fig. 2) and therefore experiencing a slightly greater pressure of water on its surface than the other sections, begins to decrease first in volume and fall down, dragging along the penultimate section.

As the sections are successively lowered down (under the influence of the weight of the ballast), the water pressure sequentially (from the last section to the first) pushes the compressed gas out of the sections through the shutter 6, which significantly speeds up the process of releasing the barrier shell and lowering it to the bottom of the reservoir.

The inventive boom boom passed operational tests, confirming the possibility of reducing the pressure required to lift it.

Claims (3)

1. A pop-up boom barrier comprising an elastic inflatable shell made of separate sections hermetically connected by connecting devices, as well as a source of compressed gas and a shutter to relieve operating pressure, characterized in that the internal space of the sections is made uniform, for which the connecting devices are equipped with a transition a hole, and the source of compressed gas is connected to the front end of the first section, with the possibility of fixing at a depth less than the depth of the reservoir, for which there is a fix device. 2. The fence according to claim 1, characterized in that the connecting device of the shell sections is a camlock. 3. The fence according to claim 1, characterized in that the locking device is made in the form of a winch.

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