RU97719U1 - STAINLESS PONTON (OPTIONS) - Google Patents

Abstract

 1. Stainless pontoon, containing a carpet, consisting of separate sectors made of sheet material with a filler, a sealing shutter made of elastic polyurethane with a knot for its attachment to the carpet, support legs, mounting hatches, characterized in that the sectors are hexablocks assembled from airtight monoblocks, with each monoblock made in the form of a direct prism, at the base of which lies an equilateral triangle. ! 2. Pontoon according to claim 1, characterized in that the monoblocks are made of stainless steel or in combination stainless steel and aluminum and are assembled into hexablocks by welding. ! 3. The pontoon according to claim 1, characterized in that the pontoon carpet is assembled by connecting hexablocks using pads, rivets and bolts with nuts. ! 4. Stainless pontoon, containing a carpet, consisting of separate sectors made of sheet material with a filler, a sealing shutter made of flexible polyurethane with a knot for its attachment to the carpet, support legs, mounting hatches, characterized in that the sectors are tetrablocks assembled from sealed monoblocks interconnected by welding, with each monoblock made in the form of a direct prism, at the base of which lies a square. ! 5. Pontoon according to claim 4, characterized in that the monoblocks are made of stainless steel or in combination stainless steel and aluminum and are assembled into tetrablocks by welding. ! 6. The pontoon according to claim 4, characterized in that the pontoon carpet is assembled by connecting tetrablocks using pads, rivets and bolts with nuts.

Description

The claimed technical solution relates to the oil industry, namely to the storage of petroleum products and is intended to reduce the loss of petroleum product from evaporation during storage in vertical cylindrical tanks, to increase the fire safety of tank operation, and to reduce harmful interactions on the environment.

All over the world there is a need to store oil and oil products, which is due to the unevenness of their consumption, the seasonality of water transport for most regions of the country, the uneven operation of other modes of transport, possible disruptions to the work of related enterprises and other reasons. The more petroleum products need to be stored, the greater their loss from evaporation.

The fight against the loss of oil and oil products during their storage is provided for by the requirements of GOST 1510-84 and the Law "On the Protection of Atmospheric Air".

One of the effective methods to combat evaporation losses is to use floating pontoon tank designs

Known aluminum Pontoon "Alpon" (TU 3689-004-12739584-98), certificate No. ROSS RU.HO03.В00792) www.tpkom.com

The surface of the pontoon (flooring) is assembled from aluminum sheets connected by a system of beams, which not only ensures the tightness of the joints, but together with the floats creates the necessary rigidity of the entire structure.

To support the bottom of the tank, the pontoon is equipped with floating support legs, which can be of constant or variable height. Also, the pontoon can be equipped with a steel fixed support mounted on the bottom of the tank instead of the support posts. Pontoon is a thin-walled disk lying on cylindrical floats floating on the surface of the product. Since the floats are immersed in the product only 50% of their diameter, a free space is formed between the surface of the product and the surface of the pontoon, filled with vapors of the stored liquid. To prevent the penetration of vapors into the over-pont space, the pontoon is equipped with a skirt around the perimeter, enveloping the entire pontoon and constantly immersed in the product, creating a water seal. The required number of floats provide the pontoon with the desired buoyancy.

The above pontoon device has a number of disadvantages, such as: since: the floats are immersed in the product only 50% of their diameter, a free space forms between the surface of the product and the surface of the pontoon, filling up with vapor of the stored liquid, creating a fire and explosion hazard situation, even if there is a perimeter a skirt enveloping the pontoon, and the pontoon has floating support legs, which can be of constant or variable height or, instead of the support legs, a steel fixed support mounted on the bottom rvuara, during operation can lead to jamming due to skewing of the pontoon, which in turn leads to major accidents (pontoons to fall pumped product with the occurrence of thermal effects, resulting in fires.

The closest analogue to the claimed device pontoon is Pontoon RU 2219117 with the start date of the patent validity date 03/27/2002

Known pontoon contains a carpet from individual sectors with a filler and a sealing shutter made of elastic polyurethane with a node for its attachment to the carpet, including arched plates. In this case, individual sectors located around the perimeter from the central circle consist of separate prefabricated elements of the same type, sectors and trapezoid made of sheet material. Each element of the same type consists of a lower part that has a three-dimensional shape with a flanging outward, and the upper part - a plane with holes. The upper and lower parts, when connected, form a lock on top of the same type of element. The same type of elements are interconnected from above by flanging with a lock profile shelves in the form of a brand. Each arcuate plate of the sealing shutter has a flange at the bottom of the carpet along its radius and center, located at the end of the carpet, made in the form of trapezoid with arcuate bases, having a flanging inward, and is connected to the carpet by its flanging by a bolted connection.

The well-known pontoon, adopted as a prototype of the claimed device, is characterized by the complexity of the constructive solution of the connection of the same type of elements, which is not rational and increases the cost of the manufacturing process.

A common drawback of all known pontoons for tanks is that the pontoon compounds exposed to direct exposure to oil or its vapors are made of aluminum, which in an aggressive environment is subject to pitting corrosion, which significantly reduces the period of use of the pontoon.

The objective of the proposed technical solution is to simplify the design of the pontoon, ensure fire and explosion safety, ensure unsinkability, increase its operational and technical characteristics, simplify installation and maintenance, reduce metal consumption.

The problem is solved as follows:

The pontoon is stainless, contains a carpet of hexablocks, or tetrablocks assembled from sealed monoblocks connected by welding, each monoblock made in the form of a direct prism, at the base of which lies an equilateral triangle or square. Monoblocks are made of stainless steel or in combination: stainless steel and aluminum.

The inventive pontoon is presented in figure 1, figure 2, figure 3, figure 4, figure 5, figure 6.

Figure 1 and Figure 2 shows the position of the inventive pontoon inside the tank. Figure 1 is the implementation of hexablocks (OPTION 1), Figure 2 is the implementation of tetrablocks (OPTION 2).

Figure 3 shows the pontoon, OPTION 1, top view.

Figure 4 shows the pontoon, OPTION 2, top view.

Figure 5 shows the connection of monoblocks into larger blocks (hexablocks or tetrablocks)

Figure 6 shows the connection of hexablocks or tetrablocks in a two-deck pontoon carpet.

The claimed technical solution consists of hermetically made monoblocks 4 (Figure 3 and Figure 4), which are prisms at the base of which lies a triangle (OPTION 1) (Figure 3) or a square (OPTION 2) (Figure 3) which are connected respectively into hexablocks 18 or tetrablocks 19.

Monoblocks 4 are made of stainless steel or combined with aluminum and filled with rigid polyurethane foam 15 (Figure 3), while the surfaces that, when using the device in operation, will come into contact with an aggressive environment, are necessarily made of stainless metal.

In the factory, monoblocks 4 are connected together by welding (pos. 17) (Fig. 6), forming larger, transportable blocks, 19 or 18, which are connected to each other by means of plates 13, rivets 14 and bolts with nuts (Fig. 5), forming a two-deck pontoon carpet in the form of a multiblock 3 (Fig. 1 and Fig. 2) of the required diameter for the tank, additional tightness (except for welds 17) (Fig. 6) is ensured by sealant 16 (Fig. 5)

The pontoon is equipped with the necessary elements - a peripheral sealing shutter 10 (Fig. 4 and Fig. 5) made of isolon or polyurethane, seals 9, two racks 2 of the tank 1 (Fig. 1 and Fig. 2), safety valves 7, mounting hatches 6, drainage tubes (not shown) and support struts 8 (Fig.4 and Fig.6).

The peripheral seal 10 (shutter) is designed to seal the vapor-air volume in the gap between the tank wall and the central body of the pontoon.

The pontoon in its lower position in the absence of product in the tank or its level below the level of the floats rests on the bottom of the tank racks 8 (Figure 1 and Figure 2) the Height of the racks 8 provides the required distance from the bottom to the floor, necessary for placement in the lower part of the tank equipment (product inlet and outlet pipes, siphons, etc.) and routine maintenance with it.

The inventive device of the pontoon solves its tasks: due to the fact that the pontoon is assembled from monoblocks, which are unified structural elements, pontoons of any diameter can be assembled from them, this greatly simplifies the design of the pontoon; ensuring fire and explosion safety is due to the fact that the bottom surface of the pontoon in contact with the product is a flat surface, which constructively eliminates the formation of a gas-air cushion under the pontoon; ensuring unsinkability occurs due to the tight execution of monoblocks, and then due to the method of assembling monoblocks into larger elements due to the use of welding and then, when assembling the carpet, a sealant is used; the increase in its operational and technical characteristics occurs due to the execution of surfaces in contact with the aggressive environment of stainless steel; simplification of installation and maintenance is ensured by the fact that hexablocks and tetrablocks are assembled from monoblocks by means of overlays, rivets, bolts with nuts.

The inventive device pontoon consists of separate monoblocks, which makes it portable, simplifies assembly at the place of use

Claims (6)

1. Stainless pontoon, containing a carpet, consisting of separate sectors made of sheet material with a filler, a sealing shutter made of elastic polyurethane with a knot for its attachment to the carpet, support legs, mounting hatches, characterized in that the sectors are hexablocks assembled from airtight monoblocks, with each monoblock made in the form of a direct prism, at the base of which lies an equilateral triangle. 2. Pontoon according to claim 1, characterized in that the monoblocks are made of stainless steel or in combination stainless steel and aluminum and are assembled into hexablocks by welding. 3. The pontoon according to claim 1, characterized in that the pontoon carpet is assembled by connecting hexablocks using pads, rivets and bolts with nuts. 4. Stainless pontoon, containing a carpet, consisting of separate sectors made of sheet material with a filler, a sealing shutter made of flexible polyurethane with a knot for its attachment to the carpet, support legs, mounting hatches, characterized in that the sectors are tetrablocks assembled from sealed monoblocks interconnected by welding, with each monoblock made in the form of a direct prism, at the base of which lies a square. 5. Pontoon according to claim 4, characterized in that the monoblocks are made of stainless steel or in combination stainless steel and aluminum and are assembled into tetrablocks by welding. 6. The pontoon according to claim 4, characterized in that the pontoon carpet is assembled by connecting tetrablocks using pads, rivets and bolts with nuts.