RU2424967C1 - Soft polymer container for water and oil products - Google Patents

Abstract

FIELD: transport, package. ^ SUBSTANCE: invention relates to large containers, particularly, to flexible]e tanks for storage and transportation of fluid, including oil products. Soft tank comprises closed polymer envelopment with faces, coat and bottom, as well as fill-and-drain branch pipes. Proposed tank differs from known designs in that closed envelopment is made up of two envelopments with tight chamber there between and interconnected by webs. Note also that air hose is brought from said tight chamber outside the tank to allow forcing air into said chamber to inflate it. Note that inner envelopment is made from PVC and outer envelopment is made from polyurethane at 50%-to-50% ratio. ^ EFFECT: fast erection, ease of use, higher reliability. ^ 2 dwg

Description

The invention relates to large containers, in particular to flexible (soft) tanks intended for storage and transportation of liquids, including petroleum products, and can be used in all sectors of the economy.

Various liquid tanks are known in the art. For example, a fluid reservoir (patent RU 2134225) is known, containing an elastic closed shell consisting of upper and lower panels, on the top of which there is a manhole cover with a filler neck and a device inside the shell for increasing the drainage completeness with flow openings, characterized the fact that the device for completeness of discharge is made in the form of a spatial rigid structure, fixed along the perimeter of the manhole and having a diametrical rigid vertical partition, while The exact dimensions of the device for complete drainage are determined by the following relationships:

D ′ = (0.8 ... 2.2) D;

M = (0.8 ... 2.5) S;

B = (0.2 ... 0.4) d,

where D ′ is the outer diameter of the device for completeness of discharge;

D is the outer diameter of the mounting ring of the manhole cover;

M - the total area of the flowing holes in the side walls of the device for complete drainage

S is the cross-sectional area of the filler neck;

In - the height of the diametric rigid vertical partitions under the filling neck;

d is the inner diameter of the filler neck.

Also known is a mobile elastic tank for petroleum products (patent RU 2304553), containing a pallet, on which a closed shell consisting of a fuel-resistant, light-shielding and power layers and having a drain filler on the upper surface, characterized in that the fuel-resistant layer is made of two layers of polymeric material of thickness 80-150 microns with a content not exceeding 0.3 kg / m ^2, breaking load of not less than 200 N, brittleness temperature of at least minus 50 ° C, the maximum temperature stored nefteprod CTA is not higher than 70 ° C, a permeability of not more than 10 g / m ² day, light protective layer - of conductive sazhenapolnennoy polyethylene film of thickness 80-150 microns, power layer is placed on the outside of the tank and made of one or two layers of polypropylene fabric folded with surface with a density of 200 ± 20 g / m ² and the number of threads per 10 cm of fabric along the warp and weft 54 ± 2 and 50 ± 2, respectively, while the inside of the pallet is made of a material identical to the material of the fuel-resistant layer and represents a closed airtight cavity filled with air or another agent, and the outer one is made of a material identical to the material of the power layer, the side walls of the outer part of the pallet have a height equal to at least 0.7 of the height of the filled elastic reservoir and are located relative to the bottom at an angle of 65-75 °.

Also known is a soft reservoir for liquids (patent SU 1559617), comprising a closed shell with ends, a coating and a bottom, drainage nozzles located at one of the ends, a heating device with a unit for folding the tank into a roll made in the form of flexible elements, characterized in that , in order to reduce the time of liquid unloading while reducing labor costs, it is equipped with an elastic partition located above the bottom with the formation of a cavity for the coolant, flexible elements are made of material with eff including shape memory have different lengths and mounted in the partition, wherein the initial portion of each of the flexible elements located at the same distance from the end face, located opposite slivonalivnym nozzles. This solution is chosen as a prototype.

All known solutions of soft tanks have disadvantages associated with the time-consuming process of putting them into operation.

As a rule, soft tanks during transportation are rolled up or in an envelope. When unfolding the tank at the place of storage, the labor of at least two specialists is used, who carefully unfold the packaging and straighten the tank on a plane.

But even after this, in the process of filling the product, the tank takes a different position and shape, different from that which was performed in the process of laying out the tank in preparation for filling it with liquid. Moreover, after filling the product, the tank can no longer be moved from its position if it was chosen unsuccessfully (for example, a slight inclination of the tank formed or during filling it crawled beyond the dimensions of the fenced area, for example, onto an access road). In addition, drain and filler pipes may not be located well. It is not always possible to see this before filling the tank, and even if it is possible, the shift of the tank is dangerous because of the possibility of tearing the protective shell about any protrusion on the earth's surface.

Thus, an extremely important task is not only the quick process of laying out the tank after transportation, but also knowing the position and inclination of what the tank will occupy after filling and, if necessary, moving the tank until it is full without risking damage to the containment. Currently, none of the known solutions can solve this problem.

The technical result of this invention is the ability to quickly lay out the tank and prepare it for refueling with just 1 person and not necessarily a specialist, as well as the ability to pre-check the position of the tank at the storage location on a slope, drain and filling pipes with the ability to move the tank from its position to filling without risk of damage to the containment.

The claimed technical result is achieved due to the fact that the soft reservoir for water and oil products containing a closed polymer shell with ends, coating and bottom, drainage nozzles, characterized in that the closed shell is double with a sealed cavity between the shells, and adjacent shells inside the cavity are connected jumpers, and from the cavity to the outside of the tank an air hose is hermetically connected with the function of pumping air through the cavity through it, and the inner shell of the tank is made of PVC and oliuretana (PU), the ratio of which is selected based on the share 50% to 50% of the total material.

Brief Description of the Drawings

Figure 1 shows the design of a soft reservoir, where 1 is a conventional soft reservoir based on a polymer coating (PVC, polyurethane, a mixture of PVC and polyurethane in different proportions), 2 - inlets (filling nozzles), 3 - outlet (drain pipe), 4 - pump, 5 - air hose, 6 - second sealed shell, 7 - jumpers connecting the outer and inner shells of the tank, 8 - formed a sealed cavity between the shells.

Figure 2 shows an example of operational deployment of the tank before filling, where 9 is the tank, 10 is a contact wire for the electric pump connected to the power socket in the car - 11.

Soft tanks can be made of a single-layer polymer material (depending on the purpose) using a double seam. They have a pillow shape, can be placed on an unprepared surface.

The principle of manufacture of the tank - individual sheets of polymer material are welded together to form a rectangular container. When filling, it takes the form of a pillow. All seams are double.

A second outer shell is formed around the first in a similar way.

Production material of the inner shell of the tank: polymeric material PVC with the addition of polyurethane granules based on the ratio of 50% PVC, 50% polyurethane (PU), which allows the tank to be used both for industrial water and for storage of low-octane oil products (oil, diesel, oils). This material in terms of strength characteristics is not inferior to neither PU nor PVC and has a low weight.

The material for the manufacture of the outer shell is not fundamental and can be both from PVC and PU, and from a mixture thereof.

The process of deployment of the tank may be, for example, the following (see Figure 1, Figure 2).

An electric pump (4) is connected to the air hose (5), which is fed via a wire (10) from the vehicle’s cigarette lighter (11), on which the tank (9) was delivered to its destination. Turn on the electric pump (4) and pump the cavity (8) between the shells (1) and (6) of the tank with air. Air, filling the shell and by restricting with the jumpers (7) the inflation of the outer shell, fills the cavity (8), and the tank automatically, without assistance, unfolds and assumes the form that it will have when completely filled with liquid.

Then the tank is checked by eye or by level relative to the horizontal position it occupies, and if there are significant slopes, then the tank is shifted, eliminating them. If an unsuccessful location of the tank or discharge pipes (2, 3) is detected on the storage site, it can also be moved. The process of moving an inflated tank is easier and simpler, in comparison with moving empty.

Before or in the process of filling the tank with liquid, air from the cavity (8) is lowered through the hose (5).

A double shell with an air cavity allows thus to quickly deploy the tank from the roll even by one person, enhances the protection of the inner shell from damage, allows to fill the tank with a horizontal plane and move it to a more convenient place before filling the tank. In the process of moving the tank, the risk of breakthrough of the inner shell is small, since it is protected by an external and air gap in the cavity.

Claims (1)

A soft reservoir for water and oil products containing a closed polymer shell with ends, coating and bottom, drainage nozzles, characterized in that the closed shell is double with a sealed cavity between the shells, and adjacent shells inside the cavity are connected by jumpers, and from the cavity outside the tank is hermetically connected an air hose with the function of pumping air through it with cavity air, and the inner shell of the tank is made of PVC and polyurethane (PU), the ratio of which is selected based on the proportion of 50% n and 50% of the total substance.

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