Metal tanks for petroleum products |
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IPC classes for russian patent Metal tanks for petroleum products (RU 2228416):
 
 The device for repair tank / 2196210
The invention relates to the construction and can be advantageously used to eliminate rainfall ground tanks that are installed on low marshy ground
 Aluminum mesh dome / 2190739
The invention relates to the field of construction, namely, to designs of metal mesh domes cylindrical tanks
 The storage tank for petroleum products / 2166594
The invention relates to the construction, in particular for vertical cylindrical tanks
 The amplification device of the hull of a tank for storage of liquid cargo / 2146324
The invention relates to the construction, in particular to a device for the amplification of tanks
 The method of construction of containers for collection and storage of oil and oil products / 2143537
The invention relates to the field of pipeline transportation and is intended for storage of oil and petroleum products during the emergency or routine repair work on pipelines
 A reservoir for storage of liquid cargo / 2121048
The invention relates to the field of construction, in particular, to structures of tanks
 A reservoir for liquid cargo / 2099497
The invention relates to petroleum, chemical, food and other industries, namely the equipment of tank structures
 Device for mounting a vertical cylindrical tanks / 2079621
The invention relates to a device for mounting a vertical metal tanks of uniform metal blanks, were not subjected to ruanruan and can be used, for example, for the installation of vertical cylindrical tanks batteries for hot water high capacity
 The method of construction of tank foundation / 2209884
The invention relates to the construction and can be used in the construction of reservoirs on strata heavily compressible soils
 The foundation of the tank / 2209883
The invention relates to the construction and can be used in the construction of the tanks on soft soils in areas of higher seismicity
 The foundation isothermal tank / 2204655
The invention relates to the construction and can be used when applying Foundation of reservoirs for liquefied gases at low temperatures
 The foundation for a cylindrical tank / 2203361
The invention relates to the construction, in particular to the foundations of large tanks
 The base steel vertical tank / 2187599
The invention relates to the construction and can be used in the construction of tank farms for storage of liquid products
 Fencing tank / 2178482
The invention relates to the field of construction and can be used in the device walls fencing during the construction of the tank on a solid, for example, half-rock soils
 Device for reducing deformation of the tank walls and fences / 2171338
The invention relates to the field of construction, namely, the foundations of the tanks walls and fences
 The reference design, team design and method of construction of modular design / 2032790
The invention relates to industrial and civil construction and can be effectively used in the construction of roads, airfields, foundations for various structures, as well as in the construction of any structures on soft soils
 Reservoir foundation / 2247193
Foundation includes ring-shaped foundation member located under reservoir walls and base formed as a row of piles driven in ground and connected by ring-shaped end cross having cuts. Reservoir bottom center includes plate with levers located in ring-shaped end cross cuts and connected to ring-shaped foundation member by rods.
 Reservoir construction method / 2264504
Method involves preparing building site and ground base; mounting reservoir and performing hydraulic tests thereof. Reservoir mounting is performed in several stages. At the first stage reservoir is built without stationary metal bottom, has projected edges and is provided with temporary flexible bottom air-tightly pressed against projected edges with the use of pneumatic system. After that preliminary hydraulic tests are performed by filling reservoir with water. At the second stage temporary flexible bottom is demounted after complete ground base compaction, deformed ground base is smoothed up to reaching design mark by filling the formed cavity with filling material. Then waterproofing material is applied to smoothed base, permanent metal bottom is formed and the ready vessel is subjected to final hydraulic tests.
 Hazardous product storage reservoir foundation / 2270296
Foundation comprises earth-fill pad, water-tight layer arranged below the pad, drainage system consisted of a number of pipelines arranged in earth-fill pad body. Trench filled with interchangeable filtering material is dug out along foundation perimeter. Watertight layer is inclined under the earth-fill pad and has upper end of hollow square shape so that the hollow square is inclined towards straight channel adapted to accumulate rain water and located in lower pad part. The straight channel is communicated with drainage vessel. Well with controlled gate is formed in front of the drainage vessel. Drainage system pipelines are formed of perforated pipelines communicated one with another and arranged along a circle and inside it.
 Foundation for reservoir to be built in seismic zone / 2276710
Foundation includes mattress panel, which connects vertical and inclined piles. Vertical piles are uniformly distributed along large circle at mattress edge and along minor circle defined by mattress center. Inclined piles are grouped in pairs and arranged in vertical plane one above another. Each pair of inclined piles extending from mattress edge is connected with each vertical pile of minor circle in lower part thereof. Each pair of inclined piles extending from mattress center is connected with vertical pile of large circle in lower part thereof.
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The invention relates to the field of construction, in particular to the structures of vertical cylindrical tanks. Metal tank for petroleum products include roof, vertical wall, okrika, annular corrugation, flat bottom, pile Foundation with a circular raft. What's new is that the bottom of the tank and trunks piles are hollow and providing the possibility of movement, and the working cavity in the bottom and piles filled with incompressible liquid, and the cavities are interconnected by a flexible incompressible pipelines equipped with shut-off valves, ensuring the passage of the working fluid in one direction only - from the cavity bottom in the working cavity of the pile. The technical result of the invention is to improve the overall operational reliability of the tank with a maximum reduction of bending moments edge effect and additional stresses in the vertical wall of the tank during operation of the facility in terms of weak soils. 2 Il.
The invention relates to the field of construction, in particular to the structures of vertical cylindrical tanks.
Known vertical cylindrical is true bottoms [1].
The disadvantage of this tank is the possibility of a vertical wall and the bottom extra large stresses caused by uneven deformation of the subsoil under the tank, which reduces the overall reliability of the structure.
The closest technical solution is the vertical metal tank, including the roof, pile Foundation with the annular pile cap, flat bottom with fringes and rigidly connected to the fringes of the vertical wall, the anchoring devices mounted in the base, and stretch marks [2].
The disadvantage of this technical solution are low overall strength and stability of the tank due to the fact that in the course of its erection it is impossible to achieve uniform distribution of efforts in numerous stretch between the anchors and the bottom, which leads to high local stresses of the material of the bottom in some places mates with fringes. In addition, in this design there is a local high voltage in the vertical wall at fixing her stretch marks and at the same time in the stretching of the entire system stretching along the length of the due processes of creep and R inevitable collapse of the coupling zone bottoms with fringes even in the case of an absolutely uniform precipitation annular pile Foundation.
The aim of the invention is to improve the overall operational reliability of the tank with a maximum reduction of bending moments edge effect and additional stresses in the vertical wall of the tank during operation of the facility in terms of weak soils.
This objective is achieved in that the metal tank for petroleum products, including roof, vertical wall, okrika, annular corrugation, flat bottom and pile Foundation with the annular pile cap skonstruiroval so that the bottom of the tank and trunks piles are hollow and providing the possibility of deformation, and the working cavity in the bottom and in piles filled with incompressible fluid. Moreover, the cavities are interconnected by a flexible incompressible pipelines equipped with shut-off valves, ensuring the passage of the working fluid in one direction only - from the cavity bottom in the working cavity of the piles.
In Fig.1 shows a structural diagram of a metal tank in poluzabroshennoy condition;
in Fig.2 shows the structural diagram of a metal tank in the maximum loaded condition with the creation of the full prestress of pile foundations regarding okrugaushih alzieu bumps 4, hollow bottom 5, pile Foundation 6 with the annular pile cap 7. While the bottom of the tank 5 and working trunks piles 6 are hollow and filled with incompressible liquid 8 with the possibility of deformation of these bearing elements in the direction of compression of the bottom 5 and in the direction of stretching at the pile 6. Working cavity bottom and piles connected by a flexible incompressible pipe 9, is equipped with a shutoff valve 10 for the passage of working fluid from the bottom 5 to the piles 6.
Metal tank for petroleum products is as follows. The tank at half height is filled with oil, and the bottom will occupy the position shown in Fig.1. After stabilization of soil sediment under the bottom of the working cavity of the bottom and the piles are filled with an incompressible degassed liquid under a pressure of about 0.1 to 0.12 MPa, and only after that the reservoir is filled up to full volume, which will lead to full preduprezheniyu annular pile Foundation is relatively weak ambient water-saturated soil, because the pressure on the bottom from the hydrostatic column of oil a height of 15 m (standard tank) will be equal to about 0.13 MPa.
In the result of the prestress of the piles relative to the NTA, or in an area with less intense condition, and also increase all physical-mechanical characteristics of the soil increased the carrying capacity of the proposed circular pile Foundation in comparison with typical ring driven pile Foundation. The latter is explained by the fact that the carrying capacity of "hanging" pile foundations 70-80% due to the amount of tangential forces on the lateral surface of the pile.
In practice, the carrying capacity of these piles depends on the area of the side surface (A), the intensity of the normal stress ( or pressure prestress on the side of the pile, equal in this case 0,13 MPa, and the coefficient of friction =tg that is reflected in the formula below:
N=A··tg,
where- the angle of internal friction of the soil,
 =·tg- shear stress on the lateral surface of the pile, preventing the immersion consider piles into the ground.
At a depth of, for example, 5 m, vertical pressure of its own weight the sandy soil does not p is related vertical pressure - depending on the coefficient of lateral earth pressure determined as a function of Poisson's ratio, sandy soil, in particular, the Poisson's ratio of sand equal to 0.2, and the coefficient of lateral earth pressure can be calculated by the formula:
In the normal horizontal pressure of its own weight of the sandy ground, squeezing the barrel standard piles, under typical conditions is equal to
x=z· =0,09 0,25=0,0225 MPa,
which is considerably less than in the proposed method, the artificial increase in horizontal pressure compression of the trunk hollow piles to 0.13 MPa. Specified the prestress side surface of the piles relative to the surrounding ground several times will increase the carrying capacity of the entire annular pile Foundation with a simultaneous increase of the physical-mechanical characteristics of weak waterlogged soil due to its compression and partial dewatering in the migration of moisture into the least loaded area of the soil Foundation.
In addition, the proposed solution allows you to maintain total stress sostenibilita surrounding soil reduces the pressure in the working pile shaft due to the increase of the diameter and volume of the working cavity of the pile. At the same time due to the pressure drop in the cavity of the bottom and in the cavity of the pile shutoff valve opens (as in the present case, the pressure in the cavity of the bottom when fully filled tank is always greater than in the cavity of the pile), and the fluid moves under pressure from the cavity plate in the cavity of the pile. This will lead to the alignment of the normal lateral pressure in the piles, and the whole system will take the original equilibrium state.
It should be noted that this process takes place over time very slowly, so any tangible absolute or uneven relative deformations considered in the reservoir will not occur.
After emptying the tank from the oil ring, the pile Foundation will remain under specified pressure prestress equal to 0.13 MPa, as shut-off valves 10 will not allow fluid from the cavity piles to jump into the cavity of the bottom that allows you to maintain the carrying capacity of the system unchanged.
The presence of annular corrugations 4 of the hollow plate allows the plate to freely deform in the radial and vertical direction without overvoltage elements of the pair of vertical walls 2 with fringes 3 and fringes with a bottom 5.
Pre condition which is automatically maintained at the current level. With increasing time of operation facilities surrounding soil and will work harden by all General system tank-soil" goes into more stable and reliable state.
Sources of information
1. Auth. St. USSR №1263787, class E 04 H 7/00. Vertical cylindrical tank, 1982.
2. Auth. St. USSR №907199, class E 04 H 7/02. Vertical cylindrical tank, 1982.
Claims Metal tanks for petroleum products, including roof, vertical wall, okrika, annular corrugation, flat bottom, pile Foundation with a circular grating, characterized in that the bottom of the tank and trunks piles are hollow and providing the possibility of movement, and the working cavity in the bottom and piles filled with incompressible liquid, and the cavities are interconnected by a flexible incompressible pipelines equipped with shut-off valves, ensuring the passage of the working fluid in one direction only - from the cavity bottom in the working cavity of the pile.
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