One hundred vertical steel tanks. Vertical tanks for petroleum products. Assessment of the state of the anti-corrosion coating

Tank Design Plant StroyTechMash carries out the design and manufacture of vertical tanks RVS and RVS with a volume of 100 to 5000 cubic meters. at our own production facilities. We also carry out professional installation, insulation and application of an anti-corrosion coating on the inner and outer surfaces of vertical tanks of the RVS type.

Metal cylindrical tanks of vertical design are manufactured in accordance with the requirements of the Safety Rules PB 03-605-03 "Rules for the construction of vertical cylindrical steel tanks for oil and oil products" and GOST 31385-2008 and GOST 52910-2008 "Vertical cylindrical steel tanks for oil and oil products" .

Plant "StroyTehMash" manufactures metal structures of tanks by rolling. The panels of the wall and bottom are welded on the slipway and twisted on a rolling machine into a roll on metal carcass, inside which a spiral staircase is usually placed.

SPECIAL PRICE FOR VERTICAL TANKS - 82 rub/ton

PRODUCTION TIME - 10 working days

Tanks are manufactured in volumes from 10 cubic meters. (10 tons) up to 5000 cubic meters (5000 tons). Construction of vertical tanks with a volume of more than 5000 cubic meters. they are produced directly at their location using the sheet-by-sheet assembly method, since transportation is quite expensive and, depending on the distance, can cost more than the tank itself.

In the photo, the vertical tank RVS-2000 consists of two coils and a petal roof.



Characteristics of typical vertical tanks (RVS)

Designation

Volume, cu. m

Diameter, mm

Height, mm

Thickness

walls, mm

Number of belts, pcs.

Weight, kg

Surface area, sq. m.

outdoor

internal

4 8200
8500

Cylindrical vertical tanks are made of various steel grades depending on the purpose and the stored liquid. So for oil and oil products, vertical tanks are made of black steel grades ST3 and 09G2S. For drinking water, acids and alkalis, vertical tanks are made of stainless steel of various grades, including food grade stainless steel. The thickness of the metal walls for vertical tanks varies depending on their volume, the density of the stored product and the estimated service life, and ranges from 4mm. up to 12mm. For example, the estimated service life of a vertical tank RVS-400 for light oil products made of black steel grade ST3 with a thickness of 4 mm. is 12 years old. Each additional 2mm of metal thickness on the wall, bottom and roof of the tank adds 5 years to the estimated service life of the tanks. Although these figures are approximate and depend on the quality of maintenance of the vertical tank and its anti-corrosion coating.

Geography of deliveries of vertical RVS tanks

To date, the Plant of Reservoir Structures StroyTechMash has successfully manufactured and installed VST steel structures in many cities of Russia. This list includes: Moscow, Tver, St. Petersburg, Ryazan, Tula, Kaluga, Smolensk, Voronezh, Lipetsk, Tambov, Belgorod, Saratov, Krasnodar, Rostov-on-Don, Kazan, Nizhny Novgorod, Yaroslavl, Ulyanovsk, and other cities and regions of Russia. Thanks to the highly qualified specialists of our company, the quality of manufacturing and installation of vertical RVS tanks remains at a high level.

In the photo, the installation of a vertical tank RVS-1000 in Moscow

Tanks for oil and oil products are an indispensable and time-tested method of storing hydrocarbons in oil depots, refineries, chemical industry enterprises and as a reserve for diesel fuel in boilers and power plants.

For the central and southern regions of Russia, the tanks are made of steel of the St3ps5 grade, and for the northern regions, steel of the 09G2S grade is used.

The dimensions and weight of a vertical tank depend both on the volume and on the thickness of the sheet steel used in their manufacture.

After welding is completed, vertical tanks are primed and covered with anti-corrosion enamel to prevent rust both outside and inside.

As a rule, tanks intended for storing water and diesel fuel are insulated and heated. Insulation is made with thermal insulation made of mineral wool 50mm or 100mm thick. and sheathed on top of a galvanized sheet with a thickness of 0.5-1mm.

Heating of vertical tanks is carried out either with steam using a pipe coil device at the bottom of the tank, or with an electric heating cable mounted on the outside of the wall.

A special place in our production is occupied by RVS fire tanks designed for fire extinguishing systems for office, public and administrative buildings, trade and industrial complexes.




installation of RVS-200 under diesel fuel vertical tank RVS-200 installation vertical tank installation works



RVS-400 for Reutov heating system RVS400 tanks with insulation

Methods for the manufacture of RVS tanks

RVS type tanks are manufactured by two methods:

1. Rolling or an industrial manufacturing method involves welding the entire wall and the entire bottom of a vertical tank in the form of a panel spread on a slipway and further winding this web on a coil.

2. The sheet-by-sheet assembly method implies the assembly of the bottom and wall of the RVS tank at the place of its installation by sequentially building up each sheet of metal gradually from the bottom up. This method is used if the thickness of the metal sheets from which the tank is made exceeds 10 mm, as well as during the construction of vertical tanks with a volume of more than 5000 m3

In rare cases, in the manufacture of RVS tanks of non-standard design, a combination of the two methods listed above for the manufacture of vertical tanks is used in the manufacture.

It is worth noting that the rolled production of vertical tanks was developed and introduced from the mid-50s of the 20th century by the E.O. Paton Institute of Electric Welding. Academy of Sciences of Ukraine. This method was mastered, implemented and put on stream production with subsequent installation in all areas Soviet Union. As a rule, the bottom panel is rolled up into rolls of the same diameter as the walls, and wrapped around the central post supporting the roof of the vertical tank. The manufacture and RVS in this order was called the industrial method.

Design of vertical tanks

The design and engineering bureau of the Plant of Tank Designs StroyTechMash carries out the design of vertical tanks with a volume of 10 to 5000 m3. Standard designs for vertical tanks of the RVS type have existed since the 1970s and were developed by various design institutes of the USSR. But in standard projects nuances such as snow load, density of the stored product, seismic activity at the site of the future installation, service life and piping of the vertical tank. When designing tanks, the design bureau of the StroyTechMash Plant takes into account all of the above nuances, as well as the individual wishes of the Customer.

Installation of vertical tanks

The Plant of Tank Structures StroyTechMash has its own field team for the installation of vertical tanks. Installation of RVS tanks is carried out in any month of the year, but at an ambient temperature higher than minus 15C Celsius. This is due to the quality of the superimposed weld, at an ambient temperature below -15 ° C, the weld hardens too quickly and voids remain in it (the so-called fistulas). Installation work, for unwinding the wall and bottom from the reel, are carried out with the help of a crane and manual winches with a vertical tank volume of up to 2000 m3, and with a volume above, tractors are involved.

1. DEVELOPED CJSC Central Order of the Red Banner of Labor Research and Design Institute of Building Metal Structures. Melnikova (CJSC "TsNIIPSK named after Melnikov")

OAO Design Institute Neftespetsstroyproekt (OJSC PI Neftespetsstroyproekt)

FSUE PII "Fundamentproekt"

2. INTRODUCED by the organizations developing the standard

3. ADOPTED at the Scientific and Technical Council TsNIIPSK them. Melnikov dated December 23, 2004 with the participation of representatives of the organizations-developers of the standard

4. INTRODUCED for the first time

5. Development, approval, approval, publication (replication), updating (change or revision) and cancellation of this standard is carried out by developing organizations
Introduction

This standard was developed in accordance with the Federal Law "On Technical Regulation" No. 184-FZ, Federal Law No. 116-FZ of July 21, 1997 "On industrial safety hazardous production facilities” as amended on January 10, 2003 and is intended for design organizations, tank manufacturers and installation organizations.

The standard can be applied by organizations that perform tank design work if these organizations have certificates of conformity issued by the Certification Body in the voluntary certification system created by the organizations developing the standard.

Developer organizations do not assume any responsibility for the use of this standard by organizations that do not have certificates of conformity.

The need to develop a standard is dictated by the fact that the experience gained by organizations that develop the standard, as well as domestic design organizations, is contained in several dozen disparate regulatory documents (SNiP, TU, RD, VSN, departmental rules, etc.), partially outdated and not covering the whole problem of reservoir construction.

The main goal of the standard is to create a modern regulatory framework on the calculation and design of tanks, as well as improving their durability.

When designing tanks intended for operation in Russia, it is allowed to use foreign standards along with the development of special technical conditions.

When developing the standard, the following were analyzed and taken into account:

Legislative, legal and normative-technical documentation on the issues of ensuring industrial safety, designing the manufacture and installation of tanks;

Practical experience in the design, installation and operation of tanks;

Results of surveys of tank farms;

Some foreign standards;

Proposals of enterprises, organizations, associations and specialists.

Approved and put into effect:

Vertical tanks RVS-100000 m 3 are applied to storage of light and dark oil products at the enterprises of extraction and transportation of oil.

GK Gazovik offers the following versions of tanks with a volume of 100,000 m 3:

  • RVSPK-100000 m 3 with a floating roof
  • RVSP-100000 m 3 with a pontoon

Design, manufacture and operation of vertical cylindrical tanks RVS with a volume of 100,000 m 3 is regulated by the following state standards:

  • GOST 31385-2008 "Vertical cylindrical steel tanks for oil and oil products. General specifications"
  • STO 0048-2005 "Vertical cylindrical steel tanks for storing liquid products. Design rules"
  • STO-SA-03-002-2009 "Rules for the design, manufacture and installation of vertical cylindrical steel tanks for oil and oil products"

In accordance with the above standards, RVS tanks can be used with working media with a density of up to 1015 kg / m 3 and at a product temperature from -65ºС to +260ºС. In addition, the RVS-100000 has the following requirements:

  • internal overpressure must not exceed 5.0 kPa
  • vacuum - no more than 0.5 kPa
  • relative rarefaction in the gas space should not be more than 0.25 kPa
  • RVS-100000 are not intended for storage of aggressive chemical products
  • it is possible to use RVS for storage of reservoir and fire water, oily wastewater, mineral products and potable water (with proper internal coating)
  • seismicity of the area of ​​operation - up to 9 points

It is also possible to use tanks for non-standard purposes, but at the same time, the calculation of steel, RVS structures, processing of internal and external surfaces, as well as the selection of the necessary technological equipment must be carried out in accordance with Russian standards and meet safety requirements.

Questionnaire for the supply of vertical RVS tanks
,

RVS-100000 m 3 design

Drawing RVS-100000

The main structures of vertical tanks with a volume of 100,000 m 3 are:

  • RVS-100000 wall
  • RVS-100000 bottom
  • roof RVS-100000

To auxiliary structures relate:

  • stairs and roof railings
  • stairs to access the floating roof
  • platform for mounting the foam generator
  • lightning protection and grounding systems

The vertical tank RVS-100000 is a cylindrical wall installed and welded to the bottom, as well as a floating roof. Due to the large dimensions, RVS-100000 wall is made by sheet method: the tank wall is delivered to the place of installation in the form of separate rectangular steel sheets of the required size, each rolled; at the installation site staged assembly and welding of wall elements. The tank wall has several belts, the number of which depends on the width of the wall element.

RVS-100000 bottom is a conical structure consisting of a central part and thickened annular edges with a slope of 1:100, which, during installation, go outside the wall boundaries.

RVS-100000 m 3 operated from floating double deck roof due to the large wall diameter. Floating roofs are more fire and explosion safe (since there is no gas space between the product surface and the lower roof deck), reduce evaporation losses of the stored product, and also contribute to lower corrosion wear of the upper chords of the tank. The double structure of the floating roof is a single metal structure consisting of the lower and upper flooring, interconnected by ribs forming sealed compartments. The double roof can be supplied as separate radial and annular compartments, which are interconnected on site, as well as prefabricated radial boxes to reduce installation time.

Also tanks RVS-100000 m 3 can be supplied with pontoon.

External and internal surfaces are treated with anti-corrosion substances (enamel, primer), which contribute to long service life and reduce the rate of corrosion of metal structures.

Overall dimensions RVS-100000 m 3

  • height - 18 m
  • diameter - 85.3 m
  • area S of the product mirror - 5715 m 2
  • perimeter - 268 m

Additional equipment RVS-100000 m 3

For safe operation tanks, the necessary tank equipment is selected separately: breathing valves, flame arresters, foam generators, filling and drain fittings, instrumentation, etc.

Information for Customers

Specialists of the Gazovik Group of Companies will calculate and select for you the optimal configuration of the vertical steel RVS tank with tank equipment according to the completed Questionnaire for the RVS.

To order and buy the vertical steel tank RVS-100000 m³, you need to contact us via the free hotline 8-800-555-43-93 or e-mail [email protected]

We will also select for you the fastest delivery of a vertical tank by rail or road to any city in Russia (Moscow, Yakutsk, Irkutsk, Surgut, Novosibirsk, Vladivostok, Murmansk, Kazan) and to the CIS countries (Kazakhstan, Ukraine, Belarus).