Arsenal, Automated Gas Distribution Packages (AGRS)

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Arsenal, Automated Gas Distribution Packages (AGRS)
 

Spec. TU 3647-037-00153229-2014

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+7.4872.74.00.10

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  Arsenal, Automated Gas Distribution Packages (AGRS)
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Automated Gas Distribution Packages (AGRS) are designed to provide gas to consumers at specified quality, pressure, treatment quality and odorizing. Subject packages are installed at branch lines of main and field gas pipelines to provide gas for cities and smaller settlements, industrial and domestic facilities. AGRS packages may run with natural, associated petroleum and synthetic gas.

AGRS package kind of products is comprised of single or several prefabricated skids enabling prompt installation in the field. AGRSes are pre-set for specified technical performance (inlet and outlet gas pressure, gas flow and outlet temperature) tailored for Customer needs.

AGRS packages are engineered and manufactures based on the requirements of  Gazprom Industry Standard STO 2-3.5-051-2006 Process Engineering Norms for Main Gas Pipelines, SNiP 2.05.06-85* (construction regulation), internal guidelines VRD 39-1.10-069-2002, Temporary Specifications for Gazprom’s Gas Distribution Units (GRS), Gazprom Industry Standard STO 5.37-2011 Uniform Specifications for the Equipment of Natural Gas Flow and Quantity Measuring Equipment Used by Gazprom, Gazprom Industry Standard STO 2-1.15-205-2008 Metrological Coverage «During the Engineering of Gas Industry Sites and etc. applicable norms and regulations.

We use the equipment allowed for operation at Customer sites in our AGRS packages per customer specifications. Colour codes used for overground metalworks, process equipment and buildings/ structures are adjusted to Customer corporate standards.

Arsenal AGRS provides:

  • gas treatment to remove condensate moisture and mechanical particles followed by automatic condensate drain;
  • gas preheating prior to pressure reduction;
  • gas pressure reduction form high to set lower, maintaining it at given accuracy during inlet gas pressure or flow fluctuations;
  • gas flow rate control with multi daily recording throughout the outlet pressure range;
  • recording and transmission of main process parameters (inlet and outlet gas pressure and temperature);
  • gas odorizing proportional to gas flow with odorant intake dosed automatically from the stationary storage tank;
  • automatic control over the operation condition for skid-mounted process equipment;
  • remote emergency alarms in case of issues with operation conditions;
  • emergency UPS power supply from accumulator batteries;
  • availability for manual control.

AGRS packages allow connection to outdoor condensate storage tanks (can also be added to scope upon request).

To prevent hydrating, AGRS packages include integrate mini-boiler with heat exchanger, at least two heaters and redundant circulation pumps. Boilers are sized to the flow and capacity of gas distribution skid to ensure set temperature is maintained at minimum and maximum gas flows. The heating system includes two circuits: first one heats gas and maintains pre-set AGRS outlet gas temperature automatically, while the second one runs for indoor heating.

Fully prefabricated heating and ventilation systems are included in scope, ready for operation. Purge connections are included to purge the AGRS piping with nitrogen during the repair. AGRS packages may be urged from on-skid nitrogen bottles rack or from the external source.

Factor
Figure
Inlet gas pressure, MPa
1.2 …10
Outlet gas pressure, MPa
0.1 … 1.2*
Flow, ths. nm3/hr
1 … 1 000**
Maximum inlet diameter, mm
700
Maximum outlet diameter, mm
1000
Number of outlet connections, EA
up to 4
Inlet gas temperature, °С
minus 20 … 45
Outlet gas temperature, °С
0 … 45
Seismicity
up to 9
Climatic performance per GOST 15150-69
U1, UKhL1, KhL1, U2, T1)
(CyrillicУ1, УХЛ1, ХЛ1, У2, Т1)
Design service life, years
30 (and above)
Design
Single skid, containerized or custom engineering
AGRS maintenance options
  • centralized
  • occasional
  • ttendance
  • watch-basis

* Available for customization for each connection upon request
** Total for all connections