Surgil ESIA Report - Volume III - EKN

“O’ZLITINEFTGAZ” PC
PFS “Surgil field complex costruction with valuable
components retrieval”
There are designed following systems of water supply on the CGTUarea:
- household;
- fireproof;
- industrial;
- feeding water-supply line.
There are designed following constructions for needs of firefighting:
- pump station of industrial-fire-prevention purpose;
- tanks of industrial-fire-prevention water-supply W = 300m 3 (2pcs.);
- a premise for monoblock pump with the frothing agent tanks placed in it,
monoblock pump ММ-27/100 and the dry powder fire extinguisher.
Water-supply for firefighting makes 566m 3 . Taking into account a water-supply for
industrial needs and area seismicity there are accepted two tanks W = 300m 3 for installation
by t.r.901-4-78p.84.
Firefighting pump station is intended for water delivery from water-supply tanks in
the network of fireproof water-supply line.
Feeding water-supply line is intended for water delivery in tanks of industrial-fireprevention
purpose. Feeding water-supply line is designed from pipes PE63 SDR17.6-
110х6.3 in accordance with GOST 18599-01 (two lines) and is installed on 1.2m depth from
planned earth marks (2 lines).
There is provided flow record device in each pump house over artesian well.
The system of industrial water-supply line is intended for washing of processing
facilities. The network is made from steel electric-welded pipes in accordance with GOST
10704-91 by diameter 57х3.5mm with the reinforced anticorrosive isolation and installed on
1.2m depth from planned earth marks. There are provided watering taps on the network by
diameter of 50mm.
System of fireproof water-supply line is designed in form of ring. There are installed
fire hydrants and wedge tubes on the network. Arrangement of the fire hydrants should
provide extinguishing of any buildings and constructions point by two streams.
There is installed manually operated gate valve in the well of the branch from water
supply system to wedge tube, which hand wheel is taken out manhole cover. It is installed
outlet valve in front of gate valve for bleeding of dry piped site after a fire.
Cooling of tanks during fire is made by the fire-hose barrels attached by fire hoses to
fire hydrants on the network of fireproof water-supply line.
The network is made from steel electrical-welded pipes in accordance with GOST
10704-91 by diameter 159х4.5 and 108х4mm with the reinforced anticorrosive isolation and
installed on 1.2m depth from planned earth marks.
Volume 2. Part 1. EIS Project for Surgil field construction
59