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1.3.1.1 Centrifugal air compressor


ELECTRICAL CENTRIFUGAL AIR COMPRESSOR
CCAE 21-300 

USAGE AREAS

- Supplies industrial compressed air without oil and mechanical impurities
- Supplies compressed air needed for extraction units of crude oil that use below ground combustion


WORKING PARAMETERS

· pressure gas: atmospheric air;
· aspiration pressure: 1,013 bars;
· heading pressure: 14-21 bars;
· aspiration temperature: 15 0C;
· heading temperature: 40 – 50 0C (with cooling);
· heading output 12.000 Nm3/h;
· characteristics of heading air: without oil and mechanical impurities , filtration precision 5μm
· carrying away : electric motor asynchronous with the rotor in by-pass 2000 kW, 6kV, 50 Hz, MIB, 1500 rot/min, IP 23, air cooled;
· external sizes (Lxlxh): 6150x2450x2450 mm;
· total weight: 30.000 daN.

PRODUCT COMPONENT

· multiplication set, 5 centrifugal compression steps and intermediate coolers;
· electric drive motor;
· coupling between the electric motor-multiplication set;
· bed set;
· control gates set, final air cooler, connection ducts, condense separators
· command system, adjustment, control (with micro chip);
· anti-pumping installation;
· oiling system ;
· tightening system.

LAYOUT

· covered space, bridge-crane at least 10 tf, lowest temperature 5 0 C ;
· foundation: size about 5500x2200x2000 mm insulated.

UTILITIES

· high voltage power line 6 kV , with automated starting transformer;
· low voltage power line 380 V – consumption minimum/maximum 1,5/16,5 kW;
· water cooling circuit:
o cooling tower with an Dt minimum : 8 0 C;
o cooling water flow : 90 m3/h;
o maximum of water temperature entering in cooler : 30 0 C;
o cooling water pressure : 3,5 bar.
· air for driving anti-pumping valve :
o class II conform STAS 8842;
o working pressure 4 ÷ 6 bars .
· gas for driving air motor, auxiliary pump for oiling the valve :
o clean, dry gas;
o pressure 6 ÷ 8 bars.
FUNCTIONING RESOURCES
· between over-hauling: 32.000 hours;
· total resource: 4 over-hauling.
WARRANTIES
· 8000 functioning hours, but no more than 18 months from delivery ;
· spare parts, available to buy, at least 15 years from delivery ;
· post warranty service available on contract .

REFFERRAL

- the ECG-7-250 set has been validated in in April 1999, in the S.P.Ţicleni unit– of PETROM Group, totaling 12,000 functioning hours, with an usage percentage of 92%.


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