ELECTRICAL CENTRIFUGAL GAS COMPRESSOR ECG – 7 – 250

USAGE AREAS

•  compression of natural gas within natural gas extraction units;

•  compression of crude-oil installation gas within crude-oil production units;

•  gas pressure rising set for high and low pressure ducts within TRANSGAZ DISTRIGAZ

WORKING PARAMETERS

•  compressed gas: natural gas (relative density around 0,61);

•  aspiration pressure denominated / maximum: 1,5 bars / 1,8 bars;

•  heading pressure: 7,5 bars;

•  aspiration temperature: 15 °C;

•  heading temperature: 40 – 50 0C (with cooling);

•  headed flow denominated / maximum : 275.000 Nm3/day / 375.000 Nm3/day;

•  carrying away : electric motor asynchronous with the rotor in by-pass 1200 kW, 6kV, 50 Hz, MIB Exd II BT4, 1500 rot/min;

•  specific electrical energy consumption: maximum 72 kW/1000 Nm3;

•  external sizes (Lxlxh): 5500x2500x2350 mm;

•  total weight : 27.000 daN.

PRODUCT COMPONENT

•  centrifugal compressors set and multiplication device;

•  electric drive motor;

•  coupling between the electric motor-multiplication device;

•  bed set ;

•  command system, adjustment, control (with micro chip);

•  tightening and oiling system /dam;

•  anti-explosive installation.

LAYOUT

•  covered space, bridge-crane at least 10 tf, lowest temperature 5 ° 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:

- cooling tower with an Dt minimum : 8 ° C;

- cooling water flow : 90 m3/h;

- maximum of water temperature entering in cooler : 30 ° C;

- cooling water pressure : 3,5 bar.

•  air for driving anti-pumping valve :

- class II conform STAS 8842;

- working pressure 4 ÷ 6 bars .

•  gas for driving air motor, auxiliary pump for oiling the valve :

- clean, dry gas;

- 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%.