21 July 2016

Comprehensive upgrade of Central CHPP in St. Petersburg is one of the priority projects of TGC-1. As part of this upgrade at the site of power plant №1 (PP-1) there is being created a modern GTU-CHPP on the basis of two power units. Each power unit consists of a gas turbine unit Siemens SGT-800 and a hot-water waste-heat boiler.



Total electrical capacity of GTU-CHPP is 100 MW, thermal capacity is 100 Gcal / h. Start-up of highly efficient gas turbines will allow close a number of old boilers in the Northern Capital. New generation equipment will raise the quality and reliability of power supply of the central part of the city and will significantly reduce fuel consumption per unit of electricity and heat generation.

Purification, compressing and supply fuel gas to the turbines of GTU-CHPP under operating pressure of 3.3 MPa will be performed by the special process equipment of supply of LLC Sphere: gas treatment unit and booster compressor station (BCS) of Enerproject.

BCS is composed of three compressor units (CU) of type EGSI-S-330/1800WA with capacity of 2.655 kg / s each. All CUs are placed in separate weatherproof shelters; they are equipped with life support systems (heating, ventilation and lighting) and safety systems (fire detection and fire fighting, gas detection).



CUs are equipped with individual ACS and group system of automated control with the function of transmitting data to APCS of upper level, as well as with two-level systems of capacity control (bypass line and spool regulation).

Gas treatment unit and booster compressor station were installed at the facility; preparation is underway for commissioning. Currently there have been completed adjustment and 24-hour individual testing of BCS with check of all the elements and systems. There is checked the functioning of process, compressor and electrical equipment and ACS.

The pre-starting stage will be completed through operability verification in the course of 72-hour comprehensive test run of the GTU-CHPP. Commissioning of the gas treatment system is performed by the company ENERGAS – official representative of Enerproject SA in Russia and CIS countries.

REFERENCE. Central CHPP combines the oldest stations of St. Petersburg. CHPP provides electricity and heat to industrial enterprises, residential and public buildings of the Central, Moscow, Frunze and Admiralties districts of the city. In the service area of CHPP – about 500 thousand people.

Previous news

Back to the list

Next news