General Information about Gas Compressor Stations
Five compressor stations were designed along the Polish stretch of the transit gas pipeline in order to provide the gas flow required by the contracts. The flow is forced by compressing the gas by means of turbine-driven compressor units in the compressor stations to compensate pressure losses occurring when gas flows through the pipe. Maximum compression pressure must not exceed the rated pipeline pressure (8.4 MPa), and thus each compressor station has protection against excessive pressure rise (automatic control system, safety valves).
The turbine-compressor units, each of 25 MW output, comprise of a centrifugal compressor and a gas turbine that powers it, with provision for heat recuperation from the exhaust. The recuperating system will be installed after the compressor station is fully equipped and the planned gas transmission volume is achieved.
The compressor units are connected into block systems with separate gas coolers sections. Each compressor unit-gas cooler block has a by-pass system with a control valve, connecting the discharge and inlet part, used during compressor start and revving-up. The compressor unit blocks are connected to a common manifold for parallel operation.
Each compressor unit is equipped with individual compressor and turbine control system. Moreover, a local facility control system is installed in each compressor station, with a control computer located in the station’s control room. Facility control is a part of the transit gas pipeline’s SCADA system.
The compressor stations are equipped with all facilities and auxiliary equipment necessary to ensure correct work and operation of the process equipment. In order to provide security for the station’s area and facilities located within this area, an electronic surveillance system has been envisioned, with CCTV cameras and the communication system envisions channels for transmission of information on surveillance of each station to both the local and central control room of SGT.
General criterion for selection of both the primary and auxiliary equipment is the highest world class of technology, documented with adequate references and meeting environmental protection requirements both in the construction and operation phase. A lot of attention has been also paid to meeting by the equipment offered environmental protection requirements in terms of emissions of harmful pollutions into the air and soil, noise level and arduousness.
Location of the compressor stations as well as their separated and properly arranged protective zones reduce effect of operation of the technical equipment on environment and local community.
Five compressor stations were designed along the Polish stretch of the transit gas pipeline in order to provide the gas flow required by the contracts. The flow is forced by compressing the gas by means of turbine-driven compressor units in the compressor stations to compensate pressure losses occurring when gas flows through the pipe. Maximum compression pressure must not exceed the rated pipeline pressure (8.4 MPa), and thus each compressor station has protection against excessive pressure rise (automatic control system, safety valves).
The turbine-compressor units, each of 25 MW output, comprise of a centrifugal compressor and a gas turbine that powers it, with provision for heat recuperation from the exhaust. The recuperating system will be installed after the compressor station is fully equipped and the planned gas transmission volume is achieved.
The compressor units are connected into block systems with separate gas coolers sections. Each compressor unit-gas cooler block has a by-pass system with a control valve, connecting the discharge and inlet part, used during compressor start and revving-up. The compressor unit blocks are connected to a common manifold for parallel operation.
Each compressor unit is equipped with individual compressor and turbine control system. Moreover, a local facility control system is installed in each compressor station, with a control computer located in the station’s control room. Facility control is a part of the transit gas pipeline’s SCADA system.
The compressor stations are equipped with all facilities and auxiliary equipment necessary to ensure correct work and operation of the process equipment. In order to provide security for the station’s area and facilities located within this area, an electronic surveillance system has been envisioned, with CCTV cameras and the communication system envisions channels for transmission of information on surveillance of each station to both the local and central control room of SGT.
General criterion for selection of both the primary and auxiliary equipment is the highest world class of technology, documented with adequate references and meeting environmental protection requirements both in the construction and operation phase. A lot of attention has been also paid to meeting by the equipment offered environmental protection requirements in terms of emissions of harmful pollutions into the air and soil, noise level and arduousness.
Location of the compressor stations as well as their separated and properly arranged protective zones reduce effect of operation of the technical equipment on environment and local community.