| 摘要 |
FIELD: gas-turbine engineering. SUBSTANCE: gas-turbine engine drives multistage compressor that feeds hydrocarbon raw material to processing device such as catalytic reactor. In some cases, gas-turbine plant is started bypassing some portion of working medium from outlet of multistage compressor. Bypassed portion of working medium is conveyed from outlet of multistage compressor to inlet of its exhaust stage and some portion of working medium is bypassed from outlet of each remaining stage to inlet of this stage; working medium leaving compressor is passed immediately to processing device wherein working temperature is set by varying amount of working medium bypassed in each or some of compressor stages. Novelty in device is that pipeline or case bypass duct running from outlet of multistage compressor communicates with inlet of its exhaust stage; outlet of each of remaining stages communicates through pipeline or duct incorporating throttling member with inlet of respective stage; compressor outlet communicates by means of pipeline directly with processing device inlet. In addition, device may be provided with throttling member placed in pipeline running between compressor and inlet of processing device and bypassing this throttling member through pipeline incorporating second throttling member, heat exchanger- heater, and third throttling member installed therein in tandem as well as mixer placed at bypass-pipeline-end-to-main-pipeline joint. EFFECT: improved efficiency of working medium heating, enlarged operating temperature range, reduced compressor power under main operating conditions, and improved performance characteristics under all conditions. 3 cl, 1 dwg
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