Steam supply system for testing dynamic performance of steam turbine power generating set

Abstract

The invention discloses a steam supply system for testing the dynamic performance of a steam turbine power generating set. A boiler is included, and a main throttle valve, the steam turbine power generating set, a condenser and a pump set are further included; and the boiler is sequentially connected with the main throttle valve, the steam turbine power generating set, the condenser and the pump set, so that a closed loop work loop is formed. During testing of the dynamic performance of the steam turbine power generating set, according to the bias between the steam pressure in front of the main throttle valve and a set value and the changing rate, the opening degree of a fast adjusting valve is automatically increased or decreased, so that the steam pressure in front of the main throttle valve is maintained within a required range.

Description

technical field [0001] The invention relates to the technical field of steam turbine generator sets, in particular to a steam supply system used for dynamic performance testing of steam turbine generator sets. Background technique [0002] During the performance test of the steam turbine generator set, a single boiler supplies steam to the steam turbine generator set, which is a unit heating system, that is, one boiler corresponds to the operation mode of one or more steam turbine generator sets. The steam in the room cannot be stored, and the test requires cooperation and coordination between the boiler and the turbo-generator set, otherwise it will cause fluctuations in the steam supply pressure and the operating speed of the turbo-generator set, which cannot meet the test and test requirements. [0003] During the dynamic performance test of the turbo-generator set, the maximum load change of the turbo-generator set suddenly changes between 100% and 0%, and the inlet stea...

AI Technical Summary

Problems solved by technology

[0004] For the dynamic performance test of a single steam turbine generator set, due to the inherent differences in the operating characteristics of the boiler and the steam turbine generator set, when the load of the steam turbine generator set suddenly increases from 0% to 100%, the steam supply pressure drops significantly, and the steam supply flow rate It cannot be supplied in time and quickly, and when the load of the steam turbine generator set suddenly decreases from 100% to 0%, the steam supply pressure will rise sharply, which cannot meet the requirements of the test and test, and there are potential safety hazards

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