초록 ▼

An electric power plant having dual turbine-generators connected to a steam source that includes a high temperature gas cooled nuclear reactor. Each turbine comprises a high pressure portion operated by superheat steam and an intermediate-low pressure portion operated by reheat steam; a bypass line

An electric power plant having dual turbine-generators connected to a steam source that includes a high temperature gas cooled nuclear reactor. Each turbine comprises a high pressure portion operated by superheat steam and an intermediate-low pressure portion operated by reheat steam; a bypass line is connected across each turbine portion to permit a desired minimum flow of steam from the source at times when the combined flow of steam through the turbine is less than the minimum. Coolant gas is propelled through the reactor by a circulator which is driven by an auxiliary turbine which uses steam exhausted from the high pressure portions and their bypass lines. The pressure of the reheat steam is controlled by a single proportional-plus-integral controller which governs the steam flow through the bypass lines associated with the intermediate-low pressure portions. At times when the controller is not in use its output signal is limited to a value that permits an unbiased response when pressure control is resumed, as in event of a turbine trip.

대표청구항 ▼

A power plant comprising, a steam source to generate superheat and reheat steam, a first turbine-generator including at least a first high-pressure turbine portion operated by superheat steam, a first lower pressure turbine portion operated by reheat steam, and an electric generating means rotatably

A power plant comprising, a steam source to generate superheat and reheat steam, a first turbine-generator including at least a first high-pressure turbine portion operated by superheat steam, a first lower pressure turbine portion operated by reheat steam, and an electric generating means rotatably driven by said first high and first-lower pressure turbine portions, a second turbine-generator including at least a second high-pressure turbine portion operated by superheat steam, a second lower pressure turbine portion operated by reheat steam, and an electric generating means rotatably driven by said second high and second lower pressure turbine portions. first bypass means for conducting reheat steam from said steam source, second bypass means for conducting reheat steam from said steam source, and means for comparing a measured value of the pressure of reheat steam with a desired value of such pressure to detect a difference between such values, and for varying the combined steam flow through said first and second bypass means to reduce a detected difference to a zero steady state level.