US 6,282,883 B1 · Hydrogen burning turbine plant

Abstract

Easy plant starting is provided in a hydrogen burning turbine plant for burning hydrogen and oxygen to generate high temperature steam for driving a turbine. There is constructed a semi-closed cycle such that low temperature steam from compressor 1 enters combustion chamber 2, hydrogen and oxygen are burned in the combustion chamber 2 to become high temperature steam for driving turbine 3, and the steam provides exhaust heat at heat exchanger 4 and then returns to low pressure compressor 1-1. Steam from midway of the heat exchanger 4 enters low pressure turbine 6 for work therein, and is condensed to water. The water from condenser 7 is heated at heat exchangers 4-4, 4-3, 4-2 to become steam for driving high pressure turbine 5, and returns to the combustion chamber 2 through the heat exchanger 4. An a auxiliary boiler is provided at inlet side of the compressor 1, and the high temperature steam generated at the combustion chamber 2 at the starting time is diluted and supplied into the turbine 3. Thus, the starting can be performed smoothly.

Claims19

Dependent claims

A hydrogen burning turbine plant for burning hydrogen and oxygen to generate high temperature steam for driving a turbine, comprising:

a combustion chamber in which hydrogen and oxygen are to be burned for generating high temperature steam;
a turbine to receive and be driven by the high temperature steam;
a heat exchanger to receive exhaust steam from said turbine and to remove heat from the exhaust steam;
a low pressure compressor to receive exhaust steam from said heat exchanger and to compress this exhaust steam;
a high pressure compressor to receive the compressed exhaust steam from said low pressure compressor, to further compress this exhaust steam, and to supply the further compressed exhaust steam to said combustion chamber;
a spray device to spray water onto the compressed exhaust steam discharged from said low pressure compressor before this exhaust steam enters said high pressure compressor;
and
a boiler to create steam and supply this steam to the steam to be supplied to said combustion chamber, such that the temperature of the high temperature steam generated by the burning of the oxygen and hydrogen in said combustion chamber at a starting time of the plant is less than it would be absent the steam created by the boiler being supplied to the steam supplied to the combustion chamber.

5 more elements

A hydrogen burning turbine plant for burning hydrogen and oxygen to generate high temperature steam for driving a turbine, comprising;

a combustion chamber in which hydrogen and oxygen are to be burned for generating high temperature steam;
a first turbine to receive and be driven by the high temperature steam;
a heat exchanger to receive exhaust steam from said first turbine and to remove heat from the exhaust steam;
a compressor to receive exhaust steam from said heat exchanger, to compress this exhaust steam, and to supply the compressed exhaust steam to said combustion chamber;
a high pressure turbine to receive heat removed from the exhaust steam by said heat exchanger;
a low pressure turbine to receive and be driven by exhaust steam from said heat exchanger;
a condenser to receive exhaust steam from said low pressure turbine;
and
a control unit to control a steam flow rate based on predetermined characteristics of steam pressure and steam flow rate of each of said high pressure turbine, said first turbine, said low pressure turbine and said compressor, and also to control a fuel flow rate based on predetermined characteristics of steam temperature at an inlet end of said first turbine in relation to a fuel ratio, a fuel flow rate and an opening of a fuel valve.

6 more elements

Dependencies are inferred from the claim text.

Hydrogen burning turbine plant

Life of this patent

Hydrogen burning turbine plant

Life of this patent

Abstract

Claims19