Water injection forward and inverse gas turbine combined cycle system for burning double types of fuel and supplying both heat and electricity

A combined heat and power, gas turbine technology, applied in gas turbine installations, combined combustion mitigation, mechanical equipment, etc., can solve problems such as being limited and cannot exceed 900 °C, to ensure self-balance, improve energy utilization efficiency, and improve power generation efficiency Effect

Active Publication Date: 2016-12-14
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, limited by the material of the high-temperature gas-gas heat exchanger, the air outlet temperature of the heated heat exchanger generally cannot e

Method used

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  • Water injection forward and inverse gas turbine combined cycle system for burning double types of fuel and supplying both heat and electricity
  • Water injection forward and inverse gas turbine combined cycle system for burning double types of fuel and supplying both heat and electricity

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Embodiment Construction

[0049] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0050] see figure 1 , 2 , the dual-fuel combined heat and power supply and water injection forward and reverse gas turbine combined cycle system of the present invention includes: a compressor 1, a combustion chamber 2, a turbine 3, a water injection heat exchanger 4, a heat supply heat exchanger 5, and a flue gas recuperator 6. Flue gas cooler 7, water drop filter 8, exhaust compressor 9, water pump 10, cooling water cooler 11, water injection device 12, gas regenerator 13, boiler 14, boiler gas-gas heater 15, boiler Air preheater 16, generator 17.

[0051] Air enters from the air input end of the compressor 1; the output end of the compress...

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Abstract

The invention relates to a water injection forward and inverse gas turbine combined cycle system for burning both clean fuel and biomass fuel and supplying both heat and electricity. A gas turbine adopts the form of heat regenerative water injection-inverse gas turbine combined cycle and burns clean fuel; smoke generated by biomass fuel burning in a boiler indirectly heats air entering a combustion chamber of the gas turbine at first, and then preheated air entering the boiler, wherein medium-and-low-temperature heat in cycle of the gas turbine can be used for external heat supplying. According to the water injection forward and inverse gas turbine combined cycle system, the cascade utilization principle of energy is utilized, and an external burning method and the advanced water injection forward and inverse Brayton cycle are combined organically, so that the energy utilization efficiency of the biomass fuel can be greatly improved; the ratio of the biomass fuel to the clean fuel is adjustable; and self-balance of water injection water consumption and water recycling is realized.

Description

technical field [0001] The invention relates to the technical field of gas turbines, in particular to a dual-fuel heat and power combined supply water injection forward and reverse gas turbine combined cycle system. Background technique [0002] A simple cycle gas turbine consists of a compressor, a combustor and a gas turbine (turbine for short). The compressor continuously draws in air from the atmosphere and compresses it. The compressed air enters the combustion chamber, mixes with the injected fuel, and burns to become high-temperature gas, which then flows into the turbine and expands to do work, pushing the turbine impeller to rotate together with the compressor impeller, and the residual work is used as the output mechanical work of the gas turbine and generate electricity. The gas temperature before the turbine inlet is called the initial gas temperature. In order to make full use of the exhaust waste heat of the gas turbine, a waste heat recovery device is gener...

Claims

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Application Information

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IPC IPC(8): F02C6/00F02C3/04F02C3/30F02C7/10F02C7/14
CPCY02E20/14Y02E20/16F02C6/00F02C3/04F02C3/305F02C7/10F02C7/14
Inventor 张士杰肖云汉
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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