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Combined cycle and combined heat and power (CHP) equipment and process

A technology of cogeneration and combined cycle, which is applied in mechanical equipment, combined combustion mitigation, steam generation method using heat carrier, etc. question

Active Publication Date: 2014-05-21
JINNENG SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The usual combined heat and power generation takes steam turbine as the main body, adopts condensing type or back pressure type, and its available temperature difference range is limited, so its energy efficiency is not high, and the potential for improving efficiency is not great. flexibility is also restricted

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  • Combined cycle and combined heat and power (CHP) equipment and process
  • Combined cycle and combined heat and power (CHP) equipment and process
  • Combined cycle and combined heat and power (CHP) equipment and process

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Embodiment Construction

[0017] In view of the actual national conditions in which coal is the main energy source in my country, considering the large output and easy access of coke oven gas, a product of the relevant coal chemical industry, combined with thermodynamics, heat transfer, chemical kinetics, and fluid science Theory and technology, the present inventor adopts the thermodynamic cycle mode combining combined cycle and cogeneration technology, and proposes the combined cycle cogeneration process and equipment of the present invention.

[0018] The combined cycle heat and power cogeneration process of the present invention includes a plurality of branch processes using gas turbines and waste heat boilers, and the waste heat boilers use the high-temperature flue gas discharged from the corresponding gas turbines as a heat source for heat exchange to provide steam turbines and heat users. , wherein at least one of the branch processes is an adjustable branch process to adjust and distribute the f...

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Abstract

The invention discloses a combined cycle and combined heat and power (CHP) equipment and process. The equipment is provided with a plurality of branch systems comprising gas turbines and waste heat boilers, wherein the waste heat boilers utilize high-temperature flue gas exhausted by the corresponding gas turbines as heat exchange heat sources so as to provide required steam for steam turbines and heat users; and at least one of the branch systems is an adjustable branch system which can adjust and distribute the flow of the waste heat boilers therein, which enters the steam turbines and heat supply pipe networks, so that the generated heat and power can meet the practical heat and power demands. By using coke oven gas as the fuel, the invention realizes good heat energy matching with the chemical production process and the like, and has the advantages of more reasonable energy level matching, high overall efficiency and flexible heat and power load adjustment.

Description

technical field [0001] The invention relates to the technical field of energy-saving heat and power cogeneration based on coal coking, in particular to a combined cycle heat and power cogeneration equipment and process using coke oven gas as fuel. Background technique [0002] Currently, technologies related to the present invention mainly include combined cycle technology and combined heat and power (CHP) technology. The development status and system characteristics of their respective technologies are as follows: [0003] The combined cycle is a new thermodynamic cycle that combines the Brayton cycle of the gas turbine and the Rankine cycle of the steam turbine to form a total energy system for energy cascade utilization and achieve high thermal efficiency. [0004] As a thermodynamic cycle developed in modern times, the combined cycle has many arrangements: (1) steam injection (STIG) cycle: this cycle uses the high-temperature exhaust gas of the gas turbine to generate s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K23/10F01K17/00F01K11/02F01D15/10F22B1/18
CPCY02E20/16Y02E20/14Y02E20/18
Inventor 赵洪滨秦庆平赵爱民张耀东刘畅
Owner JINNENG SCI & TECH
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