Positive-pressure coal firing/biomass gasification coupled power generation system as well as method for electric energy conversion

A technology of power generation system and biomass, which is applied in gasification process, manufacture of combustible gas, chemical industry, etc., can solve the problems of tar contamination of inner wall and heating surface of conveying pipeline, instability of feeding system and influence of heat exchange, etc. Save equipment investment costs and maintenance costs, not easy to block material phenomenon, the effect of stable feeding system

Inactive Publication Date: 2018-12-18
HARBIN BOILER
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, several coal-fired coupled biomass gasification power generation systems have been proposed and applied, but there are still the following problems: (1) The feeding system is unstable, and accidents such as material blockage and flue gas backflow are prone to occur; (2) Gasification Large-area slagging in the furnace hearth is prone to cause shutdown of the furnace; (3) Insufficient measures to control the precipitation of tar in the gas, resulting in tar staining the inner wall and heating surface of the conveying pipeline, affecting heat transfer and even causing blockage;

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Positive-pressure coal firing/biomass gasification coupled power generation system as well as method for electric energy conversion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A positive pressure coal-fired coupled biomass gasification power generation system, which consists of: a feeding device 1, the feeding device is connected to the gasifier system 2 through pipelines, and the gasifier system is respectively connected to the ash The slag processing device 3 and the gas cooling device 4 are connected through a pipeline, the ash processing device is connected with the gas cooling device through a pipeline, and the gas cooling device is connected with the gas delivery device 5 through a pipeline, so The gas delivery device is connected to the gas combustion device 6 through pipelines, and the gas combustion device is connected to the coal-fired boiler 7 .

Embodiment 2

[0020] According to the positive pressure coal-fired coupled biomass gasification power generation system described in Example 1, a blower is installed inside the gasifier system, and an inert gas is installed inside the gasifier system and the gas delivery device The purge point and the release point, the gas flow rate of the gas delivery device is 15~30m / s, the gas cooling device is surrounded by a gas-heat transfer oil heat exchanger outer wall, and the gas-heat transfer oil heat exchanger outer wall The temperature is 350~450°C.

Embodiment 3

[0022] A method for converting electric energy using the positive pressure coal-fired coupled biomass gasification power generation system described in Embodiment 1 or 2, the method includes the following steps: first, setting the partial operating pressure of the feeding system connected to the gasifier system It is higher than the feed port of the gasification furnace, and then the feed system transports the biomass fuel to the gasification furnace system, the gasification furnace system produces ash and gas, the ash is sent to the ash processing device, and the gas is sent to the gas cooling device, The gas cooling device adopts the indirect heat exchange mode of "gas-heat transfer oil-cooling water". After the gas is cooled by the gas cooling device, it is sent to the gas combustion device through the gas delivery device. The furnace system, gas delivery device and gas combustion device are all operated under positive pressure;

[0023] The gas delivery pressure is provide...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a positive-pressure coal firing/biomass gasification coupled power generation system as well as a method for electric energy conversion. At present, a coal firing/biomass gasification coupled power generation system has the problems that a feeding system is instable and is liable to cause accidents such as blocking and flue gas returning, a hearth of a gasifier is liable to cause large-scope slag forming, which causes shutdown of the furnace, measures for controlling tar separation in flue gas is insufficient, which causes bad influence on heat exchange due to contamination of the inner wall and heated surfaces of a transporting pipeline due to the tar. The system includes a feeding apparatus (1) which is connected to a gasifier system (2) through a pipeline; the gasifier system is respectively connected to an ash treatment device (3) and a fuel gas cooling device (4) through pipelines; the ash treatment device and the fuel gas cooling device are connected through a pipeline; the fuel gas cooling device is connected to a fuel gas transporting device (5); the fuel gas transporting device is connected to a fuel gas firing device (6) through a pipeline; and the fuel gas firing device is connected to a coal-fired boiler (7). The method is used for the positive-pressure coal firing/biomass gasification coupled power generation system.

Description

Technical field: [0001] The invention relates to the technical field of biomass power generation, in particular to a positive pressure coal-fired coupled biomass gasification power generation system and a method for converting electric energy. Background technique: [0002] At present, several coal-fired coupled biomass gasification power generation systems have been proposed and applied, but there are still the following problems: (1) The feeding system is unstable, and accidents such as material blockage and flue gas backflow are prone to occur; (2) Gasification Large-area slagging in the furnace hearth is prone to cause shutdown of the furnace; (3) Insufficient measures to control the precipitation of tar in the gas, resulting in tar staining the inner wall and heating surface of the conveying pipeline, affecting heat transfer and even causing blockage; [0003] Biomass power generation technology is an energy-saving and environmentally friendly advanced power generation ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/72C10J3/82C10J3/84
CPCC10J3/72C10J3/82C10J3/84C10J2300/0916C10J2300/1671Y02P20/10
Inventor 于强胡鹏龙魏国华
Owner HARBIN BOILER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap