Flue gas system and control method thereof
A control method and flue gas technology, applied in pump control, separation methods, chemical instruments and methods, etc., can solve problems such as poor safety and pressure imbalance, and achieve the effects of low cost, improved safety, and simple structure
Active Publication Date: 2015-07-15
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Based on this, it is necessary to provide a flue gas system and its control method for the problems of explosion and poor safety caused by the pressure imbalance of the entire flue gas system
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] like figure 1 As shown, a flue gas system includes an electrostatic precipitator 120 connected to a boiler 110 , a combined fan 130 , a wet desulfurization device 140 and a flue gas discharge device 150 .
[0039] The electrostatic precipitator 120 is connected with the boiler 110, receives the flue gas provided by the boiler 110, and separates and collects dust particles in the flue gas. Wherein, the boiler 110 contains and burns fuel to generate flue gas. Boiler 110 is a device that uses the heat energy released by fuel combustion or other heat energy to heat water or other working fluids to produce steam, hot water or other working fluids with specified parameters (temperature, pressure) and quality. The electrostatic precipitator 120 is a device that uses a strong electric field to charge the dust particles, and separates and collects the dust particles under the action of the electrostatic field.
[0040] The combined blower 130 is connected with the electrostati...
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
Login to View More Abstract
The invention provides a flue gas system. The flue gas system comprises electrostatic dust collectors, combination fans, a wet desulfurization device and a flue gas exhaust device, wherein the electrostatic dust collectors are used for receiving flue gases and separating and gathering dust particles in the flue gases; the combination fans are used for transferring the flue gases subjected to dust collection treatment and are provided with regulating units; the regulating units are used for controlling output powers of the combination fans according to the resistance to the flue gases in a transfer process; the wet desulfurization device comprises a plurality of slurry circulating pumps and an absorption tower containing slurry; the slurry circulating pumps are installed in the absorption tower; an inlet of the absorption tower is connected with the combination fans and is used for receiving the flue gases transferred by the combination fans to carry out desulfurization treatment on the flue gases; the flue gas exhaust device is used for exhausting the flue gases subjected to desulfurization treatment. The flue gas system has the beneficial effects that the output powers of the combination fans are controlled according to the resistance to the flue gases in the transfer process; therefore the regulated objects are single and the combination fans can quickly and accurately provide required conveying forces to maintain pressure balance of the flue gas system to prevent explosion, thus improving the safety. The invention also provides a control method of the flue gas system.
Description
technical field [0001] The invention relates to the technical field of power plant flue gas desulfurization engineering, in particular to a flue gas system and a control method thereof. Background technique [0002] With the development of pollutant prevention and control technology in thermal power plants, in order to meet the requirements of national environmental protection, large thermal power plants usually need to build flue gas desulfurization devices. After that, it is discharged into the atmosphere by the smoke exhaust device. In order to overcome the resistance of the desulfurization device, a booster fan is generally required. [0003] At present, the induced draft fan is generally used to control the furnace pressure, and the booster fan is used to control the inlet pressure of the booster fan. Due to the pipeline characteristics of the entire flue gas system from the boiler outlet to the flue gas discharge device, the change in furnace pressure and the inlet pr...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/80B01D53/50F04D27/00
Inventor 欧卫海刘宇穗杨桂李煜东张治中李伟科王晓雄陈晓锋裴顺
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD