Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Real-time measurement method for retention time of flue gas in garbage incinerator at 850 DEG C

A waste incinerator and residence time technology, which is applied in the field of boiler monitoring in power plants, can solve problems such as hidden dangers of human health and ecological environment safety, and is difficult to degrade naturally, and achieves good linearity, good stability and uniformity, and large thermal electromotive force. Effect

Active Publication Date: 2017-05-31
XIAN THERMAL POWER RES INST CO LTD
View PDF5 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dioxin is by far the most toxic by-product of human unconscious synthesis. It has stable physical and chemical properties and is difficult to degrade naturally. It poses a huge safety hazard to human health and the ecological environment.

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
  • Real-time measurement method for retention time of flue gas in garbage incinerator at 850 DEG C
  • Real-time measurement method for retention time of flue gas in garbage incinerator at 850 DEG C
  • Real-time measurement method for retention time of flue gas in garbage incinerator at 850 DEG C

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0058] A method for real-time measurement of residence time of flue gas in a waste incinerator at 850°C, comprising the following operations:

[0059] 1) Construct the real-time temperature field distribution along the furnace height in the incinerator:

[0060] In the waste incinerator, set multiple smoke temperature measuring points along the height direction of the vertical flue of the furnace, and the smoke temperature measuring points extend into the furnace to a depth of 200mm to 400mm; the real-time temperature field distribution in the incinerator is linearly attenuated along the height of the furnace, that is, The temperature at the lower part of the furnace is always greater than the temperature at the outlet of the furnace, and can be fitted with a linear function;

[0061] Specif...

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 solves the problem to provide a real-time measurement method for retention time of flue gas in a garbage incinerator at 850 DEG C, comprising the steps of building real-time temperature field distribution along the furnace height in the incinerator, determining flue gas temperature change gradient in a flue, correcting flue gas velocity in real time, and determining whether the retention time of the flue gas in a hearth at the temperature of not lower than 850 DEG C can meet 850 DEG C / 2S emission index verification under the running of a garbage power plant; during the running of a unit, collecting a thermocouple measurement value in real time by a DCS (distributed control system), displaying the value on a DCS display and sending to an SIS system of the power plant synchronously, receiving data, sent from the DCS, by the SIS system, then storing in a real-time server of the SIS system, transmitting the data to a compute server, calculating the retention time t of the flue gas at the temperature of higher than 850 DEG C in real time, and a position at the temperature below 850 DEG C, and displaying in the production process of an SIS page in real time; operating crew of the power plant can monitor in the SIS page in real time, and monitor the retention time, meeting the temperature condition of 850 DEG C, of the flue gas in the hearth, so that the environmental requirement is met.

Description

technical field [0001] The invention belongs to the technical field of power plant boiler monitoring, and relates to a real-time measurement method for the residence time of flue gas in a garbage incinerator under the condition of 850°C. Background technique [0002] Dioxin, also known as dioxin, is a colorless, odorless, highly toxic fat-soluble substance that can interfere with the body's endocrine and cause extensive health effects. Dioxin is an environmental pollutant and belongs to "Twelve Hazards". Garbage incineration is likely to cause secondary pollution, among which dioxin pollution is the most harmful. Dioxin is by far the most toxic by-product synthesized unconsciously by humans. It has stable physical and chemical properties and is difficult to degrade naturally. It poses a huge safety hazard to human health and the ecological environment. Solid waste incineration is one of its main sources, and according to statistics, its contribution rate can reach 50%-80%....

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
IPC IPC(8): G01N25/32
CPCG01N25/32
Inventor 王智微刘廷钰刘超飞
Owner XIAN THERMAL POWER RES INST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com