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

A system that utilizes the temperature difference of automobile exhaust to generate electricity to improve the conversion efficiency of scr

A technology for thermoelectric power generation and automobile exhaust, which is applied to the electronic control of exhaust treatment devices, exhaust devices, exhaust gas treatment, etc., and can solve the problems of easy formation of crystallization by urea spray, low NOx conversion rate, and low urea pyrolysis rate. , to achieve the effect of improving energy utilization efficiency, improving power generation efficiency, and reducing cold end temperature

Active Publication Date: 2021-06-22
JIANGSU UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention utilizes the waste heat of automobile exhaust to generate temperature difference power generation, without additional power supply to the heating device in the system, and can effectively solve the problem of low exhaust temperature, easy crystallization of urea spray, and low urea pyrolysis rate when the SCR system is in a low-temperature environment and low-temperature working condition and low NOx conversion

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
  • A system that utilizes the temperature difference of automobile exhaust to generate electricity to improve the conversion efficiency of scr
  • A system that utilizes the temperature difference of automobile exhaust to generate electricity to improve the conversion efficiency of scr
  • A system that utilizes the temperature difference of automobile exhaust to generate electricity to improve the conversion efficiency of scr

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, a system for improving SCR conversion efficiency by using the temperature difference of vehicle exhaust to generate electricity, the system includes two sets of devices: the vehicle exhaust temperature difference power generation device and the exhaust heating device. ), thermoelectric power generation sheet fixing mechanism 8, cooling water tank 10, cooling water pipeline 9, DC-DC voltage stabilizing circuit 5, storage battery 3, maximum power point tracer 6 (MPPT), exhaust heating device including resistance wire mesh 2, Battery 3 , electronic control unit 11 (ECU89661-0Z230 / 0Z240), temperature sensor 12 .

[0026] The interior of the front end of the exhaust pipe 1 is provided with a mixer 4, and the front end of the mixer 4 and the rear end of the urea nozzle are fixed by welding the resistance wire mes...

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 discloses a system for improving the conversion efficiency of SCR by utilizing the temperature difference of automobile exhaust to generate electricity, which comprises an automobile exhaust temperature difference power generation device and an exhaust heating device. Pipeline, cooling water tank, and exhaust heating device include resistance wire mesh, battery, temperature sensor, and ECU; this system uses low-grade automobile exhaust as the heat source, uses circulating water to cool the cold end of the thermoelectric power generation sheet, and uses a voltage stabilizing circuit for cooling. The voltage is stabilized, and the resistance wire mesh is powered by the battery and heats the exhaust to increase the intake temperature of the SCR system. The invention is aimed at low-temperature exhaust working conditions and low-temperature environments, increases the exhaust temperature, promotes urea hydrolysis, improves the conversion efficiency of the SCR system in low-temperature working conditions, and reduces the emission of harmful gases from automobiles.

Description

technical field [0001] The invention relates to the technical field of utilization of waste heat from automobile exhaust and post-treatment of exhaust gas, specifically utilizing the temperature difference between automobile exhaust gas and cooling water to continuously generate electricity and store it, and using the energy to heat the exhaust gas in the pipeline, thereby promoting the pyrolysis of urea, Improve SCR conversion rate. Background technique [0002] While the rapid development of the automobile industry has brought comfort and convenience to people, the increasingly serious energy shortage and exhaust pollution have also become increasingly prominent. During the working process of the automobile engine, about 30%-40% of the energy is discharged into the atmosphere along with the tail gas, and harmful gases such as NOx are produced at the same time, causing energy waste and environmental pollution. In recent years, the decline of oil production and the stricter...

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 Patents(China)
IPC IPC(8): F01N5/02F02G5/04F01N3/20F01N9/00
CPCF01N3/2013F01N3/2066F01N5/025F01N9/00F01N2610/02F02G5/04Y02T10/12Y02T10/40Y02A50/20
Inventor 王军付航胡义攀赵琛
Owner JIANGSU UNIV
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