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

Device for producing vehicle urea aqueous solution and application method of device

A urea aqueous solution and vehicle production technology, which is applied in the production of urea aqueous solution for vehicles and the field of devices for producing urea aqueous solution for vehicles, can solve problems such as product quality fluctuations, low production efficiency, and large floor space, and achieve stable product quality and improved The effect of production efficiency and small footprint

Active Publication Date: 2014-03-26
CHINA PETROLEUM & CHEM CORP
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has open equipment, so it has strict requirements on the production environment of the entire workshop, and it is easy to cause fluctuations in product quality
Artificial feeding can also cause unstable product quality
In this method, a large number of mixing tanks or large mixing tanks are also required, which occupy a large area
In addition, this method is intermittent production, and the production efficiency is low
The second method must rely on urea manufacturers, which limits the geographical layout of urea solution and increases the transportation cost of urea solution

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
  • Device for producing vehicle urea aqueous solution and application method of device
  • Device for producing vehicle urea aqueous solution and application method of device
  • Device for producing vehicle urea aqueous solution and application method of device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The deionized water: urea granule weight ratio of 67.5:32.5 deionized water and urea granules were added to the device 10 at the same time from the feeding device 11, and the rotating speed of the stirring shaft 20 of the dissolving device 12 was adjusted to 2500 rpm. Fill the heat exchange jacket 34 with deionized water at a temperature of 20° C. to control the temperature of the final automotive urea aqueous solution at 25° C. to obtain the product. The analysis results are shown in Table 1.

Embodiment 2

[0047] The deionized water: urea granule weight ratio of 67.5:67.5 deionized water and urea granules were added to the device 10 at the same time from the feeding device 11, and the rotating speed of the stirring shaft 20 of the dissolving device 12 was adjusted to 3000 rpm. Fill the heat exchange jacket 34 with deionized water at a temperature of 25°C, open the branch 35 at the same time, add deionized water into the mixing chamber 33 to control the temperature of the final aqueous urea solution for vehicles at 30°C, and obtain the product. The results are shown in Table 1.

Embodiment 3

[0049] Deionized water and urea granules with a weight ratio of 67.5:270 of deionized water: urea granules were added to the device 10 at the same time from the feeding device 11, and the rotating speed of the stirring shaft 20 of the dissolving device 12 was adjusted to 3200 rpm. Fill the heat exchange jacket 34 with deionized water at a temperature of 25° C. to control the temperature of the final aqueous urea solution for vehicles at 30° C. to obtain the product. At the same time, the branch 36 was opened, and the deionized water from the heat exchange jacket 34 was added to the feeding device 11 for dissolution. The analysis results are shown in Table 1.

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 device for producing a vehicle urea aqueous solution and an application method of the device. The device comprises a dissolving device, wherein the dissolving device is provided with a stirrer and used for dissolving urea granules; a feeding device is arranged at the upstream of the dissolving device and used for independently introducing the urea granules and deionized water into the dissolving device; a mixing device is arranged at the downstream of the dissolving device and used for regulating property of the urea aqueous solution; the stirrer is provided with one or more stirring shafts with blades. Through the device for producing the vehicle urea aqueous solution, the continuous production can be performed; meanwhile, the quality of the product is stable.

Description

technical field [0001] The invention relates to chemical equipment, in particular to a device for producing aqueous urea solution for vehicles. The invention also relates to a method for producing an aqueous urea solution for vehicles using the device. Background technique [0002] As the requirements of domestic emission regulations become more and more stringent, heavy-duty engine manufacturers basically choose the exhaust gas treatment technology of selective catalytic reduction (SCR), which requires the use of aqueous urea solution for vehicles as the reducing agent for the selective catalytic reduction reaction. The standard of urea aqueous solution for vehicles is very high, such as the content of Na, Mg, Al, K, Ca, Fe and other elements is not more than 0.5ppm, and the content of Cr, Ni, Cu, Zn is not more than 0.2ppm. This not only requires strict control of the quality of raw materials such as deionized water and urea, but also has extremely stringent requirements ...

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): B01F13/10B01F1/00B01F3/00B01F15/06B01F23/00
CPCY02A50/20
Inventor 耿立波杨兵张凯蛟李万英夏鹏水琳周干堂
Owner CHINA PETROLEUM & CHEM CORP
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