Apparatus and method for rapidly quenching combustion products
A technology of combustion products and quenching, applied in the preparation of test samples, etc., can solve the problems of large dilution ratio and unknown accuracy.
Inactive Publication Date: 2017-06-16
TIANJIN UNIV
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The dilution ratio calculated by this method is very large, and the accuracy is not known
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
[0025] Such as figure 1 As shown, the device for rapidly quenching combustion products includes three parts: nitrogen jet tube 1, liquid nitrogen storage chamber 2 and dilution mixing chamber 3;
[0026] The nitrogen jet tube includes along the nitrogen flow direction: a compressed nitrogen inlet 4, a conical tapered area 5 and a jet area 6; the jet area includes: a buffer section 7, a constriction section 8 and a nitrogen outlet pressure stabilization section 9; There are 4 liquid nitrogen suction holes 10 connected to the jet area and the liquid nitrogen storage chamber on the buffer section, and the diameter of the small hole is one-fifth of the pipe diameter of the buffer section here. This parameter can better suck liquid nitrogen vapor; There are 12 combustion product suction holes on the pressure section, and the diameter of the combustion product suction hole is the same as that of the liquid nitrogen suction hole.
[0027] The dilution mixing chamber includes: a prem...
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 relates to a device and method for rapidly quenching combustion products. The purpose of the invention is to realize the dilution and cooling of the combustion products, and quickly stop the chemical reaction between the combustion products. A device for rapidly quenching combustion products, comprising: a nitrogen jet tube and a dilution mixing chamber; the nitrogen jet tube sequentially includes a compressed nitrogen inlet, a conical tapering zone and a jet zone along the direction of nitrogen flow; the jet zone The outer layer covers the premixing area, the left end of the premixing chamber is sealed with the nitrogen jet tube, and there is a combustion product inlet on the wall of the premixing area. The beneficial effect of the present invention is that: the present invention sets a conical tapering zone on the nitrogen jet tube, and utilizes the Venturi effect to form a low-pressure zone at the outlet of the high-velocity nitrogen gas, thereby achieving the purpose of sucking combustion products. The addition of liquid nitrogen reduces the temperature of the combustion products faster, provides a combination of dilution and cooling, and can achieve the purpose of instantly quenching the combustion products at a low dilution ratio.
Description
[0001] Technical field: [0002] The invention relates to a device and method for analyzing combustion products of an internal combustion engine, and further relates to a device and method for rapid quenching of combustion products. [0003] Background technique: [0004] Since the birth of the internal combustion engine, the combustion and emissions of the internal combustion engine have been the focus of various scholars and enterprises. Especially in recent years, environmental and oil issues have become increasingly prominent. In order to better understand the gas and particle composition of internal combustion engines and the formation of intermediate products, many researchers at home and abroad have used various methods to measure and study the products in the combustion process. Experiments that can effectively understand the combustion process include point sampling, full cylinder sampling, and optical measurement. Recently, there is also sampling that realizes the ab...
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): G01N1/28G01N1/38
Inventor 姚春德银增辉耿培林胡江涛姚安仁
Owner TIANJIN UNIV