CERI Phoenix Industrial Furnace Co.

Beijing, China

CERI Phoenix Industrial Furnace Co.

Beijing, China
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Feng J.-X.,University of Science and Technology Beijing | Jiang M.,University of Science and Technology Beijing | Zhou W.-H.,University of Science and Technology Beijing | Wu Q.-M.,CERI Phoenix Industrial Furnace Corporation | Xiang S.-H.,Baosteel
Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing | Year: 2014

In order to solve the large wall temperature difference and high NOx emission of W-shaped radiant tubes, this article introduces a kind of W-shaped radiant tube with flue gas circulation. A mathematical model of the radiant tube is established and the radiant tube is studied by the method of numerical calculation. On the basis of the model's reliability, the velocity field, temperature field and NOx emission are compared between the radiant tube and a conventional W-shaped radiant tube. The average gas velocity of the new radiant tube is three times that of the conventional radiant tube, and 57.6% flue gas is involved in recombustion in the new radiant tube. The maximum combustion temperature of the new radiant tube is 2260 K, which is 192 K lower than that of the conventional radiant tube. The wall temperature difference of the new radiant tube is 166 K, which is 76 K lower than that of the conventional radiant tube. The NOx emission of the new radiant tube is 9.9×10-5, but the NOx emission of the conventional radiant tube is 7.98×10-4, nearly seven times higher. ©, 2014, University of Science and Technology Beijing. All right reserved.


Feng J.-X.,University of Science and Technology Beijing | Jiang M.,University of Science and Technology Beijing | Cao Y.-P.,University of Science and Technology Beijing | Chen Y.-M.,University of Science and Technology Beijing | And 2 more authors.
Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing | Year: 2014

To cope with the high NOx emission problem of W-shaped radiant tubes, the influence of diluents in two-stage air combustion on the NOx emission of W-shaped radiant tubes was investigated numerically. Calculation results coincide well with data obtained from experiments. The analysis was carried out for 3 cases: different diluents, stepwise dilution, and diluents together with high temperature air. Compared to diluting with N2, diluting with CO2 produces less NOx. It can reduce the NOx emission blow 4×10-5 by increasing the diluted volume fraction under the condition of ensuring flame stabilization. By stepwise dilution, the secondary air contributes more to NOx reduction than the primary air. The NOx emission can be controlled under 1×10-4 by increasing the diluted volume fraction, even if the temperature of preheated air reaches above 1000 ℃.


Feng J.-X.,University of Science and Technology Beijing | Feng J.-X.,Energy and Environmental Research Center | Wang H.-Y.,University of Science and Technology Beijing | Wu Q.-M.,CERI Phoenix Industrial Furnace Corporation | Xiang S.-H.,Baosteel
Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing | Year: 2013

In order to solve the problem of high exhaust gas temperature in W-shaped gas-fired radiant tubes, three kinds of structures were designed to improve the heat exchanger performance. Numerical simulation was carried out by using ANSYS FLUENT software. The performance parameters of heat exchangers with different structures were obtained, such as exhaust gas outlet temperature, preheated air temperature, pressure loss, heat flux in each surface, and heat resistance change with and without baffles. It is shown that the quantity of heat exchange increases by 57.6% after the central air tube changes from one tube of φ79 mm to six tubes of φ33 mm and by 20.7% through adding a double trip of exhaust gas. After inserting the sealed baffle and porous baffle, the quantity of heat exchange increases by 5.7% and 5.3% respectively, and the thermal resistance between air and exhaust gas decreases both by about 20%. The pressure loss of the porous baffle is lower by 47.4% than the sealed-baffle.


Zhang X.,Tsinghua University | Lu W.,Tsinghua University | Zhou H.,Tsinghua University | Liu Y.,CERI Phoenix Industrial Furnace Company Ltd | Wu Q.,CERI Phoenix Industrial Furnace Company Ltd
Ranshao Kexue Yu Jishu/Journal of Combustion Science and Technology | Year: 2014

Three-dimensional temperature distribution measurement experiment was carried out on a single nozzle horizontal furnace by radiation image processing technology, and the nozzle characteristic parameters such as flame length and flame diameter were analyzed according to temperature distribution, which were consistent with the results from image edge extraction algorithm. The temperature monitoring accuracy was verified througth several thermocouples, and the measurement error was less than 6%. The application of three-dimensional temperature distribution measurement technique to single nozzle combustion monitoring would help the comprehensive analysis of flame state and guide the optimization design of nozzle.


Wang J.X.,Inner Mongolia University of Science and Technology | Cao X.Q.,Inner Mongolia University of Science and Technology | Wu Q.M.,CERI Phoenix Industrial Furnace Co.
Advanced Materials Research | Year: 2014

Developments of products and technologies always follow certain objective law and the same objective law can be applied in different technical fields. the innovation processes of any products follow a law, the development of all technical innovation is toward maximum function. By applying some technical evolution paths, this paper analyses the technical development process of Converter Tilting Machines and forecasts the future development. The evolutionary paths of converter tilting mechanism has been analyzed by using TRIZ Theory, and, the development of Converter Tilting Machine has been forecasted. According to the path toward flexibility, we can forecast that Converter Tilting Machine can be driven by Filed force. © (2014) Trans Tech Publications, Switzerland.


Wang J.,Inner Mongolia University of Science and Technology | Hu Y.,Inner Mongolia University of Science and Technology | Wu Q.,Ceri Phoenix Industrial Furnace Co. | Wang Y.,Inner Mongolia University of Science and Technology | Cao X.,Inner Mongolia University of Science and Technology
Jinshu Rechuli/Heat Treatment of Metals | Year: 2014

Radiant tube is the main heating element of the combustion heating furnace, the heating efficiency, thermal efficiency, temperature homogeneity and service life are its major performance indexes. The main performances of the radiant tube evolution route were summarized and analyzed by applying theory of technical evolution of TRIZ.Based on these evolution routes, it can be found that there are still lots of space on study of radiant tube, and then it should be changing the direction of geometric shapes and super system development by using the evolution route.


Wang J.X.,Inner Mongolia University of Science and Technology | Wang Y.B.,Inner Mongolia University of Science and Technology | Wu Q.M.,CERI Phoenix Industrial Furnace Co.
Advanced Materials Research | Year: 2014

Using the theory of technology evolution of TRIZ blast furnace top charging equipmentevolution route is summarized and analysis system, and the evolution route to forecast the futuredevelopment direction of blast furnace top charging equipment possible. © (2014) Trans Tech Publications, Switzerland.


Chen Y.,University of Science and Technology Beijing | Feng J.,University of Science and Technology Beijing | Liu X.,University of Science and Technology Beijing | Wu Q.,CERI Phoenix Industrial Furnace Corporation
Jinshu Rechuli/Heat Treatment of Metals | Year: 2016

In order to improve flue gas circulating rate of double P-type radiant tube, effects of nozzle jet velocity, nozzle position, outlet pressure and gas-circulation-tube structures on flue gas circulating were simulated by FLUENT soft. The results show that the flue gas circulating rate increases by about 60% when nozzle jet velocity changes from 75 m/s to 150 m/s. Whereas the nozzle moves from outside (x=-115 mm) to center (x=0 mm), the flue gas circulating rate increases by about 8%. Additionally, the gas-circulation-tubes changed from right-angle-pipe to elbow made the flue gas circulating rate increase by about 2.5%-8%. But the outlet pressure had nothing to do with flue gas circulating rate. © 2016, Chinese Mechanical Engineering Society of Heat Treatment. All right reserved.


Feng J.-X.,University of Science and Technology Beijing | Chen Y.-M.,University of Science and Technology Beijing | Liu X.-J.,University of Science and Technology Beijing | Wu Q.-M.,CERI Phoenix Industrial Furnace Co.
Gongcheng Kexue Xuebao/Chinese Journal of Engineering | Year: 2016

In order to improve the thermal efficiency of radiant tubes, a flat double-P type radiant tube was designed, and five major axis-to-minor axis ratios of 1.0, 1.1, 1.2, 1.3 and 1.4 on the cross section of the center pipe were taken for numerical simulation to investigate the influence characteristics of the degree of flattening on the performance of the radiant tube by using the commercial software FLUENT. It is found that in the case of keeping the heat transfer surface area of the radiant tube invariable, when the degree of flattening increases, the radiant angle factor for the radiant tube and strip steel gradually grows, the radiant heat flow improves, and then thermal efficiency of the radiant tube rises. However, with an increase in the degree of flattening, the surface temperature difference of the radiant tube gradually increases, and the surface temperature uniformity significantly deteriorates after the degree of flattening reaches 1.3. In consideration of the thermal efficiency and surface temperature uniformity of the radiant tube, the better degree of flattening is 1.2. At this degree of flattening the radiation heat efficiency of the radiant tube increases by about 1% compared with that at the degree of flattening of 1.0, while the surface temperature uniformity is almost the same. © All right reserved.

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