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Zhang C.S.,University of Jinan | Jing S.H.,University of Jinan | Ma Q.L.,CVIC Software Engineering Co. | Shi L.G.,Sinoma Technology and Equipment Group Co.
Applied Mechanics and Materials | Year: 2014

With the rapid development of cement industry in China, looseness of information management and hardness of production line optimization control have became an utmost important issue. In this paper, we design and implement a remote optimization and control system via B/S architecture, which is under the model of ASP.NET MVC. Conclusively, this system implements the functions which are data analysis and processing of cement enterprises, optimization control of production line and meta-analysis of enterprise information. © 2014 Trans Tech Publications, Switzerland.


Shao C.,Nankai University | Guan Y.,Nankai University | Wan Z.,Shanghai Maritime University | Guo C.,Sinoma Technology and Equipment Group Co. | And 2 more authors.
Journal of Cleaner Production | Year: 2014

Rapid economic development of industrial cities has led to a significant increase in energy consumption and carbon emissions in China. Through the log-mean Divisia index decomposition method and the cluster analysis method, this paper provides a systematic method to (1) analyze the time series of carbon emissions from the energy consumption of the industrial sector in a city; (2) explore the main factors affecting carbon emissions; and (3) divide industries in a city into different types and analyze combination features of "emissions-efficiency". Finally, this paper takes Tianjin as an example, and studies the emissions characteristics of Tianjin. Results show that high-emission and low-efficiency industries play important roles in the development and economic growth of industries in Tianjin, improvements in energy utilization efficiency are the most important contributors to effective industrial energy conservation and emission reductions in Tianjin, and that the method developed in this paper is practical in the analysis of carbon emissions characteristics of an industrial city or region. © 2013 Elsevier Ltd. All rights reserved.


Li Y.,China Academy of Safety Science and Technology | Wang H.,Sinoma Technology and Equipment Group Co.
QR2MSE 2013 - Proceedings of 2013 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering | Year: 2013

Chemical industry park development has become an inevitable trend. However, due to the high density of numerous enterprises and workers, it easily leads to mass death, casualty and domino effects in case of any accidents, so the quantitative area risk assessment (QARA) and safety planning are particularly important. Taking a chemical industry park as an example and based on the current research, this paper conducts quantitative risk assessment with CASSTQRA software to work out the integrated individual risk contour distribution and social risk capacity curve and proposes a safety planning combining with an acceptable risk criterion to ensure the safety and long-term development of the park. © 2013 IEEE.


Gao B.J.,Hebei University of Technology | Li H.J.,Hebei University of Technology | Chen Y.F.,Hebei University of Technology | Chen Y.F.,Sinoma Technology and Equipment Group Co. | Dong J.H.,Hebei University of Technology
Procedia Engineering | Year: 2015

The gully shape thinning due to corrosion often occurs in the cold and hot syngases mixing tee and its downstream straight pipe used in the gas quenching system of the coal gasification process, and leads to leakage and cracking of the pipe which endangers the system safety. Analysis indicates that droplets in the cold syngases turn out to be corrosive droplets when absorbing H2S and CO2 at working pressure and temperature. In this paper, the flow, aggregation and evaporation of the corrosive droplets are simulated with the k-É turbulence model, the species transport model and the discrete phase model by FLUENT. It reveals that the corrosive droplets would aggregate to the downstream of the mixing tee at 0o orientation. The distance of the downstream aggregation is 1.5 m. The aggregation and evaporation of corrosive droplets causes the corrosion thinning of the droplet aggregation region, which leads to tear cracking under high stress. An improved structure is proposed to avoid the corrosive droplet aggregation, in which a fluid guidance is conically flared and welded before the branch entrance. The fluid guidance is made of Inconel8825. The cold syngases flow inside the fluid guidance, and the hot syngases flow outside the fluid guidance. The cold and hot fluid exchanges heat through the guidance but without mixing. The mixing is postponed to the downstream. It shows that the aggregation of the corrosive droplet is effectively eliminated and droplet concentration at the downstream wall is less an order of magnitude of the upstream, which is helpful to avoid the corrosion and cracking of the structure. © 2015 The Authors.


Wang Z.,Sinoma Technology and Equipment Group Co. | Tan Z.,Nanchang University | Liu L.,Hebei University of Technology | Zhang S.,Sinoma Technology and Equipment Group Co. | Tan Y.,Sinoma Technology and Equipment Group Co.
Applied Mechanics and Materials | Year: 2012

There are many limitations depend on traditional physical product testing methods. Firstly, the cost is high and adaptability is poor. Secondly, the test is lag and it can't follow the new product design's beat. Thirdly, it can't converge with digital design method, and it difficult to meet with the requirement of industry information. Study a product's digital test method which based on modern design technical, and discuss simulation testing technical come true which face to virtual prototyping of bag filter, and aiming at digital testing result of bag filter main working capability prove feasibility and effectiveness of this method. Firstly, analyses components of digital virtual testing system and theory of working, and provide design model of virtual prototyping testing and testing progress how to come true, and by changing the condition of working simulation, and sampling, and data processing, acquire the result of dust gas uniformity which is design prototyping of bag filter. Application prove that digital process, face to digital testing of product virtual prototyping, by testing object and testing instrument and testing progress, and so on, adopting model simulation, digital simulation, calculate experiment, simulate testing technical, complete prototyping testing working under fully virtual state in computer. Let prototyping design quality controlling which is based on quantizing move forward. Achieve parallel designing and testing, which is full with the zero-cost, zero-lag, zero error of large and complex mechanical equipment design testing. © (2012) Trans Tech Publications, Switzerland.


Sun J.,Tianjin University | Luo X.,Tianjin University | Jiang S.,Sinoma Technology and Equipment Group Co. | Wang W.,Tianjin University | And 3 more authors.
Chemical Engineering and Technology | Year: 2014

A computational fluid dynamics model was developed to investigate the hydrodynamic characteristics of a novel orthogonal fixed-valve tray, which offers a larger effective contact perimeter under the same orifice area than its previously reported counterparts. The liquid-gas phases were simulated in the Eulerian framework, with the interphase momentum transfer source term based on the experimentally obtained liquid hold-up correlation. The simulation results were consistent with the experimental data. In addition, the gas hold-up profile of this new design was compared with its triangular cousin under the conditions of a typical run, showing that the former has a higher froth height, which indicated better interphase contact on the tray. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Yang Z.,Hebei University of Technology | Liu L.,Hebei University of Technology | Wang Z.,Sinoma Technology and Equipment Group CO. | Zhang S.,Sinoma Technology and Equipment Group CO.
Applied Mechanics and Materials | Year: 2013

In order to determine the high-speed Computer Numerical Control (CNC) lathe linear servo system control parameters reasonably, the linear motor feed system control model was established based on analysis of high-speed linear feed system control principle, and the linear motor feed system transfer function was established, and servo dynamic stiffness factors were analyzed. The control parameters of the servo system and actuating mechanism parameters of feed system on the effect of the linear motor servo dynamic stiffness were analyzed using MATLAB software. The simulation results show that the position loop proportional gain, speed loop proportional gain and speed loop integral response time are the biggest Influence factors on servo dynamic stiffness. The displacement response is reduced under the cutting interference force step inputting, while the position loop proportional gain, speed loop proportional gain and speed loop integral response time are increased, and the servo dynamic stiffness is increased, the number of system oscillation is also reduced, and the system tends to be stable. © (2013) Trans Tech Publications, Switzerland.


Yang Z.,Hebei University of Technology | Wang Z.,Sinoma Technology and Equipment Group CO. | Peng K.,Hebei University of Technology | Yang W.,Hebei University of Technology | Liu L.,Hebei University of Technology
Proceedings of the 2nd International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2012 | Year: 2012

In order to facilitate the students to visually understand digital integral interpolation principle and interpolation process, digital integral interpolator software system was developed using LabVIEW. The system is integrated with linear interpolation and arc interpolation modules, and every module mainly included the interpolation arithmetic initialization start function, interpolation speed control function and interpolation process real-time display function. The front and back panels of each module were designed based on LabVIEW platform, the programming flow charts were designed, and the system was tested comprehensively; the results showed that the interpolator can not only realize single quadrant linear and circular interpolation, but also can realize the span quadrant linear and circular interpolation; furthermore, it can simulate the specific interpolation process of the interpolation algorithm visually and intuitively, which can be used to assist teaching. © the authors.


Shao C.,Nankai University | Guan Y.,Nankai University | Guo C.,Sinoma Technology and Equipment Group Co. | Ju M.,Nankai University | Huang L.,Nankai University
Energy Education Science and Technology Part A: Energy Science and Research | Year: 2012

Tianjin is a typical area in China with rapid industrialization. The rapid development of the industrial economy has promoted a significant increase in industrial energy consumption. The energy consumption of Tianjin's industrial economy is over 67% of the city's total energy consumption. This paper analyzes the time series of CO2 emissions brought about by the energy consumption of Tianjin's industrial sector and explores the main factors affecting CO2 emissions through the log-mean Divisia index decomposition method. Results show the following: (1) Over the past ten years, Tianjin carbon emissions grew by only 10.70%, far lower than the level of industrial growth achieved, and the carbon emission intensity of industry showed an overall downward trend, indicating that the Tianjin industrial energy saving effect is more significant; and (2) The constant expansion of the economy is the leading cause of increasing carbon emission. Changes in carbon emission brought about by economic-scale factors accounted for an average of 57.38% of the total carbon emissions in the city Industry and energy structures showed less impact on industrial carbon emissions. Improvements in energy utilization efficiency are the most important contributor to effective industrial energy saving in Tianjin. © Sila Science.


Jiang Y.,Nanchang University | Tan Z.,Nanchang University | Liu L.,Hebei University of Technology | Wang Z.,Sinoma Technology and Equipment Group Co. | Wei L.,Nanchang University
Chinese Journal of Environmental Engineering | Year: 2014

Pulse-jet cleaning process simulation of fabric filter was conducted based on computational fluid dynamics (CFD) method, using a three-dimensional, compressible and unsteady flow mathematical model. The differential pressure on the filter bag was reported and compared with the experimental values, which verified the reliability of the simulated model. The effects of the jet pressure, jet height, filter bag diameter, filter bag length on the dust cleaning performance were studied based on the response surface methodology (RSM). A quadratic polynomial prediction model of the above-mentioned impact factors was developed and optimized. The results show that optimum differential pressure peak value was obtained when jet pressure was 0.3 MPa, jet height was 0.2 m, filter bag diameter was 0.16 m and filter bag length was 6 m. The overall uncertainty regarding the optimization and simulation results was lower than 3%. This investigation offers substantial insight for the design and the optimization of pulse-jet cleaning of fabric filters.

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