|
|
|
| Flow pattern of shunt heat meters |
| ZHAO Guangxia1,2, XU Kun1, CHEN Fengming3 |
| 1.School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Department of Electrical and Mechanical Engineering, Zhenjiang Vocational Technology College, Zhenjiang, Jiangsu 212016, China; 3.Department of Mechanical Enginee-ring, Zhenjiang College, Zhenjiang, Jiangsu 212013, China |
|
|
|
|
Abstract In the light of a new type shunt heat meter structure model, by the using the of relevant theo-retical knowledge and the RNG fluid turbulent model, we established the mathematical model of different eccentric angles and opening sizes of the eccentric flow.By using fluent simulation software, We analyzed the shunt structure of the shunt heat meter and internal fluid motion characteristics.For the simulated flow channel model, by using the computational fluid dynamics method,we numerically si-mulated and analyzed different channel width flow field after flow passage structure optimization. The simulation results show the turbulence characteristics of flow in the headbox flow field, and analysis shows that the deflector with triangular pillar bumps has good effect on enhancing the turbulence intensity in the grooves of headbox. By optimizing the opening and eccentric angle of the flow channel, the paper provides a theoretical basis for the measurement accuracy of the shunt heat meter.
|
|
Received: 06 July 2017
|
|
|
|
| [1]宋明启.集中供热分户热计量技术综述[J].低温建筑技术,2014(9):19-22. SONG Mingqi. Central heating household heat metering technology overview [J]. Low temperature construction technology, 2014(9):19-22.(in Chinese)[2]李继友. 注聚合物井的分层测调技术研究[D].哈尔滨:哈尔滨工业大学,2012.[3]冯玉龙.分流式热量表结构原理的模拟研究[D].西安:陕西科技大学,2015.[4]STEPHEN L T,MICHAEL S,EDSON L M. Design of a heat pump water heater performance monitoring system[J].Journal of engineering design and technology,2016(4):739-751.[5]SI Qiaorui, YUAN Jianping, YUAN Shouqi, et al. Research article numerical investigation of pressure fluctuation in centrifugal pump volute based on SAS model and experimental validation[J]. Advances in mechanical engineering,2014(1):323-328. |
|
|
|
