Hydraulic Regime Analysis of On-Off Valve Regulation

Abstract:

As an advanced heat metering method, on-off valve regulation method has good temperature-control and energy-saving effects. But its hydraulic regime is different from other existing systems, the conditions are more complicated and researches are not enough. There is an opinion that differential pressure valve should be used in the buildings consumer heat inlet. For all the questions and uncertainties, this article conducted researches by field test and program simulation analysis. The field test was conducted in a housing estate in Beijing, one buildings flow regulations influence on other buildings hydraulic regime was tested. The simulation was done in HACNet hydraulic simulation software. A pipe net model was built to simulate different working conditions. Both results indicate that systems hydraulic regime is stable and differential pressure valve is not necessary.

• Periodical: Applied Mechanics and Materials (Volumes 522-524)
• Pages: 1009-1014
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.522-524.1009
• Online since: February 2014
• Authors: Lan Bin Liu*, Ya Meng Liu, Wei Huang, Chao Luo Meng Bao, Yan Zhao
• Keywords: Differential Pressure Valve, Hydraulic Regime, On-Off Valve Regulation, Simulation

References

[1] Lanbin Liu, Lin Fu, Yi Jiang and Shan Guo: Building and Environment. Vol. 45 (2010), p.2817.

[2] Lanbin Liu, Yi Jiang and Lin Fu: Journal of HV&AC. Vol. 39-9 (2009), pp.137-141 (In Chinese).