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为提高可调式栅栏减压装置作为高层与多层建筑直连供暖系统中循环装置中的减压能力,在对减压装置不同开度及不同雷诺数Re的试验基础上,得到减压装置减压效率的影响因素及其规律。结果表明,减压装置开度越大,减压效率越高;雷诺数越大,减压效率有降低的趋势。低层管网经过加压泵向高层供水时采用添加剂可提高加压泵效率及管道输运能力,采用Fluent数值模拟方法模拟了减压装置在不同浓度添加剂溶液作用下的减压规律,添加剂溶液的减压抑制率达10%~17%,抑制效果较好。
In order to improve the depressurization ability of the adjustable fence pressure reducer as a circulating device in the high-rise and multi-storey building direct heating system, based on the experiments of different opening degree and different Reynolds number Re of the depressurization device, Influencing Factors and Rules of Pressure Efficiency. The results show that the larger the opening of decompression device, the higher the decompression efficiency; the larger the Reynolds number, the decompression efficiency tends to decrease. The low-level pipe network through the pressure pump when the water supply to the high-level use of additives can increase the pressure pump efficiency and pipeline transport capacity using Fluent numerical simulation of the decompression device under different concentrations of additive solution decompression law, the additive solution Decompression inhibition rate of 10% to 17%, inhibition is better.