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在垂直单管热水采暖系统的管路计算中,按不等温降的水量分配计算法,早已在异程系统中得到应用。但这种方法带有试算性质。对于同程系统,现在一般仍按等温降计算。规范规定同程系统各并联环路之间的压力损失差额不超过10％,这在某些系统中未必能轻易做到,而且,其计算方法是试算的,对各并联环路的水力平衡无计算公式可循。如果能在同程系统中,也用不等温降的水量分配计算法,并能用公式计算,那么,就可以从理论计算上使各并联环路之间的压
In the calculation of pipelines in the vertical single-pipe hot water heating system, the calculation method of water distribution according to non-isothermal drop has long been used in the off-road system. However, this method has a trial nature. For the same-range system, the isothermal drop is still generally calculated. The regulations stipulate that the pressure loss difference between the parallel loops of the same-way system shall not exceed 10%. This may not be easily achieved in some systems. Moreover, the calculation method is trial calculation and the hydraulic balance of the parallel loops. No formula can be followed. If in the same-range system, the method of water distribution with non-isothermal drop is also used, and the formula can be used to calculate, then the pressure between parallel loops can be theoretically calculated.