五、蒸汽喷射泵在采暖系统中的工作点和水力工况分析喷射泵在采暖系统中的工作点受喷射泵本身的特性方程和采暖系统的管网特性的共同制约。因此需要与系统结合起来分析。(一)喷射泵单台工作的采暖系统运行时喷射泵产生的扬程应与采暖系统的阻力相等,将单台喷射泵工作时本身的特性方程式(5-1)或(5-2)同管网特性方程(5-3)或(5-4)联立,得出喷射泵工作点的方程。(r+s)u~2p_0~2-αp_0+βp_x=0 V. Working points and hydraulic working conditions of steam jet pump in heating system The working point of the jet pump in the heating system is jointly controlled by the characteristic equation of the jet pump itself and the pipe network characteristics of the heating system. Therefore, it needs to be analyzed with the system. (1) The head of the injection pump operated by the single injection heating system of the jet pump shall be equal to the resistance of the heating system, and the characteristic equation (5-1) or (5-2) of the single injection pump shall be the same. The network characteristic equations (5-3) or (5-4) are combined to obtain the equation for the injection pump operating point. (r+s)u~2p_0~2-αp_0+βp_x=0