应用水射器补水加压的热水供暖系统可靠性分析

RELIABILITY ANALYSIS OF HOT WATER HEATING SYSTEM USING WATER INJECTOR TO SUPPLY WATER AND INCREASE PRESSURE

在热水供暖系统中,采用水射器自动补水加压是笔者前几年提出的一种新型系统型式。本文针对在实际使用过程中可能出现的问题,应用水压图及伯努里方程,对应用水射器补水加压的热水供暖系统水力工况、吸上真空度等进行了分析和计算。结果表明:在热水供暖系统中,应用水射器补水加压不会出现气蚀现象。系统具有较高的可靠性和稳定性。这为推广应用这种系统形式奠定了基础。

We put forward several years ago a new system where the water injector was used to supply water and increase the pressure automatically in the hot water heating system.The hydrodynamic condition and the sucking vacuum that may ap- pear in such a system are further analyzed and calculated here by means of the wa- ter pressure chart and the Bernoulli equation.The results indicate that the vapor erosion can be avoided by proper design,and that the system is reliable.This lays a foundation of wide application of the system.