Compared to atmospheric pressure hotwaterboiler, operational principle and characteristic of vacuum hot water boiler are narrated.
叙述了真空热水锅炉的工作原理、特点以及与常压热水锅炉的性能比较。
2
The design and lectotype of circulating pump, automatic return water switch valve, expansion tank and atmospheric connection pipe in atmospherichotwater heating boiler room are discussed.
对常压热水供热锅炉房的循环泵、回水自动启闭阀、膨胀水箱、大气连通管的设计选型进行了探讨。
3
The safety design of gas supply system, hotwater circulation system, alarm system and so on in atmospheric gas hot-water heating boiler room is discussed.