改建工程时,有些单位将原有的汽暖改装为水暖。如果忽略水暖与汽暖自有的特性将会留下隐患,使供热工作不能正常进行。改装工作应注意以下两个问题。一、汽暖、水暖干管的坡向与要求坡度值不一样采暖系统一般采用汽、水(汽暖为凝结水)同向流动,所以汽暖一般“低头”走,水暖“抬头”走才能保证汽、水同向流动。规范规定:热水采暖及汽、水同向流动的蒸汽和凝结水管道,坡度一般为0.3%,但 Reconstruction projects, some units will be converted to the original plumbing heating. If you ignore the plumbing and heating its own characteristics will be hidden, so that heating work can not be normal. Refit the work should pay attention to the following two questions. First, the warm air, plumbing and the slope of the slope is not the same Heating system generally used steam, water (steam condensate) flow in the same direction, so the steam generally “bow” go, plumbing “rise” to go Guarantee steam, water flow with the same. Specification: hot water heating and steam, water flowing with the same steam and condensate pipe, the slope is generally 0.3%, but