供暖锅炉在运行前要注意什么问题
    2017-4-17 15:25:42  文章来源:http://www.jnlzsb.com
    燃煤供暖锅炉在供暖前对蒸汽管道的预热 , 称为 '暖管' 。暖管的目的是使蒸汽管道及其阀门、法兰等缓慢地加热升温 , 使管 道温度逐渐接近蒸汽温度 , 为供汽做好准备。如不预先暖管 就直接送汽 , 会使管道、阀门、法兰等部件因升温不均匀而 产生热应力受损。
    Coal-fired heating boiler in heating of steam pipe preheating, referred to as the 'warm tube. Warm pipe is designed to make the steam tube and valve, flange, such as heating up slowly, make the tube temperature gradually close to the steam temperature, ready for steam supply. Warm pipe steam directly, such as advance can make the pipe, valve, flange etc caused by uneven heating of the thermal stress damage.
    另外 , 未暖管就送汽 , 管内蒸汽突然遇冷 凝结 , 会形成局部低压 , 使蒸汽挟带冷凝水向低压处冲击 , 发 生 水锤现象水锤 可使管道变形、震坏,保温层损坏 , 严重时能管道震裂。因此送汽前必须进行暖管。暖管前 , 先开启主蒸汽管道上的所有疏水阀排出蒸汽管 道内积存的冷凝水 , 然后缓慢开启锅炉主汽阀约半圈 ( 或缓慢开启旁通阀 ), 让少量的蒸汽进入管道 , 使其温度逐渐升高 , 待管道充分预热后 , 再将锅炉的主汽阀全开启。
    In addition, not warm tube sent steam, tube steam condenses, suddenly cold to form local low-pressure, make the condensed water to low pressure steam traps in shock, raw water hammer phenomena of water hammer Can make the pipe deformation, damaged, insulation damage, serious when can pipeline exploded. So send warm pipe must be conducted before steam. Warm tube former, first open all the drain valve on the main steam pipe discharge the condensed water accumulated inside the steam pipe passage, and then slowly open boiler main steam valve of about half a circle (or slowly open the bypass valve), make a small amount of steam into the pipeline, the temperature rise gradually, after waiting for pipeline fully preheat, then boiler main steam valve fully open.
    在几台锅炉同时运行时 , 当新投入运行的锅炉若有连接 主汽阀与蒸汽母管的隔绝阀时 , 隔绝阀与锅炉之间的管道也 需要进行暖管。暖管操作可以按照上面所讲的方法进行 , 也 可以在升火时就开启锅炉的主汽阀和隔绝阀前的所有疏水阀 , 利用锅炉升压过程中产生的蒸汽来缓慢预热。管道随着 锅炉的升压升温而升压升温 , 这样既省去了暖管的时间 , 又 安全方便。单台运行的锅炉。如蒸汽管道不长 , 也可采用此 法进行暖管。 暖管时, 如发现管道膨胀和支、吊架有不正常现象 , 或 有较大震击声时 , 则表明暖管升温太快 , 须放慢供汽速度 , 即 放慢汽阀开启速度 , 以延长暖管时间。若震声过大 , 应立即 关闭汽阀并开大疏水阀停止暖管 , 待查明原因消除故障后再进行。暖管结束后 , 关闭管道上的疏水阀。 蒸汽管道预热后 , 即可进行供暖锅炉。
    In several boilers running at the same time, when a new boiler in operation if there is a connection Main steam valve isolation valves, and steam mother tube between isolation valve and boiler pipe also need to be warm. Warm tube operations can be in accordance with the above method, can also be in the fire when it's open boiler main steam valve and cut off all the steam trap valve before, using the boiler booster to slow the preheating of the steam produced in the process. Pipeline booster with the booster heating boiler to heat up, save the time of the warm pipe already so, convenient and safe. A single operation of the boiler. Such as steam pipeline is not long, this method may be adopted for tube. Warm tube, such as pipe expansion and bronchitis, hanger have found abnormal phenomena, or to have the strong earthquakes strike, suggests that a warm tube heating up fast, steam supply must slow down, the valve opens a little slower, to extend warm time. If the earthquake sound is too big, should be quickly close the valve and stop up trap warm tube, eliminate the fault and then to find out the reason. After the warm pipe, steam trap shut down the line. Steam pipe after preheating, heating boiler can be achieved.
    感谢大家在百忙之中关注我们发布的产品信息,如果你想要了解更多,可以来我们公司咨询。我们欢迎大家的光临,并与你的合作!
    Thank you in spite of being very busy toglance attention we publish product information, if you want to learn more, you can come to our company. We welcome everyone's presence, and the cooperation with you!
<友情连结> 新利18luck jxf吉祥坊 云顶斗地主