烟囱印章

烟囱密封意味着什么？

烟囱密封件安装在卫生沙井中，以便保持渗透水进入人孔。一种耐用的材料用于在人孔框架内提供密封件，使其牢固地将人孔顶部保持在潜水状态。

Chimney seals are available as both external and internal seals and are available in different application types, such as epoxy internal chimney seal, heat applied sheeting external chimney seal and rubber sleeve internal chimney seal.

Trenchlesspedia Explains Chimney Seal

Inflow/infiltration (I/I) can be prevented by using chimney seals in manholes. Storm water runoff and surface water during rainy season can easily find their way into manholes, posing flooding problems during excessive rainfall.

In the epoxy internal chimney seal, the area to be sealed is sandblasted and then cleaned of dust and dried. Primer is applied up to 2" above and below the area to be sealed and epoxy is applied in two parts.

In heat applied sheeting external chimney, the area to be sealed is cleaned of debris and dried. The required size of sheeting with overlap is cut and stuck in the area after which a propane torch is used to dry and set the sheet in place. A primer is applied on the sheet over which the second sheet is wrapped and heated untill the desired bond is achieved.

在橡胶套内部烟囱密封中，采购了基于人孔直径的橡胶套筒的正确尺寸。将要密封的区域良好清洁并平滑以确保良好的密封。钢夹带安装在凹槽中并拧紧。