For SZS series gas boilers, how to seal the unit and what to do in case of air leakage?
Thread Content
Is it acceptable to seal the convective tubes on the outer layer of the upper and lower drum shells with refractory mortar? What to do if there’s a leak?
Convection tubes are generally sealed with refractory bricks and refractory mortar, and the expansion joints caused by thermal expansion and contraction will inevitably leak, which is why boilers experience air leakage.
Does a gas boiler leaking air not easily lead to leaks? Also, if the refractory mortar falls off, isn’t that dangerous?
There is air leakage in the gas boiler; since the boiler operates under negative pressure, this reduces its efficiency； The problem of refractory mud falling off can basically be resolved by following the furnace construction procedures and leveraging experience in furnace construction.
The outer water wall uses pattern walls.
Do gas boilers operate at a slight positive pressure?
Gas boilers don’t have exhaust fans, so they operate at a slight positive pressure, right?
Can a membrane wall with an angle work as well?
I think you’re right too. There is no exhaust fan. There is only one blower. It should operate at a slight positive pressure.