Steam generator It is a general-purpose equipment, which is widely used. However, many people will have such questions when using it. The steam generator needs to be blowdown after a period of use. How does the steam generator blowdown work? today, Henan D-class gas boiler manufacturer Let's have a look!

The boiler water with high concentration of salts and impurities 100~200 mm below the evaporation surface is continuously discharged out of the boiler through the external blowdown device. The control of continuous discharge is adjusted by opening the needle valve on the discharge pipe. The opening of needle valve is determined by the results of boiler water. In order to avoid misoperation, the opening position is usually locked after adjustment.

For electric heating steam boilers with large capacity, in order to improve the thermal efficiency of the boiler, the sewage discharged in succession can first flow into the pressure expansion tank (external blowdown flash tank) to recover the secondary steam generated by the pressure drop. Waste water is lifted out from the expansion tank.

Henan D-grade gas Boiler manufacturer It means that the sewage system is clear of the impurities in the water in the machine and keeps the chemical composition content within the specified range. The sewage discharge methods are divided into continuous sewage discharge and regular sewage discharge. The former is to continuously discharge water with high salt concentration, reducing sodium salt, chloride ion, alkaline ion and suspended solids in water to control water quality; The latter has a short sewage discharge time, mainly to clear the impurities, rust, dirt and other sediments at the bottom. The sewage discharge parts of the two are different, and the impurities are also different, so it is more important. When the sewage discharge is large, the water level inside is lower than the water level line or the dry boiler, the water pump cannot be started, and water cannot be added to the equipment at this time, and water can only be added manually after cooling. In short, maintaining the safe operation of the steam generator can prolong the service life of the machine.

That's all for sharing the above points, Henan Grade D Gas Boiler Factory I believe we will have some understanding after reading!