Cause the cheap boiler for heating normal outage due to natural blood pressure steam having a saturation temperature at a certain constant pressure, when the pressure change, the saturated water and saturated steam temperature change accordingly. If the boiler shutdown pressure drops too fast, the saturated water and saturated steam temperature dropped significantly. Due to the high rate of change of pressure saturation temperature at a lower pressure, because the saturated vapor in contact with the drum wall, the lower wall in contact with saturated water vapor than the thermal conductivity of water is large, the heat accumulator drum lower wall water to pass quickly the drum wall at a temperature close to the saturation temperature at the new pressure after the pressure drop, and poor heat transfer walls of the drum to maintain a higher temperature, the drum wall temperature is higher than the wall temperature, the faster the vapor pressure drop, the drum, the greater the temperature difference between the lower wall. Simultaneously vapor pressure decreased too fast, which also decreases the saturation temperature corresponding to accelerate the wall temperature waterwall, economizer header and the faster decline, due to the rapid cooling, the contraction will have a great thermal stress, local joint, at the weld easy to crack, so the boiler outage to take normal blood pressure naturally. When the normal flame boiler shutdown, soft drinks all doors should be closed, closing dampers, Manhole the boiler is in the closed state, allowed to cool down.
Steam cheap boiler for heating plant steam load is how scheduling: the replacement gas is typically an amount to replace steam load. Increased gas, steam boiler heat storage device is formed more steam increases, thereby increasing the load, such that the steam will reduce the gas load reduction. Also, the size of the replacement steam valve switch device on a steam outlet tube boiler could replace the auxiliary steam load (load reduction ambassador switching valve, the valve opening degree so that the small increase in load) steam for steam boiler plant is how to adjust the gas boiler | fuel boilers | steam boiler environmental equipment Co., Ltd.
Why steam side flow cheap boiler for heating superheater tubes can cause deviation over temperature? Although the boiler superheater tubes in parallel between the drum and the two header or headers, but because of connection of the superheater JOINT, root length of each of the superheater tubes ranging in shape is not exactly the same, will cause each flow tube superheater uniform. In the superheater heat transfer process, the main gas side thermal resistance, accounting for about 60% of the thermal resistance, and thermal resistance of the steam side is small, only 3% of the total thermal resistance. Due to the large temperature difference superheater, up to 350 a 650 ℃, affect the temperature difference between each of the tubes of the superheater heat transfer temperature difference is small, it is considered that a smaller amount of heat absorbed superheater tubes does not flow reduced, the steam temperature in the superheater tubes which are bound to increase.
Hot water cheap boiler for heating is one of the important equipment for the district to provide our real estate company, and two gas hot water provide the fast boiler boiler flotilla of environmental performance, in full compliance with state regulations after smoke was detected in the rear of the boiler. And boiler operation is safe, stable, we use the very at ease. --customer feedback
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