Boiler temperature issues while driving
Thread Content
When starting up the synthesis unit, steam is used to warm the furnace; first, a certain liquid level is established, and then steam is used to heat the liquid. During the heating process in the synthesis tower, before the steam is integrated into the pipeline system, should the vent valve at the top of the waste heat boiler be opened? The technicians say that this helps with heat transfer ?
It doesn’t matter whether it’s turned on or not; the key is to control the rate of pressure increase, as pressure is related to the saturation temperature at which the drum operates. Of course, by opening the vent, the voltage rise speed can be slowed down, but opening the vent is not the only way to control the voltage rise speed.
When driving, the temperature of the boiler is a crucial factor; it is generally necessary to increase the temperature gradually – for example, two hours in summer, and four hours in winter! Don’t go too fast! ! ! Remember! ! !
Thank you to the friend above for their help. What the guy on the second floor meant was that if the ventilation is turned on, the heating speed will slow down, right? This is exactly the opposite of what I meant; what I meant was that when driving the furnace for a long time, by opening the vent to allow steam to flow upward, the heating rate will increase. I’m a bit confused now; I don’t know which one is correct!
Hehe, the operating temperature of a steam drum is the saturation temperature at that pressure; this is also why no temperature indicator is provided on all steam drums. By knowing the pressure, one can determine the temperature of the steam and water inside the drum, and by knowing that temperature, one can determine the temperature of the metal components of the drum. Therefore, in a saturated state, controlling the voltage rise rate is equivalent to controlling the temperature.
The saturated steam produced by the drum has the same temperature as the water in the drum. Even when venting is enabled, the temperature of the steam remains the saturation temperature corresponding to the drum pressure. It’s just that the steam moves, but the pressure remains unchanged, and the temperature also stays the same. Just by looking at the steam, one can assume that the temperature is high; after all, there’s steam at 100 degrees Celsius as well. Under negative pressure, there is also steam at temperatures below 100 degrees Celsius.