hot water boiler systemsketch
Pressure Fire technique of Steam BoilerBefore pressing a steam boiler, reduce the boiler load properly, and then thicken the coal seam (usually only 200 mm) according to the length of the shutdown time, and appropriately accelerate the grate speed. When the thickened coal seam reaches about 1 mm from the old eagle iron (slag baffle), stop the grate rotation, stop the drum, draw the fan, properly close the regulating board and flue baffle of the small subsection air supply, and rely on natural ventilation to maintain the weak combustion of the coal. Then discharge, raise the boiler water level to the maximum allowable water level. If the furnace fires out of the coal gate, it can start the grate again and move the coal to the steam boiler after the emergency shutdown. When the boiler needs When the operation is resumed, the operation can be resumed as long as starting the pilot, blower, adjusting smoke, wind baffle and segmented air chamber to adjust the opening of the baffle, adjust the thickness of the coal seam when the combustion is normal, and start the grate.
What is negative fluctuations in the boiler? Boiler and pressure control on a circuit called a loop, the loop control on / off may have a variety of ways. Like cooking with a pressure cooker, pressure reaches the set limit, pot into communication with the outside world, the exhaust. If you add a pressure sensor on the lid, and then performing a mounting member (e.g., a cylinder), and a processor, then, shuts the lid is controlled by an electrical circuit of this latter, from the closed to control the pot lid pressure, this is a secondary circuit. Pneumatic applications, can be understood, with a pneumatic control circuit further element of a pneumatic circuit, indirect control purposes, such a circuit may be understood as a secondary circuit.
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Boiler safety valve is the last line of defense in the protection of the boiler pressure exceeds the limit, according to the set pressure relief valve design feature, the exhaust pressure relief, to ensure the normal operation of the boiler.