Paddy Bran Horizontal Water Boiler

Factors affecting the safe operation of the daily atmospheric boiler which: (1) When atmospheric pressure using the direct pressure hot paddy bran horizontal water boilers and water heating system or closed loop. That is, on the boiler body with the atmosphere of the exhaust pipe as a return pipe use, the boiler water pressure is always in full state. This closed loop harm in two ways: The first is when the water temperature is too high furnace, steam generated can not be excreted, so the pressure will continue to rise, explosions and spills can happen at any time. Second, even if the boiler water temperature is not high, it does not produce a large amount of steam, but the role of a circulation pump, the boiler body is subjected to high pressure hot water circulation.

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Henan burner safety control requirements of a gas-fired boiler 1, Henan gas boiler burner gas pressure low limit protection Henan gas boiler burner stable combustion has a certain range, allowing only gas pressure fluctuations within a certain range. Object defining high and low pressure gas is to ensure flame stability: not from the fire, flame does not tempered, while defining thermal power output of the burner, to ensure safe operation of the device. When the gas pressure exceeds this range, the work should be locked burner. Usually a gas burner design pressure switch sensing pressure signal, and outputs a switch signal for controlling the burner of the corresponding work. 2, Henan gas boiler burner air pressure is less than maximum design thermal strength protective Henan gas boiler burner, which uses combustion blower compulsory. If the fan failure caused by lack of air or air interruption, immediately cut off the gas, deflagration or otherwise tempering furnace blower to occur. Thus, while improving the quality of the fan, gas control to be linked with the air pressure, when there is insufficient air pressure, immediately cut off the gas supply. Usually gas pressure switch senses the air pressure signal, and outputs a switch signal to the respective operation control of the gas solenoid valve.

Matters needing attention and standard flow of boiler periodic sewage discharge operationOperational notes and standardized procedures for boiler periodic discharge: 1. Periodic Sewerage notices 1. The main value of the furnace should be contacted before the discharge is discharged, and the steam turbine can be approved before it can be carried out. 2. When discharging water level is normal, after discharge, check whether each sewage door is closed tight. 3. Sewerage doors should not be opened to more than 30s, can not open two or more sewage doors at the same time, in order to prevent damage to the water cycle. 4. Open the drain door slowly in case of water shock. In case of water shock, close the valve until the shock disappears, and then slowly open the drain door. 5. When operating the valve, you should stand on the side of the valve, strictly prohibited Right to the valve. II. Discharge operation flow 1. After receiving the scheduling task, labor protection supplies dressed neatly, with a special F wrench, on the spot open the general gate. 2. Open all the doors, contact the DCS screen of the furnace to open the corresponding discharge electric door, after the discharge, first close the second door, then close the door, one by one, one by one. All sewerage is over, close once door of each discharge and main gate of sewerage 3. When discharging water, we should pay close attention to the water level. If there is any abnormal water level or accident, the discharge should be stopped. For 2 hours, the door cores of each discharge door shall be checked for leakage, and if the drain is lost, the drain door shall be opened promptly once. Note by removing residue that may be stuck in the core of the door (boiler principal value should be contacted before operation): the whole drainage process should be in close contact with the DCS operator.