What are the basic operating procedures of natural gas steam boilers?

(1) Start operation: \ x0d \ 1. Operators must first obtain the qualification of firemen and hold relevant certificates. The person in charge of the operation should read the instruction manual of the equipment carefully and master the knowledge and methods of safe operation. \ x0d \ 2。 Check whether the gas valve is open before each start, otherwise the burner will not work. \ x0d \ 3。 Start the power control button on the control cabinet. At this time, the digital display window will display the current furnace pressure. Refer to the boiler controller manual to judge the pressure level. \ x0d \ 4。 After the burner is started, the fan should be pre-purged for 30-50 seconds, and then the gas valve should be opened; That is, build a flame. (Please refer to the burner instruction manual for the specific combustion process) \ x0d \ 5. The start and stop of the burner is given by the boiler controller according to the change of pressure. (This function is fully automatic) The operator should observe the change of pressure at any time, and stop the car and stop the fire immediately if there is any abnormal phenomenon. \ x0d \ 6。 In the process of boiler operation, operators should observe the water level at any time, especially to ensure that the supplementary water tank is full of water. Operators should regularly discharge pollutants from the boiler to ensure the water quality of the boiler. \x0d\7。 If there is any abnormal phenomenon in the operation of the boiler, the operator should immediately stop and restart after handling the fault. \x0d\8。 For the burner operator who uses three-phase power supply, it is necessary to determine the forward and reverse rotation of the motor before the first start, otherwise it will not be able to ignite normally. (At this time, the internal combustion engine fan stops after starting for more than ten seconds, and the control box gives an alarm) \x0d\ (2) Shutdown operation: \x0d\ 1. There are two kinds of shutdown: first, when the pressure in the furnace reaches the set value, it automatically stops, and the operator does not need to do anything at this time. \x0d\2。 Secondly, during manual shutdown and succession shutdown, the operator should press the stop button of the boiler controller to turn off the burner and then turn off the controller; After the burner stops completely, disconnect the main power supply. \x0d\3。 When the downtime is long, close the gas pipeline valve to avoid the danger of leakage.