1 range
This operating procedure is applicable to the operation of steam boilers.
2 content
2. 1 steam boiler is the process equipment of high pressure vessel. Operators must be familiar with the structure, performance and design description of the boiler, and can operate independently only after passing the technical operation examination and obtaining the operation certificate. You must wear neat labor protection articles when you are on duty.
2.2 Before ignition, all parts of the boiler-indicators, circuits, valves, cocks, pipes, water level gauges, pumps, nozzles and various safety devices, etc. It should be checked according to the procedure, and it can be started only after it is confirmed that there is no abnormality or leakage.
2.3 Only after checking and confirming that there are no people and foreign bodies in the flue and furnace can the hole be sealed.
2.4 After startup, check and confirm the following items according to procedures: water level gauge; Action of water supply device; Low water level cut-off action; Pressure switch action; The pressure proportional controller acts; Safety valve action.
2.5 In the operation of the boiler, sewage should be discharged regularly (once per shift in principle). When discharging sewage, it is forbidden to tap with a hammer or other objects to open the drain valve, and the water level gauge should be flushed once per shift.
2.6 When the boiler is running, the operating personnel shall not leave their posts without leave, and shall patrol inspection on time (generally, the inspection shall be conducted once every half hour and recorded once every hour).
2.7 patrol inspection should wear gloves, can't touch the heat conduction parts with bare hands, and wear protective glasses to observe the combustion of the furnace.
2.8 In case of alarm failure, non-stop furnace alarm or automatic control alarm, if the on-site treatment is invalid or cannot be handled, the furnace shall be stopped immediately, and the leadership shall be reported in time for handling.
2.9 In any of the following circumstances, stop the furnace immediately.
A) The steam pressure rises beyond the pole. Although the water supply is strengthened and the safety valve has eliminated steam, the pressure continues to rise.
B) severe water shortage
C) the water level drops rapidly (although water is supplied, it is still falling)
D) water level gauge, pressure gauge, safety valve, etc.
E) the furnace wall is damaged and there is a lot of smoke.
F) water supply equipment failure.
G) Leakage at the joint of furnace body, deformation, blistering or crack of steel plate.
H) The boiler is full of water, and it will not drop after drainage.
I) For the safety of operators, when serious combustion or other dangerous conditions are found at the back of the flue.
J) The boiler suddenly appears serious alkali smoke or the furnace body vibrates violently.
2. When10 needs to be overhauled in the furnace, it must be stopped to cool to room temperature and fully ventilated before it can be carried out. In case of emergency, measures such as forced cooling and heat insulation can only be carried out after the approval of the leader, and a special person is responsible for safety monitoring.
2. 1 1 When the chain boiler is running, its steam pressure, wind pressure and temperature shall not exceed the specified pressure.
2. 12 The safety valve shall not be dismantled or destroyed without permission. If the safety valve can't automatically exhaust steam during operation, it should report to the leader in time, manually lift the exhaust steam of the safety valve and repair it.
2. 13 In case of general water shortage, the "water calling" inspection shall be conducted immediately; In case of serious water shortage, stop the boiler immediately and stop the water inflow; Under the condition of no serious water shortage, the water inflow may be slow and small, but the changes of various instruments should be closely monitored.
2. 14 When the boiler is shut down and put out the fire, the fireman shall not leave his post before the wind pressure drops to zero.
2. 15 slag should be cleaned regularly and piled up at fixed points.
2. 16 Before the succession, all kinds of instruments, alarms and safety devices of the boiler system must be checked and confirmed to be in good condition, correct and sensitive.
3 record
3. 1 fireman's handover record