Steam generator Before commissioning, the relevant accessories and pipes shall be checked, and then water supply shall be carried out. Before water inlet, the drain valve must be closed, and all air valves must be opened for air exhaust. When the burner is turned on, the burner enters the program control, and automatically realizes purging, ignition, flameout protection, etc. For burner load adjustment and steam pressure adjustment, refer to the electrical control principle manual of steam generator.
When there is a cast iron economizer, the circulating circuit with the water tank shall be opened; when there is a steel tube economizer, the circulating circuit shall be opened to protect the economizer during startup. When there is a superheater, the vent valve and drain valve of the outlet header shall be opened to facilitate superheater steam cooling. The vent valve and drain valve of superheater outlet header can be closed only when the main steam valve is opened to supply air to the pipe network.
debugging 0.5 ton Gas steam generator The temperature shall be raised slowly to avoid excessive thermal stress in different parts due to different heating modes, which may affect the service life of the steam generator. The time from cold furnace to working pressure is 4-5 hours. In addition, except for special circumstances, the cooling furnace shall not be less than 2 hours, and the heating furnace shall not be less than 1 hour later.
When the pressure rises to 0.2-0.3mpa, check the manhole cover and handhole cover for leakage. In case of leakage, tighten the bolts of manhole cover and handhole cover, and check whether the drain valve is tightened. When the pressure and temperature in the furnace gradually increase, pay attention to whether there is special sound in each part of the steam generator. If necessary, shut down the boiler immediately for inspection, and continue to operate after troubleshooting.
Adjustment of combustion conditions: generally, the air oil ratio or air air ratio of the burner has been adjusted when the burner leaves the factory, so it is not necessary to adjust the steam generator during operation. However, if the combustion state of the burner is found to be bad, the manufacturer should be contacted in time and a special commissioning master should be assigned to conduct commissioning.
In addition, 0.5t gas steam generator Preparations before startup: check whether the air pressure is normal, not too high or too low, and open the supply throttle of oil and natural gas; Check whether the water pump is filled with water, otherwise, open the exhaust valve until it is filled with water. Open each door of the water supply system. Check the water level gauge. The water level should be in the normal position. The water level gauge and water level color plug shall be in the open position to avoid false water level. In case of water shortage, water can be supplied manually; Check the valve on the pressure pipe and turn over the windshield on the flue; Check the knob control cabinet in the normal position.
