When the boiler is shut down, the temperature of the heat transfer oil can be reduced to below 70 ℃ before the shutdown of the hot oil pump. In case of sudden power failure, extinguish the fire immediately, and then implement the operating procedures. Otherwise, the furnace tube will be burned out and the loss will be large. According to the type of heat transfer oil boiler, heat transfer oil shall be reasonably selected to prevent overheating. Shaanxi Horizontal gas steam generator When purchasing unqualified heat transfer oil, do not save money or mix heat transfer oil indiscriminately. Otherwise, the consequences will be very serious. Prevent the oxidation of heat transfer oil. The strict heat transfer oil is more than 50 degrees in contact with the air, which will make the heat transfer oil crack. Its speed is amazing, and the consequences are relatively serious. After normal operation, the test crew needs to close the exhaust valve on the auxiliary exhaust pipe. After 6 months of use, the heat transfer oil must be sampled and tested according to the instructions. If problems are found, the heat transfer oil must be replaced immediately. small-scale Horizontal gas steam generator manufactor However, it should be noted that different types of heat transfer oil should not be mixed. The circulation speed of the heat transfer oil should not be less than 1.5m/s. Due to the excessive temperature difference between some entrances and exits, the original design requirements were destroyed, the heat transfer oil could not maintain the original circulation state, the boundary layer became thicker, and the thermal resistance became larger, making the furnace wall exceed the oil film temperature, leading to carbon deposition, cracking, polymerization, coking, and even burning through the furnace tube.

In daily life, pressure vessels are divided into those in contact with fire sources and those not in contact with fire sources. In fact, pressure vessels also need anti-corrosion in daily life. For the anti-corrosion of pressure vessels, we need to do the following. Shaanxi Horizontal gas steam generator First, check the structure of its equipment components, safety valves, bursting discs, emergency vent valves and other collective Yixing pressure tanks to see if there is any corrosion. Once corrosion occurs, measures should be taken in a timely manner. Anti rust paint should be painted before the equipment is used. After use, it should be cleaned in a timely manner to ensure the cleanliness of the equipment. small-scale Horizontal gas steam generator manufactor Secondly, it is necessary to protect the safety device of the pressure vessel. The safety device is an important device of the pressure vessel. Good protection should be carried out. Good maintenance should be carried out before and after use. It is necessary to apply lubricating oil and antirust paint.

Inspection and use preparation of oil and gas boiler. Inspection of the furnace and flue, and the soot and sundries in the furnace and flue shall be removed. Shaanxi Horizontal gas steam generator Check the boiler accessories to see if they are in good condition; Whether the cock can rotate easily; Whether the instruments and control devices are in good condition and clean. After inspection, the pressure gauge cock shall be in working condition. Check the automatic control system. Check the auxiliary equipment of oil and gas boiler. Check the combustion equipment to see if the combustion equipment is in good condition; For mechanical transmission system, coal handling system and ballast system, the test steering is normal; The spring of the gearbox shall be properly compressed and lubricated; The indication of coal door gauge is correct. small-scale Horizontal gas steam generator manufactor The eagle iron is neat and complete, and the ballast plate is complete. Check the heating surface and ensure that the equipment coupling is firmly connected; V-belt is loose properly; The lubricating oil is in good condition; The cooling water is smooth. After passing the test, install the protective cover, test run separately, and pay attention to the current during idling.

After the cold furnace of oil fired and gas fired boiler is ignited, the speed of temperature rise shall be controlled at 10 ℃/hour, mainly because the viscosity of oil temperature is large when it is cold, and the flow rate in the heating surface pipe of the whole equipment is relatively low. Shaanxi Horizontal gas steam generator The oil film on the pipe wall is thick, so the heat transfer condition is poor when in use. If the heating speed of oil and gas fired boiler is too fast during use, it is easy to make the local oil film temperature too high. The equipment is in the stage of driving away the residual moisture and moisture contained in the heat conduction fluid in the system within the temperature range. small-scale Horizontal gas steam generator manufactor In oil and gas fired boiler, when the steam exhaust volume at the vent pipe of the expander is relatively large, there will be water hammer at the bottom of the equipment. In this way, the vibration of the pipeline will accelerate, and when the swing amplitude of the pressure gauge pointer in each part of the equipment is large, the temperature rise will be stopped and the constant temperature state will be maintained.

Diaphragm air pressure tank is an energy storage device composed of a steel shell and a rubber diaphragm liner. The rubber diaphragm completely separates the water chamber from the air chamber. When water with external pressure is filled into the liner of the diaphragm air pressure tank, the air sealed in the diaphragm air pressure tank will be compressed. Shaanxi Horizontal gas steam generator According to Boyle's gas law, the volume of gas becomes smaller after being compressed, and the pressure increases to store energy. The expansion of compressed gas can press the water in the rubber diaphragm out of the tank. Diaphragm pressure tank is widely used in central air conditioning, boiler, water heater, frequency conversion and constant pressure water supply equipment. It can buffer the pressure fluctuation of the system and eliminate water hammer to stabilize the pressure and unload the load. small-scale Horizontal gas steam generator manufactor When the water pressure in the system changes slightly, the automatic expansion and contraction of the diaphragm air pressure capsule will have a buffer effect on the change of water pressure, which can ensure the stability of the water pressure in the system, and the water pump will not be opened frequently due to the change of pressure.