Gas fired boiler is mainly composed of combustion machine, boiler furnace body, computer control system. Gas fired boiler combustion machine: combustion machine sets electricity, device, oil, gas in one. High degree of integration, high degree of automation, is the focus of boiler system maintenance. Boiler furnace body: boiler furnace body is the main component to realize heat energy conversion. Computer control system: computer control system is the core component of the whole boiler operation, is the boiler command center. Gas fired boiler maintenance can be divided into wet maintenance and dry maintenance, we will introduce one by one below.

First of all, the series of steam boiler system maintenance is particularly important. Burner maintenance: clean the burner, ignition device, filter, oil pump, motor and impeller system, add lubricant to the air door connecting rod device. Re-test the burning condition. Controller maintenance: overhaul and test electrical components, control lines, clean control box ash collection, and test each control point. Finally, seal treatment is carried out. Protect the controller components from moisture. Water supply system maintenance: check the water treatment device, check whether the water quality is up to standard, clean up the water treatment system, check the operation of the water pump and head, check whether the pipeline valve can be used flexibly, etc. Water is cut off and power is cut off. After the system is full of water, close the valve. Furnace body maintenance: in order to make the boiler run safely and economically for a long time, it is necessary to strengthen the maintenance of the boiler in daily use. This is also an important measure to prevent the reduction of thermal efficiency, to avoid the deterioration of the use state and boiler accidents.

Gas fired boiler maintenance, wet maintenance is generally applicable to the shutdown period of not more than a month of boiler. After the boiler is stopped, the water in the pot is exhausted, the scale and soot are removed, and all manholes, hand holes, valves and so on are closed, completely isolated from the operation of the boiler. Then add softening water to the lowest water level, and then use a special pump to inject the alkaline protection solution prepared into the boiler. The composition of the protective solution is: sodium hydroxide (also known as caustic soda) per ton of pot water plus 8-10kg, or sodium carbonate (also known as soda) per ton of pot water plus 20Kg, or trisodium phosphate per ton of water plus 20Kg. When all the protective solution is injected, open the water supply valve and fill the boiler with softened water until the water emerges from the air valve. Then close the air valve and water supply valve and open the special pump for water circulation, so that the solution is evenly mixed. The role of the protection solution is to make the heating surface of the boiler gradually form a layer of alkaline water film, so as to protect the heating surface from oxidation corrosion. During the whole maintenance period, to regular light oven, in order to keep the heating surface outside dry; To open the pump regularly for water circulation, so that the concentration of the solution is consistent; Periodically take the solution and test it. If the alkalinity decreases, it should be added. Take anti-freezing measures in winter.

Dry maintenance is suitable for a long time to stop the furnace, especially in summer out of use heating hot water boiler. After the boiler is stopped, the water in the pot is exhausted, the valve on the heating pipe, the water supply pipe and the sewage pipe is closed, or the partition is blocked, and the boiler in operation is completely isolated from other boilers. Then open the manhole to allow the drum to dry naturally. If the boiler room is wet, it is best to use the micro fire to the boiler body, and the furnace wall, the flue drying, and then the desiccant, such as lump calcium oxide, also known as quicklime according to the boiler volume per cubic meter plus 2-3kg, or with cloth bags hoisting in the drum, to absorb moisture. Finally, close all manholes and hand holes to prevent moist air from entering the boiler. After every half a month or so to check a heating surface without corrosion, and timely replacement of failure of desiccant.

Gas fired boiler maintenance through the application of new technology, new equipment, the use of gas control system to do a good job of management is to improve the safety level of gas users. It also changes people’s cognition of gas safety, and then enhances the concept of gas operation management. The transformation of gas safety concept will promote the promotion and application of new technology, which gradually forms the healthy development of gas user safety system. The establishment of safety system will form all-round protection for gas users and achieve the most ideal effect.