What are the gas-fired boiler valve instrument, have any effect: In recent years, with the strengthening of China's environmental protection efforts, high low emissions, efforts to clean gas boiler gradually become the mainstream products on the market. However, to get gas boilers to maintain normal operation, there is more than boiler, but also supporting auxiliary equipment and instrumentation valves. Among them, the instrument is a major control the operating parameters of the boiler accessories, is very important.

You have to know the energy consumption of the boiler (main steam temperature) reason for the main steam temperature problems (1) the following main steam temperature increases on 1.1 furnace boiler flame center shift, furnace outlet temperature. 1.2 coal increased too fast. 1.3 coal volatiles reduced, thicker coal, water increases. 1.4 Excess air amount is increased. 1.5 pulverizing system start-stop. 1.6 improper adjustment of automatic control by warm water. 1.7 superheater sootblowing poor choice. 1.8 feed water temperature is low. (2) The following main steam temperature decreases the flame center biasing 2.1: burner tilt deviation, hem; burner is switched from the upper to the lower layer, the lower layer or to an excessive amount of the powder. 2.2 coal volatiles increased, thinning coal moisture reduction. 2.3 superheater heating surface fouling, slagging, fouling the interior. 2.4 boiler drum water separation is poor. 2.5 Save the hot water drain valve. 2.6 automatic adjustment inappropriate, excessive desuperheating water. 2.7 furnace or serious deterioration of water quality of soft drinks were vacated, occur. 2.8 feedwater temperature. 2.9 economizer and water wall inappropriate choice sootblowing time. 2.10 coal reduced too quickly.

When fully completed by the end of 2017 urban 10 tons of steam / 10-20 tons of steam boiler regulation task and gas pipeline network coverage of the coal / coal-fired boiler renovation work, fully completed before the end of 2018, 20 tons of steam urban / when more than 35 tons of steam / h coal-fired boilers and renovation work. Before the end of 2017, high-pollution fuel combustion zone ban all types of urban areas in high-pollution fuel boiler to stop using all, or switching to natural gas, liquefied petroleum gas, electricity and other clean energy.

To help businesses to reduce costs to switch to clean energy, the program presents a series of supporting policies and measures, establish clear criteria subsidies, subsidies for the 2017,2018 two years time.

Boiler blowdown regularly operating precautions and standardize the process of boiler blowdown regularly handling precautions and standardize the process: a periodic sewage Note: 1 before the sewage should contact the principal value of the furnace, and get consent before proceeding turbine. 2. When the sewage water level to maintain normal after sewage, sewage check the door is closed tight. 3. When the doors open sewage should not exceed 30S, can not open two or more sewage doors to prevent damage to the water cycle. 4. The door should open the drain slowly to prevent water hammer occurs. The water valve off a small impact should occur until the water impact disappears, and then slowly open the drain door. The operation of the valve should stand side of the valve, the valve timing is prohibited. Two blowdown flow operation: 1. After receiving the task given row, PPE dressed, F bring special wrench, open the given row situ total gate. 2. once the door fully open, contact fireman DCS screen to open the corresponding electric door sewage, sewage finished, first off the secondary door, shut the door once, by-road in turn. All sewage finished, close the door once each sewage and sewage overall door. 3. sewage, should pay close attention to the water level, the water level there is any abnormal or accident, it should stop the sewage. 4. sewage 2 hours, should check whether each door door cores sewage leakage, such as sewage drain should quickly open the door again to drain the residue may be caught at the door core (boiler should contact before the main operation value). Note: The whole process should be done and sewage closely DCS operator.