Recently, Chengdu issued the "2019 Chengdu air pollution prevention and control action plan" to optimize adjustments programs around the industrial, energy, transportation, land use structure, proposed Yajian coal, pollution abatement, control car cut oil, clean dust, haze rule technology, integrated law enforcement operations as well as six 50 detailed measures.

According to the provincial government issued the goal of improving air quality in 2019, Chengdu PM2.5年均浓度控制在 year 52 micrograms / cubic meter and below, the number of days of good air quality rate of 67.6% and above.

Chengdu six proposed action, emphasizing the Internet technology means to achieve "smart governance gas": First, accelerating into the key source of business to install online monitoring equipment; the second is the full implementation of the wisdom of the site management platform in the city's housing construction and municipal construction site, to build green construction demonstration sites; Third, establish and improve municipal departments emissions inventory information sharing liaison mechanisms and environmental systems City - District - the town (street) three emission inventory liaison mechanisms; Fourth, focus on road vehicle emissions, drawn dynamically updated mobile source pollution maps.

At the same time, promote green industrial development, increase efforts to eliminate high energy consumption and high pollution industries: on the one hand, continue to promote coal-fired boiler, "clear" work; in an orderly way in key areas of old gas (oil) boilers implementation of clean energy transformation; increase industrial furnaces efforts to eliminate non-compliance. On the other hand, the promotion of green travel, speed up the process of rail transit; in public transport, sanitation, landscaping, postal and other fields of new energy vehicles, accelerate the construction of charging (change) station, charging pile.

20 tph WNS gas-fired fire tube boiler project for biotechnology industryA wns oil fired steam boiler supplier is one of the essential facilities of enterprises, which has a direct impact on the quality of the production line. YAN TAI HAI RUN SI BIOTECHNOLOGY Co., Ltd. specializes in manufacturing and wholesale of food and feed supplements as well as extension service of biotechnology. This company planned to expand business scope and invest 200 million yuan for the new production project of enzyme protein. As the country has been strengthening the comprehensive control of air pollution in industrial enterprises, and promoting the transformation construction of coal to gas and coal to electricity in recent years, the company decided to purchase one set of 20tph low NOx natural gas-fired steam boiler to response to the national call. With outstanding advantages of quality and service, ZOZEN won the favor of YAN TAI HAI RUN SI BIOTECHNOLOGY Co., Ltd.. ZOZEN provided the company with the WNS series gas-fired (oil-fired) boiler. This series gas-fired (oil-fired) boiler has wide fuel adaptability, which is applicable to a variety of fuels, including natural gas, coal gas, diesel and many other fuels. Furthermore, it adopts a large-diameter corrugated furnace and the high efficiency heat transfer element thread smoke tube to ensure the complete combustion of fuels; the thermal efficiency can reach above 98%. It is also equipped with an advanced low NOx burner imported from Europe to achieve the ultra-low NOx emissions. Both the product performance and exhaust emission entirely meet the actual requirements of the company.

Commissioning of Boiler gas boiler commissioning must be carried out after the hydrostatic test. Before commissioning, should be a comprehensive inspection of each furnace parts, electronic control devices, wiring, etc. are normal, water supply, oil furnace if opened, electrical contacts are in the set position. 1, depending on the size of the fuel consumption, the initial damper, the hydraulic pressure. 2, the power is turned on, the power switch to open the cabinet, the water pump starts furnace, (if the pump is rotated into the anhydrous, pump purge valve is opened, the air exhaust pump). 3, control checks whether the normal water level electrode. 4, check the burner operation is normal. Starter burner starts combustion when the water level rose to a predetermined level, the start of combustion is normal to observe: Start no vibration noise, stable combustion, no smoke, orange yellow flame, burning bright clear. Otherwise, to make the appropriate adjustment (refer to burner instructions). Note: The oil pressure between 0.8 ~ 1.0Mpa, after a good tune, do not easily change, oil pressure is too high or too low have an effect on burner performance life. 5, check the pressure gauge pointer swing is smooth, with or without loosening stuck. 6, whether the discharge check valve is set at the set pressure steam: Pressure controller first maximum working pressure, a safety valve is adjusted to the set pressure higher than 0.05MPa, when the furnace pressure was raised to whether the exhaust pressure setting, if exhaust , pulling the safety valve a few times, and try again, if not enough to deal with safety valve to adjust. Pressure relief valve setting: boiler rated pressure + 0.03MPa. 7, check the electrical contacts of the operation: When the pressure is raised to the maximum working pressure (not exceed the rated working pressure), should stop burning, open the safety valve blowing off steam, the pressure to a minimum operating pressure (maximum operating pressure is generally lowest set to 0.10MPa), combustion burner should be restarted. Note: When the adjustment screw should slow, especially when the pointer approaches the end, otherwise, damage the screw off the wire.

Coal-fired boilers to gas boilers benefits and precautions With the rapid development of national energy-saving environmental protection, the traditional coal-fired boiler can not meet the needs of the times. Therefore, the coal-fired boiler biomass boiler or gas boiler has become in many boiler user's choice. Before the transformation, to understand the difference between .1 and gas boiler fired boiler. Circulating fluidized bed combustion boiler fired by coal crushing device fluidized combustion process, the coal by crushing device percutaneously into the bunker through a the spreading coal coal injecting air into the furnace; circulating ash by heating, fluidized combustion process. When the coal into a gas fuel is injected directly into the combustor for combustion. 2. Combustion of Coal is mainly composed of C, H, O, N, S, ash and moisture and other elements. Generated when coal SO2, SO3, NOx ash and moisture, and SO2, SO3, NOx from flue gas emitted into the atmosphere, pollute the environment and cause harm to humans. The main components of the exhaust gas and coke are CO and H2. The main produce CO2 and H2 post-combustion, much lower than coal-fired boiler SO2, SO3 and NOX emissions. 3. Ventilation pressurized combustion coal combustion boiler used in a combustion mode. The bottom of the combustion process through the induced draft fan with fan and completed. In the combustion of coal, it requires a lot of air. Gas under a slight positive pressure in the boiler or burner slightly negative pressure, which requires less airflow. Burner air may be pre-mixed with natural gas. 4. coal boiler control reasons, material thickness, amount of wind, the wind volume, wind and other than coal, coal-fired boiler is difficult to automatically adjust the operating parameters of the boiler according to the load. However, fewer factors gas boiler, the burner valve can be adjusted according to the size of the load, easy to implement automatic control. Coal-fired boiler to a gas boiler Notes: Main results are as follows: (1) small boiler, the coal-fired boiler to a gas boiler, i.e. the negative pressure of combustion from the original to the current combustion slight positive pressure, and must pay attention to the furnace wall structure sealing problems. Closely related (2) selection and arrangement of the burner and furnace, the degree of filling of the flame in the furnace is preferably not formed dead air, to avoid the interference of adjacent flame burners, to avoid interference from adjacent burner flame. Unburned gas - air mixture should not be in contact with a heated surface, in order to avoid incomplete combustion. Gas combustion. Gas burner arrangement disposed conduit and ducts should be considered reasonable gas pipe and duct arrangement, ease of operation, inspection and maintenance. (3) the transformation of coal-fired boilers is mechanized layered gas boiler should be removed before the arch and the arch, and the bottom heating surface increases, in place of the grate, the grate to prevent overheating. Gas Velocity (4) on heat transfer surface of the fly ash is not restricted abrasion conditions, convection heating surface heat transfer coefficient is increased, increasing the pressure in the boiler where H is unduly increased. Boiler erosion surface. At this time, the capacity of the boiler should be noted that the steam separator to ensure the quality of the steam.