Jiangmen City, Guangdong Province issued 2019-- 2020, winning the Battle of Blue Sky embodiment, as follows.

1, a ban on new or expanded coal-fired thermal power units of fuel oil or coal-fired captive power plant business. A ban on new 35 tons of steam per hour of coal-fired boilers. Not the implementation of clean energy transformation and more than 35 tons of steam coal-fired boilers to complete the transformation of ultra-low emissions or shut down independent choice by the end of 2020.

2, and resolutely shut down environmental protection, energy consumption, safety, less than 300,000 kW coal units of non-compliance, timely decommissioning of units served their time every day, every day to promote the long running units early retirement. For shutting down the unit's capacity, coal consumption and emissions targets, allowed to trade and exchange, in co-ordination arrangements can save building capacity ultra-low emission coal-fired units.

3, the control total coal consumption, coal consumption in new coal project implementation reduction instead. Out of tea furnace, operating a stove, grain storage and drying equipment, coal-fired facilities, residents in the city's urban area with all bulk coal cleared.

4, speed up and clean alternative to coal-fired boiler industry, a comprehensive Mocha under construction, has been built, the proposed cogeneration, district heating project, and accelerating the construction of district heating projects. Accelerate the clean energy transformation of coal-fired boiler, before the end of 2020 to complete the transformation of coal-fired boilers clean energy per hour, 35 tons of steam.

Biomass boiler case:

The animal feed plant has a seasonal operation, but a relatively consistent load profile. The peak load is for 850 kg/hour of saturated steam at 8 barg (~650 kW see Figure 3). There is a much smaller load required for longer periods for miscellaneous process steam. The load is currently supplied by a very old light fuel oil (LFO) boiler. The load profile here facilitates an almost complete switch from LFO to biomass. 96% of the steam requirement would be covered by a 650kW biomass boiler. A small oil boiler, or built-in oil burner in the biomass steam boiler would be required to meet the smaller steam loads which would not be met efficiently by the biomass boiler. A straight-forward moving grate boiler with fire-tube heat exchangers can be used. The range of suppliers of biomass steam boiler equipment is limited below 1MW thermal as economies of scale are diminished below this level – a 650 kW boiler costs almost the same as a 1MW boiler.

Note the fuel gas-fired boiler fuel gas pressure when the talk about fire boiler shutdown in accordance with the fuel (electricity, oil, gas) can be divided into electric szs oil steam boiler, steam boiler fuel, gas steam boiler three kinds; in accordance with the constitution can be divided into vertical steam boilers, horizontal steam boiler, steam boiler, mostly small and medium sized single, double the return of the vertical structure, large steam boilers and more horizontal structure of three return. The following is a pressure Cautions fire boiler 1 shutdown, shutdown pressure fire more than 6h, main steam valve should be closed after the pressure of the fire over time, open trap superheater outlet header of the superheater to cool. After closing the main steam valve, such as pressure goes up, and can be used at the same time into the sewage Boiler Feed down method. When the recovery boiler operation, subject to step-up and step 2 protection, thermal shutdown during the press pot still steam pressure, it must still pay attention to monitoring, and to allow the boiler to maintain the water level 3, with a cast iron gas boiler province, in after stopping the boiler feed water, the shutter should be closed save flue gas, furnace bypass channel open flap or in the circulation pipe, stopping the gas temperature exceeds a predetermined value within the province 4, the pressure during the shutdown should be appropriate fire sewage, furnace exclude precipitation Care was taken after pressure fire shutdown should not immediately stop the operation of the circulating pump, the network should continue circulating water circulating in the system for some time, when the boiler outlet water temperature dropped to 50oC with the following, in order to stop the operation of the circulating pump

Solutions and prevention of gas oil-fired boiler flameout Today we'll resolve what about gas fuel boiler flameout solutions and prevention fuel gas-fired boiler flameout Solution: First, the furnace pressure gauge indicates the value suddenly increases, the furnace black can not see the flame, burning furnace sounds disappear, extinguishing the flame supervision devices emit a signal; the temperature dropped sharply atmospheric pressure, the water level dropped after the first rise, and so are flameout phenomenon. Auxiliary flame caused by an accident, such as a fan, blower power interruption, there is an accident signal emitted; fuel supply as a result of intermittent, the boiler is oil or gas pressure drops to zero, only a single burner flame, the furnace may also be thrown skew central flame extinguished burner pressure change; as a result of the fuel supply interruption, the extinguished burner pressure or hydraulic indication may drop to zero, and the fuel consumption, the gas pressure is increased other operating burner. Causes gas boiler flameout are: sudden increase in gas pressure caused from the fire, the solenoid valve malfunction the gas supply interruption, the gas composition has changed so much moisture content is too high and so on. Blower, fan failure, the load is too low furnace pressure is too large excessive leakage and other excessive wind, so that the furnace temperature is too low can also cause the boiler flame. Cause misfire has oil-fired boiler: oil pump failure, the oil surface is exposed inhalation tube, clogging of the oil filter or oil supply pipe, a solenoid valve malfunction or misoperation caused by oil running intermittently. During transport the fuel with steam by heating water; inappropriate position inhalation tube with the pumping of water; improper contaminated oil floating on the water; poor dewatering tank drain plug such that the fuel with water. After the explosion should be taken to prevent the furnace boiler flameout, it must immediately cut off the fuel supply to the furnace, and then block the electromagnetic valve of the gas supply valve to seal off the fuel supply to run the burner. When the action to be fast in order to avoid inheritance or restore fuel supply during operation, causing the furnace explosion. And identify the cause of boiler flameout troubleshooting find a good job and then start the preparatory work. Before starting the boiler should be enhanced ventilation purge, purge time is more than 5min, then procedures ignition. It is forbidden to send fuel directly to the high-temperature furnace without using an ignition spark ignition device to prevent furnace explosions. If due to fan failure caused when the flame should be quickly cordoned off the fuel supply line of each valve, with special attention because the valve is not tight blockade caused by leaking fuel. Ventilation and purging of the furnace and flue in accordance with the approach of an emergency shutdown. Ignition step by step in the recovery operation after the fan. Single burner flame burner only block the fuel supply valve, the burner off a small damper identifying and troubleshooting and then re-ignition by the ignition process. Boiler flameout of prevention: For oil-fired boiler should minimize the possibility of fuel transport, storage and handling of water in all sectors. Tank initiative measures should dehydration and dehydration on schedule. In any case, it should ensure the security of oil supply. The supply of oil and acceptance testing, cutting oil change when the master species. When a large change in oil types, varieties and the need for the oil tank to store the original varieties contaminated test to determine whether the same storage tank, to prevent the density and viscosity differences between a large number of decomposed oil mixed insoluble material, clogging oil pipeline. For the operation of the gas boiler should be closely monitoring the evolution of gas pressure, the timely processing of exceptions thrown up air pressure, ensure the supply pressure in the normal range. To always understand, repair gas composition, gas composition changes when large, to take the necessary adjustment measures on the boiler operation.