gas steam boilers for chemical plant

SUMMARY gas steam boilers for chemical plant maintenance gas boiler twice monthly maintenance inspection item A. Fuel supply line: a filter cleaning gas oil; ignition gas conduit 2 airtightness inspection; 3 checks whether the flow line... B. inspection of the instrument: a flushing water table; 2 Syphons flushing; valve experiment. C. Check burner:.... The flame detector (photocell) cleaning the light receiving surface; second inspection oil pump pressure is normal; 3 checks the combustion flame is normal; 4 check burner, the burner sound is abnormal; 5 Cleaning revolutions cup; 6 o'clock washing water rod. . Check D. Intake system: a washing water filter; 2 reaches rated pump head and flow; 3 a check valve is working properly... E. daily drainage tank and the cleaning debris. Water quality testing, water testing furnace. F. Check the combustion consumption is normal. Every three months in addition to the maintenance items plus the inspection item inspection items: Electric Part A: 1 line is loose aging, failure; 2 check the reliability of electrical components, overload; Protection relay 3 is normal; B.... open soft low deactivation tank valve exclude sludge; C to test the boiler and then point interlocking means: 1. low water position; overpressure 2; 3 flameout 4. The exhaust gas temperature ultrahigh; D. et quality tobacco. detection: analysis of tobacco smoke constituents comprising temperature detecting tail, combustion is working properly checked. E. burner and boiler cleaning outer cleaning. Paul A. large projects each year hosts a body part of a comprehensive clean-up tobacco pipes, water pipes, front and rear smoke box, part of the furnace and the burnout chamber and smoke tubes ash collection. 1. inspection openings comprehensive inspection hole hand hole, manhole sealing soundness, and timely replacement of defective seals. 2. The overall comprehensive testing instruments, valves, comprising detecting pressure gauge and safety valve, the pressure controller and the electrode level controller tuning. Part B. burner: Burner cleaning turn round cup, ignition means, filter, pump, motor and impeller systems, throttle link means to add a lubricant. Re-awarded for combustion testing. C. access control section detecting electrical components, control lines, the control box clean ash collection, each control point is detected. D. water supply system maintenance water treatment plant to check whether water quality standards, a comprehensive clean soft water tank, to check the functioning of the pump and lift, clean check valve spool and so on.

0.5 tons gas boiler introduced: 0.5 tons of gas boiler Description: 0.5 tons of gas boiler imported burner, automatic programmed control, automatic purge blower, electronic auto-ignition, spontaneous combustion and gas, (air) automatically adjusting the ratio of wind oil good atomization, combustion, low NOX, energy saving and environmental protection. Under normal circumstances, when the boiler steam pressure reaches the set value, the burner combustion is automatically stopped, when the steam pressure is below the set value, the burner is automatically started. When the abnormal phenomenon of the fuel, air intake, fault lights, the output sequencer will immediately stop the fuel, burner shut down automatically.

Recently, Yuhang District, Hangzhou, Zhejiang Province, a printing company 20 steam tons / hour of coal-fired boilers have been stalled, this is the last Yuhang district an industrial coal-fired boilers, which marks the shutting down of Yuhang District of industrial enterprises to bid farewell to coal energy structure of coal turned to natural gas and other clean energy, Yuhang District from entering the industrial coal-free era.

Yuhang District "coal-free zone" construction of road resistance and long. As a major industrial zone, a long time, Yuhang District to focus on coal-fired thermal power plants, coal-fired boilers and other industrial enterprises formed a coal-dominated energy consumption structure. In 2014, the maximum amount of coal Yuhang District reached 783,600 tons. Large coal consumption that emissions of sulfur dioxide, dust and the like remain high for many years.

In order to further deepen the air pollution control, to win the Battle of the blue sky, Yuhang District, from 2017, will gradually tangqi thermoelectric, thermoelectric and sea Chongxian three coal-fired thermoelectric power plant with all closed down, the sea of ​​clean natural gas for thermoelectric realized heat. 3 thermal power plant shut down so that the region's coal consumption, pollutant emissions and other indicators to achieve substantial reductions in road construction of "coal-free zone" has taken a crucial step.

Yuhang bid farewell to coal road this did not stop. While coal-fired thermoelectric accounted for the bulk of coal consumption and pollution emissions, but only out of coal-fired power plant is not enough. 2018, the government decided to promote taking advantage of Yuhang District, the region within the remaining four coal-fired industrial enterprises (Coal Products) pot (kiln) furnace closed down or eliminated or modified.

Yuhang District to increase the proportion of electricity consumption, and actively guide the region's energy unit of coal to electricity, oil to electricity, gas bottle to electricity, the construction of an orderly distribution grid, promoting smart grid construction; continue to improve the level of utilization of natural gas, and urban area in addition to all the town cormorant birds, Baizhang full realization of natural gas supply, a total of 850 kilometers of natural gas pipeline construction and municipal gas transformation 45000; to promote the application of photovoltaic power generation, the region's industrial and commercial enterprises amounted to 173 megawatts of photovoltaic capacity building distributed, clean energy applications has taken shape in Yuhang District.

According to statistics, "Thirteen Five Year Plan" (2016-2020) since the implementation of environmental statistics included in Yuhang district industrial enterprises coal consumption from 588,900 tons in 2016 down to 38,900 tons in 2018, to drop in early 2019 0.

A substantial decline in coal consumption is brought to slash emissions of pollutants and air quality improved significantly. 2018, the main pollutant urban air Linping PM2.5 average concentration of 38 micrograms / cubic meter, decreased 40% in 2015. Region sulfur dioxide emissions of 7,833 tons in 2014 to 2018 had dropped more than 90%; NOx emissions to 8490 tons in 2014 to 2018 had dropped more than 60%.

Steam boiler When should an emergency shutdown when the steam boilers for chemical plant Shanghai encountered the following situations, gas boiler manufacturers need to take emergency shutdown measures: (1) When the steam boiler water level gauge water level drops below the lowest water level, through the "call water when the "law also failed to see the water level. (2) increase the boiler when the water level continued to decline up time. (3) water supply system failure, unable to supply water when the boiler. (4) water level gauge and a safety valve failure, can not guarantee the safe operation of the boiler. (5) When the control valve and the drain valve malfunction when closed lax. (6) when the pressure receiving surface of the waterwall tubes or boiler smoke tubes bulging or cracking occurs, the furnace wall, collapsed down occurs when the front arch. (7) In case of failure of a safety valve, pressure gauge displays the boiler overpressure operation. When by the above situation, should immediately shutdown, should turn off the blowers, the door opened quickly, quick rotation of the grate, the furnace temperature is lowered to withdraw the fire, the coal supply is stopped. When the boiler overpressure, open the emergency vent valve provided on the sub-cylinder is discharged down. When the furnace severe water shortage, should not panic, in order to avoid operational errors. At this time, non-watered furnace. Then reduce oven temperature to find the reasons to be processed.