coal fired condensing hot water boiler manufacturer

coal fired condensing hot water boiler manufacturer

All along, Zhangjiakou City, Hebei Province, took the central environmental protection supervision "look back" as the main problem of feedback opportunities to enhance the ecological environmental protection, pollution prevention and fight tough fight, active rectification, hard to rectify, resolute reform, promote the environmental reform task completed on schedule. We understand that in 2018, Zhangjiakou City Daly to promote projects cut coal, the accelerated clean alternative to coal consumption year on year in 2017 to reduce 1.04 million tons.

For unfinished "2017, the province's energy cut carbon coal down the main points of" cut annual coal requirements of mission objectives problem, Zhangjiakou City, supervisors coal companies cut coal, high quality coal, strengthen energy-saving technological transformation, to fully grasp the total coal consumption control and reduction of bulk coal.

The strengthening of key coal enterprises cut coal, to promote energy-saving technological transformation projects, several key coal enterprises to continuously improve energy standards. And vigorously promote the project minus coal, coal production in 2018 to defuse 8.6 million tons, out of coal-fired boilers 1663 units. Accelerate clean coal alternative, clean winter heating selected pilot cities in northern, rural complete "electricity instead of coal", "substitution of gas for coal" 6971. And vigorously develop renewable energy sources, as of 2018 the city's renewable energy installed capacity of 13,454,800 kilowatts, accounting for 74.2% of all electricity installed capacity, the highest in the country.

Advanced equipment and principles of steam boiler desulfurization and dedusting analysis of small and medium boiler outlet dust concentration in the combustion of various structures are much higher than the maximum allowable dust concentration values ​​specified in our standard, so in addition to the correct choice burning structure and improve operational level, to burn coal dust boiler equipment must also be provided at the rear of the boiler, the flue dust is then trapped into the atmosphere. Dust into five categories according to their action principle (1) comprises a gravity dust precipitator mechanical force, an inertia dust collector, a centrifugal dust collector. (2) comprises a water bath washed filter dust collector, a foam-type dust collector, venturi dust, water, dust and the like membrane. (3) comprises a filtering dust collector (4) an electrostatic precipitator and baghouse dust particle layer and the like. (5) a magnetic filter. Gravity settling dust collector 1. The principle is: When the flow rate of the flue gas into a large space to reduce soot particles by means of its own gravity larger, natural settling by gravity separated from the flue gas. 2. The cyclone dust cyclone called centrifugation, the principle is strongly flue dust along the cylindrical wall is rotated within the gas cyclone, and gradually decreased along the tubular wall a helical motion. Strong centrifugal force generated by rotation, the cylindrical wall surface of the body thrown dust, dust on the wall surface by gravity to the bottom of precipitator gradually decreased, and is discharged through hoppers. Purified flue gas is discharged from the middle of the dust core tube. Centrifugal mill precipitator 3. The principle is: the tangential direction into the flue gas at a high speed from the lower portion of the cylindrical housing, along the rotating cylindrical wall, the nozzle along the upper circumference of the cylindrical housing into a uniform tangential spray in when the inner wall of the cartridge housing forming a water film, since the centrifugal force, is thrown dust cylindrical wall, and the stick water film and water film flows along the conical hopper, is discharged from the ash discharge outlet, the purified flue gas from the housing an upper discharge.

Preparation before the coal fired condensing hot water boiler manufacturer hot water boiler is enabled prior to use, fully prepared to do so that the hot water boiler can be carried out smoothly at the time of use. So before using hot water boiler what to do to prepare it. Hot water boiler with preparation before the fire. Hot water boiler before Stoke shall check the following: First, check the boiler (including combustion grate, reducer, economizer, pressure gauges, thermometers, valve, exhaust valve, drain valve, return water valve, check valve, etc.) and ancillary equipment (including blowers, dust, coal, dust, water softener, pumps, motors, decontamination, expansion tank and controlled instruments, etc.) does meet the requirements, to achieve complete, accurate, sensitive and reliable. Second, the combustion apparatus where inspection is intact. Third, when the equipment inspection and approval, prior to closing the boiler manhole and hand hole, should identify the boiler, when the combustion chamber before the smoke and debris before they closed and no one did. Fourth, when the water heating system all To open the exhaust valve, the discharge cold air, until the water is full closed. Fifth, before Stoke boiler, boiler combustion chamber and flue deal with the implementation of ventilation. Should natural ventilation and boiler flue door opening 9; 16 minutes, the mechanical ventilation of a boiler, induced draft fan starts to be less than 6 minutes. When the sixth water, check the boiler economizer and the hand hole cover, whether Flange water leakage, water leakage should be found processing. Seventh, ancillary equipment lubricated part of the boiler should be filled with oil. These are said to be done before the hot water boiler in preparation we want to help.

Hot water boiler item to check what internal checks and the use of coal fired condensing hot water boiler manufacturers prepared in the furnace and flue inspections of boiler accessories, check the automatic control system, checking of ancillary equipment, inspection equipment burning auxiliary heating surface check the hot water boiler must be done before running some tests, these tests are quite a lot of us, it is possible because of our neglect and causing very serious consequences. Therefore, we must forestall, be sure to carefully check the following before the hot water boiler operation. 1, including the use of internal inspection and boiler ready. 2, inspection, and furnace fouling and debris inside the flue in the furnace and flue should be cleaned. Flue duct and damper, the shutter must be complete and compact, flexible switch, opening and closing accurately indicated. 3, check the boiler accessories, check the safety accessory is intact; cock is rotating flexible, easy to use; all kinds of instruments and controls should be complete, good, clean. After passing the examination, should the gauge cocks in working condition. 4, check the automatic control system. 5. Check the accessory device. 6, inspection of the combustion apparatus, the combustion apparatus is intact inspection; mechanical transmission system, coal handling system, the ballast system test switch normally; spring-loaded safety level of a gearbox should be appropriate, well lubricated; coal shutter indicate the correct scale. iron eagle neat, well, turn the ballast plates full, flexible movement. 7, the auxiliary heating surface of the inspection, check the auxiliary device (fan, blower, pump, etc.) are firmly connected coupling; proper belt tension triangle; oil should be good enough; cooling water flow. After passing the examination, installed security guard, respectively, commissioning, and note the current when idling.

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