0 7mw-70mw top class coal hot water szl boiler

0 7mw-70mw top class coal hot water szl boiler

Hot water 0 7mw-70mw top class coal hot water szl boiler item to check what internal checks and the use of hot water boilers 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.

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.

First, we need to clear in the 0 7mw-70mw top class coal hot water szl boiler "coal to gas" process, to determine the different rehabilitation programs depending on the furnace. Second, grasp the "coal to gas," the key link. 1, removal of the original coal-fired boiler slag machine, coal hopper, coal equipment, chain grate, gearbox and so on. 2, by calculating the heat transfer in the furnace, the furnace geometry is determined, the center position of the furnace flame. Re-casting furnace, furnace refractory concrete casting material used, a large ratio of aggregate: Aggregate: Small aggregate: Sand: = 4:2:1:1:2 refractory cement. After the boiler pipe arch to avoid the flame center position, after the original arch pipe elevation on the basis of the original slope. 3, installation of explosion-proof doors. For gas-fired boiler, the blast doors is an important facility to protect the safe operation of the boiler. 4, boiler water test of 1.25 times the working pressure. Third, no matter what kind of furnace should be noted that in the transformation of the construction of the following questions: 1, should guarantee the smooth flow of flue gas, have a good fullness and should avoid dead ends and dead. 2, the burner should be provided at the height position of the center of the furnace, and the combustion space and has sufficient length. Flame should not be flushed to the wall heating surface, so as to avoid incomplete combustion gases local overheating and damage to the wall. 3, since the combustion gas in the furnace backlash, high thermal strength, exposed to the bottom of the drum in the furnace should be adiabatic process. 4, various pipes, fire tube boiler furnace wall substantially refractory brick masonry, and shield plus insulation material. In the "coal to gas" should pay attention to the tightness of the furnace wall, minimizing the original door, door checks, etc., can assemble the refractory block, prevent cold air flames wounding or excessive leakage into the furnace , affecting boiler efficiency, to see the fire hole must remain closed also should see the fire hole, heat-resistant glass viewing by fire. 5, the furnace boiler and gas than coal-fired boilers, is generally greater, there is sufficient combustion space, increase the volume of gas, does not affect the transformation of combustion conditions. If the user requests output significantly improved boiler, the furnace can be increased radiation heating surface, to remove scale and soot while the inner surface of the outer heating of the original, so that without increasing the volume of the boiler case to improve the boiler output is not a problem. Thermodynamic calculations must do in the boiler, while the smoke but also good wind resistance calculation intensity calculation. Fourth, the correct choice of matching burner

Internal gas-fired, gas-fired fuel management is equally important for wear to how to do? Detailed examination is the key, fuel management is equally important. We can according to operating conditions, gas-fired, time, planning and reasonable arrangements for wear of the check, when using fuels strict control of particle size into the furnace of coal and limestone particle size of bed material similar to strict customs, 0 7mw-70mw top class coal hot water szl boiler waste to be treated before discharge. Want to reduce the impact on the water wall tube may be appropriate to adjust air pressure, air volume, can effectively reduce the wear and tear of the water wall. Maintenance shutdown time is generally in a standby or shutdown, check items include wear the furnace wall, the furnace seals are tight, leak or absence of smoke and the like. In the case of wear was found to be timely repair and welding, to ensure the normal operation of the steam boiler. Generally gas prior to combustion boiler needs to be filled in the combustion chamber fossil fuel, fossil fuel and bed material, the full integration of recycled materials in an air convection wind speed, wind strength and rigidity of the bottom of the apparatus, the inner core region of upwardly movement, the outer annular area of ​​the reflow furnace wall along a downward extension of the coal particles in the furnace residence time, mineral particles, fly ash and flue gas contains a large number of large amounts of fly ash particles causes the waterwall tubes kept fast erosion wear, wear thin wall thickness, resulting in wear and tear.

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