In the near future, at home and abroad more than hazardous chemicals, major accidents have occurred, causing casualties and property losses. Is a profound lesson, Henan Energy Regulatory Office will co-Provincial Development and Reform Commission issued the "Notice on alternative transformation of the province's coal-fired power business major hazard (liquid ammonia tank)" and actively promote the province's power industry ammonia tank alternative transformation.
"National Development and Reform Commission and the National Energy Board to implement the views on the promotion of electricity reform and development of the field of safety of" clearly "to strengthen the major hazards source control, there are significant hazards during the production of coal-fired power generation enterprises should study the implementation of major hazards alternative rehabilitation programs. " Henan Province TV as fire, liquid ammonia tank safety risk management and control situation is grim. To actively implement the "opinions" requirements, Henan Energy Regulatory Office investigation and carefully combing the province's power industry the basic situation of major hazards, and actively carry out reconstruction work research initiative to communicate the situation with the Office of the Provincial Development and Reform Commission, the provincial emergency management, efforts to promote reconstruction work as soon as possible. "Notice" requirement province of the power generation enterprises should further enhance political stance, overcome difficulties, vigorously promote the major hazard (liquid ammonia tank) and Improvement, under the premise to ensure safe production, the province's coal-fired generating units and strive to 2020 in liquid ammonia tank renovation completed before the end of December. New coal-fired power generation projects should all use the technical route no major hazard.
Next, Henan Energy Regulatory Office will replace liquid ammonia around the transformation as an important safety regulation. For failure to complete the transformation of liquid ammonia replacement power companies, to be included in the list of key regulatory target, for there are significant risks or accidents in accordance with regulations to be strictly punished according to law, and urge enterprises to strictly implement the main responsibility to effectively prevent accidents, efforts to increase intrinsic safety level of the enterprise.
10 tons of gas turbine steam boiler burner it currently requires 10 tons of steam gas boiler steam boiler there are two types WNS10-1.25-Q SZS10-1.25-Q, and two kinds, i.e., three horizontal wet return back structure and vertical type double drum "D" type arrangement quick water tube boiler. It consists of upper and lower drum, membrane wall, superheater, economizer and convection bank composition, the burner disposed on the front wall, the fuel combustion in the furnace, the flue gas through the first convection bank, superheater, a second convection economizer tubes and into the chimney. 10 tons of gas boiler burners have split and one-piece points, integrated burner fan I see are axial fans, centrifugal fans with split, 90% of the 10 tons of gas boiler burner all-in-one, as to form two burner what a good way, this has yet to be explored. SZS10-1.25-Q has the following features in gas boiler: The product has the following characteristics: ⑴ This double boiler drum "D" type arrangement, a compact, small footprint, good flame fullness. ⑵ boiler lower support mode can be free to expand upwards. ⑶ using membrane wall furnace wall structure which reduces maintenance work and use of refractory bricks. This boiler ⑷ fender an airtight closed welded structure, good sealing furnace wall; outer layer of pressed boards, appearance, beautiful. ⑸ this boiler furnace inspection hole is provided for the use, maintenance provides a great convenience. Roof has explosion-proof doors. This quick ⑹ boiler structure can effectively shorten the installation cycle. ⑺ high thermal resistance material as a heat insulating layer, good insulation properties. ⑻ economizer arranged tail, can effectively control the exhaust gas temperature, high thermal efficiency of the boiler. ⑼ whole boiler steel holder on a strong base, convenient installation and transportation. ⑽ boiler heating surface has a surplus, soft drinks and large enough space to ensure the stability of the boiler parameters. ⑾ using automatic burner, combustion efficiency and an ignition control program and overpressure, flame protection. ⑿ continuous electrically adjustable water supply, and having a low water level alarm, the protection function chain. ⒀ using spray desuperheater, sensitive temperature adjustment, temperature control large amplitude. Second, the structure Introduction boiler 1, the main evaporation rated specifications: D = 10t / h of superheated steam temperature: t = 300 ℃ superheated steam pressure: P = 1.25MPa water temperature: tgs = 20 ℃ (except normal saline) boiler efficiency: η = 92.6% exhaust temperature: tpy = 136.3 ℃ desuperheater tYPE: hydrostatic pressure test boiler desuperheater spray: 1.75 MPa number of valve: drum 2 PN2.5, DN80 full open spring valve overheating an outlet header PN2.5, DN50 full open spring valve design of the fuel: 0 light diesel oil (Qydw = 41870kJ / kg); consumption 749.9kg / h of natural gas (Qydw = 37060kJ / Nm3); 847.3 consumption Nm3 / h
How to use gas-fired boilers can improve the thermal efficiency of the gas boiler is also bad choice will directly affect its thermal efficiency, so we are in the process of buying, be sure to choose good quality. In fact, the factors affecting it improves the thermal efficiency of many, so we regularly thermal conductivity of the gas boiler for cleaning and maintenance, etc., so as to extend its service life. Selection of good thermal and oxidative stability, strong anti-coking. Be careful not to choose odor and color depth of the election furnace. Life with carbon residue, an acid value, flash point, viscosity 4 measure. Make semiannual oil testing, in order to grasp the good quality operation. Identify problems and timely replacement, and find out the reasons and preventive measures in advance deterioration. At the same time it must strictly do not mix different product numbers to use. When used in strict accordance with the rules furnace, to avoid emergency fire heating (temperature rise rate which should be controlled at l0 ~ 40 ℃, h), over-temperature, over-pressure, to take emergency shutdown measures quickly and decisively, always observe the oil level and the oil expansion tank temperature. Such as the lack of oil should be added. Prevent air and water into the oil circulation system. It will accelerate the reaction (the oxidation rate at two-fold increase for each increase in L0 deg.] C temperature) after direct contact with air because of high temperature, high temperature oil to prevent direct contact with air. A better approach is inflated with nitrogen gas to the upper space of the sealed tank. Forming a protective gas layer, sealed under nitrogen unconditionally. To header tank temperature generally does not exceed 60 ℃, header tank is not directly connected in series within the circulatory system. Improve the thermal efficiency of the furnace hot oil boiler, timely removal of the inner wall of the furnace, plate line grime on the walls, in order to ensure good heat transfer, and should use a better quality of gas as far as possible, so that the heat generated by the combustion of coal in time, fully passed to it.
Gas-fired steam boilers can be cleaned during cleaning using efficient and environmentally friendly non-corrosive detergents. This will cause the tube to expose the primary color of the metal and reduce the impact of dirt and bio-algal sludge. After ignition of gas-fired steam boiler, attention should be paid to observing the furnace temperature and the temperature of the main steam. With the increase of main steam pressure, the flue gas temperature of boiler is obviously increased after ignition. If the temperature does not rise, you should go to the scene immediately to inspect the oil gun fire. The scale thermal conductivity of a gas-fired steam boiler is only 1/10 of that of steel. This hinders heat transfer when it scales on a heated surface. In order to keep the boiler in use The output shall increase the temperature on the combustion side. The increase of outlet temperature of gas-fired steam boiler increases the loss of gas-fired steam boiler, and the scale on the water wall of equipment will effectively reduce the heat transfer effect, which may lead to the increase of the temperature of water wall and the burst of water wall. When a gas-fired steam boiler is in operation, a series of chemical and physical reactions will occur in the furnace. In use, it will effectively form a hard and dense scale on the heated surface, which will directly lead to its heat exchange. The reduced efficiency and corrosion due to scale will reduce the heat absorption of gas-fired boilers.