7Mw Oil Fired Steam Boilers


7Mw Oil Fired Steam Boilers

Henan gas treatment condensing boiler operation in the secondary combustion Accident Henan condensing gas boiler, deposited in the rear of the boiler flue gas condensing Henan combustibles (soot, carbon black) re-ignition combustion phenomenon called secondary combustion, also known as Henan condensing gas boiler flue tail and then burned. It will backpass severe, air preheater, induced draft fan and other equipment economizer even destroyed. 1. Henan condensing gas boiler secondary combustion phenomenon (1) a sharp rise in exhaust gas temperature, chimney to take smoke, fire or even smoke. (2) changes drastically furnace pressure, positive pressure occurs. (3) severe flue enclosure dark red. (4) when there is an air preheater, a sharp rise in the temperature of the hot air, pressure instability. (5) blast doors sometimes the tail action. Cause 2.Henan condensing gas boiler secondary combustion (1) poor atomization burner, oil, gas and incomplete combustion into the rear of the boiler. (2) combustion improperly adjusted, with insufficient wind or with the wind unreasonable. (3) Henan condensing gas boiler startup, shutdown during low furnace temperature, the unburned fuel in the furnace. (4) When shutdown or boiler fire, air gun valve is not closed. (5) the combustion chamber negative pressure is too large, too late to make the gas burn it into the rear of the boiler. (6) Long-term non-stop cleaning backpass furnace, accumulating a certain amount of soot or carbon black. (7) through the air preheater flue or leakage. 3. The gas processing condensed Henan secondary combustion boiler (1) should immediately stop the gas, stop the wind, shutdown. (2) closing the flue, and a baffle duct around the door opening, is prohibited to start sending, induced draft fan. (3) immediately extinguishing device into steam, carbon dioxide or other fire extinguishing means, (4) Strengthening Henan condensing gas boiler feed water and turn on the water, open the valve or economizer recirculation tube to protect the economizer is not burning. (5) When the exhaust gas temperature close to the temperature of the injected steam, or less than 150 deg.] C over 1h and stable openable inspection hole inspection, after checking element determines an ignition source, before the fan starts ventilation and cooling. (6) when the temperature drops below the flue 50 ℃, check before entering the flue tail heating surface, and should completely remove the flue soot. If not burning, can be re-started ignition; if burning, should be replaced, repaired burning member.

Use should pay attention to the problem of 7mw fired steam boilers pressure gauge. Rated steam pressure of less than 2.45MPa steam boiler, a manometer accuracy no less than 2.5; equal to the rated boiler steam pressure 2.45MPa, the pressure is not less than 1.5. Dial gauge diameter of not less than 100 mm, to ensure that the operator can clearly see the surface pressure indication. 2. Steam boiler gauge plate should draw a red line that indicates the maximum allowable working pressure. 3. The steam boiler pressure gauge should be installed in place to facilitate the observation and purged, and should prevent high temperature, vibration and icing. 4. The steam boiler pressure gauge should be checked at least once every six months, after calibration seal should be sealed. 5. The steam boiler gauge connection tube not leak water and steam, otherwise it will reduce the pressure instruction value. Biomass boiler is a kind of boiler to biomass energy as a boiler fuel called biomass boilers, steam boilers into biomass, biomass hot water boiler, biomass stove, biomass thermal oil heaters, vertical raw biomass boilers, biomass boilers and other horizontal. Steam boiler is an energy conversion device, the energy input to the boiler fuel chemical energy, electrical energy, thermal energy and other forms of high temperature flue gas, and after converting the boiler, the steam output having a certain outside thermal energy, high-temperature hot water or an organic carrier. 6. A steam boiler pressure gauge measuring range should be compatible with the operating pressure of the device under test, the working pressure is generally 1.53 times, preferably 2 times the working pressure. Steam boiler no pressure gauge, pressure gauge or pressure gauge damage does not meet the requirements. When the steam boiler pressure gauge of the following circumstances, should stop using: 1, the surface of the glass broken or blurred dial; 2, lead-free seal, lead seal is broken or exceeds the calibration cycle; 3. When no pressure gauge pointer position is limited to the limit staple nail can not be restored, and the unlimited gauge pointer from zero rank bit data is out of range pressure layer. Difference; 4, leak or pointer jump table; 5, other defects affect the gauge accuracy.

The latest was informed Tongling Municipal People's Government issued the "Notice on Tongling City to win the Battle of Blue Sky embodiment", as follows.

First, deepen industrial pollution control

Continuing to promote a comprehensive industrial pollution discharge standards, increase penalties and excessive joint disciplinary efforts, not discharge standards of the enterprise to suspend for rectification according to law. Implementation covering all stationary sources of emissions permits enterprise system, before the end of 2020 to complete the trade provisions of the license issued discharge permit management directory.

Carry iron and steel, cement, nonferrous metals, thermal power, coking, casting and other key industries and ports, shipping, coal-fired boilers fugitive emissions investigation, the establishment of management accounting, before the end of 2019 to complete the material (including waste) transportation, handling, storage, transfer and process fugitive emissions such as in-depth treatment.

Second, the continued implementation of the total coal consumption control, strict implementation of coal consumption reduction instead. By 2020 the city's coal consumption control in less than 13 million tons of coal accounts for the proportion of total energy consumption to decline further. Strict implementation of new coal projects coal reduction instead. Added support for the power industry outside of iron and steel, chemicals, nonferrous metals and other industries coal projects, the implementation of coal consumption reduction of 1.5 times alternatives. Increased focus on bulk coal remediation efforts. High-pollution fuel combustion zone ban bulk coal sales all clear.

Third, the implementation of the "coal to gas" and "electricity instead of coal." Strengthening the capacity of natural gas supply security, promote glazed tiles, casting and other industries natural gas instead of coal gasification project, orderly implementation of coal-fired facilities from coal to gas. Combined with regional and industry energy characteristics, and actively promote the implementation of "electricity instead of coal" in the field of industrial production, transportation, agricultural production, living and so on.

Fourth, continue to strengthen the supervision of the boiler. Consolidate the results of rectification of small coal-fired boiler, make sure the rebound does not occur, a citywide ban on new 35 tons of steam per hour and coal-fired boilers. Increase efforts to eliminate small coal-fired boilers. Dynamically updated list management coal-fired boiler, built-up area City 35 tons of steam per hour coal-fired boilers by the end of 2019 total phase-out or implementation of clean energy alternatives; retention of six chemical companies 2 130 tons of steam per hour of coal-fired boilers to complete all energy saving and ultra-low emissions transformation.

Fifth, strengthen the bulk coal governance. Strictly implement the "Interim Measures for commercial coal quality management" (National Development and Reform Commission Order No. 16) and technical standards for coal-fired boilers, in-depth implementation of bulk coal remediation crucial action, and strictly implement the ban on burning areas prohibit the use of high-polluting coal for fuel measures. To strengthen the management and control of coal-fired coal. Ongoing monthly coal quality sampling, and promote enterprises to increase coal-fired coal reform efforts.

Steam boiler steam separator device works in the overall design of the 7mw fired steam boilers, steam separator device is essential, rapid separation of water saturated steam is to improve the steam quality to ensure that an important part of the normal operation of the boiler. Fuel gas boiler is not only fuel but also refers to the gas boiler. Previously no such dual-fuel boiler, burner because either fuel or gas, no dual fuel burners. With the rapid development of the world energy equipment, some European countries begin production and sales of fuel gas burner, dual fuel burner and boiler combination of organic birth of a new breed of boiler - fuel gas-fired boiler. Biomass boiler is a kind of boiler to biomass energy as a boiler fuel called biomass boilers, steam boilers into biomass, biomass hot water boiler, biomass stove, biomass thermal oil heaters, vertical raw biomass boilers, biomass boilers and other horizontal. Convenient to meet customer needs. Then, the authors will guide you to understand the working principles of steam and water separation device on the steam boiler. First, to avoid increasing the local load between the evaporation surface and the vapor space drum boiler, the steam is uniformly by water extraction. Second, it can effectively weaken the kinetic energy soda mixture into the tank, reducing its impact on the water. Third, in order to take advantage of inertia, and centrifugal separation, the mixture having a flow path soda rapidly changing, keeping in mind the shunt separation of water, to avoid being carried steam again. Finally, there is a large surface area, in order to adhere more water droplets. At the moment, a lot of steam separator type, according to the principle of the separation can be divided into natural and mechanical separation. The principle is to use natural separation of steam and water and the density difference between the force of gravity. Mechanical separation principle relies on inertial force, centrifugal force and adhesion. Water separation apparatus is often installed in a steam boiler and used underwater plate, baffle, plate uniformity, manifold, volute separator, corrugated sheet and steel mesh separators.

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