oil steam boiler capacity 8 ton 1 25 mppressure

oil steam boiler capacity 8 ton 1 25 mppressure

Oil-fired boiler maintenance methods "" A lot of companies because after the purchase of oil-fired boilers, Careless maintenance process, with the result that the useful life of oil-fired boiler is greatly reduced. So how should it be maintenance of the oil-fired boiler? The following article gives you a detailed analysis. After conducting oil furnace shut until the furnace cooled water to the boiler water below 70 ℃ exhausted, the internal completely remove the dirt, washed away, all manholes, hand holes, valves and other pipeline tight blockade, and with a blind plate and running boiler completely isolated. After all of the alkaline solution is added, and then injected into the soft water boiler, until the water coming out from the highest point till the boiler, the water supply valve is closed, note that the average mixing an alkaline solution inside the boiler. Stop oil-fired boiler more than a month, maintenance of law should be dry, wet maintenance shutdown method can be used the following month. To schedule the maintenance period Microflame oven, schedule the water cycle, the concentration of the alkaline solution throughout the same. Every five tests also take a basic solution, such as alkalinity less than 5-12mmol / 1 solution should be applied. Periodic inspection outage before the oil-fired boiler furnace, should be prepared to work the following three aspects: (1) review the registration technical dossier furnace boiler and boiler furnace usage understand. In order to fuel the transformation within the furnace boiler external inspection be aware, the general need to understand: the transformation of the electric furnace boiler design, manufacture, installation; boiler furnace revamping; boiler furnace use history and usage; boiler furnace water treatment case ; boiler performance and other rules and regulations. (2) Check before shutdown preparation. First, with the production schedule maintenance shutdown date, and then let the transformation of the normal furnace boiler shutdown program shutdown, but slowly disheartened. Injecting cooling method may be employed downcast water, replacing the water cooled furnace and the furnace into line ventilation cooling. When the boiler water temperature was reduced to 70 ~ 80 ℃, before drainage. Open all doors hole. When the door opened, to prevent warm water, steam jet man suddenly burns. Corresponding to the passage blocked pipe on the transformation test furnace boiler steam, water supply, sewage and other pipes and other run in the transformation of the electric furnace boiler. Blocked with shutter have sufficient strength to avoid being broken drum high pressure medium. To clear the blocking position is indicated. And other operational boiler furnace flue should be communicated reliably cut off. Also to clear the transformation of furnace soot and scale boiler by warm surface. (3) test preparation tools and lighting. In order to ensure the smooth entry inspection, the inspector should prepare the necessary equipment, tools, measuring tools and safe and reliable lighting devices.

Gas condensing boiler Gas condensing boiler Products That condensing gas boiler, the key lies in condensing technology, is a new, energy-saving and environmental protection boiler. By condensing gas boiler flue gas condensing boiler means the exhaust gas temperature can be reduced to 50 ~ 70 ℃, full recovery of the latent heat sensible heat of flue gas and steam, the highest thermal efficiency of the boiler up to 102%. Gas condensing boiler uses condensing gas boiler products can be widely used in hotels, schools, hospitals, textile mills, cafeterias, restaurants, food plants, pharmaceutical plants, packaging plants, building materials factory, swimming pool and other enterprises place. Advantages of gas condensing boiler 1, one-piece design condensing boiler boiler efficiency compared to more ordinary, more environmentally friendly. 2, a condenser and an economizer disposed tail, achieved using a flue gas waste heat step, fully absorbed the heat in the flue gas; high heat transfer coefficient of the threaded pipe, the effect of convective heat strengthening, boiler efficiency up to 102% . 3, classic three return, all wet back structure: low resistance, high efficiency. 4, all-furnace corrugated furnace structure, strengthen the disturbance smoke while increasing the radiative heat transfer area; increase rigidity furnace, effective to attenuate the expansion stress of the furnace, and long service life; enhanced heat transfer, the combustion of fuel more fully. 5, a large volume of the combustion chamber design, fuel adaptability, and can be fully adapted to a variety of city fuel gas, natural gas, light diesel oil and heavy oil. 6, positive pressure combustion, fuel combustion, less smoke emissions, are in line with national emission standards. 7, using the first all-welded and then pre-expanding, then Expansion of advanced technology, high quality welding, testing 100% pass rate. 8, Germany Germany Weishaupt burner, Olin Finland, Italy Riyadh Road, Germany Paterson and other well-known international brands burner. 9, condensing unit, outstanding economic performance, the lowest in the province 60,000 yuan. Product Structure gas condensing boiler using condensing gas boiler wet back three return, full corrugated furnace, threaded pipe structure, large volume of the combustion chamber is provided, the combustion more fully; tail saving additional condensing means, which can effectively absorb heat generated by the fuel, improve the thermal efficiency of the boiler, reducing input costs and reduce pollutant emissions. Advantages condensing gas boiler 1, a high thermal efficiency: economizer, the boiler and condenser integrated structure, sufficiently absorb heat and smoke emission latent heat of vaporization, high thermal efficiency more than 10% than the average furnace; 2, the exhaust gas temperature is low: energy , a condenser, a three-dimensional design, efficient heat transfer, corrosion-resistant materials, the exhaust gas temperature up to 60-90 ℃; 3, energy saving, environmental protection: flue rotary combustion technology, full fuel combustion furnace with ordinary than about 10% fuel savings, harmful gas emissions to the national standards; 4, high quality silicate insulation material and double sealing structure, thermal insulation, good sealing performance.

1: Steam boiler steam pressure the higher the better selection pressure, depending on the user's requirements. Vapor pressure, safety pressure member Advantageously, the energy consumption is low; but the steam will be relatively worse quality, low enthalpy, humidity, may be difficult to meet the disinfection, sterilization, culture, heating and power needs. And the high vapor pressure, energy consumption is high, the corresponding steam equipment, piping and valves the pressure is high, the maintenance requirements are also more, the production of steam, the heat transfer process, a large leakage loss. Meanwhile, high-pressure steam as the steam pressure is increased to carry the increased salinity, so salinity these waterwall tubes, pipe tobacco, and other drum heating surface fouling, overheating, foaming, clogging even increase the possibility of squib. Salt steam to steam turbine flow area will decrease, reducing the efficiency and seriously affect the heat transfer. Thus, fireman must operate in accordance with operation of the steam pressure, the steam pressure fluctuations generally allows a value between 0.05 ~ 0.15MPa.

2: the higher the boiler water level was considered safe water level is higher, the boiler water is not easy, security is also guaranteed. In fact, this is a misconception, the water level is too high, steam and humidity increase, poor steam quality, steam equipment will harm and production results. Industrial boilers, a moisture vapor sterilization or incubation with a large amount of steam also increased salt, or culture for a long time ranging from sterilization, steam consumption increase, ineffective, decreased production culture; weight is not reached the purpose of disinfection or cultured biological products contaminated scrap, even pipes, water hammer occurs apparatus. For utility boilers, steam moisture capacity, the steam turbine last stage blades will be erosion, there may appear Priming pot, water shock severe enough to cause harm equipment and personal safety. Thus, the pot water level should be maintained within a fluctuation range of ± 50mm well.

3: Some people think the better fuel plus fuel plus the more productive the greater the amount of steam. Little do they know too much fuel into the furnace, the effect will be counterproductive. When a certain amount of air and the excess amount of fuel, the furnace will produce a large amount of incomplete combustion, resulting in energy waste. People often see the dark furnace flame, weakness, and black smoke chimney, mostly for this reason. In severe cases, there will be fire pulverized coal, oil furnace secondary combustion occurs, burst pipes until shutdown. Therefore, the ratio of fuel and air volume should be adjusted appropriately, typically by looking at the fire, smoke color look, see table indicates the amount of oxygen determined. When the flame in the furnace as a bright yellow, pale gray smoke chimney to take, stable vapor pressure, wind coal showed appropriate ratio, good combustion.

4: Dial stirring the fire, the better the fire is commonly used in industrial boilers manual method. By stirring the fire, can be eliminated crater, reduction furnace from the fire and the fire bed smooth, homogeneous combustion, strong. But too much stirring the fire, but will reduce the overall thermal efficiency; this is because when stirring the fire, a lot of cold air into the furnace, reducing the average temperature of the furnace section of the flame. At the same time, increase the heat losses, an increase in the number of black smoke chimney, pollution of the environment. In addition, when stirring the fire, the staff is also susceptible to flame radiation, burns, fire-resistant layer is also susceptible to dial hearth fire damaged tools, increased furnace building maintenance workload. Therefore, the fire should be allocated as needed, to minimize the appropriate dial.

5: the bigger the better furnace pressure and furnace pressure is reflected in one of the boiler combustion conditions is normal or not an important parameter. Operating the boiler furnace negative pressure should be maintained between 10 ~ 20Pa, too great a negative pressure results in: increased leakage furnace, heat losses increase; wind increased electrical energy consumption; fly ash increased the wear along the heating surface; reduced the furnace heat of combustion efficiency. Most gas-fired boiler designed to run slightly positive pressure to increase the combustion rate. Operation, the furnace pressure becomes positive, even increasing the wind is still difficult to maintain the chamber negative pressure, said system failure or the wind furnace wall tubes, superheaters and other soft drinks leakage; fire furnace, the furnace pressure is first reflected table violent swing to the negative direction flung head. Therefore, the furnace pressure must be run according to the provisions, or should pinpoint the cause.

6: sewage longer the better spoken here regularly refers only to the sewage discharge rather than continuous blowdown. Periodic sewage mainly refers to the existence of negative bottom of the boiler slag, dirt and corrosion products, reduce furnace tube fouling, prevent clogging and reduce the salt content of the water boiler, heat transfer enhancement effect. One would think that the longer the discharge time, impurities will be discharged bottom of the pot the more, the better sewage, it is not. Sewage long time, a waste of a lot of heat, affect heating steam pressure; two pairs of boiler water circulation unfavorable, water wall tube burst will occur in severe cases. Thus, the sewage must be periodically according to "ground discharge, the discharge less uniform row" principle, provided hand operation. General Provisions at least once every eight hours of sewage, sewage each time shall not exceed 30s, overtime is strictly prohibited.

Recently, Jilin Province Shuangliao municipal authorities about illegal sewage and coal-fired boilers, industrial furnaces remediation work held a mobilization meeting.

Stressed the meeting, do a good job on illegal sewage and coal-fired boilers, industrial furnaces rectification work is to implement the central, provincial party committee decisions need to be deployed, is the need to lay a tough fight to win control of pollution is an urgent need for the construction of ecological civilization shuangliao , is fully successful completion of all levels of environmental inspectors "looking back" need feedback rectification work. Must always adhere to the concept of green development, environmental protection as an intrinsic factor in economic development, internal driving force, implement the most strict system, the most stringent rule of law, provide a strong guarantee for ecological construction.

Meanwhile, the meeting also called for, to understand the situation, address the gap, and enhance the sense of urgency, a sense of responsibility, strengthening conscious selves, issue-oriented, problem remediation ton output capacity determination to do a good job, rectification, lay the winning pollution prevention tough fight; to strengthen measures to intensify its efforts to promote detailed work task decomposition, do a good job related information in archives, a good grasp of time node, to ensure the completion of various tasks by time nodes; to strengthen departmental interaction, resolutely carry ecology political responsibility for environmental protection, and make concerted efforts, up and down, "a game of chess," the formation of remediation work together effectively to the work realistically catch fine catch results.

At the meeting, he conveyed the "Opinions on rectification of illegal sewage behavior" and "coal-fired boilers and industrial furnaces comprehensive improvement plan", and the related issues note highlights.

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