combined heavy oil fired condensing boiler

combined heavy oil fired condensing boiler

Pressure maintenance, combined fired condensing boiler pressure exceeds the rating linkage Maintenance: Measures is shutdown, the combustion system to stop working; also be changed fire mouth, single-stage or two-stage combustion, also conditioning oil, then the buck, to ensure the safety of boiler operation. Pressure manipulator: Usually manipulator with two pressure, the pressure signal converted to an electric signal electromechanical conversion device, its function will be the high pressure or low levels of signal to the electrical switch, external circuits actively control or chain protection. Safety valve: safety valve is the last line of defense in maintaining the boiler, when the boiler pressure exceeds the limit, according to the set pressure relief valve design feature, the exhaust pressure relief, to ensure the normal operation of the boiler.

Recently, Jilin Province Shuangliao municipal authorities about illegal sewage and coal-fired combined fired condensing 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.

What differences have low nitrogen combined fired condensing boiler with ordinary boilers? We all know now the boiler furnace oil and gas market sell very popular, especially for low NOx combustion of furnace oil and gas is in short supply. However, for many boiler manufacturers, the low nitrogen technology is even more difficult to overcome the problem, the birth of low nitrogen boiler is a milestone, a professional low nitrogen furnace boiler developed by the company's low-NOx combustion technology has been widely used in the industrial boiler application. 1, since the difference in emission layer burning combustion mode, combustion chamber, different circulating fluidized bed boiler, the furnace in different structures, the original NOx emissions which there are large differences, in general, not specifically for low NOX combustion furnace technology employed when , circulating fluidized bed low NOx raw emissions, NOx emissions to the original furnace chain represented slightly lower layer burner, pulverized coal-fired boilers industrial boilers room, the higher the NOx emissions original, well-known low nitrogen emissions from boilers are but Greatly reduced. 2, the different layers combustion boiler technology, combustion chamber, circulating fluidized bed boiler may be different with different low NOx combustion technique in accordance with the combustion mode, the combustion boiler for the air distribution layers using an air classifier, and more often to achieve low nitrogen Gas Recirculation combustion; under typical flue gas recirculation layer influence combustion boiler combustion zone, in conjunction with the air fractionation techniques for reducing NOx by catalytic char; super reduction furnace denitration technology in recent years, new furnace denitration technology, by combustion reasonable location of the flame spray region ammonia, direct denitration at a high temperature flame. Low Nitrogen mainly the secondary air boiler, the coal to the location and distribution of optimal adjustment of the mouth, or the like to increase the flue gas recirculation system. 3, at different central security layer after combustion, combustion chamber, low-NOx combustion furnace circulating fluidized bed boiler technology a large number of tests performed, it has been verified in engineering applications, in general, a low nitrogen boiler to safety higher, the reason why in recent years, its sales volume increasing, there are many users because of its high security, a small threat to the space environment to buy, and this is one of its important differences with ordinary boilers.

What are the three common combined fired condensing boiler combustion? Urban coal-fired boiler has been difficult to solve, because especially small coal-fired boilers type cluttered and more widespread particularly difficult to handle. On the one hand burning low power, on the other hand is more a waste of resources. Under the requirements of environmental protection requirements, many cities in the relevant part of the requirements necessary gas (oil) boiler retrofit or replacement of 10t / h coal-fired boilers. The transformation of the former needs to focus attention to the following questions: whether the site is useful region of central heating boiler heating of small alternative program. The useful life and corroded boiler, if the boiler by Zhengzhou fast boiler or other professional testing organization to determine the useful life of less than five years, the transformation of value is not high. Determine whether the laying of gas pipeline convenience, liquefied petroleum gas or other fuel supply and transportation issues. Comparing the cost of renovation and equipment manufacturers advantages and disadvantages, in determining the needs of the transformation plan in compliance with these principles. Selection of fuel. Under the premise of fuel sources have, the most economical natural gas pipelines, liquefied petroleum gas, followed by a final light diesel oil. Also, consider the surrounding environment from fire and explosion safety. In general, the system and the soda boiler pressure parts and preferably not modified to adhere to the original power, are demand, under conditions not substantially change the pressure member, than the original power increased by 10% to 20%. Boiler pressure parts for major changes in the program desirable. The transformation process is necessary to ensure the safety of boiler pressure parts of (mostly small commercial general pressure boilers), followed by incineration system to ensure the safety factor, the decline in the risk of explosion, fire accidents. Recognize the transformation of the planning process, in a timely manner, the environmental protection, the gas company, fire department, urban construction and timely communication with the boiler section to monitor and ensure the transformation plan can proceed smoothly. When the boiler is burning way during boiler selection will take into account an element, the following three common boiler burning approach advantages and disadvantages brief analysis cf: 1 Decentralized incineration strengths: this way is not burning premixed, but the gas nozzle mouth dispersed with each other, and then burning it. Incineration relatively simple way, as more stable as compared to the flame. Disadvantages: Due to a longer flame, it is prone to the phenomenon of incomplete burning, more carbon monoxide and nitrogen oxides will occur, it is not conducive to the use of full-fired boilers, to improve the thermal power of the boiler, and the boiler emissions standards are difficult to reach. 2. premix approaches incineration advantages: premixing air and gas, a multi-way heat radiator, to improve the strength of heat transfer. Strengths of this approach is that the burning of the burning flame is more clear, and the higher heating power. Disadvantages: incineration requires precise ratio premix burning rate is fast, uniform burning radiant heat transfer full power high flame temperature below 1200 deg.] C, all NOx completely burned and the occurrence of low flue gas temperature, condenses, good heat recovery and high power. 3. No flame burning incineration space before incineration approach uniform mixing with the gas in the gas boiler. When using this approach, in the process of incineration gas in the oxygen demand is not made in the ambient air demand, only needs to achieve instant complete incineration air mixture reaches the incineration zone. Approach in the selection of incineration, incineration demand for the advantages and disadvantages of different approaches, carried out mutatis mutandis selection, a good way is also advantageous burning boiler to reach plenty of incineration, thermal power increase, decrease the role of emissions, and therefore, it is important to choose carefully.

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