"Henan 2018 campaign of air pollution control plan" recently introduced, to guide and encourage medium-sized coal-fired pressure fire tube boilers eliminated. In the province's foundation 10 steam tons / hour and the coal-fired boiler Chaigai, and gradually expand the boiler removal and clean energy transformation of coal-fired range, before the end of 2020, the basic elimination of provincial cities planning area 35 steam tons / hour and coal-fired boilers.
Financial awards complement the way:
1, the completion of the coal-fired boiler Chaigai before the end of October 2018, giving not less than 60,000 yuan / tons of steam financial awards complement;
2, the completion of the coal-fired boiler Chaigai before the end of October 2019, giving not less than 40,000 yuan / tons of steam financial awards complement;
3, the completion of the coal-fired boiler Chaigai before the end of October 2020 no longer give financial awards complement.
Further, out of the boiler removal methods include eliminated, an alternative centralized heating boiler, coal gas, coal to electricity, use geothermal, wind, solar, biomass with baghouse, clean coal to burn not including , CWS, anthracite, semi-coke, green coke, crude oil, coal-fired boiler removal must be removed chimney or flue physical cutting, it does not have the complex production conditions. Do not use has been shut down, eliminated waste coal-fired boilers to cash rewards and subsidies. In the process of new coal-fired boilers to switch to natural gas to be synchronized to achieve low nitrogen transformation.
Boiler then its on concrete steps are as follows: First, look at the pressure fire tube boiler is oil or gas or coal-burning type, then, for auxiliary boilers, valves, instrumentation and safety accessories, check whether it is intact . Thereafter, the induced draft fan is open for ventilation, and then, for ovens and oven cooking operation. Meanwhile, combustion, a small fire after the first fire, and the first open to open the induced draft fan blower. In this way, the entire process can be completed well in Boiler.
The wns series boiler produced by ZG boiler is a horizontal internal combustion furnace. It adopts a large-area combustion chamber design and fully burns to increase the combustion efficiency of the product. The oil and gas boiler belongs to a fire tube boiler, and the flue gas flows through the fire tube. It is a small-capacity boiler with a capacity ranging from 1 to 20 tons, and has a simple structure and convenient operation and maintenance.
Henan pressure fire tube boiler manufacturers fuel gas combustion boiler features a contrast, combustion of fuel is a liquid fuel and fuel oil, its boiling point is always lower than the ignition point, so that fuel combustion is always performed in the gaseous state. Fuel oil particles atomized by the jet into the furnace after the furnace is heated by high temperature flue gas, gasification, and hydrocarbon ambient air encounters the oxygen gasification, a flame. Heat produced by combustion of oil particles pass a part of the gasification and combustion of oil particles continuously, until the burning ember. The smaller the diameter of oil particles, the faster the combustion of oil particles. Similarly, the oxygen required for combustion of oil particles can be supplied in time, the combustion of oil particles can more quickly. Therefore enhanced combustion of oil must do the following: 1, to improve quality of atomization, the oil particle diameter is reduced; 2, increasing the relative velocity of the air and oil particles; 3, reasonable air distribution. Second, the combustion gas boiler manufacturers Laid Henan boiler ignition gas with a high calorific value, large amount of air, can make the combustion gas, a large amount of air mixed therewith. No fuel combustion gas atomization process with the gasification process. Gas and air mixing mode, the flame length and flame temperature has a significant impact on the intensity of the combustion. Depending on the mixed mode, the combustion method of the boiler manufacturer Henan gas boiler can be divided into three types: 1, i.e., this method does not pre-mixed combustion diffusion combustion, but interdiffusion gas nozzle opening, and burned. Shao Shao stability advantages, the structure of appliance is simple, but the flame is longer, easy to produce incomplete combustion and carbonization of the heated area. 2, partially premixed combustion air prior to combustion such a way that the combustion of part of the air mixed in advance with the gas (primary air excess coefficient between 0.2-0.8), followed by combustion. The advantage is clear combustion flame, combustion strengthened, high thermal efficiency. However, combustion instability, and high combustible component of the control primary air requirements. The gas burner usually used such combustion. 3, i.e. flameless combustion air which has been uniformly mixed with the combustion gas prior to such gas required for combustion. Primary excess air ratio is equal to the excess air ratio for complete combustion of the fuel required to obtain oxygen from the ambient air during the combustion process. When the combustion gas and air mixture reaches the combustion zone can be completed in an instant.
2015-10-2·Hi Can you please advise what is the minimum operating gas pressure on the boiler? I have been told by one of gas safe engineer that if the pressure is below 16.5mb for combination or system boiler, he cannot issue gas safety certificate.Get a Quote
CWNS Series Oil/Gas Fired Hot Water Boiler. Zhongding oil gas fired hot water boiler under normal pressure is horizontal three return fire tube hot water boiler It equipped with good performance burner and advanced techniques The burning control, water feed, and program run, etc, are full automatic this boiler is safe and reliable, and also has the advantage of compact structure, simpleGet a Quote
2017-12-22·boiler contains a safety valve that, when the pressure becomes too high due to blockage or overheating, releases the excess steam. Project Description Our engineering team designed a threepass fire tube steam boiler with a capacity of 5000 kg of steam per hour and a operating pressure of 10 bar.Get a Quote
Sitong Boiler is a national approved and designated enterprise,Gas fired boiler is one the main product, it includes steam boiler, hot water boiler and thermal oil boiler.Get a Quote
Fire-tube boiler - Wikipedia. A fire-tube boiler is a type of boiler in which hot gases pass from a fire through one or (many) additional draught is supplied by directing exhaust steam from the cylinders into the smokestack through a blastpipe, to provide a partial vacuum.Get a Quote
Series 300 Fire-tube Boiler. Vertical Tubeless Boiler package serves your process, light-commercial, and comfort heat requirements, all in a single space saving arrangement. Series 400/500 Fire-tube Boiler. Our world-class three-pass dry and water-backed designs are the standard for packaged fire-tube boilers. The most versatile Scotch MarineGet a Quote
Boiler Tube | Webco Industries, Inc. Since 1969, Webco has provided seamless carbon/alloy and welded carbon tubing products for pressure tube applications in petrochemical, commercial fire and water boiler service, and requirements in a variety of other industries.Get a Quote
2017-8-9·fire tube boilers with a minimum heating surface area of 5 square feet per boiler horsepower. Other types of high pressure, fire tube boilers are readily available, but are omitted from this specification. 4. Contract drawings must include (as applicable) the VA National CAD Standards listed below: SD235239-01 Fire Tube BoilerGet a Quote
2019-8-19·Fire tube boilers, we have LHS WNS model for your choose, LHS is 200kg-2000kg vertical type boiler, WNS is horizontal type fire tube boiler, design capacity in 0.5ton-20ton, Fuel could be gas oil diesel heavy oil lpg cng, etc. with modern appearance, compact structure, reasonable heating surface layout and energy saving.Get a Quote
vertical water tube boiler for pharmaceutical industry . Fire-tube boiler Wikipedia A fire-tube boiler is a type of boiler in which hot gases pass from a fire Vertical fire-tube boiler Fire-tube boilers sometimes have water-tubes as Steam Boilers, Pressure Vessels and Deareators | Concept Made in Melbourne by skilled The Concept Hot Water Boiler is a Vertical Water Tube and maximizingGet a Quote
Fire tube Boiler (F Type) Similar to the Vertical Tube, the Fire Tube is also a compact-sized boiler, but can be fueled with coal, gas, and oil. The boiler rating is 743-7427 kW (1000-10000 kg/h) and build based on Wet Back design, making it responsive towards changes in heat load.Get a Quote
2019-8-15· dzl series chain grate coal-fired boiler is a fast-assembly water-fire tube boiler with two-wing flue technology as the core, has the advantages of compact structure, reliable operation, small volume, large output, fast boost and high thermal efficiency.Get a Quote
The difference between fire tube boiler and water tube boiler can be done on various points. These points includes types of fluid flows within the tubes, steam generation rate, floor area required for the steam generation, transportation, efficiency, fluctuating loads, operating cost etc. the knowledge of the difference about these two boiler is very crucial.Get a Quote
2019-8-23·Fire Tube Boiler: In a fire tube boiler, hot gas passes through the pipes and boiler feed water is inside the shell to be converted into steam. Fire tube boilers are usually used for relatively small steam capacities with low to moderate steam pressures.Get a Quote
2019-8-15·Except natural gas, the boiler can also burn other oil or gas fuel, such as city gas, LPG, diesel, heavy oil, etc. The natural gas fired steam boiler is fast assembly fire tube boiler with three pass structure, it has compact structure, small volume, strong load adaptability andGet a Quote