advantages and disadvantages of steam boiler

For the continuous improvement of the province's environmental air quality, enhance people's happiness index, Henan Province Government Office issued the "2019 campaign of air pollution control implementation plan." Details are as follows.

1, to carry out special treatment industrial furnaces

Based on the melting furnace, the melting furnace, sintering machine (furnace), roasting furnace, a heating furnace, heat treatment furnace, a drying furnace (kiln), coke oven gas furnace 9 categories, to carry out an intensive investigation, the establishment of industrial furnaces Details inventory management, enhance the implementation of classification regulation. Not included in the investigation of industrial furnaces list, all included in the autumn and winter peak load shifting discontinued inventory.

2, to carry out clean alternative

Of coal, petroleum coke, residual oil, heavy oil as the fuel of a heating furnace, heat treatment furnace, a drying furnace (kiln), and actively promote the use of natural gas, electricity and other clean energy and the use of plant waste heat, heating power plant and the like instead.

3, to carry out comprehensive improvement of industrial boilers

Before the end of October 2019, in addition to undertaking tasks and will not have the alternative livelihood conditions, the province's basic complete 35 steam tons / hour boiler clean energy transformation or removal of coal-fired. Transformation methods include the removal, an alternative central heating, gas coal, coal to electricity, use geothermal, wind, solar, biomass with a bag filter. Chaigai on schedule to complete the coal-fired boilers, based on 40,000 yuan / tons of steam prize money up. Forbidden to use has been shut down and eliminate waste coal-fired boilers to cash rewards and subsidies.

4, strengthen upgrading gas-fired boiler

Before the end of October 2019, the provincial municipality and county (city) district built more than 4 tons of steam and low nitrogen gas boiler complete transformation after transformation, soot, sulfur dioxide, nitrogen oxide emissions are not higher than the concentration of 5,10,50 mg / cubic meter.

5, strengthen upgrading oil-fired boiler

Before the end of October 2019, the provincial municipality and county (city) district built more than 4 tons of steam and fuel (including alcohol-based fuel) boiler low nitrogen complete transformation after transformation, soot, sulfur dioxide, nitrogen oxides emission concentration is not high in 10,20,80 mg / cubic meter.

6, vigorously promote urban central heating

Full use of existing resources and central heating facilities, the existing large-scale heat sources and central heating pipe network in the area, in-depth investigation heating demand, and promote the rich heating capacity extends to reasonable radius and root out the potential heating, heating reduce blind spots. Before the end of October 2019, Zhengzhou, Anyang, Jiaozuo, Puyang City, built-up area of ​​central heating penetration reached more than 90 percent, Xinxiang City, central heating penetration reached more than 85%; Luoyang, Xuchang, Jiyuan City, central heating penetration reached 3 more than 80%; Sanmenxia central heating penetration 75% or more; unsealing, Pingdingshan, Hebi, 4 Zhumadian City, central heating rate of 70%; Luohe, Shangqiu, Nanyang 3 City central heating penetration reached 60% .

29 MW palm shell biomass boiler in Malaysia

The One Belt One Road Strategy has played an important role in promoting Zhengzhou Boiler Co., Ltd. overseas market expansion. Zbg Z has repeatedly cooperated with Malaysian companies.

Common forms and functions of household gas boilers What? Eyes looking at the winter to come, even a little bit cold in the morning, consider the division of winter heating, radiators and underfloor heating is still the most of my friends were like, whether it is considering radiator, is still considered to warm, in selected household heat source division, the boiler is not open around a big problem regarding a lot of terms is a boiler plate replacement, the machine casing, dual furnace, the furnace system, stainless steel, cast aluminum, is really incomprehensible. Today it is concerned about several different approaches boiler it only in the discussion of domestic gas boilers. Domestic boilers divided by FunctionClassification: dual furnace, the furnace system according to the preparation of a hot day separable way to catalog: telescopic, replaceable plate, Double-tube, coil type heat exchanger tank by combustion approach can be divided into: general type, condensation type, general type premix, premix condensing type to start from the beginning of the function classification, dual oven is heating / hot water dual-use furnace day, you can put the fantasy of dual-use furnace into two water heaters, a as heating, hot water a day served. Furnace system, the same day warm hot water to meet the needs of mining, but the furnace system, the system can not take direct hot day, will need to work a coil hot water tank to meet the day. Preparation of Hot Press day classification approach: the sleeve is more common board for boilers and boiler, Double-tube boiler tank and a heat exchanger coil boiler is not common. Tube boiler: the market still find many, operation principle is similar to gas water heaters, water enters the main heat exchanger, a boiler heating the board for a flame to obtain hot day. The so-called sleeve means its main heat exchanger, and the day of the hot water circuit loop approach Pipe sleeve tubular heating sleeve together, simple structure, low cost, low failure rate. Machine main heat exchanger casing of this disadvantage sleeve machine being characterized by a tubular sleeve so large pipe, the hot water is always heated days, when the winter heating hours, days open water, in the form of heating boiler is switched from the hot water to form days , out of the top section of the water temperature will be very high, there is a potential risk of burn people. And the structure of its resolution casing machine power is not too large, usually 18kw to 24kw. Board for boilers: boiler plate for comparison on the market now is the mainstream model, to change the boiler plate for heating hot water in the form of day, and adds a three-way valve and plate heat exchangers, the stability of such hot water progress, very comfortable with them. Premix condensation furnace: furnace premix combines the advantages of condensing premix boilers and recovery boiler flue gas, the thermal efficiency can reach about 98% -110%, with a minimum power boiler can reach about 2-5kw, improved energy efficiency . The premix condensing furnace is not directly applied in a boiler condensate return tank, but directly to the main heat exchanger of the boiler is increased, to increase the heat exchange area, so that the direct condensation of flue gas in the combustion chamber. Premix condensing furnace production process each manufacturer has a different, unlike the switch plate has been immobilized, but the fan frequency, accurate scheduling gas proportional valve, the main heat exchanger against corrosion that is required several standard accessories. Fume recovery boiler: low temperature into boiler return water condenser tank, high temperature flue gas also enters the condensate tank, the two heat exchange, heat exchange efficiency of the boiler can reach 97% As mentioned above, natural gas-fired comes mostly methane there is also a hydrogen sulfide, hydrogen sulfide from natural gas by deodorant. In the high temperature combustion of hydrogen sulphide attack sulfur dioxide, nitrogen in the high-temperature air generated nitrogen oxides, and the condensate tank will decrease the flue gas temperature, flue gas water vapor was separated in a liquid approach, reaction of water with sulfur dioxide and nitrogen oxides produced sulfite , nitrous oxide, sulfuric acid becomes about nitrate and corrosive, relatively poor corrosion condenser tank simple. Another problem is the problem of fouling of the furnace flue gas condensing recovery, because the presence of fouling by air, moisture condensed out of the box, can cause the dust adheres on the boiler main exchanger. General premix Oven: fan such boilers are converted, depending on the boiler board computer to schedule power boiler gas boiler intake air, the fan speed with the scheduling boilers, gas and air control in a very appropriate proportions into the combustion chamber combustion, thermal efficiency progress. This progress boiler thermal efficiency of the boiler, but do not attack the condensate water, but because the use of variable frequency fans, the price relative to the average furnace will be higher, but because of his air volume ratio and the amount of gas is very suitable, so nitrogen oxide emissions basically amount can be qualified, basically as long as this stove can get blue sky in the oven so that the general standard. With such machines because the use of air blower frequency, minimum power boiler can be made smaller.

Gas-fired hot water boiler, which is one of the hot water boilers, and is also a common and common type of boilers, therefore, based on this, and in order to let everyone have a comprehensive understanding and understanding of the types of boilers, below, Will carry on the gas boiler related knowledge explanation work, so that everybody has a deep understanding of it, and at the same time, can also increase their own professional knowledge.

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