Industrial 4t Natural Gas steam boiler Automatic Maldives

Industrial production is inseparable from boilers, emission control of atmospheric pollutants boiler air pollution control in Shanghai to expand and intensify the focus of the project. Currently, Shanghai Industrial boilers alternative clean energy has been completed, nitrogen oxides (NOx) emissions of major pollutants as a boiler, the boiler due mostly low shelf emission source of ambient air near the ground and ozone greater PM2.5 influence, therefore, this release the new standard, the boiler will be low-nitrogen transformation, improve Shanghai air quality, protect people's lives and health and other aspects demand a strong thrust of great significance. Throughout the country, Beijing, Tianjin and other places have started low-nitrogen transformation boilers for low-nitrogen transformation has a more mature technology reserves. Based on the above considerations, for the effective control of NOx emissions from boilers, to further deepen cooperative control of PM2.5 and ozone, according to the standard first, to further accelerate the transformation of governance principles, it is necessary once again to revise the standard boiler.

According to local environmental standards and revision procedures, the Municipal Environmental Protection Bureau held a meeting to hear the relevant departments, enterprises and the opinions and suggestions of experts, and in 2017 August 4 to September 15 in the online open standard full text to solicit public opinion. At the same time the Ministry of Ecology Environment solicit written opinions Municipal Development, City Commission by letter and other related commissioned Bureau, industry organizations and boilers, production units and other enterprises. Municipal Environmental Protection Bureau and the Municipal Quality and Technical Supervision on January 19, 2018 organized the expert technical review meeting, the panel agreed that standards through technical review. Approval by the Municipal Environmental Protection Bureau and the Municipal Quality and Technical Supervision audit report to the municipal government.

The new standard has been revised for several aspects, one is no longer on the "central heating boiler and the nominal amount of evaporation less than 65t / h boiler cogeneration" provisions alone time; the second is to simplify the original class standard boiler merged into " gaseous fuel boiler "and" boilers "categories; are three different degrees of contamination tightened limits particulate matter, sulfur dioxide and nitrogen oxides; four new boiler is implemented from the date of implementation of this standard, the boiler given a transition period of about two years.

New standards for gaseous fuel boiler particulate matter, sulfur dioxide and nitrogen oxides are applied strict limits, but mainly considering the control of nitrogen oxide emissions, and further improve air quality. In the transition period boiler (1 October 2020) to limit nitrogen oxide 150mg / m³; after a transitional period of 50mg / m³. Date of implementation of new boiler nitrogen oxides from standard starting execution 50mg / m³ limit. Taking into account the comprehensive utilization of straw in Shanghai, biomass fuel boilers follows the standards of the original project control and limit requirements.

About the kind of industrial 4t steam boiler automatic maldives fuel oil boiler steam through the next, there are many main purpose, main features, a brief Automatic fuel gas steam boiler. A: The main purposes: food processing, printing and dyeing, pharmaceutical production and provide steam to provide steam sterilization, medical institutions, enterprises and institutions to provide steam for the other, the hotel's heating Automatic fuel gas steam boiler, the heating can also provide domestic hot water tank by . Second: The main features: 1, with central back burning structure, a large volume of water and gas boiler space, adaptable load capacity. 2, the indoor micro-pressure flame automatic steam boiler fuel combustion, the flame is fully extended, enhanced heat transfer, thereby reducing convective heating area, reducing the cost of the boiler. Smoke flow resistance is small, low-power consumption operation, operating cost savings. 3, in addition to the conventional four level height control, an additional level detector 5, the detection bit will stop when the boiler water, alarm, to ensure safe operation of the boiler. 4, the front smoke box special heat insulation materials, high temperature, low thermal conductivity, good anti-radical quenching heat capacity, greatly extending the life center back burning boiler before the smoke box, the furnace insulation is multilayer glass wool , light weight, low heat loss. 5, automatic oil-fired boiler steam pressure is controlled by Danfoss and Danfoss pressure controller and pressure transmitters joint control, pressure controller is responsible for ultra-high pressure interlock protection, prohibits burner working and alarm; pressure transmitter responsible for combustion engine to work to achieve some or all of control, to achieve automatic control of the exact steam pressure and steam pressure in the pressure range provided by a touch screen, detecting a pressure up to 0.002 MPa, more accurate pressure control. Thus avoiding a pressure controller general requirements of the production and the high vapor pressure of low pressure gas boiler or the actual requirements of the production of high pressure and low pressure gas boiler can not meet the disadvantages of the production requirements. 6, flue gas condenser fast side (optional) by the national utility patent, requires efficient use of steel-aluminum sheet Chi spiral tube heat exchanger, heat transfer surface is sufficient, the small side of the flue gas resistance of the system to meet the general burner. With flue gas condenser heat boiler efficiency can be improved more than 8%, the fuel gas savings of nearly 10%. These are the simple on automatic steam boiler fuel introduction want to be useful.

Gas boiler heat loss through the combustion of fuel gas boiler, will release some heat, which will supply part of the user, some will be recycled and part is inadvertently wasted. So these are wasted heat lost through the ways in which it (1) heat losses:? Flue gas exhaust gas boiler part of the heat into the atmosphere, causing the boiler heat losses, it is each boiler term heat loss Dazhong biggest one. The main factors influencing the heat loss is higher exhaust gas temperature and the amount of smoke exhaust gas temperature, the greater the amount of smoke, the greater the heat loss. Low exhaust gas temperature depends mainly on the number and operating conditions of the heating surface; the amount depends on how much leakage exhaust case and the furnace excess air, flue. (2) heat loss incomplete combustion gas: a part of the unburned combustible gas is discharged with the flue gas to heat loss caused by heat in the flue gas. The main factors affecting the incomplete combustion gas heat loss is the excess air and furnace structure. Excess air coefficient is too small, uneven air is mixed with fuel, easy to generate carbon monoxide and other combustible gases; excess air coefficient is too large, the furnace temperature is lowered, the combustible gas is not easy ignition and combustion. Furnace volume is too small, combustible gases in the furnace too late to enter the combustion flue gases caused by incomplete combustion heat loss. (3) heat loss: the furnace heat loss, frameworks, pipes, door opening caused by heat dissipation to the surroundings. Size depends on the heat loss factors of the size of the surface area of ​​the furnace gas industrial 4t steam boiler automatic maldives, heat insulating properties and thickness, the outside air temperature and the flow velocity. Electric heating reactor common external damage: an electrically heated reactor despite external corrosion has a high etching resistance against acid and alkali resistance, but our electrical heating by the heating apparatus is a kettle layer and an outer tire iron constituted. Such a medium is iron acids and bases are not corrosion-resistant. If we would have the production process if the reactor cover or screwed pipe joints without seal failure or leak acid tire iron reactor apparatus for electrically heating the outer corrosion. Corrosion support member 2. The reactor was heated electrically heated reactor during installation, support or other support member may be mounted directly on the floor, due to the long manufacturing operations on the floor may be deposited with corrosive media, so that for support our reactor electrically heated apparatus corrosion, resulting in the supporting force of each of the support produces a change resulting in a change in stress in the damage produced during heating layer. 3. The electrically heated reactor stress spout in the electrically heated reactor, when the steel of the pipe and the pipe joint, since the thermal deformation and the reaction was heated electrically heated autoclave vessel or duct stressed cold might damage the pipe.

Gaz than industrial 4t steam boiler automatic maldives should be how to calculate? Q: ratio of gas steam boiler gaz simple algorithm is multiplied by the calorific value of coal and boiler efficiency is calculated by dividing this simple assumption does not heat to the steam boiler efficiency of 80%, coal calorific value 5500, if the amount of steam produced a ton of coal can be calculated as follows * 0.8 = 5500/600 = 7.3, ie: gaz ratio of 7.3 can be calculated simply, is this right? A: According to your argument: the amount of steam a ton of coal produced, commonly referred to as the evaporation rate of the fuel, commonly known as steam coal ratio. The calculation formula is: base received low calorific value of coal is then divided by multiplying the thermal efficiency of the boiler (steam heat feedwater minus heat). You said above is correct.