2t Natural Gas steam boiler Agent Commercial Nepal

What are the overall structure of the boiler boiler structure includes two major boiler and auxiliary equipment. Boiler furnace, drum, burner, water wall superheater, economizer, air preheater, and the furnace wall, etc. The main frame member constituting the core part of the steam production, called boiler. Boiler body is in two main parts and drum furnace. Also known as the furnace combustion chamber, fuel combustion for space. The solid fuel on to the grate, referred to as a fire bed combustion furnace Stoker, also known as fire bed furnace; solid fuel furnace liquid, gas or pulverized, is injected into the combustion chamber is called the fire chamber burner, also known as the furnace fire chamber; air coal particles burn hold it was boiling, and the furnace is inferior fuel suitable for combustion is called fluidized bed furnace, also called fluidized bed furnace; coal particles so that an air flow rotated at high speed, and strongly called fire cylindrical cyclone furnace hearth. The furnace cross-section is generally square or rectangular. Combustion fuel to form a flame in the furnace and high temperature flue gas, so the hearth around the furnace wall is made of refractory material and insulation material. On the inner surface of the wall of the furnace waterwall tubes often laid, it will not burn both protect the furnace wall, and absorb a large amount of radiation heat of the flame and the high temperature flue gas. Furnace design needs to fully consider the characteristics of the fuel used. Each boiler should be fueled with the original design of the fuel. Boilers running economy and reliability are likely to vary greatly reduced when using the characteristics of fuel combustion. And the natural circulation drum is repeatedly forced circulation boiler receiving feedwater to the economizer, the coupling cycle and supplying saturated steam superheater cylindrical vessel. Simplified drum made from high quality steel plate, is one of the heaviest components of the boiler. The main function of the water storage drum, a steam separator, brine and water excluded pot sludge in operation, to avoid the boiler water containing a high concentration of salt and impurities entering with the steam superheater and a steam turbine. Internal drum means comprises a moisture separator and a steam cleaning apparatus, water distribution pipes, sewage and dosing equipment. Wherein the effect of soda is separated from the water wall by means of saturated steam and water to leave, and to minimize the steam carried fine water droplets. Low pressure boiler used as a crude flap and slit baffle separating element; above except pressure in the boiler is widely used for various types of rough separation cyclone, but also with blinds, steel mesh plate or the like are vapor further separation. The drum is also equipped with water gauges, safety valves and other monitoring and protection facilities. In order to improve the design and performance assessment, often have to go through boiler thermal balance test. Direct methods to calculate the thermal efficiency of the boiler is called n-efficient use of energy balance, the heat loss from a variety of methods to counter the counter balance called computational efficiency. When considering the practical benefits of the boiler room, boiler thermal efficiency not only look, but also taking into account the energy consumed by the auxiliary boiler. Fuel per unit mass or unit volume of complete combustion, calculated according to the chemical reaction called the theoretical air quantity of air required. In order to have more opportunities to the fuel in contact with oxygen in the furnace combustion, the actual amount of air into the furnace is always greater than the theoretical air amount. While air can be reduced into a multi incomplete combustion heat loss, but the heat losses will increase, also exacerbate corrosion of sulfur oxides and nitrogen oxides generated. We should therefore seek to improve combustion technology, as small as possible in order for the excess air ratio in the furnace so that complete combustion. Dust contained in the boiler flue gas (including carbon black and ash), sulfur and nitrogen oxides are air pollutants, which can achieve emissions targets environmental regulations when unpurified indicators several to several tens of times. These substances emissions control combustion pretreatment, improved combustion techniques, dust removal, desulfurization and denitration. By means of a high chimney stack can reduce the concentration of pollutants in the atmosphere of the area. Flue gas dust removal force used gravity, centrifugal force, inertial force and acoustic adhesion, static electricity and the like. Is generally used for separating coarse particles gravity settling and inertial force, centrifugal separation is often used dust bag filters and electrostatic precipitators having a high dust removal efficiency at higher capacity. Wet venturi - water film adhering water film droplet precipitator ash, high collection efficiency can absorb gaseous pollutants. Since the 1950s, people strive to develop the comprehensive utilization of ash, harm into. The manufacturing cement, bricks and building materials such as concrete aggregate ash. Since the 1970s and from the fly ash cenospheres extracted as a fire-resistant insulation and other materials. Future development will further improve boiler thermal efficiency of boilers and power plants; reduce equipment cost per unit of power boilers and power plants; enhance operational flexibility and level of automation of the boiler unit; develop more varieties to suit different boiler fuel; and improve boiler unit the reliability of operation of the auxiliary equipment; reduce environmental pollution.

Shangqiu City, Henan Province in 2018 coal-fired boilers Chaigai capital subsidy policy

Shangqiu City coal-fired boilers Chaigai target

"Shangqiu City People's Government Office on the issuance of Shangqiu City in 2018 air pollution control campaign of the embodiments notice" clearly requires otherwise, the city completed the basis of 10 tons of steam / h boiler and Chaigai on coal-fired, coal-fired boiler demolition and gradually expand clean energy transformation range, guide and encourage medium-sized coal-fired boilers eliminated. Before the end of 2020, basically eliminated 35 tons of steam / h and coal-fired boilers within the scope of the urban planning area.

Shangqiu City coal-fired boiler subsidy

Shangqiu City coal-fired boiler subsidy implemented gradually decline Chaigai way.

The completion of the coal-fired boilers Chaigai before the end of October 2018, giving 60,000 yuan / tons of steam financial awards complement;

The completion of the coal-fired boilers Chaigai before the end of October 2019, giving 40,000 yuan / tons of steam financial awards complement;

The completion of the coal-fired boilers Chaigai the end of October 2020, the prize money will not give up. At the same time, it prohibited the use has been shut down, eliminated waste coal-fired boilers taking state funds.

Advanced equipment and principles of 2t steam boiler agent commercial nepal desulfurization and dedusting analysis of small and medium boiler outlet dust concentration in the combustion of various structures are much higher than the maximum allowable dust concentration values ​​specified in our standard, so in addition to the correct choice burning structure and improve operational level, to burn coal dust boiler equipment must also be provided at the rear of the boiler, the flue dust is then trapped into the atmosphere. Dust into five categories according to their action principle (1) comprises a gravity dust precipitator mechanical force, an inertia dust collector, a centrifugal dust collector. (2) comprises a water bath washed filter dust collector, a foam-type dust collector, venturi dust, water, dust and the like membrane. (3) comprises a filtering dust collector (4) an electrostatic precipitator and baghouse dust particle layer and the like. (5) a magnetic filter. Gravity settling dust collector 1. The principle is: When the flow rate of the flue gas into a large space to reduce soot particles by means of its own gravity larger, natural settling by gravity separated from the flue gas. 2. The cyclone dust cyclone called centrifugation, the principle is strongly flue dust along the cylindrical wall is rotated within the gas cyclone, and gradually decreased along the tubular wall a helical motion. Strong centrifugal force generated by rotation, the cylindrical wall surface of the body thrown dust, dust on the wall surface by gravity to the bottom of precipitator gradually decreased, and is discharged through hoppers. Purified flue gas is discharged from the middle of the dust core tube. Centrifugal mill precipitator 3. The principle is: the tangential direction into the flue gas at a high speed from the lower portion of the cylindrical housing, along the rotating cylindrical wall, the nozzle along the upper circumference of the cylindrical housing into a uniform tangential spray in when the inner wall of the cartridge housing forming a water film, since the centrifugal force, is thrown dust cylindrical wall, and the stick water film and water film flows along the conical hopper, is discharged from the ash discharge outlet, the purified flue gas from the housing an upper discharge.

The oil and gas fire tube boiler produced by ZG boiler has been used in food factories for many reasons due to its simple structure, convenient operation, high cost performance and cleanliness. The natural gas, oil or other fuel is burnt inside a furnace. The hot gases produced in the furnace then passes through the fire tubes. The fire tubes are immersed in water inside the main vessel of the boiler As the hot gases are passed through these tubes, the heat energy of the gasses is transferred to the water surrounds them. As a result, steam is generated in the water and naturally comes up and is stored in the water in the same vessel of Fire tube boiler. This steam is then taken out from the steam outlet for food processing. The water is fed into the boiler through the feed water inlet.

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