gas hot water boiler heating system

There are reasons for chemical plant boiler water wall high temperature corrosion which causes of high temperature corrosion chemical plant boiler water wall What are the causes of high temperature corrosion chemical plant boiler water wall which 1, raw coal sulfur compounds according to relevant statistics analysis shows that coal inorganic sulfide occurrence sulfur-based, accounting for 60% to 70% of the total sulfur content, the remaining 30% to 40% is organic sulfur. Occurrence majority of the inorganic sulfur in the form of pyrite, sulfate, only a small fraction of inorganic sulfur content of the sulfur in coal measurement results shown in Table 2. The morphology of pyrite by more slagging and corrosion of boiler serious implications, and therefore subject to people's attention in the course of practice, but often ignore the corrosive effect of sulfate on the Wall. Thus, in practice it is necessary to form during combustion of sulfur in coal is measured. 2, the chemical analysis of coal coal boiler is 50% to 50% of anthracite and bituminous coal, coal testing seen from the data of research institutions, the volatile coal employed in the chemical, crystalline water, CO2 and other non-combustible or higher levels of flame-retardant component, low CH4, H2 and other combustibles content, higher temperature requirements volatile release, slow release, long time to burn coal, high ash content of the combustion, appears likely to cause the waterwall reducing component. 3, the size of the inscribed circle boiler chemical analysis boiler designed to be used with pre-mixed coal, to achieve the purpose of enhancing combustion, therefore the design Tangentially Fired large, will cause a large inscribed circle after the formation of the combustion of coal pulverized coal, gas and other substances appear high temperature corrosion. Related experimental results also shows that, when the circle diameter of the boiler in the range of 8 ~ 8.3m, after leaving a nozzle air flow deflection under the action of mixing the secondary air mixed gas stream is significantly down and floating inscribed circle than the other Big. 4, when the airflow and dual channel burner boiler design analysis consider using bituminous coal and anthracite mixed, the use of a secondary higher wind speed, a wind speed is low, the size of each of 43.5m / s, 22.5m / s, a , the second big difference wind speed caused the jet rigid significantly different. Due to the impact of differences in conditions and the gas stream upstream sides of adjacent angles of qi, when a secondary stream ejected from the burner, the air flow occurs toward the back direction of the flame to the water wall offset time smaller jet velocity Merry occurs a more obvious than the secondary airflow offset such that once the separation between the secondary air flow significantly. By using correlation analysis tests like long streamers understood, a significant portion of the air flow downstream of the boiler walls against movement, so this part of the secondary air flow departing from the airflow direction, coal and other combustible materials in the combustion under insufficient oxygen supply, a certain amount reducing gas component. Because the use of the two-channel burner design, a secondary air flow separation phenomenon of increasing offset, to some extent, when a relatively strong reflux in the boiler, the flue gas, the better the effect of reflux, the more obvious the effect of fuel combustion, but it can also lead to increased attenuation of a romantic reflux stronger. Dual-channel design such that the outlet area of ​​the burner than traditional single channel many large exit area, but also makes the primary air flow greatly reduced exit velocity. The foregoing analysis, and a dual channel design, the secondary air flow speed difference, so that a significantly reduced stiffness airflow, airflow offset serious, prone to high temperature corrosion in the waterwall. Analysis of coal pulverizing system thickness 2.5 coal boiler is based on coal and coal burning coal designed, when using low-quality coal, pulverizing system load increases, reducing the separation effect, resulting in coal particle size increases, the thickness of the pulverized coal has a significant effect on high temperature corrosion of the boiler, coal particles increase when the torch burning in a boiler long prone to decrease the effect of the combustion of pulverized coal, coarse coal particles are not completely combusted powder boiler water wall in the vicinity of the bond, so that high-temperature corrosion intensified.

Advantages and characteristics of electrically heated boilers: 1. The high quality heat source heating system can output the hot oil up to 350 ℃ for the thermal user under normal pressure liquid phase. The heating system all adopts Japanese Fuji temperature control instrument, uses the PID self-tuning intelligent temperature control technology, the control precision can reach ±1 ℃, the accurate control temperature range; The main heating power supply adopts solid-state module contactless switching circuit, adapts to frequent switching, and does not interfere with the power supply network. It also has anti-dry burning. The hot oil cooling system can be designed according to the user's requirements to meet the production process requirements of rapid cooling after heating up. 2. Energy saving, low operation cost of heating system is liquid phase closed-circuit circulation, the difference between oil outlet temperature and return oil temperature is 20 ℃ 30 ℃, that is to say, the temperature difference can reach service temperature only by heating 20 ℃ 30 ℃. At the same time, the equipment does not need water treatment equipment and there is no steam boiler running, run, drop, leakage and other heat losses, heat utilization rate is very high, compared with steam boiler, about 50% energy saving; Less investment in equipment because the heating system is simple, no water treatment equipment and more auxiliary equipment, boiler bear low pressure, so the whole system investment is less; 4. Safety because the system only bears pump pressure, heating system explosion-free The explosion is dangerous, so it is safer; 5. The environmental protection effect of environmental protection organic heat carrier boiler system is mainly reflected in the few emissions of flue gas, no pollution and thermal pollution. Characteristics: 1, low operating pressure: liquid phase conveying heat energy, can obtain a higher working temperature under lower operating pressure, heat carrier than the saturated steam pressure of water 70 times lower, the general operating pressure of heating is ≤ 0.3MPa. 2, high heating temperature: heating furnace heating temperature up to 280 ℃; automatic control of heating temperature, high sensitivity, stable heating. 3, safe and reliable: Fangkuai specialized in R & D and production of boilers, with Perfect operation control and safety monitoring device, easy to operate, safe and reliable. 4, environmental protection design: boiler equipment is equipped with a new type of electric heating system, electricity instead of coal, saving investment, environmental protection and pollution-free, at the same time the boiler heating up fast, high thermal efficiency, high efficiency and more economical!

Our jewelry processing company in the automotive production, many processes require energy, to be honest we really a headache on the choice of the boiler, thanks met specializes in the research and production of fast square boiler boiler! The purchase of two Taipower hot water boiler heating system, tangible help us save a lot of costs. --customer feedback

Technical characteristics: the overall cost of natural gas boiler is half the coal-fired boilers, and operation costs are four times as coal, a ton of steam needs to burn about 80 cubic meters of natural gas, and coal-fired no more than 0.185 kg, the economic accounts will be considered . Select the gas boiler it under certain conditions choice of last resort. As well as on the performance of the gas is better than coal. In principle, they are heat transfer equipment, the difference is that on combustion, complex grate or coal, coal preparation, etc. as well as coal needs, while gas only burner that simple. Use of cleaning gas boiler: boiler after a long run, the inevitable emergence of scale, mainly due to the scale of the problem of corrosion, formation of boiler feed water with hardness components, through subsequent high temperature and pressure continuously concentrated by evaporation in a furnace a series of physical and chemical reactions that ultimately form a hard heating surface, a dense scale, resulting in reduced heat transfer and the effect of corrosion under the scale factors, will result in reduced boiler waterwall furnace heat absorption, furnace outlet temperature of the boiler is increased, so that increased boiler losses. After scaling while reducing the heat transfer within the water wall, water wall tube wall temperature may lead to increased water wall lead to burst pipes, affect the safe operation of the boiler. The first of scale is detrimental boiler, the boiler is the main cause of accidents, the danger main problems: wasting a lot of fuel: Because only one of very few steel thermal conductivity of scale, so when the heating surface fouling will heat blocked, in order to maintain a certain boiler output, it is necessary to increase the temperature of the side of the fire, so that the external radiation and flue gas heat loss. Now it can be used efficient and environmentally non-corrosive cleaning agent gas boiler cleaning, cleaning Fu World Tektronix cleaning agent scale was completely dissolved, the equipment expose the metal tube primary colors, because the reduction of algae and biological sludge fouling effect. At the same time stripping the role of iron oxide and iron oxide Asia, extended gas boiler service life, reduce energy consumption and improve productivity.

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