industrial automatic nature gas fired steam boiler
The reason you need to know the boiler energy consumption (reheat steam temperature) reheat steam temperature problems 1. Circumstances reheat temperature rises 1.1 Move boiler furnace flame center, furnace outlet temperature increases (see main economic indicators No. 5 boiler exhaust gas temperature). 1.2 coal increased too fast. 1.3 Excess air amount is increased. 1.4 pulverizing system start-stop. 1.5 Automatic control of the reheater desuperheating water improper adjustment. 1.6 reheater sootblowing time poor choice. 1.7 feed water temperature is low. 1.8 the high pressure turbine exhaust temperature is high. Next to the 1.9 high leakage, high reheater inlet temperature. Hot and cold extraction section greater then 1.10. 1.11 boiler heating surface design is unreasonable, over-temperature reheater tube wall, forced cooling operation. 2. Reheat the following partial flame temperature is lowered center 2.1: burner tilt deviation, hem; burner is switched from the upper to the lower layer, the lower layer or to an excessive amount of the powder; volatile coal fraction is increased, the pulverized coal thinning, water reduction. 2.2 reheater heating surface fouling, slagging, fouling the interior. 2.3 Save reheat the heated drain valve. 2.4 automatic adjustment inappropriate, excessive reheater desuperheating water. 2.5 feedwater temperature. 2.6 economizer and water wall sootblowing time poor choice. 2.7 reduce the amount of coal too fast. 2.8 # 1, # 2 high pressure heater is disabled, increasing the reheated steam flow.
Laundry hotel special reference to the current selection of industrial automatic nature fired steam boilers Hotels generally use the hot water boiler for heating and sanitary hot water, kitchen utensils gas can be directly used, but still need to supply steam laundry room, laundry room steam supply pressure to be 0.4-0.6 MPa, generally an amount of steam in the hotel laundry 0.5 ~ 2.0T / H, steam day with about 3 to 10 tons. Under the premise of the city's coal-fired boilers can not be used, the choice of energy sources natural gas, diesel, liquefied petroleum gas, electricity, in what exactly it is more appropriate? First use to compare the cost of various energy sources, according to Henan hotel energy prices, natural gas is 3.0 yuan / Nm3, diesel 9.0 yuan / kg, liquefied petroleum gas 15 yuan / Nm3, the price of 1 yuan / kwh. Compare 1 ton of steam produced by a variety of energy costs as follows: Energy Category Energy calorific value of natural gas in energy costs per ton of steam 8600kcal / Nm380m33.0 yuan / Nm3240 yuan / ton diesel 10400kcal / kg66kg9 energy consumption per ton of steam energy prices. 0 yuan / kg594 yuan / ton liquefied 22000kcal / Nm331m315 yuan / Nm3465 yuan / ton electric 1kwh700kwh1 yuan / kwh700 yuan / ton Note: energy consumption efficiency estimated by conventional steam boiler; Nm3 refers to the standard state volume of gas M3; calculated from the above analysis, the use of natural gas per ton of steam lowest cost, most economical operation, electrically heated steam up costs. Gas steam boiler typically 2 to 3 sets of selection, single nominal amount of evaporation 0.5T / H ~ 1.5T / H. Gas-fired steam boiler boiler range belong to the state regulators, the need to build a separate boiler room, not like pressure hot water boiler as the main building or in the basement, while the city hotels are often difficult to have a location to build a separate boiler room. In recent years, there is a new type of gas steam boiler, the water capacity is small (less than 30L), a single evaporation accessible 1T / H, do not belong to the state boiler steam boiler regulation range, can be in the basement, a good solution to the conventional steam boiler no suitable location problems.
Gas-fired industrial automatic nature fired steam boiler has a positive effect on sustainable development: the increasingly tense in recent years as the price of coal and coal supply more of our day to rise, more and more companies turning to heating gas heating from the traditional gas heating, gas-fired steam boiler heating for its environmental protection, energy conservation in the country has been more widely used, in particular, focus on the most popular heating gas boiler room. From an economic analysis using gas steam boiler operation point of view, generally more than 5 years of small and medium sized gas steam boiler no longer have the value of the Burning gas. Many of our cities in a few years ago began to control the construction of small and medium sized gas steam boiler, the boiler was included within the scope of the demolition basically a longer useful life or the furnace has been out of the product. Be evaluated by the thermal efficiency of a steam boiler and to detect the remaining useful life, with the new gas boiler economic comparison can be seen, simply to change the method of gas fired boilers have undesirable manner by replacing the burner. Gas-fired steam boiler is the ideal replacement for gas steam boiler. Although the thermal efficiency of the fuel steam boiler was also higher, but the smoke pollution in the atmosphere is much larger than gas-fired boiler, steam boiler fuel and there are also issues related to oil transportation and storage, it lost the advantage of long-term development. Gas steam boiler and a steam boiler with gas as compared to the obvious advantages: Since the gas in the ash, sulfur and nitrogen-containing volume is lower than the content of the coal, the amount of dust generated in the flue gas after combustion minimal emissions the flue gas is easier to meet the standards required by the state of combustion equipment, the use of gas-fired boilers can greatly reduce the pollution of the environment. A high intensity gas furnace volume the hot steam boiler, due to the small smoke pollution, a strong convection tubes from corrosion and slagging, heat transfer effect, a large amount of combustion gas triatomic gas radiation, and low exhaust gas temperature, make thermal efficiency improved significantly. Aspect of saving the equipment investment boilers, gas steam boiler furnace may choose a higher thermal load, thereby reducing the volume of the furnace. Heating surface due to contamination, slagging, there is no problem of wear, can use a higher-speed cigarette, to reduce the size of the convection heating surface. Reasonable arrangement convection tubes, so that the capacity of the gas boiler with gas boiler more compact structure, small size, light weight, reduced investment in equipment significantly. Why is it so popular environmental protection boiler
Inter-regional Pingdingshan Coal Industry Group Co., Ltd. by the Pingdingshan Shenma Group and two Chinese top 500 enterprises founded by restructuring, cross-industry, cross-ownership and transnational business of large state-owned energy and chemical group, under the People's Government of Henan Province , is the most complete variety of coking coal, thermal coal production base, has Asia's largest chemical production base in nylon. Carefully selected and comparison, fast boiler Pingmei cooperation with party has chosen to provide a 2 tons of steam electric industrial automatic nature fired steam boiler (WDR2.0-1.25-II) by a fast side.