How energy-saving gas-fired boiler maker learnership is to be considered a problem in industrial production, especially to improve the thermal power to support industrial boilers for industrial production, energy but also reflects the level of technology boiler industry. With the successive implementation of the national energy saving policy, the traditional coal-fired industrial boilers gradually replaced by natural gas steam boilers, industrial thermal power field there was a revolution on energy saving. In addition to traditional industrial coal-fired boiler steam boilers to natural gas, the natural gas steam boiler was in operation can also take measures to save energy. Xiao Bian finishing the energy saving measures following natural gas steam boiler: 1, depending on the amount of steam needed for industrial production of reasonable choice and the number of rated power station natural gas boiler steam boiler, both of which match with the actual use of the higher exhaust smaller loss , significantly more energy. 2, the fuel in contact with air: fuel amount so that an appropriate amount of air and the optimum composition ratio of combustion, this would both improve fuel combustion efficiency and reducing emissions of polluting gases, energy to achieve the dual goals. 3, reducing the temperature of the exhaust gas steam boiler: the temperature of the boiler flue gas to reduce the effective use of exhaust heat generated in general, the efficiency of the boiler used is 85-88%, the exhaust gas temperature is 220-230 ℃. If the setting of energy-using the exhaust heat or the like, the exhaust gas temperature falls to 140-150 deg.] C, the boiler efficiency can be increased to 90-93%. 4, recycling heat boiler blowdown: by heat exchange using heat continuous blowdown water, in addition to the purpose of improving water temperature reaches itch water saving gas steam boiler. Meanwhile, natural gas steam boiler energy saving measures can also be reasonably recovered condensate heating system, and the heat of the condensate water recycling.
Common forms and functions of household gas boiler maker learnerships 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.
In the emphasis on strength condensing boiler maker learnerships run at the same time do not neglect the maintenance and inspection work. Regularly conduct a comprehensive inspection to the boiler, the boiler can not only ensure the smooth work, but also to avoid the impact due to the overall performance of the boiler minor issues.
Recently, the Weifang Municipal Quality Supervision Bureau investigation work for power plant boiler maker learnerships, boiler pipes mainly the situation, avoid boiler due to pipeline damage caused by explosion or other accident, serious economic losses and social impacts.
Quality Supervision Bureau adhere to problem-oriented, carefully study and strictly enforce the AQSIQ and the Provincial Quality Supervision Bureau of the requirements for the range of power plant boiler pipeline design, manufacture, installation, inspection, management and regular inspection of the use of accurate knowledge boiler safety awareness the importance of strengthening the red line awareness, risk awareness and responsibility to play, continue to maintain high pressure, strengthen safety supervision work of the power plant boiler tubes.
Bureau of Quality Supervision focus on checking whether the boiler tubes carry out regular inspections in the construction of power plant boiler accessories combination whether to implement supervisory inspection of manufacturing, installation work unit level meets standard requirements, flow meter housing if there is a security risk, whether the use of units developed power plant boiler tubes emergency plans and emergency rescue exercises, in a timely manner to improve the problems found.
To date, Weifang City inspectors were deployed 257 times, check the power station boiler unit 58, checking in with a number of boiler 193 units, eliminate safety hazards 78.