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                分享养殖7m足球比分即时比分去除水垢的最有利办法

                2019-09-02 16:31:53 7m即时足球比分 已读

                养殖7m足球比分即时比分运行一段时间后,会因为水质或者是水处理前期控制不好的原因形成一些水垢,有六种常见的类型,在这里小编就不一一细说了,水垢是对燃煤7m足球比分即时比分有百害无一利,是引起锅炉事故的罪魁祸首,它的危害性最要变现在三个方面:
                After a period of operation, some scales will be formed because of the poor water quality or the poor control of water treatment in the early stage. There are six common types. Here, we will not elaborate on them in detail. Scale is harmful to coal-fired hot blast stove, is the main cause of boiler accidents, and its harmfulness is the most important change. Now there are three aspects: 1、浪费大量燃料
                1. Waste a lot of fuel
                因卐为水垢的导热系数只有钢材的几十分之一,所以当受热面结垢后会使传热受阻,为了保持养殖水暖炉一定的出力,就必须提高火侧的温度,从而使向外辐射及排烟造成热损失。由于养鸡水暖炉的工作压力不同,水垢的类型及厚度不同,所浪费〖的燃料数量不同,根据试验和←计算,水垢的厚度和损耗燃料有如下比例:当水垢厚度≥1mm时,浪费燃料5—13%;≥2mm时,浪费燃料13—18%;≥3mm时,浪费燃料18—26%。
                Because the thermal conductivity of scale is only one-tenth of that of steel, heat transfer will be hindered when scaling on the heating surface. In order to maintain the output of the aquaculture water heater, it is necessary to raise the temperature of the fire side, so as to cause heat loss by outward radiation and smoke exhaust. Because the working pressure of chicken water heater is different, the type and thickness of scales are different, and the amount of fuel wasted is different. According to the experiment and calculation, the thickness of scales and the proportion of fuel wasted are as follows: when the thickness of scales is more than 1 mm, the fuel wasted is 5-13%; when the thickness of scales is more than 2 mm, the fuel wasted is 13-18%; when the thickness of scales is more than 3 mm, the fuel wasted is 18-26%. 。
                2、容易使钢板、管道因过热而被烧ぷ损
                2. Easily cause the steel plate and pipeline to be burned out due to overheating.
                因为养鸡7m足球比分即时比分结垢后,又要保持一定的工作压力及蒸发量,只有提高火侧的温度,但是水垢越厚,导热系数越低,火侧的温度就得越高。一般说来养殖7m足球比分即时比分火侧的温度在900℃左右,而水侧的温度在190℃左右。当没ㄨ有水垢时钢板的温度在230℃左右,一旦结垢1mm左右,钢板的温度比无垢时提高了140℃左右。20#钢板当温度达到315℃时,金属△的各项可塑性指标开始下降,当达到450℃时,金属会因过热而蠕动变形。所以养鸡水暖炉结垢是很容易使金属被烧损⊙的。
                Because after scaling in chicken-raising hot-blast stove, it is necessary to maintain a certain working pressure and evaporation, only to increase the temperature of the fire side, but the thicker the scale, the lower the thermal conductivity, the higher the temperature of the fire side. Generally speaking, the temperature of the fire side of the breeding hot stove is about 900 C, while the temperature of the water side is about 190 C. When there is no scale, the temperature of the steel plate is about 230 C. Once the scale is about 1 mm, the temperature of the steel plate is about 140 C higher than that of the scale-free steel plate. When the temperature of 20 # steel plate reaches 315 C, the plasticity index of the metal begins to decrease. When the temperature reaches 450 C, the metal will creep because of overheating. So the scaling of chicken heating stove is very easy to burn metal.
                3、增加检修费用和降低使用寿命
                3. Increase overhaul costs and reduce service life
                养殖锅炉因水垢而引起的事故大约是养鸡7m足球比分即时比分事故总数的三分之一,还是上升趋势,不但造成设备的损坏,也威胁到人身的安全。因此,在给水合格的情况下,养鸡7m足球比分即时比分运行时应严格控制锅内用水达到国家标准,并在运行中防止水垢的生成,而且结垢后,需及时进行处理,必须彻底防止及清除养鸡水暖炉炉内水垢№及控制水质。要解决以上▃问题,目前最科学的方法是在养鸡水暖炉运行加▲入综合性能好,功效全面的药剂运行保养及定期清洗除垢。
                Accidents caused by scales in farming boilers are about one-third of the total number of accidents in chicken-raising hot stoves or are on the rise, which not only cause damage to equipment, but also threaten personal safety. Therefore, in the case of qualified water supply, the water used in the boiler should be strictly controlled to meet the national standards when the chicken-raising hot-blast stove is running, and the scaling should be prevented in operation, and the scaling should be treated in time. The scaling in the chicken-raising hot-blast stove must be thoroughly prevented and removed and the water quality should be controlled. To solve the above problems, the most scientific method is to add a good comprehensive performance, comprehensive efficacy of pharmaceutical operation and maintenance and regular cleaning and descaling in the operation of chicken water heater.


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