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你知道水垢对热水器有什么危害吗?
水垢对热水器的危害
Damage of Scale to Water Heater
1、下降热功率。因为水垢比金属的导热系数小几百倍。因而,即便在受热面上构成不太厚的水垢,也会因为热阻大,使其导热功率下降,构成热丢掉。受热面上结有水垢,会使金属管壁部分过热,当壁温超越其作业答应极限温度时,就会使其部分鼓包,这种现象多发生在电加热管上,也是致使电加热管损坏的首要原因之一。
1. Decrease the thermal power. Because the thermal conductivity of scale is several hundred times smaller than that of metal. Therefore, even if the scales on the heating surface are not too thick, the thermal resistance will decrease its thermal conductivity power and form heat loss. The scaling on the heating surface will overheat the metal tube wall. When the wall temperature exceeds the operating allowable limit temperature, it will make part of it bulge. This phenomenon mostly occurs on the electric heating tube, which is also one of the primary reasons for the damage of the electric heating tube.
2、下降循环量。太阳能真空管内结垢后,流通截面积削减,添加了水循环的速度和活动阻力致使升温效果明显下降。
2. Decrease circulation. After scaling in the solar vacuum tube, the flow cross-section area is reduced, and the speed of water circulation and the moving resistance are added, resulting in a significant decrease in the heating effect.
3、下降运用寿数。水垢附在太阳能真空管内,很难根除。为了除垢需求常常清洗,因而添加检修次数,费时费料费财。而且或许因为除垢方法不当而下降运用寿数。
3. Decrease the service life. Scale is attached to the solar vacuum tube, which is difficult to eradicate. In order to remove dirt, cleaning is often needed, so the number of times of maintenance is added, which is time-consuming, material-consuming and money-consuming. And perhaps because of improper scale removal methods and reduce the use of life.
4、腐蚀金属内壁。水垢是一种凌乱的盐类,其间含有卤素离子,在高温下对铁有腐蚀效果。经过对铁质水垢的分析,可知它含铁量达20%~30%左右。水垢的腐蚀会使金属内壁变脆并不断向深处腐蚀。
4. Corrosion of metal inner wall. Scale is a kind of messy salt, which contains halogen ions and corrodes iron at high temperature. Through the analysis of iron scale, it can be seen that its iron content is about 20%-30%. The corrosion of scale will make the inner wall of metal brittle and corrode continuously to the depth.
5、使传感器失效。水垢的导热系数低,一旦结垢,传感器内部的感温元件不能及时感应到外部水温的改动,使得闪现的温度比实践水温要低。
5. Failure of the sensor. The thermal conductivity of scales is low. Once scaling occurs, the temperature sensor inside the sensor can not sense the change of external water temperature in time, which makes the flashing temperature lower than the actual water temperature.
因为水垢的特性,使得水位闪现呈现误差。这个进程一般有两种现象:一种是结垢初期水垢稀松似海绵状,这时的水垢能吸收水份,即便水箱内只需少数水也会因为毛吸现象而闪现满水位;另一种是结垢后期水垢巩固、细密,因为水垢阻止了电信号的传送,太阳能水箱内就是注满水也会闪现缺水或无水。
Because of the characteristics of scale, water level flashover presents errors. There are two kinds of phenomena in this process: one is that the scale is loose and spongy in the initial stage of scaling, when the scale can absorb water, even if only a small amount of water in the tank will flash full water because of the phenomenon of gross absorption; the other is that the scale consolidates and is fine in the later stage of scaling, because the scale prevents the transmission of electrical signals, and the solar water tank. Inside is filling water will also flash water shortage or no water.
相信大家看了以上信息对济南力诺瑞特太阳能热水器也有了一定的了解了,如果你想了解更多的这方面的信息请点击我们的网站吧:http://www.jnlinuoruite.com
Believe that you have read the above information on solar water heaters have a certain understanding, if you want to know more about this information, please click on our website: http://www.jnlinuoruite.com!
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