热泵热水器蓄热水箱分层蓄热技术试验研究

Experimental Research on Layered Thermal Storage Technology of Heat Pump Water Heater Storage Tank

现有热泵热水器基本采用小温升循环加热方式对蓄热水箱的水进行加热,这种加热方式的弊端是需要将整箱水加热到设定温度后才可使用。若热水不足则需要重新利用热泵将整箱水的温度提高到设定值,不仅加热时间长,而且消耗的电能多,更严重地是剩余的热水会产生一定的不良影响。针对上述问题,首先通过对蓄热水箱分层蓄热技术试验研究,然后提出热泵小温升和大温升相结合的分区循环加热方式,最后通过试验数据分析验证了该加热方式能够很好解决现有热泵热水器以上不足,使用户获得更好的体验感。

The existing heat pump water heater basically uses a small temperature rise cycle heating method to heat the water in the storage water tank, the disadvantage is that the heat of the whole tank needs to be heated to the set temperature before being used. For the lack of hot water, we have to raise the temperature of the water tank to the set value through heat pump again, not only heating a long time, but also consuming more energy, more seriously, the remaining hot water will have a certain adverse effect. In order to solve the above problems, the first step is to study the stratified heat storage technology of the water tank, and then put forward the district cycle heating method combining the small temperature rise and the large temperature rise of the heat pump, finally the experimental data analysis shows that the heating method can well solve the above problems of the existing heat pump water heaters,enabling the user to obtain a better sense of experience.