Why is it difficult to promote solar water heater pipeline emptying
However, as well as in the actual use of the process is not our imagination, its main shortcomings: one is easy to break, because the valve installed in the outdoor, whether external or built-in, no matter is still under the valve itself is very easy to freeze frozen (winter solar water tank will often freeze), even without freezing bad, if this operating system will do some installation of valves, electrical insulation still can not solve the problem; two infiltration or Water Leakage not open, because the valve after the water temperature difference is too big, very easy to cause the valve tightly open or damaged, loose and infiltration Water Leakage will freeze pipe plug, three is easy to wear because every time, must open and close the valve, the use of high frequency, in order to increase the wear resistance, some valves used in ceramic grinding, but because of the above reasons and easily broken valve
But so many patent technology, such a good effect, such a large market demand, more than a decade, why has not a climate? It includes customers, distributors and manufacturers mention drain away? Based on the analysis of the stability and practicability of the current evacuation system. According to the current open patent technology, the general form of the main emptying valve type, siphon and top water. The valve is in the solar water heater with an electric water valve pipe, artificial control valve open close through the electric switch, open the valve can close the valve on the water, cut off the pipeline and water (tank) connectivity, and then to open the hot water inlet pipe, the water outflow pipe pipe switch in gravity under the effect of pipeline emptying is vacant. When the water, open the valve, and then turn on the hot water switch, the pipe was empty, so the flow of hot water (that is, open a hot water). In addition, due to the pipeline does not have water, so the weather will not freeze cold blocking for the normal use of solar water heaters in winter conditions
Emptying of solar water heater pipe from 99 years of individual manufacturers began to promote, it effectively solves the pipeline of cold water, winter freezing pipe can not be used, because the underlying user pipeline and a waste of cold and hot water and cold because of bad fitting problems, to make up for the solar water heater using the missing items, eliminate consumer concerns, once caused a stir in the market, but also to other manufacturers feel the crisis. However, due to the solar water heater the special environment, and our climate difference is big, the evacuation system launch time is not long, the system limitations, missing items appear, unexpected problems, leading to promotion blocked. In the face of pipeline emptying has great potential advantages and opportunities within the industry and the community of enthusiasts under this inspiration, continuous innovation, emptying a single so far has obtained national patent application 189
