1. Sample can be offered with sample charge and courier fee by buyer's side. 2. We have full stock,and can deliver within short time.Many styles for you to choose. 3. OEM and ODM order are accepted, Any kind of logo printing or design are available. 4. Good Quality+Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you. 5. All of our products are produced by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service. 6. We have rich experience of design, manufacture and sell solar water heater, we cherish every order from our honor.
After you choose
1. We will count cheapest shipping cost and make invoice to you at once. 2. Check quality again, then send out to you at 1-2 working day after your payment, 3. Email you the tracking no, and help to chase the parcels until it arrive you.
After-sale service
1. We are very glad that customer give us some suggestion for price and products. 2. If any question,please contact with us freely by E-mail or Telephone.
FAQ
1. Heat dissipation
Compared with ordinary photovoltaic panels, PVT panels have a lower power generation efficiency under the condition of not running water, which is about 3%-5% worse than ordinary power stations (the actual data still needs to be measured), because of the existence of insulation materials behind them. Heat dissipation in summer, water absorbs large amount of heat, so the temperature in the water tank can be appropriately lowered in summer nights, such as from 55℃ to 45℃, leaving 10℃ space for PVT panels heat dissipation.
2. There is a temperature difference between different outlets of each PVT panel, so at most 8-10 pieces are connected in series.
3. Water source heat pump
The hot water in the heat storage tank is heated by extracting the heat energy in the low temperature water in the circulating water tank.Working Principle: water source heat pump is the use of shallow water on the earth's surface, such as groundwater, rivers and lakes in the absorption of solar energy and geothermal energy and the formation of low grade heat energy resources, using the principle of heat pump, through a small amount of high electrical energy input, to achieve low heat to high heat.
Circulating Water Tank Water Source Heat Pump Heat Storage Tank
4. Different auxiliary cooling methods: 1. Water circulation 2. Add radiator 3. Adhesion and cooling gel
It depends on different conditions
5. PVT system can perfectly solve the heating problem in the north of China, which can be realized in the form of floor heating or radiator heating.
6. Antifreeze and the plate heat exchanger
Antifreeze: Antifreeze coolant, which means coolant with antifreeze function. Should be used all year round in cold areas. Plate heat exchanger: Plate heat exchanger is a kind of high efficiency heat exchanger which is composed of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, through which heat is exchanged. Plate heat exchanger is an ideal equipment for liquid - liquid, liquid - steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application, long service life and so on. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than the tubular heat exchanger, covers an area of one-third of the tubular heat exchanger, and the heat recovery can be up to more than 90%. The heat of the antifreeze is transferred to the plate heat exchanger.
7. After photovoltaic panels are processed, the quality of the PVT panels can still be guaranteed. Our processing does not change the structure of the photovoltaic panel, it will be vacuumed again to ensure its quality.
8. Red copper can be used as a heat absorber, but the freezing resistance of copper is not as good as stainless steel.
9. Example: a 450W PVT panel, with 4 hours of sunlight, can produce 1.8 kWh of electricity and 4.5 kWh of hot water. A panel costs 550 CNY more than an ordinary photovoltaic panel. But the income generated is 1600 yuan a year, the fastest four months to pay back the capital.
10. In scorching areas, only the water cycle system can be used to increase the efficiency of power generation by 10-20% a year.
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