The two water tanks of solar water heater
Technical field
The utility model relates to the two water tanks of a kind of solar water heater, belongs to technical field of solar water heaters.
Background technology
Along with the development of modern social science technology, increasing people uses the equipment of the solar water heater of energy-conserving and environment-protective as the household water heating.Solar water heater mainly comprises the thermal-arrest plate of a water tank that is used for water storage and a heating cold water; There is the special coating of one deck on the thermal-arrest plate surface of solar water heater; This coating has very big absorptivity to the solar visible light scope, be absorbed as heat after, the heat radiation heat radiation wavelength of thermal-arrest plate is at long wave limit; This coating is very low to the emissivity of long wave, has so just effectively kept the heat of solar thermal energy.Cold water gets in the water tank of solar water heater through pipeline, passes through the thermal-arrest plate then, and the thermal-arrest plate is heated to be hot water gradually with cold water.Because the proportion of cold water is more great than the ratio of hot water, automatically toward rising, get back to again in the water tank of solar water heater after the cold water in the thermal-arrest plate is heated to be hot water, and water in water tank entering thermal-arrest plate heats, and has so just formed a circulation power.
People are in the daily use in overcast and rainy or winter the time; Because the solar energy on the thermal-arrest plate is not enough to water temperature in the water tank is heated to higher temperature; So the electrically heated mode of general use heats the water in the water tank; Because water tank volume is very big, causes heat time heating time very long, people's use is brought inconvenience.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned weak point, thereby provides a kind of solar water heater two water tanks, through to solar water heater two water tanks being installed; Electrical heating resistance is installed in the water tank of delivery port; Water temperature in water tank is crossed when hanging down, and heats the water in the water tank separately, thereby reaches purpose of energy saving; Simple in structure, energy-saving efficiency is high.
According to the technical scheme that the utility model provides, the two water tanks of solar water heater mainly comprise low temperature water tank, high-temperature water tank, water tank connecting pipe, water inlet pipe, outlet pipe and electrical heating resistance, and said low temperature water tank is connected through water tank connecting pipe with high-temperature water tank.
The height and position of the water tank connecting pipe water inlet in the said low temperature water tank is higher than the height and position of the water tank connecting pipe delivery port in the high-temperature water tank.
Said low temperature water tank lower end connects water inlet pipe, and the upper end connects blast pipe on first.Said high-temperature water tank lower end connects outlet pipe, and the upper end connects blast pipe on second.
Electrical heating resistance is installed in the said high-temperature water tank.
Compared with present technology the utility model has the following advantages:
The utility model is simple, compact and reasonable for structure; Energy-saving effect is high, and firing rate is fast, and is easy to use.
Description of drawings
Fig. 1 is the utility model structural representation.
Description of reference numerals: blast pipe on blast pipe, the 8-second on 1-low temperature water tank, 2-high-temperature water tank, 3-water tank connecting pipe, 4-water inlet pipe, 5-outlet pipe, 6-electrical heating resistance, the 7-first.
The specific embodiment
Following the utility model will combine the embodiment in the accompanying drawing to further describe:
As shown in Figure 1, the utility model mainly comprises low temperature water tank 1, high-temperature water tank 2, water tank connecting pipe 3, water inlet pipe 4, outlet pipe 5 and electrical heating resistance 6, and said low temperature water tank 1 is connected through water tank connecting pipe 3 with high-temperature water tank 2.
The height and position of water tank connecting pipe 3 water inlets in the said low temperature water tank 1 is higher than the height and position of water tank connecting pipe 3 delivery ports in the high-temperature water tank 2; In use; After 2 water level reduced gradually in the high-temperature water tank, the upper water in the low temperature water tank 1 got into high-temperature water tank 2 through water tank connecting pipe 3.
Said low temperature water tank 1 lower end connects water inlet pipe 4, and the upper end connects blast pipe 7 on first.Said high-temperature water tank 2 lower ends connect outlet pipe 5, and the upper end connects blast pipe 8 on second.On said first on the blast pipe 7 and second blast pipe 8 be used to discharge the steam that high temperature forms, prevent in the water tank that steam assembles and form high pressure.
Electrical heating resistance 6 is installed in the said high-temperature water tank 2, is used for heating through the water of Electric heating to high-temperature water tank 2.
In use, cold water gets into low temperature water tank 1 from water inlet pipe 4, gets into high-temperature water tank 2 through water tank connecting pipe 3 then; When solar energy is not enough; Electrical heating resistance 6 is heated, thus the water in the heating high-temperature water tank 2, the water in the shortest time in the heating high-temperature water tank 2.