Are there solar water heaters that can be plugged in and used, i.e. dual-use?

There are dual-use solar water heaters.

The water tank of the solar water heater is designed with an installation position for auxiliary electric heating. After installing the electric heater, if the weather is bad and the water temperature in the water tank does not meet the requirements, you can use the auxiliary electric heater to quickly increase the water temperature.

There are two temperature sensors in the solar panel. When solar energy is insufficient, the first sensor 1 of the solar panel comes into play, allowing the primary and secondary coils of A to operate. When the water temperature cannot reach a certain level, when inductor 2 works, the primary and secondary coils BA work, switch 2 is closed, and under the joint action of switches 1 and 2, the The auxiliary electric heater switch is open and the heaterelectric is made to work.

The solar water heater is a heating device that converts solar energy into thermal energy, heating water from low temperature to high temperature to meet the use of hot water by people in life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat panel solar water heaters based on their structural shapes. Evacuated tube solar water heaters are mainly used, accounting for 95% of the domestic market share.

Home evacuated tube solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related parts. The conversion of solar energy into thermal energy mainly relies on vacuum tubes which use the principle that hot water is used. floats and cold water sinks, causing microcirculation of waterto obtain the required hot water.

Detailed information:

< p>Solar energy generally refers to the radiant energy of sunlight. Solar energy is a renewable energy source in a broad sense, solar energy is the source of many energies on earth, such as wind energy, biomass energy, tidal energy and water . potential energy, etc. wait. The basic methods of using solar energy can be divided into four categories: thermal light use, electric light use, chemical light use, and biological light use . Among the four types of solar energy utilization methods, light-to-heat conversion technology is the most mature, has the most products, and is relatively inexpensive.

Such as: solar water heaterres, water boilers, dryers, solar cookers, solar greenhouses, solar rooms, solar desalination devices and solar heating and cooling devices, etc. Solar thermal power generation has a higher solar energy conversion efficiency than photovoltaic power generation, but its application is not yet common. In photothermal conversion, the application of solar water heaters has the widest application range, the most advanced technology and the best economy.

Photothermal use: It collects energy from solar radiation and converts it into thermal energy by interaction with matter for use. Currently, the most commonly used solar energy harvesting devices include flat plate collectors, evacuated tube collectors and focused collectors. Solar energy production: Large-scale use of solar energyThe energy in the future will be used to produce electricity. There are two main ways to use solar energy to generate electricity:

1. Light-heat-electricity conversion. In other words, the thermal energy generated by solar radiation is used to produce electricity. Generally, solar collectors are used to convert absorbed thermal energy into working fluid. The steam then drives a turbine which drives a generator to produce electricity. The first process is light-to-heat conversion, and the second process is heat-to-electricity conversion.

2. Conversion of light into electricity. Its basic principle is to use the photovoltaic effect to directly convert solar radiation energy into electrical energy. Its basic device is a solar cell.

Photochemical use: This is a photochemical conversion method that usesenergy from solar radiation to directly split water to produce hydrogen.

Photobioutilization: The process of converting solar energy into biomass through plant photosynthesis. Mainly include fast-growing plants (such as firewood forests), oilseed crops and giant algae.

References:

Solar water heater_Baidu Encyclopedia < / p>

Solar power itself has auxiliary electric heating. There is no need to connect it to an electric water heater. This will consume more electricity. Do not fill the solar water tank in bad weather. is bad. If it's full, just add half. In this way, the auxiliary electric heating time in the solar water tank will quickly increase the water temperature. It is not profitable to use the heaterelectric water for too long. .

I had the same idea as you, to connect the solar water heater and the electric water heater, but in practice, this is not the case. There is no need to do this at all. is superfluous.

Attached is a connection diagram (the water pipe on the left leads to the solar upstairs, but it is recommended not to connect it like this. The electric water heater can be used without it):

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