Theoretical explanation: Integrated pressurized solar heater called the phase-change thermal
conductivity full- pressure solar water heater, which uses phase-change thermal
conductivity type collector tube is flat, phase change heat pipe and heat formed
aluminum wings. The sun , the heat selective absorbing coating the collected via
heat transfer to the aluminum wing phase change heat pipes, phase change heat
transfer working fluid within the heat pipe, using phase change heat transfer
water tank water to complete heat. Integrated pressurized solar geyser pressure
state (size and pressure within the local network consistent water pressure)
under top water use that rely on the hot water tank Shui pressure ejection. When
used, should ensure that water valve normally open, and not without water. Due
to the flat water, it does not appear minor damage, the possibility of water out
of the FCL.
Compare the advantages and disadvantages: Non-pressurized solar water heater
called the line of all-glass heat collector solar water heater, vacuum tube
and between its tanks relies on sealing gasket seal; it cannot withstand the
pressure. Non-pressurized solar water heater in the state without pressure drop
of water use, that gap will depend on the release of water inside the tank. The
main lines of the lower part of the tank inlet / outlet and overflow pipes: the
water tank is full , the overflow pipe overflow alarm, turn off water valve;
When used, the water fall under gravity to rely on the inlet / outlet pipe
outflow In this case the role of qi from the overflow pipe. Due to the
non-pressure water heater vacuum tube, so if I just damaged, the water inside
the tank will all flow out.
solar water
heater drawback is: Due to the lower water temperature in the winter solar
generally reach four, fifty degrees, the temperature of the bath also about
forty-five degrees, the principle is the pressure of hot water and then with
cold water top (just like the water heater usage, If the water heater
temperature burn about 45 degrees, it is basically no water cannot wash a few
minutes). Because the cold and hot water in the tank to mix and heat exchange,
resulting in lower utilization of hot water. Common horizontal tank mixing with
water is more serious; in order to meet the water needs to be enabled to
continue heating electric heating. Vertical tanks are a better solution to this
problem.
Non-pressure (drop type) disadvantages: Water by drop, if the distance
between the roof and the water points less than 7 meters, then the water
pressure is not. There are restrictions on water at the time. It simply is, is a
closed pressurized tank, water tank liner is thick, can be placed anywhere in
the home, such as for example the bathroom or living room, by the water pressure
of the water, the advantage of avoiding hot and cold water bath, the whole
system similar to the solar
tube; non-pressure tank is open at the top of the tank has vents, water
gravity drainage, water needs to be placed on the roof.
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