Frozen prevention idea of solar water heater
I think that it is cheap and it is also more that the effect is greatly used of the solar water heater of the nature circulation type that there is a hot water of tank on the roof. This type freezes on a cold day of winter and the hot water doesn't descend. Therefore, not using it in winter either might come.
Production method of preventing motive and freezing
I had inconvenient time because the hot water was not able to be used when the solar water heater froze because the solar water heater and the oil boiler were connected directly and used by it.
It seemed to be in the vicinity of the exit of the hot water of the solar water heater to be frozen, and it was not effective though the polyethylene pipe to the solar water heater (hose) had been kept warm.
There was no effect that this is enough though the frozen prevention heater was turned on to the vicinity of the exit of the hot water of the solar water heater. It is extent where the hot water's coming out becomes early a little.
It came to go well when the hot water was made to come out a little during the night with the timer and the magnetic valve because the thing that did not freeze had been understood when the faucet of the hot water was opened a little on a cold night of winter, and the hot water was put out little by little. However, there was often a freezing thing when the amount of the hot water put out was a little.
It has solved it putting up the faucet with an automatic antifreeze coma to the solar water heater.
The solar water heater came not to freeze when the faucet that put an automatic antifreeze coma was used. The installation place is a near outdoor part that went down the roof of the pipe in the hot water of the solar water heater to the ground. Please refer to the photograph for how etc. to install it.
The amount of the water that comes out at night is about one small cup in the bucket on a cold day of winter around here in Okayama. More water will be thrown away in the of course cold provinces.
The condition is very good, and it is never frozen though the idea of this freeze proofing is adopted in the house in the country and the shop in Okayama since 2000. The entire system of supplying hot water is prevented being frozen if it uses it well. It is thought that this is a hit idea after a long time.
Situation of installation of faucet with automatic antifreeze coma
This is an example of putting the solar water heater on the field in the back.
The faucet with an automatic antifreeze coma was installed from the ground in the field below to the piping of the hot water of about 50cm. (It is not thought that it is easy to see it in this photograph. )
The construction of an underground laying underground of an insulated copper pipe is done and it is laid here to home ahead by about 10m.
Example of putting up faucet with automatic antifreeze coma to place where solar water heater was descended
It is a macro photography of the installation part of the faucet with an automatic antifreeze coma.
To expose it to doing that avoided the influence of the heat of the hot water and the outside temperature, it separated from the copper pipe a little in the flexible tube. I think that I need not separate here. It might be good yet without the flexible tube. The scene and the cock of a usual faucet are changed for an automatic antifreeze coma.
Because the heat insulator is deteriorated because of longtime sunlight and wind and rain, it protects it by the piping cover of the air conditioner.
Example of putting up faucet with automatic antifreeze coma to entrance of oil boiler
It is an example of putting up the faucet with an automatic antifreeze coma to the entrance of the oil boiler of the place where the hot water from the solar water heater descended. It extends similarly in the flexible tube, and it leads to the outlet with the hose. This hose is a useless article of the water supply hose of the washing machine.
Please install it on the position in which the waste energy of the oil boiler doesn't influence it.
Automatic antifreeze coma and the operation principle
The use in normal circumstances is quite the same as a usual faucet.
The thermoelement perceives the temperature when the ambient temperature falls with still water, the piston of an automatic antifreeze coma shrinks, the valve connected with the thermoelement with the spring is pushed up, and open valve.
The piston expands when water is exhausted and the temperature of the flowing water rises, the valve is pressed by the spring, and close valve.
Specification of automatic antifreeze coma
Details and specification of automatic antifreeze coma that I used
- 15℃-operating temperature limit -80℃
- Open valve temperature 1.7.7℃
- Close valve temperature 4.5℃ or less
- Range of use pressure 0.04-1.1MPa
- Amount of operation current of the times More than 450mL/min(atmosphere temperature 0℃ and fluid temperature 0℃ and water supply pressure 0.05MPa)