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Anonymous users2024-01-23Can be used in tandem. Connect the solar hot water outlet to the water inlet of the water heater. This way, when using solar energy, all the water needs to go through the water heater first.
When the water temperature of the solar water tank can meet the demand, the hot water flows out through the water heater for direct use by the user, if the solar water temperature is low, you can turn on the electric water heater to heat it first and then use it.
Flat panel solar water heater is mainly composed of flat plate collector, water storage tank, water pipe, bracket and accessories. The flat plate collector is the key component of the flat plate water heater, and its thermal performance is an important indicator to measure the quality of the water heater.
It mainly includes four parts: a heat-absorbing plate coated with a selective absorption coating, a light-transmitting material cover, a thermal insulation layer and a shell. When sunlight shines through the cover glass on the plate absorber, most of the solar radiation energy is absorbed by the absorber, converted into heat energy, and transferred to the working fluid in the fluid path. The water in the storage tank is heated by natural circulation or forced circulation.
Compared with general flat panel solar water heaters, flat panel heat pipe solar water heaters have the following benefits:
The heat pipes of flat plate heat pipe solar water heaters are generally gravity thermosiphons. It has the characteristics of unidirectional heat conductivity, that is, the heat can only be directed from the evaporation section to the condensing section, but not from the condensation section to the evaporation section. In the northern region, when the outside temperature is lower than the temperature inside the tank at night, the heat will not be lost from the tank to the outside environment through the heat pipe;
The working fluid of the heat pipe can be made of antifreeze working fluid. In the cold areas of the north, it can avoid freezing and breaking the heat pipe due to the low temperature in winter nights;
Each heat pipe is an independent heat pipe element, and a single heat pipe can be replaced if it is twisted, and it has nothing to do with the system, so it is easy to install and maintain, and has a long service life.
The disadvantage of heat pipe flat panel solar water heater is that the price is higher, in order to improve the heat transfer efficiency, the heat pipe and the ribs are best to use non-ferrous metals such as copper and aluminum, which increases the manufacturing cost. If carbon steel is used as the material for heat pipes and ribs, the price may be similar to that of a general flat panel solar water heater.
Here's how to add it:
1. Determine the minimum air temperature for the local area, and on the basis of the minimum temperature, float down 5 10 and choose antifreeze. If the local minimum temperature is -15, choose the freezing point of antifreeze, which cannot be higher than -20, so as not to cause the antifreeze to become viscous and affect the use of extreme weather. >>>More
Hello, "Black Porcelain Old Man" reminds you: the wall-mounted solar medium is made of heat conduction fluid, the basic component is propylene glycol, which is similar to the performance of antifreeze (ethylene glycol) added by automobiles, but it is not corroded, and the freezing point is lower, and it will not have an adverse effect on the heat conduction copper tube and heat collector plate. However, because it is a split type, there is heat loss in the process of heat conduction and heat exchange, and its thermal efficiency is not high, if you use water every day, it can rarely reach 60 degrees.
It depends on whether yours is a natural cycle or a forced cycle, the natural cycle is recommended to be less than two meters, and the mandatory one can be longer, but the shorter the better.
The price of balcony wall-mounted solar energy is generally high, and the price of the brand is generally around 5000-8000 yuan. The collectors of wall-mounted solar energy do not go out of the tube (no pipe bursting, safe operation), and the operation mode of the water tank is under pressure, which is much higher than the cost of ordinary falling water solar energy. The selling price is also much higher.
The advantage of using copper coil is antifreeze, the copper coil is placed in the water tank and connected to the collector, and the antifreeze is installed inside, which is a double-circuit system.