Weapon professional buying guide
With the development of solar thermal technology, have become essential to our \"family members\", but about water heater to buy, a lot of people but it is ambiguous, what kind of water heater can be used with comfortable, safe, professionals to help answer your questions.
Advantages: solar energy, more environmentally friendly, energy saving, safe and economical.
Disadvantages: complex installation and maintenance problems. In addition, hail, high winds, cold weather, water heater vacuum tube solar collector tubes prone to cracking phenomenon. If there is no electric power Accessibility Accessibility is not doing enough or professional, rainy weather or winter may not work properly.
A wide range of solar water heater product categories, according to different classification criteria can be divided into the following categories. By can be divided into categories: vacuum tube and tablet.
Performance can be divided by the tank pressure: pressure and non-pressure type.
According to the structure and installation can be divided into: one and split.
According to operating mode can be divided into: natural circulation and forced circulation type style.
According to installation location can be divided into: rooftop and balcony style.
Key components
Solar water heater has three main components: water tank, stand, collector.
Tank: the tank is the heart of solar water heater parts, mainly by the shell, insulation layer, interior components, galvanized steel casing or spray usually selected steel materials that not only high strength, corrosion resistance is also good. Select more than 40mm insulation layer of polyurethane insulation materials, fine texture and a good polyurethane foam, foam pore size uniformity. Good water tank generally with a thickness of not less than 0.5mmSUS304-2B food grade stainless steel or enamel steel liner is made of durable anti-corrosion, high temperature, can keep the water clean.
Stand: as the bearer of the weight of the entire water heater parts, and its quality directly affects the service life of solar energy, solar stent on the market generally use galvanized steel or aluminum, in general, the main lever bracket fold thickness ≥ 1.5mm , the other not less than the thickness of the force rod 1.0mm. Collector: vacuum tube collectors in the choice of the film color should be chosen small, the vacuum tube should brand identity. Flat-plate collector should choose full copper core design of the selective absorption coating spray collector, flat collector surface should be high-strength low-iron wove glass, in order to ensure good light transmission and strength.