100 degree solar hot water uses aluminum and plastic pipes. The long-term use temperature is 95 degrees, 50 years, IMPa, the maximum use temperature is 110 degrees, and the thermal expansion coefficient of the aluminum-plastic pipe is small. Its thermal expansion coefficient is equivalent to that of aluminum and only one-sixth that of all-plastic pipes. When subjected to temperature changes, the amount of deformation is small and the aluminum-plastic pipe is a flexible coil. The pipe itself can absorb a certain amount of deformation and will not cause thermal expansion or deformation of the piping system.
Aluminum plastic pipe, light weight, good heat resistance, corrosion resistance, low thermal conductivity, small pipe resistance, strong pipe connection, hygienic and non-toxic.
Uses of aluminum-plastic composite pipes
In hot and cold water piping systems, aluminum-plastic composite pipes are smooth inside, do not corrode, do not form scale and have a greater flow rate than 30/30 metal pipes.
It is easy to fold, can be installed directly on beams and columns and can be buried in walls and concrete. A simple metal detector can detect the installation location, which makes the pipe very suitable for industrial and industrial applications. Used in hot and cold water piping systems of civil buildings. With good hot melt performance, the hot melt connection connects pipes and fittings of the same material into a perfect whole, eliminating the risk of water leakage.
Aluminum-plastic pipes do not pollute the environment during use and are matgreen building materials.
1. From the heat collection part:
1. Glass vacuum tube solar water heater,
Glass vacuum tube solar water heater uses solar energy The energy utilization method of mainly using the Electric energy as supplement allows the solar water heater to work normally all year round, and the efficiency is still relatively high when the ambient temperature is low.
2. Flat Plate Solar Water Heater
The flat plate solar water heater is easy to integrate into the building and its thermal performance is also very stable. However, because there is no vacuum inside the cover and the thermal insulation performance is poor, the heat collection performance is poor when the ambient temperature is low and consumes relatively much power when of the use of an ap heatingpoint. Thermal efficiency is lower when the ambient temperature is low or when the leaving water temperature must be high.
2. Classification based on structure:
1. Compact solar water heater,
The compact solar water heater inserts the vacuum glass tube directly into the water tank. and uses Circulating heated water raises the temperature of the water in the water tank. It is the most classic solar water heater on the market.
2. Split type water heater,
The split type water heater separates the collector and the water tank, which can greatly increase the capacity of the solar water heater. use the falling water working method and expand the scope of use.
Detailed information:
Solar water heater purchasing tips:
1. Look at the quality of the vacuum tube.
The vacuum tube is an elementment of the water heater when purchasing, you should carefully observe the coating of the glass tube inside the vacuum tube. Its color is usually black, dark blue or dark gray. Good quality coatings are uniform in color and have no scratches or peeling, there are no stones on the glass, and the backings are placed correctly and do not come off .
2. Look at the insulation layer and the covering.
The processing technology has a layer of insulating material between the outer shell and the tank liner of the solar water heater, which plays an important role. very critical role in hot water insulation. Function, the service life of polyurethane insulation materials can reach more than 10 years. The inner tank is where the hot water is stored and its thickness is approximately 0.5mm.
3. Select the water tank capacity.
LHousehold bathing water is low If household water consumption includes cooking, total water consumption can be estimated based on water per capita. consumption of 40 L; domestic solar water heater water temperature in winter Usually calculated based on 50 to 60 degrees, the water capacity of the water heater is converted. The actual purchasing decision depends on the condition of the water heater.
Baidu Encyclopedia - Solar water heater