With the improvement of people's living standards, users with swimming pools and underfloor heating in homes are becoming more and more common. Traditional heating generally uses boilers or electric heating. These facilities not only consume conventional energy, but also run expensive. Users want to use solar water heating systems instead of traditional heating methods.
Customers are in New Zealand who use floor heating systems from April to October and swimming pools from January to March.
The main part of this system consists of collectors, controllers, water tanks, heat exchangers, circulating pumps, expansion tanks, valve fittings and pipes.
There are many factors in the design of solar heating systems, coupled with the uneven seasonal distribution of sunlight (good summer sunshine, high water temperature, weak winter sunshine, low water temperature). This requires not only accurate calculation according to the specific conditions of the project, but also comprehensively determining the configuration of the solar heating system, especially the area of the solar collector, in combination with actual experience. The design area of the solar heat collector is too large, resulting in high investment costs and low effective utilization of solar energy. The design area of the solar heat collector is too small, the standby energy consumption is large, and the effect of energy saving and cost reduction is not obvious. The overall design principle is that it can meet 65-80% of the use, and use backup energy to supplement when the heat is insufficient.
The floor heating area of the customer's home is 260 square meters. After calculation, 4-5 sets of 30-tube collectors are needed. Since the customer's original heating system reaches 12kw, 6 collectors can reach 12kw. The size of the swimming pool is 12 * 4.5 * 1.8m. After calculation, six 30-tube collectors are required. So comprehensively, 6 collectors are the best choice.
The customer's existing water tank is 315L, but since it has been used for a long time and it is not clear whether there is a built-in coil, it is recommended that the customer replace a 300L double coil water tank.
Between November and March, when the tank temperature reaches 60 ° C. R4 automatically switches to a heated pool.
During April-October, when the temperature of the water tank reaches 60 ° C, R4 automatically switches to the underground heating floor.
If there is no sunlight, you can also use the hot water in the tank to heat the ground by turning on the R5.
The pool heating mode and floor heating mode can be switched by a manual three-way ball valve, which only needs to be rotated 90 degrees every year.
This is the best solution, every part can make the system reach the highest efficiency all year.
In the process, the customer has a question: Will his existing heating system conflict with our system, and will he modify the existing electrical and plumbing connections?
There is no need to worry about this problem. Our solar heating system is a completely independent system. There is no direct connection with the customer's existing heating system. The original heating system can be used as auxiliary heating energy for the solar system.
Solar heating is not only an energy consumption system, but also an energy production system. It has the characteristics of energy saving, cleanliness, environmental protection, and good comfort. It is a green heating method. With the improvement of people's requirements for the quality of life, solar heating systems will surely be used more and more widely.