A solar water heater is a water heater that absorbs heat and light energy from the sun during the day to heat domestic water. When there is enough sunshine, this water heater can get hot water at a relatively high temperature without problem. connect. It is very energy efficient and environmentally friendly. Solar energy is divided into water pipes and return pipes, which can ensure that there is enough hot water in solar energy to be used. However, sometimes the pipes get old or the temperature is too high, and they are prone to breakage or breakage. . So how to fix it at this time?
1. How to Fix a Broken Outdoor Solar Water Pipe 1. Replace the PipeReplacing the pipe is the most direct method and the entire pipe is replaced. Or saw off the broken part, replace it with a new section of pipe and connect it with a joint.
2. Direct connectionCarefully cut the broken parts, do some processing and connect them with a connection tool. Nuts, slotted sleeves and rubber sleeves can be used. Be flexible in specific operations and pay attention to the meaning of each piece.
3. Thermal weldingAnother method is thermal fusion, which reconnects broken edges by thermal fusion.
2. Can water still be supplied if the solar water pipe is broken?If the solar water pipe vacuum tube is broken, it can be divided into two types of damage. First, if the simple middle layer is broken, water will not drain. This has little impact on overall solar energy use. It's just that the branch pipes do not collect heat, but this does not affect the water supply and return. The other is a burst water pipe, which will cause a water leak.water. The water supply may be normal, but all the water is draining. But in order to ensure normal use, it is best to replace the tube with a new one.
3. What material is the water pipe of the solar water heater made of?Considering that solar water pipes must be anti-freeze, that is, under normal circumstances, there are only three types of pipes. on the market: real cross-linked PEX pipes, PERT pipes and PB pipes. PEX pipes have good frost resistance, but they are easily oxidized and brittle when exposed to sunlight, so the external insulation of the pipes must be good and cannot be cracked by the sun. If used, it is recommended not to choose a price lower than 140 yuan. Pert tubes have better frost resistance than PEX, but their cost is relatively high, so there are few solar panels on the market. The PB pipe must be considered as thebest antifreeze hose on the market. Nowadays, many high-end underfloor heating projects use it. Of course, its cost is high and it cannot be promoted in the solar power industry.
4. Working principle of solar water heater
Solar water heater is a device that uses the energy of the sun to heat water from low temperature to high temperature . product. The solar water heater consists of an all-glass vacuum collector tube, a water storage tank, a bracket and related accessories. The conversion of solar energy into thermal energy mainly relies on glass evacuated collector tubes. The temperature of the collecting tube is high when exposed to sunlight, and the temperature at the back of the collecting tube is low, causing a temperature difference reaction in the water in the tube. Using the principle of hot water floating up and eaAs cold water descends, the water generates microcirculation to reach the required hot water.