If there is air in the solar water outlet pipe and less water is produced, the hot water and cold water can be connected together, and the pressure of the Tap water can be used to push the gas back into the water tank to flush it out.
If the water outlet pipe is inverted "U" shape, it is easy to cause air blockage, that is, the pipe cannot be arranged that all the way down and cannot be arranged. up and down. It's easy to be at the highest point of the pipe. Gas accumulates in certain places and cannot be evacuated. As a result, the water volume is low or no water comes out.
Solar water heater is a device that converts solar energy into thermal energy, heating water from low temperature to high temperature to meet people's use of hot water in life and production. Solar water heaters are divided into sub-tube solar water heatersvacuum and flat panel solar water heaters depending on their structural shapes. Evacuated tube solar water heaters are mainly used, accounting for 95% of the domestic market share. Household evacuated tube solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related parts. The conversion of solar energy into thermal energy mainly relies on vacuum heat collecting tubes which use the principle of hot water floating. and cold water flows to cause microcirculation in the water.
Why is it necessary to install an exhaust valve when installing a solar engineering pipeline?
There may be the following reasons: 1
The hot water valve is not opened (when the pressurized solar water heater is filled with water, the hot water faucet must be opened to release air into the tankdrain water until water flows out 2
The vacuum tube is broken and water has leaked out,
3
Hot water. the pipe is blocked
4 The water supply valve is faulty
As there is usually a certain amount of air dissolved in the water and the solubility of the The air decreases as the temperature increases, the gas gradually separates from the water during the circulation process, and gradually gathers together to form large bubbles. Even the air column, due to water replenishment, often generates gas. In the construction of Siji Muge project, one exhaust valve is usually installed for each. two sets of collectors to ensure efficient gas evacuation. If the project is relatively large, or if the collector is much higher than the water collection tank, then we will consider installing an overhead pipe for the exhaust
.