There is always no water in the room, because the water pipe is broken and it is easy to tell. If you have a chance to go to the roof, if you see that the vacuum tube is not leaking and the color is white, it also means that the tube is broken and needs to be replaced.
Methods of heat exchange tubes for solar water heaters;
Find detergent and water one by one; Then draw a circle on the silicone ring near the lower end of the water tank of the water heater with a brush, then put on gloves and hold the lower part of the pipeline with your hands, and push it up hard while rotating. After the lower vacuum tube comes out, take it out of the lower bracket and pull it down while rotating. Then take off the silicone ring and check it. If there is no problem, install the silicone ring first, then apply cleaner to the new vacuum tube, rotate it gently and put it back in place.
Extended data:
Solar vacuum tube:
The vacuum tube of solar water heater is the core component of solar water heater, which is known as the "heart" of solar water heater. The quality of vacuum tube directly affects the service life and performance of solar water heater. The rapid development of solar energy industry has also driven the development of vacuum tube enterprises. On the one hand, the patented technology of vacuum tube is constantly innovating, on the other hand, the number of vacuum tube enterprises and production lines has been increasing in recent years.
Vacuum tube is the core of solar water heater. Its structure is like an elongated thermos container, and there is a vacuum between the inner and outer layers. The surface of the inner glass tube is coated with a spectrum selective absorption coating through a special process to absorb solar radiation energy to the maximum extent. After sunlight, photons hit the coating, and solar energy is converted into heat energy. Water absorbs heat from the outside of the coating, and the water temperature increases and the density decreases. Hot water moves upward, but the specific gravity of cold water decreases.
Hot water is always located in the upper part, that is, in the water tank. The hot water temperature rise of solar water heater has little to do with the outside temperature, but mainly depends on the illumination. When you turn on any faucet in the kitchen or bathroom, the hot water in the water heater will naturally drip out. The greater the drop, the higher the water pressure.
At present, the domestic enterprises producing tube blanks mainly include Linuo, Sheng Yuan, Yao Hui and other enterprises. The enterprises that produce vacuum tubes mainly include Linuo New Materials, Baoguang collector tubes and other enterprises. There are two main types, one is that water does not flow in the pipe, and the other is that water flows in the pipe. Traditional vacuum tubes all flow in the tube. The introduction of double vacuum and the introduction of "in-line heat pipe" vacuum tube make water not flow in the glass tube.
As the heart of solar water heater, vacuum tube will change with the change of environment. Due to the differences in regions, target consumer groups and buildings, solar water heaters should be adapted to local conditions and time, and effectively combined with buildings.
References:
Baidu Encyclopedia: Solar Vacuum Tube