Precautions for removing solar vacuum tubes are:
1. First of all, it is recommended that you choose a cloudy day, morning or evening, because you must first discharge all the hot water in the solar water heater before dismantling (so as not to be scalded by the hot water seepage when removing the pipe);
2. When disassembling, it is recommended to lubricate the vacuum tube with water soaked in detergent or washing powder. At the same time, pay attention to the Angle of the vacuum tube, and avoid stretching and pulling across the Angle to prevent the vacuum tube from breaking and hurting people.
3. After the vacuum tube is disassembled, it should be packed with special foam panels and put into special cartons to prevent bumps during transportation.
The solar vacuum tube is the core of the solar water heater, his structure is like an elongated warm bottle bladder, between the inner and outer layers for the vacuum, the surface of the inner glass tube is coated with a spectral selective absorption coating using a special process to absorb solar radiation to a greater extent.
Related concept
Vacuum tube
The electron tube is an early electric signal amplifying device. Enclosed in a glass container (usually a glass tube), the negative electron emission part, the control grid, the acceleration grid, and the positive (screen) leads are welded to the tube base. The electronic modulation signal is injected into the control grid in vacuum by electric field, and the signal data of different parameters are obtained after amplifying the signal or feedback oscillation. In recent years, it has been gradually replaced by amplifiers and integrated circuits made of semiconductor materials, but at present, in some high-fidelity audio equipment, low noise and high stability factor vacuum tubes are still used as audio power amplifiers (Hong Kong people say that the use of vacuum tube power amplifiers is "courage machine").
Water heater
Water heater refers to a device that increases the temperature of cold water into hot water in a certain period of time through various physical principles. According to different principles can be divided into electric water heater, gas water heater, solar water heater, magnetic energy water heater, air energy water heater, heating water heater and so on. Make the cold part and make the hot part. In fact, these two parts are closely linked, inseparable, and must work simultaneously. That makes hot water while cooling the kitchen. Or to cool the kitchen while making hot water.
Solar energy
solar energy refers to the sun's thermal radiation energy (see the three ways of heat propagation: radiation), the main performance is often said that the sun's rays. In modern times, it is commonly used to generate electricity or provide energy for water heaters. Since the birth of life on the earth, it has mainly survived by the thermal radiation provided by the sun, and since ancient times, humans have also learned to dry objects in the sun, and as a method of making food, such as making salt and drying salted fish. In the case of decreasing fossil fuels, solar energy has become an important part of human energy use, and continue to develop. Solar energy can be used in two ways: photothermal conversion and photoelectric conversion. Solar power generation is a new renewable energy. Solar energy in a broad sense also includes wind energy, chemical energy, and water energy on Earth.