1. Solar vacuum tubes used in household solar water heaters are divided into 37, 47, 58, 70mm, etc. according to the diameter, and are divided into 1.2, 1.5, 1.6, 1.8, 2.1, 2.3m, etc. depending on length.
2. According to the production process, it is divided into: solar ordinary black tube, three-height ordinary blue tube, three-height purple gold tube.
How to identify the quality of vacuum tubes
First, touch it with your hands. If the temperature is normal and slightly cold, it means that the vacuum tube is of high quality. it is hot, it means the quality of the vacuum tube is not good. Well, it absorbs heat and dissipates it at the same time, so the effect of using it in winter will be relatively poor;
Second, observe with your eyes. When purchasing, you should carefully observe the coating on the glass tube inside the vacuum tube. Lower solar energy The vacuum tube utilized only has 9 layers of coating, and the good ones have 12 layers of good quality. is uniform in color and appears black. The film layer has no scratches, peeling or peeling, and there are no stones on the glass. The support The support parts of the inner glass tube are correctly placed and are not loose.
Third, pay attention to the diameter and length of the vacuum tube, which directly determine the size of the heating surface of the vacuum tube and the tube spacing between the vacuum tubes. Generally, the center distance between the two. The tubes measure approximately 75mm.
It is best to choose black solar, porcelain and old ceramics. It does not have the problem of air attenuation of the heat-absorbing coating of traditional glass tubes, and it can also be integrated into the building as a building element.
Are there 55mm solar vacuum tubes?
How to replace solar water heater vacuum tubes:
1. Find some dish soap and mix. with water one by one;
p>2. Then use a paintbrush to apply a circle to the silicone ring at the bottom end of the water heater tank (i.e. the rubber ring of the suction hose).
3. Next, put on gloves and hold the lower part of the pipe with your hands. Rotate and push hard. Once the lower vacuum tube is out, lift the lower bracket and then rotate it. pull it down;
4. Then remove the silicone ring and check it. If everything is OK, first remove the silicone ring, apply dishwashing liquid to the new vacuum tube, gently rotate it and. reinstall it in its original position. ?
Use of solar energy
Solar energy generally refers to the radiant energy of sunlight. Solar energy is ae source of renewable energy.
There are many energy sources on different brands of solar water heaters, such as wind energy, biomass energy, tidal energy, water potential energy. water, etc. The basic methods of using solar energy can be divided into four categories: thermal light use, electric light use, chemical light use, and biological light use . Among the four types of solar energy utilization methods, light-to-heat conversion technology is the most mature, has the most products, and is relatively inexpensive. Such as: solar water heaters, water boilers, dryers, solar cookers, solar greenhouses, solar rooms, solar desalination devices and solar heating and cooling devices, etc. Solar thermal energy production has a conversion efficiencysolar energy production is higher than photovoltaic energy production, but its application is not yet common. In photothermal conversion, the one that currently has the widest application range, the most mature technology and the best economy is Solar water heater applications.
Photothermal use: It collects energy from solar radiation and converts it into thermal energy by interaction with matter for use. Currently, the most commonly used solar energy harvesting devices include flat plate collectors, evacuated tube collectors and focused collectors. Solar Power Generation: Large-scale use of solar power in the future will be used to generate electricity. There are two main ways to use solar energy to generate electricity:
1. Light-heat-electricity conversion. In other words, the eneThermal energy generated by solar radiation is used to produce electricity. Generally, a solar collector is used to convert the absorbed thermal energy into steam as the working fluid, and then the steam drives a turbine to drive a generator to produce electricity. The first process is light-to-heat conversion, and the second process is heat-to-electricity conversion.
2. Conversion of light into electricity. Its basic principle is to use the photovoltaic effect to directly convert solar radiation energy into electrical energy. Its basic device is a solar cell.
Photochemical use: This is a photochemical conversion method that uses energy from solar radiation to directly split water to produce hydrogen.
Photobioutilization: The process of converting solar energy into biomass through plant photosynthesis. Includednt mainly fast-growing plants (such as firewood forests), oil crops and giant algae.
Baidu Encyclopedia: Solar Water Heater
The solar vacuum tube burst due to freezing. Can I buy a vacuum tube and install it myself? What is the specific installation method?
There are 55 solar vacuum tubes. There are 55mm diameter solar vacuum tubes on the market, usually used in solar water heaters or solar air conditioning systems. This type of vacuum tube is generally made of two layers of glass tubes, with a vacuum layer or heat pipe with an adsorbent in the middle to improve its thermal insulation performance and heat transfer efficiency.
Of course you can
Nowadays, there are usually four to seven tubes and five to eight tubes. The lengths are also not necessarily the same.
He is rRecommended to measure the size yourself or bring the broken pipe when purchasing.
There is nothing special about the installation, you just need to push the pipe into the water tank. first, then remove the bottom pipe holder (or twist the tube out of the tube holder)
Then remove it. Do not throw away the top silicone ring, store it.
When installing, be careful not to place the silicone ring crooked. If the new pipe is difficult to block, you can soak it in a little soap. water.
The method is the reverse process of disassembly, which is very simple.