If the temperature difference is large, it will burst. Don't get cold water when the sun is full, usually after 9:00 at night or in the morning.
According to reports, broken vacuum tubes will not only cause leakage of solar water heaters, but may also damage other tubes around. In addition, the vacuum tube is a key component of solar energy. Once broken, it is very expensive and troublesome to repair. Therefore, there is a problem of vacuum tube breakage in solar energy, and how to maintain it becomes a headache for users.
The first is the length of the solar vacuum tube. The length of the vacuum tube can directly measure the tube without breaking. The method is as follows, from the bottom of the vacuum tube to the heat preservation barrel, plus 8-10 cm. This length is the total length of the tube you need to buy in the store.
The second is the diameter of the solar vacuum tube. The diameter of the pipe can't be wrong. If it's too big, it can't be installed. If it's too small, it will leak. Regarding the diameter, you can measure the bad pipe or the remaining pipe on the water heater. Measure the diameter and buy a pipe of the same thickness.
The absorption ratio of Three high purple gold tube is improved by 12% compared with ordinary vacuum tubes, and the emission ratio is reduced by 30% to 40%. It has superabsorption, less heat loss and rapid temperature rise. Triple high purple tube, super absorption, high thermal efficiency, rapid heating, under the same light premise, can produce more hot water with higher water temperature than ordinary tube; high cold tube, because the emission of copper ions is lower than aluminum ion 0. 2. Therefore, there is very little heat loss, and it can still work normally in a cold environment.
The absorption ratio of the three-high purple gold tube is improved by 12% compared with the ordinary vacuum tube, and the emission ratio is reduced by 30% to 40%. It has superabsorption, less heat loss, and rapid temperature rise. Three high purple gold tubes, super absorption, high thermal efficiency, rapid heating, under the same light premise, can produce more hot water with higher water temperature than ordinary tubes
The vacuum tube we are talking about here refers to the all-glass vacuum solar collector tube. At present, vacuum tubes are mainly used for solar water heaters. The vacuum tube is the source of energy for the hot water produced by the solar water heater and the core technology of the solar water heater. It is like the human heart.
Today, many families are using solar water heaters, because of the advantages of energy saving and environmental protection, they are sought after by consumers in the market. But for consumers who have not bought it, they must know some common sense of solar water heaters before buying, in order to choose the product that best suits their needs
It is necessary for us to fully understand the quality control standards of the vacuum tube production process:
There are many reasons for the failure of a vacuum tube, and basically it will cause the explosion of the vacuum tube. So will a qualified vacuum tube be so easy to blow? In fact, the vacuum tubes currently on the market are basically qualified as long as they are from regular manufacturers, but the problem of explosion tubes still occurs from time to time. Since there is no problem with the quality of the vacuum tubes, why do they still explode?
?Solar Vacuum Tube, April 14, according to foreign media reports, a new study published by the National Renewable Energy Laboratory (NREL) in "Natural Energy" shows that scientists have created a kind of efficiency close to 50% Solar battery.
In short, no matter whether it is an electric heating tube for solar water heaters or other liquid electric heating tubes, it is not allowed to dry dry from the liquid. Otherwise, the internal temperature of the electric heating tube will be too high and the electric heating tube will burn out, resulting in hidden safety hazards.
The structure of all-glass vacuum tube is composed of inner glass tube, solar selective absorption coating, vacuum interlayer, cover glass tube, support (spring clip), getter and other parts.
No scaling: the condenser tube and the inner tube are sealed as a whole, and there is no water in the tube, which solves the problem of long-term scaling of the ordinary vacuum tube. Clarify difficult issues.
In recent years, with the continuous fog and haze in winter, the northern region has promoted clean heating in winter, which has become a livelihood project related to the success or failure
Heating principle and process of solar water heater
The heating of solar water heaters is mainly based on the principle that hot water is lighter than cold water and hot water rises, just like the kettle in many rural households.
In order to ensure a good sunlight receiving effect, while taking into account the upward circulation of hot water, the black vacuum tube is generally 40 to 50 degrees from the ground, and the angle is slightly larger as it goes to the north. It is generally around 40 degrees in the south and 45 degrees in the north.
Mounting brackets. After making preparations, unpack the solar water heater and see if the parts inside are complete. Because the solar energy is usually installed on the roof, sit north to south, make sure there is no sunlight, so as to receive the longest day of sunlight, then mark it, align the assembled bracket bevel frame with a fixed orientation, and fix As long as there is no looseness.
"It's been cooling very fast recently. There are old people and children in the family. You have to buy a good water heater." In order to take a comfortable hot bath in winter, Mr. Ge, who just moved to his new home, spends time in the appliance store. Although there are many water heater products, especially solar water heaters, which are energy-saving and environmentally friendly, Mr. Ge still has no idea. "So many brands say they are good, and I really don't know which one to choose."
The vacuum tube is the "heart". solar water heaters. Currently, vacuum tubes made by solar water heater manufacturers are uneven and "various", ranging from 1.5 meters to 2.3 meters. The length of the vacuum tube is almost "traditional". of
Hotels all need 24-hour hot water supply, so the construction of solar water heating projects is also very critical, not only to ensure good practicability, but also to not have quality problems. Generally speaking, it is necessary to be inspected by a professional construction site to determine the installation location and specific channel design, so as to ensure a good construction matching effect.
If only one or two tubes of solar energy are broken, you can go to a store that sells solar accessories and buy one for tens of dollars. In many cases, you can do it yourself, and you can easily replace it. Of course, the prerequisite is that you need a solar water heater. To understand the structure and working principle.
If the water heater is not used for a long time, effective maintenance measures must be taken. For safety reasons, the water heater should be disconnected from the current. Otherwise, it will cause the water heater to keep running for a long time, and the parts will accelerate aging, thereby speeding up the elimination of the water heater. Service life.
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