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1. First of all, the solar vacuum tube is generally not separated, unless the vacuum tube needs to be replaced after sale.
2. A good vacuum tube is about a few hundred yuan.
3. If you need to buy solar energy, consult the vacuum tube, which is generally sold as a complete set of solar energy.
4. Identify the vacuum tube and teach you four simple methods:
One look at the color: opaque tubes are good.
Looking inside from the nozzle of the vacuum tube, the brightness of the whole tube is high, and the red copper color indicates that the film absorbs poorly, which has strong light transmittance and poor heat collection effect; On the contrary, the high-quality vacuum tube does not have a little light when viewed inside, and from the outside it looks like a child's eyes, black and shiny. This is related to the coating technology of the tube and whether the cleaning is clean, if the cleaning is not clean, a large number of impurities will be left, even a handprint will make the whole tube scrapped, and the cleaning process can not tolerate the slightest sloppiness.
Second, the weight: the weight indicates that the pipe is good.
The weight of a high-quality vacuum tube is as much as seven taels than that of an ordinary vacuum tube. If you rub it with your hand, you will have a noticeable feeling. This is directly related to its material and thickness, even with the same interference coating technology, insufficient thickness of the film layer, insufficient thickness of the outer wall and too high content of metal ions will affect the quality of the tube.
If you see Huangming's vacuum tube with your own eyes and reach out to touch it, the feeling will definitely make you unforgettable for a lifetime, and you will definitely not be confused by other brands in the future.
Three listen to the sound: the sound is brittle, indicating a high degree of vacuum.
Knock it with your hand, and the high-quality vacuum tube will produce a crisp and crisp sound, like a simple musical instrument, and the aftersound surrounds, on the contrary, the sound of the inferior vacuum tube is muffled and muddy. The sound is crisp because of the high vacuum, the sound is dull because the vacuum is too low, which is directly related to the processing technology, some vacuum time is only twenty or thirty minutes, the vacuum is only 10-2pa, only the vacuum is 100 times worse than the high-quality vacuum tube, and the cost of each is also more than ten yuan.
Four tests of sturdiness: the sturdier the better.
The vacuum tube was hit by a 30 mm diameter steel ball falling vertically from a height of 50 cm, and it was still unharmed. (There is no national standard, Huangming's unique self-testing standard, simulating the most serious hail).
Consumers are particularly confused by the fact that there is not much difference between inferior vacuum tubes and high-quality vacuum tubes in the early stage of use, but after about 3 years or even more than 1 year, there will be obvious differences, the film layer falls off, black, air leakage, slow heat collection, fast heat dissipation, can not be used at all in winter, and even there is no hot water in spring and autumn. High-quality vacuum tubes can ensure that the performance does not decay for more than ten years.
If you want to know more about the precautions for purchasing, you can click on our business card in the upper left corner to consult me.
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Different brands, different models, and different sizes of solar bile ducts are different. It is about a few tens to hundreds of dollars.
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The price of solar vacuum tubes varies, from tens to hundreds to more expensive.
The core hidden danger of the vacuum tube: hidden danger point: poor insulation of the vacuum tube, fast heat dissipation - the water heater becomes a "chiller", "heart failure".
The vacuum tube collects heat and dissipates heat at the same time; Vacuum tube heat dissipation accounts for 50% of the water heater; If the vacuum level is low, it will be like a hot water bottle.
gall, two or three years will not keep warm; If the glass tube is not cleaned before coating, the water stains and handprints will vaporize at high temperature to reduce the vacuum level;
In order to save electricity, the general vacuum pumping time is short, resulting in low vacuum; If the glass annealing is not good, there will be hidden stress hazards, it is not resistant to cold and thermal shock, and it is easy to burst; The emission ratio of the film layer is high, the heat loss is large, and it is easy to freeze and crack when it is cold in winter.
The vacuum tube is the core component of solar energy, if it is damaged, leaking, and decoating, it will directly affect the heat collection effect, and there is no hot water in spring, autumn and winter.
The vacuum tube suffers from congenital heart failure (the vacuum tube is not clean, the coating technology is backward, and the vacuum degree is low), and the heat collection performance is rapidly decayed.
Serious inconvenience to life.
1. Slow heat collection, hot water can not be used for a long time - upset!
2. The water temperature is low, the temperature is not reached, and the hot water cannot be used - angry!
3. Fast heat dissipation, no hot water overnight - painful!
4. Old hibernation, no hot water in winter - desperate!
5. Decay is fast and scrapped in a year - go crazy!
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Generally, the grass is particularly large, and the ** of a piece of grass ranges from 50 yuan to 100 yuan, and the ** of small grass ranges from 15 yuan to 30 yuan.
Cordyceps sinensis is a kind of Cordyceps bat moth larvae with parasitic fungi in its body, and is known as "China's three most precious Chinese medicinal materials" along with wild ginseng and deer antler velvet.
Cordyceps sinensis has been rising in recent years, and since 2010, Cordyceps sinensis has been soaring, with an average annual increase of 1,000 to 2,000 yuan per kilogram. This is mainly due to the increase in market demand, but also the speculation of floating capital. In recent years, Chinese herbal medicines have risen sharply, and all kinds of funds have rushed in, and the wind of speculation has intensified.
As a high-grade Chinese medicinal material, Cordyceps sinensis is obviously difficult to avoid the fate of being hyped. It is understood that the lowest market price of Cordyceps in Beijing is 568 yuan, that is, 568,000 yuan kilograms, and 568 yuan of Cordyceps sinensis is so high that many ordinary consumers are discouraged.
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Hello Cordyceps** is priced by size, color, dryness, 10-150 sticks.
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The specifications of Cordyceps are large and small, so how much a Cordyceps is not the same, the market ** from 50-150, large Cordyceps ** and small Cordyceps ** are not the same, in fact, Cordyceps sinensis is calculated in grams, according to different origins, size and quality, the price of each one is also different. According to its size and specifications, it can be divided into two one gram, three one gram, four one gram ......Then you can give the price of one cordyceps of different sizes and specifications. However, the larger the Cordyceps, the better the effective ingredient and the better the immune effect of the human body.
At present, FLM Cordyceps and Tong Ren Tang Cordyceps are both the oldest brands with the best consumer reputation, but Tong Ren Tang is more than twice as many Cordyceps of the same quality.
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There are many ways to eat Cordyceps, such as soaking in water, decoction, soup, porridge, grinding, soaking wine, these methods can be adopted, daily health care can be flexibly matched, if it is a patient, it is recommended to soak in water and decoction to take, the health care dosage is within 2 grams a day, and the treatment dosage is 2-5 grams a day. It is recommended to wash Cordyceps sinensis first, you can brush it slightly with a clean toothbrush, and then wash it with water.
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The price is determined according to the size, some people are counterfeit Cordyceps sinensis ** is also very expensive, I suggest you can take a look at the grass Cordyceps sinensis is only 237 yuan a gram, ** are very cheap, and then, Tong Ren Tang's ** is expensive, suitable for gifts.
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Generally, 200 pieces, a piece of about 450 yuan, depending on the material and length.
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Different brands, ** vary.
Generally about 100 sticks. During the warranty period, it may be cheaper to find after-sales service.
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It depends on whether you want the original tube, if it is a large manufacturer like Tsinghua Sunshine or Huangming, the tube is relatively expensive, and then it depends on the size of your glass tube, the length and whether it is a heat pipe. **Between 100-500.
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Hello, this needs to look at the caliber, specifications, technical parameters, quantity and other factors of your insulation pipe to accurately determine the price.
Now Huayang solar 20 tubes are about 2600 yuan.
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Depending on how big it is, the small one is about 1,000.
The bumper of the water tank is not very much, and the airbag is more expensive, and the specific ** is not very clear. This basically depends on how you want to repair, if you take the insurance, you don't have to care, if you want to repair yourself, buy accessories, the front bar is plastic, about 200, about 200, about 200 paint and polishing, if you also know the repair of the car, it may be cheaper, generally buy are analogues, few original. There are some differences in different places, but the rear bumper of the Jetta car is about 120 for the factory bumper, and the original bumper is more than 800, and the installation fee and painting are about 100. >>>More
Jin Dongguan 16 is the best one to use in winter, this is a new product in recent years, my friend's family has been buying for a year, I feel that the winter effect is good, he seems to be 5000 yuan when he buys it. Automatic water feeding, showing water temperature and water level, automatic electric heating, is really convenient.