Solar Water Heater Industry, Behind Three Mishaps Refractory Gb
After 10 years of cultivation, solar water heater industry in China has formed a vibrant momentum for development. Appeared as the Emperor Ming, 100 million to Tsinghua sun and other powerful brands. China Renewable Energy Association, the Secretary-General Meng Xiangan reporter’s interview that the next 5 years, China’s solar water heater market will reach 300 billion yuan. Huge “cake” angered small businesses rush beginning of this century, dozens of well-known home appliance brands have engaged in a solar water heater industry, such as Haier, Little Swan, Rongshida, Meiling, Panda, Vantage, etc., these gallop home appliances market forces are the elite for many years the solar industry’s ambitions have forced beach; many SMEs are also tempted to blow against our faces, get together a few people began to assemble solar water heater, the formation of a time in the industry, “Rain Comes from Wind” , “your Changba me play,” the cohabitation situation.
According to incomplete statistics, China solar water heater manufacturers up to 5000, but the real claim to big companies that have production capacity of less than 10 brands. Many small businesses to seek immediate, in product design and manufacturing cut corners, shoddy, after-sales service is more like a “blank check.” According to statistics, solar water heaters, “orphan” staggering, 7 into a product “birth defects”, semi-endless troubles solar water heater, hot water, not enough trouble for consumers. According to newspaper survey combined a number of media: solar water heater industry before now several brands of less than 17% market share of only 16% of users on the use of solar water heaters were very satisfied or satisfied, 35.2% of users said the general, there are 48.7% of users dissatisfied. It can be said that mass production of inferior products, workshop-type businesses drag the whole industry, advance the industry’s future. State Council Development Research Center, Lu Renbo clear that the confusion caused by the current status of solar water heater industry is related to the reasons behind the national standard has been difficult to regulate the industry act play, upgrade industrial technology, and promote the sound development of heavy industry quickly. Lu Renbo said solar water heater behind national standards, to create a three Mishap in the industry.
A big Mishap Testing standards lag behind, resulting in products suffer from congenital “core” of Pathological
According to Meng Xiangan introduction, vacuum tube solar water heater is the “heart”, which directly determines the quality of the whole machine water heater performance. Vacuum tube solar collector performance and life by cleaning, coating, vacuum, sealing the impact of such technology. Some ultra-low-cost solar water heater vacuum tube used has the following shortcomings: a large number of vacuum tube and the residual impurities and water vapor, a face becomes hot gas, the vacuum was reduced; low vacuum coating stability is poor, two or three years of the endometrium layer will be aging, loss, resulting in rapid decay collector performance, lower life expectancy.
Because of this, test the vacuum tube solar water heaters to protect the quality becomes the key, but the existing national standards in this respect there is no corresponding test standards and methods. Experts pointed out that the vacuum tube through multi-channel process is completed, elongated like a thermos, a closed body, if you can not detect the most important performance indicator tube?? Vacuum, vacuum tube solar collector would be difficult to ensure performance and longevity. Since there is no relevant national standard testing standards, give some small businesses to open the door. In order to reduce costs, these companies use the technology to manufacture thermos vacuum tube solar water heaters. But the thermos vacuum is 10-1 to 10-2 Pa, on the interior can heat about two to three days, but solar water heaters work in the outdoors, national standard vacuum of 10-3 Pa vacuum. Process with thermos, vacuum rarely reach the national standard, this vacuum will be the film off after three or four years, white leakage, resulting in the loss of collector performance.
The absence of a vacuum tube vacuum testing standards to ensure national standards of the vacuum requirements exist in name only, and led to a large number of solar water heaters suffer from congenital “core” filth. Experts say, in fact, in accordance with the existing technology, fully able to effectively vacuum tube testing, and in the production process can control the testing on. Reporter was informed that at present, as Wong Ming, Qinghua Sun, 100 million can have such a strong brand associated with the testing process, only because the technology will require significant investment, most small businesses can not afford do not want to do. 100 million can be invested heavily in the introduction of computer control equipment, and exhaust of the vacuum coating processes have built computer monitoring laboratory, making each a vacuum tube is at or higher than the national standards, such as the national standard vacuum tube 10-3 Pa, 100 million to three high boiling vacuum of 10-4 Pa vacuum.
I am an expert from China Quality Dress, usually analyzes all kind of industries situation, such as flat bread maker , parts for breadmaker.
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