As the state has introduced various policies to support renewable energy development, especially in the “Twelfth Five-Year Plan for Renewable Energy Development†formulated by the state, encourage and guide private capital investment in new energy fields, etc. As an important demonstration and promotion project, governments at all levels across the country have successively issued more than 140 related documents concerning the application of solar water heating systems in cities and buildings to boost the development of solar thermal utilization industries. At the end of the year and the beginning of the year, most of the solar energy industry markets showed signs of fatigue. In the past year, despite the impact of international financial crisis and domestic real estate regulation, China's solar thermal utilization industry has slowed its development pace. However, after entering 2013, the market sales of solar energy have shown that the off-season is not thin.
“Last year, the overall development of the solar energy industry was steadily and steadily growing, which was still higher than the average economic growth rate, which was an increase of 11% over the previous year. At the same time, the solar water heater market also witnessed new changes last year: this is the change from the retail market to the engineering market. The conversion of vacuum tubes to flat-type solar water heaters, in which the solar engineering market is growing at a rapid rate, with a growth rate of 50%. It is understood that in January and February of this year, five-star solar energy has won more than 100 million yuan sales contracts, an increase of 200 over the same period of last year. %. It has to be said that safe, reliable, and better combination with the building, longer lifespan efficient flat-plate solar water heater products, has won the favor of consumers through its own advantages and practicality. On the other hand, the use of solar energy by businesses has also greatly reduced the consumption of various types of energy. According to statistics, the company has achieved good corporate performance and has also created good social benefits. It is only the Anyang Dongcheng and Hefei Daxing New Home. Two solar hot water projects can save 3,300 tons of standard coal, reduce 8,100 tons of carbon dioxide, reduce 66 tons of sulfur dioxide, and reduce 30 tons of dust.
Luo Bing, an associate professor at the Xi'an University of Finance and Economics, believes that the off-season is not light and it is hard truth to take the initiative. While the company has achieved good results through the application of centralized hot water supply engineering, heating engineering, industrial and medium temperature engineering, and agricultural application engineering, it also promoted its own qualifications.
brightness
LCD is a substance between solid and liquid. It can't emit light by itself, so it needs additional light source. Therefore, the number of lamps is related to the brightness of the Liquid Crystal Display. The earliest liquid crystal displays had only two upper and lower tubes, the lowest of the popular type was four lamps, and the high-end one was six lamps. The four-lamp design is divided into three types of placement: one is that there is a lamp on each of the four sides, but the disadvantage is that there will be dark shadows in the middle. The solution is to arrange the four lamps from top to bottom. The last one is the "U"-shaped placement form, which is actually two lamp tubes produced by two lamps in disguise. The six-lamp design actually uses three lamps. The manufacturer bends all three lamps into a "U" shape, and then places them in parallel to achieve the effect of six lamps.
Tip: Brightness is also a more important indicator. The brighter the LCD, the brighter the LCD, it will stand out from a row of LCD walls. The highlight technology we often see in CRT (ViewSonic is called highlight, Philips is called display Bright, BenQ is called Rui Cai) is to increase the current of the shadow mask tube to bombard the phosphor to produce a brighter effect. Such a technology is generally traded at the expense of image quality and the life of the display. All use this The products of this kind of technology are all bright in the default state, you always have to press a button to implement, press 3X bright to play the game; press again to turn to 5X bright to watch the video disc, a closer look is blurred, you need to watch The text has to be honestly returned to the normal text mode. This design actually prevents you from frequently highlighting. The principle of LCD display brightness is different from that of CRT. They are realized by the brightness of the backlight tube behind the panel. Therefore, the lamp has to be designed more so that the light will be uniform. In the early days when selling LCDs, it was a great thing to tell others that there were three LCDs. But at that time, Chi Mei CRV came up with a six-lamp technology. In fact, the three tubes were bent into a "U" shape. The so-called six; such a six-lamp design, plus the strong luminescence of the lamp itself, the panel is very bright, such a representative work is represented by VA712 in ViewSonic; but all bright panels will have a fatal injury , The screen will leak light, this term is rarely mentioned by ordinary people, the editor personally thinks it is very important, light leakage means that under a completely black screen, the liquid crystal is not black, but whitish and gray. Therefore, a good LCD should not emphasize brightness blindly, but more emphasis on contrast. ViewSonic's VP and VG series are products that do not emphasize brightness but contrast!
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