Tag Archives: non-pressurized solar water heat

Obama cited Chinas solar technology research attention

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Obama cited China\\ s solar technology research attention

      U.S. President Barack Obama Beijing at 10:00 on January 26 State of the Union in Congress. Throughout his speech, Obama mentioned four times in China, India and other rapidly developing controls, that the crisis facing the United States competitive. Obama said: \"Some countries, such as China and India, they have realized that only by change order in the world, invincible, so they began working as soon as possible to educate the children, and extended education time, more emphasis on math and science. Just recently, China has the world\\ s largest private solar energy research institute. \"

In recent years, rapid development of China\\ s solar industry, solar energy production are taking advantage of scale in the world. In 2010, domestic production of vacuum coating machines with 2,000 units, more than 400 million sticks vacuum tube production, the actual use of 368 million, the annual total production of water heaters, 49 million square meters, an increase of 16.7%. Solar collectors in 2009, ownership is 1.45 million square meters, the actual usage in 2010 is 168 million square meters, an increase of 15.9%; value of 73.5 billion, an increase of 22.5%, ranking first in the world scale. At the same time, with Norit, Wong Ming business investment in R & D continued to increase domestic solar technology research also began to cut outcrop angle, and gradually catch up with international advanced level. Especially led Norit and building integrated solar technologies and solar energy in high temperature technology, has reached the world\\ s leading technology, Norit 2010, only to get five major national invention patent. Over the years, Norit active with the University of Stuttgart, Germany, Tsinghua University, Shanghai Jiaotong University, Shandong University and other famous universities building cooperative technical research. Norit which established cooperation with Tsinghua University, Institute of Optoelectronics, developed into a total and the temperature and the collector, the collector temperature of 150 ?, to fill the international blank, the success of the and refrigeration, desalination , dyeing, textile and other industrial and agricultural production to provide technical support for solar applications. Norit October cooperation with Shanghai Jiaotong University, became the Solar Research Institute, will focus on solar air conditioning and refrigeration, desalination, etc. Solar energy saving technology industry. Currently, the Institute of Solar Design , a successful solar cooling, heating, hot water, photovoltaic and other four in one application, not only for solar home become a reality, so that solar energy can become the main household, change of solar auxiliary power status. China Solar Energy Industry Association Network

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President of World Association of Sun City Solar has become a single spark can Liaoyuanzhishi

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September 16, 2010 morning, the World Association of Sun City Chairman Chris? Dezhou in Shandong in Vandevelde at the Fourth World Conference in Sun City at the opening ceremony. Speech is as follows: Dear leaders, distinguished guests, ladies and gentlemen: Good morning!

First of all, on behalf of the World Association of Sun City, Sun City to the Fourth World Conference held in warm congratulations! Republic of China to host this conference the Ministry of Science, Industry and Information Technology, Ministry of Finance, the Ministry of Housing and Urban-Rural Development, the National Energy Board, State Administration of Foreign Experts Affairs, China National Tourism Administration and Shandong Provincial People s Government to host the conference German City People s Government express our heartfelt thanks! To attend the conference leaders, distinguished guests good wishes!

Currently, global climate change is one of the most significant challenges facing the. Represented by the solar renewable energy development and utilization is a response to global climate change, alternative strategies for the implementation of traditional energy sources, an important way to achieve sustainable development. Advocated by the World Association of Sun City Solar City movement, after South Korea Daegu, Oxford, UK, Australia, Adelaide, and now Texas, fourth Conference of China, said a single spark can become a prairie fire, in a short time to sustainable development of human society to a fast-track – to maximize the use of renewable energy and energy efficiency.

Made us feel happy is the rapid development of China s national economy at the same time, according to "people-oriented, low carbon economy," the general requirements, the main direction of development priorities and shift to the "transfer mode, adjust the structure for the global green economic development and recycling economy has made great contributions, especially in Dezhou City, in the transform and upgrade traditional industries, focused on the development of new energy, biotechnology and other emerging strategic industries, solar and other new energy development and utilization of production in China and go the forefront of the world, while the Fourth World Conference in Sun City is also no doubt that the Chinese and foreign guests will be attending, and foreign mayors and experts provided an excellent opportunity to further promote the booming new industries, promote the exchange of low-carbon production and lifestyle information, learn from experience! will also improve our common environment, climate change and build a better home and make an important contribution!

Finally, I wish the conference a complete success! Thank you!

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Full analysis of solar water heaters Frequently Asked Questions

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Full analysis of Frequently Asked Questions

    Solar water heaters are usually the collector, insulated storage tanks, connecting pipes, brackets and control system.

By using the classification, can be divided into seasonal water heaters, water heaters, as well as year-round all-weather solar water heaters, auxiliary heat source. According to the principle and structure of the collector can be divided into flat-water heater and vacuum tube water heater. By the working fluid flow in different ways, generally divided into nausea drying, recycling-based and DC-type three.

Solar water heater solar collector is to receive and convert solar energy to heat the core components and key technologies, the cost of solar water heaters account for about one-half the total cost of about. Full glass according to the different media can be divided into hot all-glass vacuum tube and heat pipe vacuum tube collector (glass and metal combination) collectors two. Their main components are the key to a vacuum tube or heat pipe vacuum tube.

Currently the most popular all-glass vacuum tube as an elongated thermos bottle, the two pipe length of 1.2 meters or 1.5 meters in diameter, 37 mm and 47 mm concentric glass tubes formed by the vacuum. All-glass vacuum tube materials, processes and simple structure, good reliability, with a great application prospects.

Solar hot water heater tank is the storage device, its structure, capacity, thermal insulation and materials will directly affect the water heater\\ s performance and operation of the quality.

Tank type, divided by the square shape, flat box-type, cylindrical, spherical tank; placement method divided by vertical and horizontal; divided by atmospheric pressure state\\ s open-closed water tank and pressure Water Tank; according to whether there is an auxiliary heat source can be divided into ordinary water tank and water tank with auxiliary heat source; by way of heat exchanger can be divided into direct and secondary heat exchanger tank indirect heat exchange tank.

Production quality of the material tank, the tank pressure, temperature, seepage and water quality greatly. Domestic water tanks commonly used materials treated with preservatives or enamel steel, galvanized steel, rust-proof aluminum, drugs, plastic or glass steel, stainless steel panels. Hot water tank features include heat characteristics, heat characteristics, thermal insulation properties. Exothermic feature is the hope that the hot water tank can be put out, easy to use. Domestic water tank can be vertical, into the cold water from the lower part of the roof, hot water from the upper outflow. Heating characteristics of most of the water tank is heated up top, then lower the heat up slowly. Insulation characteristics refer to the speed of decline in water temperature, and sealing of water tanks, insulation materials, temperature, size and other related water capacity.

With the recent sales surge water heater, problems follow. Now to tell you about solar water heaters common solution to the problem.

First, there is no water around, how to use solar water heater?

In the absence of water areas to the use of solar water heaters, and can use the pump in Sheung Shui, an additional an additional auxiliary tanks and solar water heater the same height, to store cold water, so that against the cold water bath.

Second, solar water heaters in the course of what issues should pay attention to?

1 Note Sheung Shui time.

2 according to weather conditions, the decision on the water to ensure proper water temperature when bathing.

3 regularly check water heater pipes, vents and other components are working properly.

4 serious air pollution or wind, dry areas regularly wash vacuum.

5 water heater installation. Do not move non-professionals, loading and unloading the machine, to avoid damage to critical components.

Third, how to choose water heater according to family size?

Under normal circumstances, each one bath of hot water to be 20-40kg, 6.5kg each tube can be heated in water, according to family size and can be used to estimate the required bathing water heater capacity.

Fourth, how to determine the solar water heater full of water?

Solar water heaters have the general safety overflow pipe, according to the overflow pipe to determine whether the drainage water over the state, the other can be equipped with water level controller, water full automatic alarm, according to police discrimination.

Five tanks broken up, deflated may be what causes it?

May be due to vent blockage, when the water into or discharged, the internal air can not be discharged or to be added, the formation of internal and external pressure difference, resulting in breaking up or deflated tank.

Sixth, the size of the tank and vacuum tube count of the relationship?

General design is based on bathing water heater hot water temperature required for the design, the design temperature record Stewart solar water heater range is 400 ? ~ 900 ?, the water heating tubes each approximately 6.5kg.

Seven, Sheung Shui, should pay attention to what the problem?

As the vacuum drying in the air when the tube temperature can reach 2500 ? or so, so water in the tank or the first time before sunrise or in the Sheung Shui to be a half hour after sunset.

Eight, how to determine the pros and cons of solar water heater?

Solar thermal solar water heater is a kind of part of the entire water heater including collector, heat storage part, stand part. Determine the merits of the most important part of the collector is the collector component based on the absorption rate and the divergence rate, which is the relevant materials and production process.
 

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Slowed the pace of development of solar water heater industry worries have now

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Slowed the pace of development of industry worries have now

Today, solar energy grew nearly 20 years this sunrise industry problems, not only solved the \"quality gate\", as well as the process of development of the industry there have been worries.

    February 24, 2011, China Central Television, \"Weekly Quality Report\" column exposed the small workshop of solar water heater Haining various misdemeanors. For a time, \"quality gates\" solar water heater industry will be pushed to the cusp of public opinion. Today, this growing sunrise industry for nearly 20 years the problems, not only solved the \"quality gate\", as well as the process of development of the industry there have been worries.

Growth rate slows

\"In 2010, solar water heater industry output value reached 73.5 billion yuan.\" Faced with such a large scale, Huang Ming Solar Energy Group Co., Ltd. Development Minister ZHANG Li-feng was under tremendous pressure, \"from years of development point of view, to benefit in the policy of home appliances, solar water heater industry in 2009 has been a year of rapid development, rapid market expansion, but in 2010, the industry is not able to continue this good situation, while showing a high downward trend. \"

As ZHANG Li-feng said, the development of solar water heater industry in recent years, the curve does have some fluctuations. Beijing Song of Four Seasons Solar Energy Technology Co., Ltd. Deputy General Manager of Mu Lu Jian is with the data visually describe the development path of the solar water heater industry. \"According to industry statistics, solar water heater industry in 1999 year on year growth rate of 43%, 28% in 2000, 2004 and 2005, respectively, only 12.5% ??and 11.1% in 2006, the policy of positive stimulation and returned to 20 % in 2008 to 25% annual growth rate in 2009, home appliances to the countryside policies, the industry growth rate rose to 35.5% in 2010 down to 11.7% growth again. \"

\"At present, the main market pressure solar water heater is not small.\" According to ZHANG Li-feng analysis, first of all, the rural market has developed for many years to promote the further down the pressure is very large, very competitive, some brands have been selling the product on behalf of the building to the village. Second, the urban market development is not smooth, first-tier cities are still difficult to see the solar water heater business figure, sales of rely mainly on the concentration of retail and residential projects.

The people in charge of a solar water heater on the \"electrical\" reporter, said the first four months of this year\\ s sales situation, raw material prices increased by an integrated, human costs, policy driven increasingly weaken the effect of other factors, the solar water heater industry in 2011 development is not optimistic.

Of varying quality

Faced with such volatility, many solar water heater business executives have said that no matter the industry or enterprise, in 2011 the pressure is not small. Haining early \"quality gates\", leaving no doubt that business concerns already worse in 2011.

\"Haining \\ quality gate\\ incident solar water heater industry is currently exposed some problems, such as low technical threshold, unstable product quality, service is not in place, the prevalence of fake and shoddy products, etc. These problems reduce the credit industry as a whole and hinder the brands pace. \"ZHANG Li-feng remarks revealed the voice of solar water heater brands. Respondents responsible people, present, fake brands on their own costs are very high, the effect is not good. Hope relevant departments to increase efforts to combat counterfeiting, to strengthen the supervision of small businesses for the solar water heater industry to create a good environment for competition.

Indeed, after melamine, leather, milk, lean and so a series of blows, the quality of Chinese consumers has been \"injured can not afford.\" Exposure of quality problems, for the solar water heater industry, especially for Haining solar energy companies, will bring a period of crisis of confidence. Solar energy companies as a member of Haining, Zhejiang, Home Depot Solar Co., Ltd. has been adversely affected by the spread. Xu Jianping, general manager of the company, said the solar water heater Haining bad just been exposed, the Home Depot is participating in two projects of the tender, although the various conditions are dominant, but ultimately were not successful. \"Haining solar water heater to the overall development of good business, many company\\ s products of the EU and Australia and other regional and national certification, but the small number of enterprises the negative impact of illegal operations have to be borne by the overall.\"

An unnamed person in charge of solar water heater brands frankly, Haining is only the tip of the iceberg, not only Haining, Hebei, Henan and other places more rampant counterfeiting. Haining is mainly produced poor \"Pong brand\" products, and Hebei, Henan and other places is the production of \"high imitation\" brand . \"In contrast, \\ high imitation goods\\ industries and businesses for more direct damage, more serious, more urgent need to punish.\"

\"Quality is the foundation for the development of solar water heater industry, the enterprise must return to the fundamental.\" Jiaxing Tongji Sunshine New Energy Co., Ltd., said deputy general manager of the British upper primary. New Energy Co., Ltd. Shandong Power Norit vice president of marketing, said the high definition are present, different tier companies within the industry are great differences in product quality, part of the solar water heater in the reliability and comfort can not meet consumer demand, product main problem concentrated in vacuum quality standards, thermal performance does not meet the national standard, poor insulation performance, product design and construction there are risks and so on.

In addition to calls to create a favorable market environment, the solar water heater industry\\ s concern for product quality has reached the peak. Solar Energy Co., Ltd., Jiangsu Province, China Yang, assistant general manager in the wave of the \"electrical\" reporter, said: \"At present, solar water heater industry is not high level of automation equipment, large enterprises should do some basic research, relying on modern production system to ensure product quality. \"

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Solar water heaters can be linked to the balcony appearance Yu Qiakuai

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can be linked to the balcony appearance Yu Qiakuai

s generally need to be installed on the roof, only the top floor of the villa and gardens in order to use high-end owners. The \"Yu Qiakuai\" on a new type of solar water heaters, but for ordinary residential use because it can be installed on the balcony.

    Solar water heaters generally need to be installed on the roof, only the top floor of the villa and gardens in order to use high-end owners. The \"Yu Qiakuai\" on a new type of solar water heaters, but for ordinary residential use because it can be installed on the balcony.

Installation, this solar water heater heat sink can be directly \"linked\" in the walls of the balcony, looks like the addition of a thick glass. You can also put the carpet, like, laying on the roof surface.

Manufacturer that such solar water heater installation is simple and can resist harsh environments. With the same level compared to normal solar water heater, install, reliable, quick to mention temperature, water insulation, and other aspects advantage, weighs only ordinary solar water heater 1 / 10, but the expensive price of 1,000 yuan, the current market costs about 5000-8000 dollars.

It is understood that R & D to promote solar water heaters in the long side in the process found that many users want to install solar water heater to save energy, but not the top, no place to install solar water heaters or inconvenience to install, so he developed this can be \" hanging \"on the balcony of the solar water heater.

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