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Structure and Principle

The heat pipe is hollow with the space inside evacuated, much the same as the solar tube. In this case insulation is not the goal, but rather to alter the state of the liquid inside. Inside the heat pipe is a small quantity of purified water and some special additives. At sea level water boils at 100oC (212oF), but if you climb to the top of a mountain the boiling temperature will be less that 100oC (212oF). This is due to the difference in air pressure.

Based on this principle of water boiling at a lower temperature with decreased air pressure, by evacuating the heat pipe, we can achieve the same result. The heat pipes used in AP solar collectors have a boiling point of only 30oC (86oF). So when the heat pipe is heated above 30oC (86oF) the water vaporizes. This vapor rapidly rises to the top of the heat pipe transferring heat. As the heat is lost at the condenser (top), the vapor condenses to form a liquid (water) and returns to the bottom of the heat pipe to once again repeat the process.

At room temperature the water forms a small ball, much like mercury does when poured out on a flat surface at room temperature. When the heat pipe is shaken, the ball of water can be heard rattling inside. Although it is just water, it sounds like a piece of metal rattling inside.

This explanation makes heat pipes sound very simple. A hollow copper pipe with a little bit of water inside, and the air sucked out! Correct, but in order to achieve this result more than 20 manufacturing procedures are required and with strict quality control.

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Haining Oupairineng Solar Water Heater Co.,Ltd

Address: Wanshou Industry Zone, Yanguan Town, Haining City ,Zhejiang ,China, Haining, Zhejiang , China, 314405
Tel: 0086-573-87718911
Haining oupairineng solar water heater co. ltd. is an enterprise specialized in the production of solar water heater, has been authorized as director unit of chinese solar heat utilization and zhejiang solar industry association.The enterprise has obtained THE LOW-CARBON ECONOMY CONTRIBUTION by the United Nations Industrial Development Organization International Solar Energy Center for Technology Promotion and Transfer(UNIDO-ISEC) ,and has been selected as THE UNITED NATIONS DESIGNTED ENTERPRISE OF 2010 SHANGHAI WORLD EXPO MUSEUM The enterprise has a larger-scale national-standard industrial park and first-class digitized production line with solar water heater productivity of 300,000 sets per years,which has came into being the intact industrial chain of quartz sand borosilicate glass tubes vacuum tube solar water heater. The company produces a variety of products.And the products range four brands, 26 types and 170modles ,which are suit to all kinds of national and regional climate,water quality,hence to completely meet the needs of both domestic and abroad customers. The enterprise has implement IS09001:2008 international quality management system in all process,and it has passed the certificate of CE for Europe and Europe environmental-friendly ROHS certificate,,SGS export quality certificate,and the china compulsory national-standard certificate CCC. The company owe the power of import and export itself , and had exported to the U.S.,Russia,France ,Mauritius, Vietnam and more than 40 countries and regions.The exports is outstanding among the same industry.