Method for preparing composite hollow ceramic solar energy heat collection plate
A technology of solar heat collector plate and composite ceramics, which is applied in the parts of solar heat collectors, solar heat collectors, solar thermal energy, etc., can solve the problem of complex structure and manufacturing process of vacuum glass tube heat collectors, and attenuation of sunlight absorption rate , high price issues
Active Publication Date: 2009-07-08
SHANDONG TIANHONG CAMBERED PLATE
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Problems solved by technology
[0002] Solar energy utilization is mainly divided into photoelectric utilization and solar thermal utilization. At present, solar thermal utilization is mainly solar water heaters. Solar water heaters are divided into sun-drying type and circulating type. Both have the following disadvantages: 1. The metal tube plate heat collector is mainly made of copper, aluminum and other materials, and the structure and manufacturing process of the vacuum glass tube heat collector are relatively complicated. The heat absorption area is calculated and the price of both is relatively high
2. Both of them use black sunlight-absorbing paint applied at low temperature. Under the long-term sunlight, there will be a certain degree of aging to attenuate the sunlight absorption rate, which is one of the reasons for the efficiency and life problems.
3. Difficult to integrate with buildings due to material and structure reasons
However, vanadium-titanium black porcelain uses vanadium extraction tailings as the main raw material. At present, the demand and production volume of vanadium are not large, resulting in a certain limit in the output of vanadium extraction tailings. Composite ceramic hollow solar collector plates based on conventional ceramics are very necessary to make more effective use of vanadium extraction tailings
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[0030] 1. Common ceramic raw materials clay, quartz, feldspar are crushed and ball-milled to become ordinary ceramic mud. After passing through a 200-mesh vibrating screen, excess water is removed by pressure filtration to form a mud cake. After rough refining, a vacuum mud mixer is used to squeeze it into a mud section. Put it into the stale house, and then use a vacuum extruder to extrude it into a porous through-hole plate with a width of 500 mm, a thickness of 38 mm, 12 holes in the middle, a thickness of the hole wall of 5 mm, and a length of 1000 mm. The partial partition wall at the end of the through hole connects the two ends of the through hole to form a through hole plate connected to the end of the hole. The two ends of the through hole plate are bonded with plugs with inlet and outlet of the same material, which becomes a ceramic hollow plate green body. Such as figure 1 As shown, after the ceramic hollow blank plate is dried, stand it upright to extract 65% of va...
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Abstract
The invention relates to a black ceramic, named as V-Ti black porcelain. One of raw materials is vanadium recovering tailing. Sunshine absorption ratio of V-Ti black porcelain is 0.9 and is the good photo-thermal conversion material. Because output of vanadium recovering tailing is finite, the invention provides a method that V-Ti black porcelain is used as inner and outer surface layers; normal ceramic raw material is the basic body of hollow ceramic plate by extrusion; by their combination composite ceramic hollow solar heat collecting plate is made so that vanadium tailing and V-Ti black porcelain can be made use of effectively.
Description
(1) Technical field [0001] The present invention relates to a manufacturing method of a solar heat collector, in particular to a manufacturing method of a composite ceramic hollow solar heat collecting plate, and in more detail to using industrial waste—vanadium extraction tailings as a raw material or one of the raw materials as solar energy absorption Combining materials with common ceramics makes it a method for composite solar collector panels. (2) Background technology [0002] Solar energy utilization is mainly divided into photoelectric utilization and solar thermal utilization. At present, solar thermal utilization is mainly solar water heaters. Solar water heaters are divided into suffocating type and circulation type. The circulation type has higher efficiency. The heat collector mainly adopts metal tube plate heat collection Both have the following disadvantages: 1. The metal tube plate heat collector is mainly made of copper, aluminum and other materials, and the...
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IPC IPC(8): F24J2/46C04B35/00C04B35/622
CPCY02B10/70Y02B10/22F24J2/484Y02E10/40F24S70/16
Inventor 曹树梁许建华蔡滨王启春石延岭许建丽雷鹏云赵之彬庞庆伟
Owner SHANDONG TIANHONG CAMBERED PLATE