Revolution paraboloid type solar power collecting device adopting two times of point focusing
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A rotating paraboloid and solar energy collection technology, which is applied to solar thermal devices, solar collectors, solar collectors using working fluids, etc., can solve the problems of low heat collection efficiency and high cost, and achieve high heat collection efficiency and less light loss , the effect of prolonging the service life
Inactive Publication Date: 2017-09-19
CHANGZHOU UNIV
View PDF5 Cites 4 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0006] The technical problem to be solved by the present invention is: in order to solve the problem of high unit cost and low heat collection efficiency of existing medium-temperature solar collectors, the present invention provides a rotating parabolic solar collector with double point focusing. On the basis of the existing technology, a secondary concentrator is added. The secondary concentrator is a rotating parabolic reflector or a circular Fresnel reflector. The heat collecting tube is located between the secondary concentrator and the primary concentrator. At the same time, it is at the focal point of the secondary concentrator and the primary concentrator, which can reflect the sunlight passing through the heat collecting tube to the primary concentrator again, and gather it again to the heat collector. High thermal efficiency
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0031] Such as figure 2 As shown, a rotating parabolic mirror enhanced rotating parabolic mirror point focusing solar collection device, including: heat collector 1, secondary concentrator 3 and support 2
[0032] The heat collector 1 includes a primary concentrator 11 and a heat collecting tube 12, the primary concentrator 11 is a rotating parabolic mirror, and the rotating parabolic mirror has a focal point;
[0033] The secondary concentrator 3 is a rotating parabolic reflector, and the secondary concentrator 3 has a focal point;
[0034] The heat collection tube 12 is located between the primary concentrator 11 and the secondary concentrator 3, and the heat collection tube 12 is at the focal point of the primary concentrator 11 and the secondary concentrator 3 at the same time, and the heat collection tube 12 is loaded with energy absorption medium;
[0035] The bracket 2 is used to support the primary concentrator 11 , the secondary concentrator 3 and the heat collecti...
Embodiment 2
[0038] Such as Figure 4 As shown, a circular Fresnel reflector enhanced rotating parabolic reflector point focusing solar collection device, including: heat collector 1, secondary concentrator 3 and support 2
[0039] The heat collector 1 includes a primary concentrator 11 and a heat collecting tube 12, the primary concentrator 11 is a rotating parabolic mirror, and the rotating parabolic mirror has a focal point;
[0040] The secondary concentrator 3 is a circular Fresnel reflector, and the secondary concentrator 3 has a focal point;
[0041] The heat collection tube 12 is located between the primary concentrator 11 and the secondary concentrator 3, and the heat collection tube 12 is at the focal point of the primary concentrator 11 and the secondary concentrator 3 at the same time, and the heat collection tube 12 is loaded with energy absorption medium;
[0042] The bracket 2 is used to support the primary concentrator 11 , the secondary concentrator 3 and the heat collec...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to a revolution paraboloid type solar power collecting device adopting two times of point focusing. The revolution paraboloid type solar power collecting device comprises a heat collector, a secondary condenser and a bracket; the heat collector comprises a primary condenser and a heat collecting tube; the primary condenser is a revolution paraboloid reflecting mirror; the secondary condenser is a revolution paraboloid reflecting mirror or a circular fresnel reflector; the heat collecting tube is located between the primary condenser and the secondary condenser, and is located at focus points of the primary condenser and the secondary condenser simultaneously; and the bracket is used for supporting the primary condenser, the secondary condenser and the heat collecting tube. According to the revolution paraboloid type solar power collecting device, the secondary condenser is additionally adopted, and the revolution paraboloid reflecting mirror is arranged at the lower surface of the secondary condenser, the heat collector is located between the secondary condenser and the primary condenser and is located at the focus point of the secondary condenser, sunlight transmitting through the heat collector can be reflected to the revolution paraboloid reflecting mirror and then focused on the heat collector, so that the light loss is little, and the heat collecting efficiency is high.
Description
technical field [0001] The invention relates to a rotating parabolic solar energy collection device with double point focusing, in particular to a solar energy collection device with high light-to-heat conversion efficiency. Background technique [0002] The heat collector is a device that controls the optical path of radiated parallel rays through the reflective surface, increases the heating power of the object, and thereby increases the temperature of the object. From the perspective of optical path control and focusing, there are two types of focusing and non-focusing; among them, the heating power of the focusing collector is greater than that of the non-focusing collector, which can achieve a higher heating temperature. For focusing collectors, there are mainly two types: line focusing and point focusing. Line focusing means that parallel light rays are focused into a line; point focus means that parallel light rays are focused into a point shape. [0003] Condensatio...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more