The present application provides a primary reflector in a solar collection system. The primary reflector includes a first reflective section that can reflect solar rays onto a first focal line, a second reflective section on the left side of the first reflective section, and a third reflective secti
The present application provides a primary reflector in a solar collection system. The primary reflector includes a first reflective section that can reflect solar rays onto a first focal line, a second reflective section on the left side of the first reflective section, and a third reflective section on the right side of the first reflective section. The second reflective section can reflect solar rays to the right side of the first focal line. The third reflective section can reflect solar rays to the left side of the first focal line.
대표청구항▼
1. A solar collection system comprising: a receiver, wherein the receiver has the shape of a tube;a primary reflector comprising a first reflective section, a second reflective section on the left side of the first reflective section, a second reflective section on the left side of the first reflect
1. A solar collection system comprising: a receiver, wherein the receiver has the shape of a tube;a primary reflector comprising a first reflective section, a second reflective section on the left side of the first reflective section, a second reflective section on the left side of the first reflective section, and a third reflective section on the right side of the first reflective section, wherein the first reflective section of the primary reflector is configured to reflect solar rays to a first focal line on the receiver positioned at or near the axis of the tube, wherein the second reflective section of the primary reflector is configured to reflect solar rays to a second focal line on the right side of the receiver, wherein the third reflective section is configured to reflect solar rays to a third focal line on the left side of secondary receiver; anda secondary reflector configured to reflect the solar rays reflected by the second reflective section and the third reflective section of the primary reflector to the receiver. 2. The solar collection system of claim 1, wherein the receiver is supported by guiding wheels. 3. The solar collection system of claim 1, wherein the receiver comprises a steel tube having a spectral selective coating. 4. The solar collection system of claim 3, wherein the receiver comprises one or more layers glass envelop around the steel tube. 5. The solar collection system of claim 1, wherein the secondary reflector is not in contact with the receiver. 6. The solar collection system of claim 1, wherein the solar rays reflected by the second reflective section to the secondary reflector are in the middle of a zone formed by edge rays, wherein the edge rays are defined by the solar rays that either pass by an edge of the secondary reflector, or strike a spot on the receiver directly or after a reflection wherein the edge rays are tangential to the spot on the receiver. 7. The solar collection system of claim 6, wherein the edge rays comprise a first edge ray and a second edge ray, wherein the zone comprises one of the following zone types: zone 1: the first edge ray strikes a spot on the receiver, wherein the first edge ray is tangential to the spot on the receiver, and the second edge ray strikes the receiver tangentially after being reflected by the right edge portion of the secondary reflector;zone 2: the first edge ray strikes the receiver, wherein the first edge ray is tangential to the spot on the receiver, and the second edge ray strikes the receiver tangentially after being reflected by the left edge portion of the secondary reflector;zone 3: the first edge ray strikes the receiver, wherein the first edge ray is tangential to the spot on the receiver, and the second edge ray strikes the receiver after being reflected by the right edge portion of the secondary reflector; andzone 4: the first edge ray strikes the receiver by the left edge portion of the secondary reflector and the second edge ray strikes the receiver after being reflected by the right edge portion of the secondary reflector. 8. The solar collection system of claim 1, wherein the primary reflector comprises a glass material coated with a layer of silver. 9. The solar collection system of claim 1, wherein the first reflective section of the primary reflector comprises a left part and a right part that are separated by a distance equal to the orthographic projection width of the receiver on the primary reflector. 10. The solar collection system of claim 1, wherein the secondary reflector defines a cavity, wherein an opening of the cavity facing the primary reflector is sealed by a sheet to reduce heat loss. 11. The solar collection system of claim 10, wherein the sheet comprises a glass material or TEFLON™. 12. The solar collection system of claim 1, further comprising a mechanism configured to rotate the primary reflector about a rotating axis, wherein the rotating axis is not coplanar to the primary reflector.
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