Concentrated solar power generation system

Patent metadata

Field	Value
Publication number	US-11815291-B2
Application number	US-202017106154-A
Country	US
Kind code	B2
Filing date	Nov 29, 2020
Priority date	Nov 29, 2019
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

A concentrated solar power generation system includes a movable platform having a groove, a Fresnel lens located in the groove of the movable platform, a header located below the Fresnel lens, a plurality of heat collection tubes arranged in a circular array, a reflector with a tapered surface, and a support base. The header has a water circulation pipe, an inlet pipe and an outlet pipe. The inlet pipe and the outlet pipe each are communicated to the water circulation pipe. A lower end of each of the heat collection tubes is fixed on the support seat, and an upper end of each of the heat collection tubes contacts the water circulation pipe. The reflector is mounted on the support base and located in a space enclosed by the heat collection tubes.

First claim

What is claimed is:

1. A concentrated solar power generation system, comprising:
a movable platform having a groove;
a Fresnel lens located in the groove of the movable platform;
a header located below the Fresnel lens;
a plurality of heat collection tubes arranged in a circular array;
a reflector with a tapered surface; and
a support base;
wherein the header has a water circulation pipe, an inlet pipe and an outlet pipe;
the inlet pipe and the outlet pipe each are communicated to the water circulation pipe;
a lower end of each of the heat collection tubes is fixed on a support seat, and an upper end of each of the heat collection tubes is in contact with the water circulation pipe; the reflector is mounted on the support base and located in a space enclosed by the heat collection tubes; and a light passes through the Fresnel lens and shines on the reflector;
wherein the header comprises:
a shell;
a header base;
an inner liner;
a thermal insulation layer;
an upper fixed seat; and
a lower fixed seat;
wherein the inner linear of the header comprises the water circulation pipe, the inlet pipe, the outlet pipe, and a plurality of heat conduction blocks which are integrally formed; the inlet pipe and the outlet pipe are symmetrically arranged and are exposed outside the shell; the inlet pipe and the outlet pipe each are communicated to an interior of the water circulation pipe; the water circulation pipe is ring-shaped, and the heat conduction blocks are arranged in a circular array; the heat conduction blocks penetrate through the water circulation pipe or extend into the interior of the water circulation pipe; a bottom of each of the heat conduction blocks has an insert hole, and an upper end of each of the heat collection tubes is inserted into the insert hole of respective heat conduction block; and
the upper fixed seat and the lower fixed seat are fixed together to form a through hole through which the water circulation pipe passes; the water circulation pipe passes through the upper fixed seat and the lower fixed seat; the lower fixed seat is fixed in the shell, and the thermal insulation layer fills an inside of the shell; the thermal insulation layer wraps the water circulation pipe, the upper fixed seat and the lower fixed seat; the shell has an annular cavity, and a bottom of the shell is fixed on the header base; and a bottom of the header base is provided with a plurality of openings through which the heat collection tubes pass.

2. The concentrated solar power generation system of claim 1 , further comprising:
a lens holder; and
a lens cover;
wherein the lens holder is placed in the groove of the movable platform and fixed on the movable platform; the lens holder is hollow and is provided with an annular groove; the Fresnel lens is placed in the annular groove of the lens holder; and the lens cover covers an edge of the Fresnel lens and the lens holder, and is fixed to the movable platform.

3. The concentrated solar power generation system of claim 1 , further comprising:
a lower fixing block fixed on the support base; and
an upper fixing block fixed to the lower fixing block;
wherein a tapered groove is formed by the upper fixing block and the lower fixing block, and a lower end of the reflector is inserted into the tapered groove.

4. The concentrated solar power generation system of claim 1 , further comprising:
a seat; and
a plurality of bearing rods spaced apart;
wherein the plurality of bearing rods comprises a first bearing rod, a second bearing rod and a third bearing rod;
the seat is located below the support base, and the support base is fixed on the seat; one end of the third bearing rod is connected to the seat, and the other end of the third bearing rod is connected to the support seat; one end of the second bearing rod is connected to the support base, and the other end of the second bearing rod is connected to the header base; and one end of the first bearing rod is connected to the header base, and the other end of the first bearing rod is spherically hinged on the movable platform.

5. The concentrated solar power generation system of claim 1 , further comprising:
a waste heat recovery device; and
a turbine generator;
wherein the outlet pipe is connected to the turbine generator; the waste heat recovery device has an input port and an output port; the turbine generator has a waste heat port; and the input port of the waste heat recovery device is communicated to the waste heat port of the turbine generator, and the output port of the waste heat recovery device is communicated to the inlet pipe.

6. A concentrated solar power generation system comprising:
a movable platform having a groove;
a Fresnel lens located in the groove of the movable platform;
a header located below the Fresnel lens;
a plurality of heat collection tubes arranged in a circular array;
a reflector with a tapered surface;
a support base;
a lifting mechanism;
an upper end cover and a lower end cover which are fixed together;
an upper cage and a lower cage which are fixed together; and
a ball head;
wherein the header has a water circulation pipe, an inlet pipe and an outlet pipe; the inlet pipe and the outlet pipe each are communicated to the water circulation pipe; a lower end of each of the heat collection tubes is fixed on a support seat, and an upper end of each of the heat collection tubes is in contact with the water circulation pipe; the reflector is mounted on the support base and located in a space enclosed by the heat collection tubes; and a light passes through the Fresnel lens and shines on the reflector; and
the ball head is fixed on an output end of the lifting mechanism, and is placed in a first spherical cavity formed by the upper cage and the lower cage; a plurality of steel balls are arranged in the upper cage and the lower cage; the upper cage and the lower cage are placed in a second spherical cavity formed by the upper end cover and the lower end cover; the steel balls are in contact with an inner wall of the second spherical cavity, and the ball head is in contact with an inner wall of the first spherical cavity; the ball head is in contact with the steel balls; and the upper end cover is fixed on the movable platform.

7. The concentrated solar power generation system of claim 6 , wherein the lifting mechanism is a ball screw, and the ball head is fixed on an output end of the ball screw; and a center of the Fresnel lens is provided with a rotary cleaning needle.

8. The concentrated solar power generation system of claim 6 , wherein the lifting mechanism is a hydraulic cylinder comprising:
a cylinder seat;
a cylinder tube fixed on the cylinder seat;
a piston rod arranged in the cylinder tube;
a cylinder cap fixed at an end of the cylinder tube;
a guide sleeve fixed in the cylinder tube; and
a piston fixed on the piston rod;
wherein a fluid inlet and a fluid outlet are provided on the cylinder tube, and the ball head is fixed at an end of the piston rod.

9. The concentrated solar power generation system of claim 8 , further comprising:
a magnetostrictive displacement sensor;
a movable magnetic ring; and
a connecting frame;
wherein one end of the magnetostrictive displacement sensor is fixed on the cylinder base, and the other end of the magnetostrictive displacement sensor is fixed on the cylinder cap; and one end of the connecting frame is fixed on the piston rod, and the other end of the connecting frame is connected to the movable magnetic ring.

Assignees

• Univ Guangdong Polytechnic Normal
• Guangzhou Changren Industrial Tech Co Ltd
• Guangdong Nacre Hydraulic Co Ltd
• Univ Central South

Inventors

• Yang Yong
• Zhao Chongjie
• Huang Fu
• Luo Shaoming
• Zhang Guoquan
• Li Junjie
• Liu Xiayun
• Yao Yulong
• Fu Wei
• Yang Jian

Classifications

• F03G6/06 Primary

  with solar energy concentrating means · CPC title

• F24S10/72 Primary

  the tubular conduits being integrated in a block; the tubular conduits touching each other · CPC title

• F24S23/31

  having discontinuous faces, e.g. Fresnel lenses · CPC title

• F24S30/42

  with only one rotation axis · CPC title

• F24S10/70 Primary

  the working fluids being conveyed through tubular absorbing conduits · CPC title