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Integrated tower solar thermal power generation unit employing quicksand to store and transfer heat

A tower type solar energy and power generation device technology, applied in the direction of solar thermal power generation, solar thermal devices, solar collectors in specific environments, etc. Cost, wide source of raw materials, effect of reducing heat loss

Inactive Publication Date: 2013-02-06
张建城
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

From these assumptions, it is not difficult to see that the method of directly heating the scattered solid particles through solar radiation is actually very impractical, especially the window design of the tower receiver is very small, and it is very difficult to gather the light to a small enough size. And because the inherent heat loss of the receiver opening itself is very large, if the heat loss is only exacerbated by the indirect conversion into high-temperature air by heating the solid particles, it will be difficult to achieve the design goals with these methods

Method used

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  • Integrated tower solar thermal power generation unit employing quicksand to store and transfer heat

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Embodiment Construction

[0014] The heliostat concentrating array 1 of the integrated tower-type solar thermal power generation device that adopts quicksand heat transfer and heat storage is arranged around the solar receiving tower body 2, and the solar receiver 3 is arranged on the circumference or one side of the top of the tower body; using quicksand 4 is used as heat transfer and heat storage medium. The quicksand 4 enters the solar receiver 3 through the quicksand deflector 5, and the quicksand 4 heated to 500 to 900 degrees by solar radiation enters the quicksand heat storage chamber 6, and the quicksand heat storage chamber 6 exits Set the control valve to control the downward flow speed of quicksand. The quicksand 4 enters the steam generator 7, then enters the sand storage chamber 8 through the steam generator 7, and the water vapor separation device 12 is arranged on the steam generator 7; the quicksand 4 enters the sand storage chamber 8 after passing through the steam generator 7, and pass...

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Abstract

The invention discloses an integrated tower solar thermal power generation unit employing quicksand to store and transfer heat, and a tower solar thermal power generation unit built by 'quicksand' instead of conduction oil, fused salt or gas and the like to transfer and store heat. The device adopts fluid characteristics of the 'quicksand', and has the characteristics of thermostability, zero pressure, small thermal resistance and low cost of the 'quicksand'; and superheated steam is generated by sensibile heat and high-temperature air carried by the quicksand when flowing through a vapor generator to push a steam turbine generator to generate electricity, therefore, the construction cost of a tower solar thermal power generation unit is reduced by integral design, and a technological base is established for final implementation of parity power generation. The device belongs to the technical field of solar thermal electric power generation.

Description

technical field [0001] The invention relates to a tower-type solar thermal power generation device established by using "quick sand" instead of heat-transfer oil, molten salt or gas and other heat-transfer and heat-storage working fluids. The device makes full use of the fluid characteristics of "quick sand", taking into account the characteristics of "quick sand", such as high temperature resistance, no pressure, small thermal resistance and low cost, and reduces the construction cost of the tower solar thermal power generation device through an integrated design. Power generation lays the technical foundation. The device belongs to the technical field of solar thermal power generation. Background technique [0002] There are four main types of solar thermal power generation technology, and the trough solar thermal power generation technology is the most widely used at present. Thermal power generation technology has also made great progress. Especially with the successf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G6/06F24J2/34F22B1/00F22G1/16
CPCY02E10/46F24S20/20F24S60/00F24S60/30
Inventor 张建城
Owner 张建城
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