US 12,111,080 B2
Heat-storage medium conveying system for solar-thermal power plant
Zhiyong Yu, Hangzhou (CN); Yaping Tang, Hangzhou (CN); Hui Zhou, Hangzhou (CN); Kai Zhou, Hangzhou (CN); Wenjian Bi, Hangzhou (CN); Feng Sun, Hangzhou (CN); Juan Tang, Hangzhou (CN); and Guokai Tong, Hangzhou (CN)
Assigned to Zhejiang Cosin Solar Technology Co., Ltd., Hangzhou (CN)
Appl. No. 17/763,202
Filed by ZHEJIANG COSIN SOLAR TECHNOLOGY CO., LTD., Hangzhou (CN)
PCT Filed Sep. 22, 2020, PCT No. PCT/CN2020/116730
§ 371(c)(1), (2) Date Mar. 24, 2022,
PCT Pub. No. WO2021/057700, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 201910929445.0 (CN), filed on Sep. 27, 2019; and application No. 202010733930.3 (CN), filed on Jul. 27, 2020.
Prior Publication US 2022/0341629 A1, Oct. 27, 2022
Int. Cl. F24S 60/10 (2018.01); F17D 1/14 (2006.01); F24S 80/30 (2018.01); F28D 20/02 (2006.01); F28D 20/00 (2006.01)
CPC F24S 60/10 (2018.05) [F17D 1/14 (2013.01); F24S 80/30 (2018.05); F28D 20/02 (2013.01); F28D 20/028 (2013.01); F28D 2020/0047 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A heat-storage-medium conveying system for a solar-thermal power plant, comprising a high-level tank subsystem, the high-level tank subsystem comprising a high-level tank used to store the heat-storage-medium, wherein the system further comprises a heat-storage-medium transport subsystem;
the high-level tank subsystem is connected with the heat-storage-medium transport subsystem;
the heat-storage-medium transport subsystem comprises a low-level tank; a mounting height of the low-level tank is lower than that of the high-level tank; a volume of the low-level tank is smaller than a volume of the high-level tank; the heat-storage-medium may enter the low-level tank from the high-level tank partially or completely by its own gravity; the low-level tank is provided with a conveying pump, and the heat-storage-medium is pumped out of the low-level tank through the conveying pump; and
wherein the heat-storage-medium transport subsystem further comprises an uninterrupted compressed gas source;
the uninterrupted compressed gas source is communicated with a gas-phase space of the low-level tank through a gas source pipeline, and the gas source pipeline forms a first pipe path;
the uninterrupted compressed gas source increases a gas pressure in the low-level tank to decrease a liquid level of the heat-storage-medium in the low-level tank by inflating the low-level tank.