Development of a high-temperature long-shafted, molten-salt pump for power tower applications

被引：38

作者：

Barth, DL

Pacheco, JE

Kolb, WJ

Rush, EE

机构：

[1] Nagle Pumps Inc, Chicago Hts, IL 60411 USA

[2] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME | 2002年 / 124卷 / 02期

关键词：

Energy storage - Molten materials - Self lubricating bearings - Sump pumps;

D O I：

10.1115/1.1464126

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A new hot-salt pump has been developed for molten-salt solar power tower applications that will reduce the capital cost of the plant, eliminate many of the piping, valve and sump problems associated with the handling of molten salt, and improve the reliability of a critical part of the operating system of the plant. Previous systems required that the pumps in these plants be housed in shallow sunips that ivere gravity fed by the storage tanks. This new pump arrangement will eliminate the sump level-control valves and the potential for overflowing the pump sump vessels. Until now, only cantilever pumps were qualified for hot molten-salt service because no suitable bearing materials had been, tested. This paper describes the successful qualification of a long-shafted pump with salt-lubricated bearings tested for over 5000 hours with nitrate salt at 565degreesC.

引用

页码：170 / 175

页数：6