The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2015
Filed:
Jun. 18, 2009
Shuyan He, Beijing, CN;
Huaiming Ju, Beijing, CN;
Xinxin Wu, Beijing, CN;
Xiaowei Luo, Beijing, CN;
Zhengming Zhang, Beijing, CN;
Zongxin Wu, Beijing, CN;
Zuoyi Zhang, Beijing, CN;
Shuyan He, Beijing, CN;
Huaiming Ju, Beijing, CN;
Xinxin Wu, Beijing, CN;
Xiaowei Luo, Beijing, CN;
Zhengming Zhang, Beijing, CN;
Zongxin Wu, Beijing, CN;
Zuoyi Zhang, Beijing, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
Abstract
A steam generator includes a heat exchanger, a liquid header and a steam header. The heat exchanger is assembled by several heat exchanging subassemblies with the same structure. The heat exchanging subassembly includes a spiral heat transmission pipe bundle, a central cylinder and a sleeve. The spiral heat transmission pipes with different radii are concentrically and spirally arranged in an annular space between the central cylinder and the sleeve, to form one or more concentric heat exchanging pillar surfaces. One end of the liquid header is connected with a main water feeding pipe, and the other end of the liquid header is connected with the spiral heat transmission pipe bundle. One end of the steam header is connected with a main steam pipe, and the other end of the steam header is connected with the spiral heat transmission pipe bundle.