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:
Jan. 26, 2021
Filed:
Mar. 28, 2019
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, CN;
Maoqiong Gong, Beijing, CN;
Yanxing Zhao, Beijing, CN;
Hao Guo, Beijing, CN;
Jun Shen, Beijing, CN;
Xueqiang Dong, Beijing, CN;
Abstract
A low-temperature quick-freezing freeze-drying system provided by the invention includes: a compressor unit, a first heat exchanger, an air cooler, a second heat exchanger, a throttling element, a third heat exchanger, a circulating fan, a drying chamber, a third valve, a fourth valve and connecting pipelines, and the above elements form a refrigeration circulation loop, a quick freezing/freeze-drying circulation loop, and a desorption drying circulation loop, thereby realizing the low-temperature quick-freezing and freeze-drying of materials. The invention adopts the heat exchangers with a cold storage function, so that the refrigeration capacity of the compressor is stored and used intensively to achieve rapid cooling of the materials.