Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Freeze-drying system

A drying system, vacuum freeze-drying technology, applied in the direction of drying solid materials, drying solid materials without heating, drying, etc., can solve the problems of difficult storage, inconvenient transportation and carrying, difficult to guarantee the demand for liquid nitrogen, etc.

Active Publication Date: 2019-05-17
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Liquid nitrogen is easy to vaporize at room temperature, and it is difficult to store. In addition, in remote areas or in the wild, far away from conventional liquid nitrogen supply points, it is inconvenient to transport and carry, and the demand for liquid nitrogen is even more difficult to guarantee.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Freeze-drying system
  • Freeze-drying system
  • Freeze-drying system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] See figure 1 , Is a schematic structural diagram of a freeze-drying system provided by an embodiment of the present invention, including: a mechanical mixed working fluid cryogenic refrigeration unit (RC) and a vacuum freeze-drying unit (S); among them:

[0057] The mechanical mixed refrigerant cryogenic refrigeration unit (RC) includes: a compressor (1), a heat accumulator (2), an air-cooled condenser (3), a heat recovery heat exchanger (4), and a throttle valve ( 5) and a low-temperature cold accumulator (6), the outlet of the compressor (1) is connected to the inlet of the heat accumulator (2), and the outlet of the heat accumulator (2) is connected to the air-cooled condenser ( 3), the outlet of the air-cooled condenser (3) is connected to the high pressure inlet of the regenerative heat exchanger (4), and the high pressure outlet of the regenerative heat exchanger (4) is connected to the throttle valve The inlet of (5), the outlet of the throttle valve (5) is connecte...

Embodiment 2

[0076] See figure 2 , Is a schematic structural diagram of the freeze-drying system provided in Example 2 of the present invention. The difference between the freeze-drying system provided in Example 1 is that the freeze-drying system provided in Example 2 of the present invention also includes a medium-temperature cold storage device (10), a medium-temperature Carrier refrigerant circulating pump (P3), the first medium temperature flow control valve (V5) and the second medium temperature flow control valve (V6);

[0077] The medium temperature refrigerant carrier outlet of the medium temperature cold storage device (10) is connected to the inlet of the medium temperature refrigerant carrier circulating pump (P3), and the outlet of the medium temperature refrigerant carrier pump (P3) is connected to the first medium temperature flow control The inlet of the valve (V5), the outlet of the first medium temperature flow control valve (V5) is connected to the low-temperature refrigera...

Embodiment 3

[0086] See image 3 , Is a schematic structural diagram of the freeze-drying system provided in Example 3 of the present invention. The difference from the freeze-drying system provided in Example 1 is that the freeze-drying system provided in Example 3 of the present invention also includes a medium temperature cold storage device (10), a medium temperature Carrier refrigerant circulating pump (P3) and the first medium temperature flow control valve (V5);

[0087] The medium temperature refrigerant carrier outlet of the medium temperature cold storage device (10) is connected to the inlet of the medium temperature refrigerant carrier circulating pump (P3), and the outlet of the medium temperature refrigerant carrier pump (P3) is connected to the first medium temperature flow control The inlet of the valve (V5), the outlet of the first medium temperature flow control valve (V5) is connected to the medium temperature refrigerant inlet of the drying chamber (8), and the medium temp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a freeze-drying system. According to the freeze-drying system, a mechanical mixed-working-medium low-temperature refrigeration unit (RC) is used to realize ultralow-temperaturequick-freezing of materials, a vacuum freeze-drying unit (S) is used to realize vacuum freeze-drying of the materials, under the action of the mechanical mixed-working-medium low-temperature refrigeration unit (RC) and the vacuum freeze-drying unit (S), a quick-freezing process can be accelerated, the quality of the quick-frozen materials is improved, the freeze-drying technique period is shortened, and the refrigeration energy consumption is reduced; and meanwhile, the freeze-drying system provided by the invention adopts a cold-and-hot storage mode and a cold-and-hot use mode, the peak-valley electricity price difference of the industrial electricity is utilized so as to start low-temperature refrigerators during the night valley electricity period, cold storage and compression heat replace electric heating to provide heat required in drying and desorption processes, the valley electricity is also utilized, the environment temperature at night is low, the operation efficiency of a refrigeration system is relatively high, and energy-saving and electricity-saving effects are thus realized.

Description

Technical field [0001] The present invention relates to the technical field of freeze-drying food or medicine, in particular to a freeze-drying system. Background technique [0002] The freeze-drying process has been widely used in the processing of food and medicine. There are three stages in the freeze drying process: low temperature quick freezing, sublimation sublimation capture drying, and analytical drying. The conventional freeze-drying process refrigeration method adopts the conventional temperature zone (-40℃~-80℃) refrigeration method as the cold capacity for quick freezing, trap trapping and drying of samples, and heating is also required during the drying process; the entire freeze-drying process, especially It is a production-type freeze-drying process with a long freeze-drying cycle and huge energy consumption. [0003] The ultra-low temperature capture temperature helps to reduce the partial pressure of water vapor, increase the sublimation drying rate, and reduce ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F26B5/06F26B25/00F28D20/02
CPCY02E60/14
Inventor 公茂琼郭浩赵延兴
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com