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Concentration method of graduate freezing interface

A progressive freezing and interface technology, applied in the fields of climate change adaptation, food science, etc., can solve the problems of non-commercial application, difficulty in large-scale application, and limitation of concentration speed of the interface progressive freeze concentration method, and achieve high-efficiency cold recovery, easy Automatic control, the effect of reducing operating costs

Inactive Publication Date: 2006-10-25
QINGDAO UNIV
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Problems solved by technology

However, due to the small solid-liquid interface of the interfacial progressive freezing method, the cold transfer process after freezing is slow, and the concentration rate is limited, making it difficult to apply on a large scale; in addition, removing the ice layer from the solid wall is also a technical problem
To date, interfacial progressive freeze concentration has not been used commercially

Method used

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  • Concentration method of graduate freezing interface
  • Concentration method of graduate freezing interface
  • Concentration method of graduate freezing interface

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Embodiment 1

[0025] Embodiment 1: A kind of equipment device that realizes the method of the present invention, its main components include the heat exchanger 11 in the high-level freezing water tank 1, the four-way valve 9, the compressor 8, the heat exchanger in the low-level freezing water tank 21 20. The heat pump cycle subsystem composed of dry filters 10, 18, throttling expansion valve 12 and connecting pipes; consisting of heat exchanger 11, compressor 16, condenser 6, and dry filter 5 in the high-level freezing water tank 1 , throttling expansion valve 4, etc.; the auxiliary refrigeration subsystem composed of feed water solution pump 23, feed water solution cooler 25, 28 and related connecting pipes; feed water solution subsystem composed of high and low freezing water tanks Concentrated solution delivery and discharge subsystem composed of solution discharge valves 14, 26, concentrated solution water tank 24 and related connecting pipelines; melted water discharge valves 15, 27 of...

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Abstract

The present invention relates to a method capable of utilizing closed heat pump circulation technique to implement high-effective energy-saving interfacial progressive freeze concentration. Said method includes 7 working steps of feeding aqueous solution, concentrated solution transfer and discharge, thawy water transfer and discharge, washing ice layer, heat pump circulation, auxiliary refrigeration and central control, and includes a system device formed from 7 subsystems and two icing water tanks which are communicated to implement aqueous solution interfacial progressive freeze concentration.

Description

Technical field: [0001] The patent of the present invention relates to a freeze concentration method, especially a low-cost, high-efficiency and energy-saving interfacial progressive freeze concentration method using closed heat pump cycle technology. This method is especially suitable for the concentration process of heat-sensitive or volatile-containing aqueous solutions. Such as the concentration process of traditional Chinese medicine water and fruit and vegetable juice. technical background: [0002] The concentration process is one of the important processing techniques for aqueous solutions such as Chinese medicinal water and fruit and vegetable juices. Only when the concentration process is completed can Chinese medicinal water and fruit and vegetable juices be formed into products or enter the next process. Aqueous solutions such as traditional Chinese medicine water and fruit and vegetable juices are heat-sensitive substances, and often contain volatile components ...

Claims

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Application Information

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IPC IPC(8): A23L2/12
CPCY02A40/963
Inventor 田小亮孙晖
Owner QINGDAO UNIV
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