Cooling at low temperatures and enhanced heat transfer
1. Regulating crystal formation using strong electric fields and optimizing low-temperature protectants for biological cryopreservation.
2. Developing high-efficiency new six-way valves to improve fluid control efficiency and system reliability.
3. New types of low-
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Key innovations
Innovation points: In-depth research on crystal melting mechanisms; improved performance of new valves; precise temperature-controlled freeze-drying; high-efficiency heat pump-based wastewater concentration, resulting in significant environmental protection and energy savings.
Potential economic benefits
High energy efficiency reduces wastewater discharge and treatment costs, enables resource recovery, and has broad applicability with great market potential.
Potential climate benefits
1. It promotes optimization in crystallization and freezing technologies, which may improve material preparation and biological preservation efficiency, thereby indirectly reducing energy consumption and carbon emissions.
2. It enhances the efficiency of fluid control systems, reduces energy use, and lowers carbon emissions from industrial pumping and hydraulic equipment.
3. It optimizes energy consumption in freeze-drying, improves product preservation efficiency, reduces losses, and lowers production and treatment
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Taoren
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Solution details
1、National Natural Science Foundation project: “Study on the Influence of Strong Electric Fields on Solution Crystallization and Melting Processes”
Through experiments, the effects of solution concentration, different nucleation mechanisms, seed crystal quantity, and structure on crystal shape were investigated. The impact of low-temperature protectant solutions on ice crystal shape and the freezing properties during ice crystal growth were studied. Research was also conducted on the freezing of high-concentration low-temperature protectants, as well as the quasi-vitrification process of vitrified solutions and changes in solutions during reheating and melting.
2. Key project of the Ministry of Education: “Development of New Type of Telescopic Six-Way Valves”
Based on the characteristics of six-way directional valves, a performance testing system for these valves was designed and built. Thirty-two#Turbine oil was selected as the working medium, and resistance characteristic tests, stability, and reliability tests were carried out under various operating conditions on six-way directional valves of 80JH-33 and 40JH-33 sizes. The entire device consists of three main parts: a power oil supply and oil temperature heating system, a control system, and a measurement system.
3、A new type of low-temperature freeze-dryer was developed
This low-temperature freeze-dryer primarily addresses three issues: adjustable cooling rates, accurate temperature control, and a wide cooling range. Vitrification is closely related to the cooling rate and final freezing temperature, while accurate temperature control is essential to prevent reverse vitrification.
4. A general-purpose evaporative concentration device with high energy efficiency.
A general evaporative concentration system based on the heat pump principle was designed, constructed, and operated for treating various low-concentration wastewaters and related concentration processes. Pilot test results showed a system COP of 15.1, meeting the required relative energy efficiency ratio of 5–10 specified in the contract. Relevant calculation and control software were also developed. Since this system produces concentrated liquid and distilled water, it significantly reduces wastewater discharge and water pollution, offering excellent environmental benefits. It can also be used as pretreatment equipment for evaporation operations in industries such as chemicals and food, as well as for seawater desalination. Unlike chemical treatment methods for wastewater that require tailored processes for specific substances, this system has high versatility and can be adapted for different wastewater treatments by adjusting operational parameters.
Last updated
06:07:00, May 09, 2026
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