Introduction to the results:

This project is the first domestic comprehensive experimental platform for maritime transportation of refrigerated containers with frequency conversion heat pump. It can simulate and simulate various sea conditions such as temperature, humidity, and wind speed during ocean transportation of refrigerated containers in real time, and achieve 0%.~10kW stepless adjustment.

A mathematical model of heat and mass transfer in a refrigerated container is established to simulate the temperature field, humidity field and velocity field distribution inside and outside the container; the dynamic heat load is quantitatively described, and according to the change of the dynamic heat load, the scroll refrigeration compressor, condenser fan and air cooler are controlled by frequency conversion and stepless adjustment of their respective rotational speeds, so that the refrigerant flow and air supply volume match the refrigeration capacity required by the refrigerated container, realizing a frequency conversion energy saving of 12.5%.

A comprehensive inspection and real-time monitoring system for refrigerated containers has been developed, which can detect and monitor refrigerated containers in accordance with GB, ISO and ATP standards, ensuring the safety of maritime transportation of ships refrigerated containers.

A vacuum destruction valve for ultra-low temperature refrigerated containers has been developed to avoid major cargo damage accidents caused by excessive vacuum in the refrigerated container when transporting at ultra-low temperatures <-35℃. This is the first in China.

Technical advantages:

A TCL-VIP high vacuum insulation board with light weight, thin thickness, high strength and ultra-low thermal conductivity has been developed. After being used in refrigerators, it can increase the amount of heat leakage by 7% when it is used in refrigerators.~10% box capacity, when the box thickness is the same, heat leakage can be reduced by 26.17%, and insulation can be extended by 2~4h。This application technology fills a domestic gap. It has completed the research on key technologies for the development of 8000-10000 TEU ultra-large container ships by the Commission of Science, Technology and Industry for National Defense-"Research on Dynamic Thermal Load of In-cabin Refrigerated Containers and In-cabin Ventilation System", which is the first in China. The research results of vacuum insulation panels have been successfully applied to U.S. military containers and Alaskan container mobile houses, playing an important role in the transportation of U.S. military supplies, scientific inspections in severe cold areas, and mineral mining.

Application prospects and fields:

The implementation process of this project has achieved the integration of industry, academia and research, and the research results have been extended to Yangzhou Tongli Refrigerated Container Co., Ltd., Shanghai CIMC Refrigerated Container Co., Ltd., Xiamen Gaote High-tech Materials Co., Ltd. and Qingdao Maersk Refrigerated Container Co., Ltd. 

Patent status:

1.PU vacuum insulation board and its preparation method. ZL200910048429.7.;

2. Device and method for rapid testing of thermal conductivity of vacuum insulation board. Authorization number: 201010517997.X.;

3. An intermittent high-efficiency vacuum microwave drying device for processing vacuum insulation board core materials. Authorization number: 201120277092.X.;

4. A reduced-level reverse-gas permeation vacuum insulation panel. Authorization number: ZL2011 2 0078466.5;

5. Rapid testing device for thermal conductivity of vacuum insulation board. Authorization number: ZL201020574951.7.;

6. A kind of vacuum insulation board with micro holes and holes.  Authorization number: ZL200920069499.6.;

7. A vacuum insulation panel for water heaters.  Authorization number: 200720073780.8.;

8. A modular marine assembly cold storage.  Authorization number: ZL200720073248.6.;

9. A getter device for vacuum insulation panels and a structure added to the vacuum insulation panels.

Authorization number: ZL2006.20049040.6.;

10. High vacuum packaging machine with preheating device.  Authorization number: ZL2006.20048743.7.