22 September 2021
China recently marked the milestone of one billion vaccinations against Covid-19 and compressor manufacturer BITZER is playing an important role with major refrigeration projects in Beijing and Wuhan that ensure the stability of vaccines during production and storage.
BITZER China recently provided 12 screw compressors with mechanical capacity control to a vaccine manufacturer in Beijing for the storage of inactivated vaccines. The elevated three-dimensional storage facility measured over 46,000 m³ in volume and 16 metres in height, which is currently the largest domestic inactivated Covid-19 vaccine storage facility in China. In two central storage rooms, the BITZER CSH7593 screw compressors ensure that the temperature of the vaccine storage is kept within the specified range of 2-8℃, with a total cooling capacity of 1,140 kW.
Compact screw compressors ensure the stability of vaccine storage in Beijing
With BITZER screw compressors and special air supply technology, the project can break through the traditional air supply method. As a result, the overall temperature difference of the cold storage can be controlled within the range of 0.5-1℃ at a minimum partial load of 50 per cent. Out of the four skids with three BITZER compressors each, each skid runs in its own refrigeration circuit. Total construction of the project only just 50 days, while the temperature verification was quickly approved and put into operation.
By providing 20 reciprocating compressors and 12 screw compressors through its partners, BITZER China also contributed to a capacity expansion project of the Sinopharm Wuhan Institute of Biological Products in the megacity of Wuhan.
The project is located in Jingang Industrial Park, Jiangxia District, with a total construction area of 141,000 m2. The cold storage for inactivated Covid-19 vaccine storage after production is an important part of the project, with a volume of nearly 20,000 m3. After the project is completed, the annual production capacity will reach one billion doses of vaccines against Covid-19.