The company has developed and launched a single compressor ultra-low temperature cascade freezer, achieving multiple technological breakthroughs and gradually replacing traditional multi compressor cascade freezer systems and liquid nitrogen refrigeration methods. It has been maturely applied in various industries.

The refrigeration technology of the distillation type mixed working fluid self stacking freezer adopts a single ordinary commercial compressor and uses a multi-component mixed working fluid as the refrigerant to achieve low-temperature refrigeration at a minimum of -160 ℃, which exceeds the refrigeration effect of traditional stacked freezers using two or three compressors. Greatly simplifies the structure of the refrigeration system, reduces initial investment costs, decreases system operating energy consumption, and improves system reliability. The refrigeration system of the self stacking refrigeration unit cleverly uses distillation to achieve efficient separation of lubricating oil and mixed working fluid, ensuring that the system does not encounter oil blockage problems in the low-temperature section. Simple structure, stable operation, high energy efficiency, easy to miniaturize, with multiple innovative technologies.

Compared with traditional three-stage cascade refrigerators, self stacking refrigerators are more effective. Compared to the three-stage cascade cycle, this technology reduces the need for two compressors and two plate heat exchangers while only increasing the efficiency of low-temperature refrigeration at -100 ℃

Adding a self-made distillation column and reheater, and replacing the existing multi-stage refrigerant of the cascade refrigeration unit with a mixed working fluid, greatly reduces costs, saves energy, and has a simple system structure and stable operation.

Self stacking three major components

The three major components of self stacking mainly include mixed working fluid, reheater, and distillation column, which can be assembled into a distillation type self stacking ultra-low temperature refrigeration system with standard universal refrigeration components such as a single compressor and condenser, achieving ultra-low temperature refrigeration and freezing function at a minimum of -160 ℃. Widely used in various low-temperature refrigeration equipment due to its advantages of high energy efficiency, ultra-low temperature, simple, reliable and stable system, including ultra-low temperature freezing liquid process, high and low temperature test chambers, ultra-low temperature refrigerators, low-temperature constant temperature baths, freeze-drying machines

Industries such as ultra-low temperature cold traps.

Self stacking freezer

The self repeating freezer consists of one compressor, one set of self repeating three major components, one condenser with fan, one oil separator, and some auxiliary accessories. There are four temperature specifications available for selection: -60 ℃, -80 ℃, -120 ℃, and -150 ℃. Compared with traditional multi-stage cascade refrigeration, it has the advantages of simple structure, low installation cost, high temperature control accuracy, and high efficiency and energy saving. Widely applicable to high and low temperature test chambers, low-temperature constant temperature baths, and low-temperature ice

Box, freeze dryer, low-temperature hydrazine, low-temperature reactor, low-temperature cold storage, natural gas liquefaction, BOG re liquefaction, ultra-low temperature mobile phone screen opener, environmental waste gas recovery, various food quick freezing, aerospace and other fields.

Ultra-low temperature freezer

Mainly used in pharmaceuticals: synthesis, hydrolysis, esterification, etherification and other processes that require temperature control; Chemical industry: distillation and purification, rubber crushing, low-temperature grinding; Metal processing: low-temperature assembly, low-temperature flame sticking; Food: Processing and storage of ultra-low temperature foods such as tuna; Electronics: component environmental testing; Aerospace: Heat sink experiment, component environment simulation test; Environmental Protection: Waste gas condensation and recycling, net emissions. Natural gas liquefaction, BOG re liquefaction; Nuclear industry, etc.

High and low temperature test chamber

Mainly used for the research and development of defense industry, aviation industry, automotive components, electronic parts, plastic industry, food industry, pharmaceutical industry, and related products, as well as testing standards for quality management engineering.

low temperature thermostatic bath

Mainly used in research departments such as petroleum, chemical, electronic instruments, physics, chemistry, bioengineering, medicine and health, life sciences, light industry and food, physical property testing and chemical analysis, as well as in higher education institutions, enterprise quality inspection and production departments. It provides users with a controlled, uniform and constant temperature field source for conducting constant temperature tests on test samples or produced products. It can also be used as a direct heating or cooling and auxiliary heating or cooling system

Heat source or cold source.

Please find attached the relevant comparison chart below:

Refrigeration system diagram of self stacking freezer

Comparison between Self Stacking Refrigerator and Traditional Multi stage Stacking Refrigeration Unit

Comparison between Self Stacking Refrigeration System and Traditional Multi stage Stacking Refrigeration Unit System

If you need more technical parameters and solutions for self stacking refrigerators, please contact our relevant sales personnel to provide you with the best related services.