Note:

1. The cooling capacity is measured under the following temperature conditions: the refrigerant is alcohol; The inlet/outlet temperature of the cooling water is 32/37 ℃.

2. Scope of work: The outlet temperature of the cooling water is between 22 ℃ and 37 ℃, and the inlet temperature difference of the cooling water is between 3.5 ℃ and 10 ℃

The outlet temperature of the frozen liquid is -55 ℃ to -110 ℃, and the temperature difference between the inlet and outlet of the frozen liquid is 2.5 ℃ to 5 ℃.

3. Paired stainless steel wire connections are provided at the factory for the inlet and outlet of the refrigerant, and the refrigerant (alcohol) is provided by the user.

4. If there are any changes to the above specifications without prior notice, this will help our company to bring the latest technological achievements to customers at any time.

The company has independent intellectual property rights for a variety of environmentally friendly mixed refrigerants and internationally advanced natural cascade refrigeration technology. It has achieved multiple technological breakthroughs in research and development, design, production, and sales of single compressor ultra-low temperature cascade refrigeration units (-80 ℃~160 ℃), gradually replacing traditional multi compressor cascade refrigeration systems and liquid nitrogen refrigeration methods, and has been maturely applied in various industries.

The refrigeration technology of a natural separation and condensation mixed working fluid self cascade freezer with multiple compressions uses a single compressor and 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 cascade 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 achieving low-temperature refrigeration of -100 ℃. It only adds one self-made liquid separator and reheater, and replaces the existing multi-stage refrigerant of the cascade refrigeration unit with a mixed working fluid. This greatly reduces costs, saves energy, and has a simple system structure and stable operation.

Self stacking three major components
The natural cascade refrigeration unit mainly includes a mixed working fluid, a reheater, an oil separator, and can be assembled into a self cascade ultra-low temperature refrigeration system with standard universal refrigeration components such as a single compressor and condenser, achieving ultra-low temperature refrigeration and freezing functions as low as -160 ℃. It is 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 industries that require ultra-low temperature freezing liquid processes, high and low temperature test chambers, ultra-low temperature refrigerators, low-temperature constant temperature baths, freeze-drying machines, ultra-low temperature cold traps, etc.

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 ℃, -150 ℃, and -165 ℃. 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. It can be widely used in high and low temperature test chambers, low-temperature constant temperature baths, low-temperature refrigerators, freeze-drying machines, low-temperature hydrazine, low-temperature reaction vessels, low-temperature cold storage, natural gas liquefaction, BOG re liquefaction, ultra-low temperature mobile phone screen openers, 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, to provide users with a controlled hot and cold, uniform and constant temperature field source for conducting constant temperature tests or tests on test samples or produced products. It can also be used as a direct heating or cooling source and an auxiliary heating or cooling 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

At the same time, our company can design and manufacture various non-standard refrigeration low-temperature chillers, ultra-low temperature freezers, anti-corrosion freezers, and explosion-proof units according to user requirements. We can provide users with engineering design, equipment production, engineering installation, maintenance and other engineering services.

Welcome to call or write to inquire and negotiate! For more technical parameters and solutions of natural cascade refrigerators, please contact our technical engineer (WeChat ID) to provide you with the best related services.