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Scheme and cost of refrigeration equipment for a - 40 ℃ medical freezer

Scheme and cost of refrigeration equipment for a - 40 ℃ medical freezer

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1、 Selection of refrigeration compressor unit in the customized scheme of - 40 ℃ medical freezer

 

At present, the customization scheme of - 40 ℃ medical freezer in China generally adopts two-stage compression or cascade refrigeration (binary cascade refrigeration and ternary cascade refrigeration) system, which can meet the requirements of - 30 ℃ ~ - 45 ℃, 45 ℃ ~ - 80 ℃ and medical cold storage.

 

Here we will focus on the construction of a - 40 ℃ medical freezer refrigeration equipment scheme in the two-stage compressor.

When the evaporation temperature of refrigeration system is required to be controlled below - 30 ~ - 40 ℃, the compression ratio and pressure difference of single-stage compressor are limited. The evaporation temperature of - 65 ~ - 75 ℃ can be obtained by using two-stage compressor and low-temperature refrigerant, so the design of - 40 ℃ medical freezer can naturally achieve good results

 

2、 On the selection of - 40 ℃ medical preservation system

 

Polyurethane with good thermal conductivity should be the best thermal insulation material in the market. When the density of rigid polyurethane is 40 ± 2kg / m3, the thermal conductivity is only 0.018 ~ 0.024w / (m.k), which is about half of EPS, which is the lowest among all thermal insulation materials.

In addition, rigid polyurethane has the advantages of moisture-proof, water-proof, flame-retardant and high-temperature resistance, strong deformation resistance and so on

 

According to the previous critical value of thermal insulation performance of - 40 ℃ medical freezer, it is recommended that the polyurethane thermal insulation material should not be less than 300 mm.

 

3、 Analysis of standby system in the customized scheme of - 40 ℃ medical freezer

The following abstract is from the National Drug Administration

(1) the - 40 ℃ medical freezer suitable for its business scale and variety should be equipped with two sets of independent operation systems of - 40 ℃ medical freezer;

(2) It is used for automatic temperature monitoring, display, recording, control and alarm of - 40 ℃ medical freezer;

(3) Standby generator set or double circuit power supply system of refrigeration equipment in - 40 ℃ medical freezer;

(4) Drugs with special low temperature requirements shall be equipped with facilities and equipment of - 40 ℃ medical freezer meeting the storage requirements;

(5) In the transportation of biological stem cells, refrigerated trucks and on-board refrigerators or incubators should be equipped.

 

To build a - 40 ℃ medical freezer refrigeration equipment cost needs to be customized according to the size (length, width, height) to configure the appropriate equipment, cost accounting, welcome to call to explain your needs.

  Construction of a - 40 ℃ medical freezer site map

     

 

 

 

 


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