Vehicle-mounted vaccine transport case temperature control system and method using latent heat type functional fluid

Abstract

The invention provides a temperature control system and method for a vehicle-mounted vaccine transport case using latent heat type functional fluid, and the system comprises a case body which is installed on a carriage, and a pipe network, a refrigerating unit, a liquid storage tank, a circulating pump, a diaphragm pump, a temperature sensor and a control system which are arranged in the case body. The latent heat type functional fluid in the liquid storage tank exchanges heat with the evaporator and flows into the pipe network through the circulating pump to cool the box body, the latent heat type functional fluid absorbing heat after cooling flows back to the liquid storage tank, and the temperature in the box body is stabilized at a proper temperature through such circulation. According to the vehicle-mounted vaccine transport box, the apparent specific heat capacity of the latent heat type functional fluid is large, the temperature is basically kept constant during phase change, precise temperature control in the box body is achieved, cooling capacity is evenly transmitted into the box body, the problem that an existing vehicle-mounted vaccine transport box cannot effectively store vaccines in long-distance transport is solved, and meanwhile energy consumption is saved.

Description

technical field [0001] The invention relates to the field of biological vaccine storage, in particular to a vehicle-mounted medical vaccine transport box. Background technique [0002] In order to control the epidemic, vaccines are undoubtedly the fastest and most important means. However, vaccines are prone to inactivation due to temperature fluctuations during transportation. Traditional vaccine transport vehicles generally send the cooling capacity of the evaporator to all parts of the compartment through the air supply of the fan, and the output position and area of ​​the cooling capacity are limited, which makes the temperature distribution uneven and fluctuating throughout the compartment; passive refrigeration The transport box uses the latent heat of the phase change cold storage material to keep the temperature low during the storage and transportation process, but the cold storage material that has exhausted the cold storage capacity cannot be replaced in time dur...

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a temperature control system and method for a vehicle-mounted vaccine transport box using a latent heat functional fluid, which can not only avoid energy waste, but also rely on the large apparent specific heat capacity of the latent heat functional fluid, and keep the temperature basically constant during phase transition , to achieve precise temperature control inside the box and evenly transfer the cold energy to the inside of the box, which solves the problem that the existing vehicle-mounted vaccine transport box cannot effectively store vaccines during long-distance transportation and can replace different latent heat functions according to different storage temperature conditions Fluid, to ensure a car with multiple uses

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