High-accuracy automatic non-interval-switching even temperature control method and device

Abstract

The invention discloses high-accuracy automatic non-interval-switching even temperature control method and device. The method comprises the following steps of: (A) starting a refrigeration electromagnetic valve when a temperature is higher than a set temperature; (B) cooling and condensing high-temperature high-pressure refrigerant gas vapor into liquid by a condenser, wherein the high-temperature high-pressure refrigerant gas vapor is generated by a compressor and the condensed liquid is a gas-liquid mixture; (C) starting a heating electromagnetic valve to run a heating system when the temperature is lower than the set temperature; (D) enabling the high-temperature high-pressure refrigerant gas generated by the compressor to enter an evaporator through the heating electromagnetic valve to cool so as to increase the temperature and convert into a gas-liquid mixture; and (E) starting a one-way flow adjusting valve communicated with pipelines of the evaporator and the condenser when thepressure of the evaporator is higher than the pressure of the condenser. The compressor is sequentially connected with the condenser, a liquid storage device, a gas-liquid separator, the refrigeration solenoid valve, a swelling valve and the evaporator and respectively connected with the heating electromagnetic valve, the evaporator and the gas-liquid separator. The invention realizes non-interval real-time temperature control and space even temperature control and achieves the high-accuracy even temperature control effect.

Description

technical field [0001] The present invention relates to the technical field of temperature control of cultivation chambers (boxes), more specifically to a high-precision automatic non-interval switching uniform temperature control method, and also to a high-precision automatic non-interval switching uniform temperature control device, which is suitable for cultivation chambers ( Box) without interval automatic switching and uniform temperature control. Background technique [0002] As an experimental facility, the cultivation room (box) is an indispensable basic condition for biochemical cultivation, tissue cultivation, transgenic breeding, special microorganism cultivation, etc. in hospitals, epidemic prevention departments, agricultural scientific research institutions and biotechnology development institutions. At present, the culture room (box) used in various fields has two systems for heating and cooling. The heating system uses electric heating tubes for heating, and ...

AI Technical Summary

Problems solved by technology

At present, the culture room (box) used in various fields has two systems for heating and cooling. The heating system uses electric heating tubes for heating, and the cooling system uses compressors for cooling. There is a certain time difference between the heating process and the cooling process. The accuracy of temperature control Relatively low (temperature control accuracy, the incubator is generally about ±1.0°C, the culture room is ±2°C-5°C, and it reaches ±10°C when the light is added); in addition, frequent startups are likely to cause compressor failure

The temperature distribution in the currently used culture room (box) is uneven. The temperature difference between the sensor point and the set temperature is about ±0.5°C, and the temperature difference at the point far away from the control point is more than ±2°C. The temperature difference of the general incubator is ±0.5°C. Above 2°C, the temperature difference in the cultivation room is above ±5°C, and the temperature difference is above 5°C when the light and wind circulation is not complete

Due to the low accuracy of the temperature control of the cultivation room (box) currently used, the uneven temperature distribution and frequent failures, etc., seriously affect the experimental results and cannot meet the needs of high-precision scientific experiments, it is necessary to control the temperature of the cultivation room (box) Improve the technical method to improve its accuracy and stability to meet the strict temperature requirements of special cultivation in various fields

Images