Bio artificial climate chamberTemperature and humidity control is the core to ensure stable and reliable biological experiments, tissue culture, seedling cultivation, and strain cultivation. The commonly used control methods mainly include active temperature control and active humidity control, combined with reasonable airflow and insulation design, to achieve high-precision, uniform and stable environmental parameters.

1、 Temperature control methods

Refrigeration and cooling

Adopting a compressor refrigeration system and circulating cooling through an evaporator

Cooperate with frequency conversion control to achieve small amplitude and high-precision temperature regulation

High temperature experimental areas can be equipped with air or water cooling to enhance heat dissipation

Heating and warming up

Commonly used electric heating tubes, fin heaters, PTC heaters

Partition heating to avoid local overheating

Cooperate with PID regulation to achieve constant temperature control

Temperature uniformity optimization

Adopting a top air supply and bottom return air duct design

Reasonably arrange fans to ensure indoor temperature uniformity of ≤± 0.5 ℃ to ± 1 ℃

The wall is made of insulated polyurethane board to reduce external temperature interference

2、 Humidity control methods

1. Humidification method

Ultrasonic humidification: fast effect, fine particles, suitable for most biological experiments

High pressure micro fog humidification: finer mist droplets, less likely to accumulate water or condense

Wet film humidification: gentle and fog free, suitable for cultivation scenarios that are sensitive to humidity fluctuations

Steam humidification: precise humidity control, suitable for low temperature and high humidity working conditions

2. Dehumidification method

Refrigeration and dehumidification: by reducing the air temperature to condense water vapor, commonly used

Rotary dehumidification: capable of achieving low-temperature and low humidity environments, meeting special experimental needs

Concentrated discharge of condensate water to avoid indoor water accumulation and mold growth

3、 Coordinated control strategy for temperature and humidity

Real time data collection using integrated temperature and humidity sensors

Perform PID automatic adjustment through PLC or controller

Control temperature first, then humidity to avoid mutual interference between temperature and humidity

Set reasonable start stop hysteresis to prevent frequent start stop of equipment

Turn on timed ventilation during long-term operation to balance indoor air and humidity

4、 Common safeguard measures

Install multiple sets of sensors indoors to avoid single point errors

Installing filtering devices in air ducts to reduce pollution

Equipped with over temperature and over humidity alarm and automatic protection functions

Regularly calibrate sensors and clean evaporators to ensure control accuracy