In order to ensure the quality of indoor air and equip the indoor space with a concentrated new air system, the host of the supply of fresh air and processed the fresh air is called a fresh air gas exchange machine.It is used to remove fresh air through the dust removal, dehumidification (or humidification), cooling (or heating), etc., and replace the original air indoor air when entering the indoor space after entering the indoor space.The temperature control system of the fresh air gas exchange machine is composed of a proportional integral temperature controller, the temperature sensor installed in the delivery and the electric regulating valve. Its equipment is a kind of air regulating equipment that provides fresh air.Reaching constant temperature and humidity or simply provide fresh air, dust removal, dehumidification (or humidification), cooling (or heating) functions can be determined according to the needs of the use environment, the more complete the function, the higher the cost.
The role of the controller is to compare the air supply temperature detected by the temperature sensor placed in the wind channel to the temperature controller and the temperature setting of the controller. According to the result of the PI operation, the temperature controller is adjusted by the electric controller to the electric adjustment.A signal of a valve on/off the valve, so that the air delivery temperature is maintained in the required range.The electric regulating valve and fan chain of the fresh air firing machine to ensure that the wind valve is also closed at the same time when the power supply of the fan is cut off. The electric regulating valve can also be connected with the fan. When the fan is cut off, the electric regulating valve is turned off.The two chain line connection methods in the figure above are used for power -off and reset equipment and power control equipment. Users can choose according to the specific circumstances.When the cooling is needed, the temperature controller is placed in the refrigeration mode. When the temperature measured by the sensor is reached or lower than the set temperature, the temperature controller gives the electric valve to a valve signal, and the control valve contact of the electric valve is turned on to close the valve.If the measuring temperature does not reach the set temperature, the temperature controller gives an electric valve to open a valve signal, and the electric valve open valve connection connecting the valve to open it; when heating, the temperature controller is placed in the heating mode. When the temperature measured by the sensor measurementWhen or higher than the setting temperature, the temperature controller gives an electric valve to a valve signal, and the control valves of the electric valve are turned off to close the valve.If the measurement temperature does not reach the set temperature, the temperature controller gives an electric valve to open a valve signal, and the electric valve open valve connection connecting the valve to open it.When the filter is blocked or when it exceeds the specified value, the switch signal given by the pressure difference switch.The control of the fresh air of the air -conditioning air -conditioning air -changing machine of the copper pipe includes the control temperature control, the relative humidity control of the air supply, the anti -freezing control, the CO2 concentration control, and the various interlock content.When the temperature of the tray is too low, the low -temperature anti -freezer switch gives the switch signal, and the wind turbine stops running to prevent frozen tubes from cracking.The control of the fresh air replacement of the copper pipe cooler, including: air supply temperature control, relative humidity control, anti -freezing control, CO2 concentration control, and various interlock content.
The above is the application of fresh air air -changing machine. I want to know more about the clearance of the relevant air -conditioning terminal series of product knowledge ——