Clean room workshop air conditioning unit equipment
Clean room pharmaceutical cleanroom air conditioning unit equipment
The air-conditioning system mainly uses the air whose parameters do not meet the process requirements to meet the clean requirements through reasonable airflow organization, and uses surface coolers, heaters, humidifiers, etc. to adjust the temperature and humidity; The return air valve must be in the fully open position; check the cold water and steam...
Text label: clean room workshop, air conditioning unit equipment, design, construction and installation
Clean room workshop air conditioning unit equipment
The air-conditioning system mainly uses the air whose parameters do not meet the process requirements to meet the clean requirements through reasonable airflow organization, and uses surface coolers, heaters, humidifiers, etc. to adjust the temperature and humidity; The return air valve must be in the fully open position; check that the cold water and steam valves should be closed; turn on the power supply of the control cabinet, first start the air supply fan, adjust the fan speed to 900-1200r/min, and then turn on the return air fan, and the fan speed is 600-900r /min; from May to September every year is the season of high temperature and high humidity. In addition to ensuring the cleanliness requirements, the main task of the air conditioner is to cool down and dehumidify, open the inlet and outlet valves of cold water, and use 5-9 ℃ cold water to cool the air through the surface cooler. Dehumidification, when the weather is humid, open and adjust the steam valve, and reduce the relative humidity of the wind through the heater to meet the process requirements; when the outdoor temperature and humidity reach or approach the process requirements, open the large fresh air valve and open the large exhaust valve at the same time to increase The large fresh air ratio reduces the circulating air. When the outdoor temperature and humidity are too different from the process requirements, close the small fresh air valve and close the small exhaust valve at the same time to reduce the exhaust air and save energy.
When replacing the primary and medium-efficiency filters, the fan should be turned off to prevent the outside air from directly entering the air duct to pollute the high-efficiency, primary and medium-efficiency filters. The door panel can be closed after the buffer section of the medium-efficiency filter is completely cleaned; the maintenance of the positive pressure value in the control area, the initial stage of filter replacement, appropriately reduce the frequency of the inverter, reduce the speed of the fan, and gradually increase it later The frequency of the inverter is used to increase the fan speed, and the air supply volume will gradually decrease due to the blockage of the filter; after the production is over, if the pharmaceutical cleanroom is undergoing large-scale disinfection, first close the cold water and steam valves, then turn off the fan switch, and first turn off the peripheral return air supply , and then turn off the return air supply of the 10,000-level air conditioner; when the workshop is not disinfected, turn off the peripheral air conditioner first, adjust the return air of the 10,000-level air conditioner to 200-500r/min, and adjust the motor speed to 500-900r/min to ensure that the pressure difference meets the process. Require. Daily maintenance: Check whether the pipes are running, dripping, dripping or leaking; check the door panel and air duct of the box for air leakage; observe whether the condensate discharge is smooth; the fan runs normally without abnormal sound; Pressure, steam pressure, clean room temperature and relative humidity. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean rooms and purification plants.
When the air-conditioning unit is overhauled, the personnel entering the air-conditioning unit must be supervised outside, and it is forbidden to work alone. The lighting used must be a safe voltage below 36V; the control system belongs to weak current control, and the distance from the strong electromagnetic radiation source should be 3-5m to ensure the signal No interference; the parameters set by the controller panel shall not be changed arbitrarily, and the system verification and maintenance shall be carried out every six months. Fans used in HVAC systems generally use centrifugal or axial fans, which are used as supply fans, return fans, and exhaust fans in the system. Different types of fans can be selected according to their performance characteristics in different places of use; On the air supply side of the machine, a volute-free fan, an air supply fan or a centrifugal fan equipped with a discharge plug and a cleaning plate can be used. Axial fan or centrifugal fan. Centrifugal fans are the same as centrifugal pumps. A high-speed rotating impeller is installed in the volute-shaped pump body. The centrifugal force generated by the impeller makes the gas obtain greater kinetic energy, and then converts it into static pressure to send the gas out.
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