Clean room workshop combined purification air conditioning unit
Clean room pharmaceutical cleanroom combined purification air conditioning unit
Combined air-conditioning unit is a very important air treatment equipment in the air-conditioning system. Its manufacture and installation are much stricter than those of the combined air-conditioning unit used in general air conditioners. There are special requirements in all aspects, especially for...
Text label: clean room purification air conditioner unit, clean pharmaceutical cleanroom combined air conditioner, design, construction and installation
Clean room pharmaceutical cleanroom combined purification air conditioning unit
Combined air-conditioning unit is a very important air treatment equipment in the air-conditioning system. Its manufacture and installation are much stricter than those of the combined air-conditioning unit used in general air conditioners. There are special requirements in all aspects, especially for the combined purification air conditioning unit of the biological clean room, the requirements are higher. The resistance of the purification air-conditioning system is larger than that of the general air-conditioning system, so the fan head of the combined purification air-conditioning unit and the pressure difference inside and outside the unit are also larger than those of the combined air-conditioning unit, so the tightness of the unit is required to be higher. The composition of the combined purification air conditioning unit: new, return air mixing section, primary filter section, heating section, surface cooling section, humidification section, fan section, sterilization section, secondary return air section, middle section, medium efficiency filter section, Air outlet section and silencer section.
The function of the new return air mixing section is to mix the fresh air and the return air in this section. Usually, there is a manual regulating valve at the entrance of the fresh air and the return air. For example, when the purification air conditioning system is equipped with an automatic control device, Electric control valves are installed at both the fresh air inlet and the return air inlet, which can increase the fresh air volume during transitional seasons, which is beneficial to energy saving. The primary filter section is equipped with a plate or bag filter. The plate filter takes up less space than the bag filter, which can shorten the length of the unit and save the area of u200bu200bthe machine room. The surface cooling section is equipped with a surface cooler and a condensate pan, which is used for cooling or cooling and dehumidifying the air in summer. The heating section is used for heating air in winter or reheating air in summer. Depending on the heating medium, a hot water heater or a steam heater can be selected, and an electric heater can also be selected after technical and economic comparison according to specific conditions. The humidification section is equipped with a humidifier. For the biological clean room, it is best to use a dry saturated steam humidifier, which will not pollute the air and the amount of humidification is easy to control. , so try not to use this type of humidification section in the biological clean room project. The fan section is equipped with a centrifugal fan. On the premise of meeting the system requirements, try to choose a fan with a low speed, which can reduce noise. Compared with ordinary air conditioners, its air volume is large and the wind pressure is high. it is good. Short sterilization, built-in ozone generator or ultraviolet sterilization lamp, ozone sterilization is environmentally friendly sterilization, sterilization effect is good, can kill bacteria in the unit, pipeline system and clean room, and ultraviolet sterilization only It has a sterilization effect on the inner surface of the unit, but has almost no sterilization effect on the flowing air; ozone sterilization should be carried out in a clean room with no one, otherwise it will damage the human respiratory system and mucous membranes. The air outlet section is provided with an air outlet and a regulating valve. The air outlet can be set at the top or on the side, depending on the specific situation. Zhongjing Global Purification can supply and install combined purification air-conditioning units, and can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean rooms and clean workshops.
In the clean room combined purification air conditioning unit, the position of the fan is very important. Different positions have different effects. The fan is located in front of the surface cooler, and the surface cooler is in the positive pressure section, and the condensed water is easily discharged. It is a great advantage for the biological clean room. It is not easy to breed bacteria in the condensate pan, but its disadvantage is that if there is no damping orifice plate at the outlet of the fan, and there is no equalizing section or middle section, the airflow at the fan outlet will cool the surface. The scouring of the fan is uneven, which affects the effect of heat exchange. If no measures are taken, it is difficult to introduce secondary return air; a damping orifice can be installed at the fan outlet, and an equalizing section can be set to change the disadvantage of uneven scouring. The ozone generator is installed in the section to turn the middle section into a sterilization section; if you want to introduce secondary return air, you can install a bypass regulating valve or bypass pipe on the side of the surface cooler to achieve this. When the fan is located behind the surface cooler, the airflow can evenly flush the surface cooler, the heat exchange efficiency is high, and it is easy to introduce secondary return air. Small, more energy-saving; the disadvantage is that the surface cooler is in the negative pressure section, the condensed water is not easy to discharge, and it is easy to breed bacteria.
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