Clean room energy-saving technology 1, clean room, clean workbench, laminar flow hood, clean tunnel and microenvironment should be used as far as possible in the process plane layout of clean workshop to reduce the area of advanced clean room, which is a feasible measure to reduce energy consumption and save energy. Foreign papers report that compared with the traditional production environment, the investment of micro-environment clean workshop can save 40%; Air freight alone can save 70%. 2. When designing the plane and facade of the building, we should try our best to implement the energy-saving requirements. Whether the door and window design of clean workshop is reasonable is an important topic to reduce the energy consumption of clean workshop. First of all, according to the characteristics of the clean room, the window-wall ratio is controlled to minimize the window area on the external wall. Secondly, the air tightness requirements of doors and windows and the selection of materials are high-quality and reliable, so as to ensure the thermal insulation (cold) effect of doors and windows, reduce the infiltration of cold air and prevent the occurrence of "cold bridge". 3. Technical measures to reduce the heat (cold) load of clean room (1) According to the production process requirements of products, determine the appropriate indoor air cleanliness level, temperature and relative humidity parameters. On the premise of meeting the production process, from the perspective of energy saving, the air cleanliness level, temperature and relative humidity parameters are determined according to the different requirements of different processes/rooms, and the A value is as low as possible. (2) With the close cooperation of the product production process provider, accurately determine the exhaust air volume of the room or process or production equipment that needs to be installed with the exhaust device in the clean room. This is because the increase of the exhaust air volume of the clean room means the increase of the supplementary fresh air volume of the clean air conditioning system. In the design of the terminal building, sometimes the fresh air volume of the clean air conditioning system is greater than the specified fresh air volume demand due to the increase of exhaust air volume, thus increasing the design heat (cooling) load. Therefore, it is one of the important technical measures to accurately determine the exhaust air volume of clean room to reduce energy consumption. 4. Technical measures to reduce the air supply volume and system resistance of the purified air conditioning system (1) The purified air conditioning system is reasonably divided according to different air cleanliness levels and different working hours and shifts required by the production process. However, the technical measures necessary to reduce the pipeline length and duct resistance should be seriously considered when formulating the scheme, and the electricity consumption should be reduced without increasing the project cost. (2) Organize the setting of various air filters in the clean air conditioning system reasonably, and control the fresh air supply volume of the clean air conditioning system in large clean workshops. (3) The design of clean air conditioning system should make rational use of return air. When the product production process does not produce harmful substances or cross-contamination, the return air should be used as much as possible to reduce energy consumption under the condition of ensuring the fresh air volume and maintaining the specified pressure difference in the clean room. For the unidirectional flow clean room with more air changes, when the air-conditioned room is far away from the unidirectional flow clean room, some air can be directly recovered without returning to the room, which can reduce energy consumption. 5. Reasonably design the air duct of clean air conditioning system. When arranging the air duct, the length of the air duct should be shortened as far as possible, the setting of unnecessary bends and accessories should be reduced, the shape of the air duct should be simplified, and the resistance of the air duct system should be reduced to reduce energy consumption. 6. Control the air volume and water volume with variable flow (1), and control and adjust the air supply volume according to the number of dust particles in the clean room or the room pressure. Take technical measures to effectively control the low air supply in non-working production process or room. (2) According to the characteristics of the production process, set up an exhaust device to detect and control the room or equipment, and control the exhaust air volume or start and stop the exhaust fan or exhaust valve as needed. Avoid opening the exhaust fan or exhaust valve when the room or equipment is not in production, which consumes electricity and increases unnecessary air supply. (3) Fan and water pump should adopt frequency conversion unit reasonably, and change the speed of fan and water pump according to the air supply and water supply to reduce power consumption. (4) The air conditioning unit of the purification air conditioning system adopts frequency conversion control of cold water quantity, hot water quantity or steam quantity.