The role of air conditioning systems in the purification industry is becoming more and more important and is basically in a dominant position. In recent years, biological purification projects, especially animal laboratories, have become increasingly demanding air conditioning systems. The main function of the purification air conditioning system is constant temperature and humidity. Therefore, the design and construction of the purification air conditioning system must meet the new requirements of the continuous development and improvement of the purification industry. In order to reduce the energy consumption environment in the enterprise, the correct use has a great effect on resource conservation. During the operation of the air conditioner, the electric energy during the operation of the fan and the chilled water in the circulating water system are the main energy consumption in the air conditioning system. 1 talk about energy saving from electrical control system The air conditioning system is characterized by high air volume, which results in high energy consumption, and reasonable design and management can greatly reduce operating costs while ensuring a good indoor environment. Before adjusting the air volume and wind pressure, it is adjusted by the damper on the ventilation duct, but it is a kind of waste to the air volume. It is very uneconomical from the perspective of energy saving, and the current use is more energy-saving of the frequency conversion control system. The fan is a variable load device. The speed of the fan directly affects the size of the load. After reducing the air volume and wind pressure of the fan, energy saving can be achieved. After this kind of load increases the speed control system, it can save 20%~30% of electric energy, and the energy saving effect is still very considerable, and the general speed regulation performance can meet the requirements of the speed range and dynamic performance of the fan. 1.1 Selection of frequency converter In general, energy savings in production equipment is achieved by reducing input power or reducing run time. According to the torque and power characteristics of the fan, when the required air volume is reduced, the rotation speed can be reduced, and the corresponding input power is also reduced, so that the electric energy can be saved greatly; at the same time, under the premise of meeting the production requirements, the interval is intermittent. Operation can reduce running time and save energy. The fan is a torque-reducing load. The load torque is proportional to the square of the speed. As the speed decreases, the torque is reduced. Secondly, the load of the fan does not need to start and stop frequently. Will be instantaneously overloaded. The ordinary function frequency converter can be selected, which can fully meet the actual needs in terms of technology. When selecting the inverter, pay attention to the inverter data, inverter capacity, power supply voltage, current, output frequency, etc. These are important basis for selecting a frequency converter. 1.2PLC inverter control system The electrical control system is a key part of the overall system, and the system uses closed-loop control to control the speed of the fan. By assembling the wind speed and wind pressure sensor at the air outlet of the air supply post, the operation of the system can be reflected based on the sensor output signal. When the wind speed and wind pressure do not meet the requirements, the PLC controls the frequency converter to perform frequency conversion speed regulation on the fan according to the digital signal fed back, and increases or decreases the speed of the fan to meet the ventilation requirements of the production process, thereby achieving energy saving. the goal of. 1.3 human-machine communication system In order to facilitate the control and monitoring of the air conditioning system, the touch screen is connected to the PLC in the control room, and the human-machine communication system is built. The human-machine interface can be used to manually adjust the operation status and process parameters of the entire ventilation system. Monitor changes in the inverter's output frequency, air volume, and other data. It can be adjusted in time or switched to manual control mode when there are special requirements in the production process. 1.4 night low frequency operation Some enterprises purify the air conditioning system to require 24 hours of uninterrupted operation, to ensure that the clean area maintains a positive pressure on the wind pressure in the general area. Therefore, it can't stop running during the no-night period, but maintaining the wind speed and wind pressure during normal production will cause energy waste. This requires lowering the frequency during periods of non-production and also meeting the wind pressure requirements. Treatment Trolley,Detachable Treatment Trolley,Steel Treatment Trolley,Medical Steel Treatment Trolley NANJING TIANAO MEDICAL INSTRUMENTS MANUFACTURE CO.,LTD. , https://www.tianaomedical.com
Description of energy saving measures for air conditioning purification project