With the continuous progress of society and the development of science, people's understanding of energy conservation and emission reduction has become more and more in-depth and recognized. Various industries in various countries are taking effective measures to save energy. Here are some ways to save energy for air compressors.
1. Solve air compressor leakage and gas use
From the data of the testing agency, it can be seen that when the air compressor leaks, only 10% of the electricity consumed by the air compressor is converted into compressed air, and the remaining 90% is converted into heat energy. It can be seen that compressed air is ten times more expensive than electricity, but we often ignore this. In most factories, the sound of air leakage can be heard everywhere, but no one cares at all. If we solve the leakage problem, a lot of energy will be saved. Therefore, when you hear the leakage, take corresponding measures in time.
There are also some factories that have a big misunderstanding in the way of using gas. For example, in circuit board manufacturers, most electroplating lines use vibration to increase the electroplating capacity of small holes. Some manufacturers prefer to use air vibration to achieve this purpose. As everyone knows, this consumes more than ten times more electricity than the electric vibration method. Therefore, in order to save energy for air compressors, while timely solving the leakage problem, it is also necessary to avoid improper gas use.
2. Energy-saving transformation of air compressors
There are three main ways to transform air compressors for energy saving.
1. Frequency conversion speed regulation method: frequency conversion speed regulation method is used to reduce the shaft power output of the air compressor motor. Before the transformation, the air compressor will automatically unload when the pressure reaches the set pressure; after the transformation, the air compressor does not unload, but reduces the air output of the compressor by reducing the speed to maintain the lower pressure required by the gas network. There are two places where energy can be saved:
(1) Reduce the power consumption caused by the sudden change from the unloading state to the loading state of the compressor.
(2) The operating frequency of the motor is reduced to below the working frequency, so that the output power of the motor shaft is reduced. The above two methods have reduced the energy consumption of the air compressor during operation to varying degrees. However, the air compressor generates such a large amount of heat energy during operation and it is dissipated into the air in vain, but it has not received widespread attention from users for a long time. This cannot be said to be a great regret.
2. Centralized control method: centralized control method is adopted for multiple air compressors. The number of air compressors in operation is automatically controlled according to the gas consumption. Before the transformation, the number of air compressors turned on was fixed.
(1) If the gas consumption is further reduced, the air compressor with good performance will automatically shut down. In the case of (1), the air compressor consumes electricity even when it is unloaded. After the transformation, the corresponding number of air compressors can be shut down, and the number of running units is reduced, which undoubtedly saves electricity.
(2) When the gas consumption is reduced to a certain amount, the air compressor reduces the gas production by reducing the loading time.
3. Air compressor heat recovery Air compressor heat recovery is a very environmentally friendly energy-saving method.