Reasonable Optimization of Production of Compressed Air System




Step 1. Air requirement assessment:

Compressor and post-treatment equipment manufacturers must have a clear understanding of the customer's compressed air application process so that you can help the customer to select the appropriate compressor and dryer type. The air requirement assessment consists of four steps: gas consumption requirements, working pressure, fluctuations in gas consumption and air quality. It can be achieved by field measurements or estimated by analogy same type of plant with similar equipment, such as using a measurement device of flow, pressure and dew point, and making an evaluation by a computer analysis tool combining simulation program.



Step 2. Select appropriate compression technology:

To meet the needs of gas consumption changes by operating units of the compressor of the simulation program optimization. it is necessary to consider separating the different pipe networks and then performing the simulation calculations if there are two or more required pressures for large flow rates in the plant. Selection according to gas supply and compression methods for each compressor, then obtain lowest energy consumption. In general, a particular flow only corresponds to an optimal compression method to achieve the minimum energy consumption. Of course, this is not only basis selection, also consider other factors, such as ambient temperature and flow changes.



Step 3. Select appropriate drive device:

It should apply variable frequency drive compressor to adjust rotate speed and reduce energy consumption in time according to flow changes if the air requirement is fluctuating.



Step 4. Select appropriate air post-processing equipment:

We need to understand the requirements of compressed air process and quality for user's final product for compressed air quality during air requirement assessment. Usually include: the maximum allowable water content, oil content and particulate impurities, the latest international standard is ISO 8573-1. using the filter to remove particulate impurities, using the dryer to remove moisture, and the oil content depends on what type of compressor or post-processing equipment to obtain required air quality. Here is some practical experience in air post-processing equipment. Remove particulate impurities: choose the matching filter(processing capacity) to filter particulate impurities, smaller processing capacity filter will increase the pressure drop. Remove moisture: the choice of dryer depends on drying degree (dew point). There are several ways to dry the compressed air, but there are two main categories: the first one is refrigeration dryer, it dry cooling air and can reach 2 ℃ or 3 ℃ or more pressure dew point; the second one is adsorption dryer, it use adsorption way to remove moisture in the air, and pressure dew point can reach -3 ℃ or even lower. Such as the pressure dew point of biteman modular-units adsorption dryer can reach -40 ℃or even -70 ℃.






Step 5. Optimize equipment operation of the compressor room:

Compressed air energy saving can bring a lot of benefits for optimization control of a number of compressor room. The intelligent centralized controller continuously monitors the change of gas consumption, then selects the most efficient combination of machines to meet the gas requirements with the best energy consumption efficiency.



Step 6. Configure energy recovery unit:

In the compression process, the compressor almost converts all electrical energy into heat energy.


This article from www.bitemantech.com by Muriel.zhou

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