Large-scale petrochemical device air cooler energy efficiency evaluation on-line monitoring system and method

Abstract

The invention provides a large-scale petrochemical device air cooler energy efficiency evaluation on-line monitoring system and method. The system is formed by a data acquisition and emission portion and a data receiving and processing portion. The data acquisition and emission portion comprises a wireless data transmitter, a first indirect wall temperature sensor, a second indirect wall temperature sensor, a pressure / flow sensor, a first direct air velocity / temperature sensor, a second direct air velocity / temperature sensor and an electric power measuring instrument, wherein the first indirect wall temperature sensor, the second indirect wall temperature sensor, the pressure / flow sensor, the first direct air velocity / temperature sensor, the second direct air velocity / temperature sensor and the electric power measuring instrument are connected with the signal input end of the wireless data transmitter. The data receiving and processing portion comprises a wireless data receiver, a factory real-time database system and a control system, wherein the factory real-time database system and the control system are connected with the wireless data receiver. The method comprises the steps of establishing a real-time database and calculating the performance of an air cooler online. A temperature measurement device is installed without parking; on-line monitoring of energy efficiency of the air cooler can be realized; and real-time dynamic oscillograms of thermal load, heat transfer coefficient, motor power consumption and energy efficiency ratio of the air cooler are displayed directly.

Description

technical field [0001] The invention relates to an online monitoring system. In particular, it relates to an online monitoring system and method for energy efficiency evaluation of air coolers applied to large-scale petrochemical plants. Background technique [0002] The petrochemical industry is a pillar industry of the national economy, but it is also a high-energy-consuming industry. At present, the energy-saving and emission-reduction work of the whole industry is facing severe challenges. Generally speaking, the heat of the medium below 120 °C in industry has no recovery value, and it is usually taken away by water coolers or air coolers. Compared with water cooling, air cooling has the following advantages: saving a lot of industrial water; high economy; reducing water pollution in industrial areas and improving environmental quality. [0003] The air-cooling system is an important special equipment system for large-scale petrochemical plants. The medium transported ...

AI Technical Summary

Problems solved by technology

If more monitoring points are added, cables need to be laid to transmit the signal to the control room, which requires a large amount of work

Images