Method and device for evaluating energy consumption of natural gas purification plant

Abstract

The invention provides a method and device for evaluating the energy consumption of a natural gas purification plant. The method comprises the steps of selecting energy performance parameters and corresponding energy consumption evaluation indexes; collecting historical values of the energy performance parameters and the corresponding energy consumption evaluation indexes; obtaining a regression equation for representing a relation between the energy performance parameters and the energy consumption evaluation indexes according to the historical values; substituting an actual value of an energy evaluation index corresponding to an actual value of an energy performance parameter to be evaluated into the regression equation to obtain a reference value of the energy performance parameter to be evaluated; and obtaining the difference between the actual value of the energy performance parameter to be evaluated and the reference value. The method more objectively reflects energy consumptionchange conditions and effects of energy-saving measures of the natural gas purification plant, thereby providing a basis reference for formulating an energy management method conforming to requirements of each plant.

Description

technical field [0001] The invention relates to the technical field of energy utilization, in particular to an evaluation method and device for energy consumption of a natural gas purification plant. Background technique [0002] At present, the evaluation of energy consumption in the process of natural gas purification mainly relies on statistical methods: that is, to count the consumption data of various energy sources (water, electricity, gas) within a period of time to obtain the total energy consumption of the entire purification plant, which can then be processed according to the natural gas Calculate unit energy consumption. In order to improve the energy management level of production equipment, enterprise managers often set up a benchmark enterprise so that all purification plants can be aligned with the benchmark. However, due to the complexity of natural gas purification technology, different enterprises have different energy consumption levels due to their diffe...

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Problems solved by technology

However, the current energy evaluation generally only uses the same standard to evaluate different enterprises, and draw conclusions based on this, which is obviously not objective enough.

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