A natural gas compressor post-air cooler spray cooling and intelligent control method

CN117288002BActive Publication Date: 2026-07-03PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2022-06-16
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing technologies, the cooling effect of the compressor's after-air cooler is poor when the ambient temperature is high in summer, resulting in excessively high outlet natural gas temperature, which affects the accuracy and safety of pipeline metering. In addition, water cooling systems require large investments and are inconvenient to maintain, and the optimization calculation methods for spray devices are insufficient, making it impossible to achieve the optimal operating state.

Method used

A simple mathematical model is constructed based on thermodynamic principles to calculate the heat release of natural gas and the amount of spray water in the finned tube bundle, determine the optimal installation scheme for the spray equipment, and dynamically adjust the spray volume through a PLC control system to achieve intelligent temperature control.

Benefits of technology

It achieves efficient cooling of the air cooler after the compressor, ensuring the safe and stable operation of large compressor stations, reducing energy consumption and investment, and providing a technical reference for optimal operating conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a spray cooling and intelligent control method for a natural gas compressor post-air cooler, relating to the field of natural gas boosting and transportation technology. The method includes the following steps: collecting structural and physical property parameters, air thermodynamic parameters, and natural gas thermodynamic parameters of the post-air cooler finned tube bundle; calculating the heat release of natural gas within the finned tube bundle; calculating the required spray water volume to reach the required temperature for external natural gas transmission; determining the optimal spray equipment installation scheme by comprehensively considering the internal space location of the post-air cooler, nozzle atomization effect and droplet diameter, energy saving and consumption reduction, and economic factors; dynamically adjusting the spray volume and start / stop conditions of the spray cooling system according to the processing capacity of the post-air cooler and the dynamic changes in the ambient temperature; and realizing intelligent control of the natural gas outlet temperature of the post-air cooler finned tube bundle based on the functions and control process of the temperature control system. This ensures the safe, stable, and efficient operation of large-scale compressor stations and achieves energy saving and consumption reduction.
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