Operation analysis method for production plant
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Solution Overview
Problem
Existing production plants with air-cooled heat exchangers face challenges in accurately measuring and understanding the influence of wind conditions on their operation, as traditional wind direction and velocity meters only provide data at a single point, failing to account for the distributed impact across large areas.
Innovation Solution
The method involves using Doppler LIDAR to acquire three-dimensional wind condition data and environment data, which is then analyzed using numerical methods to predict future wind conditions and their impact on the plant's operation, allowing for proactive management of operation conditions within safe limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a wind direction and wind velocity meter is provided at one point in the plot to measure wind condition, then the measurement device complexity is reduced, but the measurement precision of wind condition influence on ACHEs is insufficient
Solution Approach 1:
The patent replaces traditional mechanical wind direction and wind velocity meters with a Doppler LIDAR system that uses laser technology and optical detection to measure wind conditions. This substitution enables three-dimensional wind field measurement with high precision while reducing the need for multiple mechanical sensors distributed across the plot.
Solution Approach 2:
The patent transitions from measuring wind conditions at a single point (zero-dimensional or one-dimensional measurement) to capturing three-dimensional wind field data throughout the plot. The Doppler LIDAR system measures wind velocity vectors in three dimensions, providing comprehensive spatial distribution of wind conditions that affect multiple ACHEs simultaneously.
2Loss of information
If traditional wind direction and velocity meters are used to measure wind condition at one point, then the device complexity is low, but the ability to grasp wind condition influence on distributed ACHEs is insufficient
Solution Approach 1:
The Doppler LIDAR system serves multiple functions: it measures wind direction, wind velocity, and three-dimensional wind field distribution simultaneously. A single device provides comprehensive wind condition information that would otherwise require multiple distributed sensors, reducing information loss while maintaining reasonable system complexity.
Solution Approach 2:
The patent introduces a numerical analysis system that acts as an intermediary between the raw LIDAR measurement data and the evaluation of wind condition influence on ACHEs. This computational mediator processes the three-dimensional wind field data to determine the specific impact on each heat exchanger, providing complete information without requiring direct physical measurement at every ACHE location.
3Reliability
If three-dimensional wind condition data is acquired using Doppler LIDAR and analyzed through numerical methods, then the measurement precision and operational prediction accuracy are improved, but the device complexity and analysis complexity increase
Solution Approach 1:
The patent performs preliminary numerical analysis to establish the relationship between three-dimensional wind field distribution and wind condition influence on ACHEs before actual operation prediction. By pre-processing the data and creating predictive models in advance, the system achieves high reliability without requiring complex real-time analysis during operational decision-making.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables precise understanding and prediction of wind conditions' influence on production plants, preventing operational limitations and optimizing performance by anticipating and mitigating issues like hot air recirculation, thereby ensuring stable and efficient operation.
Implementation Method 1
acquiring, with use of a Doppler LIDAR, a distribution of three-dimensional wind condition data indicating a wind direction and a wind speed
Data Source
AI summary
Provided is an operation analysis method for a production plant (1), including: acquiring, with use of a Doppler LIDAR (5), a distribution of three-dimensional wind condition data at positions of an upper space of the production plant (1) and a surrounding space thereof including an arrangement region for an air-cooled heat exchanger (2); acquiring environment data indicating a state of a natural environment that affects operation of the air-cooled heat exchanger (2); and learning, through a numerical analysis with use of a computer, based on a distribution of the three-dimensional wind condition data and on the environment data, a correspondence between a distribution pattern of the three-dimensional wind condition data and the environment data.