Air handling unit control system

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Solution Overview

Problem

Existing air handling unit control systems cannot integrate performance curve parameters of heat exchangers and other elements, leading to inefficiencies in equipment operation and a lack of comprehensive system analysis and predictive maintenance capabilities.

Innovation Solution

An air handling unit control system with a main controller and expansion modules that connect to various hardware devices, including sensors, allowing for setting and monitoring of parameters such as maintenance, inverter settings, and early-warning functions, providing a graphical interface for data visualization and predictive analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a universal DDC or PLC control system is used, then basic feedback logic control can be achieved, but performance curve parameters of heat exchangers and blowers cannot be integrated

Engineering Contradiction:
Improveintegration capabilityVSAvoidequipment efficiency prediction
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The control system is designed with multi-functionality to integrate performance curve parameters of heat exchangers, blowers, and other elements. The system combines basic feedback logic control with advanced performance monitoring and prediction capabilities, allowing a single control system to perform multiple functions including parameter integration, efficiency prediction, and comprehensive system analysis.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If basic feedback logic control is implemented, then environment control objective can be achieved, but complete air thermal property change functions cannot be provided

Engineering Contradiction:
Improveenvironment controlVSAvoidsystem analysis capability
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The control system segments functionality into distinct modules: basic feedback logic control for environment control, performance curve parameter integration for heat exchangers and blowers, and comprehensive system analysis functions. This segmentation allows the system to maintain ease of operation for basic control while adding advanced analysis capabilities without overwhelming complexity.

Inventive Principle:
Principle #1Segmentation

3Productivity

If traditional control systems are used, then simple control functions are available, but active grasp of operational efficiency changes cannot be achieved

Engineering Contradiction:
Improveoperational efficiency monitoringVSAvoidefficiency change data
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The system implements comprehensive feedback mechanisms that actively monitor and grasp operational efficiency changes of all elements in the air handling unit. Performance curve parameters are continuously integrated and analyzed, providing real-time feedback on efficiency variations. This feedback enables the system to detect, analyze, and respond to efficiency changes, preventing information loss and enabling proactive maintenance decisions.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11573026B2Air handling unit control system
Publication Date: 2023.02.07 CHICONY POWER TECH CO LTD
  • US11573026B2 patent drawing
  • US11573026B2 patent drawing
  • US11573026B2 patent drawing

AI summary

An air handling unit control system is applied to an air handling unit having a plurality of hardware devices. The air handling unit control system includes at least one expansion module and a main controller. The at least one expansion module is configured to be electrically connected to at least one expanded hardware device. The main controller is electrically connected to the expansion module to control the expanded hardware device. The main controller provides a setting interface according to the hardware devices and the expanded hardware device. The setting interface includes a plurality of setting items. When at least one of the setting items is triggered, the main controller executes a corresponding setting procedure according to the triggered setting item to set up the hardware devices and the expanded hardware device.