Device for controlling airflow field and method thereof

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Solution Overview

Problem

Horizontal-flow air conditioning machines in data centers struggle to detect short circulation airflow fields, leading to insufficient airflow and partial overheating, as they rely on average temperature measurements, which are not applicable across different data centers.

Innovation Solution

A method and device for controlling airflow fields that involve supplying cooling airflow, monitoring backflow temperature, and adjusting airflow flux using a processing module and fan to detect and address short circulation airflow fields, ensuring effective cooling distribution and alerting operators if necessary.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple sensors are arranged in the data center to detect overheat conditions, then the detection accuracy of short circulation airflow field is improved, but the device complexity and cost increase

Engineering Contradiction:
Improvedetection accuracyVSAvoidsensor arrangement complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts the detection function from multiple physical sensors and implements it through a single sensor combined with computational analysis. By taking out the detection task from the physical domain and moving it to the computational domain, the system achieves accurate detection of short circulation airflow fields without requiring multiple sensors distributed throughout the data center.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical/sensor-based detection system with a computational system. Instead of using multiple physical sensors to detect temperature variations, the system uses a single sensor combined with computational algorithms to analyze airflow patterns and detect short circulation, substituting physical complexity with computational processing.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Device complexity

If a single sensor arrangement is used, then the device complexity is reduced, but the adaptability to different data center configurations is worsened

Engineering Contradiction:
Improvesensor arrangement simplicityVSAvoidadaptability to different data centers
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent creates a universal detection system that can be applied to different data center configurations. The single sensor arrangement combined with computational analysis serves multiple functions: detecting short circulation, analyzing airflow patterns, and adapting to various data center layouts, making the system universally applicable without requiring customization for each specific configuration.

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

Solution Approach 2:

The patent achieves adaptability through parameter changes in the computational analysis rather than physical reconfiguration. The system maintains a fixed single sensor arrangement but adapts to different data centers by changing the parameters and algorithms used to interpret the temperature data, allowing the same physical setup to work across various configurations.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the cooling airflow flux is increased to cover the entire air conditioning space, then the cooling effectiveness is improved, but the energy consumption increases

Engineering Contradiction:
Improvecooling effectivenessVSAvoidfan energy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic adjustment of the cooling airflow flux based on real-time detection of short circulation conditions. Rather than maintaining constant high flux, the system dynamically modulates the fan speed and airflow rate according to the detected airflow field conditions, achieving effective cooling coverage while minimizing energy consumption during normal operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent employs feedback control where the detection system continuously monitors the airflow field and provides feedback to the cooling system. When short circulation is detected, the system adjusts the cooling airflow flux accordingly; when normal circulation is detected, the flux is reduced to optimal levels, creating a closed-loop control system that balances cooling effectiveness with energy efficiency.

Inventive Principle:
Principle #23Feedback

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

The solution ensures that the airflow field is optimized to cover the entire air conditioning space, maintaining thermal stability and preventing overheating by dynamically adjusting airflow flux based on temperature and flow variations, thereby improving cooling efficiency and data center performance.

Implementation Method 1

supplying a cooling airflow into the air conditioning space

Methodology Applied
Scientific EffectFluid flow:

Implementation Method 2

retrieving a backflow temperature of the cooling airflow

Methodology Applied
Scientific EffectTemperature measurement:

Data Source

PatentUS9677783B2Device for controlling airflow field and method thereof
Publication Date: 2017.06.13 DELTA ELECTRONICS INC(CN)
  • US9677783B2 patent drawing
  • US9677783B2 patent drawing
  • US9677783B2 patent drawing

AI summary

The present invention is related to a device for controlling an airflow field and a method thereof. The method is included of: supplying a cooling airflow into an air conditioning space, smoothly altering flux of the cooling airflow, retrieving a backflow temperature of the cooling airflow, and comparing variation of the backflow temperature with a flux variation of the cooling airflow. Only part of the air conditioning space is covered in the circulation range of the cooling airflow if the backflow temperature is varying in the same tendency as the flux variation. The device is included of an air conditioning cabinet and a chiller. The air conditioning cabinet is included of a coil pipe, a fan corresponding to the coil pipe and a processing module electrically connected to the fan. The chiller is connected to the coil pipe to supply cooling water in to the coil pipe.