Air conditioning and ventilating system
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Solution Overview
Problem
In air conditioning and ventilating systems, refrigerant leaks can lead to oxygen deficiency and other inconveniences due to insufficient ventilation airflow, which existing systems do not adequately address by securing airflow volume when refrigerant leakage is detected.
Innovation Solution
An air conditioning and ventilating system that includes an airflow volume detection unit and a control unit, which sets the air conditioning device to a stop state when the ventilation device's airflow volume falls below a predetermined value, and uses an auxiliary fan to compensate for reduced airflow, issuing alarms to alert maintenance personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air conditioning device increases airflow volume to compensate for ventilation device shortage, then refrigerant accumulation is inhibited, but the air conditioning device operates under excessive load
Solution Approach 1:
The control device detects airflow volume shortage of the ventilation device in advance and stops the air conditioning device before refrigerant leakage can cause accumulation, preventing the need for compensatory high-load operation
Solution Approach 2:
The control device acts as an intermediary that coordinates between the ventilation device and air conditioning device, stopping the air conditioning device when ventilation is insufficient rather than allowing high-load compensation
2Object-affected harmful factors
If the air conditioning device operates at high airflow volume to prevent refrigerant accumulation, then safety is improved, but energy consumption increases
Solution Approach 1:
The system performs preliminary detection of ventilation device airflow volume and preemptively stops the air conditioning device, eliminating the need for high-energy consumption compensation operation
Solution Approach 2:
The control device continuously monitors airflow volume of the ventilation device and provides feedback control by stopping the air conditioning device when ventilation is insufficient, optimizing energy consumption while ensuring safety
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 solution effectively inhibits refrigerant accumulation by ensuring adequate ventilation airflow and alerts users to ventilation device faults, preventing refrigerant leakage-related issues.
Implementation Method 1
a heat exchanger configured to generate conditioned air by heat exchange with a refrigerant
Data Source
AI summary
An air conditioning and ventilating system including: an air conditioning device including a heat exchanger configured to generate conditioned air by heat exchange with a refrigerant; a ventilation device communicatively connected to the air conditioning device and including a supply air fan and/or an exhaust fan; an airflow volume detection unit configured to detect an airflow volume equivalent value of the ventilation device; and a control unit. On determination that the airflow volume equivalent value acquired from the airflow volume detection unit is equal to or less than a first predetermined value, the control unit sets an operation of the air conditioning device to a stop state.