Air Conditioner Throttle Device Control for Cold Storage Efficiency
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Solution Overview
Problem
Existing air conditioners face low energy efficiency and long cold storage times due to their inability to adjust refrigerant flow during the cold storage process, leading to inefficient energy usage and prolonged cooling times.
Innovation Solution
A method and device that adjust the opening degree of a throttle device based on ambient temperature and compressor pipe temperature to optimize refrigerant flow, incorporating a processor and memory to execute computer-readable instructions for controlling the throttle device, allowing for real-time adjustments to improve cold storage capacity and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the throttle device maintains a constant opening degree during cold storage, then the device structure is simple, but the refrigerant flow cannot be adjusted leading to low energy efficiency and long cold storage time
Solution Approach 1:
The throttle device opening degree is changed from fixed to dynamically adjustable based on real-time detection of ambient temperature and compressor discharge temperature. The control system continuously monitors these parameters and adjusts the throttle opening accordingly to optimize refrigerant flow and cold storage efficiency.
Solution Approach 2:
The system implements a closed-loop feedback control mechanism where sensors detect ambient temperature and compressor discharge temperature, the controller processes these signals, and adjusts the throttle device opening degree in response. This feedback loop enables automatic optimization of refrigerant flow without manual intervention.
2Loss of time
If the refrigerant flow is increased to improve cold storage capacity, then the cold storage time is reduced, but the energy consumption increases
Solution Approach 1:
The system dynamically changes the throttle device opening degree parameter based on detected temperature conditions. By adjusting this parameter in real-time, the refrigerant flow is optimized to achieve rapid cold storage while minimizing energy consumption, avoiding both excessive flow (wasting energy) and insufficient flow (prolonging storage time).
Data Source
AI summary
A method for controlling cold storage of an air conditioner includes acquiring an ambient temperature around the air conditioner and a pipe temperature of an exhaust pipe of a compressor of the air conditioner, acquiring a target opening degree corresponding to a current cold storage mode of the air conditioner according to the ambient temperature and the pipe temperature, and adjusting an opening degree of a throttle device of the air conditioner to be the target opening degree. The throttle device is arranged at a pipe between a cold storage box of the air conditioner and a condenser of the air conditioner.