Swimming Pool Heat Pump Frequency Control to Reduce Energy Consumption
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Solution Overview
Problem
Conventional swimming pool heat pump systems face challenges with high energy consumption, noise issues, and inefficient temperature control, leading to poor user experience and reduced service life.
Innovation Solution
A method and apparatus for a swimming pool heat pump system that adjusts water temperature based on external ambient temperature, using an inverter compressor with adjustable frequency bands (high-frequency, intermediate-frequency, and low-frequency) to optimize energy efficiency and reduce frequent system activation, thereby increasing the coefficient of performance (COP) and extending system lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a conventional compressor system is used in the swimming pool heat pump, then the system can heat water, but energy consumption is high and noise problems occur
Solution Approach 1:
The patent applies dynamic frequency adjustment of the compressor by dividing operation into three frequency bands (high, intermediate, low) based on temperature difference conditions. The controller dynamically selects the appropriate frequency band to optimize both energy consumption and temperature control performance, resolving the contradiction between energy efficiency and control reliability.
Solution Approach 2:
The patent changes the operating parameters of the compressor by implementing variable frequency control with three distinct frequency bands. By adjusting the compressor frequency according to the absolute temperature difference between pool water and ambient air, the system optimizes energy consumption while maintaining reliable temperature control.
2Temperature
If the swimming pool heat pump system operates frequently to maintain water temperature, then temperature control is achieved, but service life is reduced
Solution Approach 1:
The system dynamically adjusts compressor frequency based on temperature difference conditions, using high frequency when temperature difference is large and low frequency when temperature difference is small. This dynamic adjustment reduces unnecessary frequent operations while maintaining temperature control, thereby extending system service life.
Solution Approach 2:
The patent implements periodic temperature monitoring and controlled operation cycles with three frequency bands. By using periodic control rather than continuous high-frequency operation, the system maintains temperature control while reducing overall operation frequency and extending equipment service life.
3Speed
If the heat pump operates at high frequency to heat water quickly, then heating speed is improved, but energy consumption increases
Solution Approach 1:
The system dynamically adjusts compressor frequency based on the absolute temperature difference between pool water and ambient air. When temperature difference is large, high frequency band is used for fast heating. When temperature difference is small, low frequency band is used for energy-efficient maintenance heating. This dynamic adjustment optimizes both heating speed and energy consumption.
Solution Approach 2:
The patent applies partial action by using different frequency bands appropriate to the heating needs. High frequency is applied only when necessary (large temperature difference), while low frequency is used when minimal heating is needed (small temperature difference), avoiding excessive energy consumption while maintaining adequate heating performance.
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 reduces energy consumption, maintains comfortable water temperatures, and prolongs the service life of the heat pump system by optimizing energy efficiency and minimizing frequent start-ups.
Implementation Method 1
the heat pump can reabsorb heat in the air, by using the reversed Carnot principle, only a small quantity of electric power is required to transfer heat to water in the swimming pool
Implementation Method 2
placing heated water in the to-be-heated container into the swimming pool by using a circulating pump
Data Source
Figure 1
Figure 2
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AI summary
The present invention relates to the field of heat pump technologies, and discloses a water temperature control method, apparatus, and device for a swimming pool heat pump system, and a storage medium, so as to adjust a water temperature of a swimming pool according to an external ambient temperature, increase a coefficient of performance during operation of the swimming pool heat pump system, reduce energy consumption, avoid frequent opening and closing of the swimming pool heat pump system, and increase a service life of the swimming pool heat pump system. The method of the present invention includes: obtaining an external ambient temperature and adjusting a heating temperature according to the external ambient temperature to obtain a target heating temperature; detecting an inlet water temperature of the swimming pool heat pump system, and determining an absolute value of a temperature difference between the inlet water temperature and the target heating temperature; and determining a target operating frequency band of the swimming pool heat pump system according to the absolute value of the temperature difference, controlling an inverter compressor in the swimming pool heat pump system to heat water in a to-be-heated container based on the target operating frequency band, and placing heated water in the to-be-heated container into the swimming pool by using a circulating pump.