Compressor, air conditioner system comprising the compressor and heat pump water heater system
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Solution Overview
Problem
In two-staged enthalpy-increasing compressors, pressure and flow velocity fluctuations in the medium-pressure gas passageway lead to inefficiencies in gas discharge and suction, reducing the working and energy efficiency ratios and increasing energy consumption.
Innovation Solution
The compressor design includes a medium-pressure gas passageway with specific cross-sectional area ratios between sections, optimizing the flow velocity and pressure fluctuations by varying the cross-sectional areas of passageway sections, and adjusting the volumes and eccentricities of chambers to improve gas replenishment and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the medium-pressure gas passageway has uniform cross-sectional area, then the structure is simple, but the flow velocity fluctuation between gas discharge and suction increases, reducing compressor efficiency
Solution Approach 1:
The patent applies local quality by varying the cross-sectional area of different sections of the medium-pressure gas passageway. Specifically, the passageway is divided into multiple sections with different cross-sectional areas: the first section (near low-pressure chamber) has a larger cross-sectional area, the second section (intermediate) has a medium cross-sectional area, and the third section (near high-pressure chamber) has a smaller cross-sectional area. This localized variation optimizes flow velocity distribution and reduces fluctuations, thereby improving compressor working efficiency without significantly complicating the overall structure.
2Ease of manufacture
If the medium-pressure gas passageway has uniform cross-sectional area, then the manufacturing is simple, but the energy efficiency ratio decreases due to flow velocity fluctuations
Solution Approach 1:
The patent implements local quality by designing different cross-sectional areas for different sections of the passageway. The first section has cross-sectional area S1, the second section has area S2, and the third section has area S3, where S1 > S2 > S3. This localized differentiation optimizes refrigerant flow characteristics, reduces turbulence and velocity fluctuations, and improves energy efficiency ratio while maintaining reasonable manufacturing complexity through standardized section designs.
3Productivity
If the cross-sectional area of the medium-pressure gas passageway is increased, then the flow velocity fluctuation is reduced, but the volume of the compressor increases
Solution Approach 1:
The patent applies local quality by using different cross-sectional areas in different sections rather than uniformly increasing the entire passageway volume. The first section uses a larger area to reduce velocity fluctuation during discharge, while the third section uses a smaller area to minimize overall volume. This localized optimization achieves improved gas discharge plumpness without proportionally increasing the total compressor volume.
Solution Approach 2:
The patent segments the medium-pressure gas passageway into three distinct sections with different cross-sectional areas. This segmentation allows each section to be optimized for its specific function: the first section handles discharge flow, the second section serves as a transition zone, and the third section prepares for suction. This segmentation achieves flow optimization without requiring a uniform increase in overall passageway volume.
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 design reduces pressure and flow velocity fluctuations, enhancing the first-stage gas discharge and second-stage gas suction, thereby improving the energy efficiency ratio and reducing energy consumption.
Implementation Method 1
a low-pressure compression component having a low-pressure chamber, configured to take in gas and compress the gas to form first compressed gas
Implementation Method 2
an enthalpy-increasing component, configured to convey second compressed gas into the medium-pressure chamber, the second compressed gas and the first compressed gas being mixed to form mixed compressed gas in the medium-pressure chamber
Implementation Method 3
a high-pressure compression component including a high-pressure chamber, configured to take in the mixed compressed gas and compress the mixed compressed gas to form a third compressed gas
Data Source
Figure 1
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AI summary
Provided is a compressor, an air conditioner system comprising the compressor and a heat pump water heater system. The compressor comprises: a low-pressure compression component, a medium-pressure chamber, a low-pressure chamber gas discharge passageway, an enthalpy-increasing component, a high-pressure compression component, a medium-pressure gas passageway and a high-pressure chamber gas discharge passageway. The medium-pressure gas passageway comprises a passageway section at the side toward the low-pressure chamber gas discharge passageway and a passageway section at the side toward the high-pressure chamber gas suction passageway, wherein a ratio between a minimum cross sectional area of the passageway section at the side toward the low-pressure chamber gas discharge passageway and a minimum cross sectional area of the passageway section at the side toward the high-pressure chamber gas suction passageway is ranged from 1.4 to 4. In the compressor, the pressure fluctuation and the flow velocity fluctuation of the refrigerant are relatively smaller, which can improve the first-stage gas discharge plumpness and the second-stage gas suction plumpness, and increase the gas replenishment volume, thereby improving the working efficiency and the energy efficiency ratio of the compressor, and reducing the energy consumption.