Single-stage enthalpy enhancing rotary compressor and air conditioner having same
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Air conditioners struggle to maintain cooling performance and energy efficiency in high-temperature environments due to poor heat exchange effects and high power consumption associated with two-stage compression compressors, which are costly and complex.
Innovation Solution
A single-stage enthalpy enhancing rotary compressor with an intermediate vapor injection structure, featuring a rotator and flanges with a vapor injection opening that automatically opens and closes during rotation, allowing for two-stage compression without additional cylinders, integrated into an invariable-frequency compressor system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a two-stage compression compressor is used to improve cooling capacity under high temperature conditions, then the cooling performance is improved, but the power consumption increases and energy efficiency decreases
Solution Approach 1:
The compression process is divided into two stages: first-stage compression in the compressor cylinder and second-stage compression in the flash evaporator. This segmentation allows the compressor to operate at lower power while achieving the required cooling capacity through distributed compression stages.
Solution Approach 2:
The flash evaporator serves as an intermediary device between the compressor and the evaporator, performing intermediate compression and heat exchange functions. This intermediary structure enables the system to achieve high cooling capacity without requiring the compressor itself to consume excessive power.
2Productivity
If a two-stage compression compressor with two compressing cylinders is used to increase compression ratio, then the cooling performance is improved, but the device complexity and cost increase
Solution Approach 1:
The flash evaporator is designed to serve multiple functions: it acts as a heat exchanger, a throttling device, and an intermediate compression chamber. This multi-functionality eliminates the need for separate dedicated compression cylinders, reducing structural complexity while maintaining two-stage compression capability.
Solution Approach 2:
The compression and heat exchange functions are merged into a single integrated system where the flash evaporator performs both thermal processing and compression tasks. This merging reduces the number of separate components and simplifies the overall system structure.
3Productivity
If the vapor injection opening is positioned incorrectly, then the vapor injection effect is poor, but the rotator may block the opening causing injection failure
Solution Approach 1:
The vapor injection opening is positioned and sized to dynamically interact with the rotator during operation. The opening allows vapor injection during specific rotational phases while the rotator naturally blocks it during other phases, creating a dynamic injection mechanism that is both effective and reliable without requiring additional control valves.
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 enhances refrigerant circulation and heat exchange performance, improves cooling capacity, reduces power consumption and costs, and maintains high energy efficiency, making it suitable for high-temperature areas with lower compressor power and cost.
Implementation Method 1
A vapor injection opening is defined in at least one of the upper flange and the lower flange, and the vapor injection opening is configured to supply gas outside the compressor to the compression chamber directly
Implementation Method 2
When the rotator rotates to a second preset position range, the vapor injection opening is configured to be blocked by the rotator and to be automatically closed
Implementation Method 3
A compression chamber is formed between the rotator and an inner peripheral wall of the cylinder
Implementation Method 4
the gas output pipeline of the flash evaporator is in communication with the vapor injection opening of the compressor
Data Source
AI summary
A single-stage enthalpy enhancing rotary compressor and an air conditioner having same. The single-stage enthalpy enhancing rotary compressor includes: at least one single-stage cylinder, a rotator, an upper flange, and a lower flange. The rotator is arranged inside the cylinder and is rotatable, a compression chamber is formed between the rotator and an inner peripheral wall of the cylinder, a vapor injection opening is defined in at least one of the upper flange the lower flange, and the vapor injection opening is configured to supply gas outside the compressor to the compression chamber directly. According to the present disclosure, two-stage compression is realized without adding an extra cylinder, thereby effectively enhancing a circulation of refrigerant, improving cooling performance of the air conditioner under high environmental temperatures.