Compressor Discharge Guide for Plate Deformation Control
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Solution Overview
Problem
Conventional compressors experience efficiency decreases due to high temperature and pressure in the refrigerant discharge space, which deforms the high/low pressure separation plate and leads to increased power consumption and noise, as the compressed refrigerant is dispersed throughout the discharge space before being transferred to the condenser.
Innovation Solution
A compressor design featuring a discharge guide that directs the compressed refrigerant directly to the discharge pipe before dispersion, incorporating a guide body and tunnel to manage temperature and pressure, and a reinforcement rib to enhance the rigidity of the high/low pressure separation plate, preventing deformation and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the compressed refrigerant is dispersed in the refrigerant discharge space before being discharged through the discharge pipe, then the refrigerant can be transferred to the condenser, but the temperature and pressure in the refrigerant discharge space become very high, causing deformation of the high/low pressure separation plate and decreased compressor efficiency
Solution Approach 1:
The refrigerant discharge space is segmented into multiple regions by the discharge guide structure. The discharge guide divides the space into a first refrigerant discharge space (where high-temperature compressed refrigerant is discharged) and a second refrigerant discharge space (where refrigerant accumulates at lower temperature). This segmentation prevents the entire discharge space from being exposed to high temperatures, thereby preventing deformation of the high/low pressure separation plate while maintaining reliable refrigerant transfer to the condenser.
2Productivity
If the compressed refrigerant is dispersed in the refrigerant discharge space, then the refrigerant can be discharged, but heat is transmitted to the lower space increasing temperature and decreasing compressor efficiency
Solution Approach 1:
The discharge guide segments the refrigerant discharge space to create thermal isolation between the high-temperature discharge region and the lower refrigerant inlet space. By directing the compressed refrigerant through a dedicated discharge guide structure, the heat generated in the first refrigerant discharge space does not directly transmit to the second refrigerant discharge space and lower space, reducing energy loss through heat transmission and maintaining higher compressor efficiency.
3Volume of moving object
If the high/low pressure separation plate is made thinner to reduce space occupation, then the compressor structure is compact, but the plate deforms more easily under high temperature and pressure
Solution Approach 1:
The discharge guide structure segments the high-temperature refrigerant flow path from the separation plate area. By creating a dedicated discharge guide structure with specific geometry (including a guide body and guide tunnel), the high-temperature compressed refrigerant is directed away from the separation plate, reducing thermal stress on the plate. This allows the use of thinner separation plates for compact design while maintaining sufficient strength and deformation resistance.
4Temperature
If the refrigerant is discharged directly to the discharge pipe without dispersion, then temperature and pressure in the discharge space are reduced, but the refrigerant flow may cause noise
Solution Approach 1:
The discharge guide structure incorporates local quality variations in its geometry to control refrigerant flow characteristics. The guide body and guide tunnel have specific cross-sectional area variations and curvature radii that gradually guide the refrigerant flow, preventing sudden expansions or contractions that would generate noise. This local optimization of the flow path geometry reduces noise while maintaining the temperature reduction benefit of direct guidance.
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 improves compressor efficiency by reducing power consumption, preventing plate deformation, and minimizing noise by ensuring efficient refrigerant flow and maintaining lower temperatures within the compressor, while also enhancing the durability of the high/low pressure separation plate.
Implementation Method 1
a discharge guide guiding a flow path of the refrigerant discharged from the compression chamber to the discharge pipe
Data Source
AI summary
A compressor may include a casing having a refrigerant inlet space therein that communicates with a suction pipe through which a refrigerant is suctioned into the casing; a high/low pressure separation plate that crosses an upper portion of a compression unit to partition the refrigerant inlet space positioned at a lower portion of the high/low pressure separation plate and a refrigerant discharge space positioned at an upper portion thereof; and a discharge guide. The discharge guide may be provided in the refrigerant discharge space and may be coupled with an upper surface of the high/low pressure separation plate to cover a communication hole of the high/low pressure separation plate that provides communication between the refrigerant inlet space and the refrigerant discharge space and at least a portion thereof may extend to a discharge pipe.