Economizer component and refrigeration system thereof
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Solution Overview
Problem
The complexity of pipe passages in large-scale refrigeration systems with economizers leads to reduced efficiency and reliability, particularly when using multi-stage compressor units with low evaporation temperatures, resulting in reduced refrigerating capacity and high exhaust temperatures.
Innovation Solution
An economizer component with a housing containing an economizer chamber and an inter-stage flow path chamber, connected via specific ports, eliminates the need for inter-stage pipe passages by allowing direct fluid connection and air supplementation between compressor stages, simplifying the layout and enhancing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an economizer is added to a large-scale refrigeration system, then refrigeration efficiency and refrigerating capacity are improved, but the complexity of pipe passages and overall layout increases
Solution Approach 1:
The economizer component merges the economizer chamber and inter-stage flow path chamber into a single integrated housing structure. The connecting passages are incorporated within the housing itself rather than requiring external pipe connections, thereby simplifying the overall pipe layout while maintaining the refrigeration efficiency benefits of the economizer.
Solution Approach 2:
The housing serves multiple functions: it contains both the economizer chamber and inter-stage flow path chamber, provides connecting ports for both economizer and compressor connections, and integrates the passages that would otherwise require separate external piping. This multi-functionality reduces the overall complexity of the refrigeration system layout.
2Productivity
If an economizer is added to a large-scale refrigeration system, then refrigeration efficiency and refrigerating capacity are improved, but the overall layout becomes troublesome and complex
Solution Approach 1:
The economizer component merges the economizer chamber and inter-stage flow path chamber into a single integrated housing structure. The connecting passages are incorporated within the housing itself rather than requiring external pipe connections, thereby simplifying the overall pipe layout while maintaining the refrigeration efficiency benefits of the economizer.
Solution Approach 2:
The housing is segmented into distinct chambers (economizer chamber and inter-stage flow path chamber) separated by a separator, allowing independent functionality of each chamber while maintaining a compact integrated structure. This segmentation enables clear functional separation without requiring complex external piping arrangements.
3Temperature
If conventional multi-stage compressor unit is used with low evaporation temperature, then refrigeration system can operate at low temperatures, but efficiency and refrigerating capacity are reduced and exhaust temperature increases
Solution Approach 1:
The economizer chamber acts as an intermediary between the condenser and evaporator, providing a intermediate heat exchange stage. This allows the system to operate efficiently at low evaporation temperatures by pre-cooling the refrigerant and recovering heat, thereby maintaining refrigeration efficiency while achieving low temperature operation.
Solution Approach 2:
The economizer utilizes phase transition of the refrigerant (liquid-vapor equilibrium) in the economizer chamber to achieve heat exchange. By controlling the phase transition at the intermediate pressure stage, the system can efficiently handle low evaporation temperatures while maintaining good refrigeration efficiency and reducing compressor exhaust temperature.
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 simplifies the overall layout, improves refrigeration efficiency, reduces compressor exhaust temperature, and ensures system reliability by eliminating complex pipe passages, resulting in a more compact and efficient refrigeration system.
Implementation Method 1
An economizer is a common member in a large-scale refrigeration system and is used to enable throttling and evaporation of a part of a refrigerant to absorb heat
Implementation Method 2
evaporation of a part of a refrigerant to absorb heat
Implementation Method 3
a float valve 151 is provided in the float chamber 150 to control on/off and an opening degree according to a liquid level in the float chamber 150
Data Source
AI summary
The present invention provides an economizer component, including: a housing; an economizer chamber and an inter-stage flow path chamber, formed inside the housing by using a separator; a condenser connecting port and an evaporator connecting port, disposed on the economizer chamber; a first connecting port and a second connecting port, connected in a multi-stage compressor unit and disposed on the inter-stage flow path chamber; and the economizer chamber being in fluid connection with the inter-stage flow path chamber inside the housing. The economizer component provided in the present invention can reduce complexity of pipe passages of a refrigeration system in which the economizer component is applied.