A heat exchange system
By incorporating an economizer and ejector assembly, the heat from the gaseous refrigerant is used to evaporate the liquid refrigerant, solving the problems of large space occupation and high cost in heat exchange systems. This achieves system compactness and cost reduction, while also improving lubricant recovery efficiency and system reliability.
CN224340366UActive Publication Date: 2026-06-09QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
Existing heat exchange systems occupy a large space, have high piping costs, and the mixing of lubricating oil and refrigerant affects the heat exchange performance of the evaporator and may damage the compressor.
Method used
It adopts a structure with a built-in economizer, which uses the heat of gaseous refrigerant to evaporate liquid refrigerant, reducing serpentine pipes. Combined with ejector components and pump system, it separates and recovers lubricating oil, reducing system space and cost.
Benefits of technology
This improved the space utilization of the heat exchange system, reduced pipe length and cost, while also enhancing system reliability and lubricant recovery efficiency, and reducing damage to the compressor.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224340366U_ABST
Abstract
This application relates to the technical field of heat exchange and discloses a heat exchange system. The heat exchange system includes a compressor; a condenser connected to the compressor; an evaporator connected to both the compressor and the condenser; an oil tank connected to the compressor and configured to contain lubricating oil from the compressor; an economizer having a first inner cavity and a second inner cavity separated from each other, the first inner cavity being connected to the condenser, compressor, and evaporator, and the second inner cavity being connected to the evaporator and the oil tank; and an ejector assembly connected to the evaporator, condenser, second inner cavity, and oil tank, configured to deliver lubricating oil and a portion of liquid refrigerant from the evaporator to the second inner cavity; under the heat of the gaseous refrigerant in the economizer, the liquid refrigerant in the second inner cavity evaporates and flows to the evaporator; the ejector assembly is configured to deliver lubricating oil from the second inner cavity to the oil tank. The heat exchange system provided by this application occupies less space and has lower cost.
Need to check novelty before this filing date? Find Prior Art