Condenser
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Solution Overview
Problem
Conventional shell and tube condensers face inefficiencies in heat exchange due to reduced gaseous refrigerant flow rate and difficulty in diffusing refrigerant to heat exchange tubes in the middle and bottom sections, leading to lower condensation and heat exchange efficiency.
Innovation Solution
The use of baffles and guide plates in the condenser design to increase the flow rate of gaseous refrigerant, facilitate the breakdown of liquid films on heat exchange tubes, and improve the diffusion of refrigerant to the middle and bottom sections, enhancing heat exchange efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional shell and tube condenser design is used, then结构简单 (structure is simple), but heat exchange efficiency is low
Solution Approach 1:
The condenser is divided into multiple sections with different heat exchange tube arrangements (first, second, and third heat exchange tube sets) and multiple baffles (first, second, and third baffles) to segment the refrigerant flow path. This segmentation allows optimized heat exchange in different zones while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The patent introduces vertical fluid channels and horizontal fluid channels to create three-dimensional refrigerant flow paths. The first vertical fluid channel connects the first accommodating space to the second accommodating space, while the horizontal fluid channel provides lateral flow distribution, adding spatial dimensions to improve heat exchange efficiency without excessive structural complexity.
2Speed
If refrigerant flow rate is reduced, then energy consumption decreases, but diffusion of refrigerant to middle and bottom sections becomes difficult
Solution Approach 1:
Multiple baffles serve as intermediary structures to guide and distribute refrigerant flow. The first baffle guides refrigerant from the first accommodating space to the horizontal fluid channel, the second baffle directs flow to the second accommodating space via the vertical fluid channel, and the third baffle similarly serves the third accommodating space. These intermediaries ensure efficient diffusion to middle and bottom sections while maintaining appropriate flow rates.
Solution Approach 2:
The patent extracts the flow distribution function into separate baffle components and fluid channels, rather than relying on simple gravity-driven flow. By taking out the guidance function into dedicated structural elements (baffles and channels), the system achieves better refrigerant diffusion without requiring high flow rates, thus balancing speed and ease of operation.
3Quantity of substance
If liquid film on heat exchange tubes is thick, then condensation capacity increases, but heat exchange efficiency decreases
Solution Approach 1:
The patent utilizes hydraulic principles in the design of fluid channels and baffles to control refrigerant and condensate flow. The horizontal fluid channel and vertical fluid channels are designed to maintain proper liquid levels and flow rates, while the baffles create hydraulic guidance paths that prevent excessive liquid film accumulation on heat exchange tubes, thereby maintaining heat exchange efficiency while allowing adequate condensation.
Solution Approach 2:
The patent changes the spatial arrangement parameters of heat exchange tubes and baffles to optimize heat exchange. By adjusting the positions and orientations of the first, second, and third heat exchange tube sets relative to the baffles and fluid channels, the system achieves better heat exchange efficiency while maintaining appropriate condensate quantity through modified flow distribution patterns.
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
The baffle and guide plate configuration increases the flow rate of gaseous refrigerant, allowing easier diffusion and improving condensation and heat exchange efficiency, particularly in the middle and bottom sections of the condenser, thereby enhancing overall heat exchange performance.
Implementation Method 1
The baffle and guide plate configuration increases the flow rate of gaseous refrigerant
Implementation Method 2
a high-temperature gaseous refrigerant discharged from a compressor enters the condenser via a refrigerant inlet for heat exchange with a cooling medium flowing inside a heat exchange tube, and is condensed at the surface of the heat exchange tube
Implementation Method 3
is condensed at the surface of the heat exchange tube
Data Source
AI summary
The present application provides a condenser, comprising: a housing, a first heat exchange tube set, a second heat exchange tube set, and a third heat exchange tube set, a pair of first baffles, a second baffle, and a third baffle, the second heat exchange tube set and the third heat exchange tube set being arranged at two sides of the first heat exchange tube set, each of the pair of first baffles being respectively adjacent to the two sides of the first heat exchange tube set, the second baffle being adjacent to one side of the second heat exchange tube set that is close to the first heat exchange tube set, and the third baffle being adjacent to one side of the third heat exchange tube set that is close to the first heat exchange tube set, wherein the pair of first baffles, the second baffle, and the third baffle are configured to cause the first heat exchange tube set to receive a refrigerant from a refrigerant inlet, and cause the second heat exchange tube set and the third heat exchange tube set to receive the refrigerant from the first heat exchange tube set via a horizontal fluid channel, and a first vertical fluid channel and a second vertical fluid channel. The condenser in the present application has high heat exchange efficiency.