Heat Exchanger Housing Segmentation for Core Body Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-pressure heat exchangers face challenges in enhancing connection strength and sealing between the heat exchange core body and housing, particularly due to the need for effective sealing between the connecting block and the housing, as well as between the housing's upper and lower portions.
Innovation Solution
The heat exchanger design includes a core body with heat exchange pipes, a housing with a first cavity and a connecting block fixed outside the cavity, where the core body is fixedly arranged within the cavity, and flow-through holes facilitate communication between the heat exchange pipes, enhancing connection strength and sealing through a solder composite layer and a protruding portion for improved positioning and welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the connecting block and heat exchange core body are arranged in the cavity after being integrally formed, then the connection strength is improved, but the sealing complexity increases due to multiple sealing structures required
Solution Approach 1:
The housing is divided into a first housing and a second housing, with the connecting block arranged in the first housing and the heat exchange core body in the second housing. This segmentation allows separate sealing structures for each housing, simplifying the overall sealing design compared to a single integrated cavity while maintaining connection strength through the distributed arrangement.
Solution Approach 2:
A sealing ring is introduced as an intermediary component between the connecting block and the first housing, and another sealing ring between the heat exchange core body and the second housing. These intermediary sealing elements simplify the sealing structure by using standardized components rather than complex integrated sealing designs.
2Adaptability or versatility
If the housing is divided into upper and lower portions to accommodate the heat exchange core body, then the accommodation flexibility is improved, but the sealing requirements increase with additional sealing structures
Solution Approach 1:
The housing is segmented into a first housing for the connecting block and a second housing for the heat exchange core body. This segmentation provides accommodation flexibility by allowing independent positioning and sizing of each housing portion, while the sealing complexity is managed through standardized sealing rings at each interface.
Solution Approach 2:
The sealing rings serve multiple functions: they provide sealing at the interfaces between the connecting block and first housing, and between the heat exchange core body and second housing. This universal sealing component approach reduces overall sealing structure complexity by using the same type of sealing element in multiple locations.
3Reliability
If traditional assembly methods are used with multiple sealing structures, then the sealing coverage is improved, but the assembly time and manufacturing complexity increase
Solution Approach 1:
The connecting block and heat exchange core body are pre-arranged in their respective housings with sealing rings pre-installed at the interfaces. This preliminary arrangement allows for simpler final assembly operations, improving assembly speed while maintaining sealing reliability through the pre-positioned sealing structures.
Solution Approach 2:
Standardized sealing rings are used as intermediary components that simplify the assembly process. These universal sealing elements can be quickly installed at multiple interfaces without requiring complex assembly operations, thereby improving productivity while ensuring reliable sealing.
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 strengthens the connection between the core body and housing, improves sealing, reduces the risk of leakage, and enhances heat exchange efficiency by ensuring uniform fluid distribution and reducing the risk of relative movement between components.
Implementation Method 1
a side of the first body in contact with the core body and the side of the core body in contact with the first body are both provided with a solder composite layer
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
A heat exchanger comprising a housing and a core body accommodated in the housing. The housing comprises a first body (1) and a second body (2). The first body (1) is a metal material. The second body (2) is a plastic material. The first body (1) and the second body (2) are connected to each other so as to form a first cavity. The core body is accommodated in the first cavity. The core body is fixedly connected to the first body (1). The core body comprises multiple heat exchange tubes (31). A first fluid channel is formed between the heat exchange tubes (31). A second fluid channel is formed in the heat exchange tube (31). The heat exchanger further comprises a connecting block (4). The connecting block (4) is fixed to the first body (1), and the connecting block (4) is located outside the first cavity. The connecting block (4) is provided with a first flow-through hole (41). The first body (1) is provided with a second flow-through hole (11). The second flow-through hole (11) communicates with the first flow-through hole (41) and the second fluid channel. The invention has improved connection strength between the core body and the first cavity.