Heat Exchanger Coating with Micro-Nano Particles for Durability
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Solution Overview
Problem
Existing heat exchanger hydrophilic coatings have poor durability, leading to inadequate drainage performance and short service life, failing to meet practical application requirements.
Innovation Solution
A heat exchanger with a coating layer comprising micro-nano particles and a polymer obtained by polymerizing allylic monomers, such as silicon dioxide and titanium dioxide, which enhances hydrophilic durability by forming a compact and wear-resistant micro-nano structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hydrophilic coating is applied to improve drainage performance, then drainage performance is improved, but hydrophilic durability deteriorates
Solution Approach 1:
The patent uses a composite coating material consisting of micro-nano particles (silicon dioxide and/or titanium dioxide) combined with a polymer matrix formed from allylic monomers with hydrophilic groups. This composite structure integrates the hydrophilic properties of the particles with the durability and compactness of the polymer, resolving the contradiction between initial hydrophilic performance and long-term durability
Solution Approach 2:
The patent modifies the chemical composition and molecular structure of the coating material by using specific allylic monomers with hydrophilic groups that can polymerize to form a durable matrix. This parameter change in material composition enables the coating to maintain hydrophilic properties while achieving enhanced durability through the cross-linked polymer structure
2Reliability
If coating compactness is increased to improve wear resistance, then wear resistance is improved, but coating complexity increases
Solution Approach 1:
The patent achieves compactness through chemical parameter changes - using allylic monomers that polymerize to form a dense cross-linked network. This chemical approach creates a compact structure without requiring complex multi-layer physical structures, thus improving wear resistance while controlling structural complexity
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 solution provides a heat exchanger with improved hydrophilic durability, ensuring better drainage performance and extended service life by maintaining hydrophilicity and resistance to wear and corrosion.
Implementation Method 1
a polymer obtained by polymerizing monomers, the micro-nano particles include silicon dioxide and/or titanium dioxide, and the monomers corresponding to the polymer include allylic monomers with hydrophilic groups
Implementation Method 2
the coating layer includes micro-nano particles and a polymer obtained by polymerizing monomers, the micro-nano particles include silicon dioxide and/or titanium dioxide
Implementation Method 3
the monomers corresponding to the polymer include allylic monomers with hydrophilic groups
Data Source
AI summary
A heat exchanger, a processing method of a heat exchanger and a composite material, wherein the heat exchanger includes a collecting pipe, a fin and a number of heat exchange tubes. Each of the heat exchange tubes is fixed to the collecting pipe, and an inner cavity of the heat exchange tube is communicated with an inner cavity of the collecting pipe. The fin is retained between two adjacent heat exchange tubes. The heat exchanger further includes a coating layer which is coated on an outer surface of at least one of the collecting pipe, the heat exchange tube and the fin. The coating layer includes micro-nano particles and a polymer obtained by polymerizing monomers including allylic monomers with hydrophilic groups. The micro-nano particles include silicon dioxide and/or titanium dioxide. The coating layer of the heat exchanger has excellent hydrophilic durability.