Micro-scale collaborative surface structure for enhancing boiling heat transfer

A technology for strengthening the boiling and heat exchange structure, which is applied in the field of strengthening heat transfer to achieve the effect of promoting separation and enhancing the effect of boiling heat exchange.

Inactive Publication Date: 2019-07-05
DALIAN UNIV OF TECH
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiency of a

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Micro-scale collaborative surface structure for enhancing boiling heat transfer
  • Micro-scale collaborative surface structure for enhancing boiling heat transfer
  • Micro-scale collaborative surface structure for enhancing boiling heat transfer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.

[0014] Such as Figure 1~3 As shown, a micro-scale cooperative structure of surface enhanced boiling heat transfer, including large groove 1, small groove 2, connecting groove 3, micro-rib 4, base surface 5 and superhydrophobic coating 6; described enhanced boiling structure The surface of the base surface 5 is formed by mechanical cutting, structural electroplating or laser ablation to form a synergistic scale surface; the surface of the base surface 5 is divided by micro-ribs 4 to form large grooves 1, small grooves 2 and connecting grooves 3;

[0015] The large grooves 1 and the small grooves 2 are arranged in a staggered manner, and the large grooves 1 and the small grooves 2 are formed by a plurality of evenly spaced micro-ribs, and the width L3 of the micro-ribs is 50-100 μm; the grooves of the small ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Widthaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of enhanced heat transfer, and provides a micro-scale collaborative surface structure for enhancing boiling heat transfer. The structure comprises a largegroove, a small groove, a connecting groove, a micro rib, a base surface and a super-hydrophobic coating; the base surface of the structure for enhancing boiling heat transfer is subjected to mechanical cutting, structure electroplating or laser burning to form a synergistic scale surface; the surface of the base surface is divided into the large groove, the small groove and the connecting groovethrough ribs. According to the structure, the micro-scale collaborative surface structure can achieve the capillary force effect, so that a liquid can reach a vaporization core point faster, the requirement of the boiling heat transfer vaporization process on the scale can be further met under the condition of different superheat degrees, the connecting groove between the large groove and the small groove enables liquid between the grooves to interact, so that steam is easier to discharge, and then the boiling heat transfer is enhanced.

Description

technical field [0001] The invention belongs to the technical field of enhanced heat transfer, and designs a micro-scale synergistic surface structure that can regulate the bubble growth process. Background technique [0002] Among the many challenges of meeting the growing global energy demand in a sustainable manner, improving phase-change heat has been at the forefront of engineering research for decades. The high heat transfer rate associated with phase change heat transfer is critical for both energy and industrial applications, but phase change heat transfer suffers from inefficiency in heat transfer at low heat densities. Micro-nano-related technologies can enable surface size structures from molecules to centimeters. These technologies can obtain silicon-based surfaces, sintered structures, and polymeric coatings. Surfaces with different structures can influence the heterogeneous transformation process in practical situations. Boiling heat transfer refers to the va...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F28F13/00F28F13/18
CPCF28F13/00F28F13/185
Inventor 吕继组白敏丽高林松
Owner DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap