Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Intelligent surface heat exchange tube with hydrophilic and hydrophobic conversion function and control system of intelligent surface heat exchange tube

A technology of heat exchange tubes and hydrophobicity, which is applied in the field of intelligent surface heat exchange tubes and their control systems, can solve the problems of inability to meet the surface affinity and hydrophobicity of the heat exchange process, the deterioration of the heat exchange process, and the difficulty of replenishing liquid on the wall, so as to reduce the phenomenon of drying up , enhance infiltration, and promote the effect of supplementation

Pending Publication Date: 2022-05-13
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the effect of gravity in the tube, the liquid film on the upper tube wall is distributed as "thin at the top and thick at the bottom". During the heat exchange process, it is difficult to replenish the liquid on the upper wall. Dry out, heat transfer process deteriorates
[0006] Strengthening the vapor-liquid phase transition has always been a key research content in the field of heat transfer. At present, the heat transfer structure in the current energy system uses industrial materials (such as copper, aluminum, stainless steel, etc.) However, the requirements for surface properties are different at different stages of the vapor-liquid phase transition, which cannot meet the dynamic demand changes in the heat transfer process to achieve surface affinity transformation.

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
  • Intelligent surface heat exchange tube with hydrophilic and hydrophobic conversion function and control system of intelligent surface heat exchange tube
  • Intelligent surface heat exchange tube with hydrophilic and hydrophobic conversion function and control system of intelligent surface heat exchange tube
  • Intelligent surface heat exchange tube with hydrophilic and hydrophobic conversion function and control system of intelligent surface heat exchange tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Such as Figure 1~Figure 5 Shown is an intelligent surface heat exchange tube with hydrophilic-hydrophobic conversion. The heat exchange tube is composed of a conductive end 1 and a base tube 2. The conductive end 1 is located at both ends of the base tube 2. The inner surface of the base tube 2 is divided into intervals along the circumferential direction. 3 and the smart surface area 4, the spacer 3 and the smart surface area 4 are multiple on the inn...

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

No PUM Login to View More

Abstract

The invention provides a hydrophilic and hydrophobic conversion intelligent surface heat exchange tube and a control system thereof, the inner surface of a base tube is divided into a spacer region and an intelligent surface region in the circumferential direction, an insulating layer I, a conductive layer, a porous layer and an insulating layer II are sequentially constructed in the intelligent surface region from the inner wall of the tube, and finally hydrophobic groups are electrified and sprayed on the insulating layer II. The exterior of the base tube is divided into a plurality of sections at equal intervals, thermocouples are welded to the upper end and the lower end of each section to monitor the temperatures of the upper end and the lower end of the section, the temperatures are fed back to a computer, and the computer adjusts currents of all the channels of the multi-channel direct-current power source to enable charged hydrophobic groups to move. And the inner surface of the pipe is subjected to hydrophilic-hydrophobic conversion in a spatio-temporal level. In the heat exchange process of the heat exchange tube, wettability transformation of the inner surface of the tube can be achieved according to different flow patterns, phase distribution in the tube is regulated and controlled, a multiphase flow structure and heat transfer are coordinated, and the heat transfer effect is improved.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to an intelligent surface heat exchange tube with hydrophilic-hydrophobic conversion and a control system thereof. Background technique [0002] As an efficient energy transfer method, phase change heat transfer is widely used in various aspects of industrial applications and production and life. Through the dynamic changes of vapor-liquid phase change from the initial nucleation to the final detachment of bubbles\droplets, it can be divided into Both condensation heat transfer and boiling heat transfer. [0003] However, in boiling / condensing heat transfer, as the vapor-liquid phase transition process of the heat exchange tube continues, the requirements for surface properties are different at different stages. [0004] In the condensation heat transfer process, the hydrophilic surface with high surface energy can reduce the vapor nucleation energy and promote the droplet ...

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): F28F13/00F28F13/04F28F13/18F28D20/02
CPCF28F13/04F28F13/185F28F13/00F28D20/02F28F2013/008F28F2245/02F28F2245/04Y02E60/14
Inventor 曹泷王光辉赵露星吴学红杨辉
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products