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A device and method for strengthening condensation heat exchange by utilizing ion wind

A technology of condensation heat exchange and ion wind, applied in indirect heat exchangers, cooling/ventilation/heating transformation, lighting and heating equipment, etc., can solve the problems of complex production process, poor durability, poor stability, etc., and achieve low energy consumption , Overcoming instability and promoting the effect of condensation heat transfer process

Active Publication Date: 2022-07-19
WUHAN UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Although this passive strengthening technology has a high strengthening effect, its production process is complicated, its stability is poor, and its durability is poor.

Method used

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  • A device and method for strengthening condensation heat exchange by utilizing ion wind

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Effect test

Embodiment 1

[0026] like figure 1 As shown in the figure, a device for enhancing condensation heat exchange by using ion wind, the main structure includes a vacuum condensation chamber 1, a needle tip electrode 2 arranged in the vacuum condensation chamber 1, a horizontal metal tube 4 vertically arranged with the needle tip electrode 2, a connection The water inlet pipe 6 and the water outlet pipe 7 at both ends of the horizontal metal pipe 4, the negative pressure high-voltage power supply 3 respectively connected to the needle tip electrode 2 and the horizontal metal pipe 4, the air inlet valve 8 and the air outlet valve 9 arranged in the vacuum coagulation chamber 1, the said The needle tip electrode 2 is connected to the negative pole of the negative pressure high voltage power supply 3 , the horizontal metal tube 4 is connected to the positive pole of the negative pressure high voltage power supply 3 , and the tip of the needle tip electrode 2 points to the horizontal metal tube 4 . T...

Embodiment 2

[0031] A method of using ion wind to strengthen condensation heat exchange, the flow rate is 0.5L / min, the temperature is 20°C (the temperature range is 10-60°C; the flow rate range is 0.1L / min-5L / min, the preferred flow rate in this embodiment is 0.5L / min, 20°C) circulating cooling water flows in from the inlet pipe 6 of the vacuum condensation chamber 1 and flows out from the outlet pipe 7; the temperature is 110°C, and the pressure is 0.14MPa (the temperature range is 90°C to 150°C; MPa~0.5MPa, in this embodiment, the gaseous working medium with a temperature of 110°C and a pressure of 0.14MPa is preferably introduced from the inlet valve 8 of the vacuum condensation chamber 1, and the outlet valve 9 of the vacuum condensation chamber 1 is only used for The residual gas is released after the work is finished. When the pressure of the gaseous working medium to be introduced reaches 0.01MPa and the temperature is 46°C (the temperature range is 30°C to 80°C; the pressure rang...

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Abstract

The invention belongs to the technical field of enhanced condensation heat exchange in thermal energy engineering, and in particular relates to a device and method for enhancing condensation heat exchange by utilizing ion wind. A horizontal metal pipe arranged vertically, a water inlet pipe and a water outlet pipe connected to both ends of the horizontal metal pipe, a negative pressure high-voltage power supply respectively connected to the needle tip electrode and the horizontal metal pipe, an air inlet valve and an air outlet valve arranged in the vacuum coagulation chamber, the needle tip The electrode is connected to the negative pole of the negative pressure high-voltage power supply, the horizontal metal tube is connected to the positive pole of the negative pressure high-voltage power supply, and the tip of the needle tip electrode points to the horizontal metal tube. The device of the present invention utilizes a negative pressure high-voltage power source to form a high electric field strength near the needle tip electrode, thereby generating ion wind, strengthening the migration process of the steam toward the condensation wall, thereby enhancing the condensation heat transfer effect.

Description

technical field [0001] The invention belongs to the technical field of strengthening condensation heat exchange in thermal energy engineering, and particularly relates to a device and method for strengthening condensation heat exchange by utilizing ion wind. Background technique [0002] Steam condensation is a common phenomenon that is easily observed in nature and is widely used in industry, such as heat pipes in notebooks, condensation towers in power plants, etc. When the temperature of the condensation surface is lower than the steam temperature, the steam will condense on the condensation surface, and this process is accompanied by the transfer of mass and energy. Energy is transferred from the steam to the condensation surface in the form of latent heat, and how to improve the heat transfer effect plays a crucial role in industrial applications. For example, if the heat exchange effect of the condensing part of the heat pipe in the electronic device can be enhanced, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D15/02H05K7/20
CPCF28D15/025H05K7/20336
Inventor 龚政郑怀苏振鹏
Owner WUHAN UNIV
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