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Experimental apparatus for visualizing sulfuric acid vapor condensation and deposition

A technology of steam condensation and experimental equipment, which is applied in the direction of measuring equipment, material condensation, material thermal analysis, etc., to achieve the effect of convenient operation, low cost and simple structure

Pending Publication Date: 2016-12-14
HUANENG POWER INT INC +1
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  • Abstract
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Problems solved by technology

At present, there is no effective experimental method to measure the condensation deposition process such as nucleation density, and can only rely on numerical simulation and theoretical analysis

Method used

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  • Experimental apparatus for visualizing sulfuric acid vapor condensation and deposition
  • Experimental apparatus for visualizing sulfuric acid vapor condensation and deposition

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Experimental program
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Embodiment Construction

[0022] The present invention is described in further detail below in conjunction with accompanying drawing:

[0023] refer to figure 1 , the experimental device for visualization of sulfuric acid vapor condensation deposition according to the present invention comprises a circulating coolant tank 1, an aluminum plate 5, a condensation copper plate 9, a light source 14, an observation cover 6, a high-speed camera 13, a computer 10, a data acquisition board 11 and The temperature control heating rod 3 used to control the temperature of the cooling liquid in the circulating cooling liquid tank 1; the condensing copper plate 9 is located on the aluminum plate 5, and the bottom opening of the observation cover 6 is fixed on the condensing copper plate 9; The groove of the thermocouple 12 is embedded, and the cooling liquid channel 15 is opened in the aluminum plate 5. The left side, the right side and the top surface of the observation cover 6 are all transparent structures, and th...

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Abstract

The invention discloses an experimental apparatus for visualizing sulfuric acid vapor condensation and deposition, which comprises a circulating coolant tank, an aluminium plate, a condensing copper plate, light sources, an observation cover, a high-speed camera, a computer, a data acquisition board and a temperature control heating rod for controlling the temperature of coolant in the circulating coolant tank. The condensing copper plate is located upon the aluminium plate, the bottom opening of the observation cover is fixed on the condensing copper plate, the side of the condensing copper plate is provided with a plurality of recesses in which thermocouples are embedded, the inside of the aluminium plate is provided with a coolant passage, each of the left side, right side and top side of the observation cover is of a transparent structure, the front side and rear side of the observation cover are respectively provided with a vapor inlet and a vapor outlet, the light sources are aimed at the left side and right side of the observation cover, and the high-speed camera is aimed at the top side of the observation cover. The system can conveniently and visually research the condensation and deposition characteristics of sulfuric acid vapor by visualization.

Description

technical field [0001] The invention belongs to the field of thermal energy engineering and relates to a visualization experiment system, in particular to an experiment device for visualization of sulfuric acid vapor condensation deposition. Background technique [0002] The sulfur in the boiler coal is burned to generate sulfur dioxide. Under the action of the catalyst, part of the sulfur dioxide reacts with oxygen to generate sulfur trioxide, and then the sulfur trioxide combines with the water vapor in the flue gas to generate sulfuric acid vapor. The sulfuric acid vapor in the flue gas will condense and deposit on the surface of the boiler equipment whose wall temperature is lower than the acid dew point, and chemically react with the metal materials of the equipment, causing low-temperature corrosion. At present, there are two types of equipment walls in coal-fired power stations that are hardest hit by low-temperature corrosion: one is the air preheater, which uses the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/14G01N21/84
CPCG01N21/84G01N25/142
Inventor 吴帅帅赵瀚辰姚明宇李红智
Owner HUANENG POWER INT INC
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