All-round visual pool boiling experimental device

Abstract

The present invention provides an all-round visual pool boiling experimental device, which includes an observation container, a heating assembly and a condensation assembly, the heating assembly includes a fixed bracket and an ITO heating glass installed on the fixed bracket, and the observation container includes a container body and The observation window, the container body includes four sides and the bottom plate of the container, the bottom plate of the container is provided with ITO heating glass installation holes, the heating assembly is installed on the bottom of the container body through the installation holes of the ITO heating glass, the heating assembly is fixed outside the container bottom plate, and the four sides of the container body An opening is set, an observation window is installed at the opening position, and a condensing assembly is installed on the upper end inside the container body, and the condensing assembly includes a condensing pipe and two joints for connecting external pipelines. The invention can simulate the pool boiling in the industrial equipment, and conduct visual research on the flow and heat transfer characteristics of the fluid working medium. The device has a simple and compact structure, convenient visual observation, and a wide range of research working conditions.

Description

technical field

[0001] The invention relates to a pool type boiling experimental device, in particular to an all-round visual pool type boiling experimental device. Background technique

[0002] Pool boiling is common in the energy engineering industry. Pool boiling can greatly improve the heat transfer capacity of pool heating working fluid. Therefore, the cognition of pool boiling characteristics is helpful to improve the energy utilization process and improve the utilization efficiency. Many scholars at home and abroad have made a lot of research on this. The behavior of bubbles is a key factor in the study of pool boiling, while traditional experimental methods can only study macroscopically, but cannot study the microscopic behavior of bubbles. In the study of pool boiling, the process of bubbles leaving the heating surface is very important, but traditional pool boiling uses metal heating to achieve and maintain the boiling of the working fluid. This type of traditio...

Examples

Embodiment example 1

[0015] Implementation Case 1: Combining Figure 1 to Figure 5 , the present invention includes an observation container 1, a heating assembly 2 and a condensation assembly 3, the heating assembly 2 includes a fixed bracket 8 and an ITO heating glass 7 installed on the fixing bracket 8, the ITO heating glass 7 can realize and maintain the studied working medium The boiling state, and the fixed bracket 8 fixes the ITO heating glass 7, which contains wires, and the wires are connected to the external circuit to provide heating electricity for the ITO heating glass 7. Using the ITO heating glass 7 as a heating element can maximize the heating of the wall surface. The boiling phenomenon can be studied visually to realize direct research on the bubble growth process, and observation can be performed on the back of the bubble; the observation container 1 includes a container body 4 and an observation window 5, and the container body 4 includes four sides and a container bottom plate 6...

Embodiment example 2

[0018] Implementation Case 2: According to the all-round visual pool-type boiling experimental device described in Embodiment Case 1, a second ITO heating glass installation hole 13 is provided on the side of the container body 4, and the second heating assembly is installed through the ITO heating glass installation hole 13 On the container body 4 sides. That is to say, the present invention is respectively provided with heating components 2 on the bottom surface and the side surface of the observation container 1, which can complete the different effects on the bubbles produced by the different positions of the heating surface, that is, can study the generation process of the bubbles at different heating positions, and realize the different heating components. A study of the effect of location on pool boiling.

Embodiment example 3

[0019] Example 3: According to the all-round visual pool boiling experimental device described in Example 1 and Example 2, a container cover 11 is provided on the upper part of the container body 4 , and an observation window 5 is provided on the container cover 11 . In this way, not only can the research on the pool boiling of ordinary liquids be realized, but for some volatile heating working fluids, if there is no container cover 5, the working fluid will gradually decrease as the heating progresses, which will affect the experiment, so the container cover is provided After 5, this effect can be avoided.

technical field

[0001] The invention relates to a pool type boiling experimental device, in particular to an all-round visual pool type boiling experimental device. Background technique

[0002] Pool boiling is common in the energy engineering industry. Pool boiling can greatly improve the heat transfer capacity of pool heating working fluid. Therefore, the cognition of pool boiling characteristics is helpful to improve the energy utilization process and improve the utilization efficiency. Many scholars at home and abroad have made a lot of research on this. The behavior of bubbles is a key factor in the study of pool boiling, while traditional experimental methods can only study macroscopically, but cannot study the microscopic behavior of bubbles. In the study of pool boiling, the process of bubbles leaving the heating surface is very important, but traditional pool boiling uses metal heating to achieve and maintain the boiling of the working fluid. This type of traditio...

Examples

Embodiment example 1

[0015] Implementation Case 1: Combining Figure 1 to Figure 5 , the present invention includes an observation container 1, a heating assembly 2 and a condensation assembly 3, the heating assembly 2 includes a fixed bracket 8 and an ITO heating glass 7 installed on the fixing bracket 8, the ITO heating glass 7 can realize and maintain the studied working medium The boiling state, and the fixed bracket 8 fixes the ITO heating glass 7, which contains wires, and the wires are connected to the external circuit to provide heating electricity for the ITO heating glass 7. Using the ITO heating glass 7 as a heating element can maximize the heating of the wall surface. The boiling phenomenon can be studied visually to realize direct research on the bubble growth process, and observation can be performed on the back of the bubble; the observation container 1 includes a container body 4 and an observation window 5, and the container body 4 includes four sides and a container bottom plate 6...

Embodiment example 2

[0018] Implementation Case 2: According to the all-round visual pool-type boiling experimental device described in Embodiment Case 1, a second ITO heating glass installation hole 13 is provided on the side of the container body 4, and the second heating assembly is installed through the ITO heating glass installation hole 13 On the container body 4 sides. That is to say, the present invention is respectively provided with heating components 2 on the bottom surface and the side surface of the observation container 1, which can complete the different effects on the bubbles produced by the different positions of the heating surface, that is, can study the generation process of the bubbles at different heating positions, and realize the different heating components. A study of the effect of location on pool boiling.

Embodiment example 3

[0019] Example 3: According to the all-round visual pool boiling experimental device described in Example 1 and Example 2, a container cover 11 is provided on the upper part of the container body 4 , and an observation window 5 is provided on the container cover 11 . In this way, not only can the research on the pool boiling of ordinary liquids be realized, but for some volatile heating working fluids, if there is no container cover 5, the working fluid will gradually decrease as the heating progresses, which will affect the experiment, so the container cover is provided After 5, this effect can be avoided.

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