Under-pressure flow boiling experiment device with four visible surfaces

Abstract

The invention provides an under-pressure flow boiling experimental device with four visible surfaces, and relates to the field of flow boiling heat transfer experimental devices. The under-pressure flow boiling experiment device with four visible surfaces comprises a heating assembly, and a heating element and a fixing part which are arranged on the heating assembly; and the heating assembly comprises a first flow guide plate and a second flow guide plate, the first flow guide plate and the second flow guide plate are both of a transparent structure, the second flow guide plate is arranged on the first flow guide plate, a flowing boiling channel is defined between the first flow guide plate and the second flow guide plate, and the heating element is arranged on the second flow guide plate. According to the under-pressure flow boiling experiment device with four visible surfaces, the sealing performance of a boiling chamber can be greatly improved, the dimension of the observation angle of the behavior characteristics of bubbles in the flow boiling channel chamber is greatly improved, and the safety of the heating element is greatly improved.

Description

technical field

[0001] The invention relates to the field of flow boiling heat transfer experimental devices, in particular to a four-sided visible flow boiling experimental device under pressure. Background technique

[0002] Flow boiling is widely used in equipment thermal management systems and energy power systems, and is ubiquitous in chemical, aerospace, nuclear energy and other fields. However, the heat transfer mechanism of flow boiling is still unclear. The behavior of the vapor phase in the flow boiling process has an important influence on the heat and mass transfer process. Therefore, the acquisition of the behavioral characteristics of vapor-liquid two-phase is very important for revealing the heat transfer mechanism of flow boiling. Visualization technology is a direct and effective way to obtain vapor-liquid behavior. In addition, the system pressure has a direct effect on the vapor-liquid behavior, so it is necessary to obtain the vapor-liquid behavior at ...

Examples

Embodiment 1

[0032] Please refer to Figure 1 ~ Figure 3 , figure 1 Shown is a top view of an embodiment of the invention, figure 2 for figure 1 The cross-sectional view at A, image 3 for figure 1 Sectional view at B.

[0033] This embodiment provides a pressure flow boiling experimental device that can be seen from all sides, including a heating assembly, a heating element and a fixed component arranged on the heating assembly; the heating assembly includes a first deflector 9 and a second deflector 5 , the first deflector 9 and the second deflector 5 are transparent structures, the second deflector 5 is arranged on the first deflector 9, between the first deflector 9 and the second deflector 5 The flow boiling channel 3 is defined and formed, and the heating element is arranged on the second guide plate 5 . The above-mentioned heating assembly is used to heat the experimental fluid to boiling, which facilitates the acquisition of experimental data. The above-mentioned heating el...

Embodiment 2

[0035] Please refer to figure 2 and image 3 , figure 2 for figure 1 The cross-sectional view at A, image 3 for figure 1 Sectional view at B.

[0036]This embodiment provides a pressure flow boiling experimental device that can be seen from all sides, which is basically the same as the experimental equipment provided in Embodiment 1. The main difference is that the heating assembly is provided with a water inlet 8 and a water outlet 10, and the water inlet 8 and The water outlets 10 are all in communication with the flow boiling channel 3 . The water inlet 8 is vertically arranged on the first deflector 9 , and passes through the first deflector 9 and communicates with the flow boiling channel 3 of the fixed part. The water inlet 8 is used to supply liquid to the fluid boiling channel 3, which is convenient and fast.

[0037] Similarly, the above-mentioned water outlet 10 is vertically arranged on the above-mentioned first deflector 9 , and passes through the first d...

Embodiment 3

[0039] Please refer to figure 2 and image 3 , figure 2 for figure 1 The cross-sectional view at A, image 3 for figure 1 Sectional view at B.

[0040] This embodiment provides a four-sided visible pressure flow boiling experimental device, which is basically the same as the experimental equipment provided in Embodiment 1. The main difference is that the heating element includes a transparent conductive coating layer 6 and an electrode column 2, and the transparent conductive coating layer 6 is connected to the electrode column 2, and the transparent conductive coating layer 6 is covered on the side of the second deflector 5 away from the first deflector 9. The above-mentioned transparent conductive coating layer 6 is used to convert electrical energy into heat energy, and transfer the generated heat energy to the inside of the flow boiling channel 3 through the second deflector plate 5, so as to facilitate heat generation and reduce heat loss during transfer. Moreover...

technical field

[0001] The invention relates to the field of flow boiling heat transfer experimental devices, in particular to a four-sided visible flow boiling experimental device under pressure. Background technique

[0002] Flow boiling is widely used in equipment thermal management systems and energy power systems, and is ubiquitous in chemical, aerospace, nuclear energy and other fields. However, the heat transfer mechanism of flow boiling is still unclear. The behavior of the vapor phase in the flow boiling process has an important influence on the heat and mass transfer process. Therefore, the acquisition of the behavioral characteristics of vapor-liquid two-phase is very important for revealing the heat transfer mechanism of flow boiling. Visualization technology is a direct and effective way to obtain vapor-liquid behavior. In addition, the system pressure has a direct effect on the vapor-liquid behavior, so it is necessary to obtain the vapor-liquid behavior at ...

Examples

Embodiment 1

[0032] Please refer to Figure 1 ~ Figure 3 , figure 1 Shown is a top view of an embodiment of the invention, figure 2 for figure 1 The cross-sectional view at A, image 3 for figure 1 Sectional view at B.

[0033] This embodiment provides a pressure flow boiling experimental device that can be seen from all sides, including a heating assembly, a heating element and a fixed component arranged on the heating assembly; the heating assembly includes a first deflector 9 and a second deflector 5 , the first deflector 9 and the second deflector 5 are transparent structures, the second deflector 5 is arranged on the first deflector 9, between the first deflector 9 and the second deflector 5 The flow boiling channel 3 is defined and formed, and the heating element is arranged on the second guide plate 5 . The above-mentioned heating assembly is used to heat the experimental fluid to boiling, which facilitates the acquisition of experimental data. The above-mentioned heating el...

Embodiment 2

[0035] Please refer to figure 2 and image 3 , figure 2 for figure 1 The cross-sectional view at A, image 3 for figure 1 Sectional view at B.

[0036]This embodiment provides a pressure flow boiling experimental device that can be seen from all sides, which is basically the same as the experimental equipment provided in Embodiment 1. The main difference is that the heating assembly is provided with a water inlet 8 and a water outlet 10, and the water inlet 8 and The water outlets 10 are all in communication with the flow boiling channel 3 . The water inlet 8 is vertically arranged on the first deflector 9 , and passes through the first deflector 9 and communicates with the flow boiling channel 3 of the fixed part. The water inlet 8 is used to supply liquid to the fluid boiling channel 3, which is convenient and fast.

[0037] Similarly, the above-mentioned water outlet 10 is vertically arranged on the above-mentioned first deflector 9 , and passes through the first d...

Embodiment 3

[0039] Please refer to figure 2 and image 3 , figure 2 for figure 1 The cross-sectional view at A, image 3 for figure 1 Sectional view at B.

[0040] This embodiment provides a four-sided visible pressure flow boiling experimental device, which is basically the same as the experimental equipment provided in Embodiment 1. The main difference is that the heating element includes a transparent conductive coating layer 6 and an electrode column 2, and the transparent conductive coating layer 6 is connected to the electrode column 2, and the transparent conductive coating layer 6 is covered on the side of the second deflector 5 away from the first deflector 9. The above-mentioned transparent conductive coating layer 6 is used to convert electrical energy into heat energy, and transfer the generated heat energy to the inside of the flow boiling channel 3 through the second deflector plate 5, so as to facilitate heat generation and reduce heat loss during transfer. Moreover...

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