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| Saturation Humidification Technology for Salt Tank Based on Diffuser |
| Received:November 10, 2022 Revised:January 04, 2023 |
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| DOI：10.7643/issn.1672-9242.2023.08.021 |
| KeyWord:salt spray test stability of salt solution concentration saturated barrel wet heating diffuser gas water separator |
| Author | Institution |
| MA Ping-chang |
Beijing Institute of Structure and Environment Engineering, Beijing , China |
| LIU Yue |
Beijing Institute of Structure and Environment Engineering, Beijing , China |
| GAO Fei |
Beijing Institute of Structure and Environment Engineering, Beijing , China |
| RUI Peng |
Beijing Institute of Structure and Environment Engineering, Beijing , China |
| CUI Ying-wei |
Tianjin Aerospace Reliability Technology Co., Ltd., Beijing Branch, Beijing , China |
| LU Zi-zhao |
Tianjin Aerospace Reliability Technology Co., Ltd., Beijing Branch, Beijing , China |
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| Abstract: |
| The work aims to carry out the design and research of the saturated barrel in salt tank in order to improve the wet heating performance of the saturated barrel in salt tank and ensure the stability of the salt solution concentration during salt fog deposition process in salt spray test. The structure of the compressed air inlet and outlet of the saturated barrel was designed. The diffuser was used at the inlet to improve wet heating efficiency, and the gas water separator was set at the outlet to separate the gas and water at the outlet, so as to form relatively "clean" saturated wet air. In order to verify the effectiveness of the saturation humidification method, the performance of the saturated barrel was tested. The test results showed that the diffuser could make the air flow in the water form a stable flow, effectively inhibit the surge of the air flow through the liquid surface, avoid the droplet splash and increase the contact area between compressed air and deionized water. When the air supply pressure was 50 kPa~150 kPa, the relative humidity of the air flow at the outlet of the saturated barrel could reach more than 83%~90% at different temperature, and there was no obvious water jet in the outlet channel during the test. Through the design of saturated barrel, the efficiency of wet heating is effectively improved, and the relatively ements of salt spray test. |
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