Experimental device for testing open type adsorption performance in wide humidity working condition range

By designing a test open adsorption performance experimental device with a wide humidity working range, including a compressed humidity adjustment system and an automatic weighing device, the problems of limitations and experimental errors in the prior art are solved, and precise regulation of extremely low humidity and stability of experimental conditions are achieved.

CN119715234APending Publication Date: 2025-03-28SHANGHAI MARITIME UNIVERSITY
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Patent Information

Application Number
CN202411787495.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing constant temperature and humidity chambers have limitations in the humidity control range and cannot meet the environmental simulation requirements of less than 35% RH or higher than 95% RH. At the same time, when conducting open adsorption experiments on adsorbents, frequent opening and closing of the box door will destroy the constant temperature and humidity state, resulting in experimental errors.

Method used

A test open adsorption performance experimental device with a wide humidity operating range was designed, including a constant temperature and humidity box, a circulating air duct, an automatic weighing device and a compressed humidity adjustment system. The compressed humidity regulation system achieves precise control of humidity through special drying systems, drying systems, conventional systems and humidification systems, and can achieve working conditions that are more than 40% RH lower than the ambient humidity or more than 10% RH higher than the ambient humidity. The automatic weighing device realizes automatic weighing and recording of samples through a conveying assembly and a pressure sensor.

Benefits of technology

Accurate control of extremely low relative humidity is achieved, the humidity working range of open adsorption performance test is broadened, the experimental environment fluctuations caused by frequent opening and closing of box doors are avoided, and the stability and repeatability of experimental conditions are ensured.

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Abstract

The invention relates to an experimental device for testing open adsorption performance in a wide humidity working condition range. The experimental device specifically comprises a constant-temperature and constant-humidity chamber, a circulating air duct, an automatic weighing device arranged in the constant-temperature and constant-humidity chamber and a compression type humidity adjusting system. The compression type humidity adjusting system comprises the following subsystems: an ultra-dry system consisting of a constant-temperature and constant-humidity chamber, a circulating air duct and a refrigeration module; the drying system consists of a constant-temperature and constant-humidity chamber, a circulating air duct and a drying module; the conventional system is composed of a constant-temperature and constant-humidity chamber, a circulating air duct, a drying module, an air purification module and a humidification module; the humidifying system consists of a constant-temperature and constant-humidity chamber, a circulating air duct and a humidifying module; the experimental device for testing the open adsorption performance further comprises an Internet of Things control system. Compared with the prior art, the experimental device for testing the open adsorption performance in the wide humidity working condition range can realize accurate regulation and control of relatively low relative humidity, and experimental environment fluctuation caused by frequent opening and closing of the box door is avoided.
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