Analysis of Experimental Data on the Use of a Degassing and Ventilation Device for Degassing Gas Holders Containing Low-Pressure Propane Gas

The article discusses the main stages of the study of the developed degassing technology that ensures energy efficiency and environmental friendliness of the production process. The presented analysis substantiates the relevance of the study within the framework of the current legislation and industrial safety requirements for the organization of gas-hazardous works and the technical reliability of gas holders. It was noted that reducing the cost of degassing is one of the priority tasks of a scientific and applied nature, due to the fact that this process consumes significant energy resources, uses specially prepared water for steam and complex technological equipment that requires the involvement of highly qualified and specially trained specialists. The main technical characteristics and functional purpose of the unit elements are given, and the advantages of the developed degassing and ventilation device ДВУ-ФС[DVU-FS]-1/450 are described. On the basis of the study, the most effective empirical values of maximum permissible concentrations and the conditions for their achievement were determined, taking into account the calculations of the material balance. The main stages of gas tank degassing are substantiated and the dependencies of the duration of each of the three stages are mathematically determined using mathematical calculations. Based on the results of the experiment, the key stages of the study were evaluated, an analysis of the obtained control indicators was carried out, on the basis of which mathematical calculations and modeling of the process of the developed gas tank degassing technology were carried out. The dependence of the change in the oxygen concentration in the gas space of the gas holder on the time of degassing was revealed and the expediency of taking it into account when determining the criteria for the qualitative assessment of the process was determined. The obtained diagram of the change in oxygen concentration during degassing of a gas holder is presented, depending on the rate of its decrease at different stages, which together make it possible to determine the optimal degassing time and perform economic calculations to assess the efficiency of the process. Based on the presented main scientific and technical results, substantiated criteria for assessing the environmental friendliness of production activities and low energy consumption have been determined in comparison with steaming in the conditions of preparation of technological equipment for liquefied petroleum gases operating in a propane environment.

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