Liquid ammonia storage tank filling factor
Thread Content
In AQ/T3017—2008 \"Guidelines for the Implementation of Safety Standardization in Ammonia Synthesis Enterprises\", 5.5.4.3, g) it is prohibited for the filling level of liquid ammonia tanks to exceed 85% of the tank’s capacity. In GB50160-2008 \"Code for Fire Protection Design of Petrochemical Enterprises\", 6.3.9 states that the storage coefficient for tanks storing liquefied hydrocarbons, liquid ammonia, etc., should not be greater than 0.9. In the \"Regulations on Safety Inspection of Pressure Vessels\", Article 36 stipulates that the designed storage capacity of pressure vessels used for storing liquefied gases shall comply with the following requirements: 1. For fixed pressure vessels containing liquefied gases, such as liquefied petroleum gas, the loading coefficient for the designed storage capacity is generally set at 0.9; for vessels whose volume has been determined through actual measurement, this value may be higher than 0.9, but it must not exceed 0.95. In TSG21-2016 \"Regulations on Safety Technical Inspection of Fixed Pressure Vessels\", 3.1.13 Loading coefficient: Pressure vessels used for storing liquefied gases shall have a specified design storage capacity, and the loading coefficient shall not be greater than 0.95. In the \"Technical Specifications for Safe Production of Liquid Ammonia Storage and Loading/Unloading in Shandong Province (Trial)\", Article 29 states that the storage coefficient for liquid ammonia storage tanks should not exceed 0.9, and the number of such tanks should be no less than 2. It can be seen that various standards and regulations have different requirements regarding the storage volume of liquid ammonia, which has led to differing opinions among enterprises on how to comply with these rules. In my opinion, the liquid ammonia storage tanks specified in AQ/T3017—2008 \"Guidelines for the Implementation of Safety Standardization in Ammonia Synthesis Enterprises\" are of the fully refrigerated type, whereas those in other standards are of the fully pressurized type. I ask fellow sailors to share their insights.
Our company charges 0.9...
Based on your company’s situation, it seems the standard to apply is 0.85 for you
The \"Regulations on Safety Inspection of Pressure Vessels\" mentioned by the original poster is an obsolete standard, while TSG21-2016 \"Regulations on Safety Inspection of Fixed Pressure Vessels\" is the current standard. Based on various standards and specifications, I personally believe that the filling factor should be set at 0.9.
The density of liquid ammonia varies significantly with temperature; therefore, it is best not to let it exceed 0.85 in summer and 0.9 in winter. Safety must always come first.
Thank you to the original poster for the very detailed information; we mostly calculate based on the maximum design capacity.
First, determine whether it is a classified device; if it is such a device, the regulations in the \"Solid Solution Rules\" shall be applied. If it is stored in liquid gas form, the same \"Solid Solution Rules\" apply, with a maximum filling coefficient of 0.95.