drawings for the universal pipeline filling system (fluid loading/unloading arm)

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This post was last edited by goldliyang on 2017-5-31 at 14:16. Article 16 of Document No. Anwei Ban [2008] 26, issued on September 14, 2008, by the Office of the State Council’s Work Safety Supervision and Administration Commission under the title [Guiding Opinions on Further Strengthening Work Safety in the Handling of Hazardous Chemicals], states: “In the process of filling hazardous chemicals in tank trucks, it is necessary to promote the use of universal filling pipeline systems instead of filling hoses; the use of hoses for filling liquid chlorine, liquid ammonia, liquefied petroleum gas, liquefied natural gas, and other liquefied hazardous chemicals is prohibited.” ”Article 14 states that newly constructed chemical plants involving hazardous processes must be equipped with automated control systems. Since the issuance of Document No. 26 [2008] by the State Council’s Work Safety Committee Office, the Wanxiang filling pipeline system has attracted significant attention from work safety and environmental protection authorities at the provincial, municipal, autonomous region, and county levels across the country, as well as from the management departments responsible for work safety and environmental protection in various enterprises and institutions, as well as from enterprises involved in the loading and unloading of liquids such as fertilizers and chemicals. Since September 15, 2008, safety supervision departments at the provincial, municipal, and county levels across the country have successively issued documents and implementation rules in response to Document No. [2008] 26 issued by the Safety Committee Office, which provides guidance on further strengthening work related to the safe production of hazardous chemicals. The importance of universal filling pipeline systems has been emphasized on multiple occasions, and safety supervision departments have also stepped up inspections to ensure compliance. Many enterprises have revised their hose filling processes to use universal filling pipeline systems and fluid quantitative loading control systems. The universal filling pipeline system is highly valued because of its flexibility in rotation, excellent sealing performance, and high technical complexity. In the process of filling tankers with liquid hazardous chemicals such as liquid chlorine, liquid caustic soda, liquid ammonia, dimethyl ether, liquefied petroleum gas, and liquefied natural gas, it enables the safe, environmentally friendly, and efficient transfer of these fluids. Moreover, it prevents accidents caused by hose ruptures – which often occur during the filling of liquid hazardous chemicals – resulting in casualties, economic losses, and issues related to safety and the environment. The universal filling pipeline system is a pipeline system composed of multiple rotary joints, several sections of pipes with either the same or different diameters and varying lengths, pipe fittings, ball valves, flanges, quick-connect fittings, loose-flange connections, anti-static devices, spring-cylinder balancing devices, etc. (see figure on the right); it enables a set of pipes to perform specified movements in three-dimensional space. Used for loading and unloading fluids in road tankers, rail tank cars, tank ships, etc. The universal filling pipeline system is suitable for the following media: liquid ammonia, liquid caustic soda, liquid chlorine, liquefied petroleum gas, liquefied natural gas, dimethyl ether, alcohols, acids, alkanes, oils, and other liquid and gaseous media. Optional accessories for the universal filling pipeline system include ball valves, quick-connect fittings, loose-flange connections, emergency shut-off valves (domestic or imported), and quantitative loading control systems, etc. The universal filling pipeline system allows for the selection of materials based on the medium being handled. Common materials include carbon steel, stainless steel, and carbon steel lined with PTFE. The nominal diameter range for liquid pipelines is DN50–DN200, while that for gas pipelines is DN25–DN100. The design temperature range is from -196°C to +300°C, and the design pressure ranges from 1.0 to 10 MPa. The universal filling pipeline system is also known as liquid ammonia loading/unloading arm, liquid caustic loading/unloading arm, liquid chlorine loading/unloading arm, dimethyl ether loading/unloading arm, liquefied gas loading/unloading arm, fluid loading/unloading arm, liquid loading/unloading arm, and dip pipe, among other names.