Unloading crane pipe

The last edit to this post was made by bfdlwolf on 2019-4-17 at 11:17. 1. \"Guiding Opinions of the Office of the State Council Safety Committee on Further Strengthening Work Related to the Safe Production of Hazardous Chemicals\" (Safety Committee Office [2008] No. 26) \"16. Actively promote progress in scientific and technological development in the field of safe production.\" Encourage and support research institutions, universities, and relevant enterprises to develop technologies for safe chemical production, as well as technologies for the safe storage, transportation, and use of hazardous chemicals. In the process of filling hazardous chemicals in tank trucks, the use of universal filling pipeline systems is encouraged as a replacement for filling hoses; the use of hoses for filling liquefied hazardous chemicals such as liquid chlorine, liquid ammonia, liquefied petroleum gas, and liquefied natural gas is prohibited. Guide central state-owned enterprises in conducting risk assessments to improve the level of accident risk management ； Organize qualified central state-owned enterprises to apply Hazard and Operability Study (HAZOP) techniques in order to improve their ability to identify potential risks in chemical production facilities. ” 2. “Opinions on the Implementation by Hazardous Chemicals Enterprises of the ‘Notice of the State Council on Further Strengthening Enterprise Work Safety’ (Safety Supervision General Administration Document No. 3 [2010] 186): Attach great importance to safety management in the storage and transportation stages.” Formulate and continuously improve safety management systems for the receipt, storage, loading, unloading, and transportation of hazardous chemicals, and enforce strict controls over the management of such products during storage. Based on the characteristics of hazardous chemicals, appropriate level measurement instruments should be selected to enable dynamic monitoring of the liquid level in storage tanks. Establish an efficient emergency response and rapid fire suppression system for the tank farm ； Strengthen the safety management of hazardous chemical pipelines. For those pipelines that pass through public areas, it is necessary to improve signage, clarify management responsibilities, and establish and implement a regular inspection system. Effective measures must be taken to inform all units and residents along the route about the hazards associated with hazardous chemical pipelines. Strictly prevent the occupation of hazardous chemical transmission pipelines. All special vehicles used for transporting hazardous chemicals by road must have satellite positioning devices with driving record functions installed and in use by the end of 2011. In the process of filling hazardous chemicals in tank trucks, the use of metal universal piping filling systems should be promoted as a replacement for filling hoses; the use of hoses for filling liquefied hazardous chemicals such as liquid chlorine, liquid ammonia, liquefied petroleum gas, and liquefied natural gas is prohibited. ”3. Paragraph 6 of 6.4.2 in the Petrochemical Fire Protection Code GB50160 states that for the loading and unloading of Class A B, Class B, and Class C A liquids, submersible loading/unloading nozzles should be used. Therefore, 1. liquefied hazardous chemicals such as liquid chlorine, liquid ammonia, liquefied petroleum gas, and liquefied natural gas; 2. liquids classified as Class A, B, and C should use loading and unloading nozzles.

If conditions permit, proceed; otherwise, classify it according to the criteria for major hazards: lol

The 2018 version of the petrochemical regulations has been revised: there is no more category Ca, and it now specifies loading only; unloading has been removed

\"Code for Fire Protection Design of Petrochemical Enterprises\" GB50160-2008 (2018 edition) 6.4.2 Automotive loading and unloading stations for flammable liquids shall comply with the following provisions: 1 The entrances and exits of the loading and unloading station should be located separately； When the entrance and exit are shared, a turnaround area should be provided within the station ； 2 The loading and unloading yard shall have a floor made of cast-in-place concrete ； 3 The distance between the loading/unloading crane positions and the buffer tanks should not be less than 5 m, and the distance between the elevated tanks should not be less than 0.6 m ； The fire separation distance between the loading/unloading cranes for Class A, Group 4 and Class A, Group B liquids and the centrally located pumps should not be less than 8 m ； The fire separation distance between the loading/unloading cranes for Class A B and Class B A liquids, as well as the centrally located pumps and oil and gas recovery equipment, should not be less than 4.5 m ； 5 When there are no buffer tanks inside the station, an emergency shut-off valve that is easy to operate should be installed on the loading and unloading pipelines at a distance of more than 10 m from the loading/unloading cranes ； 6 For the loading of Class A, B, and C liquids, submersible loading nozzles should be used ；

The officially published petrochemical regulations have been changed back to the original version, still regarding loading and unloading

It’s about loading; take a closer look and check the original version – there is only loading mentioned, no unloading. You can find this information on the official housing and construction website

This post was last edited by myglx1983 on 2019-7-29 09:59. I’m really confused now – the official housing and construction website states that only loading is required, but local authorities have issued regulations stating that both loading and unloading must be done using flexible hoses: L:L:L:L

There is a rather awkward issue: liquid oxygen is classified as a Category B medium according to SH/T 3059. It is not clear at present whether it is necessary to install a loading arm according to the requirements of GB50160. I look forward to your advice.

A corrigendum was later released, still on the loading page: http://www.jhpress.com/View/News/NewsView.aspx?id=26