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Why can't liquefied gas tanks be placed horizontally

Liquefied gas tanks have long been ordinary objects, and we were using them before natural gas was supplied. However, it needs to be extra careful when placed upright, especially not lying down. Why is this?

It is understood that when liquefied gas cylinders are placed horizontally, the cylinder body is extremely prone to rolling, and the cylinders, as well as the cylinders and other objects, are easily impacted, forming excitation energy and leading to explosion accidents. Under normal circumstances, gaseous liquefied gas is supplied for combustion through a pressure reducing valve. If placed horizontally or upside down, the liquid passing through the pressure reducing valve is liquid. After the liquid comes out, its volume rapidly expands by nearly 250 times, greatly exceeding the load of the stove, resulting in two situations: first, it can emit a very high and large flame, igniting nearby combustibles; Another possibility is that the gas does not have enough time to completely burn and forms an explosive mixture with air, resulting in an explosion.

Liquefied gas cylinders are filled with fillers and solvents (acetone). When used horizontally, acetone is prone to flow out with the liquefied gas, which not only increases the consumption of acetone, but also reduces the combustion temperature and affects use. At the same time, it can cause backfire and lead to explosion accidents. In addition, acetone leakage during lying down resulted in an increase in liquefied gas pressure and an explosion.

When in use, the valve of the steel cylinder is equipped with a pressure reducer, a flame arrester, and a rubber hose. Due to the easy rolling when lying down, the pressure reducer, flame arrester, or the rubber hose can be easily damaged during rolling, causing liquefied gas to leak out and leading to combustion and explosion. Liquefied gas cylinders are equipped with shock-absorbing rubber rings to prevent collisions during loading, unloading, transportation, and use. Rubber rings are insulation materials. When placed horizontally, it is equivalent to placing a steel cylinder on an electrical insulator, causing the static electricity generated on the cylinder to not diffuse to the ground and accumulate on the cylinder body, which is prone to generating static sparks. When liquefied gas leaks, it is highly likely to cause combustion and explosion accidents.