The pressure vessel is designed with these strange shapes. Do you know why?

The pressure vessel is designed with these strange shapes. Do you know why?     

 A pressure vessel is a closed device that contains gas or liquid and carries a certain pressure. It is usually composed of a cylinder, a head, a flange, a sealing element, an opening, a connecting pipe, a support and other various internals. There are many classification methods for pressure vessels. According to the geometric shape, there are mainly four types of pressure vessels: cylindrical vessels, spherical vessels, rectangular vessels and combined vessels.            Shape classification is a visual method to divide the types of pressure vessels, so today, Dr. Material will tell you the difference and role of pressure vessels with different shapes according to the classification of shapes.            1. Cylindrical pressure vessel            The basic structure of cylindrical pressure vessel is cylinder head, nozzle, manhole and support. Its main advantage is that it is easy to manufacture and it is convenient to set process internals inside. Therefore, the production and usage are larger than spherical and square vessels.            Cylindrical vessels are used in petroleum, liquefaction and other aspects. Generally, small LPG tanks are made into such cylindrical vessels, while large LPG tanks are made of different geometric vessels.            2. Spherical container            Spherical container is also called spherical tank, and its shell is spherical. It is an effective and economical pressure vessel for storing and transporting various gases, liquids and liquefied gases.            Compared with cylindrical vessels, the main advantages are: uniform force; Under the same wall thickness condition, the bearing capacity of spherical tanks is high. Under the same volume condition, the surface area of spherical vessels is small. Due to the wall thickness, small surface area and other reasons, more steel is generally saved than that of cylindrical vessels. The main disadvantage is that the manufacturing and construction are relatively complex. It is widely used in chemical industry, petroleum, oil refining, shipbuilding and urban gas industry.            3. Rectangular container            Rectangular containers are also called square containers, which generally bear gas or liquid with low pressure. At present, the shape design of such containers is relatively less, because square containers are easy to deform and cause accidents, and the cost of designing rectangular containers is higher than that of circular containers, so rectangular containers are relatively rare.            However, the square container has one advantage, it has sufficient stability and firmness, and is suitable for storing or transporting very sensitive powder materials.            The above are several common shapes of pressure vessels. Pressure vessels are widely used and play an important role in industry, civil, military, etc. It is widely used in chemical industry and petrochemical industry, such as this air compressor. All kinds of special compressors and auxiliary machines of refrigeration compressors, such as coolers, buffers, oil-water separators, gas storage tanks, evaporators, and liquid aging agent storage tanks, are pressure vessels.