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The Characteristics Of The Pressure Vessel
Aug 10, 2017

Pressure vessels are widely used in industrial, petrochemical, pharmaceutical, metallurgical, mechanical, mining, power, aerospace, transportation and other industrial production sectors, and are also common in agriculture, civil and military sectors, especially in the petrochemical industry The most common, the petrochemical enterprises in the tower, kettle, tank, tank are all reservoirs or equipment as the shell, Pressure Vessel and Pressure Pipe Component and the vast majority of the pressure temperature is running, such as an annual output of 300,000 tons of ethylene plant, about 793 sets of equipment, including pressure vessels 281 units, Pressure Vessel and Pressure Pipe Component accounting for 35.4%. Steam boilers are also pressure vessels, but it is a special pressure vessel with direct flame heating. As for liquefied petroleum gas cylinders for civil or factory use, it is everywhere.

The operating conditions of the pressure vessel are very complex and even harsh. Pressure from 1 ~ 2 × 10-5Pa vacuum to high pressure, high pressure, such as oil hydrogenation of 10.5 ~ 21.0 MPa; high pressure polyethylene 100 ~ 200 MPa; synthetic ammonia 10 ~ 100 MPa; artificial crystal up to 140 MPa; From -196 º C low temperature to more than 1000 degrees Celsius high temperature; and processing media, including burst, burning, poison, radiation (light), rot (corrosion), grinding (loss) and other thousands of varieties. The complexity of the operating conditions so that the pressure vessel from the design, manufacture, installation to use, Pressure Vessel and Pressure Pipe Component maintenance is different from the general machinery and equipment, and become a special kind of equipment.

The pressure vessel is subject to various static, dynamic or alternating loads, as well as additional mechanical or temperature loads; secondly, most containers contain compressed or saturated liquids, and if the container is broken, the media suddenly depresses and expands instantaneously Out of the destruction of energy, coupled with a large number of pressure vessels made of welding, Pressure Vessel and Pressure Pipe Component easy to produce a variety of welding defects, once the test, the operation error prone to explosion rupture, the device explosive, flammable, toxic media will leak , Is bound to cause very disastrous consequences. Therefore, the pressure vessel requires a high safety and reliability.

We all know that the pressure vessel needs a good seal, Pressure Vessel and Pressure Pipe Component so there are many aspects of the need to pay attention to the safety issues, today we briefly introduce the pressure vessel in the technical aspects of some of the features and major attention to the problem.

1, product and technology update fast pressure vessel is mainly used in chemical, pharmaceutical, environmental protection and other fields. The specific product and technical requirements of the pressure vessel are closely related to these downstream industries. In recent years, Pressure Vessel and Pressure Pipe Component with the downstream industry, especially the rapid development of emerging areas, leading to the replacement of pressure vessels to speed up the new materials, new technologies are constantly applied to pressure vessels, pressure vessel manufacturing enterprises design capabilities, processing technology and testing Ability to put forward a very high demand.

2, the design of a large number of large pressure vessel variety, diverse structure, complex conditions, the product design put forward a very high demand. Pressure vessel product design, not only need to achieve product features, improve product performance, energy saving, but also to ensure the safety of the use of the product. The safety of the product should be evaluated in the design of the pressure vessel. Pressure Vessel and Pressure Pipe Component If the product is designed improperly, it may cause serious consequences.

3, the manufacturing process is complex, product quality requirements for high-pressure containers for non-standard products, according to the specific requirements of customers design and manufacturing. As a non-standard product, the pressure vessel manufacturing mechanization is not high, more manual operation, the production process is longer, and usually the product bulky, complex geometric shapes, parts more, these are pressure vessel manufacturing process made a very high Claim. The pressure vessel not only has a complicated manufacturing process, but must also meet very high safety standards. The quality of the pressure vessel is related to the safety of the life and property of the personnel. Therefore, the design, manufacture, inspection and testing of the pressure vessel product must strictly meet the requirements of the relevant national laws, regulations and standards to ensure the quality and safe operation of the product.