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Pressure Vessel Closed Equipment

Wuxi Lima Chemical Machinery Co.,Ltd | Updated: Jul 11, 2017

Pressure Vessel Closed equipment

Pressure vessels are generally used in industrial production to complete the reaction, heat transfer, mass transfer, separation, storage and other processes, and bear the pressure of 0.1MPa gauge pressure above the closed container.

"Special Equipment Safety Supervision Ordinance" clearly states that the pressure vessel is defined as:

A pressure vessel is a closed device containing a gas or a liquid and carrying a certain pressure, which is defined as a maximum working pressure greater than or equal to 0.1 MPa (gauge pressure) and a product of pressure and volume greater than or equal to 2.5 MPa · L Gas, liquefied gas and a liquid having a maximum operating temperature above or equal to the standard boiling point; and a product having a nominal working pressure greater than or equal to 0.2 MPa (gauge pressure) and a product of pressure and volume greater than or equal to 1 .0MPa · L gas, liquefied gas and standard boiling point is equal to or below 60 ℃ liquid cylinders; oxygen chamber and so on.

Pressure vessel application:

The pressure vessel was mainly used in the chemical industry early, and the pressure was more than 10 MPa. Synthetic ammonia and high pressure polyethylene and other high-pressure production process, the pressure vessel required to withstand the pressure increased to 100 MPa or more.

With the development of chemical and petrochemical industries, the working temperature range of pressure vessels is becoming wider and wider; the emergence of new working media also requires pressure vessels to be resistant to medium corrosion; many process plants are growing in size and the capacity of pressure vessels With the ever-increasing. Since the 1960s, the development of nuclear power plants has put forward higher safety and technical requirements for reactor pressure vessels, which has further contributed to the development of pressure vessels. Such as: the development of coal conversion industry, the need for a single weight of several thousand tons of high temperature pressure vessel; fast neutron proliferation reactor applications, the need to address the high temperature resistance to liquid sodium corrosion pressure vessel; marine engineering development, Several hundred to several thousand meters working outside the pressure vessel.

Metal pressure vessels are widely used in chemical, petroleum, machinery, metallurgy, nuclear energy, aviation, aerospace and other departments, is the production process essential to the core equipment. Metallurgy, machining, welding and non-destructive testing and other technologies continue to progress, especially in computer technology as the representative of the rapid development of information technology, led the development of related industries in the world has invested a lot of manpower and material resources for in-depth study of the foundation On the metal pressure vessel technology has also made the corresponding progress.

Metal pressure vessel manufacturing industry as a sub-industry of oil and petrochemical equipment, driven by the growth of crude oil prices showed a steady growth trend. "2013-2017 China Metal Pressure Vessel Industry Market Outlook and Investment Opportunity Analysis Report" shows that in 2010 the scale of metal pressure vessel production enterprises a total of 588, total assets of 41.391 billion yuan; sales income of 48.819 billion yuan, an increase of 21.47% ; Total profit of 2.483 billion yuan, an increase of 37.24%.

With the increasing competition in the metal pressure vessel industry, the integration of large-scale metal pressure vessel mergers and acquisitions and capital operation are becoming more and more frequent. The domestic excellent metal pressure vessel manufacturers pay more and more attention to the research on the industry market, especially for the enterprise development environment and An in - depth study of changes in customer demand trends. Because of this, a large number of domestic excellent metal pressure vessel brand rapid rise, and gradually become the metal pressure vessel industry leader!

From 2003 to 2007, the output value of China's metal pressure vessel industry maintained a rapid growth trend, with an average annual compound growth rate (CAGR) of 26.4%. The total output value of metal pressure vessel enterprises in 2008 was estimated at 26.4 billion yuan, up 13.90% year on year. 2010 metal pressure vessel industry output value reached about 35 billion yuan of industrial scale. The size of about 38.5 billion in 2011. December 2011, China's production of industrial boilers 3.5 million tons of evaporation, an increase of 32.74%. Data show: from January to December 2011, the national industrial boiler production reached 413,000 tons of steam, an increase of 28.86%.


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