In our each day living, we've got all ever
seen all sorts of pipes employed for transporting several medium out of
industrial function or living aim. Some of them are Pressure
Piping. Pressure
Piping refers to tubular gear with nominal diameter not bigger than 25mm
that are used for transporting gas or liquid by taking use of specific
pressure. The application variety is regulated amongst gas, liquefied gas,
steam medium with highest working pressure not greater or equal to 0.1MPa or
combustible, explosive, toxic or erosive liquid medium whose functioning
temperature is greater or equal to common boiling point. That is to say, today
so referred to as ‘stress pipes' not only mean that interior or
external pipes sustain the pressure but medium transported interior is
‘gas, liquefied gas and steam' or ‘fire blast, toxic or
erosive liquid'.
Pipes transportation is one of five major
transportation industries paralleled by railway, highway, waterway and
aviation. As a type of special transportation equipment, pipes are widely
applied in industries like chemical industry, petrochemical, petroleum,
electric power, light industry and metallurgy. In cities and towns, it is
applied in fuel gas, heat and water supply as well as water drainage. With the
development of social economy, pipes function is more obvious and is viewed as
‘factory blood vessel'. At the same time, the problems caused by it
are also increasing. In order to prevent and reduce incidents and guarantee
lives and properties security, major industrial countries covering America,
Japan and Germany all list stress piping as the special gear containing many
unsafe factors. They legislate to practice security supervision on it.
Pressure
Pipes are one part of the pipelines. Pipeline is the stress fitting
assembly composed of pipes such as Composite Pipes, pipe
fittings some may be black pipe fittings, flange, bolt, gasket, valve and other
components or pressure parts and supporting parts. A pipeline system, in order
to fulfill functions like liquid transportation, allocation, blending,
separation, discharge, measure and fluid flowing control, must connect with
corresponding dynamic equipment, reaction equipment, storage gear, separation
equipment, heat exchange equipment and control gear so as to develop into a
system, ensuring liquid in pipes are of certain pressure, temperature and flow.
As a result, it finishes designed and scheduled tasks.
Stress pipes system refers to the system
composed of pipe component, pipe supporter, security protection equipment and
auxiliary devices. Here rubber end caps and Pipe End
Caps all belong to pipe element. Frequently observed Pressure
Pipes mainly include pipes, pipe fittings, flange, valve, compensator,
flame arrester, sealing element, supports and hangers. Security protection
device refers to over-temperature and ultra-pressure controlling device and
warning device such as security valve, stress gage, rupture disc and emergency
cutting valve. The auxiliary device mainly means pipeline oriented device,
support post, cathodic protector of stress pipes. They may be cathodic
protecting device, compressor station, pump station, valve station, stress
adjusting station and supervision system.
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