Measuring the oil transmission pipeline pressure method and comparison

The lowest cost way to transport oil through the pipeline transmission is compared to other methods, which is a large investment and low maintenance. Relatively speaking, because a wide range (hundreds of thousands of kilometers), passing through the complex environment, monitoring and maintenance is difficult. In particular controls, if they can find the first time crude oil leaks and other conditions, will be able to reduce loss and pollution to the lowest level degree.

1, the acoustic transmission test method.

Principle: A normal functioning of oil pipeline, oil hydraulic pressure, the temperature in a normal range, if there is a specific sound in which transmission will be a range of values​​. If leakage occurs, oil pressure, temperature, will change, resulting in changes in the speed of acoustic transmission. In this way the fixed launch point and the receiving point, each measured sound propagation speed transmission segment, and a system of judgment to identify abnormal segments.

2, sound monitoring method

Principle: If leakage occurs, percussion, fracture, etc., will have an abnormal noise, and in the pipeline spread. With the normal transmission of the sound spectrum for comparison to determine the fault point. Its difficulty is susceptible to the surrounding interference fit and used simultaneously with other methods.

3, pipe internal pressure test method

Principle: In the oil pipeline, and so fixed each 5Km or 10km distance, install a pressure test module, typically low frequency AC charge pressure sensor module, then the values ​​are concentrated on acquisition. If leakage occurs a certain point, that a leak point pressure value changes may occur, but also different from the other points, and according to the specific calculation, the fault point can lock 10 meters, or even higher accuracy range. The device, called oil charge amplifier module is a piezoelectric charge amplifier, 5 ~ 20mA transmission module.



Tech & Service of Seamless pipe

Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.

How to make seamless pipe(seamless pipe process)?
Hot Piercing Workshop
Piercing process
The cross roll piercing and pilger rolling process in the size range from approx. 250 to 660 mm outside diameter.
Precision cold drawn steel tube production process
Pipe weld cracks
often follow different mechanisms can be divided into two types of thermal cracking and cold cracking.
How to calculate a steel pipe and tube theoretic weight
Calculate a steel pipe?
Pipe fittings are necessary to join together pipes, or to change the direction of an existing pipe.
Pipe beveling
Pipe beveling is the process where an angle is formed between the edge of the end of a pipe or tube and a plane perpendicular to the surface.
Steel pipe cutting machine
Pipe cutting
Cutting tools have a grinding wheel piece cutting machine (also known as toothless saw), hand saw, cutter and other hand tools.
Packing the steel pipes
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method.


SUNNY STEEL

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

Link exchange

Copyright © 2011 Sunny Steel Enterprise Ltd.  All Rights Reserved ICP No.:08010763