Non Intrusive Pig Signaller

Description

Description
This Non Intrusive Pig Signaller is used to determine whether the pig passes or not during pigging of oil, gas, water and other transmission pipelines. It is flexible and convenient to install and disassemble, and can meet the requirements of various pipes for indicators. It only needs to fix the indicator around the outer wall of the pipeline. Therefore, it solves the problem that the mechanical passing indicator is easy to ignite, easy to produce mechanical failure and is not explosion-proof. Moreover, it affects the accuracy of passing ball judgment and the problems of false alarm and missed alarm caused by electronic interference. In a word, if you have any other questions, please contact our professionals to answer them for you.

Product composition
The Non Intrusive Pig Signaller includes many parts. The explosion-proof remote transmission display mechanism tzsl has heating function, passing time, 100 times of storage and memory, remote transmission and explosion-proof mark Exd Ⅱ CT6. There are also protection IP65 and sensing mechanism yy-fct, removable card mounting mechanism, connecting wire and extension rod. If necessary, it is generally composed of buried pipelines.
The sensing mechanism of the magnetic explosion-proof pass indicator includes a magnetoresistive circuit, a balanced amplification circuit, a low-pass filter circuit, a trigger circuit, a CPU, etc. There are also supporting remote switch circuit, display circuit and reset circuit.

Use characteristics
During the operation of the product, when the pig with magnetic force passes through, the passing time of the pig will be displayed and a switch signal will be transmitted remotely to understand the operation of the pig in the pigging process. The display mechanism simultaneously stores and remembers the number of passes and the time, and the number of memories: 99 times.

Scope of application
1. Applicable temperature: – 40 ~ 85 ℃.
2. Suitable for conveying pipes of all materials.
3. The pig shall be equipped with magnetic force source (permanent magnet 3000-4500 Gauss)
4. Applicable gas and medium places
5. Explosion proof sign: Exd Ⅱ CT6
6. Protection: IP65.
7. Power supply: 4 No. 7 batteries or 24V DC power supply is selected through jumper cap.
8. Remote signal is normally open and normally closed.
9. Contact capacity: not more than 3a.
10. Action time of remote signal: 3S.

About pipeline cleaning
This product needs to be used with pig. Physical cleaning is a method of professional cleaning. It is a physical method to remove dirt from the material surface. Physical cleaning methods have one thing in common. That is, high efficiency, no corrosion, safety and environmental protection. Therefore, the research on physical cleaning has been paid more and more attention. Physical cleaning methods: high pressure water jet cleaning, water gas cleaning (air stirring), electric pulse cleaning, ultrasonic cleaning, pig cleaning, mechanical scraping, etc. For pipelines, especially long-distance pipelines, pig cleaning is more economical and reasonable.

The pig has the following characteristics.
(1) The shrinkage is strong, the range of polyurethane material is 0.032 ~ – 0.128g/cm, and the shrinkage ratio can reach 35%. Therefore, pig has strong trafficability and can pass through various elbows, valves, pipe fittings, etc.
(2) High strength, mixing with different polymer elastic materials. And a coating outer layer of a heterogeneous polymer elastic material. So that the surface strength (tensile resistance and puncture resistance) is high. It can remove dirt without damage under high pressure and temperature. Some also have sharp protrusions such as steel brushes and nails on the surface. Which enables it to remove hard scale.
(3) The dimensions and specifications are complete. The diameter range of pig is D5 ~ d3000mm. It cooperates with the changes of different densities and different surface coverings. This can be applied to various specifications of pipe cleaning.
(4) There are many kinds of dedicated pig. Besides ordinary ones, there are many special ones. For example, it is used for new pipeline cleaning, special for squeezing, coke removal, isolation medium, etc.

Cleaning principle:
the diameter to be selected for pig cleaning is slightly larger than the diameter of the pipeline to be cleaned. The general interference is 10% ~ 15%. Driven by the pressure medium, pig runs in the pipeline. Due to the existence of interference, the pig is tightly pressed with the inner wall surface of the pipe. Under the action of friction, pig will remove the dirt attached to the inner wall of the pipe. At the same time, the pushing medium behind the pig reaches the front of the pig through the annular gap between the pig circumference and the partition wall. This forms a small flow and high velocity annular jet. It can not only wash away the dirt accumulated on the front end of the pig. Moreover, it also plays a role in cooling and lubricating the pig.