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1¡¢ Brief introduction of oil pipeline test pile
Oil pipeline test pile is a kind of auxiliary equipment specially used for cathodic protection of oil transportation pipeline, equipped with potential test probe to test the protection of oil transportation pipeline. It is mainly used for the detection of cathodic protection parameters. It is an indispensable device in pipeline management and maintenance, and is arranged along the line according to the test function. The test pile of oil pipeline can be used to test the potential, current and insulation performance of pipeline, as well as leak detection of covering layer and AC / DC interference test.
2¡¢ Structural composition of test pile for oil pipeline
The oil pipeline test pile is composed of internal and external galvanized pipe, detection line and detection joint. There are three kinds of testing joints of test pile, which can be produced according to the requirements of users. There are two types of test piles: 3m or 2m in height and 0.1M in diameter.
3¡¢ Advantages of oil pipeline test pile
After the latest improvement, the outer side of the test pile of the oil pipeline is sprayed with the automobile external coating paint. Therefore, it has better anti-corrosion, anti ultraviolet and anti-aging properties. The door shaft of the test pile is made of stainless steel. The test hole of the test pile is provided with rain proof eaves to prevent rainwater intrusion. The test pile detection door is equipped with a special key to prevent abnormal opening.
4¡¢ Application method of oil pipeline test pile
The most important application of test pile is the cathodic protection potential test, which is commonly used to test the cathodic protection potential of underground or underwater metal structures such as oil storage tanks, oil transportation pipelines, etc. When in use, one or more zero position cables shall be welded on the protected body as required and led to the terminal in the test post. At the same time, one or more reference electrode cables are also introduced into the terminals of the test post, which are independent and do not conduct each other; the test post can also be used for wiring, and the corresponding terminals are connected with special connecting pieces when used for wiring.
5¡¢ Notes on installation of test pile for oil pipeline
The test pile should be installed in the place where water erosion, landslide and debris flow are not easy to occur. The installation should ensure that the foundation is firm and avoid the pile inclination caused by settlement.
6¡¢ Installation instructions and types of test piles for oil pipelines
Metal test pile is an essential part of cathodic protection system. Its main function is to detect the parameters of cathodic protection. Test pile also plays an important role in pipeline management and maintenance. When installing the test pile, it must be arranged along the pipeline line according to its test function. The test pile is mainly composed of pile body, test wiring board, test wire and name plate.
As the oil pipeline test pile plays a very important role in the cathodic protection system, there are some technical requirements for the selection of the test pile: the specification of the pile is 108 steel pipe, the wall thickness is 4 mm, and the length is 2 m (the pile specification can be customized according to the requirements).
In order to prevent the external wall of the test pile from corrosion after a long time, the orange anti-corrosion coating is usually sprayed; the internal part of the pile corresponding to the test door is equipped with a stable wiring board, which is mainly used to facilitate the connection of test cables and pile insulation. The bottom of the standard test pile must have a structure that can make it stable. In the cathodic protection construction, because the pipeline coating defects often appear, so we usually use the test piece to make up.
The test pile is a very important part of the cathodic protection system, so the installation of the test device also needs some technical requirements. When installing the test pile, copper welding or manual arc welding should be used to connect the test pile and the pipeline. The surface of the protected pipe should be cleaned before and after welding. The test pile shall be placed on one side of the protected pipe.
When installing the test pile, the location of the test pile should be selected in strict accordance with the cathodic protection design, and the location of the test pile should be in the place where the foundation is relatively solid. The soil should be tamped and the ground should be reinforced as much as possible. At the last step of installation, each test post should be assigned a stake number to distinguish the records, so as to facilitate the detection and statistics of cathodic protection of the whole protected pipeline in the future.
Shandong Linyi Bosi conductive materials Co., Ltd. is a high-tech enterprise specializing in the production of MMO flexible anode, conductive polymer flexible anode and titanium coated anode, mainly providing cathodic protection technology, engineering design, installation and technical services.