Service Introduction
The pulse eddy current scanning technology for Tianjin Yinke heat exchanger tube bundles is based on our company's independently developed pulse eddy current precise scanning technology. It is equipped with specific tube bundle detection sensors and dedicated spectrum analysis software. The detection adopts the method of tube bundle penetration, and the heat exchanger tube bundle is fully inspected. The corrosion characteristic distribution of each part of the tube bundle can be directly displayed through the processing of computer software algorithms, and the defect information of the tube bundle can be obtained. Record and disclose the problematic area through on-site photography or endoscopic imaging. The pulse eddy current scanning technology for heat exchanger tube bundles can detect internal and external corrosion and thinning defects of heat exchanger tubes. Based on the remaining wall thickness, corrosion degree, and corrosion rate of the tube bundle, the usage of the tube bundle can be judged, and further guidance suggestions can be provided for heat exchanger maintenance, replacement, and tube blockage. The advantages of detection technology: high detection efficiency, no need for sample tubes, and the tube bundle can be detected by simply flushing.
Technical Parameter
Tube bundle material: ordinary carbon steel, stainless steel, duplex steel, etc Wall thickness range: 0-10mm Suitable pipe diameter: DN12mm-DN30mm Detection speed: 40 seconds/piece for ferromagnetic materials, 20 seconds/piece for non ferromagnetic materials Detectable defect types: uniform thinning, local thinning, pitting defects, perforations, scratches, cracks, deformation defects
Technical advantages
Strong detection capability The detection blind zone is small, and defects inside, outside, and near the baffle plate of the tube bundle can be detected. Strong on-site adaptability A small amount of rust, scale, and accumulated water does not affect normal testing. The test results are intuitive Using a signal characteristic curve graph to visually reflect the detection results.
Technical Comparison

Compare far-field eddy currents The pulse eddy current signal has strong quality, 100-500 times that of far-field eddy current. Before formal testing, there is no need to make defective sample tubes for direct testing. Comparative rotational ultrasound Before formal inspection, pulse eddy current does not require the addition of medium inside the tube and can detect crack defects that are insensitive to rotating ultrasound.

Service scope

Our company's current heat exchanger bundle pulse vortex technology has been applied in the petrochemical and fluorine chemical industries. The types of cold exchange equipment that can be tested include conventional tubular heat exchangers, U-tube heat exchangers, fixed tube plate heat exchangers, waste heat boilers, air cooling, etc. We have accumulated a wealth of experience and management cases for on-site emergency testing of daily leakage cold exchange equipment, special testing for shutdown and defect elimination, and large-scale scanning and testing of cold exchange equipment during major maintenance periods in petrochemical enterprises.

Case Presentation