Domestic ultrasonic phase array pipeline nondestructive detecting technique researching condition

Compare Pipeline girth welding  ultrasonic phase controlled array detecting device to normal ray detecting device,no radioactive    contamination  、detecting data can be aided by computer to help detecting staffs to analyze 、mark,save a lot of time 、 decrease    labour intensity ;compare to traditional manual ultrasonic flaw detection ,detecting speed is fast ,flaw positioning is accurate,detecting sensitivity is high、detecting result is direct,can real time display,and reduce labour intensity,improve detecting efficiency and detecting  accuracy ,compare to multiple probe ultrasonic detecting system ,the device is light weight,simple to adjust probe,strong practicality for different pipe diameter,represent developing direction of pipeline circumferential weld  nondestructive flaw detection。

Ultrasonic phase controlled array detecting technique is need to be deeper researched and developed on system intelligent identification、 flaw  qualitative  and quantify analysis and so on areas。

In the end of 1990s,the Canada company R/D Tech was firstly applied phase controlled array detecting technique to pipeline flaw detection area,using electronic technique to realize  acoustic beam scanning direction and control on depth of focus,realize that detecting pipeline welding line with different wall thickness different diameter and different material by the same probe，overcome hard adjustment 、narrow range for probe suitability and heavy device in normal multiple probes automatic ultrasonic detecting system 。

With development of pipeline construction and improvement of construction device automation,full automatic welding device is becoming a tendency,promote development of full automatic ultrasonic phase controlled array detecting system,to fill in gaps of Chinese full automatic phase controlled array detecting system area,developing high technique with proprietary intellectual property rights, By the China petroleum and natural gas pipeline scientific research institute ,Shanghai electric automation research institute,Shanghai magnolia NDT company and other units organized scientific research strength for technical research ,and achieve technical achievement with achieved proprietary intellectual property rights on phase controlled array detecting technology research 。Ultrasonic launch /receive system research、 detecting controlling software ,  ,developed system has been tested by indoor process test and expressed that hardware system and hardware controlling procedure are completely satisfied with requirements，current stage, this project has entered field  test ,there are many units is doing ultrasonic phase controlled array technique research on theory and laboratory stage  in our country。Homemade large diameter pipeline circumferential weld phase controlled array ultrasonic detecting device,the device is close to foreign similar products on percent of detecting flaw,defect circumference orientation 、welding joint cross section ,for further develop industrial application products、overcome shortcomings of samples on some detecting properties,and then research and develop the next generation product,device develop and indoor test have been completed,field test at western pipeline 813mm,the project has achieved two national patents of phase controlled array detecting system and phase controlled array detecting technology device，Namely phase controlled array ultrasonic instrument and testing method  1.  Developed mathematic mode of ultrasonic phase controlled array detection with independent intellectual property。

Develop system control software with higher openness and suitability、equipped with independent intellectual property,including technology controlling procedure、and data high speed gather and transfer software。

Develop hardware control system that satisfy project needs,including phase controlled array ultrasonic launching receiving system,high speed data gathering and pipeline circumferential weld crawling scanning system。