The purpose of the utility model is to provide a PT testing equipment for the inner wall of a direct pipe with uniform and high precision for small diameter and long straight tube, including a connecting rod, a nozzle and a photographic equipment at one end of the connecting rod, a support frame on the connecting rod, a channel in the connecting rod, a connecting rod connected with the channel, and a connection between the nozzle and the channel. The phase device wire is connected to the display through the channel, the other end of the channel is connected with the electric siphon pump, the support platform is set under the connecting rod, the line driving device is set up on the support platform, the end support device is set on the other end of the connecting rod, and the end support device is installed on the linear drive device. The utility model sets a linear drive device to replace an artificial drive connecting rod, and uses an electric siphon pump and a reversing valve to automatically absorb the permeable agent and the imaging agent. A photographic device, such as an endoscope, is used to detect the defects of the inner wall of the inner wall of a steel tube with 1 sizes and 12 meters long, so as to save manpower and have high sensitivity. The utility model has the advantages of uniform spraying, high accuracy and sensitive adjustment.
【技术实现步骤摘要】
堆焊直管内壁PT检测设备
本技术涉及管道检测领域,具体涉及一种内表面堆焊直管内壁PT检测(渗透检测)设备。
技术介绍
管道行业特别堆焊管件快速发展,全国各地的输油、输气管道铺设市场需求日益增大。在海洋工程、油页岩气开采、以及在使用酸性氯化物催化剂的场合,对管件的耐腐蚀、耐磨性、拉伸性能、抗高温起皮能能力要求甚高,需要确保堆焊关键有良好的性能。PT检测,即渗透检测,是一种无损特测方法。一般需要在管道内壁喷涂渗透剂、停留一段时间后,清理多余的渗透剂,喷涂显像剂,观测并判定缺陷。目前,针对2-3米的复合钢管内堆焊层的PT检测方法是在复合钢管管端放置一台大功率风扇,借助风扇的风力把渗透剂和显像剂吹进钢管内表面耐蚀层上,然后利用内窥镜观察钢管耐蚀层表面是否有气孔、裂纹等缺陷,但此种检测方法只适用于2-3米比较短的直管。针对小口径、比较长的直管检测常用手段是切割成小段检测然后再焊接,非常麻烦,且由于结构原因只能对堆焊直管管段内壁局部位置进行检测,喷涂的渗透剂和显像剂厚薄不均,容易出现缺陷漏检的情况,将导致堆焊复合钢管投入使用后缺陷处腐蚀加快,据统计存在缺陷的堆焊复合钢管在使用 ...
【技术保护点】
堆焊直管内壁PT检测设备,包括连接杆,设置在连接杆一端的喷头及照相设备,设置在连接杆上的支撑架,连接杆内设置通道,喷头与通道相连通,照相设备导线通过通道与显示器相连,其特征在于:所述通道另一端连接电动虹吸泵;所述连接杆下方设置支撑平台,所述支撑平台上设置直线驱动装置,所述连接杆另一端设置端头支撑装置,所述端头支撑装置安装在直线驱动装置上。
【技术特征摘要】
1.堆焊直管内壁PT检测设备,包括连接杆,设置在连接杆一端的喷头及照相设备,设置在连接杆上的支撑架,连接杆内设置通道,喷头与通道相连通,照相设备导线通过通道与显示器相连,其特征在于:所述通道另一端连接电动虹吸泵;所述连接杆下方设置支撑平台,所述支撑平台上设置直线驱动装置,所述连接杆另一端设置端头支撑装置,所述端头支撑装置安装在直线驱动装置上。2.根据权利要求1所述堆焊直管内壁PT检测设备,其特征在于:所述直线驱动装置为齿轮齿条传动,所述齿轮...
【专利技术属性】
技术研发人员:何清,张付峰,袁希海,白杨,王英豪,张海田,靳喜才,李建宾,张书贤,
申请(专利权)人:郑州万达重工股份有限公司,
类型:新型
国别省市:河南,41
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。