| 法兰安装不合格，发生泄漏是什么原因？ |
| 添加时间：2019/2/23 15:21:17 浏览次数： |
| 法兰是管道进行连接的重要零件，如果出现问题会影响整个设备的使用，设置影响工作进度，如果在平时发现有泄漏的情况一定要及时的查找原因，并进行维修，一般来说法兰发生泄漏很常见的是因为偏口、错口、张口、错孔等原因造成的。 Flange is an important part of pipeline connection. If problems occur, it will affect the use of the whole equipment and the working schedule. If leakage is found in peacetime, we must find out the cause in time and carry out maintenance. Generally speaking, flange leakage is very common because of offset, mistake, opening, mistake and so on. 一、偏口 First, partial mouth 我们说的偏口指的是管道和法兰的面不平行。就是与法兰不同心，也不垂直。其实这种情况还是比较好发觉的，这是因为内部介质压力超过了垫片可以承受的范围，主要是在检修还有安装施工的时候造成的，为了避免这种情况的发生，要在每次工程结束之后要认真检查。 We mean that the pipes and flanges are not parallel. It is not concentric or vertical to the flange. In fact, this situation is relatively easy to find, because the internal medium pressure exceeds the gasket can bear the scope, mainly in the maintenance and installation of construction caused by, in order to avoid this situation, after the end of each project to be carefully checked. 二、错口 Two, wrong mouth 这种情况不同于偏口，这个的时候管道跟法兰是垂直的，但是两个法兰是不同心的。法兰不同心就会导致旁边的螺栓不可以自由的进入螺栓孔。 This is different from the offset. At this time, the pipe is vertical to the flange, but the two flanges are different. If the flange is not centrifugal, the bolt on the side can not enter the bolt hole freely. 三、张口 Three, open mouth 张口顾名思义，法兰之间有空隙，间隔大，如果由于这种情况严重造成外载荷时，法兰垫片就会没有压紧力，会受到冲击，最终会导致垫片没有密封的效果。 As the name implies, there is a gap between flanges, and the gap is large. If the external load is seriously caused by this situation, the flange gasket will have no compressive force and will be impacted, which will eventually lead to the gasket without sealing effect. 四、错孔 Four. Wrong hole 管道和法兰同心，不过两个法兰对应的螺栓孔偏差的大这种情况就叫做错孔。错孔的情况会产生一种应力，这种力对螺栓会造成不好的影响，严重的会切断螺栓，直接影响密封。 Pipes and flanges are concentric, but the large deviation of bolt holes corresponding to the two flanges is called staggered holes. A kind of stress will be produced in the case of wrong hole, which will have a bad effect on the bolt, and severely will cut off the bolt, directly affecting the sealing. 不管出于什么原因，如果法兰出现泄漏的情况，都要根据泄漏的具体情况，和设备使用的实际情况，进行及时维修。除了上面我们提到的四种原因，腐蚀影响、腐蚀影响、热胀冷缩等都会造成法兰泄漏，平时的时候一定要多注意，要定时、定期检查设备。 Whatever the reason, if flange leakage occurs, timely maintenance should be carried out according to zhongyaodou.71ix.comkakou.37ix.com.cnzhongyaocai.71ix.combaohuqi.07858.netzaoxingzd.37ix.com.cn langfang.71ix.cnthe specific situation of leakage and the actual situation of equipment use. In addition to the four reasons mentioned above, corrosion, corrosion, thermal expansion and contraction will cause flange leakage. In peacetime, we must pay more attention to regularly and regularly check the equipment. |
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