檢測翅片管質量是否合格的兩種最好方法

翅片管質量的好壞應該怎麼進行檢驗？翅片管通俗的講就是一種換熱管，主要功能是提高換熱效率，通常在換熱管的表面通過加翅片，增大換熱管的外表面積（或內表面積），從而達到提高換熱效率的目的，翅片管的檢測方法是我們並不瞭解的，對此翅片管網專傢表示說主要有兩種方法，詳細介紹如下：How should the quality of finned tube be inspected? Generally speaking, finned tube is a kind of heat exchange tube. Its main function is to improve the heat transfer efficiency. Usually, by adding fins on the surface of the heat exchange tube, the outer surface area (or inner surface area) of the heat exchange tube is increased, so as to achieve the purpose of improving the heat transfer efficiency. The detection method of finned tube is unknown to us. Experts on finned tube network have no idea about it. There are two main ways of saying: 預埋檢測翅片管的方法解析：The method of embedded inspection of finned tube is analyzed.（1）樁徑0.6-0.8m應埋設雙翅片管；樁徑0.8-2.0m應埋設三根翅片管；樁徑2.0m以上應埋設四根翅片管，根據赤峰橋具體情況，樁基可埋設三根翅片管。(1) Double-finned pipes should be embedded in the pile diameter of 0.6-0.8 m, three finned pipes should be embedded in the pile diameter of 0.8-2.0 m, and four finned pipes should be embedded in the pile diameter of 2.0 m or more. According to the specific conditions of Chifeng Bridge, three finned pipes can be embedded in the pile foundation.（2）聲波檢測翅片管宜采用鋼管、塑料管或鋼質波紋管，其內徑宜為50～60mm。檢測翅片管連接處應光滑過渡，翅片管口應高出樁頂100mm以上，且各檢測翅片管管口高度應一致，管的下端應封閉，上端應加蓋，翅片管內不得有異物，翅片管身不得有破損。(2) Steel pipe, plastic pipe or steel bellows should be used for acoustic finned tubes, and their inner diameter should be 50-60 mm. The joint of the finned tube should be smooth transition, the finned tube mouth should be higher than 100 mm above the pile top, and the height of each finned tube mouth should be the same, the lower end of the tube should be closed, the upper end should be covered, there should be no foreign body in the finned tube, and the finned tube body should not be damaged.（3）檢測翅片管可焊接或捆紮在鋼筋的內側，檢測翅片管之間應互相平行。(3) the finned tube can be welded or tied into the inner side of the steel bar, and the finned tubes should be parallel to each other.購買翅片管的現場檢測方法Field inspection method for purchase finned tube（1）現場檢測前測定聲波監測儀發射至接受系統的延遲時間t。並計算聲時修正值。(1) determine the delay time t of the sonic monitor transmitting to the receiving system before field testing. And calculate the correction time of sound time.（2）測量時發射與接收探頭應以相同標高或保持固定高差同步升降。(2) when measuring, the transmitting and receiving probes should synchronously rise or fall at the same elevation or maintain a fixed height difference.（3）測量點距為40cm，當發現異常時再加密到20cm.(3) the measuring point distance is 40cm, and when it is found abnormal, it will be encrypted to 20cm..（4）選擇適當的發射電壓和放大器增益，並再測試過程中保持不變。(4) choose the appropriate transmit voltage and amplifier gain, and then remain unchanged during the test.（5）實時顯示和記錄接收信號的時程曲線。(5) display and record the time history curve of received signal in real time.（6）將多根翅片管以兩根為一個檢測剖面進行全組合，分別對多有剖面完成檢測。(6) The detection profiles of multiple finned tubes are composed of two finned tubes环氧地坪, and the detection of multiple finned 透水地坪tubes is completed separately.（7）每組檢測管測試完成後，測試點應隨機重復抽測10％，其聲時相對標準差不應大於5％；波幅相對標準差不應大於10％。(7) After each group of test tubes is completed, the test points should be sampled randomly and repeatedly for 10%, the relative standard deviation of sound time should not be greater than 5%, and the relative standard deviation of wave amplitude should not be greater than 10%.