高参数锅炉给水预热器的改造

Modification of the Feedwater Preheater of a High-parameter Boiler

进口100E11锅炉给水预热器存在着热力性能不能满足工艺系统需要以及管箱泄漏问题。应用户要求,对这台锅炉进行设备改造。通过对设备的材料、结构及工艺的更新与改造,解决了高压管箱密封难题;改善了设备热力性能,增大了换热面积,满足了工艺系统要求。长期运行表明,改造效果良好。

Concerning the imported 100E11 boiler feedwater preheater,there exist such problems as the failure of its thermodynamic performance to meet the requirement of process systems and the leakage of tube boxes.In response to the request of end-users,a modification of the boiler was performed.Through a renovation and change of the materials,structure and manufacturing technology of the equipment items,the intractable problem concerning the sealing of high pressure tube boxes was resolved,the thermodynamic performance of the equipment items improved,and the heat exchange areas were enlarged,thus meeting the requirement of the relevant technological systems.The long-time operation has shown that the modification has achieved good results.