汽轮机发电机安装程序

汽轮发电机安装过程简要描述

General description of the site assembly of the

Steam turbine and generator

汽轮机：Turbine

1.1汽轮机运转平台基础浇灌前预埋件检查，重点检查预埋件的标高、

垂直度、布置，检查预埋套管自带螺母的螺纹，在预埋套管顶部加装保护罩，安装水平测量点，使用钢板保护，土建开始基础浇灌。

Inspection of the turbine foundation embedded parts before concrete pouring, especially on the arrangement ,elevation, inclination and the screw thread, etc. Protect the top of the sleeves with covers before

pouring.Arrange foundation leveling points ,covering with protect plate.

1.2基础浇灌完成后，对基础进行约一个半月的养护。Concrete pouring

and preservation (normally 1 to 1 and half month depending on the

temperature)

1.3基础养护完毕后，再一次检查浇灌完成后预埋件的标高、垂直度、

布置等，土建划出基础上各基准线，基础移交。Inspection again

after foundation preservation on the embedded parts; Draw the

baseline on the foundation and hand over from civil works to the STG erection.

1.4基础凿毛，去除基础表面浮浆露出鹅暖石。按照锚固件布置图，对

锚固件象脚进行布置，根据扬度曲线调整象脚标高，检查象脚的标高，水平、布置。On the area of placing foundation parts, chipping

the foundation to remove the outer skin of the concrete; According to

the STG arrangement drawing and shaft line alignment diagram, place the “elephant feet” and adjust the leveling; inspection and record of the arrangement and the leveling.

1.5制作锚固件模具，预埋套管顶部做好保护，使用SIKADUR对锚固件

进行浇灌。Build the frame around the “elephant feet” and fix them;

Protect the top of the sleeve with covers and grout with synthetic resin mortar (SIKADUR) to fix the “elephant feet” on the foundation.

1.6待SIKADUR凝固达到额定强度后，安装轴承座。When the hardness

of the SIKADUR reaches the requirement valve, start placing bearing pedestals.

1.7沿汽轮发电机组轴线拉钢丝线，纵向布置各轴承座，模拟转子轴线

纵向拉钢丝，对照钢丝调整各轴承座，并紧固轴承座地脚螺栓。

Install violin wire in the axial center line of the steam turbine and

generator; place all bearing pedestals on the elephant feet, align them to the violin wire and fix the anchorage bolts.

1.8安装轴承座底键，点焊底键，拆除所有轴承座，按要求对底键进行

焊接，焊接过程中加强监视，检查底键焊接。Install the foundation keys of the bearing pedestals, tack weld; remove all pedestals again and final weld the keys to the foundation (inspection during welding).

1.9底键焊接完成后，再次安装轴承座，拉钢丝调整轴承座，并紧固轴

承座地脚螺栓。Installation of pedestals again after completion of key welding, final alignment and fix the anchorage bolts.

1.10低压外缸拼装，低压轴封锥体拼装并找正，低压外缸焊接，低压

轴封锥体焊接，焊接过程中加强监视，焊接完成后检查外缸上下半

间隙，检查外缸的几何尺寸。Assembly of the LP outer casings

(upper and lower casings), alignment and welding; assembly of the

gland steam cone to the outer casings, alignment and welding;

dimension and clearance checks after welding.

1.11安装低压外缸内部的低压喷水减温管道。Assembly of the spray

water pipes inside the LP outer casings.

1.12安装低压外缸下半，安装低压外缸前考虑先行布置凝汽器膨胀节

等安装部件。Separate the LP outer casings upper and lower parts,

place the LP outer casing lower parts on the foundation pit.(before the placement, expansion joint located at the condenser neck shall be

arranged)

1.13安装低压内缸下半，以低压缸两端轴承座为基准拉钢丝，找正低

压内缸下半，并锁紧内缸支撑螺栓。Place the LP inner casings lower halves into the outer casing, align it to the violin wire, and fasten the supporting bolts.

1.14安装低压持环下半，持环分为调端和电端两部分，拉钢丝找正低

压持环下半。Place the blade carriers (control side and generator side) lower halves into the inner casing, align them.

1.15将低压扩散器下半安装到低压持环两端，拉钢丝找正扩散器并锁

紧连接螺栓。Assembly of the LP diaphragms lower halves beside

blade carriers, align and fasten the connecting blots.

1.16安装低压轴封下半，拉钢丝找正轴封体。Assembly of the gland

seal body lower halves, align it to the violin wire.