第二部分 设备安装具体方案
设备安装工程内容包括(不限于):
污水处理厂所有设备安装(包括所需材料、配件),钢结构等的供应、制作、安装;
安装前对安装设备、材料的检验、试验和验收保管;
设备的调试及其他必要的检验、试验等工作内容。
在本工程中需要安装的设备较多,我方本着先安装重、大关键的设备,后安装小型设备的原则进行安装。管道工程安装中依照先干管、后支管;先大管后小管;先里面后外面的原则进行安装。
在施工过程中,依次作业施工、流水作业施工和交叉作业施工三种形式同时进行。
Part II
Idiographic Project of Installing the Equipments
The content of installing equipments engineering includes ( Not limited to):
The installation of all the equipments of the sewage treatment plant ( including the material and fittings needed), the providing , fabrication and fixing of the steel structure.
The checkout, testing, checking and accepting, and safekeeping before installation;
The work of the debugging and other necessary checkout and testing of the equipments.
As there are a lot of equipments needed to be installed in this project, we will carry through the installation in conformity with the principle of installing the heavy, big and pivotal equipments first and then installing pint-sized equipments. While installing the pipelines, we will carry through the installation in conformity with the principle of installing the main pipelines first and then the branch ones, big pipelines first and then small ones, inside first and then outside.
In the course of construction, the three methods of construction will be used at the same time, that is ordinal process of construction, flow process of construction and intersectant process of construction.
一 格栅安装
1. 测量基坑的长度,检查与设计是否相符。在基坑上边的角钢处拉一尼龙线,要求等高水平,并平行基坑横向方向,再分别等分,量出每片栅片的位置。
I. Installation of Bar Screen
1 Measure the length of the foundation ditch to see if it corresponds with the design. Draw out a nylon line at the place of the angle iron over the foundation ditch, contour is required. Parallel the transverse direction of the foundation ditch, part separately, and measure the position of each bar.
2. 用吊车把栅片摆放在就的平坦的地面上,焊小车导轨,小车两导轨的跨距和高度与清污机上导轨尺寸相同,跨距从格栅中心线向两侧等分总误差不行大于2.5mm,高度控制必须严格,与清污机上导轨接口处允许误差1.5mm。
2 Put the bars on the flat ground with a crane, weld the lead rail of the larry, the span and height of the two lead rails of the larry are the same with the size of the lead rail of the clean-up device. The total error of the span from the center line of the bar screen to the parts of two sides should be less than 2.5mm. The height must be controlled strictly. The permitted error at the interface to the lead rail of the clean-up device is 1.5mm.
3. 把栅格吊入基坑内,按每片的预定的位置放正,调正垂直度,格栅正向、侧向90°。采用控制上垂直边缘垂直为准,自然形成70°,逐个按上述要求调正后,进行逐一检查。同时保证所有格栅片的之间的间隙均衡、上部水平,直线误差允许在2.5mm以内,不平度1%。固定上面与预埋角钢焊牢,下面利用格栅自身长出100mm槽钢脚与预埋沟底二次浇筑,格栅顶面不齐时可在格脚下面加垫物,反侧也可割除其长出部分。
3 Suspend the bar screen into the foundation ditch, put it straight according to the preconcerted position of each bar, square the perpendicularity, the forward direction and side direction of the bar screen should be 90°. Take the perpendicularity of the upper edge as the standard, make it form 70° naturally, square them one by one according to the requirements above and check up one by one. At the same time, ensure that the clearance between all the bars should be even and the upside should be aclinic. The permitted error of beeline should be within 2.5mm, asperity 1%. Fix up the upside and weld with beforehand- buried angle iron. Underside, use the length of the bar sc
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