设备安装技术要求-英文翻译

TECHNICAL SPECIFICATIONS FOR INSTALLATION OF MECHNICAL EQUIPMENT 1HIGHLIGHTS OF CONSTRUCTION 1.1Construction preconditions of Equipment Installation The design document and other technical documents are all ready, the construction drawings have been jointly checked up, technique clarification and necessary technical training shall have been accomplished. Relative foundation and trench work shall have been finished，the concrete strength shall not be lower than 75% of design strength. 1.2Acceptance of Equipment Foundation 1.2.1Acceptance of Civil Data Quality certificate. Survey Record and other construction data shall be ready. 1.2.2Foundation checking The position, geometry dimension and quality requirements of the equipment foundation shall comply with the construction drawings and the Code for Construction and Acceptance of Concrete Structures (GB50204-92). Both the foundation surface of the equipment and the reserved holes of anchor bolts shall be cleaned up, the screw thread and the nut of the embedded anchor bolt shall be kept in good condition. The allowable tolerance of equipment foundation dimensions refer to table 1: Table 1 ItemsAllowable Tolerance (mm) Coordinate position (Longitudinal the requirement below must be followed if no other special instructions are available: (1)Anchor bolt shall be vertical in reserved hole free of inclining. (2)The distance between any part of anchor bolt to the hole wall shall be larger than 15mm, and the bolt end shouldnt touch hole bottom. (3)The oil dirt and oxidized surface of anchor bolt shall be clear away, a little grease shall be applied to the screw thread of the anchor bolt. (4)There shall be no distance between the nut and the gasket, and so are the gasket and the pedestal of the equipment. (5)Bolt shall extend out of nut after nut fastening; the exposed length is about 1/3-2/3 of the diameter value of the bolt. (6)The anchor blot shall be fastened while concrete strength in reserved reaches more than than 75% designed value, the fastening strength shall be evenly. 1.4.3Iron Shim The shim size for level adjusting of equipment shall accord with the requirement of construction drawings or technical documents. The common wedge shim and flat shim shall be selected according to Appendix 5 of the Construction Float coat shall be applied to the surface after removal of forms. The inner forms shall be laid when complete grouting is not needed under equipment base and grouting layer would bear load of equipment. 1.4.5Assembly of Equipment The assembly of equipment shall accord with the requirement of construction drawings, technical documents of manufacturer and Code for Construction & Acceptance of Machine & Equipment Installation Works (GB50231-98). Before the equipment assembly, the Contractor shall be familiar with the equipment structure and the technical requirements of equipment assembly. Recheck and cleaning treating on match dimension, relating precision, match face and sliding face of assembly parts shall be done, and the assembly shall be performed according to marks and assemble sequence. As to equipment or parts have inner cavity, careful check and clearance must be done before concealing avoid any foreign substance contained in it. As to oil tank or water tank that difficult to disassembly, check and fix, leakage examination must be done before assembly. 1.4.6Installation of Equipment Accessories The installation of tower and inner parts of equipment shall accord with the requirement of construction drawings and Code for Construction & Acceptance of Machine & Equipment Installation Works (GB50231-98). The installation of inner parts of pump shall accord with the requirement of construction drawings and Construction, Code for Construction and Acceptance of Compressor, Fan and Pump Installation Works (GB50275-98). The installation, pressure testing of accessory pipe shall accord with the requirement of construction drawings and Code for Construction and Acceptance of Industrial Piping Works (GB50236-98). The installation of accessory ladder, platform shall accord with the requirement of construction drawings and Code for Construction and Acceptance of Steel Structure Works (GB50205-95). 1.4.7Equipment Test After the installation completed, all the welding seams of pressure vessel shall be checked according to the Assessment on Welding Technology of Pressure Vessel (JB4708-92) and make record. Pressure experiment shall be performed to pressure container accord with constructing instructions and design requirement after installation. The pressure & leakage test shall be executed according to the Construction Explanation and the Design Requirements after the installation of stove type and familiar equipments that have water double layer. 1.4.8Cleaning and Purging of Equipment When the installation of pump equipment completed, cleaning and purged of such equipment must be carried out according to construction drawings and Construction, Checking and Construction, Code for Construction and Acceptance of Compressor, Fan and Pump Installation Works (GB50275-98). The cleaning and purging of static equipment must be performed after installation according to construction drawings and Code for Construction & Acceptance of Machine & Equipment Installation Works (GB50231-98). 1.4.9Test-run of Equipment The conditions, contents and procedure shall be ready before equipment test-run, as specified in Code for Construction & Acceptance of Machine & Equipment Installation Works (GB50231-98). Make good test-run record during the test-run operation. After test-run of equipment, turn off power supply, drain out water and vent air and clean as per Code for Construction & Acceptance of Machine & Equipment Installation Works (GB50231-98). 1.4.10Taking-over, Inspection and Acceptance of the Equipment Installation Works After all the working pr