设备安装技术要求-英文翻译

TECHNICAL SPECIFICATIONS FOR
INSTALLATION OF MECHNICAL EQUIPMENT
1 HIGHLIGHTS OF CONSTRUCTION
1.1 Construction 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.
1.2 Acceptance of Equipment Foundation
1.2.1 Acceptance of Civil Data
Quality certificate.
Survey Record and other construction data shall be ready.
1.2.2 Foundation 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
Page 1 of 7
1.3 Unpacking Inspection of Equipment
Unpacking inspection of equipment shall be executed under the supervision of the
Owner’s personnel, Contractor shall inspect the following items:
Appearance , quantity, specification and model of the equipment
Packing list and other technical dada.
During the inspection Contractor shall keep all the records.
Equipment , spare parts and special tools shall be carefully kept.
1.4 Installation of Equipment
1.4.1 Positioning and Aligning of Equipment
The baseline of installation shall be designated accord with construction drawing and
relating axis, edge line or elevation line before equipment positioning.
The allowable tolerance of of the distance from plane installation bench mark to
actual foundation axis or between actual shop wall axis and edge line is ±20mm.
Refer to Table 2 for the allowable tolerance of plane position and elevation of the
positioning plane, line or point to bench mark:
Table2
The allowable tolerance of equipment installation refers to table 3: Table 3
1.4.2 Anchor Bolt
The Anchor bolt in the reserved hole shall accord with the requirement of
construction drawing and design document; 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 shouldn’t 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.
1.4.3 Iron 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 & Acceptance Criterion of Machine & Equipment Installation Works
(GB50231-98).
1.4.4 Grouting
The grouting between the foundation and pedestal of the equipment/the reserved
hole of the anchor bolt shall comply with the Code for Construction and Acceptance
of Concrete Structures (GB50204-92).
The grouting place shall be cleaned up before grouting. The concrete grade used for
grouting is one grade higher than that used for foundation or ground. Grounding
shouldn’t make anchor bolt inclined or affect installing precision of the equipment.
The thickness of grouting layer shall accord with design requirement, commonly not
less than 25mm.
The outer forms shall be laid before grouting, the distance of outer forms from outer
edge of equipment base shouldn’t less than 60mm; 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.
1.4.5 Assembly 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.
1.4.6 Installation 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).
1.4.7 Equipment 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.
1.4.8 Cleaning 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).
1.4.9 Test-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).
1.4.10 Taking-over, Inspection and Acceptance of the Equipment Installation Works
After all the working procedure of equipment have finished, the Contractor shall pack
up all the construction documents and perform inspection & acceptance of the
Equipment Installation Works under the supervision of relative personnel if the
test-run of equipment is successful and meet the requirements of Design and Relative Specifications.
At last the Contractor shall go through the formalities of taking-over procedure.
ATTACHED ILLUMINATION：
This Standard Is Kept By Technique Department.
This Standard Was Prepared By Construction Management Department.
THE MAIN DRAFTSMAN OF THIS STANDARD：Xu Qing
Checked by ：Xu Xingguo / Wu Benlun
Approved by ：。