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3198233 2010 年 11 月 11 日 11:25 Reading (loading. ..) Comments (0) Category: Professional knowledge
I. General Principles
1. Install the scope of work
the rules applicable to the contract by the contractor responsible for engineering the gate (trash rack) and hoist installation. All projects include the installation of the gate door leaf, door slot embedded parts, gate leaf trash rack and gate slots embedded parts and hoist machinery and electrical equipment and project-related contract with the rod, locking devices, mechanical grab beams, mobile hoist track, based embedded parts, hydraulic hoist of the pipeline, pump stations and other ancillary facilities.
contract also includes installation of the equipment commissioning and commissioning work and commissioning of various temporary facilities necessary for the installation.
2. Employer-provided equipment
Employer shall be responsible for providing engineering contract in the cases of all the equipment.
3. contractor's responsibility
Second, the conditions should have pre-installation
1. Installation Action Plan
Contractor shall install the 30 days before the start of work, submitted to the supervisory unit of the installation contract to install the project action plan, submitted to the supervision unit for approval. Which should include:
⑴ arrangement and description of the installation site, the main layout and description of temporary construction facilities;
⑵ transport and lifting equipment program;
⑶ gate installation method and installation of quality control measures;
⑷ hoist installation method and installation of quality control measures;
⑸ welding technology and welding distortion control and corrective measures;
⑹ gates and hoists of debugging and commissioning of the pilot work plan;
⑺ installation schedule;
⑻ quality assurance measures and safety measures;
1.1 Contractor equipment required delivery schedule
contractor equipment list should be in the business conditions under the provisions of the date of delivery to submit a progress requirements of the equipment installation date of delivery plan, submitted to the supervision unit for approval.
1.2 completed, checked data
⑴ comments above a single submitted in quadruplicate accompanied by Shen Qian, after the contractor project manager (or authorized representative) to submit signed, the supervisor reviewed the comments immediately after the return Shenqian single copy of the original file is not returned. Shenqian comments including
⑵ unless the Contractor's approved access to the views of permits or start the project approval document started. Construction Supervision Engineers conducted the inspection, examination and approval, does not mean you can reduce the contract the contractor should bear the responsibility.
⑶ schedule if the contractor fails to submit to the Supervision Department started to apply the necessary documents and information, and the resulting construction schedule delays and other losses, borne by the Contractor contractual obligations. If the Contractor does not receive within the time limit Shenqian Supervision Department of the views or approval documents, can be deemed to have submitted to the review.
2. contracting responsibilities
2.1 Acceptance of delivery of equipment responsibility
⑴ Contractor shall place of delivery specified in the contract to provide equipment to receive the Employer to the Employer and the Contractor under a common list of equipment checks, inventory procedures after the official transfer process.
⑵ Contractor shall participate in the contract equipment manufacturing factory inspection. After acceptance, the Contractor together with the Employer to sign the acceptance document.
2.2 responsibility for transport and storage equipment
⑴ Unless otherwise specified, all equipment delivered to the place of delivery, the Contractor shall conduct unloading, storage and storage. Contractor shall be responsible for the place of delivery to the construction site of the transport work.
⑵ Contractor of the equipment in the official receiver, due to unloading, loading, transportation and storage losses and damage caused by improper, should bear full responsibility.
2.3 equipment installation responsibilities
Contractor shall be responsible for all equipment listed in terms of the contract documents on-site installation, commissioning and trial operation including equipment work. And shall be responsible for providing installation of the necessary labor, materials, equipment and installation and testing apparatus, and is responsible for completion of maintenance work before acceptance.
2.4 equipment warranty responsibility
according to the contract, the Contractor shall bear all the construction and installation of installed equipment in the maintenance and warranty period of defects in repair work.
Third, equipment installation and process requirements
1. General requirements
1.1 before installing this contract should have all items of information;
1.2 installation control point location map;
1.3 installation testing must be selected to meet the precision requirements and approved by the state metrology institutes qualified equipment;
1.4 Contractor in the installation of all materials used should have a certificate factory, and should meet the construction drawings and the state of the existing standards.
2. equipment lifting and transport
Contractor shall regulate the provisions of the relevant provisions, equipment assembly and parts under different circumstances and requirements, develop detailed lifting and transport solutions, its content, including the use of lifting and transport equipment, lifting and transportation of large methods and structures to prevent the lifting process of deformation and damage of equipment protection.
3. pre-installation inspection and cleaning
3.1 pre-installation check
Contractor during the contract prior to installation of the equipment shall be provided for the content of the drawings, a comprehensive inspection and equipment installation position of the case the integrity of components and spare parts and integrity. Important components and parts should be checked by pre-assembled.
3.2 clean-up
equipment installation, the contractor should provide the Employer's equipment, according to the construction drawings and manufacturing technical specification requirements, the necessary cleaning and maintenance.
4. Welding
4.1 welders and non-destructive testing personnel qualifications
⑴ seam welder in the field installation, the authorities must hold valid certificates issued by the welder. Welder welding work interruption for more than 6 months, the test should be new, on-the-job supervision units have the right to conduct spot checks of work evaluation of welders.
⑵ NDT personnel must hold a qualification certificate issued by relevant state departments. Evaluation of weld quality class II and II should be above the detection officer.
4.2 Welding
⑴ selection of welding materials shall meet the construction requirements of the drawings, it should also comply with the provisions of relevant standards and regulations.
⑵ contractor welding material used in each batch, product certification and shall be accompanied by instructions, and supervision units should be carried out sampling instructions, test results should be submitted to the supervisor.
⑶ custody of welding and baking should be consistent with the provisions of Article DL/T5018-94 Section 4.3.6.
4.3 Welding
⑴ carrying out the contract of each component of a project, two types of weld before, should be DL/T5018-94 section 4.1.2 -4.1.19 provides welding procedure qualification, the Contractor shall Welding Evaluation report sent to supervision unit for approval. If the Contractor needs to change the original assessment of the welding method,
cheap hyperfuse, direct supervision unit must be re-welding technology.
⑵ Contractor shall report the approved welding procedure qualification and DL/5018-94 the requirements of Article 4.3 of welding procedures, supervision units submitted for approval.
4.4 welding quality inspection
⑴ DL/5018-94 all welds shall be according to the provisions of Article 4.1.1 of visual inspection;
⑵ NDT weld section 4.4.3 shall be DL/5018-94 to the provisions of Article 4.4.7.
⑶ weld NDT sampling rate, in addition to Section 4.4.4 should be DL/5018-94 Article, but also supervision units should be designated sampling site, the general should be chosen in random parts of the site prone to defects and should be spot checks to each welder's work area.
4.5 repairing weld defects and process
repairing weld defects and treatment should be DL/5018-94 the provisions of Section 4.5.
4.6 to eliminate stress treatment
supervision unit under the gate structure of the situation, the right to require the Contractor to eliminate stress on the critical weld processing, the Contractor shall direct supervision units, development of technical measures to eliminate stress, to supervision units for approval and implementation.
5. bolt connection
5.1 Contractor shall purchase products that bolting is certificate and other documents submitted to supervisor.
5.2 bolts, nuts and washers should be classified storage, safe custody, to prevent corrosion and damage. Make use of special high strength bolts shall be marked to prevent mixing between ordinary bolt.
5.3 steel members connected with the ultimate right of ordinary tightness of bolts should be bolted down to 50% -60% torque, and should make all off torque bolts to keep even.
5.4 installation, high strength bolt and the friction surface Vice test items to be carried out should meet the relevant standards and regulations conditions.
5.5 pairs of high strength bolt installation shall comply with JGJ82-91 the provisions of Section 3.4.
5.6 bolt connections made after installation check the contents of the corresponding standards and regulations should be consistent with conditions.
6. Anti-corrosion coating
anti-corrosion coating
6.1 range
⑴ site installation-20mm on each side of the weld within the steel surface;
⑵ Contractor to accept the transfer of equipment, all equipment surface coating on the location and extent of damage to damage the progress of inspection, the inspection results should be reported to supervisory agencies, need to repair damaged parts of the coating is recognized subject to supervision units;
⑶ construction drawings specified by the contracting parties to complete the painting site.
anti-corrosion coating material
6.2
painting contractor purchased materials, and its varieties, properties and color should be used with the manufacturer the same coating material. If the Contractor require the use of alternative materials, it should be painted a trial to prove their qualification and approval by the Commissioner to use.
anti-corrosion coating technology measures
6.3 report
Painting Contractor 30 days before the start of construction, construction drawings and manufacturing should be the requirements specification coating process, coating process measures submitted site reports submitted to the supervision unit for approval. Process measures should explain and guarantee measures of environmental conditions, surface pretreatment measures, various painting materials, apply a defined method, the use of equipment, quality inspection and damage repair measures.
6.4 surface preparation
⑴ before painting should be painting parts of the rust, scale, oil, dust, moisture and other contaminants removed. Surface Preparation grades of steel gates should meet DL/T5018-94 and article 7.1.3 of the standards specified in Article 7.1.4. Door frame, frame and other major structural parts rust levels should reach DL/T5019-94 Section 3.5.2 of the Ordinance.
⑵ painting before the start of steel surface if the inspection found rust contamination or back, should be re-processed until approved supervision until the unit.
6.5 Construction of anti-corrosion coating
⑴ qualified pretreated steel surface as soon as possible priming (Ac sprayed aluminum gate). In wet weather conditions, the primer should 4h (2h aluminum gate within the spray Ac) completed; or better in sunny weather conditions, the maximum should not be over 12h (aluminum gate Ac 8h).
⑵ Contractor shall be in strict accordance with the approved coating materials and workmanship for painting, coating layers, each layer thickness, layer by layer coating and painting materials, the interval formula, etc.,
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⑶ following shall not be under construction painting:
① air relative humidity exceeds 85%;
② surface temperature below the atmospheric dew point above 30;
③ If the manufacturer instructions as otherwise provided, the construction should be according to their requirements.
6.6 antiseptic quality inspection
⑴ film coating of the visual inspection, shall be DL/T5018-94 the first requirements of Article 7.3.2; metal spraying visual inspection, shall be DL/T5018-94 the first requirements of Article 7.5.1.
⑵ with thickness, pinhole detectors and special cutting tool for film thickness, film pinhole and the film adhesion test, the test results should meet the DL/T5018-94 section 7.3.3 of the requirements.
7. rubber adhesion
7.1 closure of all gates rubber seal adhesive joints, the contractor should be selected through the test bonding method, and should be approved by the supervisory agencies.
If using hot glue
7.2 when the plant should be provided by the operating rules of rubber seal for bonding and curing, and rubber seal should be provided with the same shape and heat laminated section.
If using cold glue
7.3, the Contractor shall submit a supervision unit, including the technical performance of cold glue and related to the number of bonding process and bonding measures for the cold test data report submitted to the approval of supervision units for approval before using.
8. electrical equipment
the installation of electrical equipment should be in accordance with the approved construction drawings and technical documents of the relevant provisions.
9. Test Program
Contractor shall be in accordance with relevant technical documents and specifications were prepared for testing various types of equipment reported a large steel engineer for approval and implementation.
IV Supervision and Control of the installation process
1. Installation of Embedded
1.1 all buried in a buried concrete and two pieces of concrete shall comply with the requirements of the construction drawings.
1.2 embedded parts, including main and auxiliary rail, anti-rail, side rails, angle, end sills, lintels (or parapet), and pivot, bolt, cylinder bearings and the basis of embedded parts for electrical equipment All of the projects such as laying pieces.
1.3 unit connection for each installation shall be in accordance with the requirements of the construction drawings. Embedded parts for welding, the Contractor must develop strict measures to prevent deformation of the process to ensure quality installation of embedded parts.
1.4 gate slot embedded parts in place adjustment is completed, should be a piece of concrete embedded in the weld. Soldered directly to the reinforcement material is strictly prohibited in the main rail, anti-rail, side rails, lintels (parapet), and other work surface or seal the seat board.
1.5 gate slot embedded parts of all stainless steel fittings, must be used to match the stainless steel electrode for welding.
1.6 embedded parts of the connection surface of all welds, welding installation is completed, Phase II backfill Guyana coagulation, must be carefully polished, the surface roughness consistent with the welding components.
1.7 embedded parts installed, should all work surfaces (such as the main rail face, water-sealed stainless steel surface, Block, etc.) to clean, clear cement mortar or debris. Elimination of gate slot within the normal work of all the exposed gate material.
1.8 installed gate slot, in addition to the main rail track surface, seal the surface of stainless steel blocks, the other exposed surfaces shall be according to drawings or technical documents related to construction of provisions of anti-corrosion treatment.
2. radial gate installed
2.1 installation technical requirements
⑴ before the implementation of installation, the Contractor shall prepare the installation process the report, which should include the setting of the gate assembly platform, the gate assembly of the manufacturing unit of fixed measures (such measures should not affect the size of the installation of the inspection), welding process and weld quality inspection, preparation of special tools, lifting anchors used in large, the rings of laying and security measures.
⑵ Radial Gate Hinge Block (or the pivot assembly) of the installation and reinforcement of the end of, after approval by the Engineer, be allowed to hinge on the Radial Gate II Block pouring concrete for backfill. Phase II design strength of concrete can be radial gate arm and the pivot seat connection.
⑶ radial gate door leaf assembly is completed, the door leaf with model checking and model of longitudinal curvature of the gap. Check with the model, the plate length of not less than 1.5m. Test results meet the requirements for installation after the welding seam.
⑷ radial gate installed seam welding of all, should try to avoid welding in the overhead position welding positions, overhead position welding seam position welder must be qualified by the appropriate welding.
⑸ Contractor's arrival should be based on the situation of rubber seal, water seal on the radial gate side and bottom seals, according to the required length and then a good bond with a water seal plate with drilled bolt holes. Rubber bolt hole of water, should use the rotation method using special drill bit processing. No blanching method by stamping method and processing. The aperture should be smaller than the bolt diameter 1mm.
⑹ radial gate installed, inspection and approval by the Engineer, the contractor can install the weld had just near the door or in the installation of corrosion damage caused during transportation of parts for corrosion repair, and then an overall anti-corrosion treatment of the gate .
2.2 Radial Gate opening and closing test
⑴ gates installed, first remove all the installation of temporary facilities, clear debris.
⑵ in the water the whole trip under conditions open and close test. Check the pivot rotation, whether the card during the opening and closing the gate resistance, whether the damage the rubber seal, sealing it tight and so on. Open and close when the rubber seal should be lubricated at the shower water.
⑶ technical documentation for the action of water by opening and closing test, the test program shall be submitted to Engineer for approval.
3. Plane Gate Installation
3.1 Technical Requirements
⑴ before the implementation of installation, the Contractor shall prepare the installation process the report, which includes assembling the gate of the manufacturing unit of fixed measures (such measures should not affect the size of the installation of the inspection), welding process and weld quality inspection , preparation of special tools, lifting large anchor used, the rings of laying and security measures.
⑵ plane gate of the assembly and welding work, should slot in the door of the gate at the top of the platform, to consider lifting equipment able to assemble a good direct lift gate,
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⑶ support the installation of the main gate should be installed in the door leaf structure welding completed, after passing through the measurement and correction can take place. All the main bearing surface should be adjusted to the same plane, the error is not greater than the construction drawings or technical documents.
⑷ off beam positioning device automatically linked to the installation, in addition to the construction drawings shall meet the requirements, and pay attention to and automatically linked with the beam off, to ensure their safe and effective action.
⑸ plane gate installed in the rubber seal adhesive, screw machining, welding and other post-processing and preservation work, can refer to the relevant provisions of this chapter.
⑹ plane gate should be static balance test. Test methods are: the gate hanging off the ground 100mm, wheel or slide through the center of measuring the upstream and downstream with the left and right direction of the tilt, the general single hanging point of the tilt plane gate door height should not exceed 1 / 1000, and not greater than 8mm; plane tilt wheel gate door height should not exceed 1 / 1500, and not more than 3mm; when more than the above provisions, should be weight adjusted.
3.2 Plane Gate opening and closing test
⑴ gates installed, first remove all the installation of temporary facilities, clear debris.
⑵ in the water the whole trip under conditions open and close test. Check the slide or wheel running, whether the card is the process of lifting the gate resistance, whether the damage the rubber seal, sealing it tight and water-filled device in travel freely within the scope of such movements is the situation. Water for water-filled test after test.
⑶ hanging plane sliding gate before entry slot, the sliding gate on the bearing surface should be coated with calcium-based grease, anti-wheel, side wheel sets should be filled with grease. Seal rubber seal and stainless steel base plate of the contact surface, the process of lifting the gate should be lubricated by water shower.
⑷ slot plane started rolling before hanging gate, the main wheels, anti-wheel and axle sets side should be filled grease. Rubber seal and stainless steel base plate does not cover the contact surface, the process of lifting the gate should be lubricated by water shower.
⑸ slot for more than one plane gate, the gate to the plane door in each slot, respectively, for opening and closing test, hanging off the beam with automatic opening and closing the gate when the test should be checked before automatically hanging off the beam hanging decoupling flexible reliability.
⑹ conditions, the work of the gate should be dynamic water test. Test Program shall be submitted to Engineer for approval.
⑺ gate opening and closing test is completed, the gate should be placed after inspection at a designated place and properly maintained.
4. trash rack installation
4.1 leaves the gate assembly when the trash rack should be such that the distance between trash rack size consistent with the provisions of the construction drawings.
4.2 bar sewage connection between two sections of the gate, in addition to the framework deal with side columns of Qi, the trash rack should also be homogeneous. Rack front left and right direction and the maximum displacement should be less than 0.5 times the thickness of trash rack.
4.3 gate body hanging into the gate slot, should be down test, check the body of the gate in the gate without jamming phenomenon, the reliability of the connection sections.
5. Fixed hoist winch installation of Supervision and Control
5.1 installation technical requirements
⑴ hoist manufacturer Contractor shall provide drawings and installation instructions required for installation, commissioning and commissioning. Installed hoist, the mechanical and electrical equipment should meet the performance to construction drawings and manufacturing technical specification requirements.
⑵ the basis of installed building hoist,
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⑶ the installation of hoisting equipment shall be DL/T5019-94 relevant provisions of Article 5.2.2 conducted.
⑷ hoist installation and testing of electrical equipment, should be the construction drawings and DL/T5019-94 Section 5.2.3 and the provisions of section 5.3. All electrical equipment should be grounded.
⑸ installed on each hoist, hoist the contractor should clean up and repair the damaged paint protection, and technical specification requirements according to the manufacturer, filling grease.
5.2 test run
fixed hoist winch installed, the Contractor shall be conducted under the supervision units to participate in the testing and commissioning of the following items:
⑴ test requirements for electrical equipment for the implementation of Article 5.3.1 by DL/T5019-94. PLC control on the use of electrical control equipment should be first on the debugging software to simulate the normal and correct signal, and then on-line debugging.
⑵ no-load test. Hoist load test was not the case with the gate connected to the no-load running test. Load test should be consistent with the first construction drawings and DL/T5019-94 the provisions of article 5.3.2.
⑶ with a load test. Hoist with load test is connected with the gate in the design of operating head of the circumstances of the opening and closing test, load test should be targeted with different types of gate hoist section 5.3.3 respectively DL/T5019-94 Article relevant provisions.
⑷ hoist Contractor hydrodynamic conditions during the test with a load before the test program should be prepared, to be implemented after approval of supervision units.
6. mobile hoist installation
this project, including mobile hoist gantry crane, trolley and electric hoist.
6.1 track installation
rail mounting provisions of the construction drawings should be,
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⑴ mobile hoist track installation, the contractor should examine the shape and size of rail and found that value bend, twist, such as deformation, should be corrected and checked by qualified supervision units before installation.
⑵ lifting track, should track the installation of measurement and calibration baseline. Track the actual center line and the baseline deviation: when the span of less than or equal to 10m, should not exceed 2mm; when the span is greater than 10m, should not exceed 3mm.
⑶ gauge bias: When the span of less than or equal to 10m, should not exceed ± 3mm; when the span is greater than 10m should be no more than ± 5mm.
⑷ track vertical straightness error should not exceed 1 / 1500, the highest point in the whole trip and the lowest point of difference should be less than 2mm.
⑸ two parallel tracks with the cross-elevation relative difference: When the span of less than or equal to 10m, the corresponding two columns at the track surface elevation should be less than 5mm; when the span is greater than 10m, the corresponding two columns at the The track surface elevation should be less than 8mm.
⑹ location of the two parallel tracks of the joints should be staggered, staggered from the front and rear wheels of the track should not be equal. Connection with the connection plate joints, the two rail joints left and right offset and not greater than the difference between high and low orbital plane 1mm, joint clearance should not exceed 2mm. The gap at the rail joints to allow deviation of ± 1mm.
⑺ rail installation are met, all trees should be fully re-fastening bolts.
⑻ rail cars across the file should be in the mobile lifting hoist installed before; the same across the two vehicles with the end of the buffer should be approached with a good block, a deviation should be adjusted.
6.2 Hoist technical requirements
⑴ mobile hoist installation, commissioning and trial run should be the construction drawings and technical documents related to and in accordance with the relevant provisions. Installation of the rail system, power supply devices and other ancillary equipment, accessories, should also be consistent with the construction drawings and technical documents.
⑵ some light lifting mechanism fixed hoist winch installation of relevant articles. Door frame and the car must be installed in accordance with relevant regulations.
⑶ installation of electrical equipment, according to the requirements of the implementation of relevant provisions of this chapter.
⑷ electrical equipment in the operating room should be no exposed live parts, car and walked the stage in the electrical equipment room should guard or fences, outdoor should rain cover.
⑸ not charged all the electrical equipment enclosure or frame should be reliably grounded.
⑹ hoist machinery and electrical equipment installed and adjusted by inspection, before the commissioning.
6.3 Mobile Hoist commissioning
commissioning steps are no-load test run, static load test and dynamic load tests and other three steps. 15d Contractor shall notify the manufacturer in advance, engineers, etc., and the presence of the interested parties make a trial run, while making test records.
⑴ no-load test run: no-load test run when the lifting mechanism and the running gear (dolly and carts) should be three round-trip itinerary, respectively. Parts of machinery and electrical equipment should be correct and reliable operation, smooth, non-impact sound, and other anomalies.
⑵ static load test: The test load with the rated load, respectively, followed by 70%, 100% and 125%. Main hook to load suspended from the ground 100mm, which lasted less than 10min, hoist performance should meet the design requirements, the door Ke (Taiwan frame) to allow the deflection of less than the design value, and no permanent deformation after unloading. Test shall be repeated three times to record.
⑶ dynamic load test: The test load using the rated load, respectively, followed by 100% and 110%, test, according to design requirements of the organization should also start the combination of two agencies for the repeated start, run, stop, forward, reverse such action, trial continues at least 1h. Agencies should be flexible movement, smooth and reliable, the limit switches, safety interlock device protection, anti-climbing devices shall be accurate and reliable operation, all parts should not be any damage, the connection may be loose.
⑷ qualified contractor should install the trial of mobile hoist stop at designated sites, and carry out the necessary maintenance.
7. hydraulic hoist installation
7.1 installation technical requirements
⑴ hydraulic hoist cylinder assembly, hydraulic station and hydraulic control systems, electrical systems, plumbing and basic embedded parts, etc., should be the construction drawings and technical specifications for factory installation, commissioning and commissioning.
⑵ hydraulic hoist cylinder rack support the installation of bias should be consistent with the provisions of the construction drawings, no provision in the case, the coordinates of the center fuel tank supporting deviation is less than ± 2mm; elevation deviation is less than ± 2mm; The fuel tanks of the floating bearing, the thrust level of Ring deviation is less than 0.2/1000. Twin-lift hydraulic hoist of the two bearing surfaces or bearing center height does not exceed ± 0.5mm.
⑶ before installation contractor should cylinder assembly visual inspection, and factory technical manual controls time limits, determine whether the disintegration of the cleaning. As a result of extended storage, the disintegration of clean upon inspection, the contractor shall be reported to supervision unit cleaning program implemented after the approval. The disintegration of cleaning must be factory-site technical service personnel under the overall guidance.
⑷ Contractor shall be in strict accordance with standardized procedures and requirements of the relevant provisions of the piping configuration and installation.
⑸ grade hydraulic oil should be consistent with the construction drawings. Fluid in the injection system must be filtered before it reaches cleanliness standards listed in Table 6-1. Laboratory tests on the ingredients comply with the relevant standards.
system type
pollution
Standard Grade
general system
proportional system
servo system
ISO / DIS 4406
18/15
16/12
15/12
NBS 1638
9
7
6
SAE 749D
6
4
3
⑹ hydraulic tank cleanliness must be checked before installation, and technical specifications meet the requirements of manufacturing, all the pressure gauges, pressure controllers, pressure transmitters Dengjun to verify accuracy.
⑺ hydraulic hoist control and testing of electrical equipment installation shall comply with construction drawings and manufacturing technical specification requirements. Cable installation should be in order. All electrical equipment should be reliably grounded.
7.2 hydraulic hoist the commissioning
⑴ hydraulic hoist is installed, the Contractor shall participate in the supervisory unit under the following testing and commissioning of the project.
⑵ of the hydraulic system pressure test. Hydraulic piping test pressure: P ≤ 16Mpa time, P = 1.5P: P> 16Mpa time, P = 1.25P. The remaining test pressure conditions were selected according to various designs. Test pressure in the packing of the 10min, check the pressure change and oil pipeline systems, oil leakage case, setting a good pressure of the relief valve of the overflow.
⑶ head hanging in the piston rod is not connected with the gate of the case load for the whole trip back and forth three tests to rule out the tanks and piping in the air, test pump, valve and electrical the correctness of the operating system, testing and system starting pressure cylinder resistance rod exercise should be no creeping phenomenon.
⑷ hanging head and the piston rod connecting the gate of the gate to withstand water pressure is not the case, the start gate and door gate operating conditions the whole trip back and forth action test three times, setting and adjusting the gate opening sensor , stroke limit switches and electrical and hydraulic components of the set value, testing the motor current, voltage and oil pressure data and start the whole trip, closing the exercise time.
⑸ withstand water pressure at the gate of the case, the hydraulic hoist the hoist rated load exercise test; detection of motor current,
kobe zoom iv, voltage and system pressure and start the whole journey, the movement of closure time. Check the opening and closing process should be no excessive vibration, start and stop should be no severe impact of the phenomenon.
⑹ analog electrical control equipment, action test should be carried out properly, before making an online test.
8. screw hoist installation
8.1 installation technical requirements
⑴ hoist manufacturer Contractor shall provide drawings and installation instructions required for installation, commissioning and commissioning. Installed hoist, the mechanical and electrical equipment, the performance should be consistent with the construction drawings and manufacturing technical specification requirements.
⑵ the basis of installed building hoist, be firm and safe. Base and infrastructure components of the concrete, the provisions of the construction drawings should be pouring the concrete strength has not yet reached the design strength, the changes are not allowed to hoist the removal and temporary support, but not for debugging and commissioning.
⑶ hoist installation of mechanical equipment shall be DL/5019-94 in Article 6.2 of the relevant provisions.
⑷ hoist installation and testing of electrical equipment, should be the construction drawings and DL/T5019-94 the provisions of Section 6.3. All electrical equipment should be grounded.
⑸ installed on each hoist, hoist the contractor should clean up and repair the damaged paint protection, and technical specification requirements according to the manufacturer, filling grease.
8.2 Screw Hoist commissioning
screw hoist installation is complete, the Contractor shall be conducted under the supervision units to participate in the testing and commissioning of the following items:
⑴ test requirements for electrical equipment for the implementation of Article 6.3.1 by DL/T5019-94 section. PLC control on the use of electrical control equipment should be first on the debugging software to simulate the normal and correct signal, and then on-line debugging.
⑵ no-load test. Hoist load test was not the case with the gate connected to run under load test. Load test should be consistent with the construction drawings and DL/5019-94 the provisions of Article 6.3.1.
⑶ with a load test. Hoist with load test is connected with the gate in the design of operating head for opening and closing test cases with different load test should be the nature of the gate hoist respectively DL/T5019-94 related article 6.3.2 regulations.
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