The main points of filling in the supervision record of the side station
concrete pouring
1, climate: sunny, rainy, temperature (average temperature)
2. Position or process: plane position (axis spacing), floor (or elevation)
Name of member: pouring concrete for column, shear wall, beam and slab.
3, the construction situation
(1) concrete strength grade: cubic meters of concrete poured.
(2) Concrete supply mode: commercial concrete (or on-site mixing concrete)
(3) Mechanical equipment used: pumping concrete (or tower crane hopper), number of vibrators: one.
(4) Number of constructors: people pouring concrete, people watching steel bars and formwork.
4. Supervision: the whole process of on-site supervision.
(1) Check the notice of concrete mixture ratio and the bill of materials;
(2) Check and record the on-site quality inspector or foreman, name: _ _ _ _
(3) Check the cast method: it meets the requirements of the construction plan and is cast well (or has problems);
(4) In the process of concrete pouring, observe the position of reinforcement and the deformation of formwork;
(5) random witness sampling group of concrete test block;
(6) Observe the workability of concrete, the slump of concrete is _ _ _ mm, and it is forbidden to add water on site;
(7) to the commercial concrete mixing station spot-check computer ratio list _ _;
(8) When mixing on site, spot check the measurement of concrete ingredients and record the measured weight of cement, sand, stone, water and additives.
Step 5 find the problem
(1) The concrete mixture ratio is inconsistent with the design mixture ratio;
(2) It is found that the position deviation of reinforcement somewhere is too large or the floor reinforcement collapses seriously or the thickness of concrete protective layer is not well controlled;
(3) It is found that there is mold expansion and slurry leakage;
(4) The concrete pouring sequence is discontinuous, and the connection between new and old concrete is not good; Debris at the friction place is not cleaned up; The vibrating sequence of concrete is not good, and the vibrating intensity is not enough somewhere, which may lead to vibration leakage;
(5) The concrete is too thin or too dry, which affects the pouring or pipe plugging;
(6) In case of heavy rain during the process of concrete casting, rainproof measures are not in place, resulting in concrete flowing.
Step 6 deal with opinions
Inform the on-site quality inspector and the personnel on duty in time. Or the shift leader, take measures to rectify in place. Or notify the project department in writing for rectification.
7. The construction unit shall sign on duty that day.
Issue 7, 2008-Work Exchange
How to Write "Station Supervision Record Form"
Yu (Shanghai Sanwei Engineering Construction Consulting Co., Ltd.)
The on-site supervision record form is a comprehensive and true original data, and it is also the basis to reflect the supervision level and effect. It can not only reflect the technical literacy and professional level of on-site supervisors, but also show their ability and effectiveness in performing supervision duties, and also reflect the management level of supervision enterprises.
Based on the author's own practical experience, this paper discusses how to write the record form of on-site supervision.
Keywords: construction site supervision specifications, site supervision records
introduce
With the further increase and acceleration of national basic industry construction, the necessity and importance of supervision work are becoming more and more prominent. As one of the important contents of supervision work, quality control is generally achieved by establishing strict quality supervision procedures and adopting effective supervision means, and adopting effective supervision means is the key to achieve control objectives, among which side-by-side supervision is the most commonly used control means. In the process of engineering construction supervision, it is one of the important tasks of the supervision unit to seriously implement on-site supervision and record it in detail.
I. On-site supervision
The Code for Supervision of Construction Engineering (GB 503 19—2000) jointly issued by the State Bureau of Quality and Technical Supervision and the Ministry of Construction points out that the side station is a supervision activity carried out by supervisors at the site during the construction of key parts or key working procedures.
For the key parts or processes that are difficult to handle after problems occur, and the key parts or processes that are difficult to check after the completion of the next process of concealed works, the supervisors will track and monitor, and guide the contractor to make rectification in time when problems are found, so as to reduce the occurrence of quality defects and ensure the quality, progress and safety of the project. Engineering practice has proved that this is an effective means for supervision to control engineering quality and ensure the realization of project objectives.
In order to truly reflect the actual situation at that time, on-site supervisors should fill in the on-site supervision record form in time.
Second, the station supervision record
The on-site supervision record form is the original record filled out by the on-site supervision personnel according to the on-site supervision work, the reliable basis for the supervision engineer or the chief supervision engineer to exercise the relevant signing right according to law, and the important material filed after the project is completed and accepted.
Like the supervision diary, the on-site supervision records belong to the real records and original vouchers of supervision work, but they are different.
In the process of construction supervision, the supervision diary records the contents of supervision on that day every day, which is generally filled in by professional supervision engineers and signed by the chief supervision engineer. The contents of the supervision diary are generally as follows:
(1) Basic information: date, week, temperature and climate.
(2) Construction conditions: construction content, engineering meeting content, main materials, machinery, labor force entering and leaving the site, etc.
(3) Problems: such as unqualified project quality or slow progress.
(4) Problem handling: the handling and results of the questions raised; Signed certificate or document memorandum, supervision notice and on-site coordination.
(5) Others: including safety, shutdown and rationalization suggestions.
However, the records of on-site supervision only exist in the case of on-site supervision behavior and do not need to be recorded. The on-site supervision records the contents of key parts or key processes in the construction process, which need to be signed by the on-site supervision and the on-site quality inspector of the construction unit.
Judging from the content of records, the record form of on-site supervision is not as comprehensive, continuous and extensive as that of supervision diary, so it can be understood that supervision diary is a continuous record of engineering supervision, while the record form of on-site supervision is an intermittent record and a special record of engineering supervision, so the two should complement each other. The content of on-site supervision can be reflected in the supervision diary, but it should be recorded in detail and comprehensively in the on-site supervision record form.
Good on-site records can not only enable the construction unit to grasp the engineering trends in time, but also gain the affirmation of the supervision work from the construction unit. At the same time, the supervisors can also listen to the opinions of the construction unit, improve the supervision work in time and improve the service quality. Therefore, a true, timely, accurate and comprehensive record of on-site supervision is the basic quality of every on-site supervisor.
Combining with my own practice, the author talks about how to write a "station service record form" so as to communicate with my peers and seek correction.
Please subscribe to Shanghai Construction Engineering Consulting for the full text.
5. 1. 1 quality supervision of earthwork backfilling
1), the contractor shall select advanced construction machinery and reasonable construction methods according to engineering geology, hydrology and other conditions, and prepare the construction organization design or construction scheme, so as to carry out the construction quickly, well and economically.
2), professional supervision engineer according to the civil construction drawings and engineering geological survey report review earthwork backfill engineering construction organization design or construction scheme and supervise the implementation. The key is to control the soil quality, backfill and compaction methods and dry soil mass density of backfill to meet the design requirements and construction specifications.
3), earthwork backfill construction quality supervision in advance
(1) Study the engineering geological survey report.
(2) Review the contractor's construction organization design or construction technical scheme.
(3) Check whether the backfill meets the design requirements.
4), quality supervision in the process of earthwork construction
(1) Backfill soil must meet the design requirements and construction specifications.
(2) Fill shall be compacted by layers according to regulations, and the sampling position and frequency shall conform to regulations. After sampling and measuring the mass density of compacted dry soil, the qualified rate should not be less than 90%, and the difference between the lowest mass density of unqualified dry soil and the design value should not be greater than 80kg/m2, and it should not be concentrated in a certain area.
5. 1.2 quality supervision of waterproof concrete engineering
Waterproof concrete structure is not only a load-bearing structure, but also waterproof. The basement leakage is mainly caused by poor construction quality. The supervision engineer shall supervise the contractor to strictly ensure the construction quality.
1), waterproof concrete construction process
Construction preparation → concrete cushion → formwork erection on one side → steel binding → formwork sealing on the other side → concrete pouring → maintenance → formwork removal.
2) Prior supervision of waterproof concrete construction quality
(1) Review the contractor's construction organization design or construction technical scheme.
(2) According to whether the groundwater contains aggressive media, check whether the selected cement varieties are appropriate; The variety and dosage of additives should be determined by experiments; The mix proportion and impermeability label of waterproof concrete should be tested by trial matching and meet the design requirements; The quality and index of concrete raw materials must conform to the provisions of the construction and acceptance specifications.
(3) The groundwater level should be reduced to the lowest elevation at the bottom of the waterproof project, and there can be no water in the foundation pit.
(4) The supply of concrete must meet the requirements of continuous casting of the bottom plate, leaving no construction joints.
3) Quality supervision during waterproof concrete construction.
(1) Check the positioning and setting-out axis and elevation of waterproof concrete engineering to make it meet the design requirements. The supervision of formwork engineering and reinforcement engineering of bottom plate and wallboard should refer to the relevant parts of the main project.
(2) The number, embedded position and elevation of wall-penetrating pipe fittings and embedded pipe fittings must meet the design requirements; Do not leak water or make holes after construction: rust and welding slag should be removed from embedded pipe fittings, and water-stop rings should be welded and fixed firmly for embedded parts; Single-pipe embedded and through-wall casing shall be welded with water stop ring and full welding, and the embedded pipe shall be welded with longitudinal and transverse steel bars. After the acceptance, apply for a concealed acceptance visa.
(3) according to the specification requirements, set steel bars around the hole; Measures should be taken to prevent the concrete pouring under the hole from being not dense, such as opening holes on the side and leaving holes to ensure the pouring is dense.
(4) The conduit shall be free of water, and it is forbidden to squeeze the conduit and switch box during vibration.
(5) The bottom plate shall be continuously poured without construction joints. The horizontal construction joints of wallboard should be set according to the design requirements and construction specifications; The treatment of construction joints should meet the requirements of design and construction acceptance specifications, that is, before pouring concrete, scum should be removed, hair should be cut, washed and kept moist, and cement mortar with the same label should be laid first before pouring concrete.
(6) Treatment of post-cast strip; Formwork on both sides of post-cast strip must be made and installed to ensure that the concrete poured first is poured tightly on both sides of post-cast strip; The interval between post-pouring concrete and initial pouring concrete must meet the design requirements, and not less than 42 days; According to the design requirements, the post-cast strip is poured with micro-expansive concrete, and its strength grade shall not be lower than that of the concrete poured for the first time, and the pressure test shall be carried out first, and the mixture ratio is allowed only after the strength is qualified; When pouring post-cast strip, it must be treated according to the practice of construction joints, and the curing period is not less than 28 days.
(7) The impermeability label and strength grade of waterproof concrete must comply with the design requirements and construction specifications; Watering and curing of waterproof concrete shall not be less than 14 day and night; When there is doubt about the strength of waterproof concrete, nondestructive testing can be carried out.
(8) Before painting and filling the waterproof concrete structure, it is necessary to check that the appearance quality of waterproof concrete should comply with the provisions of construction specifications, otherwise the defects should be repaired. After the acceptance, the concealed engineering acceptance visa shall be handled. The quality of waterproof layer of asphalt cementing material must meet the design requirements and construction specifications. After the acceptance, the concealed engineering acceptance visa shall be handled.
5. 1.3 Quality Supervision of Concrete Engineering
Concrete is a composite material composed of many kinds of raw materials. The performance of concrete is not only related to the performance of raw materials, but also related to the mixture ratio, especially the water-cement ratio, the type and dosage of additives.
Mixing, transportation, forming and curing of concrete. When controlling the quality of concrete engineering, professional supervision engineers should fully consider the above factors or links that affect the performance of concrete and take organizational and technical measures to ensure the quality of concrete engineering.
1), concrete engineering quality supervision in advance.
(1) Review the construction organization design
(1) Be familiar with the general construction plan and civil construction drawings, and review whether the organizational measures and technical measures adopted by the construction organization design for specific projects are reasonable according to the structural characteristics of the project and the specific conditions of the construction site. Among them, special attention should be paid to the setting of concrete production, transportation and pouring sequence. When constructing concrete in severe winter and hot summer, and pouring mass concrete, the construction scheme should be specially formulated and corresponding measures should be taken.
(2) When mixing concrete on the construction site, the layout of concrete mixing station, cement silo and sand and gravel yard should be considered as a whole, and the sand and gravel yard should be separated, and sand and gravel should not be mixed with each other; There is a certain reserve, which can ensure continuous production on coagulation; Sand and gravel should be easy to enter, discharge and weigh.
(3) If commercial concrete is used, a commercial concrete station with a production license not too far away should be selected. According to the construction requirements, the concrete quality requirements of the unloading site are put forward.
(2) Check the concrete production equipment and construction machines.
(1) The mixer should meet the needs of concrete pouring, and there should be a spare mixer, and the mixer waterway system should be accurate.
(2) The raw materials must be weighed and the metering device should be calibrated correctly.
(3) The concrete horizontal transportation tools and vertical transportation machinery shall meet the requirements of concrete pouring quantity, and the operation shall be *. Vibrating rod (device) performance should be *.
(4) Detect the slump of concrete and make matching test blocks.
(3) supervision of raw materials
(1) the quality standards, inspection methods and accreditation procedures of cement, sand, stone, admixture and concrete shall comply with relevant regulations, and aggregates containing harmful minerals shall not be used.
(2) Bulk cement should be stored according to varieties, and bagged cement should be stored in batches on wooden clapboards more than 300mm2 above the ground; The stacking height should not be too high, and effective measures should be taken to avoid caking due to moisture.
(3) Sand and stone should be stored on a flat and waterless ground according to varieties and specifications, so as to avoid mixing with foreign bodies.
(4) Admixtures should be stored according to different varieties and their respective requirements to prevent mixing, and pay attention to the failure of expired admixtures. The water used for mixing concrete should meet the corresponding standards.
(4) Review the influence of mixing ratio on coagulation effect.
According to the structural design requirements, professional supervision engineers check whether the concrete mixture ratio is correct.
(5) Sign the concrete cast sheet.
After the acceptance of reinforcement engineering, formwork engineering, water, electricity, heating, communication engineering and concrete pouring preparation, the chief supervision engineer will issue a concrete pouring order.
2), quality supervision in the process of concrete construction:
(1) concrete mixing inspection
Professional supervision engineer shall inspect the mixing process of concrete, and the inspection contents are as follows:
(1) Raw material weighing and water addition control should be accurate;
(2) The feeding sequence and mixing time should meet the specification requirements;
(3) Random sampling test block for slump measurement.
(2) Concrete transportation
If commercial concrete is used, it will be transported by concrete mixer. During transportation, it will be affected by time and temperature.
Factors, the workability of concrete will be reduced. Therefore, slump should be measured at the pouring site. After the workability is reduced, attention should be paid to the concrete pouring and vibrating technology to avoid the problem of loose vibrating such as honeycomb and holes.
The duration from the discharge of concrete from the mixer to the completion of pouring shall not exceed the provisions of the specification.
(3) Concrete pouring, pointing and vibrating
(1) The concrete pouring sequence and method should be carefully considered in advance. The pouring, layering and sectioning of mass and large area concrete should be reasonable; The interval between layers and segments should be planned. Before the initial setting of the previous layer and section, the concrete of the next layer and section shall be poured and the vibrator shall be inserted into the next layer.
(2) The pouring vertical structure should be determined according to the structural form, such as string holes and openings. , to ensure that segregation does not occur during concrete pouring, and to ensure that all parts are poured compactly.
(3) Steel bars and embedded parts shall be carefully poured, and all places shall be vibrated and compacted, and steel bars and embedded parts shall not be touched.
(4) Urge the contractor to strengthen management, so that the operators can carry out the construction in strict accordance with the specific operating procedures.
(4) Maintenance of concrete
Supervise the contractor to assign special personnel to maintain the concrete. After concrete pouring, it is necessary to avoid the harmful effects of freezing and rapid temperature change, and also to prevent concrete from being impacted, vibrated and prematurely loaded during hardening. Specifically, the contractor shall not work on concrete until the concrete strength reaches 1.2N/mm2.
(5) Inspection of concrete quality and repair of defects
(1) According to the strength of the concrete test block, judge whether the poured concrete meets the design requirements, and check whether the deviation of the concrete structure after formwork removal exceeds the specification requirements;
(2) When the concrete structure is found to have beehives, pits, exposed tendons or even holes, the contractor shall not repair them by himself, make detailed records and report them to the professional supervision engineer for inspection, and then treat them differently according to the severity of the defects. For the defects that affect the structural performance, we must study and deal with them together with the design unit.
6. 1.4 quality supervision of reinforcement engineering
Reinforcement engineering is the skeleton and muscle of reinforced concrete structure. The pre-inspection of steel bar engineering is to supervise the quality of the contractor's materials, and the processing and binding of steel bars must meet the requirements of design drawings and construction specifications.
1), be familiar with the structural construction drawing, and make clear the varieties, specifications, binding requirements of design reinforcement and the special treatment of reinforcement in some parts of the structure. Records of the blue prints.the design, design changes and design change notices related to steel bar changes shall be marked on the corresponding structural drawings in time to avoid forgetting and making mistakes. Master the provisions of reinforcement construction measures in the specification.
2), the good raw materials in inspection.
(1) The varieties of reinforcement shall meet the design requirements. The rebar entering the site shall have the ex-factory quality certificate and test report, and shall be marked on the rebar surface or each bundle (slab) of rebar.
(2) The performance of steel bars should meet the specification requirements. The rebar entering the site shall be inspected in batches according to the furnace (batch) number and diameter. According to the provisions of the relevant standards, sampling, physical and mechanical properties test.
(3) Urge the contractor to transport the steel products that have passed the acceptance into the steel yard in time, pile them neatly, hang up the labels, and take effective measures to avoid steel corrosion or oil pollution.
3) For the blanking and processing of steel bars, the contractor's technical personnel are required to make detailed technical disclosure to the steel bar workers. The supervision engineer shall inspect the formed steel bars and notify the contractor to correct any problems found.
4), steel welding, professional supervision engineer should first check the welder's welder examination certificate, before the formal welding, must supervise the welder according to the site construction conditions for trial welding, inspection qualified rear can approve mount guard. The welded joints of steel bars shall conform to the requirements of the specification, and the welded joints shall be sampled and inspected according to the relevant provisions of the test methods for welded joints of steel bars.
5), in the process of steel binding, professional supervision engineer should in-depth on-site inspection, found the problem, pointed out in time, make it correct. After the steel bar binding is completed and the contractor's self-inspection is qualified, fill in the concealed acceptance sheet of steel bar engineering.
(1) The professional supervision engineer shall check the specifications, quantity, spacing, length, anchorage length and joint setting. Check whether the steel binding meets the design requirements and structural measures against the structural construction drawing;
(2) Stirrups in the stirrup encryption area of frame joints and additional hanging bars or stirrups on concentrated load beams shall not be omitted. For thick plate and double-ribbed wallboard, lacing and hook shall be set as required. Control the strength, thickness and position of the reinforced protective layer pad should meet the specification requirements.
6), embedded parts, the location of the reserved hole should be correct, fixed *, reinforcement around the hole should comply with the design requirements.
7), steel shall not be arbitrarily substituted. If you need to substitute, you must go through the change formalities with the consent of the design unit. Professional supervision engineers accept corresponding reinforcement. When pouring concrete, the professional supervision engineer shall urge the contractor to assign a special person to be responsible for the reinforcement.
5. 1.5 quality supervision of coiled material waterproof layer project
1), supervise the waterproofing construction quality of coiled materials in advance.
(l) Check whether the materials used for coiled material waterproofing meet the design requirements and construction specifications, and check the certificate of approval and test report.
(2) The base surface of the coil must be solid and dry, without sand and empty drum; The base surface should be smooth, the maximum clearance between the base and 2m ruler should not exceed 3mm, and the base surface should be clean; Yin and Yang angles should be made into circular arcs or obtuse angles.
2), quality supervision in the process of coiled material waterproof construction.
(1) Check whether the waterproof material meets the requirements and whether the cold priming oil meets the construction specifications. After the acceptance, the concealed engineering acceptance visa shall be handled.
(2) The details of special parts such as the waterproof layer of coiled material and its deformation joints, embedded pipe fittings and additional layers, such as the angle of yin and yang and the turning point, etc. Must comply with the design requirements and construction specifications, and handle the concealed engineering acceptance visa after acceptance.
(3) The paving method, lap joint and convergent of coiled material waterproof layer must conform to the construction specifications. Make sure that the bond is firm and tight, the joint is sealed, and there are no defects such as damage and hollowing. In addition, the paving thickness must be guaranteed. The waterproof layer and protective layer of coiled material are firmly bonded, closely combined and uniform in viscosity.
(4) After the coiled material waterproof layer is qualified, the concealed engineering acceptance visa shall be handled.
3) When the underground waterproof project is completed and accepted, the contractor shall provide the following information.
(1) records of positioning and setting-out measurement and acceptance visa of underground waterproof engineering;
(2) Raw material ex-factory quality certificate, test report, inspection record and notice of mixing ratio;
(3) Records of handling major technical problems in construction and records of engineering changes.
(4) concealed engineering acceptance record and subentry engineering quality inspection evaluation form.
5.2 Turbine Installation Project
5.2. 1 Turbine Generator Body Installation Project
1.) Handover, installation and acceptance of turbo-generator foundation building;
2). The low-pressure cylinder is connected with the condenser (A.b);
3) The generator passes through the rotor.
4.) Turbine cylinder buckle;
5). Adjustment of jacking oil pressure
6.) Secondary grouting for the bedplate of condensate pump (A/B);
7). Secondary grouting for the bottom plate of circulating water pump (A/B)
8.) Cylinder locking of small machines;
9) Hydrostatic test of main steam pipeline;
10.) Hydrostatic test of high-pressure water supply pipeline;
5.2.2 Start and debug the whole set of steam turbines.
1). Sealing test of valves and dampers;
2) overspeed test;
3) Vacuum leak test;
4.) Load rejection test.
5). Load test of bridge crane;
6.) Start the condensate pump (A/B);
7). Start the circulating water pump (A/B)
8). Small machine startup
9). Low voltage bypass tone test
10). High voltage bypass tone test
5.3 Site next to electrical installation
5.3. 1 AC and DC withstand voltage of generator; See table 2.161.7-2002 for inspection contents.
5.3.2 See DL/T5 16 1.3-2002 table 1.0.3- 1 for the inspection contents of main transformer body.
5.3.3 See DL/T5 16 1.3-2002 Table 1.0.3-2 for the inspection contents of core-pulling inspection of important motors.
5.3.4 See Table 2.161.7-2002 for the contents of battery charge and discharge inspection.
5.3.5 See Table 3.0.3 of DL/T5 16 1.9-2002 for the back pressure check of main transformer.
6Kv auxiliary power reception
5.3.7 0.38 kV auxiliary power reception
Debugging of diesel generator
6KV auxiliary power supply switching
5.3. 10 Factory-wide grounding resistance test
5.3. 1 1 Three-phase short circuit test of generator stator
5.4 beside the boiler professional construction installation site
5.4. 1 Installation of boiler body:
1) Steel frame foundation inspection and retest;
2) check the size of the large plate beam in place;
3) Trial operation of rotary air preheater;
4) Secondary ball passing test after superheater serpentine tube bundle combination;
5) The reheater tube row passes the ball for the second time;
6) Secondary ball passing test of economizer tube bundle;
7) Boiler overall hydrostatic test;
5.4.2 Dust removal device of boiler unit:
1) Re-survey of foundation handover of electrostatic precipitator steel structure;
2. Electrostatic precipitation vibration and transmission device debugging;
5.4.3 Installation of boiler auxiliary equipment:
1) Installation and trial operation of bearing parts of coal mill;
2) Commissioning of each fan;
3) Trial operation of coal feeder division;
4) Trial operation of air compressor division;
5.4.4 Thermal insulation and anticorrosion of thermal equipment and pipelines in the whole plant:
1) Laying of main insulation layer of HP and IP cylinders;
2) Anti-corrosion touch-up paint for the inner wall of main circulating water.
5.4.5 Installation of ash removal system:
1) air compressor division test run;
2) Double-shaft mixer division commissioning;
3) The trial operation of the slag scraper is carried out by zones;
5.4.6 Installation of lifting equipment in the whole plant:
1) load test of coal mill rail crane;
2) Load test of top maintenance lifting equipment;
3) Load test of lifting equipment in blower area;
4) Start the load test of lifting equipment in boiler room;
5) Load test of induced draft fan lifting equipment;
6) Load test of electrostatic precipitator lifting equipment;
7) Load test of electric double-beam crane in dumper room;
8) Load test of electric hoist in dumper room;
9) Load test of electric single-beam crane in coal crusher room;
10) Load test of electric single-beam crane in T8 transfer station;
Load test of electric single beam crane in T9 transfer station;
12)T 10 load test of electric single-beam crane in transfer station;
13)T 12AB belt electric single-beam crane load test;
14)T 12CD belt electric single-beam crane load test;
15) Load test of electric single-beam crane in coal pusher yard;
16) load test of lifting equipment of electric feed water pump set;
17) load test of lifting equipment for electric and steam feed pumps;
18) closed cycle heat exchanger lifting equipment load test;
19) load test of lifting equipment for open and closed circulating cold exchangers;
20) Load test of lifting equipment in deaerator room;
2 1) load test of bypass valve maintenance lifting equipment;
22) Load test of heavy equipment in hydrogen storage station;
5.4.7 Installation of boiler fuel equipment and pipelines:
1) Trial operation of Screw Oil Pump Division;
2) Division debugging of centrifugal oil supply pump;
3) Commissioning of Sewage Pump Division;
5.4.8 Installation of coal conveying equipment:
1) trial operation of vibrating coal feeder division;
2) Trial operation of rolling screen coal machine division;
3) Trial operation of bucket wheel stacker-reclaimer in different zones;
4) Commissioning of coal belt scale and calibration device;
5) Commissioning of feed coal belt scale;
6) Trial operation of belt coal conveying division;
7) Trial operation of iron remover in transfer station;
8) Installation of iron removal device in coal crusher room;
9) Trial operation of coal conveying hydraulic cleaning system;
10) trial operation of coal yard spray system; Trial operation of wastewater equipment;
5.4.9 Welding work: The first batch of welded joints are on standby.
1) Welding process qualification review: Before construction, the professional supervision engineer first reviews whether the welding process qualification of the construction unit covers the contract scope of the construction unit; Whether the content of welding operation instruction is consistent with the content of welding procedure qualification.
3) Check whether the welder's welder certificate is valid and whether the inspection content is consistent with the welding content; Whether the technicians have disclosed the contents of the work instruction;
4) Check whether the welding machine and measuring instrument meet the requirements;
5) Check whether the welding material certificate is complete, and check the spectral analysis report of alloy welding material and parent material;
6) Check whether the joint assembly quality meets the requirements;
7) Whether the fixing method of thermocouple meets the requirements and the requirements of heat treatment process card;
8) Check whether the welding process parameters meet the requirements of the work instruction and whether the interlayer temperature meets the requirements;
9) Whether the inspection results of welded joints near the site meet the requirements.
5.4. 10 Start boiler installation:
1) boiler water pressure test;
2) Fan division commissioning;
3) Commissioning of feed water pump unit;
6.4. 1 1 Start the whole group debugging.
1) security check;
2) Expansion inspection.
5.5 Thermal Control Construction Installation Site
5.5. 1 DCS system receives electricity;
5.5.2 RB test;