CN108488543A - A kind of distribution gas electricity installation method - Google Patents
A kind of distribution gas electricity installation method Download PDFInfo
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- CN108488543A CN108488543A CN201810301886.1A CN201810301886A CN108488543A CN 108488543 A CN108488543 A CN 108488543A CN 201810301886 A CN201810301886 A CN 201810301886A CN 108488543 A CN108488543 A CN 108488543A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of distributed gas electricity installation methods, include the following steps：Step 1, equipment component installation；Step 2, Pipe installing；Step 3, electric specialty construction；Step 4, thermal control professional construction；Step 5, the installation of combustion engine equipment；Step 6, waste heat boiler installation；A. basis is checked and accepted and crosses：Subject to size by the foundation drawing of designing institute's offer; and basis is carried out an acceptance inspection and crossed with reference to apparatus body figure, when basis is transferred, foundation construction unit should provide complete completion information; the longitudinal and transverse center line in basis, absolute altitude mark are clear; process handover record should be handled when the handing-over of basis, to visual examination, this method; be conducive to through pipeline corrosion protection and adiabatic heat-insulation measure; pipeline is protected, detection hydraulic pressure data is also helped, improves the safety used.
Description
Technical field
The present invention relates to distributed gas electricity installation method technical field, specially a kind of distributed gas electricity installation
Method.
Background technology
Distributed power generation peomotes the sustainable development of the energy, improves environment and improve the competitiveness of green energy resource,
The advantage of distributed power generation is fully develop and use the energy existing for various available dispersions, including locally can conveniently obtain
The fossil class A fuel A and regenerative resource taken, and the utilization ratio of the energy is improved, distributed gas electricity is exactly one such.
But on general distributed gas electricity installation method, all it is not provided with the step of pipeline corrosion protection and adiabatic heat-insulation
Suddenly, while to boiler also without carrying out the water pressure test, even if having it is also incomplete, for defect, so we design a kind of point
Cloth gas electricity installation method is necessary.
Invention content
The purpose of the present invention is to provide a kind of distributed gas electricity installation methods, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the present invention provides the following technical solutions：
A kind of distribution gas electricity installation method, includes the following steps：Step 1, equipment component installation；Step 2, pipeline peace
Dress；Step 3, electric specialty construction；Step 4, thermal control professional construction；Step 5, the installation of combustion engine equipment；Step 6, waste heat pot
Stove is installed；
Wherein in above-mentioned step one, the bases a. are checked and accepted and scribing line：Subject to size by the foundation drawing of designing institute's offer, and join
Basis is carried out an acceptance inspection and crossed according to apparatus body figure, when basis is transferred, foundation construction unit should provide complete completion information, base
The longitudinal and transverse center line of plinth, absolute altitude mark are clear, and basis should handle process handover record when joining, and to visual examination, see if there is bee
Whether the defects of nest, pitted skin, crackle, preformed hole are cleaned out, and whether appearance and size is correct, basic measurement and unwrapping wire optics
Theodolite carries out, and should meet unit random file and construction drawing requirement, repetition measurement center line and absolute altitude, reply machinery before equipment installation
The tolerance of Equipment Foundations positions and dimensions is confirmed and is checked；
B. open box to check and examination：Equipment is unpacked, and should be had in owner, supervisor, manufacturer, unit in charge of construction four directions
Pass personnel participate in lower progress, and the scope of examination includes title, model, specification, packaging case number (CN), case number and the amount of parts of machine,
After equipment open box to check, it should classify tabulation to spare part and board component, keep properly, make a record when engineering is handed over and handle together
Formality is transferred, nozzle should be closed after equipment open box to check is complete；
C. equipment is in place：Stationary equipment and part skinny device need to only be put corresponding position, this part by design position
Finished product protection work is carried out after equipment is in place, mechanical equipment and larger stationary equipment are then needed using solid after foundation bolt grouting
It is fixed；
D. equipment hoisting and equipment shakedown：Construction unit, designing unit, supervisor, equipment factory when equipment shakedown
Family shows up, and can carry out, cleaning equipment bottom personnel, carries out the manipulation operation of equipment；
Wherein in above-mentioned step two, a. pipe prefabrications：Whether tubing specification, material used in verifying meet design requirement, right
The excessive pipeline that bends carries out straightening by the method that cool tone or heat are adjusted, then uses machine cuts or flame cutting method pair
Pipe feeding is cut, then line up carries out groove processing；
B. nozzle group pair：Pipe, pipe fitting group after blanking and retaining wall on slope must check that pipe welding port group is corresponded to before
Accomplish whether the identical tube wall of wall thickness concordant, group to good pipe, pipe fitting can first tack welding, to be pre-stretched or precompressed
Pipe welding port, tool used in clock synchronization of organizing should wait for that entire weld bond welding and heat treatment finish and through that can tear open after the assay was approved
It removes；
C. nozzle welds：Pipeline welding chooses welding procedure after pipeline welds according to pipe material to fly weld bond slag crust
Object is splashed to clean out, surface should be complete, must not highly be less than base material surface, and with base material rounding off, weld width should exceed
Bevelled edge 2mm~3mm；
D. suspension and support makes and installs：Pipe support makes is processed making, pipeline prestretching according to drawing requirement（Pressure）Work progress
In, fixing bracket installation all securely should stablize the prestretching of pipeline（Pressure）Value should meet design length and medium temperature required value,
Cold drawing（Pressure）Value should be calculate swell value △ 1/2, and counterpart position is located at fixing bracket 500-1000mm；
E. the installation of pipe fitting：Flange installation, valve installation and Building Model of Special Fittings installation；
F. pipeline welding and weld inspection：Welding quality inspection carries out welding and inspection, pipe in strict accordance with welding procedure guiding book
Road weldquality carries out radiographic examination (complete) after appearance passed examination, after pipeline-weld quality carries out radiography, examines not
Qualified weld seam must be reprocessed, and must be detected a flaw again after reprocessing, and conscientiously carry out every record, and it is strong that pipeline is carried out after inspection
Degree, leak test and system purge and cleaning, then carry out pipeline corrosion protection and adiabatic heat-insulation；
Wherein in above-mentioned step three, the installation of a. power distribution cabinets：The displacement of disk cabinet can use crane, flat car, rolling bar and autocracy
Transport vehicle cooperation carries out, and is successively transported to according to equipment installation position sequence within doors and in place, and equipment carry direction will be with installation
Direction is consistent, on the basis of being emitted on distribution board successively according to design when distribution board cabinet is installed, in bottom four corners after levelling capturing
After spot welding is fixed, bolt between disk is tightened, protection screen pads rubber pad when installing on basic section steel, is then used on the inside of screen cabinet quadrangle
Bolt is fixed, and the earthy Special grounding wire of disk is attached；
B. switchyard and enclosed busbar installation：According to execution conditions, operational procedure and method, by equipment conveying, unpack,
The work such as inspection, lifting, which intersect, to be carried out；
C. cable laying：Cable is laid by the way of cable testing bridge and cable bearer, is carried out professional joint examination to construction drawing, is fallen
Real equipment proofreads the position of cable protection pipe, caliber, cable tube quantity, coordinates civil construction in time, it is ensured that protection pipe laying one
Secondary actively to coordinate in place with designing institute, electric specialty and thermal technology's professional coordination, unified standard is harmonious, according to practical progress
Site layout project installs cable testing bridge, and power electric cable end uses pyrocondensation technique, control end to use casing technique；
D. grounding-for-lightning device installation and electric adjustment：Working earthing and protective grounding, ground resistance are not more than 4 ohm, and DCS connects
System earth resistance in ground is not more than 4 ohm, and the Resistance of Grounding Grids of independent lightning rod is not more than 10 ohm, is grounded by nearby
Ground connection major network draw, be reliably electrically connected with equipment with flexible circuit conductor, then carry out the debugging of electrical equipment；
Wherein in above-mentioned step four, a. cable tray installations：It constructs according to construction drawing, cable testing bridge installation
Before, construction personnel will screen the major-minor part such as crane span structure, trailing arm, connection sheet, fixation clip, bolt comprehensively, it is ensured that material used
Expect unified and standard, to correcting for deformation, to clear up and discharge to undesirable, to realize the high standard of technique, cable testing bridge
Installation, column spacing be 1.5m, crane span structure interlamellar spacing be 300mm, in space, smaller position interfloor distance cannot be less than
250mm, cable testing bridge installation, except take root place and the part right angle setting crane span structure of column are without fixed form, with outside electric welding connection,
Remaining connection it is all be bolted, welding position in the future brush with the homochromy antirust paint of column；
B.DCS systems are installed and debugging：The installation of DCS system cabinet and measuring cell is executed by specification and manufacturer's regulation, cooperation
Manufacturer and related commissioning staff debug DCS system, then carry out thermal technology's disk, platform, cabinet installation；
C. cable laying and instrumentation pipeline laying：What is branched out from main channel leads to subchannel on the spot, according to number of cables 4
Root or more will use closing wire casing laying, 4 it is below will use cable protection duct occlusion lay, manufacturing cable head it
Before, construction personnel will be checked cable (including electrical cable) comprehensively by drawing, and according to number of cables and orientation, comprehensive planning disk
Cable arrangements mode in cabinet draws the cable of upper disk cabinet from cable testing bridge, and with wiring, every binds by shelves, cable core
Binding is bound using nylon band, and surface binding distance is consistent, and color and luster is consistent, while before pipeline laying, to be carried out stringent interior
Portion is cleaned, and groove is first beaten, and is then used the forward and reverse scouring of band twice, after compressed air purging, is sealed, waited for friction tape
With concentrating the pipeline (5 and 5 or more) of laying, fixed using pipeline crane span structure, the pipeline sporadicly laid, using fragmentary holder
It is fixed, no matter crane span structure or fragmentary holder use electric drill trepanning without exception；
D. equipment protection：After Thermal Equipment reaches scene, device class is put in storage, has the equipment of particular/special requirement such as to storage environment
Precision instrument etc. is placed on as required in the satisfactory storehouse of temperature, humidity, after Thermal Equipment installs, properly protects cover to keep away
Exempt from into water, the measures such as collide with；
Wherein in above-mentioned step five, the bases a. are checked and accepted, inspection and equipment are unpacked and checked and accepted：With device-dependent foundation of civil work
Detection checks Equipment Foundations absolute altitude, the horizontal requirement for whether meeting design ± 1.5mm, whether checks concrete load-carrying surface absolute altitude
Correctly, whether detection internal combustion box body basis, generator basis meet design requirement；
B. equipment is installed：Internal combustion engine module is installed, with internal combustion engine（Engine）On the basis of module, generator module is adjusted, is reached
Centering requirement jacks up generator frame with hydraulic jack, installs elastic shock attenuation band, and mounting means is identical as engine, elasticity
Lanyard answers uniform force, adjusts generator base absolute altitude by the thickness of the adjust pad on each support plinth, makes internal combustion
In same level, bolt is connected with torque wrench fastening seat with generator base for machine, shaft coupling wheel rim is mounted on interior
On combustion engine shaft part, bolt is fastened with torque wrench, torque 375Nm, generator shaft must rotate as possible, by coupling wheel
Circle smoothly import generator aluminum spring base, shafting look on the basis of internal combustion engine, pass through the opening and circumference of regulator generator
Numerical value；
Wherein in above-mentioned step six, a boiler erections：Boiler steel frame installation is carried out, steel construction centering is with the column of frame
Benchmark is unfolded to both sides, is welded by drawing, then carries out the lifting of ontology platform staircase and the lifting of boiler rain-proof shelter；
B. economizer, evaporator module lifting：After steelframe installs acceptance(check), center line is found out on steel plate at the top of the steelframe, it will
Evaporator base centerline overlaps in place with abacus center line, after qualification in place, by evaporator pedestal and abacus according to figure
Paper requires firm welding, can carry out the lifting of economizer module, and two heel post of economizer module overlaps pair with evaporator column
It connects；
C. inlet flue duct, chimney and the installation of superheater module：After evaporator installation qualification, import smoke box and 90 ° of elbows are carried out
Flue is installed, and inlet flue duct fragment is shown up, after support post is installed in place according to drawing position, according to drawing size and sequence
Welding first carries out ground group to rear after chimney to scene, then carries out integral hoisting using 50t truck cranes, waits for inlet flue duct
After installation is complete, superheater module hoisting is carried out, superheater module installation direction 1#, 2# boiler should be central symmetry, module bottom
Portion's girder steel is welded to connect with support post, and welding manner is full weld；
D. drum, subsidiary engine and the installation of auxiliary device pipeline：Drum holder is installed, then to drum inspection scribing line and drum centering, vapour
After packet centering, drum all around properly should be reinforced and be limited, after pipeline overall planning, suspension and support is closed
The arrangement of reason, then valve is installed；
E. the water pressure test：After waste heat boiler installs, Hydrostatic test is done using examination aqueous, test pressure 3.11MPa,
Environment temperature is not less than 5 DEG C, and water temperature is not less than 21 DEG C, and water temperature is no more than 70 DEG C, when the water pressure test, hydraulic pressure should slowly on
It rises, the rate of rise is no more than 0.3MPa/min should suspend boosting when hydraulic pressure rises to the 10% of test pressure, check for leaking
Water and abnormal phenomenon, then boost to operating pressure 2.49MPa again, and pause boosting checks for leak and abnormal phenomenon, finally
Test pressure 3.11MPa is boosted to, and keeps 20min under test pressure, then is down to operating pressure and is checked, during inspection
Pressure should remain unchanged；
F. waste heat boiler boils stove and seal tightness test：Dosing（Dosing mouth is the relief valve connection on drum）, start combustion engine to 30%
Load or so adjusts air bleeding valve steam evacuation on drum, maintains drum pressure to 0.3 ~ 0.5MPa, temperature is at 120 ~ 130 DEG C
Under the conditions of boil for 24 hours, then open boiler blow down valve and carry out blowdown, until water quality is met the requirements, after boiling stove, it is ensured that boiler drum and
Without any foreign matter in end socket, layer protecting film is formd on the metal surface, and boiling furnace temperature should control at 120 ~ 130 DEG C, exhaust
Measure 10-15%, and realized by controlling generator load or controlling the aperture of flue damper, then to weld, manhole, hand hole,
The sealing in boiler portion, water and steam valve is checked.
According to above-mentioned technical proposal, the foundation bolt grouting method mentioned in the step 1 includes parallels arrangement, taper liner
Iron pairing uses, equipment is levelling, parallels group placement, foundation bolt is installed and grouting.
The pipeline corrosion protection mentioned in the step 2 according to above-mentioned technical proposal and adiabatic heat-insulation pass through the anti-corrosion of pipeline
Engineering construction should carry out after the strength test of pipeline, air-tight test qualification, pipeline before anti-corrosion, should remove surface iron rust,
The dirts such as burr, grease, require according to drawing leader and specification provides, derust to all pipelines, are applied after derusting
Paint, then heat insulation layer is socketed on outer layer shell by adhesive tape joint seal.
According to above-mentioned technical proposal, the examination aqueous in the step 6 is demineralized water.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention：
1. by pipeline corrosion protection and adiabatic heat-insulation, constructed by the antiseptic project of pipeline, strength test that should be in pipeline, air-tightness
It is carried out after pass the test, pipeline should remove the dirts such as surface iron rust, burr, grease before anti-corrosion, be required according to drawing leader
It is provided with specification, derusts to all pipelines, paint after derusting, then be socketed in heat insulation layer outside by adhesive tape joint seal
On layer shell, be conducive to protect pipeline gold；
After 2. waste heat boiler installs, Hydrostatic test is done using examination aqueous, when the water pressure test, hydraulic pressure should slowly on
It rises, when hydraulic pressure rises to the 10% of test pressure, boosting should be suspended, leak and abnormal phenomenon is checked for, then boost to again
Operating pressure 2.49MPa, pause boosting, checks for leak and abnormal phenomenon, finally boosts to test pressure 3.11MPa, and
20min is kept under test pressure, then is down to operating pressure and is checked, pressure should remain unchanged during inspection, be conducive to examine
Hydraulic pressure data are surveyed, the safety used is improved.
Description of the drawings
Fig. 1 is the distributed gas electricity installation method flow chart of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of distribution gas electricity installation method includes the following steps：Step 1, equipment component installation；
Step 2, Pipe installing；Step 3, electric specialty construction；Step 4, thermal control professional construction；Step 5, the installation of combustion engine equipment；
Step 6, waste heat boiler installation；
Wherein in above-mentioned step one, the bases a. are checked and accepted and scribing line：Subject to size by the foundation drawing of designing institute's offer, and join
Basis is carried out an acceptance inspection and crossed according to apparatus body figure, when basis is transferred, foundation construction unit should provide complete completion information, base
The longitudinal and transverse center line of plinth, absolute altitude mark are clear, and basis should handle process handover record when joining, and to visual examination, see if there is bee
Whether the defects of nest, pitted skin, crackle, preformed hole are cleaned out, and whether appearance and size is correct, basic measurement and unwrapping wire optics
Theodolite carries out, and should meet unit random file and construction drawing requirement, repetition measurement center line and absolute altitude, reply machinery before equipment installation
The tolerance of Equipment Foundations positions and dimensions is confirmed and is checked；
B. open box to check and examination：Equipment is unpacked, and should be had in owner, supervisor, manufacturer, unit in charge of construction four directions
Pass personnel participate in lower progress, and the scope of examination includes title, model, specification, packaging case number (CN), case number and the amount of parts of machine,
After equipment open box to check, it should classify tabulation to spare part and board component, keep properly, make a record when engineering is handed over and handle together
Formality is transferred, nozzle should be closed after equipment open box to check is complete；
C. equipment is in place：Stationary equipment and part skinny device need to only be put corresponding position, this part by design position
Finished product protection work is carried out after equipment is in place, mechanical equipment and larger stationary equipment are then needed using solid after foundation bolt grouting
It is fixed；
D. equipment hoisting and equipment shakedown：Construction unit, designing unit, supervisor, equipment factory when equipment shakedown
Family shows up, and can carry out, cleaning equipment bottom personnel, carries out the manipulation operation of equipment；
Wherein in above-mentioned step two, a. pipe prefabrications：Whether tubing specification, material used in verifying meet design requirement, right
The excessive pipeline that bends carries out straightening by the method that cool tone or heat are adjusted, then uses machine cuts or flame cutting method pair
Pipe feeding is cut, then line up carries out groove processing；
B. nozzle group pair：Pipe, pipe fitting group after blanking and retaining wall on slope must check that pipe welding port group is corresponded to before
Accomplish whether the identical tube wall of wall thickness concordant, group to good pipe, pipe fitting can first tack welding, to be pre-stretched or precompressed
Pipe welding port, tool used in clock synchronization of organizing should wait for that entire weld bond welding and heat treatment finish and through that can tear open after the assay was approved
It removes；
C. nozzle welds：Pipeline welding chooses welding procedure after pipeline welds according to pipe material to fly weld bond slag crust
Object is splashed to clean out, surface should be complete, must not highly be less than base material surface, and with base material rounding off, weld width should exceed
Bevelled edge 2mm~3mm；
D. suspension and support makes and installs：Pipe support makes is processed making, pipeline prestretching according to drawing requirement（Pressure）Work progress
In, fixing bracket installation all securely should stablize the prestretching of pipeline（Pressure）Value should meet design length and medium temperature required value,
Cold drawing（Pressure）Value should be calculate swell value △ 1/2, and counterpart position is located at fixing bracket 500-1000mm；
E. the installation of pipe fitting：Flange installation, valve installation and Building Model of Special Fittings installation；
F. pipeline welding and weld inspection：Welding quality inspection carries out welding and inspection, pipe in strict accordance with welding procedure guiding book
Road weldquality carries out radiographic examination (complete) after appearance passed examination, after pipeline-weld quality carries out radiography, examines not
Qualified weld seam must be reprocessed, and must be detected a flaw again after reprocessing, and conscientiously carry out every record, and it is strong that pipeline is carried out after inspection
Degree, leak test and system purge and cleaning, then carry out pipeline corrosion protection and adiabatic heat-insulation；
Wherein in above-mentioned step three, the installation of a. power distribution cabinets：The displacement of disk cabinet can use crane, flat car, rolling bar and autocracy
Transport vehicle cooperation carries out, and is successively transported to according to equipment installation position sequence within doors and in place, and equipment carry direction will be with installation
Direction is consistent, on the basis of being emitted on distribution board successively according to design when distribution board cabinet is installed, in bottom four corners after levelling capturing
After spot welding is fixed, bolt between disk is tightened, protection screen pads rubber pad when installing on basic section steel, is then used on the inside of screen cabinet quadrangle
Bolt is fixed, and the earthy Special grounding wire of disk is attached；
B. switchyard and enclosed busbar installation：According to execution conditions, operational procedure and method, by equipment conveying, unpack,
The work such as inspection, lifting, which intersect, to be carried out；
C. cable laying：Cable is laid by the way of cable testing bridge and cable bearer, is carried out professional joint examination to construction drawing, is fallen
Real equipment proofreads the position of cable protection pipe, caliber, cable tube quantity, coordinates civil construction in time, it is ensured that protection pipe laying one
Secondary actively to coordinate in place with designing institute, electric specialty and thermal technology's professional coordination, unified standard is harmonious, according to practical progress
Site layout project installs cable testing bridge, and power electric cable end uses pyrocondensation technique, control end to use casing technique；
D. grounding-for-lightning device installation and electric adjustment：Working earthing and protective grounding, ground resistance are not more than 4 ohm, and DCS connects
System earth resistance in ground is not more than 4 ohm, and the Resistance of Grounding Grids of independent lightning rod is not more than 10 ohm, is grounded by nearby
Ground connection major network draw, be reliably electrically connected with equipment with flexible circuit conductor, then carry out the debugging of electrical equipment；
Wherein in above-mentioned step four, a. cable tray installations：It constructs according to construction drawing, cable testing bridge installation
Before, construction personnel will screen the major-minor part such as crane span structure, trailing arm, connection sheet, fixation clip, bolt comprehensively, it is ensured that material used
Expect unified and standard, to correcting for deformation, to clear up and discharge to undesirable, to realize the high standard of technique, cable testing bridge
Installation, column spacing be 1.5m, crane span structure interlamellar spacing be 300mm, in space, smaller position interfloor distance cannot be less than
250mm, cable testing bridge installation, except take root place and the part right angle setting crane span structure of column are without fixed form, with outside electric welding connection,
Remaining connection it is all be bolted, welding position in the future brush with the homochromy antirust paint of column；
B.DCS systems are installed and debugging：The installation of DCS system cabinet and measuring cell is executed by specification and manufacturer's regulation, cooperation
Manufacturer and related commissioning staff debug DCS system, then carry out thermal technology's disk, platform, cabinet installation；
C. cable laying and instrumentation pipeline laying：What is branched out from main channel leads to subchannel on the spot, according to number of cables 4
Root or more will use closing wire casing laying, 4 it is below will use cable protection duct occlusion lay, manufacturing cable head it
Before, construction personnel will be checked cable (including electrical cable) comprehensively by drawing, and according to number of cables and orientation, comprehensive planning disk
Cable arrangements mode in cabinet draws the cable of upper disk cabinet from cable testing bridge, and with wiring, every binds by shelves, cable core
Binding is bound using nylon band, and surface binding distance is consistent, and color and luster is consistent, while before pipeline laying, to be carried out stringent interior
Portion is cleaned, and groove is first beaten, and is then used the forward and reverse scouring of band twice, after compressed air purging, is sealed, waited for friction tape
With concentrating the pipeline (5 and 5 or more) of laying, fixed using pipeline crane span structure, the pipeline sporadicly laid, using fragmentary holder
It is fixed, no matter crane span structure or fragmentary holder use electric drill trepanning without exception；
D. equipment protection：After Thermal Equipment reaches scene, device class is put in storage, has the equipment of particular/special requirement such as to storage environment
Precision instrument etc. is placed on as required in the satisfactory storehouse of temperature, humidity, after Thermal Equipment installs, properly protects cover to keep away
Exempt from into water, the measures such as collide with；
Wherein in above-mentioned step five, the bases a. are checked and accepted, inspection and equipment are unpacked and checked and accepted：With device-dependent foundation of civil work
Detection checks Equipment Foundations absolute altitude, the horizontal requirement for whether meeting design ± 1.5mm, whether checks concrete load-carrying surface absolute altitude
Correctly, whether detection internal combustion box body basis, generator basis meet design requirement；
B. equipment is installed：Internal combustion engine module is installed, with internal combustion engine（Engine）On the basis of module, generator module is adjusted, is reached
Centering requirement jacks up generator frame with hydraulic jack, installs elastic shock attenuation band, and mounting means is identical as engine, elasticity
Lanyard answers uniform force, adjusts generator base absolute altitude by the thickness of the adjust pad on each support plinth, makes internal combustion
In same level, bolt is connected with torque wrench fastening seat with generator base for machine, shaft coupling wheel rim is mounted on interior
On combustion engine shaft part, bolt is fastened with torque wrench, torque 375Nm, generator shaft must rotate as possible, by coupling wheel
Circle smoothly import generator aluminum spring base, shafting look on the basis of internal combustion engine, pass through the opening and circumference of regulator generator
Numerical value；
Wherein in above-mentioned step six, a boiler erections：Boiler steel frame installation is carried out, steel construction centering is with the column of frame
Benchmark is unfolded to both sides, is welded by drawing, then carries out the lifting of ontology platform staircase and the lifting of boiler rain-proof shelter；
B. economizer, evaporator module lifting：After steelframe installs acceptance(check), center line is found out on steel plate at the top of the steelframe, it will
Evaporator base centerline overlaps in place with abacus center line, after qualification in place, by evaporator pedestal and abacus according to figure
Paper requires firm welding, can carry out the lifting of economizer module, and two heel post of economizer module overlaps pair with evaporator column
It connects；
C. inlet flue duct, chimney and the installation of superheater module：After evaporator installation qualification, import smoke box and 90 ° of elbows are carried out
Flue is installed, and inlet flue duct fragment is shown up, after support post is installed in place according to drawing position, according to drawing size and sequence
Welding first carries out ground group to rear after chimney to scene, then carries out integral hoisting using 50t truck cranes, waits for inlet flue duct
After installation is complete, superheater module hoisting is carried out, superheater module installation direction 1#, 2# boiler should be central symmetry, module bottom
Portion's girder steel is welded to connect with support post, and welding manner is full weld；
D. drum, subsidiary engine and the installation of auxiliary device pipeline：Drum holder is installed, then to drum inspection scribing line and drum centering, vapour
After packet centering, drum all around properly should be reinforced and be limited, after pipeline overall planning, suspension and support is closed
The arrangement of reason, then valve is installed；
E. the water pressure test：After waste heat boiler installs, Hydrostatic test is done using examination aqueous, test pressure 3.11MPa,
Environment temperature is not less than 5 DEG C, and water temperature is not less than 21 DEG C, and water temperature is no more than 70 DEG C, when the water pressure test, hydraulic pressure should slowly on
It rises, the rate of rise is no more than 0.3MPa/min should suspend boosting when hydraulic pressure rises to the 10% of test pressure, check for leaking
Water and abnormal phenomenon, then boost to operating pressure 2.49MPa again, and pause boosting checks for leak and abnormal phenomenon, finally
Test pressure 3.11MPa is boosted to, and keeps 20min under test pressure, then is down to operating pressure and is checked, during inspection
Pressure should remain unchanged；
F. waste heat boiler boils stove and seal tightness test：Dosing（Dosing mouth is the relief valve connection on drum）, start combustion engine to 30%
Load or so adjusts air bleeding valve steam evacuation on drum, maintains drum pressure to 0.3 ~ 0.5MPa, temperature is at 120 ~ 130 DEG C
Under the conditions of boil for 24 hours, then open boiler blow down valve and carry out blowdown, until water quality is met the requirements, after boiling stove, it is ensured that boiler drum and
Without any foreign matter in end socket, layer protecting film is formd on the metal surface, and boiling furnace temperature should control at 120 ~ 130 DEG C, exhaust
Measure 10-15%, and realized by controlling generator load or controlling the aperture of flue damper, then to weld, manhole, hand hole,
The sealing in boiler portion, water and steam valve is checked.
According to above-mentioned technical proposal, the foundation bolt grouting method mentioned in step 1 includes that parallels is arranged, inclined sizing block is matched
To using, equipment is levelling, placement of parallels group, foundation bolt installation and grouting.
The pipeline corrosion protection mentioned in step 2 according to above-mentioned technical proposal and adiabatic heat-insulation pass through the antiseptic project of pipeline
Construction, should carry out, pipeline should remove surface iron rust, hair before anti-corrosion after the strength test of pipeline, air-tight test qualification
The dirts such as perverse, grease, require according to drawing leader and specification provides, derust to all pipelines, paint after derusting,
Heat insulation layer is socketed on outer layer shell by adhesive tape joint seal again.
According to above-mentioned technical proposal, the examination aqueous in step 6 is demineralized water.
Based on above-mentioned, it is an advantage of the current invention that the present invention passes through the anti-corrosion of pipeline by pipeline corrosion protection and adiabatic heat-insulation
Engineering construction should carry out after the strength test of pipeline, air-tight test qualification, pipeline before anti-corrosion, should remove surface iron rust,
The dirts such as burr, grease, require according to drawing leader and specification provides, derust to all pipelines, are applied after derusting
Paint, then heat insulation layer is socketed on outer layer shell by adhesive tape joint seal, be conducive to protect pipeline gold；Waste heat boiler installs
Bi Hou does Hydrostatic test, test pressure 3.11MPa using examination aqueous, and environment temperature is not less than 5 DEG C, and water temperature is not less than
21 DEG C, and water temperature is no more than 70 DEG C, when the water pressure test, hydraulic pressure should rise slowly, and the rate of rise is no more than 0.3MPa/min, when
When hydraulic pressure rises to the 10% of test pressure, boosting should be suspended, leak and abnormal phenomenon is checked for, then boost to work again
Pressure 2.49MPa, pause boosting, checks for leak and abnormal phenomenon, finally boosts to test pressure 3.11MPa, and trying
It tests under pressure and keeps 20min, then be down to operating pressure and checked, pressure should remain unchanged during inspection, be conducive to detection water
Data are pressed, the safety used is improved.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of distribution gas electricity installation method, includes the following steps：Step 1, equipment component installation；Step 2, pipeline
Installation；Step 3, electric specialty construction；Step 4, thermal control professional construction；Step 5, the installation of combustion engine equipment；Step 6, waste heat
Boiler erection；It is characterized in that：
Wherein in above-mentioned step one, the bases a. are checked and accepted and scribing line：Subject to size by the foundation drawing of designing institute's offer, and join
Basis is carried out an acceptance inspection and crossed according to apparatus body figure, when basis is transferred, foundation construction unit should provide complete completion information, base
The longitudinal and transverse center line of plinth, absolute altitude mark are clear, and basis should handle process handover record when joining, and to visual examination, see if there is bee
Whether the defects of nest, pitted skin, crackle, preformed hole are cleaned out, and whether appearance and size is correct, basic measurement and unwrapping wire optics
Theodolite carries out, and should meet unit random file and construction drawing requirement, repetition measurement center line and absolute altitude, reply machinery before equipment installation
The tolerance of Equipment Foundations positions and dimensions is confirmed and is checked；
B. open box to check and examination：Equipment is unpacked, and should be had in owner, supervisor, manufacturer, unit in charge of construction four directions
Pass personnel participate in lower progress, and the scope of examination includes title, model, specification, packaging case number (CN), case number and the amount of parts of machine,
After equipment open box to check, it should classify tabulation to spare part and board component, keep properly, make a record when engineering is handed over and handle together
Formality is transferred, nozzle should be closed after equipment open box to check is complete；
C. equipment is in place：Stationary equipment and part skinny device need to only be put corresponding position, this part by design position
Finished product protection work is carried out after equipment is in place, mechanical equipment and larger stationary equipment are then needed using solid after foundation bolt grouting
It is fixed；
D. equipment hoisting and equipment shakedown：Construction unit, designing unit, supervisor, equipment factory when equipment shakedown
Family shows up, and can carry out, cleaning equipment bottom personnel, carries out the manipulation operation of equipment；
Wherein in above-mentioned step two, a. pipe prefabrications：Whether tubing specification, material used in verifying meet design requirement, right
The excessive pipeline that bends carries out straightening by the method that cool tone or heat are adjusted, then uses machine cuts or flame cutting method pair
Pipe feeding is cut, then line up carries out groove processing；
B. nozzle group pair：Pipe, pipe fitting group after blanking and retaining wall on slope must check that pipe welding port group is corresponded to before
Accomplish whether the identical tube wall of wall thickness concordant, group to good pipe, pipe fitting can first tack welding, to be pre-stretched or precompressed
Pipe welding port, tool used in clock synchronization of organizing should wait for that entire weld bond welding and heat treatment finish and through that can tear open after the assay was approved
It removes；
C. nozzle welds：Pipeline welding chooses welding procedure after pipeline welds according to pipe material to fly weld bond slag crust
Object is splashed to clean out, surface should be complete, must not highly be less than base material surface, and with base material rounding off, weld width should exceed
Bevelled edge 2mm~3mm；
D. suspension and support makes and installs：Pipe support makes is processed making according to drawing requirement, in pipeline prestretching work progress, Gu
Fixed rack installation should all securely, and design length and medium temperature required value should be met by stablizing the pre- pull-up values of pipeline, and cold drawing value is answered
It is calculate swell value △ 1/2, counterpart position is located at fixing bracket 500-1000mm；
E. the installation of pipe fitting：Flange installation, valve installation and Building Model of Special Fittings installation；
F. pipeline welding and weld inspection：Welding quality inspection carries out welding and inspection, pipe in strict accordance with welding procedure guiding book
Road weldquality carries out radiographic examination (complete) after appearance passed examination, after pipeline-weld quality carries out radiography, examines not
Qualified weld seam must be reprocessed, and must be detected a flaw again after reprocessing, and conscientiously carry out every record, and it is strong that pipeline is carried out after inspection
Degree, leak test and system purge and cleaning, then carry out pipeline corrosion protection and adiabatic heat-insulation；
Wherein in above-mentioned step three, the installation of a. power distribution cabinets：The displacement of disk cabinet can use crane, flat car, rolling bar and autocracy
Transport vehicle cooperation carries out, and is successively transported to according to equipment installation position sequence within doors and in place, and equipment carry direction will be with installation
Direction is consistent, on the basis of being emitted on distribution board successively according to design when distribution board cabinet is installed, in bottom four corners after levelling capturing
After spot welding is fixed, bolt between disk is tightened, protection screen pads rubber pad when installing on basic section steel, is then used on the inside of screen cabinet quadrangle
Bolt is fixed, and the earthy Special grounding wire of disk is attached；
B. switchyard and enclosed busbar installation：According to execution conditions, operational procedure and method, by equipment conveying, unpack,
The work such as inspection, lifting, which intersect, to be carried out；
C. cable laying：Cable is laid by the way of cable testing bridge and cable bearer, is carried out professional joint examination to construction drawing, is fallen
Real equipment proofreads the position of cable protection pipe, caliber, cable tube quantity, coordinates civil construction in time, actively match with designing institute
It closing, electric specialty and thermal technology's professional coordination, unified standard is harmonious, and cable testing bridge is installed according to the practical site layout project that carries out,
Power electric cable end uses pyrocondensation technique, control end to use casing technique；
D. grounding-for-lightning device installation and electric adjustment：Working earthing and protective grounding, ground resistance are not more than 4 ohm, and DCS connects
System earth resistance in ground is not more than 4 ohm, and the Resistance of Grounding Grids of independent lightning rod is not more than 10 ohm, is grounded by nearby
Ground connection major network draw, be reliably electrically connected with equipment with flexible circuit conductor, then carry out the debugging of electrical equipment；
Wherein in above-mentioned step four, a. cable tray installations：It constructs according to construction drawing, cable testing bridge installation
Before, construction personnel will screen the major-minor part such as crane span structure, trailing arm, connection sheet, fixation clip, bolt comprehensively, be wanted to deformation
Correction, will clear up and discharge to undesirable, the installation of cable testing bridge, and column spacing is 1.5m, and crane span structure interlamellar spacing is 300mm,
In space, smaller position interfloor distance cannot be less than 250mm, cable testing bridge installation, except the vertical peace in place and part of taking root of column
Crane span structure is filled without fixed form, with outside electric welding connection, connection is all is bolted for remaining, and brush is same with column in the future for welding position
The antirust paint of color；
B.DCS systems are installed and debugging：The installation of DCS system cabinet and measuring cell is executed by specification and manufacturer's regulation, cooperation
Manufacturer and related commissioning staff debug DCS system, then carry out thermal technology's disk, platform, cabinet installation；
C. cable laying and instrumentation pipeline laying：What is branched out from main channel leads to subchannel on the spot, according to number of cables 4
Root or more will use closing wire casing laying, 4 it is below will use cable protection duct occlusion lay, manufacturing cable head it
Before, construction personnel will be checked cable comprehensively by drawing, and according to number of cables and orientation, the cable arrangements in comprehensive planning disk cabinet
Mode draws the cable of upper disk cabinet from cable testing bridge, and with wiring, every binds by shelves, and the binding of cable core is pricked using nylon
Band binding, surface binding distance is consistent, and color and luster is consistent, while before pipeline laying, to carry out stringent internal washing, first beat slope
Mouthful, it then uses the forward and reverse scouring of band twice, after compressed air purging, is sealed with friction tape, for use, concentrate the pipe of laying
Road is fixed using pipeline crane span structure, and the pipeline sporadicly laid is fixed using fragmentary holder, no matter crane span structure or fragmentary holder are same
With electric drill trepanning；
D. equipment protection：After Thermal Equipment reaches scene, device class is put in storage, has the equipment of particular/special requirement such as to storage environment
Precision instrument etc. is placed on as required in the satisfactory storehouse of temperature, humidity, after Thermal Equipment installs, properly protects cover to keep away
Exempt from into water, the measures such as collide with；
Wherein in above-mentioned step five, the bases a. are checked and accepted, inspection and equipment are unpacked and checked and accepted：With device-dependent foundation of civil work
Detection checks Equipment Foundations absolute altitude, the horizontal requirement for whether meeting design ± 1.5mm, whether checks concrete load-carrying surface absolute altitude
Correctly, whether detection internal combustion box body basis, generator basis meet design requirement；
B. equipment is installed：Internal combustion engine module is installed, with internal combustion engine（Engine）On the basis of module, generator module is adjusted, is reached
Centering requirement jacks up generator frame with hydraulic jack, installs elastic shock attenuation band, and mounting means is identical as engine, elasticity
Lanyard answers uniform force, adjusts generator base absolute altitude by the thickness of the adjust pad on each support plinth, makes internal combustion
In same level, bolt is connected with torque wrench fastening seat with generator base for machine, shaft coupling wheel rim is mounted on interior
On combustion engine shaft part, bolt is fastened with torque wrench, torque 375Nm, generator shaft must rotate as possible, by coupling wheel
Circle smoothly import generator aluminum spring base, shafting look on the basis of internal combustion engine, pass through the opening and circumference of regulator generator
Numerical value；
Wherein in above-mentioned step six, a boiler erections：Boiler steel frame installation is carried out, steel construction centering is with the column of frame
Benchmark is unfolded to both sides, is welded by drawing, then carries out the lifting of ontology platform staircase and the lifting of boiler rain-proof shelter；
B. economizer, evaporator module lifting：After steelframe installs acceptance(check), center line is found out on steel plate at the top of the steelframe, it will
Evaporator base centerline overlaps in place with abacus center line, after qualification in place, by evaporator pedestal and abacus according to figure
Paper requires firm welding, can carry out the lifting of economizer module, and two heel post of economizer module overlaps pair with evaporator column
It connects；
C. inlet flue duct, chimney and the installation of superheater module：After evaporator installation qualification, import smoke box and 90 ° of elbows are carried out
Flue is installed, and inlet flue duct fragment is shown up, after support post is installed in place according to drawing position, according to drawing size and sequence
Welding first carries out ground group to rear after chimney to scene, then carries out integral hoisting using 50t truck cranes, waits for inlet flue duct
After installation is complete, superheater module hoisting is carried out, superheater module installation direction 1#, 2# boiler should be central symmetry, module bottom
Portion's girder steel is welded to connect with support post, and welding manner is full weld；
D. drum, subsidiary engine and the installation of auxiliary device pipeline：Drum holder is installed, then to drum inspection scribing line and drum centering, vapour
After packet centering, drum all around properly should be reinforced and be limited, after pipeline overall planning, suspension and support is closed
The arrangement of reason, then valve is installed；
E. the water pressure test：After waste heat boiler installs, Hydrostatic test is done using examination aqueous, test pressure 3.11MPa,
Environment temperature is not less than 5 DEG C, and water temperature is not less than 21 DEG C, and water temperature is no more than 70 DEG C, when the water pressure test, hydraulic pressure should slowly on
It rises, the rate of rise is no more than 0.3MPa/min should suspend boosting when hydraulic pressure rises to the 10% of test pressure, check for leaking
Water and abnormal phenomenon, then boost to operating pressure 2.49MPa again, and pause boosting checks for leak and abnormal phenomenon, finally
Test pressure 3.11MPa is boosted to, and keeps 20min under test pressure, then is down to operating pressure and is checked, during inspection
Pressure should remain unchanged；
F. waste heat boiler boils stove and seal tightness test：Dosing（Dosing mouth is the relief valve connection on drum）, start combustion engine to 30%
Load or so adjusts air bleeding valve steam evacuation on drum, maintains drum pressure to 0.3 ~ 0.5MPa, temperature is at 120 ~ 130 DEG C
Under the conditions of boil for 24 hours, then open boiler blow down valve carry out blowdown, form layer protecting film on the metal surface, boil furnace temperature
It should control at 120 ~ 130 DEG C, capacity 10-15%, and by controlling generator load or controlling the aperture of flue damper come real
It is existing, then the sealing of weld, manhole, hand hole, boiler portion, water and steam valve is checked.
2. a kind of distributed gas electricity installation method according to claim 1, it is characterised in that：It is mentioned in the step 1
Foundation bolt grouting method includes parallels arrangement, inclined sizing block pairing uses, equipment is levelling, placement of parallels group, foundation bolt are pacified
Dress and grouting.
3. a kind of distributed gas electricity installation method according to claim 1, it is characterised in that：It is mentioned in the step 2
Pipeline corrosion protection and adiabatic heat-insulation are constructed by the antiseptic project of pipeline, should be after the strength test of pipeline, air-tight test qualification
It carries out, pipeline should remove the dirts such as surface iron rust, burr, grease before anti-corrosion, required according to drawing leader and specification is advised
It is fixed, it derusts to all pipelines, paints after derusting, then heat insulation layer is socketed in by outer layer shell by adhesive tape joint seal
On.
4. a kind of distributed gas electricity installation method according to claim 1, it is characterised in that：Examination water in the step 6
Liquid is demineralized water.
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| CN115820074A (en) * | 2022-11-29 | 2023-03-21 | 江苏祺祥建设工程有限公司 | Modified epoxy resin anticorrosive coating for chimney, absorption tower and flue and preparation process thereof |
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Application publication date: 20180904 |