CN107514630B - Complete set installation method for biomass high-temperature high-pressure circulating fluidized bed boiler - Google Patents
Complete set installation method for biomass high-temperature high-pressure circulating fluidized bed boiler Download PDFInfo
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- CN107514630B CN107514630B CN201710686744.7A CN201710686744A CN107514630B CN 107514630 B CN107514630 B CN 107514630B CN 201710686744 A CN201710686744 A CN 201710686744A CN 107514630 B CN107514630 B CN 107514630B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a complete set installation method of a biomass high-temperature high-pressure circulating fluidized bed boiler, which comprises the following steps: before hoisting equipment components such as a boiler barrel, a water-cooled wall and the like, a boiler body frame is built firstly and comprises an upright post steel frame, a cross beam and a top plate beam, scales are marked on the inner sides of the steel frame and the cross beam, grid lines are arranged on the bottom surface of the top plate beam, and an infrared laser transmitter is arranged on the inner side of the cross beam; and a winch is arranged on the top plate beam, a sliding track, a pulley block and a chain block matched with the sliding track are arranged in the frame, and the pulley block and the chain block are used for carrying out hook replacement for multiple times to replace each equipment assembly in place. The installation method is simple and rapid, the construction safety is high, the accurate positioning of each device is orderly realized, the high temperature, the stability and the air tightness of the combustion of the biomass fuel can be ensured, and the safety factor level of the combustion of the biomass fuel is reached.
Description
Technical Field
The invention relates to the field of biomass treatment equipment, in particular to a complete set installation method of a biomass high-temperature high-pressure circulating fluidized bed boiler.
Background
The biomass high-temperature high-pressure circulating fluidized bed boiler directly burns biomass fuels such as crop straws and the like, and heats steam by using energy generated by combustion for power generation. Biomass boilers used today for power generation mainly include fluidized bed biomass boilers and grate firing boilers. Fluidized bed combustion is most different from ordinary combustion in the state when particles are burned, and fluidized bed particles are in fluidized combustion reaction and heat exchange process. The biomass fuel has high water content, and the fluidized bed technology adopts sand, coal-fired furnace slag and the like as vulcanizing media to formThe dense-phase bed with large heat storage quantity and high temperature is beneficial to the complete combustion of the biomass fuel. In addition, the fluidized bed boiler can maintain the combustion temperature of about 850 ℃, the fuel is not easy to slag after being burnt out, and NO is reducedXAnd SOXAnd the like. Because the biomass high-temperature high-pressure circulating fluidized bed boiler has high combustion temperature, strong air tightness required during combustion, various components, complex installation process and high required safety factor, and the installation requirement of the biomass high-temperature high-pressure circulating fluidized bed boiler is difficult to meet without guidance of a systematic complete installation method, the biomass high-temperature high-pressure circulating fluidized bed boiler has the advantages of short construction period and high construction safety, can ensure to maintain the high temperature, the stability and the air tightness of biomass fuel combustion, and reaches the safety factor level of the biomass fuel combustion.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
Still another object of the present invention is to provide a method for installing a biomass high-temperature high-pressure circulating fluidized bed boiler in a complete set, which has a short construction period and high construction safety, and can ensure the maintenance of high temperature, stability and airtightness of biomass fuel combustion, thereby achieving the safety coefficient level of biomass fuel combustion.
To achieve these objects and other advantages in accordance with the present invention, a biomass high-temperature high-pressure circulating fluidized bed boiler plant installation method is provided, which comprises the following steps:
before hoisting of equipment components such as a boiler barrel, a water-cooled wall and the like, a boiler body frame is built firstly and comprises a stand column steel frame, a cross beam and a top plate beam, scales are marked on the inner sides of the steel frame and the cross beam, grid lines are arranged on the bottom surface of the top plate beam, and an infrared laser transmitter is further arranged on the inner side of the cross beam.
And a winch is arranged on the top plate beam, a sliding track, a pulley block and a chain block matched with the sliding track are arranged in the frame, and the pulley block and the chain block are used for carrying out hook replacement for multiple times to replace each equipment assembly in place.
Preferably, the number of the upright post steel frames is at least 4, the upright post steel frames are vertically fixed on the ground, the cross beam is fixedly arranged between two adjacent upright post steel frames, the angle of the infrared laser emitter can be changed at will, and the top plate beam is arranged right above the cross beam.
Preferably, the sliding track is arranged on the lower portion of the top plate beam and is of an I-beam structure, and the trolley group is connected to the I-beam structure through vertical portions, pressed by rollers from two sides, of the I-beam structure.
Preferably, the tackle pulley further comprises a through hole arranged at the horizontal part of the I-shaped beam structure, and a fastening device comprising a cylindrical pin and a spring piece is arranged at the joint of the tackle pulley and the horizontal part of the I-shaped beam structure.
Preferably, in the complete installation method of the biomass high-temperature and high-pressure circulating fluidized bed boiler, the hoisting steps of the equipment components such as the boiler barrel, the water-cooled wall and the like are as follows:
step one, assembling and reinforcing equipment components such as a boiler barrel, a water-cooled wall and the like.
And step two, aligning a horizontal central line and a vertical central line of the drum, connecting the circumference of the lower part of the drum with two U-shaped round steel suspenders, aligning a vertical hoisting point of the drum by using an infrared laser transmitter, and arranging a drill hole on the top plate beam corresponding to the vertical hoisting point of the drum, wherein the circumferential diameter of the drill hole is determined by allowing the upper end of the U-shaped round steel suspenders to pass through.
And step three, the drum is lifted by a plurality of sets of pulley blocks with a crawler crane and a winch as power, the drum is vertically lifted to the central standard height of the drum through two U-shaped round steel suspenders, and two ends of each round steel suspender are connected and fixed with a top plate beam.
And fourthly, aligning a temporary fixing position of the water-cooled wall by using an infrared laser transmitter, arranging a through hole at a corresponding position of a horizontal part of the I-beam structure, after the water-cooled wall is hung to a vertical position, sliding and repeatedly hooking the water-cooled wall through a tackle pulley and a chain block arranged in the frame, replacing the water-cooled wall in place, and then temporarily fixing the water-cooled wall at the through hole arranged on the I-beam structure through a fastening device, namely a cylindrical pin and a spring piece.
Preferably, the upper end of the U-shaped round steel suspender is provided with a thread groove, the U-shaped round steel suspender further comprises a nut and a nut backing plate which are matched with the thread groove, and the upper end of the round suspender passes through the drilled hole arranged on the top plate beam in the second step and is screwed and fixed through the nut and the backing plate in the third step.
Preferably, after the boiler barrel is in place, enough expansion amount is reserved according to requirements, and the boiler barrel is temporarily fixed by channel steel, wherein the channel steel is arranged below the boiler barrel, and two ends of the channel steel are respectively fixed on the cross beam.
Preferably, the water wall is formed by assembling tube banks into a plurality of membrane structures, and the water wall is reinforced before hoisting, namely, a temporary reinforcing beam is welded on a rigid beam of the water wall or a temporary supporting structure is welded on the membrane of the water wall.
Preferably, the method further comprises the installation of a ladder platform, a header, a cyclone separator, an air preheater, an economizer, a low-temperature superheater, a high-temperature superheater, a body pipeline, a combustion point post-system and an outer guard plate, and the operation tests of water pressure, air tightness and the like, and the furnace building, baking and boiling processes.
The invention at least comprises the following beneficial effects:
through building the boiler body frame including stand steelframe, crossbeam and roof beam earlier before the hoist and mount of each equipment subassembly such as drum and water-cooling wall, steelframe and crossbeam inboard mark the scale, be provided with the gridline on the roof beam bottom surface, the crossbeam inboard still is provided with infrared laser emitter, and accessible laser aims different scales or the different nodical of gridline and carries out space positioning, conveniently confirms spatial position and the mounting point of equipment such as drum and water-cooling wall, installs the hoist engine on the roof beam, and set up in the frame and can follow gliding tackle pulley group and the back chain of slide rail, conveniently realize trading the hook many times, orderly realize the accuracy of each equipment and take one's place, mounting method is simple swift, and the construction safety is high, not only can ensure the work of handing over as scheduled, guarantees the factor of safety rank of later stage operation moreover.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a process flow diagram of a complete installation method of a biomass high-temperature high-pressure circulating fluidized bed boiler according to the invention;
FIG. 2 is a schematic view of the drum hoist of the present invention;
FIG. 3 is a schematic illustration of the water wall assembly of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, fig. 2 and fig. 3, the invention provides a method for installing a biomass high-temperature high-pressure circulating fluidized bed boiler in a complete set, which has the technical scheme as follows:
before hoisting of equipment components such as a boiler barrel and a water-cooled wall, a boiler body frame is built firstly and comprises a stand column steel frame 1, a cross beam 2 and a top plate beam 3, scales are marked on the inner sides of the steel frame 1 and the cross beam 2, grid lines are arranged on the bottom surface of the top plate beam, and an infrared laser transmitter is further arranged on the inner side of the cross beam 2.
And a winch 4 is arranged on the top plate beam, a sliding track, a pulley block 5 and a chain block 6 matched with the sliding track are arranged in the frame, and the pulley block 5 and the chain block 6 are used for changing hooks for multiple times to replace each equipment assembly in place.
A boiler body frame comprising upright steel frames 1, cross beams 2 and roof beams 3 is built before lifting equipment components such as a boiler barrel 8, a water-cooled wall 9 and the like, scales are marked on the inner sides of the steel frame 1 and the cross beam 2, grid lines are arranged on the bottom surface of the top plate beam, an infrared laser emitter is arranged on the inner side of the cross beam 2, the space positioning can be carried out by aiming at different intersection points of different scales or grid lines through laser, the space positions and the installation points of the equipment such as the boiler barrel 8, the water-cooled wall 9 and the like can be conveniently determined, the hoisting machine 4 is arranged on the top plate beam, the trolley group 5 and the chain block 6 which can slide along the sliding track are arranged in the frame, so that repeated hook replacement is convenient to realize, accurate positioning of each device is orderly realized, the installation method is simple and rapid, the construction safety is high, the scheduled work can be ensured, and the safety factor level of later-period operation is ensured.
In a preferred scheme, the number of the upright steel frames 1 is at least 4, the upright steel frames are vertically fixed on the ground, the cross beams 2 are fixedly arranged between two adjacent upright steel frames 1, the angle of the infrared laser emitter can be changed at will, and the top plate beam 3 is arranged right above the cross beams 2, namely the top end of the upright steel frame 1.
In the scheme, the upright post steel frame 1 comprises an overground part, an underground part and a fixed bottom plate, the underground part extends into the ground, the verticality of the upright post steel frame is kept through the fixed bottom plate, the upright post steel frame and the crossbeam 2 and the top plate beam 3 form a square structure, and the infrared laser transmitter can be randomly changed in angle, so that different space positions can be conveniently positioned.
In a preferable scheme, the sliding track is arranged at the lower part of the roof beam 3 and is of an I-beam structure, and the trolley group 5 compresses the vertical part of the I-beam structure from two sides through rolling shafts and is connected to the I-beam structure.
In the scheme, the I-beam structure ensures that the pulley block slides along the line shape on the sliding track, and the friction resistance is reduced through the rolling shaft, so that the pulley block freely slides on the sliding track to reduce the abrasion.
In a preferable scheme, the pulley block further comprises a through hole arranged at the horizontal part of the I-shaped beam structure, and a fastening device is arranged at the joint of the pulley block and the horizontal part of the I-shaped beam structure and comprises a cylindrical pin and a spring piece.
In the scheme, after the installation positions of the equipment components of the boiler are determined through the infrared laser transmitter, the horizontal part of the I-beam structure is provided with the corresponding through hole, the tackle pulley is conveyed to the through hole along the sliding track, the spring leaf in the original deformation state recovers deformation to squeeze the cylindrical pin into the through hole and fix the tackle pulley, the equipment components are prevented and controlled from displacing, and the later fixing and connecting work is facilitated to be smoothly unfolded.
In the complete installation method of the biomass high-temperature high-pressure circulating fluidized bed boiler, as shown in fig. 2 and 3, the hoisting steps of the equipment components such as the drum 8, the water-cooled wall 9 and the like are as follows:
step one, assembling and reinforcing equipment components such as the boiler barrel 8, the water wall 9 and the like.
And step two, aligning a horizontal central line and a vertical central line of the boiler barrel 8, connecting the circumference of the lower part of the boiler barrel 8 with two U-shaped round steel suspenders, aligning a vertical boiler barrel hoisting site by using an infrared laser transmitter, and arranging a drill hole on the top plate beam 3 corresponding to the vertical boiler barrel hoisting site, wherein the circumferential diameter of the drill hole is determined by allowing the upper end of the U-shaped round steel suspenders to pass through.
And step three, the drum is lifted by a plurality of sets of pulley blocks 5 which are powered by a crawler crane 7 and a winch 4, the drum is vertically lifted to the central standard height of the drum by two U-shaped round steel suspenders, and two ends of each round steel suspender are fixedly connected with the top plate beam 3.
And fourthly, aligning a temporary fixing position of the water-cooled wall by using an infrared laser transmitter, arranging a through hole at a corresponding position of a horizontal part of the I-beam structure, after the water-cooled wall is hung to a vertical position, sliding and repeatedly hooking the water-cooled wall by a pulley block 5 and a chain block 6 which are arranged in a frame, replacing the water-cooled wall 9 in position, and then temporarily fixing the water-cooled wall at the through hole arranged on the I-beam structure by a fastening device, namely a cylindrical pin and a spring piece.
In the scheme, before assembly and reinforcement, the integrity and the flatness of parts of equipment components such as the boiler barrel 8, the water-cooled wall 9 and the like are checked, whether a welding position is tight or not is determined, welding is missed, ball passing tests are carried out on the water-cooled wall and other boiler pipelines, steel balls with the diameter of about 32mm are adopted, selected steel balls are numbered and strictly managed, and the pipelines after ball passing are timely closed to prevent foreign matters from entering the interior of a pipe group to cause blockage; and connecting the equipment components hoisted in place, wherein the structure surrounded by the water-cooled wall 9 hoisted in place is a hearth structure, and the joint of the water-cooled wall 9 is sealed by repair welding by adopting a sealing strip or a sealing plate.
In a preferable scheme, the upper end of the U-shaped round steel suspender is provided with a thread groove, the U-shaped round steel suspender further comprises a nut and a nut base plate which are matched with the thread groove, and the upper end of the round suspender passes through the drilled hole arranged on the top plate beam 3 in the second step and is screwed and fixed through the nut and the base plate.
In the scheme, the standard height and the installation site of the boiler barrel are aligned through infrared laser, namely, a through hole is drilled at the corresponding site on the top plate beam 3, after the boiler barrel is vertically hoisted in place, the upper end of the U-shaped round steel suspender penetrates through the drilled through hole, and the U-shaped round steel suspender is fixed on the top plate beam through the tightening of a nut and a base plate.
In a preferable scheme, after the boiler barrel 8 is in place, enough expansion amount is reserved according to requirements, and the boiler barrel is temporarily fixed by channel steel, wherein the channel steel is arranged below the boiler barrel, and two ends of the channel steel are respectively fixed on the cross beam 2.
In the above scheme, on the premise of enough expansion of the drum 8, a channel steel frame is adopted on the beam 2 to play a role in temporarily fixing the drum 8, which is certainly not limited to the channel steel, but also can be used as a temporary fixing device by using an I-steel or other rigid structures.
TABLE 1 table of allowable deviation values for drum installation inspection
In a preferred scheme, the water-cooled wall 9 is formed by assembling a plurality of membrane structures through tube banks, and the membrane structures are reinforced before hoisting, namely temporary reinforcing beams are welded on rigid beams of the water-cooled wall 9 or temporary supporting structures are welded on membranes of the water-cooled wall 9.
In the scheme, the water-cooled wall 9 is the core of the boiler, a plurality of membrane structures are formed by assembling tube rows on the ground, the water-cooled wall is large in size and poor in overall rigidity, and is the most difficult point of hoisting, I-steel, channel steel or steel tubes and the like are adopted for reinforcement before hoisting, the whole water-cooled wall 9 is connected into a whole, the rigidity of the water-cooled wall 9 is increased, and the hoisting safety is improved.
TABLE 2 Water wall Assembly allowable deviation Table
| Serial number | Examination item | Tolerance deviation (mm) |
| 1 | Levelness of header | 2 |
| 2 | Diagonal difference of assembly | 10 |
| 3 | Width of assembly | 2/1000, max 15 |
| 4 | Individual tube projection unevenness | ±5 |
| 5 | Length of assembly | ±10 |
| 6 | Central line verticality between headers | ±3 |
In a preferred scheme, the method further comprises the steps of mounting a ladder platform, a header, a cyclone separator, an air preheater, an economizer, a low-temperature superheater, a high-temperature superheater, a body pipeline, a combustion point post-system and an outer guard plate, performing operation tests on water pressure, air tightness and the like, and building, baking and boiling the furnace.
In the scheme, operation tests are arranged according to actual conditions in the hoisting process of each equipment assembly, the operation conditions of the hoisted equipment are checked in time, problems can be found conveniently and timely, the problems are solved, the header is assembled and welded with the water wall before the water wall is hoisted, radiographic inspection is carried out on a welding port, the hydraulic test is carried out before the combustion ignition system is installed, the outer guard plate can be installed in the hoisting process in a penetrating mode, and the furnace building, drying and boiling processes are carried out after the equipment assemblies of the biomass high-temperature high-pressure circulating fluidized bed boiler are installed.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. A complete set installation method of a biomass high-temperature high-pressure circulating fluidized bed boiler is characterized by comprising the following steps:
before the boiler barrel and the water wall equipment assembly are hoisted, a boiler body framework is firstly built and comprises an upright post steel frame, a cross beam and a top plate beam, scales are marked on the inner sides of the steel frame and the cross beam, grid lines are arranged on the bottom surface of the top plate beam, and an infrared laser transmitter is arranged on the inner side of the cross beam;
and a winch is arranged on the top plate beam, a sliding track, a pulley block and a chain block matched with the sliding track are arranged in the frame, and the pulley block and the chain block are used for carrying out hook replacement for multiple times to replace each equipment assembly in place.
2. The method for installing the biomass high-temperature high-pressure circulating fluidized bed boiler in the set according to claim 1, wherein at least 4 vertical column steel frames are arranged and vertically fixed on the ground, the cross beam is fixedly arranged between two adjacent vertical column steel frames, the infrared laser emitter can be freely turned, and the roof beam is arranged right above the cross beam.
3. The method for installing a biomass high-temperature high-pressure circulating fluidized bed boiler as claimed in claim 1, wherein the sliding rail is arranged at the lower part of the roof beam and is of an I-beam structure, and the trolley group is connected to the I-beam structure by pressing the vertical part of the I-beam structure from both sides through rollers.
4. The method for installing the biomass high-temperature and high-pressure circulating fluidized bed boiler in the set as claimed in claim 3, wherein a through hole is formed in the horizontal part of the I-shaped beam structure, and a fastening device comprising a cylindrical pin and a spring piece is arranged at the joint of the tackle pulley and the horizontal part of the I-shaped beam structure.
5. The method for installing the biomass high-temperature high-pressure circulating fluidized bed boiler in the set according to claim 1, wherein the hoisting steps of the boiler barrel and the water wall equipment component are as follows:
firstly, assembling and reinforcing a boiler barrel and a water wall equipment assembly;
aligning a horizontal central line and a vertical central line of the boiler barrel, connecting the circumference of the lower part of the boiler barrel with two U-shaped round steel suspenders, aligning a vertical hoisting point of the boiler barrel by using an infrared laser transmitter, and arranging a drilling hole on the top plate beam corresponding to the vertical hoisting point of the boiler barrel, wherein the circumferential diameter of the drilling hole is based on that the upper end of the U-shaped round steel suspenders can be allowed to pass through;
step three, the drum is lifted by a plurality of sets of pulley blocks with a crawler crane and a winch as power, the drum is vertically lifted to the central standard height of the drum by two U-shaped round steel suspenders, and two ends of each round steel suspender are connected and fixed with a top plate beam;
and fourthly, aligning a temporary fixing position of the water-cooled wall by using an infrared laser transmitter, arranging a through hole at a corresponding position of a horizontal part of the I-beam structure, after the water-cooled wall is hung to a vertical position, sliding and repeatedly hooking the water-cooled wall through a tackle pulley and a chain block arranged in the frame, replacing the water-cooled wall in place, and then temporarily fixing the water-cooled wall at the through hole arranged on the I-beam structure through a fastening device, namely a cylindrical pin and a spring piece.
6. The complete set of installation method of the biomass high-temperature and high-pressure circulating fluidized bed boiler according to claim 5, wherein the upper end of the U-shaped round steel hanger rod is provided with a thread groove, the complete set of installation method further comprises a nut and a nut backing plate which are matched with the thread groove, and in the third step, the upper end of the U-shaped round steel hanger rod penetrates through the drilled hole arranged on the top plate beam in the second step and is screwed and fixed through the nut and the backing plate.
7. The method for installing a biomass high-temperature high-pressure circulating fluidized bed boiler in a complete set according to claim 6, wherein after the boiler barrel is in place, enough expansion is reserved according to requirements, and the boiler barrel is temporarily fixed by using channel steel, wherein the channel steel is arranged below the boiler barrel, and two ends of the channel steel are respectively fixed on the cross beam.
8. The method for installing a biomass high-temperature high-pressure circulating fluidized bed boiler in a complete set according to claim 1 or 5, wherein the water-cooled wall is formed by assembling tube banks into a plurality of membrane structures, and the water-cooled wall is reinforced before hoisting, namely temporary reinforcing beams are welded on rigid beams of the water-cooled wall or temporary supporting structures are welded on the membrane of the water-cooled wall.
9. The method for installing a biomass high-temperature high-pressure circulating fluidized bed boiler set according to claim 1, further comprising the steps of installing a ladder platform, a header, a cyclone separator, an air preheater, an economizer, a low-temperature superheater, a high-temperature superheater, a body pipeline, a post-combustion system and an outer guard plate, and performing hydraulic pressure and air tightness operation tests, furnace building, furnace baking and furnace boiling processes.
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| CN113526369B (en) * | 2021-06-29 | 2022-12-09 | 中国电建集团山东电力建设第一工程有限公司 | Multi-machine matching hoisting method for ultra-long starting separator of boiler |
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| CN107514630A (en) | 2017-12-26 |
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