CN115306163A - Modularized construction method for tubular heating furnace in petrochemical engineering - Google Patents
Modularized construction method for tubular heating furnace in petrochemical engineering Download PDFInfo
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- CN115306163A CN115306163A CN202211113531.2A CN202211113531A CN115306163A CN 115306163 A CN115306163 A CN 115306163A CN 202211113531 A CN202211113531 A CN 202211113531A CN 115306163 A CN115306163 A CN 115306163A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention discloses a modular construction method of a tubular heating furnace in petrochemical engineering, belonging to the technical field of heating furnace installation. Therefore, the construction efficiency can be improved to the greatest extent, the construction cost is saved, and the total construction period is shortened to a greater extent.
Description
Technical Field
The invention belongs to the technical field of heating furnace installation, and particularly relates to a modular construction method of a tubular heating furnace in petrochemical engineering.
Background
With the increasing progress of various oil refining processes and the development of device scale production, the scale and production capacity of various refining equipment are also increased, so that great challenges are brought to the manufacturing, installation and transportation of the equipment. The heating furnace is nonstandard equipment with relatively high technical content and relatively complex structure in a chemical process device. At present, the domestic known heating furnace construction method is directly constructed on site, the construction period is relatively long, and the heating furnace is easily interfered by external factors.
Therefore, it is necessary to optimize the construction method of the tubular heating furnace, and it is a better solution to adopt the modular manufacturing and installation process for the complex and large-sized refining equipment such as the large heating furnace.
Disclosure of Invention
The invention aims to provide a modular construction method for a petrochemical tubular heating furnace, so as to improve the construction efficiency.
In order to solve the technical problems, the invention adopts a modular construction method of a petrochemical tubular heating furnace, which comprises the following steps,
the method comprises the following steps that firstly, radiation chamber modules are prefabricated in a slicing mode and installed;
the radiation chamber is divided into a furnace bottom, a side wall, an end wall and a furnace top;
the side wall and the end wall are integrally prefabricated in a workshop, the split positions of the side wall and the end wall are subjected to spot welding temporarily during prefabrication, the spot welding positions are ground before transportation, and then the side wall and the end wall are respectively transported to an assembly site; the furnace bottom is divided into a plurality of pieces for prefabrication, and the pieces are transported to an assembly site;
firstly, mounting a furnace bottom, propping the lower part of the furnace bottom close to an end wall by using angle steel, and then splicing the end wall and the side wall; after the assembly of the furnace bottom, the side wall and the end wall is finished, erecting a full scaffold inside the radiation chamber;
the furnace top is integrally prefabricated in a workshop, a hanging frame beam is arranged in the furnace top, and an accessory part is arranged on the furnace top; after the prefabrication of the furnace top is finished, dividing the furnace top into a plurality of pieces and transporting the pieces to an assembly site; before the furnace top is hoisted, the furnace tube hangers are sequentially arranged on the hanger beams, then the furnace tubes are arranged on the furnace tube hangers, and then the furnace top is hoisted;
prefabricating and installing a radiation chamber convection section module;
the radiation chamber convection section is divided into a middle frame and a radiation convection flue, prefabricated in a workshop and transported to an assembly site for assembly forming, and hoisting and welding are carried out;
prefabricating and installing convection section modules;
the convection section is divided into a convection module, a convection subframe and a convection top flue, which are respectively prefabricated in a workshop and transported to an assembly site for assembly forming, and then hoisting and welding are carried out; the integral assembly of the heating furnace is completed;
and step four, transporting the integrally assembled heating furnace to an installation site for installation.
Further, in the first step, when the side wall and the end wall are prefabricated, the steel structure frames of the side wall and the end wall are prefabricated respectively, and then the plates are attached to the steel structure frames.
Further, in the first step, the accessory parts comprise a furnace tube hoisting door, a temperature measuring sleeve, a flue gas sampling port, a pressure measuring sleeve and a zirconia oxygen measuring sleeve.
Further, in the second step, the middle frame is divided into an X-axis middle frame and a Y-axis middle frame, and the middle frames are respectively manufactured in a workshop and then transported to an assembly site for assembly and forming, and then hoisting and welding are carried out.
And further, in the second step, the radiation-to-convection flue is divided into an upright flue and an elbow, the upright flue and the elbow are respectively manufactured in a workshop and then transported to an assembly site for assembly and forming, and then hoisting and welding are carried out.
And further, in the third step, the convection module is divided into 4 small modules to be prefabricated in a workshop and transported to an assembly site to be hoisted.
Further, in the third step, the convection sub-frame is divided into 2 axial frames, and the axial frames are manufactured, formed, transported to the assembly site and hoisted and welded in a workshop.
Further, in the fourth step, the transportation means for transporting the integrally assembled heating furnace to the installation site includes a power module transportation vehicle and a barge.
According to the invention, the heating furnace is manufactured in a workshop by modules, the modules are divided into a radiation chamber, a middle frame, a radiation to convection flue, a convection module, a convection subframe and a furnace top flue, the modules are manufactured into segments in the workshop, then the segments are transported to the site to be assembled to form three modules (a heating furnace radiation chamber module, a radiation to convection flue module and a convection section module), and hoisting and welding are carried out, and finally the three modular devices are installed into an integral device. Therefore, the construction efficiency can be improved to the greatest extent, the construction cost is saved, and the total construction period is shortened to a greater extent.
The method is suitable for the construction of heating furnace projects with narrow operation fields.
Drawings
FIG. 1 is a process flow diagram of a construction method for modular construction of a tubular heating furnace for petrochemical industry according to the present invention.
Detailed Description
A typical embodiment of the present invention provides a modular construction method for a tubular heating furnace for petrochemical industry, which comprises the following steps, with reference to fig. 1.
Firstly, prefabricating and installing radiation chamber modules in a segmented manner;
the radiation chamber is divided into a furnace bottom, a side wall, an end wall and a furnace top;
the side wall and the end wall are integrally prefabricated in a workshop, the split positions of the side wall and the end wall are subjected to spot welding temporarily during prefabrication, the spot welding positions are ground before transportation, and then the side wall and the end wall are respectively transported to an assembly site; the furnace bottom is divided into a plurality of pieces for prefabrication, and the pieces are transported to an assembly site;
firstly, mounting a furnace bottom, propping the lower part of the furnace bottom close to an end wall by using angle steel, and then splicing the end wall and the side wall; after the assembly of the furnace bottom, the side wall and the end wall is finished, a full hall scaffold is erected inside the radiation chamber;
the furnace roof is integrally prefabricated in a workshop, a hanger beam is arranged in the furnace roof, and auxiliary components are arranged on the furnace roof; after the prefabrication of the furnace top is finished, dividing the furnace top into a plurality of pieces and transporting the pieces to an assembly site; before the furnace top is hoisted, the furnace tube hangers are sequentially arranged on the hanger beams, then the furnace tubes are arranged on the furnace tube hangers, and then the furnace top is hoisted;
prefabricating and installing a radiation chamber convection section module;
the radiation chamber convection section is divided into a middle frame and a radiation convection flue, and the middle frame and the radiation convection flue are prefabricated in a workshop, transported to an assembly site for assembly and forming, and hoisted and welded;
prefabricating and installing convection section modules;
the convection section is divided into a convection module, a convection subframe and a convection top flue, which are respectively prefabricated in a workshop and transported to an assembly site for assembly forming, and then hoisting and welding are carried out; the integral assembly of the heating furnace is completed;
and step four, transporting the integrally assembled heating furnace to an installation site for installation.
The prefabricated mode of heating furnace that this embodiment provided belongs to "on-the-spot type quasi-factory" prefabricated mode, adopts the modularization segmentation, transports the module of making to the scene again, carries out the modularization hoist and mount, and then splices good whole heating furnace equipment.
The modular installation of the heating furnace in the invention refers to that the heating furnace is integrally divided into three large modules according to the overall size and the transportation route of the heating furnace, the manufacturing of the modules in a piece manner is completed in a workshop, and then the modules are transported to an assembly site to assemble the pieces.
The following provides a relatively specific example for further clarifying and completing the technical solution claimed in the present invention.
Prefabrication of end wall, side wall, furnace bottom and furnace top of radiation chamber
The prefabrication of the radiation section comprises prefabrication of end wall and side wall steel structures and prefabrication of a furnace bottom top steel structure.
Before prefabrication, leveling by a level gauge in a factory building, padding the stand column to the same elevation by a sizing block, performing measurement by the level gauge without errors, prefabricating the steel structure frame, and finally pasting the plate. In order to ensure the whole geometric dimension of the end wall and the side wall, the whole body is prefabricated firstly during prefabrication, and the slicing part is only spot-welded but not welded.
Foundation alignment
Before the radiation chamber is transported in a split mode, foundation alignment is firstly carried out on a split assembly site, and therefore split assembly welding is carried out on the split assemblies.
Separate transportation of end wall, side wall, furnace bottom and furnace top of radiation chamber
And grinding the spot welding part, hoisting the split sheets to a barge, paying attention to the fact that the split sheets need to be laid flat and are not prone to deformation, and completing deformation treatment once the split sheets are deformed and are transported to a group assembling site.
Welding and mounting of end wall, side wall and furnace bottom of radiation chamber in separate mode
And the sub-pieces are transported to an assembly site and then assembled into a whole to be hoisted, the geometric dimensions of the sub-pieces are rechecked, welding is started after the dimension is compounded without errors, meanwhile, the hanger drilling holes are drilled on the hanger beam during prefabrication, and accessories such as a fire door, an explosion door and the like are completely installed.
The bottom of the furnace is installed, and during installation, the lower part of a cross beam of the bottom of the furnace close to the end wall is supported by angle steel to prevent falling.
End wall and side wall splicing of radiation chamber
And hoisting the end wall and the side wall in a counterclockwise sequence, adjusting the verticality by using a theodolite, connecting the end wall and the side wall, rechecking the geometric dimension of the radiation chamber, and finally welding the edge sealing angle steel.
Prefabrication and installation of radiation room platforms and ladders
According to the prefabricated radiation section platform of known drawing specification, the platform railing makes the specification grinding apparatus and carries out prefabrication in batches to properly handle, prevent to warp. After the radiation chamber is installed, the ladder and the platform are installed, and the steel grating is paved.
Steel pipe scaffold for building radiation room
After the radiation chamber group is finished, a steel pipe full scaffold is built inside the radiation chamber group.
Prefabrication of radiant chamber furnace roof steel structures
The furnace top of the radiation chamber is integrally prefabricated, a hanging frame beam is drilled, a hole is drilled in the upper surface of a flue outlet of the radiation chamber, and after the prefabrication is completed, a furnace tube hanging door, a temperature measuring sleeve, a flue gas sampling port, a pressure measuring sleeve and a zirconia oxygen measuring sleeve are installed on the furnace top. The furnace tops of the radiation chambers are divided into four groups and transported to the assembly site. Before the furnace top is hoisted, furnace tube hangers are sequentially arranged on hanger beams, and the lifting hooks are fixed on the hanger rods by iron wires.
Mounting of furnace tube hoisting, heat preservation nail welding and side wall furnace tube bracket
After the full framing of the radiation chamber is completed, the furnace tube hoisting, the heat preservation nail welding and the side wall furnace tube bracket installation are started, and then the furnace top hoisting is started.
Furnace roof installation
And after the furnace top is hoisted, welding, derusting, paint supplementing and performing a furnace top water leakage test.
Prefabrication and installation of intermediate frame of radiation chamber roof
Middle frame of radiant chamber furnace roof, X-axis middle frame: the specification is A18.55m B4.3m, the weight is 12.13t, divide two pieces and prefabricate in the factory building. Y-axis intermediate frame: the specification is A12.8m4.3 m, the weight is 7.96t, and the three-piece prefabricated plate is divided into three pieces.
Prefabrication and installation of radiation-to-convection flue
And (3) prefabricating the radiation-convection flue in a workshop, transporting the radiation-convection flue to an assembly site by using a short barge vehicle, and performing hoisting operation after checking that the size is correct on the site.
Convection section module installation
The convection section is divided into 4 small modules for prefabrication in a workshop, the minimum module reaches 32 tons, and the heaviest module reaches 69 tons, so that hoisting is a great difficulty, and 2 300T truck cranes are used for being mutually cooperated and matched, so that the convection module is safely hoisted in an expected time.
Convection pair frame prefabrication and installation
The total weight of the convection subframe steel structure is 45.65t, the convection subframe steel structure is divided into 8 pieces for prefabrication, and after prefabrication is finished, the convection subframe steel structure is transported to the site by a plate trailer, and four groups are formed by assembly.
Convection top flue installation
The convection top flue is prefabricated in a workshop, is transported to an assembly site by a short barge vehicle, and is hoisted and welded after the size is verified.
Convection section elbow box frame and box door installation
After the convection subframe is installed, the elbow box frame and the box door can be installed, and the whole convection section is subjected to a pressing experiment after the installation is finished.
And (4) prefabricating and installing a convection section ladder and a platform.
After the ladder and the platform of the convection section are prefabricated, the ladder and the platform are well preserved without deformation and are hoisted and welded after being transported to an assembly site.
Shipping and transporting heating furnace
After preparation of roll-on transportation, the assembled heating furnace is roll-on loaded onto a wharf docked barge by using an SPMT (power module transport vehicle), and the furnace body is fixed with a lug pulling shaft pin on a ship deck by using a diagonal brace made of a steel pipe of 8709and 300 so that the barge can be transported to an installation site.
1 transport vehicle
The transport vehicle adopted by the wharf rolling and transporting is an SPMT (power module transport vehicle) which is rolled and loaded on the wharf, and is heavy transport equipment which is self-powered (hydrostatic driving), hydraulically suspended and capable of realizing modular combined parallel operation. The SPMT can meet the requirements of cargo transportation of various loads and sizes, has modules with different specifications of 4 axes and 6 axes, can be used independently, can also be combined in a plurality of transverse or longitudinal parallel vehicles according to requirements, can be in rigid connection or soft connection, and is connected with a PPU (Power head) to form a self-driven module transportation vehicle.
2 transportation support and sea transportation binding
Before roll-on and roll-off transportation, a transportation support is installed at the bottom of the heating furnace, the upright columns and the main beams of the transportation support are made of H-shaped steel, and the inclined struts are made of channel steel. The heating furnace with large span still needs to be reinforced inside the radiation chamber to ensure that the furnace bottom transportation support cannot cause deformation of the furnace bottom cross beam after being stressed.
The marine transportation binding is mainly characterized in that the furnace body is fixed with a lug pulling shaft pin on a ship deck by an inclined strut made of a steel pipe of 8709300. After completion, the furnace is transported to the installation site by barge.
The heating furnace and the foundation are assembled and installed
When the whole heating furnace is delivered from the wharf, the foundation in place on site needs to be processed, and the heating furnace waits to be in place. And after the barge is landed, the heating furnace is rolled to an installation site by using the SPMT for in-place installation.
Mounting of burners
And after the whole heating furnace and the foundation group are assembled, starting to install the burner, and after the burner is installed, if the burner needs to be adjusted in time after being changed, clearing the garbage on the furnace body, removing rust, repairing paint, and checking and accepting until the completion.
Claims (8)
1. A petrochemical tubular heating furnace modular construction method is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps that firstly, radiation chamber modules are prefabricated in a slicing mode and installed;
the radiation chamber is divided into a furnace bottom, a side wall, an end wall and a furnace top;
the side wall and the end wall are integrally prefabricated in a workshop, the split positions of the side wall and the end wall are subjected to spot welding temporarily during prefabrication, the spot welding positions are ground before transportation, and then the side wall and the end wall are respectively transported to an assembly site; the furnace bottom is divided into a plurality of pieces for prefabrication, and the pieces are transported to an assembly site;
firstly, mounting a furnace bottom, propping the lower part of the furnace bottom close to an end wall by using angle steel, and then splicing the end wall and the side wall; after the assembly of the furnace bottom, the side wall and the end wall is finished, a full hall scaffold is erected inside the radiation chamber;
the furnace top is integrally prefabricated in a workshop, a hanging frame beam is arranged in the furnace top, and an accessory part is arranged on the furnace top; after the prefabrication of the furnace top is finished, dividing the furnace top into a plurality of pieces and transporting the pieces to an assembly site; before the furnace top is hoisted, the furnace tube hangers are sequentially arranged on the hanger beams, then the furnace tubes are arranged on the furnace tube hangers, and then the furnace top is hoisted;
prefabricating and installing a conversion convection section module of the radiation chamber;
the radiation chamber convection section is divided into a middle frame and a radiation convection flue, and the middle frame and the radiation convection flue are prefabricated in a workshop, transported to an assembly site for assembly and forming, and hoisted and welded;
prefabricating and installing convection section modules;
the convection section is divided into a convection module, a convection subframe and a convection top flue, which are respectively prefabricated in a workshop and transported to an assembly site for assembly forming, and then hoisting and welding are carried out; the integral assembly of the heating furnace is completed;
and step four, transporting the integrally assembled heating furnace to an installation site for installation.
2. The modular construction method of a tubular heating furnace for petrochemical industry according to claim 1, wherein: in the first step, when the side wall and the end wall are prefabricated, firstly, the steel structure frame of the side wall and the steel structure frame of the end wall are prefabricated respectively, and then plates are pasted on the steel structure frames.
3. The modular construction method of a tubular heating furnace for petrochemical industry as claimed in claim 2, wherein: in the first step, the accessory parts comprise a furnace tube hoisting door, a temperature measuring sleeve, a flue gas sampling port, a pressure measuring sleeve and a zirconia oxygen measuring sleeve.
4. The modular construction method of a tubular heating furnace for petrochemical industry according to claim 1, 2 or 3, wherein: and in the second step, the middle frame is divided into an X-axis middle frame and a Y-axis middle frame, the X-axis middle frame and the Y-axis middle frame are manufactured in a workshop and then are transported to an assembly site for assembly and forming, and then hoisting and welding are carried out.
5. The modular construction method of a tubular heating furnace for petrochemical industry according to claim 4, wherein: and in the second step, the radiation-to-convection flue is divided into an upright flue and an elbow, the upright flue and the elbow are respectively manufactured in a workshop and then transported to an assembly field for assembly forming, and then hoisting welding is carried out.
6. The modular construction method of a tubular heating furnace for petrochemical industry according to claim 5, wherein: in the third step, the convection module is divided into 4 small modules which are prefabricated in a workshop and transported to an assembly site for hoisting.
7. The modular construction method of a tubular heating furnace for petrochemical industry as claimed in claim 6, wherein: in the third step, the convection sub-frame is divided into 2 axial frames, and the axial frames are manufactured, formed and transported to the assembly site for hoisting and welding.
8. The modular construction method of a tubular heating furnace for petrochemical industry as claimed in claim 1 or 7, wherein: in the fourth step, the transportation means for transporting the integrally assembled heating furnace to the installation site comprises a power module transportation vehicle and a barge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211113531.2A CN115306163A (en) | 2022-09-14 | 2022-09-14 | Modularized construction method for tubular heating furnace in petrochemical engineering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211113531.2A CN115306163A (en) | 2022-09-14 | 2022-09-14 | Modularized construction method for tubular heating furnace in petrochemical engineering |
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Citations (5)
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|---|---|---|---|---|
| EP0143697A2 (en) * | 1983-11-16 | 1985-06-05 | B T U Engineering Corporation | Modular V-CVD diffusion furnace |
| CN101968313A (en) * | 2010-11-24 | 2011-02-09 | 茂名重力石化机械制造有限公司 | Cylindrical tube type heating furnace capable of being assembled |
| CN103727792A (en) * | 2012-10-15 | 2014-04-16 | 中国石油化工集团公司 | Process for installing furnace body of tube-type heating furnace |
| CN104654795A (en) * | 2013-11-22 | 2015-05-27 | 江苏东方成套设备制造有限公司 | Modularly mounted heating furnace |
| CN106839775A (en) * | 2017-03-16 | 2017-06-13 | 宁波连通设备集团有限公司 | A kind of modular manufacturing method of heating furnace and the heating furnace manufactured with the method |
-
2022
- 2022-09-14 CN CN202211113531.2A patent/CN115306163A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0143697A2 (en) * | 1983-11-16 | 1985-06-05 | B T U Engineering Corporation | Modular V-CVD diffusion furnace |
| CN101968313A (en) * | 2010-11-24 | 2011-02-09 | 茂名重力石化机械制造有限公司 | Cylindrical tube type heating furnace capable of being assembled |
| CN103727792A (en) * | 2012-10-15 | 2014-04-16 | 中国石油化工集团公司 | Process for installing furnace body of tube-type heating furnace |
| CN104654795A (en) * | 2013-11-22 | 2015-05-27 | 江苏东方成套设备制造有限公司 | Modularly mounted heating furnace |
| CN106839775A (en) * | 2017-03-16 | 2017-06-13 | 宁波连通设备集团有限公司 | A kind of modular manufacturing method of heating furnace and the heating furnace manufactured with the method |
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