CN115162813B - Ground assembling method for cylindrical thin oil tank piston module - Google Patents
Ground assembling method for cylindrical thin oil tank piston module Download PDFInfo
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- CN115162813B CN115162813B CN202210825132.2A CN202210825132A CN115162813B CN 115162813 B CN115162813 B CN 115162813B CN 202210825132 A CN202210825132 A CN 202210825132A CN 115162813 B CN115162813 B CN 115162813B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000003466 welding Methods 0.000 claims abstract description 55
- 238000009434 installation Methods 0.000 claims abstract description 36
- 238000010276 construction Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000003908 quality control method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Classifications
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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
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/02—Containers for fluids or gases; Supports therefor
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
- F17B1/10—Guiding moving parts
Abstract
The invention belongs to the technical field of field installation, and particularly relates to a ground assembling method of a cylindrical thin oil tank piston module. Compared with the prior art, the invention has the beneficial effects that: by adopting the ground integral assembly welding, the welding shrinkage deformation allowance is reserved in advance, the chord height and the radius size of the piston can be controlled and adjusted in time after the assembly is completed, the effective quality control can be realized, and the safe and stable operation of the piston is ensured. After the whole ground assembly is completed, the piston can be integrally installed at high altitude, so that the installation speed is improved, the service time of a crane, a worker and the like is shortened, the construction cost is saved, and the economic benefit is improved.
Description
Technical Field
The invention belongs to the technical field of field installation, and particularly relates to a ground assembling method of a cylindrical thin oil tank piston module.
Background
The cylindrical lean oil tank is a novel dry gas storage tank, has the characteristics of high gas storage pressure, good sealing effect, stable operation and use functions and the like, and is widely used for blast furnace gas handling work. The gas holder achieves gas throughput through up-and-down operation, so that pressure balance of a pipe network is guaranteed, and safety risk of a high furnace pipe network is reduced.
The cylinder-shaped oil tank has a complex internal structure, the piston moves up and down along the inner wall of the cylinder, sealing oil is filled between the piston and the cylinder wall as a sealing medium, and the sealing oil can play an effective and safe sealing role in the piston operation process, so that the requirement on the size of the piston is very strict, and the requirement on the precision of manufacturing and mounting the piston is relatively high, so that the piston can achieve a better sealing effect.
The prior piston system adopts a mode of installing and welding a piston radial beam (7), a piston weft beam (8), a piston radial secondary beam (9) and a piston plate (10) independently, and the whole radial direction of the piston can shrink and deform after the radial welding amount of the piston is overlarge, so that the size from a piston center ring to an edge ring Liang Zhijing can be reduced, the size gap from the edge ring beam to the side plate is increased, the sealing oil leakage rate is improved, and the sealing effect of the piston is influenced. Because the piston system is complicated, the size of the edge ring beam is fixed, and the welding shrinkage allowance cannot be reserved on the piston beam, the size of the piston cannot be effectively controlled in the previous piston construction process.
In addition, when the radial girder is independently installed, the measurement position of the overhead operation is limited, the space installation size is not well controlled, so that the radial size deviation is about +/-80 mm when the girder is installed, each girder is required to be secondarily adjusted for the out-of-tolerance part until the out-of-tolerance part is qualified, then the secondary girder and the piston plate are installed, the conventional installation method leads to larger beam plate installation size deviation, the radial girder and part of members are required to be secondarily adjusted when the radial girder and part of members are installed, the dimensional deviation of the piston is difficult to control, the construction period and the construction cost are increased, and the radial girder, the weft girder and the piston plate are required to be installed and welded one by one at high altitude when the radial girder, the weft girder and the piston plate are installed, so that the welding difficulty is increased and the overhead operation risk is increased.
Disclosure of Invention
The invention aims to provide a ground assembling method of a cylindrical thin oil tank piston module, which overcomes the defects in the prior art, effectively controls the installation and welding shrinkage deformation on the ground through a ground assembling jig frame, is convenient and safe to operate, improves the working efficiency, shortens the construction operation time, particularly reduces the working load of high-altitude operation, and realizes the omnibearing technical breakthrough in quality, cost and construction safety.
In order to solve the problems, the invention adopts the following technical scheme:
The ground assembling method of the cylindrical thin oil tank piston module is characterized in that the piston is divided into a plurality of component members of a module A and a module B, a ground integral assembling and welding mode is adopted, welding shrinkage deformation allowance is reserved in advance, the chord height and the radius size of the piston can be controlled and adjusted in time after assembling is finished, and the size deviation is controlled within a design error, and the method specifically comprises the following steps:
Step one, preparing an assembling site;
step two, manufacturing an assembled jig frame, wherein the assembled jig frame structure comprises the following steps: radial tire frame beam, weft tire frame beam, tire frame column support, tire frame joist and piston beam limit clamping head, the manufacturing steps are as follows:
1) Paving two radial tire frame beams according to the distance between two adjacent piston main beams in a prepared assembly site;
2) Measuring the flatness of the radial jig frame beams by using a level gauge, installing weft jig frame beams between the two radial jig frame beams according to the interval between the piston weft beam to finish the fixation of the radial jig frame beams and the weft jig frame beams, and rechecking the flatness of the whole jig frame;
3) Setting up a tire frame column at each weft beam position based on the size interval of the piston weft beam, wherein the height of the tire frame column is set up according to the order of the chord heights at the positions of the piston weft beam and the two sides of the center, the height interval of the tire frame column is 500-1750mm, and the tire frame column supports are increased in three directions of each tire frame column for reinforcing the upright column strength;
4) Installing a jig frame joist according to the width of the radial beam of the piston within the range of 150-200mm at the top end of the jig frame column, and installing a piston beam limiting clamp at the end part of the jig frame joist for adjusting and fixing the position of the assembled radial beam of the piston;
Step three, assembling the piston module on the ground, wherein the piston module component is divided into a module A with a piston radial beam and a module B without the piston radial beam, and the module A and the module B are arranged at intervals to be spliced and welded into a cylindrical thin oil tank piston;
1) The assembly steps of the module A are as follows:
the first step: manufacturing a radial beam of the piston according to the radius and chord height of the piston, wherein the length of the radial beam of the piston is reserved to 100-200 mm during manufacturing;
And a second step of: the two manufactured piston radial beams are placed on a jig frame joist of a jig frame, fixing is completed after the size of the piston radial beams is determined, then the piston weft beams at two ends of the piston radial beams are installed according to a drawing, the rest piston weft beams are sequentially installed after the fixing is completed, the connection fixing and welding of the piston radial beams and the piston weft beams are completed, and finally other piston radial sub beams are installed and welded;
And a third step of: after the installation and welding of the main beams and the secondary beams of the pistons are finished, sequentially paving piston plates, wherein the piston plates at two ends of the module are not paved, the positions at two ends are used for installing and using the piston module, checking that the radial direction Liang Xiangao, the chord length and the size deviation of the end point of the piston are within the range of design errors, welding the piston plates in a weft-wise and radial-wise mode after the size detection and adjustment are finished, and transferring the module to carry out next group of module assembly welding work after the welding is finished;
2) The assembly step of the module B is as follows:
the first step: manufacturing a radial beam of the piston according to the radius and chord height of the piston, wherein the length of the radial beam of the piston is reserved to 100-200 mm during manufacturing;
and a second step of: the two manufactured piston radial beams are placed on a jig frame joist of a jig frame, fixing is completed after the size of the piston radial beams is determined, then the piston weft beams at two ends of the piston radial beams are installed according to a drawing, the rest piston weft beams are sequentially installed after the fixing is completed, the connection and the fixing of the piston radial beams and the piston weft beams are completed, the connection points are not welded, and finally other piston radial sub beams are installed and welded;
and a third step of: after the installation and welding of the main beams and the secondary beams of the pistons are finished, sequentially paving piston plates, wherein the piston plates at the two ends of the module are not paved, the positions at the two ends are used for installing and using the piston module, checking that the radial direction Liang Xiangao, the chord length and the size deviation of the end point of the piston are in the range of design errors, after the size detection and adjustment are finished, welding the piston plates in a weft-wise and radial-direction mode, connecting the piston plates of the module with the radial beams of the piston, and after all other parts are welded, connecting the radial beams of the piston with the weft-wise beams of the piston is cancelled, at the moment, the weft-wise beams of the piston, the radial secondary beams of the piston and the piston plates of the piston are an integral module, hoisting and transferring the piston module, and continuing the assembly work of the next group of modules by using the original two radial beams of the piston;
Step four, checking and adjusting the size of the piston module, checking the radial direction Liang Xianchang of the piston of the drawing, measuring the actual installation size, cutting off the piston radial beam of the piston module with the piston radial beam according to the actual installation size, and dividing the size of the piston radial beam into two ends of the piston radial beam when cutting off, wherein the preparation work before installation can be carried out after the size checking and adjusting of the piston module is completed.
The installation site required by the ground assembly jig frame is required to meet the operation space required by at least one ground assembly jig frame, the site is subjected to hardening treatment so as to ensure the stability of the assembly jig frame, and the hardening treatment method of the site is as follows: and (3) compacting after the site is leveled, and pouring concrete with the thickness of 00mm on the site for hardening.
The height of the jig frame column is controlled to be 500-1750mm, so that the highest point height of the ground assembly module is lower than 1800mm, no high-altitude construction is realized, personnel installation and welding operation are facilitated, after the jig frame column is installed, the jig frame column support is installed, the integral strength of the jig frame is improved, and the integral deformation resistance of the jig frame is improved.
The size of the radial beam of the piston is about 100-200 mm when the radial beam of the piston is manufactured in a blanking mode, the radial beam of the piston is used for welding shrinkage size control, after final assembly is completed, the radial Liang Duoyu parts of the piston are evenly cut off at two ends after size determination is carried out before installation.
After the connection and fixation of the radial jig frame beam and the latitudinal jig frame beam are completed, the flatness of the radial jig frame beam and the latitudinal jig frame beam is retested by a leveling instrument, the whole jig frame is ensured to be kept at the same horizontal plane, and a jig frame column is established at the joint of the radial jig frame beam and the latitudinal jig frame beam.
The piston radial beam is placed on a jig frame joist of the jig frame, fixing is completed after the size of the piston radial beam is determined, then the piston latitudinal beams at two ends of the piston radial beam are installed according to a drawing, the remaining piston latitudinal beams are sequentially installed after fixing is completed, connection fixing and welding of the piston radial beam and the piston latitudinal beams are completed, and finally other piston radial secondary beams are installed and welded.
When the module A is assembled, after the radial beams of the piston, the weft beams of the piston and the radial secondary beams of the piston are assembled and welded, the piston plates are sequentially paved, the piston plates at the two ends of the module are not paved, the positions at the two ends are used for installing and using the piston module, the radial Liang Xiangao of the piston, the chord length and the size deviation of the end point are checked to be within the range of design errors, after the size detection and adjustment are completed, the piston plates are welded in a weft-first radial mode, and the next assembly is carried out after the welding is completed.
When the module B is assembled, the connection part of the piston radial beam and the piston weft beam and the piston plate 0 is only connected without welding.
Compared with the prior art, the invention has the beneficial effects that:
1) The piston is assembled and welded in a modularized manner by adopting a ground assembling process, welding shrinkage deformation allowance is reserved in advance, the chord height and the radius size of the piston can be controlled and adjusted in time after the assembling is completed, effective quality control can be achieved, and therefore safe and stable operation of the piston is ensured.
2) After the whole assembly of ground is completed, the piston module can be installed in a high-altitude mode, so that the traditional high-altitude single component installation mode is changed, the installation speed is improved, the service time of a crane, manpower and the like is shortened, the construction cost is saved, and the economic benefit is improved.
3) The ground is integrally assembled, so that the welding efficiency and quality are improved, the overhead welding work is reduced, the construction difficulty is reduced, the integral installation construction speed is improved, and the overhead operation danger is reduced.
4) The ground modularized assembling mode is adopted, so that the manufacturing and mounting quality is improved, the mounting work is simplified, the working efficiency is improved, the construction danger is reduced, the service cycle of manpower and machinery is further shortened, and the construction cost is reduced.
Drawings
FIG. 1 is a schematic perspective view of a ground assembly jig frame according to an embodiment of the invention;
FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;
FIG. 3 is a schematic plan view of the structure of FIG. 1;
FIG. 4 is a schematic elevational view of FIG. 1;
FIG. 5 is a schematic diagram of a module A in an embodiment of the invention;
FIG. 6 is a schematic diagram of a module B in an embodiment of the invention;
FIG. 7 is a diagram showing the effect of a piston end product of a gas tank according to an embodiment of the present invention;
in the figure: the tire frame comprises a 1-radial tire frame beam, a 2-weft tire frame beam, a 3-tire frame column, a 4-tire frame column support, a 5-tire frame joist, a 6-piston beam limiting clamp, a 7-piston radial beam, an 8-piston weft beam, a 9-piston radial secondary beam and a 10-piston plate.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
The invention relates to a ground assembling method of a cylindrical thin oil tank piston module, which is characterized in that a piston is divided into a plurality of components of a module A and a module B, a ground integral assembling and welding mode is adopted, welding shrinkage deformation allowance is reserved in advance, the chord height and the radius size of the piston can be controlled and adjusted in time after assembling, and the size deviation is controlled within a design error, and the method specifically comprises the following steps:
step one, preparing an assembling site, wherein an installation site required by the ground assembling jig frame is required to meet an operation space required by at least one ground assembling jig frame, the site is subjected to hardening treatment so as to ensure the stability of the assembling jig frame, and the hardening treatment method of the site is as follows: and (3) compacting after the site is leveled, and pouring concrete with the thickness of 400mm on the site for hardening.
Step two, manufacturing an assembled jig frame, wherein the assembling jig frame structure comprises the following steps: radial jig frame beam 1, weft jig frame beam 2, jig frame column 3, jig frame column support 4, jig frame joist 5 and piston beam limiting clamp 6, and the manufacturing steps are as follows:
1) Two radial tire frame beams 1 are paved on a prepared assembly site according to the distance between two adjacent piston main beams;
2) Measuring the flatness of the radial jig frame beams 1 by using a level gauge, installing weft jig frame beams 2 between the two radial jig frame beams 1 according to the distance between the piston weft beam, finishing the fixation of the radial jig frame beams 1 and the weft jig frame beams 2, and rechecking the flatness of the whole jig frame;
3) Setting up a jig frame column 3 at each weft beam position based on the size spacing of the piston weft beams 8, wherein the heights of the jig frame columns 3 are set up according to the order of the chord heights at the positions of the piston weft beams and the heights of the two sides of the piston weft beams, the height interval of the jig frame columns 3 is 500-1750mm, and the jig frame column supports 4 are added in three directions of each jig frame column 3 for reinforcing the upright column strength;
4) And in the range of 150-200mm at the top end of the jig frame column, installing a jig frame joist 5 according to the width of the piston radial beam 7, and installing a piston beam limiting clamp 6 at the end part of the jig frame joist 5 for adjusting and fixing the position of the assembled piston radial beam 7.
The height of the jig frame column 3 is controlled to be 500-1750mm, so that the highest point height of the ground assembly module is lower than 1800mm, no high-altitude construction is realized, personnel installation and welding operation are facilitated, and after the jig frame column 3 is installed, the jig frame column support is installed to improve the integral strength of the jig frame and the integral deformation resistance of the jig frame. The size of the piston radial beam 7 is 100-200 mm more when in blanking and manufacturing, the allowance is reserved for welding shrinkage size control, after final assembly is completed, the redundant parts of the piston radial beam 7 are evenly cut off at the two ends after size determination is carried out before installation. After the connection and fixation of the radial tire frame beam 1 and the latitudinal tire frame beam 2 are completed, the flatness of the radial tire frame beam 1 and the latitudinal tire frame beam 2 is retested by a leveling instrument, the whole tire frame is ensured to be kept at the same horizontal plane, and a tire frame column 3 is arranged at the joint of the radial tire frame beam 1 and the latitudinal tire frame beam 2.
Step three, assembling the piston module on the ground, wherein the piston module component is divided into a module A with a piston radial beam and a module B without the piston radial beam, and the module A and the module B are arranged at intervals to be spliced and welded into a cylindrical thin oil tank piston;
1) The assembly steps of the module A are as follows: the first step: manufacturing a piston radial beam 7 according to the radius and chord height of the piston, wherein the length of the piston radial beam 7 is reserved to be 100-200 mm during manufacturing; and a second step of: the two manufactured piston radial beams 7 are placed on a jig frame joist 5 of a jig frame, after the size of the piston radial beams 7 is determined, fixing is completed, then, the piston weft beams 8 at the two ends of the piston radial beams 7 are installed according to a drawing, after fixing is completed, the rest piston weft beams 8 are sequentially installed, connection fixing and welding of the piston radial beams 7 and the piston weft beams 8 are completed, and finally, other piston radial sub beams 9 are installed and welded; and a third step of: after the installation and welding of the main beams and the secondary beams of the piston are finished, sequentially paving piston plates 9, wherein the piston plates 9 at the two ends of the module are not paved, the positions at the two ends are used for installing and using the piston module, checking that the chord height, chord length and end point size deviation of the radial beam 7 of the piston are within the range of design errors, welding the piston plates 10 in a weft-wise and radial mode after the size detection and adjustment are finished, and transferring the module to carry out next module assembly welding work after the welding is finished; when the module A is assembled, after the radial beams 7, 8 and 9 are assembled and welded, the piston plates 10 are sequentially paved, the piston plates 10 at the two ends of the module are not paved, the positions at the two ends are used for installing and using the piston module, the chord height, chord length and end point size deviation of the radial beams 7 are checked to be within the range of design errors, after the size detection and adjustment are completed, the piston plates are welded in a weft-first radial mode, and the next assembly is carried out after the welding is completed. In the assembling process, the piston radial beam 7 is placed on the jig frame joist 5 of the jig frame, the fixing is completed after the size of the piston radial beam 7 is determined, then the piston weft beams 8 at the two ends of the piston radial beam 7 are installed according to the drawing, the rest piston weft beams 8 are sequentially installed after the fixing is completed, the connection fixing and welding of the piston radial beam 7 and the piston weft beams 8 are completed, and finally other piston radial sub beams 9 are installed and welded.
2) The assembly step of the module B is as follows: the first step: manufacturing a piston radial beam 7 according to the radius and chord height of the piston, wherein the length of the piston radial beam 7 is reserved to be 100-200 mm during manufacturing; and a second step of: the two manufactured piston radial beams 7 are placed on a jig frame joist 5 of a jig frame, after the size of the piston radial beams 7 is determined, fixing is completed, then, the piston weft beams 8 at the two ends of the piston radial beams 7 are installed according to a drawing, after fixing is completed, the rest piston weft beams 8 are sequentially installed, the connection and fixing of the piston radial beams 7 and the piston weft beams 8 are completed, the connection points are not welded, and finally, other piston radial secondary beams 9 are installed and welded; and a third step of: after the installation and welding of the main beams and the secondary beams of the piston are finished, sequentially paving piston plates 10, wherein the piston plates 10 at the two ends of the module are not paved, the positions at the two ends are used for installing and using the piston module, checking that the chord height, chord length and end point size deviation of the radial beams 7 of the piston are within the range of design errors, after the size detection adjustment is finished, welding the piston plates in a weft-wise and radial mode, connecting the piston plates 10 of the module with the radial beams 7 of the piston, not welding, and after all other parts are welded, connecting the radial beams 7 of the piston with the weft-wise beams 8 of the piston is cancelled, at the moment, the weft-wise beams 8 of the piston, the radial secondary beams 9 of the piston and the piston plates 10 of the piston are integrated modules, hoisting and transferring the piston module, and continuing the next group of module assembly work by using the original two radial beams 7 of the piston; when the module B is assembled, the module B is assembled with the radial piston beam 7, only when the module B is assembled, the connecting parts of the radial piston beam 7, the weft piston beam 8 and the piston plate 10 are not welded, and the radial piston beam 7 only plays a limiting role, so that the module B is convenient to assemble with the module A subsequently.
Step four, checking and adjusting the size of the piston module, checking the chord length of the piston radial beam 7 of the drawing, measuring the actual installation size, cutting off part of the piston radial beam 7 of the piston module with the piston radial beam 7 according to the actual installation size, dividing the part of the piston radial beam into two ends of the piston radial beam 7 when cutting off, and preparing before installation after the size checking and adjusting of the piston module is finished.
According to the invention, the cylindrical thin oil tank piston is subjected to modularized segmentation firstly, and then is assembled and welded on the ground, and the welding shrinkage deformation allowance is reserved in advance, so that the chord height and the radius size of the piston can be controlled and adjusted in time after the assembly is completed, the effective quality control can be realized, and the safe and stable operation of the piston is ensured. After the assembly is completed, the piston module can be integrally installed at high altitude, so that the traditional high-altitude single component installation mode is changed, the installation speed is improved, the service time of a crane, manpower and the like is shortened, the construction cost is saved, and the economic benefit is improved. The ground module is assembled, so that the welding efficiency and quality are improved, the high-altitude welding work is reduced, the construction difficulty is reduced, the overall installation construction speed is improved, the high-altitude operation danger is reduced, the service cycle of manpower and machinery is shortened, and the construction cost is remarkably reduced.
The above embodiments are merely specific examples selected for the purpose of illustrating the objects, technical solutions and advantageous effects of the present invention, but should not limit the scope of the present invention, and all modifications, equivalents and improvements made thereto should fall within the scope of the present invention without departing from the spirit and principle of the present invention.
Claims (8)
1. The ground assembling method of the cylindrical thin oil tank piston module is characterized in that the piston is divided into a plurality of component members of a module A and a module B, a ground integral assembling and welding mode is adopted, welding shrinkage deformation allowance is reserved in advance, the chord height and the radius size of the piston can be controlled and adjusted in time after assembling is finished, and the size deviation is controlled within a design error, and the method specifically comprises the following steps:
Step one, preparing an assembling site;
Step two, manufacturing an assembled jig frame, wherein the assembled jig frame structure comprises the following steps: radial jig frame beam (1), latitudinal jig frame beam (2), jig frame column (3), jig frame column support (4), jig frame joist (5), piston beam limit clamping head (6), the manufacturing steps are as follows:
1) Two radial tire frame beams (1) are paved on a prepared assembly site according to the distance between two adjacent piston main beams;
2) Measuring the flatness of the radial jig frame beams (1) by using a level gauge, installing weft jig frame beams (2) between the two radial jig frame beams (1) according to the distance between the piston weft beam, finishing the fixation of the radial jig frame beams (1) and the weft jig frame beams (2), and rechecking the flatness of the whole jig frame;
3) Setting up a tire frame column (3) at each weft beam position based on the size spacing of the piston weft beams (8), wherein the height of the tire frame column (3) is set up according to the order of the middle height and the two sides of the chord height at the position of the piston weft beams, the height interval of the tire frame column (3) is 500-1750mm, and the tire frame column supports (4) are added in three directions of each tire frame column (3) for reinforcing the upright column strength;
4) In the range of 150-200mm at the top end of the jig frame column, a jig frame joist (5) is arranged according to the width of the piston radial beam (7), and a piston beam limiting clamp head (6) is arranged at the end part of the jig frame joist (5) and used for adjusting and fixing the position of the assembled piston radial beam (7);
Step three, assembling the piston module on the ground, wherein the piston module component is divided into a module A with a piston radial beam and a module B without the piston radial beam, and the module A and the module B are arranged at intervals to be spliced and welded into a cylindrical thin oil tank piston;
1) The assembly steps of the module A are as follows:
The first step: manufacturing a radial piston beam (7) according to the radius and chord height of the piston, wherein the length of the radial piston beam (7) is reserved to be 100-200 mm during manufacturing;
And a second step of: the two manufactured piston radial beams (7) are placed on a jig frame joist (5) of a jig frame, after the size of the piston radial beams (7) is determined, fixing is completed, then, the piston weft beams (8) at the two ends of the piston radial beams (7) are installed according to a drawing, after fixing is completed, the rest piston weft beams (8) are sequentially installed, connection fixing and welding of the piston radial beams (7) and the piston weft beams (8) are completed, and finally, other piston radial secondary beams (9) are installed and welded;
And a third step of: after the installation and welding of the main beams and the secondary beams of the piston are finished, sequentially paving piston plates (10), wherein the piston plates (10) at two ends of the module are not paved, the positions at two ends are used for installing and using the piston module, checking that the chord height, chord length and end point size deviation of the radial beam (7) of the piston are within the range of design errors, welding the piston plates (10) in a weft-wise and radial mode after the size detection and adjustment are finished, and transferring the module to carry out next group of module assembly welding work after the welding is finished;
2) The assembly step of the module B is as follows:
The first step: manufacturing a radial piston beam (7) according to the radius and chord height of the piston, wherein the length of the radial piston beam (7) is reserved to be 100-200 mm during manufacturing;
And a second step of: the two manufactured piston radial beams (7) are placed on a jig frame joist (5) of a jig frame, after the size of the piston radial beams (7) is determined, fixing is completed, then, the piston weft beams (8) at the two ends of the piston radial beams (7) are installed according to a drawing, after fixing is completed, the rest piston weft beams (8) are sequentially installed, the connection and fixing of the piston radial beams (7) and the piston weft beams (8) are completed, the connection points are not welded, and finally, other piston radial secondary beams (9) are installed and welded;
And a third step of: after the installation and welding of the main beams and the secondary beams of the piston are finished, sequentially paving piston plates (10), wherein the piston plates (10) at the two ends of the module are not paved, the positions at the two ends are used for installing and using the piston module, checking that the chord height, chord length and end point size deviation of the radial beams (7) of the piston are within the range of design errors, after the size detection and adjustment are finished, welding the piston plates in a weft-wise and radial mode, connecting the piston plates (10) of the module with the radial beams (7) of the piston, and after all other parts are welded, connecting the radial beams (7) of the piston with the weft-wise beams (8) of the piston are cancelled, and at the moment, the weft-wise beams (8) of the piston, the radial secondary beams (9) of the piston and the piston plates (10) of the piston are an integral module, hoisting and transferring the piston module, and continuing the assembly work of the next group of modules by using the original two radial beams (7) of the piston;
step four, checking and adjusting the size of the piston module, checking the chord length of a piston radial beam (7) of a drawing, measuring the actual installation size, cutting off the part of the piston radial beam (7) of the piston module with the piston radial beam (7) according to the actual installation size, dividing the part of the piston radial beam into two ends of the piston radial beam (7) when cutting off, and preparing the piston module before installation after the size checking and adjusting of the piston module is finished.
2. The ground assembling method of a cylinder-shaped oil tank piston module according to claim 1, wherein an installation site required by the ground assembling jig frame is required to meet an operation space required by at least one ground assembling jig frame, the site is hardened to ensure stability of the assembling jig frame, and the hardening method of the site is as follows: and (3) compacting after the site is leveled, and pouring concrete with the thickness of 400mm on the site for hardening.
3. The ground assembling method of the cylindrical thin oil tank piston module according to claim 1, wherein the height of the jig frame column (3) is controlled to be 500-1750mm, so that the highest point height of the ground assembling module is lower than 1800mm, no high-altitude construction is realized, personnel installation and welding operation are facilitated, and after the jig frame column (3) is installed, the jig frame column support is installed for improving the integral strength of the jig frame and the integral deformation resistance of the jig frame.
4. The ground assembling method of the cylindrical thin oil tank piston module according to claim 1, wherein the size of the piston radial beam (7) is 100-200 mm more when the piston radial beam is manufactured in a blanking mode, the allowance is used for welding shrinkage size control, after final assembling is completed, after size determination is carried out before mounting, redundant parts of the piston radial beam (7) are evenly removed at two ends.
5. The ground assembling method of the cylindrical thin oil tank piston module according to claim 1, wherein after the radial jig frame beam (1) and the latitudinal jig frame beam (2) are connected and fixed, flatness of the radial jig frame beam (1) and the latitudinal jig frame beam (2) is retested by a leveling instrument, the whole jig frame is kept at the same horizontal plane, and a jig frame column (3) is established at the joint of the radial jig frame beam (1) and the latitudinal jig frame beam (2).
6. The ground assembling method of the cylindrical thin oil tank piston module according to claim 1, wherein the piston radial beam (7) is placed on a jig frame joist (5) of a jig frame, fixing is completed after the size of the piston radial beam (7) is determined, then the piston latitudinal beams (8) at two ends of the piston radial beam (7) are installed according to a drawing, the remaining piston latitudinal beams (8) are sequentially installed after fixing is completed, connection fixing and welding of the piston radial beam (7) and the piston latitudinal beams (8) are completed, and finally other piston radial sub-beams (9) are installed and welded.
7. The method for assembling the cylindrical thin oil tank piston module on the ground according to claim 1, wherein when the module A is assembled, after the radial beams (7, 8) and 9 are assembled and welded, the piston plates (10) are sequentially paved, the piston plates (10) at the two ends of the module are not paved, the positions at the two ends are used for installing the piston module, the chord height, chord length and end point size deviation of the radial beams (7) are checked to be within the range of design errors, after the size detection and adjustment are completed, the piston plates are welded in a weft-to-radial mode, and the next assembly is performed after the welding is completed.
8. The method for assembling the cylindrical lean oil tank piston module on the ground according to claim 1, wherein when the module B is assembled, the connection parts of the piston radial beam (7), the piston weft beam (8) and the piston plate 10 are only connected without welding.
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