CN105952228B - A kind of interior tank deck is the double-layer storage tank construction method of flat furred ceiling - Google Patents

A kind of interior tank deck is the double-layer storage tank construction method of flat furred ceiling Download PDF

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Publication number
CN105952228B
CN105952228B CN201610268913.0A CN201610268913A CN105952228B CN 105952228 B CN105952228 B CN 105952228B CN 201610268913 A CN201610268913 A CN 201610268913A CN 105952228 B CN105952228 B CN 105952228B
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tank
furred ceiling
siding
interior
construction
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CN105952228A (en
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王泳文
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China National Chemical Engineering Third Construction Co Ltd
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China National Chemical Engineering Third Construction Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02Containers for fluids or gases; Supports therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02Containers for fluids or gases; Supports therefor
    • E04H7/04Containers for fluids or gases; Supports therefor mainly of metal

Abstract

The invention discloses the double-layer storage tank construction method that a kind of interior tank deck is flat furred ceiling, it first carries out inner canister collar siding, flat furred ceiling and the installation of outer tank vault, the fliping lifting for being then carried out at the same time the flat furred ceiling of inner canister and interior tank shell with outer tank dome plate;After after interior tank shell, installation is complete, upside-down mounting outer tank siding in order, after the heat insulation layer construction inside, between outer tank bottom, finally carry out in tank bottom mat formation.The construction method can effectively improve construction efficiency, shorten construction period, reduce the difficulty that Inner tank materials are had bad luck, and reduce construction cost.

Description

A kind of interior tank deck is the double-layer storage tank construction method of flat furred ceiling
Technical field
The present invention relates to a kind of mounting technique of double-layer storage tank, more particularly to a kind of interior tank deck is the double-layer storage tank of flat furred ceiling Construction method.
Background technology
Double-layer storage tank is widely used in the storage of the cryogenic liquids such as liquid oxygen, liquid nitrogen, liquefied petroleum gas and ethene.It is large-scale low It is flat ceiling structure that warm double-layer storage tank, which is typically designed structure, its outer tank is vault construction, and Inner tanks are flat-tope structure, and Inner tanks flat-top is used Sunpender is hung on outer tank vault;Its construction technical requirement is high, and difficulty of construction is big.
In existing construction technology, frequently with traditional storage tank inversion technology, i.e. then first inverted construction outer tank, then inverted construction The method of Inner tanks is constructed one by one, and the flat furred ceiling of Inner tanks of finally constructing, its difficulty of construction is big, low construction efficiency, long construction period, to work Cheng Jindu has a great influence, meanwhile, Inner tank materials have bad luck that there is also very big difficulty into tank.
The content of the invention
The technical problems to be solved by the invention are to provide the double-layer storage tank construction method that a kind of interior tank deck is flat furred ceiling, should Construction method can effectively improve construction efficiency, shorten construction period, reduce the difficulty that Inner tank materials are had bad luck, and reduction is constructed into This.
To achieve the above object, the present invention provides following technical solution:A kind of interior tank deck is the double-layer storage tank of flat furred ceiling Construction method, including the construction of inside and outside tank bottom, the flat furred ceiling of inner canister, the construction of outer tank dome plate and interior tank shell, outer tank skin The construction of plate, comprises the following steps:
1), blanking, prefabricated inside and outside tank bottom, inside and outside tank shell, the flat furred ceiling of inner canister, outer tank dome plate and parts;
2) outer tank bottom, is assembled;
3) it is on outer tank bottom that the flat furred ceiling of Inner tanks is prefabricated after, outer tank bottom has assembled, then by outer tank siding positioned at top 1~2 band at circle position installs, and installs pressure-resistent ring on mounted outer tank siding;
4) three circle scaffolds, are set up on the flat furred ceiling of inner canister, the bearing support of circumferential direction beam when being installed as outer tank dome plate, three The concentric of scaffold is enclosed, and diameter is different;
5), fliping lifting mast is installed between interior outer tank at interlayer, lifting mast is uniformly distributed along inner canister outer ring, and In the one circle packing of inner ring installation of the outer tank siding for 1~2 band for having completed installation, packing uses channel steel, positioned at same circle Using being welded and fixed, every joint adds three pieces of reinforcement blocks for connection between two neighboring packing;Each fliping lifting mast frock In mast and outer tank bottom between plus one piece of backing plate be welded and fixed, mast top sets circumferential pull rod and radial direction pull rod, ring Adjacent mast upper end is connected to pull rod, mast upper end is connected by radial direction pull rod with tank Outer Bottom Plating, radial direction pull rod and ground Angle is less than 60 °;
6), the scaffold of the pressure-resistent ring of tank shell and the flat furred ceiling of inner canister is supporting in addition, installs adding on outer tank dome plate Gu steel construction, the outer tank siding installation for making outer tank dome plate and having completed 1~2 band of installation is fixed;
7) lifting of outer tank dome plate, is driven using fliping lifting mast frock lifting packing, adjusts outer tank dome plate and interior The distance between flat furred ceiling of tank, the flat furred ceiling of inner canister is connected fix after regulating using falsework with outer tank dome plate;
8), using fliping lifting mast frock successively fliping lifting, assembling inner canister respectively with siding, in each band wall of lifting inner canister During plate, the flat furred ceiling of inner canister and interior tank shell, outer tank dome plate can be carried out at the same time fliping lifting;Before installation inner canister respectively band siding, In corresponding one outer ring with siding, packing is set;
9) fliping lifting mast frock fliping lifting, each band siding of assembling outer tank successively, are reused;It is each in installation outer tank Before band siding, packing is set in corresponding one inner ring with siding;
10) after, installation is complete after interior tank shell, outer tank dome plate and inner canister are adjusted by fliping lifting mast frock again The distance between flat furred ceiling, falsework is changed into pull rod I after regulating, and encircles the flat furred ceiling of inner canister and outer tank by pull rod I Top plate connection fixes, the pull rod II that each fliping lifting mast frock top installation is connected with interior tank shell, and pull rod II is another End sets support pulley, and the gap between the length of pull rod II and interior tank shell, outer tank siding is adapted;
11), inside and outside can body is integrally lifted after outer tank all construction, tank bottom lower part Cold-keeping Layer in progress Construction, then carry out in tank bottom assembling;
12) it is, overall to fall inside and outside can body, improve interior tank shell, the angle welding of outer tank siding and inside and outside tank bottom;
13) fliping lifting mast frock, is removed;
14), each mouth of pipe, manhole and other parts are installed;
15), inspect for acceptance.
Preferably, inside, before the assembling of outer tank bottom, cross centre line should be marked on the basis of, and by the requirement of material cutting plan The position line where marking every piece of plate long side with chalk line, assembling bed board should be unfolded to carry out from centre to both sides.
Preferably, fliping lifting frock uses electric block.
Preferably, before the installation of interior tank shell, interior tank bottom, tank inner connecting tube, annex are had bad luck whole to stacking in tank one Together, in accordingly adjustment stowed location when tank bottom Cold-keeping Layer is constructed.
Preferably, before inside and outside tank shell is installed, datum mark is set in respective siding installation site, as respective siding Built-up foundation.
Preferably, before the assembling of outer tank dome plate, the sideline of each plate, dome plate overlap joint are first angularly pulled on dome plate The margin of error of amount is less than 5mm;Outer tank dome plate opens up hole at lifting mast, treats that the lifting of tank body whole height is arrived and is more than mast top Again by bored closure during portion's height.
Preferably, after the flat furred ceiling of inner canister and outer tank dome plate is connected using falsework, outer tank dome plate Inner side sets a circle baffle, and the diameter of circumference is consistent with the internal diameter of inner canister where baffle.
Using above-mentioned technical proposal, relative to conventional construction method, construction operation environment is improved, it is prefabricated to increase tank body Depth, improves construction efficiency, shortens construction period, reduce working at height, reduce security risk, improve safety coefficient, Construction tool secondary installing projects amount is reduced, avoids the pollution to stainless steel Inner tanks, the finished product protection effectively improved Quality, reduces construction cost.And anti-deformation measure can conveniently be taken to outer tank tank deck, improve tank deck Forming Quality.
Brief description of the drawings
Fig. 1 is the interim lifting schematic diagram between flat furred ceiling and outer tank dome plate in the present invention;
Fig. 2 is tank shell construction hoisting schematic diagram in the present invention;
Fig. 3 is outer tank siding construction hoisting schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, by the description of the embodiment, the present invention will be further described:
As shown in Figure 1, 2, 3, a kind of interior tank deck of the present invention is the double-layer storage tank construction method of flat furred ceiling, including inside and outside tank The construction of bottom plate, the construction and interior tank shell 5, the construction of outer tank siding 6 of the flat furred ceiling 3 of inner canister, outer tank dome plate 4, including with Lower step:
1), blanking, the flat furred ceiling 3 of prefabricated inside and outside tank bottom, interior tank shell 5, outer tank siding 6, inner canister, outer tank dome plate 4 with And parts.
2) outer tank bottom, is assembled.
3) it is on outer tank bottom that the flat furred ceiling 3 of Inner tanks is prefabricated after, outer tank bottom has assembled, then outer tank siding 6 is located at 1~2 band at collar position installs, and installs pressure-resistent ring on mounted outer tank siding 6.
4) three circle scaffolds, are set up on the flat furred ceiling 3 of inner canister, the bearing support of circumferential direction beam when being installed as outer tank dome plate 4, Three enclose the concentric of scaffolds, and diameter is different.
5), fliping lifting mast 7 is installed between interior outer tank, fliping lifting mast 7 connects electronic using jack at interlayer Cucurbit 2.Lifting mast 7 is uniformly distributed along inner canister outer ring, and the inner ring of the outer tank siding 6 in 1~2 band for having completed installation The circle packing of installation one, packing use channel steel, and using being welded and fixed, every connects for connection between the two neighboring packing of same circle Add three pieces of reinforcement blocks at head, prevent joint cracking or deformation.Mast 7 and outer tank bottom in each fliping lifting mast frock it Between plus one piece of backing plate be welded and fixed, increase the contact area between mast 7 and outer tank bottom, reduce the pressure of external tank bottom, The top of mast 7 sets circumferential pull rod 8 and radial direction pull rod 9, circumferential pull rod 8 that adjacent mast upper end is connected, and radial direction pull rod 9 will Mast upper end is connected with outer tank bottom, and radial direction pull rod 9 is less than 60 ° with ground angle.Mast 7 is equipped with motor-driven chain hoist, electronic Jack is hung on the lifting lug of mast 7, and the hanging of motor-driven chain hoist is hooked on the hanging ring of packing, is connect next holding motor-driven chain hoist and is in Vertical state, motor-driven chain hoist switch board are positioned over bottom plate centre, and circumferentially pull rod is laid with motor-driven chain hoist power cord, with control Cabinet connects.
6), the scaffold of the pressure-resistent ring of tank shell 6 and the flat furred ceiling 3 of inner canister is supporting in addition, is installed on outer tank dome plate 4 Steel construction is reinforced, the installation of outer tank siding 4 for making outer tank dome plate 4 and having completed 1~2 band of installation is fixed, to increase outer tank The rigidity of dome plate 4.
7), drive outer tank dome plate 4 to be lifted using fliping lifting mast frock lifting packing, adjust 4 He of outer tank dome plate The distance between flat furred ceiling 3 of inner canister, is connected the flat furred ceiling 3 of inner canister and outer tank dome plate 4 admittedly using falsework after regulating Set.After the flat furred ceiling 3 of inner canister and outer tank dome plate 4 is connected using falsework, the inner side of outer tank dome plate 4 is set One circle baffle, the diameter of circumference is consistent with the internal diameter of inner canister where baffle, prevents from sliding between outer tank dome plate 4 and inner canister;Outside Before tank dome plate 4 assembles, the sideline of each plate is first angularly pulled on dome plate, the margin of error of dome plate amount of lap is less than 5mm; Outer tank dome plate 4 opens up hole at lifting mast 7, when the lifting of tank body whole height to will be opened again when being more than 7 overhead height of mast Close in hole.
8), using fliping lifting mast frock successively fliping lifting, assembling inner canister respectively with siding, in each band wall of lifting inner canister During plate, the flat furred ceiling 3 of inner canister and interior tank shell 5, outer tank dome plate 4 can be carried out at the same time fliping lifting;In installation inner canister respectively with siding Before, in corresponding one outer ring with siding, packing is set.
9) fliping lifting mast frock fliping lifting, each band siding of assembling outer tank successively, are reused;It is each in installation outer tank Before band siding, packing is set in corresponding one inner ring with siding.
10) after, installation is complete after interior tank shell 5, outer tank dome plate 4 and interior is adjusted by fliping lifting mast frock again The distance between flat furred ceiling 3 of tank, falsework is changed into pull rod I after regulating, and makes the flat furred ceiling 3 of inner canister and outer by pull rod I The connection of tank dome plate 4 fixes, and then change the radial direction pull rod 9 of each fliping lifting mast into one end is connected with interior tank shell 5 Pull rod II 1, for fixed mast 7, II 1 other end of pull rod sets support pulley, and for reducing outer tank lifting resistance, raising carries Rise stability.
11), inside and outside can body is integrally lifted after outer tank all construction, tank bottom lower part Cold-keeping Layer in progress Construction, then carry out in tank bottom assembling.
12) it is, overall to fall inside and outside can body, improve interior tank shell 5, the angle welding of outer tank siding 6 and inside and outside tank bottom.
13) fliping lifting mast frock, is removed.
14), each mouth of pipe, manhole and other parts are installed.
15), inspect for acceptance.
Including the present invention, before the assembling of outer tank bottom, cross centre line should be marked on the basis of, and use by the requirement of material cutting plan Chalk line marks the position line where every piece of plate long side, and assembling bed board should be unfolded to carry out from centre to both sides.To avoid tank body from closing Afterwards, inner canister prefabricated component has bad luck difficulty, needs first lift tank deck, before siding is formally installed, by interior tank bottom, tank inner connecting tube, attached Part is had bad luck to stacking in tank one neatly, in accordingly adjustment stowed location when tank bottom Cold-keeping Layer is constructed.The tank shell in installation 5th, before outer tank siding 6, datum mark, the built-up foundation as respective siding are set in respective siding installation site.
The present invention improves construction operation environment, increases the prefabricated depth of tank body, raising is applied relative to conventional construction method Work efficiency rate, shorten construction period, reduces working at height, reduces security risk, improves safety coefficient, reduces construction tool Secondary installing projects amount, avoids the pollution to stainless steel Inner tanks, the finished product protection quality effectively improved, reduces construction Cost.And anti-deformation measure can conveniently be taken to outer tank tank deck, improve tank deck Forming Quality.
Above-described is only the preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention Protection domain.

Claims (7)

1. a kind of interior tank deck is the double-layer storage tank construction method of flat furred ceiling, include construction, the flat furred ceiling of inner canister of inside and outside tank bottom (3), the construction of outer tank dome plate (4) and interior tank shell (5), the construction of outer tank siding (6), it is characterised in that including following Step:
1), blanking, prefabricated inside and outside tank bottom, interior tank shell (5), outer tank siding (6), the flat furred ceiling of inner canister (3), outer tank dome plate (4) and parts;
2) outer tank bottom, is assembled;
3) it is on outer tank bottom that the flat furred ceiling of Inner tanks (3) is prefabricated after, outer tank bottom has assembled, then outer tank siding (6) is located at 1~2 band at collar position installs, and installs pressure-resistent ring on mounted outer tank siding (6);
4) three circle scaffolds, are set up on the flat furred ceiling of inner canister (3), the bearing support of circumferential direction beam when being installed as outer tank dome plate (4), Three enclose the concentric of scaffolds, and diameter is different;
5) fliping lifting mast (7), is installed between interior outer tank at interlayer, lifting mast (7) is uniformly distributed along inner canister outer ring, and And the one circle packing of inner ring installation of the outer tank siding (6) in 1~2 band for having completed installation, packing uses channel steel, positioned at same Using being welded and fixed, every joint adds three pieces of reinforcement blocks for connection between the two neighboring packing of circle;Each fliping lifting mast Between mast (7) and outer tank bottom in frock plus one piece of backing plate is welded and fixed, set at the top of mast (7) circumferential pull rod (8) with And adjacent mast upper end is connected by radial direction pull rod (9), circumferential pull rod (8), radial direction pull rod (9) is by mast upper end and outer tank bottom It is connected, radial direction pull rod (9) is less than 60 ° with ground angle;
6), the scaffold of the pressure-resistent ring of tank shell (6) and the flat furred ceiling of inner canister (3) is supporting in addition, is installed on outer tank dome plate (4) Reinforcing steel construction, make outer tank dome plate (4) and completed installation 1~2 band outer tank siding (6) installation fix;
7), using fliping lifting mast frock lifting packing drive outer tank dome plate (4) lifting, adjust outer tank dome plate (4) and The distance between flat furred ceiling of inner canister (3), uses falsework by the flat furred ceiling of inner canister (3) and outer tank dome plate (4) after regulating Connection fixes, and inside and outside tank deck forms entirety so that the flat furred ceiling of inner canister (3) and interior tank shell (5), outer tank dome plate (4) can be same Shi Jinhang fliping liftings;
8), using fliping lifting mast frock successively fliping lifting, assembling inner canister respectively with siding, in each band siding of lifting inner canister When, the flat furred ceiling of inner canister (3) and interior tank shell (5), outer tank dome plate (4) can be carried out at the same time fliping lifting;In installation each band of inner canister Before siding, packing is set in corresponding one outer ring with siding;
9) fliping lifting mast frock fliping lifting, each band siding of assembling outer tank successively, are reused;In installation outer tank respectively with wall Before plate, packing is set in corresponding one inner ring with siding;
10) after, installation is complete after interior tank shell (5), outer tank dome plate (4) and interior is adjusted by fliping lifting mast frock again The distance between flat furred ceiling of tank (3), falsework is changed into pull rod I after regulating, and makes the flat furred ceiling of inner canister (3) by pull rod I With outer tank dome plate (4) connection fix, then by the radial direction pull rod (9) of each fliping lifting mast frock change into one end with it is interior The pull rod II (1) of tank shell (5) connection, pull rod II (1) other end set support pulley, the length of pull rod II (1) and interior tank skin Gap between plate (5), outer tank siding (6) is adapted;
11), inside and outside can body is integrally lifted after outer tank all construction, tank bottom lower part Cold-keeping Layer is constructed in progress, Then the assembling of tank bottom in carrying out;
12) it is, overall to fall inside and outside can body, improve interior tank shell (5), the angle welding of outer tank siding (6) and inside and outside tank bottom;
13) fliping lifting mast frock, is removed;
14), each mouth of pipe, manhole and other parts are installed;
15), inspect for acceptance.
2. interior tank deck according to claim 1 is the double-layer storage tank construction method of flat furred ceiling, it is characterised in that inside and outside Before tank bottom assembling, cross centre line should be marked on the basis of, and every piece of plate long side institute is marked with chalk line by the requirement of material cutting plan The position line, assembling bed board should be unfolded from centre to both sides progress.
3. interior tank deck according to claim 1 is the double-layer storage tank construction method of flat furred ceiling, it is characterised in that the upside-down mounting Lifting frock uses electric block (2).
4. interior tank deck according to claim 3 is the double-layer storage tank construction method of flat furred ceiling, it is characterised in that in interior tank skin Before plate (5) installation, interior tank bottom, tank inner connecting tube, annex are had bad luck to stacking in tank one neatly, when tank bottom Cold-keeping Layer is constructed In accordingly adjustment stowed location.
5. interior tank deck according to claim 4 is the double-layer storage tank construction method of flat furred ceiling, it is characterised in that in installation Before tank shell (5), outer tank siding (6), datum mark, the built-up foundation as respective siding are set in respective siding installation site.
6. interior tank deck according to claim 1 is the double-layer storage tank construction method of flat furred ceiling, it is characterised in that is encircleed in outer tank Before top plate (4) assembling, the sideline of each plate is first angularly pulled on dome plate, the margin of error of dome plate amount of lap is less than 5mm;Outside Tank dome plate (4) lifting mast (7) place open up hole, when tank body whole height lifting to when being more than mast (7) overhead height again By bored closure.
7. interior tank deck according to claim 6 is the double-layer storage tank construction method of flat furred ceiling, it is characterised in that is faced in use When stent the flat furred ceiling of inner canister (3) and outer tank dome plate (4) are connected after, the inner side of outer tank dome plate (4) sets a circle gear Plate, the diameter of circumference is consistent with the internal diameter of inner canister where baffle.
CN201610268913.0A 2016-04-26 2016-04-26 A kind of interior tank deck is the double-layer storage tank construction method of flat furred ceiling Active CN105952228B (en)

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CN106516982B (en) * 2016-10-21 2018-02-13 中国化学工程第六建设有限公司 The lifting system and application method of upside-down construction storage tank
CN108678388B (en) * 2018-05-05 2020-11-13 十四冶建设集团云南安装工程有限公司 Short mast multi-point integral lifting construction method for large-capacity circular storage tank
CN110893520A (en) * 2019-11-29 2020-03-20 中石化第四建设有限公司 Storage tank inversion method
CN113145995A (en) * 2021-04-30 2021-07-23 中国化学工程第十四建设有限公司 Construction method suitable for aluminum ceiling of large-scale full-capacity low-temperature storage tank

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