CN107882339B - Construction method of large all-steel structure type indirect cooling tower - Google Patents
Construction method of large all-steel structure type indirect cooling tower Download PDFInfo
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- CN107882339B CN107882339B CN201711082436.XA CN201711082436A CN107882339B CN 107882339 B CN107882339 B CN 107882339B CN 201711082436 A CN201711082436 A CN 201711082436A CN 107882339 B CN107882339 B CN 107882339B
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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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Abstract
The invention discloses a construction method of a large all-steel structure type indirect cooling tower, which comprises the following steps: assembling the triangular supports and the widening platforms → pre-installing the peripheral guard plates → installing the lower cone section and the widening platforms → installing the two groups of triangular supports of the lower cone section and the rib plates between the two groups of widening platforms → installing the upper cylinder section and completely installing the aluminum containment plate of the upper cylinder section → installing the rib plates between the two groups of triangular supports of the upper cylinder section. By the construction method, the construction of the all-steel structural type indirect cooling tower can be realized.
Description
Technical Field
The invention relates to a construction technology of an indirect cooling tower, in particular to a construction method of a large indirect cooling tower in a full-steel structure form.
Background
At present, the structure of the indirect cooling tower usually comprises a steel structure part and a concrete pouring part, and the indirect cooling tower with an all-steel structure is generally assembled by triangular meshes, reinforcing rings, widening plates and an outer aluminum protection plate. Compared with the indirect cooling tower with the traditional structure, the indirect cooling tower with the all-steel structure has higher strength, but the indirect cooling tower with the all-steel structure has no construction precedent in China, so a set of feasible construction scheme is needed to realize the installation of the indirect cooling tower with the all-steel structure.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a construction method of a large all-steel structure type indirect cooling tower, so as to facilitate the construction of the all-steel structure type indirect cooling tower.
In order to achieve the above purpose, the present invention provides the following technical solutions: a construction method of a large all-steel structure type indirect cooling tower comprises the following steps:
1) assembling and splicing the lower cone section and the upper cylinder section of the indirect cooling tower, the reinforcing ring and the tripod on the ground through a hoisting machine;
2) assembling and splicing the trapezoidal bracket, the truss and the purline of the indirect cooling tower widening platform on the ground through a hoisting machine;
3) on the ground, the pre-installation work of the lower cone section, the upper cylinder section and the outer peripheral aluminum protection plate of the broadening platform of the indirect cooling tower is manually carried out;
4) mounting work of the lower cone section of the indirect cooling tower and the widening platform is carried out through a crawler crane, and meanwhile, complete mounting of the peripheral aluminum protection plate at the corresponding position is completed;
5) mounting two groups of tripods of the lower cone section of the indirect cooling tower and rib plates between two groups of broadening platforms by a crawler crane;
6) mounting the upper cylindrical section of the indirect cooling tower and completely mounting an enclosure aluminum plate of the upper cylindrical section by using two tower cranes;
7) and (4) carrying out installation work of rib plates between two sets of tripods in the upper cylindrical section of the indirect cooling tower through two tower cranes.
Preferably, before the tripod is assembled and spliced, the assembling mould of the tripod is welded.
Preferably, the outer aluminum shield plates are fastened by using M6 bolts or blind rivets.
Preferably, the two tower cranes are both distributed in the indirect cooling tower, and the two tower cranes are double-rate tower cranes.
By adopting the technical scheme, the installation of the lower cone section, the upper cylinder section, the widening platform and the outer peripheral aluminum protection plate of the indirect cooling tower can be realized, so that the installation of the whole indirect cooling tower with the all-steel structure is completed.
Detailed Description
The invention discloses a construction method of a large all-steel structure type indirect cooling tower, which comprises the following steps:
1) assembling and splicing the lower cone section and the upper cylinder section of the indirect cooling tower, the reinforcing ring and the tripod on the ground through a hoisting machine;
2) assembling and splicing the trapezoidal bracket, the truss and the purline of the indirect cooling tower widening platform on the ground through a hoisting machine;
3) on the ground, the pre-installation work of the lower cone section, the upper cylinder section and the outer peripheral aluminum protection plate of the broadening platform of the indirect cooling tower is manually carried out;
4) mounting work of the lower cone section of the indirect cooling tower and the widening platform is carried out through a crawler crane, and meanwhile, complete mounting of the peripheral aluminum protection plate at the corresponding position is completed;
5) mounting two groups of tripods of the lower cone section of the indirect cooling tower and rib plates between two groups of broadening platforms by a crawler crane;
6) mounting the upper cylindrical section of the indirect cooling tower and completely mounting an enclosure aluminum plate of the upper cylindrical section by using two tower cranes;
7) and (4) carrying out installation work of rib plates between two sets of tripods in the upper cylindrical section of the indirect cooling tower through two tower cranes.
During specific construction, the assembling and splicing work of the lower cone section, the upper cylinder section and the reinforcing ring tripod of the indirect cooling tower can be simultaneously completed on the ground, and the process is as follows.
(1) Mounting of tripod on lower cone section and upper cylinder section
(a) And (3) selecting a triangular frame member assembling site outside the indirect cooling tower mounting site, and carrying out member assembling work by utilizing hoisting equipment such as a truck crane or a gantry crane. Before assembly, according to the design requirements of tripod assembly construction, arranging an assembly mould of the tripod, hoisting a component at a corresponding position on the upper part of the mould for assembly, and checking and accepting to be qualified;
(b) transporting the single tripod qualified in assembly and acceptance to an installation site, and hoisting the purlines spliced in advance to the upper parts of the tripods by using a crane to assemble the purlines;
(c) after the purlines of the single tripod are assembled, mounting work of the outer enclosure aluminum plates is carried out on the purlines, wherein the outer enclosure aluminum plates are fixed with the purlines by adopting self-tapping screws, and the outer enclosure aluminum plates are fixed by adopting M6 bolts or self-plugging rivets;
(d) after the outer enclosure aluminum plate is installed and is checked to be qualified, the outer enclosure aluminum plate is transported to a hoisting position and hoisted in place by a crane, wherein the lower cone section is hoisted by a crawler crane, the upper cylinder section is hoisted by two tower cranes, the two tower cranes are both distributed in the intercooling tower, and the two tower cranes are double-rate tower cranes;
(e) after the same layer of tripod is hoisted, welding operation at the high position of the tripod is carried out by utilizing a tool hanger, a mounting hanger, a welding operation shed and the like, so that the mounting work of the layer of tripod is completed;
(f) hoisting the floor spliced on the ground to a mounting position between two tripods, and mounting the floor, wherein the splicing of the floor is fixed by using a self-plugging rivet, and the floor and an aluminum plate of the tripod are fixed by using an M6 bolt;
(g) finishing the installation work of the tripod of the cost layer;
(h) and by analogy, the installation work of the 5-layer tripod of the lower cone section and the installation work of the 13-layer tripod of the upper cylindrical section are carried out.
(2) Mounting of widening platforms
(a) And selecting an assembling site near the installation of the widening platform, and assembling the widening platform components by using a crane. Before assembly, an assembly platform of a trapezoidal bracket and a truss is arranged according to the design requirement of a widening platform, and the work of assembling parts is carried out;
(b) assembling the spliced trapezoidal platform and the truss on a combined platform into a single widening platform, and checking and accepting;
(c) carrying out ground splicing work of the drainage ditch, and assembling the drainage ditch outside the single widening platform after finishing the ground splicing work;
(d) mounting an outer aluminum protecting plate on the upper part of the tested and accepted broadening platform, wherein the outer aluminum protecting plate is fixed with the purline by adopting tapping screws, and the outer aluminum protecting plate is fixed by adopting M6 bolts or blind rivets;
(e) after the outer enclosure aluminum plate is installed and is checked to be qualified, hoisting the single widening platform by using the crawler crane;
(f) after the widening platform is hoisted, welding the widening platform by utilizing a mounting rack, a welding rack and the like to finish the mounting work of the widening platform;
(g) hoisting the floor after ground splicing to an installation position between two widening platforms, and installing the floor, wherein the floor is spliced and fixed by using a self-plugging rivet, and the floor and a tripod aluminum plate are fixed by using an M6 bolt;
(h) and finishing the installation work of the widening platform.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (4)
1. A construction method of a large all-steel structure type indirect cooling tower is characterized by comprising the following steps:
1) assembling and splicing the lower cone section and the upper cylinder section of the indirect cooling tower, the reinforcing ring and the tripod on the ground through a hoisting machine;
2) assembling and splicing the trapezoidal bracket, the truss and the purline of the indirect cooling tower widening platform on the ground through a hoisting machine;
3) on the ground, the pre-installation work of the lower cone section, the upper cylinder section and the outer peripheral aluminum protection plate of the broadening platform of the indirect cooling tower is manually carried out;
4) mounting work of the lower cone section of the indirect cooling tower and the widening platform is carried out through a crawler crane, and meanwhile, complete mounting of the peripheral aluminum protection plate at the corresponding position is completed;
5) mounting two groups of tripods of the lower cone section of the indirect cooling tower and rib plates between two groups of broadening platforms by a crawler crane;
6) mounting the upper cylindrical section of the indirect cooling tower and completely mounting an enclosure aluminum plate of the upper cylindrical section by using two tower cranes;
7) and (4) carrying out installation work of rib plates between two sets of tripods in the upper cylindrical section of the indirect cooling tower through two tower cranes.
2. The method of claim 1, wherein the assembling jig of the tripod is welded before assembling and splicing the tripod.
3. The construction method of the large-scale all-steel structural form indirect cooling tower of claim 2, wherein the outer enclosing aluminum plates are fastened by M6 bolts or blind rivets.
4. The construction method of the large-scale all-steel structural form indirect cooling tower according to claim 3, wherein the two tower cranes are both distributed inside the indirect cooling tower, and the two tower cranes are both double-rate tower cranes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711082436.XA CN107882339B (en) | 2017-11-07 | 2017-11-07 | Construction method of large all-steel structure type indirect cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711082436.XA CN107882339B (en) | 2017-11-07 | 2017-11-07 | Construction method of large all-steel structure type indirect cooling tower |
Publications (2)
| Publication Number | Publication Date |
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| CN107882339A CN107882339A (en) | 2018-04-06 |
| CN107882339B true CN107882339B (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711082436.XA Active CN107882339B (en) | 2017-11-07 | 2017-11-07 | Construction method of large all-steel structure type indirect cooling tower |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488103B (en) * | 2018-11-08 | 2021-06-01 | 中国化学工程第三建设有限公司 | Hydraulic lifting construction method for large all-steel structure intercooling tower |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1325094A (en) * | 1962-03-17 | 1963-04-26 | Entpr De Genie Civil Et Travau | Method and device for the construction of conical or hyperbolic refrigerants in reinforced concrete of large dimensions |
| US3761067A (en) * | 1971-04-15 | 1973-09-25 | Ipari Epuelettervezoe Vallalat | Large-size metal-framed tower |
| CN204373444U (en) * | 2014-11-30 | 2015-06-03 | 中国能源建设集团山西省电力勘测设计院 | Significantly can reduce the indirect air cooling system of floor space |
| CN105239804B (en) * | 2015-09-01 | 2017-05-24 | 山东电力建设第一工程公司 | Assembly and lift-erecting method of indirect air-cooling system stretching platforms |
| CN106759883B (en) * | 2016-11-30 | 2019-05-24 | 上海市机械施工集团有限公司 | The tower crane construction method of large-scale steel structure air cooling tower |
| CN206258018U (en) * | 2016-12-01 | 2017-06-16 | 华电重工股份有限公司 | One inter-species cooling system |
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| CN107882339A (en) | 2018-04-06 |
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Address after: 230000 East Fozhang Road and North Tingyun Road Office Building, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: China National Chemical Engineering Third Construction Co., Ltd. Address before: 232038 No. 98 Dongshan Road, Tianjiaan District, Huainan City, Anhui Province Applicant before: China National Chemical Engineering Third Construction Co., Ltd. |
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