CN114044433B - Special-shaped pipeline hoisting method for narrow space - Google Patents
Special-shaped pipeline hoisting method for narrow space Download PDFInfo
- Publication number
- CN114044433B CN114044433B CN202111372522.0A CN202111372522A CN114044433B CN 114044433 B CN114044433 B CN 114044433B CN 202111372522 A CN202111372522 A CN 202111372522A CN 114044433 B CN114044433 B CN 114044433B
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- special
- steel wire
- shaped pipeline
- hoisting
- wire rope
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 230000005484 gravity Effects 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 210000002310 elbow joint Anatomy 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to the field of lifting appliances comprising chains, steel wire ropes, ropes or slings, in particular to a method for lifting a special-shaped pipeline in a narrow space. A special-shaped pipeline hoisting method for a narrow space is characterized by comprising the following steps: the method comprises the following steps of: (1) determining a gravity center point; (2) calculating the length of the steel wire rope; (3) bundling the steel wire rope; (4) an auxiliary hanging point is additionally arranged; (5) and (5) hoisting. The invention is safe and reliable and has strong adaptability.
Description
Technical Field
The invention relates to the field of lifting appliances comprising chains, steel wire ropes, ropes or slings, in particular to a method for lifting a special-shaped pipeline in a narrow space.
Background
In industrial pipeline hoisting, the minimum stress of the steel wire ropes is ensured by increasing the distance between the hoisting points of the two steel wire ropes and increasing the length of the steel wire ropes in general, so that the safety requirement of pipeline hoisting is met, and meanwhile, the stability of the pipeline hoisting is ensured. However, the long steel wire rope is adopted for hoisting, so that the positioning difficulty of a pipeline in a narrow space is high, and the smooth implementation of the operation is affected.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a safe, reliable and high-adaptability hoisting method, and discloses a special-shaped pipeline hoisting method for a narrow space.
The invention achieves the aim through the following technical scheme:
a special-shaped pipeline hoisting method for a narrow space is characterized by comprising the following steps: the method comprises the following steps of:
(1) determining a gravity center point: splitting the profiled conduit into a combination of individual rule components, the rule components comprising: the straight pipe, the elbow joint, the three-way joint and the four-way joint are used for determining the gravity center position of each regular part according to the weight and the size of each regular part, then calculating the gravity center position of the special-shaped pipeline, arranging main hanging points on two sides of the gravity center of the special-shaped pipeline respectively, and respectively applying the same force to two main hanging points to generate two moments with equal magnitudes and opposite directions on the gravity center of the special-shaped pipeline;
(2) calculating the length of the steel wire rope: according to the hoisting height of the special-shaped pipeline and the lowest hoisting height of the hoisting device, the minimum length of the steel wire rope is calculated and selected, at the moment, the distance from the lifting hook of the hoisting device to the special-shaped pipeline is shortest, so that the special-shaped pipeline is in place, meanwhile, the distance between two main hoisting points is minimum, the stress of the steel wire rope during hoisting operation is minimum, and the safety is ensured;
(3) bundling a steel wire rope: binding steel wire ropes are respectively wound at two main hanging points, and the winding directions of the steel wire ropes at the two main hanging points are opposite to each other so as to offset rolling when the special-shaped pipeline is lifted and stressed, ensure symmetrical stress when the special-shaped pipeline is lifted and ensure that the special-shaped pipeline is stable and does not roll;
(4) and (4) adding auxiliary hanging points: the outer sides of the two main hanging points are symmetrically provided with auxiliary hanging points respectively, and the auxiliary hanging points are arranged on two sides of the special-shaped pipeline and are positioned on the same horizontal plane, so that the pipeline is further ensured to be stable;
(5) hoisting: one end of the steel wire rope is tethered to the lifting hook of the lifting device, the other end of the steel wire rope is tethered to the main lifting point and the auxiliary lifting point respectively, the two main lifting points and the two auxiliary lifting points are connected by the steel wire rope, and the lifting device is started to lift the special-shaped pipeline to the installation position.
The special-shaped pipeline hoisting method for the narrow space is characterized by comprising the following steps of:
in the step (1), the distance between two main hanging points is 0.5 m-1.5 m;
in the step (4), the distance between the two auxiliary hanging points is 3 m-5 m.
The invention has the following beneficial effects: the defect of the traditional hoisting method is overcome, the hoisting method is suitable for being installed in a narrow space, the pipeline can be ensured to be safely and smoothly located in the narrow space, and the requirement of once locating in the narrow space of the special-shaped pipeline can be met.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
A method for hoisting a special-shaped pipeline in a narrow space is shown in fig. 1, and is implemented by the following steps in sequence:
(1) determining a gravity center point: splitting the profiled conduit 1 into a combination of individual rule parts comprising: in this embodiment, the special-shaped pipeline 1 is further connected with an open hole diffuser 14, the open hole diffuser 14 is also used as a regular component, the gravity center position of each regular component is determined according to the weight and the size of each regular component, then the gravity center position of the special-shaped pipeline 1 is calculated, namely, the position shown as a point a in fig. 1, two main hanging points 21 are respectively arranged at two sides of the gravity center of the special-shaped pipeline 1, the same force is respectively applied to the two main hanging points 21, the two moments generated by the gravity center of the special-shaped pipeline 1 are equal in size and opposite in direction, and the distance between the two main hanging points 21 is 0.5 m-1.5 m;
(2) calculating the length of the steel wire rope: according to the hoisting height of the special-shaped pipeline 1 and the lowest hoisting height of the hoisting device, the minimum length of the steel wire rope is calculated and selected, and at the moment, the distance from the lifting hook of the hoisting device to the special-shaped pipeline 1 is shortest, so that the special-shaped pipeline 1 is in place, and meanwhile, the distance between two main hoisting points 21 is minimum, the stress of the steel wire rope during hoisting operation is minimum, and the safety is ensured;
(3) bundling a steel wire rope: binding steel wire ropes are respectively wound at the two main hanging points 21, and the winding directions of the steel wire ropes at the two main hanging points 21 are opposite to counteract rolling when the special-shaped pipeline 1 is lifted and stressed, so that symmetrical stress when the special-shaped pipeline 1 is lifted is ensured, and stable non-rolling of the special-shaped pipeline is ensured;
(4) and (4) adding auxiliary hanging points: an auxiliary hanging point 22 is symmetrically arranged on the outer sides of the two main hanging points 21 respectively, the auxiliary hanging points 22 are arranged on two sides of the special-shaped pipeline 1 and are positioned on the same horizontal plane, and the distance between the two auxiliary hanging points 22 is 3 m-5 m, so that the pipeline stability is further ensured;
(5) hoisting: one end of the steel wire rope is tethered to the lifting hook of the lifting device, the other end of the steel wire rope is tethered to the main lifting point 21 and the auxiliary lifting point 22 respectively, the two main lifting points 21 and the two auxiliary lifting points 22 are connected by the steel wire rope, and the lifting device is started to lift the special-shaped pipeline 1 to the installation position.
Claims (2)
1. A special-shaped pipeline hoisting method for a narrow space is characterized by comprising the following steps: the method comprises the following steps of:
(1) determining a gravity center point: -splitting the profiled conduit (1) into a combination of individual rule parts, said rule parts comprising: the straight pipe, the elbow joint, the three-way joint and the four-way joint are used for determining the gravity center position of each regular part according to the weight and the size of each regular part, then calculating the gravity center position of the special-shaped pipeline (1), arranging a main lifting point (21) on two sides of the gravity center of the special-shaped pipeline (1), and respectively applying the same force to the two main lifting points (21) to generate two moments with equal magnitudes and opposite directions on the gravity center of the special-shaped pipeline (1);
(2) calculating the length of the steel wire rope: according to the hoisting height of the special-shaped pipeline (1) and the lowest hoisting height of the hoisting device, calculating and selecting the minimum length of the steel wire rope;
(3) bundling a steel wire rope: binding steel wire ropes are respectively wound at two main hanging points (21), and the winding directions of the steel wire ropes at the two main hanging points (21) are opposite;
(4) and (4) adding auxiliary hanging points: an auxiliary hanging point (22) is symmetrically arranged at the outer sides of the two main hanging points (21), and the auxiliary hanging points (22) are arranged at two sides of the special-shaped pipeline (1) and are positioned on the same horizontal plane;
(5) hoisting: one end of the steel wire rope is tethered to a lifting hook of the lifting device, the other end of the steel wire rope is tethered to a main lifting point (21) and an auxiliary lifting point (22) respectively, the two main lifting points (21) and the two auxiliary lifting points (22) are connected by the steel wire rope, and the lifting device is started to lift the special-shaped pipeline (1) to the installation position.
2. The method for hoisting the special-shaped pipeline in the narrow space according to claim 1, wherein the method comprises the following steps:
in the step (1), the distance between the two main hanging points (21) is 0.5 m-1.5 m;
in the step (4), the distance between the two auxiliary hanging points (22) is 3 m-5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372522.0A CN114044433B (en) | 2021-11-19 | 2021-11-19 | Special-shaped pipeline hoisting method for narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372522.0A CN114044433B (en) | 2021-11-19 | 2021-11-19 | Special-shaped pipeline hoisting method for narrow space |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114044433A CN114044433A (en) | 2022-02-15 |
| CN114044433B true CN114044433B (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111372522.0A Active CN114044433B (en) | 2021-11-19 | 2021-11-19 | Special-shaped pipeline hoisting method for narrow space |
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| Country | Link |
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| CN (1) | CN114044433B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003306291A (en) * | 2002-04-12 | 2003-10-28 | Daido Steel Co Ltd | Engagement implement for lifting heavy object such as steel plate |
| CN102505860A (en) * | 2011-10-21 | 2012-06-20 | 温州建设集团有限公司 | Novel Lifting method for irregularly-shaped steel structure member |
| CN102851421A (en) * | 2012-04-18 | 2013-01-02 | 天津二十冶建设有限公司 | Method for installing blast furnace single-tube downcomer |
| CN103233087A (en) * | 2013-04-25 | 2013-08-07 | 攀钢集团工程技术有限公司 | Method for lifting downcomer of blast furnace |
| CN103981857A (en) * | 2014-06-05 | 2014-08-13 | 北京住总集团有限责任公司 | Method for hoisting L-shaped steel reinforcement cage of underground diaphragm wall |
| CN207030753U (en) * | 2017-08-04 | 2018-02-23 | 陕西北元化工集团股份有限公司 | A kind of special-shaped pipeline hoisting bracket |
-
2021
- 2021-11-19 CN CN202111372522.0A patent/CN114044433B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003306291A (en) * | 2002-04-12 | 2003-10-28 | Daido Steel Co Ltd | Engagement implement for lifting heavy object such as steel plate |
| CN102505860A (en) * | 2011-10-21 | 2012-06-20 | 温州建设集团有限公司 | Novel Lifting method for irregularly-shaped steel structure member |
| CN102851421A (en) * | 2012-04-18 | 2013-01-02 | 天津二十冶建设有限公司 | Method for installing blast furnace single-tube downcomer |
| CN103233087A (en) * | 2013-04-25 | 2013-08-07 | 攀钢集团工程技术有限公司 | Method for lifting downcomer of blast furnace |
| CN103981857A (en) * | 2014-06-05 | 2014-08-13 | 北京住总集团有限责任公司 | Method for hoisting L-shaped steel reinforcement cage of underground diaphragm wall |
| CN207030753U (en) * | 2017-08-04 | 2018-02-23 | 陕西北元化工集团股份有限公司 | A kind of special-shaped pipeline hoisting bracket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114044433A (en) | 2022-02-15 |
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