CN113531295A - Auxiliary device and method for construction of large-diameter pipeline elbow heat-insulating layer - Google Patents
Auxiliary device and method for construction of large-diameter pipeline elbow heat-insulating layer Download PDFInfo
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- CN113531295A CN113531295A CN202110865992.4A CN202110865992A CN113531295A CN 113531295 A CN113531295 A CN 113531295A CN 202110865992 A CN202110865992 A CN 202110865992A CN 113531295 A CN113531295 A CN 113531295A
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- shaped
- sleeve
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title abstract description 11
- 239000012774 insulation material Substances 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000143060 Americamysis bahia Species 0.000 description 1
- 239000004429 Calibre Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/10—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by supports specially adapted to objects of definite shape
- B62B3/104—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by supports specially adapted to objects of definite shape the object being of cylindrical shape, e.g. barrels, buckets, dustbins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/06—Hand moving equipment, e.g. handle bars
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- 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
- B66C1/62—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 comprising article-engaging members of a shape complementary to that of the articles to be handled
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves
- F16L59/024—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves composed of two half sleeves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses an auxiliary device for laying a heat-insulating layer of a large-diameter pipeline elbow and a construction method, wherein the auxiliary device comprises the following components: the device consists of an elbow, a first support column, a second support column, a sleeve and a support table, wherein the upper end of the elbow is positioned in an arc-shaped groove on the top surface of the support table and is fixed through a pipeline fixing component; the lower end of the elbow is provided with a lower end positioning component and is hung on the elbow of the truck crane through a rope; during construction, the lower end positioning assembly is placed in the positioning hole of the top plate, and the upper end of the elbow is still fixed. The invention avoids the condition that people are injured or the pipeline is damaged due to falling in the transportation process of the bend, reduces the subsequent fixing and supporting procedures when the pipeline is transported to the construction site, has convenient use and simple operation, improves the working efficiency, shortens the construction period and is easy to popularize.
Description
The technical field is as follows:
the invention relates to a pipeline elbow moving device, in particular to an auxiliary device and a construction method for large-diameter pipeline elbow heat-insulating layer construction.
Background art:
when present heavy-calibre pipeline elbow lays insulation material, need remove it to the workstation, traditional hoist and mount mode is: directly binding the elbow by using a rope, and moving the elbow to a workbench by using a crane; however, the hoisting mode has the following disadvantages: firstly, as the surface layer of the pipeline is smooth, the elbow is easy to fall off during hoisting, personal injury can be caused to workers, and the elbow can deform; secondly, after the pipeline elbow is hoisted in place, the pipeline elbow needs to be fixed again, and time and labor are wasted.
The invention content is as follows:
the technical problem to be solved by the invention is as follows: the auxiliary device and the construction method for the construction of the heat-insulating layer of the large-diameter pipeline elbow can avoid the falling condition in the handling process of the elbow, reduce the construction steps for fixing the pipeline elbow after the elbow is lifted in place, shorten the construction time and improve the construction quality.
The technical scheme adopted by the invention for solving the technical problem is as follows:
an auxiliary device for laying a heat-insulating layer of a large-diameter pipeline elbow comprises an elbow, a first strut, a second strut, a sleeve and a support table, wherein the upper end of the elbow is positioned in an arc-shaped groove on the top surface of the support table, pipeline fixing components are arranged on two sides of the arc-shaped groove, the sleeve is arranged at the bottom of the support table, and the sleeve is sleeved on the second strut and fixed through a first puller bolt; the second support is arranged on the displacement table, and the bottom of the displacement table is provided with a roller; the lower end of the elbow is inserted and arranged on the lower end positioning assembly, a workbench is arranged beside the displacement table, a first support is arranged on the workbench, a top plate is arranged at the top of the first support, and positioning holes distributed annularly are formed in the top of the top plate.
The lower end positioning assembly consists of a limiting inner ring baffle, a bottom ring, an outer sleeve and an annular connecting disc, wherein the limiting inner ring baffle is positioned inside the outer sleeve, and the bottom surfaces of the limiting inner ring baffle and the limiting outer ring baffle are on the same horizontal plane; the height of the limiting inner ring baffle is one fifth of that of the outer sleeve, a bottom ring is arranged between the limiting inner ring baffle and the bottom of the outer sleeve, an annular connecting disc is arranged on the outer side of the top of the outer sleeve, and a lifting lug is arranged on the annular connecting disc; the diameter of the outer ring of the outer sleeve is smaller than that of the outer ring of the positioning hole, and the diameter of the inner ring of the limiting inner ring baffle is larger than that of the inner ring of the positioning hole.
The pipeline fixing assembly comprises a first U-shaped frame, a fixing band, a second U-shaped frame and a second puller bolt, wherein the first U-shaped frame is arranged on one side of the arc-shaped groove, a rectangular groove is correspondingly dug on the other side of the arc-shaped groove, the second U-shaped frame is arranged on the right side of the bottom of the rectangular groove, and the second U-shaped frame is positioned at the bottom of the supporting table; the fixing band is arranged on the first U-shaped frame, the other end of the fixing band sequentially penetrates through the rectangular groove and the second U-shaped frame and is fixed through a second puller bolt, and the second puller bolt is located on the bottom face of the second U-shaped frame.
And a U-shaped handle is arranged on one side of the displacement table.
The lower port of the elbow is inserted in a gap between the limiting inner ring baffle and the outer sleeve.
The construction method of the auxiliary device for the construction of the large-caliber pipeline elbow heat-insulating layer comprises the following steps:
firstly, adjusting the height of a sleeve to enable the upper end of an elbow to be positioned in an arc-shaped groove, and fixing the sleeve through a first puller bolt;
secondly, winding the movable end of the fixing belt outside the elbow, sequentially penetrating through the rectangular through hole and the second U-shaped frame, fixing and tightening the upper end of the elbow, and finally fixing the movable end of the fixing belt through a second tightening bolt;
sleeving a lower end positioning component at the lower end of the elbow, respectively connecting a rope to the lifting lugs, and connecting the other end of the rope with the elbow of the crane;
starting the crane, loosening the first tightening bolt, enabling the worker to hold the U-shaped handle to move the elbow, and enabling the crane to move along with the worker;
fifthly, slowly descending the crane until the lower end positioning component is positioned right above the top plate until workers can hold the annular connecting plate by hands and the crane is matched to use, so that the lower end positioning component at the lower end of the elbow is inserted into the positioning hole in the top surface of the top plate;
sixthly, loosening the rope from the truck to prepare for laying the heat insulation material;
seventhly, cutting two same fan-shaped heat insulation materials according to the external area of the elbow, sticking the outer arcs of the two fan-shaped heat insulation materials together in advance, and buckling the stuck heat insulation materials at the elbow after the stuck part is solidified;
and eighthly, coating the adhesive on the other side of the two fan-shaped heat insulation materials, and holding the heat insulation materials by at least one worker to close the other ends of the heat insulation materials together until the adhesive is solidified.
The invention has the following positive beneficial effects:
1. according to the invention, the pipeline fixing components are arranged on the two sides of the arc-shaped groove of the supporting platform, so that when the elbow fixing device is used, the position of the supporting platform away from the elbow end can be adjusted according to the position of the upper end of the elbow, the upper end of the elbow can be placed in the arc-shaped groove, and the pipe fixing components are used for locking and fixing; meanwhile, the lower end positioning assembly is arranged at the lower end of the elbow and is matched with a truck crane to fix and protect the lower end opening of the pipeline, so that the falling condition in the process of hoisting the elbow is avoided.
2. According to the invention, the positioning hole is formed in the top disc, after the elbow is hoisted in place, only the lower end positioning assembly needs to be directly inserted into the positioning hole, the lower end of the elbow is positioned in the positioning hole, the upper end of the elbow is fixed in the arc-shaped groove, and the pipeline is in a fixed and stable state, so that the construction of dismounting and positioning the pipeline is reduced, and the construction efficiency and the construction quality are improved.
3. According to the invention, the limiting inner ring baffle is arranged in the outer sleeve, and the bottom ring is arranged at the bottom between the outer sleeve and the limiting inner ring baffle, so that the bottom of the elbow is supported when the elbow is used, and the bottom of the elbow is prevented from being damaged during transportation.
Description of the drawings:
FIG. 1 is a state diagram of the present invention in use;
FIG. 2 is a schematic view of the lower positioning assembly of the present invention;
FIG. 3 is a schematic structural diagram of the thermal insulation material of the present invention.
The specific implementation mode is as follows:
the invention will be further explained and explained with reference to the drawings, in which:
example 1: referring to the soil 1-fig. 3, the auxiliary device for laying the heat-insulating layer of the large-diameter pipeline elbow comprises an elbow A, a first pillar 4, a second pillar 7, a sleeve 8 and a support table 10, wherein the upper end of the elbow A is positioned in an arc-shaped groove 11 on the top surface of the support table 10, pipeline fixing components are arranged on two sides of the arc-shaped groove 1, the sleeve 8 is arranged at the bottom of the support table 10, and the sleeve 8 is sleeved on the second pillar 10 and is fixed through a first puller bolt 9; the second support column 10 is arranged on the displacement table 2, and the bottom of the displacement table 2 is provided with a roller 3; the lower extreme of elbow A is inserted and is established on lower extreme locating component, and displacement table 2 is provided with workstation 1 on one side, is provided with first support 4 on the workstation 1, and the top of first support 4 is provided with top dish 5, and the top of top dish 5 is provided with cyclic annular distribution's locating hole 6.
The lower end positioning assembly consists of a limiting inner ring baffle 171, a bottom ring 172, an outer sleeve 17 and an annular connecting disc 18, wherein the limiting inner ring baffle 171 is positioned inside the outer sleeve 17, and the bottom surfaces of the limiting inner ring baffle 171 and the bottom surfaces of the limiting inner ring baffle are on the same horizontal plane; the height of the limiting inner ring baffle 171 is one fifth of the height of the outer sleeve 17, a bottom ring 172 is arranged between the limiting inner ring baffle 171 and the bottom of the outer sleeve 17, an annular connecting disc 18 is arranged on the outer side of the top of the outer sleeve 17, and a lifting lug 19 is arranged on the annular connecting disc 18; the outer ring diameter of the outer sleeve 17 is smaller than that of the positioning hole 6, and the inner ring diameter of the limit inner ring baffle 171 is larger than that of the positioning hole 6.
The pipeline fixing assembly comprises a first U-shaped frame 12, a fixing belt 13, a second U-shaped frame 15 and a second puller bolt 16, wherein the first U-shaped frame 12 is arranged on one side of the arc-shaped groove 11, a rectangular groove 14 is correspondingly dug on the other side of the arc-shaped groove 11, the second U-shaped frame 15 is arranged on the right side of the bottom of the rectangular groove 14, and the second U-shaped frame 15 is positioned at the bottom of the supporting table 10; and a fixing belt 13 is arranged on the first U-shaped frame 12, the other end of the fixing belt 13 sequentially penetrates through the rectangular groove 14 and the second U-shaped frame 5 and is fixed through a second tightening bolt 16, and the second tightening bolt 16 is positioned on the bottom surface of the second U-shaped frame 15.
One side of the displacement table 2 is provided with a U-shaped handle.
The lower port of the elbow a is inserted into the space between the limit inner ring baffle 171 and the outer sleeve 17.
In actual operation, the annular groove formed between the outer sleeve 17 and the limiting inner ring baffle is determined according to the size of the inner diameter of the elbow pipe orifice; the size of the positioning hole 6 on the top disc 5 is matched with the size of the lower end positioning component.
Example 2: the construction method of the auxiliary device for the construction of the large-caliber pipeline elbow heat-insulating layer comprises the following steps:
firstly, adjusting the height of the sleeve 8 to enable the upper end of the elbow A to be positioned in the arc-shaped groove 11, and fixing the sleeve 8 through a first puller bolt 9; the first puller bolt is positioned outside the sleeve, penetrates through the sleeve and is connected with the sleeve through threads;
secondly, winding the movable end of the fixing belt 13 outside the elbow A, sequentially passing through the rectangular through hole 14 and the second U-shaped frame 15, fixing and tightening the upper end of the elbow A, and finally fixing the movable end of the fixing belt 13 through a second tightening bolt 16; in actual operation, the contact surface of the fixing belt 13 and the pipeline can be provided with an anti-skid layer;
thirdly, sleeving a lower end positioning component at the lower end of the elbow A, respectively connecting a rope 20 on the lifting lug 19, and connecting the other end of the rope 20 with the elbow of the crane; each lifting lug is connected with a rope, then the upper ends of the two ropes are tied together and hung on the elbow of the crane;
starting the crane, loosening the first tightening bolt 9, holding the U-shaped handle by a worker to move the elbow A, and moving the crane along with the worker;
fifthly, slowly descending the crane until the lower end positioning component is positioned right above the top plate 5 until a worker can hold the annular connecting plate 18 by hands and the crane is matched to use, so that the lower end positioning component at the lower end of the elbow A is inserted into the positioning hole 6 on the top surface of the top plate; the arc-shaped connecting disc is arranged at the first place of the worker, so that the lower end of the lower end positioning component is prevented from shaking in the process of being positioned below the elbow, and the worker can conveniently place the lower end positioning component in the positioning hole;
sixthly, loosening the rope 20 from the truck crane and preparing for laying the heat insulation material;
seventhly, cutting two same fan-shaped heat insulation materials C according to the external area of the elbow, sticking outer arcs B of the two fan-shaped heat insulation materials C together in advance, and buckling the stuck heat insulation materials at the elbow after the stuck part is solidified;
eighthly, coating adhesive on the other side edge (inner arc) of the two fan-shaped heat insulation materials C, and holding the heat insulation materials by at least one worker to close the other ends of the heat insulation materials until the adhesive is solidified; generally, two workers are needed, and one person holds the heat-insulating material at one end so that the heat-insulating material is more attached to the pipe wall.
In actual transportation, the pipeline elbow is generally horizontally placed on the ground, when in transportation, a worker floats the elbow, then adjusts the height of the sleeve according to the position of the upper end of the elbow so that the upper end of the elbow can be placed in the arc-shaped groove, and then fixes the upper end of the pipeline elbow by using the fixing belt; and finally, the elbow is moved to the upper part of the top plate in cooperation with the use of a truck crane.
In actual operation, a pipeline with a plurality of bent pipes can be encountered, and in the hoisting process, only one end of the pipeline needs to be vertically and downwards distributed, and the transverse pipe at the other end of the bent pipe needs to be placed in the arc-shaped groove.
In the process of cutting the pipeline heat-insulating material, two fan-shaped heat-insulating materials need to be cut in advance, so that the elbows can be wrapped by the heat-insulating materials; traditional insulation material construction adopts the unloading mode of dried small shrimps waist, but this kind of mode is to insulation material, because the seam is more, so thermal insulation performance is not good, and appearance aesthetic measure is not high simultaneously.
The invention avoids the condition that people are injured or the pipeline is damaged due to falling in the transportation process of the bend, reduces the subsequent fixing and supporting procedures when the pipeline is transported to the construction site, has convenient use and simple operation, improves the working efficiency, shortens the construction period and is easy to popularize.
Claims (6)
1. The utility model provides a large-diameter pipeline elbow heat preservation lays auxiliary device, by elbow (A), first pillar (4), second pillar (7), sleeve (8) and brace table (10), its characterized in that: the upper end of the elbow (A) is positioned in an arc-shaped groove (11) on the top surface of a supporting table (10), pipeline fixing components are arranged on two sides of the arc-shaped groove (1), a sleeve (8) is arranged at the bottom of the supporting table (10), and the sleeve (8) is sleeved on a second supporting column (10) and is fixed through a first tightening bolt (9); the second support column (10) is arranged on the displacement table (2), and the bottom of the displacement table (2) is provided with a roller (3); the lower extreme of elbow (A) is inserted and is established on lower extreme locating component, one side of displacement platform (2) is provided with workstation (1), be provided with first pillar (4) on workstation (1), the top of first support (4) is provided with top dish (5), the top of top dish (5) is provided with cyclic annular distribution's locating hole (6).
2. The auxiliary device for constructing the insulating layer of the large-caliber pipeline elbow as claimed in claim 1, wherein: the lower end positioning assembly consists of a limiting inner ring baffle (171), a bottom ring (172), an outer sleeve (17) and an annular connecting disc (18), wherein the limiting inner ring baffle (171) is positioned inside the outer sleeve (17), and the bottom surfaces of the limiting inner ring baffle and the bottom ring are on the same horizontal plane; the height of the limiting inner ring baffle plate (171) is one fifth of that of the outer sleeve (17), a bottom ring (172) is arranged between the limiting inner ring baffle plate (171) and the bottom of the outer sleeve (17), an annular connecting disc (18) is arranged on the outer side of the top of the outer sleeve (17), and a lifting lug (19) is arranged on the annular connecting disc (18); the diameter of the outer ring of the outer sleeve (17) is smaller than that of the outer ring of the positioning hole (6), and the diameter of the inner ring of the limiting inner ring baffle (171) is larger than that of the inner ring of the positioning hole (6).
3. The auxiliary device for constructing the insulating layer of the large-caliber pipeline elbow as claimed in claim 1, wherein: the pipeline fixing assembly comprises a first U-shaped frame (12), a fixing belt (13), a second U-shaped frame (15) and a second puller bolt (16), wherein the first U-shaped frame (12) is arranged on one side of the arc-shaped groove (11), a rectangular groove (14) is correspondingly dug on the other side of the arc-shaped groove (11), the second U-shaped frame (15) is arranged on the right side of the bottom of the rectangular groove (14), and the second U-shaped frame (15) is located at the bottom of the supporting table (10); the fixing belt (13) is arranged on the first U-shaped frame (12), the other end of the fixing belt (13) sequentially penetrates through the rectangular groove (14) and the second U-shaped frame (5) and is fixed through a second tightening bolt (16), and the second tightening bolt (16) is located on the bottom surface of the second U-shaped frame (15).
4. The auxiliary device for constructing the insulating layer of the large-caliber pipeline elbow as claimed in claim 1, wherein: one side of the displacement table (2) is provided with a U-shaped handle.
5. The auxiliary device for constructing the insulating layer of the large-caliber pipeline elbow as claimed in claim 1, wherein: the lower port of the elbow (A) is inserted into a gap between the limiting inner ring baffle (171) and the outer sleeve (17).
6. The construction method of the large-caliber pipe elbow heat-insulating layer construction auxiliary device as claimed in any one of claims 1 to 5, is characterized by comprising the following steps:
firstly, adjusting the height of a sleeve (8), enabling the upper end of an elbow (A) to be positioned in an arc-shaped groove (11), and fixing the sleeve (8) through a first puller bolt (9);
secondly, winding the movable end of the fixing belt (13) outside the elbow (A), sequentially passing through the rectangular through hole (14) and the second U-shaped frame (15), fixing and tightening the upper end of the elbow (A), and finally fixing the movable end of the fixing belt (13) through a second tightening bolt (16);
thirdly, sleeving a lower end positioning component at the lower end of the elbow (A), respectively connecting a rope (20) on the lifting lug (19), and connecting the other end of the rope (20) with the elbow of the crane;
starting the crane, loosening the first tightening bolt (9), holding the U-shaped handle moving elbow (A) by a worker, and moving the crane along with the worker;
fifthly, the crane descends slowly until the lower end positioning component is positioned right above the top plate (5) until a worker can hold the annular connecting plate (18) and is matched with the crane to enable the lower end positioning component at the lower end of the elbow (A) to be inserted into the positioning hole (6) on the top surface of the top plate;
sixthly, loosening the rope (20) from the truck crane to prepare for laying the heat insulation material;
seventhly, cutting two same fan-shaped heat insulation materials (C) according to the external area of the elbow, sticking outer arcs (B) of the two fan-shaped heat insulation materials (C) together in advance, and buckling the stuck heat insulation materials at the elbow after the stuck part is solidified;
and (b) smearing the adhesive on the other side of the two fan-shaped heat insulation materials (C), and holding the heat insulation materials by at least one worker to close the other ends of the heat insulation materials together until the adhesive is solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110865992.4A CN113531295B (en) | 2021-07-29 | 2021-07-29 | Auxiliary device and method for construction of large-caliber pipeline elbow heat-insulating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110865992.4A CN113531295B (en) | 2021-07-29 | 2021-07-29 | Auxiliary device and method for construction of large-caliber pipeline elbow heat-insulating layer |
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| Publication Number | Publication Date |
|---|---|
| CN113531295A true CN113531295A (en) | 2021-10-22 |
| CN113531295B CN113531295B (en) | 2024-03-15 |
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