CN208759266U - Major diameter aerial pipeline high-altitude derusting device - Google Patents
Major diameter aerial pipeline high-altitude derusting device Download PDFInfo
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- CN208759266U CN208759266U CN201821670008.9U CN201821670008U CN208759266U CN 208759266 U CN208759266 U CN 208759266U CN 201821670008 U CN201821670008 U CN 201821670008U CN 208759266 U CN208759266 U CN 208759266U
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Abstract
The utility model provides a kind of major diameter aerial pipeline high-altitude derusting device, and the axial sanding machine of three of Chinese character pin-shaped arrangement, they pass through fixed bracket and connect with pillar is compressed, and compress pillar top and cross bar one end is affixed；The cross bar other end and crawling device are affixed；The crawling device includes casing, casing internal is equipped with driving motor, bottom of shell is equipped with magnetic force crawl device, magnetic force crawl device includes four upper permanent magnetic wheels, permanent magnetic wheels and tube contacts face are designed as inclination angle λ, realize that the angle of the direction of advance of magnetic force crawl device and the tangent line of pipeline is greater than 0 °, the inclination angleIn formula: H represents lead, is the height that crawling device rises needs vertically；D represents outer diameter tube, this derusting device can on pipeline corkscrew climb, automatically grinding, adjustment direction of travel is not needed in use process, does not need real-time pipeline polishing dynamics, it is convenient to use, reduce safety measure investment.
Description
Technical field
It derusts technical field the utility model relates to metallic conduit, is climbed specifically, being related to a kind of large-diameter pipeline magnetic force
Row derusting device and construction method.
Background technique
Metallic conduit causes metallic conduit outstanding as one kind in pipeline because of the influence of the material qualitative factor of its own
It is that ordinary carbon steel pipeline is easy to oxidation by oxygen in air, while a large amount of rust generated by the effect of steam
Erosion, pipeline must assure that the cleaning of pipeline outer wall before anti-corrosion, and derusting grade generally requires to reach Sa2 or St3, to avoid rust
Erosion influences the anticorrosive quality of pipeline.Corrosion if do not cleared up pipeline outer wall be easy to cause erosion resistant coating peeling, falls off, even results in
Pipeline seriously corrodes, and reduces pipeline strength, leads to the generation of accident.Therefore, the metallic conduit corrosion of major diameter is beaten
The work for abrading rust is very necessary.
It in Industrial Metal pipe installation process, is restricted by field condition, under extreme case, pipeline is needed first to install
And welding, it then just can be carried out the derusting and anticorrosive work of pipeline.In the prior art, pipeline is first installed and is welded, and then could
Carry out the derusting and anticorrosive work of pipeline.Traditional working method needs to set up a large amount of scaffolds before formally carrying out pipeline polishing,
It is long in time limit, at high cost.Especially major diameter aerial pipeline, bracket spacing is big, surface area is big, overhead height is high, with more larger
Risk.
Utility model content
The utility model is to solve progress large-diameter pipeline derusting work in the prior art to set up scaffold, participant
The shortcomings that member is more, heavy workload.
The utility model provides a kind of major diameter aerial pipeline high-altitude derusting device to solve above-mentioned technical problem, specific
Technical solution is:
A kind of major diameter aerial pipeline high-altitude derusting device, the axial sanding machine of three of Chinese character pin-shaped arrangement, they pass through solid
Fixed rack is connect with pillar is compressed, and compresses pillar top and cross bar one end is affixed；The cross bar other end and crawling device are affixed；It is described
Crawling device includes casing, and casing internal is equipped with driving motor, and bottom of shell is equipped with magnetic force crawl device, the advance of magnetic force crawl device
The angle of the tangent line of direction and pipeline is greater than 0 °.
This scheme be particularly adapted to field major diameter metal inner tube derusting environment work, derusting device can on pipeline spiral shell
Rotating to creep, automatically grinding, one grinding head position of grinding device is fixed, the adjustable position of another two grinding head, is realized and is adjusted
Save the width of single channel polishing.Adjustment direction of travel is not needed in present apparatus use process, does not need real-time pipeline polishing dynamics.Make
Used time is convenient and efficient, reduces safety measure investment.
Preferably, the magnetic force crawl device includes four upper permanent magnetic wheels, and permanent magnetic wheels and tube contacts face are designed as inclination angle λ,
The inclination angleIn formula: H represents lead, is the height that crawling device rises needs vertically；D is represented outside pipeline
Diameter.
Preferably, wherein the first sanding machine is solid by the first fixed bracket and compression pillar guide rails in three axial sanding machines
It connects；Second sanding machine and third sanding machine are connect by the second fixed bracket with pillar guide rails are compressed, the second fixed bracket
It is equipped with strip adjustment hole, second sanding machine, third sanding machine prolong adjustment hole changing position.
Preferably, the compression pillar is made of inner prop and column jacket, and inner prop can stretch in column jacket, outer vial wall
It is equipped with positioning bolt and locks inner prop position.
Further improvement for above scheme, crawling device casing outside are equipped with dedusting ash cellar, are equipped under dedusting ash cellar
Dedusting fan；The grinding head of the axial sanding machine of three of the Chinese character pin-shaped arrangement is equipped with dust excluding hood, and dust excluding hood passes through sweep-up pipe
It is communicated with dedusting ash cellar；The driving motor polishes mechatronics with dedusting fan and axially respectively.
Preferential, the dedusting ash cellar and dedusting fan junction are equipped with filter screen.
Preferably, the compression pillar is hollow structure, cross bar is hollow structure, compresses pillar and cross bar as sweep-up pipe
It uses.
Detailed description of the invention
Fig. 1 lapping machine structure figure；
Fig. 2 is lapping machine structure front elevation；
Fig. 3 is lapping machine structure perspective view；
Fig. 4 is crawling device schematic diagram；
Fig. 5 is permanent magnetic wheels structural schematic diagram；
Fig. 6 is the utility model overall diagram；
In figure: the fixed bracket 5 of the fixed bracket 4, second of sanding machine 1, anchor ear 2, fastening bolt 3, first compresses pillar 6, is interior
Column 7, cross bar 8, adjustment hole 9, casing 10, permanent magnetic wheels 11, dedusting ash cellar 12, filter screen 13, dust excluding hood 14, cleaning shaft 15.
Specific embodiment
The utility model is described in detail below:
1. the design of derusting device
As shown in Figure 1, derusting device arranges that sanding machine specification is Φ 150 using three axial sanding machines 1 in a triangle,
The bowl brush of different size, such as Φ 150, Φ 125, Φ 100 can according to circumstances be selected.Sanding machine head arrangement is as follows:
Sanding machine 1 is mounted on fixed bracket by anchor ear 2 and fastening bolt 3, and fixed bracket and compression pillar are affixed.It embraces
Hoop, fastening bolt select different specifications according to the diameter of sanding machine.
As shown in Figure 2,3, in three axial sanding machines, the first sanding machine is solid by the first fixed bracket 4 and compression pillar 6
It connects；Second sanding machine and third sanding machine are connect by the second fixed bracket 5 with pillar 6 is compressed, on the second fixed bracket 5
Equipped with strip adjustment hole 9, the fastening bolt 3 for fixing the second sanding machine, third sanding machine is mounted in adjustment hole 9, makes institute
The second sanding machine, third sanding machine are stated along 9 changing position of adjustment hole.The spacing of second sanding machine and third sanding machine is the present apparatus
Polishing width, the polishing width of the first sanding machine should be with the polishing width " bordering on " of the second sanding machine, third sanding machine.This
The first sanding machine, the second sanding machine, third sanding machine in description are identical structures, this part explanation only will for convenience of description
They are numbered respectively.
2. the design of pipe magnetic crawl device
As shown in figure 4, the utility model devises crawling device, it includes casing 10, and driving electricity is housed inside casing 10
Machine, 10 bottom of casing are equipped with magnetic force crawl device.Major diameter aerial pipeline after the installation is completed, fixed by pipeline, to complete pipeline
Derusting work, need to make rust removalling equipment to carry out cylindrical screw curvilinear motion around pipeline.If pipe magnetic crawl device is tilted
It is placed in the axis of pipeline, then the permanent magnetic wheels of magnetic force crawl device cannot be effectively bonded with pipeline, and magnetic force weakens, and be unfavorable for magnetic force and climbed
The safe operation of row device.And in order to realize the cylindrical screw curvilinear motion of pipe magnetic crawl device, then it must make magnetic force crawl device
Direction of advance can with the angle of the tangent line of pipeline be greater than 0 °.
Therefore, for the angle of the tangent line of the direction of advance and pipeline of power crawl device is greater than 0 °, specific practice, which may is that, to be set
Meter designs four permanent magnetic wheels 11 in bottom of shell, permanent magnetic wheels 11 is designed to certain inclination angle λ, as shown in Figure 5.
Permanent magnetic wheels angle λ can be with tentative calculation according to the formula of cylindrical screw curvilinear motion:
In formula: H is lead, is that the height that the present apparatus rose along axial-rotation one week claims.Hmax is that derusting is set in the design
Standby maximum derusting width, to guarantee the width that derusts, the design uses 150 sanding machine of Φ, and Hmax takes 410mm；
D is the large-diameter pipeline outer diameter to be polished.
Lead maximum no more than derusts width, and to guarantee derusting effect, the utility model is by an example to permanent magnetism
The determination of wheel inclination angle λ illustrates:
The common large-diameter pipeline outer diameter of my unit is essentially Φ 1620, Φ 1620, Φ 1820, Φ 2020, Φ 2220, Φ
2420, Φ 2620, Φ 2820 carry out tentative calculation, as a result as follows:
Lead (derusting width) H=π D*tan λ, the angle the big, and the width that derusts is bigger, but is influenced by equipment, and Hmax is only
410mm can be taken.Therefore, to guarantee derusting effect, comprehensively consider rust cleaning efficiency, taking magnet-wheel angle is 2.65 °.(derusting is wide for lead
Degree) use scope of H is as follows:
As a result, by magnet-wheel angle design at 2.65 °, lead is up to 0.409, this value can satisfy equipment less than 0.41
It is required that.
3. the design of dust-extraction unit
To meet the environmental requirement in work progress, above-mentioned apparatus is further improved, is had additional by dust pelletizing system
The dust-extraction unit being made of dust excluding hood 14, cleaning shaft 15, dedusting fan.With specific reference to Fig. 6: being set outside crawling device casing 10
There is dedusting ash cellar 12, dedusting ash cellar 12 is lower to be equipped with dedusting fan and dedusting motor；The axial polishing of three of the Chinese character pin-shaped arrangement
The grinding head of machine 1 is equipped with dust excluding hood 14, and dust excluding hood 14 is communicated by sweep-up pipe 15 with dedusting ash cellar 12.
, should be tight as far as possible when dust excluding hood 14 makes, seaming position can suitably be sealed using sealant, to reduce leakage
Tolerance reduces internal mask pressure, promotes efficiency of dust collection.
In addition, dedusting ash cellar 12 and dedusting fan junction are equipped with filter screen 13.
Derusting device makes it generate the pressure to work surface, completes derusting operation using the fixed sanding machine 1 of pillar 6 is compressed.
In polishing, crawling device is mounted on large-diameter pipeline above-mentioned derusting device, due to realizing that crawling device is connect with sanding machine
Compression pillar 6 and cross bar 8 be all overall structure, the pressure of 1 relative duct size wall of sanding machine is fixed.It is kept in bruting process
Constant polishing power.
The present invention once attempted to design spring in compressing pillar in design, to which grinding head can be made according to duct wall difference
Corrosion situation adjust polishing power, but in actual use, the present apparatus is the corkscrew climb on pipeline, when sanding machine is in
When below pipeline, since the structure sanding machine self weight of spring can make grinding head be detached from pipe surface, the mesh of pressure adjustment is not achieved
's.
And situation when for different rust, the grinding effect that same polishing power obviously cannot all be optimal, to solve this
One problem improves the present apparatus again: the compression pillar 6 is made of inner prop 7 and column jacket, and inner prop 7 can be stretched in column jacket
Contracting, outer vial wall are equipped with positioning bolt and lock inner prop position.
Intelligence control system can certainly be installed for the present apparatus, realize polishing power adjust automatically.The intelligence control system
It should include gravity resolution system, corrosion monitoring system and polishing detection system.
The present invention is to pillar and cross bar progress simple deformation is compressed, and extend its function: compressing pillar 6 is hollow structure, cross
Bar 8 is hollow structure, and a part for compressing pillar 6 and cross bar 8 as sweep-up pipe 15 uses.
This equipment suitable environment be major diameter aerial pipeline after the installation is completed, without conduit fittings, pipeline between support of pipelines
When spacing is greater than 500mm.
Crawling device of the invention is not limited to shape shown in attached drawing, as long as including that each component of the present invention is all fallen
Enter this application claims range.Permanent magnetic wheels 11 of the present invention are not limited to as shown in the figure be directly installed on housing bottom axis
On, it is also possible to be mounted on crawling device by mechanical stabilizer blade, mechanical stabilizer blade can may be used also by the diameter adjustment span of pipeline
To pass through contact force of the intelligence control system according to the gravity state adjust automatically permanent magnetic wheels of the present apparatus on pipeline.
The construction method of this major diameter aerial pipeline high-altitude derusting device:
1) operator station sets up temporary operating platform or cage, platform four on support of pipelines on support of pipelines
Week setting safety rope, operator's wear safety belt；
2) chain block is installed on support of pipelines, derusting device is lifted into operating platform, when lifting should lift derusting
The lifting lug of device and crossbeam cannot be bundled；
3) before use, fixing the position of the second sanding machine and third sanding machine, according to two sanding machine spacing, pipe diameter D,
Lead H calculates the circle number that this polishing needs to creep, and conducting wire is wound on pipeline in advance；
4) in use, an operation station is in putting grinding device in left side brackets, another operation station is in right side branch
Cable is pulled on frame, prevents cable from mutually winding.
The utility model is the utility model has the advantages that this apparatus structure is simple, and product weight is relatively light (about 35kg), and rust cleaning efficiency is higher,
It is particularly suitable for DN2800 pipeline below.It is convenient and efficient when use, safety measure investment is reduced, economic and environment-friendly, safety is pacified
A possibility that full accident occurs.Derusting construction is carried out using the present apparatus and does not need supporting scaffold, pipeline can be completed in two people
Derusting, numerous workers can be freed, can effectively complete major diameter from potentially dangerous working environment
Derust operation in aerial pipeline high-altitude, ensure that safety, the economy, the feature of environmental protection of construction.
Claims (7)
1. a kind of major diameter aerial pipeline high-altitude derusting device, it is characterized in that: the axial sanding machine of three of Chinese character pin-shaped arrangement, they
It is connect by fixed bracket with pillar is compressed, compresses pillar top and cross bar one end is affixed；The cross bar other end and crawling device are solid
It connects；The crawling device includes casing, and casing internal is equipped with driving motor, and bottom of shell is equipped with magnetic force crawl device, and magnetic force is creeped
The angle of the tangent line of the direction of advance and pipeline of device is greater than 0 °.
2. major diameter aerial pipeline as described in claim 1 high-altitude derusting device, it is characterized in that: the magnetic force crawl device includes four
A upper permanent magnetic wheels, permanent magnetic wheels and tube contacts face are designed as inclination angle λ, the inclination angleIn formula: H represents lead, is
Crawling device rises the height of needs vertically；D represents outer diameter tube.
3. major diameter aerial pipeline as described in claim 1 high-altitude derusting device, it is characterized in that: wherein in three axial sanding machines
First sanding machine is affixed by the first fixed bracket and compression pillar guide rails；Second sanding machine and third sanding machine are solid by second
Fixed rack is connect with pillar guide rails are compressed, and the second fixed bracket is equipped with strip adjustment hole, second sanding machine, third
Sanding machine prolongs adjustment hole changing position.
4. major diameter aerial pipeline as described in claim 1 high-altitude derusting device, it is characterized in that: the compression pillar by inner prop and
Column jacket composition, inner prop can stretch in column jacket, and outer vial wall is equipped with positioning bolt and locks inner prop position.
5. major diameter aerial pipeline as described in claim 1 high-altitude derusting device, it is characterized in that: being equipped with outside crawling device casing
Dedusting ash cellar is equipped with dedusting fan under dedusting ash cellar；The grinding head of the axial sanding machine of three of the Chinese character pin-shaped arrangement is equipped with
Dust excluding hood, dust excluding hood are communicated by sweep-up pipe with dedusting ash cellar；The driving motor respectively with dedusting fan and axial sanding machine
Electrical connection.
6. major diameter aerial pipeline as claimed in claim 5 high-altitude derusting device, it is characterized in that: the dedusting ash cellar and dedusting wind
Machine junction is equipped with filter screen.
7. major diameter aerial pipeline as claimed in claim 5 high-altitude derusting device, it is characterized in that: compress pillar be hollow structure,
Cross bar is hollow structure, and a part for compressing pillar and cross bar as sweep-up pipe uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821670008.9U CN208759266U (en) | 2018-10-15 | 2018-10-15 | Major diameter aerial pipeline high-altitude derusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821670008.9U CN208759266U (en) | 2018-10-15 | 2018-10-15 | Major diameter aerial pipeline high-altitude derusting device |
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| CN208759266U true CN208759266U (en) | 2019-04-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079636A (en) * | 2018-10-15 | 2018-12-25 | 中国二十二冶集团有限公司 | Major diameter aerial pipeline high-altitude derusting device and its construction method |
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2018
- 2018-10-15 CN CN201821670008.9U patent/CN208759266U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079636A (en) * | 2018-10-15 | 2018-12-25 | 中国二十二冶集团有限公司 | Major diameter aerial pipeline high-altitude derusting device and its construction method |
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