CN207989986U - A kind of complex abrasion-proof spoil disposal bend pipe - Google Patents
A kind of complex abrasion-proof spoil disposal bend pipe Download PDFInfo
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- CN207989986U CN207989986U CN201820386732.2U CN201820386732U CN207989986U CN 207989986 U CN207989986 U CN 207989986U CN 201820386732 U CN201820386732 U CN 201820386732U CN 207989986 U CN207989986 U CN 207989986U
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- bend pipe
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Abstract
A kind of complex abrasion-proof spoil disposal bend pipe, including steel outer tube, wear-resisting inner tube, joint flange and adhesive layer, wherein wear-resisting inner tube uses the high chromium cast iron material casting and forming through rare earth reinforced, and also there is certain toughness while reaching higher hardness through appropriate heat treatment technique, its steel outer tube is pressed into the symmetrical up and down two halves consistent with interior tube shape through mold using mild steel or steel alloy steel plate, it is welded again with joint flange after being set in interior tube outside butt welding being integral again, and using binder that the clearance filled connection of inner and outer pipe is integral.The utility model is compared with prior art, cast-steel bend wearability is low before overcoming, replace the high disadvantage of the frequency, have the characteristics that technical solution is reliable, wearability is good, service life is long, it is few to replace the frequency, both the bending requirement in dredger adjustment sludge discharge pipeline direction had been met, the characteristics of matching with the wear-resisting property of existing compound spoil disposal straight tube can be reached again, greatly reduce the use cost of whole pipeline.
Description
Technical field
It dredges sludge drainage system peculiar to vessel the utility model is related to one kind, more particularly to a kind of complex abrasion-proof row for spoil disposal of dredging
Mud bend pipe.
Background technology
Wear-resisting mud pipe is played as the prevailing traffic component on dredger by medium such as silt, gravel, stone under excavating
Block etc. is delivered to the effect in barge or specified region, and as indispensable for adjusting pipeline direction in entire sludge discharge pipeline
Bend pipe, most of so far still to be manufactured after appropriate heat treatment using cast steel material, hardness is about HRC30 or so, is averagely made
With the service life at 6~12 months, when such as gravel, coral coral reef have the medium of sharp corners for conveying, the service life is shorter, can be ground quickly
Wear, cause the shut-down of entire dredging work to be repaired or replaced, expend the valuable construction time, increase pipeline maintainance expense and
Idle cost.Patent CN201731185U discloses a kind of new complex abrasion-proof spoil disposal straight tube, solves original ordinary steel spoil disposal
Straight tube hardness is relatively low, service life is short (about 12 months), the problem of need to frequently replacing, and the service life under comprehensive operating mode is reachable
5 years or more, but and unresolved cast steel bend pipe hardness is low, problem that service life is short, lead to the replacement week of existing cast steel bend pipe
Phase is more prominent with the unmatched problem of composite straight pipe.Therefore, how on the basis of existing technology newly design and manufacture are a kind of
New bend pipe peculiar to vessel of dredging, makes it not only meet the purposes for adjusting feed-line direction, but also can reach and compound spoil disposal
The hardness of straight tube is close, and improves the use quality and service life of spoil disposal bend pipe comprehensively, reduces production cost, reduces damage of stopping work
It loses, improves Business Economic Benefit, this is still a project urgently to be resolved hurrily to those of ordinary skill in the art.
Invention content
In order to overcome the defect of the above-mentioned prior art, the purpose of this utility model is to provide a kind of complex abrasion-proof spoil disposal is curved
Pipe, had not only met the bending requirement for adjusting sludge discharge pipeline direction, but also can reach and connect with the wear-resisting property of compound spoil disposal straight tube
Closely, the use quality and service life of spoil disposal bend pipe are improved comprehensively, reduces production cost, reduces idle cost, improve enterprise's warp
Ji benefit.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of complex abrasion-proof spoil disposal bend pipe, including outer tube 2, inner tube 4, flange 1,5 and adhesive linkage 3, outer tube 2 are through being molded into
The symmetrical two halves of type, symmetrical two halves outer tube 2 are set in 4 outside of inner tube, and the gap between inner and outer pipes is linked to be by the filling of adhesive linkage 3
One whole bend pipe, whole bend pipe both ends are connected with flange 1,5.
Said inner tube 4 uses the high chromium cast iron material casting and forming through rare earth reinforced, while having more than HRC50 hardness
Also with toughness, and wall thickness δ 1 is designed as being more than the inner arc smaller with abrasion that be hit at the outer arc larger with abrasion that will be hit
Locate wall thickness δ 2.
The outer tube 2 is pressed into through mold above and below symmetrical after two halves using mild steel or steel alloy steel plate, then whole to being welded into
It is welded again with both ends joint flange after body.
The Integral bending bore D is 600~1200mm, and 1/ δ 2 of inner tube wall thickness δ are 25~50m, and 2 wall thickness δ 3 of outer tube is 10
The ratio of~25mm, whole bend pipe radius of curvature R and internal diameter D are 1.5：1, bending angle θ are wanted according to practical pipeline bending direction
It is selected between asking from 0 ° to 90 °.
The binder 3 includes resin, cement mortar or resin mortar mixture, and thickness δ 4 is 5~15mm, be can be used
Binder is filled into inside and outside ligament by gravitational method, high-pressure process or vacuum method.
The utility model has the advantage of：
1, mating with existing equipment, flange, pipeline support etc. need not reconfigure；
2, hardness is high, and wearability is good, and compared with normal steel casting bend pipe, service life increases by 4 times or more, and with it is existing novel
Compound spoil disposal straight tube hardness match so that the replacing construction of whole pipeline reaches unanimity.
3, unit excavation earth volume consuming piping cost is low, and saves a large amount of pipeline maintenance replacing constructions, reduces and dredges
Ship idle cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model
Specific implementation mode
The utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of complex abrasion-proof spoil disposal bend pipe, including outer tube 2, inner tube 4, flange 1,5 and adhesive linkage 3, outer tube 2
It is through the symmetrical two halves of compression molding, symmetrical two halves outer tube 2 is set in 4 outside of inner tube, and the gap between inner and outer pipes passes through bonding
3 filling of layer is linked to be a whole bend pipe, and whole bend pipe both ends are connected with flange 1,5.
Said inner tube 4 uses the high chromium cast iron material casting and forming through rare earth reinforced, while having more than HRC50 hardness
Also with toughness, and wall thickness δ 1 is designed as being more than the inner arc smaller with abrasion that be hit at the outer arc larger with abrasion that will be hit
Locate wall thickness δ 2.
The outer tube 2 is pressed into through mold above and below symmetrical after two halves using mild steel or steel alloy steel plate, then whole to being welded into
It is welded again with both ends joint flange after body.
The Integral bending bore D is 600~1200mm, and 1/ δ 2 of inner tube wall thickness δ are 25~50m, and 2 wall thickness δ 3 of outer tube is 10
The ratio of~25mm, whole bend pipe radius of curvature R and internal diameter D are 1.5：1, bending angle θ are wanted according to practical pipeline bending direction
It is selected between asking from 0 ° to 90 °.
The binder 3 includes resin, cement mortar or resin mortar mixture, and thickness δ 4 is 5~15mm, be can be used
Binder is filled into inside and outside ligament by gravitational method, high-pressure process or vacuum method.
The typical manufacturing process of the utility model is as follows, referring to Fig.1：
1, use δ 3 for the Q345B steel plates of 16mm through blanking, die mould at two halves symmetrical above and below, bending angle θ is 90 °, curved
Bilge radius R is 1500mm；
2, using the high chromium cast iron material through rare earth reinforced through die casting at inner tube, internal diameter D is 1000mm, is bent outer arc
It is 45mm to locate wall thickness δ 1, and it is 35mm to be bent wall thickness δ 2 at inner arc, and is heat-treated to it, and hardness is controlled in HRC50~55, is made
Inner tube has good wearability and certain toughness；
3, symmetrical two halves outer tube sleeve is loaded on interior tube outside, adjustment inner and outer pipes gap delta 4 is 7mm, outer tube is welded integral
It is welded again with both ends joint flange afterwards；
4, binder is filled in inner and outer pipes gap location high-pressure process, binder selects epoxy resin；
5, after the completion of waiting for that entirety is compound, finished product is dimensioned to by layout design.
Utility model works principle and feature are as follows：
1, since the technical solution adopted in the utility model is antiwear high-chromium cast iron inner tube+mild steel/steel alloy outer tube
Combined type bend pipe can give full play to the excellent wear-resisting property of high chromium cast iron material and excellent solderable of mild steel/steel alloy outer tube
Connecing property, shock resistance.Through real ship probationary certificate, which can fully meet the bending requirement in sludge discharge pipeline direction,
There is very high hardness and wear-resisting property again, reach the characteristic to match with the hardness of compound spoil disposal straight tube so that whole spoil disposal
The replacing construction of pipeline reaches unanimity, and can reduce bend pipe and replace the frequency and use cost, reduce idle cost.
2, bend pipe described in the utility model is taken on the basis of inner tube uses rare earth antiwear high-chromium cast iron material, is hit
It is designed as, more than being hit and wearing wall thickness δ 2 at smaller inner arc, further enhancing this with wall thickness δ 1 at larger outer arc is worn
Wear-resisting property and impact resistance at elbow bending stress described in utility model improve service life.
3, the utility model is that have the technical solution of binder in the gap filling of inner tube and outer tube, makes inner and outer pipes effectively
It links together, so that inner tube load and impact force etc. is equably transmitted to outer tube, and reduce vibration, not only sending out outer layer pipe
Under the conditions of waving due erection joint flange and the design function of protection inner tube, while being the wear-resisting property for improving inner tube and resistance to punching
It hits performance, improve condition and chance that service life provides a release and buffering.
Claims (5)
1. a kind of complex abrasion-proof spoil disposal bend pipe, which is characterized in that including outer tube (2), inner tube (4), flange (1,5) and adhesive linkage
(3), outer tube (2) is through the symmetrical two halves of compression molding, and symmetrical two halves outer tube (2) is set in outside inner tube (4), between inner and outer pipes
Gap one whole bend pipe is linked to be by adhesive linkage (3) filling, whole bend pipe both ends are connected with flange (1,5).
2. a kind of complex abrasion-proof spoil disposal bend pipe according to claim 1, which is characterized in that said inner tube (4) is using through dilute
The high chromium cast iron material casting and forming that soil is strengthened also with toughness while with more than HRC50 hardness, and will be hit and grind
Wall thickness δ 1 at larger outer arc is damaged to be designed as more than wall thickness δ 2 at the inner arc smaller with abrasion that be hit.
3. a kind of complex abrasion-proof spoil disposal bend pipe according to claim 1, which is characterized in that the outer tube (2) uses low-carbon
Steel or steel alloy steel plate after mold is pressed into symmetrical two halves up and down, then butt welding it is integral after welded again with both ends joint flange.
4. a kind of complex abrasion-proof spoil disposal bend pipe according to claim 1, which is characterized in that the Integral bending bore D is
1/ δ 2 of 600~1200mm, inner tube wall thickness δ is 25~50m, and outer tube (2) wall thickness δ 3 is 10~25mm, whole bend pipe radius of curvature R
Ratio with internal diameter D is 1.5：1, bending angle θ require to select between from 0 ° to 90 ° according to practical pipeline bending direction.
5. a kind of complex abrasion-proof spoil disposal bend pipe according to claim 1, which is characterized in that the adhesive linkage (3) includes tree
Fat, cement mortar or resin mortar mixture, thickness δ 4 are 5~15mm, will be bonded using gravitational method, high-pressure process or vacuum method
Agent is filled into inside and outside ligament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820386732.2U CN207989986U (en) | 2018-03-21 | 2018-03-21 | A kind of complex abrasion-proof spoil disposal bend pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820386732.2U CN207989986U (en) | 2018-03-21 | 2018-03-21 | A kind of complex abrasion-proof spoil disposal bend pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989986U true CN207989986U (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820386732.2U Active CN207989986U (en) | 2018-03-21 | 2018-03-21 | A kind of complex abrasion-proof spoil disposal bend pipe |
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| CN (1) | CN207989986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306377A (en) * | 2020-01-16 | 2020-06-19 | 山东东宏管业股份有限公司 | Steel wire mesh framework polyethylene composite pipe joint, connecting device and processing method |
-
2018
- 2018-03-21 CN CN201820386732.2U patent/CN207989986U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306377A (en) * | 2020-01-16 | 2020-06-19 | 山东东宏管业股份有限公司 | Steel wire mesh framework polyethylene composite pipe joint, connecting device and processing method |
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