CN208886254U - A kind of bell and spigot anti-corrosive steel tube - Google Patents
A kind of bell and spigot anti-corrosive steel tube Download PDFInfo
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- CN208886254U CN208886254U CN201821682550.6U CN201821682550U CN208886254U CN 208886254 U CN208886254 U CN 208886254U CN 201821682550 U CN201821682550 U CN 201821682550U CN 208886254 U CN208886254 U CN 208886254U
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- bell
- spigot
- steel tube
- bellmouth
- corrosive
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Abstract
The utility model provides a kind of bell and spigot anti-corrosive steel tube, it is related to tubing corrosion-resistant field, including steel pipe main body, the both ends of steel pipe main body are respectively arranged with the bellmouth and socket of structure cooperation, bellmouth includes outer guiding slope and straight working face, seal groove is surrounded on socket, need to dock two piece bell and spigot anti-corrosive steel tube passes through bellmouth respectively and socket carries out the flexible connection cooperation of slide-in type socket joint.In use, rubber seal is fitted into slot, flat-pushing slide-in bellmouth, it can avoid rubber seal horizontal displacement and rolling, ensure that the integrality of sealing.Also avoid that roll-in rubber seal in-position is inconsistent, compression ratio is different and the drainage made.After tested, the bearing capacity of steel pipe reaches 3.0MPa.The mode that hydraulic pump, oil cylinder, remote control control can be directlyed adopt in docking, had the advantages that installation speed is fast, installation quality is guaranteed, labor intensity reduces, saved manpower financial capacity.
Description
Technical field
The utility model provides a kind of bell and spigot anti-corrosive steel tube, is related to tubing corrosion-resistant field.
Background technique
With China's expanding economy, industrialization, urbanization bring water demand are significantly increased, and serious water shortage has become
The very important bottleneck of China's sustainable economic development.China is as the serious deficient country of per capita water resource in the world, water
It is unbalanced, spatial and temporal distributions it is unbalanced so that pipe long-distance water delivery become solve shortage of water one of effective measures.
The connection of conventional steel requires high, mounting cost height, installation speed to operator using welding, complex procedures
Slowly.The problem of subsequent anti-corrosion of welding junction is completed at engineering construction scene, and quality is difficult to ensure, becomes steel pipe pipeline is multiple
Key point.
Anti-corrosion traditional simultaneously mostly uses glass wool cloth and coating to carry out outer anti-corrosion, and interior anti-corrosion mostly uses different Coating material compositions
Anti-corrosion, demanding to drinking water safety also to need safe and non-toxic coating, this anti-corrosion form makes at the construction field (site), is constructed
Surrounding enviroment climatic effect is big, long construction period, and adhesive force is low and not can guarantee quality, and service life at high cost is short.
Utility model content
In order to solve problem above, the utility model provides a kind of bell and spigot anti-corrosive steel tube, in order to install, guarantees steel
Pipe quality.
The technical solution of the utility model is as follows: a kind of bell and spigot anti-corrosive steel tube, including steel pipe main body, the steel pipe main body
Both ends be respectively arranged with structure cooperation bellmouth and socket, the bellmouth includes outer guiding slope and straight working face, the socket
On be surrounded with seal groove, need to dock two piece bell and spigot anti-corrosive steel tube passes through bellmouth and socket respectively to carry out slide-in type and holds
Insert flexible connection cooperation.
Technical solutions of the utility model further include: the seal groove be laid with hot melt thermosetting epoxy resin powder and/
Or applying liquid epoxy resin.
Technical solutions of the utility model further include: the quantity of the seal groove is twice, and two seals ring recess is set in parallel
It sets.
Technical solutions of the utility model further include: the centre of the two seals ring recess is provided with pressurizing port, described to suppress
The quantity in hole is 1~2.
Technical solutions of the utility model further include: plastic-coated has interior erosion resistant coating to the inner wall of the bellmouth and socket respectively, described
Interior erosion resistant coating is epoxy resin erosion resistant coating, and the outer wall of the bellmouth and socket is respectively arranged with external anti-corrosion layer, the external anti-corrosion layer
For 3PE composite anti-corrosive structure, the bottom of the 3PE composite anti-corrosive structure is hot melt thermosetting epoxy resin powder, and middle layer is
Gluing oxidant layer, outer layer are high-density polyethylene layer.
Technical solutions of the utility model further include: the coating for inner wall of the steel pipe main body has interior erosion resistant coating, the interior anti-corrosion
Layer is epoxy resin erosion resistant coating, and the outer wall of the steel pipe main body is provided with external anti-corrosion layer, and the external anti-corrosion layer is 3PE composite anti-corrosive
Structure.
Technical solutions of the utility model further include: the interior erosion resistant coating and external anti-corrosion layer of the bell and spigot anti-corrosive steel tube are one
Forming structure.
Technical solutions of the utility model further include: the epoxy resin erosion resistant coating is hot melt thermosetting epoxy resin powder material
Material.
Technical solutions of the utility model further include: the epoxy resin erosion resistant coating with a thickness of 0.05mm~0.8mm, it is described
External anti-corrosion layer with a thickness of 1.8mm~6.0mm.
Technical solutions of the utility model further include: the bellmouth by by the pipe end cold expansion machine-shaping of steel pipe main body,
Or it is formed by shifting to an earlier date the prefabricated pipe end for being welded on steel pipe main body again.
The utility model has the following beneficial effects: the utility model provides a kind of bell and spigot anti-corrosive steel tube, using slide-in type
Socket joint flexible interface, and seal groove is provided on socket, rubber seal is fitted into slot, flat-pushing slide-in bellmouth.It is this
Mode can avoid rubber seal horizontal displacement and rolling, ensure that the integrality of sealing.Also avoid roll-in rubber
Sealing ring in-position is inconsistent, and compression ratio is different and the drainage made.After tested, the bearing capacity of steel pipe reaches
3.0MPa。
And due to the change of docking mode, the side that hydraulic pump, oil cylinder, remote control control can be directlyed adopt in docking
Formula, gets rid of bottle gouard moved by hands, hand removes the mounting means that cucurbit adds man efficiency low, has that installation speed is fast, installation quality has guarantor
Card, labor intensity reduce, save the advantages of manpower financial capacity.
Detailed description of the invention
Fig. 1 is the utility model birdsmouth anti-corrosive steel tube structural schematic diagram；
Fig. 2 is the utility model birdsmouth anti-corrosive steel tube schematic cross-sectional view；
Fig. 3 is the utility model seal groove structural schematic diagram.
Wherein, steel pipe main body 1, socket 2, seal groove 21, bellmouth 3, external anti-corrosion layer 4, interior erosion resistant coating 5.
Specific embodiment
The utility model is described further below in conjunction with drawings and examples.
Simultaneously as only section Example described below, in the absence of conflict, embodiment in the application and
Feature in embodiment can be combined with each other.
Embodiment one
As shown in Figures 1 to 3, the both ends of 2 anti-corrosive steel tube of bell and spigot, including steel pipe main body 1, the steel pipe main body 1 are set respectively
Be equipped with the bellmouth 3 and socket 2 of structure cooperation, the bellmouth 3 by by the pipe end cold expansion machine-shaping of steel pipe main body 1, including
Outer guiding slope and straight working face are surrounded with twice seal groove 21 disposed in parallel, the seal groove on the socket 2
21 are laid with hot melt thermosetting epoxy resin powder and/or applying liquid epoxy resin.
When in use, two 2 anti-corrosive steel tubes of bell and spigot that need to be docked pass through bellmouth 3 respectively and socket 2 carries out slide-in type and holds
Insert flexible connection.
The present embodiment uses slide-in type socket joint flexible interface mode.Two seals ring recess 21 is arranged in socket 2.In docking
Before, rubber seal is fitted into seal groove 21, flat-pushing slide-in bellmouth 3.This mode can avoid rubber seal horizontal position
It moves and rolls, ensure that the integrality of sealing.It is inconsistent to also avoid roll-in rubber seal in-position, compression ratio
The different and drainage made.
Simultaneously using double rubber sealing forms.Achievable interface is independently suppressed, it is ensured that everywhere socket joint connects in installation process
The quality control of mouth, after tested, the bearing capacity of steel pipe reaches 3.0MPa.
Due to the change of docking mode, the mode that hydraulic pump, oil cylinder, remote control control can be directlyed adopt in docking,
Get rid of bottle gouard moved by hands, hand removes the mounting means that cucurbit adds man efficiency low, have installation speed is fast, installation quality is guaranteed,
Labor intensity reduces, saves the advantages of manpower financial capacity.
Embodiment two
The centre of the two seals ring recess 21 is provided with pressurizing port, and the quantity of the pressurizing port is 1~2, for managing
Interface pressure testing after road installation.
Embodiment three
Plastic-coated has interior erosion resistant coating 5 to the inner wall of the bellmouth 3 and socket 2 respectively, and the interior erosion resistant coating 5 is epoxy resin anti-corrosion
The outer wall of layer, the bellmouth 3 and socket 2 is respectively arranged with except 21 part of external anti-corrosion layer 4(seal groove), the external anti-corrosion layer
4 be 3PE composite anti-corrosive structure, and the bottom of the 3PE composite anti-corrosive structure is hot melt thermosetting epoxy resin powder, and middle layer is
Gluing oxidant layer, outer layer are high-density polyethylene layer.
Preferably, the epoxy resin erosion resistant coating is hot melt thermosetting epoxy resin dusty material.
Example IV
The coating for inner wall of the steel pipe main body 1 has interior erosion resistant coating 5, and the interior erosion resistant coating 5 is epoxy resin erosion resistant coating, described
The outer wall of steel pipe main body 1 is provided with external anti-corrosion layer 4, and the external anti-corrosion layer 4 is 3PE composite anti-corrosive structure.
The epoxy resin erosion resistant coating with a thickness of 0.05mm~0.8mm, the external anti-corrosion layer 4 with a thickness of 1.8mm~
6.0mm。
The interior erosion resistant coating 5 of 2 anti-corrosive steel tube of bell and spigot is an integral molding structure with external anti-corrosion layer 4, from bell and spigot 2 to
Steel pipe, erosion resistant coating integral manufacturing, no overlap joint make anti-corrosion effect is available to be effectively ensured.
When processing, the coating epoxy resin erosion resistant coating synchronous with the inner wall of socket 2 and spiral welded pipe of bellmouth 3.
Embodiment five
The base tube of 2 anti-corrosive steel tube of bell and spigot is spiral seam steel pipe submerged arc, and spiral welded steel pipe both ends are welded steel respectively and hold
Mouthfuls 3 and steel socket 2, it the bellmouth 3 or is formed by shifting to an earlier date the prefabricated pipe end for being welded on steel pipe main body 1 again.
2 steel pipe of this bell and spigot has the following characteristics that
The advantage of 2 steel-tube construction of bell and spigot:
(1) connection type: slide-in type socket joint flexible interface mode is used.Two seals ring recess 21 is arranged in socket 2.By rubber
Sealing ring is fitted into slot, flat-pushing slide-in bellmouth 3.This mode can avoid rubber seal horizontal displacement and rolling, so that it is guaranteed that
The integrality of sealing.Also avoid that roll-in rubber seal in-position is inconsistent, compression ratio is different and the leak made is existing
As.
(2) using double rubber sealing forms.Achievable interface is independently suppressed, it is ensured that everywhere bell socket in installation process
Quality control.
(3) bearing capacity reaches 3.0MPa
(4) mounting means: by the way of hydraulic pump, oil cylinder, remote control control, bottle gouard moved by hands is got rid of, hand removes calabash
The mounting means that reed adds man efficiency low, with installation speed is fast, installation quality is guaranteed, labor intensity reduces, saves manpower
The advantages of financial resources.
(5) it adapts to the sedimentation of uneven geology and antidetonation and tubing expands with heat and contract with cold demand: having fully considered the uneven of ground
The influence that sedimentation and earthquake and tubing expand with heat and contract with cold to pipeline performance safety can meet by adjusting 2 depth of bell and spigot and length
Greater angle seal request.
The advantage of aseptic technic:
(1) anti-corrosion mode: interior erosion resistant coating 5 uses plastic-coated mode, and interior painting thermosetting epoxy resin dusty material, outer anti-corrosion are adopted
With 3PE composite anti-corrosive structure, bottom is hot melt thermosetting epoxy resin powder, and middle layer is gluing oxidant layer, and outer layer is high density
Polyethylene layer.
(2) internal and external anti-corrosive of 2 steel pipe of bell and spigot is all made of integrated molding mode, and from bell and spigot 2 to steel pipe, erosion resistant coating is whole
Production, no overlap joint, anti-corrosion effect is available to be effectively ensured.
(3) service life: due to all using high molecular material, in the inside and outside ball blast technology plus modernization and efficiently
Coating equipment, the service life of product are 30-50 years.
(4) coefficient of friction resistance: detecting through the Chinese Water Conservancy water power academy of sciences, and the range of the roughness n after plastic-coated is 0.0081-
Between 0.0089, median 0.0086 has good hydraulics, and the tubing high compared to roughness improves 15-30% water delivery
Ability, reduces investment outlay and operating cost.
(5) inside and outside impeller blasting, plastic-coated: the factorial production is realized.It ensure that plastic-coated quality improves coating again in this way
Speed.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, done any modifications, equivalent replacements, and improvements etc., should be included in this reality within the spirit and principle of the utility model
Within novel protection scope.
Claims (10)
1. a kind of bell and spigot anti-corrosive steel tube, it is characterised in that: including steel pipe main body (1), the both ends of the steel pipe main body (1) are distinguished
It is provided with the bellmouth (3) and socket (2) of structure cooperation, the bellmouth (3) includes outer guiding slope and straight working face, the socket
(2) seal groove (21) are surrounded on, the two bell and spigot anti-corrosive steel tubes that need to be docked pass through bellmouth (3) and socket respectively
(2) the flexible connection cooperation of slide-in type socket joint is carried out.
2. a kind of bell and spigot anti-corrosive steel tube as described in claim 1, it is characterised in that: the seal groove (21) is laid with heat
Molten thermosetting epoxy resin powder and/or applying liquid epoxy resin.
3. a kind of bell and spigot anti-corrosive steel tube as claimed in claim 2, it is characterised in that: the quantity of the seal groove (21) is
Twice, two seals ring recess (21) are arranged in parallel.
4. a kind of bell and spigot anti-corrosive steel tube as claimed in claim 3, it is characterised in that: in the two seals ring recess (21)
Between be provided with pressurizing port, the quantity of the pressurizing port is 1~2.
5. a kind of bell and spigot anti-corrosive steel tube as described in Claims 1-4 is any, it is characterised in that: the bellmouth (3) and socket
(2) plastic-coated has interior erosion resistant coating (5) inner wall respectively, the interior erosion resistant coating (5) be epoxy resin erosion resistant coating, the bellmouth (3) and
The outer wall of socket (2) is respectively arranged with external anti-corrosion layer (4), and the external anti-corrosion layer (4) is 3PE composite anti-corrosive structure, and the 3PE is multiple
The bottom for closing anticorrosion structure is hot melt thermosetting epoxy resin powder, and middle layer is gluing oxidant layer, and outer layer is high density polyethylene (HDPE)
Layer.
6. a kind of bell and spigot anti-corrosive steel tube as claimed in claim 5, it is characterised in that: the inner wall of the steel pipe main body (1) applies
Modeling has interior erosion resistant coating (5), and the interior erosion resistant coating (5) is epoxy resin erosion resistant coating, and the outer wall of the steel pipe main body (1) is provided with outer
Erosion resistant coating (4), the external anti-corrosion layer (4) are 3PE composite anti-corrosive structure.
7. a kind of bell and spigot anti-corrosive steel tube as claimed in claim 6, it is characterised in that: the interior of the bell and spigot anti-corrosive steel tube is prevented
Rotten layer (5) is an integral molding structure with external anti-corrosion layer (4).
8. a kind of bell and spigot anti-corrosive steel tube as claimed in claim 5, it is characterised in that: the epoxy resin erosion resistant coating is hot melt
Thermosetting epoxy resin dusty material.
9. a kind of bell and spigot anti-corrosive steel tube as claimed in claim 5, it is characterised in that: the thickness of the epoxy resin erosion resistant coating
For 0.05mm~0.8mm, the external anti-corrosion layer (4) with a thickness of 1.8mm~6.0mm.
10. a kind of bell and spigot anti-corrosive steel tube as described in claim 1, it is characterised in that: the bellmouth (3) is by by steel pipe master
The pipe end cold expansion machine-shaping of body (1), or formed by shifting to an earlier date the prefabricated pipe end for being welded on steel pipe main body (1) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821682550.6U CN208886254U (en) | 2018-10-17 | 2018-10-17 | A kind of bell and spigot anti-corrosive steel tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821682550.6U CN208886254U (en) | 2018-10-17 | 2018-10-17 | A kind of bell and spigot anti-corrosive steel tube |
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| Publication Number | Publication Date |
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| CN208886254U true CN208886254U (en) | 2019-05-21 |
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| CN201821682550.6U Active CN208886254U (en) | 2018-10-17 | 2018-10-17 | A kind of bell and spigot anti-corrosive steel tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253346A (en) * | 2018-10-17 | 2019-01-22 | 山东禹王管业有限公司 | A kind of bell and spigot anti-corrosive steel tube |
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2018
- 2018-10-17 CN CN201821682550.6U patent/CN208886254U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253346A (en) * | 2018-10-17 | 2019-01-22 | 山东禹王管业有限公司 | A kind of bell and spigot anti-corrosive steel tube |
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