CN205640013U - Detachable pressure steel pipe telescopic joint of flanged union - Google Patents
Detachable pressure steel pipe telescopic joint of flanged union Download PDFInfo
- Publication number
- CN205640013U CN205640013U CN201620360511.9U CN201620360511U CN205640013U CN 205640013 U CN205640013 U CN 205640013U CN 201620360511 U CN201620360511 U CN 201620360511U CN 205640013 U CN205640013 U CN 205640013U
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- ring
- pressure steel
- corrugated tube
- flanged
- articulation
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Abstract
The utility model relates to a detachable pressure steel pipe telescopic joint of flanged union, it includes interior sleeve pipe, outer tube, bellows and ripples core, wherein: interior sleeve pipe one end set up an inner tube flange joint pressure steel pipe, the outer tube suit including the sleeve pipe other end, and be provided with another pressure steel pipe of outer tube flange joint, be provided with seal assembly between the inside and outside sleeve pipe. Bellows one end welding including the sheathed tube tip, the other end through the union fixation that sets up on the outer tube, and on the wave base of above -mentioned bellows arranges the inner wall of outer tube in, the ripples core sets up between bellows and outer tube. The utility model discloses a sleeve type telescopic increases the structural style of dress bellows in the festival, form an inferior rigid body new construction, and is the detachable structure, can effective assurance not leak, need not not change the filler, has improved operation fail safe nature to have compensatory pressure steel pipe yin wendu and temperature sink and produce the ability of warping.
Description
Technical field
This utility model relates to liaison of penstock parts, refers in particular to a kind of detachable extension section for pressure steel pipeline of flanged articulation.
Background technology
Penstock is the important component part of hydroulic sturcture, and the telescopic joint safeguard construction that to be penstock important dress
Put.Existing telescopic joint is generally divided into: bushing type (material filling type), disc type (lens type), Wrinkled (corrugated).At present,
Generally using sleeve-type expansion joint and Wrinkled telescopic joint on China's hydraulic pipe, disc type telescopic joint is because of its axial bit shift compensation
Little and used by restriction.
Sleeve-type expansion joint has a bigger axial displacement compensation capability, and simple in construction is easy for installation, but easily leaks, and need through
Filler is changed in often maintenance, and operation maintenance workload is big.Wrinkled (corrugated) telescopic joint has certain axial bit shift compensation, does not lets out
Leakage, but security reliability is poor, particularly Large Diameter Pipeline, heavy wall steel plate forming technology difficulty very big, general engineering technology personnel are not
It is willing to use.
Summary of the invention
The purpose of this utility model is to be improved for shortcoming present in background technology and problem and innovate, it is provided that a kind of structure letter
Single, and penstock sealing and the detachable extension section for pressure steel pipeline of flanged articulation of displacement demand can be met.
The technical solution of the utility model is to construct a kind of telescopic joint being connected between two penstocks, and it includes inner sleeve, overcoat
Pipe, corrugated tube and wave core body, wherein: described inner sleeve one end arranges inner tube Flange joint one penstock, described trocar sheath
It is sleeved on the inner sleeve other end and is provided with another penstock of outer tube Flange joint, between described inside and outside sleeve pipe, being provided with sealing
Assembly.
Described corrugated tube one end is welded on the end of inner sleeve, and the other end is welded on the locating ring of trocar sheath, and above-mentioned corrugated tube
Wave base be placed on the inwall of trocar sheath, described wave core body is arranged between corrugated tube and trocar sheath.
Advantage of the present utility model and beneficial effect:
This utility model combines the advantage of existing telescopic joint, is installed in addition with the version of corrugated tube in using sleeve-type expansion joint, is formed
A kind of sub-rigid body new construction, and be dismountable structure, can be effectively ensured and not leak, filler need not be changed, improve operation safety
Reliability, and there is the ability that compensation penstock is deformed because of temperature and temperature-depression.
Accompanying drawing explanation
Fig. 1 is this utility model cross-sectional view.
Detailed description of the invention
Structure and working principle of the present utility model:
Corrugated tube of the present utility model is containment member, is welded in two steel pipe gaps, and its outer layer has trocar sheath to support, and seals simultaneously
Corrugated tube is provided with steady ripple facility, is i.e. provided with wave core body between corrugated tube and trocar sheath, can effectively solve seal bellows due to
The destabilization problems that external pressure causes, makes whole corrugated tube, wave core body and trocar sheath form sub-rigid body structure.
When telescopic joint normally works, corrugated tube, by internal water pressure, produces and expands or other deformation, due to by trocar sheath and ripple
The support of core body, therefore, suffered on corrugated tube intrinsic pressure can be delivered on trocar sheath by trocar sheath and wave core body completely.Ripple
Stricture of vagina pipe, in addition to having sealing function, also acts as the effect of transmission internal force.
Under telescopic joint is operated in super not normal pressure condition, intrinsic pressure when being far longer than design pressure, owing to corrugated tube belongs to shell structure,
Under the effect of super not normal pressure, bellow seal pipe produces deformation comprehensively, quite completely contacts with wave core body, and act against trocar sheath
On, make whole retractor device become an entirety, be combined into rigid body, under the rigidity of trocar sheath ensures, retractor device is entirely capable of
Enough bear super not normal interior pressure.Separately it is designed to the least because of the gap between corrugated tube and wave core body, therefore, the deflection of corrugated tube
The most limited, when interior pressure big the most to a certain extent time, the interior pressure suffered by corrugated tube is fully transmitted on trocar sheath through wave core body,
Stress increase in corrugated tube also will not be the biggest, it is ensured that will not produce rupturing of corrugated tube, ensure that the peace of retractor device from structure
Full reliability.
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is described more fully.In accompanying drawing
Give first-selected embodiment of the present utility model.But, this utility model can realize in many different forms, however it is not limited to
Embodiment described herein.On the contrary, provide the purpose of these embodiments be make disclosure of the present utility model more thorough
Comprehensively.
It should be noted that when element be considered as " setting " or " connection " on another element, it can be direct setting
Or be connected on another element or may be simultaneously present centering elements.
Unless otherwise defined, the technology people of all of technology used herein and scientific terminology and technical field of the present utility model
The implication that member is generally understood that is identical.Term used in the description is intended merely to describe concrete enforcement purpose, it is not intended that in limit
This utility model processed.
Embodiment:
As it is shown in figure 1, this telescopic joint includes inner sleeve 1, trocar sheath 2, corrugated tube 3, wave core body 4, piecemeal pressure ring 5, location
Ring 6, sealing ring 7, pressure ring 8, sealing ring 9, interior pipe flange 1-1, O-ring seals seal 1-2, outer pipe flange 2-1, O shape
Sealing ring seals 2-2.
Concrete, as it is shown in figure 1, inner sleeve 1 one end arranges interior pipe flange 1-1 connects a penstock 10, trocar sheath 2 overlaps
It is contained in inner sleeve 1 other end and is provided with outer pipe flange 2-1 and connects another penstock 11.Set between described inside and outside sleeve pipe
It is equipped with black box.
Described corrugated tube 3 one end is welded on the end of inner sleeve 1, and the other end is welded on the locating ring of trocar sheath, and above-mentioned ripple
The wave base of stricture of vagina pipe 3 is placed on the inwall of trocar sheath 2.Described wave core body 4 is arranged between corrugated tube 3 and trocar sheath 2.
Concrete, as it is shown in figure 1, articulation includes piecemeal pressure ring 5, the locating ring 6 being assemblied in piecemeal pressure ring 5, and arrange
Sealing ring 7 between piecemeal pressure ring 5 and locating ring 6.Wherein locating ring 6 welds with corrugated tube 3 one end, locating ring 6 and close
Seal 7 is fixed on trocar sheath 2 inwall by piecemeal pressure ring 5 bolt.
Concrete, as it is shown in figure 1, inner sleeve 1 is connected by the dismountable bolt of penstock 10 of interior pipe flange 1-1 with assembling
Connecing fixing, trocar sheath 2 is connected fixing by outer pipe flange 2-1 with the dismountable bolt of penstock 11 of assembling.
Concrete, as it is shown in figure 1, the black box between inside and outside sleeve pipe includes sealing member and pressure ring 8, and described sealing member leads to
Cross pressure ring 8 to be bolted on trocar sheath 2.Further, the sealing member of this embodiment is sealing ring 9.
Concrete, seal as it is shown in figure 1, be provided with O-ring seals between interior pipe flange 1-1 and the penstock flange being connected
1-2, is provided with O-ring seals and seals 2-2 between outer pipe flange 2-1 and the penstock flange being connected.
Concrete, corrugated tube 3 is unicast light-wall pipe, or many ripples light-wall pipe, as shown in Figure 1.
Concrete, as it is shown in figure 1, leave gap between corrugated tube 3 and wave core body 4.
Embodiment described in the utility model is only the description carrying out preferred implementation of the present utility model, not to this practicality
Novel spirit and scope are defined, on the premise of without departing from this utility model design philosophy, and engineers and technicians couple in this area
Various modification that the technical solution of the utility model is made and improvement, all should fall into protection domain of the present utility model, this utility model
The technology contents being claimed, all records in detail in the claims.
Claims (7)
1. the detachable extension section for pressure steel pipeline of flanged articulation, is connected between two penstocks, it is characterised in that include inner sleeve, trocar sheath, corrugated tube and wave core body, wherein:
Described inner sleeve one end arranges inner tube Flange joint one penstock, and described trocar sheath is sleeved on the inner sleeve other end and is provided with another penstock of outer tube Flange joint, is provided with black box between described inside and outside sleeve pipe；
Described corrugated tube one end is welded on the end of inner sleeve, and on the locating ring of the active joint that the other end is welded in trocar sheath, and the wave base of above-mentioned corrugated tube is placed on the inwall of trocar sheath, and described wave core body is arranged between corrugated tube and trocar sheath；
Described articulation includes piecemeal pressure ring, it is assemblied in the locating ring in piecemeal pressure ring, and the sealing ring being arranged between piecemeal pressure ring and locating ring, wherein: described locating ring welds with corrugated tube one end, described locating ring and sealing ring are fixed on outer sleeve inner wall by piecemeal junk ring bolt.
The detachable extension section for pressure steel pipeline of flanged articulation the most according to claim 1, it is characterized in that described inner sleeve is connected by interior pipe flange bolt dismountable with the penstock of assembling fixing, described trocar sheath is connected fixing by outer pipe flange bolt dismountable with the penstock of assembling.
The detachable extension section for pressure steel pipeline of flanged articulation the most according to claim 1, it is characterised in that the described black box between inside and outside sleeve pipe includes sealing member and pressure ring, and described sealing member is fixed on trocar sheath by junk ring bolt.
The detachable extension section for pressure steel pipeline of flanged articulation the most according to claim 3, it is characterised in that described sealing member is packing or sealing ring.
The detachable extension section for pressure steel pipeline of flanged articulation the most according to claim 1, it is characterized in that being provided with O-ring seals between described interior pipe flange and the penstock flange being connected seals, and is provided with O-ring seals and seals between described outer pipe flange and the penstock flange being connected.
The detachable extension section for pressure steel pipeline of flanged articulation the most according to claim 1, it is characterised in that described corrugated tube is unicast light-wall pipe, or many ripples light-wall pipe.
The detachable extension section for pressure steel pipeline of flanged articulation the most according to claim 1, it is characterised in that leave gap between described corrugated tube and wave core body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360511.9U CN205640013U (en) | 2016-04-21 | 2016-04-21 | Detachable pressure steel pipe telescopic joint of flanged union |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360511.9U CN205640013U (en) | 2016-04-21 | 2016-04-21 | Detachable pressure steel pipe telescopic joint of flanged union |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205640013U true CN205640013U (en) | 2016-10-12 |
Family
ID=57064007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620360511.9U Active CN205640013U (en) | 2016-04-21 | 2016-04-21 | Detachable pressure steel pipe telescopic joint of flanged union |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205640013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443619A (en) * | 2018-04-12 | 2018-08-24 | 中国葛洲坝集团股份有限公司 | Pressure steel pipe of hydropower station Bellows expansion joint installation method |
| CN109812629A (en) * | 2019-03-22 | 2019-05-28 | 贵州枫叶管业有限公司 | The improved device of double wall corrugated high-density polyethylene pipes |
-
2016
- 2016-04-21 CN CN201620360511.9U patent/CN205640013U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443619A (en) * | 2018-04-12 | 2018-08-24 | 中国葛洲坝集团股份有限公司 | Pressure steel pipe of hydropower station Bellows expansion joint installation method |
| CN109812629A (en) * | 2019-03-22 | 2019-05-28 | 贵州枫叶管业有限公司 | The improved device of double wall corrugated high-density polyethylene pipes |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |