CN205639971U - Sealing washer type pressure steel pipe telescopic joint - Google Patents
Sealing washer type pressure steel pipe telescopic joint Download PDFInfo
- Publication number
- CN205639971U CN205639971U CN201620360514.2U CN201620360514U CN205639971U CN 205639971 U CN205639971 U CN 205639971U CN 201620360514 U CN201620360514 U CN 201620360514U CN 205639971 U CN205639971 U CN 205639971U
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- China
- Prior art keywords
- pressure steel
- steel pipe
- trocar sheath
- corrugated tube
- bellows
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Abstract
The utility model relates to a sealing washer type pressure steel pipe telescopic joint, it includes interior sleeve pipe, outer tube, bellows and ripples core, wherein: interior sleeve pipe one end connection pressure steel pipe, the sleeve pipe other end and connect another pressure steel pipe including the outer tube suit, and be provided with the seal structure who forms by sealing washer and clamping ring between the inside and outside sleeve pipe. Sheathed tube tip including the bellows one end welding, other end welding bushing's pressure steel pipe's outside tip, and on the wave base of bellows arranges the inner wall of outer tube in, the ripples core sets up between bellows and outer tube. The utility model discloses the advantage of having synthesized current telescopic joint, the structural style who adopts sleeve type telescopic to increase the dress bellows in the festival forms an inferior rigid body new construction, does not leak from structural assurance, 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 sealing ring extension section for pressure steel pipeline.
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 sealing ring extension section for pressure steel pipeline 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 connects penstock, and it is another that described trocar sheath is sleeved on inner sleeve
One end also connects another penstock, and be provided with the sealing structure being made up of sealing ring and pressure ring between described inside and outside sleeve pipe.
Described corrugated tube one end is welded on the end of inner sleeve, and the other end is welded on the end of the penstock that trocar sheath connects, and
The wave base of corrugated tube is placed on the inwall of trocar sheath, and 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, ensures not leak from structure, need not change filler, improve property safe and reliable to operation, and have benefit
Repay the ability that 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, O-ring seals 5, pressure
Ring 6, O-ring seals 8, flange 2-1.
Concrete, as it is shown in figure 1, a penstock is welded in inner sleeve 1 one end, trocar sheath 2 be sleeved on inner sleeve 1 other end,
And connect and between another penstock 7, and inside and outside sleeve pipe, be provided with the sealing structure being made up of O-ring seals 5 and pressure ring 6.
Corrugated tube 3 one end is welded on the end of inner sleeve 1, and the other end is welded on the end of the penstock 7 that trocar sheath 2 connects, and 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, it is connected as it is shown in figure 1, trocar sheath 2 one end is provided with flange 2-1 with the adpting flange 7-1 bolt of penstock 7,
O-ring seals 5 and pressure ring 6 are arranged on trocar sheath 2 other end and are bolted.Further, described flange 2-1 with
It is provided with O-ring seals 8 between adpting flange 7-1 to seal.
Concrete, described corrugated tube is unicast light-wall pipe, or many ripples light-wall pipe.
Concrete, leave gap between described 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 (3)
1. seal a ring extension section for pressure steel pipeline, be 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 connects penstock, and described trocar sheath is sleeved on the inner sleeve other end and connects another penstock, and being provided with the sealing structure being made up of sealing ring and pressure ring between described inside and outside sleeve pipe；
Described corrugated tube one end is welded on the end of inner sleeve, and the other end is welded on the end of the penstock that trocar sheath connects, and the wave base of corrugated tube is placed on the inwall of trocar sheath, and described wave core body is arranged between corrugated tube and trocar sheath；
Described trocar sheath one end is provided with flange and is connected with the adpting flange bolt of penstock, and described sealing ring and pressure ring are arranged on the trocar sheath other end and are bolted；
Described sealing ring is O-ring seals；Described corrugated tube is many ripples light-wall pipe.
Sealing ring extension section for pressure steel pipeline the most according to claim 1, it is characterised in that be provided with O-ring seals between described flange and adpting flange and seal.
Sealing ring extension section for pressure steel pipeline 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 |
|---|---|---|---|
| CN201620360514.2U CN205639971U (en) | 2016-04-21 | 2016-04-21 | Sealing washer type pressure steel pipe telescopic joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360514.2U CN205639971U (en) | 2016-04-21 | 2016-04-21 | Sealing washer type pressure steel pipe telescopic joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639971U true CN205639971U (en) | 2016-10-12 |
Family
ID=57063733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620360514.2U Active CN205639971U (en) | 2016-04-21 | 2016-04-21 | Sealing washer type pressure steel pipe telescopic joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701412A (en) * | 2019-10-17 | 2020-01-17 | 长沙东屋机电有限责任公司 | Sub-rigid body structure expansion joint of pressure steel pipe of hydropower station |
-
2016
- 2016-04-21 CN CN201620360514.2U patent/CN205639971U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701412A (en) * | 2019-10-17 | 2020-01-17 | 长沙东屋机电有限责任公司 | Sub-rigid body structure expansion joint of pressure steel pipe of hydropower station |
| CN110701412B (en) * | 2019-10-17 | 2024-05-28 | 长沙东屋机电有限责任公司 | Expansion joint of sub-rigid structure of hydropower station pressure steel pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |