CN101694257A - Large deflection loose tube compensation joint - Google Patents
Large deflection loose tube compensation joint Download PDFInfo
- Publication number
- CN101694257A CN101694257A CN200910210007A CN200910210007A CN101694257A CN 101694257 A CN101694257 A CN 101694257A CN 200910210007 A CN200910210007 A CN 200910210007A CN 200910210007 A CN200910210007 A CN 200910210007A CN 101694257 A CN101694257 A CN 101694257A
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- China
- Prior art keywords
- seal ring
- short pipes
- large deflection
- sealing rings
- loose tube
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Abstract
Disclosed is a large deflection loose tube compensation joint which comprises a cylindrical body. Two movable short pipes equipped with flanges pass through the inner portion of the body; connecting ends positioned on two sides of the body are respectively connected with pressure covers via bolts and screwed tightly via nuts, a circle of sealing strips are disposed on connecting surfaces of the body and the pressure covers; two retaining rings are respectively installed on the inner sides of two end surfaces of the body and sleeved on the outer sides of the short pipes, limit blocks are mounted on the short pipes; sealing rings mounted among the retaining rings and the pressure covers are U-shaped and embedded into rectangular grooves inside the pressure covers, the sealing rings contact with the outer walls of the short pipes, contacting surfaces of the sealing rings and the outer walls of the short pipes are cylindrical surfaces, O-shaped sealing strips are installed inside the sealing rings, projected lips are arranged on the inner surfaces of the upper portions of the sealing rings, the lips are capable of preventing the sealing strips from shedding off the sealing rings, thereby the sealing strips are capable of guaranteeing the sealing rings to produce continuous pre-tightening force on the outer walls of the short pipes and further ensuring tightness of the body and inner cavities of the short pipes.
Description
Technical field
The present invention relates to a kind of pipe connector lug.
Background technique
Serious owing to surface subsidence, vibrations are big, with a varied topography and seasonal variations and day and night the pipeline deflection that produces greatly of the temperature difference and expand with heat and contract with cold etc. all can pipeline be produced serious influence, so axial displacement and the deflection angle off-centre that compensator remedies pipeline must be set on the pipeline.Existing compensator mainly contains square-shaped joints, filler bushing type compensating joint, bellow expansion joint, L type compensator, Z type compensator and flexible pipe compensator.Square-shaped joints is sturdy and durable, and is reliable but the material amount of expending is big, and floor space is big, makes the heavy caliber square-shaped joints and expends man-hour, thereby be applicable to pipeline small-bore, high pressure; Filler bushing type compensating joint compact structure, floor space is little, but because the rebound elasticity of filler is poor, forms water clock easily, needs often maintenance, changes filler; The bellow expansion joint compact structure, good seal performance, high temperature resistant, corrosion-resistant, but its compensation rate is less; Gland loose tube compensation joint and flange loose tube compensation joint among flexible pipe joint such as the GB/T12465 " (pipeline loose tube compensation joint) ", rational in infrastructure, sealability is reliable, can compensate radial displacement, deflection angle and off-centre in the certain limit after the connection, but except that radial displacement, to less (the flexible amount: 2～3 ° of compensation rate of deflection angle, off-centre; Offset: 2～5mm).This compensating joint with regard to active demand a kind of energy big deflection angle of compensate for slower and off-centre satisfies the needs of the demand and the actual engineering in market, better protection pipeline.Large deflection loose tube compensation joint is to specialize in a kind of energy big deflection angle of compensate for slower (6 °～7 °) of exploitation and the connector of axial displacement at this situation.
Summary of the invention
The purpose of this invention is to provide a kind of large deflection pipe connector lug, the compensator material amount of expending that solves other pattern is big, floor space big, making expends man-hour; Filler bushing type compensating joint rebound elasticity is poor, forms water clock easily, needs often maintenance; The bellow expansion joint compensation rate is less; And the flexible pipe joint is to the compensation rate problem of smaller of deflection angle, off-centre.
The objective of the invention is to be achieved through the following technical solutions:
A kind of large deflection loose tube compensation joint comprises columned body, and two movable short tubes with flange are passed in the inside of body, and described flange is positioned at the both ends of the surface of short tube; Connecting end in the body both sides is connected with bolt with a gland respectively, and uses nut screwing clamping, and the junction surface of body and gland is provided with a circle Stamping Steel Ribbon; The both ends of the surface inboard of body is installed a back-up ring respectively, and described shield ring sleeve is connected on the outside of described short tube, and on short tube a limiting stopper is installed, and limiting stopper and back-up ring form and disturb, thereby stops short tube slippage from body; Between back-up ring and the described gland seal ring is installed, described seal ring is the U type, embed in the rectangle groove of gland inside, seal ring contacts with the outer wall of short tube, and the surface of contact of seal ring and short tube outer wall is the cylndrical surface, at the inner O type Stamping Steel Ribbon of installing of seal ring, and be provided with a lip that protrudes in the upper inside surface of seal ring, lip can prevent that Stamping Steel Ribbon from coming off from seal ring, and Stamping Steel Ribbon can guarantee that seal ring produces the pretightening force that continues to the short tube outer wall, and then guarantees the sealing of body and short tube inner chamber.
Description of drawings
With embodiment the present invention is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the cut-away view of large deflection loose tube compensation joint of the present invention;
Fig. 2 is the partial enlarged drawing of large deflection loose tube compensation joint of the present invention;
Fig. 3 is the mounting structure figure of seal ring, Stamping Steel Ribbon.
Among the figure:
1, short tube; 2, gland; 3, Stamping Steel Ribbon; 4, bolt; 5, nut; 6, body; 7, limiting stopper; 8, back-up ring; 9, Stamping Steel Ribbon; 10, seal ring; 11, lip.
Embodiment
As shown in Figure 1, 2, a kind of large deflection loose tube compensation joint of the present invention comprises columned body 6, and two movable short tubes 1 with flange are passed in the inside of body 6, and described flange is positioned at the both ends of the surface of short tube 1; Connecting end in body 6 both sides is connected with bolt 4 with a gland respectively, and tightens with nut 5, and body 6 is provided with a circle Stamping Steel Ribbon 3 with the junction surface of gland 2; The both ends of the surface inboard of body 6 is installed a back-up ring 8 respectively, and described back-up ring 8 is socketed in the outside of described short tube 1, and on short tube 1 limiting stopper 7 is installed, and limiting stopper 7 forms with back-up ring 8 and disturbs, thereby stops short tube 1 slippage from body 6; Seal ring 10 is installed between back-up ring 8 and the described gland 2, described seal ring 10 is the U type, embeds in the rectangle groove of gland 2 inside, and seal ring 10 contacts with the outer wall of short tube 1, and seal ring 10 is the cylndrical surface with the surface of contact of short tube 1 outer wall, at the seal ring 10 inner O type Stamping Steel Ribbons of installing.
As shown in Figure 3, upper inside surface at seal ring 10 is provided with a lip 11 that protrudes, lip 11 can prevent that Stamping Steel Ribbon from coming off from seal ring 10, and Stamping Steel Ribbon 9 can guarantee that 10 pairs of short tube 1 outer walls of seal ring produce the pretightening force that continues, and then guarantees the sealing of body 6 and short tube 1 inner chamber.
The key technology of large deflection loose tube compensation joint product is sealing, and in order to guarantee this standardized product going slick property, stationarity and do not have leakage in pipeline, appearing at of these technical performances depends on design to a great extent and produce good seal arrangement.This joint sealing device research is solution activity place leakage problem.This standardized product stops up leakage way with " U " type rubber seal, stop dielectric leakage, its sealing mechanism is: seal ring is packed in the cavity volume that gland, short tube flange and back-up ring form, rely on the screwing force compresses seal of bolt, nut, reach the purpose of organizing dielectric leakage thereby make seal ring generation resiliently deformable be close to cavity volume.This seal style is simple, reliable.Rely on the resiliently deformable of seal ring, in the time of guaranteeing the compensation pipeline takes place in allowing deformation band displacement and do not leak.
Claims (5)
1. a large deflection loose tube compensation joint comprises columned body, and two movable short tubes with flange are passed in the inside of body, and described flange is positioned at the both ends of the surface of short tube; Connecting end in the body both sides is connected with bolt with a gland respectively, and uses nut screwing clamping; The both ends of the surface inboard of body is installed a back-up ring respectively, and described shield ring sleeve is connected on the outside of described short tube, and on short tube a limiting stopper is installed; Between back-up ring and the described gland seal ring is installed, is it is characterized in that, described seal ring is the U type, and seal ring contacts with the outer wall of short tube, and the surface of contact of seal ring and short tube outer wall is the cylndrical surface.
2. large deflection loose tube compensation joint according to claim 1 is characterized in that, at the inner O type Stamping Steel Ribbon of installing of seal ring.
3. large deflection loose tube compensation joint according to claim 2 is characterized in that, is provided with the lip of a protrusion in the upper inside surface of seal ring.
4. large deflection loose tube compensation joint according to claim 1 is characterized in that, the junction surface of body and gland is provided with a circle Stamping Steel Ribbon.
5. large deflection loose tube compensation joint according to claim 1 is characterized in that, embeds in the rectangle groove of gland inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910210007A CN101694257A (en) | 2009-11-03 | 2009-11-03 | Large deflection loose tube compensation joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910210007A CN101694257A (en) | 2009-11-03 | 2009-11-03 | Large deflection loose tube compensation joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101694257A true CN101694257A (en) | 2010-04-14 |
Family
ID=42093244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910210007A Pending CN101694257A (en) | 2009-11-03 | 2009-11-03 | Large deflection loose tube compensation joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101694257A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644419A (en) * | 2013-11-20 | 2014-03-19 | 苏州蓝王机床工具科技有限公司 | Axial length compensation type pipe joint |
| CN104832727A (en) * | 2014-02-11 | 2015-08-12 | 上海中林给水材料有限公司 | Large-deflection steel pulling-off-prevention expansion joint |
| CN110553106A (en) * | 2019-09-27 | 2019-12-10 | 广船国际有限公司 | Movable pipeline structure, setting method and ship |
-
2009
- 2009-11-03 CN CN200910210007A patent/CN101694257A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644419A (en) * | 2013-11-20 | 2014-03-19 | 苏州蓝王机床工具科技有限公司 | Axial length compensation type pipe joint |
| CN104832727A (en) * | 2014-02-11 | 2015-08-12 | 上海中林给水材料有限公司 | Large-deflection steel pulling-off-prevention expansion joint |
| CN110553106A (en) * | 2019-09-27 | 2019-12-10 | 广船国际有限公司 | Movable pipeline structure, setting method and ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100414 |