CN101694259B - Maintenance-free bidirectional rotary compensator - Google Patents
Maintenance-free bidirectional rotary compensator Download PDFInfo
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- CN101694259B CN101694259B CN2009100356265A CN200910035626A CN101694259B CN 101694259 B CN101694259 B CN 101694259B CN 2009100356265 A CN2009100356265 A CN 2009100356265A CN 200910035626 A CN200910035626 A CN 200910035626A CN 101694259 B CN101694259 B CN 101694259B
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- pipe
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- gland
- locating flange
- shell
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Abstract
The invention discloses a maintenance-free bidirectional rotary compensator comprising filler glands and sealing filler, wherein the orifices of the filler glands which are arranged at two ends of a shell are sleeved; radial through holes and axial through holes, which are all evenly distributed on a boss in the shell and are communicated; one-way valves and air release valves are installed in the radial through hole at intervals; pin rollers are evenly distributed around a base angle of the outer end surface of the filler glands; the outer walls of a right pipe and a left pipe which have the same diameter are provided with circular beads, the right pipe and the left pipe are respectively inserted in the filler glands and the sealing filler, and an axial gap is remained at the joint of the ends of the two pipes. A locating flange is in clearance fit with the circular beads of the right pipe and the left pipe and is wider than the circular beads. The outer end surfaces of compression flanges align with axial through holes evenly distributed in an inner hole edge of the locating flange and a matched plug screw, and the inner end surfaces are provided with steel balls around the inner angle and in contact with the circular beads of the two pipes and the locating flange; the bolt passes through the compression flanges at two ends, the locating flange and the filler glands, which are also connected by nuts to form an external rolling bearing structure and a sealing structure; and the two pipes can freely rotate.
Description
Technical field
The present invention relates to a kind of compensation of pipeline device, specifically, the present invention relates to a kind of compensator that utilizes two-way rotational structure to realize the pipeline axial compensation.
Background technique
During engineering design, safe operation in order to ensure industrial pipe network, urban heating network, must be at pipe network appropriate position configuring pipes compensator, absorb or compensate axial displacement and the end thrust that pipe network internal cause medium temperature, pressure or variation of ambient temperature cause with this.Current, the pipeline compensator of using in the engineering has multiple structural type, all has certain compensating action, and practical application proves that the compensator synthesis compensation performance with rotational structure is best.The disclosed technological scheme of Chinese patent publication number CN101169206A " self-sealing rotary compensator " and publication number CN101338845A " rotating compensator for corrosion resistant pipeline and manufacture method and bucking-out system " is comparatively ripe, although some difference on both structures, but belong to a kind of whirl compensator together, its common trait is unidirectional rotational structure.Such compensator is formed a node with 2～3, utilizes the rotation of the relative opposite side pipeline in a side pipe road to absorb end thrust or compensating axial displacement.But the whirl compensator of prior art still comes with some shortcomings in practical application, the one, and single only compensator of unidirectional rotational structure can not be realized three-dimensional compensation, with 2～3 compensation effects of forming node competence exertion the best.The 2nd, rotational structure is among the medium, and rotatable parts easily lure erosion among being immersed in Korrosionsmedium for a long time, cause rotational structure malfunctioning.The 3rd, the flexibility of compensator sealing effect and rotation is a pair of contradiction, and the weighing apparatus that has much difficulty in healing is handled.The 4th, there is the reducer pipe member in the product of prior art, reducer pipe has a significant effect to media flow, significantly increases flow resistance, easily causes turbulent flow.
Summary of the invention
The present invention is primarily aimed at the deficiencies in the prior art, proposes a kind of rotational structure and does not contact with medium, and sealability and flexibility of revolution are independent of each other, and the efficient sealed maintenance-free bidirectional rotary compensator of the long-term maintenance of sealing configuration.
The present invention is achieved through the following technical solutions technical goal.
Maintenance-free bidirectional rotary compensator, it comprises right pipe, supported flange, locating flange, Gland, shell, one-way valve, stuffing box packing, nut, bolt, left side pipe and bleed valve.Described Gland interior edge face is a bell mouth shape.The axial stage casing of circle tubular housing endoporus is provided with annular boss, and Gland is installed in aperture, shell both sides.Its improvements are: the uniform roller of radially putting that is in place, ring base angle, described Gland exterior edge face, and angle is 10 °～30 ° between the adjacent roller axis, the cylinder of roller exceeds Gland exterior edge face 1～5mm.Described sealing material places the neutral gear place between Gland and the shell annular boss.Described right pipe and left side pipe are the isometrical pipe of Φ 60～Φ 1600mm, the axial stage casing of pipe outer wall is provided with annular shoulder, right pipe and left side pipe insert respectively in Gland and the stuffing box packing forms sealed frame structure, and Da Jie two pipe ends are provided with complementary step mutually, and lap-joint reserves axial clearance 3～15mm.Described locating flange is enclosed within outward on the annular shoulder of right pipe, left pipe, and both are Spielpassung, and the thickness of locating flange is greater than the wide 1.1～5.1mm of annular shoulder.Uniform 2～12 axial holes in described supported flange exterior edge face are facing to the endoporus limit of locating flange, the axial hole outside is provided with plug screw, supported flange interior edge face ring interior angle place setting-in steel ball, the supported flange of apportion both sides contacts with the annular shoulder and the locating flange exterior edge face of interior edge face with right pipe, left pipe, the supported flange at bolt-through two ends, locating flange and Gland, and connecting into external rolling bearing structure and sealing configuration by nut, right pipe, left pipe can rotate freely under the sealing situation separately.
In the said structure, outer casing inner wall circular step axial cross section is wide outside and narrow inside trapezoidal, and uniform 8～24 axial holes of circular step waist, outer shell outer wall are provided with radial hole and corresponding axial hole is linked up, and radial hole is installed one-way valve and bleed valve at interval.The whirl compensator run duration can replenish the elevated-temperature seal lubricant grease to sealing configuration by one-way valve, at any time to improve sealability.Bleed valve is linked up inside and outside the sealing configuration, and equilibrium air pressure reduces the excessive of elevated-temperature seal lubricant grease.Used sealing material is the solid high-purity flexible graphite stuffing that soaks into the elevated-temperature seal lubricant grease.
The present invention compared with prior art has following good effect:
1, external rotational structure is a rolling structure, and lubricating condition is good, rotation flexibly, and left side pipe and right pipe can rotate freely separately, adapts to pipeline inequality that both sides connect, do not compensate requirement in the same way;
2, external rotational structure does not contact with the interior medium of pipe, is difficult for being corroded and corrosion, keeps flexibility of revolution for a long time;
3, sealing configuration and rotational structure are separate, but each self-regulation, mutual noninterference;
4, replenish the elevated-temperature seal lubricant grease by one-way valve to sealing material, improve air-proof condition, reduce the wearing and tearing of sealing material, keep sealing configuration under the best outfit state, to work for a long time, realize non-maintaining purpose;
5, not having reducer pipe in the structure, all is isometrical pipe, and MEDIA FLOW is unimpeded, and flow resistance is minimum.
Description of drawings
Fig. 1 is a structural profile schematic representation of the present invention.
Fig. 2 is a left side rolling bearing structure enlarged diagram.
Embodiment
Below with reference to the accompanying drawings and structure embodiment the invention will be further described.
Embodiment 1: maintenance-free bidirectional rotary compensator shown in Figure 1 is isometrical pipe bypass structure, and it comprises right pipe 1, supported flange 2, locating flange 3, Gland 4, shell 5, one-way valve 6, stuffing box packing 7, nut 8, bolt 9, left side pipe 10 and bleed valve 11.Shell 5 endoporus middle part is provided with annular boss, and Gland 4 is installed in aperture, shell 5 two ends.The uniform roller of radially putting 4.1 that is in place, ring base angle, Gland 4 exterior edge faces.Present embodiment is the compensator of 600mm bore, 1 roller 4.1 of the 18 ° of setting-ins in every interval on the Gland 4.The cylinder of roller 4.1 exceeds Gland 4 exterior edge face 2.5mm.Placing two axial cross sections of Gland 4 and annular boss composition in aperture, shell 5 two ends among the present invention is trapezoidal annular groove, and sealing material 7 is formed the part of sealing configuration for the solid high-purity flexible graphite stuffing that soaks into the elevated-temperature seal lubricant grease is placed in one.Described right pipe 1, the axial stage casing of pipe 10 outer walls, a left side are provided with annular shoulder, right pipe 1 and right pipe 10 insert Gland 4 and the sealing material 7 from the two ends order respectively forms sealed frame structure, the complementary step that two pipe ends overlap is mutually reserved 8mm axial clearance, is convenient to regulate the tightness of sealing material 7.10 annular shoulder Spielpassung is managed on the direct and right pipe 1 of locating flange 3 endoporus, a left side, and the thickness of locating flange 3 is greater than the wide 2.6mm of annular shoulder.Uniform 8 axial holes in supported flange 2 exterior edge faces are facing to the endoporus limit of locating flange 3, and the axial hole outside is provided with plug screw 2.1.Supported flange 2 interior edge face ring interior angle place setting-ins one circle steel ball 2.2 shown in Figure 2, the supported flange 2 of apportion both sides contacts with the annular shoulder and locating flange 3 exterior edge faces of interior edge face with right pipe 1, left side pipe 10, bolt 9 runs through supported flange 2, locating flange 3 and the Gland 4 at two ends, and connect into external rolling bearing structure and sealing configuration by nut 8, right pipe 1, left side pipe 10 can rotate freely under the sealing situation separately, unloading plug screw 2.1 can inject lubricant oil by axial hole, further improves the flexibility of revolution of rolling bearing structure.
The present invention is built-in circular step in shell 5, this step axial cross section is wide outside and narrow inside trapezoidal, present embodiment is provided with 12 axial holes at the circular step waist, shell 5 outer walls are provided with the equivalent radial hole and corresponding axial hole is linked up, and one-way valve 6 and bleed valve 11 are installed on radial hole at interval.Replenish the elevated-temperature seal lubricant grease for sealing material 7 by one-way valve 6 in good time,, reduce the wearing and tearing of sealing material 7, keep sealing configuration to work in the best condition for a long time, realize non-maintaining purpose to improve air-proof condition.Bleed valve 11 is linked up inside and outside the sealing configuration, and equilibrium air pressure reduces the excessive of elevated-temperature seal lubricant grease.
Embodiment 2: present embodiment is the small-sized compensator of Φ 60mm bore, and its structure is identical with embodiment 1.Because bore is less, the structure relative compact.Only partial parameters is adjusted in the present embodiment, for example, 1 roller 4.1 of Gland 30 ° of setting-ins in 4 every intervals, the cylinder of roller 4.1 exceeds Gland 4 exterior edge face 1mm.Right pipe 1 is managed the complementary step that 10 pipe ends are built mutually with a left side, reserves the adjusting that axial clearance 3mm has satisfied sealing configuration.Uniform 2 axial holes in supported flange 2 exterior edge faces are facing to the endoporus limit of locating flange 3, the axial hole outside is provided with plug screw 2.1, unload plug screw 2.1 and inject lubricant oil from 2 axial holes, satisfy roller 4.1 lubrication needs of enclosing setting-in on steel ball 2.2 and the Gland 4 of supported flange 2 interior edge face ring interior angle place setting-ins, it is more flexible to make it to roll.Locating flange 3 is set on the annular shoulder of right pipe 1, left side pipe 10, and the thickness of locating flange 3 guarantees that greater than the wide 1.1mm of annular shoulder it is to roll to cooperate that roller 4.1 outer cylinders cooperate with annular shoulder.The present embodiment assembling is identical with embodiment 1, and formed external rolling bearing structure and sealing configuration have identical functions.Present embodiment is provided with 8 axial holes at the built-in circular step waist of shell 5, shell 5 outer walls are provided with the equivalent radial hole and corresponding axial hole is linked up, on 4 relative radial direction through hole of intersection, one-way valve 6 is installed, bleed valve 11 is installed on other 4 radial direction through hole, replenish the elevated-temperature seal lubricant grease for sealing material 7 by 4 one-way valves 6,, reduce the wearing and tearing of sealing material 7 to improve air-proof condition, the long-term sealing configuration that keeps is worked in the best condition, realizes non-maintaining purpose.
Embodiment 3: present embodiment is the large-scale compensator of 1600mm bore, its structure is identical with embodiment 1, only big because of physical dimension, own wt is big, the load of being born is also bigger, pretend corresponding adjustment, at first the roller 4.1 with Gland 4 setting-ins is adjusted into 1 of 10 ° of setting-in in every interval, and roller 4.1 cylinders exceed Gland 4 outer end 5mm; Right pipe 1 is managed the complementary step that 10 pipe ends are built mutually with a left side, and preset clearance is 15mm; Uniform 12 axial holes in supported flange 2 exterior edge faces are facing to the endoporus limit of locating flange 3; The thickness of locating flange 3 is greater than the wide 5.1mm of annular shoulder; The built-in circular step waist of shell 5 is provided with 24 axial holes, and shell 5 outer walls are provided with the equivalent radial hole and corresponding axial hole is linked up, and radial hole is installed one-way valve 6 and bleed valve 11 respectively at interval.Above-mentioned relevant parameter adjustment does not change the original structure function, still has the identical technique effect with embodiment 1.
In sum, it is to guarantee that from structure rotational structure does not directly contact with medium that the present invention innovates part, is difficult for being corroded and corrosion, remains flexibility of revolution.The present invention is axial symplex structure, and the rotational structure of both sides is identical, and each spinning both can be in the same way, also can be reverse, but both equivalent, but also inequality.
The present invention does not limit to above-mentioned three embodiments, no matter its physical dimension changes and profile variation, as long as rotational structure is not direct and the medium contacting structure all drops in the protection domain of the present invention.
Claims (3)
1. maintenance-free bidirectional rotary compensator, it comprises right pipe (1), supported flange (2), locating flange (3), Gland (4), shell (5), one-way valve (6), stuffing box packing (7), nut (8), bolt (9), a left side pipe (10) and bleed valve (11); Described Gland (4) interior edge face is a bell mouth shape; The axial stage casing of circle tubular housing (5) endoporus is provided with annular boss, and Gland (4) is installed in shell (5) aperture, both sides; It is characterized in that: the uniform roller of radially putting (4.1) that is in place, ring base angle, described Gland (4) exterior edge face, angle is 10 °～30 ° between adjacent roller (4.1) axis, the cylinder of roller (4.1) exceeds Gland (4) exterior edge face 1～5mm; Described sealing material (7) places the neutral gear place between Gland (4) and shell (5) annular boss; Described right pipe (1) and left side pipe (10) are the isometrical pipe of Φ 60～Φ 1600mm, the axial stage casing of pipe outer wall is provided with annular shoulder, right pipe (1) and left side pipe (10) insert respectively forms sealed frame structure in Gland (4) and the stuffing box packing (7), Da Jie two pipe ends are provided with complementary step mutually, and lap-joint reserves axial clearance 3～15mm; Manage on the annular shoulder of (1), left side pipe (10) on the outer right side that is enclosed within of described locating flange (3), and both are Spielpassung, and the thickness of locating flange (3) is greater than the wide 1.1～5.1mm of annular shoulder; Uniform 2～12 axial holes in described supported flange (2) exterior edge face are facing to the endoporus limit of locating flange (3), the axial hole outside is provided with plug screw (2.1), supported flange (2) interior edge face ring interior angle place's setting-in steel ball (2.2), the supported flange of apportion both sides (2) is with interior edge face and right pipe (1), the annular shoulder and locating flange (3) exterior edge face of left side pipe (10) contact, bolt (9) runs through the supported flange (2) at two ends, locating flange (3) and Gland (4), and connect into external rolling bearing structure and sealing configuration by nut (8), right pipe (1), left side pipe (10) can rotate freely under the sealing situation separately.
2. maintenance-free bidirectional rotary compensator according to claim 1, it is characterized in that: the built-in circular step axial cross section of described shell (5) is wide outside and narrow inside trapezoidal, 8～24 of the uniform axial holes of circular step waist, shell (5) outer wall is provided with the equivalent radial hole and corresponding axial hole is linked up, and one-way valve (6) and bleed valve (11) are installed on radial hole at interval.
3. maintenance-free bidirectional rotary compensator according to claim 1 is characterized in that: described stuffing box packing (7) is for soaking into the solid high-purity flexible graphite stuffing of elevated-temperature seal lubricant grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100356265A CN101694259B (en) | 2009-09-28 | 2009-09-28 | Maintenance-free bidirectional rotary compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100356265A CN101694259B (en) | 2009-09-28 | 2009-09-28 | Maintenance-free bidirectional rotary compensator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101694259A CN101694259A (en) | 2010-04-14 |
| CN101694259B true CN101694259B (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100356265A Expired - Fee Related CN101694259B (en) | 2009-09-28 | 2009-09-28 | Maintenance-free bidirectional rotary compensator |
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| CN (1) | CN101694259B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615622B (en) * | 2013-12-22 | 2015-11-04 | 徐志强 | Gauze pad type thermal stress compensator |
| CN105485462A (en) * | 2016-02-16 | 2016-04-13 | 江苏威创能源设备有限公司 | Intelligent high-temperature and high-pressure rotation compensator |
| CN114263799B (en) * | 2021-12-29 | 2023-11-07 | 江苏润明机械设备有限公司 | Spherical compensator following pressure control connection tightness |
| CN114198585A (en) * | 2022-02-17 | 2022-03-18 | 南京深度系统工程有限公司 | Length compensator with sealing detection function |
| CN117889280B (en) * | 2024-03-15 | 2024-05-28 | 泰州市贝特思管道装备有限公司 | Low-resistance bidirectional rotation compensator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2260944Y (en) * | 1996-11-30 | 1997-08-27 | 金光洙 | Double-way pipe compensator |
| JP2000320777A (en) * | 1999-05-10 | 2000-11-24 | Iura:Kk | Pipe fitting |
| CN201502829U (en) * | 2009-09-28 | 2010-06-09 | 江苏亿丰机械制造有限公司 | maintenance-free bidirectional rotary compensator |
-
2009
- 2009-09-28 CN CN2009100356265A patent/CN101694259B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2260944Y (en) * | 1996-11-30 | 1997-08-27 | 金光洙 | Double-way pipe compensator |
| JP2000320777A (en) * | 1999-05-10 | 2000-11-24 | Iura:Kk | Pipe fitting |
| CN201502829U (en) * | 2009-09-28 | 2010-06-09 | 江苏亿丰机械制造有限公司 | maintenance-free bidirectional rotary compensator |
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| Publication number | Publication date |
|---|---|
| CN101694259A (en) | 2010-04-14 |
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Granted publication date: 20110615 Termination date: 20130928 |