CN103277625B - A kind of balanced expansion joint for small size space - Google Patents
A kind of balanced expansion joint for small size space Download PDFInfo
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- CN103277625B CN103277625B CN201310230042.XA CN201310230042A CN103277625B CN 103277625 B CN103277625 B CN 103277625B CN 201310230042 A CN201310230042 A CN 201310230042A CN 103277625 B CN103277625 B CN 103277625B
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Abstract
For the balanced expansion joint in small size space, it comprises balance bellows and first, second work bellows, the first work bellows outboard end pipe seam first end plate, the first work bellows medial extremity pipe seam first ring flat-plate; Second work bellows outboard end pipe seam second end plate, the second work bellows medial extremity pipe seam second ring flat-plate; The secondary hinge plate of first end plate seam first, the hinged first main hinge plate of the first secondary hinge plate, the first main hinge plate end seam second ring flat-plate; The secondary hinge plate of second end plate seam second, the hinged second main hinge plate of the second secondary hinge plate, the second main hinge plate end seam first ring flat-plate; Balance bellows left end pipe seam first ring flat-plate, balance bellows right-hand member pipe seam second ring flat-plate.The present invention is used for L-type compensation of pipeline axis, lateral displacement and balance pressure, compared with prior art, greatly reduces structure space, has boundary dimension little, and function is complete, flexible for installation, can meet the features such as pipe space small size requirement.
Description
Technical field
The present invention relates to a kind of expansion joint, particularly a kind of balanced expansion joint for small size space, belong to pipe fitting technical field.
Background technique
Expansion joint utilizes the dilatation of bellows to carry out extraction duct system by the reason and produce the compensating element of dimensional changes such as expanding with heat and contract with cold, can extraction duct displacement and vibration, and counteracting forces, reduces noise.In industrial technology pipeline piping technology, process pipe is intricate, because pipe temperature, pressure change the thermal stress and physical descriptor that cause, expansion joint usually need be adopted to be compensated.Expansion joint is based on compensating axial, transverse direction and angular displacement three kinds of citation forms in actual applications, is respectively used to compensate straight pipeline, Z-type pipeline and L pipeline.Be then that profit makes to press in pipeline the thrust caused to keep balance by self structure as pressure balanced expansion joint, do not act on or seldom act on connected equipment, and can the bit shift compensation function of maintenance itself.Pressure balanced expansion joint is divided into: straight tube balance type, and it is for compensating and balance the axial displacement (comprising straight-tube pressure-balance, single entry bypass type and compound bypass type) in straight pipeline; Universal type (being commonly called as laterally large pull bar), for compensating and balancing Z-type and the ducted transverse stress of L-type; Hinge type and universal type (divide again single entry and compound), for compensating and balance Z-type and the ducted lateral pressure of L-type.Above-mentioned standard type straight-pipe balance type expansion joint, all because of its structural feature, required installing space is comparatively large, is subject to the limitation of application conditions, can not meets the particular/special requirement of craft piping technology.If as L-type pipeline compensating axial and lateral displacement normally will use hinge type expansion joint in pairs, two hinge type expansion joints need be arranged on horizontal pipeline and the vertical duct place of L-type pipeline respectively, like this, need to take larger structure space, if pipeline is in small size space, then installation requirement cannot be met.
Summary of the invention
The object of the invention is to the drawback overcoming prior art, provide a kind of balanced expansion joint for small size space, described expansion joint can be used for compensating L-type pipeline axial and lateral displacement and counteracting forces.
Problem of the present invention realizes with following technical proposals:
A kind of balanced expansion joint for small size space, its specialization is, it comprises balance bellows and is positioned at the first work bellows of the balance bellows left and right sides, the second work bellows, the first work bellows outboard end pipe seam first end plate, the first work bellows medial extremity pipe seam first ring flat-plate; Second work bellows outboard end pipe seam second end plate, the second work bellows medial extremity pipe seam second ring flat-plate; The secondary hinge plate of first end plate seam first, the hinged first main hinge plate of the first secondary hinge plate, the first main hinge plate end seam second ring flat-plate; The secondary hinge plate of second end plate seam second, the hinged second main hinge plate of the second secondary hinge plate, the second main hinge plate end seam first ring flat-plate; Balance bellows left end pipe seam first ring flat-plate, balance bellows right-hand member pipe seam second ring flat-plate.
The above-mentioned balanced expansion joint for small size space, described first main hinge plate, the second main hinge plate are positioned at same plane, first main hinge plate is fork-shaped, first main hinge plate is provided with U-groove bevel near balance bellows side, second main hinge plate is rectangle, and the second main hinge plate is positioned at U-groove bevel near balance bellows side.
The above-mentioned balanced expansion joint for small size space, the described bi-side of the second main hinge plate and the monolateral lateral clearance of U-groove bevel are 15-20 millimeter, the axial clearance 20-30 millimeter bottom the second main hinge plate end face and U-groove bevel.
The above-mentioned balanced expansion joint for small size space described first ring flat-plate is the plane of parallel second main hinge plate with the welding part of the second main hinge plate, the second ring flat-plate is the plane of parallel first main hinge plate with the welding part of the first main hinge plate.
The present invention is directed to common balanced expansion joint effect single, improve with the use of the problem taking structure space large, a kind of straight tube hinge balanced expansion joint with brand new is provided.Described expansion joint comprises two work bellowss, balance bellows with end plate, major-minor hinge plate and be connected bearing pin, above-mentioned component, by ingenious combination, constitutes a kind of compensating axial displacement of existing straight pipe pressure-balancing type expansion joint, counteracting forces function; The equilibrium swelling of two single entry planar hinge chain expansion joint offset angle displacement functions is had again to save.Described expansion joint can be used for L-type pipeline, compensating axial and lateral displacement and balance pressure, it can according to the structure space of L-type pipeline, select the horizontal pipeline or the vertical duct that are arranged on L-type pipeline, greatly reduce structure space, have boundary dimension little, function is complete, flexible for installation, the features such as pipe space small size requirement can be met.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is ring flat-plate schematic diagram.
In figure, each list of reference numerals is: 1, first work bellows outboard end pipe, 2, first end plate, 3, first secondary hinge plate, 4, first work bellows, 5, first main hinge plate, 5-1, U-groove bevel, 6, first work bellows medial extremity pipe, 7, first ring flat-plate, 8, balance bellows left end pipe, 9, balance bellows, 10, balance bellows right-hand member pipe, 11, second ring flat-plate, 12, second work bellows medial extremity pipe, 13, second work bellows, 14, second main hinge plate, 15, second secondary hinge plate, 16, second work bellows outboard end pipe, 17, second end plate.
Embodiment
Referring to Fig. 1, Fig. 2, the present invention is straight tube hinge balanced expansion joint, and it comprises balance bellows 9, and the left side of balance bellows arranges the first work bellows 4, and the right side of balance bellows arranges the second work bellows 13.First work bellows outboard end pipe 1 place's seam first end plate 2, first work bellows medial extremity pipe 6 seam first ring flat-plate 7; Second work bellows outboard end pipe 16 place's seam second end plate 17, second work bellows medial extremity pipe 12 place's seam second ring flat-plate 11.The secondary hinge plate of the secondary hinge plate 3, first of first end plate 2 seam first strides across balance bellows 9 by hinge first main hinge plate 5, first main hinge plate, its right part and the second ring flat-plate 11 seam; Hinged second main hinge plate 14, the second main hinge plate of the secondary hinge plate of second end plate 17 seam second secondary hinge plate 15, second strides across balance bellows 9, its left part seam first ring flat-plate 7.The middle part seam of balance bellows left end pipe 8 and the first ring flat-plate 7, the middle part seam of balance bellows right-hand member pipe 10 and the second ring flat-plate 11.
Still referring to Fig. 1, Fig. 2, the first main hinge plate 5, second main hinge plate 14 is positioned at same plane, and wherein, the first main hinge plate 5 is fork-shaped, and the first main hinge plate is provided with U-groove bevel 5-1 near balance bellows side; Second main hinge plate 14 is rectangle, and the second main hinge plate is positioned at the U-groove bevel of the first main hinge plate near balance bellows side.For ensureing that described expansion joint does not produce interference between two main hinge plates when compensate for displacement, each side of the second main hinge plate 14 and U-groove bevel 5-1 leave the lateral clearance of 15-20 millimeter respectively, leave the axial clearance of 20-30 millimeter bottom the second main hinge plate left end and U-groove bevel.
Firm for ensureing welding, the first ring flat-plate 7 being the plane of parallel second main hinge plate with the welding part of the second main hinge plate 14, the second ring flat-plate 11 is the plane of parallel first main hinge plate with the welding part of the first main hinge plate 5.First ring flat-plate, the second ring-plane structure are identical, and Fig. 3 is the schematic diagram of the first ring flat-plate.
The present invention can be used for L-type pipeline, compensating axial and lateral displacement and counteracting forces, it according to the structure space of L-type pipeline, can select the horizontal pipeline and the vertical duct that are arranged on L-type pipeline, and general selection is arranged on pipeline longer in both horizontal pipeline or vertical duct.Balance bellows, in overall structure, namely plays balanced action, plays again the effect of omnipotent equilibrium swelling joint intervalve.During described expansion joint absorption tube linear displacement, suppose that left end is fixed, expansion joint is compressed, first work bellows 4 of balance bellows 9 left end is compressed, by the first main hinge plate 5, balance bellows is stretched, compensating axial displacement, at this moment described expansion joint is the same with the effect of normal straight tube pressure balanced expansion joint.In first, second main hinge board plane, described expansion joint is quite a compound flat transverse hinge type expansion joint, middle balance bellows is equivalent to the intervalve of multiple hinge type expansion joint, just this intervalve is the middle adapter that can stretch at length direction, by the angular distortion of first, second work bellows of two ends, expansion joint reaches the effect absorbing pipeline lateral displacement.
Claims (3)
1. the balanced expansion joint for small size space, it is characterized in that, it comprises balance bellows (9) and is positioned at the first work bellows (4) of the balance bellows left and right sides, the second work bellows (13), the first work bellows outboard end pipe (1) seam first end plate (2), the first work bellows medial extremity pipe (6) seam first ring flat-plate (7); Second work bellows outboard end pipe (16) seam second end plate (17), the second work bellows medial extremity pipe (12) seam second ring flat-plate (11); The secondary hinge plate of first end plate (2) seam first (3), the hinged first main hinge plate (5) of the first secondary hinge plate, the first main hinge plate end seam second ring flat-plate (11); The secondary hinge plate of second end plate (17) seam second (15), the hinged second main hinge plate (14) of the second secondary hinge plate, the second main hinge plate end seam first ring flat-plate (7); Balance bellows left end pipe (8) seam first ring flat-plate (7), balance bellows right-hand member pipe (10) seam second ring flat-plate (11);
Described first main hinge plate (5), the second main hinge plate (14) are positioned at same plane, first main hinge plate (5) is fork-shaped, first main hinge plate is provided with U-groove bevel (5-1) near balance bellows side, second main hinge plate (14) is rectangle, and the second main hinge plate is positioned at U-groove bevel near balance bellows side.
2. the balanced expansion joint for small size space according to claim 1, it is characterized in that, the described bi-side of the second main hinge plate (14) and the monolateral lateral clearance of U-groove bevel (5-1) are 15-20 millimeter, the axial clearance 20-30 millimeter bottom the second main hinge plate end face and U-groove bevel.
3. the balanced expansion joint for small size space according to claim 2, it is characterized in that, described first ring flat-plate (7) is above the plane of parallel second main hinge plate with the welding part of the second main hinge plate (14), and the second ring flat-plate (11) is above the plane of parallel first main hinge plate with the welding part of the first main hinge plate (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310230042.XA CN103277625B (en) | 2013-06-09 | 2013-06-09 | A kind of balanced expansion joint for small size space |
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| CN201310230042.XA CN103277625B (en) | 2013-06-09 | 2013-06-09 | A kind of balanced expansion joint for small size space |
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| CN103277625A CN103277625A (en) | 2013-09-04 |
| CN103277625B true CN103277625B (en) | 2016-03-23 |
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| CN201310230042.XA Active CN103277625B (en) | 2013-06-09 | 2013-06-09 | A kind of balanced expansion joint for small size space |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883827A (en) * | 2014-03-17 | 2014-06-25 | 江苏曙光压力容器有限公司 | Integrated type rectangular compensator |
| CN106195508B (en) * | 2016-08-26 | 2017-12-08 | 洛阳双瑞特种装备有限公司 | A kind of compound universal coupling straight pipe pressure-balancing type expansion joint of staged arm-tie |
| CN106247066B (en) * | 2016-08-26 | 2017-12-08 | 洛阳双瑞特种装备有限公司 | A kind of composite plane hinge straight pipe pressure-balancing type expansion joint of staged arm-tie |
| CN110671569B (en) * | 2019-09-29 | 2021-05-14 | 江苏福盛机械管件有限公司 | Pressure compensator |
Citations (7)
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|---|---|---|---|---|
| DE1218821B (en) * | 1959-01-08 | 1966-06-08 | Demag Ag | Articulated corrugated pipe compensator |
| US5299840A (en) * | 1993-05-20 | 1994-04-05 | Hyspan Precision Products, Inc. | In-line pressure balanced universal expansion joint |
| CN201071999Y (en) * | 2007-09-26 | 2008-06-11 | 洛阳双瑞特钢科技有限公司 | Restriction type expansion joint for absorbing large axial and transverse complex displacement |
| CN201891976U (en) * | 2010-06-18 | 2011-07-06 | 洛阳双瑞特种装备有限公司 | Improved straight-pipe pressure balanced expansion joint |
| CN201934844U (en) * | 2011-01-28 | 2011-08-17 | 北京兴达波纹管有限公司 | Pressure balance universal hinge type corrugated compensator for straight pipe |
| CN201944477U (en) * | 2010-12-27 | 2011-08-24 | 洛阳双瑞特种装备有限公司 | Straight pipe pressure-balancing type expansion joint for gasoline adsorption and desulfurization device |
| CN203297836U (en) * | 2013-06-09 | 2013-11-20 | 秦皇岛北方管业有限公司 | Balanced type expansion joint with compact structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101305472B1 (en) * | 2011-06-13 | 2013-09-06 | (주)삼성플렉스 | pressure balance type expansion joint |
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2013
- 2013-06-09 CN CN201310230042.XA patent/CN103277625B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1218821B (en) * | 1959-01-08 | 1966-06-08 | Demag Ag | Articulated corrugated pipe compensator |
| US5299840A (en) * | 1993-05-20 | 1994-04-05 | Hyspan Precision Products, Inc. | In-line pressure balanced universal expansion joint |
| CN201071999Y (en) * | 2007-09-26 | 2008-06-11 | 洛阳双瑞特钢科技有限公司 | Restriction type expansion joint for absorbing large axial and transverse complex displacement |
| CN201891976U (en) * | 2010-06-18 | 2011-07-06 | 洛阳双瑞特种装备有限公司 | Improved straight-pipe pressure balanced expansion joint |
| CN201944477U (en) * | 2010-12-27 | 2011-08-24 | 洛阳双瑞特种装备有限公司 | Straight pipe pressure-balancing type expansion joint for gasoline adsorption and desulfurization device |
| CN201934844U (en) * | 2011-01-28 | 2011-08-17 | 北京兴达波纹管有限公司 | Pressure balance universal hinge type corrugated compensator for straight pipe |
| CN203297836U (en) * | 2013-06-09 | 2013-11-20 | 秦皇岛北方管业有限公司 | Balanced type expansion joint with compact structure |
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| CN103277625A (en) | 2013-09-04 |
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