CN103277625A - Balance-type expansion joint for small-sized space - Google Patents
Balance-type expansion joint for small-sized space Download PDFInfo
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- CN103277625A CN103277625A CN201310230042XA CN201310230042A CN103277625A CN 103277625 A CN103277625 A CN 103277625A CN 201310230042X A CN201310230042X A CN 201310230042XA CN 201310230042 A CN201310230042 A CN 201310230042A CN 103277625 A CN103277625 A CN 103277625A
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Abstract
A balance-type expansion joint for small-sized space comprises a balance bellows, a first working bellows and a second working bellows. A first end plate is welded on the outside end pipe of the first working bellows, and a first ring plate is welded on the inside end pipe of the first working bellows; a second end plate is welded on the outside end pipe of the second working bellows, and a second ring plate is welded on the inside end pipe of the second working bellows; the first end plate is welded with a first auxiliary hinge plate, the first auxiliary hinge plate is hinged with a first main hinge plate, and the end portion of the first hinge plate is welded with the second ring plate; the second end plate is welded with a second auxiliary hinge plate, the second auxiliary hinge plate is hinged with a second main hinge plate, and the end portion of the second main hinge plate is welded with the first ring plate; and the left end pipe of the balance bellows is welded with the first ring plate, and the right end pipe of the balance bellows is welded with the second ring plate. The balance-type expansion joint for the small-sized space is used for compensating axial and transverse displacement and balancing pressure of a L-shaped pipe; and compared with the prior art, can reduce structural space greatly and has the advantages of being small in appearance size, multi-functional, flexible in installation, capable of meeting the requirement of small-sized pipeline space and the like.
Description
Technical field
The present invention relates to a kind of expansion joint, particularly a kind of balanced expansion joint for the small size space belongs to the pipe fitting technical field.
Background technique
Expansion joint is to utilize the dilatation of bellows to come the extraction duct system by expanding with heat and contract with cold etc. former thereby produce the compensating element of dimensional changes, can extraction duct displacement and vibration, and balanced action power reduces noise.In industrial technology pipeline piping technology, process pipe is intricate, because pipe temperature, pressure change thermal stress and the physical descriptor that causes, needs to adopt expansion joint to be compensated usually.Expansion joint is respectively applied to compensate straight pipeline, Z type pipeline and L pipeline based on compensating axial, horizontal and three kinds of citation forms of angular displacement in actual applications.Then be sharp to make the thrust that pressures causes in the pipeline keep balance by self structure as the pressure-balancing type expansion joint, do not act on or seldom act on continuous equipment, and the bit shift compensation function of energy maintenance itself.The pressure-balancing type expansion joint is divided into: the straight tube balance type, and it is used for the axial displacement (comprising straight pipe pressure-equalizing type, single entry bypass type and compound bypass type) of compensation and balance straight pipeline; Universal type (being commonly called as laterally big pull bar) is used for compensation and balance Z type and the ducted transverse stress of L type; Hinge type and universal type (dividing single entry and compound again) are used for compensation and balance Z type and the ducted lateral pressure of L type.Above-mentioned standard type straight tube balanced expansion joint, all because of its structural feature, required installing space is bigger, is subjected to the limitation of application conditions, can not satisfy the specific (special) requirements of craft piping technology.Normally to use the hinge type expansion joint in pairs as L type pipeline as if compensating axial and lateral displacement, two hinge type expansion joints need be installed in horizontal pipeline and the vertical duct place of L type pipeline respectively, like this, need take bigger structure space, if pipeline is in the small size space, then can't satisfy installation requirement.
Summary of the invention
The objective of the invention is to overcome the drawback of prior art, a kind of balanced expansion joint for the small size space is provided, described expansion joint can be used for compensating L type pipeline axial and lateral displacement and balanced action power.
Problem of the present invention realizes with following technical proposals:
A kind of balanced expansion joint for the small size space, its specialization is, it comprises the 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; The second work bellows outboard end pipe seam, second end plate, the second work bellows medial extremity pipe seam, second ring flat-plate; The first end plate seam, the first secondary hinge plate, the hinged first main hinge plate of the first secondary hinge plate, the first main hinge plate end seam, second ring flat-plate; The second end plate seam, the second secondary hinge plate, 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.
Above-mentioned balanced expansion joint for the small size space, the described first main hinge plate, the second main hinge plate are positioned at same plane, the first main hinge plate is fork-shaped, the first main hinge plate is provided with U-groove bevel near balance bellows side, the second main hinge plate is rectangle, and the second main hinge plate is positioned at U-groove bevel near balance bellows side.
Above-mentioned balanced expansion joint for the small size space, the monolateral lateral clearance of the bi-side of the described second main hinge plate and U-groove bevel is the 15-20 millimeter, the axial clearance 20-30 millimeter of the second main hinge plate end face and U-groove bevel bottom.
Above-mentioned balanced expansion joint for the small size space is the plane of the parallel second main hinge plate with the welding part of the second main hinge plate on described first ring flat-plate, is the plane of the parallel first main hinge plate with the welding part of the first main hinge plate on second ring flat-plate.
The present invention is directed to common balanced expansion joint effect single, be used and take the big problem of structure space and improve, 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 is connected bearing pin, above-mentioned member has constituted a kind of compensating axial displacement, balanced action power function of existing straight pipe pressure-equalizing type expansion joint by ingenious combination; The equilibrium swelling joint that two single entry planar hinge chain expansion joint offset angle displacement functions are arranged again.Described expansion joint can be used for L type pipeline, compensating axial and lateral displacement and balance pressure, it can be according to the structure space of L type pipeline, selection is installed in horizontal pipeline or the vertical duct of L type pipeline, reduce structure space greatly, it is little to have boundary dimension, and function is complete, flexible for installation, can satisfy characteristics such as pipeline space small size requirement.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the ring flat-plate schematic representation.
Each list of reference numerals is among the figure: 1, the first work bellows outboard end pipe, 2, first end plate, 3, the first secondary hinge plate, 4, the first work bellows, 5, the first main hinge plate, 5-1, U-groove bevel, 6, the first work bellows medial extremity pipe, 7, first ring flat-plate, 8, balance bellows left end pipe, 9, the balance bellows, 10, balance bellows right-hand member pipe, 11, second ring flat-plate, 12, the second work bellows medial extremity pipe, 13, the second work bellows, 14, the second main hinge plate, 15, the second secondary hinge plate, 16, the 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.The first work bellows outboard end pipe 1 place seam, first end plate 2, the first work bellows medial extremity pipe, 6 seam, first ring flat-plate 7; The second work bellows outboard end pipe 16 places seam, second end plate 17, the second work bellows medial extremity pipe 12 places seam, second ring flat-plate 11.First end plate, 2 seam, first secondary hinge plate 3, the first secondary hinge plates stride across balance bellows 9 by the hinged first main hinge plate of bearing pin 5, the first main hinge plates, its right part and 11 seam of second ring flat-plate; The hinged second main hinge plate of second end plate 17 seam, second secondary hinge plate 15, the second secondary hinge plates 14, the second main hinge plates stride 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 first ring flat-plate 7, the middle part seam of balance bellows right-hand member pipe 10 and second ring flat-plate 11.
Still referring to Fig. 1, Fig. 2, the first main hinge plate 5, the second main hinge plate 14 are 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; The 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 guaranteeing that described expansion joint does not produce interference between two main hinge plates when the 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, and the axial clearance of 20-30 millimeter is left in the second main hinge plate left end and U-groove bevel bottom.
Firm for guaranteeing welding, be the plane of the parallel second main hinge plate with the welding part of the second main hinge plate 14 on first ring flat-plate 7, be the plane of the parallel first main hinge plate with the welding part of the first main hinge plate 5 on second ring flat-plate 11.First ring flat-plate, second ring-plane structure are identical, and Fig. 3 is the schematic representation of first ring flat-plate.
The present invention can be used for L type pipeline, compensating axial and lateral displacement and balanced action power, it can be according to the structure space of L type pipeline, selects to be installed in horizontal pipeline and the vertical duct of L type pipeline, generally selects to be installed in horizontal pipeline or vertical duct in the two on the longer pipe road.The balance bellows is namely brought into play balanced action in overall structure, play the effect of omnipotent equilibrium swelling joint intervalve again.During described expansion joint absorption tube linear displacement, suppose that left end fixes, expansion joint is compressed, the first work bellows 4 of balance bellows 9 left ends is compressed, make the balance bellows be stretched by the first main hinge plate 5, the compensating axial displacement, at this moment described expansion joint is the same with the effect of normal straight tube pressure-balancing type expansion joint.In first, second main hinge board plane, described expansion joint quite is a compound flat transverse hinge type expansion joint, middle balance bellows is equivalent to the intervalve of compound 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 that absorbs the pipeline lateral displacement.
Claims (4)
1. balanced expansion joint that is used for the 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), first work bellows outboard end pipe (1) 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) seam second end plate (17), second work bellows medial extremity pipe (12) seam second ring flat-plate (11); First end plate (2) seam, the first secondary hinge plate (3), the hinged first main hinge plate (5) of the first secondary hinge plate, first main hinge plate end seam second ring flat-plate (11); Second end plate (17) seam, the second secondary hinge plate (15), the hinged second main hinge plate (14) of the second secondary hinge plate, 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).
2. the balanced expansion joint for the small size space according to claim 1, it is characterized in that, the described first main hinge plate (5), the second main hinge plate (14) are positioned at same plane, the first main hinge plate (5) is fork-shaped, the first main hinge plate is provided with U-groove bevel (5-1) near balance bellows side, the second main hinge plate (14) is rectangle, and the second main hinge plate is positioned at U-groove bevel near balance bellows side.
3. the balanced expansion joint for the small size space according to claim 2, it is characterized in that, the monolateral lateral clearance of the bi-side of the described second main hinge plate (14) and U-groove bevel (5-1) is the 15-20 millimeter, the axial clearance 20-30 millimeter of the second main hinge plate end face and U-groove bevel bottom.
4. the balanced expansion joint for the small size space according to claim 3, it is characterized in that, the last welding part with the second main hinge plate (14) of described first ring flat-plate (7) is the plane of the parallel second main hinge plate, and the last welding part with the first main hinge plate (5) of second ring flat-plate (11) is the plane of the parallel first main hinge plate.
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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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| CN103277625B CN103277625B (en) | 2016-03-23 |
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Cited By (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 |
| CN106195508A (en) * | 2016-08-26 | 2016-12-07 | 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 |
| CN106247066A (en) * | 2016-08-26 | 2016-12-21 | 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 |
| CN110671569A (en) * | 2019-09-29 | 2020-01-10 | 龚会萍 | Pressure compensator |
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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 |
| KR20120137762A (en) * | 2011-06-13 | 2012-12-24 | (주)삼성플렉스 | Pressure balance type expansion joint |
| 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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2013
- 2013-06-09 CN CN201310230042.XA patent/CN103277625B/en active Active
Patent Citations (8)
| 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 |
| KR20120137762A (en) * | 2011-06-13 | 2012-12-24 | (주)삼성플렉스 | Pressure balance type expansion joint |
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Cited By (7)
| 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 |
| CN106195508A (en) * | 2016-08-26 | 2016-12-07 | 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 |
| CN106247066A (en) * | 2016-08-26 | 2016-12-21 | 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 |
| 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 |
| 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 |
| CN110671569A (en) * | 2019-09-29 | 2020-01-10 | 龚会萍 | Pressure compensator |
| CN110671569B (en) * | 2019-09-29 | 2021-05-14 | 江苏福盛机械管件有限公司 | Pressure compensator |
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| CN103277625B (en) | 2016-03-23 |
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