CN102865423A - Integral insulating joint for pipelines - Google Patents
Integral insulating joint for pipelines Download PDFInfo
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- CN102865423A CN102865423A CN2012103731546A CN201210373154A CN102865423A CN 102865423 A CN102865423 A CN 102865423A CN 2012103731546 A CN2012103731546 A CN 2012103731546A CN 201210373154 A CN201210373154 A CN 201210373154A CN 102865423 A CN102865423 A CN 102865423A
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- sleeve
- upper connection
- seal ring
- lower contact
- joint
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Abstract
The invention belongs to the field of pipeline components, in particular to an integral insulating joint for pipelines. The integral insulating joint for pipelines comprises an upper guide pipe, a lower guide pipe, an upper joint, a lower joint and a sleeve, and is characterized in that a sleeve welding flange edge is formed in the middle of the upper joint, an upper joint insulating washer cavity is formed at one end, the cavity wall on one side of an upper joint insulating washer cavity is provided with an upper joint seal ring embedding groove, the upper joint insulating washer is arranged in the upper joint insulating washer cavity, and an upper joint seal ring is arranged in the upper joint seal ring embedding groove. One end of the lower joint is provided with a lower joint end face seal ring embedding groove, a lower joint end face seal ring is arranged in the lower joint end face seal ring embedding groove, a step is formed on the outer wall of the lower joint, a lower joint side seal washer is arranged between the step and the upper joint, and an insulating washer is arranged between the step and a stepped face of the sleeve. A gap is reserved at one end, facing the sleeve, of the step. A first insulating filling layer is filled in the gap, and a second insulating filling layer is arranged between the outer wall of the upper end of the lower guide pipe and the inner wall of the sleeve. The integral insulating joint for pipelines has the advantages of high pressure bearing capacity, reduction of sealing parts and safety.
Description
Technical field
The invention belongs to the pipe element technical field, be specifically related to a kind of pipeline Integral-type insulating joint, be applied on gas transmission and distribution pipeline and the petroleum transportation pipeline, tediously long pipeline is implemented the insulation isolation at a certain distance
Background technique
The existing volume of insulating joint of being filled the post of by flange-type structure is large, heavy in view of using in gas transmission and distribution pipeline, gas pressure regulating station, petroleum transportation pipeline and voltage regulating station before, a little less than the bearing capacity and sealing and the poor shortcoming of insulating property, so in Chinese patent literature, occurred many about being applied to the insulating joint of above-mentioned occasion.
" Integral-type insulating joint " that Chinese utility model patent notice of authorization CN201884836U recommends overcome the CN2375848Y(Integral-type insulating joint), the CN2586861Y(Integral-type insulating joint) and the CN2634240Y(insulating joint) etc. shortcoming.But, still there is following shortcoming in this CN201884836U: one, because upper and lower joint among adopts a pair of common seal ring (patent claims first, second, third, fourth seal ring), therefore bearing pressure a little less than, fragile and cause sealing effect to be affected, and the quantity of seal ring is many; Its two because upper and lower conduit all do not have ground engaging component, therefore lose Security.
In view of above-mentioned prior art, be necessary in addition rational modification, for this reason, the applicant has done useful design, has formed technological scheme described below
Summary of the invention
Task of the present invention is to provide a kind of and helps to strengthen the bearing pressure of the seal ring between the upper and lower joint and use and ensure lasting and desirable sealing, be conducive to reduce the quantity of seal ring and use simplified structure and be of value to and make upper and lower conduit make things convenient for ground connection and use the pipeline Integral-type insulating joint that embodies safety.
Task of the present invention is finished like this, a kind of pipeline Integral-type insulating joint, comprise, downcomer, on, lower contact and sleeve, upper conduit is fixedly connected with the upper end of upper connection, and the lower end of upper connection cooperates with the upper end insulation isolation of lower contact, the lower end of lower contact is fixedly connected with the upper end of downcomer, and the outer wall of lower contact cooperates with the inwall of sleeve insulation isolation, and the upper end of sleeve is fixedly connected with upper connection, the lower end of sleeve cooperates with the insulation isolation of the upper end of downcomer, be characterised in that: the middle part in the short transverse of described upper connection consists of the sleeve welded flange limit that has an expansion to establish, the end face of the described upper end of described sleeve is fixedly connected with this sleeve welded flange limit, and upper connection has a upper connection insulating washer chamber towards the end formation of described lower contact, chamber wall in this upper connection insulating washer chamber towards a side of lower contact offers a upper connection seal ring caulking groove, in upper connection insulating washer chamber, be provided with upper connection insulation spacer ring, and in upper connection seal ring caulking groove, be embedded with a upper connection seal ring, this upper connection seal ring cooperates with a side sealing of described upper connection insulation spacer ring, on the end face of an end of upper connection and in the position corresponding to described upper connection seal ring caulking groove, offer joint end-face seal ring caulking groove in lower contact, in this lower contact end-face seal ring caulking groove, be embedded with joint end-face seal ring, the opposite side of this lower contact end-face seal ring and described upper connection insulation spacer ring is sealed and matched, on the outer wall of lower contact and the middle part that is positioned at the short transverse of lower contact consist of and a diameter to be arranged greater than the step of the diameter of lower contact, between this step and upper connection, be provided with joint side seal washer, this lower contact side seal packing ring both was sealed and matched with the described opposite side of upper connection insulation spacer ring, cooperate with the inner wall sealing of described sleeve again, between the sleeve step surface of the sleeve step of step and sleeve, be provided with an insulation spacer ring, this insulation spacer ring matches with the inwall of sleeve, and step maintains the filling gap towards a side of sleeve, in this filling gap, be filled with the first insulation filling layer, between the inwall of the outer wall of the upper end of downcomer and jacket casing, be provided with the second insulation filling layer, outer wall at described upper conduit is fixed with upper conduit ground connection pin, and being fixed with downcomer ground connection pin at the outer wall of described downcomer, described upper connection seal ring and described lower contact end-face seal ring are the O RunddichtringO.
In a specific embodiment of the present invention, described the first insulation filling layer and the second insulation filling layer are epoxy resin.
In another specific embodiment of the present invention, the width on described sleeve welded flange limit is consistent towards the thickness of an end of upper connection with described sleeve.
One of technique effect that compared with the prior art technological scheme provided by the invention has, because upper, upper connection seal ring caulking groove and lower contact end-face seal ring caulking groove have been offered respectively in the position that faces each other of lower contact, in upper connection seal ring caulking groove, be embedded the upper connection seal ring, at the embedded joint end-face seal ring of setting of lower contact end-face seal ring caulking groove, and because upper connection seal ring and lower contact end-face seal ring are the O RunddichtringO, thereby it is large not only to have a bearing pressure, and can reduce the quantity of Sealing and simplified structure with respect to prior art; Owing to being respectively equipped with upper and lower pipe earth pin at upper and lower conduit, thereby can embodying Security.
Description of drawings
Fig. 1 is the embodiments of the invention structural drawing.
Embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, the claimant general elaborates in embodiment's mode below, but all be not restriction to the present invention program to embodiment's description, any according to the present invention's design done only for pro forma but not substantial equivalent transformation all should be considered as technological scheme category of the present invention.
See also Fig. 1, provided the upper conduit 1 that a metal is made, on the outer wall of this upper conduit 1, preferably be fixed with a pair of upper conduit ground connection pin 11 with welding manner.End with ground wire during use is connected with upper conduit ground connection pin 11, and the other end ground connection of ground wire.Upper conduit 1 is welded to connect by upper conduit scolder 12 with the upper end of upper connection 3.Namely there is a upper connection insulating washer chamber 32 lower end in upper connection 3 towards the end formation of lower contact 4, and being arranged with and consisting of towards the chamber wall of a side of lower contact 4 in this upper connection insulating washer chamber 32 has a upper connection seal washer caulking groove 321, being provided with a material in upper connection insulating washer chamber 32 is the upper connection insulation spacer ring 322 of teflon, and in upper connection seal ring caulking groove 321, being embedded with a upper connection seal ring 3211, this upper connection seal ring 3211 cooperates with a side sealing of upper connection insulation spacer ring 322.Make enforcement insulation isolation between the upper and lower joint 3,4 by upper connection insulation spacer ring 322.Outer wall at the middle part of the short transverse of upper connection 3 expands and is provided with a sleeve welded flange limit 31.Upper connection seal ring 3211 is O-ring seals for O type circle, the self-energized seal of adopting O type circle and material are that compared with the prior art the upper connection of teflon insulate this seal form that spacer ring 322 matches, no matter be that bearing pressure or sealing effect are all very remarkable, can be applicable to the above super high pressure bend pipeline conveying system of 10MPa, the lower contact end-face seal ring 411 that the below will mention is with example.
Upper end in aforesaid lower contact 4 namely offers joint end-face seal ring caulking groove 41 on an end end face of upper connection 3 and in the position corresponding to aforesaid upper connection seal ring caulking groove 321, being embedded with in this lower contact end-face seal ring caulking groove 41, joint end-face seal ring 411(O type circle is the O RunddichtringO), this lower contact end-face seal ring 411 is sealed and matched with the opposite side of aforementioned upper connection insulation spacer ring 322.At the middle part of the short transverse of lower contact 4 and be positioned at outer wall and consist of and a diameter is arranged greater than the step 42 of the external diameter of lower contact 4, on this step 42 and towards a side of upper connection 3, be provided with joint side seal ring 421, and step 42 towards under a side be provided with an insulation spacer ring 422.Aforesaid lower contact side seal circle 421 both was sealed and matched with described upper connection insulation dottle pin circle 322, and the inner wall sealing with sleeve 5 cooperates again, and aforesaid insulation spacer ring 422 matches with the sleeve step surface 511 of the sleeve step 51 of sleeve 5.Make by lower contact side seal circle 421 and insulation spacer ring 422 that insulated enclosure separates between sleeve 5 and the lower contact 4.Be filled with the first insulation filling layer 4231 of being filled the post of by epoxy resin in the filling gap 423 that between the inwall of lower contact 4 and sleeve 5, forms again.Shown in figure, be welded to connect by sleeve solder 52 between the upper end end face of sleeve 5 and the aforesaid sleeve welded flange limit 31, and the width on sleeve welded flange limit 31 is consistent with the wall thickness of sleeve 5.
Material is that the lower end of the downcomer 25 of metal namely is welded to connect with downcomer scolder 23 and lower contact 4 towards an end end face of lower contact 4, the position that borders between downcomer 2 and the sleeve 5 is filled by the second insulation filling layer 21, and the second insulation filling layer 21 is epoxy resin.Solid welding has the downcomer ground connection pin 22 of describing as to upper conduit ground connection pin 11 on the outer wall of downcomer 2.
As shown in the above description, be that insulation is separated between the upper and lower conduit 1,2, particularly downcomer 2 by the lower contact 4 that is fixedly connected with it realize with upper connection 3 and sleeve 5 between the insulation separation.The upper connection 3 by being fixedly connected with it of same reason, upper conduit 1 realize with lower contact 4 and sleeve 5 between the insulation separation.
The present invention implements insulation isolation to pipeline by certain distance in use as long as upper and lower conduit 1,2 is connected in series on gas supply pipe road, the petroleum conveying pipeline.
In a word, technological scheme provided by the invention has overcome the shortcoming in the prior art, has finished the invention task, has embodied the described technique effect of claimant, and can yet be regarded as is a ultimate attainment technological scheme
Claims (3)
1.
A kind of pipeline Integral-type insulating joint, comprise, downcomer (1,2), on, lower contact (3,4) and sleeve (5), upper conduit (1) is fixedly connected with the upper end of upper connection (3), and the lower end of upper connection (3) cooperates with the upper end insulation isolation of lower contact (4), the lower end of lower contact (4) is fixedly connected with the upper end of downcomer (2), and the outer wall of lower contact (4) cooperates with the inwall insulation isolation of sleeve (5), and the upper end of sleeve (5) is fixedly connected with upper connection (3), the lower end of sleeve (5) cooperates with the upper end insulation isolation of downcomer (2), it is characterized in that: the middle part in the short transverse of described upper connection (3) consists of the sleeve welded flange limit (31) that has an expansion to establish, the end face of the described upper end of described sleeve (5) is fixedly connected with this sleeve welded flange limit (31), and upper connection (3) has a upper connection insulating washer chamber (32) towards the end formation of described lower contact (4), chamber wall in this upper connection insulating washer chamber (32) towards a side of lower contact (4) offers a upper connection seal ring caulking groove (321), in upper connection insulating washer chamber (32), be provided with upper connection insulation spacer ring (322), and in upper connection seal ring caulking groove (321), be embedded with a upper connection seal ring (3211), this upper connection seal ring (3211) cooperates with a side sealing of described upper connection insulation spacer ring (322), on the end face of an end of upper connection (3) and in the position corresponding to described upper connection seal ring caulking groove (321), offer joint end-face seal ring caulking groove (41) in lower contact (4), in this lower contact end-face seal ring caulking groove (41), be embedded with joint end-face seal ring (411), this lower contact end-face seal ring (411) is sealed and matched with the opposite side of described upper connection insulation spacer ring (322), on the outer wall of lower contact (4) and the middle part that is positioned at the short transverse of lower contact (4) consist of and a diameter to be arranged greater than the step (42) of the diameter of lower contact (4), between this step (42) and upper connection (3), be provided with joint side seal washer (421), this lower contact side seal packing ring (421) both was sealed and matched with the described opposite side of upper connection insulation spacer ring (322), inner wall sealing with described sleeve (5) cooperates again, between the sleeve step surface (511) of the sleeve step (51) of step (42) and sleeve (5), be provided with an insulation spacer ring (422), this insulation spacer ring (422) matches with the inwall of sleeve (5), and step (42) maintains filling gap (423) towards a side of sleeve (5), in this filling gap (423), be filled with the first insulation filling layer (4231), between the inwall of the outer wall of the upper end of downcomer (2) and jacket casing (5), be provided with the second insulation filling layer (21), outer wall at described upper conduit (1) is fixed with upper conduit ground connection pin (11), and being fixed with downcomer ground connection pin (22) at the outer wall of described downcomer (2), described upper connection seal ring (3211) and described lower contact end-face seal ring (411) are the O RunddichtringO.
2.
Pipeline Integral-type insulating joint according to claim 1 is characterized in that described the first insulation filling layer (4231) and the second insulation filling layer (21) are epoxy resin.
3.
Pipeline Integral-type insulating joint according to claim 1, the width that it is characterized in that described sleeve welded flange limit (31) are consistent towards the thickness of an end of upper connection (3) with described sleeve (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103731546A CN102865423A (en) | 2012-09-29 | 2012-09-29 | Integral insulating joint for pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103731546A CN102865423A (en) | 2012-09-29 | 2012-09-29 | Integral insulating joint for pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102865423A true CN102865423A (en) | 2013-01-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103731546A Pending CN102865423A (en) | 2012-09-29 | 2012-09-29 | Integral insulating joint for pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102865423A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084289A (en) * | 2017-06-28 | 2017-08-22 | 常熟市上海飞奥压力容器制造有限公司 | Pipeline insulating joint |
| CN107620841A (en) * | 2017-09-22 | 2018-01-23 | 上海常浩高压管件有限公司 | A kind of closing in type integral insulation joint |
| CN109723922A (en) * | 2017-10-27 | 2019-05-07 | 北京精密机电控制设备研究所 | A kind of fluid connecting device of both ends insulation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559147Y (en) * | 2002-03-21 | 2003-07-02 | 北京永逸舒克防腐蚀技术有限公司 | Monolithic insulation joint |
| CN2586861Y (en) * | 2002-12-03 | 2003-11-19 | 上海飞奥燃气设备有限公司 | Integral insulating connector |
| CN2937706Y (en) * | 2006-07-12 | 2007-08-22 | 苏州市燃气设备阀门制造有限公司 | Insulation metal valve |
| WO2011007100A2 (en) * | 2009-07-16 | 2011-01-20 | Airbus Operations (S.A.S) | Device for protecting piping from lightning |
| CN101994886A (en) * | 2010-10-29 | 2011-03-30 | 常熟市上海飞奥压力容器制造有限公司 | Integral insulating joint |
| CN202868150U (en) * | 2012-09-29 | 2013-04-10 | 常熟市上海飞奥压力容器制造有限公司 | Integral type insulated joint for pipeline |
-
2012
- 2012-09-29 CN CN2012103731546A patent/CN102865423A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559147Y (en) * | 2002-03-21 | 2003-07-02 | 北京永逸舒克防腐蚀技术有限公司 | Monolithic insulation joint |
| CN2586861Y (en) * | 2002-12-03 | 2003-11-19 | 上海飞奥燃气设备有限公司 | Integral insulating connector |
| CN2937706Y (en) * | 2006-07-12 | 2007-08-22 | 苏州市燃气设备阀门制造有限公司 | Insulation metal valve |
| WO2011007100A2 (en) * | 2009-07-16 | 2011-01-20 | Airbus Operations (S.A.S) | Device for protecting piping from lightning |
| WO2011007100A3 (en) * | 2009-07-16 | 2012-04-05 | Airbus Operations (S.A.S) | Device for protecting piping from lightning |
| CN101994886A (en) * | 2010-10-29 | 2011-03-30 | 常熟市上海飞奥压力容器制造有限公司 | Integral insulating joint |
| CN202868150U (en) * | 2012-09-29 | 2013-04-10 | 常熟市上海飞奥压力容器制造有限公司 | Integral type insulated joint for pipeline |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084289A (en) * | 2017-06-28 | 2017-08-22 | 常熟市上海飞奥压力容器制造有限公司 | Pipeline insulating joint |
| CN107620841A (en) * | 2017-09-22 | 2018-01-23 | 上海常浩高压管件有限公司 | A kind of closing in type integral insulation joint |
| CN109723922A (en) * | 2017-10-27 | 2019-05-07 | 北京精密机电控制设备研究所 | A kind of fluid connecting device of both ends insulation |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |