CN2929420Y - Rotary non-thrust pipeline expansion device - Google Patents
Rotary non-thrust pipeline expansion device Download PDFInfo
- Publication number
- CN2929420Y CN2929420Y CN 200620072651 CN200620072651U CN2929420Y CN 2929420 Y CN2929420 Y CN 2929420Y CN 200620072651 CN200620072651 CN 200620072651 CN 200620072651 U CN200620072651 U CN 200620072651U CN 2929420 Y CN2929420 Y CN 2929420Y
- Authority
- CN
- China
- Prior art keywords
- rotating core
- core tube
- core pipe
- filler
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 16
- 239000010439 graphite Substances 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 239000004067 bulking agent Substances 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Joints Allowing Movement (AREA)
Abstract
A rotary non-thrust pipeline expansion unit for compensating the displacement of heating power pipeline network is composed of casing, rotary core tube and sealing filler, and features that a chromium-plated polished layer is arranged on the external surface of core tube, rolling steel balls are arranged between core tube and casing, and between core tube and pressing flange, the sealing filler is a group of graphite filler rings with V-shaped cross section, and a graphite cement filler is arranged between adjacent filler rings. The utility model discloses connect in groups in carrying high temperature fluid medium's pipeline, to the expend with heat and contract with cold displacement change slip compensation of pipeline for rotation compensation, have that the compensation ability is big, sealing performance is good, long service life, need not to maintain, can guarantee the obvious advantage of the long-term high-efficient operation of heating power pipe network.
Description
Technical field
The utility model relates to a kind of expansion bend that is used for the heat distribution pipe network compensate for displacement, and especially mainly by shell, the rotary type of the compound seal that core pipe and stuffing box packing constitute does not have the thrust pipeline extension device.
Background technique
When industry heat distribution pipe network delivering vapors such as municipal heating systems, electric power, metallurgy, petrochemical industry, hot water or high-temperature water medium, form and expand with heat and contract with cold, generally adopt telescopic joint compensate for displacement because pipeline is influenced by medium temperature.The sleeve slip joint mainly is made of shell, slide cores pipe and stuffing box packing, because the telescopic joint stretches compensate for displacement by the slide cores pipe, compensation ability is subjected to the restriction of structure, and the compensation ability of single slip joint is only in 300mm.And its sealing adopts the graphite packing as stuffing box packing usually, improve sealability by increasing pretightening force, but gets off a heating phase, the compensation of slide cores pipe resets, again the stuffing box packing plucking is become flexible and the generation leakage, therefore must add filler again and safeguard, its work is not only tired but also dangerous.At present, the someone proposes to replace the telescopic joint with rotary slip joint, and its compensation ability improves a lot, but because sealing configuration and filler do not make improvements, still exists sealing effect poor, and the life-span is short, the problem that operating cost is high.
The model utility content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art part, provides that a kind of compensation ability is big, good seal performance, long service life, Maintenance free, can guarantee that the rotary type of the long-term efficient operation of heat distribution pipe network does not have the thrust pipeline extension device.
The technical solution of the utility model is: rotary type does not have the thrust pipeline extension device, comprise rotating core pipe, shell, stuffing box packing and supported flange, between shell and the rotating core pipe and between supported flange and the rotating core pipe rolling steel balls is arranged all, improvements are that the outer surface of described rotating core pipe has the chromium plating polishing layer, described stuffing box packing be one group of axial arranging and be adjacent to, the graphite packing circle of cross section forming V-shape, the graphite cement bulking agent is arranged between the adjacent insertion ring, be provided with secondary seal filler and adjustable retainer ring between described supported flange port and the rotating core pipe.
Further scheme is: described graphite packing circle is 10～16; The side that described graphite packing circle communicates with the rotating core tube cavity is provided with automatic compression plate, and the inside and outside circle of compression plate becomes Spielpassung with core tube outer surface, inner surface of outer cover; Described secondary seal filler is a polytetrafluoroethylmaterial material; Described adjustable retainer ring is threaded with supported flange.
Adopt above technological scheme, the graphite packing circle is by the compression molding of graphite sheet material, the cross section is a V-type, multi-disc is arranged and is adjacent to, and between adjacent two and accompany the graphite cement bulking agent, has so just strengthened lateral expansion performance and the greasy property of insertion ring under the axial pre tightening force effect, good sealing effect, automatically the automatic pressuring action of compression plate in addition, insertion ring uses for a long time, Maintenance free.Be located at secondary seal filler between flange and the core pipe and further improved the sealing reliability of expansion bend, and adjustable retainer ring can online pretension and adjusting, dispense with parking is safeguarded.Because the outer surface that the rotating core pipe contacts with insertion ring has the chromium plating polishing layer, roughness reaches usually
Not only firmly but also smooth, can not damage insertion ring when making expansion bend work, prolong working life greatly.Two places are provided with rolling element between core pipe and shell, the flange, and rolling element is made up of steel ball, guarantee that the core pipe is when rotational, lateral deviation does not take place, and more flexible when making the expansion bend compensation, rotation angle can reach 90 °, compensation ability is big, and has guaranteed the uniformity and the degree of compaction of stuffing box packing.This expansion bend rotating core tube and tube road internal diameter equates that media flow is unobstructed, no thrust.It is to rotate that the utility model slides the compensation way change of expansion bend; working life and compensation ability are respectively 4～6 times and 2～4 times of existing telescopic joint; can guarantee the long-term efficient operation of heat distribution pipe network; the expansion bend quantity that pipe laying is used significantly reduces; reduce investment outlay; increase economic efficiency, help environmental protection.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model application state schematic representation in pipeline.
Embodiment
With reference to accompanying drawing, between rotating core pipe 1 and the shell 9 steel ball 8 is arranged, and steel ball 4 is arranged between the supported flange 5, stuffing box packing between core pipe and shell is the graphite packing circle 6 of one group of cross section forming V-shape, this insertion ring has 12, between adjacent two the graphite cement bulking agent is arranged, the and arranged on left and right sides of insertion ring 6 is compressed by supported flange 5 and automatic compression plate 7 respectively, and the inside and outside circle of compression plate 7 becomes Spielpassung with core tube outer surface, inner surface of outer cover.The rotating core tube outer surface has the chromium plating polishing layer.Between supported flange port and the rotating core pipe teflon seal filler 3 is arranged, there is the adjustable retainer ring 2 that is threaded with flange in its outside.There is flange 10 port of core pipe and shell.
The application of present embodiment is exemplified as three isometrical rotary types does not have thrust pipeline extension device A, B, C are connected in the heat-net-pipeline 12 that is supported on the fixed support 11 in groups, wherein be connected by crank pipeline 13 between A and B, A and C, according to the permissible length of crank pipeline, the maximum displacement compensation rate Δ L of pipeline 12 reaches 1000mm.
Claims (5)
1, a kind of rotary type does not have the thrust pipeline extension device, comprise rotating core pipe, shell, stuffing box packing and supported flange, between shell and the rotating core pipe and between supported flange and the rotating core pipe rolling steel balls is arranged all, the outer surface that it is characterized in that described rotating core pipe has the chromium plating polishing layer, described stuffing box packing be one group of axial arranging and be adjacent to, the graphite packing circle of cross section forming V-shape, the graphite cement bulking agent is arranged between the adjacent insertion ring, be provided with secondary seal filler and adjustable retainer ring between described supported flange port and the rotating core pipe.
2, do not have the thrust pipeline extension device by the described rotary type of claim 1, it is characterized in that described graphite packing circle is 10～16.
3, do not have the thrust pipeline extension device by the described rotary type of claim 1, it is characterized in that the side that described graphite packing circle communicates with the rotating core tube cavity is provided with automatic compression plate, the inside and outside circle of compression plate becomes Spielpassung with core tube outer surface, inner surface of outer cover.
4, do not have the thrust pipeline extension device by the described rotary type of claim 1, it is characterized in that described secondary seal filler is a polytetrafluoroethylmaterial material.
5, do not have the thrust pipeline extension device by the described rotary type of claim 1, it is characterized in that described adjustable retainer ring is threaded with supported flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072651 CN2929420Y (en) | 2006-04-24 | 2006-04-24 | Rotary non-thrust pipeline expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072651 CN2929420Y (en) | 2006-04-24 | 2006-04-24 | Rotary non-thrust pipeline expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929420Y true CN2929420Y (en) | 2007-08-01 |
Family
ID=38307802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620072651 Expired - Fee Related CN2929420Y (en) | 2006-04-24 | 2006-04-24 | Rotary non-thrust pipeline expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929420Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608723B (en) * | 2008-06-21 | 2012-08-29 | 洛阳双瑞特种装备有限公司 | Non-maintaining sleeve compensator with double sealing structures |
| CN101571221B (en) * | 2009-06-16 | 2013-05-08 | 大连益多管道有限公司 | Composite closed type sleeve compensator for steam |
| CN103939701A (en) * | 2014-04-29 | 2014-07-23 | 江苏宏博机械制造有限公司 | Thrust-free gyro-turn compensator |
| CN104534211A (en) * | 2014-12-31 | 2015-04-22 | 刘旸 | Pipeline connecting device |
| CN107664240A (en) * | 2016-07-29 | 2018-02-06 | 江苏金通机械有限公司 | The self-contained whirl compensator of new three sealing |
| CN108644524A (en) * | 2018-05-24 | 2018-10-12 | 中国科学院力学研究所 | A kind of expansion joint compensation device of high temperature high voltage resistant air |
| CN108662340A (en) * | 2018-05-24 | 2018-10-16 | 中国科学院力学研究所 | A kind of sealed expansion joint for pure air wind-tunnel |
| CN111623180A (en) * | 2020-06-23 | 2020-09-04 | 江苏贝特管件有限公司 | End face sealing structure of rotary compensator and rotary compensator |
| CN111637308A (en) * | 2020-07-06 | 2020-09-08 | 刘江炜 | Corrugated expansion joint |
| CN113669531A (en) * | 2021-08-26 | 2021-11-19 | 江苏亚星波纹管有限公司 | Maintenance-free omnibearing rotary compensator |
-
2006
- 2006-04-24 CN CN 200620072651 patent/CN2929420Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608723B (en) * | 2008-06-21 | 2012-08-29 | 洛阳双瑞特种装备有限公司 | Non-maintaining sleeve compensator with double sealing structures |
| CN101571221B (en) * | 2009-06-16 | 2013-05-08 | 大连益多管道有限公司 | Composite closed type sleeve compensator for steam |
| CN103939701A (en) * | 2014-04-29 | 2014-07-23 | 江苏宏博机械制造有限公司 | Thrust-free gyro-turn compensator |
| CN104534211A (en) * | 2014-12-31 | 2015-04-22 | 刘旸 | Pipeline connecting device |
| CN107664240A (en) * | 2016-07-29 | 2018-02-06 | 江苏金通机械有限公司 | The self-contained whirl compensator of new three sealing |
| CN108644524A (en) * | 2018-05-24 | 2018-10-12 | 中国科学院力学研究所 | A kind of expansion joint compensation device of high temperature high voltage resistant air |
| CN108662340A (en) * | 2018-05-24 | 2018-10-16 | 中国科学院力学研究所 | A kind of sealed expansion joint for pure air wind-tunnel |
| CN111623180A (en) * | 2020-06-23 | 2020-09-04 | 江苏贝特管件有限公司 | End face sealing structure of rotary compensator and rotary compensator |
| CN111637308A (en) * | 2020-07-06 | 2020-09-08 | 刘江炜 | Corrugated expansion joint |
| CN113669531A (en) * | 2021-08-26 | 2021-11-19 | 江苏亚星波纹管有限公司 | Maintenance-free omnibearing rotary compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 Termination date: 20110424 |