CN201443664U - Maintenance-free flexible graphite seal sleeve barrel compensator - Google Patents
Maintenance-free flexible graphite seal sleeve barrel compensator Download PDFInfo
- Publication number
- CN201443664U CN201443664U CN2009200164773U CN200920016477U CN201443664U CN 201443664 U CN201443664 U CN 201443664U CN 2009200164773 U CN2009200164773 U CN 2009200164773U CN 200920016477 U CN200920016477 U CN 200920016477U CN 201443664 U CN201443664 U CN 201443664U
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- CN
- China
- Prior art keywords
- rings
- ring
- outer sleeve
- seal sleeve
- expanded graphite
- 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
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Abstract
The utility model relates to a pressure pipeline element, in particular to a direct-buried, pipe trench or overhead thermal-pipeline thermal compensating device. An outer sleeve barrel is sleeved outside a work pipe, seal filler is filled between the work pipe and the outer sleeve barrel, two sides of the seal filler are respectively provided with graphite Buchans, the outer side of the graphite Buchan on one side of the seal filler is provided with three rings, a compression spring is mounted outside the three rings, and the other end of the compression spring is connected with a ring or two rings in a pressing way. The maintenance-free flexible graphite seal sleeve barrel compensator is provided with the three rings and the compression spring, perfects the structure, can regulate seal gaps under the elastic force of the compression spring after volatilization components in the seal filler lose and seal gaps appear when working under thermal environment for long term, improves sealing performance, greatly improves the work reliability and the use span of products, achieves maintenance-free functions, and simultaneously improves the positioning and the guiding performance between the work pipe and the outer sleeve barrel.
Description
One, technical field:
The utility model relates to pressure piping element, particularly direct-burried, pipe trench or built on stilts heat distribution pipeline heat compensating unit.
Two, background technique:
The non-maintaining Expanded graphite seal sleeve compensator structure of tradition is made up of working pipe, outer sleeve, guiding bearing shell, tail pipe, seal ring and stuffing box packing, is applicable to the hot water pipeline heat compensating unit.During work, rely on the slide relative between working pipe, the outer sleeve to come the extending amount that expands with heat and contract with cold and produce of extraction duct.Realize sealing by the Seal cage of forming by seal ring and stuffing box packing between working pipe, outer sleeve.This structure is not provided with material feeding port, is non-maintaining structure.Operation facts have proved that this product is operated under the short term thermal environment comparatively reliable, but it is under the long term thermal environment, after the volatile component loss in the stuffing box packing, the Seal cage poor sealing can occur, cause dielectric leakage, so this structure to adapt to long term thermal environment needs and improves raising.
Three, model utility content:
The purpose of this utility model is to overcome above-mentioned not enough problem, provides a kind of hot water with non-maintaining Expanded graphite seal sleeve compensator, and is simple in structure, long service life, and cost is low, is widely used in hot water pipeline.
The technological scheme that the utility model is adopted for achieving the above object is: non-maintaining Expanded graphite seal sleeve compensator, working pipe is set with outer sleeve outward, between working pipe and the outer sleeve stuffing box packing is housed, the stuffing box packing both sides are installed the graphite packing respectively, three rings are installed in the graphite packing outside of stuffing box packing one side, the outer stage clip of installing of three rings, the stage clip the other end compress with a ring or two rings and are connected.
Three rings are all installed in the graphite packing outside of described stuffing box packing both sides, two the three outer stage clips of all installing of ring, and one of them stage clip the other end compresses with a ring and is connected, and another stage clip the other end compresses with two rings and is connected.
Described outer sleeve fixed end and tail pipe are welded to connect.
A described ring, two rings and the equal stiffening ring of three rings.A described ring, two rings, three are adorned anti-corrosion bearing shell in encircling all.
Described outer sleeve inner wall has seam, and two rings are contained in the seam inboard.
A described ring outer wall has seam, and seam and outer sleeve are welded to connect.
Described stuffing box packing is conventional stuffing box packing.
Described working pipe tail end has anti-decylization.
Described working pipe outer wall is coated with hard chromium layers.
The utility model than conventional construction many three the ring and stage clips, the perfect structure of non-maintaining sleeve compensator, when under the long term thermal environment, working, the loss of volatile ingredient in the stuffing box packing, seal clearance appears and after, because the existence of stage clip can promote three rings and carry out the seal clearance adjustment under the effect of stage clip elastic force, make sealability improve, improve the functional reliability and the working life of product greatly, realized non-maintaining function; The design of three rings has improved location and steering capability between working pipe and outer sleeve simultaneously; The existence of anti-corrosion bearing shell and chromium coating has improved that compensator is antiacid, the corrosion ability of medium such as alkali and seawater; The design of anticreep ring structure has improved the ability that product meets accidental contingencies, and can guarantee the network security operation; The stuffing box packing of function admirable and advanced injection technique guarantee that product seals reliably.
Four, description of drawings:
Fig. 1 is the conventional construction schematic representation.
Fig. 2 is the utility model structural representation (a left end dress stage clip).
Fig. 3 is the utility model structural representation (a right-hand member dress stage clip).
Fig. 4 is the utility model structural representation (a two ends dress stage clip).
Five, embodiment:
Non-maintaining Expanded graphite seal sleeve compensator as shown in Figure 2, the working pipe 1 outer outer sleeve 8 that is set with, outer sleeve fixed end and tail pipe 9 are welded to connect, outer sleeve 8 inwalls have seam, two rings 7 are contained in the seam inboard, one ring outer wall has seam, seam and outer sleeve are welded to connect, the design of working pipe 1 tail end has anticreep ring structure, working pipe 1 outer wall compensation work face to carry out hard chromium plating processing formation chromium layer, and conventional stuffing box packing 6 is housed between working pipe 1 and the outer sleeve 8, stuffing box packing 6 both sides are separately installed with graphite packing 5, the graphite packing outside of stuffing box packing one side is equipped with the outer dress of three rings, 4, three rings stage clip 3, and the stage clip the other end compresses with a ring 2 and is connected.
The utility model also can be as shown in Figure 3, and the outer stage clip 3 of installing of three rings, 4, three rings is installed in the outside of stuffing box packing 6 one kerbstone disc roots 5, and the stage clip the other end compresses with two rings 7 and is connected.
The utility model also can be as shown in Figure 4, three rings 4 are all installed in the graphite packing outside in the stuffing box packing both sides, two the three outer stage clips 3 of all installing of ring, promptly three rings compress with an end of stage clip and are connected, the other end of one of them stage clip compresses with two rings 7 and is connected, and the other end of another stage clip compresses with a ring 2 and is connected.
Claims (9)
1. non-maintaining Expanded graphite seal sleeve compensator, working pipe is set with outer sleeve outward, between working pipe and the outer sleeve stuffing box packing is housed, the stuffing box packing both sides are installed the graphite packing respectively, it is characterized in that: three rings are installed in the graphite packing outside of stuffing box packing one side, the outer stage clip of installing of three rings, the stage clip the other end compress with a ring or two rings and are connected.
2. non-maintaining Expanded graphite seal sleeve compensator, working pipe is set with outer sleeve outward, between working pipe and the outer sleeve stuffing box packing is housed, the stuffing box packing both sides are installed the graphite packing respectively, it is characterized in that: three rings are all installed in the graphite packing outside of stuffing box packing both sides, two the three outer stage clips of all installing of ring, one of them stage clip the other end compresses with a ring and is connected, and another stage clip the other end compresses with two rings and is connected.
3. non-maintaining Expanded graphite seal sleeve compensator according to claim 1 and 2, it is characterized in that: outer sleeve fixed end and tail pipe are welded to connect.
4. non-maintaining Expanded graphite seal sleeve compensator according to claim 1 and 2 is characterized in that: a ring, two rings and the equal stiffening ring of three rings.
5. non-maintaining Expanded graphite seal sleeve compensator according to claim 4 is characterized in that: a ring, two rings, three are adorned anti-corrosion bearing shell in encircling all.
6. non-maintaining Expanded graphite seal sleeve compensator according to claim 1 and 2, it is characterized in that: outer sleeve inner wall has seam, and two rings are contained in the seam inboard.
7. non-maintaining Expanded graphite seal sleeve compensator according to claim 1 and 2 is characterized in that: a ring outer wall has seam, and seam and outer sleeve are welded to connect.
8. non-maintaining Expanded graphite seal sleeve compensator according to claim 1 and 2, it is characterized in that: the working pipe tail end has anti-decylization.
9. non-maintaining Expanded graphite seal sleeve compensator according to claim 1 and 2, it is characterized in that: the working pipe outer wall is coated with hard chromium layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200164773U CN201443664U (en) | 2009-08-19 | 2009-08-19 | Maintenance-free flexible graphite seal sleeve barrel compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200164773U CN201443664U (en) | 2009-08-19 | 2009-08-19 | Maintenance-free flexible graphite seal sleeve barrel compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443664U true CN201443664U (en) | 2010-04-28 |
Family
ID=42548344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200164773U Expired - Fee Related CN201443664U (en) | 2009-08-19 | 2009-08-19 | Maintenance-free flexible graphite seal sleeve barrel compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443664U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240639A (en) * | 2015-10-22 | 2016-01-13 | 天津智源工贸有限公司 | Novel expansion piece |
| CN108644521A (en) * | 2018-05-28 | 2018-10-12 | 王惠俊 | High stability corrugated combined compensator |
| CN109372855A (en) * | 2018-11-13 | 2019-02-22 | 北京八度阳光科技有限公司 | A kind of carbon fiber pipe of the outer surface with limiting slot |
| CN113685634A (en) * | 2020-05-19 | 2021-11-23 | 中国石油天然气股份有限公司 | Hot water circulation hose short circuit and beam-pumping unit |
-
2009
- 2009-08-19 CN CN2009200164773U patent/CN201443664U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240639A (en) * | 2015-10-22 | 2016-01-13 | 天津智源工贸有限公司 | Novel expansion piece |
| CN108644521A (en) * | 2018-05-28 | 2018-10-12 | 王惠俊 | High stability corrugated combined compensator |
| CN109372855A (en) * | 2018-11-13 | 2019-02-22 | 北京八度阳光科技有限公司 | A kind of carbon fiber pipe of the outer surface with limiting slot |
| CN113685634A (en) * | 2020-05-19 | 2021-11-23 | 中国石油天然气股份有限公司 | Hot water circulation hose short circuit and beam-pumping unit |
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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: 20100428 Termination date: 20110819 |