CN202132636U - Dual-seal filling type rotary compensator - Google Patents
Dual-seal filling type rotary compensator Download PDFInfo
- Publication number
- CN202132636U CN202132636U CN201120204742U CN201120204742U CN202132636U CN 202132636 U CN202132636 U CN 202132636U CN 201120204742 U CN201120204742 U CN 201120204742U CN 201120204742 U CN201120204742 U CN 201120204742U CN 202132636 U CN202132636 U CN 202132636U
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- Prior art keywords
- outer tube
- pipe
- seal
- dual
- filler
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Abstract
The utility model discloses a dual-seal filling type rotary compensator which comprises an inner pipe, a fastener, an outer pipe, a left filling material, filling valves, a right filling material, a sealing ring and a connecting pipe. The inner pipe is sheathed with the outer pipe, and the connecting pipe is hermetically connected with the right end of the outer pipe to form an axial limiting inner pipe. The left filling material is stuffed in a left-section gap between the inner pipe and the outer pipe and is locked on a flange edge of the outer pipe by a gland and the fastener so as to form a primary sealing structure. The sealing ring and the right filling material are sheathed between the inner pipe and a step of the outer pipe to form a secondary sealing structure. Four to sixteen filling valves communicated with a primary sealing cavity are uniformly distributed on the outer wall of the outer pipe to form an online leakage compensating structure. The dual-seal filling type rotary compensator has a dual-seal structure and a good sealing effect, and importantly, in the use process of the dual-seal filling type rotary compensator, once the primary sealing structure generates leakage, the left filling material can be filled through the filling valves to recover sealing under the condition that the adjustment is invalid. The dual-seal filling type rotary compensator has succinct online maintenance and easiness for operation, and also avoids the potential safety hazard brought about by leakage simultaneously and the halt repair cost is reduced greatly.
Description
Technical field
The utility model relates to a kind of pipe safety device, and specifically, the utility model relates to a kind of whirl compensator.
Background technique
Whirl compensator belongs to a kind of pipe safety device; It utilizes and rotates bit shift compensation and the angular compensatory that realization causes because of thermal distortion institute's connecting tube between the inner and outer pipes relatively; Such compensator is strong because of simple in structure, bearing capacity, rotation flexibly and characteristics such as compensation rate is big; In industrial heat supply network, obtain widespread usage, and obtained good using effect.Sealing configuration in the whirl compensator is a key structure, and the sealing structure belongs to material filling type sleeve sealing structure, requires all to keep sealing in static state with dynamically.The realization sealing is not difficult at the product installation initial stage, keeps excellent sealing performance then to be difficult for for a long time, and frequent rotation constitutes the sealing material wearing and tearing, along with filler wear extent increase sealability also descends synchronously.The industry heat supply network carries usually presses operation, shutdown maintenance corollary equipment at any time.Because of in the rotation compensation of existing technology band press the mending-leakage structure, in case whirl compensator leaks excess, can not on-line maintenance or online additional fillers, cause whirl compensator to leak and can not get timely elimination, be prone to form potential safety hazard.
The model utility content
The utility model is primarily aimed at the deficiency of existing technology, proposes a kind ofly on the basis that keeps original structure characteristic and performance, increases the double-sealing filling type whirl compensator of axial seal structure and online mending-leakage structure newly.
The utility model is realized technical goal through following technical proposals.
Double-sealing filling type whirl compensator, it comprises interior pipe, fastening piece, gland, outer tube, left filler, annotates and fill out valve, right filler, seal ring and adapter.Pipe right-hand member outer wall is provided with ring-shaped step one in said, and the outer tube wall stage casing also is provided with ring-shaped step one.Pipe and outer tube fit mutually in said, taking over is tightly connected to constitute in the axial limiting with the outer tube right-hand member manages.Pipe and outer tube left side section radial gap place in said left filler is filled in, and be locked at by the gland of overcoat and fastening piece and constitute the primary seal structure on the outer tube flange edge.Its improvements are: suit seal ring and right filler constitute secondary sealing configuration between the step of interior pipe and outer tube.Be uniformly distributed with 4～16 notes of linking up main seal cavity on the said outer tube outer wall and fill out valve, the notes that are fixedly connected with outer tube are filled out valve and are constituted online mending-leakage structure.
Left filler and right filler in the said structure are graphite, and seal ring is a metal ring.
The utility model compared with prior art has following good effect:
1, double sealing structure is simple, and is easy to manufacture;
2, when leaking appears in the primary seal structure, can fill out online injection filler the valve, realize allowing pressurized maintenance from notes, the hidden danger of in time stopping a leak, Security is good;
3, secondary sealing configuration compresses sealing automatically when there is axial displacement in interior pipe, further improves sealing effect.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
According to accompanying drawing and combine embodiment, the utility model is described further below.
Double-sealing filling type whirl compensator shown in Figure 1, pipe 1, fastening piece 2, gland 3, outer tube 4, left filler 5, notes were filled out valve 6, right filler 7, seal ring 8 and are taken over 9 in it comprised.Pipe 1 right-hand member outer wall is provided with ring-shaped step one in said, and outer tube also is provided with ring-shaped step one.In pipe 1 insert fit from outer tube 4 right-hand members, the step on interior pipe 1 outer wall is positioned at outer tube 4 inwall step right sides, suit seal ring 8 constitutes secondary sealing configuration with right filler 7 between two steps.Secondary sealing configuration is only just brought into play seal action when interior pipe 1 produces axial displacement left, all the other times are in loose shape, so wearing and tearing are less.Pipe 1 and section radial gap places, outer tube 4 left side in said left filler 5 is filled in, and be locked at jointly on outer tube 4 flange edges with fastening piece 2 by the gland 3 of overcoat and constitute the primary seal structure.The primary seal structure is in for a long time and compresses shape, realizes sealing between pipe 1 and the outer tube 4 in left filler 5 is crushed on, and frequent rotation makes left filler 5 produce normal wearing and tearing.Be uniformly distributed with 4～16 notes of linking up main seal cavity on said outer tube 4 outer walls and fill out valve 6, the notes that are fixedly connected with outer tube 4 are filled out valve 6 and are constituted online mending-leakage structure.Present embodiment is the double-sealing filling type whirl compensator of bore DN500mm, on outer tube 4 outer walls, is uniformly distributed with 8 notes and fills out valve 6.After left filler 5 wearing and tearing were excessive, leakage problem must appear in the primary seal structure, and can fill out valve 6 through notes and inject left filler 5 to main seal cavity this moment, realizes on-line maintenance, with this problem of stopping a leak.Said adapter 9 is tightly connected with outer tube 4 right-hand members and makes pipe 1 in the axial limiting.Seal ring 8 is used 316 stainless steel manufacturings in the present embodiment, and left filler 5 is graphite with right filler 7.
The utility model is a double sealing structure, and good sealing effect the more important thing is primary seal structure in the using process in case produce leakage, under the invalid situation of adjustment, can fill out the left filler 5 of valve 6 injections through notes and recover sealing.This kind on-line maintenance is succinct, and processing ease significantly reduces the shutdown maintenance cost, also avoids the potential safety hazard of bringing because of leakage simultaneously.
Claims (3)
1. double-sealing filling type whirl compensator, it comprises interior pipe (1), fastening piece (2), gland (3), outer tube (4), left filler (5), annotates and fill out valve (6), right filler (7), seal ring (8) and adapter (9); Pipe (1) right-hand member outer wall is provided with ring-shaped step one in said, and outer tube (4) inwall stage casing also is provided with ring-shaped step one; Pipe (1) and outer tube (4) fit mutually in said is taken over (9) and is tightly connected to constitute with outer tube (4) right-hand member and manages (1) in the axial limiting; Said left filler (5) is filled in interior pipe (1) and outer tube (4) left side section radial gap place, and is locked at formation primary seal structure on outer tube (4) flange edge by the gland (3) and the fastening piece (2) of overcoat; It is characterized in that: suit seal ring (8) and right filler (7) constitute secondary sealing configuration between the step of interior pipe (1) and outer tube (4); Be uniformly distributed with 4～16 notes of linking up main seal cavity on said outer tube (4) outer wall and fill out valve (6), the notes that are fixedly connected with outer tube (4) are filled out valve (6) and are constituted online mending-leakage structure.
2. double-sealing filling type whirl compensator according to claim 1 is characterized in that: said left filler (5) and right filler (7) are graphite.
3. double-sealing filling type whirl compensator according to claim 1 is characterized in that: said seal ring (8) is a metal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120204742U CN202132636U (en) | 2011-06-17 | 2011-06-17 | Dual-seal filling type rotary compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120204742U CN202132636U (en) | 2011-06-17 | 2011-06-17 | Dual-seal filling type rotary compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132636U true CN202132636U (en) | 2012-02-01 |
Family
ID=45521403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120204742U Expired - Fee Related CN202132636U (en) | 2011-06-17 | 2011-06-17 | Dual-seal filling type rotary compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878381A (en) * | 2012-10-08 | 2013-01-16 | 江苏恒丰波纹管有限公司 | Maintenance-free external-pressing direct buried expansion joint |
| CN111895214A (en) * | 2020-08-13 | 2020-11-06 | 江苏宝恒管件有限公司 | Pressurized plugging device and compensator |
-
2011
- 2011-06-17 CN CN201120204742U patent/CN202132636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878381A (en) * | 2012-10-08 | 2013-01-16 | 江苏恒丰波纹管有限公司 | Maintenance-free external-pressing direct buried expansion joint |
| CN111895214A (en) * | 2020-08-13 | 2020-11-06 | 江苏宝恒管件有限公司 | Pressurized plugging device and compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20150617 |
|
| EXPY | Termination of patent right or utility model |