CN101825203A - Rotary pipeline compensator - Google Patents
Rotary pipeline compensator Download PDFInfo
- Publication number
- CN101825203A CN101825203A CN200910152220A CN200910152220A CN101825203A CN 101825203 A CN101825203 A CN 101825203A CN 200910152220 A CN200910152220 A CN 200910152220A CN 200910152220 A CN200910152220 A CN 200910152220A CN 101825203 A CN101825203 A CN 101825203A
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- main flow
- flow pipe
- shell
- filler
- seal ring
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Abstract
The invention discloses a rotary pipeline compensator, which comprises a main flow pipe, a nut, a gland, a screw, a seal ring, an outer shell, filler and a bushing. The main flow pipe is inserted from the right end of the outer shell; a boss at the left end of the main flow pipe is in clearance fit with an inner hole matched with the outer shell; a sealing cavity is reserved between the main body of the main flow pipe and the inner hole of the outer shell; the seal ring, the filler, the bushing, the filler and the gland are arranged from left to right; the outer shell is integrally connected with the gland through the screw and the nut; the filler is pre-compressed by the gland; and the main flow pipe can rotate opposite to the outer shell. When the compensator runs, the pressure of a medium is introduced from an axial reserved gap between the main flow pipe and the outer shell so as to push the main flow pipe to move rightwards and further compress the filler through the seal ring to directly improve the sealing performance. The invention is suitable for rotary pipeline compensators with various specifications.
Description
Technical field
The present invention relates to a kind of compensation of pipeline device, specifically, the present invention relates to a kind of rotary pipeline compensator that shrink-fit structure is rotated between the internal and external casing that utilizes.
Background technique
Pipeline compensator is the important device that realizes the heat distribution pipe network safe operation, its structural type has multiple, bellow type, spherical formula and bushing type three major types are the common structure form, and the pipeline compensator of different structure has the different compensation forms of expression, and pluses and minuses are respectively arranged.For example, the pipe-type compensator of doing to compensate with rotation is that characteristics obtain the engineering extensive application with simple in structure, withstand voltage height.However, prior art products is short because of the internal and external casing coincidence part, and poor stability during rotation easily produces internal and external casing deflection, thereby increases rotational resistance, reduces the flexibility of rotation compensation.China Patent No. 02258709.8 disclosed a kind of whirl compensator, this technological scheme is at the deficiencies in the prior art, between interior pipe (main flow pipe) and the gland flange that matches, and interior pipe and take between set up ball and constitute rolling structure, the rotational resistance of the relative outer tube of pipe improved flexibility of revolution in this improvement can effectively reduce.But this structure can't be adjusted after wearing and tearing, and easily fouling or oxidation corrosion, all significantly counterrotating flexibility of reduction in medium of the part of rolling structure.
Summary of the invention
The present invention is primarily aimed at the deficiencies in the prior art, proposes a kind of internal and external casing and overlaps the segment length, and rotation is flexible, and the surface wear that is sealed and matched is adjustable, and has the rotary pipeline compensator with pressure medium self-regulated sealing configuration.
The present invention is achieved through the following technical solutions technical goal.
Rotary pipeline compensator, it comprises main flow pipe, nut, gland, screw rod, seal ring, shell, filler and sleeve pipe.Described shell is a tubular member, the left end internal orifice dimension equates with built-in main flow pipe internal orifice dimension, leave Seal cage between main flow pipe outer wall main body and the shell endoporus, seal ring, filler, sleeve pipe, filler and gland are installed from left to right successively, and shell and gland end face are provided with that through hole is installed screw rod and by nut check.Its improvement is: described seal ring left side is provided with boss.Described main flow pipe right part outer wall is provided with ring-shaped step, step right-hand member plane and seal ring left side boss contact matching.Described sleeve position is floated, its endoporus and main flow pipe Spielpassung, and outer wall and the shell endoporus that matches also is a Spielpassung.Interspace in advance between the hole end surface in the left side of described main flow pipe and the shell.
In the said structure, the boss that the seal ring left side is provided with is an obtuse triangle, and boss is that line contacts with main flow pipe left end fitting surface.Reserve the space of 5～10mm between main flow pipe left side and the shell interior edge face, medium enters from the space and promotes main flow pipe and move to right and compress filler and further improve sealing, and its sealability is with the pressure medium adjustment that is directly proportional.
The present invention compared with prior art has following good effect:
1, set up sleeve pipe between the filler, the internal and external casing superposition section that significantly extends is directly improved counterrotating stability;
2, the sleeve position between the filler is floated, and can interlock adjusts the filler of both sides, makes the sealing configuration sealability unanimity of both sides;
3, interspace in advance and help medium and promote main flow pipe and move axially, moving axially with the sealability of sealing configuration of main flow pipe is proportional.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
Rotary pipeline compensator shown in the drawings, it comprises main flow pipe 1, nut 2, gland 3, screw rod 4, seal ring 5, shell 6, filler 7 and sleeve pipe 8.Described main flow pipe 1 inserts from shell 6 right-hand members, annular boss on the main flow pipe 1 left end outer wall and shell 6 endoporus that matches is a Spielpassung, between main flow pipe 1 main body outer wall and shell 6 endoporus is Seal cage, plug is adorned seal ring 5, filler 7, sleeve pipe 8, filler 7 and gland 3 successively from left to right, shell 6 and gland 3 end faces are provided with uniform through hole, screw rod 4 pierces into through hole and connects gland 3 and shells 6 by nut 2, constitutes the rotation that main flow pipe 1 had not only kept sealing but also can doing opposite shell 6.When the present invention moved, pressure medium imported from the axial preset clearance 9 of main flow pipe 1 with shell 6, directly acts on the left side of main flow pipe 1, and promotion main flow pipe 1 moves to right and passes through seal ring 5 further compacting fillers 7.Present embodiment is the rotary pipeline compensation of bore 200mm, and institute's preset clearance is 8mm.Since sleeve pipe 8 inside and outside walls all with accessory Spielpassung mutually, the unsteady filler 7 that helps both sides in its position bears identical impacting force, keeps identical sealing effect.This structure can accomplish to improve sealability with the pressure medium increase.
Claims (3)
1. rotary pipeline compensator, it comprises main flow pipe (1), nut (2), gland (3), screw rod (4), seal ring (5), shell (6), filler (7) and sleeve pipe (8); Described shell (6) is a tubular member, the left end internal orifice dimension equates with built-in main flow pipe (1) internal orifice dimension, leave Seal cage between main flow pipe (1) outer wall main body and shell (6) endoporus, seal ring (5), filler (7), sleeve pipe (8), filler (7) and gland (3) are installed from left to right successively, and shell (6) and gland (3) end face are provided with through hole installation screw rod (4) and are locked by nut (2); It is characterized in that: described seal ring (5) left side is provided with boss; Described main flow pipe (1) right part outer wall is provided with ring-shaped step, step right-hand member plane and seal ring (5) left side boss contact matching; Float in described sleeve pipe (8) position, its endoporus and main flow pipe (1) Spielpassung, and outer wall and shell (1) endoporus that matches also is a Spielpassung; Interspace in advance between the left side of described main flow pipe (1) and the interior hole end surface of shell (6) (9).
2. rotary pipeline compensator according to claim 1 is characterized in that: the boss on described seal ring (5) left side is an obtuse triangle.
3. rotary pipeline compensator according to claim 1 is characterized in that: interspace (9) in advance between 5～10mm between described main flow pipe (1) left side and the interior hole end surface of shell (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910152220A CN101825203A (en) | 2009-03-06 | 2009-07-04 | Rotary pipeline compensator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025709.6 | 2009-03-06 | ||
| CN200910152220A CN101825203A (en) | 2009-03-06 | 2009-07-04 | Rotary pipeline compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101825203A true CN101825203A (en) | 2010-09-08 |
Family
ID=42689288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910152220A Pending CN101825203A (en) | 2009-03-06 | 2009-07-04 | Rotary pipeline compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101825203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762258A (en) * | 2021-02-27 | 2021-05-07 | 江苏永力管道有限公司 | Maintenance-free high-pressure rotary compensator |
-
2009
- 2009-07-04 CN CN200910152220A patent/CN101825203A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762258A (en) * | 2021-02-27 | 2021-05-07 | 江苏永力管道有限公司 | Maintenance-free high-pressure rotary compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100908 |