CN212338532U - Rotary compensator - Google Patents
Rotary compensator Download PDFInfo
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- CN212338532U CN212338532U CN202020255439.XU CN202020255439U CN212338532U CN 212338532 U CN212338532 U CN 212338532U CN 202020255439 U CN202020255439 U CN 202020255439U CN 212338532 U CN212338532 U CN 212338532U
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- sealing filler
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- shell
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Abstract
The utility model provides a rotary compensator, its includes casing (3), inner tube (9), is equipped with between the excircle of inner tube and the casing circle sealed packing (5), and sealed packing's right side is equipped with presses cover (6) that compress tightly sealed packing, is equipped with packing ring (4) on sealed packing left side, and the hole cooperation ground of packing ring overlaps on the inner tube, and the excircle of packing ring cooperatees with the interior circle of casing, and the edge of packing ring extends a body (10) left, and the body can contact with lateral wall (2) of casing. The pressure sleeve has the advantages that the pressure sleeve can compress the sealing filler under a small pressure, when the water pressure in the shell is increased, the pressure on the gasket is also increased, and the radial expansion amount of the sealing filler is increased; when the water pressure in the shell is reduced, the pressure on the gasket is also reduced, the radial expansion amount of the sealing filler is reduced, the friction force between the sealing filler and the inner pipe or the shell is reduced, and the abrasion of the sealing filler is reduced. The average abrasion loss of the sealing filler is small, the service life is prolonged, the sealing filler is pressed on two sides, and the sealing performance is better.
Description
Technical Field
The invention relates to a rotary compensator which is used for compensating expansion with heat and contraction with cold of a hot water pipeline.
Background
The rotary compensator is used for compensating the expansion caused by heat and contraction caused by cold of a hot water pipeline and structurally comprises a shell, sealing filler is arranged between the outer circle of an inner pipe and the inner circle of the shell, a pressing sleeve is arranged on the right side of the sealing filler, the pressing sleeve applies pressure to the sealing filler in the axial direction to enable the sealing filler to expand in the radial direction, the acting force of the pressing sleeve is determined according to the maximum working pressure of the hot water pipeline so as to ensure that leakage does not occur at the maximum working pressure, and the rotary compensator has the defects that no matter how large the pressure in the hot water pipeline is, when the inner pipe or the shell rotates, the abrasion loss of the sealing filler is the same, and when the inner pipe or the shell rotates for a certain.
Disclosure of Invention
Aiming at the existing defects, the invention provides a rotary compensator which can automatically adjust the pressure applied on a sealing filler according to the pressure in a hot water pipeline, reduce the unnecessary abrasion of the sealing filler and prolong the service life of the rotary compensator.
The invention has the technical scheme that the rotary compensator comprises a shell 3 and an inner tube 9, wherein the left part of the inner tube is positioned in the shell, a sealing filler 5 is arranged between the excircle of the inner tube and the inner circle of the shell, and a pressing sleeve 6 for pressing the sealing filler is arranged on the right side of the sealing filler.
The sealing packing is characterized in that the sealing packing can be compressed by the pressing sleeve under a smaller pressure, when the water pressure in the shell is increased, the pressure on the gasket is also increased, and the radial expansion of the sealing packing is increased; when the water pressure in the shell is reduced, the pressure on the gasket is also reduced, the radial expansion amount of the sealing filler is reduced, the friction force between the sealing filler and the inner pipe or the shell is reduced, and the abrasion of the sealing filler is reduced.
The beneficial effects are that, the wearing and tearing of sealing filler reduce along with the reduction of water pressure, and the average wearing and tearing volume of sealing filler is less than prior art's average wearing and tearing volume, and sealing filler is two-sided pressurized, and sealing performance is better.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
The figures are numbered: 1-connecting pipe, 2-side wall, 3-shell, 4-gasket, 5-sealing filler, 6-pressing sleeve, 7-spring, 8-bolt, 9-inner pipe and 10-pipe body.
Detailed Description
The utility model provides a rotary compensator, it includes casing 3, it has takeover 1 to peg graft sealedly on the lateral wall 2 of casing, the left part of inner tube 9 is located the casing, leave the clearance between the left end of inner tube and the lateral wall of casing, be equipped with sealing filler 5 between the excircle of inner tube and the casing interior circle, sealing filler's right side is equipped with presses cover 6, the left end face that presses the cover covers sealing filler's right-hand member face, the radial outward flange limit that stretches out of right-hand member that presses the cover, a plurality of bolts 8 have been inserted in the flange limit of pressing the cover and the flange limit of casing right-hand member, the bolt top spin has the nut, the cover has spring 7 on the bolt, the spring is located between the flange limit of nut and pressure cover, it has the clearance to leave between.
A gasket 4 is arranged on the left side of the sealing filler, a hole of the gasket is sleeved on the inner pipe in a matching mode, the outer circle of the gasket is matched with the inner circle of the shell, a pipe body 10 extends leftwards from the edge of the gasket, and the pipe body can be in contact with the side wall 2 of the shell.
The nut is screwed down, the pressing sleeve compresses the sealing filler with smaller pressure, and the inner pipe and the shell can be sealed.
The sealing filler is made of flexible graphite or high-temperature-resistant rubber.
When the water pressure in the shell is increased, the pressure on the gasket is also increased, the gasket applies pressure to the sealing filler from the left side, and the radial expansion amount of the sealing filler is increased; the radial expansion amount of the sealing filler is increased as the water pressure is higher, so that the shell and the inner pipe are reliably sealed, when the water pressure in the shell is reduced, the pressure on the gasket is also reduced, the radial expansion amount of the sealing filler is reduced, the friction force between the sealing filler and the inner pipe or the shell is reduced, and the abrasion of the sealing filler is reduced.
Claims (1)
1. The utility model provides a rotary compensator, its includes casing (3), inner tube (9), the left part of inner tube is arranged in the casing, be equipped with between the excircle of inner tube and the casing in the circle sealed packing (5), sealed packing's right side is equipped with presses cover (6) that compress tightly sealed packing, characterized by is equipped with packing ring (4) on sealed packing left side, the hole cooperation ground cover of packing ring is on the inner tube, the excircle of packing ring cooperatees with the interior circle of casing, the edge of packing ring extends a body (10) left, the body can contact with lateral wall (2) of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020255439.XU CN212338532U (en) | 2020-03-05 | 2020-03-05 | Rotary compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020255439.XU CN212338532U (en) | 2020-03-05 | 2020-03-05 | Rotary compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212338532U true CN212338532U (en) | 2021-01-12 |
Family
ID=74085607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020255439.XU Active CN212338532U (en) | 2020-03-05 | 2020-03-05 | Rotary compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212338532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762257A (en) * | 2021-02-27 | 2021-05-07 | 江苏永力管道有限公司 | Thrust-free self-sealing rotary compensator |
-
2020
- 2020-03-05 CN CN202020255439.XU patent/CN212338532U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762257A (en) * | 2021-02-27 | 2021-05-07 | 江苏永力管道有限公司 | Thrust-free self-sealing rotary compensator |
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