CN211010364U - Combined multi-way end face sealing rotary compensator - Google Patents
Combined multi-way end face sealing rotary compensator Download PDFInfo
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- CN211010364U CN211010364U CN201921524127.8U CN201921524127U CN211010364U CN 211010364 U CN211010364 U CN 211010364U CN 201921524127 U CN201921524127 U CN 201921524127U CN 211010364 U CN211010364 U CN 211010364U
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Abstract
The utility model relates to a combined multi-channel end face sealing rotary compensator, which comprises a rotary seat, a rotary core tube and a packing gland, wherein sealing packing is arranged in a sealing cavity, an inner convex ring is arranged on the inner wall of the rotary seat, a step-shaped outer boss is arranged at the right end of the rotary core tube, and an assembly gap between the outer boss and the inner convex ring is positioned at the middle position of the bottom of the sealing cavity; the outer boss of the rotating core pipe is at least provided with two steps, and an end face sealing ring is embedded between the side face of each step and the inner convex ring. The sealing packing comprises a pressure variable metal ring and a nonmetal flexible packing, the pressure variable metal ring radially expands and deforms under the action of external force, and the inner side and the outer side of the pressure variable metal ring are tightly matched with the side wall of the sealing cavity. The utility model discloses be equipped with multistage end face seal ring between the convex ring in outer boss of rotatory core pipe and the outer tube, the sealing ring forms positive correlation self sealss effect along with pipeline medium pressure's change to reach the sealed effect of reinforcing. The utility model discloses have stronger high temperature resistant, high pressure performance, sealed effectual, long service life, simple to operate.
Description
Technical Field
The utility model belongs to the technical field of the pipeline compensator technique and specifically relates to a modular multichannel end face seal rotary compensator.
Background
The pipe compensator generally needs to adopt a sealing filler to keep the pipe sealed and prevent the medium from leaking. The existing sleeve compensator compensates the displacement of a pipeline through the extension of the sliding core pipe, the sealing between the sliding core pipe and the filler cannot keep a good state for a long time, and the leakage is easy to generate after long-term use. A sealing filler cavity is arranged between the inner pipe and the outer pipe of the rotary compensator, sealing filler is filled in the sealing cavity, and the sealing filler is compressed by a filler gland to realize sealing. The fit clearance is great between rotary compensator's the rotary part, receives pipeline thrust effect, and the poor stability of interior outer tube relative rotation easily produces the eccentric deflection of disalignment, increases the rotation resistance for wearing and tearing easily or by crushing in the high-pressure pipeline, can influence the sealing performance of sealing filler after using a period promptly, lead to sealed inefficacy, appear leaking. If the detection and the maintenance are not timely, safety production accidents can even be caused.
The existing pipeline compensator generally adopts graphite packing or asbestos packing as sealing packing, and has a good sealing effect under a common working condition. For pipelines for conveying high-temperature and high-pressure media, the packing materials are greatly lost in the deflection and displacement processes of the compensator due to the inevitable assembly clearance of the pipeline compensator and the lower strength of the traditional sealing packing and the action of the high-temperature and high-pressure media. On the other hand, the assembly gap of the conventional pipe compensator is usually designed to be tightly attached to the outer surface of the inner core pipe, and in the working process, a medium can permeate to the root of the sealing filler along the assembly gap, so that the sealing filler is accelerated to be lost and blown away. The labyrinth effect failure of the function of preventing the medium leakage is easily caused by the design, so that the loss of the sealing packing of the compensator is large, the leakage is easy, and the service life is prolonged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a have stronger high temperature resistant, high pressure performance, sealed effectual, the operation is nimble, long service life, simple to operate's combination formula multichannel end face seal rotary compensator.
The purpose of the utility model is realized by adopting the following technical scheme:
the combined type multi-end face sealing rotary compensator comprises a rotary seat, a rotary core pipe and a packing gland, wherein the rotary core pipe is sleeved in the rotary seat, the end face of the packing gland, the inner surface of the rotary seat and the outer surface of the rotary core pipe form a packing sealing cavity, sealing packing is arranged in the sealing cavity, an inner convex ring is arranged on the inner wall of the rotary seat, a stepped outer boss matched with the inner convex ring is arranged at the right end of the rotary core pipe, and an assembly gap formed between the outer boss and the inner convex ring is positioned in the middle of the bottom of the sealing cavity; the outer boss of the rotating core pipe is at least provided with two steps, and an end face sealing ring is embedded between the side face of each step and the opposite face of the inner convex ring.
As the preferred technical scheme of the utility model, the sealing filler comprises a pressure variable metal ring and a nonmetal flexible filler, the pressure variable metal ring generates radial expansion and deformation under the action of external force, so that the inner side edge and the outer side edge of the pressure variable metal ring are tightly matched with the side wall of the sealing cavity; meanwhile, the pressure variable metal ring is tightly combined with the nonmetal flexible packing, so that the sealing effect is achieved.
As the preferred technical scheme of the utility model, the pressure-variable metal ring is formed by bending a hollow metal tube or a metal sheet with a semicircular, arc-shaped or V-shaped cross section; the metal hollow pipe comprises a hollow round pipe or an oval hollow pipe.
As the preferred technical scheme of the utility model, press variable metal ring to include closed becket or one side open-ended C shape becket.
As the utility model discloses a preferred technical scheme, the seal packing includes two at least layers of pressure change formula becket and two-layer nonmetal flexible packing, and first pressure becomes the formula becket and establishes in the bottom in sealed chamber, then in proper order first nonmetal flexible packing, the second pressure becomes formula becket, the nonmetal flexible packing of second.
As the preferred technical scheme of the utility model, first pressure becomes formula becket and comprises the bending of hollow metal tube, and the second pressure becomes formula becket and comprises arc or the bending of V-arrangement sheetmetal.
As the utility model discloses a preferred technical scheme, first pressure becomes formula becket is the closed becket of port welded, and the second is pressed and is become formula becket is one side open-ended C shape becket.
As the utility model discloses a preferred technical scheme, press variable metal ring to be copper ring or aluminium alloy ring, nonmetal flexible packing is graphite packing or asbestos packing.
As the preferred technical scheme of the utility model, the outer boss of the rotating core tube is provided with an upper, a middle and a lower three-stage steps, and the end face sealing rings respectively embedded between the side faces of the upper and the middle steps and the opposite faces of the inner convex ring are metal plane sealing rings; the right end face of the rotating core pipe is set to be an arc-shaped face.
As the utility model discloses a preferred technical scheme, the roating seat is integrated fashioned overall structure reducing pipe, and the roating seat left end is equipped with left flange, and the roating seat right-hand member is equipped with the toper pipe that the diameter shrinks gradually and reduces be connected and fix through bolt and nut subassembly between gland and the left flange.
The utility model has the advantages that: compared with the prior art, the utility model adopts the soft and easily-stretched pressure-variable metal ring and the nonmetal flexible packing to be compressed under the action of external force to form a composite sealing structure, so that the metal ring and the flexible packing are radially expanded, and the edges of the inner side and the outer side of the metal ring are tightly matched with the side wall of the sealing cavity; meanwhile, a multistage end face metal sealing ring is embedded between the outer boss of the rotating core pipe and the inner convex ring of the outer sleeve, and the multistage end face sealing ring can form positive correlation self-sealing effect along with the change of the medium pressure of the pipeline, so that the sealing effect is further enhanced.
When the compensator works, the multistage end face sealing ring and the pressure-variable metal ring can separate direct contact of high-temperature and high-pressure media and the flexible sealing filler, effectively reduce the loss of the flexible filler, and simultaneously achieve the effects of prolonging the service life of the sealing filler and strengthening sealing. The multistage metal sealing ring forms end face sealing in a pressure-bearing state, has small friction force and good sealing effect, and is favorable for flexible operation of the compensator. Not only forming end face seal, but also playing the roles of anti-drop and antifriction.
The utility model discloses have stronger high temperature resistant, high pressure performance, sealed effectual, bearing strength is big, long service life, simple to operate. It is especially suitable for high temperature and high pressure heat distribution pipe network, and is safe and reliable in use, and favorable for energy saving and environment protection.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the device comprises a rotary core pipe, 2, a packing gland, 3, a rotary seat, 4, a bolt and nut assembly, 5, a pressure variable metal ring, 6, an end face sealing ring, 7, a nonmetal flexible packing, 11, an outer boss, 31, a left flange, 32, an inner convex ring, 33 and a conical pipe.
Detailed Description
The invention will be further described with reference to the following detailed description of the embodiments with reference to the accompanying drawings:
as shown in fig. 1, the combined multi-channel end face sealing rotary compensator comprises a rotary base 3, a rotary core tube 1 and a packing gland 2, wherein the rotary core tube 1 is sleeved in the rotary base 3, the end face of the packing gland 2, the inner surface of the rotary base 3 and the outer surface of the rotary core tube 1 form a packing sealing cavity, sealing packing is arranged in the sealing cavity, an inner collar 32 is arranged on the inner wall of the rotary base 3, a step-shaped outer boss 11 matched with the inner collar 32 is arranged at the right end of the rotary core tube 1, and an assembly gap formed between the outer boss 11 and the inner collar 32 is positioned at the middle position of the bottom of the sealing cavity; the outer boss 11 of the rotating core tube 1 is at least provided with two steps, and an end face sealing ring 6 is embedded between the side face of each step and the opposite face of the inner convex ring 32.
In the embodiment, the sealing filler comprises a pressure variable metal ring 5 and a nonmetal flexible filler 7, and the pressure variable metal ring 5 radially expands and deforms under the action of external force, so that the inner side edge and the outer side edge of the pressure variable metal ring are tightly matched with the side wall of the sealing cavity; meanwhile, the pressure-variable metal ring 5 is tightly combined with the nonmetal flexible packing 7, so that the sealing effect is achieved. The pressure-variable metal ring 5 is formed by bending a metal hollow pipe or a metal sheet with a semicircular, arc-shaped or V-shaped section; the metal hollow pipe comprises a hollow round pipe or an oval hollow pipe. The pressure-variable metal ring 5 includes a closed metal ring or a C-shaped metal ring having one side opened.
The sealing filler comprises at least two layers of variable metal rings 5 and two layers of non-metal flexible fillers 7, wherein a first variable metal ring is arranged at the bottom of a sealing cavity, and then the first non-metal flexible filler, a second variable metal ring and a second non-metal flexible filler are sequentially arranged. The first pressure variable metal ring is formed by bending a hollow metal pipe, and the second pressure variable metal ring is formed by bending an arc-shaped or V-shaped metal sheet. The first pressure-variable metal ring is a closed metal ring with a welded port, and the second pressure-variable metal ring is a C-shaped metal ring with an opening at one side. The pressure-variable metal ring 5 is a copper ring or an aluminum alloy ring, and the non-metal flexible packing 7 is a graphite packing or an asbestos packing.
The outer boss 11 of the rotating core tube 1 of the embodiment is provided with an upper step, a middle step and a lower step, an end face sealing ring 6 is respectively embedded between the side face of the upper step and the middle step and the opposite face of the inner convex ring 32, and the end face sealing ring 6 is a copper plane ring or an aluminum alloy plane ring. The right end face of the rotating core pipe 1 is an arc-shaped face, the rotating base 3 is an integrally thermal-formed integral-structure reducer pipe, the left end of the rotating base 3 is provided with a left flange 31, and the right end of the rotating base 3 is provided with a conical pipe with the diameter gradually reduced; the packing gland 2 is connected and fixed with the left flange 31 through a bolt and nut assembly 4.
The above embodiments are only for illustrating the conception and technical features of the present invention, and the purpose thereof is to make the technical personnel skilled in the art understand the technical solution and implementation mode of the present invention, and thus the protection scope of the present invention can not be limited thereby. All equivalent substitutions or equivalent changes made according to the technical scheme of the utility model are covered in the protection scope of the utility model.
Claims (10)
1. The utility model provides a modular multichannel end face seal rotary compensator, includes roating seat, rotatory core pipe and gland, and rotatory core pipe box is established in the roating seat, and gland's terminal surface constitutes the sealed chamber of packing with the internal surface of roating seat, the surface of rotatory core pipe, and sealed intracavity is equipped with sealing filler, characterized by: an inner convex ring is arranged on the inner wall of the rotating seat, a step-shaped outer boss matched with the inner convex ring is arranged at the right end of the rotating core pipe, and an assembly gap formed between the outer boss and the inner convex ring is positioned in the middle of the bottom of the sealing cavity;
the outer boss of the rotating core pipe is at least provided with two steps, and an end face sealing ring is embedded between the side face of each step and the opposite face of the inner convex ring.
2. The combined multi-pass end face seal rotary compensator of claim 1, wherein: the sealing packing comprises a pressure variable metal ring and a nonmetal flexible packing, and the pressure variable metal ring radially expands and deforms under the action of external force to enable the inner side edge and the outer side edge of the pressure variable metal ring to be tightly matched with the side wall of the sealing cavity; meanwhile, the pressure variable metal ring is tightly combined with the nonmetal flexible packing, so that the sealing effect is achieved.
3. The combined multi-pass end face seal rotary compensator of claim 2, wherein: the pressure-variable metal ring is formed by bending a hollow metal pipe or a metal sheet with a semicircular, arc-shaped or V-shaped section; the metal hollow pipe comprises a hollow round pipe or an oval hollow pipe.
4. The combined multi-pass end face seal rotary compensator of claim 2, wherein: the pressure-variable metal ring comprises a closed metal ring or a C-shaped metal ring with one side opened.
5. The combined multi-pass end face seal rotary compensator of claim 2, wherein: the sealing packing comprises at least two layers of variable metal rings and two layers of non-metal flexible packing, wherein the first variable metal ring is arranged at the bottom of the sealing cavity, and then the first non-metal flexible packing, the second variable metal ring and the second non-metal flexible packing are sequentially arranged.
6. The combined multi-pass end face seal rotary compensator of claim 5, wherein: the first pressure variable metal ring is formed by bending a hollow metal pipe, and the second pressure variable metal ring is formed by bending an arc-shaped or V-shaped metal sheet.
7. The combined multi-pass end face seal rotary compensator of claim 6, wherein: the first pressure variable metal ring is a closed metal ring with a welded port, and the second pressure variable metal ring is a C-shaped metal ring with an opening at one side.
8. The combined multi-pass end face seal rotary compensator of any of claims 2 to 7, wherein: the pressure-variable metal ring is a copper ring or an aluminum alloy ring, and the non-metal flexible packing is a graphite packing or an asbestos packing.
9. The combined multi-pass end face seal rotary compensator of claim 1, wherein: the outer boss of the rotating core pipe is provided with an upper step, a middle step and a lower step, and end face sealing rings which are respectively embedded between the side faces of the upper step and the middle step and the opposite face of the inner convex ring are metal plane sealing rings; the right end face of the rotating core pipe is set to be an arc-shaped face.
10. The combined multi-pass end face seal rotary compensator of claim 1, wherein: the rotary seat is an integrally formed integral structure reducer pipe, a left flange is arranged at the left end of the rotary seat, a conical pipe with the diameter gradually reduced is arranged at the right end of the rotary seat, and the packing gland and the left flange are connected and fixed through a bolt and nut assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921524127.8U CN211010364U (en) | 2019-09-14 | 2019-09-14 | Combined multi-way end face sealing rotary compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921524127.8U CN211010364U (en) | 2019-09-14 | 2019-09-14 | Combined multi-way end face sealing rotary compensator |
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| Publication Number | Publication Date |
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| CN211010364U true CN211010364U (en) | 2020-07-14 |
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| CN201921524127.8U Active CN211010364U (en) | 2019-09-14 | 2019-09-14 | Combined multi-way end face sealing rotary compensator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657308A (en) * | 2019-09-14 | 2020-01-07 | 江苏永力管道有限公司 | Combined multi-way end face sealing rotary compensator |
| WO2021047670A1 (en) * | 2019-09-14 | 2021-03-18 | 江苏永力管道有限公司 | Metal-pressure-ring and sealing-packing composite device and manufacturing method therefor |
-
2019
- 2019-09-14 CN CN201921524127.8U patent/CN211010364U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657308A (en) * | 2019-09-14 | 2020-01-07 | 江苏永力管道有限公司 | Combined multi-way end face sealing rotary compensator |
| WO2021047669A1 (en) * | 2019-09-14 | 2021-03-18 | 江苏永力管道有限公司 | Combined multi-end-face sealing rotary compensator |
| WO2021047670A1 (en) * | 2019-09-14 | 2021-03-18 | 江苏永力管道有限公司 | Metal-pressure-ring and sealing-packing composite device and manufacturing method therefor |
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