CN220957333U - Multistage sealed pipeline compensation sealing device - Google Patents
Multistage sealed pipeline compensation sealing device Download PDFInfo
- Publication number
- CN220957333U CN220957333U CN202322604809.2U CN202322604809U CN220957333U CN 220957333 U CN220957333 U CN 220957333U CN 202322604809 U CN202322604809 U CN 202322604809U CN 220957333 U CN220957333 U CN 220957333U
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- sealing
- outer sleeve
- pipe
- core tube
- movable core
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- 238000007789 sealing Methods 0.000 title claims abstract description 94
- 238000003466 welding Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000012856 packing Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012791 sliding layer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of pipeline sealing, and provides a multistage-sealing pipeline compensation sealing device, which comprises a fixed core pipe; one end of the outer sleeve is connected with the fixed core tube; one end of the flow guide pipe is connected with the fixed core pipe, the flow guide device is positioned in the outer sleeve, and a sliding space is formed between the outer sleeve and the flow guide pipe; one end of the movable core tube is arranged in the sliding space in a sliding way, and one end of the movable core tube, which is close to the outer sleeve, is provided with a limiting boss; the stop gear sets up in outer sleeve one end of keeping away from fixed core pipe, and stop gear is used for preventing that spacing boss breaks away from the slip space. Through the technical scheme, the problems that a mechanical sealing device in a heating power pipeline in the prior art is low in sealing performance and easy to damage are solved.
Description
Technical Field
The utility model relates to the technical field of pipeline sealing, in particular to a pipeline compensation sealing device with multistage sealing.
Background
At present, a mechanical sealing device with displacement compensation is used in a heating power pipeline, only a single sealing mode is used in a sealing structure, the sealing performance is not strong, the damage is easy, and the maintenance cost is increased. The sliding layer is damaged due to sediment accumulation in the heating pipeline or entering the sliding surface of the mechanical sealing device, friction is increased, the sealing element is possibly damaged, the sealing element is invalid, and leakage is caused.
Disclosure of utility model
The utility model provides a multistage sealed pipeline compensation sealing device, which solves the problems of weak sealing performance and easy damage of a mechanical sealing device in a thermodynamic pipeline in the related technology.
The technical scheme of the utility model is as follows:
a multi-stage sealed pipeline compensation sealing device comprises
Fixing the core tube;
one end of the outer sleeve is connected with the fixed core tube;
The guide pipe is connected with the fixed core pipe at one end, the guide pipe is positioned in the outer sleeve, and a sliding space is formed between the outer sleeve and the guide pipe;
The movable core tube is arranged in the sliding space in a sliding way, a limiting boss is arranged at one end of the movable core tube, which is close to the outer sleeve, a plurality of sealing grooves are formed in one side, which is close to the outer sleeve, of the limiting boss, and sealing rings are arranged in the plurality of sealing grooves;
and the limiting mechanism is arranged at one end of the outer sleeve, which is far away from the fixed core tube, and is used for preventing the limiting boss from separating from the sliding space.
As a further technical scheme, the limit boss is close to one side of the outer sleeve and is provided with a plurality of guide grooves, the guide grooves are uniformly distributed on two sides of the seal groove, and guide belts are arranged in the guide grooves.
As a further technical scheme, the limiting mechanism comprises
The welding flange is arranged at one end of the outer sleeve, which is far away from the fixed core tube;
The pressing plate flange is sleeved on the movable core pipe, and the inner diameter of the pressing plate flange is smaller than the outer diameter of the limiting boss;
The connecting piece is used for connecting the welding flange and the pressing plate flange.
As a further technical proposal, also comprises
The sealing packing chamber is arranged at one end, far away from the welding flange, of the pressing plate flange and is abutted with the outer wall of the movable core pipe;
And the sealing gasket is positioned between the welding flange and the pressing plate flange.
As a further technical proposal, also comprises
The sealing piece is arranged at one end of the flow guide pipe away from the fixed core pipe, and is abutted with the inner wall of the movable core pipe.
The working principle and the beneficial effects of the utility model are as follows:
In order to solve the problems of weak sealing performance and easy damage of a mechanical sealing device in a thermodynamic pipeline in the related technology, a flow guide pipe is arranged at one end of a fixed core pipe, which is close to a movable core pipe, one end of the movable core pipe slides in a sliding space formed by an outer sleeve and the flow guide pipe, displacement compensation is carried out on the thermodynamic pipeline through the sliding of the movable core pipe, the flow guide pipe can prevent the radius of the pipeline from suddenly increasing, the flow guide pipe can prevent turbulent flow of liquid in the thermodynamic pipeline due to sudden change of the radius of the pipeline while playing a role in guiding, the liquid in the thermodynamic pipeline stably flows, impact on the pipeline is reduced, and meanwhile, sediment accumulation in the sealing device can be prevented by the flow guide pipe, and the sealing device is protected. The limiting mechanism can prevent the limiting boss of the movable core tube from falling out of the sliding space, and the stability of connection of the sealing device is ensured. When the sealing device is used, the guide pipe is firstly fixed on the inner wall of the fixed core pipe, then the inner wall of the outer sleeve is fixed with the fixed core pipe, a sliding space is formed between the outer sleeve and the guide pipe, one end of the movable core pipe is arranged in the sliding space, the movable core pipe can slide in the sliding space, when the limiting boss of the movable core pipe is positioned on one side of the guide pipe away from the fixed core pipe, the limiting mechanism is abutted with the limiting boss, the movable core pipe is prevented from falling out of the sliding space, and the connection stability of the sealing device is ensured. The liquid in the pipeline flows through the movable core pipe, the flow guide pipe and the fixed core pipe in sequence, and the sealing performance and the service life of the sealing device can be improved through the protection effect of the flow guide pipe.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
In the figure: 1. the device comprises a fixed core tube, 2, an outer sleeve, 3, a flow guide tube, 4, a sliding space, 5, a movable core tube, 6, a limiting boss, 7, a limiting mechanism, 8, a sealing ring, 9, a guide belt, 10, a welding flange, 11, a pressing plate flange, 12, a connecting piece, 13, a sealing packing chamber, 14, a sealing gasket, 15 and a sealing piece.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-2, the present embodiment proposes
A multi-stage sealed pipeline compensation sealing device comprises
Fixing the core tube 1;
the outer sleeve 2, one end of the outer sleeve 2 is connected with the fixed core tube 1;
The guide pipe 3, one end of the guide pipe 3 is connected with the fixed core pipe 1, the guide pipe 3 is positioned in the outer sleeve 2, and a sliding space 4 is formed between the outer sleeve 2 and the guide pipe 3;
The movable core tube 5, one end of the movable core tube 5 is slidably arranged in the sliding space 4, one end of the movable core tube 5, which is close to the outer sleeve 2, is provided with a limiting boss 6, one side, which is close to the outer sleeve 2, of the limiting boss 6 is provided with a plurality of sealing grooves, and sealing rings 8 are arranged in the plurality of sealing grooves;
The limiting mechanism 7 is arranged at one end of the outer sleeve 2 far away from the fixed core tube 1, and the limiting mechanism 7 is used for preventing the limiting boss 6 from being separated from the sliding space 4.
In this embodiment, in order to solve the problem that the mechanical sealing device in the thermal pipeline in the related art is not strong in sealing performance and is easy to damage, a flow guide pipe 3 is arranged at one end of the fixed core pipe 1, which is close to the movable core pipe 5, one end of the movable core pipe 5 slides in a sliding space 4 formed by the outer sleeve 2 and the flow guide pipe 3, displacement compensation is performed on the thermal pipeline through the sliding of the movable core pipe 5, the flow guide pipe 3 can prevent liquid in the thermal pipeline from forming turbulent flow due to sudden change of the radius of the pipeline while playing a role in guiding flow, the liquid in the thermal pipeline stably flows, impact on the pipeline is reduced, meanwhile, the flow guide pipe 3 can also prevent sediment from being accumulated in the sealing device, and plays a role in protecting the sealing device. The limiting mechanism 7 can prevent the limiting boss 6 of the movable core tube 5 from falling out of the sliding space 4, so that the connection stability of the sealing device is ensured.
Specifically, when the sealing device is used, firstly, a section of the guide pipe 3 is fixed on the inner wall of the fixed core pipe 1, then the inner wall of one end of the outer sleeve 2 is fixed with the fixed core pipe 1, a sliding space 4 is formed between the outer sleeve 2 and the guide pipe 3, one end of the movable core pipe 5 is arranged in the sliding space 4, the movable core pipe 5 can slide in the sliding space 4, when the limit boss 6 of the movable core pipe 5 is positioned on one side of the guide pipe 3 far away from the fixed core pipe 1, the limit mechanism 7 is abutted with the limit boss 6, the movable core pipe 5 is prevented from falling out of the sliding space 4, and the connection stability of the sealing device is ensured. The inside of the outer sleeve 2 is hard-plated with chromium, the wear resistance is good, the friction during sliding of the movable core tube 5 is reduced, liquid in the pipeline flows through the movable core tube 5, the guide tube 3 and the fixed core tube 1 in sequence, and the sealing performance and the service life of the sealing device can be improved through the protection effect of the guide tube 3. In order to ensure that the sealing device has good sealing performance, a plurality of sealing grooves are formed in the limiting boss 6, sealing rings 8 are arranged in each sealing groove, the sealing rings 8 can be rubber O-shaped rings, rubber Y-shaped rings and flexible graphite rings, and the rubber O-shaped rings and the Y-shaped rings have good sealing effects under ageing resistance, corrosion resistance, dynamic state and static state, and the flexible graphite has good lubricating performance and strong compression resistance. The sealing effect is improved by combining and sealing flexible graphite with the rubber ring. When one of the sealing rings 8 fails, the other sealing rings 8 can continue to seal, so that the reliability of the sealing device is improved.
Further, the limit boss 6 is close to one side of the outer sleeve 2 and is provided with a plurality of guide grooves, the guide grooves are uniformly distributed on two sides of the sealing groove, and guide belts 9 are arranged in the guide grooves.
In this example, guide grooves are further distributed on two sides of the sealing groove, the hardness of the guide belt 9 installed in the guide grooves is smaller than that of the outer sleeve 2 and the movable core tube 5, and when the movable core tube 5 slides along the sliding space 4, the outer sleeve 2 and the movable core tube 5 can be protected.
Further, the stopper mechanism 7 includes
The welding flange 10 is arranged at one end of the outer sleeve 2 far away from the fixed core tube 1;
The pressing plate flange 11 is sleeved on the movable core pipe 5, and the inner diameter of the pressing plate flange 11 is smaller than the outer diameter of the limiting boss 6;
And a connecting member 12, wherein the connecting member 12 is used for connecting the welding flange 10 and the pressing plate flange 11.
In this embodiment, the welding flange 10 and the outer sleeve 2 are fixedly connected together, and after the limit boss 6 of the movable core tube 5 is located in the sliding space 4, the pressing plate flange 11 and the welding flange 10 are connected together through the connecting piece 12, so that the installation of the whole sealing device is completed. When spacing boss 6 is located the one end that the fixed core pipe 1 was kept away from to sliding space 4, spacing boss 6 can with clamp plate flange 11 butt, guarantee the stability of activity core pipe 5 connection.
Further, also include
The sealing packing chamber 13 is arranged at one end of the pressing plate flange 11 far away from the welding flange 10, and the sealing packing chamber 13 is abutted with the outer wall of the movable core tube 5;
Gasket 14, gasket 14 is located between welding flange 10 and platen flange 11.
In this embodiment, in order to further improve the sealing performance of the device, a sealing filler chamber 13 and a sealing gasket 14 are further provided, after the sealing filler chamber 13 is filled with sealing filler, a sealing space is also formed among the pressing plate flange 11, the movable core pipe 5 and the welding flange 10, flexible graphite is filled in the sealing filler chamber 13 under high pressure, and when the combined sealing fails in front of extreme conditions, the flexible graphite swells when meeting water, so that the sealing device can still be normally used.
Further, also include
The sealing element 15 is arranged at one end of the flow guide pipe 3 far away from the fixed core pipe 1, and the sealing element 15 is abutted with the inner wall of the movable core pipe 5.
In this embodiment, in order to further improve the barrier property of honeycomb duct 3, set up sealing member 15 in the one end of honeycomb duct 3 and movable core pipe 5 butt, sealing member 15 can further avoid silt to enter into in the slip space 4, simultaneously at the gliding in-process of movable core pipe 5, sealing member 15 can play the supporting role, reduces the frictional force between movable core pipe 5 and the honeycomb duct 3, further protects movable core pipe 5.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (5)
1. A multi-stage sealed pipeline compensation sealing device is characterized by comprising
A fixed core tube (1);
An outer sleeve (2), wherein one end of the outer sleeve (2) is connected with the fixed core tube (1);
The guide pipe (3), one end of the guide pipe (3) is connected with the fixed core pipe (1), the guide pipe (3) is positioned in the outer sleeve (2), and a sliding space (4) is formed between the outer sleeve (2) and the guide pipe (3);
the movable core tube (5), one end of the movable core tube (5) is arranged in the sliding space (4) in a sliding manner, one end of the movable core tube (5) close to the outer sleeve (2) is provided with a limiting boss (6), one side of the limiting boss (6) close to the outer sleeve (2) is provided with a plurality of sealing grooves, and sealing rings (8) are arranged in the plurality of sealing grooves;
the limiting mechanism (7) is arranged at one end of the outer sleeve (2) far away from the fixed core tube (1), and the limiting mechanism (7) is used for preventing the limiting boss (6) from being separated from the sliding space (4).
2. The multistage-sealed pipeline compensation sealing device according to claim 1, wherein guide grooves are formed in one side, close to the outer sleeve (2), of the limiting boss (6), the guide grooves are multiple, the guide grooves are uniformly distributed on two sides of the sealing groove, and guide belts (9) are arranged in the guide grooves.
3. A multi-stage sealed pipe compensating seal according to claim 1, wherein the limiting mechanism (7) comprises
The welding flange (10) is arranged at one end of the outer sleeve (2) far away from the fixed core tube (1);
The pressing plate flange (11) is sleeved on the movable core pipe (5), and the inner diameter of the pressing plate flange (11) is smaller than the outer diameter of the limiting boss (6);
And the connecting piece (12) is used for connecting the welding flange (10) and the pressing plate flange (11).
4. A multi-stage sealed pipe compensating seal as claimed in claim 3, further comprising
The sealing packing chamber (13) is arranged at one end, far away from the welding flange (10), of the pressing plate flange (11), and the sealing packing chamber (13) is abutted with the outer wall of the movable core tube (5);
And a gasket (14), wherein the gasket (14) is positioned between the welding flange (10) and the pressing plate flange (11).
5. The multi-stage sealed pipe compensating seal of claim 1, further comprising
The sealing element (15) is arranged at one end of the flow guide pipe (3) far away from the fixed core pipe (1), and the sealing element (15) is abutted with the inner wall of the movable core pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322604809.2U CN220957333U (en) | 2023-09-25 | 2023-09-25 | Multistage sealed pipeline compensation sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322604809.2U CN220957333U (en) | 2023-09-25 | 2023-09-25 | Multistage sealed pipeline compensation sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220957333U true CN220957333U (en) | 2024-05-14 |
Family
ID=90973722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322604809.2U Active CN220957333U (en) | 2023-09-25 | 2023-09-25 | Multistage sealed pipeline compensation sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220957333U (en) |
-
2023
- 2023-09-25 CN CN202322604809.2U patent/CN220957333U/en active Active
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