CN220770311U - Valve rod floating sealing device - Google Patents
Valve rod floating sealing device Download PDFInfo
- Publication number
- CN220770311U CN220770311U CN202322360503.7U CN202322360503U CN220770311U CN 220770311 U CN220770311 U CN 220770311U CN 202322360503 U CN202322360503 U CN 202322360503U CN 220770311 U CN220770311 U CN 220770311U
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- 238000007789 sealing Methods 0.000 title claims abstract description 182
- 239000000945 filler Substances 0.000 claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 238000012856 packing Methods 0.000 claims description 19
- 210000004907 gland Anatomy 0.000 claims description 17
- 239000002184 metal Substances 0.000 description 4
- 101100441413 Caenorhabditis elegans cup-15 gene Proteins 0.000 description 2
- 241000446313 Lamella Species 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model relates to the technical field of sealing devices, and provides a valve rod floating sealing device which comprises two half sealing seats, wherein the two half sealing seats are symmetrically connected, two half sealing covers are symmetrically connected, the two half sealing covers are arranged on the half sealing seats, a sealing area is formed between the two half sealing seats and the two half sealing covers, the sealing area is used for penetrating a valve rod, and a sealing filler component is arranged in the sealing area and is positioned between the half sealing covers and the half sealing seats and used for sealing and connecting the half sealing covers, the half sealing seats and the valve rod. Through above-mentioned technical scheme, the problem of unable online change after having solved the sealing member wearing and tearing among the prior art.
Description
Technical Field
The utility model relates to the technical field of sealing devices, in particular to a valve rod floating sealing device.
Background
Some metallurgical valves such as hot blast valve, shutoff valve that the valve plate goes up and down vertically need the valve rod to offset certain distance along the axis after these valves are closed to the tight laminating of valve plate and disk seat on the valve rod guarantees the leakproofness, and above-mentioned valve rod sealing device is floating structure.
However, most of the conventional floating seal structures of the valve are as follows: the packing box is installed in the valve deck sealing seat of the valve, the inside is the multilayer metal sealing ring, go up the packing box and press the multilayer metal sealing ring in the packing box, the gland presses last packing seal in last packing box, realize floating seal, the shortcoming of this structure is that the sealing member can't be changed on line after wearing and tearing, can only be with the valve from the whole maintenance change of after detaching of pipeline, it takes time and labor to take.
Disclosure of Invention
The utility model provides a valve rod floating sealing device, which solves the problem that a sealing element in the related art cannot be replaced on line after being worn.
The technical scheme of the utility model is as follows:
a valve stem floating seal device comprises
Two semi-sealing seats which are symmetrically connected,
the two half sealing covers are symmetrically connected and arranged, the half sealing covers are arranged on the half sealing seat, a sealing area is formed between the two half sealing seats and the two half sealing covers, the sealing area is used for penetrating through the valve rod,
and the sealing filler assembly is arranged in the sealing area, is positioned between the half sealing cover and the half sealing seat and is used for sealing and connecting the half sealing cover, the half sealing seat and the valve rod.
As a further technical scheme, the sealing filler assembly comprises
The annular filling bin is arranged in the sealing area and is positioned between the half sealing cover and the half sealing seat,
the sealing filler piece is arranged in the annular filler bin,
and the gland is arranged at the top of the sealing packing piece and is abutted with the annular packing bin.
As a further technical proposal, also comprises
The bottom of the annular filling bin is abutted with the semi-sealing seat through the sealing ring, and the top of the gland is abutted with the semi-sealing cover.
As a further technical proposal, also comprises
The sealing rings are arranged on the semi-sealing seat and used for penetrating through the valve rod.
As a further technical scheme, the sealing ring is provided with an annular groove, and further comprises
And the elastic piece is arranged in the annular groove.
As a further technical scheme, the sealing ring comprises
The annular petals are sequentially connected end to end.
As a further technical scheme, the two half sealing covers and the two half sealing seats are symmetrically connected through bolts and taper pins.
As a further technical scheme, the semi-sealing cover is arranged on the semi-sealing seat in a threaded manner.
As a further technical proposal, also comprises
And the oil cup is arranged on the semi-sealing cover.
The working principle and the beneficial effects of the utility model are as follows:
in the utility model, a sealing element in the traditional valve floating sealing structure cannot be replaced on line after being worn, and only the valve can be detached from a pipeline integrally and then maintained and replaced, thus the labor and time are wasted, and the valve rod floating sealing device is designed for solving the problems.
In the use process, if the sealing element is worn and needs to be replaced, the two half sealing seats and the two half sealing covers are arranged, and after the connecting bolts and the taper pins are respectively detached, all sealing rings, sealing rings and the like can be detached and replaced, and the operation can be completed on line without detaching a valve from a pipeline, so that the working efficiency is greatly improved; under normal working conditions, the valve rod penetrates through a sealing area formed by the two half sealing seats and the two half sealing covers, the whole sealing performance is ensured by the sealing filler component, the half sealing covers and the half sealing seats are in a threaded connection mode, the tightness of the gland is regulated by threaded connection,
the sealing packing assembly consists of a gland, a sealing packing piece and an annular packing bin, the annular design is to avoid the position of a valve rod penetrating through the gland, the sealing packing piece is installed in the annular packing bin by the gland, the sealing performance is further improved by a sealing ring at the bottom of the annular packing bin, and the top of the gland is sealed by abutting.
Further, establish the sealing ring additional to with the setting of elastic component in the ring channel of sealing ring, make sealing ring and valve rod hug tightly through the elastic component, and for convenient earlier stage production installation, set up the sealing ring and constitute by four the same size ring lamella of lamella, the sealing ring material can be the metal simultaneously, and the setting of oil cup is for the convenience to pouring into sealing oil therein, guarantees sealing performance.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of a first view of a floating seal arrangement for a valve stem according to the present utility model;
FIG. 2 is a cross-sectional view of a valve stem floating seal of the present utility model;
FIG. 3 is a schematic view of a second view of a floating seal arrangement for a valve stem according to the present utility model;
FIG. 4 is a schematic view of a semi-seal seat according to the present utility model;
FIG. 5 is a schematic view of a semi-seal cap according to the present utility model;
in the figure: 1. the sealing device comprises a semi-sealing seat 2, a semi-sealing cover 3, a sealing area 4, a sealing filler assembly 5, an annular filler bin 6, a sealing filler piece 7, a gland, 8, a sealing ring 9, a sealing ring 10, an annular groove 11, an elastic piece 12, an annular flap 13, a bolt 14, a taper pin 15 and an oil cup.
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. 1-5, the present embodiment provides a valve stem floating seal device, including
Two semi-seal seats 1, the two semi-seal seats 1 are symmetrically connected,
the two half sealing covers 2 are symmetrically connected, the half sealing covers 2 are arranged on the half sealing seat 1, a sealing area 3 is formed between the two half sealing seats 1 and the two half sealing covers 2, the sealing area 3 is used for penetrating through a valve rod,
and the sealing filler assembly 4 is arranged in the sealing area 3, is positioned between the half sealing cover 2 and the half sealing seat 1 and is used for sealing and connecting the half sealing cover 2, the half sealing seat 1 and the valve rod.
Further, the packing assembly 4 includes
An annular filler bin 5 arranged in the sealing area 3 and positioned between the semi-sealing cover 2 and the semi-sealing seat 1,
a sealing filler element 6, which is arranged in the annular filler bin 5,
and the gland 7 is arranged at the top of the sealing packing piece 6 and is abutted with the annular packing bin 5.
Further, also include
The sealing ring 8, the annular packing bin 5 bottom through sealing ring 8 with semi-seal seat 1 butt, gland 7 top with semi-seal lid 2 butt.
Further, also include
The sealing rings 9 are arranged on the semi-sealing seat 1, and the sealing rings 9 are used for penetrating through the valve rod.
Further, the sealing ring 9 has an annular groove 10, and further comprises
An elastic member 11 is provided in the annular groove 10.
Further, the seal ring 9 includes
The annular petals 12 are sequentially connected end to end.
Further, the two half sealing covers 2 and the two half sealing seats 1 are symmetrically connected through bolts 13 and taper pins 14.
Further, the half sealing cover 2 is arranged on the half sealing seat 1 in a threaded manner.
Further, also include
An oil cup 15 is arranged on the half sealing cover 2.
In this embodiment, in the conventional valve floating seal structure, the seal member cannot be replaced on line after being worn, and only the valve can be detached from the pipeline integrally and then repaired and replaced, which is labor-and time-consuming.
In the use process, if the sealing piece is worn and needs to be replaced, the two half sealing seats 1 and the two half sealing covers 2 are arranged, and after the connecting bolts 13 and the taper pins 14 are respectively detached, all the sealing rings 9, 8 and the like can be detached and replaced, so that the operation can be completed on line without detaching a valve from a pipeline, and the working efficiency is greatly improved; under normal working conditions, the valve rod penetrates through a sealing area 3 formed by the two half sealing seats 1 and the two half sealing covers 2, the whole sealing performance is ensured by the sealing filler component 4, the half sealing covers 2 and the half sealing seats 1 are in a threaded connection mode, the tightness of the gland 7 is adjusted by threaded connection,
the sealing filler assembly 4 is composed of a gland 7, a sealing filler piece 6 and an annular filler bin 5, the annular design is to avoid the position of a valve rod penetrating through, the gland 7 is used for installing the sealing filler piece 6 in the annular filler bin 5, sealing performance is further improved through a sealing ring 8 at the bottom of the annular filler bin 5, and sealing is guaranteed at the top of the gland 7 through abutting.
Further, the sealing ring 9 is additionally arranged, the elastic piece 11 is arranged in the annular groove 10 of the sealing ring 9, the sealing ring 9 and the valve rod are tightly held by the elastic piece 11, the sealing ring 9 is formed by four ring flaps 12 with the same size for convenient early production and installation, meanwhile, the sealing ring 9 can be made of metal, and the oil cup 15 is arranged for convenient injection of sealing oil into the sealing ring, so that the sealing performance is ensured.
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 (7)
1. A valve stem floating seal comprising
Two semi-seal seats (1), the two semi-seal seats (1) are symmetrically connected,
the two half sealing covers (2), the two half sealing covers (2) are symmetrically connected and arranged, the half sealing covers (2) are arranged on the half sealing seat (1), a sealing area (3) is formed between the two half sealing seats (1) and the two half sealing covers (2), the sealing area (3) is used for penetrating through a valve rod,
the sealing filler assembly (4) is arranged in the sealing area (3) and is positioned between the half sealing cover (2) and the half sealing seat (1) and used for sealing and connecting the half sealing cover (2), the half sealing seat (1) and the valve rod,
the sealing packing assembly (4) comprises
An annular filling bin (5) which is arranged in the sealing area (3) and is positioned between the half sealing cover (2) and the half sealing seat (1),
a sealing filler (6) arranged in the annular filler bin (5),
a gland (7) arranged at the top of the sealing filler piece (6) and abutted with the annular filler bin (5),
and also comprises
The sealing ring (8), annular packing bin (5) bottom through sealing ring (8) with semi-seal seat (1) butt, gland (7) top with semi-seal lid (2) butt.
2. A valve stem floating seal as defined in claim 1, further comprising
The sealing rings (9) are arranged on the semi-sealing seat (1), and the sealing rings (9) are used for penetrating through the valve rod.
3. A valve stem floating seal as claimed in claim 2, wherein said sealing ring (9) has an annular groove (10), further comprising
And an elastic member (11) disposed in the annular groove (10).
4. A valve stem floating seal as claimed in claim 2, wherein said sealing ring (9) comprises
The annular valves (12) are sequentially connected end to end.
5. A valve stem floating seal as claimed in claim 1, wherein both said semi-seal caps (2) and both said semi-seal seats (1) are symmetrically connected by bolts (13) and taper pins (14).
6. A valve stem floating seal as claimed in claim 1, wherein said semi-seal cap (2) is threadedly disposed on said semi-seal seat (1).
7. A valve stem floating seal as defined in claim 1, further comprising
And the oil cup (15) is arranged on the half sealing cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322360503.7U CN220770311U (en) | 2023-08-31 | 2023-08-31 | Valve rod floating sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322360503.7U CN220770311U (en) | 2023-08-31 | 2023-08-31 | Valve rod floating sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220770311U true CN220770311U (en) | 2024-04-12 |
Family
ID=90602129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322360503.7U Active CN220770311U (en) | 2023-08-31 | 2023-08-31 | Valve rod floating sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220770311U (en) |
-
2023
- 2023-08-31 CN CN202322360503.7U patent/CN220770311U/en active Active
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| GR01 | Patent grant | ||
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