CN219655248U - Special-shaped middle cavity sealing ring for soft sealing gate valve - Google Patents
Special-shaped middle cavity sealing ring for soft sealing gate valve Download PDFInfo
- Publication number
- CN219655248U CN219655248U CN202223417055.1U CN202223417055U CN219655248U CN 219655248 U CN219655248 U CN 219655248U CN 202223417055 U CN202223417055 U CN 202223417055U CN 219655248 U CN219655248 U CN 219655248U
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- sealing ring
- shaped
- middle cavity
- sealing
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- 238000007789 sealing Methods 0.000 title claims abstract description 85
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Sliding Valves (AREA)
Abstract
The utility model belongs to the sealing washer, concretely relates to special-shaped cavity sealing washer for soft sealing gate valve. A special-shaped middle cavity sealing ring for a soft sealing gate valve is characterized in that the shape of the sealing ring is matched with the shape of a device to be sealed, and the section of the sealing ring is special-shaped. Compared with the prior art, the novel beneficial effect has: the special-shaped middle cavity sealing ring completely fits the valve cover casting groove, the special-shaped design perfectly fits the shape of the casting groove, the casting deviation generated by the casting draft angle of the valve cover mounting groove is contained, the special-shaped sealing ring is prevented from being excessively compressed between the valve body and the valve cover, the forced sealing is formed, the structure is simple, the torsion is not easy to happen, the installation is convenient, and zero leakage of the middle cavity can be realized.
Description
Technical Field
The utility model belongs to the sealing washer, concretely relates to special-shaped cavity sealing washer for soft sealing gate valve.
Background
The soft sealing sluice valve is also called an elastic seat sealing sluice valve, and is a valve used for cutting off and passing pipeline media on pipelines of hydraulic and hydroelectric engineering, municipal water supply and the like. The soft sealing gate valve consists of a valve body, a valve cover, a gate plate, a gland, a valve rod, a middle cavity sealing ring, an operating mechanism and bolts. The middle cavity sealing ring is the most critical part for ensuring the sealing between the valve body and the valve cover, and the middle cavity sealing ring groove is generally arranged at the bottom of the valve cover and is directly cast and formed.
Along with the wide application of the soft sealing gate valve, the problem of medium cavity leakage always puzzles each manufacturer, and as the medium cavity sealing ring groove is directly formed by casting, the groove size cannot be accurately controlled, so that the occurrence of medium cavity water leakage is caused, and a special medium cavity sealing ring is needed to solve the problem of medium cavity leakage of the soft sealing gate valve.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art and providing a special-shaped middle cavity sealing ring for a soft sealing gate valve.
The specific technical scheme adopted by the utility model is as follows: a special-shaped middle cavity sealing ring for a soft sealing gate valve is characterized in that the shape of the sealing ring is matched with the shape of a device to be sealed, and the section of the sealing ring is special-shaped.
The special-shaped middle cavity sealing ring for the soft sealing gate valve is characterized in that the cross section of the sealing ring is trapezoid.
The special-shaped middle cavity sealing ring for the soft sealing gate valve is characterized in that the section of the special-shaped middle cavity sealing ring is matched with the section of the valve cover mounting groove, and spraying allowance is arranged on two sides of the special-shaped middle cavity sealing ring.
The special-shaped middle cavity sealing ring for the soft sealing gate valve is provided with the compression amount at the bottom after being arranged in the valve cover mounting groove.
Compared with the prior art, the novel beneficial effect has: the special-shaped middle cavity sealing ring completely fits the valve cover casting groove, the special-shaped design perfectly fits the shape of the casting groove, the casting deviation generated by the casting draft angle of the valve cover mounting groove is contained, the special-shaped sealing ring is prevented from being excessively compressed between the valve body and the valve cover, the forced sealing is formed, the structure is simple, the torsion is not easy to happen, the installation is convenient, and zero leakage of the middle cavity can be realized.
Drawings
FIG. 1-a is a sectional enlarged view of AA in FIG. 1-a of a special-shaped middle cavity sealing ring for a soft sealing gate valve in accordance with the present utility model
FIG. 2 shows the state of the special-shaped seal ring when the bolt is not locked
FIG. 3 shows the state of the profiled seal after the bolt is locked
In the drawings, (1) a valve cover; (2) a special-shaped middle cavity sealing ring; (3) a valve body; (4) bolt
Detailed Description
The utility model is further illustrated and described below with reference to the drawings and detailed description.
As shown in fig. 1-a and 1-b, the middle cavity sealing ring is specially designed, the section is trapezoid, and the section and the whole shape are matched with the valve cover groove.
As shown in fig. 2, the special-shaped middle cavity sealing ring is arranged between the valve cover and the valve body, when the bolt is unlocked, one part of the special-shaped middle cavity sealing ring falls into the valve cover groove, certain spraying allowance is reserved on two sides of the special-shaped middle cavity sealing ring, the falling part is in fit with the shape of the mounting groove, the set compression allowance is reserved at the bottom of the special-shaped middle cavity sealing ring, excessive compression of rubber is effectively avoided, and meanwhile, the necessary specific pressure of the middle cavity sealing is formed.
As shown in fig. 3, after the bolt is locked, the special-shaped sealing ring is extruded, and at the moment, the special-shaped sealing ring forms forced sealing between the valve body and the valve cover, so that the sealing performance of the middle cavity is ensured.
A special-shaped middle cavity sealing ring is used for sealing a soft sealing gate valve body and a valve cover, the valve body and the valve cover are connected through screws, the special-shaped sealing ring forms forced sealing in the middle, and the special-shaped middle cavity sealing ring is safe and reliable, is convenient to demould due to the trapezoid cross section, and is very suitable for middle cavity sealing of the soft sealing gate valve.
Realize the technical characteristics of this novel:
1. fitting casting forming design
The special-shaped middle cavity sealing ring is ingenious in design, completely fits the valve cover mounting groove, and completely meets the draft angle required by casting due to the special-shaped section design.
2. Extensive versatility
The special-shaped middle cavity sealing ring is suitable for valves and containers with similar plane sealing structures, can realize reliable sealing by changing the cross-sectional area and the compression amount of the sealing piece according to the inner cavity pressure and the size of the sealing piece, and has wide universality.
3. Simple structure and convenient installation
The special-shaped middle cavity sealing ring is designed, has a very simple structure, is convenient to install, is safe and reliable, and can be locked with the valve cover by bolts by only putting the special-shaped middle cavity sealing ring into the valve cover sealing ring groove during installation.
Claims (1)
1. The utility model provides a soft sealing gate valve is with special-shaped middle chamber sealing washer which characterized in that: the shape of the sealing ring is matched with the shape of the device to be sealed, and the section of the sealing ring is special-shaped;
the section of the sealing ring is trapezoid;
the section of the special-shaped middle cavity sealing ring is matched with the section of the valve cover mounting groove, and the two sides of the special-shaped middle cavity sealing ring are provided with spraying allowance;
the bottom of the special-shaped middle cavity sealing ring is provided with a compression amount after the special-shaped middle cavity sealing ring is arranged in the valve cover mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223417055.1U CN219655248U (en) | 2022-12-20 | 2022-12-20 | Special-shaped middle cavity sealing ring for soft sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223417055.1U CN219655248U (en) | 2022-12-20 | 2022-12-20 | Special-shaped middle cavity sealing ring for soft sealing gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219655248U true CN219655248U (en) | 2023-09-08 |
Family
ID=87876201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223417055.1U Active CN219655248U (en) | 2022-12-20 | 2022-12-20 | Special-shaped middle cavity sealing ring for soft sealing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219655248U (en) |
-
2022
- 2022-12-20 CN CN202223417055.1U patent/CN219655248U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |