CN205578754U - Compound seal structure of carbide valve body - Google Patents
Compound seal structure of carbide valve body Download PDFInfo
- Publication number
- CN205578754U CN205578754U CN201620280805.0U CN201620280805U CN205578754U CN 205578754 U CN205578754 U CN 205578754U CN 201620280805 U CN201620280805 U CN 201620280805U CN 205578754 U CN205578754 U CN 205578754U
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- Prior art keywords
- hard alloy
- ring
- sealing
- alloy layer
- sealing surface
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- Expired - Fee Related
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 96
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 69
- 239000000956 alloy Substances 0.000 claims abstract description 69
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 11
- 230000002457 bidirectional effect Effects 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 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
- 239000007779 soft material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Abstract
The utility model relates to a compound seal structure of carbide valve body, including disk seat, dish board, clamping ring, sealing washer, the disk seat inboard is equipped with the sealed face of round, should sealed face be equipped with a hard alloy layer, the dish board sets up at the middle part of disk seat, and dish board outer fringe is provided with round ring type seal recess, be equipped with the sealing washer in the sealing washer recess, the sealing washer bottom is equipped with the clamping ring, and the sealing washer outer fringe also is equipped with sealed face, is provided with the 2nd hard alloy layer on the sealed face of this sealing washer. The utility model discloses a hard alloy layer and the 2nd hard alloy layer form the sealed vice effect that reaches zero friction of " confronting the tough with toughnees " structure.
Description
Technical field
This utility model relates to a kind of sealing structure, a kind of hard alloy valve body compound sealing structure.
Background technology
Valve is the control parts in fluid delivery system, has cut-off, regulation, water conservancy diversion, prevents the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.For the valve of fluid control systems, various valves used from simplest stop valve to extremely complex robot control system(RCS), its kind and specification are the most various.Ball valve, butterfly valve, check-valves, gate valve, drain valve etc..Owing to valve can be used for controlling the flowing of all kinds fluids such as sky gas and water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium, so the sealing property of valve is had the highest requirement.
At present, the dish plate of most butterfly valves is provided with seal groove, is provided with sealing ring, is sealed by sealing ring between dish plate and valve body in seal groove.Typically use due to sealing ring the soft materials such as rubber to make, also make somewhat by fully hard material.The sealing ring that existing fully hard material makes typically uses monoblock type all-carbide steel ring or multilamellar all-carbide steel ring compoiste adhering to form.Can avoid in fluid as sealing ring that it is the highest for the outer surface roughness of full hard sealing ring and the requirement of form tolerance with impulse force, processing technique difficulty, so the processing cost of fully hard material is high.
Utility model content
For above-mentioned situation, this utility model provides a kind of hard alloy valve body compound sealing structure, first, use the sealing means that valve seat and sealing ring match, and on the sealing surface inside valve seat, it is provided with the first hard alloy layer, it is provided with the second hard alloy layer on the sealing surface of sealing ring outer rim, is reached the effect of zero friction by the sealing pair of the first hard alloy layer and the second hard alloy layer formation " very stiff and demanding " structure.Second, first hard alloy layer and the second hard alloy layer can be arranged to different hardness, such as the first hard alloy layer on valve seat uses the most vertical No. 6 hard alloys to make, and the second the most vertical No. 21 hard alloys of hard alloy layer employing department of the sealing surface of sealing ring are made, the hard alloy layer of different hardness is used to may insure that resistance to erosion during use.3rd, ring structure contains and flows to collocation structure, flows to regardless of medium, seals same reliable.The design of the application valve is ingenious, bidirectional bearing, and butterfly plate is all in stream pass trend.4th, this utility model structure, for traditional all-carbide sealing ring, employs Hardmetal materials owing to reducing, and Hardmetal materials is expensive, reduces materials'use and causes that the cost of material is low.
To achieve these goals, the technical solution of the utility model is as follows:
Hard alloy valve body compound sealing structure, including valve seat, dish plate, trim ring, sealing ring, a circle sealing surface it is provided with inside described valve seat, this sealing surface is provided with the first hard alloy layer, and described dish plate is arranged on the middle part of valve seat, and dish plate outer rim is provided with a ring shape o-ring groove, it is provided with sealing ring in described o-ring groove, being provided with trim ring bottom described sealing ring, sealing ring outer rim also is provided with sealing surface, and the sealing surface of this sealing ring is provided with the second hard alloy layer.
Further, sealing surface inside described valve seat and the sealing surface of sealing ring outer rim all from the horizontal by the angle of 30 ~ 70 degree, and the sealing surface inside valve seat with the sealing surface of sealing ring outer rim from the horizontal by identical angle.
Further, also including compensating ring, be provided with compensation ring groove in described o-ring groove, described compensation ring is arranged in compensation ring groove, compensates ring and stretches out the part compensating ring groove and sealing ring close contact.The structure compensating ring has flow direction compensation function, flows to regardless of medium, seals same reliable.The design of the application valve is ingenious, bidirectional bearing, and butterfly plate is all in stream pass trend.
Further, described first hard alloy layer and the second hard alloy layer use the hard alloy of different hardness to make.Preferably, the first hard alloy layer on described valve seat uses the most vertical No. 6 hard alloys to make, and the second the most vertical No. 21 hard alloys of hard alloy layer employing department of the sealing surface of sealing ring are made, the hard alloy layer of different hardness is used to may insure that resistance to erosion during use.
Further, the thickness of described first hard alloy layer and the second hard alloy layer is 0.1 ~ 5 millimeter.
The utility model has the advantages that: first, use the sealing means that valve seat and sealing ring match, and on the sealing surface inside valve seat, it is provided with the first hard alloy layer, it is provided with the second hard alloy layer on the sealing surface of sealing ring outer rim, is reached the effect of zero friction by the sealing pair of the first hard alloy layer and the second hard alloy layer formation " very stiff and demanding " structure.Second, first hard alloy layer and the second hard alloy layer can be arranged to different hardness, such as the first hard alloy layer on valve seat uses the most vertical No. 6 hard alloys to make, and the second the most vertical No. 21 hard alloys of hard alloy layer employing department of the sealing surface of sealing ring are made, the hard alloy layer of different hardness is used to may insure that resistance to erosion during use.3rd, ring structure contains and flows to collocation structure, flows to regardless of medium, seals same reliable.The design of the application valve is ingenious, bidirectional bearing, and butterfly plate is all in stream pass trend.4th, this utility model structure, for traditional all-carbide sealing ring, employs Hardmetal materials owing to reducing, and Hardmetal materials is expensive, reduces materials'use and causes that the cost of material is low.5th, this utility model structure can realize zero friction, zero leakage, sealing pair are all-metal, bidirectional bearing, are high-performance on real meaning, can meet the requirement of bad working environments.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In the drawings: 1-valve seat, 2-dish plate, 3-trim ring, 4-sealing ring, 5-the first hard alloy layer, 6-o-ring groove, 7-the second hard alloy layer, 8-compensates ring, and 9-compensates ring groove.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with being specifically illustrating, this utility model is expanded on further.
See Fig. 1, hard alloy valve body compound sealing structure, including valve seat, dish plate, trim ring, sealing ring, being provided with a circle sealing surface inside described valve seat, this sealing surface is provided with the first hard alloy layer, described dish plate is arranged on the middle part of valve seat, dish plate outer rim is provided with a ring shape o-ring groove, is provided with sealing ring, is provided with trim ring bottom described sealing ring in described o-ring groove, sealing ring outer rim also is provided with sealing surface, and the sealing surface of this sealing ring is provided with the second hard alloy layer.
Further, sealing surface inside described valve seat and the sealing surface of sealing ring outer rim all from the horizontal by the angle of 30 ~ 70 degree, and the sealing surface inside valve seat with the sealing surface of sealing ring outer rim from the horizontal by identical angle.
Further, also including compensating ring, be provided with compensation ring groove in described o-ring groove, described compensation ring is arranged in compensation ring groove, compensates ring and stretches out the part compensating ring groove and sealing ring close contact.The structure compensating ring has flow direction compensation function, flows to regardless of medium, seals same reliable.The design of the application valve is ingenious, bidirectional bearing, and butterfly plate is all in stream pass trend.
Further, described first hard alloy layer and the second hard alloy layer use the hard alloy of different hardness to make.Preferably, the first hard alloy layer on described valve seat uses the most vertical No. 6 hard alloys to make, and the second the most vertical No. 21 hard alloys of hard alloy layer employing department of the sealing surface of sealing ring are made, the hard alloy layer of different hardness is used to may insure that resistance to erosion during use.
Further, the thickness of described first hard alloy layer and the second hard alloy layer is 0.1 ~ 5 millimeter.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; simply principle of the present utility model described in above-described embodiment and description; on the premise of without departing from this utility model spirit and scope, this utility model also has various changes and modifications, and these changes and improvements both fall within the range of claimed this utility model.The protection domain that this utility model requires is defined by appending claims and equivalent thereof.
Claims (5)
1. hard alloy valve body compound sealing structure, including valve seat, dish plate, trim ring, sealing ring, a circle sealing surface it is provided with inside described valve seat, this sealing surface is provided with the first hard alloy layer, and described dish plate is arranged on the middle part of valve seat, and dish plate outer rim is provided with a ring shape o-ring groove, it is provided with sealing ring in described o-ring groove, being provided with trim ring bottom described sealing ring, sealing ring outer rim also is provided with sealing surface, and the sealing surface of this sealing ring is provided with the second hard alloy layer.
Hard alloy valve body compound sealing structure the most according to claim 1, it is characterized in that, sealing surface inside described valve seat and the sealing surface of sealing ring outer rim all from the horizontal by the angle of 30 ~ 70 degree, and the sealing surface inside valve seat with the sealing surface of sealing ring outer rim from the horizontal by identical angle.
Hard alloy valve body compound sealing structure the most according to claim 2, it is characterized in that, also include compensating ring, in described o-ring groove, be provided with compensation ring groove, described compensation ring is arranged in compensation ring groove, compensates ring and stretches out the part compensating ring groove and sealing ring close contact.
4. according to the hard alloy valve body compound sealing structure described in any one of claims 1 to 3, it is characterised in that described first hard alloy layer and the second hard alloy layer use the hard alloy of different hardness to make.
5. according to the hard alloy valve body compound sealing structure described in any one of claims 1 to 3, it is characterised in that the thickness of described first hard alloy layer and the second hard alloy layer is 0.1 ~ 5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620280805.0U CN205578754U (en) | 2016-04-07 | 2016-04-07 | Compound seal structure of carbide valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620280805.0U CN205578754U (en) | 2016-04-07 | 2016-04-07 | Compound seal structure of carbide valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205578754U true CN205578754U (en) | 2016-09-14 |
Family
ID=56865087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620280805.0U Expired - Fee Related CN205578754U (en) | 2016-04-07 | 2016-04-07 | Compound seal structure of carbide valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205578754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630920A (en) * | 2020-12-07 | 2021-04-09 | 河北汉光重工有限责任公司 | Wide-temperature self-adaptive optical window |
-
2016
- 2016-04-07 CN CN201620280805.0U patent/CN205578754U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630920A (en) * | 2020-12-07 | 2021-04-09 | 河北汉光重工有限责任公司 | Wide-temperature self-adaptive optical window |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 |