CN202327196U - Hard seal ball valve - Google Patents
Hard seal ball valve Download PDFInfo
- Publication number
- CN202327196U CN202327196U CN2011204798027U CN201120479802U CN202327196U CN 202327196 U CN202327196 U CN 202327196U CN 2011204798027 U CN2011204798027 U CN 2011204798027U CN 201120479802 U CN201120479802 U CN 201120479802U CN 202327196 U CN202327196 U CN 202327196U
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- CN
- China
- Prior art keywords
- valve
- hard seal
- seal ball
- ball valve
- valve body
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a hard seal ball valve, which comprises a valve body, a metal valve base arranged on the valve body, and a spherical valve core matched with the valve base in a sealing manner, wherein the valve base is of an elastic bell mouth shape with one large end and one small end, a channel in the valve body is smaller relative to a cavity, a footstep structure is formed between the channel and the cavity, the large end of the bell mouth supports against a nook of the footstep structure and is in direct sealing matching with the valve body, and the small end of the bell mouth is in direct sealing matching with the valve core. According to the hard seal ball valve provided by the utility model, the elastic metal valve base in direct sealing with the valve body is provided and is in sealing matching with the valve core by using the elasticity of the valve base, thus the structure is simplified; and the hard seal ball valve can be adaptive to a high temperature or superhigh temperature service environment.
Description
Technical field
The utility model relates to a kind of ball valve, specifically about a kind of metal hard-sealing ball valve.
Background technique
Common metal hard-sealing ball valve; Mainly form by parts such as spheroid spool, valve seat, valve body, valve rods; Excessive too fast and bloated dead because of difference variation down in working order in order to prevent spheroid and valve seat, when containing granular solids in the liquid wherein, the stuck situation of tensioner takes place more easily especially; Generally all be employed in flexure spring and seal ring are set between valve seat and the valve body; Utilize the elastic force of spring to be used for reaching being sealed and matched of valve seat and spool, but because the restriction of spring and seal ring heat resistance makes the metal hard-sealing ball valve of this structure can not be suitable for HTHP and supercritical behavior use; Said structure is comparatively complicated in addition, the higher and easy damage of installation cost.
The model utility content
The problem that the utility model will solve is to improve the complex structure of ball valve in the background technique and can not be adapted to high temperature and the problem of superhigh temperature operating mode use.
In order to overcome the above problems; In order to overcome the above problems; The utility model provides a kind of hard seal ball valve, comprise valve body, be installed on valve body metal seat valve, make the spherical valve core be sealed and matched with valve seat, said valve seat is the horn mouth shape that rubber-like one end own is big, an end is little; Passage in the said valve body is less with respect to cavity; Form ledge structure between passage and the cavity, said bell-mouthed big opening end be butted on mutually ledge structure nook and and valve body between directly be sealed and matched, said bell-mouthed osculum end can directly be sealed and matched with spherical valve core.
Said bell-mouthed big opening end is provided with two faces that fit tightly in the re-entrant angle both sides.
Described re-entrant angle is the right angle.
Be provided with arc-shaped bend between the big opening end of said valve seat and the osculum end.
Be straight inclined-plane between the big opening end of said valve seat and the osculum end.
The outlet of described spool and the equal correspondence that enters the mouth are provided with the elastic seat of said toroidal.
The face that is in contact with one another of said valve seat and valve body and spool is alloy welding deposit.
Said alloy welding deposit is Stellite alloy (cobalt base alloy) built-up welding.
The hard seal ball valve of the utility model through being provided with and the direct elastic metallic valve seat of sealing of valve body, utilizes self elasticity of valve seat and spool to be sealed and matched, and simplifies the structure, and can be adapted to the Environmental Conditions of high temperature even superhigh temperature.
Description of drawings
Accompanying drawing 1 is the hard seal ball valve schematic representation of the utility model
Accompanying drawing 2 is local enlarged diagrams of Fig. 1
1 is valve body; 2 is the valve body overlaying surface; 3 is the valve seat big opening end; 4 is valve seat; 5 is spherical valve core; 6 is valve seat osculum end.
Embodiment
Below in conjunction with accompanying drawing a kind of hard seal ball valve of the utility model is described further.
As shown in fig. 1; The hard seal ball valve of present embodiment; Comprise valve body 1, be installed on valve body 1 metal seat valve 4, make the spherical spherical valve core 55 that is sealed and matched with valve seat 4; Valve seat 4 is the horn mouth shape that rubber-like one end own is big, an end is little, and the passage in the valve body 1 is less with respect to cavity, forms ledge structure between passage and the cavity; Bell-mouthed big opening end 3 be butted on mutually ledge structure nook and and valve body 1 between directly be sealed and matched, bell-mouthed osculum end 6 can directly be sealed and matched with spherical valve core 5.Said bell-mouthed big opening end 3 makes its end face smooth smooth through grinding, directly be installed on valve body 1 and and valve body 1 between be sealed and matched, be interference fit between said bell-mouthed osculum end 6 and the spherical spool; Because said bell-mouthed big opening end 3 is butted on valve body 1 mutually; Can't move, thus can only be through the resiliently deformable of valve seat 4 itself, reach with spool between cooperate; Just because of the resiliently deformable of valve seat 4 makes closely to be sealed and matched between valve seat 4 and the spherical valve core 5.It is simple in structure, and is easy to assembly.
In addition, in the present embodiment, said bell-mouthed big opening end 3 is provided with two faces that fit tightly in the re-entrant angle both sides.Described re-entrant angle is the right angle.Be provided with arc-shaped bend between the big opening end 3 of said valve seat 4 and the osculum end 6.Making that the performance of its resiliently deformable is better, certainly, also can be to be straight inclined-plane between big opening end 3 and the osculum end 6 of said valve seat 4, equally also can reach the effect of valve seat 4 resiliently deformables.The outlet of described spherical valve core 5 and the equal correspondence that enters the mouth are provided with the elastic seat 4 of said toroidal.Also can be according to the different processes situation, use the elastic seat 4 of the toroidal of the utility model at an end of spool, and other valve seat 4 is used in the other end.
As shown in Figure 2, said valve seat 4 is alloy welding deposit with the face that is in contact with one another of valve body 1 and spherical valve core 5, and promptly the big opening end 3 of valve seat 4, osculum end 6 and valve body overlaying surface 2 are alloy welding deposit, and wear-resisting property can be better after the built-up welding.In the present embodiment, said alloy welding deposit is Stellite alloy (cobalt base alloy) built-up welding.
The hard seal ball valve of the utility model through being provided with and the direct elastic metallic valve seat 4 of sealing of valve body 1, utilizes self elasticity of valve seat 4 and spool to be sealed and matched, and simplifies the structure, and can be adapted to HTHP even postcritical Environmental Conditions.
The utility model is not limited to above embodiment and conversion.
Claims (8)
1. hard seal ball valve; Comprise valve body (1), be installed on valve body (1) metal seat valve (4), make the spherical valve core (5) be sealed and matched with valve seat (4); It is characterized in that: said valve seat (4) is the horn mouth shape that rubber-like one end own is big, an end is little; Passage in the said valve body (1) is less with respect to cavity; Form ledge structure between passage and the cavity, said bell-mouthed big opening end (3) be butted on mutually ledge structure nook and and valve body (1) between directly be sealed and matched, said bell-mouthed osculum end (6) can directly be sealed and matched with spherical valve core (5).
2. a kind of hard seal ball valve according to claim 1 is characterized in that: said bell-mouthed big opening end (3) is provided with two faces that fit tightly in the re-entrant angle both sides.
3. a kind of hard seal ball valve according to claim 1 is characterized in that: described re-entrant angle is the right angle.
4. a kind of hard seal ball valve according to claim 1 is characterized in that: be provided with arc-shaped bend between the big opening end (3) of said valve seat (4) and the osculum end (6).
5. a kind of hard seal ball valve according to claim 1 is characterized in that: be straight inclined-plane between the big opening end (3) of said valve seat (4) and the osculum end (6).
6. a kind of hard seal ball valve according to claim 1 is characterized in that: the outlet of described spherical valve core (5) and the equal correspondence that enters the mouth are provided with the elastic seat (4) of said toroidal.
7. according to each described a kind of hard seal ball valve of claim 1 to 6, it is characterized in that: said valve seat (4) is alloy welding deposit with the face that is in contact with one another of valve body (1) and spherical valve core (5).
8. a kind of hard seal ball valve according to claim 7 is characterized in that: said alloy welding deposit is Stellite alloy (cobalt base alloy) built-up welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204798027U CN202327196U (en) | 2011-11-27 | 2011-11-27 | Hard seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204798027U CN202327196U (en) | 2011-11-27 | 2011-11-27 | Hard seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327196U true CN202327196U (en) | 2012-07-11 |
Family
ID=46439175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204798027U Expired - Fee Related CN202327196U (en) | 2011-11-27 | 2011-11-27 | Hard seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327196U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518825A (en) * | 2011-11-27 | 2012-06-27 | 浙江欧斯特泵阀有限公司 | Hard sealing ball valve |
| CN103383009A (en) * | 2013-07-05 | 2013-11-06 | 开维喜阀门集团有限公司 | Pollution-free metal membrane sealed ball valve |
-
2011
- 2011-11-27 CN CN2011204798027U patent/CN202327196U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518825A (en) * | 2011-11-27 | 2012-06-27 | 浙江欧斯特泵阀有限公司 | Hard sealing ball valve |
| CN103383009A (en) * | 2013-07-05 | 2013-11-06 | 开维喜阀门集团有限公司 | Pollution-free metal membrane sealed ball valve |
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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 |
Granted publication date: 20120711 Termination date: 20181127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |