CN205841839U - A kind of from the double ball fixing ball valve of pressure release valve seat - Google Patents
A kind of from the double ball fixing ball valve of pressure release valve seat Download PDFInfo
- Publication number
- CN205841839U CN205841839U CN201620779942.9U CN201620779942U CN205841839U CN 205841839 U CN205841839 U CN 205841839U CN 201620779942 U CN201620779942 U CN 201620779942U CN 205841839 U CN205841839 U CN 205841839U
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- China
- Prior art keywords
- valve
- seat
- valve seat
- pressure release
- fixing
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Abstract
The utility model discloses a kind of from the double ball fixing ball valve of pressure release valve seat, valve passage (9) it is provided with on valve body (1), two spheroids (3) it are provided with on described valve passage (9), it is provided with fixing seat (11) on the described valve passage (9) of the left and right sides of each described spheroid (3), fix described in the two of same described spheroid (3) between seat (11) as the valve pocket (10) communicated with described valve passage (9), the annular groove supporting seat (5) for loading valve seat it is provided with on described fixing seat (11), described valve seat supports and is connected with flexible member (8) between seat (5) and described annular groove bottom, described valve seat supports seat (5) and is provided with valve seat (4) on the contact jaw of described spheroid (3).The one that this utility model provides, from the double ball fixing ball valve of pressure release valve seat, has from pressure release effect, and medium is not discharged into outside valve, will not increase the inflammable and explosive media such as oil and natural gas and reveal harm.
Description
Technical field
This utility model relates to a kind of from the double ball fixing ball valve of pressure release valve seat, and particularly relating to one, to be applicable to long-distance transport pipes defeated
Send system from the double ball fixing ball valve of pressure release valve seat, belong to ball valve technical field.
Background technology
Along with China's economy and the fast development of scientific and technological level, kind and the application of valve are also continuously increased, at fire
The industries such as electricity, oil refining, nuclear power, oil, chemical industry, water resources and hydropower construction, metallurgy suffer from being widely applied.And this change is to valve
Door industry it is also proposed many new requirements, requires more and more higher to valve mass and technology.In long-distance transport pipes induction system
In, the performance of pipeline ball-valve etc. is required quite strict, as required to have fire prevention, antistatic, explosion-proof and zero leakage etc..
Seal in order to ensure ball seat and reach zero leakage, structure working principle according to API6D standard valve seat on market,
Valve mechanism has been done substantial amounts of improvement, but, it is understood that the middle cavity configuration of most valve can finally affect valve
Population structure, volume and weight, be flooded with that various structures is complicated, the valve of bulky heaviness in the market so that valve
Installation application aspect at actual long-distance transport pipes receives serious obstruction, due to limited space, seal unreliable etc., completely
Quickly response with present market demands, save, the requirement of environmental protection inconsistent, cause mass-produced stagnation, in turn result in
Heavy economic losses.
Utility model content
Technical problem to be solved in the utility model is to provide one and has from pressure release effect, and medium is not discharged into valve
Outdoors, will not increase the inflammable and explosive medium such as oil and natural gas reveal harm from the double ball fixing ball valve of pressure release valve seat；Enter one
Step ground, this utility model provides a kind of valve mechanism length compact, saves in-site installation space, energy-conserving and environment-protective from pressure release valve seat
Double ball fixing ball valves.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is:
A kind of from the double ball fixing ball valve of pressure release valve seat, including valve body, valve body is provided with valve passage, described valve passage
On be provided with two spheroids, the described valve passage of the left and right sides of each described spheroid is provided with fixing seat, same institute
State and fix described in the two of spheroid between seat as the valve pocket that communicates with described valve passage, described fixing seat is provided with for loading
Valve seat supports the annular groove of seat, and described valve seat supports and is connected with flexible member, described valve between seat and described annular groove bottom
Be provided with valve seat on the contact jaw of seat supports seat and described spheroid, described valve seat support between outer shroud and the described fixing seat of seat by
Sealing member seals.
It is provided with two valve pockets in valve passage, is provided with spheroid in each valve pocket, two valve seats support seats and are respectively provided with
The left and right sides in spheroid.
Described sealing member includes graphite packing and the first O.
Described flexible member includes spring.
Being positioned at described in the two of the described valve passage port of export and arrival end and fix seat and be valve gap, described valve body leads to valve gap
Cross bolt to link into an integrated entity, by the second seal with O ring between described valve body and valve gap.
The material of described valve body includes forging.
The material of described first O includes general purpose rubber or specific rubber；Described general purpose rubber include VITON, NBR or
HNBR；Described specific rubber includes FPM/FKM.
The material of described second O includes general purpose rubber or specific rubber；Described general purpose rubber include VITON, NBR or
HNBR；Described specific rubber includes FPM/FKM.
Valve seat supports seat and can move left and right.
Medium entrance end is the most consistent with the valve seat clamping support of the port of export, belongs to valve base sealing before valve, and medium can be double
To flowing.The ratio that valve pocket pressure medium supports, at valve seat, out-of-balance force and the spring force produced on seat is at least greater than 1.33,
Can try hard to recommend the valve seat support seat of both sides, valve opening chamber by medium, relief valve cavity pressure, to downstream, reliably ensures in valve
The pressure nonoverload in chamber (i.e. valve pocket).
The beneficial effects of the utility model: the one that this utility model provides from the double ball fixing ball valve of pressure release valve seat, two
Spheroid and the setting of the valve seat supporting with it, make this utility model have dual sealing functions, it is achieved in long-distance transport pipes delivery system
In system, the operating mode to the sealing property strict demand of pipeline ball-valve, when the pressure in valve pocket is more than downstream (the one of medium inflow
End is upstream extremity, and one end of outflow is downstream), pressure automatically downstream end pressure release, medium is not discharged into outside valve, will not
Increase the inflammable and explosive media such as oil and natural gas and reveal the harm caused；The two of same spheroid fix between seat as leading to valve
The setting of the valve pocket that road communicates, makes valve mechanism length of the present utility model short, installs simple and convenient, saving process pipe sky
Between, seal reliable；Valve seat supports the setting sealed between outer shroud and the described fixing seat of seat by sealing member, when medium is passed through valve
Time, the pressure of medium entrance end is more than the pressure of first order valve pocket (valve pocket i.e. closed on medium entrance end), owing to valve seat props up
The static pressure diameter at the first O place on support seat is more than valve-seat diameter, and valve seat supports the compression area of seat more than valve seat
Reversely compression area, pressure medium valve seat support the out-of-balance force that produces on seat plus spring force by valve before the valve seat (first order
Valve pocket includes two valve seats being arranged at the spheroid left and right sides, two valve seats include before the valve of medium entrance end valve seat and away from
The valve rear valve base of medium entrance end) push spheroid to, compress and keep sealing.When before the valve of first order valve pocket, valve base sealing lost efficacy
After, medium enters valve pocket (i.e. first order valve pocket), and because valve rear valve base is identical with valve seat construction before valve, i.e. the valve seat of valve rear valve base props up
The static pressure diameter at the first O place on support seat is more than valve-seat diameter, and pressure medium supports at valve seat and produces not on seat
Equilibrant will overcome spring force, the valve seat of valve rear valve base be supported seat and push away spheroid, and valve pocket pressure automatic leakage is to second level valve.
Owing to second level valve seat is identical with the structure of first order valve seat, medium is equivalent to again reenter valve " entrance point ", the second level
Valve pocket (i.e. with medium entrance end away from valve pocket) valve before valve seat seal again；The material of valve body includes setting of forging
Put, can quick customer in response demand, facilitate required design, production, do not limited by mould.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation that in this utility model, valve seat supports seat.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
As shown in Fig. 1 ~ Fig. 2, a kind of from the double ball fixing ball valve of pressure release valve seat, including: valve body 1, valve gap 2, spheroid 3, valve seat
4, valve seat supports seat 5, graphite packing the 6, first O 7, flexible member 8, and flexible member 8 is spring, described valve body 1 and valve gap 2
Linked into an integrated entity by bolt 13, use the second O 12 to seal, in valve passage 9, be provided with two valve pockets 10, each valve pocket
Being provided with 3, two valve seats support seats 5 of spheroid in 10 and be respectively arranged at the left and right sides of spheroid 3, described valve seat supports and sets on seat 5
Being equipped with graphite packing the 6, first O 7 and valve seat 4, valve seat supports seat 5 and can move left and right, and each valve seat supports seat 5 and uses
Valve seat 4 is compressed by flexible member 8 with spheroid 3, forms initial sealing with spheroid 3, and the valve seat of medium entrance end and the port of export supports
Seat 5 structures are all consistent, belong to valve base sealing before valve, and medium can be with two-way flow.
Fixing seat 11, same described spheroid it is provided with on the described valve passage 9 of the left and right sides of each described spheroid 3
Fixing described in the two of 3 between seat 11 is the valve pocket 10 communicated with described valve passage 9, and described fixing seat 11 is provided with for filling
Entering valve seat and support the annular groove of seat 5, described valve seat supports and is connected with flexible member 8, institute between seat 5 and described annular groove bottom
Stating valve seat support seat 5 and be provided with valve seat 4 on the contact jaw of described spheroid 3, the outer shroud that described valve seat supports seat 5 is fixing with described
Sealed by sealing member between seat 11.Described sealing member includes graphite packing 6 and the first O 7.It is positioned at described valve passage 9 to go out
Fix seat 11 described in the two of mouthful end and arrival end and be valve gap 2.
When medium is passed through valve, the pressure of medium entrance end is more than first order valve pocket (being i.e. positioned at the valve pocket 10 of upstream extremity)
Pressure, support seat 5 owing to valve seat supports the static pressure diameter at the first O 7 place on seat 5 more than valve seat 4 diameter, valve seat
Compression area support the out-of-balance force produced on seat 5 plus bullet more than the reverse compression area of valve seat 4, pressure medium at valve seat
By valve seat before valve, (first order valve pocket includes two valve seats being arranged at the spheroid left and right sides to spring force, and two valve seats are respectively close to being situated between
Valve seat and the valve rear valve base away from medium entrance end before the valve of matter entrance point) push spheroid 3 to, compress and keep sealing.When first
After before step valve, valve base sealing lost efficacy, medium enters valve pocket 10, and because valve rear valve base is identical with valve seat construction before valve, i.e. valve seat supports seat
The static pressure diameter at the first O 7 place on 5 is more than valve seat 4 diameter, and pressure medium supports at valve seat and produces not on seat 5
Equilibrant will overcome spring force, valve seat support seat 5 and push away spheroid, and valve pocket 10 pressure automatic leakage is to second level valve.Due to
Secondary valve seat is identical with the structure of first order valve seat, and medium is equivalent to again reenter valve " entrance point ", second level valve seat
Before valve, valve seat seals again.
Valve body 1 uses forging manufacture, can quick customer in response demand, facilitate required design, production, do not limited by mould.
Valve mechanism length is compact, saves in-site installation space, energy-conserving and environment-protective.
Valve seat supports the static pressure diameter at the first O 7 place on seat 5 more than valve seat 4 diameter.
Valve has from pressure release effect, and medium is not discharged into outside valve, will not increase oil and natural gas etc. inflammable and explosive
Medium reveals the harm caused.
During assembling, first valve seat 4 is pressed into valve seat and supports seat 5 one end, support at valve seat and bottom seat 5, load spring, then fill
Enter graphite packing the 6, first O 7, successively valve seat is supported holder assembly, spheroid 3, loads in valve passage 9, valve gap 2 loads
Second O 12, is fixed on valve body 1 with bolt 13 and tightens, and valve body 1 opposite side repeats same step；Valve is all up time
Pin is opened, is closed counterclockwise；It is all consistent that the valve seat of two valve pocket 10 left and right sides of valve supports seat 5 structure, belongs to valve seat before valve
Sealing, medium can be with two-way flow.
The above is only preferred implementation of the present utility model, it should be pointed out that: for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (7)
1. one kind from the double ball fixing ball valve of pressure release valve seat, it is characterised in that: include valve body (1), valve body (1) is provided with valve and leads to
Road (9), described valve passage (9) is provided with two spheroids (3), the described valve of the left and right sides of each described spheroid (3)
Be provided with fixing seat (11) on passage (9), fix described in the two of same described spheroid (3) between seat (11) for and described valve
The valve pocket (10) that passage (9) communicates, described fixing seat (11) is provided with the annular groove supporting seat (5) for loading valve seat,
Described valve seat supports and is connected with flexible member (8) between seat (5) and described annular groove bottom, and described valve seat supports seat (5) and institute
Stating and be provided with valve seat (4) on the contact jaw of spheroid (3), described valve seat supports between outer shroud and the described fixing seat (11) of seat (5)
Sealed by sealing member.
One the most according to claim 1 is from the double ball fixing ball valve of pressure release valve seat, it is characterised in that: described sealing member includes
Graphite packing (6) and the first O (7).
One the most according to claim 1 is from the double ball fixing ball valve of pressure release valve seat, it is characterised in that: described flexible member
(8) spring is included.
One the most according to claim 1 is from the double ball fixing ball valve of pressure release valve seat, it is characterised in that: it is positioned at described valve and leads to
Fixing seat (11) described in the two of road (9) port of export and arrival end and be valve gap (2), described valve body (1) and valve gap (2) pass through bolt
(13) link into an integrated entity, sealed by the second O (12) between described valve body (1) and valve gap (2).
One the most according to claim 1 is from the double ball fixing ball valve of pressure release valve seat, it is characterised in that: described valve body (1)
Material includes forging.
One the most according to claim 2 is from the double ball fixing ball valve of pressure release valve seat, it is characterised in that: described first O
(7) material includes general purpose rubber or specific rubber；Described general purpose rubber includes VITON, NBR or HNBR；Described specific rubber
Including FPM/FKM.
One the most according to claim 4 is from the double ball fixing ball valve of pressure release valve seat, it is characterised in that: described second O
(12) material includes general purpose rubber or specific rubber；Described general purpose rubber includes VITON, NBR or HNBR；Described specific rubber
Including FPM/FKM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620779942.9U CN205841839U (en) | 2016-07-25 | 2016-07-25 | A kind of from the double ball fixing ball valve of pressure release valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620779942.9U CN205841839U (en) | 2016-07-25 | 2016-07-25 | A kind of from the double ball fixing ball valve of pressure release valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841839U true CN205841839U (en) | 2016-12-28 |
Family
ID=57626086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620779942.9U Active CN205841839U (en) | 2016-07-25 | 2016-07-25 | A kind of from the double ball fixing ball valve of pressure release valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205841839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015624A (en) * | 2016-07-25 | 2016-10-12 | 昆山维萨阀门有限公司 | Self-pressure-release type valve seat and double-ball fixed ball valve |
-
2016
- 2016-07-25 CN CN201620779942.9U patent/CN205841839U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015624A (en) * | 2016-07-25 | 2016-10-12 | 昆山维萨阀门有限公司 | Self-pressure-release type valve seat and double-ball fixed ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jinxi town Jin Lu Kunshan Road, Suzhou City, Jiangsu Province, No. 18 215324 Patentee after: Kunshan Weisa Valve Co., Ltd. Address before: Jinxi town Jin Lu Kunshan Road, Suzhou City, Jiangsu Province, No. 18 215324 Patentee before: Kunshan Weisa Valve Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |