CN208997452U - Spool valve seat combination part with annular groove buck configuration - Google Patents
Spool valve seat combination part with annular groove buck configuration Download PDFInfo
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- CN208997452U CN208997452U CN201821373897.2U CN201821373897U CN208997452U CN 208997452 U CN208997452 U CN 208997452U CN 201821373897 U CN201821373897 U CN 201821373897U CN 208997452 U CN208997452 U CN 208997452U
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- valve seat
- annular groove
- spool
- wall
- combination part
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Abstract
The utility model relates to have the spool valve seat combination part of annular groove buck configuration, including the valve seat with circle ring inner wall face and the spool being in the form of a column, the valve seat contacts with seal spool and forms sealing surface structure, it is characterized in that, being machined with the throttling annular groove that a plurality of section is square along center axis thereof direction on the inner wall of valve seat.Compared with prior art, velocity of medium improves the anti-cavitation performance of valve when the utility model can be opened by control valve seat, and sealing surface is more effectively protected to improve the service life of valve.
Description
Technical field
The utility model belongs to valve field, is related to a kind of spool valve seat combination part with annular groove buck configuration.
Background technique
Valve has a wide range of applications in industrial circles such as the energy, petrochemical industries, plays control medium in systems
Flow, flow velocity, pressure and other parameters key player, the superiority and inferiority of valve performance directly affects the working condition and safety of system pipeline
Property.Many valves operate under the operating condition that temperature is high, pressure difference is big, and long service easily causes sealing surface blow loss, and then leads
Valve seal timeliness is caused, leakage is caused.Valve sealing face damage is largely because to be acted on by cavitation, rather than simple
Medium wash away.When valve opening degree is smaller, since circulation area is minimum, cause velocity of medium too fast, media interior pressure
Power sharply declines, and when pressure is lower than pressure for vaporization, bubble occurs in media interior, when pressure increases bubbles burst again, is formed
Partial high pressure, this is extremely serious to the blow loss of valve sealing face, which is cavitation phenomenons.
Chinese patent ZL201520851076.5 discloses a kind of spool with improved groove structure, including spool,
The spool is made of forward and backward two sections of spools, and posterior segment spool is cylindrical structure, and leading portion spool is that outer diameter is gradually smaller
Conical structure, which is characterized in that the annular relief groove of several throttlings is provided on the circular conical surface of the leading portion spool.Though the patent
So equally there is annular groove buck configuration, but be arranged on spool when its annular groove buck configuration, will increase and spool is washed away,
Influence sealing effect.
Utility model content
The purpose of this utility model is exactly to provide a kind of with annular groove to overcome the problems of the above-mentioned prior art
The spool valve seat combination part of buck configuration.
The purpose of this utility model can be achieved through the following technical solutions:
Spool valve seat combination part with annular groove buck configuration, including the valve seat with circle ring inner wall face and the valve being in the form of a column
Core, the valve seat contact with seal spool and are formed sealing surface structure, add on the inner wall of valve seat along center axis thereof direction
The throttling annular groove that work has a plurality of section to be square.
Further, the spool is made of two sections of cylinders, and in two sections of cylinders, one section be relatively large in diameter is located at valve
Seat top, lesser one section of diameter matches sealing in gap with the circle ring inner wall face of the valve seat.
Further, the transition portion among two sections of cylinders of the spool forms the sealing surface A that outer diameter is gradually reduced,
The tip inside of the valve seat is machined with the sealing surface B that sealing surface structure is matched and formed with the sealing surface A.
Further, two adjacent sections stream annular groove is separated by one layer with the integrally formed annular inner wall of valve seat, in every layer of annular
Wall is made of the equally spaced arc section of multistage, is formed one between adjacent two sections of arc sections and is shunted gap, adjacent two layers annular inner wall
On shunting gap misplace arrangement.
Further, every shunting gap is placed exactly in its adjacent layer annular inner wall along the projection of valve seat central axis
In the symmetrical center line of arc section.
Further, successively staggered flow-stopping plate is disposed with up and down between the upper and lower surface of adjacent two layers annular inner wall.
Still more preferably, the height of the flow-stopping plate is less than the height of throttling annular groove, and is greater than the height of throttling annular groove
The half of degree.
Compared with prior art, the utility model has the advantage that
(1) compared with the reducing pressure by regulating flow slot for arranging trapezium structure on spool with existing, the utility model passes through on valve seat
Arrange rectangular throttling channel, in this way, not only reduce the erosion to spool, in addition, square structure is for trapezium structure,
Antihypertensive effect is more significant.
(2) annular inner wall of composition throttling annular groove includes shunting the structures such as gap and arc section, not merely with arc section
Structure plays normal restriction effect, in addition, valve core outer surface can directly be impacted with dispersed placement by shunting the arrangement in gap
Water flow energy, reduce its impact force, further increase antihypertensive effect.
(3) the specific position arrangement for shunting gap can make the fluid in a throttling annular groove enter next section at interflow
When flowing in annular groove, it may occur that mutually collision forms high turbulent flow, the effect for offsetting fluid impingement force can be effectively played, in addition, baffle
The structures such as plate arrangement can also significantly increase the turbulating effect of the fluid by the ring groove part that throttles, and then amplify fluid and fluid
Between, fluid and throttling annular groove inner wall between friction, effectively consume fluid energy, achieve the purpose that decompression.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the throttling annular groove of the utility model；
Fig. 3 is the structure three-dimensional schematic diagram of the throttling annular groove of the utility model.
Description of symbols in figure:
1- spool, 11- spool top, 12- sealing surface A, 13- spool lower part, 2- valve seat, 21- circle ring inner wall face, 22- are close
Cover B, 3- throttling annular groove, 31- annular inner wall, 32- shunt gap, 33- flow-stopping plate.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.The present embodiment is with the utility model
Implemented premised on technical solution, the detailed implementation method and specific operation process are given, but the guarantor of the utility model
Shield range is not limited to the following embodiments.
Embodiment 1
Spool valve seat combination part with annular groove buck configuration including the valve seat 2 with circle ring inner wall face and is in the form of a column
Spool 1, valve seat 2 is in sealing contact with spool 1 and forms sealing surface structure, along center axis thereof direction on the inner wall of valve seat 2
It is machined with the throttling annular groove 3 that a plurality of section is square, spool 1 is made of two sections of cylinders, in two sections of cylinders, be relatively large in diameter one section
(i.e. spool top 11) is located at 2 top of valve seat, the circle ring inner wall face 21 of diameter lesser one section (i.e. spool lower part 13) and valve seat 2
It matches and seals in gap, the transition portion among two sections of cylinders of spool 1 forms the sealing surface A 12 that outer diameter is gradually reduced, valve seat
2 tip inside is machined with the sealing surface B 22 that sealing surface structure is matched and formed with sealing surface A 12.
Embodiment 2
On the basis of embodiment 1, the present embodiment further uses following design:
Referring to fig. 2, shown in Fig. 3, two adjacent sections stream annular groove 3 is separated by one layer with the integrally formed annular inner wall 31 of valve seat 2,
Every layer of annular inner wall 31 is made of the equally spaced arc section of multistage, is formed one between adjacent two sections of arc sections and is shunted gap 32, phase
Shunting gap 32 on adjacent two layers of annular inner wall 31 misplaces arrangement, every shunt gap 32 along 2 central axis of valve seat projection just
Well in the symmetrical center line of the arc section of its adjacent layer annular inner wall 31, the upper and lower surface of adjacent two layers annular inner wall 31 it
Between be disposed with up and down successively staggered flow-stopping plate 33, the height of flow-stopping plate 33 is less than the height of throttling annular groove 3, and is greater than restrictor ring
The half of the height of slot 3.
It can understand the above description of the embodiments is intended to facilitate those skilled in the art and use practical
It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiments without having to go through creative labor.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model scope is made and
Modification should be all within the protection scope of the utility model.
Claims (7)
1. the spool valve seat combination part of annular groove buck configuration is had, including the valve seat with circle ring inner wall face and the valve being in the form of a column
Core, the valve seat contact with seal spool and form sealing surface structure, which is characterized in that along its center on the inner wall of valve seat
Axis direction is machined with the throttling annular groove that a plurality of section is square.
2. the spool valve seat combination part according to claim 1 with annular groove buck configuration, which is characterized in that the valve
Core is made of two sections of cylinders, and in two sections of cylinders, one section be relatively large in diameter is located above valve seat, diameter lesser one section and institute
The circle ring inner wall face of valve seat is stated in gap matching sealing.
3. the spool valve seat combination part according to claim 1 with annular groove buck configuration, which is characterized in that the valve
Transition portion among two sections of cylinders of core forms the sealing surface A that outer diameter is gradually reduced, and the tip inside of the valve seat is machined with
The sealing surface B of sealing surface structure is matched and formed with the sealing surface A.
4. the spool valve seat combination part according to claim 1 with annular groove buck configuration, which is characterized in that two adjacent sections
It flows annular groove and is separated by one layer with the integrally formed annular inner wall of valve seat, every layer of annular inner wall is by the equally spaced arc section group of multistage
At, one is formed between adjacent two sections of arc sections shunts gap, the shunting gap dislocation arrangement on adjacent two layers annular inner wall.
5. the spool valve seat combination part according to claim 4 with annular groove buck configuration, which is characterized in that every shunting
Gap is in the symmetrical center line for the arc section that the projection of valve seat central axis is placed exactly in its adjacent layer annular inner wall.
6. the spool valve seat combination part according to claim 4 with annular groove buck configuration, which is characterized in that adjacent two layers
Successively staggered flow-stopping plate up and down is disposed between the upper and lower surface of annular inner wall.
7. the spool valve seat combination part according to claim 6 with annular groove buck configuration, which is characterized in that the baffle
The height of plate is less than the height of throttling annular groove, and is greater than the half of the height of throttling annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821373897.2U CN208997452U (en) | 2018-08-24 | 2018-08-24 | Spool valve seat combination part with annular groove buck configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821373897.2U CN208997452U (en) | 2018-08-24 | 2018-08-24 | Spool valve seat combination part with annular groove buck configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208997452U true CN208997452U (en) | 2019-06-18 |
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ID=66798906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821373897.2U Active CN208997452U (en) | 2018-08-24 | 2018-08-24 | Spool valve seat combination part with annular groove buck configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208997452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220044A (en) * | 2019-06-24 | 2019-09-10 | 吴忠仪表工程技术服务有限公司 | Double rotational directions multispiral staggered form valve core structure |
-
2018
- 2018-08-24 CN CN201821373897.2U patent/CN208997452U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220044A (en) * | 2019-06-24 | 2019-09-10 | 吴忠仪表工程技术服务有限公司 | Double rotational directions multispiral staggered form valve core structure |
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