CN209340636U - A kind of labyrinth type multilevel decompression noise reduction valve seat - Google Patents
A kind of labyrinth type multilevel decompression noise reduction valve seat Download PDFInfo
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- CN209340636U CN209340636U CN201821966326.XU CN201821966326U CN209340636U CN 209340636 U CN209340636 U CN 209340636U CN 201821966326 U CN201821966326 U CN 201821966326U CN 209340636 U CN209340636 U CN 209340636U
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- noise reduction
- valve seat
- cage
- throttle orifice
- seat matrix
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Abstract
The utility model relates to a kind of labyrinth type multilevel decompression noise reduction valve seat, including valve seat matrix and noise reduction cage, the valve seat matrix is equipped with runner, and the lower end two sides of the runner offer first segment discharge orifice, and the first segment discharge orifice runs through the valve seat matrix；The lower end outside of the valve seat matrix is arranged with noise reduction cage, the upper and lower side two sides of the noise reduction cage are respectively equipped with throttle orifice and lower throttle orifice, the upper throttle orifice is connected to the first segment discharge orifice, the lower throttle orifice is connect with the valve seat matrix by a partition and is separated with the first segment discharge orifice, solves existing decompression noise reduction valve seat and there was only level-one or two-stage and cause to be depressured the undesirable technical problem of noise reduction effect.
Description
Technical field
The utility model relates to a kind of labyrinth type noise reduction valve seat, in particular to a kind of labyrinth type multilevel decompression noise reduction valve seat.
Background technique
In the requirement of certain techniques, pressure difference is larger after and before the valve, needs to doing decompression noise reduction process, existing decompression in valve
The method of noise reduction has: 1, conventional Low-noise valve base, as shown in Figure 1, valve seat only has one layer, side and bottom surface are punched；2, double-deck low
Noise valve seat, as shown in Fig. 2, valve seat only has two layers, side and bottom surface punching, outer layer and internal layer are by being welded together.
The valve seat of above scheme only has one layer, and most two layers, side and bottom surface punching, medium form decompression noise reduction when passing through this valve seat,
But only level-one or two-stage, decompression noise reduction effect are undesirable.
Utility model content
The purpose of this utility model is to provide a kind of labyrinth type multilevel decompression noise reduction valve seats, to solve existing decompression drop
Valve seat of making an uproar only has level-one or two-stage and causes to be depressured the undesirable technical problem of noise reduction effect.
To solve the above-mentioned problems, the utility model provides a kind of labyrinth type multilevel decompression noise reduction valve seat, including valve seat
Matrix and noise reduction cage, the valve seat matrix are equipped with runner, and the lower end two sides of the runner offer first segment discharge orifice, and described the
One throttle orifice runs through the valve seat matrix；
The lower end outside of the valve seat matrix is arranged with noise reduction cage, and the upper and lower side two sides of the noise reduction cage are respectively equipped with section
Discharge orifice and lower throttle orifice, the upper throttle orifice are connected to the first segment discharge orifice, the lower throttle orifice by a partition with it is described
Valve seat matrix is connected and is separated with the first segment discharge orifice.
Preferably, the opening of the runner is equipped with sealing valve line.
Preferably, the upper end of the noise reduction cage and the valve seat matrix are welded or are interference fitted.
Preferably, being equipped with gap, the partition between the lower end outer wall of the valve seat matrix and the inner wall of the noise reduction cage
One end connect with the inner wall of the noise reduction cage, the other end is connect with the outer wall of the valve seat matrix, the first segment discharge orifice and
The upper throttle orifice is respectively positioned on the top of the partition, and the lower throttle orifice is located at the lower section of the partition.
Preferably, the partition is made into integration with the noise reduction cage, the outer wall of the partition and the valve seat matrix is close
Fitting.
Preferably, the runner is located on the axis of the valve seat matrix, the runner is from the upper end of the valve seat matrix
Face is open and extends to its lower end, and the height of the runner is less than the height of the valve seat matrix.
Preferably, the lower end surface of the noise reduction cage be lower than the valve seat matrix lower end surface, the lower end of the noise reduction cage, every
A groove structure is formed between the lower end surface of plate and the lower end surface of valve seat matrix, the lower throttle orifice and the groove structure connect
It is logical.
Preferably, when the valve seat is installed, the upper end of the valve seat matrix and the seamless installation of valve body, the noise reduction cage
There are gaps between the valve body for the lower end surface of outer wall and the noise reduction cage.
Preferably, the lower end outside of the valve seat matrix is arranged at least two layers of noise reduction cage, the upper and lower side of the two noise reduction cages
Two sides are respectively equipped with throttle orifice and lower throttle orifice；Close to the upper throttle orifice and described first of a noise reduction cage of the valve seat matrix
Throttle orifice connection, lower throttle orifice are connect with the valve seat matrix by a partition and are separated with the first segment discharge orifice；
It being connected between two layers adjacent of noise reduction cage by a baffle interval, the upper throttle orifice of two adjacent noise reduction cages communicates,
The lower throttle orifice of the noise reduction cage of outer layer is separated by the upper throttle orifice of the baffle and the noise reduction cage of internal layer.
Compared with prior art, there are following technical effects for the utility model:
The utility model provides a kind of labyrinth type multilevel decompression noise reduction valve seat, passes through at least one layer of noise reduction cage and valve seat matrix
Throttle orifice cooperation, formed at least three-level decompression denoising structure valve seat, efficiently solve high-differential-pressure regulating valve pressure difference greatly and
The big problem of noise.
The utility model can not only realize the multilevel decompression noise reduction of valve seat, and the cavitation erosion that can also effectively reduce fluid is made
With protection trim is not affected or less affected by the damage of cavitation erosion, extends the service life of trim and the service life of valve.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it is therefore apparent that and the drawings in the following description are merely some embodiments of the present invention,
For those skilled in the art, without creative efforts, other be can also be obtained according to these attached drawings
Attached drawing.In attached drawing:
Fig. 1 is conventional Low-noise valve base structural schematic diagram in the prior art；
Fig. 2 is the double-deck Low-noise valve base structural schematic diagram in the prior art；
Fig. 3 is a kind of structural schematic diagram of labyrinth type multilevel decompression noise reduction valve seat in the utility model alternative embodiment；
Fig. 4 be the utility model alternative embodiment in fluid bottom into structural schematic diagram；
Fig. 5 be the utility model alternative embodiment in fluid height into structural schematic diagram.
Specific embodiment
It is detailed to a kind of labyrinth type multilevel decompression noise reduction valve seat progress provided by the utility model below with reference to Fig. 3 to Fig. 5
Thin description, the present embodiment are implemented under premised on technical solutions of the utility model, give detailed embodiment
With specific operating process, but the protection scope of the utility model is not limited to the following embodiments, and those skilled in the art are not
In the range of changing the spirit of the present invention and content, can it be modified and be polished.
Fig. 3 to Fig. 5, a kind of labyrinth type multilevel decompression noise reduction valve seat, including valve seat matrix 1 and noise reduction cage 2 are please referred to, it is described
Valve seat matrix 1 is equipped with runner 11, and the lower end two sides of the runner 11 offer first segment discharge orifice 13, the first segment discharge orifice 13
Through the valve seat matrix 1；
The lower end outside of the valve seat matrix 1 is arranged with noise reduction cage 2, lower end outside of the utility model to valve seat matrix 1
It is arranged several layers of noise reduction cages with no restrictions, can be one layer of noise reduction cage, can be multilayer noise reduction cage, the number of plies of noise reduction cage is more, drop
Press noise reduction effect better.If the lower end outside of valve seat matrix 1 is arranged one layer of noise reduction cage 2, three-level decompression noise reduction may be implemented；If valve
When the lower end outside of seat matrix 1 is arranged at least two layers of noise reduction cage 2, the multilevel decompression noise reduction of three-level or more may be implemented, for more
The valve seat of grade decompression noise reduction, then every layer of noise reduction basket structure is similar, i.e., the lower end outside of the described valve seat matrix 1 is arranged at least two layers
The upper and lower side two sides of noise reduction cage 2, the two noise reduction cages 2 are respectively equipped with throttle orifice and lower throttle orifice；Close to the valve seat matrix 1
The upper throttle orifice of a noise reduction cage 2 be connected to the first segment discharge orifice 13, lower throttle orifice passes through a partition and the valve seat matrix 1
It connects and is separated with the first segment discharge orifice 13；It is connected between two layers adjacent of noise reduction cage 2 by a baffle interval, adjacent two
The upper throttle orifice of noise reduction cage 2 communicates, and the lower throttle orifice of the noise reduction cage 2 of outer layer passes through the upper of the noise reduction cage 2 of the baffle and internal layer
Throttle orifice separates.
In the present invention, one or more layers noise reduction cage 2 is designed as needed, and the present embodiment is with one layer of noise reduction cage 2
Example is described in detail.
In the present embodiment, the lower end outside of the valve seat matrix 1 is arranged a noise reduction cage 2, the upper and lower side of the noise reduction cage 2
Two sides are respectively equipped with throttle orifice 21 and lower throttle orifice 22, and the upper throttle orifice 21 is connected to the first segment discharge orifice 13, described
Lower throttle orifice 22 is connect with the valve seat matrix 1 and is separated with the first segment discharge orifice 13 by a partition 3.
In the present embodiment, the runner 11 is located on the axis of the valve seat matrix 1, and the runner 11 is from the valve seat
The upper surface of matrix 1 is open and extends to its lower end, and the height of the runner 11 is less than the height of the valve seat matrix 1, that is, flows
Bottom of the road 11 not through valve seat matrix 1.
Further, the opening of the runner 11 is equipped with sealing valve line 12 and spool valve line cooperates composition
The sealing of valve.
Further, the upper end of the noise reduction cage 2 and the valve seat matrix 1 are welded or are interference fitted, i.e., noise reduction cage 2 is upper
End is sealed with the valve seat matrix 1.
Between the lower end outer wall of the valve seat matrix 1 and the inner wall of the noise reduction cage 2 be equipped with gap, the one of the partition 3
End is connect with the inner wall of the noise reduction cage 2, and the other end is connect with the outer wall of the valve seat matrix 1,13 He of first segment discharge orifice
The upper throttle orifice 21 is respectively positioned on the top of the partition 3, and the lower throttle orifice 22 is located at the lower section of the partition 3.
Further, the partition 3 is made into integration with the noise reduction cage 2, and the partition 3 is outer with the valve seat matrix 1
Wall fits closely.
The lower end surface of the noise reduction cage 2 is lower than the lower end surface of the valve seat matrix 1, the lower end of the noise reduction cage 2, partition 3
Lower end surface and valve seat matrix 1 lower end surface between form a groove structure 4, the lower throttle orifice 22 and the groove structure
4 connections.
When the valve seat is installed, the upper end of the valve seat matrix 1 and the seamless installation of valve body 5 can pass through pad between the two
Piece 6 reinforces sealing.There are gaps between the valve body 5 for the lower end surface of the outer wall of the noise reduction cage 2 and the noise reduction cage 2.
After the valve seat installs, when flow direction be bottom into when, fluid enters valve seat from 5 entrance A of valve body, flows to such as Fig. 4 institute
Show.Fluid enters valve body 5 from lower end, separates three kinds of flow directions when reaching at C: to the left, right and up.Due to the noise reduction cage
2 is smaller with the gap of valve body 5, and fluid to the left and to the right forms level-one decompression Noise Reduction when flowing through gap, when fluid reaches
After valve body 5, since the inhibition of valve body 5 starts to move upwards.Simultaneously as the barrier effect of the noise reduction cage 2, at C
Upward fluid separates two kinds of flow directions again, and respectively to the left and to the right, fluid to the left and to the right passes through the lower section of 2 lower end of noise reduction cage
After discharge orifice 22, also forms level-one and be depressured noise reduction.Upward fluid forms level-one after encountering the upper throttle orifice 21 of 2 upper end of noise reduction cage again
It is depressured noise reduction, changes simultaneously direction, is reached at the clearance D between noise reduction cage 2 and valve seat matrix 1.Fluid at D is due to pressure
Effect will continue to move forward, flow through the first segment discharge orifice 13 on the valve seat matrix 1, and forms level-one and be depressured noise reduction.At this time
Fluid has arrived in the runner E of valve seat matrix 1, and fluid continues up arrival outlet B by E, and control valve forms circulation.
In process fluid flow, other than flowing through throttle orifice and forming decompression noise reduction, the collision of fluid and part, fluid itself is touched
It hits, can also form decompression Noise Reduction.Meanwhile by the decompression noise reduction of valve seat, the pressure difference before control valve and after valve reduces, and is formed
A possibility that cavitation erosion, can reduce, or cavitation erosion weakens the injury of control valve significantly.
When flow direction for it is high into when, fluid enters valve seat from B mouthful, and flow direction is as shown in Figure 5.It, can be along institute after fluid reaches at E
It states the first segment discharge orifice 13 on valve seat matrix 1 and flows the gap reached between valve seat matrix 1 and the noise reduction cage 2 to the left and to the right
At D, forms level-one and be depressured noise reduction.It, can be along the upper section of 2 upper end of noise reduction cage due to the effect of pressure after fluid reaches at D
Discharge orifice 21 is flowed outwardly to up to the gap between noise reduction cage 2 and valve body 5, and is formed level-one and be depressured noise reduction.Fluid continues fortune downwards
It is dynamic, it can be along the gap difference between the lower throttle orifice 22 and 2 lower end surface of noise reduction cage and valve body 5 of 2 lower end of noise reduction cage to the right
With move downward, make fluid reach C place, and formed level-one decompression noise reduction.After fluid reaches at C, to the twice stream of right and left
Know from experience mutually collision to be combined into one in 5 runner A of valve body to all move downward, realize the circulation of control valve.Similarly,
In process fluid flow, other than flowing through throttle orifice and forming decompression noise reduction, the collision of fluid and part, fluid itself is touched
A possibility that hitting, capable of also forming decompression Noise Reduction, form cavitation erosion in valve can also greatly reduce, or cavitation erosion is to the wound of control valve
Evil weakens significantly.
Disclosed above is only the specific embodiment of the application, and however, this application is not limited to this, any this field
Technical staff can think variation, should all fall in the protection domain of the application.
Claims (9)
1. a kind of labyrinth type multilevel decompression noise reduction valve seat, which is characterized in that including valve seat matrix and noise reduction cage, the valve seat matrix
It is equipped with runner, the lower end two sides of the runner offer first segment discharge orifice, and the first segment discharge orifice runs through the valve seat matrix；
The lower end outside of the valve seat matrix is arranged with noise reduction cage, and the upper and lower side two sides of the noise reduction cage are respectively equipped with throttle orifice
With lower throttle orifice, the upper throttle orifice is connected to the first segment discharge orifice, and the lower throttle orifice passes through a partition and the valve seat
Matrix is connected and is separated with the first segment discharge orifice.
2. a kind of labyrinth type multilevel decompression noise reduction valve seat as described in claim 1, which is characterized in that the opening of the runner
Equipped with sealing valve line.
3. a kind of labyrinth type multilevel decompression noise reduction valve seat as described in claim 1, which is characterized in that the upper end of the noise reduction cage
It welds or is interference fitted with the valve seat matrix.
4. a kind of labyrinth type multilevel decompression noise reduction valve seat as described in claim 1, which is characterized in that under the valve seat matrix
It holds and is equipped with gap between outer wall and the inner wall of the noise reduction cage, one end of the partition is connect with the inner wall of the noise reduction cage, separately
One end is connect with the outer wall of the valve seat matrix, and the first segment discharge orifice and the upper throttle orifice are respectively positioned on the upper of the partition
Side, the lower throttle orifice are located at the lower section of the partition.
5. a kind of labyrinth type multilevel decompression noise reduction valve seat as claimed in claim 4, which is characterized in that the partition and the drop
Cage of making an uproar is made into integration, and the outer wall of the partition and the valve seat matrix fits closely.
6. a kind of labyrinth type multilevel decompression noise reduction valve seat as described in claim 1, which is characterized in that the runner is located at described
On the axis of valve seat matrix, the runner is open from the upper surface of the valve seat matrix and extends to its lower end, the runner
Height is less than the height of the valve seat matrix.
7. a kind of labyrinth type multilevel decompression noise reduction valve seat as described in claim 1, which is characterized in that the lower end of the noise reduction cage
Face is lower than the lower end surface of the valve seat matrix, the lower end surface of the lower end of the noise reduction cage, the lower end surface of partition and valve seat matrix
Between form a groove structure, the lower throttle orifice is connected to the groove structure.
8. a kind of labyrinth type multilevel decompression noise reduction valve seat as described in claim 1, which is characterized in that when the valve seat is installed,
The lower end surface of the upper end of the valve seat matrix and the seamless installation of valve body, the outer wall of the noise reduction cage and the noise reduction cage is and institute
State between valve body that there are gaps.
9. a kind of labyrinth type multilevel decompression noise reduction valve seat as claimed in any one of claims 1 to 8, which is characterized in that the valve
The lower end outside of seat matrix is arranged at least two layers of noise reduction cage, the upper and lower side two sides of the two noise reduction cages be respectively equipped with throttle orifice and
Lower throttle orifice；Upper throttle orifice close to a noise reduction cage of the valve seat matrix is connected to the first segment discharge orifice, and lower throttle orifice is logical
A partition is crossed to connect with the valve seat matrix and separate with the first segment discharge orifice；
It is connected between two layers adjacent of noise reduction cage by a baffle interval, the upper throttle orifice of two adjacent noise reduction cages communicates, outer layer
The lower throttle orifice of noise reduction cage separated by the upper throttle orifice of the baffle and the noise reduction cage of internal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821966326.XU CN209340636U (en) | 2018-11-27 | 2018-11-27 | A kind of labyrinth type multilevel decompression noise reduction valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821966326.XU CN209340636U (en) | 2018-11-27 | 2018-11-27 | A kind of labyrinth type multilevel decompression noise reduction valve seat |
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| Publication Number | Publication Date |
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| CN209340636U true CN209340636U (en) | 2019-09-03 |
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| CN201821966326.XU Active CN209340636U (en) | 2018-11-27 | 2018-11-27 | A kind of labyrinth type multilevel decompression noise reduction valve seat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688280A (en) * | 2020-12-31 | 2022-07-01 | 浙江三花智能控制股份有限公司 | Electric valve |
-
2018
- 2018-11-27 CN CN201821966326.XU patent/CN209340636U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688280A (en) * | 2020-12-31 | 2022-07-01 | 浙江三花智能控制股份有限公司 | Electric valve |
| CN114688280B (en) * | 2020-12-31 | 2023-12-05 | 浙江三花智能控制股份有限公司 | Electric valve |
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