CN103133763B - Labyrinth type pressure reduction and noise reduction device - Google Patents
Labyrinth type pressure reduction and noise reduction device Download PDFInfo
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- CN103133763B CN103133763B CN201210590660.0A CN201210590660A CN103133763B CN 103133763 B CN103133763 B CN 103133763B CN 201210590660 A CN201210590660 A CN 201210590660A CN 103133763 B CN103133763 B CN 103133763B
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Abstract
The invention discloses a labyrinth type pressure reduction and noise reduction device which comprises an inner layer sleeve located in the innermost layer, an outer layer sleeve located in the outermost layer, and a plurality of middle layer sleeves located between the inner layer sleeve and the outer layer sleeve. Each layer sleeve is provided with a pressure reduction and noise reduction structure. According to each layer sleeve, pressure reduction processing and noise reduction processing are conducted for fluid flowing through each layer sleeve through each pressure reduction and noise reduction structure composed of a plurality of annular grooves and a plurality of vertical long holes. According to the labyrinth type pressure reduction and noise reduction device, noise and pressure of the fluid flowing through the device are reduced to a large degree, caviation erosion, caviation and flash evaporation of the fluid are effectively reduced, damage functions of the fluid to other components are reduced, and meanwhile the labyrinth type pressure reduction and noise reduction device is simple in structure, easy to machine and form, and low in manufacture cost.
Description
Technical field
The present invention relates to the step-down of fluid, the damping device of noise reduction, especially a kind of step-down for control valve, reduce cavitation erosion and the mazy type step-down denoising device of cavitation.
Background technique
Control valve is a kind of machinery controlling fluid motion, traditional control valve comprises valve body and spool, valve seat etc., usual employing spool changes the section area of valve seat and spool cooperation place size in valve inner action controls the flow of fluid, or the movement of spool in valve body inner flow passage, realizes unlatching or the closedown of valve.Cavitation erosion is one of modal problem in control valve always, is also the problem that high pressure valve MANUFACTURER strives to find scheme always and solves.
Especially for high differential pressure control valve, the most traditional high pressure valve only has spool and valve seat, and inside does not have labyrinth structure.Like this, due to the cavitation effect that High Pressure Difference causes, spool and valve seat damage are very large, and the life-span is very short.The fact shows, traditional high-pressure angle valve life-span generally only has 2 ~ 3 months, and be when spool and valve seat all adopt cemented carbide or through cure process.
Along with the development of control valve industry, start to occur simple cage construction or adopt multilayer cage construction to be nested together simply, sleeve is beaten the hole of some.Such structure has certain effect really to step-down, but anti-cavitation effect is not clearly, and, punch to processing cause certain difficulty, efficiency comparison is low.
In recent years, occurred a kind of novel disc-type labyrinth structure both at home and abroad, it is superimposed together up and down by the mazy type video disc of some, video disc opened effigurate groove UNICOM internal-and external diameter, after fluid enters video disc, move along passage.Because channel shape is complicated, the moving body sum track of fluid changes, the object reaching step-down, reduce cavitation erosion, reduce cavitation.But novel disc-type structure processing technology is extremely difficult, need by electric discharge machining, work efficiency is very low and cost is very high.
Summary of the invention
The present invention aims to provide a kind of mazy type step-down denoising device,
It comprises one at the inner layer sleeve, of its innermost layer at its outermost outer layer sleeve and the some middle levels sleeve between described inner layer sleeve and outer layer sleeve, described inner layer sleeve, outer layer sleeve and middle level sleeve are respectively hollow cylindrical structure, described inner layer sleeve, seamless link between outer layer sleeve and some middle levels sleeve;
Described inner layer sleeve, outer layer sleeve and middle level sleeve are respectively equipped with internal layer step-down denoising structure, outer step-down denoising structure and middle level step-down denoising structure;
The middle level step-down denoising structure that fluid flows through described each middle level sleeve from described internal layer step-down denoising structure finally flows into outer step-down denoising structure, or the middle level step-down denoising structure that fluid flows through described each middle level sleeve from outer step-down denoising structure finally flows into internal layer step-down denoising structure.
Preferably, described internal layer step-down denoising structure comprises:
Be located at described inner layer sleeve outer surface and the some first ring connected in stars parallel with the circular section of described hollow cylindrical structure,
And penetrate described inner layer sleeve surface and with some first vertical-shaped elongated holes of described hollow cylindrical structure axis being parallel,
Wherein said first ring connected in star and described first vertical-shaped elongated hole are cross-linked.
Preferably, described outer step-down denoising structure comprises:
Be located at described outer layer sleeve internal surface and some second annular grooves parallel with described hollow cylindrical structure circular section,
And penetrate described outer layer sleeve surface and with some second vertical-shaped elongated holes of described hollow cylindrical structure axis being parallel,
Wherein said second annular groove and described second vertical-shaped elongated hole are cross-linked.
Preferably, described middle level step-down denoising structure comprises:
Be located at described middle level sleeve interior surface with outer surface and some three annular grooves parallel with described hollow cylindrical structure circular section,
And penetrate described middle level sleeve surface and with some 3rd vertical-shaped elongated holes of described hollow cylindrical structure axis being parallel,
Wherein said 3rd annular groove and described 3rd vertical-shaped elongated hole are cross-linked.
Preferably, the annular groove mutual dislocation of any two sleeves adjacent in described inner layer sleeve, outer layer sleeve and some middle levels sleeve, the vertical-shaped elongated hole mutual dislocation of any two sleeves adjacent in described inner layer sleeve, outer layer sleeve and some middle levels sleeve.
Preferably, the hard material after described inner layer sleeve, outer layer sleeve and middle level sleeve adopt heat treatment sclerosis is formed.
Compared with prior art, beneficial effect of the present invention is as follows:
1. the present invention effectively can reduce the cavitation erosion of fluid, cavitation and flash distillation effect, reduces fluid to the destruction of trim, reaches the object extending the control valve life-span;
2. the invention solves simultaneously control valve noise large, vibrate large problem;
3. structure of the present invention is simple, easy machine shaping, and fabricating cost is lower;
4. the present invention is widely used, and may be used for gas, liquid and gas liquid mixture.
Certainly, the arbitrary product implementing this invention might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
Fig. 1 is the section of structure of an embodiment provided by the invention;
Fig. 2 is the sectional drawing of the inner layer sleeve of an embodiment provided by the invention;
Fig. 3 is the sectional drawing of the outer layer sleeve of an embodiment provided by the invention;
Fig. 4 is the sectional drawing of the middle level sleeve of an embodiment provided by the invention.
Embodiment
See the accompanying drawing that the embodiment of the present invention is shown, hereafter in more detail the present invention will be described.But the present invention can realize in many different forms, and should not be construed as by the restriction in the embodiment of this proposition.On the contrary, it is abundant and complete open in order to reach for proposing these embodiments, and makes those skilled in the art understand scope of the present invention completely.In these accompanying drawings, for clarity sake, may be exaggerated size and the relative size in layer and region.
The invention provides a kind of mazy type step-down denoising device,
As Fig. 1, comprise one at the inner layer sleeve, of its innermost layer at its outermost outer layer sleeve and several middle level sleeves between described inner layer sleeve and outer layer sleeve, described inner layer sleeve, outer layer sleeve and middle level sleeve are respectively hollow cylindrical structure, described inner layer sleeve, seamless link between outer layer sleeve and some middle levels sleeve;
Described inner layer sleeve, outer layer sleeve and middle level sleeve are respectively equipped with internal layer step-down denoising structure, outer step-down denoising structure and middle level step-down denoising structure;
The middle level step-down denoising structure that fluid flows through described each middle level sleeve from described internal layer step-down denoising structure finally flows into outer step-down denoising structure, or the middle level step-down denoising structure that fluid flows through described each middle level sleeve from outer step-down denoising structure finally flows into internal layer step-down denoising structure.
The present invention repeatedly shunts step-down and reaches by being located at the described internal layer step-down denoising structure in this structure, outer step-down denoising structure and multiple middle levels buffer structure convection cell the object eliminating the cavitation erosion of fluid, cavitation and flash distillation.
As shown in Figure 2, in follow-up embodiment, described internal layer step-down denoising structure comprises:
Be located at described inner layer sleeve outer surface and the some first ring connected in stars 1 parallel with the circular section of described hollow cylindrical structure,
And penetrate described inner layer sleeve surface and with some first vertical-shaped elongated holes 2 of described hollow cylindrical structure axis being parallel,
Wherein first ring connected in star 1 and the first vertical-shaped elongated hole 2 are cross-linked.
As shown in Figure 3, described outer step-down denoising structure comprises:
Be located at described outer layer sleeve internal surface and some second annular grooves 3 parallel with described hollow cylindrical structure circular section,
And penetrate described outer layer sleeve surface and with some second vertical-shaped elongated holes 4 of described hollow cylindrical structure axis being parallel,
Wherein the second annular groove 3 and the second vertical-shaped elongated hole 4 are cross-linked.
As shown in Figure 4, described middle level step-down denoising structure comprises:
Be located at described middle level sleeve interior surface with outer surface and some three annular grooves 5 parallel with described hollow cylindrical structure circular section,
And penetrate described middle level sleeve surface and with some 3rd vertical-shaped elongated holes 6 of described hollow cylindrical structure axis being parallel,
Wherein the 3rd annular groove 5 and the 3rd vertical-shaped elongated hole 6 are cross-linked.
The annular groove mutual dislocation of any two sleeves adjacent in described inner layer sleeve, outer layer sleeve and some middle levels sleeve, the vertical-shaped elongated hole mutual dislocation of any two sleeves adjacent in described inner layer sleeve, outer layer sleeve and some middle levels sleeve.
What each sleeve of the present invention adopted is that hard material heat-treats sclerosis simultaneously, and energy is antiscour well, increases the life-span;
Mode of execution one
Fluid first enters this labyrinth structure from each first vertical-shaped elongated hole 2 of the inner layer sleeve being located at innermost layer; Fluid flows into the some first ring connected in stars 1 staggered with each first vertical-shaped elongated hole 2 again after flowing into each first vertical-shaped elongated hole 2.When moving in first ring connected in star 1, except the restriction of first ring connected in star 1 convection cell, fluid self also has collision that himself potential energy is reduced further; Meanwhile, fluid flows into each 3rd annular groove 5 of this layer after flowing into through the first vertical-shaped elongated hole 2 the 3rd annular groove 5 that is adjacent or being flowed into the 3rd vertical-shaped elongated hole 6 that is adjacent by each first ring connected in star 1, this process completes further step-down; When this labyrinth structure is provided with multilayer middle level sleeve, the middle level step-down denoising structure often through the middle level sleeve of one deck just completes further step-down, and last fluid flows through to be located at outermost outer layer sleeve and to complete last step-down.Whole process completes step pressure reducing, specifically needs to establish which floor sleeve to determine according to actual needs.
Mode of execution two
Fluid first enters this labyrinth structure from each second vertical-shaped elongated hole 4 being located at outermost outer layer sleeve; Fluid flows into some second annular grooves 3 be cross-linked with each second vertical-shaped elongated hole 4 again after flowing into each second vertical-shaped elongated hole 4.When moving in the second annular groove 3, except the restriction of the second annular groove 3 convection cell, fluid self also has collision that himself potential energy is reduced further; Meanwhile, fluid flows into the 3rd annular groove 5 be adjacent or each 3rd annular groove 5 being flowed into this layer of the rear inflow of the 3rd vertical-shaped elongated hole 6 be adjacent by each second annular groove 3 by the second vertical-shaped elongated hole 4, and this process completes further step-down; When this labyrinth structure is provided with multilayer middle level sleeve, the middle level step-down denoising structure often through one deck middle level sleeve just completes further step-down, and last fluid flows through the inner layer sleeve being located at innermost layer and completes last step-down.Whole process completes step pressure reducing, specifically needs to establish which floor sleeve to determine according to actual needs.
The present invention may be used for liquid, gas and vapour-liquid with the flowing material deposited.
Application examples
The present invention can at the concrete utilization of high pressure angle control valve, this device is located in high corner-pressing type valve fluid, well step-down noise reduction is carried out to the fluid of inflow control valve inside, reduce the scouring force to other assembly of valve inner, increase the life-span of valve body, this device can eliminate the much noise in valve simultaneously.
Mazy type step-down denoising device provided by the invention significantly weakens the noise of fluid and pressure that flow through this device, the cavitation erosion of effective minimizing fluid, cavitation and flash distillation, reduce the destruction of fluid to other assemblies, structure of the present invention is simple simultaneously, easy machine shaping, fabricating cost is lower.
The disclosed preferred embodiment of the present invention just sets forth the present invention for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the embodiment that this invention is only described yet.Obviously, according to the content of this specification, can make many modifications and variations.This specification is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technician understand well and to utilize the present invention.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (5)
1. a mazy type step-down denoising device, it is characterized in that, comprise one at the inner layer sleeve, of its innermost layer at its outermost outer layer sleeve and the some middle levels sleeve between described inner layer sleeve and outer layer sleeve, described inner layer sleeve, outer layer sleeve and middle level sleeve are respectively hollow cylindrical structure, described inner layer sleeve, seamless link between outer layer sleeve and some middle levels sleeve;
Described inner layer sleeve, outer layer sleeve and middle level sleeve are respectively equipped with internal layer step-down denoising structure, outer step-down denoising structure and middle level step-down denoising structure;
Described outer step-down denoising structure comprises: be located at described outer layer sleeve internal surface and some second annular grooves parallel with described hollow cylindrical structure circular section, and penetrate described outer layer sleeve surface and with some second vertical-shaped elongated holes of described hollow cylindrical structure axis being parallel, wherein said second annular groove and described second vertical-shaped elongated hole are cross-linked;
The middle level step-down denoising structure that fluid flows through described each middle level sleeve from described internal layer step-down denoising structure finally flows into outer step-down denoising structure, or the middle level step-down denoising structure that fluid flows through described each middle level sleeve from outer step-down denoising structure finally flows into internal layer step-down denoising structure.
2. mazy type step-down denoising device as claimed in claim 1, it is characterized in that, described internal layer step-down denoising structure comprises:
Be located at described inner layer sleeve outer surface and the some first ring connected in stars parallel with the circular section of described hollow cylindrical structure,
And penetrate described inner layer sleeve surface and with some first vertical-shaped elongated holes of described hollow cylindrical structure axis being parallel,
Wherein said first ring connected in star and described first vertical-shaped elongated hole are cross-linked.
3. mazy type step-down denoising device as claimed in claim 2, it is characterized in that, described middle level step-down denoising structure comprises:
Be located at described middle level sleeve interior surface with outer surface and some three annular grooves parallel with described hollow cylindrical structure circular section,
And penetrate described middle level sleeve surface and with some 3rd vertical-shaped elongated holes of described hollow cylindrical structure axis being parallel,
Wherein said 3rd annular groove and described 3rd vertical-shaped elongated hole are cross-linked.
4. mazy type step-down denoising device as claimed in claim 3, it is characterized in that, the annular groove mutual dislocation of any two sleeves adjacent in described inner layer sleeve, outer layer sleeve and some middle levels sleeve, the vertical-shaped elongated hole mutual dislocation of any two sleeves adjacent in described inner layer sleeve, outer layer sleeve and some middle levels sleeve.
5. mazy type step-down denoising device as claimed in claim 4, is characterized in that, the hard material after described inner layer sleeve, outer layer sleeve and middle level sleeve adopt heat treatment sclerosis is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590660.0A CN103133763B (en) | 2012-12-31 | 2012-12-31 | Labyrinth type pressure reduction and noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590660.0A CN103133763B (en) | 2012-12-31 | 2012-12-31 | Labyrinth type pressure reduction and noise reduction device |
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| Publication Number | Publication Date |
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| CN103133763A CN103133763A (en) | 2013-06-05 |
| CN103133763B true CN103133763B (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210590660.0A Active CN103133763B (en) | 2012-12-31 | 2012-12-31 | Labyrinth type pressure reduction and noise reduction device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110713225B (en) * | 2019-10-28 | 2021-11-23 | 江苏大学 | Angle type labyrinth cavitation generator |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3908698A (en) * | 1974-03-07 | 1975-09-30 | Hans D Baumann | Variable resistance type throttling trim |
| DE2641761A1 (en) * | 1976-03-15 | 1977-09-22 | Crane Co | Spindle valve for compressed gas flow - has coaxial expansion bushes between bearing plate and seat ring to reduce decompression noise |
| US5732738A (en) * | 1996-06-20 | 1998-03-31 | Bw/Ip International Of Pennsylvania, Inc. | Valve trim |
| US5769122A (en) * | 1997-02-04 | 1998-06-23 | Fisher Controls International, Inc. | Fluid pressure reduction device |
| CN201348054Y (en) * | 2008-12-21 | 2009-11-18 | 重庆川仪自动化股份有限公司 | High-temperature steam governing valve |
| CN201521710U (en) * | 2009-10-29 | 2010-07-07 | 黄育进 | Decompression plate for Labyrinth adjusting valve |
| CN201531676U (en) * | 2009-11-03 | 2010-07-21 | 徐州阿卡控制阀门有限公司 | Labyrinth noise reduction regulating valve |
| CN202056402U (en) * | 2011-05-30 | 2011-11-30 | 南通市电站阀门有限公司 | Spiral groove type multilevel throttling and pressure reducing disc |
| CN202418892U (en) * | 2012-01-12 | 2012-09-05 | 西派集团有限公司 | Pressure/noise reduction sleeve regulating valve |
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