CN101832396A - Low-vibration noise valve - Google Patents
Low-vibration noise valve Download PDFInfo
- Publication number
- CN101832396A CN101832396A CN 201010172998 CN201010172998A CN101832396A CN 101832396 A CN101832396 A CN 101832396A CN 201010172998 CN201010172998 CN 201010172998 CN 201010172998 A CN201010172998 A CN 201010172998A CN 101832396 A CN101832396 A CN 101832396A
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- valve
- low
- vibration noise
- valve body
- spool
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Abstract
The invention provides a low-vibration noise valve comprising a valve body, a valve cover, a valve seat, a valve core, a valve clack and a valve rod. The valve cover is arranged on the valve body; the valve seat and the valve core are arranged in the valve body; the valve clack is arranged in the valve core; the valve rod is connected with the valve clack; the valve body is provided with an inlet and an outlet of a fluid; the valve core is provided with a plurality of small flow channels; the valve body and a pipe line form an inclined angle of 45 degrees, i.e. the axial direction of the valve body, and the valve rod and the directions of the inlet and the outlet of the fluid form an angle of 45 degrees. The invention has the characteristics of low noise, low vibration, easy assembly and small volume, can effectively improve the safe reliability of the valve of a high-pressure pipeline system and prolong the service life, and can save the costs of operation and maintenance.
Description
Technical field
What the present invention relates to is a kind of valving.
Background technique
Valve plays an important role in various power equipment systems and process pipe system as the limit switch equipment of fluid.General valve is made up of valve body, valve gap, valve seat, spool, open-shut device, actuator, Sealing, fastening piece etc.Because the throttling action and the blunt form structure of valve, valve generally commonly used is portion's generation fluid turbulent and blending within it all, and then produces strong noise.Evoke the structural modal of valve body or subsidiary pipeline when the valve noise after, also may cause valve or pipe vibration, when serious even cause fatigue ruption.
Summary of the invention
The object of the present invention is to provide and a kind ofly not only can reduce the valve noise, and can suppress the low-vibration noise valve of valve and Analysis of Pipe Vibrations.
The object of the present invention is achieved like this: it comprises valve body, is arranged at the valve gap on the valve body, is positioned at valve seat, the spool of valve body, is positioned at the flap of spool, the valve rod that links to each other with flap; Have fluid inlet and outlet on the valve body; Have plurality of small flow channels on the spool; Valve body and pipeline are 45 ° of angles of inclination, i.e. valve body axial direction that is valve rod and fluid inlet and outlet direction angle at 45.
The present invention can also comprise:
1, described spool is made up of the two-stage concentric cylindrical throttling element that inner valve sleeve, outer valve sleeve constitute, and all has plurality of small flow channels on inner valve sleeve and the outer valve sleeve; The first order throttling Flow area that plurality of small flow channels on the inner valve sleeve constitutes is slightly larger than the pipeline circulation area; The second level throttling Flow area that plurality of small flow channels on the outer valve sleeve constitutes is 1.5-2 a times of pipeline circulation area.
2, the plurality of small flow channels on the inner valve sleeve is the strip hole that circumferentially distributes, and edge, hole cutting v-notch.
3, the spacing of strip hole is more than the rectangular width of octuple.
4, the plurality of small flow channels on the outer valve sleeve is the aperture of equally distributed 1.5mm-2.5mm on the valve pocket wall outside, and edge, hole cutting v-notch.
5, hole pitch is more than the octuple orifice diameter.
6, spool respectively is provided with a metal-rubber packing ring up and down, and inner valve sleeve and outer valve sleeve are embedded in the groove on the metal-rubber packing ring.
In order to reduce the fluid dynamic noise of common valve commonly used, avoid valve to the external world and downstream line radiation excess noise, avoid because the solid coupling of sound causes fatigue ruption, the present invention proposes a kind of low-vibration noise valve, this valve not only can reduce the valve noise, and can suppress valve and Analysis of Pipe Vibrations.
The technological scheme that the present invention solves its technical problem is: profile is basic identical with common valve, but the axis of movement parts is not vertical with fluid pipe-line, but comes flow path direction to be 45 with fluid, so that valve seat planes is as far as possible over against the fluid incoming flow, as shown in Figure 1.The benefit of doing like this is that the fluid flow direction variation is mild than common valve, the fluid swirling meeting much less that spool partly produces, and runner is smooth and easy, so this slanted arrangement can reduce generating noise.In addition, except the vibration and noise reducing design of flow passage structure, spool partly adopts two-stage throttling down block, each level all is divided into the multiply small flow channels to Flow area: the first order adopts the long strip opening, along the spool circumferential array, total circulation area and fluid line circulation area are basic identical, but consider the influence of flow boundary layer, make it be a bit larger tham the pipeline circulation area; Guaranteeing under the suitable prerequisite of circulation area, valve size and valve volume, make every effort to make rectangular aperture pitch big as far as possible, be preferably in more than the rectangular width of octuple, to reduce first order turbulent noise intensity as far as possible, thereby reduce overall noise and minimizing impact, and then suppress second level generation of vibration next stage.The method of punching on the cylinder is adopted in the second level, and the aperture that a large amount of apertures are 1.5mm～2.5mm is evenly distributed, and hole pitch is more than the octuple orifice diameter.The same influence of considering turbulent boundary layer, total circulation area is 1.5～2 times of pipeline circulation area, to reach the two-stage purpose of step-down step by step.For the bigger valve of through-current capacity, steam line valve for example because the working medium flow velocity is higher, produces impact noise when preventing that it from flowing through spool, and the present invention proposes at each edge, small flow channels aperture cutting v-notch.
Although taked above measure, valve still can produce the noise of certain amplitude inevitably, and then can cause valve member and Analysis of Pipe Vibrations.So the upper and lower surface that the present invention contacts with valve body at the low noise valve core assembly is provided with a metal-rubber packing ring respectively.This packing ring is made through braiding and compression by wire, and have high damping, become stiffness characteristics, and certain sound absorbing capabilities is arranged, and also high temperature resistant, corrosion-resistant.The vibration isolation effect of this metal-rubber packing ring makes that the vibration transmissibility of spool and this vibration system of valve body is effectively reduced, even its value is also very little near resonance peak, thereby effectively suppressed the spool vibration that the first order, second level noise cause, and first order vibration is to the transmission of valve body and pipeline.The present invention has low noise, low vibration, be easy to assemble and characteristics that volume is little, safety reliability and the working life that can effectively improve high pressure pipe line system valve, saves operation and maintenance cost.
Description of drawings
Fig. 1 is the low-vibration noise valve structural representation;
Fig. 2 is the inner valve sleeve schematic representation;
Fig. 3 is the outer valve sleeve schematic representation.
Embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1.Valve body 7 axial directions, that is valve rod 1 and fluid inlet and outlet direction angle at 45, spool import facing fluid comes flow path direction.Metal-rubber packing ring 6 is set on the valve seat, in order to isolate since the vibration of the spool that fluid pulsation impacts and the valve noise causes is made of inner valve sleeve 4 and outer valve sleeve 5 propagate to valve body.Inner valve sleeve 4 and outer valve sleeve 5 are placed in packing ring 6 tops, both closely cooperate, be embedded in the groove of packing ring 6, inner valve sleeve 4 with an identical metal-rubber packing ring is set above the outer valve sleeve 5 again, has the groove that prevents that spool from moving equally, put into flap 3 and valve rod 1 again, assembling valve gap 2 and Sealing and fastening piece can constitute complete low-vibration noise valve.
Fig. 2 and Fig. 3 have provided the structure of inner valve sleeve and outer valve sleeve respectively.Valve rod 1 is positioned at the top of its stroke in Fig. 1, and valve is in full-gear.Air-flow is in valve inlet flow valve space, because 45 ° of inclinations of streamlined internal structure and valve, it is less that fluid pulsation and whirlpool are compared with common valve, thereby noise is less.After fluid entered inner valve sleeve, from long strip opening ejection, owing to compare flow rule with common valve and the opening equivalent size is little, pressure drop was little, so the noise of generation is less, and the high-frequency sound energy proportion is big, is not easy to evoke structural vibration.After air-flow entered space between the secondary from the first order, from hole, second level group ejection, because the second level is the aperture of 1.5-2.5mm, acoustic energy further moves to high frequency, even reaches more than the 10000-20000Hz, and was little to environmetal impact, and decay is fast.
Outer valve sleeve vibration in if fluid pulsation and valve noise cause, the inherent characteristic of metal-rubber packing ring can hinder the propagation of vibration to valve body and pipeline, vibrational energy is dissipated in the metal rubber material, and packing ring also has certain noise elimination function.
When valve rod 1 moves down, along with reducing of flow area, fluid flow descends gradually, and valve plays the flow control effect, and vibration noise is all very low.When flap moves to the closing face place, to combine closely with valve seat, this moment, flow was zero, valve closing.
Claims (7)
1. low-vibration noise valve, it comprises valve body, is arranged at the valve gap on the valve body, is positioned at valve seat, the spool of valve body, is positioned at the flap of spool, the valve rod that links to each other with flap; Have fluid inlet and outlet on the valve body; It is characterized in that: have plurality of small flow channels on the spool; Valve body and pipeline are 45 ° of angles of inclination, i.e. valve body axial direction that is valve rod and fluid inlet and outlet direction angle at 45.
2. low-vibration noise valve according to claim 1 is characterized in that: described spool is made up of the two-stage concentric cylindrical throttling element that inner valve sleeve, outer valve sleeve constitute, and all has plurality of small flow channels on inner valve sleeve and the outer valve sleeve; The first order throttling Flow area that plurality of small flow channels on the inner valve sleeve constitutes is slightly larger than the pipeline circulation area; The second level throttling Flow area that plurality of small flow channels on the outer valve sleeve constitutes is 1.5-2 a times of pipeline circulation area.
3. low-vibration noise valve according to claim 2 is characterized in that: the strip hole of the plurality of small flow channels on the inner valve sleeve for circumferentially distributing, and edge, hole cutting v-notch.
4. low-vibration noise valve according to claim 3 is characterized in that: the spacing of strip hole is more than the rectangular width of octuple.
5. low-vibration noise valve according to claim 2 is characterized in that: the plurality of small flow channels on the outer valve sleeve is the aperture of equally distributed 1.5mm-2.5mm on the valve pocket wall outside, and edge, hole cutting v-notch.
6. low-vibration noise valve according to claim 5 is characterized in that: hole pitch is more than the octuple orifice diameter.
7. according to any one described low-vibration noise valve of claim 1-6, it is characterized in that: spool respectively is provided with a metal-rubber packing ring up and down, and inner valve sleeve and outer valve sleeve are embedded in the groove on the metal-rubber packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010172998 CN101832396A (en) | 2010-05-17 | 2010-05-17 | Low-vibration noise valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010172998 CN101832396A (en) | 2010-05-17 | 2010-05-17 | Low-vibration noise valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101832396A true CN101832396A (en) | 2010-09-15 |
Family
ID=42716563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010172998 Pending CN101832396A (en) | 2010-05-17 | 2010-05-17 | Low-vibration noise valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832396A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162007A (en) * | 2011-12-12 | 2013-06-19 | 上海倍夫克阀门有限公司 | V-shaped ball valve |
| CN103174839A (en) * | 2013-03-27 | 2013-06-26 | 浙江理工大学 | Stop valve with valve sleeve capable of reducing cavitation damage |
| CN103486328A (en) * | 2013-09-18 | 2014-01-01 | 哈尔滨工程大学 | Low-noise cage regulating valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3990475A (en) * | 1975-01-08 | 1976-11-09 | Honeywell Inc. | Low noise valve trim |
| US4040440A (en) * | 1975-06-18 | 1977-08-09 | Spence Engineering Company | Silenced valve construction |
| US4567915A (en) * | 1984-02-10 | 1986-02-04 | Valtek Incorporated | Anti-cavitation low-noise control valve cage trim for high pressure reducing service in liquid or gaseous flow |
| CN2929373Y (en) * | 2006-05-08 | 2007-08-01 | 张峰国 | Low noise low cavitation regulating valve |
-
2010
- 2010-05-17 CN CN 201010172998 patent/CN101832396A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3990475A (en) * | 1975-01-08 | 1976-11-09 | Honeywell Inc. | Low noise valve trim |
| US4040440A (en) * | 1975-06-18 | 1977-08-09 | Spence Engineering Company | Silenced valve construction |
| US4567915A (en) * | 1984-02-10 | 1986-02-04 | Valtek Incorporated | Anti-cavitation low-noise control valve cage trim for high pressure reducing service in liquid or gaseous flow |
| CN2929373Y (en) * | 2006-05-08 | 2007-08-01 | 张峰国 | Low noise low cavitation regulating valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162007A (en) * | 2011-12-12 | 2013-06-19 | 上海倍夫克阀门有限公司 | V-shaped ball valve |
| CN103174839A (en) * | 2013-03-27 | 2013-06-26 | 浙江理工大学 | Stop valve with valve sleeve capable of reducing cavitation damage |
| CN103486328A (en) * | 2013-09-18 | 2014-01-01 | 哈尔滨工程大学 | Low-noise cage regulating valve |
| CN103486328B (en) * | 2013-09-18 | 2016-02-03 | 哈尔滨工程大学 | Low noise cage type regulating valve |
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Open date: 20100915 |