CN204878775U - Low noise single seat cage governing valve - Google Patents
Low noise single seat cage governing valve Download PDFInfo
- Publication number
- CN204878775U CN204878775U CN201520488862.3U CN201520488862U CN204878775U CN 204878775 U CN204878775 U CN 204878775U CN 201520488862 U CN201520488862 U CN 201520488862U CN 204878775 U CN204878775 U CN 204878775U
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- Prior art keywords
- valve
- cage
- seal ring
- low noise
- gasket
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- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 229920006169 Perfluoroelastomer Polymers 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Abstract
The utility model discloses a low noise single seat cage governing valve, include: a valve body, a valve sea, the valve cage, support the jar, the sealing ring, seal gasket, the valve rod, a valve cove, the sealing washer, the flat shim, holding screw, and a valve cor, the valve seat seal gasket, there is the window can make liquid circulation and accurate control flow on the valve cage, and a support inside wall of cylinder downside annular ditch inslot still is equipped with two guide rings and the elasticity sealing washer is sealed in order to form, two guide rings are located elasticity sealing washer both sides, guide ring inner cylinder face and case outer face of cylinder contact, and the radial width of guide ring and elasticity sealing washer all slightly is greater than the radial depth that supports inside wall of cylinder downside annular slot, it forms clearance fit to make between the outer face of cylinder of valve cage internal surface and case, reduce the spool face wearing and tearing when playing the direction with sealed effect. The utility model discloses in the low noise single seat cage governing valve that provides compact structure has, sealing performance is reliable, the low noise, adjusts advantage such as precision height.
Description
Technology neck city
The utility model relates to valve industry technical field, particularly a kind of low noise single seat cage type regulating valve.
Background technique
Modulating valve is the important component part in industrial automation control system, is mainly used in the process parameter such as flow, pressure regulating medium.According to the control signal of automatic system, the aperture of automatic regulating valve door, solid line accurately controls the flow of pipeline internal medium, pressure.For large discharge, the applying working condition of High Pressure Difference, is typically employed in valve inner runner and arranges valve cage, and valve cage and the open-shut device such as valve rod and spool are coaxially installed, and the valve cage with decrease of noise functions can effective attenuation media flow noise.The generally common valve cage with decrease of noise functions adopts maze-type structure mostly, multilayer mesh-type noise reduction step by step, and valve cage is divided into plurality of layers (radial and axial multilayer nest structure), and every one deck has a lot of hole pattern, and the hole pattern between different layers is staggered.This labyrinth type multilevel noise reduction valve cage needs the function simultaneously possessing Flow-rate adjustment and noise reduction, there is processing and assembling difficulty large, the shortcomings such as energy loss is many, flow control accuracy difference.Meanwhile, large discharge, the seal request of high pressure differential environment to valve is higher.
Model utility content
In order to overcome the defect of prior art, an object of the present utility model is to provide a kind of low noise single seat cage type regulating valve, one annular groove is set on the downside of shoring inwall, guide ring and elastic seal ring is placed in groove, guide ring and elastic seal ring and spool form Spielpassung, reach the effect of guiding and sealing, and reduce spool face wearing and tearing.
Second object of the present utility model is to provide a kind of low noise single seat cage type regulating valve, at valve cage arranged outside noise reduction cage, to reduce liquid flow velocity, reaches noise reduction object.
3rd object of the present utility model is to provide a kind of low noise single seat cage type regulating valve, arranges multi-sealing structure, to reach better sealing between valve body and valve gap.Meanwhile, valve seat lower surface arranges sealed groove for settling gasket seal, and the height after the compression of sealing groove depth gasket seal, to guarantee the reliability that valve seat place seal and prolongation gasket seal working life.
For reaching this object, the utility model provides following technological scheme:
The utility model provides a kind of low noise single seat cage type regulating valve, comprising: valve body, valve seat, valve cage, shoring, seal ring, gasket seal, valve rod, valve gap, seal ring, flat gasket, Cock screw, spool, valve base sealing pad, described valve cage is positioned at above described valve seat, described valve cage there is window liquid can be made to circulate and accurate flow control, and comprise guide ring and elastic seal ring, an annular groove is had on the downside of described shoring inwall, described elastic seal ring to be positioned on the downside of described shoring inwall annular groove to form sealing, and respectively there is a described guide ring described elastic seal ring both sides, described guide ring inner cylindrical surface contacts with described spool external cylindrical surface, and the radial width of described guide ring and described elastic seal ring is all slightly larger than the radial depth of annular groove on the downside of described shoring inwall, make to form Spielpassung between described valve cage internal surface and described spool external cylindrical surface, to reach the effect of guiding and sealing, and reduce spool face wearing and tearing.
In a concrete technological scheme, described valve cage arranged outside has noise reduction cage, and described noise reduction cage can reduce liquid flow velocity, reaches noise reduction object.
In the technological scheme that another is concrete, described noise reduction cage is columnar structured, and on its barrel, radial direction is provided with multiple cylindrical hole.
In the technological scheme that another is concrete, a ring-shaped step is also had on the upside of described shoring outer wall, described seal ring is positioned on step end face, described flat gasket is positioned on described seal ring, described gasket seal is placed in flat gasket simultaneously and is positioned on the cylinder step inside described valve body, and compressed by described valve gap, the external cylindrical surface of the part that simultaneously matches with described valve flange inner cylindrical surface in described valve gap there is a groove, in groove, is provided with seal ring.
In the technological scheme that another is concrete, the material of described seal ring is Expanded graphite or composite graphite, described sealing ring material is FFKM, the material of described flat gasket is reinforced TFE or nickel-base alloy, and/or gasket seal is spiral wound gasket form or metal jacketed gasket form.
In the technological scheme that another is concrete, the surface matched with described valve body in described valve seat lower end surface is provided with sealed groove, valve base sealing pad is provided with in groove, and depth of groove equal described valve base sealing pad install after height after stress deformation, to guarantee the reliability that valve seat place seal and prolongation gasket seal working life.
In the technological scheme that another is concrete, described spool upper-end surface is provided with a tapped hole obliquely, this tapped hole communicates with center spool tapped hole, and described valve rod lower end arranges a cylinder counterbore, described Cock screw can through the cylinder counterbore of the oblique tapped hole on described spool and described valve rod lower end, and this structure can effectively prevent spool from coming off from valve rod.
A kind of low noise single seat cage type regulating valve that the technical program provides, by arranging an annular groove on the downside of shoring inwall, guide ring and elastic seal ring is placed in groove, guide ring and elastic seal ring and spool form Spielpassung, and multi-sealing structure is set between valve body and valve gap, and at valve cage arranged outside noise reduction cage, valve seat lower surface arranges sealed groove for settling gasket seal simultaneously, height after the compression of sealing groove depth gasket seal, reach and reduce spool face wearing and tearing, reduce liquid flow velocity thus reduce noise, and the object of better sealing can be formed.
Accompanying drawing explanation
Fig. 1 is the structural representation of low noise single seat cage type regulating valve.
In figure:
1. valve body; 2. valve seat; 3. noise reduction cage; 4. valve cage; 5. guide ring; 6. shoring; 7. seal ring; 8. gasket seal; 9. valve rod; 10. valve gap; 11. seal rings; 12. flat gaskets; 13. elastic seal rings; 14. Cock screws; 15. spools; 16. valve base sealing pads.
Embodiment
Be described in more detail below in conjunction with accompanying drawing 1 pair of model utility.
As shown in Figure 1, low noise single seat cage type regulating valve structure of the present utility model is: in valve body 1, center hole is provided with valve seat 2, valve cage 4 and noise reduction cage 3 is provided with above valve seat 2, valve cage 4 is positioned at inside noise reduction cage 3, valve cage 4 is provided with window and liquid can be made to circulate and pass through spool 15 to rise to different heights, liquid is made to flow through valve cage 4 window area difference thus accurate flow control, noise reduction cage 3 is columnar structured, on its barrel, radial direction is provided with multiple cylindrical hole, liquid flows out rear by the through hole noise reduction cage 3 from valve cage 4 window, thus reduce liquid flow velocity, reach noise reduction object.Shoring 6 is pressed on above valve cage 4 and noise reduction cage 3 simultaneously, an annular groove is had on the downside of shoring 6 inwall, an elastic seal ring 13 and two guide rings 5 are provided with in annular groove, guide ring 5 points is listed in the both sides up and down of elastic seal ring 13, below guide ring 5 contacts with valve cage 4, guide ring 5 inner cylindrical surface contacts with spool 15 external cylindrical surface, and the radial width of guide ring 5 and elastic seal ring 13 is all slightly larger than the radial depth of annular groove on the downside of shoring 6 inwall, make to form Spielpassung between valve cage 4 internal surface and spool 15 external cylindrical surface.Shoring 6 external cylindrical surface matches with valve body 1 upper flange hole, and with this flange hole concentric.A ring-shaped step is had on the upside of shoring 6 outer wall, seal ring 7 is provided with in this ring-shaped step, seal ring 7 material is Expanded graphite, the sealing materials such as composite graphite, flat gasket 12 is provided with above seal ring 7, flat gasket 12 material is reinforced TFE, the materials such as nickel-base alloy, gasket seal 8 is provided with above flat gasket 12, gasket seal 8 is spiral wound gasket, the forms such as metal jacketed gasket, gasket seal 8 is pressed on the cylinder step inside flat gasket 12 and valve body 1 simultaneously, valve gap 10 is pressed on above gasket seal 8, by gasket seal 8, flat gasket 12, seal ring 7 is pressed on valve gap 10 and between valve body 1 and shoring 6 simultaneously, and valve gap 10 makes valve cage 4 and noise reduction cage 3 be pressed on valve seat 2 by compressing shoring 6.The external cylindrical surface of the part that matches with valve body 1 flange inner cylindrical surface in valve gap 10 has a groove, and be provided with seal ring 11 in groove, the material of seal ring 11 is FFKM.Valve gap 10 and valve body 1 are bolted.Valve cage 4 inside is provided with spool 15, valve rod 9 is threaded with spool 15 through after valve gap 10, in addition spool 15 upper-end surface is provided with a tapped hole obliquely, this tapped hole communicates with center spool tapped hole, and valve rod 9 lower end arranges a cylinder counterbore, valve rod 9 and spool 15 can be connected and fixed through the cylinder counterbore of the oblique tapped hole on spool 15 and valve rod 9 lower end by Cock screw 14.The surface matched with valve body 1 in valve seat 2 lower end surface is provided with sealed groove, valve base sealing pad 16 is provided with in groove, and depth of groove equal valve base sealing pad 16 rear stress deformation is installed after height, the compression percentages of such valve base sealing pad 16 is determined by depth of groove, is easy to control.
Above-described is only mode of executions more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (7)
1. a low noise single seat cage type regulating valve, comprise: valve body (1), valve seat (2), valve cage (4), shoring (6), seal ring (7), gasket seal (8), valve rod (9), valve gap (10), seal ring (11), flat gasket (12), Cock screw (14), spool (15), valve base sealing pad (16), described valve cage (4) is positioned at described valve seat (2) top, described valve cage (4) there is window liquid can be made to circulate and accurate flow control, it is characterized in that: also comprise guide ring (5) and elastic seal ring (13), an annular groove is had on the downside of described shoring (6) inwall, described elastic seal ring (13) to be positioned on the downside of described shoring (6) inwall annular groove to form sealing, and respectively there is a described guide ring (5) described elastic seal ring (13) both sides, described guide ring (5) inner cylindrical surface contacts with described spool (15) external cylindrical surface, and the radial width of described guide ring (5) and described elastic seal ring (13) is all slightly larger than the radial depth of annular groove on the downside of described shoring (6) inwall, make to form Spielpassung between described valve cage (4) internal surface and described spool (15) external cylindrical surface.
2. low noise single seat cage type regulating valve according to claim 1, is characterized in that described valve cage (4) arranged outside has noise reduction cage (3), and described noise reduction cage (3) can reduce liquid flow velocity, reaches noise reduction object.
3. low noise single seat cage type regulating valve according to claim 2, it is characterized in that described noise reduction cage (3) is for columnar structured, on its barrel, radial direction is provided with multiple cylindrical hole.
4. low noise single seat cage type regulating valve according to claim 1, it is characterized in that also having a ring-shaped step on the upside of described shoring (6) outer wall, described seal ring (7) is positioned on step end face, described flat gasket (12) is positioned on described seal ring (7), described gasket seal (8) is placed in flat gasket (12) simultaneously and is positioned on the cylinder step of described valve body (1) inner side, and compressed by described valve gap (10), the external cylindrical surface of the part that simultaneously matches with described valve body (1) flange inner cylindrical surface in described valve gap (10) there is a groove, seal ring (11) is provided with in groove.
5. low noise single seat cage type regulating valve according to claim 4, it is characterized in that the material of described seal ring (7) is Expanded graphite or composite graphite, described seal ring (11) material is FFKM, the material of described flat gasket (12) is reinforced TFE or nickel-base alloy, and/or gasket seal (8) is spiral wound gasket form or metal jacketed gasket form.
6. low noise single seat cage type regulating valve according to claim 1, it is characterized in that the surface matched with described valve body (1) in described valve seat (2) lower end surface is provided with sealed groove, be provided with valve base sealing pad (16) in groove, and depth of groove equal described valve base sealing pad (16) install after height after stress deformation.
7. the low noise single seat cage type regulating valve according to any one of claim 1-6, it is characterized in that described spool (15) upper-end surface is provided with a tapped hole obliquely, this tapped hole communicates with center spool tapped hole, and described valve rod (9) lower end arranges a cylinder counterbore, described Cock screw (14) can through the cylinder counterbore of the oblique tapped hole on described spool (15) and described valve rod (9) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488862.3U CN204878775U (en) | 2015-07-08 | 2015-07-08 | Low noise single seat cage governing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488862.3U CN204878775U (en) | 2015-07-08 | 2015-07-08 | Low noise single seat cage governing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878775U true CN204878775U (en) | 2015-12-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520488862.3U Active CN204878775U (en) | 2015-07-08 | 2015-07-08 | Low noise single seat cage governing valve |
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| Country | Link |
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| CN (1) | CN204878775U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964050A (en) * | 2015-07-08 | 2015-10-07 | 航天长征化学工程股份有限公司 | Low-noise single-seat cage type regulating valve |
| CN105822778A (en) * | 2016-05-27 | 2016-08-03 | 艾坦姆流体控制技术（北京）有限公司 | Double-guiding valve core assembly |
| CN106730443A (en) * | 2016-12-26 | 2017-05-31 | 重庆君正新型复合材料有限公司 | It is provided with the Quick rescue device of relief valve unit |
| CN113175559A (en) * | 2021-04-30 | 2021-07-27 | 四川泰诺流体控制技术有限公司 | Multi-flow-direction valve cage and valve cage module |
-
2015
- 2015-07-08 CN CN201520488862.3U patent/CN204878775U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964050A (en) * | 2015-07-08 | 2015-10-07 | 航天长征化学工程股份有限公司 | Low-noise single-seat cage type regulating valve |
| CN104964050B (en) * | 2015-07-08 | 2018-11-27 | 航天长征化学工程股份有限公司 | Low-noise single-seat cage type regulating valve |
| CN105822778A (en) * | 2016-05-27 | 2016-08-03 | 艾坦姆流体控制技术（北京）有限公司 | Double-guiding valve core assembly |
| CN106730443A (en) * | 2016-12-26 | 2017-05-31 | 重庆君正新型复合材料有限公司 | It is provided with the Quick rescue device of relief valve unit |
| CN113175559A (en) * | 2021-04-30 | 2021-07-27 | 四川泰诺流体控制技术有限公司 | Multi-flow-direction valve cage and valve cage module |
| CN113175559B (en) * | 2021-04-30 | 2022-08-16 | 四川泰诺流体控制技术有限公司 | Multi-flow-direction valve cage and valve cage module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |