CN204226832U - A kind of bass choke stop evacuation valve - Google Patents
A kind of bass choke stop evacuation valve Download PDFInfo
- Publication number
- CN204226832U CN204226832U CN201420690967.2U CN201420690967U CN204226832U CN 204226832 U CN204226832 U CN 204226832U CN 201420690967 U CN201420690967 U CN 201420690967U CN 204226832 U CN204226832 U CN 204226832U
- Authority
- CN
- China
- Prior art keywords
- valve
- bass
- stop evacuation
- sound
- throttling groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of bass choke stop evacuation valve, belong to valve field.This bass choke stop evacuation valve comprises valve body, valve rod, support, valve gap, is provided with the valve pocket of the same axis with valve rod in described valve body, and valve pocket lower circumference is provided with at least one group of throttling groove different in size; On the same axis, each throttling groove is periodic symmetry distribution in the bottom of described throttling groove; Described valve body inlet section and outlet section excircle are also provided with sound-absorption layer, are filled with slag wool in sound-absorption layer.The utility model is adopted effectively to solve the noise problem of choke stop evacuation valve.
Description
Technical field
The utility model relates to valve field, specifically a kind of bass choke stop evacuation valve.
Background technique
Choke stop evacuation valve is a kind of double seal valve, plays in the conveyance conduit being mainly used in oil, rock gas, coal gas, blau gas etc., uses usually used as regulable control or cut-out.Such valve is a kind of novel throttling, cut-off, emptying product, has multistage throttle effect, the features such as restriction effect is obvious, sealing is reliable, convenient operating maintenance.
At existing choke stop evacuation valve in the throttling of valve, cut-out, equalizing orifice arranges to alleviate in operation torsion, combination seal etc. all very much progress.But still there are distinct issues in actual conditions application: in high pressure or middle pressure ring border, the noise of valve is abnormal large, and noise is also a kind of pollution, is in noisy environment the health worked to workman for a long time and causes damage.
Model utility content
The utility model aims to provide a kind of bass choke stop evacuation valve, to solve the problem.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of bass choke stop evacuation valve, comprise valve body, valve rod, support, valve gap, it is characterized in that: the valve pocket being provided with the same axis with valve rod in described valve body, valve pocket lower circumference is provided with at least one group of throttling groove different in size; On the same axis, each throttling groove is periodic symmetry distribution in the bottom of described throttling groove; Described valve body inlet section and outlet section excircle are also provided with sound-absorption layer, are filled with slag wool in sound-absorption layer.
Further, be provided with the flap of flexible connection in described valve pocket, under flap, excircle is provided with and scrapes slag cutting edge, and scraping slag cutting edge is arc-shaped, laminating valve pocket.
Further, described flap contacts circumferential surface and has at least two and place the annular groove sealing O shape and enclose with valve pocket, be provided with storage slag chute between two annular grooves.
The beneficial effects of the utility model are:
One, flap contacts circumferential surface and has at least two and place the annular groove sealing O shape and enclose with valve pocket, and be provided with storage slag chute between two annular grooves, under flap, excircle is provided with and scrapes slag cutting edge, and scraping slag cutting edge is arc-shaped, laminating tubular valve pocket.Scrape slag cutting edge effectively to strike off and be adsorbed on various medium crystallization on valve pocket inner peripheral surface or foreign material, and the residue these struck off stores in storage slag chute, makes between flap and valve pocket without stuck phenomenon.It also avoid flap simultaneously and occur that when opening the pressure reduction that jam causes is unstable, make flap and valve pocket run more stable, reduce vibration, reduce noise.
Two, valve pocket lower circumference is laid with throttling groove different in size, each throttling groove periodic symmetry distribution.While the effective throttling of length throttling groove, ensure that in valve opening process, the flow shape that is in line increases progressively, and seamlessly transits to decrease differential pressure vibration when structural design medium flows out simultaneously, plays the effect of noise-reducing.
Three, valve body inlet section and outlet section excircle are also provided with sound-absorption layer, are filled with slag wool in sound-absorption layer.Slag wool is a kind of staple shape inorfil, it have the light thermal conductivity of quality little, do not burn, the feature such as mothproof, inexpensive, corrosion-resistant, chemical stability is good, sound absorbing capabilities is good.Arrange slag wool, effective control noise source, carries out sound-absorbing to noise source, weakens the diffusion of noise.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of low noise throttle stop emptying valve that the utility model provides.
Fig. 2 is the valve pocket schematic diagram that the utility model provides.
Fig. 3 is that the valve pocket that the utility model provides launches schematic diagram.
Mark in figure: 1 be valve body, 2 be valve seat, 3 be flap, 4 be valve pocket, 5 be valve rod, 6 be sound-absorption layer, 9 for throttling groove.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
As shown in Figure 1, a kind of bass choke stop evacuation valve, comprises valve body 1, valve rod 5, support, valve gap, it is characterized in that: be provided with the valve pocket 4 with the same axis of valve rod 5 in described valve body 1, and valve pocket 4 lower circumference is provided with at least one group of throttling groove 9 different in size; On the same axis, each throttling groove 9 distributes in periodic symmetry in the bottom of described throttling groove 9; Described valve body 1 entrance and outlet section excircle are also provided with sound-absorption layer 6, are filled with slag wool in sound-absorption layer 6.Be provided with the flap 3 of flexible connection in described valve pocket 4, flap 3 times excircles are provided with scrapes slag cutting edge, and scraping slag cutting edge is arc-shaped, laminating valve pocket.Described flap 3 contacts circumferential surface and has at least two and place the annular groove sealing O shape and enclose with valve pocket 4, be provided with storage slag chute between two annular grooves.
In use, medium is by the entrance of valve body, and the slag wool in sound-absorption layer 6 carries out sound-absorbing, controls noise source, weakens the diffusion of noise.When medium is by tubular valve pocket 4, the throttling groove 9 different in size that lower circumference is laid with, each throttling groove 9 periodic symmetry distribution.Length throttling groove 9, effectively while throttling, ensure that in valve opening process, and the flow shape that is in line increases progressively, and seamlessly transits to decrease differential pressure vibration when structural design medium flows out simultaneously, plays the effect of noise-reducing.When medium flows out from valve outlet section, sound-absorption layer 6 carries out sound-absorbing again, weakens noise further.The utility model is adopted effectively to solve choke stop evacuation valve noise problem.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a bass choke stop evacuation valve, comprises valve body, valve rod, support, valve gap, it is characterized in that: the valve pocket being provided with the same axis with valve rod in described valve body, and valve pocket lower circumference is provided with at least one group of throttling groove different in size; On the same axis, each throttling groove is periodic symmetry distribution in the bottom of described throttling groove; Described valve body inlet section and outlet section excircle are also provided with sound-absorption layer, are filled with slag wool in sound-absorption layer.
2. bass choke stop evacuation valve according to claim 1, is characterized in that: the flap being provided with flexible connection in described valve pocket, under flap, excircle is provided with and scrapes slag cutting edge, and scraping slag cutting edge is arc-shaped, laminating valve pocket.
3. bass choke stop evacuation valve according to claim 2, is characterized in that: described flap contacts circumferential surface and has at least two and place the annular groove sealing O shape and enclose with valve pocket, be provided with storage slag chute between two annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690967.2U CN204226832U (en) | 2014-11-18 | 2014-11-18 | A kind of bass choke stop evacuation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690967.2U CN204226832U (en) | 2014-11-18 | 2014-11-18 | A kind of bass choke stop evacuation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226832U true CN204226832U (en) | 2015-03-25 |
Family
ID=52924929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420690967.2U Expired - Fee Related CN204226832U (en) | 2014-11-18 | 2014-11-18 | A kind of bass choke stop evacuation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315248A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Low noise throttle cut off emptying valve |
-
2014
- 2014-11-18 CN CN201420690967.2U patent/CN204226832U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315248A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Low noise throttle cut off emptying valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20151118 |
|
| EXPY | Termination of patent right or utility model |