CN202252041U - High-pressure noise-reduction emptying stop valve - Google Patents
High-pressure noise-reduction emptying stop valve Download PDFInfo
- Publication number
- CN202252041U CN202252041U CN2011203555507U CN201120355550U CN202252041U CN 202252041 U CN202252041 U CN 202252041U CN 2011203555507 U CN2011203555507 U CN 2011203555507U CN 201120355550 U CN201120355550 U CN 201120355550U CN 202252041 U CN202252041 U CN 202252041U
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- Prior art keywords
- valve
- noise reduction
- flap
- valve body
- valve seat
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- Lift Valve (AREA)
Abstract
The utility model discloses a high-pressure noise-reduction emptying stop valve and aims to provide an emptying stop valve, which has the advantages of good throttling effect, high-pressure emptying, noise reduction and good sealing performance. The key points of the technical scheme are that: the high-pressure noise-reduction emptying stop valve comprises a bottom cover, a valve body and a valve stem, wherein the valve body is arranged on the upper side of the bottom cover and is connected with the bottom cover; throttling components are arranged in the valve body; the throttling components comprise a valve clack, a valve seat, an outlet noise-reduction cover and a throttling head; the outlet noise-reduction cover is provided with an outlet noise-reduction cover throttling orifice, is arranged between the valve clack and the valve body and is attached to the valve clack and the valve body; the valve clack is connected with the valve stem; the throttling head is connected with the valve clack and is arranged on the other side relative to the valve stem; the valve seat is in clearance fit with the throttling head; the valve seat is adaptive to the valve clack; contacting places between the valve seat and the throttling head, and between the valve seat and the valve clack are provided with sealing surfaces; the sealing surface of the contacting place between the valve seat and the throttling head has a hard sealing structure, and the sealing surface of the contacting place between the valve seat and the valve clack simultaneously has a hard sealing structure and a soft sealing structure; and the soft sealing structure is a convex sealing structure.
Description
Technical field
The utility model relates to a kind of valve, and more particularly, it relates to a kind of high pressure noise reduction vent stop valve.
Background technique
Stop valve also is pipe valve, is to use the most a kind of valve, and why very popular it is; Be that Lift is little, and is easy to manufacture owing to frictional force between the sealing surface in the switching process is little, more durable; Easy to maintenance, be not only applicable to mesolow, and be applicable to high pressure.
The open-shut device of stop valve is the flap of stopper, and sealing surface is the plane or the conical surface, and the center line moving linearly of flap longshore current body, stop valve are meant the valve that closure member (flap) moves along the centre line.Rely on valve thick stick pressure, flap sealing surface and sealing surface of seat are fitted tightly, stop the medium circulation, thereby realize the closure of valve.According to this mobile form of flap along the centre line, the variation of valve seat port is and flap stroke relation in direct ratio.Because the valve rod of such valve is opened or shutoff stroke is shorter relatively, and have and cut off function very reliably, again because the variation of valve seat port and the stroke relation in direct ratio of flap are very suitable for the adjusting to flow.Therefore, such valve is suitable as cut-out or adjusting and throttling usefulness very much.
Yet traditional stop valve adopts the one-level throttling usually, promptly comes throttling through the sealing surface between valve seat and the flap, sealing surface be not durable and restriction effect not obvious, and when throttling emptying, noise is also bigger.
Summary of the invention
To the deficiency that existing technology exists, the purpose of the utility model is to provide a kind of better high pressure noise reduction vent stop valve of restriction effect that under high pressure conditions, has during emptying.
For realizing above-mentioned purpose, the utility model provides following technological scheme: a kind of high pressure noise reduction vent stop valve comprises valve rod and the valve body that has only snout cavity and outlet plenum; Be provided with orifice union in the described valve body, said orifice union comprises flap and valve seat, and described orifice union also comprises strangling head; Flap is connected setting with valve rod; And flap is provided with at least two equalizing orifices, and equalizing orifice is arranged at the both sides of relative valve rod respectively, and strangling head is connected and is arranged at the opposite side of relative valve rod with flap; The all suitable setting of valve seat and strangling head, valve seat and flap, and corresponding position is provided with sealing surface between valve seat and strangling head, valve seat and the flap.
Through adopting technique scheme, stop valve passes through the throttling of strangling head one-level, flap and valve seat two-step throttle, and separate between the throttling part, restriction effect is better than traditional stop valve.
The utility model further is set to: said valve seat be hard sealing with the sealing surface of strangling head contact position, the sealing surface of said valve seat and flap contact position is for sealing and soft seal seals simultaneously firmly, and described soft seal is a male seal projection.
Through adopting technique scheme; Have hard sealing under the valves closed condition, soft seal seals simultaneously, soft seal is a rubber material, the big good seal of elasticity; And be male seal projection; Satisfy the function that is not blown away, seal pile-up welding hard alloy firmly, satisfy high pressure air, liquid medium " zero leakage " by medium.
The utility model further is set to: said orifice union also includes the outlet noise reduction that is arranged on the outlet plenum that valve body sends out and shrouds; Said outlet noise reduction shrouds and places between flap and the valve body; And be adjacent to setting with flap, valve body, said outlet noise reduction shroud be provided with the outlet noise reduction shroud restriction.
Through adopting technique scheme; The outlet noise reduction shrouds the setting of throttling window, has the good joint step-down of pursuing and prevents cavitation performance, and being provided with that the outlet noise reduction shrouds constitutes third level throttling; Relatively independent with throttling parts such as strangling head, flap, valve seats, strengthen restriction effect once more.
The utility model further is set to: a side of the relative strangling head of said flap is provided with depressed part, and depressed part is round table-like.
Through adopting technique scheme, can change MEDIA FLOW to and produce the oblique angle shape of eddy current, turn-off transient blows few sealing surface, impurity can not stick on the sealing surface, seals more reliable.
The utility model further is set to: flap is provided with at least two equalizing orifices, and equalizing orifice is arranged at the both sides of relative valve rod respectively.
Through adopting technique scheme, make the pressure balance of suction side pressure and valve pocket, reduce hoisting capacity, help the sealing of valve, changed the unbalanced force that flap receives simultaneously, thus shake when making valve working little, noise is low.
The utility model further is set to: flap is provided with the storage slag chute being provided with twice O shape circle with the position of being close to setting shrouded of outlet noise reduction between the twice O shape circle.
Through adopting technique scheme, such structural design makes flap in the outlet noise reduction shrouds, move up and down the realization self-skimming, and residue is stored in the slag chute.
The utility model further is set to: said valve body is connected with bottom, and valve body places the bottom top, and the position of the relative bottom of snout cavity of said valve body is provided with the import noise reduction and shrouds, and the import noise reduction shrouds and is provided with restriction.
Through adopting technique scheme, the import noise reduction shrouds realizes shunting decompression noise reduction and convection current decompression before the valve, restriction further raising restriction effect is set, bottom the installation that has made things convenient for the import noise reduction to shroud is set.
The utility model further is set to: said valve body is connected with valve gap, and the relative valve rod of valve gap place is provided with grease pouring valve.
Through adopting technique scheme, guarantee that the valve rod place do not leak and prolong valve rod working life.
Description of drawings
Fig. 1 is the utility model high pressure noise reduction vent stop valve embodiment's a structural representation;
Fig. 2 is the A portion enlarged view of Fig. 1.
Embodiment
Referring to figs. 1 through Fig. 2 the utility model high pressure noise reduction vent stop valve embodiment is further specified.
A kind of high pressure noise reduction vent stop valve comprises valve body 1 and valve rod 2, and the snout cavity 11 and the outlet plenum 12 of valve body 1 are designed to big volume inner-cavity structure, has the medium of alleviation high flow rate and washes away the function of valve body 1 inwall, reduces flow velocity reduction noise function thereby reach; Said valve gap 3 relative valve rods 2 places are provided with grease pouring valve 31, are used to guarantee that does not leak and prolong valve rod 2 at valve rod 2 places uses the longevity; Be provided with orifice union 13 in the described valve body 1, said orifice union 13 comprises flap 131 and valve seat 132, and flap 131 is connected setting with valve rod 2; Described orifice union 13 also comprises strangling head 134; Strangling head 134 and flap 131 are connected and are arranged at the opposite side of relative valve rod 2; Throttling surface overlaying cemented carbide or sprayed wc at strangling head 134; Make that strangling head 134 is more durable in use, a side of said flap 131 relative strangling heads 134 is provided with depressed part 1311, and depressed part 1311 is round table-like; Flap 131 is provided with at least two equalizing orifices 1312, and equalizing orifice 1312 is arranged at the both sides of relative valve rod 2 respectively; Valve seat 132 and strangling head 134 and all suitable setting of flap 131, and valve seat 132 is being provided with sealing surface 1323,1324 with strangling head 134 and flap 131 suitable positions, and said valve seat 132 be to seal firmly with the sealing surface 1323 of strangling head 134 contact position; Said valve seat 132 is that hard sealing and soft seal seal simultaneously with the sealing surface 1324 of flap 131 contact position; And described soft seal is a male seal projection, and soft seal is a rubber material, the big good seal of elasticity; And be male seal projection; Satisfy the function that is not blown away, seal pile-up welding hard alloy or sprayed wc face firmly, satisfy high pressure air, liquid medium " zero leakage " by medium;
Said valve body 1 is connected with bottom 4; Valve body 1 places bottom 4 tops; The position of the snout cavity 11 relative bottoms 4 of said valve body 1 is provided with the import noise reduction and shrouds 134; The import noise reduction shrouds 134 and is provided with restriction 1341 import noise reductions to shroud 134 mainly be the noise that is used for reducing the stop valve working procedure, and the setting of restriction 1341 also can be strengthened restriction effect;
The outlet noise reduction shroud 135 be arranged at valve body 1 outlet plenum 12, and the outlet noise reduction shrouds 135 and is adjacent to setting with flap 131, valve body 1; Flap 131 is provided with twice O shape circle 1313 shrouding 135 the position of being close to setting with the outlet noise reduction, is provided with storage slag chute 1314 between the twice O shape circle 1313; The outlet noise reduction shroud 135 be provided with the outlet noise reduction shroud restriction 1351.The import noise reduction shroud 134 with the outlet noise reduction shroud 135 belong to orifice union 13 together a part.
Claims (7)
1. a high pressure noise reduction vent stop valve comprises valve rod and the valve body that is provided with snout cavity and outlet plenum, is provided with orifice union in the described valve body; Said orifice union comprises flap and valve seat; It is characterized in that: described orifice union also comprises strangling head, and flap is connected setting with valve rod, and flap is provided with at least two equalizing orifices; Equalizing orifice is arranged at the both sides of relative valve rod respectively; Strangling head is connected and is arranged at the opposite side of relative valve rod with flap, valve seat and the suitable setting of strangling head Spielpassung, valve seat and flap, and corresponding position is provided with sealing surface between valve seat and strangling head, valve seat and the flap.
2. high pressure noise reduction vent stop valve according to claim 1; It is characterized in that: said valve seat be hard sealing with the sealing surface of strangling head contact position; The sealing surface of said valve seat and flap contact position is hard sealing and the soft seal sealing that matches, and described soft seal is a male seal projection.
3. high pressure noise reduction vent stop valve according to claim 1; It is characterized in that: said orifice union also includes the outlet noise reduction that is arranged on outlet plenum and shrouds; Said outlet noise reduction shrouds and places between flap and the valve body; And be adjacent to setting with flap, valve body, said outlet noise reduction shroud be provided with the outlet noise reduction shroud restriction.
4. high pressure noise reduction vent stop valve according to claim 1 and 2 is characterized in that: a side of the relative strangling head of said flap is provided with depressed part, and depressed part is round table-like.
5. high pressure noise reduction vent stop valve according to claim 3 is characterized in that: flap is provided with the storage slag chute being provided with twice O shape circle with the position of being close to setting shrouded of outlet noise reduction between the twice O shape circle.
6. according to claim 1 or 2 or 3 described high pressure noise reduction vent stop valves; It is characterized in that: said valve body is connected with bottom; Valve body places the bottom top, and the position of the relative bottom of snout cavity of said valve body is provided with the import noise reduction and shrouds, and the import noise reduction shrouds and is provided with restriction.
7. according to claim 1 or 2 or 3 described high pressure noise reduction vent stop valves, it is characterized in that: said valve body is connected with valve gap, and the relative valve rod of valve gap place is provided with grease pouring valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203555507U CN202252041U (en) | 2011-09-21 | 2011-09-21 | High-pressure noise-reduction emptying stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203555507U CN202252041U (en) | 2011-09-21 | 2011-09-21 | High-pressure noise-reduction emptying stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252041U true CN202252041U (en) | 2012-05-30 |
Family
ID=46113284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203555507U Expired - Lifetime CN202252041U (en) | 2011-09-21 | 2011-09-21 | High-pressure noise-reduction emptying stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252041U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315170A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve clack for throttling stop emptying valve |
| CN104315169A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Rapidly positioned and mounted throttling stop emptying valve clack component |
| CN104358883A (en) * | 2014-11-18 | 2015-02-18 | 自贡自高阀门有限公司 | Compression ring for improved throttling check emptying valve |
| CN106224572A (en) * | 2016-09-20 | 2016-12-14 | 合肥通用机械研究院 | Double spool double-sealing face regulation valve |
| CN108561572A (en) * | 2018-06-03 | 2018-09-21 | 哈电集团哈尔滨电站阀门有限公司 | New triple sealing scouring-proof stop valve |
| CN110107735A (en) * | 2019-05-15 | 2019-08-09 | 无锡海力自控工程有限公司 | A kind of T-type shut-off valve |
| CN111520482A (en) * | 2020-05-08 | 2020-08-11 | 合肥通用机械研究院有限公司 | Emptying stop valve |
| CN112503185A (en) * | 2020-09-21 | 2021-03-16 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Self-adaptive leak-proof side valve |
-
2011
- 2011-09-21 CN CN2011203555507U patent/CN202252041U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315170A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve clack for throttling stop emptying valve |
| CN104315169A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Rapidly positioned and mounted throttling stop emptying valve clack component |
| CN104358883A (en) * | 2014-11-18 | 2015-02-18 | 自贡自高阀门有限公司 | Compression ring for improved throttling check emptying valve |
| CN106224572A (en) * | 2016-09-20 | 2016-12-14 | 合肥通用机械研究院 | Double spool double-sealing face regulation valve |
| CN108561572A (en) * | 2018-06-03 | 2018-09-21 | 哈电集团哈尔滨电站阀门有限公司 | New triple sealing scouring-proof stop valve |
| CN110107735A (en) * | 2019-05-15 | 2019-08-09 | 无锡海力自控工程有限公司 | A kind of T-type shut-off valve |
| CN111520482A (en) * | 2020-05-08 | 2020-08-11 | 合肥通用机械研究院有限公司 | Emptying stop valve |
| CN111520482B (en) * | 2020-05-08 | 2022-02-11 | 合肥通用机械研究院有限公司 | Emptying stop valve |
| CN112503185A (en) * | 2020-09-21 | 2021-03-16 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Self-adaptive leak-proof side valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |