CN203214897U - High-pressure self-sealing check valve with low flow resistance - Google Patents
High-pressure self-sealing check valve with low flow resistance Download PDFInfo
- Publication number
- CN203214897U CN203214897U CN 201320143896 CN201320143896U CN203214897U CN 203214897 U CN203214897 U CN 203214897U CN 201320143896 CN201320143896 CN 201320143896 CN 201320143896 U CN201320143896 U CN 201320143896U CN 203214897 U CN203214897 U CN 203214897U
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- valve
- valve body
- flap
- described valve
- stop
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Abstract
The utility model discloses a high-pressure self-sealing check valve with low flow resistance. The check valve comprises a valve body, a valve clack arranged in the valve body, a valve rod connected to the valve clack, and a valve cover which is arranged above the valve body and sleeved on the valve rod, wherein a valve base is arranged between the valve clack and the valve body, the valve rod extends out of the valve body, and a sealing device is arranged between the valve body and the valve rod. The high-pressure self-sealing check valve with low flow resistance, provided by the utility model, is good in sealing property, safer and more reliable in use and longer in service life.
Description
Technical field
The utility model relates to a kind of stop valve, specifically, relates to a kind of high pressure in fluid control field that is applied to hanging down flow resistance selfsealings stop valve.
Background technique
Along with the raising of China's industrial expansion and manufacturing industry level, the application of valve products is also in continuous expansion, makes the valve industry require also in further raising the quality of valve, purposes etc.
Stop valve is the valve that moves along the valve seat center line by flap, and its open-shut device is the flap of stopper, and sealing surface is plane or the conical surface.Because this special forms of motion of flap, make port and the proportional relation of flap of valve seat, be suitable for very much and to the adjusting of flow.It is short, simple in structure that stop valve opens and closes stroke, and anufacturability is good, and is applied widely.
Though stop valve is of a great variety in the market, during long-time running, its sealability etc. are not good enough, therefore, can not guarantee its sealability under high-drag under the big environment of fluid resistance, can not satisfy quality requirement simultaneously.
The model utility content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of and has high sealing performance, is applicable to that high pressure under the high pressure is with low flow resistance selfsealings stop valve.
For achieving the above object, the technical solution of the utility model is as follows: a kind of high pressure is with hanging down flow resistance selfsealings stop valve, comprise valve body, be arranged at described valve inner flap, connect described flap valve rod, be arranged at described valve body top and be sheathed on valve gap on the described valve rod, be provided with valve seat between described flap and valve body; Described valve rod stretches out in outside the described valve body; Be provided with seal arrangement between described valve body and the valve rod.
Further, described valve body both sides are provided with for the entry end that inserts fluid with for the outlet end of sending fluid, and described entry end, outlet end and described valve rod form Y type runner.
Further, described flap and described flap are tightly connected, and both are interference fit.
Further, sealing place of described flap is recessed formula structure, and described valve base sealing place is oblique protruding formula lip formula structure.
Further, described valve seat is embedded on the described valve body.
Further, be provided with locking device between described valve gap and described valve body.
Further, be provided with the dynamic load seal arrangement between described valve gap and described valve rod.
Further, described stop valve also comprises the drive unit that drives the described valve rod of connection.
Further, described valve seat material is stellite.
Adopt technique scheme, the beneficial effect of technical solutions of the utility model is: a kind of high pressure is with hanging down flow resistance selfsealings stop valve, valve flowing channel adopts y-type structure, make valve flowing channel and sprue form oblique line shape, when having reduced work in the media flow process to the destruction of valve body, and reduced the pressure loss; The sealing surface of flap adopts recessed formula structure, and the sealing surface of valve seat adopts oblique protruding formula lip formula structure, adopts interference fit between the two, makes during work that the applying of flap and valve seat is tightr, makes whole valve seal performance good, is applicable to hyperbaric environment; The groove structure that arranges in the valve body makes valve seat tightly embed valve inner, can not be subjected to displacement; After flap and valve seat formation sealing, under pressure, valve seat and flap can fit tightly again, improve its sealability, and be also safer, reliable to the control of whole medium, long service life.
Description of drawings
In order to be illustrated more clearly in the technological scheme in the utility model embodiment technology, to do to introduce simply to the accompanying drawing of required use in embodiment's technical description below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation that a kind of high pressure of the utility model is used low flow resistance selfsealings stop valve;
Fig. 2 is that a kind of high pressure of the utility model cooperates schematic representation with low flow resistance selfsealings stop valve flap and valve seat.
Wherein, 1, valve body, 2, flap, 3, valve rod, 4, valve gap, 5, valve seat, 6, seal arrangement, 7, entry end, 8, outlet end, 9, locking device, 10, the dynamic load seal arrangement, 11, handwheel.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
A kind of high pressure is with low flow resistance selfsealings stop valve, comprise valve body 1, be arranged at valve body 1 inside flap 2, connect flap 2 valve rod 3, be arranged at valve body 1 top and be sheathed on valve gap 4 on the valve rod 3,1 of flap 2 and valve body are provided with valve seat 5; Valve rod 3 stretches out in outside the valve body 1; Be provided with seal arrangement 6 between valve body 1 and the valve rod 3.
1 of valve gap 4 and valve body are provided with locking device 9, and 3 of valve gap 4 and valve rods are provided with dynamic load seal arrangement 10, and both are used in combination, and seal more reliable.
Introduce working principle of the present utility model below: during use, the entry end 7 of valve body 1 both sides is connected with pipeline respectively with outlet end 8, and when needs during by the circulation of ducted medium, actuate valve stem 3 drives flaps 2 and moves to valve seat 5 directions, arrive certain position, flap 2 fits tightly with valve seat 5; After flap 2 and valve seat 5 formation sealings, because valve body 1 pressure inside effect, flap 2 and valve seat 5 can form secondary seals, improve its sealability greatly, reach the effect that circulates by medium, also can not reveal simultaneously.
Stop valve also comprises the drive unit that drives connection valve rod 3; Drive unit is handwheel 11 in the present embodiment, and except handwheel 11, drive unit also can be electric driving mechanism.
The valve seat material is stellite.
Pass through technique scheme, the beneficial effect of technical solutions of the utility model is: a kind of high pressure is with hanging down flow resistance selfsealings stop valve, valve flowing channel adopts y-type structure, make valve flowing channel and sprue form oblique line shape, when having reduced work in the media flow process to the destruction of valve body, and reduced the pressure loss; The sealing surface of flap adopts recessed formula structure, and the sealing surface of valve seat adopts oblique protruding formula lip formula structure, adopts interference fit between the two, makes during work that the applying of flap and valve seat is tightr, makes whole valve seal performance good, is applicable to hyperbaric environment; The groove structure that arranges in the valve body makes valve seat tightly embed valve inner, can not be subjected to displacement; After flap and valve seat formation sealing, under pressure, valve seat and flap can fit tightly again, improve its sealability, and be also safer, reliable to the control of whole medium, long service life.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a high pressure is with hanging down flow resistance selfsealings stop valve, it is characterized in that, comprise valve body, be arranged at described valve inner flap, connect described flap valve rod, be arranged at described valve body top and be sheathed on valve gap on the described valve rod, be provided with valve seat between described flap and valve body; Described valve rod stretches out in outside the described valve body; Be provided with seal arrangement between described valve body and the valve rod.
2. stop valve according to claim 1 is characterized in that, described valve body both sides are provided with for the entry end that inserts fluid with for the outlet end of sending fluid, and described entry end, outlet end and described valve rod form Y type runner.
3. stop valve according to claim 2 is characterized in that, described flap and described flap are tightly connected, and both are interference fit.
4. stop valve according to claim 3 is characterized in that, sealing place of described flap is recessed formula structure, and described valve base sealing place is oblique protruding formula lip formula structure.
5. stop valve according to claim 4 is characterized in that, described valve seat is embedded on the described valve body.
6. stop valve according to claim 5 is characterized in that, is provided with locking device between described valve gap and described valve body.
7. stop valve according to claim 6 is characterized in that, is provided with the dynamic load seal arrangement between described valve gap and described valve rod.
8. stop valve according to claim 7 is characterized in that, described stop valve also comprises the drive unit that drives the described valve rod of connection.
9. stop valve according to claim 8 is characterized in that, described valve seat material is stellite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320143896 CN203214897U (en) | 2013-03-27 | 2013-03-27 | High-pressure self-sealing check valve with low flow resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320143896 CN203214897U (en) | 2013-03-27 | 2013-03-27 | High-pressure self-sealing check valve with low flow resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214897U true CN203214897U (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320143896 Expired - Fee Related CN203214897U (en) | 2013-03-27 | 2013-03-27 | High-pressure self-sealing check valve with low flow resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214897U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074985A (en) * | 2013-03-27 | 2014-10-01 | 苏州科迪流体控制设备有限公司 | Low-flow resistance self-sealing stop valve for high pressure |
| CN111006024A (en) * | 2019-12-11 | 2020-04-14 | 南通国电阀门科技有限公司 | High-pressure Y-shaped double-acting isolation valve for nuclear power |
-
2013
- 2013-03-27 CN CN 201320143896 patent/CN203214897U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074985A (en) * | 2013-03-27 | 2014-10-01 | 苏州科迪流体控制设备有限公司 | Low-flow resistance self-sealing stop valve for high pressure |
| CN111006024A (en) * | 2019-12-11 | 2020-04-14 | 南通国电阀门科技有限公司 | High-pressure Y-shaped double-acting isolation valve for nuclear power |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 |