CN2929396Y - Flow isolation safety control valve - Google Patents
Flow isolation safety control valve Download PDFInfo
- Publication number
- CN2929396Y CN2929396Y CN 200620129703 CN200620129703U CN2929396Y CN 2929396 Y CN2929396 Y CN 2929396Y CN 200620129703 CN200620129703 CN 200620129703 CN 200620129703 U CN200620129703 U CN 200620129703U CN 2929396 Y CN2929396 Y CN 2929396Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- safety control
- shuttle
- control valve
- 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 provides an isolating safety control valve comprising a valve body, wherein one end of the body is an entrance, and the other end is an exit, a flow passage is provided in the body, and the flow passage is provided with a slide valve with a through-hole, an axial support with one end connected with a valve disk is provided near the entrance of the valve, a sealing element is provided at the jointed place of the axial support and the valve disk, and the diameter of the through-hole on the slide valve is smaller than the external diameter of the connecting end-face of the axial support and the valve disk. The utility model with the controlled flow passage provided in the valve body through engaging with other structures can change the area of the flow passage, thereby solving the disadvantages of the prior art.
Description
Technical field
The utility model relates to valve, is a kind of every the stream Safety control valve.
Background technique
Usually, the adjustment of ducted pressure, flow and other fluid parameters is finished by pilot valve.Control valve is regulated flow, thereby makes flow or pressure reach specified value.Above-mentioned control valve should have the external impetus energy, controller, electronic instrument or computerization control system such as power supply, pressurized air, so that performance control function.
Common Safety control valve, the general equal irregular oscillation that can't prevent or alleviate water hammer effect or prevent valve, and not gasproof erosion.
The encapsulating method of most of common Safety control valves is: between the Sealing of valve, be pressed into polymer.This method is easy to cause wearing and tearing especially, and valve when work, and resistance is bigger.
Summary of the invention
The purpose of this utility model is, provides that a kind of it offers a runner that can limit in valve body every the stream Safety control valve, by with the cooperating of other structure, can change the area of runner, thereby reach the purpose that solves the prior art deficiency.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of every stream Safety control valve, comprise valve body, an end of valve body for the inlet, the other end is outlet, be provided with a runner in the valve body, shuttle is installed in the runner, shuttle has through hole, the close entry end installation shaft of valve body is to bearing, axially bearing one end is connected with valve disc, and axially Sealing is installed in the joint of bearing and valve disc, the end face external diameter that the through-hole diameter on the shuttle is connected with valve disc less than axial bearing.The stepped shaft flange of the oriented outer lug of shuttle outer wall, the length of flange extend to the outlet end of shuttle always near the shuttle middle part.Valve body has outside projection, and the diameter of high spot is the maximum diameter of valve body.Projection one side of valve body is provided with inside projection.Axially bearing is cylindric near the part of entry end, and axially the outside of close valve disc one side of bearing is the arcuation to outer lug, and axially the arcuation joint cylindric and to outer lug of bearing is that curve is connected.Inside protruding both sides are offered first through hole and second through hole respectively on the valve body.First grease nipple and second grease nipple are installed on the valve body.Valve body is offered groove near on the outlet end inwall, and Sealing is installed in the groove.The top of valve disc is taper, and the bottom is cylindrical, and cylindrical and joint taper is stepped.
Advantage of the present utility model is: because the hydrodynamic pressure of entrance and exit can make the shuttle in the runner move, thereby can form different Flow areas, make to have chain of command on the shuttle, be convenient to the user and limit pressure; Do not need external power supply control; Can avoid the irregular oscillation of the water hammer effect and the valve of common valve; Friction loss is minimum; Simple in structure, operation easily, efficient is high.
Description of drawings
Embodiment
The contrast accompanying drawing is described further the utility model:
Described in the utility model a kind of every the stream Safety control valve, comprise valve body 2, one end of valve body 2 is inlet 25, the other end is outlet 6, be provided with a runner 1 in the valve body 2, shuttle 11 is installed in the runner 1, shuttle 11 moves in runner under fluid pressure action, shuttle 11 has through hole 21, be used for fluid and pass through valve body 2 close entry end installation shaft to bearing 26, axially bearing 26 1 ends are connected with valve disc 27, axially the joint of bearing 26 and valve disc 27 installation Sealing 23, bolt 24 is fixedlyed connected axial bearing 26 with valve disc 27, the end face external diameter that through hole 21 diameters on the shuttle 11 are connected with valve disc 27 less than axial bearing 26.The stepped shaft flange 16 of the oriented outer lug of shuttle 11 outer walls, the length of flange 16 extend to the outlet end 7 of shuttle always near the shuttle middle part.Make and form gap 12 between valve body 2 and the flange 16.Valve body 2 has outside projection 28, and the diameter at protruding 28 places is maximum diameters of valve body 2.The projection 28 of valve body 2 is corresponding with the protruding arcuation position of axial bearing 26.Projection 28 1 sides of valve body 2 are provided with inside projection 17.Axially bearing 26 is cylindric near the part of entry end, and axially the outside of bearing 26 close valve disc 27 1 sides is the arcuations to outer lug, and axially the arcuation joint cylindric and to outer lug of bearing 26 is that curve is connected.Inside projection 17 both sides are offered first through hole 20 and second through hole 13 respectively on the valve body 2.First grease nipple 3 and second grease nipple 4 are installed on the valve body 2.Valve body 2 is offered groove near on the outlet end inwall, and Sealing 9 is installed in the groove.The top of valve disc 27 is tapers 22, and the bottom is cylindrical, and cylindrical and joint taper is stepped.
When the utility model uses, valve body 2 is fixed on desired location, shuttle 11 slippage in valve body 2 under fluid pressure action of installing in the valve body 2, thus form different Flow areas.When the entry end of shuttle 11 abuts against on the valve seat of being made up of valve disc 27, axial bearing 26 and Sealing 23, then stoped fluid through through hole 21, make valve be in closed condition.When forming the space between through hole 21 entry ends and the valve seat, fluid passes through, and valve is in opening state.To reduce to outlet 6 pressure be the effect of shuttle 11 relative positions the valve body 2 from entering the mouth 25, thereby form different Flow areas on the valve seat.Its structural feature is that inlet 25 and outlet 6 pressure keep the constant compression force ratio, be convenient to carry out various every stream, control or play and guarantee safe effect.Its working principle is: when fluid passed valve body 2, shuttle 11 carried out slippage, when inlet 25 fluid pressure action during in the entry end of shuttle 11, produced opening force, otherwise, when the outlet end of the fluid pressure action shuttle 11 of outlet 6, then produce the power of closing.When the pressure that acts on above-mentioned two end faces is different, shuttle 11 can carry out slippage automatically, till two kinds of power of opposition are cancelled each other, this and flow rate of fluid have nothing to do, pressure reduces by fixed ratio, the entrance face of shuttle 11 and the setting pressure of exit end face are equal, when unlatching or cut-off valve, and above-mentioned constant rate.
The shape of valve disc 27 described in the utility model has played better action, the irregular oscillation in the time of can preventing low discharge effectively.Because through hole 21 matches with the conical surface of valve disc 27, during stroke in opening process about the initial 20%-30% of shuttle 11 slippages, can improve flow velocity gradually, in closing closed procedure, when the stroke of shuttle 11 slippages to about the last 20%-30%, can little by little reduce flow velocity, can prevent that like this flow, pressure from undergoing mutation, and can eliminate irregular oscillation.In addition, the shape of valve disc 27 can also be eliminated cavitation erosion etc.The structure of valve seat can alleviate or prevent to reduce the water hammer effect that is caused because of flow greatly, also help to prevent loose, thereby keep waterproof state, can also improve the seal effectiveness after shuttle 11 meshes with Sealing 23 by reducing the useful area that inlet pressure works.
Second through hole 13 of the present utility model links to each other with pressure source independently, the user can adjust it, thereby reach the purpose of control valve running, first through hole 20 and second through hole 13 interconnect by low pressure ball valve 19, low pressure ball valve 19 joins via tamper resistant needle-valve 15 and the joint 14 that is positioned on second through hole 13, and an aperture is arranged on joint 14 1 ends.5 is exit portion of runner among the figure, the 8th, and the step on the valve body 2, the 10th, Sealing is installed in the groove of offering on valve body 2 inwalls, and the 18th, Sealing is installed in the groove of offering on valve body 2 inwalls.
Claims (9)
1, a kind of every the stream Safety control valve, comprise valve body (2), it is characterized in that: an end of valve body (2) is inlet (25), the other end is outlet (6), be provided with a runner (1) in the valve body (2), shuttle (11) is installed in the runner (1), shuttle (11) has through hole (21), the close entry end installation shaft of valve body (2) is to bearing (26), axially bearing (26) one ends are connected with valve disc (27), axially bearing (26) is installed Sealing (23) with the joint of valve disc (27), the end face external diameter that through hole (21) diameter on the shuttle (11) is connected with valve disc (27) less than axial bearing (26).
2, according to claim 1 a kind of every the stream Safety control valve, it is characterized in that: the stepped shaft flange (16) of the oriented outer lug of shuttle (11) outer wall, the length of flange (16) extend to the outlet end (7) of shuttle always near the shuttle middle part.
3, according to claim 1 a kind of it is characterized in that: valve body (2) has outside projection (28) every the stream Safety control valve, and the diameter located of projection (28) is the maximum diameter of valve body (2).
4, according to claim 3 a kind of every the stream Safety control valve, it is characterized in that: projection (28) one sides of valve body (2) are provided with inside projection (17).
5, according to claim 1 a kind of every the stream Safety control valve, it is characterized in that: axially bearing (26) is cylindric near the part of entry end, axially the outside of close valve disc (27) one sides of bearing (26) is the arcuations to outer lug, and axially the arcuation joint cylindric and to outer lug of bearing (26) is that curve is connected.
6, according to claim 4 a kind of every the stream Safety control valve, it is characterized in that: valve body (2) is gone up inside projection (17) both sides and is offered first through hole (20) and second through hole (13) respectively.
7, according to claim 1,2,3,4,5 or 6 each is described a kind of every the stream Safety control valve, it is characterized in that: valve body (2) go up to be installed first grease nipple (3) and second grease nipple (4).
8, according to claim 1,2,3,4,5 or 6 each is described a kind of every the stream Safety control valve, it is characterized in that: valve body (2) is installed Sealing (9) near offering groove on the outlet end inwall in the groove.
9, according to claim 1 a kind of it is characterized in that: the top of valve disc (27) is taper (22), and the bottom is cylindrical every the stream Safety control valve, and cylindrical and joint taper are stepped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620129703 CN2929396Y (en) | 2006-07-13 | 2006-07-13 | Flow isolation safety control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620129703 CN2929396Y (en) | 2006-07-13 | 2006-07-13 | Flow isolation safety control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929396Y true CN2929396Y (en) | 2007-08-01 |
Family
ID=38307778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620129703 Expired - Fee Related CN2929396Y (en) | 2006-07-13 | 2006-07-13 | Flow isolation safety control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929396Y (en) |
-
2006
- 2006-07-13 CN CN 200620129703 patent/CN2929396Y/en not_active Expired - Fee Related
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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: 20070801 Termination date: 20140713 |
|
| EXPY | Termination of patent right or utility model |