CN2150407Y - Cage type single-seated valve - Google Patents
Cage type single-seated valve Download PDFInfo
- Publication number
- CN2150407Y CN2150407Y CN 93208230 CN93208230U CN2150407Y CN 2150407 Y CN2150407 Y CN 2150407Y CN 93208230 CN93208230 CN 93208230 CN 93208230 U CN93208230 U CN 93208230U CN 2150407 Y CN2150407 Y CN 2150407Y
- Authority
- CN
- China
- Prior art keywords
- valve
- cage
- seat
- spool
- type single
- 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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- Details Of Valves (AREA)
Abstract
The utility model relates to a cage type single-seated valve for centering a valve core and stabilizing the work. A valve cage (8) with a window is arranged between the upper valve bonnet (4) of the single-seated valve and a valve seat (11) and the upper part of the valve cage and a valve stem (2) (all valve cores are closed) are provided with an annular chamber, and simultaneously a sealing gasket (5) is arranged between the valve cage and the upper valve bonnet (4). The cooperation of different valve cores, valve seats and valve cages can make the valve with different characteristics for working under high, middle and low pressure difference. Under the condition of high and middle pressure difference, the valve cores and the valve seats have the function of voltage reduction and the valve cores and the valve cages also have the function of voltage reduction. The valve can reduce the cavitation and erosion of medium toward the valve core, the seat, and the cage to increase the service life of the valve.
Description
The utility model relates to a kind of cage type single seat valve.
In existing single-seat valve representational as shown in Figure 3 the single seat angle valve and straight-through single-seat valve shown in Figure 6.Wherein the last guide sleeve (12) of single seat angle valve be embedded in bonnet (4) cavity inner sleeve on the Cylinder of spool (10) because the spool Cylinder is longer, increases the centering difficulty be installed, general being difficult for and valve seat centering; When under the High Pressure Difference condition, easily make the spool vibration during little aperture, fragile spool and valve seat (11); Simultaneously this valve in use, the sealing part at spool and valve seat falls in the pressure major part, easily causes cavitation to this place, washes away, thereby also damage the spool valve seat.In addition, straight-through single-seat valve increases cost owing to have upper and lower guide sleeve (12,13), bottom flange (21), drainage screw (22), inclined hole (19,20) etc. to make complex structure.
The purpose of this utility model is to avoid deficiency in the above-mentioned prior art, and a kind of make spool and the easy centering of valve seat are provided, stable working, designs simplification and anti-cavitation and the cage type single seat valve that washes away.
The utility model can reach by the following technical programs: in valve body (9), the valve cage (8) of windowing is housed between bonnet (4) and valve seat (11), the spool that can slide up and down (10) is housed in the valve cage (8), the bottom cone of spool (10) puts in valve seat (11) chamber, valve cage top and valve rod (2) assemble and form annular chamber between it, between valve cage (8) and the bonnet valve cage sealing gasket (5) is housed simultaneously.
Above-mentioned bonnet and have dividing plate (23) between valve cage is housed.Valve cage can be a plurality of circumferential windows of having of upper and lower symmetry, also can only have circumferential a plurality of window in the valve cage bottom.Spool can have longitudinal balance duct (15) in the body.Can be embedded with seal ring (14) at valve core, valve seat can be installed on the dividing plate by thread connecting mode, and dividing plate and bottom flange can be the one foundry goods simultaneously.
Fig. 1 is the utility model complete section diagrammatic sketch (accompanying drawing makes an abstract), and wherein (1) is packing, and (3) are bolts, and (16) are inlet flanges, and (17) are outlet(discharge) flanges;
Fig. 2 is Fig. 1 embodiment 1 complete section diagrammatic sketch;
Fig. 3 is the complete section diagrammatic sketch before Fig. 1 does not improve;
Fig. 4 is Fig. 1 embodiment 2 complete section diagrammatic sketch;
Fig. 5 is Fig. 4 embodiment complete section diagrammatic sketch, and wherein (6) are that sealing gasket, (7) are wound gaskets, and (24) are sealing gaskets;
Fig. 6 is Fig. 4 comparison diagram, and wherein (13) are following guide sleeves;
The utility model is described in further detail below in conjunction with accompanying drawing: in conjunction with Fig. 1 comparison diagram 3, between the bonnet (4) of single-seat valve such as single seat angle valve and straight-through single-seat valve and valve seat (11), be embedded with the valve cage (8) of windowing, valve cage (8) and valve core are for movingly, and spool bottom cone can put in the valve support chamber; Valve cage top and valve rod (2) assemble and form annular chamber between it, the upper window of valve cage is that this chamber is communicated with the valve cage space outerpace, but the circumferential window in valve core shutoff valve cage bottom then when spool and valve seat contract fully is embedded with sealing gasket (5) between valve cage (8) and bonnet (4) simultaneously.
Above-mentioned bonnet and have dividing plate (23) between be embedded with valve cage (8) (shown in Fig. 3,4).
The spool in no balance duct (15) can with have the up and down supporting use of valve cage (shown in Fig. 1,4) of symplex structure; The spool in balance duct (15) and the supporting use of valve cage that only has circumferential a plurality of windows in the bottom are arranged, and be embedded with seal ring (14) (shown in Fig. 2,5) at valve core.
The utility model working principle is such, with valve inlet flange (16), outlet(discharge) flange (17) links to each other with pipeline respectively, valve shown in the figure is in the complete shut-down position, the upper and lower chamber of separating valve seat with line contact sealing between spool (10) and the valve seat (11) does not have the MEDIA FLOW mistake between making it, with advancing the just bottom valve cage opening of shutoff valve cage (8) of valve core, that is to say that the circulation area of this two places medium is zero.When the certain aperture of needs, to move certain stroke on the valve rod (2), and then spool (10) is moved on also, lead by valve cage (8), circulation area between spool (10) and the valve seat (11) is increased to certain value by zero, the Cylinder of spool (10) is opened the opening of the valve cage (8) of certain circulation area simultaneously, each stroke corresponding to valve rod (2), this two place all has fixing circulation area corresponding with it, design different spools, valve seat, valve cage can obtain different circulation areas, promptly obtains different valve characteristics, when using as dropping valve, at spool and valve seat, can produce different pressure between spool and the valve cage and fall, this is decided by the structure when of both circulation areas.By moving up and down of valve rod (2), can change the two circulation area, the resistance coefficient that this has just changed valve, reach regulate flow through what purpose of medium.
The utility model has the advantages that spool is weak point than single-seat valve, utilize the valve cage guiding, cancelled fairlead the valve height overall is reduced, save raw material, leakage rate is little during complete shut-down, and vibration is little during little aperture; Valve cage can be upper and lower full symmetric structure, but the tuning use increases service time, and spool can have balance duct minimizing valve to be subjected to out-of-balance force; Design different spools, valve seat, valve cage can be fit to the different occasions of high, medium and low pressure reduction, can make valve have different characteristics; When using as dropping valve, can realize that in valve two-stage reduces, a valve can play the hypotensive effect of two valves, when High Pressure Difference, greatly reduces medium to spool, valve seat, and the washing away of valve cage, cavitation erosion etc. increase service life of valve.
Claims (7)
1, a kind of cage type single seat valve, it constitutes on single-seat valve, its feature: be embedded with the valve cage (8) of windowing between bonnet (4) and valve seat (11), the spool that can slide up and down (10) is housed in the valve cage (8), the bottom Cylinder of spool (10) can put in valve seat (11) chamber.
2, cage type single seat valve as claimed in claim 1, its feature: can bonnet (4) and have dividing plate (23) between valve cage (8) is housed.
3, cage type single seat valve as claimed in claim 1 or 2, its feature: valve cage can be laterally zygomorphic a plurality of circumferential windows that have.
4, cage type single seat valve as claimed in claim 1 or 2, its feature: a plurality of circumferential windows are arranged at valve cage (8) bottom.
5, cage type single seat valve as claimed in claim 1 or 2, its feature: spool (10) can have longitudinal balance duct (15) in the body.
6, cage type single seat valve as claimed in claim 1 or 2, its feature: can between valve core and valve cage, be embedded with seal ring (14).
7, single-seat valve as claimed in claim 2, its feature: dividing plate (23) can be the one foundry goods with bottom flange (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93208230 CN2150407Y (en) | 1993-03-30 | 1993-03-30 | Cage type single-seated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93208230 CN2150407Y (en) | 1993-03-30 | 1993-03-30 | Cage type single-seated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2150407Y true CN2150407Y (en) | 1993-12-22 |
Family
ID=33790741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93208230 Expired - Fee Related CN2150407Y (en) | 1993-03-30 | 1993-03-30 | Cage type single-seated valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2150407Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387873C (en) * | 2000-07-28 | 2008-05-14 | 株式会社山武 | Single seat shaped valve device |
| CN108799525A (en) * | 2018-09-10 | 2018-11-13 | 陕西博菲特流体控制装备制造有限公司 | Needle-like pressure reducing valve pressure reduction structure with double centering guide frames |
-
1993
- 1993-03-30 CN CN 93208230 patent/CN2150407Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387873C (en) * | 2000-07-28 | 2008-05-14 | 株式会社山武 | Single seat shaped valve device |
| CN108799525A (en) * | 2018-09-10 | 2018-11-13 | 陕西博菲特流体控制装备制造有限公司 | Needle-like pressure reducing valve pressure reduction structure with double centering guide frames |
| CN108799525B (en) * | 2018-09-10 | 2024-02-23 | 陕西博菲特流体控制装备制造有限公司 | Needle type pressure reducing valve pressure reducing structure with double centering guide structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |