CN203189750U - Washing-resisting universal sealing strop valve - Google Patents
Washing-resisting universal sealing strop valve Download PDFInfo
- Publication number
- CN203189750U CN203189750U CN 201320124187 CN201320124187U CN203189750U CN 203189750 U CN203189750 U CN 203189750U CN 201320124187 CN201320124187 CN 201320124187 CN 201320124187 U CN201320124187 U CN 201320124187U CN 203189750 U CN203189750 U CN 203189750U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- valve body
- washing
- clack
- 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 - Lifetime
Links
Images
Landscapes
- Lift Valve (AREA)
- Sliding Valves (AREA)
Abstract
The utility model discloses a washing-resisting universal sealing stop valve which comprises a valve body. A valve rod and a valve seat are arranged in the valve body, the valve body is connected with a valve core, the valve rod penetrates through the valve cover to be connected with the valve body in a matched mode, a valve rod nut is in threaded connection at the upper portion of the valve rod, a handle wheel is fixedly connected at the upper portion of the valve rod nut, graphite fillers are arranged between the valve rod and the valve cover, a hole is formed in the bottom end of the valve rod, a spherical valve clack is arranged in the hole, the spherical valve clack is matched with the valve seat to be sealed, a first flowing channel and a second flowing channel are respectively formed in two sides of the lower portion of the valve body, and a washing-resisting layer is coated on the surface of the spherical valve clack. The washing-resisting layer made of nickel base nanometer powder is coated on the surface of the spherical valve clack, washing-resisting nanometer materials are overlaid on a contact face between the valve seat and the spherical valve clack, and accordingly system sealing performance and stability are guaranteed. In medium washing, the spherical valve clack and the valve seat can form infinite sealing so as to be large in sealing specific pressure and achieve zero leakage. The spherical valve clack is made of high-performance structural ceramic materials so as to be good in self cleanness, strong in corrosion resistance, long in service life and wide in application range.
Description
Technical field
The utility model relates to the boiler blow-off technical field, is specifically related to a kind of anti-universal sealed stop valve that washes away.
Technical background
Existing stop valve comprises valve rod, valve body and the filler between valve rod and valve body, and the lower end of valve rod is provided with flap.When regarding the operation of unlatching or throttle down, valve rod rotates by motor or handwheel, and the valve rod band of spiral lifting flap unlatching or disconnection flow channels.Be that forms such as plane or the conical surface are carried out forced seal to flow channels and the daily flap that generally uses adopts, what the minority stop valve adopted is globe disk.Though spherical than the plane or the conical surface have better sealing effect, but the use occasion of high requirement is arranged for stop valve, when making blowdown valve as surpassing in (surpassing) critical unit boiler, because flap is standing washing away of high-temperature high-pressure steam for a long time, cause flap very easily to be corroded, thereby influence the sealability of stop valve.
The model utility content
The purpose of this utility model is at above-mentioned technical problem, and a kind of anti-universal sealed stop valve that washes away is provided, and the flap of this stop valve is anticorrosive, and anti-scouring capability is strong, and can reach zero leakage, good sealing effect.
For realizing this purpose, designed anti-of the utility model washed away universal sealed stop valve, comprise valve body, be provided with valve rod and valve seat in the valve body, be connected with valve gap on the valve body, valve rod passes valve gap and valve body is connected, the valve rod top Stem Mut that has been threaded, Stem Mut top is fixedly connected with handwheel, is provided with graphite packing between valve rod and the valve body, and the valve rod bottom has the hole, be provided with globe disk in the hole, globe disk and valve seat fitted seal, valve body lower portion both sides have first flow channels and second flow channels, it is characterized in that: described globe disk surface-coated has anti-erosional layer.
Further, the material of described anti-erosional layer is the nickel base nanometer powder.
Further, the material of described globe disk is high performance structure ceramic.
The beneficial effects of the utility model are: adopt the laser paint-on technique in the surface-coated of globe disk the anti-impact brush layer of nickel base nanometer powder, and built-up welding has the antiscour nanometer material on the surface of contact of valve seat and globe disk, has further guaranteed sealing and the stability of system.Globe disk and valve seat form stepless linear sealing when medium washes away, seal pressure is big, can reach zero and reveal.Globe disk adopts high performance structure ceramic material to make, and has good self-cleaning, and anticorrosive erosion resistibility is strong, and long service life is applied widely.Valve body integral body has adopted die forging or whole die sinking multiway forging, the intensity height, and compactness is good.
Description of drawings
Fig. 1 is the overall structure schematic representation of stop valve of the present utility model;
Fig. 2 is the structural representation that globe disk of the present utility model cooperates with valve seat;
Wherein, 1-valve body, 2-valve rod, 3-Stem Mut, 4-handwheel, 5-graphite packing, 6-hole, 7-globe disk, 8-valve seat, 9-anti-erosional layer, 10-bearing, 11-Gland, 12-hold-down grid, 13-filler seat ring, 14-the first flow channels, 15-the second flow channels.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Anti-shown in Fig. 1 ~ 2 washed away universal sealed stop valve, comprise valve body 1, be provided with valve rod 2 and valve seat 8 in the valve body 1, be connected with valve gap on the valve body 1, valve rod 2 passes valve gap and valve body 1 is connected, the valve rod 2 tops Stem Mut 3 that has been threaded, Stem Mut 3 tops are fixedly connected with handwheel 4, be provided with graphite packing 5 between valve rod 2 and the valve body 1, valve rod 2 bottoms have hole 6, are provided with globe disk 7 in the hole 6, globe disk 7 and valve seat 8 fitted seal, both sides, valve body 1 bottom have first flow channels 14 and second flow channels 15, and described globe disk 7 surface-coated have anti-erosional layer 9.
Wherein, valve gap comprises Gland 11 and hold-down grid 12, when valve rod 2 and Stem Mut 3 relative movement, Gland 11 and hold-down grid 12 meeting extruded anisotropic graphite fillers 5, to reach the purpose of axial seal, anti-erosional layer 9 has guaranteed the structural stability of globe disk 7, the working life of having improved flap, increased intensity, made stop valve of the present utility model can adapt to working environment in super (surpassing) critical unit boiler.
In the technique scheme, the material of described anti-erosional layer 9 is the nickel base nanometer powder.The nickel base nanometer powder has very strong corrosion resistance, and hardness is bigger, has further guaranteed the structural stability of system.
In the technique scheme, the material of described globe disk 7 is high performance structure ceramic.Than common ferrous materials, high performance structure ceramic has good self-cleaning, and is anticorrosive strong with scouring capability, guaranteeing the 7 constitutionally stable whiles of globe disk, prolonged the working life of stop valve.
Working procedure of the present utility model is: rotation hand wheel 4, handwheel 4 drive Stem Mut 3 rotations, are provided with bearing 10 between Stem Mut 3 and valve body 1, have further facilitated the rotation of Stem Mut 3, and Stem Mut 3 drives valve rod 2 and rises or descend.When valve rod 2 rose, valve rod 2 drove globe disk 7 and rises, and leaves sealing surface, and when globe disk 7 rose to highest point, medium formed circulation by first flow channels 14 and second flow channels 15.When valve rod 2 descends, valve rod 2 drives globe disk 7 and compresses sealing surface, closing passage, in the surface of contact formation stepless linear sealing of globe disk 7 with valve seat 8, reach good sealing effect, and be provided with graphite packing 5 between valve body 1 and the valve rod 2, fixedly there is filler seat ring 13 bottom of graphite packing 5, graphite packing 5 tops are provided with Gland 11 and hold-down grid 12, when valve rod 2 rises, hold-down grid 12 extruding Glands 11, Gland 11 and filler seat ring 13 extruded anisotropic graphite fillers 5, thereby realize the axial seal of stop valve, guaranteed that further zero of the utility model stop valve reveals.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; any those of ordinary skill in the art are in the disclosed technical scope of the utility model; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.
Claims (3)
1. one kind is anti-ly washed away universal sealed stop valve, comprise valve body (1), be provided with valve rod (2) and valve seat (8) in the valve body (1), valve body is connected with valve gap on (1), valve rod (2) passes valve gap and valve body (1) is connected, valve rod (2) the top Stem Mut (3) that has been threaded, Stem Mut (3) top is fixedly connected with handwheel (4), be provided with graphite packing (5) between valve rod (2) and the valve body (1), valve rod (2) bottom has hole (6), be provided with globe disk (7) in the hole (6), globe disk (7) and valve seat (8) fitted seal, valve body (1) both sides, bottom have first flow channels (14) and second flow channels (15), it is characterized in that: described globe disk (7) surface-coated has anti-erosional layer (9).
2. a kind of anti-universal sealed stop valve that washes away as claimed in claim 1, it is characterized in that: the material of described anti-erosional layer (9) is the nickel base nanometer powder.
3. a kind of anti-universal sealed stop valve that washes away as claimed in claim 1, it is characterized in that: the material of described globe disk (7) is high performance structure ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320124187 CN203189750U (en) | 2013-03-19 | 2013-03-19 | Washing-resisting universal sealing strop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320124187 CN203189750U (en) | 2013-03-19 | 2013-03-19 | Washing-resisting universal sealing strop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189750U true CN203189750U (en) | 2013-09-11 |
Family
ID=49106611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320124187 Expired - Lifetime CN203189750U (en) | 2013-03-19 | 2013-03-19 | Washing-resisting universal sealing strop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203189750U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405895A (en) * | 2014-11-17 | 2015-03-11 | 南通龙源电站阀门有限公司 | Novel stop valve |
| CN107869608A (en) * | 2017-12-11 | 2018-04-03 | 洛阳名力科技开发有限公司 | Stop valve |
| CN107965599A (en) * | 2017-12-11 | 2018-04-27 | 洛阳名力科技开发有限公司 | Shut-off valve |
-
2013
- 2013-03-19 CN CN 201320124187 patent/CN203189750U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405895A (en) * | 2014-11-17 | 2015-03-11 | 南通龙源电站阀门有限公司 | Novel stop valve |
| CN107869608A (en) * | 2017-12-11 | 2018-04-03 | 洛阳名力科技开发有限公司 | Stop valve |
| CN107965599A (en) * | 2017-12-11 | 2018-04-27 | 洛阳名力科技开发有限公司 | Shut-off valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203322379U (en) | Three-way fixed four-valve-seat hard-seal ball valve | |
| CN203189750U (en) | Washing-resisting universal sealing strop valve | |
| CN105508720A (en) | Corrugated pipe stop valve for photo-thermal electricity generation fused salt | |
| CN201259012Y (en) | Automatic seal stop valve | |
| CN205401768U (en) | Take fin straight -flow Y type stop valve | |
| CN202451866U (en) | Improved soft sealing gate valve | |
| CN202195103U (en) | Ball valve of metal hard sealing body valve seat | |
| CN203146851U (en) | Super supercritical forged-steel stop valve | |
| CN200940702Y (en) | Metal hard sealing ball valve | |
| CN213954356U (en) | Reinforced low-temperature bellows sealing stop valve | |
| CN206290823U (en) | A kind of high-performance LNG seals ultralow temperature butterfly valve with hard | |
| CN201100444Y (en) | Ball valve with metal hard sealing body valve base | |
| CN204312745U (en) | A kind of gate valve | |
| CN203009855U (en) | Internal-pressure self-sealing type valve cover stop valve | |
| CN202708142U (en) | Hard-sealing gate vale | |
| CN203516884U (en) | Regulating valve with high erosion resistance | |
| CN203656234U (en) | Movable rigid-sealing zero-leakage knife-shaped gate valve | |
| CN202708128U (en) | Stop valve | |
| CN201858378U (en) | Metal seal mud valve | |
| CN215950467U (en) | Fluorine-lined three-way stop valve | |
| CN204704402U (en) | A kind of double-sealing low leakage low noise sound cage valve | |
| CN205745426U (en) | A kind of heavy caliber heat supply all-welded ball valve | |
| CN204900915U (en) | Three formula ball valves | |
| CN206001019U (en) | A kind of annular groove seal with double-cone stop valve | |
| CN203906840U (en) | Abrasion-resistant low-noise stop valve |
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: 20130911 |