CN2929372Y - Double core double seat free-flushing stop valve - Google Patents
Double core double seat free-flushing stop valve Download PDFInfo
- Publication number
- CN2929372Y CN2929372Y CN 200620109477 CN200620109477U CN2929372Y CN 2929372 Y CN2929372 Y CN 2929372Y CN 200620109477 CN200620109477 CN 200620109477 CN 200620109477 U CN200620109477 U CN 200620109477U CN 2929372 Y CN2929372 Y CN 2929372Y
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- double
- seat
- core
- 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
- Temperature-Responsive Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a scour free cut-off valve with double cores and double seats, comprising a sealing device, an inlet flow passage, an outlet flow passage and a valve body of the valve seat, wherein the structure of the sealing device is that the bottom end of a valve stem A (1) is connected with a valve core A (2), a valve stem B (3) passes the round holes of the valve core A (2) in turn, a spring (4) is connected with a valve core B (5), one end of a valve stem C (6) is connected with the valve core A (2), the other end is connected with the valve core C (7). The utility model has the characteristics of good scouring resistance, long service life, and wide adaptation range of medium temperature, simple structure, easy processing and assemblage.
Description
Technical field
The utility model belongs to valve field, relates in particular to a kind of stop valve.
Background technique
Existing high temperature and high pressure cut-off valve, the sealing configuration of normally single core single seat, sealing surface suffers washing away of high-velocity fluid easily during valve opening and closing, thereby working life is short.For head it off, Chinese patent publication number CN1614267, disclose a kind of denomination of invention on 05 11st, 2005 and be " double-core double-seat wash-free stop valve ", realize double seal by flap guard shield and flap (spool), but because flap guard shield " flashboard that resembles a garden shape at first progressively cuts off outlet passage with block fluid ", flap guard shield and hole, body cavity garden have matching gap and produce micro-leakage, need closed could the realization of valve seat on flap and the valve body to seal fully, as seen it realizes that complete seal process is longer, can not complete immediately block fluid flow through.The parts that needs such as " cylindrical of flap guard shield cooperate with the body cavity circular hole ... " cooperate are more, thereby processing and matching requirements height, complex structure.And existing stop valve valve body is generally cylindrical body, and quantity of material is big, the cost of production height.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned shortcoming and provides a kind of anti-scouring capability strong, long service life, and medium temperature accommodation is wide, and is simple in structure, and processing and assembling is easy to double-core double-seat wash-free stop valve.
The purpose of this utility model and solve its technical problem underlying and realize by the following technical solutions:
A kind of double-core double-seat wash-free stop valve of the present utility model, comprise seal arrangement, have the valve body of inlet channel and outlet flow and valve seat, wherein sealing device structure is that valve rod A bottom is connected with spool A, valve rod B passes the circular hole on the spool A successively, spring is connected with spool B, and valve rod C one end is connected with spool A, the other end is connected with spool C.
The utility model can also adopt following technical measures further to realize.
Above-mentioned double-core double-seat wash-free stop valve, in order to save material, valve body is shaped as two and faces the flat cylinder that surrounds with two cambered surfaces directly.
Above-mentioned double-core double-seat wash-free stop valve, in order to reach better sealing effect, spool B, spool C bottom is tapered, matches with valve seat A, valve seat B respectively.
The utility model compared with prior art has tangible advantage and beneficial effect, by above technological scheme as can be known, utilize spool B and valve seat A to constitute a sealing pair, cut off the valve body outlet passage and pass through with block fluid, the sealing pair that spool C and valve seat B are constituted is finished the keying of valve under the situation that nothing is washed away; Spool B, spool C bottom is tapered, match reaching better sealing effect with corresponding valve seat A, valve seat B, and valve body is shaped as flat cylinder, thereby has saved quantity of material, has reduced cost of production.It is strong to have anti-scouring capability, long service life, and medium temperature accommodation is wide, and is simple in structure, and processing and assembling is easy to characteristics.
Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the structural representation of the utility model when closing;
The structural representation of Fig. 2 spool A of the present utility model;
Fig. 3 the utility model valve body outward appearance schematic top plan view.
Mark among the figure:
1: valve rod A; 2: spool A; 3: valve rod B; 4, spring; 5, spool B; 6, valve rod C; 7, spool C; 8, valve seat A; 9, valve seat B; 10, inlet channel; 11, outlet flow.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to the double-core double-seat wash-free stop valve that the utility model proposes, its embodiment, structure, feature and effect thereof, describe in detail as after.
Referring to Fig. 1-2, double-core double-seat wash-free stop valve, comprise seal arrangement, have the valve body of inlet channel and outlet flow and valve seat, wherein sealing device structure is that valve rod A1 bottom is connected with spool A2, valve rod B3 passes the circular hole in the spool A2 successively, spring 4 is connected with spool B5, and valve rod C6 one end is connected with spool A2, the other end is connected with spool C7; Spool B5, spool C7 bottom is tapered, matches with valve seat A8, valve seat B9 respectively.
Referring to Fig. 3, valve body is shaped as two and faces the flat cylinder that surrounds with two cambered surfaces directly.
Working procedure is as follows:
Closing of valve, it is descending that valve rod A1 promotes spool A2, and spool A2 drive valve rod B3 makes and is attached thereto spool B5 and valve seat A8 closure, closes outlet flow 11 block fluid earlier and passes through, and realizes sealing for the first time; It is descending that valve rod A1 promotes spool A2 continuation, and pressure spring 4 utilizes the compressive force of spring 4 that spool B5 and valve seat A8 closure are remained closed, the spool C7 that drives valve rod 6 simultaneously and be attached thereto is to descending, it is closed that spool C7 and valve seat B9 are realized, closes inlet channel 10, thereby realize sealing for the second time.
The unlatching of valve, it is up that valve rod A1 drives spool A2, spool A2 drive valve rod 6 and the spool C7 that is attached thereto to up, spool C7 is separated with valve seat B9, open inlet channel 10; Valve rod A1 drives the top that spool A2 continues to go upward to valve rod B3, and spool A2 drives valve rod B3 and makes and be attached thereto spool B5 and separate with valve seat A8, opens outlet flow 11 fluid is passed through, the valve complete opening.
Claims (3)
1, a kind of double-core double-seat wash-free stop valve, comprise seal arrangement, have the valve body of inlet channel and outlet flow and valve seat, wherein sealing device structure is that valve rod A (1) bottom is connected with spool A (2), valve rod B (3) passes the circular hole in the spool A (2) successively, spring (4) is connected with spool B (5), and valve rod C (6) one ends are connected with spool A (2), the other end is connected with spool C (7).
2, double-core double-seat wash-free stop valve as claimed in claim 1 is characterized in that: valve body is shaped as two and faces the flat cylinder that surrounds with two cambered surfaces directly.
3, double-core double-seat wash-free stop valve as claimed in claim 1 or 2 is characterized in that: spool B (5), spool C (7) bottom is tapered, matches with valve seat A (8), valve seat B (9) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620109477 CN2929372Y (en) | 2006-06-26 | 2006-06-26 | Double core double seat free-flushing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620109477 CN2929372Y (en) | 2006-06-26 | 2006-06-26 | Double core double seat free-flushing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929372Y true CN2929372Y (en) | 2007-08-01 |
Family
ID=38307754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620109477 Expired - Lifetime CN2929372Y (en) | 2006-06-26 | 2006-06-26 | Double core double seat free-flushing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929372Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572865C (en) * | 2006-06-26 | 2009-12-23 | 贵州精高电力物资有限公司 | Double-core double-seat wash-free stop valve |
| CN103591318A (en) * | 2013-11-22 | 2014-02-19 | 四川大学 | Erosion-resistant dual-sealing valve structure |
| CN111120665A (en) * | 2020-01-20 | 2020-05-08 | 韩国昊 | Two-way stop valve |
| CN111271476A (en) * | 2020-01-20 | 2020-06-12 | 陈少同 | Stop valve |
-
2006
- 2006-06-26 CN CN 200620109477 patent/CN2929372Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572865C (en) * | 2006-06-26 | 2009-12-23 | 贵州精高电力物资有限公司 | Double-core double-seat wash-free stop valve |
| CN103591318A (en) * | 2013-11-22 | 2014-02-19 | 四川大学 | Erosion-resistant dual-sealing valve structure |
| CN111120665A (en) * | 2020-01-20 | 2020-05-08 | 韩国昊 | Two-way stop valve |
| CN111271476A (en) * | 2020-01-20 | 2020-06-12 | 陈少同 | Stop valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2929372Y (en) | Double core double seat free-flushing stop valve | |
| CN201482680U (en) | Firing pin valve | |
| CN100572865C (en) | Double-core double-seat wash-free stop valve | |
| CN201096070Y (en) | Cold compressor piston decreasing clearance volume | |
| CN100353004C (en) | Improved drainge valve and open-close method | |
| CN103669521B (en) | Automatic water pressure flushing valve | |
| CN216812906U (en) | Low-voltage electromagnetic valve | |
| CN202280889U (en) | Built-in pilot safety valve | |
| CN204062040U (en) | A kind of high-pressure air reduction valve | |
| CN102966771B (en) | One-way throttle valve | |
| CN201277353Y (en) | Check valve of water jet loom | |
| CN2926706Y (en) | Double-stabilized electromagnetic valve | |
| CN201078338Y (en) | Supercharging break water pump | |
| CN202955291U (en) | One-way throttle valve | |
| CN202708151U (en) | Novel high-pressure regulating valve | |
| CN203146832U (en) | Angle valve | |
| CN201273262Y (en) | Improved structure of air intake valve on compressor cylinder cover | |
| CN2913767Y (en) | Push type double-control water-saving valve | |
| CN101782150B (en) | Manual stop valve | |
| CN201909090U (en) | Double electromagnetic valve seat provided with bypass and capable of protecting sensor | |
| CN203926822U (en) | A kind of resistance to erosion slurry valve | |
| CN202091587U (en) | Spring diaphragm reducing valve | |
| CN206929411U (en) | A kind of integrated electromagnetic valve sleeve | |
| CN202972013U (en) | Two-position three-way valve | |
| CN204664526U (en) | Plunger type safety valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20091223 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |