CN207195761U - Dual-seal axial flow type check valve - Google Patents
Dual-seal axial flow type check valve Download PDFInfo
- Publication number
- CN207195761U CN207195761U CN201721057274.XU CN201721057274U CN207195761U CN 207195761 U CN207195761 U CN 207195761U CN 201721057274 U CN201721057274 U CN 201721057274U CN 207195761 U CN207195761 U CN 207195761U
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- CN
- China
- Prior art keywords
- flap
- valve
- axial flow
- dual
- flow type
- 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 discloses a kind of dual-seal axial flow type check valve, it is related to check-valves technical field, including valve body, flap component and valve rod, the flap component includes flap, is connected between the valve rod and the flap using valve clack cover, and the flap is embedded with sealing ring, the sealing ring is reinforced TFE sealing ring, the flap is provided with O-ring seals, and the surface of the flap is additionally provided with fan-shaped runners breach, even circumferential distribution of the fan-shaped runners breach along the flap.Axial flow type check valve of the present utility model uses the structure of double containment, not only ensure that the excellent sealing property of valve also acts the Jing Yin effect of damping.
Description
Technical field
It the utility model is related to check-valves technical field, more particularly to a kind of dual-seal axial flow type check valve.
Background technology
In general axial flow type check valve is split-type structural, and valve has leakage point, and the installation requirement of valve is restricted, valve
The Opening pressure loss of door is big, and valve flap can not accurately return seat, so certain interior leakage all be present in valve, and in keying
During can produce noise.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of dual-seal axial flow type check valve.
The utility model adopts the following technical scheme that：
Dual-seal axial flow type check valve, including valve body, flap component and valve rod, the flap component include flap, institute
State and connected between valve rod and the flap using valve clack cover, the flap is embedded with sealing ring, and the sealing ring is enhancing poly- four
PVF sealing ring, the flap are provided with O-ring seals, and the surface of the flap is additionally provided with fan-shaped runners breach, the fan
Even circumferential distribution of the shape runner breach along the flap.
Preferably, the passage and guiding subassembly for flow of media are additionally provided with the valve body, the guiding subassembly includes
The flow guide sleeve being arranged on the valve rod and the end cap being connected with the flow guide sleeve.
Preferably, the valve body is venturi shape.
Preferably, the valve body is that monoblock cast or forging are made.
Preferably, in addition to sealing surface, bulge quantity of the sealing ring close to the sealing surface side is 0.5-0.8mm.
The utility model has the advantages that:
1st, valve body of the present utility model uses monoblock cast or forging, exists without outer leak source, has prevented the possibility of leakage.
2nd, valve body is designed using venturi shape so that check-valves is particularly stable at work, even if ensure that low in fluid
The valve body of the venturi shape of the complete steady unlatching of valve during flow velocity and total travel, full open fluid passage and high recovery rate
What is brought is low-down fluid loss of total pressure.
3rd, using sealing ring and the double sealing structure of reinforced TFE valve seat, no matter downstream pressure height, valve
Tight, good seal performance is all closed, overcomes general check-valves in, low voltage situations seal performance can be poor the shortcomings that, meanwhile, adopt
Structure on flap is embedded in reinforced TFE (RPTFE) valve seat, when valve opening and closing, the effect of slow open and close can be played
Fruit, while also act as Jing Yin effect.
4th, flap uses sealing ring and O-ring seals double sealing structure and uniform fan-shaped runners breach, and flap begins
It eventually without departing from valve body, can play a part of being automatically positioned, more ensure the reliability of sealing.
Brief description of the drawings
Make preferable explanation to the utility model below in conjunction with the accompanying drawings：
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model double sealing structure enlarged drawing；
Fig. 3 is the utility model sector notch structural representation；
In figure mark for:1st, valve body；2nd, flap component；21st, flap；22nd, valve clack cover；23rd, sealing ring；3rd, valve rod；4th, O shapes
Sealing ring；5th, fan-shaped runners breach；6th, passage；7th, flow guide sleeve；8th, end cap；9th, sealing surface.
Embodiment
As shown in Figure 1 to Figure 3, it is dual-seal axial flow type check valve of the present utility model, including valve body 1, flap component 2
With valve rod 3, flap component 2 is included flap 21, connected between valve rod 3 and flap 21 using valve clack cover 22, flap 21 is embedded with close
Seal 23, sealing ring 23 are reinforced TFE sealing ring, and flap 21 is provided with O-ring seals 4, and the surface of flap 21 is also set
There are fan-shaped runners breach 5, even circumferential distribution of the fan-shaped runners breach 5 along flap 21, in the fan-shaped stream of the Surface Machining of flap 21
Road breach 5, it can be ensured that inflow-rate of water turbine.
The passage 6 and guiding subassembly for flow of media are additionally provided with valve body 1, guiding subassembly includes being arranged on valve rod 3
Flow guide sleeve 7 and the end cap 8 that is connected with flow guide sleeve 7.
Valve body 1 is venturi shape.
Valve body 1 is that monoblock cast or forging are made.
Also include sealing surface 9, bulge quantity of the sealing ring 23 close to the side of sealing surface 9 is 0.5-0.8mm, due to enhancing poly- four
The bulge quantity of PVF sealing ring 23 is small, can prevent the generation of cold flow well.
Principle of the present utility model:
Dual-seal axial flow type check valve of the present utility model can prevent to leak outside, and valve body 1 uses monoblock cast or forging,
Exist without outer leak source, prevented the possibility of leakage；Under smaller flow velocity, valve can standard-sized sheet, generally, valve opening and closing is fast
Speed, to meet the needs of its device, using streamline flow passages 6 and baffle structure, the fluid resistance of valve is small, meanwhile, valve
Do not limited by installation site, can be horizontal, can also right angle setting；The design of valve body 1 is designed using venturi shape, proprietary
Venturi shape, which designs, make it that check-valves is particularly stable at work, even if the characteristic of unlatching ensure that in fluid low flow velocity and full row
During journey valve it is complete it is steady open, what the valve body 1 of the venturi shape of full open fluid passage 6 and high recovery rate was brought is
Low-down fluid loss of total pressure, using O-ring seals 4 and the double sealing structure of reinforced TFE sealing ring 23,
No matter downstream pressure height, valve all closes tight, good seal performance, overcome general check-valves in, it is close under low voltage situations
The shortcomings that sealing property difference, valve are embedded in structure on flap 21 using reinforced TFE sealing ring 23, when the valve is closed,
The effect of buffering can be played, when outlet pressure is more than inlet pressure, flap 21 pushes valve seat to, can play shockproof, reduction water
The flat effect hit, while the effect of mute shock absorption is also acted as, flap 21 is using unique structure, and flap 21 is all the time without departing from valve
It body 1, can play a part of being automatically positioned, more ensure the reliability of sealing.
Specific embodiment of the utility model is these are only, but the technical characteristics of the utility model is not limited thereto.Appoint
How based on the utility model, to solve essentially identical technical problem, essentially identical technique effect is realized, it is made
Simple change, equivalent substitution or modification etc., are all covered by among the scope of protection of the utility model.
Claims (5)
1. dual-seal axial flow type check valve, it is characterised in that：Including valve body, flap component and valve rod, the flap component bag
Flap is included, is connected between the valve rod and the flap using valve clack cover, the flap is embedded with sealing ring, and the sealing ring is
Reinforced TFE sealing ring, the flap are provided with O-ring seals, and the surface of the flap is additionally provided with fan-shaped runners and lacked
Mouthful, even circumferential distribution of the fan-shaped runners breach along the flap.
2. dual-seal axial flow type check valve according to claim 1, it is characterised in that：It is additionally provided with the valve body for being situated between
Mass flow logical passage and guiding subassembly, the guiding subassembly include the flow guide sleeve being arranged on the valve rod and led with described
The end cap of stream set connection.
3. dual-seal axial flow type check valve according to claim 1, it is characterised in that：The valve body is venturi shape.
4. dual-seal axial flow type check valve according to claim 3, it is characterised in that：The valve body be monoblock cast or
Forging is made.
5. dual-seal axial flow type check valve according to claim 1, it is characterised in that：Also include sealing surface, it is described close
Bulge quantity of the seal close to the sealing surface side is 0.5-0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721057274.XU CN207195761U (en) | 2017-08-23 | 2017-08-23 | Dual-seal axial flow type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721057274.XU CN207195761U (en) | 2017-08-23 | 2017-08-23 | Dual-seal axial flow type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207195761U true CN207195761U (en) | 2018-04-06 |
Family
ID=61794492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721057274.XU Expired - Fee Related CN207195761U (en) | 2017-08-23 | 2017-08-23 | Dual-seal axial flow type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207195761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524837A (en) * | 2017-08-23 | 2017-12-29 | 上海伟伦阀门集团江苏有限公司 | Dual-seal axial flow type check valve |
-
2017
- 2017-08-23 CN CN201721057274.XU patent/CN207195761U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524837A (en) * | 2017-08-23 | 2017-12-29 | 上海伟伦阀门集团江苏有限公司 | Dual-seal axial flow type check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20200823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |