CN207178786U - A kind of axial flow type check valve of sealed reliable - Google Patents
A kind of axial flow type check valve of sealed reliable Download PDFInfo
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- CN207178786U CN207178786U CN201721096637.0U CN201721096637U CN207178786U CN 207178786 U CN207178786 U CN 207178786U CN 201721096637 U CN201721096637 U CN 201721096637U CN 207178786 U CN207178786 U CN 207178786U
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- valve
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- valve seat
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Abstract
A kind of axial flow type check valve of sealed reliable is the utility model is related to, belongs to check-valves technical field, including valve body, the valve component and flap that are arranged in valve body；The valve component includes valve seat, snap ring and the end ring being detachably connected successively vertically, is provided with neck corresponding with snap ring in valve body, snap ring is arranged in neck, and sealing ring is provided between valve seat and valve body；The becket being fixed with the flap between flap and valve seat, becket have hard sealing surface corresponding with valve seat end face, and soft seal ring is provided with becket, and soft seal ring stretches out hard sealing surface and is resisted against on the end face of valve seat.The beneficial effects of the utility model are：Valve base sealing is using soft seal and seals the double sealing structure being combined firmly, and sealing is more reliable；Soft sealing face and hard sealing surface are flat seal, are advantageous to compress, difficulty of processing is small.
Description
Technical field
Check-valves technical field is the utility model is related to, more particularly to a kind of axial flow type check valve of sealed reliable.
Background technology
With the newly-built and enlarging of the Petrochemical Projects such as domestic large-scale oil refining and ethene, Oil-gas Long-distance Transportation Pipeline system and
The harsher pipe-line system of the operating mode such as compressor and mammoth pump in large-scale ethylene plant, it is desirable to from quick closedown, compared with low pressure loss
And the check-valves of noise, especially gas phase media, it is necessary to using special shape axial flow type check valve, to ensure above-mentioned pipeline system
System safely and effectively operation.Current axial flow type check valve valve seat is frequently with single soft seal, easily by the solid in medium
Grain scratches, and flap surface is hard sealing surface, and difficulty of processing is big, and surface treatment cost is high.
Utility model content
In order to solve the above technical problems, the technical scheme that the utility model uses is：A kind of sealed reliable is provided
Axial flow type check valve.
The purpose of this utility model is achieved through the following technical solutions：A kind of axial-flow type non-return of sealed reliable
Valve, it is characterised in that：Including valve body, the valve component and flap that are arranged in valve body；The valve component include vertically according to
The secondary valve seat being detachably connected, snap ring and end ring, neck corresponding with snap ring is provided with valve body, snap ring is arranged in neck,
Sealing ring is provided between valve seat and valve body；The becket being fixed with the flap between flap and valve seat, becket
With hard sealing surface corresponding with valve seat end face, be provided with soft seal ring on becket, soft seal ring stretch out hard sealing surface against
On the end face of valve seat.
Preferably, the valve seat, end ring and snap ring are connected by screw.
Preferably, the snap ring includes three end to end arc rings for forming annulus, is easy to dismount.
Preferably, the material of the soft seal ring is nylon or plastics.
Preferably, the soft seal ring is embedded on becket.
Preferably, use and be welded to connect between the becket and flap.
The beneficial effects of the utility model are：
First, valve base sealing seals using soft seal and firmly the double sealing structure being combined, and hard sealing structure can block Jie
Solid particle in matter, prevents it from damaging soft sealing face, and soft sealing face can ensure that sealing of the check-valves in low pressure or high pressure can
By property；
2nd, soft sealing face and hard sealing surface are flat seal, are advantageous to compress, sealing it is relatively reliable, and plane plus
Work difficulty is smaller relative to the conical surface or sphere, and hard sealing surface is arranged on becket, and relative to flap, the volume of becket is more
Small, difficulty of processing is smaller, and the cost of surface treatment is lower；
3rd, valve component is fixed on valve body by Snap ring structure, need to only be unscrewed screw during dismounting, be then taken out snap ring i.e.
Removable lower valve holder assembly, it is simple in construction, it is easy to dismount.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is A portions enlarged drawing in Fig. 1；
Fig. 3 is the structural representation of snap ring；
Fig. 4 is B portions enlarged drawing in Fig. 1；
In figure：1- valve bodies, 2- flaps, 3- valve seats, 4- end ring, 5- snap rings, 6- sealing rings, 7- beckets, 8- soft seal rings,
9- screws, 10- arc rings, 11- supporting parts, 12- guide sleeves, 13- through holes, 14- end caps, 15- springs, 16- distance collars, 17- are clear
Clean ring, 18- gussets.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings, but the scope of protection of the utility model is not limited to
It is as described below.
As shown in Fig. 1 ~ 4, a kind of axial flow type check valve of sealed reliable, it is characterised in that：Including valve body 1, it is arranged on valve
Valve component and flap 2 in body 1；The valve component includes the valve seat 3, snap ring 5 and end being detachably connected successively vertically
Ring 4, be provided with valve body 1 and be arranged on 5 corresponding neck of snap ring, snap ring 5 in neck, described neck for annular neck,
Sealing ring 6 is provided between valve seat 3 and valve body 1；The becket 7 being fixed with the flap 2 between flap 2 and valve seat 3,
Becket 7 has hard sealing surface corresponding with the end face of valve seat 3, is provided with soft seal ring 8 on becket 7, soft seal ring 8 stretches out firmly
Sealing surface is resisted against on the end face of valve seat 3.
Described sealing ring 6 is O-ring seal, and uses quality of rubber materials；Hard sealing surface and valve seat 3 on becket 7
On sealing surface pass through Surface hardening treatment, Surface hardening treatment herein is nickel plating or chromium plating or pile-up welding hard alloy；Figure
The direction of arrow shown is the flow direction of medium.
The valve seat 3, end ring 4 and snap ring 5 are connected by screw 9；Such as Fig. 3, snap ring 5, which includes three end to end formed, to be justified
The arc ring 10 of ring, is easy to dismount, and is evenly arranged with arc ring 10 and 9 corresponding screw hole of screw, in addition, snap ring 5
Pendant collet can also be used；The material of soft seal ring 8 is nylon or plastics；Soft seal ring 8 is embedded on becket 7, soft seal ring 8
It is interference fit between becket 7, prevents soft seal from coming off；Using being welded to connect between becket 7 and flap 2, in addition,
Also mode connects for screw or hot jacket can be used to connect.
In addition, as Figure 1 and Figure 4, the utility model also includes guide sleeve 12, the setting being fixedly connected with flap
Supporting part 11 in valve body 1；The supporting part 11 is provided with through hole 13, and one end of through hole 13 is fixed with end cap 14, guide sleeve
12 are slidably arranged in through hole 13 through the other end of through hole 13, are provided with guide sleeve 12 between flap 2 and end cap 14
Spring 15, distance collar 16 and wiper ring 17 are fixed between the inwall of cylindrical and through hole 13 of guide sleeve 12, distance collar 16 is positioned at clear
Between clean ring 17 and end cap 14；The circumferentially arranged gusset 18 having between flap 2 and supporting part 11 of the inwall of valve body 1,
Gusset 18 extends to the cylindrical of flap 2 from valve interior wall；Wiper ring 17, which can strike off, is attached to the cylindrical impurity of guide sleeve 12, prevents
Only impurity is entered in guide sleeve 12, blocks spring 15 so that valve element can not be slided smoothly, cause check-valves to play on or off
Close；Gusset 18 medium channel in valve pocket can be divided into it is multiple, valve open after, medium flows out from multiple medium channels, no
Eddy flow can be produced, avoids damage of the eddy flow to valve internal part, extends the service life of valve.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, there can be various modifications and variations in the spirit and principles of the utility model, these are equivalent
Modification or replacement etc., are all contained within the scope of protection of the utility model.
Claims (6)
- A kind of 1. axial flow type check valve of sealed reliable, it is characterised in that：Including valve body, the valve component being arranged in valve body and Flap；The valve component includes the valve seat, snap ring and the end ring that are detachably connected successively vertically, is provided with valve body and snap ring Corresponding neck, snap ring are arranged in neck, and sealing ring is provided between valve seat and valve body；It is fixed with the flap positioned at valve Becket between valve and valve seat, becket have hard sealing surface corresponding with valve seat end face, soft seal are provided with becket Ring, soft seal ring stretch out hard sealing surface and are resisted against on the end face of valve seat.
- 2. the axial flow type check valve of sealed reliable according to claim 1, it is characterised in that：The valve seat, end ring and card Ring is connected by screw.
- 3. the axial flow type check valve of sealed reliable according to claim 1, it is characterised in that：The snap ring includes three head Tail connects to forming the arc ring of annulus.
- 4. the axial flow type check valve of sealed reliable according to claim 1, it is characterised in that：The material of the soft seal ring For nylon or plastics.
- 5. the axial flow type check valve of sealed reliable according to claim 4, it is characterised in that：The soft seal ring is embedded in On becket.
- 6. the axial flow type check valve of sealed reliable according to claim 1, it is characterised in that：The becket and flap it Between using being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721096637.0U CN207178786U (en) | 2017-08-30 | 2017-08-30 | A kind of axial flow type check valve of sealed reliable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721096637.0U CN207178786U (en) | 2017-08-30 | 2017-08-30 | A kind of axial flow type check valve of sealed reliable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207178786U true CN207178786U (en) | 2018-04-03 |
Family
ID=61739435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721096637.0U Active CN207178786U (en) | 2017-08-30 | 2017-08-30 | A kind of axial flow type check valve of sealed reliable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207178786U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365496A (en) * | 2020-03-31 | 2020-07-03 | 天虹阀门科技（泉州）有限公司 | Gate valve with non-return function |
| CN112779717A (en) * | 2019-11-07 | 2021-05-11 | 青岛海尔滚筒洗衣机有限公司 | Clothes lifting device for washing machine and roller washing machine |
| CN113653837A (en) * | 2021-09-06 | 2021-11-16 | 刘余 | Assembled forged steel axial flow check valve |
-
2017
- 2017-08-30 CN CN201721096637.0U patent/CN207178786U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112779717A (en) * | 2019-11-07 | 2021-05-11 | 青岛海尔滚筒洗衣机有限公司 | Clothes lifting device for washing machine and roller washing machine |
| CN111365496A (en) * | 2020-03-31 | 2020-07-03 | 天虹阀门科技（泉州）有限公司 | Gate valve with non-return function |
| CN111365496B (en) * | 2020-03-31 | 2021-12-17 | 天虹阀门科技（泉州）有限公司 | Gate valve with non-return function |
| CN113653837A (en) * | 2021-09-06 | 2021-11-16 | 刘余 | Assembled forged steel axial flow check valve |
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