CN207161764U - Wear-resisting antiscour ball valve - Google Patents
Wear-resisting antiscour ball valve Download PDFInfo
- Publication number
- CN207161764U CN207161764U CN201721178999.4U CN201721178999U CN207161764U CN 207161764 U CN207161764 U CN 207161764U CN 201721178999 U CN201721178999 U CN 201721178999U CN 207161764 U CN207161764 U CN 207161764U
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- valve
- valve seat
- spheroid
- import
- outlet
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Abstract
The utility model discloses a kind of wear-resisting antiscour ball valve,Include valve body,Spheroid,Upper valve rod and lower valve rod,Upper valve rod and lower valve rod are inserted into the upper of valve body respectively,Lower both ends,And upper valve rod and lower valve rod are coaxially connected on spheroid,Entrance point seal assembly and port of export seal assembly are provided between the spheroid and valve body,The entrance point seal assembly and port of export seal assembly are in asymmetric setting,The entrance point seal assembly includes import valve seat,Import valve seat and cap,Import valve seat is simultaneously provided with the first sealing ring between cap and spheroid,The second sealing ring is provided between import valve seat and spheroid,The port of export seal assembly includes outlet valve seat,Outlet valve seat and cap,Outlet valve seat is simultaneously provided with the 3rd sealing ring between cap and spheroid,The 4th sealing ring is provided between outlet valve seat and spheroid,By using said structure,The utility model provides all more preferable ball valve of a kind of sealing effectiveness and erosion resistibility.
Description
Technical field
It the utility model is related to a kind of valve, and in particular to a kind of wear-resisting antiscour ball valve.
Background technology
Ball valve is a kind of conventional valve, and its structure has generally comprised valve body, spheroid, upper valve rod and lower valve rod, spheroid position
In valve body, upper valve rod and lower valve rod are inserted into the upper/lower terminal of valve body respectively, and upper valve rod and lower valve rod are coaxially connected in ball
The drive mechanism of its rotation of driving is connected with body, on upper valve rod, during work, power is exported by drive mechanism, so as to drive
Upper valve rod and spheroid rotation, to realize the open and close of ball valve.Meanwhile to make ball valve to form sealing, the ball after closing
Seal valve seat is further typically provided between body and the entrance point and the port of export of valve body, but between existing seal valve seat and spheroid
For single sealing structure, therefore sealing effectiveness is poor, and in existing ball valve, the sealing of the seal valve seat and the port of export of entrance point
Valve seat is to be symmetrical arranged, therefore erosion resistibility is poor.
The content of the invention
In view of the shortcomings of the prior art, the utility model provides all more preferable ball of a kind of sealing effectiveness and erosion resistibility
Valve.
To achieve the above object, the utility model provides a kind of wear-resisting antiscour ball valve, include valve body, spheroid, on
Valve rod and lower valve rod, spheroid are located in valve body, and upper valve rod and lower valve rod are inserted into the upper/lower terminal of valve body, and upper valve rod respectively
It is coaxially connected on spheroid with lower valve rod, be connected with the drive mechanism of its rotation of driving on upper valve rod, the spheroid and valve body it
Between be provided with entrance point seal assembly and port of export seal assembly, the entrance point seal assembly and port of export seal assembly are in non-
It is symmetrical arranged, the entrance point seal assembly includes import valve seat, import valve seat and cap, import valve seat and the coaxial fitting sle of cap
Outside import valve seat, the first sealing ring, the axle of import valve seat are provided between axial one end and spheroid of import valve seat and cap
To the second sealing ring is provided between one end and spheroid, import valve seat is simultaneously between cap and the axial other end and valve body of import valve seat
Entrance point counterbalance spring is provided with, the port of export seal assembly includes outlet valve seat, outlet valve seat and cap, and outlet valve seat is simultaneously
The coaxial fitting sle of cap is provided with the 3rd sealing ring outside outlet valve seat between axial one end and spheroid of outlet valve seat and cap,
The axial direction that the 4th sealing ring, outlet valve seat and cap and outlet valve seat are provided between axial one end of outlet valve seat and spheroid is another
Port of export counterbalance spring is provided between end and valve body, plain thrust bearing is provided between the upper end of lower valve rod and spheroid, under
The extension that outer surface of spheroid is held in fitting is additionally provided with the middle part of valve rod.
The beneficial effects of the utility model are：Using said structure, due in the utility model, the spheroid and valve body
Entrance point and the port of export are provided with double-layer seal, therefore compare existing single sealing structure, and sealing effectiveness is more preferable, and is compensating
It in the presence of spring, can in time be compensated after sealing surface wear, so as to effectively improve the wearability of valve, and greatly prolong ball valve
Whole service life, meanwhile, the entrance point seal assembly and port of export seal assembly use asymmetric setting, can so make
The shut-in time at valve both ends is asynchronous, avoids valve from directly being washed away by medium in switching process, so as to effectively improve valve
The erosion resistibility of door.In addition, being provided with plain thrust bearing between the upper end of lower valve rod and spheroid, valve rod can be effectively reduced
Driving torque, spheroid is more swimmingly driven, and be provided with fitting in the middle part of lower valve rod and hold outer surface of spheroid
Extension, then can preferably support positioning ball, enable the more stable keying of ball valve.
The utility model can be further arranged to inner ring surface of the inner ring surface diameter equal to import valve seat of the outlet valve seat
Diameter, the outer ring surface diameter of the outlet valve seat are more than the outer ring surface diameter of import valve seat, towards the end of spheroid in outlet valve seat
Transition connection spheroid and the intermediate incline at valve outlet end are provided with face, and the three, the 4th sealing rings are respectively positioned on intermediate incline
Radial outside.
Further set using above-mentioned so that the flow of media area of outlet valve seat is more than the flow of media face of import valve seat
Product, washes away so as to reduce medium to spheroid and both ends valve seat, so as to effectively improve the erosion resistibility of valve.
The utility model may further be provided to be spliced to form for described valve body by entrance point valve body and port of export valve body,
Valve body import is correspondingly opened on entrance point valve body, and valve outlet is correspondingly opened on port of export valve body, entrance point seal assembly
It is correspondingly arranged between spheroid and entrance point valve body, port of export seal assembly is correspondingly arranged between spheroid and port of export valve body.
In this way, the integral installation of valve can be easy to.
The utility model may further be provided to be made up of the first, the 3rd sealing ring of FFKM, and the structure that takes the shape of the letter U is set
Put, the second, the 4th sealing ring is made up of polytetrafluoroethylene (PTFE).
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 A portions enlarged drawing；
Fig. 3 is Fig. 1 B portions enlarged drawing.
Embodiment
A kind of wear-resisting antiscour ball valve is given as shown in Figure 1, 2, 3, includes valve body, spheroid 1, upper valve rod 2 and lower valve
Bar 3, spheroid 1 are located in valve body, and upper valve rod 2 and lower valve rod 3 are inserted into the upper/lower terminal of valve body, and upper valve rod 2 and lower valve respectively
Bar 3 is coaxially connected on spheroid 1, the drive mechanism 4 of its rotation of driving is connected with upper valve rod 2, between the spheroid 1 and valve body
Entrance point seal assembly 5 and port of export seal assembly 6 are provided with, the entrance point seal assembly 5 and port of export seal assembly 6 are in
Asymmetric setting, the entrance point seal assembly 5 include import valve seat 51, import valve seat and cap 52, import valve seat and cap 52
Coaxial fitting sle is provided with the first sealing outside import valve seat 51 between axial one end and spheroid 1 of import valve seat and cap 52
Circle 53, the second sealing ring 54, import valve seat and cap 52 and inlet valve are provided between axial one end of import valve seat 51 and spheroid 1
Entrance point counterbalance spring 55 is provided between the axial other end and valve body of seat 51, the port of export seal assembly 6 includes
Mouth valve seat 61, outlet valve seat and cap 62, outlet valve seat and 62 coaxial fitting sle of cap are outside outlet valve seat 61, outlet valve seat and cap
The 3rd sealing ring 63 is provided between 62 axial one end and spheroid 1, is set between axial one end of outlet valve seat 61 and spheroid 1
There is the 4th sealing ring 64, outlet valve seat is simultaneously provided with port of export benefit between cap 62 and the axial other end and valve body of outlet valve seat 61
Spring 65 is repaid, plain thrust bearing 7 is provided between the upper end of lower valve rod 3 and spheroid 1, the middle part of lower valve rod 3 is additionally provided with patch
Close the extension 31 for holding outer surface of spheroid.By using said structure, the utility model provides a kind of sealing effectiveness and resisted
The all more preferable ball valve of scouring capability.
The inner ring surface diameter of the outlet valve seat 61 is equal to the inner ring surface diameter of import valve seat 51, the outlet valve seat 61
Outer ring surface diameter is more than the outer ring surface diameter of import valve seat 51, towards being provided with transition on the end face of spheroid 1 in outlet valve seat 61
Spheroid 1 and the intermediate incline 66 at valve outlet end are connected, and the 3rd sealing ring 63, the 4th sealing ring 64 are respectively positioned on intermediate incline 66
Radial outside.Further set using above-mentioned so that the flow of media area of outlet valve seat 61 is more than Jie of import valve seat 51
Matter circulation area, spheroid 1 and both ends valve seat are washed away so as to reduce medium, so as to effectively improve the erosion resistibility of valve.
Described valve body is spliced to form by entrance point valve body 8 and port of export valve body 9, and valve body import 10 is corresponding to be opened in import
On end valve body 8, valve outlet 11 is corresponding to be opened on port of export valve body 9, entrance point seal assembly 5 be correspondingly arranged at spheroid 1 with
Between entrance point valve body 8, port of export seal assembly 6 is correspondingly arranged between spheroid 1 and port of export valve body 9.In this way, can be just
In the integral installation of valve.
First sealing ring 53, the 3rd sealing ring 63 are made up of FFKM, and the structure setting that takes the shape of the letter U, the second sealing ring 54,
4th sealing ring 64 is made up of polytetrafluoroethylene (PTFE).
Claims (4)
1. a kind of wear-resisting antiscour ball valve, including valve body, spheroid, upper valve rod and lower valve rod, spheroid is located in valve body, upper valve rod
It is inserted into the upper/lower terminal of valve body respectively with lower valve rod, and upper valve rod and lower valve rod are coaxially connected on spheroid, connect on upper valve rod
The drive mechanism of its rotation of driving is connected to, entrance point seal assembly and port of export sealing group are provided between the spheroid and valve body
Part, it is characterised in that：The entrance point seal assembly and port of export seal assembly are in asymmetric setting, the entrance point sealing group
Part includes import valve seat, import valve seat and cap, and simultaneously the coaxial fitting sle of cap is outside import valve seat for import valve seat, and import valve seat is simultaneously
The first sealing ring is provided between axial one end of cap and spheroid, second is provided between axial one end of import valve seat and spheroid
Sealing ring, import valve seat is simultaneously provided with entrance point counterbalance spring between cap and the axial other end and valve body of import valve seat, described
Port of export seal assembly includes outlet valve seat, outlet valve seat and cap, and simultaneously the coaxial fitting sle of cap is mounted in outlet valve seat to outlet valve seat
Outside, the 3rd sealing ring, axial one end of outlet valve seat and spheroid are provided between axial one end and spheroid of outlet valve seat and cap
Between be provided with the 4th sealing ring, outlet valve seat is simultaneously provided with the port of export between cap and the axial other end and valve body of outlet valve seat
Counterbalance spring, plain thrust bearing is provided between the upper end of lower valve rod and spheroid, fitting support is additionally provided with the middle part of lower valve rod
The firmly extension of outer surface of spheroid.
2. wear-resisting antiscour ball valve according to claim 1, it is characterised in that：Inner ring surface diameter of the outlet valve seat etc.
In the inner ring surface diameter of import valve seat, the outer ring surface diameter of the outlet valve seat is more than the outer ring surface diameter of import valve seat, outlet
Towards being provided with transition connection spheroid and the intermediate incline at valve outlet end on the end face of spheroid on valve seat, and the three, the 4th is close
Seal is respectively positioned on the radial outside of intermediate incline.
3. wear-resisting antiscour ball valve according to claim 1 or 2, it is characterised in that：Described valve body is by entrance point valve body
It is spliced to form with port of export valve body, valve body import is correspondingly opened on entrance point valve body, and valve outlet is correspondingly opened in the port of export
On valve body, entrance point seal assembly is correspondingly arranged between spheroid and entrance point valve body, and port of export seal assembly is correspondingly arranged at
Between spheroid and port of export valve body.
4. wear-resisting antiscour ball valve according to claim 1, it is characterised in that：Firstth, the 3rd sealing ring is by FFKM
It is made, and the structure setting that takes the shape of the letter U, the second, the 4th sealing ring are made up of polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721178999.4U CN207161764U (en) | 2017-09-14 | 2017-09-14 | Wear-resisting antiscour ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721178999.4U CN207161764U (en) | 2017-09-14 | 2017-09-14 | Wear-resisting antiscour ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161764U true CN207161764U (en) | 2018-03-30 |
Family
ID=61721917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721178999.4U Active CN207161764U (en) | 2017-09-14 | 2017-09-14 | Wear-resisting antiscour ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207161764U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154092A (en) * | 2021-04-01 | 2021-07-23 | 浙江上工阀门有限公司 | Ultra-strong sealing high-performance slurry duplex ball valve capable of removing impurities under pressure for shield machine |
-
2017
- 2017-09-14 CN CN201721178999.4U patent/CN207161764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154092A (en) * | 2021-04-01 | 2021-07-23 | 浙江上工阀门有限公司 | Ultra-strong sealing high-performance slurry duplex ball valve capable of removing impurities under pressure for shield machine |
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