CN206246712U - A kind of floating seal high-pressure manifold plug valve - Google Patents
A kind of floating seal high-pressure manifold plug valve Download PDFInfo
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- CN206246712U CN206246712U CN201621397464.1U CN201621397464U CN206246712U CN 206246712 U CN206246712 U CN 206246712U CN 201621397464 U CN201621397464 U CN 201621397464U CN 206246712 U CN206246712 U CN 206246712U
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Abstract
The utility model belongs to plug valve technical field, discloses a kind of floating seal high-pressure manifold plug valve, for solving the problems, such as that existing plug valve is entered between valve pocket and valve element so as to erosive wear valve pocket and valve element due to high-pressure medium.Valve body described in the utility model is provided with valve pocket, floating plug is arranged with the valve pocket, the valve rod for driving floating plug to rotate is arranged with the valve body, the periphery of the floating plug is coated with two panels sealing arc piece, every sealing arc piece offers through hole, every sealing arc piece is connected with an auxiliary arc piece, the sealing arc piece that two panels is connected with auxiliary arc piece forms a full circle arc and is set in the periphery of floating plug and is mutually adapted with floating plug, and the external arc that two panels is connected with the sealing arc piece of auxiliary arc piece is mutually adapted with valve body；For offering linear groove on the exterior arc surface of the sealing arc bit end being connected with auxiliary arc piece, linear waveform spring leaf is installed in the linear groove.
Description
Technical field
The utility model belongs to plug valve technical field, and in particular to a kind of floating seal high-pressure manifold plug valve.
Background technology
High pressure pipe joint extensive use in fracture acidizing, well cementation, coiled tubing, liquid nitrogen operation.It has that usage amount is big, plants
When the features such as class is more, pressure is high, particularly massive hydraulic fracturing construct, high pressure pipe joint usage amount is huge.Booster, thorn leakage phenomenon in use
Happen occasionally, there is safety and well control risk very high.And high pressure pipe joint plug valve controls fluid (logical in belonging to high pressure pipe joint
Road) flow main pressure control part.The technical literature on plug valve is also more in the prior art, for example Application No.
2015205091331 utility model patent discloses a kind of plug valve, including valve body, cock and bonnet, and valve is provided with valve body
Chamber, cock is located in valve pocket, and cock stem is connected with the top of cock, and valve body is made for steel alloy, and cock is ceramic making
Form, cock is formed for ceramic making, be cylindrical fit between cock and valve body, cock is provided with rotation with the contact surface of valve body
Bushing, rotary liner top is additionally provided with sealing ring, and sealing ring top is provided with gland, and sealing ring is pressed on cock top by gland
On, cock is provided with interface channel, and gateway size and the size of valve pocket passage of interface channel match；Bonnet passes through bolt
It is connected with valve body；Body top is additionally provided with handwheel, and handwheel is linked with cock stem.
But existing plug valve has following technical problem：The easy crush injury of valve rod sealing member, so as to cause valve
Bar seal failure and switch torque are big；Simultaneously in the prior art because high-pressure medium is easily accessible between valve pocket and valve element, from
And cause valve pocket erosion and valve element to wear and tear, so as to cause plug valve service life short.
Utility model content
The utility model is in order to solve existing plug valve because high-pressure medium is entered between valve pocket and valve element so as to erosion
The problem of abrasion valve pocket and valve element, and a kind of floating seal high-pressure manifold plug valve is provided.
In order to solve the above technical problems, the technical scheme that the utility model is used is：
A kind of floating seal high-pressure manifold plug valve, including valve body, the valve body are provided with valve pocket, are arranged with the valve pocket
Floating plug, be arranged with the valve body for drive floating plug rotate valve rod, it is characterised in that the floating plug
Periphery be coated with two panels sealing arc piece, every sealing arc piece offers through hole, and every sealing arc piece is connected with an auxiliary arc piece,
The sealing arc piece that two panels is connected with auxiliary arc piece form a full circle arc and be set in the peripheral of floating plug and with floating plug phase
Mutually it is adapted to, the external arc that two panels is connected with the sealing arc piece of auxiliary arc piece is mutually adapted with valve body；For being connected with auxiliary arc piece
Sealing arc bit end exterior arc surface on offer linear groove, linear waveform spring leaf is installed in the linear groove.
It is metal hard-sealing between the intrados of the sealing arc piece and the face of cylinder of floating plug；The sealing arc piece
Rubber seal between extrados and valve body.
The upper surface of the floating plug offers floating trough, the lower end of the valve rod stretch into valve body and with floating trough phase
Mutually it is adapted to.
The periphery of the valve rod is arranged with the single direction thrust ball bearing being arranged on valve body.
Sealing ring is arranged with the valve rod, the cavity formed between valve body and floating plug.
The bonnet for fit sealing arc piece and floating plug is connected with the valve body.
Compared with prior art, the utility model has the advantages that：
Floating seal high-pressure manifold plug valve of the present utility model, including valve body, the valve body are provided with valve pocket, the valve pocket
Floating plug is inside arranged with, the valve rod for driving floating plug to rotate is arranged with the valve body, outside the floating plug
Enclose and be coated with two panels sealing arc piece, every sealing arc piece offers through hole, every sealing arc piece is connected with an auxiliary arc piece, two panels
The sealing arc piece for being connected with auxiliary arc piece forms a full circle arc and is set in the periphery of floating plug and is mutually fitted with floating plug
Match somebody with somebody, the external arc that two panels is connected with the sealing arc piece of auxiliary arc piece is mutually adapted with valve body；For close with what auxiliary arc piece was connected
Linear groove is offered on the exterior arc surface for sealing arc bit end, linear waveform spring leaf is installed in the linear groove.Plug valve is opened
When, linear waveform spring leaf provides pretightning force, the intrados of sealing arc piece is fitted completely floating plug, while sealing arc
Rubber seal between piece and valve body, is prevented from the fine particle in high-pressure medium and enters between valve body and sealing arc piece and close
Between envelope arc piece and floating plug, and then protect floating plug to seal cambered surface and valve pocket sealing cambered surface from erosion and abrasion, enter
And improve the service life of plug valve.
The upper end of floating plug of the present utility model offers floating trough, when plug valve is closed, in high pressure
Floating plug forms pressure differential at two ends under medium impetus, and high-pressure side promotes floating plug to be floated to low-pressure end sealing arc piece
It is dynamic, floating plug is brought into close contact with the inner metal face of sealing arc piece, while promoting sealing arc piece extrados and valve body rubber
Sealing so that plug valve is in the state being fully sealed, and prevents the situation of leakage.
The periphery of valve rod of the present utility model is arranged with the single direction thrust ball bearing being arranged on valve body, by unilateral thrust
Ball bearing can reduce torque during switch；The sealing ring crimp on valve rod is also prevented from simultaneously, it is ensured that sealing effectiveness.
Brief description of the drawings
Fig. 1 be plug valve of the present utility model be in opening when structural representation；
Fig. 2 is the attachment structure schematic diagram of sealing arc piece of the present utility model and auxiliary arc piece；
Marked in figure：1st, valve rod, 2, cock cap, 3, single direction thrust ball bearing, 4, valve body, 5, sealing ring, 6, floating plug,
7th, arc piece is sealed, 8, bonnet, 9, linear waveform spring leaf, 10, auxiliary arc piece.
Specific embodiment
With reference to embodiment, the utility model will be further described, and described embodiment is only new this practicality
A part of embodiment of type, is not whole embodiments.Based on the embodiment in the utility model, the ordinary skill people of this area
Other embodiments used that member is obtained under the premise of creative work is not made, belong to protection model of the present utility model
Enclose.
With reference to accompanying drawing, floating seal high-pressure manifold plug valve of the present utility model, including valve body 4, the valve body 4 is provided with valve
Chamber, is arranged with floating plug 6 in the valve pocket, the valve rod 1 for driving floating plug 6 to rotate, institute are arranged with the valve body 4
The periphery for stating floating plug 6 is coated with two panels sealing arc piece 7, and every sealing arc piece 7 offers through hole, and through hole is used for and valve body 4
Interior runner is interconnected, and every sealing arc piece 7 is connected with an auxiliary arc piece 10, and auxiliary arc piece 10 is used for and the shape of sealing arc piece 7
Into a full circle arc, the effect of righting sealing arc piece 7 is reached, the sealing arc piece 7 that two panels is connected with auxiliary arc piece 10 forms a full circle
Arc is simultaneously set in the periphery of floating plug 6 and is mutually adapted with floating plug 6, and two panels is connected with the sealing arc piece of auxiliary arc piece 10
7 external arc is mutually adapted with valve body 4, i other words the sealing arc piece for being connected with two panels auxiliary arc piece is set in valve pocket；For
Offered on the exterior arc surface at the end of sealing arc piece 7 being connected with auxiliary arc piece 10 in linear groove, the linear groove and install linear
Wavy spring piece 9.When plug valve is opened, linear waveform spring leaf provides pretightning force, makes the intrados of sealing arc piece complete
Laminating floating plug, while sealing rubber seal between arc piece and valve body, the fine particle being prevented from high-pressure medium enters
Between valve body and sealing arc piece and between sealing arc piece and floating plug, and then protect floating plug sealing cambered surface and valve pocket close
Envelope cambered surface improves the service life of plug valve from erosion and abrasion.
It is metal hard-sealing between the intrados of sealing arc piece 7 of the present utility model and the face of cylinder of floating plug 6；It is described
Rubber seal between the extrados and valve body 4 of sealing arc piece 7, that is, it is rubber seal to seal between arc piece 7 and the inwall of valve pocket.
The upper surface of the floating plug 6 offers floating trough, the lower end of the valve rod 1 stretch into valve body 4 and with floating
Groove is mutually adapted.When plug valve is closed, floating plug 6 forms pressure at two ends under high-pressure medium impetus
Difference, high-pressure side promotes floating plug 6 to be floated to low-pressure end sealing arc piece 7, makes the inner metal of floating plug 6 and sealing arc piece 7
Face is brought into close contact, while promoting the extrados of sealing arc piece 7 and valve body rubber seal so that plug valve is in the shape being fully sealed
State, prevents the situation of leakage.
The periphery of the valve rod 1 of the present utility model is arranged with the single direction thrust ball bearing 3 being arranged on valve body 4, passes through
Single direction thrust ball bearing 3 is used to bear axial thrust, reduces switch torque.
As a kind of preferred mode of the utility model, the cavity formed between the valve rod 1, valve body 4 and floating plug 6
Inside it is arranged with sealing ring 5.
The bonnet 8 for fit sealing arc piece 7 and floating plug 6, wherein bonnet 8 and valve body 4 are connected with the valve body 4
It is threadably secured connection.
Upper end wherein on valve rod 1 is arranged with cock cap 2, and cock cap 2 is fixedly connected with valve rod 1 by key.
To sum up, the utility model eliminates that the switch torque that traditional plug valve exists in use is big, valve stem seal
The match erosion of the easy crush injury of ring, valve pocket and float trap and the problem of abrasion, extend the service life of plug valve, with safety
Efficiently, easy to operate the characteristics of.
Embodiment one
The floating seal high-pressure manifold plug valve of the present embodiment, including valve body, the valve body are provided with valve pocket, in the valve pocket
The floating plug being arranged with, is arranged with the valve rod for driving floating plug to rotate, outside the floating plug on the valve body
Enclose and be coated with two panels sealing arc piece, every sealing arc piece offers through hole, every sealing arc piece is connected with an auxiliary arc piece, two panels
The sealing arc piece for being connected with auxiliary arc piece forms a full circle arc and is set in the periphery of floating plug and is mutually fitted with floating plug
Match somebody with somebody, the external arc that two panels is connected with the sealing arc piece of auxiliary arc piece is mutually adapted with valve body；For close with what auxiliary arc piece was connected
Linear groove is offered on the exterior arc surface for sealing arc bit end, linear waveform spring leaf is installed in the linear groove.
Embodiment two
The floating seal high-pressure manifold plug valve of the present embodiment, including valve body, the valve body are provided with valve pocket, in the valve pocket
The floating plug being arranged with, is arranged with the valve rod for driving floating plug to rotate, outside the floating plug on the valve body
Enclose and be coated with two panels sealing arc piece, every sealing arc piece offers through hole, every sealing arc piece is connected with an auxiliary arc piece, two panels
The sealing arc piece for being connected with auxiliary arc piece forms a full circle arc and is set in the periphery of floating plug and is mutually fitted with floating plug
Match somebody with somebody, the external arc that two panels is connected with the sealing arc piece of auxiliary arc piece is mutually adapted with valve body；For close with what auxiliary arc piece was connected
Linear groove is offered on the exterior arc surface for sealing arc bit end, linear waveform spring leaf is installed in the linear groove；The sealing arc
It is metal hard-sealing between the intrados of piece and the face of cylinder of floating plug；Rubber between the extrados and valve body of the sealing arc piece
Glue is sealed.
Embodiment three
On the basis of any of the above-described embodiment, the upper surface of the floating plug offers floating trough, the valve rod
Lower end stretch into valve body and be mutually adapted with floating trough.
Example IV
On the basis of any of the above-described embodiment, the periphery of the valve rod is arranged with the unilateral thrust being arranged on valve body
Ball bearing.
Embodiment five
On the basis of any of the above-described embodiment, the valve rod, the cavity inner sleeve formed between valve body and floating plug
It is provided with sealing ring.
Embodiment six
On the basis of any of the above-described embodiment, it is connected with the valve body for fit sealing arc piece and floating plug
Bonnet.
Claims (6)
1. a kind of floating seal high-pressure manifold plug valve, including valve body, the valve body is provided with valve pocket, is arranged with the valve pocket floating
Movable valve plug, is arranged with the valve rod for driving floating plug to rotate on the valve body, it is characterised in that outside the floating plug
Enclose and be coated with two panels sealing arc piece, every sealing arc piece offers through hole, every sealing arc piece is connected with an auxiliary arc piece, two panels
The sealing arc piece for being connected with auxiliary arc piece forms a full circle arc and is set in the periphery of floating plug and is mutually fitted with floating plug
Match somebody with somebody, the external arc that two panels is connected with the sealing arc piece of auxiliary arc piece is mutually adapted with valve body；For close with what auxiliary arc piece was connected
Linear groove is offered on the exterior arc surface for sealing arc bit end, linear waveform spring leaf is installed in the linear groove.
2. floating seal high-pressure manifold plug valve according to claim 1, it is characterised in that the inner arc of the sealing arc piece
It is metal hard-sealing between face and the face of cylinder of floating plug；Rubber seal between the extrados and valve body of the sealing arc piece.
3. floating seal high-pressure manifold plug valve according to claim 1, it is characterised in that the upper end of the floating plug
Face offers floating trough, and the lower end of the valve rod is stretched into valve body and is mutually adapted with floating trough.
4. floating seal high-pressure manifold plug valve according to claim 1, it is characterised in that the periphery of the valve rod is arranged
There is the single direction thrust ball bearing being arranged on valve body.
5. floating seal high-pressure manifold plug valve according to claim 1, it is characterised in that the valve rod, valve body with it is floating
Sealing ring is arranged with the cavity formed between movable valve plug.
6. according to any described floating seal high-pressure manifold plug valves of claim 1-5, it is characterised in that connect on the valve body
It is connected to the bonnet for fit sealing arc piece and floating plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397464.1U CN206246712U (en) | 2016-12-19 | 2016-12-19 | A kind of floating seal high-pressure manifold plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397464.1U CN206246712U (en) | 2016-12-19 | 2016-12-19 | A kind of floating seal high-pressure manifold plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206246712U true CN206246712U (en) | 2017-06-13 |
Family
ID=59008569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621397464.1U Active CN206246712U (en) | 2016-12-19 | 2016-12-19 | A kind of floating seal high-pressure manifold plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206246712U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268524A (en) * | 2018-10-15 | 2019-01-25 | 兰州高压阀门有限公司 | A kind of plug valve of adjustable valve base sealing |
| CN109357042A (en) * | 2018-10-30 | 2019-02-19 | 中石化广州工程有限公司 | A kind of plug valve sealing structure and its application method |
| CN111810663A (en) * | 2020-09-01 | 2020-10-23 | 杨煜海 | Valve with detachable valve rod |
-
2016
- 2016-12-19 CN CN201621397464.1U patent/CN206246712U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268524A (en) * | 2018-10-15 | 2019-01-25 | 兰州高压阀门有限公司 | A kind of plug valve of adjustable valve base sealing |
| CN109357042A (en) * | 2018-10-30 | 2019-02-19 | 中石化广州工程有限公司 | A kind of plug valve sealing structure and its application method |
| CN111810663A (en) * | 2020-09-01 | 2020-10-23 | 杨煜海 | Valve with detachable valve rod |
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