CN207961582U - A kind of anti-long-pending sand plug valve - Google Patents
A kind of anti-long-pending sand plug valve Download PDFInfo
- Publication number
- CN207961582U CN207961582U CN201820100561.2U CN201820100561U CN207961582U CN 207961582 U CN207961582 U CN 207961582U CN 201820100561 U CN201820100561 U CN 201820100561U CN 207961582 U CN207961582 U CN 207961582U
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- packing unit
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Abstract
The utility model is related to oil gas field construction operation equipment technical fields, specifically, it is a kind of anti-long-pending sand plug valve, including valve body, valve deck and the cock stem being arranged in valve body, valve body is connected with valve deck, the lower end of cock stem is connected with cock, a driver is arranged in valve body upper end, driver is connect with valve body, driver delivers torque to cock stem by flat key, one packing unit is set outside cock, a piston is arranged in the top of packing unit, cock, a ring packing cavity is formed between cock stem and piston, spring is set in seal cavity, piston, cock stem, packing unit and cock are respectively positioned in valve body inner core, valve body inner core is connected to an oil duct, filling hydraulic oil is used to drive the up and down motion of piston inside oil duct.Gap between the utility model packing unit and cock is adjustable, very close to each other between cock, packing unit and valve body during pressure-bearing and trandfer fluid, avoids long-pending sand.
Description
Technical field
The utility model is related to oil gas field construction operation equipment technical fields, specifically, being a kind of anti-long-pending sand plug valve.
Background technology
The structure and principle of existing plug valve be：The part that existing plug valve seals is mainly metal valve
Body, metal cock, metal sealing arcs and non-metallic seal, cock and sealing arcs inside and valve body and sealing arcs
Outside is required for realizing and seal.The runner hole of identical size is designed in valve body, cock and sealing arcs, when the runner of three
When axially bored line is conllinear, plug valve is in open state, when cock is 90 degree rotatable around its axis, the runner hole of cock and arcs and
The runner hole of valve body is in vertical state, and plug valve is closed.
Existing plug valve there are the shortcomings that and shortcoming mainly have following three：The first, the cock of existing plug valve and
It is that simple metal sealing needs the machining accuracy of both guarantees high, difficulty of processing to realize sealing between on the inside of sealing arcs
Greatly, of high cost, and be easily damaged and fail；The second, it is metal+nonmetallic sealing between sealing arcs outside and valve body, faces
Identical problem；Third, due to existing cock, sealing arcs and valve body be metal, in order to realize assembly, maintenance and
Rotation needs to ensure that there are certain gaps between three, this may result in valve inner product sand in use, and then make
Seal failure even results in whole scrap.
With increasing for China's exploitation of oil-gas field amount, the efficient pressing crack construction side such as " factory's formula " pressure break and " zip mode " pressure break
Formula is more and more, also, in order to improve the yield in later stage, the pressure of pressing crack construction is higher and higher, and operational discharge capacity is also increasingly
Greatly, the various fracturing sands for squeezing into shaft bottom also can be more and more, these volume increase construction technologies can all lead to the quick of original plug valve
Product sand, failure, increase the cost of construction.
Invention content
The utility model provides a kind of anti-long-pending sand plug valve to overcome the shortcomings of above-mentioned technical problem, with fracturing unit truck,
Straight pipe-line, three-way connection etc. are used cooperatively, and mainly for delivery of high-pressure fluids such as fracturing fluids, major function is the logical of control piper
It is disconnected, it completes oil gas field and increases production construction operation.This plug valve realizes cock, fluid sealant by the packing unit of design new construction
Gap between core and valve body is adjustable, solves the problems, such as that difficulty of processing is high, fragile and use is easy in the process and accumulates sand.
The technical solution for solving above-mentioned technical problem is as follows：
A kind of anti-long-pending sand plug valve, including valve body, valve deck and the cock stem being arranged in valve body, the valve body and valve deck
It is connected through a screw thread, the lower end of the cock stem is connected with cylindric cock, one driving of valve body upper end setting
Device, the driver are bolted connection with valve body, and the driver is connect by flat key with cock stem, described
Driver provides rotation torque, and driver delivers torque to cock stem by flat key, a cylinder is arranged outside the cock
A piston is arranged in the top of the packing unit of shape, the packing unit, and one is formed between the cock, cock stem and piston
Ring packing cavity, the seal cavity is interior to be arranged spring, and the spring is withstood between piston and cock, the work
Plug, cock stem, packing unit and cock are respectively positioned in valve body inner core, and the valve body inner core is connected to an oil duct, the oil
Road end is connect with straight coupling, and outer liquid pressure oil is input to by the straight coupling in oil duct, and then is entered on piston
In the annulus that portion and valve body bottom surface are formed, for driving piston motion.
It further says, third groove is offered on the cock stem, for installing third O-ring and third baffle ring,
First groove is offered on the external cylindrical surface of the piston, for installing the first O-ring and the first baffle ring, the first O
The both sides of shape circle are both provided with the first baffle ring, prevent the first O-ring from squeezing out for realizing two-way；On the inner surface of the piston
Second groove is offered, second groove is all provided with for installing the second O-ring and the second baffle ring, the both sides of second O-ring
It is equipped with the second baffle ring, prevents the second O-ring from squeezing out for realizing two-way.
It further says, the valve deck upper end is further opened with the 4th groove, for installing the 4th O-ring and fourth gear
Circle, the high pressure fluid leak for preventing from conveying in valve body inner core.
Further say, the packing unit be monolithic construction or split structure, the packing unit by
Rubber or engineering plastics are made.
The utility model has the beneficial effects that：
The utility model provides a kind of anti-long-pending sand plug valve, and traditional gold is replaced using the packing unit of non-metallic material
Belong to sealing arcs, and the gap between packing unit and cock is adjustable, cock, packing unit during pressure-bearing and trandfer fluid
And it is very close to each other between valve body, avoid long-pending sand.And the utility model by conventional metal sealing be changed to metal with it is nonmetallic it
Between sealing, greatly reduce sealing difficulty and difficulty of processing.
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Description of the drawings
Fig. 1 is the cross-sectional view of the utility model；
Wherein, 1 is valve body；2 be packing unit；3 be the first O-ring；4 be the first baffle ring；5 be piston；6 be the 2nd O shapes
Circle；7 be the second baffle ring；8 be third O-ring；9 be third baffle ring；10 be driver；11 be cock stem；12 be flat key；13 be bullet
Spring, 14 be cock, and 15 be straight coupling, and 16 be fourth gear circle, and 17 be the 4th O-ring, and 18 be valve deck, and 19 be oil duct, and 20 be valve
Internal core.
Specific implementation mode
Embodiment 1：
As shown in Figure 1：A kind of anti-long-pending sand plug valve, including valve body 1, valve deck 18 and the cock stem 11 being arranged in valve body 1,
Valve body 1 and valve deck 18 are connected through a screw thread, and the lower end of the cock stem 11 and cylindric cock 14 connect, the valve body
A driver 10 is arranged in 1 upper end, and the driver 10 is bolted connection with valve body 1, and the driver 10 is logical
It crosses flat key 12 to connect with cock stem 11, the driver 10 provides rotation torque, and driver 10 is passed torque by flat key 12
Cock stem 11 is passed, 14 outside setting of cock, the one cylindric packing unit 2, the top of the packing unit 2 is set
A piston 5 is set, forms a ring packing cavity between the cock 14, cock stem 11 and piston 5, in the seal cavity
Spring 13 is set, and the spring 13 is withstood between piston 5 and cock 14, the piston 5, cock stem 11,2 and of packing unit
Cock 14 is respectively positioned in valve body inner core 20, and the valve body inner core 20 is connected to an oil duct 19,19 end of oil duct with it is straight
Pass joint 15 connects, and hydraulic oil enters oil duct 19 by the straight coupling 15, and then enters 5 top of piston and 1 bottom of valve body
In the annulus that face is formed, for driving piston 5 to move.Third groove is offered on the cock stem 11, for installing
Third O-ring 8, third baffle ring 9, offer first groove and second groove on the piston 5, and first groove is for installing the
The both sides of one O-ring 3 and the first baffle ring 4, first O-ring 3 are both provided with the first baffle ring 4, are prevented for realizing two-way
The function that first O-ring 3 squeezes out, likewise, second groove is for installing the second O-ring 6 and the second baffle ring 7, the 2nd O
The both sides of shape circle 6 are both provided with the second baffle ring 7, for realizing the two-way function of preventing the second O-ring 6 from squeezing out.The valve deck
18 upper ends are further opened with the 4th groove, for installing the 4th O-ring 17 and fourth gear circle 16, for preventing in valve body inner core 20
High-pressure fluid leakage.The packing unit 2 is made of monolithic construction of rubber.
Embodiment 2：
A kind of anti-long-pending sand plug valve, including valve body 1, valve deck 18 and the cock stem 11 being arranged in valve body 1, valve body 1 and valve
Lid 18 is connected through a screw thread, and the lower end of the cock stem 11 and cylindric cock 14 connect, and 1 upper end of valve body is set
Set a driver 10, the driver 10 is bolted connection with valve body 1, the driver 10 by flat key 12 with
Cock stem 11 connects, and the driver 10 provides rotation torque, and driver 10 delivers torque to cock stem by flat key 12
11, a piston 5 is arranged in 14 outside setting of cock, the one cylindric packing unit 2, the top of the packing unit 2,
A ring packing cavity is formed between the cock 14, cock stem 11 and piston 5, and spring is set in the seal cavity
13, the spring 13 is withstood between piston 5 and cock 14, and the piston 5, cock stem 11, packing unit 2 and cock 14 are equal
In valve body inner core 20, the valve body inner core 20 is connected to an oil duct 19,19 end of oil duct and straight coupling 15
Connection, hydraulic oil enter oil duct 19 by the straight coupling 15, and then formed into 5 top of piston and 1 bottom surface of valve body
In annulus, for driving piston 5 to move.Third groove is offered on the cock stem 11, for installing third O-ring
8, third baffle ring 9 offers first groove and second groove on the piston 5, and first groove is for installing the first O-ring 3
It is both provided with the first baffle ring 4 with the both sides of the first baffle ring 4, first O-ring 3, the first O-ring is prevented for realizing two-way
3 functions of squeezing out, likewise, second groove is for installing the second O-ring 6 and the second baffle ring 7, the two of second O-ring 6
Side is both provided with the second baffle ring 7, for realizing the two-way function of preventing the second O-ring 6 from squeezing out.18 upper end of valve deck is also
The 4th groove is offered, for installing the 4th O-ring 17 and fourth gear circle 16, for preventing the high-pressure fluid in valve body inner core 20
Leakage.The packing unit 2 is made of split structure of engineering plastics.
The course of work of the utility model is as follows：
Valve body 1, cylindric packing unit 2, columned cock 14, cock stem 11 and valve deck 18 are the cores of the design
Part plays pressure-bearing and pressure control.Driver 10 is located at the upper end of valve body 1, is fastened by bolts on valve body 1, driver
10 deliver torque to cock stem 11 by flat key 12, and 11 lower end of cock stem and cock 14 are connected with each other, and cock 14 can and be revolved
Stopper rod 11 rotates together, and realizes the opening and closing of plug valve.
Hydraulic oil can enter the ring that 1 bottom of valve body and 5 top of piston are collectively formed by straight coupling 15 through oil duct 19
In shape space, as hydraulic oil constantly enters the annular space, hydraulic oil driving piston 5 is moved down, is compressed, compression seal glue
Core 2, with the compression of packing unit 2, the height of packing unit is lower, and thickness thickens, the gap quilt between cock 14 and valve body 1
It gradually fills up, prevents valve chamber internal high pressure medium from revealing.It is designed with groove on piston 5, for installing O-ring 3, baffle ring 4, O shapes
6 and baffle ring 7 are enclosed, groove is also configured on cock stem 11, for installing O-ring 8 and baffle ring 9.O-ring 3, baffle ring 4, O-ring 6,
The annular space that baffle ring 7, O-ring 8 and baffle ring 9 make valve body 1, cock stem 11 and piston 5 be collectively formed is a confined space, is prevented
Hydraulic oil leakage in this confined space.After hydraulic oil is released by straight coupling 15, spring 13 can be by 5 bullet of piston
It rises, while the shape before the recovery of packing unit 2, cock 14 is unclamped, cock 14 is allow easily to be rotated.
It is connected through a screw thread between valve deck 18 and valve body 1, and groove is designed on valve deck 18, for installing 17 He of O-ring
Baffle ring 16 prevents the high-pressure fluid inside valve chamber from leaking outside.
It drives piston 5 to move down by hydraulic oil, compresses, compresses packing unit 2, it is close with the compression of packing unit 2
The height of sealing core 2 is lower, and thickness thickens, and the gap between cock 14 and valve body 1 is increasingly filled, and prevents valve chamber internal high pressure
Medium is revealed, and realizes valve seal.After hydraulic oil releases, spring 13 can bounce piston 5, and packing unit 2 is made to restore
Shape before unclamps cock 14, and cock 14 is allow easily to be rotated.It is adjustable that entirety realizes gap, that is, works as needs
When rotating cock, pressure is released, makes have gap between valve body 1, packing unit 2 and cock 14, it can be with ease rotation cock；When need
Want very close to each other between valve body 1, packing unit 2 and cock 14, it, can be by injecting hydraulic pressure into system when meeting seal request
Oil, driving piston 5, which moves down, compresses packing unit 2 to realize, due in this sealing state lower valve body 1, packing unit 2 and cock
It is very close to each other between 14, it can effectively avoid long-pending sand, lift-off seal effect and service life.
Valve body 1, cylindric packing unit 2 and columned cock 14, this three parts are the cores of the utility model
Point, valve body 1 is main body, for installing remaining parts, and bears internal pressure.Packing unit 2 and cock 14 are main sealings
Part, by controlling machining accuracy and using special processing technology, the finish of the inner cavity of valve body 1 is very high, the surface of cock 14
Finish and case hardness are also very high, these all contribute to realize sealing requirement, packing unit when bearing axial compressive force,
Wall thickness can become larger, and help to fill the gap between valve body 1 and cock 14, realize the function of sealing and anti-long-pending sand.
Driver 10 can provide rotation torque, be connected by flat key 12 between driver 10 and cock stem 11, driver
Torque can pass to cock stem by flat key, and then cock 14 is driven to rotate.State as shown in Figure 1 is the unlatching of plug valve
State, when driver 10 works, when the torque of output passes to cock stem 11 by flat key 12, cock stem 11 will pass torque
Cock 14 is passed, and then cock 14 is driven to rotate, after cock 14 rotates 90 degree, on the runner hole and valve body in cock 14
Runner hole is in the state being mutually perpendicular to staggeredly, reaches the sealing station of plug valve.
Hydraulic oil can enter the annular that valve body 1, cock stem 11 and piston 5 are collectively formed by straight coupling 15 through oil duct
In space, as hydraulic oil constantly enters the annular space, hydraulic oil driving piston 5 is moved down, is compressed, compression seal glue core
2, with the compression of packing unit 2, the height of packing unit is lower, and thickness thickens, the gap between cock 14 and valve body 1 by by
It gradually fills up, prevents valve chamber internal high pressure medium from revealing.It is designed with groove on piston 5, for installing O-ring 3, baffle ring 4, O-ring 6
With baffle ring 7, groove is also configured on cock stem 11, for installing O-ring 8 and baffle ring 9.O-ring 3, baffle ring 4, O-ring 6, baffle ring
7, the annular space that O-ring 8 and baffle ring 9 make valve body 1, cock stem 11 and piston 5 be collectively formed is a confined space, prevents this
Hydraulic oil leakage in confined space.After hydraulic oil is released by straight coupling 15, spring 13 can bounce piston 5,
Shape before packing unit 2 restores simultaneously, cock 14 is unclamped, cock 14 is allow easily to be rotated.
Below as expanding, the utility model is described as follows：
1, the utility model can be by entirety as a kind of improvement to the utility model using integral seal glue core
Formula glue core is changed to split type, also belongs to the point to be protected of this patent.
2, piston is driven to compress and compression seal glue core by hydraulic oil in the utility model, as to the utility model
A kind of improvement, be changed to other non-hydraulic type of drive such as mechanical, pneumatic type to realize identical function, also belong to this Shen
It please be in the appended claims limited range.
3, the utility model is to drive piston to move up by spring, realizes the reset of packing unit, likewise, using it
His mode realizes this identical function, also belongs in the scope of the appended claims of the present application.
4, the cock in the utility model is cylindrical design, and packing unit is cylindric design, and body cavity is also round
Columnar design, as an improvement design, can be designed as the non-cylindrical such as circular cone by cock, packing unit and body cavity
Design, also belongs in the scope of the appended claims of the present application.
5, the plug valve in the utility model provides rotation torque using driver, and driving cock rotation changes as one kind
Into design, the type of drive of the other forms such as driver is pneumatic, electronic, mechanical structure also belongs to right appended by the application
In claim limited range.
6, using threaded connection between the valve deck and valve body in the utility model, as an improvement, threaded connection is changed
For other connection types such as bolt fastenings, also belong in the scope of the appended claims of the present application.
7, the sealing means in the utility model are all the forms using O-ring+baffle ring combination sealing, for this profession
Technical staff for, realize identical sealing, there is many seal forms, do other change, also belong to the application institute
In attached claims limited range.
Claims (4)
1. a kind of anti-long-pending sand plug valve, including valve body, valve deck and the cock stem being arranged in valve body, which is characterized in that described
Valve body and valve deck are connected through a screw thread, and the lower end of the cock stem is connected with cylindric cock, the valve body upper end
One driver is set, and the driver is bolted connection with valve body, and the driver passes through flat key and cock stem
Connection, the driver provide rotation torque, and driver delivers torque to cock stem by flat key, outside the cock
One cylindric packing unit is set, and a piston, the cock, cock stem and piston is arranged in the top of the packing unit
Between form a ring packing cavity, spring is set in the seal cavity, the spring is withstood between piston and cock,
Piston, cock stem, packing unit and the cock is respectively positioned in valve body inner core, and the valve body inner core is connected to an oil duct,
The oil duct end is connect with straight coupling, and outer liquid pressure oil is input to by the straight coupling in oil duct, Jin Erjin
Enter in upper piston area and the annulus of valve body bottom surface formation, for driving piston motion.
2. anti-long-pending sand plug valve according to claim 1, which is characterized in that offer third ditch on the cock stem
Slot offers first groove, for installing for installing third O-ring and third baffle ring on the external cylindrical surface of the piston
The both sides of first O-ring and the first baffle ring, first O-ring are both provided with the first baffle ring, and is prevented for realizing two-way
One O-ring squeezes out；Offer second groove on the inner surface of the piston, second groove is for installing the second O-ring and the
The both sides of two baffle rings, second O-ring are both provided with the second baffle ring, prevent the second O-ring from squeezing out for realizing two-way.
3. anti-long-pending sand plug valve according to claim 1, which is characterized in that the valve deck upper end is further opened with the 4th
Groove, for installing the 4th O-ring and fourth gear circle, the high pressure fluid leak for preventing from conveying in valve body inner core.
4. anti-long-pending sand plug valve according to claim 1, which is characterized in that the packing unit be monolithic construction or
Person's split structure, the packing unit are made of rubber or engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820100561.2U CN207961582U (en) | 2018-01-22 | 2018-01-22 | A kind of anti-long-pending sand plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820100561.2U CN207961582U (en) | 2018-01-22 | 2018-01-22 | A kind of anti-long-pending sand plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961582U true CN207961582U (en) | 2018-10-12 |
Family
ID=63734282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820100561.2U Withdrawn - After Issue CN207961582U (en) | 2018-01-22 | 2018-01-22 | A kind of anti-long-pending sand plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207961582U (en) |
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