CN105485419B - A kind of control valve of protection against erosion - Google Patents
A kind of control valve of protection against erosion Download PDFInfo
- Publication number
- CN105485419B CN105485419B CN201510990163.3A CN201510990163A CN105485419B CN 105485419 B CN105485419 B CN 105485419B CN 201510990163 A CN201510990163 A CN 201510990163A CN 105485419 B CN105485419 B CN 105485419B
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- CN
- China
- Prior art keywords
- valve
- seat
- control valve
- protection against
- coal
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
Abstract
The present invention relates to a kind of control valve of protection against erosion.Including valve element (1) and valve seat (2), it is characterized in：Diversion seat (3) is installed in the medium runner of the valve seat (2) bottom, and at least two throttling elements (4) are installed in diversion seat (3) bottom.In order to prevent that coal from producing vortex in valve seat lower end and valve seat bottom is washed away by coal, turbine type diversion seat is designed in the control valve of the present invention below valve seat, when high speed coal flows to diversion seat upper surface, four parts are divided into due to being designed as circular conical surface at this, and by flap, coal will change flow direction rapidly, with cone-shaped angle at 45 °, flow through diversion seat and enter throttling element, simultaneously because flap structure design, can effectively prevent coal from producing vortex in valve pocket.
Description
Technical field
It the utility model is related to a kind of control valve of protection against erosion.
Background technology
The valve element valve seat that uses of regulating valve of coal pump minimum discharge regulation operating mode is currently used in as parabola single seat
Valve element and Venturi tube structure valve seat, the valve element valve seat of the structure can realize the featuring rigid cutting-off and tune of working condition requirement in a short time
Performance is saved, but under 24MPa pressure differences, service life is short, easily causes valve body middle chamber easily to block, and a period of time valve element is used continuously
Type face and sealing pair wash away seriously, and leakage leads to not realize pressurize, loses adjustment effect.Even directly rushed after valve seat washes away
Brush valve body, it can not such as find in time, it will leak outside, cause coal device for producing hydrogen to stop.
Utility model content
The purpose of this utility model is to provide a kind of control valve of protection against erosion, can significantly improve High Pressure Difference coal operating mode
The defects of valve element valve seat of lower control valve is washed, service life is short, and it is easily stifled to avoid anchor ring product between valve element and valve seat
Plug problem, additionally it is possible to prevent coal from producing vortex in control valve valve pocket, effectively control coal in control valve exit
Flow velocity.
A kind of control valve of protection against erosion, including valve element and valve seat, it is particular in that：In the medium of the seat bottom portion
Diversion seat is installed in runner, and at least two throttling elements are installed in the diversion seat bottom.
Wherein diversion seat includes cross frame, and four right angle joints on the cross frame are equipped with flap, and
And the surface contacted on the flap with medium is circular conical surface.
Wherein throttling element includes annulus, 4 through holes is provided with the inwall of the annulus, and 4 are provided with annulus outer wall
Individual boss.
Wherein the material of diversion seat and throttling element uses Talide.
The linear window of Unsymmetrical Parabolic is wherein provided with the valve seat, the valve element is from the bottom to top successively by sealing bottom
Seat, axostylus axostyle and transmission cuboid composition, the flow breach of 90 ° of angles is provided with the side of the sealed base.
Wherein acute angle blade is provided with the flow indentation, there of sealed base.
Wherein valve element uses diamondite material.
The change of the wherein linear window area of Unsymmetrical Parabolic meets equal percentage characteristics curve with valve opening increase.
Wherein the linear window of Unsymmetrical Parabolic is linear in Unsymmetrical Parabolic, and linear window of the Unsymmetrical Parabolic or so circle
Angle between arc and valve seat axis center is 100 °.
Valve core structure is designed using 90 ° of V-arrangement wedge-shaped working edges in control valve of the present utility model, and convenient removing valve base surface is attached
Thing.Valve seat uses the linear window design of Unsymmetrical Parabolic, realizes the big stroke adjustment of low discharge.Test proves that effectively solve
Coal of having determined is washed away to valve element valve base sealing pair, and the valve of only 90 ° angles is concentrated on additionally, due to identical orifice size
On seat, easy blockage problem is accumulated so as to avoid anchor ring between venturi single-seat angle valve valve element and valve seat.
In addition to preventing that coal from producing vortex in valve seat lower end and valve seat bottom is washed away by coal, this practicality is new
Turbine type diversion seat is designed in the control valve of type below valve seat, when high speed coal flows to diversion seat upper surface, due to this
Place is designed as circular conical surface, and is divided into four parts by flap, and coal will change flow direction rapidly, at 45 ° with cone-shaped
Angle, flow through diversion seat and enter throttling element, simultaneously because flap structure design, can effectively prevent coal from being produced in valve pocket
Vortex.In order to reduce flow velocity of the coal in control valve exit, opposite-flushing type section is have also been devised in control valve of the present utility model
Part is flowed to change the flow direction of coal, and four holes of the coal on by throttling element circumference liquidate mutually, consumption oil
The kinetic energy of coal slurry, the flow velocity at control valve valve outlet is reduced, after two-stage throttling element and diversion seat, the flow velocity of coal can be with
Control safety flow velocity (10m/s) below.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the structural representation of diversion seat 3 in the utility model；
Accompanying drawing 3 is the structural representation of throttling element 4 in the utility model.
Accompanying drawing 4 is the structural representation of valve seat 2 in the utility model；
Accompanying drawing 5 is the sectional view of valve seat 2 in the utility model；
Accompanying drawing 6 is the structural representation of valve element 1 in the utility model；
Accompanying drawing 7 is the left view of valve element 1 in the utility model.
Embodiment
As shown in Figure 1, 2, 3, the utility model provides a kind of new oil coal slurry pump control valve, including valve element 1 and valve
Seat 2, diversion seat 3 is provided with the medium runner of the bottom of valve seat 2, and is provided with two throttlings in the bottom of diversion seat 3
Part 4.Wherein diversion seat 3 includes cross frame, and four right angle joints on the cross frame are equipped with flap 5, and
The surface contacted on the flap 5 with medium is circular conical surface, and valve is pressed abd fixed on by diversion seat 3 between throttling element 4 and valve seat 2
In vivo.
Wherein throttling element 4 includes annulus, and four through holes 6 (being symmetrically and evenly distributed) are provided with the inwall of the annulus, and
(symmetrically and evenly it is distributed, main function is to allow homogeneous media to prevent from being situated between by throttling element provided with four boss 7 on annulus outer wall
Matter flow direction is caused when changing to be washed away to throttling element).
Application method and operation principle of the present utility model are：
When high speed coal flows to 3 upper surface of diversion seat in valve seat 2, because (four surfaces of flap 5) is equal at this
Circular conical surface is designed to, and four parts are divided into by flap 5, coal will change flow direction rapidly, at 45 ° with cone-shaped
Angle, enter throttling element 4 so as to flow through diversion seat 3, simultaneously because the structure design of flap 5, can effectively prevent coal
Vortex is produced in valve pocket.Into after throttling element 4, due to coal can be changed using opposite-flushing type throttling element of the present utility model
Flow direction, four holes of the coal on by the annulus of throttling element 4 liquidate mutually, consume the kinetic energy of coal, reduce control
Flow velocity at valve valve outlet, test proves that, after two-stage throttling element 4 and diversion seat 3, the flow velocity of coal can control
Safety flow velocity (10m/s) below.Diversion seat and throttling element material in the utility model use Talide, lead
Flow seat to design using turbotype structure, throttling element uses opposite-flushing type sleeve design, realizes successively decreasing for flow velocity.
As shown in FIG. 4,5,6, 7, the utility model provides a kind of control valve of protection against erosion, including passes through anglec of rotation stroke
The valve element 1 and valve seat 2 coordinated, and both face contacts are acted, the linear window conduct of Unsymmetrical Parabolic is provided with the valve seat 2
Flow window, the change of its area are added to approximate equal percentage characteristics curve with valve opening, and the shape of valve element 1 is by cylinder
Sealed base, axostylus axostyle and the transmission cuboid of shape form, and sealed base bottom is provided with the flow breach of 90 ° of angles, and it is logical
The axostylus axostyle and transmission cuboid for crossing cylinder link into an integrated entity.
The flow indentation, there of wherein close 90 ° of the back cover seat bottom angle of valve element 1 is set (with sealing surface contact site on valve seat 2)
There is acute angle blade, the blade can effectively strike off the coal for being bonded at the upper surface of valve seat 2, and sealed base and axostylus axostyle and transmission are rectangular
Body is formed by whole tungsten carbide alloy compacting sintering.The flow window of valve seat 2 is linear in Unsymmetrical Parabolic, the window or so circular arc
Angle between axis center is 100 °, is the dynamic Contact between face and face between the top of valve seat 2 and the bottom of valve element 1, valve seat 2
On pin-and-hole for being positioned with sleeve.
Application method and operation principle of the present utility model are：
Problem, this reality are washed away by high pressure high flow rate coal in order to solve the valve seat 2 of ARC coal angle type control valves valve element 1
Anglec of rotation stroke action mode is designed as with new regulating valve, valve seat 2 is designed as asymmetric equal percentage curve shape window, work(
The big stroke adjustment of low discharge can be mainly realized, if using venturi single-seat angle valve structure design, shape between valve element 1 and valve seat 2
Into small annular gap particularly under small guide vane only have 1mm it is even more small, easily cause coal to be gathered in body cavity,
And use the valve seat 2 of new structure and the angle valve of the structure of valve element 1, then the generation of the problem can be effectively prevented, because the He of valve element 1
The flow window minimum dimension formed between valve seat 2 is all in more than 2mm；Valve element 1 is designed as lacking with the contact position of valve seat 2 and 90 ° of V-arrangements
Kou Chu lower surfaces are designed as acute angle, and the purpose of being designed here as 90 ° of breach is to meet 90 ° of rotating distance requirements, and lower end is designed as sharp
The purpose of angle blade is to remove the coal for being attached to the upper surface of valve seat 2 at any time, prevents that coal from entering valve seat 2 and valve element 1 contacts
Seal failure caused by face.
Claims (7)
1. a kind of control valve of protection against erosion, including valve element（1）And valve seat（2）, it is characterised in that：In the valve seat（2）Bottom
Diversion seat is installed in medium runner（3）, and in the diversion seat（3）Bottom is provided with least two throttling elements（4）；
Wherein in the valve seat（2）On be provided with the linear window of Unsymmetrical Parabolic, the valve element（1）From the bottom to top successively by sealing bottom
Seat, axostylus axostyle and transmission cuboid composition, the flow breach of 90 ° of angles is provided with the side of the sealed base；
The change of the wherein linear window area of Unsymmetrical Parabolic meets equal percentage characteristics curve with valve opening increase.
A kind of 2. control valve of protection against erosion as claimed in claim 1, it is characterised in that：Wherein diversion seat（3）Including cross-shaped
Frame, four right angle joints on the cross frame are equipped with flap（5）, and the flap（5）It is upper to be contacted with medium
Surface be circular conical surface.
A kind of 3. control valve of protection against erosion as claimed in claim 1, it is characterised in that：Wherein throttling element（4）Including annulus,
The inwall of the annulus is provided with 4 through holes（6）, and 4 boss are provided with annulus outer wall（7）.
A kind of 4. control valve of protection against erosion as claimed in claim 1, it is characterised in that：The wherein material of diversion seat and throttling element
Use Talide.
A kind of 5. control valve of protection against erosion as claimed in claim 1, it is characterised in that：Wherein in the flow breach of sealed base
Place is provided with acute angle blade.
A kind of 6. control valve of protection against erosion as claimed in claim 1, it is characterised in that：Wherein valve element（1）Closed using tungsten carbide
Golden material.
A kind of 7. control valve of protection against erosion as described in any one in claim 1 to 6, it is characterised in that：It is wherein asymmetric
Parabola shaped window is linear in Unsymmetrical Parabolic, and linear window of the Unsymmetrical Parabolic or so circular arc and valve seat（2）Axis center
Between angle be 100 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990163.3A CN105485419B (en) | 2015-12-25 | 2015-12-25 | A kind of control valve of protection against erosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510990163.3A CN105485419B (en) | 2015-12-25 | 2015-12-25 | A kind of control valve of protection against erosion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105485419A CN105485419A (en) | 2016-04-13 |
| CN105485419B true CN105485419B (en) | 2018-03-30 |
Family
ID=55672591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510990163.3A Active CN105485419B (en) | 2015-12-25 | 2015-12-25 | A kind of control valve of protection against erosion |
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| Country | Link |
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| CN (1) | CN105485419B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4413646A (en) * | 1981-05-01 | 1983-11-08 | Exxon Research And Engineering Co. | Streamline coal slurry letdown valve |
| CN201651343U (en) * | 2010-05-07 | 2010-11-24 | 上海开维喜阀门集团有限公司 | Black water regulating valve |
| CN102767631A (en) * | 2011-05-05 | 2012-11-07 | 上海威含德石油机械设备有限公司 | Orifice-plate type adjustable throttle valve and manufacturing method thereof |
| CN102913635A (en) * | 2012-11-01 | 2013-02-06 | 京东大型阀门有限公司 | Valve clack, valve core and opening-closing valve |
| CN204459179U (en) * | 2015-01-09 | 2015-07-08 | 芜湖市金贸流体科技股份有限公司 | A kind of venturi angle type control valve |
| CN205446913U (en) * | 2015-12-25 | 2016-08-10 | 吴忠仪表有限责任公司 | Control valve |
-
2015
- 2015-12-25 CN CN201510990163.3A patent/CN105485419B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4413646A (en) * | 1981-05-01 | 1983-11-08 | Exxon Research And Engineering Co. | Streamline coal slurry letdown valve |
| CN201651343U (en) * | 2010-05-07 | 2010-11-24 | 上海开维喜阀门集团有限公司 | Black water regulating valve |
| CN102767631A (en) * | 2011-05-05 | 2012-11-07 | 上海威含德石油机械设备有限公司 | Orifice-plate type adjustable throttle valve and manufacturing method thereof |
| CN102913635A (en) * | 2012-11-01 | 2013-02-06 | 京东大型阀门有限公司 | Valve clack, valve core and opening-closing valve |
| CN204459179U (en) * | 2015-01-09 | 2015-07-08 | 芜湖市金贸流体科技股份有限公司 | A kind of venturi angle type control valve |
| CN205446913U (en) * | 2015-12-25 | 2016-08-10 | 吴忠仪表有限责任公司 | Control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105485419A (en) | 2016-04-13 |
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