CN208565574U - A kind of erosion resistance angle type control valve - Google Patents
A kind of erosion resistance angle type control valve Download PDFInfo
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- CN208565574U CN208565574U CN201821111462.0U CN201821111462U CN208565574U CN 208565574 U CN208565574 U CN 208565574U CN 201821111462 U CN201821111462 U CN 201821111462U CN 208565574 U CN208565574 U CN 208565574U
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- valve
- type control
- angle type
- deck
- erosion
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Abstract
The utility model relates to a kind of erosion resistance angle type control valves, including valve body, valve seat, valve deck, valve rod and spool, valve cage assembly is fixed with above valve deck, the top guide sleeve in sealing contact with it is equipped with below the valve deck, it is formed and the matched guide channel of valve rod on the inside of the guide sleeve, outside is downwardly extending protection against erosion retaining wall in a ring, and the lower end of the protection against erosion retaining wall resists the upper end of the valve cage assembly.Compared with prior art, the utility model can effectively prevent erosion of the high-pressure fluid to parts such as valve rods, and then improve valve service life etc..
Description
Technical field
The utility model belongs to angle valve technical field, is related to a kind of erosion resistance angle type control valve.
Background technique
Angle type control valve is widely used in fluid flow regulation, and angle type control valve is in addition to valve body is angle-style, other structures
Similar with single-seat valve, feature determines that its flow path is simple, and resistance is small, is particularly conducive to high pressure drop, high viscosity, containing outstanding
The adjusting of floating object and particulate material fluid.Valve rod in traditional angle type control valve directly exposes in lower flow channel, it is easy to by
To high-pressure fluid erosion, and then lead to the channel blow-by between valve rod and valve deck, seriously affects the use of valve
Service life.
Chinese patent ZL201220394537.7 discloses a kind of anti-corrosion angle type control valve of preventing scaring, including valve body, valve seat,
Spool, valve rod, guide sleeve, valve deck, gland, filler, valve seat is affixed with valve body, which matches with spool, and guiding is placed on
On valve body, the outer rim upper surface of guide sleeve and the valve deck are in close contact, and gland and valve deck Joint, filler are placed in gland, valve
In the space that lid and valve rod three are constituted, valve rod sequentially passes through gland, valve deck and guide sleeve and is directly connected with the spool
It connects.It solves the problems, such as the erosion in valve rod and valve deck by the setting of guide sleeve to a certain extent, and still, valve rod still can be straight
High-pressure fluid erosion is received, the valve rod service life is influenced.
Utility model content
The purpose of this utility model is exactly to provide a kind of erosion resistance angle to overcome the problems of the above-mentioned prior art
Type regulating valve.
The purpose of this utility model can be achieved through the following technical solutions:
The utility model proposes a kind of erosion resistance angle type control valve, including valve body, valve seat, valve deck, valve rod and spool,
It is fixed with valve cage assembly above valve deck, the top guide sleeve in sealing contact with it, the guiding are equipped with below the valve deck
Set inside is formed and the matched guide channel of valve rod, and outside is downwardly extending protection against erosion retaining wall in a ring, the protection against erosion
The lower end of retaining wall resists the upper end of the valve cage assembly.
Further, by multilayer, successively spaced apart valve cage forms the valve cage assembly from inside to outside, every layer of valve cage
On be densely covered with throttle orifice, and the throttle orifice relative dislocation on adjacent two layers valve cage.
Further, the valve cage assembly is made of two to three layers of valve cage.
Further, the valve body built-in fluid channel, and the top of valve body inside face import is oblique equipped with protection against erosion
Face.
Further, the opening of the top elder generation hermetically passing body top of the guide sleeve, then the valve deck is resisted, and
The boundary position of the guide sleeve, valve body and valve deck three is additionally provided with the spirotallic gasket of sealing.
Further, the surface of the valve rod is additionally provided with spiral groove.
Compared with prior art, the utility model has the advantage that
(1) valve inner fluid can be effectively prevented in the setting of the protection against erosion retaining wall of part under the guide sleeve of the utility model
The high-pressure fluid in channel is directly washed away to valve rod, and then effectively reduces the erosion to valve rod, is improved the service life of valve rod, is kept away
Exempt from stem surface and uneven surface is formed by erosion, and then influences valve service life.
(2) valve cage assembly above valve seat is equipped with throttle orifice, then shifting to install using the throttle orifice on interlayer valve cage
Equal special constructions can effectively reduce fluid and wash away to spool and valve seat part, to avoid the close of spool and valve seat contact portion
Cover leads to poor sealing because excessively washing away.
(3) valve body, valve deck and guide sleeve and isostructural be equipped with of spirotallic gasket can effectively improve valve stem part
Sealing effect.
(4) setting on the protection against erosion inclined-plane of valve inner also further decreases high-pressure fluid and washes away to valve stem part, subtracts
The erosion of the components such as small valve-rod.
(5) setting of the spiral groove of stem surface, which can effectively take out of, is trapped between valve rod and guide sleeve in gap
Granulated garbage plays good anti-stem surface fouling effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the valve cage assembly of the utility model；
Fig. 3 is the schematic diagram of the valve stem part of the utility model；
Fig. 4 is the schematic diagram of the utility model another kind angle type control valve；
Description of symbols in figure:
1- valve seat, 2- valve body, 3- valve cage assembly, 31- valve cage, 32- throttle orifice, 4- valve rod, 5- valve deck, 6- guide sleeve, 7-
Spool, 8- groove, 9- protection against erosion inclined-plane, 10- spirotallic gasket.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.The present embodiment is with the utility model
Implemented premised on technical solution, the detailed implementation method and specific operation process are given, but the guarantor of the utility model
Shield range is not limited to the following embodiments.
Embodiment 1
A kind of erosion resistance angle type control valve, structure is shown in Figure 1, including valve body 2, valve seat 1, valve deck 5,4 and of valve rod
Spool 7 is fixed with valve cage assembly 3 in the top of valve deck 5, the top guide sleeve in sealing contact with it is equipped with below valve deck 5
6, it is formed on the inside of the guide sleeve 6 and is downwardly extending protection against erosion retaining wall in a ring with the matched guide channel of valve rod 4, outside,
The lower end of protection against erosion retaining wall resists the upper end of valve cage assembly 3.
Shown in Figure 2, by multilayer, successively spaced apart valve cage forms valve cage assembly 3 from inside to outside, on every layer of valve cage
It is densely covered with throttle orifice 32, and 32 relative dislocation of throttle orifice on adjacent two layers valve cage, valve cage assembly 3 is by two to three layers of valve cage group
At.
In addition, the opening at 2 top of top elder generation hermetically passing valve body of guide sleeve 6, then valve deck 5 is resisted, and guide sleeve 6, valve
The boundary position of 5 three of body 2 and valve deck is additionally provided with the spirotallic gasket 10 of sealing.
The surface of spool and valve seat in the present embodiment can also be coated with tungsten carbide coating etc., and then greatly improve spool
With the service life of valve seat.
Embodiment 2
On the basis of embodiment 1, the present embodiment further uses following design:
It is shown in Figure 4,2 built-in fluid channel of valve body, and the top of 2 inside face import of valve body is equipped with protection against erosion inclined-plane
9。
Embodiment 3
On the basis of embodiment 1 or embodiment 2, the present embodiment further uses following design:
Shown in Figure 3, the surface of valve rod 4 is additionally provided with spiral groove 8.
In the angle type control valve of the above various embodiments, structure division unless otherwise specified, then it represents that be this field
The conventional design of angle type control valve.
It can understand the above description of the embodiments is intended to facilitate those skilled in the art and use practical
It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiments without having to go through creative labor.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model scope is made and
Modification should be all within the protection scope of the utility model.
Claims (6)
1. a kind of erosion resistance angle type control valve, including valve body, valve seat, valve deck, valve rod and spool, which is characterized in that in valve deck
Top is fixed with valve cage assembly, and the top guide sleeve in sealing contact with it, guide sleeve inside are equipped with below the valve deck
It is formed and is downwardly extending protection against erosion retaining wall in a ring with the matched guide channel of valve rod, outside, the protection against erosion retaining wall
Lower end resists the upper end of the valve cage assembly.
2. a kind of erosion resistance angle type control valve according to claim 1, which is characterized in that the valve cage assembly is by multilayer
Successively spaced apart valve cage forms from inside to outside, is densely covered with throttle orifice, and the section on adjacent two layers valve cage on every layer of valve cage
Discharge orifice relative dislocation.
3. a kind of erosion resistance angle type control valve according to claim 2, which is characterized in that the valve cage assembly by two to
Three layers of valve cage composition.
4. a kind of erosion resistance angle type control valve according to claim 1, which is characterized in that the valve body built-in fluid is logical
Road, and the top of face import is equipped with protection against erosion inclined-plane on the inside of valve body.
5. a kind of erosion resistance angle type control valve according to claim 1, which is characterized in that the top of the guide sleeve is first
The opening of hermetically passing body top, then the valve deck is resisted, and the boundary position of the guide sleeve, valve body and valve deck three is also
Spirotallic gasket equipped with sealing.
6. a kind of erosion resistance angle type control valve according to claim 1, which is characterized in that the surface of the valve rod is also set
There is spiral groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821111462.0U CN208565574U (en) | 2018-07-13 | 2018-07-13 | A kind of erosion resistance angle type control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821111462.0U CN208565574U (en) | 2018-07-13 | 2018-07-13 | A kind of erosion resistance angle type control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208565574U true CN208565574U (en) | 2019-03-01 |
Family
ID=65492235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821111462.0U Active CN208565574U (en) | 2018-07-13 | 2018-07-13 | A kind of erosion resistance angle type control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208565574U (en) |
-
2018
- 2018-07-13 CN CN201821111462.0U patent/CN208565574U/en active Active
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