CN206449226U - A kind of new ceramics rotary valve - Google Patents
A kind of new ceramics rotary valve Download PDFInfo
- Publication number
- CN206449226U CN206449226U CN201621212572.7U CN201621212572U CN206449226U CN 206449226 U CN206449226 U CN 206449226U CN 201621212572 U CN201621212572 U CN 201621212572U CN 206449226 U CN206449226 U CN 206449226U
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- valve
- ceramic
- bonnet
- flap
- pad
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Abstract
The utility model discloses a kind of new ceramics rotary valve, bonnet and valve body including mutual cooperation, actuator is installed on bonnet top surface, runner hole and mounting hole are offered on the bonnet, ceramic valve seat is flush-mounted in bonnet runner hole, valve rod is installed in bonnet mounting hole, and one end is connected by connecting rod with actuator, the affixed rocking arm tail end of the valve rod other end, there is rocking arm head end a band cavity to connect rod structure, to coordinate grafting with ceramic flap, pad and preloading spring are provided with the connecting pole cavity from the bottom to top, the connecting pole cavity floor is provided with a screwed hole, set screw is adjustably installed in the screwed hole and compresses pad；The ceramic valve seat is aluminium oxide ceramics, and ceramic flap is zirconia ceramics.The utility model effectively improves rotary valve sealing property and service life by being improved to valve seal auxiliary structure, stable, easy to maintenance, and the abrasive medias such as thermal power plant's ash-transmission system, metallurgy, mine that are particularly suitable for use in enter blowing operating mode.
Description
Technical field
The utility model is related to valve field, and in particular to a kind of easy to maintenance, stable, service life length new
Ceramic rotary valve.
Background technology
On current thermal power plant's ash-transmission system, the high wear medium blanking operating mode pipeline of industry such as metallurgy, mine, rotation is widely used
Rotary valve as unloading valve or enter, control feeding valve etc., and in recent years, with wearability ceramic material valve seat, the pottery of flashboard
Porcelain rotary valve, is gradually received by market, and it is adaptive to severe applying working condition compared to conventional metals rotary valve, uses the longevity
Life has also extended.However, changing due to washing away very big, working temperature, the reason, the existing ceramic rotary in market such as particle agglomerate bite
Sealing surface wear leakage, collocation structure ageing failure still occurs in rotary valve after operation a period of time, it is impossible to which normal operation is asked
Topic, and need to dismantle whole deck valve door and changed, inconvenient maintenance influences system stable operation, increase production cost.
Utility model content
The purpose of this utility model is to provide a kind of good seal performance, reliability high, easy to maintenance, service life length
New ceramics rotary valve.
To achieve the above object, the utility model uses following technical scheme：
A kind of new ceramics rotary valve, including valve body, bonnet, actuator, connecting rod, valve rod, rocking arm, ceramic flap, ceramics
Valve seat, set screw, pad and preloading spring, the body top connect bonnet, and the actuator is installed on bonnet top surface, institute
Stating bonnet has runner hole and mounting hole, and the ceramic valve seat is flush-mounted in the runner hole of bonnet, and the valve rod is installed on bonnet
Mounting hole in, and valve rod one end is connected by connecting rod with actuator, and the affixed rocking arm tail end of the valve rod other end, rocking arm head end has
The one connection rod structure with cavity, is provided with from the bottom to top with coordinating with the ceramic flap in grafting, the cavity of the connecting pole
Pad and preloading spring, the cavity floor of the connecting pole are provided with a screwed hole, and the set screw is adjustably installed on described
In screwed hole and compress the pad.
Further, thrust bearing is provided with the mounting hole of the bonnet, valve rod stage casing opens up stage portion, is accordingly installed on
On the thrust bearing.Reduce and rub and make axle with one heart, reduction opens and closes operation moment of torsion, valve opening and closing is smooth.
Further, the ceramic flap is made up of ceramic annular flap and metallic disc-shaped pedestal, the metallic disc-shaped base
Annular groove is offered near the circumference of seat top, annular groove bottom land is provided with cushion pad, and ceramics annular flap is flush-mounted in the annular groove, and
With ceramic valve seat fitted seal；The metallic disc-shaped pedestal bottom circle centre position is provided with connecting hole, matches somebody with somebody with the connecting pole of the rocking arm
Close grafting.By increasing cushion pad, cushioning effect is played to the impact of agglomerate media particle, it is to avoid ceramic flap cracking damage.
Preferably, the inclined inclination of circumferential end surfaces on the metallic disc-shaped pedestal top.Oblique angle structure is conducive to rooting out
The material that bonnet runner hole wall edge may accumulate, it is ensured that the normal even running of valve.
Preferably, the pad center is also extended with a vertical bar portion, and preloading spring is sheathed in the bar portion of the pad.
Acted on by the auxiliary centering of bar portion, it is to avoid preloading spring deviation weares and teares.
Further, on the bonnet and valve body mating surface, the movement locus of ceramic flap is driven along rocking arm, is also set up
There is ceramic guide rail.Bonnet is avoided to abrade, it is ensured that valve even running.
Further, the ceramic flap is zirconia ceramics flap, and the ceramic valve seat is aluminium oxide ceramics valve seat.It is logical
Cross flap, valve seat and use ceramics not of the same race, form difference of hardness, be difficult to kill during keying, it also avoid because rubbing on sealing surface
Penetrability cut is produced, ceramic rotary valve traveling comfort and service life is effectively increased.
After adopting the above technical scheme, the utility model has the following advantages that：
Due to setting preloading mechanism with adjustable between rocking arm and ceramic flap, sealing surface can neatly be adjusted by set screw
Preload pressure, it is assembling, easy to maintenance, while the sealing pair matching design of ceramic flap and ceramic valve seat is improved, compared to tradition
The consistent ceramic seal face of hardness, is effectively reduced abrasion, improves service life.
Brief description of the drawings
Fig. 1 is the structure partial schematic cross-sectional view of the utility model embodiment one.
Fig. 2 is sectional view at the A of embodiment one.
Fig. 3 is the ceramic valve seat of the utility model embodiment two, flap, rocking arm fit structure partial schematic diagram.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing, to this reality
It is further elaborated with new.It should be appreciated that specific embodiment described herein is only to explain that this practicality is new
Type, is not used to limit the utility model.
Embodiment 1：
As shown in Figure 1, 2, the ceramic rotary valve of the utility model, including bonnet 1, valve body 2, actuator 3, connecting rod 4, valve rod 5,
Rocking arm 6, ceramic flap 7, ceramic valve seat 8, pad 9, preloading spring 10 and set screw 11, the top of the valve body 2 connection bonnet
1, electric and pneumatic actuator 3 is installed on the top surface of bonnet 1 by connecting shaft 31, and runner hole is offered on the bonnet 1
110 and mounting hole 120, the inner side upper and lower side of mounting hole 120 respectively sets a taper roller thrust bearing 121, and the stage casing of valve rod 5 opens up platform
Rank portion 50, is installed on thrust bearing 121 with corresponding cooperation, and on the one hand the setting of thrust bearing ensure that the concentric of stem shaft
Degree, is on the other hand converted into rolling friction by sliding friction, effectively reduces operation moment of torsion, make valve opening and closing smooth；Valve rod 5 is whole
Body is installed in the mounting hole 120 of bonnet by the way that gland 51 is firm, and one end is connected by connecting rod 4 with actuator 3, the other end
Affixed by clamp nut 52 and the tail end of rocking arm 6, the head end of rocking arm 6 has a connecting pole 61 with cavity, to match somebody with somebody with ceramic flap 7
Grafting is closed, the cavity floor of connecting pole 61 is provided with a screwed hole, and is sequentially provided with pad 9 and pretension bullet in cavity from the bottom to top
Spring 10, the top of preloading spring 10 compresses the ceramic bottom of flap 7, and machine-processed rice set screw 11 is adjustably installed in the screwed hole simultaneously
The bottom of pad 9 is compressed, and then adjustable preloading spring 10 is elastic, so as to control sealing surface pretension than pressure, assembles, easy to maintenance；
Ceramic valve seat 8 is flush-mounted in the runner hole 110 of the bonnet, is coordinated with ceramic flap 7 and is collectively constituted valve seal pair, the pottery
Porcelain flap 7 is preferred to use zirconia ceramics, and the ceramic valve seat 8 is preferred to use aluminium oxide ceramics, by designing about 1.5-3 degree
HRA difference of hardness, it is to avoid sealing surface produces friction cut, effectively improves service life.
Embodiment 2：
Its is substantially the same manner as Example 1, and difference is：As shown in figure 3, ceramic flap is by ceramic annular flap 71 and dish type
Metal base 72 is constituted, and the bottom circle centre position of metallic disc-shaped pedestal 72 is provided with connecting hole, coordinates grafting with rocking arm connecting pole 61；
Annular groove is offered near the metallic disc-shaped pedestal top circumference, annular groove bottom land is provided with cushion pad 721, ceramics annular flap 71
Be flush-mounted in the annular groove, and with the fitted seal of ceramic valve seat 8, the circumferential end surfaces 720 on the top of metallic disc-shaped pedestal 72 are in
Angled bevel shape, be conducive to shoveling into, strike off the viscous material particles on runner hole port wall edge, it is ensured that valve even running；Institute
State the center of pad 9 and be extended with a vertical bar portion 90, preloading spring 10 is sheathed in the pad bar portion 90, plays certralizing ability,
Prevent preloading spring deviation, abrasion because of twisting；On the bonnet 1 and valve body mating surface, ceramic flap 71 is driven along rocking arm
Movement locus, be additionally provided with ceramic guide rail 13, further enhance running stability, prevent bonnet from wearing and tearing.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed
Change or replacement, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is defined by scope of the claims.
Claims (7)
1. a kind of new ceramics rotary valve, it is characterised in that including valve body, bonnet, actuator, connecting rod, valve rod, rocking arm, ceramic valve
Valve, ceramic valve seat, set screw, pad and preloading spring, the body top connect bonnet, and the actuator is installed on bonnet
Top surface, the bonnet has runner hole and mounting hole, and the ceramic valve seat is flush-mounted in the runner hole of bonnet, and the valve rod is installed
In the mounting hole of bonnet, and valve rod one end is connected by connecting rod with actuator, the affixed rocking arm tail end of the valve rod other end, rocker head
End has a connection rod structure with cavity, with the ceramic flap coordinate in grafting, the cavity of the connecting pole by it is lower extremely
Pad and preloading spring are provided with, the cavity floor of the connecting pole is provided with a screwed hole, and the set screw is adjustably installed
In the screwed hole and compress the pad.
2. a kind of new ceramics rotary valve as claimed in claim 1, it is characterised in that：It is provided with and pushes away in the mounting hole of the bonnet
Power bearing, valve rod stage casing opens up stage portion, is accordingly installed on the thrust bearing.
3. a kind of new ceramics rotary valve as claimed in claim 1 or 2, it is characterised in that：The ceramic flap is by ceramic ring
Annular groove is offered near shape flap and metallic disc-shaped pedestal composition, the metallic disc-shaped pedestal top circumference, annular groove bottom land is set
Have a cushion pad, ceramics annular flap is flush-mounted in the annular groove, and with ceramic valve seat fitted seal；Under the metallic disc-shaped pedestal
Portion's circle centre position is provided with connecting hole, coordinates grafting with the connecting pole of the rocking arm.
4. a kind of new ceramics rotary valve as claimed in claim 3, it is characterised in that：The circle on the metallic disc-shaped pedestal top
All inclined inclinations of end face.
5. a kind of new ceramics rotary valve as claimed in claim 4, it is characterised in that：The pad center is also extended with one and hung down
Straight-bar portion, preloading spring is sheathed in the bar portion of the pad.
6. a kind of new ceramics rotary valve as claimed in claim 5, it is characterised in that：In the bonnet and valve body mating surface
On, the movement locus of ceramic flap is driven along rocking arm, ceramic guide rail is additionally provided with.
7. a kind of new ceramics rotary valve as described in claim 1 to 2,4 to 6 any one, it is characterised in that：The ceramic valve
Valve is zirconia ceramics flap, and the ceramic valve seat is aluminium oxide ceramics valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621212572.7U CN206449226U (en) | 2016-11-10 | 2016-11-10 | A kind of new ceramics rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621212572.7U CN206449226U (en) | 2016-11-10 | 2016-11-10 | A kind of new ceramics rotary valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206449226U true CN206449226U (en) | 2017-08-29 |
Family
ID=59661854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621212572.7U Active CN206449226U (en) | 2016-11-10 | 2016-11-10 | A kind of new ceramics rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206449226U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939995A (en) * | 2017-09-21 | 2018-04-20 | 郑立新 | discharge valve |
| CN111336270A (en) * | 2020-03-12 | 2020-06-26 | 河南鼎盛铝业有限公司 | Pneumatic wear-resistant ceramic rotary slag discharge valve |
-
2016
- 2016-11-10 CN CN201621212572.7U patent/CN206449226U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939995A (en) * | 2017-09-21 | 2018-04-20 | 郑立新 | discharge valve |
| CN111336270A (en) * | 2020-03-12 | 2020-06-26 | 河南鼎盛铝业有限公司 | Pneumatic wear-resistant ceramic rotary slag discharge valve |
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