CN206600487U - Eccentric rotary valve - Google Patents
Eccentric rotary valve Download PDFInfo
- Publication number
- CN206600487U CN206600487U CN201720271270.5U CN201720271270U CN206600487U CN 206600487 U CN206600487 U CN 206600487U CN 201720271270 U CN201720271270 U CN 201720271270U CN 206600487 U CN206600487 U CN 206600487U
- Authority
- CN
- China
- Prior art keywords
- valve
- eccentric rotary
- seat
- core assembly
- rotary valve
- Prior art date
- 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.)
- Active
Links
- 239000000945 filler Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000011159 matrix material Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 2
- 238000003763 carbonization Methods 0.000 claims 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 abstract description 7
- 239000003245 coal Substances 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 239000002609 medium Substances 0.000 description 12
- 239000007787 solid Substances 0.000 description 5
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical group [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The utility model discloses a kind of eccentric rotary valve, including valve body (1), core assembly (3), valve rod (4), valve seat trim ring (5), filler seat (6), medium inlet (100) and media outlet (200) are provided with the valve body, it is characterized in that, also include valve seat (2) and core assembly (3), antiscour sealing surface structure is used between the valve seat (2) and the core assembly (3).So as to solve it is of the prior art can not resist long-time erosion corrosion and very short service life the problem of.Therefore medium erosion can effectively be resisted, it is ensured that the long-term operation of coal chemical engineering equipment.
Description
Technical field
The utility model is related to a kind of pipe control valve, more particularly to one kind is used for adjusting or cutting off in coal chemical industry system
Heisui River, pulp water and grey aqueous medium can change valve core type eccentric rotary valve online.
Background technology
It is used to control the regulating valve applying working condition of Heisui River, pulp water and buck harsh in coal chemical industry system, fluid media (medium)
Middle solids content is high and with severe corrosive.Simply the surfacing on valve element is hard for the existing eccentric rotary valve for above-mentioned operating mode
Matter alloy, alloy layer thickness is relatively thin, it is impossible to resist prolonged erosion corrosion, and service life is very short.Existing structure is in valve element 3
Flushing resistance is improved with the sealing pair surface spraying hard alloy of the formation of valve seat 2, but because spray layer thickness is limited, is caused
After a period of time, coating shedding or part are washed out and cause seal failure.
Utility model content
For defect of the prior art, the utility model aims to solve the problem that the liquid medium of high content of solid particle to valve pocket
And valve inner part washes away there is provided a kind of resistance to erosion and can realize the online solution for changing internals.
The utility model provides eccentric rotary valve, and by valve seat and core assembly, and between them, use is supported for it
The sealing surface structure of antiscour, so that the eccentric rotary valve resistance to erosion and can realize and online change inner part.So as to solve
It is above-mentioned in the prior art, sealing pair face coat come off or part washed out the problem of causing seal failure.
From the point of view of the result of fluid analysis, occur washing away stream at a high speed at valve element and the restriction of valve seat formation, to valve element
Cause seriously to wash away with valve seat, it is therefore necessary to wash away to resist using hard alloy piece here.
Embodiments, provides a kind of eccentric rotary valve, including valve body, core assembly, valve rod, valve for the utility model one
Medium inlet and media outlet are provided with seat trim ring, filler seat, the valve body, it is characterised in that also including valve seat and valve element
Component, the sealing surface structure washed away between the valve seat and the core assembly using resistance.
In some embodiments, the core assembly includes valve element matrix, valve core sealed cover and valve element pressing plate, the valve
Core sealing surface is flexibly connected integrally by the bolt between valve element pressing plate and valve element matrix with valve element matrix.
In some embodiments, in addition to anti-blow screw；The valve body be valve body, bonnet integral structure, it is described
Anti-blow screw hole is set on valve body, filler seat is screwed in by the anti-blow screw, the filler seat is pressed in the valve rod
Above shoulder, the anti-blow of valve rod is realized.
In some embodiments, the valve core sealed cover and the valve seat are whole hard alloy part such as tungsten carbide
Structure.
In some embodiments, connected between the valve rod and core assembly for involute spline.
In some embodiments, the valve seat trim ring is flaring streamlined structure.
In some embodiments, the valve seat trim ring inner surface coated with hard alloy.
Compared with prior art, the utility model has advantages below：
1. valve element of the present utility model uses fabricated structure, it can be changed online when valve core sealed cover is by erosion failure.
2. valve core sealed cover of the present utility model and valve seat use whole tungsten carbide structure, flushing resistance is strong, it is to avoid
Sprayed coating poor bonding strength is too thin the problem of be easily washed damage.
3. the anti-blow structure of valve rod of the present utility model, it is possible to prevente effectively from causing valve rod to be blown due to being boosted in valve pocket
Situation.
4. the utility model can be reasonably resistant to wash away trim when the solid two-phase medium of corrosive liquid flows through valve
Corrosion, so as to extend the service life of whole valve.
5. being connected between valve rod of the present utility model and core assembly for involute spline, bearing capacity is strong, is easy to assembling.
6. valve seat trim ring of the present utility model is flaring streamlined structure and inner surface coated with hard alloy, it can reduce out
Mouth velocity of medium, is beneficial to mitigation medium and valve rear flange and runner is washed away.
The utility model has liquid solid or gas-particle two-phase medium harshness suitable for the industries such as power plant, petrochemical industry, papermaking
Bad working environments and other High Pressure Difference fluids control occasion.Equipment downtime can be reduced, reduction is safeguarded and maintenance cost, is increased
Plus enterprises' production capacity.
Brief description of the drawings
Fig. 1 is the structural representation for the eccentric rotary valve that the utility model is related to；
Fig. 2 is the core assembly figure that the utility model is related to.
Fig. 3 is the anti-blow structure chart of valve rod that the utility model is related to.
Wherein：
1- valve bodies, 2- valve seats, 3- core assemblies, 4- valve rods, 5- valve seats trim ring, 6- fillers seat, the anti-blow screws of 7-, 100-
Medium inlet, 200- media outlets, 31- valve elements matrix, 32- valve core sealed covers, 33- valve elements pressing plate, 34- bolts.
Embodiment
Below in conjunction with the accompanying drawings, utility model is described in further detail shown in Fig. 1~Fig. 3.
Fig. 1 shows the eccentric rotary valve in a kind of embodiment of the utility model, the eccentric rotary valve include valve body 1,
Medium inlet 100 and media outlet are provided with valve seat 2, core assembly 3, valve rod 4, valve seat trim ring 5, filler seat 6, the valve body
200, the eccentric rotary valve is that bulk flow closes formula valve, and medium is flowed into from left side, right side outflow.The valve seat 2 and the valve
The sealing surface structure washed away between core assembly 3 using resistance.
As shown in figure 1, in one embodiment, being connected between valve rod 4 and core assembly 3 for involute spline, valve seat
Trim ring 5 is flaring streamlined structure and inner surface coated with hard alloy.
As shown in Fig. 2 the core assembly 3 in a kind of embodiment of the utility model includes valve element matrix 31, seal spool
Face 32 and valve element pressing plate 33, the valve core sealed cover 32 pass through the bolt 34 and valve element between valve element pressing plate 33 and valve element matrix 31
Matrix 31 links into an integrated entity.
In one embodiment, the valve core sealed cover 32 and the valve seat 2 are whole tungsten carbide structure.
As shown in figure 3, the anti-blow structure of the valve rod used in a kind of embodiment of the utility model, in addition to prevent blowing
Go out screw 7；The valve body 1 is to set anti-blow screw hole, anti-blow spiral shell on valve body, bonnet integral structure, the valve body (1)
Nail 7 screws in the seat of filler shown in Fig. 16 by the anti-blow screw hole being arranged on valve body, and filler seat 6 is pressed in set by valve rod 4
On shoulder, so as to prevent that boosting causes valve rod to be blown in valve pocket.
The course of work of the utility model eccentric rotary valve is：As shown in figure 1, outside the involute spline of valve rod upper end
Pneumatic actuator or hand wheel drive are connect, in the presence of driving moment, valve rod 4 can be rotated by 90 ° around axle center, valve rod 4
Again by involute spline power transmission, therefore while valve rod rotation, band movable valve plug 3 is moved with valve element 3 for lower end, makes valve opening
Some angle, medium is come in from entrance 100, flows through the restriction formed between valve element 3 and valve seat 2, is reserved from outlet 200.This
The eccentric rotary valve that utility model is provided, it is by valve seat 2 and core assembly 3, the sealing washed away between them using resistance
Face structure, so that the eccentric rotary valve resistance to erosion and can realize and online change inner part.
The beneficial effects of the utility model are the sealing surface structures using whole hard alloy tungsten carbide, can be effective against
Highly filled liquid-solid two-phase or gas-particle two-phase medium washes away, and can resist Heisui River, pulp water and ash in coal chemical industry system
The severe corrosive of aqueous medium.
Above-described is only some embodiments of the present utility model.For the person of ordinary skill of the art,
On the premise of the utility model creation design is not departed from, various modifications and improvements can be made, these belong to this practicality
New protection domain.
Claims (7)
1. a kind of eccentric rotary valve, including valve body (1), core assembly (3), valve rod (4), valve seat trim ring (5), filler seat (6), institute
State and medium inlet (100) and media outlet (200) are provided with valve body, it is characterised in that also including valve seat (2) and core assembly
(3) antiscour sealing surface structure, is used between the valve seat (2) and the core assembly (3).
2. eccentric rotary valve according to claim 1, it is characterised in that the core assembly (3) includes valve element matrix
(31), valve core sealed cover (32) and valve element pressing plate (33), the valve core sealed cover (32) pass through valve element pressing plate (33) and valve element base
Bolt (34) between body (31) is flexibly connected integrally with valve element matrix (31).
3. eccentric rotary valve according to claim 2, it is characterised in that also including anti-blow screw (7)；The valve body
(1) it is valve body, bonnet integral structure, anti-blow screw hole is set on the valve body (1), passes through the anti-blow screw (7)
Filler seat (6) is screwed in, the filler seat (6) is pressed in above the shoulder of the valve rod (4), realizes the anti-blow of valve rod (4).
4. eccentric rotary valve according to claim 2, it is characterised in that the valve core sealed cover (32) and the valve seat
(2) it is whole hard alloy part carbonization tungsten structure.
5. eccentric rotary valve according to claim 1, it is characterised in that be between the valve rod (4) and core assembly (3)
Involute spline is connected.
6. eccentric rotary valve according to claim 1, it is characterised in that the valve seat trim ring (5) is the streamlined knot of flaring
Structure.
7. the eccentric rotary valve according to claim 1 or 6, it is characterised in that valve seat trim ring (5) the inner surface spraying is hard
Matter alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271270.5U CN206600487U (en) | 2017-03-20 | 2017-03-20 | Eccentric rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271270.5U CN206600487U (en) | 2017-03-20 | 2017-03-20 | Eccentric rotary valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206600487U true CN206600487U (en) | 2017-10-31 |
Family
ID=60145403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720271270.5U Active CN206600487U (en) | 2017-03-20 | 2017-03-20 | Eccentric rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206600487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917878A (en) * | 2017-03-20 | 2017-07-04 | 航天长征化学工程股份有限公司 | Eccentric rotary valve |
-
2017
- 2017-03-20 CN CN201720271270.5U patent/CN206600487U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917878A (en) * | 2017-03-20 | 2017-07-04 | 航天长征化学工程股份有限公司 | Eccentric rotary valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106917878A (en) | Eccentric rotary valve | |
| CN105508720A (en) | Corrugated pipe stop valve for photo-thermal electricity generation fused salt | |
| CN206816887U (en) | A kind of HTHP difference tandem balanced type regulating valve | |
| CN206600487U (en) | Eccentric rotary valve | |
| CN212131375U (en) | Wear-resistant and corrosion-resistant ball valve | |
| CN201007375Y (en) | Slant cone surface multi-way value | |
| CN209444839U (en) | A kind of wear-resisting accurate adjustment ball valve of square hole runner | |
| CN204187034U (en) | A kind of wear resistance ball valve | |
| CN202691085U (en) | Electric metal sealing butterfly valve | |
| CN207701774U (en) | A kind of erosion prevention cut-off valve | |
| CN201335170Y (en) | Top-loading bidirectional hard-seal eccentric spheric valve | |
| CN204387354U (en) | Bidirectional flow is wear-resisting revolves Ball type butlerfly valve | |
| CN204985801U (en) | Eccentric V -arrangement ball valve | |
| CN206338448U (en) | Ammonia check valve special | |
| CN205908789U (en) | Ceramic hemisphere valve of two off -centre | |
| CN215371062U (en) | Hard seal floating ball valve for boiling bed residual oil hydrogenation device | |
| CN201071938Y (en) | Dual-purpose valve | |
| CN203926823U (en) | A kind of multi-angle combination resistance to erosion slurry valve | |
| CN103615561A (en) | High-differential-pressure on-line spool replacing type black-water eccentric rotary valve | |
| CN208252810U (en) | A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle | |
| CN209041580U (en) | A kind of Fluorine-lined flange form plunger valve gear | |
| CN103375595A (en) | Zero-friction bidirectional metal seal butterfly valve | |
| CN202756640U (en) | Zero-friction bidirectional metal sealed butterfly valve | |
| CN219452947U (en) | Special adjusting ball valve for dust-containing gas water and special V-shaped ball | |
| CN216742852U (en) | Scouring-resistant slurry valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |