CN206320326U - It is double to block wear-resistant sluice valve - Google Patents
It is double to block wear-resistant sluice valve Download PDFInfo
- Publication number
- CN206320326U CN206320326U CN201621355678.2U CN201621355678U CN206320326U CN 206320326 U CN206320326 U CN 206320326U CN 201621355678 U CN201621355678 U CN 201621355678U CN 206320326 U CN206320326 U CN 206320326U
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- oil cylinder
- bonnet
- afterwards
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 125000006850 spacer group Chemical group 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 45
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 230000005514 two-phase flow Effects 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Landscapes
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Abstract
Wear-resistant sluice valve is blocked the utility model discloses a kind of pair, the bonnet of this gate valve is located at valve body top surface, valve body carrying before sealing surface provided with insertion, valve pocket afterwards, branch is set up in bonnet top surface, before, driving oil cylinder is located at cradle top surface afterwards, before, valve rod is penetrated before bonnet and top connection afterwards, the piston rod of oil cylinder is driven afterwards, flashboard before preceding valve rod bottom connection, preceding flashboard is located at preceding valve pocket and seals against face, connecting plate two ends are respectively articulated with rear valve rod bottom and rear flashboard, flashboard is located at rear valve pocket afterwards and one side seals against face, the another side of flashboard is provided with surface groove afterwards, spacer pin located at valve body side wall and against the surface groove of rear flashboard.This gate valve can effectively improve the anti-wear performance among liquid-solid two-phase flow medium, eliminate cavitation erosion, improve the turn-off capacity of valve, it is ensured that the permanently effective operation in pipeline, and significantly increase the service life.
Description
Technical field
The utility model is related to a kind of pair and blocks wear-resistant sluice valve.
Background technology
There are many liquid fixed double phase flow medium pipelines, such as blast furnace slag flushing pipeline, coal slurry pipeline, plumbing drain in industrial circle
Etc..Medium is due to there is the presence of solid particle in these pipelines, otherwise cause pipe valve to fit badly, or because washing away acutely
And lose sealing.Therefore the valve seal pair on such pipeline is usually the higher alloy material of selection hardness, nonetheless,
Washing away at a high speed in particle and grinding lower sealing surface will fail quickly, and valve is strong in the cavitation erosion for opening and closing the generation of moment fluid in addition
Strong, life of valve is very short.Therefore the anti-wear performance and service life for improving such pipe valve are a problems urgently to be resolved hurrily.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of pair and blocks wear-resistant sluice valve, and this gate valve can be effectively improved
Anti-wear performance among Fluid-particle two-phase flows medium, eliminates cavitation erosion, improves the turn-off capacity of valve, it is ensured that the length in pipeline
Phase is effectively run, and significantly increases the service life.
In order to solve the above technical problems, the double wear-resistant sluice valves that block of the utility model include valve body and bonnet, the bonnet is set
In the valve body top surface, this gate valve also include preceding flashboard, rear flashboard, preceding valve rod, rear valve rod, preceding driving oil cylinder, afterwards driving oil cylinder,
Connecting plate, spacer pin and support, the valve body are provided with the preceding valve pocket and rear valve pocket of insertion, the rear end face and rear valve of the preceding valve pocket
The front end face of chamber is sealing surface, and the branch is set up in the bonnet top surface, and the preceding driving oil cylinder and rear driving oil cylinder are set respectively
In the cradle top surface, the preceding valve rod penetrates piston rod, the bottom of the bonnet and the top connection preceding driving oil cylinder
Connect the preceding flashboard, the preceding flashboard is located at the preceding valve pocket and against the sealing surface of the preceding valve pocket, the rear valve rod
The piston rod of the bonnet and the top connection rear driving oil cylinder is penetrated, the connecting plate two ends are respectively articulated with the rear valve
Bar bottom and rear flashboard, the rear flashboard be located at the rear valve pocket and one side against the rear valve pocket sealing surface, it is described after
The another side of flashboard is provided with surface groove, the spacer pin located at the valve body side wall and against the inclined-plane of the rear flashboard
Groove.
Further, the both sides of the rear flashboard another side have surface groove, and the spacer pin is respectively arranged on the valve
The two side of body and against the surface groove of the rear flashboard another side both sides.
Further, this gate valve also includes hydraulic station and oil pipe, it is described before driving oil cylinder and rear driving oil cylinder oil inlet and
Oil return opening connects the hydraulic oil output end and oil revolving end of the hydraulic station by the oil pipe respectively.
Wear-resistant sluice valve is blocked because the utility model is double and employs the bonnet of above-mentioned technical proposal, i.e. this gate valve located at valve body
Top surface, valve body is provided with the forward and backward valve pocket with sealing surface of insertion, and branch is set up in bonnet top surface, and forward and backward driving oil cylinder is located at branch
Top of support, forward and backward valve rod penetrates the piston rod of bonnet and the forward and backward driving oil cylinder of top connection, and preceding valve rod bottom connects front brake
Plate, preceding flashboard is located at preceding valve pocket and seals against face, and connecting plate two ends are respectively articulated with rear valve rod bottom and rear flashboard, rear flashboard
Face is sealed against positioned at rear valve pocket and simultaneously, the another side of rear flashboard is provided with surface groove, and spacer pin is located at the side wall of valve body simultaneously
And against the surface groove of rear flashboard.This gate valve effectively improves the anti-wear performance among Fluid-particle two-phase flows medium, eliminates cavitation erosion,
Improve the turn-off capacity of valve, it is ensured that the permanently effective operation in pipeline, and increase the service life.
Brief description of the drawings
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：
Fig. 1, which is that the utility model is double, blocks wear-resistant sluice valve structural representation；
Fig. 2 is A-A in Fig. 1 to zoomed-in view；
Fig. 3 is rear flashboard closing schematic diagram in this gate valve；
Fig. 4 is rear flashboard opening schematic diagram in this gate valve.
Embodiment
As depicted in figs. 1 and 2, the double wear-resistant sluice valves that block of the utility model include valve body 1 and bonnet 2, the valve to embodiment
Lid 2 be located at the top surface of valve body 1, this gate valve also include preceding flashboard 3, rear flashboard 4, preceding valve rod 5, rear valve rod 6, it is preceding driving oil cylinder 7,
Oil cylinder 8, connecting plate 9, spacer pin 10 and support 21 are driven afterwards, and the valve body 1 is provided with the preceding valve pocket 11 and rear valve pocket 12 of insertion, institute
The front end face of the rear end face and rear valve pocket 12 of stating preceding valve pocket 11 is sealing surface, and the support 21 is located at the top surface of bonnet 2, described
Preceding driving oil cylinder 7 and rear driving oil cylinder 8 are respectively arranged on the top surface of support 21, and the preceding valve rod 5 penetrates the bonnet 2 and pushed up
The piston rod of driving oil cylinder 7, bottom connect the preceding flashboard 3 before end connection is described, and the preceding flashboard 3 is located at the preceding valve pocket 11
And against the sealing surface of the preceding valve pocket 11, the rear valve rod 6 penetrates the bonnet 2 and the top connection rear driving oil
The piston rod of cylinder 8, the two ends of connecting plate 9 are respectively articulated with the bottom of rear valve rod 6 and rear flashboard 4, and the rear flashboard 4 is located at institute
State rear valve pocket 12 and simultaneously against the sealing surface of the rear valve pocket 12, the another side of the rear flashboard 4 is provided with surface groove 41, institute
Spacer pin 10 is stated located at the side wall of the valve body 1 and against the surface groove 41 of the rear flashboard 4.
It is preferred that, the both sides of the rear another side of flashboard 4 have surface groove 41, and the spacer pin 10 is respectively arranged on institute
State the two side of valve body 1 and against the surface groove 41 of the rear another side both sides of flashboard 4.The inclined-plane of flashboard another side both sides afterwards
Thrust when flashboard is closed after groove balance, it is ensured that rear flashboard is in sealing contact with rear valve pocket sealing surface, to ensure reliable closing.
It is preferred that, this gate valve also includes hydraulic station 71 and oil pipe 72, and the preceding driving oil cylinder 7 enters with rear driving oil cylinder 8
Hydraulic fluid port and oil return opening connect the hydraulic oil output end and oil revolving end of the hydraulic station 71 by the oil pipe 72 respectively.This gate valve leads to
Cross before hydraulic pressure stand control and drive the sequence of movement of oil cylinder and rear driving oil cylinder, and then control the preceding flashboard of this gate valve and rear flashboard respectively
Opening and closing in order, to ensure the performance of this gate valve.
Acted when this gate valve works by the preceding driving oil cylinder of hydraulic pressure stand control and the rear driving preceding flashboard of hydraulic oil cylinder driving and rear flashboard.
Flashboard drops to the sealing surface of preceding valve pocket before being driven first by preceding driving oil cylinder by preceding valve rod when closing valve, and now preceding flashboard is in valve
Sealing surface is adjacent in the presence of body inlet side pressure medium to form self sealing structure；After preceding flashboard is sealed to position, by rear
Oil cylinder is driven to decline by flashboard after the drive of rear valve rod, because rear flashboard is hinged with rear valve rod by connecting plate, it declines process
Surface groove make it that rear flashboard slowly approaches the sealing surface of rear valve pocket by the thrust of spacer pin, and rear flashboard closes and drives oil cylinder afterwards in place
Continue to press, due to the effect of the surface groove and spacer pin of back brake back, make rear flashboard be forced to push the sealing of rear valve pocket to
Face, so as to form forced seal structure.Order during valve opening with closing valve on the contrary, rear flashboard is first opened, in place after, preceding flashboard is opened again
Open, during which, due to the thrust by medium when rear flashboard is opened so that the sealing surface of valve pocket after rear flashboard disengaging.The keying side
The purpose of formula be protect after flashboard and rear valve pocket sealing surface in opening-closing process not by dielectric damages.
As shown in Figure 3 and Figure 4, rear flashboard 4 is with rear valve rod 6 by the chain connection of connecting plate 9, and the structure is for rear flashboard
4 have an offset in opening-closing process, rear flashboard 4 is kept certain with the sealing surface of rear valve pocket 12 all the time in up and down motion
Distance, therefore do not rubbed between them, the service life of sealing surface is longer.And when rear flashboard 4 is closed in place, pass through surface groove
41 make it that rear flashboard 4 is traversing again and contacts to form forced seal with the sealing surface of rear valve pocket 12 with the cooperation of spacer pin 10.
Containing a large amount of impurity, it is particularly in the medium containing high hardness particle, the unlatching starting stage of valve and closing latter end,
At the time of to be medium wash away cavitation erosion most serious to valve sealing face, while being easiest to clamp between flap and valve body sealing surface
Grain, if pellet hardness is high, will damage sealing surface, cause seal failure.Even if hardness is not high, impurity be clipped in two sealing surfaces it
Between, it will also result in valve and be not closed completely, such two-phase flow medium will be with hypervelocity by this gap, will soon be by sealing surface
Wash away groove, can equally make seal failure.And this pair is blocked wear-resistant sluice valve and successively opened using former and later two flashboards in a creative way
The on-off mode closed, after preceding flashboard is closed, without in the presence of medium in rear valve pocket, rear flashboard is just begun to shut off, thus
Avoid rear flashboard and close the destruction of latter end medium and impurity to valve sealing face.During valve opening, rear flashboard is reached behind position, front brake
Plate is then turned on, and is also to flashboard after protection.Even if occurring abrasion seepage after preceding flashboard longtime running, still it can play pair
The protective effect of flashboard afterwards, makes rear flashboard keep sealing, so that whole valve keeps sealing state.Due to first closing preceding flashboard,
There is no high-speed Medium to wash away when flashboard is closed afterwards, therefore do not cavitate, the life-span of valve body and flashboard is longer.
This gate valve is different from common gate valve, and the sealing surface of flashboard is with rear valve pocket sealing surface during up and down motion thereafter
It is discontiguous, therefore the just friction without sealing surface, it is that the sealing surface for being pulled to rear valve pocket gets on afterwards in place that rear flashboard, which is closed,
Therefore service life is longer.
This pair is blocked wear-resistant sluice valve by new principle and structure, eliminates the defect of conventional valves, it is adaptable to solid-liquid two
Phase flow medium pipeline, especially becomes apparent from dregginess is very high, pellet hardness is high, wash away advantage in serious pipeline, can be long-term
Effectively operation, and obtain significant economic benefit.
This gate valve forms double amputated structures using front and rear brake plate, and reliability and service life, which have, to be increased exponentially, and
Even and if preceding flashboard pressure medium is low or abrasion after produce seepage, because it has blocked most rate-of flows, thus according to
Rear flashboard can so be shielded in opening-closing process.This gate valve significantly improve wear-resisting on pipeline containing granule medium and
Abrasion resistance, extends the cycle of maintenance of valve replacing, and service life is multiplied, and considerably reduces system operation cost,
It ensure that the transmitting of pipeline medium.
Claims (3)
1. a kind of pair is blocked wear-resistant sluice valve, including valve body and bonnet, the bonnet is located at the valve body top surface, it is characterised in that：
Also include preceding flashboard, rear flashboard, preceding valve rod, rear valve rod, afterwards preceding driving oil cylinder, driving oil cylinder, connecting plate, spacer pin and support,
The valve body is provided with the preceding valve pocket and rear valve pocket of insertion, and the rear end face of the preceding valve pocket and the front end face of rear valve pocket are sealing surface,
The branch is set up in the bonnet top surface, and the preceding driving oil cylinder and rear driving oil cylinder are respectively arranged on the cradle top surface, described
Preceding valve rod penetrates piston rod, the bottom connection preceding flashboard of the bonnet and the top connection preceding driving oil cylinder, described
Preceding flashboard is located at the preceding valve pocket and against the sealing surface of the preceding valve pocket, and the rear valve rod penetrates the bonnet and top
The piston rod of driving oil cylinder after connection is described, the connecting plate two ends are respectively articulated with the rear valve rod bottom and rear flashboard, described
Flashboard is located at the rear valve pocket afterwards and simultaneously against the sealing surface of the rear valve pocket, the another side of the rear flashboard is provided with inclined-plane
Groove, the spacer pin located at the valve body side wall and against the surface groove of the rear flashboard.
2. according to claim 1 pair is blocked wear-resistant sluice valve, it is characterised in that：The both sides difference of the rear flashboard another side
It is provided with surface groove, the spacer pin is respectively arranged on the two side of the valve body and against the oblique of the rear flashboard another side both sides
Face groove.
3. according to claim 1 or 2 pair is blocked wear-resistant sluice valve, it is characterised in that：This gate valve also includes hydraulic station and oil
The oil inlet and oil return opening of pipe, the preceding driving oil cylinder and rear driving oil cylinder connect the hydraulic station respectively by the oil pipe
Hydraulic oil output end and oil revolving end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355678.2U CN206320326U (en) | 2016-12-12 | 2016-12-12 | It is double to block wear-resistant sluice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355678.2U CN206320326U (en) | 2016-12-12 | 2016-12-12 | It is double to block wear-resistant sluice valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320326U true CN206320326U (en) | 2017-07-11 |
Family
ID=59266898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621355678.2U Expired - Fee Related CN206320326U (en) | 2016-12-12 | 2016-12-12 | It is double to block wear-resistant sluice valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206320326U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612860A (en) * | 2016-12-12 | 2018-10-02 | 凯泰阀门(集团)有限公司 | It is double to block wear-resistant sluice valve |
| CN112762183A (en) * | 2021-01-14 | 2021-05-07 | 纽康阀门(上海)有限公司 | Self-flushing super-wear-resistant slurry knife gate valve |
| TWI796655B (en) * | 2020-03-19 | 2023-03-21 | 慎敬順 | Fluid shutoff valve |
-
2016
- 2016-12-12 CN CN201621355678.2U patent/CN206320326U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612860A (en) * | 2016-12-12 | 2018-10-02 | 凯泰阀门(集团)有限公司 | It is double to block wear-resistant sluice valve |
| TWI796655B (en) * | 2020-03-19 | 2023-03-21 | 慎敬順 | Fluid shutoff valve |
| CN112762183A (en) * | 2021-01-14 | 2021-05-07 | 纽康阀门(上海)有限公司 | Self-flushing super-wear-resistant slurry knife gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |