CN103899778A - Valve body, bushing, support, partition plate and gate valve - Google Patents
Valve body, bushing, support, partition plate and gate valve Download PDFInfo
- Publication number
- CN103899778A CN103899778A CN201410129427.1A CN201410129427A CN103899778A CN 103899778 A CN103899778 A CN 103899778A CN 201410129427 A CN201410129427 A CN 201410129427A CN 103899778 A CN103899778 A CN 103899778A
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- Prior art keywords
- valve body
- lining
- rubber
- skeleton
- face
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- 238000005192 partition Methods 0.000 title abstract 4
- 229920001971 elastomer Polymers 0.000 claims abstract description 191
- 239000005060 rubber Substances 0.000 claims abstract description 191
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000005272 metallurgy Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 11
- 230000008093 supporting effect Effects 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 9
- 241000233855 Orchidaceae Species 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a valve body, a bushing, a support, a partition plate and a gate valve. Components of an existing gate valve and combinations of the components are innovated and modified, so that the components and the gate valve have novel features, and the gate valve is applicable to realizing closing or opening control effect for liquid in the fields of metallurgy, mines, electric power and the like and mainly comprises the components including the valve body, the bushing, through bolts, a gate segment, a pin, a connector, a driving device, the support and the partition plate. The gate valve is characterized in that the structures of the valve body and the bushing and an assembly relation between the valve body and the bushing are changed, the bushing is internally arranged instead of being externally arranged, and a framework in the bushing is constrained in a hole of the valve body. The valve body, the bushing, the support, the partition plate and the gate valve have the advantages that the problem of leakage in opening and closing movement procedures of the existing gate valve can be solved; functions of a rubber flange of the existing gate valve are replaced by functions of rear-section rubber, so that the mounting length of the valve is certain, and the valve is stable in performance; a boss is arranged at the front of the framework of the bushing, and thin-layer rubber is arranged on the top of the boss, so that the valve can be lightened, and the service life of the valve can be prolonged.
Description
Technical field
Valve body of the present invention, lining, support, dividing plate and gate valve are that main parts size and the combination thereof to existing gate valve innovated and improve, therefore valve body, lining, support, dividing plate and gate valve that these have new feature have been invented, this is the multinomial invention around this total invention conception of gate valve, this gate valve is applicable to the field convection cells such as metallurgy, mine, electric power, particularly contains the slag such as ore, silt particle slurry fluid and closes or conducting control action.
Background technique:
Existing gate valve as shown in Figure 1, mainly by valve body 1, lining 2, to wearing bolt 3, flashboard 4, pin 5, joint 6, cylinder 7, portal frame 8 component such as grade compositions.Fig. 2 is valve body 1 and lining 2 assembly relation enlarged views in Fig. 1.Fig. 3 be existing gate valve while being arranged on pipeline liner size change and force analysis figure, in figure: pipeline flange 9, connecting bolt 10.
Assembling: two valve bodies 1 are arranged on respectively the both sides of portal frame 8, use, to wearing bolt 3, they are tightened to one, and the distance between valve body interior edge face 101 equals the thickness m of guide plate
1; A cylinder 7 is housed on portal frame top polygonal flange 803; Flashboard is placed in the space between guide plate 801 and the valve body interior edge face 101 of portal frame, makes size m
1be slightly larger than m
2, n
1be slightly larger than n
2, flashboard surrounding is gapped, and flashboard can freely slide up and down; Cylinder column relies on joint 6 and pin 5 to couple together with flashboard 4, and cylinder column can drive flashboard to move up and down; Lining 2 is directly installed on from outside in the hole of valve body 1, becomes Spielpassung with valve body hole, and the skeleton 201 on lining axially without constraint, can be free to slide in valve body hole; Because lining 2 can stretch into the free length h in valve body hole
1be greater than the half h of valve steel part total length
2, therefore gapped h between rubber flange interior edge face 205 and valve body exterior edge face 102
3(seeing Fig. 2), h
3=h
1-h
2.In the time that this valve installation is on pipeline (Fig. 3), the pipeline flange 9 on dependence both sides is oppressed lining ear end face 206 and lining 2 further could be pressed in valve body hole, bushing rubber flange interior edge face 205 is fitted tightly on valve body exterior edge face 102, now the axial dimension of lining has had certain pre compressed magnitude, establishes s
1for pre compressed magnitude, s
1=(e
1+ h
1)-(e
2+ h
2)=(e
1-e
2)+(h
1-h
2)=(e
1-e
2)+h
3; Pre compressed magnitude s
1be greater than h
3, because the connecting bolt 10 between pipeline flange 9 and valve body 1 can further compressing rubber flange 208 while tightening, make the thickness of rubber flange by e
1be decreased to e
2, difference (e
1-e
2) be exactly the amount that rubber flange is extruded rear attenuate, connecting bolt 10 screwing forces are larger, and it is thinner that rubber flange 208 is extruded, the pre compressed magnitude s of lining
1just larger; Had two lining front-end faces 204 of pre compressed magnitude can close contacts, had mutually certain extruding force, this extruding force be the key that ensures that fluid can be from the interface between two linings to external leakage; Lining front-end face 204 docking completely mutually, when close contact, the state of valve is conducting, allows fluid to pass through.When 4 lock lower times of flashboard, first flashboard front end tip pushes the interface between lining, continue downwards, flashboard can insert between two linings, bushing coining is separated, after flashboard inserts completely, two linings have just been separated completely by flashboard, now the endoporus of lining has been sealed by flashboard, and valve is in closed condition, and fluid can not pass through valve.In the time that flashboard upwards enhances, the rubber of lining can automatically extend under the effect of cohesive energy elastic force, docking mutually, and valve again can be on state.Seal action between 208 valves of rubber flange and external equipment or pipeline flange.
Basic structure and the working principle of existing gate valve in sum, facts have proved that it is good that this valve is worked in the time opening completely or close two kinds of ultimate states completely, reliably, this valve is because of simple in structure, lining is more wear-resisting, maintenance is than being easier to, the factors such as user cost is lower are widely used and promote, but also there are some shortcoming and defect in this valve: 1. when flashboard moves downward in the process of throttle down, first flashboard front end tip inserts in two lining interfaces, and flashboard can be decomposed into axial compression power P to the extruding force P of bushing rubber
1with lateral extrusion power P
2(Fig. 3), axial compression power P
1through leading portion rubber 202, intermediate section rubber 203 and back segment rubber 207, power is passed to exterior line flange 9, axial force P
1make bushing rubber produce axial crushing deformation outwards mobile, 207 compressive strains of back segment rubber and outwards movement can make skeleton 201 also outwards move, and skeleton moves outward and can also outwards move by related leading portion rubber 202, when the displacement distance of skeleton is greater than the pre compressed magnitude s of lining
1time, two lining front-end faces 204 will separate, and occur gap, and as the f in Fig. 3, at this moment flashboard bottom, does not also close the part gap putting in place external leakage will occur, upwards lifting process is too for flashboard, in the time that flashboard does not also enhance completely, the skeleton of lining just can not return back to original position, the rubber of flashboard bottom can not all merge in time, also can leak, therefore the topmost shortcoming of existing gate valve is that flashboard valve in the process of closing or opening can leak (this has been confirmed by practice), reduce leakage rate, can only quick closedown or open fast valve, otherwise the process time of closing or opening is longer, leakage rate is larger, this is nuisance very, fluid leakage has not only been wasted fluid foods, also befouling environment, affect equipment environmental hygiene around, increase trouble to staff.2. these gate valve lining 2 ecto-entads, moving cooperation is contained in the hole of valve body 1, and the skeleton 201 on lining is axially without constraint in valve body hole, and valve lining in transport, handling process is easy to drop out in valve body hole.3. existing gate valve length dimension has dividing of hard size and soft size, as length L in Fig. 2 Fig. 3
1be exactly hard size, the size that this is made up of steel part, so be called hard size, before valve installation and after using, this size does not change; L
2and L
3be soft size, they are the distance sizes between lining ear end face 206, because rubber is resilient, are called soft size; L
2be valve free distance size between two lining ear end faces while not having connecting pipeline flange, in the time that this valve installation is on pipeline, the pipeline flange 9 on both sides compresses lining ear end face 206, makes L
2size shortens and becomes L
3, L
3neither a fixed number, it is relevant with the screwing force size of connecting bolt 10, and screwing force is larger, size L
3less, L
3=L
1+ e
2+ e
3, the thickness after both sides rubber flange is compressed is designated as respectively e
2and e
3, because the thickness size e of rubber flange 208
1can not be compressed to 0, i.e. e
2and e
3always be greater than 0, so soft size L after this valve installation
3all the time be greater than hard size L
1, i.e. L
3>L
1.When different workman's mounted valve, connecting bolt 10 screwing force differences, length dimension L after valve installation
3also just different, this can affect the performance of valve, and in the time that connecting bolt 10 screwing forces are not enough, pipeline flange face is easily leaked, when connecting bolt 10 screwing forces are when excessive, and the pre compressed magnitude s of lining
1larger, the extruding force between lining front-end face 204 is also larger, and this can increase the resistance to motion of flashboard, increases power and energy consumption, is also disadvantageous, the just right very difficult assurance of screwing force of connecting bolt 10.4. in the time that the screwing force of the connecting bolt 10 on valve both sides is different, the pre compressed magnitude of both sides lining is unequal, and the interface between lining can move to the little lateral deviation of screwing force, can not aim at the center line of flashboard, easily causes flashboard to close difficulty.5. during this valve uses, in the time that the hydrodynamic pressure of flashboard both sides varies in size, flashboard can move to the less lateral deviation of pressure, and be pressed on this side valve body interior edge face, if now flashboard moves up and down, the surface of flashboard will inevitably with the interior edge face generation sliding friction of valve body, like this between steel part and steel part the direct friction of (firmly to hard) easily causes flashboard surface to produce to scratch, the scuffing on flashboard surface easily causes again lining front-end face to have scuffing, and this easily causes seal failure.
Sum up existing gate valve and mainly have following shortcoming or deficiency: 1. valve has external leakage in the process of closing or opening.2. moving cooperation of lining ecto-entad is contained in valve body hole, and the skeleton on lining axially without constraint, easily drops out in valve body hole.3. after valve installation uses, length dimension, soft size is always greater than hard size, and valve installation length dimension is difficult to be held, uncertain, the unstable properties of valve.4. in the time of Rig up error, easily cause flashboard to close difficulty.5. the interface of flashboard surface and lining is easily scratched, and sealing was easily lost efficacy.
As seen from Figure 2, as valve length dimension L
1and flashboard thickness size m
2one timing, size m
1also certain (m
1be slightly larger than m
2), because L
1=m
1+ 2a; So valve body thickness
this formula is labeled as to formula <1>.
Summary of the invention:
The present invention designs in order to overcome the shortcoming and defect of existing gate valve, and feature is: 1. it has changed structure and the assembly relation of valve body and lining, make lining by exterior change into in-built; Skeleton on lining is tied in valve body hole; 2. gate valve of the present invention not only in the time that flashboard cuts out completely or opens two kinds of ultimate states completely sealing be good, and can there is not external leakage in flashboard in the process of cutting out or opening yet; 3. before lining skeleton of the present invention, designed a boss, boss total height is c
1, therefore, compared with the existing gate valve of same size, valve body thickness of the present invention can reduce c
1, thereby can save material and alleviate the weight of valve; 4. gate valve of the present invention uses back segment rubber and external equipment or pipeline flange to seal, and has replaced the function of existing gate valve rubber flange, has started the new mode sealing between valve and external equipment or pipeline flange; 5. valve installation use after length dimension, soft size becomes and equals hard size, valve installation length dimension is unique, determine, the stable performance of valve, not being subject to install affects; 6. lining boss end face is lined with thin layer rubber, and thin layer rubber can be protected flashboard, avoids flashboard to contact with skeleton, prevents that the surface of flashboard from being scratched by hardware, has also protected lining front-end face to avoid scratching, and makes the longer service life of flashboard and lining.7. support and dividing plate can replace the effect of portal frame completely, its more reasonable structure, and weight is lighter.
Gate valve of the present invention is achieved in that sees Fig. 8.It is mainly by valve body 1, lining 2, and to wearing bolt 3, flashboard 4, pin 5, joint 6, drive unit 7, support 8, dividing plate 9 compositions such as component such as grade.Fig. 9 is valve body 1 and lining 2 assembly relation enlarged views in Fig. 8.Figure 10 is that liner size changes and force analysis figure on gate valve of the present invention equipment mounted externally or pipeline time, in figure: pipeline flange 10; Connecting bolt 11.
The structure of valve body 1 of the present invention is shown in Figure 12, and it is made up of a block method orchid, and valve body interior edge face 101 has gear platform 105 on interior edge face, and gear platform height is c
5,, there is a shoulder hole valve body exterior edge face 106 in the middle of valve body, be called valve body inner bore 102 near the hole of interior edge face, and aperture is A
1, the degree of depth is a
1, hole base ring platform 104, is called the outer hole 103 of valve body near the hole of exterior edge face, and aperture is A
2, length is a
2; Valve body thickness is a.
The structure of lining 2 of the present invention is shown in Figure 16, formed by skeleton and rubber, and skeleton 201, external diameter is D
3, internal diameter is D
2, be highly c
2, skeleton front-end face 208, skeleton ear end face 209, has boss 202 before skeleton, is highly c
3, boss 202 also belongs to a part for skeleton, boss above to have thin layer rubber 203, thickness be c
4, boss total height is c
1, c
1=c
3+ c
4, boss end face 207, skeleton and rubber are combined into one, and rubber is risen and controlled and fixation; Rubber axis is to being divided into three sections of compositions: (1) leading portion rubber: the rubber on boss end face 207 right sides is called leading portion rubber 204, and its external diameter is D
1, internal diameter is D
0, be highly b
1, make D
1≤ D
2, this is conducive to leading portion rubber 204 and is subject to flashboard when extruding to slippage in skeleton hole; (2) intermediate section rubber: thin layer rubber and skeleton brute force in skeleton hole on rubber and boss end face are bonded together, and this section of rubber is called intermediate section rubber 205, and axial dimension is b
2, b
2=c
1+ c
2; (3) back segment rubber: one section of rubber in skeleton left side is called back segment rubber 210, and external diameter is D
4, internal diameter is D
5, axial dimension is b
3, lining front-end face 206, lining ear end face 211.
The first structure of support 8 of the present invention is shown in Figure 17, and it is mainly by otic placode 801, supporting leg 802, and square flange 803 is welded; The section steel material manufactures such as the easy-to-use angle bar of supporting leg, its upper end is overlapped on the edge of square flange, and lower end is welded on otic placode, and entirety becomes truss structure, apparent with portal frame contrast, truss structure bulk is larger, and rigidity is larger, more reasonable structure, square flange is better than polygonal flange structure, more save material, weight is lighter, and the manufacturing expense of support can be lower.
The second structure of support 8 of the present invention is shown in Figure 18, is also by otic placode 801, supporting leg 802, and square flange 803 is welded; Supporting leg upper end is welded on the four corners position below square flange, and lower end is welded on otic placode.
The structure of two kinds of supports of the present invention is slightly different, but function is the same, is all the member that connects valve body and drive unit.
The structure of dividing plate of the present invention is shown in Figure 11, is made up of a rectangular plate, and thickness is t.
Flashboard structure is identical with the flashboard structure of existing gate valve, sees Fig. 7, and its thickness is m
2, width is n
2, flashboard front end manufactures tip shape.
Assembling: moving cooperation packs in the shoulder hole of valve body 1 lining 2 from inside to outside, see Figure 13, lining skeleton 201 is contained in 102 li of valve body inner bore, skeleton ear end face 209 is pressed on the hole base ring platform 104 of valve body, skeleton front-end face 208 concordant with valve body interior edge face 101 (or a little less than valve body interior edge face), boss end face 207 exceeds valve body interior edge face 101, is highly c
1; Lining back segment rubber 210 is contained in 103 li, the outer hole of valve body, and lining ear end face 211, through valve body hole, exceeds the exterior edge face 106 of valve body, is highly s
2, s
2=b
3-a
2, s
2be the reserved decrement of back segment rubber, this is while being connected with external equipment or pipeline flange for this valve, ensures that connecting flange faces does not leak and designs; Lining 2 must be arranged in the shoulder hole of valve body 1 first from inside to outside, then they is arranged on together to the both sides of dividing plate 9, then they are put between the otic placode 801 of support together, uses, to wearing bolt 3, they is tightened to one, and the distance between two dividing plates 9 is n
1; If the distance between two lining boss end faces 207 of the gate valve assembling is m
1, the distance between the gear platform 105 on two valve body interior edge faces is m
3, m
3≈ m
1, the distance between two valve body interior edge faces 101 equals the thickness t of dividing plate, t=m
1+ 2c
1; On the square flange 803 that drive unit 7 is rack-mount; Flashboard 4 is placed between two dividing plates 9 and valve body keeps off in the space between platform 105, makes m
1be slightly larger than m
2, n
1be slightly larger than n
2therefore in the space that flashboard can be laid at it, slide up and down, and can extend between the boss end face 207 of two linings, flashboard is connected with drive unit 7 through joint 6 and pin 5, drive unit can drive flashboard to move up and down, this has just formed the first structure gate valve of the present invention, sees accompanying drawing 8; Due to the outer hole 103 aperture A of valve body of the present invention
2be less than the skeleton outer diameter D of lining
3, therefore block lining skeleton, it can not outwards be moved, gate valve lining skeleton of the present invention is affined (this is the main distinction of gate valve of the present invention and existing gate valve) in valve body hole thus; In order to seal reliably between two the lining front-end faces 206 of gate valve that make to assemble, when design, must ensure the height dimension b of leading portion rubber 204
1should leave certain pre compressed magnitude, must make size
if
difference s
1be exactly the pre compressed magnitude of leading portion rubber 204, had the just extruding mutually of two lining front-end faces 206 of pre compressed magnitude, close contact, keeps certain precompression, guarantees that the sealing of lining front-end face is reliable; s
1and s
2size can calculate according to theory, experimental study or posterior infromation determine.
105 guiding of gear platform and position-limiting action on valve body interior edge face, after it can ensure that flashboard enhances between lining, flashboard tip can also be aimed at the interface (restriction flashboard axial dipole field) of two linings preferably, when the downward lock of flashboard lower time, the tip of flashboard can be aimed at the interface of two bushing rubbers preferably, continue downwards, flashboard tip can insert between two lining front-end faces 206 (Figure 10); Flashboard can be decomposed into axial compression power P to the extruding force P of bushing rubber
1with lateral extrusion power P
2; Axial compression power P
1the leading portion rubber 204 of extruding both sides lining is to slippage in skeleton hole, both sides, leading portion rubber by axial force transmission to intermediate section rubber 205, intermediate section rubber again by axial force transmission to skeleton 202 and 201, skeleton again by axial force transmission to valve body, valve body is fixed to wearing bolt 3 fastening; The constraint that is subject to the outer hole 103 of valve body due to lining skeleton axially can not be moved, so only having opened with flashboard, flashboard has that a part of rubber contacting, the rubber that flashboard tip bottom is not also subject to flashboard extruding just can not separate, still closely combine, external leakage so just can not occur; The rubber that is subject to flashboard extruding, has reaction force to flashboard, and rubber can fit tightly on flashboard, and external leakage can not occur yet; When flashboard is inserted into bottom, while inserting between the rubber of two linings completely, flashboard has just sealed the through hole of lining, and now valve is in closed condition, and fluid can not pass through valve.In the time that flashboard upwards promotes, the rubber of flashboard tip bottom, under the effect of cohesive energy elastic force, can merge immediately, and close contact, also can not occur to external leakage; After flashboard enhances completely, lining front-end face all merges, docking, close contact, also can not occur to external leakage, and now valve is on state, allow fluid to pass through valve, therefore gate valve of the present invention not only in the time that flashboard cuts out completely or opens two kinds of ultimate states completely sealing be good, and can there is not external leakage in flashboard in the process of cutting out or opening yet, this is an advantage of the present invention.Intermediate section rubber 205 is controlled and supporting effect 204 of leading portion rubber, when present segment rubber 204 is subject to flashboard to push slippage backward, intermediate section rubber 205 also backward slippage and dwindle endoporus increase cohesive energy; Seal action when 210 of back segment rubber are connected with external equipment or pipeline flange.Lateral extrusion power P
2have and make radially the tumble destructive effects of (collapsing) of rubber, therefore should reduce as possible radial force.
As seen from Figure 9, as valve length dimension L
1and flashboard thickness size m
2one timing, size m
1also certain (m
1be slightly larger than m
2), because L
1=m
1+ 2c
1+ 2a, so
this formula is labeled as to <2>, with formula <1> comparison, if c
1=0, the valve body thickness of gate valve of the present invention is identical with the existing gate valve of same size; If c
1>0, increases the height c of lining boss
1can reduce the thickness a of valve body, thereby can save material and alleviate the weight of valve.(valve length dimension L
1generally all selecting NBS or international standard, is therefore a fixed number)
When on gate valve of the present invention equipment mounted externally or pipeline, see Figure 10, external equipment or pipeline flange 10 will exceed the part back segment rubber (s of valve body exterior edge face
2) be all pressed into 103 li, the outer hole of valve body, by elasticity and external equipment or the pipeline flange sealing of back segment rubber, back segment rubber has replaced the function of rubber flange in existing gate valve, has started the new mode sealing between valve and external equipment or pipeline flange.
Gate valve length dimension of the present invention also has dividing of hard size and soft size, sees Fig. 9, Figure 10, L
1be hard size, the length dimension that this is made up of steel part, so be called hard size; L
2be soft size, this is the distance size between lining ear end face 211, because rubber is resilient, so be called soft size, soft size L
2=L
1+ 2s
2; In the time that this valve installation is on pipeline, pipeline flange 10 compresses lining ear end face 211, will exceed the part back segment rubber (s of valve body exterior edge face
2) be all pressed into 103 li, the outer hole of valve body, make the length of installation of valve finally equal the steel part length dimension L of valve
1, after therefore this valve installation uses, compressed the becoming of soft size equals hard size, and after valve installation, length dimension is unique, determines, and the performance of valve is not subject to install to be affected, and this is the difference of gate valve of the present invention and existing gate valve installation results.
Gate valve of the present invention in use, in the time that the hydrodynamic pressure of flashboard both sides is different, flashboard can move to the less lateral deviation of pressure, boss on lining can limit flashboard skew, now flashboard can be pressed on the boss of the less side lining of pressure, because the end face of boss is lined with thin layer rubber 203, therefore flashboard can't directly contact with skeleton, but contact with rubber, if now flashboard opens and closes motion, flashboard just slides on rubber layer surface, can avoid like this flashboard surface to be scratched by hardware (skeleton), lining front-end face 206 is not subject to flashboard yet and scratches, the working life of flashboard and lining will be longer.
Useful effect
Gate valve of the present invention is compared and is had following remarkable advantage with existing gate valve: 1. lining is arranged in the shoulder hole of valve body from inside to outside, and lining skeleton has been blocked in the outer hole of valve body, and it can not outwards be moved, and therefore lining skeleton is affined in valve body hole.2. flashboard not only in the time closing completely or open two kinds of ultimate states completely valve without leakage, and in the process of closing or opening also without leak.3. before lining skeleton of the present invention, designed a boss, boss total height is c
1, therefore, compared with the existing gate valve of same size, valve body thickness of the present invention can reduce c
1, thereby can save material and alleviate the weight of valve.4. back segment rubber and external equipment or pipeline flange sealing for the present invention, has replaced the function of rubber flange in prior art, has started the new mode sealing between valve and external equipment or pipeline flange; 5. after valve installation uses, compressed the becoming of soft size equals hard size, and therefore after valve installation, length dimension is unique, determines, valve performance is stable, and can not be subject to install affects.6. because the end face of lining skeleton boss is lined with thin layer rubber, therefore flashboard can directly not contact with skeleton, and flashboard can only slide on rubber layer surface, and the surface of flashboard is not subject to hardware and scratches, lining front-end face is also difficult for being scratched, and the working life of flashboard and lining can be longer.7. support and dividing plate are more reasonable than gantry frame structure, more save material, and weight is lighter, and manufacturing expense is lower.
Brief description of the drawings:
Accompanying drawing 2 is valve body 1 and lining 2 assembly relation enlarged views in Fig. 1.
Accompanying drawing 3 is that liner size changes and force analysis figure on existing gate valve equipment mounted externally or pipeline time.
Accompanying drawing 4 is tectonic mapss of existing gate valve lining 2.
Accompanying drawing 5 is tectonic mapss of existing gate valve valve body 1.
Accompanying drawing 6 is tectonic mapss of existing gate valve portal frame 8.
Accompanying drawing 7 is tectonic mapss of existing gate plate of gate valve 4.
Accompanying drawing 8 is the first schematic diagram of structure of gate valve of the present invention.
Accompanying drawing 9 is valve body 1 and lining 2 assembly relation enlarged views in accompanying drawing 8.
Accompanying drawing 10 is that liner size changes and force analysis figure on gate valve of the present invention equipment mounted externally or pipeline time.
Accompanying drawing 11 is tectonic mapss of dividing plate 9 of the present invention.
Accompanying drawing 12 is tectonic mapss of valve body 1 of the present invention.
Accompanying drawing 13 is interior graphs of a relation of shoulder hole that lining 2 of the present invention is arranged on valve body 1.
Accompanying drawing 14 is that valve body of the present invention adopts taper hole valve body, graph of a relation when lining adopts the constraint of conical ring skeleton lining.
Accompanying drawing 15 is that valve body of the present invention adopts straight hole valve body, graph of a relation when lining adopts T-shaped skeleton lining constraint.
Accompanying drawing 16 is tectonic mapss of lining 2 of the present invention.
Accompanying drawing 17 is the first tectonic mapss of support 8 of the present invention.
Accompanying drawing 18 is the second tectonic mapss of support 8 of the present invention.
Accompanying drawing 19 is the second schematic diagram of structure of gate valve of the present invention.
Accompanying drawing 20 is tectonic mapss of valve body 13 of the present invention.
Accompanying drawing 21 is tectonic mapss of lining 14 of the present invention.
In accompanying drawing 1: 1-valve body, 2-lining, 3-is to wearing bolt, 4-flashboard, 5-pin, 6-joint, 7-cylinder, 8-portal frame.
In accompanying drawing 2: 1-valve body, 2-lining.
In accompanying drawing 3: 9-pipeline flange, 10-connecting bolt.
In accompanying drawing 4: 201-skeleton, 202-leading portion rubber, 203-intermediate section rubber, 204-lining front-end face, 205-rubber flange interior edge face, 206-lining ear end face, 207-back segment rubber, 208-rubber flange.
In accompanying drawing 5: 101-valve body interior edge face, 102-valve body exterior edge face.
In accompanying drawing 6: 801-guide plate, 802-gusset, 803-polygonal flange.
In accompanying drawing 8: 1-valve body, 2-lining, 3-is to wearing bolt, 4-flashboard, 5-pin, 6-joint, 7-drive unit, 8-support, 9-dividing plate.
In accompanying drawing 9: 1-valve body, 2-lining.
In accompanying drawing 10: 10-pipeline flange, 11-connecting bolt.
In accompanying drawing 12: 101-valve body interior edge face, 102-valve body inner bore, the outer hole of 103-valve body, 104-hole base ring platform, 105-keeps off platform, 106-valve body exterior edge face.
In accompanying drawing 13: 1-valve body, 2-lining.
In accompanying drawing 14: 1-taper hole valve body, 2-conical ring skeleton lining.
In accompanying drawing 15: 1-straight hole valve body, 2-T type skeleton lining.
In accompanying drawing 16: 201-skeleton, 202-boss, 203-thin layer rubber, 204-leading portion rubber, 205-intermediate section rubber, 206-lining front-end face, 207-boss end face, 208-skeleton front-end face, 209-skeleton ear end face, 210-back segment rubber, 211-lining ear end face.
In accompanying drawing 17: 801-otic placode, 802-supporting leg, 803-square flange.
In accompanying drawing 18: 801-otic placode, 802-supporting leg, 803-square flange.
In accompanying drawing 19: 13-valve body, 14-lining, 3-is to wearing bolt, 4-flashboard, 5-pin, 6-joint, 7-drive unit, 8-support, 9-dividing plate.
In accompanying drawing 20: 101-valve body interior edge face, 102-valve body inner bore, the outer hole of 103-valve body, 104-hole base ring platform, 105-keeps off platform, 106-valve body exterior edge face, 107-pipe, 108-round flange, 109-square flange.
In accompanying drawing 21: 201-skeleton, 202-boss, 203-thin layer rubber, 204-leading portion rubber, 205-intermediate section rubber, 206-lining front-end face, 207-boss end face, 208-skeleton front-end face, 209-skeleton ear end face, 210-back segment rubber, 211-lining ear end face.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 8 is first embodiment of gate valve of the present invention, belongs to short valve body structure, is most preferred embodiment, and it is mainly by valve body 1, lining 2, and to wearing bolt 3, flashboard 4, pin 5, joint 6, drive unit 7, support 8, dividing plate 9 compositions such as component such as grade.Fig. 9 is valve body 1 and lining 2 assembly relation enlarged views in Fig. 8.Figure 10 is that liner size changes and force analysis figure on gate valve of the present invention equipment mounted externally or pipeline time, in figure: pipeline flange 10; Connecting bolt 11.
Lining 2 structures of the present invention are shown in Figure 16, formed by skeleton and rubber, and skeleton 201, external diameter is D
3, internal diameter is D
2, be highly c
2, skeleton front-end face 208, skeleton ear end face 209, has boss 202 before skeleton, is highly c
3, boss 202 also belongs to a part for skeleton, boss above to have thin layer rubber 203, thickness be c
4, boss total height is c
1, c
1=c
3+ c
4, boss end face 207, skeleton and rubber are combined into one, and rubber is play a part to control and fixing; Rubber axis is to being divided into three sections of compositions: (1) leading portion rubber: the rubber on boss end face 207 right sides is called leading portion rubber 204, and its external diameter is D
1, internal diameter is D
0, be highly b
1, make D
1≤ D
2, this is conducive to leading portion rubber 204 and is subject to flashboard when extruding to slippage in skeleton hole; (2) intermediate section rubber: thin layer rubber and skeleton brute force in skeleton hole on rubber and boss end face are bonded together, and this section of rubber is called intermediate section rubber 205, and axial dimension is b
2, b
2=c
1+ c
2; (3) back segment rubber: one section of rubber in skeleton left side is called back segment rubber 210, and external diameter is D
4, internal diameter is D
5, axial dimension is b
3, three sections of rubber are an entirety, just be just divided into artificially three sections, lining front-end face 206, lining ear end face 211 for problem analysis is convenient.
The first structure of support 8 of the present invention is shown in Figure 17, and it is mainly by otic placode 801, supporting leg 802, and square flange 803 is welded; The section steel material manufactures such as the easy-to-use angle bar of supporting leg, its upper end is overlapped on the edge of square flange, and lower end is welded on otic placode, and entirety becomes truss structure, apparent with portal frame contrast, truss structure bulk is larger, and rigidity is larger, more reasonable structure, square flange is better than polygonal flange structure, more save material, weight is also lighter, and the manufacturing expense of support can be lower.
The second structure of support 8 of the present invention is shown in Figure 18, and it is also by otic placode 801, supporting leg 802, and square flange 803 is welded; Supporting leg upper end is welded on the four corners position below square flange, and lower end is welded on otic placode.
The structure of two kinds of supports of the present invention is slightly different, but function is the same, is all the member that connects valve body and drive unit.
The structure of dividing plate 9 of the present invention is shown in Figure 11, is made up of a rectangular plate, and thickness is t.
Assembling: moving cooperation is arranged in the shoulder hole of valve body 1 lining 2 from inside to outside, see Figure 13, lining skeleton 201 is contained in 102 li of valve body inner bore, skeleton ear end face 209 is pressed on the hole base ring platform 104 of valve body, skeleton front-end face 208 concordant with valve body interior edge face 101 (or a little less than valve body interior edge face), boss end face 207 exceeds valve body interior edge face 101, is highly c
1; Lining back segment rubber 210 is contained in 103 li, the outer hole of valve body, and lining ear end face 211, through valve body hole, exceeds the exterior edge face 106 of valve body, is highly s
2, s
2=b
3-a
2, s
2be the reserved decrement of back segment rubber, this is while being connected with external equipment or pipeline flange for this valve, ensures that connecting flange faces does not leak and designs; Lining 2 must be arranged in the shoulder hole of valve body 1 first from inside to outside, then they is arranged on together to the both sides of dividing plate 9, then they are put between the otic placode 801 of support together, uses, to wearing bolt 3, they is tightened to one, and the distance between two dividing plates 9 is n
1; If the distance between two lining boss end faces 207 of the gate valve assembling is m
1, the distance between the gear platform 105 on two valve body interior edge faces is m
3, m
3≈ m
1, the distance between two valve body interior edge faces 101 equals the thickness t of dividing plate, t=m
1+ 2c
1; On the square flange 803 that drive unit 7 is rack-mount; Flashboard 4 is placed between two dividing plates 9 and valve body keeps off in the space between platform 105, makes m
1be slightly larger than m
2, n
1be slightly larger than n
2therefore in the space that flashboard can be laid at it, slide up and down, and can extend between the boss end face 207 of two linings, flashboard is connected with drive unit 7 through joint 6 and pin 5, drive unit can drive flashboard to move up and down, this has just formed the first structure gate valve of the present invention, sees accompanying drawing 8; Due to the outer hole 103 aperture A of valve body of the present invention
2be less than the skeleton outer diameter D of lining
3, therefore block lining skeleton, it can not outwards be moved, gate valve lining skeleton of the present invention is affined (this is a main distinction of it and existing gate valve) in valve body hole thus; In order to seal reliably between two the lining front-end faces 206 of gate valve that make to assemble, when design, must ensure the height dimension b of leading portion rubber 204
1should leave certain pre compressed magnitude, must make size
if
difference s
1be exactly the pre compressed magnitude of leading portion rubber 204, had the just extruding mutually of two lining front-end faces 206 of pre compressed magnitude, close contact, keeps certain precompression, guarantees that the sealing of lining front-end face is reliable; s
1and s
2size can calculate according to theory, experimental study or posterior infromation determine.
Figure 19 is second embodiment of gate valve of the present invention, belong to long valve body structure, it is mainly by valve body 13, lining 14, to wearing bolt 3, flashboard 4, pin 5, joint 6, drive unit 7, support 8, dividing plate 9 component such as grade compositions, in fact this is to replace valve body 1 in accompanying drawing 8 and the new gate valve of lining 2 rear formations with valve body 13 of the present invention and lining 14.Figure 19 gate valve is longer than the structure length of Fig. 8 gate valve, can meet the demand of user to product diversity.
The structure of valve body 13 of the present invention is shown in Figure 20, and it is by square flange 109, and round flange 108 and pipe 107 form, and valve body interior edge face 101 has two gear platforms 105 on interior edge face, and gear platform height is c
5, c
5≈ c
1,, there is a shoulder hole valve body exterior edge face 106 in the middle of valve body, be called valve body inner bore 102 near the hole of interior edge face, and aperture is A
1, the degree of depth is a
1, hole base ring platform 104, is called the outer hole 103 of valve body near the hole of exterior edge face, and aperture is A2, and length is a2, and valve body thickness is a.
The structure of lining 14 of the present invention is shown in Figure 21, formed by skeleton and rubber, and skeleton 201, external diameter is D
3, internal diameter is D
2, be highly c
2, skeleton front-end face 208, skeleton ear end face 209, has boss 202 before skeleton, is highly c
3, boss 202 also belongs to a part for skeleton, boss above to have thin layer rubber 203, thickness be c
4, boss total height is c
1, c
1=c
3+ c
4, boss end face 207, skeleton and rubber are combined into one, and rubber is play a part to control and fixing; Rubber axis is to being divided into three sections of compositions: (1) leading portion rubber: the rubber on boss end face 207 right sides is called leading portion rubber 204, and its external diameter is D
1, internal diameter is D
0, be highly b
1, make D
1≤ D
2, this is conducive to leading portion rubber 204 and is subject to flashboard when extruding to slippage in skeleton hole; (2) intermediate section rubber: thin layer rubber and skeleton brute force in skeleton hole on rubber and boss end face are bonded together, and this section of rubber is called intermediate section rubber 205, and axial dimension is b
2, b
2=c
1+ c
2; (3) back segment rubber: one section of rubber in skeleton left side is called back segment rubber 210, and external diameter is D
4, internal diameter is D
5, axial dimension is b
3, lining front-end face 206, lining ear end face 211.
Assembling: moving cooperation is arranged in the shoulder hole of valve body 13 lining 14 from inside to outside, lining skeleton 201 is contained in 102 li of valve body inner bore, skeleton ear end face 209 is pressed on hole base ring platform 104, skeleton front-end face 208 concordant with valve body interior edge face 101 (or a little less than valve body interior edge face), boss end face 207 exceeds valve body interior edge face 101, is highly c
1; Lining back segment rubber 210 is contained in 103 li, the outer hole of valve body, and lining ear end face 211, through valve body hole, exceeds valve body exterior edge face 106, is highly s
2, s
2=b
3-a
2, s
2be the reserved decrement of back segment rubber, this is while being connected with external equipment or pipeline flange for this valve, ensures that connecting flange faces does not leak and designs; Lining 14 must be arranged in the shoulder hole of valve body 13 first from inside to outside, then they are arranged on together to the both sides of dividing plate 9, they are put between the otic placode 801 of support together again, use, to wearing bolt 3, they are tightened to one, the distance between two dividing plates 9 is n
1; If the distance between two lining boss end faces 207 of the gate valve assembling is m
1, the distance between the gear platform 105 on two valve body interior edge faces is m
3, m
3≈ m
1, the distance between two valve body interior edge faces 101 equals the thickness t of dividing plate, t=m
1+ 2c
1; On the square flange 803 that drive unit 7 is rack-mount; Flashboard 4 is placed between two dividing plates 9 and valve body keeps off in the space between platform 105, makes m
1be slightly larger than m
2, n
1be slightly larger than n
2therefore in the space that flashboard can be laid at it, slide up and down, and can extend between the boss end face 207 of two linings, flashboard is connected with drive unit 7 through joint 6 and pin 5, drive unit can drive flashboard to move up and down, this has just formed the second structure gate valve of the present invention (long valve body structure), sees accompanying drawing 19; Due to the outer hole 103 aperture A of valve body of the present invention
2be less than the skeleton outer diameter D of lining
3, therefore block lining skeleton, it can not outwards be moved, gate valve lining skeleton of the present invention is affined (this is a main distinction of it and existing gate valve) in valve body hole thus; In order to seal reliably between two the lining front-end faces 206 of gate valve that make to assemble, when design, must ensure the height dimension b of leading portion rubber 204
1should leave certain pre compressed magnitude, must make size
if
difference s1 is exactly the pre compressed magnitude of leading portion rubber 204, has had the just extruding mutually of two lining front-end faces 206 of pre compressed magnitude, and close contact, keeps certain precompression, guarantees that the sealing of lining front-end face is reliable; s
1and s
2size can calculate according to theory, experimental study or posterior infromation determine.
Before the skeleton of lining 2 of the present invention and lining 14, there is boss 202, height c
3>=0; Before boss, there is thin layer rubber 203, thickness c
4>=0; Boss total height is c
1, c
1=c
3+ c
4>=0.So: work as c
3=0 o'clock, c
1=c
4, this explanation boss total height equals the thickness of thin layer rubber 203; Work as c
4=0 o'clock, c
1=c
3, this explanation boss total height equals the height of boss 202; Work as c
1=0 o'clock, what be equivalent to skeleton did not have boss above, and this is three kinds of special cases of bush structure of the present invention.
The major character of gate valve of the present invention is that the skeleton on lining is tied in valve body hole, not only can adopt shoulder hole mode according to the affined mode of this feature request lining skeleton, also can adopt alternate manner, example as shown in figure 14, valve body adopts taper hole valve body, lining adopts conical ring skeleton lining, and this conical surface the way of restraint is also fine; As shown in figure 15, valve body adopts straight hole valve body, and lining adopts T-shaped skeleton lining, and the way of restraint of this T-shaped skeleton lining and straight hole is also fine; Can also valve body adopt interior threaded hole, lining skeleton adopts outside thread, and this being threaded also can (without figure) with the way of restraint; Certainly can also design a variety of the way of restraint, these the way of restraint all belong to the scope of requirement patent protection of the present invention.
Valve body of the present invention, lining, support, dividing plate can mutually be replaced and constitute new gate valve with the component of existing gate valve; these new gate valves at least comprise component of the present invention; have certain advance compared with existing gate valve, these gate valves also belong to the scope of requirement patent protection of the present invention.
The drive unit of gate valve of the present invention can adopt the existing all drive units of valve field, such as manual, pneumatic, hydraulic pressure, the drive unit such as electronic.
Claims (7)
1. valve body of the present invention, lining, support, dividing plate and gate valve are that main parts size and the combination thereof to existing gate valve innovated and improve, therefore invented the valve body that these have new feature, lining, support, dividing plate and gate valve, this is the multinomial invention around this total invention conception of gate valve, this gate valve is applicable to metallurgy, mine, the field convection cells such as electric power, particularly contain ore, the slag slurry fluids such as silt particle are closed or conducting control action, this gate valve is mainly by valve body (1) and lining (2) or valve body (13) and lining (14) and to wearing bolt (3), flashboard (4), pin (5), joint (6), drive unit (7), support (8), the component compositions such as dividing plate (9), it is characterized in that: valve body (1) is made up of a block method orchid, valve body interior edge face (101), on interior edge face, there is gear platform (105), gear platform height is c
5, c
5≈ c
1, valve body exterior edge face (106), have a shoulder hole in the middle of valve body, be called valve body inner bore (102) near the hole of interior edge face, and aperture is A
1, the degree of depth is a
1, hole base ring platform (104), is called the outer hole (103) of valve body near the hole of exterior edge face, and aperture is A
2, length is a
2, valve body thickness is a, lining (2) is made up of skeleton and rubber, skeleton (201), and external diameter is D
3, internal diameter is D
2, be highly c
2, skeleton front-end face (208), skeleton ear end face (209), has boss (202) before skeleton, is highly c
3, boss (202) also belongs to a part for skeleton, has thin layer rubber (203) before boss, and thickness is c
4, boss total height is c
1, c
1=c
3+ c
4, boss end face (207), skeleton and rubber are combined into one, rubber is risen and controlled and fixation, rubber axis is to being divided into three sections of compositions, (1) leading portion rubber: the rubber on boss end face (207) right side is called leading portion rubber (204), and its external diameter is D
1, internal diameter is D
0, be highly b
1, make D
1≤ D
2, (2) intermediate section rubber: thin layer rubber and skeleton brute force in skeleton hole and on boss end face are bonded together, this section of rubber is called intermediate section rubber (205), and axial dimension is b
2, b
2=c
1+ c
2, (3) back segment rubber: one section of rubber in skeleton left side is called back segment rubber (210), and external diameter is D
4, internal diameter is D
5, axial dimension is b
3, lining front-end face (206), lining ear end face (211), valve body (13) is by square flange (109), and round flange (108) and pipe (107) form, and valve body interior edge face (101), has gear platform (105) on interior edge face, and gear platform height is c
5, c
5≈ c
1, valve body exterior edge face (106), have a shoulder hole in the middle of valve body, be called valve body inner bore (102) near the hole of interior edge face, and aperture is A
1, the degree of depth is a
1, hole base ring platform (104), is called the outer hole (103) of valve body near the hole of exterior edge face, and aperture is A
2, length is a
2, valve body thickness is a, lining (14) is made up of skeleton and rubber, skeleton (201), and external diameter is D
3, internal diameter is D
2, be highly c
2, skeleton front-end face (208), skeleton ear end face (209), has boss (202) before skeleton, is highly c
3, boss (202) also belongs to a part for skeleton, boss above have thin layer rubber (203), thickness is c
4, boss total height is c
1, c
1=c
3+ c
4boss end face (207), skeleton and rubber are combined into one, rubber is play a part to control and fixing, rubber axis is to being divided into three sections of compositions, (1) leading portion rubber: the rubber on boss end face (207) right side is called leading portion rubber (204), and its external diameter is D
1, internal diameter is D
0, be highly b
1, make D
1≤ D
2, (2) intermediate section rubber: thin layer rubber and skeleton brute force in skeleton hole on rubber and boss end face are bonded together, this section of rubber is called intermediate section rubber (205), and axial dimension is b
2, b
2=c
1+ c
2, (3) back segment rubber: one section of rubber in skeleton left side is called back segment rubber (210), and external diameter is D
4, internal diameter is D
5, axial dimension is b
3, lining front-end face (206), lining ear end face (211), support (8) is mainly by otic placode (801), supporting leg (802), square flange (803) is welded, and supporting leg upper end is welded on the edge of square flange or is welded on the four corners position below square flange, lower end is welded on otic placode, makes truss structure, dividing plate (9) is made up of a rectangular plate, and thickness is t.
2. gate valve according to claim 1 is characterized in that: lining (2) is arranged in the shoulder hole of valve body (1) from inside to outside, it is inner that lining skeleton (201) is contained in valve body inner bore (102), skeleton ear end face (209) is pressed on the hole base ring platform (104) of valve body, skeleton front-end face (208) concordant with valve body interior edge face (101) (or a little less than valve body interior edge face), boss end face (207) exceeds valve body interior edge face (101), is highly c
1, it is inner that lining back segment rubber (210) is contained in the outer hole (103) of valve body, and lining ear end face (211), through valve body hole, exceeds the exterior edge face (106) of valve body, is highly s
2, s
2=b
3-a
2, s
2it is the reserved decrement of back segment rubber, this is while being connected with external equipment or pipeline flange for this valve, ensure that connecting flange faces does not leak and designs, lining of the present invention (2) must be arranged in the shoulder hole of valve body (1) first from inside to outside, then they are arranged on together to the both sides of dividing plate (9), again they are put between the otic placode (801) of support together, with they being tightened to one to wearing bolt 3, the distance between two dividing plates (9) is n
1, the distance of establishing between two the lining boss end faces of gate valve (207) that assemble is m
1, the distance between the gear platform (105) on two valve body interior edge faces is m
3, m
3≈ m
1, the distance between two valve body interior edge faces (101) equals the thickness t of dividing plate, t=m
1+ 2c
1on the square flange (803) that drive unit (7) is rack-mount; Flashboard (4) thickness is m
2, width is n
2, be placed between two dividing plates (9) and valve body gear platform (105) between space in, make m
1be slightly larger than m
2, n
1be slightly larger than n
2therefore in the space that flashboard can be laid at it, slide up and down, and can extend between the boss end face (207) of two linings, flashboard is connected with drive unit (7) through joint (6) and pin (5), drive unit can drive flashboard to move up and down, this has just formed the first structure gate valve of the present invention, belongs to short valve body structure gate valve, due to outer hole (103) the aperture A of valve body of the present invention
2be less than the skeleton outer diameter D of lining
3therefore blocked lining skeleton, it can not outwards be moved, gate valve lining skeleton of the present invention is affined in valve body hole thus, in order to seal reliably between two the lining front-end faces of gate valve (206) that make to assemble, when design, must ensure the height dimension b of leading portion rubber (204)
1should leave certain pre compressed magnitude, must make size
if
difference s
1be exactly the pre compressed magnitude of leading portion rubber (204), had the just extruding mutually of two lining front-end faces (206) of pre compressed magnitude, close contact, keeps certain precompression, guarantees that the sealing of lining front-end face is reliable, s
1and s
2size can calculate according to theory, experimental study or posterior infromation determine.
3. gate valve according to claim 1 is characterized in that: lining (14) is arranged in the shoulder hole of valve body (13) from inside to outside, it is inner that lining skeleton (201) is contained in valve body inner bore (102), skeleton ear end face (209) is pressed on the hole base ring platform (104) of valve body, skeleton front-end face (208) concordant with valve body interior edge face (101) (or a little less than valve body interior edge face), boss end face (207) exceeds valve body interior edge face (101), is highly c
1, it is inner that lining back segment rubber (210) is contained in the outer hole (103) of valve body, and lining ear end face (211), through valve body hole, exceeds the exterior edge face (106) of valve body, is highly s
2, s
2=b
3-a
2, s
2it is the reserved decrement of back segment rubber, this is while being connected with external equipment or pipeline flange for this valve, ensure that connecting flange faces does not leak and designs, lining of the present invention (14) must be arranged in the shoulder hole of valve body (13) first from inside to outside, then they are arranged on together to the both sides of dividing plate (9), again they are put between the otic placode (801) of support together, with they being tightened to one to wearing bolt 3, the distance between two dividing plates (9) is n
1, the distance of establishing between two the lining boss end faces of gate valve (207) that assemble is m
1, the distance between the gear platform (105) on two valve body interior edge faces is m
3, m
3≈ m
1, the distance between two valve body interior edge faces (101) equals the thickness t of dividing plate, t=m
1+ 2c
1; On the square flange (803) that drive unit (7) is rack-mount; Flashboard (4) thickness is m
2, width is n
2, be placed between two dividing plates (9) and valve body gear platform (105) between space in, make m
1be slightly larger than m
2, n
1be slightly larger than n
2therefore in the space that flashboard can be laid at it, slide up and down, and can extend between the boss end face (207) of two linings, flashboard is connected with drive unit (7) through joint (6) and pin (5), drive unit can drive flashboard to move up and down, this has just formed the second structure gate valve of the present invention, belongs to long valve body structure gate valve, due to outer hole (103) the aperture A of valve body of the present invention
2be less than the skeleton outer diameter D of lining
3therefore blocked lining skeleton, it can not outwards be moved, gate valve lining skeleton of the present invention is affined in valve body hole thus, in order to seal reliably between two the lining front-end faces of gate valve (206) that make to assemble, when design, must ensure the height dimension b of leading portion rubber (204)
1should leave certain pre compressed magnitude, must make size
if
difference s
1be exactly the pre compressed magnitude of leading portion rubber (204), had the just extruding mutually of two lining front-end faces (206) of pre compressed magnitude, close contact, keeps certain precompression, guarantees that the sealing of lining front-end face is reliable, s
1and s
2size can calculate according to theory, experimental study or posterior infromation determine.
4. lining according to claim 1 (2) and lining (14) is characterized in that: the skeleton (201) on lining has boss (202) above, height c
3>=0, there is thin layer rubber (203), thickness c before boss
4>=0, boss total height is c
1, c
1=c
3+ c
4>=0, work as c
3=0 o'clock, c
1=c
4, this explanation boss total height equals the thickness of thin layer rubber (203), works as c
4=0 o'clock, c
1=c
3, this explanation boss total height equals the height of boss (202), works as c
1=0 o'clock, what be equivalent to skeleton (201) did not have boss above, and this is three kinds of special cases of bush structure of the present invention.
5. gate valve according to claim 1 is characterized in that: the skeleton on lining is tied in valve body hole, not only can adopt shoulder hole mode according to the affined mode of this feature request lining skeleton, also can adopt alternate manner, for example valve body adopts taper hole valve body, lining adopts conical ring skeleton lining, this conical surface the way of restraint is also fine, valve body adopts straight hole valve body, lining adopts T-shaped skeleton lining, the way of restraint of this T-shaped skeleton lining and straight hole is also fine, can also adopt interior threaded hole by valve body, lining skeleton adopts outside thread, this be threaded also passable with the way of restraint, certainly can also design a variety of the way of restraint, these the way of restraint all belong to the scope of requirement patent protection of the present invention.
6. valve body of the present invention according to claim 1, lining, support, dividing plate can mutually be replaced and constitute new gate valve with the component of existing gate valve; these new gate valves at least comprise component of the present invention; have certain advance compared with existing gate valve, these new gate valves also belong to the present invention and require the scope of patent protection.
7. gate valve according to claim 1 is characterized in that: drive unit can adopt the existing all drive units of valve field, such as manual, pneumatic, hydraulic pressure, the drive unit such as electronic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129427.1A CN103899778B (en) | 2014-03-23 | 2014-03-23 | Slide valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129427.1A CN103899778B (en) | 2014-03-23 | 2014-03-23 | Slide valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899778A true CN103899778A (en) | 2014-07-02 |
| CN103899778B CN103899778B (en) | 2019-05-21 |
Family
ID=50991284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410129427.1A Active CN103899778B (en) | 2014-03-23 | 2014-03-23 | Slide valve |
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| Country | Link |
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| CN (1) | CN103899778B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235411A (en) * | 2014-10-13 | 2014-12-24 | 凯阀科技(厦门)有限公司 | Gate valve with rubber bushings |
| CN110296226A (en) * | 2019-03-15 | 2019-10-01 | 青海中控太阳能发电有限公司 | A kind of self-cleaning operated pneumatic valve |
| CN111306313A (en) * | 2020-03-11 | 2020-06-19 | 中诚阀门集团有限公司 | High-abrasion-resistance aluminum oxide zirconium copper gold iron tailing pulp valve |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060836U (en) * | 1989-11-24 | 1990-08-22 | 鞍钢大孤山选矿综合工业公司 | Gate valve all-sealed and swelled in two sides |
| US5413140A (en) * | 1994-06-29 | 1995-05-09 | Warman International Ltd. | Spring-assisted split seat gate valve |
| JP2569978Y2 (en) * | 1993-02-23 | 1998-04-28 | 前澤工業株式会社 | Externally threaded gate valve |
| CN201606514U (en) * | 2010-01-08 | 2010-10-13 | 安徽金诚汽车科技有限公司 | Drain valve |
| CN201661699U (en) * | 2010-03-11 | 2010-12-01 | 浙江固特气动机械有限公司 | Flat-plate gate valve |
| CN201787105U (en) * | 2010-08-27 | 2011-04-06 | 李卫军 | Totally enclosed lift type flow passage gate valve |
| CN102705521A (en) * | 2012-05-18 | 2012-10-03 | 中材建设有限公司 | Ultra-high temperature resistant horizontally-arranged gate valve |
| CN202531948U (en) * | 2012-04-16 | 2012-11-14 | 福建海洋铜业有限公司 | Novel flange gate valve |
| CN202561198U (en) * | 2012-05-23 | 2012-11-28 | 洪宝玉 | Groove-type elastic seat-sealed gate valve |
| CN202659936U (en) * | 2012-05-16 | 2013-01-09 | 泉州市沪航阀门制造有限公司 | Flexible seat seal gate valve |
| CN203979450U (en) * | 2014-03-23 | 2014-12-03 | 王培锋 | Gate valve |
-
2014
- 2014-03-23 CN CN201410129427.1A patent/CN103899778B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060836U (en) * | 1989-11-24 | 1990-08-22 | 鞍钢大孤山选矿综合工业公司 | Gate valve all-sealed and swelled in two sides |
| JP2569978Y2 (en) * | 1993-02-23 | 1998-04-28 | 前澤工業株式会社 | Externally threaded gate valve |
| US5413140A (en) * | 1994-06-29 | 1995-05-09 | Warman International Ltd. | Spring-assisted split seat gate valve |
| CN201606514U (en) * | 2010-01-08 | 2010-10-13 | 安徽金诚汽车科技有限公司 | Drain valve |
| CN201661699U (en) * | 2010-03-11 | 2010-12-01 | 浙江固特气动机械有限公司 | Flat-plate gate valve |
| CN201787105U (en) * | 2010-08-27 | 2011-04-06 | 李卫军 | Totally enclosed lift type flow passage gate valve |
| CN202531948U (en) * | 2012-04-16 | 2012-11-14 | 福建海洋铜业有限公司 | Novel flange gate valve |
| CN202659936U (en) * | 2012-05-16 | 2013-01-09 | 泉州市沪航阀门制造有限公司 | Flexible seat seal gate valve |
| CN102705521A (en) * | 2012-05-18 | 2012-10-03 | 中材建设有限公司 | Ultra-high temperature resistant horizontally-arranged gate valve |
| CN202561198U (en) * | 2012-05-23 | 2012-11-28 | 洪宝玉 | Groove-type elastic seat-sealed gate valve |
| CN203979450U (en) * | 2014-03-23 | 2014-12-03 | 王培锋 | Gate valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235411A (en) * | 2014-10-13 | 2014-12-24 | 凯阀科技(厦门)有限公司 | Gate valve with rubber bushings |
| CN110296226A (en) * | 2019-03-15 | 2019-10-01 | 青海中控太阳能发电有限公司 | A kind of self-cleaning operated pneumatic valve |
| CN110296226B (en) * | 2019-03-15 | 2020-12-25 | 青海中控太阳能发电有限公司 | Self-cleaning pneumatic valve |
| CN111306313A (en) * | 2020-03-11 | 2020-06-19 | 中诚阀门集团有限公司 | High-abrasion-resistance aluminum oxide zirconium copper gold iron tailing pulp valve |
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| CN103899778B (en) | 2019-05-21 |
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