CN105736706A - Stop valve with bellow type valve element - Google Patents
Stop valve with bellow type valve element Download PDFInfo
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- CN105736706A CN105736706A CN201410732381.2A CN201410732381A CN105736706A CN 105736706 A CN105736706 A CN 105736706A CN 201410732381 A CN201410732381 A CN 201410732381A CN 105736706 A CN105736706 A CN 105736706A
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- 230000003068 static effect Effects 0.000 claims abstract description 30
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- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 3
- 238000003475 lamination Methods 0.000 description 5
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- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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- 239000000945 filler Substances 0.000 description 1
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Abstract
The invention discloses a stop valve with a bellow type valve element. The stop valve comprises a bellow type combined valve element, a valve body, a valve deck, a fastening assembly, a valve rod, an upper sealing gasket, and other components used for different structures. The bellow type combined valve element is formed by connecting a connecting body, a bellows, and a lower core body. In the combined valve element, the connecting body and the valve deck, or the connecting body and the valve deck and the valve body form static sealing connection among each component. The lower core body is connected with the valve rod. When the sealing surface on the lower core body is cooperated with the sealing surface of a valve seat, sealing pair is formed. Since the bellows is in an extension type, the valve rod can drive the lower core body to move on an axial direction of the valve rod. Thus, the sealing pair has two states of close and open, corresponding to two states of close and open of the valve. The stop valve can form two kinds of functional characteristics of a stop valve or a sleeve valve, and can be used as two kinds of valves. No matter the valve is used as what type of valve, the valve has both advantages of the stop valve and the sleeve valve. The stop valve is advantaged by reliable medium sealing, and the sleeve valve is advantaged by having a balance type structure and low axial loading of the valve rod.
Description
Technical field
The present invention relates to a kind of bellows spool pipe valve shape valve, particularly relate to a kind of functional character being formed and there is stop valve or two kinds of valves of telescoping valve, and as the pipe valve shape valve that stop valve or telescoping valve use.
Background technology
The common two kinds of forms of pipe valve shape valve have stop valve and telescoping valve.Traditional stop valve and telescoping valve have respective pluses and minuses in the application, such as, having the advantages of of stop valve: the good airproof performance to medium when closed, can realizing the featuring rigid cutting-off to medium, shortcoming has: during closedown, and the suffered in the axial direction medium active force of valve rod is bigger, required actuator is also bigger, particularly when heavy caliber, big pressure reduction, the power that valve rod bears is bigger, limits its range of application；Conventional sleeve valve mainly has two-seater telescoping valve and single seat telescoping valve two kinds, two-seater telescoping valve is by two sealing surfaces on spool (opening and closing element) and two sealing surfaces on sleeve, form two sealing pairs when Guan Bi and medium is carried out sealing, single seat telescoping valve is that of close valve gap side changes sealing ring periphery fitted seal into and medium is carried out sealing by by the above-mentioned two sealing pair of two-seater telescoping valve.It should be noted that: the sealing version of two kinds of above-mentioned telescoping valves, is common, it is also possible to adopt other version.Having the advantages of of telescoping valve: valve rod born medium active force is less, and required actuator is also less, it is possible to adapting to bigger bore and pressure reduction, shortcoming has: when closed that the sealing of medium is unreliable, leakage rate is bigger.
The pluses and minuses of both the above valve are contrary mutually.
We are unreliable to medium-tight to conventional sleeve valve below, the reason that leakage rate is bigger is analyzed: traditional double seat telescoping valve, when closed, require two sealing surfaces on spool and two sealing surfaces on sleeve, form two sealing pairs with enough seal pressures, medium could be carried out and seal reliably, owing to two sealing surface positions respective in two pieces are relatively-stationary, reach this requirement, the required precision of the position dimension between two sealing surfaces respective on spool and sleeve is significantly high, existing level of processing is difficult to reach such required precision, in addition two sealing pairs are realized reliably sealing also having a great impact by the change of temperature simultaneously, so being extremely difficult to the requirement that media implementation is reliably sealed；And single seat telescoping valve sealing ring therein periphery fitted seal is to lean on its elastic force to form enough seal pressures to realize, abrasion, aging and deformation etc. in use can be produced because of it, and more and more it is not provided that enough elastic force forms enough seal pressures, even can produce gap, and it cannot be guaranteed that media implementation is reliably sealed.As can be seen from the above analysis, the sealing of medium is had respective deficiency by traditional double seat telescoping valve and single seat telescoping valve, causes telescoping valve to have sealing unreliable, the shortcoming that leakage rate is bigger.
Tradition stop valve seals structure only together, is the reason producing its above-mentioned advantage, and balance type structure is realized by two seals structure, and it is not balance type structure, and its disadvantages mentioned above just cannot overcome；Traditional double seat telescoping valve and single seat telescoping valve have two seals structure, and it is balance type structure, be the reason producing its above-mentioned advantage, but the disadvantages mentioned above that two kinds of telescoping valves itself are individually present cannot overcome.Therefore never have a kind of above-mentioned advantage with stop valve and telescoping valve, overcome the valve products of two kinds of valve disadvantages mentioned above.
Summary of the invention
The present invention is directed to tradition stop valve and telescoping valve each cannot have above two valve advantage simultaneously, the problem overcoming above two valve shortcoming, a kind of bellows spool pipe valve shape valve is provided, it can have both above-mentioned advantages simultaneously, overcome both disadvantages mentioned above, and the functional character with stop valve or two kinds of valves of telescoping valve can be formed, and use as stop valve or telescoping valve.
Note: in the present invention, the corresponding sealing surface coordinated with opening and closing element sealing surface can be located on the parts such as connector 1, valve body 4, valve base piece 16, sleeve 21, we are by correspondence sealing surface place part, the part providing sealing surface is referred to as valve seat, part entity such as the sealing surface on mesopore in valve body is provided, it is called valve seat, etc..
The technical solution used in the present invention is: described bellows spool pipe valve shape valve, including: by connector 1, corrugated tube 2 and lower core body 3 couple the bellows combination type spool of composition, valve body 4, valve gap 9, fastening assembly 8, valve rod 6, upper gasket seal 7, and because adopting different structure form and the hexagonal socket nut 5 used, fairlead 10, retaining pad 11, union (screwed)bonnet (UB 12, trip bolt 13, nut 14, lower seal pad 15, valve base piece 16, antirotation keys 17, split annulus 18, screw 19, sealing gasket 20, sleeve 21, butterfly spring 22, valve stem seal corrugated tube 23, labyrinth lamination 24, retainer ring 25, outer many borehole jacks 26, interior many borehole jacks 27, adapter sleeve 28 etc., as required, other parts can also be comprised.It should be noted that actuator unrelated to the invention, support, filler, gland etc. are not mentioned.
It is characterized in that: the spool in this pipe valve shape valve is coupled, by connector, corrugated tube 2, lower core body 3, the bellows combination type spool formed；Valve rod 6 couples with lower core body, lower core body is opening and closing element, it has a sealing surface, when valve closing, the sealing pair 100 that medium is cut off is constituted with the sealing surface on valve seat, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to move up in stem shaft, sealing pair is made to have Guan Bi and open two states, medium is cut off and opens two states by corresponding valve, this medium is cut off and the principle opened, similar with the traditional stop valve only by a sealing pair medium being cut off and opening；In the assembly that valve rod couples with lower core body, it is provided with and medium can be allowed by the lower core body passage in stem shaft upwards both sides, usually on lower core body, have balance pipe 301, other method can also be adopted, as: on valve rod, have the form etc. making medium can pass through the spool groove in stem shaft upwards both sides or hole, medium can being allowed by the lower core body passage in stem shaft upwards both sides because having, it is again balance type structure, similar with the balance type structure of conventional sleeve valve；Connector (non-opening and closing element) can and valve gap 9 between, it is also possible to between valve gap and valve body two pieces formed static seal couple；The present invention, has traditional stop valve simultaneously and telescoping valve produces the structure of advantage as previously mentioned, and it has had traditional stop valve and the foregoing advantage of telescoping valve concurrently, also overcomes two kinds of foregoing shortcomings of valve.
The present invention structurally has significantly different from tradition stop valve；Compared with telescoping valve, all realized by two seals structure although carrying out to seal to medium, but they are distinguishing, the two seals structure of conventional sleeve valve is all consisted of opening and closing element, it is movable sealing or the sealing having open and close two states, and the two seals structure only one of which of the present invention is positioned on opening and closing element, and, connector the sealing structure formed is static seal.
Can deriving its similar modified product with traditional stop valve or telescoping valve the same, the present invention can also derive its similar modified product, during as used as stop valve, core body under opening and closing element is made throttle valve core shape, it is possible to uses as regulating valve, etc.；When using as telescoping valve, it is possible to make the telescoping valve with labyrinth passage, orifice type passage, etc..
This kind of valve, the connector of combination type spool couples with valve cover chamber or with the static seal formed between valve gap and valve body two pieces, can adopt the following mode that is fixedly connected:
A, connector form static seal with valve gap alone and are fixedly connected；
B, connector form static seal with valve body alone and are fixedly connected；
C, connector form static seal between each part be fixedly connected with valve gap and two parts of valve body alone；
D, connector with fairlead 10 or/and form static seal between each part be fixedly connected with valve gap together with sleeve 21；
E, connector with fairlead or/and form static seal between each part be fixedly connected with valve body together with sleeve；
F, connector with fairlead or/and form static seal between each part be fixedly connected with valve gap and two part of valve body together with sleeve.
Although above b, e two is feasible connecting mode principle, but the more bad design being no advantage, generally will not adopt, repeat no more.
The connection of this kind of valve, valve rod and lower core body can adopt and be fixedly connected, it would however also be possible to employ relatively turnable connection, and adopting and can relatively rotating connection is to adapt to the situation that actuator needs valve rod to rotate.
This kind of valve, adopts valve stem seal corrugated tube 23, stops medium to leak from valve rod, can form the valve with corrugated tube packing seal form.Valve stem seal corrugated tube can be weld together with valve rod and fairlead, it is also possible to is the version welded together with valve rod and valve gap, etc..
This kind of valve, connector and in valve pocket medium channel between mesopore be unlimited, medium can smooth and easy pass through, and has stop valve functional character, can use as stop valve.
This kind of valve, connector and between medium channel between mesopore, there is telescoping structure in valve pocket, there is telescoping valve functional character, can use as telescoping valve；The formation of telescoping structure generally has following several ways: a, connector itself are with the extended body regulating window, and it constitutes telescoping structure with mesopore outer edge part overlap joint in valve body；B, connector have specially with valve with regulate window and with in valve body mesopore outward flange overlap joint sleeve part coordinates, composition telescoping structure；C, connector are inherently with the telescoping structure regulating window；What d, connector had specially with valve coordinates with the sleeve part regulating window and partial sleeves cavity, constitutes telescoping structure；E, connector and valve base piece overlap joint constitute telescoping structure, connector or have adjustment window on valve base piece；F, connector constitute the telescoping structure with adjustment window together with other part.
The adjustment window of this kind of valve, it is possible to be positioned on connector, it is also possible to be positioned on valve base piece, it is also possible to the part combination being made up of telescoping structure other is formed.
Valve base piece couples form as required with valve body, it is generally adopted gasket seal to seal, by valve base piece couples with the mode of valve body inner bore screw threads for fastening, or directly mouth coordinates the connecting mode adding gasket seal sealing, the sealing pressure of the latter comes from and valve base piece fixes the assembly force between relevant each part, or fixes, with valve base piece, the elastic force that the such as butterfly spring 22 of the elastic component in relevant part provides；Can also adopt and seal with gasket seal, the flange of flange valve seat piece add the connecting mode of securing member fastening, etc..
Adopt antirotation keys 17, couple valve rod and fairlead or connector, it is therefore an objective to prevent valve rod from rotating, to adapt to the situation that valve requirement valve rod can not rotate.
When need medium pass through the axial both sides of valve rod of fairlead or connector smooth and easy time, medium channel hole A101 or medium channel hole B1001 can be had on connector or fairlead.
In embodiment shown in Fig. 1～Fig. 3, valve rod has sealing surface 601 on valve rod, valve gap has sealing surface 901 on valve gap, when valve fully opens, two sealing surface contacts, sealing pair in formation, meet the requirement with upper sealing structure about standard-required stop valve.
The invention has the beneficial effects as follows: valve is singly seal structure, is again balance type structure, had both traditional stop valve and the foregoing advantage of conventional sleeve valve, overcome two kinds of foregoing shortcomings of valve；When it uses as stop valve or telescoping valve, also each there are traditional stop valve or conventional sleeve valve more NM advantages in the present note.
Accompanying drawing explanation
Fig. 1～Figure 16 is preferred embodiment of the invention structural representation；
Figure 17 is the A place schematic enlarged-scale view of Figure 12；
Figure 18 is the B place schematic enlarged-scale view of Figure 14.
In figure: 1, connector；100, sealing pair；101, medium channel hole A；2, corrugated tube；3, lower core body；301, balance pipe；4, valve body；5, hexagonal socket nut；6, valve rod；601, sealing surface on valve rod；7, upper gasket seal；8, fastening assembly；9, valve gap；901, sealing surface on valve gap；10, fairlead；1001, medium channel hole B；11, retaining pad；12, union (screwed)bonnet (UB；13, trip bolt；14, nut；15, lower seal pad；16, valve seat；17, antirotation keys；18, annulus is split；19, screw；20, gasket seal；21, sleeve；22, butterfly spring；23, valve stem seal corrugated tube；24, labyrinth lamination；25, retainer ring；26, outer many borehole jacks；27, interior many borehole jacks；28, adapter sleeve.
Detailed description of the invention
Below in conjunction with Fig. 1～Figure 16, by preferred embodiment, the present invention will be further described.
Embodiment one: as it is shown in figure 1, combination type spool is made up of connector, corrugated tube, lower core body, three connecting modes adopted are: corrugated tube welds with the outer cylinder of connector and lower core body；Connector and valve gap and valve body, seal with gasket seal 7, fasten with fastening assembly 8, forming static seal between each part to be fixedly connected, the mesopore of connector coordinates with valve rod and play the guiding role, and has had the function of fairlead concurrently, it has medium channel hole A, makes medium smooth and easy to pass through；Valve rod is linked together by hexagonal socket nut 5 with lower core body, can relatively rotate between valve rod and lower core body, lower core body has a sealing surface, when valve closes, being positioned at the sealing surface on valve body mesopore with another and form sealing pair, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to move up in stem shaft, making sealing pair have Guan Bi and open two states, medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；This kind of valve, owing to medium channel between mesopore is unlimited in connector and valve body, has the functional character of stop valve, so it uses as stop valve；Valve rod and valve gap it is respectively provided with on valve rod sealing surface and sealing surface on valve gap, when valve fully opens, sealing pair in formation.
Embodiment two: as in figure 2 it is shown, have with not existing together of example one: a, corrugated tube adopt inner cylinder face to weld with connector；B, add fairlead, it has and coordinates the mesopore playing the guiding role with valve rod, and medium channel hole B, it is fixed by trip bolt 13 and connector；C, valve rod are linked together with lower core body by retaining pad 11 and union (screwed)bonnet (UB 12.All the other are identical with embodiment one.Connector is made flange connector as depicted and is thickeied form, it is possible to makes corrugated tube have bigger deflection, better meets the requirement of the bigger displacement of lower core body.
Embodiment three: as it is shown on figure 3, combination type spool is made up of connector, corrugated tube, lower core body, three connecting modes adopted are: corrugated tube welds with connector inner cylinder face, welds with lower core body external cylindrical surface；Connector together with fairlead with valve gap and valve body, seal with gasket seal, fasten with fastening assembly, forming static seal between each part to be fixedly connected, the mesopore on fairlead coordinates with valve rod, play the guiding role, couple by antirotation keys 17 between fairlead with valve rod, prevent valve rod from rotating, it has medium channel hole B, make medium smooth and easy to pass through；Valve rod is fixedly connected by the screw thread nut 14 on valve rod with lower core body, lower core body has a sealing surface, during valve closing, it is positioned at the sealing surface on valve seat part with another and forms sealing pair, valve base piece lower seal pad 15 seals, by mesopore screw thread in screw thread thereon and valve body, tighten together with valve body, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to do stem shaft and move up, making sealing pair have Guan Bi and open two states, medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；This kind of valve, owing to medium channel between mesopore is unlimited in connector and valve body, has the functional character of stop valve, so it uses as stop valve；Valve rod and valve gap it is respectively provided with on valve rod sealing surface and sealing surface on valve gap, when valve fully opens, sealing pair in formation.
Embodiment four: as shown in Figure 4, combination type spool is made up of connector, corrugated tube, lower core body, and three connecting modes adopted are: corrugated tube welds with the external cylindrical surface of connector and lower core body；Connector and valve gap are sealed by gasket seal 20, fasten with screw 19, form static seal and are fixedly connected, and the mesopore of connector coordinates with valve rod and play the guiding role, and has had the function of fairlead concurrently, it has medium channel hole A, made medium smooth and easy to pass through；Valve rod and lower core body are with splitting annulus 18, retaining pad, it is linked together with union (screwed)bonnet (UB, can relatively rotate, lower core body has a sealing surface, during valve closing, it is positioned at the sealing surface on valve base piece with another and forms sealing pair, valve base piece lower seal gasket seal, by mesopore screw thread in screw thread thereon and valve body, tighten together with valve body, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to move up in stem shaft, sealing pair is made to have Guan Bi and open two states, medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；This kind of valve, owing to the spool shape of choke valve made by lower core body, outline is change, and medium channel between mesopore is unlimited in connector and valve body, so instantly core body in the on state along with valve rod move time, the circulation area opened also is continually changing, play regulate medium circulation effect, there is the function regulating valve, therefore can use as regulating valve.It is off the modified product that valve derives.
Embodiment five: as it is shown in figure 5, combination type spool is made up of connector, corrugated tube, lower core body, three connecting modes adopted are: corrugated tube welds with the inner cylinder face of connector, welds with the external cylindrical surface of lower core body；Connector and valve gap and valve body, seal with gasket seal, fastens with fastening assembly, forms static seal between each part and be fixedly connected, and connector is hollow structure, and medium can smooth and easy pass through；Valve rod is linked together with lower core body retaining pad and union (screwed)bonnet (UB, can relatively rotate, lower core body has a sealing surface, during valve closing, being positioned at the sealing surface on valve body mesopore with another and form sealing pair, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to move up in stem shaft, making sealing pair have Guan Bi and open two states, medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；Connector is made flange connector as depicted and is thickeied form, it is possible to makes corrugated tube have bigger deflection, better meets the requirement of the bigger displacement of lower core body；Owing to connector is per se with regulating window, and form telescoping structure with mesopore overlapping edges in valve body, there is telescoping valve functional character, so it uses as telescoping valve.
Embodiment six: as shown in Figure 6, combination type spool is made up of connector, corrugated tube, lower core body, and three connecting modes adopted are: corrugated tube welds with the inner cylinder face of connector, welds with the external cylindrical surface of lower core body；Connector together with sleeve with valve gap and valve body, with gasket seal seal, with fastening assembly fasten, form static seal between each part and be fixedly connected, connector is hollow structure, and medium can smooth and easy pass through；Valve rod is fixedly connected by screw thread nut thereon and lower core body, lower core body has a sealing surface, during valve closing, it is positioned at the sealing surface on valve body mesopore with another and forms sealing pair, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to move up in stem shaft, makes sealing pair have Guan Bi and open two states, and medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；Due to connector have specially with valve with regulate window and with in valve body mesopore outward flange overlap joint sleeve part coordinates, constitute telescoping structure, there is telescoping valve functional character, thus it as telescoping valve use.Adopt special sleeve part, be able to change easily the sleeve with different windows, to change the discharge characteristic of valve.
Embodiment seven: as it is shown in fig. 7, combination type spool is made up of connector, corrugated tube, lower core body, three connecting modes adopted are: corrugated tube welds with the inner cylinder face of connector, welds with the external cylindrical surface of lower core body；Connector and valve gap and valve body, seal with gasket seal, fasten with fastening assembly, form static seal between each part to be fixedly connected, mesopore edge in valve body, compress sealing with lower seal pad with valve body, seal pressure to be assembled together from connector and valve body, valve gap, the assembly force formed time fixing with fastening assembly, connector is hollow structure, and medium can smooth and easy pass through；Valve rod is fixedly connected by screw thread nut thereon and lower core body, lower core body has a sealing surface, during valve closing, it is positioned at the sealing surface on connector with another and forms sealing pair, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to move up in stem shaft, makes sealing pair have Guan Bi and open two states, and medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；This kind of valve, due to connector inherently with the telescoping structure regulating window, has the functional character of telescoping valve, so it uses as telescoping valve.
Embodiment eight: as shown in Figure 8, combination type spool is made up of connector, corrugated tube, lower core body, and three connecting modes adopted are: corrugated tube welds with the inner cylinder face of connector, welds with the external cylindrical surface of lower core body；Connector together with sleeve with valve gap and valve body, seal with gasket seal, fasten with fastening assembly, forming static seal between each part to be fixedly connected, sleeve adopts straight mouth to coordinate with mesopore in valve body, compresses sealing with lower seal pad with valve body, seal pressure to be assembled together from sleeve and connector, valve body, valve gap, the assembly force formed time fixing with fastening assembly, sleeve and connector are hollow structures, and medium can smooth and easy pass through；Valve rod is fixedly connected by screw thread nut thereon and lower core body, lower core body has a sealing surface, during valve closing, it is positioned at the sealing surface on sleeve with another and forms sealing pair, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to move up in stem shaft, makes sealing pair have Guan Bi and open two states, and medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；Owing to what connector had specially with valve coordinates with the sleeve part regulating window and partial sleeves cavity, constitute telescoping structure, there is telescoping valve functional character, so it uses as telescoping valve.
Embodiment nine: as it is shown in figure 9, combination type spool is made up of connector, corrugated tube, lower core body, three connecting modes adopted are: corrugated tube welds with connector inner cylinder face, welds with lower core body external cylindrical surface；Connector and valve gap and valve body, seal with gasket seal, fastens with fastening assembly, forms static seal between each part and be fixedly connected, and connector is hollow structure, and medium can smooth and easy pass through；Valve rod is fixedly connected by screw thread nut thereon and lower core body, lower core body has a sealing surface, during valve closing, it is positioned at the sealing surface on valve base piece with another and forms sealing pair, valve base piece lower seal gasket seal, by mesopore screw thread in screw thread thereon and valve body, tighten together with valve body, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to move up in stem shaft, making sealing pair have Guan Bi and open two states, medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；Owing to connector constitutes telescoping structure with the valve base piece overlap joint regulating window, there is the functional character of telescoping valve, so it uses as telescoping valve.
Embodiment ten: as shown in Figure 10, except regulating window from moving on to valve base piece except on connector, all the other are identical with embodiment nine.
Embodiment 11: as shown in figure 11, combination type spool is made up of connector, corrugated tube, lower core body, and three connecting modes adopted are: corrugated tube welds with connector inner cylinder face, welds with lower core body external cylindrical surface；Connector and valve gap and valve body, seal with gasket seal, fastens with fastening assembly, forms static seal between each part and be fixedly connected, and connector is hollow structure, and medium can smooth and easy pass through；Valve rod is fixedly connected by screw thread nut thereon and lower core body, lower core body has a sealing surface, during valve closing, it is positioned at the sealing surface on valve base piece with another and forms sealing pair, straight mouth is adopted to coordinate the connection form adding lower seal gasket seal between valve base piece with valve body, this structure, assembling and the replacing of valve base piece are all more convenient, seal pressure and come from the elastic force of butterfly spring between valve base piece and the connector that is fixedly connected, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to move up in stem shaft, sealing pair is made to have Guan Bi and open two states, medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；Owing to connector constitutes telescoping structure with the valve base piece overlap joint regulating window, there is the functional character of telescoping valve, so it uses as telescoping valve.
Embodiment 12: as shown in figure 12, except regulating window from moving on to valve base piece except on connector, all the other are identical with embodiment 11.
Embodiment 13: as shown in figure 13, combination type spool is made up of connector, corrugated tube, lower core body, and three connecting modes adopted are: corrugated tube welds with connector inner cylinder face, welds with lower core body external cylindrical surface；Connector together with fairlead with valve gap and valve body, seal with gasket seal, fasten with fastening assembly, form static seal between each part to be fixedly connected, mesopore on fairlead coordinates with valve rod, it play the guiding role, this kind of valve have employed valve stem seal corrugated tube, medium is stoped to leak from valve rod, define the valve with corrugated tube packing seal form, valve stem seal corrugated tube adopts what weld together with valve rod and fairlead to couple form, and fairlead does not have medium channel hole B, seals so that medium to be formed；Valve rod is fixedly connected by screw thread nut thereon and lower core body, lower core body has a sealing surface, during valve closing, it is positioned at the sealing surface on valve base piece with another and forms sealing pair, straight mouth is adopted to coordinate the connection form adding lower seal gasket seal between valve base piece with valve body, this structure, assembling and the replacing of valve base piece are all more convenient, seal pressure and come from the elastic force of butterfly spring between valve base piece and the connector that is fixedly connected, owing to the corrugated tube between connector with lower core body and valve rod are all scalable components with the valve stem seal corrugated tube being connected inner room, valve rod can drive lower core body to move up in stem shaft, sealing pair is made to have Guan Bi and open two states, medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；Owing to connector constitutes telescoping structure with the valve base piece overlap joint regulating window, there is the functional character of telescoping valve, so it uses as telescoping valve.
Embodiment 14: as shown in figure 14, combination type spool is made up of connector, corrugated tube, lower core body, and three connecting modes adopted are: corrugated tube welds with connector inner cylinder face, welds with lower core body external cylindrical surface；Connector and valve gap and valve body, seal with gasket seal, fasten with fastening assembly, forming static seal between each part to be fixedly connected, connector is hollow structure, and medium can smooth and easy pass through, its external cylindrical surface makes multidiameter shape, on it, suit is with the labyrinth lamination 24 of labyrinth channel, and with the aperture composition labyrinth channel of given shape on connector, labyrinth lamination is welded and fixed by retainer ring 25 and connector；Valve rod and lower core body are linked together by hexagonal socket nut, can relatively rotate between valve rod and lower core body, lower core body has a sealing surface, when valve closes, being positioned at the sealing surface on valve body mesopore with another and form sealing pair, owing to the corrugated tube between connector and lower core body is scalable, valve rod can drive lower core body to move up in stem shaft, making sealing pair have Guan Bi and open two states, medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；Due to be with foraminate connector together with the lamination of labyrinth with mesopore overlapping edges in valve body, formed and there is the telescoping structure of labyrinth channel, there is telescoping valve functional character, so it uses as telescoping valve.
Embodiment 15: as shown in figure 15, combination type spool is made up of connector, corrugated tube, lower core body, and three connecting modes adopted are: corrugated tube welds with connector inner cylinder face, welds with lower core body external cylindrical surface；nullConnector and valve gap and valve body，Seal with gasket seal，Fasten with fastening assembly，Form static seal between each part to be fixedly connected，Connector is hollow structure，Medium can smooth and easy pass through，Valve rod is fixedly connected by screw thread nut thereon and lower core body，Lower core body has a sealing surface，During valve closing，It is positioned at the sealing surface on valve base piece with another and forms sealing pair，Straight mouth is adopted to coordinate the connection form adding lower seal gasket seal between valve base piece with valve body，This structure，Assembling and the replacing of valve base piece are all more convenient，Seal pressure and come from valve seat and valve body、Connector、Valve gap、Outer many borehole jacks 26、Interior many borehole jacks 27 are assembled together，Fasten with fastening assembly，The assembly force formed，Owing to the corrugated tube between connector and lower core body is scalable，Valve rod can drive lower core body to move up in stem shaft，Sealing pair is made to have Guan Bi and open two states，Medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；Owing to connector is by outer many borehole jacks, interior many borehole jacks and valve base piece are pressed on valve body mesopore, form the telescoping structure with pore channels, have telescoping valve functional character, so it uses as telescoping valve.
Embodiment 16: as shown in figure 16, combination type spool is made up of connector, corrugated tube, lower core body, and three connecting modes adopted are: corrugated tube welds with connector inner cylinder face, welds with lower core body external cylindrical surface；nullConnector and valve gap and valve body，Seal with gasket seal，Fasten with fastening assembly，Form static seal between each part to be fixedly connected，Connector is hollow structure，Medium can smooth and easy pass through，Valve rod is fixedly connected by screw thread nut thereon and lower core body，Lower core body has a sealing surface，During valve closing，It is positioned at the sealing surface on valve base piece with another and forms sealing pair，Straight mouth is adopted to coordinate the connection form adding lower seal gasket seal between valve base piece with valve body，This structure，Assembling and the replacing of valve base piece are all more convenient，Seal pressure and come from the elastic force of butterfly spring between valve base piece and the connector being fixedly connected and adapter sleeve 28，Owing to the corrugated tube between connector and lower core body is scalable，Valve rod can drive lower core body to move up in stem shaft，Sealing pair is made to have Guan Bi and open two states，Medium is cut off and opens two states by corresponding valve；Lower core body has balance pipe, makes valve form balance type structure；Owing to connector is by butterfly spring, by adapter sleeve, outer many borehole jacks, interior many borehole jacks and valve base piece are pressed on valve body mesopore, form the telescoping structure with pore channels, have telescoping valve functional character, so it uses as telescoping valve.
The present invention will be described to be above adopting preferred embodiment, not limitation of the invention, in the novel existing known technology of middle employing of this reality, conversion etc. that the present invention is made in its concept, and does not interfere with protection scope of the present invention.: as described in corrugated tube waveform can adopt U-shaped, C shape, Ω shape, V-arrangement, stairstepping etc., pattern can adopt with reinforcing ring structure etc., these are all the known technologies of corrugated tube；Described valve rod with the connection of lower core body can be weld, securing member connection etc.；Described corrugated tube and the connection of connector, lower core body can be welding, rolling laminated connection, bonding etc., and these are all the known technologies of connected mode；The described balance pipe shape on lower core body can be circular as required, triangle；The sealing surface of described sealing pair can adopt the conical surface, plane, sphere and curved surface etc., and these are all to present invention conversion etc. in its concept；Do not affect the protection domain of bellows spool pipe valve shape valve of the present invention.
Claims (9)
1. a bellows spool pipe valve shape valve, including: coupled, by connector, corrugated tube and lower core body, the bellows combination type spool formed, valve body, valve gap, fastening assembly, valve rod, upper gasket seal, it is characterised in that: the spool in this pipe valve shape valve is coupled, by connector, corrugated tube, lower core body, the bellows combination type spool formed；Valve rod couples with lower core body, and lower core body has a sealing surface, and it is when valve closing, forms sealing pair with the sealing surface on valve seat；Valve rod couples with lower core body in the assembly formed, and is provided with and medium can be allowed by the lower core body passage in stem shaft upwards both sides.
2. bellows spool pipe valve shape valve according to claim 1, it is characterised in that: the lower core body of the combination type spool of described valve has balance pipe.
3. bellows spool pipe valve shape valve according to claim 1, it is characterised in that: connector can with valve cover chamber, it is also possible to couple with forming static seal between valve gap and valve body two pieces.
4. the bellows spool pipe valve shape valve according to claim 1 or 3, it is characterized in that: the connector of the combination type spool of described valve and valve cover chamber or couple with the static seal formed between valve gap and valve body two pieces, following static seal can be adopted to be fixedly connected mode:
A, connector form static seal with valve gap alone and are fixedly connected；
B, connector form static seal between each part be fixedly connected with valve gap and valve bodies alone；
C, connector with fairlead or/and form static seal between each part be fixedly connected with valve gap together with sleeve；
D, connector with fairlead or/and form static seal between each part be fixedly connected with valve gap and valve body together with sleeve.
5. bellows spool pipe valve shape valve according to claim 1, it is characterised in that: the valve rod of described valve couples with lower core body, and connecting mode can adopt and be fixedly connected, it would however also be possible to employ relatively turnable connection.
6. bellows spool pipe valve shape valve according to claim 1, it is characterised in that: described valve, adopt valve stem seal corrugated tube, stop medium to leak from valve rod, the valve with corrugated tube packing seal form can be formed.
7. bellows spool pipe valve shape valve according to claim 1, it is characterised in that: in the connector of described valve and valve pocket, the medium channel between mesopore is unlimited, has stop valve functional character, uses as stop valve.
8. bellows spool pipe valve shape valve according to claim 1, it is characterised in that: between medium channel between mesopore, there is telescoping structure in the connector of described valve and valve pocket, there is telescoping valve functional character, use as telescoping valve；The formation of telescoping structure generally has following several ways: a, connector itself are with the extended body regulating window, and it constitutes telescoping structure with mesopore outer edge part overlap joint in valve body；B, connector have specially with valve with regulate window and with in valve body mesopore outward flange overlap joint sleeve part coordinates, composition telescoping structure；C, connector are inherently with the telescoping structure regulating window；What d, connector had specially with valve coordinates with the sleeve part regulating window and partial sleeves cavity, constitutes telescoping structure；E, connector and valve base piece overlap joint constitute telescoping structure, connector or have adjustment window on valve base piece；F, connector constitute the telescoping structure with adjustment window together with other part.
9. the bellows spool pipe valve shape valve according to claim 1 or 8, it is characterised in that: the adjustment window of described valve, it is possible to be positioned on connector or be positioned on valve base piece, it is also possible to being positioned on sleeve, or being made up of the part forming telescoping structure.
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| CN201410732381.2A CN105736706B (en) | 2014-12-06 | 2014-12-06 | Bellows spool pipe valve shape valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410732381.2A CN105736706B (en) | 2014-12-06 | 2014-12-06 | Bellows spool pipe valve shape valve |
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| CN105736706A true CN105736706A (en) | 2016-07-06 |
| CN105736706B CN105736706B (en) | 2018-07-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH581284A5 (en) * | 1973-10-31 | 1976-10-29 | Klein Schanzlin & Becker Ag | Fluid flow regulating valve - has compressed elastic governor sleeve sliding in bush |
| CN2226176Y (en) * | 1995-05-30 | 1996-05-01 | 大连贵友机电有限公司 | Low-temp. bellows valve for ship |
| CN104405908A (en) * | 2014-08-30 | 2015-03-11 | 申宝光 | Valve core component of corrugated pipe type double-base sleeve valve |
| CN204267749U (en) * | 2014-12-06 | 2015-04-15 | 申宝光 | Bellows spool pipe valve shape valve |
-
2014
- 2014-12-06 CN CN201410732381.2A patent/CN105736706B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH581284A5 (en) * | 1973-10-31 | 1976-10-29 | Klein Schanzlin & Becker Ag | Fluid flow regulating valve - has compressed elastic governor sleeve sliding in bush |
| CN2226176Y (en) * | 1995-05-30 | 1996-05-01 | 大连贵友机电有限公司 | Low-temp. bellows valve for ship |
| CN104405908A (en) * | 2014-08-30 | 2015-03-11 | 申宝光 | Valve core component of corrugated pipe type double-base sleeve valve |
| CN204267749U (en) * | 2014-12-06 | 2015-04-15 | 申宝光 | Bellows spool pipe valve shape valve |
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| CN105736706B (en) | 2018-07-10 |
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Effective date of registration: 20191017 Address after: Room 1802 and 2302, No. 9, Xingqing Road, Beilin District, Xi'an City, Shaanxi Province Patentee after: Shaanxi Aerospace Valve Technology Group Co., Ltd. Address before: 136001, Siping City, Jilin Province East flat East Street No. three, 901, North building, 5 units, building 501, room 5 Patentee before: Shen Bao Guang |