CN103672158A - Cryogenic butterfly valve with composite heat dissipation disc valve cover - Google Patents

Cryogenic butterfly valve with composite heat dissipation disc valve cover Download PDF

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Publication number
CN103672158A
CN103672158A CN201310694272.1A CN201310694272A CN103672158A CN 103672158 A CN103672158 A CN 103672158A CN 201310694272 A CN201310694272 A CN 201310694272A CN 103672158 A CN103672158 A CN 103672158A
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China
Prior art keywords
valve
butterfly
valve gap
winchester disk
heat dissipation
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CN201310694272.1A
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CN103672158B (en
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阳学明
章文忠
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HUBEI TAIHE PETROCHEMICAL EQUIPMENT Co Ltd
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HUBEI TAIHE PETROCHEMICAL EQUIPMENT Co Ltd
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    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222—Shaping of the valve member
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2268—Sealing means for the axis of rotation
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • 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
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre 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
    • F16K49/00—Means in or on valves for heating or cooling

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Lift Valve (AREA)

Abstract

Disclosed is a cryogenic butterfly valve with a composite heat dissipation disc valve cover. The cryogenic butterfly valve comprises a valve body. A butterfly plate assembly and an axial floating type valve seat assembly are arranged in the valve body and form a sealing structure. A valve rod penetrates through the butterfly plate assembly to be fixed to the butterfly plate assembly, penetrates through an upper shaft hole and a lower shaft hole of the valve body, then penetrates through the valve cover upwards, stretches outwards in cooperation with a graphite packing layer in a stuffing box on the upper portion of the valve cover, and stretches upwards until penetrating through a support and entering an actuator assembly above the support. The actuator assembly does 90-deree rotary motion to drive the butterfly assembly to move. Due to the adoption of the thinking of improving temperature conductivity lambda, increasing the convection heat dissipation area A of the valve cover and the surrounding environment and the convection heat dissipation temperature difference delta T of the valve cover and the surrounding environment, a composite heat dissipation disc structure composed of a single large-diameter heat dissipation disc and a neck multi-ring small-diameter heat dissipation disc outside the valve cover is designed, and an excellent heat dissipation effect is achieved.

Description

A kind of compound loose Winchester disk valve gap deep cooling butterfly valve
Technical field
The present invention relates to a kind of deep cooling butterfly valve, relate in particular on a kind of compound loose Winchester disk valve gap deep cooling and fill formula butterfly valve.
Background technique
In-150 ℃ to more than-250 ℃ deep cooling working condition system manufacturing processs of modern LNG Liquefied natural gas, liquid oxygen, liquid hydrogen, liquid helium etc. are controlled automatically, on deep cooling, fill formula butterfly valve to play a very important role, and can on-line maintenance.In this process control,, according to real-time data-signal, regulate and the circulation parameter that opens and closes medium.Between the sensitivity of its control action, reliability, valve rod and filler, sealing and life-span are vital.Because the valve stem part hypomere filling on deep cooling in formula butterfly valve valve gap is connected with butterfly plate, epimere stretched out with flexible cooperation of graphite packing in sealed letter, be connected with final controlling element again, in valve gap, the deep cooling medium in space communicates with valve body, the structural type of valve gap must have good loose temp effect, guarantee valve rod with cooperation place, graphite packing bottom temperature more than 0 ℃, in order to avoid the airborne moisture of Ling Gu and occur to freeze and bond just can be guaranteed adjusting and the reliable effect of switching motion of valve.So the loose warm nature of valve gap can fine or not directly have influence on the safe and reliable and economic benefit of system.Yet in existing technology, on deep cooling, filling formula butterfly valve valve gap is to adopt the loose Winchester disk of monolithic major diameter and lengthening valve gap napex to fall apart warm, but single loose Winchester disk radius strengthens, more outer enclosing, the cold temperature that deep cooling medium basal plane transmits and the temperature difference of environment convection current are less, that is to say, have reduced average temperature conductivity, loose warm condition is abundant not, weak effect; Must be by lengthening valve gap napex, but the cold temperature of lengthening napex peripheral wall and environment fall apart, the area of warm convection current is little, loose warm condition is also good not, also can reduce the intensity of valve gap, increases cost simultaneously.The loose insufficient meeting of warm condition causes valve rod and the filler place of the being slidably matched bonding of freezing, the large or akinesia of switching motion moment, and the hard thing that freezes scratches valve rod and filler, and deep cooling butterfly valve is short working life, and replacing is frequently.
In addition, the wearing and tearing of butterfly valve internals sealing pair need to change after losing sealing function, and because replaced part processing dimension is always different from original paper, after changing, seal pressure is difficult to regulate and puts in place, there will be seal pressure inadequate, even can not seal.Can cause leakage phenomenon.
Summary of the invention
The invention provides a kind of compound loose Winchester disk valve gap deep cooling butterfly valve, it adopts and improves warm conductivity λ, increase valve gap and surrounding environment to wandering warm area A, with the thinking of surrounding environment to wandering tri-parameters of warm temperature difference Δ T, the compound loose Winchester disk structural type that the valve gap outside of designing is comprised of the loose Winchester disk of monolithic major diameter and the loose Winchester disk of napex multi-turn minor diameter, reached fabulous loose temp effect, guaranteed that valve rod and cooperation place, filler bottom temperature are more than 0 ℃, stopped the airborne moisture of Ling Gu and the bonding that occurs to freeze, guarantee valve opening and closing reliable in action, with the safe and reliable of system and increase economic efficiency.
A kind of compound loose Winchester disk valve gap deep cooling butterfly valve, it comprises valve body, in valve body, be provided with butterfly plate assembly and axial float formula valve component, butterfly plate assembly and axial float formula valve component form sealing configuration, valve rod passes butterfly plate assembly and fixes with butterfly plate assembly, and through the upper and lower axis hole of valve body, upwards again through valve gap, coordinate and stretch out with graphite packing layer in valve gap top seal letter, extend up through the actuator assembly that support enters support top, actuator assembly is done 90 ° of motions of revolution and is driven the motion of butterfly plate assembly always; Described graphite packing top is provided with filler pressing sleeve, and filler pressing sleeve is provided with Gland, and Gland and valve gap are connected; Described valve gap outside is provided with the loose Winchester disk of monolithic major diameter and napex is provided with the compound loose Winchester disk that the loose Winchester disk of multi-turn minor diameter forms.
Above-mentioned butterfly plate assembly comprises from having and to a left side, sets gradually butterfly plate, composite multi-layer sealing ring, trim ring, interior elastic washer and hex screw, composite multi-layer sealing ring has radial elastic fine adjustment function when closed with valve seat, makes sealing pair keep tight sealing effect.
Above-mentioned valve component comprises valve seat, seal ring, Adjusting ring, Steel Cable Baffle Ring, hexagon head head eye bolt, stop steel wire, limiting stopper, ears packing ring, hex head bolt for hole, and the hex head bolt on Adjusting ring can regulate sealing pair border each point seal pressure; Limiting stopper, ears packing ring, hex head bolt can be to the spacing adjusting of the amount of movement of valve seat updrift side.
Between above-mentioned Gland and valve gap, by stud bolt and hexagon nut, be connected, between hexagon nut and Gland, be provided with belleville spring.
Above-mentioned valve body is provided with maintenance window, and maintenance window is provided with between scuttle, scuttle and valve body and is connected by stud bolt, hexagon nut, and between is established the first spiral wound gasket.
Between above-mentioned valve rod and actuator assembly, by flat key, be connected described final controlling element or manually or by electronic, pneumatic.
The upper lower shaft hole meta of above-mentioned valve body is respectively equipped with Upper shaft sleeve and Lower shaft sleeve in valve rod outside.
Between above-mentioned valve body and valve gap, by hexagon nut and stud, be connected, and between is provided with the second spiral wound gasket.
Between above-mentioned graphite packing layer and filler pressing sleeve, be provided with filler packing ring, between filler pressing sleeve and valve gap, be provided with O RunddichtringO.
The present invention has obtained following technique effect:
1, the present invention owing to adopt improving warm conductivity λ, increase valve gap and surrounding environment to wandering warm area A, with the thinking of surrounding environment to tri-parameters of warm temperature difference Δ T of scattering, the compound loose Winchester disk structural type that the valve gap outside of designing is comprised of the loose Winchester disk of monolithic major diameter and the loose Winchester disk of napex multi-turn minor diameter, reached fabulous loose temp effect, guaranteed that valve rod and cooperation place, filler bottom temperature are more than 0 ℃, stopped the airborne moisture of Ling Gu and the bonding that occurs to freeze, guarantee valve opening and closing reliable in action, and system safe and reliable and increasing economic efficiency;
2, the present invention is due to loose warm sufficient condition, and the hard thing of having stopped to freeze scratches valve rod and filler, makes it to keep sealability running life cycle long, thereby has extended the working life of deep cooling gate valve, has reduced working condition system maintenance cost;
3, the present invention is due to loose warm sufficient condition, and lengthening valve gap napex length that needn't be excessive, has increased valve gap and valve bulk strength, has reduced the manufacture cost of valve simultaneously.
4. the present invention is owing to adopting butterfly plate assembly demountable structure form, and convenient for maintaining is changed Sealing.
5. the present invention, owing to adopting butterfly plate assembly to be provided with composite multi-layer sealing ring, has radial elastic fine adjustment function when closed with valve seat, makes sealing pair keep tight sealing effect.
6. the present invention, owing to adopting valve seat axial float structural type, can bear reverse instantaneous water hammering blow pressure butterfly plate and be subjected to displacement auto-compensation adjustment, makes valve seat and composite multi-layer sealing ring bidirectional bearing keep sealing to fit tightly.
7. the present invention is owing to adopting valve component demountable structure form, and valve seat and composite multi-layer sealing ring processing dimension adaptation remaining are wide, and interchangeability is strong, no matter is that I&M can realize convenient adjusting.
8. the present invention, owing to adopting valve body to be provided with maintenance window and scuttle, can conveniently install and on-line maintenance.
9. the present invention cover sealed letter top and is provided with Gland with there being the graphite packing wherein of belleville spring elastic compression in fastening piece owing to adopting, and makes it to coordinate with valve rod Flexible Sliding and because temperature variation generation relaxes, does not leak.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1.
In figure, P represents main flow direction.
Embodiment
Shown in accompanying drawing 1-2, a kind of compound loose Winchester disk valve gap deep cooling butterfly valve, it comprises valve body 1, in valve body, be provided with butterfly plate assembly and axial float formula valve component, butterfly plate assembly and axial float formula valve component form sealing configuration, valve rod 26 passes butterfly plate assembly and fixes with butterfly plate assembly, and upper through valve body, lower shaft hole, upwards again through valve gap 23, coordinate and stretch out with graphite packing layer 41 in valve gap top seal letter, extend up through the actuator assembly 33 that support 29 enters support top always, actuator assembly is done 90 ° of motions of revolution and is driven the motion of butterfly plate assembly, described graphite packing top is provided with filler pressing sleeve 38, and filler pressing sleeve is provided with Gland 37, and Gland and valve gap are connected, described valve gap outside is provided with the loose Winchester disk 24 of monolithic major diameter and is provided with napex the compound loose Winchester disk that the loose Winchester disk 25 of multi-turn minor diameter forms.
Preferably, described butterfly plate assembly comprises from having and to a left side, sets gradually butterfly plate 10, composite multi-layer sealing ring 11, trim ring 18, interior elastic washer 17 and hex screw 16, composite multi-layer sealing ring has radial elastic fine adjustment function when closed with valve seat, makes sealing pair keep tight sealing effect.Described valve component comprises valve seat 8, seal ring 9, Adjusting ring 12, Steel Cable Baffle Ring 13, hexagon head head eye bolt 14, stop steel wire 15, limiting stopper 50, ears packing ring 49, hex head bolt 48 for hole, and the hex head bolt on Adjusting ring can regulate sealing pair border each point seal pressure; Limiting stopper, ears packing ring, hex head bolt can be to the spacing adjusting of the amount of movement of valve seat updrift side.Between described Gland and valve gap, by stud bolt 34 and hexagon nut 35, be connected, between hexagon nut and Gland, be provided with belleville spring 36.Described valve body is provided with maintenance window, and maintenance window is provided with between scuttle 19, scuttle and valve body and is connected by stud bolt 20, hexagon nut 21, and between is established the first spiral wound gasket 22.Between described valve rod and actuator assembly, by flat key 32, be connected described final controlling element or manually or by electronic, pneumatic.The upper lower shaft hole meta of described valve body is respectively equipped with Upper shaft sleeve 45 and Lower shaft sleeve 5 in valve rod outside.Between described valve body and valve gap, by hexagon nut 42 and stud 43, be connected, and between is provided with the second spiral wound gasket 44.Between described graphite packing layer and filler pressing sleeve, be provided with filler packing ring 40, between filler pressing sleeve and valve gap, be provided with O RunddichtringO 39.The application's seal ring can be selected PCFE seal ring.
According between fluid and solid to wandering temperature amount fundamental equation being:
The loose temperature amount Q=temperature conductivity λ * warm area A of faling apart * with the poor Δ T of ambient temperature.
Claimant from improving warm conductivity λ, to increase the structural type that valve gap and surrounding environment design valve gap to wandering warm area A, with surrounding environment to the thinking of tri-parameters of warm temperature difference Δ T of scattering as follows:
The valve gap outside that fills formula butterfly valve on this deep cooling is provided with the compound loose Winchester disk structural type that the loose Winchester disk of monolithic major diameter and napex are provided with the loose Winchester disk composition of multi-turn minor diameter, except the loose temperature of the loose Winchester disk leading portion of monolithic major diameter, valve gap napex has increased again the loose Winchester disk of multi-turn minor diameter, rational setting space, be convenient to the thin little loose Winchester disk thickness size of processing, and rational napex wall thickness dimension, thereby improved average temperature conductivity λ, strengthened the cold temperature of napex periphery and surrounding environment to wandering warm area A simultaneously; Because the loose Winchester disk radius of minor diameter is little, the cold temperature passing over close to deep cooling medium basal plane, cold temperature in the best and surrounding environment are to wandering warm temperature difference Δ T, to lower and on adjacent loose Winchester disk between the temperature difference have nonlinear gradient clearly to successively decrease, loose temp effect is splendid, guarantees that valve rod and cooperation place, filler bottom temperature, at 0 ℃, the bonding of freezing does not occur above.Also the length that has shortened valve gap, has reduced cost simultaneously.
In addition, the structural type that is provided with adjustable sealing specific pressure in valve body is as follows: valve body upper end is provided with the scuttle of maintenance use, after valve seat, be provided with Adjusting ring, there is the hex head bolt of a plurality of adjusting use to realize convenient adjusting, guarantee that border seal pressure adjusting everywhere puts in place, valve seat and composite multi-layer sealing ring processing dimension adapt to that remaining is wide, and interchangeability is strong, are no matter that I&M dismounting is changed part and can conveniently be realized.And valve seat is axial float structure, can keep sealing by bidirectional bearing.Stopped the leakage hidden danger that structure imperfection causes.

Claims (9)

1. a compound loose Winchester disk valve gap deep cooling butterfly valve, it is characterized in that: it comprises valve body (1), in valve body, be provided with butterfly plate assembly and axial float formula valve component, butterfly plate assembly and axial float formula valve component form sealing configuration, valve rod (26) passes butterfly plate assembly and fixes with butterfly plate assembly, and upper through valve body, lower shaft hole, upwards again through valve gap (23), coordinate and stretch out with graphite packing layer (41) in valve gap top seal letter, extend up through the actuator assembly (33) that support (29) enters support top always, actuator assembly is done 90 ° of motions of revolution and is driven the motion of butterfly plate assembly, described graphite packing top is provided with filler pressing sleeve (38), and filler pressing sleeve is provided with Gland (37), and Gland and valve gap are connected, described valve gap outside is provided with the loose Winchester disk (24) of monolithic major diameter and is provided with napex the compound loose Winchester disk that the loose Winchester disk (25) of multi-turn minor diameter forms.
2. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula butterfly valve, it is characterized in that: described butterfly plate assembly comprises from having and to a left side, sets gradually butterfly plate (10), composite multi-layer sealing ring (11), trim ring (18), interior elastic washer (17) and hex screw (16), composite multi-layer sealing ring has radial elastic fine adjustment function when closed with valve seat, makes sealing pair keep tight sealing effect.
3. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula butterfly valve, it is characterized in that: described valve component comprises valve seat (8), seal ring (9), Adjusting ring (12), Steel Cable Baffle Ring (13), hexagon head head eye bolt (14), stop steel wire (15), limiting stopper (50), ears packing ring (49), hex head bolt (48) for hole, and the hex head bolt on Adjusting ring can regulate sealing pair border each point seal pressure; Limiting stopper, ears packing ring, hex head bolt can be to the spacing adjusting of the amount of movement of valve seat updrift side.
4. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula butterfly valve, it is characterized in that: between described Gland and valve gap, by stud bolt (34) and hexagon nut (35), be connected, between hexagon nut and Gland, be provided with belleville spring (36).
5. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula butterfly valve, it is characterized in that: described valve body is provided with maintenance window, maintenance window is provided with between scuttle (19), scuttle and valve body and is connected by stud bolt (20), hexagon nut (21), and between is established the first spiral wound gasket (22).
6. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula butterfly valve, it is characterized in that: between described valve rod and actuator assembly, by flat key (32), be connected described final controlling element or manually or by electronic, pneumatic.
7. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula butterfly valve, it is characterized in that: the upper lower shaft hole meta of described valve body is respectively equipped with Upper shaft sleeve (45) and Lower shaft sleeve (5) in valve rod outside.
8. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula butterfly valve, it is characterized in that: between described valve body and valve gap, by hexagon nut (42) and stud (43), be connected, and between is provided with the second spiral wound gasket (44).
9. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula butterfly valve, it is characterized in that: between described graphite packing layer and filler pressing sleeve, be provided with filler packing ring (40), between filler pressing sleeve and valve gap, be provided with O RunddichtringO (39).
CN201310694272.1A 2013-12-18 2013-12-18 A kind of compound is fallen apart Winchester disk valve gap deep cooling butterfly valve Active CN103672158B (en)

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CN201310694272.1A CN103672158B (en) 2013-12-18 2013-12-18 A kind of compound is fallen apart Winchester disk valve gap deep cooling butterfly valve

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CN103672158A true CN103672158A (en) 2014-03-26
CN103672158B CN103672158B (en) 2015-11-18

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DE102019132765A1 (en) * 2019-12-03 2021-06-10 Leusch GmbH Industrial valve shut-off unit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0727242A (en) * 1993-07-09 1995-01-27 Kitz Corp Butterfly valve
CN1514154A (en) * 2002-12-18 2004-07-21 Snecma Low temperature valve device
CN202048221U (en) * 2011-05-19 2011-11-23 宣达实业集团浙江耐森蝶阀有限公司 Bidirectional pressure bearing metal sealing butterfly valve having movable valve seat
CN202629105U (en) * 2012-06-08 2012-12-26 圣博莱阀门有限公司 Ultralow temperature top-mounted hard sealing butterfly valve
CN203239947U (en) * 2012-11-13 2013-10-16 大众阀门集团有限公司 Large-diameter on-line maintenance butterfly valve used for cryogenic working condition
CN203628013U (en) * 2013-12-18 2014-06-04 湖北泰和石化设备有限公司 Copious cooling butterfly valve with composite cooling disc valve cover

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0727242A (en) * 1993-07-09 1995-01-27 Kitz Corp Butterfly valve
CN1514154A (en) * 2002-12-18 2004-07-21 Snecma Low temperature valve device
CN202048221U (en) * 2011-05-19 2011-11-23 宣达实业集团浙江耐森蝶阀有限公司 Bidirectional pressure bearing metal sealing butterfly valve having movable valve seat
CN202629105U (en) * 2012-06-08 2012-12-26 圣博莱阀门有限公司 Ultralow temperature top-mounted hard sealing butterfly valve
CN203239947U (en) * 2012-11-13 2013-10-16 大众阀门集团有限公司 Large-diameter on-line maintenance butterfly valve used for cryogenic working condition
CN203628013U (en) * 2013-12-18 2014-06-04 湖北泰和石化设备有限公司 Copious cooling butterfly valve with composite cooling disc valve cover

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