CN203628013U - Copious cooling butterfly valve with composite cooling disc valve cover - Google Patents
Copious cooling butterfly valve with composite cooling disc valve cover Download PDFInfo
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- CN203628013U CN203628013U CN201320834477.0U CN201320834477U CN203628013U CN 203628013 U CN203628013 U CN 203628013U CN 201320834477 U CN201320834477 U CN 201320834477U CN 203628013 U CN203628013 U CN 203628013U
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- valve
- butterfly
- valve gap
- winchester disk
- butterfly plate
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Abstract
A copious cooling butterfly valve with a composite cooling disc valve cover comprises a valve body. A butterfly plate assembly and an axial floating type valve seat assembly are arranged in the valve body, the butterfly plate assembly and the axial floating type valve seat assembly form a seal structure, a valve rod penetrates through the butterfly plate and is fixed to the butterfly plate assembly, the valve rod penetrates through an upper shaft hole and a lower shaft hole of the valve body, penetrates upwards through the valve cover, is matched with a graphite packing layer in a seal case at the upper portion of the valve cover to extend out and extends upwards all the way to penetrate through a support to enter an actuator assembly above the support, and the actuator assembly conducts rotary 90-degree movement to drive the butterfly plate assembly to move. According to the copious cooling butterfly valve with the composite cooling disc valve cover, due to the fact that the concept of increasing the three parameters of the high temperature conducting rate lambda, the convection cooling area A of the valve cover and the surrounding and the convection cooling temperature difference delta T of the valve cover and the surrounding is adopted for designing the composite cooling disc structure form composed of a single large diameter cooling disc outside the cover plate and a plurality of circles of small diameter cooling disc at the neck portion, a wonderful cooling effect is achieved.
Description
Technical field
The utility model relates to a kind of deep cooling butterfly valve, relates in particular on a kind of compound loose Winchester disk valve gap deep cooling and fills 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, be according to real-time data-signal, regulate and the circulation parameter that opens and closes medium.Between sensitivity, reliability, valve rod and the filler of its control action, 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, the airborne moisture of Ling Gu and occur to freeze and bond guarantees that cooperation place, valve rod and graphite packing bottom temperature is more than 0 ℃, in order to avoid 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.But 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 utility model 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 made up of the loose Winchester disk of monolithic major diameter and the loose Winchester disk of napex multi-turn minor diameter, reach fabulous loose temp effect, guarantee that valve rod and cooperation place, filler bottom temperature are more than 0 ℃, stop 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 the 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 sets gradually butterfly plate, composite multi-layer sealing ring, trim ring, interior elastic washer and hex screw to a left side, 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, be connected by stud bolt and hexagon nut, 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, be connected by flat key, described final controlling element is manual, electronic or pneumatic actuator.
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, be connected by hexagon nut and stud, 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 utility model has been obtained following technique effect:
1, the utility model improves warm conductivity λ owing to adopting, 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 made up of the loose Winchester disk of monolithic major diameter and the loose Winchester disk of napex multi-turn minor diameter, reach fabulous loose temp effect, guarantee that valve rod and cooperation place, filler bottom temperature are more than 0 ℃, stop 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,
2, the utility model 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 utility model 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 utility model is owing to adopting butterfly plate assembly demountable structure form, and convenient for maintaining is changed Sealing.
5. the utility model, 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 utility model, 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 utility model 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 utility model, owing to adopting valve body to be provided with maintenance window and scuttle, can conveniently be installed and on-line maintenance.
9. the utility model 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 does not leak because temperature variation generation relaxes.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
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 the 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 sets gradually butterfly plate 10, composite multi-layer sealing ring 11, trim ring 18, interior elastic washer 17 and hex screw 16 to a left side, 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, be connected by stud bolt 34 and hexagon nut 35, 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, be connected by flat key 32, described final controlling element is manual, electronic or pneumatic actuator.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, be connected by hexagon nut 42 and stud 43, 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
We 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 loose Winchester disk of monolithic major diameter and is provided with napex the compound loose Winchester disk structural type that the loose Winchester disk of multi-turn minor diameter forms, 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, reasonably setting space, be convenient to the thin little loose Winchester disk thickness size of processing, and rational napex wall thickness dimension, thereby improve 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 multiple 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.Stop 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 the 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. compound loose Winchester disk valve gap deep cooling butterfly valve according to claim 1, it is characterized in that: described butterfly plate assembly comprises from having and sets gradually butterfly plate (10), composite multi-layer sealing ring (11), trim ring (18), interior elastic washer (17) and hex screw (16) to a left side, composite multi-layer sealing ring has radial elastic fine adjustment function when closed with valve seat, makes sealing pair keep tight sealing effect.
3. compound loose Winchester disk valve gap deep cooling butterfly valve according to claim 1, 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. compound loose Winchester disk valve gap deep cooling butterfly valve according to claim 1, it is characterized in that: between described Gland and valve gap, be connected by stud bolt (34) and hexagon nut (35), between hexagon nut and Gland, be provided with belleville spring (36).
5. compound loose Winchester disk valve gap deep cooling butterfly valve according to claim 1, 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. compound loose Winchester disk valve gap deep cooling butterfly valve according to claim 1, is characterized in that: between described valve rod and actuator assembly, be connected by flat key (32), described final controlling element is manual, electronic or pneumatic actuator.
7. compound loose Winchester disk valve gap deep cooling butterfly valve according to claim 1, 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. compound loose Winchester disk valve gap deep cooling butterfly valve according to claim 1, is characterized in that: between described valve body and valve gap, be connected by hexagon nut (42) and stud (43), and between is provided with the second spiral wound gasket (44).
9. compound loose Winchester disk valve gap deep cooling butterfly valve according to claim 1, is characterized in that: between described graphite packing layer and filler pressing sleeve, be provided with filler packing ring (40), be provided with O RunddichtringO (39) between filler pressing sleeve and valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834477.0U CN203628013U (en) | 2013-12-18 | 2013-12-18 | Copious cooling butterfly valve with composite cooling disc valve cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834477.0U CN203628013U (en) | 2013-12-18 | 2013-12-18 | Copious cooling butterfly valve with composite cooling disc valve cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203628013U true CN203628013U (en) | 2014-06-04 |
Family
ID=50814491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320834477.0U Withdrawn - After Issue CN203628013U (en) | 2013-12-18 | 2013-12-18 | Copious cooling butterfly valve with composite cooling disc valve cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203628013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672158A (en) * | 2013-12-18 | 2014-03-26 | 湖北泰和石化设备有限公司 | Cryogenic butterfly valve with composite heat dissipation disc valve cover |
| CN108869772A (en) * | 2018-08-07 | 2018-11-23 | 陕西瑞莱自控设备有限公司 | A kind of dedicated hard sealing lock hopper moushroom valve of coal chemical industry |
-
2013
- 2013-12-18 CN CN201320834477.0U patent/CN203628013U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672158A (en) * | 2013-12-18 | 2014-03-26 | 湖北泰和石化设备有限公司 | Cryogenic butterfly valve with composite heat dissipation disc valve cover |
| CN103672158B (en) * | 2013-12-18 | 2015-11-18 | 湖北泰和石化设备有限公司 | A kind of compound is fallen apart Winchester disk valve gap deep cooling butterfly valve |
| CN108869772A (en) * | 2018-08-07 | 2018-11-23 | 陕西瑞莱自控设备有限公司 | A kind of dedicated hard sealing lock hopper moushroom valve of coal chemical industry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |