CN203571062U - Cryogenic regulating valve provided with valve cover with compound cooling disks - Google Patents
Cryogenic regulating valve provided with valve cover with compound cooling disks Download PDFInfo
- Publication number
- CN203571062U CN203571062U CN201320751121.0U CN201320751121U CN203571062U CN 203571062 U CN203571062 U CN 203571062U CN 201320751121 U CN201320751121 U CN 201320751121U CN 203571062 U CN203571062 U CN 203571062U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve gap
- winchester disk
- deep cooling
- gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 25
- 150000001875 compounds Chemical class 0.000 title claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 title abstract 3
- 210000004907 gland Anatomy 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 24
- 238000003825 pressing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 9
- 238000007710 freezing Methods 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 3
- 238000006748 scratching Methods 0.000 abstract 1
- 230000002393 scratching effect Effects 0.000 abstract 1
- 239000002826 coolant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model discloses a cryogenic regulating valve provided with a valve cover with compound cooling disks. The cryogenic regulating valve comprises a main valve and the valve cover; the middle of the body of the main valve is provided with a valve element; a sealing valve seat is arranged below the valve element; the periphery of the valve element is provided with a sleeve cage; the upper side of the valve element is connected with a valve rod; the upper section of the valve rod and a gland packing in a sealing box on the upper part of the valve cover are matched for extension and are connected with an actuator component; the actuator drives the valve element to vertically linearly move. The outside of the valve cover is provided with a compound cooling disk structural form of a single large-diameter cooling disk and a plurality of small-diameter cooling disks on the neck, the mean temperature conductivity is improved, a convection cooling area and temperature difference between cool temperature at the periphery of the neck and the ambient environment are increased, the cooling effect is good, the temperature of a sliding fit position of the valve rod and the packing is ensured to be higher than 0 DEG C so as not to generate freezing adhesion, the opening and closing actions of the valve are reliable, frozen hard objects are prevented from scratching the valve rod and the packing, the integral strength of the valve cover and the valve is improved, the cost is reduced and the economic benefit and the reliability are improved.
Description
Technical field
The utility model relates to a kind of deep cooling modulating valve, relates in particular to a kind of compound loose Winchester disk valve gap deep cooling modulating 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, deep cooling modulating valve plays a very important role.In this process control,, according to real-time data-signal, open and close and regulate the circulation parameter of medium.Between the sensitivity of control action, reliability, valve rod and filler, sealing and life-span are vital.Because the valve stem part hypomere in deep cooling modulating valve valve gap is connected with spool, epimere stretches out with final controlling element and is connected with the stuffing box packing cooperation in sealed letter, 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 that valve rod and cooperation place, filler bottom temperature are more than 0 ℃, in order to avoid the airborne moisture of Ling Gu and the bonding that occurs to freeze just can be guaranteed valve opening and closing and regulate reliable in action effect.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, deep cooling modulating valve valve gap is adopt the loose Winchester disk of monolithic major diameter and lengthen valve gap napex, 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 it is little with the area of the loose warm convection current of environment to lengthen the cold temperature of napex peripheral wall, the warm condition of faling apart is also good not, and the oversize meeting of valve rod causes vertical stressed strut buckling, and seal leakage 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 being slidably matched to freeze and bonds, and loses and regulates action or insensitive, and the hard thing that freezes scratches valve rod and filler, and deep cooling modulating valve is short working life, and replacing is frequent.
Summary of the invention
The utility model provides a kind of compound loose Winchester disk valve gap deep cooling modulating valve, valve gap outside is provided with the loose Winchester disk of monolithic major diameter and napex is provided with the compound loose Winchester disk structural type that the loose Winchester disk of multi-turn minor diameter forms, thereby improved average temperature conductivity, the cold temperature of napex periphery and surrounding environment have been strengthened to wandering warm area and the temperature difference simultaneously, loose temp effect is splendid, guarantee that valve rod and the filler place of being slidably matched temperature, at 0 ℃, the bonding of freezing does not occur above, guarantee valve opening and closing and regulate reliable in action, the hard thing of having stopped to freeze scratches valve rod and filler, valve gap and valve bulk strength have been increased, reduced cost, increase economic efficiency and security of system reliable.
A kind of compound loose Winchester disk valve gap deep cooling modulating valve, it comprises valve body, valve body middle part is provided with seal valve seat, on valve seat top, be provided with lining cage, valve gap is set on valve body, valve gap and valve body are by bolt, nut fastener is fixed, and lining cage is compressed therebetween, spool is set in the middle of lining cage, spool upper end connects valve rod, valve rod is connected with actuator assembly through valve gap, between valve rod upper end and valve gap, be provided with successively spring, packing ring and filler, filler upper end is provided with filler pressing, filler pressing is provided with Gland, Gland is connected on actuator assembly by stud bolt and hexagon nut, valve gap and actuator assembly are fixed by round nut fastening piece, valve gap outside is provided with the loose Winchester disk of monolithic major diameter and the loose Winchester disk of a plurality of minor diameter.
Above-mentioned bonnet lower is provided with guide sleeve and circlip for hole, and valve rod extends upward through guide sleeve and circlip for hole.
Between above-mentioned valve body and seal valve seat, be provided with sealing gasket.
Above-mentioned filler pressing inside and outside circle is respectively equipped with O RunddichtringO, and top inner circle is provided with rubber dust-proof seal ring.
Between above-mentioned valve body, valve gap and lining cage, be provided with sealed loop-pad.
The utility model has been obtained following technique effect:
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 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 filler are slidably matched place's temperature more than 0 ℃, stopped the airborne moisture of Ling Gu and the bonding that occurs to freeze, guarantee valve opening and closing and regulate 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 modulating valve, has reduced working condition system maintenance cost;
3, the utility model is due to loose warm sufficient condition, and lengthening valve gap napex and shaft length that needn't be excessive have been avoided the stress of valve rod in strut buckling and caused the leakage of spool and valve base sealing pair.For the endurance of valve seal performance has been created condition.
4, 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.
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.
Embodiment
Shown in accompanying drawing 1, a kind of compound loose Winchester disk valve gap deep cooling modulating valve, it comprises valve body 1, valve body middle part is provided with seal valve seat 3, on valve seat top, be provided with lining cage 5, valve gap 9 is set on valve body, valve gap and valve body are by bolt 8, nut 7 fastening pieces are fixed, and lining cage is compressed therebetween, spool 4 is set in the middle of lining cage, spool upper end connects valve rod 10, valve rod is connected with actuator assembly 22 through valve gap, between valve rod upper end and valve gap, be provided with successively spring 11, packing ring 12 and filler 13, filler upper end is provided with filler pressing 16, filler pressing is provided with Gland 20, Gland is connected on actuator assembly by stud bolt 18 and hexagon nut 19, valve gap and actuator assembly are fixed by round nut 21 fastening pieces, valve gap outside is provided with the loose Winchester disk 24 of monolithic major diameter and the loose Winchester disk 23 of a plurality of minor diameters.
Preferably, described bonnet lower is provided with guide sleeve 25 and circlip for hole 26, and valve rod extends upward through guide sleeve and circlip for hole.Between described valve body and seal valve seat, be provided with sealing gasket 2.Described filler pressing inside and outside circle is respectively equipped with O RunddichtringO 14,15, and top inner circle is provided with rubber dust-proof seal ring 17.Between described valve seat and lining cage, be provided with seal ring 6.
According between fluid and solid to wandering temperature amount fundamental equation being: loose temperature amount Q=temperature conductivity λ * loose poor Δ T of warm area A * 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 of this deep cooling modulating valve is provided with the loose Winchester disk of monolithic major diameter and napex is provided with the compound loose Winchester disk structural type that the loose Winchester disk of multi-turn minor diameter forms, except having 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.Effectively solved lacking of former conventional art.
Claims (5)
1. a compound loose Winchester disk valve gap deep cooling modulating valve, it is characterized in that: it comprises valve body (1), valve body middle part is provided with seal valve seat (3), on valve seat top, be provided with lining cage (5), valve gap (9) is set on valve body, valve gap and valve body are by bolt (8), nut (7) fastening piece is fixed, and lining cage is compressed therebetween, spool (4) is set in the middle of lining cage, spool upper end connects valve rod (10), valve rod is connected with actuator assembly (22) through valve gap, between valve rod upper end and valve gap, be provided with successively spring (11), packing ring (12) and filler (13), filler upper end is provided with filler pressing (16), filler pressing is provided with Gland (20), Gland is connected on actuator assembly by stud bolt (18) and hexagon nut (19), valve gap and actuator assembly are fixed by round nut (21) fastening piece, valve gap outside is provided with the loose Winchester disk (24) of monolithic major diameter and the loose Winchester disk (23) of a plurality of minor diameters.
2. compound loose Winchester disk valve gap deep cooling modulating valve according to claim 1, is characterized in that: described bonnet lower is provided with guide sleeve (25) and circlip for hole (26), and valve rod extends upward through guide sleeve and circlip for hole.
3. compound loose Winchester disk valve gap deep cooling modulating valve according to claim 1 and 2, is characterized in that: between described valve body and seal valve seat, be provided with sealing gasket (2).
4. compound loose Winchester disk valve gap deep cooling modulating valve according to claim 1 and 2, is characterized in that: described filler pressing inside and outside circle is respectively equipped with O RunddichtringO (14,15), and top inner circle is provided with rubber dust-proof seal ring (17).
5. compound loose Winchester disk valve gap deep cooling modulating valve according to claim 1 and 2, is characterized in that: between described valve seat and lining cage, be provided with seal ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751121.0U CN203571062U (en) | 2013-11-26 | 2013-11-26 | Cryogenic regulating valve provided with valve cover with compound cooling disks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751121.0U CN203571062U (en) | 2013-11-26 | 2013-11-26 | Cryogenic regulating valve provided with valve cover with compound cooling disks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203571062U true CN203571062U (en) | 2014-04-30 |
Family
ID=50538794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320751121.0U Expired - Lifetime CN203571062U (en) | 2013-11-26 | 2013-11-26 | Cryogenic regulating valve provided with valve cover with compound cooling disks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203571062U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443767A (en) * | 2014-08-06 | 2016-03-30 | 湖北泰和石化设备有限公司 | Deep refrigeration regulating valve with piston pressure self-sealing and positioning functions |
| CN106151538A (en) * | 2016-08-31 | 2016-11-23 | 浙江智鹏自控阀门有限公司 | Fluorine-lined bellows regulating valve |
-
2013
- 2013-11-26 CN CN201320751121.0U patent/CN203571062U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443767A (en) * | 2014-08-06 | 2016-03-30 | 湖北泰和石化设备有限公司 | Deep refrigeration regulating valve with piston pressure self-sealing and positioning functions |
| CN105443767B (en) * | 2014-08-06 | 2018-10-09 | 湖北泰和石化设备有限公司 | A kind of deep cooling regulating valve with piston pressure self sealss and positioning |
| CN106151538A (en) * | 2016-08-31 | 2016-11-23 | 浙江智鹏自控阀门有限公司 | Fluorine-lined bellows regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |