CN203594807U - Copious-cooling gate valve with composite heat-dissipation disc valve deck - Google Patents
Copious-cooling gate valve with composite heat-dissipation disc valve deck Download PDFInfo
- Publication number
- CN203594807U CN203594807U CN201320834443.1U CN201320834443U CN203594807U CN 203594807 U CN203594807 U CN 203594807U CN 201320834443 U CN201320834443 U CN 201320834443U CN 203594807 U CN203594807 U CN 203594807U
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- valve
- winchester disk
- loose
- valve gap
- cooling gate
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Abstract
The utility model provides a copious-cooling gate valve with a composite heat-dissipation disc valve deck. The copious-cooling gate valve comprises a valve body. A valve clack is arranged in a skewed slot in the middle of the valve body. A valve rod is connected to the upper end of the valve clack. The upper segment of the valve rod penetrates through sealing packing in a sealing case on the upper portion of the valve deck, is matched with a T-shaped nut on a support and is connected with an actuator assembly. An actuator drives the valve clack to move upwards and downwards. A composite heat-dissipation disc structure is formed by arranging a large-diameter heat-dissipation disc outside the valve deck and arranging multiple circles of small-diameter heat-dissipation discs on the neck of the valve deck, as a result, the average temperature conduction rate is increased, the convection heat-dissipation area between the low temperature of the periphery of the neck and the surrounding and the temperature difference between the neck and the surrounding are increased, the heat-dissipation effect is good, it is guaranteed that the part where the valve rod and the packing are in sliding fit does not freeze or bond at the temperature above 0 DEG C, reliable opening and closing of the valve are guaranteed, it is completely eradiated that the valve rod and the packing are scratched by hard freezing objects, the overall strength of the valve deck and the overall strength of the valve are enhanced, cost is lowered, economic benefits and safety and reliability of a system are improved, and defects of the traditional technology are overcome.
Description
Technical field
The utility model relates to a kind of deep cooling gate valve, relates in particular to a kind of compound loose Winchester disk valve gap deep cooling gate 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 gate valve plays a very important role.In this process control,, according to real-time data-signal, open and close the circulation parameter of medium.Between sensitivity, reliability, valve rod and the filler of control action, sealing and life-span are vital.Because the valve stem part hypomere in deep cooling gate valve cover is connected with flap, epimere stretched out with flexible cooperation of stuffing box packing in sealed letter, coordinate with the nut on support, be connected with final controlling element again, in valve gap, the deep cooling medium in space communicates with valve body, and the structural type of valve gap must have good loose temp effect, guarantees that valve rod and cooperation place, filler bottom temperature are more than 0 ℃, in order to avoid the airborne moisture of Ling Gu and occur freeze bonding, just can guarantee valve opening and closing 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.But in existing technology, deep cooling gate valve cover 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 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 gate valve is short working life, and replacing is frequently.
Summary of the invention
It is good that the utility model object is to provide a kind of loose temp effect, the compound loose Winchester disk valve gap deep cooling gate valve of long service life.
The purpose of this utility model is achieved in that a kind of compound loose Winchester disk valve gap deep cooling gate valve, comprise valve body, in the skewed slot at valve body middle part, be provided with flap, the upper end of flap is connected with valve rod, valve rod epimere is through the stuffing box packing in valve gap top seal letter, match with the T-shaped nut on support, then be connected with final controlling element; Be provided with the loose Winchester disk of monolithic major diameter in valve gap outside, the loose Winchester disk of multi-turn minor diameter at the loose Winchester disk of monolithic major diameter and top forms a compound loose Winchester disk structure.
Described final controlling element is a handwheel, or by electronic for power makes the rotation motion of valve rod screw mandrel, drive flap move up and down.
Described T-shaped nut and handwheel are fixed by flat key, round nut.
Described valve rod is respectively provided with O RunddichtringO through stuffing box packing, filler packing ring and filler pressing, filler pressing inside and outside circle in valve gap and sealed letter, and filler pressing is fixed by Gland.
On the skewed slot of valve body, be welded with cemented carbide sealing surface layer; On inclined-plane, flap two sides, be welded with cemented carbide sealing surface layer.
The loose Winchester disk of monolithic major diameter with the ratio of the loose temperature area of the loose Winchester disk of individual pen minor diameter more than 10:1.
The compound loose Winchester disk valve gap deep cooling gate valve that the utility model provides, obtain 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 and shaft length that needn't be excessive have been avoided the stress of valve rod in strut buckling and caused the leakage of flap 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, a kind of compound loose Winchester disk valve gap deep cooling gate valve object is achieved through the following technical solutions: a kind of compound loose Winchester disk valve gap deep cooling gate valve, comprise valve body 1, in the skewed slot at valve body 1 middle part, be provided with flap 2, the upper end of flap 2 is connected with valve rod 3, valve rod 3 epimeres, through the stuffing box packing 8 in valve gap 7 top seal letters, match with the T-shaped nut 19 on support 17, then are connected with final controlling element; Be provided with the loose Winchester disk 28 of monolithic major diameter in valve gap 7 outsides, the loose Winchester disk 28 of monolithic major diameter forms a compound loose Winchester disk structure with the loose Winchester disk 27 of multi-turn minor diameter at top;
Described final controlling element is a handwheel 23, or by electronic for power makes the rotation motion of valve rod screw mandrel, drive flap move up and down.
Described T-shaped nut 19 is fixed by flat key 21, round nut 22 with handwheel 23.
Described valve rod 3 is respectively provided with O RunddichtringO 25 through stuffing box packing 8, filler packing ring 26 and filler pressing 24, filler pressing 24 inside and outside circles in valve gap 7 and sealed letter, and filler pressing 24 is fixed by Gland 13.
On the skewed slot of valve body 1, be welded with cemented carbide sealing surface layer; On flap 2 inclined-planes, two sides, be welded with cemented carbide sealing surface layer.
The loose Winchester disk 28 of monolithic major diameter with the ratio of the loose temperature area of the loose Winchester disk 27 of individual pen minor diameter more than 10:1.
Design principle of the present utility model is as follows: 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 of this deep cooling gate 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 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 improved average temperature conductivity λ, the cold temperature that has simultaneously strengthened napex periphery with surrounding environment to the warm area A of scattering; 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 solve the shortcoming of former conventional art.
When the utility model is made, in the surface groove seal valve seat at valve body 1 middle part, offer flap 2, valve body 1 is installed valve gap 7 above, fixed by bolt 4, nut 5 fastening pieces, and seal ring 6 is compressed therebetween, flap 2 upper ends connect valve rod 3, valve rod is through stuffing box packing 8, filler packing ring 26, filler pressing 24 in valve gap 7 and sealed letter, coordinate with the T-shaped nut 19 on support 17 again, T-shaped nut is connected with handwheel 23, be fixed by round nut 22 fastening pieces,, be provided with flat key 21, bearing gland 20, bearing 18 therebetween.Support 17 is fastening fixing by stud bolt 11, hexagon nut 12 with valve gap 7.Described Gland 13 comprises a bearing pin 9, cotter pin 10, swing bolt 14, pad 15, connects with valve gap by hexagon nut 16.
Claims (6)
1. a compound loose Winchester disk valve gap deep cooling gate valve, comprise valve body (1), it is characterized in that: in the skewed slot at valve body (1) middle part, be provided with flap (2), the upper end of flap (2) is connected with valve rod (3), valve rod (3) epimere is through the stuffing box packing (8) in valve gap (7) top seal letter, match with the T-shaped nut (19) on support (17), then be connected with final controlling element; Be provided with the loose Winchester disk (28) of monolithic major diameter in valve gap (7) outside, the monolithic major diameter Winchester disk (28) that fall apart forms a compound loose Winchester disk structure with the loose Winchester disk (27) of multi-turn minor diameter at top.
2. compound loose Winchester disk valve gap deep cooling gate valve according to claim 1, is characterized in that: described final controlling element is a handwheel (23), or by electronic for power makes the rotation motion of valve rod screw mandrel, drive flap move up and down.
3. compound loose Winchester disk valve gap deep cooling gate valve according to claim 1, is characterized in that: described T-shaped nut (19) is fixed by flat key (21), round nut (22) with handwheel (23).
4. compound loose Winchester disk valve gap deep cooling gate valve according to claim 1, it is characterized in that: described valve rod (3) is respectively provided with O RunddichtringO (25) through stuffing box packing (8), filler packing ring (26) and filler pressing (24), filler pressing (24) inside and outside circle in valve gap (7) and sealed letter, filler pressing (24) is fixing by Gland (13).
5. compound loose Winchester disk valve gap deep cooling gate valve according to claim 1, is characterized in that: on the skewed slot of valve body (1), be welded with cemented carbide sealing surface layer; On flap (2) inclined-plane, two sides, be welded with cemented carbide sealing surface layer.
6. compound loose Winchester disk valve gap deep cooling gate valve according to claim 1, is characterized in that: monolithic major diameter is fallen apart the ratio of loose temperature area of the loose Winchester disk (27) of Winchester disk (28) and individual pen minor diameter more than 10:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834443.1U CN203594807U (en) | 2013-12-18 | 2013-12-18 | Copious-cooling gate valve with composite heat-dissipation disc valve deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834443.1U CN203594807U (en) | 2013-12-18 | 2013-12-18 | Copious-cooling gate valve with composite heat-dissipation disc valve deck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594807U true CN203594807U (en) | 2014-05-14 |
Family
ID=50675699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320834443.1U Withdrawn - After Issue CN203594807U (en) | 2013-12-18 | 2013-12-18 | Copious-cooling gate valve with composite heat-dissipation disc valve deck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671992A (en) * | 2013-12-18 | 2014-03-26 | 湖北泰和石化设备有限公司 | Cryogenic gate valve with composite heat dissipation disc valve cover |
-
2013
- 2013-12-18 CN CN201320834443.1U patent/CN203594807U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671992A (en) * | 2013-12-18 | 2014-03-26 | 湖北泰和石化设备有限公司 | Cryogenic gate valve with composite heat dissipation disc valve cover |
| CN103671992B (en) * | 2013-12-18 | 2015-11-18 | 湖北泰和石化设备有限公司 | A kind of cryogenic gate valve with composite heat dissipation disc valve cover |
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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: 20140514 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |