CN203594821U - Top-mounted fireproof copious-cooling ball valve with composite heat-dissipation disc valve deck - Google Patents
Top-mounted fireproof copious-cooling ball valve with composite heat-dissipation disc valve deck Download PDFInfo
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- CN203594821U CN203594821U CN201320834476.6U CN201320834476U CN203594821U CN 203594821 U CN203594821 U CN 203594821U CN 201320834476 U CN201320834476 U CN 201320834476U CN 203594821 U CN203594821 U CN 203594821U
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- valve
- winchester disk
- ball
- loose
- valve rod
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Abstract
The utility model provides a top-mounted fireproof copious-cooling ball valve with a composite heat-dissipation disc valve deck. The top-mounted fireproof copious-cooling ball valve comprises a valve body. A ball core is arranged in the middle of the valve body. The upper end of the valve body is connected with an upper valve rod. The upper segment of the valve rod extends out in cooperation with graphite packing in a sealing case on the upper portion of the valve deck and is connected with an actuator component on a valve deck support. 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 graphite packing are in sliding fit does not freeze or bond at the temperature above 0 DEG C, opening and closing of the valve are reliable, it is completely eradiated that the valve rod and the graphite packing are scratched by hard freezing objects, and the overall strength of the valve deck and the overall strength of the valve are enhanced. The structure of multiple fire protection and an electrostatic grounding closed circuit enables fire hazards caused by various factors to be completely eradiated and stops fires of pipelines from spreading.
Description
Technical field
The utility model relates to a kind of deep cooling ball valve, is specifically related to fill formula fire-proof ball valve on a kind of compound loose Winchester disk valve gap deep cooling.
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 fire-proof ball valve and play a very important role.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 control action, sealing and life-span are vital.Because the valve stem part hypomere filling on deep cooling in formula fire-proof ball valve valve gap is connected with ball core body, 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 fire-proof ball 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 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 ball valve is short working life, and replacing is frequently.
Ball valve in the time of standard-sized sheet and full cut-off, the medium in the cavity between valve body and valve core, Yin Wendu rising volume can expand, pressure can raise.Conventional art is to adopt valve seat front and back pressure difference to push valve seat insert open to realize relieving pressure function.But, mixing up sealing force and in operating mode process, be subject to factor in the majority can change and may strengthen even dispatch from the factory, valve cavity internal pressure may be for a long time in ultrahigh pressure state like this.In addition, the direction of releasing of the upstream and downstream in the time of full cut-off can not be controlled, and can cause leakage phenomenon.Also have arranging of fire proof seal circle abundant not, have potential safety hazard.
Summary of the invention
The utility model object is to provide on a kind of compound loose Winchester disk valve gap and fills formula fire-proof ball valve.
The purpose of this utility model is achieved in that on a kind of compound loose Winchester disk valve gap deep cooling and fills formula fire-proof ball valve, fire-proof ball valve comprises valve body, valve body top is provided with valve gap, valve body middle part is provided with ball core body, the both sides of ball core body are provided with valve seat, and the upper end of ball core body is connected with upper valve rod, and lower end connects lower valve rod upper valve rod epimere and matches with the graphite packing in sealed letter on valve gap, and through support, be connected with final controlling element; Described valve gap outside is provided with the loose Winchester disk of monolithic major diameter, is also provided with the loose Winchester disk of multi-turn minor diameter on the loose Winchester disk of monolithic major diameter, and the loose Winchester disk of monolithic major diameter and the loose Winchester disk of multi-turn minor diameter form a compound loose Winchester disk structure; Valve seat is provided with hard sealing surface and low temperature resistant valve seat insert, the hard soft double seal pair of hard sealing surface and low temperature resistant valve seat insert and ball core body composition; Termination section between valve seat and valve body is established by back-up ring, the first carbon seal ring and single acting piston and is sealed the triple fire proof seals that form; Intermediate section is provided with the triple fire proof seals that are made up of spring seat, one-way cylinder envelope and the second carbon seal ring; Upper valve rod 36 is provided with the first steel ball 22 and the first cylindrical compression spring, forms the electrostatic grounding path between ball core body, upper valve rod and valve body.
Described final controlling element is manual, electronic or pneumatic type final controlling element, drives upper valve rod so that ball core body is done 90 ° of rotation motions.
Described valve rod is through graphite packing, filler cushion cover and Gland in valve gap and sealed letter; Filler pressing sleeve inside and outside circle is respectively provided with O RunddichtringO, and forms elastic hold-down mechanism by stud bolt, hexagon nut, belleville spring.
Valve seat is provided with spring seat, the second cylindrical compression spring is placed in spring seat, and the second cylindrical compression spring matches with spring pad, and spring pad is provided with adjusting nut outward, for regulating the elastic packing specific pressure arranging between sealing pair.
On the valve seat of upstream, be provided with the one-way valve being formed by tapered sleeve, the second steel ball and the first cylindrical compression spring.
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.
On the compound loose Winchester disk valve gap deep cooling that the utility model provides, fill formula fire-proof ball valve and 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, owing to adopting the structural type of multiple fire prevention and perfect electrostatic grounding path, can be stopped the disaster hidden-trouble that various factors causes, and can intercept spreading of pipeline fire.
5. the utility model is owing to adopting upstream valve seat to be provided with one-way valve pressure relief form, and valve body, no longer in ultrahigh pressure state, can controlled discharge direction be upstream simultaneously all the time, the leakage phenomenon while having got rid of contract fully.
6. the utility model, owing to adopting the structural type of hard soft double seal pair, has good fire proof seal performance.
7. the utility model, owing to adopting elastic packing specific pressure regulation structure form, in the operating mode of temperature variation, can keep suitable seal pressure.
8. 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.
In figure, P represents import upstream, P1 representative outlet downstream.
Embodiment
Structure of the present utility model is as shown in Figure 1: shown in accompanying drawing, on a kind of compound loose Winchester disk valve gap deep cooling, fill formula fire-proof ball valve, it is characterized in that: fire-proof ball valve comprises valve body 1, valve body 1 top is provided with valve gap 33, and valve body middle part is provided with ball core body 21, the both sides of ball core body 21 are provided with valve seat 16, the upper end of ball core body 21 is connected with upper valve rod 36, and lower end connects lower valve rod 10, and upper valve rod 36 epimeres match with the graphite packing 11 in sealed letter on valve gap 33, and through support 32, be connected with final controlling element 31; Described valve gap 33 outsides are provided with the loose Winchester disk 34 of monolithic major diameter, are also provided with the loose Winchester disk 35 of multi-turn minor diameter on the loose Winchester disk 34 of monolithic major diameter, and the loose Winchester disk 34 of monolithic major diameter and the loose Winchester disk 35 of multi-turn minor diameter form a compound loose Winchester disk structure; Valve seat 16 is provided with hard sealing surface and low temperature resistant valve seat insert 17, the hard soft double seal pair that hard sealing surface and low temperature resistant valve seat insert 17 and ball core body 21 form; Termination section between valve seat 16 and valve body 1 is established by back-up ring 3, the first carbon seal ring 4 and the PCFE single acting piston envelope 5 triple fire proof seals that form; Intermediate section is provided with the triple fire proof seals that are made up of spring seat 18, PCFE one-way cylinder envelope 6 and the second carbon seal ring 7; Upper valve rod 36 is provided with the first steel ball 22 and the first cylindrical compression spring 25, forms the electrostatic grounding path between ball core body 21, upper valve rod 36 and valve body 1.
The loose Winchester disk 34 of monolithic major diameter with the ratio of the loose temperature area of the loose Winchester disk 35 of individual pen minor diameter more than 10:1.
Described final controlling element 31 is manual, electronic or pneumatic type final controlling element, drives upper valve rod 36 so that 21 rotation motions of ball core body.
Described valve rod is through graphite packing 11, filler cushion cover 13 and Gland 27 in valve gap 33 and sealed letter; Filler pressing sleeve inside and outside circle is respectively provided with O RunddichtringO 12, and forms elastic hold-down mechanism by stud bolt 30, hexagon nut 29, belleville spring 28.
On the valve seat 16 of upstream, be provided with the one-way valve being formed by tapered sleeve 26, the second steel ball 24 and the first cylindrical compression spring 25.
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 that fills formula fire-proof ball 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 of valve cavity pressure releasing is as follows: on the valve seat of upstream, be provided with the one-way valve being made up of tapered sleeve, steel ball, cylindrical compression spring, reasonably select the precompression of cylindrical compression spring, just effective control valve body cavity relieving pressure value is guaranteed upstream direction to release simultaneously.
The utility model has also increased multiple fire proof seal and perfect electrostatic grounding access structure form, has guaranteed timely smooth and easy the emitting of static, can stop the disaster hidden-trouble that various factors causes.
Claims (6)
1. on a compound loose Winchester disk valve gap deep cooling, fill formula fire-proof ball valve, it is characterized in that: fire-proof ball valve comprises valve body (1), valve body (1) top is provided with valve gap (33), valve body middle part is provided with ball core body (21), the both sides of ball core body (21) are provided with valve seat (16), the upper end of ball core body (21) is connected with upper valve rod (36), lower end connects lower valve rod (10), upper valve rod (36) epimere matches with the graphite packing (11) in sealed letter on valve gap (33), and through support (32), be connected with final controlling element (31); Described valve gap (33) outside is provided with the loose Winchester disk (34) of monolithic major diameter, monolithic major diameter is fallen apart and is also provided with the loose Winchester disk (35) of multi-turn minor diameter on Winchester disk (34), monolithic major diameter Winchester disk (34) and multi-turn minor diameter Winchester disk (35) the formation one compound loose Winchester disk structure of faling apart of fall apart; Valve seat (16) is provided with hard sealing surface and low temperature resistant valve seat insert (17), the hard soft double seal pair of hard sealing surface and low temperature resistant valve seat insert (17) and ball core body (21) composition; Termination section between valve seat (16) and valve body (2) is established the triple fire proof seals that are made up of back-up ring (3), axle-steel silk gear catch spring (2), the first carbon seal ring (4) and single acting piston envelope (5); Intermediate section is provided with the triple fire proof seals that are made up of spring seat (18), one-way cylinder envelope (6) and the second carbon seal ring (7); Upper valve rod (36) is provided with the first steel ball (22) and the first cylindrical compression spring (23), forms the electrostatic grounding path between ball core body (21), upper valve rod (36) and valve body (1).
2. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula fire-proof ball valve, it is characterized in that: described final controlling element (31) is manual, electronic or pneumatic type final controlling element, drive upper valve rod (36) so that ball core body (21) rotation motion.
3. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula fire-proof ball valve, it is characterized in that: described valve rod is through graphite packing (11), filler cushion cover (13) and Gland (27) in valve gap (33) and sealed letter; Filler pressing sleeve inside and outside circle is respectively provided with O RunddichtringO (12), and forms elastic hold-down mechanism by stud bolt (30), hexagon nut (29), belleville spring (28).
4. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula fire-proof ball valve, it is characterized in that: valve seat (16) is provided with spring seat (18), the second cylindrical compression spring (19) is placed in spring seat (18), the second cylindrical compression spring (19) matches with spring pad (20), spring pad (20) is outer is provided with adjusting nut (15), for regulating the elastic packing specific pressure arranging between sealing pair.
5. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula fire-proof ball valve, it is characterized in that: on the valve seat (16) of upstream, be provided with the one-way valve being formed by tapered sleeve (26), the second steel ball (24) and the first cylindrical compression spring (25).
6. on compound loose Winchester disk valve gap deep cooling according to claim 1, fill formula fire-proof ball valve, it is characterized in that: monolithic major diameter is fallen apart the ratio of loose temperature area of the loose Winchester disk (35) of Winchester disk (34) and individual pen minor diameter more than 10:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834476.6U CN203594821U (en) | 2013-12-18 | 2013-12-18 | Top-mounted fireproof copious-cooling ball valve with composite heat-dissipation disc valve deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834476.6U CN203594821U (en) | 2013-12-18 | 2013-12-18 | Top-mounted fireproof copious-cooling ball valve with composite heat-dissipation disc valve deck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594821U true CN203594821U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320834476.6U Withdrawn - After Issue CN203594821U (en) | 2013-12-18 | 2013-12-18 | Top-mounted fireproof copious-cooling ball valve with composite heat-dissipation disc valve deck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672011A (en) * | 2013-12-18 | 2014-03-26 | 湖北泰和石化设备有限公司 | Cryogenic top entry type fireproof ball valve with composite heat dissipation disc valve cover |
| CN105090609A (en) * | 2015-09-12 | 2015-11-25 | 泰州市龙瑞阀业有限公司 | Novel ball valve |
-
2013
- 2013-12-18 CN CN201320834476.6U patent/CN203594821U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672011A (en) * | 2013-12-18 | 2014-03-26 | 湖北泰和石化设备有限公司 | Cryogenic top entry type fireproof ball valve with composite heat dissipation disc valve cover |
| CN103672011B (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 on Winchester disk valve gap deep cooling and is filled formula fire-proof ball valve |
| CN105090609A (en) * | 2015-09-12 | 2015-11-25 | 泰州市龙瑞阀业有限公司 | Novel ball valve |
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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 |