CN203239947U - Large-diameter on-line maintenance butterfly valve used for cryogenic working condition - Google Patents
Large-diameter on-line maintenance butterfly valve used for cryogenic working condition Download PDFInfo
- Publication number
- CN203239947U CN203239947U CN 201220598253 CN201220598253U CN203239947U CN 203239947 U CN203239947 U CN 203239947U CN 201220598253 CN201220598253 CN 201220598253 CN 201220598253 U CN201220598253 U CN 201220598253U CN 203239947 U CN203239947 U CN 203239947U
- Authority
- CN
- China
- Prior art keywords
- valve
- neck
- butterfly
- line maintenance
- sealing
- 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 - Fee Related
Links
Images
Abstract
The utility model discloses a large-diameter on-line maintenance butterfly valve used for a cryogenic working condition. The butterfly valve comprises a valve actuator, a lengthened valve neck and a cold-keeping disc. The valve actuator is arranged on the top of the lengthened valve neck. The cold-keeping disc is arranged in the middle of the lengthened valve neck. The bottom of the lengthened valve neck is connected with a valve main shell. Meanwhile, the valve actuator is connected with a butterfly plate through a valve rod. The valve rod penetrates through the lengthened valve neck, and the butterfly plate is arranged in the valve main shell through a two-way sealing structure. The large-diameter on-line maintenance butterfly valve has the advantages that the size is small, the weight is light, investment is saved, the on-line maintenance function is achieved, media are cut off with zero leakage, and flow control adjustment is good; the cutting-off function, the adjustment function and a rapid opening and closing function are achieved, in different process systems, the multiple functions of the valve can be achieved only through configuration of different drive control mechanisms, and construction cost is reduced.
Description
Technical field
The utility model relates to a kind of butterfly valve, but particularly a kind of heavy caliber on-line maintenance deep cooling operating mode butterfly valve.
Background technique
Along with the large scale development of liquefaction plant, as the valve on the pipeline also in the development of high pressure, heavy caliber.Butterfly valve because can heavy caliber, pressure is high, sealing is reliable, the saving space, the valve volume is little, lightweight, low-cost and 90 ° of revolution switches are easy to the advantages such as automation control, more and more be applied in the middle of the large-scale LNG liquefaction plant.Traditional butterfly valve, in case damage, the light then front and back working medium of emptying damage valve place pipeline will be keeped in repair under its dismounting, heavy then stopping production whole device is dismantled, no matter which kind of situation all will cause huge economic loss and loss in efficiency.
Summary of the invention
For the shortcoming of existing traditional butterfly valve, but the utility model provides a kind of novel heavy caliber on-line maintenance deep cooling operating mode butterfly valve.
To achieve these goals, the utility model institute Adopts measure
But a kind of heavy caliber on-line maintenance deep cooling operating mode butterfly valve, comprise valve actuator, lengthen valve neck, cold insulation dish, described valve actuator is arranged at and lengthens valve neck top, lengthens valve neck medium position and is provided with the cold insulation dish, lengthens valve neck bottom and is connected with the valve main casing; Simultaneously, valve actuator is connected with butterfly plate by valve rod, and valve rod passes and lengthens the valve neck, and butterfly plate is arranged in the valve main casing by Bidirectional seal structure; In addition, valve main casing one side is provided with the on-bne repair structure, comprises access opening and access cover at maintenance structure; Be provided with the valve base sealing regulating mechanism in the access opening;
Described valve base sealing regulating mechanism comprises bolt, double-screw bolt, nut, adjustment piece, Sealing, end cap; End cap arranged outside bolt, opposite side is provided with double-screw bolt; The double-screw bolt end is provided with nut; Simultaneously, nut contacts with adjustment piece one side, and the adjustment piece opposite side contacts with Sealing;
Also comprise the two way sealed valve seat, described two way sealed valve seat comprises sealing inserts, metallic packing ring, valve seat pressure ring, and the valve seat pressure ring is arranged on the valve seat, is provided with metallic packing ring on the valve seat pressure ring, be provided with the sealing inserts in the metallic packing ring, the sealing inserts matches by the interference mode with butterfly plate.
The beneficial effects of the utility model: body is gently reduced investment outlay in a small amount; Realize the on-line maintenance function, and media implementation " zero leakage " is cut off, good flow control is regulated; Have cut-out, adjusting, fast opening and closing function, in the different process system, only need the different driving control mechanism of configuration can realize multi-purpose valve, for engineering cost reduces cost.
Description of drawings
Fig. 1, the utility model is faced cross-sectional view.
Fig. 2, the left TV structure schematic diagram of the utility model.
Fig. 3, the utility model valve base sealing regulating mechanism schematic diagram.
Fig. 4, the utility model two way sealed is burnt the pre-structure schematic diagram.
Fig. 5, structural representation after the utility model two way sealed is burnt.
Embodiment
But a kind of heavy caliber on-line maintenance deep cooling operating mode butterfly valve, as shown in Figure 1 and Figure 2, comprise valve actuator 1, lengthen valve neck 2, cold insulation dish 3, described valve actuator 1 is arranged at and lengthens valve neck 2 tops, lengthen valve neck 2 medium positions and be provided with cold insulation dish 3, lengthen valve neck 2 bottoms and be connected with valve main casing 4; Simultaneously, valve actuator 1 is connected with butterfly plate 5 by valve rod 6, and valve rod 6 passes and lengthens valve neck 2, and butterfly plate 5 is arranged in the valve main casing 4 by Bidirectional seal structure; In addition, valve main casing 4 one sides are provided with on-bne repair structure 7, and on-bne repair structure 7 comprises access opening and access cover; Be provided with valve base sealing regulating mechanism 8 in the access opening.In the actual implementation process of patent, as shown in Figure 3, valve base sealing regulating mechanism 8 comprises bolt 9, double-screw bolt 10, nut 11, adjustment piece 12, Sealing 13, end cap 14; End cap 14 arranged outside bolts 9, opposite side is provided with double-screw bolt 10; Double-screw bolt 10 ends are provided with nut 11; Simultaneously, nut 11 contacts with adjustment piece 12 1 sides, and adjustment piece 12 opposite sides contact with Sealing 13.As shown in Figure 4, the two way sealed valve seat comprises sealing inserts 15, metallic packing ring 16, valve seat pressure ring 17, valve seat pressure ring 17 is arranged on the valve seat, be provided with metallic packing ring 16 on the valve seat pressure ring 17, be provided with sealing inserts 15 in the metallic packing ring 16, sealing inserts 15 matches by the interference mode with butterfly plate 5; In implementation process, by the two way sealed valve seat of particular design, when valve closing, can realize the lasting sealing of butterfly plate 5 and metallic packing ring 16, realize low pressure zero leakage ability, as shown in Figure 4; When valve is subjected to the reverse media masterpiece time spent, medium power puts on the bottom of metallic packing ring 16, will further strengthen the sealability of butterfly plate 5 and valve seat; Do the time spent when being subjected to the medium positive force, butterfly plate 5 is pushed to metallic packing ring 16, because butterfly plate 5 and metallic packing ring 16 surface of contact are special pressurization surface, and seal ring is sealed the restriction of inserts 15, excessive movement can not occur, so butterfly plate 5 more moves to metallic packing ring 16, sealability will be more excellent; Simultaneously, this two way sealed valve seat has fire-proof function, as shown in Figure 5, has the butterfly valve of fire-resistant valve seat, and when fire occured, first road macromolecular material sealing inserts 15 will be burnt, and as the metallic packing ring 16 that second seals, can effectively turn-off medium.In the patent practical work process, at first, as shown in Figure 1 and Figure 2, under the drive of the valve actuator 1 with open and close two bit functions, valve is steadily realized the open and close action reliably.Secondly, have the moving lower of regulatory function valve actuator 1, valve can be realized excellent fluid throttling capacity in the control loop that system arranges, and can be in whole control range, the regulatory function that steady, agonic executive system is set.In addition, under the valve actuator 1 with quick acting ability drives, valve can be in the control loop of default, realize the action of fast open valve, pass valve or acceleration switching valve, according to system requirements, the quick acting time is adjustable, can realize the action of valve from the complete shut-down position to the standard-sized sheet position in 0.05 second the soonest, and the vibrations that guarantee valve in quick acting are minimum, and each parts of valve occur without any fault.At last, owing to being provided with on-bne repair structure 7, can realize the on-bne repair function, as shown in Figure 1 and Figure 2, remove the access cover of line maintenance structure 7 after, need not remove valve and can realize adjusting to valve base sealing regulating mechanism 8.When valve during in the work of the operating mode of temperature wide fluctuations, the fastening piece of valve base sealing regulating mechanism 8 is inevitably owing to expanding with heat and contract with cold, form leakage point, realize Sealing 13 is regulated by adjusting bolt 9, this function can realize valve base sealing regulating mechanism 8 is adjusted.And work as valve because unpredictable factor causes valve base sealing regulating mechanism 8 to damage, also can realize the ability that valve is changed valve base sealing regulating mechanism 8 online by this function.In addition, this valve also has the following advantages: the antistatic design aspect, adopt the design in integral type conducting loop, and so that may producing static, valve all obtains the most effective reliable derivation, prevent because the potential safety hazard that electrostatic accumulation produces; High-quality foundry goods aspect, valve body and valve plate adopt rational casting technique and harsh non-destructive inspection control, so that the foundry goods of each deck valve door can both reach optimum quality; The bearing use adopts the long-life self oiling bearing, and valve can be realized the long-life circulation under unlubricated condition and operate reliably using; The automatically cleaning aspect, special valve base sealing can make valve use in graininess, cohesiveencess medium, and needn't worry because the seals accident that media accumulation and bonding cause; Body is gently reduced investment outlay in a small amount: the structural advantage of valve itself, so that impayable cost advantage is arranged when the heavy caliber high pressure operating mode, this significantly reduces the cost of valve in the plant investment for the owner.
Those skilled in the art's simple change and replacement all are within the protection domain of the present utility model.
Claims (3)
1. but heavy caliber on-line maintenance deep cooling operating mode butterfly valve, comprise valve actuator (1), lengthen valve neck (2), cold insulation dish (3), it is characterized in that, described valve actuator (1) is arranged at and lengthens valve neck (2) top, lengthen valve neck (2) medium position and be provided with cold insulation dish (3), lengthen valve neck (2) bottom and be connected with valve main casing (4); Simultaneously, valve actuator (1) is connected with butterfly plate (5) by valve rod (6), and valve rod (6) passes and lengthens valve neck (2), and butterfly plate (5) is arranged in the valve main casing (4) by Bidirectional seal structure; In addition, valve main casing (4) one sides are provided with on-bne repair structure (7), comprise access opening and access cover at maintenance structure (7); Be provided with valve base sealing regulating mechanism (8) in the access opening.
2. but described a kind of heavy caliber on-line maintenance deep cooling operating mode butterfly valve according to claim 1, it is characterized in that, described valve base sealing regulating mechanism (8) comprises bolt (9), double-screw bolt (10), nut (11), adjustment piece (12), Sealing (13), end cap (14); End cap (14) arranged outside bolt (9), opposite side are provided with double-screw bolt (10); Double-screw bolt (10) end is provided with nut (11); Simultaneously, nut (11) contacts with adjustment piece (12) one sides, and adjustment piece (12) opposite side contacts with Sealing (13).
3. but described a kind of heavy caliber on-line maintenance deep cooling operating mode butterfly valve according to claim 1, it is characterized in that, also comprise the two way sealed valve seat, described two way sealed valve seat comprises sealing inserts (15), metallic packing ring (16), valve seat pressure ring (17), valve seat pressure ring (17) is arranged on the valve seat, be provided with metallic packing ring (16) on the valve seat pressure ring (17), be provided with sealing inserts (15) in the metallic packing ring (16), sealing inserts (15) matches by the interference mode with butterfly plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220598253 CN203239947U (en) | 2012-11-13 | 2012-11-13 | Large-diameter on-line maintenance butterfly valve used for cryogenic working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220598253 CN203239947U (en) | 2012-11-13 | 2012-11-13 | Large-diameter on-line maintenance butterfly valve used for cryogenic working condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239947U true CN203239947U (en) | 2013-10-16 |
Family
ID=49317245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220598253 Expired - Fee Related CN203239947U (en) | 2012-11-13 | 2012-11-13 | Large-diameter on-line maintenance butterfly valve used for cryogenic working condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239947U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603994A (en) * | 2013-11-29 | 2014-02-26 | 天津祥嘉流体控制系统有限公司 | Double-eccentric ultralow temperature butterfly valve |
| 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 |
-
2012
- 2012-11-13 CN CN 201220598253 patent/CN203239947U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603994A (en) * | 2013-11-29 | 2014-02-26 | 天津祥嘉流体控制系统有限公司 | Double-eccentric ultralow temperature butterfly valve |
| CN103603994B (en) * | 2013-11-29 | 2016-06-29 | 天津祥嘉流体控制系统有限公司 | A kind of double-eccentric ultralow temperature butterfly valve |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203239947U (en) | Large-diameter on-line maintenance butterfly valve used for cryogenic working condition | |
| CN205136730U (en) | Three eccentric two -way all -metals butterfly valve sealed firmly | |
| CN203404411U (en) | Underwater valve | |
| CN201818816U (en) | Pendulous ceramic gate valve | |
| CN201925513U (en) | Top mounted ball valve of inner-propped compound seal forged steel | |
| CN203880115U (en) | Unfurled type double-parallel-disc gate valve with guide hole | |
| CN203686193U (en) | High-temperature-resistant rigidity seal rapidly-closed door | |
| CN202914280U (en) | High rotating speed natural gas mother station compressor | |
| CN109848347A (en) | A kind of numerical-control electric screw press | |
| CN201787115U (en) | Column valve | |
| CN202629118U (en) | Ball screw gate valve | |
| CN205047866U (en) | Three off -centre low temperature butterfly valve sealed firmly | |
| CN205026125U (en) | Hard seal structure of high temperature cut -off valve | |
| CN205780902U (en) | A kind of quick-closing valve controlled by instrument supply gas | |
| CN207728922U (en) | A kind of heat-insulated lock gate hatch | |
| CN205991223U (en) | A kind of pneumatic control valve | |
| CN216383601U (en) | Horizontal low-temperature pressure container with pressure adjusting device | |
| CN202746746U (en) | Self-compensating high-temperature fixed ball valve rod seal structure | |
| CN102775042A (en) | Sealing device for nozzle hole of glass melting cellar | |
| CN102941502A (en) | Ultralow temperature processing method and ultralow temperature processing device for liquefied natural gas (LNG) equipment | |
| CN203979457U (en) | A kind of gate valve | |
| CN219062487U (en) | High-temperature ultrahigh-pressure gate valve | |
| CN204226663U (en) | A kind of elasticity stop valve | |
| CN203532851U (en) | Sealing three-way switching valve | |
| CN218818215U (en) | Butterfly valve with jacket structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20151113 |
|
| EXPY | Termination of patent right or utility model |