CN203404402U - Direct connection counter pressure type pulp stock valve - Google Patents
Direct connection counter pressure type pulp stock valve Download PDFInfo
- Publication number
- CN203404402U CN203404402U CN201320486823.0U CN201320486823U CN203404402U CN 203404402 U CN203404402 U CN 203404402U CN 201320486823 U CN201320486823 U CN 201320486823U CN 203404402 U CN203404402 U CN 203404402U
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- China
- Prior art keywords
- valve
- valve rod
- pressure type
- pulp stock
- flashboard
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- Expired - Fee Related
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Abstract
The utility model discloses a direct connection counter pressure type pulp stock valve and relates to a knife-shaped gate valve. The direct connection counter pressure type pulp stock valve comprises a valve body, a gate plate, a valve rod, a gate plate connecting pin, a limiting gasket plate, a fastening screw, a valve deck, a padding cushion, a gland, a valve rod nut, a support, a handwheel, a valve deck sealing gasket and a gate plate inclined face sealing ring. The valve deck sealing gasket is arranged between the valve body and the valve deck. The upper end of the valve rod is supported through the support and is connected with the valve rod nut. An unthreaded rod part in the middle of the valve rod realizes sealing of a valve rod hole through a fastening piece and the gland. The lower end of the valve rod is connected with the gate plate and the gate plate inclined face sealing ring through the gate plate connecting pin, the limiting gasket and the fastening screw. The handwheel is locked on the valve rod nut. The direct connection counter pressure type pulp stock valve solves the difficult problem that media are accumulated and stuck, and is free of grooves and free of accumulation and blocking so as to reduce closing torque. Experiments and tests show that the direct connection counter pressure type pulp stock valve is free of sealing leakage, free of accumulation and blocking, easy to open and close, capable of achieving design effects completely, and capable of being used on transmission lines of papermaking or water systems and other industries.
Description
Technical field
The utility model relates to cutter type gate valve, especially relates to a kind of straight-through back pressure type pulp stock valve.
Background technique
The open-shut device of cutter type gate valve for slurry is flashboard, and moving direction and the flow direction of flashboard are perpendicular, can only make standard-sized sheet and complete shut-down, can not make adjustments and throttling, has the remarkable advantages such as light and handy, lightweight, the accurate physical dimension of switch, installation and maintenance convenience.Because adopting cutter type flashboard, therefore there is good shear action, be most appropriate to the unmanageable fluids such as slurry, powder-granule material, fiber, be widely used in the industries such as papermaking, petrochemical industry, mine, draining, food.Not only there is multiple valve seat available, and can be according to field control demand, be equipped with electronic or pneumatic actuator, realize the automation mechanized operation of valve, its performance is: operating temperature≤450 ℃, Applicable media: paper pulp, sewage, coal slurry, ash, slag-water slurry, main parts size has valve body, valve gap, flashboard and valve rod, and its material has stainless steel, carbon steel, gray cast iron, carbon steel, rubber, stainless steel, cemented carbide etc.
The following shortcoming of existing valve ubiquity:
Existing cutter type gate valve is because its flashboard is parallel structure, and the whole sealing surface back position of flashboard is without the strong point, and with groove structure, and sealing can not be accomplished zero leakage, has weeping, and befouling environment causes economic loss.In addition, the groove structure of employing is easy to G-card stolen goods thing, finally causes valve to close.
Chinese patent CN87203308 discloses a kind ofly take slurry and on industrial pipeline, plays the special valve of control action as main medium.Mainly by valve body, flashboard, valve gap, valve rod, handwheel, fastening piece, formed.Its compact structure, volume is little, lightweight, and rigidity is strong, ne-leakage, good seal performance, long service life, cost is low, is the novel valve of being badly in need of on the light industry industrial pipelines such as papermaking, alcoholic.
Chinese patent CN202109015U discloses a kind of plunger type pulp stock valve, comprise valve body, upper valve body, plunger, valve rod, handwheel, handwheel connecting base, pillar, Stem Mut, limiting board, valve body and upper valve body Joint, and the inner chamber of valve body is connected with the inner chamber of upper valve body, on the inner chamber of upper valve body, be equipped with plunger, one end Joint of plunger and valve rod, on the other end of valve rod, be equipped with handwheel connecting base, handwheel connecting base is provided with the handwheel with valve rod interlock, between upper valve body and handwheel connecting base, by pillar, fix, between valve rod and plunger, by Stem Mut, fix, Stem Mut, limiting board and plunger are bolted, on described limiting board, offer the semicircle elongated slot coordinating with the slippage of pillar phase.By rotation hand wheel, band ovable valve stem rotates, and drives plunger lifting simultaneously, thereby controls the unlatching of pulp stock valve or close, and realizes the connection of medium on pipeline or blocks.
Chinese patent CN2869460 discloses a kind of alumina Y-shape sizing material valve, the pilot notched that the sealing surface place setting of its flap and the sealing surface of valve seat adapt; The cemented carbide thing that high hardness is set on flap and sealing surface of seat place flap, its surface arranges tungsten carbide coating.So greatly improved the resistance to erosion decay resistance of sealing surface, thereby extended the working life of product.
Summary of the invention
The purpose of this utility model is to provide sealing effect a kind of improved straight-through back pressure type pulp stock valve preferably.
The utility model is provided with valve body, flashboard, valve rod, flashboard connecting pin, spacing shim, Cock screw, valve gap, Packing seat, gland, Stem Mut, support, handwheel, valve bonnet seal pad and flashboard inclined-plane seal ring;
Between described valve body and valve gap, be provided with valve bonnet seal pad, valve rod upper end is connected by stent support and with Stem Mut, the middle part polished rod portion of valve rod realizes the sealing of valve rod hole by fastening piece and gland, valve rod lower end is connected with flashboard inclined-plane seal ring with flashboard by flashboard connecting pin, spacing shim, Cock screw; Described handwheel is locked on Stem Mut.
Described valve body and valve gap can pass through stud bolt, cover type nut, flat gasket connection valve sealing cushion for cover realization sealing, to bear pipeline pressure.
The middle part polished rod portion of described valve rod can be by the filler of interior hexagonal pointless screw, hexagon nut, flat gasket, gland compressible filler pad top, to realize valve rod hole sealing.
Described Cock screw can adopt interior hexagonal Cock screw.
Described handwheel can be locked on Stem Mut by round nut, thereby realizes the Kai Heguan to flashboard by operation handwheel, to play, the switch of pipeline fluid is controlled.
Key problem in technology of the present utility model is structure, outlet end to be made into full-bore and pipeline and maintains an equal level and reinforced structure, on flashboard, increased inclined-plane ring structure, making the outlet end structure of gate valve into full-bore and pipeline maintains an equal level, at exit seal face, ramp structure is processed at place, because the more past ShiShimonoseki of ramp structure is tighter, and can adopt a circle support block, so sealing effect is good.In addition, owing to adopting full-bore structure, therefore open and close fast without G-card.
Compare with existing pulp stock valve, the utility model has solved a difficult problem for medium G-card, without groove, without G-card, thereby has reduced to close moment.Through experiment test, show, the utility model, without any seal leakage, does not have G-card, and switch is light, reaches design effect completely, can the first-class industry of transmission line on papermaking and water system use.
Accompanying drawing explanation
Fig. 1 is that the utility model embodiment's structure forms schematic diagram.
Embodiment
Referring to Fig. 1, the utility model embodiment is provided with valve body 1, flashboard 2, valve rod 3, flashboard connecting pin 4, spacing shim 5, interior hexagonal Cock screw 6, valve gap 7, Packing seat 8, gland 9, Stem Mut 10, support 11, handwheel 12, hexagonal pointless screw 14, hexagon nut 15, flat gasket 16, stud bolt 17, cover type nut 18, flat gasket 19, valve bonnet seal pad 20 and flashboard inclined-plane seal ring 21.
Described valve body 1 is realized sealing with valve gap 7 by stud bolt 17, cover type nut 18, flat gasket 19 connection valve sealing cushion for cover 20, to bear pipeline pressure.Valve rod 3 upper ends are supported by support 11 and are connected with Stem Mut 10, and the middle part polished rod portion of described valve rod 3 can be by the filler of interior hexagonal pointless screw 14, hexagon nut 15, flat gasket 16, gland 9 compressible filler pad 8 tops, to realize valve rod hole sealing.Valve rod 3 lower ends are connected with flashboard inclined-plane seal ring 21 with flashboard 2 by flashboard connecting pin 4, spacing shim 5, interior hexagonal Cock screw 6; Described handwheel 12 can be locked on Stem Mut 10 by round nut 13, thereby the Kai Heguan realizing flashboard by operation handwheel 12 controls the switch of pipeline fluid to play.
Claims (5)
1. straight-through back pressure type pulp stock valve, is characterized in that being provided with valve body, flashboard, valve rod, flashboard connecting pin, spacing shim, Cock screw, valve gap, Packing seat, gland, Stem Mut, support, handwheel, valve bonnet seal pad and flashboard inclined-plane seal ring;
Between described valve body and valve gap, be provided with valve bonnet seal pad, valve rod upper end is connected by stent support and with Stem Mut, the middle part polished rod portion of valve rod realizes the sealing of valve rod hole by fastening piece and gland, valve rod lower end is connected with flashboard inclined-plane seal ring with flashboard by flashboard connecting pin, spacing shim, Cock screw; Described handwheel is locked on Stem Mut.
2. lead directly to as claimed in claim 1 back pressure type pulp stock valve, it is characterized in that described valve body and valve gap are by stud bolt, cover type nut, flat gasket connection valve sealing cushion for cover.
3. lead directly to as claimed in claim 1 back pressure type pulp stock valve, it is characterized in that the middle part polished rod portion of described valve rod is by the filler of interior hexagonal pointless screw, hexagon nut, flat gasket, gland compressible filler pad top.
4. lead directly to as claimed in claim 1 back pressure type pulp stock valve, it is characterized in that described Cock screw adopts interior hexagonal Cock screw.
5. lead directly to as claimed in claim 1 back pressure type pulp stock valve, it is characterized in that described handwheel is locked on Stem Mut by round nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486823.0U CN203404402U (en) | 2013-08-09 | 2013-08-09 | Direct connection counter pressure type pulp stock valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486823.0U CN203404402U (en) | 2013-08-09 | 2013-08-09 | Direct connection counter pressure type pulp stock valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404402U true CN203404402U (en) | 2014-01-22 |
Family
ID=49940339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486823.0U Expired - Fee Related CN203404402U (en) | 2013-08-09 | 2013-08-09 | Direct connection counter pressure type pulp stock valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286873A (en) * | 2016-11-07 | 2017-01-04 | 施瑞德阀门(厦门)有限公司 | A kind of inclined-plane guide-slot type ceramic gate valve |
-
2013
- 2013-08-09 CN CN201320486823.0U patent/CN203404402U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286873A (en) * | 2016-11-07 | 2017-01-04 | 施瑞德阀门(厦门)有限公司 | A kind of inclined-plane guide-slot type ceramic gate valve |
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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: 20140122 Termination date: 20140809 |
|
| EXPY | Termination of patent right or utility model |