CN203757006U - Novel throttling cut-off emptying valve sleeve type blow-down valve - Google Patents
Novel throttling cut-off emptying valve sleeve type blow-down valve Download PDFInfo
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- CN203757006U CN203757006U CN201420109473.0U CN201420109473U CN203757006U CN 203757006 U CN203757006 U CN 203757006U CN 201420109473 U CN201420109473 U CN 201420109473U CN 203757006 U CN203757006 U CN 203757006U
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- Prior art keywords
- valve
- sealing
- throttling
- emptying
- cut
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Abstract
The utility model discloses a novel throttling cut-off emptying valve sleeve type blow-down valve. The novel throttling cut-off emptying valve sleeve type blow-down valve is characterized by comprising a bottom cover (1), a valve body (2), a valve seat (3), a throttling sleeve (4), an O-shaped sealing ring A (5), a soft sealing gasket (6), a valve element (7), a valve element sleeve (8), a valve deck (9), a stuffing box (10), a valve rod (11), a valve rod nut (12), a hand wheel (13), an O-shaped sealing ring B (14), an O-shaped sealing ring C (15) and a throttling cone (16). The novel throttling cut-off emptying valve sleeve type blow-down valve is a novel throttling, cut-off and emptying product, and has the advantages of being capable of achieving multiple levels of throttling effects, obvious in throttling effect, reliable in sealing, convenient to operate and maintain and the like. Due to the fact that double-sealing (hard sealing and soft sealing) is adopted, sealing is made to be reliable, airflow scouring and abrasion can be better resisted through a hard alloy sealing face, and zero leakage under a high-pressure gas medium condition can be achieved through the double sealing; the service life of the valve is long. The middle of the hand wheel is of a square structure or a hexagonal structure or a round hole structure, the hand wheel is formed through one-time steel plate stamping, and has the advantage of being attractive in appearance, fine and smooth in hand touch, convenient to use, durable and the like.
Description
Technical field
The utility model relates to a kind of blowdown valve, is specifically a kind of novel throttling stop emptying valve shell type blowdown valve.
Background technique
Valve cover drainage valve is developed by gate, utilizes the object of gear 90-degree rotation band ovable valve stem lifting implementation opening and closing.Moment is little, easy and simple to handle, easily realizes fast opening and closing.Valve cover drainage valve is simple in structure, good airproof performance not only, and volume is little, lightweight, material consumption is few, installation dimension is little, particularly drive the periodical blowdown of blowdown valve pn≤20mpa high-pressure autoclave, can five passage blowdowns simultaneously, also can a passage blowdown.In prior art, sealing surface is washed away and is destroyed in media flow process, therefore working life is short, causes leakage.
Model utility content
The purpose of this utility model is to provide a kind of novel throttling stop emptying valve shell type blowdown valve at this, and this valve has multistage throttle effect, restriction effect obviously, reliable, the convenient operating maintenance of sealing etc. a little.
The utility model is to realize like this, construct a kind of novel throttling stop emptying valve shell type blowdown valve, it is characterized in that: bottom, valve body, valve seat, orifice sleeve, O-ring seals A, soft seal pad, spool, valve core housing, valve gap, stuffing box, valve rod, Stem Mut, handwheel, O-ring seals B, O-ring seals C, throttling cone; Between bottom and valve body, be bolted; Valve seat is set in valve body, and throttling cone, orifice sleeve are positioned at valve seat, and soft seal pad is positioned under spool, and spool arranges by valve core housing; Handwheel arranges by Stem Mut and is connected with valve rod; Described handwheel middle part is positive tetragonal or positive hexagonal structure or borehole structure.
The utility model has the advantage of: described in the utility model.The utility model is a kind of novel throttling, cut-off, emptying product, and this product has multistage throttle effect, the features such as restriction effect is obvious, sealing is reliable, convenient operating maintenance; Adopt that double seal (hard, soft sealing) makes that sealing is reliable, cemented carbide front cover can more resistance to airflow scouring, wear-resistant, double seal can be accomplished the zero leakage under high-pressure gas medium condition; Valve long service life.Described handwheel middle part is positive tetragonal or positive hexagonal structure or borehole structure; Handwheel adopts disposable steel plate punched moulding, has beautiful shape, and feel is fine and smooth, facilitates the features such as durable.
Accompanying drawing explanation
Fig. 1 is the utility model novel throttling stop emptying valve shell type blowdown valve structural representation
Fig. 2-4th, the utility model handwheel schematic diagram
Wherein: 1, bottom, 2, valve body, 3, valve seat, 4, orifice sleeve, 5, O-ring seals A, 6, soft seal pad, 7, spool, 8, valve core housing, 9, valve gap, 10, stuffing box, 11, valve rod, 12, Stem Mut, 13, handwheel, 14, O-ring seals B, 15, O-ring seals C, 16, throttling cone.
Embodiment
Below in conjunction with accompanying drawing, 1-4 is elaborated to the utility model, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in the figure, the utility model provides a kind of novel throttling stop emptying valve shell type blowdown valve, bottom 1, valve body 2, valve seat 3, orifice sleeve 4, O-ring seals A5, soft seal pad 6, spool 7, valve core housing 8, valve gap 9, stuffing box 10, valve rod 11, Stem Mut 12, handwheel 13, O-ring seals B14, O-ring seals C15, throttling cone 16; Between bottom 1 and valve body 2, be bolted; The interior valve seat 3 that arranges of valve body 2, throttling cone 15, orifice sleeve 4 are positioned at valve seat 3, and soft seal pad 6 is positioned at spool 7 times, and spool 7 arranges by valve core housing 8; Handwheel 13 arranges by Stem Mut 12 and is connected with valve rod 11; Described handwheel 13 middle parts are positive tetragonal or positive hexagonal structure or borehole structure; Handwheel adopts disposable steel plate punched moulding, has beautiful shape, and feel is fine and smooth, facilitates the features such as durable.
The utility model is a kind of novel throttling, cut-off, emptying product, and this product has multistage throttle effect, the features such as restriction effect is obvious, sealing is reliable, convenient operating maintenance; Adopt that double seal (hard, soft sealing) makes that sealing is reliable, cemented carbide front cover can more resistance to airflow scouring, wear-resistant, double seal can be accomplished the zero leakage under high-pressure gas medium condition; Valve long service life.
Working principle: 1, normally off: the hard sealing of flap is paid and is pressed on valve seat boss, form one hard sealing, the soft sealing and the valve seat end face that are embedded on flap press simultaneously, the sealing of formation second, two matter sealing configurations have guaranteed the zero leakage of valve, then because flap has been offered equalizing orifice, make valve when closing, opening, flap is subject to less active force, also makes valve opening, has less moment while closing.2, throttling blowdown state: flap sealing is paid and lifted off a seat, and owing to being provided with equalizing orifice at flap place, makes valve opening very light.After valve opening, ducted medium, impurity together flow through valve pocket, valve seat, realize throttling and blowdown simultaneously.Flap, sealing surface of seat utilize sleeve gasket oblique angle change MEDIA FLOW to, have from cleaning function, sealing is paid and does not carry impurity secretly.3, closed condition: throttle down after the discharge of pipeline medium, medium enters valve base channel from sleeve gasket oblique angle, and flow resistance coefficient increases, flow velocity is accelerated, and oblique angle changes MEDIA FLOW to direction, produces eddy current, valve seat end face medium radial force increases, and realizes the purging of valve seat unpacking.Flap sealing is paid while approaching valve seat, the matching gap of sleeve gasket and valve base channel stops larger particles MEDIA FLOW to be paid to sealing, in addition the further increase of flow velocity and the purging of medium transverse force, during valve closing, sealing pair impurity cleans totally completely, guaranteed the sealability after valve blowdown, thereby after further guaranteeing blowdown, sealing also can reach without leaking.Therefore greatly improved ability and extended working life.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To these embodiments' multiple modification, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. a novel throttling stop emptying valve shell type blowdown valve, is characterized in that: bottom (1), valve body (2), valve seat (3), orifice sleeve (4), O-ring seals A(5), soft seal pad (6), spool (7), valve core housing (8), valve gap (9), stuffing box (10), valve rod (11), Stem Mut (12), handwheel (13), O-ring seals B(14), O-ring seals C(15), throttling cone (16); Between bottom (1) and valve body (2), be bolted; Valve seat (3) is set in valve body (2), and throttling cone (15), orifice sleeve (4) are positioned at valve seat (3), and soft seal pad (6) is positioned under spool (7), and spool (7) arranges by valve core housing (8); Handwheel (13) is arranged and is connected with valve rod (11) by Stem Mut (12); Described handwheel (13) middle part is positive tetragonal or positive hexagonal structure or borehole structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109473.0U CN203757006U (en) | 2014-03-12 | 2014-03-12 | Novel throttling cut-off emptying valve sleeve type blow-down valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109473.0U CN203757006U (en) | 2014-03-12 | 2014-03-12 | Novel throttling cut-off emptying valve sleeve type blow-down valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757006U true CN203757006U (en) | 2014-08-06 |
Family
ID=51252285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420109473.0U Expired - Fee Related CN203757006U (en) | 2014-03-12 | 2014-03-12 | Novel throttling cut-off emptying valve sleeve type blow-down valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203757006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315165A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve sleeve for throttling stop emptying valve |
-
2014
- 2014-03-12 CN CN201420109473.0U patent/CN203757006U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315165A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve sleeve for throttling stop emptying 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20170312 |