CN2866420Y - Pneumatic round-top valve - Google Patents
Pneumatic round-top valve Download PDFInfo
- Publication number
- CN2866420Y CN2866420Y CN 200520013349 CN200520013349U CN2866420Y CN 2866420 Y CN2866420 Y CN 2866420Y CN 200520013349 CN200520013349 CN 200520013349 CN 200520013349 U CN200520013349 U CN 200520013349U CN 2866420 Y CN2866420 Y CN 2866420Y
- Authority
- CN
- China
- Prior art keywords
- spool
- domed
- valve
- upper body
- dome
- 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 - Lifetime
Links
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- Multiple-Way Valves (AREA)
- Sliding Valves (AREA)
Abstract
An air-operated domed valve includes a domed spool, which is characterized in that the spool is composed of a spool upper body and a spool under body, wherein the two parts are connected detachably. When in specific use, the spool upper body and the spool under body are fixed with four symmetric bolts. Compared with prior art, the utility model has the advantages that as the spherical domed spool is a whole structure, the whole domed valve must be detached from the delivery pipe and replaced when the domed spherical surface of the spool is abraded by the high-speed solid material flow and need to be replaced; as the domed spool is a complete set of product, the replacement of the spool caused the replacement of its matching assembly; after dividing the spool into two parts, the upper flange is opened when replaced, the connecting bolt is loosed to separate the spool upper body and new spool is arranged ,therefore the purpose of saving-time, saving-effort, saving-money is achieved.
Description
Affiliated technical field
The utility model belongs to a kind of pneumatic valve that is installed in strength conveying solid substance particle or the powder model system, relates in particular to a kind of pneumatic dome valve in the YDF series.
Background technology
YDF series dome valve is the derailing switch of a gas delivery solid material, plays the effect of opening and cutting off pipeline space.It is applicable to by sealing delivery system loose, dry, inviscid, flowable solid material, is specially adapted to the lime-ash disposal system of thermal power plant.The shutoff of existing dome valve is realized by a rotatable spherical valve core and a gas filed rubber seal, the dome valve spool is according to the difference of use occasion, adopt different materials, different cure process modes are carried out on the surface, utilize the smooth hard surface of spool, can guarantee with the good closed contact of rubber seal reliable to guarantee leak free.But there is following problems in actual applications in the pneumatic dome valve of this structure: because the effect of high-speed solid streams; spherical valve core surface regular meeting suffers loss; need during replacing whole dome valve is disassembled from feed track; not only change trouble; but also need and will also more change with its matching used part parts, it is expensive to waste time and energy.
Summary of the invention
For overcoming the above-mentioned deficiency of prior art, the utility model provides a kind of pneumatic dome valve of novel structure, this valve is in actual applications when the spherical valve core loss need be changed, not only do not need whole dome valve is disassembled from feed track, and all valve members matching used with it need not change yet, and have the time saving and energy saving economical advantage of the spool of replacing.
For achieving the above object, the utility model has adopted following technical scheme, and this pneumatic dome valve comprises the dome-type spool of sphere, it is characterized in that: the dome-type spool of the sphere of this spool upper body (1) is connected for detachable with spool lower body (5).
During concrete enforcement, the spool upper body is connected with the bolt of spool lower body by four symmetries.
Compared with prior art, the beneficial effects of the utility model are: the existing dome-type spool of sphere is an integral structure, when the dome sphere of spool is needed to change by the wearing and tearing of high-speed solid streams, then whole dome valve must be disassembled from delivery duct and change, because dome valve is a complete sets of products, the replacing of spool certainly will cause the replacing together of its matching component.Behind the spool separated into two parts, only need open original upper flange during replacing, unclamp tie bolt and the spool upper body can be separated, change new spool upper body and get final product, realized time saving and energy saving economical purpose.
Description of drawings
Accompanying drawing is a sectional structure scheme drawing of the present utility model.
The specific embodiment
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.
Sequence number is represented respectively among the figure: spool upper body 1, bolt 2, upper flange 3, valve body 4, spool lower body 5, elastic cylindrical pin 6, axle drive shaft 7, propeller boss 8.
In conjunction with the accompanying drawings, flesh and blood of the present utility model is that the dome-shaped spool of original sphere is divided into spool upper body 1 and spool lower body 5, and 4 symmetrically arranged bolt 2 captive joints are adopted in split place, make it detachable.All the other structures are the prior art structure, and the spool global shape of split is constant, are complementary with valve body 4 grades.Rubber seal is positioned at the relevant position of spool upper body 1.Both faying faces of spool upper body 1 and spool lower body 5 are lenticular butt joint.
Its principle of work is as follows: the dome valve spool is a sphere dome, dome valve is in switching process, the gap that keeps having an appointment 0.2-0.4mm between spool and rubber seal, spool and rubber seal can be moved in contactless mode, purpose is to make not produce friction between spool and the rubber seal, reduces wear.The pneumatic apparatus of dome valve is the double acting straight line cylinder, drives the dome valve valve core rotation by pivoted arm.When dome valve is in closed condition, the rubber seal inflation, expanding is pressed on the sphere dome spool tightly, thereby forms a very failure-free seal band, has stoped flowing of the interior material of pipeline.
The working process of valve is: close (seal ring inflation) → close (seal ring exhaust) → valve core rotation → standard-sized sheet (seal ring is not inflated) → valve core rotation → close (seal ring is not inflated) → close (seal ring inflation), finish a circulation.
Normality: when spool was in the closed position, the trimming screw on the pivoted arm was pushed down the push rod of the motor-driven guiding valve of two-position three way, and source of the gas is to the seal ring air feed, and compression indicator demonstrates the pressure that acts on the seal ring.
Open mode: the moment that straight line cylinder begins to move, trimming screw on the pivoted arm breaks away from the push rod of the motor-driven guiding valve of two-position three way, and the gas in its seal ring is discharged from the deflation hole of the motor-driven guiding valve of two-position three way, and this moment, spool began to rotate, in rotation process, do not contact between spool and the seal ring.
Closed condition: under the instruction of closing, cylinder begins counteragent, the spool backward rotation, and when going to closed condition, the trimming screw on the pivoted arm is pushed down the push rod of the motor-driven guiding valve of two-position three way, and source of the gas is to the seal ring air feed.(close and put in place---the time between the inflation finishes by trimming screw.)
Claims (2)
1, a kind of pneumatic dome valve comprises the dome-type spool of sphere, it is characterized in that: the dome-type spool of the sphere of this spool upper body (1) is connected for detachable with spool lower body (5).
2, a kind of pneumatic dome valve as claimed in claim 1 is characterized in that: spool upper body (1) is captiveed joint by the bolt (2) of four symmetries with spool lower body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013349 CN2866420Y (en) | 2005-07-15 | 2005-07-15 | Pneumatic round-top valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013349 CN2866420Y (en) | 2005-07-15 | 2005-07-15 | Pneumatic round-top valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2866420Y true CN2866420Y (en) | 2007-02-07 |
Family
ID=37702123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520013349 Expired - Lifetime CN2866420Y (en) | 2005-07-15 | 2005-07-15 | Pneumatic round-top valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2866420Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976105A (en) * | 2012-11-06 | 2013-03-20 | 镇江市电站辅机厂有限公司 | Pneumatic control system of spherical air lock valve |
| CN106996464A (en) * | 2017-06-01 | 2017-08-01 | 浙江固特气动科技股份有限公司 | For the dome valve in air-transport system and dome valve automatic control system |
-
2005
- 2005-07-15 CN CN 200520013349 patent/CN2866420Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976105A (en) * | 2012-11-06 | 2013-03-20 | 镇江市电站辅机厂有限公司 | Pneumatic control system of spherical air lock valve |
| CN102976105B (en) * | 2012-11-06 | 2015-11-18 | 镇江市电站辅机厂有限公司 | A kind of air-path control system of ball gas-lock valve |
| CN106996464A (en) * | 2017-06-01 | 2017-08-01 | 浙江固特气动科技股份有限公司 | For the dome valve in air-transport system and dome valve automatic control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Gute Pneumatic Machinery Co., Ltd. Assignor: Ye Jianshan Contract record no.: 2011330000657 Denomination of utility model: Pneumatic round-top valve Granted publication date: 20070207 License type: Exclusive License Record date: 20110601 |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150715 Granted publication date: 20070207 |
|
| EXPY | Termination of patent right or utility model |