CN208381422U - A kind of connection structure between valve and pipeline - Google Patents
A kind of connection structure between valve and pipeline Download PDFInfo
- Publication number
- CN208381422U CN208381422U CN201820724291.2U CN201820724291U CN208381422U CN 208381422 U CN208381422 U CN 208381422U CN 201820724291 U CN201820724291 U CN 201820724291U CN 208381422 U CN208381422 U CN 208381422U
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- China
- Prior art keywords
- valve
- connection structure
- pipeline
- pipe diameter
- diameter
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- Expired - Fee Related
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- 230000000694 effects Effects 0.000 claims abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses the connection structures between a kind of valve and pipeline, including connection structure ontology, flange, belong to valve technology field.The connection structure ontology is suitable for a variety of valves including butterfly valve, ball valve, shut-off valve, gate valve, and structure both ends are connect by way of flanged joint with valve and pipeline.Connection structure both ends length between the utility model valve and pipeline is the half of valve nominal diameter, so that overflow section and the connection structure be made to be closer the function and effect to guarantee connection structure.The maximum cross-section diameter of the structure is two times of pipe diameter, and the gradient is 30-degree angle, and length of grade is identical as pipe diameter.There is one third to the knuckle of half pipe diameter size to reduce in stress collection and the generation of vortex in turning point, the structure can reduce the flow velocity at overflow section, increase pressure, the cavitation erosion for reducing valve, makes the pressure and velocity distribution near valve plate more rationally extend the service life of valve.
Description
Technical field
The utility model relates to valve technology fields.
Background technique
Valve be in the fluid system, for control the direction of fluid, pressure, flow device, be to make piping and equipment
Interior media flow or stopping and the device that can control its flow.And valve is in use especially in the case of small guide vane
It uses, since runner narrows, the change dramatically of flow velocity and pressure, fluid impacts generation at overflow section, at overflow section
Cavitation erosion easily occurs for valve and pipeline and erosion damages, and influences performance and the service life of valve.
Therefore, realize that a kind of structure simple designs are rationally easily installed performance improvement of the connection structure to valve of maintenance,
Optimize speed, the pressure, streamline distribution at overflow section, the service life for improving valve has very big help.In valve and pipeline
Between connect the structure after, flow velocity near valve plate and pressure distribution are more uniform, have achieved the effect that optimize valve design.
Utility model content
The main purpose of the utility model is the connection structure designed between valve and pipeline, it is intended to optimize valve knot
Structure is distributed the speed near valve plate, pressure more uniform, reduces the cavitation erosion and impact of valve, improve the service life of valve
And performance.To achieve the above object, the utility model provides the following technical solutions: the connection knot between a kind of valve and pipeline
Structure, including connection structure ontology, flange.Connection structure ontology both ends length is the half of valve nominal diameter, the knot
The maximum cross-section diameter of structure is two times of pipe diameter, and the gradient is 30-degree angle, and length of grade is identical as pipe diameter, is had in turning point
Knuckle of the one third to half pipe diameter size.
Compared with prior art, the utility model has the beneficial effects that the utility model structure is simple, design is reasonable, energy
The pressure and velocity distribution near valve plate is set more rationally to extend the service life of valve, turning point is with round-corner transition to reduce stream
The stress mutation of body.
Detailed description of the invention
Fig. 1 is the utility model positive structure schematic；
Fig. 2 is the utility model section structural schematic diagram；
Fig. 3 is the valve schematic perspective view in the valve of the utility model and an embodiment of pipe connecting structure,
Wherein valve is without connection structure；
Fig. 4 is the valve solid of the valve of the utility model and the band connection structure in an embodiment of pipe connecting structure
Structural schematic diagram.
In figure: 1- connection structure ontology；2- flange；3- valve seat；4- dish plate；5- valve rod；6- insertion ring；7- handwheel.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It removes, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, belongs to the protection scope of the utility model.
Please refer to Fig. 1-4, a kind of connection structure of valve and pipeline, by taking turbine flange hard seal butterfly valve as an example, including even
Connect structural body 1, flange 2, valve seat 3, dish plate 4, valve rod 5, insertion ring 6, handwheel 7.The both ends diameter of the connection structure ontology 1
For D, both ends length is 0.5D, length of grade D, and having radius in turning point is the knuckle of 1/3D to 1/2D size.
The connection structure is connect by way of flanged joint with valve and pipeline, and fluid is by passing through company after dish plate
Binding structure, fluid mass obviously increase, and the flow velocity after dish plate reduces, pressure increase, and streamline is spread to surrounding, then flows to pipeline.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned demonstration example embodiment, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, it in all respects, the embodiments should be taken as demonstration examples, and is non-limiting, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as involved
And claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
Specification is regarded as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (3)
1. the connection structure between a kind of valve and pipeline, including connection structure ontology (1), flange (2), it is characterised in that described
Structure both ends length is the half of valve nominal diameter, to make overflow section be closer with the connection structure to guarantee to connect
The function and effect of structure, the maximum cross-section diameter of the structure are two times of pipe diameter, and the gradient is 30-degree angle, length of grade with most
Diameter is identical at small bore, has knuckle of the one third to half pipe diameter size in turning point.
2. the connection structure between valve according to claim 1 and pipeline, which is characterized in that the structure both ends pass through
The mode of flanged joint is connect with valve and pipeline.
3. the connection structure between valve according to claim 1 and pipeline, which is characterized in that the structure turns at four
There is knuckle of the one third to half pipe diameter size at folding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820724291.2U CN208381422U (en) | 2018-05-15 | 2018-05-15 | A kind of connection structure between valve and pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820724291.2U CN208381422U (en) | 2018-05-15 | 2018-05-15 | A kind of connection structure between valve and pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208381422U true CN208381422U (en) | 2019-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820724291.2U Expired - Fee Related CN208381422U (en) | 2018-05-15 | 2018-05-15 | A kind of connection structure between valve and pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208381422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357023A (en) * | 2018-10-30 | 2019-02-19 | 武汉科技大学 | A kind of butterfly valve |
-
2018
- 2018-05-15 CN CN201820724291.2U patent/CN208381422U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357023A (en) * | 2018-10-30 | 2019-02-19 | 武汉科技大学 | A kind of butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20190515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |