CN1107952A - Ball valve for powder and/or granular material - Google Patents
Ball valve for powder and/or granular material Download PDFInfo
- Publication number
- CN1107952A CN1107952A CN 93120512 CN93120512A CN1107952A CN 1107952 A CN1107952 A CN 1107952A CN 93120512 CN93120512 CN 93120512 CN 93120512 A CN93120512 A CN 93120512A CN 1107952 A CN1107952 A CN 1107952A
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- valve
- ring
- ball valve
- valve seat
- shape
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Abstract
The invention discloses a ball valve used for powder and/or granular materials. The shape of the interior part of the valve seat pedestal ring face is a slant surface extending along the side of a butterfly valve; the shape of the interior part of the end face of the big diameter trapezoid part formed on the inner wall surface of the flow channel of the valve seat pedestal ring that can axially move is a slant surface extending along the side of flow channel. The annular gap between the two end faces of the two inclined planes are formed in manner of widening inwards conically along the axial direction, therefore, a certain included angle is formed between thereof. The ball value can ensure the powder and/or granular materials not adhere to the valve seat pedestal ring face and adjacent elements.
Description
Present invention relates in general to a kind of gudgeon formula ball valve, this ball valve can not only be applicable to powder and/or bulk material better, and can be used for containing the fluid of powder and/or bulk material.Or rather, the present invention relates to the improvement to the aforementioned type ball valve, the ball valve after the improvement can guarantee that powder and/or bulk material can be attached on valve seat seat ring and the adjacent element.
So far, the known shortcoming that is used for traditional gudgeon formula ball valve of powder and/or bulk material is, powder and/or bulk material (hereinafter being referred to as pulverulent material) are full of and attached in formed annular space or the space between ball valve runner end face and the valve seat seat ring end face, like this, cause the valve seat seat ring to be difficult to move towards spherical valve disc direction vertically, perhaps may not move.
In order to overcome above-mentioned defective, in as the communique of Japanese Utility Model patent disclosure NO.3-31887, proposed a kind of about preventing that pulverulent material is attached to the device near the part of the ball valve the valve seat seat ring.According to the invention of the prior art, before valve disc conversion or at valve disc, become in closed condition or the opposite process from the opening of valves state exchange, the liquid of pressurization is introduced in the ball valve part that may be stained with pulverulent material.
But, with aforesaid way conventional ball valve is improved, make structure multiple inevitably, and bring the restive problem of introducing of pressure fluid, can improve the expense of making ball valve what is more.
For overcoming above-mentioned shortcoming, special proposition the present invention.
Therefore, an object of the present invention is to provide a kind of ball valve, this ball valve can guarantee that under the pressure fluid condition powder and/or bulk material are non-cohesive on valve seat seat ring and adjacent element.
Another object of the present invention provides a kind of ball valve, and this valve can guarantee that powder and/or bulk material that remittance is long-pending do not hinder valve seat block circle moving towards spherical valve disc direction.
According to an aspect of the present invention, a kind of ball valve that is used for powder and/or pulverulent material is provided, wherein, the shape of the inside part of valve seat seat ring end face is the long face at the diagonally extending of valve disc side, be equipped with can the runner inner wall surface of axially movable valve seat seat ring on the shape of inner end part of end face of formed major diameter trapezoidal portions be surface at the diagonally extending of flow passage side, two plane of inclination form along the inside tapered ground of axial direction add wide way with the annular space between the both ends of the surface, thus, between forms certain included angle.
This angle is preferably got 30 ° or bigger.
In this structure, the outer circumferential edges of ring-type conical spring is stuck on the established angle of trapezoidal portions of valve disc side, and its inner circumferential edge is stuck on the established angle of the back, valve seat seat ring edge on the valve disc side, thus, the elastic force by means of the ring-type conical spring makes the valve seat seat ring move to ground towards spherical valve disc axis of orientation.
According to another aspect of the present invention, a kind of ball valve that is used for powder and/or bulk material is provided, wherein, the shape of the inside part of valve seat seat ring end face is the surface at the diagonally extending of valve disc side, the shape that the end face of formed major diameter trapezoidal portions on the runner inner wall surface that can move axially the valve seat seat ring is housed is on flow passage side and the surface of radially extending intersect vertical axis, two extended surfaces form towards the inwardly tapered add wide way of axial direction with the annular space between the both ends of the surface, thus, between forms certain included angle.
This angle is preferably got 30 ° or bigger.
In addition, according to another aspect of the invention, a kind of ball valve that is used for powder and/or bulk material is provided, wherein, spherical conical spring is contained in the established angle place that is holding the formed major diameter trapezoidal portions in runner inner wall surface that can axially movable valve seat seat ring, the shape of cross section of described ring-type conical spring is the surface at the diagonally extending of valve disc side, the shape of the inside part of end face of major diameter trapezoidal portions that is positioned at the inwall of flow passage side is the surface at the diagonally extending of flow passage side, the inclined surface of two extensions forms to inner conical ground add wide way towards axial direction with the annular space between the both ends of the surface, thus, between forms certain included angle.
In this structure, same, this angle is preferably got 30 ° or bigger.
The ring-type conical spring at established angle place that is contained in the trapezoidal portions of runner side inner wall surface relies on himself elastic force that the valve seat seat ring is moved to ground towards spherical valve disc axis of orientation.
Below, in conjunction with the accompanying drawings the present invention is narrated, can make other purpose of the present invention, feature and advantage more cheer and bright by these descriptions.Wherein:
Fig. 1 is the vertical cross-section schematic representation according to first embodiment of the invention;
Fig. 2 is partial cross section's enlarged view of ball valve shown in Figure 1, shows the structure of ball valve section A among the figure especially;
Fig. 3 is the partial cross section's enlarged view according to the ball valve of second embodiment of the invention, shows the structure of ball valve section A equally especially; And
Fig. 4 is the partial cross section's enlarged view according to the ball valve of third embodiment of the invention, shows the structure of ball valve section A equally especially.
With reference to the accompanying drawings several optimum examples of the present invention is described in detail.
The vertical cross-section of Fig. 1 illustrates the ball-valve structure according to first embodiment of the invention.
The structure of this ball valve and common gudgeon formula ball valve are basic identical.Specifically, this ball valve comprises the valve body 4 that constitutes valve pocket 1, and valve pocket 1 comprises the first flow 2 in left side and second runner 3 on right side.A spherical valve disc 5 is being installed in rotation on by the mode of valve shaft 7 hand rotation in the valve body 4, and valve shaft 7 stretches out the upper wall 6 of valve pocket 1.
The ball-valve structure of first enforcement is characterised in that the structure that constitutes first valve seat 8 according to the present invention., with reference to Fig. 2 the structure of first valve seat 8 is narrated again down, Fig. 2 is the local amplification sectional view of ball valve section A for this reason.
Specifically, first valve seat 8 is made up of a cylindrical valve seat seat ring 11 and ring-type conical spring 13, cylindrical valve seat seat ring 11 is packed in the trapezoidal portions 10 movably, trapezoidal portions 10 has big internal diameter in runner direction (promptly axial), and ring-type conical spring 13 relies on himself elastic force that valve seat seat ring 12 is pressed to valve disc 5 usually.Trapezoidal portions 10 forms in the zone that first flow 2 communicates with valve pocket 1, and valve seat 11 is suitable for sealably contacting with valve disc 5, and forming foremost around cylindrical valve seat seat ring 12.
The outer circumferential edges of conical spring 13 matches with formed established angle 14 in the valve pocket 1 securely, and its inner circumferential edge is stuck on the formed established angle in valve seat seat ring 15 behinds, 11 major diameter edge sections securely.
The shape of the inner end part of valve seat seat ring 12 left end face is the inclined surfaces 16 that extend towards the direction that valve disc 5 tilts to the right.And the shape of the inner end part of trapezoidal portions 10 left end face is the inclined surface 17 that extends towards the direction that first flow 2 is tilted to the left equally.
Show that by test result formed angle is preferably got 30 ° or bigger between two inclined surfaces 16 and 17.
Partial cross section's enlarged view of Fig. 3 shows the ball-valve structure according to second embodiment of the invention.In this embodiment, the shape of the left end face of trapezoidal portions is the radially extensional surface 18 with intersect vertical axis, and the shape of valve seat seat ring 12 its right end face is the extensional surfaces 16 that are tilted to the right, and inclined surface 16 is 30 ° or bigger with respect to inclined surface 18 formed angle α values.
Referring to Fig. 4, partial cross section's enlarged view of Fig. 4 shows the ball-valve structure according to the 3rd embodiment of the present invention.In this embodiment, the outer circumferential edges of ring-type conical spring 13 is stuck on the established angle 19 that is positioned at major diameter trapezoidal portions 10 left sides securely, and its inner circumferential edge matches with the underpart in valve seat seat ring 12 left sides, like this, rely on the axis of elasticity of conical spring 13 to push valve seat seat ring 12 to the right.In addition, the shape of the part of trapezoidal portions 10 left end face is surfaces 17 of skew back extension left.In this case, formed angle α value is similarly 30 ° or bigger between conical spring 13 and the inclined surface 17.
In traditional ball-valve structure, each end face of valve seat seat ring and the shape of end face of major diameter seepage flow part that the runner inner wall surface of axially movable valve seat seat ring is housed are the radially extensional surfaces with intersect vertical axis.Like this, hydrodynamic pressure occurs in the annular space between two end faces and reduce singularly, or in this gap, produce eddy current.
Because these abnormal factorses can make the pulverulent material that is included in the fluid charge into this gap very soon.Along with the increase of the pulverulent material that charges into the annular space, these materials will be difficult to take away from here, and attached in the annular space, like this, at short notice, pulverulent material will stick in the annular space, cause the valve seat seat ring can not be normally towards or leave spherical valve disc and axially move.Cause ball valve to be difficult to drive exactly.
The present invention compares with traditional ball valve, because the annular space between the both ends of the surface broadens towards its axial direction in runner taperedly, the fluid through runner can flow reposefully like this, seldom produces pressure and reduces and eddy current.Like this, when pulverulent material enters the annular space of widening taperedly, be easy to take away from here with fluid is mobile.Thereby can not produce such abnormal conditions in the annular space that pulverulent material broadens attached to taper.
Though on again three most preferred embodiments of the present invention are described, be appreciated that the present invention is not limited to these embodiments, in not exceeding claim of the present invention institute restricted portion, can make various changes or change.
Claims (9)
1, a kind of ball valve that is used for powder and/or bulk material, it is characterized in that, the shape of the inside part of valve seat seat ring end face is the surface at the diagonally extending of valve disc side, the shape of the inside part of the end face of formed major diameter trapezoidal portions is the surface at the diagonally extending of flow passage side on the inner wall surface that the said runner that moves axially the valve seat seat ring is housed, the mode that two plane of inclination are widened to inner conical ground towards axial direction with the annular space between the both ends of the surface forms, thus, between forms certain included angle.
2, ball valve according to claim 1 is characterized in that, described angle value is 30 ° or bigger.
3, ball valve according to claim 1, it is characterized in that, the outer circumferential edges of ring-type conical spring is stuck in the established angle place of described trapezoidal portions of the inner wall surface of valve disc side, and its inner circumferential edge is stuck on the described valve seat seat ring edge section established angle behind of valve disc side, thus, described valve seat seat ring is moved to ground towards spherical valve disc axis of orientation.
4, a kind of ball valve that is used for powder and/or bulk material, it is characterized in that, the shape of the inside part of valve seat seat ring end face is the surface at the diagonally extending of valve disc side, in the shape of the end face that the said major diameter trapezoidal portions that forms on can the runner inner wall surface of axially movable valve seat seat ring is housed is flow passage side and radially extensional surface intersect vertical axis, two extensional surfaces with the annular space between the both ends of the surface towards axial direction to inner conical the mode that broadens form, between forms certain included angle like this.
5, ball valve according to claim 4 is characterized in that, described angle value is 30 ° or bigger.
6, ball valve according to claim 4, it is characterized in that, the outer circumferential edges of ring-type shape disc spring is stuck in the established angle place of the described trapezoidal portions of the inner wall surface that is positioned at the valve disc side, and its inner circumferential edge is stuck on the established angle of back, edge section of described valve seat seat ring of valve disc side, like this, the valve seat seat ring is moved slidably towards spherical valve disc direction.
7, a kind of ball valve that is used for powder and/or bulk material, it is characterized in that, the ring-type conical spring be contained in be equipped with can the runner inner wall surface of axially movable valve seat seat ring on the established angle place of formed major diameter trapezoidal portions, the shape of cross section of described ring-type conical spring is the surface of tiltedly extending in the valve disc inclination, in the shape of the inside part of the end face of the described major diameter trapezoidal portions of the inner wall surface of flow passage side is surface at the diagonally extending of flow passage side, the surface of two diagonally extendings forms to inner conical ground add wide way towards axial direction with the annular space between the both ends of the surface, thus, between forms certain included angle.
8, ball valve according to claim 7 is characterized in that, the value of described angle is 30 ° or bigger.
9, ball valve according to claim 7 is characterized in that, is contained in ring-type conical spring at the established angle place of the described trapezoidal portions of the inner wall surface of flow passage side and relies on himself elastic force that the direction of valve seat seat ring towards spherical ball valve axially moved.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP78144/92 | 1992-10-16 | ||
| JP7814492U JPH0635753U (en) | 1992-10-16 | 1992-10-16 | Ball valve for powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1107952A true CN1107952A (en) | 1995-09-06 |
Family
ID=13653699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93120512 Pending CN1107952A (en) | 1992-10-16 | 1993-10-16 | Ball valve for powder and/or granular material |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0635753U (en) |
| CN (1) | CN1107952A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007087739A1 (en) * | 2006-02-05 | 2007-08-09 | Yongsheng Song | Valve seat |
| WO2007131388A1 (en) * | 2006-05-15 | 2007-11-22 | Yongsheng Song | Vavle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5697072B2 (en) * | 2010-05-20 | 2015-04-08 | ペンテア フロー サーヴィシーズ アクチェンゲゼルシャフト | Ball valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5199335A (en) * | 1975-02-28 | 1976-09-01 | Hitachi Ltd | KYUKEIBEN |
-
1992
- 1992-10-16 JP JP7814492U patent/JPH0635753U/en active Pending
-
1993
- 1993-10-16 CN CN 93120512 patent/CN1107952A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007087739A1 (en) * | 2006-02-05 | 2007-08-09 | Yongsheng Song | Valve seat |
| CN101400930B (en) * | 2006-02-05 | 2012-05-30 | 宋永生 | Valve seat |
| WO2007131388A1 (en) * | 2006-05-15 | 2007-11-22 | Yongsheng Song | Vavle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635753U (en) | 1994-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |