CN203131087U - Multifunctional plug valve - Google Patents
Multifunctional plug valve Download PDFInfo
- Publication number
- CN203131087U CN203131087U CN 201320143640 CN201320143640U CN203131087U CN 203131087 U CN203131087 U CN 203131087U CN 201320143640 CN201320143640 CN 201320143640 CN 201320143640 U CN201320143640 U CN 201320143640U CN 203131087 U CN203131087 U CN 203131087U
- Authority
- CN
- China
- Prior art keywords
- valve
- straight trough
- spool
- working surface
- circular arc
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 210000003141 lower extremity Anatomy 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000006837 decompression Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Details Of Valves (AREA)
- Sliding Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a multifunctional plug valve. The multifunctional plug valve comprises a drive mechanism, a valve rod, a valve cover, a pressure plate, a valve core and a valve body, wherein a rotating shaft of the drive mechanism drives the valve core to rotate through the valve rod. Two working surfaces and two sealing surface, which are alternately distributed, are uniformly distributed in the circumferential direction of the valve core, and the valve core and a hard sealing annular surface on the edge of an internal outlet of the plug valve form a rotating sealing pair; one working surface of the valve core is provided with a through hole; and an inner circle and an outer circle of the other working surface of the valve core are respectively provided with a group of intersected straight channels in identical size, and the inner straight channel is communicated with the outer straight channel through an internal arc cavity. In the opening and closing process of the valve, the communication and disconnection between the working surfaces and the outlet can be realized through the rotating motion of the valve. Through the multi-working-surface structure, the function of the plug valve is diversified, and the first working surface can realize the function of a common plug valve. The second working surface has a decompression and cavitation prevention effect. The multifunctional plug valve can meet the requirements in the fields such as petroleum, chemical industry and hydraulic engineering.
Description
Technical field
The utility model relates to a kind of stopcock, especially relates to a kind of multifunctional rotary plug valve.
Background technique
In various types of valves, stopcock is be most widely used a kind of.Stopcock refers to that closure member is around a kind of valve of the axis rotation realization opening and closing process of valve body lumen.On pipeline, it is mainly used in cut-out, distributes and changes the media flow direction.Advantage such as that stopcock has is simple in structure, keying is rapid, easy to operate, fluid resistance is little.
In oil, gas exploitation course and on the transfer line of oil, rock gas, product oil, in hydraulic engineering, all be extensive use of.
Simultaneously, stopcock also has some such as the shortcoming of function singleness, only can play circulation and block effect; And during the little aperture of stopcock, because flow-passing surface is less, cause medium overcurrent speed bigger, the local jet that forms can cause cavitation phenomenon, causes the damage of spool, thereby reduces the life-span of valve.Often open and close at needs, and operating mode rugged environment comparatively, in high temperature and high pressure condition, the damage of cavitation is just even more serious, and the use of valve has been caused great challenge safely.And the function diversification of valve also is the new trend of present valve industry development.Therefore, just be of great practical significance for a kind of multi-functional anti-cavitation stopcock of development.
Summary of the invention
In order to overcome the unification of stopcock function in the background technique, the purpose of this utility model is to provide a kind of stopcock with multi-functional spool, thereby realizes the multifunction of valve.
The technical solution adopted in the utility model is:
The utility model comprises driving mechanism, valve rod, valve gap, pressing plate, spool, valve body; The driving mechanism rotating shaft drives the spool rotation through valve rod.Described spool circumferentially is evenly equipped with two working surfaces and two sealing surfaces of cross-distribution, and spool is formed the rotary seal pair with the hard sealing anchor ring that is welded on the inner outlet edge of stopcock; Have through hole on working surface of spool; The inside and outside circle of another working surface of spool has one group of measure-alike interlaced straight trough, and interior straight trough and outer straight trough connect by inner circular arc cavity.
Straight trough is the circular arc straight trough, central angle is 6-8 °, straight trough and adjacent outer straight trough are 6-8 ° at interval in adjacent, the straight trough height is 1.1D, straight trough lower limb and outlet lower edge are in same horizontal plane, and the circular arc housing depth is 1.1D, and circular arc chamber lower limb and straight trough lower edge are in same horizontal plane, circular arc cavity central angle is 90 °, and D is a through-hole diameter on the working surface.
The beneficial effect that the utlity model has is:
The utlity model has the function of stopcock, valve close with the Open valve process in, by rotatablely moving, realize being communicated with and blocking of working surface and outlet.In addition, many face structures can be so that the stopcock functional diversities, first working surface can realize that common stopcock has function.Second working surface also has the effect of the anti-cavitation of decompression.The utility model can satisfy the demand in fields such as oil, chemical industry and water conservancy.
Description of drawings
Fig. 1 is the structural representation of multifunctional rotary plug valve.
Fig. 2 is a working surface three-dimensional structure of the spool schematic representation among Fig. 1.
Fig. 3 is another working surface three-dimensional structure schematic representation of spool among Fig. 1.
Fig. 4 is the A-A sectional view of Fig. 1 spool.
Among the figure: 1, actuator, 2, valve rod, 3, valve gap, 4, pressing plate, 5, spool, 6, valve body.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, comprise driving mechanism 1, valve rod 2, valve gap 3, pressing plate 4, spool, valve body 6; Driving mechanism 1 rotating shaft drives the spool rotation through valve rod 2.Described spool 5 circumferentially is evenly equipped with two working surfaces and two sealing surfaces of cross-distribution, and spool is formed the rotary seal pair with the hard sealing anchor ring that is welded on the inner outlet edge of stopcock; Have through hole on working surface of spool; The inside and outside circle of another working surface of spool has one group of measure-alike interlaced straight trough, and interior straight trough and outer straight trough connect by inner circular arc cavity.
Straight trough is the circular arc straight trough, central angle is 6-8 °, straight trough and adjacent outer straight trough are 6-8 ° at interval in adjacent, the straight trough height is 1.1D, straight trough lower limb and outlet lower edge are in same horizontal plane, and the circular arc housing depth is 1.1D, and circular arc chamber lower limb and straight trough lower edge are in same horizontal plane, circular arc cavity central angle is 90 °, and D is a through-hole diameter on the working surface.
Working principle of the present utility model is:
When valve gradually in the opening process, when first working surface was in running order, fluid was by first working surface, realized the circulation of stopcock with by function.When second working surface was in running order, fluid was by before the valve, and fluid is earlier by interior straight trough, through the circular arc cavity is flowed through again outside during straight trough, can be because the cross structure of straight trough, and reduction rate of flow of fluid and pressure, thus play the shunting decompression effect.Can replace reduction valve to a certain extent, and reduce the generation of valve cavitation, thereby increase the working life of valve and since the noise of valve greatly since cavitation cause, so the utility model can also reduce noise to a certain extent.
The utility model is intended to solve the shortcoming of modern stopcock function singlenessization by designing a kind of many working surfaces valve core structure.Take full advantage of the shunting decompression principle of straight trough and the multifunctional rotary plug valve of working surface sealing surface alternating structure, improved the using scope of stopcock.
Claims (2)
1. a multifunctional rotary plug valve comprises driving mechanism, valve rod, valve gap, pressing plate, spool, valve body; The driving mechanism rotating shaft drives the spool rotation through valve rod, and it is characterized in that: described spool circumferentially is evenly equipped with two working surfaces and two sealing surfaces of cross-distribution, and spool is formed the rotary seal pair with the hard sealing anchor ring that is welded on the inner outlet edge of stopcock; Have through hole on working surface of spool; The inside and outside circle of another working surface of spool has one group of measure-alike interlaced straight trough, and interior straight trough and outer straight trough connect by inner circular arc cavity.
2. a kind of multifunctional rotary plug valve according to claim 1, it is characterized in that: described straight trough is the circular arc straight trough, central angle is 6-8 °, straight trough and adjacent outer straight trough are 6-8 ° at interval in adjacent, and the straight trough height is 1.1D, and straight trough lower limb and outlet lower edge are in same horizontal plane, the circular arc housing depth is 1.1D, circular arc chamber lower limb and straight trough lower edge are in same horizontal plane, and circular arc cavity central angle is 90 °, and D is a through-hole diameter on the working surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320143640 CN203131087U (en) | 2013-03-27 | 2013-03-27 | Multifunctional plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320143640 CN203131087U (en) | 2013-03-27 | 2013-03-27 | Multifunctional plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131087U true CN203131087U (en) | 2013-08-14 |
Family
ID=48939067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320143640 Expired - Lifetime CN203131087U (en) | 2013-03-27 | 2013-03-27 | Multifunctional plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195941A (en) * | 2013-03-27 | 2013-07-10 | 浙江理工大学 | Multifunctional plug valve |
-
2013
- 2013-03-27 CN CN 201320143640 patent/CN203131087U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195941A (en) * | 2013-03-27 | 2013-07-10 | 浙江理工大学 | Multifunctional plug valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130814 Effective date of abandoning: 20160217 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |