CN210484786U - Hemispherical throttling orifice plate for valve - Google Patents
Hemispherical throttling orifice plate for valve Download PDFInfo
- Publication number
- CN210484786U CN210484786U CN201921052571.4U CN201921052571U CN210484786U CN 210484786 U CN210484786 U CN 210484786U CN 201921052571 U CN201921052571 U CN 201921052571U CN 210484786 U CN210484786 U CN 210484786U
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- valve
- orifice plate
- flow passage
- hemispherical
- passage surface
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Abstract
The utility model relates to a flow control device. The hemispherical orifice plate for the valve has the characteristics of simple structure, convenience in installation and small abrasion to a valve body. The technical scheme is as follows: hemisphere face orifice plate for valve, its characterized in that: the orifice plate comprises a circular plate body, wherein a flow passage surface which bulges towards one side is arranged in the middle of the plate body, and a plurality of flow passage holes are arranged on the flow passage surface.
Description
Technical Field
The utility model relates to a flow control device specifically is a hemisphere surface orifice plate.
Background
The valve is an important flow regulation control device, can be used for opening and closing pipelines, controlling flow direction, regulating and controlling conveying media, is mainly divided into a shut-off valve, a check valve, a regulating valve and the like, and is widely used in high-temperature and high-pressure fields such as power stations, metallurgy, petrifaction and the like. The orifice plate is mainly used for regulating pressure of fluid, and the resistance of the orifice plate is used for reducing the pressure of the fluid.
However, the existing orifice plate is of a flat plate structure, and because the number of the flow passage holes arranged in the middle of the orifice plate is limited, a certain pressure difference exists between two sides of the orifice plate, and fluid can impact the orifice plate when passing through the orifice plate, so that larger vibration is generated; meanwhile, the decompressed fluid directly erodes the inner cavity of the valve body, so that the valve body is worn in advance, and the service life of the valve is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the above-mentioned background art, provide a hemispherical orifice plate for valve, this orifice plate should have simple structure, simple to operate, to the little characteristics of valve body wearing and tearing.
The technical scheme of the utility model is that:
hemisphere face orifice plate for valve, its characterized in that: the orifice plate comprises a circular plate body, wherein a flow passage surface which bulges towards one side is arranged in the middle of the plate body, and a plurality of flow passage holes are arranged on the flow passage surface.
The flow passage surface is semispherical.
The utility model has the advantages that:
the utility model discloses install in valve import position, need not change valve structure, the dismouting is very convenient to the orifice is arranged on the orifice plate of hemisphere, thereby has increased the quantity of orifice face sum orifice, has reduced the pressure differential of both sides around the orifice plate, and the fluid can get into the valve inner chamber with more even mode after passing through the orifice plate, and distribution range is bigger, makes pressure more steady, has reduced the valve vibration widely.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic diagram of the right-side view structure of the present invention.
Fig. 3 is a schematic view of the installation of the present invention.
Detailed Description
The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following embodiments.
As shown in fig. 1, the hemispherical orifice plate for the valve comprises a circular plate body 1, wherein the middle part of the plate body is a flow passage surface 1.1 bulging towards one side, the radius of the flow passage surface is 40-300mm, the flow passage surface is hemispherical, the spherical center of the hemispherical surface is positioned at the center of the plate body, and a plurality of flow passage holes 1.2 are arranged on the flow passage surface. The sizes of the flow passage surface and the flow passage hole are determined according to the caliber of the valve and specific requirements. The runner surface can be made of a stainless steel plate by stamping, and the runner hole is formed by punching.
As shown in fig. 3, the existing valve includes a valve body 2, an inlet 2.1 and an outlet 2.2 are provided on the valve body, a valve cover 3 is provided on the top of the valve body, a power mechanism 4 is provided on the valve cover, a valve seat 2.3 is provided in the inner cavity of the valve body, a valve rod 5 is axially slidably positioned in the valve body and driven by the power mechanism to axially lift, and a valve core 5.1 matched with the valve seat is provided on the valve rod.
The utility model discloses install in the notch 2.11 of valve body import, the runner face on the orifice plate is towards the valve body inner chamber, and the ring position 1.3 accessible bolt or the welding of plate body outer lane are fixed with the valve. The utility model is applicable to a pressure reducing valve and a regulating valve, and has a larger range of designed flow holes compared with the common plane orifice plate; under the condition of the same pressure difference, the throttling and pressure reducing grade range is wider, and the throttling and pressure reducing valve is suitable for valves with the calibers of DN64mm-DN500mm and the pressure of PN1.6MPa-PN20 MPa.
Claims (2)
1. Hemisphere face orifice plate for valve, its characterized in that: the orifice plate comprises a circular plate body (1), wherein a flow passage surface (1.1) bulging out towards one side is arranged in the middle of the plate body, and a plurality of flow passage holes (1.2) are arranged on the flow passage surface.
2. The hemispherical orifice plate for a valve of claim 1, wherein: the flow passage surface is semispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921052571.4U CN210484786U (en) | 2019-07-08 | 2019-07-08 | Hemispherical throttling orifice plate for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921052571.4U CN210484786U (en) | 2019-07-08 | 2019-07-08 | Hemispherical throttling orifice plate for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484786U true CN210484786U (en) | 2020-05-08 |
Family
ID=70531487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921052571.4U Active CN210484786U (en) | 2019-07-08 | 2019-07-08 | Hemispherical throttling orifice plate for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484786U (en) |
-
2019
- 2019-07-08 CN CN201921052571.4U patent/CN210484786U/en active Active
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