CN210674446U - Hemispherical throttle orifice plate with filter screen for valve - Google Patents
Hemispherical throttle orifice plate with filter screen for valve Download PDFInfo
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- CN210674446U CN210674446U CN201921058674.1U CN201921058674U CN210674446U CN 210674446 U CN210674446 U CN 210674446U CN 201921058674 U CN201921058674 U CN 201921058674U CN 210674446 U CN210674446 U CN 210674446U
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- filter screen
- valve
- plate body
- orifice plate
- hemispherical
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Abstract
The utility model relates to a flow control device. The hemispherical throttling orifice plate with the filter screen for the valve has the advantages of being simple in structure, convenient to install and maintain and small in valve body abrasion. The technical scheme is as follows: the valve is with taking filter screen hemisphere throttle orifice plate, its characterized in that: the throttling orifice plate comprises a circular plate body, wherein a flow passage surface bulging out from the right side of the plate body is arranged in the middle of the plate body, a filter screen which is suitable for the shape of the plate body is arranged on the left side of the plate body, and a filtering surface bulging out from the right side of the filter screen is arranged in the middle of the filter screen.
Description
Technical Field
The utility model relates to a flow control device specifically is a take filter screen hemisphere throttle 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 valves are usually equipped with an orifice plate and a filter, which have the following disadvantages:
the existing orifice plates are of flat plate structures, and because the fluid after pressure reduction directly erodes the inner cavity of the valve body, the valve body is easily abraded in advance, and the service life of the valve is influenced. And the front end of the valve is usually equipped with a special filter, and particularly for the sleeve type valve, the filter is easy to block if not used, so that operation failure is caused, and the use cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the above-mentioned background art, provide a valve with taking filter screen hemisphere face orifice plate, this orifice plate should have simple structure, installation and maintenance convenience, to the little characteristics of valve body wearing and tearing.
The technical scheme of the utility model is that:
the valve is with taking filter screen hemisphere throttle orifice plate, its characterized in that: the throttling orifice plate comprises a circular plate body, wherein a flow passage surface bulging out from the right side of the plate body is arranged in the middle of the plate body, a filter screen which is suitable for the shape of the plate body is arranged on the left side of the plate body, and a filtering surface bulging out from the right side of the filter screen is arranged in the middle of the filter screen.
The filtering surface is fully distributed with filtering holes, and the flow passage surface is provided with a plurality of flow passage holes.
The flow passage surface and the filtering surface are both hemispherical surfaces.
The utility model has the advantages that:
the utility model discloses install in the valve import position, can save the filter of installing in the valve front end, avoided changing the valve structure, the dismouting maintenance is very convenient, and the orifice arranges on the orifice plate of hemisphere face, thereby increased orifice plate area fluid can get into the valve inner chamber in a more even mode after passing through the orifice plate, distribution range is bigger, makes pressure more steady, has reduced the valve vibration widely; meanwhile, the filter screen plays roles of filtering, throttling, regulating and reducing pressure, the use cost is reduced, the advantage of one valve with multiple functions is obtained, and the use effect can be improved if the filter screen is matched with a sleeve type regulating valve for use.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic view of the structure of the middle plate body of the present invention.
Fig. 3 is a schematic diagram of the right-side view structure of the present invention.
Fig. 4 is a right-side view structure diagram of the middle plate body of the present invention.
Fig. 5 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 throttle orifice plate with a filter screen for the valve comprises a circular plate body 1 and a circular filter screen. The middle part of the plate body is a flow passage surface 1.1 bulging to the right side (the right side in figures 3 and 4) of the plate body, the radius of the flow passage surface is 40-300mm, the flow passage surface is hemispherical, the spherical center of the hemispherical shape is positioned at the center of the plate body, and a plurality of flow passage holes 3 are arranged on the flow passage surface. The shape of filter screen is fit for with the shape of plate body, and the filter screen pastes the surface at the plate body closely, and the middle part of filter screen is equipped with the filtering surface 1.4 that swells toward the filter screen right side (the right side of fig. 3 and 4), and the shape of filtering surface is the hemisphere face shape, is covered with on the filtering surface and crosses the filtration hole.
The sizes of the flow passage surface, the flow passage hole, the filtering surface and the filtering hole are determined according to the caliber of the valve and specific requirements. The plate body and the filter screen can be made by stamping a stainless steel plate, and the flow passage holes and the filter holes are formed by punching.
As shown in fig. 5, 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 notch 2.11 of valve body import, the throttling surface on the orifice plate is towards the valve body inner chamber, and the ring position 1.3 of plate body outer lane and the ring position 1.5 accessible bolt or the welding of filter screen outer lane are fixed with the valve. The utility model discloses it is applicable on relief pressure valve and governing valve, bigger than the design runner hole scope of the plane orifice plate commonly used, throttle and step-down grade scope are wider, applicable in the bore for DN50mm-DN500mm and pressure for PN1.6MPa-PN15 MPa's valve.
Claims (3)
1. The valve is with taking filter screen hemisphere throttle orifice plate, its characterized in that: the throttling orifice plate comprises a circular plate body (1), wherein a flow passage surface (1.1) bulging out from the right side of the plate body is arranged in the middle of the plate body, a filter screen which is suitable for the shape of the plate body is arranged on the left side of the plate body, and a filter surface (1.4) bulging out from the right side of the filter screen is arranged in the middle of the filter screen.
2. The hemispherical orifice plate with the filter screen for the valve according to claim 1, characterized in that: the filtering surface is fully distributed with filtering holes, and the flow passage surface is provided with a plurality of flow passage holes (1.2).
3. The hemispherical orifice plate with the filter screen for the valve according to claim 2, characterized in that: the flow passage surface and the filtering surface are both hemispherical surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921058674.1U CN210674446U (en) | 2019-07-08 | 2019-07-08 | Hemispherical throttle orifice plate with filter screen for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921058674.1U CN210674446U (en) | 2019-07-08 | 2019-07-08 | Hemispherical throttle orifice plate with filter screen for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210674446U true CN210674446U (en) | 2020-06-05 |
Family
ID=70892103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921058674.1U Active CN210674446U (en) | 2019-07-08 | 2019-07-08 | Hemispherical throttle orifice plate with filter screen for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210674446U (en) |
-
2019
- 2019-07-08 CN CN201921058674.1U patent/CN210674446U/en active Active
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