CN220850136U - Multistage pressure relief orifice plate - Google Patents
Multistage pressure relief orifice plate Download PDFInfo
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- CN220850136U CN220850136U CN202322528188.4U CN202322528188U CN220850136U CN 220850136 U CN220850136 U CN 220850136U CN 202322528188 U CN202322528188 U CN 202322528188U CN 220850136 U CN220850136 U CN 220850136U
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- pressure relief
- pressure
- orifice plate
- plate body
- plate
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- 239000011148 porous material Substances 0.000 claims description 14
- 239000012530 fluid Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model discloses a multistage pressure relief orifice plate, which relates to the technical field of pressure relief plates and solves the technical problems that the flow rate of a warm pump cannot be controlled and the pressure of a warm pump medium from a high-pressure pipeline is reduced in the prior art.
Description
Technical Field
The utility model relates to the technical field of pressure relief plates, in particular to a multistage pressure relief orifice plate.
Background
For a multistage high-pressure centrifugal pump with medium temperature higher than 150 ℃ and higher outlet pressure, the pump needs to be warmed before the on-site centrifugal pump runs to ensure that the moving and static parts are heated uniformly (because the gap between the moving and static parts is very small, the diameter gap is about 0.45mm, the leakage is small, and the pump set is efficient)
In order to ensure stable and reliable operation of the pump set, the pump is warmed by leading high-pressure medium from a high-pressure pipeline, the flow rate of the warmed pump is small, the time of the warmed pump is long, and the pressure cannot be too high (the rotor can be flushed on the side of the pump), so that the pressure of the warmed pump medium is required to be reduced, the flow rate is reduced, and a multi-stage pressure relief pore plate is adopted.
The pressure relief orifice plate is used for reducing the flow rate of fluid or reducing the pressure of fluid, the pressure drop is generated when the fluid passes through the orifice plate, the flow rate passing through the orifice plate is increased along with the increase of the pressure drop, but when the pressure drop exceeds a certain value, namely exceeds the critical pressure drop, the flow rate maintains a certain value and does not increase any more no matter how the outlet pressure is reduced, and the pressure relief orifice plate is used for limiting the flow rate of fluid or reducing the pressure of fluid according to the principle.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a multistage pressure relief pore plate, which solves the technical problems that the flow of a warm pump cannot be controlled and the pressure of a warm pump medium from a high-pressure pipeline cannot be reduced in the prior art.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a multistage pressure release orifice plate, includes orifice plate body, pressure release board, intermediate tube, a serial communication port, the intermediate tube is connected in pressure release board both ends, the pressure release board is installed between intermediate tube and orifice plate body, pressure release board, orifice plate body, intermediate tube place axis collineation, multistage pressure release orifice plate can realize the control to fluid flow and pressure through the quantity of adjustment pressure release board, through increasing or reducing the quantity of pressure release board, can adjust fluidic flow and pressure in a flexible way to satisfy the demand under the different operating modes.
Preferably, the orifice plate body is hollow body, the spread groove has been seted up to orifice plate body one end, be provided with the shutoff board in the orifice plate body, the through-hole has been seted up on the shutoff board, the conical surface chamfer has been seted up outward to orifice plate body other end, the installation circular slot has been seted up in the orifice plate body other end.
Preferably, the pressure relief plate is a circular plate body, three pressure relief holes are formed in the pressure relief plate, and the three pressure relief holes are identical in size and are arranged in the same circle at 120-degree intervals adjacent to the central axis of the pressure relief plate.
Preferably, the middle pipe is a cylindrical pipe body, conical surface chamfers are formed at two ends of the middle pipe, and mounting round grooves are formed at two ends of the middle pipe.
Advantageous effects
The utility model provides a multistage pressure relief pore plate, which has the advantages of relatively simple pressure relief structure, easiness in production and processing, fewer processing procedures, low manufacturing cost, convenience and simplicity in installation and the like, and the pressure relief pore plate is used for limiting the flow or reducing the pressure by replacing a regulating valve on the premise of meeting the requirements of reducing the medium pressure and the flow of a warm pump, so that the production and manufacturing cost and the operation and maintenance cost can be greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of a multi-stage pressure relief orifice plate according to the present utility model.
Fig. 2 is a schematic structural view of the intermediate pipe according to the present utility model.
Fig. 3 is a schematic structural view of the intermediate pipe according to the present utility model.
Fig. 4 is a schematic structural diagram of the orifice plate body according to the present utility model.
Fig. 5 is a schematic structural view of the pressure relief plate according to the present utility model.
In the figure: 1. a hole plate body; 2. a pressure relief plate; 3. a middle tube;
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a multistage pressure release orifice plate, includes orifice plate body 1, pressure release board 2, middle pipe 3, a serial communication port, middle pipe 3 is connected in pressure release board 2 both ends, pressure release board 2 is installed between middle pipe 3 and orifice plate body 1, pressure release board 2, orifice plate body 1, the axis collineation that middle pipe 3 is located, multistage pressure release orifice plate can realize the control to fluid flow and pressure through the quantity of adjustment pressure release board 2, through increasing or reducing the quantity of pressure release board 2, can adjust the flow and the pressure of fluid in a flexible way to satisfy the demand under the different operating modes.
The embodiment is further configured in that the orifice plate body 1 is a hollow pipe body, a connecting groove is formed in one end of the orifice plate body 1, a plugging plate is arranged in the orifice plate body 1, a through hole is formed in the plugging plate, a conical surface chamfer is formed in the other end of the orifice plate body 1, the conical surface chamfer is used for reliable welding, and an installation circular groove is formed in the other end of the orifice plate body 1 and used for installing the pressure relief plate 2.
The embodiment is further configured in that the pressure relief plate 2 is a circular plate body, three pressure relief holes are formed in the pressure relief plate 2, the pressure relief holes are identical in size and are arranged in the same circle at 120-degree intervals adjacent to the central axis of the pressure relief plate 2, and the pressure relief holes are used for pressure relief of fluid.
The embodiment is further configured in that the middle pipe 3 is a cylindrical pipe body, conical surface chamfers are formed at two ends of the middle pipe, the conical surface chamfers are used for reliable welding, and mounting round grooves are formed at two ends of the middle pipe 3 and used for mounting the pressure release plate 2.
The detailed connection means are known in the art, and the following mainly describes the working principle and process, and the specific work is as follows.
Examples: as shown in fig. 1-5, the number of the pressure relief plates 2 can be adjusted according to the pressure condition according to the requirement, the pressure relief plates 2 are arranged between the orifice plate body 1 and the middle pipe 3, and the gap between the middle pipe 3 and the orifice plate body 1 is sealed by welding.
The fluid flows out from the orifice plate body 1 at the other end through the multi-layer pressure relief plate 2 after passing through the orifice plate body 1, and the other principle is that the flow of the multi-layer pressure relief orifice plate increases along with the increase of pressure drop, but when the pressure drop exceeds a certain value (critical pressure drop), the flow maintains a certain value and does not increase any more. This feature allows the pressure relief orifice to restrict the flow of fluid or reduce the pressure of fluid and maintain a relatively stable flow over a range.
The multistage pressure relief pore plate adopts a plurality of pressure relief holes which are arranged in a same circle at 120-degree intervals adjacent to the central axis of the circular plate body. The multistage design can increase the flow regulation scope of pressure relief orifice plate, improves the precision and the stability of regulation, and the evenly arranged pressure relief hole is favorable to improving the stress distribution of equipment even, prevents to reveal.
The multistage pressure relief pore plate consists of a pore plate body 1, a pressure relief plate 2 and a middle pipe 3, which are arranged on the same axis in a collinear way. The orifice plate body 1 is a hollow pipe body, the pressure relief plate 2 is a circular plate body, and the middle pipe 3 is a cylindrical pipe body. This simple structural design makes the multistage pressure relief orifice plate easy to manufacture, install and maintain.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Claims (4)
1. The utility model provides a multistage pressure release orifice plate, includes orifice plate body (1), pressure release board (2), intermediate tube (3), its characterized in that, intermediate tube (3) are connected in pressure release board (2) both ends, pressure release board (2) are installed between intermediate tube (3) and orifice plate body (1), the axis collineation at pressure release board (2), orifice plate body (1), intermediate tube (3) place.
2. The multistage pressure relief pore plate according to claim 1, wherein the pore plate body (1) is a hollow pipe body, a connecting groove is formed in one end of the pore plate body (1), a plugging plate is arranged in the pore plate body (1), a through hole is formed in the plugging plate, a conical surface chamfer is formed in the outer side of the other end of the pore plate body (1), and a mounting round groove is formed in the other end of the pore plate body (1).
3. The multi-stage pressure relief orifice plate according to claim 1, wherein the pressure relief plate (2) is a circular plate body, three pressure relief holes are formed in the pressure relief plate (2), and the three pressure relief holes are identical in size and are arranged in a same circle at 120-degree intervals adjacent to the central axis of the pressure relief plate (2).
4. The multi-stage pressure relief pore plate according to claim 1, wherein the middle pipe (3) is a cylindrical pipe body, conical chamfer angles are formed at two ends of the middle pipe, and mounting round grooves are formed at two ends of the middle pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322528188.4U CN220850136U (en) | 2023-09-18 | 2023-09-18 | Multistage pressure relief orifice plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322528188.4U CN220850136U (en) | 2023-09-18 | 2023-09-18 | Multistage pressure relief orifice plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850136U true CN220850136U (en) | 2024-04-26 |
Family
ID=90779369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322528188.4U Active CN220850136U (en) | 2023-09-18 | 2023-09-18 | Multistage pressure relief orifice plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850136U (en) |
-
2023
- 2023-09-18 CN CN202322528188.4U patent/CN220850136U/en active Active
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