CN211525816U - Reducing eccentric pressure reducing device - Google Patents
Reducing eccentric pressure reducing device Download PDFInfo
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- CN211525816U CN211525816U CN202020140784.9U CN202020140784U CN211525816U CN 211525816 U CN211525816 U CN 211525816U CN 202020140784 U CN202020140784 U CN 202020140784U CN 211525816 U CN211525816 U CN 211525816U
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- eccentric
- pipeline
- orifice plate
- concentric
- orifice
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- 230000004323 axial length Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 abstract description 11
- 239000011343 solid material Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 description 10
- 239000010866 blackwater Substances 0.000 description 5
- 230000008016 vaporization Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 239000003250 coal slurry Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides an eccentric pressure reduction means of reducing, include: the inner diameter of the pipeline is gradually increased along the axial line direction of the inlet end of the pipeline and the outlet end of the pipeline; the concentric orifice plate is arranged in the pipeline, a concentric orifice is arranged on the concentric orifice plate, and the axis of the concentric orifice is collinear with the axis of the pipeline; the eccentric orifice plate is arranged in the pipeline, an eccentric orifice is arranged on the eccentric orifice plate, and the axis of the eccentric orifice is parallel to the axis of the pipeline. The beneficial effects of the utility model are that, adopt the step-down technique of multistage concentric orifice plate and eccentric orifice plate, can will contain solid material and fall to the low pressure by the high pressure, especially to the step-down that contains solid medium, can slow down the wearing and tearing of relief pressure valve.
Description
Technical Field
The utility model relates to a high pressure water coal slurry vaporization field, concretely relates to eccentric pressure reduction means of reducing.
Background
The device in the field of high-pressure coal water slurry vaporization has high operation pressure and operation temperature, high-pressure black water discharged by the vaporization furnace is a solid-containing material, and when the high-pressure black water is subjected to pressure reduction flash evaporation treatment, the pressure difference is large and solid is contained, so that pipelines behind a pressure reducing valve and the valve are seriously abraded. When the high-pressure medium is reduced to low pressure, an inlet pressure reducing valve is generally required to be selected, such as a return line regulating valve of a high-pressure pump outlet, and the like, and the problem of poor linear regulation is easily caused when a domestic pressure reducing valve is selected. In order to reduce the investment and purchase period of an inlet pressure reducing valve, especially for high-pressure solid-containing media such as high-pressure black water discharged by high-pressure coal water slurry vaporization, the pressure reducing valve and a pipeline behind the valve are easily abraded.
SUMMERY OF THE UTILITY MODEL
The utility model provides a reducing eccentric pressure reduction device to reach the purpose that the high pressure contains solid material to carry out the step-down.
The utility model provides a technical scheme that its technical problem adopted is: a reducing eccentric pressure-reducing device comprising: the inner diameter of the pipeline is gradually increased along the axial line direction of the inlet end of the pipeline and the outlet end of the pipeline; the concentric orifice plate is arranged in the pipeline, a concentric orifice is arranged on the concentric orifice plate, and the axis of the concentric orifice is collinear with the axis of the pipeline; the eccentric orifice plate is arranged in the pipeline, an eccentric orifice is arranged on the eccentric orifice plate, and the axis of the eccentric orifice is parallel to the axis of the pipeline.
Furthermore, the reducing eccentric pressure reduction device comprises a concentric pore plate and an eccentric pore plate, and the concentric pore plate is positioned at the rear side of the eccentric pore plate along the axis connecting line direction of the inlet end of the pipeline and the outlet end of the pipeline.
Furthermore, reducing eccentric pressure reduction means includes two concentric orifice plates and polylith eccentric orifice plate, and two concentric orifice plates intervals set up in the pipeline, and polylith eccentric orifice plate interval sets up between two concentric orifice plates.
Furthermore, the concentric hole and the eccentric hole have the same structure, the concentric hole comprises a straight hole section and a taper hole section which are sequentially connected, and the small-diameter end of the taper hole section is connected with the straight hole section.
Further, the concentric orifice plate and the eccentric orifice plate have the same thickness, and the axial length of the conical orifice section is larger than half of the thickness of the concentric orifice plate.
Further, the taper hole section corresponds to an angle of 90 ° to 150 °.
Further, the spacing distance between the concentric orifice plate and the eccentric orifice plate is the same as the inner diameter of the inlet end of the pipe.
Further, the spacing distance between the concentric orifice plates and the adjacent eccentric orifice plates is the same as the inner diameter of the inlet end of the pipeline, and the spacing distance between the adjacent eccentric orifice plates is the same as the inner diameter of the inlet end of the pipeline.
Further, an inlet flange is arranged at the inlet end of the pipeline, an outlet flange is arranged at the outlet end of the pipeline, and the axial distance between the outlet flange and the nearest concentric pore plate is one to three times of the inner diameter of the inlet end of the pipeline.
Further, the outlet end inner diameter of the conduit is greater than twice the inlet end inner diameter of the conduit.
The beneficial effects of the utility model are that, adopt the step-down technique of multistage concentric orifice plate and eccentric orifice plate, can will contain solid material and fall to the low pressure by the high pressure, especially to the step-down that contains solid medium, can slow down the wearing and tearing of relief pressure valve.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a concentric orifice plate;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a cross-sectional view of an eccentric orifice plate;
fig. 5 is a side view of fig. 4.
Reference numbers in the figures: 1. a pipeline; 2. a concentric orifice plate; 21. a concentric bore; 3. an eccentric orifice plate; 31. an eccentric hole; 4. an inlet flange; 5. an outlet flange.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 5, an embodiment of the present invention provides a reducing eccentric pressure reducing device, which includes a pipeline 1, a concentric orifice plate 2 and an eccentric orifice plate 3. The inner diameter of the pipe 1 gradually increases along the axial line direction connecting the inlet end of the pipe 1 and the outlet end of the pipe 1. The concentric orifice plate 2 is arranged in the pipeline 1, the concentric orifice plate 2 is provided with a concentric orifice 21, and the axis of the concentric orifice 21 is collinear with the axis of the pipeline 1. The eccentric orifice plate 3 is arranged in the pipeline 1, an eccentric orifice 31 is arranged on the eccentric orifice plate 3, and the axis of the eccentric orifice 31 is parallel to the axis of the pipeline 1.
The pressure reduction technology of the multistage concentric orifice plate 2 and the eccentric orifice plate 3 is adopted, solid-containing materials can be reduced from high pressure to low pressure, and particularly, the abrasion of a pressure reduction valve can be reduced for the pressure reduction of solid-containing media.
The embodiment can be applied to depressurization of a medium containing solid particles, and the concentric orifice plate 2, the eccentric orifice plate 3 and the inner wall of the pipeline 1 are subjected to wear-resistant treatment, including but not limited to surfacing welding of cobalt-based tungsten carbide and nickel-based tungsten carbide or treatment by adopting an amorphous material.
As shown in fig. 1, the outlet end inner diameter of the pipe 1 is more than twice the inlet end inner diameter of the pipe 1. The pipeline 1 is arranged into the structure shown in figure 1, the purpose is to increase the inner diameter of the pipeline 1, so that the overall flow velocity of the medium is reduced, the purpose of reducing abrasion in pressure reduction is achieved, and the pipeline is particularly suitable for pressure reduction of solid-containing media.
In one embodiment, the reducing eccentric pressure reducing device comprises a concentric orifice plate 2 and an eccentric orifice plate 3, and the concentric orifice plate 2 is positioned at the rear side of the eccentric orifice plate 3 along the axial line direction of the inlet end of the pipeline 1 and the outlet end of the pipeline 1. I.e. an eccentric orifice plate 3 is provided at the inlet side of the pipe 1 and a concentric orifice plate 2 is provided at the outlet of the pipe 1. And the spacing distance between the concentric orifice plate 2 and the eccentric orifice plate 3 is the same as the inner diameter of the inlet end of the pipeline 1.
In another embodiment, the reducing eccentric pressure reduction device comprises two concentric pore plates 2 and a plurality of eccentric pore plates 3, wherein the two concentric pore plates 2 are arranged in the pipeline 1 at intervals, and the plurality of eccentric pore plates 3 are arranged between the two concentric pore plates 2 at intervals. And the spacing distance between the adjacent concentric orifice plates 2 and the eccentric orifice plates 3 is the same as the inner diameter of the inlet end of the pipeline 1, and the spacing distance between the adjacent eccentric orifice plates 3 is the same as the inner diameter of the inlet end of the pipeline 1.
As shown in fig. 2 to 5, the concentric hole 21 and the eccentric hole 31 have the same structure, and the concentric hole 21 includes a straight hole section and a tapered hole section connected in sequence, and the small diameter end of the tapered hole section is connected to the straight hole section. The straight hole section faces the inlet end of the pipeline 1, the taper hole section faces the outlet end of the pipeline 1, and the size of the angle A corresponding to the taper hole section is 90-150 degrees.
The concentric orifice plate 2 has the same thickness D1 as the eccentric orifice plate 3, and the axial length D3 of the conical orifice section is greater than half the thickness D1 of the concentric orifice plate 2. In this embodiment, the diameter of the straight hole section is D2, and the average diameter of the tapered hole section is larger than the diameter D2 of the straight hole section, so that when the medium passes through the concentric hole 21 or the eccentric hole 31, the medium enters the large-diameter hole from the small-diameter hole, which is helpful for reducing the flow rate of the medium and achieving the purpose of pressure reduction.
It should be noted that the thickness D1 of each concentric orifice plate 2 and eccentric orifice plate 3, the diameter D2 of the straight orifice section, and the number of concentric orifice plates 2 and eccentric orifice plates 3 are determined by calculating parameters such as pressure difference and flow rate.
The entry end of pipeline 1 is provided with entry flange 4, and the exit end of pipeline 1 is provided with outlet flange 5, sets up entry flange 4 and outlet flange 5 purpose for the convenience of upstream and downstream pipeline, can wholly change when the damage takes place in this embodiment simultaneously.
The axial distance between the outlet flange 5 and the nearest concentric orifice plate 2 is one to three times the inner diameter of the inlet end of the pipe 1. Of course, the larger the outlet is, the better the outlet is under the condition of allowable installation space and cost, the flow rate can be reduced, and the scouring wear can be reduced.
The embodiment has simple structure, easy processing and easy replacement, and can greatly reduce the pressure difference of the pressure reducing valve, slow down the abrasion of the pressure reducing valve and a downstream pipeline and prolong the service life of a black water pressure reducing system if the pressure reducing valve is arranged at the downstream of the black water pressure reducing valve of the high-pressure coal water slurry vaporizing device.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the pressure reduction technology of the multistage concentric orifice plate 2 and the eccentric orifice plate 3 is adopted, solid-containing materials can be reduced from high pressure to low pressure, and particularly, the abrasion of a pressure reduction valve can be reduced for the pressure reduction of solid-containing media.
The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and the technical scheme, all can the independent assortment use between technical scheme and the technical scheme.
Claims (10)
1. A reducing eccentric pressure reducing device is characterized by comprising:
the pipeline (1) is characterized in that the inner diameter of the pipeline (1) is gradually increased along the axial line direction of the inlet end of the pipeline (1) and the outlet end of the pipeline (1);
the concentric orifice plate (2) is arranged in the pipeline (1), a concentric orifice (21) is arranged on the concentric orifice plate (2), and the axis of the concentric orifice (21) is collinear with the axis of the pipeline (1);
the eccentric orifice plate (3) is arranged in the pipeline (1), an eccentric orifice (31) is arranged on the eccentric orifice plate (3), and the axis of the eccentric orifice (31) is parallel to the axis of the pipeline (1).
2. A reducing eccentric pressure reducing device according to claim 1, wherein the reducing eccentric pressure reducing device comprises a concentric orifice plate (2) and an eccentric orifice plate (3), and the concentric orifice plate (2) is located at the rear side of the eccentric orifice plate (3) in the direction of the axis line of the inlet end of the pipeline (1) and the outlet end of the pipeline (1).
3. A reducing eccentric pressure reducing device according to claim 1, wherein the reducing eccentric pressure reducing device comprises two concentric orifice plates (2) and a plurality of eccentric orifice plates (3), the two concentric orifice plates (2) are arranged in the pipeline (1) at intervals, and the plurality of eccentric orifice plates (3) are arranged between the two concentric orifice plates (2) at intervals.
4. A reducing eccentric pressure reducing device according to claim 1, wherein the concentric hole (21) and the eccentric hole (31) are identical in structure, the concentric hole (21) comprises a straight hole section and a conical hole section which are connected in sequence, and the small diameter end of the conical hole section is connected with the straight hole section.
5. A reducing eccentric pressure reducing device according to claim 4, wherein the concentric orifice plate (2) and the eccentric orifice plate (3) have the same thickness, and the axial length of the conical orifice section is greater than half of the thickness of the concentric orifice plate (2).
6. The eccentric pressure reduction device of claim 4, wherein the taper hole section corresponds to an angle of 90 ° to 150 °.
7. A reducing eccentric pressure reducing device according to claim 2, wherein the distance between the concentric orifice plate (2) and the eccentric orifice plate (3) is the same as the inner diameter of the inlet end of the pipeline (1).
8. A reducing eccentric pressure reducing device according to claim 3, wherein the distance between a concentric orifice plate (2) and an adjacent eccentric orifice plate (3) is the same as the inner diameter of the inlet end of the pipeline (1), and the distance between adjacent eccentric orifice plates (3) is the same as the inner diameter of the inlet end of the pipeline (1).
9. A reducing eccentric pressure reducing device according to claim 1, characterized in that the inlet end of the pipeline (1) is provided with an inlet flange (4), the outlet end of the pipeline (1) is provided with an outlet flange (5), and the axial distance between the outlet flange (5) and the nearest concentric orifice plate (2) is one to three times the inner diameter of the inlet end of the pipeline (1).
10. A reducing eccentric pressure reducing device according to claim 1, characterized in that the outlet end inner diameter of the pipe (1) is more than twice the inlet end inner diameter of the pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020140784.9U CN211525816U (en) | 2020-01-21 | 2020-01-21 | Reducing eccentric pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020140784.9U CN211525816U (en) | 2020-01-21 | 2020-01-21 | Reducing eccentric pressure reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211525816U true CN211525816U (en) | 2020-09-18 |
Family
ID=72459650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020140784.9U Active CN211525816U (en) | 2020-01-21 | 2020-01-21 | Reducing eccentric pressure reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211525816U (en) |
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2020
- 2020-01-21 CN CN202020140784.9U patent/CN211525816U/en active Active
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