CN111173988A - Reduced concentric pressure reducing device - Google Patents
Reduced concentric pressure reducing device Download PDFInfo
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- CN111173988A CN111173988A CN202010069030.3A CN202010069030A CN111173988A CN 111173988 A CN111173988 A CN 111173988A CN 202010069030 A CN202010069030 A CN 202010069030A CN 111173988 A CN111173988 A CN 111173988A
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- Prior art keywords
- concentric
- pipeline
- reducing
- diameter
- orifice plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
- F16K47/16—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths the throttling member being a cone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02709—Throttle passages in the form of perforated plates
- F16L55/02718—Throttle passages in the form of perforated plates placed transversely
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides a reducing concentric pressure reduction device, which comprises: 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 of polylith, the interval sets up in the pipeline, all is provided with concentric hole on every concentric orifice plate, and the axis of every concentric hole and the axis collineation of pipeline, along the axis line direction of the entry end of pipeline and the exit end of pipeline, the diameter of the concentric hole on the concentric orifice plate of polylith increases gradually. The invention has the advantages that the pressure reduction technology of the multi-stage concentric orifice plate is adopted, solid-containing materials can be reduced from high pressure to low pressure, and the abrasion of the pressure reduction valve can be slowed particularly for the pressure reduction of solid-containing media.
Description
Technical Field
The invention relates to the field of high-pressure water coal slurry vaporization, in particular to a reducing concentric depressurization device.
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.
Disclosure of Invention
The invention provides a reducing concentric depressurization device, which aims to achieve the purpose of depressurizing high-pressure solid-containing materials.
The technical scheme adopted by the invention for solving the technical problems is as follows: a reducing concentric pressure reduction 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 of polylith, the interval sets up in the pipeline, all is provided with concentric hole on every concentric orifice plate, and the axis of every concentric hole and the axis collineation of pipeline, along the axis line direction of the entry end of pipeline and the exit end of pipeline, the diameter of the concentric hole on the concentric orifice plate of polylith increases gradually.
Furthermore, the concentric holes comprise a straight hole section and a taper hole section which are connected in sequence, and the small-diameter end of the taper hole section is connected with the straight hole section.
Further, the axial length of the tapered bore section is greater than half the thickness of the concentric orifice plates.
Further, the taper hole section corresponds to an angle of 90 ° to 150 °.
Furthermore, the diameter of the inlet end of the pipeline is d1, the distance between two adjacent concentric orifice plates is d2, and d2 is more than or equal to d1 and less than or equal to 2d 1.
Furthermore, the diameter of the inlet end of the pipeline is d1, the diameter of the outlet end of the pipeline is d3, and d1 is more than d3 and less than or equal to 3d 1.
Further, an inlet flange is arranged at the inlet end of the pipeline, and an outlet flange is arranged at the outlet end of the pipeline.
Further, the axial distance between the outlet flange and the nearest concentric orifice plate is one to three times the diameter of the inlet end of the pipe.
Furthermore, the pipeline and the plurality of concentric pore plates are both made of stainless steel.
Further, the pipe and the plurality of concentric orifice plates are subjected to abrasion resistant treatment.
The invention has the advantages that the pressure reduction technology of the multi-stage concentric orifice plate is adopted, solid-containing materials can be reduced from high pressure to low pressure, and the abrasion of the pressure reduction valve can be slowed particularly for the pressure reduction of solid-containing media.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, 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.
Reference numbers in the figures: 1. a pipeline; 2. a concentric orifice plate; 21. a concentric bore; 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 embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, an embodiment of the present invention provides a reducing concentric pressure reducing device, which includes a pipe 1 and a plurality of concentric orifice plates 2. 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 interval of the concentric orifice plates 2 of the polylith sets up in the pipeline 1, all is provided with concentric hole 21 on every concentric orifice plate 2, and the axis of every concentric hole 21 and the axis collineation of pipeline 1, along the axis line direction of the entry end of pipeline 1 and the exit end of pipeline 1, the diameter of the concentric hole 21 on the concentric orifice plates 2 of the polylith increases gradually.
The pressure reduction technology of the multistage concentric orifice plate 2 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 pipeline 1 and the plurality of concentric orifice plates 2 are both made of stainless steel materials. Both the pipe 1 and the plurality of concentric orifice plates 2 are subjected to wear resistant treatments including, but not limited to, bead welding of cobalt-based tungsten carbide, nickel-based tungsten carbide, or treatment with amorphous materials.
Furthermore, along the axis connecting line direction of the inlet end of the pipeline 1 and the outlet end of the pipeline 1, the diameters of the concentric holes 21 on the plurality of concentric hole plates 2 are gradually increased, so that the flow area is gradually increased when a medium flows along the flow direction (arrow direction in fig. 1), the flow speed can also be effectively reduced, and the purpose of reducing the pressure is achieved.
The concentric hole 21 comprises a straight hole section and a taper hole section which are connected in sequence, and the small-diameter end of the taper hole section is connected with 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 axial length D3 of the conical bore 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, the medium enters the large-diameter hole from the small-diameter hole, which is helpful to reduce the flow rate of the medium and achieve the purpose of pressure reduction.
It should be noted that the thickness D1 of each concentric orifice plate 2, the diameter D2 of the straight orifice section, and the number of the concentric orifice plates 2 are determined by calculation according to parameters such as pressure difference and flow rate.
The diameter of the inlet end of the pipeline 1 is d1, the distance between two adjacent concentric orifice plates 2 is d2, and d2 is more than or equal to d1 and less than or equal to 2d 1.
The diameter of the outlet end of the pipeline 1 is d3, and d1 is more than d3 and less than or equal to 3d 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.
As shown in fig. 1, the inlet end of the pipe 1 is provided with an inlet flange 4 and the outlet end of the pipe 1 is provided with an outlet flange 5. The axial distance between the outlet flange 5 and the nearest concentric orifice plate 2 is one to three times of the diameter of the inlet end of the pipeline 1, and the larger the outlet is, the better the outlet is, the flow speed can be reduced, and the scouring wear can be reduced under the conditions of allowable installation space and allowable cost.
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-described embodiments of the present invention achieve the following technical effects: the pressure reduction technology of the multi-stage concentric orifice plate is adopted, solid materials can be reduced from high pressure to low pressure, and particularly, the abrasion of the pressure reduction valve can be reduced for the pressure reduction of solid media.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features, the technical schemes and the technical schemes can be freely combined and used.
Claims (10)
1. A reducing concentric pressure reduction device, 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 of polylith (2), the interval sets up in pipeline (1), all is provided with concentric hole (21) on every concentric orifice plate (2), and the axis of every concentric hole (21) and the axis collineation of pipeline (1), along the axis line direction of the entry end of pipeline (1) and the exit end of pipeline (1), the diameter of the concentric hole (21) on the concentric orifice plate of polylith (2) increases gradually.
2. A reducing concentric pressure reducing device according to claim 1, characterized in that the concentric holes (21) comprise a straight hole section and a conical hole section connected in series, the small diameter end of the conical hole section being connected to the straight hole section.
3. A reducing concentric pressure drop arrangement according to claim 2, wherein the axial length of the conical bore section is greater than half the thickness of the concentric orifice plate (2).
4. A reducing concentric pressure reducing device according to claim 2, wherein the conical bore section corresponds to an angle of 90 ° to 150 °.
5. A reducing concentric pressure reducing device according to claim 1, wherein the diameter of the inlet end of the pipeline (1) is d1, the distance between two adjacent concentric orifice plates (2) is d2, and d1 is less than or equal to d2 is less than or equal to 2d 1.
6. A reducing concentric pressure reducing device according to claim 1, wherein the diameter of the inlet end of the pipe (1) is d1, and the diameter of the outlet end of the pipe (1) is d3, so that d1 < d3 ≦ 3d 1.
7. A reducing concentric pressure reducing arrangement according to claim 1, characterized in that the inlet end of the pipe (1) is provided with an inlet flange (4) and the outlet end of the pipe (1) is provided with an outlet flange (5).
8. A reducing concentric pressure reducing arrangement according to claim 7, characterized in that the axial distance between the outlet flange (5) and the nearest concentric orifice plate (2) is one to three times the diameter of the inlet end of the pipe (1).
9. A concentric pressure reducing device according to claim 1, wherein the pipe (1) and the plurality of concentric orifice plates (2) are made of stainless steel.
10. Reducing concentric pressure reduction device according to claim 8, wherein both the pipe (1) and the plurality of concentric orifice plates (2) are treated to resist wear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069030.3A CN111173988A (en) | 2020-01-21 | 2020-01-21 | Reduced concentric pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069030.3A CN111173988A (en) | 2020-01-21 | 2020-01-21 | Reduced concentric pressure reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111173988A true CN111173988A (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010069030.3A Withdrawn CN111173988A (en) | 2020-01-21 | 2020-01-21 | Reduced concentric pressure reducing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111173988A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116730471A (en) * | 2023-05-17 | 2023-09-12 | 山东师范大学 | Reaction device for high-salt high-COD wastewater treatment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB694370A (en) * | 1949-09-02 | 1953-07-22 | Ljungstroms Angturbin Ab | A device for silencing sound in a gaseous medium |
| US20100252768A1 (en) * | 2007-11-26 | 2010-10-07 | Cameron International Corporation | Control valve trim |
| CN102788216A (en) * | 2012-07-24 | 2012-11-21 | 北京国电富通科技发展有限责任公司 | Water distribution pipeline of converter valve |
| CN204403662U (en) * | 2014-12-11 | 2015-06-17 | 上海新业锅炉高科技有限公司 | Multistage orifice plate decompressor |
| CN205908862U (en) * | 2015-04-02 | 2017-01-25 | 费希尔控制产品国际有限公司 | A mode attenuator for reducing mode attenuator of noise in process system with have form in cross -section of expansion |
| CN207435475U (en) * | 2017-11-23 | 2018-06-01 | 中冶华天南京工程技术有限公司 | A kind of blast furnace gas expenditure and pressure device |
| CN209385075U (en) * | 2018-12-24 | 2019-09-13 | 陕西延长石油（集团）有限责任公司油煤新技术开发公司 | A kind of multilevel decompression pipe nipple under the conditions of High Pressure Difference |
| CN211667259U (en) * | 2020-01-21 | 2020-10-13 | 北京石油化工工程有限公司 | Reducing concentric pressure reducing device |
-
2020
- 2020-01-21 CN CN202010069030.3A patent/CN111173988A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB694370A (en) * | 1949-09-02 | 1953-07-22 | Ljungstroms Angturbin Ab | A device for silencing sound in a gaseous medium |
| US20100252768A1 (en) * | 2007-11-26 | 2010-10-07 | Cameron International Corporation | Control valve trim |
| CN102788216A (en) * | 2012-07-24 | 2012-11-21 | 北京国电富通科技发展有限责任公司 | Water distribution pipeline of converter valve |
| CN204403662U (en) * | 2014-12-11 | 2015-06-17 | 上海新业锅炉高科技有限公司 | Multistage orifice plate decompressor |
| CN205908862U (en) * | 2015-04-02 | 2017-01-25 | 费希尔控制产品国际有限公司 | A mode attenuator for reducing mode attenuator of noise in process system with have form in cross -section of expansion |
| CN207435475U (en) * | 2017-11-23 | 2018-06-01 | 中冶华天南京工程技术有限公司 | A kind of blast furnace gas expenditure and pressure device |
| CN209385075U (en) * | 2018-12-24 | 2019-09-13 | 陕西延长石油（集团）有限责任公司油煤新技术开发公司 | A kind of multilevel decompression pipe nipple under the conditions of High Pressure Difference |
| CN211667259U (en) * | 2020-01-21 | 2020-10-13 | 北京石油化工工程有限公司 | Reducing concentric pressure reducing device |
Non-Patent Citations (1)
| Title |
|---|
| 李旭东等: "大压降管路节流特性分析及孔板优化设计", 《原子能科学技术》, vol. 52, no. 5, 31 May 2018 (2018-05-31), pages 808 - 815 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116730471A (en) * | 2023-05-17 | 2023-09-12 | 山东师范大学 | Reaction device for high-salt high-COD wastewater treatment |
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Application publication date: 20200519 |
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| WW01 | Invention patent application withdrawn after publication |