CN220957957U - Pipeline buffer for coal slurry pipeline and system thereof - Google Patents
Pipeline buffer for coal slurry pipeline and system thereof Download PDFInfo
- Publication number
- CN220957957U CN220957957U CN202322880353.2U CN202322880353U CN220957957U CN 220957957 U CN220957957 U CN 220957957U CN 202322880353 U CN202322880353 U CN 202322880353U CN 220957957 U CN220957957 U CN 220957957U
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- pipeline
- coal slurry
- buffer
- slurry
- pipe
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- 239000003250 coal slurry Substances 0.000 title claims abstract description 100
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 17
- 239000003921 oil Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 17
- 238000002309 gasification Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 abstract 7
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Liquid Carbonaceous Fuels (AREA)
Abstract
The utility model relates to the related technical field of coal slurry conveying and buffering, and particularly provides a pipeline buffering device and a system thereof for a coal slurry pipeline, wherein the pipeline buffering device comprises a coal slurry pipeline, the pipeline buffering device is arranged on the coal slurry pipeline, and the pipeline buffering device comprises a shell, a gas buffering chamber and a hydraulic oil buffering chamber; an inflation tube is arranged on the gas buffer chamber, and an inflation valve is arranged on the inflation tube; the hydraulic oil buffer chamber is provided with an oil filling pipe, and the oil filling pipe is provided with an oil filling valve. Compared with the prior art, the utility model is beneficial to stabilizing the pressure difference of the burner and the furnace condition of the gasifier, and effectively avoids system decrement caused by pressure fluctuation.
Description
Technical Field
The utility model relates to the technical field of coal slurry conveying and buffer, in particular to a pipeline buffer for a coal slurry pipeline and a system thereof.
Background
The high-pressure coal slurry pump of the pressurized gasification device generally adopts a variable-frequency three-plunger diaphragm reciprocating pump, a bag-type pulse coal slurry buffer is arranged on an inlet and outlet pipeline of the high-pressure coal slurry pump, the running pressure changes along with the increasing and decreasing process of the pump, and the buffer can play a role in peak clipping and valley filling so as to reduce the pressure change amplitude of the coal slurry.
However, the arrangement problem is that the coal slurry pipeline is often longer, and the reasons such as the process burner structure and the oxygen pressure at the tail end of the coal slurry pipeline are added, so that when the actual coal slurry load is not obviously changed in site, and the on-site coal slurry pump is not single-cylinder or not large in quantity, the coal slurry pressure reflected in front of the process burner of the gasifier is easy to fluctuate to different degrees, the problem of later fluctuation is more frequent along with the operation time extension of the process burner, the problem of later fluctuation of the coal slurry pressure is easy to cause the operation time extension of the burner, the problem of later fluctuation is more frequent, the fluctuation of the coal slurry pressure is easy to cause the fluctuation of the burner pressure difference, and the low pressure difference interlock of the burner is easy to trigger, so that the whole system is stopped.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the pipeline buffer for the coal slurry pipeline and the system thereof, which have reasonable design, simple structure, safe use and reduced pressure.
The technical scheme adopted for solving the technical problems is as follows:
The pipeline buffer comprises a coal slurry pipeline, wherein the pipeline buffer is installed on the coal slurry pipeline and comprises a shell, a gas buffer chamber and a hydraulic oil buffer chamber;
An inflation tube is arranged on the gas buffer chamber, and an inflation valve is arranged on the inflation tube; the hydraulic oil buffer chamber is provided with an oil filling pipe, and the oil filling pipe is provided with an oil filling valve.
Furthermore, the two sides of the pipeline buffer are provided with outer flanges, the outer sides of the outer flanges are connected with the coal slurry pipeline, the inner sides of the outer flanges are provided with inner flanges, and the inner flanges and the outer flanges are connected with the pipeline buffer shell through studs.
Further, an inner diaphragm liner is fixed between the inner flange and the outer flange, an outer diaphragm liner is fixed between the inner flange and the shell, a space between the outer diaphragm liner and the pipeline buffer shell is a gas buffer chamber, and a hydraulic oil buffer chamber is arranged between the inner diaphragm liner and the outer diaphragm liner.
The system for the coal slurry pipeline comprises a high-pressure coal slurry pump, wherein an outlet of the high-pressure coal slurry pump is connected with a pipeline buffer through one path of the coal slurry pipeline, and the pipeline buffer is connected with a gasification furnace through a process burner;
The outlet of the high-pressure coal slurry pump is connected with a coal slurry tank through the other path of the coal slurry pipeline, and the outlet of the coal slurry tank is connected with the inlet of the high-pressure coal slurry pump through an inlet pipeline.
Further, an outlet energy accumulator is arranged on a coal slurry pipeline at the near end of the high-pressure coal slurry pump, a top energy accumulator is arranged on the side, close to the process burner, of the coal slurry pipeline, and a cut-off valve and a pipeline buffer are sequentially arranged on the coal slurry pipeline between the top energy accumulator and the process burner.
Further, the coal slurry pipeline connected with the high-pressure coal slurry pump is connected with another return pipeline, a return valve is arranged on the return pipeline, the coal slurry enters the inlet of the coal slurry tank through the return valve, and a coal slurry tank outlet valve is arranged at the outlet of the coal slurry tank.
Furthermore, the inlet pipeline is connected with the outlet of the coal slurry tank and the inlet of the high-pressure coal slurry pump, and an inlet energy accumulator is arranged on the inlet channel.
Compared with the prior art, the pipeline buffer for the coal slurry pipeline and the system thereof have the following outstanding beneficial effects:
According to the utility model, the pressure of coal slurry at the process burner is stabilized through the top energy accumulator and the pipeline buffer, so that the pressure difference of the burner and the furnace condition of the gasifier are stabilized, and system decrement caused by pressure fluctuation is effectively avoided.
The contact area between the pipeline buffer and the coal slurry is much larger than that of a spherical accumulator in the prior art, so that the pipeline buffer is more sensitive to the reaction of pressure fluctuation, and the vibration of a coal slurry pipeline can be effectively reduced by the hydraulic oil buffer chamber.
In conclusion, the utility model has the advantages of reasonable design, simple structure, safety, reliability, convenient use and good popularization and use values.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a pipeline buffer for a slurry pipeline;
FIG. 2 is a top view of FIG. 1 at A;
FIG. 3 is a schematic diagram of a system for a slurry conduit.
The reference numerals in the drawings denote:
1. The device comprises an outlet energy accumulator, 2, a high-pressure coal slurry pump, 3, an inlet energy accumulator, 4, an inlet pipeline, 5, a coal slurry tank outlet valve, 6, a coal slurry tank, 7, a backflow pipeline, 8, a backflow valve, 9, a coal slurry pipeline, 10, a top energy accumulator, 11, a shut-off valve, 12, a pipeline buffer, 13, a process burner, 14, a gasifier, 15, an outer flange, 16, an inner flange, 17, a shell, 18, an inflation pipe, 19, an inflation valve, 20, a gas buffer chamber, 21, a stud, 22, an oil filling pipe, 23, an oil filling valve, 24, a coal slurry tank inlet, 25, an outer diaphragm liner, 26, a hydraulic oil buffer chamber, 27 and an inner diaphragm liner.
Detailed Description
The utility model will now be further described with reference to the drawings and specific examples, which are not intended to limit the utility model.
In the present utility model, unless otherwise specified, terms such as "upper, lower, left, and right" and "upper, lower, left, and right" are used generically to refer to the upper, lower, left, and right illustrated in the drawings; "inner and outer" means inner and outer relative to the contour of the respective parts themselves.
A preferred embodiment is given below:
As shown in fig. 1-2, a pipe buffer 12 for a coal slurry pipe in the present embodiment includes a coal slurry pipe 9, the pipe buffer 12 is mounted on the coal slurry pipe 9, and the pipe buffer 12 includes a housing 17, a gas buffer chamber 20, and a hydraulic oil buffer chamber 26;
Wherein, the gas buffer chamber 20 is provided with an inflation tube 18, and the inflation tube 18 is provided with an inflation valve 19; the hydraulic oil buffer chamber 26 is provided with an oil filling pipe 22, and the oil filling pipe 22 is provided with an oil filling valve 23.
The two sides of the pipeline buffer 12 are provided with outer flanges 15, the outer sides of the outer flanges 15 are connected with the coal slurry pipeline 9, the inner sides of the outer flanges 15 are provided with inner flanges 16, and the inner flanges 16 and the outer flanges 15 are connected with a pipeline buffer shell 17 through studs 21.
An inner diaphragm liner 27 is fixed between the inner flange 16 and the outer flange 15, an outer diaphragm liner 25 is fixed between the inner flange 16 and the shell 17, a space between the outer diaphragm liner 25 and the pipeline buffer shell 17 is a gas buffer chamber 20, and a hydraulic oil buffer chamber 26 is arranged between the inner diaphragm liner 27 and the outer diaphragm liner 25.
As shown in fig. 3, a system for a coal slurry pipeline comprises a high-pressure coal slurry pump 2, wherein an outlet of the high-pressure coal slurry pump 2 is connected with a pipeline buffer 12 through one path of a coal slurry pipeline 9, and the pipeline buffer 12 is connected with a gasification furnace 14 through a process burner 13.
The outlet of the high-pressure coal slurry pump 2 is connected with a coal slurry tank 6 through the other path of the coal slurry pipeline 9, and the outlet of the coal slurry tank 6 is connected with the inlet of the high-pressure coal slurry pump 2 through an inlet pipeline 4.
The coal slurry pipeline 9 at the near end of the high-pressure coal slurry pump 2 is provided with an outlet energy accumulator 3, the side of the coal slurry pipeline 9 close to the process burner 13 is provided with a top energy accumulator 10, and a cut-off valve 11 and a pipeline buffer 12 are sequentially arranged on the coal slurry pipeline 9 between the top energy accumulator 10 and the process burner 13.
The coal slurry pipeline 9 connected with the high-pressure coal slurry pump 2 is connected with another return pipeline 7, the return pipeline 7 is provided with a return valve 8, the coal slurry enters the inlet of the coal slurry tank 6 through the return valve 8, and the outlet of the coal slurry tank 6 is provided with a coal slurry tank outlet valve 5.
The inlet pipeline 4 is connected with the outlet of the coal slurry tank 6 and the inlet of the high-pressure coal slurry pump 2, and the inlet channel 4 is provided with an inlet energy accumulator 3.
When the pipeline buffer 12 for the coal slurry pipeline 9 is used, the gas buffer chamber 20 is inflated or deflated by opening and closing the inflation valve 19, and the hydraulic oil buffer chamber 26 is inflated by the oil inflation valve 19.
The space between the outer diaphragm liner 25 and the pipeline buffer shell 17 is a gas buffer chamber 20, and the space between the inner diaphragm liner 27 and the outer diaphragm liner 25 is a hydraulic oil buffer chamber 26, compared with the spherical accumulator and the coal slurry in the prior art, the contact area between the gas buffer chamber 20 and the hydraulic oil buffer chamber 26 is much larger, on one hand, the reaction to pressure fluctuation is more sensitive, and on the other hand, the hydraulic oil buffer chamber 26 can also more effectively reduce the vibration of the coal slurry pipeline 9.
When the pipeline buffer 12 is used in the system for the coal slurry pipeline 9, the top energy accumulator 10 is arranged on the side, close to the process burner 13, of the coal slurry pipeline 9, so that the pressure of coal slurry at the process burner 13 is stabilized, the pressure difference of the process burner 13 and the furnace condition of the gasification furnace 14 are stabilized, and the system decrement caused by pressure fluctuation is effectively avoided.
The pipeline buffer 12 is provided with a shut-off valve 11 to better control the shut-off, on-off or switching of the fluid in the slurry pipeline 9.
An inlet accumulator 3 is arranged at the inlet of the high-pressure coal slurry pump 2, and an outlet accumulator 1 is arranged at the outlet, so that the functions of better energy storage and hydraulic impact absorption are achieved.
The above embodiment is only one of the preferred embodiments of the present utility model, and the ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model.
Claims (7)
1. The pipeline buffer for the coal slurry pipeline comprises the coal slurry pipeline and is characterized in that the pipeline buffer is arranged on the coal slurry pipeline and comprises a shell, a gas buffer chamber and a hydraulic oil buffer chamber;
An inflation tube is arranged on the gas buffer chamber, and an inflation valve is arranged on the inflation tube; the hydraulic oil buffer chamber is provided with an oil filling pipe, and the oil filling pipe is provided with an oil filling valve.
2. The pipeline buffer for a coal slurry pipeline according to claim 1, wherein outer flanges are arranged on two sides of the pipeline buffer, the outer sides of the outer flanges are connected with the coal slurry pipeline, inner flanges are arranged on the inner sides of the outer flanges, and the inner flanges and the outer flanges are connected with a pipeline buffer shell through studs.
3. The pipeline buffer for the coal slurry pipeline according to claim 2, wherein an inner diaphragm liner is fixed between the inner flange and the outer flange, an outer diaphragm liner is fixed between the inner flange and the shell, a space between the outer diaphragm liner and the pipeline buffer shell is a gas buffer chamber, and a hydraulic oil buffer chamber is arranged between the inner diaphragm liner and the outer diaphragm liner.
4. A system for a coal slurry pipeline, comprising a high-pressure coal slurry pump, and is characterized in that an outlet of the high-pressure coal slurry pump is connected with a pipeline buffer according to any one of claims 1 to 3 through one path of the coal slurry pipeline, and the pipeline buffer is connected with a gasification furnace through a process burner;
The outlet of the high-pressure coal slurry pump is connected with a coal slurry tank through the other path of the coal slurry pipeline, and the outlet of the coal slurry tank is connected with the inlet of the high-pressure coal slurry pump through an inlet pipeline.
5. The system for a slurry pipe according to claim 4, wherein an outlet accumulator is provided on the slurry pipe at the proximal end of the high pressure slurry pump, a top accumulator is provided on the side of the slurry pipe near the process burner, and a shut-off valve and a pipe buffer are provided in this order on the slurry pipe between the top accumulator and the process burner.
6. The system for a slurry pipe of claim 5, wherein the slurry pipe to which the high pressure slurry pump is connected with another return pipe, the return pipe is provided with a return valve, the return valve is passed through to enter the slurry tank inlet, and the slurry tank outlet is provided with a slurry tank outlet valve.
7. The system for a slurry conduit according to claim 6, wherein the inlet conduit connects the slurry tank outlet with the high pressure slurry pump inlet and an inlet accumulator is provided on the inlet conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322880353.2U CN220957957U (en) | 2023-10-26 | 2023-10-26 | Pipeline buffer for coal slurry pipeline and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322880353.2U CN220957957U (en) | 2023-10-26 | 2023-10-26 | Pipeline buffer for coal slurry pipeline and system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220957957U true CN220957957U (en) | 2024-05-14 |
Family
ID=91020477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322880353.2U Active CN220957957U (en) | 2023-10-26 | 2023-10-26 | Pipeline buffer for coal slurry pipeline and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220957957U (en) |
-
2023
- 2023-10-26 CN CN202322880353.2U patent/CN220957957U/en active Active
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