CN220770822U - Novel gas pipeline drainage device - Google Patents
Novel gas pipeline drainage device Download PDFInfo
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- CN220770822U CN220770822U CN202322322712.2U CN202322322712U CN220770822U CN 220770822 U CN220770822 U CN 220770822U CN 202322322712 U CN202322322712 U CN 202322322712U CN 220770822 U CN220770822 U CN 220770822U
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- gas pipeline
- pipeline
- valve
- gas
- drainage device
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 4
- 239000003034 coal gas Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model discloses a novel gas pipeline drainage device, relates to the technical field of industrial gas pipeline structures, and solves the problem that an existing common gas drainer is only applicable to a low-pressure gas pipeline and cannot be used on a blast furnace equalizing gas pipeline. The device comprises two sections of first gas pipelines, wherein a second gas pipeline is communicated between the two sections of first gas pipelines, the cross section area of the second gas pipeline is larger than that of the first gas pipeline, the end part of the second gas pipeline is connected with an annular blind plate, and the inner periphery of the annular blind plate is connected with the corresponding first gas pipeline; the bottom of the second gas pipeline is provided with a plurality of drain holes which are communicated with the drain pipeline. Can bear the pressure of the high-pressure gas pipeline, and achieves the effects of effectively reducing the flow speed, multi-point water filtration and improving the drainage.
Description
Technical Field
The utility model relates to the technical field of industrial gas pipeline structures, in particular to a novel gas pipeline drainage device.
Background
Condensed water is easy to generate in industrial gas pipelines, and a large amount of water is very harmful to the pipelines. The method is characterized in that the equalizing pressure is needed to be carried out on a middle tank during feeding in a blast furnace process, and the gas subjected to secondary dust removal and purification is conveyed to the blast furnace middle tank through an equalizing pressure pipeline from a dry dust removal process; the water in the gas not only causes corrosion to the pipeline, but also causes harm to the blast furnace production:
firstly, the water in the coal gas enters a middle charging bucket, dust is easily condensed and adhered to the wall of the bucket, so that the wall of the bucket is accumulated with dust and accumulated with the material, and if the dust is not cleaned timely, the feeding failure of the blast furnace can be caused, and even production accidents such as blast furnace wind reduction or damping down can occur; secondly, the dust removing pipeline on the top of the furnace is easy to cause dust accumulation in the dust removing pipeline due to the fact that wet dust is sucked, so that the pipeline is blocked, and the cleaning difficulty is high.
However, the existing common gas drainer is only suitable for low-pressure gas pipelines, the pressure in the pipelines is about 280Kpa when the blast furnace gas is in pressure equalizing, and the common gas drainer cannot be used on the blast furnace gas pipelines in pressure equalizing; therefore, a novel gas pipeline drainage device is needed, the pressure of a high-pressure gas pipeline can be borne, the flow speed is effectively reduced, multi-point water filtration is realized, and the drainage effect is improved.
Disclosure of Invention
The utility model aims to provide a novel gas pipeline drainage device which can effectively slow down the flow rate and realize multi-point drainage and improve the drainage effect.
The technical aim of the utility model is realized by the following technical scheme:
the novel gas pipeline drainage device comprises two sections of first gas pipelines, wherein a second gas pipeline is communicated between the two sections of first gas pipelines, the cross section area of the second gas pipeline is larger than that of the first gas pipeline, the end part of the second gas pipeline is connected with an annular blind plate, and the inner periphery of the annular blind plate is connected with the corresponding first gas pipeline; the bottom of the second gas pipeline is provided with a plurality of drain holes which are communicated with the drain pipeline.
Further, a plurality of spoilers are connected in the second gas pipeline, and adjacent spoilers are respectively connected to two opposite sides of the second gas pipeline.
Further, the flow blocking plate comprises an upper side plate and a lower side plate which are respectively connected with the upper side and the lower side of the second gas pipeline, and the drainage hole is positioned between the adjacent lower side plates.
Furthermore, the thickness of the annular blind plate is more than or equal to 14mm, and the annular blind plate is welded on the inner side of the corresponding end of the second gas pipeline and is more than or equal to 100mm away from the corresponding end.
Furthermore, triangular rib plates are welded at the welding seam of the annular blind plate, the number of the triangular rib plates is more than or equal to 8 per circle, and the thickness of the triangular rib plates is more than or equal to 10mm.
Further, the thickness of the spoiler is more than or equal to 20mm.
Further, the radius of the second gas pipeline is 150-200 mm larger than that of the first gas pipeline.
Furthermore, the device is arranged on a raw gas pipeline, a pipeline cut-off valve is arranged in the raw gas pipeline, two sides of the pipeline cut-off valve are respectively communicated with an inlet cut-off valve and an outlet cut-off valve, and the other ends of the inlet cut-off valve and the outlet cut-off valve are respectively communicated with corresponding first gas pipelines.
Further, the drain holes are communicated with corresponding maintenance valves, the other ends of the maintenance valves are communicated with a drain pipeline, and the other ends of the drain pipelines are communicated with a water reservoir.
Furthermore, an inlet pneumatic ball valve and an outlet pneumatic ball valve are respectively arranged at the inlet and the outlet of the water accumulator, the upper end and the lower end of the water accumulator are respectively connected with a pressure guiding pipe, and the other end of the pressure guiding pipe is communicated with a liquid level meter.
In summary, the utility model has the following beneficial effects:
the structure is simple, and the manufacture and the installation are convenient; the pressure of the high-pressure gas pipeline can be borne, and the influence of the pressure of the gas is avoided; the automatic drainage can be realized, and unmanned operation is realized; the air flow in the pipeline is effectively buffered, multi-point water filtering is realized, and the water draining effect is better;
the accumulated water in the gas pipeline can be removed, the service life of the gas pipeline is prolonged, accumulated materials in the middle tank of the blast furnace are reduced, the positive effect is played on stabilizing the production of the blast furnace, the accumulated ash in the dust removal pipeline at the top of the blast furnace is effectively prevented, and the environmental protection accidents are reduced;
has the advantages of slow flow rate, multi-point water filtration, centralized collection, automatic discharge, convenient installation and the like.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a novel gas conduit drainage device of the present utility model;
fig. 2 is a schematic structural diagram of the novel gas pipeline drainage device after being installed in a butt joint mode with a raw gas pipeline.
In the figure, 0, raw gas pipeline; 01. a pipe shut-off valve; 02. an inlet shutoff valve; 03. an outlet shutoff valve; 04. an inlet blind plate valve; 05. an outlet blind plate valve; 1. a first gas conduit; 2. a second gas conduit; 21. a spoiler; 22. a conduit bracket; 3. an annular blind plate; 4. a drainage pipe; 41. a service valve; 5. a water reservoir; 51. an inlet pneumatic ball valve; 52. an outlet pneumatic ball valve; 53. a pressure guiding pipe; 54. a level gauge.
Detailed Description
The following description of the embodiments of the utility model is further illustrated in the accompanying drawings, and the examples are not meant to limit the utility model. All other embodiments obtained by those skilled in the art based on the embodiments herein without making any inventive effort are intended to fall within the scope of the present application.
The utility model provides a novel gas pipeline drainage device, as shown in fig. 1, including two sections first gas pipeline 1, the intercommunication has second gas pipeline 2 between two sections first gas pipeline 1, second gas pipeline 2 cross sectional area is greater than first gas pipeline 1, second gas pipeline radius is greater than first gas pipeline 150~200mm, in this embodiment, first gas pipeline 1 is DN500, second gas pipeline 2 is DN900 for dry dedusting clean gas gets into second gas pipeline 2 through first gas pipeline 1, because of the increase of pipeline inner cross sectional area, the air current velocity of flow slows down, forms the buffer zone in second gas pipeline 2, be favorable to the interior comdenstion water coalescence of pipeline.
Specifically, the inner periphery of the end part of the second gas pipeline 2 is welded with an annular blind plate 3, and the inner periphery of the annular blind plate 3 is welded with the corresponding first gas pipeline 1, so that the first gas pipeline 1 and the second gas pipeline 2 are welded and connected through the annular blind plate 3; the thickness of the annular blind plate 3 is more than or equal to 14mm, the annular blind plate is welded on the inner side of the corresponding end of the second gas pipeline 2, the distance between the welding position and the corresponding end of the annular blind plate is more than or equal to 100mm, the annular blind plate 3 is embedded into the pipeline wall of the second gas pipeline 2 when being installed, the distance between the annular blind plate 3 and the end of the second gas pipeline 2 is 100mm (in the embodiment, the distance between the annular blind plate and the end of the first gas pipeline 1 is 300 mm), a pressing test is performed after the pipeline is welded, the test pressure is more than or equal to 500Kpa, triangular rib plates are welded at the welding seam of the annular blind plate 3, the number of the triangular rib plates is more than or equal to 8 each circle, and the thickness of the triangular rib plates is more than or equal to 10mm.
As shown in fig. 1, a plurality of spoilers 21 are fixedly connected in the second gas pipeline 2, and adjacent spoilers 21 are respectively connected to two opposite sides of the second gas pipeline 2, so that gas flow enters the second gas pipeline 2 and is buffered again through the spoilers 21; in the embodiment, the flow blocking plate 21 is connected with the second gas pipeline 2 in a double-sided welding mode, the thickness of the flow blocking plate 21 is more than or equal to 20mm, and the size of the flow blocking plate is half of the inner wall of the second gas pipeline 2; the material of the second gas pipeline 2 is selected from Q345B, and the inside and the outside are subjected to corrosion prevention treatment;
the bottom of the second gas pipeline 2 is provided with a plurality of drain holes which are communicated with the drain pipeline 4; the flow blocking plate 21 comprises an upper side plate and two lower side plates (the adjacent flow blocking plates 21 are one upper and one lower), and are respectively connected to the upper side and the lower side of the second gas pipeline 2, the drainage holes are positioned between the adjacent lower side plates (three drainage holes are arranged between the two lower side plates, and the other two drainage holes are arranged between the corresponding lower side plates and the corresponding side annular blind plates 3), and water in the gas enters the bottom drainage holes after being condensed on the inner wall of the pipeline; the outer periphery of the second gas pipeline 2 is provided with a pipeline bracket 22 corresponding to the positions of the two lower side plates.
As shown in fig. 1, each drain hole is communicated with a corresponding service valve 41 (DN 50, three in total), the other end of each service valve 41 is communicated with the same drain pipeline 4, and the drain pipeline 4 is made of phi 60 x 5mm and is made of 202 stainless steel; the other end of the drainage pipeline 4 is communicated with a water reservoir 5;
the condensed water flows into the three drain holes, passes through the overhaul valve 41, flows into the drain pipeline 4, and then flows into the cylindrical water reservoir 5; the technical parameter of the water accumulator 5 is phi 200mm, the length is 1000mm, the effective volume is 0.03 m, the wall thickness is more than or equal to 10mm, the material is selected from Q345B, a pressure test is carried out after welding, and the test pressure is more than or equal to 500Kpa.
As shown in fig. 1, an inlet pneumatic ball valve 51 (DN 50) and an outlet pneumatic ball valve 52 (DN 50) are respectively arranged at the inlet and the outlet of the water reservoir 5, the upper end and the lower end of the water reservoir 5 are respectively connected with a pressure guiding pipe 53, and the other end of the pressure guiding pipe 53 is communicated with a liquid level meter 54; the pressure guiding pipe 53 adopts a stainless steel pipeline with phi of 20mm or 3mm, and the radius R of the elbow is more than or equal to 50mm; all ball valves are made of stainless steel;
the working principle is as follows: when the water level of the water reservoir 5 reaches a high level and enters a pressure guiding pipe 53 pipeline at the top, a liquid level meter 54 transmits a pressure difference signal to a PLC box, the PLC module sends out a command signal, the inlet pneumatic ball valve 51 (electromagnetic valve) is closed by power supply, the outlet pneumatic ball valve 52 is opened, and the water reservoir 5 is drained; when the water level of the water reservoir 5 is lower than the set position, the liquid level meter 54 transmits a signal to the PLC box, the PLC module sends an instruction signal, the outlet pneumatic ball valve 52 (electromagnetic valve) is powered off, the inlet pneumatic ball valve 51 is opened to start a water storage mode, and the water storage mode can be switched by the modes of timing or a water level sensor and the like after repeated circulation.
As shown in fig. 2, the device is arranged on a raw gas pipeline 0 (phi 530) with pressure equalizing, a pipeline cut-off valve 01 is arranged in the raw gas pipeline 0, two sides of the pipeline cut-off valve 01 of the raw gas pipeline 0 are respectively communicated with an inlet cut-off valve 02 and an outlet cut-off valve 03 (DN 500, PN 10), the other ends of the inlet cut-off valve 02 and the outlet cut-off valve 03 are respectively communicated with an inlet blind plate valve 04 and an outlet blind plate valve 05 (DN 500, PN 10), and the other ends of the inlet blind plate valve 04 and the outlet blind plate valve 05 are communicated with the outer ends of corresponding first gas pipelines 1 (the first gas pipelines 1 comprise pipeline bends of 90 degrees and phi 530 at the outer ends so that second gas pipelines 2 are parallel to the raw gas pipelines 0);
when the drainage device works normally, all valves (a shut-off valve and a blind plate valve) at the inlet end and the outlet end are opened, a pipeline shut-off valve 01 of a raw gas pipeline 0 is closed, and gas passes through the drainage device to a blast furnace intermediate tank; when the drainage device is out of operation, the pipeline shut-off valve 01 of the raw gas pipeline 0 is opened, all valves (shut-off valve and blind plate valve) of the inlet and outlet of the drainage device are closed, and the gas passes through the raw gas pipeline 0 to the blast furnace intermediate tank.
The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model, and those skilled in the art may make various modifications and equivalents within the spirit and scope of the utility model, and such modifications and equivalents should also be considered as falling within the scope of the technical solution of the present utility model.
Claims (10)
1. The utility model provides a novel coal gas pipeline drainage device which characterized in that: the device comprises two sections of first gas pipelines, wherein a second gas pipeline is communicated between the two sections of first gas pipelines, the cross section area of the second gas pipeline is larger than that of the first gas pipeline, the end part of the second gas pipeline is connected with an annular blind plate, and the inner periphery of the annular blind plate is connected with the corresponding first gas pipeline; the bottom of the second gas pipeline is provided with a plurality of drain holes which are communicated with the drain pipeline.
2. The novel gas pipeline drainage device according to claim 1, wherein: and a plurality of spoilers are connected in the second gas pipeline, and adjacent spoilers are respectively connected to two opposite sides of the second gas pipeline.
3. The novel gas pipeline drainage device according to claim 2, wherein: the flow blocking plate comprises an upper side plate and a lower side plate which are respectively connected with the upper side and the lower side of the second gas pipeline, and the drainage hole is positioned between the adjacent lower side plates.
4. The novel gas pipeline drainage device according to claim 1, wherein: the thickness of the annular blind plate is more than or equal to 14mm, and the annular blind plate is welded on the inner side of the corresponding end of the second gas pipeline and is more than or equal to 100mm away from the corresponding end.
5. The novel gas pipeline drainage device according to claim 4, wherein: and triangular rib plates are welded at the welding seams of the annular blind plates, the number of the triangular rib plates is more than or equal to 8 in each circle, and the thickness of the triangular rib plates is more than or equal to 10mm.
6. The novel gas pipeline drainage device according to claim 2, wherein: the thickness of the spoiler is more than or equal to 20mm.
7. The novel gas pipeline drainage device according to claim 1, wherein: the radius of the second gas pipeline is 150-200 mm larger than that of the first gas pipeline.
8. The novel gas pipeline drainage device according to claim 1, wherein: the device is arranged on a raw gas pipeline, a pipeline cut-off valve is arranged in the raw gas pipeline, two sides of the pipeline cut-off valve are respectively communicated with an inlet cut-off valve and an outlet cut-off valve, and the other ends of the inlet cut-off valve and the outlet cut-off valve are respectively communicated with corresponding first gas pipelines.
9. A novel gas pipeline drainage device according to claim 1 or 8, characterized in that: the drain hole is communicated with the corresponding maintenance valve, the other end of each maintenance valve is communicated with the drain pipeline, and the other end of the drain pipeline is communicated with the water accumulator.
10. The novel gas pipeline drainage device according to claim 9, wherein: the inlet and the outlet of the water accumulator are respectively provided with an inlet pneumatic ball valve and an outlet pneumatic ball valve, the upper end and the lower end of the water accumulator are respectively connected with a pressure guiding pipe, and the other end of the pressure guiding pipe is communicated with the liquid level meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322322712.2U CN220770822U (en) | 2023-08-29 | 2023-08-29 | Novel gas pipeline drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322322712.2U CN220770822U (en) | 2023-08-29 | 2023-08-29 | Novel gas pipeline drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220770822U true CN220770822U (en) | 2024-04-12 |
Family
ID=90597897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322322712.2U Active CN220770822U (en) | 2023-08-29 | 2023-08-29 | Novel gas pipeline drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220770822U (en) |
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2023
- 2023-08-29 CN CN202322322712.2U patent/CN220770822U/en active Active
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