CN220376619U - High-efficient coal gas cooling structure - Google Patents
High-efficient coal gas cooling structure Download PDFInfo
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- CN220376619U CN220376619U CN202322210296.7U CN202322210296U CN220376619U CN 220376619 U CN220376619 U CN 220376619U CN 202322210296 U CN202322210296 U CN 202322210296U CN 220376619 U CN220376619 U CN 220376619U
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- water inlet
- cooling structure
- gas cooling
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- 238000001816 cooling Methods 0.000 title claims abstract description 43
- 239000003034 coal gas Substances 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000007921 spray Substances 0.000 claims abstract description 52
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- VGIPUQAQWWHEMC-UHFFFAOYSA-N [V].[Mo].[Cr] Chemical compound [V].[Mo].[Cr] VGIPUQAQWWHEMC-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 13
- 238000005406 washing Methods 0.000 abstract description 9
- 238000002309 gasification Methods 0.000 abstract description 7
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 9
- 239000003595 mist Substances 0.000 description 8
- 241000883990 Flabellum Species 0.000 description 5
- 238000009692 water atomization Methods 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241000561734 Celosia cristata Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010866 blackwater Substances 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a high-efficiency gas cooling structure, which belongs to gasification furnace cooling equipment, and aims to solve the technical problems of improving the cooling efficiency of high-temperature gas of a gasification furnace, enhancing the washing effect, reducing the ash carrying amount of the high-temperature gas, realizing the safe energy-saving and long-period high-efficiency operation of the equipment, and adopting the following technical scheme: the structure of the device comprises a down pipe and two parallel water inlet pipes, wherein the down pipe is positioned between the two water inlet pipes and is parallel to the water inlet pipes; at least two communicating pipes are arranged between the two water inlet pipes, and two ends of each communicating pipe are respectively communicated with the two water inlet pipes; the communicating pipe is annular, and a plurality of nozzle assemblies distributed in an annular shape are arranged on the side wall of the annular communicating pipe, which is close to the descending pipe; the spray head assembly comprises a spray head connecting pipe, one end of the spray head connecting pipe is communicated with the annular communicating pipe, the other end of the spray head connecting pipe is provided with honeycomb wear-resistant spray heads, and the honeycomb wear-resistant spray heads are uniformly distributed on the outer side of the descending pipe in an annular mode.
Description
Technical Field
The utility model relates to gasification furnace cooling equipment, in particular to a high-efficiency coal gas cooling structure.
Background
The high-temperature gas of the gasifier is cooled by a water jacket and a chilling ring, enters the chilling chamber through a downcomer to be cooled in a water bath, and is sent out to a raw gas main pipe after rising through a foam breaking plate, so that the cooling effect is not ideal, the water jacket is easy to block, the water mist bias flow is caused to cause the high-temperature synthesis gas to be partially overheated and burn out the downcomer, the stable production is not facilitated, and the overhaul cost is high.
Therefore, how to improve the cooling efficiency of the high-temperature gas of the gasifier, enhance the washing effect, reduce the ash carrying amount of the high-temperature gas, and realize the safe energy saving and long-period high-efficiency operation of the equipment is a technical problem to be solved urgently at present.
Disclosure of Invention
The utility model aims to provide a high-efficiency gas cooling structure to solve the problems of how to improve the cooling efficiency of high-temperature gas of a gasifier, enhance the washing effect, reduce the ash carrying amount of the high-temperature gas, realize the safe energy conservation and long-period high-efficiency operation of equipment.
The technical task of the utility model is realized in the following way, the high-efficiency coal gas cooling structure comprises a down pipe and two parallel water inlet pipes, wherein the down pipe is positioned between the two water inlet pipes and is parallel to the water inlet pipes; at least two communicating pipes are arranged between the two water inlet pipes, and two ends of each communicating pipe are respectively communicated with the two water inlet pipes; the communicating pipe is annular, and a plurality of nozzle assemblies distributed in an annular shape are arranged on the side wall of the annular communicating pipe, which is close to the descending pipe;
the spray head assembly comprises a spray head connecting pipe, one end of the spray head connecting pipe is communicated with the annular communicating pipe, the other end of the spray head connecting pipe is provided with honeycomb wear-resistant spray heads, and the honeycomb wear-resistant spray heads are uniformly distributed on the outer side of the descending pipe in an annular mode.
Preferably, a water inlet pipe plug is arranged at the lower end of the water inlet pipe.
More preferably, the honeycomb wear-resistant spray head is a fan-shaped structure consisting of a spray head central tube positioned at the central position and fan blades positioned at the outer side of the spray head central tube.
More preferably, a plurality of uniformly distributed atomizing holes are formed in the outer edge of the fan blade, the outer edge of each atomizing hole is in a zigzag shape, and the zigzag atomizing holes are used for improving the atomizing effect.
More preferably, one end of the spray head central tube is communicated with the spray head connecting tube, a folding scale tube is arranged at the tail end position of the other end of the spray head central tube, and the tail end of the folding scale tube is welded and connected with the outer edge of the fan blade.
More preferably, a plurality of folding scale pipes are arranged on two sides of the central pipe of the spray head, and the outer edges of the blades at the tail ends of the folding scale pipes are welded and connected.
More preferably, the folded scale tube is a coiled tube structure consisting of a folded tube and scales arranged at the folded position of the folded tube.
More preferably, a plurality of folding scale holes are arranged on the folding pipe.
More preferably, the scale is located folding scale hole outside department, is provided with a plurality of gear holes that vary in size on the scale, forms the water smoke after colliding with sealed rivers, and design folding scale pipe can make water smoke distribution even, helps the high temperature water atomization, improves cooling efficiency.
More preferably, the folding scale tube is made of 12 chromium molybdenum vanadium material with wear resistance, high temperature resistance and high pressure resistance;
the water inlet pipe, the communicating pipe and the nozzle connecting pipe are all stainless steel pipes.
The efficient gas cooling structure has the following advantages:
the utility model adopts the descending pipe sectional annular honeycomb wear-resistant spray head to realize sectional washing and cooling of the high-temperature raw gas, can reduce the temperature of the high-temperature gas to 2-3 ℃ of normal working condition temperature, improves the cooling efficiency, enhances the washing effect, reduces the ash carrying amount of the high-temperature gas, prolongs the equipment operation period, reduces the water supplementing amount of the system, and realizes safe, energy-saving and long-period and high-efficiency operation of the system;
the atomized water formed by the honeycomb wear-resistant spray head is used for carrying out sectional convection cooling on the high-temperature gas in the downcomer, so that the temperature of the raw gas is greatly reduced, the cooled raw gas enters a chilling chamber water bath for washing and cooling again, and the cooled raw gas is sent into a raw gas main pipe through a bubble breaking plate and a gasification furnace;
(III) the fan blades of the honeycomb wear-resistant spray head are uniformly distributed with DN50mm atomizing holes, and the outer circle of each atomizing hole is in a zigzag shape, so that the atomizing effect is improved;
the scales are arranged on the periphery of the folding scale holes, gear holes with different sizes are fully distributed on the scales, water mist is formed after collision with sealing water flow, the folding scale pipe is designed to enable the water mist to be uniformly distributed, high-temperature water atomization is facilitated, cooling efficiency is improved, the material is wear-resistant high-temperature-resistant high-pressure-resistant 12 chromium molybdenum vanadium, and the folding scale pipe is connected with a descending pipe and a DN40 pipe diameter stainless steel pipe through flanges, so that the folding scale pipe is convenient to detach and examine in the future;
the cooling medium adopts high-temperature high-pressure sealing water, and the pressure can be adjusted in time according to the actual high-temperature gas pressure; the pressure of the existing gasification process system is generally about 3.8-4.0MPA, the normal water pressure is controlled to be 6.0-6.5MPA, the high-temperature high-pressure sealing water can be automatically regulated by the high-pressure pump, the spraying water quantity is ensured, and the optimal cooling efficiency is achieved;
the high-temperature raw gas is washed and cooled by adopting the descending pipe annular spraying sectional cooling method, so that the temperature of the raw gas can be reduced to 2-3 ℃ under normal working conditions, the cooling efficiency is improved, the ash carrying amount of the high-temperature gas is reduced, and the service life of equipment is prolonged;
the utility model realizes continuous washing of the clinker, the coarse clinker is chilled sufficiently to facilitate the separation of the clinker, the bridging at the upper part of the clinker breaker is prevented, and the long-period stable operation of the equipment is facilitated;
the utility model reduces the black water temperature at the outlet of the gasification furnace, reduces the heat load of a slag water system, reduces the desalted water supplementing amount and has obvious energy-saving effect;
the utility model has the core elements of safety and energy conservation, improves the cooling efficiency of high-temperature gas, reduces the temperature of the raw gas of the gasifier, enhances the washing effect, reduces the ash carrying amount of the high-temperature gas, prolongs the operation period of equipment, reduces the water supplementing amount of the system, and realizes safe, energy-saving and long-period and efficient operation of the system;
the honeycomb wear-resistant spray head can improve the atomization effect of sealing water, increase the cooling area, improve the cooling efficiency and further reduce the temperature of raw gas;
according to the pressure of the process system, the sealing water pressure can be timely adjusted through the high-pressure sealing water pump, so that the optimal cooling effect is achieved;
(twelve) the water mist is fully mixed with the high-temperature raw gas in the downcomer, and ash slag is utilized to separate, so that the ash carrying amount of the raw gas is reduced, the pressure difference of a pipeline is reduced, and the long-period operation of the system is facilitated;
thirteenth, the utility model has low cost, simple structure and easy maintenance.
Therefore, the utility model has the characteristics of reasonable design, simple structure, easy processing, small volume, convenient use, multiple purposes, and the like, thereby having good popularization and use values.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a high-efficiency gas cooling structure;
FIG. 2 is a view from direction A of FIG. 1;
FIG. 3 is a schematic structural view of a honeycomb wear-resistant sprinkler tube;
fig. 4 is a schematic structural view of a folded scale tube.
In the figure: 1. the spray head comprises a descending pipe 2, a water inlet pipe 3, a communicating pipe 4, a spray head connecting pipe 5, a honeycomb wear-resistant spray head 6, a water inlet pipe plug 7, a spray head central pipe 8, fan blades 9, an atomization hole 10, a folding scale pipe 11, a folding pipe 12, scales 13, a folding scale hole 14 and a gear hole.
Detailed Description
The following detailed description of a high efficiency gas cooling structure according to the present utility model is provided with reference to the accompanying drawings and specific examples.
In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description. Rather than indicating or implying that the apparatus or elements herein referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples:
as shown in fig. 1 and 2, the embodiment provides a high-efficiency gas cooling structure, which comprises a down pipe 1 and two parallel water inlet pipes 2, wherein the down pipe 1 is positioned between the two water inlet pipes 2, and the down pipe 1 is parallel to the water inlet pipes 2; a communicating pipe 3 is arranged between the two water inlet pipes 2, and two ends of the communicating pipe 3 are respectively communicated with the two water inlet pipes 2; the communicating pipe 3 is annular, and the side wall of the annular communicating pipe 3, which is close to the down pipe, is provided with a plurality of nozzle assemblies distributed in an annular shape;
the shower nozzle subassembly includes shower nozzle connecting pipe 4, and shower nozzle connecting pipe 4 one end is linked together with annular communicating pipe 3, and wear-resisting shower nozzle 5 of honeycomb is installed to the shower nozzle connecting pipe 4 other end, and wear-resisting shower nozzle 5 of honeycomb is annular evenly distributed in the outside of downcomer 1.
The lower end of the water inlet pipe 2 in the embodiment is provided with a water inlet pipe plug 6.
As shown in fig. 3, the wear-resistant honeycomb nozzle 5 in the present embodiment has a fan-shaped structure composed of a nozzle center tube 7 located at the center and fan blades 8 located outside the nozzle center tube 7.
In this embodiment, a plurality of uniformly distributed atomizing holes 9 are formed at the outer edge of the fan blade 8, the outer edge of the atomizing holes 9 is in a zigzag shape, and the zigzag atomizing holes 9 are used for improving the atomizing effect.
In the embodiment, one end of a spray head central tube 7 is communicated with a spray head connecting tube 4, a folding scale tube 10 is arranged at the tail end position of the other end of the spray head central tube 4, and the tail end of the folding scale tube 10 is welded and connected with the outer edge of a fan blade 8.
In the embodiment, two sides of a central pipe 7 of the spray head are provided with a plurality of folding scale pipes 10, and the outer edges of blades 8 at the tail ends of the folding scale pipes 10 are welded and connected.
As shown in fig. 4, the folded scale tube 10 in the present embodiment is a serpentine tube structure composed of a folded tube 11 and scales 12 installed at the folds of the folded tube 11.
The folding tube 11 in this embodiment is provided with a plurality of folding scale holes 13.
The scale 12 in this embodiment is located at the outer side of the folded scale hole 13, a plurality of gear holes 14 with different sizes are formed on the scale 12, water mist is formed after collision with sealing water flow, and the folded scale tube 10 is designed to enable the water mist to be uniformly distributed, so that high-temperature water atomization is facilitated, and cooling efficiency is improved.
The folding scale tube 10 in the embodiment adopts a scale tube made of 12 chromium molybdenum vanadium materials with wear resistance, high temperature resistance and high pressure resistance.
In this embodiment, the water inlet pipe 2, the communicating pipe 3 and the nozzle connecting pipe 4 are stainless steel pipes.
In the embodiment, the high-pressure sealing water pump is used for pressing to 6.0-6.5MPA, and the flow is set to be 40-80m 3 /h, divided into two pathsThe water inlet pipe 2 (the water inlet pipe 2 adopts DN125 stainless steel pipe) enters the chilling chamber and is connected with the annular communicating pipe 3 (communicating pipe 3 adopts stainless steel pipe) of the pipe diameter DN80 from top to bottom along the periphery of the descending pipe 1 (the diameter DN1200MM of the descending pipe 1), the annular communicating pipe 3 of the pipe diameter DN80 has the diameter DN1400MM, the horizontal distance between the annular communicating pipe 3 and the descending pipe 1 is designed to be 20 cm, the two water inlet pipes 2 and the annular communicating pipe 3 are fixed (or welded) by adopting flanges, and the water inlet pipe plug 6 at the tail end of the pipeline is plugged. 4 groups of annular communicating pipes 3 with DN80 are arranged on the outer circle of the descending tube 1, 4 groups of annular communicating pipes 3 are arranged at intervals of 20 cm up and down, 4 corresponding DN40 spray head connecting pipes 4 are horizontally arranged on each group of annular communicating pipes 3 respectively, the descending tube 1 and DN40 spray head connecting pipes 4 are horizontally corresponding to openings, two ends of DN40 spray head connecting pipes 4 (stainless steel pipes are adopted for spray head connecting pipes 4) are respectively connected with the annular communicating pipes 3 and the honeycomb wear-resistant spray heads 5 by flanges, the honeycomb wear-resistant spray heads 5 and the descending tube 1 are connected by flanges, atomized water formed by the honeycomb wear-resistant spray heads 5 carries out sectional convection cooling on high-temperature coal gas in the descending tube 1, the temperature of the raw coal gas is greatly reduced, the cooled raw coal gas enters a chilling chamber water bath for washing cooling again, and is sent into a raw coal gas main pipe by a foam breaking plate gasification furnace.
The wear-resisting shower nozzle 5 outsides of honeycomb comprise flabellum 8, evenly distribute the atomizing hole 9 that full DN50mm bore diameter on the flabellum 8, atomizing hole 9 excircle is the cockscomb structure, promote atomization effect, the inboard center of wear-resisting shower nozzle 5 of honeycomb is equipped with DN20mm shower nozzle center tube 7, shower nozzle center tube 7 adopts stainless steel pipe, pass through the nut with shower nozzle connecting pipe 4 and be connected, the pipe diameter end is through a DN15mm folding scale pipe 10 of flange joint, end and flabellum 8 adoption welded fastening, a plurality of DN15mm folding scale pipe 10 are connected gradually from the top down in both sides, adopt flange joint, end and flabellum 8 adoption welded fastening, shower nozzle center tube 7 bottom and flabellum 8 interface department welded fastening. The periphery of the folding scale hole 13 is provided with scales 12, gear holes 14 with different sizes are fully distributed on the scales 12, water mist is formed after collision with sealing water flow, the folding scale pipe 10 is designed to uniformly distribute the water mist, high-temperature water atomization is facilitated, cooling efficiency is improved, and the material is wear-resistant high-temperature-resistant high-pressure-resistant 12 chromium molybdenum vanadium, a downcomer and a spray head connecting pipe are connected through flanges, so that the device is convenient for disassembly and inspection in the future.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. The efficient coal gas cooling structure is characterized by comprising a down pipe and two parallel water inlet pipes, wherein the down pipe is positioned between the two water inlet pipes and is parallel to the water inlet pipes; at least two communicating pipes are arranged between the two water inlet pipes, and two ends of each communicating pipe are respectively communicated with the two water inlet pipes; the communicating pipe is annular, and a plurality of nozzle assemblies distributed in an annular shape are arranged on the side wall of the annular communicating pipe, which is close to the descending pipe;
the spray head assembly comprises a spray head connecting pipe, one end of the spray head connecting pipe is communicated with the annular communicating pipe, the other end of the spray head connecting pipe is provided with honeycomb wear-resistant spray heads, and the honeycomb wear-resistant spray heads are uniformly distributed on the outer side of the descending pipe in an annular mode.
2. The efficient gas cooling structure according to claim 1, wherein a water inlet pipe plug is arranged at the lower end of the water inlet pipe.
3. The efficient gas cooling structure according to claim 1 or 2, wherein the honeycomb wear-resistant spray head is a fan-shaped structure composed of a spray head central tube positioned at a central position and fan blades positioned outside the spray head central tube.
4. The efficient gas cooling structure according to claim 3, wherein a plurality of uniformly distributed atomizing holes are formed in the outer edge of the fan blade, and the outer edges of the atomizing holes are in a zigzag shape.
5. The efficient gas cooling structure according to claim 4, wherein one end of the central pipe of the spray head is communicated with the spray head connecting pipe, a folding scale pipe is arranged at the tail end position of the other end of the central pipe of the spray head, and the tail end of the folding scale pipe is welded with the outer edge of the fan blade.
6. The efficient gas cooling structure according to claim 5, wherein a plurality of folding scale pipes are arranged on two sides of the central pipe of the spray head, and the outer edges of the tail blades of the folding scale pipes are welded.
7. The efficient gas cooling structure according to claim 6, wherein the folded scale tube is a serpentine tube structure composed of a folded tube and scales provided at the folded portion of the folded tube.
8. The efficient gas cooling structure according to claim 7, wherein a plurality of folding scale holes are formed in the folding pipe.
9. The efficient gas cooling structure according to claim 8, wherein the scales are positioned at the outer sides of the folding scale holes, and a plurality of gear holes with different sizes are formed in the scales.
10. The efficient gas cooling structure according to claim 9, wherein the folding scale tube is made of 12 chromium molybdenum vanadium material with wear resistance, high temperature resistance and high pressure resistance;
the water inlet pipe, the communicating pipe and the nozzle connecting pipe are all stainless steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322210296.7U CN220376619U (en) | 2023-08-17 | 2023-08-17 | High-efficient coal gas cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322210296.7U CN220376619U (en) | 2023-08-17 | 2023-08-17 | High-efficient coal gas cooling structure |
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| Publication Number | Publication Date |
|---|---|
| CN220376619U true CN220376619U (en) | 2024-01-23 |
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ID=89567243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322210296.7U Active CN220376619U (en) | 2023-08-17 | 2023-08-17 | High-efficient coal gas cooling structure |
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| Country | Link |
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| CN (1) | CN220376619U (en) |
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2023
- 2023-08-17 CN CN202322210296.7U patent/CN220376619U/en active Active
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