CN210215265U - A broken bubble subassembly for gasifier and broken bubble of constituteing separate internals thereof - Google Patents
A broken bubble subassembly for gasifier and broken bubble of constituteing separate internals thereof Download PDFInfo
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- CN210215265U CN210215265U CN201920484688.3U CN201920484688U CN210215265U CN 210215265 U CN210215265 U CN 210215265U CN 201920484688 U CN201920484688 U CN 201920484688U CN 210215265 U CN210215265 U CN 210215265U
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Abstract
A bubble breaking assembly for a gasification furnace is an arc-shaped annular shell, a plurality of holes with sawteeth are formed in the arc-shaped annular shell, and reinforcing ribs radiate from the inner edge to the outer edge of the surface of the arc-shaped annular shell. The shock chamber comprises a shock chamber barrel, a shock chamber inner wall and a shock chamber outer wall, wherein the shock chamber inner wall and the shock chamber outer wall are sequentially provided with a shock separating inner part consisting of shock separating components, a down pipe is arranged in the center of the shock chamber barrel, and a separating component supporting frame and at least one group of shock separating components are arranged between the shock chamber barrel inner wall and the down pipe outer wall from top to bottom; the lower end surface of the downcomer is an outward-expanding conical shell, and the edge of the large end of the conical shell coincides with the arc center of the section of the bubble breaking assembly. The utility model utilizes the characteristic that the fluid (containing foam gas) flows along the shortest path to force the fluid to diffuse around the arc center, thereby achieving the purpose of evenly distributing the fluid and further effectively breaking the foam in the fluid; the gas is then passed through a corrugated coalescing plate to coalesce liquid droplets entrained in the gas on the surface of the corrugated plate, thereby reducing the liquid content of the outlet syngas.
Description
Technical Field
The utility model relates to a chilling device in a gas flow bed gasifier in the technical field of coal gasification, in particular to a foam breaking component used for a chilling device of a gasifier and a foam breaking separation internal component formed by the same.
Background
The coal cleaning and high-efficiency utilization is the guarantee of sustainable development of energy economy in China, the coal gasification technology is an important component part for the coal cleaning and high-efficiency utilization, and the entrained flow bed gasification technology is one of key technologies for the coal gasification.
The coal gasification process is a complex multi-phase physicochemical process which takes coal or coal coke as a raw material and oxygen, water vapor and the like as gasification agents under the condition of oxygen deficiency and converts combustible parts in solid coal or coal coke into gas fuel through chemical reaction under certain temperature and pressure. Wherein, the gasification furnace is the core equipment for providing a suitable place for the reaction.
The chilling chamber is an important component for ensuring the safe and efficient operation of the gasification furnace and consists of a chilling ring, a down pipe and a bottom water bath, wherein the chilling ring is positioned above the down pipe, the water bath is positioned below the down pipe, and the down pipe is required to extend into the position below the lowest liquid level of the water bath.
The downcomer is mainly used for guiding the cooled crude gas and the cooled glassy slag particles into a water bath; the water bath mainly has the functions that the cooled glassy slag particles are settled to the bottom of the container and are periodically discharged from a slag hole at the bottom of the container, and the crude gas is washed by the water bath and then escapes to a gas outlet at the top of the container.
The downcomer in the existing chilling assembly generally has a straight cylinder structure and directly extends into a water bath, and the bubble breaking plate is arranged in the axial direction of the downcomer and is perpendicular to the downcomer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a broken bubble subassembly for gasifier to and broken bubble separation internals that this subassembly constitutes, the purpose is at inside broken bubble and the isolating construction that sets up rationally of gasifier chilling indoor portion, with effectively abolish the combustion products entering produced bubble behind the water bath of gasifier and deviate from the partial water content in producing the synthetic gas.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a broken bubble subassembly for gasifier, broken bubble subassembly is convex cyclic annular casing, is provided with a plurality of holes of taking the sawtooth on it, and the strengthening rib is at convex cyclic annular casing surface from inside to outside edge radiation.
The utility model provides a broken bubble subassembly for gasifier, broken bubble subassembly is the circular arc annular casing that the lath that has the interval between each other encloses, and the strengthening rib is in circular arc annular casing surface from inside to outside edge radiation.
A bubble breaking and separating internal member consisting of bubble breaking components for a gasification furnace is characterized in that a down pipe is arranged in the center of a cylinder body of a chilling chamber, and a separating component supporting frame and at least one group of bubble breaking components are sequentially arranged between the inner wall of the cylinder body of the chilling chamber and the outer wall of the down pipe from top to bottom; the lower end surface of the downcomer is an outward-expanding conical shell, and the edge of the large end of the conical shell coincides with the arc center of the section of the bubble breaking assembly.
The half cone angle of the conical shell at the bottom of the downcomer is more than 0 degree and less than or equal to 90 degrees.
The utility model utilizes the characteristic that the fluid (containing foam gas) flows along the shortest path to force the fluid to diffuse around the arc center, thereby achieving the purpose of evenly distributing the fluid and further effectively breaking the foam in the fluid; the gas is then passed through a coalescing plate to coalesce liquid droplets entrained in the gas at the surface of the coalescing plate, thereby reducing the liquid content of the outlet syngas.
The utility model has simple structure, no rotating parts, reliable performance, compact equipment, large handling capacity, safety and reliability, and is particularly suitable for the use of bubble breaking, dehydration and dust removal in the chilling chamber of the gasification furnace.
Drawings
FIG. 1 is a view of a bubble breaking separating internal member of the present invention;
fig. 2 is a schematic view of a three-dimensional structure of a bubble breaking assembly of the present invention;
fig. 3 is a schematic perspective view of another bubble breaking assembly of the present invention;
fig. 4 is a schematic view of the arrangement of the coalescence plates of the present invention;
fig. 5 is a schematic view of a three-dimensional structure of the support frame of the separation assembly of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1, referring to fig. 2, a bubble-breaking assembly for a gasification furnace, the bubble-breaking assembly 2 is a circular arc-shaped annular shell, a plurality of holes with saw teeth are arranged on the circular arc-shaped annular shell, and reinforcing ribs radiate from the inner edge to the outer edge of the circular arc-shaped annular shell. The inner ring end of the circular arc-shaped annular shell is connected with the outer wall of the downcomer 8, and the outer ring end is connected with the inner wall of the barrel 1. The bubble breaking assembly is mainly used for breaking bubbles generated after combustion products enter a water bath.
Example 2, referring to fig. 3, a bubble-breaking assembly for a gasification furnace, the bubble-breaking assembly 2 is a circular arc-shaped annular shell surrounded by slats spaced from each other, and reinforcing ribs radiate from the inner edge to the outer edge on the surface of the circular arc-shaped annular shell. The inner ring end of the circular arc-shaped annular shell is connected with the outer wall of the downcomer 8, and the outer ring end is connected with the inner wall of the barrel 1. The bubble breaking assembly is mainly used for breaking bubbles generated after combustion products enter a water bath.
Example 3, referring to fig. 1 (reference numeral 12 in the figure is a partition between a quench chamber and a gasification chamber of a gasification furnace), a bubble-breaking separation internal member composed of a bubble-breaking assembly for a gasification furnace is composed of a cylinder 1, a bubble-breaking assembly 2, a separation assembly downcomer 3, a separation assembly inlet baffle 4, a coalescing plate 5, a separation assembly support frame 6, a separation assembly sealing plate 7, a downcomer 8, a gas outlet baffle 9, and a gas outlet 10. The size of each component is determined by the syngas throughput. A down pipe 8 is arranged in the center of a chilling chamber cylinder 1, and a separation component supporting frame 6 and at least one group of foam breaking components 2 are sequentially arranged between the inner wall of the chilling chamber cylinder 1 and the outer wall of the down pipe 8 from top to bottom; the quantity and the spacing of the foam breaking components 2 are determined by the amount of the synthesis gas produced by the gasification furnace. The lower end surface of the downcomer 8 is an outward-expanding conical shell, and the edge of the large end of the conical shell coincides with the arc center of the section of the bubble breaking assembly 2. The characteristic that the gas flows along the shortest path is utilized, so that the gas uniformly passes through the section of the bubble breaking assembly 2, and the purpose of uniformly breaking bubbles is achieved.
The top of the downcomer 8 is a cylindrical shell, the bottom of the downcomer is an outward-expanding conical shell, and the conical shell is positioned below the lowest liquid level (reference number 11 in fig. 1); the half cone angle of the cone shell is larger than 0 degree and smaller than or equal to 90 degrees. Therefore, the purposes that after the gas enters the water bath at the bottom of the container through the downcomer 8, the contact area with the water bath is enlarged as much as possible (full water washing) and the cylinders with different specifications and sizes can realize the coincidence of the edge of the large end of the conical shell and the arc center of the section of the bubble breaking assembly 2 are achieved.
Wherein, the cylinder 1 is a pressure-bearing shell of a chilling chamber at the bottom of the gasification furnace;
the separation component support frame 6 is a polyhedron which is surrounded by a central line of a down pipe 8 as a datum line and is more than or equal to 3 around the datum line, each surface of the polyhedron is a groove body frame, a separation component coalescence plate 5 is arranged in the groove body frame, and the bottom surface of the groove body frame is communicated with the separation component down-flow pipe 3. The separation assembly support frame 6 is a polyhedral frame formed by splicing channel steel or steel plates, and a groove-shaped frame formed by the channel steel or the steel plates is used for placing corrugated coalescence plates and is shown in a form of a figure 5.
The separation component downcomer 3 is a round steel pipe, one end of the separation component downcomer is connected to the bottom of the separation component supporting frame 6, and the other end of the separation component downcomer extends to a position below the lowest liquid level and lower than the lowest end of the downcomer 8; the assembly is primarily used to direct coalesced separated liquid into a water bath.
The coalescence plates 5, which are made up of several plates, are arranged inside the separation-assembly supporting frame 6, in the arrangement shown in fig. 4; the main function is to carry out coalescence separation on the crude gas containing liquid.
The separation assembly sealing plate 7 is a square steel plate, the outer edge of the separation assembly sealing plate is connected with the outer edge of the top of the separation assembly supporting frame 6, and the inner edge of the separation assembly sealing plate is connected with the outer wall of the downcomer 8; which acts to force the unseparated liquid-containing raw gas to be separated through the coalescing plate 5.
The separating assembly inlet baffle 4 is a round steel plate, the outer circle of the separating assembly inlet baffle is connected to the inner wall of the cylinder 1, and the inner part of the separating assembly inlet baffle is provided with a square hole which is connected to the edge of the bottom of the separating assembly supporting frame 6; it can prevent the back mixing of gas and liquid before and after separation.
A gas outlet 10 is arranged above the cylinder body 1 of the chilling chamber, a gas outlet baffle 9 is arranged at the gas outlet 10, and the gas outlet baffle 9 is of a semi-cylindrical thin shell structure with a sealed bottom. For forcing the synthesis gas out of the gasifier through the top of the baffle into the gas outlet 10.
The utility model discloses a theory of operation:
referring to fig. 1, the combustion products of the gasification furnace are syngas and coal cinder, the combustion products flow downwards through a downcomer 8 and enter a water bath at the bottom of a cylinder 1 of the chilling chamber, the coal cinder continuously deposits downwards after entering the water bath, the syngas moves towards the upper part of the cylinder 1 of the chilling chamber after being washed by water, and a large amount of foam is generated and flows upwards along with the gas in the process.
The process of upward flow of the foam entrained by the synthesis gas follows the axiom of flow along the shortest path. In order to fully break foam in gas, the circular arc-shaped annular foam breaking assembly 2 is arranged, so that the gas is fully diffused to the foam breaking assembly 2 at the circle center of the circular arc-shaped annular foam breaking assembly 2 along the direction of the dotted line shown in the figure, when the gas passes through the foam breaking assembly 2, the foam is punctured by the sawteeth on the circular hole channel of the foam breaking assembly 2, and therefore the purpose of breaking foam carried by synthesis gas is achieved, and a plurality of groups of foam breaking assemblies 2 can be arranged according to actual conditions in order to fully break the foam;
after passing through the bubble breaking assembly 2, the gas carries a large amount of moisture, and due to the existence of the separation assembly inlet baffle (4), the gas enters a cavity space formed by the separation assembly supporting frame 6, the separation assembly sealing plate 7 and the downcomer 8, and the gas passes through a cube formed by a plurality of coalescence plates 5. In the process, the liquid drops are coalesced on the surface of the coalescence plate and gradually form a water flow which flows downwards to the bottom of the separation component supporting frame 6 and returns to the water bath at the bottom of the chilling chamber cylinder 1 through the separation component downcomer 3, and therefore the purpose of removing water from the gas is achieved.
The dust in the gas absorbed and carried by the belt part is returned to the water bath at the bottom of the cylinder 1 of the chilling chamber due to the flow of the fluid, thereby being beneficial to reducing the dust content of the synthetic gas at the outlet. The gas continues to flow upwards after passing through the cube formed by the plurality of coalescence plates 5, and in order to prevent the occurrence of the gas short circuit phenomenon at this time, a gas outlet baffle plate 9 is arranged between the separation assembly supporting frame 6 and the gas outlet 10, so that the flowing distance of the gas between the separation assembly supporting frame 6 and the gas outlet 10 is increased, and the purpose of preventing the occurrence of the gas short circuit phenomenon is achieved.
Claims (7)
1. The foam breaking assembly for the gasification furnace is characterized in that the foam breaking assembly (2) is an arc-shaped annular shell, a plurality of holes with sawteeth are formed in the arc-shaped annular shell, and reinforcing ribs radiate from the inner edge to the outer edge of the surface of the arc-shaped annular shell.
2. The bubble breaking assembly for the gasification furnace according to claim 1, wherein the bubble breaking assembly (2) is an arc-shaped annular shell surrounded by mutually spaced slats, and reinforcing ribs radiate from the inner edge to the outer edge on the surface of the arc-shaped annular shell.
3. The internal part for breaking the bubbles and separating the components of the gasifier is characterized in that a down pipe (8) is arranged in the center of a barrel (1) of a chilling chamber, and a separating component supporting frame (6) and at least one group of bubble breaking components (2) are sequentially arranged between the inner wall of the barrel (1) of the chilling chamber and the outer wall of the down pipe (8) from top to bottom; the lower end face of the downcomer (8) is an outward-expanding conical shell, and the edge of the large end of the conical shell coincides with the arc center of the section of the bubble breaking assembly (2).
4. The bubble breaking separation internal part consisting of the bubble breaking assembly for the gasification furnace according to the claim 3, characterized in that the half cone angle of the conical shell at the bottom of the downcomer (8) is more than 0 ° and less than or equal to 90 °.
5. The foam breaking and separating internal member consisting of the foam breaking assembly for the gasification furnace according to claim 3 is characterized in that the separating assembly supporting frame (6) is a polyhedron which is encircled by a central line of a downcomer (8) as a datum line and is larger than or equal to 3, each face of the polyhedron is a tank body frame, a separating assembly coalescence plate (5) is installed in the tank body frame, and the bottom face of the tank body frame is communicated with the separating assembly downcomer (3).
6. The inner bubble breaking and separating part for the bubble breaking component of the gasification furnace is characterized in that a separating component sealing plate (7) is arranged at the upper end of a separating component supporting frame (6), and a separating component inlet baffle (4) is arranged between the lower end of the separating component supporting frame and the chilling chamber cylinder (1) in a sealing mode.
7. The internal part for breaking the bubbles and separating the components of the bubble breaking assembly for the gasification furnace is characterized in that a gas outlet (10) is arranged above the quenching chamber cylinder body (1), a gas outlet baffle (9) is arranged at the gas outlet (10), and the gas outlet baffle (9) is of a semi-cylindrical thin shell structure with a sealed bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920484688.3U CN210215265U (en) | 2019-04-11 | 2019-04-11 | A broken bubble subassembly for gasifier and broken bubble of constituteing separate internals thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920484688.3U CN210215265U (en) | 2019-04-11 | 2019-04-11 | A broken bubble subassembly for gasifier and broken bubble of constituteing separate internals thereof |
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| CN210215265U true CN210215265U (en) | 2020-03-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984042A (en) * | 2021-03-08 | 2021-06-18 | 天津大学 | Vibration reduction device and method for coal gasifier downcomer |
| CN115301306A (en) * | 2022-08-20 | 2022-11-08 | 安徽一灵药业有限公司 | Adjustable rotary evaporator for medicine production and use method thereof |
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2019
- 2019-04-11 CN CN201920484688.3U patent/CN210215265U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984042A (en) * | 2021-03-08 | 2021-06-18 | 天津大学 | Vibration reduction device and method for coal gasifier downcomer |
| CN115301306A (en) * | 2022-08-20 | 2022-11-08 | 安徽一灵药业有限公司 | Adjustable rotary evaporator for medicine production and use method thereof |
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