Gasification furnace cyclone type quench ring

Abstract

The application discloses a gasification furnace cyclone type quench ring and belongs to the technical field of quench rings of gasification furnaces. The quench ring comprises a ring base, the bottom of the ring base is provided with a downcomer connected with a gas guide pipe of the gasification furnace, a water distribution ring pipe is arranged on the inner side wall of the ring base, a quench ring cavity is arranged in the water distribution ring pipe, a quench water chamber is annularly arranged in the inner part of the ring base, the quench water chamber and the quench ring cavity are communicated through an annular gap, and a plurality of water inlet pipes are uniformly arranged on the bottom of the ring base and communicated with the quench water chamber, the water inlet pipes are obliquely connected with the ring base. The continuous annular gap surrounding the quench ring cavity is adopted to replace a plurality of small water outlet holes, on the one hand, the flow cross section is larger and the flow channel is wider, and the blockage hidden danger and dry area phenomenon are reduced in structure; on the other hand, the quench water is uniformly and gently diffused and flows out along the annular gap, the scouring force is uniformly dispersed, the leakage problem caused by the high-speed slag-containing water flow scouring the water distribution ring pipe is solved fundamentally, and the safe operation of the equipment is ensured.

Description

Technical Field

[0001] This invention relates to the field of gasifier quench ring technology, and more specifically, to a swirl-type quench ring for a gasifier. Background Technology

[0002] During the operation of the gasifier, the high-temperature crude gas inside the furnace needs to undergo cooling, dust removal, and humidification through a quenching process. The quenching ring is installed below the slag inlet of the gasifier's combustion chamber, and its lower part is connected to a gas guide pipe. Its core function is to evenly distribute quenching water to the inner wall of the gas guide pipe, forming a continuous and stable swirling water film to prevent the high-temperature crude gas from burning the pipe wall. The quenching water then flows down into the area below the quenching chamber, and the crude gas, guided by the gas guide pipe, enters the area below the quenching water level in the quenching chamber for thorough water bath treatment.

[0003] Existing patent CN105316045B discloses a method for processing a quench ring in a coal-water slurry gasifier. The method involves creating multiple water distribution holes above the inner water distribution ring in the cavity seat; then, a hard alloy material is sprayed onto the inner surface of the outer ring pipe, the outer surface of the inner water distribution ring, and the outlet of the inner water distribution ring to form a coating layer; finally, the outer ring pipe is cut into at least three sections. This method improves the erosion resistance and service life of the quench ring, reduces the number of shutdowns, and overcomes the waste of raw materials caused by previous shutdowns for maintenance and replacement of the quench ring.

[0004] However, existing patents and current quench rings have shortcomings: Existing quench rings generally employ an outlet-type water distribution structure, meaning several inclined outlet holes are opened between the quench water chamber and the quench ring cavity, along with a corresponding number of unclogging holes for maintenance. However, the small diameter and narrow flow channels of the outlet holes result in high water resistance, making them prone to localized blockages. This leads to dry areas on the inner wall of the downcomer, causing pipe wall burn-out. Furthermore, the high-speed quench water directly impacts the outlet holes, violently scouring the water distribution ring pipe opposite the outlet holes, causing pipe wall leakage and affecting the safe operation and service life of the equipment.

[0005] Therefore, it is necessary to provide a swirl-type quench ring for a gasifier to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a swirl-type quench ring for a gasifier to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A swirl-type quench ring for a gasifier, comprising: The ring seat has a downcomer pipe at its bottom that is connected to the gas guide pipe of the gasifier; A water distribution ring pipe is disposed on the inner side wall of the ring seat, and a cooling ring cavity is provided inside the water distribution ring pipe; A quench water chamber is annularly formed inside the ring seat, and the quench water chamber and the quench ring cavity are connected by an annular gap; Multiple water inlet pipes are evenly arranged at the bottom of the ring seat and communicate with the quench water chamber. The water inlet pipes are connected to the ring seat at an incline.

[0008] Furthermore, the inner wall of the downcomer is provided with a water distribution inner ring, and the water distribution ring pipe is covered on the outer periphery of the water distribution inner ring, forming the quenching annular cavity between the water distribution ring pipe and the water distribution inner ring.

[0009] Furthermore, the side wall of the ring seat is provided with a plurality of cleaning holes evenly distributed along the circumference, the cleaning holes are connected to the quench water chamber, and the inner wall of the cleaning holes is detachably connected with cleaning bolts.

[0010] Furthermore, the water inlet pipe is connected to the ring seat at a 45° angle, and the axis of the water inlet pipe is parallel to the tangent of the annular circumference of the chilled water chamber.

[0011] Furthermore, the inlet end of the water inlet pipe is connected to a flange, and a filter element is detachably installed inside the water inlet pipe.

[0012] Furthermore, the filter element includes an interconnected mounting ring and a filter screen, the mounting ring being detachably connected to the end of the water inlet pipe.

[0013] Furthermore, the end of the water inlet pipe is provided with multiple fixing holes, and the mounting ring is provided with multiple through mounting holes that are adapted to the fixing holes.

[0014] Furthermore, a flow-blocking cylinder is detachably connected to the inner wall of the downcomer, and a flow-blocking cavity is formed between the outer wall of the flow-blocking cylinder and the inner wall of the downcomer.

[0015] Furthermore, a guide tube is provided at the bottom of the baffle cylinder, and the guide tube is flared.

[0016] Furthermore, the inner wall of the downcomer is provided with a plurality of connecting cylindrical columns with internal threads, the outer wall of the baffle cylinder is provided with an outer sleeve column adapted to the connecting cylindrical columns, and the inner wall of the baffle cylinder is provided with a through hole communicating with the outer sleeve column.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention replaces the traditional numerous small water outlets with a continuous annular gap surrounding the quenching ring cavity. On the one hand, this results in a larger flow cross-section and a wider flow channel, eliminating narrow constriction areas. Impurities such as coal ash and slag carried in the quenching water are less likely to accumulate, structurally reducing the risk of local blockages. This ensures a continuous and stable quenching water flow, reduces dry areas on the inner walls of the downcomer and gas guide pipe, and prevents high-temperature crude gas from burning the pipe walls, thus ensuring safe equipment operation. On the other hand, by eliminating the traditional water outlets, the high-speed quenching water no longer jets directly onto the distribution ring pipe, but instead diffuses evenly and gently along the annular gap. The water flow scouring force is evenly distributed, eliminating local strong scouring points. This fundamentally solves the leakage problem caused by the high-speed slag-containing water flow scouring the distribution ring pipe, ensuring safe equipment operation. At the same time, it reduces slag accumulation on the inner wall of the quenching ring, reduces the frequency of unplanned shutdowns for maintenance, and significantly extends the service life of the equipment.

[0018] 2. The flow resistance of the annular gap in this invention is much smaller than that of traditional small water outlet holes. The friction loss and local resistance loss of the quench water during the transportation and distribution process are significantly reduced. The flow requirements can be met without increasing the output power of the quench water pump, effectively reducing system energy consumption and improving the economic efficiency of gasifier operation.

[0019] 3. The water inlet pipe of this invention is connected at a 45° oblique angle, and its axis is parallel to the tangent of the annular circumference of the chilled water chamber. After the chilled water enters, it can form a stable and uniform annular vortex. With the continuous annular gap and uniform water distribution around the circumference, a vortex-type water film with full coverage, no breaks and uniform thickness can be formed on the inner wall of the air guide pipe. The stability of the water film is greatly improved, and the cooling, dust removal and humidification effects are better.

[0020] 4. This invention eliminates the need for outlet holes and adopts an annular gap, thus eliminating the need for cleaning holes in the existing quench ring that correspond one-to-one with the outlet holes. The number of cleaning holes is significantly reduced compared to the traditional structure, and the hole diameter can be enlarged (the reduction in the number of cleaning holes does not affect the overall strength). It also eliminates the need to clear a large number of outlet holes one by one, making maintenance operations simpler and faster, effectively reducing the intensity of manual maintenance, shortening downtime for maintenance, and improving the overall operating efficiency of the gasifier. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external three-dimensional structure of the cooling ring of the present invention; Figure 2 This is a front view schematic diagram of the cooling ring structure of the present invention; Figure 3 This is a top view of the internal cross-section of the cooling ring seat of the present invention. Figure 4 for Figure 3 Cross-sectional view along the AA direction; Figure 5 for Figure 4 Enlarged structural diagram at point B; Figure 6 for Figure 4 Enlarged structural diagram at point C; Figure 7 This is a schematic diagram of the filter element and water inlet pipe of the present invention in a disassembled state; Figure 8 For the present invention Figure 4 A schematic diagram of the structure of Embodiment 2 in the current state; Figure 9 for Figure 8 Enlarged structural diagram at point D; Figure 10 This is a schematic diagram of the disassembled state of the baffle and downcomer in Embodiment 2 of the present invention; Figure 11 for Figure 10 Enlarged structural diagram at point E in the middle.

[0022] Explanation of the labels in the diagram: 1. Ring seat; 2. Air guide pipe; 3. Downcomer; 4. Water distribution ring pipe; 5. Quenching ring cavity; 6. Quenching water chamber; 7. Annular gap; 8. Water inlet pipe; 9. Inner water distribution ring; 10. Unblocking hole; 11. Unblocking bolt; 12. Flange; 13. Filter element; 131. Mounting ring; 132. Filter screen; 14. Fixing hole; 15. Mounting hole; 16. Baffle cylinder; 17. Baffle cavity; 18. Guide cylinder; 19. Connecting cylinder column; 20. Outer sleeve column; 21. Perforation. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: Please see Figure 1-7 A swirl-type quench ring for a gasifier, comprising: The ring seat 1 has a downcomer 3 at its bottom that is connected to the gas guide pipe 2 of the gasifier; A water distribution ring pipe 4 is installed on the inner side wall of the ring seat 1. The water distribution ring pipe 4 has a quenching ring cavity 5 inside, which serves as a ring-shaped flow channel for quenching water. The quench water chamber 6 is annularly opened inside the ring seat 1. The quench water chamber 6 and the quench annular cavity 5 are connected by an annular gap 7. The annular gap 7 is a continuous flow annular gap that surrounds the quench annular cavity 5, replacing the traditional water outlet. It has a large flow area and no narrow flow channels, which completely solves the problems of blockage and scouring. Multiple water inlet pipes 8 are evenly arranged at the bottom of the ring seat 1 and communicate with the quench water chamber 6. The water inlet pipes 8 are inclined to the ring seat 1, and the quench water enters along the inclined tangential direction to form a vortex.

[0025] In use, quench water is pumped into the inlet pipe 8 by a quench water pump. Quenching water is continuously introduced into the quench water chamber 6 inside the ring seat 1 through the inclined inlet pipe 8. Then, the quench water flows evenly into the quench annular cavity 5 through the continuously flowing annular gap 7. Finally, the quench water flows downward along the inner wall of the downcomer 3, forming a swirling water film on the inner walls of the downcomer 3 and the gas guide pipe 2. This prevents the high-temperature crude gas passing through the gas guide pipe 2 from burning the gas guide pipe 2. The quench water flows down into the area below the quench chamber. Under the guidance of the gas guide pipe 2, the crude gas enters the area below the quench water level in the quench chamber for thorough water bath treatment.

[0026] By replacing the traditional numerous small water outlets with a continuous annular gap 7 surrounding the quenching ring cavity, on the one hand, the flow cross-section is larger and the flow channel is wider, with no narrow or constricted areas. Impurities such as coal ash and slag carried in the quenching water are less likely to be retained or accumulated, structurally reducing the risk of local blockage, ensuring a continuous and stable quenching water flow, reducing the occurrence of dry areas on the inner wall of the downcomer 3, avoiding damage to the pipe wall from high-temperature crude gas, and ensuring safe operation of the equipment. On the other hand, after eliminating the traditional water outlets, the high-speed quenching water no longer jets directly into the distribution ring pipe 4, but instead diffuses and flows out evenly and gently along the annular gap 7. The water flow scouring force is evenly distributed, with no local strong scouring points, fundamentally solving the leakage problem caused by the high-speed slag-containing water flow scouring the distribution ring pipe 4, ensuring safe operation of the equipment, while reducing slag accumulation on the inner wall of the quenching ring, significantly extending the service life of the equipment, and reducing the frequency of unplanned shutdowns for maintenance.

[0027] In addition, the flow resistance of the annular gap 7 is much smaller than that of traditional small water outlet holes. The friction loss and local resistance loss of the quench water during the transportation and distribution process are significantly reduced. The flow requirements can be met without increasing the output power of the quench water pump, which effectively reduces system energy consumption and improves the economic efficiency of gasifier operation.

[0028] Through the inclined connection of the water inlet pipe 8, the chilled water can form a stable and uniform annular vortex after entering. With the continuous annular gap 7 for uniform water distribution around the circumference, a vortex water film with full coverage, no breaks and uniform thickness can be formed on the inner wall of the air guide pipe 2. The stability of the water film is greatly improved, and the cooling, dust removal and humidification effects are better.

[0029] For preferred options, please refer to [link / reference]. Figure 4-5The inner wall of the downcomer 3 is provided with a water distribution inner ring 9, and the water distribution ring pipe 4 is covered on the outer periphery of the water distribution inner ring 9. A quenching annular cavity 5 is formed between the water distribution ring pipe 4 and the water distribution inner ring 9, which serves as an annular flow channel for quenching water. The double-layered annular bodies of the water distribution ring pipe 4 and the water distribution inner ring 9 enclose and form a closed quenching annular cavity 5, with no water leakage, high utilization rate of quenching water, and the function of guiding it to the inner wall of the downcomer 3.

[0030] For preferred options, please refer to [link / reference]. Figure 1-5 The side wall of the ring seat 1 is provided with a plurality of cleaning holes 10 evenly distributed in the circumferential direction. The cleaning holes 10 are connected to the quench water chamber 6. The inner wall of the cleaning holes 10 is detachably connected with cleaning bolts 11.

[0031] Specifically, when the gasifier and quench ring are operating normally, the unblocking bolt 11 is kept locked to prevent quench water from leaking from the unblocking hole 10. When the equipment is being repaired and unblocked, the unblocking bolt 11 is first unscrewed, and the quench water chamber 6 and annular gap 7 are flushed and cleaned through the unblocking hole 10. After cleaning, the unblocking bolt 11 is screwed back into the unblocking hole 10 to restore the sealing state.

[0032] Since this application eliminates the water outlet hole and adopts an annular gap 7, there is no need to use cleaning holes in the existing quench ring that correspond one-to-one with the water outlet hole. The number of cleaning holes 10 is greatly reduced compared with the traditional structure, and the hole diameter can be enlarged (the reduction in the number of cleaning holes 10 does not affect the overall strength). There is no need to unclog a large number of water outlet holes one by one, making maintenance operations simpler and faster, effectively reducing the intensity of manual maintenance, shortening downtime for maintenance, and improving the overall operating efficiency of the gasifier.

[0033] For preferred options, please refer to [link / reference]. Figure 1-4 The water inlet pipe 8 is connected to the ring seat 1 at a 45° angle, and the axis of the water inlet pipe 8 is parallel to the tangent of the annular circumference of the chilled water chamber 6.

[0034] With this design, the chilled water can flow tangentially into the chilled water chamber 6 through the inlet pipe 8. The tangential 45° water inlet can naturally form a vortex, eliminating the need for additional vortex components and simplifying the structure. Finally, the chilled water forms a stable and uniform annular vortex in the chilled water chamber 6, providing power for uniform circumferential water distribution.

[0035] For preferred options, please refer to [link / reference]. Figure 1-2 , Figure 4 and Figure 6-7 The inlet end of the water inlet pipe 8 is connected to a flange 12, and a filter element 13 is detachably installed inside the water inlet pipe 8.

[0036] This design allows the filter element 13 to be detachably installed inside the inlet pipe 8, completing the pre-filtration assembly. Then, the inlet pipe 8 is sealed and connected to the external chilled water pipeline through the flange 12 at the inlet end of the inlet pipe 8. When the chilled water is transported, it first passes through the filter element 13 to intercept impurities, and then flows cleanly into the chilled water chamber 6. This can intercept large particles of impurities such as coal ash and slag, preventing impurities from entering the chilled water chamber 6 and the annular gap 7, forming a dual anti-clogging structure of "pre-filtration and annular gap flow", further extending the continuous and stable operation cycle of the equipment.

[0037] During regular maintenance, disassemble filter element 13 to clean out trapped impurities. Cleaning and maintenance are simple and ensure long-term filtration effect. After cleaning, reinstall it into the inlet pipe 8.

[0038] It should be noted that in actual use, staff can choose whether to install filter element 13 based on the specific situation. For example, if there are many large impurities in the chilled water that can easily clog filter element 13, and the impurities can pass through the annular gap 7, filter element 13 can be left uninstalled. This is a flexible option.

[0039] In this embodiment, preferably, please refer to [reference needed]. Figure 4 and Figure 6-7 The filter element 13 includes an interconnected mounting ring 131 and a filter screen 132, with the mounting ring 131 detachably connected to the end of the water inlet pipe 8.

[0040] Specifically, the installation ring 131 is installed at the end of the water inlet pipe 8. When the chilled water flows in, it passes through the filter screen 132, and impurities are intercepted inside the filter screen 132. When cleaning, the installation ring 131 can be removed to take out the filter screen 132, remove the impurities, and then reassemble.

[0041] In addition, the filter 132 has a funnel-shaped design. The funnel-shaped filter 132 has a large filtration area and strong flow capacity, and is not easily clogged due to the accumulation of impurities.

[0042] For preferred options, please refer to [link / reference]. Figure 6-7 The end of the water inlet pipe 8 is provided with multiple fixing holes 14, and the mounting ring 131 is provided with multiple through mounting holes 15 that are adapted to the fixing holes 14.

[0043] Specifically, when installing the filter element 13, the mounting ring 131 of the filter element 13 is attached to the end of the water inlet pipe 8, so that the mounting hole 15 and the fixing hole 14 are precisely aligned. Then, the mounting ring 131 is locked and fixed to the water inlet pipe 8 by passing the bolt through the mounting hole 15 and the fixing hole 14. When disassembling, the bolt is unscrewed, the mounting ring 131 is separated from the water inlet pipe 8, and the filter element 13 can be taken out. Disassembly and assembly only require bolt operation, the steps are simple, and maintenance time is shortened.

[0044] Example 2: Please see Figure 1-11Based on Embodiment 1, a baffle cylinder 16 is detachably connected to the inner wall of the downcomer 3, and a baffle cavity 17 is formed between the outer wall of the baffle cylinder 16 and the inner wall of the downcomer 3.

[0045] With this design, when the quench water flows out of the quench annular cavity 5, most of the quench water will flow downward along the inner wall of the downcomer 3, forming a swirling water film on the inner walls of the downcomer 3 and the air guide pipe 2. However, a small portion of the quench water will splash out from the inner walls of the downcomer 3 and the air guide pipe 2. At this time, this small portion of quench water will be blocked by the baffle cavity 17 and the baffle cylinder 16. This splashed water will be guided by the baffle cylinder 16 and then evenly adhere to the inner walls of the downcomer 3 and the air guide pipe 2. This can avoid some water splashing and turbulence, further ensure the continuity of the water film, better avoid local flow interruption and dry areas, and improve the quenching effect.

[0046] The baffle 16 is detachable, making it easy to inspect, clean, or replace.

[0047] The baffle 16 can be made of high-temperature resistant metal, such as refractory metal, high-temperature alloy, or special heat-resistant steel. Alternatively, the baffle 16 can be omitted without affecting the operation of the quench ring. The choice can be made according to the needs.

[0048] In this embodiment, preferably, please refer to [reference needed]. Figure 8 and Figure 10 The bottom of the baffle 16 is provided with a guide cylinder 18, which is flared.

[0049] With this design, the splashed chilled water, as it falls onto the outer wall of the baffle 16 and flows downwards, is guided by the flared end of the guide tube 18. Finally, the water flow is precisely directed to the inner wall of the air guide tube 2, completely covering the tube wall to form a complete water film. This further effectively ensures that there are no exposed dry areas on the inner wall of the air guide tube 2; the guiding effect causes the water flow to adhere to the wall, avoiding direct impact and dispersion, improving the stability of the water film, and enhancing the protection of the air guide tube 2.

[0050] In this embodiment, preferably, please refer to [reference needed]. Figure 8-11 The inner wall of the downcomer 3 is provided with multiple connecting cylinders 19 with internal threads, and the outer wall of the baffle cylinder 16 is provided with an outer sleeve 20 that is adapted to the connecting cylinders 19. The inner wall of the baffle cylinder 16 is provided with a through hole 21 that communicates with the outer sleeve 20.

[0051] With this design, when installing the baffle 16, it is placed inside the downcomer 3, ensuring precise alignment between the outer sleeve column 20 and the connecting sleeve column 19. Finally, a bolt is passed through the through hole 21 in the inner wall of the baffle 16 and screwed into the connecting sleeve column 19 to complete the fixation. To disassemble, the bolt is unscrewed in the reverse direction to remove the baffle 16. This design makes disassembly and assembly simple and quick, and inspection and maintenance more convenient.

[0052] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

[0053] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0054] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

Claims

1. A swirl-type quench ring for a gasifier, characterized in that, include: The ring seat (1) has a downcomer (3) at its bottom that is connected to the gas guide pipe (2) of the gasifier. A water distribution ring pipe (4) is provided on the inner side wall of the ring seat (1), and a cooling ring cavity (5) is provided inside the water distribution ring pipe (4). A chilled water chamber (6) is annularly formed inside the ring seat (1), and the chilled water chamber (6) and the chilled annular cavity (5) are connected by an annular gap (7); Multiple water inlet pipes (8) are evenly arranged at the bottom of the ring seat (1) and communicate with the chilled water chamber (6). The water inlet pipes (8) are inclinedly connected to the ring seat (1).

2. The swirl-type quench ring for a gasifier according to claim 1, characterized in that, The inner wall of the downcomer (3) is provided with a water distribution inner ring (9), and the water distribution ring pipe (4) covers the outer periphery of the water distribution inner ring (9). The cooling ring cavity (5) is formed between the water distribution ring pipe (4) and the water distribution inner ring (9).

3. The swirl-type quench ring for a gasifier according to claim 1, characterized in that, The side wall of the ring seat (1) is provided with a plurality of cleaning holes (10) evenly distributed in the circumferential direction. The cleaning holes (10) are connected to the chilled water chamber (6). The inner wall of the cleaning holes (10) is detachably connected with cleaning bolts (11).

4. The swirl-type quench ring for a gasifier according to claim 1, characterized in that, The water inlet pipe (8) is connected to the ring seat (1) at a 45° angle, and the axis of the water inlet pipe (8) is parallel to the circumferential tangent of the chilled water chamber (6).

5. The swirl-type quench ring for a gasifier according to claim 1, characterized in that, The inlet end of the water inlet pipe (8) is connected to a flange (12), and a filter element (13) is detachably installed inside the water inlet pipe (8).

6. A swirl-type quench ring for a gasifier according to claim 5, characterized in that, The filter element (13) includes an interconnected mounting ring (131) and a filter screen (132), wherein the mounting ring (131) is detachably connected to the end of the water inlet pipe (8).

7. A swirl-type quench ring for a gasifier according to claim 6, characterized in that, The end of the water inlet pipe (8) is provided with multiple fixing holes (14), and the mounting ring (131) is provided with multiple through mounting holes (15) that are adapted to the fixing holes (14).

8. A swirl-type quench ring for a gasifier according to claim 1, characterized in that, The inner wall of the downcomer (3) is detachably connected to a baffle cylinder (16), and a baffle cavity (17) is formed between the outer wall of the baffle cylinder (16) and the inner wall of the downcomer (3).

9. A swirl-type quench ring for a gasifier according to claim 8, characterized in that, The bottom of the baffle cylinder (16) is provided with a guide cylinder (18), which is flared.

10. A swirl-type quench ring for a gasifier according to claim 9, characterized in that, The inner wall of the downcomer (3) is provided with a plurality of connecting cylinders (19) with internal threads, and the outer wall of the baffle cylinder (16) is provided with an outer sleeve (20) that is adapted to the connecting cylinders (19). The inner wall of the baffle cylinder (16) is provided with a through hole (21) that communicates with the outer sleeve (20).

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