Device and method for regulating and controlling water flow and coal gas flow in supercritical water gasification

Abstract

The invention discloses a device and a method for regulating and controlling water flow and gas flow in supercritical water gasification, the device comprises a reaction furnace, the upper end and the lower end of the reaction furnace are respectively provided with a sealing end I and a sealing end II; a plurality of graded flowing mechanisms are arranged in a furnace cavity of the reaction furnace, and the furnace cavity in the reaction furnace is divided into a plurality of graded reaction cavities which are distributed from bottom to top and are communicated with one another; a regulation and control cavity is formed in the lower end of the sealing end I, a flow regulation and control system is mounted in the regulation and control cavity, the flow regulation and control system is communicated with the grading reaction cavities adjacent to the flow regulation and control system, and the regulation and control cavity is correspondingly communicated with the grading reaction cavities through a plurality of return pipes; a product outlet communicated with the regulation and control cavity is formed in the sealing end I, and a coal gas inlet and a supercritical water inlet are formed in the sealing end II. According to the invention, the components of the reaction product can be detected and analyzed, so that the supercritical water and the coal gas fully react, and the required high-quality product gas is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of gasifiers, and in particular to a device and method for regulating the flow of water and coal gas in supercritical water gasification. Background Art

[0002] In traditional supercritical water gasification technology, the flow of water and gas is typically controlled using simple nozzles, mixers, or static mixing devices. While these methods can achieve mixing of water and gas to a certain extent, they have several limitations and drawbacks. First, the complex structures of traditional nozzles or mixers are prone to clogging and sediment accumulation, which affects flow properties and reaction results. Second, the flow properties and mixing results of traditional static mixing devices are limited, making it difficult to achieve uniform mixing of water and gas. This can lead to uneven reactions, inconsistent reaction rates, or unsatisfactory product distribution. Finally, traditional methods often lack real-time monitoring and feedback control mechanisms, making it impossible to accurately and timely adjust the flow of water and gas.

[0003] Therefore, it is necessary to provide a device for regulating the flow of water and gas in supercritical water gasification to solve the problems raised in the above background technology. Summary of the Invention

[0004] In view of the above problems, the present invention provides a device and method for regulating the flow of water and gas in supercritical water gasification.

[0005] The purpose of the present invention can be achieved through the following solutions:

[0006] The first aspect of the present invention provides a device for regulating the flow of water and gas in supercritical water gasification, comprising: a reactor, wherein a first sealing end and a second sealing end are respectively provided at the upper and lower ends of the reactor; a plurality of graded flow mechanisms are provided in the reactor cavity, which divide the reactor cavity into a plurality of graded reaction chambers distributed from bottom to top and connected; a regulating chamber is provided at a lower end of the sealing end, a flow regulating system is installed in the regulating chamber, the flow regulating system is connected to the adjacent graded reaction chambers, and the regulating chamber is also connected to the plurality of graded reaction chambers respectively through a plurality of reflux pipes; a product discharge outlet connected to the regulating chamber is provided on the first sealing end, and a gas inlet and a supercritical water inlet are provided on the second sealing end.

[0007] Furthermore, the upper port of the gas inlet is connected to a shell support cover, a through hole is provided on the shell support cover adjacent to the outer shell wall, and a set of graded flow mechanisms is installed on the shell support cover.

[0008] Furthermore, an annular slow-aggregation groove is provided on the second sealing end, and the slow-aggregation groove and the furnace wall of the reactor form a slow-aggregation cavity. A telescopic rod is installed on the second sealing end on one side of the slow-aggregation groove bottom, and a sealing ring is provided on the slow-aggregation groove and is slidably installed on the telescopic rod.

[0009] Furthermore, the flow control system includes: a gas chromatography detection mechanism, a T-shaped shell plate, and a rotator; the T-shaped shell plate is fixed at the central bottom of the control chamber, the upper end of the gas chromatography detection mechanism is connected to the T-shaped shell plate, and the lower end is connected to the adjacent graded reaction chamber; the T-shaped shell plate is provided with a plurality of drainage holes 1 corresponding to each graded reaction chamber; the rotator is installed in the control chamber and arranged above the T-shaped shell plate, a suspension arm is fixed at its lower end, and a connecting pipe is fixed at the outer end of the suspension arm; an air pump is installed on the connecting pipe body, the inner pipe mouth of the connecting pipe passes through and is fixed with a swivel 1 rotatably mounted on the outside of the T-shaped shell plate, and the outer pipe mouth passes through and is fixed with a swivel 2 rotatably mounted on the inner wall of the control chamber, and the swivel 1 is also provided with a drainage hole 2 corresponding to the drainage hole 1.

[0010] Furthermore, the gas chromatography detection mechanism can monitor and analyze the composition of the gas products discharged from the adjacent graded reaction chamber.

[0011] Furthermore, the graded flow mechanism includes: a fixed shell ring, a rotating shell cover and a drainage fan blade; the fixed shell ring is fixed on the furnace wall of the reactor; the rotating shell cover is rotatably assembled on the fixed shell ring, and the shell surface of the rotating shell cover is an upper conical structure; the shell surface of the rotating shell cover is also provided with a stirring fan blade, and the drainage fan blade passes through and is fixed in the middle of the rotating shell cover.

[0012] Furthermore, the pipe opening of the reflux pipe leading into the corresponding graded reaction chamber is aligned with the layer where the outer end of the stirring blade is located.

[0013] Furthermore, the fluid flowing out of the return pipe can generate resistance to the rotation of the stirring blades.

[0014] Furthermore, a T-shaped dispersion disk is fixed through the center of the drainage fan blade, and the upper disk surface of the T-shaped dispersion disk is a downward conical structure.

[0015] Furthermore, a discharge port is provided on the reactor shell located on one side of the fixed shell ring, and a slag collecting device is provided outside the discharge port;

[0016] The slag collection device includes a collection box ring, a driving and regulating wheel, and a sealing ring shell;

[0017] The collecting box ring is fixed outside the furnace wall of the reactor, and a feed port is provided on the inner box wall of the collecting box ring. A rotatable sealing ring shell is installed between the upper end side of the collecting box ring and the furnace wall of the reactor, and sealing shell sheets are distributed on the sealing ring shell. The driving control wheel is installed on the upper end of the collecting box ring and is rollingly connected to the sealing ring shell.

[0018] A second aspect of the present invention provides a method for regulating the flow of water and gas in supercritical water gasification, which is applied to the device for regulating the flow of water and gas in supercritical water gasification as described in any one of the first aspects above, comprising:

[0019] Coal gas and supercritical water are introduced into the reactor from the gas inlet and supercritical water inlet on the second sealing end respectively;

[0020] The coal gas and supercritical water fully react in multiple graded reaction chambers formed by multiple graded flow mechanisms;

[0021] The flow control system analyzes the composition of the product gas entering the adjacent graded reaction chamber to determine whether it meets the preset specification range;

[0022] If it is determined that the product gas meets the preset specification range, the product gas is discharged through the product outlet on the first sealing end; if it is determined that the product gas does not meet the preset specification range, the product gas is introduced into the graded reaction chamber corresponding to the specification range through the reflux pipe.

[0023] Furthermore, the flow control system analyzes the composition of the product gas entering the control chamber to determine whether it meets the preset specification range, specifically including:

[0024] A gas chromatography detection mechanism is provided in the flow control system;

[0025] The gas chromatography detection mechanism is used to monitor and analyze the product gas composition in the adjacent graded reaction chamber to determine whether the product gas composition meets the preset specification range.

[0026] Compared with the prior art, this application has the following beneficial effects:

[0027] Embodiments of the present invention provide an apparatus and method for regulating the flow of water and gas in supercritical water gasification. After gas and supercritical water are introduced into a reactor through a gas inlet and a supercritical water inlet, respectively, a graded flow mechanism separates the reactor chamber containing gas and supercritical water from bottom to top into multiple graded reaction chambers. This facilitates detection and analysis of the composition of reaction products by a flow control system, and facilitates the flow control system to control and intercept product gas flowing toward a product outlet and reflux it into the graded reaction chambers for further reaction. The graded flow mechanism can cooperate with the flow control system to control the relative residence time and mixing effect of the gas products in the graded reaction chambers, and promote the reaction of gas and supercritical water. Through the cooperation of a reflux pipe, an air pump, and the graded flow mechanism, gas of gas and supercritical water that has not fully reacted can be timely controlled to reflux for further reaction, thereby obtaining product gas that meets the required high quality.

[0028] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic structural diagram of a device for regulating the flow of water and gas in supercritical water gasification provided by an embodiment of the present invention is shown;

[0031] Figure 2 for Figure 1 Schematic diagram of the local structure of the lower end;

[0032] Figure 3 for Figure 2 Schematic diagram of partial cross-section structure;

[0033] Figure 4 for Figure 1 Schematic diagram of the upper part structure;

[0034] Figure 5 This is a schematic diagram of the local separation structure of the flow control system;

[0035] Figure 6 It is a partial cross-sectional structural diagram of the graded flow mechanism;

[0036] Figure 7 This is a schematic diagram of the local separation structure of the slag collection device;

[0037] In the figure: 1, reactor; 2, end cap 1; 3, flow control system; 4, end cap 2; 5, graded flow mechanism; 6, reflux pipe; 7, graded reaction chamber; 8, slag collection device; 9, slow aggregation tank; 10, telescopic rod; 11, sealing ring; 12, shell cover; 13, through hole; 14, gas chromatography detection mechanism; 101, discharge port; 21, product discharge port; 22, control chamber; 31, T-shaped shell plate; 32, rotator; 33, Boom; 34. Connecting pipe; 35. Air pump; 36. Rotating ring 1; 37. Rotating ring 2; 311. Drainage hole 1; 361. Drainage hole 2; 41. Gas inlet; 42. Supercritical water inlet; 51. Fixed shell ring; 52. Rotating shell cover; 53. Stirring blades; 54. Drainage blades; 55. T-shaped dispersion disk; 81. Collecting box ring; 82. Drive control wheel; 83. Sealing ring shell; 811. Feed inlet; 831. Sealing shell piece. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0039] Example 1

[0040] According to a first aspect of an embodiment of the present invention, there is provided a device for regulating the flow of water and gas in supercritical water gasification, comprising: a reactor, wherein a first sealing end and a second sealing end are respectively provided at the upper and lower ends of the reactor; a plurality of graded flow mechanisms are provided in the reactor cavity, which divide the internal cavity of the reactor into a plurality of graded reaction chambers distributed from bottom to top and connected; a regulating chamber is provided at a lower end of the sealing end, a flow regulating system is installed in the regulating chamber, the flow regulating system is connected to the adjacent graded reaction chambers, and the regulating chamber is also connected to the plurality of graded reaction chambers respectively through a plurality of reflux pipes; a product discharge outlet connected to the regulating chamber is provided on the first sealing end, and a gas inlet and a supercritical water inlet are provided on the second sealing end.

[0041] In the present application, after coal gas and supercritical water are introduced into the reactor through the coal gas inlet and the supercritical water inlet respectively, the reactor chamber of the coal gas and supercritical water is separated from bottom to top into multiple graded reaction chambers by a graded flow mechanism, so as to cooperate with the flow control system to detect and analyze the composition of the reaction products, and facilitate the flow control system to control and intercept the product gas flowing to the product discharge port, and reflux it into the graded reaction chamber for full reaction again. The graded flow mechanism can cooperate with the flow control system to control the relative residence time and mixing effect of the gas products in the graded reaction chamber, and promote the reaction of the coal gas and supercritical water. In addition, through the cooperation of the reflux pipe, the air pump and the graded flow mechanism, the coal gas and supercritical water gas that have not reacted fully can be timely controlled to reflux for reaction again, thereby obtaining product gas that meets the required high quality.

[0042] In the embodiment of the present invention, see Figure 3 The upper end of the gas inlet 41 in the second sealing end 4 is connected to the shell support cover 12. The shell support cover 12 is provided with a through hole 13 near the outer shell wall. A set of graded flow mechanisms 5 is also installed on the shell support cover 12. That is, this set of graded flow mechanisms 5 is located at the lowest end of the reactor 1, so that a stable reaction chamber is formed between the two lowest sets of graded flow mechanisms. In addition, since the distribution amount and density of supercritical water at the lower end are relatively high, in order to ensure sufficient reaction of a large amount of coal gas and supercritical water, it is necessary to avoid diluting the relatively high concentration of coal gas and supercritical water in the stable reaction chamber by the gas introduced by reflux, so as to ensure efficient reaction of the coal gas and supercritical water.

[0043] In the embodiment of the present invention, see Figure 1 and Figure 2 , the said end cap 2 4 is also provided with an annular slow-aggregation groove 9, which forms a slow-aggregation cavity with the wall of the reactor 1, and a telescopic rod 10 is installed on the end cap 2 4 on the bottom side of the slow-aggregation groove 9, and a sealing ring 11 installed on the telescopic rod 10 is slid on the slow-aggregation groove 9. Specifically, when the flow control system 3 is in operation, in order to ensure the entry stability of coal gas and supercritical water, the telescopic rod 10 is used to control the downward movement of the sealing ring 11 to generate a certain slow-aggregation cavity for accumulating the incoming coal gas and supercritical water. Among them, as a preferred embodiment, the synchronization setting is performed by adopting the method that the increment of the flow volume of coal gas and supercritical water per unit time under equal pressure conditions is equal to the increment of the volume of the slow-aggregation cavity.

[0044] In the embodiment of the present invention, see Figure 4The flow control system 3 includes a gas chromatography detection mechanism 14, a T-shaped shell plate 31, and a rotator 32. The T-shaped shell plate 31 is fixed to the center bottom of the control chamber 22. The gas chromatography detection mechanism 14 is connected to the T-shaped shell plate 31 at its upper end and to the adjacent graded reaction chamber 7 at its lower end. The T-shaped shell plate 31 is provided with a plurality of drainage holes 311 corresponding to each graded reaction chamber 7. The rotator 32 is installed in the regulating chamber 22 and is arranged above the T-shaped shell plate 31. A hanging arm 33 is fixed at its lower end, and a connecting pipe 34 is fixed at the outer end of the hanging arm 33. An air pump 35 is installed on the tube body of the connecting pipe 34. The inner pipe mouth of the connecting pipe 34 passes through and is fixed with a rotating ring 1 36 rotatably installed on the outside of the T-shaped shell plate 31, and the outer pipe mouth passes through and is fixed with a rotating ring 2 37 rotatably installed on the inner wall of the regulating chamber 22, and the rotating ring 1 36 is also provided with a drainage hole 2 361 that can be connected with the drainage hole 1 311; that is, when the drainage hole 2 361 is aligned and connected with the drainage hole 1 311, the generated gas product enters the regulating chamber 22 and is discharged through the product discharge port 21; when the drainage hole 1 311 is aligned and connected with the connecting pipe 34, the product gas flows into the corresponding multi-stage reaction chamber 7 through the reflux pipe.

[0045] During specific implementation, it is necessary to set the inlet flow rate of coal gas and supercritical water in advance. After the reaction in the furnace chamber of the reactor 1 is stable and the product gas meets the required specification range, the range of the relatively stable product gas component content in each graded reaction chamber 7 is measured and divided from bottom to top into P1, P2, P3, and P4.

[0046] The gas chromatography detection mechanism 14 can monitor and analyze the product gas composition at the discharge of the adjacent graded reaction chamber, and judge whether the content of the reaction conversion product of supercritical water and coal gas is within the required specification range. If the generated product gas composition is not within the required specification range, then it is judged that a range interval close to it, for example, close to P2, indicates that the reaction of the reactants (coal gas and supercritical water) in the graded reaction chamber above P2 is insufficient. Therefore, the connecting pipe 34 is driven by the rotator 32 to connect the corresponding reflux pipe 6 with the drainage hole 1 311, and the gas reflux is flowed into the graded reaction chamber 7 in the P2 range interval through the suction action of the air pump 35, thereby adjusting the sufficient reaction of the reactants in the graded reaction chamber above P2.

[0047] In this embodiment, refer to Figure 2 and Figure 6The graded flow mechanism 5 includes a fixed shell ring 51, a rotating shell cover 52, and a drainage blade 54. The fixed shell ring 51 is fixed to the furnace wall of the reactor 1, and the rotating shell cover 52 is rotatably assembled on the fixed shell ring 51. The shell surface of the rotating shell cover 52 is configured in an upward conical structure, and the shell surface of the rotating shell cover 52 is also provided with a stirring blade 53. The drainage blade 54 passes through and is fixed to the middle of the rotating shell cover 52. Among them, when the coal gas, supercritical water, or product gas passes through the drainage blade 54, it will drive the drainage blade 54 and the rotating shell cover 52 to rotate, thereby driving the stirring blade 53 to rotate synchronously, thereby stirring and mixing the fluid in the multi-stage reaction chamber.

[0048] In this embodiment, the nozzle of the reflux pipe 6 introduced into the corresponding graded reaction chamber 7 is aligned with the layer where the outer end of the turbulence blade 53 is located; the fluid flowing out of the reflux pipe 6 can generate resistance to the rotation of the turbulence blade 53; that is, by regulating the flow rate of the fluid in the reflux pipe 6 through the air pump 35, it can play the role of blocking the turbulence blade 53, thereby relatively extending the residence flow time of the reactants in the corresponding multi-stage reaction chamber 7, and then allowing them to fully react until the product gas composition reaches the required specification range.

[0049] In this embodiment, refer to Figure 2 and Figure 6 A T-shaped dispersion plate 55 is fixed through the center of the drainage blade 54. The upper plate surface of the T-shaped dispersion plate 55 is a downward conical structure, so as to better disperse and mix the coal gas and supercritical water.

[0050] In this embodiment, refer to Figure 2 and Figure 7 A discharge port 101 is provided on the reactor shell 1 on one side of the fixed shell ring 51, and a slag collection device 8 is provided outside the discharge port 101. The slag collection device 8 comprises a collection box ring 81, a drive and control wheel 82, and a sealing ring shell 83. The collection box ring 81 is fixed to the outside of the reactor wall 1, and its inner wall is provided with a feed port 811. A rotatable sealing ring shell 83 is installed between its upper end and the reactor wall 1. The sealing ring shell 83 is provided with sealing shell pieces 831. The drive and control wheel 82 is mounted on the upper end of the collection box ring 81 and is in rolling connection with the sealing ring shell 83. The sealing shell pieces 831 are used to cooperate with the discharge port 101.

[0051] Example 2

[0052] A second aspect of an embodiment of the present invention provides a method for regulating the flow of water and gas in supercritical water gasification, which is applied to the apparatus for regulating the flow of water and gas in supercritical water gasification as described in any one of the first embodiments above, comprising:

[0053] Step S100: Coal gas and supercritical water are introduced into the reactor from the gas inlet and supercritical water inlet on the second sealing end, respectively;

[0054] Step S200: The coal gas and supercritical water are fully reacted in a plurality of graded reaction chambers formed by a plurality of graded flow mechanisms;

[0055] Step S300: The flow control system analyzes the composition of the product gas entering the adjacent graded reaction chamber to determine whether it meets the preset specification range;

[0056] Step S400: If it is determined that the product gas meets the preset specification range, the product gas is discharged through the product outlet on the first sealing end; if it is determined that the product gas does not meet the preset specification range, the product gas is introduced into the graded reaction chamber corresponding to the specification range through the reflux pipe.

[0057] The flow control system analyzes the composition of the product gas entering the control chamber to determine whether it meets the preset specification range, specifically including:

[0058] A gas chromatography detection mechanism is provided in the flow control system;

[0059] The gas chromatography detection mechanism is used to monitor and analyze the product gas composition in the adjacent graded reaction chamber to determine whether the product gas composition meets the preset specification range.

[0060] If it is determined that the product gas does not meet the preset specification range, the product gas is introduced into the graded reaction chamber corresponding to the specification range through the reflux pipe, specifically including:

[0061] It is necessary to set the inlet flow rate of coal gas and supercritical water in advance. After the furnace chamber of the reactor has stabilized and the product gas meets the required specifications, the range of the relatively stable product gas component content in each graded reaction chamber is measured and divided from bottom to top into P1, P2, P3, and P4.

[0062] The gas chromatography detection mechanism can monitor and analyze the product gas composition at the discharge of the adjacent graded reaction chamber to determine whether the reaction conversion product content of supercritical water and coal gas is within the required specification range. If the generated product gas composition is not within the required specification range, then it is judged that a range interval close to it, for example, close to P2, indicates that the reaction of the reactants (coal gas and supercritical water) in the graded reaction chamber above P2 is insufficient. Therefore, the gas is refluxed into the graded reaction chamber in the P2 range, thereby adjusting the sufficient reaction of the reactants in the graded reaction chamber and above.

[0063] Compared with the prior art, the beneficial effects of the method for regulating the flow of water and gas in supercritical water gasification provided by the present invention are the same as the beneficial effects of the device for regulating the flow of water and gas in supercritical water gasification provided in Example 1 of the present invention, and will not be repeated here.

[0064] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for regulating the flow of water and gas in supercritical water gasification, characterized in that: include: A reactor (1), wherein a sealing end 1 (2) and a sealing end 2 (4) are respectively provided at the upper and lower ends of the reactor (1); a plurality of graded flow mechanisms (5) are provided in the furnace chamber of the reactor (1), which divide the furnace chamber inside the reactor (1) into a plurality of graded reaction chambers (7) distributed from bottom to top and connected; a control chamber (22) is provided at the lower end of the sealing end 1 (2), a flow control system (3) is installed in the control chamber (22), the flow control system (3) is connected to the adjacent graded reaction chambers, and the control chamber (22) is also connected to the plurality of graded reaction chambers (7) respectively through a plurality of reflux pipes (6); a product discharge port (21) connected to the control chamber (22) is provided on the sealing end 1 (2), and a coal gas inlet (41) and a supercritical water inlet (42) are provided on the sealing end 2 (4).

2. The device according to claim 1, characterized in that The upper end of the gas inlet (41) is connected to a shell support cover (12), a through hole (13) is provided on the shell support cover (12) adjacent to the outer shell wall, and a set of graded flow mechanisms is installed on the shell support cover (12).

3. The device according to claim 1, characterized in that The second sealing end (4) is also provided with an annular slow-aggregation groove (9), and the slow-aggregation groove (9) and the furnace wall of the reaction furnace (1) form a slow-aggregation cavity. A telescopic rod (10) is installed on the second sealing end (4) on one side of the bottom of the slow-aggregation groove (9), and a sealing ring (11) is provided on the slow-aggregation groove (9) and is slidably installed on the telescopic rod (10).

4. The device according to claim 1, characterized in that The flow control system (3) comprises: a gas chromatography detection mechanism (14), a T-shaped shell plate (31), and a rotator (32); the T-shaped shell plate (31) is fixed at the center bottom of the control chamber (22); the upper end of the gas chromatography detection mechanism (14) is connected to the T-shaped shell plate (31), and the lower end is connected to the adjacent graded reaction chamber; the T-shaped shell plate (31) is provided with a plurality of drainage holes (311) corresponding to each graded reaction chamber; the rotator (32) is installed in the control chamber (22) and is arranged on the T-shaped shell plate. A suspension arm (33) is fixed at the lower end of the T-shaped shell plate (31), and a connecting pipe (34) is fixed at the outer end of the suspension arm (33); an air pump (35) is installed on the tube body of the connecting pipe (34); an inner pipe opening of the connecting pipe (34) passes through and is fixed with a swivel ring (36) rotatably mounted on the outside of the T-shaped shell plate (31), and an outer pipe opening passes through and is fixed with a swivel ring (37) rotatably mounted on the inner wall of the control chamber (22), and a drainage hole (361) corresponding to the drainage hole (311) is also provided on the swivel ring (36).

5. The device according to claim 4, characterized in that The gas chromatography detection mechanism (14) is capable of monitoring and analyzing the gas product components at the discharge of the adjacent graded reaction chamber.

6. The device according to claim 1, characterized in that The graded flow mechanism (5) comprises: a fixed shell ring (51), a rotating shell cover (52) and a drainage blade (54); the fixed shell ring (51) is fixed on the furnace wall of the reaction furnace (1); the rotating shell cover (52) is rotatably assembled on the fixed shell ring (51), and the shell surface of the rotating shell cover (52) presents an upward conical structure; the shell surface of the rotating shell cover (52) is also provided with a stirring blade (53), and the drainage blade (54) penetrates and is fixed to the middle part of the rotating shell cover (52).

7. The device according to claim 6, characterized in that The pipe opening of the reflux pipe (6) leading into the corresponding graded reaction chamber is aligned with the layer where the outer end of the stirring blade (53) is located.

8. The device according to claim 7, characterized in that The fluid flowing out of the return pipe (6) can generate resistance against the rotation of the stirring blade (53).

9. The device according to claim 6, characterized in that A T-shaped dispersion disk (55) is fixed through the center of the drainage blade (54), and the upper disk surface of the T-shaped dispersion disk (55) is a downward conical structure.

10. The device according to claim 6, characterized in that A discharge port (101) is provided on the furnace shell of the reaction furnace (1) located on one side of the fixed shell ring (51), and a slag collecting device (8) is provided outside the discharge port (101); The slag collecting device (8) comprises a collecting box ring (81), a driving and regulating wheel (82) and a sealing ring shell (83); The collecting box ring (81) is fixed outside the furnace wall of the reaction furnace (1); the inner box wall of the collecting box ring (81) is provided with a feed port (811); a rotatable blocking ring shell (83) is installed between the upper end side of the collecting box ring (81) and the furnace wall of the reaction furnace (1); blocking shell pieces (831) are distributed on the blocking ring shell (83); the driving control wheel (82) is installed at the upper end of the collecting box ring (81) and is in rolling connection with the blocking ring shell (83).

11. A method for regulating the flow of water and gas in supercritical water gasification, characterized in that: The device for regulating the flow of water and gas in supercritical water gasification as claimed in any one of claims 1 to 10 comprises: Coal gas and supercritical water are introduced into the reactor from the gas inlet and supercritical water inlet on the second sealing end respectively; The coal gas and supercritical water fully react in multiple graded reaction chambers formed by multiple graded flow mechanisms; The flow control system analyzes the composition of the product gas entering the adjacent graded reaction chamber to determine whether it meets the preset specification range; If it is determined that the product gas meets the preset specification range, the product gas is discharged through the product outlet on the first sealing end; if it is determined that the product gas does not meet the preset specification range, the product gas is introduced into the graded reaction chamber corresponding to the specification range through the reflux pipe.

12. The method according to claim 11, characterized in that The flow control system analyzes the composition of the product gas entering the control chamber to determine whether it meets the preset specification range, specifically including: A gas chromatography detection mechanism is provided in the flow control system; The gas chromatography detection mechanism is used to monitor and analyze the product gas composition in the adjacent graded reaction chamber to determine whether the product gas composition meets the preset specification range.

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