A method and device for uniform water distribution and automatic flow interruption detection of a rising pipe

Abstract

The present invention discloses a method and device for uniform water distribution and automatic flow interruption detection of a riser, comprising a riser, a first delivery pipe, a heat exchange pipe and a second delivery pipe, wherein an outlet pipe manual stop valve and an outlet pipe electric switch valve are installed in front of the outlet of the riser, and a vent pipe manual stop valve and a vent pipe electric switch valve are installed on the outlet vent pipe of the riser, and the vent pipe electric switch valve is farther away from the riser than the vent pipe manual stop valve. The method and device for uniform water distribution and automatic flow interruption detection of a riser can automatically cut off the inlet and outlet water of a single riser, reduce manual operation, automatically detect whether a single riser is short of water or has too much water, and give an alarm in time to ensure uniform water distribution of the system, avoid local water shortage and dry burning of the riser, avoid excessive heat extraction caused by excessive water, reduce the energy consumption of the coking process by ≥20kg standard coal / t coke, and the water in the heat exchange pipe is evenly distributed inside the riser, and the medium is evenly distributed inside the riser.

Description

Technical Field

[0001] The invention relates to the technical field of waste heat recovery of coke oven riser pipes, and in particular to a method and a device for uniform water distribution and automatic flow interruption detection of a riser pipe. Background Art

[0002] Coke ovens consume a lot of energy during the coking process, and the energy consumed is divided into: 1. Heat from red coke accounts for about 37%, which has been recycled through dry quenching; 2. Heat from exhaust gas in the flue of the coke oven accounts for about 17%, which is recycled through flue gas waste heat recovery or coal moisture adjustment; 3. Heat loss from the furnace surface accounts for about 10%, which is reduced by furnace insulation; 4. Heat from high-temperature raw coal gas of 600-800℃ accounts for about 36%, which is mainly recycled through riser waste heat recovery technology;

[0003] In recent years, the technology of waste heat recovery system for raw coal gas riser in coke oven has gradually matured and become the standard for new coke ovens and renovated coke ovens in the coking industry. Because of the complex layout of the furnace top pipeline, sometimes the system is unstable and some operational errors lead to uneven water distribution in the waste heat recovery system of the riser, which affects the water flow of a single riser, causing the riser to be partially short of water and dry burning and excessive heat extraction. If the on-site engineering personnel do not find it in time, the service life of the riser will be reduced under the high and low temperature thermal strain of 650-850℃ high-temperature raw coal gas and about 180℃ deoxygenated water; at the same time, because the riser extracts too much heat, the raw coal gas outlet temperature is ≤500℃, and the inner wall of the riser is tarred and graphite is hung to emit black smoke, causing serious environmental problems. And when the staff finds that the riser is short of water and dry burning and emits black smoke, they can only manually close the inlet and outlet valves of the riser, which is not timely, convenient and safe enough. Therefore, we propose a method and device for uniform water distribution and automatic flow interruption detection of the riser to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a method and device for uniform water distribution and automatic flow interruption detection of a riser, which can automatically cut off the water inlet and outlet of a single riser, reduce manual operation, automatically detect whether a single riser is short of water or has too much water, and give an alarm in time to ensure uniform water distribution of the system, avoid dry burning of the riser due to local water shortage, avoid excessive heat extraction due to excessive water volume, reduce the energy consumption of the coking process by ≥20kg standard coal / t coke, and the water in the heat exchange tube is evenly distributed inside the riser, and the medium is evenly distributed inside the riser.

[0005] To achieve the above object, the present invention provides the following technical solution: a device for uniform water distribution and automatic flow interruption detection of a riser, comprising a riser, a first delivery pipe, a heat exchange pipe, and a second delivery pipe:

[0006] A flow meter is installed on the inlet pipeline of the riser, and a manual throttle valve and an electric switch valve for the water inlet pipe are installed in front of the inlet of the riser, an outlet pipe manual stop valve and an electric switch valve for the water outlet pipe are installed in front of the outlet of the riser, a manual stop valve for the discharge pipe and an electric switch valve for the discharge pipe are installed on the outlet vent pipe of the riser, the electric switch valve for the discharge pipe is farther away from the riser than the manual stop valve for the discharge pipe, and the electric switch valve for the water inlet pipe, the electric switch valve for the water outlet pipe and the electric switch valve for the discharge pipe are all interlocked with the flow signal of the flow meter;

[0007] A receiving ring with a serrated outer end is fixed to the outer side of the first conveying pipe, and a first mounting seat is arranged on the outer side of the receiving ring, a high temperature resistant motor is fixed to the left side of the first mounting seat, and a gear is fixed to the output end of the high temperature resistant motor, the gear is meshed with the receiving ring, a screw is fixed to the outer side of the gear, a moving ring is threadedly connected to the outer end of the screw, a rectangular block is fixed to the right side of the moving ring, and a limiting groove is opened at the right end of the rising pipe;

[0008] The heat exchange tube is located inside the riser;

[0009] The end of the heat exchange tube is connected to a second delivery tube, and a second mounting seat is arranged on the outer side of the second delivery tube.

[0010] By adopting the above technical scheme, the water inlet and outlet of a single riser can be automatically cut off, manual operation can be reduced, and whether a single riser is short of water or has too much water can be automatically detected, and an alarm can be given in time to ensure that the system is evenly distributed with water, avoid dry burning of the riser due to local lack of water, and avoid excessive heat extraction due to excessive water volume. The energy consumption of the coking process is reduced by ≥20kg standard coal / t coke, and the water in the heat exchange tube is evenly distributed inside the riser, and the medium is evenly distributed inside the riser.

[0011] As a preferred technical solution of the present invention, the water inlet pipe electric switch valve is closer to the riser than the manual throttle valve.

[0012] By adopting the above technical solution, since the electric switch valve of the water inlet pipe is closer to the riser than the manual throttle valve, after closing the electric switch valve of the water inlet pipe, the water flowing through the manual throttle valve no longer enters the riser.

[0013] As a preferred technical solution of the present invention, the electric switch valve of the water outlet pipe is closer to the riser than the manual stop valve of the outlet pipe.

[0014] By adopting the above technical solution, since the electric switch valve of the water outlet pipe is closer to the riser than the manual stop valve of the outlet pipe, after closing the electric switch valve of the water outlet pipe, the water flowing through the manual stop valve of the outlet pipe no longer enters the riser.

[0015] As a preferred technical solution of the present invention, a first delivery pipe is fixed to one end of the heat exchange pipe away from the second delivery pipe, and a center line of the first delivery pipe coincides with a center line of the second delivery pipe.

[0016] By adopting the above technical solution, since the center line of the first conveying pipe coincides with the center line of the second conveying pipe, the first conveying pipe and the second conveying pipe rotate in concentric circles.

[0017] As a preferred technical solution of the present invention, the first mounting seat and the second mounting seat are both fixedly connected to the riser, and the second mounting seat is internally rotatably connected to the end of the screw rod.

[0018] By adopting the above technical solution, since the second mounting seat is internally rotatably connected to the end of the screw rod, the second mounting seat is used to support the screw rod.

[0019] As a preferred technical solution of the present invention, the rectangular block is located inside the defined groove.

[0020] By adopting the above technical solution, since the rectangular block is located inside the limiting groove, the moving track of the moving ring is limited by the rectangular block, thereby preventing the moving ring from rotating.

[0021] As a preferred technical solution of the present invention, the support rods arranged at equal angles at the outer end of the second conveying pipe are embedded in the annular groove opened at the inner end of the second mounting seat.

[0022] By adopting the above technical solution, since the support rods arranged at equal angles at the outer end of the second conveying pipe are embedded in the annular groove opened at the inner end of the second mounting seat, the second conveying pipe is supported by the second mounting seat.

[0023] As a preferred technical solution of the present invention, the inlet pipe of the riser is connected to the first delivery pipe through a rotating sealing ring, and the outlet pipe of the riser is connected to the second delivery pipe through a rotating sealing ring.

[0024] By adopting the above technical solution, since the inlet pipe of the riser is connected to the first delivery pipe through a rotating sealing ring, and the outlet pipe of the riser is connected to the second delivery pipe through a rotating sealing ring, the sealing performance is improved.

[0025] A method for uniform water distribution and automatic flow interruption detection device of a riser pipe, the method for uniform water distribution and automatic flow interruption detection device of a riser pipe comprises the following steps;

[0026] Step 1: The flow meter detects that the flow value in the water inlet pipe is less than 0.5t / h, and the automatic alarm signal is transmitted to the sound and light alarm in the central control room. At the same time, the control system transmits the "close" signal of the electric switch valve of the water inlet pipe, the "close" signal of the electric switch valve of the water outlet pipe, and the "open" signal of the electric switch valve of the vent pipe;

[0027] Step 2: After receiving the alarm, the personnel in the central control room remind the on-site operator on the furnace top to check the problem and increase the opening of the manual throttle valve of the water inlet pipe;

[0028] Step 3: When the flow meter detects that the flow value in the water inlet pipe is greater than 1.5t / h, the automatic alarm signal is transmitted to the central control room for sound and light alarm, and the control system transmits the "close" signal of the electric switch valve of the water inlet pipe, the "close" signal of the electric switch valve of the water outlet pipe, and the "open" signal of the electric switch valve of the vent pipe;

[0029] Step 4: After receiving the alarm, the personnel in the central control room remind the on-site operators on the furnace top to investigate the problem and reduce the opening of the manual throttle valve of the water inlet pipe to reduce the water inlet volume of the riser.

[0030] Compared with the prior art, the invention has the following beneficial effects: the method and device for uniform water distribution and automatic flow interruption detection of the riser can automatically cut off the water inlet and outlet of a single riser, reduce manual operation, automatically detect whether a single riser is short of water or has too much water, and give an alarm in time to ensure uniform water distribution of the system, avoid local dry burning of the riser due to lack of water, avoid excessive heat extraction caused by excessive water volume, reduce the energy consumption of the coking process by ≥20kg standard coal / t coke, and the water in the heat exchange tube is evenly distributed inside the riser, and the medium is evenly distributed inside the riser;

[0031] 1. The electric switch valves of the water inlet pipe, the water outlet pipe and the vent pipe can automatically cut off the water inlet and outlet of a single riser, reducing manual operation. The flow meter automatically detects whether a single riser is short of water or has too much water, and promptly alarms to ensure uniform water distribution in the system, avoid local dry burning of the riser due to lack of water, and avoid excessive heat extraction due to excessive water volume. The energy consumption of the coking process is reduced by ≥20kg standard coal / t coke;

[0032] 2. The rotation of the gear drives the receiving ring to rotate, thereby rotating the heat exchange tube, and the water inside the heat exchange tube rotates inside the riser tube, so that the water in the heat exchange tube is evenly distributed inside the riser tube;

[0033] 3. The rotation of the screw rod causes the moving ring to move inside the riser, stirring the medium inside the riser so that the medium is evenly distributed inside the riser. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the internal cross-sectional structure of the riser of the present invention;

[0035] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0036] Figure 3 For the present invention Figure 1 The enlarged structural diagram at B in the middle;

[0037] Figure 4 It is a schematic diagram of the connection structure between the second delivery pipe and the second mounting seat of the present invention;

[0038] Figure 5 It is a schematic diagram of the connection structure between the gear and the receiving ring of the present invention;

[0039] Figure 6 This is a schematic diagram of the connection structure between the moving ring and the rectangular block of the present invention;

[0040] Figure 7 It is a flow chart of the present invention.

[0041] In the figure: 1. Rising pipe; 2. Flow meter; 3. Electric switching valve for water inlet pipe; 4. Electric switching valve for water outlet pipe; 5. Electric switching valve for vent pipe; 6. Manual throttle valve; 7. Manual stop valve for outlet pipe; 8. Manual stop valve for vent pipe; 9. Rectangular block; 10. First delivery pipe; 11. Receiver ring; 12. First mounting seat; 13. High temperature resistant motor; 14. Gear; 15. Screw; 16. Moving ring; 17. Limiting groove; 18. Heat exchange pipe; 19. Second mounting seat; 20. Second delivery pipe. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-7 The present invention provides a technical solution: a device for uniform water distribution and automatic flow interruption detection of a rising pipe, comprising a rising pipe 1, a flow meter 2, an electric switch valve for an inlet pipe 3, an electric switch valve for an outlet pipe 4, an electric switch valve for a vent pipe 5, a manual throttle valve 6, a manual stop valve 7, a manual stop valve for a vent pipe 8, a rectangular block 9, a first delivery pipe 10, a receiving ring 11, a first mounting seat 12, a high temperature resistant motor 13, a gear 14, a screw rod 15, a moving ring 16, a limiting groove 17, a heat exchange pipe 18, a second mounting seat 19 and a second delivery pipe 20, a rising pipe A flow meter 2 is installed on the inlet pipeline of 1, and a manual throttle valve 6 and an inlet pipe electric switch valve 3 are installed in front of the inlet of the riser 1, an outlet pipe manual stop valve 7 and an outlet pipe electric switch valve 4 are installed in front of the outlet of the riser 1, and a vent pipe manual stop valve 8 and a vent pipe electric switch valve 5 are installed on the outlet vent pipe of the riser 1. The vent pipe electric switch valve 5 is farther away from the riser 1 than the vent pipe manual stop valve 8. The inlet pipe electric switch valve 3, the outlet pipe electric switch valve 4 and the vent pipe electric switch valve 5 are all interlocked with the flow signal of the flow meter 2;

[0044] A receiving ring 11 with a serrated outer end is fixed to the outer side of the first conveying pipe 10, and a first mounting seat 12 is arranged on the outer side of the receiving ring 11, a high temperature resistant motor 13 is fixed to the left side of the first mounting seat 12, and a gear 14 is fixed to the output end of the high temperature resistant motor 13, the gear 14 is meshed and connected with the receiving ring 11, a screw rod 15 is fixed to the outer side of the gear 14, and a moving ring 16 is threadedly connected to the outer end of the screw rod 15, a rectangular block 9 is fixed to the right side of the moving ring 16, and a limiting groove 17 is opened at the right end of the rising pipe 1;

[0045] The heat exchange tube 18 is located inside the riser 1;

[0046] The end of the heat exchange tube 18 is connected to a second delivery tube 20, and a second mounting seat 19 is disposed outside the second delivery tube 20;

[0047] like Figure 1 As shown, the water inlet pipe electric switch valve 3 is closer to the riser 1 than the manual throttle valve 6. Since the water inlet pipe electric switch valve 3 is closer to the riser 1 than the manual throttle valve 6, after closing the water inlet pipe electric switch valve 3, the water flowing through the manual throttle valve 6 no longer enters the riser 1.

[0048] like Figure 1 As shown, the electric switch valve 4 of the water outlet pipe is closer to the riser 1 than the manual stop valve 7 of the outlet pipe. Since the electric switch valve 4 of the water outlet pipe is closer to the riser 1 than the manual stop valve 7 of the outlet pipe, after closing the electric switch valve 4 of the water outlet pipe, the water flowing through the manual stop valve 7 of the outlet pipe no longer enters the riser 1.

[0049] like Figure 1 As shown, the first delivery pipe 10 is fixed to one end of the heat exchange tube 18 away from the second delivery pipe 20, and the center line of the first delivery pipe 10 coincides with the center line of the second delivery pipe 20. Since the center line of the first delivery pipe 10 coincides with the center line of the second delivery pipe 20, the first delivery pipe 10 and the second delivery pipe 20 rotate concentrically.

[0050] like Figure 1 , Figure 2 and Figure 3 As shown, the first mounting seat 12 and the second mounting seat 19 are both fixedly connected to the riser 1, and the internal rotation of the second mounting seat 19 is connected to the end of the screw rod 15. Since the internal rotation of the second mounting seat 19 is connected to the end of the screw rod 15, the second mounting seat 19 is used to support the screw rod 15, and the rectangular block 9 is located inside the limiting groove 17. Since the rectangular block 9 is located inside the limiting groove 17, the moving trajectory of the moving ring 16 is limited by the rectangular block 9 to prevent the moving ring 16 from rotating.

[0051] like Figure 1 and Figure 4As shown, the support rods arranged at equal angles at the outer end of the second delivery pipe 20 are embedded in the annular groove opened at the inner end of the second mounting seat 19. Since the support rods arranged at equal angles at the outer end of the second delivery pipe 20 are embedded in the annular groove opened at the inner end of the second mounting seat 19, the second mounting seat 19 is used to support the second delivery pipe 20.

[0052] like Figure 1 As shown, the inlet pipe of the riser 1 is connected to the first delivery pipe 10 through a rotating seal ring, and the outlet pipe of the riser 1 is connected to the second delivery pipe 20 through a rotating seal ring. Since the inlet pipe of the riser 1 is connected to the first delivery pipe 10 through a rotating seal ring, and the outlet pipe of the riser 1 is connected to the second delivery pipe 20 through a rotating seal ring, the sealing performance is improved;

[0053] Step 1 of uniform water distribution and detection: When the flow meter detects that the flow value in the water inlet pipe is less than 0.5t / h, the automatic alarm signal is transmitted to the sound and light alarm in the central control room, and at the same time, the control system transmits the "close" signal of the electric switch valve 3 of the water inlet pipe, the "close" signal of the electric switch valve 4 of the water outlet pipe, and the "open" signal of the electric switch valve 5 of the discharge pipe;

[0054] Step 2: After receiving the alarm, the personnel in the central control room remind the on-site operator on the furnace top to check the problem and increase the opening of the manual throttle valve 6 of the water inlet pipe;

[0055] Step 3: When the flow meter detects that the flow value in the water inlet pipe is greater than 1.5t / h, the automatic alarm signal is transmitted to the central control room for sound and light alarm, and the control system transmits the "close" signal of the water inlet pipe electric switch valve 3, the "close" signal of the water outlet pipe electric switch valve 4, and the "open" signal of the discharge pipe electric switch valve 5;

[0056] Step 4: After receiving the alarm, the personnel in the central control room remind the on-site operator on the furnace top to check the problem and reduce the opening of the manual throttle valve 6 of the water inlet pipe to reduce the water inflow of the riser;

[0057] When using the method and device for uniform water distribution and automatic flow interruption detection of the riser pipe, if Figure 1 As shown, each riser 1 is provided with a flow meter 2, an electric switch valve for an inlet pipe 3, an electric switch valve for an outlet pipe 4, an electric switch valve for a discharge pipe 5, a manual throttle valve 6, a manual stop valve 7 and a manual stop valve for a discharge pipe 8. The minimum flow value is set to 0.5 t / h and the maximum flow value is set to 1.5 t / h in the control system. The setting of the minimum and maximum flow values ​​is calculated and determined according to parameters such as the coke oven model and the specific size of the riser 1;

[0058] When the flow meter 2 detects that the flow value in the water inlet pipe of the riser 1 is less than 0.5t / h, the automatic alarm signal is transmitted to the central control room for sound and light alarm, and at the same time, the control system transmits the "close" signal of the water inlet pipe electric switch valve 3, the "close" signal of the water outlet pipe electric switch valve 4, and the "open" signal of the vent pipe electric switch valve 5. After receiving the alarm, the central control room personnel remind the on-site operator on the furnace top to check the problem and increase the opening of the manual throttle valve 6;

[0059] When the flow meter 2 detects that the flow value in the water inlet pipe of the riser 1 is greater than 1.5t / h, the automatic alarm signal is transmitted to the central control room for sound and light alarm, and the control system transmits the "close" signal of the electric switch valve 3 of the water inlet pipe, the "close" signal of the electric switch valve 4 of the water outlet pipe, and the "open" signal of the electric switch valve 5 of the vent pipe. After receiving the alarm, the personnel in the central control room remind the on-site operator of the furnace top to check the problem, close the opening of the manual throttle valve 6, reduce the water inlet of the riser 1, and avoid excessive heat extraction resulting in the temperature of the raw gas at the outlet of the riser 1 ≤500℃, resulting in coked graphite hanging on the inner wall of the riser and black smoke, so as to ensure the uniform water distribution and environmental protection of the whole system;

[0060] Water flows inside the heat exchange tube 18. While flowing, the high temperature resistant motor 13 is turned on. The high temperature resistant motor 13 drives the gear 14, the screw rod 15 and the moving ring 16 to rotate. The gear 14 is meshed and connected with the receiving ring 11, thereby driving the receiving ring 11 to rotate, so that the first delivery pipe 10, the receiving ring 11, the heat exchange tube 18 and the second delivery pipe 20 rotate, so that the water in the heat exchange tube 18 is evenly distributed inside the riser 1;

[0061] The rotation of the screw rod 15 drives the moving ring 16 to move, and the rectangular block 9 on the moving ring 16 moves inside the limiting groove 17. The movement of the moving ring 16 is used to stir the gas in the riser 1, so that the temperature of the gas in the riser 1 is evenly distributed. The above completes a series of operations of the method and device for uniform water distribution and automatic flow interruption detection of the riser. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for uniform water distribution and automatic flow interruption detection in a riser, comprising a riser (1), a first delivery pipe (10), a heat exchange pipe (18) and a second delivery pipe (20), characterized in that: A flow meter (2) is installed on the inlet pipeline of the riser (1), and a manual throttle valve (6) and an inlet pipe electric switch valve (3) are installed in front of the inlet of the riser (1); an outlet pipe manual stop valve (7) and an outlet pipe electric switch valve (4) are installed in front of the outlet of the riser (1); a discharge pipe manual stop valve (8) and a discharge pipe electric switch valve (5) are installed on the outlet discharge pipe of the riser (1); the discharge pipe electric switch valve (5) is farther away from the riser (1) than the discharge pipe manual stop valve (8); the inlet pipe electric switch valve (3), the outlet pipe electric switch valve (4) and the discharge pipe electric switch valve (5) are all interlocked with the flow signal of the flow meter (2); A receiving ring (11) having a sawtooth-shaped outer end is fixed to the outer side surface of the first conveying pipe (10), and a first mounting seat (12) is arranged on the outer side of the receiving ring (11); a high-temperature resistant motor (13) is fixed to the left side of the first mounting seat (12), and a gear (14) is fixed to the output end of the high-temperature resistant motor (13), the gear (14) is meshedly connected with the receiving ring (11); a screw rod (15) is fixed to the outer side surface of the gear (14), the outer end of the screw rod (15) is threadedly connected to a moving ring (16), a rectangular block (9) is fixed to the right side surface of the moving ring (16), and a limiting groove (17) is provided at the right end of the rising pipe (1); The heat exchange tube (18) is located inside the riser (1); The end of the heat exchange tube (18) is connected to a second delivery tube (20), and a second mounting seat (19) is arranged on the outer side of the second delivery tube (20). The water inlet and outlet of a single riser can be automatically cut off by means of an electric switch valve of the water inlet pipe, an electric switch valve of the water outlet pipe and an electric switch valve of the vent pipe. The flow meter automatically detects whether the single riser is short of water or has too much water, and gives an alarm in time. The inlet pipe of the riser (1) is connected to the first delivery tube (10) via a rotating sealing ring, and the outlet pipe of the riser (1) is connected to the second delivery tube (20) via a rotating sealing ring.

2. The device for uniform water distribution and automatic flow interruption detection of a riser according to claim 1, characterized in that: The water inlet pipe electric switch valve (3) is closer to the riser (1) than the manual throttle valve (6).

3. The device for uniform water distribution and automatic flow interruption detection of a riser according to claim 1, characterized in that: The water outlet pipe electric switch valve (4) is closer to the riser (1) than the outlet pipe manual stop valve (7).

4. The device for uniform water distribution and automatic flow interruption detection of a riser according to claim 1, characterized in that: The first delivery pipe (10) is fixed to one end of the heat exchange pipe (18) away from the second delivery pipe (20), and the center line of the first delivery pipe (10) coincides with the center line of the second delivery pipe (20).

5. The device for uniform water distribution and automatic flow interruption detection of a riser according to claim 1, characterized in that: The first mounting seat (12) and the second mounting seat (19) are both fixedly connected to the riser (1), and the second mounting seat (19) is internally rotatably connected to the end of the screw rod (15).

6. The device for uniform water distribution and automatic flow interruption detection of a riser according to claim 1, characterized in that: The rectangular block (9) is located inside the defined groove (17).

7. The device for uniform water distribution and automatic flow interruption detection of a riser according to claim 1, characterized in that: The support rods arranged at equal angles on the outer end of the second conveying pipe (20) are embedded in the annular groove formed on the inner end of the second mounting seat (19).

8. A method for uniform water distribution and automatic flow interruption detection of a rising pipe as claimed in claim 1, characterized in that: The method comprises the following steps: Step 1: The flow meter detects that the flow rate in the water inlet pipe is less than 0.5 t / h, and an automatic alarm signal is transmitted to the central control room to generate an audible and visual alarm. At the same time, the control system transmits a "close" signal to the water inlet pipe electric switch valve (3), a "close" signal to the water outlet pipe electric switch valve (4), and an "open" signal to the discharge pipe electric switch valve (5); Step 2: After receiving the alarm, the personnel in the central control room remind the on-site operator on the furnace top to check the problem and increase the opening of the manual throttle valve (6) on the water inlet pipe; Step 3: When the flow meter detects that the flow rate in the water inlet pipe is greater than 1.5 t / h, an automatic alarm signal is transmitted to the central control room, and at the same time, the control system transmits a "close" signal to the water inlet pipe electric switch valve (3), a "close" signal to the water outlet pipe electric switch valve (4), and an "open" signal to the discharge pipe electric switch valve (5); Step 4: After receiving the alarm, the personnel in the central control room remind the on-site operator on the furnace top to investigate the problem and reduce the opening of the manual throttle valve (6) of the water inlet pipe to reduce the water inlet volume of the riser.

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