Water seal device of straw combustion gasifier

Abstract

The utility model discloses a water seal device of a straw combustion gasification furnace, which belongs to the technical field of gasification furnaces and comprises a gasification furnace body, and a plurality of pressure relief bent pipes are fixedly sleeved on the lateral portion of the gasification furnace body. According to the utility model, the water level sensor is used for monitoring the water level of the inner cavity of the pressure relief water-sealed tank in real time, when the water level sensor detects that the water level of the inner cavity of the pressure relief water-sealed tank is reduced, the power supply control line and the connecting plug are used for transmitting a detection signal to the controller, and the controller is used for controlling the water pump; when the water level sensor detects water again, it is indicated that the water level of the inner cavity of the pressure relief water-sealed tank reaches the needed height, at the moment, the controller is used for controlling the water pump to be closed, and the pressure relief water-sealed tank is filled with the water in the inner cavity of the pressure relief water-sealed tank. The function of automatically adding water seal water in the pressure relief water seal tank is achieved, and practicability is good.

Description

Technical Field

[0001] This utility model relates to the field of gasification furnace technology, and more specifically, to a water seal device for a straw combustion gasification furnace. Background Technology

[0002] A gasifier is a device that converts solid fuel into syngas under oxygen-deficient or limited oxygen conditions. With increasing environmental protection requirements and technological advancements, gasifiers are developing towards high efficiency and low pollution. Straw is one type of fuel used in gasifiers to produce syngas.

[0003] A search revealed that utility model patent CN221217728U discloses an overpressure protection device for a biomass gasifier, including a gasifier and a furnace cover. The upper part of the gasifier's side wall is equipped with a water seal pressure relief device, which includes a pressure relief water seal tank, a water supply valve, and an overflow valve. A retaining ring is fixedly installed on the gasifier's side wall, and a wedge is provided on the outer side of the pressure relief water seal tank. The retaining ring has a groove that matches the wedge, and an adjusting screw that abuts against the wedge is provided on one side of the retaining ring. The gasifier includes an inner shell and an outer shell, with a water jacket structure between the inner shell and the outer shell. A pressure relief bend is provided on one side of the upper part of the gasifier. This patent employs a gradual pressure relief method, facilitating furnace pressure control. Furthermore, because the water seal device is arranged around the gasifier body, the water seal is connected to the medium-temperature environment inside the furnace through the pressure relief bend, preventing the water seal from freezing even in winter, thus improving the reliability of water seal pressure relief when the furnace experiences overpressure.

[0004] However, the above patent still has the following shortcomings: when the water volume in the pressure relief water seal tank is less than the required amount, it is not convenient to add water manually, and the frequent manual addition is not very convenient; in addition, when adjusting the height of the pressure relief water seal tank, it is necessary to turn the adjusting screw with one hand and lift the pressure relief water seal tank with the other hand, which is not convenient to operate. Therefore, we have proposed a water seal device for a straw combustion gasification furnace. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a water seal device for a straw combustion gasification furnace.

[0006] To solve the above problems, the present invention adopts the following technical solution: a water seal device for a straw combustion gasification furnace, comprising a gasification furnace body, a plurality of pressure relief bends fixedly sleeved on the side of the gasification furnace body, a plurality of height adjustment mechanisms provided on the side of the gasification furnace body, a pressure relief water seal tank respectively provided on the plurality of height adjustment mechanisms, a gas venting hole opened on the top surface of the pressure relief water seal tank respectively, the end of the pressure relief bend extending through the gas venting hole to the inner cavity of the pressure relief water seal tank, a water level sensor fixedly installed on the inner wall of the pressure relief water seal tank, a water pump fixedly installed on the outer side of the pressure relief water seal tank, the output end of the water pump extending to the inner cavity of the pressure relief water seal tank, a suction pipe fixedly connected to the input end of the water pump, and an overflow valve fixedly installed on the outer side of the pressure relief water seal tank, the end of the overflow valve extending to the inner cavity of the pressure relief water seal tank.

[0007] As a preferred embodiment of this utility model, the height adjustment mechanism includes an adjustment seat fixedly connected to the side of the gasifier body. A lifting groove is provided on the outer side of the adjustment seat. A brake motor is fixedly installed on the top surface of the adjustment seat. The output shaft of the brake motor extends into the inner cavity of the lifting groove and is fixedly connected to a screw. The outer side of the screw is threaded with a lifting seat. The side of the lifting seat extends to the outside of the adjustment seat and is connected to the side of the pressure relief water seal tank.

[0008] In a preferred embodiment of this utility model, a control box is fixedly connected to the side of each adjustment seat, and a door is hinged to the outside of each of the multiple control boxes. A controller is installed inside the control box, and a storage battery is installed inside the control box. A wiring hole is provided on the side of the control box. Power supply control lines are provided on the water pump and the water level sensor. Two connectors are fixedly connected to the end of each power supply control line. The ends of the two connectors extend through the wiring hole into the inner cavity of the control box and are respectively connected to the controller and the storage battery.

[0009] As a preferred embodiment of this utility model, a heat insulation cover is provided on the top surface of the adjustment seat and on the outside of the brake motor.

[0010] In a preferred embodiment of this utility model, the inner wall of the lifting groove and the two sides of the lifting seat are fitted together.

[0011] As a preferred embodiment of this utility model, a transparent plate is provided on the outer side of the pressure relief water seal tank.

[0012] Compared with the prior art, the advantages of this utility model are as follows: In this utility model, a water level sensor is used to monitor the water level inside the pressure relief water seal tank in real time. When the water level sensor detects that the water level inside the pressure relief water seal tank has decreased, the detection signal is transmitted to the controller via the power supply control line and the connector plug. The controller controls the water pump so that the suction pipe draws water from the outside into the inner cavity of the pressure relief water seal tank to add water to the inner cavity. When the water level sensor detects water again, it indicates that the water level inside the pressure relief water seal tank has reached the required height. At this time, the controller controls the water pump to shut off, thus realizing the function of automatically adding water to the pressure relief water seal tank.

[0013] In this invention, the adjustable seat, lifting groove, screw, brake motor, and lifting seat are used in combination. The brake motor drives the screw to rotate, and the screw and lifting seat move the pressure relief water seal tank up and down through the threaded connection between the screw and the lifting seat. This adjusts the depth of the bottom end of the pressure relief bend into the water inside the pressure relief water seal tank, thereby adjusting the water seal pressure at the bottom end of the pressure relief bend. This invention achieves the function of conveniently adjusting the height of the pressure relief water seal tank and has good practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the adjusting seat of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the pressure relief water seal tank of this utility model;

[0017] Figure 4 This is a cross-sectional schematic diagram of the pressure relief water seal tank of this utility model;

[0018] Figure 5 This is a cross-sectional view of the control box of this utility model.

[0019] The following are the labels in the diagram: 1. Gasifier body; 2. Height adjustment mechanism; 3. Pressure relief water seal tank; 4. Gas vent; 5. Pressure relief bend; 6. Water pump; 7. Suction pipe; 8. Water level sensor; 9. Overflow valve; 10. Adjustment seat; 11. Lifting groove; 12. Screw; 13. Brake motor; 14. Lifting seat; 15. Insulation cover; 16. Transparent panel; 17. Control box; 18. Controller; 19. Battery; 20. Box door; 21. Wiring hole; 22. Power supply control line; 23. Connecting plug. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1:

[0023] Please see Figure 1-5 A water seal device for a straw combustion gasification furnace includes a gasification furnace body 1. Multiple pressure relief bends 5 are fixedly sleeved on the side of the gasification furnace body 1. Multiple height adjustment mechanisms 2 are provided on the side of the gasification furnace body 1. Each height adjustment mechanism 2 is equipped with a pressure relief water seal tank 3. Each pressure relief water seal tank 3 has a venting hole 4 on its top surface. The end of the pressure relief bend 5 extends through the venting hole 4 into the inner cavity of the pressure relief water seal tank 3. A water level sensor 8 is fixedly installed on the inner wall of the pressure relief water seal tank 3. A water pump 6 is fixedly installed on the outer side of the pressure relief water seal tank 3. The output end of the water pump 6 extends into the inner cavity of the pressure relief water seal tank 3. A suction pipe 7 is fixedly connected to the input end of the water pump 6. An overflow valve 9 is fixedly installed on the outer side of the pressure relief water seal tank 3. The end of the overflow valve 9 extends into the inner cavity of the pressure relief water seal tank 3.

[0024] In this embodiment, the suction pipe 7 is used to pump softened wastewater or drain water from the boiler room, and the height of the water level sensor 8 is the same as the height of the overflow valve 9.

[0025] For details, please refer to Figures 1 to 3The height adjustment mechanism 2 includes an adjustment seat 10 fixedly connected to the side of the gasifier body 1. A lifting groove 11 is provided on the outer side of the adjustment seat 10. A brake motor 13 is fixedly installed on the top surface of the adjustment seat 10. The output shaft of the brake motor 13 extends into the inner cavity of the lifting groove 11 and is fixedly connected to a screw 12. A lifting seat 14 is threaded onto the outer side of the screw 12. The side of the lifting seat 14 extends to the outside of the adjustment seat 10 and is connected to the side of the pressure relief water seal tank 3.

[0026] In this embodiment, the brake motor 13 drives the screw 12 to rotate, and the screw 12 and the lifting seat 14 are connected by a threaded connection to move the pressure relief water seal tank 3 up and down, so as to adjust the depth of the bottom end of the pressure relief bend 5 into the water in the inner cavity of the pressure relief water seal tank 3, thereby adjusting the pressure of the water in the pressure relief water seal tank 3 on the end of the pressure relief bend 5 to form a water seal.

[0027] For details, please refer to Figure 1 , Figure 3 and Figure 4 Control boxes 17 are fixedly connected to the sides of the regulating seat 10. Box doors 20 are hinged to the outside of the multiple control boxes 17. A controller 18 is installed inside the control box 17. A storage battery 19 is installed inside the control box 17. A wire hole 21 is provided on the side of the control box 17. Power supply control lines 22 are provided on the water pump 6 and the water level sensor 8. Two connector plugs 23 are fixedly connected to the end of the power supply control line 22. The ends of the two connector plugs 23 extend through the wire hole 21 into the inner cavity of the control box 17 and are respectively connected to the controller 18 and the storage battery 19.

[0028] In this embodiment, the controller 18 and the battery 19 are respectively provided with sockets that are compatible with the connector 23, so that the connector 23 can be inserted into the controller 18 and the battery 19.

[0029] For details, please refer to Figure 2 A heat insulation cover 15 is fitted on the top surface of the adjusting seat 10 and outside the brake motor 13.

[0030] In this embodiment, the heat insulation cover 15 blocks the direction of the brake motor 13 from approaching the gasifier body 1, so as to avoid the high temperature outside the gasifier body 1 from affecting the brake motor 13.

[0031] For details, please refer to Figure 2 and Figure 3 The inner wall of the lifting groove 11 fits against the two sides of the lifting seat 14.

[0032] In this embodiment, the inner wall of the lifting groove 11 is used to limit the lifting seat 14, so that the lifting seat 14 can only move along the axial direction of the screw 12.

[0033] For details, please refer to Figure 3The pressure relief water seal tank 3 is fitted with a transparent plate 16 on its outer side.

[0034] In this embodiment, the water volume inside the pressure relief water seal tank 3 is controlled through the transparent plate 16.

[0035] Working Principle: During use, the water inside the pressure relief water seal tank 3 forms a water seal on the end of the pressure relief bend 5. This allows high-pressure gas inside the gasifier body 1 to be discharged through the pressure relief bend 5 when the pressure is too high. When it is necessary to adjust the water seal pressure at the bottom of the pressure relief bend 5, the brake motor 13 drives the screw 12 to rotate. Through the threaded engagement between the screw 12 and the lifting seat 14, the lifting seat 14 and the pressure relief water seal tank 3 move up and down, thereby changing the depth of the bottom of the pressure relief bend 5 into the water inside the pressure relief water seal tank 3, and thus changing the water pressure at the bottom of the pressure relief bend 5, so as to adjust the pressure on the pressure relief bend. The water seal pressure at the bottom of pipe 5 is controlled by a water level sensor 8. The water level sensor 8 detects the water level in the inner cavity of the pressure relief water seal tank 3. When the water level sensor 8 detects a decrease in the water level in the inner cavity of the pressure relief water seal tank 3, the detection signal is transmitted to the controller 18 via the power control line 22 and the connector 23. The controller 18 controls the water pump 6 so that the suction pipe 7 draws water from the outside into the inner cavity of the pressure relief water seal tank 3 to add water to the inner cavity of the pressure relief water seal tank 3. When the water level sensor 8 detects water again, it indicates that the water level in the inner cavity of the pressure relief water seal tank 3 has reached the required height. At this time, the controller 18 controls the water pump 6 to shut off.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A water seal device of a straw combustion gasifier, comprising a gasifier body (1), characterized in that: The side of the gasification furnace body (1) is fixedly sleeved with a plurality of pressure relief bends (5), the side of the gasification furnace body (1) is provided with a plurality of height adjusting mechanisms (2), a plurality of pressure relief water seal tanks (3) are respectively arranged on the height adjusting mechanisms (2), the top surface of the pressure relief water seal tank (3) is respectively provided with a gas distribution hole (4), the end of the pressure relief bend (5) extends to the inner cavity of the pressure relief water seal tank (3) through the gas distribution hole (4), the inner wall of the pressure relief water seal tank (3) is fixedly installed with a water level sensor (8), the outer side of the pressure relief water seal tank (3) is fixedly installed with a water pump (6), the output end of the water pump (6) extends to the inner cavity of the pressure relief water seal tank (3), the input end of the water pump (6) is fixedly connected with a water suction pipe (7), the outer side of the pressure relief water seal tank (3) is fixedly installed with an overflow valve (9), and the end of the overflow valve (9) extends to the inner cavity of the pressure relief water seal tank (3).

2. The water seal device of the straw gasification furnace according to claim 1, characterized in that: The height adjusting mechanism (2) comprises an adjusting seat (10) fixedly connected to the side of the gasification furnace body (1), a lifting groove (11) is formed in the outer side of the adjusting seat (10), a band brake motor (13) is fixedly installed on the top surface of the adjusting seat (10), the output shaft of the band brake motor (13) extends to the inner cavity of the lifting groove (11) and is fixedly connected with a screw rod (12), a lifting seat (14) is threadedly sleeved on the outer side of the screw rod (12), and the side of the lifting seat (14) extends to the outside of the adjusting seat (10) and is connected with the side of the pressure relief water seal tank (3).

3. The water seal device of the straw gasification furnace according to claim 2, characterized in that: The side of the adjusting seat (10) is fixedly connected with a control box (17), the outer side of the control box (17) is hingedly connected with a box door (20), the inner cavity of the control box (17) is provided with a controller (18), the inner cavity of the control box (17) is provided with a storage battery (19), the side of the control box (17) is provided with a threading hole (21), the water pump (6) and the water level sensor (8) are provided with a power supply control line (22), the end of the power supply control line (22) is fixedly connected with two connecting plugs (23), the ends of the two connecting plugs (23) extend to the inner cavity of the control box (17) through the threading hole (21) and are respectively connected with the controller (18) and the storage battery (19).

4. The water seal device of the straw gasification furnace according to claim 2, characterized in that: The top surface of the adjusting seat (10) and outside the band brake motor (13) is sleeved with a temperature insulation cover (15).

5. The water seal device of a straw gasification furnace according to claim 2, characterized in that: The inner wall of the lifting groove (11) and the two sides of the lifting seat (14) are attached.

6. The water seal device of a straw gasification furnace according to claim 1, characterized in that: The outer side of the pressure relief water seal tank (3) is sleeved with a perspective plate (16).

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