Flue gas desulfurization device for thermal power generating unit

Abstract

The utility model discloses a flue gas desulfurization device for a thermal power generating unit, which relates to the technical field of cleaning and comprises a desulfurization cylinder, a sealing cover is mounted on the surface of the desulfurization cylinder in a threaded manner, a built-in ring cover is rotatably mounted on the inner side of the sealing cover, a guide ball is rotatably mounted on the inner side of the built-in ring cover, and a circulating pipe is slidably mounted on the inner side of the guide ball. According to the flue gas desulfurization device for the thermal power generating unit, the motor body is meshed with the built-in ring cover through a gear to rotate and adjust, so that the spraying mechanism rotates and sprays in the desulfurization cylinder, and the defect that desulfurization and mixing cannot be more uniform and sufficient when a traditional spraying mechanism sprays at a fixed point is overcome; and when a built-in ring cover rotates, a cleaning support plate can be driven to synchronously clean the inner side of the desulfurization cylinder, so that the defect that subsequent cleaning is inconvenient due to the fact that the inner wall of the desulfurization cylinder adsorbs flue gas for a long time is overcome.

Description

Technical Field

[0001] This utility model relates to the field of clean technology, and in particular to a flue gas desulfurization device for thermal power units. Background Technology

[0002] Currently, coal still accounts for the largest share of my country's energy consumption. Therefore, controlling the emission of sulfur compounds and soot from coal combustion is an urgent task for my country. Existing general boilers still have problems such as poor combustion performance and low thermal efficiency, and generate a large amount of soot mixed with a large amount of sulfur compounds, which requires the use of desulfurization devices.

[0003] While most existing flue gas desulfurization (FGD) devices for thermal power units can achieve more thorough desulfurization, some FGD devices have spraying mechanisms that are fixed inside the unit. This placement can lead to uneven spraying in some areas, resulting in poor desulfurization performance. Additionally, the flue gas may be adsorbed inside the FGD device, preventing sufficient and timely spraying. This also makes subsequent cleaning of impurities inside the FGD device difficult. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to solve the problems raised in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flue gas desulfurization device for thermal power units, comprising a desulfurization cylinder, a sealing cover threaded onto the surface of the desulfurization cylinder, an inner ring cover rotatably mounted on the inner side of the sealing cover, a guide ball rotatably mounted on the inner side of the inner ring cover, a circulation pipe slidably mounted on the inner side of the guide ball, a motor body fixedly mounted on the surface of the sealing cover, a gear fixedly mounted on the output end of the motor body, the surface of the gear meshing with the surface of the inner ring cover, and a cleaning support plate fixedly mounted on the surface of the inner ring cover.

[0006] Preferably, a spraying mechanism is fixedly installed at the port of the circulation pipe, and the surface of the spraying mechanism is fixedly installed on the surface of the built-in ring cover.

[0007] Preferably, a positioning screw is fixedly installed at the end of the circulation pipe away from the spraying mechanism, and the surface thread of the positioning screw is installed on the inner side of the desulfurization cylinder.

[0008] Preferably, the surface of the cleaning support plate abuts against the inner side of the desulfurization cylinder, and the surface of the cleaning support plate is an inclined surface.

[0009] Preferably, a support leg is welded to the surface of the desulfurization cylinder, a gas guide branch pipe is fixedly installed on the inner side of the desulfurization cylinder, and an exhaust branch pipe is fixedly installed at the end of the gas guide branch pipe.

[0010] Preferably, a gas collecting hood is welded and installed on the surface of the exhaust branch pipe, and the gas collecting hood is funnel-shaped.

[0011] Preferably, the surface of the exhaust branch pipe is provided with an exhaust groove, and the exhaust groove on the exhaust branch pipe is located inside the gas collection hood.

[0012] Preferably, a cleaning pipe is fixedly installed on the surface of the desulfurization cylinder, and a cap is threaded onto the surface of the cleaning pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this flue gas desulfurization device for thermal power units, the motor body is adjusted by meshing with the built-in ring cover through gears, thereby enabling the spraying mechanism to rotate and spray inside the desulfurization cylinder. This improves the shortcomings of traditional spraying mechanisms that cannot achieve more uniform and sufficient desulfurization mixing when spraying at fixed points, thus improving the efficiency of the device in desulfurization operation. Furthermore, the rotation of the built-in ring cover will drive the cleaning support plate to perform synchronous cleaning operation on the inner side of the desulfurization cylinder, thereby reducing the disadvantage of long-term adsorption of flue gas on the inner wall of the desulfurization cylinder, which would cause inconvenience in subsequent cleaning. Therefore, the device has improved the efficiency of efficient spraying and mixing and synchronous cleaning operation when performing flue gas desulfurization for thermal power units. In addition, the spraying at the bottom of the desulfurization cylinder and the built-in ring cover through the circulation pipe achieves the effect of water circulation spraying, thereby reducing the disadvantage of water waste during desulfurization at a certain stage, thus improving the practicality of the device.

[0015] (2) The flue gas desulfurization device of the thermal power unit uses the funnel shape of the gas collection hood to directionally discharge the flue gas of the thermal power unit, thereby reducing the disadvantage of water droplet adsorption on the exhaust groove of the exhaust branch pipe when the desulfurization cylinder is mixed with mist and water. This ensures the high efficiency of the exhaust of the thermal power unit flue gas at the exhaust branch pipe. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of a flue gas desulfurization device for a thermal power unit according to the present invention;

[0018] Figure 2 This is a schematic diagram of the planar structure of a flue gas desulfurization device for a thermal power unit according to the present invention;

[0019] Figure 3 This is a schematic diagram of the exhaust branch pipe of this utility model;

[0020] Figure 4 This is a schematic diagram of the cleaning support plate of this utility model.

[0021] Reference numerals in the attached diagram: 1. Desulfurization cylinder; 2. Support leg; 3. Air guide branch pipe; 4. Exhaust branch pipe; 5. Gas collection hood; 6. Exhaust trough; 7. Sealing cover; 8. Internal ring cover; 9. Guide ball; 10. Circulation pipe; 11. Spraying mechanism; 12. Positioning screw pipe; 13. Motor body; 14. Gear; 15. Cleaning support plate; 16. Cleaning pipe; 17. Cap. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a flue gas desulfurization device for thermal power units, including a desulfurization cylinder 1, a support leg 2 welded to the surface of the desulfurization cylinder 1, a gas guide branch pipe 3 fixedly installed inside the desulfurization cylinder 1, an exhaust branch pipe 4 fixedly installed at the port of the gas guide branch pipe 3, a gas collecting hood 5 welded to the surface of the exhaust branch pipe 4, the gas collecting hood 5 being funnel-shaped, and an exhaust groove 6 being opened on the surface of the exhaust branch pipe 4, the exhaust groove 6 being located inside the gas collecting hood 5.

[0027] Specifically, by setting a gas guide branch pipe 3 at the desulfurization cylinder 1, the flue gas generated by the thermal power unit is collected and discharged into the desulfurization cylinder 1. The exhaust groove 6 at the exhaust branch pipe 4 on the gas guide branch pipe 3 is used to exhaust the flue gas from the thermal power unit. The funnel shape of the gas collecting hood 5 is used to directionally discharge the exhaust flue gas from the thermal power unit. This reduces the disadvantage of water droplet adsorption at the exhaust groove 6 on the exhaust branch pipe 4 when the desulfurization cylinder 1 is carried out by mist-water mixing desulfurization, thus ensuring the high efficiency of exhausting the flue gas from the thermal power unit at the exhaust branch pipe 4.

[0028] Furthermore, a sealing cover 7 is threadedly installed on the surface of the desulfurization cylinder 1. An inner ring cover 8 is rotatably installed on the inner side of the sealing cover 7. A guide ball 9 is rotatably installed on the inner side of the inner ring cover 8. A circulation pipe 10 is slidably installed on the inner side of the guide ball 9. A spraying mechanism 11 is fixedly installed at the port of the circulation pipe 10. The surface of the spraying mechanism 11 is fixedly installed on the surface of the inner ring cover 8. A positioning screw tube 12 is fixedly installed at the end of the circulation pipe 10 away from the spraying mechanism 11. The surface of the positioning screw tube 12 is threadedly installed on the inner side of the desulfurization cylinder 1. A motor body 13 is fixedly installed on the surface of the sealing cover 7. A gear 14 is fixedly installed at the output end of the motor body 13. The surface of the gear 14 is meshed on the surface of the inner ring cover 8. A cleaning support plate 15 is fixedly installed on the surface of the inner ring cover 8. The surface of the cleaning support plate 15 abuts against the inner side of the desulfurization cylinder 1. The surface of the cleaning support plate 15 is inclined.

[0029] Specifically, when desulfurization of flue gas from a thermal power unit is required, the unit only needs to exhaust gas to the exhaust branch pipe 4 for gas dispersion. At this time, the motor body 13 and the spraying mechanism 11 work synchronously. Both the spraying mechanism 11 and the motor body 13 are existing structures and will not be described in detail here. They are controlled by a switch. The motor body 13 rotates and adjusts through gear 14 meshing with the built-in ring cover 8, thereby enabling the spraying mechanism 11 to rotate and spray inside the desulfurization cylinder 1. This improves upon the shortcomings of traditional spraying mechanisms 11, which cannot achieve more uniform and thorough desulfurization mixing when spraying at fixed points, thus enhancing the efficiency of the desulfurization process. The device improves the efficiency of desulfurization operations. The rotation of the built-in ring cover 8 drives the cleaning support plate 15 to simultaneously clean the inside of the desulfurization cylinder 1, thus reducing the inconvenience of subsequent cleaning caused by long-term adsorption of flue gas on the inner wall of the desulfurization cylinder 1. Therefore, the device achieves efficient spraying and mixing, as well as simultaneous cleaning operations, during flue gas desulfurization of thermal power units. Furthermore, spraying through the circulation pipe 10 at the bottom of the desulfurization cylinder 1 and the built-in ring cover 8 achieves the effect of water circulation spraying, thereby reducing waste during desulfurization at certain stages and improving the practicality of the device.

[0030] Furthermore, a cleaning pipe 16 is fixedly installed on the surface of the desulfurization cylinder 1, and a cap 17 is threaded onto the surface of the cleaning pipe 16. By opening the cap 17 at the cleaning pipe 16, water can be discharged from the desulfurization cylinder 1, thereby refreshing the water.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A flue gas desulfurization device for a thermal power unit, comprising a desulfurization cylinder (1), characterized in that: The desulfurization cylinder (1) is threaded with a sealing cover (7), and an inner ring cover (8) is rotatably installed on the inner side of the sealing cover (7). A guide ball (9) is rotatably installed on the inner side of the inner ring cover (8), and a circulation pipe (10) is slidably installed on the inner side of the guide ball (9). A motor body (13) is fixedly installed on the surface of the sealing cover (7), and a gear (14) is fixedly installed at the output end of the motor body (13). The surface of the gear (14) is meshed on the surface of the inner ring cover (8), and a cleaning support plate (15) is fixedly installed on the surface of the inner ring cover (8).

2. A flue gas desulphurization device for a thermal power unit according to claim 1, characterized in that: The port of the circulation pipe (10) is fixedly installed with a spraying mechanism (11), and the surface of the spraying mechanism (11) is fixedly installed on the surface of the built-in ring cover (8).

3. A flue gas desulphurization device for thermal power generating units according to claim 1, characterized in that: The end of the circulation pipe (10) away from the spraying mechanism (11) is fixedly installed with a positioning screw (12), and the surface thread of the positioning screw (12) is installed on the inner side of the desulfurization cylinder (1).

4. The flue gas desulfurization device for thermal power units according to claim 1, characterized in that: The surface of the cleaning support plate (15) abuts against the inner side of the desulfurization cylinder (1), and the surface of the cleaning support plate (15) is an inclined surface.

5. A flue gas desulphurization device for thermal power generating units as claimed in claim 1 wherein: The surface of the desulfurization cylinder (1) is welded with a support leg (2), and a gas guide pipe (3) is fixedly installed on the inner side of the desulfurization cylinder (1). An exhaust pipe (4) is fixedly installed at the port of the gas guide pipe (3).

6. A flue gas desulphurization device for a thermal power unit according to claim 5, characterized in that: The surface of the exhaust branch pipe (4) is welded with a gas collecting hood (5), which is funnel-shaped.

7. A flue gas desulfurization device for thermal power units according to claim 6, characterized in that: The surface of the exhaust branch pipe (4) is provided with an exhaust groove (6), and the exhaust groove (6) on the exhaust branch pipe (4) is located inside the gas collection hood (5).

8. A flue gas desulphurization device for thermal power generating units according to claim 1, characterized in that: A cleaning pipe (16) is fixedly installed on the surface of the desulfurization cylinder (1), and a cap (17) is threaded onto the surface of the cleaning pipe (16).

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