A concentrated brine flue gas cooling device of a coking desulfurization and denitrification equipment

Abstract

This utility model relates to the field of flue gas desulfurization and denitrification technology, and discloses a concentrated brine flue gas cooling device for coking desulfurization and denitrification equipment. The device includes an absorption tower body and an air inlet on one side of the absorption tower body. An air outlet channel is installed at the upper end of the absorption tower body. A water storage tank is installed on the outer wall of the absorption tower body. A water pump body is fixedly connected to the upper end of the water storage tank. An output pipe is fixedly connected to the output end of the water pump body. Multiple sets of output interfaces are evenly distributed around the outer wall of the absorption tower body. One end of each output interface penetrates through the outer wall of the absorption tower body. Spray assembly A, spray assembly B, and spray assembly C are provided on the inner wall of the absorption tower body. After the concentrated brine enters the outer ring through the inlet, it is sprayed into the tower along multiple sets of water outlets on the lower wall of the ring. The concentrated brine absorbs heat from the flue gas, and some of the water vaporizes, carrying away a large amount of heat, thus reducing the flue gas temperature from approximately 180°C to approximately 110°C, achieving the cooling purpose, and the spraying is uniform.

Description

Technical Field

[0001] This utility model relates to the field of flue gas desulfurization and denitrification technology, and in particular to a concentrated brine flue gas cooling device for coking desulfurization and denitrification equipment. Background Technology

[0002] Under the stringent environmental protection requirements of the coking industry, efficient flue gas cooling technology is crucial for ensuring the stable operation of desulfurization and denitrification equipment. In existing technologies, the absorption tower, as the core equipment for flue gas cooling with concentrated brine, enhances the heat exchange process through structural design. It often incorporates multi-layer spray devices to atomize the concentrated brine into fine droplets, significantly increasing the gas-liquid contact area and allowing for sufficient contact between the high-temperature flue gas and the concentrated brine. Some absorption towers are also equipped with structured packing or turbulence generators to effectively extend the contact time between the flue gas and the concentrated brine, promoting more complete heat transfer and ensuring efficient absorption of heat from the flue gas by the concentrated brine, thereby stably reducing the flue gas temperature from approximately 180℃ to around 110℃. However, current concentrated brine flue gas cooling devices suffer from significant differences in the density and flow rate of concentrated brine in different areas of the tower due to factors such as the distribution of spray heads, spray angle, and fluctuations in concentrated brine pressure. This results in insufficient gas-liquid contact in some areas, low heat exchange efficiency, and failure to achieve the expected cooling effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that due to the influence of factors such as the distribution of spray heads, spray angle and pressure fluctuation of concentrated brine, the coverage density and flow rate of concentrated brine in different areas of the tower are quite different, resulting in insufficient gas-liquid contact in some areas, low heat exchange efficiency, and failure to achieve the expected cooling effect. To this end, we propose a concentrated brine flue gas cooling device for coking desulfurization and denitrification equipment.

[0004] To achieve the above objectives, this application adopts the following technical solution: a concentrated brine flue gas cooling device for coking desulfurization and denitrification equipment, comprising an absorption tower body and an air inlet opened on one side of the absorption tower body. An air outlet channel is installed at the upper end of the absorption tower body. A water storage tank is installed on the outer wall of the absorption tower body, and the inner cavity of the water storage tank is used to store concentrated brine. A water pump body is fixedly connected to the upper end of the water storage tank. An output pipe is fixedly connected to the output end of the water pump body. Multiple sets of output interfaces are installed on the outer wall of the output pipe, and these multiple sets of output interfaces are evenly arranged around the outer wall of the absorption tower body. The output interface is distributed such that one end extends through the outer wall of the absorption tower body. The inner wall of the absorption tower body is provided with spray assembly A, spray assembly B, and spray assembly C. Spray assembly A, spray assembly B, and spray assembly C correspond to each set of output interfaces. The spray assembly A, spray assembly B, and spray assembly C have the same composition structure. Spray assembly A includes an outer ring installed on the inner wall of the absorption tower body. One side of the outer ring has an opening for connecting the output interface. The lower wall of the outer ring is surrounded by multiple sets of water outlets, and the inner wall of each set of water outlets is equipped with an isolation component.

[0005] Furthermore, the isolation component includes an isolation block that is slidably connected to the inner wall of the water outlet, the isolation block having a cavity inside, and water guiding channels on both sides of the cavity.

[0006] Furthermore, the top surface of the isolation block has an arc-shaped structure, and the bottom of the cavity has an arc-shaped structure.

[0007] Furthermore, both sides of the isolation block are axially connected to a rotating plate body, and an elastic bent rod is fixedly connected to one end of the rotating plate body near the inner wall of the outer ring.

[0008] Furthermore, the elastic bending rod is a component made of rubber.

[0009] Furthermore, under the compressed state of the elastic bent rod, the isolation block causes the water guide channel to detach from the inner wall of the water outlet.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] In this invention, concentrated brine enters the outer ring through the inlet and is sprayed into the tower through multiple outlets along the lower wall of the ring. The concentrated brine absorbs heat from the flue gas, and some of the water vaporizes, carrying away a large amount of heat, thus reducing the flue gas temperature from about 180°C to about 110°C, achieving the purpose of cooling. Moreover, the spraying is uniform, solving the problem that due to factors such as the distribution of spray heads, spray angle, and fluctuations in concentrated brine pressure, the coverage density and flow rate of concentrated brine in different areas of the tower vary greatly, resulting in insufficient gas-liquid contact in some areas, low heat exchange efficiency, and failure to achieve the expected cooling effect. Attached Figure Description

[0012] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall planar structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of spray assembly A, spray assembly B and spray assembly C of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the spray assembly A of this utility model;

[0017] Figure 5 For the present utility model Figure 4 A magnified structural diagram at point A.

[0018] Legend: 1. Absorption tower body; 2. Air inlet; 3. Air outlet; 4. Water storage tank; 5. Water pump body; 6. Output pipe; 7. Output interface; 8. Spray assembly A; 9. Spray assembly B; 10. Spray assembly C; 81. Outer ring; 82. Through port; 83. Isolation assembly; 831. Isolation block; 832. Cavity; 833. Water guide channel; 834. Rotary plate body; 835. Flexible bending rod. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0020] Please see Figures 1-5 To address the issue that the distribution of spray heads, spray angle, and fluctuations in concentrated brine pressure cause significant differences in the coverage density and flow rate of concentrated brine in different areas of the tower, resulting in insufficient gas-liquid contact and low heat exchange efficiency in some areas, thus failing to achieve the expected cooling effect, the following preferred technical solutions are provided:

[0021] A concentrated brine flue gas cooling device for a coking desulfurization and denitrification equipment includes an absorption tower body 1 and an air inlet 2 located on one side of the absorption tower body 1. An air outlet channel 3 is installed at the upper end of the absorption tower body 1. A water storage tank 4 is installed on the outer wall of the absorption tower body 1. The inner cavity of the water storage tank 4 is used to store concentrated brine. A water pump body 5 is fixedly connected to the upper end of the water storage tank 4. An output pipe 6 is fixedly connected to the output end of the water pump body 5. Multiple sets of output interfaces 7 are installed on the outer wall of the output pipe 6, and these interfaces 7 are evenly distributed around the outer wall of the absorption tower body 1. One end of each output interface 7 penetrates the absorption tower body 1. The outer wall of the absorption tower body 1 and the inner wall of the absorption tower body 1 are provided with spray assembly A8, spray assembly B9 and spray assembly C10. Spray assembly A8, spray assembly B9 and spray assembly C10 correspond to each set of output interface 7. The spray assembly A8, spray assembly B9 and spray assembly C10 have the same composition structure. Spray assembly A8 includes an outer ring 81 installed on the inner wall of the absorption tower body 1. A through port 82 is opened on one side of the outer ring 81. The through port 82 is used to connect the output interface 7. Multiple sets of water outlets are distributed around the lower wall of the outer ring 81. An isolation component 83 is installed on the inner wall of each set of water outlets.

[0022] The isolation component 83 includes an isolation block 831 slidably connected to the inner wall of the outlet. The isolation block 831 has a cavity 832 inside, and water guiding channels 833 are provided on both sides of the cavity 832. The top surface of the isolation block 831 is arc-shaped, and the bottom surface of the cavity 832 is arc-shaped. A rotating plate body 834 is axially connected to both sides of the isolation block 831. An elastic bent rod 835 is fixedly connected to one end of the rotating plate body 834 near the inner wall of the outer ring 81. The elastic bent rod 835 is a component made of rubber. When the elastic bent rod 835 is pressed, the isolation block 831 drives the water guiding channels 833 to detach from the inner wall of the outlet.

[0023] Specifically, in the concentrated brine delivery stage, the storage tank 4 pre-stores concentrated brine. After the main pump 5 starts, it delivers the concentrated brine to each output port 7 via the output pipe 6. Multiple output ports are evenly distributed on the outer wall of the absorption tower body 1, ensuring that the concentrated brine can be evenly distributed along the circumference to the spray components A8, B9, and C10 at different heights inside the tower. At this time, the outer ring 81 serves as a carrier. After the concentrated brine enters the outer ring through the port 82, it is sprayed into the tower along multiple outlets on the lower wall of the ring. The concentrated brine absorbs heat from the flue gas, and some of the water vaporizes, carrying away a large amount of heat, thus reducing the flue gas temperature from about 180℃ to about 110℃, achieving the purpose of cooling. Moreover, the spraying is uniform, solving the problem that due to factors such as the distribution of spray heads, spray angle, and fluctuations in concentrated brine pressure, the coverage density and flow rate of concentrated brine in different areas of the tower vary greatly, resulting in insufficient gas-liquid contact in some areas, low heat exchange efficiency, and failure to achieve the expected cooling effect.

[0024] When the outer ring 81 is filled with concentrated brine and continuously supplied with water, its internal pressure gradually increases. During this process, the isolation component 83 ensures that multiple sets of water outlets work synchronously through the following mechanism: From the initial state, the elastic bent rod 835 is in a naturally extended state, until it is pressed and drives the isolation block 831 to move down, so that the water guide channel 833 is completely aligned with the water outlet, and all water outlets are in a conductive state. As concentrated brine is continuously injected into the outer ring 81, the concentrated brine is sprayed out synchronously through each water outlet, realizing that multiple sets of water outlets can output water at the same time, and the flow rate of each water outlet is kept relatively balanced, avoiding uneven spraying caused by pressure differences.

[0025] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A concentrated brine flue gas cooling device of a coking desulfurization and denitrification apparatus, characterized by, The absorption tower includes a main body and an air inlet on one side of the main body. An air outlet is installed at the upper end of the main body. A water storage tank is installed on the outer wall of the main body, with its inner cavity used for storing concentrated brine. A water pump is fixedly connected to the upper end of the water pump, and an output pipe is fixedly connected to the output end of the pump. Multiple output ports are installed on the outer wall of the output pipe, and these ports are evenly arranged around the outer wall of the main body. One end of each output port penetrates through the outer wall of the main body. The inner wall of the absorption tower body is provided with spray assembly A, spray assembly B and spray assembly C. Spray assembly A, spray assembly B and spray assembly C correspond to each of the output interfaces. The spray assembly A, spray assembly B and spray assembly C have the same composition structure. Spray assembly A includes an outer ring installed on the inner wall of the absorption tower body. One side of the outer ring has an opening for connecting the output interface. The lower wall of the outer ring is surrounded by multiple sets of water outlets. The inner wall of each set of water outlets is equipped with an isolation component.

2. The concentrated brine flue gas cooling device of the coking desulfurization and denitrification equipment according to claim 1, characterized in that: The isolation component includes an isolation block that is slidably connected to the inner wall of the water outlet. The isolation block has a cavity inside, and water guiding channels are provided on both sides of the cavity.

3. The concentrated brine flue gas cooling device for coking desulfurization and denitrification equipment according to claim 2, characterized in that: The top surface of the isolation block is arc-shaped, and the bottom surface of the cavity is arc-shaped.

4. The concentrated brine flue gas cooling device of the coking desulfurization and denitrification equipment according to claim 3, characterized in that: Both sides of the isolation block are axially connected to a rotating plate body, and an elastic bent rod is fixedly connected to one end of the rotating plate body near the inner wall of the outer ring.

5. The concentrated brine flue gas cooling device of the coking desulfurization and denitrification equipment according to claim 4, characterized in that: The elastic bending rod is a component made of rubber.

6. The concentrated brine flue gas cooling device of the coking desulfurization and denitrification equipment according to claim 5, characterized in that: When the elastic bent rod is pressed, the isolation block causes the water guide channel to detach from the inner wall of the outlet.

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