Deamination device

Abstract

The utility model discloses a deamination device which comprises a smoke inlet pipe, the right end of the smoke inlet pipe is communicated with a smoke heat exchanger, the position, close to the bottom, of the right end of the smoke heat exchanger is connected with a smoke outlet pipe, the right end of the smoke outlet pipe is connected with a first fan through a pipeline, and the right end of the first fan is connected with deamination equipment through a pipeline. A second fan is connected to the position, close to the top, of the right end of the deamination equipment through a pipeline, a gas inlet pipe is connected to the position, close to the bottom, of the right end of the second fan through a pipeline, the right end of the gas inlet pipe communicates with a heating furnace, the right end of the heating furnace communicates with a gas outlet pipe, and the right end of the gas outlet pipe communicates with a conveying pipe. According to the deamination device, the flue gas heat exchanger and the heating furnace are arranged, so that the deamination device can fully react with a deamination agent in the deamination device, the local environment can be protected, the air quality of surrounding areas can be obviously improved, and the adverse effect on human health is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of deammoniation devices, in particular to a deammoniation device. Background Art

[0002] With the increasingly strict environmental protection requirements, the emission limit of nitrogen oxides (NOx) is getting lower and lower. To meet the requirements of the emission limit, when desulfurizing flue gas, the consumption of ammonia water is also increasing. However, in this process, ammonia sometimes is discharged into the atmosphere together with the flue gas generated by the reaction, resulting in ammonia escape.

[0003] Currently, when existing deammoniation devices are in use, most of them directly react the deammoniating agent with ammonia in the flue gas for deammoniation. However, after the flue gas undergoes multiple desulfurization processes and some harmful gas removal processes, the temperature of the flue gas may be insufficient to provide the temperature required for the reaction between the deammoniating agent and ammonia. The reaction between the deammoniating agent and ammonia requires a certain temperature. In the case of insufficient temperature, it is very likely that the reaction between the deammoniating agent and ammonia is incomplete. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the temperature of the flue gas may be insufficient in the prior art, resulting in incomplete reaction between the deammoniating agent and ammonia, and to propose a deammoniation device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A deammoniation device includes a flue gas inlet pipe. The right end of the flue gas inlet pipe is communicated with a flue gas heat exchanger. The right end of the flue gas heat exchanger is connected with a flue gas outlet pipe near the bottom. The right end of the flue gas outlet pipe is connected to a first fan through a pipeline. The right end of the first fan is connected to a deammoniation device through a pipeline. The right end of the deammoniation device near the top is connected to a second fan through a pipeline. The right end of the second fan near the bottom is connected to an inlet pipe through a pipeline. The right end of the inlet pipe is communicated with a heating furnace. The right end of the heating furnace is communicated with an outlet pipe. The right end of the outlet pipe is communicated with a conveying pipe.

[0007] Preferably, a hot gas inlet pipe is communicated with the back of the flue gas heat exchanger near the top. One end of the conveying pipe far from the outlet pipe is communicated with the hot gas inlet pipe. A hot gas outlet pipe is communicated with the front of the flue gas heat exchanger near the bottom.

[0008] Preferably, a liquid storage ring is fixedly sleeved in the middle of the deammoniation device. The bottom of the liquid storage ring is fixedly connected with a support frame.

[0009] Preferably, the support frame is fixedly connected to the outer surface of the deammoniation device. A conveying pump is connected to the back of the liquid storage ring through a pipeline.

[0010] Preferably, a liquid storage tank is connected to the pipeline at the back of the transfer pump, and a sealing plug is movably sleeved on the top of the liquid storage tank.

[0011] Preferably, a liquid storage tank is connected to the pipeline at the back of the transfer pump, and a sealing plug is movably sleeved on the top of the liquid storage tank.

[0012] Compared with the prior art, the present utility model provides a denitrification device, which has the following beneficial effects:

[0013] 1. In this denitrification device, by providing a flue gas heat exchanger and a heating furnace, the flue gas is heated by the heating furnace, and then heat is supplied to the flue gas just entering the flue gas heat exchanger through the flue gas heat exchanger, so that the temperature of the flue gas reaches the standard, and the flue gas can fully react with the denitrifying agent in the denitrification equipment, which is beneficial to protecting the local environment, can significantly improve the air quality of the surrounding area, and reduce the adverse impact on human health.

[0014] 2. In this denitrification device, by providing a flue gas heat exchanger and a transfer pipe, the heat in the flue gas can be recycled through the flue gas heat exchanger. At the beginning, the flue gas needs to be heated by the heating furnace. After that, heat exchange between flue gases can be directly carried out through the flue gas heat exchanger, which can reduce the use of the heating furnace or not use the heating furnace at all, and can also be used to maintain the temperature of the flue gas, ensuring that the heat of the flue gas supports the full reaction of the denitrifying agent and ammonia in the flue gas, which is beneficial to improving the overall energy utilization efficiency, reducing energy consumption and costs, and can significantly save energy expenditure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a denitrification device proposed by the present utility model;

[0016] Figure 2 is a schematic side view of a denitrification device proposed by the present utility model.

[0017] In the figure: 1, smoke inlet pipe; 2, flue gas heat exchanger; 3, smoke outlet pipe; 4, first fan; 5, denitrification equipment; 6, second fan; 7, intake pipe; 8, heating furnace; 9, outlet pipe; 10, transfer pipe; 11, hot air inlet pipe; 12, hot air outlet pipe; 13, liquid storage ring; 14, liquid storage tank; 15, sealing plug; 16, support frame; 17, transfer pump. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0020] Referring to Figure 1-2 , a denitrification device includes a smoke inlet pipe 1. The right end of the smoke inlet pipe 1 is connected to a flue gas heat exchanger 2. The flue gas heat exchanger 2 is provided to supply heat to the flue gas, and at the same time, the heat of the flue gas can be recycled to reduce energy consumption and costs. The right end of the flue gas heat exchanger 2 is connected to a smoke outlet pipe 3 near the bottom. The right end of the smoke outlet pipe 3 is connected to a first fan 4 through a pipeline. The right end of the first fan 4 is connected to a denitrification device 5 through a pipeline. The right end of the denitrification device 5 is connected to a second fan 6 through a pipeline near the top. The first fan 4 and the second fan 6 are special fans for transporting flue gas. Some corrosion-resistant materials are used to reduce the erosion of the flue gas on the first fan 4 and the second fan 6. The right end of the second fan 6 is connected to an inlet pipe 7 through a pipeline near the bottom. The right end of the inlet pipe 7 is connected to a heating furnace 8. The heating furnace 8 is provided to heat up the flue gas or keep the flue gas at a constant temperature to ensure the flue gas temperature. After heat exchange through the flue gas heat exchanger 2, it can ensure the full reaction of the denitrifying agent and ammonia in the flue gas. The right end of the heating furnace 8 is connected to an outlet pipe 9. The right end of the outlet pipe 9 is connected to a delivery pipe 10.

[0021] Referring to Figure 1-2 As described above, a hot air inlet pipe 11 is connected to the back of the flue gas heat exchanger 2 near the top. One end of the delivery pipe 10 away from the outlet pipe 9 is connected to the hot air inlet pipe 11. A hot air outlet pipe 12 is connected to the front of the flue gas heat exchanger 2 near the bottom. A liquid storage ring 13 is fixedly sleeved in the middle of the denitrification device 5. The bottom of the liquid storage ring 13 is fixedly connected to a support frame 16. The support frame 16 is fixedly connected to the outer surface of the denitrification device 5. A delivery pump 17 is connected to the back of the liquid storage ring 13 through a pipeline. The back of the delivery pump 17 is connected to a liquid storage tank 14 through a pipeline. The back of the delivery pump 17 is connected to a liquid storage tank 14 through a pipeline. A sealing plug 15 is movably sleeved on the top of the liquid storage tank 14. A sealing plug 15 is movably sleeved on the top of the liquid storage tank 14.

[0022] In the present utility model, during use, flue gas enters the flue gas heat exchanger 2 from the flue gas inlet pipe 1. After the previous gas is heated in the heating furnace 8, it is transported to the flue gas heat exchanger 2 through the delivery pipe 10 to exchange heat with the flue gas. After the heat exchange is completed, the heated flue gas is transported to the deammoniation device 5 through the flue gas outlet pipe 3. Then, the deammoniation agent in the liquid storage tank 14 is transported to the liquid storage ring 13 through the delivery pump 17. The deammoniation agent is atomized through the nozzles inside the liquid storage ring 13 and reacts with the flue gas. After the reaction, the flue gas is transported to the heating furnace 8 by the second blower 6. When the temperature of the flue gas is insufficient, it can be heated up by the heating furnace 8. When the temperature of the flue gas is sufficient, the heating furnace 8 can play a role in maintaining a constant temperature, or it can be directly transported to the flue gas heat exchanger 2 through the heating furnace 8 and the delivery pipe 10 to exchange heat with the subsequent flue gas, and then enter the subsequent treatment process through the hot gas outlet pipe 12.

[0023] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A deammonification device, comprising a smoke inlet pipe (1), characterized in that: The right end of the smoke inlet pipe (1) is connected to a smoke heat exchanger (2), the right end of the smoke heat exchanger (2) is connected to a smoke outlet pipe (3) near the bottom, the right end of the smoke outlet pipe (3) is connected to a first fan (4), the right end of the first fan (4) is connected to a deammonification device (5), the right end of the deammonification device (5) is connected to a second fan (6) near the top, the right end of the second fan (6) is connected to an air inlet pipe (7) near the bottom, the right end of the air inlet pipe (7) is connected to a heating furnace (8), the right end of the heating furnace (8) is connected to an air outlet pipe (9), and the right end of the air outlet pipe (9) is connected to a conveying pipe (10).

2. A deammonification device according to claim 1, characterized in that: The back of the flue gas heat exchanger (2) near the top is connected to a hot air inlet pipe (11), one end of the delivery pipe (10) away from the air outlet pipe (9) is connected to the hot air inlet pipe (11), and the front of the flue gas heat exchanger (2) near the bottom is connected to a hot air outlet pipe (12).

3. A deammonification device according to claim 1, characterized in that: A liquid storage ring (13) is fixedly sleeved in the middle of the deammoniation equipment (5), and a support frame (16) is fixedly connected to the bottom of the liquid storage ring (13).

4. A deammoniation device according to claim 3, characterized in that: The support frame (16) is fixedly connected to the outer surface of the deammoniation equipment (5), and the back pipeline of the liquid storage ring (13) is connected to a delivery pump (17).

5. A deammoniation device according to claim 4, characterized in that: The back pipeline of the delivery pump (17) is connected to a liquid storage tank (14), and the top of the liquid storage tank (14) is movably sleeved with a sealing plug (15).

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