An ammonia water atomizing device

Abstract

The utility model provides a kind of ammonia water atomization device, it is related to ammonia gas atomization technical field, solve the problem of low-temperature compressed air atomization ammonia water efficiency, high energy consumption.The ammonia water atomization device includes: gas turbine compressor body, the outer surface of the gas turbine compressor body is equipped with exhaust end;With the exhaust end connection's gas pipeline;With the first end fixed connection of the gas pipeline's nozzle;With the nozzle being close to the one end connection of the gas pipeline's ammonia water feed pipe;Evaporation tank is sleeved in the nozzle outside.The utility model's scheme utilizes gas turbine compressor high-temperature exhaust high-efficiency atomization ammonia water, improves denitration efficiency and realizes energy saving.

Description

Technical Field

[0001] This utility model relates to the field of ammonia atomization technology, and in particular to an ammonia water atomization device. Background Technology

[0002] In thermal power plants and combined cycle power plants, flue gas denitrification is a crucial step in reducing nitrogen oxide emissions. Currently, ammonia atomization technology is widely used in selective catalytic reduction (SCR) or non-catalytic reduction (NCR) denitrification systems. Traditional atomization methods typically use compressed air supplied by a plant compressor to atomize ammonia water. This compressed air has a temperature of approximately 30°C and a relatively low pressure. However, the low-temperature compressed air results in poor ammonia atomization, larger droplet sizes, and insufficient mixing uniformity with the flue gas, thereby reducing denitrification reaction efficiency and affecting emission control. Furthermore, relying on dedicated compressors not only increases equipment costs but also consumes additional electrical energy, leading to higher operating energy consumption.

[0003] To address these issues, existing technologies attempt to optimize atomization by heating compressed air or improving nozzle structure. However, heating consumes additional energy, and nozzle improvements are often limited by the high-temperature resistance of materials, making it difficult to balance efficiency and reliability. Therefore, there is an urgent need for an ammonia atomization device that can utilize existing high-temperature air sources in power plants, requires no additional energy, and provides superior atomization, thereby improving the efficiency of denitrification systems and reducing operating costs. Utility Model Content

[0004] This invention provides an ammonia atomizing device that solves the problems of low efficiency and high energy consumption in ammonia atomization using low-temperature compressed air.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] An ammonia atomizing device, comprising:

[0007] A gas turbine compressor body, wherein the outer surface of the gas turbine compressor body is provided with an exhaust end;

[0008] The gas delivery pipe connected to the exhaust end;

[0009] A nozzle fixedly connected to the first end of the gas pipeline;

[0010] An ammonia inlet pipe connected to one end of the gas delivery pipeline near the nozzle;

[0011] An evaporator fitted outside the nozzle.

[0012] Optionally, the gas turbine compressor body is fixedly mounted on the base by a support device.

[0013] Optionally, the support device includes a fixing ring and a support rod, wherein the fixing ring is sleeved on the end of the gas turbine compressor body, the first end of the support rod is fixedly connected to the fixing ring, and the second end of the support rod is fixedly connected to the base.

[0014] Optionally, the exhaust end is provided with an exhaust pipe, and the second end of the gas transmission pipe is provided with a pipe joint, and the exhaust pipe and the pipe joint are connected by threads.

[0015] Optionally, a sealing ring is provided at the connection between the exhaust pipe and the pipe joint.

[0016] Optionally, the gas pipeline is equipped with a manual valve, a pressure reducing valve, and a pressure gauge.

[0017] Optionally, the nozzle has a porous structure.

[0018] Optionally, the ammonia inlet pipe is equipped with a flow valve, which is an adjustable valve.

[0019] Optionally, the evaporator is made of high-temperature and corrosion-resistant material and has an internal cavity structure.

[0020] Optionally, the top of the evaporator is provided with a connecting pipe, which is connected to the denitrification system.

[0021] The above-described solution of this utility model has at least the following beneficial effects:

[0022] The ammonia atomizing device of this utility model includes: a gas turbine compressor body, the outer surface of which is provided with an exhaust end; a gas delivery pipe connected to the exhaust end; a nozzle fixedly connected to a first end of the gas delivery pipe; an ammonia inlet pipe connected to an end of the gas delivery pipe near the nozzle; and an evaporator sleeved outside the nozzle. This solution utilizes the high-temperature exhaust gas of the gas turbine compressor to efficiently atomize ammonia, thereby improving denitrification efficiency and achieving energy saving. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the ammonia atomizing device provided by this utility model;

[0024] Figure 2 This is a utility model Figure 1 Enlarged view of a close-up detail at point A in the middle;

[0025] Figure 3 This is an installation diagram of the gas delivery pipeline, manual valve, and pressure reducing valve of the ammonia atomizing device provided by this utility model;

[0026] Figure 4 This is a utility model Figure 3 A schematic diagram of the cross-sectional structure;

[0027] The components include: 1. Gas turbine compressor body; 2. Fixing ring; 3. Support rod; 4. Base; 5. Exhaust pipe; 6. Sealing ring; 7. Gas transmission pipeline; 8. Pipe joint; 9. Nozzle; 10. Manual valve; 11. Pressure reducing valve; 12. Pressure gauge; 13. Evaporator; 14. Connecting pipe; 15. Ammonia water inlet pipe; and 16. Flow valve. Detailed Implementation

[0028] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0029] like Figure 1 As shown, an embodiment of this utility model provides an ammonia atomizing device, comprising:

[0030] Gas turbine compressor body 1, the outer surface of which is provided with an exhaust end;

[0031] The gas supply pipe 7 is connected to the exhaust end;

[0032] The nozzle 9 is connected to the end of the gas pipeline 7;

[0033] An ammonia inlet pipe 15 is connected to one end of the gas pipeline 7 near the nozzle 9. The ammonia inlet pipe 15 is equipped with a flow valve 16, which is an adjustable valve.

[0034] Evaporator 13 is fitted outside the nozzle 9.

[0035] In this embodiment, the ammonia atomizing device includes a gas turbine compressor body 1, a gas delivery pipeline 7, a nozzle 9, an ammonia inlet pipe 15, and an evaporator 13.

[0036] The gas turbine compressor body 1 has an exhaust end on its outer surface, which can output high-temperature, high-pressure gas at a temperature of 310℃ and a pressure of 0.7 MPa as an atomizing gas source. The exhaust end can be located at any stage of the gas turbine compressor, not limited to the compressor outlet. A gas delivery pipe 7 is connected to the exhaust end, and a nozzle 9 is fixedly connected to the end of the gas delivery pipe 7. This nozzle 9 extends into the evaporator 13 and is used to spray the mixed gas flow. An ammonia water inlet pipe 15 is connected to the gas delivery pipe 7 near the nozzle 9, and its flow valve 16 is an adjustable valve, achieving dynamic matching with the high-temperature gas by precisely controlling the ammonia water injection rate. The evaporator 13 is fitted outside the nozzle 9 to receive the ammonia water-high-temperature gas mixture sprayed from the nozzle, which is then fully atomized and vaporized into ammonia water vapor at a high temperature of 310℃.

[0037] When the ammonia atomizing device is in use, the exhaust gas from the gas turbine compressor is transported through the gas pipeline 7, and ammonia water is injected into the end of the gas pipeline 7 through the ammonia water feed pipe 15; the high-temperature gas and ammonia water are initially mixed and atomized at the nozzle 9, and then fully vaporized in the evaporator 13; finally, the ammonia water vapor enters the denitrification system.

[0038] This invention utilizes the high-temperature, high-pressure gas discharged from a gas turbine compressor to directly atomize ammonia water, significantly improving atomization efficiency and denitrification effect. Simultaneously, it eliminates the need for a dedicated compressor, reducing energy consumption and achieving energy-saving goals.

[0039] In an optional embodiment of this utility model, the gas turbine compressor body 1 is fixedly mounted on the base 4 by a support device; the support device includes a fixing ring 2 and a support rod 3, wherein the fixing ring 2 is sleeved on the end of the gas turbine compressor body 1, the first end of the support rod 3 is fixedly connected to the fixing ring 2, and the second end of the support rod 3 is fixedly connected to the base 4.

[0040] In this embodiment, a support device is installed at the bottom of the gas turbine compressor body 1. The support device enables the gas turbine compressor body 1 to be fixedly installed on the base 4. The support device includes a fixing ring 2 fixedly sleeved at the end of the gas turbine compressor body 1. Two support rods 3 are symmetrically installed on both sides of the fixing ring 2. The bottom end of the support rod 3 is fixed to the upper surface of the base 4. The fixing ring 2 is used to fix both ends of the gas turbine compressor body 1 and to support it in conjunction with the support rods 3 and the base 4, so as to improve the stability of the gas turbine compressor body 1 during operation.

[0041] In an optional embodiment of this utility model, an exhaust pipe 5 is provided on the exhaust end, and a pipe joint 8 is provided at the first end of the gas transmission pipe 7. The exhaust pipe 5 and the pipe joint 8 are connected by threads; a sealing ring 6 is provided at the connection between the exhaust pipe 5 and the pipe joint 8.

[0042] In this embodiment, an exhaust pipe 5 is fixedly connected to the exhaust end of the gas turbine compressor body 1, and a pipe joint 8 is rotatably connected to one end of the gas transmission pipeline 7 near the gas turbine compressor body 1. The gas transmission pipeline 7 is threadedly connected to the exhaust pipe 5 through the pipe joint 8, so as to realize the connection between the exhaust end and the gas transmission pipeline 7. At the same time, the connection is made by threading, which is not only convenient for installation, but also facilitates the disassembly and replacement of the gas transmission pipeline 7.

[0043] A sealing ring 6 is slidably fitted at the bottom of the exhaust pipe 5. The outer diameter of the sealing ring 6 is equal to the inner diameter of the pipe joint 8. After the pipe joint 8 is screwed onto the exhaust pipe 5, the top wall of the inner cavity of the pipe joint 8 is tightly fitted with the upper surface of the sealing ring 6. When the pipe joint 8 is screwed onto the exhaust pipe 5, the sealing ring 6 is located inside the pipe joint 8, and the upper surface of the sealing ring 6 is fitted with the inner wall of the pipe joint 8 to improve the airtightness of the connection between the pipe joint 8 and the exhaust pipe 5.

[0044] In an optional embodiment of this utility model, the gas pipeline 7 is provided with a manual valve 10, a pressure reducing valve 11, and a pressure gauge 12.

[0045] In this embodiment, a manual valve 10 is fixedly installed in the middle section of the gas pipeline 7 near the gas turbine compressor body 1. When it is necessary to discharge high-temperature and high-pressure gas through the gas pipeline 7, the manual valve 10 can be opened to allow the high-temperature and high-pressure gas discharged from the gas turbine compressor body 1 to be transported through the gas pipeline 7.

[0046] A pressure reducing valve 11 is installed in the middle section of the gas pipeline 7 near the evaporator 13 to regulate the gas pressure inside the gas pipeline 7. A pressure gauge 12 is installed at the connection between the pressure reducing valve 11 and the gas pipeline 7. The sensing end of the pressure gauge 12 extends through the side wall of the gas pipeline 7 and into the gas pipeline 7. The pressure reducing valve 11 is set to reduce the pressure of the gas transmitted in the gas pipeline 7, and the pressure gauge 12 is set to monitor the gas pressure in the gas pipeline 7 in real time.

[0047] In an optional embodiment of this utility model, the nozzle 9 has a porous structure; the evaporator 13 is made of high-temperature and corrosion-resistant material and has an internal cavity structure; the top of the evaporator 13 is provided with a connecting pipe 14, which is connected to the denitrification system.

[0048] In this embodiment, a connecting pipe 14 is installed at the top of the evaporator 13, and its bottom is connected to the internal cavity of the evaporator 13. An ammonia water inlet pipe 15 is connected above the end of the gas supply pipe 7 near the nozzle 9. The bottom end of the ammonia water inlet pipe 15 is connected to the inside of the gas supply pipe 7. A flow valve 16 for controlling the flow rate of ammonia water is also installed on the ammonia water inlet pipe 15. When the user opens the flow valve 16, ammonia water can be delivered to the nozzle 9 through the ammonia water inlet pipe 15 and blown into the evaporator 13 for atomization under the action of the high temperature and high pressure gas delivered by the gas supply pipe 7. At the same time, the nozzle 9 has a porous structure, which can improve the atomization effect. The atomized ammonia water vapor is discharged to the denitrification system of the power plant through the connecting pipe 14 installed at the top of the evaporator 13 for denitrification.

[0049] When using this ammonia atomizing device, firstly, connect one end of the gas supply pipe 7 to the exhaust pipe 5 installed on the exhaust end of the gas turbine compressor body 1 via the pipe joint 8. Then, start the gas turbine compressor body 1. After the user opens the manual valve 10, adjust the pressure reducing valve 11 according to the pressure displayed on the pressure gauge 12 to adjust the pressure in the gas supply pipe 7 to a suitable level. Then, open the flow valve 16 installed on the ammonia inlet pipe 15 to allow the ammonia to flow into the end of the gas supply pipe 7 near the nozzle 9 at a specific flow rate. Under the action of the high temperature and high pressure gas transported by the gas supply pipe 7, it is blown into the evaporator 13 for atomization. The atomized ammonia vapor is discharged to the denitrification system of the power plant through the connecting pipe 14 installed at the top of the evaporator 13 for denitrification. Since the compressed air is taken from the outlet of the gas turbine compressor 1, the gas pressure reaches 0.7 MPa and the gas temperature can reach 310 degrees. While effectively improving the ammonia atomization efficiency, it does not require the use of a special air compressor, which can reduce the power consumption of the special compressor and save energy.

[0050] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An ammonia atomizing device, characterized in that, include: Gas turbine compressor body (1), the outer surface of which is provided with an exhaust end; Gas delivery pipe (7) connected to the exhaust end; A nozzle (9) is fixedly connected to the first end of the gas pipeline (7); An ammonia inlet pipe (15) is connected to one end of the gas pipeline (7) near the nozzle (9); An evaporator (13) fitted outside the nozzle (9).

2. The ammonia atomizing device according to claim 1, characterized in that, The gas turbine compressor body (1) is fixedly installed on the base (4) by a support device.

3. The ammonia atomizing device according to claim 2, characterized in that, The support device includes a fixing ring (2) and a support rod (3), wherein the fixing ring (2) is sleeved on the end of the gas turbine compressor body (1), the first end of the support rod (3) is fixedly connected to the fixing ring (2), and the second end of the support rod (3) is fixedly connected to the base (4).

4. The ammonia atomizing device according to claim 1, characterized in that, The exhaust end is provided with an exhaust pipe (5), and the second end of the gas transmission pipe (7) is provided with a pipe joint (8). The exhaust pipe (5) and the pipe joint (8) are connected by threads.

5. The ammonia atomizing device according to claim 4, characterized in that, A sealing ring (6) is provided at the connection between the exhaust pipe (5) and the pipe joint (8).

6. The ammonia atomizing device according to claim 1, characterized in that, The gas pipeline (7) is equipped with a manual valve (10), a pressure reducing valve (11), and a pressure gauge (12).

7. The ammonia atomizing device according to claim 1, characterized in that, The nozzle (9) has a porous structure.

8. The ammonia atomizing device according to claim 1, characterized in that, The ammonia feed pipe (15) is equipped with a flow valve (16), which is an adjustable valve.

9. The ammonia atomizing device according to claim 1, characterized in that, The evaporator (13) is made of high-temperature and corrosion-resistant material and has an internal cavity structure.

10. The ammonia atomizing device according to claim 9, characterized in that, The top of the evaporator (13) is provided with a connecting pipe (14), which is connected to the denitrification system.

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