Flue gas desulfurization and denitrification device

Abstract

The utility model discloses a flue gas desulfurization and denitrification device which comprises a tower base, a tower body fixedly connected to the surface of the tower base, a spraying ring pipe installed in the tower body, a water inlet pipe inserted into the surface of the spraying ring pipe and a gas inlet connector connected to the surface of the tower body in a communicating mode, and a flow blocking assembly is installed at the top of the tower body. Flue gas is communicated and connected with the gas inlet connector through an external pipeline, the spraying ring pipe in the tower body sprays water liquid to conduct desulfurization and denitrification treatment on the flue gas, the exhaust hood is installed at the exhaust end of the cover plate at the opening position of the top of the tower body, and the filter screen plate is inserted into the exhaust hood, so that the flow speed of gas is reduced, and the gas flow rate is increased. The contact time of flue gas and water in the tower body is effectively prolonged, the desulfurization and denitrification performance is improved, and environmental protection is facilitated; an automatic pressure relief valve is installed on the surface of the cover plate, and when gas in the tower body is accumulated and exceeds the set air pressure, the automatic pressure relief valve conducts pressure relief treatment.

Description

Technical Field

[0001] This utility model belongs to the technical field of flue gas treatment devices, specifically relating to a flue gas desulfurization and denitrification device. Background Technology

[0002] Flue gas desulfurization and denitrification technology is a boiler flue gas purification technology applied in the chemical industry, which generates nitrogen oxides and sulfur oxides. Nitrogen oxides and sulfur oxides are among the main sources of air pollution; therefore, the application of this technology has many benefits for environmental air purification.

[0003] A search revealed a flue gas desulfurization and denitrification device with patent publication number CN220125859U, comprising a treatment tank, a first ring pipe, and a flue gas inlet pipe. The flue gas inlet pipe is fixedly connected to one side of the treatment tank, and a sulfur detector is fixedly connected to the top of the flue gas inlet pipe. A spray head is fixedly connected to the bottom of both the second ring pipe and the first ring pipe. A fine ring pipe is fixedly connected inside the treatment tank within the second ring pipe. A carbon fiber filter plate is movably installed inside the treatment tank at the top of the second ring pipe, and a ceramic filter plate is movably installed inside the treatment tank at the top of the carbon fiber filter plate. Through the coordinated use of the sulfur detector, nitrification detector, first ring pipe, second ring pipe, and controller, the device can automatically adjust the spray volume according to the detected sulfur and nitrification content in the flue gas, providing effective spray treatment when the sulfur and nitrification content in the flue gas is high.

[0004] In current technologies, when using desulfurization and denitrification towers to treat flue gas, the open design at the top of the tower results in a high flue gas flow rate, leading to poor purification effects and environmental degradation. Therefore, it is necessary to design a flue gas desulfurization and denitrification device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a flue gas desulfurization and denitrification device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a flue gas desulfurization and denitrification device, comprising a tower base, a tower body fixedly connected to the surface of the tower base, a spray ring pipe installed inside the tower body, a water inlet pipe inserted into the surface of the spray ring pipe, and an air inlet connector connected to the surface of the tower body, wherein a flow obstruction component is installed at the top of the tower body.

[0007] The flow obstruction assembly includes a cover plate installed at the opening position at the top of the tower body, an exhaust hood connected to the exhaust end of the cover plate, a filter screen plate inserted inside the exhaust hood, and an automatic pressure relief valve connected to the surface of the cover plate.

[0008] Preferably, the tower base and the tower body are electrically connected, and a drain outlet is provided on the surface of the tower base.

[0009] Preferably, a bracket is welded to the surface of the cover plate, and a protective plate is fixedly connected to the top of the bracket.

[0010] Preferably, a mounting base is fixedly connected to the outside of the cover plate, and a cooling pipe is fixedly connected to the end of the mounting base.

[0011] Preferably, a water pipe connector is conductively connected to the surface of the cooling pipe, and a spray hood is conductively connected to the inner circumference of the cooling pipe at equal intervals.

[0012] Preferably, the spray hood is located on the outside of the tower body, and the opening of the spray hood faces the surface of the tower body.

[0013] Preferably, the tower body is fitted with a flow-blocking shroud, and the surface of the flow-blocking shroud is conductively connected to a drain connector.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Flue gas is connected to the inlet joint through an external pipe. Water is sprayed from the spray ring pipe inside the tower body to desulfurize and denitrify the flue gas. An exhaust hood is installed at the exhaust end of the cover plate at the top opening of the tower body. A filter screen is inserted inside the exhaust hood to reduce the gas flow rate, thereby effectively extending the contact time between the flue gas and the water inside the tower body, improving the desulfurization and denitrification performance, which is beneficial to environmental protection. An automatic pressure relief valve is installed on the surface of the cover plate. When the gas inside the tower body accumulates and exceeds the set pressure, the automatic pressure relief valve will release the pressure.

[0016] 2. A cooling pipe is fixedly connected to the end of the mounting base of the cover plate. A water pipe connector is conductively connected to the surface of the cooling pipe. Spray hoods are equidistantly connected to the inner circumference of the cooling pipe. During flue gas treatment, water is supplied to the cooling pipe through an external water pump. The water is sprayed onto the surface of the tower through the spray hood to assist in cooling and reduce heat accumulation. Wastewater generated by spraying enters the flow baffle and can be discharged directionally through the drain connector. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the tower base and tower body structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cover plate and automatic pressure relief valve of this utility model;

[0020] Figure 4 This is a schematic diagram of the cooling pipe structure of this utility model.

[0021] In the diagram: 1. Tower base; 101. Drain outlet; 2. Tower body; 3. Cover plate; 301. Exhaust hood; 302. Filter screen; 4. Support; 5. Protective plate; 6. Automatic pressure relief valve; 7. Cooling pipe; 8. Flow baffle; 801. Drain connector; 9. Air inlet connector; 10. Water inlet pipe; 11. Spray ring pipe; 12. Water pipe connector; 13. Spray hood; 14. Mounting base. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figures 1 to 4 This utility model provides a technical solution for a flue gas desulfurization and denitrification device: including a tower base 1, a tower body 2 fixedly connected to the surface of the tower base 1, a spray ring pipe 11 installed inside the tower body 2, a water inlet pipe 10 inserted into the surface of the spray ring pipe 11, and an air inlet connector 9 connected to the surface of the tower body 2. A flow obstruction component is installed at the top of the tower body 2.

[0024] The flow obstruction assembly includes a cover plate 3 installed at the top opening of the tower body 2, an exhaust hood 301 connected to the exhaust end of the cover plate 3, a filter screen 302 inserted inside the exhaust hood 301, and an automatic pressure relief valve 6 connected to the surface of the cover plate 3.

[0025] The tower base 1 and the tower body 2 are electrically connected. A drain outlet 101 is provided on the surface of the tower base 1. A bracket 4 is welded to the surface of the cover plate 3. A protective plate 5 is fixedly connected to the top of the bracket 4.

[0026] As can be seen from the above description, this utility model has the following beneficial effects: flue gas is connected to the air inlet connector 9 through an external pipe, and water is sprayed by the spray ring pipe 11 inside the tower body 2 to desulfurize and denitrify the flue gas. An exhaust hood 301 is installed at the exhaust end of the cover plate 3 at the top opening of the tower body 2. A filter screen plate 302 is inserted inside the exhaust hood 301 to reduce the gas flow rate, thereby effectively extending the contact time between the flue gas and the water inside the tower body 2, improving the desulfurization and denitrification performance, and being beneficial to environmental protection. An automatic pressure relief valve 6 is installed on the surface of the cover plate 3. When the gas inside the tower body 2 accumulates and exceeds the set pressure, the automatic pressure relief valve 6 performs pressure relief.

[0027] Example 2: Please refer to Figures 1 to 4As shown, based on Embodiment 1, this utility model provides a technical solution for a flue gas desulfurization and denitrification device: a mounting base 14 is fixedly connected to the outside of the cover plate 3, a cooling pipe 7 is fixedly connected to the end of the mounting base 14, a water pipe connector 12 is conductively connected to the surface of the cooling pipe 7, a spray hood 13 is equidistantly connected to the inner surface of the cooling pipe 7, the spray hood 13 is located on the outside of the tower body 2, the opening of the spray hood 13 faces the surface of the tower body 2, a flow-blocking hood 8 is sleeved on the outside of the tower body 2, and a sewage discharge connector 801 is conductively connected to the surface of the flow-blocking hood 8.

[0028] Using the above technical solution, a cooling pipe 7 is fixedly connected to the end of the mounting base 14 of the cover plate 3. A water pipe connector 12 is conductively connected to the surface of the cooling pipe 7. A spray hood 13 is equidistantly connected to the inner surface of the cooling pipe 7. When treating flue gas, water is supplied to the cooling pipe 7 through an external water pump. The water is sprayed onto the surface of the tower body 2 through the spray hood 13 to assist in cooling and reduce heat accumulation. The wastewater generated by the spraying enters the flow-blocking hood 8 and can be discharged directionally through the drain connector 801.

[0029] The working principle and usage process of this utility model are as follows: Flue gas is connected to the inlet connector 9 through an external pipe. Water is sprayed through the spray ring pipe 11 inside the tower body 2 to desulfurize and denitrify the flue gas. An exhaust hood 301 is installed at the exhaust end of the cover plate 3 at the top opening of the tower body 2. A filter screen 302 is inserted inside the exhaust hood 301, thereby reducing the gas flow rate and effectively extending the contact time between the flue gas and the water inside the tower body 2, improving desulfurization and denitrification performance, and benefiting environmental protection. An automatic pressure relief valve 6 is installed on the surface of the cover plate 3 to control the gas flow inside the tower body 2. When the pressure exceeds the set pressure, the automatic pressure relief valve 6 releases the pressure. A cooling pipe 7 is fixedly connected to the end of the mounting base 14 of the cover plate 3. A water pipe connector 12 is connected to the surface of the cooling pipe 7. A spray hood 13 is connected to the inner surface of the cooling pipe 7 at equal intervals. When treating flue gas, water is supplied to the cooling pipe 7 by an external water pump. The water is sprayed onto the surface of the tower body 2 through the spray hood 13 to assist in cooling and reduce heat accumulation. The wastewater generated by spraying enters the flow barrier 8 and can be discharged directionally through the drain connector 801.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A flue gas desulfurization and denitrification device, comprising a tower base (1), a tower body (2) fixedly connected to the surface of the tower base (1), a spray ring pipe (11) installed inside the tower body (2), a water inlet pipe (10) inserted into the surface of the spray ring pipe (11), and an air inlet connector (9) connected to the surface of the tower body (2), characterized in that: A flow-blocking component is installed at the top of the tower body (2); The flow obstruction assembly includes a cover plate (3) installed at the top opening of the tower body (2), an exhaust hood (301) connected to the exhaust end of the cover plate (3), a filter screen plate (302) inserted inside the exhaust hood (301), and an automatic pressure relief valve (6) connected to the surface of the cover plate (3); a mounting base (14) is fixedly connected to the outside of the cover plate (3), a cooling pipe (7) is fixedly connected to the end of the mounting base (14), a water pipe connector (12) is connected to the surface of the cooling pipe (7), and a spray hood (13) is equidistantly connected to the inner surface of the cooling pipe (7). The spray hood (13) is located on the outside of the tower body (2), and the opening of the spray hood (13) faces the surface of the tower body (2).

2. The flue gas desulfurization and denitrification device according to claim 1, characterized in that: The tower base (1) and the tower body (2) are electrically connected, and a drain outlet (101) is provided on the surface of the tower base (1).

3. The flue gas desulfurization and denitrification device according to claim 1, characterized in that: A bracket (4) is welded to the surface of the cover plate (3), and a protective plate (5) is fixedly connected to the top of the bracket (4).

4. The flue gas desulfurization and denitrification device according to claim 1, characterized in that: The tower body (2) is fitted with a flow-blocking hood (8), and the surface of the flow-blocking hood (8) is connected to a drain connector (801).

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