Air flow new electric plasma is used for domestic waste odor equipment

Abstract

The utility model discloses a kind of air volume new electric plasma for domestic waste odor equipment, comprising: deodorization chamber and electric plasma generator, the one end bottom side of deodorization chamber has air inlet, the top of the other end has air outlet, the air inlet is connected with filter, the air outlet is connected with deodorization fan, the electric plasma generator is located in the deodorization chamber, and located between the air inlet and the air outlet, the electric plasma generator includes multiple high-voltage pipes, multiple ground pipes and high-frequency high-voltage pulse direct-current power supply, multiple the high-voltage pipe and multiple the ground pipe are staggered and spaced distribution in turn.The utility model forms uniform electric field by staggered distribution high-voltage pipe and ground pipe, in combination with the high instantaneous voltage and current of high-frequency high-voltage pulse direct-current power supply, significantly improve plasma energy density, strengthen the oxidation decomposition capacity of NH3, H2S and other malodorous pollutants, improve equipment waste gas treatment efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment, and in particular to a novel air volume plasma device for odor removal from domestic waste. Background Technology

[0002] With the acceleration of urbanization, the amount of domestic waste generated has increased dramatically, and the malodorous gases (such as NH3 and H2S) produced during waste disposal pose a serious threat to the surrounding environment and residents' health.

[0003] Traditional deodorization technologies (such as chemical spraying and biological filters) suffer from low treatment efficiency, high operating costs, and secondary pollution, making it difficult to meet increasingly stringent environmental protection requirements. Plasma deodorization technology has gradually become a research hotspot due to its advantages such as high efficiency and no secondary pollution. However, existing plasma equipment mostly uses superimposed or composite pulse power supplies, which have drawbacks such as low electric field energy density, poor degradation effect, single function, and high operating costs. Utility Model Content

[0004] In view of the aforementioned problems with existing deodorization methods, this paper aims to provide a novel plasma-based deodorization device for municipal solid waste.

[0005] The specific technical solution is as follows:

[0006] A novel plasma-based deodorization device for municipal solid waste includes: a deodorization chamber and a plasma generator. The deodorization chamber has an air inlet on the bottom side of one end and an air outlet on the top of the other end. A filter is connected to the air inlet, and a deodorization fan is connected to the air outlet. The plasma generator is located within the deodorization chamber, between the air inlet and the air outlet. The plasma generator includes:

[0007] Multiple high-voltage pipes and multiple grounding pipes are arranged alternately and in a staggered manner.

[0008] A high-frequency, high-voltage pulsed DC power supply, wherein the high-frequency, high-voltage pulsed DC power supply is electrically connected to multiple high-voltage tubes and multiple grounding tubes.

[0009] As a further improvement and optimization of this solution, the filter is a dry filter.

[0010] As a further improvement and optimization of this solution, the air inlet of the dry filter is connected to an exhaust gas inlet pipe.

[0011] As a further improvement and optimization of this solution, the exhaust gas inlet pipe includes a vertical section and a curved section, and the vertical section is connected to the air inlet of the dry filter through the curved section.

[0012] As a further improvement and optimization of this solution, an exhaust pipe is also included. The exhaust pipe is vertically installed on the ground, and the air outlet of the deodorizing fan is connected to the side of the exhaust pipe through a connecting pipe.

[0013] As a further improvement and optimization of this solution, the connecting pipe includes a horizontal section and a bent section. One end of the horizontal section is connected to the side of the exhaust pipe, and the other end is connected to the air outlet of the deodorizing fan through the bent section.

[0014] As a further improvement and optimization of this solution, a funnel-shaped rain cap is installed at the top opening of the exhaust pipe.

[0015] As a further improvement and optimization of this solution, a frame is also included, which is arranged around the outside of the deodorization chamber. The frame has a maintenance platform, which is at the same height as the deodorization fan.

[0016] As a further improvement and optimization of this solution, the rack also has a manual ladder that connects to the maintenance platform.

[0017] As a further improvement and optimization of this solution, an electrical control cabinet is also installed on the rack, and the electrical control cabinet is connected to the high-frequency high-voltage pulse DC power supply.

[0018] The positive effects of the above technical solution compared with the existing technology are:

[0019] (1) In this utility model, a uniform electric field is formed by the staggered distribution of high-voltage pipes and grounding pipes. Combined with the high instantaneous voltage and current of the high-frequency high-voltage pulse DC power supply, the plasma energy density is significantly improved, the ability to oxidize and decompose odorous pollutants such as NH3 and H2S is enhanced, and the efficiency of equipment exhaust gas treatment is improved.

[0020] (2) In this utility model, after the exhaust gas enters the deodorization chamber from the bottom side, it needs to flow upward before it can be discharged from the top outlet. This design makes the flow path of the exhaust gas in the deodorization chamber "ascending", which greatly increases the residence time of the exhaust gas in the deodorization chamber compared with the horizontal straight airflow path. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a novel air volume plasma device for deodorizing municipal solid waste according to this utility model;

[0022] Figure 2 This is a top view showing the distribution of the high-voltage pipe and grounding pipe of a novel air volume plasma device for odor removal from municipal solid waste according to this utility model.

[0023] In the attached diagram: 1. Deodorization chamber; 2. Filter; 3. Deodorization fan; 4. Frame; 5. Exhaust gas inlet pipe; 6. Exhaust pipe; 7. Rain cap; 8. Connecting pipe; 9. High-pressure pipe; 10. Grounding pipe; 41. Maintenance platform; 42. Manual ladder; 51. Vertical section; 52. Curved section; 81. Horizontal section; 82. Bending section. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Figure 1 This is a structural schematic diagram of a novel plasma-based airflow device for deodorizing municipal solid waste, according to this utility model. Figure 2 This is a top view showing the distribution of the high-voltage pipe and grounding pipe of a novel plasma-based airflow deodorization device for municipal solid waste. Figure 1-2As shown, a preferred embodiment of a novel plasma deodorization device for municipal solid waste is illustrated, comprising: a deodorization chamber 1 and a plasma generator. The deodorization chamber 1 has an air inlet on the bottom side of one end and an air outlet on the top of the other end. A filter 2 is connected to the air inlet, and a deodorization fan 3 is connected to the air outlet. The plasma generator is located inside the deodorization chamber 1, between the air inlet and the air outlet. The plasma generator includes multiple high-voltage pipes 9, multiple grounding pipes 10, and a high-frequency high-voltage pulsed DC power supply (not shown in the figure). The multiple high-voltage pipes 9 and the multiple grounding pipes 10 are arranged alternately and sequentially. The high-frequency high-voltage pulsed DC power supply is electrically connected to the multiple high-voltage pipes 9 and the multiple grounding pipes 10.

[0028] In this application, after the exhaust gas enters the deodorization chamber 1 from the bottom side, it needs to flow upwards to be discharged from the top outlet. This design makes the flow path of the exhaust gas in the deodorization chamber 1 "ascending". Compared with the horizontal straight airflow path, it greatly increases the residence time of the exhaust gas in the deodorization chamber 1. The strong oxidizing free radicals (such as OH free radicals) generated by the plasma generator have more time to fully contact and oxidize the odorous pollutants (such as NH3, H2S, etc.) in the exhaust gas, thereby oxidizing the odorous pollutants more thoroughly into odorless or low-odor substances, which significantly improves the deodorization efficiency.

[0029] In this application, a uniform electric field is formed by the staggered distribution of high-voltage pipes 9 and grounding pipes 10. Combined with the high instantaneous voltage and current of the high-frequency high-voltage pulsed DC power supply, the plasma energy density is significantly improved, the ability to oxidize and decompose odorous pollutants such as NH3 and H2S is enhanced, and the efficiency of equipment exhaust gas treatment is improved.

[0030] Specifically, multiple high-voltage tubes 9 are connected through a positive busbar, and multiple grounding tubes 10 are connected through a negative return busbar. The positive terminal of the high-frequency high-voltage pulse DC power supply is connected to the positive busbar through a cable, and the negative terminal is connected to the negative busbar through another cable.

[0031] More specifically, multiple high-voltage pipes 9 and multiple grounding pipes 10 are arranged along the front-to-back direction (e.g., Figure 1 The front and back directions are evenly spaced and staggered.

[0032] Even better, water mist or acid mist droplets in the exhaust gas are polarized in the electric field, become charged and migrate to the surface of the grounding pipe 10, agglomerate into large droplets and flow down to the bottom of the deodorization chamber 1, and are discharged through the drain outlet provided on the deodorization chamber 1.

[0033] Furthermore, as a preferred embodiment, filter 2 is a dry filter 2. The dry filter 2 can efficiently intercept large particles, plastic bags, and other impurities in the exhaust gas, preventing them from entering the plasma generator and causing sparking or clogging pipes, thus extending equipment lifespan and reducing maintenance costs.

[0034] Furthermore, as a preferred embodiment, the air inlet of the dry filter 2 is connected to an exhaust gas inlet pipe 5. The exhaust gas inlet pipe 5 enables directional delivery of exhaust gas, reduces airflow turbulence, ensures that exhaust gas enters the dry filter 2 evenly, improves the filtration effect, and at the same time avoids exhaust gas leakage causing secondary pollution to the environment.

[0035] Furthermore, as a preferred embodiment, the exhaust gas inlet pipe 5 includes a vertical section 51 and a curved section 52, with the vertical section 51 connected to the air inlet of the dry filter 2 via the curved section 52. The curved section 52 can buffer airflow impact, reduce noise, and improve the stability of equipment operation.

[0036] Furthermore, as a preferred embodiment, it also includes an exhaust pipe 6, which is vertically installed on the ground. The outlet of the deodorizing fan 3 is connected to the side of the exhaust pipe 6 via a connecting pipe 8. The vertical exhaust pipe 6 utilizes the thermal lift effect to promote the high-altitude diffusion of exhaust gas and reduce the concentration of pollutants on the ground; the lateral connection design of the connecting pipe 8 can reduce airflow resistance, improve exhaust efficiency, and ensure that the treated exhaust gas meets emission standards.

[0037] Furthermore, in a preferred embodiment, the connecting pipe 8 includes a horizontal section 81 and a bent section 82. One end of the horizontal section 81 is connected to the side of the exhaust pipe 6, and the other end is connected to the air outlet of the deodorizing fan 3 via the bent section 82. The combination of the horizontal section 81 and the bent section 82 can smoothly guide the airflow, reduce eddies and energy loss, and reduce the fan's energy consumption.

[0038] Furthermore, as a preferred embodiment, a funnel-shaped rain cap 6 is installed at the top opening of the exhaust pipe 6. The funnel-shaped rain cap 6 can effectively block rainwater, preventing rainwater from entering the exhaust pipe 6 and corroding the equipment or affecting the exhaust effect. At the same time, its streamlined design can reduce wind resistance and ensure smooth exhaust.

[0039] Furthermore, as a preferred embodiment, it also includes a frame 4, which surrounds the outside of the deodorization chamber 1. The frame 4 has a maintenance platform 41, which is at the same height as the deodorization fan 3. The frame 4 provides stable support for the equipment, and the design of the maintenance platform 41 at the same height as the fan facilitates direct maintenance and repair of the fan by operators, reduces the risk of climbing, and improves the maintainability of the equipment.

[0040] Furthermore, as a preferred embodiment, the frame 4 also has a manual ladder 42 connected to the maintenance platform 41. The manual ladder 42 provides a safe passage for operators to inspect and maintain components at the top or high places of the deodorization chamber 1 (such as the plasma generator), reducing the difficulty and safety risks of working at height.

[0041] Furthermore, as a preferred embodiment, an electrical control cabinet 20 is also installed on the rack 4, and the electrical control cabinet 20 is connected to a high-frequency high-voltage pulsed DC power supply. The electrical control cabinet centrally controls the start-up, shutdown, voltage / frequency adjustment, and other parameters of the high-frequency high-voltage pulsed DC power supply to achieve automated operation of the equipment; at the same time, its protective design can prevent electromagnetic interference and misoperation, improving the safety and stability of equipment operation.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel plasma-based airflow deodorization device for municipal solid waste, characterized in that: include: The deodorization chamber includes a deodorization chamber and a plasma generator. The deodorization chamber has an air inlet at one bottom side and an air outlet at the top of the other end. A filter is connected to the air inlet, and a deodorization fan is connected to the air outlet. The plasma generator is located within the deodorization chamber, between the air inlet and the air outlet. The plasma generator includes: Multiple high-voltage pipes and multiple grounding pipes are arranged alternately and in a staggered manner. A high-frequency, high-voltage pulsed DC power supply, wherein the high-frequency, high-voltage pulsed DC power supply is electrically connected to multiple high-voltage tubes and multiple grounding tubes.

2. The air volume new plasma device for deodorizing municipal solid waste according to claim 1, characterized in that, The filter is a dry filter.

3. The air volume new plasma device for deodorizing municipal solid waste according to claim 2, characterized in that, The dry filter is connected to an exhaust gas inlet pipe at its air inlet.

4. The air volume new plasma device according to claim 3 for deodorizing municipal solid waste, characterized in that, The exhaust gas inlet pipe includes a vertical section and a curved section, and the vertical section is connected to the air inlet of the dry filter through the curved section.

5. The air volume new plasma device for deodorizing municipal solid waste according to claim 1, characterized in that, It also includes an exhaust pipe, which is vertically installed on the ground, and the air outlet of the deodorizing fan is connected to the side of the exhaust pipe through a connecting pipe.

6. The air volume new plasma device according to claim 5 for deodorizing municipal solid waste, characterized in that, The connecting pipe includes a horizontal section and a bent section. One end of the horizontal section is connected to the side of the exhaust pipe, and the other end is connected to the air outlet of the deodorizing fan through the bent section.

7. The air volume new plasma device according to claim 5 for deodorizing municipal solid waste, characterized in that, The top opening of the exhaust pipe is fitted with a funnel-shaped rain cap.

8. The air volume new plasma device according to claim 1 for deodorizing municipal solid waste, characterized in that, It also includes a frame surrounding the outside of the deodorization chamber, and the frame has a maintenance platform at the same height as the deodorization fan.

9. The air volume new plasma device according to claim 8 for deodorizing municipal solid waste, characterized in that, The frame also has a manual ladder that connects to the maintenance platform.

10. The air volume new plasma device according to claim 8 for deodorizing municipal solid waste, characterized in that, An electrical control cabinet is also installed on the rack, and the electrical control cabinet is connected to the high-frequency high-voltage pulse DC power supply.

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