Waste gas treatment air duct wind blocking and guiding assembly based on rotary jet flow arrangement

Abstract

The utility model provides a waste gas treatment air duct wind shielding and guiding assembly based on rotary jet flow arrangement. The waste gas treatment air duct wind shielding and guiding assembly comprises a vertical air duct and a wind shielding and guiding assembly body installed in the vertical air duct. The upper end of the vertical air duct is an air outlet end and used for installing a rotational flow fan and forming water mist rotational flow walking from bottom to top in the vertical air duct, and the lower end of the vertical air duct is an air inlet end and used for allowing waste gas to enter; the wind shielding and guiding assembly comprises a lower panel; the lower panel is a conical panel with the center protruding downwards, the outer diameter of the lower panel is smaller than the inner diameter of the vertical air channel, the lower panel and the vertical air channel are concentrically arranged, and the lower panel is used for blocking the vortex center and conducting water mist swirling flow outwards. The waste gas treatment air duct wind blocking and guiding assembly based on swirl jet flow arrangement can avoid premature forming of a vortex center flow channel, air flow is conducted to the periphery in time, and the separation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas purification technology, specifically, to a wind deflector and air guide component for waste gas treatment duct based on swirling jet processing. Background Technology

[0002] The technology that uses centrifugal jet technology as its core and employs water addition to treat particulate matter and volatiles in exhaust gas is widely used in the tobacco industry.

[0003] The reason is that the tobacco production process, such as flavoring and rehydration, involves the use of a large amount of water vapor. Tobacco also contains a large amount of particulate matter, such as tobacco dust, debris, and a certain amount of volatile substances. Due to the oily nature of tobacco, most of these substances are sticky, and the resulting exhaust gas can easily clog the filter cartridge, resulting in huge consumption of the filter cartridge.

[0004] Centrifugal jet technology combined with water mist fusion utilizes water mist to adsorb particulate matter, cooling to condense volatiles before adsorption, and absorption of some hydrophilic gaseous substances, along with centrifugal force to separate these substances.

[0005] In this structure, the roles of swirling and centrifugation are key. Its core is based on the technical principle of cyclone dust collectors. During the swirling process, the outer fluid is thrown towards the inner wall by centrifugal force, while the inner fluid is trapped by the "vortex". Cyclone dust collectors have a long length dimension and occupy a large volume of space, which allows for sufficient natural separation of airflow, thus achieving good separation effect. However, in tobacco production lines, the space constraints of existing equipment limit the space for newly added dust collection equipment, especially in height, resulting in insufficient travel distance. This could lead to some large particles being discharged before being separated, which is a major obstacle in the modification process of this solution.

[0006] How to guide airflow within a shorter travel path to maximize its separation is one of the urgent areas for improvement. To address these issues, people have been seeking an ideal technological solution. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a wind deflector and guide component for exhaust gas treatment ducts based on swirling jet ducting that can improve separation efficiency within a limited height.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: a wind deflector and air guide assembly for exhaust gas treatment duct based on swirling jet sorting, comprising a vertical duct and a wind deflector and air guide assembly installed in the vertical duct;

[0009] The upper end of the vertical air duct is the air outlet, which is used to install a vortex fan and form a water mist vortex that travels from bottom to top in the vertical air duct. The lower end of the vertical air duct is the air inlet, which is used to introduce exhaust gas.

[0010] The windbreak and air guide assembly is located in the lower half of the vertical air duct, and the windbreak and air guide assembly includes a panel below;

[0011] The lower panel is a conical panel with a downward convex center. The outer diameter of the lower panel is smaller than the inner diameter of the vertical air duct and is concentrically set with the vertical air duct. It is used to block the center of the vortex and conduct the water mist vortex outward.

[0012] Based on the above, the upper end of the lower panel is formed in a bucket shape, and a drainage hole is provided at the center of the lower panel.

[0013] Based on the above, the wind deflector assembly further includes an upper panel, which is a neutrally upward-convex conical panel. The outer diameter of the upper panel is smaller than the inner diameter of the vertical air duct and is concentrically arranged with the vertical air duct.

[0014] Based on the above, the outer diameters of the upper panel and the lower panel are equal.

[0015] Based on the above, the protrusion heights of the upper panel and the lower panel are equal to form a spindle shape with symmetrical ends.

[0016] Based on the above, the lower plate is provided with spiral patterns, and the spiral pattern rotates in the same direction as the water mist vortex.

[0017] Based on the above, the lower plate has vertical stripes distributed radially from the center.

[0018] Based on the above, the lower panel has a glossy surface.

[0019] Based on the above, the windbreak and air guide assembly is fixed to the inner wall of the vertical air duct by a connecting rod.

[0020] Based on the above, the wind deflector assembly is installed in the vertical air duct via a vertical shaft, and the top end of the vertical shaft is used to connect with the output shaft of the cyclone fan.

[0021] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages:

[0022] Installing a wind deflector and guide component in the lower half of the vertical air duct, i.e., the air intake side, can, on the one hand, block the generation of small-diameter vortices, forcing them to bypass the lower panel before reforming, thus slowing down the formation of vortices and reducing the interference of the airflow at the center of the vortex on particles; on the other hand, some particles are intercepted when they collide with the lower panel, while others are guided by the shape of the conical panel to the area near the inner wall of the vertical air duct, where they are more affected by centrifugal force and are easier to separate. The combination of these factors significantly improves the separation efficiency while ensuring that the vertical space is controlled within a reasonable range. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the exhaust gas treatment duct baffle and air guide component based on swirling jet sorting in Embodiment 1 of this utility model.

[0024] Figure 2 This is a schematic diagram of the structure of the exhaust gas treatment duct baffle and air guide component based on swirling jet sorting in Embodiment 2 of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the exhaust gas treatment duct baffle and air guide component based on swirling jet sorting in Embodiment 3 of this utility model.

[0026] Figure 4 This is a schematic diagram of the spiral-patterned lower panel in Embodiment 1 of this utility model.

[0027] Figure 5 This is a schematic diagram of the lower panel with vertical stripes in Embodiment 1 of this utility model.

[0028] In the diagram: 1. Vertical air duct; 2. Wind deflector and air guide assembly; 3. Swirl fan; 4. Connecting rod; 11. Air outlet; 12. Air inlet; 21. Lower panel; 22. Drain hole; 23. Upper panel; 24. Vertical axis. Detailed Implementation

[0029] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0030] Example 1

[0031] like Figure 1 As shown, a wind deflector and guide assembly for exhaust gas treatment based on swirling jet ducting includes a vertical duct 1 and a wind deflector and guide assembly 2 installed in the vertical duct 1.

[0032] The upper end of the vertical air duct 1 is the air outlet 11, which is used to install the cyclone fan 3 and form a water mist vortex that travels from bottom to top in the vertical air duct. The lower end of the vertical air duct 1 is the air inlet 12, which is used to enter the exhaust gas. It should be noted that the air path constructed by the cyclone fan 3, the vertical air duct 1, and several water mist nozzles is existing technology. It is the core means of removing impurities in the exhaust gas by centrifugal force under water mist vortex. Therefore, this embodiment will not elaborate on it too much, but will only further describe the added innovative structure: the wind deflector component 2.

[0033] The wind deflector and air guide assembly 2 is located in the lower half of the vertical air duct 1. The wind deflector and air guide assembly is fixed to the inner wall of the vertical air duct by a connecting rod 4. The wind deflector and air guide assembly 2 includes a lower panel 21.

[0034] In this embodiment, the lower panel 21 is a conical panel with a downward convex center. The outer diameter of the lower panel is smaller than the inner diameter of the vertical air duct and is concentrically arranged with the vertical air duct. It is used to block the center of the vortex and conduct the water mist vortex outward.

[0035] Working principle explanation:

[0036] Before and during the process of the exhaust gas entering the vertical air duct 1, water mist nozzles will spray the exhaust gas. The purpose is to allow the fine water droplets in the water mist to adsorb together with the particulate matter in the exhaust gas. Through continuous adsorption and combination, the overall weight increases, and the influence of centrifugal force and gravity increases. Then, under the action of gravity and centrifugal force, it is separated from the airflow.

[0037] Because the height of the vertical duct 1 is limited, and the vortex formed by the vortex fan 3 in the central area makes it difficult for the particles located in the center to be transferred outward in time, a lower panel 21 is added. On the one hand, since the lower panel 21 is located on the inlet side, it blocks the formation of the vortex. On the other hand, due to the shape design of the lower panel 21, the airflow can flow around along the conical surface of the lower panel 21 without hindering the formation of the vortex. It only delays the formation process of the central vortex. Since the wind force has not changed, the airflow velocity near the inner wall of the vertical duct 1 will be locally increased, optimizing the efficiency of particle separation.

[0038] In addition, the lower panel also plays a certain role in blocking. Some of the particulate matter in the exhaust gas will be intercepted after it hits the lower panel 21. When it condenses into larger water droplets, it will drip down with the cone surface of the lower panel for wastewater treatment.

[0039] To optimize the airflow delivery effect, in this embodiment, as follows: Figure 4 As shown, the lower plate is covered with spiral patterns, and the spiral direction is consistent with the direction of the water mist swirl, which can assist the flow of the swirl.

[0040] In other embodiments, such as Figure 5 As shown, the lower plate has vertical stripes distributed radially from the center, or it may have a smooth surface.

[0041] In this embodiment, the upper end of the lower panel 21 is formed into a funnel shape, and a drain hole 22 is provided at the center of the lower panel. A portion of the condensed and dripping water droplets located above fall into the funnel shape of the lower panel 21 and converge at the drain hole 22 for discharge.

[0042] Example 2

[0043] like Figure 2 As shown, the difference between this embodiment and embodiment 1 is that the windbreak and air guide assembly further includes an upper panel 23, which is a neutrally upward convex conical panel. The outer diameter of the upper panel is smaller than the inner diameter of the vertical air duct and is concentrically arranged with the vertical air duct.

[0044] In this embodiment, the outer diameters of the upper panel and the lower panel are equal, and the protrusion heights of the upper panel and the lower panel are equal, so as to form a spindle shape with symmetrical ends.

[0045] Its special feature is that the shape of the upper panel of the wind deflector and air guide component is more in line with the swirling flow direction of the airflow, which will not cause local airflow disturbance and is more conducive to the swirling effect. At the same time, the water-containing waste dripping from the top drips down from the outside, and there is no need to set up a drain hole.

[0046] Example 3

[0047] like Figure 3 As shown, the main difference between this embodiment and embodiments 1 and 2 is that the wind deflector and air guide assembly 2 is installed in the vertical air duct 1 via a vertical shaft 24, and the top end of the vertical shaft 24 is used to connect with the output shaft of the vortex fan 3.

[0048] In this embodiment, the wind deflector component 2 becomes a powered component. The top and bottom ends of the vertical shaft 24 can be installed with bearings to ensure that it does not wobble. When rotating at high speed, in addition to the aforementioned functions, it can also provide a certain amount of slamming force, which is beneficial to the further dispersion and atomization of water mist and its combination with particulate matter, thereby improving separation efficiency. However, it has higher requirements for waterproofing and installation.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A wind deflector and guide assembly for exhaust gas treatment ducts based on swirling jet ducting, characterized in that: Includes vertical air ducts and wind-blocking and air-guiding components installed in the vertical air ducts; The upper end of the vertical air duct is the air outlet, which is used to install a vortex fan and form a water mist vortex that travels from bottom to top in the vertical air duct. The lower end of the vertical air duct is the air inlet, which is used to introduce exhaust gas. The windbreak and air guide assembly is located in the lower half of the vertical air duct, and the windbreak and air guide assembly includes a panel below; The lower panel is a conical panel with a downward convex center. The outer diameter of the lower panel is smaller than the inner diameter of the vertical air duct and is concentrically set with the vertical air duct. It is used to block the center of the vortex and conduct the water mist vortex outward.

2. The exhaust gas treatment duct baffle and air guide assembly based on swirling jet ducting as described in claim 1, characterized in that: The upper end of the lower panel is shaped like a bucket, and a drainage hole is provided at the center of the lower panel.

3. The exhaust gas treatment duct baffle and air guide assembly based on swirling jet ducting as described in claim 1, characterized in that: The windbreak and air guide assembly also includes an upper panel, which is a neutrally upward-convex conical panel. The outer diameter of the upper panel is smaller than the inner diameter of the vertical air duct and is concentrically arranged with the vertical air duct.

4. The exhaust gas treatment duct baffle and air guide assembly based on swirling jet sorting according to claim 3, characterized in that: The outer diameters of the upper panel and the lower panel are equal.

5. The exhaust gas treatment duct baffle and air guide assembly based on swirling jet sorting according to claim 4, characterized in that: The upper and lower panels have equal protrusion heights to form a spindle shape with symmetrical ends.

6. The exhaust gas treatment duct baffle and air guide assembly based on swirling jet sorting according to claim 1, characterized in that: The bottom plate is covered with spiral patterns, and the spiral direction of the spiral patterns is consistent with the spiral direction of the water mist vortex.

7. The exhaust gas treatment duct baffle and air guide assembly based on swirling jet sorting according to claim 1, characterized in that: The bottom plate has vertical stripes that radiate outwards from the center.

8. The exhaust gas treatment duct baffle and air guide assembly based on swirling jet ducting as described in claim 1, characterized in that: The lower panel has a smooth surface.

9. The exhaust gas treatment duct baffle and air guide assembly based on swirling jet ducting as described in claim 1, characterized in that: The windbreak and air guide assembly is fixed to the inner wall of the vertical air duct by a connecting rod.

10. The exhaust gas treatment duct baffle and air guide assembly based on swirling jet ducting as described in claim 1, characterized in that: The windbreak and air guide assembly is installed in the vertical air duct via a vertical shaft, and the top end of the vertical shaft is used to connect with the output shaft of the cyclone fan.

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