Synergistic and energy-saving arc-shaped flow guide ventilation blowdown system aiming at high-temperature pollution source and blowdown method thereof

Abstract

The invention belongs to the technical field of ventilation and pollution discharge, and particularly relates to a synergistic energy-saving arc-shaped flow guide ventilation and pollution discharge system for a high-temperature pollution source and a pollution discharge method thereof. A local negative pressure area is created at an inlet of the dust removal cover mainly through a driving motor by introducing a movable arc-shaped flow baffle and utilizing natural guidance of airflow; the negative pressure area generates upward acting force, when the high-temperature pollution source generates high-temperature particle pollutants and hot jet flow, the high-temperature particle pollutants and the hot jet flow are sucked into the dust removal pipeline under the upward acting force and the suction force effect of the high-speed fan, and the pollutants are efficiently filtered in the dust removal pipeline through the dust removal filtering device. Gas is discharged after being purified, remaining unpurified particles are collected into the dust collecting device in the subsequent treatment process, and in the whole process, the flexible adjustment of the flow baffle is combined with the efficient dust removal filtering device, so that the efficient energy-saving and stable operation of the ventilation and pollution discharge system is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of ventilation and dust removal, and in particular relates to an energy-saving arc-shaped flow-guiding ventilation and sewage discharge system and a sewage discharge method thereof for high-temperature pollution sources. Background Art

[0002] In the field of modern industrial manufacturing, especially in process links involving high-temperature operations and material handling, dust pollution is an issue that cannot be ignored. In these process steps, high-temperature heat sources (such as furnaces, heat treatment equipment, etc.) will continuously generate hot jets, and the high-speed movement of materials will also induce the flow of surrounding air, forming a complex airflow environment. These airflows carry a large number of dust particles, posing a serious threat to the production environment, equipment maintenance and personnel health. Traditional dust hoods, such as receiving hoods, are generally set in a rectangular shape and placed near the source of dust generation to guide and control the direction of dust-laden airflow. It uses the negative pressure effect naturally formed at the opening to suck the dust-laden airflow into the hood. In the hood, the dust particles in the dust-laden airflow are subjected to the combined effects of multiple physical forces such as gravity, inertia and diffusion, and gradually deposit in the hood or continue to move forward with the airflow to subsequent dust removal equipment, such as bag filters or electrostatic precipitators, for more in-depth purification. Although this method can capture these dusts to a certain extent, its design is often based on a simple airflow interception principle, ignoring the complexity and dynamics of airflow movement. Especially in the application scenario of high-hanging hoods, due to the distance from the heat source and the susceptibility to interference from lateral airflow, the hot jet is prone to deflection during the rising process, resulting in dust leakage and greatly reducing the dust removal effect. In addition, in order to compensate for this defect, traditional dust hoods often need to increase the exhaust volume, which not only increases energy consumption, but also may cause excessive fan noise, affecting the production environment. Summary of the invention

[0003] The present invention provides an energy-saving arc-shaped diversion ventilation and sewage discharge system and sewage discharge method for high-temperature pollution sources, so as to solve the technical problems existing in the prior art that dust accumulation and the thermal jet generated by the high-temperature pollution source are easily deviated during the rising process, resulting in dust leakage and reducing the ventilation and sewage discharge effect.

[0004] In order to achieve the above object, the present invention adopts the following technical solution: An efficiency-enhancing and energy-saving arc-shaped guide ventilation and sewage discharge system for high-temperature pollution sources acts on the high-temperature pollution sources. A dust removal duct is arranged directly above the high-temperature pollution source. The high-temperature pollution source generates a hot jet. A high-speed fan and a dust removal filter device are arranged in the dust removal track. An arc-shaped guide plate is arranged between the dust removal duct and the high-temperature pollution source. The arc-shaped guide plate is installed on the side of the lateral wind flow of the high-temperature pollution source. The arc-shaped guide plate includes a high-temperature resistant thin steel coil. The high-temperature resistant thin steel coil is connected to a drive motor. The drive motor drives the expansion or retraction of the high-temperature resistant thin steel coil.

[0005] A connecting bracket is arranged on one side of the arc guide plate, and when dust is not removed, a high temperature resistant thin steel coil is placed inside the connecting bracket.

[0006] The driving motor is arranged on the connecting bracket.

[0007] The arc guide plate also includes two arc guide rails, which are respectively arranged at the upper and lower ends of the high temperature resistant thin steel coil, and the guide rails are mutually embedded with the upper and lower ends of the high temperature resistant thin steel coil.

[0008] The arc-shaped guide plate also includes a transmission mechanism, which is arranged inside the guide rail of the arc-shaped guide rail and is connected to the drive motor.

[0009] A dust removal hood is provided at the channel entrance of the dust removal track, and the dust removal hood is hung just above the high-temperature pollution source.

[0010] A dust collecting device is arranged at the passage outlet of the dust removal track.

[0011] A sewage discharge method for an energy-efficient arc-shaped guide ventilation sewage discharge system for high-temperature pollution sources, wherein the dust removal method is as follows: a driving motor controls a transmission mechanism to move along an arc-shaped guide rail from one end of the arc-shaped guide rail to the other end of the arc-shaped guide rail, and the transmission mechanism drives a high-temperature resistant thin steel coil to move outward, and the high-temperature resistant thin steel coil is in an unfolded state, at which time the high-temperature resistant thin steel coil and the upper and lower arc-shaped guide rails form an arc-shaped baffle; when a high-temperature pollution source generates high-temperature particulate pollutants and a hot jet, the high-temperature particulate pollutants and the hot jet are sucked into a dust removal pipeline under the action of a high-speed fan and transported to a dust removal and filtering device for high-efficiency filtration treatment, and the gas is discharged after purification.

[0012] When a high-temperature pollution source releases high-temperature particulate pollutants and thermal jets, the lateral airflow is guided by the arc-shaped baffle to change its direction. When the airflow on one side passes through, a negative pressure area will be formed on the other side of the arc-shaped baffle. The negative pressure area generates a pressure difference, further providing lift for the high-temperature particulate pollutants and thermal jets.

[0013] The shape of the curved guide plate needs to be standardized when it is used. The shape formula for the curved guide plate is:

[0014] in, , Y is the y-axis coordinate corresponding to the point on the arc curve of the arc guide plate (8), X is the x-axis coordinate corresponding to the point on the curve of the arc guide plate (8), the x-axis and the y-axis both take the center point of the high-temperature pollution source (1) as the origin, the direction of the x-axis is the direction of the straight line between the two ends of the arc guide plate (8), the y-axis is perpendicular to the x-axis and has the direction pointing to the arc guide plate (8) as the positive direction, the positive direction of the x-axis is perpendicular to the y-axis to the left, R is the radius of the high-temperature pollution source, and the unit of R is mm.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses an energy-saving arc-shaped flow-guiding ventilation and sewage discharge system for high-temperature pollution sources and a sewage discharge method thereof, wherein an arc-shaped baffle is installed on the side of the lateral wind flow near the high-temperature pollution source. By introducing a movable arc-shaped baffle and utilizing the natural guiding property of the airflow, a local negative pressure area is created at the entrance of the dust hood. This can guide and accelerate the hot jet and induce the dust particles in the airflow to gather inside the dust hood, greatly improving the dust capture efficiency. Compared with the traditional dust hood, it more effectively reduces the diffusion and escape of dust in the air and improves the air quality of the working environment. In the present invention, the baffle assembly is composed of upper and lower arc-shaped guide rails, a connecting bracket and a high-temperature resistant thin steel coil. This modular design gives the dust hood extremely high flexibility and adjustability. The user can easily adjust the angle and position of the baffle according to the process requirements in actual production, the specific shape and position changes of the high-temperature pollution source, and ensure that the dust hood can always operate in the most optimized state to achieve the most effective collection of dust. This adaptability not only improves the dust removal efficiency, but also reduces maintenance costs and time.

[0016] Furthermore, the present invention improves the dust capture efficiency by optimizing the airflow path, and correspondingly reduces the dust removal system's reliance on large air volume and high wind speed. This means that under the premise of achieving the same dust removal effect, the energy consumption required by the fan is significantly reduced, which helps companies reduce operating costs. At the same time, the reduction in the fan's operating load also directly reduces noise pollution, creating a more comfortable working environment for employees, which is in line with modern industry's pursuit of green and sustainable development. The use of high-temperature resistant thin steel coils enables the baffle to withstand high-temperature environments, reducing material deformation or damage caused by high temperatures, thereby extending the service life of the dust hood and its accessories. In addition, efficient dust capture reduces the deposition of dust inside the equipment, further reduces equipment wear and failure rates, and improves the stability and reliability of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : Schematic diagram of an energy-saving arc-shaped diversion ventilation and drainage system for high-temperature pollution sources; Figure 2 : Schematic diagram of the arc guide plate; Figure 3 : Indoor air flow diagram of arc-shaped diversion ventilation and sewage system; Figure 4 : Velocity cloud diagram at the z-axis section when the lateral wind speed of the arc-shaped diversion ventilation and sewage system is 1 m / s; Figure 5 : Pressure cloud diagram at the z-axis section of the arc-shaped diversion ventilation and sewage system; Figure 6 : Single coupling diagram of 0.5-50㎛ pollutant particles from high temperature pollution sources in dust removal system; Figure 7 : Indoor air flow diagram of the dust removal hood system above the high temperature pollution source; Figure 8 : Comparison of temperature distribution above the high temperature pollution source of the dust removal hood system; Fig. 9 : Velocity cloud diagram at the z-axis section under the same wind speed above the high temperature pollution source; Fig.10 : Pressure cloud diagram at the z-axis section under the same wind speed above the high temperature pollution source; Fig.11 :Single coupling diagram of 0.5-50㎛ pollutant particles from high temperature pollution sources in ventilation and sewage exhaust system without guide plates.

[0018] Labels: 1. High-temperature pollution source; 2. Dust hood; 3. Hot jet; 4. High-speed fan; 5. Dust removal filter; 6. Dust removal duct; 7. Dust collection device; 8. Arc baffle; 9. Arc guide rail; 10. Connecting bracket; 11. Transmission mechanism; 12. High-temperature resistant thin steel coil; 13. Driving motor. DETAILED DESCRIPTION

[0019] In order to further understand the content of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0020] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] See also Figure 1 and Figure 2 A dust hood 2 is suspended above the high-temperature pollution source 1. The dust hood 2 is a four-sided pyramid structure with four trapezoidal sides. The side of the dust hood 2 facing the high-temperature pollution source 1 is a large-diameter surface. The small-diameter surface of the dust hood 2 is connected to the pipeline inlet of the dust removal pipeline 6. The pipeline outlet of the dust removal pipeline 6 is connected to a dust collecting device 7. The dust removal pipeline 6 is an L-shaped pipeline. A high-speed fan 4 and a dust removal filter 5 are also arranged inside the dust removal pipeline 6. The high-speed fan 4 is arranged at a position of the dust removal pipeline 6 close to the dust hood 2, and the dust removal filter 5 is arranged at a position near the turning point in the dust removal pipeline 6; a movable arc baffle 8 is installed on one side above the high-temperature pollution source 1. The arc baffle 8 is a semi-arc baffle. A connecting bracket 10 is installed on one side of the arc baffle 8. The arc baffle 8 retracts inside the connecting bracket 10 when not in use. Figure 1 and Figure 2In the figure, when the high-temperature pollution source 1 generates pollutants and needs to be removed, the arc baffle 8 is in the unfolded state; a driving motor 13 is installed at the upper and lower ends of the connecting bracket 10, and the entire plate surface of the arc baffle 8 is composed of a high-temperature resistant thin steel coil 12. The upper and lower ends of the high-temperature resistant thin steel coil 12 are provided with arc guide rails 9, and a transmission mechanism 11 is provided in the arc guide rail 9. The transmission mechanism 11 is embedded with the arc guide rail 9, and the transmission mechanism 11 can slide along the arc guide rail 9. The transmission mechanism 11 is connected to the high-temperature resistant thin steel coil 12, and the transmission mechanism 11 drives the high-temperature resistant thin steel coil 12 to slide along the arc guide rail 9.

[0022] Example 1 This embodiment provides an energy-saving arc-shaped flow-guiding ventilation and drainage system for high-temperature pollution sources and a drainage method thereof, and the specific implementation method thereof is as follows: First, according to the actual situation, a numerical calculation model with a room size of 4000(x)×4000(y)×4000(z) (mm3) is established. The size of the pollutant storage tank is: (diameter 600mm, height 800mm), the size of the dust cover 2: the upper part is 600(x)×600(y)×850(z)mm, and the lower part is a trapezoidal column with the size of 600(x)×600(y) (mm) on the upper part and 1200(x)×1200(y) (mm) on the lower part, and the height is 400mm. In this embodiment, a cylindrical pollution source is used, and the center point of the high-temperature pollution source 1 is taken as the origin to establish the xyz axis coordinates. The direction of the x-axis is the straight line direction between the two ends of the arc guide plate 8, and the y-axis is perpendicular to the x-axis and the positive direction is the direction pointing to the arc guide plate (8). The positive direction of the x-axis is perpendicular to the left side of the y-axis, and the z-axis is perpendicular to the x-axis and the y-axis and its positive direction is vertically upward; the curvature formula of the arc baffle 8 is: , where Y is the y-axis coordinate corresponding to the point on the arc curve of the arc guide plate (8), X is the x-axis coordinate corresponding to the point on the curve of the arc guide plate (8), 0≪Y≪2R, -2.3R≪X≪2.3R, R is in mm; the height H of the arc baffle 8 is 1950 (mm), the distance L between the maximum arc of the arc baffle 8 and the high-temperature pollution source 1 is 600 (mm), the right wall of the room is supplied with air, the horizontal supply air temperature is 292K, and the supply air speed is 1m / s; the left wall of the room is free outflow, the high-temperature pollution source 1 is simplified to a velocity inlet, the supply air temperature is 360K, and the supply air speed is 0.5m / s. At the same time, the dpm discrete term model is added, and the other walls are insulated.

[0023] In the preparation stage when the ventilation and sewage system is not started, the dust cover 2 is hung above the high-temperature pollution source 1 on the operating table, and the movable arc baffle 8 on the right side above the high-temperature pollution source 1 is completely stored in the connection 10 on one side of the arc baffle 8 by the high-temperature thin steel coil 12, which is in a retracted state, and the arc guide rail 9 slots at the upper and lower ends of the high-temperature thin steel coil 12 are vacant. With the start of production activities, according to the specific situation of the high-temperature pollution source 1, the transmission mechanism 11 is electrically driven by the drive motor 13 to adjust the thin steel coil, and the transmission mechanism 11 moves outward along the arc guide rail 9. The transmission mechanism 11 drives the high-temperature thin steel coil 12 to slowly pull out to a predetermined length, and fix it with the slot to form an arc baffle 8 with the best arc.

[0024] When the high temperature pollution source 1 releases high temperature particulate pollutants and heat jets 3, the lateral airflow is guided by the arc baffle 8 to change its flow direction. The lateral airflow on the right side of the room passes through the arc baffle 8, and its flow path changes significantly when it flows through the arc baffle 8. Figure 3 As shown, due to the unique arc structure of the arc guide plate 8, the airflow can be cleverly guided to bypass its surface, thereby forming a negative pressure area on the left side of the arc guide plate 8, a key area adjacent to the high-temperature pollution source 1, and inducing a strong upward airflow. The lift generated by the upward airflow combined with the action of the hot air flow and the suction of the high-speed fan 4 causes the pollutants to move toward the dust hood 2 above.

[0025] like Figure 3 As shown in the figure, the indoor air streamline diagram of the arc-shaped guide ventilation and sewage system clearly shows that the horizontal airflow originating from the right side of the room changes significantly when it flows through the arc-shaped guide plate 8. Due to the unique arc structure of the arc-shaped guide plate 8, the airflow can be cleverly guided to bypass its surface, thereby inducing a strong upward airflow in the key area on the left side of the arc-shaped guide plate 8, which is close to the high-temperature pollution source 1.

[0026] like Figure 4 As shown in the figure, the velocity cloud diagram at the z-axis section when the horizontal wind speed of the arc-shaped guide ventilation and sewage system is 1 m / s. It can be seen that after adding the guide plate, when the airflow blown out from the right side with an initial wind speed of 1 m / s flows through the arc-shaped guide plate 8, its speed is rapidly reduced to about 0.4 m / s, achieving effective deceleration and direction adjustment of the airflow. It is particularly noteworthy that the left area of ​​the arc-shaped guide plate 8 forms two significant vortex structures - one large and one small - due to the complex interaction of the airflow. The two vortices work together to effectively suck and guide the polluted airflow above the high-temperature pollution source 1 upward until it is sent into the exhaust hood, and then it is completely removed from the room through the efficient dust removal and filtering device 5, achieving effective isolation and removal of pollutants. This design not only optimizes the indoor airflow organization, but also significantly improves the air purification efficiency and indoor environmental quality.

[0027] like Figure 5 As shown, the pressure distribution cloud diagram of the arc-shaped guide ventilation and sewage system in this embodiment on the z-axis section is presented. The figure shows in detail the characteristics of the pressure field in the system, and especially points out that on the left and right sides of the exhaust hood, especially on the side close to the lateral wind flow, the pressure level is significantly higher than the area below the exhaust hood, forming an obvious pressure gradient difference. Further observation shows that the pressure gradient from the high-temperature pollution source 1 to the hood opening of the dust hood 2 gradually decreases from strong to weak. This feature is particularly significant on the left side of the arc-shaped guide plate 8, where a clear negative pressure area is formed. It is the existence of this negative pressure area that produces a strong traction force on the pollutant particles, prompting them to be quickly and efficiently sucked into the exhaust hood, and then completely removed from the room through the ventilation and sewage system. This phenomenon strongly proves the excellent performance and superiority of the arc-shaped guide ventilation and sewage system in negative pressure dust removal.

[0028] Subsequently, the hot polluted gas and particulate matter are sucked into the dust hood 2, and then enter the dust removal pipe 6 through the dust hood 2, and are further transported to the dust removal filter device 5 for high-efficiency filtration treatment. After the gas is purified, it is discharged from the working area, and the unpurified particulate matter remaining after purification is intercepted and collected in the dust collection device 7 in the subsequent treatment process, and then the collected particulate matter can be reused. In the whole process, the flexible adjustment of the arc baffle 8 and the combination of the high-efficiency dust removal filter device ensure the high efficiency, energy saving and stable operation of the system.

[0029] like Figure 6 As shown, Figure a is 0.5 Single coupling diagram; Figure b is 1 Single coupling diagram; Figure c is 10 Single coupling diagram; Figure d is 50 Single coupling diagram; Figure e is 0.5 -50 Single coupling diagram; ventilation and sewage system for 0.5 -50 Schematic diagram of the single coupling effect of pollutant particles within a certain particle size range. The figure clearly shows that under the interference of lateral wind, particles with a size between 0.5 -10 More than 90% of the pollutant particles are captured by the high-efficiency dust hood and then safely discharged out of the room through the purification and filtration mechanism. -50 ) pollutant particles, although their mass is relatively heavy, but thanks to the airflow power generated by the carefully designed negative pressure effect of the system, most of the particles can be effectively removed. Overall, this energy-saving arc-shaped guide dust removal system for high-temperature pollution sources can effectively remove 0.5 Up to 50 It demonstrates excellent capture and treatment capabilities for pollutant particles within the entire particle size range, with an overall capture efficiency of over 85%. Its significant dust removal effect provides a solid guarantee for creating a clean and healthy indoor environment.

[0030] Example 2 This embodiment retains the same main body configuration as the embodiment, except that the arc guide plate 8 is removed. A comparative test is conducted with embodiment 1 on the dust removal effect of the dust hood on the upper part of the high-temperature pollution source and the speed, pressure and temperature distribution in its working area.

[0031] When the air supply speed is set to be maintained at 1m / s, due to the absence of the arc-shaped guide plate 8, the system shows obvious differences under the same exhaust volume and air supply speed settings. Specifically, the wind speed above the high-temperature pollution source 1 is significantly enhanced, and the negative pressure effect originally generated by the arc-shaped guide plate 8 disappears completely. This change directly affects the flow characteristics of the thermal jet 3 generated by the high-temperature pollution source 1. The intervention of lateral wind force causes the particulate pollutants to no longer be limited to the original path, but to deflect significantly to the left side of the room, which makes the hood of the originally designed dust hood 2 unable to effectively capture and collect all pollutant particles, which is ultimately reflected in a sharp decline in dust removal efficiency.

[0032] like Figure 7 As shown in the figure, the indoor air streamline diagram of the dust hood system is received above the heat source. The figure clearly shows that when the lateral airflow from the right side of the room passes through the lower area of ​​the dust hood 2, its flow pattern is not obviously disturbed or guided, resulting in the original negative pressure capture area under the dust hood 2 no longer existing, and the dust-laden airflow that should have risen smoothly is significantly weakened, which directly weakens the processing capacity and efficiency of the entire ventilation and sewage system.

[0033] like Figure 8 As shown, a comparison diagram of the temperature distribution above the high-temperature pollution source of the dust hood system is shown, in which Figure a is a ventilation and sewage exhaust system without an arc guide plate; Figure b is a system diagram with an arc guide plate; from this comparison diagram, it can be clearly seen that for the ventilation and sewage exhaust system not equipped with an arc guide plate 8, the temperature distribution on the top of the high-temperature pollution source is significantly limited by the interference of the lateral airflow, resulting in the heat flow being limited to a small area directly above the high-temperature pollution source, and the heat flow path is biased to the left, making it difficult to effectively climb to the bottom of the dust hood, thereby limiting the smooth discharge of pollutant particles due to the lack of necessary lift.

[0034] On the other hand, the unique advantages of the energy-saving system designed with the arc-shaped guide plate 8 are obvious at a glance: the high-temperature gas generated by the high-temperature pollution source 1 forms an orderly entrainment and climbing flow pattern along the left side of the arc-shaped guide plate 8 under the ingenious guidance of the arc-shaped guide plate 8, and is directly guided to the inside of the dust hood 2. This process not only significantly enhances the lift effect of the airflow, greatly promotes the efficient separation and emission of pollutant particles, shortens the dust removal cycle, but also reduces the exhaust volume and speed requirements of the dust hood 2 by optimizing the airflow path, achieving the dual goals of energy saving and emission reduction and low-noise operation, and demonstrating the excellent performance of the system in improving dust removal efficiency and reducing energy consumption.

[0035] like Fig. 9 As shown, the velocity cloud diagram at the z-axis section at the same wind speed above the high-temperature pollution source 1, the lateral wind speed above the high-temperature pollution source 1 is 1 m / s. It can be seen from the figure that the wind speed between the top of the high-temperature pollution source 1 and the dust hood 2 is stably maintained between 1-1.5 m / s, which is mainly affected by the lateral wind and directly blows over the surface of the high-temperature pollution source 1, resulting in the pollution particles being unable to rise into the dust hood 2 with the airflow.

[0036] like Fig.10 As shown in the figure, the pressure cloud diagram at the z-axis section at the same wind speed above the high-temperature pollution source 1 shows that the pressure in the area above the high-temperature pollution source 1 is mainly maintained in a small fluctuation range of 0 to 0.2, indicating that no significant negative pressure effect area has been formed in this area, which is contrary to the negative pressure environment construction expected in the traditional dust removal mechanism. Only near the dust hood 2, due to the direct intervention of the blowing and suction of the high-speed fan 4, a small negative pressure area is formed locally. However, the limitations and non-uniformity of this area directly lead to a significant weakening of the overall negative pressure effect, which in turn has an adverse effect on the dust removal efficiency, so that the dust removal effect of the system fails to reach the expected level under the optimal design.

[0037] like Fig.11 As shown, the high temperature pollution source of the ventilation and sewage system without guide plate is 0.5 -50 Pollutant particle single coupling diagram, Figure a is 0.5 Single coupling diagram; Figure b is 1 Single coupling diagram; Figure c is 10 Single coupling diagram; Figure d is 50 Single coupling diagram; Figure e is 0.5 -50 Single coupling diagram; the figure clearly shows that under the significant interference of the lateral wind, the same exhaust volume and exhaust speed as in Example 1 are maintained, and the dust hood 2 is 0.5 to 50 Pollutant particles in the particle size range showed weaker capture and discharge capabilities.

[0038] In order to achieve the same dust removal effect as Example 1, the system parameters must be adjusted. Specifically, the exhaust volume is required to be significantly increased, and the exhaust volume should be no less than 5.3m³ / s, while the air velocity at the inlet is increased, and the air velocity should be no less than 14.7m / s. In addition, the size of the mouth of the dust hood 2 needs to be expanded to a size of more than 2.8×2.8m.

[0039] In summary, under the comparison of the same air supply conditions, the energy-saving arc-shaped guide ventilation and sewage exhaust system for high-temperature pollution sources in Example 1 shows its unique advantages. Specifically, when the airflow passes through the arc-shaped guide plate 8, its airflow velocity distribution shows a significant difference: the airflow velocity in the arc-shaped guide plate 8 area is significantly reduced, while the left side thereof shows a velocity increase phenomenon. This design promotes the vertical upward movement of pollutant particles. Compared with the dust removal hood 2 on the upper part of the traditional heat source, its velocity distribution pattern is more conducive to the efficient discharge of pollutant particles. Furthermore, under the joint action of wind pressure and heat pressure, a significant negative pressure area is naturally formed in the area on the left side of the arc-shaped guide plate 8. Compared with the traditional ventilation and sewage exhaust system, this negative pressure effect greatly enhances the attractiveness of the dust removal area, thereby achieving a more excellent dust removal effect. By intuitively comparing the movement trajectories of pollutant particles in the two systems, the superior dust removal performance of the energy-saving arc-shaped guide ventilation and sewage exhaust system for high-temperature pollution sources is undoubtedly highlighted. It is particularly worth mentioning that in order to achieve ventilation and sewage treatment effects comparable to those of traditional ventilation and sewage treatment systems, the energy-saving arc-shaped diversion ventilation and sewage treatment system for high-temperature pollution sources only requires a lower exhaust volume (reduced by 67.4%), a slower exhaust speed (reduced by up to 91.8%), and a significant reduction in the size of the hood (reduced by 87.2%). This series of technological innovations not only achieves a significant reduction in energy consumption and effective control of operating noise, but also greatly saves material costs and installation space. At the same time, the sewage treatment efficiency has been significantly improved. Therefore, the energy-saving arc-shaped diversion ventilation and sewage treatment system for high-temperature pollution sources has brought great improvements to the field of industrial dust removal with its excellent performance parameters (see Table 1 for details). The specific ventilation and sewage treatment parameter comparison table is shown in Table 1.

[0040] Table 1

[0041] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. An energy-saving arc-shaped flow-guiding ventilation and drainage system for high-temperature pollution sources, characterized in that: The invention comprises a high-temperature pollution source (1), a dust removal duct (6) is arranged directly above the high-temperature pollution source (1), the high-temperature pollution source (1) generates a hot jet (3), a high-speed fan (4) is arranged in the dust removal track (6), an arc-shaped guide plate (8) is arranged between the dust removal duct (6) and the high-temperature pollution source (1), the arc-shaped guide plate (8) is installed on the side of the lateral wind flow of the high-temperature pollution source (1), and the arc-shaped guide plate (8) comprises a high-temperature resistant thin steel coil (12), and the high-temperature resistant thin steel coil (12) is connected to a drive motor (13), and the drive motor (13) drives the high-temperature resistant thin steel coil (12) to expand or retract.

2. According to claim 1, the energy-saving arc-shaped flow-guiding ventilation and sewage discharge system for high-temperature pollution sources is characterized in that: A dust removal filter device (5) is also provided in the dust removal track (6).

3. The energy-saving arc-shaped flow-guiding ventilation and drainage system for high-temperature pollution sources according to claim 1 is characterized in that: A connecting bracket (10) is provided on one side of the arc-shaped guide plate (8), a driving motor (13) is provided on the connecting bracket (10), a high-temperature resistant thin steel coil (12) is placed inside the connecting bracket (10), and the driving motor (13) drives the high-temperature resistant thin steel coil (12) to unfold.

4. The energy-saving arc-shaped flow-guiding ventilation and drainage system for high-temperature pollution sources according to claim 3 is characterized in that: The arc-shaped guide plate (8) further comprises two arc-shaped guide rails (9), which are respectively arranged at the upper and lower ends of the high-temperature resistant thin steel coil (12), and the guide rails are interlocked with the upper and lower ends of the high-temperature resistant thin steel coil (12).

5. The energy-saving arc-shaped flow-guiding ventilation and drainage system for high-temperature pollution sources according to claim 4 is characterized in that: The arc-shaped guide plate (8) further comprises a transmission mechanism (11), the transmission mechanism (11) being arranged inside the guide rail of the arc-shaped guide rail (9), and the transmission mechanism (11) being connected to a drive motor (13).

6. The energy-saving arc-shaped flow-guiding ventilation and drainage system for high-temperature pollution sources according to claim 1 is characterized in that: A dust removal cover (2) is provided at the channel entrance of the dust removal track (6), and the dust removal cover (2) is suspended directly above the high-temperature pollution source (1).

7. The energy-saving arc-shaped flow-guiding ventilation and drainage system for high-temperature pollution sources according to claim 6 is characterized in that: A dust collecting device (7) is provided at the channel outlet of the dust removal track (6).

8. A sewage discharge method for an energy-saving arc-shaped diversion ventilation sewage discharge system for high-temperature pollution sources, characterized in that: An energy-saving arc-shaped flow-guiding ventilation and sewage discharge system for high-temperature pollution sources according to any one of claims 1 to 7, wherein the sewage discharge method is as follows: a driving motor (13) controls a high-temperature resistant thin steel coil (12) to unfold to form an arc-shaped baffle (8); when a high-temperature pollution source (1) generates high-temperature particulate pollutants and a thermal jet (3), the high-temperature particulate pollutants and the thermal jet (3) are sucked into a dust removal duct (6) under the action of a high-speed fan (4) for efficient filtration treatment, and the gas is discharged after purification.

9. The sewage discharge method of the energy-saving arc-shaped flow-guiding ventilation sewage discharge system for high-temperature pollution sources according to claim 8 is characterized in that: When the high-temperature pollution source (1) releases high-temperature particulate pollutants and thermal jets (3), the lateral airflow is guided by the arc-shaped baffle plate (8) to change its flow direction. When the airflow on one side passes through, a negative pressure area is formed on the other side of the arc-shaped baffle plate (8). The negative pressure area generates a pressure difference, and the pressure difference provides lift for the high-temperature particulate pollutants and thermal jets (3).

10. A dust removal method for an arc-shaped flow guide dust removal system for increasing efficiency and energy saving of high-temperature pollution sources according to claim 9, characterized in that: The shape of the arc-shaped guide plate (8) needs to be standardized when in use. The shape formula of the arc-shaped guide plate (8) is selected as follows: in, , Y is the y-axis coordinate corresponding to the point on the arc curve of the arc guide plate (8), X is the x-axis coordinate corresponding to the point on the curve of the arc guide plate (8), the x-axis and the y-axis both take the center point of the high-temperature pollution source (1) as the origin, the direction of the x-axis is the direction of the straight line between the two ends of the arc guide plate (8), the y-axis is perpendicular to the x-axis and has the direction pointing to the arc guide plate (8) as the positive direction, the positive direction of the x-axis is perpendicular to the y-axis to the left, R is the radius of the high-temperature pollution source (1), and the unit of R is mm.

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