A synergistic energy-saving arc-shaped flow guide ventilation and pollution discharge system for high-temperature pollution sources and a pollution discharge method thereof

Abstract

The present application 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 high-temperature pollution sources and a pollution discharge method thereof. The system mainly creates a local negative pressure area at the inlet of a dust hood by introducing a movable arc-shaped baffle through a driving motor and utilizing the natural guiding property of airflow; the upward force is generated in the negative pressure area; when the high-temperature pollution source generates high-temperature particulate pollutants and thermal jets, the high-temperature particulate pollutants and thermal jets are sucked into the dust removal pipeline under the action of the upward force and the suction force of the high-speed fan; the pollutants are efficiently filtered by a dust removal and filtration device in the dust removal pipeline; the purified gas is discharged; and the remaining un-purified particulate matters are collected in a dust collection device in the subsequent treatment process. In the whole process, the flexible adjustment of the baffle and the combination of the high-efficiency dust removal and filtration device ensure the efficient energy saving and stable operation of the ventilation and pollution discharge system.

Description

Technical Field

[0001] This invention belongs to the field of ventilation and dust removal technology, specifically relating to an efficient and energy-saving arc-shaped flow ventilation and sewage discharge system for high-temperature pollution sources and its sewage discharge method. Background Technology

[0002] In modern industrial manufacturing, especially in processes involving high-temperature operations and material handling, dust pollution is a significant problem. During these processes, high-temperature heat sources (such as furnaces and heat treatment equipment) continuously generate hot jets, while the high-speed movement of materials induces airflow, creating 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 typically rectangular and placed near the dust source to guide and control the flow of dust-laden air. They utilize the negative pressure effect naturally formed at the opening to draw the dust-laden airflow into the hood. Inside the hood, dust particles in the airflow are subjected to a combination of physical forces, including gravity, inertia, and diffusion, gradually settling inside the hood or continuing with the airflow to subsequent dust collection equipment, such as bag filters or electrostatic precipitators, for more thorough purification. While this method can capture dust to some extent, its design is often based on a simple airflow interception principle, neglecting the complexity and dynamics of airflow movement. Especially in applications with high-mounted hoods, due to the distance from the heat source and susceptibility to interference from lateral airflow, the hot jet is prone to deviation during its ascent, leading to dust leakage and significantly reducing dust removal efficiency. Furthermore, to compensate for this deficiency, traditional dust hoods often require increased exhaust volume, which not only increases energy consumption but may also result in excessive fan noise, impacting the production environment. Summary of the Invention

[0003] This invention provides an efficient and energy-saving arc-shaped flow ventilation and sewage discharge system and its sewage discharge method for high-temperature pollution sources, in order to solve the technical problems existing in the prior art, such as dust accumulation and dust leakage caused by the easy deviation of the hot jet generated by the high-temperature pollution source during the rising process, which reduces the ventilation and sewage discharge effect.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An efficient and energy-saving arc-shaped airflow ventilation and sewage discharge system for high-temperature pollution sources is disclosed. The system operates on the high-temperature pollution source, which has a dust removal duct directly above it. The high-temperature pollution source generates a hot jet. The dust removal duct contains a high-speed fan and a dust removal filter. An arc-shaped baffle is installed between the dust removal duct and the high-temperature pollution source. The arc-shaped baffle is installed on the side of the transverse airflow from the high-temperature pollution source. The arc-shaped baffle includes a high-temperature resistant thin steel coil, which is connected to a drive motor. The drive motor drives the high-temperature resistant thin steel coil to unfold or retract.

[0006] A connecting bracket is provided on one side of the arc-shaped baffle. When dust removal is not required, the high-temperature resistant thin steel coil is placed inside the connecting bracket.

[0007] The drive motor is mounted on the connecting bracket.

[0008] The arc-shaped baffle also includes two arc-shaped guide rails, which are respectively set at the upper and lower ends of the high-temperature resistant thin steel coil, and the guide rails are interlocked with the upper and lower ends of the high-temperature resistant thin steel coil.

[0009] The arc-shaped baffle also includes a transmission mechanism, which is located inside the arc-shaped guide rail and is connected to the drive motor.

[0010] The dust removal duct is equipped with a dust removal hood at its inlet, which is suspended directly above the high-temperature pollution source.

[0011] A dust collection device is installed at the outlet of the dust removal pipeline.

[0012] A dust removal method for an energy-efficient arc-shaped guide ventilation and sewage system targeting high-temperature pollution sources includes the following steps: A drive motor controls a transmission mechanism to move along an arc-shaped guide rail from one end to the other. 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 this time, the high-temperature resistant thin steel coil and the upper and lower arc-shaped guide rails form an arc-shaped baffle. When the high-temperature pollution source generates high-temperature particulate pollutants and hot jets, the high-temperature particulate pollutants and hot jets are drawn into the dust removal pipe under the action of a high-speed fan and transported to a dust removal and filtration device for high-efficiency filtration treatment. The purified gas is then discharged.

[0013] When a high-temperature pollution source releases high-temperature particulate pollutants and hot jets, the lateral airflow is guided and its direction is changed by the arc-shaped baffle. As the airflow passes through one side, a negative pressure area is formed on the other side of the arc-shaped baffle. The negative pressure area generates a pressure difference, which further provides lift for the high-temperature particulate pollutants and hot jets.

[0014] When using curved baffles, the design of their shape needs to be standardized. The formula for selecting the shape of a curved baffle is as follows:

[0015]

[0016] in, Y is the y-axis coordinate of the point on the arc curve of the arc baffle, and X is the x-axis coordinate of the point on the curve of the arc baffle. Both the x-axis and y-axis take the center point of the high-temperature pollution source as the origin. The direction of the x-axis is the straight line between the two ends of the arc baffle. The y-axis is perpendicular to the x-axis and the positive direction is the direction pointing to the arc baffle. The positive direction of the x-axis is to the left of the perpendicular y-axis. R is the radius of the high-temperature pollution source. The unit of R is mm.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention discloses an energy-saving arc-shaped airflow guiding ventilation and sewage discharge system and its sewage discharge method for high-temperature pollution sources. An arc-shaped baffle is installed on the side of the transverse airflow near the high-temperature pollution source. By introducing a movable arc-shaped baffle, a local negative pressure area is created at the dust collector hood inlet using the natural guidance of airflow. This guides and accelerates the accumulation of dust particles in the hot jet and induced airflow into the dust collector hood, greatly improving dust capture efficiency. Compared to traditional dust collector hoods, it more effectively reduces dust diffusion and escape in the air, improving the air quality of the working environment. The baffle assembly in this invention consists of upper and lower arc-shaped guide rails, connecting brackets, and high-temperature resistant thin steel coils. This modular design gives the dust collector hood extremely high flexibility and adjustability. Users can easily adjust the angle and position of the baffle according to the actual process requirements, the specific shape and location of the high-temperature pollution source, ensuring that the dust collector hood always operates in an optimized state, achieving the most effective dust collection. This adaptability not only improves dust removal efficiency but also reduces maintenance costs and time.

[0019] Furthermore, this invention improves dust capture efficiency by optimizing the airflow path, thereby reducing the dust removal system's reliance on large air volumes and high velocities. This means that, while achieving the same dust removal effect, the energy consumption required by the fan is significantly reduced, helping companies lower operating costs. Simultaneously, the reduced fan operating load directly reduces noise pollution, creating a more comfortable working environment for employees and aligning with modern industry's pursuit of green and sustainable development. The application of high-temperature resistant thin steel coils allows the baffle plate to withstand high-temperature environments, reducing material deformation or damage caused by high temperatures, thus extending the service life of the dust collector hood and its accessories. In addition, efficient dust capture reduces dust accumulation inside the equipment, further reducing equipment wear and failure rates, and improving the overall system's stability and reliability. Attached Figure Description

[0020] Figure 1 : A schematic diagram of an energy-saving arc-shaped airflow ventilation and sewage discharge system for high-temperature pollution sources;

[0021] Figure 2 Schematic diagram of an arc-shaped baffle;

[0022] Figure 3 : Indoor airflow diagram of an arc-shaped airflow ventilation and sewage system;

[0023] Figure 4 Velocity contour plot at the z-axis section when the transverse wind speed is 1 m / s in an arc-shaped airflow guiding ventilation and sewage system;

[0024] Figure 5Pressure cloud diagram at the z-axis section of the arc-shaped flow-guiding ventilation and sewage system;

[0025] Figure 6 : Single-coupling diagram of 0.5-50 mm pollutant particles from high-temperature pollution sources in dust removal systems;

[0026] Figure 7 : Indoor airflow diagram of the dust removal hood system above the high-temperature pollution source;

[0027] Figure 8 Comparison of temperature distribution above high-temperature pollution sources in dust collection hood systems;

[0028] Figure 9 Velocity contour plot at the z-axis section above a high-temperature pollution source under the same wind speed;

[0029] Figure 10 Pressure cloud map at the z-axis section above a high-temperature pollution source under the same wind speed;

[0030] Figure 11 : Single-coupling diagram of 0.5-50 mm pollutant particles from high-temperature pollution sources in a ventilation and sewage system without baffles.

[0031] Labels: 1. High-temperature pollution source; 2. Dust hood; 3. Hot jet; 4. High-speed fan; 5. Dust removal and filtration device; 6. Dust removal pipeline; 7. Dust collection device; 8. Arc-shaped baffle; 9. Arc-shaped guide rail; 10. Connecting bracket; 11. Transmission mechanism; 12. High-temperature resistant thin steel coil; 13. Drive motor. Detailed Implementation

[0032] To further understand the content of this invention, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention.

[0033] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0034] See Figure 1 and Figure 2A dust collector hood 2 is suspended above the high-temperature pollution source 1. The dust collector hood 2 is a truncated pyramid structure with trapezoidal sides on all four sides. The side of the dust collector hood 2 facing the high-temperature pollution source 1 has a large diameter opening, while the small diameter opening connects to the inlet of the dust collection pipe 6. A dust collection device 7 is connected to the outlet of the dust collection pipe 6. The dust collection pipe 6 is an L-shaped pipe, and a high-speed fan 4 and a dust filter 5 are also installed inside the dust collection pipe 6. The high-speed fan 4 is located near the dust collector hood 2, and the dust filter 5 is located near the turning point inside the dust collection pipe 6. A movable arc-shaped baffle 8 is installed on one side above the high-temperature pollution source 1. The arc-shaped baffle 8 is a semi-arc baffle, and a connecting bracket 10 is installed on one side of the arc-shaped baffle 8. When not in use, the arc-shaped baffle 8 retracts into the connecting bracket 10. Figure 1 and Figure 2 When high-temperature pollution source 1 generates pollutants and dust removal is required, the arc-shaped baffle 8 is in its unfolded state. A drive motor 13 is installed at each of the upper and lower ends of the connecting bracket 10. The entire surface of the arc-shaped baffle 8 is composed of high-temperature resistant thin steel coils 12. Arc-shaped guide rails 9 are provided at both the upper and lower ends of the high-temperature resistant thin steel coils 12. A transmission mechanism 11 is provided inside the arc-shaped guide rails 9. The transmission mechanism 11 is engaged with the arc-shaped guide rails 9 and can slide along the arc-shaped guide rails 9. The transmission mechanism 11 is connected to the high-temperature resistant thin steel coils 12 and drives the high-temperature resistant thin steel coils 12 to slide along the arc-shaped guide rails 9.

[0035] Example 1

[0036] This embodiment provides an efficient and energy-saving arc-shaped flow-guided ventilation and sewage discharge system for high-temperature pollution sources, and its sewage discharge method is as follows:

[0037] First, a numerical calculation model with room dimensions of 4000(x)×4000(y)×4000(z) (mm3) is established based on the actual situation. The dimensions of the pollutant storage tank are: (diameter 600mm, height 800mm). The dimensions of the dust hood 2 are: the upper part is 600(x)×600(y)×850(z)mm, and the lower part is a trapezoidal column with dimensions of 600(x)×600(y) (mm) at the top and 1200(x)×1200(y) (mm) at the bottom, and a height of 400mm. In this implementation, a cylindrical pollution source is used. The center point of the high-temperature pollution source 1 is taken as the origin, and the xyz axis coordinates are established. The direction of the x-axis is the straight line between the two ends of the arc-shaped baffle 8, and the y-axis is perpendicular to the x-axis and the positive direction is the direction pointing to the arc-shaped baffle (8). The positive direction of the x-axis is perpendicular to the left of the y-axis, and the positive direction of the z-axis is perpendicular to both the x-axis and y-axis and is vertically upward; the formula for the curvature of the arc-shaped baffle 8 is: Where Y is the y-axis coordinate of the point on the arc curve of the arc-shaped baffle (8), and X is the x-axis coordinate of the point on the curve of the arc-shaped baffle (8). R is in mm; the height of the arc-shaped baffle 8 is H=1950 (mm), the distance between the maximum arc of the arc-shaped baffle 8 and the high-temperature pollution source 1 is L=600 (mm), the air is supplied from the right wall of the room, the horizontal air supply temperature is 292K, and the air supply velocity is 1m / s; the air flows freely out from the left wall of the room, the high-temperature pollution source 1 is simplified to a velocity inlet, the air supply temperature is 360K, and the air supply velocity is 0.5m / s. At the same time, the dpm discrete term model is added, and the rest of the walls are insulated.

[0038] During the preparation phase before the ventilation and sewage system is started, the dust collector hood 2 is suspended above the high-temperature pollution source 1 on the operating table. The movable arc-shaped baffle 8 on the right side above the high-temperature pollution source 1 is completely retracted by the high-temperature resistant thin steel coil 12 within the connecting space 10 on one side of the arc-shaped baffle 8, and is in a retracted state. The arc-shaped guide rails 9 at both ends of the high-temperature resistant thin steel coil 12 are empty. As production begins, according to the specific conditions of the high-temperature pollution source 1, the thin steel coil is adjusted by the electric drive transmission mechanism 11 driven by the drive motor 13. The transmission mechanism 11 moves outward along the arc-shaped guide rail 9, and the transmission mechanism 11 drives the high-temperature resistant thin steel coil 12 to be slowly pulled out to the predetermined length and fixed by the slots to form the arc-shaped baffle 8 with the optimal arc shape.

[0039] When high-temperature pollution source 1 releases high-temperature particulate pollutants and thermal jet 3, the transverse airflow is guided and its direction is changed by the arc-shaped baffle 8. The transverse airflow on the right side of the room passes through, and its flow path changes significantly as it passes through the arc-shaped baffle 8. Figure 3 As shown, due to the unique arc-shaped structure of the arc-shaped baffle 8, the airflow can be cleverly guided around its surface, thereby forming a negative pressure area on the left side of the arc-shaped baffle 8, in the 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 effect of the hot airflow and the suction effect of the high-speed fan 4, causes the pollutants to move into the dust collection hood 2 above.

[0040] like Figure 3 As shown in the diagram, the indoor airflow of the arc-shaped airflow ventilation and sewage system clearly shows that the horizontal airflow originating from the right side of the room undergoes a significant change in its flow path when passing through the arc-shaped baffle 8. Due to the unique arc-shaped structure of the arc-shaped baffle 8, the airflow can be cleverly guided around its surface, thereby inducing a strong upward airflow in the key area on the left side of the arc-shaped baffle 8, adjacent to the high-temperature pollution source 1.

[0041] like Figure 4As shown in the diagram, the velocity cloud at the z-axis section of the arc-shaped airflow ventilation and sewage exhaust system at a lateral wind speed of 1 m / s shows that after adding the baffle plate, the airflow from the right side with an initial wind speed of 1 m / s rapidly decreases to about 0.4 m / s after passing through the arc-shaped baffle plate 8, effectively decelerating and adjusting the direction of the airflow. Particularly noteworthy is that, due to the complex interaction of the airflow, two significant vortex structures—one large and one small—are formed on the left side of the arc-shaped baffle plate 8. These two vortices work together to effectively entrain and guide the pollutant-laden airflow above the high-temperature pollution source 1 upwards until it enters the exhaust hood. Subsequently, it is completely removed from the room by the high-efficiency dust removal and filtration device 5, achieving effective isolation and removal of pollutants. This design not only optimizes the indoor airflow organization but also significantly improves air purification efficiency and indoor environmental quality.

[0042] like Figure 5 As shown, the pressure distribution cloud map of the arc-shaped flow-guiding ventilation and sewage exhaust system in this embodiment is presented on the z-axis section. This figure shows in detail the characteristics of the pressure field within the system, particularly highlighting that the pressure level on both sides of the exhaust hood, especially on the side closer to the lateral airflow, is significantly higher than the area below the exhaust hood, forming a clear pressure gradient difference. Further observation reveals that the pressure gradient gradually decreases from strong to weak between the high-temperature pollution source 1 and the opening of the dust collection hood 2. This characteristic is particularly pronounced on the left side of the arc-shaped baffle 8, where a clear negative pressure area is formed. It is the existence of this negative pressure area that generates a strong traction force on pollutant particles, causing them to be rapidly and efficiently drawn into the exhaust hood and subsequently thoroughly removed from the room through the ventilation and sewage exhaust system. This phenomenon strongly demonstrates the superior efficiency and advantages of the arc-shaped flow-guiding ventilation and sewage exhaust system in negative pressure dust removal.

[0043] Subsequently, hot, polluted gas and particulate matter are drawn into the dust collection hood 2, then enter the dust collection duct 6 and are further transported to the dust collection and filtration device 5 for high-efficiency filtration. The purified gas is then discharged from the working area. The remaining unpurified particulate matter is trapped and collected in the dust collection device 7 during subsequent processing. The collected particulate matter can then be reused. Throughout the process, the flexible adjustment of the arc-shaped baffle 8 combined with the high-efficiency dust collection and filtration device ensures the system's high efficiency, energy saving, and stable operation.

[0044] like Figure 6 As shown in the figure, Figure a represents 0.5. One-way coupling diagram; Figure b is 1 One-way coupling diagram; Figure c is 10 One-way coupling diagram; diagram d is 50. One-way coupling diagram; Figure e is 0.5 -50 Single-term coupling diagram; ventilation and sewage system for 0.5 -50 A schematic diagram illustrating the unidirectional coupling effect of pollutant particles within a certain size range. The diagram clearly shows that, under the interference of crosswinds, particles with a size between 0.5 mm exhibit [positive coupling effects]. -10 More than 90% of the pollutant particles are captured by the high-efficiency dust collection hood and then safely discharged outside the room through a purification filtration mechanism. For larger particle sizes (10... -50 Despite their relatively heavy weight, the pollutant particles, including those released from high-temperature pollution sources, are effectively removed thanks to the airflow generated by the carefully designed negative pressure effect. Overall, this energy-saving arc-shaped dust collection system for high-temperature pollution sources effectively removes 0.5% of the pollutant particles. Up to 50 It exhibits excellent capture and treatment capabilities for pollutant particles across the entire particle size range, with an overall capture efficiency exceeding 85%. Its remarkable dust removal effect provides a solid guarantee for creating a clean and healthy indoor environment.

[0045] Example 2

[0046] This embodiment retains the same main configuration as the embodiment, except that the arc-shaped baffle 8 is removed. A comparative test was conducted on the dust removal effect of the dust removal hood above the high-temperature pollution source and the speed, pressure and temperature distribution in its working area, compared with embodiment 1.

[0047] With the supply air velocity set at 1 m / s, the system exhibits significant differences under the same exhaust and supply air velocity settings due to the absence of the curved baffle 8. Specifically, the wind speed above the high-temperature pollution source 1 increases significantly, and the negative pressure effect originally generated by the curved baffle 8 disappears completely. This change directly affects the flow characteristics of the heat jet 3 generated by the high-temperature pollution source 1. The intervention of lateral wind causes particulate pollutants to no longer be confined to their original path, but to deflect significantly to the left side of the room. Consequently, the hood of the originally designed dust collection hood 2 cannot effectively capture and collect all pollutant particles, ultimately resulting in a sharp decline in dust removal efficiency.

[0048] like Figure 7 As shown in the diagram, the airflow pattern of the indoor air receiving dust hood system above the heat source is clearly shown. The diagram clearly shows that the flow pattern of the horizontal airflow from the right side of the room is not significantly disturbed or guided when it passes through the lower area of ​​the dust hood 2. As a result, the original negative pressure capture area below the dust hood 2 no longer exists, 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.

[0049] like Figure 8As shown in the figure, the temperature distribution above the high-temperature pollution source in the dust removal hood system is compared. Figure a shows the ventilation and sewage system without the arc-shaped baffle; Figure b shows the system with the arc-shaped baffle. Through this comparison, it can be clearly seen that in the ventilation and sewage system without the arc-shaped baffle 8, the temperature distribution above the high-temperature pollution source is significantly limited by the interference of the lateral airflow. This results in the heat flow being confined 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 rise to the bottom of the dust removal hood. This limits the smooth discharge of pollutant particles due to the lack of necessary lift.

[0050] In contrast, the energy-saving system using the arc-shaped baffle 8 exhibits a clear advantage: the high-temperature gas generated by the high-temperature pollution source 1 is cleverly guided by the arc-shaped baffle 8, forming an orderly entrainment and upward flow along the left side of the baffle 8, directly guiding it into the interior of the dust collector hood 2. This process not only significantly enhances the lift effect of the airflow, greatly promoting the efficient separation and emission of pollutant particles and shortening the dust removal cycle, but also reduces the exhaust volume and velocity requirements of the dust collector hood 2 by optimizing the airflow path, achieving the dual goals of energy saving and emission reduction as well as low-noise operation. This demonstrates the system's superior performance in improving dust removal efficiency and reducing energy consumption.

[0051] like Figure 9 As shown in the figure, the velocity cloud map at the z-axis section above the high-temperature pollution source 1 under the same wind speed is 1 m / s. It can be seen from the figure that the wind speed between the high-temperature pollution source 1 and the dust removal hood 2 is stably maintained between 1-1.5 m / s. It is mainly affected by the transverse wind, which blows directly across the surface of the high-temperature pollution source 1, causing the pollution particles to be unable to rise with the airflow into the dust removal hood 2.

[0052] like Figure 10 As shown in the figure, the pressure cloud map at the z-axis section above the high-temperature pollution source 1 under the same wind speed shows that the pressure in the area above the high-temperature pollution source 1 mainly remains within 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 expected in traditional dust removal mechanisms. Only near the dust hood 2, due to the direct intervention of the blowing and suction action of the high-speed fan 4, a small negative pressure area is formed locally. However, the limitation and non-uniformity of this area directly lead to a significant weakening of the overall negative pressure effect, which in turn has an adverse impact on the dust removal efficiency, causing the dust removal effect of the system to fail to reach the expected level under the optimal design.

[0053] like Figure 11 As shown, the high-temperature pollution source in the ventilation and sewage system without baffles is 0.5. -50 One-way coupling diagram of pollutant particles, where Figure a represents 0.5. One-way coupling diagram; Figure b is 1 One-way coupling diagram; Figure c is 10 One-way coupling diagram; diagram d is 50. One-way coupling diagram; Figure e is 0.5 -50 One-way coupling diagram; the diagram clearly shows that, under significant crosswind interference, maintaining the same exhaust volume and velocity as in Example 1, this dust collector hood 2 is effective for exhaust volumes from 0.5 to 50... Pollutant particles within the specified size range exhibited a relatively weak ability to be captured and expelled.

[0054] To achieve a dust removal effect comparable to Example 1, the system parameters must be adjusted. Specifically, the exhaust volume needs to be significantly increased, to at least 5.3 m³ / h. 3 / s, and at the same time increase the inlet air velocity, the air velocity should not be less than 14.7m / s. In addition, the opening size of the dust collector hood 2 needs to be enlarged to a size of more than 2.8×2.8m.

[0055] In summary, under the same air supply conditions, the energy-efficient arc-shaped flow-guided ventilation and sewage discharge system for high-temperature pollution sources in Example 1 demonstrates its unique advantages. Specifically, when airflow passes through the arc-shaped baffle 8, its airflow velocity distribution exhibits significant differences: the airflow velocity in the area of ​​the arc-shaped baffle 8 decreases significantly, while the velocity increases on its left side. This design promotes the vertical upward movement of pollutant particles, and compared to the traditional dust collection hood 2 above the heat source, its velocity distribution pattern is more conducive to the efficient discharge of pollutant particles. Furthermore, under the combined effect of wind pressure and thermal pressure, a significant negative pressure zone is naturally formed on the left side of the arc-shaped baffle 8. This negative pressure effect greatly enhances the attractiveness of the dust collection area compared to the traditional ventilation and sewage discharge system, thus achieving a more superior dust removal effect. By intuitively comparing the movement trajectory of pollutant particles in the two systems, the superior dust removal performance of the energy-efficient arc-shaped flow-guided ventilation and sewage discharge system for high-temperature pollution sources is clearly evident. Of particular note is that, to achieve ventilation and sewage discharge effects comparable to traditional ventilation and sewage discharge systems, the energy-efficient arc-shaped flow ventilation and sewage discharge system for high-temperature pollution sources requires only a lower exhaust volume (reduced by up to 67.4%), a slower exhaust velocity (reduced by up to 91.8%), and a significantly smaller hood size (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, while significantly improving sewage discharge efficiency. Therefore, the energy-efficient arc-shaped flow ventilation and sewage discharge system for high-temperature pollution sources, with its superior performance parameters (see Table 1), has brought significant improvements to the field of industrial dust removal. A comparison of its specific ventilation and sewage discharge parameters is shown in Table 1.

[0056] Table 1

[0057]

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. An energy-saving arc-shaped airflow ventilation and sewage discharge system for high-temperature pollution sources, characterized in that, The system includes a high-temperature pollution source (1), a dust removal pipe (6) is installed 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 installed inside the dust removal pipe (6), and an arc-shaped baffle (8) is installed between the dust removal pipe (6) and the high-temperature pollution source (1). The arc-shaped baffle (8) is installed on the side of the transverse airflow of the high-temperature pollution source (1). The arc-shaped baffle (8) includes a high-temperature resistant thin steel coil (12), which is connected to a drive motor (13). The drive motor (13) drives the high-temperature resistant thin steel coil (12) to unfold or retract. The arc-shaped baffle (8) needs to be designed according to its shape when in use. The shape formula of the arc-shaped baffle (8) is selected as follows: in, Y is the y-axis coordinate of the point on the arc curve of the arc baffle (8), X is the x-axis coordinate of the point on the curve of the arc baffle (8), both the x-axis and y-axis take the center point of the high temperature pollution source (1) as the origin, the direction of the x-axis is the straight line between the two ends of the arc baffle (8), the y-axis is perpendicular to the x-axis and the positive direction is the direction pointing to the arc baffle (8), the positive direction of the x-axis is the left side perpendicular to the y-axis, R is the radius of the high temperature pollution source (1), and the unit of R is mm.

2. The energy-saving arc-shaped flow-guiding ventilation and sewage discharge system for high-temperature pollution sources according to claim 1, characterized in that, The dust removal pipe (6) is also equipped with a dust removal filter device (5).

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

4. The energy-saving arc-shaped flow-guiding ventilation and sewage discharge system for high-temperature pollution sources according to claim 3, characterized in that, The arc-shaped baffle (8) also includes two arc-shaped guide rails (9), which are respectively set 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 sewage discharge system for high-temperature pollution sources according to claim 4, characterized in that, The arc-shaped baffle (8) also includes a transmission mechanism (11), which is located inside the guide rail of the arc-shaped guide rail (9) and is connected to the drive motor (13).

6. The energy-saving arc-shaped flow-guiding ventilation and sewage discharge system for high-temperature pollution sources according to claim 1, characterized in that, The dust removal duct (6) is equipped with a dust removal hood (2) at its inlet, which is suspended directly above the high-temperature pollution source (1).

7. The energy-saving arc-shaped flow-guiding ventilation and sewage discharge system for high-temperature pollution sources according to claim 6, characterized in that, A dust collection device (7) is installed at the outlet of the dust removal duct (6).

8. A sewage discharge method for an enhanced energy-saving arc-shaped flow ventilation and sewage discharge system targeting high-temperature pollution sources, characterized in that, According to any one of claims 1 to 7, an energy-saving arc-shaped flow-guiding ventilation and sewage discharge system for high-temperature pollution sources is provided. The sewage discharge method is as follows: the drive motor (13) controls the high-temperature resistant thin steel coil (12) to unfold and form an arc-shaped baffle (8); when the high-temperature pollution source (1) generates high-temperature particulate pollutants and hot jets (3), the high-temperature particulate pollutants and hot jets (3) are drawn into the dust removal pipe (6) for high-efficiency filtration under the action of the high-speed fan (4), and the gas is discharged after purification.

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

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