Modular mist eliminator with adjustable air ducts
By using a modular design and real-time adjustment of the guide vane angle, the fog-eliminating tower solves the problems of poor adaptability to changes in air volume and difficult maintenance, achieving stability of fog-eliminating effect and ease of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIYUAN DINGCHANG IND CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-23
AI Technical Summary
The existing fixed guide plates of the fog-eliminating tower cannot adapt to changes in air volume, resulting in unstable fog-eliminating effect, and the whole structure is not disassembled and difficult to maintain.
The modular design features vertically stacked defogging modules connected by flanges, each with an embedded annular sealing gasket and quick-release buckle. Combined with an airflow sensor and an electric regulating valve, it enables real-time adjustment of the baffle angle. Siphon pipes and anti-backflow ball valves are installed between the modules to ensure airtightness and prevent condensate backflow.
The defogging tower is detachable, which facilitates maintenance. The baffle plate can dynamically adapt to changes in air volume, reduce defogging fluctuations, reduce pressure loss, and prevent secondary pollution from condensate.
Smart Images

Figure CN224388362U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fog-eliminating tower technology, specifically relating to a modular fog-eliminating tower with adjustable air duct. Background Technology
[0002] Defogging towers, also known as mist removal towers or moisture treatment towers, are industrial equipment widely used in chemical, power, metallurgical, and environmental protection industries. They are mainly used to remove mist droplets, aerosols, and fine particulate matter from industrial waste gases to reduce environmental pollution and improve gas emission quality. Existing defogging towers have fixed guide plates that cannot adapt to changes in airflow, and the overall welded structure makes them difficult to disassemble and maintain. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a modular defogging tower with an adjustable air duct, thus solving the problems mentioned in the background art.
[0004] The purpose of this invention is achieved as follows: A modular defogging tower with adjustable air ducts includes a tower body, an air inlet section, and an air outlet section. The tower body is composed of at least two detachable defogging modules stacked longitudinally, connected to adjacent modules via flanges. An annular sealing gasket is embedded inside the flange, and quick-release clips and cable channels are provided on the outer edge of the flange. Each defogging module contains a rotating guide plate assembly. The air inlet section is equipped with an airflow sensor and an electric regulating valve. The electric regulating valve is linked to the control system of the guide plate assembly, and the control system dynamically adjusts the guide plate angle based on real-time airflow data. Multiple defogging modules are stacked longitudinally via flanges, with the sealing gaskets inside the flanges ensuring airtightness, allowing the entire defogging tower to be disassembled for easy maintenance. The airflow sensor monitors the airflow in real time, and the signal is transmitted to the control system, which in turn links the electric regulating valve to dynamically adjust the guide plate angle, enabling the guide plate to adapt to changes in airflow and reducing the defogging fluctuation range.
[0005] Furthermore, the guide plate assembly consists of 3-5 arc-shaped guide plates arranged radially, each rotating synchronously around a central axis with a rotation angle ranging from 0° to 90°. The radius of curvature of each guide plate is 0.4-0.6 times the inner diameter of the defogging module, and the plate surface is uniformly distributed with honeycomb-shaped through holes. The diameter of each through hole is 5-10 mm, and the total area of the through holes accounts for 30%-40% of the surface area of the guide plate. The honeycomb-shaped through holes disperse the airflow, reducing pressure loss and allowing the airflow to flow evenly, thus solving the problem of uneven airflow distribution and the tendency to generate eddies that increase pressure loss in traditional guide plates.
[0006] Furthermore, the flange connection surface is equipped with a tapered locating pin with a tolerance fit of H7 / g6. The quick-release buckle adopts a spring-locking structure with an unlocking stroke ≤5mm. The bottom of the defogging module has a V-shaped water collection trough, which is connected to adjacent modules via a siphon pipe. The siphon pipe of the lowest module is connected to the main drain pipe, with an inclination angle of 3°-5°. An anti-backflow ball valve is installed inside the siphon pipe. The ball valve is made of PTFE-coated stainless steel core with a density of 0.9-1.1 g / cm³ and an opening pressure threshold ≤50Pa. In use, condensate flows along the bottom of the V-shaped trough at an inclination angle ≥10° into the siphon pipe, which then flows by gravity to the main drain pipe at an inclination angle of 3°-5°. The anti-backflow ball valve prevents condensate from flowing back under high wind pressure, thus avoiding secondary pollution.
[0007] Furthermore, the outer wall of the tower is covered with flexible photovoltaic panels with a conversion efficiency of ≥22%, which power the control system and electric regulating valves via an MPPT controller. A cyclone separator is installed at the top of the air outlet section, with helical curved blades at an inclination angle of 20°-25° and a gap of ≤1mm between the blade edge and the inner wall of the tower. A stepper motor is connected to the central shaft, with a step angle of 1.8° and a torque output range of 2-5 N·m, and is equipped with an angle encoder for real-time position feedback.
[0008] Furthermore, the air intake section is equipped with temperature and humidity sensors and a PM2.5 sensor. The control system includes a low-temperature mode, a high-humidity mode, and a normal mode. In the low-temperature mode, the ambient temperature is ≤5°C, the guide vane angle is fixed at 45°, and the electric regulating valve opening is ≤50%. In the high-humidity mode, the relative humidity is ≥80%, the guide vane angle is dynamically adjustable within a range of 30°-60°, and the electric regulating valve opening is ≥70%.
[0009] The beneficial effects of this invention are as follows: Multiple anti-fogging modules are stacked vertically, and an airtight seal is embedded in the flange to ensure airtightness, making the entire anti-fogging tower detachable for easy maintenance. An airflow sensor monitors the incoming airflow in real time, transmitting the signal to the control system. This system then links an electric regulating valve to dynamically adjust the angle of the guide vane, allowing it to adapt to changes in airflow and reducing anti-fogging fluctuations. Honeycomb-shaped perforations disperse airflow, reducing pressure loss and ensuring uniform airflow, thus solving the problem of uneven airflow distribution and increased pressure loss caused by eddies in traditional guide vanes. The siphon pipe is tilted at 3°-5° to allow gravity-fed flow to the main drain pipe, and an anti-backflow ball valve prevents condensate from flowing back under high air pressure, thus avoiding secondary pollution. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Figure 2 This is a schematic diagram of the internal structure of the tower body of this utility model;
[0012] Figure 3 This is the utility model Figure 2 Enlarged view of A in the middle;
[0013] Figure 4 This is the utility model Figure 2 Enlarged view of B in the middle.
[0014] In the diagram: 1. Tower body, 2. Air inlet section, 3. Air outlet section, 4. Flange, 5. Quick-release clip, 6. Cable channel, 7. Air volume sensor, 8. Electric regulating valve, 9. Central shaft, 10. Guide plate, 11. Honeycomb through hole, 12. Water collection tank, 13. Siphon pipe, 14. Anti-backflow ball valve, 15. Photovoltaic panel, 16. Stepper motor. Detailed Implementation
[0015] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that all directional terms such as up, down, front, back, left, and right appearing in the present invention are not intended to limit the present invention, but are only used to more clearly explain and interpret the present invention. Example 1
[0016] like Figure 1-4 As shown, this embodiment discloses a modular defogging tower with adjustable air duct, comprising a tower body 1, an air inlet section 2, and an air outlet section 3. The tower body 1 is composed of at least two detachable defogging modules stacked longitudinally, with adjacent modules connected by flanges 4. An annular sealing gasket is embedded inside the flange 4, and quick-release clips 5 and cable channels 6 are provided on the outer edge of the flange 4. Each defogging module contains a set of rotating guide plates 10. The air inlet section 2 is equipped with an airflow sensor 7 and an electric regulating valve 8. The electric regulating valve 8 is linked to the control system of the guide plate 10 sets, and the control system dynamically adjusts the angle of the guide plates 10 according to real-time airflow data. Multiple defogging modules are stacked longitudinally via flanges 4, with the sealing gasket embedded in the flanges 4 ensuring airtightness, making the entire defogging tower detachable for easy maintenance. The airflow sensor 7 monitors the airflow in real time, and the signal is transmitted to the control system, which links the electric regulating valve 8 to dynamically adjust the angle of the guide plates 10, enabling the guide plates 10 to adapt to changes in airflow and reduce the defogging fluctuation range. Example 2
[0017] like Figure 1-4As shown, this embodiment discloses a modular defogging tower with adjustable air duct, comprising a tower body 1, an air inlet section 2, and an air outlet section 3. The tower body 1 is composed of at least two detachable defogging modules stacked longitudinally, with adjacent modules connected by flanges 4. An annular sealing gasket is embedded inside the flange 4, and quick-release clips 5 and cable channels 6 are provided on the outer edge of the flange 4. Each defogging module contains a set of rotating guide plates 10. The air inlet section 2 is equipped with an airflow sensor 7 and an electric regulating valve 8. The electric regulating valve 8 is linked to the control system of the guide plate 10 sets, and the control system dynamically adjusts the angle of the guide plates 10 according to real-time airflow data. Multiple defogging modules are stacked longitudinally via flanges 4, with the sealing gasket embedded in the flanges 4 ensuring airtightness, making the entire defogging tower detachable for easy maintenance. The airflow sensor 7 monitors the airflow in real time, and the signal is transmitted to the control system, which links the electric regulating valve 8 to dynamically adjust the angle of the guide plates 10, enabling the guide plates 10 to adapt to changes in airflow and reduce the defogging fluctuation range.
[0018] For better performance, the guide vanes 10 consist of 3-5 radially arranged arc-shaped guide vanes 10, each rotating synchronously around a central axis 9 with a rotation angle ranging from 0° to 90°. The radius of curvature of each guide vane 10 is 0.4-0.6 times the inner diameter of the defogging module. Honeycomb-shaped through-holes 11 are evenly distributed on the surface of the vane, with a hole diameter of 5-10 mm. The total area of the through-holes accounts for 30%-40% of the surface area of the guide vane 10. The honeycomb-shaped through-holes 11 disperse the airflow, reducing pressure loss and allowing for uniform airflow, thus solving the problem of uneven airflow distribution and increased pressure loss caused by eddies in traditional guide vanes 10.
[0019] For better performance, the flange 4 has a tapered locating pin on its connecting surface with a tolerance of H7 / g6. The quick-release buckle 5 uses a spring-locking structure with an unlocking stroke of ≤5mm. The bottom of the defogging module has a V-shaped water collection trough 12, which connects to adjacent modules via a siphon pipe 13. The siphon pipe 13 of the lowest module connects to the main drain pipe, with an inclination angle of 3°-5°. The siphon pipe 13 contains an anti-backflow ball valve 14, made of PTFE-coated stainless steel core with a density of 0.9-1.1g / cm³ and an opening pressure threshold of ≤50Pa. In use, condensate flows along the bottom of the V-shaped trough at an inclination angle ≥10° into the siphon pipe 13, which then flows by gravity to the main drain pipe at a 3°-5° inclination. The anti-backflow ball valve 14 prevents condensate from flowing back under high air pressure, thus avoiding secondary pollution.
[0020] For better performance, flexible photovoltaic panels 15 are installed on the outer wall of the tower body 1. The photovoltaic panels 15 have a conversion efficiency of ≥22%, and the control system and electric regulating valve 8 are powered by an MPPT controller. A cyclone separator is installed at the top of the air outlet section 3. The blades of the cyclone separator are helical curved surfaces with an inclination angle of 20°-25° and a gap of ≤1mm between the blade edge and the inner wall of the tower body 1. A stepper motor 16 is connected to the central shaft 9. The stepper motor 16 has a step angle of 1.8°, a torque output range of 2-5 N·m, and is equipped with an angle encoder for real-time position feedback.
[0021] For better performance, the air inlet section 2 is equipped with temperature and humidity sensors and a PM2.5 sensor. The control system includes a low-temperature mode, a high-humidity mode, and a normal mode. In low-temperature mode, the ambient temperature is ≤5°C, the angle of the guide vane 10 is fixed at 45°, and the opening of the electric regulating valve 8 is ≤50%. In high-humidity mode, the relative humidity is ≥80%, the angle of the guide vane 10 is dynamically adjustable within a range of 30°-60°, and the opening of the electric regulating valve 8 is ≥70%.
[0022] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A modular defogging tower with adjustable air duct, comprising a tower body, an air inlet section, and an air outlet section, characterized in that: The tower body is composed of at least two detachable fog-eliminating modules stacked longitudinally. Adjacent modules are connected by flanges. An annular sealing gasket is embedded on the inner side of the flange, and quick-release buckles and cable channels are provided on the outer edge of the flange. The defogging module is equipped with a rotary guide plate assembly, and the air inlet section is equipped with an air volume sensor and an electric regulating valve. The electric regulating valve is linked to the control system signal of the guide plate assembly.
2. The modular defogging tower with adjustable air duct according to claim 1, characterized in that: The guide plate assembly consists of 3-5 arc-shaped guide plates arranged radially, with each guide plate rotating synchronously via a central axis. The surface of each guide plate is evenly distributed with honeycomb-shaped through holes.
3. The modular defogging tower with adjustable air duct according to claim 1, characterized in that: The flange connection surface is provided with a tapered locating pin.
4. The modular defogging tower with adjustable air duct according to claim 1, characterized in that: The bottom of the defogging module is equipped with a V-shaped water collection tank, which is connected to the adjacent module through a siphon pipe.
5. The modular defogging tower with adjustable air duct according to claim 4, characterized in that: The siphon tube is equipped with an anti-backflow ball valve, which is made of polytetrafluoroethylene-coated stainless steel core.
6. The modular defogging tower with adjustable air duct according to claim 1, characterized in that: The outer wall of the tower is equipped with photovoltaic panels, which power the control system and electric regulating valve through an MPPT controller; a cyclone separator is fixedly installed at the top of the air outlet section, and the blades of the cyclone separator are helical curved surfaces.
7. The modular defogging tower with adjustable air duct according to claim 2, characterized in that: The central shaft is connected to a stepper motor.
8. The modular defogging tower with adjustable air duct according to claim 1, characterized in that: The air intake section is equipped with a temperature and humidity sensor and a PM2.5 sensor. The control system includes a low temperature mode, a high humidity mode, and a normal mode.