High and low temperature gas baffling air mixing device
By adopting a baffle structure and uniform air hole design in the high and low temperature gas mixing device, the problems of device compactness and poor mixing effect are solved, and efficient and stable gas mixing and reduced floor space are achieved.
Patent Information
- Application Number
- CN202422623438.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The existing high and low temperature gas mixing device has poor compactness, is inconvenient to repair and maintain, has poor mixing effect, and occupies a large area.
A baffle structure with the high-temperature air inlet and the low-temperature air inlet intersecting their axes is adopted, combined with the design of uniform air holes and insulation layer to enhance the gas mixing effect. The air intake control and device stability are ensured by adjusting the valve plate and support frame.
The uniformity and efficiency of gas mixing are improved, the device footprint is reduced, the gas residence time is prolonged, and the structural strength and operational stability of the device are enhanced.
Smart Images
Figure CN223361132U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of air treatment equipment, and in particular to a high and low temperature gas deflection and mixing air device. Background Art
[0002] In industrial production processes, to fully utilize the high-temperature gas generated by regenerative thermal oxidizer (RTO) systems for energy recovery, it is often necessary to mix the high-temperature gas with the low-temperature gas. This high-temperature and low-temperature gas mixing technology not only improves energy utilization, but also reduces energy consumption and environmental pollution.
[0003] Currently, there are few stable structures on the market that use the high-temperature gas (about 850~900 degrees) generated by the regenerative thermal oxidizer (RTO) system for mixed air heating.
[0004] Most of the mixed air structures on the market adopt a DC structure. Since the air inlet and outlet are located on both sides, the compactness of the structure is greatly limited. It also lacks convenience in repair and maintenance, so it needs to be improved. Utility Model Content
[0005] In order to reduce the floor space occupied by a high and low temperature gas mixing device, the present application provides a high and low temperature gas deflection mixing device.
[0006] The present application provides a high and low temperature gas baffle mixing device that adopts the following technical solution:
[0007] A high-low temperature gas deflection and air mixing device includes a casing, an air mixing cavity is formed inside the casing, a high-temperature air inlet is provided on the top of the casing, and a low-temperature air inlet and an air mixing outlet are provided on the side wall of the casing. The low-temperature air inlet is located above the air mixing outlet, and the axis of the high-temperature air inlet intersects with the axis of the low-temperature air inlet to form a high-low temperature gas deflection structure.
[0008] By adopting the above technical solution, the deflection structure formed by the intersection of the axes of the high-temperature air inlet and the low-temperature air inlet enables the gas to be effectively mixed when entering the air mixing cavity, thereby enhancing the air mixing effect; the high and low temperature gas deflection air mixing device can significantly reduce the footprint of the device, extend the residence time of the gas in the air mixing cavity, and thus improve the uniformity and efficiency of the air mixing.
[0009] Optionally, a uniform wind bottom plate and several uniform wind side plates are provided in the mixed air cavity, several of the uniform wind side plates are connected to the inner wall of the casing at the high-temperature air inlet, several of the uniform wind side plates are enclosed to form a uniform wind area, several of the uniform wind side plates are provided with several uniform wind holes, and the uniform wind bottom plate is connected to one end of several uniform wind side plates away from the high-temperature air inlet to close the uniform wind area.
[0010] By adopting the above technical solution, the high-temperature airflow enters through the high-temperature air inlet and enters the uniform wind area, and is finally discharged through the uniform wind hole to mix with the low-temperature airflow; the uniform wind area reduces the high-temperature airflow from directly entering the mixed air cavity, resulting in a short mixing residence time and uneven mixing; therefore, the above structure allows the high-temperature airflow to pass through three places on the surrounding porous plates, thereby improving the uniformity and efficiency of the mixing of the low-temperature airflow and the high-temperature airflow.
[0011] Optionally, the plurality of uniform air holes are evenly arranged along the plurality of uniform air side plates, and the plurality of uniform air holes are all arranged at a horizontal projection height position of the low-temperature air inlet.
[0012] By adopting the above technical solution, a number of uniform air holes are evenly arranged along the uniform air side plate, and the positions of the uniform air holes are set at the horizontal projection height of the low-temperature air inlet, so that the high and low temperature gases entering the mixed air cavity can be mixed more evenly during the deflection process, thereby improving the uniformity and efficiency of the mixed air.
[0013] Optionally, the casing is provided with a regulating valve plate at the high-temperature air inlet to adjust the air intake volume entering the high-temperature air inlet.
[0014] By adopting the above technical solution, an adjusting valve plate is set to adjust the air intake volume entering the high-temperature air inlet, thereby being able to control the air volume of the high-temperature gas entering the air mixing cavity, so that the temperature of the mixing air outlet can be adjusted according to actual needs, ensuring the efficient operation and safety of the air mixing device.
[0015] Optionally, the casing is further provided with a valve plate rotating assembly and a valve plate executing assembly connected to the regulating valve plate at the regulating valve plate, and the valve plate executing assembly controls the start-up of the valve plate rotating assembly to utilize the valve plate rotating assembly to drive the regulating valve plate seat to rotate.
[0016] By adopting this technical solution, precise control of the air volume entering the high-temperature air inlet is achieved, ensuring accurate adjustment of the air mixing ratio. The coordination of the valve plate actuator assembly and the valve plate rotation assembly enables the regulating valve plate to operate smoothly and reliably, further improving the overall operational stability of the air mixing device.
[0017] Optionally, the housing is further provided with a support frame at the valve, and the valve plate actuator assembly and the valve plate rotating assembly are mounted on the support frame.
[0018] By adopting the above technical solution, the support frame added to the casing at the valve can effectively support the valve plate actuator and the valve plate rotating assembly, ensuring the smooth operation of the regulating valve plate, and then accurately controlling the air volume entering the high-temperature air inlet, ensuring the safe and stable operation of the entire device and the accurate adjustment of the mixed air ratio.
[0019] Optionally, a thermal insulation layer is provided on the inner side wall of the casing, and the thermal insulation layer covers the air mixing cavity.
[0020] By adopting the above technical solution, the insulation layer arranged on the inner wall of the casing covers the air mixing cavity, which effectively reduces heat loss, ensures the temperature stability inside the air mixing device, and improves the overall air mixing efficiency.
[0021] Optionally, the outer side wall of the casing is provided with a plurality of reinforcing ribs, and the reinforcing ribs are arranged along the circumference of the casing.
[0022] By adopting the above technical solution, a number of reinforcing ribs are provided on the outer side wall of the casing, and the reinforcing ribs are arranged along the circumference of the casing, thereby enhancing the overall structural strength and stability of the casing, reducing the risk of deformation caused by external mechanical stress, and ensuring the safety and reliability of the long-term operation of the high and low temperature gas deflection and mixing air device.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The deflection structure formed by the intersection of the high-temperature air inlet and the low-temperature air inlet axis enables effective mixing of gases when entering the air mixing cavity, enhancing the air mixing effect. This high- and low-temperature gas deflection air mixing device can significantly reduce the device's footprint and extend the gas's residence time in the air mixing cavity, thereby improving the uniformity and efficiency of air mixing.
[0025] 2. Several air-uniform holes are evenly arranged along the air-uniform side panels, and the air-uniform holes are located at the horizontal projection height of the low-temperature air inlet, so that the high and low-temperature gases entering the air mixing cavity can be more evenly mixed during the deflection process, thereby improving the uniformity and efficiency of the air mixing;
[0026] 3. The outer wall of the casing is provided with a number of reinforcing ribs, which are arranged along the circumference of the casing, thereby enhancing the overall structural strength and stability of the casing, reducing the risk of deformation caused by external mechanical stress, and ensuring the safety and reliability of the long-term operation of the high and low temperature gas deflection and mixing air device. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a structural schematic diagram of a high and low temperature gas deflection and mixing air device in an embodiment of the present application.
[0028] Figure 2 It is a cross-sectional view used to illustrate the internal structure of the air mixing cavity in the embodiment of the present application.
[0029] Explanation of the accompanying symbols: 1. Casing; 11. Air mixing cavity; 12. High-temperature air inlet; 13. Low-temperature air inlet; 14. Air mixing outlet; 15. Insulation layer; 16. Reinforcement rib; 2. Air uniformity bottom plate; 3. Air uniformity side plate; 31. Air uniformity hole; 4. Adjusting valve plate; 5. Valve plate rotating assembly; 6. Support frame. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-2 This application is described in further detail.
[0031] The embodiment of the present application discloses a high and low temperature gas baffle mixing device. Figure 1 and Figure 2 The high and low temperature gas deflection and air mixing device includes a casing 1, a mixing air cavity 11 is formed inside the casing 1, a high temperature air inlet 12 is provided on the top of the casing 1, and a low temperature air inlet 13 and a mixed air outlet 14 are provided on the side wall of the casing 1. The low temperature air inlet 13 is located above the mixed air outlet 14, and the axis of the high temperature air inlet 12 and the axis of the low temperature air inlet 13 intersect to form a high and low temperature gas deflection structure.
[0032] The high-temperature air inlet 12 and the low-temperature air inlet 13 are connected by the top and side walls of the housing 1. The high-temperature air inlet 12 is located at the top of the housing 1, while the low-temperature air inlet 13 is located above the side walls. Their axes intersect, forming a deflection structure for high and low-temperature gases. This arrangement allows for effective mixing of high-temperature and low-temperature gases within the housing 1, improving the air mixing effect.
[0033] The deflection structure formed by the intersection of the axes of the high-temperature air inlet 12 and the low-temperature air inlet 13 enables the gas to be effectively mixed when entering the air mixing cavity 11, thereby enhancing the air mixing effect; the high and low temperature gas deflection air mixing device can significantly reduce the footprint of the device, extend the residence time of the gas in the air mixing cavity 11, thereby improving the uniformity and efficiency of the air mixing.
[0034] Reference Figure 1 and Figure 2 , an insulation layer 15 is adhered to the inner wall of the casing 1, and the insulation layer 15 covers the air mixing cavity 11; for example, the insulation layer 15 includes an inner insulation layer 15 and an outer insulation layer 15. The inner insulation layer 15 is made of high-temperature resistant material, such as aluminum silicate fiber or ceramic fiber board, and has a thickness of 20-50 mm. The outer insulation layer 15 is made of polyurethane foam or rock wool material, and has a thickness of 10-20 mm. The insulation layer 15 is fixedly connected to the inner and outer walls of the casing 1 by screws or buckles. The insulation layer 15 ensures that the high-temperature gas inside the casing 1 is isolated from the external environment, reduces heat loss, and prevents high temperature from being conducted to the outside of the casing 1, causing excessive temperature and affecting the safety of equipment use.
[0035] A plurality of reinforcing ribs 16 are welded to the outer side wall of the housing 1 , and the reinforcing ribs 16 are arranged along the circumference of the housing 1 .
[0036] Reference Figure 1 and Figure 2, the casing 1 is provided with a support frame 6 at the high-temperature air inlet 12, and the support frame 6 is fixed to the top outer wall of the casing 1 by bolts, and a valve plate rotating assembly 5 is installed in the support frame 6. In this embodiment, the valve plate rotating assembly 5 is a motor and a shaft, and the motor is installed in the support frame 6. The drive shaft of the motor is connected to the shaft, and an adjusting valve plate 4 is installed on the shaft; a valve plate actuator assembly is also provided at the casing 1, and the valve plate actuator assembly is a controller and a temperature sensor in this embodiment. The temperature sensor is installed on the inner wall of the casing 1 to sense the air flow temperature in the mixed air cavity 11. The temperature sensor is electrically connected to the controller, which is a PLC controller, and the controller is electrically connected to the motor; the temperature sensor senses the air flow temperature in the mixed air cavity 11 and sends the temperature signal to the controller. After receiving the temperature signal, the controller controls the motor to drive the shaft to rotate to achieve adjustment of the regulating valve plate 4.
[0037] Reference Figure 1 and Figure 2 , a uniform wind bottom plate 2 and several uniform wind side plates 3 are arranged in the air mixing cavity 11. The uniform wind bottom plate 2 is made of high-temperature resistant material, such as stainless steel or aluminum plate, with a thickness of 1.5-3mm, and is fixedly connected to the inner wall of the casing 1. The uniform wind side plates 3 are made of high-temperature resistant metal materials, such as stainless steel or aluminum alloy plates, with a thickness of 1.2-2.5mm. The top of the uniform wind side plate 3 is connected to the inner wall of the casing 1, enclosing a uniform wind area, and the uniform wind area is connected to the high-temperature air inlet 12. Several uniform wind holes 31 are evenly arranged on the uniform wind side plate 3, with a hole diameter of 1-2.5mm and a hole density of 300-500 holes / cm²; several uniform wind holes 31 are evenly arranged along several uniform wind side plates 3, and several uniform wind holes 31 are all arranged at the horizontal projection height position of the low-temperature air inlet 13. The uniform wind holes 31 ensure uniform mixing of high-temperature gas and low-temperature gas.
[0038] The implementation principle of a high-low temperature gas deflection and air mixing device in an embodiment of the present application is: the deflection structure formed by the intersection of the axes of the high-temperature air inlet 12 and the low-temperature air inlet 13 enables the gas to be effectively mixed when entering the air mixing cavity 11, thereby enhancing the air mixing effect; the high-low temperature gas deflection and air mixing device can significantly reduce the footprint of the device, extend the residence time of the gas in the air mixing cavity 11, thereby improving the uniformity and efficiency of the air mixing.
[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A high and low temperature gas baffle mixing device, characterized by: The invention comprises a casing (1), wherein a mixed air cavity (11) is formed inside the casing (1), a high-temperature air inlet (12) is provided on the top of the casing (1), and a low-temperature air inlet (13) and a mixed air outlet (14) are provided on the side wall of the casing (1), wherein the low-temperature air inlet (13) is located above the mixed air outlet (14), and the axis of the high-temperature air inlet (12) and the axis of the low-temperature air inlet (13) intersect to form a high-low temperature gas deflection structure.
2. The high and low temperature gas baffle and air mixing device according to claim 1, characterized in that: A uniform wind bottom plate (2) and a plurality of uniform wind side plates (3) are provided in the air mixing cavity (11); the plurality of uniform wind side plates (3) are connected to the inner wall of the casing (1) at the high-temperature air inlet (12); the plurality of uniform wind side plates (3) enclose a uniform wind area; a plurality of uniform wind holes (31) are provided on the plurality of uniform wind side plates (3); the uniform wind bottom plate (2) is connected to one end of the plurality of uniform wind side plates (3) away from the high-temperature air inlet (12) to close the uniform wind area.
3. The high and low temperature gas baffle and air mixing device according to claim 2, characterized in that: The plurality of uniform air holes (31) are evenly arranged along the plurality of uniform air side plates (3), and the plurality of uniform air holes (31) are all arranged at the horizontal projection height position of the low-temperature air inlet (13).
4. The high and low temperature gas baffle and air mixing device according to claim 1, characterized in that: The casing (1) is provided with a regulating valve plate (4) at the high-temperature air inlet (12) to regulate the amount of air entering the high-temperature air inlet (12).
5. The high and low temperature gas baffle and air mixing device according to claim 4, characterized in that: The housing (1) is further provided with a valve plate rotating assembly (5) and a valve plate executing assembly connected to the regulating valve plate (4) at the valve position. The valve plate executing assembly controls the start-up of the valve plate rotating assembly (5) so as to utilize the valve plate rotating assembly (5) to drive the regulating valve plate (4) seat to rotate.
6. The high and low temperature gas baffle and air mixing device according to claim 5, characterized in that: The housing (1) is further provided with a support frame (6) located at the regulating valve plate (4), and the valve plate actuator assembly and the valve plate rotating assembly (5) are mounted on the support frame (6).
7. The high and low temperature gas baffle and air mixing device according to claim 1, characterized in that: A heat-insulating layer (15) is provided on the inner side wall of the casing (1), and the heat-insulating layer (15) covers the air mixing cavity (11).
8. The high and low temperature gas baffle and air mixing device according to claim 1, characterized in that: The outer side wall of the casing (1) is provided with a plurality of reinforcing ribs (16), and the reinforcing ribs (16) are arranged along the circumference of the casing (1).