Multi-channel adjustable waste gas sampling and distributing device

Abstract

The utility model relates to the technical field of waste gas sampling and distribution, in particular to a multi-channel adjustable waste gas sampling and distributing device which comprises a main control box, branch pipelines, an adjusting disc, a driving assembly and a positioning mechanism. The adjusting disc is driven by the stepping motor to rotate, accurate angle control is achieved in combination with the photoelectric sensor and the positioning groove, and the flow of each branch pipeline is dynamically adjusted. A flow meter and a control unit in the distribution module cooperatively work to monitor, regulate and control the flow in real time; the heat dissipation assembly and the damping mechanism improve the stability. The device is compact in structure, can meet accurate flow control requirements under complex working conditions, and is suitable for multi-channel waste gas sampling and distribution scenes.

Description

Technical Field

[0001] This utility model belongs to the field of environmental monitoring and analysis technology, specifically a multi-channel adjustable exhaust gas sampling and distribution device. Background Technology

[0002] When sampling and distributing exhaust gases, appropriate exhaust gas sampling and distribution devices are required. These devices enable the control and distribution of exhaust gas flow in multi-pipeline and multi-condition scenarios, thereby meeting practical application needs. However, current exhaust gas sampling and distribution devices on the market typically employ a single-channel or fixed distribution mode, making it difficult to achieve precise control and efficient distribution under complex operating conditions. This leads to problems such as low efficiency and inconvenient operation in some scenarios.

[0003] A search revealed a method and system for treating kitchen waste (publication number CN116037605B), which uses a high-temperature exhaust gas distribution model to allocate high-temperature exhaust gas to multiple kitchen waste conveying pipes. While this approach achieves a certain degree of exhaust gas distribution, it relies on a pre-set model and lacks real-time dynamic adjustment capabilities, limiting its adaptability to complex and changing operating conditions. Furthermore, this design primarily targets kitchen waste treatment scenarios and does not consider broader applications of multi-channel exhaust gas sampling and distribution, thus limiting its applicability. Utility Model Content

[0004] This invention provides a multi-channel adjustable exhaust gas sampling and distribution device, which aims to solve the problem that existing exhaust gas sampling and distribution devices are difficult to achieve accurate flow control and efficient distribution under complex working conditions.

[0005] The present invention adopts the following technical solution:

[0006] A multi-channel adjustable exhaust gas sampling and distribution device includes: a main control box fixedly mounted on a base, wherein the main control box contains a distribution module for real-time monitoring and control of exhaust gas flow; multiple branch pipes fixedly connected to one side of the main control box, each branch pipe having its inlet end connected to the main control box and its outlet end extending to a different target channel; an adjustment disc rotatably mounted in the main control box, the adjustment disc having multiple through holes, each through hole corresponding to the inlet of a corresponding branch pipe; a drive assembly disposed between the main control box and the adjustment disc for driving the adjustment disc to rotate; and a positioning mechanism disposed between the main control box and the adjustment disc for precisely positioning the rotation angle of the adjustment disc.

[0007] Preferably, the drive assembly includes: a stepper motor fixedly mounted on the outer wall of the main control box, the output shaft of the stepper motor passing through the side wall of the main control box and fixedly connected to the center position of the adjustment disk; and a limiting ring fixedly sleeved on the output shaft of the stepper motor, the limiting ring being located between the inner wall of the main control box and the adjustment disk, the limiting ring being used to limit the range of movement of the adjustment disk in the axial direction.

[0008] Preferably, the positioning mechanism includes: a photoelectric sensor fixedly installed on the inner wall of the main control box, the detection end of the photoelectric sensor facing the edge of the adjustment disk; a plurality of positioning grooves provided on the edge of the adjustment disk, the shape and size of each positioning groove matching the detection end of the photoelectric sensor; and an elastic pressure plate fixedly installed on the inner wall of the main control box, one end of the elastic pressure plate contacting the edge of the adjustment disk, for applying a certain pressure to the adjustment disk to enhance its stability.

[0009] Preferably, the distribution module includes: a flow meter fixedly installed inside the main control box, with both ends of the flow meter connected to the air inlet of the main control box and the through hole of the regulating disc, respectively; a control unit fixedly installed inside the main control box, the control unit being connected to the flow meter and the stepper motor via signal lines; and a display screen fixedly installed on the outer wall of the main control box, the display screen being connected to the control unit via data lines for displaying the current flow information of each branch pipe.

[0010] Preferably, the top of the main control box is provided with a heat dissipation assembly, which includes: a heat dissipation plate fixedly installed on the top of the main control box, the heat dissipation plate having multiple heat dissipation holes; a fan fixedly installed below the heat dissipation plate, the fan being fixedly connected to the inner wall of the main control box by bolts; and a dustproof net disposed above the heat dissipation plate, the dustproof net being fixedly connected to the heat dissipation plate by clips.

[0011] Preferably, the outlet end of the branch pipe is provided with a quick connector, the quick connector comprising: a connecting flange fixedly installed at the outlet end of the branch pipe, the outer wall of the connecting flange being provided with threads; a sealing ring fixedly sleeved on the connecting flange, the inner diameter of the sealing ring matching the outer diameter of the connecting flange; and a locking nut disposed outside the connecting flange, the locking nut engaging with the connecting flange through threads for tightly connecting the branch pipe to the target channel.

[0012] Preferably, the bottom of the main control box is provided with a shock absorption mechanism, which includes: multiple shock absorption columns fixedly installed on the base, the top of each shock absorption column being fixedly connected to the bottom of the main control box; a rubber pad fixedly sleeved on each shock absorption column, the rubber pad having a thickness of 5-10 mm; and a spring disposed inside the shock absorption column, the two ends of the spring being fixedly connected to the upper and lower end faces of the shock absorption column, respectively.

[0013] Compared to existing technologies, the multi-channel adjustable exhaust gas sampling and distribution device provided in this solution dynamically adjusts the flow rate of multiple branch pipes through the rotation of the adjustment disc. Combined with the design of photoelectric sensors and positioning slots, the accuracy of the adjustment disc's rotation angle is ensured. Simultaneously, the coordinated operation of the flow meter and control unit enables real-time monitoring and adjustment of the flow rate in each branch pipe, thus meeting the precise control requirements under complex operating conditions. Furthermore, the design of the heat dissipation components and vibration damping mechanism further enhances the stability and reliability of the device, making it suitable for a wider range of multi-channel exhaust gas sampling and distribution scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a top view of the internal structure and adjustment panel of the main control box of this utility model.

[0016] Figure 3 This is a partially enlarged view of the branch pipe and quick connector of this utility model.

[0017] Figure 4 This is a cross-sectional structural diagram of the heat dissipation component of this utility model.

[0018] Figure 5 This is a partial sectional view of the shock absorption mechanism of this utility model.

[0019] In the diagram, 1. Main control box; 2. Adjustment panel; 3. Branch pipe; 4. Stepper motor; 5. Photoelectric sensor; 6. Positioning slot; 7. Elastic pressure plate; 8. Flow meter; 9. Control unit; 10. Display screen; 11. Heat sink; 12. Fan; 13. Dustproof net; 14. Quick connector; 15. Shock absorber column; 16. Rubber pad; 17. Spring. Detailed Implementation

[0020] To facilitate understanding of the technical solution of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments.

[0021] This utility model provides a multi-channel adjustable exhaust gas sampling and distribution device, the overall structure of which is as follows: Figure 1As shown, the device includes a main control box 1, an adjustment panel 2, branch pipes 3, a stepper motor 4, a photoelectric sensor 5, a positioning groove 6, an elastic pressure plate 7, a flow meter 8, a control unit 9, a display screen 10, a heat sink 11, a fan 12, a dustproof net 13, a quick connector 14, a shock-absorbing column 15, a rubber pad 16, and a spring 17. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] The main control box 1, as the core component of the entire device, is fixedly mounted on the base. Inside, it houses a distribution module for monitoring and controlling exhaust gas flow. The distribution module includes a flow meter 8 and a control unit 9. The two ends of the flow meter 8 are connected to the air inlet of the main control box 1 and the through-hole on the regulating plate 2, respectively. The control unit 9 is connected to the flow meter 8 and the stepper motor 4 via signal lines, receiving data detected by the flow meter 8 and controlling the movement of the stepper motor 4. A display screen 10 is also installed on the outer wall of the main control box 1, connected to the control unit 9 via a data cable, for displaying real-time flow information of each branch pipe 3. Multiple branch pipes 3 are fixedly connected to one side of the main control box 1. The inlet end of each branch pipe 3 is connected to the main control box 1, and the outlet end extends to different target channels. The outlet end of each branch pipe 3 is equipped with a quick connector 14, such as… Figure 3 As shown, the quick connector 14 includes a connecting flange, a sealing ring, and a lock nut. The connecting flange is fixedly installed at the outlet end of the branch pipe 3, and its outer wall is threaded. The sealing ring is fitted outside the connecting flange and its inner diameter matches the outer diameter of the connecting flange. The lock nut engages with the connecting flange through the thread to tightly connect the branch pipe 3 to the target channel.

[0023] The regulating disc 2 is rotatably mounted inside the main control box 1, and has multiple through holes, each corresponding to the inlet of a branch pipe 3. The center of the regulating disc 2 is fixedly connected to the output shaft of the stepper motor 4, which is fixedly mounted on the outer wall of the main control box 1. The output shaft of the stepper motor 4 passes through the side wall of the main control box 1 and connects to the regulating disc 2. A limiting ring is fixedly sleeved on the output shaft of the stepper motor 4, located between the inner wall of the main control box 1 and the regulating disc 2. The limiting ring is a cylindrical structure, with both ends contacting the regulating disc 2 and the main control box 1 respectively, preventing displacement of the regulating disc 2 in the lateral direction and limiting its axial movement range. The edge of the regulating disc 2 has multiple positioning grooves 6, such as... Figure 2As shown, the photoelectric sensor 5 is fixedly installed on the inner wall of the main control box 1, with its detection end facing the edge of the adjustment disk 2. It is used to detect the position of the positioning slot 6. The photoelectric sensor is mainly used to sense the intensity of light. The light inside the positioning slot 6 is relatively weaker than the light on the surface of the adjustment disk 2. When the positioning slot 6 rotates to the position corresponding to the photoelectric sensor, the signal generated by the photoelectric sensor changes, thus detecting the position of the positioning slot 6. The elastic pressure plate 7 is fixedly installed on the inner wall of the main control box 1, with one end in contact with the edge of the adjustment disk 2. It is used to apply a certain pressure to the adjustment disk 2 to enhance its stability.

[0024] The top of the main control box 1 is equipped with a heat dissipation component, such as... Figure 4 As shown, the heat dissipation assembly includes a heat sink 11, a fan 12, and a dust filter 13. The heat sink 11 is fixedly mounted on the top of the main control box 1 and has multiple ventilation holes. The fan 12 is bolted to the bottom of the heat sink 11 and connected to the inner wall of the main control box 1 to accelerate airflow and improve heat dissipation. The dust filter 13 is secured above the heat sink 11 with clips to prevent dust from entering the main control box 1. A shock-absorbing mechanism is provided at the bottom of the main control box 1. Figure 5 As shown, the vibration damping mechanism includes multiple damping columns 15, rubber pads 16, and springs 17. The damping columns 15 are fixedly installed on the base, with their top ends fixedly connected to the bottom of the main control box 1. The rubber pads 16 are fixedly sleeved on each damping column 15, with a thickness of 5-10 mm. The springs 17 are located inside the damping columns 15, with their two ends fixedly connected to the upper and lower end faces of the damping columns 15, respectively, to absorb vibration energy and reduce the impact of external vibrations on the device.

[0025] In actual operation, after the exhaust gas enters through the inlet of the main control box 1, the flow rate is detected by the flow meter 8 and transmitted to the control unit 9. The control unit 9 calculates the required flow rate ratio of the branch pipe 3 based on the preset target flow rate value and controls the stepper motor 4 to drive the regulating plate 2 to rotate. The through holes on the regulating plate 2 correspond to the inlets of the branch pipes 3. When the regulating plate 2 rotates, the alignment degree between the different through holes and the inlets of the branch pipes 3 changes, thereby realizing the dynamic adjustment of the flow rate of each branch pipe 3. If it is necessary to change the adjustment ratio of each pipe 3, an independent control valve can be installed in the through hole of the regulating plate 2 to change the adjustment ratio of each pipe. The photoelectric sensor 5 ensures the accuracy of the rotation angle of the regulating plate 2 by detecting the position of the positioning groove 6 on the edge of the regulating plate 2. The elastic pressure plate 7 applies a certain pressure to the regulating plate 2 to prevent the regulating plate 2 from shifting due to external interference. The flow information of each branch pipe 3 is displayed in real time on the display screen 10 for easy monitoring by the operator.

[0026] Under complex operating conditions, such as large fluctuations in exhaust gas flow or high ambient temperatures, the heat dissipation components and vibration damping mechanism can effectively improve the stability and reliability of the device. The heat dissipation holes on the heat sink 11 and the fan 12 work together to quickly dissipate heat from inside the main control box 1, while the dust filter 13 prevents dust from entering and affecting the normal operation of internal components. The vibration damping mechanism, composed of the damping column 15, rubber pad 16, and spring 17, can absorb external vibration energy and reduce the impact of vibration on the device, thereby ensuring the flow distribution accuracy of the regulating disc 2 and the branch pipe 3.

[0027] The aforementioned structural design enables the device to adapt to various complex operating conditions for waste gas sampling and distribution. The rotation of the regulating disc 2 dynamically adjusts the flow rate of multiple branch pipes 3, and the design of the photoelectric sensor 5 and positioning groove 6 ensures the accuracy of the disc 2's rotation angle. The coordinated operation of the flow meter 8 and control unit 9 allows for real-time monitoring and adjustment of the flow rate in each branch pipe 3, thus meeting the precise control requirements under complex operating conditions. Furthermore, the design of the heat dissipation components and vibration damping mechanism further enhances the device's stability and reliability, making it suitable for a wider range of multi-channel waste gas sampling and distribution scenarios.

[0028] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with specific application scenarios.

[0029] In an industrial waste gas treatment scenario, waste gas from different production stages needs to be sampled and distributed to multiple treatment devices for purification. The main control box 1 is fixedly installed at the center of the waste gas treatment system, with its inlet connected to the main waste gas pipe. The outlets of branch pipes 3 are connected to different waste gas treatment devices via quick connectors 14. The operator first sets the target flow rate value for each branch pipe 3 via the display screen 10. The control unit 9 calculates the required rotation angle of the regulating disc 2 based on the preset value and starts the stepper motor 4 to drive the regulating disc 2 to rotate. The alignment of the through holes on the regulating disc 2 with the inlets of the branch pipes 3 changes, thereby dynamically adjusting the waste gas flow rate of each branch pipe 3. A photoelectric sensor 5 detects the position of the positioning groove 6 on the edge of the regulating disc 2 in real time to ensure the accuracy of the rotation angle. Simultaneously, an elastic pressure plate 7 applies appropriate pressure to the regulating disc 2 to prevent displacement due to external vibrations.

[0030] When the exhaust gas flow rate fluctuates significantly, the heat dissipation components and vibration damping mechanism play a crucial role. When the internal temperature of the main control box 1 rises, the fan 12 starts and accelerates airflow through the heat dissipation holes on the heat sink 11, rapidly expelling heat from the box. The dust filter 13 effectively prevents dust from entering, ensuring the normal operation of internal components. Simultaneously, the vibration damping mechanism, composed of the damping column 15, rubber pad 16, and spring 17, absorbs external vibration energy, reducing the impact of vibration on the device and thus ensuring the flow distribution accuracy of the regulating disc 2 and branch pipes 3. The flow meter 8 monitors the changes in exhaust gas flow rate within the main control box 1 in real time and transmits the data to the control unit 9. The control unit 9 dynamically adjusts the output of the stepper motor 4 based on the deviation between the actual flow rate and the target flow rate to ensure that the flow rate of each branch pipe 3 remains within the set range.

[0031] Under complex operating conditions, such as a sudden increase in exhaust gas flow or a sharp rise in ambient temperature, the control unit 9 detects the abnormal flow through the flow meter 8 and immediately adjusts the drive parameters of the stepper motor 4, causing the regulating disc 2 to rotate rapidly to a new angular position, thus redistributing the flow ratio of each branch pipe 3. The photoelectric sensor 5 continuously monitors the rotation angle of the regulating disc 2 to ensure precise alignment with the inlet of each branch pipe 3. During this process, the fan 12 in the heat dissipation assembly increases its speed to cope with the further increase in the internal temperature of the main control box 1, while the shock absorption mechanism absorbs external vibrations through the compression and rebound of the spring 17, preventing any impact on the stability of the regulating disc 2. Finally, the flow information of each branch pipe 3 is displayed in real time on the display screen 10, allowing operators to make manual fine adjustments as needed.

[0032] In the above steps, the rotation of the regulating disc 2 is achieved through precise control of the stepper motor 4, and its rotation angle is jointly ensured by the photoelectric sensor 5 and the positioning groove 6, thereby realizing dynamic adjustment of the multi-channel exhaust gas flow rate. The flow meter 8 and the control unit 9 work together to monitor and adjust the flow rate of each branch pipe 3 in real time, meeting the precise control requirements under complex working conditions. The design of the heat dissipation component and the shock absorption mechanism further improves the stability and reliability of the device, making it suitable for a wider range of multi-channel exhaust gas sampling and distribution scenarios. Through the combination of the above structure and operating principle, this utility model can achieve efficient and accurate exhaust gas sampling and distribution in multi-condition and multi-pipe application scenarios.

[0033] The above are merely preferred embodiments of this utility model. The scope of protection of this utility model is defined by the scope of the claims. Any improvements and modifications made by those skilled in the art without departing from the spirit and scope of this utility model should also be considered as protection within the scope of this utility model.

Claims

1. A multi-channel adjustable exhaust gas sampling and distribution device, characterized in that, include: The main control box (1) is fixedly installed on the base; Multiple branch pipes (3) are fixedly connected to one side of the main control box (1). The inlet end of each branch pipe (3) is connected to the main control box (1), and the outlet end extends to different target channels respectively. Rotate the adjustment plate (2) installed in the main control box (1). The adjustment plate (2) has multiple through holes, and the position of each through hole corresponds to the inlet of the corresponding branch pipe (3). A drive assembly disposed between the main control box (1) and the adjustment disk (2) for driving the adjustment disk (2) to rotate; A positioning mechanism is installed between the main control box (1) and the adjustment plate (2) to precisely position the rotation angle of the adjustment plate (2).

2. The multi-channel adjustable exhaust gas sampling and distribution device as described in claim 1, characterized in that, The driving component includes: A stepper motor (4) is fixedly installed on the outer wall of the main control box (1). The output shaft of the stepper motor (4) passes through the side wall of the main control box (1) and is fixedly connected to the center position of the adjustment plate (2). A limiting ring is fixedly sleeved on the output shaft of the stepper motor (4). The limiting ring is located between the inner wall of the main control box (1) and the adjusting plate (2) and is used to limit the range of movement of the adjusting plate (2) in the axial direction.

3. The multi-channel adjustable exhaust gas sampling and distribution device as described in claim 1, characterized in that, The positioning mechanism includes: A photoelectric sensor (5) is fixedly installed on the inner wall of the main control box (1), with the detection end of the photoelectric sensor (5) facing the edge of the adjustment disk (2); Multiple positioning slots (6) are provided on the edge of the adjustment disk (2), and the shape and size of each positioning slot (6) are matched with the detection end of the photoelectric sensor (5); An elastic pressure plate (7) is fixedly installed on the inner wall of the main control box (1), and one end of the elastic pressure plate (7) is in contact with the edge of the adjustment plate (2).

4. The multi-channel adjustable exhaust gas sampling and distribution device as described in claim 1, characterized in that, The main control box (1) is equipped with a distribution module, which includes: A flow meter (8) is fixedly installed inside the main control box (1), and the two ends of the flow meter (8) are respectively connected to the air inlet of the main control box (1) and the through hole of the regulating plate (2); A control unit (9) is fixedly installed in the main control box (1). The control unit (9) is connected to the flow meter (8) and the stepper motor (4) through signal lines. A display screen (10) is fixedly installed on the outer wall of the main control box (1), and the display screen (10) is connected to the control unit (9) via a data cable.

5. The multi-channel adjustable exhaust gas sampling and distribution device as described in claim 1, characterized in that, The top of the main control box (1) is provided with a heat dissipation assembly, which includes: A heat sink (11) is fixedly installed on the top of the main control box (1), and the heat sink (11) has multiple heat dissipation holes. A fan (12) is fixedly installed below the heat sink (11), and the fan (12) is fixedly connected to the inner wall of the main control box (1) by bolts; A dustproof net (13) is disposed above the heat sink (11), and the dustproof net (13) is fixedly connected to the heat sink (11) by a buckle.

6. The multi-channel adjustable exhaust gas sampling and distribution device as described in claim 1, characterized in that, The outlet end of the branch pipe (3) is provided with a quick connector (14), the quick connector (14) comprising: A connecting flange is fixedly installed at the outlet end of the branch pipe (3), and the outer wall of the connecting flange is provided with threads; A sealing ring is fixedly fitted onto the connecting flange, the inner diameter of which matches the outer diameter of the connecting flange; A lock nut is provided on the outside of the connecting flange, and the lock nut is threaded into the connecting flange.

7. The multi-channel adjustable exhaust gas sampling and distribution device as described in claim 1, characterized in that, The bottom of the main control box (1) is provided with a shock-absorbing mechanism, which includes: Multiple shock-absorbing columns (15) are fixedly installed on the base, and the top of each shock-absorbing column (15) is fixedly connected to the bottom of the main control box (1); A rubber pad (16) is fixedly sleeved on each shock-absorbing column (15), the thickness of the rubber pad (16) being 5 mm to 10 mm; A spring (17) is installed inside the shock-absorbing column (15), and the two ends of the spring (17) are fixedly connected to the upper and lower end faces of the shock-absorbing column (15), respectively.

8. The multi-channel adjustable exhaust gas sampling and distribution device as described in claim 1, characterized in that, The number of through holes in the regulating disc (2) is the same as the number of branch pipes (3), and the diameter of each through hole matches the diameter of the corresponding branch pipe (3) inlet.

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