On-line monitoring instrument for adsorption efficiency of activated carbon

Abstract

The utility model belongs to the technical field of environmental protection monitoring equipment, and particularly relates to an activated carbon adsorption efficiency online monitoring instrument which comprises a controller, a display screen module, two mounting brackets and two groups of data acquisition modules, the two groups of data acquisition modules are fixedly connected to the two mounting brackets respectively, each mounting bracket comprises a center block, the peripheral side of the center block is fixedly connected with a plurality of telescopic connecting arms which take the axis of the center block as the center and are in an annular array, mounting plates are mounted on the telescopic connecting arms through self-adaptive adjusting groups, and the data acquisition modules are opposite to the mounting plates one by one; and the plurality of data acquisition modules in the same group are fixedly connected to the plurality of mounting plates respectively. According to the utility model, the data acquisition modules can be simply and uniformly mounted in the two air pipes, data acquisition is carried out on inlet air and outlet air of the activated carbon box, and data is provided for online monitoring of the adsorption efficiency of the activated carbon.

Description

Technical Field

[0001] This utility model belongs to the field of environmental monitoring equipment technology, specifically relating to an online monitoring instrument for activated carbon adsorption efficiency. Background Technology

[0002] Activated carbon adsorption technology is widely used in industrial waste gas treatment and indoor air purification. During the adsorption of volatile organic compounds (TVOCs) and other pollutants in waste gas, the adsorption capacity of activated carbon gradually decreases with increasing usage time. When adsorption reaches saturation, the activated carbon needs to be replaced promptly to ensure effective waste gas treatment and air quality.

[0003] Currently, determining whether activated carbon needs replacement mostly relies on manual experience or periodic replacement. Manual experience is subjective and inaccurate; periodic replacement, on the other hand, cannot flexibly adjust the replacement cycle based on actual usage, easily leading to activated carbon waste or untimely replacement resulting in poor waste gas treatment.

[0004] While some monitoring solutions exist in the existing technology, they are complex to install and difficult to distribute sensors evenly, resulting in insufficient data representativeness. Utility Model Content

[0005] The purpose of this invention is to provide an online monitoring instrument for activated carbon adsorption efficiency, which can easily and evenly install the data acquisition module inside two air ducts to collect data on the air intake and exhaust of the activated carbon box, providing data for online monitoring of activated carbon adsorption efficiency.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] An online monitoring instrument for activated carbon adsorption efficiency includes a controller, a display module, two mounting brackets, and two sets of data acquisition modules. The display module and the data acquisition modules are electrically connected to the controller, and the two sets of data acquisition modules are respectively fixedly connected to the two mounting brackets.

[0008] The mounting bracket includes a central block, and multiple telescopic connecting arms arranged in a circular array around the central block's axis are fixedly connected to the periphery of the central block. Mounting plates are mounted on the telescopic connecting arms via adaptive adjustment groups. The data acquisition modules and mounting plates are one-to-one, and multiple data acquisition modules in the same group are fixedly connected to multiple mounting plates respectively.

[0009] When the telescopic connecting arm extends or retracts, the adaptive adjustment group moves the mounting plate to the middle position along the length of the telescopic connecting arm.

[0010] Furthermore, the data acquisition module includes a TVOC concentration sensor, a wind speed and air volume sensor, and a pressure sensor that are electrically connected to the controller.

[0011] Furthermore, the adaptive adjustment group includes a movable bracket, the mounting plate is fixedly connected to the movable bracket, and tension springs are fixedly connected to both ends of the movable bracket. The ends of the two tension springs away from the movable bracket are respectively fixedly connected to both ends of the telescopic connecting arm.

[0012] Furthermore, the telescopic connecting arm includes a sleeve fixedly connected to the outside of the central block, a sliding plate slidably connected inside the sleeve, and a return spring fixedly connected inside the sleeve to abut against the sliding plate, wherein the elastic force of the return spring is greater than that of the tension spring.

[0013] The ends of the two tension springs away from the movable bracket are respectively fixedly connected to the ends of the slide plate and the sleeve that are away from each other.

[0014] Furthermore, the movable support is slidably connected to the outside of the sleeve.

[0015] Furthermore, a guide rod is fixedly connected inside the sleeve, the return spring is sleeved on the outside of the guide rod, and the slide plate is slidably connected to the outside of the guide rod.

[0016] Furthermore, a top plate is fixedly connected to the end of the skateboard.

[0017] The technical effects achieved by this utility model are as follows:

[0018] The present invention provides an online monitoring instrument for activated carbon adsorption efficiency. The data acquisition module can be evenly installed inside two air ducts to collect data on the air intake and exhaust of the activated carbon box, providing data for online monitoring of activated carbon adsorption efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the telescopic connecting arm of this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the telescopic connecting arm of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Activated carbon box; 2. Air duct; 3. Display module; 4. Center block; 5. Mounting plate; 6. TVOC concentration sensor; 7. Wind speed and air volume sensor; 8. Pressure sensor; 9. Top plate; 10. Sleeve; 11. Slide plate; 12. Movable bracket; 13. Return spring; 14. Guide rod; 15. Tension spring. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figures 1-4 As shown, an online monitoring instrument for activated carbon adsorption efficiency includes a controller, a display module 3, two mounting brackets, and two sets of data acquisition modules. The display module 3 and the data acquisition modules are both electrically connected to the controller.

[0027] Two sets of data acquisition modules are fixedly connected to two mounting brackets. The two sets of data acquisition modules are fixedly connected to the air ducts 2 on the front and rear sides of the activated carbon box 1 through the mounting brackets. The data acquisition modules can then collect the air intake and exhaust data of the activated carbon box 1.

[0028] The air duct 2 on the front side of the activated carbon box 1 is the air inlet of the activated carbon box 1, and the air duct 2 on the rear side of the activated carbon box 1 is the air outlet of the activated carbon box 1.

[0029] By monitoring parameters such as TVOC concentration before and after activated carbon box 1, exhaust fan speed and volume, and pressure before and after the carbon box, the efficiency of activated carbon use is comprehensively evaluated, providing customers with accurate basis for activated carbon replacement, improving activated carbon use efficiency, reducing waste gas treatment costs, and ensuring waste gas treatment effect.

[0030] The data acquisition module includes a TVOC concentration sensor 6, an air speed and air volume sensor 7, and a pressure sensor 8, which are electrically connected to the controller.

[0031] TVOC concentration sensors 6, which are respectively installed at the front and rear ends of the activated carbon box 1, are used to collect TVOC concentration data in real time. The TVOC concentration sensors 6 adopt the PID (photoionization) detection principle, which can quickly and accurately detect the TVOC concentration in the exhaust gas.

[0032] By installing a wind speed and air volume sensor 7 to monitor wind speed and air volume data, the wind speed and air volume sensor 7 accurately measures the gas flow rate and flow rate through the Pitot tube principle or ultrasonic principle.

[0033] Pressure sensors 8, installed at both ends of the activated carbon box 1, are used to monitor the pressure data before and after the box. The pressure sensors 8 employ either piezoresistive or capacitive principles, enabling stable measurement of gas pressure changes.

[0034] The controller is a microprocessor with data processing and analysis capabilities, such as a microcontroller or a PLC (Programmable Logic Controller). The controller connects to the data acquisition module via wired or wireless means, receiving TVOC concentration data, wind speed and volume data, and pressure data collected by the module. The controller has a built-in preset algorithm program that comprehensively evaluates the effectiveness of activated carbon based on the received data, following these steps:

[0035] Calculate the difference in TVOC concentration before and after activated carbon chamber 1 to determine the adsorption capacity of activated carbon. If the concentration difference gradually decreases, it indicates that the adsorption capacity of activated carbon is decreasing.

[0036] By combining wind speed and air volume data, the adsorption effect of activated carbon under different gas flow rates is analyzed. When wind speed and air volume change, the adaptability of activated carbon to different flow rates of waste gas is evaluated by the change in concentration difference.

[0037] Based on the pressure data before and after activated carbon chamber 1, determine whether the activated carbon is clogged or otherwise affecting adsorption efficiency. If the pressure difference increases abnormally, it may indicate that the activated carbon layer is clogged, affecting gas passage and adsorption effect.

[0038] Based on the above data and analysis results, an algorithm is used to derive an evaluation value for the activated carbon's performance, which is then compared to a preset threshold. When the evaluation value falls below the threshold, the activated carbon is deemed to need replacement. By comprehensively analyzing and processing the collected data using the algorithm, the performance of activated carbon can be accurately evaluated, avoiding the subjectivity of manual experience and the blindness of periodic replacement, thus improving the accuracy and reliability of the assessment.

[0039] The display module 3 is a touch screen or LCD screen connected to the controller. It is used to display in real time various data collected by the data acquisition module (such as TVOC concentration, wind speed and air volume, pressure, etc.), as well as the activated carbon performance evaluation value calculated by the controller, and prompts indicating whether the activated carbon needs to be replaced. Users can intuitively understand the operating status of the activated carbon adsorption system and the usage of the activated carbon through the display module 3.

[0040] Among them, such as Figures 1-2 As shown, the mounting bracket includes a central block 4. Multiple telescopic connecting arms arranged in a ring around the central block 4 are fixedly connected to the periphery of the central block 4. Mounting plates 5 are mounted on the telescopic connecting arms through an adaptive adjustment group. Data acquisition modules and mounting plates 5 are one-to-one. Multiple data acquisition modules in the same group are fixedly connected to multiple mounting plates 5 respectively.

[0041] When the telescopic connecting arm extends or retracts, the adaptive adjustment group moves the mounting plate 5 to the middle position in the length direction of the telescopic connecting arm. After the multiple telescopic connecting arms and the air duct 2 are fixedly connected, the positions of the multiple data acquisition modules can be automatically located, so that the multiple data acquisition modules are evenly distributed inside the air duct 2. This makes it relatively easy to install the data acquisition modules inside the two air ducts 2 to collect data on the air intake and exhaust of the activated carbon box 1.

[0042] like Figures 2-3 As shown, the adaptive adjustment group includes a movable bracket 12, and a mounting plate 5 is fixedly connected to the movable bracket 12. Both ends of the movable bracket 12 are fixedly connected to tension springs 15. The ends of the two tension springs 15 away from the movable bracket 12 are respectively fixedly connected to the two ends of the telescopic connecting arm. When the telescopic connecting arm moves, the position of the movable bracket 12 can be automatically adjusted by the two tension springs 15 so that the movable bracket 12 is located in the middle position of the telescopic connecting arm.

[0043] The telescopic connecting arm includes a sleeve 10 fixedly connected to the outside of the center block 4. A slide plate 11 is slidably connected inside the sleeve 10. A return spring 13 that abuts against the slide plate 11 is also fixedly connected inside the sleeve 10. The elastic force of the return spring 13 is greater than that of the tension spring 15. In the initial state, the return spring 13 will push the slide plate 11, so that the slide plate 11 abuts against the inner wall of the air duct 2, thus fixing the slide plate 11.

[0044] The ends of the two tension springs 15 away from the movable bracket 12 are fixedly connected to the ends of the slide plate 11 and the sleeve 10 away from each other, so that the position of the movable bracket 12 is automatically adjusted when the slide plate 11 extends or retracts.

[0045] Meanwhile, the movable bracket 12 is preferably slidably connected to the outside of the sleeve 10, so that the sleeve 10 can be used to position the movable bracket 12 and the mounting plate 5, TVOC concentration sensor 6, wind speed and air volume sensor 7, and pressure sensor 8 fixed on the movable bracket 12.

[0046] Inside the sleeve 10, a guide rod 14 is fixedly connected. The return spring 13 is sleeved on the outside of the guide rod 14, and the slide plate 11 is slidably connected to the outside of the guide rod 14. The guide rod 14 can be used to position the return spring 13 and reduce the offset phenomenon of the return spring 13.

[0047] like Figures 2-3 As shown, a top plate 9 is fixedly connected to the end of the slide plate 11. The top plate 9 can increase the contact area between the slide plate 11 and the air duct 2, thereby improving the stability of the fixation.

[0048] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An online monitoring instrument for activated carbon adsorption efficiency, characterized in that: It includes a controller, a display module (3), two mounting brackets and two sets of data acquisition modules. The display module (3) and the data acquisition modules are electrically connected to the controller, and the two sets of data acquisition modules are fixedly connected to the two mounting brackets respectively. The mounting bracket includes a central block (4), and multiple telescopic connecting arms arranged in a ring around the central block (4) are fixedly connected to the periphery of the central block (4). Mounting plates (5) are mounted on the telescopic connecting arms through an adaptive adjustment group. The data acquisition modules and the mounting plates (5) are one-to-one, and multiple data acquisition modules in the same group are fixedly connected to multiple mounting plates (5). When the telescopic connecting arm performs a telescopic action, the adaptive adjustment group moves the mounting plate (5) to the middle position in the length direction of the telescopic connecting arm.

2. The online monitoring instrument for activated carbon adsorption efficiency according to claim 1, characterized in that: The data acquisition module includes a TVOC concentration sensor (6), a wind speed and air volume sensor (7), and a pressure sensor (8) that are electrically connected to the controller.

3. The online monitoring instrument for activated carbon adsorption efficiency according to claim 1, characterized in that: The adaptive adjustment group includes a movable bracket (12), the mounting plate (5) is fixedly connected to the movable bracket (12), and tension springs (15) are fixedly connected to both ends of the movable bracket (12). The ends of the two tension springs (15) away from the movable bracket (12) are respectively fixedly connected to the two ends of the telescopic connecting arm.

4. The online monitoring instrument for activated carbon adsorption efficiency according to claim 3, characterized in that: The telescopic connecting arm includes a sleeve (10) fixedly connected to the outside of the center block (4), a sliding plate (11) is slidably connected inside the sleeve (10), and a return spring (13) that abuts against the sliding plate (11) is also fixedly connected inside the sleeve (10), and the elastic force of the return spring (13) is greater than that of the tension spring (15). The ends of the two tension springs (15) away from the movable bracket (12) are fixedly connected to the ends of the slide plate (11) and the sleeve (10) away from each other, respectively.

5. The online monitoring instrument for activated carbon adsorption efficiency according to claim 4, characterized in that: The movable bracket (12) is slidably connected to the outside of the sleeve (10).

6. The online monitoring instrument for activated carbon adsorption efficiency according to claim 4, characterized in that: The sleeve (10) is also fixedly connected to a guide rod (14), the return spring (13) is sleeved on the outside of the guide rod (14), and the slide plate (11) is slidably connected to the outside of the guide rod (14).

7. The online monitoring instrument for activated carbon adsorption efficiency according to claim 4, characterized in that: The top plate (9) is fixedly connected to the end of the sliding plate (11).

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