Waste gas environmental pollution assessment and absorption equipment

Abstract

The utility model discloses waste gas environmental pollution assessment and absorption equipment which comprises an absorption tower main body, a waste gas inlet, a purified gas outlet, a waste gas inlet and a purified gas outlet, the absorption guide pipe is connected to the gas inlet end of the waste gas inlet; the gas extraction mechanism is arranged in the middle of the absorption tower main body and is used for extracting waste gas; the detection units are sequentially arranged in the absorption tower main body along the airflow direction of the waste gas inlet; the filtering assembly is arranged at the bottom of the absorption tower main body and is used for purifying waste gas; the sampling unit is connected to the side wall of the absorption tower main body and used for extracting waste gas. According to the waste gas environmental pollution assessment and absorption equipment provided by the utility model, waste gas detection assessment and purification absorption functions are integrated in the same equipment. When the waste gas is purified, various pollutant indexes such as TVOC (Total Volatile Organic Compound), CO, CO2 and PM2.5 (Particulate Matter 2.5) can be monitored in real time by utilizing various sensors, so that the problem of single function of the traditional equipment is solved, and the treatment and monitoring are synchronously carried out.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, and in particular to a waste gas environmental pollution assessment and absorption device. Background Technology

[0002] Industrial production and various processing and manufacturing processes often generate large amounts of industrial waste gas. This waste gas has a complex composition, typically containing volatile organic compounds (VOCs), particulate matter, carbon monoxide, carbon dioxide, methane, and other harmful substances. If emitted directly without treatment, it will cause serious pollution to the atmospheric environment and affect human health.

[0003] Traditional spray absorption equipment not only consumes a lot of water resources when purifying waste gas, but also easily generates secondary water pollution. Furthermore, acidic or alkaline liquids can easily corrode the equipment body, increasing maintenance costs. Utility Model Content

[0004] Therefore, it is necessary to provide a waste gas environmental pollution assessment and absorption device to address the above-mentioned technical problems and solve the problem of secondary pollution caused by traditional wet purification.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An environmental pollution assessment and absorption device for waste gas includes:

[0007] The absorption tower body is provided with a waste gas inlet and a purified gas outlet.

[0008] An absorption conduit, connected to the inlet end of the exhaust gas inlet, can extend and retract relative to the main body of the absorption tower to the exhaust gas position.

[0009] An extraction mechanism is located in the middle of the main body of the absorption tower for extracting waste gas;

[0010] The detection units are arranged sequentially inside the main body of the absorption tower along the direction of the exhaust gas inlet airflow.

[0011] The filter assembly is located at the bottom of the absorption tower body and is used to purify the exhaust gas;

[0012] The sampling unit is threadedly connected to the side wall of the absorption tower body and is used to extract waste gas for sampling and retention.

[0013] The absorption conduit includes a hose fixedly connected to the exhaust gas inlet and a filter cylinder fixedly connected to one end of the hose. A plastic retaining ring is also installed on the side wall of the absorption tower body, and the filter cylinder can be detachably snapped into the inside of the plastic retaining ring.

[0014] The filter cylinder is composed of two open cylindrical cylinders connected by threads. One cylinder has a spiral heating element inside, and the other cylinder has a filter screen inside.

[0015] Furthermore, the detection unit includes:

[0016] A photoionization detector is used to detect the concentration of total volatile organic compounds (TVOC).

[0017] Non-dispersive infrared sensors are used to detect the concentrations of carbon monoxide, carbon dioxide, and methane.

[0018] Laser scattering particulate matter sensor for monitoring PM2.5, PM10 and total suspended particulate matter concentrations.

[0019] Furthermore, the air extraction mechanism includes a motor installed in the middle of the absorption tower body, and a fan impeller is fixedly connected to the output end of the motor. The fan impeller is adapted to the internal space of the absorption tower body.

[0020] Furthermore, the filtration assembly includes a dry adsorption module disposed inside the absorption tower body, the dry adsorption module being able to slide into or out relative to the absorption tower body to replace the dry adsorption module.

[0021] Furthermore, the dry absorption module includes a filter layer, an adsorption layer, and a solid adsorption medium. The filter layer has a mesh structure for intercepting particulate matter and dust in the exhaust gas. The adsorption layer is filled with at least one of modified activated carbon, zeolite molecular sieve, or impregnated activated carbon for adsorbing VOCs or odor molecules. The solid adsorption medium has a honeycomb adsorbent structure, and the pore direction of the honeycomb adsorbent is parallel to the airflow direction.

[0022] Furthermore, the sampling unit includes a sampling tube and a piston that is slidably inserted into the inner wall of the sampling tube. One end of the sampling tube is provided with an on / off valve, and one end of the on / off valve is threadedly connected to a through hole in the side wall of the absorption tower body.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The waste gas environmental pollution assessment and absorption device provided by this utility model has the following effects:

[0025] This device integrates waste gas detection, assessment, purification, and absorption functions into a single unit. While purifying waste gas, it utilizes multiple sensors to monitor various pollutant indicators such as TVOC, CO, CO2, and PM2.5 in real time, overcoming the limitation of traditional equipment's single-function approach and enabling simultaneous treatment and monitoring.

[0026] Featuring a retractable absorption conduit and flexible hose design, it can flexibly reach pollution sources at different locations and heights for operation, overcoming the disadvantage of large assessment equipment being inconvenient to move. Meanwhile, the filter cartridge can be detachably snapped onto the side wall for easy storage and transport.

[0027] Dry purification avoids secondary pollution: It abandons the traditional spray washing method and uses dry adsorption modules (modified activated carbon, zeolite molecular sieves, etc.) for purification. This not only saves a significant amount of water resources but also completely avoids secondary water pollution and equipment corrosion caused by wastewater discharge, making it more environmentally friendly.

[0028] The spiral heating element and filter screen integrated inside the absorption duct can perform dehumidification and dust removal pretreatment before the exhaust gas enters the detection unit, effectively preventing water vapor and particulate matter from interfering with the sensor, and ensuring the accuracy of the detection data and the stability of the equipment. Attached Figure Description

[0029] Figure 1 A three-dimensional structural schematic diagram of a waste gas environmental pollution assessment and absorption device provided by this utility model;

[0030] Figure 2 A top view cross-sectional structural diagram of a waste gas environmental pollution assessment and absorption device provided by this utility model;

[0031] Figure 3 A side view cross-sectional structural diagram of a waste gas environmental pollution assessment and absorption device provided by this utility model;

[0032] Figure 4 A schematic diagram of the main cross-sectional structure of a waste gas environmental pollution assessment and absorption device provided by this utility model;

[0033] Figure 5 A schematic diagram of the sampling unit structure of an absorption device for assessing environmental pollution from waste gas provided by this utility model.

[0034] The markings in the diagram are explained as follows:

[0035] 1. Absorption tower body; 11. Waste gas inlet; 12. Purified gas outlet; 13. Plastic retaining ring;

[0036] 2. Absorption conduit; 21. Flexible hose; 22. Filter cartridge; 23. Spiral heating element; 24. Filter screen;

[0037] 3. Air extraction mechanism; 31. Motor; 32. Fan impeller;

[0038] 4. Detection unit; 41. Photoionization detector; 42. Non-dispersive infrared sensor; 43. Laser scattering particulate matter sensor;

[0039] 5. Filter assembly; 51. Filter layer; 52. Adsorption layer; 53. Solid adsorption medium;

[0040] 6. Sampling unit; 61. Sampling tube; 62. Piston; 63. Opening and closing valve. Detailed Implementation

[0041] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0042] Example 1

[0043] Please refer to Figure 1-5 An absorption device for assessing environmental pollution from waste gas, comprising:

[0044] The absorption tower body 1 is provided with a waste gas inlet 11 and a purified gas outlet 12.

[0045] The absorption conduit 2, which is connected to the inlet end of the exhaust gas inlet 11, can extend and retract relative to the main body 1 of the absorption tower to the exhaust gas position.

[0046] The exhaust mechanism 3 is located in the middle of the main body 1 of the absorption tower and is used to extract waste gas.

[0047] The detection unit 4 is arranged sequentially inside the main body 1 of the absorption tower along the airflow direction of the exhaust gas inlet 11;

[0048] The filter assembly 5 is installed at the bottom of the absorption tower body 1 to purify the exhaust gas;

[0049] Sampling unit 6 is threadedly connected to the side wall of the absorption tower body 1 and is used to extract waste gas for sampling and retention.

[0050] Detection unit 4 includes:

[0051] Photoionization detector 41 is used to detect the concentration of total volatile organic compounds (TVOC).

[0052] Non-dispersive infrared sensor 42 is used to detect the concentrations of carbon monoxide, carbon dioxide, and methane.

[0053] Laser scattering particulate matter sensor 43 is used to monitor the concentrations of PM2.5, PM10 and total suspended particulate matter.

[0054] Specifically, the tower body has a purified gas outlet 12 at the top and an exhaust gas inlet 11 on the bottom side wall. The tower body is made of corrosion-resistant material. Exhaust gas enters the tower through the inlet, is treated, and then discharged from the outlet. A photoionization detector 41, a non-dispersive infrared sensor 42, and a laser scattering particulate matter sensor 43 are arranged sequentially along the airflow direction. The exhaust gas flows through the detection unit, which monitors the concentrations of TVOC, CO / CO2 / CH4, and particulate matter in real time. The data is transmitted wirelessly to the terminal, and multiple parameters are detected simultaneously to comprehensively assess the degree of pollution. The real-time data provides a basis for governance decisions. The absorption tower body 1 is also equipped with a controller to receive and analyze the data acquired by the photoionization detector 41, the non-dispersive infrared sensor 42, and the laser scattering particulate matter sensor 43. The absorption tower body 1 is also equipped with a battery to power the various components.

[0055] Example 2

[0056] The waste gas environmental pollution assessment and absorption device provided in Embodiment 1 is further optimized. The sampling unit 6 includes a sampling tube 61 and a piston 62 that is slidably inserted into the inner wall of the sampling tube 61. One end of the sampling tube 61 is provided with an on / off valve 63, and one end of the on / off valve 63 is threadedly connected to the through hole of the side wall of the absorption tower body 1.

[0057] Specifically, when sampling is required, the on / off valve 63 is rotated to open the sampling tube 61, and the piston 62 is pulled to extract the gas inside the absorption tower body 1. This allows for the sampling and retention of heavily polluted gas, facilitating subsequent evaluation, treatment, and research. After sampling, the on / off valve 63 is closed to isolate the sampled gas. The side wall of the absorption tower body 1 has through holes that are compatible with the on / off valve 63. When the sampling unit 6 is not connected, the valve can be closed by plugging the connection, providing a physical sampling function. This compensates for the potential drift or inability to detect complex components by online sensors, achieving a perfect combination of online monitoring and offline analysis.

[0058] Example 3

[0059] The waste gas environmental pollution assessment absorption device provided in Embodiment 1 or 2 is further optimized. The absorption conduit 2 includes a hose 21 fixedly connected to the waste gas inlet 11 and a filter cylinder 22 fixedly connected to one end of the hose 21. A plastic retaining ring 13 is also installed on the side wall of the absorption tower body 1. The filter cylinder 22 can be detachably snapped into the inside of the plastic retaining ring 13.

[0060] The filter cylinder 22 is composed of two open cylindrical threads connected together. One cylinder has a spiral heating element 23 inside, and the other cylinder has a filter screen 24 inside.

[0061] Specifically, the flexible hose 21 is stretched to the exhaust gas source. The exhaust gas first enters the cylinder equipped with a spiral heating element 23. After the power is turned on, the spiral heating element 23 heats up rapidly, heating the passing exhaust gas. Subsequently, the exhaust gas enters the next cylinder through the threaded connection, and is intercepted by the filter screen 24. After use, the filter cylinder 22 is disassembled for cleaning or replacement. The plastic retaining ring 13 has an elastic structure, which facilitates the securing of the filter cylinder 22 by its own elasticity, thereby achieving the purpose of easy carrying.

[0062] Heating and dehumidification: The spiral heating element 23 can increase the temperature of the exhaust gas and prevent water vapor in the exhaust gas from condensing in the subsequent detection unit 4 and filter assembly 5. This avoids condensation water from damaging the sensor or clogging the pores of the adsorption material, ensuring the accuracy of the detection data.

[0063] Primary purification: Filter 24 intercepts large particles of dust and flocculent matter in the exhaust gas, providing primary protection and preventing them from entering the tower and contaminating the precision sensors.

[0064] Example 4

[0065] The waste gas environmental pollution assessment and absorption device provided in Embodiment 3 is further optimized. The gas extraction mechanism 3 includes a motor 31 installed in the middle of the absorption tower body 1. The output end of the motor 31 is fixedly connected to a fan impeller 32, and the fan impeller 32 is adapted to the internal space of the absorption tower body 1.

[0066] When the motor 31 is started, the fan impeller 32 rotates to create negative pressure, drawing the waste gas into the main body 1 of the absorption tower.

[0067] Example 5

[0068] The waste gas environmental pollution assessment absorption device provided in Embodiment 4 is further optimized. The filter component 5 includes a dry adsorption module disposed inside the absorption tower body 1. The dry adsorption module can slide into or out relative to the absorption tower body 1 to replace the dry adsorption module.

[0069] The dry absorption module includes a filter layer 51, an adsorption layer 52, and a solid adsorption medium 53. The filter layer 51 has a mesh structure to intercept particulate matter and dust in the exhaust gas. The adsorption layer 52 is filled with at least one of modified activated carbon, zeolite molecular sieve, or impregnated activated carbon to adsorb VOCs or odor molecules. The solid adsorption medium 53 has a honeycomb adsorbent structure with the pores of the honeycomb adsorbent parallel to the airflow direction. The solid adsorption medium 53 is wrapped in a breathable filter bag or non-woven bag and placed in the main body 1 of the absorption tower.

[0070] Specifically, the dry absorption module is installed using a sliding plug-in method, which facilitates replacement and maintenance. After the exhaust gas is detected, it enters the dry absorption module. The filter layer 51 has a mesh structure to intercept fine particles and dust that may have been missed by the previous stage. The adsorption layer 52 is filled with at least one of modified activated carbon, zeolite molecular sieve, or impregnated activated carbon to adsorb VOCs or odor molecules. During this process, harmful gas molecules are adsorbed on the surface of the porous material, and the purified gas is discharged from the purified gas outlet 12 at the bottom.

[0071] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0072] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A waste gas environmental pollution assessment and absorption device, characterized in that, It includes: The absorption tower body (1) is provided with a waste gas inlet (11) and a purified gas outlet (12). The absorption conduit (2), which is connected to the inlet end of the exhaust gas inlet (11), can extend and retract relative to the main body (1) of the absorption tower to the exhaust gas position; An extraction mechanism (3) is provided in the middle of the main body (1) of the absorption tower for extracting waste gas; The detection unit (4) is arranged sequentially inside the main body (1) of the absorption tower along the airflow direction of the exhaust gas inlet (11); A filter assembly (5) is installed at the bottom of the absorption tower body (1) to purify the exhaust gas; The sampling unit (6) is threaded to the side wall of the absorption tower body (1) for extracting waste gas for sampling and retention; The absorption conduit (2) includes a hose (21) fixedly connected to the exhaust gas inlet (11) and a filter cylinder (22) fixedly connected to one end of the hose (21). A plastic retaining ring (13) is also installed on the side wall of the absorption tower body (1). The filter cylinder (22) can be detachably snapped into the inside of the plastic retaining ring (13). The filter cylinder (22) is composed of two open cylindrical threads connected together. One cylinder has a spiral heating plate (23) inside, and the other cylinder has a filter screen (24) inside.

2. The waste gas environmental pollution assessment and absorption device according to claim 1, characterized in that, The detection unit (4) includes: A photoionization detector (41) is used to detect the concentration of total volatile organic compounds (TVOC); A non-dispersive infrared sensor (42) is used to detect the concentrations of carbon monoxide, carbon dioxide and methane; A laser scattering particulate sensor (43) is used to monitor the concentrations of PM2.5, PM10 and total suspended particulate matter.

3. The waste gas environmental pollution assessment and absorption device according to claim 1, characterized in that, The air extraction mechanism (3) includes a motor (31) installed in the middle of the absorption tower body (1). The output end of the motor (31) is fixedly connected to a fan impeller (32), and the fan impeller (32) is adapted to the internal space of the absorption tower body (1).

4. The waste gas environmental pollution assessment and absorption device according to claim 1, characterized in that, The filter assembly (5) includes a dry adsorption module disposed inside the absorption tower body (1), which can slide into or out of the absorption tower body (1) to replace the dry adsorption module.

5. The waste gas environmental pollution assessment and absorption device according to claim 4, characterized in that, The dry absorption module includes a filter layer (51), an adsorption layer (52), and a solid adsorption medium (53). The filter layer (51) has a mesh structure for intercepting particulate matter and dust in the exhaust gas. The adsorption layer (52) is filled with at least one of modified activated carbon, zeolite molecular sieve, or impregnated activated carbon for adsorbing VOCs or odor molecules. The solid adsorption medium (53) has a honeycomb adsorbent structure, and the pore direction of the honeycomb adsorbent is parallel to the airflow direction.

6. The waste gas environmental pollution assessment and absorption device according to claim 1, characterized in that, The sampling unit (6) includes a sampling tube (61) and a piston (62) that is slidably inserted into the inner wall of the sampling tube (61). One end of the sampling tube (61) is provided with an on / off valve (63), and one end of the on / off valve (63) is threadedly connected to the through hole of the side wall of the absorption tower body (1).

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