Rapid waste gas component analysis equipment for environment detection

Abstract

The utility model relates to the technical field of waste gas detection, and discloses a waste gas component rapid analysis device for environment detection, which comprises a box body and a filter assembly, the filter assembly is connected to the side surface of the box body through a screw, the inside of the box body is connected with a waste gas analysis host through a screw, and the bottom of the box body is connected with a fan I through a screw; an air outlet of the first fan is connected with a fan cover through screws, one end of the fan cover is fixedly connected with an air pipe, one end of the air pipe is connected with a testing bin, and a PID sensor, an NO2 sensor and an SO2 sensor are arranged in the testing bin. According to the utility model, the detected gas is extracted by the fan II and enters the filter assembly, the HEPA efficient filter plate lined in the assembly can effectively filter particulate matters in the gas, and the activated carbon box can adsorb harmful components such as volatile organic compounds, so that the discharged gas meets the environmental protection standard through the multi-stage filtering treatment, and the environmental protection effect is good. And no secondary pollution is caused to the environment.

Description

Technical Field

[0001] This utility model relates to the field of waste gas detection technology, specifically to a rapid analysis device for waste gas components used in environmental monitoring. Background Technology

[0002] With the acceleration of industrialization and urbanization, emissions from industrial production, transportation, and other sectors have become one of the main sources of air pollution. The volatile organic compounds, nitrogen oxides, sulfur oxides (SOx), and particulate matter contained in these emissions not only damage the ecological environment but also directly harm human health. Against this backdrop, rapid and accurate analysis of emissions composition is a core prerequisite for assessing pollution levels, tracing pollution sources, and optimizing treatment solutions. It is also a key technological support for achieving the digital transformation of environmental supervision.

[0003] According to a search, Chinese patent document publication number CN222318907U discloses an exhaust gas analysis device for environmental monitoring. Through the combined use of a gas chamber, exhaust port, fixed pipe, rotating ring, adapter ring, connecting rod, and mounting claw, the device facilitates the replacement of the gas chamber after it accumulates to a certain level, preventing the accumulation of harmful gas deposits inside from affecting the monitoring data, improving the accuracy of data monitoring, and facilitating the treatment of various harmful gases in the air by monitoring personnel.

[0004] However, in actual use, the aforementioned exhaust gas analysis equipment accumulates the detected exhaust gas inside the chamber, while the monitoring chip used to detect the exhaust gas composition is installed inside the chamber. This means that during exhaust gas detection, the previously sampled gas remains inside the chamber, and even if subsequent gas enters the chamber, it will mix with the previous gas, thus affecting the accuracy of gas detection. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a rapid analysis device for waste gas composition in environmental monitoring. It has the advantages of performing multi-stage filtration on sampled waste gas without affecting the accuracy of gas detection, thus preventing the sampled waste gas from being directly discharged into the environment, thereby solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a rapid analysis device for waste gas composition in environmental monitoring, comprising a housing and a filter assembly. The filter assembly is connected to the side of the housing by screws. An waste gas analysis host is connected to the inside of the housing by screws. A fan is connected to the bottom of the housing by screws. A fan shroud is connected to the air outlet of the fan by screws. A duct is fixedly connected to one end of the shroud. A test chamber is connected to one end of the duct. A PID sensor, an NO2 sensor, and an SO2 sensor are installed inside the test chamber. A bracket is clamped to the outer surface of the test chamber. A cone is threaded to one end of the test chamber. An electric valve is fixedly connected to one end of the cone. A second fan is connected to one end of the electric valve by screws.

[0009] The filter assembly includes a housing, an inner liner slidably connected to the inner wall of the housing, a HEPA high-efficiency filter plate inserted into the inner liner, and an activated carbon box slidably connected to the inner liner.

[0010] Preferably, an air inlet is provided through the bottom of the housing, and the air inlet of the first fan is connected to the air inlet at the bottom of the housing.

[0011] Preferably, the PID sensor, NO2 sensor, and SO2 sensor are connected to the exhaust gas analysis host via wires, and a bracket is fixedly connected to the inner wall of the housing.

[0012] Preferably, an air outlet is provided through the side of the housing, the exhaust port of the second fan is connected to the air outlet of the housing, and a sleeve is fixedly connected to the air outlet of the housing, and the sleeve is connected to the housing by screws.

[0013] Preferably, one end of the liner is fixedly connected to a pull rod, and a rectangular groove is formed on the top surface of the liner, into which a HEPA high-efficiency filter plate is inserted.

[0014] Preferably, the exhaust gas analysis host is equipped with a gas analysis module and an alarm module, and an antenna is connected to the top of the housing by screws.

[0015] Compared with the prior art, this utility model provides a rapid analysis device for waste gas composition in environmental monitoring, which has the following beneficial effects:

[0016] 1. This utility model uses a fan to allow outside gas to enter the test chamber sequentially through the air inlet, hood, and duct of the housing. A PID sensor, NO2 sensor, and SO2 sensor detect volatile organic compounds, nitrogen dioxide, sulfur dioxide, and other components, respectively, and transmit the data to the exhaust gas analysis host. The gas analysis module within the host processes and analyzes the data to obtain specific information about the exhaust gas components. After detection, a second fan promptly extracts the gas from the test chamber to prevent the mixing of new and old gases from affecting the accuracy of subsequent detections, ensuring the purity and freshness of the gas sample and improving the reliability of the detection data.

[0017] 2. In this utility model, the gas after detection is drawn into the filter assembly by the second fan. The HEPA high-efficiency filter plate inside the assembly can effectively filter particulate matter in the gas, and the activated carbon box can adsorb harmful components such as volatile organic compounds. After such multi-stage filtration, the discharged gas meets environmental protection standards and will not cause secondary pollution to the environment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the box of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the test chamber and filter components in the structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the explosive decomposition of the filter component in the structure of this utility model.

[0022] The components include: 1. Housing; 2. Exhaust gas analysis unit; 3. Filter assembly; 31. Shell; 32. Liner; 33. HEPA high-efficiency filter plate; 34. Activated carbon box; 35. Pull rod; 4. Fan 1; 5. Fan cover; 6. Air duct; 7. Test chamber; 8. PID sensor; 9. NO2 sensor; 10. SO2 sensor; 11. Bracket; 12. Cone; 13. Electric valve; 14. Fan 2; 15. Sleeve; 16. Antenna. Detailed Implementation

[0023] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4A rapid analysis device for exhaust gas composition in environmental monitoring includes a housing 1 and a filter assembly 3. The filter assembly 3 is connected to the side of the housing 1 by screws. An exhaust gas analysis host 2 is connected to the inside of the housing 1 by screws. A fan 4 is connected to the bottom of the housing 1 by screws. A fan hood 5 is connected to the air outlet of the fan 4 by screws. A duct 6 is fixedly connected to one end of the fan hood 5. A test chamber 7 is connected to one end of the duct 6. A PID sensor 8, an NO2 sensor 9, and an SO2 sensor 10 are installed inside the test chamber 7. A bracket 11 is clamped to the outer surface of the test chamber 7. A cone 12 is threaded to one end of the test chamber 7. An electric valve 13 is fixedly connected to one end of the cone 12. A fan 14 is connected to one end of the electric valve 13 by screws.

[0025] The filter assembly 3 includes a housing 31, an inner liner 32 slidably connected to the inner wall of the housing 31, a HEPA high-efficiency filter plate 33 inserted into the inner liner 32, and an activated carbon box 34 slidably connected to the inner liner 32.

[0026] Specifically, an air inlet is provided through the bottom of the housing 1, and the air inlet of the fan 4 is connected to the air inlet at the bottom of the housing 1.

[0027] Specifically, the PID sensor 8, NO2 sensor 9, and SO2 sensor 10 are connected to the exhaust gas analysis host 2 via wires, and a bracket 11 is fixedly connected to the inner wall of the housing 1.

[0028] The advantage is that after the fan is turned on, the outside air enters the hood 5 through the air inlet at the bottom of the box 1, and then enters the test chamber 7 through the air duct 6. The PID sensor 8, NO2 sensor 9 and SO2 sensor 10 in the test chamber 7 start to work. These sensors detect the volatile organic compounds, nitrogen dioxide, sulfur dioxide and other components in the gas respectively, and transmit the detection data to the exhaust gas analysis host 2 through wires. The gas analysis module inside the exhaust gas analysis host 2 processes and analyzes the data to obtain the specific information of the exhaust gas composition.

[0029] Specifically, an air outlet is provided through the side of the housing 1, and the exhaust port of the second fan 14 is connected to the air outlet of the housing 1. A sleeve 15 is fixedly connected to the air outlet of the housing 1, and the sleeve 15 is connected to the housing 31 by screws.

[0030] Specifically, a pull rod 35 is fixedly connected to one end of the liner 32, and a rectangular groove is opened on the top surface of the liner 32, into which a HEPA high-efficiency filter plate 33 is inserted.

[0031] The advantages are that after the sampled gas is tested and analyzed, the electric valve 13 is opened by controlling the exhaust gas analyzer 2. At this time, the fan 14 is started to draw the gas in the test chamber 7 through the cone 12 into the housing 31. On the one hand, the gas after testing can be discharged in time to avoid gas residue and accumulation in the test chamber 7, prevent the mixing of new and old gases from affecting the accuracy of subsequent tests, and ensure that the gas sample tested each time is relatively pure and fresh, thereby improving the reliability of the test data. On the other hand, the gas entering the housing 31 can be treated by the filter assembly 3. The HEPA high-efficiency filter plate 33 in the housing liner 32 can effectively filter out particulate matter in the gas, and the activated carbon box 34 can adsorb harmful components in the gas, such as volatile organic compounds. After such multi-stage filtration, the discharged gas meets environmental protection standards and will not cause secondary pollution to the environment.

[0032] Specifically, the exhaust gas analysis host 2 is equipped with a gas analysis module and an alarm module, and the top of the housing 1 is connected to the antenna 16 by screws.

[0033] The advantages are that the gas analysis module of the exhaust gas analysis host 2 is responsible for processing the data from various sensors. It analyzes and calculates the exhaust gas composition data collected by the PID sensor 8, NO2 sensor 9 and SO2 sensor 10 in the test chamber 7 to obtain specific information on various components in the exhaust gas, providing data support for subsequent work. The alarm module is linked with the gas analysis module. Once the data obtained by the gas analysis module exceeds the preset safety threshold, the alarm module will issue an alarm. The antenna 16 undertakes the important task of data transmission and remote interaction. It can send the detection data to the remote terminal, which makes it convenient for supervisors to monitor the exhaust gas emission situation in real time and realize digital management.

[0034] In use, firstly, fan 4 is turned on, and outside gas enters the hood 5 through the air inlet at the bottom of the housing 1, and then enters the test chamber 7 through the air duct 6. Subsequently, the PID sensor 8, NO2 sensor 9, and SO2 sensor 10 inside the test chamber 7 start working to detect volatile organic compounds, nitrogen dioxide, sulfur dioxide, and other components in the gas, and transmit the detection data to the exhaust gas analysis host 2 through wires. Then, the gas analysis module inside the exhaust gas analysis host 2 processes and analyzes the data to obtain specific information about the exhaust gas composition. After the detection is completed, the exhaust gas analysis host 2 controls the electric valve 13 to open, and starts fan 14 to draw the gas from the test chamber 7, which enters the housing 31 through the cone 12. Particulate matter is filtered by the HEPA high-efficiency filter plate 33, and harmful components are adsorbed by the activated carbon box 34.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid analysis device for exhaust gas composition in environmental monitoring, comprising a housing (1) and a filter assembly (3), wherein the filter assembly (3) is connected to the side of the housing (1) by screws, characterized in that: The interior of the housing (1) is connected to the exhaust gas analysis host (2) by screws, and the bottom of the housing (1) is connected to the fan (4) by screws. The air outlet of the fan (4) is connected to the hood (5) by screws. One end of the hood (5) is fixedly connected to the air duct (6). One end of the air duct (6) is connected to the test chamber (7). The test chamber (7) is equipped with a PID sensor (8), a NO2 sensor (9) and an SO2 sensor (10). The outer surface of the test chamber (7) is clamped with a bracket (11), and one end of the test chamber (7) is threadedly connected to a cone (12). One end of the cone (12) is fixedly connected to an electric valve (13), and one end of the electric valve (13) is connected to a fan (14) by screws. The filter assembly (3) includes a housing (31), an inner liner (32) is slidably connected to the inner wall of the housing (31), a HEPA high-efficiency filter plate (33) is inserted into the inner liner (32), and an activated carbon box (34) is slidably connected to the inner liner (32).

2. The rapid analysis device for waste gas composition in environmental monitoring according to claim 1, characterized in that: An air inlet is provided through the bottom of the box (1), and the air inlet of the fan (4) is connected to the air inlet at the bottom of the box (1).

3. The rapid analysis device for waste gas composition in environmental monitoring according to claim 1, characterized in that: The PID sensor (8), NO2 sensor (9) and SO2 sensor (10) are connected to the exhaust gas analysis host (2) by wires, and a bracket (11) is fixedly connected to the inner wall of the housing (1).

4. The rapid analysis device for waste gas composition in environmental monitoring according to claim 1, characterized in that: An air outlet is provided through the side of the box (1). The exhaust port of the second fan (14) is connected to the air outlet of the box (1). A sleeve (15) is fixedly connected to the air outlet of the box (1). The sleeve (15) is connected to the shell (31) by screws.

5. The rapid analysis device for waste gas composition in environmental monitoring according to claim 1, characterized in that: One end of the liner (32) is fixedly connected to a pull rod (35), and a rectangular groove is provided on the top surface of the liner (32), into which a HEPA high-efficiency filter plate (33) is inserted.

6. The rapid analysis device for waste gas composition in environmental monitoring according to claim 1, characterized in that: The exhaust gas analysis host (2) is equipped with a gas analysis module and an alarm module, and the top of the box (1) is connected to an antenna (16) by screws.

Images