Portable multifunctional atmospheric pollutant detection device

Abstract

The utility model discloses a portable multifunctional atmospheric pollutant detection device, which relates to the technical field of atmospheric pollutant detection, and comprises a box body, an intake and exhaust type atmospheric sampling device, an atmospheric pollutant detection module and a detection result display module, the box body is provided with an air inlet and an air outlet, the box body is provided with an air inlet and an air outlet, and the detection result display module is provided with an air inlet and an air outlet. The intake and exhaust type atmosphere sampling device comprises an intake pipe, a micro pump, an intake electromagnetic valve, a sampling box, an exhaust electromagnetic valve and an exhaust pipe. The device adopts a box body design, is small in size, is convenient to carry and transport, and is suitable for various on-site environment monitoring occasions. The air intake and exhaust type air sampling device adopts a relatively closed air intake and exhaust design, a sensor is also prevented from being in direct contact with ambient atmosphere through closed detection, the sensor can be effectively prevented from being interfered under high humidity, the interference of atmospheric airflow can also be effectively avoided, result detection of atmospheric pollutants is realized through the detection analysis module, and the detection accuracy is improved. And finally, a detection result is displayed through a detection result display module.

Description

Technical Field

[0001] This utility model relates to the field of atmospheric pollutant detection technology, and in particular to a portable multifunctional atmospheric pollutant detection device. Background Technology

[0002] Currently, air pollutant detection mainly relies on sensor technology. For example, electrochemical sensors are used to detect gases such as CO and NO2; optical sensors (such as NDIR and laser spectroscopy) are used to detect PM2.5 and VOCs; Fourier transform infrared spectroscopy (FTIR) can achieve multi-component detection. Gas chromatography-mass spectrometry (GC-MS) achieves accuracy at the ppb level.

[0003] The aforementioned detection methods suffer from poor portability. Methods such as Fourier transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GC-MS) have equipment weighing over 20 kg and rely on a fixed power supply, resulting in poor portability.

[0004] Furthermore, the sensor's error exceeds 30% when humidity is >80%, and most devices fail below -20℃, indicating low environmental adaptability. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a portable multifunctional air pollutant detection device. The technical solution is as follows:

[0006] A portable multifunctional air pollutant detection device includes a housing, an intake and exhaust type air sampling device, an air pollutant detection module, and a detection result display module. The housing has an air inlet and an exhaust outlet. The intake and exhaust type air sampling device includes an intake pipe, a micro pump, an intake solenoid valve, a sampling box, an exhaust solenoid valve, and an exhaust pipe. One end of the intake pipe is connected to the air inlet of the housing, and the other end is connected to the inlet of the sampling box through the intake solenoid valve. The outlet of the sampling box is connected to the exhaust outlet of the housing in sequence through the micro pump, the exhaust solenoid valve, and the exhaust pipe. The air pollutant detection module includes an electrochemical sensor, an optical sensor, a chip-based detection and analysis module, and a chip-based detection controller. The inner wall of the sampling box has two sensor mounting cavities. The electrochemical sensor and the optical sensor are respectively installed in the two sensor mounting cavities, and the sensor heads are located inside the sampling box. The detection and analysis module is communicatively connected to the electrochemical sensor and the optical sensor. The detection controller controls the actions of the micro pump, the intake solenoid valve, the exhaust solenoid valve, the electrochemical sensor, and the optical sensor. The detection result display module communicates and interacts with the detection and analysis module to exchange detection result data and displays the detection results based on the detection result data.

[0007] Optionally, it also includes a battery pack, which is installed inside the housing and supplies power to each of the electrical components.

[0008] By adopting the above technical solution, the device adopts a box design. Since it only uses electrochemical sensors and optical sensors to detect air pollutants, it can be powered by a battery pack. The battery pack can be a smaller lithium battery, which is compact, easy to carry and transport, and suitable for various on-site environmental monitoring occasions, such as environmental supervision and industrial emission detection.

[0009] The intake and exhaust type atmospheric sampling device adopts a relatively closed intake and exhaust design. When sampling is required, the controller only needs to start the micro pump, intake solenoid valve and exhaust solenoid valve. After about a few seconds, the air from the outside intake port can be drawn into the sampling box. Then, the intake solenoid valve and exhaust solenoid valve are closed, and the electrochemical sensor and optical sensor are turned on to detect atmospheric pollutants. The closed detection also avoids the sensor from directly contacting the ambient atmosphere, which can effectively avoid the sensor from being interfered with under high humidity and also effectively avoid the interference of atmospheric airflow. The detection and analysis module realizes the detection of atmospheric pollutants, and finally the detection result display module displays the detection result.

[0010] Optionally, a portable tripod is also included, wherein the bottom of the housing is provided with internal threads and the top of the tripod is provided with connecting threads, and the housing is screwed onto the top of the portable tripod.

[0011] By adopting the above technical solution, the portable tripod can be stored away when not in use. After the staff carries the case to the designated testing location via the shoulder strap, the portable tripod is set up and the bottom of the case is screwed onto the top of the portable tripod, allowing atmospheric testing to be carried out in a more stable state.

[0012] Optionally, the sampling box is placed horizontally, with the sampling box inlet and outlet located at the left and right ends of the sampling box.

[0013] By adopting the above technical solution, the atmospheric flow within the sampling box becomes smoother when the sampling box is placed horizontally, resulting in more accurate atmospheric detection results.

[0014] Optionally, the sampling box can be a cuboid or a cylinder.

[0015] Optionally, the sampling box is made of stainless steel.

[0016] Optionally, the detection and analysis module includes an analog input module, a memory, and a data analysis chip. The analog input module is communicatively connected to the electrochemical sensor and the optical sensor, respectively. The memory is communicatively connected to the analog input module, and the data analysis chip is communicatively connected to the memory.

[0017] By adopting the above technical solution, the analog input module converts the analog signals from the electrochemical sensor and the optical sensor into digital signals and stores them in the memory. The data analysis chip realizes automated detection of air pollutants based on the detection program.

[0018] Optionally, the detection controller includes an instruction buffer and a control chip. The instruction buffer stores control instructions for controlling various components. The control chip is communicatively connected to the instruction buffer and is also communicatively connected to the micro pump, the intake solenoid valve, the exhaust solenoid valve, the electrochemical sensor, and the optical sensor, respectively.

[0019] Optionally, the test result display module is a touch screen.

[0020] By adopting the above technical solution, the control chip can control various components and communicate with the touch screen of the detection result display module, so as to realize the input of control actions or modification of parameters by operating the touch screen.

[0021] Optionally, the air pollutant detection module and the detection result display module are implemented based on a computer with a touch screen.

[0022] In summary, this utility model has at least one of the following beneficial technical effects:

[0023] This invention provides a portable, multifunctional air pollutant detection device. The device features a box-like design, is powered by a lithium battery, and is compact in size, making it easy to carry and transport. It is suitable for various on-site environmental monitoring applications, such as environmental supervision and industrial emission detection.

[0024] The intake and exhaust type atmospheric sampling device adopts a relatively closed intake and exhaust design. The closed detection also avoids the sensor from directly contacting the ambient atmosphere, which can effectively avoid the sensor from being interfered with under high humidity and also effectively avoid the interference of atmospheric airflow. The detection and analysis module realizes the detection of atmospheric pollutants, and finally displays the detection results through the detection result display module. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the internal structure of the housing of a portable multifunctional air pollutant detection device according to this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a portable multifunctional air pollutant detection device with its housing mounted on top of a portable tripod.

[0027] Figure 3 This is a schematic diagram illustrating the communication connection principle of the components of a portable multifunctional air pollutant detection device according to this utility model.

[0028] Explanation of reference numerals in the attached diagram: 1. Housing; 21. Inlet pipe; 22. Micro pump; 23. Inlet solenoid valve; 24. Sampling box; 25. Exhaust solenoid valve; 26. Exhaust pipe; 31. Electrochemical sensor; 32. Optical sensor; 33. Detection and analysis module; 331. Analog input module; 332. Memory; 333. Data analysis chip; 34. Detection controller; 341. Instruction buffer; 342. Control chip; 4. Detection result display module; 5. Battery pack; 6. Portable tripod. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] This utility model discloses a portable multifunctional air pollutant detection device.

[0031] Reference Figures 1-3 Example 1: A portable multifunctional air pollutant detection device includes a housing 1, an intake / exhaust type air sampling device, an air pollutant detection module, and a detection result display module 4. The housing 1 has an air inlet and an exhaust outlet. The intake / exhaust type air sampling device includes an intake pipe 21, a micro pump 22, an intake solenoid valve 23, a sampling box 24, an exhaust solenoid valve 25, and an exhaust pipe 26. One end of the intake pipe 21 is connected to the air inlet of the housing 1, and the other end is connected to the inlet of the sampling box 24 through the intake solenoid valve 23. The outlet of the sampling box 24 is connected to the exhaust outlet of the housing 1 through the micro pump 22, the exhaust solenoid valve 25, and the exhaust pipe 26. The air pollutant detection module includes an electrochemical sensor 31. The sampling box 24 includes an optical sensor 32, a chip-based detection and analysis module 33, and a chip-based detection controller 34. Two sensor mounting cavities are provided on the inner wall of the sampling box 24. The electrochemical sensor 31 and the optical sensor 32 are respectively mounted in the two sensor mounting cavities, and the sensor heads are located inside the sampling box 24. The detection and analysis module 33 is communicatively connected to the electrochemical sensor 31 and the optical sensor 32. The detection controller 34 controls the execution actions of the micro pump 22, the intake solenoid valve 23, the exhaust solenoid valve 25, the electrochemical sensor 31, and the optical sensor 32. The detection result display module 4 communicates and interacts with the detection and analysis module 33 to exchange detection result data, and displays the detection results based on the detection result data.

[0032] Example 2 also includes a battery pack 5, which is installed inside the housing 1 and supplies power to each electrical component.

[0033] The device adopts a box design. Since it only uses electrochemical sensor 31 and optical sensor 32 to detect air pollutants, it can be powered by battery pack 5. Battery pack 5 can be a smaller lithium battery, which is compact, easy to carry and transport, and suitable for various on-site environmental monitoring occasions, such as environmental supervision and industrial emission detection.

[0034] The intake and exhaust type atmospheric sampling device adopts a relatively closed intake and exhaust design. When sampling is required, the controller 34 only needs to start the micro pump 22, intake solenoid valve 23 and exhaust solenoid valve 25 for about 10 seconds to draw the outside air into the sampling box 24. Then, the intake solenoid valve 23 and exhaust solenoid valve 25 are closed, and the electrochemical sensor 31 and optical sensor 32 are turned on to detect atmospheric pollutants. The closed detection also avoids the sensor from directly contacting the ambient atmosphere, which can effectively avoid the sensor from being interfered with under high humidity and also effectively avoid the interference of atmospheric airflow. The detection and analysis module 33 realizes the detection of atmospheric pollutants, and finally the detection result display module 4 displays the detection result.

[0035] Example 3 also includes a portable tripod 6, with an internal thread at the bottom of the housing 1 and a connecting thread at the top of the tripod 6, and the housing 1 is screwed onto the top of the portable tripod 6.

[0036] The portable tripod 6 can be stored away when not in use. After the staff carries the case 1 to the designated testing location via the shoulder strap, the portable tripod 6 is set up and the bottom of the case 1 is screwed onto the top of the portable tripod 6 for atmospheric testing in a more stable state.

[0037] Example 4: The sampling box 24 is placed horizontally, with the inlet and outlet of the sampling box 24 located at the left and right ends of the sampling box 24.

[0038] When the sampling box 24 is placed horizontally, the atmosphere flows more smoothly within the cavity of the sampling box 24, making the atmospheric detection results more accurate.

[0039] Example 5: The sampling box 24 is a cuboid or cylinder.

[0040] Example 6: The sampling box 24 is made of stainless steel.

[0041] Example 7: The detection and analysis module 33 includes an analog input module 331, a memory 332, and a data analysis chip 333. The analog input module 331 is communicatively connected to the electrochemical sensor 31 and the optical sensor 32, respectively. The memory 332 is communicatively connected to the analog input module 331, and the data analysis chip 333 is communicatively connected to the memory 332.

[0042] The analog input module 331 converts the analog signals from the electrochemical sensor 31 and the optical sensor 32 into digital signals and stores them in the memory 332. The data analysis chip 333 realizes automated detection of air pollutants based on the detection program.

[0043] Example 8: The detection controller 34 includes an instruction buffer 341 and a control chip 342. The instruction buffer 341 stores control instructions for controlling various components. The control chip 342 is communicatively connected to the instruction buffer 341 and is communicatively connected to the micro pump 22, the intake solenoid valve 23, the exhaust solenoid valve 25, the electrochemical sensor 31, and the optical sensor 32, respectively.

[0044] Example 9: The detection result display module 4 is a touch screen.

[0045] The control chip 342 can control various components and communicate with the touch screen of the detection result display module 4 to realize control action input or parameter modification by operating the touch screen.

[0046] Example 10: The air pollutant detection module and the detection result display module (4) are implemented based on a computer with a touch screen.

[0047] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made according to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A portable multi-functional atmospheric pollutant detection device, characterized in that: The utility model relates to an air sampling device, and specifically relates to an air sampling device with air inlet and air outlet, air sampling device, air pollutant detection module and detection result display module (4), the air sampling device includes air inlet pipe (21), micro pump (22), air inlet solenoid valve (23), sampling box (24), exhaust solenoid valve (25) and air outlet pipe (26), one end of air inlet pipe (21) is communicated with the air inlet of box (1), and the other end is communicated with the entrance of sampling box (24) through air inlet solenoid valve (23), and the outlet of sampling box (24) is communicated with the air outlet of box (1) through micro pump (22), exhaust solenoid valve (25) and air outlet pipe (26) in proper order, and the air pollutant detection module includes electrochemical sensor (31), optical sensor (32), chip-based detection analysis module (33) and chip-based detection controller (34), two sensor installation cavities are equipped on the inner wall of sampling box (24), electrochemical sensor (31) and optical sensor (32) are installed at two sensor installation cavities respectively, and the sensing head is located in sampling box (24), detection analysis module (33) is connected with electrochemical sensor (31) and optical sensor (32) in communication, and detection controller (34) controls the execution action of micro pump (22), air inlet solenoid valve (23), exhaust solenoid valve (25), electrochemical sensor (31) and optical sensor (32) respectively, and detection result display module (4) communicates and exchanges detection result data with detection analysis module (33), and shows the detection result based on detection result data. 2.The portable multifunctional atmospheric pollutant detection device according to claim 1, characterized in that: It also includes battery pack (5), and the battery pack (5) is installed in the box (1) and powers each electric device respectively. 3.The portable multifunctional atmospheric pollutant detection device according to claim 2, characterized in that: It also includes portable tripod (6), and the bottom of the box (1) is equipped with internal thread, and the top of the tripod (6) is equipped with connecting thread, and the box (1) is screwed and installed on the top of the portable tripod (6).

4. The portable multi-functional atmospheric pollutant detection device according to claim 3, characterized in that: The sampling box (24) is transversely arranged, and the inlet and outlet of the sampling box (24) are located at the left and right ends of the sampling box (24).

5. The portable multi-functional atmospheric pollutant detection device according to claim 4, wherein: The sampling box (24) is a cuboid or a cylinder.

6. The portable multi-functional atmospheric pollutant detection device according to claim 4, wherein: The sampling box (24) is made of stainless steel.

7. The portable multi-functional atmospheric pollutant detection device according to claim 4, wherein: The detection analysis module (33) includes analog input module (331), memory (332) and data analysis chip (333), the analog input module (331) is connected with electrochemical sensor (31) and optical sensor (32) in communication respectively, the memory (332) is connected with the analog input module (331) in communication, and the data analysis chip (333) is connected with the memory (332) in communication. 8.The portable multifunctional atmospheric pollutant detection device according to claim 7, characterized in that: The detection controller (34) includes instruction buffer (341) and control chip (342), the instruction buffer (341) stores control instructions for controlling each component, the control chip (342) is connected with the instruction buffer (341) in communication and is connected with micro pump (22), air inlet solenoid valve (23), exhaust solenoid valve (25), electrochemical sensor (31) and optical sensor (32) in communication respectively. 9.The portable multifunctional atmospheric pollutant detection device according to claim 8, characterized in that: The detection result display module (4) is a touch display screen. 10.The portable multifunctional atmospheric pollutant detection device according to claim 8, characterized in that: The atmospheric pollutant detection module and the detection result display module (4) are implemented based on a computer with a touch display screen.

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