TSP detection equipment
By introducing a combination of diaphragm pump and heating dehumidification chamber into the TSP detection equipment, the problem of poor sampling effect in harsh environments is solved, air drying and data accuracy are ensured, and continuous online monitoring of air quality is achieved.
Patent Information
- Application Number
- CN202420606078.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-03-27
AI Technical Summary
Existing TSP detection equipment has poor sampling effect in harsh environments, especially the inclusion of water droplets caused by humid air affects the accuracy of the detection data.
A TSP detection device is designed, including a diaphragm pump, light scattering detector, controller, power supply and network module. It can dry the air by heating the dehumidification chamber and evaporator to avoid interference from water droplets, and ensure that it is achieved through the sampling head and filter. Data accuracy.
It realizes air drying in harsh environments, ensures data accuracy of the light scattering detector, and supports continuous online monitoring of air quality.
Smart Images
Figure CN222232286U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of TSP detection, in particular to a TSP detection device. Background Art
[0002] TSP (total suspended particulate) refers to particles with an aerodynamic equivalent diameter of ≤100μm suspended in the air. The composition of TSP in the atmosphere is very complex and varies greatly. Smoke from coal combustion, dust in industrial waste gas and ground dust are important sources of total suspended particulates in the atmosphere. The smaller the particles, the more harmful they are to the human body. Particles with a diameter of more than 10 microns can be absorbed by nasal hair and can also be expelled from the human body through coughing, while inhalable particles with a diameter of less than 10 microns can be deposited in the lungs with human breathing and can even enter the alveoli and blood. The particles with the highest deposition rate in the lungs are particles with a diameter of about 1 micron. These particles are deposited on the alveoli, damaging the alveoli and mucosa, causing chronic fibrosis of the lung tissue, leading to cor pulmonale, aggravating asthma, and causing a series of diseases such as chronic nasopharyngitis and chronic bronchitis.
[0003] However, the outdoor environment is relatively harsh and there are large differences between regions. Therefore, the TSP detection equipment needs to have strong adaptability. In particular, it is necessary to ensure the long-term accuracy of the data in various harsh environments. Existing patents such as publication number CN209727553U disclose a TSP sampler, including a TSP sampler body, the outer sleeve of the TSP sampler body is provided with a protective cover, the top of the protective cover is provided with a first through hole, the bottom of the protective cover is provided with a second through hole, the interior of the first through hole is fixedly installed with a first flexible sealing rubber ring, and the interior of the second through hole is fixedly installed with a second flexible sealing rubber ring. However, the TSP sampler body is located in the protective cover and its contact with the outside air is limited, and the sampling effect is not good. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a TSP detection device, which overcomes the deficiencies of the prior art and can effectively avoid excessive water droplets being mixed in due to humid air, thereby affecting the accuracy of data subsequently detected by a light scattering detector.
[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0006] A TSP detection device comprises a shell, wherein a diaphragm pump, a light scattering detector, a controller, a power supply and a network module are installed in the inner cavity of the shell, the input end of the diaphragm pump is connected to one end of a sampling tube, the other end of the sampling tube passes through the upper surface of the shell and is provided with a sampling head, the output end of the diaphragm pump is connected to one end of a heating and dehumidification cavity, the detection end of the light scattering detector is arranged at the other end of the heating and dehumidification cavity, and the outlet end of the heating and dehumidification cavity is connected to a filter; an evaporator is arranged in the heating and dehumidification cavity;
[0007] The signal output end of the light scattering detector is connected to the signal input end of the controller, the control port of the controller is connected to the diaphragm pump, the controller communicates with the terminal through a network module, and the diaphragm pump, the light scattering detector and the controller are all powered by a power supply.
[0008] Preferably, a wind direction sensor, a wind direction sensor and a temperature and humidity sensor are respectively installed on the upper surface of the shell, and the signal output ends of the wind direction sensor, the wind direction sensor and the temperature and humidity sensor are all connected to the signal input end of the controller through wires.
[0009] Preferably, the sampling head comprises a lower connector and an upper connector, the lower connector and the upper connector are connected via a threaded rod, and a filter mesh tube is installed between the lower connector and the upper connector.
[0010] Preferably, the light scattering detector comprises a TSP detection module for detecting TSP dust particle parameters, a PM2.5 detection module for detecting PM2.5 dust particle parameters and a PM10 detection module for detecting PM10 dust particle parameters.
[0011] Preferably, a rain cap is installed on the upper end of the sampling head.
[0012] The utility model provides a TSP detection device. It has the following beneficial effects: by controlling the start of the diaphragm pump, air can be collected through the sampling head at the end of the sampling tube, and the collected air is transported along the sampling tube to the heating and dehumidification cavity, and the evaporator in the heating and dehumidification cavity is used to fully dry the collected air, so as to effectively avoid excessive water droplets caused by humid air, which in turn affects the accuracy of the data subsequently detected by the light scattering detector. The dried air flows to the outlet end of the heating and dehumidification cavity, at which time the particulate matter in the air can be detected by the light scattering detector, and the detection data can be transmitted to the controller, and then the detected particle information can be transmitted to the external terminal through the network module, so as to realize continuous online monitoring of air quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings required for describing the prior art are briefly introduced below.
[0014] Figure 1 A schematic diagram of the structure of the utility model;
[0015] Figure 2 A schematic diagram of the planar structure of the utility model;
[0016] Figure 3 A schematic diagram of the cross-sectional structure of a sampling head in Embodiment 3 of the present utility model;
[0017] Description of the numbers in the figure:
[0018] 1. Shell; 2. Diaphragm pump; 3. Light scattering detector; 4. Controller; 5. Power supply; 6. Network module; 7. Sampling tube; 8. Heating and dehumidifying cavity; 81. Evaporator; 9. Filter; 10. Wind speed sensor; 11. Wind direction sensor; 12. Temperature and humidity sensor; 13. Lower connector; 14. Upper connector; 15. Threaded rod; 16. Filter mesh tube; 17. Rain cap. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention.
[0020] Embodiment 1, as Figures 1 to 3 As shown, a TSP detection device comprises a housing 1, wherein a diaphragm pump 2, a light scattering detector 3, a controller 4, a power supply 5 and a network module 6 are installed in the inner cavity of the housing 1, an input end of the diaphragm pump 2 is connected to one end of a sampling tube 7, the other end of the sampling tube 7 passes through the upper surface of the housing 1 and is provided with a sampling head, an output end of the diaphragm pump 2 is connected to one end of a heating and dehumidification cavity 8, a detection end of the light scattering detector 3 is provided at the other end of the heating and dehumidification cavity 8, and an outlet end of the heating and dehumidification cavity 8 is connected to a filter 9; an evaporator 81 is provided in the heating and dehumidification cavity 8;
[0021] The signal output end of the light scattering detector 3 is connected to the signal input end of the controller 4, the control port of the controller 4 is connected to the diaphragm pump 2, the controller 4 communicates with the terminal through the network module 6, and the diaphragm pump 2, the light scattering detector 3 and the controller 4 are all powered by the power supply 5.
[0022] Working principle:
[0023] When in use, the diaphragm pump 2 is controlled to start, so that air can be collected through the sampling head at the end of the sampling tube 7, and the collected air is transported to the heating and dehumidification cavity 8 along the sampling tube 7, and the evaporator 81 in the heating and dehumidification cavity 8 is used to fully dry the collected air, so as to effectively avoid excessive water droplets caused by humid air, which in turn affects the accuracy of the data subsequently detected by the light scattering detector 3. The dried air flows to the outlet of the heating and dehumidification cavity 8, at which time the light scattering detector 3 can be used to detect the particles in the air, and the detection data can be transmitted to the controller 4, which then processes and analyzes the data, and then transmits the detected particle information to the external terminal through the network module 6, so as to realize continuous online monitoring of air quality.
[0024] The air in the heating and dehumidification cavity 8 will also flow into the filter 9 from the outlet end of the heating and dehumidification cavity 8, thereby filtering the air through the filter 9 to prevent the air from being directly discharged and affecting the internal components of the shell 1.
[0025] Embodiment 2, as a further preferred solution of embodiment 1, a wind speed sensor 10, a wind direction sensor 11 and a temperature and humidity sensor 12 are respectively installed on the upper surface of the housing 1, and the signal output ends of the wind speed sensor 10, the wind direction sensor 11 and the temperature and humidity sensor 12 are connected to the signal input end of the controller 4 through wires. By setting the wind speed sensor 10 to monitor the dust wind speed and the wind direction sensor 11 to monitor the dust wind direction, it is convenient to formulate a corresponding dust reduction plan in real time; setting the temperature and humidity sensor 12 is convenient for real-time detection of the designated position, so as to take preventive measures in advance.
[0026] Embodiment three, as Figure 3 As shown, as a further preferred solution of the first embodiment, the sampling head includes a lower connector 13 and an upper connector 14, the lower connector 13 and the upper connector 14 are connected by a threaded rod 15, and a filter mesh tube 16 is installed between the lower connector 13 and the upper connector 14. In this embodiment, the filter mesh tube 16 is made of a sintered mesh, and the lower connector 13 and the upper connector 14 cooperate with each other to clamp the filter mesh tube 16, and the filter mesh tube 16 can be blocked by the filter mesh tube 16 to prevent large particles of impurities (such as leaves, cotton wool, etc.) in the air from entering the sampling tube 7 to block the sampling tube 7. After use, the upper connector 14 can be separated from the lower connector 13 by rotating the threaded rod 15, so that the filter mesh tube 16 can be cleaned.
[0027] Embodiment 4, as a further preferred embodiment of embodiment 1, the light scattering detector 3 includes a TSP detection module for detecting TSP dust particle parameters, a PM2.5 detection module for detecting PM2.5 dust particle parameters, and a PM10 detection module for detecting PM10 dust particle parameters. In this embodiment, when the light scattering detector 3 detects that a certain parameter in the air exceeds the initial set value, a signal can be transmitted to the terminal through the controller 4 and the network module 6 to remind the person in charge to make corresponding rectifications.
[0028] Embodiment 5, as a further preferred embodiment of embodiment 1, a rain cap 17 is installed on the upper end of the sampling head. The rain cap 17 can prevent rainwater from dripping directly from the upper end of the sampling head into the sampling tube 7, thereby affecting the accuracy of the data detected by the subsequent light scattering detector 3.
[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A TSP detection device, characterized in that: The invention comprises a shell (1), wherein a diaphragm pump (2), a light scattering detector (3), a controller (4), a power supply (5) and a network module (6) are installed in the inner cavity of the shell (1); the input end of the diaphragm pump (2) is connected to one end of a sampling tube (7); the other end of the sampling tube (7) passes through the upper surface of the shell (1) and is provided with a sampling head; the output end of the diaphragm pump (2) is connected to one end of a heating and dehumidifying cavity (8); the detection end of the light scattering detector (3) is arranged at the other end of the heating and dehumidifying cavity (8); the outlet end of the heating and dehumidifying cavity (8) is connected to a filter (9); and an evaporator (81) is arranged in the heating and dehumidifying cavity (8); The signal output end of the light scattering detector (3) is connected to the signal input end of the controller (4), the control port of the controller (4) is connected to the diaphragm pump (2), the controller (4) communicates with the terminal via a network module (6), and the diaphragm pump (2), the light scattering detector (3) and the controller (4) are all powered by a power supply (5).
2. A TSP detection device according to claim 1, characterized in that: A wind speed sensor (10), a wind direction sensor (11) and a temperature and humidity sensor (12) are respectively mounted on the upper surface of the housing (1); signal output ends of the wind speed sensor (10), the wind direction sensor (11) and the temperature and humidity sensor (12) are connected to a signal input end of the controller (4) via wires.
3. A TSP detection device according to claim 1, characterized in that: The sampling head comprises a lower connecting head (13) and an upper connecting head (14), wherein the lower connecting head (13) and the upper connecting head (14) are connected via a threaded rod (15), and a filter mesh tube (16) is installed between the lower connecting head (13) and the upper connecting head (14).
4. A TSP detection device according to claim 1, characterized in that: The light scattering detector (3) comprises a TSP detection module for detecting TSP dust particle parameters, a PM2.5 detection module for detecting PM2.5 dust particle parameters, and a PM10 detection module for detecting PM10 dust particle parameters.
5. A TSP detection device according to claim 1, characterized in that: A rain shield cap (17) is installed on the upper end of the sampling head.