Anti-fog particulate matter monitoring module and equipment

Abstract

The utility model relates to the technical field of particulate matter monitoring, in particular to an anti-fog particulate matter monitoring module and equipment, which comprises a substrate and a shell which are mutually covered, a passage chamber is formed between the shell and the substrate, the passage chamber comprises an airflow passage and a light passage, a temperature control module is arranged in the airflow passage, and the temperature control module is connected with the light passage. The temperature control module can control the temperature of airflow in the airflow channel; the temperature control module is arranged in the air flow channel, the air flow is heated through the temperature control module, water mist in the air flow is atomized, the water mist is prevented from entering the darkroom along with the air flow, the scattering effect on laser is avoided, and therefore the purposes of eliminating the water mist and improving the quality of the darkroom are achieved. And the technical effects of misreport caused by water mist, incapability of accurately monitoring the concentration of the particulate matters in the air or low monitoring precision caused by the water mist are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of particle monitoring, in particular to an anti-fog type particle monitoring module and equipment. Background Art

[0002] The detection principle of the optical particle monitoring module is: a group of laser transmitters and receivers are set inside the dark sensor. The laser transmitter and receiver are not in a straight line. Under normal circumstances, the laser receiver cannot receive the laser emitted by the laser transmitter. When there are particles in the air, the laser receiver will receive the scattered laser due to the scattering effect of the particles on the laser. By identifying the light intensity received by the laser receiver, the concentration of particles in the air can be indirectly identified.

[0003] Currently available optical particle monitoring sensors use the scattering effect of particles in the air on lasers to achieve indirect perception and monitoring of particle concentrations. However, it is not only particles in the air that can scatter lasers, but water mist can also scatter lasers. For example, in foggy weather, due to the influence of water mist in the air, optical particle monitoring sensors will not be able to accurately monitor the concentration of particles in the air.

[0004] It should be noted that the information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to a person skilled in the art. Utility Model Content

[0005] In order to solve the above-mentioned technical problem that the concentration of particulate matter in the air cannot be accurately monitored due to the influence of water mist, the utility model provides an anti-fog type particulate matter monitoring module, which includes a substrate and a shell, the shell covering the substrate, a passage chamber formed between the shell and the substrate, the passage chamber including an airflow passage and a light passage, the airflow passage and the light passage intersect to form a dark chamber, the dark chamber is respectively connected to the airflow passage and the light passage, a temperature control module is provided in the airflow passage, and a light sensing module is provided in the light passage.

[0006] Furthermore, the darkroom is located on the axis of the light path.

[0007] Furthermore, the air flow passage has a relative air inlet and exhaust port, a first light shielding body and a second light shielding body are provided between the air inlet and the exhaust port, the first light shielding body and the second light shielding body are respectively arranged at two ends of the darkroom, and the temperature control module is arranged between the first light shielding body and the air inlet.

[0008] Furthermore, the temperature control module includes a heater and a temperature sensor, the heater is arranged between the first light shielding body and the air inlet, and the temperature sensor is arranged on the first light shielding body.

[0009] Furthermore, the heating body is a spiral heating wire.

[0010] Furthermore, the temperature control module further includes a temperature and humidity sensor, and the temperature and humidity sensor is arranged between the darkroom and the second light shielding body.

[0011] Furthermore, the light path comprises a grating chamber and an extinction chamber, the grating chamber and the extinction chamber are respectively arranged at two ends of the dark chamber, and the grating chamber, the dark chamber and the extinction chamber are on the same axis.

[0012] Furthermore, the light sensing module includes a transmitter and a light sensing sensor, the transmitter is arranged on a side of the grating chamber away from the dark chamber, the light sensing sensor is arranged at the bottom of the dark chamber, and the light sensing sensor is connected to the dark chamber through a monitoring hole.

[0013] Furthermore, a multi-level grating is provided in the grating chamber.

[0014] The utility model also provides a device, comprising any one of the above-mentioned anti-fog type particle monitoring modules.

[0015] Based on the above, the anti-fog type particle monitoring module and equipment provided by the utility model, compared with the prior art, is provided with a temperature control module in the airflow passage, and the airflow is heated by the temperature control module to vaporize the water mist in the airflow, thereby preventing the water mist from entering the darkroom with the airflow and scattering the laser, thereby achieving the technical effect of eliminating water mist, reducing false alarms caused by water mist, and reducing the inability to accurately monitor the concentration of particulate matter in the air or the low monitoring accuracy due to water mist. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. The positional relationship described in the drawings in the following description is based on the direction of the components in the drawings unless otherwise specified.

[0017] Figure 1 A schematic diagram of the structure of an anti-fog type particle monitoring module provided in one embodiment of the utility model;

[0018] Figure 2 for Figure 1 Sectional view at AA in the middle;

[0019] Figure 3 for Figure 1 Sectional view at the middle BB;

[0020] Figure 4 A schematic diagram of the flow direction of an airflow passage provided in one embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the flow direction of a light path provided by an embodiment of the utility model.

[0022] Reference numerals:

[0023] 10-substrate 20-housing 30-temperature control module

[0024] 40-light sensing module 50-darkroom 60-air inlet

[0025] 70 - exhaust port 80 - first light shielding body 90 - second light shielding body

[0026] 100-grating chamber 110-extinction chamber 31-heating body

[0027] 32- Temperature sensor 33- Temperature and humidity sensor 41- Transmitter

[0028] 42-light sensor 51-monitoring hole DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof all mean "at least including".

[0031] See also Figure 1 , Figure 2 and Figure 3 , is a schematic structural diagram of an anti-fog type particle monitoring module provided by an embodiment of the utility model; Figure 2 for Figure 1 Sectional view at AA in the middle; Figure 3 for Figure 1 Cross-sectional view at BB in the middle.

[0032] In order to solve the above-mentioned technical problem that the concentration of particulate matter in the air cannot be accurately monitored due to the influence of water mist, or to achieve at least one of the above-mentioned advantages or other advantages, an embodiment of the utility model provides an anti-fog type particulate matter monitoring module. As shown in the figure, the anti-fog type particulate matter monitoring module includes a substrate 10 and a shell 20. The shell 20 covers the substrate 10, and the substrate 10 is pre-buried with a power supply and a communication line.

[0033] The housing 20 and the substrate 10 are covered with each other to form a passage chamber. Figure 2 See also Figure 4 and Figure 5 As shown in the figure, the passage chamber includes an airflow passage and an optical passage. A temperature control module 30 is provided in the airflow passage, and the temperature control module 30 can control the temperature of the airflow in the airflow passage. A light sensing module 40 is provided in the optical passage, and can emit laser and collect laser data.

[0034] The airflow path and the light path intersect to form a darkroom 50. The darkroom 50 is connected to the airflow path and the light path respectively. When the airflow flows into the darkroom 50 along the airflow path, the particles in the airflow can scatter the laser emitted by the light sensing module 40 on the light path. Preferably, the darkroom 50 is located on the axis of the light path, and the laser can be emitted into the darkroom 50 in the form of parallel light without changing the path of the laser.

[0035] On the basis of the above, the airflow passage has a relative air inlet 60 and an exhaust port 70. Air can flow into the airflow passage through the air inlet 60 and flow along the airflow passage, and finally flow out from the exhaust port 70. In specific implementation, a first light shielding body 80 and a second light shielding body 90 are provided between the air inlet 60 and the exhaust port 70. The first light shielding body 80 and the second light shielding body 90 are respectively arranged at both ends of the darkroom 50, and are used to block the light irradiated into the airflow passage at the air inlet 60 or the exhaust port 70, so as to prevent the light from entering the darkroom 50 and affecting the monitoring results.

[0036] Specifically, the first light shielding body 80 and the second light shielding body 90 are both composed of two light shielding plates that are spaced apart and staggered from each other, so as to ensure the light shielding property while not affecting the flow of airflow.

[0037] The temperature control module 30 is arranged between the first light shielding body 80 and the air inlet 60. The temperature control module 30 includes a heater 31 and a temperature sensor 32. The first light shielding body 80 and the air inlet 60 are in a heating zone, and the heater 31 is arranged in the heating zone, which can heat the airflow entering from the air inlet 60, remove the water mist in the airflow, and prevent the water mist from entering the darkroom 50 with the airflow, which affects the monitoring results. The temperature sensor 32 is arranged between the two light shielding plates of the first light shielding body 80 to collect the temperature of the heated airflow.

[0038] In some preferred embodiments, the temperature control module 30 further includes a temperature and humidity sensor 33. The temperature and humidity sensor 33 is disposed between the darkroom 50 and the second light shielding body 90, and is used to collect the temperature and humidity of the airflow outflowing from the darkroom 50.

[0039] It can be understood that due to the shading effect of the first light shielding body 810 and the second light shielding body 90, the space from the two ends of the darkroom 50 to the first light shielding body 80 and the second light shielding body 90 is also in a lightless state, and the air flow temperature and humidity in the space are consistent with the air flow temperature and humidity in the darkroom 50.

[0040] In some preferred embodiments, the light path includes a grating chamber 100 and an extinction chamber 110. In specific implementation, the grating chamber 100 and the extinction chamber 110 are respectively arranged at two ends of the dark chamber 50, and the grating chamber 100, the dark chamber 50 and the extinction chamber 110 are on the same axis. A multi-level grating is arranged in the grating chamber 100 for filtering laser light.

[0041] Preferably, the light sensing module 40 includes an emitter 41 and a light sensing sensor 42, wherein the emitter 41 is disposed on a side of the grating chamber 100 away from the darkroom 50, and the light sensing sensor 42 is disposed at the bottom of the darkroom 50, and a detection hole 51 is provided at the bottom of the darkroom 50, and the light sensing sensor 42 can collect the intensity and wavelength of the scattered laser through the monitoring hole 51. The emitter 41 and the light sensing sensor 42 are on the same axis as the darkroom 50.

[0042] In a specific implementation, the emitter 41 emits a laser, which enters the grating chamber 100, is filtered by the multi-stage grating, and is emitted from the grating chamber 100 in the form of parallel light and enters the dark chamber 50, where it scatters with the particles in the airflow, and finally enters the extinction chamber 110 for extinction processing. At this time, the light sensor 42 can collect the intensity and wavelength of the scattered laser to obtain the particle concentration.

[0043] In some preferred embodiments, the present invention further provides a device comprising the anti-fog type particle monitoring module described in the above embodiments.

[0044] To sum up, compared with the prior art, the anti-fog type particle monitoring module and equipment provided by the utility model, by arranging a temperature control module in the airflow passage, heats the airflow through the temperature control module, and vaporizes the water mist in the airflow, thereby preventing the water mist from entering the darkroom with the airflow and scattering the laser, thereby achieving the technical effect of eliminating water mist, reducing false alarms caused by water mist, and reducing the inability to accurately monitor the concentration of particulate matter in the air or the low monitoring accuracy due to water mist.

[0045] Although the terms such as airflow path, light path, light shielding body, etc. are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

[0046] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the utility model can be improved in only one or several aspects, without having to solve all the technical problems listed in the prior art or background technology at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be used as a limitation on the claim.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An anti-fog type particle monitoring module, characterized in that: include substrate; A shell, wherein the shell covers the substrate, a passage chamber is formed between the shell and the substrate, the passage chamber includes an airflow passage and a light passage, the airflow passage and the light passage intersect to form a darkroom, the darkroom is connected to the airflow passage and the light passage respectively, a temperature control module is provided in the airflow passage, and a light sensing module is provided in the light passage.

2. The anti-fog type particle monitoring module according to claim 1, characterized in that: The dark chamber is located on the axis of the light path.

3. The anti-fog type particle monitoring module according to claim 1, characterized in that: The airflow passage has a relative air inlet and exhaust port, a first light shielding body and a second light shielding body are provided between the air inlet and the exhaust port, the first light shielding body and the second light shielding body are respectively arranged at two ends of the darkroom, and the temperature control module is arranged between the first light shielding body and the air inlet.

4. The anti-fog type particle monitoring module according to claim 3, characterized in that: The temperature control module includes a heater and a temperature sensor. The heater is arranged between the first light shielding body and the air inlet, and the temperature sensor is arranged on the first light shielding body.

5. The anti-fog type particle monitoring module according to claim 4, characterized in that: The heating body is a spiral heating wire.

6. The anti-fog type particle monitoring module according to claim 4, characterized in that: The temperature control module further includes a temperature and humidity sensor, and the temperature and humidity sensor is arranged between the darkroom and the second light shielding body.

7. The anti-fog type particle monitoring module according to claim 1, characterized in that: The light passage comprises a grating chamber and an extinction chamber, the grating chamber and the extinction chamber are respectively arranged at two ends of the dark chamber, and the grating chamber, the dark chamber and the extinction chamber are on the same axis.

8. The anti-fog type particle monitoring module according to claim 7, characterized in that: The light sensing module comprises an emitter and a light sensing sensor. The emitter is arranged on a side of the grating chamber away from the dark chamber. The light sensing sensor is arranged at the bottom of the dark chamber. The light sensing sensor is connected to the dark chamber through a monitoring hole.

9. The anti-fog type particle monitoring module according to claim 7, characterized in that: The grating chamber is provided with a multi-level grating.

10. A device, characterized in that: It comprises the anti-fog type particle monitoring module as described in any one of claims 1 to 9.

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