Monitoring device

Abstract

The utility model provides a monitoring device, which belongs to the technical field of gas detection and comprises a filter bin and a detection bin, and a filter module is arranged in the filter bin; the detection bin is communicated with the filtering bin, and a quantum dot spectrum sensor and a light source are arranged in the detection bin. During use, to-be-detected gas enters the filtering bin, impurities in the to-be-detected gas are removed through the filtering module, and the accuracy of the monitoring device is improved; the to-be-detected gas with impurities removed is conveyed into the detection bin, light emitted by the light source passes through the to-be-detected gas and then is received by the quantum dot spectrum sensor, an optical signal is converted into an analyzable electric signal, and the high sensitivity of the quantum dot spectrum sensor enables tiny spectrum change to be accurately detected. And the accuracy of the monitoring device is further improved. The gas detection device provided by the utility model solves the problem that the accuracy of a monitoring device in the prior art is easily influenced by impurities in gas.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas detection technical field, concretely relates to a monitoring device. BACKGROUND

[0002] With the improvement of environmental monitoring standard and the strengthening of industrial safety requirement, the demand for more efficient and more accurate gas monitoring technology is growing. Common gas monitoring devices usually use traditional gas monitoring technologies such as electrochemical sensor, infrared spectrum analysis or semiconductor gas sensor.

[0003] Chinese patent document (CN112179865A) discloses a kind of chemical gas safety intelligent sensing monitoring system, including infrared gas monitor, signal transmission module, spectrum database, video monitoring module and host computer, the infrared gas monitor and video monitoring module are set in production workshop or warehouse nearby, the infrared gas monitor is used to monitor the content of flammable gas and toxic gas in production workshop and warehouse in real time, signal transmission module transmits the gas content information monitored to spectrum database, and the determination and analysis of gas composition are completed by spectrum database.

[0004] However, the accuracy of the above-mentioned gas monitoring device is easily affected by dust, particulate matter and other large impurities in the gas, and the overall size of the gas monitoring device is large. UTILITY MODEL CONTENT

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the accuracy of the monitoring device in the prior art is easily affected by impurities in the gas, thereby providing a monitoring device.

[0006] In order to solve the above technical problems, the utility model provides a kind of monitoring device for gas monitoring, comprising:

[0007] Filter bin, the filter bin is provided with filter module, the filter module is used to remove impurities in the gas to be detected;

[0008] Detection bin, the detection bin is communicated with the filter bin, the detection bin is provided with quantum dot spectrum sensor and light source, the light emitted by the light source is irradiated to the quantum dot spectrum sensor after passing through the gas to be detected in the detection bin;

[0009] Wherein: the quantum dot spectrum sensor includes: quantum dot filter and detector, the quantum dot filter is located at the receiving side of the detector.

[0010] Optionally, the filter module includes: filter part and adsorption part, the filter part and the adsorption part are arranged at least one group in sequence.

[0011] Optionally, at least two fixed grids are arranged in the filter bin, and a plurality of air holes are arranged on the fixed grids, and the filter module is arranged between two adjacent fixed grids.

[0012] Optionally, a data processing module is further arranged on the detection bin, and the data processing module is in communication connection with the quantum dot spectrum sensor.

[0013] Optionally, a data transmission module is further arranged on the detection bin, and the data transmission module is in communication connection with the data processing module, and the data transmission module is used for transmitting data in real time.

[0014] Optionally, an air inlet is arranged at a first end of the filter bin, an air outlet is arranged at a first end of the detection bin, a second end of the filter bin is communicated with a second end of the detection bin, and the detection bin and the filter bin are arranged side by side.

[0015] Optionally, the light source is arranged at the first end of the detection bin, and the quantum dot spectrum sensor is arranged at the second end of the detection bin, and the light source and the quantum dot spectrum sensor are arranged opposite to each other.

[0016] Optionally, a gas treatment device is detachably arranged at the air outlet, the gas treatment device is communicated with the detection bin, and the gas treatment device is used for collecting and treating the detected gas.

[0017] Optionally, an air extraction device and / or a one-way valve are arranged at the air outlet.

[0018] Optionally, a gas collecting assembly is detachably arranged at the air inlet, and the gas collecting assembly is used for connecting a detected gas generating device.

[0019] The technical scheme of the utility model has the following advantages:

[0020] 1. The monitoring device provided by the utility model is used for removing impurities in the detected gas through the filter module when the detected gas enters the filter bin, thereby improving the accuracy of the monitoring device; the detected gas after removal of impurities is transported into the detection bin, the light of a specific wavelength emitted by the light source is received by the quantum dot spectrum sensor after passing through the detected gas in the detection bin, and the optical signal is converted into an analyzable electrical signal; the high sensitivity of the quantum dot spectrum sensor enables low-concentration gas and small changes in the gas to be accurately detected, thereby further improving the accuracy of the monitoring device; the quantum dot spectrum sensor technology has the advantages of miniaturization and low cost compared with the traditional grating sensor. The gas detection device provided by the utility model solves the problem that the accuracy of the monitoring device in the prior art is easily affected by impurities in the gas.

[0021] 2. The monitoring device provided by the utility model, the filtering part can filter large-particle impurities in the gas to be detected, the adsorption part can filter small particles or components in the gas to be detected, at least one group of filtering parts and adsorption parts are arranged in sequence, multi-stage filtering can be realized, and the filtering effect is improved.

[0022] 3. The monitoring device provided by the utility model, the two adjacent fixed gratings can limit and fix the filtering module, prevent displacement or dumping of the filtering module, and the fixed grating can also coarsely filter large impurities in the gas to be detected, so that the filtering effect is improved.

[0023] 4. The monitoring device provided by the utility model, the data processing module can process and analyze the electrical signal fed back by the quantum dot optical spectrum sensor, and compare with the database to identify and quantify the components and concentration of the gas.

[0024] 5. The monitoring device provided by the utility model, the data transmission module sends the analyzed data to the cloud processor, the intelligent device of the user or the centralized monitoring system, realizes real-time monitoring, and is convenient for long-term data recording and trend analysis.

[0025] 6. The monitoring device provided by the utility model, the gas to be detected enters the detection chamber from the second end of the filter chamber, can remove impurities through the filtering module in the filter chamber; the gas to be detected enters the detection chamber from the second end of the detection chamber, can fill the detection chamber, and ensures the accuracy of the detection structure; the detection chamber and the filter chamber are arranged side by side, and the length of the monitoring device can be reduced.

[0026] 7. The monitoring device provided by the utility model, the light source and the quantum dot optical spectrum sensor are arranged at two ends of the detection chamber respectively and face each other, the light emitted by the light source can pass through the gas in the detection chamber and then be received by the quantum dot optical spectrum sensor, so that the components and concentration of the gas can be accurately detected.

[0027] 8. The monitoring device provided by the utility model, when the gas to be detected is harmful gas, the gas discharged from the gas outlet is collected and treated by the gas treatment device.

[0028] 9. The monitoring device provided by the utility model, the filter chamber and the detection chamber can form negative pressure through the air extraction device at the gas outlet, so that the gas to be detected is sucked from the air inlet.

[0029] 10. The monitoring device provided by the utility model, for example, when used for detecting tail gas emission, the air inlet is communicated with the tail gas emission device through the gas collecting assembly, air mixed in the tail gas is avoided, and the detection result is affected. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 A schematic view of one embodiment of the monitoring device provided in the embodiments of the present application.

[0032] Explanation of reference signs:

[0033] 1, filter bin; 2, filter module; 3, filter part; 4, adsorption part; 5, detection bin; 6, light source; 7, quantum dot spectrum sensor; 8, data processing module; 9, data transmission module; 10, air inlet; 11, air outlet. Specific embodiments

[0034] The technical solutions of the present application will be described below in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0035] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0038] The embodiment provides a structure of a monitoring device capable of improving the accuracy of detection results, which is used for monitoring the composition and concentration of a gas.

[0039] As Figure 1 The embodiment provides a specific implementation of a monitoring device, which is used for gas monitoring and comprises a filtering bin 1 and a detection bin 5. The filtering bin 1 is internally provided with a filtering module 2, and the filtering module 2 is used for removing impurities in a to-be-detected gas. The detection bin 5 is in communication with the filtering bin 1, and the detection bin 5 is internally provided with a quantum dot spectrum sensor 7 and a light source 6. Light emitted by the light source 6 is irradiated to the quantum dot spectrum sensor 7 after passing through the to-be-detected gas in the detection bin 5. The quantum dot spectrum sensor 7 comprises a quantum dot filter and a detector, and the quantum dot filter is located at the receiving side of the detector.

[0040] In use, the to-be-detected gas enters the filtering bin 1, the filtering module 2 removes the impurities in the to-be-detected gas, and the accuracy of the monitoring device is improved. The to-be-detected gas after the impurities are removed is transported into the detection bin 5. The light source 6 emits light of a specific wavelength, the light passes through the to-be-detected gas in the detection bin 5 and is received by the quantum dot spectrum sensor 7, and the quantum dot spectrum sensor 7 converts an optical signal into an analyzable electrical signal. The high sensitivity of the quantum dot spectrum sensor 7 enables slight spectral changes to be accurately detected, further improves the accuracy of the monitoring device, and the quantum dot spectrum sensor 7 has the advantages of miniaturization and low cost compared with a traditional grating sensor. The gas detection device provided by the embodiment solves the problem that the accuracy of the monitoring device in the prior art is easily affected by impurities in the gas and realizes miniaturization of the monitoring device.

[0041] It should be noted that the light source 6 detects different gases by emitting light of different wavelength ranges. The infrared waveband light source 6 with a wavelength of 2.5 to 11 microns is used to detect gases such as CO2 and CH4. The infrared waveband light source 6 with a wavelength of 1.3 to 2.5 microns is used to detect trace gases (such as SO2 and NOx) and gases in a high-temperature and high-pressure environment. The infrared waveband light source 6 with a wavelength of 2.5 to 25 microns is used for qualitative and quantitative analysis of most complex gases. In addition to using specific wavebands, the light source 6 can also explore the use of adjustable light sources such as LEDs or lasers, which can provide more extensive wavelength selection and more accurate control.

[0042] According to the monitoring requirements, quantum dot materials with different compositions and properties can be selected to adjust the response wavelength and sensitivity of the quantum dot optical spectrum sensor 7. For example, quantum dots of different sizes and compositions can be used for the detection of specific gas components.

[0043] Specifically, the light source 6 includes a plurality of LED lamps of different wavelengths, and different waveband LED lamps can be turned on as needed to detect corresponding substances.

[0044] As shown in Figure 1 The filter module 2 in the monitoring device provided by the embodiment includes a filter part 3 and an adsorption part 4, and the filter part 3 and the adsorption part 4 are arranged in at least one group in sequence. The filter part 3 can filter large-particle impurities in the gas to be detected, and the adsorption part 4 can filter small particles or components in the gas to be detected. The filter part 3 and the adsorption part 4 are arranged in at least one group in sequence, which can realize multi-stage filtration and improve the filtration effect. In addition, as an alternative embodiment, a plurality of filter parts 3 can be arranged in series, and a plurality of adsorption parts 4 can be arranged in series.

[0045] As shown in Figure 1 The filter module 2 in the monitoring device provided by the embodiment is arranged between two adjacent fixed grids in the filter bin 1. The two adjacent fixed grids can limit and fix the filter module 2, preventing the filter module 2 from shifting or toppling over. At the same time, the fixed grid can also coarsely filter large impurities in the gas to be detected, improving the filtration effect. In addition, as an alternative embodiment, the partition grid can be omitted, and the filter module 2 can be fixedly arranged in the filter bin 1 by adhesion or other methods.

[0046] As shown in Figure 1 The detection bin 5 in the monitoring device provided by the embodiment is further provided with a data processing module 8, and the data processing module 8 is in communication connection with the quantum dot optical spectrum sensor 7. The data processing module 8 can process and analyze the electrical signals fed back by the quantum dot optical spectrum sensor 7, and compare them with a database to identify and quantify the components and concentrations of the gas. In addition, as an alternative embodiment, the data processing module 8 can be omitted, and the electrical signals of the quantum dot optical spectrum sensor 7 can be exported to a computer for data processing and analysis.

[0047] As shown in Figure 1As shown, the monitoring device provided by the embodiment is provided with a data transmission module 9, which is in communication connection with the data processing module 8 and is used for transmitting data in real time. The data transmission module 9 transmits the analyzed data to a cloud processor, a user's smart device or a centralized monitoring system, so as to realize real-time monitoring and facilitate long-term data recording and trend analysis. Specifically, the data transmission module 9 can load a wireless network and transmit data in real time through the wireless network. In addition, as an alternative implementation, the data transmission module 9 can be omitted, and the data analyzed by the data processing module 8 is manually exported periodically.

[0048] As shown in the drawings, Figure 1 As shown, the monitoring device provided by the embodiment is provided with a data transmission module 9, which is in communication connection with the data processing module 8 and is used for transmitting data in real time. The data transmission module 9 transmits the analyzed data to a cloud processor, a user's smart device or a centralized monitoring system, so as to realize real-time monitoring and facilitate long-term data recording and trend analysis. Specifically, the data transmission module 9 can load a wireless network and transmit data in real time through the wireless network. In addition, as an alternative implementation, the data transmission module 9 can be omitted, and the data analyzed by the data processing module 8 is manually exported periodically.

[0049] Specifically, a detachable cover can be arranged at the air inlet 10. When the monitoring device is needed to be used, the cover is opened, so that the to-be-detected gas can enter the filter bin 1 from the air inlet 10. When the monitoring device is not used, the cover is closed, so as to avoid external gas from entering the filter bin 1 from the air inlet 10, thereby preventing the filter module 2 from being polluted and worn.

[0050] As shown in the drawings, Figure 1As shown in the embodiment, the light source 6 is arranged at the first end of the detection chamber 5, the quantum dot spectrum sensor 7 is arranged at the second end of the detection chamber 5, and the light source 6 and the quantum dot spectrum sensor 7 are arranged opposite to each other. The light source 6 and the quantum dot spectrum sensor 7 are arranged at the two ends of the detection chamber 5 and arranged opposite to each other, so that the light emitted by the light source 6 can pass through the gas in the detection chamber 5 and then be received by the quantum dot spectrum sensor 7, thereby accurately detecting the composition and concentration of the gas. Alternatively, the light source 6 can be arranged at the second end of the detection chamber 5, the quantum dot spectrum sensor 7 can be arranged at the first end of the detection chamber 5, or the connecting line of the light source 6 and the quantum dot spectrum sensor 7 can be arranged perpendicular to the direction of the gas flow in the detection chamber 5.

[0051] As shown in the embodiment, the light source 6 is arranged at the first end of the detection chamber 5, the quantum dot spectrum sensor 7 is arranged at the second end of the detection chamber 5, and the light source 6 and the quantum dot spectrum sensor 7 are arranged opposite to each other. The light source 6 and the quantum dot spectrum sensor 7 are arranged at the two ends of the detection chamber 5 and arranged opposite to each other, so that the light emitted by the light source 6 can pass through the gas in the detection chamber 5 and then be received by the quantum dot spectrum sensor 7, thereby accurately detecting the composition and concentration of the gas. Alternatively, the light source 6 can be arranged at the second end of the detection chamber 5, the quantum dot spectrum sensor 7 can be arranged at the first end of the detection chamber 5, or the connecting line of the light source 6 and the quantum dot spectrum sensor 7 can be arranged perpendicular to the direction of the gas flow in the detection chamber 5. Figure 1 As shown in the embodiment, the gas treatment device is detachably arranged at the gas outlet 11, the gas treatment device is in communication with the detection chamber 5, and the gas treatment device is used for collecting and treating the detected gas. When the gas to be detected is harmful gas, the gas treatment device is used for collecting and treating the gas discharged from the gas outlet 11. Alternatively, the gas treatment device can be omitted, and the monitored gas can be directly discharged.

[0052] As shown in the embodiment, the gas treatment device is detachably arranged at the gas outlet 11, the gas treatment device is in communication with the detection chamber 5, and the gas treatment device is used for collecting and treating the detected gas. When the gas to be detected is harmful gas, the gas treatment device is used for collecting and treating the gas discharged from the gas outlet 11. Alternatively, the gas treatment device can be omitted, and the monitored gas can be directly discharged. Figure 1 As shown in the embodiment, the gas treatment device is detachably arranged at the gas outlet 11, the gas treatment device is in communication with the detection chamber 5, and the gas treatment device is used for collecting and treating the detected gas. When the gas to be detected is harmful gas, the gas treatment device is used for collecting and treating the gas discharged from the gas outlet 11. Alternatively, the gas treatment device can be omitted, and the monitored gas can be directly discharged.

[0053] As shown in the embodiment, the gas treatment device is detachably arranged at the gas outlet 11, the gas treatment device is in communication with the detection chamber 5, and the gas treatment device is used for collecting and treating the detected gas. When the gas to be detected is harmful gas, the gas treatment device is used for collecting and treating the gas discharged from the gas outlet 11. Alternatively, the gas treatment device can be omitted, and the monitored gas can be directly discharged. Figure 1 As shown in the embodiment, the gas treatment device is detachably arranged at the gas outlet 11, the gas treatment device is in communication with the detection chamber 5, and the gas treatment device is used for collecting and treating the detected gas. When the gas to be detected is harmful gas, the gas treatment device is used for collecting and treating the gas discharged from the gas outlet 11. Alternatively, the gas treatment device can be omitted, and the monitored gas can be directly discharged.

[0054] Use method:

[0055] As Figure 1 shown, the monitoring device provided by the embodiment, in use, the gas to be detected enters the filter bin 1 from the gas inlet 10, passes through the filter part 3 and the adsorption part 4, enters the detection bin 5 after removing impurities, the light emitted by the light source 6 is received by the quantum dot spectrum sensor 7 after passing through the gas to be detected, the quantum dot spectrum sensor 7 converts the optical signal into an electrical signal, the electrical signal is processed and analyzed by the data processing module 8, and the data is transmitted to the data transmission module 9, and real-time monitoring is realized through the data transmission module 9.

[0056] Obviously, the above embodiment is only an example for clear illustration, and is not a limitation on the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A monitoring device for gas monitoring, characterized in that The utility model relates to a kind of quantum dot gas detection device, including: Filtering bin (1), filtering module (2) is provided in the filtering bin (1), and the filtering module (2) is used to remove impurities in the gas to be detected; Detection bin (5), the detection bin (5) is communicated with the filtering bin (1), quantum dot spectrum sensor (7) and light source (6) are provided in the detection bin (5), and the light emitted by the light source (6) is irradiated to the quantum dot spectrum sensor (7) after passing through the gas to be detected in the detection bin (5); Wherein: the quantum dot spectrum sensor (7) includes: quantum dot filter and detector, and the quantum dot filter is located at the receiving side of the detector.

2. The monitoring device of claim 1, wherein, The filtering module (2) includes: filter part (3) and adsorption part (4), and the filter part (3) and the adsorption part (4) are arranged in at least one group.

3. The monitoring device of claim 2, wherein, At least two fixed grids are provided in the filtering bin (1), a plurality of air holes are provided on the fixed grid, and the filtering module (2) is arranged between two adjacent fixed grids.

4. The monitoring device of claim 1, wherein, Data processing module (8) is further provided on the detection bin (5), and the data processing module (8) is connected with the quantum dot spectrum sensor (7) in communication.

5. The monitoring device of claim 4, wherein, Data transmission module (9) is further provided on the detection bin (5), the data transmission module (9) is connected with the data processing module (8) in communication, and the data transmission module (9) is used to send data in real time.

6. The monitoring device according to any one of claims 1-5, characterized in that, The first end of the filtering bin (1) is provided with an air inlet (10), the first end of the detection bin (5) is provided with an air outlet (11), the second end of the filtering bin (1) and the second end of the detection bin (5) are communicated, and the detection bin (5) and the filtering bin (1) are arranged side by side.

7. The monitoring device of claim 6, wherein, The light source (6) is arranged at the first end of the detection bin (5), the quantum dot spectrum sensor (7) is arranged at the second end of the detection bin (5), and the light source (6) and the quantum dot spectrum sensor (7) are arranged opposite to each other.

8. The monitoring device of claim 6, wherein, Gas treatment device is detachably arranged at the air outlet (11), the gas treatment device is communicated with the detection bin (5), and the gas treatment device is used to collect and process the detected gas.

9. The monitoring device of claim 6, wherein, Exhaust device and / or one-way valve are arranged at the air outlet (11).

10. The monitoring device according to any one of claims 7-9, characterized in that, Gas collection assembly is detachably arranged at the air inlet (10), and the gas collection assembly is used to connect the gas generation device to be detected.

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