CN216386873U - Composite gas sensor and detection system - Google Patents
Composite gas sensor and detection system Download PDFInfo
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- CN216386873U CN216386873U CN202122898444.XU CN202122898444U CN216386873U CN 216386873 U CN216386873 U CN 216386873U CN 202122898444 U CN202122898444 U CN 202122898444U CN 216386873 U CN216386873 U CN 216386873U
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Abstract
The utility model provides a composite gas sensor and a detection system, wherein the sensor monitors volatile organic compounds existing in the environment by applying a photoionization technology and integrates measurement of various environmental parameters such as temperature, humidity, air pressure and the like. The sensor has the characteristics of high sensitivity, wide range and broad spectrum, can detect various Volatile Organic Compounds (VOCs) in different application fields, and has high response speed and high resolution. The active gas collecting device is configured, the air flow can be collected more quickly through design optimization, the detection speed is accelerated, the detection result and alarm information are sent to the upper computer in real time through the communication interface and the high-speed field bus after the sensing, the analysis and the processing of the composite sensor, and the device can be used for detecting various volatile organic compounds in the fields of equipment oil leakage monitoring, air quality monitoring, early fire warning and the like.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to a composite gas sensor and a detection system.
Background
At present, most sensors used for environment detection are electrochemical, the electrochemical service life is short, the temperature has great influence on the detection result, and internal temperature compensation touch temperature measurement is needed; adopt passive collection, and only detect to VOC (volatile organic compounds), lack the monitoring of environmental parameter, output is mostly analog output, needs external hardware to carry out ADC conversion and data communication support.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a composite gas sensor and detection system that solves the above-mentioned problems of the prior art.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a compound gas sensor, adopts cylindrical shell structure, shell structure is inside to be provided with gas collection device, light ion sensor and power supply and communication interface, gas collection device with light ion sensor links to each other, light ion sensor with power supply and communication interface link to each other.
Preferably, the bottom of cylindrical shell sets up the air inlet, gas collecting device links to each other with the air inlet, be provided with the exhaust hole on the cylindrical shell, light ion sensor's air exit with the exhaust hole corresponds, power supply and communication interface set up with the other end that the air inlet is relative.
Preferably, the gas collecting device adopts a vacuum pump.
Preferably, a matching mounting plate is arranged on the cylindrical shell, and the matching mounting plate is arranged on one side of the shell.
Preferably, the power supply and communication interface adopts an M12 aviation plug.
Preferably, the light ion sensor ionizes the collected air, analyzes the ion components, and gives an alarm if VOCs gas ions exist, or does not give an alarm if VOCs gas ions exist; the ionized ions are recombined into gas molecules after being separated from the sensor and are exhausted through an air outlet and an air exhaust hole of the sensor.
The utility model also provides a composite gas detection system, which comprises the composite gas sensor and an upper computer system, wherein outside air enters the composite gas sensor through an air inlet, and a detection result or alarm information is sent to the upper computer system through a real-time communication interface after being detected by the photo-ion sensor.
The utility model has the beneficial effects that:
the utility model provides a composite gas sensor and a detection system, wherein the sensor monitors volatile organic compounds existing in the environment by applying a photoionization technology and integrates measurement of various environmental parameters such as temperature, humidity, air pressure and the like. The sensor has the characteristics of high sensitivity, wide range and broad spectrum, can detect various Volatile Organic Compounds (VOCs) in different application fields, and has high response speed and high resolution. The active gas collecting device is configured, the air flow can be collected more quickly through design optimization, the detection speed is accelerated, the detection result and alarm information are sent to the upper computer in real time through the communication interface and the high-speed field bus after the sensing, the analysis and the processing of the composite sensor, and the device can be used for detecting various volatile organic compounds in the fields of equipment oil leakage monitoring, air quality monitoring, early fire warning and the like.
Drawings
FIG. 1 is a schematic view of the structure of a composite gas sensor provided in example 1;
1 is an air inlet, 2 is an air outlet, and 3 is a power supply and communication interface;
fig. 2 is a schematic block diagram of the composite gas detection system provided in embodiment 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
The embodiment provides a composite gas sensor, as shown in fig. 1, the sensor adopts a cylindrical shell structure, a gas collecting device, a light ion sensor and a power supply and communication interface are arranged inside the shell structure, the gas collecting device is connected with the light ion sensor, and the light ion sensor is connected with the power supply and communication interface. The bottom of cylindrical shell sets up the air inlet, gas collecting device links to each other with the air inlet, be provided with the exhaust hole on the cylindrical shell, light ion sensor's air exit with the exhaust hole corresponds, power supply and communication interface set up with the other end that the air inlet is relative.
In order to realize the installation of the sensor, a matched mounting plate is arranged on the cylindrical shell and arranged on one side of the shell, so that the normal work of the air inlet and the power supply and communication interface is prevented from being hindered.
The power supply and communication interface in the embodiment adopts an M12 aviation plug, so that a power supply device of the composite gas sensor can be ensured, and data of the composite gas sensor can be uploaded to an upper computer system or an external storage device in real time.
The gas collection device adopts a vacuum pump to actively collect surrounding air, and then enters the photoion sensor.
The photoionization technology is applied to the photoionization sensor in the embodiment to monitor volatile organic compounds existing in the environment, and various environmental parameters such as temperature, humidity and air pressure are integrated to measure. The sensor has the characteristics of high sensitivity, wide range and broad spectrum, can detect various Volatile Organic Compounds (VOCs) in different application fields, has high response speed and high resolution, ionizes the collected air, analyzes the ion components, alarms if VOCs gas ions exist, and does not alarm if the VOCs gas ions do not exist; the ionized ions are recombined into gas molecules after being separated from the sensor and are exhausted through an air outlet and an air exhaust hole of the sensor.
Example 2
The embodiment provides a compound gas detection system, including the compound gas sensor that provides in embodiment 1, still include the host computer, the theory of operation is as shown in fig. 2:
the vacuum pump in the composite gas sensor actively collects surrounding air, then the surrounding air enters the light ion sensor through the air inlet, the light ion sensor ionizes the collected air, the ion components appearing are analyzed, if VOCs gas ions exist, the signal is transmitted to the upper computer system to give an alarm, and otherwise, the alarm is not given. The ionized ions are recombined into gas molecules after being separated from the light ion sensor and are exhausted through an air outlet of the sensor.
The composite sensor in the embodiment supports front-end operation, an embedded program is arranged in the sensor, acquired data can be stored and processed on the spot, the algorithm and the strategy are arranged at the sensor end in front, external ADC (analog to digital converter) conversion is not needed, the analysis and processing of the data can be completed without the support of central computing power, multidimensional data coupling analysis can be performed, the operation result is directly output, and the network communication load and cloud pressure are reduced.
The sensor uploads the collected and analyzed information to the upper computer, the upper computer outputs and displays the data, the transmission process supports multiple communication modes such as CAN-FD high-speed bus communication, BLE/IBEACON near field communication and the like, the data are output in a full digital mode, and personalized communication requirements of different fields are met. The brand-new OpenData (open data) concept can provide barrier-free data sharing for other related systems, and provides data support for full-system fine management and control.
By adopting the technical scheme disclosed by the utility model, the following beneficial effects are obtained:
the utility model provides a composite gas sensor and a detection system, the application of the composite sensor technology can reduce the arrangement quantity of sensors, greatly reduce the deployment cost, and a single composite sensor can complete the measurement of multiple environmental parameters; and meanwhile, a multiple communication mode is adopted, a proper wired and wireless communication mode can be flexibly selected according to different environments, and sensor data can be directly uploaded to a server or forwarded to an upper computer or the server through a data gateway.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention.
Claims (7)
1. The composite gas sensor is characterized in that a cylindrical shell structure is adopted, a gas collecting device, a light ion sensor and a power supply and communication interface are arranged inside the shell structure, the gas collecting device is connected with the light ion sensor, and the light ion sensor is connected with the power supply and communication interface.
2. The composite gas sensor according to claim 1, wherein an air inlet is provided at the bottom of the cylindrical housing, the gas collecting device is connected to the air inlet, an air outlet is provided on the cylindrical housing, the air outlet of the photo-ion sensor corresponds to the air outlet, and the power supply and communication interface is provided at the other end opposite to the air inlet.
3. The composite gas sensor according to claim 1, wherein the gas collection means employs a vacuum pump.
4. The composite gas sensor of claim 1, wherein a mating mounting plate is provided on the cylindrical housing, the mating mounting plate being provided on a side of the housing.
5. The composite gas sensor of claim 1, wherein the power and communication interface employs an M12 aviation plug.
6. The composite gas sensor according to claim 1, wherein the photoion sensor ionizes the collected air, analyzes the ion components that appear, and alarms if there are VOCs gas ions, otherwise does not alarm; the ionized ions are recombined into gas molecules after being separated from the sensor and are exhausted through an air outlet and an air exhaust hole of the sensor.
7. A composite gas detection system is characterized by comprising the composite gas sensor of any one of claims 1 to 6 and further comprising an upper computer system, wherein outside air enters the composite gas sensor through an air inlet, and a detection result or alarm information is sent to the upper computer system through a real-time communication interface after being detected by the photo-ion sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122898444.XU CN216386873U (en) | 2021-11-24 | 2021-11-24 | Composite gas sensor and detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122898444.XU CN216386873U (en) | 2021-11-24 | 2021-11-24 | Composite gas sensor and detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216386873U true CN216386873U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122898444.XU Active CN216386873U (en) | 2021-11-24 | 2021-11-24 | Composite gas sensor and detection system |
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| CN (1) | CN216386873U (en) |
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2021
- 2021-11-24 CN CN202122898444.XU patent/CN216386873U/en active Active
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