Waste gas detection device capable of automatically collecting waste gas

Abstract

The utility model relates to the technical field of instruments, discloses a waste gas detection device capable of automatically collecting waste gas, and solves the technical problem that multi-point (including special risk points) and multi-node data acquisition needs to be designed in the prior art. A gas acquisition module comprises a sampling pipe and a sampling pump, and the sampling pump is used for providing sampling power for the sampling pipe; the control module comprises a timing controller and a positioner, the positioner is used for transmitting the position information to the timing controller, and the timing controller realizes serial logic control on the sampling pump based on the clock chip and the positioning position information; the gas mixing tank body is used for temporarily storing sample gas collected from the sampling pipe; the sensor is arranged in the gas mixing tank body; the display unit is used for displaying detection result data. According to the technical scheme, multi-point (including special risk points) and multi-node data acquisition is achieved through control of the control module, position sensing is achieved through the positioner, and positioning can be achieved through a conventional position switch or a GPS wireless positioning chip.

Description

Technical Field

[0001] This utility model relates to the field of instrument technology, and more specifically, it relates to an automatic waste gas detection device for collecting waste gas. Background Technology

[0002] Exhaust gas detection devices are used to detect the composition and concentration of exhaust gases, ensuring environmental and production safety. They operate based on principles of spectroscopy, electrochemistry, and chromatography, and are available in online, portable, and laboratory types. Composed of sampling, detection, data processing, and alarm systems, they are widely used for industrial, environmental, and indoor air quality monitoring.

[0003] Current exhaust gas detection devices typically employ active air extraction for sampling. This involves connecting an external extraction device, such as a small vacuum pump or air pump, to create a negative pressure environment inside the sampling tube. This draws external gas into the sampling tube due to the pressure difference. The extraction device can control the flow rate and velocity of the incoming air to meet different sampling requirements.

[0004] However, since areas with exhaust gas pollution are usually of a certain size, the results of single-point gas sampling are not very representative, especially since it is necessary to focus on sampling at specific risk points. At the same time, the results of single-time point sampling are also not very representative. Therefore, in order to obtain more accurate data on the possible exhaust gas pollution environment that people may be exposed to, it is necessary to design a multi-point sampling, key risk point sampling, and multi-time point sampling scheme to more comprehensively measure parameters such as environmental exhaust gas concentration. Utility Model Content

[0005] To address the technical problem of needing to design multi-point (including special risk points) and multi-node data acquisition as mentioned in the background technology, this utility model utilizes a control module to control and realize multi-point (including special risk points) and multi-node data acquisition. Specifically, a timer controller realizes timed control, and a locator realizes position sensing. The position can be a conventional position switch or a GPS wireless positioning chip.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An automatic waste gas collection and detection device, characterized in that it comprises:

[0008] A gas acquisition module, comprising a sampling tube and a sampling pump, wherein the sampling pump is mounted on the sampling tube and is used to provide sampling power to the sampling tube;

[0009] The control module includes a timing controller and a positioner. The positioner transmits position information to the timing controller, which implements serial logic control of the sampling pump based on a clock chip and the positioning position information.

[0010] A gas mixing tank, wherein the output end of the sampling tube is connected to the gas mixing tank, and the gas mixing tank is used to temporarily store the sample gas collected from the sampling tube;

[0011] A gas detection module, comprising a sensor and a data processing circuit, wherein the sensor and the data processing circuit are electrically connected, and the sensor is built into the gas mixing tank.

[0012] The data transmission and display module includes a data transmission unit and a display unit. The data transmission unit is electrically connected to the data processing circuit, and the display unit is data-connected to the data transmission unit. The display unit is used to display the detection result data.

[0013] Through the above technical solution, this utility model uses a control module to control and realize multi-point (including special risk points) and multi-node data acquisition. Specifically, a timer controller realizes timed control, and a locator realizes position sensing. The position can be a conventional position switch or a GPS wireless positioning chip.

[0014] Based on this technical solution, the detection device can perform timed sampling, and it needs to perform timed sampling when the detection device reaches a designated location, which is sensed by a locator. Upon reaching the designated location, the timer starts timed sampling, achieving uniform sampling across multiple nodes and special risk points.

[0015] Furthermore, the present invention provides that the locator is configured as a GPS locator.

[0016] Furthermore, the locator of this invention is configured as a position switch.

[0017] Furthermore, the present invention states that the controller uses an STM32 series chip and the clock chip is a DS1302 high-precision clock chip.

[0018] Furthermore, this invention features a sensor configured as a general-purpose gas module ZE12A, and a data processing circuit including an analog-to-digital converter. Combining mature electrochemical detection technology with sophisticated circuit design, it can detect gases such as CO, SO2, NO2, and O3 in the air using electrochemical principles, exhibiting good selectivity and stability. It demonstrates excellent performance in sensitivity, resolution, power consumption, and anti-interference capabilities. A built-in temperature sensor is included for temperature compensation, and it also features DAC (0.4–2V standard voltage signal) and UART (3V level, compatible with 5V) outputs, facilitating integration with various detection systems. It is suitable for detecting complex waste gas compositions and can simultaneously monitor multiple common harmful gases.

[0019] Furthermore, the present invention provides that the display unit is configured as an LCD display screen.

[0020] In summary, this utility model has the following beneficial effects:

[0021] This utility model utilizes a control module to achieve multi-point (including special risk points) and multi-node data acquisition. Specifically, a timer controller implements timed control, and a locator implements position sensing. The position can be a conventional position switch or a GPS wireless positioning chip.

[0022] Based on this technical solution, the detection device can perform timed sampling, and it needs to perform timed sampling when the detection device reaches a designated location, which is sensed by a locator. Upon reaching the designated location, the timer starts timed sampling, achieving uniform sampling across multiple nodes and special risk points. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the overall principle of an automatic waste gas collection and detection device.

[0024] Figure 2 This is a partial schematic diagram of the principle of an automatic waste gas collection and detection device.

[0025] Reference numerals: 100, Gas acquisition module; 101, Sampling tube; 102, Sampling pump; 200, Control module; 201, Timer controller; 202, Positioner; 300, Gas mixing tank; 400, Gas detection module; 401, Sensor; 402, Data processing circuit; 500, Data transmission and display module; 501, Data transmission unit; 502, Display unit. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0027] An automatic exhaust gas collection and detection device, combined with Figure 1 and Figure 2 As shown, the system includes: a gas acquisition module 100, a control module 200, a gas mixing tank 300, a gas detection module 400, and a data transmission and display module 500. The gas acquisition module 100 is used to collect waste gas. The control module 200 controls the acquisition time and location of the gas acquisition module 100. When located at a predetermined acquisition location, waste gas is collected according to a set time (preset frequency). The collected waste gas is then collected in the gas mixing tank 300, which centrally stores the mixed gas. Finally, the waste gas is detected by the gas detection module 400, and the detection results are displayed by the data transmission and display module 500.

[0028] The specific structure is set as follows:

[0029] The gas acquisition module 100 includes a sampling tube 101 and a sampling pump 102. The sampling pump 102 is mounted on the sampling tube 101 and is used to provide sampling power to the sampling tube 101. The output end of the sampling tube 101 is connected to a gas mixing tank 300, which is used to temporarily store the sample gas collected from the sampling tube 101.

[0030] The control module 200 includes a timing controller 201 and a locator 202. The locator 202 transmits location information to the timing controller 201, which implements serial logic control of the sampling pump 102 based on a clock chip and the location information. Serial logic control means that when the detection device is located at a predetermined sampling position, it collects exhaust gas according to a set time (preset frequency) and then gathers the collected exhaust gas into the gas mixing tank 300. The locator 202 identifies the location information to determine if the detection device is at the predetermined position. The locator 202 can be configured as a GPS locator, wirelessly receiving location information signals, or it can be configured as a position switch, such as a Hall effect position switch, sensing the predetermined position to achieve detection. In one embodiment, the controller 201 uses an STM32 series chip, and the clock chip 202 uses a DS1302 high-precision clock chip.

[0031] The gas detection module 400 includes a sensor 401 and a data processing circuit 402, which are electrically connected. The sensor 401 is built into the gas mixing tank 300. The sensor 401 is configured as a general-purpose gas module ZE12A, and the data processing circuit 402 includes an analog-to-digital converter circuit. Combining mature electrochemical detection technology with sophisticated circuit design, it can detect gases such as CO, SO2, NO2, and O3 in the air using electrochemical principles, exhibiting good selectivity and stability. It performs excellently in terms of sensitivity, resolution, power consumption, and anti-interference capability. It has a built-in temperature sensor for temperature compensation and also features a DAC 0.4~2V standard voltage signal and a UART 3V level, compatible with 5V output, facilitating connection to various detection systems. It is suitable for detection scenarios with complex exhaust gas compositions and can simultaneously monitor multiple common harmful gases.

[0032] The data transmission and display module 500 includes a data transmission unit 501 and a display unit 502. The data transmission unit 501 is electrically connected to the data processing circuit 402, and the display unit 502 is data-connected to the data transmission unit 501. The display unit 502 is used to display the detection result data. The display unit 502 is configured as an LCD screen.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An exhaust gas detection device that automatically collects exhaust gas, characterized by, The utility model relates to a kind of gas sampling device, including: Gas collection module (100), the gas collection module (100) includes sampling tube (101) and sampling pump (102), the sampling pump (102) is installed on sampling tube (101), and the sampling pump (102) is used to provide the sampling power of sampling tube (101); Control module (200), the control module (200) includes timing controller (201) and localizer (202), the localizer (202) is used to transmit position information to the timing controller (201), and the timing controller (201) is based on clock chip and positioning position information to realize the serial logic control of sampling pump (102); Gas mixing tank body (300), the output end of the sampling tube (101) is connected to gas mixing tank body (300), and the gas mixing tank body (300) is used to temporarily store sample gas collected from the sampling tube (101); Gas detection module (400), the gas detection module (400) includes sensor (401) and data processing circuit (402), and the sensor (401) and data processing circuit (402) are electric signal connection, and the sensor (401) is built-in in gas mixing tank body (300) inside; Data transmission and display module (500), the data transmission and display module (500) includes data transmission unit (501) and display unit (502), and the data transmission unit (501) is electric signal connection with data processing circuit (402), and the display unit (502) is data connection in data transmission unit (501), and the display unit (502) is used to show detection result data.

2. The exhaust gas detection device of claim 1, wherein: Wherein the localizer (202) is configured as GPS localizer.

3. The exhaust gas detection device of claim 1, wherein: Wherein the localizer (202) is configured as position switch.

4. The exhaust gas detection device of claim 1, wherein: Wherein the controller (201) uses STM32 series chip, and the clock chip selects DS1302 high-precision clock chip.

5. The exhaust gas detection device of claim 1, wherein: Wherein the sensor (401) is configured as general gas module ZE12A, and the data processing circuit (402) includes analog-digital conversion circuit.

6. The exhaust gas detection device of claim 1, wherein: Wherein the display unit (502) is configured as LCD display screen.

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