Gas sensor module with integrated gas sampling pre-treatment device

Abstract

The utility model relates to the technical field of gas sensor, in particular to a kind of integrated gas sampling pretreatment device in gas sensor module, it not only is convenient to filter purification to the sampled gas, avoid particulate matter, water vapor and the like influence detection effect, and it is convenient to device handling movement, cope with some relatively narrow sampling space, improve the use flexibility of device;Including working tank;Still including detection mechanism, air extraction mechanism, filter mechanism and sampling mechanism, detection mechanism is installed on working tank and detects gas, air extraction mechanism is installed on detection mechanism and collects gas, filter mechanism is installed on working tank and pretreats gas, sampling mechanism is installed on filter mechanism and is convenient to sample gas.

Description

Technical Field

[0001] This utility model relates to the technical field of gas sensors, and in particular to a gas sampling preprocessing device integrated into a gas sensor module. Background Technology

[0002] A gas sensor is an electronic device that detects the composition or concentration of a specific gas. It is like an "electronic nose" for the gas. Its core function is to convert gas information into measurable electrical signals. It is widely used in environmental monitoring, industrial safety, medical health, smart home and other fields.

[0003] Existing gas sampling pretreatment devices, such as the economical and reliable gas sampling pretreatment analyzer disclosed in utility model patent application number 201822109008.8, mainly include an analyzer body, a fixing block, and a first air inlet pipe. The fixing block is fixedly connected to one side of the top of the analyzer body, and the top of the fixing block is connected to the first air inlet pipe through a threaded ring. In use, the solenoid valve of the second air inlet pipe is opened, and the gas is filtered through a coarse filter plate and a fine filter plate. Then, the solenoid valve of the first air inlet pipe is opened, allowing the gas to enter the analyzer body.

[0004] However, existing gas sensors are difficult to purify particulate matter and water vapor, which can easily interfere with the detection results. Moreover, most existing pretreatment devices are large in size and difficult to apply to relatively small spaces. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a gas sampling pretreatment device integrated into a gas sensor module. This device not only facilitates the filtration and purification of sampled gas, preventing particulate matter and water vapor from affecting the detection effect, but also facilitates the transport and movement of the device, making it suitable for narrow sampling spaces and improving the flexibility of the device's use.

[0006] This utility model discloses a gas sensor module integrating a gas sampling pretreatment device, including a working box; it also includes a detection mechanism, a suction mechanism, a filtration mechanism, and a sampling mechanism. The detection mechanism is installed on the working box to detect the gas, the suction mechanism is installed on the detection mechanism to collect the gas, the filtration mechanism is installed on the working box to pretreat the gas, and the sampling mechanism is installed on the filtration mechanism to facilitate gas sampling. The operator moves the working box to the sampling position. When the sampling position is too narrow, the sampling mechanism can be removed to facilitate sampling. The suction mechanism is activated to extract the gas, and the air enters the filtration mechanism through the sampling mechanism for filtration and purification. The purified gas is then transported to the detection mechanism for detection through the suction mechanism.

[0007] Preferably, the working box includes a box body, a handle, an exhaust grille, and a display screen. The box body has an internal cavity. The handle is rotatably mounted on the box body, the exhaust grille is mounted on the box body, and the display screen is mounted on the box body. The operator operates the handle to move the box body, controls the air extraction and sampling through the display screen, displays the test results on the display screen, and discharges the gas through the exhaust grille after the test is completed.

[0008] Preferably, the detection mechanism includes a gas chamber, a gas sensor, an exhaust pipe, and an exhaust valve. The gas chamber is installed inside the cavity of the housing, the gas sensor is installed inside the gas chamber, the exhaust pipe is connected to the inside of the gas chamber, and the exhaust valve is installed on the exhaust pipe. The gas extraction mechanism delivers the pre-treated gas into the gas chamber, the gas sensor detects the gas, and after the detection is completed, the exhaust valve is opened, and the gas is discharged through the exhaust pipe.

[0009] Preferably, the air extraction mechanism includes an air pump, an air extraction pipe, an air delivery pipe, and a check valve. The air pump is installed inside the cavity of the housing. The air extraction pipe is connected to the air inlet of the air pump, and the air delivery pipe is connected to the air outlet of the air pump. The air delivery pipe is also connected to the inside of the air chamber. The check valve is installed on the air delivery pipe. The operator starts the air pump through the display screen. The air pump extracts air through the air extraction pipe, and the gas is delivered to the air chamber through the air delivery pipe. The check valve prevents the gas from flowing back.

[0010] Preferably, the filtration mechanism includes a filter box, a particulate filter layer, a hydrophobic and breathable layer, a selective adsorption layer, and an electric heater. The filter box is installed inside the cavity of the box body, and the electric heater is connected to the inside of the extraction pipe. The particulate filter layer, the hydrophobic and breathable layer, the selective adsorption layer, and the electric heater are all installed inside the filter box. Air enters the filter box through the sampling mechanism. The particulate filter layer filters out particulate impurities, the hydrophobic and breathable layer blocks liquid water, the selective adsorption layer adsorbs interfering gases, and then the electric heater heats the gas to accelerate gas diffusion and facilitate gas entry into the extraction pipe.

[0011] Preferably, the sampling mechanism includes a sampling hose, a sampling frame, two sets of handles, an air intake grille, a filter screen, and a control valve. The sampling hose is connected to the inside of the filter box, and the sampling frame is connected to the inside of the sampling hose. Both sets of handles are installed on the sampling frame, the air intake grille is installed on the sampling frame, the filter screen is installed on the sampling frame, and the control valve is installed on the sampling hose. When a small sampling space is required, the operator operates the two sets of handles to remove the sampling frame and place it in the sampling space. After the air is initially filtered by the filter screen and the air intake grille, it enters the filter box through the sampling hose.

[0012] Preferably, the grip is also equipped with a non-slip sleeve; by setting the protective sleeve, it is easier for staff to hold the grip and place the sampling frame in a narrow space, and to prevent staff from slipping and dropping it.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the staff moves the work box to the sampling position. When the sampling position is too narrow, the sampling mechanism can be removed to facilitate sampling. The air extraction mechanism is started to extract air. The air enters the filtration mechanism through the sampling mechanism for filtration and purification. The purified gas is then transported to the detection mechanism for detection through the air extraction mechanism. Attached Figure Description

[0014] Figure 1 This is a top cross-sectional view of the present invention. Figure 2 This is an isometric structural diagram of the working box of this utility model; Figure 3 This is a cross-sectional isometric structural diagram of the testing mechanism of this utility model; Figure 4 This is a cross-sectional isometric structural diagram of the air extraction mechanism and the filtration mechanism of this utility model; Figure 5 This is a partially enlarged cross-sectional isometric structural diagram of the sampling mechanism of this utility model.

[0015] The attached diagram is labeled as follows: 01, working box; 11, box body; 12, handle; 13, exhaust grille; 14, display screen; 02, detection mechanism; 21, air chamber; 22, gas sensor; 23, exhaust pipe; 24, exhaust valve; 03, suction mechanism; 31, suction pump; 32, suction pipe; 33, air supply pipe; 34, check valve; 04, filtration mechanism; 41, filter box; 42, particulate filter layer; 43, hydrophobic and breathable membrane; 44, selective adsorption layer; 45, electric heater; 05, sampling mechanism; 51, sampling hose; 52, sampling frame; 53, handle; 54, air inlet grille; 55, filter screen; 56, control valve. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0017] This utility model discloses a gas sensor module integrating a gas sampling pretreatment device, including a working box 01; it also includes a detection mechanism 02, a suction mechanism 03, a filtration mechanism 04, and a sampling mechanism 05. The detection mechanism 02 is installed on the working box 01 to detect the gas, the suction mechanism 03 is installed on the detection mechanism 02 to collect the gas, the filtration mechanism 04 is installed on the working box 01 to pretreat the gas, and the sampling mechanism 05 is installed on the filtration mechanism 04 to facilitate gas sampling. The working box 01 includes a box body 11, a handle 12, an exhaust grille 13, and a display screen 14. The box body 11 has an internal cavity, the handle 12 is rotatably mounted on the box body 11, and the exhaust grille 14... The grid 13 is mounted on the housing 11, and the display screen 14 is mounted on the housing 11. The detection mechanism 02 includes a gas chamber 21, a gas sensor 22, an exhaust pipe 23, and an exhaust valve 24. The gas chamber 21 is installed inside the cavity of the housing 11, the gas sensor 22 is installed inside the gas chamber 21, the exhaust pipe 23 communicates with the inside of the gas chamber 21, and the exhaust valve 24 is installed on the exhaust pipe 23. The air extraction mechanism 03 includes an air extraction pump 31, an air extraction pipe 32, an air delivery pipe 33, and a check valve 34. The air extraction pump 31 is installed inside the cavity of the housing 11, the air extraction pipe 32 communicates with the inside of the air inlet of the air extraction pump 31, the air delivery pipe 33 communicates with the inside of the air outlet of the air extraction pump 31, and the air delivery pipe 33 communicates with the inside of the gas chamber 21. The check valve 34 is also connected to the inside of the housing 11. Valve 34 is installed on the air supply pipe 33; the filtration mechanism 04 includes a filter box 41, a particulate filter layer 42, a hydrophobic and breathable layer 43, a selective adsorption layer 44, and an electric heater 45. The filter box 41 is installed in the cavity of the housing 11, and the electric heater 45 is connected to the inside of the extraction pipe 32. The particulate filter layer 42, the hydrophobic and breathable layer 43, the selective adsorption layer 44, and the electric heater 45 are all installed inside the filter box 41. When it is working, firstly, the operator operates the handle 12 to move the housing 11, and controls the air extraction and sampling through the display screen 14. When the sampling position is too narrow, the sampling mechanism 05 can be removed to facilitate sampling. The staff starts the air pump 31 through the display screen 14. The air pump 31 draws air through the air extraction pipe 32. The air enters the filter box 41 through the sampling mechanism 05. The particulate filter layer 42 filters out particulate impurities, the hydrophobic and breathable layer 43 blocks liquid water, and the selective adsorption layer 44 adsorbs interfering gases. Then, the electric heater 45 heats the gas to accelerate gas diffusion and facilitate the gas to enter the air extraction pipe 32. The gas is delivered to the gas chamber 21 through the gas delivery pipe 33. The gas backflow is prevented by setting a check valve 34. The gas sensor 22 detects the gas, and the detection result is displayed on the display screen 14. After the detection is completed, the exhaust valve 24 is opened, and the gas is discharged through the exhaust pipe 23 and the exhaust grille 13. Example 2

[0018] like Figures 1 to 5As shown, this utility model integrates a gas sampling pretreatment device in a gas sensor module, based on embodiment 1. The sampling mechanism 05 includes a sampling hose 51, a sampling frame 52, two sets of handles 53, an air inlet grille 54, a filter screen 55, and a control valve 56. The sampling hose 51 is connected to the inside of the filter box 41, and the sampling frame 52 is connected to the inside of the sampling hose 51. Both sets of handles 53 are installed on the sampling frame 52, the air inlet grille 54 is installed on the sampling frame 52, the filter screen 55 is installed on the sampling frame 52, and the control valve 56 is installed on the sampling hose 51. It also includes anti-slip sleeves on the handles 53. During operation, the operator first operates the handle 12 to move the box 11, and controls the air extraction sampling through the display screen 14. When a small sampling space is needed, the operator operates the two sets of handles 53 to remove the sampling frame 52 and place it into the sampling space. Air passes through the filter screen 55 and the air inlet grille 54. After initial filtration, the sample enters the filter box 41 through the sampling hose 51. A protective cover is provided to facilitate the staff's grip on the handle 53 to place the sampling frame 52 in a confined space, preventing the staff from slipping and dropping it. The staff starts the air pump 31 through the display screen 14. The air pump 31 draws air through the air extraction pipe 32, and the air enters the filter box 41 through the sampling hose 51. The particulate filter layer 42 filters out particulate impurities, the hydrophobic and breathable layer 43 blocks liquid water, and the selective adsorption layer 44 adsorbs interfering gases. Then, the electric heater 45 heats the gas to accelerate gas diffusion and facilitate the gas entering the air extraction pipe 32. The gas is delivered to the gas chamber 21 through the gas delivery pipe 33. A check valve 34 is provided to prevent gas backflow. The gas sensor 22 detects the gas, and the detection result is displayed on the display screen 14. After the detection is completed, the exhaust valve 24 is opened, and the gas is discharged through the exhaust pipe 23 and the exhaust grille 13.

[0019] The air pump 31 of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A gas sampling preprocessing device integrated into a gas sensor module, comprising a working box (01); characterized in that, It also includes a detection mechanism (02), a gas extraction mechanism (03), a filtration mechanism (04), and a sampling mechanism (05). The detection mechanism (02) is installed on the working box (01) to detect the gas. The gas extraction mechanism (03) is installed on the detection mechanism (02) to collect the gas. The filtration mechanism (04) is installed on the working box (01) to pre-treat the gas. The sampling mechanism (05) is installed on the filtration mechanism (04) to facilitate gas sampling.

2. The gas sampling preprocessing device integrated in a gas sensor module as described in claim 1, characterized in that, The work box (01) includes a box body (11), a handle (12), an exhaust grille (13) and a display screen (14). The box body (11) has an internal cavity. The handle (12) is rotatably mounted on the box body (11). The exhaust grille (13) is mounted on the box body (11). The display screen (14) is mounted on the box body (11).

3. The gas sampling preprocessing device integrated in a gas sensor module as described in claim 2, characterized in that, The testing mechanism (02) includes a gas chamber (21), a gas sensor (22), an exhaust pipe (23), and an exhaust valve (24). The gas chamber (21) is installed in the cavity of the housing (11), the gas sensor (22) is installed in the gas chamber (21), the exhaust pipe (23) is connected to the inside of the gas chamber (21), and the exhaust valve (24) is installed on the exhaust pipe (23).

4. The gas sampling preprocessing device integrated in a gas sensor module as described in claim 3, characterized in that, The air extraction mechanism (03) includes an air pump (31), an air extraction pipe (32), an air delivery pipe (33), and a check valve (34). The air pump (31) is installed in the cavity of the housing (11). The air extraction pipe (32) is connected to the air inlet of the air pump (31). The air delivery pipe (33) is connected to the air outlet of the air pump (31). The air delivery pipe (33) is connected to the air chamber (21). The check valve (34) is installed on the air delivery pipe (33).

5. The gas sampling preprocessing device integrated in a gas sensor module as described in claim 4, characterized in that, The filtration mechanism (04) includes a filter box (41), a particulate filter layer (42), a hydrophobic and breathable layer (43), a selective adsorption layer (44), and an electric heater (45). The filter box (41) is installed in the cavity of the box body (11), and the electric heater (45) is connected to the inside of the exhaust pipe (32). The particulate filter layer (42) is installed in the filter box (41), the hydrophobic and breathable layer (43) is installed in the filter box (41), the selective adsorption layer (44) is installed in the filter box (41), and the electric heater (45) is installed in the filter box (41).

6. The gas sampling preprocessing device integrated in a gas sensor module as described in claim 5, characterized in that, The sampling mechanism (05) includes a sampling hose (51), a sampling frame (52), two sets of handles (53), an air intake grille (54), a filter screen (55), and a control valve (56). The sampling hose (51) is connected to the inside of the filter box (41), and the sampling frame (52) is connected to the inside of the sampling hose (51). Both sets of handles (53) are installed on the sampling frame (52), the air intake grille (54) is installed on the sampling frame (52), the filter screen (55) is installed on the sampling frame (52), and the control valve (56) is installed on the sampling hose (51).

7. The gas sampling preprocessing device integrated in a gas sensor module as described in claim 6, characterized in that, It also includes a non-slip sleeve on the grip (53).

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