Multi-channel switching atmospheric detection sampling device

Abstract

The utility model provides a kind of multi-channel switching atmospheric detection sampling equipment, including detection box, the accommodating cavity and the gas guide cavity are arranged in the detection box, the accommodating cavity is provided with several air bags, the gas guide cavity is provided with intake manifold. The utility model has the advantages that: by setting up intake box, intake manifold, intake fan, intake branch pipe, first solenoid valve, gas guide pipe and second solenoid valve and other structures, when sampling work is carried out, open corresponding first solenoid valve and second solenoid valve according to needs, start intake fan, intake fan drives airflow to enter intake manifold through corresponding intake branch pipe, and enters corresponding air bag through corresponding gas guide pipe. When gas enters air bag, air bag expands to open detection cover, prompting staff to carry out gas detection on air bag. Multiple intake branch pipes cooperate with intake manifold, intake fan and other structures, can collect gas samples from multiple gas sources, and have stronger applicability.

Description

Technical Field

[0001] This utility model relates to the field of atmospheric detection technology, and in particular to a multi-channel switching atmospheric detection sampling device. Background Technology

[0002] Various harmful gases in the air, such as sulfur dioxide and nitrogen oxides, pose a significant threat to human health, and the human living environment is deteriorating. The primary function of a fully automated multi-channel gas path switching sampling system is to collect emitted gases and conduct experimental analysis on the collected gases to determine their composition and content, thereby concluding whether the emitted gases require harmless treatment.

[0003] An existing multi-channel sampling device uses a motor to drive a hollow rotating shaft, connecting its air inlet to a corresponding pipe. A fan then draws gas into the corresponding air chamber to sample the gas. However, this device has a single air inlet pipe, making it unsuitable for use with multiple gas sources, and its applicability needs improvement. Therefore, a multi-channel switching atmospheric detection and sampling device is proposed as an improvement. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to propose a multi-channel switching atmospheric detection and sampling device to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a multi-channel switching atmospheric detection and sampling device, including a detection box. The detection box is provided with a receiving cavity and an air guiding cavity. The receiving cavity is provided with a plurality of airbags. The air guiding cavity is provided with a main air inlet pipe. An air inlet box connected to the main air inlet pipe is fixedly connected to the outside of the detection box. An air inlet fan is provided in the air inlet box. A plurality of air inlet branch pipes are fixedly connected to the air inlet box. A first solenoid valve is provided on the air inlet branch pipes. An air guiding pipe is provided between the main air inlet pipe and the airbags. A second solenoid valve is provided on the air guiding pipe. A one-way valve is provided on the air guiding pipe. A detection cover with a certain opening resistance is provided on the detection box.

[0007] Preferably, in any of the above embodiments, the receiving cavity is provided with multiple partitions, and the several airbags are separated by the partitions.

[0008] The above technical solution employs the following: The testing box provides an installation platform for the relevant testing components. A receiving cavity is created within it to provide space for the airbags. A partition is installed within the receiving cavity to separate multiple airbags, preventing them from interfering with each other.

[0009] Preferably, in any of the above embodiments, the main air intake pipe is located in the middle of the air guide chamber, and the airbag is equipped with a pressure relief valve.

[0010] The above technical solution provides installation space for the main air inlet pipe and the air delivery pipe within the gas delivery chamber. The airbag contains the gas sample to be tested. A valve can be installed on the airbag for use by the testing personnel during testing. The main air inlet pipe is positioned in the middle of the gas delivery chamber, facilitating the supply of gas to different airbags through different air delivery pipes. A pressure relief valve on the airbag allows some gas to be released when the internal pressure is high, preventing the airbag from rupturing.

[0011] Preferably, in any of the above solutions, the testing box is provided with an opening and closing door corresponding to the air guide chamber, and the air inlet box is fixedly connected to the testing box by a connecting plate and bolts.

[0012] The above technical solution involves installing an opening and closing door on the testing box to facilitate maintenance of the components inside the air guide chamber. The air inlet box provides installation space for the air intake fan and air intake branch pipe. The air inlet box is fixedly connected to the testing box via a connecting plate, allowing for easy disassembly when needed.

[0013] Preferably, in any of the above embodiments, the intake manifold includes a flexible hose section fixedly connected to the intake box and a rigid pipe section disposed at the end of the flexible hose section, and the first solenoid valve is disposed on the rigid pipe section.

[0014] The above technical solution employs an inlet branch pipe for connecting to an external gas source, introducing the target gas into the detection chamber. The inlet branch pipe includes a flexible hose section and a rigid hose section, facilitating both the connection of the inlet branch pipe to the external gas source and the installation of the first solenoid valve.

[0015] Preferably, in any of the above embodiments, an arc-shaped guide block is provided inside the main air intake pipe, and the one-way valve is located at the end of the air duct near the airbag.

[0016] The above technical solution involves: opening the corresponding first and second solenoid valves as needed, starting the intake fan, which drives the airflow through the corresponding intake branch pipe into the main intake pipe, and then through the corresponding air guide pipe into the corresponding airbag. An arc-shaped guide block is installed inside the main intake pipe to guide the airflow, facilitating gas entry into the air guide pipe. A one-way valve is installed on the air guide pipe to prevent reverse gas flow.

[0017] Preferably, as described in any of the above schemes, the detection cover is provided with a limit switch, and the detection box is provided with an indicator light that is electrically connected to the limit switch.

[0018] The above technical solution works as follows: when gas enters the airbag, the airbag inflates, opening the detection cover and indicating to staff that gas testing can be performed on the airbag. A limit switch is installed on the detection cover; when the cover is opened, the limit switch sends a signal, and an indicator light illuminates as a reminder.

[0019] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. This multi-channel switching atmospheric detection and sampling device, through its structure including an air inlet box, main air inlet pipe, air inlet fan, air inlet branch pipes, first solenoid valve, air guide pipe, and second solenoid valve, allows for efficient sampling. During sampling, the corresponding first and second solenoid valves are opened as needed, activating the air inlet fan. The fan drives airflow through the corresponding air inlet branch pipes into the main air inlet pipe, and then through the corresponding air guide pipe into the corresponding airbag. When gas enters the airbag, the airbag inflates, opening the detection cover and indicating to personnel that gas detection can begin. The multiple air inlet branch pipes, combined with the main air inlet pipe and air inlet fan, enable gas sample collection from multiple gas sources, enhancing its versatility.

[0020] 2. This multi-channel switching atmospheric detection and sampling device features a partition within the containment chamber, separating multiple airbags to prevent interference between them. The main air inlet pipe is positioned in the center of the air delivery chamber, facilitating air supply to different airbags via various air delivery pipes. A pressure relief valve on each airbag allows some gas to be released when the internal pressure is high, preventing airbag rupture. The air inlet box is fixedly connected to the detection box via a connecting plate, allowing for easy disassembly when needed.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a schematic diagram of the second-view structure of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention.

[0023] In the diagram: 1-Detection box, 2-Containing cavity, 3-Air guide cavity, 4-Airbag, 5-Main air intake pipe, 6-Air intake box, 7-Air intake fan, 8-Air intake branch pipe, 9-First solenoid valve, 10-Air guide pipe, 11-Second solenoid valve, 12-One-way valve, 13-Detection cover, 14-Limit switch, 15-Indicator light. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1-3 As shown, this utility model includes a testing box 1, which has a receiving cavity 2 and an air guiding cavity 3. The receiving cavity 2 contains several airbags 4, and the air guiding cavity 3 contains an air intake manifold 5. An air intake box 6, which communicates with the air intake manifold 5, is fixedly connected to the outside of the testing box 1. An air intake fan 7 is installed in the air intake box 6. Several air intake branch pipes 8 are fixedly connected to the air intake box 6. A first solenoid valve 9 is installed on the air intake branch pipes 8. An air guiding pipe 10 is installed between the air intake manifold 5 and the airbags 4. A second solenoid valve 11 is installed on the air guiding pipe 10. A one-way valve 12 is installed on the air guiding pipe 10. A testing cover 13 with a certain opening resistance is installed on the testing box 1.

[0027] Example 1: Multiple partitions are installed within the receiving cavity 2, separating several airbags 4. The testing box 1 provides an installation platform for related testing components. The receiving cavity 2 is formed within it, providing space for the airbags 4. The partitions within the receiving cavity 2 separate the multiple airbags 4, preventing mutual interference between them. The main air inlet pipe 5 is located in the middle of the air guiding cavity 3, and a pressure relief valve is installed on each airbag 4. The air guiding cavity 3 provides installation space for the main air inlet pipe 5 and the air guiding pipe 10. The airbags 4 are used to contain the gas sample to be tested. A valve can be installed on the airbags 4 for use by testing personnel during testing. Positioning the main air inlet pipe 5 in the middle of the air guiding cavity 3 facilitates the supply of air to different airbags 4 through different air guiding pipes 10. The pressure relief valve on the airbag 4 allows some gas to be released when the internal pressure is high, preventing the airbag 4 from bursting.

[0028] Example 2: The test chamber 1 is equipped with an opening and closing door corresponding to the air guide chamber 3. The air inlet box 6 is fixedly connected to the test chamber 1 via a connecting plate and bolts. The opening and closing door on the test chamber 1 facilitates maintenance of the components inside the air guide chamber 3. The air inlet box 6 provides installation space for the air intake fan 7 and the air intake branch pipe 8. The air inlet box 6 is fixedly connected to the test chamber 1 via a connecting plate, allowing for easy disassembly when needed. The air intake branch pipe 8 includes a flexible hose section fixedly connected to the air inlet box 6 and a rigid pipe section located at the end of the flexible hose section. The first solenoid valve 9 is located on this rigid pipe section. The air intake branch pipe 8 is used to connect to an external air source, introducing the target gas into the test chamber 1. The air intake branch pipe 8 includes a flexible hose section and a rigid pipe section, facilitating both the connection of the air intake branch pipe 8 to an external air source and the installation of the first solenoid valve 9.

[0029] Example 3: An arc-shaped guide block is installed inside the main air intake pipe 5, and a one-way valve 12 is located at the end of the air duct 10 near the airbag 4. As needed, the corresponding first solenoid valve 9 and second solenoid valve 11 are opened, and the intake fan 7 is started. The intake fan 7 drives the airflow through the corresponding intake branch pipe 8 into the main air intake pipe 5, and then through the corresponding air duct 10 into the corresponding airbag 4. The arc-shaped guide block inside the main air intake pipe 5 guides the airflow, facilitating gas entry into the air duct 10. The one-way valve 12 on the air duct 10 prevents reverse gas flow. A limit switch 14 is installed on the detection cover 13, and an indicator light 15 electrically connected to the limit switch 14 is installed on the detection box 1. When gas enters the airbag 4, the airbag 4 inflates, opening the detection cover 13, indicating to the operator that gas testing of the airbag 4 is possible. The limit switch 14 on the detection cover 13 sends a signal when the detection cover 13 is opened, and the indicator light 15 illuminates as a reminder.

[0030] The working principle of this utility model is as follows: S1. Open the corresponding first solenoid valve 9 and second solenoid valve 11 as needed, start the intake fan 7, the intake fan 7 drives the airflow through the corresponding intake branch pipe 8 into the intake main pipe 5, and through the corresponding air guide pipe 10 into the corresponding airbag 4. S2. When gas enters airbag 4, airbag 4 inflates and opens the detection cover 13, indicating to staff that gas detection can be performed on airbag 4.

[0031] Compared with the prior art, the present invention has the following advantages: 1. This multi-channel switching atmospheric detection and sampling device, through the configuration of an air inlet box 6, an air inlet main pipe 5, an air inlet fan 7, air inlet branch pipes 8, a first solenoid valve 9, a guide pipe 10, and a second solenoid valve 11, allows for sampling by opening the corresponding first solenoid valve 9 and second solenoid valve 11 as needed, activating the air inlet fan 7. The air inlet fan 7 drives the airflow through the corresponding air inlet branch pipe 8 into the air inlet main pipe 5, and then through the corresponding guide pipe 10 into the corresponding airbag 4. When gas enters the airbag 4, the airbag 4 inflates, opening the detection cover 13, indicating to the operator that gas detection can be performed on the airbag 4. The multiple air inlet branch pipes 8, in conjunction with the air inlet main pipe 5 and air inlet fan 7, enable gas sampling from multiple gas sources, thus enhancing its applicability. 2. This multi-channel switching atmospheric detection and sampling device incorporates a partition within the receiving cavity 2, separating the multiple airbags 4 to prevent mutual interference between them. The main air intake pipe 5 is positioned in the middle of the air guide chamber 3, facilitating the supply of air to different airbags 4 via different air guide pipes 10. A pressure relief valve is installed on the airbag 4 to release some gas when the internal pressure is high, preventing the airbag 4 from bursting. The air intake box 6 is fixedly connected to the testing box 1 via a connecting plate, allowing for easy disassembly when needed.

Claims

1. A multi-channel switching atmospheric detection and sampling device, comprising a detection box (1); characterized in that, The detection box (1) is provided with a receiving cavity (2) and an air guiding cavity (3). The receiving cavity (2) is provided with several airbags (4). The air guiding cavity (3) is provided with an air intake main pipe (5). An air intake box (6) connected to the air intake main pipe (5) is fixedly connected to the outside of the detection box (1). An air intake fan (7) is provided in the air intake box (6). Several air intake branch pipes (8) are fixedly connected to the air intake box (6). A first solenoid valve (9) is provided on the air intake branch pipe (8). An air guiding pipe (10) is provided between the air intake main pipe (5) and the airbags (4). A second solenoid valve (11) is provided on the air guiding pipe (10). A one-way valve (12) is provided on the air guiding pipe (10). A detection cover (13) with a certain opening resistance is provided on the detection box (1).

2. The multi-channel switching atmospheric detection and sampling device as described in claim 1, characterized in that: The cavity (2) is provided with multiple partitions, and the several airbags (4) are separated by the partitions.

3. The multi-channel switching atmospheric detection and sampling device as described in claim 2, characterized in that: The main air intake pipe (5) is located in the middle of the air guide chamber (3), and the airbag (4) is equipped with a pressure relief valve.

4. The multi-channel switching atmospheric detection and sampling device as described in claim 3, characterized in that: The test box (1) is provided with an opening and closing door corresponding to the air guide chamber (3), and the air inlet box (6) is fixedly connected to the test box (1) by a connecting plate and bolts.

5. The multi-channel switching atmospheric detection and sampling device as described in claim 4, characterized in that: The intake branch pipe (8) includes a flexible hose section fixedly connected to the intake box (6) and a rigid pipe section disposed at the end of the flexible hose section, and the first solenoid valve (9) is disposed on the rigid pipe section.

6. The multi-channel switching atmospheric detection and sampling device as described in claim 5, characterized in that: An arc-shaped guide block is provided inside the main air intake pipe (5), and the one-way valve (12) is located at one end of the air duct (10) near the airbag (4).

7. The multi-channel switching atmospheric detection and sampling device as described in claim 6, characterized in that: The detection cover (13) is provided with a limit switch (14), and the detection box (1) is provided with an indicator light (15) that is electrically connected to the limit switch (14).

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