Atmospheric pollutant sampling device

Abstract

The utility model discloses an atmospheric pollutant sampling device which comprises a machine shell, wherein an air pump and a sampling container are arranged in the machine shell; a supporting frame is formed on the inner side of the machine shell, the air pump is fixedly assembled at the bottom of the supporting frame, the sampling container is arranged on the upper portion of the supporting frame and comprises a plurality of air boxes arranged side by side, rotating shafts are installed at the corners of the air boxes in a penetrating mode, the two ends of each rotating shaft are fixed to the supporting frame, and buckles are arranged at the positions, corresponding to 90-degree rotation, of the rotating shafts of the supporting frame. A single air box can rotate through the rotating shaft, and is locked through a buckle after rotating to 90 degrees; the air box is provided with an air inlet and an air outlet, the air inlet and the air outlet are sealed through independent sealing plugs, and the air inlet and the air outlet are each provided with a connector matched with an air pump nozzle. The portable sampling device has the advantages of being portable in design, high in integration level, compact in structure, easy and convenient to operate and the like, and atmospheric pollutant samples can be rapidly and accurately collected.

Description

Technical Field

[0001] The utility model belongs to a sampling device in the field of air pollution prevention and control, in particular to an air pollutant sampling device. Background Art

[0002] Air pollutants refer to substances that are discharged into the atmosphere due to human activities or natural processes and have harmful effects on humans and the environment. Air pollutants not only directly harm the health of humans, animals and plants in the environment, but can also cause acid rain and damage the environment and climate.

[0003] In order to prevent and control air pollutants, it is necessary to first sample and analyze them, and then set a prevention and control plan based on the results of sampling and analysis. In the prior art, when sampling air pollutants in the field, it is mostly done manually using sampling bags, which has the defects of complex operation, low degree of automation, and low sampling efficiency; and the sampling bags used to store samples are not conducive to storage, and are prone to leakage during storage, or external gas enters, causing contamination of the gas samples stored in the sampling bags, affecting the accuracy of the gas analysis value.

[0004] Therefore, it is necessary to design an efficient, accurate and portable atmospheric pollutant sampling device to meet market demand and environmental protection requirements. Utility Model Content

[0005] The technical problem solved by the utility model is to provide an atmospheric pollutant sampling device to solve the shortcomings of the above-mentioned background technology.

[0006] The technical problem solved by the utility model is achieved by the following technical solutions:

[0007] An atmospheric pollutant sampling device comprises a housing, an air pump and a sampling container are arranged in the housing; a support frame is formed on the inner side of the housing, and the air pump is fixedly assembled at the bottom of the support frame.

[0008] The sampling container is arranged on the upper part of the support frame, which is a plurality of gas boxes arranged side by side. The plurality of gas boxes are provided with rotating shafts at the corner positions, and the two ends of the rotating shafts are fixed to the support frame. The rotating shafts of the support frame are provided with buckles corresponding to the 90° rotation position; a single gas box can be rotated by the rotating shaft, and locked by the buckle after rotating to 90°;

[0009] The air box is provided with an air inlet and an air outlet, the air inlet and the air outlet are closed by independent sealing plugs, and the air inlet and the air outlet are both provided with joints matching the air pump nozzle.

[0010] As a further limitation, a carrying structure or a handle is provided on the housing.

[0011] As a further limitation, a battery insertion position is provided on the air pump, the air pump is powered by a rechargeable battery, and a spare battery insertion position is also formed on the support frame.

[0012] As a further limitation, the gas box is a detachable structure on the supporting frame.

[0013] As a further limitation, the device also includes a sampling head, which is a flared structure with a filter and has a connector that matches the air inlet on the air box.

[0014] As a further limitation, the air box is a pressure-bearing air box, and air nozzles with valve cores are provided at the air inlet and the air outlet. The sealing plug is a pressure-bearing sealing plug, and the air pump is a bidirectional booster air pump.

[0015] As a further limitation, a component analysis device is also provided in the housing, the component analysis device has a sampling probe, and the gas box has a sampling jack matching the sampling probe;

[0016] A communication module is also provided in the housing, through which the sampling data of the component analysis device can be transmitted to an external device.

[0017] Beneficial effects: The atmospheric pollutant sampling device of the utility model structure can provide an accurate and efficient sampling means for atmospheric pollution prevention and control work. It adopts a portable design, high integration, compact structure, and simple operation in the sampling process. It can quickly and accurately collect atmospheric pollutant samples and improve sampling efficiency. It is especially suitable for outdoor sampling operations. At the same time, the box-structure sampling container can effectively avoid gas leakage and pollution during the sampling process, ensuring the accuracy of atmospheric pollutants during the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a preferred embodiment of the utility model.

[0019] Among them: 1. Sampling head; 2. Air inlet; 3. Volume chamber; 4. Air box; 5. Air outlet; 6. Air pump nozzle; 7. Air pump pipeline; 8. Air pump; 9. Rechargeable battery; 10. Stable base; 11. Gas component analyzer; 12. Handle; 13. Combination buckle; 14. Rotating shaft; 15. Buckle seat; 16. Insert buckle. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0021] See also Figure 1A preferred embodiment of an atmospheric pollutant sampling device is provided. In this embodiment, the atmospheric pollutant sampling device is a portable device structure of a handheld type, which includes a casing, and the casing is a stainless steel casing. The entire sampling device is outlined on the outside, and a handle 12 is formed on the surface of one side of the casing. The entire device can be easily carried by the handle 12.

[0022] A support frame is formed on the inner side of the casing to support the corners of the entire casing. The casing uses the inner space of the support frame as the equipment volume space. The equipment volume space is divided by a partition in the middle position. The upper space of the partition is a sampling container placement cavity, and the lower space is a component cavity.

[0023] In this embodiment, a gas composition analyzer 11 and an air pump 8 are provided in the component cavity. The gas composition analyzer 11 and the air pump 8 are integrated in the component cavity and controlled through a control panel. The electrical components in the component cavity are powered by a rechargeable battery 9. At the same time, a spare battery compartment for storing multiple rechargeable batteries 9 is also preset in the component cavity, and the equipment can increase the outdoor operation time by carrying multiple rechargeable batteries 9.

[0024] The casing is also provided with a stable base 10 with a counterweight unit at the lower part corresponding to the component cavity, and the stable base 10 is used to keep the equipment stable during gas extraction operations.

[0025] In this embodiment, the sampling container placement cavity is provided with a plurality of gas boxes 4 as sampling containers in parallel, the side of the gas box 4 is rectangular, and the sampling container placement cavity is stacked in the width direction of the gas box 4, and the plurality of gas boxes 4 can perform multiple sampling operations. The gas box 4 is provided with a rotating shaft 14 at the upper left corner, and the two ends of the rotating shaft 14 are fixed to the supporting frame, and can be rotated by the rotating shaft 14. The device is formed with a matching combination buckle 13 on the inner side wall of the sampling container placement cavity and the corresponding surface of the gas box 4, and a matching plug buckle 16 is formed on the upper left position of the casing and the corresponding surface of the gas box 4. When the gas box 4 is in the storage state, it is fixed in the sampling container placement cavity by the combination buckle 13 and is in a 0° rotation angle state, and when the gas box 4 is in the sampling state, the plug buckle 16 can be used to fix the gas box 4 in a 90° rotation angle state; the combination buckle 13 is an elastic buckle, which is released by applying a pulling force on the outside of the gas box 4; and the plug buckle 16 is arranged on the buckle seat 15, the outer end of which extends out of the buckle seat 15, and a release button is arranged at the outer end, and the plug buckle 16 can be released by pushing the release button.

[0026] The air box 4 of this embodiment is provided with an air inlet 2 and an air outlet 5, and the air inlet 2 and the air outlet 5 are formed with the same joint structure, and the accessories matching the joint structure include a sampling head 1, a sealing plug and an air pump nozzle 6, wherein the sampling head 1 has an expanded structure with a filter, and the air pump nozzle 6 can be connected to an air pump 8 through an air pump pipeline 7. In other embodiments, in order to facilitate the sampling head 1, the sealing plug, the air pump pipeline 7 and the air pump nozzle 6, an accessory cavity can be reserved in the housing of the device to place the above-mentioned structural parts.

[0027] When sampling atmospheric pollutants in this embodiment, the device is first placed and maintained upright using a stable base 10, as shown in the figure in the upright state, and then the corresponding gas box 4 that has not been sampled is pulled out by external force to maintain a 90° horizontal state as shown in the figure. The gas box 4 in the horizontal state is fixed and maintained by the buckle 16, and the gas sampling operation can be carried out. When performing the gas sampling operation, the sampling head 1 is assembled and connected at the position of the air inlet 2, and then the two ends of the air pump pipeline 7 are respectively connected to the air pump nozzle 6 and the air pump 8, and then the air pump nozzle 6 is assembled and connected to the air outlet 5; then the air pump 8 is started to extract air into the volume chamber 3 of the air box 4, and the air pump 8 is started and maintained for a certain period of time to first discharge the original gas in the volume chamber 3, and then allow the ambient gas to enter the volume chamber 3 of the air box 4. After stabilization, the air inlet 2 and the air outlet 5 are closed using a sealing plug, and then the air box 4 is restored to the sampling container placement cavity, and a label is affixed to complete a single gas sample collection.

[0028] In another embodiment, the gas box 4 is a pressure-bearing gas box, and an air nozzle with a valve core is provided at the air inlet 2 and the air outlet 5. The corresponding sealing plug is a pressure-bearing sealing plug, and the corresponding air pump is a bidirectional booster air pump. When pressurized gas sampling is required, the original gas in the volume chamber 3 is first discharged by using the sampling head 1 and the air pump 8 and maintained for a period of time, and then the sampling head 1 is taken out and sealed with a sealing plug at the air inlet 2. At the same time, the working mode of the air pump 8 is adjusted to pump air into the volume chamber 3 and continuously increase the pressure. When the set pressure value is reached, the air outlet 5 is closed by using the pressure-bearing sealing plug, thereby completing the pressurized gas sampling operation of the gas box 4.

[0029] In addition, the gas composition analyzer 11 in this embodiment has a sampling probe, which is connected to the matching sampling jack on the gas box 4. The gas composition analyzer 11 can perform on-site rough sampling of the gas and pollutants in the gas box 4, and transmit the sampling data to an external device through the built-in communication module in the gas composition analyzer 11.

[0030] After the sampling is completed, the user can send the gas sample in the gas box 4 to the laboratory for a more complete and systematic composition analysis, thereby providing an accurate and efficient reference for air pollution prevention and control work.

[0031] In another embodiment, in order to further improve the practicality and convenience of the device, the gas box 4 can be set as a detachable structure on the support frame. Specifically, the shaft 14 can be set as a removable structure with a locking structure, and the corresponding gas box 4 can be pulled out by unlocking and pulling out the shaft 14, so as to facilitate the transfer of gas samples, cleaning of contaminated gas boxes, replacement of damaged gas boxes, etc.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An atmospheric pollutant sampling device, characterized in that: It includes a casing, in which an air pump and a sampling container are arranged; a support frame is formed on the inner side of the casing, and the air pump is fixedly assembled at the bottom of the support frame. The sampling container is arranged on the upper part of the support frame, which is a plurality of gas boxes arranged side by side. The plurality of gas boxes are provided with rotating shafts at the corner positions, and the two ends of the rotating shafts are fixed to the support frame. The rotating shafts of the support frame are provided with buckles corresponding to the 90° rotation position; a single gas box can be rotated by the rotating shaft, and locked by the buckle after rotating to 90°; The air box is provided with an air inlet and an air outlet, the air inlet and the air outlet are closed by independent sealing plugs, and the air inlet and the air outlet are both provided with joints matching the air pump nozzle.

2. The air pollutant sampling device according to claim 1, characterized in that: The housing is provided with a carrying structure or a handle.

3. The air pollutant sampling device according to claim 1, characterized in that: The air pump is provided with a battery insertion position, the air pump is powered by a rechargeable battery, and a spare battery insertion position is also formed on the support frame.

4. The air pollutant sampling device according to claim 1, characterized in that: The gas box is a detachable structure on the supporting frame.

5. The air pollutant sampling device according to claim 1, characterized in that: The device also includes a sampling head, which is an expanded structure with a filter screen and has a connector that matches the air inlet on the air box.

6. The air pollutant sampling device according to claim 1, characterized in that: The air box is a pressure-bearing air box, and air nozzles with valve cores are arranged at the air inlet and the air outlet. The sealing plug is a pressure-bearing sealing plug, and the air pump is a two-way booster air pump.

7. The air pollutant sampling device according to claim 1, characterized in that: A component analysis device is also arranged in the casing. The component analysis device has a sampling probe, and the gas box has a sampling jack matching the sampling probe.

8. The air pollutant sampling device according to claim 7, characterized in that: A communication module is also provided in the housing, through which the sampling data of the component analysis device can be transmitted to an external device.

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