Indoor air pollution source sampling device

Abstract

The utility model discloses an indoor air pollution source sampling device which comprises a sampling connecting cylinder and sampling units, a flow guide connecting seat is fixedly mounted in the sampling connecting cylinder, a sampling mounting body is arranged at the top end of the flow guide connecting seat, and a plurality of sampling holes for mounting the sampling units are equidistantly formed in the top end of the sampling mounting body. The sampling unit comprises a connecting mounting shell and a protective sleeve shell, the protective sleeve shell is mounted in the connecting mounting shell, a solid adsorption body is fixedly mounted in the protective sleeve shell, and a connecting pressing ring is mounted at the top of an inner cavity of the connecting mounting shell in a threaded manner; the bottom end of the sampling connecting cylinder is fixedly connected with an air outlet connecting cylinder. According to the utility model, indoor air is rapidly extracted through the flow guide fan, so that the indoor air passes through the solid-state adsorption body, pollution sources in the air are enriched by utilizing the solid-state adsorption body, the sampling speed is increased, the sampling effect is ensured, and relatively comprehensive indoor air collection can be carried out at a relatively low height.

Description

Technical Field

[0001] This utility model relates to the field of air sample collection technology, and in particular to an indoor air pollution source sampling device. Background Technology

[0002] In the current technology, air pollution is a major social problem, and there are many causes of air pollution. Therefore, in the process of air quality monitoring, it is necessary to monitor these pollution sources. The means of monitoring is to sample the air. Given the diversity of pollution sources, it is necessary to clearly define the types and quantities of samples to be taken.

[0003] A search revealed Chinese patent application number 202321822741.9, which discloses an air pollution source sampling device, comprising a sampling component for sampling air pollution sources and a support component for supporting the sampling component. The sampling component includes a placement plate with a sampling cavity at its top. Multiple sampling holes are arranged in an array inside the sampling cavity. A through hole is formed in the center of the placement plate, and a sealing ring is provided, which is adapted to the support component. The support component includes a mounting plate, the top of which is adapted to the bottom of the placement plate. One or more support feet are provided at the bottom of the mounting plate for supporting the sampling component. A downward-facing sealing groove is provided at the top of the sampling cavity, and a perforated cover is provided through the sealing groove. A protruding ring adapted to the sealing groove is provided at the bottom of the perforated cover. The inner side of the sampling holes is filled with a filter medium for filtering and adsorbing the sampled air.

[0004] The above-mentioned patent has the following shortcomings: The state of indoor pollutants in the air is determined by their own physicochemical properties and formation process. Indoor air pollutants can be roughly divided into two categories: gaseous pollutants and particulate pollutants. Generally, the concentration of indoor air pollutants is relatively small. For example, VOCs and combustion products diffuse disorderly. Using the above-mentioned device to sample indoor air by utilizing the natural flow of air results in a relatively slow overall sampling speed, which is not conducive to the rapid collection of indoor air samples. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an indoor air pollution source sampling device.

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

[0007] An indoor air pollution source sampling device includes: a sampling connecting cylinder and a sampling unit. A flow guide connecting seat is fixedly installed inside the sampling connecting cylinder. A sampling mounting body is located at the top of the flow guide connecting seat. Multiple sampling holes for installing the sampling unit are equidistantly spaced at the top of the sampling mounting body. The sampling unit includes a connecting mounting shell and a protective sleeve. The protective sleeve is installed inside the connecting mounting shell, and a solid adsorbent is fixedly installed inside the protective sleeve. A connecting pressure ring is threaded onto the top of the inner cavity of the connecting mounting shell. An air outlet connecting cylinder is fixedly connected to the bottom end of the sampling connecting cylinder. A fixed mounting frame is fixedly installed inside the air outlet connecting cylinder, and a flow guide fan is fixedly installed inside the fixed mounting frame.

[0008] As a further embodiment of this utility model: an exhaust noise reduction cylinder is fixedly installed at the bottom end of the exhaust connecting cylinder, a noise reduction cotton sleeve is fixedly connected to the inner wall of the bottom end of the exhaust noise reduction cylinder, and a noise reduction porous body is fixedly installed inside the noise reduction cotton sleeve.

[0009] As a further improvement of this utility model: a protective top cover is fixedly installed at the top of the sampling connecting tube, and a supporting frame is fixedly connected to the top of the inner cavity of the protective top cover.

[0010] As a further improvement of this utility model: a protective mesh plate is provided at the top of the supporting frame, and an installation pressure ring is provided at the top of the protective mesh plate.

[0011] As a further improvement of this utility model: multiple mounting threaded cylinders are fixedly connected at equal intervals to the bottom end of the sampling connecting cylinder, and a support connecting rod is fixedly installed inside the mounting threaded cylinder.

[0012] As a further improvement of this utility model: the bottom ends of the plurality of supporting connecting rods are fixedly connected to a rotating connecting frame, and rotating frame arms are rotatably connected to both the front and back sides of the rotating connecting frame.

[0013] As a further improvement of this utility model: a movable base is fixedly connected to the bottom end of the two rotating arms, and a rotating seat is fixedly connected to one side of the movable base.

[0014] As a further embodiment of this utility model: an electric telescopic rod is rotatably installed inside the rotating seat one, a rotating connector is fixedly installed at the top of the telescopic end of the electric telescopic rod, and a rotating seat two is rotatably connected to the outside of the rotating connector.

[0015] Compared with the prior art, this utility model provides an indoor air pollution source sampling device, which has the following beneficial effects:

[0016] 1. This indoor air pollution source sampling device rapidly extracts indoor air through a guide fan, allowing the indoor air to pass through a solid adsorbent. The solid adsorbent then concentrates the pollutants in the air, improving the sampling speed and ensuring the sampling effect. It can collect relatively comprehensive indoor air samples from a lower height.

[0017] 2. This indoor air pollution source sampling device uses a noise-reducing porous body to reduce airflow velocity and prevent high-speed air exhaust from causing excessive impact on indoor air and affecting air sampling. At the same time, it is used with a noise-reducing cotton cover to reduce the noise of air exhaust.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the overall assembly of this utility model;

[0020] Figure 2 This is a partial cross-sectional view of the overall assembly of this utility model.

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0022] Figure 4 This utility model Figure 2 A magnified structural diagram at point B in the middle.

[0023] In the diagram: 1. Movable base; 2. Rotating arm; 3. Rotating connecting frame; 4. Support connecting rod; 5. Installation threaded cylinder; 6. Sampling connecting cylinder; 7. Protective top cover; 8. Rotating seat one; 9. Electric telescopic rod; 10. Rotating connector; 11. Rotating seat two; 12. Flow guide connecting seat; 13. Sampling mounting body; 14. Air outlet connecting cylinder; 15. Fixed mounting frame; 16. Flow guide fan; 17. Exhaust noise reduction cylinder; 18. Noise reduction cotton sleeve; 19. Noise reduction porous body; 20. Sampling hole; 21. Connecting mounting shell; 22. Protective sleeve; 23. Solid adsorbent; 24. Connecting pressure ring; 25. Support frame; 26. Installation pressure ring; 27. Protective mesh plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] An indoor air pollution source sampling device, such as Figures 1 to 4The sample includes a sampling connecting cylinder 6 and a sampling unit. Multiple mounting threaded cylinders 5 are fixedly connected at equal intervals to the bottom end of the sampling connecting cylinder 6. Support connecting rods 4 are installed in the internal threads of the mounting threaded cylinders 5.

[0026] A rotating connecting frame 3 is welded to the bottom of multiple supporting connecting rods 4. A rotating frame arm 2 is rotatably connected to both the front and back sides of the rotating connecting frame 3. A movable base 1 is welded to the bottom of the two rotating frame arms 2. A rotating seat 8 is integrally formed on one side of the movable base 1.

[0027] An electric telescopic rod 9 is rotatably mounted inside the rotating base 8 via a pin. A rotating connector 10 is fixedly mounted on the top of the telescopic end of the electric telescopic rod 9. The rotating connector 10 is rotatably connected to a rotating base 11 via a pin. The rotating base 11 is welded to one side of the rotating connecting frame 3. The electric telescopic rod 9 drives the sampling connecting tube 6 to adjust its angle through the rotating connecting frame 3, so that the whole device can sample indoor air at a lower position.

[0028] Inside the sampling connecting tube 6, a flow guide connecting seat 12 is fixedly installed. At the top of the flow guide connecting seat 12 is a sampling mounting body 13. At the top of the sampling mounting body 13, multiple sampling holes 20 for installing sampling units are equidistantly opened. The flow guide connecting seat 12 guides the air passing through the sampling holes 20 in a concentrated manner.

[0029] The sampling unit includes a connecting mounting shell 21 and a protective shell 22. The protective shell 22 is installed inside the connecting mounting shell 21, and a solid adsorbent 23 is fixedly installed inside the protective shell 22. The solid adsorbent 23 includes, but is not limited to, activated carbon, silica gel, molecular sieve, etc., so that a large amount of air passes through the solid adsorbent, which enriches the pollutants with low concentration in the indoor air.

[0030] A connecting pressure ring 24 is threaded onto the top of the inner cavity of the connecting mounting shell 21, and the connecting pressure ring 24 fixes the protective sleeve 22 inside the connecting mounting shell 21.

[0031] The bottom end of the sampling connecting tube 6 is integrally formed with an air outlet connecting tube 14. A fixed mounting bracket 15 is fixedly installed inside the air outlet connecting tube 14. A guide fan 16 is fixedly installed inside the fixed mounting bracket 15. The guide fan 16 draws air from above the sampling connecting tube 6, allowing the air to pass through the solid adsorbent 23, which facilitates the adsorption of pollutants in the air by the solid adsorbent 23.

[0032] An exhaust noise reduction cylinder 17 is fixedly installed at the bottom end of the exhaust connection cylinder 14. A noise reduction cotton sleeve 18 is fixedly connected to the inner wall of the bottom end of the exhaust noise reduction cylinder 17. A noise reduction porous body 19 is fixedly installed inside the noise reduction cotton sleeve 18. The guide fan 16 discharges air through the noise reduction porous body 19. The noise reduction porous body 19 reduces the air flow rate and avoids high-speed air discharge, which may have too much impact on the indoor air and affect air sampling. At the same time, it works with the noise reduction cotton sleeve 18 to reduce the noise of air discharge.

[0033] A protective top cover 7 is fixedly installed at the top of the sampling connecting tube 6. A support frame 25 is fixedly connected to the top of the inner cavity of the protective top cover 7. A protective mesh plate 27 is provided at the top of the support frame 25. A mounting pressure ring 26 is provided at the top of the protective mesh plate 27. The mounting pressure ring 26 is threaded into the inside of the protective top cover 7.

[0034] Working principle:

[0035] Please refer to Figures 1 to 4 Assemble the device as shown in the figure, install sampling units inside multiple sampling holes 20 as needed, and snap the protective top cover 7 into the sampling connecting tube 6.

[0036] Control the extension length of the electric telescopic rod 9 as needed. Figure 1 As shown, the electric telescopic rod 9 has no extension, and the axis of the sampling connecting tube 6 is perpendicular to the moving base 1. Adjust the air intake angle (sampling angle) of the sampling connecting tube 6; then start the guide fan 16, which draws in indoor air. The indoor air passes through the protective mesh plate 27 and then through the solid adsorbent 23 inside the sampling hole 20. The pollutants in the air are adsorbed by the solid adsorbent 23, and the other air is guided by the noise reduction porous body 19. Under the blocking and noise reduction effect of the noise reduction porous body 19, the air is discharged through the exhaust noise reduction tube 17.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An indoor air pollution source sampling device, characterized by, The utility model relates to a sampling device, including: sampling connecting cylinder (6) and sampling unit, the inside fixed mounting of sampling connecting cylinder (6) has flow connection seat (12), the top of flow connection seat (12) has sampling mounting body (13), the top of sampling mounting body (13) equidistantly has a plurality of sampling hole (20) for installing sampling unit, sampling unit includes connecting installation shell (21) and protective sleeve shell (22), protective sleeve shell (22) is installed in connecting installation shell (21) inside, and the inside fixed mounting of protective sleeve shell (22) has solid adsorption body (23), and the inner chamber top of connecting installation shell (21) is screw mounted with connecting compression ring (24), the bottom of sampling connecting cylinder (6) is fixedly connected with gas outlet connecting cylinder (14), the inside fixed mounting of gas outlet connecting cylinder (14) has fixed mounting bracket (15), the inside fixed mounting of fixed mounting bracket (15) has flow fan (16). The bottom of gas outlet connecting cylinder (14) is fixedly installed with exhaust noise reduction cylinder (17), the bottom inner wall of exhaust noise reduction cylinder (17) is fixedly connected with noise reduction cotton cover (18), and the inside fixed mounting of noise reduction cotton cover (18) has noise reduction porous body (19).

2. The indoor air pollution source sampling device of claim 1, wherein: The top of sampling connecting cylinder (6) is fixedly installed with protective top cover (7), and the inner chamber top of protective top cover (7) is fixedly connected with support framework (25).

3. The indoor air pollution source sampling device of claim 1, wherein: The top of support framework (25) is provided with protective mesh plate (27), and the top of protective mesh plate (27) is provided with mounting compression ring (26).

4. The indoor air pollution source sampling device of claim 3, wherein: The bottom of sampling connecting cylinder (6) is equidistantly fixedly connected with a plurality of mounting threaded cylinder (5), and the inside fixed mounting of mounting threaded cylinder (5) has support connecting rod (4).

5. The indoor air pollution source sampling device of claim 1, wherein: The bottom of a plurality of support connecting rods (4) is fixedly connected with rotating connecting bracket (3), and the front and back of rotating connecting bracket (3) are rotatably connected with rotating bracket arm (2).

6. The indoor air pollution source sampling device of claim 5, wherein: The bottom of two rotating bracket arms (2) is fixedly connected with mobile base (1), and one side of mobile base (1) is fixedly connected with rotating seat one (8).

7. An indoor air pollution source sampling device according to claim 6, wherein: The inside of rotating seat one (8) is rotatably installed with electric telescopic rod (9), and the telescopic end top of electric telescopic rod (9) is fixedly installed with rotating connecting head (10), and the outside of rotating connecting head (10) is rotatably connected with rotating seat two (11).

8. The indoor air pollution source sampling device of claim 7, wherein: ​

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