An air monitoring sampling storage device

Abstract

The utility model relates to environmental detection technical field, a kind of air monitoring sampling storage device, including protection cylinder, the inner wall of protection cylinder is fixedly installed with annular fixed support near top, the inner wall of annular fixed support is fixedly installed with air intake main pipe, the top of air intake main pipe is through the top of protection cylinder and extends, air intake main pipe outside is wound with spiral condenser pipe, the inner wall of protection cylinder is fixedly installed with water chiller with annular fixed support same height, water chiller is fixedly installed with spiral condenser pipe, the utility model discloses when needing to sample to multiple representative place, sampling and cooling treatment are carried out under the cooperation of air intake main pipe and spiral condenser pipe etc. structure, while storage mechanism carries out separate storage to the gas sampled each time, so cross contamination cannot be caused, sample composition can keep invariant, the accuracy and reliability of subsequent monitoring data also cannot produce adverse effect.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, and in particular to an air monitoring sampling and storage device. Background Technology

[0002] The atmospheric environment is crucial to the survival of organisms, encompassing the physical (such as temperature, humidity, wind speed, and air pressure) and chemical properties of air. Air is mainly composed of nitrogen, oxygen, and other gases. Human activities produce various gases such as nitrogen dioxide and sulfur dioxide, some of which can affect the health of organisms. Air monitoring has emerged as a result. It involves sampling air from specific areas to obtain samples, and analyzing these samples can provide insights into air quality, enabling timely human intervention to improve the situation when problems arise.

[0003] For example, an air sampling device disclosed in Chinese Patent No. CN219890845U involves a sampling pump collecting air, which is then transported through a delivery pipe. A spiral condenser is installed outside the delivery pipe to cool the air and liquefy the water vapor, thus achieving cooling and dehumidification of the air sample and preventing the high-temperature, high-humidity air sample from affecting the air monitoring results. A concave surface is provided on the inner bottom of the delivery pipe, allowing the condensed liquid water to flow along this surface and collect at the concave surface, preventing moisture from entering the sampling chamber and achieving water-vapor separation. While the above-mentioned document achieves cooling and dehumidification of the air during sampling, in practical applications, when assessing the overall air quality of an area, staff need to sample from multiple representative locations to reflect spatial distribution differences. If air samples from different locations are stored together in the same sampling chamber, cross-contamination is highly likely, leading to changes in sample composition and adversely affecting the accuracy and reliability of subsequent monitoring data. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: an air monitoring sampling and storage device, comprising a protective cylinder, an annular fixing bracket fixedly installed on the inner wall of the protective cylinder near the top, an air intake main pipe fixedly installed on the inner wall of the annular fixing bracket, the top end of the air intake main pipe penetrating the top of the protective cylinder and extending outward, a spiral condenser tube wound around the outer side of the air intake main pipe, a chiller fixedly installed on the inner wall of the protective cylinder at the same height as the annular fixing bracket, the chiller being fixedly installed with the spiral condenser tube, and an electric sampling fan blade fixedly installed on the inner wall of the air intake main pipe near the top. The inner wall of the protective cylinder and the lower side of the main air intake pipe are fixedly arranged in a circular array with multiple storage mechanisms for conveying and storing the collected gas respectively. The storage mechanisms are fixedly installed with the main air intake pipe.

[0005] As an improvement to the above technical solution, the storage mechanism includes a fixed disc, a conical cylinder, a drive motor, a rotating disc, an air intake cylinder, an air storage cylinder, and a rubber stopper. The fixed disc is fixedly installed on the inner wall of the protective cylinder and located below the main air intake pipe. A sealing ring groove is formed at the top of the fixed disc away from the center. A sealing block is movably engaged in the sealing ring groove. The conical cylinder is fixedly installed on the top of the sealing block. The top of the conical cylinder is fixedly installed to the bottom of the main air intake pipe. Multiple diversion holes are evenly arranged in a circle on the top of the fixed disc and inside the sealing ring groove. The drive motor is fixedly installed... At the bottom center of the fixed disc, the top end of the drive motor passes through the top of the fixed disc. The rotating disc is fixedly installed at the output end of the drive motor extending from the top of the fixed disc. The rotating disc is in contact with the fixed disc. A vent hole is opened at the top of the rotating disc, located away from the center. The air inlet cylinder is fixedly installed at the bottom of the fixed disc, located outside the diversion hole. Multiple air storage cylinders are evenly and uniformly arranged and fixedly installed on the bottom inner wall of the protective cylinder. The bottom end of the air storage cylinder passes through the bottom of the protective cylinder. The top end of the air storage cylinder is movably engaged with the air inlet cylinder. The rubber plug is movably engaged with the bottom end of the air storage cylinder.

[0006] As an improvement to the above technical solution, the end of the intake manifold extending from the top of the protective cylinder is designed in a horn shape.

[0007] As an improvement to the above technical solution, the center of the diversion hole and the vent hole are equidistant from the center of the fixed disk.

[0008] As an improvement to the above technical solution, the top of the rubber stopper is designed with rounded corners.

[0009] The beneficial effects of this utility model are as follows: when multiple representative locations need to be sampled, sampling and cooling are carried out in cooperation with structures such as the air intake pipe and the spiral condenser. At the same time, the storage mechanism stores the gas sampled each time separately, so as not to cause cross-contamination, the sample composition can remain unchanged, and it will not have an adverse effect on the accuracy and reliability of subsequent monitoring data. Attached Figure Description

[0010] Figure 1 This is a front view of the air monitoring sampling and storage device of this utility model; Figure 2 This is a cross-sectional view of the internal structure of this utility model; Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0011] Reference numerals: 1. Protective cylinder; 2. Circular ring fixing bracket; 21. Main air inlet pipe; 22. Spiral condenser tube; 23. Chiller; 24. Electric sampling fan blade; 3. Fixing disc; 31. Sealing ring groove; 32. Conical cylinder; 33. Diverter hole; 34. Drive motor; 35. Rotating disc; 36. Vent hole; 37. Air inlet cylinder; 38. Air storage cylinder; 39. Rubber stopper. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0013] Reference Appendix Figure 1 ,exist Figure 1 In the diagram, 'a' points to the front view and 'b' points to the right-side view. These views are only used to understand the scheme.

[0014] Please see Figure 1-3 This utility model provides a technical solution: an air monitoring sampling and storage device, including a protective cylinder 1, an annular fixing bracket 2 fixedly installed on the inner wall of the protective cylinder 1 near the top, an air intake pipe 21 fixedly installed on the inner wall of the annular fixing bracket 2, the top end of the air intake pipe 21 penetrating the top of the protective cylinder 1 and extending out, a spiral condenser tube 22 wound around the outer side of the air intake pipe 21, a chiller 23 fixedly installed on the inner wall of the protective cylinder 1 at the same height as the annular fixing bracket 2, the chiller 23 being fixedly installed with the spiral condenser tube 22, and an electric sampling fan blade 24 fixedly installed on the inner wall of the air intake pipe 21 near the top. Multiple storage mechanisms for conveying and storing collected gases are fixedly arranged in a circular array on the inner wall of the protective cylinder 1 and located below the air intake pipe 21. The storage mechanisms are fixedly installed with the air intake pipe 21.

[0015] In this implementation scheme, when multiple representative locations need to be sampled, sampling and cooling are carried out in cooperation with structures such as the intake pipe 21 and the spiral condenser 22. At the same time, the storage mechanism stores the gas sampled each time separately, so as not to cause cross-contamination, the sample composition can remain unchanged, and it will not have an adverse impact on the accuracy and reliability of subsequent monitoring data.

[0016] Specifically, the storage mechanism includes a fixed disc 3, a conical cylinder 32, a drive motor 34, a rotating disc 35, an air intake cylinder 37, an air storage cylinder 38, and a rubber stopper 39. The fixed disc 3 is fixedly installed on the inner wall of the protective cylinder 1 and located below the main air intake pipe 21. A sealing ring groove 31 is formed on the top of the fixed disc 3 away from the center. A sealing block is movably engaged in the sealing ring groove 31. The conical cylinder 32 is fixedly installed on the top of the sealing block. The top of the conical cylinder 32 is fixedly installed to the bottom of the main air intake pipe 21. Multiple diversion holes 33 are evenly arranged in a circle on the top of the fixed disc 3 and inside the sealing ring groove 31. The drive motor 34 is fixedly installed on the fixed disc 3. The bottom center of the disc 3 is connected to the top of the drive motor 34, which passes through the top of the fixed disc 3. The rotating disc 35 is fixedly installed at the output end of the drive motor 34 that extends out of the top of the fixed disc 3. The rotating disc 35 is in contact with the fixed disc 3. The top of the rotating disc 35 is provided with a vent hole 36 located away from the center. The air inlet cylinder 37 is fixedly installed at the bottom of the fixed disc 3 and located outside the diversion hole 33. The bottom inner wall of the protective cylinder 1 is uniformly arranged in a circular pattern with multiple air storage cylinders 38. The bottom end of the air storage cylinder 38 passes through the bottom of the protective cylinder 1. The top end of the air storage cylinder 38 is movably engaged with the air inlet cylinder 37. The rubber plug 39 is movably engaged with the bottom end of the air storage cylinder 38.

[0017] In this embodiment, the air sampled each time is stored separately by coordinating the internal structure of the storage mechanism, thereby avoiding cross-contamination.

[0018] Specifically, the end of the intake manifold 21 that extends out from the top of the protective cylinder 1 has a horn-shaped design.

[0019] In this embodiment, the sampling range of the intake manifold 21 is further expanded.

[0020] Specifically, the distances from the center of the diversion hole 33 and the vent hole 36 to the center of the fixed disk 3 are equal.

[0021] In this embodiment, the vent 36 is aligned with the designated diversion hole 33 when it rotates.

[0022] Specifically, the top of the rubber stopper 39 has a rounded corner design.

[0023] In this embodiment, the rubber stopper 39 is thus deformed and inserted into the bottom of the gas storage cylinder 38 for sealing.

[0024] In use, the device is controlled by a PLC, which manages all electrical components. When gas sampling is required at a representative location, the drive motor 34 is started first. The drive motor 34 drives the rotating disk 35 to rotate, which in turn drives the vent 36 to rotate. The vent 36 aligns with a designated diversion hole 33 during rotation. Then, the corresponding rubber plug 39 is removed. Next, the electric sampling fan 24 is started to collect the gas. Simultaneously, the chiller 23 is started. When the gas enters the main intake pipe 21 and flows, the chiller 23 and the spiral condenser 22 work together to cool and dehumidify the gas. The gas then enters the intake cylinder 37 through the vent 36 and the designated diversion hole 33, and is discharged from the intake cylinder 37 into the gas storage cylinder 38. At this point, due to the... With the bottom open, gas is discharged through the compressed gas storage cylinder 38. After a period of time, the rubber stopper 39 is plugged in, and the gas flowing into the gas storage cylinder 38 is stored. After the gas collection in the gas storage cylinder 38 is completed, the electric sampling fan blade 24 and the chiller 23 are turned off. At the same time, the drive motor 34 drives the rotating disk 35 to rotate, causing the vent 36 and the diversion hole 33 to be misaligned. The rotating disk 35 seals the gas storage cylinder 38, thus completing the gas collection and storage. Similarly, the working principle is the same when sampling other representative locations. The gas sampled each time is stored separately through the storage mechanism, so that cross-contamination will not occur, the sample composition will remain unchanged, and there will be no adverse impact on the accuracy and reliability of subsequent monitoring data.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An air monitoring sampling and storage device, comprising a protective cylinder (1), characterized in that: A circular fixing bracket (2) is fixedly installed on the inner wall of the protective cylinder (1) near the top. An air inlet pipe (21) is fixedly installed on the inner wall of the circular fixing bracket (2). The top end of the air inlet pipe (21) passes through the top of the protective cylinder (1) and extends out. A spiral condenser pipe (22) is wound around the outer side of the air inlet pipe (21). A chiller (23) is fixedly installed on the inner wall of the protective cylinder (1) at the same height as the circular fixing bracket (2). The chiller (23) is fixedly installed with the spiral condenser pipe (22). An electric sampling fan blade (24) is fixedly installed on the inner wall of the air inlet pipe (21) near the top. The inner wall of the protective cylinder (1) and the lower side of the air intake pipe (21) are fixedly arranged in a circular array with multiple storage mechanisms for conveying and storing the collected gas respectively. The storage mechanisms are fixedly installed with the air intake pipe (21).

2. The air monitoring sampling and storage device according to claim 1, characterized in that: The storage mechanism includes a fixed disc (3), a conical cylinder (32), a drive motor (34), a rotating disc (35), an air intake cylinder (37), an air storage cylinder (38), and a rubber stopper (39). The fixed disc (3) is fixedly installed on the inner wall of the protective cylinder (1) and located below the main air intake pipe (21). A sealing ring groove (31) is provided on the top of the fixed disc (3) away from the center. A sealing block is movably engaged in the sealing ring groove (31). The conical cylinder (32) is fixedly installed on the top of the sealing block. The top of the conical cylinder (32) is fixedly installed to the bottom of the main air intake pipe (21). Multiple diversion holes (33) are evenly arranged in a circle on the top of the fixed disc (3) and inside the sealing ring groove (31). The drive motor (34) is fixedly installed on the fixed disc (35). The bottom center of the protective cylinder (1) is the bottom of the protective cylinder (1). The top of the drive motor (34) passes through the top of the fixed disk (3). The rotating disk (35) is fixedly installed at the output end of the drive motor (34) extending out of the top of the fixed disk (3). The rotating disk (35) is in contact with the fixed disk (3). The top of the rotating disk (35) is provided with a vent hole (36) located away from the center. The air inlet cylinder (37) is fixedly installed at the bottom of the fixed disk (3) and located outside the diversion hole (33). The bottom inner wall of the protective cylinder (1) is uniformly arranged in a circular pattern and is fixedly installed with multiple air storage cylinders (38). The bottom end of the air storage cylinder (38) passes through the bottom of the protective cylinder (1). The top end of the air storage cylinder (38) is movably engaged with the air inlet cylinder (37). The rubber plug (39) is movably engaged with the bottom end of the air storage cylinder (38).

3. The air monitoring sampling and storage device according to claim 1, characterized in that: The end of the intake manifold (21) extending from the top of the protective cylinder (1) is designed in a horn shape.

4. An air monitoring sampling and storage device according to claim 2, characterized in that: The centers of the diversion holes (33) and the vent holes (36) are equidistant from the center of the fixed disk (3).

5. An air monitoring sampling and storage device according to claim 2, characterized in that: The top of the rubber stopper (39) is rounded.

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