Shipborne multi-dimensional air sample sampling device

Abstract

The utility model relates to a shipborne multi-dimensional air sample sampling device. Comprising a collecting box, a collecting cavity is formed in the collecting box, a sampling head is arranged in the collecting cavity, the upper end face of the collecting box is connected with a vertically-arranged air guide blade, and a collecting hole communicated with the collecting cavity and pointing to the sampling head is formed in the side face of the collecting box; a plurality of air holes are formed in the outer side wall of a base of the vacuum assembly, a vacuum pump is arranged in an inner cavity of the base, an adapter is of a columnar structure provided with a vertically-through communicating cavity, the adapter is detachably connected to the upper end of the base, an access hole is rotatably connected to the upper end of the adapter, and a collecting cavity, the communicating cavity and the vacuum pump are sequentially communicated. The horizontal plate and the air guide blades are arranged to change the direction of the sampling device, the direction can be adjusted in time according to small changes of the wind direction, and therefore the sampling direction can be adjusted according to the wind direction, the sampling device can be placed at different heights through the mast mounting holes, air samples can be collected at different height layers, and the sampling efficiency is improved. And the marine atmosphere monitoring efficiency is greatly optimized.

Description

Technical Field

[0001] The utility model belongs to the field of air sample collection equipment of environmental monitoring technology, and specifically relates to a shipborne multi-dimensional air sample sampling device. Background Art

[0002] In recent years, the quality of my country's coastal environment has been deteriorating, pollution damage incidents have occurred frequently, and land-based pollution control has not effectively achieved a global transformation in the quality of the marine environment. Marine monitoring is an important means of environmental supervision and pollution control. However, in existing shipborne environmental monitoring, air samples can only be collected from a single height, which often cannot fully reflect the complex structure of the marine atmosphere and the distribution of pollution. It is impossible to obtain air samples collected at different altitudes from sea level to tens of meters high, and it is impossible to depict the changes in the vertical distribution of pollutants. Sampling of air samples at different altitudes is crucial for studying the pollution diffusion pattern, gas exchange process and its impact on the marine ecosystem in the marine atmosphere.

[0003] The current method of collecting air samples is to collect air samples on touch tape and then analyze them. Specific chemical analysis or spectral analysis techniques are usually used to detect and analyze pollutants in the air. Samples can be analyzed by chromatography, mass spectrometry, infrared spectroscopy and other methods to determine the chemical composition and concentration in the air samples. In order to distinguish samples at different times, time labels can be preset on the tape or a time coding system can be used. After each sample is collected, the time sequence and collection time of the samples are ensured to be consistent by recording the time labels. In this way, the collection time of each sample can be accurately tracked, which is convenient for subsequent analysis and comparison of air quality changes at different time points. This design not only improves the sampling efficiency, but also provides richer and more accurate data support for environmental science research. However, the current directional air sample collection device cannot adjust the sampling direction according to the real-time wind direction, cannot collect data from the most critical direction, and cannot improve the representativeness of the sample and the accuracy of the monitoring data. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a shipborne multi-dimensional air sample sampling device, which is provided with a flat plate and a wind guide vane for converting the direction of the sampling device. At the same time, a bearing is used to connect the collection box and the adapter seat, so that the direction can be adjusted in time for slight changes in wind direction, thereby realizing wind direction adjustment of the sampling direction. In addition, a mast mounting hole is provided, so that the sampling device can be placed on masts of different heights to realize the collection of air samples at different altitudes, greatly optimizing the efficiency of marine atmosphere monitoring.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A shipborne multi-dimensional air sample sampling device comprises a sampling assembly, an adapter and a vacuum assembly, the sampling assembly comprises a collection box and a sampling head, the collection box consists of a cover plate and a box body, the sampling head is connected to the bottom of the cover plate, the cover plate covers the upper opening of the box body, the cover plate is provided with a butterfly screw, the butterfly screw cooperates with the screw hole on the box body, a collection cavity is provided in the box body, the lower end of the box body is provided with an access hole opening downward, a flat plate is provided at the edge of the upper opening of the box body, the flat plate and the air guide vane are respectively arranged on the opposite side walls of the box body, the flat plate and the plane where the air guide vane are located are perpendicular to each other, and a collection hole connected to the collection cavity and pointing to the sampling head is provided on the side surface of the box body on the same side as the flat plate;

[0007] The vacuum assembly includes a base, a vacuum pump and a fixed base. The outer side wall of the base is provided with a plurality of air holes respectively arranged on the outer side wall of the base and the bottom wall of the base. The fixed base is a "X"-shaped structure with a supporting foot connected to the lower end of a circular ring. The vacuum pump is sleeved in the circular ring. The lower end of the supporting foot is detachably connected to the bottom of the base. The adapter is a columnar structure with a connecting cavity running through the upper and lower parts. The adapter is detachably connected to the upper end of the base. The access hole is rotatably connected to the upper end of the adapter through a bearing. The collection chamber, the connecting chamber and the vacuum pump are connected in sequence.

[0008] The shipborne multi-dimensional air sample sampling device adopting this structure first provides a storage space for the sampling head, that is, a collection box composed of a cover plate and a box body is provided, and a collection cavity is enclosed by the cover plate and the box body, and the sampling head is arranged at the bottom of the cover plate. When the cover plate is closed on the box body and screwed into the screw hole on the box body through a butterfly screw, the sampling head will extend into the collection cavity. Since an air sample needs to enter the collection cavity so that the sampling head can collect the air sample in the air, a collection hole connected to the collection cavity and pointing to the sampling head is provided on the side of the box body, providing an entrance to the collection cavity. However, only opening the collection hole cannot allow the air sample in the air to actively enter the collection cavity, so air needs to actively enter the collection hole. Therefore, a vacuum pump is provided in the base of the vacuum component, and the base and the box body are connected by an adapter, so that the collection cavity and the connecting cavity on the adapter are connected, and connected to the vacuum pump in the base, and the vacuum pump provides air negative pressure to suck air from the outside of the sampler into the collection hole. After entering the collection cavity, the air The air will directly hit the sampling head, and the air sample will stay on the touch tape wrapped around the sampling head. The excess air will flow through the connecting cavity and the vacuum pump in turn, enter the space of the base, and escape from the air holes on the outer wall of the base. However, the stationary sampler can only collect air in one direction. In order to achieve all-round air sample collection, a flat plate is provided at the edge of the upper opening of the box. The flat plate and the air guide vane are respectively arranged on the opposite side walls of the box. The planes where the flat plate and the air guide vane are located are perpendicular to each other. The access hole at the bottom of the box is rotatably connected to the upper end of the adapter through a bearing, and the lower end of the adapter is detachably connected to the upper end of the base for fixation. Therefore, when wind blows on the flat plate and the air guide blades, the wind will first be cut horizontally, dividing a wind into two parts, and then blow through the box, and then blow on the air guide blades. The force of wind pressure on the air guide blades can turn the box, so that the collection hole can always face the wind direction, and the air sample in the air can be collected all the time during the wind blowing process.

[0009] Since the sampling device is set outdoors, it is inevitable to encounter rain in the process of collecting air samples. Under the action of wind, rainwater is likely to be blown into the base through the air holes. If the air holes are not set on the bottom wall of the base, water will accumulate in the base, causing the vacuum pump to be soaked in water and damaged. Therefore, in addition to setting air holes on the bottom wall of the base to drain excess water in the base, a fixed seat is also set for the installation of the vacuum pump, so that the vacuum pump has a certain height distance relative to the inner bottom of the base to avoid possible water accumulation and soaking of the vacuum pump. In addition, the flat plate at the upper end of the collection hole can shield the upper end of the collection hole to prevent rainwater from entering the collection cavity from the collection hole.

[0010] Furthermore, it also includes a limit assembly, which includes a limit seat, a limit plate and a limit groove, the limit seat is fixedly connected to the upper end of the base, the limit groove is arranged on the outer side wall of the lower end of the collection box, one end of the limit plate can be rotatably connected to the limit seat, and the other end of the limit plate can be abutted and connected in the limit groove; a handle is provided on the outer side wall of the base; a plurality of base feet are provided at the bottom of the base; and a mast mounting hole is provided at the bottom of the base.

[0011] Compared with the prior art, the utility model has the following advantages: through the operation of the vacuum pump in the base, the air in the connecting chamber and the collecting chamber connected in sequence at its upper end is pumped out in the direction of the vacuum pump, so that the external air is sucked into the collecting chamber from the collecting hole and hits the touch tape on the sampling head, thereby realizing the collection of air samples on the sampling head. The adapter provided between the box body and the base has its lower end fixed on the base and its upper end connected to the access hole through a bearing, so that the box body can rotate, and the flat plate and the guide vane are arranged, and the force of the wind pressure on the guide vane is used to turn the box body, so that the collecting hole can always face the wind direction, and the air sample in the air can be collected all the time during the wind blowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a front perspective view of the utility model;

[0014] Figure 2 It is a rear view of the utility model;

[0015] Figure 3 It is an explosion diagram of the utility model;

[0016] Figure 4 It is a top view of the utility model;

[0017] Figure 5 For the utility model Figure 4 AA section view.

[0018] Among them: 1. Sampling component; 11. Collection box; 111. Collection cavity; 112. Access hole; 113. Guide vane; 114. Collection hole; 115. Cover plate; 116. Box body; 117. Butterfly screw; 118. Screw hole; 119. Flat plate; 2. Adapter seat; 21. Connecting cavity; 22. Bearing; 3. Vacuum component; 31. Base; 311. Air vent; 312. Handle; 313. Base foot; 32. Vacuum pump; 33. Fixed seat; 331. Ring; 332. Support foot; 4. Limiting component; 41. Limiting seat; 42. Limiting plate; 43. Limiting groove. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0020] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0021] like Figure 1-5 As shown, a shipborne multi-dimensional air sample sampling device includes a sampling component 1, an adapter 2 and a vacuum component 3. The sampling component 1 includes a collection box 11 and a sampling head. The collection box 11 is composed of a cover plate 115 and a box body 116. The sampling head is connected to the bottom of the cover plate 115. The cover plate 115 covers the upper end opening of the box body 116. The cover plate 115 is provided with a butterfly screw 117. The butterfly screw 117 cooperates with a screw hole 118 on the box body 116. A collecting chamber 111 is provided in the box body 116, an access hole 112 opening downward is provided at the lower end of the box body 116, a flat plate 119 is provided at the edge of the upper opening of the box body 116, the flat plate 119 and the air guide vane 113 are respectively provided on the opposite side walls of the box body 116, the flat plate 119 and the plane where the air guide vane 113 are located are perpendicular to each other, and a collecting hole 114 connected to the collecting chamber 111 and pointing to the sampling head is provided on the side surface of the box body 116 on the same side as the flat plate 119;

[0022] The vacuum assembly 3 includes a base 31, a vacuum pump 32 and a fixed base 33. The outer wall of the base 31 is provided with a plurality of air holes 311 respectively arranged on the outer wall of the base 31 and the bottom wall of the base 31. The fixed base 33 is a "X"-shaped structure with a supporting foot 332 connected to the lower end of a circular ring 331. The vacuum pump 32 is sleeved in the circular ring 331. The lower end of the supporting foot 332 is detachably connected to the bottom of the base 31. The adapter 2 is a columnar structure with a connecting cavity 21 running through the upper and lower ends. The adapter 2 is detachably connected to the upper end of the base 31. The access hole 112 is rotatably connected to the upper end of the adapter 2 through a bearing 22. The collection chamber 111, the connecting cavity 21 and the vacuum pump 32 are connected in sequence.

[0023] Furthermore, it also includes a limit assembly 4, which includes a limit seat 41, a limit plate 42 and a limit groove 43. The limit seat 41 is fixedly connected to the upper end of the base 31, and the limit groove 43 is arranged on the outer side wall of the lower end of the collection box 11. One end of the limit plate 42 can be rotatably connected to the limit seat 41, and the other end of the limit plate 42 can be abutted and connected in the limit groove 43; a handle 312 is provided on the outer side wall of the base 31; a plurality of base feet 313 are provided at the bottom of the base 31; and a mast mounting hole is provided at the bottom of the base 31.

[0024] Description of the working method of this utility model:

[0025] The shipborne multi-dimensional air sample sampling device adopting this structure first provides a storage space for the sampling head, that is, a collection box 11 composed of a cover plate 115 and a box body 116 is set, and a collection chamber 111 is enclosed by the cover plate 115 and the box body 116. The sampling head is set at the bottom of the cover plate 115. When the cover plate 115 is closed on the box body 116 and screwed into the screw hole 118 on the box body 116 through the butterfly screw 117, the sampling head will extend into the collection chamber 111. Since the air sample needs to enter the collection chamber 111, the sampling head can collect the air sample in the air, so on the side of the box body 116 A collection hole 114 is provided which is connected to the collection chamber 111 and points to the sampling head, and provides an entrance to the collection chamber 111. However, only opening the collection hole 114 does not allow the air sample in the air to actively enter the collection chamber 111. Therefore, air needs to be able to actively enter the collection hole 114. Therefore, a vacuum pump 32 is provided in the base 31 of the vacuum assembly 3. The base 31 and the box 116 are connected through the adapter 2. Therefore, the collection chamber 111 is connected to the connecting chamber 21 on the adapter 2, and is connected to the vacuum pump 32 in the base 31. The vacuum pump 32 provides negative air pressure to suck air from the outside of the sampler into the collection hole 114. 14, the air entering the collection chamber 111 will directly hit the sampling head, and the air sample will stay on the touch tape wrapped around the sampling head. The excess air will flow through the connecting chamber 21 and the vacuum pump 32 in turn, enter the space of the base 31, and escape from the air vents 311 on the outer wall of the base 31. However, the stationary sampler can only collect air in one direction. In order to achieve all-round air sample collection, a flat plate 119 is provided at the edge of the upper opening of the box body 116. The flat plate 119 and the air guide vane 113 are respectively arranged on the opposite side walls of the box body 116. The flat plate 119 and the air guide vane 113 are located on the same plane. The surfaces are perpendicular to each other, and the access hole 112 at the bottom of the box body 116 is rotatably connected to the upper end of the adapter 2 through a bearing 22, and the lower end of the adapter 2 is detachably connected to the upper end of the base 31 for fixation. Therefore, when the wind blows on the flat plate 119 and the guide vane 113, the wind will first be cut horizontally, dividing a wind into two parts, and then blow through the box body 116, and then blow on the guide vane 113. The force of the wind pressure on the guide vane 113 is used to turn the box body 116, so that the collection hole 114 can always face the wind direction, and the air sample in the air can be collected all the time during the wind blowing process.

[0026] Since the sampling device is set outdoors, it is inevitable to encounter rain during the process of collecting air samples. Under the action of wind, rainwater is likely to be blown into the base 31 from the air vent 311. If the air vent 311 is not set on the bottom wall of the base 31, water will accumulate in the base 31, causing the vacuum pump 32 to be soaked in water and damaged. Therefore, in addition to setting the air vent 311 on the bottom wall of the base 31 for draining excess water in the base 31, a fixing seat 33 is also set for the installation of the vacuum pump 32, so that the vacuum pump 32 has a certain height distance relative to the inner bottom of the base 31 to avoid possible water accumulation and soaking of the vacuum pump 32. In addition, the flat plate 119 at the upper end of the collection hole 114 can shield the upper end of the collection hole 114 to prevent rainwater from entering the collection chamber 111 from the collection hole 114.

[0027] When the sampler does not need to be operated, or only needs to collect air in one direction, the box 116, which can rotate due to the wind pressure of the guide blades 113, needs to be restricted. Therefore, a limit assembly 4 is provided, a limit seat 41 on the base 31, and a limit groove 43 at the lower end of the box 116. A limit plate 42 is rotatably connected to the limit seat 41. By rotating the limit plate 42, the limit plate 42 is clamped in the limit groove 43 to fix the position of the box 116. The handle 312 on the outer wall of the base 31 is used to manually rotate the direction, and the base foot 313 provides the necessary support force for the base 31. It can also be installed on a mast and fixed through the mast mounting hole for collecting air samples at different heights.

[0028] The beneficial effect of the utility model is that through the operation of the vacuum pump 32 in the base 31, the air in the connecting chamber 21 and the collecting chamber 111 which are connected in sequence at the upper end thereof is pumped out in the direction of the vacuum pump 32, so that the external air is sucked into the collecting chamber 111 from the collecting hole 114 and hits the touch tape on the sampling head, so as to realize the collection of air samples on the sampling head. The adapter 2 provided between the box body 116 and the base 31 has a lower end fixed on the base 31 and an upper end connected to the access hole 112 through a bearing 22, so that the box body 116 can rotate, and the flat plate 119 and the guide vane 113 provided, through the force of wind pressure on the guide vane 113, turn the box body 116, so that the collecting hole 114 can always face the wind direction, and can keep collecting air samples in the air during the wind blowing, and is fixed through the mast mounting hole for collecting air samples at different heights.

[0029] The device can automatically collect air samples at different heights and directions. By integrating adjustable sampling height and automatic wind guide vanes, it can realize dynamic monitoring of multi-level, multi-directional and multi-dimensional atmospheric components in the marine atmosphere to adapt to complex and changeable marine environmental conditions. It provides a new and effective tool for marine scientific research and environmental protection, and improves the limitations of traditional shipborne air sampling technology.

[0030] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A shipborne multi-dimensional air sample sampling device, characterized in that: It comprises a sampling assembly, an adapter and a vacuum assembly, wherein the sampling assembly comprises a collection box and a sampling head, wherein a collection cavity is arranged in the collection box, an access hole opening downward is arranged at the lower end of the collection box, the sampling head is arranged in the collection cavity, a vertically arranged air guide vane is connected to the upper end surface of the collection box, and a collection hole communicating with the collection cavity and pointing to the sampling head is arranged on the side of the collection box; The vacuum assembly includes a base and a vacuum pump. A plurality of air holes are provided on the outer wall of the base. The vacuum pump is arranged in the inner cavity of the base. The adapter is a columnar structure with a connecting cavity running through the upper and lower parts. The adapter is detachably connected to the upper end of the base. The access hole is rotatably connected to the upper end of the adapter. The collection chamber, the connecting cavity and the vacuum pump are connected in sequence.

2. The shipborne multi-dimensional air sample sampling device according to claim 1, characterized in that: The collection box is composed of a cover plate and a box body. The sampling head is connected to the bottom of the cover plate. The cover plate covers the upper opening of the box body. The cover plate is provided with a butterfly screw, which cooperates with the screw hole on the box body.

3. The shipborne multi-dimensional air sample sampling device according to claim 2, characterized in that: A flat plate is provided at the edge of the upper opening of the box body. The flat plate and the air guide vanes are arranged on opposite side walls of the box body. The planes where the flat plate and the air guide vanes are located are perpendicular to each other. The collection hole and the flat plate are arranged on the same side of the box body.

4. The shipborne multi-dimensional air sample sampling device according to claim 1, characterized in that: The vacuum assembly also includes a fixing seat, which is a "X"-shaped structure with a supporting foot connected to the lower end of a circular ring. The vacuum pump is sleeved in the circular ring, and the lower end of the supporting foot is detachably connected to the bottom of the base.

5. The shipborne multi-dimensional air sample sampling device according to claim 4, characterized in that: The plurality of air holes are respectively arranged on the outer side wall of the base and the bottom wall of the base.

6. The shipborne multi-dimensional air sample sampling device according to claim 1, characterized in that: It also includes a limit assembly, which includes a limit seat, a limit plate and a limit groove. The limit seat is fixedly connected to the upper end of the base, and the limit groove is arranged on the outer wall of the lower end of the collection box. One end of the limit plate can be rotatably connected to the limit seat, and the other end of the limit plate can be abutted and connected in the limit groove.

7. The shipborne multi-dimensional air sample sampling device according to claim 1, characterized in that: The adapter seat is connected to the access hole via a bearing.

8. The shipborne multi-dimensional air sample sampling device according to claim 1, characterized in that: A handle is provided on the outer side wall of the base.

9. The shipborne multi-dimensional air sample sampling device according to claim 1, characterized in that: A plurality of footings are arranged at the bottom of the base.

10. The shipborne multi-dimensional air sample sampling device according to claim 1, characterized in that: A mast mounting hole is provided at the bottom of the base.

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