Aerosol total dust sampling device

Abstract

The utility model discloses an aerosol total dust sampling device, which mainly solves the technical problems that an air inlet is easy to block and internal parts are easy to damage due to impact or vibration in the sampling process of the existing sampling equipment. The sampling device comprises a box body, a shielding unit and a sampling unit arranged in the box body, a box cover is mounted at the top of the box body; an air inlet is formed in the box cover; the shielding unit comprises a shielding plate and a plurality of supporting columns; the baffle plate is parallel to the box cover and is positioned above the air inlet; the multiple supporting columns are evenly distributed in the circumferential direction of the air inlet. One end of each strut is connected with the top of the box cover, and the other end of each strut is connected with the baffle plate; the sampling unit comprises a total dust filter and an air pump which are mounted on a bottom plate of the box body; an air inlet nozzle of the total dust filter is communicated with the air inlet, and an air outlet nozzle is communicated with the air pump. The shielding unit adopts a layout mode of shielding the top and feeding air from the periphery, so that the blockage caused by the fact that fragments generated by impacting high temperature and high pressure enter the air inlet can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to aerosol sampling technology, and particularly relates to an aerosol total dust sampling device. Background Art

[0002] In scientific experiments or research related to impact high temperature and high pressure, in order to study the composition of soot in the impact high temperature and high pressure environment, it is necessary to sample the aerosol in the soot through a sampling device, and then obtain its composition information through analysis.

[0003] During the impact high temperature and high pressure process, the aerosol is released relatively quickly and the initial concentration is relatively high. The air inlet of the existing sampling device is usually an open design structure, so that the aerosol sample can be collected quickly. However, during the impact high temperature and high pressure process, in addition to the aerosol, a lot of solid fragments will also be generated, and the solid fragments are easy to fall into the air inlet, resulting in the blockage of the air inlet and the inability to smoothly carry out the sampling process. In addition, the impact high temperature and high pressure environment is likely to cause the parts inside the sampling device to be damaged due to impact or vibration. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an aerosol total dust sampling device, which mainly solves the technical problems that the existing sampling device is easy to cause blockage of the air inlet during the sampling process, and the internal parts are easy to be damaged due to impact or vibration.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] An aerosol total dust sampling device, characterized in that:

[0007] It includes a box body, a shielding unit and a sampling unit arranged in the box body;

[0008] A box cover is installed on the top of the box body, and an air inlet is provided on the box cover;

[0009] The shielding unit includes a shielding plate and a plurality of support columns; the shielding plate is arranged parallel to the box cover and is located above the air inlet; the plurality of support columns are evenly distributed in the circumferential direction of the air inlet; one end of each support column is respectively connected to the top of the box cover, and the other end is respectively connected to the shielding plate;

[0010] The sampling unit includes a total dust filter and an air pump installed on the bottom plate of the box body; an air inlet nozzle is provided on the top of the total dust filter, and an air outlet nozzle is provided on the bottom, wherein the air inlet nozzle is communicated with the air inlet, and the air outlet nozzle is communicated with the air pump.

[0011] Further, a plurality of shock mounts are installed on the bottom of the box body.

[0012] Further, it also includes an aerosol sensor installed on the bottom plate of the box body; a lateral air outlet communicating with its air inlet nozzle is provided on the side wall of the total dust filter, and the lateral air outlet is communicated with the aerosol sensor.

[0013] Further, the aerosol sensor is installed on the bottom plate of the box body through an angle steel plate; the angle steel plate is of an L-shaped structure, the horizontal plate of the L-shaped structure is installed on the bottom plate of the box body, and the aerosol sensor is installed on the vertical plate of the L-shaped structure.

[0014] Further, the shielding unit further includes a mounting ring, the mounting ring is installed on the top of the box cover and is coaxially arranged with the air inlet; one end of each support column is respectively connected to the top of the box cover through the mounting ring.

[0015] Further, the mounting ring is detachably connected to the top of the box cover.

[0016] Further, the box cover is connected to the box body through a plurality of buckles.

[0017] Further, air outlet holes are provided on the side wall of the box body.

[0018] Further, there are three support columns.

[0019] Further, the shock absorber seat is made of rubber material.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. For the aerosol total dust sampling device provided by the utility model, by providing a shielding unit on the top of the box body and arranging an air inlet on the box cover that communicates with the air inlet nozzle of the total dust filter, it can not only ensure the smooth progress of the sampling work, but also prevent the fragments generated by impact at high temperature and high pressure from entering the air inlet, thus effectively avoiding the blockage of the air inlet and affecting the sampling efficiency.

[0022] 2. For the aerosol total dust sampling device provided by the utility model, the total dust filter and the air pump are both located inside the box body and are installed on the bottom plate of the box body, so as to avoid the damage of the internal parts of the sampling device by the fragments generated by impact at high temperature and high pressure.

[0023] 3. For the aerosol total dust sampling device provided by the utility model, a plurality of shock absorber seats are installed at the bottom of the box body, which can improve the overall shock absorption effect of the device.

[0024] 4. For the aerosol total dust sampling device provided by the utility model, an aerosol sensor is installed inside the box body, which can detect the effective gas entering the total dust filter in real time, thereby improving the effectiveness of sample collection.

[0025] 5. The aerosol total dust sampling device provided by the present utility model has a detachable safety ring. When the shielding unit is not needed or needs to be replaced, the shielding unit can be quickly detached by removing the safety ring from the box cover, which is relatively convenient to use.

[0026] 6. The aerosol total dust sampling device provided by the present utility model has a box cover connected to the box body through multiple buckles, which is convenient for checking the installation status of each component inside the box body and for maintenance.

[0027] 7. The aerosol total dust sampling device provided by the present utility model is provided with an air outlet hole on the box body, which can further improve the safety of the sampling device. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of an embodiment of an aerosol total dust sampling device of the present utility model.

[0029] Figure 2 It is a schematic internal structure diagram of an embodiment of an aerosol total dust sampling device of the present utility model Figure 1 .

[0030] Figure 3 It is a schematic internal structure diagram of an embodiment of an aerosol total dust sampling device of the present utility model Figure 2 .

[0031] The reference numerals are as follows:

[0032] 100 - box body, 101 - air outlet hole, 102 - shock absorber seat, 103 - buckle, 110 - box cover, 111 - air inlet, 200 - shielding unit, 210 - shielding plate, 220 - support column, 230 - mounting ring, 300 - total dust filter, 310 - lateral air outlet nozzle, 400 - air pump, 500 - aerosol sensor, 600 - angle steel plate. Detailed Embodiment

[0033] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model will be clearly and completely described below in conjunction with the drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0034] Referring to Figure 1 , Figure 2 , Figure 3 , this embodiment provides an aerosol total dust sampling device, including a box body 100, a shielding unit 200 and a sampling unit arranged inside the box body 100.

[0035] A box cover 110 is detachably installed on the top of the box body 100, and an air inlet 111 is provided on the box cover 110. Specifically, the box body 100 is of a cuboid structure and is connected to the box cover 110 through four snap fasteners 103, facilitating the opening of the box cover.

[0036] To improve the safety of the device and enable the gas in the box body 100 to be discharged in time, an air outlet hole 101 is provided on the side wall of the box body 100 in this embodiment.

[0037] The shielding unit 200 includes a shielding plate 210 and a plurality of support columns 220; the shielding plate 210 is arranged parallel to the box cover 110 and is located above the air inlet 111; the plurality of support columns 220 are evenly distributed in the circumferential direction of the air inlet 111. One end of each support column 220 is vertically connected to the top of the box cover 110 respectively, and the other end is vertically connected to the shielding plate 210 respectively, so that the shielding plate 210 is kept parallel to the box cover 110.

[0038] In this embodiment, the shielding plate 210 is supported by three support columns 220 and fixed above the air inlet 111. The spaced spaces between the support columns 220 are used for air intake, thus adjusting the vertical air intake mode to a lateral air intake mode, so as to avoid high-temperature and high-pressure debris hitting and blocking the air inlet 111.

[0039] In some embodiments, the shielding unit 200 further includes a mounting ring 230. The mounting ring 230 is installed on the top of the box cover 110 and is coaxially arranged with the air inlet 111. Both ends of each support column 220 are respectively connected to the shielding plate 210 and the mounting ring 230, thus forming the shielding unit 200.

[0040] To facilitate the subsequent disassembly or replacement of the shielding unit 200, in some embodiments, the mounting ring 230 is detachably connected to the top of the box cover 110.

[0041] Specifically, a plurality of mounting holes are provided on the mounting ring 230, and a plurality of mounting holes are also provided on the box cover 110. During the installation process, the mounting holes on the mounting ring 230 correspond to the mounting holes on the box cover 110 one by one. Then, bolts are passed through the corresponding mounting holes of the mounting ring 230 and the box cover 110 and then locked with nuts, thus connecting the mounting ring 230 to the box cover 110.

[0042] The sampling unit includes a total dust filter 300 and an air pump 400 installed on the bottom plate of the box body 100; an air inlet nozzle is provided at the top of the total dust filter 300, and an air outlet nozzle is provided at the bottom, wherein the air inlet nozzle is communicated with the air inlet 111, and the air outlet nozzle is communicated with the air pump 400.

[0043] In order to detect the effective gas (i.e., the gas carrying effective particulate matter) entering the total dust filter 300, in some embodiments, an aerosol sensor 500 is installed inside the box body 100. A lateral air outlet 310 communicating with the air inlet nozzle is provided on the side wall of the total dust filter 300, and the lateral air outlet 310 is communicated with the aerosol sensor 500. Based on this, a part of the gas entering the total dust filter 300 will enter the aerosol sensor 500 through the lateral air outlet 310, and the aerosol sensor 500 detects the particulate matter content of the entering gas, so as to calculate the effective time period during the process of the total dust filter 300 intercepting the aerosol.

[0044] The aerosol sensor 500 is installed on the bottom plate of the box body 100 through an angle steel plate 600. Specifically, the angle steel plate 600 is of an L-shaped structure, the horizontal plate of the L-shaped structure is fixed on the bottom plate of the box body 100, and the aerosol sensor 500 is fixed on the vertical plate of the L-shaped structure through bolts.

[0045] In order to improve the seismic resistance of the box body 100, a plurality of shock-absorbing seats 102 are installed at the bottom of the box body 100 in this embodiment. Specifically, installation holes are respectively opened at the four corners of the bottom of the box body 100, and the four corners of the bottom of the box body 100 are respectively installed with shock-absorbing seats 102 through bolts. The shock-absorbing seats 102 are made of rubber material, so as to play a role in shock absorption for the whole device.

[0046] During the use of the sampling device in this embodiment, first, the whole device is placed at the impact high-temperature and high-pressure site, the air pump 400 starts to work and draw air, the aerosol at the impact high-temperature and high-pressure site enters the total dust filter 300 from the air inlet 111 after passing through the shielding unit 200, and the total dust filter 300 intercepts the aerosol particles, so as to realize sampling. Since the shielding unit 200 is installed at the air inlet 111 in this embodiment, and the shielding unit 200 adopts a layout mode of covering the top and admitting air from all around, it can well prevent the fragments generated by the impact high-temperature and high-pressure from entering the air inlet 111, so as to prevent the air inlet 111 from being blocked and affecting the sampling efficiency.

[0047] Based on the above embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

Claims

1. An aerosol total dust sampling device, characterized in that: It includes a box body (100), a shielding unit (200) and a sampling unit arranged inside the box body (100); A box cover (110) is installed on the top of the box body (100), and an air inlet (111) is provided on the box cover (110); The shielding unit (200) includes a shielding plate (210) and a plurality of support columns (220); the shielding plate (210) is arranged parallel to the box cover (110) and is located above the air inlet (111); the plurality of support columns (220) are evenly distributed in the circumferential direction of the air inlet (111); one end of each support column (220) is respectively connected to the top of the box cover (110), and the other end is respectively connected to the shielding plate (210); The sampling unit includes a total dust filter (300) and an air pump (400) installed on the bottom plate of the box body (100); an air inlet nozzle is provided at the top of the total dust filter (300), and an air outlet nozzle is provided at the bottom, wherein the air inlet nozzle is communicated with the air inlet (111), and the air outlet nozzle is communicated with the air pump (400).

2. The aerosol total dust sampling device according to claim 1, characterized in that: A plurality of shock mounts (102) are installed at the bottom of the box body (100).

3. The aerosol total dust sampling device according to claim 1 or 2, characterized in that: It further includes an aerosol sensor (500) installed on the bottom plate of the box body (100); A lateral air outlet nozzle (310) communicated with its air inlet nozzle is provided on the side wall of the total dust filter (300), and the lateral air outlet nozzle (310) is communicated with the aerosol sensor (500).

4. The aerosol total dust sampling device according to claim 3, characterized in that: The aerosol sensor (500) is installed on the bottom plate of the box body (100) through an angle steel plate (600); the angle steel plate (600) is of an L-shaped structure, the horizontal plate of the L-shaped structure is installed on the bottom plate of the box body (100), and the aerosol sensor (500) is installed on the vertical plate of the L-shaped structure.

5. The aerosol total dust sampling device according to claim 1, characterized in that: The shielding unit (200) further includes a mounting ring (230), the mounting ring (230) is installed on the top of the box cover (110) and is coaxially arranged with the air inlet (111); one end of each support column (220) is respectively connected to the top of the box cover (110) through the mounting ring (230).

6. The total dust aerosol sampling device according to claim 5, characterized in that: The mounting ring (230) is detachably connected to the top of the box cover (110).

7. The total aerosol dust sampling device according to claim 6, characterized in that: The box cover (110) is connected to the box body (100) through a plurality of buckles (103).

8. The aerosol total dust sampling device according to claim 7, wherein: Air outlet holes (101) are provided on the side wall of the box body (100).

9. The aerosol total dust sampling device according to claim 8, characterized in that: There are three support columns (220).

10. The aerosol total dust sampling device according to claim 2, characterized in that: The shock mount (102) is made of rubber.

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