CN210322434U - Aerosol sampling box - Google Patents
Aerosol sampling box Download PDFInfo
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- CN210322434U CN210322434U CN201920950435.0U CN201920950435U CN210322434U CN 210322434 U CN210322434 U CN 210322434U CN 201920950435 U CN201920950435 U CN 201920950435U CN 210322434 U CN210322434 U CN 210322434U
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- sampling box
- main body
- box main
- filter paper
- sampling
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Abstract
The utility model discloses an aerosol sampling box, which comprises a sampling box main body, wherein the upper end and the lower end of the sampling box main body are respectively provided with a sample inlet and an air exhaust port, any side wall of the sampling box main body is open, and a door is hinged with the open side of the sampling box main body; the sampling box main part sets up the inlet tube that communicates with the introduction port and the exhaust tube that communicates with the exhaust port respectively, and top-down sets gradually filter paper clamping ring, filter paper support net dish and sealing washer between the adjacent terminal surface of inlet tube and exhaust tube, sets up pressure spring between the terminal surface under filter paper clamping ring and the inlet tube. The utility model provides an aerosol sampling box, which has small wall damage factor when the sampling box enters a sample collecting filter paper from a sample inlet to directly intake air; the vertical hinged door type structure is convenient for sample changing operation; the sample inlet and the air exhaust port are connected by adopting a quick-connection flange interface, and the installation and the connection are simple and convenient.
Description
Technical Field
The utility model belongs to airborne microparticle sampling measurement field, concretely relates to aerosol sampling box.
Background
Airborne particle sampling is important in airborne particle measurement in the fields of industry, environment and the like, and particularly, aerosol monitoring is required for facilities which can generate radioactive aerosol, devices which generate aerosol, pipelines which carry airborne effluents, flues and the like. Therefore, in these devices or pipes that may generate radioactive aerosols, it is necessary to first frequently sample the radioactive airborne particles within the device or pipe. The sampling box structure mainly needs to consider that the influence of errors introduced in the sampling process is small, the operation is convenient, and the installation and the connection are simple. At present, the structure of the domestic sampling box basically prolongs the structure used in the Soviet Union period, the sample changing operation is inconvenient, the wall loss factor is large, and the installation and the connection are complicated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a provide in order to overcome the shortcoming that exists among the prior art, its purpose provides an aerosol sampling box.
The technical scheme of the utility model is that:
an aerosol sampling box comprises a sampling box main body, wherein a sample inlet and an air extraction opening are formed at the upper end and the lower end of the sampling box main body respectively; the sampling box main part sets up the inlet tube that communicates with the introduction port and the exhaust tube that communicates with the exhaust port respectively, and top-down sets gradually filter paper clamping ring, filter paper support net dish and sealing washer between the adjacent terminal surface of inlet tube and exhaust tube, sets up pressure spring between the terminal surface under filter paper clamping ring and the inlet tube.
The sampling box main body is of a square box-shaped structure.
The sample inlet and the air exhaust port are respectively externally connected with a sample inlet connecting flange and an air exhaust port connecting flange.
One side of the door towards the sampling box main body is provided with a door sealing ring.
The door is locked with the sampling box main body through a door fastener arranged on the side wall of the sampling box main body.
And the upper part of the compression spring is fixedly connected with the end face of the sampling tube.
And the end surfaces of the adjacent ends of the sample inlet pipe and the exhaust pipe form extension rings.
The filter paper pressing ring is of a circular ring-shaped structure, and a convex ring is formed on the end face of one side, facing the filter paper supporting net disc, of the filter paper pressing ring.
The filter paper supporting net plate comprises a disc-shaped tray and a T-shaped handle fixedly connected with the outer circumferential wall of the tray; a circular groove is formed in the middle of the tray, and a plurality of holes are formed at the bottom of the groove.
The outer diameter of the convex ring is matched with the inner diameter of the groove, and the convex ring and the groove form a nested structure.
The utility model has the advantages that:
the utility model provides an aerosol sampling box, which has small wall damage factor when the sampling box enters a sample collecting filter paper from a sample inlet to directly intake air; the vertical hinged door type structure is convenient for sample changing operation; the sample inlet and the air exhaust port are connected by adopting a quick-connection flange interface, and the installation and the connection are simple and convenient.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a perspective view of the door of the present invention in an open state;
fig. 3 is a front view of the present invention in a door open state;
FIG. 4 is a schematic structural view of a filter paper supporting net tray of the present invention;
fig. 5 is a schematic structural view of the filter paper press ring of the present invention.
Wherein:
1 sample inlet connecting flange 2 filter paper supporting net disc
3 filter paper press ring 4 sealing ring
5 air exhaust port connecting flange 6 sampling box main body
7-door 8-door sealing ring
9 hold-down spring 10 door fastener
11 handle 12 sampling tube
13 air exhaust pipe 14 convex ring
15 tray 16 handle
17 holes.
Detailed Description
The aerosol sampling box of the present invention is described in detail with reference to the drawings and the embodiments of the specification:
as shown in fig. 1 to 5, an aerosol sampling box comprises a sampling box main body 6, wherein a sample inlet and an air extraction opening are respectively formed at the upper end and the lower end of the sampling box main body 6, any side wall of the sampling box main body 6 is open, and a door 7 is hinged with the open side of the sampling box main body 6; the sampling box main body 6 is respectively provided with a sample inlet pipe 12 communicated with the sample inlet and an exhaust pipe 13 communicated with the exhaust port, a filter paper clamping ring 3, a filter paper supporting net disc 2 and a sealing ring 4 are sequentially arranged between the adjacent end faces of the sample inlet pipe 12 and the exhaust pipe 13 from top to bottom, and a compression spring 9 is arranged between the lower end faces of the filter paper clamping ring 3 and the sample inlet pipe 12.
The sampling box main body 6 is of a square box shape and a vertical hinged door type structure.
The sample inlet and the air exhaust are respectively connected with a sample inlet connecting flange 1 and an air exhaust connecting flange 5.
One side of the door 7 facing the sampling box main body 6 is provided with a door sealing ring 8, and the door sealing ring and the negative pressure formed by sampling and air exhaust jointly form the airtightness of the sampling box.
The door 7 is locked with the sampling box main body 6 through a door fastener 10 arranged on the side wall of the sampling box main body 6.
The upper part of the compression spring 9 is fixedly connected with the end face of the sampling tube 12.
The end surfaces of the adjacent ends of the sample inlet pipe 12 and the gas exhaust pipe 13 form extension rings.
The filter paper pressing ring 3 is of a circular ring structure, and a convex ring 14 is formed on the end face of one side, facing the filter paper supporting net disc 2, of the filter paper pressing ring.
The filter paper supporting net plate comprises a disc-shaped tray 15 and a T-shaped handle 16 fixedly connected with the outer circumferential wall of the tray 15; a circular groove is formed in the middle of the tray 15, and a plurality of holes 17 are formed at the bottom of the groove.
The outer diameter of the convex ring 14 is matched with the inner diameter of the groove, so that a filter paper mesh disc of the sample tray and a filter paper pressing ring form a nested structure, and the paper pattern is ensured to be stably installed.
A sealing ring is arranged below the sample tray, and a pressure spring 9 is arranged above the sample tray to form air tightness in the airflow direction.
This sampling box is established in a certain metal uranium melting device, and introduction port flange and device sampling port are connected with the flange that connects soon, and extraction opening and sampling pump also are connected with the flange that connects soon, pack into sampling filter paper on the sample tray, realize the aerosol sampling in the device. And the gas to be sampled flows in through the sample inlet, the gas-borne particles in the gas are collected through the filter paper on the sample tray, and the residual gas is discharged from the gas extraction port. The sampling box is simple and convenient to disassemble and assemble; the filter paper is directly opposite to the sampling port, the wall loss factor is small, the sampling efficiency is high, and the error caused in the sampling process is small; the door type structure is convenient for sample changing operation.
Claims (10)
1. An aerosol sampling cartridge, comprising: the sampling box comprises a sampling box main body (6) of which the upper end and the lower end are respectively provided with a sample inlet and an air extraction port, any side wall of the sampling box main body (6) is open, and a door (7) is hinged with the open side of the sampling box main body (6); the sampling box main body (6) is respectively provided with a sample inlet pipe (12) communicated with the sample inlet and an exhaust pipe (13) communicated with the exhaust port, a filter paper pressing ring (3), a filter paper supporting net disc (2) and a sealing ring (4) are sequentially arranged between the adjacent end faces of the sample inlet pipe (12) and the exhaust pipe (13) from top to bottom, and a compression spring (9) is arranged between the lower end faces of the filter paper pressing ring (3) and the sample inlet pipe (12).
2. The aerosol sampling cartridge of claim 1, wherein: the sampling box main body (6) is of a square box-shaped structure.
3. The aerosol sampling cartridge of claim 1, wherein: the sample inlet and the air exhaust are respectively connected with a sample inlet connecting flange (1) and an air exhaust connecting flange (5) externally.
4. The aerosol sampling cartridge of claim 1, wherein: and a door sealing ring (8) is arranged on one side of the door (7) facing the sampling box main body (6).
5. The aerosol sampling cartridge of claim 1, wherein: the door (7) is locked with the sampling box main body (6) through a door fastener (10) arranged on the side wall of the sampling box main body (6).
6. The aerosol sampling cartridge of claim 1, wherein: the upper part of the compression spring (9) is fixedly connected with the end face of the sampling tube (12).
7. The aerosol sampling cartridge of claim 1, wherein: and the end surfaces of the adjacent ends of the sample inlet pipe (12) and the air exhaust pipe (13) form extension rings.
8. The aerosol sampling cartridge of claim 1, wherein: the filter paper pressing ring (3) is of a circular ring structure, and a convex ring (14) is formed on the end face of one side, facing the filter paper supporting net disc (2).
9. The aerosol sampling cartridge of claim 1, wherein: the filter paper supporting net plate comprises a disc-shaped tray (15) and a T-shaped handle (16) fixedly connected with the outer circumferential wall of the tray (15); a circular groove is formed in the middle of the tray (15), and a plurality of holes (17) are formed at the bottom of the groove.
10. The aerosol sampling cartridge of claim 8, wherein: the outer diameter of the convex ring (14) is matched with the inner diameter of the groove, and the convex ring and the groove form a nested structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920950435.0U CN210322434U (en) | 2019-06-24 | 2019-06-24 | Aerosol sampling box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920950435.0U CN210322434U (en) | 2019-06-24 | 2019-06-24 | Aerosol sampling box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210322434U true CN210322434U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920950435.0U Active CN210322434U (en) | 2019-06-24 | 2019-06-24 | Aerosol sampling box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210322434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132657A (en) * | 2019-06-24 | 2019-08-16 | 核工业理化工程研究院 | Sampling of aerosol box |
-
2019
- 2019-06-24 CN CN201920950435.0U patent/CN210322434U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132657A (en) * | 2019-06-24 | 2019-08-16 | 核工业理化工程研究院 | Sampling of aerosol box |
| CN110132657B (en) * | 2019-06-24 | 2024-04-09 | 核工业理化工程研究院 | Aerosol sampling box |
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