CN216978536U

CN216978536U - Air extraction and sampling device for atmospheric environment monitoring

Info

Publication number: CN216978536U
Application number: CN202220445596.6U
Authority: CN
Inventors: 邹雅竹; 喻谨之; 周偲
Original assignee: Hunan Kezhun Testing Technology Co ltd
Current assignee: Hunan Kezhun Testing Technology Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-07-15
Anticipated expiration: 2032-03-02

Abstract

The utility model relates to the technical field of atmospheric environment monitoring, and particularly discloses an air extraction sampling device for atmospheric environment monitoring, which comprises an atmospheric sampling instrument, an absorption bottle and a buffer bottle, wherein the air outlet end of the absorption bottle is connected with the air inlet end of the buffer bottle, the air outlet end of the buffer bottle is connected with the air extraction end of the atmospheric sampling instrument, the air inlet end of the absorption bottle is connected with a filtering device, the filtering device comprises a primary filtering part and a secondary filtering part, the air outlet end of the primary filtering part is connected with the air inlet end of the secondary filtering part, and the air outlet end of the secondary filtering part is connected with the air inlet end of the absorption bottle.

Description

Air extraction and sampling device for atmospheric environment monitoring

Technical Field

The utility model relates to the technical field of glasses preservation, in particular to an air extraction sampling device for atmospheric environment monitoring.

Background

The atmospheric environment monitoring comprises the monitoring of the content of conventional gaseous pollutants in the air, and the real-time monitoring technology is usually adopted to accurately and timely forecast the content of the conventional gaseous pollutants, so that the early warning of an emergency is facilitated, and meanwhile, data support can be provided for improving the air quality.

As shown in fig. 1, a sampling device in the prior art mainly includes an atmospheric sampling instrument a, an absorption bottle (bubble bottle) B and a buffer bottle C, absorption liquid is filled in the absorption bottle B, an air outlet end B2 of the absorption bottle B is connected with an air inlet end C1 of the buffer bottle C, an air outlet end C2 of the buffer bottle C is connected with an air suction end a1 of the atmospheric sampling instrument a, during sampling, the atmospheric sampling instrument a sucks air, negative pressure is formed in the absorption bottle B and the buffer bottle C, air enters the absorption bottle B from an air inlet end B1 of the absorption bottle B and bubbles in the absorption liquid, the air treated by the absorption liquid enters the buffer bottle C and finally enters the atmospheric sampling instrument a (the buffer bottle C has the function of preventing the absorption liquid from entering the atmospheric sampling instrument a), and finally the atmospheric sampling instrument a detects various numerical values of the air.

However, in a sand wind environment, due to the high content of sand particles in the air, the sampler can easily suck the sand into the absorption liquid of the absorption bottle in the air suction process, so that the absorption bottle is polluted, and the accuracy of detection data is easily influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems mentioned in the background art, the present invention aims to provide an exhaust sampling device for atmospheric environment monitoring.

In order to achieve the above object, the technical solution of the present invention is:

the utility model provides an atmospheric environment monitoring is with sampling device that bleeds, includes atmosphere sampling appearance, absorption bottle and cushion flask, the end of giving vent to anger of absorption bottle is connected with the inlet end of cushion flask, the end of giving vent to anger of cushion flask is connected with the end of bleeding of atmosphere sampling appearance, the inlet end of absorption bottle is connected with filter equipment, filter equipment includes one-level filtering part and second grade filtering part, the end of giving vent to anger of one-level filtering part is connected with the inlet end of second grade filtering part, the end of giving vent to anger of second grade filtering part with the inlet end of absorption bottle is connected.

Further, the primary filtering part comprises a cuboid shell and a plurality of dust collecting bottles, the shell is horizontally arranged, the two ends of the shell in the horizontal direction are respectively provided with an air inlet and an air outlet, a plurality of partition plates are arranged on the inner top wall of the shell along the direction of the air inlet pointing to the air outlet, a plurality of inverted trapezoidal blocks are arranged on the inner bottom wall of the shell, one inverted trapezoidal block is arranged between every two partition plates, the top end of each inverted trapezoidal block is higher than the bottom end of each partition plate, dust outlets are respectively arranged on the bottom walls of the shells at the two ends of each inverted trapezoidal block, each dust outlet is detachably connected with one dust collecting bottle, the secondary filtering part comprises a filter bottle, an air supply bent pipe and an annular filter plate, the top of the filter bottle is in an opening shape, an air outlet pipe is arranged on the side part of the top of the filter plate, one end of the air supply bent pipe is connected with the air outlet, the other end of the air supply bent pipe is embedded in the top opening of the filter bottle through a sealing ring, the annular filter plate is sleeved on the air supply bent pipe in the filter bottle, the annular filter plate is abutted against the inner wall of the filter bottle and is arranged below the air outlet pipe, and the air outlet pipe is connected with the air inlet end of the absorption bottle.

Further, the casing is assembled by half shell and lower half shell and is formed, half shell and lower half shell all are the cuboid type, the baffle shaping in on the half shell, down trapezoidal piece and play dirt mouth shaping in on the half shell down, half shell and lower half shell pass through screwed connection.

Furthermore, a bent part which is bent downwards is formed at one side of the top end of the inverted trapezoidal block facing the partition plate.

The utility model has the beneficial effects that: according to the utility model, the filter device is arranged at the air inlet end of the absorption bottle, and consists of the primary filter part and the secondary filter part, the primary filter part can enable the airflow to flow in a wave-like line and can block and collect most of sand and dust in the airflow, and the secondary filter part can further filter a small part of sand and dust remaining in the airflow, so that the sand and dust in the airflow are effectively prevented from entering the absorption bottle, the accuracy of monitoring data is ensured, and the atmospheric data monitoring under a wind and sand environment can be well adapted.

Drawings

FIG. 1 is an explanatory view of a background art of the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an embodiment of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

fig. 5 is an exploded view of the housing of the present invention.

Description of the figure numbering: 1. atmosphere appearance, 2, absorption bottle, 21, first export, 22, first inner tube, 3, buffer bottle, 31, second export, 32, second inner tube, 4, casing, 41, upper half shell, 411, baffle, 42, lower half shell, 421, inverted trapezoid block, 422, dust outlet, 423, flexion, 43, air inlet, 44, gas outlet, 5, dust collecting bottle, 6, filter flask, 61, outlet duct, 7, air supply return bend, 8, annular filter plate, 9, rubber sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments disclosed herein are intended to be within the scope of the present invention.

As shown in fig. 2-5, an air-extracting sampling device for atmospheric environment monitoring comprises an atmospheric sampling instrument 1, an absorption bottle 2, a buffer bottle 3 and a filtering device, wherein the absorption bottle 2 is vertically arranged, a first outlet 21 is arranged on the side portion of the absorption bottle 2, a first inner tube 22 is arranged inside the absorption bottle 2, the first inner tube 22 extends out of the absorption bottle 2 from the top opening of the absorption bottle 2, a sealing ring is arranged between the outer wall of the first inner tube 22 and the top opening of the absorption bottle 2, absorption liquid is filled in the absorption bottle 2, the bottom opening of the first inner tube 22 is arranged below the liquid level of the absorption liquid, the buffer bottle 3 is vertically arranged, a second outlet 31 is arranged on the side portion of the buffer bottle 3, a second inner tube 32 is arranged in the buffer bottle 3, the top opening of the second inner tube 32 extends out of the buffer bottle 3 from the top opening of the buffer bottle 3, a sealing ring is arranged between the outer wall of the second inner tube 32 and the top opening of the buffer bottle 3, the first outlet 21 is connected with the top opening of the second inner tube 32 through a rubber hose, the second export 31 is connected with the end of bleeding of atmosphere sampling appearance 1 through rubber hose, and filter equipment includes one-level filtering portion and second grade filtering portion, and the end of giving vent to anger of one-level filtering portion is connected with the inlet end of second grade filtering portion, and the end of giving vent to anger of second grade filtering portion passes through rubber hose and is connected with the top mouth of first inner tube 22.

In this embodiment, the primary filtering portion includes a housing 4 in a rectangular shape and five dust collecting bottles 5, the housing 4 is horizontally disposed, the left and right ends of the housing 4 are respectively provided with an air inlet 43 and an air outlet 44, five partition plates 411 are arranged on the inner top wall of the housing 4 from left to right, the partition plates 411 are perpendicular to the inner top wall of the housing 4, the front and rear sides of the partition plates 411 are respectively connected with the front and rear side walls of the housing 4, four inverted trapezoidal blocks 421 are arranged on the inner bottom wall of the housing 4 from left to right, the front and rear sides of the inverted trapezoidal blocks 421 are respectively connected with the front and rear side walls of the housing 4, an inverted trapezoidal block 421 is arranged between every two partition plates 411, the top end of the inverted trapezoidal block 421 is higher than the bottom end of the partition plate 411, the inclined plane of the inverted trapezoidal block 421 faces the partition plate 411, the bottom wall of the housing 4 is provided with five dust outlets 422, the five dust collecting bottles 411 are respectively aligned with the five dust outlets, each outlet 422 is in threaded connection with one dust collecting bottle 5, the second grade filter house includes filter flask 6, air supply elbow 7 and cyclic annular filter plate 8, the top of filter flask 6 is the opening form and the lateral part of filter flask 6 is equipped with outlet duct 61, the top of air supply elbow 7 is passed through the rubber adapter sleeve and is connected with gas outlet 44, the bottom of air supply elbow 7 is inserted and is located in the top mouth of filter flask 6, be equipped with the sealing washer between the outer wall of air supply elbow 7 and the inner wall of filter flask 6, the cover has cyclic annular filter plate 8 on air supply elbow 7 in filter flask 6, cyclic annular filter plate 8 contradicts with the inner wall of filter flask 6 and cyclic annular filter plate 8 locates outlet duct 61 below, outlet duct 61 passes through the rubber hose and is connected with the top mouth of first inner tube 22.

In this embodiment, the housing 4 is formed by assembling the upper half shell 41 and the lower half shell 42, the upper half shell 41 and the lower half shell 42 are both in a rectangular shape, the partition plate 411 is formed on the upper half shell 41, the inverted trapezoidal block 421 and the dust outlet 422 are formed on the lower half shell 42, the upper half shell 41 and the lower half shell 42 are connected through screws, and the structural design is reasonable and the processing is convenient.

In this embodiment, a bent portion 423 bent downward is formed at a top end of the inverted trapezoid block 421 toward one side of the partition 411, so as to further reduce a minimum gap between the inverted trapezoid block 421 and the partition 411.

In the actual sampling process, after the atmospheric sampling instrument 1 is opened, the airflow enters the housing 4 through the air inlet 43, and flows in a wave-like line in the housing 4 under the action of the partition 411 and the inverted trapezoidal block 421, when the airflow moves in an upward trend, due to the inclined surface of the inverted trapezoidal block 421 and the block of the bending part 423, part of the dust and sand cannot pass through the minimum gap between the inverted trapezoidal block 421 and the partition 411, and then fall into the corresponding dust collecting bottle 5, when the airflow moves in a downward trend, the airflow and the residual dust and sand can smoothly pass through the gap between the inverted trapezoidal block 421 and the partition 411, the airflow gradually passes through the gaps between the inverted trapezoidal blocks 421 and the partition 411 from right to left, the dust and sand are gradually reduced, the airflow discharged from the air outlet 44 also carries a trace amount of dust and sand, at this time, the airflow flows into the filter bottle 6 through the bent pipe, the annular filter plate 8 can filter only a trace amount of dust and sand existing in the airflow, the air current after cyclic annular filter plate 8 filters flows into first inner tube 22 again, and no sand and dust has been gone into in the air current this moment, and the air current is bloated in the absorption liquid after getting into the absorption liquid through first inner tube 22, and the air current rethread second inner tube 32 through the absorption liquid flows into buffer flask 3 in, and buffer flask 3 can prevent that the absorption liquid from being inhaled in atmosphere sampling appearance 1, and the air current is at last in getting into atmosphere sampling appearance 1 by buffer flask 3, and atmosphere sampling appearance 1 carries out the analysis to the air current.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, but rather as the intention of all modifications, equivalents, improvements, and equivalents falling within the spirit and scope of the utility model.

Claims

1. The utility model provides an atmospheric environment monitoring is with sampling device that bleeds, includes atmospheric sampling appearance (1), absorption bottle (2) and buffer bottle (3), the end of giving vent to anger of absorption bottle (2) is connected with the inlet end of buffer bottle (3), the end of giving vent to anger of buffer bottle (3) is connected with the end of bleeding of atmospheric sampling appearance (1), a serial communication port, the inlet end of absorption bottle (2) is connected with filter equipment, filter equipment includes one-level filtering part and second grade filtering part, the end of giving vent to anger of one-level filtering part is connected with the inlet end of second grade filtering part, the end of giving vent to anger of second grade filtering part with the inlet end of absorption bottle (2) is connected.

2. The air extraction and sampling device for atmospheric environment monitoring according to claim 1, wherein the primary filtering portion comprises a rectangular housing (4) and a plurality of dust collection bottles (5), the housing (4) is horizontally arranged, air inlets (43) and air outlets (44) are respectively arranged at two ends of the housing (4) in the horizontal direction, a plurality of partition plates (411) are arranged on the inner top wall of the housing (4) along the direction of the air inlets (43) to the air outlets (44), a plurality of inverted trapezoidal blocks (421) are arranged on the inner bottom wall of the housing (4), one inverted trapezoidal block (421) is arranged between every two partition plates (411), the top end of each inverted trapezoidal block (421) is higher than the bottom end of each partition plate (411), dust outlets (422) are respectively arranged on the bottom walls of the housing (4) at two ends of each inverted trapezoidal block (421), and each dust outlet (422) is detachably connected with one dust collection bottle (5), the second grade filter house includes filter flask (6), air feed return bend (7) and cyclic annular filter plate (8), the top of filter flask (6) is opening form and lateral part and is equipped with outlet duct (61), the one end and gas outlet (44) of air feed return bend (7) are connected, the other end of air feed return bend (7) inlays through the sealing washer and locates in the fore-set of filter flask (6), in filter flask (6) the cover has on air feed return bend (7) cyclic annular filter plate (8), outlet duct (61) below is located with the inner wall conflict of filter flask (6) and cyclic annular filter plate (8), outlet duct (61) are connected with the inlet end of absorption bottle (2).

3. The air extraction sampling device for atmospheric environment monitoring according to claim 2 is characterized in that the housing (4) is formed by assembling an upper half shell (41) and a lower half shell (42), the upper half shell (41) and the lower half shell (42) are both in a rectangular shape, the partition plate (411) is formed on the upper half shell (41), the inverted trapezoidal block (421) and the dust outlet (422) are formed on the lower half shell (42), and the upper half shell (41) and the lower half shell (42) are connected through screws.

4. The atmospheric monitoring extraction sampling device of claim 2, wherein the top end of the inverted trapezoidal block (421) is formed with a bending part (423) which bends downwards towards one side of the partition plate (411).