CN110806340A

CN110806340A - Sampling device for atmospheric pollution treatment

Info

Publication number: CN110806340A
Application number: CN201911108226.2A
Authority: CN
Inventors: 练思莹
Original assignee: Foshan University
Current assignee: Foshan University
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-02-18

Abstract

The invention discloses a sampling device for atmospheric pollution treatment, and relates to the technical field of atmospheric pollution treatment. The device comprises a bottom box and a storage bin, wherein a rotating shaft which is in running fit with the bottom box is fixed at the bottom end of the storage bin, a driving device which is in transmission connection with the rotating shaft is fixed inside the bottom box, sampling bottles are fixedly placed in the circumferential array in the inner cavity of the storage bin, an air inlet pipe and an air outlet pipe are arranged at the top ends of the sampling bottles, an air exhaust cavity is arranged in the middle of the storage bin, an air collection disc is fixed inside the air exhaust cavity, air exhaust pipe openings which are communicated with the air outlet pipes of the sampling bottles are arranged on the circumferential side surface of the air collection disc, an air exhaust pump is communicated with the bottom end of the air collection disc. The invention has a rotatable disc type storage bin, each sampling bottle can sample continuously or at a constant speed in a rotating state, the sampling mode is not influenced by the interference of wind direction airflow, the sampling efficiency is high, and the application range is wide.

Description

Sampling device for atmospheric pollution treatment

Technical Field

The invention belongs to the technical field of atmospheric pollution treatment, and particularly relates to a sampling device for atmospheric pollution treatment.

Background

Atmospheric sampling is an important step of atmospheric environment monitoring, and has a great reliability relation to monitoring data. The method for collecting the atmospheric sample mainly comprises two types, one is that a large amount of air passes through a liquid absorbent or a solid absorbent to absorb or retain pollutants, and the original pollutants with lower concentration in the atmosphere are enriched, such as an air extraction method and a filter membrane method. The result of measurements with this type of method is the average concentration of the contaminants in the atmosphere over the sampling time. Another type is to use containers (glass bottles, plastic bags, rubber bladders, syringes, etc.) to collect air containing contaminants. Such methods are applicable in the following cases: the concentration of pollutants in the atmosphere is high; or the sensitivity of the determination method is higher; contaminated gases and vapors that are not readily absorbed by liquid absorbents or solid adsorbents. The result of this measurement is the instantaneous concentration or the average concentration in a short time of the pollutants in the atmosphere. In addition, there are cryogenic freezing methods that can be used to collect volatile gases and vapors, such as lead alkyls. The liquid absorbent in the sampler is mainly used for absorbing gaseous and vapor substances. Commonly used absorbents are: water, aqueous compound solutions, organic solvents, and the like. The absorbent must be capable of reacting with the contaminant rapidly or dissolving the contaminant rapidly and facilitating the analytical procedure.

The atmospheric sampling method is to select a proper sampling mode according to the purpose and the field situation of sampling. Such as continuous or instantaneous sampling, fixed-point sampling or flow sampling on the ground, air sampling by balloons and airplanes, environmental sampling, indoor sampling, pollution source sampling and the like. The sampling purpose and the sampling mode are different, and the sampling method and the sampler are also different. For example, the sampling of the particles in the chimney can be realized by selecting a proper position to punch according to the shape and height of the chimney, extending the collector of the sampler into the hole and performing air extraction and collection at the same power speed. This method is called isokinetic sampling.

Some sampling devices at present are difficult to deal with airflow flowing in different directions, although a plurality of samplers are arranged, measurement results of various collected samples are large in difference, and representative samples are often difficult to collect, so that a person is required to continuously adjust the sampling angle of the sampler on a tripod according to the wind direction during collection, the sampling efficiency is low, and meanwhile, the sampling equipment used on the tripod is limited in use occasion and is difficult to adapt to sampling at higher height.

Disclosure of Invention

The invention aims to provide a sampling device for atmospheric pollution control, which can carry out omnibearing sampling on different wind directions and has high sampling efficiency, so as to solve the problems in the background technology.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a sampling device for atmospheric pollution control, which comprises a bottom box and a storage bin, wherein a rotating shaft which is in rotating fit with the bottom box is fixed at the bottom end of the storage bin, a driving device which is in transmission connection with the rotating shaft is fixed inside the bottom box, sampling bottles are fixedly placed in the inner cavity of the storage bin in a circumferential array mode, an air inlet pipe and an air outlet pipe are arranged at the top ends of the sampling bottles, an air exhaust cavity is arranged in the middle of the storage bin, an air collection disc is fixed inside the air exhaust cavity, air exhaust pipe openings which are communicated with the air outlet pipes of the sampling bottles are arranged on the circumferential side surface of the air collection disc, an air exhaust pump is communicated with the bottom end of the air collection disc, a controller is fixed at the front end.

Further, the driving device comprises a driving motor, and the output end of the driving motor is in transmission connection with the rotating shaft through a pair of gears meshed with each other.

Furthermore, a hanging rod is fixed at the top end of the bottom box, and a hanging ring is fixed at the top end of the hanging rod.

Further, the inside ball courage that is equipped with of sampling bottle, ball courage bottom and intake pipe intercommunication form U type linker pipeline, ball courage top and outlet duct intercommunication, the sampling bottle top is run through and is fixed with the bushing tip pipe with the ball courage intercommunication, bushing tip pipe top port is equipped with the stopper.

Furthermore, the bottom end of the air pumping cavity is provided with an exhaust hole.

Further, store the bin all sides and be equipped with the notch with intake pipe looks adaptation, store bin inner wall bottom and be equipped with the cylinder groove with sampling bottle looks adaptation.

The invention has the following beneficial effects:

1. the invention has a rotatable disc type storage bin, each sampling bottle can sample continuously or at a constant speed in a rotating state, the sampling mode is not influenced by the interference of wind direction airflow, the sampling efficiency is high, and the application range is wide.

2. The sampling bottle of the sampling device is convenient to connect, take and place, and simultaneously is convenient for injecting the absorbent, and the sample is convenient to store.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a sampling device for atmospheric pollution control according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 with the end cap removed;

FIG. 3 is a cross-sectional view of a sampling device for atmospheric pollution control;

fig. 4 is a schematic structural diagram of a sampling bottle.

In the drawings, the components represented by the respective reference numerals are listed below:

1-bottom box, 2-storage bin, 3-rotating shaft, 4-sampling bottle, 5-air inlet pipe, 6-air outlet pipe, 7-air pumping cavity, 8-air collecting disc, 9-pumping pump, 10-controller, 11-end cover, 12-driving motor, 13-gear, 14-suspension rod, 15-suspension ring, 16-ball bladder, 17-nozzle pipe, 18-plug, 19-exhaust hole and 20-notch.

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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the invention is a sampling device for atmospheric pollution control, comprising a bottom case 1 and a storage chamber 2, a rotating shaft 3 rotatably fitted with the bottom case 1 is fixed at the bottom end of the storage chamber 2, a driving device in transmission connection with the rotating shaft 3 is fixed in the bottom case 1, the driving device comprises a driving motor 12, the output end of the driving motor 12 is in transmission connection with the rotating shaft 3 through a pair of gears 13 engaged with each other, sampling bottles 4 are fixedly placed in the inner cavity of the storage chamber 2 in a circumferential array, a cylindrical groove matched with the sampling bottles 4 is arranged at the bottom of the inner wall of the storage chamber 2, an air inlet pipe 5 and an air outlet pipe 6 are arranged at the top end of the sampling bottles 4, an air exhaust cavity 7 is arranged in the middle of the storage chamber 2, an air collecting tray 8 is fixed in the air exhaust cavity 7, air exhaust pipe orifices communicated with the air outlet pipe 6 of the sampling bottles 4 are arranged on the circumferential side surface of the air collecting, the side face of the storage bin 2 is provided with a notch 20 matched with the air inlet pipe 5, and the top end of the storage bin 2 is matched with an end cover 11. Driving motor 12 can drive pivot 3 and rotate to storehouse 2 rotations are stored in the drive, make the intake pipe 5 of each sampling bottle 4 can evenly gather the air, prevent when the wind direction is single, but only a few sampling bottles 4 can gather representative sample.

Wherein, 4 inside gallbladders 16 that are equipped with of sampling bottle, 16 bottoms of gallbladders and 5 intercommunications of intake pipe form U type linker pipelines, 16 tops of gallbladders and 6 intercommunications of outlet duct, 4 tops of sampling bottles run through be fixed with the nozzle pipe 17 that leaks with 16 intercommunications of gallbladders, nozzle pipe 17 top port is equipped with stopper 18, accessible nozzle pipe 17 mouth of pipe pours into the absorbent for the sampling into to the gallbladders 16, during the sampling, open the pump 9 of taking out, the air is got into by intake pipe 5, absorb the back by the absorbent and get into air-collecting tray 8 by outlet duct 6, finally discharged by pump 9.

The front end in the bottom case 1 is fixed with a controller 10, and the controller 10 comprises a PLC (programmable logic controller), a power supply, an LCD (liquid crystal display) screen and a control key which are arranged in the bottom case, and can be used for setting a timing period sampling mode or different sampling modes.

Wherein, the top of the bottom case 1 is fixed with a suspender 14, the top of the suspender 14 is fixed with a suspension ring 15, and the suspension ring 15 is used for carrying the device on a balloon or an airplane for aerial sampling.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an atmospheric pollution administers and uses sampling device which characterized in that: comprises a bottom box (1) and a storage bin (2), wherein a rotating shaft (3) which is rotationally matched with the bottom box (1) is fixed at the bottom end of the storage bin (2), a driving device which is in transmission connection with the rotating shaft (3) is fixed in the bottom box (1), the inner cavity of the storage bin (2) is fixedly provided with sampling bottles (4) in a circumferential array, the top end of the sampling bottle (4) is provided with an air inlet pipe (5) and an air outlet pipe (6), an air exhaust cavity (7) is arranged in the middle of the storage bin (2), an air collecting disc (8) is fixed in the air exhaust cavity (7), the peripheral side surface of the air collecting disc (8) is provided with an air exhaust pipe orifice communicated with the air outlet pipe (6) of the sampling bottle (4), the bottom end of the air collecting disc (8) is communicated with a pump (9), the front end inside the bottom box (1) is fixed with a controller (10), and the top end of the storage bin (2) is matched with an end cover (11).

2. The sampling device for atmospheric pollution control according to claim 1, wherein the driving device comprises a driving motor (12), and an output end of the driving motor (12) is in transmission connection with the rotating shaft (3) through a pair of gears (13) meshed with each other.

3. The sampling device for atmospheric pollution control according to claim 1, wherein a suspension rod (14) is fixed to the top end of the bottom box (1), and a hanging ring (15) is fixed to the top end of the suspension rod (14).

4. The sampling device for atmospheric pollution control according to claim 1, wherein a bladder (16) is arranged inside the sampling bottle (4), the bottom end of the bladder (16) is communicated with the air inlet pipe (5) to form a U-shaped communicating vessel pipeline, the top end of the bladder (16) is communicated with the air outlet pipe (6), a nozzle leakage pipe (17) communicated with the bladder (16) is fixedly arranged at the top end of the sampling bottle (4) in a penetrating manner, and a plug (18) is arranged at the top end of the nozzle leakage pipe (17).

5. The sampling device for atmospheric pollution control according to claim 1, wherein the bottom end of the air pumping cavity (7) is provided with an air exhaust hole (19).

6. The sampling device for atmospheric pollution control according to claim 1, wherein the circumferential side of the storage bin (2) is provided with a notch (20) matched with the air inlet pipe (5), and the bottom of the inner wall of the storage bin (2) is provided with a cylindrical groove matched with the sampling bottle (4).