CN203459061U - Dust aerosol generating device - Google Patents
Dust aerosol generating device Download PDFInfo
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- CN203459061U CN203459061U CN201320577636.3U CN201320577636U CN203459061U CN 203459061 U CN203459061 U CN 203459061U CN 201320577636 U CN201320577636 U CN 201320577636U CN 203459061 U CN203459061 U CN 203459061U
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Abstract
The utility model provides a dust aerosol generating device by which the aerosol generated is stable in concentration, and the concentration of the generated aerosol is same at different time. The dust aerosol generating device comprises a dust charging device, a dust aerosol generating device and a computer control system. An airflow passage comprises an airflow inlet, a dust contact part pipeline and an airflow outlet, wherein the dust contact part pipeline refers to a gap-shaped passage which is in contact with a dust dispersing brush, the airflow outlet is round, and a pipeline between the gap-shaped passage and the airflow outlet is enlarged gradually. By using a dust dispersing brush which is in rotation, dust in a piston barrel body is carried to a part in contact with the airflow passage, the airflow is sharply accelerated by a narrow gap in the airflow passage, and the dust is blown by high-speed airflow to form dust aerosol; the rotation speeds of a first motor and a second motor as well as the input speed of airflow are controlled to be three constant values by the computer control system, so that the generated aerosol is stable in concentration.
Description
Technical field
The utility model relates to a kind of dust aerosol generating device.In powder science, industrial production, quality control, detect, demarcate, or the field such as medical science, labour health, environmental protection sucks the aspects such as toxicity experimental study and has a wide range of applications.
Background technology
Inhalation toxicology be research can inhalation (inhalatio) to body toxic action occur, development and the various conditions of eliminating, rule and mechanism and to can inhalation (inhalatio) carrying out a science of hazard assessment.Its professional research contents mainly contains: the physicochemical property of various materials in air; The fundamental biological knowledge of respiratory tract; Deposition in vivo of inhalation (inhalatio) and delay and and body in interaction between important system, organ; These interactions are how to cause disease to produce.
Along with international inhalation toxicology research is increasingly active, lot of domestic experts has also been fully recognized that the significance of inhalation toxicology.Object from research, has couple crowd's investigation, also has pair animal to comprise the research of rat, mouse, rabbit, hamster etc.; Equipment from research, all adopts exposure in static total enclosure chamber; From the method for research, have and adopt epidemiological method, utilize Ultrasonic Diagnosis technology, coordination poison labelling method, radioaerosol pulmonary ventilation imaging technology, fluorescent antibody technics etc.; The longest contamination time has continuous contamination 8 hours, also has and carries out epidemiology survey to contacting 5 years above crowds; Have and carry out the experiment of whole animal lung lavage, also have and carry out isolated bronchia bronchoalveolar lavage fluid analysis; The kind of research poisonous substance more reaches and comprises more than tens kinds such as chlorine, desert dirt, unsymmetric dimethyl hydrazine, Diesel Exhaust, Vehicle Exhaust Particulate; The index of analyzing has that the enzyme histochemistry of rat sense of smell mucous membrane toxicity changes, tens kinds, variation, spleen NK cell and K cell, hepatomicrosome calcium pump, the blood platelet etc. of various enzymes in lung-douching fluid.
In existing inhalation toxicology research, the poisonous substance of research is mainly aerosol, aerosol comprises dust aerosol, the particle sphere that existing dust aerosol generator mainly blows in dust generation cavity by air-flow stirs the powder in dust generation cavity, make the powder stirring along with one, air-flow blows out, form dust aerosol.The aerosol concentration of finding after deliberation existing dust aerosol generator generation is inhomogeneous, aerosol particle is not of uniform size, dust granules is reunited and can not effectively be dispelled out, because the wave speed of particle sphere under air-flow is inconsistent, and the collision between particle sphere causes the aerosol concentration that do not produce in the same time inconsistent, the carrying out of impact experiment and the accuracy of experiment.
Utility model content
The purpose of this utility model is that a kind of dust aerosol generating device will be provided, and the aerosol concentration that this dust aerosol generating device produces is stable, and in the different moment, the concentration of the dust aerosol of generation is consistent.
To achieve these goals, the utility model provides a kind of dust aerosol generating device, comprises dust feeding device, dust aerosol generating device and computerized control system; Described dust feeding device comprises piston barrel, piston and transfer bar mechanism and the first motor, described transfer bar mechanism comprises push rod, described push rod is leading screw or screw rod, transfer bar mechanism motion described in described the first driven by motor, and described transfer bar mechanism promotes described piston and moves in described piston barrel; Described dust aerosol generating device comprises that dust disperses brush, the second motor and gas channel, and dust is dispersed brush rotation described in described the second driven by motor, and described dust is dispersed brush and connected described piston barrel and described gas channel; Described computerized control system is for controlling rotary speed, the rotary speed of described the second motor and the input speed of air-flow of described the first motor; Wherein, described gas channel comprises air flow inlet, dust contact position pipeline and air stream outlet; Described dust contact position pipeline is slot-shaped passage, described slot-shaped passage is dispersed brush with described dust and is contacted, described air stream outlet is circular port, and the pipeline between described slot-shaped passage and described air stream outlet is flaring pipeline, and described flaring pipeline is flaring shape.
Preferably, also comprise housing, described piston barrel, described piston, described transfer bar mechanism, described dust disperse brush and described gas channel is arranged on one end of the inside container cavity of described housing, and described computerized control system is arranged on the other end of described inner container cavity; Described dust aerosol generating device is arranged on the upper end of described dust feeding device.
Preferably, also comprise for the fixed card of fixing described piston barrel, on described piston barrel, be provided with the fixed lobe being used in conjunction with described fixed card.
Preferably, the dust port of export of described piston barrel is circular arc mouth, with described dust disperse brush concentric.
Preferably, also comprise alignment pin, in the locating slot of described alignment pin on the outer wall of described piston barrel, move.
Preferably, the first end that described dust is dispersed brush is provided with the first end cover, and the second end that described dust is dispersed brush is provided with the second end cover, and described the second end cover and described housing removably connect.
Preferably, between described air flow inlet and described dust contact position pipeline, be provided with gas-static chamber.
Preferably, between described push rod and described piston, be provided with push rod platform.
Preferably, on described push rod platform, be provided with nose cone, on the piston rod of described piston, be provided with the conical bore coordinating with described nose cone.
Preferably, described flaring pipeline comprises first paragraph pipeline and second segment pipeline, described first paragraph pipeline comprises base plane and the first sidepiece curved surface, and along airflow direction, the width of described base plane diminishes gradually, and the cross section trend forming between described the first sidepiece curved surface and described base plane becomes a semicircle, described second segment pipeline comprises the second sidepiece curved surface and the 3rd sidepiece curved surface, described the second sidepiece curved surface is connected with described the first sidepiece curved surface, variation tendency along described the first sidepiece curved surface changes, between described the second sidepiece curved surface and described base plane, finally become the first semicircle with cross section, described the 3rd sidepiece curved surface is connected with described base plane, along airflow direction, the cross section forming between described the 3rd sidepiece curved surface and described base plane sharply tends to a semicircle, final second semicircle that forms of cross section between described the 3rd sidepiece curved surface and described base plane, described the first semicircle and described the second semicircle form described air stream outlet, or described flaring pipeline comprises the 4th sidepiece curved surface and the 5th sidepiece curved surface, described the 4th sidepiece curved surface and described the 5th sidepiece curved surface are along the first plane of symmetry symmetric design, along airflow direction, the width of described first plane of symmetry diminishes gradually, and the cross section trend forming between described the 4th sidepiece curved surface and described first plane of symmetry becomes a semicircle, finally forms the 3rd semicircle.
Dust aerosol generating device of the present utility model, while dispersing brush rotation by dust, the powder in piston barrel is taken to the place contacting with gas channel, the narrow and small gap at gas channel place is sharply accelerated air velocity, and high velocity air dispels into dust aerosol by powder; By computerized control system, control the first motor and the rotating speed of the second motor and the input speed of air draught, these three amounts are definite value, the aerocolloidal aerosol concentration generating is stable, and in the different moment, the concentration of the dust aerosol of generation is consistent; Dust contact position pipe design, be slot-shaped passage, can make air-flow is herein high velocity air, is easy to take away powder; The pipe design between slot-shaped passage and air stream outlet, be flaring shape, reduce gradually the speed of air-flow, dust is uniformly distributed in air-flow, make aerocolloidal concentration consistent.
According to the detailed description to the utility model specific embodiment by reference to the accompanying drawings below, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present utility model more.
Accompanying drawing explanation
Hereinafter in exemplary and nonrestrictive mode, describe specific embodiments more of the present utility model in detail with reference to the accompanying drawings.In accompanying drawing, identical Reference numeral has indicated same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not draw in proportion.In accompanying drawing:
Fig. 1 is according to the schematic cross sectional views of the dust aerosol generating device of an embodiment of the utility model;
Fig. 2 be the dust aerosol generating device shown in Fig. 1 the schematic right side look cutaway view;
Fig. 3 is the partial enlarged drawing of A position in Fig. 2;
Fig. 4 is the schematic perspective view of the dust aerosol generating device shown in Fig. 1;
Fig. 5 is the cutaway view of the airflow line of another embodiment of the utility model.
The specific embodiment
Fig. 1 is according to the schematic cross sectional views of the dust aerosol generating device of an embodiment of the utility model.As shown in Figures 1 to 4, dust aerosol generating device can comprise dust feeding device, dust aerosol generating device and computerized control system 40 in general manner; Dust feeding device comprises piston barrel 21, piston 22 and transfer bar mechanism and the first motor 24, piston barrel 21 is interior for packing powder into, transfer bar mechanism comprises push rod 23, push rod 23 is leading screw or screw rod, the first motor 24 drives transfer bar mechanism motion, and transfer bar mechanism promotes piston 22 in the interior movement of piston barrel 21; Dust aerosol generating device comprise dust disperse brush the 31, second motor 32 and gas channel, the second motor 32 drives dust to disperse brush 31 rotations, dust is dispersed brush 31 and is connected piston 22 cylindrical shell 21 and gas channels, dust takes the powder in piston barrel 21 place contacting with gas channel to while dispersing brush 31 rotation, take slot-shaped passage place to, the narrow and small gap at gas channel place is sharply accelerated air velocity, and high velocity air dispels into dust aerosol by powder; Computerized control system 40 is for controlling rotary speed, second rotary speed of motor 32 and the input speed of air-flow of the first motor 24, the first motor 24 is the first servomotor, the second motor 32 is the second servomotor, these three amounts are definite value, the aerocolloidal aerosol concentration generating is stable, in the different moment, the concentration of the dust aerosol of generation is consistent; Gas channel comprises air flow inlet 71, dust contact position pipeline 73 and air stream outlet 74; Dust contact position pipeline 73 is slot-shaped passage, slot-shaped passage is dispersed brush with dust and is contacted, air stream outlet 74 is circular port, pipeline between slot-shaped passage and air stream outlet 74 is flaring shape, form flaring pipeline, dust contact position pipeline 73 is designed to slot-shaped passage, and can make air-flow is herein high velocity air, is easy to take away powder; The pipe design between slot-shaped passage and air stream outlet 74, be flaring shape, reduce gradually the speed of air-flow, dust is uniformly distributed in air-flow, make aerocolloidal concentration consistent.
In another one embodiment of the present utility model, the pipeline of the flaring shape between slot-shaped passage and air stream outlet 74 comprises first paragraph pipeline and second segment pipeline; First paragraph pipeline comprises base plane and the first sidepiece curved surface, and the width of base plane diminishes gradually, and along airflow direction, the cross section trend forming between the first sidepiece curved surface and base plane becomes a semicircle; Second segment pipeline comprises the second sidepiece curved surface and the 3rd sidepiece curved surface, the second sidepiece curved surface is connected with the first sidepiece curved surface, variation tendency along the first sidepiece curved surface changes, between the second sidepiece curved surface and base plane, finally become the first semicircle with cross section, the 3rd sidepiece curved surface is connected with base plane, along airflow direction, the cross section forming between the 3rd sidepiece curved surface and base plane sharply tends to a semicircle, final second semicircle that forms of cross section between the 3rd sidepiece curved surface and base plane; The first semicircle and the second semicircle form air stream outlet 74.
In another one embodiment of the present utility model, the boundary line of the plane of symmetry of the second sidepiece curved surface and the first sidepiece curved surface and flaring shape pipeline is straight line; The boundary line of the plane of symmetry of base plane and the 3rd sidepiece curved surface and flaring shape pipeline is a curve, and curve comprises straight line and an approximate quadrant contour.
In another one embodiment of the present utility model, as shown in Figure 5, flaring pipeline comprises the 4th sidepiece curved surface and the 5th sidepiece curved surface, and the 4th sidepiece curved surface and the 5th sidepiece curved surface are along the first plane of symmetry symmetric design; Along airflow direction, the width of first plane of symmetry diminishes gradually, and the cross section trend forming between the 4th sidepiece curved surface and first plane of symmetry becomes a semicircle, finally forms the 3rd semicircle.
In another one embodiment of the present utility model, conveniently moving for dust aerosol generating device, dust aerosol generating device also comprises housing 50, piston barrel 21, piston 22, transfer bar mechanism, dust disperse brush 31 and gas channel is arranged on one end of the inside container cavity of housing 50, computerized control system 40 is arranged on the other end of inner container cavity, and dust aerosol generating device is arranged on the upper end of dust feeding device.Dust aerosol generating device also comprises the fixed card 52 for fixed piston cylindrical shell 21, on piston barrel 21, be provided with the fixed lobe being used in conjunction with fixed card 52, fixed card 52 is sheet particularly, can be to slip into or skid off on housing 50 at fixed mount, the plane at slideway place, perpendicular to the axis of piston barrel 21, slips into skid off and is convenient to the installation of piston barrel 21 and taking off of piston barrel 21.
The dust port of export of piston barrel 21 is circular arc mouth, and to disperse brush 31 concentric with dust, is convenient to keep the dust port of export and dust to disperse the sealing between brush 31.In order to prevent that circular arc mouth and dust from dispersing, brush 31 dislocation, dust aerosol generating device also comprises alignment pin, in the locating slot of alignment pin on the outer wall of piston barrel 21, moves, and optimally, the axis of the axis of locating slot and piston barrel 21 be arranged in parallel.
In another one embodiment of the present utility model, dust is dispersed brush 31 first end and is provided with the first end cover, and the second end that dust is dispersed brush 31 is provided with the second end cover 51, for preventing that dust disperses the dust carrying on brush 31 and enter air.After experiment, for the ease of cleaning, the second end cover 51 removably connects with housing 50.Between air flow inlet 71 and dust contact position pipeline 73, be provided with gas-static chamber 72, for the air-flow that enters dust contact position pipeline 73 is first evenly distributed, prevent that the speed of air-flow is in the past inconsistent.Between push rod 23 and piston 22, be provided with push rod platform 25.On push rod platform 25, be provided with nose cone, be provided with the conical bore coordinating with nose cone on the piston rod of piston 22, piston 22 comprises piston head and piston rod.Push rod platform 25 is set and is conducive to the location of push rod 23 and the location of piston rod, two thin bars of anti-throw-out lever 23 and piston rod are docked and are caused and rock, and cause the concentration of dust aerosol unstable.Being designed with of nose cone and conical bore is beneficial to the taking-up of piston barrel 21 and location is installed.
The course of work of dust aerosol generating device is: take off the rear taking-up piston barrel 21 of fixed card 52, in piston barrel 21, fill powder, then piston barrel 21 is put back to original position, with alignment pin location, fixing by fixed card 52, the nose cone on push rod platform 25 is aimed to conical bore, after cooperation, first pass into air-flow, open the second motor 32 and the first motor 24, start to generate dust aerosol.Along with the rotation of the first motor 24, the powder in piston barrel 21 is finished gradually, and after being finished, closed gas flow and the second motor 32, the first motor 24 reversions, until can take off piston barrel 21, feed in raw material and recycle.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art, do not departing under the prerequisite of the utility model principle, any improvements and modifications of making also should be considered as protection domain of the present utility model.
Claims (10)
1. a dust aerosol generating device, comprises dust feeding device, dust aerosol generating device and computerized control system (40);
Described dust feeding device comprises piston barrel (21), piston (22) and transfer bar mechanism and the first motor (24), described transfer bar mechanism comprises push rod (23), described push rod (23) is leading screw or screw rod, described the first motor (24) drives described transfer bar mechanism motion, and it is mobile in described piston barrel (21) that described transfer bar mechanism promotes described piston (22);
Described dust aerosol generating device comprises that dust disperses brush (31), the second motor (32) and gas channel, described the second motor (32) drives described dust to disperse brush (31) rotation, and described dust is dispersed brush (31) and connected described piston barrel (21) and described gas channel;
Described computerized control system (40) is for controlling the rotary speed of described the first motor (24), the rotary speed of described the second motor (32) and the input speed of air-flow;
It is characterized in that,
Described gas channel comprises air flow inlet (71), dust contact position pipeline (73) and air stream outlet (74);
Described dust contact position pipeline (73) is slot-shaped passage, described slot-shaped passage is dispersed brush (31) with described dust and is contacted, described air stream outlet (74) is circular port, pipeline between described slot-shaped passage and described air stream outlet (74) is flaring pipeline, and described flaring pipeline is flaring shape.
2. dust aerosol generating device according to claim 1, it is characterized in that, also comprise housing (50), described piston barrel (21), described piston (22), described transfer bar mechanism, described dust are dispersed one end that brush (31) and described gas channel are arranged on the inside container cavity of described housing (50), and described computerized control system (40) is arranged on the other end of described inner container cavity; Described dust aerosol generating device is arranged on the upper end of described dust feeding device.
3. dust aerosol generating device according to claim 2, it is characterized in that, also comprise for the fixed card (52) of fixing described piston barrel (21), on described piston barrel (21), be provided with the fixed lobe being used in conjunction with described fixed card (52).
4. dust aerosol generating device according to claim 2, is characterized in that, the dust port of export of described piston barrel (21) is circular arc mouth, and to disperse brush (31) concentric with described dust.
5. dust aerosol generating device according to claim 4, is characterized in that, also comprises alignment pin, mobile in the locating slot of described alignment pin on the outer wall of described piston barrel (21).
6. dust aerosol generating device according to claim 2, it is characterized in that, the first end that described dust is dispersed brush (31) is provided with the first end cover, the second end that described dust is dispersed brush (31) is provided with the second end cover (51), and described the second end cover (51) removably connects with described housing (50).
7. according to the dust aerosol generating device described in any one in claim 1 to 6, it is characterized in that, between described air flow inlet (71) and described dust contact position pipeline (73), be provided with gas-static chamber (72).
8. dust aerosol generating device according to claim 7, is characterized in that, between described push rod (23) and described piston (22), is provided with push rod platform (25).
9. dust aerosol generating device according to claim 8, is characterized in that, on described push rod platform (25), is provided with nose cone, on the piston rod of described piston (22), is provided with the conical bore coordinating with described nose cone.
10. dust aerosol generating device according to claim 7, is characterized in that, described flaring pipeline comprises first paragraph pipeline and second segment pipeline, described first paragraph pipeline comprises base plane and the first sidepiece curved surface, and along airflow direction, the width of described base plane diminishes gradually, and the cross section trend forming between described the first sidepiece curved surface and described base plane becomes a semicircle, described second segment pipeline comprises the second sidepiece curved surface and the 3rd sidepiece curved surface, described the second sidepiece curved surface is connected with described the first sidepiece curved surface, variation tendency along described the first sidepiece curved surface changes, between described the second sidepiece curved surface and described base plane, finally become the first semicircle with cross section, described the 3rd sidepiece curved surface is connected with described base plane, along airflow direction, the cross section forming between described the 3rd sidepiece curved surface and described base plane sharply tends to a semicircle, final second semicircle that forms of cross section between described the 3rd sidepiece curved surface and described base plane, described the first semicircle and described the second semicircle form described air stream outlet (74),
Or described flaring pipeline comprises the 4th sidepiece curved surface and the 5th sidepiece curved surface, described the 4th sidepiece curved surface and described the 5th sidepiece curved surface are along the first plane of symmetry symmetric design; Along airflow direction, the width of described first plane of symmetry diminishes gradually, and the cross section trend forming between described the 4th sidepiece curved surface and described first plane of symmetry becomes a semicircle, finally forms the 3rd semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577636.3U CN203459061U (en) | 2013-09-18 | 2013-09-18 | Dust aerosol generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577636.3U CN203459061U (en) | 2013-09-18 | 2013-09-18 | Dust aerosol generating device |
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| Publication Number | Publication Date |
|---|---|
| CN203459061U true CN203459061U (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320577636.3U Expired - Lifetime CN203459061U (en) | 2013-09-18 | 2013-09-18 | Dust aerosol generating device |
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| CN (1) | CN203459061U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289427A (en) * | 2014-05-27 | 2016-02-03 | 帕洛阿尔托研究中心公司 | Methods and systems for creating aerosols |
| DE102015203879A1 (en) * | 2015-03-04 | 2016-09-08 | Forschungszentrum Jülich GmbH | Device for aerosol production from solid |
| CN107807072A (en) * | 2017-10-24 | 2018-03-16 | 辽宁工程技术大学 | Diffused dust generator is expanded in rotation |
-
2013
- 2013-09-18 CN CN201320577636.3U patent/CN203459061U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289427A (en) * | 2014-05-27 | 2016-02-03 | 帕洛阿尔托研究中心公司 | Methods and systems for creating aerosols |
| CN105289427B (en) * | 2014-05-27 | 2019-09-20 | 帕洛阿尔托研究中心公司 | For generating the method and system of aerosol |
| DE102015203879A1 (en) * | 2015-03-04 | 2016-09-08 | Forschungszentrum Jülich GmbH | Device for aerosol production from solid |
| CN107807072A (en) * | 2017-10-24 | 2018-03-16 | 辽宁工程技术大学 | Diffused dust generator is expanded in rotation |
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Granted publication date: 20140305 |