CN109470594A - A kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer - Google Patents
A kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer Download PDFInfo
- Publication number
- CN109470594A CN109470594A CN201811269886.4A CN201811269886A CN109470594A CN 109470594 A CN109470594 A CN 109470594A CN 201811269886 A CN201811269886 A CN 201811269886A CN 109470594 A CN109470594 A CN 109470594A
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- China
- Prior art keywords
- toxicant exposure
- evaporation
- drum
- heating
- exposure cabinet
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
Abstract
The present invention relates to a kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producers, include: shell: including drum and can open and close type be fixed on the upper cover at the top of drum, the side wall of drum is equipped with air inlet and air outlet, and air inlet is connect with air compressor, and gas outlet is connect with toxicant exposure cabinet；Material frame: electronic scale including bottom, the bracket being fixed on electronic scale and the surface plate for being placed on cantilever tip, material to be measured are placed in surface plate；Heating unit: being arranged in the lower section of surface plate, for the material to be measured in heating surface ware.Compared with prior art, heat is also easy to produce the product formation smog of smog using electric-heating-wire-heating principle by the present invention, the smog of generation is sent into toxicant exposure cabinet by the pressure-air constantly blasted by air inlet from gas outlet connecting tube, toxicity on inhalation test contamination is carried out to experimental animal, which can measure the concentration value for generating gas with direct quantitative.
Description
Technical field
The present invention relates to viral infection test technical fields, and in particular to a kind of quantitative direct-evaporation-type toxicant exposure cabinet smog generation
Device.
Background technique
Toxicity on inhalation test is to evaluate inhalable test specimen, as volatile materials, aerosol or particulate matter could be through exhaling
Road absorption and its toxicity size are inhaled, in order to carry out toxicity grading and mark to test specimen.Inhalation device is that research is each
Kind important tool of the poisonous substance through inhalation exposure, is widely used in environmental protection, industrial hygiene and pesticide toxicology research, main
It to include static suction apparatus and dynamic suction apparatus.Static suction apparatus is due to inevitably by animal exhaled gas
Influence and with exposure compartment indoor oxygen consumption and form influence of the hypoxia to experimental animal, just gradually move back at present
The arena of history out.Dynamic sucking refers to that experimental animal is in the exposure compartment of air flowing, and toxic air is continued with constant speed
It inputs in cabinet, while air is discharged out of cabinet with equal constant speed.With the development of science and technology with the demand of reality, it is based on sucking mould
The toxicologic study of type is rapidly developed and applies.
The sampling system of inhalation toxicant exposure cabinet is the key component applied to the test.The atomization of current Inhalation equipment
Sampling system has solid powder aerosol generator and liquid aersol generator, prevents as patent CN105944632A discloses one kind
The only powder aerosol generator of low-flow drug agglomeration, including rapping apparatus, diffuser and controller (6), rapping apparatus
Including by electromagnet (1), cover board (2), reset spring (3), bracket (4)；Cover board (2) the i.e. top plate of toxicant exposure cabinet, electromagnet (1) are logical
Screw is crossed to be fixed on cover board (2)；Bracket (4) is fixed on cover board (2) by its four threaded rod being equipped with, electromagnet (1)
On vibrating shaft pass through cover board (2) and bracket (4) center circular hole be bonded with sprayer (5)；It is worn among reset spring (3)
There is screwed stainless steel shaft, the circular hole passed through on bracket (4) is bonded with sprayer (5).But for smoke agent
Generator is also in blank stage.Many agricultural chemical insecticide products are all the states of smoke agent in the market, evaluate its sucking in the past
Toxicity can only be in such a way that quiet formula sucks, and dynamic formula is sucked due to lacking suitable generator, to restrict its development.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of dynamic quantitative straight
Connect vaporation-type toxicant exposure cabinet aerosol producer.
The purpose of the present invention can be achieved through the following technical solutions: a kind of quantitative direct-evaporation-type toxicant exposure cabinet smog hair
Raw device, the toxicant exposure cabinet aerosol producer include:
Shell: including drum and can open and close type be fixed on the upper cover at the top of drum, the side wall of the drum is equipped with air inlet
Mouth and gas outlet, the air inlet are connect with air compressor, and the gas outlet is connect with toxicant exposure cabinet；
Material frame: electronic scale including bottom, the bracket being fixed on electronic scale and the table for being placed on cantilever tip
Face ware, material to be measured are placed in surface plate；
Heating unit: being arranged in the lower section of surface plate, for the material to be measured in heating surface ware.
Preferably, the heating unit includes two binding posts being vertically arranged, two piece-root grafting terminal tops is arranged in
Heating wire and temperature thermocouple for measuring heating temperature.
The heating wire and temperature thermocouple are located at the lower part of surface plate, and do not contact with surface plate and bracket.By connecing
Terminal is hanging by heating wire so that heating wire and temperature thermocouple are not contacted with surface plate and bracket, can to avoid heating wire and
Temperature thermocouple has an impact electronic scale reading.
The bottom of the drum is equipped with plastic feet, and the plastic feet is equipped with heating power supply connector, electronic scale power supply
The bottom of connector and thermocouple junction, the heating power supply connector and terminal connects, the electronic scale power connection and electronics
Scale connection, the thermocouple junction are connect with temperature thermocouple.
The toxicant exposure cabinet aerosol producer is equipped with controller, the controller and thermocouple junction and electronic scale power connection
Connection, for controlling the on-off for the heating power supply line connecting with heating power supply connector.Heating temperature is monitored by temperature thermocouple
Variation, and adjust by controller the on-off of heating wire, i.e. heating temperature, to guarantee that powdered material to be measured is more equal
Even generation salt fog.
The controller is PLC controller.
The air inlet is located at the lower section of drum, and gas outlet is located at the top of drum, and the air inlet and air outlet with
Drum inner wall is tangent.The setting can make air rise in the shape of a spiral in drum, mix gas more evenly with smog.
The material of the drum is transparent glass, convenient for observation electronic scale reading.
Compared with prior art, the beneficial effects of the present invention are embodied in following several respects:
1) a kind of novel smog agent generator is provided for domestic inhalation toxicant exposure cabinet；
2) concentration value of gas in toxicant exposure cabinet can be directly calculated by the evaporation capacity of material, it is simple and convenient；
3) structure is simple, and glass cylinder is easily operated.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the present invention looks up structural representation of heating wire, temperature thermocouple and surface plate.
Wherein, 1 is binding post, and 2 be heating wire, and 3 be gas outlet, and 4 be upper cover, and 5 be drum, and 6 be temperature thermocouple, and 7 are
Bracket, 8 be electronic scale, and 9 be air inlet, and 10 be heating power supply line, and 11 be thermocouple junction, and 12 be plastic feet, and 13 be electronics
Scale power connection, 14 be heating power supply connector, and 15 be surface plate, and 16 be material to be measured.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
A kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer, structure are as shown in Figure 1, comprising:
Shell: including drum 5 and can open and close type be fixed on the upper cover 4 at the top of drum 5, the side wall of drum 5 is equipped with air inlet
Mouth 9 and gas outlet 3, air inlet 9 are connect with air compressor, and gas outlet 3 is connect with toxicant exposure cabinet；
Material frame: electronic scale 8 including bottom, the bracket 7 being fixed on electronic scale 8 and it is placed on 7 top of bracket
Surface plate 15, material 16 to be measured is placed in surface plate 15；
Heating unit: being arranged in the lower section of surface plate 15, for the material to be measured 16 in heating surface ware 15.
Heating unit include two binding posts being vertically arranged 1, the heating wire 2 that two piece-root grafting terminals, 1 top is set and
For measuring the temperature thermocouple 6 of 2 heating temperature of heating wire.Heating wire 2 and temperature thermocouple 6 are located at the lower part of surface plate 15,
And do not contacted with surface plate 15 and bracket 7, as shown in Figure 2.
The bottom of drum 5 is equipped with plastic feet 12, and plastic feet 12 is equipped with heating power supply connector 14, electronic scale power supply connects
First 13 and thermocouple junction 11, heating power supply connector 14 connect with the bottom of terminal, electronic scale power connection 13 and electronic scale 8
Connection, thermocouple junction 11 are connect with temperature thermocouple 6.
Toxicant exposure cabinet aerosol producer is equipped with PLC controller, which connects with thermocouple junction 11 and electronic scale power supply
First 13 connection, for controlling the on-off for the heating power supply line 10 connecting with heating power supply connector 14.
Air inlet 9 is located at the lower section of drum 5, and gas outlet 3 is located at the top of drum 5, and air inlet 9 and gas outlet 3 and circle
5 inner walls of bucket are tangent.
Specific operation process is as described below::
The material to be measured 16 for taking a certain amount of heating to be also easy to produce smog is placed in surface plate 15, is recorded using electronic scale 8 to be measured
The weight of material 16.PLC controller and thermocouple junction 11 and heating power supply connector 14 are connected, selects heating wire 2 as needed
Heating temperature, make material to be measured 16 in surface plate 15 is heated to generate smog.Air compressor is recycled to be passed through toward air inlet 9
Pressure-air, after mixing with smog, eddy flow rises gas from lower to upper, and the exposure of Inhalation equipment is passed through by gas outlet 3
Cabin.After the test in recording surface ware material 16 to be measured remaining weight, pass through the evaporation rate of flow rate of carrier gas and material
Comparison can directly calculate the gas concentration in toxicant exposure cabinet.
Claims (8)
1. a kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer, which is characterized in that the toxicant exposure cabinet aerosol producer includes:
Shell: including drum (5) and can open and close type be fixed on the upper cover (4) at the top of drum (5), the side wall of the drum (5)
Equipped with air inlet (9) and gas outlet (3), the air inlet (9) connect with air compressor, the gas outlet (3) and toxicant exposure cabinet
Connection；
Material frame: it electronic scale (8) including bottom, the bracket (7) being fixed on electronic scale (8) and is placed on bracket (7)
The surface plate (15) on top, material (16) to be measured are placed in surface plate (15)；
Heating unit: setting is in the lower section of surface plate (15), for the material to be measured (16) in heating surface ware (15).
2. a kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer according to claim 1, which is characterized in that described
Heating unit include two binding posts being vertically arranged (1), setting two piece-root grafting terminal (1) tops heating wire (2) and use
In the temperature thermocouple (6) of measurement heating temperature.
3. a kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer according to claim 2, which is characterized in that the electricity
Heated filament (2) and temperature thermocouple (6) are located at the lower part of surface plate (15), and do not contact with surface plate (15) and bracket (7).
4. a kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer according to claim 2, which is characterized in that the circle
The bottom of bucket (5) is equipped with plastic feet (12), and the plastic feet (12) is equipped with heating power supply connector (14), electronic scale power supply
Connector (13) and thermocouple junction (11), the heating power supply connector (14) connect with the bottom of terminal (1), the electronic scale
Power connection (13) is connect with electronic scale (8), and the thermocouple junction (11) connect with temperature thermocouple (6).
5. a kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer according to claim 4, which is characterized in that the dye
Malicious cabinet aerosol producer is equipped with controller, and the controller is connect with thermocouple junction (11) and electronic scale power connection (13),
For controlling the on-off for the heating power supply line (10) connecting with heating power supply connector (14).
6. a kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer according to claim 5, which is characterized in that the control
Device processed is PLC controller.
7. a kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer according to claim 1, which is characterized in that it is described into
Port (9) is located at the lower section of drum (5), and gas outlet (3) are located at the top of drum (5), and the air inlet (9) and gas outlet
(3) tangent with drum (5) inner wall.
8. a kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer according to claim 1, which is characterized in that the circle
The material of bucket (5) is transparent glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811269886.4A CN109470594A (en) | 2018-10-29 | 2018-10-29 | A kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811269886.4A CN109470594A (en) | 2018-10-29 | 2018-10-29 | A kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109470594A true CN109470594A (en) | 2019-03-15 |
Family
ID=65666331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811269886.4A Pending CN109470594A (en) | 2018-10-29 | 2018-10-29 | A kind of quantitative direct-evaporation-type toxicant exposure cabinet aerosol producer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109470594A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707561A (en) * | 2005-04-29 | 2005-12-14 | 清华大学 | Analog fire smoke releasing device |
| CN101096017A (en) * | 2007-04-29 | 2008-01-02 | 南方医科大学 | Modified type static inhalation toxicant exposure cabinet |
| CN204556433U (en) * | 2015-05-14 | 2015-08-12 | 安徽中烟工业有限责任公司 | A kind of device for real-time analysis tobacco pyrolysis smoke release characteristics |
| CN105424540A (en) * | 2015-11-30 | 2016-03-23 | 国网河南省电力公司电力科学研究院 | Testing device for volatilization properties of ammonium bisulfate in coal-fired flue gas |
| CN206258335U (en) * | 2016-12-07 | 2017-06-16 | 中国石油大学(北京) | Fuel conflagration specificity analysis device |
| CN206648983U (en) * | 2017-04-10 | 2017-11-17 | 南京精锋制刀有限公司 | A kind of Analysis of Metallic Materials device |
| CN108444857A (en) * | 2018-06-08 | 2018-08-24 | 天津市生态环境监测中心 | A kind of portable exhaust gas water capacity gravimetric detemination instrument |
-
2018
- 2018-10-29 CN CN201811269886.4A patent/CN109470594A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707561A (en) * | 2005-04-29 | 2005-12-14 | 清华大学 | Analog fire smoke releasing device |
| CN101096017A (en) * | 2007-04-29 | 2008-01-02 | 南方医科大学 | Modified type static inhalation toxicant exposure cabinet |
| CN204556433U (en) * | 2015-05-14 | 2015-08-12 | 安徽中烟工业有限责任公司 | A kind of device for real-time analysis tobacco pyrolysis smoke release characteristics |
| CN105424540A (en) * | 2015-11-30 | 2016-03-23 | 国网河南省电力公司电力科学研究院 | Testing device for volatilization properties of ammonium bisulfate in coal-fired flue gas |
| CN206258335U (en) * | 2016-12-07 | 2017-06-16 | 中国石油大学(北京) | Fuel conflagration specificity analysis device |
| CN206648983U (en) * | 2017-04-10 | 2017-11-17 | 南京精锋制刀有限公司 | A kind of Analysis of Metallic Materials device |
| CN108444857A (en) * | 2018-06-08 | 2018-08-24 | 天津市生态环境监测中心 | A kind of portable exhaust gas water capacity gravimetric detemination instrument |
Non-Patent Citations (1)
| Title |
|---|
| 曲东: "《环境监测》", 31 August 2007, 中国农业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190315 |
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| RJ01 | Rejection of invention patent application after publication |