CN202110166U - Dynamic toxicant exposure device for toxic gas - Google Patents
Dynamic toxicant exposure device for toxic gas Download PDFInfo
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- CN202110166U CN202110166U CN2011201785260U CN201120178526U CN202110166U CN 202110166 U CN202110166 U CN 202110166U CN 2011201785260 U CN2011201785260 U CN 2011201785260U CN 201120178526 U CN201120178526 U CN 201120178526U CN 202110166 U CN202110166 U CN 202110166U
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- drip washing
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Abstract
The utility model provides a dynamic toxicant exposure device for toxic gas. The dynamic toxicant exposure device consists of an air distribution device, a transparent toxicant exposure cabinet and a waste gas treatment device, and a gas power system consists of an air blower, an air extractor and an exhaust fan. The dynamic toxicant exposure device is mainly characterized in that: toxicant exposure gas can be diluted to extremely low concentration by air in an air distribution system; and the dynamic toxicant exposure device is mainly suitable for testing biological changes such as toxicology, physiology, pathology and the like of animals and plants exposed in different toxic gas. By the device, the concentration of the toxicant exposure gas is easily regulated and controlled, the toxicant exposure concentration is stable, low-concentration toxicant exposure can be performed, and toxic waste gas cannot be discharged to atmospheric environment by being leached after experiments. Moreover, the manufacturing cost of the device is low.
Description
Technical field
The utility model relates to contamination device, specifically belongs to a kind of toxic gas dynamic inhalation system of testing usefulness.
Background technology
Sulphuric dioxide (SO
2), nitrogen dioxide (NO
2), ammonia (NH
3) to wait be common atmospheric environment toxic gas pollutant, it is increasingly extensive deep to the health Study on Effect.This type research that is established as of toxic gas dynamic inhalation system provides important means.Tradition exposure in static total enclosure chamber device environmental index in experiment is wayward, and TC is unstable, the animal used as test oxygen supply is not enough, and is prone to cause environmental pollution.The dynamic inhalation system that uses at present to the contamination gas concentration not easy-regulating, concentration of contamination unstable, can not carry out the low concentration contamination, and material is expensive, cost of manufacture is very high, the direct emptying contaminated environment of poisonous fume after the experiment or poisonous fume are handled material expensive and be difficult for obtaining.These shortcomings not only make the accuracy of experimental result and safety of environment property receive obvious influence, and owing to costing an arm and a leg and can not carrying out the low concentration contamination use of dynamic inhalation system are very limited.Particularly to mordant toxic gas pollutant such as SO
2, NO
2, NH
3Dynamic inhalation system do not appear in the newspapers so far.
The utility model content
The purpose of the utility model is to provide a kind of toxic gas dynamic inhalation system; The low concentration contamination is stablized, can be carried out to this device to contamination gas concentration easy-regulating, concentration of contamination; Poisonous fume after the experiment can not enter atmospheric environment, and the device cost of manufacture is lower.
A kind of toxic gas dynamic inhalation system that the utility model provides is made up of air distributing device, transparent toxicant exposure cabinet and emission-control equipment; Air distributing device is by fan blower, the toxic gas steel cylinder, and the plastics snorkel, plastic filter screen, first gas meter, second gas meter, first gas mixer chamber, second gas mixer chamber and ring-shaped plastics porous snorkel are formed; Described toxic gas steel cylinder is equipped with corrosion resistant high-pressure valve and reduction valve; The gas vent of steel cylinder is connected with the plastics snorkel through hose, and the plastics snorkel links to each other with first gas mixer chamber; First gas mixer chamber is communicated with the ring-shaped plastics porous snorkel of setting in second gas mixer chamber through anticorrosion pipeline, is provided with porous barrier between second gas mixer chamber and the transparent toxicant exposure cabinet; Transparent toxicant exposure cabinet is provided with the door that can open and seal, also is provided with thieff hatch; Transparent toxicant exposure cabinet top is provided with air pump, and the air pump gas vent links to each other with the first poison gas drip washing chamber of emission-control equipment through gas outlet; The first poison gas drip washing chamber of emission-control equipment links to each other through second exhaust pipe with the second poison gas drip washing chamber, and the second poison gas drip washing chamber links to each other through the 3rd gas outlet with vent fan; Top, the first poison gas drip washing chamber is equipped with the first plastics fountain head, and top, the second poison gas drip washing chamber is equipped with the second plastics fountain head, and the first poison gas drip washing chamber and the second poison gas drip washing chamber feed leacheate through anticorrosion pipeline respectively and handle bucket.
Said porous barrier is porous armourplate glass or porous hard plastic plate.
Described air pump is and the suitable smoke exhaust ventilator of transparent toxicant exposure cabinet top dimension.
The described first poison gas drip washing chamber, the second poison gas drip washing chamber and leacheate are handled bucket and are the resistant material made.The employed pipe of entire equipment (road) also is the resistant material made.
The volumetric ratio of described first gas mixer chamber, second gas mixer chamber and transparent toxicant exposure cabinet is 0.2-0.4: 0.2-0.4: 1.
Described second gas flow is counted the gas micro-flowmeter of resist chemical.
The gas motion dynamical system that the utility model adopts is that fan blower promotes air movement and mixes the back with toxic gas to get into transparent toxicant exposure cabinet, combines the twitch to this mixed gas of air pump and exhaust fan, mixed gas is moved at the uniform velocity and gently.Animal exposes wherein, and life and contamination condition have guaranteed the accuracy of experimental result near real conditions.
Adopting fan blower to promote a large amount of air moves in the plastics snorkel; Meanwhile adopt a small amount of toxic gas is added the snorkel that contains a large amount of air through hose or plastic tube; And the method for diluting once more through first gas mixer chamber and second gas mixer chamber; Make contamination gas can be diluted to even and very low concentration, thereby low concentration poison gas Biological Effects can be carried out.Because the toxic gas pollutant levels are generally lower in the environment, thus the toxic gas that the utility model carries out contamination can with the approaching state of environment truth under carry out.
Toxic gas in the plastics snorkel by preliminarily diluted; Again behind the first gas mixer chamber secondary mixed diluting; Get into second gas mixer chamber through oval ring-type sponge plastics pipeline; Make the concentration of poison gas in mixed gas more even, escape into transparent toxicant exposure cabinet again, contamination gas evenly distributes in transparent toxicant exposure cabinet under promotion of fan blower wind-force and air pump suction acting in conjunction.Because transparent toxicant exposure cabinet top is connected with air pump, and the power of gas motion is replenished, and the speed of gas motion in the transparent toxicant exposure cabinet is controlled, this feasible toxic gas such as SO more great than air ratio
2Can not be deposited on transparent toxicant exposure cabinet bottom, can make the unlikely too early escape of the lighter-than-air contamination gas of proportion yet, thereby make the vertical concentration uniformity of poison gas in the transparent toxicant exposure cabinet.
Adopt tap water drip washing ease of solubility toxic gas, make toxic gas dissolve in leacheate.The leacheate that contains the poison gas hyrate also in time carries out neutralisation treatment and generates salt solusion through corrosion-resistant pipe such as pvc pipe entering leacheate processing bucket under action of gravity.Thereby make toxic gas can not enter atmospheric environment, the protection environment does not receive the pollution of the toxic gas that tries.
Description of drawings
Fig. 1 is the structural representation of the utility model toxic gas dynamic inhalation system
Fig. 2 is the structural representation of the dividing plate in the utility model toxic gas dynamic inhalation system
Among the figure: the 1-fan blower; The 2-plastic filter screen; 3-plastics snorkel; 4-first flow meter; 5-toxic gas steel cylinder; The 6-hose; 7-second flowmeter; The 8-high-pressure valve; The 9-reduction valve; The corrosion-resistant blowout-back pressure gauge of 10-; The corrosion-resistant decompression tensimeter of 11-; 12-first gas mixer chamber; 13-second gas mixer chamber; 14-ring-shaped plastics porous snorkel; The 15-venthole; The 16-porous barrier; The 17-pore; The transparent toxicant exposure cabinet of 18-; The 19-thieff hatch; The 20-air pump; The 21-downtake pipe; The 22-first poison gas drip washing chamber; The 23-first plastics fountain head; 24-first running water valve; 25-first running water pipe; The 26-second exhaust pipe; 27-first drainage valve; 28-first downcomer; 29-second running water pipe; 30-second running water valve; The 31-second plastics fountain head; 32-the 3rd gas outlet; The 33-vent fan; 34-room wall; The 35-second poison gas drip washing chamber; 36-second downcomer; 37-second drainage valve; The 39-leacheate is handled bucket; The 40-reactant liquor; Discharge tube after the 41-liquid waste processing.
Embodiment
Toxic gas dynamic inhalation system such as Fig. 1, shown in Figure 2: form by air distributing device, transparent toxicant exposure cabinet and emission-control equipment.Generally should be at 20m
2About the laboratory in the two-way air-conditioning of 1.5P Gree board is installed, room temperature tentatively is controlled at 20-30 ℃ of scope (requiring according to animal used as test).The work of air distributing device be air and toxic gas on demand concentration mix and send into transparent toxicant exposure cabinet through pipeline, its composition is as shown in Figure 1, mainly by fan blower 1; Be contained in the high pressure high-purity toxic gas steel cylinder 5 (buying) in the special steel cylinder from specialized company; Plastics snorkel 3, plastic filter screen 2, the first gas meters 4, second gas meter 7; First gas mixer chamber 12 and second gas mixer chamber 13, and ring-shaped plastics porous snorkel 14 is formed.The toxic gas that supplies contamination to use is gas such as sulphuric dioxide (SO soluble in water
2), nitrogen dioxide (NO
2), ammonia (NH
3) etc., all in special cylinder 5, exist with high-pressure liquid, corrosion resistant high-pressure valve 8 and reduction valve 9 are housed.During the contamination beginning; At first start air-blaster 1; Its power is being as the criterion air push to transparent toxicant exposure cabinet top; Quantity with the volume of transparent toxicant exposure cabinet and animal used as test, plant is selected fan blower or air quantity, and air quantity is crossed the too fast or air quantity of ambassador's air movement, and too small that air movement is crossed is slow all suitable.After air-blaster 1 is opened, make air pass through plastic filter screen and filter 2,, after first gas meter 4 is regulated flow, get into first gas mixer chamber 12 again through plastics snorkel 3.Continue it; Steel cylinder 5 mesohighs contamination gas gets into hose 6 through special high-pressure valve 8 and reduction valve 9 by steel cylinder; Regulate the poison gas flow through corrosion resistant second gas meter 7 again and get in the plastics snorkel 3, tentatively mix, get into first gas mixer chamber 12 with air movement with air by hose.Toxic gas further mixes after ring-shaped plastics porous snorkel 14 gets into second gas mixer chamber 13 at first gas mixer chamber 12 with air, fully mixes formation concentration again and contaminates gas uniformly and get into transparent toxicant exposure cabinet 18.The volumetric ratio of first gas mixer chamber, second gas mixer chamber and transparent toxicant exposure cabinet is 0.3: 0.3: 1.
Transparent toxicant exposure cabinet 18 is processed volume 1m by clear glass (thickness of glass is advisable with 0.5-1cm) or organic glass or transparent toughened glass
3, front or side are provided with thieff hatch 19, supply to analyze needing of poison gas concentration sampling.Be placed with the porous armourplate glass that can take out or porous hard plastic plate 16 between the transparent toxicant exposure cabinet 18 and second gas mixer chamber 13 to place animal used as test or plant.Transparent toxicant exposure cabinet is provided with the door that can seal.Place and take out animal for ease, the plastics cage of porous is put into transparent toxicant exposure cabinet 18 again around can animal or plant being put in advance.With contaminating behind the transparent toxicant exposure cabinet door sealing.Transparent toxicant exposure cabinet 18 open-top also link to each other with air pump 20, so that the gas in the transparent toxicant exposure cabinet 18 can constantly get into and discharge.Because the expulsive force of 1 pair of air of fan blower is subdued at transparent toxicant exposure cabinet 18 tops; So air pump 20 is installed to aspirate the gas in the transparent toxicant exposure cabinet 18; Make double action and the uniform motion of the draft of thrust that contamination gas receives fan blower and air pump, and the gas outlet 21 entering emission-control equipments through the PVC material.
Emission-control equipment mainly by the first poison gas drip washing chamber 22, the second poison gas drip washing chamber 35 of PVC material, handle bucket 39 and form with vent fan 33 by leacheate.Contamination waste gas is pumped to the snorkel 21 of PVC material through air pump and is got into the first poison gas drip washing chamber 22 and the second poison gas drip washing chamber 35 again.Top, drip washing chamber is equipped with first, second plastics fountain head 23,31 that links to each other with first, second running water pipe 25,29; Toxic gas is most of water-soluble and get into leacheate through the first poison gas drip washing chamber 22; Remaining toxic gas can all be dissolved in leacheate through 35 of the second poison gas drip washing chambers again; The leacheate that the first poison gas drip washing chamber 22 and second poison gas drip washing chamber 35 drip washing go out gets into leacheate through pvc pipe 28,36 and handles bucket 39; Leacheate handle be placed with in the bucket can in the chemical substance strong solution 40 of leacheate, make the toxic gas hyrate that is dissolved in the leacheate generate salt and do further processing.Gas through the first poison gas drip washing chamber 22 and second poison gas drip washing chamber 35 twice drip washing has not contained toxic gas or reached emission standard, and is outdoor through the exhaust fan discharge again, thereby avoided the pollution of toxic gas to atmospheric environment.
The toxic gas that uses this device to contaminate should be gas soluble in water, comprises the gas strong to metal protection, for example SO
2, NO
2, NH
3If use the toxic gas such as the H that are insoluble in water
2S etc. should use different exhaust treatment systems instead with the processing of contaminating of this device.For liquid toxic gas such as the HF under the non-high pressure conditions, formaldehyde then should adopt the device that makes HF, formalin heating and gasifying like adopting this device to contaminate, and imports plastics snorkel 3 again and tentatively mixes, and later device and flow process are with above-mentioned embodiment.
For different toxic gases, it is different that leacheate is handled the neutralization reaction chemicals of placing in the bucket.For example (1) is used for and SO
2Or NO
2The chemicals of hydrate can be selected NaOH, Na for use
2CO
3, NaHCO
3Deng alkaline chemical.These chemicals and SO
2The hyrate reaction generates Na
2SO
3And NaHSO
3, and and NO
2The hyrate reaction generates NaNO
2And NaNO
3(2) be used for and NH
3Hyrate (NH
4OH) chemicals should be inorganic acids such as industrial hydrochloric acid, sulfuric acid, and reaction generates NH
4Cl or (NH
4)
2SO
4Deng inorganic salts.
Claims (6)
1. a toxic gas dynamic inhalation system is characterized in that, is made up of air distributing device, transparent toxicant exposure cabinet and emission-control equipment; Air distributing device is by fan blower (1), toxic gas steel cylinder (5), plastics snorkel (3); Plastic filter screen (2); First gas meter (4), second gas meter (7), first gas mixer chamber (12), second gas mixer chamber (13) and ring-shaped plastics porous snorkel (14) are formed; Described toxic gas steel cylinder (5) is equipped with corrosion resistant high-pressure valve (8) and reduction valve (9); The gas vent of steel cylinder (5) is connected with plastics snorkel (3) through hose (6), and plastics snorkel (3) links to each other with first gas mixer chamber (12); First gas mixer chamber (12) is communicated with the ring-shaped plastics porous snorkel (14) of setting in second gas mixer chamber (13) through anticorrosion pipeline, is provided with porous barrier (16) between second gas mixer chamber (13) and the transparent toxicant exposure cabinet (18); Transparent toxicant exposure cabinet (18) is provided with the door that can open and seal, also is provided with thieff hatch (19); Transparent toxicant exposure cabinet (18) top is provided with air pump (20), and air pump (20) gas vent links to each other with the first poison gas drip washing chamber (22) of emission-control equipment through gas outlet (21); The first poison gas drip washing chamber (22) of emission-control equipment links to each other through second exhaust pipe (26) with the second poison gas drip washing chamber (35), and the second poison gas drip washing chamber (35) links to each other through the 3rd gas outlet (32) with vent fan (33); Top, the first poison gas drip washing chamber (22) is equipped with the first plastics fountain head (23); Top, the second poison gas drip washing chamber (35) is equipped with the second plastics fountain head (31), and the first poison gas drip washing chamber (22) and the second poison gas drip washing chamber (35) feed leacheate through anticorrosion pipeline respectively and handle bucket (39).
2. toxic gas dynamic inhalation system according to claim 1 is characterized in that, described porous barrier (16) is porous armourplate glass or porous hard plastic plate.
3. toxic gas dynamic inhalation system according to claim 1 is characterized in that, described air pump (20) is and the suitable smoke exhaust ventilator of transparent toxicant exposure cabinet (18) top dimension.
4. toxic gas dynamic inhalation system according to claim 1 is characterized in that, the described first poison gas drip washing chamber (22), the second poison gas drip washing chamber (35) and leacheate are handled bucket (39) and be the resistant material made.
5. toxic gas dynamic inhalation system according to claim 1 is characterized in that, described first gas mixer chamber (12), second gas mixer chamber (13) are 0.2-0.4: 0.2-0.4 with the volumetric ratio of transparent toxicant exposure cabinet (18): 1.
6. toxic gas dynamic inhalation system according to claim 1 is characterized in that, described second gas meter (7) is the gas micro-flowmeter of resist chemical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201785260U CN202110166U (en) | 2011-05-26 | 2011-05-26 | Dynamic toxicant exposure device for toxic gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201785260U CN202110166U (en) | 2011-05-26 | 2011-05-26 | Dynamic toxicant exposure device for toxic gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202110166U true CN202110166U (en) | 2012-01-11 |
Family
ID=45435611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201785260U Expired - Fee Related CN202110166U (en) | 2011-05-26 | 2011-05-26 | Dynamic toxicant exposure device for toxic gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202110166U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935018A (en) * | 2012-11-13 | 2013-02-20 | 天津开发区合普工贸有限公司 | Animal experiment device for passive smoke produced by human smoking |
| CN103385769A (en) * | 2013-08-19 | 2013-11-13 | 天津开发区合普工贸有限公司 | Integrated sectioning cavity multi-concentration gas contamination device |
| CN104116573A (en) * | 2014-08-06 | 2014-10-29 | 南通大学 | Up-and-down type filtered CO poisoning device |
| CN104127257A (en) * | 2014-08-01 | 2014-11-05 | 南通大学 | Filtered internal and external type carbon monoxide poisoning device |
| CN104240574A (en) * | 2014-09-24 | 2014-12-24 | 南通大学 | Internal-external filtering type carbon monoxide poisoning testing device and testing method |
| CN104306081A (en) * | 2014-11-11 | 2015-01-28 | 黑龙江省中医药科学院 | Rodent respiratory system exposure contamination device |
| CN104720927A (en) * | 2015-04-14 | 2015-06-24 | 南华大学 | Oil-smoke movable toxicant exposure device |
| CN105842408A (en) * | 2016-06-20 | 2016-08-10 | 国家电网公司 | SF6 (sulfur hexafluoride) biotoxicity testing device with video monitoring function |
| CN105853020A (en) * | 2016-05-24 | 2016-08-17 | 福建卫生职业技术学院 | Fine particle inhaling device for building animal injury model |
| CN107976513A (en) * | 2017-11-16 | 2018-05-01 | 刘振 | Test environmentally friendly experimental provision of the industrial waste gas to ozone deplation situation |
| CN109125866A (en) * | 2018-07-17 | 2019-01-04 | 西南交通大学 | A kind of smell drug delivery device and smell medication |
| CN110244004A (en) * | 2019-06-21 | 2019-09-17 | 河南牧业经济学院 | A kind of suction-type dynamic contamination device |
-
2011
- 2011-05-26 CN CN2011201785260U patent/CN202110166U/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935018B (en) * | 2012-11-13 | 2014-11-26 | 天津开发区合普工贸有限公司 | Animal experiment device for passive smoke produced by human smoking |
| CN102935018A (en) * | 2012-11-13 | 2013-02-20 | 天津开发区合普工贸有限公司 | Animal experiment device for passive smoke produced by human smoking |
| CN103385769A (en) * | 2013-08-19 | 2013-11-13 | 天津开发区合普工贸有限公司 | Integrated sectioning cavity multi-concentration gas contamination device |
| CN103385769B (en) * | 2013-08-19 | 2015-03-25 | 天津开发区合普工贸有限公司 | Integrated sectioning cavity multi-concentration gas contamination device |
| CN104586533A (en) * | 2014-08-01 | 2015-05-06 | 南通大学 | Filtered internal and external type carbon monoxide poisoning device being simple and easy in experiment operation |
| CN104127257A (en) * | 2014-08-01 | 2014-11-05 | 南通大学 | Filtered internal and external type carbon monoxide poisoning device |
| CN104127257B (en) * | 2014-08-01 | 2015-04-15 | 南通大学 | Filtered internal and external type carbon monoxide poisoning device |
| CN104586533B (en) * | 2014-08-01 | 2016-04-27 | 南通大学 | Simple, the filtered inside and outside formula carbon monoxide poisoning device of experimental implementation |
| CN104873296B (en) * | 2014-08-06 | 2016-09-28 | 南通大学 | Filtered vertical type carbon monoxide poisoning device |
| CN104116573A (en) * | 2014-08-06 | 2014-10-29 | 南通大学 | Up-and-down type filtered CO poisoning device |
| CN104116573B (en) * | 2014-08-06 | 2015-06-10 | 南通大学 | Up-and-down type filtered CO poisoning device |
| CN104873295B (en) * | 2014-08-06 | 2016-08-17 | 南通大学 | Filtered vertical type carbon monoxide poisoning device |
| CN104873295A (en) * | 2014-08-06 | 2015-09-02 | 南通大学 | Vertical type filtered carbon monoxide poisoning device capable of significantly improving working efficiency |
| CN104873296A (en) * | 2014-08-06 | 2015-09-02 | 南通大学 | Operating method for up-and-down type carbon monoxide poisoning device through filtration |
| CN104240574A (en) * | 2014-09-24 | 2014-12-24 | 南通大学 | Internal-external filtering type carbon monoxide poisoning testing device and testing method |
| CN104306081A (en) * | 2014-11-11 | 2015-01-28 | 黑龙江省中医药科学院 | Rodent respiratory system exposure contamination device |
| CN104720927A (en) * | 2015-04-14 | 2015-06-24 | 南华大学 | Oil-smoke movable toxicant exposure device |
| CN105853020A (en) * | 2016-05-24 | 2016-08-17 | 福建卫生职业技术学院 | Fine particle inhaling device for building animal injury model |
| CN105842408A (en) * | 2016-06-20 | 2016-08-10 | 国家电网公司 | SF6 (sulfur hexafluoride) biotoxicity testing device with video monitoring function |
| CN107976513A (en) * | 2017-11-16 | 2018-05-01 | 刘振 | Test environmentally friendly experimental provision of the industrial waste gas to ozone deplation situation |
| CN107976513B (en) * | 2017-11-16 | 2020-09-01 | 台州友驿科技有限公司 | Environmental protection experimental apparatus for testing influence condition of industrial waste gas on plants |
| CN109125866A (en) * | 2018-07-17 | 2019-01-04 | 西南交通大学 | A kind of smell drug delivery device and smell medication |
| CN110244004A (en) * | 2019-06-21 | 2019-09-17 | 河南牧业经济学院 | A kind of suction-type dynamic contamination device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20140526 |