CN111167535A - Volatile gas automatic purification experiment table - Google Patents
Volatile gas automatic purification experiment table Download PDFInfo
- Publication number
- CN111167535A CN111167535A CN201811347266.8A CN201811347266A CN111167535A CN 111167535 A CN111167535 A CN 111167535A CN 201811347266 A CN201811347266 A CN 201811347266A CN 111167535 A CN111167535 A CN 111167535A
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- Prior art keywords
- adsorption
- gas
- experiment table
- fission
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- 238000002474 experimental method Methods 0.000 title claims abstract description 38
- 238000000746 purification Methods 0.000 title claims abstract description 29
- 230000004992 fission Effects 0.000 claims abstract description 26
- 238000001179 sorption measurement Methods 0.000 claims description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 210000000078 claw Anatomy 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 231100001261 hazardous Toxicity 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/02—Laboratory benches or tables; Fittings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
- B01D53/323—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
Abstract
The invention discloses an automatic volatile gas purification experiment table which comprises an experiment table main body and a low-temperature plasma purification system, wherein the low-temperature plasma purification system comprises a fission furnace and an energy source electrode, a fission cavity is formed in the fission furnace, the energy source electrode is arranged in the fission cavity, the fission furnace is provided with an air inlet and an air outlet, the air inlet is communicated with the interior of the experiment table main body, and the air outlet is connected with an air exhaust fan. Volatile harmful gas is guided into the fission furnace from the experiment table main body through the air inlet and enters the fission cavity, sufficient energy is provided through the energy source, the harmful gas is differentiated and fissured into plasma, the plasma is exhausted into the atmosphere through the air outlet, new and harmless substances are generated and become clean gas, and pollution of the volatile harmful gas to the environment is avoided.
Description
Technical Field
The invention relates to the technical field of environmental air treatment, in particular to an automatic volatile gas purification experiment table.
Background
The structure of the existing laboratory bench is shown in figure 1, which mainly comprises a closed cavity 1 ' made of metal, one side of the closed cavity 1 ' is provided with two transparent glass doors 2 ' which can be opened, the inner bottom of the closed cavity 1 ' is an operation table 3 ', and the top of the closed cavity 1 ' is provided with a high-speed exhaust motor 4 '. When carrying out the experiment, place the chemical reagent and carry out the experiment on the operation panel, because the used chemical reagent is the hazardous and noxious liquid reagent for the overwhelming majority when carrying out the chemical experiment, can produce hazardous and noxious volatile substance in the in-process of chemical experiment, threaten to operating personnel's safety, in order to protect operating personnel, must open high-speed fan when the experiment, discharge harmful gas into the atmosphere, but the operation is harmful to the environment like this.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic volatile gas purification experiment table, which can solve the problem that the experiment table in the prior art discharges volatile toxic and harmful gas to the environment in the using process and pollutes the environment.
In order to solve the problems, the invention adopts the following technical scheme:
the invention provides an automatic volatile gas purification experiment table which comprises an experiment table main body and a low-temperature plasma purification system, wherein the low-temperature plasma purification system comprises a fission furnace and an energy source electrode, a fission cavity is formed in the fission furnace, the energy source electrode is arranged in the fission cavity, the fission furnace is provided with an air inlet and an air outlet, the air inlet is communicated with the interior of the experiment table main body, and the air outlet is connected with an exhaust fan.
As the preferred technical scheme, still include concentration control mechanism and gaseous absorption unit, gaseous absorption unit includes gaseous absorption box and absorption fan, gaseous absorption box with the inside intercommunication of laboratory bench main part, the absorption fan set up in gaseous absorption box with between the laboratory bench main part, concentration control mechanism connect exhaust fan with the absorption fan.
As a preferred technical solution, the concentration control mechanism includes a gas concentration detector and a controller, the gas concentration detector is disposed in the experiment table main body, the gas concentration detector is electrically connected to the controller, and the controller is electrically connected to the exhaust fan and the adsorption fan.
As a preferred technical scheme, an adsorption filler is arranged in the gas adsorption box, and the adsorption filler is activated carbon.
According to a preferable technical scheme, the experiment table main body comprises a closed cavity, two openable transparent glass doors are arranged on one side of the closed cavity, and an operation table is arranged at the inner bottom of the closed cavity.
As a preferable technical solution, the power of the adsorption fan is larger than the power of the exhaust fan.
The invention uses physical low-temperature plasma to bombard organic volatile gas in a special environment, so that the molecules of the organic volatile gas are split into smaller ions, and when the ions enter the atmosphere again, chemical reaction is immediately carried out to generate new harmless substances. Taking the volatile gas of formaldehyde as an example: CH (CH)2O+O2＝CO2+H2O。
Volatile harmful gas is introduced into the fission furnace from the experiment table main body through the air inlet and enters the fission cavity, sufficient energy is provided by the energy source, the harmful gas is differentiated and fissured into plasma, the plasma is exhausted into the atmosphere through the air outlet, new and harmless substances are generated and become clean gas, and pollution of the volatile harmful gas to the environment is avoided.
Drawings
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
FIG. 1 is a schematic structural diagram of a background art experiment table;
FIG. 2 is a schematic structural diagram of an automatic volatile gas purification experiment table according to the present invention;
FIG. 3 is a schematic structural diagram of a low-temperature plasma purification system in an automatic volatile gas purification laboratory bench according to the present invention;
FIG. 4 is a control schematic diagram of the automatic volatile gas purification experiment table of the present invention;
wherein the reference numerals are specified as follows:
background art: a closed cavity 1 ', a transparent glass door 2', an operating platform 3 'and an exhaust motor 4'.
The specific implementation mode is as follows: the device comprises a closed cavity 1, a transparent glass door 2, an operation table 3, an exhaust motor 4, a low-temperature plasma purification system 5, a fission furnace 6, a fission cavity 7, an energy source 8, a gas adsorption box 9, an adsorption fan 10, an adsorption unit 11 and a concentration control mechanism 12.
Detailed Description
As shown in fig. 1, an automatic volatile gas purification experiment table includes an experiment table main body, a low-temperature plasma purification system 5, a gas adsorption unit 11, and a concentration control mechanism 12. The experiment table main body comprises a closed cavity 1, two openable transparent glass doors 2 are arranged on one side of the closed cavity 1, and an operation table 3 is arranged at the inner bottom of the closed cavity 1.
As shown in fig. 2, the low-temperature plasma purification system 5 comprises a fission furnace 6 and an energy source 8, a fission cavity 7 is formed in the fission furnace 6, the energy source 8 is arranged in the fission cavity 7, the fission furnace 6 is provided with an air inlet and an air outlet, the air inlet is communicated with the inside of the experiment table main body, and the air outlet is connected with an air exhaust fan.
As shown in fig. 3, the gas adsorption unit 11 includes a gas adsorption box 9 and an adsorption fan 10, the gas adsorption box 9 is communicated with the inside of the experiment table main body, the adsorption fan 10 is disposed between the gas adsorption box 9 and the experiment table main body, an adsorption filler is disposed in the gas adsorption box 9, and the adsorption filler is activated carbon. The concentration control mechanism 12 is connected to the exhaust fan and the adsorption fan 10. Wherein, concentration control mechanism 12 includes gas concentration detector and controller, and gas concentration detector sets up in the laboratory bench main part, and gas concentration detector chooses for use the bi-directional detector, and gas concentration detector electric connection controller, controller electric connection exhaust fan and adsorption fan 10.
Specifically, the energy source pole 8 comprises a center shaft, 2 fixing claws, positioning claws and gear pieces, wherein the fixing claws are arranged at two ends of the center shaft and used for fixing the center shaft in the cylinder pole, the positioning claws are arranged at positions, close to two ends of the center shaft, of the center shaft and used for fixing the center shaft in a neutral position, and the gear pieces are uniformly arranged on the center shaft in a string mode.
Specifically, the locating pawl includes position sleeve and claw spare, and the position sleeve is fixed in the centraxonial outside, and the claw spare sets up to 3, and claw spare axisymmetric sets up in the outside of position sleeve. One end of the claw piece, which is far away from the positioning sleeve, is provided with an arc-shaped structure, and the diameter of the arc-shaped structure can be 5-200 mm. The claw piece sets up to 3, has improved the positioning stability of positioning pawl, has avoided the axis to take place to incline and influence the gear and discharge. The arc-shaped structure ensures the contact stability of the claw piece and the cylinder pole and avoids the claw piece from sliding.
Specifically, the tooth profile of the gear piece is circular arc, and the central angle corresponding to the circular arc is 3 degrees. When the tooth form is triangular, because the vertex of the triangle is a discharge point, after working for a period of time, the gear piece is worn, and the service life of the gear piece is short; the tooth profile is set to be circular arc, the discharge point is the highest point of the circular arc, and after the gear piece is used for a period of time and is worn, the discharge point is changed into two circular arc-shaped end points, so that the service life of the gear piece is prolonged.
As shown in fig. 4, when the concentration of the volatile gas in the main body of the experiment table is within a set safety value (less than two-thirds of the flash point), the volatile gas is purified by the low-temperature plasma purification system and then is discharged; if the gas is excessive or equal to the set value occasionally, the low-temperature plasma purification system stops purification immediately, and the adsorption fan 10 is started to adsorb and store excessive volatile gas in the gas adsorption box 9, so that the gas quantity in the experiment table main body is reduced, and the whole process only needs about 3 seconds. After the whole experiment is finished, the adsorption fan 10 can be automatically opened and then automatically purified for about 10min, so that the volatile gas which is not purified in the experiment table main body is eliminated, and the volatile harmful gas is prevented from exploding when encountering open fire.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (6)
1. The automatic volatile gas purification experiment table is characterized by comprising an experiment table main body and a low-temperature plasma purification system, wherein the low-temperature plasma purification system comprises a fission furnace and an energy source electrode, a fission cavity is formed in the fission furnace, the energy source electrode is arranged in the fission cavity, the fission furnace is provided with an air inlet and an air outlet, the air inlet is communicated with the inside of the experiment table main body, and the air outlet is connected with an exhaust fan.
2. An automatic volatile gas purification laboratory bench as claimed in claim 1, wherein: still include concentration control mechanism and gas adsorption unit, gas adsorption unit includes gas adsorption box and adsorption fan, gas adsorption box with the inside intercommunication of laboratory bench main part, adsorption fan set up in gas adsorption box with between the laboratory bench main part, concentration control mechanism connects exhaust fan with adsorption fan.
3. An automatic volatile gas purification laboratory bench as claimed in claim 2, wherein: the concentration control mechanism comprises a gas concentration detector and a controller, the gas concentration detector is arranged in the experiment table main body and electrically connected with the controller, and the controller is electrically connected with the exhaust fan and the adsorption fan.
4. An automatic volatile gas purification laboratory bench as claimed in claim 2, wherein: and an adsorption filler is arranged in the gas adsorption box, and the adsorption filler is activated carbon.
5. An automatic volatile gas purification laboratory bench as claimed in claim 1, wherein: the experiment table main body comprises a closed cavity, two openable transparent glass doors are arranged on one side of the closed cavity, and an operation table is arranged at the inner bottom of the closed cavity.
6. An automatic volatile gas purification laboratory bench as claimed in claim 2, wherein: the power of the adsorption fan is larger than that of the exhaust fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811347266.8A CN111167535A (en) | 2018-11-13 | 2018-11-13 | Volatile gas automatic purification experiment table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811347266.8A CN111167535A (en) | 2018-11-13 | 2018-11-13 | Volatile gas automatic purification experiment table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111167535A true CN111167535A (en) | 2020-05-19 |
Family
ID=70648635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811347266.8A Pending CN111167535A (en) | 2018-11-13 | 2018-11-13 | Volatile gas automatic purification experiment table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111167535A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005230627A (en) * | 2004-02-17 | 2005-09-02 | National Institute Of Advanced Industrial & Technology | Method for purifying exhaust gas using low-temperature plasma and its purifying apparatus |
| CN203724958U (en) * | 2013-12-29 | 2014-07-23 | 孙金魁 | System for processing volatile gas at periphery of toll station |
| CN204933504U (en) * | 2015-06-29 | 2016-01-06 | 杭州美澳生物技术有限公司 | A kind of clean work station |
| CN205965933U (en) * | 2016-08-22 | 2017-02-22 | 无锡菲兰爱尔空气质量技术有限公司 | Sample platform of drawing materials |
| CN207026079U (en) * | 2017-07-03 | 2018-02-23 | 南京林业大学 | A kind of plasma fume hood experimental provision |
| CN207995484U (en) * | 2018-03-02 | 2018-10-19 | 浙江大维高新技术股份有限公司 | A kind of low temperature plasma corona discharge polar curve |
-
2018
- 2018-11-13 CN CN201811347266.8A patent/CN111167535A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005230627A (en) * | 2004-02-17 | 2005-09-02 | National Institute Of Advanced Industrial & Technology | Method for purifying exhaust gas using low-temperature plasma and its purifying apparatus |
| CN203724958U (en) * | 2013-12-29 | 2014-07-23 | 孙金魁 | System for processing volatile gas at periphery of toll station |
| CN204933504U (en) * | 2015-06-29 | 2016-01-06 | 杭州美澳生物技术有限公司 | A kind of clean work station |
| CN205965933U (en) * | 2016-08-22 | 2017-02-22 | 无锡菲兰爱尔空气质量技术有限公司 | Sample platform of drawing materials |
| CN207026079U (en) * | 2017-07-03 | 2018-02-23 | 南京林业大学 | A kind of plasma fume hood experimental provision |
| CN207995484U (en) * | 2018-03-02 | 2018-10-19 | 浙江大维高新技术股份有限公司 | A kind of low temperature plasma corona discharge polar curve |
Non-Patent Citations (1)
| Title |
|---|
| 上海市环境保护工业行业协会: "《工业大气污染防治技术及应用》", 30 November 2016 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200519 |