CN111467931A - Comprehensive waste gas treatment device for laboratory - Google Patents
Comprehensive waste gas treatment device for laboratory Download PDFInfo
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- CN111467931A CN111467931A CN202010429072.3A CN202010429072A CN111467931A CN 111467931 A CN111467931 A CN 111467931A CN 202010429072 A CN202010429072 A CN 202010429072A CN 111467931 A CN111467931 A CN 111467931A
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- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- 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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
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- 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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
- B01D53/1468—Removing hydrogen sulfide
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- 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
- B01D53/14—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 absorption
- B01D53/1487—Removing organic compounds
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- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- 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
- B01D53/26—Drying gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2045—Hydrochloric acid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
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- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a comprehensive waste gas treatment device for a laboratory, which comprises an air inlet, wherein the air inlet is connected with an inorganic spray chamber, a spray head is arranged in the inorganic spray chamber, the spray head is connected with a first water pump, the first water pump is connected with a first water tank, the first water tank is connected with a medicament adding electromagnetic interface, the inorganic spray chamber is connected with a first demisting chamber, the first demisting chamber is connected with an organic spray chamber, a spray head I is arranged in the organic spray chamber, the spray head I is connected with a second water pump, the second water pump is connected with a second water tank, the second water tank is connected with a medicament adding electromagnetic interface I, the organic spray chamber is connected with a second demisting chamber, the second demisting chamber is connected with an active carbon adsorption tower, the active carbon adsorption tower is connected with an air outlet, and a plurality of active carbon drawers are arranged in the active carbon adsorption tower. The device adopts a wet and dry combined treatment mode according to the complex and various characteristics of laboratory waste gas components and types, and has strong pertinence and obvious treatment effect.
Description
Technical Field
The invention relates to the technical field of waste gas treatment devices, in particular to a comprehensive waste gas treatment device for a laboratory.
Background
The laboratory is the place that laboratory personnel carry out experimental analysis and scientific research activity, can use various chemical reagent box medicines in the experimental analysis process, and poisonous, harmful gas often can be given off to these reagent and medicine, and various chemical reaction in the experimentation also can produce waste gas. The sources of the waste gas mainly comprise volatile matters of reagents and samples, intermediate products in the analysis process, leaked and evacuated standard gas, carrier gas and the like, and the main components of the waste gas are organic waste gas (benzene series, ethanol, carbon tetrachloride, methane, diethyl ether, aldehydes and the like) and inorganic waste gas (hydrogen chloride, hydrogen bromide, chlorine, ammonia and the like). In recent years, pollution of laboratories is becoming more serious, wherein the problem of exhaust pollution is getting more attention, and if the pollution is not treated or not treated properly, the pollution not only affects the working environment and the health of experimenters, but also affects the living environment of surrounding residents seriously.
The existing laboratory waste gas prevention and control technology is relatively lack, inorganic waste gas in a laboratory is mainly treated by a water mist or water curtain capture technology, an organic waste gas purification process mainly comprises an activated carbon adsorption method and a solvent absorption method, and the existing common treatment method comprises the steps of exhausting the inorganic waste gas to the outdoor through a fume hood, a ventilating fan and the like, diluting the inorganic waste gas with air and then discharging the diluted organic waste gas. The treatment is an effective method for ensuring the indoor air quality and protecting the health and safety of laboratory personnel, but causes pollution to the atmosphere around the experimental area and directly influences the quality of the environmental atmosphere. And the fume hood usually occupies a large area, and some experimental equipment cannot be put into the fume hood, so that the emission of toxic and harmful gases is difficult. However, most of the existing toxic and harmful gas adsorption devices are large-scale devices, cannot be put into laboratories for factories, are high in equipment cost, and are not capable of being equipped with a large amount of hardware in every school.
Disclosure of Invention
The invention aims to provide a comprehensive laboratory waste gas treatment device to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: a laboratory comprehensive waste gas treatment device comprises an air inlet, wherein the air inlet is connected with an inorganic spray room, spray heads are arranged on the upper portion of the inorganic spray room and on the periphery of the inorganic spray room, the spray heads are connected with a first water pump through spray pipes, the bottom of the first water pump is positioned inside a first water tank, the part of the first water tank is positioned at the bottom of the inorganic spray room, the first water tank is connected with a chemical electromagnetic interface through a pipeline, the chemical electromagnetic interface is positioned at the top of the first water tank, the inorganic spray room is connected with a first demisting room through an air pipeline, the first demisting room is connected with an organic spray room through an air pipeline, the upper portion and the periphery of the organic spray room are respectively provided with a spray head I, the spray heads I are connected with a second water pump through the spray pipes I, the bottom of the second water pump is positioned inside a second water tank, and the part of the second water tank is positioned at, the second water tank passes through pipe connection and adds medicament electromagnetism interface I, the organic spray room passes through air pipe connection second defogging room, the second defogging room is through taking over the connection active carbon adsorption tower, the air outlet is connected to the active carbon adsorption tower, the inside a plurality of active carbon drawers that are equipped with of active carbon adsorption tower, the active carbon drawer can follow the inside change of taking out of active carbon adsorption tower, central controller is connected to first water pump and second water pump, central controller installs in active carbon adsorption tower upper portion, the central controller downside is the active carbon drawer change mouth, central controller connection control panel.
Preferably, inorganic spray room inside is equipped with level sensor, be equipped with level sensor I in the organic spray room, level sensor and level sensor I connect central controller.
Preferably, first water tank pipe connection automatic water supply pipeline solenoid valve, inside liquid level inductor and the PH inductor of being equipped with, central controller is connected to liquid level inductor and PH inductor, the second water tank is equipped with automatic water supply pipeline solenoid valve I, and inside liquid level inductor I and the PH inductor I of being equipped with, central controller is connected to liquid level inductor I and PH inductor I, central controller is connected to automatic water supply pipeline solenoid valve and automatic water supply pipeline solenoid valve I.
Preferably, first water pump and second water pump all are equipped with two, inorganic spray room and organic spray room lateral wall all are equipped with the observation window, and bottom pipe connection overflow blowdown solenoid valve and overflow blowdown solenoid valve I, overflow blowdown solenoid valve and I connection central controller of overflow blowdown solenoid valve.
Preferably, an air volume sensor is arranged at the air inlet and connected with the central controller.
Preferably, the activated carbon drawer is a high iodine value activated carbon drawer.
The device has the advantages that the device adopts a grading treatment mode, adopts a wet and dry combined treatment mode according to the characteristics of complex and various laboratory waste gas components and types, has strong pertinence and obvious treatment effect, ensures standard emission, and absorbs the inorganic waste gas absorption liquid absorbing HC L and HNO through the absorption liquid prepared by two levels in the wet treatment section3、H2S and other inorganic pollutants and organic waste gas absorption liquid absorb organic pollutants, and the dry type treatment section adopts high-iodine-value activated carbon to carry out high-efficiency adsorption treatment on the pollutants.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention.
In the figure: 1-an air inlet, 2-an inorganic spray chamber, 3-a spray head, 4-a spray pipeline, 5-a first water pump, 6-a first water tank, 7-a medicament adding electromagnetic interface, 8-a first demisting chamber, 9-an organic spray chamber, 10-a spray head I, 11-a spray pipeline I, 12-a second water pump, 13-a second water tank, 14-a medicament adding electromagnetic interface I, 15-a second demisting chamber, 16-an active carbon adsorption tower, 17-an air outlet, 18-an active carbon drawer, 19-a central controller, 20-an active carbon drawer replacement port, 21-a control panel, 22-a liquid level sensor, 23-a liquid level sensor I, 24-an automatic water supplementing pipeline electromagnetic valve, 25-a liquid level sensor and 26-a PH sensor, 27-automatic water supply pipeline solenoid valves I, 28-liquid level sensors I, 29-PH sensors I, 30-observation windows, 31-overflow pollution discharge solenoid valves, 32-overflow pollution discharge solenoid valves I, 33-air volume sensors.
Detailed Description
In the description of the present invention, it should be noted that unless otherwise specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.
Example 1
As shown in fig. 1 and 2, the laboratory comprehensive waste gas treatment device comprises an air inlet 1, wherein the air inlet 1 is connected with an inorganic spray room 2, the upper part of the inorganic spray room 2 and all around are provided with spray heads 3, the spray heads 3 are connected with a first water pump 5 through spray pipes 4, the bottom of the first water pump 5 is positioned inside a first water tank 6 and used for extracting liquid inside the first water tank 6, the part of the first water tank 6 is positioned at the bottom of the inorganic spray room 2, the first water tank 6 is connected with a medicament adding electromagnetic interface 7 through a pipe, the medicament adding electromagnetic interface 7 is positioned at the top of the first water tank 6, the inorganic spray room 2 is connected with a first demisting room 8 through a ventilation pipe, a water absorbing material is arranged in the first demisting room 8 and is connected with an organic spray room 9 through the ventilation pipe, the upper part and all around of the organic spray room 9 are provided with spray heads i 10, the spray header I10 is connected with a second water pump 12 through a spray pipeline I11, the bottom of the second water pump 12 is positioned inside a second water tank 13, the part of the second water tank 13 is positioned at the bottom of an organic spray chamber 9, the second water tank 13 is connected with a medicament electromagnetic interface I14 through a pipeline, the organic spray chamber 9 is connected with a second demisting chamber 15 through a ventilation pipeline, a water absorbing material is arranged in the second demisting chamber 15 and is connected with an active carbon adsorption tower 16 through a connecting pipe, the active carbon adsorption tower 16 is connected with an air outlet 17, a plurality of active carbon drawers 18 are arranged inside the active carbon adsorption tower 16, the active carbon drawers 18 can be extracted from the inside of the active carbon adsorption tower 16 for replacement, the first water pump 5 and the second water pump 12 are connected with a central controller 19, the central controller 19 is installed on the upper part of the active carbon adsorption tower 16, and the lower side of the central controller 19 is provided with an active carbon drawer replacement port 20, the central controller 19 is connected to a control panel 21.
Example 2
As shown in fig. 1 and 2, the laboratory comprehensive waste gas treatment device comprises an air inlet 1, wherein the air inlet 1 is connected with an inorganic spray room 2, the upper part of the inorganic spray room 2 and all around are provided with spray heads 3, the spray heads 3 are connected with a first water pump 5 through spray pipes 4, the bottom of the first water pump 5 is positioned inside a first water tank 6 and used for extracting liquid inside the first water tank 6, the part of the first water tank 6 is positioned at the bottom of the inorganic spray room 2, the first water tank 6 is connected with a medicament adding electromagnetic interface 7 through a pipe, the medicament adding electromagnetic interface 7 is positioned at the top of the first water tank 6, the inorganic spray room 2 is connected with a first demisting room 8 through a ventilation pipe, a water absorbing material is arranged in the first demisting room 8 and is connected with an organic spray room 9 through the ventilation pipe, the upper part and all around of the organic spray room 9 are provided with spray heads i 10, the spray header I10 is connected with a second water pump 12 through a spray pipeline I11, the bottom of the second water pump 12 is positioned inside a second water tank 13, the part of the second water tank 13 is positioned at the bottom of an organic spray chamber 9, the second water tank 13 is connected with a medicament electromagnetic interface I14 through a pipeline, the organic spray chamber 9 is connected with a second demisting chamber 15 through a ventilation pipeline, a water absorbing material is arranged in the second demisting chamber 15 and is connected with an active carbon adsorption tower 16 through a connecting pipe, the active carbon adsorption tower 16 is connected with an air outlet 17, a plurality of active carbon drawers 18 are arranged inside the active carbon adsorption tower 16, the active carbon drawers 18 can be extracted from the inside of the active carbon adsorption tower 16 for replacement, the first water pump 5 and the second water pump 12 are connected with a central controller 19, the central controller 19 is installed on the upper part of the active carbon adsorption tower 16, and the lower side of the central controller 19 is provided with an active carbon drawer replacement port 20, the central controller 19 is connected to a control panel 21.
Preferably, inorganic shower room 2 is inside to be equipped with level sensor 22, be equipped with level sensor I23 in the organic shower room 9, level sensor 22 and level sensor I23 connect central controller 19, can master the solution content in inorganic shower room 2 and the organic shower room 9 through level sensor 22 and level sensor I23, reach the setting value when the solution and discharge.
Preferably, the first water tank 6 is connected with an automatic water replenishing pipeline electromagnetic valve 24 through a pipeline, a liquid level sensor 25 and a PH sensor 26 are arranged in the first water tank, the liquid level sensor 25 and the PH sensor 26 are connected with a central controller 19, the second water tank 13 is provided with an automatic water replenishing pipeline electromagnetic valve I27, a liquid level sensor I28 and a PH sensor I29 are arranged in the second water tank, the liquid level sensor I28 and the PH sensor I29 are connected with the central controller 19, the automatic water replenishing pipeline electromagnetic valve 24 and the automatic water replenishing pipeline electromagnetic valve I27 are connected with the central controller 19, the liquid level and the solution PH value of the first water tank 6 can be mastered through the liquid level sensor 25 and the PH sensor 26, and when the liquid level and the PH value of the solution do not reach set values, the automatic water replenishing pipeline electromagnetic valve 24 and the medicament electromagnetic interface 7 can be controlled to be opened through the central controller 19 so as to replenish moisture and add medicament, when the liquid level of the first water tank 6 and the PH value of the solution reach set values, the central controller 19 controls the automatic water replenishing pipeline electromagnetic valve 24 and the medicament electromagnetic interface 7 to be closed; similarly, the second water tank 13 controls the automatic water replenishing pipeline electromagnetic valve I27 and the medicament adding electromagnetic interface I14 through the central controller 19 to adjust the liquid level and the solution PH value of the second water tank 13.
Preferably, first water pump 5 and second water pump 12 all are equipped with two, inorganic shower 2 and organic shower 9 lateral wall all are equipped with observation window 30, and bottom pipe connects overflow blowdown solenoid valve 31 and overflow blowdown solenoid valve I32, central controller 19 is connected to overflow blowdown solenoid valve 31 and overflow blowdown solenoid valve I32, observation window 30 is used for observing the condition of spraying of inorganic shower 2 and organic shower 9, and when inorganic shower 2 and the inside solution of organic shower 9 reached the setting value, discharges through central controller 19 control overflow blowdown solenoid valve 31 and overflow blowdown solenoid valve I32.
Preferably, an air volume sensor 33 is arranged at the air inlet 1, and the air volume sensor 33 is connected with the central controller 19.
Preferably, the charcoal drawer 18 is a high iodine value charcoal drawer.
The technological process and the working principle of the invention are that laboratory waste gas enters an inorganic spray chamber 2 through an air inlet 1, an air quantity sensor 33 senses the air inlet quantity, when the air inlet quantity is small, a central controller 19 controls a single first water pump 5 and a single second water pump 12 to be started, when the air inlet quantity is large, the central controller 19 controls two first water pumps 5 and two second water pumps 12 to be started simultaneously, the first water pump 5 extracts liquid medicine from a first water tank 6, and sprays the liquid medicine into the inorganic spray chamber 2 through a spray pipeline 4 and a spray header 3, inorganic pollutants such as HC L, HNO3 and H2S in the waste gas are eliminated, the absorbed waste gas and partial water vapor enter a first demisting chamber 8 together, the first demisting chamber 8 absorbs water in the waste gas, dried waste gas enters an organic spray chamber 9, the second water pump 12 extracts the liquid medicine from a second water tank 13, the liquid medicine is sprayed into the organic spray chamber 9 through a spray pipeline I11 and a spray header I10, the organic pollutant in the waste gas is eliminated, the dried waste gas and the residual water enters a second water tank 13, and the dried waste gas is finally absorbed by an active carbon absorption tower, and the waste gas is absorbed by a drying tower 16.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a waste gas treatment device is synthesized in laboratory, includes the air intake, its characterized in that: the air inlet is connected with an inorganic spray room, the upper part and the periphery of the inorganic spray room are provided with spray heads, the spray heads are connected with a first water pump through a spray pipeline, the bottom of the first water pump is positioned in a first water tank, the part of the first water tank is positioned at the bottom of the inorganic spray room, the first water tank is connected with a medicament electromagnetic interface through a pipeline, the medicament electromagnetic interface is positioned at the top of the first water tank, the inorganic spray room is connected with a first demisting room through a ventilation pipeline, the first demisting room is connected with an organic spray room through a ventilation pipeline, the upper part and the periphery of the organic spray room are provided with spray heads I, the spray heads I are connected with a second water pump through a spray pipeline I, the bottom of the second water pump is positioned in a second water tank, the part of the second water tank is positioned at the bottom of the organic spray room, the second water tank is connected with a medicament electromagnetic interface I through a, organic spray room passes through air pipe connection second defogging room, the second defogging room is through taking over the connection active carbon adsorption tower, the air outlet is connected to the active carbon adsorption tower, the inside a plurality of active carbon drawers that are equipped with of active carbon adsorption tower, the active carbon drawer can follow the inside extraction of active carbon adsorption tower from changing, central controller is connected to first water pump and second water pump, central controller installs in active carbon adsorption tower upper portion, the central controller downside is the active carbon drawer change mouth, central controller connection control panel.
2. The integrated laboratory exhaust treatment device according to claim 1, wherein: the inorganic spray room is internally provided with a liquid level sensor, the organic spray room is internally provided with a liquid level sensor I, and the liquid level sensor I are connected with a central controller.
3. The integrated laboratory exhaust treatment device according to claim 2, wherein: first water tank pipe connection automatic water supply pipeline solenoid valve, inside liquid level inductor and the PH inductor of being equipped with, central controller is connected to liquid level inductor and PH inductor, the second water tank is equipped with automatic water supply pipeline solenoid valve I, and inside liquid level inductor I and the PH inductor I of being equipped with, central controller is connected to liquid level inductor I and PH inductor I, central controller is connected to automatic water supply pipeline solenoid valve and automatic water supply pipeline solenoid valve I.
4. The integrated laboratory exhaust treatment device according to claim 3, wherein: first water pump and second water pump all are equipped with two, inorganic spray room and organic spray room lateral wall all are equipped with the observation window, and bottom pipe connection overflow blowdown solenoid valve and overflow blowdown solenoid valve I, central controller is connected to overflow blowdown solenoid valve and overflow blowdown solenoid valve I.
5. The integrated laboratory exhaust gas treatment device according to any one of claims 1 to 4, wherein: and an air volume sensor is arranged at the air inlet and is connected with a central controller.
6. The integrated laboratory exhaust gas treatment device according to any one of claims 1 to 4, wherein: the active carbon drawer is a high iodine value active carbon drawer.
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CN202010429072.3A CN111467931A (en) | 2020-05-20 | 2020-05-20 | Comprehensive waste gas treatment device for laboratory |
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CN202010429072.3A CN111467931A (en) | 2020-05-20 | 2020-05-20 | Comprehensive waste gas treatment device for laboratory |
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Cited By (1)
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CN113813782A (en) * | 2021-09-29 | 2021-12-21 | 江苏科仕达实验室环保科技有限公司 | Complex component laboratory waste gas purification treatment integrated process and control method |
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Cited By (1)
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CN113813782A (en) * | 2021-09-29 | 2021-12-21 | 江苏科仕达实验室环保科技有限公司 | Complex component laboratory waste gas purification treatment integrated process and control method |
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