CN113952803A - Automatic filtering system for toxic gas in laboratory - Google Patents
Automatic filtering system for toxic gas in laboratory Download PDFInfo
- Publication number
- CN113952803A CN113952803A CN202111311292.7A CN202111311292A CN113952803A CN 113952803 A CN113952803 A CN 113952803A CN 202111311292 A CN202111311292 A CN 202111311292A CN 113952803 A CN113952803 A CN 113952803A
- Authority
- CN
- China
- Prior art keywords
- ventilation
- air
- box
- air pipe
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 35
- 239000002341 toxic gas Substances 0.000 title claims abstract description 24
- 238000009423 ventilation Methods 0.000 claims abstract description 61
- 238000001179 sorption measurement Methods 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005494 condensation Effects 0.000 claims description 12
- 241000220317 Rosa Species 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 9
- 230000000740 bleeding effect Effects 0.000 abstract 2
- 238000001816 cooling Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- 230000002026 carminative effect Effects 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000006052 feed supplement Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
Images
Classifications
-
- 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
- B01D53/002—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 condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses an automatic filtering system for toxic gas in a laboratory, which comprises a ventilation box, a ventilation unit and a filtering unit, wherein the ventilation box is provided with a ventilation opening; the right end of the lower side of the ventilation box is provided with a filtering unit; the ventilation unit is including air pipe one, air pipe two, filter screen one, the fan of bleeding, the loose axle, L type baffle and movable assembly, air pipe one's one end is connected to the right-hand member of ventilation case, air pipe two's upper end is connected on air pipe one's lower extreme right side, diagonal angle is equipped with the filter screen one of putting to one side about the inner wall of ventilation case, the inside right-hand member of ventilation case is equipped with the fan of bleeding, air pipe one's upper end is located air pipe two air intake department and is equipped with vertical through-hole, the vertical swing joint loose axle of through-hole. According to the invention, air is filtered, and harmful gas is condensed and adsorbed at low temperature, so that the filtering efficiency is improved, and the quality of the filtered air is effectively improved.
Description
Technical Field
The invention relates to the technical field of air treatment, in particular to an automatic filtering system for toxic gas in a laboratory.
Background
Toxic gases (such as chlorine, carbon monoxide, phosgene and the like) or toxic gases (toxic organic matters or concentrated sulfuric acid volatile gases and the like) formed by reagent leakage and volatilization are often used in chemical or organic laboratories, once the toxic gases are leaked and released, even if personnel withdraw, the toxic gases are still discharged to the atmosphere to cause serious environmental pollution, and therefore the toxic gases leaked in the laboratories need to be timely extracted and effectively filtered to prevent the toxic gases from leaking to the atmosphere. Therefore, an automatic filtering system for toxic gas in a laboratory is provided.
Disclosure of Invention
In order to effectively solve the problems in the background art, the invention provides the following technical scheme: an automatic filtering system for toxic gas in a laboratory comprises a ventilation box, a ventilation unit and a filtering unit;
the right end of the lower side of the ventilation box is provided with a filtering unit;
ventilation unit is including air pipe one, air pipe two, filter screen one, air extraction fan, loose axle, L type baffle and movable assembly, air pipe one's one end is connected to the right-hand member of ventilation case, air pipe two's upper end is connected on air pipe one's lower extreme right side, diagonal angle is equipped with filter screen one of putting to one side about the inner wall of ventilation case, the inside right-hand member of ventilation case is equipped with the air extraction fan, the upper end of air pipe one is located air pipe two air intake department and is equipped with vertical through-hole, the vertical swing joint loose axle of through-hole, the upper end of L type baffle is connected to the lower extreme of loose axle, the tooth's socket has been seted up to one side of loose axle, and movable assembly is connected in the tooth's socket meshing.
The ventilation case is connected with air pipe one and air pipe two, when not having harmful gas, can use the movable assembly meshing to connect the loose axle, and control L type baffle blocks up air pipe two's air intake, makes the air after filter screen one filters only discharge through air pipe one, when needing to increase the efficiency of giving vent to anger, can open the extraction fan and increase the circulation of air.
Further, movable assembly is including ring, gear and motor, the periphery that air pipe one-to-one upper end is located the loose axle is equipped with the ring, ring active link loose axle, one side that air pipe one's upper end is located the loose axle is equipped with the motor, the one end of the output shaft connecting gear of motor, the input of motor is connected with external power source's output electricity through external control switch group. When the L-shaped baffle needs to be controlled to lift, the motor is started to drive the gear to be meshed with the tooth socket connected with the movable shaft, the L-shaped baffle is controlled to move up and down through the ring, the L-shaped baffle is located at the lowest end when the L-shaped baffle is not filtered, the L-shaped baffle rises to the topmost end when the toxic gas is filtered, the air inlet of the first ventilation pipeline is blocked, and the toxic gas enters the filtering unit through the second ventilation pipeline.
Further, the filter unit is including condensing box, L type adsorption plate, U type pipeline, L type pipeline, storage case and vacuum pump, the upper end of condensing box is connected to air pipe two's lower extreme, the left side at both ends is equipped with L type adsorption plate around the inner wall of condensing box, the both ends of U type pipeline are connected respectively to both ends downside and right side around the L type adsorption plate, and two U type pipeline axial pass L type adsorption plate inside and link to each other, the one end of L type pipeline is connected to one side of U type pipeline, and the front end and the rear end of storage case are connected respectively to the other end of two L type pipelines, and the storage incasement is stored with the liquid nitrogen, and the L type pipeline of front end passes through the discharge gate of vacuum pump connection storage case, the upper end of condensing box is equipped with the feed inlet in order to be used for liquid nitrogen reloading and feed supplement in the condensing box. Before the toxic gas got into through air pipe two and got into the condensing box, open the vacuum pump, carry the liquid nitrogen in the condensing box to U type pipeline by L type pipeline and carry out cooling to L type adsorption plate, the liquid nitrogen gets into the U type pipeline of the other end after the cooling, and get into in the condensing box by the L type pipeline of the other end, carry out the cooling of endless circulation cooling, the toxic gas is adsorbed in L type adsorption plate through low temperature, improve the filtering efficiency of poison gas, the remainder gets into in the remaining cavity of condensing box through L type adsorption plate.
Further, the filter unit is still including pipeline, rose box, air discharge fan and the filter screen two of giving vent to anger, the lower extreme of pipeline of giving vent to anger is connected on the upper end right side of condensation box, the other end of pipeline of giving vent to anger is equipped with the rose box, the inner wall middle part of rose box is equipped with the air discharge fan, the inner wall right-hand member of rose box is equipped with filter screen two. Air that the condensation adsorption finishes gets into the pipeline of giving vent to anger by the suction of air discharge fan in, further filter once more through filter screen two in the rose box and discharge, promote carminative quality.
Further, still include air-inlet grille, fixed block, dead lever and support bar, the lower extreme air inlet department of ventilation case is equipped with air-inlet grille, both ends center is equipped with a fixed block respectively around the ventilation case, the upper end of fixed block is equipped with vertical dead lever, air pipe one's lower extreme right side is equipped with the support bar, both sides are equipped with a dead lever respectively around the upper end of support bar. Debris get into the ventilation case and damage equipment when air-inlet grille prevents to exhaust, and fixed block and support bar are fixed in the wall body terminal surface with ventilation case and air pipe one through the dead lever, improve job stabilization nature.
Based on the technical scheme, the invention has the beneficial effects that:
1. the ventilation unit capable of changing the wind direction can meet different use scenes, and the utilization rate of the equipment is improved;
2. toxic gas is precipitated and collected in a low-temperature condensation mode, so that the air purification rate is increased, and the environment is protected;
3. according to the invention, air is filtered, and harmful gas is condensed and adsorbed at low temperature, so that the filtering efficiency is improved, and the quality of the filtered air is effectively improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention.
In the figure: 1. the air conditioner comprises a ventilation box, a ventilation unit, a ventilation pipe I, a ventilation pipe II, a filter screen I, a suction fan 24, a circular ring 25, a movable shaft 26, an L-shaped baffle plate 27, a gear 29, a motor 3, a filter unit 31, a condensation box 32, an L-shaped adsorption plate 33, a U-shaped pipeline 34, an L-shaped pipeline 35, a storage box 36, a vacuum pump 37, an air outlet pipeline 38, a filter box 39, an exhaust fan 310, a filter screen II, an air inlet grille 4, an air inlet grille 5, a fixing block 6, a fixing rod 7, a supporting strip 8 and a feeding hole 8.
Detailed Description
Referring to fig. 1-2, the system for automatically filtering out toxic gases in a laboratory according to the present embodiment includes a ventilation box 1, a ventilation unit 2, and a filtering unit 3; the right end of the lower side of the ventilation box 1 is provided with a filtering unit 3; still include air-inlet grille 4, fixed block 5, dead lever 6 and support bar 7, the lower extreme air inlet department of ventilation case 1 is equipped with air-inlet grille 4, and both ends center is equipped with a fixed block 5 respectively around ventilation case 1, and the upper end of fixed block 5 is equipped with vertical dead lever 6, and the lower extreme right side of a ventilation pipe 21 is equipped with support bar 7, and both sides are equipped with a dead lever 6 respectively around the upper end of support bar 7.
Wherein: the filtering unit 3 comprises a condensing box 31, an L-shaped adsorption plate 32, a U-shaped pipeline 33, an L-shaped pipeline 34, a storage box 35 and a vacuum pump 36, the lower end of a ventilation pipeline II 22 is connected with the upper end of the condensing box 31, the L-shaped adsorption plate 32 is arranged on the left side of the front end and the rear end of the inner wall of the condensing box 31, the lower sides and the right sides of the front end and the rear end of the L-shaped adsorption plate 32 are respectively connected with the two ends of the U-shaped pipeline 33, the two U-shaped pipelines 33 axially penetrate through the inside of the L-shaped adsorption plate 32 to be connected, one side of the U-shaped pipeline 33 is connected with one end of the L-shaped pipeline 34, the other ends of the two L-shaped pipelines 34 are respectively connected with the front end and the rear end of the storage box 35, liquid nitrogen is stored in the storage box 35, the L-shaped pipeline 34 at the front end is connected with the discharge hole of the storage box 35 through the vacuum pump 36, and the upper end of the condensing box 31 is provided with a feed port 8; the filtering unit 3 further comprises an air outlet pipeline 37, a filtering box 38, an exhaust fan 39 and a second filtering net 310, the right side of the upper end of the condensing box 31 is connected with the lower end of the air outlet pipeline 37, the filtering box 38 is arranged at the other end of the air outlet pipeline 37, the exhaust fan 39 is arranged in the middle of the inner wall of the filtering box 38, and the second filtering net 310 is arranged at the right end of the inner wall of the filtering box 38.
Wherein: ventilation unit 2 is including air pipe 21, air pipe two 22, filter screen 23, air extraction fan 24, loose axle 26, L type baffle 27 and movable assembly, the one end of air pipe 21 is connected to the right-hand member of ventilation case 1, the upper end of air pipe two 22 is connected on the lower extreme right side of air pipe 21, diagonal angle is equipped with filter screen 23 to one side about the inner wall of ventilation case 1, the inside right-hand member of ventilation case 1 is equipped with air extraction fan 24, the upper end of air pipe one 21 is located air pipe two 22 air intake department and is equipped with vertical through-hole directly upside, the vertical swing joint loose axle 26 of through-hole, the upper end of L type baffle 27 is connected to the lower extreme of loose axle 26, the tooth's socket has been seted up to one side of loose axle 26, the movable assembly is connected in the tooth's socket meshing.
Wherein: the movable assembly comprises a circular ring 25, a gear 28 and a motor 29, the circular ring 25 is arranged at the periphery of the movable shaft 26 at the upper end of the first ventilation pipeline 21, the circular ring 25 is movably connected with the movable shaft 26, the motor 29 is arranged at one side of the movable shaft 26 at the upper end of the first ventilation pipeline 21, the output shaft of the motor 29 is connected with one end of the gear 28, and the input end of the motor 29 is electrically connected with the output end of an external power supply through an external control switch group.
The working principle of the invention is as follows:
when the system is used, the ventilation box 1 and the ventilation pipeline I21 are fixed on the end face of the wall body through the fixing block 5 and the supporting strip 7 by using the fixing rod 6, so that the working stability is improved, and the air inlet grille 4 prevents sundries from entering the ventilation box 1 to damage equipment during air exhaust;
when no toxic and harmful gas exists, the motor 29 is started to drive the gear 28 to be meshed with the tooth grooves of the movable shaft 26, the L-shaped baffle 27 is controlled by the ring 25 to move up and down, the air inlet of the ventilation pipeline II 22 is blocked, air filtered by the filter screen I23 is discharged only through the ventilation pipeline I21, and when the air outlet efficiency needs to be increased, the air suction fan 24 can be started to increase air circulation;
when the poisonous and harmful gas needs to be filtered, the L-shaped baffle 27 is controlled to move to the topmost end, the air inlet of the ventilation pipeline II 22 is opened, the air inlet of the ventilation pipeline I21 is blocked, the poisonous and harmful gas enters the condensation box 31 through the ventilation pipeline II 22, the vacuum pump 36 is opened, liquid nitrogen in the condensation box 31 is conveyed to the U-shaped pipeline 33 through the L-shaped pipeline 34 to cool the L-shaped adsorption plate 32, the cooled liquid nitrogen enters the U-shaped pipeline 33 at the other end, and enters the condensing box 31 through the L-shaped pipeline 34 at the other end to carry out continuous circulating cooling and temperature reduction, when the liquid nitrogen in the condensing box 31 is insufficient, the material changing and feeding can be carried out through the feed inlet 8, the toxic and harmful gas is absorbed in the L-shaped adsorption plate 32 through the low-temperature harmful substances, the filtering efficiency of toxic and harmful gases is improved, and the residual air enters the residual cavity of the condensation box 31 through the L-shaped adsorption plate 32; the air that the condensation adsorbed finishes, in getting into air outlet pipe 37 by exhaust fan 39's suction, further carry out the secondary filter through filter screen two 310 in the rose box 38 and discharge, promote carminative quality, the environmental protection, whole filtering finishes.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. The utility model provides an automatic filtering system of laboratory toxic gas which characterized in that: comprises a ventilation box (1), a ventilation unit (2) and a filtering unit (3);
the right end of the lower side of the ventilation box (1) is provided with a filtering unit (3);
ventilation unit (2) including air pipe one (21), air pipe two (22), filter screen one (23), extract air fan (24), loose axle (26), L type baffle (27) and movable assembly, the one end of air pipe one (21) is connected to the right-hand member of ventilation case (1), the upper end of air pipe two (22) is connected on the lower extreme right side of air pipe one (21), diagonal angle is equipped with oblique filter screen one (23) about the inner wall of ventilation case (1), the inside right-hand member of ventilation case (1) is equipped with extract air fan (24), the upper end of air pipe one (21) is located air pipe two (22) air intake department and is just the upside is equipped with vertical through-hole, the vertical swing joint loose axle of through-hole (26), the upper end of L type baffle (27) is connected to the lower extreme of loose axle (26), the tooth's socket has been seted up to one side of loose axle (26), the tooth grooves are engaged with the movable components.
2. The automatic filtering system for laboratory toxic gas according to claim 1, wherein: the movable assembly is including ring (25), gear (28) and motor (29), the periphery that the upper end of ventilation pipe (21) one is located loose axle (26) is equipped with ring (25), ring (25) active link loose axle (26), one side that the upper end of ventilation pipe (21) is located loose axle (26) is equipped with motor (29), the output shaft of motor (29) is connected the one end of gear (28), the input of motor (29) is connected with external power source's output electricity through external control switch group.
3. The automatic filtering system for laboratory toxic gas according to claim 1, wherein: the filtering unit (3) comprises a condensation box (31), an L-shaped adsorption plate (32), U-shaped pipelines (33), L-shaped pipelines (34), a storage box (35) and a vacuum pump (36), the lower end of a second ventilation pipeline (22) is connected with the upper end of the condensation box (31), the L-shaped adsorption plate (32) is arranged on the left sides of the front end and the rear end of the inner wall of the condensation box (31), the lower sides and the right sides of the front end and the rear end of the L-shaped adsorption plate (32) are respectively connected with the two ends of the U-shaped pipeline (33), the two U-shaped pipelines (33) axially penetrate through the inside of the L-shaped adsorption plate (32) to be connected, one side of the U-shaped pipeline (33) is connected with one end of the L-shaped pipeline (34), the other ends of the two L-shaped pipelines (34) are respectively connected with the front end and the rear end of the storage box (35), liquid nitrogen is stored in the storage box (35), the L-shaped pipeline (34) at the front end is connected with the discharge hole of the storage box (35) through the vacuum pump (36), and a feed inlet (8) is formed in the upper end of the condensing box (31).
4. The automatic filtering system for laboratory toxic gas according to claim 3, wherein: the filter unit (3) is still including pipeline (37) of giving vent to anger, rose box (38), air discharge fan (39) and filter screen two (310), the lower extreme of pipeline (37) of giving vent to anger is connected on the upper end right side of condensation case (31), the other end of pipeline (37) of giving vent to anger is equipped with rose box (38), the inner wall middle part of rose box (38) is equipped with air discharge fan (39), the inner wall right-hand member of rose box (38) is equipped with filter screen two (310).
5. The automatic filtering system for laboratory toxic gas according to claim 1, wherein: still include feed inlet (8) and still include air-inlet grille (4), fixed block (5), dead lever (6) and support bar (7), the lower extreme air inlet department of ventilation case (1) is equipped with air-inlet grille (4), both ends center is equipped with one fixed block (5) respectively around ventilation case (1), the upper end of fixed block (5) is equipped with vertical dead lever (6), the lower extreme right side of air pipe (21) is equipped with support bar (7), both sides are equipped with a dead lever (6) respectively around the upper end of support bar (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111311292.7A CN113952803A (en) | 2021-11-08 | 2021-11-08 | Automatic filtering system for toxic gas in laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111311292.7A CN113952803A (en) | 2021-11-08 | 2021-11-08 | Automatic filtering system for toxic gas in laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113952803A true CN113952803A (en) | 2022-01-21 |
Family
ID=79469616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111311292.7A Pending CN113952803A (en) | 2021-11-08 | 2021-11-08 | Automatic filtering system for toxic gas in laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113952803A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATA323480A (en) * | 1980-06-19 | 1983-12-15 | Sonnleitner Engelbert Ing | ABSORPTION HEAT PUMP |
| CN103877827A (en) * | 2014-02-25 | 2014-06-25 | 浙江工业大学 | Organic waste gas adsorbing recovery device and process |
| CN105032089A (en) * | 2015-06-10 | 2015-11-11 | 宁波高新区金杉新能源科技有限公司 | Low-temperature tower type flue purification device and application method thereof |
| CN207342447U (en) * | 2017-10-26 | 2018-05-11 | 山西省环境科学研究院 | A kind of poisonous foul gas of coal chemical industry is along journey cleaning equipment |
| CN111351172A (en) * | 2020-03-16 | 2020-06-30 | 深圳市联合实验室工程装备有限公司 | Multifunctional gas defense ventilation equipment for laboratory |
| CN212790471U (en) * | 2020-06-16 | 2021-03-26 | 郑州人民医院(郑州人民医院医疗管理中心) | Laboratory air cleaner |
| CN214370717U (en) * | 2020-12-07 | 2021-10-08 | 山东中医药大学 | Laboratory air exhaust air quantity intelligent control device |
-
2021
- 2021-11-08 CN CN202111311292.7A patent/CN113952803A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATA323480A (en) * | 1980-06-19 | 1983-12-15 | Sonnleitner Engelbert Ing | ABSORPTION HEAT PUMP |
| CN103877827A (en) * | 2014-02-25 | 2014-06-25 | 浙江工业大学 | Organic waste gas adsorbing recovery device and process |
| CN105032089A (en) * | 2015-06-10 | 2015-11-11 | 宁波高新区金杉新能源科技有限公司 | Low-temperature tower type flue purification device and application method thereof |
| CN207342447U (en) * | 2017-10-26 | 2018-05-11 | 山西省环境科学研究院 | A kind of poisonous foul gas of coal chemical industry is along journey cleaning equipment |
| CN111351172A (en) * | 2020-03-16 | 2020-06-30 | 深圳市联合实验室工程装备有限公司 | Multifunctional gas defense ventilation equipment for laboratory |
| CN212790471U (en) * | 2020-06-16 | 2021-03-26 | 郑州人民医院(郑州人民医院医疗管理中心) | Laboratory air cleaner |
| CN214370717U (en) * | 2020-12-07 | 2021-10-08 | 山东中医药大学 | Laboratory air exhaust air quantity intelligent control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103486674A (en) | Wall-mounted fresh air purifier | |
| CN105665040A (en) | Air purification type reagent cabinet capable of uniformly distributing air | |
| CN113952803A (en) | Automatic filtering system for toxic gas in laboratory | |
| CN214106210U (en) | Zeolite adsorption renewable purification equipment | |
| CN214552073U (en) | Waste gas recovery device for environmental protection | |
| CN213043351U (en) | Switch board for construction | |
| CN212870075U (en) | Negative pressure laboratory capable of being linked with B2 biological safety cabinet to guarantee indoor pressure stabilization | |
| CN201423219Y (en) | Environment-friendly harmful gas filtering and purifying device | |
| CN213977308U (en) | Waste water purification system of red brick workshop | |
| CN211346443U (en) | High-temperature waste gas cooling treatment device | |
| CN210786766U (en) | VOCs organic waste gas dry-type adsorption treatment device | |
| CN205436562U (en) | Formula fume hood only that can be used to laboratory | |
| CN219615107U (en) | Explosion-proof industrial waste gas treatment RTO equipment | |
| CN217451405U (en) | Energy-saving fume chamber intelligence control system | |
| CN210332719U (en) | Clean weighing room | |
| CN216677364U (en) | Waste gas filtering device | |
| CN213408176U (en) | High-efficient filterable VOC atmosphere treatment integration equipment | |
| CN216080170U (en) | Filtering mechanism of fresh air purifying fan | |
| CN216825555U (en) | Waste gas purification environment-friendly device | |
| CN214617028U (en) | Roots blower filtering device convenient to maintain | |
| CN214582559U (en) | TO stove for organic waste gas treatment | |
| CN210624825U (en) | Fresh air device with heat exchange structure | |
| CN214581697U (en) | Workshop dust and gas treatment equipment | |
| CN211133561U (en) | Volatile punching shear oil waste gas treatment equipment | |
| CN105457963A (en) | Cleanable fume cupboard applied to lab or special place |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220121 |
|
| WD01 | Invention patent application deemed withdrawn after publication |