CN117884206A - Ventilation device for experiment operation table - Google Patents
Ventilation device for experiment operation table Download PDFInfo
- Publication number
- CN117884206A CN117884206A CN202410276672.9A CN202410276672A CN117884206A CN 117884206 A CN117884206 A CN 117884206A CN 202410276672 A CN202410276672 A CN 202410276672A CN 117884206 A CN117884206 A CN 117884206A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- pipe
- air
- cavity
- box
- 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.)
- Granted
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 25
- 238000002474 experimental method Methods 0.000 title claims description 17
- 238000005406 washing Methods 0.000 claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000010521 absorption reaction Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000005086 pumping Methods 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 35
- 239000012670 alkaline solution Substances 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 239000003651 drinking water Substances 0.000 claims description 4
- 235000020188 drinking water Nutrition 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 210000005056 cell body Anatomy 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 39
- 239000007921 spray Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses an experimental operation table ventilation device, which comprises an operation table and a wall body of a laboratory, wherein the operation table is arranged back to the wall body, and the experimental operation table ventilation device further comprises a water washing mechanism, an air draft mechanism, a water pumping mechanism, an air duct, an absorption mechanism and a negative pressure filtering mechanism.
Description
Technical Field
The invention relates to the technical field of ventilation devices, in particular to an experimental operation table ventilation device.
Background
The experiment operation table is used for carrying out chemical or physical experiments, is not necessary for carrying out chemical or physical experiments, can generate a large amount of toxic and harmful gas in the process of carrying out physical or chemical experiments, and can cause environmental pollution in a laboratory if the position of the experiment table is not ventilated, so that the body of an experimenter is injured.
The existing ventilation equipment is generally a simple ventilator, and toxic gas in the room is directly discharged to the outside to cause pollution to the outdoor environment. Although there are also some laboratory ventilation devices, such as the one described in patent application No.: 202222370790.5 discloses a ventilation device of an experiment operation table, which purifies gas through an active carbon screen plate and a HEPA filter screen; the patent application number is: 201920761467.36 discloses an experimental console ventilation unit, purifies gas through first active carbon filter screen, second active carbon filter screen and HEPA filter screen.
Both patents can purify particulate matters and bad gases generated during experiments, and the harmful gases generated during physical experiments are generally smoke generated by short circuit or circuit overheating, but in the process of chemical experiments, acid gases (such as chlorine and hydrogen chloride) and alkaline gases (such as ammonia) can be generated, so that the acid gases and the alkaline gases are difficult to treat, and the purifying treatment effect is poor.
Disclosure of Invention
In order to solve the problems, the invention provides an experimental console ventilation device, which is realized by the following technical scheme.
The utility model provides an experimental operation platform ventilation unit, includes the wall body in operation panel and laboratory, the operation panel is by back wall body setting, still includes:
the washing mechanism comprises a washing box and a mounting frame; the washing box is fixedly connected to the middle part of the rear side of the operation table, two ends of the mounting frame are fixedly connected with the rear side plate and the bottom plate of the washing box respectively, the mounting frame is in a step shape, the mounting frame comprises inclined plates and vertical plates which are alternately arranged, a grid net is fixedly connected in the vertical plates of the mounting frame, the mounting frame divides the washing box into an air inlet cavity at the front side and an air outlet cavity at the rear side, a liquid inlet pipe and a liquid outlet pipe are fixedly connected to the upper part and the lower part of the left side of the washing box respectively, the liquid outlet pipe penetrates through the operation table, the heads of the liquid inlet pipe and the liquid outlet pipe are connected with a cover body through threads, and alkaline solution is contained at the bottom of the washing box;
the air exhausting mechanism comprises an air box, a rotating shaft and a motor; the wind box is fixedly connected to the top of the washing box, the wind inlet chamber and the wind outlet chamber are respectively arranged on the front side and the rear side of the wind box, the wind inlet chamber and the wind outlet chamber are communicated through the communication chamber, the wind outlet chamber is communicated with the washing box through the through grooves, the centers of the two sides of the communication chamber are fixedly connected with a rotating seat through struts uniformly arranged on the circumference, the rotating shaft is rotationally connected in the rotating seat, fan blades are uniformly fixedly connected on the rotating shaft, the front end of the rotating shaft is fixedly connected with a driven bevel gear, the top of the wind box is fixedly connected with an organic cover, the motor is fixedly connected in the cover, the motor is provided with a vertically downward output shaft, the output shaft is rotationally connected with a top plate of the wind box, and the bottom of the output shaft is fixedly connected with a driving bevel gear meshed with the driven bevel gear;
the water pumping mechanism is used for pumping alkaline solution at the bottom of the water washing tank to the upper part of the rear side of the mounting frame;
the air duct is symmetrically and fixedly connected to the left side and the right side of the air box, a supporting rod is fixedly connected between the air duct and the operating platform, two partition boards are fixedly connected in the air duct at intervals, an air return cavity is formed on one side of the air duct, which is close to the air box, an absorption cavity is formed in the middle of the air duct, an exhaust cavity is formed on one side of the air duct, which is far away from the air box, air return holes are densely distributed at the bottom of the air return cavity, an air return pipe and an exhaust pipe are fixedly connected to the rear sides of the air return cavity and the exhaust cavity respectively, and the air return pipe and the exhaust pipe extend outdoors through walls;
the absorption mechanism is positioned in the absorption cavity, a first blast pipe is fixedly connected at the position, corresponding to the upper part of the air outlet cavity, of the left side and the right side of the washing tank, the position, corresponding to the upper part of the air outlet cavity, of the washing tank, the head of the first blast pipe is connected with the absorption mechanism, and the absorption mechanism is also connected with the air exhaust cavity through a second blast pipe;
the negative pressure filtering mechanism comprises a lower cylinder and an upper cylinder; the lower cylinder body is fixedly connected to the front side of the air duct, the lower cylinder body is connected with the air inlet chamber through a negative pressure pipe, an outer pipe is fixedly connected to the center of a bottom plate of the lower cylinder body, a cover body is connected to the bottom of the outer pipe through a suction pipe, the lower part of the upper cylinder body is connected with the lower cylinder body, a bowl cover is connected to the bottom of the upper cylinder body, the outer pipe penetrates through the bowl cover, an annular transfer cavity is formed in the upper part of a side plate of the upper cylinder body, the transfer cavity is communicated to the bottom of a side plate of the upper cylinder body through a pore channel uniformly arranged in the circumference, and a filter screen is uniformly fixedly connected to the inner wall of the upper cylinder body corresponding to the position of the transfer cavity in the circumference.
Preferably, the front side plate of the washing tank is provided with an access hole, the washing tank further comprises a sealing seat matched with the access hole, a cover plate is fixedly connected to the outer side of the sealing seat, and the cover plate is connected with the washing tank through screws.
Preferably, the suction tube is a metal sizing tube.
Preferably, the inner wall of the lower cylinder and the outer wall of the upper cylinder are provided with external threads and internal threads which are mutually matched, the lower cylinder and the upper cylinder are detachably connected through the matching of the external threads and the external threads, the bowl cover is in sliding connection with the outer tube, the circumference of the bowl cover is uniformly provided with L-shaped connecting grooves, and the inner wall of the upper cylinder is fixedly connected with connecting shafts corresponding to the connecting grooves.
Preferably, the top of outer tube is equipped with the inner tube, the top rigid coupling of inner tube has the air-out storehouse, the air outlet has been seted up on the curb plate in air-out storehouse, and the outer wall in air-out storehouse corresponds the position of air outlet and is equipped with the baffle, the top and the air-out storehouse rotation of baffle are connected.
Preferably, the inner tube is rotatably connected in the outer tube, a group of fan blades are fixedly connected in the inner cavity of the inner tube, and a permanent magnet is fixedly connected on the outer wall of one side plate of the air outlet bin; the inner wall of the upper cylinder above the filter screen is fixedly connected with a pair of lug plates, a lug seat is rotationally connected between the lug plates, and a magnetic ball is fixedly connected at the bottom of the lug seat through a suspender.
Preferably, the water pumping mechanism comprises a carrying bin, a sliding seat, a swinging plate and a rotary table; the utility model provides a water washing machine, including transport storehouse, shower, slide, support plate, first spout, swinging arms, second spout, pivot, the second spout is seted up at the roof middle part of transport storehouse, the spout is connected at the top of transport storehouse through the drinking-water pipe, the both ends of shower are fixed with the both sides of transport storehouse, the even rigid coupling in bottom of shower has the shower nozzle, and the rigid coupling has first check valve and second check valve respectively on the drinking-water pipe and the both sides of shower, the direction that first check valve allows the fluid to pass is the direction of directional transport storehouse inner chamber, the direction that the second check valve allows the fluid to pass is the direction that deviates from the transport storehouse inner chamber, slide sealing sliding connection has seted up the cell body in the roof middle part of transport storehouse, the symmetry rigid coupling has a pair of mounting plate around the top of slide, first spout has been seted up on the upper portion of mounting plate, the top of swinging arms is connected with the top rotation of the room, the bottom rigid coupling of swinging plates has first round pin axle, the head sliding connection of first round pin axle is in first spout, still has seted up the second spout on the swinging plates, the rigid coupling has the second pivot, the pivot is connected in the second round pin axle.
Preferably, the absorption mechanism comprises an aluminum box, a first elbow and a second elbow, one end of the first elbow, which is far away from the washing box, extends into the absorption cavity, two ends of the second elbow extend into the absorption cavity and the return air cavity respectively, an inserting hole is formed in the top of the air channel corresponding to the position of the absorption cavity, the aluminum box is inserted into the absorption cavity through the inserting hole, concentrated sulfuric acid is contained in the aluminum box, a material pipe is fixedly connected to the top of the aluminum box, a cover body is connected to the head of the material pipe in a threaded manner, the first elbow and the second elbow are fixedly connected with the top plate of the aluminum box, one end of the first elbow is fixed in the bottom plate of the aluminum box and is spliced with the first elbow, the other end of the first elbow extends into the bottom of the inner cavity of the aluminum box, one end of the second elbow is fixed in the bottom plate of the aluminum box and is spliced with the second elbow, and the other end of the second elbow is located on the upper portion of the inner cavity of the aluminum box.
The invention has the beneficial effects that the air draft mechanism drives the rotating shaft and the fan blades to rotate through the motor, so that air is extracted, the negative pressure filtering mechanism generates negative pressure, harmful gas is extracted into the negative pressure filtering mechanism to be filtered, particulate matters in the gas are removed, the filtered gas enters the water washing tank, the alkaline solution is extracted to the upper part of the mounting frame through the water pumping mechanism, a water curtain is generated in the process of flowing down the alkaline solution, the gas passes through the water curtain, acidic gas in the gas is subjected to alkaline neutralization, the alkaline neutralized gas enters the absorption mechanism, the alkaline gas in the gas is neutralized through concentrated sulfuric acid, and the negative pressure filtering mechanism, the water washing mechanism and the absorption mechanism respectively remove the particulate matters, the acidic gas and the alkaline gas in the gas, so that the gas is purified more fully.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the specific embodiments will be briefly described below, it being obvious that the drawings in the following description are only some examples of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: the invention relates to an isometric view of an experimental console ventilation device when in installation and use;
fig. 2: the invention discloses a perspective schematic diagram below an experimental operation table ventilation device;
fig. 3: the cross-sectional view of the position of the air duct is provided;
fig. 4: the water washing box and the bellows are positioned in a cross-sectional view;
fig. 5: FIG. 4 shows an enlarged view of a portion at I;
fig. 6: the internal structure of the water washing box and the bellows is schematically shown;
fig. 7: a partial cross-sectional view of the pump mechanism of the present invention;
fig. 8: the transmission schematic diagram of the water pumping mechanism and the air exhausting mechanism is provided;
fig. 9: the mounting frame is a schematic perspective view;
fig. 10: the invention relates to a cross-sectional view of a negative pressure filter mechanism;
fig. 11: an enlarged view of a portion at ii shown in fig. 10;
fig. 12: an enlarged view of a portion at III shown in FIG. 10;
fig. 13: the lower cylinder body is a half cross-sectional view;
fig. 14: a half-sectional view of the inner tube of the present invention;
fig. 15: the upper cylinder body is a half cross-sectional view:
fig. 16: FIG. 15 is an enlarged view of a portion at IV;
fig. 17: the invention discloses a perspective schematic view of a bowl cover.
The reference numerals are as follows:
a-an operation table, B-a wall body;
11-a washing box, 12-a mounting rack, 13-a grid mesh, 14-an air inlet cavity, 15-an air outlet cavity, 16-an inlet pipe, 17-an outlet pipe, 18-an alkaline solution, 19-a sealing seat, 110-a cover plate and 111-screws;
21-bellows, 22-rotating shafts, 23-motors, 24-air inlet chambers, 25-air outlet chambers, 26-communication chambers, 27-through grooves, 28-support rods, 29-swivel bases, 210-fan blades, 211-driven bevel gears, 212-hoods, 213-output shafts and 214-drive bevel gears;
31-carrying bins, 32-sliding seats, 33-swinging plates, 34-turntables, 35-water pumping pipes, 36-spraying pipes, 37-spraying heads, 38-first one-way valves, 39-second one-way valves, 310-groove bodies, 311-support plates, 312-first sliding grooves, 313-first pin shafts, 314-second sliding grooves and 315-second pin shafts;
4-air duct, 41-supporting rod, 42-partition board, 43-return air cavity, 44-absorption cavity, 45-exhaust cavity, 46-return air hole, 47-return air pipe, 48-exhaust pipe, 49-first air supply pipe and 410-second air supply pipe;
51-an aluminum box, 52-a first bent pipe, 53-a second bent pipe, 54-concentrated sulfuric acid and 55-a material pipe;
the magnetic ball type magnetic ball filter comprises a lower cylinder body 61-an upper cylinder body 62-a negative pressure tube 63-an outer tube 64-an suction tube 65-a suction tube 66-a cover body 67-a bowl cover 68-a transfer cavity 69-a hole channel 610-a filter screen 611-an external thread 612-an internal thread 613-a connecting groove 614-a connecting shaft 615-an inner tube 616-an air outlet bin 617-an air outlet 618-a baffle 619-a fan blade 620-a permanent magnet 621-an ear plate 622-an ear seat 623-a suspender 624-a magnetic ball.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-17, the present invention has the following four specific embodiments.
Example 1
The utility model provides an experimental operation platform ventilation unit, includes wall body B of operation panel A and laboratory, and operation panel A leans against wall body B setting, still includes:
the washing mechanism comprises a washing tank 11 and a mounting frame 12; the washing tank 11 is fixedly connected to the middle part of the rear side of the operation desk A, two ends of the mounting frame 12 are fixedly connected with the rear side plate and the bottom plate of the washing tank 11 respectively, the mounting frame 12 is in a step shape, the mounting frame 12 comprises inclined plates and vertical plates which are alternately arranged, a grid net 13 is fixedly connected in the vertical plates of the mounting frame 12, the mounting frame 12 divides the washing tank 11 into an air inlet cavity 14 at the front side and an air outlet cavity 15 at the rear side, a liquid inlet pipe 16 and a liquid outlet pipe 17 are fixedly connected to the upper part and the lower part of the left side of the washing tank 11 respectively, the liquid outlet pipe 17 penetrates through the operation desk A, the heads of the liquid inlet pipe 16 and the liquid outlet pipe 17 are connected with a cover body through threads, and alkaline solution 18 is contained at the bottom of the washing tank 11;
the air draft mechanism comprises an air box 21, a rotating shaft 22 and a motor 23; the wind box 21 is fixedly connected to the top of the washing box 11, the wind inlet chamber 24 and the wind outlet chamber 25 are respectively arranged on the front side and the rear side of the wind box 21, the wind inlet chamber 24 and the wind outlet chamber 25 are communicated through the communication chamber 26, the wind outlet chamber 25 is communicated with the washing box 11 through the through grooves 27, the centers of the two sides of the communication chamber 26 are fixedly connected with a rotating seat 29 through supporting rods 28 uniformly arranged on the circumference, the rotating shaft 22 is rotationally connected in the rotating seat 29, fan blades 210 are uniformly fixedly connected on the circumference of the rotating shaft 22, the front end of the rotating shaft 22 is fixedly connected with a driven bevel gear 211, the top of the wind box 21 is fixedly connected with an organic cover 212, a motor 23 is fixedly connected in the cover 212, the motor 23 is provided with a vertically downward output shaft 213, the output shaft 213 is rotationally connected with the top plate of the wind box 21, and a driving bevel gear 214 meshed with the driven bevel gear 211 is fixedly connected to the bottom of the output shaft 213;
a water pumping mechanism for pumping the alkaline solution 18 at the bottom of the washing tank 11 to above the rear side of the mounting frame 12;
the air duct 4 is symmetrically and fixedly connected to the left side and the right side of the air box 21, a supporting rod 41 is fixedly connected between the air duct 4 and the operating platform A, two partition plates 42 are fixedly connected in the air duct 4 at intervals, an air return cavity 43 is formed on one side, close to the air box 21, of the air duct 4, an absorption cavity 44 is formed in the middle of the air duct 4, an air exhaust cavity 45 is formed on one side, far away from the air box 21, of the air duct 4, air return holes 46 are densely distributed at the bottom of the air return cavity 43, an air return pipe 47 and an air exhaust pipe 48 are fixedly connected to the rear sides of the air return cavity 43 and the air exhaust cavity 45 respectively, and the air return pipe 47 and the air exhaust pipe 48 extend outdoors through a wall body B;
the absorption mechanism is positioned in the absorption cavity 44, a first blast pipe 49 is fixedly connected at the position of the upper part of the left side and the right side of the washing tank 11, which corresponds to the upper part of the air outlet cavity 15, the head part of the first blast pipe 49 is connected with the absorption mechanism, and the absorption mechanism is also connected with the air exhaust cavity 45 through a second blast pipe 410;
the negative pressure filtering mechanism comprises a lower cylinder 61 and an upper cylinder 62; the lower cylinder 61 is fixedly connected to the front side of the air duct 4, the lower cylinder 61 is connected with the air inlet chamber through a negative pressure pipe 63, the center of the bottom plate of the lower cylinder 61 is fixedly connected with an outer pipe 64, the bottom of the outer pipe 64 is connected with a cover body 66 through a suction pipe 65, the lower part of the upper cylinder 62 is connected with the lower cylinder 61, the bottom of the upper cylinder 62 is connected with a bowl cover 67, the outer pipe 64 passes through the bowl cover 67, an annular transfer cavity 68 is formed in the upper part of the side plate of the upper cylinder 62, the transfer cavity 68 is communicated to the bottom of the side plate of the upper cylinder 62 through holes 69 uniformly arranged on the circumference, and a filter screen 610 is uniformly fixedly connected to the inner wall of the upper cylinder 62 corresponding to the transfer cavity 68.
Further, an access hole (not shown) is formed in the front side plate of the washing tank 11, the washing tank further comprises a sealing seat 19 adapted to the access hole, a cover plate 110 is fixedly connected to the outer side of the sealing seat 19, and the cover plate 110 is connected with the washing tank 11 through screws 111.
Further, the suction tube 65 is a metal sizing tube.
In this embodiment, as shown in fig. 4 and 5, when the motor 23 works, the output shaft 213 and the driving bevel gear 214 are driven to rotate, the driven bevel gear 211 meshed with the motor rotates, and then the rotating shaft 22 and the fan blades 210 rotate, so that when the fan blades 210 rotate, the air in the communication chamber 26 moves from front to back, and thus the air in the air inlet chamber 24 is extracted, and the air inlet chamber 24 forms negative pressure.
As shown in fig. 10, the gas in the upper cylinder 62 sequentially enters the air inlet chamber 24 through the filter screen 610, the transfer chamber 68, the pore channel 69 and the negative pressure pipe 63, the upper cylinder 62 forms negative pressure, the cover 66 can be adjusted to any position because the suction pipe 65 is a metal forming pipe, the harmful gas generated during the experiment sequentially enters the upper cylinder 62 through the cover 66, the suction pipe 65 and the outer pipe 64, the filter screen 610 intercepts the granularity in the gas, and the granularity drops into the bowl cover 67.
Thus, the air entering the air inlet chamber is filtered to remove particles, as shown in fig. 4, the filtered air sequentially enters the air inlet chamber 14 through the communication chamber 26, the air outlet chamber 25 and the through groove 27, the pumping mechanism is used for pumping alkaline solution 18 at the bottom of the washing tank 11 to the upper side of the rear side of the mounting frame 12, as shown in fig. 9, the mounting frame 12 is in a step shape, the mounting frame 12 comprises inclined plates and vertical plates which are alternately arranged, the grid net 13 is fixedly connected in the vertical plates of the mounting frame 12, the alkaline solution 18 sequentially slides down through the inclined plates, a water curtain is formed on the front side of the grid net 13, the air passes through the water curtain and the grid net 13 and enters the air outlet chamber 15, the alkaline solution 18 in the invention is sodium hydroxide or calcium hydroxide, and acid gases such as chlorine and hydrogen chloride generated in an experiment are neutralized when passing through the water curtain.
The used waste liquid can be discharged through the liquid outlet pipe 17, and a new alkaline solution 18 can be added through the liquid inlet pipe 16. The neutralization of the acid gas and alkaline solution 18 produces a fine salt which, if deposited more, can be opened and the bottom of the mounting frame 12 and the water tank 11 rinsed with clean water.
As shown in fig. 3, the gas after the first neutralization enters the absorption mechanism through the first air supply pipe 49 to absorb and neutralize the alkaline gas therein, and the gas after the second neutralization enters the air exhaust cavity 45 through the second air supply pipe 410 and is discharged to the outside through the air exhaust pipe 48, and as the harmful gas at the position of the operation desk a is continuously extracted to form negative pressure, the outside fresh air can enter the air return cavity 43 through the air return pipe 47 and is supplemented to the position of the operation desk a through the air return hole 46, so that ventilation of the operation desk a is realized.
Example two
The inner wall of the lower cylinder 61 and the outer wall of the upper cylinder 62 are provided with external threads 611 and internal threads 612 which are mutually matched, the lower cylinder 61 and the upper cylinder 62 are detachably connected through the matching of the external threads 611 and the external threads 611, the bowl cover 67 is slidably connected with the outer tube 64, the bowl cover 67 is uniformly provided with L-shaped connecting grooves 613 on the circumference, and the inner wall of the upper cylinder 62 is fixedly connected with connecting shafts 614 corresponding to the connecting grooves 613.
Further, an inner tube 615 is arranged at the top of the outer tube 64, an air outlet bin 616 is fixedly connected at the top of the inner tube 615, an air outlet 617 is arranged on a side plate of the air outlet bin 616, a baffle 618 is arranged on the outer wall of the air outlet bin 616 corresponding to the air outlet 617, and the top of the baffle 618 is rotatably connected with the air outlet bin 616.
Further, the inner tube 615 is rotatably connected in the outer tube 64, the inner cavity of the inner tube 615 is fixedly connected with a group of fan blades 619, and the outer wall of one side plate of the air outlet bin 616 is fixedly connected with a permanent magnet 620; a pair of ear plates 621 are fixedly connected to the inner wall of the upper cylinder 62 above the filter screen 610, an ear seat 622 is rotatably connected between the ear plates 621, and a magnetic ball 624 is fixedly connected to the bottom of the ear seat 622 through a hanging rod 623.
In this embodiment, since the bowl cover 67 and the upper cylinder 62 are continuously contaminated in the form of particles, cleaning is required, and as shown in fig. 13 and 15, the lower cylinder 61 and the upper cylinder 62 are detachably connected by the external screw 611 and the external screw 611, so that the upper cylinder 62 can be unscrewed.
As shown in fig. 16 and 17, when the bowl cover 67 is installed, the connecting shaft 614 is inserted into the vertical groove of the connecting groove 613, then the bowl cover 67 or the upper cylinder 62 is rotated, the connecting shaft 614 enters the horizontal groove of the connecting groove 613, and the bowl cover 67 can be disassembled by reverse operation, so that granular impurities can be poured.
The bowl cover 67 is then mounted to the upper cylinder 62, and the upper cylinder 62 is mounted to the lower cylinder 61 for reuse.
In the process of extracting the harmful gas, a gas backflow phenomenon may occur, and in order to avoid the occurrence of the gas backflow phenomenon, as shown in fig. 12 and 14, an inner cylinder, an air outlet bin 616, an air outlet 617 and a baffle 618 are provided, when negative pressure is formed in the upper cylinder 62, the extracted harmful gas will jack the baffle 618, otherwise, the baffle 618 can block the air outlet 617 to avoid the harmful gas backflow in the upper cylinder 62.
In order to avoid the situation that the filter screen 610 may be blocked during long-term use, gas flows from bottom to top in the outer tube 64 and the inner tube 615, and drives the fan blade 619 to rotate when passing through the position of the fan blade 619, so that the inner tube 615, the air outlet bin 616 and the permanent magnet 620 rotate, the baffle 618 is opened under the action of centrifugal force at a small rotating speed, and the permanent magnet 620 sequentially passes through each magnetic ball 624 when rotating, as shown in fig. 16, the magnetic balls 624 are adsorbed to swing in a direction away from the filter screen 610, and after the permanent magnet 620 is staggered, the magnetic balls 624 swing to impact the filter screen 610 under the action of gravity, so that the filter screen 610 is knocked, and the blocking is avoided.
Example III
The water pumping mechanism comprises a carrying bin 31, a sliding seat 32, a swinging plate 33 and a rotary table 34; the carrying bin 31 is fixedly connected to the upper portion of the rear side of the washing tank 11, the carrying bin 31 is located under the through groove 27, two ends of the carrying bin 31 are connected with the top of the washing tank 11 through the water suction pipe 35, the washing tank further comprises a spray pipe 36, two ends of the spray pipe 36 are fixedly connected with two sides of the carrying bin 31, a spray head 37 is uniformly fixedly connected to the bottom of the spray pipe 36, a first one-way valve 38 and a second one-way valve 39 are fixedly connected to the water suction pipe 35 and two sides of the spray pipe 36 respectively, the direction in which the first one-way valve 38 allows fluid to pass is the direction pointing to the inner cavity of the carrying bin 31, the direction in which the second one-way valve 39 allows fluid to pass is the direction deviating from the inner cavity of the carrying bin 31, the sliding seat 32 is in the carrying bin 31 in a sealing sliding manner, a groove body 310 is formed in the middle of a top plate of the carrying bin 31, a pair of support plates 311 are symmetrically fixedly connected to the front and back of the top of the sliding seat 32, a first sliding groove 312 is formed in the upper portion of the support plate 311, the top of the swing plate 33 is rotationally connected with the top of the air outlet chamber, a first pin 313 is fixedly connected to the bottom of the swing plate 33, the first pin 313 is slidingly connected to the first pin shaft 312, the head of the first pin 313 is slidingly connected to the first sliding groove 312 is in the sliding groove 312, the direction of the sliding plate is opposite to the second pin 314 is fixedly connected to the second pin 22, and the second pin 315 is fixedly connected to the second pin 22, and the second pin is fixedly connected to the second pin shaft 315.
In this embodiment, the technical characteristics of the water pumping mechanism are disclosed, as shown in fig. 4-8, when the rotating shaft 22 rotates, the rotating disc 34 is driven to rotate and the second pin shaft 315 rotates, the second pin shaft 315 drives the swinging plate 33 to reciprocate back and forth, and the bottom of the swinging plate 33 pulls the sliding seat 32 to reciprocate back and forth.
When the swinging plate 33 swings, the height of the bottom of the swinging plate is changed, and the sliding of the first pin 313 in the first sliding groove 312 can adapt to the change of the height of the bottom of the swinging plate 33.
When the carriage 32 moves forward and backward, as illustrated in fig. 7, the alkaline solution 18 on the front side of the transport bin 31 enters the shower pipe 36 and is sprayed from the spray head 37, and the alkaline solution 18 is extracted from the suction pipe 35 on the rear side; conversely, when the carriage 32 moves backward, the alkaline solution 18 on the rear side of the transport bin 31 enters the shower pipe 36 and is sprayed from the spray head 37, and the alkaline solution 18 is extracted from the suction pipe 35 on the front side. The alkaline solution 18 is continually drawn onto the mounting frame 12.
Example IV
The absorption mechanism comprises an aluminum box 51, a first bent pipe 52 and a second bent pipe 53, one end of a first air supply pipe 49, which is far away from the washing box 11, extends into the absorption cavity 44, two ends of a second air supply pipe 410 extend into the absorption cavity 44 and the return air cavity 43 respectively, an insertion hole (not labeled in the figure) is formed in the top of the air duct 4 corresponding to the position of the absorption cavity 44, the aluminum box 51 is inserted into the absorption cavity 44 through the insertion hole, concentrated sulfuric acid 54 is contained in the aluminum box 51, a material pipe 55 is fixedly connected to the top of the aluminum box 51, a cover body is connected to the head of the material pipe 55 in a threaded manner, the first bent pipe 52 and the second bent pipe 53 are fixedly connected with the top plate of the aluminum box 51, one end of the first bent pipe 52 is fixed in the bottom plate of the aluminum box 51 and is spliced with the first air supply pipe 49, the other end of the first bent pipe 52 extends into the bottom of the inner cavity of the aluminum box 51, one end of the second bent pipe 53 is fixed in the bottom plate of the aluminum box 51 and is spliced with the second air supply pipe 410, and the other end of the second bent pipe 53 is located at the upper part of the inner cavity of the aluminum box 51.
In this embodiment, as shown in fig. 3, the aluminum box 51 is provided to contain the concentrated sulfuric acid 54, and the concentrated sulfuric acid 54 passivates the aluminum box 51, so that a dense oxide film is formed on the surface of the aluminum box 51, thereby protecting the aluminum box 51.
The aluminum box 51 is inserted into the absorption chamber 44 through the insertion hole, at this time, the first bent pipe 52 is connected to the first air supply pipe 49, and the second bent pipe 53 is inserted into the second air supply pipe 410.
The gas neutralized by the alkaline solution 18 enters the first elbow pipe 52 through the first air supply pipe 49, enters the concentrated sulfuric acid 54 from the other end of the first elbow pipe 52, absorbs the alkaline gas therein, enters the exhaust cavity 45 through the second elbow pipe 53 and the second air supply pipe 410, and is discharged to the outside through the exhaust pipe 48.
Of course, in order to ensure safety, the aluminum box 51 and the air duct 4 can be detachably fixed by bolts or the like, so as to avoid the falling of the aluminum box 51 due to vibration.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. The utility model provides an experimental operation platform ventilation unit, includes the wall body in operation panel and laboratory, the operation panel is by back wall body setting, its characterized in that still includes:
the washing mechanism comprises a washing box and a mounting frame; the washing box is fixedly connected to the middle part of the rear side of the operation table, two ends of the mounting frame are fixedly connected with the rear side plate and the bottom plate of the washing box respectively, the mounting frame is in a step shape, the mounting frame comprises inclined plates and vertical plates which are alternately arranged, a grid net is fixedly connected in the vertical plates of the mounting frame, the mounting frame divides the washing box into an air inlet cavity at the front side and an air outlet cavity at the rear side, a liquid inlet pipe and a liquid outlet pipe are fixedly connected to the upper part and the lower part of the left side of the washing box respectively, the liquid outlet pipe penetrates through the operation table, the heads of the liquid inlet pipe and the liquid outlet pipe are connected with a cover body through threads, and alkaline solution is contained at the bottom of the washing box;
the air exhausting mechanism comprises an air box, a rotating shaft and a motor; the wind box is fixedly connected to the top of the washing box, the wind inlet chamber and the wind outlet chamber are respectively arranged on the front side and the rear side of the wind box, the wind inlet chamber and the wind outlet chamber are communicated through the communication chamber, the wind outlet chamber is communicated with the washing box through the through grooves, the centers of the two sides of the communication chamber are fixedly connected with a rotating seat through struts uniformly arranged on the circumference, the rotating shaft is rotationally connected in the rotating seat, fan blades are uniformly fixedly connected on the rotating shaft, the front end of the rotating shaft is fixedly connected with a driven bevel gear, the top of the wind box is fixedly connected with an organic cover, the motor is fixedly connected in the cover, the motor is provided with a vertically downward output shaft, the output shaft is rotationally connected with a top plate of the wind box, and the bottom of the output shaft is fixedly connected with a driving bevel gear meshed with the driven bevel gear;
the water pumping mechanism is used for pumping alkaline solution at the bottom of the water washing tank to the upper part of the rear side of the mounting frame;
the air duct is symmetrically and fixedly connected to the left side and the right side of the air box, a supporting rod is fixedly connected between the air duct and the operating platform, two partition boards are fixedly connected in the air duct at intervals, an air return cavity is formed on one side of the air duct, which is close to the air box, an absorption cavity is formed in the middle of the air duct, an exhaust cavity is formed on one side of the air duct, which is far away from the air box, air return holes are densely distributed at the bottom of the air return cavity, an air return pipe and an exhaust pipe are fixedly connected to the rear sides of the air return cavity and the exhaust cavity respectively, and the air return pipe and the exhaust pipe extend outdoors through walls;
the absorption mechanism is positioned in the absorption cavity, a first blast pipe is fixedly connected at the position, corresponding to the upper part of the air outlet cavity, of the left side and the right side of the washing tank, the position, corresponding to the upper part of the air outlet cavity, of the washing tank, the head of the first blast pipe is connected with the absorption mechanism, and the absorption mechanism is also connected with the air exhaust cavity through a second blast pipe;
the negative pressure filtering mechanism comprises a lower cylinder and an upper cylinder; the lower cylinder body is fixedly connected to the front side of the air duct, the lower cylinder body is connected with the air inlet chamber through a negative pressure pipe, an outer pipe is fixedly connected to the center of a bottom plate of the lower cylinder body, a cover body is connected to the bottom of the outer pipe through a suction pipe, the lower part of the upper cylinder body is connected with the lower cylinder body, a bowl cover is connected to the bottom of the upper cylinder body, the outer pipe penetrates through the bowl cover, an annular transfer cavity is formed in the upper part of a side plate of the upper cylinder body, the transfer cavity is communicated to the bottom of a side plate of the upper cylinder body through a pore channel uniformly arranged in the circumference, and a filter screen is uniformly fixedly connected to the inner wall of the upper cylinder body corresponding to the position of the transfer cavity in the circumference.
2. The ventilation device of the experiment operation table according to claim 1, wherein the front side plate of the washing tank is provided with an access hole, the ventilation device further comprises a sealing seat matched with the access hole, a cover plate is fixedly connected to the outer side of the sealing seat, and the cover plate is connected with the washing tank through screws.
3. The laboratory bench ventilation device of claim 1, wherein the suction tube is a metal sizing tube.
4. The ventilation device of the experiment operation table according to claim 1, wherein the inner wall of the lower cylinder body and the outer wall of the upper cylinder body are provided with external threads and internal threads which are mutually matched, the lower cylinder body and the upper cylinder body are detachably connected through the matching of the external threads and the external threads, the bowl cover is in sliding connection with the outer tube, the circumference of the bowl cover is uniformly provided with L-shaped connecting grooves, and the inner wall of the upper cylinder body is fixedly connected with connecting shafts corresponding to the connecting grooves.
5. The ventilation device of the experiment operation table according to claim 1, wherein an inner pipe is arranged at the top of the outer pipe, an air outlet bin is fixedly connected to the top of the inner pipe, an air outlet is formed in a side plate of the air outlet bin, a baffle is arranged at a position, corresponding to the air outlet, of the outer wall of the air outlet bin, and the top of the baffle is rotationally connected with the air outlet bin.
6. The ventilation device of the experiment operation table according to claim 5, wherein the inner tube is rotatably connected in the outer tube, a group of fan blades are fixedly connected in an inner cavity of the inner tube, and a permanent magnet is fixedly connected on the outer wall of one side plate of the air outlet bin; the inner wall of the upper cylinder above the filter screen is fixedly connected with a pair of lug plates, a lug seat is rotationally connected between the lug plates, and a magnetic ball is fixedly connected at the bottom of the lug seat through a suspender.
7. The laboratory bench ventilation device of claim 1, wherein the water pumping mechanism comprises a carrying bin, a sliding seat, a swinging plate and a turntable; the utility model provides a water washing machine, including transport storehouse, shower, slide, support plate, first spout, swinging arms, second spout, pivot, the second spout is seted up at the roof middle part of transport storehouse, the spout is connected at the top of transport storehouse through the drinking-water pipe, the both ends of shower are fixed with the both sides of transport storehouse, the even rigid coupling in bottom of shower has the shower nozzle, and the rigid coupling has first check valve and second check valve respectively on the drinking-water pipe and the both sides of shower, the direction that first check valve allows the fluid to pass is the direction of directional transport storehouse inner chamber, the direction that the second check valve allows the fluid to pass is the direction that deviates from the transport storehouse inner chamber, slide sealing sliding connection has seted up the cell body in the roof middle part of transport storehouse, the symmetry rigid coupling has a pair of mounting plate around the top of slide, first spout has been seted up on the upper portion of mounting plate, the top of swinging arms is connected with the top rotation of the room, the bottom rigid coupling of swinging plates has first round pin axle, the head sliding connection of first round pin axle is in first spout, still has seted up the second spout on the swinging plates, the rigid coupling has the second pivot, the pivot is connected in the second round pin axle.
8. The ventilation device of the experimental operation table according to claim 1, wherein the absorption mechanism comprises an aluminum box, a first elbow and a second elbow, one end of the first elbow, which is far away from the washing box, extends into the absorption cavity, two ends of the second elbow extend into the absorption cavity and the return air cavity respectively, an inserting hole is formed in the top of the air duct corresponding to the position of the absorption cavity, the aluminum box is inserted into the absorption cavity through the inserting hole, concentrated sulfuric acid is contained in the aluminum box, a material pipe is fixedly connected to the top of the aluminum box, a cover body is connected to the head of the material pipe in a threaded manner, the first elbow and the second elbow are fixedly connected with the top plate of the aluminum box, one end of the first elbow is fixed in the bottom plate of the aluminum box and is spliced with the first elbow, the other end of the first elbow extends into the bottom of the inner cavity of the aluminum box, one end of the second elbow is fixed in the bottom plate of the aluminum box and is spliced with the second elbow, and the other end of the second elbow is located at the upper part of the inner cavity of the aluminum box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410276672.9A CN117884206B (en) | 2024-03-12 | Ventilation device for experiment operation table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410276672.9A CN117884206B (en) | 2024-03-12 | Ventilation device for experiment operation table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117884206A true CN117884206A (en) | 2024-04-16 |
| CN117884206B CN117884206B (en) | 2024-07-05 |
Family
ID=
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206838149U (en) * | 2017-06-27 | 2018-01-05 | 王馨玥 | A kind of Multi-functional chemical experiment table |
| CN212418014U (en) * | 2020-02-19 | 2021-01-29 | 河南纳科建设集团有限公司 | Laboratory acid mist eliminating device of environmental protection |
| KR20220077221A (en) * | 2020-11-30 | 2022-06-09 | (주)노바프로 | Bio safety cabinet with dual positive pressure chamber |
| CN115400820A (en) * | 2022-11-02 | 2022-11-29 | 潍坊工程职业学院 | Laboratory ventilation laboratory bench |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206838149U (en) * | 2017-06-27 | 2018-01-05 | 王馨玥 | A kind of Multi-functional chemical experiment table |
| CN212418014U (en) * | 2020-02-19 | 2021-01-29 | 河南纳科建设集团有限公司 | Laboratory acid mist eliminating device of environmental protection |
| KR20220077221A (en) * | 2020-11-30 | 2022-06-09 | (주)노바프로 | Bio safety cabinet with dual positive pressure chamber |
| CN115400820A (en) * | 2022-11-02 | 2022-11-29 | 潍坊工程职业学院 | Laboratory ventilation laboratory bench |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207856619U (en) | A kind of gas cleaning plant of activated carbon adsorption | |
| CN109011911B (en) | Smoke dust and oil pollution purifying and filtering device | |
| CN112393365A (en) | Indoor air composite purification device | |
| CN109569226A (en) | A kind of coking exhaust-gas efficient processing unit | |
| CN206103597U (en) | Chemical industry workshop air dust purification device | |
| CN208911740U (en) | A kind of float glass waste gas residual heat processing unit | |
| CN117884206B (en) | Ventilation device for experiment operation table | |
| CN117884206A (en) | Ventilation device for experiment operation table | |
| CN105135497A (en) | Smoke-return-free restaurant flue oil smoke purifier | |
| CN203949242U (en) | Wu Fanqi restaurant flue fume purifier of fume | |
| CN207893877U (en) | A kind of Household Air Purifier having moistening function | |
| CN209438377U (en) | A kind of harmful gas purifying device for multi-media sharing hall | |
| CN212262759U (en) | Gas dust removal device for air purification | |
| CN211084355U (en) | Ventilation equipment with clean function | |
| CN203949244U (en) | Restaurant's flue fume purifier of fume | |
| CN210544288U (en) | Air purifying device | |
| CN209355329U (en) | A kind of oil fume purifier | |
| CN208727096U (en) | A kind of dust pelletizing system for flue gas of refuse burning processing | |
| CN208429889U (en) | A kind of Novel domestic sewage treatment device | |
| CN206008324U (en) | A kind of industrial plant waste gas purification dust arrester | |
| CN109173508A (en) | The method that a kind of pair of bedroom air carries out water mist precipitation and purification and dehumidifying | |
| CN220990186U (en) | Dust collector that concrete production used | |
| CN116036799B (en) | Tail gas absorbing device is used in cefaloning preparation | |
| CN219272604U (en) | Flue gas purifying and absorbing tower | |
| CN221015137U (en) | Fire smoke purifying device |
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 | ||
| GR01 | Patent grant |