CN115318787A - Pre-condensation deacidification device for fume hood - Google Patents
Pre-condensation deacidification device for fume hood Download PDFInfo
- Publication number
- CN115318787A CN115318787A CN202210974136.7A CN202210974136A CN115318787A CN 115318787 A CN115318787 A CN 115318787A CN 202210974136 A CN202210974136 A CN 202210974136A CN 115318787 A CN115318787 A CN 115318787A
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- Prior art keywords
- pipe
- condensation
- acid removal
- driving
- tank
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- 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
- 238000009833 condensation Methods 0.000 title claims abstract description 64
- 239000003517 fume Substances 0.000 title claims abstract description 22
- 239000002253 acid Substances 0.000 claims abstract description 75
- 230000005494 condensation Effects 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000000498 cooling water Substances 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims description 16
- 230000002457 bidirectional effect Effects 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000003595 mist Substances 0.000 abstract description 24
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000000184 acid digestion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
Abstract
The invention discloses a pre-condensing and deacidifying device of a fume hood, which comprises a hood body, wherein an exhaust pipe is arranged at the top of the hood body, an induced draft fan and a deacidifying box are sequentially arranged on the exhaust pipe, a condensing pipe group is arranged in the deacidifying box, a liquid collecting box is arranged below the deacidifying box, the liquid collecting box is communicated with the deacidifying box through the liquid collecting pipe, a cooling water tank is arranged outside the deacidifying box, the cooling water tank is communicated with the condensing pipe group through a circulating water pipe, and a circulating water pump is arranged on the circulating water pipe. The device is provided with the circulating water pump, the cooling water tank, the condensation pipe group, the acid removal box and other components, so that acid mist can be rapidly condensed into acid liquor, and the acid mist can be recovered through the liquid collection box.
Description
Technical Field
The invention relates to the technical field of experimental equipment, in particular to a fume hood pre-condensation deacidification device.
Background
The fume hood, also called fume hood, is a kind of large equipment in laboratory, especially in laboratory of inspection and detection mechanism, and it mainly uses forced ventilation mode to pump away the toxic and harmful gas overflowed in the experimental process and send it to the outdoor, thus keeping clean environment of laboratory and reducing the contact of experimenters and toxic and harmful gas. Deposit, heavy metal occurrence characteristic among the animal and plant is the important link in studying heavy metal element geochemistry action, during heavy metal element among the medium such as analysis deposit, usually need carry out acid digestion and catch up with sour experiment in laboratory fume hood, the experimentation can discharge a large amount of concentrated acid mist in the short time, a large amount of concentrated acid mist gets into the exhaust pipe, can condense backward flow gradually, thereby lead to the exhaust pipe by corrosion damage, and the backward flow acidizing fluid can cause serious potential safety hazard after flowing into the fume hood backward.
Disclosure of Invention
In view of the above, the present invention provides a fume hood pre-condensation deacidification apparatus, which aims to solve the problems in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a fume hood pre-condensation deacidification apparatus comprising: the kitchen cabinet comprises a cabinet body, wherein an exhaust pipe is arranged at the top of the cabinet body, an induced draft fan and an acid removal tank are sequentially arranged on the exhaust pipe, a condensation pipe group is arranged in the acid removal tank, a liquid collection tank is arranged below the acid removal tank, the liquid collection tank is communicated with the acid removal tank through a liquid collection pipe, a cooling water tank is arranged outside the acid removal tank, the cooling water tank is communicated with the condensation pipe group through a circulating water pipe, and a circulating water pump is arranged on the circulating water pipe.
Preferably, the condenser pipe group includes first condenser pipe, second condenser pipe and connecting pipe, first condenser pipe with the second condenser pipe set up side by side in removing the sour incasement and all with the axis of exhaust pipe sets up perpendicularly, the water inlet of first condenser pipe passes through circulating pipe with coolant tank's delivery port intercommunication, the delivery port of first condenser pipe passes through the connecting pipe with the water inlet intercommunication of second condenser pipe, the delivery port of second condenser pipe passes through circulating pipe with coolant tank's water inlet intercommunication.
Preferably, the first condensation duct and the second condensation duct are both provided in a serpentine structure.
Preferably, the left side of the inside of the acid removing box is provided with a first bellmouth with a narrow left side and a wide right side, and the right side of the inside of the acid removing box is provided with a second bellmouth with a wide left side and a narrow right side.
Preferably, the bottom of the acid removing box is provided with a connecting seat, a through hole penetrating through the connecting seat is formed in the connecting seat, the through hole is of an inverted cone structure, and the through hole is communicated with the liquid collecting box through the liquid collecting pipe.
Preferably, a working cavity is arranged at the upper part of the cabinet body, a movable plate is slidably connected inside the working cavity, a telescopic pipe is arranged at one end, close to the working cavity, of the exhaust pipe, the telescopic pipe is arranged in the working cavity, a fixed joint communicated with the telescopic pipe is arranged at one end, far away from the exhaust pipe, of the telescopic pipe, the fixed joint is fixedly connected to the movable plate, one end, far away from the telescopic pipe, of the fixed joint penetrates through the movable plate, and a driving mechanism used for driving the movable plate to move up and down is arranged in the working cavity.
Preferably, the driving mechanism includes a motor, a bidirectional ball screw, two driving sliders and two driving rods, the bidirectional ball screw is rotatably connected in the working cavity and located above the movable plate, one end of the bidirectional ball screw penetrates through the side wall of the cabinet body and is connected with the output end of the motor, the two driving sliders are respectively connected to the left end and the right end of the bidirectional ball screw through ball nuts, the bottom of each driving slider is hinged to one driving rod, the other end of each driving rod is hinged to the top of the movable plate, and the two driving sliders and the two driving rods are symmetrically arranged along the central axis of the telescopic tube.
Preferably, the number of the driving mechanisms is two, and the two driving mechanisms are symmetrically arranged at the front side and the rear side of the telescopic pipe.
Preferably, a first sliding groove matched with the driving sliding block is formed in the top wall of the working cavity, and the driving sliding block is arranged in the first sliding groove in a sliding mode.
Preferably, all be equipped with the slide rail on the left and right sides inner wall of working chamber, the left and right sides of fly leaf be equipped with the second spout of slide rail looks adaptation, the slide rail set up in the second spout.
Compared with the prior art, the invention has the following technical effects:
1) According to the device, the induced draft fan is started to discharge acid mist generated in an experiment out of a cabinet body and enter the exhaust pipe, meanwhile, the circulating water pump is started to pump cooling water in the cooling water tank into the condensation pipe group, then the acid mist enters the acid removing tank through the exhaust pipe and contacts with the condensation pipe group, so that the acid mist is rapidly condensed into acid liquid, the acid liquid drops downwards under the action of the self weight and enters the liquid collecting pipe, and finally falls into the liquid collecting tank to finish acid liquid collection, and rapid condensation and recovery of the acid mist are finished, so that the phenomenon that the exhaust pipe is corroded and damaged due to gradual condensation of the acid mist in the exhaust pipe can be effectively reduced, and the risk that the backflow acid liquid flows back into the ventilation cabinet to cause serious potential safety hazards can be reduced;
2) According to the invention, the movable plate is driven by the driving mechanism to move up and down, and the movable plate drives the fixed joint to move up and down, so that the fixed joint can be adjusted to a position which is proper to the acid mist source, the acid mist absorption effect can be further improved, and the parts in the working cavity are prevented from being corroded and damaged due to the acid mist remained in the working cavity.
Drawings
FIG. 1 is a schematic structural diagram of a fume hood pre-condensation deacidification apparatus according to the present invention;
FIG. 2 is a schematic view of the structure of the acid tank and the liquid tank of the present invention;
FIG. 3 is a side cross-sectional view of an acid removal tank;
FIG. 4 is a schematic view of the internal structure of the working chamber;
in the figure: 1. a cabinet body; 2. a drive mechanism; 201. a motor; 202. a bidirectional ball screw; 203. driving the slide block; 204. a drive rod; 3. an exhaust duct; 4. an induced draft fan; 5. an acid removal box; 6. a condenser tube bank; 601. a first condenser pipe; 602. a second condenser pipe; 603. a connecting pipe; 7. a liquid collection tank; 8. a liquid collecting pipe; 9. a cooling water tank; 10. a circulating water pipe; 11. a circulating water pump; 12. a first bell mouth; 13. a second bell mouth; 14. a connecting seat; 15. a through hole; 16. a working chamber; 17. a movable plate; 18. fixing the joint; 19. a telescopic pipe; 20. a slide rail; 21. an exhaust hood; 22. a motor support.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention discloses a fume hood pre-condensation deacidification apparatus, comprising: the kitchen cabinet comprises a kitchen cabinet body 1, an exhaust pipe 3 is arranged at the top of the kitchen cabinet body 1, an induced draft fan 4 and an acid removal tank 5 are sequentially arranged on the exhaust pipe 3, a condenser tube bank 6 is arranged in the acid removal tank 5, a liquid collecting tank 7 is arranged below the acid removal tank 5, the liquid collecting tank 7 is communicated with the acid removal tank 5 through the liquid collecting tube 8, a cooling water tank 9 is arranged outside the acid removal tank 5, the cooling water tank 9 is communicated with the condenser tube bank 6 through a circulating water tube 10, and a circulating water pump 11 is arranged on the circulating water tube 10.
In this embodiment, the condensation pipe group 6 includes a first condensation pipe 601, a second condensation pipe 602 and a connection pipe 603, the first condensation pipe 601 and the second condensation pipe 602 are disposed side by side in the acid removing tank 5 and are both perpendicular to the central axis of the exhaust pipe 3, a water inlet of the first condensation pipe 601 is communicated with a water outlet of the cooling water tank 9 through a circulation water pipe 10, a water outlet of the first condensation pipe 601 is communicated with a water inlet of the second condensation pipe 602 through the connection pipe 603, a water outlet of the second condensation pipe 602 is communicated with a water inlet of the cooling water tank 9 through the circulation water pipe 10, when in use, cooling water enters from the first condensation pipe 601, then enters the second condensation pipe 602 through the connection pipe 603, and finally returns to the cooling water tank 9 through the circulation water pipe 10, in this process, acid mist enters the acid removing tank 5 through the exhaust pipe 3, acid mist entering the acid removing tank 5 is condensed through the second condensation pipe and the second condensation pipe in turn to form acid solution, in this process, the advancing direction of the acid mist is opposite to the whole flowing direction in the condensation pipe group 6, thereby the cooling water can be condensed to the greatest extent, the condensation pipe can be used, the condensation water can be cooled, and the condensation pipe can be recovered, the acid mist can be avoided, and the condensation pipe can be recycled, and the condensation efficiency can be maximized.
In this embodiment, the first condensation pipe 601 and the second condensation pipe 602 are both set to have a serpentine structure, so as to increase the contact area between the acid mist and the first condensation pipe 601 and the second condensation pipe 602, thereby improving the condensation efficiency and the condensation effect.
In this embodiment, remove the inside left side of acid tank 5 and be equipped with the wide first horn mouth 12 in narrow right side in a left side, first horn mouth 12 and the air intake intercommunication of acid tank 5 remove, can guide the acid mist in the exhaust pipe 3 to spread fast in acid tank 5 removes, increase the area of contact of acid mist and condenser pipe on the one hand, on the other hand can reduce the speed of acid mist in removing the acid tank, the contact time of extension acid mist and condenser pipe, thereby improve condensation efficiency and condensation effect, the inside right side of removing acid tank 5 is equipped with the narrow second horn mouth 13 in wide right side in a left side, second horn mouth 13 and the air outlet intercommunication of removing acid tank 5, can reduce the risk that acidizing fluid gets into the exhaust pipe behind the acid tank.
In this embodiment, deacidify case 5 bottoms and be equipped with connecting seat 14, connecting seat 14 is inside to be equipped with the through-hole 15 that link up connecting seat 14, and through-hole 15 is the back taper structure, the leakage fluid dram upper end, and through-hole 15 passes through collector tube 8 and collector box 7 intercommunication.
In this embodiment, a working chamber 16 is disposed on the upper portion of the cabinet body 1, a movable plate 17 is slidably connected inside the working chamber 16, the size of the movable plate 17 matches the size of the working chamber 16, an extension tube 19 is disposed at an end of the exhaust duct 3 close to the working chamber 16, the extension tube 19 is disposed in the working chamber 16, a fixed joint 18 communicated with the extension tube 19 is disposed at an end of the extension tube 19 away from the exhaust duct 3, the fixed joint 18 is fixedly connected to the movable plate 17, and an end of the fixed joint 18 away from the extension tube 19 penetrates through the movable plate 17 and extends into a lower portion of the movable plate 17, a driving mechanism 2 for driving the movable plate 17 to move up and down is disposed in the working chamber 16, when in use, the movable plate 17 is driven to move up and down by the driving mechanism 2, the movable plate 17 drives the fixed joint 18 to move up and down, so that the fixed joint can be adjusted to a position suitable for a source of acid mist, thereby improving an absorption effect of acid mist, and preventing parts in the working chamber from being corroded and damaged due to acid mist remaining in the working chamber.
In the present embodiment, an exhaust hood 21 is disposed at one end of the fixed joint 18 below the movable plate 17.
In this embodiment, the driving mechanism 2 includes a motor 201, a bidirectional ball screw 202, two driving sliders 203, and two driving rods 204, the bidirectional ball screw 202 is rotatably connected in the working chamber 16 and located above the movable plate 17, one end of the bidirectional ball screw 202 penetrates through a side wall of the cabinet body 1 and is connected to an output end of the motor 201, the motor 201 is fixedly connected to an outer wall of the cabinet body 1 through a motor support 22, the two driving sliders 203 are respectively connected to left and right ends of the bidirectional ball screw 202 through ball nuts, a driving rod 204 is hinged to a bottom of each driving slider 203, the other end of each driving rod 204 is hinged to a top of the movable plate 17, the two driving sliders 203 and the two driving rods 204 are symmetrically arranged along a central axis of the telescopic tube 19, when in use, the motor 201 is started, the motor 201 drives the bidirectional ball screw 202 to rotate, the bidirectional ball screw 202 drives the two driving sliders 203 to synchronously move toward or away from each other, the two driving sliders 203 respectively drive the two driving sliders 203 to rotate around a hinge point of the driving rod 204, and the two driving sliders 204 drive the movable plate 17 to move up and down along a vertical direction, thereby adjusting the position of the movable plate.
In this embodiment, the number of the driving mechanisms 2 is two, and the two driving mechanisms 2 are symmetrically disposed at the front and rear sides of the extension tube 19, so as to improve the stability of the movable plate during movement.
In this embodiment, the top wall of the working chamber 16 is provided with a first sliding chute adapted to the driving slider 203, and the driving slider 203 is slidably disposed in the first sliding chute, so as to guide the driving slider 203 and improve the stability of the driving slider during movement.
In this embodiment, the inner walls of the left and right sides of the working cavity 16 are provided with slide rails 20, the left and right sides of the movable plate 17 are provided with second sliding grooves adapted to the slide rails 20, and the slide rails 20 are disposed in the second sliding grooves to improve the stability of the movable plate when moving.
In the present embodiment, the bellows 19 is a telescopic bellows.
In this embodiment, the induced draft fan 4 is a centrifugal fan.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (10)
1. A fume hood pre-condensation deacidification apparatus, comprising: the kitchen cabinet comprises a cabinet body (1), an exhaust pipe (3) is arranged at the top of the cabinet body (1), an induced draft fan (4) and an acid removal tank (5) are sequentially arranged on the exhaust pipe (3), a condensation pipe group (6) is arranged in the acid removal tank (5), a liquid collecting tank (7) is arranged below the acid removal tank (5), the liquid collecting tank (7) is communicated with the acid removal tank (5) through a liquid collecting pipe (8), a cooling water tank (9) is arranged outside the acid removal tank (5), the cooling water tank (9) is communicated with the condensation pipe group (6) through a circulating water pipe (10), and a circulating water pump (11) is arranged on the circulating water pipe (10).
2. The fume hood pre-condensation and acid removal device according to claim 1, wherein the condensation pipe group (6) comprises a first condensation pipe (601), a second condensation pipe (602) and a connecting pipe (603), the first condensation pipe (601) and the second condensation pipe (602) are arranged in the acid removal tank (5) side by side and are both perpendicular to the central axis of the exhaust pipe (3), the water inlet of the first condensation pipe (601) is communicated with the water outlet of the cooling water tank (9) through the circulating water pipe (10), the water outlet of the first condensation pipe (601) is communicated with the water inlet of the second condensation pipe (602) through the connecting pipe (603), and the water outlet of the second condensation pipe (602) is communicated with the water inlet of the cooling water tank (9) through the circulating water pipe (10).
3. A fume hood pre-condensation deacidification device according to claim 2, wherein said first condenser pipe (601) and said second condenser pipe (602) are provided with a serpentine configuration.
4. The fume hood pre-condensation acid removal device according to claim 1, wherein the inner left side of the acid removal box (5) is provided with a first bell mouth (12) which is narrow at left and wide at right, and the inner right side of the acid removal box (5) is provided with a second bell mouth (13) which is wide at left and narrow at right.
5. The fume hood pre-condensation and acid removal device according to claim 4, wherein a connecting seat (14) is arranged at the bottom of the acid removal tank (5), a through hole (15) penetrating through the connecting seat (14) is formed in the connecting seat (14), the through hole (15) is in an inverted cone structure, and the through hole (15) is communicated with the liquid collection tank (7) through the liquid collection pipe (8).
6. The fume hood pre-condensation and acid removal device according to claim 1, wherein a working chamber (16) is arranged at the upper part of the hood body (1), a movable plate (17) is slidably connected inside the working chamber (16), a telescopic pipe (19) is arranged at one end of the exhaust pipe (3) close to the working chamber (16), the telescopic pipe (19) is arranged in the working chamber (16), a fixed joint (18) communicated with the telescopic pipe (19) is arranged at one end of the telescopic pipe (19) far away from the exhaust pipe (3), the fixed joint (18) is fixedly connected to the movable plate (17), one end of the fixed joint (18) far away from the telescopic pipe (19) penetrates through the movable plate (17), and a driving mechanism (2) for driving the movable plate (17) to move up and down is arranged in the working chamber (16).
7. The fume hood pre-condensation and acid removal device according to claim 6, wherein the driving mechanism (2) comprises a motor (201), a bidirectional ball screw (202), two driving sliders (203) and two driving rods (204), the bidirectional ball screw (202) is rotatably connected in the working chamber (16) and is located above the movable plate (17), one end of the bidirectional ball screw (202) penetrates through the side wall of the hood body (1) and is connected with the output end of the motor (201), the two driving sliders (203) are respectively connected to the left end and the right end of the bidirectional ball screw (202) through ball nuts, the bottom of each driving slider (203) is hinged with one driving rod (204), the other end of each driving rod (204) is hinged to the top of the movable plate (17), and the two driving sliders (203) and the two driving rods (204) are symmetrically arranged along the central axis of the telescopic pipe (19).
8. A fume hood pre-condensation and acid removal device according to claim 7, wherein the number of said driving mechanisms (2) is two, and two of said driving mechanisms (2) are symmetrically arranged on the front and back sides of said telescopic tube (19).
9. The fume hood pre-condensation and acid removal device according to claim 7, wherein a first sliding groove adapted to the driving slider (203) is formed on the top wall of the working chamber (16), and the driving slider (203) is slidably disposed in the first sliding groove.
10. The fume hood pre-condensation and acid removal device according to claim 6, wherein sliding rails (20) are disposed on inner walls of left and right sides of the working chamber (16), second sliding grooves adapted to the sliding rails (20) are disposed on left and right sides of the movable plate (17), and the sliding rails (20) are disposed in the second sliding grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210974136.7A CN115318787A (en) | 2022-08-15 | 2022-08-15 | Pre-condensation deacidification device for fume hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210974136.7A CN115318787A (en) | 2022-08-15 | 2022-08-15 | Pre-condensation deacidification device for fume hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115318787A true CN115318787A (en) | 2022-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210974136.7A Pending CN115318787A (en) | 2022-08-15 | 2022-08-15 | Pre-condensation deacidification device for fume hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115318787A (en) |
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