CN216827808U

CN216827808U - Fume chamber is used in laboratory with purification performance

Info

Publication number: CN216827808U
Application number: CN202122931185.6U
Authority: CN
Inventors: 陶宏均; 陶玉婷
Original assignee: Wuhan Huaweixin Purification Engineering Co ltd
Current assignee: Wuhan Huaweixin Purification Engineering Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-06-28
Anticipated expiration: 2031-11-26

Abstract

The utility model provides a laboratory fume hood with a purification function, which belongs to the technical field of fume hoods and comprises a fume hood body, wherein a filter lattice is arranged in the fume hood body, an exhaust port is formed in the upper end of the fume hood body, an air inlet is formed in the lower end of the filter lattice, the filter lattice is respectively communicated with the exhaust port and the air inlet, and an exhaust fan is arranged in the fume hood body and used for extracting air in a laboratory; a filter frame is arranged in the filter grid, a polyester fiber filter material layer, a silver ion sterilization layer and an active carbon adsorption layer are sequentially arranged in the filter frame from top to bottom, and the polyester fiber filter material layer, the silver ion sterilization layer and the active carbon adsorption layer are used for filtering gas; a group of clamping mechanisms are arranged in the filter lattices and used for clamping the filter lattices; a set of unfreezing assemblies is arranged in the fume chamber cabinet body and used for unfreezing the clamping.

Description

Fume chamber is used in laboratory with purification performance

Technical Field

The utility model belongs to the technical field of fume hoods, and particularly relates to a fume hood with a purification function for a laboratory.

Background

The cabinet exhaust hood is commonly known as a fume hood, similar to the enclosure. The small part spray booth and the chemical laboratory fume hood are typical structures of cabinet type exhaust hoods. A large-scale chamber type ventilation cabinet has a completely opened side surface, and an operator works in the cabinet and is mainly used for large-scale paint spraying, powder bagging and the like. The working opening of the fume hood has great influence on the air distribution in the hood, and the air distribution directly influences the working effect of the cabinet type exhaust hood.

The fume chamber among the prior art is with the toxic gas discharge in the laboratory outside the laboratory, can guarantee that the air in the laboratory can not cause the injury to the personnel in the laboratory, nevertheless after the harmful gas discharges to the outside, can cause the pollution to the external atmosphere, be unfavorable for the protection to the environment, partial laboratory can set up the filter screen in vent pipe and filter the toxic gas, but the filter effect is low, and the filter screen difficult dismounting that sets up leads to after a period of time uses, the condition of jam can appear, the ventilation effect who leads to the fume chamber is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a laboratory fume hood with a purification function, and aims to solve the problems that toxic gas in a laboratory is discharged to the outside of the laboratory, so that the air in the laboratory can be ensured not to cause harm to personnel in the laboratory, but after the harmful gas is discharged to the outside, the outside atmosphere can be polluted, the environment is not protected, part of laboratories can be provided with filter screens in ventilating pipelines to filter the toxic gas, but the filtering effect is low, and the arranged filter screens are not easy to disassemble, so that the ventilation effect of the fume hood is low due to the fact that the filter screens are blocked after being used for a period of time.

In order to achieve the purpose, the utility model provides the following technical scheme:

a laboratory fume hood with a purification function comprises a fume hood body, wherein a filter grid is arranged in the fume hood body, an exhaust port is formed in the upper end of the fume hood body, an air inlet is formed in the lower end of the filter grid, the filter grid is communicated with the exhaust port and the air inlet respectively, an exhaust fan is arranged in the fume hood body and used for extracting air in a laboratory; a filter frame is arranged in the filter grid, a polyester fiber filter material layer, a silver ion sterilization layer and an active carbon adsorption layer are sequentially arranged in the filter frame from top to bottom, and the polyester fiber filter material layer, the silver ion sterilization layer and the active carbon adsorption layer are used for filtering gas; a group of clamping mechanisms are arranged in the filter lattices and used for clamping the filter lattices; the internal a set of subassembly that unfreezes that is equipped with of fume chamber cabinet, the subassembly that unfreezes is used for removing and filters check joint.

According to a preferable scheme of the utility model, a sealing plate is arranged at the side end of the filter frame, six dovetail grooves are formed in the filter frame, dovetail blocks are connected in the six dovetail grooves in a sliding manner, and the six dovetail blocks are fixedly connected to two ends of the polyester fiber filter material layer, the silver ion sterilization layer and the activated carbon adsorption layer respectively.

As a preferred scheme of the utility model, each clamping mechanism comprises a first groove arranged in the filter cell, two first limiting posts are fixedly connected in the first groove, a supporting plate is slidably connected to the circumferential surfaces of the two first limiting posts, a clamping block is fixedly connected to the top end of the supporting plate, the clamping block is clamped with the filter frame, two first springs are fixedly connected to one end, far away from the clamping block, of the supporting plate, and the two first springs are respectively sleeved on the circumferential surfaces of the two first limiting posts.

As a preferable scheme of the present invention, the unfreezing assembly includes a trapezoidal block fixedly connected to the top end of the support plate, a first lead screw is rotatably connected to a side end of the first groove, the first lead screw movably penetrates through a side end of the filter cell outward and extends outward, an extrusion block is threadedly connected to a circumferential surface of the first lead screw, and an inclined surface of the extrusion block contacts with an inclined surface of the trapezoidal block.

As a preferable scheme of the utility model, pull grooves are formed in the side ends of the polyester fiber filter material layer, the silver ion sterilization layer and the activated carbon adsorption layer.

As a preferable scheme of the present invention, a sealing strip is fixedly connected in the sealing plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. in this device, the adsorption filtration through polyester fiber precoat, silver ion sterilization layer and active carbon adsorption layer in this device can effectually filter the toxic gas in the laboratory, has carried out effectual protection to external environment.

2. In this device, in polyester fiber precoat, silver ion sterilization layer and active carbon adsorption layer located the filter stand, and can dismantle the filter stand through latch mechanism, conveniently wash polyester fiber precoat, silver ion sterilization layer and active carbon adsorption layer, can effectually guarantee the ventilation efficiency of fume chamber, protect the environment simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

fig. 1 is a front perspective view of a laboratory fume hood with a purification function according to the present invention;

FIG. 2 is a first partial cross-sectional view of a laboratory fume hood with decontamination capability in accordance with the present invention;

Fig. 3 is a second partial sectional view of a laboratory fume hood with a decontamination function according to the present invention;

fig. 4 is a first partial perspective view of a laboratory fume hood with decontamination capability in accordance with the present invention;

fig. 5 is a second partial perspective view of a laboratory fume hood with a purification function according to the present invention.

In the figure: 1. a fume hood body; 2. an exhaust port; 3. filtering grids; 4. an air inlet; 5. an exhaust fan; 8. a first groove; 9. a support plate; 10. a first lead screw; 11. extruding the block; 12. a trapezoidal block; 13. a first limit post; 14. a first spring; 15. a clamping block; 16. drawing a groove; 17. a sealing plate; 18. a sealing strip; 19. a filter frame; 20. a polyester fiber filter material layer; 21. a silver ion sterilizing layer; 22. an activated carbon adsorption layer; 23. a dovetail block; 24. a dovetail groove.

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.

Example 1

Referring to fig. 1-5, a fume hood with purifying function for laboratory use includes a fume hood body 1, and is characterized in that: a filter lattice 3 is arranged in the fume hood body 1, an exhaust port 2 is arranged at the upper end of the fume hood body 1, an air inlet 4 is arranged at the lower end of the filter lattice 3, the filter lattice 3 is respectively communicated with the exhaust port 2 and the air inlet 4, an exhaust fan 5 is arranged in the filter lattice 4, and the exhaust fan 5 is used for extracting air in a laboratory;

a filter frame 19 is arranged in the filter grid 3, a polyester fiber filter material layer 20, a silver ion sterilization layer 21 and an active carbon adsorption layer 22 are sequentially arranged in the filter frame 19 from top to bottom, and the polyester fiber filter material layer 20, the silver ion sterilization layer 21 and the active carbon adsorption layer 22 are used for filtering gas;

a group of clamping mechanisms are arranged in the filter lattices 3 and used for clamping the filter lattices 3;

a group of unfreezing assemblies are arranged in the ventilation cabinet body 1 and used for unfreezing the filter grids 3 in a clamped mode.

In the specific embodiment of the utility model, toxic gas in a laboratory can be effectively filtered through the adsorption and filtration of the polyester fiber filter material layer 20, the silver ion sterilization layer 21 and the activated carbon adsorption layer 22, so that the external environment is effectively protected, the polyester fiber filter material layer 20, the silver ion sterilization layer 21 and the activated carbon adsorption layer 22 are arranged in the filter rack 19, and the filter rack 19 can be disassembled through the clamping mechanism, so that the polyester fiber filter material layer 20, the silver ion sterilization layer 21 and the activated carbon adsorption layer 22 can be conveniently cleaned or replaced, the ventilation efficiency of the ventilation cabinet can be effectively ensured, and the environment is protected.

Example 2

Referring to fig. 4 specifically, a sealing plate 17 is arranged at a side end of the filter frame 19, six dovetail grooves 24 are formed in the filter frame 19, dovetail blocks 23 are slidably connected in the six dovetail grooves 24, and the six dovetail blocks 23 are fixedly connected to two ends of the polyester fiber filter material layer 20, the silver ion sterilization layer 21 and the activated carbon adsorption layer 22 respectively.

In this embodiment: the dovetail block 23 slides in the dovetail groove 24, so that the polyester fiber filter material layer 20, the silver ion sterilization layer 21 and the activated carbon adsorption layer 22 can be rapidly installed and enter the filter frame 19, and the disassembly is convenient.

Example 3

Referring to fig. 3 and 5 specifically, the clamping mechanism includes a first groove 8 arranged in the filter cell 3, two first limiting columns 13 fixedly connected in the first groove 8, a support plate 9 slidably connected to the circumferential surfaces of the two first limiting columns 13, a clamping block 15 fixedly connected to the top end of the support plate 9, the clamping block 15 and the filter frame 19 are clamped together, two first springs 14 fixedly connected to one end of the support plate 9 far away from the clamping block 15, and the circumferential surfaces of the two first limiting columns 13 are respectively sleeved with the two first springs 14.

In this embodiment: the clamping block 15 is upwards extruded through the elasticity of the first spring 14, so that the filtering frame 19 is clamped at the concave part of the filtering frame 19, and clamping is realized.

Example 4

Specifically referring to fig. 2 and 5, the unfreezing assembly comprises a trapezoidal block 12 fixedly connected to the top end of the supporting plate 9, the side end of the first groove 8 is rotatably connected with a first screw rod 10, the first screw rod 10 movably penetrates through the side end of the filter grid 3 outwards and extends outwards, the circumferential surface of the first screw rod 10 is in threaded connection with an extrusion block 11, and the inclined surface of the extrusion block 11 is in contact with the inclined surface of the trapezoidal block 12.

In this embodiment: rotating first lead screw 10 can drive extrusion piece 11 and remove, and the position of extrusion piece 11 removes drive trapezoidal piece 12 and moves down, and trapezoidal piece 12 removes and drives backup pad 9 and slide in first recess 8, and backup pad 9 drives joint piece 15 and moves down.

Example 5

Specifically referring to fig. 3, the side ends of the polyester fiber filter layer 20, the silver ion sterilization layer 21 and the activated carbon adsorption layer 22 are all provided with pulling grooves 16.

In this embodiment: the polyester fiber filter material layer 20, the silver ion sterilization layer 21 and the activated carbon adsorption layer 22 can be conveniently pulled out by extending fingers into the pulling groove 16.

Example 6

Referring specifically to fig. 5 and 4, a sealing strip 18 is fixedly connected to the sealing plate 17.

In this embodiment: the sealing strip 18 may further seal the sealing plate 17 to prevent air that needs to be filtered from leaking back into the laboratory.

The working principle is as follows: poisonous air in the laboratory is extracted by the air discharge fan 5, get into the filter stand 19 through the air inlet 4, at first carry out preliminary absorption to poisonous gas in the air through the active carbon adsorption layer 22, kill the bacterium through the silver ion sterilization layer 21 afterwards, other impurity that exist in the filtration air through the polyester fiber filtering material layer 20 at last, the air passes through gas vent 2 discharge outdoor afterwards, this device is when needing to change or clear up polyester fiber filtering material layer 20, silver ion sterilization layer 21 and active carbon adsorption layer 22, can drive the extrusion piece 11 through rotating first lead screw 10 and remove, the position of extrusion piece 11 removes drive trapezoidal piece 12 and moves down, trapezoidal piece 12 removes and drives backup pad 9 and slides in first recess 8, backup pad 9 drives joint piece 15 and moves down, relieve the joint to filtering grid 3, can take out filtering grid 3, to polyester fiber filtering material layer 20, The silver ion sterilization layer 21 and the activated carbon adsorption layer 22 are cleaned or replaced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a fume chamber is used in laboratory with purification performance, includes the fume chamber cabinet body (1), its characterized in that: a filter lattice (3) is arranged in the fume hood body (1), an exhaust port (2) is arranged at the upper end of the fume hood body (1), an air inlet (4) is arranged at the lower end of the filter lattice (3), the filter lattice (3) is respectively communicated with the exhaust port (2) and the air inlet (4), an exhaust fan (5) is arranged in the air inlet (4), and the exhaust fan (5) is used for extracting air in a laboratory;

a filter frame (19) is arranged in the filter grid (3), a polyester fiber filter material layer (20), a silver ion sterilization layer (21) and an active carbon adsorption layer (22) are sequentially arranged in the filter frame (19) from top to bottom, and the polyester fiber filter material layer (20), the silver ion sterilization layer (21) and the active carbon adsorption layer (22) are used for filtering gas;

a group of clamping mechanisms are arranged in the filter lattices (3), and the clamping mechanisms are used for clamping the filter lattices (3);

Be equipped with a set of subassembly of unfreezing in the fume chamber cabinet body (1), the subassembly of unfreezing is used for removing filter grid (3) joint.

2. The laboratory fume hood with purification function according to claim 1, wherein: the side of filtering frame (19) is equipped with closing plate (17), six dovetail grooves (24) have been seted up in filtering frame (19), six equal sliding connection has dovetail block (23) in dovetail groove (24), six dovetail block (23) fixed connection is respectively in the both ends of polyester fiber filtering material layer (20), silver ion sterilization layer (21) and active carbon adsorption layer (22).

3. The laboratory fume hood with purification function according to claim 2, wherein: clamping mechanism all includes first recess (8) of seting up in filtering check (3), two first spacing post (13), two of fixedly connected with in first recess (8) the circumference surface sliding connection of first spacing post (13) has backup pad (9), the top fixedly connected with joint piece (15) of backup pad (9), joint piece (15) and filter frame (19) looks joint, two first springs (14) of one end fixedly connected with of joint piece (15) are kept away from in backup pad (9), two the circumference surface of two first spacing post (13) is located to first spring (14) cover respectively.

4. A laboratory fume hood with decontamination function according to claim 3, wherein: the unfreezing assembly comprises a trapezoidal block (12) fixedly connected to the top end of the supporting plate (9), the side end of the first groove (8) is rotatably connected with a first screw rod (10), the first screw rod (10) outwards movably penetrates through the side end of the filter lattice (3) and outwards extends, the circumferential surface of the first screw rod (10) is in threaded connection with an extrusion block (11), and the inclined surface of the extrusion block (11) is in contact with the inclined surface of the trapezoidal block (12).

5. The laboratory fume hood with purification function according to claim 4, wherein: the side ends of the polyester fiber filter material layer (20), the silver ion sterilization layer (21) and the activated carbon adsorption layer (22) are provided with pulling grooves (16).

6. The laboratory fume hood with purification function according to claim 5, wherein: and a sealing strip (18) is fixedly connected in the sealing plate (17).