CN219483716U

CN219483716U - Fume hood filtered by active carbon filtering system

Info

Publication number: CN219483716U
Application number: CN202320468954.XU
Authority: CN
Inventors: 倪颂泉
Original assignee: Yikelin Instrument Equipment Shanghai Co ltd
Current assignee: Yikelin Instrument Equipment Shanghai Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-08-08
Anticipated expiration: 2033-03-13

Abstract

The utility model discloses a fume hood filtered by an active carbon filtering system, which comprises: one end of the fume hood body is fixedly connected with a breather pipe; the filtering mechanism, it sets up in the upper surface of fume hood body, and filtering mechanism includes: the top of the filter box is provided with a box cover through a screw, and the lower surface of the box cover is fixedly connected with a pressing plate; the outer walls of the clamping frames are fixed on the inner wall of the filter box; the filter assemblies are arranged between two adjacent clamping frames and are used for filtering the active carbon of the waste gas; the positioning mechanisms are arranged on two sides of the top of the filter assembly and used for positioning, dismounting and mounting the filter assembly. The utility model utilizes the matched arrangement mode of the filter box and the filter assembly, is convenient for filtering and purifying the gas by using the activated carbon loaded in the filter assembly, improves the filtering efficiency, and ensures that the filter assembly is convenient and fast to assemble and disassemble by matching the positioning mechanism with the clamping frame, and is convenient for reasonably arranging and replacing the activated carbon.

Description

Fume hood filtered by active carbon filtering system

Technical Field

The utility model relates to the technical field of fume hoods, in particular to a fume hood filtered by an active carbon filtering system.

Background

Fume hoods are commonly known as fume hoods, and similar to closed hoods, small-part paint spray hoods and chemical laboratory fume hoods are typical fume hoods, and when the fume hoods treat pollutants, the air pump is required to discharge the polluted waste gas.

Although current fume hood can carry out the filtration of certain degree to the polluted gas through filter cloth, but filterable waste gas granule is limited, can't carry out quick purification to the harmful substance in the wind, and activated carbon can carry out quick purification to waste gas, but current fume hood's filtration load and can not be convenient rationally use and change activated carbon, influence fume hood waste gas's filter effect.

Disclosure of Invention

The utility model aims to provide a fume hood filtered by an active carbon filter system, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a fume hood for filtration by an activated carbon filtration system, comprising:

one end of the fume hood body is fixedly connected with a breather pipe;

a filtering mechanism disposed on an upper surface of the fume hood, the filtering mechanism comprising:

the top of the filter box is provided with a box cover through a screw, and the lower surface of the box cover is fixedly connected with a pressing plate;

the outer walls of the clamping frames are fixed on the inner wall of the filter box;

the filter assemblies are arranged between two adjacent clamping frames and are used for filtering the active carbon of the waste gas;

the positioning mechanisms are arranged on two sides of the top of the filter assembly and used for positioning, dismounting and mounting the filter assembly.

Preferably, the filter assembly comprises:

the outer wall of the rectangular frame is fixedly connected with a sealing strip for sealing the inner wall of the filter box;

and two ventilation filter fabrics which are matched with the rectangular frame to load the activated carbon.

Preferably, the rectangular frame is connected with two adjacent clamping frames in a sliding and penetrating way, and two adjacent ventilation filter fabrics are respectively fixed on two sides of the inner wall of the rectangular frame.

Preferably, the positioning mechanism comprises a first pressure spring, a push rod, a clamping groove, a positioning groove, a second pressure spring, a top block and a clamping plate, wherein the first pressure spring is fixed between the push rod and the outer wall of the clamping frame, the second pressure spring is fixed between the positioning groove and the top block, and the clamping plate is movably clamped with the inner cavity of the clamping groove.

Preferably, the clamping groove is formed in the middle of the clamping frame, and one end of the ejector rod is connected with one end of the inner cavity of the clamping groove in a sliding and penetrating mode.

Preferably, two adjacent positioning grooves are respectively formed in two sides of the top of the rectangular frame, and the bottom of the clamping plate is rotationally connected with the bottom of the inner wall of the positioning groove through positioning nails.

Preferably, one side of the filter box is fixedly connected with an air pump, and the air outlet end of the air pump is fixedly connected with an air outlet pipe.

The utility model has the technical effects and advantages that:

(1) The utility model utilizes the matched arrangement mode of the filter box and the filter assembly, is convenient for filtering and purifying the gas by using the activated carbon loaded in the filter assembly, improves the filtering efficiency, and ensures that the filter assembly is convenient to assemble and disassemble by matching the positioning mechanism with the clamping frame, and is convenient for reasonably arranging and replacing the activated carbon;

(2) According to the utility model, the clamping plate is conveniently jacked into the inner cavity of the clamping groove by jacking the second pressure spring in a matched arrangement mode of the clamping plate and the clamping groove, so that the position between the rectangular frame and two adjacent clamping frames is stable, the stability of the position of the rectangular frame is improved, and the clamping plate is conveniently jacked out of the inner cavity of the clamping groove by the jacking rod by pressing the jacking rod, so that the rectangular frame is convenient and fast to assemble and disassemble.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic diagram of a cross-sectional side view of a filter box of the present utility model.

FIG. 3 is a schematic diagram of the cross-sectional front view of the filter box of the present utility model.

Fig. 4 is a schematic view of a partial enlarged structure at a in fig. 3 according to the present utility model.

In the figure: 1. a fume hood body; 2. a vent pipe; 3. a filtering mechanism; 31. a filter box; 32. a case cover; 33. a pressing plate; 34. a clamping frame; 35. a filter assembly; 351. a rectangular frame; 352. a sealing strip; 353. ventilation filter cloth; 36. a positioning mechanism; 361. a first compression spring; 362. a push rod; 363. a clamping groove; 364. a positioning groove; 365. a second compression spring; 366. a top block; 367. a clamping plate; 4. an air pump; 5. and an air outlet pipe.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present utility model provides a fume hood for filtration by an activated carbon filtration system as shown in fig. 1-4, comprising:

one end of the fume hood body 1 is fixedly connected with a ventilation pipe 2, so that gas in the inner cavity of the fume hood body 1 can be conveniently dispersed;

a filter mechanism 3 provided on the upper surface of the fume hood 1, the filter mechanism 3 including:

the top of the filter box 31 is provided with a box cover 32 through a screw, one end of the vent pipe 2 is fixedly connected with one end of the filter box 31 in a penetrating way, the lower surface of the box cover 32 is fixedly connected with a pressing plate 33, the lower surface of the pressing plate 33 is made of sealing rubber, and the pressing plate 33 is connected with the top of an inner cavity of the filter box 31 in a penetrating way;

a plurality of card frames 34, its outer wall is fixed in the inner wall of rose box 31, and card frame 34 is the U type structure of inversion, and a plurality of filter components 35, it sets up between two adjacent card frames 34 for the active carbon of waste gas filters, and filter components 35 include: the rectangular frames 351 are connected with the two adjacent clamping frames 34 in a sliding and penetrating way, sealing strips 352 used for sealing the inner walls of the filter boxes 31 are fixedly connected to the outer walls of the rectangular frames 351, the bottoms of the pressing plates 33 are bonded and sealed with the top ends of the plurality of rectangular frames 351, two ventilation filter fabrics 353 are respectively fixed to two sides of the inner walls of the rectangular frames 351, the two ventilation filter fabrics 353 and the rectangular frames 351 are convenient to form a complete rectangular cavity, the rectangular cavity is matched with the rectangular frames 351 to load activated carbon, gas can conveniently pass through one ventilation filter fabric 353 on one side of the rectangular frames 351 and then is contacted with the activated carbon, and then is dispersed from the inner cavities of the other ventilation filter fabrics 353, so that the gas can be filtered and purified, and the gas can be conveniently purified in a multi-layer manner through the arrangement of the plurality of the rectangular frames 351;

the positioning mechanisms 36 are arranged on two sides of the top of the filter assembly 35 and are used for positioning and dismounting the filter assembly 35, the positioning mechanisms 36 comprise a first pressure spring 361, an ejector rod 362, a clamping groove 363, a positioning groove 364, a second pressure spring 365, an ejector block 366 and a clamping plate 367, the first pressure spring 361 is fixed between the ejector rod 362 and the outer wall of the clamping frame 34, the clamping groove 363 is arranged in the middle of the clamping frame 34, one end of the ejector rod 362 is connected with one end of an inner cavity of the clamping groove 363 in a sliding and penetrating way, and the ejector rod 362 cannot be separated from the outer wall of the clamping frame 34 at will through the first pressure spring 361;

two adjacent constant head tanks 364 are respectively arranged on two sides of the top of the rectangular frame 351, a second pressure spring 365 is fixed between the constant head tank 364 and a jacking block 366, one end of the jacking block 366 is in an arc surface arrangement, stable jacking of a clamping plate 367 is facilitated, the other end of the jacking block 366 is fixedly connected with a sliding rod, a sliding tube is sleeved on the outer wall of one end of the sliding rod in a sliding manner, the other end of the sliding tube is fixedly inserted into the inner wall of the constant head tank 364, the jacking block 366 is conveniently limited in position through the sliding rod and the sliding tube, the second pressure spring 365 is sleeved on the outer wall of the sliding tube and the outer wall of the sliding rod, stability of the second pressure spring 365 in use is conveniently improved, the clamping plate 367 is movably clamped with the inner cavity of the clamping groove 363, the bottom of the clamping plate 367 is rotatably connected with the inner wall of the constant head tank 364 through a positioning pin, the clamping plate 363 is clamped with the inner cavity of the clamping groove 362, the rectangular frame 351 cannot be pulled out of the inner cavity of the two adjacent clamping frames 34 at will, convenience and stability of the rectangular frame 351 for dismounting the rectangular frame 351 with less adsorbed impurities are conveniently replaced, and the rectangular frame 351 with reasonable utilization of the inner cavity of the rectangular frame 351 is conveniently replaced, and the active carbon 351 is conveniently replaced.

One side fixedly connected with air pump 4 of rose box 31, the inlet end of air pump 4 and the other end fixed interlude of rose box 31 are connected, and the end fixedly connected with outlet duct 5 of giving vent to anger of air pump 4 is convenient for the stable efflux of gas in the fume hood body 1.

The working principle of the utility model is as follows:

when the air pump is used, the air pump 4 is opened to enable the filter box 31 to be in a negative pressure state, waste gas in the inner cavity of the fume hood body 1 can be conveniently sucked into the inner cavity of the filter box 31 through the breather pipe 2, and waste gas particles can be conveniently isolated on the outer wall of one of the ventilation filter cloth 353 through the arrangement of the filter assembly 35, so that the waste gas can repeatedly pass through the inner cavities of the rectangular frames 351, activated carbon in the inner cavities of the rectangular frames can filter and purify the gas for multiple times, the filtering efficiency is improved, and the purified gas can be dispersed from the air outlet pipe 5 through the air pump 4;

the active carbon in the inner cavity of the rectangular frame 351 close to one end of the ventilation pipe 2 can be replaced after being used for a long time, the rectangular frame 351 far away from one end of the ventilation pipe 2 and the active carbon in the inner cavity of the inner cavity can be moved to the inner cavity of the filter box 31 close to one end of the ventilation pipe 2, the ejector rod 362 is convenient to eject the clamping plate 367 out of the inner cavity of the clamping groove 363 by pressing the ejector rod 362, the rectangular frame 351 is convenient to assemble and disassemble, the clamping plate 367 is convenient to eject into the inner cavity of the clamping groove 363 by pushing the second pressure spring 365, the position between the rectangular frame 351 and the two adjacent clamping frames 34 is stable, the stability of the position of the rectangular frame 351 is improved, and the reasonable arrangement and the replacement and the use of the active carbon are convenient.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A fume hood for filtration by an activated carbon filtration system, comprising:

one end of the fume hood body (1) is fixedly connected with a ventilation pipe (2);

the method is characterized in that:

a filter mechanism (3) provided on an upper surface of the fume hood body (1), the filter mechanism (3) comprising:

the top of the filter box (31) is provided with a box cover (32) through a screw, and the lower surface of the box cover (32) is fixedly connected with a pressing plate (33);

a plurality of clamping frames (34), the outer walls of which are fixed on the inner wall of the filter box (31);

a plurality of filter components (35) which are arranged between two adjacent clamping frames (34) and are used for filtering the active carbon of the waste gas;

and the positioning mechanisms (36) are arranged on two sides of the top of the filter assembly (35) and are used for positioning, dismounting and mounting the filter assembly (35).

2. Fume hood filtered by an activated carbon filtration system according to claim 1, characterized in that said filtration assembly (35) comprises:

the outer wall of the rectangular frame (351) is fixedly connected with a sealing strip (352) for sealing the inner wall of the filter box (31);

and two ventilation filter cloths (353) which are matched with the rectangular frame (351) to load activated carbon.

3. A fume hood filtered by an activated carbon filtration system according to claim 2, wherein said rectangular frame (351) is slidably interposed between two adjacent clamping frames (34), and two adjacent ventilation filter cloths (353) are respectively fixed to both sides of the inner wall of the rectangular frame (351).

4. The fume hood filtered by the activated carbon filter system according to claim 1, wherein the positioning mechanism (36) comprises a first compression spring (361), a push rod (362), a clamping groove (363), a positioning groove (364), a second compression spring (365), a top block (366) and a clamping plate (367), the first compression spring (361) is fixed between the push rod (362) and the outer wall of the clamping frame (34), the second compression spring (365) is fixed between the positioning groove (364) and the top block (366), and the clamping plate (367) is movably clamped with the inner cavity of the clamping groove (363).

5. The fume hood filtered by the activated carbon filter system according to claim 4, wherein the clamping groove (363) is formed in the middle of the clamping frame (34), and one end of the ejector rod (362) is connected with one end of the inner cavity of the clamping groove (363) in a sliding and penetrating manner.

6. The fume hood filtered by the activated carbon filter system according to claim 4, wherein two adjacent positioning slots (364) are respectively formed on two sides of the top of the rectangular frame (351), and the bottom of the clamping plate (367) is rotatably connected with the bottom of the inner wall of the positioning slot (364) through positioning nails.

7. A fume hood filtered by an activated carbon filter system according to claim 1, wherein an air pump (4) is fixedly connected to one side of the filter box (31), and an air outlet pipe (5) is fixedly connected to an air outlet end of the air pump (4).