CN217511416U

CN217511416U - Exhaust gas purification device on fume chamber is used in laboratory

Info

Publication number: CN217511416U
Application number: CN202221026354.XU
Authority: CN
Inventors: 史为建; 马照; 李梅; 潘云飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-09-30
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses a waste gas purification device on fume chamber is used in laboratory, including shell, air-blower, waste gas entry, a plurality of supporting layer of packing, basin, water pump, flowmeter, conveying pipe group, a plurality of atomizer, a plurality of filler openings, blast pipe, first fan blade group and defroster, the advantage: through in with waste gas suction device, filter from the multilayer filler filter layer at guide waste gas, the air majority after will purifying at last discharges back indoor, and the air emission of minority is outdoor, for present with all exhaust purification after all discharge the air in, purify the air of equivalent volume and arrange indoor, this device festival has reduced the indoor air quantity of need entering to great reduction the waste of resource.

Description

Exhaust gas purification device on fume chamber is used in laboratory

Technical Field

The utility model relates to a waste gas purification, concretely relates to waste gas purification device on fume chamber is used in laboratory.

Background

In a laboratory, various waste gases are generally generated, and one side of the laboratory needs to discharge the waste gases, and the other side of the laboratory needs to purify air outside the laboratory and then send the purified air into the laboratory. In order to discharge the waste gas, the waste gas is sucked out by arranging a ventilation cabinet in a laboratory, the sucked waste gas cannot be directly discharged into the air, the waste gas needs to be conveyed into a washing tower arranged outside a building and can be released into the air after being purified, the purified waste gas usually reaches the standard of reuse, and the waste of resources is generated by directly discharging the purified waste gas into the air, but the existing washing towers are large and can only be built outdoors or on the top of the building, and the air purified by the washing tower is difficult to be collected again and conveyed back to the laboratory.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is that the existing laboratory evolves the generated waste gas to the standard which can be reused through the washing tower and then discharges the waste gas into the air, and simultaneously purifies the outside air and then transmits the purified air into the laboratory, thereby wasting a large amount of resources, and the existing washing tower is too large and is not suitable for indoor use; aiming at the problems, the waste gas purification device on the fume hood for the laboratory comprises a shell, a blower, a waste gas inlet, a plurality of filler supporting layers, water troughs, a water pump, a flow meter, a conveying conduit group, a plurality of atomizing spray heads, a plurality of filler ports, an exhaust pipe, a first fan blade group and a demister, wherein the waste gas inlet is formed in the lower end of the outer end face on the left side of the shell, the air outlet of the blower is connected to the waste gas inlet, an air inlet is connected to the air inlet of a cabinet body, two clapboards are arranged in the inner cavity of the shell, the first fan blade group is arranged between the two clapboards, the plurality of filler supporting layers are all arranged in a cavity formed between the two clapboards and the inner walls on the two sides of the shell, the water troughs are arranged at the lower end on the right side of the shell and are communicated with the inner cavity of the shell, the water pump is arranged on the water troughs, a water suction end is communicated with a water storage tank, the conveying conduit group is distributed above each filler supporting layer and is connected with a water outlet end of the water pump, the flowmeter sets up in the delivery port department of water pump, and a plurality of atomizer settings are on lieing in the pipeline section of packing supporting layer top conveying pipe group, and the position that a plurality of filler mouths correspond every packing supporting layer is seted up on the shell, and the blast pipe is seted up at the shell top and is communicated with each other with the shell inner chamber, with same one side of basin, the defroster setting is in the shell, lies in the below of blast pipe.

This embodiment technical scheme filters from the multilayer filler filter layer through with waste gas suction device, at the guide waste gas, and it is indoor to discharge the air majority after purifying at last, and the air of minority is discharged to outdoor, for present with all exhaust purification after all discharge to the air in, purify the air discharge of equivalent amount indoor, this device festival has reduced the indoor air quantity of need entering to great reduction the waste of resource.

The technical proposal of the utility model is optimized that the upper and lower plate edges of the left side clapboard in the shell are disconnected with the upper and lower cavity walls of the inner cavity of the shell, the upper plate edge of the right side clapboard is connected with the upper cavity wall of the inner cavity of the shell, the lower plate edge is disconnected with the lower cavity wall of the shell, the disconnection distance between the lower plate edge of the left side clapboard and the lower cavity wall of the inner cavity of the shell is one third of the disconnection distance between the lower plate edge of the right side clapboard and the lower cavity wall of the shell, because the air is the reason of ascending, the two clapboards have the function of guiding, the waste gas after primary purification on the left side of the left side clapboard is guided to the bottom of the right side clapboard, and then enters the right side from the bottom of the right side clapboard for secondary purification, the disconnection distance between the lower plate edge of the left side clapboard is one third of the disconnection distance between the lower plate edge of the right side clapboard, the advantage that when the neutralizing liquid is added in the cavity, the amount of the neutralizing liquid only exceeds the height of the lower plate edge of the left side clapboard, the gas can not pass through the broken part of the lower plate edge of the lower left baffle plate to be directly purified for the second time.

It is right the utility model discloses technical scheme's preferred, the position that waste gas entry was seted up is less than the homonymy supporting layer that packs the below, and the outer end interface slope of waste gas entry sets up on the shell lateral wall, and the outer end interface slope sets up and can prevent that neutralization liquid from adding more, during the air-blower is advanced in the backward flow, leads to the air-blower to damage.

It is right the utility model discloses technical scheme's preferred, conveying pipe group is including main duct and three group's branch flow pipes, branch flow pipe one end and main duct intercommunication, and the other end passes the conch wall of shell and two baffles and arranges each top of packing the supporting layer in, and the pipe is the metal material, and three group's branch flow pipes are in order to make each top of packing the supporting layer have three watering pipes, guarantee that neutralization liquid sprays more even to then be better to exhaust purification effect, the life-span ratio that metal water pipe used is longer.

It is right to the utility model discloses technical scheme's preferred, the mouth that packs is equipped with sealed window, and sealed window is middle for transparent material, and the shrouding is for playing sealed effect, prevents that waste gas from leaking, is transparent material in the middle of the closing plate for the convenience of observing inside situation.

It is right the utility model discloses technical scheme's preferred, the water pump with carry the pipe group to pass through three-way valve connection together, another connecting water pipe of three-way valve, neutralization liquid need be changed after long-time use, the benefit of water pump cooperation three-way valve is that the water pump both can be for carrying neutralization liquid in the pipe group, also can utilize the water pump to take neutralization liquid out.

To the utility model discloses technical scheme's preferred, the basin top is avoided the water pump and has been seted up the basin mouth, and the basin mouth is for the convenience of adding neutralization solution.

It is right the utility model discloses technical scheme's preferred, first flabellum group includes first motor and first flabellum, first flabellum erects in the shell cavity, be located between two baffles, the shell conchal wall is worn out to the pivot one end of erectting of first flabellum, first electric motor rotor is connected with the one end that stretches out the shell, drive first flabellum clockwise rotation, first flabellum group can advance the right of right side baffle with the waste gas guide after the left side purification of left side baffle and purify, the flow speed of waste gas in the shell cavity has been increased, thereby the efficiency of purification has been improved.

It is right the utility model discloses technical scheme's preferred, the blast pipe is the three-way pipe, shell inner chamber is connected respectively to three opening, it is indoor and outdoor, connect indoor logical mouth department and be equipped with second flabellum group, second flabellum group includes second motor and second flabellum, the second flabellum is erect in the opening, the opening wall body is worn out to the pivot one end of erectting of second flabellum, second electric motor rotor is connected with the pivot of erectting that stretches out the opening wall body, it clockwise rotates to drive the second flabellum, the three-way pipe is for partly air escape laboratory, let some outdoor air of entering in the laboratory, firstly reach the equilibrium in order to let laboratory and outdoor air, secondly in order to increase the oxygen in the laboratory, logical mouth department in the connection is equipped with second flabellum group and is in order to stay the air after most purification indoor, only a small amount of air escape is outdoor.

Compared with the prior art, the utility model beneficial effect who has is:

1. the technical scheme of the utility model, through with waste gas suction device, filter from the multilayer filter layer of packing at the guide waste gas, the air majority after will purifying at last discharges back indoorly, and the air discharge of subtotal is outdoor, for present with all exhaust purification after all discharge the air, purify equivalent amount of air discharge indoor, this apparatus festival has reduced the indoor air quantity of needs entering to great reduction the waste of resource.

Drawings

FIG. 1 is an oblique top view of an exhaust gas purifying device on a laboratory fume hood according to the present embodiment;

fig. 2 is a partially cutaway inside view of an exhaust gas purification device on a laboratory fume hood according to the present embodiment;

FIG. 3 is a right side perspective view of an exhaust gas purifying apparatus of the present embodiment in a laboratory fume hood;

FIG. 4 is a rear view of the exhaust gas purifying apparatus and a view showing an internal structure of the exhaust pipe of the fume chamber for a laboratory according to the embodiment;

FIG. 5 is a schematic view of the waste gas purifying apparatus installed in the cabinet of the fume hood for laboratory use according to the present embodiment;

fig. 6 is a side view of the cabinet for the fume hood for the laboratory according to the embodiment of the present invention.

Detailed Description

The technical solution in the embodiment of the present invention will be described in detail with reference to the accompanying fig. 1-6 in the embodiment of the present invention.

Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be connected through an intermediate medium.

Example 1

As shown in fig. 1-6, an exhaust gas purification device for a laboratory fume hood is characterized in that: comprises a shell 1, a blower 2, a waste gas inlet 3, a plurality of filler supporting layers 4, a water tank 5, a water pump 6, a flowmeter 7, a conveying conduit group 8, a plurality of atomizing nozzles 9, a plurality of filler ports 10, an exhaust pipe 11, a first fan blade group 12 and a demister 13, wherein the waste gas inlet 3 is arranged at the lower end of the outer end face at the left side of the shell 1, an air outlet of the blower 2 is connected with the waste gas inlet 3, an air inlet is connected with an air inlet of a cabinet body, two partition plates are arranged in an inner cavity of the shell 1, the first fan blade group 12 is arranged between the two partition plates, the plurality of filler supporting layers 4 are all arranged in a cavity formed between the two partition plates and the inner walls at the two sides of the shell 1, the water tank 5 is arranged at the lower end at the right side of the shell 1 and is communicated with the inner cavity of the shell 1, the water pump 6 is arranged on the water tank 5, a water absorption end is communicated with the water storage tank, the conveying conduit group 8 is distributed above each filler supporting layer 4 and is connected with a water outlet end of the water pump 6, flowmeter 7 sets up in the delivery port department of water pump 6, and a plurality of atomizer 9 sets up on the pipeline section that is located 4 tops conveying pipe group 8 of filler supporting layer, and the position that a plurality of filler mouths 10 correspond every filler supporting layer 4 is seted up on the shell, and blast pipe 11 is seted up at shell 1 top and is communicated with each other with shell 1 inner chamber, with same one side of basin 5, defroster 13 sets up in shell 1, is located the below of blast pipe 11.

The housing 1 is made of a corrosion-resistant material, since some of the neutralizing liquid is acidic or alkaline, corrosion is avoided, and the service life is reduced.

The filler supporting layer 4 is a supporting net, and is made of a corrosion-resistant hard material, because a large amount of solid purification materials are usually paved on the supporting net, most commonly, a large amount of activated carbon is paved on the surface of the supporting net to purify waste gas, the supporting net has a large weight, and the supporting net has corrosion resistance and certain load-carrying capacity.

Two flange limits and the upper and lower chamber wall disconnection of 1 inner chamber of shell 1 inner chamber on the left side baffle about in shell 1, the flange limit is connected with the upper chamber wall of 1 inner chamber of shell on the right side baffle, the lower flange limit and the lower chamber wall disconnection of shell 1, the distance of the flange limit and the disconnection of 1 inner chamber lower chamber wall of shell under the left side baffle is the one third of the lower chamber wall disconnection distance of flange limit and shell 1 under the right side baffle, its advantage is when adding neutralization liquid for the intracavity, the volume of neutralization liquid is as long as exceed the height of the flange limit under the left side baffle, gaseous just can not pass directly from the lower flange disconnection department of left side baffle below and carry out the secondary purification.

The position that waste gas entry 3 was seted up is less than homonymy filler supporting layer 4 the bottommost, and the outer end interface slope setting of waste gas entry 3 can prevent that neutralization solution from adding more on the shell 1 lateral wall, and the backward flow is into air-blower 2, leads to air-blower 2 to damage on the outer end interface slope setting.

The conveying conduit group 8 comprises a main conduit 81 and three branch flow pipes 82, one end of each branch flow pipe 82 is communicated with the main conduit, the other end of each branch flow pipe passes through the shell wall of the shell 1 and two baffles and is arranged above each filler supporting layer 4, the conduit is made of metal, the three branch flow pipes are used for enabling three sprinkler pipes to be arranged above each filler supporting layer, the spraying of neutralizing liquid is ensured to be more uniform, the exhaust gas purifying effect is better, the service life of the metal water pipe is longer,

the branch pipes 82 above the uppermost packing support layer 4 on the left side do not pass through the left partition plate, and therefore are suspended from the top of the inner cavity of the housing 1.

The filling opening 10 is provided with a sealing window 10-1, the middle of the sealing window 10-1 is made of transparent materials, the sealing window is used for sealing and preventing waste gas from leaking, and the middle of the sealing window 10-1 is made of transparent materials so as to be convenient for observing the internal condition.

The water pump 6 is connected with the conveying pipe group 8 through the three-way valve 61, the other end of the three-way valve 61 is connected with the water outlet pipe, the neutralizing liquid needs to be replaced after long-time use, and the advantage of the water pump matched with the three-way valve 61 is that the water pump 6 can be used for conveying the neutralizing liquid in the conveying pipe group and can also be used for pumping out the neutralizing liquid by the water pump 6.

The water tank 5 has a water tank opening which is used for adding neutralizing liquid in order to avoid the water pump 6 at the top, the water tank opening is provided with a water tank door plate 51, and the edge of the water tank door plate 51 is provided with a sealing strip to avoid the leakage of internal gas.

First fan blade group 12 includes first motor 121 and first fan blade 122, first fan blade 122 erects in 1 inner chamber of shell, be located between two baffles, the pivot one end of erectting of first fan blade 122 is worn out the shell 1 conch wall, first motor 121 rotor is connected with the one end that stretches out shell 1, drive first fan blade 122 clockwise turning, first fan blade group can lead the right of right side baffle into with the waste gas after the left side purification of left side baffle purifies and purify, the flow velocity of waste gas in the shell cavity has been increased, thereby the efficiency of purification has been improved.

The height of the first blade 122 is higher, and the first motor 121 is not convenient to be arranged at the same height as the first blade 122 to drive the first blade 122 to rotate, so that the first motor 121 is arranged at the bottom of the housing 1, and the first blade 122 is driven to rotate clockwise by a belt.

The exhaust pipe 11 is a three-way pipe, the three ports are respectively connected with the inner cavity of the housing 1, indoor and outdoor, the port connected with the indoor is provided with a second fan blade group 14, the second fan blade group 14 comprises a second motor 141 and a second fan blade 142, the second fan blade 142 is erected in the port, one end of the erecting rotating shaft of the second fan blade 142 penetrates out of the port wall body, a rotor of the second motor 141 is connected with the erecting rotating shaft extending out of the port wall body and drives the second fan blade 142 to rotate clockwise, the three-way pipe is used for exhausting part of air out of a laboratory and allowing some outdoor air to enter the laboratory, firstly, the laboratory and the outdoor air are balanced, secondly, oxygen in the laboratory is increased, the port connected with the indoor is provided with the second fan blade group 14 for leaving most of purified air indoors and only a small amount of air out of the laboratory.

A baffle is arranged between the port of the three-way pipe which leads to the outdoor and the port which leads to the indoor, so that the gas which is led to the outdoor port by the second fan blade group 14 is prevented from being sucked into the port which leads to the indoor, and the outdoor air is also sucked into the room.

As shown in fig. 5, the exhaust gas purifying device is installed in the storage cabinet below the fume hood, the air inlet of the blower 2 is connected with a long air pipe, the long air pipe penetrates through the left wall of the storage cabinet, extends to the top of the fume hood and is connected to the air inlet at the top of the fume hood, the indoor through opening in the exhaust pipe 11 penetrates through the right wall of the storage cabinet and is fixed on the wall, the outdoor through opening is also connected with a long air pipe, and the rear wall penetrating through the storage cabinet is communicated with the outdoor ventilation pipe in the laboratory.

An observation window 1-1 is arranged on a shell 1 corresponding to the lower plate edge breaking position of the left side partition plate, the observation window 1-1 is sealed by transparent glass, and the observation window 1-1 is used for observing the quantity of the neutralization liquid through the observation window 1-1 when the neutralization liquid is added, so that the page of the neutralization liquid is higher than a part of the lower plate edge breaking position of the left side partition plate, the page is used for observing the residual quantity of the neutralization liquid in normal times, and the neutralization liquid needs to be added in time when the breaking position is close.

The use method of the exhaust gas purification device on the laboratory fume hood of the embodiment is as follows: firstly opening a water tank door plate 51 above a water tank 5, adding neutralizing liquid into the water tank 5, observing the height of the neutralizing liquid through an observation window 1-1 when the neutralizing liquid is added, wherein the neutralizing liquid is 5-10 cm higher than the broken part of the lower edge of a left baffle plate, closing the water tank door plate 51 after the adding of the neutralizing liquid is finished, then opening a sealing window 10-1 of a filling port 10, adding active carbon into the sealing window, uniformly spreading the active carbon on a filling material 4, closing a sealing plate 10-1 after the active carbon is spread, then starting an air blower 2, a first motor 121, a second motor 141 and a water pump 6, observing the value of a flow meter 7, adjusting the flow rate, starting the air blower 2, sucking waste gas at a wind port at the top end of a ventilation cabinet into a waste gas inlet 3 of a shell 1, enabling the waste gas entering an inner cavity to firstly pass through two filling material supporting layers 4 on the left baffle plate to realize primary filtration, the exhaust gas after the first evolution is sucked into the inner cavity on the right side of the right partition plate through the rotation of the first fan blades 122 and passes through the two filler supporting layers 4, the exhaust gas passing through the last filler supporting layer 4 is evolved, finally the exhaust gas passes through the demister 13 to remove the neutralizing liquid in the air, the purified exhaust gas flows into the exhaust pipe 11, the rotating second fan blades 142 suck most of the purified air back into the laboratory, and a small part of the air flows out of the laboratory along the other port.

Above embodiment only is for explaining the utility model discloses a technical thought can not be injectd with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change of doing on technical scheme basis all falls into the utility model discloses within the protection scope.

Claims

1. The utility model provides a waste gas purification device on fume chamber is used in laboratory which characterized in that: comprises a shell (1), a blower (2), a waste gas inlet (3), a plurality of filler supporting layers (4), a water tank (5), a water pump (6), a flow meter (7), a conveying conduit group (8), a plurality of atomizing nozzles (9), a plurality of filler openings (10), an exhaust pipe (11), a first fan blade group (12) and a demister (13), wherein the waste gas inlet (3) is arranged at the lower end of the outer end surface at the left side of the shell (1), an air outlet of the blower (2) is connected to the waste gas inlet (3), an air inlet is connected to an air inlet of a cabinet body, two clapboards are arranged in the inner cavity of the shell (1), the first fan blade group (12) is arranged between the two clapboards, the plurality of filler supporting layers (4) are all arranged in a cavity formed between the two clapboards and the inner walls at the two sides of the shell (1), the water tank (5) is arranged at the lower end at the right side of the shell (1) and is communicated with the inner cavity of the shell (1), water pump (6) is arranged on basin (5), the end intercommunication aqua storage tank absorbs water, delivery pipe group (8) distribute in the top of each filler supporting layer (4) and are connected with the play water end of water pump (6), flowmeter (7) set up the delivery port department at water pump (6), a plurality of atomizer (9) set up on the pipeline section that is located filler supporting layer (4) top delivery pipe group (8), the position that a plurality of filler mouths (10) correspond every filler supporting layer (4) is seted up on the shell, blast pipe (11) are seted up at shell (1) top and are communicated with each other with shell (1) inner chamber, with basin (5) same side, defroster (13) set up in shell (1), be located the below of blast pipe (11).

2. The exhaust gas purification device on the laboratory fume hood according to claim 1, wherein: two upper and lower flange edges of a left side baffle in the shell (1) are disconnected with the upper and lower cavity walls of the inner cavity of the shell (1), the upper flange edge of the right side baffle is connected with the upper cavity wall of the inner cavity of the shell (1), the lower flange edge is disconnected with the lower cavity wall of the shell (1), and the distance between the lower flange edge of the left side baffle and the lower cavity wall of the inner cavity of the shell (1) is one third of the disconnection distance between the lower flange edge of the right side baffle and the lower cavity wall of the shell (1).

3. The exhaust gas purification device on the laboratory fume hood according to claim 1, wherein: the position that waste gas entry (3) was seted up is less than homonymy below filler supporting layer (4), and the outer end interface slope of waste gas entry (3) sets up on shell (1) lateral wall.

4. The exhaust gas purification device on the laboratory fume hood according to claim 1, wherein: the conveying guide pipe group (8) comprises a main guide pipe (81) and three groups of branch flow pipes (82), one end of each branch flow pipe (82) is communicated with the main guide pipe, the other end of each branch flow pipe penetrates through the shell wall of the shell (1) and the two baffle plates and is arranged above each filler supporting layer (4), and the guide pipes are made of metal materials.

5. The exhaust gas purification device on the laboratory fume hood according to claim 1, wherein: the filling opening (10) is provided with a sealing window (10-1), and the middle of the sealing window (10-1) is made of transparent materials.

6. The exhaust gas purification device on the laboratory fume hood according to claim 1, wherein: the water pump (6) and the conveying pipe group (8) are connected together through a three-way valve (61), and the other end of the three-way valve (61) is connected with a water outlet pipe.

7. The exhaust purification device on a laboratory fume hood according to claim 1, wherein: the top of the water tank (5) avoids the water pump (6) and is provided with a water notch.

8. The exhaust gas purification device on the laboratory fume hood according to claim 1, wherein: the first fan blade group (12) comprises a first motor (121) and first fan blades (122), the first fan blades (122) are erected in an inner cavity of the shell (1) and located between the two partition plates, one end of an erecting rotating shaft of the first fan blades (122) penetrates through the wall of the shell (1), and a rotor of the first motor (121) is connected with one end extending out of the shell (1) to drive the first fan blades (122) to rotate clockwise.

9. The exhaust gas purification device on the laboratory fume hood according to claim 1, wherein: blast pipe (11) are the three-way pipe, shell (1) inner chamber is connected respectively to three opening, it is indoor and outdoor, it is equipped with second flabellum group (14) to connect indoor through hole department, second flabellum group (14) include second motor (141) and second flabellum (142), second flabellum (142) are erect in the through hole, the opening wall body is worn out to the pivot one end of erectting of second flabellum (142), second motor (141) rotor is connected with the pivot of erectting that stretches out the opening wall body, drive second flabellum (142) clockwise rotation.