CN211585818U

CN211585818U - A high-efficient exhaust treatment device for laboratory

Info

Publication number: CN211585818U
Application number: CN201921555104.3U
Authority: CN
Inventors: 杨静
Original assignee: Suzhou Huihua Construction Engineering Co ltd
Current assignee: Suzhou Huihua Construction Engineering Co ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-09-29
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses a high-efficient exhaust treatment device for laboratory, including the casing, be provided with the air intake of intercommunication laboratory and exhaust gas's air outlet on the casing. A water storage chamber, a spray chamber and a filter chamber which are arranged above the water storage chamber side by side are arranged in the shell; the water storage chamber is filled with liquid; the upper end of the spray chamber is communicated with the air inlet, a spray chamber outlet which is communicated with the spray chamber and the water storage chamber is arranged below the spray chamber, a plurality of spray nozzles are arranged above the spray chamber, and the liquid in the water storage chamber is communicated with the spray nozzles through a water circulating device; the lower end of the filtering chamber is provided with a connector communicated with the water storage chamber and the filtering chamber, an activated carbon filtering screen, a micro-filtration membrane filter and an ultraviolet lamp are arranged in the filtering chamber from bottom to top, an air outlet is arranged at the top end of the filtering chamber, and an exhaust fan is arranged at the air outlet. The high-efficiency treatment of the waste gas of the laboratory is realized, and the pure air discharged from the laboratory is ensured.

Description

A high-efficient exhaust treatment device for laboratory

Technical Field

The utility model relates to a laboratory paraphernalia, in particular to a high-efficient exhaust treatment device for laboratory.

Background

The laboratory is a place where personnel carry out experimental analysis or production processing, various chemical reagent kit medicines can be used in the experimental analysis process and the production processing, the reagents and the medicines can often volatilize toxic and harmful gases, and various chemical reactions in the experimental process can also generate waste gas; the sources of the exhaust gas mainly include reagent and sample volatiles, intermediate products of the analysis process, standard and carrier gases for leaks and evacuation, etc. In recent years, pollution of laboratories is becoming more serious, wherein the problem of exhaust pollution is getting more attention, and if the pollution is not treated or not treated properly, the pollution not only affects the working environment and the health of experimenters, but also affects the living environment of surrounding residents seriously. However, in some existing laboratory waste gas treatment methods, a large centrifugal fan needs to be installed on the roof, the fume hood is connected with the centrifugal fan through an exhaust pipe, waste gas generated during a test is exhausted through the centrifugal fan, more fume hoods are directly exhausted, pollutants are only transferred to the outdoor environment, the surrounding environment is polluted, the health of residents is affected, and the waste gas cannot be filtered.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a high-efficiency waste gas treatment device for a laboratory.

In order to achieve the above purpose, the utility model discloses a technical scheme is: a high-efficient exhaust treatment device for laboratory, which comprises a housin, be provided with the air intake of intercommunication laboratory and exhaust gas's air outlet on the casing, its characterized in that: a water storage chamber, a spraying chamber and a filtering chamber which are arranged above the water storage chamber side by side are arranged in the shell;

the water storage chamber is filled with liquid;

the upper end of the spray chamber is communicated with the air inlet, a spray chamber outlet which is communicated with the spray chamber and the water storage chamber is arranged below the spray chamber, a plurality of spray nozzles are arranged above the spray chamber, and the liquid in the water storage chamber is communicated with the spray nozzles through a water circulation device;

the filter chamber lower extreme is provided with the connector of intercommunication reservoir chamber and filter chamber, be provided with active carbon filter screen, micro-filtration membrane filter and ultraviolet lamp in the filter chamber from bottom to top, the air outlet sets up on the filter chamber top, air outlet department is provided with the air exhauster.

The beneficial effects of the utility model are that, laboratory waste gas gets into the spray room from the air intake, under the effect of air exhauster, through spray room, reservoir chamber and filter chamber in proper order, but the liquid cyclic utilization of storage in the reservoir chamber provides the spray liquid for the spray room, removes dust in the laboratory waste gas re-spray room, filters harmful gas through the filter chamber again, makes the clean pollution-free of gas after handling, has realized the high-efficient processing of waste gas.

Preferably, the water circulating device comprises a circulating water pipe communicated with liquid in the water storage chamber and the spray nozzle, and a water pump is arranged on the circulating water pipe and fixed on the shell.

Preferably, in order to prevent the stainless steel nozzle from being blocked, a filter screen is arranged at the connecting end of the circulating water pipe and the water storage chamber.

Preferably, a plurality of upper partition plates and lower partition plates are arranged in the spray chamber, the upper ends of the upper partition plates are fixed at the top end of the spray chamber, the lower partition plates are fixed at the bottom end of the spray chamber, the upper partition plates and the lower partition plates are arranged in a staggered mode, the spray chamber is divided into a plurality of spraying sections which are sequentially connected end to end, the air inlet is communicated with the leftmost spraying section, and the outlet of the spray chamber is communicated with the rightmost spraying section. Go up baffle and lower baffle and form S type air flue with spray room inner space, the extension waste gas is in the distance of spray room, and the extension is to the time of spraying of waste gas, reinforcing spray filter effect.

Preferably, in order to enable the sprayed accumulated liquid to pass through, the lower end of the lower partition plate is provided with a plurality of water through holes.

Preferably, the bottom of spray room sets up from air intake end to spray room exit end downward sloping, and inclination is less than 15, and the slope sets up, conveniently sprays the hydrops and passes through the spray room export and fall back to the reservoir chamber.

Preferably, each spraying interval top end is provided with a spraying nozzle.

Preferably, for making things convenient for the reservoir chamber to change the liquid in it, the reservoir chamber still communicates has inlet tube and outlet pipe, the outside liquid source of inlet tube connection, the outlet pipe sets up in the play water room bottom, outlet pipe and outlet pipe department are provided with the valve.

Preferably, the activated carbon filter screen, the microfiltration membrane filter and the ultraviolet lamp are detachably arranged on the inner wall of the filter chamber, so that the activated carbon filter screen, the microfiltration membrane filter and the ultraviolet lamp can be replaced and cleaned conveniently.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

fig. 2 is a schematic structural view of the shower chamber in this embodiment.

In the figure:

the device comprises a shell 1, an air inlet 2, an air outlet 3, a water storage chamber 4, a spray chamber 5, a filter chamber 6, a spray chamber outlet 7, a spray nozzle 8, a water circulating device 9, a circulating water pipe 9a, a water pump 9b, a connector 10, an activated carbon filter screen 11, a microfiltration membrane filter 12, an ultraviolet lamp 13, an exhaust fan 14, an upper partition 15a, a lower partition 15b, a water through hole 16, a water inlet pipe 17a, a water outlet pipe 17b and a valve 18.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1, the high-efficiency waste gas treatment device for a laboratory in the embodiment includes a housing 1, an air inlet 2 communicating with the laboratory and an air outlet 3 discharging gas are provided on the housing 1, an exhaust fan 14 is provided at the air outlet 3, and laboratory waste gas enters from the air inlet 2 and is discharged from the air outlet 3 under the action of the exhaust fan 14. A water storage chamber 4, a spraying chamber 5 and a filtering chamber 6 which are arranged above the water storage chamber 4 side by side are arranged in the shell 1.

The water storage chamber 4 is filled with liquid, the upper end of the spray chamber 5 is communicated with the air inlet 2, and a spray chamber outlet 7 communicated with the spray chamber 5 and the water storage chamber 4 is arranged below the spray chamber 5. A plurality of spray nozzles 8 are arranged above the spray chamber 5, and the liquid in the water storage chamber 4 is communicated with the spray nozzles 8 through a water circulating device 9. The liquid can be clear water or a neutralizing liquid provided according to the acid-base degree of laboratory waste gas. The water circulating device 9 comprises a circulating water pipe 9a for communicating liquid in the water storage chamber 4 with the spray nozzle 8, a water pump 9b is arranged on the circulating water pipe 9a, and the water pump 9b is fixed on the shell 1. In order to prevent the spray nozzle 8 from being blocked, a filter screen is arranged at the connecting end of the circulating water pipe 9b and the water storage chamber 4, and the sediment in the liquid in the water storage chamber 4 is filtered by the filter screen. The water storage chamber 4 is filled with liquid, and the upper surface of the liquid is lower than the bottom surface of the spray chamber 5, so that the liquid in the water storage chamber 4 cannot flow back to the spray chamber. The water pump 9b works to convey the liquid in the water storage chamber 4 to the spray nozzle 8 through the circulating water pipe 9a, and the water mist is sprayed out from the spray nozzle 8 to remove dust of the waste gas entering the spray chamber, and the liquid can be neutralized and simultaneously the pH value of the waste gas is adjusted.

Referring to fig. 2, a plurality of upper partition plates 15a and lower partition plates 15b are disposed in the shower chamber 5, the upper ends of the upper partition plates 15a are fixed to the top end of the shower chamber 5, and the lower partition plates 15b are fixed to the bottom end of the shower chamber 5. The upper partition plates 15a and the lower partition plates 15b are arranged in a staggered mode, and the spray chamber 5 is divided into a plurality of spray intervals which are sequentially connected end to end. The upper partition plate 15a and the lower partition plate 15b are shown as one, so that the spray chamber 5 is divided into three spraying areas, and the effect of the plurality of upper partition plates 15a and the plurality of lower partition plates 15b is better. The air inlet 2 is communicated with the rightmost spraying region, and the outlet 7 of the spraying chamber is communicated with the leftmost spraying region. The upper partition plate 15a and the lower partition plate 15b form an S-shaped air passage in the inner space of the spray chamber 5, so that the distance of waste gas in the spray chamber 5 is prolonged, the spray time of the waste gas is prolonged, and the spray filtering effect is enhanced. For the convenience of the condensation of the water mist sprayed by the spray nozzle 8 into water drops which can quickly fall back to the water storage chamber 4, the lower end of the lower partition plate 15b is provided with a plurality of water through holes 16, the bottom end of the spray chamber 5 is downwards inclined from the air inlet 2 end to the spray chamber outlet 7 end, and the inclination angle is smaller than 15 degrees. The top end of each spraying section is provided with two spraying nozzles 8, and the number of the spraying nozzles 8 in each spraying section is shown in the figure.

The lower end of the filter chamber 6 is provided with a connecting port 10 for communicating the water storage chamber 4 with the filter chamber 6, and in order to prevent the liquid in the water storage chamber 4 from entering the filter chamber 6, the connecting port 10 is higher than the upper surface of the liquid in the water storage chamber 4. An active carbon filter screen 11, a micro-filtration membrane filter 12 and an ultraviolet lamp 13 are arranged in the filter chamber 6 from bottom to top. The activated carbon filter screen 11 is made by loading powdered activated carbon on polyurethane foam, has high-efficiency adsorption performance of activated carbon, and removes volatile organic compounds formaldehyde, toluene, hydrogen sulfide, chlorobenzene and pollutants in the air. The microfiltration membrane filter 12 comprises a plate-shaped intermetallic compound microfiltration membrane, the intermetallic compound microfiltration membrane comprises a titanium base and a porous material covered on the titanium base, and the surface layer of the titanium base is a nano titanium dioxide membrane which can intercept suspended matters, bacteria, colloid with large molecular weight and the like. The activated carbon filter screen 11, the micro-filtration membrane filter 12 and the ultraviolet lamp 13 are matched, and the filtering effect is good. The activated carbon filter screen 11, the microfiltration membrane filter 12 and the ultraviolet lamp 13 are detachably arranged on the inner wall of the filter chamber 6, so that the replacement and maintenance are convenient. The air outlet 3 is arranged at the top end of the filter chamber 6.

In order to facilitate the replacement of liquid in the water storage chamber, the water storage chamber 4 is also communicated with a water inlet pipe 17a and a water outlet pipe 17b, the water inlet pipe 17a is connected with an external liquid source, the water outlet pipe 17b is arranged at the bottom of the water storage chamber 4, and valves 18 are arranged on the water inlet pipe 17a and the water outlet pipe 17 b.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. A high-efficient exhaust treatment device for laboratory, including casing (1), be provided with air intake (2) and exhaust gas's air outlet (3) of intercommunication laboratory on casing (1), its characterized in that: a water storage chamber (4), a spray chamber (5) and a filter chamber (6) which are arranged above the water storage chamber (4) side by side are arranged in the shell (1);

the water storage chamber (4) is filled with liquid;

the upper end of the spray chamber (5) is communicated with the air inlet (2), a spray chamber outlet (7) which is communicated with the spray chamber (5) and the water storage chamber (4) is arranged below the spray chamber (5), a plurality of spray nozzles (8) are arranged above the spray chamber (5), and liquid in the water storage chamber (4) is communicated with the spray nozzles (8) through a water circulating device (9);

filter chamber (6) lower extreme is provided with connector (10) of intercommunication reservoir chamber (4) and filter chamber (6), be provided with activated carbon filter screen (11), micro-filtration membrane filter (12) and ultraviolet lamp (13) from bottom to top in filter chamber (6), air outlet (3) set up on filter chamber (6) top, air outlet (3) department is provided with air exhauster (14).

2. The high efficiency exhaust gas treatment device for laboratory according to claim 1, wherein: the water circulation device (9) comprises a circulating water pipe (9a) communicated with liquid in the water storage chamber (4) and the spray nozzle (8), a water pump (9b) is arranged on the circulating water pipe (9a), and the water pump (9b) is fixed on the shell (1).

3. The high efficiency exhaust gas treatment device for laboratory according to claim 2, wherein: and a filter screen is arranged at the connecting end of the circulating water pipe (9a) and the water storage chamber (4).

4. The high efficiency exhaust gas treatment device for laboratory according to claim 1, wherein: the improved spraying device is characterized in that a plurality of upper partition plates (15a) and lower partition plates (15b) are arranged in the spraying chamber (5), the upper ends of the upper partition plates (15a) are fixed to the top end of the spraying chamber (5), the lower partition plates (15b) are fixed to the bottom end of the spraying chamber (5), the upper partition plates (15a) and the lower partition plates (15b) are arranged in a staggered mode, the spraying chamber (5) is divided into a plurality of spraying sections which are sequentially connected end to end, the air inlet (2) is communicated with the rightmost spraying section, and the outlet (7) of the spraying chamber is communicated with the leftmost spraying section.

5. The high efficiency exhaust gas treatment device for laboratory according to claim 4, wherein: the lower end of the lower partition plate (15b) is provided with a plurality of water through holes (16).

6. The high efficiency exhaust gas treatment device for laboratory according to claim 4, wherein: the bottom end of the spray chamber (5) is downwards inclined from the air inlet (2) end to the spray chamber outlet (7) end, and the inclination angle is smaller than 15 degrees.

7. The high efficiency exhaust gas treatment device for laboratory according to claim 4, wherein: each spraying interval top is provided with a spraying nozzle (8).

8. The high efficiency exhaust gas treatment device for laboratory according to claim 1, wherein: the water storage chamber (4) is further communicated with a water inlet pipe (17a) and a water outlet pipe (17b), the water inlet pipe (17a) is connected with an external liquid source, the water outlet pipe (17b) is arranged at the bottom of the water storage chamber (4), and valves (18) are arranged on the water inlet pipe (17a) and the water outlet pipe (17 b).

9. The high efficiency exhaust gas treatment device for laboratory according to claim 1, wherein: the activated carbon filter screen (11), the micro-filtration membrane filter (12) and the ultraviolet lamp (13) are detachably arranged on the inner wall of the filter chamber (6).