CN112718772A - Be applicable to laboratory fume cupboard waste fitting discharging - Google Patents
Be applicable to laboratory fume cupboard waste fitting discharging Download PDFInfo
- Publication number
- CN112718772A CN112718772A CN202110112375.7A CN202110112375A CN112718772A CN 112718772 A CN112718772 A CN 112718772A CN 202110112375 A CN202110112375 A CN 202110112375A CN 112718772 A CN112718772 A CN 112718772A
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- CN
- China
- Prior art keywords
- adsorption tank
- fume hood
- pipe
- adsorption
- heat exchanger
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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.)
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a blowdown device suitable for a laboratory fume hood, which belongs to the technical field of fume hoods and comprises a base, wherein the bottom of the base is fixedly connected with a displacement mechanism, the top of the base is sequentially provided with an adsorption tank a, an adsorption tank b, a catalytic combustor and a gas heat exchanger, the input end of the adsorption tank a and the input end of the adsorption tank b are respectively connected with a toxic gas input pipe through a connecting pipe a, the output end of the adsorption tank a and the output end of the adsorption tank b are respectively connected with an adsorption output pipe through a connecting pipe b, and control valves are respectively arranged on the connecting pipe a and the connecting pipe b. In the invention, the roller wheels are arranged at the bottom of the base of the laboratory fume hood sewage discharge device, so that the laboratory fume hood sewage discharge device can move conveniently; this laboratory fume hood waste fitting discharging mainly includes adsorption tank a, adsorption tank b, catalytic combustor and gas heat exchanger, constitutes simple structure, and this laboratory fume hood waste fitting discharging's is small, convenient transportation.
Description
Technical Field
The invention relates to the technical field of fume hoods, in particular to a blowdown device suitable for a fume hood in a laboratory.
Background
A fume hood, also known as a fume hood or fume hood, is a large piece of equipment in laboratories, particularly chemical laboratories. The purpose is to reduce the contact between experimenters and harmful gases. Complete insulation requires the use of a glove box. Fume hoods are primary barriers to protect personnel from toxic chemical fumes. The device can be used as an important safety backup device, such as a device which can effectively discharge harmful gas when chemical smoke, dust and toxic gas are generated during the failure of a chemical experiment process, and protect the environment of workers and a laboratory. The existing laboratory fume hood pollution discharge device has the defects of complex composition structure, large volume, adsorption only through a single activated carbon device, incapability of continuously using the pollution discharge device if the inside activated carbon of the inside activated carbon device is replaced, and in addition, the gas temperature after the pollution discharge device is treated through the existing laboratory fume hood pollution discharge device is higher, and the direct discharge can cause the waste of heat energy.
To this end, we propose a blowdown apparatus suitable for a laboratory fume hood to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a blowdown device suitable for a laboratory fume hood.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a be applicable to laboratory fume cupboard waste fitting discharging, includes the base, the bottom fixedly connected with displacement mechanism of base, the top of base has set gradually adsorption tank an, adsorption tank b, catalytic combustor and gas heat exchanger, adsorption tank an's input and adsorption tank b's input all are connected with the poison gas input tube through connecting pipe a, adsorption tank a's output and adsorption tank b's output all are connected with the absorption output tube through connecting pipe b, all install the control valve on connecting pipe an and the connecting pipe b, the one end of absorption output tube is connected with one of them input of catalytic combustor, catalytic combustor's output passes through connecting pipe c and is connected with one of them input of gas heat exchanger, exhaust pipe is installed to gas heat exchanger's output.
Preferably, the displacement mechanism comprises four rollers fixedly connected to the bottom of the base.
Preferably, the number of the control valves on the connecting pipe a and the number of the control valves on the connecting pipe b are both two.
Preferably, the top of base is installed the dustcoat, adsorption tank a, adsorption tank b, catalytic combustor and gas heat exchanger all are located the dustcoat, be provided with on the dustcoat with poison gas input tube and exhaust duct corresponding through-hole a.
Preferably, an air input pipe is installed at another input end of the air heat exchanger, another output end of the air heat exchanger is connected with another input end of the catalytic combustor through a connecting pipe d, the input end of the air heat exchanger connecting the air input pipe is arranged corresponding to the output end of the air heat exchanger connecting the connecting pipe d, and a through hole b corresponding to the air input pipe is arranged on the outer casing.
Preferably, an access door is mounted on the outer casing.
Preferably, a pressure increasing box is installed at the top of the outer casing and is installed on the adsorption output pipe, and an exhaust fan is installed in the pressure increasing box.
Preferably, activated carbon is arranged in the adsorption tank a and the adsorption tank b.
Preferably, the inner top of the adsorption tank a and the inner top of the adsorption tank b are both fixedly connected with a fixing plate, and the length of the fixing plate is smaller than the height of the adsorption tank a and the height of the adsorption tank b.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1. compared with the prior art, the roller wheels are arranged at the bottom of the base of the laboratory fume hood sewage draining device, so that the laboratory fume hood sewage draining device can move conveniently;
2. compared with the prior art, the laboratory fume hood sewage draining device mainly comprises an adsorption box a, an adsorption box b, a catalytic combustor and a gas heat exchanger, and is simple in structure, small in size and convenient to transport;
3. compared with the prior art, when toxic gas is adsorbed by the laboratory fume hood sewage draining device, the toxic gas is simultaneously adsorbed by the adsorption tank a and the adsorption tank b, and the two control valves are respectively arranged on the connecting pipe a and the connecting pipe b, so that the normal use of the laboratory fume hood sewage draining device is still not influenced even when the active carbon in one adsorption tank is replaced, in addition, the toxic gas in the adsorption tank a or the adsorption tank b is not leaked when the adsorption tank a or the adsorption tank b is replaced, and the safety is superior to that of the existing laboratory fume hood sewage draining device;
4. compared with the prior art, the temperature of the gas discharged by the laboratory fume hood blowdown device is cooled by the gas heat exchanger, and the air entering the catalytic combustor is heated by the gas heat exchanger, so that the waste of heat is avoided, and the cost of the catalytic combustor for toxic gas catalytic combustion is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a blowdown apparatus for a laboratory fume hood in accordance with the present invention;
FIG. 2 is a schematic diagram of an internal structure of a blowdown apparatus for a laboratory fume hood in accordance with the present invention;
fig. 3 is a schematic view of a connection structure of an adsorption tank a, activated carbon, a fixing plate, a connecting pipe a, a connecting pipe b and a control valve in a blowdown apparatus for a laboratory fume hood according to the present invention;
fig. 4 is a schematic view of a connection structure of a pressure increasing box, an exhaust fan and an adsorption output pipe in a blowdown apparatus for a laboratory fume hood according to the present invention.
In the figure: 1. a base; 2. a roller; 3. an outer casing; 4. an adsorption tank a; 5. an adsorption tank b; 6. a toxic gas input pipe; 7. a connecting pipe a; 8. an adsorption output pipe; 9. a connecting pipe b; 10. a control valve; 11. a pressurizing box; 12. a connecting pipe c; 13. a catalytic combustor; 14. a gas heat exchanger; 15. a discharge conduit; 16. an air input pipe; 17. a connecting pipe d; 18. activated carbon; 19. a fixing plate; 20. an exhaust fan; 21. an access door.
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.
Referring to fig. 1-4, a blowdown apparatus suitable for a laboratory fume hood comprises a base 1, wherein a displacement mechanism is fixedly connected to the bottom of the base 1, an adsorption tank a4, an adsorption tank b5, a catalytic combustor 13 and a gas heat exchanger 14 are sequentially arranged at the top of the base 1, an input end of an adsorption tank a4 and an input end of the adsorption tank b5 are connected with a toxic gas input pipe 6 through a connecting pipe a7, an output end of an adsorption tank a4 and an output end of an adsorption tank b5 are connected with an adsorption output pipe 8 through a connecting pipe b9, control valves 10 are respectively installed on the connecting pipe a7 and the connecting pipe b9, one end of the adsorption output pipe 8 is connected with one of the input ends of the catalytic combustor 13, an output end of the catalytic combustor 13 is connected with one of the input ends of the gas heat exchanger 14 through a connecting pipe c12, and an output end of.
The adsorption box a4 and the adsorption box b5 are used for adsorbing toxic gas by the activated carbon 18.
The catalytic combustor 13 is used for catalytically combusting toxic gas adsorbed by the activated carbon 18, and converting the toxic gas into air which is harmless to chemical substances and discharging the air.
The air heat exchanger 14 is used for cooling the air after catalytic combustion, and simultaneously heating the air entering the catalytic combustor 13, so that energy consumed by the catalytic combustor 13 for heating the air entering from the outside is reduced.
More specifically, the displacement mechanism comprises four rollers 2 fixedly attached to the bottom of the base 1.
It should be noted that the two rollers 2 located on the same side are universal wheels and have self-locking function.
More specifically, the number of the control valves 10 on the connection pipe a7 and the number of the control valves 10 on the connection pipe b9 are both two.
The number of control valves 10 on connection pipe a7 and connection pipe b9 is two, so as to facilitate replacement of adsorption tank a4 or adsorption tank b5, and to prevent toxic gas adsorbed by activated carbon 18 from being discharged from adsorption tank a4 or adsorption tank b5 when replacement of adsorption tank a4 or adsorption tank b5 is performed.
More specifically, the outer casing 3 is installed on the top of the base 1, the adsorption tank a4, the adsorption tank b5, the catalytic burner 13 and the gas heat exchanger 14 are all located in the outer casing 3, and the outer casing 3 is provided with a through hole a corresponding to the toxic gas input pipe 6 and the exhaust pipe 15.
The outer housing 3 can play a role in protection, and workers in a laboratory are prevented from being scalded.
More specifically, an air input pipe 16 is installed at the other input end of the air heat exchanger 14, the other output end of the air heat exchanger 14 is connected to the other input end of the catalytic combustor 13 through a connection pipe d17, the input end of the air heat exchanger 14 connected to the air input pipe 16 is disposed to correspond to the output end of the air heat exchanger 14 connected to the connection pipe d17, and a through hole b corresponding to the air input pipe 16 is disposed on the outer casing 3.
The gas after burning through the catalytic combustor 13 is cooled through the gas heat exchanger 14 again, heats the air entering the inside of the catalytic combustor 13 through the gas heat exchanger 14 simultaneously, avoids the waste of heat, and reduces the cost of the catalytic combustor 13 required for the catalytic combustion of toxic gas.
More specifically, the outer casing 3 has an access door 21 mounted thereon.
More specifically, a pressure increasing tank 11 is installed at the inner top of the outer casing 3, the pressure increasing tank 11 is installed on the adsorption output pipe 8, and an exhaust fan 20 is installed in the pressure increasing tank 11.
The pressure increasing box 11 is used for accelerating the speed of toxic gas adsorption treatment through the adsorption box a4 and the adsorption box b5 and improving the toxic gas treatment effect.
More specifically, activated carbon 18 is provided in both adsorption tank a4 and adsorption tank b 5.
More specifically, fixing plate 19 is fixedly connected to both the inner top of suction box a4 and the inner top of suction box b5, and the length of fixing plate 19 is smaller than the height of suction box a4 and the height of suction box b 5.
The bottom of fixing plate 19 does not contact with the inner bottom of adsorption tank a4 and adsorption tank b5, and fixing plate 19 is spaced from the inner bottom of adsorption tank a4 and adsorption tank b5, so that a certain amount of activated carbon 18 adsorption treatment is required when toxic gas enters adsorption tank a4 or adsorption tank b 5.
According to the invention, toxic gas in a laboratory fume hood enters an adsorption box a4 and an adsorption box b5 through a toxic gas input pipe 6 respectively, after adsorption treatment is carried out on activated carbon 18 in an adsorption box a4 and an adsorption box b5, the toxic gas is input into a catalytic combustor 13 through an adsorption output pipe 8 to be catalytically combusted, the toxic gas is converted into air without chemical substances, the air is cooled through a gas heat exchanger 14 and then is discharged into the air, the air enters the interior of the catalytic combustor 13 after being preheated through the gas heat exchanger 14, and sufficient oxygen is provided for catalytic combustion of the adsorbed toxic gas by the catalytic combustor 13. The laboratory fume hood pollution discharge device mainly comprises an adsorption box a4, an adsorption box b5, a catalytic combustor 13 and a gas heat exchanger 14, and is simple in structure, small in size and convenient to transport; in addition, the temperature of the gas discharged by the laboratory fume hood blowdown device is cooled by the gas heat exchanger 14, and the air entering the catalytic combustor 13 is heated by the gas heat exchanger 14, so that the waste of heat is avoided, and the cost of catalytic combustion of toxic gas by the catalytic combustor 13 is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides a be applicable to laboratory fume cupboard waste fitting discharging, includes base (1), its characterized in that, the bottom fixedly connected with displacement mechanism of base (1), the top of base (1) has set gradually adsorption tank a (4), adsorption tank b (5), catalytic combustor (13) and gas heat exchanger (14), the input of adsorption tank a (4) and the input of adsorption tank b (5) all are connected with poison gas input tube (6) through connecting pipe a (7), the output of adsorption tank a (4) and the output of adsorption tank b (5) all are connected with adsorption output tube (8) through connecting pipe b (9), all install control valve (10) on connecting pipe a (7) and connecting pipe b (9), the one end of adsorption output tube (8) is connected with one of them input of catalytic combustor (13), the output end of the catalytic combustor (13) is connected with one input end of the gas heat exchanger (14) through a connecting pipe c (12), and the output end of the gas heat exchanger (14) is provided with a discharge pipeline (15).
2. A laboratory fume hood waste fitting according to claim 1 characterized by the fact that the displacement mechanism comprises four rollers (2) fixedly attached to the bottom of the base (1).
3. A laboratory fume hood waste fitting according to claim 1 characterized by the fact that the number of control valves (10) on connection pipe a (7) and the number of control valves (10) on connection pipe b (9) are both two.
4. The blowdown device for the laboratory fume hood according to claim 1, wherein an outer casing (3) is installed on the top of the base (1), the adsorption tank a (4), the adsorption tank b (5), the catalytic burner (13) and the gas heat exchanger (14) are all located in the outer casing (3), and the outer casing (3) is provided with a through hole a corresponding to the toxic gas input pipe (6) and the exhaust pipe (15).
5. A laboratory fume hood waste fitting according to claim 4, characterized in that the other input end of the air heat exchanger (14) is provided with an air input pipe (16), the other output end of the air heat exchanger (14) is connected with the other input end of the catalytic burner (13) through a connecting pipe d (17), the input end of the air heat exchanger (14) connecting air input pipe (16) is arranged corresponding to the output end of the connecting pipe d (17) connecting the air heat exchanger (14), and the outer casing (3) is provided with a through opening b corresponding to the air input pipe (16).
6. A waste fitting for a laboratory fume hood according to claim 4, characterized in that the outer casing (3) is fitted with an access door (21).
7. A waste fitting for a laboratory fume hood according to claim 4, characterized in that the inner top of the outer casing (3) is fitted with a plenum box (11), the plenum box (11) being fitted on the sorption outlet pipe (8), the plenum box (11) being fitted with an extraction fan (20).
8. A waste fitting for a laboratory fume hood according to claim 1, characterized in that activated carbon (18) is provided in both the adsorption box a (4) and the adsorption box b (5).
9. The blowdown device for the laboratory fume hood according to claim 8, wherein a fixing plate (19) is fixedly connected to each of the inner top of the adsorption tank a (4) and the inner top of the adsorption tank b (5), and the length of the fixing plate (19) is less than the height of the adsorption tank a (4) and the height of the adsorption tank b (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110112375.7A CN112718772A (en) | 2021-01-27 | 2021-01-27 | Be applicable to laboratory fume cupboard waste fitting discharging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110112375.7A CN112718772A (en) | 2021-01-27 | 2021-01-27 | Be applicable to laboratory fume cupboard waste fitting discharging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112718772A true CN112718772A (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110112375.7A Pending CN112718772A (en) | 2021-01-27 | 2021-01-27 | Be applicable to laboratory fume cupboard waste fitting discharging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112718772A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202478779U (en) * | 2012-02-28 | 2012-10-10 | 苏州乔尼设备工程有限公司 | System device for treating organic waste gas by adsorption-catalytic combustion |
| CN203908339U (en) * | 2014-06-11 | 2014-10-29 | 北京和信同通科技发展有限公司 | Waste gas treatment device |
| KR101574682B1 (en) * | 2015-03-23 | 2015-12-11 | 주식회사씨애치씨랩 | Fume hood system for laboratory with indoor suction and exhaust |
| CN205782992U (en) * | 2016-07-01 | 2016-12-07 | 广州紫科环保科技股份有限公司 | A kind of organic waste gas treatment device |
| CN208662082U (en) * | 2018-07-02 | 2019-03-29 | 天津联创环境保护监测有限公司 | A kind of ventilating system of fuming cupboard |
| CN209753636U (en) * | 2019-04-03 | 2019-12-10 | 湖南环境生物职业技术学院 | Fume hood for molecular biology experiments |
-
2021
- 2021-01-27 CN CN202110112375.7A patent/CN112718772A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202478779U (en) * | 2012-02-28 | 2012-10-10 | 苏州乔尼设备工程有限公司 | System device for treating organic waste gas by adsorption-catalytic combustion |
| CN203908339U (en) * | 2014-06-11 | 2014-10-29 | 北京和信同通科技发展有限公司 | Waste gas treatment device |
| KR101574682B1 (en) * | 2015-03-23 | 2015-12-11 | 주식회사씨애치씨랩 | Fume hood system for laboratory with indoor suction and exhaust |
| CN205782992U (en) * | 2016-07-01 | 2016-12-07 | 广州紫科环保科技股份有限公司 | A kind of organic waste gas treatment device |
| CN208662082U (en) * | 2018-07-02 | 2019-03-29 | 天津联创环境保护监测有限公司 | A kind of ventilating system of fuming cupboard |
| CN209753636U (en) * | 2019-04-03 | 2019-12-10 | 湖南环境生物职业技术学院 | Fume hood for molecular biology experiments |
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| PB01 | Publication | ||
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Application publication date: 20210430 |