CN213610678U

CN213610678U - Waste gas treatment system suitable for laboratory

Info

Publication number: CN213610678U
Application number: CN202021553632.8U
Authority: CN
Inventors: 谷刚
Original assignee: SICHUAN MEILIFANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Current assignee: SICHUAN MEILIFANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-07-06
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a waste gas treatment system suitable for laboratory, including installing the induction port that is used for waste gas to collect in the laboratory, the induction port has connected gradually spray column, UV photodissociation device, active carbon device and draught fan through the tuber pipe, install the air exhauster on the tuber pipe, the inlet and the liquid outlet of spray column pass through the pipe connection circulation pond, install the water pump on the pipeline of being connected with the inlet; the water pump, the exhaust fan and the induced draft fan are connected with a speed regulation frequency converter, and the speed regulation frequency converter is connected with a controller. The utility model collects the gas in the laboratory through the air suction port, and can treat the acid mist in the gas through the spray tower and the alkali liquor; treating odor in the gas through a UV photolysis purifier to oxidize and combine pollutant molecules in a free state and ozone into small-molecule harmless or low-harm compounds; and finally, the active carbon device is used for adsorbing the main pollutants such as volatile organic compounds, hydrogen sulfide, ammonia gas, thiols and the like, and various foul odors.

Description

Waste gas treatment system suitable for laboratory

Technical Field

The utility model belongs to the technical field of exhaust-gas treatment, concretely relates to exhaust-gas treatment system suitable for laboratory.

Background

Laboratories such as XRF laboratories, high temperature chambers, intergranular corrosion chambers, chemical laboratory analyzers, colorimeter chambers, ICP chambers, and bump laboratories are provided in chemical plants, and in the physicochemical inspection processes of each laboratory, volatile acids such as nitric acid, hydrochloric acid, sulfuric acid, and formic acid are used. As for the volatile substances, a small amount of exhaust gas, hot air, acid mist, and the like are generated in a room. In order to avoid the harm to the human body, the waste gas generated in the laboratory enters the exhaust pipe through mechanical forced draft, and is discharged after being collected and treated in a unified manner.

Disclosure of Invention

An object of the utility model is to provide a waste gas treatment system suitable for laboratory, this system can unify the collection to the gas in the laboratory and handle and make it reach qualified emission.

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

a waste gas treatment system suitable for a laboratory comprises an air suction port which is arranged in the laboratory and used for collecting waste gas, wherein the air suction port is sequentially connected with a spray tower, a UV photolysis device, an activated carbon device and an induced draft fan through an air pipe, the air draft fan is arranged on the air pipe, a liquid inlet and a liquid outlet of the spray tower are connected with a sodium hydroxide solution circulating pool with the concentration of 10% through pipelines, and a water pump is arranged on a pipeline connected with the liquid inlet; the water pump, the exhaust fan and the induced draft fan are connected with a speed regulation frequency converter, and the speed regulation frequency converter is connected with a controller.

Furthermore, a layer of anti-rust primer is attached to the inner wall of the air pipe.

Furthermore, the branch pipe comprises a main pipe and a plurality of auxiliary pipes, the main pipe is communicated with the plurality of auxiliary pipes, and the auxiliary pipes are connected with the air suction port.

Furthermore, a manual regulating valve is installed on the auxiliary pipe, and an exhaust fan is installed on the main pipe.

Further, spray column, UV photodissociation device, active carbon device and draught fan are installed at laboratory roof.

The utility model discloses following beneficial effect has:

(1) the gas in the laboratory is collected through the air suction port, and inorganic waste gas, acid mist and the like in the gas can be treated through the spray tower and alkali liquor; treating odor in the gas through a UV photolysis purifier to oxidize and combine pollutant molecules in a free state and ozone into small-molecule harmless or low-harm compounds; finally, the active carbon device is used for adsorbing and efficiently removing main pollutants such as Volatile Organic Compounds (VOCs), inorganic matters, hydrogen sulfide, ammonia gas, thiols and the like and various malodorous gases;

(2) the remote control is realized by arranging a controller, a variable-frequency speed regulator and the like, and the components of the draught fan and the draught fan are adjusted according to the area in a laboratory and the use condition, the maximum component of the utility model is 10000m 3/h;

(3) simple structure, reasonable design and low cost.

Drawings

Fig. 1 is a schematic view of the structural connection relationship of the present invention.

The labels in the figure are: 10. an air suction port; 11. a manual regulating valve; 20. an exhaust fan; 30. a spray tower; 31. A circulation tank; 32. a water pump; 40. a UV photolysis device; 50. an activated carbon device; 60. an induced draft fan; 70. And a controller.

Detailed Description

As shown in fig. 1, the system for treating waste gas in a laboratory provided by this embodiment is installed in a laboratory to collect and treat gas in the laboratory, and uniformly discharges the gas after the gas is qualified.

The waste gas treatment system suitable for the laboratory in the embodiment comprises an air suction opening, an air pipe, an exhaust fan 20, a spray tower 30, a UV photolysis device 40, an activated carbon device 50 and an induced draft fan 60; the inlet scoop is installed in the laboratory, mainly is located the laboratory roof, and its structure is big end down's cone structure, and the inlet scoop passes through the air intake connection of pipeline and spray column 30, because of the laboratory is more than one, just the inlet scoop is more than 1, and every inlet scoop is connected with the auxiliary pipe, and all auxiliary pipes all connect on 1 is responsible for, are responsible for and are connected with spray column 30, and the several auxiliary pipe constitutes the tuber pipe with being responsible for, all installs manual regulating valve 11 on every auxiliary pipe for adjust every laboratory inlet scoop, can manually close place inlet scoop under the condition of not using, do not influence the normal use of other laboratories again install air exhauster 20 on being responsible for, adjustable intake that gets into spray column 30, when front end inlet scoop quantity is more, adjust the intake, must the too much processing that causes of intake is not up to standard and is discharged in the atmosphere.

Spray column 30 adopts traditional spray column 30, and it includes air intake, air exit, inlet and liquid outlet, the air intake with be in charge of or be responsible for and be connected, its inlet and liquid outlet have a circulation tank 31 through water piping connection, it is 10% NaOH solution to have placed concentration in the circulation tank 31, install water pump 32 on the water pipe of being connected with the inlet, in the solution suction spray column 30 in with circulation tank 31 through water pump 32, rethread spray set sandblast and gaseous combination in the spray column 30, realize inorganic waste gas in the gas, processing such as acid mist, get back to in the circulation tank 31 through the liquid outlet at last, can give the unit that has dangerous waste disposal qualification after solution in the circulation tank 31 reaches the saturation and handle.

The air outlet of spray column 30 is connected with the air intake of UV photolysis device 40, and UV photolysis device 40 utilizes purpose-made high energy ozone UV ultraviolet ray beam irradiation foul gas and TiO2 photocatalysis, and the schizolysis foul gas is like: ammonia, trimethylamine, hydrogen sulfide, methylthio hydrogen, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide and styrene, sulfides H2S, VOCs, molecular bonds of benzene, toluene and xylene, so that pollutant molecules in a free state and ozone are oxidized and combined into small-molecule harmless or low-harm compounds, such as CO2, H2O and the like.

The air outlet of the UV photolysis device 40 is connected with the air inlet of the active carbon device 50, the active carbon device 50 can efficiently remove main pollutants such as Volatile Organic Compounds (VOCs), inorganic matters, hydrogen sulfide, ammonia gas and thiols and various malodorous smells, the VOCs removing efficiency can reach more than 80%, and the VOCs removing effect greatly exceeds the malodorous pollutant emission standard issued by the state in 1993 (GB 14554-93).

The air outlet of the active carbon device 50 is connected with a chimney through a pipeline, and the pipeline is provided with an induced draft fan 60, so that qualified gas to be treated is introduced into the chimney, and meanwhile, power is provided for the gas in the front-end device. The air volume selected by the exhaust fan 20 and the fan in the embodiment is at least 10000m3/h, for example, the air volume of the whole fan is 20000m 3/h.

The inner walls of the pipeline and the branch pipes are respectively adhered with a layer of antirust primer, so that the corrosion of acidic substances in waste gas is reduced, and the service life of the whole equipment is prolonged.

The spray tower 30, the UV photolysis device 40, the activated carbon device 50 and the induced draft fan 60 are all installed on the roof of the laboratory, and contribute to centralized management and help distinguish other equipment in the plant.

For realizing automated management, water pump 32, air exhauster 20 and draught fan 60 are connected with the speed governing converter, and the speed governing converter is connected with controller 70, can adjust the feed liquor volume or the intake of water pump 32, air exhauster 20 and draught fan 60 through the speed governing converter, controller 70 adopts PLC controller 70, specifically adopts the PLC controller 70 who adopts siemens S7-200, and this controller 70 is connected with large screen liquid crystal display and carries out human-computer interaction, and human-computer interaction device adopts the large screen liquid crystal touch display screen supporting with PLC controller 70, realizes human-computer interaction through this touch display screen, not only can look over the data of gathering, still can manage operating parameter.

The above is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and the utility model should be covered in the protection scope of the present invention.

Claims

1. An exhaust treatment system suitable for use in a laboratory, comprising: the device comprises an air suction port (10) which is arranged in a laboratory and used for collecting waste gas, wherein the air suction port (10) is sequentially connected with a spray tower (30), a UV photolysis device (40), an activated carbon device (50) and an induced draft fan (60) through an air pipe, the air pipe is provided with the induced draft fan (20), a liquid inlet and a liquid outlet of the spray tower (30) are connected with a circulating pool (31) through a pipeline, and a water pump (32) is arranged on the pipeline connected with the liquid inlet; the water pump (32), the exhaust fan (20) and the induced draft fan (60) are connected with a speed regulation frequency converter, and the speed regulation frequency converter is connected with a controller (70).

2. The laboratory adapted exhaust treatment system of claim 1, wherein: and a layer of antirust primer is attached to the inner wall of the air pipe.

3. The laboratory adapted exhaust treatment system of claim 1, wherein: the air pipe comprises a main pipe and auxiliary pipes, the main pipe is communicated with the auxiliary pipes, and the auxiliary pipes are connected with the air suction port (10).

4. The laboratory compatible exhaust treatment system of claim 3, wherein: the auxiliary pipe is provided with a manual regulating valve, and the exhaust fan (20) is arranged on the main pipe.

5. The laboratory adapted exhaust treatment system of claim 1, wherein: spray column (30), UV photolysis device (40), active carbon device (50) and draught fan (60) install at laboratory roof.