CN105311911B - Vent cabinet filter is used in one kind experiment - Google Patents

Abstract

The invention provides a fume hood filter device for experiments. One end of the filter box is provided with an air inlet, the other end of the filter box is provided with an exhaust port, and an acid absorption device, an alkali Absorption device, activated carbon adsorption device, ultraviolet sterilization device, spray washing device, gas drying device and gas detection device. The present invention can well control the exhaust gas within a safe range by setting multiple gas filtering devices, and can filter the gas evenly and thoroughly one by one by setting multiple sealing plates. The data of the device automatically feeds back and adjusts the concentration of the solution absorbed by the acid and alkali, so that the gas meets the requirements of safety and environmental protection. At the same time, a spray washing device can be installed to further process the gas effectively. Realize the effective treatment of experimental waste gas and meet the emission requirements of environmental protection.

Description

An experimental fume hood filter device

technical field

The invention relates to the technical field of experimental ventilation, in particular to a device with air purification and humidification functions, and belongs to the technical field of experimental air purification and treatment equipment.

Background technique

Laboratory fume hoods are an integral part of laboratory design. In order to prevent laboratory workers from inhaling some toxic, pathogenic or toxic chemical substances, the laboratory should have good ventilation. To avoid some vapors, gases and particles (smoke, soot, dust, etc.) Absorption, Contaminating substances must be removed using fume hoods, fume hoods or local ventilation. However, although the structure of the current fume hood is simple, the filtering effect on the experimental exhaust gas is poor, the filtration is not thorough, and the exhaust gas cannot be filtered to a safe state, which poses a certain threat to the environment.

Based on the above technical problems, the present invention provides an experimental fume hood filtering device, which has a reasonable structure. By setting multiple gas filtering devices, the exhaust gas can be well controlled within a safe range. By setting multiple sealing plates, It can evenly and thoroughly filter the gas one by one. At the same time, it is equipped with a detection device, which can automatically feedback and adjust the concentration of the solution absorbed by the acid and alkali according to the data of the detection device, so that the gas meets the requirements of safety and environmental protection. At the same time, it is equipped with a spray washing device , can effectively further process the gas, and the fume hood filter device of the present invention can best realize the effective treatment of the experimental waste gas and meet the emission requirements of environmental protection.

Contents of the invention

The purpose of the present invention is to provide a kind of structure and use simple and reasonable, cost is low, a kind of experimental fume hood filtering device with stable performance, long service life.

In order to achieve the above object, the present invention adopts the following technical solutions: a fume hood filtering device for experiments, which includes a cabinet, a rubbish placement box, a glass isolation door, an air suction cover, a deflector and a filter box, and is characterized in that the The above-mentioned cabinet is set against the wall, the bottom of the cabinet is provided with the garbage storage box, a glass isolation door is provided above the garbage storage box, and the suction hood is provided above the glass isolation door. , the above of the suction hood is provided with the deflector, the above of the deflector is connected with the filter box, one end of the filter box is provided with an air inlet, and the other end of the filter box is provided with There is an exhaust port, and an acid absorption device, an alkali absorption device, an activated carbon adsorption device, an ultraviolet sterilizing device, a spray washing device, a gas drying device and a gas detection device are sequentially arranged between the air inlet and the exhaust port.

Further, as a preference, a centrifugal fan is arranged in the casing of the air inlet end of the filter box, and a sealing plate 1 is arranged at the end of the centrifuge away from the air inlet, and the sealing plate is embedded in the casing of the casing. Inside, the sealing plate communicates with the acid absorbing device through a ventilation pipe, and the acid absorbing device communicates with the alkali absorbing device, wherein the acid absorbing device includes a regulating control valve, a quick joint, a liquid replenishing pipe and a pickling tank, and the The ventilation pipe of the sealing plate 1 extends into the pickling solution in the pickling tank, and the pickling tank is also connected to one side of the gas outlet pipe, and the other side of the gas outlet pipe is connected to the alkali cleaning tank. In the solution of the tank, the air outlet pipeline of the alkali cleaning tank extends into the sealing plate 2 and communicates with the photocatalyst absorption tank, and the acid cleaning tank is also connected with a liquid replenishment pipeline, and the liquid replenishment pipeline is provided with the quick joint, so An adjustment control valve is provided between the quick joint and the liquid replenishment pipeline, a sealing plate 3 is also provided on the gas outlet end of the photocatalyst absorption tank, and the activated carbon adsorption device is an activated carbon adsorption plate, and the activated carbon adsorption plate is arranged on the Between the sealing plate three and the sealing plate four, the ultraviolet sterilizing device is arranged between the sealing plate four and the sealing plate five, and the ultraviolet sterilizing device includes an ultraviolet generator and a titanium dioxide plate, and the ultraviolet generator is arranged on On the inner wall of the box shell, the titanium dioxide plate and the ultraviolet generator are vertically arranged, and the ventilation pipes at the five places of the sealing plate are communicated with the spray cleaning device, and the spray cleaning device includes a nozzle mounting plate and a plurality of spray heads, wherein the spray head mounting plate is installed and fixed on the inner wall of the box shell, the spray heads are arranged side by side on the spray head mounting plate, the gas drying box communicates with the spray cleaning device, the The gas detection box communicates with the gas drying box, and the gas detection box is provided with the exhaust port.

Further, preferably, there are at least three garbage storage boxes isolated from each other.

Further, preferably, at least a pH detection probe and a dust detection probe are arranged in the gas detection device.

Further, preferably, the suction hood is a conical structure with a small top and a large bottom.

Further, preferably, there are at least three titanium dioxide plates arranged at equal intervals.

Further, as a preference, the first sealing plate, the second sealing plate, the third sealing plate, the fourth sealing plate and the fifth sealing plate are all arranged on the inner wall of the box shell by means of embedding, and the embedding points are coated with sealant .

Further, as a preference, an auxiliary fan is provided at the exhaust port.

Further, preferably, the ventilation pipe is made of corrosion-resistant stainless steel pipe.

The beneficial effects of the present invention are:

An experimental fume hood filtering device provided by the present invention has a reasonable structure, and by setting multiple gas filtering devices, the waste gas can be well controlled within a safe range, and by setting a plurality of sealing plates, the gas can be evenly distributed, Thoroughly filter one by one. At the same time, the detection device is installed, which can automatically adjust the concentration of the solution absorbed by the acid and alkali according to the data of the detection device, so that the gas meets the requirements of safety and environmental protection. At the same time, the installation of the spray washing device can effectively further For gas treatment, the fume hood filter device of the present invention can best realize the effective treatment of experimental waste gas and meet the emission requirements of environmental protection.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of experimental fume hood filtering device of the present invention;

Fig. 2 is the internal structure schematic diagram of the filter box of a kind of experimental fume hood filtering device of the present invention;

Among them, 1. Cabinet body, 2. Garbage storage box, 3. Glass isolation door, 4. Suction hood, 5. Deflector, 6. Filter box, 7. Centrifugal fan, 8. Sealing plate 1, 9. Ventilation Pipeline, 10. Regulating control valve, 11. Quick connector, 12. Rehydration pipeline, 13. Pickling tank, 14. Alkaline cleaning tank, 15. Photocatalyst absorption tank, 16. Activated carbon adsorption plate, 17. Ultraviolet generator, 18, Titanium dioxide plate, 19, nozzle mounting plate, 20, nozzle, 21, gas drying box, 22, gas detection box, 23, exhaust port, 24. box shell, 25. air inlet, 26, sealing plate 2, 27 1. Sealing plate three, 28, sealing plate four, 29, sealing plate five.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings. However, it should be understood that the accompanying drawings are provided only for better understanding of the present invention, and they should not be construed as limiting the present invention.

As shown in Figure 1-2, the present invention provides a kind of experimental fume hood filtering device, and it comprises cabinet body 1, rubbish placement box 2, glass isolation door 3, suction hood 4, deflector 5 and filter box 6, It is characterized in that the cabinet body 1 is set against the wall, the bottom end of the cabinet body 1 is provided with the garbage storage box 2, and a glass isolation door 3 is arranged above the garbage storage box 2, and the glass insulation Above the door 3 is provided with the suction hood 4, above the suction hood 4 is provided with the deflector 5, the top of the deflector 5 communicates with the filter box 6, the filter box One end of 6 is provided with an air inlet 25, and the other end of the filter box is provided with an exhaust port 23, and between the air inlet 25 and the exhaust port 23, an acid absorption device, an alkali absorption device, Activated carbon adsorption device, ultraviolet sterilizing device, spray washing device, gas drying device and gas detection device.

In this embodiment, a centrifugal fan 7 is arranged in the casing 24 of the air inlet end of the filter box 6, and a sealing plate 8 is arranged at the end of the centrifuge 7 away from the air inlet, and the sealing plate 1 Embedded in the box shell 24, the first sealing plate communicates with the acid absorbing device through the ventilation pipe 9, and the acid absorbing device communicates with the alkali absorbing device, wherein the acid absorbing device includes a regulating control valve 10, Quick connector 11, liquid replenishment pipeline 12 and pickling tank 13, the ventilation pipeline of the sealing plate-8 extends into the pickling solution in the pickling tank, and the pickling tank 13 is also connected to a part of the outlet pipeline. side, the other side of the gas outlet pipeline is communicated and stretched into the solution of the alkali cleaning tank 14, and the gas outlet pipeline of the alkali cleaning tank 14 stretches into the sealing plate two 26 and communicates with the photocatalyst absorption tank 15, and the acid cleaning tank 13 is also communicated with a liquid replenishment pipeline 12, the liquid replenishment pipeline 12 is provided with the quick connector 11, an adjustment control valve 10 is arranged between the quick connector 11 and the liquid replenishment pipeline 12, and the photocatalyst absorption tank 15 The gas outlet end is also provided with a sealing plate three 27, the activated carbon adsorption device is an activated carbon adsorption plate 16, and the activated carbon adsorption plate 16 is arranged between the sealing plate three 27 and the sealing plate four 28, and the sealing plate four 28 The ultraviolet sterilizing device is arranged between the sealing plate five 29, and the ultraviolet sterilizing device includes an ultraviolet generator 17 and a titanium dioxide plate 18, and the ultraviolet generator 17 is arranged on the inner wall of the box shell, and the titanium dioxide The plate 18 is vertically arranged between the ultraviolet generator 17, and the air duct at the sealing plate five 29 is communicated with the spray cleaning device, and the spray cleaning device includes a nozzle mounting plate 19 and a plurality of nozzles 20, wherein, The nozzle mounting plate 19 is installed and fixed on the inner wall of the box shell, the nozzles 20 are arranged side by side on the nozzle mounting plate 19, the gas drying box 21 communicates with the spray cleaning device, and the gas detection The box 22 communicates with the gas drying box 21 , and the gas detection box 22 is provided with the exhaust port 23 .

In order to classify the garbage for convenience, there are at least three garbage storage boxes 2 isolated from each other. The gas detection device is provided with at least a pH detection probe and a dust detection probe. The suction hood 4 is a conical structure with a small top and a large bottom. The titanium dioxide plates 18 are at least three arranged at equal intervals. The first sealing plate, the second sealing plate, the third sealing plate, the fourth sealing plate and the fifth sealing plate are all embedded on the inner wall of the box shell, and sealant is applied to the embedded points. An auxiliary fan is provided at the exhaust port. The ventilation pipe is made of corrosion-resistant stainless steel pipe.

The invention has a reasonable structure. By setting multiple gas filtering devices, the exhaust gas can be well controlled within a safe range. By setting a plurality of sealing plates, the gas can be evenly and thoroughly filtered one by one. At the same time, a detection device is set. According to the data of the detection device, the concentration of the solution absorbed by acid and alkali can be automatically fed back and adjusted, so that the gas reaches the requirements of safety and environmental protection. At the same time, a spray washing device can be provided to further process the gas effectively. The best way to realize the effective treatment of experimental waste gas and meet the emission requirements of environmental protection.

The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Those of ordinary skill in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all Equivalent technical solutions also belong to the category of the present invention, and the scope of patent protection of the present invention should be defined by the claims.

Claims (5)

1. a fume hood filtering device for experiment, it comprises cabinet, rubbish placement box, glass isolation door, suction hood, deflector and filter box, it is characterized in that, described cabinet is arranged against the wall, and described The bottom end of the cabinet is provided with the garbage storage box, a glass isolation door is provided above the garbage storage box, the suction hood is provided above the glass isolation door, and the suction hood is provided above the suction hood. The deflector, the upper part of the deflector communicates with the filter box, one end of the filter box is provided with an air inlet, the other end of the filter box is provided with an exhaust port, and the air inlet An acid absorption device, an alkali absorption device, an activated carbon adsorption device, an ultraviolet sterilizing device, a spray washing device, a gas drying device and a gas detection device are sequentially arranged between the exhaust port, and the garbage storage box is at least three mutually isolated One, the gas detection device is provided with at least a pH detection probe and a dust detection probe, the suction hood is a conical structure with a small top and a large bottom, and a centrifugal Fan, the end of the centrifuge away from the air inlet is provided with a sealing plate one, the sealing plate one is embedded in the box shell, the sealing plate one communicates with the acid absorption device through the ventilation pipe, the acid The absorption device communicates with the alkali absorption device, wherein the acid absorption device includes a regulating control valve, a quick joint, a liquid replenishment pipeline and a pickling tank, and the ventilation pipeline of the sealing plate 1 extends into the pickling solution in the pickling tank Inside, the pickling tank is also connected to one side of the gas outlet pipeline, and the other side of the gas outlet pipeline is connected to extend into the solution of the alkali cleaning tank, and the gas outlet pipeline of the alkali cleaning tank extends into the second sealing plate It communicates with the photocatalyst absorption tank, and the pickling tank is also connected with a liquid replenishment pipeline. The quick connector is arranged on the liquid replenishment pipeline, and an adjustment control valve is arranged between the quick connector and the liquid replenishment pipeline. The photocatalyst The gas outlet end of the absorption tank is also provided with a sealing plate three, and the activated carbon adsorption device is an activated carbon adsorption plate, and the activated carbon adsorption plate is arranged between the sealing plate three and the sealing plate four, and the sealing plate four and the sealing plate The ultraviolet sterilizing device is arranged between five, and the ultraviolet sterilizing device includes an ultraviolet generator and a titanium dioxide plate, and the ultraviolet generator is arranged on the inner wall of the box shell, and the titanium dioxide plate and the ultraviolet generator vertically arranged between them, and the ventilation pipes at the five positions of the sealing plate communicate with the spraying device, and the spraying device includes a nozzle installation plate and a plurality of nozzles, wherein the nozzle installation plate is installed and fixedly arranged on the box shell On the inner wall of the nozzle, the nozzles are arranged side by side on the nozzle installation plate, the gas drying box is connected with the spray washing device, the gas detection box is connected with the gas drying box, and the gas detection box is set There is the exhaust port. 2. A kind of experimental fume hood filtering device according to claim 1, characterized in that, the titanium dioxide plates are at least three arranged at equal intervals. 3. a kind of experimental fume hood filtering device according to claim 1, is characterized in that, described sealing plate one, sealing plate two, sealing plate three, sealing plate four and sealing plate five all adopt the mode of embedding to be arranged on The inner wall of the box shell and the embedding point are coated with sealant. 4. A kind of experimental fume hood filtering device according to claim 1, characterized in that an auxiliary fan is arranged at the exhaust port. 5. A kind of experimental fume hood filtering device according to claim 1, characterized in that, the vent pipe is made of corrosion-resistant stainless steel pipe.