CN219376686U - Mechanism for oxidizing and degrading VOCs waste gas by low-temperature plasma coupling biological film - Google Patents

Abstract

The utility model discloses a mechanism for low-temperature plasma coupled biofilm oxidation degradation of VOCs waste gas, which comprises a base. The upper end surface of the base is provided with a filter box, a deodorization box and an ultraviolet photolysis box in sequence from left to right. An aeration pump is arranged on one side of the outer wall of the deodorization box. An aeration pipeline is arranged at the bottom of the deodorization box. One end is provided with a sprinkler head. Open the intake valve to let the exhaust gas enter the filter box through the intake pipe, then start the aeration pump to pump the exhaust gas into the deodorization box through the aeration pipeline, and at the same time start the ozone generator to prepare high-concentration ozone and pump it into the water tank through the delivery pipeline to mix with water to make saturated ozone water, and then pump it out by starting the water pump and spray it into the deodorization box through the spray head to enhance the deodorization effect on the exhaust gas.

Description

A mechanism for low-temperature plasma coupled biofilm oxidation to degrade VOCs exhaust gas

technical field

The utility model relates to the technical field of VOCs waste gas treatment, in particular to a mechanism for oxidatively degrading VOCs waste gas coupled with low-temperature plasma.

Background technique

In the prior art, when VOCs waste gas is treated at present, microbial purification technology or ultraviolet photolysis technology is often used to treat VOCs waste gas, and the treated waste gas is discharged from the exhaust port to the surrounding environment. However, after microbial purification technology or ultraviolet photolysis technology is used alone to treat VOCs waste gas, although the discharged waste gas meets the standards, the waste gas still contains certain odors and affects the surrounding environment.

Such as the Chinese patent whose notification number is CN213668697U, it discloses a kind of ultraviolet light decoupling biofilm oxidative degradation VOCs waste gas treatment device, including a biological filter box and an ultraviolet light decomposition box, a centrifugal fan is arranged between the biological filter box and the ultraviolet photolysis box, the air inlet of the centrifugal fan communicates with the biological filter box, the air outlet of the centrifugal fan is fixedly connected with a filter box, and the filter box communicates with the ultraviolet photolysis box through a pipeline. The bottom of the filter box is fixedly connected with a gasket, the top of the filter box is provided with a slot, the inner wall of the slot is movably connected with the surface of the gasket, the side of the filter box is fixedly connected with a connection seat, the inner wall of the connection seat is fixedly connected to the surface of the fixed shaft, and the surface of the fixed shaft is movably socketed with an internal thread cylinder, the inner wall of the internal thread cylinder is threadedly connected with the surface of the bolt, the side of the box cover is fixedly connected with a block, the inner wall of the block is movably connected with the surface of the bolt, the surface of the bolt is fixedly sleeved with a pressure ring, and the bottom of the pressure ring is movably connected with the top of the block. , The side of the inner wall of the filter box is fixedly connected with a threaded pipe, the surface of the threaded pipe is threaded with the inner wall of the round pipe, and the inner wall of the round pipe is fixedly connected with the first filter element and the second filter element respectively.

But there is following deficiency in above-mentioned scheme:

The above-mentioned patent document reduces the peculiar smell in the exhaust gas by combining a biological filter box with an ultraviolet photolysis box, but the above-mentioned patent uses a filter element to filter the exhaust gas, and effectively neutralizes the ammonia component which is the main source of the odor in the exhaust gas.

To this end, we propose a mechanism for low-temperature plasma coupled biofilm oxidation to degrade VOCs exhaust gas.

Utility model content

The purpose of this utility model is to provide a low-temperature plasma-coupled biofilm oxidation degradation mechanism for VOCs waste gas, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a low-temperature plasma-coupled biofilm oxidative degradation mechanism for VOCs waste gas, including a base, and the upper end surface of the base is sequentially provided with a filter box, a deodorization box and an ultraviolet photolysis box from left to right;

An aeration pump is provided on one side of the outer wall of the deodorization box, a drain valve is provided on the lower part of one side of the deodorization box, a control panel is provided on one side of the deodorization box, an aeration pipeline is provided at the bottom of the deodorization box, one end of the aeration pipeline is connected with the gas outlet of the aeration pump, and an ozone generator is provided on one side of the upper surface of the deodorization box;

The other side of the upper end surface of the deodorization tank is provided with a water tank, the gas outlet of the ozone generator is communicated with the water tank through the delivery pipeline, the delivery pipeline is provided with a control valve, the upper surface of the deodorization tank is provided with a water pump, the water inlet of the water pump is communicated with the water tank through a pipeline, and a spray head is arranged at one end of the deodorization tank, and the water inlet of the shower head is connected with the water outlet of the water pump through a pipeline;

One side of the filter box is provided with an air inlet pipe, the air inlet pipe is provided with an air inlet valve, and a filter assembly is arranged in the filter box, and the air intake end of the aeration pump communicates with one side of the filter box through a pipeline, and the filter assembly includes three sets of slots arranged in the filter box, and the three sets of slots are sequentially inserted with a non-woven filter plate, a filter mesh plate and an activated carbon filter plate from left to right;

The outer wall of the ultraviolet photolysis box is provided with an air pump, the air intake end of the air pump communicates with the deodorization box through the second delivery pipeline, the outlet end of the air pump communicates with the bottom side of the ultraviolet photolysis box through a pipeline, the bottom of the inner wall of the ultraviolet photolysis box is provided with a first biofilm filter plate, the upper part of the inner wall of the ultraviolet photolysis box is provided with a second biofilm filter plate, both sides of the inner wall of the ultraviolet photolysis box are provided with ultraviolet lamps, and the top of the ultraviolet photolysis box is provided with an exhaust pipe.

Compared with the prior art, the beneficial effect of the utility model is: the utility model opens the intake valve to let the exhaust gas enter the filter box through the intake pipe, and then the control panel starts the aeration pump, and the aeration pump pumps out the exhaust gas filtered by the non-woven filter plate, the filter screen plate and the activated carbon filter plate in the filter box through the pipeline, and pumps it into the deodorization box through the aeration pipeline, and starts the ozone generator at the same time to prepare high-concentration ozone. After the water tank is connected to the mixed saturated ozone water, it is sprayed by the spray head into the deodorization box to effectively neutralize the ammonia component in the exhaust gas to enhance the deodorization effect of the exhaust gas. Then, the gas in the deodorization box is discharged into the ultraviolet photolysis box through the pipeline through the air pump, and the ultraviolet light is activated through the control panel, so that the first biofilm filter plate and the second biofilm filter plate are oxidatively degraded with the VOCs exhaust gas. The treated gas can be discharged through the exhaust pipe to complete the purification and filtration of exhaust gas.

Description of drawings

Fig. 1 is a schematic diagram of the front view of the utility model;

Fig. 2 is a schematic diagram of the cut-away structure of the utility model from the front view;

Fig. 3 is an enlarged schematic diagram of a point in Fig. 2 of the present invention.

Among the figure: 1, base; 101, control panel; 2, filter box; 3, deodorizing box; 4, ultraviolet photolysis box; 5, aeration pump; 6, aeration pipeline; 7, ozone generator; 8, water tank; 9, delivery pipeline; 10, control valve; 11, water pump; 12, spray head; 13, air intake pipe; 19. Drain valve; 20. Air suction pump; 21. Second delivery pipe; 22. First biofilm filter plate; 23. Second biofilm filter plate; 24. Ultraviolet lamp; 25. Exhaust pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a low-temperature plasma-coupled biofilm oxidative degradation mechanism for VOCs waste gas, including a base 1, and the upper end surface of the base 1 is fixed and installed with a filter box 2, a deodorization box 3 and an ultraviolet light photolysis box 4 from left to right in sequence;

The left side of the outer wall of the deodorization box 3 is fixed with an aeration pump 5 by bolts, the input end of the aeration pump 5 is connected to the control end of the control panel 101 by a wire, the bottom end of the deodorization box 3 is fixed with an aeration pipe 6 by bolts, the aeration pipe 6 is provided with an aeration hole, and the extension end of the aeration pipe 6 is tightly sleeved on the outlet end of the aeration pump 5, and the right side of the upper end of the deodorization box 3 is fixed by a bolt. The left side of the upper surface of the deodorizing box 3 is fixed with a water tank 8 by bolts, the gas outlet of the ozone generator 7 communicates with the water tank 8 through the delivery pipeline 9, and the delivery pipeline 9 is fixedly installed with a control valve 10 by bolts. The control valve 10 is a solenoid valve. The input terminal is connected to the power supply through wires;

The upper surface of the deodorizing box 3 is fixedly equipped with a water pump 11 by bolts, the input end of the water pump 11 is connected to the control end of the control panel 101 by electric wires, the water inlet end of the water pump 11 is communicated with the water tank 8 through a pipeline, and the top of the deodorizing box 3 is fixedly installed with a spray head 12 by bolts, and the water inlet end of the water pump 12 is connected with the water outlet end of the water pump 11 through a pipeline;

The left side of the filter box 2 is seamlessly welded with an air intake pipe 13, on which an air intake valve 14 is fixedly installed through a flange, and a filter assembly is fixedly installed in the filter box 2 through bolts, and the air intake end of the aeration pump 5 is communicated with the right side of the filter box 2 through a pipeline, and the filter assembly includes three sets of card slots 15 fixedly installed in the filter box 2 by bolts, and the three sets of card slots 15 are fixedly inserted in sequence from left to right.

The outer wall of the ultraviolet photolysis box 4 is fixedly equipped with an air pump 20 by bolts, the input end of the air pump 20 is connected to the control end of the control panel 101 by electric wires, the air intake end of the air pump 20 is communicated with the deodorization box 3 through the second conveying pipeline 21, the gas outlet end of the air pump 20 is communicated with the bottom left side of the ultraviolet photolysis box 4 through the pipeline, the inner wall bottom of the ultraviolet photolysis box 4 is fixedly installed with the first biofilm filter plate 22 by bolts, and the upper inner wall of the ultraviolet photolysis box 4 is fixed by bolts. The second biofilm filter plate 23, the first biofilm filter plate 22 and the second biofilm filter plate 23 are low-temperature plasma-coupled biofilms, and the left and right sides of the inner wall of the ultraviolet photolysis box 4 are fixed with ultraviolet lamps 24 by bolts.

The working principle of this embodiment is as follows: open the air intake valve 14 and waste gas enters the filter box 2 through the air intake pipe 13, then the control panel 101 starts the aeration pump 5, and the aeration pump 5 extracts the waste gas filtered by the non-woven fabric filter plate 16, the filter screen plate 17 and the activated carbon filter plate 18 in the filter box 2 through the pipeline, and pumps it into the deodorization box 3 through the aeration pipeline 6, and simultaneously starts the ozone generator 7 to prepare high-concentration ozone, and opens the control valve 10 and pumps it into the water tank 8 through the delivery pipeline 9 Mix it with water to make saturated ozone water, then start the water pump 11 to extract the mixed saturated ozone water from the water tank 8, then spray it into the deodorization box 3 through the spray head 12 to effectively neutralize the ammonia component in the exhaust gas to enhance the deodorization effect on the exhaust gas, then use the air pump 20 to discharge the gas in the deodorization box 3 into the ultraviolet photolysis box 4 through the pipeline, and start the ultraviolet lamp 24 through the control panel 101, so that the first biofilm filter plate 22 and the second biofilm filter plate 2 3 Carry out oxidative degradation reaction with VOCs exhaust gas, and the treated gas can be discharged through the exhaust pipe 25 to complete the purification and filtration of exhaust gas.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. A mechanism for low-temperature plasma-coupled biofilm oxidation degradation of VOCs waste gas, including a base (1), characterized in that: the upper end surface of the base (1) is sequentially provided with a filter box (2), a deodorization box (3) and an ultraviolet photolysis box (4); An aeration pump (5) is provided on one side of the outer wall of the deodorization box (3), an aeration pipeline (6) is provided at the bottom end of the deodorization box (3), and one end of the aeration pipeline (6) is connected to the outlet end of the aeration pump (5). An ozone generator (7) is installed on one side of the upper end surface of the deodorization box (3), and a water tank (8) is installed on the other side of the upper end surface of the deodorization box ( 3 ). 9) Communicate with the water tank (8), the delivery pipe (9) is provided with a control valve (10), the upper end of the deodorization tank (3) is provided with a water pump (11), the water inlet end of the water pump (11) is communicated with the water tank (8) through a pipe, and a spray head (12) is installed at one end of the deodorization tank (3), and the water inlet end of the spray head (12) is connected to the water outlet end of the water pump (11) through a pipe. 2. A low-temperature plasma-coupled biofilm oxidative degradation mechanism for VOCs waste gas according to claim 1, characterized in that: one side of the filter box (2) is provided with an air intake pipe (13), the air intake pipe (13) is provided with an air intake valve (14), the filter box (2) is provided with a filter assembly, and the air intake end of the aeration pump (5) communicates with one side of the filter box (2) through a pipe. 3. A mechanism for low-temperature plasma-coupled biofilm oxidative degradation of VOCs waste gas according to claim 2, characterized in that: the filter assembly includes three sets of slots (15) arranged in the filter box (2), and the three sets of slots (15) are sequentially inserted with a non-woven filter plate (16), a filter plate (17) and an activated carbon filter plate (18) from left to right. 4. A mechanism for low-temperature plasma-coupled biofilm oxidative degradation of VOCs waste gas according to claim 1, characterized in that: a drain valve (19) is provided on one side of the deodorization box (3), and a control panel (101) is provided on one side of the deodorization box (3). 5. A mechanism for low-temperature plasma-coupled biofilm oxidative degradation of VOCs waste gas according to claim 1, characterized in that: the outer wall of the ultraviolet photolysis box (4) is provided with an air pump (20), the inlet end of the air pump (20) communicates with the deodorization box (3) through the second delivery pipe (21), the outlet end of the air pump (20) communicates with the lower side of the ultraviolet photolysis box (4) through a pipeline, and the lower part of the inner wall of the ultraviolet photolysis box (4) is provided with A first biofilm filter plate (22), a second biofilm filter plate (23) is provided on the upper part of the inner wall of the ultraviolet photolysis box (4), ultraviolet lamps (24) are arranged on both sides of the inner wall of the ultraviolet photolysis box (4), and an exhaust pipe (25) is arranged on the top of the ultraviolet photolysis box (4).