CN211345356U - Active carbon adsorption desorption catalytic combustion device - Google Patents

Abstract

The utility model discloses an activated carbon adsorption desorption catalytic combustion device, which comprises a catalytic combustion chamber and a plurality of activated carbon adsorption devices, and also comprises an air inlet pipe and a first exhaust pipe, wherein an air inlet branch pipe is arranged between the air inlet pipe and each activated carbon adsorption device, an exhaust branch pipe is arranged between the first exhaust pipe and each activated carbon adsorption device, the inlet of the catalytic combustion chamber is connected with an air outlet pipe, an air outlet branch pipe is arranged between the air outlet pipe and each activated carbon adsorption device, an air outlet valve is arranged on the air outlet branch pipe, the outlet of the catalytic combustion chamber is connected with a second exhaust pipe, a return pipe is connected between the second exhaust pipe, a return branch pipe is arranged between the return pipe and each activated carbon adsorption device, a return valve is arranged on the return branch pipe, an adjusting valve is arranged at the rear part of the second exhaust pipe corresponding to the return pipe, the utility model can recycle heat, the energy utilization rate is improved.

Description

Active carbon adsorption desorption catalytic combustion device

Technical Field

The utility model belongs to organic waste gas treatment device field, more specifically the active carbon adsorption desorption catalytic combustion device that says so designs.

Background

Chinese patent application No. 2019200808952 discloses an activated carbon adsorption desorption catalytic combustion device, which can perform normal waste gas treatment during activated carbon desorption, does not affect the waste gas treatment efficiency, increases the contact area of waste gas and the catalytic combustion device, and makes the combustion more thorough; including box, catalytic combustion board, first active carbon adsorption device, air heater and air-cooler, still include second active carbon adsorption device, first communicating pipe and second communicating pipe, the working chamber divide into air inlet chamber, active carbon adsorption desorption room, cooling chamber and catalytic combustion room, and the box left end is provided with the intake pipe, first active carbon adsorption desorption room and second active carbon adsorption desorption room front end are provided with first blast pipe and second blast pipe respectively, are provided with third communicating pipe between first active carbon adsorption desorption room and the catalytic combustion room, are provided with fourth communicating pipe between second active carbon adsorption desorption room and the catalytic combustion room.

That is to say it adopts two sets of active carbon adsorption device, adsorbs organic waste gas in turn, and a set of when adsorbing, another group then shifts organic waste gas to the catalytic combustion room and handles, but the waste gas of above-mentioned patent still has higher heat behind the catalytic combustion, and it reentries the air inlet chamber after cooling through the cooling water in the cooling chamber, is discharged by the blast pipe behind the active carbon adsorption device, causes thermal a large amount of wastes.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a can carry out the retrieval and utilization to the high temperature waste gas after the catalytic combustion chamber burning, save solitary heating blower, utilize the high temperature waste gas of catalytic combustion chamber to let in active carbon adsorption device and make inside organic waste gas get into the catalytic combustion chamber, improve energy utilization.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an active carbon adsorption desorption catalytic combustion device, includes catalytic combustion room and a plurality of active carbon adsorption device, still includes intake pipe and first blast pipe, all is provided with air intake branch pipe between intake pipe and every active carbon adsorption device, all is provided with exhaust branch pipe between first blast pipe and every active carbon adsorption device, catalytic combustion room's entry linkage has the outlet duct, all is provided with air outlet branch pipe between outlet duct and every active carbon adsorption device, is provided with the air outlet valve on the air outlet branch pipe, catalytic combustion room's exit linkage has the second blast pipe, and second blast pipe intermediate junction has the muffler, all is provided with return air branch pipe between muffler and every active carbon adsorption device, is provided with the return air valve on the return air branch pipe, the rear that the second blast pipe corresponds the muffler is provided with adjusting valve.

Further, the air return pipe is connected with an air supply pipe.

And a temperature sensor is arranged behind the air return pipe corresponding to the air supply pipe.

And a glass fiber paint blocking net is arranged on the air inlet pipe.

And a VOCS detector is arranged between the rear part of the second exhaust pipe corresponding to the air return pipe and the front part of the regulating valve.

Compared with the prior art, the beneficial effects of the utility model are that: at first can utilize a plurality of active carbon adsorption device to carry out the work of circulation in turn, make catalytic combustion chamber concentrate operating time, the high-usage, secondly the heat that produces at catalytic combustion chamber during operation, waste gas after can burning carries out the retrieval and utilization, the waste of energy is reduced, and then save the heating blower who blows to active carbon adsorption device, the energy saving, whether utilize the VOCS detector can detect the waste gas after the burning and accord with emission standard, if unqualified can make its return combustion once more, avoid discharging the pollutant.

Drawings

Fig. 1 is the structure schematic diagram of the activated carbon adsorption desorption catalytic combustion device of the utility model.

Reference numerals: 1. a catalytic combustor; 2. a second exhaust pipe; 3. adjusting the valve; 4. a gas supplementing pipe; 5. a gas supply valve; 6. an air return pipe; 7. a temperature sensor; 8. a first exhaust pipe; 9. an activated carbon adsorption unit; 10. an air inlet pipe; 11. a glass fiber paint barrier web; 12. an intake branch pipe; 13. an intake valve; 14. an exhaust branch pipe; 15. an exhaust valve; 16. an air outlet pipe; 17. a fan; 18. an air outlet branch pipe; 19. an air outlet valve; 20. a return air branch pipe; 21. a gas return valve.

Detailed Description

The embodiment of the catalytic combustion device with activated carbon adsorption and desorption of the present invention is further described with reference to fig. 1.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.

An activated carbon adsorption desorption catalytic combustion device comprises a catalytic combustion chamber 1, a plurality of activated carbon adsorption devices 9, an air inlet pipe 10 and a first exhaust pipe 8, an air inlet branch pipe 12 is arranged between the air inlet pipe 10 and each activated carbon adsorption device 9, an exhaust branch pipe 14 is arranged between each first exhaust pipe 8 and each activated carbon adsorption device 9, an inlet of the catalytic combustion chamber 1 is connected with an air outlet pipe 16, an air outlet branch pipe 18 is arranged between the air outlet pipe 16 and each active carbon adsorption device 9, an air outlet valve 19 is arranged on the air outlet branch pipe 18, the outlet of the catalytic combustion chamber 1 is connected with a second exhaust pipe 2, the middle of the second exhaust pipe 2 is connected with a gas return pipe 6, a gas return branch pipe 20 is arranged between the gas return pipe 6 and each active carbon adsorption device 9, a gas return valve 21 is arranged on the gas return branch pipe 20, and an adjusting valve 3 is arranged behind the second exhaust pipe 2 corresponding to the gas return pipe 6.

As shown in fig. 1, the regulating valve 3 on the second exhaust pipe 2 is located on the side communicating with the atmosphere in the present embodiment, i.e., the regulating valve 3 can control the ratio of the gas discharged to the atmosphere from the second exhaust pipe 2 and the gas into the muffler 6.

In the present embodiment, all the intake branch pipes 12 are provided with intake valves 13, and all the exhaust branch pipes 14 are provided with exhaust valves 15.

The specific gas flow direction is shown by the arrows in fig. 1.

In order to make the gas flow smoothly in this embodiment, it is preferable that the air inlet pipe 10, the air outlet pipe 16 and the air supply pipe 4 are all provided with a fan 17, and certainly, the first exhaust pipe 8, the second exhaust pipe 2 and the air return pipe 6 can all be provided with a fan 17 to drive the gas to flow.

To ensure that the exhaust gases can be catalytically combusted in the catalytic combustor 1, it will be appreciated by those skilled in the art that there is heating means, typically an electric heater, within the catalytic combustor 1.

During operation, organic waste gas is adsorbed by the activated carbon adsorption device 9, as shown in fig. 1, in this embodiment, four activated carbon adsorption devices 9 are provided, for example, two on the left side are used for organic waste gas adsorption, and two on the right side are used for organic waste gas catalytic combustion, the intake valve 13 and the exhaust valve 15 connected to the two activated carbon adsorption devices 9 on the left side are both opened, the exhaust valve 19 and the return valve 21 are both closed, and the organic waste gas is directly exhausted to the atmosphere through the first exhaust pipe 8 after being adsorbed by the activated carbon adsorption devices 9; an air inlet valve 13 and an air exhaust valve 15 connected with two activated carbon adsorption devices 9 on the right side are both closed, an air outlet valve 19 and an air return valve 21 are both opened, at the same time, a fan 17 on an air outlet pipe 16 is started, an electric heater is started, high temperature in the catalytic combustion chamber 1 is discharged to the atmosphere through a second exhaust pipe 2, part of high temperature gas enters the activated carbon adsorption devices 9 through an air return pipe 6, organic substances are separated from the surface of the activated carbon under the action of hot air after adsorption saturation, the organic substances enter a catalytic bed of the catalytic combustion chamber 1 along with the gas, the organic substances are decomposed into CO2 and H2O under the action of a catalyst in the catalytic bed, a large amount of hot air is discharged simultaneously, one part of the hot air returns to the activated carbon adsorption tank to continue to heat the activated carbon, the other part of the hot air is exhausted, the organic substances are separated from the activated carbon by the heat, and no additional heating fan 17, and energy waste is reduced.

In this embodiment, the preferable air return pipe 6 is connected with an air supply pipe 4, the air supply pipe 4 is provided with an air supply valve 5, and the desorption temperature of the activated carbon can be stably maintained within a certain temperature range by controlling the opening degrees of the air supply valve 5, the adjustment valve 3 and the gas outlet valve 19. In addition, the concentration of organic matters in the regeneration gas can be controlled in a proper range by controlling the desorption temperature and the flow of the fan 17, the heat released by the concentration combustion can maintain the heat required by the system operation, at the moment, the electric heating in the catalytic bed can be stopped, and the system maintains the operation by utilizing the heat released by the regenerated organic matters in the combustion, thereby saving the operation cost.

Preferably, the air return pipe 6 is provided with a temperature sensor 7 corresponding to the rear of the air supply pipe 4, so that whether the temperature of the gas entering the activated carbon adsorption device 9 is proper or not can be known according to the temperature displayed by the temperature sensor 7, and the opening degree of each valve can be conveniently adjusted.

The preferred air inlet pipe 10 of this embodiment is provided with the glass fiber and hinders the lacquer net 11, and this kind of dry type filter material is developed according to the characteristics specialty of lacquer fog purification, and it is formed by the compound of glass fiber multilayer, and density increases along with thickness gradually, later plays the supporting role with a layer of different materials, has characteristics such as high efficiency, capacity is big, the working costs is low, fire-retardant.

It is preferred that the second blast pipe 2 of this embodiment is provided with the VOCS detector between corresponding muffler 6 rear and adjusting valve 3 the place ahead, and the VOCS detector is used for detecting whether the waste gas after the catalytic combustion accords with emission standard, and if not, adjusting valve 3 closes for waste gas gets into catalytic combustion chamber 1 through muffler 6, active carbon adsorption device 9 and blast pipe again and carries out repeated burning and discharges after according with the standard, avoids discharging the polluted gas.

The air inlet valve 13, the air outlet valve 19, the exhaust valve 15, the air return valve 21, the adjusting valve 3 and the air supply valve 5 adopted in the embodiment are all pneumatic valves, and the valves are good in tightness, flexible to open, convenient to maintain, firm and durable.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides an active carbon adsorption desorption catalytic combustion device, includes catalytic combustion chamber and a plurality of active carbon adsorption device, still includes intake pipe and first exhaust pipe, all is provided with air intake branch pipe between intake pipe and every active carbon adsorption device, all is provided with air exhaust branch pipe, its characterized in that between first exhaust pipe and every active carbon adsorption device: the inlet connection of catalytic combustion room has the outlet duct, all is provided with the branch pipe of giving vent to anger between outlet duct and every active carbon adsorption device, is provided with out the gas valve on the branch pipe of giving vent to anger, the exit linkage of catalytic combustion room has the second blast pipe, and second blast pipe intermediate junction has the muffler, all is provided with the return air branch pipe between muffler and every active carbon adsorption device, is provided with the return air valve on the return air branch pipe, the rear that the second blast pipe corresponds the muffler is provided with adjusting valve.

2. The activated carbon adsorption desorption catalytic combustion apparatus according to claim 1, characterized in that: the air return pipe is connected with an air supplement pipe.

3. The activated carbon adsorption desorption catalytic combustion apparatus according to claim 2, characterized in that: and a temperature sensor is arranged at the rear part of the air return pipe corresponding to the air supply pipe.

4. The activated carbon adsorption desorption catalytic combustion apparatus according to claim 3, characterized in that: and a glass fiber paint blocking net is arranged on the air inlet pipe.

5. The activated carbon adsorption desorption catalytic combustion apparatus according to claim 4, characterized in that: and a VOCS detector is arranged between the rear part of the second exhaust pipe corresponding to the air return pipe and the front part of the regulating valve.

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