CN212492231U

CN212492231U - High concentration VOC gas catalytic combustion adsorbs all-in-one

Info

Publication number: CN212492231U
Application number: CN202021133182.7U
Authority: CN
Inventors: 郝玉洪; 李莹; 高鹏
Original assignee: Hebei Zhongneng Environmental Protection Engineering Technology Co ltd
Current assignee: Hebei Zhongneng Environmental Protection Engineering Technology Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-02-09
Anticipated expiration: 2030-06-18

Abstract

The utility model relates to the technical field of organic waste gas treatment equipment, in particular to a high-concentration VOC gas catalytic combustion adsorption integrated machine; the system can carry out pre-adsorption treatment on the organic gas, so that the concentration of the waste gas is reduced, the catalytic combustion reaction of the organic gas is more thorough, and the treatment effect is better; including the adsorption tank, mix jar in advance, catalytic combustion case, first communicating pipe, second communicating pipe, the spiral air-supply line, the desorption back flow, first fan and second fan, be provided with the absorption chamber in the adsorption tank, it is provided with the active carbon adsorption bed to adsorb the intracavity, the left end of adsorption tank is provided with the intake pipe, mix jar in advance and be provided with in advance and mix the chamber, the catalytic combustion incasement is provided with the catalytic combustion chamber, the catalytic combustion intracavity is provided with the catalytic combustion bed, the bottom of catalytic combustion case is provided with the blast pipe, be provided with one-way throttle valve on the desorption back flow.

Description

High concentration VOC gas catalytic combustion adsorbs all-in-one

Technical Field

The utility model relates to an organic waste gas treatment facility's technical field especially relates to a high concentration VOC gas catalytic combustion adsorbs all-in-one.

Background

As is well known, VOC refers to volatile organic compounds, mainly including alkanes, olefins, aromatic hydrocarbons, aldehydes, etc., and a high-concentration VOC gas catalytic combustion and adsorption all-in-one machine is a catalytic combustion processing device for volatile organic waste gas, and is widely used in the field of organic waste gas processing equipment; the existing high-concentration VOC gas catalytic combustion and adsorption integrated machine comprises a catalytic combustion box, wherein a catalytic combustion cavity is arranged in the catalytic combustion box, and a catalytic combustion bed is arranged in the catalytic combustion cavity; when the existing high-concentration VOC gas catalytic combustion adsorption all-in-one machine is used, organic gas is introduced into a catalytic combustion chamber and is discharged after being treated by catalytic reaction of a catalytic combustion bed; the existing high-concentration VOC gas catalytic combustion and adsorption all-in-one machine is found in use, and the insufficient catalytic combustion reaction of organic gas and oxygen is not thorough due to the fact that the concentration of the organic gas in waste gas is too high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a can carry out adsorption treatment in advance to organic gas, make exhaust gas concentration reduce, organic gas catalytic combustion reaction is more thorough, and the better high concentration VOC gas catalytic combustion of treatment adsorbs all-in-one.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: comprises an adsorption tank, a premixing tank, a catalytic combustion tank, a first communicating pipe, a second communicating pipe, a spiral air inlet pipe, a desorption return pipe, a first fan and a second fan, wherein an adsorption cavity is arranged in the adsorption tank, an activated carbon adsorption bed is arranged in the adsorption cavity, an air inlet pipe is arranged at the left end of the adsorption tank, the output end of the air inlet pipe is communicated with the left part of the adsorption cavity, a premixing cavity is arranged in the premixing tank, the spiral air inlet pipe is fixedly arranged in the premixing cavity, the first fan is fixedly arranged at the top end of the premixing tank, the output end of the first fan is communicated with the input end of the spiral air inlet pipe, the input end of the first communicating pipe is communicated with the right part of the adsorption cavity, the output end of the first communicating pipe extends into the premixing cavity from the bottom end of the tank, the output end of the first communicating pipe is positioned at the center of the spiral air inlet pipe, a, the catalytic combustion intracavity is provided with catalytic combustion bed, the input of second communicating pipe with mix chamber upper portion intercommunication in advance, the output of second communicating pipe stretches into catalytic combustion intracavity upper portion from the top of catalytic combustion case, the bottom of catalytic combustion case is provided with the blast pipe, the input of blast pipe with catalytic combustion chamber bottom intercommunication, the second fan is fixed to be set up in the adsorption tank rear portion, the input of desorption back flow with the output intercommunication of blast pipe, the output of desorption back flow with the input intercommunication of second fan, the output of second fan with the input intercommunication of intake pipe, be provided with one-way throttle valve on the desorption back flow.

Preferably, the output end of the first communicating pipe is provided with an air distribution pipe, and the outer wall of the air distribution pipe is provided with a plurality of groups of uniformly distributed air distribution holes.

Preferably, a plurality of groups of electric heating rods are arranged on the inner wall of the bottom end of the premixing cavity, the plurality of groups of electric heating rods are all located at the center of the spiral air inlet pipe, and the plurality of groups of electric heating rods are uniformly distributed around the circumferential direction of the air distribution pipe.

Preferably, the output end of the air inlet pipe is provided with a non-return air valve.

Preferably, a polyurethane heat-insulating layer is arranged on the outer wall of the premixing tank.

Preferably, the output end of the spiral air inlet pipe faces the tangential direction of the inner wall of the premixing cavity.

Preferably, the input end of the first fan is provided with a dustproof filter cover.

(III) advantageous effects

Compared with the prior art, the utility model provides a high concentration VOC gas catalytic combustion adsorbs all-in-one possesses following beneficial effect: the high-concentration VOC gas catalytic combustion and adsorption integrated machine comprises an adsorption tank, an active carbon adsorption bed in the adsorption tank, a first fan, a spiral air inlet pipe, a second fan, a first communicating pipe, a second communicating pipe, a first fan, a second communicating pipe, a second circulating pipe, a, after tail gas enters the adsorption box, the temperature in the adsorption cavity rises, the organic gas adsorbed on the activated carbon adsorption bed is desorbed at high temperature, and the desorbed organic gas enters the premixing tank and the catalytic combustion cavity for treatment, so that the organic gas can be subjected to pre-adsorption treatment, the concentration of waste gas is reduced, the catalytic combustion reaction of the organic gas is more thorough, and the treatment effect is better.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the internal front view of the present invention;

fig. 3 is a schematic top view of the present invention;

in the drawings, the reference numbers: 1. an adsorption tank; 2. a premixing tank; 3. a catalytic combustion chamber; 4. a first communication pipe; 5. a second communicating pipe; 6. a spiral air inlet pipe; 7. a desorption reflux pipe; 8. a first fan; 9. a second fan; 10. an activated carbon adsorption bed; 11. an air inlet pipe; 12. a catalytic combustion bed; 13. an exhaust pipe; 14. a one-way throttle valve; 15. an air distribution pipe; 16. distributing air holes; 17. an electric heating rod; 18. a non-return air valve; 19. a polyurethane heat-insulating layer; 20. a dustproof filter cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the high concentration VOC gas catalytic combustion adsorption integrated machine of the present invention comprises an adsorption tank 1, a premixing tank 2, a catalytic combustion tank 3, a first communicating pipe 4, a second communicating pipe 5, a spiral air inlet pipe 6, a desorption reflux pipe 7, a first fan 8 and a second fan 9, wherein an adsorption chamber is arranged in the adsorption tank 1, an activated carbon adsorption bed 10 is arranged in the adsorption chamber, an air inlet pipe 11 is arranged at the left end of the adsorption tank 1, the output end of the air inlet pipe 11 is communicated with the left part of the adsorption chamber, a premixing chamber is arranged in the premixing tank 2, the spiral air inlet pipe 6 is fixedly arranged in the premixing chamber, the first fan 8 is fixedly arranged at the top end of the premixing tank 2, the output end of the first fan 8 is communicated with the input end of the spiral air inlet pipe 6, the input end of the first communicating pipe 4 is communicated with the right part of the adsorption chamber, the output end of the first communicating pipe, the output end of the first communicating pipe 4 is positioned at the center of the spiral air inlet pipe 6, a catalytic combustion chamber is arranged in the catalytic combustion box 3, a catalytic combustion bed 12 is arranged in the catalytic combustion chamber, the input end of the second communicating pipe 5 is communicated with the upper part of the premixing chamber, the output end of the second communicating pipe 5 extends into the upper part of the catalytic combustion chamber from the top end of the catalytic combustion box 3, an exhaust pipe 13 is arranged at the bottom end of the catalytic combustion box 3, the input end of the exhaust pipe 13 is communicated with the bottom part of the catalytic combustion chamber, the second fan 9 is fixedly arranged at the rear part of the adsorption box 1, the input end of the desorption return pipe 7 is communicated with the output end of the exhaust pipe 13, the output end of the desorption return pipe 7 is communicated with the input end of the second fan 9, the output end of the; organic waste gas is blown into an adsorption box 1 through an air inlet pipe 11 and is adsorbed by an activated carbon adsorption bed 10 in the adsorption box 1, the concentration of the organic gas in the waste gas after adsorption treatment is reduced and enters a premixing tank 2, a first fan 8 is started, the first fan 8 pressurizes external air and injects the pressurized external air into a spiral air inlet pipe 6, the air spirally advances in the spiral air inlet pipe 6 so as to reduce the flow rate, the air enters the premixing tank 2 and is fully mixed with the entered waste gas and then enters a catalytic combustion chamber through a second communicating pipe 5, the air is purified and discharged after catalytic combustion treatment of a catalytic combustion bed 12, when the activated carbon adsorption bed 10 is saturated in adsorption or the concentration of the organic gas in the waste gas is low, a second fan 9 is started, after pressurization by the second fan 9, part of the purified tail gas flows back into the adsorption box 1 through a desorption return pipe 7, and the purified tail gas is high-temperature gas after catalytic combustion, after the tail gas enters into adsorption tank 1, make the absorption intracavity temperature rise, the organic gas of adsorption bed 10 going up the desorption of adsorbed under high temperature, organic gas after the desorption enter into to mix jar 2 and catalytic combustion chamber in advance and handle can, can carry out the adsorption in advance to organic gas and handle, make waste gas concentration reduce, organic gas catalytic combustion reaction is more thorough, and the treatment effect is better.

The utility model discloses a high concentration VOC gas catalytic combustion adsorbs all-in-one, the output of first connecting pipe 4 is provided with gas distribution pipe 15, is provided with the gas distribution hole 16 of multiunit equipartition on the outer wall of gas distribution pipe 15; through the arrangement of the air distribution pipe 15, the organic gas can uniformly disperse and enter the premixing cavity to be fully mixed with the air; a plurality of groups of electric heating rods 17 are arranged on the inner wall of the bottom end of the premixing cavity, the plurality of groups of electric heating rods 17 are all positioned at the center of the spiral air inlet pipe 6, and the plurality of groups of electric heating rods 17 are uniformly distributed around the circumferential direction of the air distribution pipe 15; the arrangement of a plurality of groups of electric heating rods 17 can preheat the mixed gas in the premixing cavity, the air in the spiral air inlet pipe 6 advances in a spiral way, the stroke is increased, the air is fully preheated and then is mixed with the organic gas, the temperature of the mixed gas entering the catalytic combustion box 3 is increased, the temperature fluctuation in the catalytic combustion cavity is reduced, and the catalytic combustion reaction of the organic gas is more thorough; the output end of the air inlet pipe 11 is provided with a check air valve 18; through the arrangement of the check valve 18, when the air inlet pressure is low, the tail gas which flows back through the desorption return pipe 7 can be effectively prevented from flowing back to the previous treatment process through the air inlet pipe 11; a polyurethane heat-insulating layer 19 is arranged on the outer wall of the premixing tank 2; through the arrangement of the polyurethane heat-insulating layer 19, the heat loss of the premixing tank 2 can be effectively reduced, and the energy is saved and the environment is protected; the output end of the spiral air inlet pipe 6 faces the tangential direction of the inner wall of the premixing cavity; the air discharged by the spiral air inlet pipe 6 enters the premixing cavity along the tangential direction of the inner wall of the premixing cavity, so that rotational flow is formed in the premixing cavity, and the organic gas and the air are fully mixed; the input end of the first fan 8 is provided with a dustproof filter cover 20; by the arrangement of the dustproof filter cover 20, the entering of external dust into the premixing tank 2 can be effectively reduced.

When in use, organic waste gas is blown into the adsorption box 1 through the air inlet pipe 11 and is adsorbed by the activated carbon adsorption bed 10 in the adsorption box 1, the concentration of the organic gas in the waste gas after adsorption treatment is reduced and enters the premixing tank 2, the first fan 8 is started, the first fan 8 pressurizes external air and injects the pressurized external air into the spiral air inlet pipe 6, the air spirally advances in the spiral air inlet pipe 6 so as to reduce the flow rate, the air enters the premixing tank 2 and is fully mixed with the entered waste gas and then enters the catalytic combustion chamber through the second communicating pipe 5, the air is purified and discharged after the catalytic combustion treatment of the catalytic combustion bed 12, when the activated carbon adsorption bed 10 is saturated in adsorption or the concentration of the organic gas in the waste gas is low, the second fan 9 is started, after the pressurization of the second fan 9, part of the purified tail gas flows back into the adsorption box 1 through the desorption pipe 7, because the purified tail gas is high-temperature gas after the catalytic combustion, after tail gas enters the adsorption box 1, the temperature in the adsorption cavity is raised, organic gas adsorbed on the activated carbon adsorption bed 10 is desorbed at high temperature, and the desorbed organic gas enters the premixing tank 2 and the catalytic combustion cavity for treatment, so that the organic gas can be subjected to pre-adsorption treatment, the concentration of waste gas is reduced, the catalytic combustion reaction of the organic gas is more thorough, and the treatment effect is better; through the arrangement of the air distribution pipe 15, the organic gas can uniformly disperse and enter the premixing cavity to be fully mixed with the air; the arrangement of a plurality of groups of electric heating rods 17 can preheat the mixed gas in the premixing cavity, the air in the spiral air inlet pipe 6 advances in a spiral way, the stroke is increased, the air is fully preheated and then is mixed with the organic gas, the temperature of the mixed gas entering the catalytic combustion box 3 is increased, the temperature fluctuation in the catalytic combustion cavity is reduced, and the catalytic combustion reaction of the organic gas is more thorough; through the arrangement of the check valve 18, when the air inlet pressure is low, the tail gas which flows back through the desorption return pipe 7 can be effectively prevented from flowing back to the previous treatment process through the air inlet pipe 11; through the arrangement of the polyurethane heat-insulating layer 19, the heat loss of the premixing tank 2 can be effectively reduced, and the energy is saved and the environment is protected; the air discharged by the spiral air inlet pipe 6 enters the premixing cavity along the tangential direction of the inner wall of the premixing cavity, so that rotational flow is formed in the premixing cavity, and the organic gas and the air are fully mixed; by the arrangement of the dustproof filter cover 20, the entering of external dust into the premixing tank 2 can be effectively reduced.

The utility model discloses a high concentration VOC gas catalytic combustion adsorbs all-in-one, first fan, second fan, one-way throttle pneumatic valve and electric rod are all bought to first fan, second fan, one-way throttle pneumatic valve and electric rod all carry out the electricity through the instruction manual of buying together and connect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-concentration VOC gas catalytic combustion adsorption all-in-one machine is characterized by comprising an adsorption tank (1), a premixing tank (2), a catalytic combustion tank (3), a first communicating pipe (4), a second communicating pipe (5), a spiral air inlet pipe (6), a desorption backflow pipe (7), a first fan (8) and a second fan (9), wherein an adsorption cavity is arranged in the adsorption tank (1), an activated carbon adsorption bed (10) is arranged in the adsorption cavity, an air inlet pipe (11) is arranged at the left end of the adsorption tank (1), the output end of the air inlet pipe (11) is communicated with the left part of the adsorption cavity, a premixing cavity is arranged in the premixing tank (2), the spiral air inlet pipe (6) is fixedly arranged in the premixing cavity, the first fan (8) is fixedly arranged at the top end of the premixing tank (2), the output end of the first fan (8) is communicated with the input end of the spiral air inlet pipe (6), the input of first communicating pipe (4) with adsorb chamber right part intercommunication, the output of first communicating pipe (4) stretches into from the bottom of mixing jar (2) in advance to mix in the intracavity in advance, the output of first communicating pipe (4) is located the center department of spiral air-supply line (6), be provided with the catalytic combustion chamber in catalytic combustion case (3), be provided with catalytic combustion bed (12) in the catalytic combustion chamber, the input of second communicating pipe (5) with mix chamber upper portion intercommunication in advance, the output of second communicating pipe (5) stretches into to catalytic combustion intracavity upper portion from the top of catalytic combustion case (3), the bottom of catalytic combustion case (3) is provided with blast pipe (13), the input of blast pipe (13) with catalytic combustion chamber bottom intercommunication, second fan (9) are fixed to be set up in adsorption tank (1) rear portion, the input of desorption back flow (7) with the output intercommunication of blast pipe (13), the output of desorption back flow (7) with the input intercommunication of second fan (9), the output of second fan (9) with the input intercommunication of intake pipe (11), be provided with one-way throttle valve (14) on desorption back flow (7).

2. The high-concentration VOC gas catalytic combustion adsorption all-in-one machine as claimed in claim 1, wherein an air distribution pipe (15) is arranged at the output end of the first communication pipe (4), and a plurality of groups of uniformly distributed air distribution holes (16) are arranged on the outer wall of the air distribution pipe (15).

3. The high-concentration VOC gas catalytic combustion adsorption all-in-one machine according to claim 2, wherein a plurality of groups of electric heating rods (17) are arranged on the inner wall of the bottom end of the premixing cavity, the plurality of groups of electric heating rods (17) are all positioned at the center of the spiral air inlet pipe (6), and the plurality of groups of electric heating rods (17) are uniformly distributed around the air distribution pipe (15) in the circumferential direction.

4. The high-concentration VOC gas catalytic combustion and adsorption all-in-one machine as claimed in claim 3, wherein the output end of the air inlet pipe (11) is provided with a non-return air valve (18).

5. The high-concentration VOC gas catalytic combustion and adsorption all-in-one machine as claimed in claim 4, wherein a polyurethane heat-insulating layer (19) is arranged on the outer wall of the premixing tank (2).

6. The high-concentration VOC gas catalytic combustion and adsorption all-in-one machine as claimed in claim 5, wherein the output end of the spiral air inlet pipe (6) faces the tangential direction of the inner wall of the premixing cavity.

7. The high-concentration VOC gas catalytic combustion and adsorption all-in-one machine according to claim 6, wherein the input end of the first fan (8) is provided with a dust-proof filter cover (20).