Adsorption and desorption + CO system for fresh air desorption

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses an adsorption and desorption + CO system for fresh air desorption, which comprises an activated carbon adsorption box, a flame arrester is arranged on the right side of the activated carbon adsorption box, a heat exchanger is arranged on the right side of the flame arrester, and a desorption fan is arranged on the right side of the heat exchanger. An adsorption main fan is arranged on the lower right portion of the heat exchanger, a chimney is arranged on the right side of a desorption fan, a cold air supplementing fan is arranged over the chimney, the top of the activated carbon adsorption box is connected with a waste gas input pipeline, and an exhaust pipeline is arranged in the middle of the bottom of the activated carbon adsorption box; a first conveying pipeline is arranged at the bottom of the activated carbon adsorption box and located on the left side of the exhaust pipeline. The primary filter screen, the activated carbon fiber cotton layer and the emission concentration detector are arranged and are matched with one another, so that the waste gas filtering and adsorbing effects can be improved, the gas emission concentration can be detected, and the functionality is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to an adsorption and desorption + CO system with fresh air desorption. Background Technique

[0002] The adsorption and desorption + catalytic oxidation system is an efficient gas purification technology, mainly used for treating low-concentration volatile organic compounds. This system adsorbs and concentrates pollutants, and after desorption, catalytic oxidation decomposition is carried out to achieve efficient purification and energy recovery.

[0003] In the existing adsorption and desorption + CO system with fresh air desorption, during use, due to the single and simple adsorption and filtration structure, the filtration and adsorption effects are not good, and the gas emission concentration cannot be detected, resulting in weak functionality and inconvenience for timely adjustment. Therefore, there is an urgent need for an adsorption and desorption + CO system with fresh air desorption to solve the above technical problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an adsorption and desorption + CO system with fresh air desorption to solve the problems in the above background technique that in the existing adsorption and desorption + CO system with fresh air desorption, during use, due to the single and simple adsorption and filtration structure, the filtration and adsorption effects are not good, and the gas emission concentration cannot be detected, resulting in weak functionality and inconvenience for timely adjustment.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fresh air desorption adsorption + CO system, including an activated carbon adsorption box, a flame arrester is arranged on the right side of the activated carbon adsorption box, a heat exchanger is arranged on the right side of the flame arrester, a desorption fan is arranged on the right side of the heat exchanger, an adsorption main fan is arranged at the lower right of the heat exchanger, a chimney is arranged on the right side of the desorption fan, a cold supplement fan is arranged directly above the chimney, an exhaust gas input pipe is connected to the top of the activated carbon adsorption box, an exhaust pipe is arranged at the middle of the bottom of the activated carbon adsorption box, a first conveying pipe is arranged at the bottom of the activated carbon adsorption box and on the left side of the exhaust pipe, the end of the first conveying pipe is connected to the flame arrester, one end of the flame arrester is connected to the heat exchanger, one end of the heat exchanger is connected to the desorption fan through a second conveying pipe, one end of the cold supplement fan is connected to the activated carbon adsorption box through a third conveying pipe, one end of the desorption fan is connected to the third conveying pipe through a fourth conveying pipe, one side of the fourth conveying pipe is connected to the chimney through a fifth conveying pipe, one side of the third conveying pipe is connected to the first conveying pipe through a sixth conveying pipe, a catalytic cold supplement pipe is connected to one side of the first conveying pipe, one end of the adsorption main fan is connected to the chimney through a seventh conveying pipe, an initial effect filter screen is installed inside the activated carbon adsorption box, an activated carbon fiber cotton layer is arranged below the initial effect filter screen, an activated carbon adsorption layer is arranged directly below the activated carbon fiber cotton layer, and an emission concentration detector is installed on the exhaust pipe.

[0007] As a preferred technical solution of the present utility model, a first valve is installed on the exhaust gas input pipe.

[0008] As a preferred technical solution of the present utility model, a second valve is installed on the first conveying pipe.

[0009] As a preferred technical solution of the present utility model, a preheating bypass valve is installed on the sixth conveying pipe.

[0010] As a preferred technical solution of the present utility model, a catalytic cold supplement valve is installed on the catalytic cold supplement pipe.

[0011] As a preferred technical solution of the present utility model, a third valve and a fourth valve are respectively installed at both ends of the third conveying pipe, a fifth valve is installed on the fifth conveying pipe, and a sixth valve is installed on the exhaust pipe.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] The utility model improves the filtering and adsorption effects on waste gas by setting up a primary filter, an activated carbon fiber cotton layer and an emission concentration detector, and can detect the gas emission concentration through their mutual cooperation, thus enhancing the functionality and facilitating timely adjustment. Brief Description of the Drawings

[0014] Other features, objectives and advantages of the present application will become more apparent by reading the detailed description of the non-restrictive embodiments with reference to the following drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0017] Figure 3 For the utility model Figure 1 It is an enlarged schematic diagram of the structure at A in the utility model.

[0018] In the figure: 1, activated carbon adsorption box; 2, flame arrester; 3, heat exchanger; 4, adsorption main fan; 5, chimney; 6, desorption fan; 7, cold supplement fan; 8, waste gas input pipeline; 9, exhaust pipeline; 10, first conveying pipeline; 11, second conveying pipeline; 12, fourth conveying pipeline; 13, fifth conveying pipeline; 14, third conveying pipeline; 15, sixth conveying pipeline; 16, catalytic cold supplement pipeline; 17, first valve; 18, second valve; 19, preheating bypass valve; 20, catalytic cold supplement valve; 21, third valve; 22, fourth valve; 23, fifth valve; 24, emission concentration detector; 25, sixth valve; 26, primary filter; 27, activated carbon fiber cotton layer; 28, activated carbon adsorption layer; 29, seventh conveying pipeline. Detailed Description of the Embodiment

[0019] The following further describes the present application in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model and do not limit the utility model. In addition, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings. In the drawings of the embodiments of the present utility model, different types of hatching lines are not marked according to the national standard, nor are the materials of the components required, but are used to distinguish the cross-sectional views of the components in the figure.

[0020] Please refer to Figures 1-3, a fresh air desorption adsorption desorption + CO system, including an activated carbon adsorption box 1. A flame arrester 2 is arranged on the right side of the activated carbon adsorption box 1. A heat exchanger 3 is arranged on the right side of the flame arrester 2. A desorption fan 6 is arranged on the right side of the heat exchanger 3. An adsorption main fan 4 is arranged at the lower right of the heat exchanger 3. A chimney 5 is arranged on the right side of the desorption fan 6. A cold supplement fan 7 is arranged directly above the chimney 5. The top of the activated carbon adsorption box 1 is connected to an exhaust gas input pipe 8. The middle of the bottom of the activated carbon adsorption box 1 is provided with an exhaust pipe 9. The bottom of the activated carbon adsorption box 1 and on the left side of the exhaust pipe 9 is provided with a first conveying pipe 10. The end of the first conveying pipe 10 is connected to the flame arrester 2. One end of the flame arrester 2 is connected to the heat exchanger 3. One end of the heat exchanger 3 is connected to the desorption fan 6 through a second conveying pipe 11. One end of the cold supplement fan 7 is connected to the activated carbon adsorption box 1 through a third conveying pipe 14. One end of the desorption fan 6 is connected to the third conveying pipe 14 through a fourth conveying pipe 12. One side of the fourth conveying pipe 12 is connected to the chimney 5 through a fifth conveying pipe 13. One side of the third conveying pipe 14 is connected to the first conveying pipe 10 through a sixth conveying pipe 15. One side of the first conveying pipe 10 is connected to a catalytic cold supplement pipe 16. One end of the adsorption main fan 4 is connected to the chimney 5 through a seventh conveying pipe 29. An initial effect filter screen 26 is installed inside the activated carbon adsorption box 1. Below the initial effect filter screen 26 is provided with an activated carbon fiber cotton layer 27. Directly below the activated carbon fiber cotton layer 27 is provided with an activated carbon adsorption layer 28. A discharge concentration detector 24 is installed on the exhaust pipe 9.

[0021] Among them, a first valve 17 is installed on the exhaust gas input pipe 8.

[0022] Among them, a second valve 18 is installed on the first conveying pipe 10.

[0023] Among them, a preheating bypass valve 19 is installed on the sixth conveying pipe 15.

[0024] Among them, a catalytic cold supplement valve 20 is installed on the catalytic cold supplement pipe 16.

[0025] Among them, third valves 21 and fourth valves 22 are respectively installed at both ends of the third conveying pipe 14. A fifth valve 23 is installed on the fifth conveying pipe 13. A sixth valve 25 is installed on the exhaust pipe 9.

[0026] Working principle and usage process of the utility model: First, primary filtration is carried out through the primary filter screen 26 in the activated carbon adsorption box 1, and then through the activated carbon fiber cotton layer 27 and the activated carbon adsorption layer 28. The activated carbon with multiple pores is used to adsorb pollutants in the waste gas, and the purified gas is discharged up to the standard. Through the primary filter screen 26, the activated carbon fiber cotton layer 27 and the activated carbon adsorption layer 28 in the activated carbon adsorption box 1, the filtration and adsorption effects on the waste gas can be improved. The adsorbent is regenerated by heating, releasing high-concentration pollutants. The desorbed pollutants react with oxygen under the action of a catalyst to generate carbon dioxide and water. Fresh air is input through the make-up cooling fan 7. The emission concentration after filtration and adsorption in the activated carbon adsorption box 1 can be detected by the emission concentration detector 24. The functionality is enhanced and it is convenient to make timely adjustments. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0027] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principle. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solution formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A fresh air desorption adsorption + CO system, comprising an activated carbon adsorption box (1), characterized in that: A flame arrester (2) is arranged on the right side of the activated carbon adsorption box (1), a heat exchanger (3) is arranged on the right side of the flame arrester (2), a desorption fan (6) is arranged on the right side of the heat exchanger (3), an adsorption main fan (4) is arranged at the lower right of the heat exchanger (3), a chimney (5) is arranged on the right side of the desorption fan (6), a supplementary cooling fan (7) is arranged directly above the chimney (5), and an exhaust gas input pipeline (8) is connected to the top of the activated carbon adsorption box (1). An exhaust pipe (9) is provided at the middle of the bottom of the activated carbon adsorption box (1), and a first delivery pipe (10) is provided at the bottom of the activated carbon adsorption box (1) and on the left side of the exhaust pipe (9). The end of the first delivery pipe (10) is connected to the flame arrester (2), one end of the flame arrester (2) is connected to the heat exchanger (3), one end of the heat exchanger (3) is connected to the desorption fan (6) through the second delivery pipe (11), and the supplementary cooling fan (7) is connected to the desorption fan (6). One end of the desorption fan (6) is connected to the activated carbon adsorption box (1) through a third delivery pipe (14), one end of the desorption fan (6) is connected to the third delivery pipe (14) through a fourth delivery pipe (12), one side of the fourth delivery pipe (12) is connected to the chimney (5) through a fifth delivery pipe (13), one side of the third delivery pipe (14) is connected to the first delivery pipe (10) through a sixth delivery pipe (15), one side of the first delivery pipe (10) is connected to a catalytic cooling pipe (16), one end of the adsorption main fan (4) is connected to the chimney (5) through a seventh delivery pipe (29), a primary filter (26) is installed inside the activated carbon adsorption box (1), an activated carbon fiber cotton layer (27) is arranged below the primary filter (26), and an activated carbon adsorption layer (28) is arranged directly below the activated carbon fiber cotton layer (27), and an emission concentration detector (24) is installed on the exhaust pipe (9).

2. The adsorption desorption + CO system for fresh air desorption according to claim 1 is characterized by: A first valve (17) is installed on the exhaust gas input pipe (8).

3. The adsorption desorption + CO system for fresh air desorption according to claim 1 is characterized in that: A second valve (18) is installed on the first delivery pipeline (10).

4. The adsorption desorption + CO system for fresh air desorption according to claim 1 is characterized in that: A preheating bypass valve (19) is installed on the sixth delivery pipeline (15).

5. The adsorption desorption + CO system for fresh air desorption according to claim 1 is characterized by: A catalytic cooling supplement valve (20) is installed on the catalytic cooling supplement pipeline (16).

6. The adsorption desorption + CO system for fresh air desorption according to claim 1 is characterized by: A third valve (21) and a fourth valve (22) are respectively installed at both ends of the third delivery pipeline (14), a fifth valve (23) is installed on the fifth delivery pipeline (13), and a sixth valve (25) is installed on the exhaust pipeline (9).

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