Heat accumulating type catalytic combustion equipment

Abstract

The utility model provides heat accumulating type catalytic combustion equipment, and belongs to the technical field of organic waste gas treatment. The problems that heat energy cannot be recycled, energy conservation and environmental protection are not enough, and the organic waste gas treatment efficiency is low are solved. The heat accumulating type catalytic combustion equipment comprises a base plate, a mounting bottom frame is welded to the top of the base plate, the top of the mounting bottom frame is sequentially connected with a paint mist prefilter, a catalytic combustion bed, an activated carbon adsorption bed and a discharge fan through bolts from left to right, and the right side of the paint mist prefilter is connected with a connecting air pipe through a bolt; the bottom of the air inlet valve is connected with a fixed air pipe, and the rear side and the right side of the catalytic combustion bed fixedly communicate with a T-shaped pipe and a second valve correspondingly. The device has a heat energy recycling function, is more energy-saving and environment-friendly, and has the advantages that the organic waste gas treatment efficiency can be improved due to the design of a plurality of activated carbon adsorption chambers.

Description

Technical Field

[0001] The utility model belongs to the technical field of organic waste gas treatment and relates to heat storage type catalytic combustion equipment. Background Art

[0002] Organic waste gas treatment refers to the adsorption, filtration and purification of organic waste gas generated in the industrial production process. Usually, organic waste gas treatment includes formaldehyde organic waste gas treatment, benzene, toluene, xylene and other benzene-related organic waste gas treatment, and acetone butanone organic waste gas treatment.

[0003] Traditionally, catalytic combustion equipment is mostly required in the treatment process of organic waste gas containing paint mist in paint spraying workshops. The current catalytic combustion equipment cannot recycle and reuse the high-temperature air after catalysis during the catalysis of organic matter on the activated carbon, and cannot preheat the organic waste gas, which results in a large amount of heat energy wasted and poor energy-saving and environmental protection effects. In addition, the number of activated carbon adsorption chambers is small, resulting in low efficiency in treating organic waste gas. Summary of the invention

[0004] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to provide a heat storage catalytic combustion device with the function of heat recovery and reuse, which is more energy-saving and environmentally friendly and improves the efficiency of organic waste gas treatment.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a heat storage catalytic combustion equipment, including a base plate, a mounting frame welded on the top of the base plate, a paint mist pre-filter, a catalytic combustion bed, an activated carbon adsorption bed and an exhaust fan are bolted to the top of the mounting frame from left to right, a connecting air duct is bolted to the right side of the paint mist pre-filter, an air inlet valve is fixedly connected to the bottom of the connecting air duct, a fixed air duct is connected to the bottom of the air inlet valve, a T-tube and a second valve are fixedly connected to the rear and right sides of the catalytic combustion bed respectively, a first fan is fixedly connected to the right side of the T-tube, an air inlet pipe is fixedly connected to the right side of the first fan, a first valve is fixedly connected to the surface of the air inlet pipe, the first and second air ducts are fixedly connected to the front and rear sides of the second valve respectively, a third valve is fixedly connected to the surface of the second air duct, and an exhaust pipe is connected to the top of the activated carbon adsorption bed.

[0006] The heat storage catalytic combustion equipment mainly arranges a first valve, an air inlet pipe, a second valve, a first air duct, a second air duct, a fourth valve and a third valve on the activated carbon adsorption bed. The heat energy can be recovered and reused through the first valve, the air inlet pipe, the second valve, the first air duct, the second air duct, the fourth valve and the third valve, which is more energy-saving and environmentally friendly. At the same time, the design of multiple activated carbon adsorption chambers can improve the efficiency of organic waste gas treatment.

[0007] In the above-mentioned regenerative catalytic combustion equipment, the activated carbon adsorption bed includes an adsorption box, the top of the adsorption box is connected to an exhaust valve, the bottom of the exhaust pipe is fixedly connected to the exhaust valve, the front side of the adsorption box is fixedly connected to a first box door, the bottom of the front side of the adsorption box is welded to a mounting pipe, the rear side of the first valve is connected to the mounting pipe, and the four corners of the bottom of the adsorption box are fixedly connected to support columns. In practical applications, by providing the first box door, the adsorption box can be opened from the front, which is convenient for repairing and replacing the parts inside the box.

[0008] In the above-mentioned regenerative catalytic combustion equipment, the right side of the exhaust pipe is fixedly connected to the exhaust fan, and the front side of the third valve is fixedly connected to the activated carbon adsorption bed. In practical applications, by setting the third valve, the desorbed organic matter can be opened to flow into the second air duct.

[0009] In the above-mentioned regenerative catalytic combustion equipment, the top of the first air duct is connected with a fourth valve, and the right side of the fourth valve is fixedly connected with the exhaust duct. In practical applications, by setting the fourth valve, the left side of the exhaust duct can be opened and closed, so that the catalyzed air flows into the exhaust duct and is discharged.

[0010] In the above-mentioned regenerative catalytic combustion equipment, the front side of the fixed air duct is fixedly connected to the activated carbon adsorption bed, and the left side of the T-tube is fixedly connected to a second fan. In practical applications, by setting up the second fan, it is convenient to add external cold air into the catalytic combustion bed.

[0011] In the above-mentioned regenerative catalytic combustion equipment, the rear side of the left side of the top of the mounting chassis is connected to a PLC control box by bolts, the front side of the paint mist pre-filter is fixedly connected to a second box door, and the left side of the paint mist pre-filter is welded and connected to a connecting flange. In practical applications, by setting the connecting flange, the paint mist pre-filter can be conveniently connected to the external organic waste gas delivery pipe.

[0012] In the above-mentioned regenerative catalytic combustion equipment, a chimney is fixedly connected to the right side of the top of the base plate, and the air outlet end of the exhaust fan is connected to the chimney.

[0013] Compared with the existing technology, the advantages of this heat storage catalytic combustion equipment are: it has the function of heat recovery and reuse during the working process, is more energy-saving and environmentally friendly, and the design of multiple activated carbon adsorption chambers can improve the efficiency of organic waste gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an axonometric diagram of the heat storage catalytic combustion equipment.

[0015] Figure 2 It is an axonometric diagram of the activated carbon adsorption bed of the heat storage catalytic combustion equipment.

[0016] Figure 3 It is a rear axonometric view of the regenerative catalytic combustion equipment.

[0017] In the figure: 1. base plate; 2. chimney; 3. exhaust fan; 4. mounting frame; 5. first valve; 6. activated carbon adsorption bed; 7. air inlet pipe; 8. connecting air duct; 9. paint mist pre-filter; 10. second box door; 11. connecting flange; 12. PLC control box; 13. catalytic combustion bed; 14. second valve; 15. first air duct; 16. second air duct; 17. fourth valve; 18. third valve; 19. exhaust duct; 20. adsorption box; 21. exhaust valve; 22. first box door; 23. mounting pipe; 24. support column; 25. air inlet valve; 26. fixed air duct; 27. first fan; 28. T-tube; 29. ​​second fan. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the regenerative catalytic combustion equipment comprises a base plate 1, a mounting frame 4 is welded on the top of the base plate 1, a paint mist pre-filter 9, a catalytic combustion bed 13, an activated carbon adsorption bed 6 and an exhaust fan 3 are connected to the top of the mounting frame 4 from left to right in sequence by bolts, a connecting air duct 8 is connected to the right side of the paint mist pre-filter 9 by bolts, an air inlet valve 25 is fixedly connected to the bottom of the connecting air duct 8, a fixed air duct 26 is connected to the bottom of the air inlet valve 25, a T-tube 28 and a second valve 14 are fixedly connected to the rear and right sides of the catalytic combustion bed 13 respectively, a first fan 27 is fixedly connected to the right side of the T-tube 28, an air inlet pipe 7 is fixedly connected to the right side of the first fan 27, a first valve 5 is fixedly connected to the surface of the air inlet pipe 7, a first air duct 15 and a second air duct 16 are fixedly connected to the front and rear sides of the second valve 14 respectively, a third valve 18 is fixedly connected to the surface of the second air duct 16, and an exhaust pipe 19 is connected to the top of the activated carbon adsorption bed 6;

[0020] In actual manufacturing, the activated carbon adsorption bed 6 includes an adsorption box 20, the top of the adsorption box 20 is connected to an exhaust valve 21, the bottom of the exhaust pipe 19 is fixedly connected to the exhaust valve 21, the front side of the adsorption box 20 is fixedly connected to a first box door 22, the bottom of the front side of the adsorption box 20 is welded to a mounting pipe 23, the rear side of the first valve 5 is connected to the mounting pipe 23, and the four corners of the bottom of the adsorption box 20 are fixedly connected to support columns 24;

[0021] In actual manufacturing, the right side of the exhaust pipe 19 is fixedly connected to the exhaust fan 3, and the front side of the third valve 18 is fixedly connected to the activated carbon adsorption bed 6;

[0022] In actual manufacturing, the top of the first air duct 15 is connected to a fourth valve 17, and the right side of the fourth valve 17 is fixedly connected to the exhaust duct 19;

[0023] In actual manufacturing, the front side of the fixed air duct 26 is fixedly connected to the activated carbon adsorption bed 6, and the left side of the T-tube 28 is fixedly connected to the second fan 29;

[0024] In actual manufacturing, the rear side of the left side of the top of the mounting frame 4 is connected with a PLC control box 12 by bolts, the front side of the paint mist pre-filter 9 is fixedly connected with a second box door 10, and the left side of the paint mist pre-filter 9 is welded and connected with a connecting flange 11;

[0025] During actual manufacturing, a chimney 2 is fixedly connected to the right side of the top of the base plate 1 , and an air outlet end of the exhaust fan 3 is connected to the chimney 2 .

[0026] During actual manufacturing, the organic waste gas enters the paint mist pre-filter 9, and the internal filter cotton is used to filter the paint residue and some pollutants in the waste gas. Then, the pre-filtered waste gas flows into the activated carbon adsorption bed 6 on the far left through the connecting air duct 8, and the organic solvent in the waste gas is adsorbed by the activated carbon, so that the exhausted waste gas is purified, and the purified air is discharged through the chimney 2. When the activated carbon adsorption plate is saturated after long-term use, the exhaust valve 21 on the top of the leftmost activated carbon adsorption bed 6 and the air inlet valve 25 on the rear side are controlled to be closed, and the exhaust valve on the top of the middle activated carbon adsorption bed 6 is closed. 21 and the air inlet valve 25 at the rear are opened, so that the middle activated carbon adsorption bed 6 can continue to purify the organic waste gas, control the catalytic combustion bed 13 to work and generate hot air, and the first fan 27 works and opens the first valve 5 and the third valve 18 on the far left at the same time, and the high-temperature air is transported to the activated carbon adsorption bed 6 on the left through the air inlet pipe 7 to heat the carbon layer of the activated carbon bed to "evaporate" the organic matter from the activated carbon, and the desorbed waste gas is a high-concentration, small-volume, high-temperature organic waste gas, and the high-temperature waste gas enters the catalytic combustion bed 13 through the third valve 18 and the second air duct 16 at the rear. The waste gas undergoes a catalytic reaction in the exhaust gas, and after being filtered by a flame arrester dust collector, it enters a special plate heat exchanger to exchange energy with the high-temperature gas after the catalytic reaction. At this time, the temperature of the exhaust gas source is increased for the first time; the gas with a certain temperature enters the preheater for a second temperature increase; then it enters the first stage of catalytic reaction, at which time the organic waste gas is partially decomposed at a low temperature and releases energy, directly heating the waste gas source and raising the gas temperature to the optimal temperature for the catalytic reaction; after being detected by the temperature detection system, the temperature meets the temperature requirements for the catalytic reaction, and enters the catalytic combustion chamber, where the organic gas is completely decomposed. , while releasing a large amount of heat; the purified gas converts heat energy into a cold air flow through a heat exchanger, and the gas after cooling enters the exhaust pipe 19 after opening the fourth valve 17, and is finally discharged to the outside through the exhaust fan 3, so that the heat energy can be recovered and reused. When the activated carbon bed in the middle activated carbon adsorption bed 6 becomes saturated, the activated carbon adsorption bed 6 on the right is used according to the above operation to continue the adsorption purification, and the middle activated carbon adsorption bed 6 is desorbed. In this way, by setting up multiple activated carbon adsorption beds 6 for cyclic operation, the purification efficiency of organic waste gas can be effectively improved.

[0027] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A regenerative catalytic combustion device, comprising a base plate (1), characterized in that: A mounting frame (4) is welded to the top of the base plate (1), and a paint mist pre-filter (9), a catalytic combustion bed (13), an activated carbon adsorption bed (6) and an exhaust fan (3) are connected to the top of the mounting frame (4) from left to right in sequence by bolts. A connecting air duct (8) is connected to the right side of the paint mist pre-filter (9) by bolts, and an air inlet valve (25) is fixedly connected to the bottom of the connecting air duct (8). The bottom of the air inlet valve (25) is connected to a fixed air duct (26). The rear side and the right side of the catalytic combustion bed (13) are respectively fixed. A T-tube (28) and a second valve (14) are connected; the right side of the T-tube (28) is fixedly connected to a first fan (27); the right side of the first fan (27) is fixedly connected to an air inlet pipe (7); the surface of the air inlet pipe (7) is fixedly connected to a first valve (5); the front and rear sides of the second valve (14) are respectively fixedly connected to the first air duct (15) and the second air duct (16); the surface of the second air duct (16) is fixedly connected to a third valve (18); and the top of the activated carbon adsorption bed (6) is connected to an exhaust pipe (19).

2. The regenerative catalytic combustion equipment according to claim 1, characterized in that: The activated carbon adsorption bed (6) comprises an adsorption box (20), the top of the adsorption box (20) is connected to an exhaust valve (21), the bottom of the exhaust pipe (19) is fixedly connected to the exhaust valve (21), the front side of the adsorption box (20) is fixedly connected to a first box door (22), the bottom of the front side of the adsorption box (20) is welded to a mounting pipe (23), the rear side of the first valve (5) is connected to the mounting pipe (23), and the four corners of the bottom of the adsorption box (20) are fixedly connected to support columns (24).

3. The regenerative catalytic combustion equipment according to claim 1, characterized in that: The right side of the exhaust pipe (19) is fixedly connected to the exhaust fan (3), and the front side of the third valve (18) is fixedly connected to the activated carbon adsorption bed (6).

4. The regenerative catalytic combustion equipment according to claim 1, characterized in that: The top of the first air duct (15) is connected to a fourth valve (17), and the right side of the fourth valve (17) is fixedly connected to the exhaust duct (19).

5. The regenerative catalytic combustion equipment according to claim 1, characterized in that: The front side of the fixed air duct (26) is fixedly connected to the activated carbon adsorption bed (6), and the left side of the T-shaped tube (28) is fixedly connected to a second fan (29).

6. The regenerative catalytic combustion equipment according to claim 1, characterized in that: The rear side of the left side of the top of the mounting base (4) is connected to a PLC control box (12) by bolts, the front side of the paint mist pre-filter (9) is fixedly connected to a second box door (10), and the left side of the paint mist pre-filter (9) is welded to a connecting flange (11).

7. The regenerative catalytic combustion equipment according to claim 1, characterized in that: A chimney (2) is fixedly connected to the right side of the top of the base plate (1), and an air outlet end of the exhaust fan (3) is connected to the chimney (2).

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