VOCS adsorption and catalysis integrated equipment

Abstract

The utility model discloses VOCS (volatile organic compounds) adsorption and catalysis integrated equipment and belongs to the field of environmental protection and waste gas treatment. VOCS adsorption and catalysis integrated equipment comprises a box body, and the interior of the box body is sequentially divided into a spraying bin, a filtering bin, an adsorption bin, a heat exchange bin, a heating bin and a catalysis bin; according to the VOCS organic waste gas treatment device, the spraying mechanism, the dry type filtering mechanism, the activated carbon layer, the desorption mechanism, the heat exchange bin, the heating bin, the catalysis bin and other components are arranged in the box body, the overall structure is small in occupied area, all the components are matched with one another, and according to the two basic principles of adsorption and catalytic combustion, comprehensive and efficient treatment on VOCS organic waste gas is achieved; the waste gas treatment equipment has the advantages that pollutants such as odor, dust and paint mist in waste gas are effectively removed, organic substances are converted into harmless substances through catalytic decomposition, the purpose of environment-friendly emission is achieved, meanwhile, the equipment has the advantages of being high in resource utilization rate, easy and convenient to operate and maintain and the like, and the waste gas treatment efficiency and economic benefits are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection and waste gas treatment, in particular to a VOCS adsorption catalysis integrated device. Background Art

[0002] VOCS, or volatile organic compounds, refer to organic compounds that are volatile at room temperature and have the characteristics of low boiling point, small molecular weight and high saturated vapor pressure. They are widely present in the atmosphere and mainly come from industrial processes such as coal chemical industry and petrochemical industry. They are important precursors of photochemical smog and haze. Most VOCS have a special smell, and some are toxic, irritating and carcinogenic, posing a threat to human health and environmental quality. Therefore, emission control of VOCS is crucial for environmental protection.

[0003] Through research and analysis, it is found that the existing technology has many shortcomings in treating VOCS organic waste gas. Its treatment process is often too simple, only treating a certain component in the waste gas, and it is difficult to achieve comprehensive purification of multiple pollutants in the waste gas. At the same time, the efficiency of traditional treatment methods is not high, resulting in a long treatment cycle and limited effect. In addition, the operation and maintenance of the equipment are relatively complicated, which brings additional troubles to users and further increases the cost of use and management difficulty. Therefore, the development of a technology that can comprehensively, efficiently and economically treat VOCS organic waste gas has become an urgent problem to be solved in the current waste gas treatment field. Utility Model Content

[0004] The purpose of this utility model is to provide a VOCS adsorption catalysis integrated device to solve the problems raised in the background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A VOCS adsorption catalysis integrated device comprises: a box body, wherein five partition plates are arranged at intervals in the box body, and an electric valve is fixed on the partition plate, which is used to divide the box body into a spray chamber, a filter chamber, an adsorption chamber, a heat exchange chamber, a heating chamber, and a catalytic chamber in sequence; an air inlet pipe is fixed on one side of the box body and is connected to the spray chamber; an exhaust pipe 1 is fixed on the other side of the box body and is connected to the catalytic chamber; an exhaust pipe 2 is connected to the outside of the adsorption chamber; a spray mechanism is fixed on the top of the spray chamber; a dry filter mechanism is fixed vertically in the filter chamber; an activated carbon layer is fixed horizontally in the adsorption chamber; a desorption mechanism is installed on the top of the adsorption chamber; a heat exchanger is fixed in the heat exchange chamber; a burner is fixed on the top of the heating chamber; and a catalytic bed is fixed in the catalytic chamber.

[0007] Furthermore, universal wheels are fixedly mounted on four top corners of the bottom of the box body, and a drainage pipe is connected to the outside of the catalytic bin.

[0008] Furthermore, a fan 1 is correspondingly installed and fixed on the air inlet pipe, the exhaust pipe 1, and the exhaust pipe 2.

[0009] Furthermore, a liquid storage tank is provided on the spray mechanism, and the liquid storage tank is fixed on the upper surface of the box body. The output end of the liquid storage tank is connected to a nozzle through an infusion pipe, and the nozzle is located at the top of the spray chamber. A filter screen is provided directly below the nozzle, and the filter screen is fixed to the bottom of the spray chamber. The input end of the liquid storage tank is connected to a circulation pipe, and the circulation pipe is connected to the bottom of the spray chamber and the connection node is located on the lower side of the filter screen. A liquid pump is installed and fixed on the circulation pipe.

[0010] Furthermore, the dry filtering mechanism is provided with an outer frame, the outer frame is fixed to the inner side of the filter bin, a filter screen is slidably connected to the outer frame, a handle is fixed to the outer side of the filter screen, a plurality of springs are fixed in the outer frame in a vertical direction away from the handle, and corresponding portions of the outer frame and the upper side of the filter screen are pre-set with plug-in holes, and fixing bolts are fixed in the plug-in holes by plugging.

[0011] Furthermore, the desorption mechanism includes a second fan and a fresh air heat exchange device which are interconnected, and the fresh air heat exchange device is connected to the top of the adsorption bin.

[0012] Furthermore, an inspection door is rotatably connected to the outer side of the adsorption bin, and the inspection door corresponds to the position of the activated carbon layer.

[0013] Compared with the prior art, the utility model provides a VOCS adsorption catalysis integrated device, which has the following beneficial effects:

[0014] In the utility model, by arranging the spray mechanism, dry filtering mechanism, activated carbon layer, desorption mechanism, heat exchange chamber, heating chamber and catalytic chamber and other components in the box body, the overall structure occupies a small area, and the various components cooperate with each other. According to the two basic principles of adsorption and catalytic combustion, the comprehensive and efficient treatment of VOCS organic waste gas is realized, and the odor, dust, paint mist and other pollutants in the waste gas are effectively removed. The organic matter is converted into harmless substances through catalytic decomposition, and the purpose of environmentally friendly emission is achieved. At the same time, the equipment also has the advantages of high resource utilization, simple operation and maintenance, etc., which significantly improves the efficiency and economic benefits of waste gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural diagram of a VOCS adsorption catalysis integrated device proposed by the utility model;

[0016] Figure 2 This is a rear view structural diagram of a VOCS adsorption catalysis integrated device proposed by the utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of a VOCS adsorption catalysis integrated device proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the spray mechanism structure of a VOCS adsorption catalysis integrated device proposed by the utility model;

[0019] Figure 5 This is a schematic diagram of the dry filtering mechanism structure of a VOCS adsorption catalysis integrated device proposed by the utility model.

[0020] In the figure: 1. Box body; 11. Spray chamber; 12. Filter chamber; 13. Adsorption chamber; 14. Heat exchange chamber; 15. Heating chamber; 16. Catalytic chamber; 2. Partition plate; 21. Electric valve; 3. Inlet pipe; 31. Fan 1; 4. Spray mechanism; 40. Filter screen; 41. Liquid storage tank; 42. Infusion tube; 43. Nozzle; 44. Circulation pipe; 45. Liquid pump; 5. Dry filter mechanism; 51. Outer frame; 52. Filter screen; 53. Handle; 54. Fixing bolt; 55. Spring; 6. Activated carbon layer; 60. Desorption mechanism; 61. Fan 2; 62. Fresh air heat exchange device; 63. Inspection door; 7. Heat exchanger; 8. Burner; 9. Catalytic bed; 101. Exhaust pipe 1; 102. Exhaust pipe 2. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Embodiment 1:

[0024] Reference Figure 1-5A VOCS adsorption catalysis integrated device comprises: a box body 1, five partition plates 2 are arranged at intervals in the box body 1, and an electric valve 21 is fixed on the partition plate 2, which is used to divide the box body 1 into a spray chamber 11, a filter chamber 12, an adsorption chamber 13, a heat exchange chamber 14, a heating chamber 15, and a catalytic chamber 16 in sequence. An air inlet pipe 3 is fixed on one side of the box body 1 and is connected to the spray chamber 11, an exhaust pipe 101 is fixed on the other side of the box body 1 and is connected to the catalytic chamber 16, and an exhaust pipe 2 102 is connected to the outside of the adsorption chamber 13. A spray mechanism 4 is fixed on the top of the spray chamber 11, a dry filter mechanism 5 is fixed vertically in the filter chamber 12, an activated carbon layer 6 is fixed horizontally in the adsorption chamber 13, a desorption mechanism 60 is installed on the top of the adsorption chamber 13, a heat exchanger 7 is fixed in the heat exchange chamber 14, a burner 8 is fixed on the top of the heating chamber 15, and a catalytic bed 9 is fixed in the catalytic chamber 16.

[0025] Universal wheels are fixedly mounted on the four top corners of the bottom of the box body 1, and a drainage pipe is connected to the outside of the catalytic bin 16;

[0026] like Figure 1 The four sets of universal wheels at the bottom of the box body 1 facilitate the operator to move the device horizontally as a whole, thereby reducing the cost of manual handling. The valve on the drainage pipe outside the catalytic bin 16 can be opened to discharge the water formed after catalytic decomposition in the catalytic bin 16.

[0027] A fan 31 is correspondingly installed and fixed on the air inlet pipe 3, the exhaust pipe 1 101, and the exhaust pipe 2 102.

[0028] The spray mechanism 4 is provided with a liquid storage tank 41, which is fixed to the upper surface of the box body 1. The output end of the liquid storage tank 41 is connected to a nozzle 43 through a liquid infusion tube 42. The nozzle 43 is located at the top of the spray bin 11. A filter screen 40 is provided directly below the nozzle 43. The filter screen 40 is fixed to the bottom of the spray bin 11. The input end of the liquid storage tank 41 is connected to a circulation pipe 44. The circulation pipe 44 is connected to the bottom of the spray bin 11 and the connection node is located at the lower side of the filter screen 40. A liquid pump 45 is installed and fixed on the circulation pipe 44.

[0029] like Figure 3 , Figure 4 As shown, opening the regulating valve at the infusion pipe 42 on the spray mechanism 4 allows the aqueous solution in the liquid storage tank 41 to be sprayed downward through the infusion pipe 42 and the nozzle 43. The sprayed aqueous solution can initially filter the odor, dust and paint mist of the VOCS organic waste gas in the spray bin 11. The generated wastewater falls and is filtered through the filter screen 40. The filtered aqueous solution is precipitated at the bottom of the spray bin 11. Starting the liquid pump 45 can circulate the aqueous solution at the bottom of the spray bin 11 into the liquid storage tank 41, thereby realizing the recycling of the aqueous solution and effectively saving water resources.

[0030] Embodiment 2:

[0031] The difference between this embodiment and embodiment 1 is that:

[0032] The dry filter mechanism 5 is provided with an outer frame 51, which is fixed to the inner side of the filter bin 12, and a filter screen 52 is slidably connected to the outer frame 51, and a handle 53 is fixed to the outer side of the filter screen 52. A plurality of springs 55 are fixed in the outer frame 51 in a vertical direction away from the handle 53. The corresponding parts of the upper sides of the outer frame 51 and the filter screen 52 are preset with plug holes, and a fixing bolt 54 is fixed in the plug hole by plugging; Figure 5 As shown, when the filter 52 in the outer frame 51 needs to be replaced, the fixing bolt 54 in the plug-in hole can be pulled out upwards, and under the action of the outward elastic restoring force of the spring 55, the filter 52 can be popped out from the outer frame 51, and the operator can quickly pull out the filter 52 through the handle 53, so as to clean the dust particles accumulated on the filter 52. After cleaning, the filter 52 is inserted into the outer frame 51, and the fixing bolt 54 is used to align the plug-in holes on the outer frame 51 and the filter 52, so that the filter 52 can be installed and fixed in the outer frame 51, thereby effectively ensuring the filtering effect of the filter 52.

[0033] like Figure 2 As shown, the desorption mechanism 60 includes a fan 61 and a fresh air heat exchange device 62 which are interconnected. The fresh air heat exchange device 62 is connected to the top of the adsorption bin 13.

[0034] The outer side of the adsorption chamber 13 is rotatably connected with an inspection door 63, and the inspection door 63 corresponds to the position of the activated carbon layer 6; Figure 1 As shown, the inspection door 63 is opened to facilitate the operator to clean, inspect or replace the activated carbon layer 6 in the adsorption bin 13.

[0035] Working principle: The utility model treats VOCS waste gas according to the two basic principles of adsorption and catalytic combustion, that is, adsorption concentration-catalytic combustion method. During the working process, the gas containing organic waste gas enters the spray bin 11 through the air inlet pipe 3 through the action of the fan 31, and the odor, dust, paint mist, etc. in the organic waste gas can be removed by the action of the aqueous solution sprayed by the nozzle 43 on the spray mechanism 4, thereby achieving the effect of preliminary filtration. The electric valve 21 on the partition plate 2 between the spray bin 11 and the filter bin 12 is opened, and the preliminary filtered VOCS gas enters the filter bin 12, and the water vapor, oil mist, and dust particles in the gas are filtered through the dry filter mechanism 5. Subsequently, the gas enters the adsorption bin 13 through the electric valve 21 on the partition plate 2 between the filter bin 12 and the adsorption bin 13. The activated carbon layer 6 can adsorb organic substances in the gas, and the clean gas is discharged outward after the fan 31 on the exhaust pipe 102 is turned on;

[0036] When the activated carbon layer 6 is saturated, it stops adsorbing the organic matter in the gas and needs to be desorbed. The fan 2 61 on the desorption mechanism 60 is started, and the fan 2 61 sends fresh air into the fresh air heat exchange device 62. The fresh air heat exchange device 62 heats the air to a predetermined value and then discharges it into the adsorption bin 13 to purge the activated carbon layer 6 in the adsorption bin 13. The purged high-concentration VOCS organic waste gas enters the heat exchange bin 14 through the electric valve 21 between the adsorption bin 13 and the heat exchange bin 14 for preheating. The preheated gas enters the heating bin 15 through the electric valve 21 between the heat exchange bin 14 and the heating bin 15 to be burned by the burner 8. Finally, the burned gas enters the catalytic bin 16 through the electric valve 21 between the heating bin 15 and the catalytic bin 16 to be catalytically decomposed by the catalytic bed 9 to be decomposed into water and carbon dioxide, so that the gas is further purified. When the exhaust gas reaches the emission standard, the fan 131 on the exhaust pipe 101 is started to discharge the gas in the catalytic bin 16 to the outside.

Claims

1. A VOCS adsorption catalysis integrated device, comprising: The box (1) is characterized in that five partition plates (2) are arranged at intervals in the box (1), and an electric valve (21) is fixed on the partition plate (2) for dividing the box (1) into a spray chamber (11), a filter chamber (12), an adsorption chamber (13), a heat exchange chamber (14), a heating chamber (15), and a catalytic chamber (16) in sequence; an air intake pipe (3) is fixed on one side of the box (1) and is connected to the spray chamber (11); an exhaust pipe (101) is fixed on the other side of the box (1) and is connected to the catalytic chamber (16); The outer side of the adsorption chamber (13) is connected to an exhaust pipe 2 (102), a spray mechanism (4) is fixed on the top of the spray chamber (11), a dry filter mechanism (5) is fixed vertically in the filter chamber (12), an activated carbon layer (6) is fixed horizontally in the adsorption chamber (13), a desorption mechanism (60) is installed on the top of the adsorption chamber (13), a heat exchanger (7) is fixed in the heat exchange chamber (14), a burner (8) is fixed on the top of the heating chamber (15), and a catalyst bed (9) is fixed in the catalyst chamber (16).

2. The VOCS adsorption catalysis integrated device according to claim 1, characterized in that: Universal wheels are fixedly mounted on the four top corners of the bottom of the box body (1), and a drainage pipe is provided on the outside of the catalytic bin (16).

3. The VOCS adsorption catalysis integrated device according to claim 1, characterized in that: The air inlet pipe (3), the exhaust pipe one (101), and the exhaust pipe two (102) are each correspondingly mounted and fixed with a fan one (31).

4. The VOCS adsorption catalysis integrated device according to claim 1, characterized in that: The spray mechanism (4) is provided with a liquid storage tank (41), the liquid storage tank (41) is fixed to the upper surface of the box body (1), the output end of the liquid storage tank (41) is connected to a nozzle (43) through a liquid infusion pipe (42), the nozzle (43) is located at the top of the spray chamber (11), a filter screen (40) is provided directly below the nozzle (43), the filter screen (40) is fixed to the bottom of the spray chamber (11), the input end of the liquid storage tank (41) is connected to a circulation pipe (44), the circulation pipe (44) is connected to the bottom of the spray chamber (11) and the connection node is located at the lower side of the filter screen (40), and a liquid pump (45) is installed and fixed on the circulation pipe (44).

5. The VOCS adsorption catalysis integrated device according to claim 1, characterized in that: The dry filtering mechanism (5) is provided with an outer frame (51), the outer frame (51) is fixed to the inner side of the filtering chamber (12), a filter screen (52) is slidably connected to the inner side of the outer frame (51), a handle (53) is fixed to the outer side of the filter screen (52), a plurality of springs (55) are fixed in the outer frame (51) in a vertical direction away from the handle (53), corresponding parts of the upper sides of the outer frame (51) and the filter screen (52) are preset with plug-in holes, and a fixing bolt (54) is fixed in the plug-in hole by plugging.

6. The VOCS adsorption catalysis integrated device according to claim 1, characterized in that: The desorption mechanism (60) comprises a second fan (61) and a fresh air heat exchange device (62) which are connected to each other, and the fresh air heat exchange device (62) is connected to the top of the adsorption bin (13).

7. The VOCS adsorption catalysis integrated device according to claim 6, characterized in that: An inspection door (63) is rotatably connected to the outer side of the adsorption bin (13), and the inspection door (63) corresponds to the position of the activated carbon layer (6).

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