CN218901336U - Waste gas adsorption catalytic combustion equipment - Google Patents

Abstract

The utility model is suitable for the field of waste gas treatment, and discloses waste gas adsorption catalytic combustion equipment which comprises a catalytic purification device, an adsorption device, a desorption fan, an adsorption fan, a fresh air fan, an air supplementing fan, an air inlet pipeline, an exhaust pipeline and a control box, wherein the catalytic purification device comprises a base, a catalytic box body, a heating heat exchanger, a catalytic bed and a heating element; the desorption fan is directly connected with the catalytic box body, and the desorption fan is connected with the catalytic box body without a connecting pipe, so that the connecting pipe is omitted, the integration level of the waste gas adsorption catalytic combustion equipment can be improved, the connecting pipe is omitted, and the leakage of waste gas can be reduced as much as possible.

Description

Waste gas adsorption catalytic combustion equipment

Technical Field

The utility model relates to the field of waste gas treatment, in particular to waste gas adsorption catalytic combustion equipment.

Background

The existing catalytic combustion equipment has the following problems that a catalytic purification device and a desorption fan are connected through a connecting pipe: first, compactness is inadequate; and secondly, waste gas leakage is likely to occur between the shell and the connecting pipe and between the connecting pipe and the catalytic box body, so that the possibility of waste gas leakage is increased.

Disclosure of Invention

The utility model aims to provide an exhaust gas adsorption catalytic combustion device, which aims to solve the technical problems that the existing catalytic combustion device is not compact enough, and exhaust gas leakage is likely to occur between a shell and a connecting pipe and between the connecting pipe and a catalytic box body.

In order to achieve the above purpose, the utility model provides the following scheme:

the catalytic purification device comprises a base, a catalytic box body, a heating heat exchanger, a catalytic bed and a heating element, wherein the catalytic box body is arranged on the base, the heating heat exchanger, the catalytic bed and the heating element are all arranged in the catalytic box body, the heating heat exchanger is connected with the heating element, the adsorption device comprises at least two independently arranged carbon boxes, the carbon boxes are provided with a first inlet, a second inlet, a first outlet and a second outlet, the first inlet is connected with the air inlet pipeline, the second inlet is connected with the air supplementing machine, the first outlet is connected with the inlet of the desorption fan, the outlet of the desorption fan is connected with the catalytic box body, the outlet of the catalytic box body is respectively connected with the air inlet pipeline and the exhaust pipeline, the second outlet is connected with the inlet of the adsorption fan, the outlet of the adsorption fan is connected with the exhaust pipeline, the outlet of the catalytic purification device is respectively connected with the air inlet pipeline and the exhaust pipeline, the desorption fan comprises a motor base, a motor, a shell and an impeller, the motor base is arranged on the base, the motor is arranged on the motor base, the shell is connected with the motor base, the outlet of the shell is arranged on the catalytic box body, the inlet of the shell is connected with the carbon box, the impeller is arranged in the shell and is connected with the motor, and the heating element, the desorption fan, the adsorption fan, the impeller and the catalytic box are respectively arranged on the base The fresh air blower and the air supplementing blower are electrically connected with the control box.

Preferably, the filter is further comprised, and an outlet of the filter is connected with an inlet of the air inlet pipeline.

Preferably, the filter comprises a filter box, a first mounting plate, a second mounting plate, a first filtering structure and a second filtering structure, wherein an air inlet and an air outlet are formed in the filter box, the first mounting plate and the second mounting plate are sequentially arranged in the direction from the air inlet to the air outlet, the first filtering structure is arranged on the first mounting plate, and the second filtering structure is arranged on the second mounting plate.

Preferably, the first mounting plate is a multi-folded plate, the first filtering structure comprises a plurality of first filtering parts, and the inclination angles of the plurality of first filtering parts are in one-to-one fit with the first mounting plate.

Preferably, the first filtering part comprises a first metal net frame, and a first filtering layer and a second filtering layer which are clamped in the first metal net frame, wherein the first filtering layer is primary filter cotton, and the second filtering layer is medium-efficiency filter cotton.

Preferably, the second mounting plate is a multi-folded plate, the second filtering structure comprises a plurality of second filtering parts, and the inclination angles of the second filtering parts are in one-to-one fit with the inclination angles of the second mounting plate.

Preferably, the second filtering part comprises a second metal net frame, and a third filtering layer and a fourth filtering layer which are clamped in the second metal net frame, wherein the third filtering layer is medium-efficiency filtering cotton, and the fourth filtering layer is high-efficiency filtering cotton.

Preferably, the filter box is provided with a differential pressure gauge.

Preferably, the first inlet is provided with a first switch valve, the first outlet is provided with a second switch valve, the second inlet is provided with a third switch valve, and the second outlet is provided with a fourth switch valve.

The waste gas adsorption catalytic combustion equipment provided by the utility model has the following advantages:

firstly, the waste gas adsorption catalytic combustion equipment is provided with a catalytic purification device and an adsorption device simultaneously, a carbon box for adsorbing organic waste gas can be used for carrying out desorption regeneration by using heat generated by catalytic combustion treatment waste gas, and the desorbed gas is sent to a catalytic combustion chamber for purification without external energy, so that the operation cost is low and the energy-saving effect is obvious.

Second, desorption fan is directly connected with the catalysis box, need not to set up the connecting pipe between its and the catalysis box and be connected, omit the connecting pipe, can improve the integration level of waste gas absorption catalytic combustion equipment, and omit the connecting pipe, only need make sealed setting in the export of casing and catalysis box junction, if there is the connecting pipe, then need all do sealed processing between casing and connecting pipe, between connecting pipe and the catalysis box, consequently, the possibility that organic waste gas takes place to reveal can be reduced in the design like this, reduce the possibility of uncleaned exhaust emission in the atmosphere as far as possible.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an exhaust gas adsorption catalytic combustion apparatus according to an embodiment of the present utility model;

FIG. 2 is a front view of an exhaust gas adsorption catalytic combustion apparatus provided by an embodiment of the utility model;

FIG. 3 is a top view of an exhaust gas adsorption catalytic combustion apparatus provided by an embodiment of the present utility model;

FIG. 4 is a top view of a catalytic converter device according to an embodiment of the present utility model;

FIG. 5 is an internal structural view of a catalytic converter according to an embodiment of the present utility model;

fig. 6 is an internal structural view of a filter provided in an embodiment of the present utility model.

Reference numerals illustrate:

10. a catalytic purification device; 11. a base; 12. a catalytic box; 13. heating the heat exchanger; 14. a catalytic bed; 15. a heating element; 20. an adsorption device; 21. a carbon box; 211. a first inlet; 212. a second inlet; 213. a first outlet; 214. a second outlet; 22. a first switching valve; 23. a second switching valve; 24. a third switching valve; 25. a fourth switching valve; 30. a desorption fan; 31. a motor base; 32. a motor; 33. a housing; 40. an adsorption fan; 50. fresh air blower; 60. an air supplementing fan; 70. an air intake duct; 80. a discharge conduit; 90. a control box; 100. a filter; 101. a filter box; 102. a first mounting plate; 103. a second mounting plate; 104. a first filtering part; 105. a second filtering part; 106. a differential pressure gauge.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are correspondingly changed.

It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

As shown in fig. 1 to 6, which are exhaust gas adsorption catalytic combustion apparatuses according to an embodiment of the present utility model, the exhaust gas adsorption catalytic combustion apparatuses in fig. 2 and 3 omit a part of the structure.

Referring to fig. 1-5, the exhaust gas adsorption catalytic combustion apparatus of the embodiment of the present utility model includes a catalytic purification device 10, an adsorption device 20, a desorption fan 30, an adsorption fan 40, a fresh air fan 50, a make-up air cooler 60, an air intake pipe 70, an exhaust pipe 80, and a control box 90, where the catalytic purification device 10 includes a base 11, a catalytic box 12, a heating heat exchanger 13, a catalytic bed 14, and a heating element 15, the catalytic box 12 is disposed on the base 11, the heating heat exchanger 13, the catalytic bed 14, and the heating element 15 are disposed in the catalytic box 12, the heating heat exchanger 13 is connected with the heating element 15, the adsorption device 20 includes at least two independently disposed carbon boxes 21, the carbon boxes 21 are provided with a first inlet 211, a second inlet 212, a first outlet 213, and a second outlet 214, the first inlet 211 is connected with the air intake pipe 70, the second inlet 212 is connected with the make-up air cooler 60, the first outlet 213 is connected with an inlet of the desorption fan 30, an outlet of the desorption fan 30 is connected with the catalytic box 12, an outlet of the catalytic box 12 is connected with the air inlet pipe 70 and the exhaust pipe 80 respectively, the second outlet 214 is connected with an inlet of the adsorption fan 40, an outlet of the adsorption fan 40 is connected with the exhaust pipe 80 respectively, an outlet of the catalytic purification device 10 is connected with the air inlet pipe 70 and the exhaust pipe 80 respectively, the desorption fan 30 comprises a motor seat 31, a motor 32, a casing 33 and an impeller (not shown), the motor seat 31 is arranged on the base 11, the motor 32 is arranged on the motor seat 31, the casing 33 is connected with the motor seat 31, an outlet of the casing 33 is arranged on the catalytic box 12, an inlet of the casing 33 is connected with the carbon box 21, the impeller is arranged in the casing 33 and is connected with the motor 32, the heating element 15, the desorption fan 30 and the adsorption fan 40, the fresh air blower 50 and the air make-up blower 60 are electrically connected with the control box 90.

It will be appreciated that the catalytic bed 14 is provided with a reaction catalyst, the organic waste gas and the reaction catalyst are reacted and catalyzed, the heat exchanger 13 is heated to the reaction temperature of the waste gas, the waste gas and the reaction catalyst are reacted and catalyzed, and the waste gas is oxidized and decomposed into carbon dioxide and water vapor, so that the waste gas reaction is more complete.

Alternatively, the reaction catalyst adopts a noble metal catalyst of ceramic honeycomb body, such as a TFJF catalyst, so that the resistance is small, and the reaction catalyst can normally operate by using a low-pressure fan, thereby not only consuming less power, but also having low noise.

It is understood that the heating element 15 is an electrical heating element 15.

It will be appreciated that for ease of control, the first inlet 211 of the carbon tank 21 is provided with a first on-off valve 22, the first outlet 213 is provided with a second on-off valve 23, the second inlet 212 is provided with a third on-off valve 24, and the second outlet 214 is provided with a fourth on-off valve 25.

In the present embodiment, three carbon boxes 21 are provided, namely, a first carbon box 21, a second carbon box 21 and a third carbon box 21, and the first carbon box 21, the second carbon box 21 and the third carbon box 21 are identical in structure.

The working principle of the exhaust gas adsorption catalytic combustion device of the embodiment of the utility model is as follows:

the organic waste gas is absorbed by active carbon micropore to absorb organic matter, the organic solvent in the organic waste gas with large air quantity and low concentration is absorbed into active carbon and concentrated, the gas after absorption and purification reaches the standard and is directly emptied, which is a physical absorption and concentration process, and the organic solvent is not treated.

The catalytic combustion desorption is to utilize hot air generated after the catalytic combustion is carried out to decompose the organic waste gas to heat the organic solvent adsorbed in the active carbon to reach the boiling point of the solvent, desorb the organic solvent from the active carbon, introduce the concentrated high-concentration waste gas into the catalytic purification device 10, and under the action of the catalyst, the organic substance is oxidized and converted into harmless water and the carbon dioxide under the catalysis initiation temperature of 180-250 ℃ to be discharged into the atmosphere.

The organic waste gas enters the fresh air blower 50 after dust removal treatment, and is sent into the carbon box 21 for adsorption purification by the fresh air blower 50, and the purified air is discharged into the air from the discharge pipe. When the concentration of the organic matter in the exhaust gas flowing out of the carbon tank 21 is about to reach the standard, the adsorption operation of the present carbon tank 21 is stopped (switching to another carbon tank 21). For the carbon box 21 with saturated adsorption, the desorption fan 30 uses hot air with the temperature of 120 ℃ to desorb the organic matters adsorbed on the activated carbon, and the concentrated high-concentration organic gas is preheated to the temperature of 300 ℃ by the heating heat exchanger 13 and then enters the catalytic bed 14 to be combusted and decomposed into carbon dioxide and water. The concentrated organic waste gas does not need an external heat source in the catalytic combustion stage because of the improvement of the heat value. Part of the burned tail gas is discharged to the atmosphere, and the other part is sent to the catalytic purification device 10 for desorption and regeneration of the activated carbon, so that the heat energy required by catalytic combustion and adsorption can be satisfied.

The exhaust gas adsorption catalytic combustion device provided by the embodiment of the utility model has the following advantages:

first, the waste gas adsorbs catalytic combustion equipment and sets up catalytic purification device 10 and adsorption equipment 20 simultaneously, adsorbs the carbon case 21 of organic matter waste gas, and the heat that can use catalytic combustion treatment waste gas to produce carries out desorption regeneration, and the gas after the desorption is sent catalytic combustion room again and is purified, does not need external energy, and the working costs is low, and energy-conserving effect is showing.

Second, desorption fan 30 is directly connected with catalytic box 12, need not to set up the connecting pipe between its and the catalytic box 12 and be connected, omit the connecting pipe, can improve the integration level of waste gas absorption catalytic combustion equipment, and omit the connecting pipe, only need do sealed setting in the export of casing 33 and catalytic box 12 junction, if there is the connecting pipe, then need all do sealed processing between casing 33 and connecting pipe, between connecting pipe and the catalytic box 12, therefore, the possibility that organic waste gas takes place to reveal can be reduced in this kind of design, reduce the possibility that unpurified waste gas discharged in the atmosphere as far as possible.

Referring to fig. 2, 3 and 6, in some embodiments, the exhaust gas adsorption catalytic combustion apparatus further includes a filter 100, and an outlet of the filter 100 is connected to an inlet of the air inlet pipe 70, so as to prevent fine paint mist, particulate impurities, etc. from entering the adsorption device 20, and ensure clean, dry, and particulate-free air source of the adsorption device 20.

Referring to fig. 2, 3 and 6, in some embodiments, the filter 100 is a dry filter 100, where the filter 100 includes a filter box 101, a first mounting plate 102, a second mounting plate 103, a first filter structure and a second filter structure, an air inlet and an air outlet are disposed on the filter box 101, the first mounting plate 102 and the second mounting plate 103 are sequentially disposed on the filter box 101 along the direction from the air inlet to the air outlet, the first filter structure is mounted on the first mounting plate 102, and the second filter structure is mounted on the second mounting plate 103, and by setting the first filter structure and the second filter structure to cooperate, the filtering effect can be improved.

In practical applications, the filter box 101 may be placed directly on the ground or may be placed on a stand.

Optionally, the first mounting plate 102 is a multi-folded plate, in this embodiment, the first mounting plate 102 is a tri-folded plate, the first filtering structure includes a plurality of first filtering portions 104, and the inclination angles of the plurality of first filtering portions 104 are adapted to the first mounting plate 102 one by one, so that the number of the first filtering portions 104 can be increased, that is, the filtering area can be increased, so that the filtering effect of the first filtering structure can be improved.

Optionally, the second mounting plate 103 is a multi-folded plate, in this embodiment, the second mounting plate 103 is a tri-folded plate, the second filtering structure includes a plurality of second filtering portions 105, and the inclination angles of the plurality of second filtering portions 105 are adapted to the inclination angles of the second mounting plate 103 one by one, so that the number of the second filtering portions 105 can be increased, that is, the filtering area can be increased, so that the filtering effect of the second filtering structure can be improved.

Alternatively, the filter box 101 is made of Q235t steel plate with the thickness of 3mm, and is welded continuously on the outside, so that the filter box is free from bubbles, slag inclusion and the like, and is attractive in whole.

Optionally, the first filtering portion 104 includes a first metal mesh frame, and a first filtering layer and a second filtering layer that are clamped in the first metal mesh frame, where the first filtering layer is a pleated primary filter cotton made of a synthetic fiber non-woven fabric and an aluminum composite, and the second filtering layer is a pleated middle-effect filter cotton made of a synthetic fiber non-woven fabric and an aluminum composite, and has the characteristics of large ventilation volume, small resistance, large dust holding capacity, and the like, and is mainly used for intercepting paint mist and solid particle impurities in waste gas, and providing favorable conditions for subsequent activated carbon adsorption.

The second filtering part 105 comprises a second metal mesh frame, and a third filtering layer and a fourth filtering layer which are clamped in the second metal mesh frame, wherein the third filtering layer is a pleated seed-effect filtering cotton made of synthetic fiber non-woven fabrics and aluminum composites, the fourth filtering layer is a pleated high-efficiency filtering cotton made of synthetic fiber non-woven fabrics and aluminum composites, and the filter has the characteristics of large ventilation quantity, small resistance, large dust holding quantity and the like, and is mainly used for intercepting paint mist and solid particle impurities in waste gas and providing favorable conditions for subsequent activated carbon adsorption.

Optionally, the first metal screen frame and the second metal screen frame are made of Q235t with the thickness of 1.5mm, so that the integral strength of the first metal screen frame and the second metal screen frame is firm, and the appearance is attractive.

Further, the filter box 101 is provided with a differential pressure gauge 106, when the differential pressure inside the filter box 101 exceeds 300Pa, the first filter structure and the second filter structure are prompted to be cleaned or replaced, so that the filter 100 has an excellent filtering effect.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (9)

1. The utility model provides an exhaust gas adsorption catalytic combustion equipment, its characterized in that includes catalytic purification device, adsorption equipment, desorption fan, adsorption fan, fresh air machine, make-up air cooler, admission line, exhaust duct and control box, catalytic purification device includes base, catalytic box, heating heat exchanger, catalytic bed and heating element, catalytic box sets up on the base, heating heat exchanger catalytic bed with heating element all sets up in the catalytic box, heating heat exchanger with heating element connects, adsorption equipment includes two at least independent carbon boxes that set up, the carbon box is provided with first entry, second entry, first export and second export, first entry with the admission line is connected, the second entry with make-up air cooler is connected, first export with the entry linkage of desorption fan, the outlet of the desorption fan is connected with the catalytic box body, the outlet of the catalytic box body is respectively connected with the air inlet pipeline and the exhaust pipeline, the second outlet is connected with the inlet of the adsorption fan, the outlet of the adsorption fan is connected with the exhaust pipeline, the outlet of the catalytic purification device is respectively connected with the air inlet pipeline and the exhaust pipeline, the desorption fan comprises a motor base, a motor, a shell and an impeller, the motor base is arranged on the base, the motor is arranged on the motor base, the shell is connected with the motor base, the outlet of the shell is arranged on the catalytic box body, the inlet of the shell is connected with the carbon box, the impeller is arranged in the shell and is connected with the motor, and the heating element, the desorption fan, the adsorption fan, the impeller and the catalytic box are respectively arranged on the base The fresh air blower and the air supplementing blower are electrically connected with the control box.

2. The exhaust gas adsorption catalytic combustion device of claim 1, further comprising a filter, an outlet of the filter being connected to an inlet of the intake conduit.

3. The exhaust gas adsorption catalytic combustion device of claim 2, wherein the filter comprises a filter box, a first mounting plate, a second mounting plate, a first filter structure and a second filter structure, wherein an air inlet and an air outlet are formed in the filter box, the first mounting plate and the second mounting plate are sequentially arranged in the filter box along the direction from the air inlet to the air outlet, the first filter structure is mounted on the first mounting plate, and the second filter structure is mounted on the second mounting plate.

4. The exhaust gas adsorbing catalytic combustion device as set forth in claim 3, wherein said first mounting plate is a multi-folded plate, said first filtering structure includes a plurality of first filtering portions, and the inclination angles of a plurality of said first filtering portions are adapted to one by one with said first mounting plate.

5. The exhaust gas adsorbing, catalyzing and burning device as set forth in claim 4, wherein the first filter part comprises a first metal mesh frame, and a first filter layer and a second filter layer which are sandwiched in the first metal mesh frame, wherein the first filter layer is a primary filter cotton, and the second filter layer is a middle-effect filter cotton.

6. The exhaust gas adsorbing catalytic combustion device as set forth in claim 3, wherein said second mounting plate is a multi-folded plate, said second filtering structure includes a plurality of second filtering portions, and the inclination angles of a plurality of said second filtering portions are adapted one by one to the inclination angle of said second mounting plate.

7. The exhaust gas adsorbing, catalyzing and burning device as set forth in claim 6, wherein the second filter part comprises a second metal mesh frame, and a third filter layer and a fourth filter layer sandwiched in the second metal mesh frame, wherein the third filter layer is medium-efficiency filter cotton, and the fourth filter layer is high-efficiency filter cotton.

8. An exhaust gas adsorption catalytic combustion device as claimed in claim 3, wherein said filter box is provided with a differential pressure gauge.

9. The exhaust gas adsorption catalytic combustion device of claim 1, wherein the first inlet is provided with a first on-off valve, the first outlet is provided with a second on-off valve, the second inlet is provided with a third on-off valve, and the second outlet is provided with a fourth on-off valve.

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