CN214389516U - Organic waste gas treatment equipment - Google Patents
Organic waste gas treatment equipment Download PDFInfo
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- CN214389516U CN214389516U CN202023152915.4U CN202023152915U CN214389516U CN 214389516 U CN214389516 U CN 214389516U CN 202023152915 U CN202023152915 U CN 202023152915U CN 214389516 U CN214389516 U CN 214389516U
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 99
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Abstract
The utility model belongs to the technical field of exhaust-gas treatment, a organic waste gas treatment equipment is disclosed, it includes: the box body comprises an upper chamber and a lower chamber; the zeolite rotating wheel is arranged in the upper chamber and comprises an adsorption area and a desorption area; the adsorption fan is arranged in the lower cavity and used for sending the organic waste gas into the adsorption area for adsorption and discharging the adsorbed purified gas to the outside of the box body; an oxidation module at least partially disposed in the lower chamber; the desorption fan is arranged in the lower cavity, one end of the desorption fan is communicated with the desorption area, and the other end of the desorption fan is communicated with the oxidation module; the orthographic projection of the adsorption fan and/or the desorption fan in the horizontal plane is at least partially overlapped with the orthographic projection of the zeolite rotating wheel in the horizontal plane. Compared with the existing remote transmission centralized processing mode, the organic waste gas processing equipment can obviously reduce the using amount of pipelines and the cost of the pipelines, simultaneously reduces the occupied area of the equipment, has compact structure, and is suitable for use places or equipment with limited sites.
Description
Technical Field
The utility model relates to a waste gas treatment technical field especially relates to an organic waste gas treatment equipment.
Background
Along with the rapid development of economy in China, the air pollution condition is becoming more serious, Volatile Organic Compounds (VOCs) are generated in large quantity, hydrocarbon Compounds in the VOCs react with nitrogen oxide Compounds under the action of ultraviolet rays to generate ozone, can cause atmospheric photochemical smog events to occur, endanger human health and plant growth, and the VOCs are combined with other pollutants in the air, most of secondary organic particles or Secondary Organic Aerosol (SOA) generated under the irradiation of sunlight are fine particles, are not easy to settle, can be retained in the atmosphere for a long time, has strong scattering power to light, can obviously reduce atmospheric visibility, and can directly enter and adhere to the upper and lower respiratory tracts and lung lobes of a human body, and are deposited in the upper and lower respiratory tract and alveolus respectively, causing various respiratory diseases such as rhinitis and bronchitis, and cancer can be induced in the environment for a long time.
For the treatment of organic waste gas, most enterprises adopt the first adsorption (active carbon or zeolite molecular sieve is used as adsorbent) to discharge clean gas, and then adopt destructive method to treat the waste gas after adsorption concentration. The organic waste gas treatment equipment adopted by individual enterprises adopts a remote transmission centralized treatment mode, the number of pipelines is large, the arrangement structure is complex, the equipment is large in size and large in occupied area, and the organic waste gas treatment equipment cannot be suitable for use places or equipment with limited sites.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an organic waste gas treatment equipment, area is little, can be applicable to in the limited use place in place or the equipment in place, and the pipeline quantity is few, and is with low costs.
To achieve the purpose, the embodiment of the application adopts the following technical scheme:
an organic exhaust gas treatment device comprising:
the box body comprises an upper chamber and a lower chamber;
the zeolite rotating wheel is arranged in the upper chamber and comprises an adsorption area and a desorption area;
the adsorption fan is arranged in the lower cavity and used for sending the organic waste gas into the adsorption area for adsorption and discharging the adsorbed purified gas to the outside of the box body;
an oxidation module at least partially disposed in the lower chamber;
the desorption fan is arranged in the lower cavity, one end of the desorption fan is communicated with the desorption area, and the other end of the desorption fan is communicated with the oxidation module;
the orthographic projection of the adsorption fan and/or the desorption fan in a horizontal plane is at least partially overlapped with the orthographic projection of the zeolite rotating wheel in the horizontal plane.
Through setting up the box, and with the inside last cavity and the lower cavity that divide into mutual independence of box, the zeolite runner, adsorption fan, desorption fan and oxidation module rational arrangement are in last cavity and lower cavity, compare the teletransmission centralized processing mode among the prior art can show and reduce the pipeline quantity, reduce the pipeline arrangement degree of difficulty, reduce the pipeline cost, the area of equipment has been reduced greatly simultaneously, moreover, the steam generator is compact in structure, the integrated level is high, realize the sled dress of equipment and use on the spot, on-the-spot simple to operate is swift, be applicable to in the limited use place in place or the equipment in place.
As a preferable technical solution of the organic waste gas treatment device, the oxidation module is located in the lower chamber, and an orthographic projection of the oxidation module in the horizontal plane is partially overlapped with an orthographic projection of the zeolite wheel in the horizontal plane.
The arrangement mode can further reduce the occupied area of the equipment, improve the structural compactness of the equipment and is beneficial to realizing the miniaturization of the equipment.
As a preferable embodiment of the organic waste gas treatment apparatus, the apparatus further includes:
the pre-filtering module is arranged in the upper chamber, in the gas flow direction, the pre-filtering module is located at the upstream of the zeolite rotating wheel, the zeolite rotating wheel is located at the upstream of the adsorption fan, and the orthographic projection of the pre-filtering module in the horizontal plane is partially overlapped with the orthographic projection of the oxidation module in the horizontal plane.
Under the structure, the adsorption fan can suck organic waste gas into the box body, the organic waste gas sequentially flows through the pre-filtering module and the zeolite rotating wheel to be sequentially filtered and adsorbed under the action of negative pressure provided by the adsorption fan, purified gas is discharged to the outside of the box body, and the pre-filtering module is arranged to filter particles in the organic waste gas and prevent the particles from entering the zeolite rotating wheel to influence the adsorption efficiency of the zeolite rotating wheel; meanwhile, the arrangement mode can further reduce the occupied area of the equipment, improve the structural compactness of the equipment and is beneficial to realizing the miniaturization of the equipment.
As a preferable technical solution of the above organic waste gas treatment device, the oxidation modules are distributed in the upper chamber and the lower chamber, and a size of the oxidation modules in a vertical direction is larger than a size of the oxidation modules in a horizontal direction.
The arrangement mode can further reduce the occupied area of the equipment, improve the structural compactness of the equipment and is beneficial to realizing the miniaturization of the equipment.
As a preferable technical solution of the organic waste gas treatment device, an orthographic projection of the zeolite rotating wheel in the horizontal plane covers an orthographic projection of the adsorption fan in the horizontal plane.
The arrangement mode can further reduce the occupied area of the equipment, improve the structural compactness of the equipment and is beneficial to realizing the miniaturization of the equipment.
As a preferable embodiment of the organic waste gas treatment apparatus, the apparatus further includes:
the pre-filtering module is arranged in the lower chamber, in the gas flow direction, the pre-filtering module is located at the upstream of the adsorption fan, the adsorption fan is located at the upstream of the zeolite rotating wheel, and the orthographic projection of the pre-filtering module in the horizontal plane is partially overlapped with the orthographic projection of the zeolite rotating wheel in the horizontal plane.
Under the structure, the adsorption fan can pump organic waste gas into the box body, under the positive pressure effect provided by the adsorption fan, the organic waste gas firstly flows through the pre-filtering module to be filtered after entering the box body, and then is blown into the zeolite rotating wheel through the adsorption fan to be adsorbed, and by arranging the pre-filtering module, particles in the organic waste gas can be filtered, so that the particles are prevented from entering the adsorption fan and the zeolite rotating wheel to influence the normal work of the adsorption fan and the adsorption efficiency of the zeolite rotating wheel; meanwhile, the arrangement mode can further reduce the occupied area of the equipment, improve the structural compactness of the equipment and is beneficial to realizing the miniaturization of the equipment.
As a preferred technical solution of the above organic waste gas treatment equipment, the pre-filtering module includes a primary filter, a secondary filter and a high efficiency filter, which are sequentially arranged along the flow direction of the organic waste gas; the primary filter is connected with the intermediate filter in an abutting mode.
The primary filter, the intermediate filter and the high-efficiency filter are arranged, so that the filtering effect on the particles is improved; through setting up primary filter and the butt of well effect filter, improved the compact structure nature of prefiltration module, further reduce area, improve equipment's compact structure nature.
As a preferred technical solution of the above organic waste gas treatment device, the oxidation module includes a heat exchanger, a first heater and a reactor, a waste gas inlet of the heat exchanger is connected to the desorption fan, a waste gas outlet of the heat exchanger is connected to an inlet of the first heater, an outlet of the first heater is connected to an inlet of the reactor, and an outlet of the reactor is connected to a purified gas inlet of the heat exchanger.
The oxidation module of this structure can effectively improve heat utilization rate, reduces the energy consumption.
As a preferred technical scheme of the organic waste gas treatment equipment, the desorption area is provided with a desorption inner cavity and a desorption outer cavity, and the desorption outer cavity is communicated with the desorption fan; and a purified gas outlet of the heat exchanger is communicated with the desorption inner cavity.
Through the purified gas outlet and the desorption inner cavity of the heat exchanger, a closed-loop desorption mode is formed, so that high-temperature purified gas generated by catalytic oxidation can be returned to a desorption area to carry out back-flushing desorption on the zeolite molecular sieve of the zeolite rotating wheel, desorption regeneration of the zeolite molecular sieve is realized, cyclic utilization of the zeolite molecular sieve is realized, the adsorption efficiency and the adsorption effect of the zeolite rotating wheel are improved, the energy consumption is reduced, and the operation cost of equipment is saved.
As a preferable technical solution of the organic waste gas treatment apparatus,
the desorption area is provided with a desorption inner cavity and a desorption outer cavity, and the desorption outer cavity is communicated with the desorption fan;
the organic waste gas treatment equipment further comprises a second heater, the second heater is communicated with the desorption inner cavity, and the second heater is used for heating desorption gas flow;
and a purified gas outlet of the heat exchanger is communicated with the adsorption fan.
The desorption air flow flowing from the desorption inner cavity to the desorption outer cavity is heated by adding the second heater, an open-loop desorption mode is formed, the desorption air flow reaches the desorption temperature, the dryness of the desorption air flow can be guaranteed, and the desorption effect is guaranteed.
Drawings
Fig. 1 is a front view of an internal structure of an organic waste gas treatment apparatus according to an embodiment of the present invention;
fig. 2 is a top view of an internal structure of an organic waste gas treatment apparatus according to an embodiment of the present invention;
fig. 3 is a right side view of an organic waste gas treatment apparatus according to an embodiment of the present invention;
fig. 4 is a left side view of an organic waste gas treatment apparatus according to a first embodiment of the present invention;
fig. 5 is an adsorption schematic diagram of an organic waste gas treatment device according to an embodiment of the present invention;
fig. 6 is a schematic diagram of desorption of organic waste gas treatment equipment according to a first embodiment of the present invention;
fig. 7 is a schematic structural diagram of an oxidation module according to an embodiment of the present invention;
fig. 8 is a front view of an internal structure of an organic waste gas treatment apparatus according to a second embodiment of the present invention;
fig. 9 is a top view of an internal structure of an organic waste gas treatment apparatus according to a second embodiment of the present invention.
In the figure:
1. a zeolite wheel; 11. desorbing the inner cavity; 12. desorbing the outer cavity; 2. an adsorption fan; 3. an oxidation module; 4. a desorption fan; 5. a pre-filtering module; 6. a drive module; 7. an electric control cabinet; 8. an organic waste gas inlet; 9. And a purge gas outlet. 10. Desorbing the pipeline;
100. a box body; 101. an upper chamber; 1011. a filtration chamber; 1012. an adsorption chamber; 102. a lower chamber.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
As shown in fig. 1 to 7, the present embodiment provides an organic waste gas treatment apparatus, which includes a tank 100, wherein an upper chamber 101 and a lower chamber 102, which are independent of each other, are separately arranged in the tank 100, and the tank 100 of this structure occupies a small area in a certain space.
The organic waste gas treatment equipment in this embodiment adopts the negative pressure adsorption principle to purify the organic waste gas and adsorb. Specifically, as shown in fig. 1 to 4, a zeolite wheel 1 is disposed in the upper chamber 101, the zeolite wheel 1 is used for adsorbing the organic waste gas, the zeolite wheel 1 includes an adsorption zone and a desorption zone, the zeolite wheel 1 completes adsorption of VOCs in the organic waste gas in the adsorption zone, and completes desorption of VOCs on the zeolite molecular sieve of the zeolite wheel 1 in the desorption zone. The adsorption fan 2 is disposed in the lower chamber 102, and the adsorption fan 2 is configured to suck the organic waste gas outside the box 100 into the adsorption region of the zeolite wheel 1 for adsorption, and discharge the purified gas adsorbed by the zeolite wheel 1 to the outside of the box 100. Optionally, the box 100 is a sealed box 100, and one side of the box 100 is provided with an organic waste gas inlet 8 communicated with the upper chamber 101, and the other side is provided with a purified gas outlet 9 communicated with the adsorption fan 2. The adsorption fan 2 is used as a power source to suck external organic waste gas into the equipment from the organic waste gas inlet 8 through a pipeline, when the organic waste gas passes through the zeolite rotating wheel 1, the zeolite rotating wheel 1 adsorbs VOCs in the organic waste gas on the surface of the zeolite molecular sieve, and the purified gas is discharged from the bottom of the zeolite rotating wheel 1 to the purified gas outlet 9.
The organic waste gas treatment equipment further comprises an oxidation module 3 and a desorption fan 4, wherein the oxidation module 3 is arranged in the lower chamber 102 and is used for catalytically oxidizing organic matters, namely the VOCs, and the orthographic projection of the oxidation module 3 in the horizontal plane is partially overlapped with the orthographic projection of the zeolite rotating wheel 1 in the horizontal plane. The desorption fan 4 is disposed in the lower chamber 102, and has two ports, one end of which is communicated with the desorption region, and the other end of which is communicated with the oxidation module 3, for sending the desorption air flow into the oxidation module 3 for catalytic oxidation. The orthographic projection of the adsorption fan 2 and/or the desorption fan 4 in the horizontal plane is at least partially overlapped with the orthographic projection of the zeolite rotating wheel 1 in the horizontal plane. The organic waste gas treatment equipment realizes the process of combining adsorption concentration and catalytic oxidation to treat the organic waste gas, and improves the treatment effect of the organic waste gas.
Through setting up box 100, and divide box 100 inside into mutually independent upper chamber 101 and lower chamber 102, zeolite runner 1, adsorption fan 2, desorption fan 4 and oxidation module 3 rational arrangement are in upper chamber 101 and lower chamber 102, compare the teletransmission centralized processing mode among the prior art and can show the reduction pipeline quantity, reduce the pipeline and arrange the degree of difficulty, reduce the pipeline cost, the area of equipment has been reduced greatly simultaneously, compact structure, the integrated level is high, realize the sled dress ization of equipment and use on the spot, on-the-spot simple to operate is swift, be applicable to in the limited use place in place or the equipment in place.
Be used for adsorbing concentrated zeolite runner 1 among the prior art and be disc structure more, disc structure zeolite runner 1 needs the monolithic erection, and the transportation degree of difficulty is big, changes the difficulty, and later stage part damages and need the monolithic replacement, and the cost is very high. The zeolite wheel 1 in this embodiment is of a cylindrical structure with its central axis parallel to the vertical. Specifically, zeolite runner 1 includes the inner tube wall and the outer tube wall of coaxial setting, and the intracavity equipartition between inner tube wall and the outer tube wall has the zeolite module of certain quantity, and the zeolite molecular sieve is equipped with to the inside splendid attire of zeolite module for adsorb VOCs. After organic waste gas enters the box body 100 from the organic waste gas inlet 8, the organic waste gas enters the inner side from the periphery of the zeolite rotating wheel 1, VOCs in the organic waste gas are adsorbed by the zeolite module in the process, the gas penetrating into the inner cavity of the inner cylinder wall is purified gas, the purified gas is directly discharged from the bottom of the zeolite rotating wheel 1 through the purified gas outlet 9, and the adsorption process is completed. Compared with a disc type zeolite rotating wheel commonly used in the prior art, the zeolite module of the drum type rotating wheel zeolite is easy to replace, and is beneficial to later maintenance; and the specific heat capacity is small, and a large amount of heat can not be absorbed during desorption, so that the zeolite rotating wheel 1 does not need to be provided with a cooling partition, the conveying of cooling air, the configuration of a pipeline valve and the point position of corresponding electrical operation are saved, and the energy consumption and the operation cost are obviously reduced.
Considering that the organic waste gas may contain particles, in order to prevent the particles from entering the zeolite rotating wheel 1 to block the honeycomb-shaped holes of the zeolite molecular sieve, thereby affecting the normal operation and adsorption efficiency of the zeolite rotating wheel 1, the organic waste gas treatment device further comprises a pre-filtering module 5, the pre-filtering module 5 is arranged in the upper chamber 101, and along the flow direction of the organic waste gas, the pre-filtering module 5 is located at the upstream of the zeolite rotating wheel 1, and the zeolite rotating wheel 1 is located at the upstream of the adsorption fan 2. The structure can ensure the negative pressure adsorption effect of the equipment on the organic waste gas, and the negative pressure adsorption can effectively avoid the phenomenon that the organic gas leaks to cause the on-site escaping of unpleasant pungent smell due to the untight sealing of the equipment. Under this structure, adsorption fan 2 can inhale box 100 with organic waste gas, and under the negative pressure effect that adsorption fan 2 provided, organic waste gas flows through in proper order and filters and adsorbs module 5 and zeolite runner 1 in advance in proper order, and the purge gas is discharged to the box 100 outside. Further, the orthographic projection of the pre-filtering module 5 in the horizontal plane partially overlaps the orthographic projection of the oxidizing module 3 in the horizontal plane. By arranging the pre-filtering module, particulate matters in the organic waste gas can be filtered, and the particulate matters are prevented from entering the zeolite rotating wheel 1 to influence the adsorption efficiency of the zeolite rotating wheel 1; meanwhile, the arrangement mode can further reduce the occupied area of the equipment, improve the structural compactness of the equipment and is beneficial to realizing the miniaturization of the equipment.
Optionally, along the flow direction of organic waste gas, the pre-filtering module 5 includes a primary filter, a secondary filter and a high efficiency filter which are arranged in sequence, and the filtering effect on the particulate matter is improved by arranging the primary filter, the secondary filter and the high efficiency filter. Preferably, the primary filter is abutted to the intermediate filter, so that the structural compactness of the pre-filtering module 5 is improved, the occupied area is further reduced, and the structural compactness of the equipment is improved.
Further alternatively, as shown in fig. 5, the upper chamber 101 is divided into a filtering chamber 1011 and an adsorbing chamber 1012, the filtering chamber 1011 is located upstream of the adsorbing chamber 1012 in the flow direction of the organic waste gas, the pre-filtering module 5 is disposed in the filtering chamber 1011, and the zeolite wheel 1 is disposed in the adsorbing chamber 1012. Further, the filtering chamber 1011 is divided into three sub-chambers, and is divided into a first sub-chamber, a second sub-chamber and a third sub-chamber along the flowing direction of the organic waste gas, the primary filter and the intermediate filter are arranged in the second sub-chamber, the high efficiency filter is arranged in the third sub-chamber, and the first sub-chamber is vacant. Under adsorption fan 2's absorption pulling action, this structure setting can reduce organic waste gas to the impact of prefiltration module 5, and can provide the effective equipartition organic waste gas in certain space for organic waste gas carries out evenly distributed before flowing into prefiltration module 5, improves subsequent filter effect and adsorption effect.
Preferably, the primary filter, the intermediate filter and the high efficiency filter are all perpendicular to the flowing direction of the organic waste gas, and the width of the primary filter, the intermediate filter and the high efficiency filter is equal to the width of the corresponding sub-chamber, that is, the width of the box 100, and this structure can prevent the organic waste gas from flowing to the zeolite rotating wheel 1 without being filtered by the pre-filtering module 5.
In the present embodiment, as shown in fig. 7, the oxidation module 3 includes a heat exchanger 31, a first heater 32 and a reactor 33, wherein an exhaust gas inlet 311 of the heat exchanger 31 is connected to the desorption fan 4, an exhaust gas outlet of the heat exchanger 31 is connected to an inlet of the first heater 32, an outlet of the first heater 32 is connected to an inlet of the reactor 33, and an outlet of the reactor 33 is connected to a purified gas inlet of the heat exchanger 31. Optionally, the desorption area is provided with a desorption inner cavity 11 and a desorption outer cavity 12, the desorption inner cavity 11 and the desorption outer cavity 12 are arranged just opposite to each other and have the same area, the desorption outer cavity 12 is communicated with the desorption fan 4, and a purified gas outlet of the heat exchanger 31 is communicated with the desorption inner cavity 11. The oxidation module of this structure can effectively improve heat utilization rate, reduces the energy consumption.
Preferably, as shown in fig. 6, the organic waste gas treatment equipment further includes a desorption pipeline 10, one end of the desorption pipeline 10 is communicated with the oxidation module 3, and the other end is communicated with the desorption inner cavity 11, so that the high-temperature purified gas obtained after catalytic oxidation in the oxidation all-in-one machine 3 is returned to the desorption inner cavity 11 through the desorption pipeline 10, and the high-temperature purified gas desorbs the zeolite molecular sieve of the zeolite rotating wheel 1.
In the rotation process of the zeolite rotating wheel 1, part of zeolite modules containing zeolite molecular sieves always rotate to a position between the desorption inner cavity 11 and the desorption outer cavity 12, and a position between the desorption inner cavity 11 and the desorption outer cavity 12 is a high-temperature desorption area. When the zeolite molecular sieve adsorbing a large amount of VOCs rotates to the high-temperature desorption area, high-temperature purified gas after catalytic oxidation in the oxidation module 3 is returned to the desorption inner cavity 11 through the negative pressure of the desorption pipeline 10 under the traction action of the desorption fan 4, and is blown to the desorption outer cavity 12 from the desorption inner cavity 11 so as to desorb the VOCs on the zeolite molecular sieve to form desorption gas flow, and the desorption fan 4 sends the desorption gas flow into the oxidation module 3 for catalytic oxidation treatment. Through the purified gas outlet and the desorption inner cavity of the heat exchanger, a closed-loop desorption mode is formed, so that high-temperature purified gas generated by catalytic oxidation can be returned to a desorption area to carry out back-flushing desorption on the zeolite molecular sieve of the zeolite rotating wheel, desorption regeneration of the zeolite molecular sieve is realized, cyclic utilization of the zeolite molecular sieve is realized, the adsorption efficiency and the adsorption effect of the zeolite rotating wheel are improved, the energy consumption is reduced, and the operation cost of equipment is saved.
Further, the first heater 32 is an electric heater, the electric heater heats the desorption gas flow carrying the VOCs to a preset temperature, for example, 250 ℃ to 350 ℃, a noble metal catalyst bed is arranged in the reactor 33, the heated VOCs are completely oxidized and decomposed under the catalytic action of the noble metal catalyst, the purified gas is subjected to heat exchange by the heat exchanger 31 to form a hot gas at the preset temperature, for example, about 180 ℃, and then returns to the desorption inner cavity 11 to continuously perform the desorption operation of the VOCs. So, realized zeolite molecular sieve's cyclic utilization, and effective resources are saved reduces the energy consumption, and zeolite runner 1 rotates in adsorption zone and desorption district's circulation, alright realize adsorbing and desorption constantly to VOCs to the realization is to organic waste gas's effective processing.
In another alternative embodiment, the organic waste gas treatment device further comprises a second heater (not shown in the figure), the second heater is communicated with the desorption inner cavity 11, and the second heater is used for heating the desorption gas flow; the purge gas outlet 312 of the heat exchanger 31 communicates with the adsorption fan 2. Under this structure, the area that desorption inner chamber 11 just faces desorption outer chamber 12 is greater than the area of desorption outer chamber 12 for a small part organic waste gas can get into desorption inner chamber 11 and become the desorption air current, and this part organic waste gas reaches desorption temperature after the second heater heating, so that carry out the desorption to the zeolite molecular sieve. The desorption gas stream is derived from the organic waste gas having a large air volume and a low concentration.
The desorption air flow flowing from the desorption inner cavity 11 to the desorption outer cavity 12 is heated by adding the second heater, an open-loop desorption mode is formed, the desorption air flow reaches the desorption temperature, the dryness of the desorption air flow can be ensured, and the desorption effect is ensured.
In order to realize the continuous rotation of the zeolite rotating wheel 1, the organic waste gas treatment device in the embodiment further includes a driving module 6, and the driving module 6 is connected to the zeolite rotating wheel 1 in a driving manner and is used for driving the zeolite rotating wheel 1 to rotate. Specifically, the driving module 6 comprises a driving motor and a transmission assembly, an output shaft of the driving motor is connected to the transmission assembly, and the transmission assembly is connected to the main body of the zeolite rotating wheel 1 in a transmission manner, so that the zeolite rotating wheel 1 can rotate continuously. Alternatively, the transmission assembly may be a chain wheel and chain structure, or a gear transmission structure, as long as it can provide a driving force for the rotation of the zeolite wheel 1, and the embodiment does not specifically limit the specific form of the transmission assembly.
As a preferred technical scheme, an electric control cabinet 7 is further arranged in the box body 100, and part of the electric control cabinet 7 is located in the upper chamber and part of the electric control cabinet is located in the lower chamber 102. Preferably, the electric control cabinet 7 is a PLC electric control cabinet. All valves in drive module 6, adsorption fan 2, desorption fan 4, oxidation module 3 and the equipment link to each other with PLC control system, and PLC control system realizes the real time monitoring to organic waste gas treatment process, uses manpower sparingly, and is convenient for assess the behavior of equipment.
More preferably, the case 100 has a hexahedral structure. The box body 100 with the hexahedral structure enables the skid-mounted degree of equipment to be higher, the equipment is convenient to transport and use on site, the upper chamber 101 and the lower chamber 102 are regularly distributed in the box body 100 with the hexahedral structure, and the structure compactness is further improved.
Example two
This embodiment provides an organic waste gas treatment apparatus, which is different from the organic waste gas treatment apparatus in the first embodiment in that the adsorption manner is positive pressure adsorption.
Specifically, the oxidation modules 3 are distributed in the upper chamber 101 and the lower chamber 102, and the size of the oxidation modules 3 in the vertical direction is larger than that in the horizontal direction. Further, as shown in fig. 8 and 9, an orthographic projection of the zeolite wheel 1 in the horizontal plane covers an orthographic projection of the adsorption fan 2 in the horizontal plane. The arrangement mode can further reduce the occupied area of the equipment, improve the structural compactness of the equipment and is beneficial to realizing the miniaturization of the equipment.
In order to realize positive pressure adsorption, the pre-filtering module 5 is positioned at the upstream of the adsorption fan 2 in the gas flow direction, the adsorption fan 2 is positioned at the upstream of the zeolite rotating wheel 1, and the orthographic projection of the pre-filtering module 5 in the horizontal plane is partially overlapped with the orthographic projection of the zeolite rotating wheel 1 in the horizontal plane. Under the structure, the adsorption fan 2 can pump the organic waste gas into the box body, under the positive pressure effect provided by the adsorption fan 2, the organic waste gas firstly flows through the pre-filtering module 5 to be filtered after entering the box body 100, and then is blown into the zeolite rotating wheel 1 through the adsorption fan 2 to be adsorbed, and by arranging the pre-filtering module 5, the particulate matters in the organic waste gas can be filtered, so that the particulate matters are prevented from entering the adsorption fan 2 and the zeolite rotating wheel 1 to influence the normal work of the adsorption fan 2 and the adsorption efficiency of the zeolite rotating wheel 1; meanwhile, the arrangement mode can further reduce the occupied area of the equipment, improve the structural compactness of the equipment and is beneficial to realizing the miniaturization of the equipment.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An organic exhaust gas treatment apparatus, comprising:
a case (100) including an upper chamber (101) and a lower chamber (102);
the zeolite rotating wheel (1) is arranged in the upper chamber (101), and the zeolite rotating wheel (1) comprises an adsorption area and a desorption area;
the adsorption fan (2) is arranged in the lower chamber (102), and the adsorption fan (2) is used for sending the organic waste gas into the adsorption area for adsorption and discharging the adsorbed purified gas to the outside of the box body (100);
an oxidation module (3) disposed at least partially in the lower chamber (102);
the desorption fan (4) is arranged in the lower chamber (102), one end of the desorption fan (4) is communicated with the desorption area, and the other end of the desorption fan is communicated with the oxidation module (3);
the orthographic projection of the adsorption fan (2) and/or the desorption fan (4) in a horizontal plane is at least partially overlapped with the orthographic projection of the zeolite rotating wheel (1) in the horizontal plane.
2. The organic waste gas treatment apparatus according to claim 1,
the oxidation module (3) is positioned in the lower chamber (102), and the orthographic projection of the oxidation module (3) in the horizontal plane is partially overlapped with the orthographic projection of the zeolite rotating wheel (1) in the horizontal plane.
3. The organic waste gas treatment apparatus according to claim 2, further comprising:
a pre-filtering module (5) arranged in the upper chamber (101), wherein the pre-filtering module (5) is positioned at the upstream of the zeolite rotating wheel (1) in the gas flow direction, the zeolite rotating wheel (1) is positioned at the upstream of the adsorption fan (2), and the orthographic projection of the pre-filtering module (5) in the horizontal plane is partially overlapped with the orthographic projection of the oxidizing module (3) in the horizontal plane.
4. The organic waste gas treatment apparatus according to claim 1,
the oxidation modules (3) are distributed in the upper chamber (101) and the lower chamber (102), and the size of the oxidation modules (3) in the vertical direction is larger than that of the oxidation modules in the horizontal direction.
5. The organic waste gas treatment apparatus according to claim 4,
the orthographic projection of the zeolite rotating wheel (1) in the horizontal plane covers the orthographic projection of the adsorption fan (2) in the horizontal plane.
6. The organic waste gas treatment apparatus according to claim 4, further comprising:
a pre-filter module (5), wherein the pre-filter module (5) is arranged in the lower chamber (102), in the gas flow direction, the pre-filter module (5) is located upstream of the adsorption fan (2), the adsorption fan (2) is located upstream of the zeolite rotating wheel (1), and the orthographic projection of the pre-filter module (5) in the horizontal plane is partially overlapped with the orthographic projection of the zeolite rotating wheel (1) in the horizontal plane.
7. The organic waste gas treatment apparatus according to claim 3 or 6,
the pre-filtering module (5) comprises a primary filter, a medium-efficiency filter and a high-efficiency filter which are sequentially arranged along the flowing direction of the organic waste gas; the primary filter is connected with the intermediate filter in an abutting mode.
8. The organic waste gas treatment apparatus according to claim 1,
the oxidation module (3) comprises a heat exchanger (31), a first heater (32) and a reactor (33), wherein a waste gas inlet (311) of the heat exchanger (31) is connected with the desorption fan (4), a waste gas outlet of the heat exchanger (31) is connected with an inlet of the first heater (32), an outlet of the first heater (32) is connected with an inlet of the reactor (33), and an outlet of the reactor (33) is connected with a purified gas inlet of the heat exchanger (31).
9. The organic waste gas treatment apparatus according to claim 8,
the desorption area is provided with a desorption inner cavity (11) and a desorption outer cavity (12), and the desorption outer cavity (12) is communicated with the desorption fan (4); and a purified gas outlet (312) of the heat exchanger (31) is communicated with the desorption inner cavity (11).
10. The organic waste gas treatment apparatus according to claim 8,
the desorption area is provided with a desorption inner cavity (11) and a desorption outer cavity (12), and the desorption outer cavity (12) is communicated with the desorption fan (4);
the organic waste gas treatment equipment further comprises a second heater, the second heater is communicated with the desorption inner cavity (11), and the second heater is used for heating desorption gas flow;
a purified gas outlet (312) of the heat exchanger (31) is communicated with the adsorption fan (2).
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| CN202023152915.4U CN214389516U (en) | 2020-12-23 | 2020-12-23 | Organic waste gas treatment equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117085462A (en) * | 2023-09-04 | 2023-11-21 | 青岛德尔通用环保科技有限公司 | Zeolite roller desorption mechanism and waste gas purifying integrated machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117085462A (en) * | 2023-09-04 | 2023-11-21 | 青岛德尔通用环保科技有限公司 | Zeolite roller desorption mechanism and waste gas purifying integrated machine |
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