Concentrator rotary system and exhaust gas treatment system

Abstract

This invention belongs to the field of waste gas treatment and discloses a concentrator rotary system and a waste gas treatment system. When using this invention to treat large volumes of low-concentration waste gas, by reasonably adjusting the opening degrees of the first, second, and third flow valves, the system can operate stably. During this stable operation, the desorption circulation pipeline and the extension pipeline divert most of the air volume from the system. Thus, under the objective law of mass conservation, the air volume discharged from the rear end of the desorption pipeline is equal to a small portion of the air volume in the regulating pipeline. At this point, the difference between the air volume entering the system from the front end of the adsorption pipeline and the air volume discharged from the rear end of the desorption pipeline is significant, resulting in a greatly improved concentration ratio compared to existing technologies. Furthermore, if the waste gas source fluctuates, the concentration ratio can be adaptively adjusted by regulating the opening degree of the third flow valve, offering flexibility and convenience. Therefore, this invention is particularly suitable for the recovery needs of high-value waste gases such as NMP and IPA.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically to a concentrator rotary system and a waste gas treatment system. Background Technology

[0002] Concentrating rotary systems are widely used to concentrate large volumes of low-concentration VOCs into smaller volumes of high-concentration VOCs, effectively reducing the cost of end-of-pipe VOC treatment. VOCs such as NMP exhaust from the lithium battery industry and IPA exhaust from the semiconductor industry have simple compositions and high recycling value; their end-of-pipe treatment typically employs condensation recovery processes. For high-value exhaust gases like NMP and IPA, the combination of a "concentrating rotary system + condensation treatment system" can significantly reduce the volume of air to be treated, effectively lowering the cost of condensation recovery processes.

[0003] Currently, condensation treatment systems can be used for concentrations up to 25 g / m³. 3 The above-mentioned process waste gas recovery, that is, theoretically, the concentration ratio of the concentrator wheel system can reach about 100, and it can also be used for end-of-pipe treatment by the condensation treatment system. However, in reality, the maximum concentration ratio of conventional concentrator wheel systems can generally only reach about 30. Moreover, when treating waste gases such as NMP and IPA, the upstream waste gas sources are wide and fluctuate, and the concentration ratio of conventional concentrator wheel systems is difficult to adjust flexibly.

[0004] In other words, conventional rotary concentrator systems have a relatively small maximum concentration ratio and are difficult to adjust flexibly, and are currently unable to meet the recovery needs of high-value waste gases such as NMP and IPA. Summary of the Invention

[0005] In view of at least one of the above-mentioned defects or deficiencies in the prior art, the present invention provides a concentration rotor system and a waste gas treatment system, which can greatly improve the concentration ratio and the concentration ratio is easy to adjust, thereby achieving the purpose of matching the recovery needs of high-value waste gases such as NMP and IPA.

[0006] To achieve the above objectives, a first aspect of the present invention provides a concentration impeller system, comprising:

[0007] The concentrator includes an adsorption zone, a desorption zone, and a cooling zone arranged sequentially along the circumference.

[0008] The piping assembly includes an adsorption piping, a cooling piping, a desorption piping, a desorption circulation piping, an air regulating piping, and an extension piping. The adsorption piping is connected in series with an adsorption fan and the adsorption zone. The cooling piping is connected in series with a first flow valve and the cooling zone. The desorption piping is connected in series with a desorption fan, a heating device, a second flow valve, and the desorption zone. The air regulating piping is connected in series with a third flow valve.

[0009] The front end of the cooling pipe is connected to the pipe section between the two ends of the adsorption pipe, the rear end of the cooling pipe is connected to the front end of the extension pipe, the first flow valve is arranged in front of the cooling zone, the front end of the regulating air pipe is connected to the rear end of the cooling pipe, the rear end of the regulating air pipe is connected to the front end of the desorption pipe, the rear end of the desorption circulation pipe is connected to the front end of the desorption pipe, the pipe section between the rear end of the desorption pipe and the desorption zone is connected to the front end of the desorption circulation pipe, the heating device is arranged in front of the desorption zone, and the second flow valve is arranged between the front end of the desorption circulation pipe and the rear end of the desorption pipe.

[0010] Optionally, the extended pipeline is formed as an adsorption return air pipeline, the rear end of the adsorption return air pipeline is connected to the section of the adsorption pipeline located in front of the adsorption zone, the front end of the cooling pipeline is located behind the rear end of the adsorption return air pipeline, and the concentrator wheel system further includes a heat exchange assembly, which is configured to cool the gas in the adsorption return air pipeline.

[0011] Optionally, the heat exchange assembly is configured to heat the gas in the desorption circulation line.

[0012] Optionally, the rear end of the desorption pipeline is configured to connect to the inlet end of the condensation treatment system, and the heat exchange assembly includes a first heat exchanger and a second heat exchanger. The first heat exchanger includes a first hot fluid channel and a first cold fluid channel capable of heat exchange, and the second heat exchanger includes a second hot fluid channel and a second cold fluid channel capable of heat exchange.

[0013] The desorption circulation pipeline is connected in series with the first cold fluid channel, and the adsorption return air pipeline is connected in series with the first hot fluid channel and the second hot fluid channel along the gas flow direction. The second cold fluid channel is configured to allow the condensate generated by the condensation treatment system to pass through.

[0014] Optionally, the cooling pipe, the desorption pipe, the desorption circulation pipe, the air regulating pipe, and the adsorption return air pipe are all provided with an insulation layer.

[0015] Optionally, the concentration rotor system includes a first three-way valve, a second three-way valve, a third three-way valve, a fourth three-way valve, and a fifth three-way valve. The first three-way valve is arranged between the rear end of the adsorption return air duct and the adsorption duct. The second three-way valve is arranged between the front end of the cooling duct and the adsorption duct. The third three-way valve is arranged between the front end of the desorption circulation duct and the desorption duct. The fourth three-way valve is arranged between the rear end of the desorption circulation duct, the front end of the desorption duct, and the rear end of the regulating air duct. The fifth three-way valve is arranged between the rear end of the cooling duct, the front end of the adsorption return air duct, and the front end of the regulating air duct.

[0016] Optionally, the front end of the cooling pipe is connected to the section of the adsorption pipe located behind the adsorption zone.

[0017] Optionally, the section of the adsorption pipe between its own rear end and the front end of the cooling pipe is connected to the rear end of the extension pipe.

[0018] A second aspect of the present invention provides an exhaust gas treatment system, including the above-described concentrator rotary system.

[0019] Optionally, the exhaust gas treatment system further includes a condensation treatment system, and the rear end of the desorption pipeline is connected to the inlet end of the condensation treatment system.

[0020] When using the concentrator rotary system of this invention to treat large volumes of low-concentration waste gas, by reasonably adjusting the opening degrees of the first, second, and third flow valves, the system can operate stably. During this stable operation, the desorption circulation pipeline and extension pipeline divert most of the air volume from the system. Thus, under the objective law of mass conservation, the air volume discharged from the rear end of the desorption pipeline is equal to a small portion of the air volume in the regulating pipeline. At this point, the difference between the air volume entering the system from the front end of the adsorption pipeline and the air volume discharged from the rear end of the desorption pipeline is significant, resulting in a greatly improved concentration ratio compared to existing technologies. Furthermore, if the waste gas source fluctuates, the concentration ratio can be adaptively adjusted by regulating the opening degree of the third flow valve, offering flexibility and convenience. Therefore, this invention is particularly suitable for the recovery needs of high-value waste gases such as NMP and IPA.

[0021] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1This is a schematic diagram of a concentration wheel system according to a specific embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 2 Concentrators 5 Heating Device

[0026] 11 Waste gas to be treated 12 Purified gas

[0027] 13 Condensation Treatment Inlet 21 Adsorption Zone

[0028] 22 Desorption Zone 23 Cooling Zone

[0029] 31 Adsorption fan 32 Desorption fan

[0030] 41 First flow valve 42 Second flow valve

[0031] 43 Third flow valve 61 First heat exchanger

[0032] 62 Second heat exchanger 71 First three-way valve

[0033] 72 Second three-way valve 73 Third three-way valve

[0034] 74 Fourth three-way valve 75 Fifth three-way valve

[0035] 81 Adsorption pipe 82 Cooling pipe

[0036] 83 Desorption pipeline 84 Desorption circulation pipeline

[0037] 85 Air duct section 86 Primary heat exchanger section

[0038] 87 Secondary heat exchanger section 88 Return air section Detailed Implementation

[0039] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0041] In the embodiments of the present invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positional relationships of the components in relation to the directions shown in the accompanying drawings or in relation to the vertical, perpendicular, or gravitational directions.

[0042] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0043] Reference Figure 1 The first exemplary embodiment of the present invention provides a concentration impeller system, which includes a concentration impeller 2, a pipeline assembly, an adsorption fan 31, a desorption fan 32, a heating device 5, a first flow valve 41, a second flow valve 42 and a third flow valve 43 (all of which are proportional valves).

[0044] Specifically, the concentrator 2 includes an adsorption zone 21, a desorption zone 22, and a cooling zone 23 arranged sequentially along the circumference. Typically, the adsorption zone 21, desorption zone 22, and cooling zone 23 are divided circumferentially on the shell of the concentrator 2. By rotating the wheel core installed inside the shell, the zeolite molecular sieves attached to the wheel core can circulate through the adsorption zone 21, desorption zone 22, and cooling zone 23 in the direction of rotation, thereby periodically adsorbing and desorbing organic matter in the waste gas.

[0045] The piping assembly includes an adsorption pipe 81, a cooling pipe 82, a desorption pipe 83, a desorption circulation pipe 84, an air regulating pipe 85, and an extension pipe. The adsorption pipe 81 is connected in series with an adsorption fan 31 and an adsorption zone 21; the cooling pipe 82 is connected in series with a first flow valve 41 and a cooling zone 23; the desorption pipe 83 is connected in series with a desorption fan 32, a heating device 5, a second flow valve 42, and a desorption zone 22; and the air regulating pipe 85 is connected in series with a third flow valve 43.

[0046] Furthermore, the front end of cooling pipe 82 is connected to the section between the two ends of adsorption pipe 81, and the rear end of cooling pipe 82 is connected to the front end of extension pipe. A first flow valve 41 is positioned in front of cooling zone 23. The front end of regulating air pipe 85 is connected to the rear end of cooling pipe 82, and the rear end of regulating air pipe 85 is connected to the front end of desorption pipe 83. The rear end of desorption circulation pipe 84 is connected to the front end of desorption pipe 83, and the section of desorption pipe 83 between its rear end and desorption zone 22 is connected to the front end of desorption circulation pipe 84. Heating device 5 is positioned in front of desorption zone 22, and a second flow valve 42 is positioned between the front end of desorption circulation pipe 84 and the rear end of desorption pipe 83.

[0047] When the concentrator rotary system of this exemplary embodiment is used to treat large volume, low concentration exhaust gas, the adsorption fan 31 and the desorption fan 32 are started. The exhaust gas 11 to be treated is introduced from the front end of the adsorption pipeline 81. When the exhaust gas passes through the adsorption zone 21, the zeolite molecular sieve attached to the wheel core can adsorb the organic matter in the exhaust gas to purify the exhaust gas. Then the purified gas 12 is discharged out of the system through the rear end of the adsorption pipeline 81.

[0048] A portion of the gas in the adsorption pipe 81 is diverted to the cooling pipe 82. Whether this diverted gas is waste gas or purified gas depends on whether the front end of the cooling pipe 82 is located before or after the adsorption zone 21. Since the cooling pipe 82 is connected in series with a first flow valve 41, the airflow in the cooling pipe 82 can be adjusted by regulating the opening of the first flow valve 41. Typically, the airflow in the cooling pipe 82 will not be too low; otherwise, it will not meet the requirements of cooling the wheel core and regenerating the wheel core for reuse in adsorption.

[0049] The rear end of the cooling pipe 82 is connected to both the front end of the extension pipe and the front end of the regulating air pipe 85, thus a second gas split occurs at the rear end of the cooling pipe 82. Since the regulating air pipe 85 is connected in series with a third flow valve 43, the air volume in the regulating air pipe 85 can be adjusted by adjusting the opening of the third flow valve 43, and correspondingly, the air volume in the extension pipe can also be adjusted synchronously.

[0050] The gas in the desorption pipeline 83 needs to be heated by the heating device 5 before entering the desorption zone 22. When the heated gas passes through the desorption zone 22, the organic matter adsorbed by the zeolite molecular sieve is heated and detached, then discharged from the rear end of the desorption pipeline 83 to enter the end-of-line treatment system for further processing. The end-of-line treatment system includes systems capable of performing different processes such as RTO, CO, or condensation. For example, when the end-of-line treatment system is a condensation system, the rear end of the desorption pipeline 83 is connected to the condensation inlet 13 of the condensation system.

[0051] A portion of the gas in desorption line 83 is diverted to desorption circulation line 84 before exiting the system. The rear end of desorption circulation line 84 can then reintroduce the gas into the front end of desorption line 83, which is connected to the rear end of regulating air line 85. Therefore, the airflow introduced from the front end of desorption line 83 consists of two parts: one part from desorption circulation line 84 and the other part from regulating air line 85.

[0052] When the system is running stably, according to the law of conservation of mass, the air volume in the air regulating duct 85 should be equal to the air volume discharged from the rear end of the desorption duct 83. At this time, it is necessary to reasonably adjust the opening of the second flow valve 42 and the third flow valve 43 to satisfy the above law of conservation of mass.

[0053] Based on the above principles, the condenser rotary system of this exemplary embodiment can achieve stable operation by reasonably adjusting the opening of the first flow valve 41, the second flow valve 42, and the third flow valve 43. During stable operation, the desorption circulation pipeline 84 and the extension pipeline divert most of the air volume in the system. Thus, under the objective law of mass conservation, the air volume discharged from the rear end of the desorption pipeline 83 is equal to a small portion of the air volume in the regulating pipeline 85. At this time, the difference between the air volume entering the system from the front end of the adsorption pipeline 81 and the air volume discharged from the rear end of the desorption pipeline 83 is relatively large. Compared with the prior art, the concentration ratio (defined as the ratio of the amount of waste gas entering the front end of the adsorption pipeline 81 to the amount of waste gas discharged from the rear end of the desorption pipeline 83) can be greatly improved.

[0054] Furthermore, if there are fluctuations in the source of the exhaust gas, the concentration ratio can be adaptively adjusted by regulating the opening of the third flow valve 43, offering flexibility and convenience. Therefore, the concentrator rotary system of this exemplary embodiment is particularly suitable for the recovery needs of high-value exhaust gases such as NMP and IPA.

[0055] Furthermore, the extension pipe can be configured as an adsorption return air pipe. As mentioned above, the front end of the extension pipe is connected to the rear end of the cooling pipe 82, that is, the front end of the adsorption return air pipe is connected to the rear end of the cooling pipe 82. In addition, the rear end of the adsorption return air pipe is connected to the pipe section of the adsorption pipe 81 located in front of the adsorption zone 21, and the front end of the cooling pipe 82 is located behind the rear end of the adsorption return air pipe. The concentrator wheel system also includes a heat exchange assembly, which is configured to cool the gas in the adsorption return air pipe.

[0056] It should be noted that the gas in cooling pipe 82 undergoes heat exchange as it passes through cooling zone 23, causing its temperature to rise. Consequently, the gas temperature in the adsorption return air pipe will be higher than that in adsorption pipe 81. If the gas temperature in adsorption pipe 81 is too high, it will affect the adsorption effect and cause a decrease in purification efficiency. To address this, a heat exchange assembly is installed to cool the gas in the adsorption return air pipe before it flows back to adsorption pipe 81. This ensures that the temperature of the gas returning to adsorption pipe 81 is approximately the same as the temperature of the waste gas 11 to be treated, effectively solving the problem of decreased purification efficiency. Furthermore, it ensures that the gas diverted to cooling pipe 82 has a suitable temperature for cooling in cooling zone 23.

[0057] In addition, the heat exchange assembly can also be configured to heat the gas in the desorption circulation line 84, so that the gas returning from the desorption circulation line 84 to the desorption line 83 is preheated, which helps to reduce the energy consumption of the heating device 5.

[0058] In one embodiment, the rear end of the desorption line 83 is used to connect to the inlet end of the condensation treatment system (which has a condensation treatment inlet 13). At this time, refer to... Figure 1The heat exchange assembly may include a first heat exchanger 61 and a second heat exchanger 62. The first heat exchanger 61 includes a first hot fluid channel and a first cold fluid channel capable of heat exchange, and the second heat exchanger 62 includes a second hot fluid channel and a second cold fluid channel capable of heat exchange. The desorption circulation pipe 84 is connected in series with the first cold fluid channel, and the adsorption return air pipe is connected in series with the first hot fluid channel and the second hot fluid channel along the gas flow direction. The second cold fluid channel is configured to allow the introduction of condensate generated by the condensation treatment system.

[0059] More specifically, the adsorption return air duct includes a primary heat exchange section 86, a secondary heat exchange section 87, and a return air duct section 88. The front end of the primary heat exchange section 86 is the front end of the adsorption return air duct, and the rear end of the primary heat exchange section 86 is connected to the inlet end of the first hot fluid channel. The front end of the secondary heat exchange section 87 is connected to the outlet end of the first hot fluid channel, and the rear end of the secondary heat exchange section 87 is connected to the inlet end of the second hot fluid channel. The front end of the return air duct section 88 is connected to the outlet end of the second hot fluid channel, and the rear end of the return air duct section 88 is the rear end of the adsorption return air duct.

[0060] By employing the first heat exchanger 61 and the second heat exchanger 62, the low-quality heat source in the cooling pipe 82 and the low-quality cold source (condensate) generated in the condensation treatment system can be effectively recovered and utilized, thereby reducing the overall energy consumption of the concentration wheel system and improving the economic efficiency of NMP, IPA and other waste gas treatment.

[0061] To reduce heat loss, insulation layers can be installed on the outside of cooling pipes 82, desorption pipes 83, desorption circulation pipes 84, air conditioning pipes 85, and adsorption return air pipes. These can be achieved by wrapping the pipes with insulation cotton, installing a vacuum insulation layer, or coating the outer wall of the pipes with an insulation coating.

[0062] Reference Figure 1 The front end of the cooling pipe 82 can be connected to the pipe section of the adsorption pipe 81 located behind the adsorption zone 21. In this case, the gas entering the cooling pipe 82 is purified gas. Based on this, in one embodiment, the pipe section between the rear end of the adsorption pipe 81 and the front end of the cooling pipe 82 can be connected to the rear end of the extension pipe. In this case, the gas discharged from the rear end of the extension pipe is also purified gas and is directly discharged to the rear end of the adsorption pipe 81.

[0063] In addition, to simplify the pipeline structure, the concentrator system may be equipped with a first three-way valve 71, a second three-way valve 72, a third three-way valve 73, a fourth three-way valve 74, and a fifth three-way valve 75 for connecting multiple pipe sections.

[0064] For details, please refer to Figure 1The first three-way valve 71 is arranged between the rear end of the adsorption return air duct and the adsorption duct 81; the second three-way valve 72 is arranged between the front end of the cooling duct 82 and the adsorption duct 81; the third three-way valve 73 is arranged between the front end of the desorption circulation duct 84 and the desorption duct 83; the fourth three-way valve 74 is arranged between the rear end of the desorption circulation duct 84, the front end of the desorption duct 83, and the rear end of the regulating air duct 85; and the fifth three-way valve 75 is arranged between the rear end of the cooling duct 82, the front end of the adsorption return air duct, and the front end of the regulating air duct 85.

[0065] A second exemplary embodiment of the present invention also provides an exhaust gas treatment system, which includes the above-described concentrator rotary system. In conjunction with the foregoing, the exhaust gas treatment system may further include an end-of-pipe treatment system; when the end-of-pipe treatment system is a condensation treatment system, the rear end of the desorption pipeline 83 is connected to the inlet end of the condensation treatment system.

[0066] In engineering applications, to match the performance requirements of high concentration ratios, the engineering team needs to select a suitable model of the concentration wheel 2 and design the process parameters of the concentration wheel system.

[0067] Therefore, a third exemplary embodiment of the present invention also provides a design method for a condensation impeller system, the design method comprising:

[0068] Step S0: Determine the model of the concentration rotor 2

[0069] Specifically, ignoring the influence of return air, the purification efficiency requirements are determined based on the composition, concentration, and air volume of the waste gas 11 to be treated, the surface velocity range is preset, and a suitable model of the concentrator 2 is determined.

[0070] Step S1: Determine the concentration ratio

[0071] Specifically, based on the waste gas concentration requirements at the condensation treatment inlet 13 and in conjunction with explosion-proof requirements, the concentration ratio of the concentrator system is determined.

[0072] Step S2: Determine the air volume of duct 85.

[0073] Specifically, based on the concentration ratio, the air volume at the condensation treatment inlet 13 is determined, and according to the law of conservation of mass, the air volume of the air duct 85 is equal to the air volume at the condensation treatment inlet 13.

[0074] Step S3: Determine the airflow of each of the cooling pipe 82 and the desorption pipe 83.

[0075] Specifically, based on the surface velocity, the size of the cooling zone 23 and the size of the desorption zone 22, the air volume of the cooling pipe 82 and the desorption pipe 83 are calculated respectively, and the opening of the first flow valve 41 and the opening of the second flow valve 42 are adaptively adjusted according to the determined air volume of the cooling pipe 82 and the desorption pipe 83 respectively.

[0076] Step S4: Determine the airflow of other ducts

[0077] Specifically, the air volume of the desorption circulation pipeline 84 is the difference between the air volume of the desorption pipeline 83 and the air volume of the regulating air pipeline 85. The cold fluid in the first heat exchanger 61 is the exhaust gas from the desorption circulation pipeline 84. The flow rate of the hot fluid in the first heat exchanger 61 is the difference between the air volume of the cooling pipeline 82 and the air volume of the regulating air pipeline 85. The air volume of the secondary heat exchange section 87 is the same as the air volume of the return air section 88 and is the difference between the air volume of the cooling pipeline 82 and the air volume of the regulating air pipeline 85. The hot fluid in the second heat exchanger 62 comes from the secondary heat exchange section 87.

[0078] Step S5: Determine the flow rate of the cold fluid in the second heat exchanger 62.

[0079] Specifically, based on the cooling requirements of the return air exhaust gas and in combination with the heat exchanger efficiency, the flow rate of the cold fluid in the second heat exchanger 62 is determined.

[0080] Step S6: Determine the airflow of adsorption duct 81

[0081] Specifically, the air volume of the adsorption pipeline 81 is the sum of the air volume of the waste gas to be treated 11 and the air volume of the return waste gas.

[0082] Step S7: Determine the concentration of waste gas in adsorption pipeline 81

[0083] Specifically, the concentration of the return air exhaust gas is (1 - purification efficiency) * the concentration of the exhaust gas 11 to be treated. At this time, the exhaust gas concentration in the adsorption pipeline 81 is (air volume of return air exhaust gas * concentration of return air exhaust gas + air volume of exhaust gas 11 to be treated * concentration of exhaust gas 11 to be treated) / (air volume of return air exhaust gas + air volume of exhaust gas 11 to be treated).

[0084] Step S8: Verify whether the purification efficiency meets the standard.

[0085] Specifically, based on the air volume and exhaust gas concentration of the adsorption pipeline 81 determined in steps S6 and S7, and the model of the concentrator 2 proposed in step S0, the purification efficiency is checked to see if it meets the emission requirements. If it does not meet the requirements, return to S0 and select a model of the concentrator 2 with a larger size. If it meets the requirements, output the process parameters.

[0086] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0087] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the embodiments of the present invention will not describe the various possible combinations separately.

[0088] Furthermore, various different implementations of the present invention can be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed in the present invention.

Claims

1. A concentration rotary system, characterized in that, The concentration turbine system includes: The concentrator (2) includes an adsorption zone (21), a desorption zone (22) and a cooling zone (23) arranged sequentially along the circumference. The piping assembly includes an adsorption pipe (81), a cooling pipe (82), a desorption pipe (83), a desorption circulation pipe (84), an air regulating pipe (85), and an extension pipe. The adsorption pipe (81) is connected in series with an adsorption fan (31) and the adsorption zone (21). The cooling pipe (82) is connected in series with a first flow valve (41) and the cooling zone (23). The desorption pipe (83) is connected in series with a desorption fan (32), a heating device (5), a second flow valve (42), and the desorption zone (22). The air regulating pipe (85) is connected in series with a third flow valve (43). The front end of the cooling pipe (82) is connected to the pipe section between the two ends of the adsorption pipe (81), the rear end of the cooling pipe (82) is connected to the front end of the extension pipe, the first flow valve (41) is arranged in front of the cooling zone (23), the front end of the air regulating pipe (85) is connected to the rear end of the cooling pipe (82), the rear end of the air regulating pipe (85) is connected to the front end of the desorption pipe (83), the rear end of the desorption circulation pipe (84) is connected to the front end of the desorption pipe (83), the pipe section between the rear end of the desorption pipe (83) and the desorption zone (22) is connected to the front end of the desorption circulation pipe (84), the heating device (5) is arranged in front of the desorption zone (22), and the second flow valve (42) is arranged between the front end of the desorption circulation pipe (84) and the rear end of the desorption pipe (83). The extended pipeline is formed as an adsorption return air pipeline. The rear end of the adsorption return air pipeline is connected to the section of the adsorption pipeline (81) located in front of the adsorption zone (21). The front end of the cooling pipeline (82) is located behind the rear end of the adsorption return air pipeline. The concentrator wheel system also includes a heat exchange assembly, which is configured to cool the gas in the adsorption return air pipeline. The heat exchange assembly is configured to heat the gas in the desorption circulation line (84); The rear end of the desorption pipeline (83) is configured to connect to the inlet end of the condensation treatment system. The heat exchange assembly includes a first heat exchanger (61) and a second heat exchanger (62). The first heat exchanger (61) includes a first hot fluid channel and a first cold fluid channel capable of heat exchange. The second heat exchanger (62) includes a second hot fluid channel and a second cold fluid channel capable of heat exchange. The desorption circulation pipeline (84) is connected in series with the first cold fluid channel, and the adsorption return air pipeline is connected in series with the first hot fluid channel and the second hot fluid channel along the gas flow direction. The second cold fluid channel is configured to allow the condensate generated by the condensation treatment system to pass through.

2. The concentration impeller system according to claim 1, characterized in that, The cooling pipe (82), the desorption pipe (83), the desorption circulation pipe (84), the air regulating pipe (85), and the adsorption return air pipe are all provided with an insulation layer.

3. The concentration impeller system according to claim 1, characterized in that, The concentration rotary system includes a first three-way valve (71), a second three-way valve (72), a third three-way valve (73), a fourth three-way valve (74), and a fifth three-way valve (75). The first three-way valve (71) is arranged between the rear end of the adsorption return air duct and the adsorption duct (81). The second three-way valve (72) is arranged between the front end of the cooling duct (82) and the adsorption duct (81). The third three-way valve (73) is arranged between the front end of the desorption circulation duct (84) and the desorption duct (83). The fourth three-way valve (74) is arranged between the rear end of the desorption circulation duct (84), the front end of the desorption duct (83), and the rear end of the regulating air duct (85). The fifth three-way valve (75) is arranged between the rear end of the cooling duct (82), the front end of the adsorption return air duct, and the front end of the regulating air duct (85).

4. The concentration impeller system according to claim 1, characterized in that, The front end of the cooling pipe (82) is connected to the section of the adsorption pipe (81) located behind the adsorption zone (21).

5. The concentration impeller system according to claim 4, characterized in that, The section of the adsorption pipe (81) between its own rear end and the front end of the cooling pipe (82) is connected to the rear end of the extension pipe.

6. A waste gas treatment system, characterized in that, The exhaust gas treatment system includes a concentrator rotary system according to any one of claims 1 to 5.

7. The waste gas treatment system according to claim 6, characterized in that, The exhaust gas treatment system also includes a condensation treatment system, and the rear end of the desorption pipeline (83) is connected to the inlet end of the condensation treatment system.

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