JP5581554B2 - Adsorption / desorption type concentrator - Google Patents

Description

  In the present invention, gaseous removal target substances (for example, volatile organic compounds used as solvents for various purposes, malodorous substances generated in various processes, etc.) contained in the process target air are treated from the process target air. The present invention relates to an adsorption / desorption type concentrator using an adsorption rotor that is recovered in a concentrated state.

  In detail (refer to FIG. 27 or FIG. 28), the air-permeable adsorption rotor 1 holding the adsorbent X is provided, and the processing area 2, the regeneration area 3, and the purge area 4 are provided in the rotation area of the adsorption rotor 1. The section is formed in the state of being arranged in the rotor rotation order in that order, and each part in the rotation direction of the adsorption rotor 1 is repeatedly passed through the processing area 2, the regeneration area 3 and the purge area 4 in this order from the rotation of the adsorption rotor 1. The present invention relates to an adsorption / desorption type concentrating device.

  In this adsorption / desorption type concentrator, each of the treatment area 2, the regeneration area 3, and the purge area 4 is caused to function as follows.

  In the treatment area 2, by passing the treatment target air IA through the rotor portion in the region passing process, the gaseous removal target substance V contained in the treatment target air IA is retained in the rotor portion in the region passage process. It is made to adsorb | suck to X, and is separated and removed from the process target air IA.

  In the regeneration zone 3, the rotor portion in the process of passing through the zone is passed through the regeneration air RA heated by the regeneration heating means 5 (specifically, fresh regeneration air that is still unused as regeneration air), whereby the rotor The removal target substance V adsorbed by the portion of the retained adsorbent X in the processing area 2 is desorbed from the processing target air IA to the regeneration air RA having a smaller air volume to regenerate the retained adsorbent X of the rotor portion that is passing through the area. .

  In the purge zone 4, the purged air PA is blown through the rotor portion in the region passing process (that is, the rotor portion that has passed through the regeneration zone 3), so that the retained adsorbent X of the rotor portion in the zone passing process is Cool before moving to the treatment area 2.

  That is, in this adsorption / desorption type concentrating device, the removal target substance V separated and removed from the processing target air IA by adsorption to the adsorbent X in the processing zone 2 is desorbed from the adsorbent X in the regeneration zone 3 to regenerate a small amount of air. By moving to the production air RA, a small amount of used regeneration air RA ′ having passed through the regeneration zone 3 is taken out of the apparatus in the form of concentrated air with the concentration of the substance V to be removed increased. The gaseous removal target substance V contained in the air IA in a low concentration state is collected in a concentrated state.

  Conventionally, in this type of adsorption / desorption type concentrator, for example, as seen in Patent Documents 1 and 2 (see FIGS. 27 and 28), the removal target substance V adsorbed by the adsorbent X in the treatment area 2 is regenerated in the regeneration area 3. As the regeneration air RA to be desorbed from the adsorbent X, air such as outside air heated by the regeneration heating means 5 or steam (water vapor) is passed through the regeneration zone 3.

  Further, as can be seen in Patent Documents 1 and 2 (see FIGS. 27 and 28), the used purge air PA ′ that has passed through the purge zone 4 is used as a part of the regeneration air RA together with the air and steam. It is also known to pass through the regeneration zone 3 while being heated by the regeneration heating means 5.

JP-A-53-50069 (especially FIG. 1) JP-A-7-75714 (particularly FIG. 2) JP-A-2-214516 JP-A-54-26971 (especially FIG. 1)

  By the way, the concentration factor C of the removal target substance V in this type of adsorption / desorption type concentrator (that is, the concentration ratio of the treatment target substance V separated and removed from the treatment target air IA in the treatment zone 2) is expressed by the following equation. The

C = Qi / Qo
Qi: Air volume of the processing target air IA to be passed through the processing area 2 Qo: Air volume of the used regeneration air RA ′ taken out of the apparatus as concentrated air after passing through the regeneration area 3 (in other words, in the regeneration area 3 Air volume of fresh regeneration air RA passed through)

  That is, in order to increase the concentration ratio C in this type of adsorption / desorption type concentrator, the amount of the regeneration air RA (fresh regeneration air) that is passed through the regeneration zone 3 is limited to a small amount so as to be concentrated outside the device as the concentrated air. It is necessary to reduce the air volume Qo of the used regeneration air RA ′ taken out.

  However, in the air volume restriction method in which the air volume of the regeneration air RA is simply limited to a small amount to increase the concentration ratio C, the desorbed substance concentration (concentration of the desorbed removal target substance V) in the regeneration air RA in the regeneration zone 3 is Since the desorption efficiency in the regeneration zone 3 is reduced by increasing the amount of the regeneration air RA in a small amount, the substance recovery efficiency η of the apparatus (that is, the air to be treated in the treatment zone 2 as shown in FIG. 29). There is a problem in that the efficiency of separating and removing the substance V to be removed from the IA by adsorption is reduced.

  That is, as the air volume of the regeneration air RA (fresh regeneration air) decreases, it becomes more difficult to desorb the removal target substance V from the adsorbent X in the regeneration zone 3, and the removal target substance V in the adsorption state This results in a state of insufficient desorption (in other words, a state of insufficient regeneration) remaining in the adsorbent X without a substantial amount of being desorbed, and this causes the material recovery efficiency η (in other words, of the target air IA to be treated). (Purification efficiency) decreases.

  On the other hand, as a method for increasing the concentration factor C while maintaining a large air flow rate in the regeneration zone 3, as shown in, for example, Patent Document 3 (see FIG. 30), the used regeneration air RA that has passed through the regeneration zone 3 is used. There is also a partial circulation type in which a part of 'is passed through the regeneration zone 3 together with the regeneration air RA (fresh regeneration air) as the circulation regeneration air RA ".

  That is, the partial circulation type concentrating device circulates a part of the used regeneration air RA ′ again as the circulation regeneration air R ″ to the regeneration area 3 while maintaining a large amount of air passing through the regeneration area 3. , The air volume of the regeneration air RA (fresh regeneration air) is reduced, thereby reducing the air volume Qo of the used regeneration air RA ′ taken out of the apparatus as concentrated air, and the concentration factor C = Qi / Qo Is to raise.

  In this partial circulation type concentrator, the contact efficiency between the adsorbent X and the regeneration air RA (including the circulation regeneration air R ″) in the regeneration zone 3 is increased. Reducing the air volume of regeneration air RA (fresh regeneration air) and setting a high concentration ratio C, while maintaining a higher desorption efficiency in the regeneration zone 3, and thus a higher material recovery efficiency η. There is an advantage that can be.

  However, even in this partial circulation type concentrating device, basically the concentration rate is reduced by reducing the amount of air of the regeneration air RA (fresh regeneration air) that is passed through the regeneration region 3 in the same manner as the air amount restriction method. Since it is a method of increasing C, the concentration of the desorbed substance of the passing air in the regeneration zone 3 is increased and the desorption efficiency in the desorption zone 3 is limited, that is, the above-mentioned insufficient desorption state is likely to occur. However, in this respect, the decrease in the substance recovery efficiency η accompanying the increase in the concentration factor C was still unavoidable.

  In order to avoid such a decrease in the substance recovery efficiency η, it is necessary to increase the temperature of the regeneration zone 3 (≈the temperature of the regeneration air RA) to avoid the occurrence of insufficient desorption. In order to increase the temperature of the regeneration zone 3, apparatus components having high heat resistance and pressure resistance are required, and heavy insulation is also required, resulting in a problem that the apparatus cost increases.

  Furthermore, even if equipment components having high heat resistance and pressure resistance are used, increasing the temperature of the regeneration zone 3 has limitations in terms of heat resistance and pressure resistance. In some cases, the decline cannot be avoided.

  In view of this situation, the main problem of the present invention is that by adopting a rational apparatus configuration, it is possible to obtain a high concentration ratio C while ensuring a high substance recovery efficiency η of the apparatus. The object is to provide an adsorption / desorption type concentrator that is advantageous in terms of cost.

The first characteristic configuration of the present invention relating to the adsorption / desorption type concentrator is as follows:
While equipped with a breathable adsorption rotor holding the adsorbent,
A process area, a regeneration area, and a purge area are formed in the rotation area of the adsorption rotor in a state of being arranged in the rotor rotation direction in that order,
From the rotation of the suction rotor, each part in the rotation direction of the suction rotor is configured to repeatedly pass through the processing area, the regeneration area, and the purge area in that order,
In the treatment area, by passing the air to be treated through the rotor portion in the process of passing through the region, the gaseous removal target substance contained in the air to be treated is adsorbed to the holding adsorbent of the rotor part in the process of passing through the region. To separate and remove from the target air
In the regeneration zone, the air for regeneration is passed through the rotor portion that is in the process of passing through the zone, so that the removal target substance adsorbed in the processing zone by the retained adsorbent of the rotor portion is used for regeneration with a smaller air volume than the processing target air. Desorb to air, regenerate the retained adsorbent of the rotor part in the process of passing through the region,
In the purge region, an adsorption / desorption type concentrator configured to cool the retained adsorbent of the rotor part in the region passing process by passing the purge air to the rotor part in the region passing process,
A part of the used regeneration air that has passed through the regeneration area is passed through the regeneration area together with the regeneration air as circulation regeneration air,
While heating the regeneration air or the circulation regeneration air by the regeneration heating means, and humidifying to the unsaturated humidified state by the regeneration humidification means ,
In the regeneration zone, in the holding adsorbent of the rotor part in which the moisture in the unsaturated humidified state that has been humidified by the regeneration humidifying means and passes through the zone or the water contained in the circulation regeneration air is in the zone passage process. By substituting with the adsorbed material to be removed and adsorbed by the retained adsorbent, the adsorbed material to be removed from the retained adsorbent in the rotor part in the process of passing through the region is desorbed to the regeneration air with the small air volume. Let
In the treatment area, the gaseous removal target substance contained in the air to be treated that passes through the area is adsorbed by the retained adsorbent by substituting the moisture in the adsorption state in the retained adsorbent of the rotor part that is passing through the area. By the substitution adsorption, the gaseous removal target substance contained in the processing target air is adsorbed by the holding adsorbent of the rotor portion in the process of passing through the region and separated and removed from the processing target air .

  That is, as shown in Patent Document 4, when water vapor is used as the regenerating air that passes through the regenerating area, the water vapor component (that is, water) is replaced with the removal target substance in the adsorbed state and adsorbed on the adsorbent. Substitutional adsorption can occur in the regeneration zone, whereby the removal target substance in the adsorption state is driven out of the adsorbent by moisture, and the removal target substance in the adsorption state is transferred from the adsorbent to the regeneration air in the regeneration zone. Efficient desorption is possible.

  That is, by utilizing this substitution adsorption, the air volume of regeneration air (fresh regeneration air) to be passed through the regeneration area as in the above-described air volume restriction method and partial circulation method is reduced, but the above-mentioned air volume is reduced in the regeneration area. Such a state of insufficient desorption can be effectively avoided.

  However, when steam is used as regeneration air, even if it is low-temperature and low-pressure steam (for example, saturated steam at 100 ° C.), an apparatus component having appropriate heat resistance and pressure resistance is required. In order to prevent heat dissipation and condensation (especially heat dissipation and condensation in the part from the steam source to the heating means for regeneration), heavy insulation is required, which eliminates the problems of the conventional device described above in this respect. It does not lead to.

  On the other hand, as a result of experiments and the like, the inventors of the present invention have shown that the regeneration air is in a humidified state (unsaturated humid air with only high humidity) as shown in FIG. 24 without using water vapor as the regeneration air. The above-described substitutional adsorption can be caused in the regeneration zone only by changing the state), and thus the adsorption state is maintained while using low-temperature regeneration air (higher than the processing zone temperature and the purge zone temperature). It has been found that the substance to be removed can be efficiently desorbed from the adsorbent in the regeneration zone, and insufficient desorption can be effectively avoided.

  Here, the example shown in FIG. 24 is the same temperature as the case where the moisture concentration of the low-temperature regeneration air (25 ° C.) is set to 0 ppm (graph 1: equivalent to no humidification) with respect to the concentration of the substance to be removed at the regeneration zone outlet. When the moisture concentration of the low-temperature regeneration air at (25 ° C.) is set to 8013 ppm, 15977 ppm, 23894 ppm, and 31762 ppm, respectively (Graphs 2 to 5: equivalent to humidification to 25%, 50%, 75%, and 100% relative humidity) Is a comparison.

  As can be seen from this example, the concentration of the substance to be removed in the used regeneration air at the outlet of the regeneration zone (by simply bringing the regeneration air at a low temperature (25 ° C.) into an unsaturated humidified state having a moisture concentration of a certain level or more ( That is, the concentration of the removal target desorbed from the adsorbent in the regeneration zone can be secured high. In other words, the moisture given to the regeneration air by humidification is replaced with the removal target substance in the adsorption state, thereby Substitution adsorption to be adsorbed occurs, whereby the substance to be removed in the adsorbed state (in this example, isopropyl alcohol: IPA) is efficiently desorbed from the adsorbent.

  Therefore, in the first characteristic configuration, the regeneration air or the circulation regeneration air (either one or both of them) to be passed through the regeneration zone is heated by the regeneration heating means and humidified by the regeneration humidification means. By using an unsaturated humidified state having a moisture concentration above a certain level, while using low-temperature regeneration air, the air volume of regeneration air (fresh regeneration air) is reduced and the concentration factor C is increased. However, it is possible to effectively avoid the occurrence of insufficient desorption in the regeneration zone, thereby removing the adsorbent (that is, the fully regenerated adsorbent) in the treatment target air in the treatment zone. The adsorption function can be efficiently performed on the target substance, and the substance recovery efficiency η of the apparatus can be ensured high.

  In addition, since it is only necessary to bring the regeneration air or the circulation regeneration air into an unsaturated humidified state as described above, compared with the case where water vapor is used as the regeneration air as seen in Patent Documents 1 and 4, the apparatus configuration The heat resistance and pressure resistance required of the material can be effectively reduced, and heat dissipation and condensation of water vapor (especially, heat dissipation and condensation in the part from the steam source to the heating means for regeneration) can be prevented. For this reason, it is possible to avoid the need for heavy heat insulation, which can effectively reduce the apparatus cost.

  In addition, compared to using steam as the regeneration air, the amount of heat and water required to generate the regeneration air can be reduced, thereby reducing the operating cost and making the apparatus more advantageous in terms of energy saving. Can do.

  In the first characteristic configuration, a part of the used regeneration air is passed through the regeneration area together with the regeneration air as circulation regeneration air (that is, the adsorbent and the regeneration air in the regeneration area). In combination with a higher concentration recovery ratio C, in combination with the fact that the system can increase the contact efficiency of the apparatus and increase the substance recovery efficiency η of the apparatus accordingly. Can be achieved more effectively, and it can be made more advantageous in terms of energy saving and operation cost reduction.

  In addition, the adsorbent that has been in a moisture adsorption state due to substitution adsorption in the regeneration area (that is, the adsorbent that has been sufficiently regenerated by effectively removing the substance to be removed) is moved to the treatment area where the air to be treated is ventilated. Then, due to the difference in the equilibrium adsorption amount at the processing zone temperature lower than the regeneration zone temperature, reverse substitution adsorption that is adsorbed by the adsorbent occurs in the state where the removal target substance in the processing target air substitutes the adsorbed moisture. This ensures a high substance recovery efficiency η as described above.

  In the implementation of the above configuration, the direction of ventilation of the air to be treated with respect to the adsorption rotor in the treatment area and the direction of ventilation of the regeneration air with respect to the adsorption rotor in the regeneration area may be either the same direction or the opposite direction. In order to ensure a higher substance recovery efficiency η, it is desirable to reverse the direction of ventilation of the air to be treated in the treatment area and the direction of ventilation of the regeneration air in the regeneration area.

  That is, the desorption of the substance to be removed by substitution adsorption as described above in the regeneration zone proceeds more effectively on the regeneration zone inlet side (regeneration air inflow side) than on the outlet side, and is therefore removed in the treatment zone. The adsorption effect on the target substance is also higher on the side corresponding to the regeneration zone inlet side than on the opposite side.

  Therefore, the treatment direction in which the concentration of the removal target substance in the processing target air passing through the processing area is gradually decreased by reversing the direction of the processing target air in the processing area and the direction of the regeneration air in the regeneration area. The substance recovery efficiency η can be increased by adopting a form in which the removal target substance is adsorbed with a higher adsorption effect toward the region outlet side.

  In the implementation of the above configuration, the humidifying means for regeneration so as to maintain the humidity of the regeneration air at the regeneration area inlet or the humidity of the used regeneration air at the regeneration area outlet (= humidity of the circulation regeneration air) at the set humidity. A humidifying amount adjusting means for regeneration that automatically adjusts the humidifying amount in the above may be provided.

  Also, it may be equipped with a set humidity changing means for regeneration that automatically changes the above set humidity according to the concentration of the substance to be removed in the air to be treated and the amount of adsorption of the substance to be removed in the treatment area. By additionally providing a humidifying amount adjusting means for regeneration and a set humidity changing means for regeneration, the above-described effects can be obtained more reliably and more stably.

  The implementation of the above configuration is not limited to an apparatus configuration that applies both heating by the regeneration heating means and humidification by the regeneration humidification means to both the regeneration air (fresh regeneration air) and the circulation regeneration air, In some cases, the heating and humidification may be performed only on one of the regeneration air (fresh regeneration air) and the circulation regeneration air.

  Further, as a reference configuration, a configuration in which the purge region is omitted in the first characteristic configuration is also conceivable, and in this reference configuration, substantially the same effect as described above can be obtained.

The second characteristic configuration of the present invention relating to the adsorption / desorption type concentrating device is:
While equipped with a breathable adsorption rotor holding the adsorbent,
A process area, a regeneration area, and a purge area are formed in the rotation area of the adsorption rotor in a state of being arranged in the rotor rotation direction in that order,
From the rotation of the suction rotor, each part in the rotation direction of the suction rotor is configured to repeatedly pass through the processing area, the regeneration area, and the purge area in that order,
In the treatment area, by passing the air to be treated through the rotor portion in the process of passing through the region, the gaseous removal target substance contained in the air to be treated is adsorbed to the holding adsorbent of the rotor part in the process of passing through the region. To separate and remove from the target air
In the regeneration zone, the air for regeneration is passed through the rotor portion that is in the process of passing through the zone, so that the removal target substance adsorbed in the processing zone by the retained adsorbent of the rotor portion is used for regeneration with a smaller air volume than the processing target air. Desorb to air, regenerate the retained adsorbent of the rotor part in the process of passing through the region,
In the purge region, an adsorption / desorption type concentrator configured to cool the retained adsorbent of the rotor part in the region passing process by passing the purge air to the rotor part in the region passing process,
A portion of the used regeneration air that has passed through the regeneration area is configured to pass through the regeneration area together with the regeneration air as circulation regeneration air ,
The regeneration air or the circulation regeneration air is heated by a regeneration heating means,
By humidifying the purge air to be passed through the purge zone into an unsaturated humidified state by the purge humidifying means ,
In the purge zone, the moisture contained in the unsaturated humidified purge air that is humidified by the purge humidifying means and passes through the zone is the residual removal target substance in the adsorption state in the retained adsorbent of the rotor part in the zone passing process. By substituting and being adsorbed by the retained adsorbent, the residual removal target substance in the adsorbed state in the retained adsorbent of the rotor part that is passing through the region is desorbed to the purge air,
In the treatment area, the gaseous removal target substance contained in the air to be treated that passes through the area is adsorbed by the retained adsorbent by substituting the moisture in the adsorption state in the retained adsorbent of the rotor part that is passing through the area. By the substitution adsorption, the gaseous removal target substance contained in the processing target air is adsorbed by the holding adsorbent of the rotor portion in the process of passing through the region and separated and removed from the processing target air .

  That is, according to the second characteristic configuration, even if the above-described insufficient desorption state occurs in the regeneration zone, the purge air that is passed to the next purge zone is humidified by the purge humidifying means, and a certain amount of moisture is exceeded. By setting the unsaturated humidified state to have a concentration, the humidified moisture given to the purge air is replaced with the removal target substance remaining in the adsorbent in the adsorbed state, and the replacement adsorption is performed in the purge area. Can be generated.

  By this substitution adsorption in the purge zone, it is possible to efficiently desorb the substance to be removed still adsorbed on the adsorbent from the adsorbent in the same manner as described above. The shortage state is resolved in the purge area, and the adsorbent is made into a sufficient moisture adsorption state (that is, the substance to be removed is effectively desorbed and sufficiently regenerated) before moving to the next processing area. be able to.

  That is, from this, as with the first characteristic configuration described above, while using low-temperature regeneration air, and increasing the concentration factor C by reducing the volume of regeneration air (fresh regeneration air) to a small amount. In the treatment area, the adsorbent (that is, the fully regenerated adsorbent) can be efficiently adsorbed to the substance to be removed in the air to be treated, and the substance recovery efficiency η of the apparatus can be secured high. it can.

  Moreover, since it is only necessary to bring the purge air into an unsaturated humidified state as described above, it is required for the apparatus constituent materials as compared with the case where steam is used as the regeneration air as seen in Patent Documents 1 and 4. Heat insulation and pressure resistance can be effectively reduced, and heavy heat insulation is provided to prevent heat dissipation and condensation of water vapor (especially heat dissipation and condensation from the steam source to the heating means for regeneration). Can be avoided, and as a result, the cost of the apparatus can be effectively reduced.

  In addition, compared with the case where steam is used as the regeneration air, the amount of heat and the amount of water required to generate the regeneration air and purge air can also be reduced, which reduces the operating cost and is advantageous in terms of energy saving. Can be a device.

  Also in this second feature configuration, a part of the used regeneration air is passed through the regeneration area together with the regeneration air as circulation regeneration air (that is, the adsorbent and regeneration in the regeneration area). Combined with the fact that the contact efficiency with air can be increased, and accordingly, the substance recovery efficiency η of the apparatus can be further increased), a high substance recovery efficiency while maintaining a high concentration ratio C The intended purpose of obtaining η can be achieved more effectively, and this can be further advantageous in terms of saving energy and reducing operating costs.

  In the implementation of the above configuration, various types of regeneration air can be used. Even if an insufficient desorption state occurs in the regeneration zone as described above, the insufficient desorption state can be eliminated in the purge region. It is possible to increase the choices in terms of the composition and temperature of the regeneration air, thereby increasing the versatility of the apparatus.

  In the implementation of the above configuration, the direction of ventilation of the processing target air with respect to the adsorption rotor in the treatment area and the direction of ventilation of the purge air with respect to the adsorption rotor in the purge area may be either the same direction or in the opposite direction. In order to secure a higher substance recovery efficiency η, it is desirable to reverse the direction of ventilation of the air to be treated in the treatment area and the direction of ventilation of the purge air in the purge area.

  That is, the desorption of the substance to be removed by substitution adsorption as described above in the purge zone proceeds more effectively on the purge zone inlet side (purging air inflow side) than on the outlet side. The adsorption effect on the substance to be removed is also higher on the side corresponding to the purge zone inlet side than on the opposite side.

  Accordingly, the flow direction of the target air in the processing area and the direction of the purge air flow in the purge area are opposite to each other, so that the concentration of the removal target substance in the processing target air passing through the processing area gradually decreases. The substance recovery efficiency η can be increased by adopting a form in which the removal target substance is adsorbed with a higher adsorption effect toward the region outlet side.

  In the implementation of the above configuration, the humidification amount in the purge humidifying means is automatically set so that the humidity of the purge air at the purge zone inlet or the used purge air at the purge zone outlet is kept at the set humidity. You may equip the humidification amount adjustment means for the purge to adjust.

  In addition, it may be equipped with a setting humidity changing means for purging that automatically changes the set humidity according to the concentration of the substance to be removed in the air to be treated and the amount of adsorption of the substance to be removed in the treatment area. By additionally providing a humidifying amount adjusting means for purging and a setting humidity changing means for purging, the above-described effects can be obtained more reliably and stably.

  In the implementation of the first characteristic configuration or the second characteristic configuration, a high concentration ratio C and a high substance recovery efficiency η can be obtained even with low-temperature regeneration air, so that the regeneration air of less than 100 ° C. is passed through the regeneration zone. It can also be.

  In other words, taking advantage of the fact that low-temperature regeneration air is sufficient, the temperature of the regeneration air can be made less than 100 ° C., so that the device can be handled very easily. By setting the temperature of the working air to a temperature lower than 100 ° C., which is the boiling point of water, it is possible to easily manage the humidity of the regenerating air.

  In the implementation of the first characteristic configuration or the second characteristic configuration, various types of humidifiers such as a water heating type that generates steam by heating water can be used as the humidifying means for regeneration or the humidifying means for purging. However, since it is only necessary to humidify the air to be humidified to an unsaturated humidified state, as a humidifying means for regeneration or a humidifying means for purging, a vaporization type that evaporates the water impregnated in the impregnating material in the air to be humidified or Alternatively, a water spray type that evaporates spray water in the air to be humidified, or an ultrasonic type humidifier that imparts ultrasonic vibration to the water and scatters water particles in the air to be humidified can be used.

  That is, by using these vaporizing, water spraying, and ultrasonic humidifiers, the device configuration can be simplified and the device can be easily manufactured as compared to using a water heating humidifier. Maintenance can also be facilitated, and in this respect, the apparatus can be further improved in terms of handleability.

  Furthermore, in the implementation of the first characteristic configuration or the second characteristic configuration, the temperature of the regeneration air at the regeneration zone inlet or the temperature of the used regeneration air at the regeneration zone outlet (= the temperature of the circulation regeneration air) is set. Regeneration heating amount adjustment means that automatically adjusts the heating amount in the regeneration heating means so as to maintain the set temperature, concentration of the removal target substance in the treatment target air, adsorption amount of the removal target substance in the treatment area, etc. It may be equipped with a set temperature changing means for regeneration that automatically changes the set temperature in accordance with the above.

  In the implementation of the first feature configuration or the second feature configuration, the first and second feature configurations may be configured in parallel.

  That is, if this parallel execution is performed, the intended purpose of obtaining a high substance recovery efficiency η while achieving a high concentration ratio C can be achieved more effectively and reliably, and the removal target in the processing target air can be achieved. It is possible to make the apparatus particularly suitable when the fluctuation of the apparatus load is large, such as a large change in concentration of the substance.

The third feature configuration of the present invention is the second feature configuration,
The purge air is heated by the purge heating means before being humidified by the purge humidification means.

    In other words, according to the third characteristic configuration, the purge air is heated by the purge heating means before being humidified by the purge humidification means, so that it is humidified by the purge humidification means as compared with the case where the heating is not performed. The allowable humidification amount of the purge air (that is, the humidified water amount that can be retained in the purge air) can be increased.

  This makes it possible to more effectively and reliably eliminate the insufficient desorption state due to substitution adsorption as described above in the purge zone (that is, desorption of the removal target substance still remaining in the adsorbent). As a result, the intended purpose of obtaining a high substance recovery efficiency η while maintaining a high concentration ratio C can be achieved more effectively and reliably.

The fourth feature configuration of the present invention is any one of the first to third feature configurations,
The used purge air that has passed through the purge zone is configured to pass through the regeneration zone as the regeneration air.

  That is, the use of the used purge air that has passed through the purge zone as part of the regeneration air (fresh regeneration air) for the purpose of heat recovery can also be seen in Patent Documents 1 and 2 described above. In the implementation of any one of the third to third features, if the purge air used as described above is used as regeneration air, the following effects can be obtained in addition to heat recovery.

  That is, in order to move to the purge area together with the rotor part in a state where a part of the regeneration air ventilated in the regeneration area and the circulation regeneration air remain in the rotor part moving from the regeneration area to the next purge area, In the purge area, as the rotor part in the process of passing through the area is cooled by ventilating the purge air and the retained adsorbent in the rotor part is cooled, the regeneration air remaining in the rotor part and the circulation regeneration air are also purged. Taken away with air.

  Therefore, in the configuration in which the regeneration air to be passed through the regeneration zone or the circulation regeneration air is humidified by the regeneration humidifying means, the used purge air that has passed through the purge zone has the heat amount obtained by cooling the rotor portion and the rotor portion. In addition, the used purge air is used as the regeneration air as described above to retain the humidified moisture of the remaining regeneration air and circulation regeneration air. It is also possible to collect the amount of humidified water taken out from the water, and to contribute to the desorption of the substance to be removed in the regeneration zone.

  Further, in the configuration in which the purge air is humidified by the purge humidifying means, the surplus purge contained in the used purge air that has passed through the purge zone can be obtained by using the used purge air as regeneration air as described above. It is possible to recover the humidified water that has passed through the purge area without contributing to the substitutional adsorption due to the humidified water or the bypass factor, and to contribute to the desorption of the component to be removed in the regeneration area.

  And these can further reduce the amount of humidification required in the humidifying means for regeneration and the humidifying means for purging (that is, a small necessary amount of humidification because it only needs to be humidified in an unsaturated humidified state). In addition, the operating cost of the apparatus can be further reduced, and energy saving can be made more advantageous.

  This effect can also be obtained when both the regeneration humidifying means and the purge humidifying means are provided.

  In addition, the used purge air that has passed through the purge zone contains substances to be removed by bringing in regeneration air from the regeneration zone and circulating regeneration air and desorbing in the purge zone. The removal target substance contained in the used purge air is included in the used regeneration air taken out of the apparatus as concentrated air together with the removal target substance that is desorbed from the adsorbent in the regeneration zone. Can be recovered.

The fifth feature configuration of the present invention is the fourth feature configuration,
The total amount of the regeneration air is configured to use spent purge air that has passed through the purge zone.

  That is, the fifth characteristic configuration utilizes the fact that, as described above, a high material recovery efficiency η can be obtained while reducing the air volume of the regeneration air (fresh regeneration air) to a small concentration rate C. According to this configuration, for example, a configuration in which the mixed air of used purge air and outside air that has passed through the purge area is used as regeneration air (fresh regeneration air), or used purge air that has passed through the purge area. Compared to the configuration that is processed in another part of the device, the device configuration (especially the air channel configuration) can be simplified, which can further reduce the cost of the device and further improve the handling. Can be.

The sixth feature configuration of the present invention is the fourth or fifth feature configuration,
In parallel with passing a part of the used purge air that has passed through the purge zone to the regeneration zone as the regeneration air,
The other part of the used purge air that has passed through the purge zone is configured to pass through the treatment zone together with the processing target air as extracted air.

  That is, in a configuration in which used purge air is used as regeneration air, when the amount of regeneration air (fresh regeneration air) is reduced to increase the concentration factor C, the used purge used as regeneration air. The required air volume of the working air also becomes small, which may cause the purge air to pass through the purge area to become insufficient, and the adsorption efficiency in the processing area may be reduced.

On the other hand, according to the sixth feature, as described above, while the concentration of the purge air used as the regeneration air (fresh regeneration air) is reduced and the concentration ratio C is increased. By passing the other part of the used purge air through the treatment area as the extraction air together with the processing target air, it is possible to sufficiently secure the entire air volume of the purge air to be passed to the purge area. Adsorbent cooling and residual air scavenging can be reliably and sufficiently performed, thereby maintaining high adsorption efficiency in the treatment area and further improving the intended material recovery efficiency η. Can be achieved reliably and reliably.

  In this configuration, the removal target substance contained in the used purge air on the side that passes through the treatment area together with the treatment target air as the extraction air is adsorbed in the treatment area together with the removal target substance contained in the treatment target air. By subsequent desorption in the regeneration zone, it can be finally recovered in the state of being included in the used regeneration air taken out of the apparatus as concentrated air.

The seventh feature configuration of the present invention is the fourth or fifth feature configuration,
The configuration is such that the entire amount of used purge air that has passed through the purge zone is passed through the regeneration zone as the regeneration air.

  In other words, according to the seventh characteristic configuration, the entire amount of used purge air that has passed through the purge zone is passed through the regeneration zone as regeneration air, so the required humidification amount in the regeneration humidifying means and purge humidifying means is reduced. The effect of the fourth feature configuration that it can be reduced can be most effectively obtained.

  Further, in the implementation of the seventh characteristic configuration, when the fifth characteristic configuration is performed concurrently, that is, the amount of air for regeneration to be passed through the regeneration zone (fresh regeneration air) and the amount of air for purge air to be passed through the purge zone , And the total amount of used purge air is passed through the regeneration zone as the total amount of regeneration air, it is possible to eliminate the need for merging and diversion of the used purge air. The air path configuration of the apparatus can be simplified more effectively.

The eighth feature configuration of the present invention is any one of the first to seventh feature configurations,
The regeneration air and the circulation regeneration air are mixed and passed through the entire regeneration zone.

  That is, in this configuration, since the mixed air of the regeneration air and the circulation regeneration air is passed through the entire regeneration region, the regeneration region is divided into the upper side region and the lower side region as in the ninth feature configuration described below. In this respect, the device configuration and the air path configuration around the adsorption rotor can be simplified.

  In addition, it is possible to adjust the regeneration zone temperature in a unified manner by adjusting the heating amount in the regeneration heating means and adjusting the temperature of the mixed air. In this respect, the management of the regeneration zone temperature is facilitated. Can do.

  Furthermore, when equipped with a humidifying means for regeneration, the humidity of the regeneration humidifier is adjusted and the humidity of the mixed air is adjusted to adjust the regeneration area humidity related to the above-mentioned replacement adsorption in an integrated manner. In this respect, it is possible to easily manage the reproduction area humidity.

  In the implementation of this configuration, not only the heating mode in which the mixed air of the regeneration air and the circulation regeneration air is passed through the regeneration heating means and heated to the required temperature, the regeneration air, the circulation regeneration air, Any one of the above air may be heated by the regenerating heating means, and then the mixed air of the regenerating air and the circulating regenerating air may be used to bring the entire mixed air to the required temperature.

Furthermore, in the case where the humidifying means for regeneration is provided, the present invention is not limited to the humidification mode in which the mixed air of the regeneration air and the circulation regeneration air is passed through the regeneration humidifying means to humidify to the required humidity. Even if it takes the humidification form that humidifies one of the circulation regeneration air by the regeneration humidification means and then mixes the regeneration air and the circulation regeneration air to make the entire mixed air the required humidity. Good.

A ninth feature configuration of the present invention is any one of the first to seventh feature configurations,
The regeneration area is divided into a lower side area located on the lower side and an upper side area located on the upper side in the suction rotor rotation direction,
Passing the regeneration air through the lower side region and the upper side region in that order, and a part of the used regeneration air that has passed through the upper side region as the circulation regeneration air,
This circulation regeneration air is configured to pass through the upper side area together with the regeneration air that has passed through the lower side area.

  That is, when the regeneration air and the circulation regeneration air are passed through the entire regeneration zone in a mixed state as in the eighth feature configuration, the regeneration is achieved by mixing the circulation regeneration air having a high concentration of the desorption removal target substance. Since the concentration of the target substance to be removed in the mixed air that passes through the zone increases, the desorption capability of the mixed air with respect to the target substance adsorbed by the adsorbent is improved so that the regeneration air (fresh regeneration) before mixing the circulation regeneration air It is lower than the desorption capacity of air.

  In contrast, according to the ninth characteristic configuration described above, the circulation regeneration air and the regeneration air that has passed through the lower side region in the upper side region in the rotation direction of the rotor in the regeneration region (that is, the concentration of the desorption removal target substance). In this upper side area, the adsorbent that has adsorbed the substance to be removed is preheated and adsorbed and removed first in the upper area. The target substance can be desorbed from the adsorbent to some extent.

  Then, in the lower side region in the rotation direction of the rotor in the regeneration region, the regeneration air that is passed through the lower side region (that is, air that is fresh and has high desorption ability) is preheated in the previous upper side region. It is possible to effectively and efficiently desorb the substance to be adsorbed and removed which has been easily desorbed by heating, from the adsorbent with a high desorption capacity of the regeneration air (fresh regeneration air).

  That is, by adopting such a two-stage desorption configuration, the high desorption capability of the regeneration air (fresh regeneration air) can be utilized more effectively, and the desorption efficiency of the entire regeneration zone can be increased accordingly. In this respect, the intended purpose of achieving a high substance recovery efficiency η while achieving a high concentration ratio C can be achieved more effectively.

  In the ninth characteristic configuration, the purge side, the lower side region of the regeneration region, and the upper side region of the regeneration region are passed through the upper side purge region as the lower side purge region, the upper side purge region, and the regeneration region in this order. It can also be seen as a device configuration in which the used purge air is passed through the regeneration zone together with a part of the used regeneration air (circulation regeneration air) after passing through the regeneration zone as regeneration air.

  In the implementation of any one of the first to ninth feature configurations, the purge air to be passed through the purge zone is the outside air, the processing target air (processed air) that has been processed by separating and removing the removal target substance in the processing zone. Part or part of the processing target air sent to the processing area can be used alone or in the form of two or more kinds of mixed air, but the adsorption efficiency in the processing area is stably maintained high. In order to ensure the material recovery efficiency η of the apparatus as high as possible, it is advantageous to use part of the treated air that has passed through the treatment area or the outside air as purge air in the state of mixed air, not alone.

25 and 26 show the experimental results of the substance recovery efficiency η obtained by the adsorption / desorption type concentrator according to the present invention. FIG. 25 shows the entire regeneration zone in a state where the regeneration air and the circulation regeneration air are mixed. In the apparatus configuration (that is, the above-described eighth characteristic configuration), the rotation speed of the adsorption rotor is 3 rph and the concentration factor C is 40 times.
・ "Regeneration humidification": Humidification of regeneration air and circulation regeneration air by regeneration humidification means ・ "Purge humidification": For two items of humidification of purge air by purge humidification means,
A: No regeneration humidification, no purge humidification (equivalent to conventional device)
B: Regenerative humidification, no purge humidification ......... (Regenerative humidification only)
C: No regeneration humidification, purge humidification ......... (Purge humidification only)
D: Regenerative humidification, purge humidification ......... (Regeneration / purge humidification)
The four types of experiments
And in each of these four types of experimental cases,
・ “Purging with untreated air”: Use part of the processing target air (untreated air) to be supplied to the processing area as purge air ・ “Purge with outside air”: Use outside air as purge air ・ “Processed “Purge using air”: Use part of the processed air that has passed through the processing area (processed air) as purge air. • “Purge extraction”: Process part of the used purge air as extraction air. For the four sub-items that pass through the treatment area with the target air,
a: Untreated air purge, no purge bleed b: Outside air purge, no purge bleed c: Treated air purge, no purge bleed d: Untreated air purge, purge bleed e: Outside air purge, purge bleed Existence f: Indicates the substance recovery efficiency η obtained when the treated air use purge and purge bleed are present.

In FIG. 26, the regeneration air is passed through the lower side region and the upper side region in this order in that order, and a part of the used regeneration air that has passed through the upper side region is used as the circulation regeneration air. In the device configuration (that is, the ninth characteristic configuration described above) in which the circulating regeneration air is passed to the regeneration side upper side region together with the regeneration air that has passed the regeneration side lower side region, the rotation speed of the adsorption rotor is Under the condition of 3rph and concentration factor C 40 times,
・ Superior regeneration humidification: Humidification of the air passing through the upper side by the humidification means for regeneration ・ Lower regeneration humidification: Humidification of the air passing through the lower side by the humidification means for regeneration ・ Purge humidification: Humidification of the purge air by the humidification means for purging For each of the three items
E: No humidification on the upper side, no humidification on the lower side, no humidification on the purge ......... (equivalent to conventional equipment)
F: Upper side humidification, lower side humidification, no purge humidification ......... (upper side humidification only)
G: No upper-side humidification, lower-side humidification, no purge-humidification ……… (lower-side humidification only)
H: No upper-side humidification, no lower-side humidification, with purge humidification ......... (Purge humidification only)
I: Upper side humidification, lower side humidification, purge humidification ......... (All humidification)
The material recovery efficiency η obtained in each of the five types of experiments is shown.

  As can be seen from FIG. 26, when the ninth feature configuration is adopted, the above-described E.D. “Conventional device equivalent” and F.R. “Super humidification only” and G. “Lower side humidification only” When compared with “Purge humidification only”, the magnitude relationship of the substance recovery efficiency η is "Lower side humidification only"> H. “Purge humidification only”> F. “Super humidification only”> E. “Equivalent to conventional device”. “Lower side humidification only”, H.C. “Purge humidification only”, F.D. All of “Super humidification only” It can be seen that a higher material recovery efficiency η can be obtained than “equivalent to the conventional apparatus”.

  G. With “only lower-side humidification”, it is possible to obtain a larger substance recovery efficiency η than others, and this is considered because desorption of the substance to be removed by displacement adsorption contributes particularly effectively in the lower-side area of the regeneration area.

Device configuration diagram showing a first example of the first embodiment Device configuration diagram showing a second example of the first embodiment Device configuration diagram showing a third example of the first embodiment Device configuration diagram showing a first example of the second embodiment Device configuration diagram showing a second example of the second embodiment Device configuration diagram showing a third example of the second embodiment Device configuration diagram showing a first example of the third embodiment Device configuration diagram showing a second example of the third embodiment Device configuration diagram showing a third example of the third embodiment Device configuration diagram showing a first example of the fourth embodiment Device configuration diagram showing a second example of the fourth embodiment Device configuration diagram showing a third example of the fourth embodiment Device configuration diagram showing a first example of the fifth embodiment Device configuration diagram showing a second example of the fifth embodiment Device configuration diagram showing a third example of the fifth embodiment Device configuration diagram showing a first example of the sixth embodiment Device configuration diagram showing a second example of the sixth embodiment Device configuration diagram showing a third example of the sixth embodiment Device configuration diagram showing a first example of the seventh embodiment Device configuration diagram showing a second example of the seventh embodiment Device configuration diagram showing a third example of the seventh embodiment Device configuration diagram showing a fourth example of the seventh embodiment Device configuration diagram showing the eighth embodiment Graph showing the correlation between the concentration of substances to be removed at the regeneration zone outlet and the moisture concentration of the regeneration air Graph showing experimental results on material recovery efficiency Graph showing other experimental results on material removal efficiency Device configuration diagram of conventional device Device configuration diagram of other conventional devices Graph showing the correlation between concentration ratio and substance recovery efficiency in conventional equipment Device configuration diagram of a conventional device that uses a partial circulation system

  FIGS. 1 to 23 each show an embodiment of an adsorption / desorption type concentrating device according to the present invention. This concentrating device has a basic structure, as shown in each figure, a honeycomb holding an adsorbent X such as activated carbon or zeolite. A breathable adsorption rotor 1 such as a structure is provided.

  In each figure, for easy understanding, the suction rotor 1 is shown in a state of being developed in the rotor circumferential direction (rotor rotation direction).

  In the rotation area of the adsorption rotor 1, the processing area 2, the regeneration area 3, and the purge area 4 are partitioned and arranged in that order in the rotor rotation direction, and the rotation of the adsorption rotor 1 is caused by the rotation of the adsorption rotor 1. Each part in the direction (hereinafter referred to as the rotor part) is repeatedly passed through the processing area 2, the regeneration area 3 and the purge area 4 in that order.

  Basically, the following processing is performed in each of the processing area 2, the regeneration area 3, and the purge area 4.

In the processing area 2, by passing the processing target air IA through the rotor portion in the process of passing through the area,
A gaseous removal target substance V such as a volatile organic compound contained in the processing target air IA is adsorbed on the holding adsorbent X of the rotor part in the process of passing through the region and separated and removed from the processing target air IA. The processing target air IA is purified.

  In the regeneration zone 3, by passing the regeneration air RA heated by the regeneration heater 5 (an example of the regeneration heating means) through the rotor portion in the process of passing through the region, the retained adsorbent X in the rotor portion is subjected to the previous processing. The removal target substance V adsorbed in the zone 2 is desorbed to the regeneration air RA to regenerate the retained adsorbent X in the rotor portion that is passing through the zone.

  In the purge zone 4, the purge air PA is passed through the rotor portion that is passing through the zone to cool the rotor portion that is passing through the zone (that is, the rotor portion that has been heated through the regeneration zone 3). Then, the retained adsorbent X in the rotor portion is cooled prior to moving to the next processing area 2.

  In the purge area 4, together with the cooling of the adsorbent X, the remaining regeneration air RA brought into the purge area 4 while remaining in the rotor portion from the regeneration area 3 is scavenged by the purge air PA.

  Here, the air volume Qo of the regeneration air RA is smaller than the air volume Qi of the processing target air IA (Qo <Qi).

  That is, in this concentrator, the removal target substance V separated and removed from the processing target air IA by adsorption to the adsorbent X in the processing zone 2 is desorbed from the adsorbent X in the regeneration zone 3 and has a smaller air volume than the processing target air IA. By transferring to the regeneration air RA, the used regeneration air RA ′ having a small air volume that has passed through the regeneration zone 3 is taken out of the apparatus as concentrated air with the concentration of the substance V to be removed increased. The gaseous removal target substance V contained in the process target air IA in a low concentration state is collected in a concentrated state. The concentration factor C at this time is represented by C = Qi / Qo.

  In each figure, reference numeral 6 is a processing target air path for guiding the processing target air IA to the processing area 2, 7 is a purging air path for guiding the purge air PA to the purge area 4, and 8 is a used purge that has passed through the purging area 4. A used purge air passage for leading the regeneration air PA ′, and a regeneration air passage 9 for guiding the regeneration air RA to the regeneration zone 3.

  Reference numeral 11 denotes a processed air passage for extracting the processed air IA ′ (processed air) that has passed through the processing area 2 to the outside of the apparatus, and 12 denotes used regeneration air RA ′ that has passed through the regeneration area 3. This is a used regeneration air passage (in other words, a concentrated air delivery passage) that is taken out of the apparatus.

[First Embodiment]
1 to 3 show first to third examples of the first embodiment. In the concentrator of the first embodiment, the downstream end of the used purge air passage 8 is connected to the regeneration air passage 9. The total amount of the regeneration air RA to be passed through the regeneration zone 3 is configured such that the entire amount of the used purge air PA ′ is passed as the regeneration air RA to the regeneration zone 3 (ie, the total amount of the used purge air PA ′ is The total amount of the regeneration air RA).

  Further, the circulation regeneration air passage 12a is branched from the used regeneration air passage 12, and the downstream end of the circulation regeneration air passage 12a is connected to the regeneration air passage 9 together with the used purge air passage 8, As a result, a part of the used regeneration air RA ′ that has passed through the regeneration zone 3 is used as the circulation regeneration air RA ″ through the circulation regeneration air path 12a and the regeneration air path 9 and the regeneration air RA (fresh regeneration air). In the mixed state, the entire reproduction area 3 is allowed to pass.

The regeneration air passage 9 includes a regeneration heater 5 (an example of a regeneration heating unit) that heats the mixed air of the regeneration air RA and the circulation regeneration air RA ″ that is passed through the regeneration zone 3 to a predetermined temperature, A regenerating humidifier 10 (an example of a regenerating humidifying means) is provided for humidifying the mixed air RA, RA ″ heated by the regenerating heater 5 to an unsaturated predetermined humidity state.

  That is, in the concentrating device of the first embodiment, the mixed air of the regeneration air RA and the circulation regeneration air RA ″ that is passed through the regeneration zone 3 is humidified to an unsaturated predetermined humidity state by the regeneration humidifier 10. In the regeneration zone 3, the humidified water is substituted with the removal target substance V adsorbed by the adsorbent X in the previous treatment zone 2 and is adsorbed on the adsorbent X.

  Then, by this substitution adsorption, the removal target substance V that is in the adsorption state in the regeneration zone 3 is efficiently desorbed from the adsorbent X to the mixed air of the regeneration air RA and the circulation regeneration air RA ″, thereby high concentration. While setting the magnification C, a high substance recovery efficiency η for separating and removing the removal target substance V from the treatment target air IA by adsorption in the treatment area 2 is also secured.

  Among the concentrators of the first embodiment shown in FIGS. 1 to 3, the concentrator of the first example shown in FIG. 1 branches the purge air passage 7 from the processing target air passage 6 and is one of the processing target air IA. This part is configured to pass through the purge zone 4 as purge air PA.

  In the second example of the concentrating device shown in FIG. 2, the outside air is passed as purge air PA through the purge air passage 7 to the purge zone 4.

  In the concentrator of the third example shown in FIG. 3, the purge air passage 7 is branched from the treated air passage 11 and a part of the treated air IA ′ (treated air) is purged as the purge air PA. It is configured to pass through the area 4.

  In the concentrator of the first embodiment, the regeneration heater 5 and the regeneration humidifier 10 are downstream of the mixing position (merging position) of the regeneration air RA and the circulation regeneration air RA ″ as described above. In place of the above, the regeneration air passage 9 and / or the circulation regeneration air passage 12a may be disposed on the upstream side of the mixing position.

  That is, the locations where the regeneration heater 5 and the regeneration humidifier 10 are disposed heat the mixed air of the regeneration air RA and the circulation regeneration air RA "that is passed through the regeneration zone 3 to a predetermined temperature and humidify to a predetermined humidity. Any place that can be used.

[Second Embodiment]
4 to 6 show a first example to a third example of the second embodiment. In the concentrating device of the second embodiment, the spent purging air passage 8 to the extraction passage 8a in the concentrating device of the first embodiment. And the downstream end of the extraction passage 8a is connected to the processing target air passage 6.

  That is, in the concentrator of the second embodiment, a part of the used purge air PA ′ that has passed through the purge zone 4 is passed through the regeneration zone 3 as a whole amount of the regeneration air RA, and the purge zone The other part of the used purge air PA ′ that has passed through 4 is passed through the processing area 2 together with the processing target air IA as the extraction air PA ″.

  That is, a part of the used purge air PA ′ is passed through the processing area 2 together with the processing target air IA as the extraction air PA ′, so that the used purge air PA ′ is used as the regeneration air RA. In the configuration, the air volume Qo of the regeneration air RA is reduced in order to ensure a high concentration ratio C, but the air volume of the purge air PA to be passed through the purge zone 4 is sufficiently secured, thereby recovering the material of the apparatus. The efficiency η is further effectively increased.

  In the concentrator of the second embodiment, as indicated by a chain line in each figure, a cooler 17 that cools the extracted air PA ″ to be merged with the processing target air IA is additionally provided, whereby the processing target air IA is supplied. Regardless of the mixing of the bleed air PA ″ (part of the used purge air PA ′), the temperature of the treatment area 2 is maintained at a low temperature, so that the adsorption efficiency in the treatment area 2 and thus the material recovery efficiency η of the apparatus is increased. You may make it raise effectively and reliably.

  About others, it is the same as that of the concentration apparatus of 1st Embodiment.

  Further, in the concentrator of the second embodiment, as in the concentrator of the first embodiment, a part of the processing target air IA is purged as the purge air PA, as in the concentrator of the first example shown in FIG. A configuration for passing through the zone 4, a configuration for passing outside air as the purge air PA through the purge air passage 7 to the purge zone 4 as in the second example of the concentration device shown in FIG. 5, a third example of concentration shown in FIG. As in the apparatus, any configuration in which a part of the processed air IA ′ (processed air) that has been processed passes through the purge area 4 as the purge air PA may be adopted.

[Third Embodiment]
7 to 9 show first to third examples of the third embodiment. In the concentrating device of the third embodiment, the regenerating humidifier 10 is omitted in the concentrating device of the first embodiment, and this regeneration is performed. Instead of the humidifier 10 for purge, the purge air passage 7 is equipped with a purge humidifier 13 (an example of a purge humidifier) that humidifies the purge air PA that passes through the purge zone 4 to an unsaturated predetermined humidity state. It is configured.

  That is, in the concentrating device of the third embodiment, even if the desorption state is insufficient in the regeneration zone 3, the purge air PA to be passed to the next purge zone 4 is humidified by the purge humidifier 13 to some extent. By making an unsaturated humidified state having the above moisture concentration, the humidified water given to the purge air PA is replaced with the removal target substance V still remaining in the adsorbent X and adsorbed on the adsorbent X. The displacement adsorption is caused in the purge zone 4.

  Then, by the substitution adsorption in the purge area 4, the removal target substance V still remaining in the adsorbent X is efficiently desorbed from the adsorbent X, and the insufficient desorption state generated in the regeneration area 3 is obtained. This is eliminated in the purge zone 4, thereby ensuring a high substance recovery efficiency η while setting a high concentration ratio C.

  In the concentrator of the third embodiment, as indicated by a chain line in each drawing, a purge heater 14 (an example of a purge heating unit) that heats the purge air PA prior to humidification in the purge humidifier 13 is provided. Equipped in the purge air passage 7, thereby increasing the allowable humidification amount of the purge air PA in the purge humidifier 13 (that is, the amount of humidified water that can be held in the purge air PA), and the desorption is insufficient As a result, improvement of the substance recovery efficiency η may be achieved more effectively and reliably.

  About others, it is the same as that of the concentration apparatus of 1st Embodiment.

  Further, in the concentrator of the third embodiment, like the concentrator of the first and second embodiments, a part of the processing target air IA is purged air as in the concentrator of the first example shown in FIG. A configuration for passing through the purge zone 4 as PA, a configuration for allowing the outside air to pass through the purge air passage 7 as the purge air PA as in the second example of the concentrating device shown in FIG. 8, and a third configuration shown in FIG. As in the example concentrator, any configuration in which a part of the processed air IA ′ (processed air) that has been processed passes through the purge area 4 as the purge air PA may be employed.

[Fourth Embodiment]
10 to 12 show a first example to a third example of the fourth embodiment. In the concentrating device of the fourth embodiment, the used purge air passage 8 to the extraction passage 8a in the concentrating device of the third embodiment. And the downstream end of the extraction passage 8a is connected to the processing target air passage 6.

  That is, in the concentrator of the fourth embodiment, as in the concentrator of the second embodiment, a part of the used purge air PA ′ that has passed through the purge region 4 is transferred to the regeneration region 3 as the total amount of the regeneration air RA. In parallel with the passage, the other part of the used purge air PA ′ that has passed through the purge zone 4 is passed through the treatment zone 2 together with the processing target air IA as the extraction air PA ″.

  With this configuration, the air volume Qo of the regeneration air RA is reduced in order to ensure a high concentration ratio C, but the air volume of the purge air PA to be passed through the purge zone 4 is sufficiently secured, and the substance of the apparatus The collection efficiency η is effectively improved.

  Note that, in the concentrator of the fourth embodiment, as in the concentrator of the second embodiment, as shown by a chain line in each drawing, a cooler 17 for cooling the extracted air PA ″ to be merged with the processing target air IA is additionally provided. May be.

  Further, as in the case of the concentrating device of the third embodiment, a purge heater 14 (an example of a purge heating means) for heating the purge air PA prior to humidification in the purge humidifier 13 is shown as shown by a chain line in each figure. Additional equipment may be provided in the purge air passage 7.

  About others, it is the same as that of the concentration apparatus of 3rd Embodiment.

  Further, in the concentrator of the fourth embodiment, like the concentrator of the first to third embodiments, a part of the processing target air IA is purged air as in the first example of the concentrator shown in FIG. A configuration for passing through the purge zone 4 as PA, a configuration for allowing outside air to pass through the purge air passage 7 as the purge air PA as in the second example of the concentrating device shown in FIG. 11, and a third configuration shown in FIG. As in the example concentrator, any configuration in which a part of the processed air IA ′ (processed air) that has been processed passes through the purge area 4 as the purge air PA may be employed.

[Fifth Embodiment]
FIGS. 13 to 15 show a first example to a third example of the fifth embodiment. In the concentrating device of the fifth embodiment, the purging region 4 is added to the regenerating humidifier 10 in the concentrating device of the first embodiment. The purge air passage 7 is equipped with a purge humidifier 13 (an example of a purge humidifier) that humidifies the purge air PA to be passed through to an unsaturated predetermined humidity state.

  That is, the concentrating device having the fifth characteristic configuration is obtained by performing the device configuration shown in the first embodiment and the device configuration shown in the third embodiment side by side, and thereby the first to fourth embodiments. As in the case of the concentration apparatus, a high concentration ratio C is set, and the substance recovery efficiency η of the apparatus is ensured to be high.

  In the concentrator of the fifth embodiment, as in the concentrator of the third embodiment, the purge heater for heating the purge air PA prior to humidification in the purge humidifier 13 as indicated by a chain line in each drawing. 14 (an example of a heating means for purging) may be provided in the purging air passage 7.

  About others, it is the same as that of the concentration apparatus of 1st Embodiment.

Further, in the concentrator of the fifth embodiment, like the concentrator of the first to fourth embodiments, a part of the processing target air IA is purged air as in the first example of concentrator shown in FIG. A configuration for passing through the purge zone 4 as PA, a configuration for allowing the outside air to pass through the purge air passage 7 as the purge air PA as in the second example of the concentrating device shown in FIG. 14, and a third configuration shown in FIG. As in the example concentrator, any configuration in which a part of the processed air IA ′ (processed air) that has been processed passes through the purge area 4 as the purge air PA may be employed.

[Sixth Embodiment]
16 to 18 show a first example to a third example of the sixth embodiment. In the concentrating device of the sixth embodiment, the concentrating device of the second embodiment is the same as the concentrating device of the fifth embodiment. In the same manner as described above, a part of the used purge air PA ′ that has passed through the purge area 4 is passed through the extraction path 8 and the processing target air path 6 together with the processing target air IA to the processing area 2 as the extraction air PA ″. In order to secure the concentration factor C, the air volume Qo of the regeneration air RA is reduced, but the air volume of the purge air PA to be passed through the purge zone 4 is sufficiently secured to effectively improve the substance recovery efficiency η of the apparatus. It is trying to improve.

  In the concentrator of the sixth embodiment, as in the concentrators of the second and fourth embodiments, the cooler 17 that cools the bleed air PA ″ to be merged with the processing target air IA, as indicated by the chain line in each drawing. May be additionally equipped.

  About others, it is the same as that of the concentration apparatus of 5th Embodiment.

  Further, in the concentrator of the sixth embodiment, like the concentrator of the first to fifth embodiments, a part of the processing target air IA is purged air as in the first example of concentrator shown in FIG. A configuration for passing through the purge zone 4 as PA, a configuration for allowing the outside air to pass through the purge air passage 7 as the purge air PA as in the second example of the concentrating device shown in FIG. 17, and a fourth configuration shown in FIG. As in the example concentrator, any configuration in which a part of the processed air IA ′ (processed air) that has been processed passes through the purge area 4 as the purge air PA may be employed.

[Seventh Embodiment]
19 to 22 show a first example to a fourth example of the seventh embodiment. In the concentration device of the seventh embodiment, the upper side region 3A and the lower side of the regeneration region 3 located on the upper side of the rotor rotation direction are shown. It is partitioned into a lower side area 3B located on the side.

  Then, the regeneration air passage 9 for guiding the regeneration air RA is connected to the entrance of the lower side area 3B, and the used regeneration air path RA ′ that has passed through the regeneration area 3 is taken out of the apparatus. 12 is connected to the outlet of the upper side area 3A, and the outlet of the lower side area 3B and the inlet of the upper side area 3A are communicated with each other by a regeneration relay path 12b.

  Further, a circulation regeneration air passage 12a branched from the used regeneration air passage 12 is connected to the regeneration relay passage 12b.

  That is, in the concentrator of the seventh embodiment, the regeneration air RA (fresh regeneration air) guided by the regeneration air passage 9 is first passed to the lower side area 3B of the regeneration area 3, and subsequently, the lower side area is passed. The regeneration air RA that has passed 3B is passed through the regeneration relay path 12b to the upper side area 3A of the regeneration area 3, and a part of the used regeneration air RA 'that has passed the upper side area 3A is circulated and regenerated. As the regenerator air RA ", the recirculation air RA" is passed through the recirculation air path 12a and the regenerative relay path 12b to the upper area 3A of the regeneration area 3 together with the regeneration air RA after passing the lower area 3B. On the other hand, the other part of the used regeneration air RA ′ that has passed through the upper side area 3A is taken out as concentrated air to the outside of the apparatus through the used regeneration air passage 12.

In this configuration, among the concentrators of the seventh embodiment shown in FIGS. 19 to 22, in the concentrator of the first example shown in FIG. 19, the regeneration air RA that passes through the lower side region 3 </ b> B of the regeneration region 3 is heated. A regeneration heater 5B (an example of a heating means for regeneration) is provided in the regeneration air passage 9, and the regeneration air RA and the circulation regeneration air after passing through the lower side region 3B to be passed through the upper side region 3A of the regeneration region 3 are provided. A regeneration heater 5A (an example of a regeneration heating means) for heating the mixed air with R ″ is provided in the regeneration relay path 12b.

  In addition, the regeneration relay path 12b is supplied with mixed air of the regeneration air RA and the circulation regeneration air R ″ after passing the lower region 3B that is passed to the upper region 3A of the regeneration region 3 by the regeneration heater 5A. It is equipped with a regenerating humidifier 10A (an example of a regenerating humidifier) that humidifies to an unsaturated predetermined humidity state following heating, and the upper side area 3A in the regenerating area 3 by humidification by the regenerating humidifier 10A. Thus, substitution adsorption as described above is caused to increase the desorption efficiency of the entire regeneration zone 3.

  On the other hand, in the concentration device of the second example shown in FIG. 20, instead of the regeneration humidifying device 10A equipped in the regeneration relay path 12b, the regeneration air RA that passes through the lower side region 3B of the regeneration region 3 is regenerated heater 5B. A regenerating humidifier 10B (an example of a regenerating humidifier) that is humidified to an unsaturated predetermined humidity state following heating by the regenerator is equipped in the regenerating air passage 9, and is regenerated by humidification by the regenerating humidifier 10B. Substitution adsorption is caused in the lower side area 3B in the area 3 and the upper side area 3A through which the regeneration air RA passes, thereby improving the desorption efficiency of the entire regeneration area 3.

  Further, in the third example of the concentrating device shown in FIG. 21, instead of providing the regeneration relay path 12b and the regeneration air path 9 with the regeneration humidifiers 10A and 10B, the purge air PA to be passed through the purge zone 4 is provided. Is equipped with a purging humidifier 3 (an example of purging humidifier) in the purge area 4 by humidification by the purge humidifier 13. Thus, the removal target substance V still remaining in the adsorbent X in the purge region 4 in the adsorbed state is effectively desorbed from the adsorbent X.

  Furthermore, in the concentration device of the fourth example shown in FIG. 22, the regeneration humidifier 10A equipped in the regeneration relay path 12b, the regeneration humidifier 10B equipped in the regeneration air path 9, and the purge air path 7 are provided. All of the purge humidifiers 13 to be equipped are provided, so that replacement adsorption is reliably generated in each of the upper side area 3A and the lower side area 3B in the regeneration area 3, and the desorption efficiency as the entire regeneration area 3 is achieved. In addition, displacement adsorption is caused also in the purge zone 4, and the removal target substance V still remaining in the adsorbent X in the purge zone 4 in the adsorbed state is effectively desorbed from the adsorbent X.

  That is, also in the concentration apparatuses of the first to fourth examples of the seventh embodiment shown in FIGS. 19 to 22, high substance recovery efficiency can be achieved even under the setting of a high concentration ratio C by causing substitution adsorption as described above. η is obtained.

  In each of FIGS. 19 to 22, the air volume value (kg / h), temperature value (° C.), and absolute humidity value (g / kg ′) of each part in the operation of the concentration apparatus of the first to fourth examples are shown. An example is added.

The following example can be given about the occupation center angle of each region in the suction rotor 1.
Reproduction area 3 upper area 3A = 15 °
Reproduction area 3 lower side area 3B = 15 °
Purge area 4 = 30 °
Processing area 2 = 300 °

In the concentrator of the seventh embodiment, the purge region 4, the lower region 3B of the regeneration region 3, and the upper region 3A of the regeneration region 3 are used as the lower purge region, the upper purge region, and the regeneration region in this order. The used purge air (PA ′) that has passed through the upper purge zone (3B) is used as regeneration air (RA), and part of the used regeneration air (RA ′) that has passed through the regeneration zone (3) ( It can also be seen as a device configuration that passes through the regeneration zone (3) together with the circulating regeneration air RA ").

  In the concentrator of the fourth example shown in FIG. 22, a purge heater 14 (an example of a purge heating means) that heats the purge air PA prior to humidification in the purge humidifier 13 as indicated by a chain line in the figure. The purge air passage 7 may be provided so that the allowable humidification amount of the purge air PA in the purge humidifier 13 may be increased.

  In the concentration apparatus of the seventh embodiment shown in FIGS. 19 to 22, a part of the treated air IA ′ (treated air) that has passed through the treatment area 2 is diverted from the treated air passage 11, In parallel with passing a part of the air as the regeneration air RA through the regeneration air passage 9 to the lower side region 3B of the regeneration region 3, the other part of the divided air is used as the purge air PA for the purge air passage 7 In some cases, in the concentrator of the seventh embodiment shown in FIGS. 19 to 22, a part of the processing target air IA and the outside air are used as the purge air PA in the purge area. 4 may be adopted.

  Further, in the concentrator of the seventh embodiment shown in FIGS. 19 to 22, the entire amount of the used purge air P ′ that has passed through the purge zone 4 is passed through the process zone 2 together with the processing target air IA. In some cases, in the concentrating device of the seventh embodiment shown in FIGS. 19 to 22, the lower side region of the regeneration region 3 is the entire amount of the used purge air PA ′ that has passed through the purge region 4 as the regeneration air RA. The purge zone 4 is used in combination with a configuration in which the purge air 4 'is passed through the purge zone 4 and a part of the used purge air PA' that has passed through the purge zone 4 is passed through the lower zone 3B of the regeneration zone 3 as the regeneration air RA. For example, a configuration may be adopted in which the other part of the used purge air PA ′ that has passed through is passed through the processing area 2 together with the processing target air IA.

[Eighth Embodiment]
FIG. 23 shows an eighth embodiment. In the concentrator of the eighth embodiment, as an improvement of the concentrator shown in FIG. 5, a heat pump 15 is provided, and the heat absorption action of the heat pump 15 causes the purge air PA and the object to be processed. An air cooler 16 that cools the air IA is provided, and a regeneration heater 5 (an example of a regeneration heating unit) is configured to heat the regeneration air RA by the heat radiation action of the heat pump 15.

  Here, the air cooler 16 is either a direct expansion type cooler functioning as an evaporator of the heat pump 15 or a heat medium circulation heat exchanger that circulates a heat-absorbing heat medium with the evaporator of the heat pump 15. It's okay.

  Further, the regeneration heater 5 may be either a heat radiator that functions as a condenser of the heat pump 15 or a heat medium circulation heat exchanger that circulates a heat radiation heat medium between the heat pump 15 and the condenser of the heat pump 15.

  Further, in this example, both the purge air PA and the processing target air IA are cooled by the heat absorption action of the heat pump 15, but only one of the purge air PA and the processing target air IA is absorbed by the heat pump 15. You may make it cool by an effect | action.

  Such a configuration for cooling and heating the air using the heat pump 15 is not limited to the concentrating device shown in FIG. 5 but can be applied to the concentrating devices shown in other drawings. For example, in the concentrating device shown in FIG. The cooler 17 provided in the extraction passage 8a is made to cool the extraction air PA "by the heat absorption action of the heat pump 15, and the regeneration heater 5 and the purge air PA for heating the regeneration air RA are heated. The purge heater 14 may be configured to heat the regeneration air RA and the purge air PA by the heat radiation action of the heat pump 15.

[Another embodiment]
Next, another embodiment of the adsorption / desorption type concentrating device according to the present invention will be listed.

  In each of the above-described embodiments, an example has been shown in which the used purge air PA ′ that has passed through the purge zone 4 or the treated air IA ′ that has been passed through the treatment zone 2 is used as the regeneration air RA. The regeneration air RA is not limited to this, and the used purge air PA ′, the treated air IA ′ (treated air), the outside air, and other air may be used alone or in a mixed state of two or more. Can be used.

  Although it is desirable that the temperature of the regeneration air RA passed through the regeneration zone 3 is as low as possible within a range where the required substance recovery efficiency η can be obtained, the regeneration air passed through the regeneration zone 3 in the adsorption / desorption type concentrator according to the present invention. The temperature of RA may be less than 100 ° C.

  In each of the above-described embodiments, an example in which the ventilation direction of the regeneration air RA with respect to the adsorption rotor 1 in the regeneration zone 3 and the ventilation direction of the processing target air IA with respect to the adsorption rotor 1 in the treatment zone 2 are reversed is shown. However, in some cases, the ventilation direction of the regeneration air RA with respect to the adsorption rotor 1 in the regeneration zone 3 and the ventilation direction of the processing target air IA with respect to the adsorption rotor 1 in the treatment zone 2 may be the same.

  In addition, the direction of ventilation of the purge air PA with respect to the adsorption rotor 1 in the purge area 4 may be the same as or opposite to the direction of ventilation of the regeneration air RA with respect to the adsorption rotor 1 in the regeneration area 3. What is necessary is just to select a preferable direction according to a case, such as making it the same direction as the ventilation direction of the process target air IA with respect to the adsorption | suction rotor 1, or a reverse direction.

  As the humidifying means for regeneration 10, 10A, 10B and the humidifying means 13 for purge, various types of humidifiers such as a water heating type, a vaporization type, a water spray type, and an ultrasonic type can be adopted. It is preferable to use a vaporizing, water spraying, or ultrasonic humidifier that does not require a heating source.

  The adsorption / desorption concentration apparatus according to the present invention can be desorbed from the adsorbent X by substitution adsorption of moisture in the regeneration zone 3 and the purge zone 4, and is substituted and adsorbed to the adsorbent X in the moisture adsorption state in the treatment zone 2. As long as the gaseous substance can be removed, various gaseous substances such as volatile organic compounds and malodorous substances can be used as the removal target substance V.

  The processing target air IA may be any air including air exhausted from various facilities and apparatuses as long as it includes the gaseous removal target substance V as described above.

X Adsorbent 1 Adsorption rotor 2 Processing area 3 Regeneration area 4 Purge area IA Process target air V Material to be removed RA Regeneration air PA Purge air RA 'Used regeneration air RA "Circulation regeneration air 5, 5A, 5B Regeneration heating means 10, 10A, 10B Regeneration humidification means 13 Purge humidification means 14 Purge heating means PA 'Used purge air PA "Extracted air 3A Upper side area 3B Lower side area

Claims (9)

While equipped with a breathable adsorption rotor holding the adsorbent,
A process area, a regeneration area, and a purge area are formed in the rotation area of the adsorption rotor in a state of being arranged in the rotor rotation direction in that order,
From the rotation of the suction rotor, each part in the rotation direction of the suction rotor is configured to repeatedly pass through the processing area, the regeneration area, and the purge area in that order,
In the treatment area, by passing the air to be treated through the rotor portion in the process of passing through the region, the gaseous removal target substance contained in the air to be treated is adsorbed to the holding adsorbent of the rotor part in the process of passing through the region. To separate and remove from the target air
In the regeneration zone, the air for regeneration is passed through the rotor portion that is in the process of passing through the zone, so that the removal target substance adsorbed in the processing zone by the retained adsorbent of the rotor portion is used for regeneration with a smaller air volume than the processing target air. Desorb to air, regenerate the retained adsorbent of the rotor part in the process of passing through the region,
In the purge region, an adsorption / desorption type concentrator configured to cool the retained adsorbent of the rotor part in the region passing process by passing the purge air to the rotor part in the region passing process,
A part of the used regeneration air that has passed through the regeneration area is passed through the regeneration area together with the regeneration air as circulation regeneration air,
While heating the regeneration air or the circulation regeneration air by the regeneration heating means, and humidifying to the unsaturated humidified state by the regeneration humidification means ,
In the regeneration zone, in the holding adsorbent of the rotor part in which the moisture in the unsaturated humidified state that has been humidified by the regeneration humidifying means and passes through the zone or the water contained in the circulation regeneration air is in the zone passage process. By substituting with the adsorbed material to be removed and adsorbed by the retained adsorbent, the adsorbed material to be removed from the retained adsorbent in the rotor part in the process of passing through the region is desorbed to the regeneration air with the small air volume. Let
In the treatment area, the gaseous removal target substance contained in the air to be treated that passes through the area is adsorbed by the retained adsorbent by substituting the moisture in the adsorption state in the retained adsorbent of the rotor part that is passing through the area. An adsorption / desorption type concentrating device configured to adsorb a gaseous removal target substance contained in the processing target air to the retained adsorbent of the rotor part in the region and separate and remove it from the processing target air by displacement adsorption . While equipped with a breathable adsorption rotor holding the adsorbent,
A process area, a regeneration area, and a purge area are formed in the rotation area of the adsorption rotor in a state of being arranged in the rotor rotation direction in that order,
From the rotation of the suction rotor, each part in the rotation direction of the suction rotor is configured to repeatedly pass through the processing area, the regeneration area, and the purge area in that order,
In the treatment area, by passing the air to be treated through the rotor portion in the process of passing through the region, the gaseous removal target substance contained in the air to be treated is adsorbed to the holding adsorbent of the rotor part in the process of passing through the region. To separate and remove from the target air
In the regeneration zone, the air for regeneration is passed through the rotor portion that is in the process of passing through the zone, so that the removal target substance adsorbed in the processing zone by the retained adsorbent of the rotor portion is used for regeneration with a smaller air volume than the processing target air. Desorb to air, regenerate the retained adsorbent of the rotor part in the process of passing through the region,
In the purge region, an adsorption / desorption type concentrator configured to cool the retained adsorbent of the rotor part in the region passing process by passing the purge air to the rotor part in the region passing process,
A portion of the used regeneration air that has passed through the regeneration area is configured to pass through the regeneration area together with the regeneration air as circulation regeneration air ,
The regeneration air or the circulation regeneration air is heated by a regeneration heating means,
By humidifying the purge air to be passed through the purge zone into an unsaturated humidified state by the purge humidifying means ,
In the purge zone, the moisture contained in the unsaturated humidified purge air that is humidified by the purge humidifying means and passes through the zone is the residual removal target substance in the adsorption state in the retained adsorbent of the rotor part in the zone passing process. By substituting and being adsorbed by the retained adsorbent, the residual removal target substance in the adsorbed state in the retained adsorbent of the rotor part that is passing through the region is desorbed to the purge air,
In the treatment area, the gaseous removal target substance contained in the air to be treated that passes through the area is adsorbed by the retained adsorbent by substituting the moisture in the adsorption state in the retained adsorbent of the rotor part that is passing through the area. An adsorption / desorption type concentrating device configured to adsorb a gaseous removal target substance contained in the processing target air to the retained adsorbent of the rotor part in the region and separate and remove it from the processing target air by displacement adsorption .   The adsorption / desorption type concentrator according to claim 2, wherein the purge air is heated by the purge heating means before being humidified by the purge humidification means.   The adsorption / desorption type concentrating device according to any one of claims 1 to 3, wherein used purge air that has passed through the purge zone is passed through the regeneration zone as the regeneration air.   The adsorption / desorption type concentrating device according to claim 4, wherein the entire amount of the regeneration air is configured to use spent purge air that has passed through the purge zone. In parallel with passing a part of the used purge air that has passed through the purge zone to the regeneration zone as the regeneration air,
The adsorption / desorption type concentrating device according to claim 4 or 5, wherein the other part of the used purge air that has passed through the purge zone is passed through the treatment zone together with the processing target air as extracted air.   The adsorption / desorption type concentrating device according to claim 4 or 5, wherein the entire amount of used purge air that has passed through the purge zone is passed through the regeneration zone as the regeneration air.   The adsorption / desorption type concentrating device according to any one of claims 1 to 7, wherein the regeneration air and the circulation regeneration air are mixed and passed through the entire regeneration zone. The regeneration area is divided into a lower side area located on the lower side and an upper side area located on the upper side in the suction rotor rotation direction,
Passing the regeneration air through the lower side region and the upper side region in that order, and a part of the used regeneration air that has passed through the upper side region as the circulation regeneration air,
The adsorption / desorption type concentrator according to any one of claims 1 to 7, wherein the circulation regeneration air is configured to pass through the upper side region together with the regeneration air that has passed through the lower side region.

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