JP2021154271A - Adsorbent regenerator and adsorbent cooling method - Google Patents

Abstract

To provide an adsorbent regenerator and an adsorbent cooling method capable of suppressing the deterioration of an adsorbent due to thermal shock as much as possible.SOLUTION: There is provided an adsorbent regenerator 100 which comprises a container 110, a spray nozzle 311 and a first liquid supply pipe 310. The spray nozzle is disposed in the container. The first liquid supply pipe is connected to the spray nozzle. Further, it is suitable that the adsorbent regenerator 100 further comprises a second liquid supply pipe 320. The second liquid supply pipe is inserted into the container and supplies a liquid into the container after a plurality of through holes OP4 are formed on the sidewall.SELECTED DRAWING: Figure 4

Description

The present invention relates to an adsorbent regenerator and an adsorbent cooling method.

In the past, "a regenerating device for separating the substance from the adsorbent adsorbing the substance and regenerating the adsorption capacity of the adsorbent, and the first reservoir storing the adsorbent, and A hot air introducing means for introducing hot air into the first container, a steam introducing means for introducing steam into the first container, and a second container into which the gas in the first container is introduced. And a regenerator characterized by including a catalyst stored in the second reservoir "(see, for example, Japanese Patent Application Laid-Open No. 2016-22403).

Japanese Unexamined Patent Publication No. 2016-22403

By the way, in order to regenerate the adsorbent having a deteriorated purification function, the adsorbent may be heat-treated by superheated steam or the like. If the adsorbent after the heat treatment is left as it is at a high temperature, the adsorbent may be damaged or deteriorated by heat. Therefore, it is preferable that the adsorbent after the heat treatment is cooled as quickly as possible, but if the adsorbent is rapidly cooled, the adsorbent tends to deteriorate due to thermal shock.

An object of the present invention is to provide an adsorbent regenerator and an adsorbent cooling method capable of suppressing deterioration of the adsorbent due to thermal shock as much as possible.

The adsorbent regenerator according to the first aspect of the present invention includes a container, a spray nozzle, and a first liquid supply pipe. The container is filled with an adsorbent having a high temperature (for example, activated carbon, zeolite, ion exchange resin, etc.). The spray nozzle is arranged in the container. The first liquid supply pipe is connected to the spray nozzle.

Therefore, this adsorbent regenerator can generate mist from the liquid passing through the first liquid supply pipe by the spray nozzle and supply the mist into the container. Therefore, in this adsorbent regenerator, the adsorbent in the container can be slowly cooled by the mist. Therefore, in this adsorbent regenerator, deterioration of the adsorbent due to thermal shock can be suppressed as much as possible.

The adsorbent regenerator according to the second aspect of the present invention is the adsorbent regenerator according to the first aspect, and further includes a second liquid supply pipe. The second liquid supply pipe is inserted into the container, and a plurality of through holes are formed on the side wall to supply the liquid into the container.

Therefore, in this adsorbent regenerator, after the mist is supplied into the container through the spray nozzle, the liquid (for example, water) passing through the second liquid supply pipe can be efficiently supplied into the container. Therefore, in this adsorbent regenerator, after the adsorbent is cooled to a temperature at which the adsorbent is not subjected to thermal shock by the mist, the cooling rate of the adsorbent can be increased by the liquid. Therefore, this adsorbent regenerator can shorten the cooling time of the adsorbent as compared with the case where the adsorbent is cooled only by the mist.

The adsorbent regenerator according to the third aspect of the present invention is the adsorbent regenerator according to the second aspect, and the plurality of through holes are formed so as to be arranged in the circumferential direction in the second liquid supply pipe.

Therefore, in this adsorbent regenerator, the liquid passing through the second liquid supply pipe can be diffused throughout the container. Therefore, in this adsorbent regenerator, the adsorbent in the container can be cooled as uniformly as possible.

The adsorbent regenerator according to the fourth aspect of the present invention is the adsorbent regenerator according to the second or third aspect, and further includes a protective net. The protective net covers the first liquid supply pipe and the second liquid supply pipe.

Therefore, in this adsorbent regenerator, it is possible to prevent the adsorbent from being clogged at the outlet of the spray nozzle and the through port of the second liquid supply pipe as much as possible.

The adsorbent regenerator according to the fifth aspect of the present invention is an adsorbent regenerator according to any one of the first to fourth aspects, and further includes a gas supply pipe. The gas supply pipe is inserted into the container and supplies gas into the container.

Therefore, in this adsorbent regenerator, convection can be caused in the container by the gas, and the mist generated by the spray nozzle and the liquid passing through the second liquid supply pipe can be diffused throughout the container. Therefore, in this adsorbent regenerator, the adsorbent can be cooled as uniformly as possible. Here, the gas is preferably air. The temperature of the gas may be room temperature. This is because room temperature is usually lower than the temperature of the adsorbent after the heat treatment, so air at room temperature is sufficient to cool the adsorbent. In such a case, it is not necessary to heat or cool the gas, which saves energy.

The adsorbent cooling method according to the sixth aspect of the present invention includes a spraying step. In the spraying step, mist is supplied into the container through the spray nozzle in the adsorbent regenerator having the container, the spray nozzle arranged in the container, and the first liquid supply pipe connected to the spray nozzle. The container is filled with an adsorbent having a high temperature (for example, activated carbon, zeolite, ion exchange resin, etc.).

Therefore, in this adsorbent cooling method, the adsorbent in the container can be slowly cooled by the mist. Therefore, in this adsorbent cooling method, deterioration of the adsorbent due to thermal shock can be suppressed as much as possible.

The adsorbent cooling method according to the seventh aspect of the present invention is the adsorbent cooling method according to the sixth aspect, and the adsorbent regenerator further includes a gas supply pipe. The gas supply pipe is inserted into the container and supplies gas into the container. Further, this adsorbent cooling method further includes a mist gas supply step. In the mist gas supply process, the mist is supplied into the container through the spray nozzle, and the gas is supplied into the container through the gas supply pipe.

Therefore, in this adsorbent cooling method, in the mist gas supply step, convection can be caused in the container by the gas, and the mist generated by the spray nozzle can be diffused throughout the container. Therefore, in this adsorbent cooling method, the adsorbent can be cooled as uniformly as possible. Here, the gas is preferably air. The temperature of the gas may be room temperature. This is because room temperature is usually lower than the temperature of the adsorbent after the heat treatment, so air at room temperature is sufficient to cool the adsorbent. In such a case, it is not necessary to heat or cool the gas, which saves energy.

The adsorbent cooling method according to the eighth aspect of the present invention is the adsorbent cooling method according to the sixth or seventh aspect, and the adsorbent regenerator further includes a second liquid supply pipe. The second liquid supply pipe is inserted through the container. Further, the second liquid supply pipe has a plurality of through holes formed on the side wall, and supplies the liquid into the container. Further, this adsorbent cooling method further includes a fluid supply step. In the fluid supply step, the liquid passing through the second liquid supply pipe is supplied into the container.

As described above, in this adsorbent cooling method, a liquid (for example, water) passing through the second liquid supply pipe is supplied into the container in the fluid supply step. Therefore, in this adsorbent cooling method, after the adsorbent is cooled to a temperature at which the adsorbent is not subjected to thermal shock by the mist, the cooling rate of the adsorbent can be increased by the liquid. Therefore, by using this adsorbent cooling method, the cooling time of the adsorbent can be shortened as compared with the case of cooling only with mist.

The adsorbent cooling method according to the ninth aspect of the present invention is the adsorbent cooling method according to the eighth aspect, the mist gas supply step is carried out after the spraying step, and the fluid supply step is the mist gas supply step. Will be carried out after.

Therefore, in this adsorbent cooling method, after the adsorbent is uniformly cooled to a temperature that does not receive thermal shock by the mist, the cooling rate of the adsorbent can be increased by at least one of the liquid and the gas. Therefore, by using this adsorbent cooling method, the cooling time of the adsorbent can be shortened as compared with the case of cooling only with mist.

It is a front view of the adsorbent tank which concerns on embodiment of this invention. FIG. 1 is a cross-sectional view taken along the line AA of FIG. In this figure, the components shown in FIG. 4 are omitted. It is a figure which shows the timing of supply of heated air in the mixed gas supply process which concerns on embodiment of this invention. It is a side transmission view of the adsorbent cooling pipe which constitutes the adsorbent tank which concerns on embodiment of this invention. It is a side view of the air supply pipe and superheated steam supply pipe which concerns on modification (D). It is a side view of the adsorbent tank which concerns on the modification (G). In this figure, the components shown in FIG. 4 are omitted.

As shown in FIGS. 1 and 2, the adsorbent tank 100 according to the embodiment of the present invention mainly includes a container body 110, an air supply pipe 120, a superheated steam supply pipe 130, a recovery pipe 140, a leg LG, and the like. It is composed of an adsorbent cooling tube 300. Hereinafter, these components will be described in detail, and then the fluid purification treatment, the adsorbent regeneration treatment, and the adsorbent cooling treatment using the adsorbent tank 100 will be described in detail.

(1) Container body The container body 110 is a member for filling an adsorbent such as activated carbon, and as shown in FIGS. 1 and 2, mainly the body portion 111, the lid portion 112, and the upper vertical flange. It is formed from a pipe 113, a lower vertical flange pipe 114 and a horizontal flange pipe 115. Although not shown, a temperature sensor for measuring the temperature of the internal space of the container body 110 and the surface temperature of the adsorbent is provided in the internal space of the container body 110. The temperature sensor may be arranged at only one place or at two or more places.

As shown in FIGS. 1 and 2, the body portion 111 is a bottomed cylindrical wall portion made of a metal such as a stainless alloy, and is formed of a cylindrical wall portion 111A and a circular wall portion 111B. As shown in FIGS. 1 and 2, an upper vertical flange tube 113 is joined to the central portion of the upper wall portion of the cylindrical wall portion 111A, and a lower vertical flange is connected to the central portion of the lower wall portion of the cylindrical wall portion 111A. The tubes 114 are joined. Further, as shown in FIGS. 1 and 2, two air supply pipes 120 are penetrated into the intermediate portion of the circular wall portion 111B, and two superheated steam supply pipes 130 are inserted below the circular wall portion 111B. It has been penetrated.

As shown in FIGS. 1 and 2, the lid portion 112 is a disk-shaped wall portion made of a metal such as a stainless alloy, and covers the opposite side of the circular wall portion 111B. As shown in FIG. 2, two recovery pipes 140 are penetrated into the upper part of the lid portion 112, and a horizontal flange pipe 115 is penetrated into the lower part of the lid portion 112.

As described above, the upper vertical flange pipe 113 is joined to the central portion of the upper wall portion of the cylindrical wall portion 111A. The internal passage of the upper vertical flange pipe 113 communicates with the internal space of the container body 110. The upper vertical flange tube 113 is normally sealed, but is opened when the adsorbent is supplied, and is used as an adsorbent supply port.

As described above, the lower vertical flange tube 114 is joined to the central portion of the lower wall portion of the cylindrical wall portion 111A. The internal passage of the lower vertical flange pipe 114 communicates with the internal space of the container body 110. Further, the lower vertical flange pipe 114 is connected to the pipe P8 in which the on-off valve V4 is arranged. The pipe P8 is used as a supply port for a fluid to be treated such as water to be purified. The on-off valve V4 is normally closed, but is opened when the fluid to be treated is sprayed on the adsorbent. Then, when the on-off valve V4 is in the open state, the fluid to be processed that has passed through the pipe P8 is supplied to the internal space of the container body 110 through the lower vertical flange pipe 114.

As described above, the horizontal flange pipe 115 is joined to the lower part of the lid portion 112. The internal passage of the horizontal flange pipe 115 communicates with the internal space of the container body 110. Although the horizontal flange pipe 115 is normally sealed, it is opened when some trouble occurs and is used as an outlet for the adsorbent.

(2) Air supply pipe The air supply pipe 120 is for supplying air to the internal space of the container main body 110. As described above, the two air supply pipes 120 are penetrated into the intermediate portion of the circular wall portion 111B. As shown in FIG. 2, the air supply pipe 120 extends in the front-rear direction to the vicinity of the lid portion 112. Then, as shown in FIG. 2, a plurality of first supply ports OP1 are formed at equal intervals on the upper portion, the lower portion, the left portion, and the right portion of the side wall portion of the air supply pipe 120. That is, when the air passes through the air supply pipe 120, it is supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. Further, the air supply pipe 120 is connected to the air heating heater H1 via the pipe P1. The air heating heater H1 is connected to an air compressor (or a blower or the like) AC via a pipe P3 in which an on-off valve V1 is provided. The pipe P3 is also connected to the pipe P4 in which the on-off valve V2 is arranged. With such a configuration, when the on-off valve V1 is in the open state and the on-off valve V2 is in the closed state, the air from the air compressor AC is heated by the air heating heater H1 and heated air (for example, from room temperature or higher to about 350). The temperature is within the range of ° C. or lower), and heated air is supplied to the air supply pipe 120 via the pipe P1. Although the adsorbent is brought closer to a dry state in the air supply step described later, when the air supply step is performed under high temperature conditions (for example, in summer), the air from the air compressor AC is aired. The air may be supplied to the air supply pipe 120 via the pipe P1 without being heated by the heating heater H1.

(3) Superheated steam supply pipe The superheated steam supply pipe 130 is for supplying superheated steam to the internal space of the container main body 110. As described above, the two superheated steam supply pipes 130 are penetrated into the lower part of the circular wall portion 111B. As shown in FIG. 2, the superheated steam supply pipe 130 extends in the front-rear direction to the vicinity of the lid portion 112. Then, as shown in FIG. 2, a plurality of second supply ports OP2 are formed at equal intervals on the upper portion of the side wall portion of the superheated steam supply pipe 130. That is, when the superheated steam passes through the superheated steam supply pipe 130, it is supplied to the internal space of the container main body 110 through the outlet of the superheated steam supply pipe 130 and the second supply port OP2. Further, the superheated steam supply pipe 130 is connected to the steam heating heater H2 via the pipe P2. The steam heating heater H2 is connected to the boiler B via the pipe P4 and the pipe P5. With such a configuration, when the on-off valve V2 is in the closed state, the steam from the boiler B is heated by the steam heating heater H2 to become superheated steam (for example, within the range of about 250 ° C. or higher and about 550 ° C. or lower), and the piping Superheated steam is supplied to the superheated steam supply pipe 130 via P2.

The air heating heater H1, the steam heating heater H2, the air compressor AC, and the boiler B are connected to the control panel C. The control panel C controls these operations (for example, power on / off, output, etc.) and displays the temperature of the temperature sensor described above.

(4) Recovery pipe The recovery pipe 140 is for recovering air, superheated steam, purified fluid to be treated, and the like. As described above, the two collection tubes 140 are penetrated into the upper part of the lid portion 112. As shown in FIG. 2, the recovery pipe 140 extends in the front-rear direction to the vicinity of the circular wall portion 111B. Then, as shown in FIG. 2, a plurality of collection ports OP3 are formed at equal intervals over the entire circumference in the front portion of the side wall portion of the recovery pipe 140. Here, air, superheated steam, and the purified fluid to be treated flow into the recovery pipe 140 through the recovery port OP3 and then pass through the recovery pipe 140. Then, the air and superheated steam that have passed through the recovery pipe 140 are recovered or discharged through the pipe P6. The fluid to be processed that has passed through the recovery pipe 140 is recovered or used through the pipe P7 when the on-off valve V3 arranged in the pipe P7 is in the open state.

(5) Leg The leg LG is for supporting the container body 110. As shown in FIGS. 1 and 2, the leg LG extends in the downward oblique direction from the right front portion, the right rear portion, the left front portion, and the left rear portion in the lower part of the cylindrical wall portion 111A, respectively.

(6) Adsorbent cooling pipe The adsorbent cooling pipe 300 is for cooling the adsorbent after the mixed gas supply step of the adsorbent regeneration treatment is carried out, and has a circular wall as shown in FIG. It is penetrated into the portion of the portion 111B between the portion where the air supply pipe 120 is penetrated and the portion where the superheated steam supply pipe 130 is penetrated. Then, as shown in FIG. 4, the adsorbent cooling pipe 300 is composed of a mist source water supply pipe 310, a cooling liquid supply pipe 320, and a protective net pipe 330. Hereinafter, these components will be described in detail.

The mist source water supply pipe 310 is for guiding the mist source water to the spray nozzle 311 of the container body 110, and is arranged in the internal space of the container body 110 and the internal space of the protective net tube 330 as shown in FIG. It is installed. As shown in FIG. 4, the spray nozzle 311 is connected to the upper part, the lower part, the left part and the right part of the side wall portion of the mist source water supply pipe 310. The spray nozzle 311 generates mist from a liquid (for example, a fluid to be treated, well water, industrial water, tap water, etc.) that has passed through the mist source water supply pipe 310, and enters the internal space of the container body 110. Supply. The size of this mist is preferably in the range of 10 microns or more and less than 199 microns, and more preferably in the range of 40 microns or more and 60 microns or less. Further, as shown in FIG. 4, the mist source water supply pipe 310 is connected to the pump PO1 via a pipe P11 in which the on-off valve V11 is arranged. The pump PO1 is connected to the liquid tank T via the pipe P12. With such a configuration, when the on-off valve V11 is in the open state, the liquid stored in the liquid tank T is supplied to the mist source water supply pipe 310 by the pump PO1. Although not shown, the pump PO1 is connected to the control panel C.

The cooling liquid supply pipe 320 is for guiding a liquid (for example, a fluid to be treated, well water, industrial water, tap water, etc., which has been subjected to fluid purification treatment) to the internal space of the container body 110, and is shown in FIG. As shown, it is arranged in the internal space of the container main body 110 and the internal space of the protective net tube 330. As shown in FIG. 4, a plurality of third supply ports OP4 are formed at equal intervals on the upper portion, the lower portion, the left portion, and the right portion of the side wall portion of the cooling liquid supply pipe 320. That is, the liquid passing through the cooling liquid supply pipe 320 is guided to the internal space of the container main body 110 through the outlet of the cooling liquid supply pipe 320 and the third supply port OP4. Further, the cooling liquid supply pipe 320 is connected to the pump PO2 via a pipe P13 in which the on-off valve V12 is arranged. The pump PO2 is connected to the liquid tank T via the pipe P14. With such a configuration, when the on-off valve V12 is in the open state, the liquid stored in the liquid tank T is supplied to the cooling liquid supply pipe 320 by the pump PO2. Although not shown, the pump PO2 is connected to the control panel C.

The protective net pipe 330 is a net-like pipe, and as shown in FIG. 4, covers the mist source water supply pipe 310 and the cooling liquid supply pipe 320. The size of the mesh (not shown) of the protective net tube 330 is designed to be smaller than the average size of the adsorbent.

<Fluid purification treatment>
When a fluid to be treated such as water that has passed through the pipe P8 is supplied to the internal space of the container body 110 through the lower vertical flange pipe 114, the fluid to be treated is an adsorbent such as activated charcoal filled in the container body 110. It is supplied to the internal space of the container body 110 while contacting the container body 110. At this time, the adsorbent captures the organic solvent, suspended matter, etc. contained in water or the like and purifies the fluid to be treated. Then, when the fluid to be treated reaches the recovery pipe 140, the fluid to be treated is in a sufficiently purified state. Then, the purified fluid to be treated flows into the recovery pipe 140 through the recovery port OP3 and then passes through the recovery pipe 140. After that, the fluid to be treated is recovered or used through the pipe P7 when the on-off valve V3 is in the open state.

<Adsorbent regeneration treatment>
If the above-mentioned fluid purification treatment is continued for a while, the purification function of the adsorbent deteriorates. Therefore, the following adsorbent regeneration treatment is performed. In the adsorbent regeneration process, an air supply step and a mixed gas supply step are mainly performed.

(1) Air supply step First, air from the air compressor AC is sent to the air heating heater H1 via the pipe P3. In this air supply step, the on-off valve V1 is in the open state and the on-off valve V2 is in the closed state. Next, the sent air is heated by the air heating heater H1 to become heated air. Next, the heated air is supplied to the air supply pipe 120 via the pipe P1, passes through the air supply pipe 120, and is supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. NS. As described above, under high temperature conditions, the air from the air compressor AC may be supplied to the air supply pipe 120 via the pipe P1 without being heated by the air heating heater H1. In this case as well, the air passes through the air supply pipe 120 and is supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. Since the adsorbent after the above-mentioned fluid purification treatment contains water, this air supply step is performed for the purpose of bringing the adsorbent closer to a dry state. The air supply step is performed until the adsorbent dries to some extent, and the dry state is determined by the surface temperature (for example, about 100 ° C.) of the adsorbent measured by the temperature sensor, a moisture meter, visual confirmation, and the like.

(2) Mixed Gas Supply Step First, steam from the boiler B is sent to the steam heating heater H2 via the pipe P5 and the pipe P4. In this mixed gas supply step, the on-off valve V2 is in the closed state. Next, the sent steam is heated by the steam heating heater H2 and superheated steam (preferably in the range of about 100 ° C. or higher and about 700 ° C. or lower, preferably in the range of about 250 ° C. or higher and about 550 ° C. or lower. It is more preferable to have). Next, the superheated steam is supplied to the superheated steam supply pipe 130 via the pipe P2, passes through the superheated steam supply pipe 130, and passes through the outlet of the superheated steam supply pipe 130 and the second supply port OP2 to enter the internal space of the container body 110. Is supplied to. The superheated steam supplied to the internal space of the container body 110 acts directly on the adsorbent to evaporate the organic solvent or the like from the adsorbent or decompose / vaporize the suspended matter to regenerate the adsorbent. In this mixed gas supply step, while the superheated steam is supplied to the internal space of the container body 110 through the superheated steam supply pipe 130, the heated air (preferably at a temperature equal to or higher than the temperature of the superheated steam) is air. It passes through the supply pipe 120 and is intermittently supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. More specifically, as shown in FIG. 3, a period in which heated air is supplied to the internal space of the container body 110 for X minutes (for example, about 1 minute) and a period in which heated air is supplied to the internal space of the container body 110 for Y minutes (for example, about 1 minute). For example, a period of no supply (for about 5 minutes) is repeated.

Finally, the evaporated organic solvent, heated air, and superheated steam flow into the recovery pipe 140 through the recovery port OP3 and then pass through the recovery pipe 140. After that, the evaporated organic solvent, heated air and superheated steam are recovered or discharged through the pipe P6.

<Adsorbent cooling treatment>
As described above, since the adsorbent cooling tube 300 is configured in the adsorbent tank 100, the adsorbent cooling treatment for cooling the adsorbent is carried out after the mixed gas supply step of the adsorbent regeneration treatment is carried out. be able to. In the adsorbent cooling treatment, a spraying step, a mist gas supply step, and a fluid supply step are sequentially carried out. Hereinafter, these steps will be described in detail.

(1) Spraying Step First, the on-off valve V11 is opened, and the liquid stored in the liquid tank T is supplied to the spray nozzle 311 by the pump PO1 via the mist source water supply pipe 310. The liquid supplied to the spray nozzle 311 is sprayed by the spray nozzle 311 to generate mist in the internal space of the container body 110. Then, this mist cools the adsorbent. In this spraying step, the mist may be continuously supplied to the internal space of the container main body 110, or may be intermittently supplied to the internal space of the container main body 110.

(2) Mist / gas supply process In the mist / gas supply process, mist is supplied to the internal space of the container body 110 by the spray nozzle 311 as in the spray process, and air from the air compressor AC is supplied to the air heating heater. It is supplied to the air supply pipe 120 via the pipe P1 without being heated by H1, and this air (that is, room temperature air) is supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. .. This mist gas supply step is carried out for the purpose of diffusing the mist over the entire internal space of the container body 110 by air. The temperature of the air supplied from the air compressor AC may be sufficiently lower than that of the adsorbent after the adsorbent heat treatment. Therefore, room temperature air can be used as such air.

(3) Fluid supply process In the fluid supply process, the on-off valve V11 is closed (that is, no mist is generated), the on-off valve V12 is opened, and the liquid stored in the liquid tank T is cooled by the pump PO2. It is guided to the liquid supply pipe 320 and supplied to the internal space of the container main body 110 from the outlet of the cooling liquid supply pipe 320 and the third supply port OP4.

In this fluid supply step, instead of the above aspect, the air from the air compressor AC is guided to the air supply pipe 120 through the pipe P1 without being heated by the air heating heater H1, and is discharged from the air supply pipe 120. And may be supplied from the first supply port OP1 to the internal space of the container body 110, or room temperature air may be supplied from the outlet of the air supply pipe 120 and the first supply port OP1 to the internal space of the container body 110, and the liquid tank. The liquid stored in T may be supplied to the internal space of the container main body 110 from the outlet of the cooling liquid supply pipe 320 and the third supply port OP4.

<Characteristics of the adsorbent tank according to the embodiment of the present invention>
(1)
In the adsorbent tank 100 according to the embodiment of the present invention, the mist source water supply pipe 310 is arranged in the internal space of the container body 110, and the upper, lower, and left portions of the side wall portion of the mist source water supply pipe 310. A spray nozzle 311 is connected to the right side. Then, the spray nozzle 311 generates mist from the source water passing through the mist source water supply pipe 310, and supplies this mist to the internal space of the container main body 110. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, the adsorbent can be slowly cooled by the mist. Therefore, in the adsorbent tank 100, deterioration of the adsorbent due to thermal shock can be suppressed as much as possible.

(2)
In the adsorbent tank 100 according to the embodiment of the present invention, the cooling liquid supply pipe 320 is arranged in the internal space of the container body 110, and the upper, lower, and left portions of the side wall portion of the cooling liquid supply pipe 320. On the right side, a plurality of third supply ports OP4 are formed at equal intervals. Then, the liquid passing through the cooling liquid supply pipe 320 is supplied to the internal space of the container main body 110 through the outlet of the cooling liquid supply pipe 320 and the third supply port OP4. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, the cooling rate of the adsorbent can be increased in the fluid supply step. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, the cooling time of the adsorbent can be shortened as compared with the case where the adsorbent is cooled only by the spraying step.

(3)
In the adsorbent tank 100 according to the embodiment of the present invention, room temperature air is supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1 in the mist gas supply step. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, convection can be caused in the internal space of the container body 110 by room temperature air. That is, the mist can be diffused to the entire internal space of the container body 110 in the mist gas supply process. Further, in the fluid supply step, room temperature air is supplied from the outlet of the air supply pipe 120 and the first supply port OP1 to the internal space of the container main body 110, and the liquid stored in the liquid tank T is supplied to the cooling liquid supply pipe 320. When the liquid is supplied to the internal space of the container body 110 from the outlet and the third supply port OP4, the liquid can be diffused to the entire internal space of the container body 110. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, the adsorbent can be cooled as uniformly as possible. Furthermore, in the adsorbent tank 100 according to the embodiment of the present invention, the adsorbent can be cooled by room temperature air.

(4)
In the adsorbent tank 100 according to the embodiment of the present invention, the protective net pipe 330 covers the mist source water supply pipe 310 and the cooling liquid supply pipe 320. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, it is possible to prevent the adsorbent from being clogged with the outlet of the spray nozzle 311 and the third supply port OP4 of the cooling liquid supply pipe 320 as much as possible.

<Modification example>
(A)
In the adsorbent tank 100 according to the previous embodiment, the two air supply pipes 120 are penetrated into the intermediate portion of the circular wall portion 111B, and the two superheated steam supply pipes 130 are penetrated into the lower portion of the circular wall portion 111B. Two collection tubes 140 were penetrated into the upper part of the lid portion 112. However, the number of the air supply pipe 120, the superheated steam supply pipe 130, and the recovery pipe 140 may be one or three or more, respectively. Further, the air supply pipe 120 may penetrate into the portion of the circular wall portion 111B other than the intermediate portion of the circular wall portion 111B, or the superheated steam supply pipe 130 may penetrate the portion of the circular wall portion 111B other than the lower portion of the circular wall portion 111B. May be penetrated into.

(B)
In the adsorbent tank 100 according to the previous embodiment, heated air was intermittently supplied to the internal space of the container body 110 through the air supply pipe 120 in the mixed gas supply step. However, instead of heated air, inert gas (e.g., rare gas (such as helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), etc.), nitrogen _{(N 2)} gas, Carbon dioxide (CO ₂ ) gas, etc.) and superheated steam obtained by reheating the superheated steam recovered from the internal space of the container body 110 after passing through the recovery pipe 140 enter the internal space of the container body 110 through the air supply pipe 120. It may be supplied intermittently.

(C)
In the adsorbent tank 100 according to the previous embodiment, a plurality of first supply ports OP1 are formed at equal intervals on the upper, lower, left and right portions of the side wall portion of the air supply pipe 120. However, a plurality of first supplies are not provided on the upper, lower, left and right portions of the side wall portion of the air supply pipe 120, but on, for example, the upper left portion, the lower left portion, the upper right portion and the lower right portion of the side wall portion of the air supply pipe 120. The mouth OP1s may be formed at equal intervals. Further, a plurality of first supply ports OP1 may be additionally formed in the side wall portions other than the upper portion, the lower portion, the left portion and the right portion of the side wall portion of the air supply pipe 120.

Further, in the adsorbent tank 100 according to the previous embodiment, a plurality of second supply ports OP2 are formed at equal intervals on the upper portion of the side wall portion of the superheated steam supply pipe 130. However, like the plurality of first supply ports OP1 formed in the air supply pipe 120, the plurality of second supply ports OP2 are formed in the upper part, the lower part, the left part and the right part of the side wall portion of the superheated steam supply pipe 130. May be done.

(D)
In the adsorbent tank 100 according to the previous embodiment, a plurality of first supply ports OP1 are formed at equal intervals on the upper, lower, left and right portions of the side wall portion of the air supply pipe 120, and the superheated steam supply pipe is formed. A plurality of second supply ports OP2 were formed at equal intervals on the upper portion of the side wall portion of the 130. However, as shown in FIG. 5A, slits S1 may be formed in the upper portion, the lower portion, the left portion, and the right portion of the side wall portion of the air supply pipe 120. Further, as shown in FIG. 5B, a slit S2 may be formed in the upper part of the side wall portion of the superheated steam supply pipe 130. Furthermore, as shown in FIG. 5A, slits S1 may be formed in the upper part, the lower part, the left part and the right part of the side wall portion of the superheated steam supply pipe 130.

(E)
In the adsorbent tank 100 according to the previous embodiment, the on-off valve V1 was in the open state and the on-off valve V2 was in the closed state in the air supply step. However, in the air supply step, the on-off valve V2 may be opened, and the air from the air compressor AC may be sent to the steam heating heater H2 via the pipe P3 and the pipe P4. In such a case, this air is heated by the steam heating heater H2 to become heated air, is supplied to the superheated steam supply pipe 130 via the pipe P2, and is supplied to the internal space of the container main body 110 through the superheated steam supply pipe 130. become. Further, under high temperature conditions, the air from the air compressor AC is supplied to the superheated steam supply pipe 130 via the pipe P2 without being heated by the steam heating heater H2, and is supplied to the superheated steam supply pipe 130 through the superheated steam supply pipe 130. It may be supplied to the internal space of the container body 110.

Further, in the adsorbent tank 100 according to the previous embodiment, the on-off valve V2 was in a closed state in the mixed gas supply step. However, during the period when the supply of heated air in the mixed gas supply process is stopped (see FIG. 3), the on-off valve V2 is opened, and the steam from the boiler B is aired through the pipe P4 and the pipe P3. It may also be sent to the heating heater H1. In such a case, this steam is heated by the air heating heater H1 to become superheated steam, is supplied to the air supply pipe 120 via the pipe P1, and is supplied to the internal space of the container main body 110 through the air supply pipe 120. .. Then, in the period when the supply of the heated air is started, the on-off valve V2 is closed.

(F)
In the adsorbent tank 100 according to the previous embodiment, air was supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. However, the outlet of the air supply pipe 120 may be blocked. In such a case, air is supplied to the internal space of the container body 110 only through the first supply port OP1.

Further, in the adsorbent tank 100 according to the previous embodiment, the superheated steam was supplied to the internal space of the container body 110 through the outlet of the superheated steam supply pipe 130 and the second supply port OP2. However, the outlet of the superheated steam supply pipe 130 may be blocked. In such a case, the superheated steam is supplied to the internal space of the container body 110 only through the second supply port OP2.

(G)
As shown in FIG. 6, the adsorbent tank 200 in which a plurality of the adsorbent tanks 100 according to the previous embodiment are connected may be adopted. In the adsorbent tank 200, an outer wall 150 surrounding the plurality of adsorbent tanks 100 and a partition plate 160 for partitioning the adsorbent tank 100 are additionally configured. Further, in the adsorbent tank 200, the horizontal flange pipe 115 also serves as the lower vertical flange pipe 114 according to the previous embodiment.

In a form such as the adsorbent tank 200, a plurality of adsorbent tanks 100 can be flexibly connected according to the space of the installation location, the needs of the customer, and the like.

The modified examples (A) to (G) may be applied individually to each example, or may be applied in combination of a plurality of examples.

100 Adsorbent tank (adsorbent regenerator)
110 Container body (container)
120 Air supply pipe (gas supply pipe)
310 Mist source water supply pipe (first liquid supply pipe)
311 Spray nozzle 320 Cooling liquid supply pipe (second liquid supply pipe)
330 Protective net tube (protective net)
OP4 3rd supply port (through port)

The present invention relates to an adsorbent regenerator and an adsorbent cooling method.

In the past, "a regenerating device for separating the substance from the adsorbent adsorbing the substance and regenerating the adsorption capacity of the adsorbent, and the first reservoir storing the adsorbent, and A hot air introducing means for introducing hot air into the first container, a steam introducing means for introducing steam into the first container, and a second container into which the gas in the first container is introduced. And a regenerator characterized by including a catalyst stored in the second reservoir "(see, for example, Japanese Patent Application Laid-Open No. 2016-22403).

Japanese Unexamined Patent Publication No. 2016-22403

By the way, in order to regenerate the adsorbent having a deteriorated purification function, the adsorbent may be heat-treated by superheated steam or the like. If the adsorbent after the heat treatment is left as it is at a high temperature, the adsorbent may be damaged or deteriorated by heat. Therefore, it is preferable that the adsorbent after the heat treatment is cooled as quickly as possible, but if the adsorbent is rapidly cooled, the adsorbent tends to deteriorate due to thermal shock.

An object of the present invention is to provide an adsorbent regenerator and an adsorbent cooling method capable of suppressing deterioration of the adsorbent due to thermal shock as much as possible.

The adsorbent regenerator according to the first aspect of the present invention includes a container, a spray nozzle, a first liquid supply pipe, a liquid supply unit, and a control unit . The container is filled with an adsorbent having a high temperature (for example, activated carbon, zeolite, ion exchange resin, etc.). The spray nozzle is arranged in the container. The first liquid supply pipe is connected to the spray nozzle. The liquid supply unit is connected to the first liquid supply pipe and supplies the liquid to the first liquid supply pipe. The control unit controls the liquid supply unit. Then, after the regenerating treatment of the adsorbent, the control unit performs the first control of supplying the mist into the container through the spray nozzle to the liquid supply unit to cool the adsorbent.

Therefore, this adsorbent regenerator can generate mist from the liquid passing through the first liquid supply pipe by the spray nozzle and supply the mist into the container. Therefore, in this adsorbent regenerator, the adsorbent in the container can be slowly cooled by the mist. Therefore, in this adsorbent regenerator, deterioration of the adsorbent due to thermal shock can be suppressed as much as possible.

The adsorbent regenerator according to the second aspect of the present invention is the adsorbent regenerator according to the first aspect , and further includes a gas supply pipe and a gas supply unit. The gas supply pipe is inserted into the container and supplies gas into the container. The gas supply unit is connected to the gas supply pipe and supplies gas to the gas supply pipe. Then, the control unit controls the gas supply unit after performing the first control to supply the mist into the container through the spray nozzle to the liquid supply unit and to the gas supply unit through the gas supply pipe into the container. The adsorbent is cooled by performing the second control of supplying the gas.

Therefore, in this adsorbent regenerator, convection can be caused in the container by the gas, and the mist generated by the spray nozzle and the liquid passing through the second liquid supply pipe can be diffused throughout the container. Therefore, in this adsorbent regenerator, the adsorbent can be cooled as uniformly as possible. Here, the gas is preferably air. The temperature of the gas may be room temperature. This is because room temperature is usually lower than the temperature of the adsorbent after the heat treatment, so air at room temperature is sufficient to cool the adsorbent. In such a case, it is not necessary to heat or cool the gas, which saves energy.

The adsorbent regenerator according to the third aspect of the present invention is the adsorbent regenerator according to the second aspect , and further includes a second liquid supply pipe. The second liquid supply pipe is inserted into the container, and a plurality of through holes are formed on the side wall to supply the liquid into the container. Then, the liquid supply unit is connected to the second liquid supply pipe and supplies the liquid to the second liquid supply pipe. After performing the second control, the control unit performs the third control of supplying the liquid into the container through the second liquid supply pipe to cool the adsorbent.

Therefore, in this adsorbent regenerator, after the mist is supplied into the container through the spray nozzle, the liquid (for example, water) passing through the second liquid supply pipe can be efficiently supplied into the container. Therefore, in this adsorbent regenerator, after the adsorbent is cooled to a temperature at which the adsorbent is not subjected to thermal shock by the mist, the cooling rate of the adsorbent can be increased by the liquid. Therefore, this adsorbent regenerator can shorten the cooling time of the adsorbent as compared with the case where the adsorbent is cooled only by the mist.

The adsorbent regenerator according to the fourth aspect of the present invention is the adsorbent regenerator according to the third aspect , and the plurality of through holes are formed so as to be arranged in the circumferential direction in the second liquid supply pipe.

Therefore, in this adsorbent regenerator, the liquid passing through the second liquid supply pipe can be diffused throughout the container. Therefore, in this adsorbent regenerator, the adsorbent in the container can be cooled as uniformly as possible.

The adsorbent regenerator according to the fifth aspect of the present invention is the adsorbent regenerator according to the third or fourth aspect , and further includes a protective net. The protective net covers the first liquid supply pipe and the second liquid supply pipe.

Therefore, in this adsorbent regenerator, it is possible to prevent the adsorbent from being clogged at the outlet of the spray nozzle and the through port of the second liquid supply pipe as much as possible.

The adsorbent regenerator according to the sixth aspect of the present invention is the adsorbent regenerator according to the first aspect, and the first control is to slowly cool the adsorbent to suppress deterioration of the adsorbent due to thermal shock. Will be executed.

The adsorbent cooling method according to the seventh aspect of the present invention includes a spraying step. In the spraying step, in an adsorbent regenerator having a container, a spray nozzle arranged in the container, and a first liquid supply pipe connected to the spray nozzle, after the adsorbent regeneration process , the adsorbent is put into the container through the spray nozzle. The adsorbent is cooled by supplying the mist. The container is filled with an adsorbent having a high temperature (for example, activated carbon, zeolite, ion exchange resin, etc.).

Therefore, in this adsorbent cooling method, the adsorbent in the container can be slowly cooled by the mist. Therefore, in this adsorbent cooling method, deterioration of the adsorbent due to thermal shock can be suppressed as much as possible.

The adsorbent cooling method according to the eighth aspect of the present invention is the adsorbent cooling method according to the seventh aspect , and the adsorbent regenerator further includes a gas supply pipe. The gas supply pipe is inserted into the container and supplies gas into the container. Further, this adsorbent cooling method further includes a mist gas supply step. In the mist gas supply step, after the spraying step , the mist is supplied into the container through the spray nozzle, and the gas is supplied into the container through the gas supply pipe to cool the adsorbent .

Therefore, in this adsorbent cooling method, in the mist gas supply step, convection can be caused in the container by the gas, and the mist generated by the spray nozzle can be diffused throughout the container. Therefore, in this adsorbent cooling method, the adsorbent can be cooled as uniformly as possible. Here, the gas is preferably air. The temperature of the gas may be room temperature. This is because room temperature is usually lower than the temperature of the adsorbent after the heat treatment, so air at room temperature is sufficient to cool the adsorbent. In such a case, it is not necessary to heat or cool the gas, which saves energy.

The adsorbent cooling method according to the ninth aspect of the present invention is the adsorbent cooling method according to the eighth aspect , and the adsorbent regenerator further includes a second liquid supply pipe. The second liquid supply pipe is inserted through the container. Further, the second liquid supply pipe has a plurality of through holes formed on the side wall, and supplies the liquid into the container. Further, this adsorbent cooling method further includes a fluid supply step. In the fluid supply step, after the mist gas supply step, the adsorbent is cooled by supplying the liquid passing through the second liquid supply pipe into the container.

As described above, in this adsorbent cooling method, a liquid (for example, water) passing through the second liquid supply pipe is supplied into the container in the fluid supply step. Therefore, in this adsorbent cooling method, after the adsorbent is cooled to a temperature at which the adsorbent is not subjected to thermal shock by the mist, the cooling rate of the adsorbent can be increased by the liquid. Therefore, by using this adsorbent cooling method, the cooling time of the adsorbent can be shortened as compared with the case of cooling only with mist.

It is a front view of the adsorbent tank which concerns on embodiment of this invention. FIG. 1 is a cross-sectional view taken along the line AA of FIG. In this figure, the components shown in FIG. 4 are omitted. It is a figure which shows the timing of supply of heated air in the mixed gas supply process which concerns on embodiment of this invention. It is a side transmission view of the adsorbent cooling pipe which constitutes the adsorbent tank which concerns on embodiment of this invention. It is a side view of the air supply pipe and superheated steam supply pipe which concerns on modification (D). It is a side view of the adsorbent tank which concerns on the modification (G). In this figure, the components shown in FIG. 4 are omitted.

As shown in FIGS. 1 and 2, the adsorbent tank 100 according to the embodiment of the present invention mainly includes a container body 110, an air supply pipe 120, a superheated steam supply pipe 130, a recovery pipe 140, a leg LG, and the like. It is composed of an adsorbent cooling pipe 300. Hereinafter, these components will be described in detail, and then the fluid purification treatment, the adsorbent regeneration treatment, and the adsorbent cooling treatment using the adsorbent tank 100 will be described in detail.

(1) Container body The container body 110 is a member for filling an adsorbent such as activated carbon, and as shown in FIGS. 1 and 2, mainly the body portion 111, the lid portion 112, and the upper vertical flange. It is formed from a pipe 113, a lower vertical flange pipe 114 and a horizontal flange pipe 115. Although not shown, a temperature sensor for measuring the temperature of the internal space of the container body 110 and the surface temperature of the adsorbent is provided in the internal space of the container body 110. The temperature sensor may be arranged at only one place or at two or more places.

As shown in FIGS. 1 and 2, the body portion 111 is a bottomed cylindrical wall portion made of a metal such as a stainless alloy, and is formed of a cylindrical wall portion 111A and a circular wall portion 111B. As shown in FIGS. 1 and 2, an upper vertical flange tube 113 is joined to the central portion of the upper wall portion of the cylindrical wall portion 111A, and a lower vertical flange is connected to the central portion of the lower wall portion of the cylindrical wall portion 111A. The tubes 114 are joined. Further, as shown in FIGS. 1 and 2, two air supply pipes 120 are penetrated into the intermediate portion of the circular wall portion 111B, and two superheated steam supply pipes 130 are inserted below the circular wall portion 111B. It has been penetrated.

As shown in FIGS. 1 and 2, the lid portion 112 is a disk-shaped wall portion made of a metal such as a stainless alloy, and covers the opposite side of the circular wall portion 111B. As shown in FIG. 2, two recovery pipes 140 are penetrated into the upper part of the lid portion 112, and a horizontal flange pipe 115 is penetrated into the lower part of the lid portion 112.

As described above, the upper vertical flange pipe 113 is joined to the central portion of the upper wall portion of the cylindrical wall portion 111A. The internal passage of the upper vertical flange pipe 113 communicates with the internal space of the container body 110. The upper vertical flange tube 113 is normally sealed, but is opened when the adsorbent is supplied, and is used as an adsorbent supply port.

As described above, the lower vertical flange tube 114 is joined to the central portion of the lower wall portion of the cylindrical wall portion 111A. The internal passage of the lower vertical flange pipe 114 communicates with the internal space of the container body 110. Further, the lower vertical flange pipe 114 is connected to the pipe P8 in which the on-off valve V4 is arranged. The pipe P8 is used as a supply port for a fluid to be treated such as water to be purified. The on-off valve V4 is normally closed, but is opened when the fluid to be treated is sprayed on the adsorbent. Then, when the on-off valve V4 is in the open state, the fluid to be processed that has passed through the pipe P8 is supplied to the internal space of the container body 110 through the lower vertical flange pipe 114.

As described above, the horizontal flange pipe 115 is joined to the lower part of the lid portion 112. The internal passage of the horizontal flange pipe 115 communicates with the internal space of the container body 110. Although the horizontal flange pipe 115 is normally sealed, it is opened when some trouble occurs and is used as an outlet for the adsorbent.

(2) Air supply pipe The air supply pipe 120 is for supplying air to the internal space of the container main body 110. As described above, the two air supply pipes 120 are penetrated into the intermediate portion of the circular wall portion 111B. As shown in FIG. 2, the air supply pipe 120 extends in the front-rear direction to the vicinity of the lid portion 112. Then, as shown in FIG. 2, a plurality of first supply ports OP1 are formed at equal intervals on the upper portion, the lower portion, the left portion, and the right portion of the side wall portion of the air supply pipe 120. That is, when the air passes through the air supply pipe 120, it is supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. Further, the air supply pipe 120 is connected to the air heating heater H1 via the pipe P1. The air heating heater H1 is connected to an air compressor (or a blower or the like) AC via a pipe P3 in which an on-off valve V1 is provided. The pipe P3 is also connected to the pipe P4 in which the on-off valve V2 is arranged. With such a configuration, when the on-off valve V1 is in the open state and the on-off valve V2 is in the closed state, the air from the air compressor AC is heated by the air heating heater H1 and heated air (for example, from room temperature or higher to about 350). The temperature is within the range of ° C. or lower), and heated air is supplied to the air supply pipe 120 via the pipe P1. Although the adsorbent is brought closer to a dry state in the air supply step described later, when the air supply step is performed under high temperature conditions (for example, in summer), the air from the air compressor AC is aired. The air may be supplied to the air supply pipe 120 via the pipe P1 without being heated by the heating heater H1.

(3) Superheated steam supply pipe The superheated steam supply pipe 130 is for supplying superheated steam to the internal space of the container main body 110. As described above, the two superheated steam supply pipes 130 are penetrated into the lower part of the circular wall portion 111B. As shown in FIG. 2, the superheated steam supply pipe 130 extends in the front-rear direction to the vicinity of the lid portion 112. Then, as shown in FIG. 2, a plurality of second supply ports OP2 are formed at equal intervals on the upper portion of the side wall portion of the superheated steam supply pipe 130. That is, when the superheated steam passes through the superheated steam supply pipe 130, it is supplied to the internal space of the container main body 110 through the outlet of the superheated steam supply pipe 130 and the second supply port OP2. Further, the superheated steam supply pipe 130 is connected to the steam heating heater H2 via the pipe P2. The steam heating heater H2 is connected to the boiler B via the pipe P4 and the pipe P5. With such a configuration, when the on-off valve V2 is in the closed state, the steam from the boiler B is heated by the steam heating heater H2 to become superheated steam (for example, within the range of about 250 ° C. or higher and about 550 ° C. or lower), and the piping Superheated steam is supplied to the superheated steam supply pipe 130 via P2.

The air heating heater H1, the steam heating heater H2, the air compressor AC, and the boiler B are connected to the control panel C. The control panel C controls these operations (for example, power on / off, output, etc.) and displays the temperature of the temperature sensor described above.

(4) Recovery pipe The recovery pipe 140 is for recovering air, superheated steam, purified fluid to be treated, and the like. As described above, the two collection tubes 140 are penetrated into the upper part of the lid portion 112. As shown in FIG. 2, the recovery pipe 140 extends in the front-rear direction to the vicinity of the circular wall portion 111B. Then, as shown in FIG. 2, a plurality of collection ports OP3 are formed at equal intervals over the entire circumference in the front portion of the side wall portion of the recovery pipe 140. Here, air, superheated steam, and the purified fluid to be treated flow into the recovery pipe 140 through the recovery port OP3 and then pass through the recovery pipe 140. Then, the air and superheated steam that have passed through the recovery pipe 140 are recovered or discharged through the pipe P6. The fluid to be processed that has passed through the recovery pipe 140 is recovered or used through the pipe P7 when the on-off valve V3 arranged in the pipe P7 is in the open state.

(5) Leg The leg LG is for supporting the container body 110. As shown in FIGS. 1 and 2, the leg LG extends in the downward oblique direction from the right front portion, the right rear portion, the left front portion, and the left rear portion in the lower part of the cylindrical wall portion 111A, respectively.

(6) Adsorbent cooling pipe The adsorbent cooling pipe 300 is for cooling the adsorbent after the mixed gas supply step of the adsorbent regeneration treatment is carried out, and has a circular wall as shown in FIG. It is penetrated into the portion of the portion 111B between the portion where the air supply pipe 120 is penetrated and the portion where the superheated steam supply pipe 130 is penetrated. Then, as shown in FIG. 4, the adsorbent cooling pipe 300 is composed of a mist source water supply pipe 310, a cooling liquid supply pipe 320, and a protective net pipe 330. Hereinafter, these components will be described in detail.

The mist source water supply pipe 310 is for guiding the mist source water to the spray nozzle 311 of the container body 110, and is arranged in the internal space of the container body 110 and the internal space of the protective net tube 330 as shown in FIG. It is installed. As shown in FIG. 4, the spray nozzle 311 is connected to the upper part, the lower part, the left part and the right part of the side wall portion of the mist source water supply pipe 310. The spray nozzle 311 generates mist from a liquid (for example, a fluid to be treated, well water, industrial water, tap water, etc.) that has passed through the mist source water supply pipe 310, and enters the internal space of the container body 110. Supply. The size of this mist is preferably in the range of 10 microns or more and less than 199 microns, and more preferably in the range of 40 microns or more and 60 microns or less. Further, as shown in FIG. 4, the mist source water supply pipe 310 is connected to the pump PO1 via a pipe P11 in which the on-off valve V11 is arranged. The pump PO1 is connected to the liquid tank T via the pipe P12. With such a configuration, when the on-off valve V11 is in the open state, the liquid stored in the liquid tank T is supplied to the mist source water supply pipe 310 by the pump PO1. Although not shown, the pump PO1 is connected to the control panel C.

The cooling liquid supply pipe 320 is for guiding a liquid (for example, a fluid to be treated, well water, industrial water, tap water, etc., which has been subjected to fluid purification treatment) to the internal space of the container body 110, and is shown in FIG. As shown, it is arranged in the internal space of the container main body 110 and the internal space of the protective net tube 330. As shown in FIG. 4, a plurality of third supply ports OP4 are formed at equal intervals on the upper portion, the lower portion, the left portion, and the right portion of the side wall portion of the cooling liquid supply pipe 320. That is, the liquid passing through the cooling liquid supply pipe 320 is guided to the internal space of the container main body 110 through the outlet of the cooling liquid supply pipe 320 and the third supply port OP4. Further, the cooling liquid supply pipe 320 is connected to the pump PO2 via a pipe P13 in which the on-off valve V12 is arranged. The pump PO2 is connected to the liquid tank T via the pipe P14. With such a configuration, when the on-off valve V12 is in the open state, the liquid stored in the liquid tank T is supplied to the cooling liquid supply pipe 320 by the pump PO2. Although not shown, the pump PO2 is connected to the control panel C.

The protective net pipe 330 is a net-like pipe, and as shown in FIG. 4, covers the mist source water supply pipe 310 and the cooling liquid supply pipe 320. The size of the mesh (not shown) of the protective net tube 330 is designed to be smaller than the average size of the adsorbent.

<Fluid purification treatment>
When a fluid to be treated such as water that has passed through the pipe P8 is supplied to the internal space of the container body 110 through the lower vertical flange pipe 114, the fluid to be treated is an adsorbent such as activated charcoal filled in the container body 110. It is supplied to the internal space of the container body 110 while contacting the container body 110. At this time, the adsorbent captures the organic solvent, suspended matter, etc. contained in water or the like and purifies the fluid to be treated. Then, when the fluid to be treated reaches the recovery pipe 140, the fluid to be treated is in a sufficiently purified state. Then, the purified fluid to be treated flows into the recovery pipe 140 through the recovery port OP3 and then passes through the recovery pipe 140. After that, the fluid to be treated is recovered or used through the pipe P7 when the on-off valve V3 is in the open state.

<Adsorbent regeneration treatment>
If the above-mentioned fluid purification treatment is continued for a while, the purification function of the adsorbent deteriorates. Therefore, the following adsorbent regeneration treatment is performed. In the adsorbent regeneration process, an air supply step and a mixed gas supply step are mainly performed.

(1) Air supply step First, air from the air compressor AC is sent to the air heating heater H1 via the pipe P3. In this air supply step, the on-off valve V1 is in the open state and the on-off valve V2 is in the closed state. Next, the sent air is heated by the air heating heater H1 to become heated air. Next, the heated air is supplied to the air supply pipe 120 via the pipe P1, passes through the air supply pipe 120, and is supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. NS. As described above, under high temperature conditions, the air from the air compressor AC may be supplied to the air supply pipe 120 via the pipe P1 without being heated by the air heating heater H1. In this case as well, the air passes through the air supply pipe 120 and is supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. Since the adsorbent after the above-mentioned fluid purification treatment contains water, this air supply step is performed for the purpose of bringing the adsorbent closer to a dry state. The air supply step is performed until the adsorbent dries to some extent, and the dry state is determined by the surface temperature (for example, about 100 ° C.) of the adsorbent measured by the temperature sensor, a moisture meter, visual confirmation, and the like.

(2) Mixed Gas Supply Step First, steam from the boiler B is sent to the steam heating heater H2 via the pipe P5 and the pipe P4. In this mixed gas supply step, the on-off valve V2 is in the closed state. Next, the sent steam is heated by the steam heating heater H2 and superheated steam (preferably in the range of about 100 ° C. or higher and about 700 ° C. or lower, preferably in the range of about 250 ° C. or higher and about 550 ° C. or lower. It is more preferable to have). Next, the superheated steam is supplied to the superheated steam supply pipe 130 via the pipe P2, passes through the superheated steam supply pipe 130, and passes through the outlet of the superheated steam supply pipe 130 and the second supply port OP2 to enter the internal space of the container body 110. Is supplied to. The superheated steam supplied to the internal space of the container body 110 acts directly on the adsorbent to evaporate the organic solvent or the like from the adsorbent or decompose / vaporize the suspended matter to regenerate the adsorbent. In this mixed gas supply step, while the superheated steam is supplied to the internal space of the container body 110 through the superheated steam supply pipe 130, the heated air (preferably at a temperature equal to or higher than the temperature of the superheated steam) is air. It passes through the supply pipe 120 and is intermittently supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. More specifically, as shown in FIG. 3, a period in which heated air is supplied to the internal space of the container body 110 for X minutes (for example, about 1 minute) and a period in which heated air is supplied to the internal space of the container body 110 for Y minutes (for example, about 1 minute). For example, a period of no supply (for about 5 minutes) is repeated.

Finally, the evaporated organic solvent, heated air, and superheated steam flow into the recovery pipe 140 through the recovery port OP3 and then pass through the recovery pipe 140. After that, the evaporated organic solvent, heated air and superheated steam are recovered or discharged through the pipe P6.

<Adsorbent cooling treatment>
As described above, since the adsorbent cooling tube 300 is configured in the adsorbent tank 100, the adsorbent cooling treatment for cooling the adsorbent is carried out after the mixed gas supply step of the adsorbent regeneration treatment is carried out. be able to. In the adsorbent cooling treatment, a spraying step, a mist gas supply step, and a fluid supply step are sequentially carried out. Hereinafter, these steps will be described in detail.

(1) Spraying Step First, the on-off valve V11 is opened, and the liquid stored in the liquid tank T is supplied to the spray nozzle 311 by the pump PO1 via the mist source water supply pipe 310. The liquid supplied to the spray nozzle 311 is sprayed by the spray nozzle 311 to generate mist in the internal space of the container body 110. Then, this mist cools the adsorbent. In this spraying step, the mist may be continuously supplied to the internal space of the container main body 110, or may be intermittently supplied to the internal space of the container main body 110.

(2) Mist / gas supply process In the mist / gas supply process, mist is supplied to the internal space of the container body 110 by the spray nozzle 311 as in the spray process, and air from the air compressor AC is supplied to the air heating heater. It is supplied to the air supply pipe 120 via the pipe P1 without being heated by H1, and this air (that is, room temperature air) is supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. .. This mist gas supply step is carried out for the purpose of diffusing the mist over the entire internal space of the container body 110 by air. The temperature of the air supplied from the air compressor AC may be sufficiently lower than that of the adsorbent after the adsorbent heat treatment. Therefore, room temperature air can be used as such air.

(3) Fluid supply process In the fluid supply process, the on-off valve V11 is closed (that is, no mist is generated), the on-off valve V12 is opened, and the liquid stored in the liquid tank T is cooled by the pump PO2. It is guided to the liquid supply pipe 320 and supplied to the internal space of the container main body 110 from the outlet of the cooling liquid supply pipe 320 and the third supply port OP4.

In this fluid supply step, instead of the above aspect, the air from the air compressor AC is guided to the air supply pipe 120 through the pipe P1 without being heated by the air heating heater H1, and is discharged from the air supply pipe 120. And may be supplied from the first supply port OP1 to the internal space of the container body 110, or room temperature air may be supplied from the outlet of the air supply pipe 120 and the first supply port OP1 to the internal space of the container body 110, and the liquid tank. The liquid stored in T may be supplied to the internal space of the container main body 110 from the outlet of the cooling liquid supply pipe 320 and the third supply port OP4.

<Characteristics of the adsorbent tank according to the embodiment of the present invention>
(1)
In the adsorbent tank 100 according to the embodiment of the present invention, the mist source water supply pipe 310 is arranged in the internal space of the container body 110, and the upper, lower, and left portions of the side wall portion of the mist source water supply pipe 310. A spray nozzle 311 is connected to the right side. Then, the spray nozzle 311 generates mist from the source water passing through the mist source water supply pipe 310, and supplies this mist to the internal space of the container main body 110. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, the adsorbent can be slowly cooled by the mist. Therefore, in the adsorbent tank 100, deterioration of the adsorbent due to thermal shock can be suppressed as much as possible.

(2)
In the adsorbent tank 100 according to the embodiment of the present invention, the cooling liquid supply pipe 320 is arranged in the internal space of the container body 110, and the upper, lower, and left portions of the side wall portion of the cooling liquid supply pipe 320. On the right side, a plurality of third supply ports OP4 are formed at equal intervals. Then, the liquid passing through the cooling liquid supply pipe 320 is supplied to the internal space of the container main body 110 through the outlet of the cooling liquid supply pipe 320 and the third supply port OP4. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, the cooling rate of the adsorbent can be increased in the fluid supply step. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, the cooling time of the adsorbent can be shortened as compared with the case where the adsorbent is cooled only by the spraying step.

(3)
In the adsorbent tank 100 according to the embodiment of the present invention, room temperature air is supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1 in the mist gas supply step. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, convection can be caused in the internal space of the container body 110 by room temperature air. That is, the mist can be diffused to the entire internal space of the container body 110 in the mist gas supply process. Further, in the fluid supply step, room temperature air is supplied from the outlet of the air supply pipe 120 and the first supply port OP1 to the internal space of the container main body 110, and the liquid stored in the liquid tank T is supplied to the cooling liquid supply pipe 320. When the liquid is supplied to the internal space of the container body 110 from the outlet and the third supply port OP4, the liquid can be diffused to the entire internal space of the container body 110. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, the adsorbent can be cooled as uniformly as possible. Furthermore, in the adsorbent tank 100 according to the embodiment of the present invention, the adsorbent can be cooled by room temperature air.

(4)
In the adsorbent tank 100 according to the embodiment of the present invention, the protective net pipe 330 covers the mist source water supply pipe 310 and the cooling liquid supply pipe 320. Therefore, in the adsorbent tank 100 according to the embodiment of the present invention, it is possible to prevent the adsorbent from being clogged with the outlet of the spray nozzle 311 and the third supply port OP4 of the cooling liquid supply pipe 320 as much as possible.

<Modification example>
(A)
In the adsorbent tank 100 according to the previous embodiment, the two air supply pipes 120 are penetrated into the intermediate portion of the circular wall portion 111B, and the two superheated steam supply pipes 130 are penetrated into the lower portion of the circular wall portion 111B. Two collection tubes 140 were penetrated into the upper part of the lid portion 112. However, the number of the air supply pipe 120, the superheated steam supply pipe 130, and the recovery pipe 140 may be one or three or more, respectively. Further, the air supply pipe 120 may penetrate into the portion of the circular wall portion 111B other than the intermediate portion of the circular wall portion 111B, or the superheated steam supply pipe 130 may penetrate the portion of the circular wall portion 111B other than the lower portion of the circular wall portion 111B. May be penetrated into.

(B)
In the adsorbent tank 100 according to the previous embodiment, heated air was intermittently supplied to the internal space of the container body 110 through the air supply pipe 120 in the mixed gas supply step. However, instead of heated air, inert gas (for example, rare gas (helium (He), neon (Ne), argon (Ar), krypton (Kr), xenone (Xe), etc.), nitrogen (N2) gas, dioxide Carbon (CO2) gas, etc.) and superheated steam obtained by reheating the superheated steam recovered from the internal space of the container body 110 through the recovery pipe 140 are intermittently introduced into the internal space of the container body 110 through the air supply pipe 120. May be supplied to.

(C)
In the adsorbent tank 100 according to the previous embodiment, a plurality of first supply ports OP1 are formed at equal intervals on the upper, lower, left and right portions of the side wall portion of the air supply pipe 120. However, a plurality of first supplies are not provided on the upper, lower, left and right portions of the side wall portion of the air supply pipe 120, but on, for example, the upper left portion, the lower left portion, the upper right portion and the lower right portion of the side wall portion of the air supply pipe 120. The mouth OP1s may be formed at equal intervals. Further, a plurality of first supply ports OP1 may be additionally formed in the side wall portions other than the upper portion, the lower portion, the left portion and the right portion of the side wall portion of the air supply pipe 120.

Further, in the adsorbent tank 100 according to the previous embodiment, a plurality of second supply ports OP2 are formed at equal intervals on the upper portion of the side wall portion of the superheated steam supply pipe 130. However, like the plurality of first supply ports OP1 formed in the air supply pipe 120, the plurality of second supply ports OP2 are formed in the upper part, the lower part, the left part and the right part of the side wall portion of the superheated steam supply pipe 130. May be done.

(D)
In the adsorbent tank 100 according to the previous embodiment, a plurality of first supply ports OP1 are formed at equal intervals on the upper, lower, left and right portions of the side wall portion of the air supply pipe 120, and the superheated steam supply pipe is formed. A plurality of second supply ports OP2 were formed at equal intervals on the upper portion of the side wall portion of the 130. However, as shown in FIG. 5A, slits S1 may be formed in the upper portion, the lower portion, the left portion, and the right portion of the side wall portion of the air supply pipe 120. Further, as shown in FIG. 5B, a slit S2 may be formed in the upper part of the side wall portion of the superheated steam supply pipe 130. Furthermore, as shown in FIG. 5A, slits S1 may be formed in the upper part, the lower part, the left part and the right part of the side wall portion of the superheated steam supply pipe 130.

(E)
In the adsorbent tank 100 according to the previous embodiment, the on-off valve V1 was in the open state and the on-off valve V2 was in the closed state in the air supply step. However, in the air supply step, the on-off valve V2 may be opened, and the air from the air compressor AC may be sent to the steam heating heater H2 via the pipe P3 and the pipe P4. In such a case, this air is heated by the steam heating heater H2 to become heated air, is supplied to the superheated steam supply pipe 130 via the pipe P2, and is supplied to the internal space of the container main body 110 through the superheated steam supply pipe 130. become. Further, under high temperature conditions, the air from the air compressor AC is supplied to the superheated steam supply pipe 130 via the pipe P2 without being heated by the steam heating heater H2, and is supplied to the superheated steam supply pipe 130 through the superheated steam supply pipe 130. It may be supplied to the internal space of the container body 110.

Further, in the adsorbent tank 100 according to the previous embodiment, the on-off valve V2 was in a closed state in the mixed gas supply step. However, during the period when the supply of heated air in the mixed gas supply process is stopped (see FIG. 3), the on-off valve V2 is opened, and the steam from the boiler B is aired through the pipe P4 and the pipe P3. It may also be sent to the heating heater H1. In such a case, this steam is heated by the air heating heater H1 to become superheated steam, is supplied to the air supply pipe 120 via the pipe P1, and is supplied to the internal space of the container main body 110 through the air supply pipe 120. .. Then, in the period when the supply of the heated air is started, the on-off valve V2 is closed.

(F)
In the adsorbent tank 100 according to the previous embodiment, air was supplied to the internal space of the container body 110 through the outlet of the air supply pipe 120 and the first supply port OP1. However, the outlet of the air supply pipe 120 may be blocked. In such a case, air is supplied to the internal space of the container body 110 only through the first supply port OP1.

Further, in the adsorbent tank 100 according to the previous embodiment, the superheated steam was supplied to the internal space of the container body 110 through the outlet of the superheated steam supply pipe 130 and the second supply port OP2. However, the outlet of the superheated steam supply pipe 130 may be blocked. In such a case, the superheated steam is supplied to the internal space of the container body 110 only through the second supply port OP2.

(G)
As shown in FIG. 6, the adsorbent tank 200 in which a plurality of the adsorbent tanks 100 according to the previous embodiment are connected may be adopted. In the adsorbent tank 200, an outer wall 150 surrounding the plurality of adsorbent tanks 100 and a partition plate 160 for partitioning the adsorbent tank 100 are additionally configured. Further, in the adsorbent tank 200, the horizontal flange pipe 115 also serves as the lower vertical flange pipe 114 according to the previous embodiment.

In a form such as the adsorbent tank 200, a plurality of adsorbent tanks 100 can be flexibly connected according to the space of the installation location, the needs of the customer, and the like.

The modified examples (A) to (G) may be applied individually to each example, or may be applied in combination of a plurality of examples.

100 Adsorbent tank (adsorbent regenerator)
110 Container body (container)
120 Air supply pipe (gas supply pipe)
310 Mist source water supply pipe (first liquid supply pipe)
311 Spray nozzle 320 Cooling liquid supply pipe (second liquid supply pipe)
330 Protective net tube (protective net)
AC air compressor (gas supply unit)
C control panel (control unit)
OP4 3rd supply port (through port)
PO1 pump (liquid supply unit)
PO2 pump (liquid supply unit)

Claims (9)

With the container
A spray nozzle arranged in the container and
An adsorbent regenerator including a first liquid supply pipe connected to the spray nozzle. A second liquid supply pipe is further provided, which is inserted into the container, has a plurality of through holes formed in the side wall, and supplies liquid into the container.
The adsorbent regenerator according to claim 1. The adsorbent regenerator according to claim 2, wherein the plurality of through holes are formed so as to be arranged in the circumferential direction in the second liquid supply pipe. A protective net covering the first liquid supply pipe and the second liquid supply pipe is further provided.
The adsorbent regenerator according to claim 2 or 3. A gas supply pipe that is inserted into the container and supplies gas into the container is further provided.
The adsorbent regenerator according to any one of claims 1 to 4. In an adsorbent regenerator having a container, a spray nozzle arranged in the container, and a first liquid supply pipe connected to the spray nozzle, a spraying step of supplying mist into the container through the spray nozzle is performed. Prepare, prepare
Adsorbent cooling method. The adsorbent regenerator further has a gas supply pipe that is inserted into the container and supplies gas into the container.
A mist / gas supply step of supplying the mist into the container through the spray nozzle and supplying the gas into the container through the gas supply pipe is further provided.
The adsorbent cooling method according to claim 6. The adsorbent regenerator is inserted into the container, has a plurality of through holes formed in the side wall, and further has a second liquid supply pipe for supplying a liquid into the container.
Further comprising a fluid supply step of supplying the liquid through the second liquid supply pipe into the container.
The adsorbent cooling method according to claim 6 or 7. The mist gas supply step is carried out after the spraying step.
The adsorbent cooling method according to claim 8, wherein the fluid supply step is performed after the mist gas supply step.

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