JP2013091548A - Collection system for cartridge filled with adsorbent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a collection system for a cartridge capable of improving desorption treatment efficiency and reducing transportation costs when a cartridge on which volatile organic compounds of the same type are adsorbed is gathered and collected.SOLUTION: In a collection region, a cartridge 5 where a replacement time comes or an adsorption amount of an organic compound becomes largest is determined as a cartridge to be preferentially collected. A plurality of groups including the cartridge to be preferentially collected are created from among cartridges where solvent types which are the same as the cartridge to be preferentially collected are adsorbed. For each created group, the total adsorbed amount of the volatile organic compound adsorbed by each cartridge is calculated to be scored. A traveling distance when cartridges are collected for each group is scored. The number of cartridges for each group is scored. The total adsorption score, the traveling distance score, and the number-of-cartridge score are totalled to determine collection of cartridges of the group which is the highest in score.

Description

  In order to desorb the volatile organic compound gas from the adsorbent that adsorbs the volatile organic compound gas generated in a facility that uses the volatile organic compound, a cartridge filled with the adsorbent is desorbed. The present invention relates to the technical field of a collection system for cartridges filled with an adsorbent to be collected in a facility.

  In general, highly volatile organic compounds such as toluene, xylene, isopropyl alcohol, and ethyl acetate are referred to as volatile organic compounds (VOCs). Today, it is an important issue to suppress emissions into the atmosphere because it causes various problems and has a negative effect on the human body.

  By the way, such a VOC is widely used as a solvent in various processes such as cleaning, drying, painting, adhesion, and coating performed in various factories such as an electronic device manufacturing factory, a painting factory, and a printing factory. For facilities in use, it is strongly required to take measures to prevent VOC gas from being discharged outside the facilities, and in many cases, installation of a VOC removal device is obligatory.

  As such a VOC removal device, for example, as disclosed in Patent Document 1, VOC gas generated in a facility is sent to an adsorbent tank filled with an adsorbent such as activated carbon to adsorb VOC to the adsorbent. After the adsorption of the VOC by the adsorbent, the adsorbent tank is alternately switched from the adsorption process to the desorption process so that the adsorbed VOC is desorbed, and the desorbed VOC is burned or used as industrial waste. There is known a technique for processing.

  However, such a VOC gas removal device capable of alternately switching between the adsorption and desorption processes is not only complicated and large in size, requires a wide range of installation space, and is expensive, but also uses a water vapor for the desorption process. If a small and medium-sized company or a small and medium-sized company with limited funds is used, a large amount of waste water is generated at the time of desorption, which requires a waste water treatment facility.

  Therefore, as shown in Patent Document 2, a cartridge filled with an adsorbent is installed in an adsorbent tank installed in a VOC use facility, and after the VOC is adsorbed by the installed cartridge, the VOC adsorbed cartridge is installed. Collected in a dedicated VOC desorption facility and collected by desorbing the VOC at the desorption facility, and the cartridge in which the adsorbent has been regenerated by VOC desorption is transported again to the VOC using facility as a recycled cartridge and reused. The composition is known.

  In such a configuration, the VOC gas removal device installed in the VOC use facility may have only a VOC adsorption function, so that the VOC removal device is made compact for the VOC user and the installation area is small. In addition to reducing the cost burden for installation, the VOC desorption facility only needs to centrally manage the VOC desorption process, which increases the efficiency of VOC desorption from the adsorbent. As a result of reducing the cost for the desorption process, it contributed to the cost reduction of the operator who installed the VOC adsorption device.

  By the way, there are many types of VOCs used in VOC use facilities. In Patent Document 2, when collecting cartridges that adsorb VOCs, the VOCs of the same type are collected together. It has been proposed that the operation efficiency in the VOC desorption facility is improved by collectively desorbing the cartridge on which the same type of VOC is adsorbed.

Japanese Patent Laid-Open No. 2000-300955 Japanese Patent No. 3773809

  However, when collecting VOC-adsorbed cartridges, for example, because the cartridges that are adsorbing the same type of VOCs are collected together, the location is close to the cartridge to be collected, for example. Even though a cartridge with a small amount of adsorption may be collected, there is a cartridge in which the removal efficiency of the VOC is improved by removing and collecting together with a cartridge to be collected with a relatively large amount of adsorption. In some cases, the cartridge is not collected because the location of the cartridge is away from the cartridge to be collected. Thus, there is a case in which the VOC desorption efficiency is not improved and the inefficient collection is performed. Accordingly, there is a problem to be solved by the present invention to provide a collection system for a cartridge filled with a desorbing agent for eliminating such inefficient collection of VOC desorption and performing VOC desorption efficiently.

The present invention has been created in view of the above-described circumstances and has been created for the purpose of solving these problems. The invention of claim 1 is filled with an adsorbent for adsorbing a volatile organic compound gas. In the cartridge collection system for collecting the cartridge in which the organic compound gas is adsorbed on the adsorbent at the facility where the organic compound is used, in the desorption facility so as to desorb the organic compound from the adsorbed adsorbent. When the collection system is configured to collect a plurality of cartridges used for the adsorption of organic compound gas of the same type by a transport vehicle, the cartridge is selected from all cartridges in a preset collection area. Priority is given to cartridges that have reached the replacement time, and priority is given to preferentially collecting the cartridge with the largest amount of adsorption when there is no replacement. A combination of any number of cartridges selected from the cartridge determination means and the priority cartridges, and selected from a limit of the number of cartridges that can be simultaneously processed by one detaching device in the detaching facility from among all the cartridges. And a group creation means for creating a plurality of the groups so that there is no same combination of cartridges, and for each of the created groups, calculate the total adsorption amount of the organic compound gas adsorbed in each cartridge, The total adsorption amount score conversion means for converting so that the higher the total adsorption amount is, the higher the score is, and for each of the created groups, the collection route with the shortest travel distance is calculated for collecting all the cartridges of the group. Mileage conversion to convert so that the shorter the mileage, the higher the score For each of the means and the created group, the number of cartridges conversion means for converting so that the higher the number of cartridges in the group, the higher the score, and the total adsorption amount score, travel distance score, and cartridge number score are summed up, It is a collection system for collecting cartridges filled with an adsorbent, characterized by comprising collection group judgment means for judging to collect the cartridge of the group having the highest total score.
According to a second aspect of the present invention, the group creating means is further set so that cartridges having an adsorption amount equal to or smaller than a preset amount are not included in the group. The cartridge filled with the adsorbent according to the first aspect Collection system.
According to a third aspect of the present invention, the group creating means is further set so as not to create a group with a number of cartridges equal to or less than a preset number. Cartridge collection system.
According to a fourth aspect of the present invention, the collection group judging means is further set so as to judge that the group of the collection route not less than the preset travel distance is not collected. Or a collection system for a cartridge filled with the adsorbent according to claim 1.
The invention according to claim 5 is characterized in that the total adsorption amount score, the travel distance score, and the cartridge number score are converted at the same ratio in each score, and the adsorbent according to any one of claims 1 to 4 is filled. Cartridge collection system.
According to a sixth aspect of the present invention, in the conversion of the total adsorption amount score, the travel distance score, and the cartridge number score, at least two of the respective scores are in different ratios. It is a collection system of the cartridge filled with the adsorbent.

According to the first aspect of the present invention, when collecting cartridges that adsorb the same type of VOCs together, cartridges that have been determined to be preferentially collected from all cartridges within a preset collection area are collected. Create a group of included cartridges, and from that group, convert the total VOC adsorption amount of the cartridge, the travel distance when the cartridge is collected, and the number of cartridges into points, and the total of the converted points is the highest Since it is determined that the cartridges of the group are to be collected, when the cartridges of the determined group are collected, not only the removal efficiency in the VOC removal / removal facility can be improved, but also the transportation can be performed by shortening the traveling distance in the cartridge collection. Cost can be reduced, and as many cartridges as possible It is possible to increase the number of processing cartridges VOC desorbed by desorption treatment each time. Then, it is possible to carry out cartridge collection in consideration of each of these conditions of improvement in VOC desorption efficiency, reduction in transportation cost, and increase in the number of VOC desorption processing cartridges.
According to the second aspect of the present invention, it is possible to exclude from the group creation in advance a cartridge with a small VOC adsorption amount that does not contribute to the improvement of the operation efficiency of the detaching apparatus, and it is possible to improve the efficiency of the group creation.
According to the third aspect of the present invention, a group with a small number of cartridges that does not contribute to an increase in the number of VOC detachment processing cartridges in the detachment apparatus is not created, and the efficiency of group creation can be improved.
According to the invention of claim 4, when a route for collecting cartridges is created, it is determined that collection is not performed when the travel distance is longer than a preset travel distance. I can plan.
According to the fifth aspect of the present invention, since the VOC total adsorption amount, the travel distance, and the number of VOC desorption processing cartridges of each group are converted into points at the same ratio, the desorption efficiency in the VOC desorption apparatus, the conveyance in the cartridge collection It is possible to provide a collection group judgment means that equally considers the three conditions of the cost and the number of cartridges to be VOC attached / detached.
Since the VOC total adsorption amount, the travel distance, and the number of VOC desorption processing cartridges of each group are converted into scores at a ratio different from the others, the ratio of the conditions to be emphasized is set. By increasing the value, it can be a more efficient collection group judgment means.

It is a block diagram which shows the structure of a cartridge collection system. It is a flowchart which shows the process sequence of cartridge collection schedule preparation. It is explanatory drawing which shows the VOC adsorption amount of each VOC use facility in embodiment of this invention. It is a graph which shows the score table for collection schedule creation in embodiment of this invention. (A), (B), and (C) are a total adsorption amount score conversion table, a travel distance score conversion table, and a cartridge number score conversion table, respectively, in the embodiment of the present invention.

<Adsorption device>
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a VOC use facility that uses VOC. The VOC use facility 1 includes a VOC generator 2 exemplified as a cleaning device and an adsorption for adsorbing a VOC generated from the VOC generator 2. An apparatus 3 is provided, and a cartridge 5 filled with an adsorbent (activated carbon, zeolite, etc.) 4 for adsorbing the generated VOC is detachably mounted on the adsorption apparatus 3. Since the adsorbing device 3 employs a conventionally known one, its details are omitted, but the VOC mixed air generated by the VOC generating device 2 flows in through the inflow pipe 6 and adsorbs the VOC by the adsorbent 4. Then, the air in which the VOC is adsorbed is discharged to the outside air through the outflow pipe 7. Concentration sensors 8 and 9 are provided in the inflow pipe 6 and the outflow pipe 7, respectively, and the concentration sensors 8 and 9 are connected to an adsorption side terminal 10 provided in the VOC use facility 1. The concentration data measured by the concentration sensors 8 and 9 are processed by the adsorption-side terminal 10 and a server (host computer) 12 provided in the control center 11 as adsorption amount data of each cartridge 5 in the VOC use facility 1. To be sent to.

<Desorption device>
Reference numeral 13 denotes a VOC desorption / recovery facility in which a desorption / recovery device 14 for desorbing and recovering the VOC from the adsorbent 4 adsorbing the VOC is installed. The desorption / recovery device 14 is provided with a VOC desorption tank 15 capable of simultaneously mounting a plurality of VOC-adsorbed cartridges 5 so that superheated steam generated by the superheated steam generator 16 flows into the VOC desorption tank 15. It has become. A desorption monitoring sensor 18 is provided in the discharge pipe 17 through which the superheated steam discharged from the VOC desorption tank 15 passes. In this embodiment, the desorption monitoring sensor 18 employs a temperature sensor, and the temperature sensor is desorbed. When the rapid rise in gas temperature is detected, it is determined that the desorption by the VOC desorption tank 15 has been completed. The temperature data of the desorption monitoring sensor 18 is transmitted to the server 12 of the control center 11 via a desorption side terminal 19 provided in the VOC desorption collection facility 13.
Reference numeral 20 denotes a precooling condenser for precooling the superheated steam discharged from the VOC desorption tank 15, 21 denotes a condensate tank for storing the organic solvent-containing water liquefied by the precooling condenser 20, and 22 denotes the condensate. This is a low-temperature condenser for condensing the organic solvent-containing water from the tank 21 by cooling with the cooler 23 to separate the organic solvent-containing water into the organic solvent and water. In this embodiment, these devices are used to perform VOC desorption from a VOC-adsorbed cartridge, and the VOC-containing gas after desorption is cooled and separated and recovered into VOC and separated water. Since 14 is a conventionally known one, its details are omitted.

<Individual marker>
Each cartridge 5 is provided with an individual label 24 such as an identification label or an IC chip for identifying the cartridge 5, and by reading these, the individual recognition of the cartridge 5 attached to the adsorption device 3 can be performed. It can be done.

<Suction terminal>
The suction side terminal 10 reads the data of the individual marker 24, receives the density data from the density sensors 8 and 9 in the cartridge 5 identified by the data reading, and is preset based on these data. It is a network terminal that performs arithmetic processing and transmits it to the server 12 as adsorption amount data and replacement time data. Specifically, the suction side terminal 10 performs the following processing.
(1) First, it is determined that the cartridge 5 has started the adsorption process in the adsorption device 3 by reading the data of the individual mark 24 of the cartridge 5. When the input of the individual mark 24 is newly made, it is determined that the previously installed cartridge 5 has been replaced with the current cartridge 5, and data is rewritten.
(2) Next, the respective concentration data transmitted from the concentration sensors 8 and 9 of the adsorption device 3 to which the read cartridge 5 is mounted are received, and the VOC adsorption amount of the cartridge 5 based on the concentration difference between the concentration data. And the calculation result is transmitted to the server 12 as cartridge adsorption amount data.
(3) Further, it is determined whether or not the exhaust concentration of the concentration sensor 9 on the exhaust pipe side has reached a preset value (a value lower than the breakthrough value) set in advance as the replacement time. When it is determined that the cartridge 5 has been reached, the replacement time data of the cartridge 5 is transmitted to the server 12.

<Collection and delivery center>
The collection / delivery center 25 is a storage facility for various cartridges installed in the premises of the VOC desorption / recovery facility 13 or adjacent to the VOC desorption / recovery facility 13. The cartridge 5b and the reproduction cartridge 5c are stored separately. These cartridges 5 are read and stored at the collection / delivery center 25, and the individual signs 24 are read and transmitted to the center terminal 26, whereby the cartridge 5 is managed at the collection / delivery center 25. The loading / unloading data received by the center terminal 26 is always transmitted to the server 12.

<Transport vehicle>
A transport vehicle 27 for transporting the cartridge 5 is waiting at the collection / delivery center 25, and the transport vehicle 27 collects and delivers the cartridges 5 of the VOC use facility 1, the VOC desorption / recovery facility 13, and the collection / delivery center 25. It has come to be.

<Control Center>
The control center 11 manages all the cartridges 5 by the server 12 installed inside, and transmits / receives cartridge data to / from each of the VOC use facility 1, the VOC removal / recovery facility 13, and the collection / delivery center 25 through the communication network 28. And a schedule for collecting and delivering the cartridges 5 is created based on the data.
Various data files such as (1) each cartridge data file, (2) VOC use facility data file, (3) VOC removal / recovery facility data file, and (4) inter-facility route data file are registered in the server 12 in advance. The total adsorption amount score conversion table, the travel distance score conversion table, and the cartridge number score conversion table used when creating the collection schedule of the VOC adsorbed cartridge in the database unit 12a and the schedule creation unit 12e A transmission / reception unit 12c that performs transmission / reception of various cartridge data such as individual identification data, adsorption amount data, and replacement time data of the cartridge 5 between the conversion table registration unit 12b, the suction side terminal 10, the desorption side terminal 19, and the center terminal 26; Data transmitted / received by the transmission / reception unit 12c and a schedule created by the schedule creation unit 12e. Create a cartridge collection / delivery schedule based on the data update unit 12d for updating the data in the database unit 12a based on the joule data, and the cartridge data transmitted from the suction side terminal 10, the desorption side terminal 19, and the center terminal 16, A schedule creation unit 12e that creates schedules such as a delivery schedule, a collection schedule, a collection processing schedule, a loading / unloading schedule, a vehicle dispatch schedule, and the like based on the collection / delivery schedule is further provided.
Each schedule created by the schedule creation unit 12e is transmitted from the transmission / reception unit 12c to the adsorption side terminal 10, the desorption side terminal 19, and the center terminal 26, so that each VOC use facility 1, VOC desorption collection facility 13, collection and delivery The center 25 is known.

The following data files are registered in the database unit 12a in advance.
(1) Cartridge data file The cartridge data file includes an identification number of each cartridge 5, a start date of use, and history data regarding VOC adsorption at each VOC usage facility 1 (for example, the name of the VOC usage facility that has attracted in the past, History of VOC adsorption period and amount at the VOC use facility, history of the type of VOC adsorbed, etc.) and historical data on VOC desorption at the VOC desorption recovery facility 13 (for example, VOC desorption time and amount in the past desorption, desorption) The history of VOC types and the like is stored.
(2) VOC use facility data file In the VOC use facility data file, the location of each VOC use facility 1, the type of VOC (solvent type) used in the VOC use facility 1, and data related to the adsorption device 3 (for example, mounting) The number of possible cartridges 5, the number of cartridges 5 actually mounted in the adsorption process, data on the density sensors 8 and 9, and the like are stored.
(3) VOC Desorption / Recovery Facility Data File The VOC desorption / recovery facility data file contains the location of each VOC desorption / recovery facility 13 and data related to the desorption device 14 (for example, the number of cartridges 5 that can be mounted in the VOC desorption tank 15 and the desorption process). The number of cartridges 5 sometimes attached, the temperature of the superheated gas supplied from the superheated steam generator 16, the amount of VOC desorbed, the time required for the VOC desorption, the precooling condenser 20, the condensate tank 21, the low temperature A history of various devices such as the condenser 22 and the cooler 23 is stored.
(4) Inter-facility route data file The inter-facility route data file includes a route including the shortest route connecting each VOC use facility 1 and the VOC desorption / recovery facility 13, a route including the shortest route between each VOC use facility, Data relating to the inter-facility route such as the travel distance on the route is stored.
(5) Transport vehicle data file The transport vehicle data file stores data related to the transport vehicle 27, such as the number of transport vehicles 27, the maximum load capacity of each transport vehicle 27, and whether or not a VOC desorption / recovery device is installed. The

  The schedule creation unit 12e first creates a cartridge collection / delivery schedule based on the cartridge data transmitted from the suction side terminal 10, the desorption side terminal 19, and the center terminal 26 and various data registered in the database unit 12a. Based on the collection / delivery schedule, a collection schedule in the collection / delivery area is created by the following procedure.

  First, in step 1 (S1) shown in FIG. 2, the cartridge data, VOC use facility data, VOC desorption / recovery facility data, and inter-facility route data in the collection / delivery area set in advance are read from the database unit 12a and further converted into scores. While reading the total adsorption amount score conversion table, the travel distance score conversion table, and the cartridge number score conversion table registered in advance in the table registration unit 12b, the individual identification data, the adsorption amount data of the cartridge 5 received by the transmission / reception unit 12b, Read replacement time data.

  Next, in step 2 (S2), the presence / absence of the cartridge 5 determined to have reached the replacement time based on the replacement time data of the cartridge 5 transmitted from the suction side terminal 10 of the VOC use facility 1 in the collection / delivery area. If there is a corresponding cartridge 5, it is determined that the corresponding cartridge 5 is preferentially collected. If there is no corresponding cartridge 5, the most suction amount is obtained from the suction amount data of the cartridge 5 transmitted from the suction side terminal 10. A large number of cartridges 5 are selected and determined to be preferentially collected (priority cartridge determination means).

  In the present embodiment, as shown in FIG. 3, an example will be described in which there are 15 VOC use facilities 1 where the cartridge 5 absorbs VOCs in a preset delivery area D. Based on the adsorption amount data transmitted from each adsorption side terminal 10 of these VOC use facilities 1a to 1p, for example, in the facility 1a, the cartridge 5a has 30 kg of the solvent species A, and in the facility 1b, the cartridge 5b has 20 kg of the solvent species B, and the facility 1c. The cartridge 5c is 10 kg of solvent type C, the cartridge 5d is 18 kg of solvent type B in the facility 1d, the cartridge 5e is 28 kg of solvent type A in the facility 1e, the cartridge 5f is 22 kg of solvent type C in the facility 1f, and the cartridge is in the facility 1g. 5g is 5 kg of solvent species A, cartridge 5h is 20 kg of solvent species A in facility 1h, cartridge 5i is 18 kg of solvent species A in facility 1i, cartridge 5j is 15 kg of solvent species B in facility 1j, and cartridge 5k is in facility 1k. Solvent Species A is 19kg, and in the facility 1l, the cartridge 5l is There is data that 10 kg of solvent species C, cartridge 5m at facility 1m, 8 kg of solvent species A, cartridge 1n at facility 1n, 15kg of solvent species A, and cartridge 5p at 10p of facility 1p adsorbs solvent species A. Read.

  The replacement time is set to 30 kg (kilograms) of VOC adsorption, and it is determined that the cartridge 5a of the facility 1a has reached the replacement time, and it is determined that the cartridge 5a is preferentially collected. If there is no cartridge 5 that has reached, the cartridge 5a of the facility 1a having the largest VOC adsorption amount is selected from the adsorption amount data of all the cartridges 5a to 5p in the collection and delivery area, and it is determined that this is preferentially collected. Is set to

  Next, in step 3 (S3), among the cartridges 5a to 5p including the cartridge 5a determined to be preferentially collected in step 2 and adsorbing the same VOC in the collection area D, the cartridges 5a to 5p are selected. A combination of an arbitrary number of cartridges 5 selected as the limit of the number of cartridges that can be simultaneously processed by one detaching device 14 in the VOC detachment / recovery facility 13 to which 5p is to be transported is defined as one group. All groups are created in such a way that there are no 5 identical combinations (group creation means).

In the present embodiment, the cartridge 5 that adsorbs the same solvent species as the cartridge 5a determined to be preferentially collected in step 2 is mounted in the facilities 1e, 1g, 1h, 1i, 1k, 1m, 1n, 1p, respectively. Eight cartridges 5e, 5g, 5h, 5i, 5k, 5m, 5n, 5p. On the other hand, the number of cartridges that can be simultaneously processed by one desorption device 14 in the VOC desorption collection facility 13 is five. Therefore, it is only necessary to create a group of five or less cartridges including the cartridge 5a from among the eight cartridges.
Since the cartridges 5a have already been determined to be combined, the remaining four or fewer cartridges are combined as follows.
The formula for the combination is
nCr = n (n−1) (n−2) (n−r + 1) / r (r−1) (r−2)... 2 × 1... n = number of objects to be selected r = Selected number ... (Formula 1)
It is.
First, as a combination of four cartridges, when n = 8 and r = 4 are given to the above equation 1,
nCr = 8 × 7 × 6 × 5/4 × 3 × 2 × 1 = 70
There are 70 combinations.
Next, as a combination of three cartridges, when n = 8 and r = 3 are given to the above equation 1,
nCr = 8 × 7 × 6/3 × 2 × 1 = 56
There are 56 combinations.
Next, as a combination of two cartridges, when n = 8 and r = 2 are given to the above equation 1,
nCr = 8 × 7/2 × 1 = 28
There are 28 combinations.
Finally, when n = 8 and r = 1 are given to the above equation 1 as a combination of one cartridge,
nCr = 8/1 = 8
There are 8 combinations.
Summing up all of these cartridge combinations,
70 + 56 + 28 + 8 = 162
Thus, in this embodiment, there are a total of 162 combinations of any number of cartridges 5 selected as the limit of the number of cartridges that can be simultaneously processed by one desorption device 14 including the preferential collection cartridge of the solvent type A. .

  Next, in step 4 (S4), for each of the groups created in step 3, the total adsorption amount of VOCs adsorbed in each cartridge is calculated, and the higher the total adsorption amount, the higher the score. The score is converted (total adsorption amount score conversion means).

In the present embodiment, the total suction amount of the cartridges of each group is calculated for all the 162 cartridge groups created in Step 3. Then, as shown in the collection schedule creation score table shown in FIG. 4, the group A having the largest total adsorption amount has a total adsorption amount of 115 kg, and the group B having the second largest total adsorption amount has a total adsorption amount of 112 kg. The total adsorption amount of group N which is the total adsorption amount is 61 kg, and the group Y having the smallest total adsorption amount has a total adsorption amount of 35 kg.
As shown in the table of FIG. 5 (A), the total adsorption amount is a score of 10 if the total adsorption amount is 100 kg or more, a score of 9 for 90 kg to 99 kg, a score of 2 for 20 kg to 29 kg, and a score of 1 for 19 kg or less. Score conversion is performed based on the total adsorption amount score conversion table input in advance to the score conversion table registration unit 12b, and the converted score is used as the total adsorption amount score for each group. In the case of the present embodiment, the total adsorption amount score of group A and group B is 10, the total adsorption amount score of group N is 6, and the total adsorption amount of group Y, as in the collection schedule creation score table shown in FIG. The score is 3.

  Next, in step 5 (S5), when collecting all the cartridges 5 for each of the groups created in step 3, the collection route with the shortest travel distance is calculated, and the shorter the travel distance, the higher the score. The score is converted so that it becomes (travel distance score conversion means).

In the present embodiment, the shortest path when the cartridges of each group are collected is calculated based on the distance data input to the server 12 in advance for all of the 162 cartridge groups created in Step 3 above. When the travel distance on the shortest route is calculated, the travel distance of group A is 50 km, the travel distance of group B is 35 km, the travel distance of group N is 10 km, and the travel distance of group Y is 22 km.
As shown in the table of FIG. 5 (B), this mileage has a score of 1 for a mileage of 46 km or more, a score of 2 for a distance of 41 km to 45 km, a score of 8 for a distance of 11 km to 15 km, a score of 9, 5 km or less for a distance of 6 km to 10 km. The score is converted based on the travel distance score conversion table previously input to the score conversion table registration unit 12b, which is score 10, and the converted score is used as the travel distance score of each group. In the case of the present embodiment, as shown in the collection schedule creation score table shown in FIG. 4, the travel distance score of group A is 1, the travel distance score of group B is 4, the travel distance score of group N is 9, and the group Y The travel distance score for is 6.

  Next, in step 6 (S6), for each of the groups created in step 3, the score is converted such that the higher the number of cartridges in the group, the higher the score (cartridge number score conversion means).

In the present embodiment, the number of cartridges in each group is calculated for all 162 types of cartridge groups created in step 3. Then, as shown in the collection schedule creation score table shown in FIG. 4, the number of cartridges in group A and group B is 5, the number of cartridges in group N is 4, and the number of cartridges in group Y is 2.
As shown in the table of FIG. 5 (C), the number of cartridges is 5 for the number of cartridges, 10 for the number of cartridges, 8 for the number of cartridges, 6 for the number of cartridges, 6 for the number of cartridges, and 2 for the number of cartridges. The score is converted to a score based on the cartridge number score conversion table input in advance to the score conversion table registration unit 12b, where the score is 4 and the number of cartridge is 1, and the converted score is used as the number of cartridges for each group. In the case of the present embodiment, as shown in the collection schedule creation score table shown in FIG. 4, the cartridge number score for group A and group B is 10, the cartridge number score for group N is 8, and the cartridge number score for group Y is 4. It becomes.

  Next, in step 7 (S7), the total adsorption amount score, the travel distance score, and the cartridge number score are summed for each of the groups created in step 3 above.

  In the present embodiment, the total adsorption amount score, the travel distance score, and the cartridge number score are summed for all of the 162 cartridge groups created in Step 3. For Group A, the total score is 21, for Group B, the total score is 24, for Group N, the total score is 23, for Group Y, the total score is 13, and Group B is the highest total score. is there.

Finally, in step 8 (S8), it is determined that the cartridges in the group having the highest total points of the total adsorption amount score, the travel distance score, and the cartridge number score totaled in step 7 are collected (collection group determination means).
In the present embodiment, it is determined that the cartridges 5a, 5e, 5h, 5k, and 5n of the group B are collected from the 162 cartridge groups created in step 3.

In the present embodiment, all the cartridges that adsorb the same solvent species as the cartridge 5 determined to be preferentially collected in the collection / delivery area D are targeted for combination. However, the present invention is not limited to this. Cartridges that have not reached the predetermined amount set in advance may be excluded from the target of combination, and in this way, cartridges with a small VOC adsorption amount that do not contribute to the improvement of the operation efficiency of the detaching apparatus can be preliminarily created from the group creation. Can be excluded. Further, the efficiency of group creation can be improved by excluding these cartridges having the adsorption amount.
In the case of the present embodiment, when the VOC adsorption amount that is not previously targeted for combination is less than 10 kg, for example, the cartridges 5g and 5m are excluded from the targets for combination in advance.

In addition, a group in which the number of cartridges to be combined is equal to or less than a predetermined number may not be created (excluded). By doing so, the VOC in the detaching apparatus does not contribute to an increase in the number of cartridges to be detached. A group for the number of cartridges will not be created. Further, it is possible to improve the efficiency of group creation by not creating a group having a small number of cartridges.
In the case of this embodiment, when the number of cartridges in the group is 3 or more, the group Y combination is not created.

Further, it may be set so that it is determined not to collect (exclude) a group whose mileage is longer than a predetermined mileage set in advance, and in this way, it is possible to reduce the cost of transportation. .
In the case of the present embodiment, when the travel distance excluded in advance is 50 km or more, it is determined that group A is not collected, and group A does not become a collection schedule.

  It should be noted that such exclusion conditions such as exclusion of cartridges with an adsorption amount of a predetermined amount or less, exclusion of groups of cartridges with a predetermined number or less, and exclusion of groups with a predetermined travel distance or more may be set only for any of the exclusion conditions. Of course, any two or all of the exclusion conditions may be set.

Further, in the present embodiment, the converted adsorption amount score, travel distance score, and cartridge number score are all the same ratio, that is, each acquirable score (full score) is 10. However, the present invention is limited to this. Rather, it can be implemented as a different ratio.
For example, the travel distance in the present embodiment may be a perfect score of 5 instead of a maximum of 10, and in this case, the travel distance score of group A in the present embodiment is 0.5 and the travel distance score of group B Is 2, the mileage score of group N is 4.5, the mileage score of group Y is 3, and the total points are 20.5 points for group A, 22 points for group B, 18.5 points for group N, Group Y has 10 points (numbers in parentheses in FIG. 4).
Thus, the ratio of the converted score can be changed according to various conditions such as the degree of the total adsorption amount of VOC in the adsorption device 3, the travel cost when the transport vehicle 27 is traveled, and the desorption processing capability of the desorption device 14. An efficient ratio can be arbitrarily set according to the situation.
It should be noted that the numerical values such as the total adsorption amount, the travel distance, the number of cartridges and the like in the present embodiment are merely examples and are not limited to these.

  When the collection schedule for one time created in this way is created for a predetermined number of days, based on the collection schedule for the predetermined number of days, the collection processing schedule of the desorption device 14, the loading / unloading schedule of the collection / delivery center, the delivery schedule of the transport vehicle Create

In the embodiment of the present invention configured as described above, the VOC gas generated from the VOC usage facility 1 is adsorbed by the adsorbent 4 filled in the cartridge 5 and the cartridge 5 is collected to desorb and collect the adsorbed VOC. In the cartridge collection system, the collection is performed by determining the cartridge to be preferentially collected based on the adsorption amount data and the replacement timing data of the cartridge 5, and is the cartridge in the same collection area as the preferential collection cartridge and adsorbing the same VOC. As a group, a combination of an arbitrary number of cartridges that includes the replacement cartridge and that is limited to the number that can be simultaneously processed by one detaching device of the VOC detaching device 7 is included in one group. Group combinations so that there are no identical cartridge combinations Then, for each of the created groups, the total adsorption amount of the VOCs adsorbed by the cartridges of the group is calculated, and the higher the total adsorption amount, the higher the score is converted. A total collection amount score is obtained by giving the score, and for each of the groups, the collection route with the shortest travel distance is calculated for collecting all the cartridges of the group by the transport vehicle, and for the calculated collection route, Thus, a score converted so as to be higher as the mileage is shorter is given as a mileage score, and for each of the groups, the higher the number of cartridges constituting the group, the higher the score. The number of cartridges was given by giving the converted score, and the total adsorption amount score, travel distance score, and cartridge number score were summed. Since it is determined that the cartridge of the group with the highest score is collected by the collection route with the shortest travel distance, when the determined cartridge is collected and VOC is removed, the removal efficiency in the VOC removal facility is improved. In addition to being able to increase the number of cartridges to be removed, the transportation cost for collecting cartridges can be reduced, and the three conditions of removal / removal efficiency, the number of cartridges to be processed, and transportation costs can be met. It is possible to collect cartridges with high efficiency. Therefore, it is possible to provide a VOC adsorbed cartridge collection system in which the VOC desorption efficiency is increased and the number of cartridges to be desorbed is increased while reducing the collection cost as much as possible.
Further, by performing such cartridge collection, it is possible to reduce the cost related to VOC removal and removal as a whole, thereby reducing the cost burden on the VOC discharge facility operator.

  The present invention relates to a volatile organic compound recovery system for desorbing and recovering a volatile organic compound from a cartridge filled with an adsorbent that adsorbs a volatile organic compound gas generated in a facility using the volatile organic compound. It can be used in the technical field of cartridge collection systems.

1 VOC Use Facility 4 Adsorbent 5 Cartridge 13 VOC Desorption / Recovery Facility 27 Transport Vehicle

Claims (6)

Of cartridges filled with an adsorbent for adsorbing volatile organic compound gas, the adsorbent adsorbed the organic compound gas at the facility where the organic compound is used is used to remove the organic compound from the adsorbed adsorbent. In a cartridge collection system for collection in a desorption facility for desorption,
In configuring the collection system to collect a plurality of cartridges used for adsorption of the same kind of organic compound gas in a transport vehicle,
Priority cartridge determination means for preferentially collecting the cartridges that have reached the replacement time from all the cartridges in the collection area set in advance, and determining that the cartridge having the largest amount of adsorption is preferentially collected when there is no cartridge. ,
A combination of any number of cartridges including the priority cartridges and selected from a limit of the number of cartridges that can be simultaneously processed by one detaching device in the detachment facility from among all the cartridges is defined as one group. Group creation means for creating a plurality of cartridges so that there is no same combination;
For each of the created groups, the total adsorption amount of the organic compound gas adsorbed in each cartridge is calculated, and the total adsorption amount score conversion means for converting so as to increase the score as the total adsorption amount increases,
For each of the created groups, when collecting all the cartridges of the group, a collection route with the shortest travel distance is calculated, and a travel distance score conversion means for converting to a higher score as the travel distance is shorter;
For each of the created groups, a cartridge number score conversion means for converting so as to increase the score as the number of cartridges in the group increases.
An adsorbent characterized by comprising collection group determination means for totaling the total adsorption amount score, travel distance score, and cartridge number score, and determining to collect the cartridge of the group having the highest total score. Collection system for cartridges filled with.   2. The collection system for cartridges filled with an adsorbent according to claim 1, wherein the group creating means is further set so as not to include in the group cartridges having a pre-set adsorption amount or less.   3. The collection system for cartridges filled with an adsorbent according to claim 1, wherein the group creating means is further set so as not to create a group having a number of cartridges equal to or less than a preset number.   4. The adsorbent according to any one of claims 1 to 3, wherein the collection group determination means is set so as not to collect a group having a collection route longer than a preset travel distance. Collection system for filled cartridges.   The collection system for a cartridge filled with an adsorbent according to any one of claims 1 to 4, wherein the total adsorption amount score, the travel distance score, and the cartridge number score are converted at the same ratio.   5. The adsorbent according to claim 1, wherein the total adsorption amount score, the travel distance score, and the cartridge number score are converted in a ratio in which at least two of the scores are different. Cartridge collection system.

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