JP4845495B2 - LNG provision management method - Google Patents

Description

The present invention relates to a method for providing LNG to a factory or the like that uses LNG, and in particular, a bulk container (trailer type) filled with LNG without installing a fixed storage tank for storing LNG in a factory or the like that uses LNG. The present invention relates to a method for providing and managing LNG used when a LNG filled in the installed bulk container is used in the factory.

  LNG is mined in an overseas gas field, purified from combustible natural gas generated from the ground, removed impurities such as sulfur, and then cooled to minus 162 ° C and liquefied. Is widely used all over the world as an energy source.

  In Japan, it is generally used as follows. LNG refined in overseas producing countries is transported and imported by tankers, etc., and then transferred to and stored in a storage tank at the LNG shipping base. The LNG tank is transferred to a trailer-type bulk container, and the bulk container is transported to a factory or the like by a towing vehicle (transportation vehicle) and transferred again to a fixed storage tank installed therein. A vaporizer is connected to the fixed storage tank, whereby LNG is gasified and used.

  However, in order to store LNG cooled to an ultra-low temperature, a fixed storage tank having a heat insulating structure is required, and it takes a lot of cost to construct and operate a fixed storage tank in a factory or the like that uses LNG. Moreover, the operation | work which transfers LNG from a trailer type bulk container (it may only express as a "bulk container" in this specification and a claim) to a fixed storage tank is a troublesome and time-consuming thing.

Therefore, the LNG-filled trailer-type bulk container transported by the towing vehicle (transportation vehicle) is separated from the towing vehicle, and the bulk container support base and wheels are left as they are and temporarily installed at the site (such as a factory using LNG). Thus, a technique for replacing the fixed storage tank has been proposed (see, for example, Patent Document 1 and Patent Document 2).
JP 2005-48794 A JP-A-2005-75561

  According to the techniques described in Patent Documents 1 and 2 above, since a trailer type bulk container filled with LNG can be used instead of the conventional fixed storage tank, the cost required for the construction and maintenance of the fixed storage tank Can be significantly reduced, and since it is not necessary to transfer the LNG from the bulk container to the fixed storage tank, the complexity is eliminated and it is possible to efficiently use the LNG. In the case of these prior arts, in order to achieve stable and continuous use of LNG, a spare trailer type bulk container is prepared, and two trailer type bulk containers filled with LNG are arranged in a factory or the like that uses LNG ( One is connected to the vaporizer, LNG is gasified and used, and another trailer type bulk container filled with LNG is reserved for the next use) Is considered.

However, when the factory using LNG is a second-class manufacturer (processing capacity of 100 m ³ / day or less) defined by the High-Pressure Gas Safety Law, depending on the capacity of the trailer-type bulk container, as described above, If two mold bulk containers are arranged, the allowable range of the second type manufacturer may be exceeded.

  To use the trailer type bulk container instead of the conventional fixed storage tank, but to fall within the allowable range of the Type 2 manufacturer specified by the High Pressure Gas Safety Law, Place a trailer-type bulk container (filled with LNG) with a capacity that falls within the allowable range of the two manufacturers in a factory where only one LNG is used, and connect a vaporizer to this to gasify the LNG. Use it.

  However, in this case, in order to provide a stable and continuous LNG supply, the trailer that is filled with the next LNG is ensured before the LNG residual amount of the trailer type bulk container in use becomes zero. The mold bulk container needs to be delivered to the factory.

  In addition, since the number of trailer type bulk containers and the number of towing vehicles (transport vehicles) that carry them are determined, the amount of LNG remaining in the trailer type bulk containers in use, the usage status of the trailer type bulk containers, and the location , More accurately grasping information on the usage status, location, etc. of towing vehicles (transportation vehicles), and combining these, efficiently and reliably, LNG residue in trailer type bulk containers being used in factories, etc. Before the quantity reaches zero, it is necessary to deliver the next trailer type bulk container filled with LNG to the factory.

In the present invention, only one trailer type bulk container (filled with LNG) is disposed in a factory or the like that uses LNG, and a carburetor is connected to this to gasify and use LNG. Use a trailer-type bulk container instead of constructing and installing a fixed storage tank in a factory, etc., and in a state of a predetermined capacity or less, such as the allowable range of the Type 2 manufacturer specified by the High Pressure Gas Safety Law. An object of the present invention is to propose a LNG provision management method capable of performing stable and continuous LNG supply while using LNG.

  In order to achieve the above object, the present invention proposes an LNG detection device for detecting the amount of LNG used in a bulk container, and an LNG management device for managing LNG provided by the bulk container. An LNG providing management system comprising: a transmission / reception unit that transmits / receives information to / from the LNG detection device; and LNG detection information that records detection information of an LNG usage amount received by the transmission / reception unit. It has a recording database, a calculating means for calculating a usable period based on the LNG usage recorded in the LNG detection information recording database, and a display means for displaying the usable period. This is an LNG provision management system.

  The LNG detection device for detecting the amount of LNG used in the bulk container is used in the trailer type bulk container itself or a factory where the LNG provision management system of the present invention is used (that is, a factory using LNG, etc.). The amount of LNG that is deployed and filled in bulk containers, such as in a factory that uses LNG, is detected. Information on the usage amount detected by the detection device is transmitted to the LNG management device through a wired or wireless network. The LNG management apparatus records the amount of LNG used in the bulk container in the acquired factory in the LNG detection information recording database.

  The usage amount is detected and received every predetermined period, and the calculation means calculates a usable period (that is, a period until the remaining amount of LNG filled in the bulk becomes zero) from the usage amount. . For example, the calculating means calculates the daily LNG average usage amount and the LNG remaining amount in the bulk container based on the usage amount, and further calculates the usable period such as the number of days and hours that can be used from the LNG remaining amount. To do.

  By displaying the calculated usable period on the display means of the LNG management device, it is possible to arrange a transport vehicle and exchange LNG stock for replacement of the bulk container. This ensures that the next trailer-type bulk container filled with LNG is delivered to the factory in a stable and continuous manner before the LNG residue in the trailer-type bulk container in use at the factory becomes zero. LNG supply can be achieved.

  Instead of detecting the amount of use by using a detection device that grasps the remaining amount of LNG filled in the bulk container in place of the LNG detection device that detects the amount of LNG used in the bulk container. The remaining amount of LNG may be detected by the detection device, and the number of usable days may be calculated from the detected remaining amount of LNG by the calculation means.

  The LNG management apparatus may further include a warning generation unit that generates a warning when a usable period calculated by the calculation unit is equal to or shorter than a predetermined period. When the calculated usable period is equal to or shorter than a predetermined period, it is possible to call attention by issuing a warning and to more reliably arrange a replacement vehicle for the bulk container. The warning can be performed using, for example, an alarm device that appeals to hearing such as voice or a display device that appeals to vision such as a lamp.

  The LNG management device further includes a transport vehicle information database for acquiring and recording transport information of a transport vehicle from a transport company terminal provided in a transport company that transports the bulk container, and the display means includes the It is preferable to display shipping information.

  When the usable period is calculated and displayed, if the transportation information of the transportation vehicle that transports the LNG bulk container is found, it is possible to arrange transportation quickly and efficiently.

  The LNG management apparatus further includes an LNG stockpiling information database for acquiring and recording LNG stockpiling information from a shipping base terminal provided in a shipping base for stocking LNG to be filled in a bulk container, and in the display means It is preferable to display the stockpiling information.

  When factories and companies that use LNG by installing bulk containers increase, the amount of LNG used will also increase. However, if LNG stockpile information at the shipping base is known in order to stably supply LNG to these, the above-mentioned use is possible. Along with the period, it is possible to instruct stockpiling for a stable supply.

  According to the present invention, by placing only one trailer type bulk container (filled with LNG) in a factory or the like that uses LNG, and connecting a vaporizer to this to gasify and use LNG, A trailer type bulk container is used instead of constructing and installing a conventional fixed storage tank in a factory, etc., and the capacity is less than a predetermined capacity such as the allowable range of the second type manufacturer defined by the High Pressure Gas Safety Law. While being able to use LNG in a state, stable and continuous LNG supply can be performed.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a block diagram illustrating a schematic configuration of an example of the LNG provision management system of the present invention, FIG. 2 is a flowchart illustrating an example of the operation of the LNG provision management system of the present invention, and FIG. FIG. 4 shows an example of a transport vehicle information list displayed on the display means of the LNG management apparatus, and FIG. 5 shows the display means of the LNG management apparatus. It is an example of the stockpiling information list of LNG in the LNG shipping base.

  As shown in FIG. 1, the LNG provision management system 1 of the present invention controls the amount of LNG filled in a trailer-type bulk container that can be temporarily placed in a factory or the like that uses LNG. An LNG detection device 2 that detects the LNG and a LNG management device 3 that performs management by calculating the remaining amount of LNG in the bulk container and the number of usable days from the detected amount of LNG used.

  The LNG detection device 2 and the LNG management device 3 can communicate with each other via a wired or wireless network 7 such as the Internet, and are installed in a transportation company that transports bulk containers filled with LNG. The shipping company terminal 5 and the shipping base terminal 6 installed in the shipping base for shipping the stored LNG can communicate with the LNG management device 3 via the network 7.

  The LNG detection device 2 includes a detection unit 11 that detects the amount of LNG used in the bulk container, an information processing unit 12 that converts the detected usage amount into data information, and the data information that has been converted. Is transmitted / received through the communication line 7.

  In addition to transmitting data information, the transmitting / receiving means 13 also receives, for example, LNG usage amount detection command information from the LNG management device 3. Moreover, the LNG detection apparatus 2 can be configured to include various detection means and detection devices (not shown) such as pressure, temperature, and LNG remaining amount in addition to the above-described means.

  The LNG management device 3 transmits / receives various types of information including LNG usage amount detection information to / from the LNG detection device 2, and LNG detection records the LNG usage amount detection information received by the transmission / reception unit 21. Information recording database 22, calculation means 23 for calculating the remaining usable period of LNG and the like based on the amount of LNG used recorded in LNG detection information recording database 22, and the amount of LNG used and the usable period are displayed Display means 25, warning generation means 26 for generating a warning when a usable period is equal to or less than a preset period, and a transport vehicle information database 27 for recording transport information of a transport vehicle transmitted from the transport company terminal 5. LNG stockpiling information database 28 for recording LNG stockpiling information transmitted from shipping base terminal 6, and these LNG management devices 3 And a control unit 29 for controlling each unit, and the like.

  The LNG management apparatus 3 may use a dedicated machine having the functions described in this embodiment, but a storage device such as a liquid crystal display or a hard disk as a display means in a general-purpose machine such as a personal computer or a workstation. In addition, peripheral devices such as a modem may be combined to execute the functions of the above-described means under the instruction of a predetermined computer program.

  The shipping company terminal 5 and the shipping base terminal 6 are a combination of a general-purpose machine such as a personal computer and a peripheral device such as a modem, and each of them transmits and receives predetermined data such as transport vehicle information and storage information, which will be described later. Recording and management are possible.

  Hereinafter, an example of the operation of the LNG providing system 1 of the present invention will be described with reference to the flowchart of FIG.

  As shown in FIG. 2, the detecting means 11 of the LNG detecting device 2 detects the amount of LNG used in the bulk container, and the information processing means 12 converts the detected analog information into digital information. Is transmitted from the transmission / reception means 13 to the transmission / reception means 21 of the LNG management device 3 via the communication line 7, and the control means 29 records it in the LNG detection information database 22 (S1).

  The amount of LNG used is detected at a predetermined interval. As will be described later, the calculation means 23 calculates the usable period from the average usage amount and the remaining LNG based on the detection result, so that the accuracy is improved. Therefore, it is preferable to detect at a predetermined time every day.

  After the amount of LNG used is detected every predetermined period and recorded in the LNG detection information database 22, the average amount of LNG used (per day, per hour, etc.) and the amount of LNG remaining based on this recorded information. In addition, the number of usable days with this remaining amount, the next scheduled delivery date of the LNG filled bulk container, and the like are calculated (S2). This calculation result is also recorded in the LNG detection information database 22.

  It is determined whether or not the LNG remaining amount based on the calculation result is equal to or less than a predetermined quantity (S3), and if it is equal to or less than the predetermined quantity, a warning is generated by the warning generation means 26 of the LNG management device 3. (S4).

  The warning generating means 26 may be any of auditory sounds such as sound, and visual sounds such as warning lamps, and both can be used.

  In the above description, it is determined whether or not the remaining amount is a preset remaining amount. However, the remaining amount may be determined based on whether or not the available period is less than or equal to a predetermined period.

  After the determination of the remaining amount of LNG, transport vehicle information is acquired from the transport company terminal 5 and recorded in the transport vehicle information database 27, and LNG storage information is acquired from the shipping base terminal 6, and the LNG storage information database 28 is acquired. (S5).

  Note that the acquisition of information and the recording in the database can be appropriately performed without being limited to the determination based on the LNG remaining amount.

  Each information recorded in the LNG detection information database 22, the transport vehicle information database 27, and the LNG storage information database 28 is displayed on the display means 25 of the LNG management apparatus 3 by the control means 29 (S6).

  Fig. 3 shows a list of LNG information, such as the amount of LNG used and the number of days that can be used, displayed on the display means. The total amount of LNG in the bulk for each user (each factory using LNG, etc.) The date, the detected amount of LNG used and the date and time of detection, the calculated average amount of use per day, the amount of LNG remaining, the number of usable days, the next scheduled date of delivery, etc. are described.

  The detail column in FIG. 4 displays, for example, information such as the operation route of each vehicle, a mobile phone number for contact, and a driver name, and is transmitted from the shipping company terminal 5 to the LNG management device 3 in real time. So you can get in touch with the latest transportation vehicle information.

  As a result, not only the LNG usage status of each user (each factory using LNG, etc.) but also the next delivery date of the LNG bulk container can be predicted, so refer to the transport vehicle information and the LNG stockpile information described above for transportation. Vehicle arrangements can be prepared.

  Further, when the remaining amount of LNG or the number of usable days is extremely small, a warning is generated, so that stable supply of LNG does not hinder even if the display means is not constantly monitored.

  That is, in the past, the detected usage of LNG was generally used for calculating charges, but in the present invention, the remaining amount and average usage are further calculated, and the usable period is also calculated. ing. On this basis, referring to the transportation vehicle information and the LNG stocking information described above, before the LNG residual amount of the bulk container in use at each user (each factory using LNG, etc.) becomes zero, the LNG The next filled bulk container can be reliably delivered to each user (each factory using LNG, etc.), and stable and continuous LNG supply can be efficiently performed.

  That is, since transport vehicle information is also displayed as shown in FIG. 4, vehicle arrangement is efficient, and in the case of an emergency, information for each vehicle can be grasped, so that it is possible to respond quickly.

  In addition, as shown in FIG. 5, since the LNG stockpile information of the shipping base transmitted from the shipping base terminal 6 is displayed on the display means 25, the LNG stockpile additional arrangement can be quickly made, and the LNG can be stably supplied. Can contribute.

  As described above, according to the present invention, the amount of LNG remaining and the number of usable days are detected by detecting the amount of LNG used in a bulk container that is arranged at each user (each factory using LNG, etc.) and is using LNG. By calculating, the next delivery date of the replacement bulk container can be grasped, and by referring to the transport vehicle information and the LNG stockpile information described above, the LNG and the transport vehicle can be arranged in advance corresponding to the next delivery date. Can do. Therefore, by installing only one trailer-type bulk container (filled with LNG) in a factory that uses LNG and connecting it to a vaporizer, the LNG is gasified and used. Instead of constructing and installing the LNG in the factory, etc., and using the trailer type bulk container, and the LNG in a state below the predetermined capacity as permissible range of the second class manufacturer specified by the High Pressure Gas Safety Law A stable and continuous LNG supply can be made while being usable.

The block block diagram explaining an example of a structure outline | summary of the LNG provision management system of this invention. The flowchart showing an example of operation | movement of the LNG provision management system of this invention. The figure showing an example of one column of LNG information, such as the usage-amount of LNG displayed on the display means of an LNG management apparatus, and the number of days which can be used. The figure showing an example of the transportation vehicle information one column displayed on the display means of an LNG management apparatus. The figure showing an example of the stockpiling information list of LNG in the LNG shipping base displayed on the display means of an LNG management apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 LNG provision management system 2 LNG detection apparatus 3 LNG management apparatus 5 Transportation company terminal 6 Shipment base terminal 7 Communication line 11 Detection means 21 Transmission / reception means 22 LNG detection information database 23 Calculation means 25 Display means

Claims (2)

Connect the vaporizer to a trailer-type bulk container that has a capacity less than the allowable range of the second class manufacturer specified by the High Pressure Gas Safety Law, and place the LNG in the bulk container. LNG provision management method for gasifying and providing
And LNG detector for detecting for each interval are predetermined usage of the LNG that is filled in the trailer-type bulk container disposed at said user,
Based on the LNG usage acquired from the LNG detection device, information is transmitted to and received from the LNG detection device, the average usage of LNG, the remaining amount of LNG, and the number of LNG usable days in this remaining amount, and , Calculating the next scheduled delivery date of the bulk container with a capacity less than the allowable range of the second class manufacturer specified by the High Pressure Gas Safety Act, which is filled with LNG,
The next scheduled delivery date calculated,
Transportation information of the transportation vehicle obtained by transmitting and receiving information to and from a transportation company terminal provided in a transportation company that transports the bulk container for replacement filled with LNG by transportation vehicle;
An LNG management device that displays on a display means LNG stocking information obtained by transmitting / receiving information to / from a shipping base terminal provided at a shipping base stockpiling LNG to be filled in the bulk container. Using the provision management system,
Displaying the calculated next scheduled delivery date on the display means for grasping the next delivery date of the bulk container for replacement;
Displaying the acquired transport information of the transport vehicle and the acquired storage information of the LNG on the display means for arranging the LNG corresponding to the delivery time and arranging the transport vehicle;
LNG provision management method, characterized in that control is performed so that there is only one trailer-type bulk container filled with LNG arranged at the user .   2. The LNG provision management according to claim 1, wherein a warning is issued from the LNG management device when the remaining amount of LNG calculated by the LNG management device or the number of LNG usable days is equal to or less than a predetermined value. Method.

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