JP2009262940A - Unloading system for tank lorry - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an unloading system for a tank lorry which is capable of recognizing that an unloading hose is connected to a fuel feeding port of an underground tank, and preventing any damage of a data reader for reading tank information. <P>SOLUTION: Tank information transmitting means 28-30 for transmitting the tank information are provided on outer peripheries of the fuel feeding ports 24-26. An adapter side connector member 110, an antenna holding member 120, and a signal wire 112 for electrically connecting the adapter side connector member 110 and the antenna holding member 120 are mounted on the outer side of an adapter 70 in a closely fitting manner. An unloading hose 16 is connected to the adapter 70, and a hose side connector 105 is connected to the adapter side connector member 110 of the adapter 70 to transmit/receive the tank information of the fuel feeding port 24 with the unloading hose 16 being connected thereto. An on-vehicle computer of a tank lorry is capable of recognize that the unloading hose 16 is connected to the fuel feeding port 24. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a tanker truck unloading system, and in particular, confirms that the type of fuel loaded in the tank truck's hatch matches the type of fuel in the tank being unloaded, and starts unloading the fuel. The present invention relates to a tanker truck unloading system.

  As a delivery means for delivering oil liquid from an oil tank station to a gas station or the like, a tank truck is generally used.

  The tank of the tank truck is divided into a plurality of hatches. Each hatch has gasoline according to the order of the delivery destination, for example, gasoline for the first hatch, light oil for the second hatch, and kerosene for the third hatch. It is possible to load different types of liquid oil for each hatch.

  The tank truck is loaded with the liquid type and quantity ordered from the fuel supply station at the oil tank station. At that time, the driver of the tank truck loads oil into each hatch on the basis of a slip on which a delivery destination, liquid type, quantity, hatch number to be loaded, and the like are written. When the driver arrives at the fuel supply station, the driver checks the delivery destination, liquid type, quantity, and hatch number on the slip, and also checks the liquid type in the underground tank and unloads it to the underground tank at the fuel supply station. .

  However, when the oil solution is unloaded at the fuel supply station by the method as described above, there is a possibility that the driver may mistakenly read the information on the slip. For this reason, there has been a possibility of unloading light oil in an underground tank to which gasoline is unloaded due to human error. In this way, if you accidentally recognize the liquid type loaded in the tank truck's hatch and unload it to the underground tank of the fuel supply station without noticing it, a mixed accident (contamination) of different liquid types will occur in the underground tank. It will occur.

In order to prevent such an accident of mixing different liquid species in an underground tank, for example, a wireless tag (tank information transmitting means) storing liquid type data is provided at the fuel supply port of the underground tank, and the unloading hose side There is an unloading system for a tank truck equipped with a data reader (tank information receiving means) for reading liquid type data transmitted from a wireless tag (see, for example, Patent Document 1). In Patent Document 1, when the liquid type data of the underground tank read by the data reader matches the liquid type data of the hatch to be unloaded, unloading from the designated hatch is permitted and unloading is performed. Be started.
JP 2007-84135 A

  Here, the unloading hose and the fuel supply port of the underground tank cannot be connected due to the difference in the diameter of the unloading hose and the fuel supply port of the underground tank or the problem of the location of the fuel supply port at the fuel supply station. Or connection may be difficult). In this case, in order to connect (or easily connect) the unloading hose and the fuel supply port of the underground tank, the unloading hose and the fuel supply port of the underground tank are connected using an adapter. Will be connected.

  However, if the unloading hose is connected to the fuel supply port of the underground tank using an adapter, the distance between the data reader provided on the unloading hose and the wireless tag provided on the fuel supply port will increase. As a result, there is a problem that the liquid type data transmitted from the wireless tag cannot be read by the data reader.

  In view of the above circumstances, an object of the present invention is to provide a tank truck unloading system that solves the above-described problems.

  In order to solve the above problems, the present invention has the following means.

  The present invention according to claim 1 is provided at a fuel supply port used when unloading fuel from a tank, stores information relating to the tank as tank information, and receives the data request signal. Is transmitted to the tank information transmission means, and is provided in a tank truck for storing fuel for unloading the tank. The tank information transmission means transmits a data request signal to the tank information transmission means. Tank information receiving means for receiving the tank information transmitted from the tank, when unloading the fuel loaded in the tank truck to the fuel supply port of the tank via the unloading hose, When it is determined that the tank information of the tank of the fuel supply port to which the tip of the unloading hose is connected and the tank information and the fuel information have a predetermined relationship, the tank In an unloading system for a tank truck that permits unloading to the tank, a signal line wired in the longitudinal direction of the unloading hose, a hose-side connector provided at the tip of the signal line, and fuel in the tank at one end An adapter provided with a first connection part connected to the supply port and provided with a second connection part connected to the unloading hose at the other end, and installed in the vicinity of the first connection part of the adapter And an antenna for transmitting and receiving to and from the tank information transmitting means, and an adapter-side connector installed in the vicinity of the second connection portion of the adapter, and the unloading hose is connected to the fuel supply port via the adapter. The first connection part is connected to a fuel supply port, the unloading hose is connected to the second connection part, the hose connector is connected to the adapter connector, The tank information transmitted from the tank information transmitting means is received by the antenna of the adapter, and is received by the tank information receiving means via the adapter side connector, the hose side connector, and the signal line. Is a solution.

  According to a second aspect of the present invention, an antenna is provided at an end portion of the unloading hose, and when the unloading hose is connected to a fuel supply port of the tank, the unloading hose is provided at an end portion of the unloading hose. The hose connector is connected to the antenna, and tank information transmitted from the tank information transmitting means is received by the antenna of the unloading hose and received by the tank information receiving means via the signal line. This solves the above-mentioned problem.

  According to the present invention, tank information can be accurately recognized even when an unloading hose is connected to an adapter, an accident of mixing different liquid species (contamination) due to unloading can be prevented, and unloading can be performed. Work reliability can be increased. Furthermore, tank information can be read when the connection between the tank truck and the adapter is completed by the unloading hose, so the tank information receiving means has read the tank information and the connection work of the unloading hose is normal. It becomes possible to confirm what has been done.

  In addition, according to the present invention, by connecting the hose side connector of the signal line to the antenna provided on the unloading hose, the unloading hose can be directly connected to the fuel supply port of the tank without using an adapter. Even when the unloading hose is performed, the unloading hose is connected to the fuel supply port, and the tank information transmitted from the tank information transmitting means of the fuel supply port is also received by the antenna provided on the unloading hose, and the unloading hose signal is received. Since it can be transmitted to the tank truck side via the line, it becomes possible to accurately recognize the tank information, and it is possible to prevent different liquid mixture accidents (contamination) due to unloading. In addition, tank information can be read by completing the connection between the tank truck and the fuel supply port using the unloading hose. Therefore, even when no adapter is used, the tank information receiving means has read the tank information. It is possible to confirm that the hose connection work has been normally performed.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a configuration diagram showing an outline of a fuel supply station to which an embodiment of a tank truck unloading system according to the present invention is applied. FIG. 2 is a view showing the unloading work as seen from the rear of the tank truck. In FIG. 1 and FIG. 2, the adapter 70 (shown in FIG. 3) to which the unloading hose is connected is omitted.

  As shown in FIGS. 1 and 2, the unloading system 10 includes a liquid type detection unit that detects a liquid type that is a type of fuel stored in the underground tanks 21 to 23 of the fuel supply station, and a tank truck 12. If it can be confirmed that the liquid type loaded in the tank and the liquid type stored in the underground tanks 21 to 23 of the fuel supply station match, and the liquid type matches, And unloading permission means for allowing unloading to the tank and starting unloading.

  For example, the types of fuel stored in the underground tanks 21 to 23 are different, and are determined in advance, such as regular gasoline in the underground tank 21, high-octane gasoline in the underground tank 22, and light oil in the underground tank 23. Yes. On the other hand, the type of liquid loaded in each hatch of the tank truck 12 is not determined, and the quantity ordered when loading is allocated according to the hatch capacity, so it is loaded in each hatch. The liquid type may be different each time.

  When the tank truck 12 arrives at the fuel supply station, the driver (operator) connects one end of the unloading hoses 16 and 18 to the fuel outlets (discharge ports) 44 and 46 provided at the bottom of the hatch, and unloads the tank truck. The other ends of the hoses 16 and 18 are connected to the fuel supply ports 24 to 26 of the underground tanks 21 to 23.

  On the outer periphery of the fuel supply ports 24 to 26, tank information transmitting means 28 to 30 formed in an annular shape are provided. The tank information transmitting units 28 to 30 include, for example, a wireless tag that wirelessly transmits tank information corresponding to the liquid type of fuel stored in each underground tank 21 to 23 in response to an external request signal.

  The tank lorry vehicle 12 is provided with tank information receiving means (data readers) 32 and 33 for reading the liquid type data transmitted from the tank information transmitting means 28 to 30 via a signal transmission path to be described later.

  The tank information receiving means 32 and 33 have a control unit that executes a communication program on the substrate so that data communication with the tank information transmitting means 28 to 30 can be performed, and vibration during traveling of the tank truck 12 does not propagate. Thus, it is housed in an anti-vibration case having a vibration-proof structure. In this embodiment, the tank information receiving means 32 and 33 are housed in an anti-vibration case or the like having a vibration-proof structure. However, the present invention is not limited to this. May be.

  In the vicinity of the fuel delivery ports 44 and 46 of the tank truck 12, an antenna member 106 that transmits and receives radio signals is provided in the vicinity of the antenna member 100 provided at one end of the unloading hoses 16 and 18. The antenna member 106 is connected to the tank information receiving means 32 via a signal line 108. Further, tank information transmitting means 28 to 30 are provided at the upper end connection portions of the fuel supply ports 24 to 26.

  Therefore, the liquid type data transmitted from the tank information transmitting means 28-30 does not interfere even in a place where the plurality of fuel supply ports 24-26 are arranged in parallel, and the unloading hose among the fuel supply ports 24-26. Only the tank information transmitting means of the fuel supply port to which 16 and 18 are connected can transmit the liquid type data.

  The liquid type data of the fuel supply ports 24 to 26 read by the tank information receiving means 32 and 33 are transferred to the in-vehicle unloading computer 34 and inputted. The unloading computer 34 of the tank lorry vehicle 12 matches the liquid type data (tank information) input from the tank information receiving means 32 and 33 with the load information of the tank lorry vehicle 12 (hatch liquid type to be unloaded). When doing so, permits the unloading of the fluid loaded in the hatch.

  The underground tanks 21 to 23 are provided with a liquid level sensor 36 for measuring the liquid level in order to calculate the amount of oil stored in each tank. The signal output from the liquid level sensor 36 is transferred to the unloading computer 34 of the tank truck 12 via the liquid level gauge 38.

  The tank truck 12 includes a tank 40 that is partitioned into a plurality of hatches 40a to 40e. A plurality of types of fluids are loaded in the plurality of hatches 40a to 40e according to the order of the delivery destination. For example, the first, second hatches 40a, 40b have gasoline, the third, fourth hatches. Each liquid type is loaded in 40c, 40d, such as light oil, and the fifth hatch 40e, such as kerosene.

  At the bottoms of the hatches 40a to 40e, bottom opening / closing valves 42a to 42e that are controlled to be opened and closed by the unloading computer 34 when the oil liquid loaded in the hatches 40a to 40e is unloaded are provided. The first and second bottom opening / closing valves 42a and 42b arranged on the front side (driver's seat side) among the bottom opening / closing valves 42a to 42e are connected in parallel to the first fuel delivery port 44. The third to fifth bottom opening / closing valves 42c to 42e disposed on the rear side of the bottom opening / closing valves 42a to 42e are connected in parallel to the second fuel delivery port 46.

  Furthermore, a first solenoid valve 48 and a second solenoid valve 50 are disposed on the upstream side pipelines of the first fuel delivery port 44 and the second fuel delivery port 46, respectively. In the driver's seat of the tank lorry vehicle 12, the above-described onboard unloading computer 34 is provided. Then, this unloading computer 34 outputs a valve opening signal when the liquid type of the hatch to be unloaded and the liquid type of the underground tank to be unloaded coincide with each other, and to the hatch among the bottom opening / closing valves 42a to 42e. Unloading is started by opening the corresponding bottom opening / closing valve and the first solenoid valve 48 or the second solenoid valve 50. In this embodiment, the bottom opening / closing valves 42a to 42e, the first solenoid valve 48, and the second solenoid valve 50 are all configured to open based on a valve opening signal from the unloading computer 34. The first solenoid valve 48 and the second solenoid valve 50 may be manually opened / closed valves, and these valves may be manually opened.

  FIG. 3 is an enlarged view of the unloading hose 16. In addition, since the unloading hoses 16 and 18 are the same structures, the structure of one unloading hose 16 is demonstrated below.

  As shown in FIG. 3, the unloading hose 16 includes a flexible hose 170, a tank truck-side connection fitting 180 provided at one end of the hose 170, and a fuel provided at the other end of the hose 170. And a connection fitting 190 on the supply port side.

  The tank lorry vehicle side fitting 180 includes an insertion portion 182 into which the insertion portion 44a of the fuel delivery port 44 provided in the tank lorry vehicle 12 is inserted, and a fuel delivery port coupling lever 184 for locking the fuel delivery port 44. In addition, one antenna member 100 is fixed to the outer periphery of the insertion portion 182.

  The connection fitting 190 on the fuel supply port side has an insertion portion 192 to be inserted into the adapter 70 (see FIG. 4), and the antenna holding member 102 is attached to the outer periphery of the base portion of the insertion portion 192 by the fastening fitting 103. ing. The antenna holding member 102 has an antenna member 102a that performs transmission and reception with the tank information transmitting means 28 provided at the fuel supply port 24 when the adapter 70 is not used. The antenna member 102a transmits and receives a radio signal by weak radio waves. The antenna members 100 and 102a are made of, for example, flat members in which an antenna pattern and a control circuit for transmitting and receiving signals are formed on a printed circuit board. The tank information receiving means 32 and 33 and the tank information transmitting means 28 to A signal transmission path for transmitting and receiving signals exchanged with 30 is formed. The antenna member 100 is electrically connected to one end of a signal line 104 disposed along the outside of the unloading hoses 16 and 18.

  A hose connector 105 is provided at the other end of the signal line 104. The hose connector 105 is connected to the connector 102b of the antenna holding member 102 attached to the outer periphery of the other ends of the unloading hoses 16 and 18. When connecting the unloading hose 16 to the adapter 70, the hose connector 105 is pulled out from the connector 102 b of the antenna member 102 and then connected to the adapter connector 110 as will be described later.

  Therefore, the unloading hose 16 forms a liquid feed passage for communicating between the fuel delivery port 44 and the fuel supply ports 24-26 of the tank truck 12 and is transmitted from the tank information transmission means 28-30. A signal transmission path for transmitting the tank information data to the tank information receiving means 32 and 33 mounted on the tank truck 12 is formed.

  In this way, the tank information transmitted from the tank information transmitting means 28-30 of the underground tanks 20-23 is transmitted to the tank information receiving means 32 on the tank lorry vehicle side away from the underground tanks 20-23, and a different liquid type mixing accident occurs. This makes it possible to improve the reliability of the system. Therefore, since the tank information receiving means 32 is not provided in the unloading hose 16, for example, the tank information receiving means 32 is brought into contact with the adapter 70 or the like at the time of connecting the unloading hose 16 or is damaged. It is possible to prevent the unloading hose 16 from coming into contact with the inner wall of the hose storage portion and being damaged during traveling. Furthermore, since tank information can be read when the connection between the tank truck 12 and the fuel supply ports 24 to 26 is completed by the unloading hose 16, the tank information receiving means 32 has read the tank information. It is possible to confirm that the connection work of the hose 16 has been normally performed.

  In the above description, the case where one unloading hose 16 is connected has been described. However, when the other unloading hose 18 is connected, the tank information receiving means 33 and the tank information transmitting means 28 to 30 are similarly connected. Communication between the two becomes possible.

  When the driver performs the connecting operation of connecting the other ends of the unloading hoses 16 and 18 to the fuel supply ports 24 to 26, the antenna member 100 provided at one end of the unloading hoses 16 and 18 is connected to the tank truck 12 side. Tank information transmitting means 28 provided at the upper end connection portion of the fuel supply ports 24 to 26 is provided with an antenna member 102 provided at the other end of the unloading hoses 16 and 18 in proximity to a communicable distance to the antenna member 106. It is close to a communicable distance with respect to ˜30.

  Therefore, the tank information receiving means 32 and 33 are connected to the tanks of the fuel supply ports 24 to 26 connected through the signal transmission path including the antenna members 100, 102 and 106 and the signal lines 104 and 108. A request signal for requesting liquid type data (type data) is transmitted to the information transmitting means 28-30. For example, when the other end of the unloading hose 16 is connected to the fuel supply port 24, the liquid type data request signal is transmitted from the tank information receiving unit 32 to the tank information transmitting unit 28 provided in the fuel supply port 24. .

  When the shapes of the fuel supply ports 24 to 26 are different depending on the fuel supply station, or the ends of the unloading hoses 16 and 18 may not reach the fuel supply ports 24 to 26 due to the rigidity of the unloading hoses 16 and 18. In that case, since the unloading hoses 16, 18 cannot be directly connected to the fuel supply ports 24-26, one end (lower end) of the adapter 70 is connected to the fuel supply ports 24-26 as shown in FIG. The unloading hoses 16 and 18 are connected to the other end (upper end) of the adapter 70.

  Next, the configuration of the fuel supply ports 24 to 26 and the adapter 70 will be described. Since the fuel supply ports 24 to 26 have the same configuration, the configuration of the fuel supply port 24 will be described below. FIG. 4 is a view showing an operation of connecting the adapter 70 to the fuel supply port 24. FIG. 5 is a view showing a state in which the adapter 70 is completely connected to the fuel supply port 24.

  As shown in FIGS. 4 and 5, the fuel supply port 24 is raised from a concrete layer covering the ground of the fuel supply station, and an annular tank information transmitting means 28 is provided on the outer periphery thereof. ing.

  Here, in the drawings after FIG. 4, when the fuel supply port 24 and the unloading hose 16 cannot be directly connected, both members are coupled via the adapter 70. Therefore, first, the adapter 70 will be described, and then the configuration of the fuel supply port 24 will be described. The adapter 70 is used when the hose connection port and the fuel supply port 24 cannot be connected because the shape of the hose connection port of the unloading hose 16 and the fuel supply port 24 do not match. The tank lorry vehicle 12 is provided. Therefore, when the shapes of the hose connection port and the fuel supply port 24 match, the fuel supply port 24 and the unloading hose 16 may be directly connected.

  FIG. 5 is a side view showing the configuration of the adapter 70. As shown in FIG. 5, the adapter 70 is formed by a pipe line bent in a square shape, and the antenna holding member 120 that transmits and receives data by the radio signal with the tank information transmission unit 28 on the outer periphery of the lower end side connection portion 72. Are attached by fastening brackets 121 and 122.

  Since this antenna holding member 120 can transmit and receive radio waves to the lower side, it is possible to perform data transmission by radio signals with the annular tank information transmitting means 28 disposed on the outer periphery of the fuel supply port 24.

  The upper end connection portion 76 of the adapter 70 is provided with a hose coupling portion lever 78 to which the other end of the unloading hose 16 is connected. The adapter side connector member 110 is fastened to the outer periphery of the upper end connection portion 76 by a fastening bracket 111. It is attached. The adapter-side connector member 110 is electrically connected to the hose-side connector 105 provided at the tip of the signal line 104 of the unloading hose 16. The adapter side connector 110 has an explosion-proof structure.

  Furthermore, a signal line 112 that electrically connects between the adapter-side connector member 110 and the antenna holding member 120 is mounted outside the adapter 70 so as to be in close contact therewith. Therefore, by connecting the unloading hose 16 to the adapter 70 and connecting the hose-side connector 105 to the adapter-side connector member 110, tank information of the fuel supply port 24 to which the unloading hose 16 is connected is transmitted and received. The in-vehicle computer 34 of the car 12 can recognize that the unloading hose 16 is connected to the fuel supply port 24, and whether the type of the underground tank 21 and the hatch type of the tank truck 12 match. It becomes possible to determine whether or not.

  Here, the mounting structure of the antenna holding member 120 will be described. 6A is a cross-sectional view taken along the line AA in FIG. 6B is a cross-sectional view taken along line BB in FIG. 6C is a cross-sectional view taken along the line CC in FIG. 6D is a cross-sectional view taken along the line DD in FIG.

  As shown in FIGS. 5 and 6A, the antenna holding member 120 has an upper end fastened to the outer periphery of the adapter 70 by a fastening fitting 121. The fastening bracket 121 includes a U-shaped bolt 121a, an antenna holding member 121b coupled to both ends of the U-shaped bolt 121a, and nuts 121c screwed to both ends of the U-shaped bolt 121a.

  An antenna member 124 mounted on a circular substrate is provided at the lower end of the antenna holding member 120. The antenna member 124 is held so as to face the upper surface of the tank information transmitting means 28 attached around the fuel supply port 24. The antenna holding member 120 is formed by filling an elastic resin material 125 inside a case formed in a cylindrical shape, and mounting the antenna member 124 on the lower surface of the resin material 125. The antenna member 124 and the resin material 125 are attached so that vibrations from the outside are buffered.

  As shown in FIGS. 5 and 6B, the lower end side connection portion 72 is provided with a coupling operation lever 74 for coupling to the upper end connection portion 60 of the fuel supply port 24. In the coupling operation lever 74, the operation portion 74 a is rotated in the vertical direction, and the opposite fulcrum 74 b that is a rotation fulcrum is connected to the outer periphery of the adapter 70. The antenna holding member 120 is formed with a recess 126 so as not to contact the fulcrum 74b so as not to obstruct the rotation operation of the coupling operation lever 74.

  As shown in FIGS. 5 and 6C, the antenna holding member 120 has a lower end fastened to the outer periphery of the adapter 70 by a fastening belt 122. The antenna holding member 120 is held at a position protruding outward from the outer periphery of the lower end of the adapter 70.

  As shown in FIGS. 5 and 6D, the tank information transmitting means 28 attached around the fuel supply port 24 has an antenna 28b formed on the entire upper surface of a ring-shaped substrate 28a, and the antenna 28b. The wireless tag 28c is embedded in. The wireless tag 28c is data communication means in which an antenna for transmitting and receiving signals to and from the IC chip is formed on the same substrate.

  The tank information transmitting means 28 is supported in a horizontal state by a pair of brackets 128 extending in the radial direction from the outer periphery of the fuel supply port 24, and is provided concentrically with the fuel supply port 24. As a result, a part of the antenna 28b of the tank information transmitting means 28 faces the antenna member 124 held on the lower surface of the antenna holding member 120 at a communicable distance.

  Therefore, the tank information transmitting unit 28 can transmit and receive with the antenna member 124 even when the wireless tag 28 c is not opposed to the antenna member 124, and the data request signal from the tank information receiving unit 32 mounted on the tank truck 12. Is received from the antenna member 124 on the lower surface of the antenna holding member 120, a tank information radio signal including liquid type data registered in advance can be transmitted to the antenna member 124.

  FIG. 7 is an enlarged view of the fuel delivery port 44 of the tank truck 12. As shown in FIG. 7, the fuel delivery port 44 of the tank truck 12 has an insertion portion 44a that is inserted into the connection fitting of the unloading hose 16, and the outer periphery of the root portion of the insertion portion 44a has the antenna described above. A member 106 is provided. The tank information receiving means 32 and 33 mounted on the tank truck 12 are housed in a vibration isolation case 160 and connected to the antenna member 106 through the signal line 108.

  Here, the operation in the case where the oil liquid loaded in the tank truck 12 is connected to the underground tank 21 by connecting the unloading hose 16 will be described.

  FIG. 8 is a view showing a state where the unloading hose 16 is connected after the adapter 70 is connected to the fuel supply port 24. As shown in FIG. 8, the driver of the tank truck 12 first inserts the insertion portion 182 of the connection fitting 180 of the unloading hose 16 into the insertion portion 44 a of the fuel delivery port 44 of the tank truck 12, and in this inserted state, The fuel delivery port coupling portion lever 184 is rotated to the locking position. As a result, the connection fitting 180 of the unloading hose 16 is coupled to the fuel delivery port 44 and is held at a relative position where the hose side antenna member 100 and the tank truck vehicle side antenna member 106 can communicate.

  Subsequently, the adapter 70 is connected to the fuel supply port 24, and the connection fitting 190 of the unloading hose 16 is connected to the upper end connection portion 76 of the adapter 70. That is, the insertion portion 192 of the connection fitting 190 is inserted into the upper end connection portion 76, and in this insertion state, the hose coupling portion lever 78 of the adapter 70 is rotated to lock the connection fitting 190. Thereby, the connection fitting 190 of the unloading hose 16 is coupled to the fuel supply port 24 via the adapter 70.

  Subsequently, after the hose connector 105 of the signal line 104 of the unloading hose 16 is pulled out from the connector 102 b of the antenna member 102, it is connected to the adapter connector 110 of the adapter 70.

  Thus, after the connection work of the unloading hose 16 and the hose side connector 105 and the adapter side connector 110 is completed, the driver turns on the unloading start switch installed in the tank lorry vehicle 12 to load the tank lorry vehicle 12. The unloading of the filled oil is started.

  In the above description, one connection fitting 180 of the unloading hose 16 is connected first, and then the other connection fitting 190 is connected. However, in the reverse order, that is, the connection fitting 190 is connected. It is also possible to connect first and then connect one of the connection fittings 180.

  Next, the unloading control process executed by the unloading computer 34 of the tank truck 12 after the unloading hose is connected will be described with reference to the flowchart of FIG.

  As shown in FIG. 9, the operator turns on the power switch of the unloading computer 34 before starting unloading. As a result, the unloading computer 34 is activated and transmits a tank information request signal from the tank information receiving means 32 to the tank information transmitting means 28. This tank information request signal is transmitted through the transmission path including the signal line 108, antenna members 106 and 100, signal line 104, hose side connector 105, adapter side connector 110, signal line 112, and antenna holding member 120 described above. It is transmitted to the transmission means 28.

  Upon receiving the tank information request signal transmitted from the tank information receiving means 32, the tank information transmitting means 28 transmits the tank information (including liquid type information and tank number) of the underground tank 21 to the tank information request signal described above. It transmits to the tank information receiving means 32 via a path | route (S11).

  In next S12, it is checked whether or not the tank information receiving means 32 has received the tank information from the tank information transmitting means 28 before unloading. In S12, when the tank information receiving means 32 does not receive the tank information from the tank information transmitting means 28 (in the case of NO), the process proceeds to S13, where it is recognized that the unloading hose 16 is not connected, and an alarm is issued. The hose is not connected to the person (S14).

  In S12, when the tank information receiving unit 32 receives tank information from the tank information transmitting unit 28 (in the case of YES), the process proceeds to S15 and obtained from the tank information from the tank information transmitting unit 28. It is verified whether or not the liquid type matches the liquid type of the hatch unloaded from the tank truck 12.

  In S15, when the liquid type obtained from the tank information from the tank information transmission means 28 matches the liquid type of the hatch unloaded from the tank truck 12 (in the case of YES), the process proceeds to S16 and the tank truck 12 Among the bottom opening / closing valves 42a to 42e, the first electromagnetic valve 48, and the second electromagnetic valve 50 mounted on the bottom, the bottom opening / closing valve corresponding to the hatch to be unloaded and the electromagnetic valve are opened. Thus, the unloading of the oil liquid loaded on the tank truck 12 is started. In S15, when the liquid type obtained from the tank information from the tank information transmission means 28 and the liquid type of the hatch unloaded from the tank truck 12 do not match (in the case of NO), the process proceeds to S17 and an alarm is issued. Do not unload. Thereby, the accident of mixing different liquid species in the underground tank 21 can be prevented.

  In next S18, it is checked whether or not the tank information receiving means 32 receives tank information from the tank information transmitting means 28 during unloading. In S18, when the tank information receiving means 32 receives the tank information from the tank information transmitting means 28 (in the case of YES), it is detected that unloading is in progress and the processing of S18 is repeated, and the tank information receiving means 32 is repeated. When it is detected that tank information is not received from the tank information transmitting means 28 (in the case of NO), it is detected that unloading has been completed (S19), and the bottom opening / closing valve opened in S17 described above Then, the solenoid valve is closed (S20). Then, the process proceeds to S21, the end of unloading is displayed for a predetermined time, and the process ends. Here, in this embodiment, when the unloading is completed, the tank information receiving means 32 has stopped receiving tank information from the tank information transmitting means 28, that is, the operator removes the unloading hose 16 from the fuel supply port 24. Although the end of unloading is detected by detecting that the load has been detected, the method of detecting unloading is not limited to this. For example, the liquid level data of the liquid level gauge 38 provided in the underground tank 21 When no change occurs, this is detected and it is determined that the unloading has been completed, and the completion of the unloading is notified. Thereafter, the tank information receiving unit 32 no longer receives the tank information from the tank information transmitting unit 28. That is, when it is detected that the operator has removed the unloading hose 16 from the fuel supply port 24, the process of S15 is performed by shifting to the above-described process of S12 to prepare for the next unloading. May be informed of the hose is not connected in the transition S15 to.

  Thus, one end of the unloading hose 16 is connected to the fuel delivery port 44 of the tank truck 12 and the other end of the unloading hose 16 is connected to the adapter 70 of the fuel supply port 24 (or directly connected to the fuel supply port 24). At the same time, by connecting the hose connector 105 to the adapter connector 110, the liquid type information of the fuel supply port 24 can be transmitted to the tank information receiving means 32, so the unloading computer 34 unloads from the tank truck 12. It becomes possible to confirm that the liquid type matches the liquid type in the underground tank 21. At the same time, the unloading computer 34 recognizes that the connection work of the unloading hose 16 has been correctly performed by the tank information receiving unit 32 receiving the tank information transmitted from the tank information transmitting unit 28. be able to.

  Here, an unloading method when the adapter 70 is not used will be described. Of course, when the adapter 70 is not used, it is not necessary to attach or remove the adapter 70 during unloading.

  FIG. 10 is a diagram showing an unloading method in which the unloading hose 16 is directly connected to the fuel supply port 24. As shown in FIG. 10, in the unloading method without using the adapter 70, a hose coupling portion lever 78 to which the other end of the unloading hose 16 is connected to the upper end connection portion 60 of the fuel supply port 24 is provided. . The hose side connector 105 of the signal line 104 is connected to the connector 102b of the antenna holding member 102 attached to the other end side of the unloading hose 16.

  As a result, the connecting bracket 190 of the unloading hose 16 is directly fitted to the upper end connection portion 60 of the fuel supply port 24 and the hose coupling portion lever 78 is rotated to connect both members, and the unloading hose 16 is also connected. The antenna member 102a of the antenna holding member 102 and the tank information transmitting means 28 of the fuel supply port 24 are held at a relative position where communication is possible.

  Therefore, when the data reader 32 completes the connection work of the unloading hose 16, the data reader 32 establishes a signal transmission path including the antenna member 100, the signal line 104, the hose side connector 105, the connector 102b of the antenna holding member 102, and the antenna member 102a. A request signal for requesting liquid type data (type data) is transmitted to the tank information transmitting means 28 to 30 of the fuel supply port connected to the fuel supply ports 24 to 26. On the other hand, when the tank information transmitting means 28-30 receives the data request signal from the tank information receiving means 32, the tank information transmitting means 28-30 transmits a tank information radio signal including liquid type data registered in advance to the antenna member 102a, The information is transmitted to the tank information receiving means 32 via the signal transmission path.

  Thereby, similarly to the case where the adapter 70 is used, the tank information receiving means 32 can be prevented from being damaged, and the tank information transmitted from the tank information transmitting means 28 to 30 of the underground tanks 20 to 23 is changed to the underground tank 20. It is possible to improve the reliability of the system which prevents the accident of mixing different liquid species by transmitting to the tank information receiving means 32 on the tank lorry vehicle side away from ˜23. Furthermore, since tank information can be read when the connection between the tank truck 12 and the fuel supply ports 24 to 26 is completed by the unloading hose 16, the tank information receiving means 32 has read the tank information. It is possible to confirm that the connection work of the hose 16 has been normally performed.

  In the description of the unloading method without using the adapter 70, the case where one unloading hose 16 is connected has been described. However, when the other unloading hose 18 is connected, the tank information receiving means 33 and Communication with the tank information transmitting means 28 to 30 becomes possible.

  In the above embodiment, the case where the fuel loaded in the hatch of the tank truck is unloaded to the underground tank of the fuel supply station has been described as an example. Of course, the present invention can also be applied to this case.

  Of course, the present invention can also be applied to unloading liquid fuels other than oil such as gasoline and light oil shown in the above embodiments.

  In the above embodiment, the configuration in which the wireless tag as the tank information transmitting means is arranged on the outer periphery of the fuel supply port is given as an example. However, there is a configuration in which tank information transmitting means other than the wireless tag is provided in the fuel supply port. Of course, it is included in the present invention.

It is a block diagram which shows the outline of the fuel supply station to which one Example of the unloading system of the tank lorry car which becomes this invention was applied. It is a figure which shows the unloading work seen from the rear part of a tank truck. It is a figure which expands and shows the unloading hose. 4 is a side view showing a state where an adapter 70 is connected to a fuel supply port 24. FIG. It is a figure which shows the state which completed the connection of the adapter 70 to the fuel supply port. It is a cross-sectional view which follows the AA line in FIG. FIG. 6 is a transverse sectional view taken along line BB in FIG. 5. FIG. 6 is a transverse sectional view taken along the line CC in FIG. 5. FIG. 6 is a transverse sectional view taken along line DD in FIG. 5. FIG. 2 is an enlarged view showing a fuel delivery port 44 of the tank truck 12. It is a figure which shows the state which connected the unloading hose 16 after connecting the adapter 70 to the fuel supply port 24. FIG. It is a flowchart for demonstrating the control processing which the unloading computer 34 performs. It is a figure which shows the unloading method which connects the unloading hose 16 directly to the fuel supply port.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Unloading system 21-23 Underground tank 16, 18 Unloading hose 24-26 Fuel supply port 28-30 Tank information transmission means 44, 46 Fuel delivery port 32, 33 Tank information receiving means 34 Unloading computer 38 Liquid level gauge 40 Tank 44 First fuel outlet 46 Second fuel outlet 48 First solenoid valve 50 Second solenoid valve 70 Adapter 76 Upper end connection portion 78 Hose coupling levers 100, 102a, 106, 124 Antenna member 102 Antenna holding Member 102b Connector 105 Hose side connector 110 Adapter side connector 120 Antenna holding member 104, 108, 112 Signal line 130 Storage box 160 Anti-vibration case 180, 190, 190A Connection fitting

Claims (2)

Tank information transmitting means provided at a fuel supply port used when unloading fuel from a tank, storing information about the tank as tank information, and transmitting the tank information wirelessly when a data request signal is received When,
Tank information provided in a tank truck for storing fuel for unloading the tank, transmitting a data request signal to the tank information transmitting means, and receiving tank information transmitted from the tank information transmitting means Receiving means;
Have
When unloading the fuel loaded in the tank truck to the fuel supply port of the tank via the unloading hose, tank information of the tank of the fuel supply port to which the tip of the unloading hose is connected; In a tanker truck unloading system that permits unloading to the tank when it is determined that the tank information and the fuel information have a predetermined relationship,
A signal line wired in the longitudinal direction of the unloading hose;
A hose-side connector provided at the tip of the signal line;
An adapter provided at one end with a first connection connected to the fuel supply port of the tank and provided with a second connection connected at the other end to the unloading hose;
An antenna that is installed in the vicinity of the first connection portion of the adapter and performs transmission and reception with the tank information transmission means;
An adapter-side connector installed in the vicinity of the second connection portion of the adapter;
Have
When the unloading hose is connected to the fuel supply port via the adapter, the first connection portion is connected to the fuel supply port, the unloading hose is connected to the second connection portion, and the hose side Connect the connector to the adapter side connector,
Tank information transmitted from the tank information transmitting means is received by the antenna of the adapter, and is received by the tank information receiving means via the adapter side connector, the hose side connector, and the signal line. An unloading system for tank trucks. When an antenna is provided at the end of the unloading hose and the unloading hose is connected to the fuel supply port of the tank, the hose connector is connected to the antenna provided at the end of the unloading hose,
2. The tank truck according to claim 1, wherein the tank information transmitted from the tank information transmitting unit is received by an antenna of the unloading hose and is received by the tank information receiving unit via the signal line. Car unloading system.

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