JPS6323079B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for preventing mix-up of discharged liquids from a multi-chamber tank that individually accommodates and transports different types of liquids.

[Conventional technology]

BACKGROUND ART Discharging work from a multi-chamber tank, in which different types of liquids such as gasoline, kerosene, and light oil are stored and transported individually in each chamber, has conventionally been carried out as follows. As shown in FIG. 1, when the type of liquid to be discharged is kerosene, for example, the operator must first check the display board 2 on the top or side of the multi-chamber tank 3 to see if the kerosene is in the second chamber 3.
After confirming that the kerosene is stored in the chamber 3B, the operating handle 4B provided on the chamber 3B is operated to open the bottom valve 5B, which opens and closes the kerosene, thereby discharging the kerosene.

[Problem that the invention seeks to solve]

However, if workers sometimes misunderstand or operate the control handle in another chamber containing a different type of liquid than the desired one, mistakes can occur, such as when discharging diesel oil into a kerosene tank at a gas station. . In addition, when loading a multi-chamber tank at a liquid storage base where various liquids are stored, if a worker mistakenly loads each chamber with a liquid type that is different from what is written on the display board, the operator may Therefore, even if the discharge operation is performed correctly, there is a drawback that the type of liquid to be discharged may not be the desired type.

By the way, Japanese Patent Application Laid-Open No. 58-52091 describes a device that takes in information about the type of liquid loaded into a tank truck, distinguishes and displays the type of liquid, and prevents oil from being mixed with the types of liquids stored in a multi-chamber tank. has been done. According to the device, the above-mentioned problems can be solved to some extent. When discharging liquid, it detects the type of liquid stored in the destination tank, and if the type of liquid does not match, the locking device that restricts the opening of the bottom valve is prevented from being released. . However, in loading work into multi-chamber tanks at liquid storage bases that store various liquids, such an operation cannot be achieved, and a device that can handle the types of liquids to be loaded is desired.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to avoid misunderstandings and erroneous operations by operators when discharging a desired liquid type from each chamber. An object of the present invention is to provide a device for preventing mix-up of discharged liquids in a multi-chamber tank, which can load and discharge liquids without mixing up liquid types with one device.

[Means for solving problems]

The present invention provides a multi-chamber tank for transportation in which each chamber individually housing different types of liquids has its own bottom valve and is provided with independent drain pipes for loading and discharging liquids. It is applied and its characteristics are as follows: The current-carrying bodies 12A to 12C for liquid type discrimination provided corresponding to each chamber of the multi-chamber tank for transportation are connected to each liquid type tank at the liquid storage base and each stand at the destination. energization detection means 13 for detecting connection of one of the energizing terminals 23a to 23c, which are provided corresponding to the tanks and differing depending on the liquid type; and a multi-chamber tank for transportation from the liquid type tank of the storage base. loading liquid type discriminating means 14 for determining the type of liquid to be loaded into each chamber based on a signal indicating which liquid type is about to be loaded from the energization detection means; Discharged liquid type discrimination that determines the type of liquid to be discharged into a stand tank based on a signal indicating which liquid type is about to be discharged from an energization detection means 13 connected to an energization terminal provided in the stand tank. means 15; loading and discharging switching means 1 for switching the operation of the loading liquid type determining means and the discharged liquid type determining means;
6, loaded liquid type storage means 17 for storing the type of liquid loaded in each chamber of the multi-chamber tank based on the signal of the loaded liquid type determination means; and liquid loaded in each chamber. loading liquid type display means 18 for displaying the type of liquid to be discharged into the stand tank based on a signal from the discharge liquid type determining means; The liquid type display means 19 is also provided.

[Operation and effects of the invention]

According to the present invention, when loading liquid from a storage tank to a multi-chamber tank, confusion of liquid types can be avoided;
The liquid type is then displayed for each tank. In addition, when discharging liquid from the multi-chamber tank to a stand tank at the destination, the loading and discharging switching means operate the same device differently, making it possible to display the type of liquid and avoiding confusion of the type of discharged liquid. be done. At that time, from the multi-chamber tank to the stand tank being transported,
The bottom valve to be opened by the operator to discharge a desired liquid type can be confirmed by the loaded liquid type display means and the discharged liquid type display means. Therefore, it is possible to avoid misunderstandings and erroneous operations by the operator when discharging a desired liquid type from each chamber, and there is no confusion in the types of liquid to be loaded into each chamber during loading work. Furthermore, loading and discharging liquid can be carried out simultaneously in each chamber, improving work efficiency. In addition, the work can be carried out only from the ground, without having to climb up to the multi-chamber tank as in the past. Safety can be ensured.

〔Example〕

Hereinafter, the present invention will be explained in detail based on examples thereof. FIGS. 1 and 2 show a relay circuit 10 of an apparatus for preventing mix-up of discharged liquids according to the present invention. In addition, in the explanation of each configuration below, those having the same function such as the bottom valve in each chamber of the multi-chamber tank 3 will be referred to as the first one.
The same subscripts A, B, and C are attached to each chamber, the second chamber, and the third chamber to distinguish them.

The present invention provides a vehicle 11 on which a multi-chamber tank 3 is mounted.
(See Fig. 4), and the liquid is connected to each liquid type tank at the liquid storage base and each stand tank at the destination via the liquid type discrimination current conducting body 12 shown in Fig. 2. An energization detection means 13 detects that one of the energization terminals, which differs depending on the species, is connected, and determines the type of liquid to be loaded into each chamber of the multi-chamber transport tank 3 from the liquid type tank at the storage base. A loading liquid type determining means 14, a discharged liquid type determining means 15 for determining the type of liquid to be discharged from the multi-chamber tank 3 into a stand tank at a transportation destination, and the loading liquid type determining means 14 and the discharged liquid type determining means 15. A loading/discharging switching means 16 for switching the operation, and a loading liquid type discriminating means 1 for determining the type of liquid loaded in each chamber of the multi-chamber tank.
Loading liquid type storage means 17 that stores information based on the signal of No. 4, and loading liquid type display shown in FIG. means 18, and discharged liquid type display means 19 that displays the type of liquid to be discharged into the stand tank based on the signal from the discharged liquid type discrimination means 15.
This is its main structure.

The loading liquid type discriminating means 14 determines which liquid type is loaded from the liquid type tank at the storage base into each chamber of the transportation multi-chamber tank, and which liquid type is loaded from the energization detection means 13. This is determined by a signal indicating whether the Further, the discharged liquid type discriminating means 15 determines the type of liquid to be discharged from the multi-chamber tank to the stand tank at the destination of transportation by using the energizing terminals 23a to 23c [fifth
The determination is made based on a signal indicating which type of liquid is about to be discharged from the energization detection means 13 connected to the energization detector 13 (see Figures a to c).

To be more specific, the liquid type discrimination current conducting body 12 is individually provided corresponding to each chamber of the multi-chamber tank 3, and for example, as shown in FIG. It consists of current-carrying bodies 12A to 12C for liquid type discrimination provided in the vicinity of 20a to 20c. These are individually attached to, for example, the tips of loading arms 22a to 22c provided for each liquid type tank 21a to 21c of the storage base 21 (see Fig. 4) that stores large quantities of different liquid types. energizing terminals 23a to 23c, and discharge hoses 25a of stand tanks 24a to 24c of the destination gas station 24 (see FIG. 7).
~ 25c, individually attached energizing terminal 2 at the tip
6a to 26c as appropriate.

As shown in FIG. 5a, the current-carrying bodies 12A to 12C for determining liquid type have contacts t1 to t4 of the same shape, and the current-carrying terminals 23a to 23c on the liquid type tank side, which can be connected to any of these, are , each tank has a contact point that conducts at a different position as shown in FIG.
6c is similar to the current-carrying terminals 23a to 23c except for a contact 36, which will be described later, as typically shown in FIG. Then, the energization detection means 1
3 is the above-mentioned current carrying body 12A to 12C for determining each liquid type.
Relay R that is connected to each contact and operates when energized
1 to R3, R4 to R6, and R7 to R9 (see Figure 2), and determines which chamber of the multi-chamber tank 3 is to be loaded with liquid from which type of tank, and which tank of the gas station. This detects whether the liquid is being drained. In other words, each liquid type tank of the storage base 21 and each stand tank of the gas station 24 always contain a predetermined liquid type, so one energizing terminal on the liquid type tank or stand tank side When connected to any one of the liquid type discrimination current carrying bodies 12 on the tank 3 side, the type of liquid to be loaded into that chamber and the type of liquid to be discharged into the stand tank are determined, and the corresponding Any one of the relays R1 to R9 is activated, and the type of liquid to be loaded or discharged can be determined by a loaded liquid type determining means 14 and a discharged liquid type determining means 15, which will be described below.

The loaded liquid type determination means 14 is the energization detection means 1.
Normally open contacts r operated by relays R1 to R9 of 3
1 to r9 and the relay R10 connected to each
~R18, and determines which chamber of the multi-chamber tank 3 is to be loaded with liquid from which liquid type tank.

The discharge liquid type discriminating means 15 is connected to the energization detecting means 1.
Normally open contacts r operated by relays R1 to R9 of 3
1 to r9 and the relay R19 connected to each
~R27, and determines which chamber of the multi-chamber tank 3 is to be loaded with liquid from which kind of liquid tank.

The loading/discharging switching means 16 is switched to avoid simultaneous operation of the loaded liquid type determining means 14 and the discharged liquid type determining means 15, and in this embodiment, for example, the liquid type determining current carrying body 12A to
12C, and the energizing terminal 2
Contacts t energized by contacts 36 of 3a to 23c
1, t6 switching current carrying bodies 27A to 27C
and relay R, which is activated by energizing these contacts.
28 to R30, and a normally open contact r2 interposed in the loading liquid type discriminating means 14 which is connected by these.
8 to r30 and discharging liquid type determination means 1
5 and normally closed contacts r28 to r30.

The loading liquid type storage means 17 stores the type of liquid to be loaded and the chamber in which it is stored in response to a signal from the loading liquid type determining means 14, and is provided in the loading liquid type determining means 14. relay R1
Relays R31 to R39 which are operated by the combined normally open contacts and normally closed contacts r10 to r18 which are operated by 0 to R18, and a self-holding circuit consisting of the normally open contacts r31 to r39 which maintain the operation of these relays. It is provided. That is, the liquid type and storage chamber determined by the loading liquid type determining means 14 are stored in self-maintained relays R31 to R39,
At the same time, these operations cause the loaded liquid type display means 18 to output the same signal as the stored signal.

The loading liquid type display means 18 lights up a corresponding lamp in order to let the operator confirm what kind of liquid is stored in each chamber of the multi-chamber tank 3. That is, the loading liquid type storage means 17
Normally open contact r3 operated by relays R31 to R39
1 to r39, the lamps PL1 to PL9 of the display 28 shown in FIG. 6a are turned on. It goes without saying that as long as the relays R31 to R39 are self-held, the lighting of the lamp is maintained.

The discharge liquid type display means 19 displays a corresponding lamp in order to allow the operator to confirm which type of liquid the stand tank containing is connected to the discharge ports 20A to 20C of each chamber of the multi-chamber tank 3. It lights up. That is, normally open contacts r19 to r27 operated by relays R19 to R27 of the discharged liquid type discriminating means 15 cause the lamps PL11 to PL19 of the display 28 to be lit. By the way, the loading liquid type display means 1 mentioned above
8 and the display on the discharge liquid type display means 19 are as follows:
In addition to lighting a lamp as described above, it may also be displayed using characters, colors, or the like.

As shown in FIG. 3, the bottom valves 5A to 5C of each chamber of the multi-chamber tank 3 are provided with operating handles 4A to 4C for independently opening each of the bottom valves.
This allows each bottom valve 5A-5C to be opened individually during loading and unloading via push-pull cables 29A-29C and bell cranks 30A-30C.

According to the configuration described above, the liquids in each chamber of the multi-chamber tank can be discharged without being mixed up in the following manner. First, the loading operation into the multi-chamber tank 3 at the storage base 21 will be described.

As shown in FIG. 4, the vehicle 11 carrying the multi-chamber tank 3 is placed next to the loading rack 31 of the storage base 21. Then, the worker next to the loading rack 31 opens the bottom valve of the first chamber of the multi-chamber tank 3 using the operating handle, and connects the tip of the multi-jointed loading arm 22a to the outlet 20A of the exhaust pipe 32A. do. Then, connect the energizing terminal 23a attached to the loading arm 22a to the exhaust port 20 of the first chamber.
It is connected to a current-carrying body 12A for liquid type discrimination provided near A. Note that this connection work may be performed using a liquid type identification current-carrying body (not shown) that is centrally arranged at a location different from the vicinity of the discharge port 20A, for example, on the bottom side of the multi-chamber tank 3; If this is done at the time of connecting the loading arm 22a to the multi-chamber tank 3, the time and effort required for connection will be reduced and connection errors can be avoided. In addition, the operator does not have to climb up to the multi-chamber tank 3 as in the conventional case, and can work more easily from the ground.

Incidentally, when loading and discharging flammable liquids, accidents may occur due to static electricity, and to prevent this, grounding is provided as required by the Fire Service Act. This connects the ground wire 33 provided on the vehicle 11 to the ground port 3 provided on the loading rack 31.
This is done by connecting to 4. in this case,
Instead of the ground wire 33, as shown in FIGS. 5a to 5c, if a ground terminal t5 is built into each of the liquid type discrimination current carrying bodies 12A to 12C and a ground wire 35 is built into the current carrying terminals 23a to 23c, the ground Wire connection work and current-carrying body connection work can be performed at the same time, and current-carrying connections can be made with the same number of steps as conventionally required.

In this way, the contacts t1 and t2 of the current-carrying body 12A for determining the liquid type are electrically connected by the current-carrying terminal 23a, and the relay R1 of the current-carrying detection means 13 is activated by the power supplied from the power source of the vehicle 11 via the contact t1. At the same time, the contacts t1 and t6 of the loading/discharging switching means 16 are also brought into conduction by the contact 36 in the current-carrying terminal 23a, and the relay R28 thereof is activated in the same manner. As a result, the normally open contacts r1 and r28 interposed in the loaded liquid type determining means 14 are opened, and the relay R10 is activated to load the liquid type in the liquid type tank 21a, for example, gasoline, into the first chamber 3A. It is determined that Note that at this time, the normally closed contact r28 interposed in the discharge liquid type discriminating means 15 is disconnected, so the relays R19 to R21 do not operate.

As a result, the normally open contact r10 of the loaded liquid type storage means 17 becomes open. However, the current carrying body 1 for liquid type discrimination
Contact points t1 and t3 and t1 and t4 at 2A
Relay R does not operate because it is not connected.
Relays R1 and R12 do not operate due to the normally open contacts r2 and r3 of the loaded liquid type determining means 14, which are maintained disconnected by R2 and R3. As a result, the normally closed contacts r11 and r12 of the loaded liquid type storage means 17 remain open, and the normally closed contacts r11 and r12 remain disconnected, so that relay R31 of relays R31 to R33
only works. The relay R31 is self-retained by the normally open contact r31 which becomes conductive when the relay R31 is operated, and after the loading is completed, the current-carrying body 12A for liquid type determination, the current-carrying body 27A for switching, and the current-carrying terminal 23a are disconnected. However, even after that, the loaded liquid type and its storage chamber are memorized.

Furthermore, since the normally open contact r31 of the loaded liquid type display means 18 is opened by this relay R31, the lamp PL1 lights up, indicating that gasoline is loaded in the corresponding part of the display 28, that is, the first chamber 3A. is displayed.

The work of loading gasoline in the liquid type tank 21a into the first chamber 3A from the loading arm 22a by the operator is carried out by the operation handle 4A via the push-pull cable 29A and bell crank 30A shown in FIG. After opening the bottom valve 5A, the fourth
This is done by remotely driving the loading pump 38a of the liquid type tank 21a by operating a pump drive switch 37a attached to the loading arm 22a shown in the figure. To finish loading, the operator turns off the pump drive switch 37a, or measures the previously set loading amount with a flowmeter (not shown), and automatically stops the loading using a shutoff valve or the like.

Similar to the above-mentioned loading operation, from the other liquid type tank 21b of the storage base 21 to the first chamber 3A of the multi-chamber tank 3
When loading kerosene, connect the connected energizing terminal 23
b, the contacts t1 and t3 of the current carrying body 12A for liquid type discrimination are electrically connected, and the relay R2 of the energization detection means 13 is connected.
is activated, whereby the loaded liquid type determining means 14
relay R11 is activated. In the same manner as described above, the normally open contact r11 of the loaded liquid type storage means 17 becomes open, so the relay R32 is activated. The species and containment chamber are remembered.
In addition, the normally open contact r32 of the loaded liquid type display means 18
The lamp PL2 is turned on because it is also connected. In this way, one liquid type selected by the operator can be loaded into one chamber, and it can be stored and displayed.

Similarly, the liquid type tank 21a of the storage base 21
When loading gasoline into another chamber of the multi-chamber tank 3, for example, the second chamber 3B, open the exhaust port 20B of that chamber.
The loading arm 22a is connected to the energizing terminal 23a, which is connected at the same time, so that the contacts t1 and t2 of the liquid type discrimination current-carrying body 12B are electrically connected, and the relay R is connected to the loading arm 22a.
4 is activated. In the same way as described above, the normally open contact r13 of the loaded liquid type storage means 17 becomes open and the relay R34 is activated. The species and its containment chamber are remembered. Further, since the normally open contact r34 of the loaded liquid type display means 18 is also opened, the lamp PL4 is lit.

Similarly, liquid can be loaded one after another into a desired chamber of the multi-chamber tank 3 from each liquid type tank of the storage base 21, and these are stored and displayed in the loaded liquid type storage means 17 and display means 18. . Therefore, as a special case, it is possible to load the same type of liquid into all the chambers of the multi-chamber tank 3 without any problem. In such loading work, the current carrying bodies 12A to 12C and the discharge pipe 32 for determining the liquid type are
Since A to 32C are provided independently in each chamber of the multi-chamber tank 3, liquid can be loaded into all the chambers at the same time in the storage base 21, and the loading time to all the chambers can be shortened. .

In this way, when the liquid in each liquid type tank of the storage base 21 is loaded into each chamber of the multi-chamber tank 3 of the vehicle, erroneous operation etc. during the loading operation can be prevented.
The desired liquid type can be loaded into the desired chamber using only ground work. When the predetermined liquid type is stored in each chamber, the storage in the loaded liquid type storage means 17 and the lighting of the predetermined lamp on the display 28 are continued until the destination of transportation, for example, a gas station.

When discharging a desired type of liquid from the multi-chamber tank 3 loaded with various types of liquid into a stand tank such as a gas station, connect the discharge hose 25c as shown in Fig. 7, and turn on electricity for liquid type discrimination. body 1
Connect the energizing terminal 26c of the stand tank 24c to, for example, 12A of the stand tank 24c. Contacts t1 and t4 are only electrically connected by the energizing terminal 26c shown in FIG. Relay R28 does not operate. Therefore, the normally open contact r28 interposed in the loading liquid type determining means 14 is maintained in the disconnected state, and the normally closed contact r28 interposed in the discharged liquid type determining means 15 is maintained in the disconnected state.
will remain in its current state. As a result, the relay R21 of the discharged liquid type discriminating means 15 is activated, thereby making the normally open contact r2 of the discharged liquid type display means 19 open.
1 lights up the lamp PL13. That is,
It is displayed on the display 28 that the relay R21 has connected the multi-chamber tank 3 and the stand tank 29c, which is a light oil tank of the gas station 24.

When light oil, kerosene, and gasoline were loaded in the order of chambers 1 to 3 of the multi-chamber tank 3, it was confirmed that the lamp PL3 in the same room as the lamp PL13 that was lit on the display 28 was lit. Thereafter, the bottom valve 5A is opened using the aforementioned operating handle, and the discharge source valve 39A is opened to discharge light oil of the desired liquid type to the stand tank 24c via the discharge hose 25c. In the above-mentioned confirmation process, if the liquid type of the lamps lit in the same room is different, for example, gasoline is loaded in the first chamber and the lamp is lit.
If PL1 is lit, gasoline will be discharged into the light oil tank, so the operator only has to reconnect the discharge hose 25c and the energizing terminal 26c to the chamber in which light oil is loaded. In this way, by confirming that the lamps of the same liquid type in the same room on the display body 28 are lit, it is possible to avoid discharging liquid types mixed up. A multi-chamber tank 3 having such independent discharge pipes 32A to 32C
In this case, work can be done simultaneously in each chamber not only during loading but also during unloading, and all work can be done on the ground, which has the advantage of further improving work efficiency.

Liquid type tanks and stand tank energizing terminals 23a to 2 connected to switching energizing bodies 27A to 27C of the loading/discharging switching means 16, which are connected together with the above-mentioned liquid type discrimination energizing bodies 12A to 12C.
3c, 26a to 26c, the presence or absence of the contact 36 may be reversed. At that time, the loaded liquid type determination means 14
The normally open contact r of the loading/discharging switching means interposed in
28 to r30 as normally closed contacts, discharge liquid type discrimination means 1
The normally closed contacts r28 to r30 interposed in 5 may be replaced with normally open contacts.

In place of such a loading/discharging switching means 16, a manual loading/discharging switching means 40 is provided as shown in FIG. 8, and this is attached to a display body 41 as shown in FIG. By switching, the operation of the loading liquid type determining means 14 and the operation of the discharged liquid type determining means 15 will not be confused.

The above-mentioned current-carrying bodies 12A to 12B for determining liquid type may be replaced with a circuit 42 as shown in FIG. 9. That is, resistors Ra, Rb, and Rc are interposed for each different liquid type in the energizing terminals 23a to 23c provided in each liquid type tank of the storage base 21 and the energizing terminals 26a to 26c provided in the stand tank. The contact point of the current-carrying body 12 (only 12A shown in the figure) for determining the liquid type in No. 3 is arranged in series with the resistor Ro, and a switch 43 is interposed between the relays R1 to R3 to switch the circuit depending on the difference in voltage generated at point Q. . According to this circuit 42, the current-carrying terminals 23a and 2
Different voltages for 6a, 23b and 26b, 23c and 26c Va={Ro/(Ro+Ra)}・Vo Vb={Ro/(Ro+Rb)}・Vo Vc={Ro/(Ro+Rc)}・Vo is at point Q The switch 43, which switches according to these voltages, switches the relays R1 to R3 to be energized.
Select. The subsequent operations are no different from those described above. According to such an energizing circuit 42, each liquid type discriminating energizing body 12A to 1 connected to the energizing terminal
2C does not require many conductors as mentioned above,
For example, it is possible to use a shielded wire 44 with a single core wire, and there is an advantage that the connecting wire for the long current-carrying body 12 can be made with a thin wire.

Although the above embodiments have been described using three types of liquid as examples, it goes without saying that the present invention can be applied to all cases where two or more types of liquids are handled in a multi-chamber tank with two or more chambers. In addition, each operation was explained using a relay circuit, but instead of such a relay circuit, a digital circuit such as a gate circuit or a flip-flop can be used.
ICs can also be used.

As described above, according to this example, when loading liquid from a storage tank to a multi-chamber tank, confusion of the liquid type can be avoided, and the liquid type can be displayed for each tank. In addition, when discharging liquid from the multi-chamber tank to a stand tank at the destination, the loading and discharging switching means operate the same device differently, making it possible to display the type of liquid and preventing confusion of the type of discharged liquid. You can check as follows. Therefore, it is possible to avoid misunderstandings and erroneous operations by the operator when discharging a desired liquid type from each chamber, and there is no confusion in the types of liquid to be loaded into each chamber during loading work.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a conventional multi-chamber tank containing different liquids, Fig. 2 1 and 2 are relay circuit diagrams applied to the discharged liquid mix-up prevention device of the present invention, and Fig. 3 is a multi-chamber tank of the present invention. A sectional view of the tank, Figure 4 is a diagram of the state of loading into a multi-chamber tank at the storage base, Figure 5a
- d are examples of current-carrying bodies and current-carrying terminals for determining liquid type, Figures 6a and b are examples of display bodies, Figure 7 is a diagram of the state of discharge from a multi-chamber tank to a stand tank at a gas station, and Figure 8 The figure shows an embodiment of a relay circuit using different loading/discharging switching means, and FIG. 9 shows another embodiment of a current-carrying body for liquid type discrimination and a current-carrying terminal. 3...Multi-chamber tank, 3A~3C...Each chamber, 5A~5
C... Bottom valve, 12, 12A to 12c... Current carrying body for liquid type discrimination, 13... Energization detection means, 14... Loaded liquid type discrimination means, 15... Discharged liquid type discrimination means, 16, 40...
Loading/discharging switching means, 17...Loading liquid type storage means, 18...Loading liquid type displaying means, 19...Discharging liquid type displaying means, 21...Storage base, 21a-21c...Liquid type tank, 23a-23c, 26a-26c... Energizing terminal, 24a to 24c...Stand tank, 32
A~32C...Exhaust pipe.

Claims (1)

[Claims] 1. Each chamber individually housing different types of liquid,
In a multi-chamber tank for transportation, each having its own bottom valve and an independent drain pipe used for loading and discharging liquid, An energizing device that detects that one of the energizing terminals that differ depending on the liquid type provided for each liquid type tank at the liquid storage base and each stand tank at the destination is connected to the energizing body for type discrimination. a detection means, and a signal indicating which liquid type is to be loaded from the liquid type tank of the storage base into each chamber of the transport multi-chamber tank, from the energization detection means; A loading liquid type discriminating means for discriminating the type of liquid to be discharged from the multi-chamber tank to a stand tank as a destination for transportation, and which one of the liquid types from the energization detection means connected to the energization terminal provided on the stand tank is selected. A discharge liquid type discriminating means for discriminating based on a signal indicating whether the liquid is about to be discharged, a loading/discharging switching means for switching the operation of the loading liquid type discriminating means and the discharge liquid type discriminating means, and each chamber of the multi-chamber tank. loading liquid type storage means for storing the type of liquid loaded in each chamber based on a signal from the loading liquid type determining means; a loading liquid type display means for displaying the type of liquid to be discharged into the stand tank based on the signal; and a discharge liquid type display means for displaying the type of liquid to be discharged into the stand tank based on the signal from the discharge liquid type determining means, The loading liquid type display means and the discharged liquid type display means enable the worker to confirm the bottom valve that is opened by the operator in order to discharge the desired liquid type from the tank to the stand tank to be transported. Features a device to prevent mix-up of discharged liquid from multi-chamber tanks.