JPS6323078B2 - - Google Patents

Description

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

[Conventional technology]

In 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, the discharge operation is performed as follows. As shown in FIG. 1, when the type of liquid to be discharged is kerosene, for example, the operator first confirms that kerosene is stored in the chamber 3B by checking the display board 2 on the top or side of the multi-chamber tank 1, and then An operation handle 4B provided on the chamber 3B is operated, thereby opening and closing a bottom valve 5B to discharge kerosene.

[Problem that the invention seeks to solve]

However, if an operator sometimes misunderstands or operates the operating handle of a chamber containing a liquid different from the desired type, mistakes may occur, such as discharging light oil into a kerosene tank at a gas station. In addition, when loading a multi-chamber tank at a storage base where various liquids are stored, if a different type of liquid is mistakenly loaded into each chamber than what is written on the display board, workers may follow the display board. However, 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.

The present invention has been made to solve the above-mentioned problems, and it is possible to avoid misunderstandings and incorrect operations by operators when discharging a desired liquid type from each chamber, and also to It is an object of the present invention to provide a device for preventing mix-up of discharged liquid from a multi-chamber tank, which prevents confusion of types of liquid loaded into a multi-chamber tank.

[Means for solving problems]

The present invention is applied to a multi-chamber tank for transportation, in which each chamber individually housing different liquid types has a bottom valve for discharging, and a discharge pipe communicating with the bottom valve is provided, and the present invention is characterized by: However, different energizing terminals 13 are installed in each liquid type tank at the liquid storage base, depending on the liquid type, and limit switches LM1 to LM1 are installed near the inlets 23 of each stand tank at the destination of transportation.
LM3, a current-carrying terminal 14 whose current-carrying contact provided in common to all stand tanks is different depending on the liquid type by its limit switch, and a current-carrying terminal 13 provided in each liquid type tank mentioned above. An energizing means 15 provided on the multi-chamber tank side that can be connected to any of the energizing terminals 14 provided in common to all stand tanks, and a manhole opening detection means 41 that detects the opening of the loading manhole in each room. , loading liquid type discriminating means 16 for determining the type of liquid to be loaded from the liquid type tank of the storage base into each chamber of the multi-chamber transport tank by the manhole opening detection means and the energizing means; loading liquid type storage means 17 for storing the loaded liquid type based on the signal of the loading liquid type determining means; and a loading liquid type storage means 17 for storing the loaded liquid type based on the signal of the loading liquid type storage means Loading liquid type display means 18 to display; Loading and discharging selection that is switched during loading work at a storage base and during discharge work at a gas station to separate the operations of the loaded liquid type determining means and the stored liquid type determining means. a means 19; a means 20 for determining the type of liquid contained in each stand tank to be transported, based on a signal from the energizing means, by switching the loading/discharging selection means; The present invention is to include a contained liquid type display means 21 that displays a display based on a signal from the type discrimination means.

[Operation and effects of the invention]

The bottom valve to be opened by the operator to discharge a desired liquid type from the multi-chamber tank to the stand tank at the transportation destination can be confirmed by the loaded liquid type display means and the stored 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.

〔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 the following description of each configuration, components having the same function, such as a bottom valve, in each chamber of the multi-chamber tank 1 will be distinguished by adding suffixes A, B, and C, respectively.

The present invention is installed in a vehicle 11 equipped with a multi-chamber tank 1 shown in FIG. 6, and corresponds to liquid types provided for each liquid type tank of a storage base 12 that stores a large amount of different liquid types. different energizing terminals 13 and gas station 22 at the destination (see Figure 7a)
an energizing means 15 (see FIG. 2 1) connected to an energizing terminal 14 provided at Loaded liquid type discriminating means 16 for determining the type of liquid to be loaded into each chamber of the multi-chamber transport tank 1 from the liquid type tank of the storage base 12 by the detection means 41 and the energizing means 15; A loading liquid type storage means 17 stores the type of loaded liquid based on the signal of the loading liquid type discrimination means 16, and a loading liquid type storage means 17 stores the type of liquid loaded for each chamber based on the signal of the loading liquid type storage means 17. The loading liquid type display means 18 to display, and the loading/discharging mechanism which is switched between the loading operation at the storage base and the discharging operation at the gas station to separate the operations of the loading liquid type determining means 16 and the stored liquid type determining means 20. By switching the selection means 19 and the loading/discharging selection means 19, the stored liquid type discriminating means 20, which determines the stored liquid type in each stand tank at the destination of transport, by the signal from the energizing means 15, and the stored liquid type Storage liquid type determination means 20
Storage liquid type display means 21 that displays based on the signal of
Its main structure is: Note that the energizing terminal 14 is connected to the inlet 2 of each stand tank to be transported.
Limit switches installed near 3.
By LM1 to LM3, the energizing paths of the energizing contacts provided in common to all stand tanks are made different depending on the liquid type.

The above-mentioned energizing means 15 is provided on the multi-chamber tank side, and includes an energizing terminal 13 provided in each liquid type tank and an energizing terminal 1 commonly provided in all stand tanks.
It can be connected to any of the 4. Specifically, the energizing means 15 connects to energizing terminals 13a to 13c that are individually provided in each liquid type tank 12a to 12c of the storage base 12 and differ depending on the liquid type, for example, as shown in FIGS. 3a to 3c. This is a current-carrying terminal that is used to indicate which type of liquid tank is to be loaded into the multi-chamber tank 1 via relays R1 to R3 (see Figure 2, 1) that operate depending on the current-carrying point. A signal indicating this is output to the loaded liquid type determining means 16. In addition, the energizing terminals of each liquid type tank are connected to the tanks 12a to 12a as shown in FIGS. 3a to 3c.
Each 12c is set to conduct at a different position,
The energizing terminal on the energizing means 15 side can be connected to the energizing terminal of any tank. Since a predetermined liquid type is always stored in each liquid type tank of the storage base 12, when the energizing means 15 is connected to the energizing terminal 13 on the liquid type tank side,
The type of liquid to be loaded into the multi-chamber tank 1 is uniquely determined. Furthermore, this energizing means 1
5 is connected to the energizing terminal 14 after the loading/discharging selection means 19 (described later) is switched at the destination gas station 22, the station A signal indicating what kind of liquid the tanks 22a to 22c contain is also output to the contained liquid type determining means 20.

In addition, as shown in FIG. 7b, at the gas station 22 to which the fuel is transported, the above-mentioned energizing terminal 14, which is common to all station tanks, is provided. When this current-carrying terminal 14 does not discharge the desired liquid type,
Inlet 23a of each stand tank 22a to 22c
An inhibiting lever 25 located on ~23c and obstructing the connection with the discharge hose 24 of the multi-chamber tank 1, while being operated by the operator to retreat to the side from directly above the inlet 23 when discharging. The energization path is switched accordingly. This switching is performed by the limit switch LM1, which is activated when the inhibiting lever 25 is retracted to the side from directly above the injection port 23.
- This is done by changing the current-carrying path at the current-carrying contact of the current-carrying terminal 14 by LM3,
The type of liquid contained in the stand tank having the inlet can be distinguished by one activated limit switch, and the type of liquid to be stored in the stand tank is uniquely determined. By the way, unlike the operation of the above-mentioned inhibition lever 25, the energizing terminal 14 that is switched in this way is connected to the limit switch LM1 to the inlet 23 (not shown).
The LM3 is provided so that it is activated when the discharge hose 24 is connected to the inlet 23, so that the energized points are changed and one limit switch activated causes the discharge hose 24 to be housed in the stand tank with the connected inlet. It is possible to distinguish between liquid types,
The type of liquid to be stored in the stand tank may be uniquely determined.

The loading liquid type determining means 16 receives a signal from the energizing means 15 and a signal from the limit switches LmA to LmC which detect the opening of any one of the loading manholes 26A to 26C in each chamber of the multi-chamber tank 1 shown in FIG. Based on this, the type of liquid loaded into the open manhole chamber is determined. As shown in the figure, the normally open contact l1 is activated when one manhole, for example 26A, opens, and the normally open contacts r1 to r are operated by the relays R1 to R3.
Relays R4 to R that operate when any one of 3 is open.
6 is provided. Similarly, the other normally open contact l2,
Relays R7 to R12 are also provided for l3. That is, normally open contacts r1 to r3 are activated by any one of relays R1 to R3 that are activated by a pair of contact connections in the energizing means 15, and normally open contacts l1 to l3 are activated by a limit switch of an opened manhole. A signal is output to the loaded liquid type storage means 17 by relays R4 to R12, which operate only when both of them are passed.

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 16, and relay R4 provided in the loading liquid type determining means 16 There are provided relays R13 to R21 which are operated by normally open contacts and normally closed contacts which are operated by R12, and a self-holding circuit consisting of normally open contacts r13 to r21 which maintain the operation of the relays. That is, the liquid type and storage chamber determined by the loaded liquid type discriminating means 16 are stored, and the relays R13 to R21 are activated to output the same signal as the stored signal to the loaded liquid type display means 18. It's summery.

The loaded liquid type display means 18 lights up a corresponding lamp, for example, in order to let the operator confirm what kind of liquid is stored in each chamber of the multi-chamber tank 1. That is, the relays R13 to R
The normally open contacts r13 to r21 activated by the terminals 21 cause the lamps PL1 to PL of the display 27 as shown in FIG.
9 is now lit. In addition, R13~
Needless to say, as long as R21 is self-maintained, the lamp remains lit. The display on the loaded liquid type display means 18 may be displayed by lighting a lamp as described above, or by displaying in letters, colors, or the like.

The stored liquid type determining means 20 has normally open contacts r1 to r3.
Relays R26 to R28 are interposed between the lamps PL12 to PL of the stored liquid type display means 21, respectively.
14 is turned on.

The storage liquid type display means 21 is the stand tank 13
For example, a corresponding lamp is turned on so that the operator can confirm what type of liquid is stored in each tank. That is, the relay R
Normally open contacts r26 to r28 operated by 26 to R28
Accordingly, the lamp of the display body 27 as shown in FIG.
PL12 to PL14 are lit.

The loading/discharging selection means 19 is switched during loading work at the storage base 12 and during discharging work at the gas station 22, and separates the respective operations of the discriminating means 16, 20 and the detecting means 28, 31, which will be described later. be.

In addition to the above configuration, if a plurality of manhole opening detection means 28, a bottom valve opening detection means 29, an alarm means 30 that notifies abnormal conditions detected by these, and a plurality of bottom valve opening detection means 31 at the time of discharge are provided, It is possible to avoid omissions or erroneous operations that the worker does not notice during loading work.

Briefly, multiple manhole opening detection means 28
The normally open contacts l1 to l3 operated by the limit switches LmA to LmC described above are arranged in series in pairs, and are connected in parallel in the required number.
A relay R22 is provided which is activated when any one of these pairs passes. This is to detect in advance so that an alarm can be issued via the alarm means 30 so that the loading compartment is specified as the only compartment for the time being so that the liquid being loaded will not be loaded into a room other than the desired compartment. be.

The bottom valve opening detection means 29 detects the bottom valves 5A to 5 of each chamber.
Limit switch installed on the operating handle of C
A parallel circuit of normally open contacts r4 to r12 operated by the relays R4 to R12 is connected in series to each of the normally open contacts l4 to l6 operated by LvA to LvC, and when they are connected, one of them is operated. Relays R23 to R25 are provided. This is because if the bottom valve of the chamber to be loaded is open, the loaded liquid will flow out, so to avoid this, the operator can be notified of this via the alarm means 30. This is something that is detected in advance.

The alarm means 30 includes the two detection means 28, 2
9 and a signal from the multi-bottom valve opening detection means 31 at the time of discharge described below, the buzzer BZ provided on the display body 27 is sounded, and the lamps PL10 and PL1 are activated.
1 is lit to alert workers.

The plurality of bottom valve opening detection means 31 at the time of discharge has the same configuration as the plurality of manhole opening detection means 28,
Consisting of normally open contacts l4 to l6 operated by limit switches LvA to LvC provided on the operating handles of the bottom valves 5A to 5C, the buzzer of the alarm means 30
This is to generate sound and light up BZ and lamp PL11.

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 work into the multi-chamber tank 1 at the storage base 12 will be described. In order to facilitate understanding, this will be explained in conjunction with the flowchart shown in FIG.

As shown in FIG.
side by side. Then, the energizing means 15 is connected to the energizing terminal 13a provided on the tank (step 1 of the flowchart, hereinafter referred to as S1).
In addition, when loading and discharging flammable liquids, static electricity may cause a disaster, so to prevent this, grounding should be provided as required by the Fire Service Act.
A third wire is connected to the ground wire 32 provided in the vehicle and the ground connection port 33 provided in the liquid type tank 12a.
By incorporating the contact points t1 to t4 of the energizing means 15 and the energizing terminals 13a to 13c, respectively, together with the grounding terminal t5 as shown in FIG. Energizing connections can be made with the same effort as required from the beginning.

When the contacts t1 and t2 of the energizing means 15 are electrically connected, the relay R1 is activated by the electric power supplied from the power source of the vehicle 11 through the contact t1 (S2), thereby causing the loaded liquid type determining means 15 to operate normally. Open contact r1
becomes the norm. In this state, the operator
The manhole 26A of the desired chamber 3A of the multi-chamber tank 1 into which the liquid a is to be loaded is opened (S3). Then, the loading arm 34 (see FIG. 6) is inserted into the manhole 26A. At this time, the limit switch LmA detects that the manhole 26A is open and the loading liquid type discriminating means 16
Since the normally open contact l1 of is passed through (S4), relay R4 is activated (S5).

As a result, the normally open contact r4 of the loaded liquid type storage means 17 becomes open. On the other hand, other normally closed contacts r5 and r6
Since the relays R2 and R3 do not operate because they are not connected in the energizing means 15, and the normally open contacts r2 and r3 are disconnected and the relays R5 and R6 do not operate, the ON state is maintained. When the contact r4 is in the open state, the relay R13 is activated (S6). The relay R13 is self-retained by the normally open contact r13 that becomes conductive when the relay is activated, and even if the energizing means 15 disconnects from the energizing terminal 13a of the liquid type tank 12a, the loaded liquid type will continue to be maintained. Containment room is memorized.

Furthermore, this relay opens the normally open contact r13 of the loaded liquid type display means 18, so the lamp
PL1 lights up (S7), and it is displayed that gasoline is loaded in the corresponding part of the display 27 as shown in FIG. 8, that is, in the first chamber 3A.

Similar to the loading operation described above, when loading from the liquid type tank 12a of the storage base 12 to the second chamber 3B of the multi-chamber tank 1, the connected energizing terminal 13
Contacts t1 and t2 of the current-carrying means 15 are electrically connected by a. Relay R1 is activated, thereby making normally open contact r1 of loaded liquid type determining means 16 conductive. In this state, when the manhole 26B of the desired chamber 3B is opened, the limit switch LmB moves to the manhole 26B.
It is detected that B is open, and the normally open contact l2 of the loaded liquid type determining means 16 is opened. Therefore, the relay R7 is activated and the loading liquid type storage means 17 is activated.
Normally open contact r7 becomes open and relay R16 is activated. The relay R16 is self-retained by the normally open contact r16 which becomes open when the relay is activated, and the type of liquid to be loaded and the storage chamber are memorized. Furthermore, the normally open contact r of the loaded liquid type display means 18 is controlled by this relay.
Since 16 is the pass, the lamp PL4 is not shown in the figure.
lights up.

Similarly, other liquid type tanks 1 of the storage base 12
When carrying out loading work from 2b to the first chamber 3C of the multi-chamber tank 1, contacts t1 and t3 of the current-carrying means 15 are electrically connected by the connected current-carrying terminal 13b.
Relay R2 is activated, thereby opening the normally open contact r2 of the loading liquid type determining means 16. In this state, when the manhole 26C of the desired chamber 3C is opened,
The limit switch LmC detects that the manhole 26C is open and opens the normally open contact l3 of the loading liquid type determining means 16. Therefore, the relay R11 is activated, the normally open contact r11 of the loaded liquid type storage means 17 is opened, and the relay R20 is activated. The relay R20 is self-retained by the normally open contact r20 which becomes open when the relay is activated, and the type of liquid to be loaded and the storage chamber are memorized. Furthermore, this relay connects the normally open contact r20 of the loaded liquid type display means 18.
Since the current is passed, the lamp PL8 lights up.

Similarly, liquid can be loaded one after another from each liquid type tank of the storage base 12 into a desired chamber of the multi-chamber tank 1, and these are stored and displayed in the loaded liquid type storage means and display means. Therefore, as a special case, it is possible to fill all the chambers of the multi-chamber tank 1 with the same type of liquid without any problem.

By the way, when opening a manhole in the multi-chamber tank 1, if you accidentally open two or more manholes, such as by hitting another manhole that has already been opened, you may accidentally move the loading arm 34 into an undesired chamber. In order to avoid this, a warning can be sent to the operator to prevent this from happening. That is, when at least two manholes, such as 26A and 26B, are open (S8), the normally open contacts l1 and l2 of the plurality of manhole opening detection means 28 in FIG. 2 are connected, and the relay R22 is activated (S9). As a result, the normally open contact r22 of the alarm means 30 becomes open, and the buzzer BZ
sounds (S10) and PL10 lights up (S11). Of course, only one manhole is open.
In this case, the above-mentioned relay is not activated and no alarm is issued (S12, S13, S14).

In addition, if the bottom valve 5A of the desired chamber, e.g. 3A, of the multi-chamber tank 1 to be loaded is opened for some reason (S15), the loaded liquid will flow out, so the operating handle of the open bottom valve 5A will By the normally open contact l4 (S16), which becomes normal by the operation of the limit switch LvA provided, and by the relay, for example, R4 (S5) of the loaded liquid type discrimination means 16, which discriminates between the liquid type tank of the storage base 12 and the chamber with the manhole opened. Normally open contact r4 activates relay R23 of bottom valve opening detection means 29 (S17), and normally open contact r23 of alarm means 30 causes buzzer BZ and lamp PL11 to sound and light (S10, S18). It is now possible to alert workers. Of course, if the bottom valve is closed, there will be no alarm from the alarm means 30 (S19, S20, S13, S21)
This is the same as in the case of the plurality of manhole openings.

In this state, if the pump 35 shown in FIG. 6 is driven (S22) and the liquid in the liquid type tank 12a is loaded into the vehicle (S23), erroneous operations during loading work are prevented and the desired liquid type is loaded. Each liquid type is stored in the loading chamber in a desired chamber, and the loaded liquid type can be stored. In this way, in the storage base 12, the loading/discharging selection means 19 connects the contacts t6 and t7.
The two chambers are electrically connected to each other, and each chamber of the multi-chamber tank 1 accommodates each liquid type. The multi-chamber tank 1 is transported with the loaded liquid type stored in the storage means 17 and the lamp in the loaded liquid type display means 18 lit.

When the vehicle 11 is next to a station tank, for example 22b, of the destination gas station 22, first, the contacts of the loading/discharging selection means 19, to which contacts t6 and t7 are connected, are switched to t6 and t8 (S29). Then, as shown in Figure 7, the ground wire 3
2, the energizing means 15 is connected to the common energizing terminal 14 of all stand tanks 22a to 22c as described above (S30). Note that even if the contacts of the loading/discharging selection means 19 are switched, the loading liquid type storage means 17 and the loading liquid type display means 18 are not shut off by the loading/discharging selection means 19, so the memory and display are lost. Never.

When the energizing means 15 is connected, the operator presses the inhibiting lever 25b on the filling port 23b of one stand tank, for example, the kerosene tank 22b, as shown in FIG. 7a.
is rotated to retreat from the inlet 23b, and the inlet 2
3b and the discharge hose 24 of the multi-chamber tank 1 are connected. At this time, the limit switch LM2 is operated by the inhibiting lever 25b, and the contacts t1 and t3 in the current-carrying terminal 14 are connected. Therefore,
Relay R2 is activated (S31), and as a result, relay R27 is activated by the normally open contact r2 of the stored liquid type determining means 20, which is turned on (S32). In other words, relay R27 connects multi-chamber tank 1 and gas station 22.
It is determined that the stand tank 22b, which is a kerosene tank, is connected. By this relay, the normally open contact r27 of the contained liquid type display means 21 becomes open, and the lamp PL13 lights up at the display body 27 shown in FIG.
It lights up like this (S33). Therefore, when gasoline, diesel oil, and kerosene are stored in the order of gasoline, diesel oil, and kerosene in each chamber of the multi-chamber tank 1, and the lamps PL1, PL6, and PL8 are lit, an operator may change the chamber containing kerosene to the third chamber 3.
It can be confirmed that it is C (S34).
In addition, as described above, the limit switches LM1 to LM3 are provided in the inlet 23, and the discharge hose 24 is provided with the limit switches LM1 to LM3.
Similarly, in the case where the lamp is set to be activated when connected to the injection port 23, the energized portion of the energizing terminal 14 is changed, and the lamp PL13 is lit as described above.

Therefore, after opening the bottom valve 5C with the operating handle 4C (S35), the discharge source valve 37 of the discharge pipe 36 is opened (S36), and the desired liquid type, kerosene, is passed through the discharge hose 24 into the stand tank. 22b (S37). Note that unless the operator operates the above-mentioned inhibition lever 25 or connects the discharge hose 24 to the inlet 23, the limit switch will not be activated.
Since LM1 to LM3 do not operate, the lamp of the contained liquid type display means 21 does not light up.

By the way, when the bottom valve 5C is opened, if other bottom valves, for example 5B, are also opened, light oil will be discharged along with kerosene, so in order to prevent this, the multiple bottom valve opening detection means 31 at the time of discharge is used. detects this (S38), and can call the operator's attention using the alarm means 30 (S39, S40).

In the configuration and operation described above, the current supply means 15 may be replaced with a circuit 38 as shown in FIG. That is, each terminal 13a, 13b,
Different resistors Ra, Rb, and Rc are interposed for each circuit in which limit switches LM1 to LM3 are located, and the current-carrying terminal of the current-carrying means 15 of the multi-chamber tank 1 is arranged in series with the resistor Ro. A switch 39 for switching the circuit is interposed between the relays R1 to R3.

According to this circuit 38, the current-carrying terminals 13a to 13
Different voltages Va={Ro/(Ro+Ra)}・Vo Vb={Ro/(Ro+Rb)}・Vo Vc={Ro/(Ro+Rc)}・Vo occur at point Q, so these voltages Relays R1 to R3 should be energized by switch 39, which switches accordingly.
Select. The subsequent operations are no different from those described above. According to such an energizing circuit 38, the energizing means 15 connected to the energizing terminals 13 and 14 does not require any number of conducting wires as described above, and can use, for example, a shielded wire 40 with one core wire, and can be used in a long and long manner. There is an advantage that the connection wire of the energizing means 12 can be made with a thin wire.

In the above two embodiments, three types of liquids have been described as examples, but if the tank is a multi-chamber tank with two or more chambers,
Needless to say, this method can be applied to all cases where liquids of more than 100% are handled. Furthermore, although the respective operations have been explained using relay circuits, digital ICs such as gate circuits and flip-flops can also be used.

As can be seen from the above explanation, the bottom valve that the operator opens to discharge the desired liquid type from the multi-chamber tank to the stand tank at the destination is confirmed by the loading liquid type display means and the stored liquid type display means. be able to. Therefore, it is possible to avoid misunderstandings and incorrect operations by the operator when discharging the desired liquid type from each chamber.
Furthermore, there is no confusion regarding the types of liquids to be loaded into each chamber during loading operations.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a conventional multi-chamber tank containing different liquids, Figures 2 and 2 are relay circuit diagrams applied to the discharge liquid mix-up prevention device of the present invention, and Figure 3 a.
-c are examples of energizing means and energizing terminals, Fig. 4 is a sectional view of a multi-chamber tank of the present invention, Figs. Loading state diagram into chamber tank, No. 7
Figure a is a diagram of the state of discharge from a multi-chamber tank to a stand tank at a gas station, Figure 7b is a diagram of the installation state of the inhibiting lever provided at the inlet of each stand tank and the energizing terminal switched by a limit switch, Figure 8 The figure shows an example of the display body, and FIG. 9 shows a different example of the energizing means and the energizing terminal. 1...multi-chamber tank, 3A~3B...chamber, 5A~5B
...Bottom valve, 12...Storage base, 12a-12c...Liquid type tank, 13, 14...Electrifying terminal, 15...Electrifying means, 16...Loading liquid type determining means, 17...Loading liquid type storage means, 18...Loading liquid type Display means, 19...
Loading and discharging selection means, 20...accommodated liquid type determination means,
21... Storage liquid type display means, 22a to 22c... Stand tank, 23... Inlet, 24... Discharge hose,
25... Inhibition lever, 36... Discharge pipe, 41... Manhole opening detection means, LmA, LmB, LmC, LM1
~LM3...Limit switch.

Claims (1)

[Scope of Claims] 1. A liquid storage base in a multi-chamber tank for transportation in which each chamber individually housing different liquid types has a bottom valve for discharging, and a discharge pipe communicating with the bottom valve is provided. Different energizing terminals are installed in each liquid type tank according to the liquid type, and a limit switch is installed near the inlet of each stand tank to be transported. A current-carrying terminal whose current-carrying path differs depending on the liquid type, a current-carrying terminal provided on each liquid type tank mentioned above, and a current-carrying terminal common to all stand tanks. An energizing means provided on the connectable multi-chamber tank side, a manhole opening detecting means for detecting the opening of the loading manhole in each chamber, and the manhole opening detecting means and the energizing means detecting the liquid type tank of the storage base. a loading liquid type discriminating means for determining the type of liquid to be loaded into each chamber of the multi-chamber transport tank; and a loading means for storing the liquid type loaded in each chamber based on a signal from the loading liquid type discriminating means. a liquid type storage means; a loading liquid type display means for displaying the liquid type loaded in each chamber based on a signal from the loading liquid type storage means; and during loading work at a storage base and during discharge work at a gas station. a loading/discharging selection means which is switched at the energizing means and separates the operation of the loaded liquid type discriminating means and the stored liquid type discriminating means; A storage liquid type discriminating means for determining the type of liquid contained in each of the stand tanks, and a contained liquid type display means for displaying the type of stored liquid based on a signal from the contained liquid type determining means. Device to prevent mix-up of discharged liquid from chamber tank. 2. The limit switch is connected or disconnected by an inhibiting lever that is provided close to the limit switch and can be rotated between a position immediately above the inlet and a position retracted to the side, and is provided in common to all stand tanks. 2. The device for preventing mix-up of discharged liquids from a multi-chamber tank according to claim 1, wherein the energizing paths of the energizing terminals are different depending on the type of liquid. 3. The limit switch is disconnected or connected by the connection part of the discharge hose of the multi-chamber tank connected to the inlet, and the energization path of the energization terminal provided in common to all stand tanks is different depending on the type of liquid. A device for preventing mix-up of discharged liquid from a multi-chamber tank according to claim 1, wherein