JP2006069614A - Storage tank container, trailer, vehicle, liquid transportation vehicle and liquid transporting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid transportation technology by which liquids of different types can be easily transported using one storage tank. <P>SOLUTION: A trailer 6 loaded with a storage tank 8 is towed by a vehicle 3 and thereby transferred to a predetermined destination. A liquid in the storage 8 is stored into a storage space by being pumped into the storage space by a pumping means 9 attached to the trailer 6. After the liquid is unloaded, the storage tank 8, trailer-side pipes 10 connected by a union joint, and a storage-tank-container-side pipe 11 are easily disconnected and washed. Thus, a different type of liquid is allowed to be loaded in the storage tank 8. Accordingly, liquids of different types are transported with the one storage tank 8 and pumped in corresponding storage spaces in predetermined destinations by the pumping means 9 of the trailer 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a storage tank container, a trailer, a vehicle, a vehicle for transporting liquid, and a liquid transport method applied to transport of liquid, and is particularly suitable for application to work for transporting different types of chemical solvents.

  As a technique related to the liquid transportation business, for example, a tank truck for transporting a liquid containing a liquefied gas has been proposed (see Patent Document 1). On the other hand, conventionally, in the transportation business of liquids (for example, drinking water and chemical solvents), the liquid is stored in the storage tank of the container, and the container is pulled and transported by the vehicle to transport the liquid to a predetermined transportation destination. Conveying has become mainstream. In particular, when transporting a chemical solvent, a container provided with a dedicated tank for storing one kind of solvent has been used.

  In order to increase the operation rate of vehicles and containers and improve the efficiency of transportation, it has been desired to transport different types of liquids in the storage tank of the container. For example, the vehicle can be operated efficiently by removing the container (trailer) that has been pulled at the transport destination and attaching a container (trailer) in which the same or different liquid is stored in advance in the storage tank. Alternatively, only the vehicle from which the trailer has been removed is caused to travel to another container (trailer) where different types of liquid are stored in the storage tank in advance, and the trailer is pulled to the predetermined location at the destination. Thus, various liquids can be efficiently transported with a small number of vehicles.

  However, when transporting another liquid after transporting the chemical solvent, it was necessary to carefully clean the inside of the storage tank and the piping. In other words, chemical solvent transport objects include semiconductor solvents that are considered hazardous materials, so when transporting different types of chemical solvents, etc., mixing of different liquids or mixing of impurities, etc. Great care was needed to prevent this. Therefore, it is necessary to carefully clean the inside of the storage tank and the piping so that no chemical solvent remains.

  However, the parts and equipment that make up the liquid flow path such as storage tanks, pipes, and pumps used in conventional transport operations are premised on transporting dedicated liquids. The surface to do was relatively rough. Moreover, since the connection of piping is also based on the premise of preventing leakage, a configuration (for example, flange coupling) that obtains a reliable coupling state (a state in which vibrations generated during conveyance and liquid leakage due to vibrations are unlikely to occur) has been adopted. For this reason, liquid pools are likely to occur in the pipes and connection parts, the disassembling work is large, and it is difficult to remove impurities even after cleaning. It was difficult to clean.

  Therefore, the present situation is that a technique for easily transporting different types of liquids in one storage tank has not been established.

JP 2000-238573 A

  In view of such circumstances, it is an object of the present invention to provide a storage tank container, a trailer, a vehicle, a liquid transport vehicle, and a liquid transport method that can easily transport different types of liquids in one storage tank. To do.

In order to achieve the above object, the first aspect of the present invention provides:
It is equipped with a sanitary specification storage tank with improved inner surface cleaning properties to store different types of liquid after cleaning, and sanitary specification container side piping with improved inner surface cleaning properties,
Storage tanks characterized in that the container-side piping is mounted on the trailer by connecting to the sanitary specification trailer-side piping with improved inner surface cleanliness via a union joint that connects the piping to each other by tightening nuts In the container.

  In the first aspect, it is possible to provide a container for transporting liquid that can improve the washability and can easily transport different types of liquids in one storage tank.

The second aspect of the present invention is:
In the first aspect, the liquid stored in the storage tank is in a storage tank container, which is a chemical solvent.

  In the second aspect, the chemical solvent can be transported in one storage tank.

The third aspect of the present invention is:
In the first or second aspect, the union joint is in the storage tank container, wherein tightening is managed based on a vibration state when the trailer is moved for a predetermined time.

  In the third aspect, liquid leakage does not occur even when a union joint is used.

In order to achieve the above object, the fourth aspect of the present invention provides:
A storage tank container with a storage tank is mounted and transported by vehicle,
Equipped with sanitary specification trailer side piping with improved inner surface cleanability,
Trailer side piping is connected to the storage tank side and the supply side by connecting multiple piping via a union joint that connects the piping by tightening nuts.
The trailer is characterized by comprising a pressure feeding means for pumping the liquid in the storage tank to the supply side.

  In the fourth aspect, it is possible to provide a liquid transport trailer that can improve the washability and can easily transport different types of liquid in one storage tank.

According to a fifth aspect of the present invention,
In a fourth aspect, the trailer is characterized in that a chemical solvent is stored as a liquid in a storage tank to be mounted.

  In the fifth aspect, the chemical solvent can be conveyed by one storage tank.

The sixth aspect of the present invention is:
In the fourth or fifth aspect, the pressure-feeding means is a sanitary specification rotary pump that improves the cleaning performance of the liquid flow passage.

  In the sixth aspect, the liquid can be conveyed by a rotary pump having a simple mechanical structure and easy to clean.

The seventh aspect of the present invention is
In any one of the fourth to sixth aspects, the driving unit of the pressure feeding unit is an internal combustion engine for traveling of the vehicle.

  In the seventh aspect, the pressure feeding means can be driven without using a dedicated driving means.

The eighth aspect of the present invention is
In any one of the fourth to seventh aspects, the union joint is a trailer characterized in that tightening is managed based on a vibration state when the trailer is transported by a vehicle for a predetermined time.

  In the eighth aspect, liquid leakage does not occur even when a union joint is used.

In order to achieve the above object, the ninth aspect of the present invention provides:
It is a vehicle that pulls a trailer on which a storage tank container equipped with a storage tank is mounted and travels by an internal combustion engine, and the trailer is equipped with a sanitary specification trailer side pipe with improved inner surface cleaning properties,
Trailer side piping is connected to the storage tank side and the supply side by connecting multiple piping via a union joint that connects the piping by tightening nuts.
A pump that pumps the liquid in the storage tank to the supply side;
The pump is driven by an internal combustion engine.

  In the ninth aspect, it is possible to improve the washability and easily transport different types of liquids in one storage tank.

The tenth aspect of the present invention provides
In a ninth aspect, the vehicle is characterized in that a chemical solvent is stored as a liquid in a storage tank of the trailer to be pulled.

  In the tenth aspect, the chemical solvent can be conveyed by one storage tank.

The eleventh aspect of the present invention is
In the ninth or tenth aspect, the union joint is in a vehicle characterized in that tightening is managed based on a vibration state when the trailer is pulled for a predetermined time.

In order to achieve the above object, the twelfth aspect of the present invention provides:
A vehicle driven by an internal combustion engine;
It is equipped with a storage tank container and is equipped with a sanitary specification trailer-side piping that enhances the cleanability of the inner surface. It is connected to the storage tank container side and the supply side, and is provided with a pump that pumps the liquid in the storage tank container to the supply side.The pump is driven by the internal combustion engine, and includes a vehicle and an attachable trailer.
The storage tank container is equipped with a storage tank for storing liquid, sanitary container side piping with improved inner surface cleanability, and the container side piping connects the piping to the trailer side piping by tightening nuts. The liquid transportation vehicle is connected to a joint and mounted on a trailer.

  In the twelfth aspect, the liquid transport vehicle can improve the washability and can easily transport different types of liquids in one storage tank.

The thirteenth aspect of the present invention provides
In a twelfth aspect, in the vehicle for transporting liquid, the storage tank stores a chemical solvent as a liquid.

  In the thirteenth aspect, the chemical solvent can be conveyed by one storage tank.

The fourteenth aspect of the present invention provides
In the twelfth or thirteenth aspect, the union joint is in a vehicle for transporting liquid, characterized in that tightening is managed based on a vibration state when the vehicle is driven and the trailer is pulled for a predetermined time.

  In the fourteenth aspect, liquid leakage does not occur even when a union joint is used.

In order to achieve the above object, the fifteenth aspect of the present invention provides
A trailer equipped with a liquid storage tank is pulled by a vehicle and transferred to a predetermined transport location, and the liquid in the liquid storage tank is pumped to a storage location by a pumping means provided in the trailer and stored, and then the liquid is discharged. Different types of liquid can be carried into the liquid storage tank by washing the storage tank and piping. When transferring different types of liquid, different types of liquid can be carried by washing the liquid storage tank and piping. The liquid transporting method is characterized in that different types of liquid are transported in one liquid storage tank and are pumped to a storage location at a predetermined transporting location using a pumping means provided in the trailer.

  In the fifteenth aspect, the liquid transport method can improve the cleaning performance and easily transport different types of liquids in one storage tank.

  The best mode for carrying out the present invention will be described below with reference to the drawings. The description of the present embodiment is an exemplification, and the present invention is not limited to the following description of the configuration of the vehicle, the shape of the storage tank, the state of piping, and the like. In the present embodiment, it is assumed that the chemical solvent is stored and transported as a liquid.

  FIG. 1 is a side view showing a schematic structure of a liquid transport vehicle according to an embodiment of the present invention, and FIG. 2 is a side view showing a schematic structure of a liquid transport trailer according to an embodiment of the present invention. FIG. 3 is a side view showing a schematic structure of the liquid transport container according to the embodiment of the present invention.

As shown in the figure, a liquid transport vehicle 1 includes a vehicle 3 that travels with an engine 2 as an internal combustion engine. A liquid transport trailer (liquid transport trailer) is connected to a traction portion 4 of the vehicle 3 via a connecting member 5. ) 6 is connected. Different types of liquid transport trailers 6 can be connected to the traction unit 4.
A storage tank container 31 is placed and fixed on the liquid transport trailer 6, and the storage tank container 31 includes a storage tank 8 in the container body 7. The liquid transport trailer 6 is equipped with a rotary pump 9 as pressure feeding means. The rotary pump 9 is provided with trailer side pipes 10 on the inflow side and the discharge side.

  The rotary pump 9 is driven by the engine 2 of the vehicle 3. For this reason, it becomes possible to drive the rotary pump 9 without providing a dedicated drive means. The rotary pump 9 can be driven by a dedicated drive means. In this case, it is possible to use an optimum driving means according to the specification of the rotary pump 9.

  A storage tank container side pipe 11 is provided in the storage tank 8 of the storage tank container 6, and an inflow side trailer side pipe 10 is connected to the storage tank container side pipe 11. That is, by driving the rotary pump 9, the liquid (chemical solvent) in the storage tank 8 is pumped to a predetermined place via the trailer side pipe 10.

  With such a configuration, when the liquid transport trailer 6 is pulled to the supply location by the liquid transport vehicle 1, the chemical solvent stored in the storage tank 8 is driven by driving the rotary pump 9 with the engine 2. The pressure is fed from the storage tank container side pipe 11 through the trailer side pipe 10 to the supply side via the rotary pump 9.

  Further, the storage tank 8, the storage tank container side pipe 11, the trailer side pipe 10, and the rotary pump 9 are configured with sanitary specifications with improved inner surface cleaning properties, and liquid from the storage tank 8 to the supply side. The flow path is composed of smooth wall surfaces. Specifically, the inner surfaces of pipes and equipment are treated by techniques such as coating and polishing. As a result, friction loss is unlikely to occur on the contact surface with the liquid, and a pool of liquid to be supplied and adhesion of impurities can be prevented.

  Here, examples of the liquid stored and transported in the storage tank 8 include various liquids such as drinking water and industrial products.

  In the present embodiment, since a chemical solvent is assumed, by configuring the liquid flow path with the sanitary specifications as described above, cleaning work of piping and equipment after transport becomes easy and remains. Liquids and impurities can be easily removed. For this reason, it is possible to store different chemical solvents and different types of liquids in the same storage tank 8.

  Next, the piping state of the liquid transport trailer 6 including the storage tank container side piping 11 and the trailer side piping 10 will be described in detail. FIG. 4 is a top view illustrating a state from the storage tank container side pipe 11 to the trailer side pipe 10 according to the embodiment of the present invention, and FIG. 5 illustrates the storage tank container side pipe 11 according to the embodiment of the present invention. FIG. 6 is a side view showing a state up to the trailer side pipe 10, and FIG. 6 is a rear view of the liquid transport trailer 6 according to the embodiment of the present invention.

  As illustrated, the trailer side pipe 10 provided on the inflow side and the discharge side of the rotary pump 9 is configured by connecting a plurality of pipes via a union joint 15 described later. The discharge-side trailer-side piping 10 and the storage tank container-side piping 11 are similarly connected via a union joint 15.

  Specifically, the pipe 16 constituting the inflow side path from the storage tank container side pipe 11 to the rotary pump 9 is a plurality of pipes having various shapes and lengths such as a flexible pipe, a straight pipe, and an elbow pipe. These pipes are connected to each other via a union joint 15. That is, an optimal route is constructed in a limited space.

  On the other hand, the pipe 17 constituting the discharge side path from the rotary pump 9 to the supply side is similarly configured by combining a plurality of pipes having various shapes and lengths, and the pipes are connected to the union joint 15. Connected through. That is, the piping 17 constituting the discharge side passage is provided with an outlet piping 18 extending in the vehicle width direction, and manual opening / closing valves 19 are provided at both ends of the outlet piping 18. That is, the liquid can be carried out from either side regardless of the direction of the liquid carrying vehicle 1.

  With such a pipe configuration, the pipe of the liquid transport trailer 6 is connected in a state of connecting the storage tank container side pipe 11 and the supply side to form a liquid flow path.

  The flow path state of the pipe is not limited to the illustrated example, and various flow paths can be constructed depending on the size and shape of the liquid transport trailer 6 and the liquid carry-out situation.

  Here, the structure of the union joint 15 will be described in detail. FIG. 7 is a perspective view of the arrangement state of the components of the union joint according to the embodiment of the present invention, FIG. 8 is an exploded perspective view of the union joint in a state where the pipes are not connected, and FIG. 1 is a cross-sectional view of a union joint according to an embodiment of the present invention. 7 to 9 exemplify the union joint 15 at the connection portion between the storage tank container side pipe 11 and the trailer side pipe 10.

  As shown in FIG. 7, the union joint 15 includes a screw member 22 fixed to the end of the trailer side pipe 10 by welding, a sleeve 21 fixed to the end of the storage tank container side pipe 11 by welding, and a screw. A packing 23 interposed between the member 22 and the sleeve 21, and a nut that locks the sleeve 21 from the storage tank container side pipe 11 side and is screwed into the screw member 22 to press the sleeve 21 against the trailer side pipe 10 side. 24.

  That is, as shown in FIGS. 7 to 9, a locking ring 27 is provided on the outer periphery of the sleeve 21. An inner ring 28 is provided on the inner periphery of the nut 24 from the storage tank container side pipe 11 side to the locking ring 27, and the nut 24 is disposed on the outer periphery of the sleeve 21 from the storage tank container side pipe 11 side. Since the ring 28 is locked to the locking ring 27, it is prevented from coming off from the sleeve 21.

  On the other hand, a screw portion 25 is formed on the outer periphery of the screw member 22, and the inner side of the nut 24 on the opposite side of the inner ring 28 (trailer side pipe 10 side) is screwed into the screw portion 25 of the screw member 22. A circumferential screw portion 26 is formed.

  8 is a state in which the nut 24 is prevented from coming off to the outer periphery of the sleeve 21. From this state, the inner peripheral threaded portion 26 of the nut 24 is screwed into the threaded portion 25 of the screw member 22. The nut 24 moves to the right side in the figure with the sleeve 21 fixed to the storage tank container side piping 11 side in a state where 28 is locked to the locking ring 27 of the sleeve 21. Thereby, the sleeve 21 is pressed against the screw member 22 with the packing 23 interposed therebetween, and the trailer side pipe 10 side and the storage tank container side pipe 11 are connected. By adjusting the tightening torque of the nut 24, a predetermined joining state can be obtained.

  For example, when a predetermined pressure is applied with the pipe connected and the pressure loss when the liquid transport vehicle 1 is run for a predetermined time is confirmed, it is confirmed by a test that the loss is within the allowable value. . That is, it has been proved that a sufficient joint state can be obtained even when the union joint 15 is used without using the flange connection. The results of this test have been confirmed to meet legal standards for transporting dangerous goods.

  The union joint 15 is controlled to be tightened based on the vibration state when the liquid transport trailer 6 is moved for a predetermined time. For example, when the nut 24 is tightened or removed, for example, the liquid transport trailer Whether or not tightening is performed with a predetermined torque force that can withstand the frequency generated by the movement of 6 is managed. Thereby, for example, when the liquid is transported by the liquid transport trailer 6 that has been cleaned and assembled, liquid leakage caused by incomplete piping connection can be reliably prevented.

  By using the union joint 15 as described above, it becomes possible to freely connect the trailer side pipe 10 having various shapes as shown in FIG. Disassembling work can be facilitated.

  In the liquid transport vehicle 1 of the present embodiment, the liquid transport trailer 6 equipped with the storage tank 8 is pulled by the vehicle 3 and transferred to a predetermined transport location, and the liquid in the storage tank 8 is transferred to the liquid transport trailer 6. A different type of liquid is carried into the storage tank 8 by washing the storage tank 8 and the pipes 10 and 11 after the liquid is carried out by being pumped and stored in a predetermined storage location by the rotary pump 9 provided in the storage tank. Is possible. When transferring different types of liquids, the storage tank 8 and the pipes 10 and 11 are washed to carry in different types of liquids, and the single storage tank 8 transfers different types of liquids. A rotary pump 9 provided on the trailer 6 can be used to pump the container to a storage location at a predetermined transfer location.

  In general, when carrying chemical chemicals (dangerous substances), it is necessary to obtain permission for installation from the fire department, which is obtained by clearing prescribed legal standards for equipment, including vehicles for transportation. For this reason, for example, when adopting a form (union joint 15 in this embodiment) different from the joining state of pipes conventionally employed as in this embodiment, confirm the concern in that case. After demonstrating safety, it was necessary to obtain a new installation permission from the Fire Department. Here, as main concerns in the present embodiment, for example, whether or not the union joint 15 is loosened due to vibration during traveling, is it possible to ensure airtightness at the time of assembly restoration after washing the pipes and pumps? Or not.

  Therefore, in the present embodiment, in order to employ the union joint 15 for joining pipes in a chemical solvent (hazardous material) transportation work, a tester for the union joint 15 is attached to the liquid transportation vehicle 1 as follows. Running test. The test device consisted of a cylindrical container connected by a union joint 15 and attached with a pressure gauge, and was attached to the storage tank 8. At this time, the union joint 15 was tightened to a tightening torque of 1000 kg · cm using a special monkey spanner, and a pressure of 2.00 kg / cm 2 was applied pneumatically into the container.

  Moreover, the test position of the case where it attached to the mounting position of the test device with respect to the vehicle 1 for liquid conveyance in the vertical direction and the case where it attached in the horizontal direction was each implemented.

  In the state as described above, a distance of 800 km to 1300 km was traveled for a period of 10 to 26 days, and the pressure drop state and the tightening torque looseness after the travel were measured. That is, it was actually measured and confirmed whether or not the attached union joint 15 was loosened due to the vibration of the vehicle during traveling.

  As a result of such a test, it was confirmed that the union joint 15 did not loosen due to vibration during traveling and sufficient confidentiality was ensured, and the joining state of pipes conventionally employed (for example, flange joints) ) Proved to be as safe as As a result, it was proved that the union joint 15 can be employed in the liquid transport vehicle 1 during the transporting operation of the chemical solvent (dangerous material), and installation permission from the fire department was obtained.

  As described above, in this embodiment, the storage tank 8, the storage tank container side pipe 11, the trailer side pipe 10, and the rotary pump 9, which serve as a liquid flow path, are configured with sanitary specifications with improved inner surface detergency. Thus, the cleaning operation after transport can be facilitated, and the union joint 15 is used to connect the trailer side pipe 10 and the storage tank container side pipe 11 of the liquid transport trailer 6, thereby providing a liquid flow path. Assembling and disassembling of the trailer side pipe 10 and the storage tank container side pipe 11 when cleaning the tank can be facilitated, so even if a chemical solvent containing dangerous substances is transported, one storage It is possible to easily transport different types of chemical solvents using the tank 8.

  In the embodiment described above, the engine 2 for traveling the vehicle is illustrated as a drive source of the rotary pump 9, but the present invention is not limited to this. For example, the rotary pump is driven by using other power driven by hydraulic pressure or liquid pressure. The pump 9 may be driven.

  In the above-described embodiment, the rotary pump 9 is exemplified as the pressure feeding means. However, the present invention is not limited to this. For example, other devices and apparatuses that can send liquid to the supply side by pressure are applied. May be.

It is a side view showing the schematic structure of the liquid conveyance vehicle concerning the embodiment of the present invention. It is a side view which shows schematic structure of the trailer for liquid conveyance which concerns on embodiment of this invention. It is a side view which shows schematic structure of the container for liquid conveyance which concerns on embodiment of this invention. It is a top view which shows the state from the storage tank container side piping 11 to the trailer side piping 10 which concerns on embodiment of this invention. It is a side view showing the state from storage tank container side piping 11 to trailer side piping 10 concerning the embodiment of the present invention. It is a rear view of the liquid conveyance trailer 6 which concerns on embodiment of this invention. It is a perspective view of the arrangement state of the component parts of the union joint concerning the embodiment of the present invention. It is a disassembled perspective view of the union joint in the state where tubes are not connected. It is sectional drawing of the union joint which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid conveyance vehicle 2 Engine 3 Vehicle 4 Traction part 5 Connecting member 6 Liquid conveyance trailer 7 Container main body 8 Storage tank 9 Rotary pump 10 Trailer side piping 11 Storage tank container side piping 15 Union joint 16, 17 Piping 21 Sleeve 22 Screw Member 23 Packing 24 Nut 25 Threaded portion 26 Inner peripheral threaded portion 27 Locking ring 28 Inner ring 31 Storage tank container

Claims (15)

It is equipped with a sanitary specification storage tank with improved inner surface cleaning properties to store different types of liquid after cleaning, and sanitary specification container side piping with improved inner surface cleaning properties,
Storage tanks characterized in that the container-side piping is mounted on the trailer by connecting to the sanitary specification trailer-side piping with improved inner surface cleanliness via a union joint that connects the piping to each other by tightening nuts container. 2. The storage tank container according to claim 1, wherein the liquid stored in the storage tank is a chemical solvent. 3. The storage tank container according to claim 1, wherein the union joint is controlled to be tightened based on a vibration state when the trailer is moved for a predetermined time. A storage tank container with a storage tank is mounted and transported by vehicle,
Equipped with sanitary specification trailer side piping with improved inner surface cleanability,
Trailer side piping is connected to the storage tank side and the supply side by connecting multiple piping via a union joint that connects the piping by tightening nuts.
A trailer comprising pressure feeding means for pumping liquid in a storage tank to a supply side. 5. The trailer according to claim 4, wherein a chemical solvent is stored as a liquid in a storage tank to be mounted. 6. The trailer according to claim 4 or 5, wherein the pressure-feeding means is a sanitary rotary pump having improved cleaning performance of the liquid flow passage. 7. The trailer according to claim 4, wherein the driving means of the pressure feeding means is an internal combustion engine for running the vehicle. The trailer according to any one of claims 4 to 7, wherein the union joint is controlled to be tightened based on a vibration state when the trailer is transported by a vehicle for a predetermined time. It is a vehicle that pulls a trailer on which a storage tank container equipped with a storage tank is mounted and travels by an internal combustion engine, and the trailer is equipped with a sanitary specification trailer side pipe with improved inner surface cleaning properties,
Trailer side piping is connected to the storage tank side and the supply side by connecting multiple piping via a union joint that connects the piping by tightening nuts.
A pump that pumps the liquid in the storage tank to the supply side;
A vehicle wherein the pump is driven by an internal combustion engine. 10. The vehicle according to claim 9, wherein a chemical solvent is stored as a liquid in a storage tank of the trailer to be pulled. 11. The vehicle according to claim 9, wherein tightening of the union joint is managed based on a vibration state when the trailer is pulled for a predetermined time. A vehicle driven by an internal combustion engine;
It is equipped with a storage tank container and is equipped with a sanitary specification trailer-side piping that enhances the cleanability of the inner surface. It is connected to the storage tank container side and the supply side, and is provided with a pump that pumps the liquid in the storage tank container to the supply side.The pump is driven by the internal combustion engine, and includes a vehicle and an attachable trailer.
The storage tank container is equipped with a storage tank for storing liquid, sanitary container side piping with improved inner surface cleanability, and the container side piping connects the piping to the trailer side piping by tightening nuts. A vehicle for transporting liquid, which is connected to a trailer and mounted on a trailer. 13. The liquid transport vehicle according to claim 12, wherein the storage tank stores a chemical solvent as a liquid. 14. The liquid transport vehicle according to claim 12, wherein the union joint is controlled to be tightened based on a vibration state when the vehicle is driven and the trailer is pulled for a predetermined time. A trailer equipped with a liquid storage tank is pulled by a vehicle and transferred to a predetermined transport location, and the liquid in the liquid storage tank is pumped to a storage location by a pumping means provided in the trailer and stored, and then the liquid is discharged. Different types of liquid can be carried into the liquid storage tank by washing the storage tank and piping. When transferring different types of liquid, different types of liquid can be carried by washing the liquid storage tank and piping. A liquid transporting method comprising transporting different types of liquids in a single liquid storage tank and pumping them to a storage location at a predetermined transporting location using a pumping means provided on a trailer.

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