KR20140138732A - Liquid-gas transport vehicle - Google Patents

Liquid-gas transport vehicle Download PDF

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Publication number
KR20140138732A
KR20140138732A KR20147025824A KR20147025824A KR20140138732A KR 20140138732 A KR20140138732 A KR 20140138732A KR 20147025824 A KR20147025824 A KR 20147025824A KR 20147025824 A KR20147025824 A KR 20147025824A KR 20140138732 A KR20140138732 A KR 20140138732A
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KR
South Korea
Prior art keywords
liquefied gas
transportation vehicle
tank
gas transportation
secondary battery
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KR20147025824A
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Korean (ko)
Inventor
아키라 요시노
신고 구니타니
Original Assignee
에어 워터 가부시키가이샤
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Publication of KR20140138732A publication Critical patent/KR20140138732A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/22—Tank vehicles
    • B60P3/224—Tank vehicles comprising auxiliary devices, e.g. for unloading or level indicating
    • B60P3/225—Adaptations for pumps or valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0171—Trucks

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The liquefied gas can be transferred to the storage tank of the storage by using the electric pump mounted on the liquefied gas transportation vehicle itself even if the electric power can not be secured in the storage for storing the liquefied gas transported to the liquefied gas transportation vehicle, And a liquefied gas storage tank to be mounted or a liquefied gas transportation vehicle which does not need to raise and lower the internal pressure of the storage tank. The liquefied gas transportation vehicle includes a tank (T) for storing a liquefied gas and a liquefied gas transportation vehicle having an electric pump (P) for discharging the liquefied gas in the tank (T) to the outside, A lithium ion secondary battery (B 2 ) for driving the battery (P), and a power source such as a capacitor.

Description

[0001] LIQUID-GAS TRANSPORT VEHICLE [0002]

The present invention relates to a liquefied gas transportation vehicle such as a tank lorry for transporting a liquefied gas such as liquefied natural gas.

Liquefied gas, such as liquid nitrogen, liquid oxygen, liquid argon, liquefied natural gas (LNG), and liquefied petroleum gas (LPG), can be supplied from a manufacturing plant that manufactures the liquefied gas to customers And transported by means of transportation. As one of the transportation means, for example, a liquefied gas transportation vehicle such as a tank lorry can be mentioned. 15A, the liquefied gas transportation vehicle is provided with a tank T for containing liquefied gas and an electric pump P for discharging the liquefied gas in the tank T to the outside. The electric pump P comprises a pump main body P 0 and a drive motor M 0 for driving the pump main body P 0 . 15A, reference symbol "E" denotes an engine that applies a rotational force to a driving wheel (tire) W; The symbol "G" is a generator (alternator) driven by the power of the engine E; The symbol "B 0 " is a lead acid battery (battery) that is electrically connected to the generator (alternator G) (see the broken line 1 in the drawing) and stores electricity generated by the generator (alternator G).

In addition to the above-mentioned liquefied gas transportation vehicle driven only by the engine E, a liquefied gas transportation vehicle employing a plug-in hybrid as shown in Fig. 15B has recently been proposed. This is configured such that the engine E and the power motor M 1 are connected in series and apply rotational force to the drive wheels (tires) W by the power of either or both of them. The power consists motor (M 1) is electrically connected to the lithium ion secondary battery (B 1) (see the dotted line 2), so as to rotate driven by the power from the lithium ion secondary battery (B 1). Further, it is rotated by the rotation of the power motor (M 1), a drive wheel (tire) in conditions that do not give a rotational force to the (W), the power the motor (M 1) of the engine (E), that (To act as a generator). Also, the power motor M 1 is configured so as to generate (to act as a generator) to generate regenerative energy. Then, the electricity generated by the power motor (M 1) is acting as a generator is made to be accumulated in the lithium ion secondary battery (B 1). The tank T for storing the liquefied gas and the electric pump P for discharging the liquefied gas in the tank T to the outside are the same as the liquefied gas transportation vehicle shown in Fig. 15A.

The transportation of the liquefied gas by the liquefied gas transportation vehicle is carried out as follows. That is, the liquefied gas produced in the above-mentioned manufacturing plant is first charged into the tank T of the liquefied gas transportation vehicle. Subsequently, the liquefied gas transportation vehicle is driven to a store owned by the consumer (enterprise or the like). Thereafter, the drive motor M 0 of the electric pump P is electrically connected to a power source (alternating current power source) 20 provided in the storage in the storage (Fig. 15A and Fig. 15B (See, for example, FIG. 2 of Patent Document 1), the liquefied gas in the tank T of the liquefied gas transportation vehicle is sent out, To the storage tank. In this way, the transportation of the liquefied gas is completed.

On the other hand, as the liquefied gas transportation vehicle, there has conventionally been used a vehicle not provided with the electric pump (pressurized type). The delivery of the liquefied gas in the tank T in this liquefied gas transportation vehicle is carried out by raising the pressure in the tank T and lowering the pressure in the storage tank of the reservoir and using the pressure difference therebetween. Then, after completion of the discharge, the pressure in the tank T of the liquefied gas transportation vehicle is lowered to the original state (about the atmospheric pressure), and the pressure in the storage tank of the storage is raised to the original state.

Japanese Patent Application Laid-Open No. 2007-237877

However, in some cases, sufficient power for driving the electric pump P may not be obtained depending on the storage. That is, even if the power source 20 is not provided in the storage or the power source 20 is provided, the electric power is used for other purposes, so that it is insufficient for driving the electric pump P, The power source 20 may not be used. In such a case, in the liquefied gas transportation vehicle provided with the electric pump P, liquefied gas in the tank T can not be delivered and can not be transferred to the storage tank of the storage.

On the other hand, in the liquefied gas transportation vehicle (pressurized type) not provided with the electric pump P, since power from the outside is not required to deliver the liquefied gas in the tank T as described above, It is possible to transfer the liquefied gas in the tank T to the storage tank of the storage. However, it is necessary to lower the pressure in the tank T after raising the pressure in the tank T when the liquefied gas in the tank T is delivered as described above. It takes time. Further, from the necessity of increasing the pressure in the tank T, it is necessary to increase the peripheral wall of the tank T so as to withstand the pressure increase. As a result, the weight of the tank T increases, and the amount of liquefied gas that can be accommodated in the tank T is reduced correspondingly (the load weight is restricted in transportation by the vehicle) . Further, it is necessary to lower the pressure in the storage tank of the storage at the time when the liquefied gas is being delivered, so that the supply of the liquefied gas can not be received from the storage tank. If the supply of the liquefied gas can not be stopped, it is necessary to additionally add a switching storage tank.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a liquefied gas- And it is an object of the present invention to provide a liquefied gas transportation vehicle which can transfer gas to a storage tank of the storage and which does not need to lift the internal pressure of the liquefied gas storage tank or the storage tank to be mounted.

In order to achieve the above object, a liquefied gas transportation vehicle according to the present invention includes a tank for containing a liquefied gas and an electric pump for discharging the liquefied gas in the tank to the outside, and a power source for driving the electric pump As shown in Fig.

Since the liquefied gas transportation vehicle of the present invention is equipped with a power source for driving the electric pump, it is possible to drive the electric pump by using the power source, and to deliver the liquefied gas in the tank. Therefore, the liquefied gas transportation vehicle of the present invention can transfer the transported liquefied gas to the storage tank of the storage even if it can not secure power in the storage. When the electric pump and the power source are mounted on a conventional pressurized type that does not include the electric pump, the electric pump can be driven using the power source as described above, and the liquefied gas in the tank can be sent out It is not necessary to raise or lower the internal pressure of the tank or the storage tank of the reservoir that receives the liquefied gas. Therefore, the time required for feeding the liquefied gas can be shortened. Further, it is not necessary to lower the pressure in the storage tank of the consumer (enterprise or the like) at the time when the liquefied gas is being delivered, and the liquefied gas can be supplied from the storage tank.

Particularly, when the power source is at least one of a battery and a capacitor, the power source can be charged from a charger installed at a manufacturing site of the liquefied gas or a generator (alternator) installed in the liquefied gas transportation vehicle.

In the case where power is supplied to the power source by an AC generator or a motor driven by an engine mounted on the liquefied gas transportation vehicle and a charger installed outside the liquefied gas transportation vehicle, From the alternator or motor, it is possible to store electricity in the accumulator from the charger provided at the manufacturing site of the liquefied gas during the stoppage.

1 is an explanatory diagram schematically showing a first embodiment of a liquefied gas transportation vehicle according to the present invention.
2 is an explanatory diagram schematically showing a second embodiment of a liquefied gas transportation vehicle according to the present invention.
3 is an explanatory diagram schematically showing a third embodiment of the liquefied gas transportation vehicle of the present invention.
4 is an explanatory diagram schematically showing a fourth embodiment of a liquefied gas transportation vehicle according to the present invention.
5 is an explanatory diagram schematically showing a fifth embodiment of the liquefied gas transportation vehicle of the present invention.
6 is an explanatory diagram schematically showing a sixth embodiment of a liquefied gas transportation vehicle according to the present invention.
7 is an explanatory diagram schematically showing a seventh embodiment of a liquefied gas transportation vehicle according to the present invention.
Fig. 8 is an explanatory diagram showing a schematic view of an eighth embodiment of the liquefied gas transportation vehicle of the present invention.
9 is an explanatory diagram schematically showing a ninth embodiment of a liquefied gas transportation vehicle according to the present invention.
10 is an explanatory view schematically showing a tenth embodiment of the liquefied gas transportation vehicle of the present invention.
11 is an explanatory view schematically showing an eleventh embodiment of a liquefied gas transportation vehicle according to the present invention.
12 is an explanatory diagram schematically showing a twelfth embodiment of the liquefied gas transportation vehicle of the present invention.
13 is an explanatory diagram schematically showing a thirteenth embodiment of the liquefied gas transportation vehicle of the present invention.
14 is an explanatory diagram schematically showing a fourteenth embodiment of a liquefied gas transportation vehicle according to the present invention.
Fig. 15A is an explanatory view schematically showing a conventional liquefied gas transportation vehicle, showing an engine-driven vehicle, and Fig. 15B shows a plug-in hybrid vehicle.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

Fig. 1 shows a first embodiment of a liquefied gas transportation vehicle according to the present invention. The liquefied gas transportation vehicle of the present embodiment mounts the lithium ion secondary battery (B 2 ) as a power source for driving the electric pump (P) already installed in the conventional liquefied gas transportation vehicle shown in Fig. 15A, (See the broken line 3 in Fig. 1) to the generator (alternator G). In addition, the lithium ion secondary battery (B 2) is a direct current with respect to power source, the motor-driven pump (P) is already installed, the drive motor of the (M 0) because it is AC power supply, the lithium ion secondary battery (B 2) and the electric A control device C including an inverter is provided between the drive motor M 0 of the pump P and the control device C is connected to the lithium ion secondary battery B 2 and the electric pump P, is a is electrically connected to the drive motor (M 0) (see a broken line 4, 5 in Fig. 1). The other parts are the same as those of the conventional liquefied gas transportation vehicle shown in Fig. 15A, and the same parts are denoted by the same reference numerals. The liquefied gas transportation vehicle of this embodiment itself has a driving force (driving wheel W) and a bed N on which a liquefied gas receiving tank T is mounted.

An example of a method of transporting liquefied gas by the liquefied gas transportation vehicle according to the first embodiment will be described. In this example, an electric car charger 10 is installed in advance in a manufacturing factory for producing liquefied natural gas or the like. Then, the first charging the lithium ion secondary battery (B 2) wherein the liquefied gas produced in factories liquefied gas was filled in the tank (T) of the transport vehicle, also in the charger 10 (2 in Fig. 1 Dot chain line 11). Then, the liquefied gas transporting vehicle is driven to a store owned by a consumer (enterprise or the like) of the liquefied gas. Electricity generated by the generator (alternator G) is stored in the already-installed lead accumulator (battery) B 0 and the lithium ion secondary battery B 2 . Thereafter, in the tank, the electric pump (P) is driven by the electric power of the lithium ion secondary battery (B 2 ), the liquefied gas in the tank (T) of the liquefied gas transportation vehicle is sent out, Transfer to storage tank. In this way, the transportation of the liquefied gas is completed.

As described above, in the liquefied gas transportation vehicle of the first embodiment, the power of the lithium ion secondary battery (B 2 ) mounted on the vehicle itself is used without using the power source 20 (see Fig. 15A) The liquefied gas that has been transported can be transferred to the storage tank of the storage. The lithium ion secondary battery B 2 is charged at a rate of 100% by both of the charging by the charger 10 at the above-mentioned manufacturing site and the accumulation by the power generation of the alternator (alternator G) %.

More specifically, examples of the lithium ion secondary battery (B 2 ) include those for electric vehicles (for example, LEV50 manufactured by GS Yuasa).

The charger 10 for charging the lithium ion secondary battery B 2 may be, for example, an electric vehicle, or may be a rapid charger (for example, TQVC 500M3 or TQVC200M3 manufactured by Takasasa Kagaku Co., Ltd.) , Or a normal charger of a normal charging speed.

As the inverter of the control device (C), for example, a general industrial device can be mentioned.

The drive motor M 0 of the already installed electric pump P has a capacity of 7.5 to 30 kW or so, depending on the capacity of the tank T of the liquefied gas transportation vehicle. For example, FCKLW21 And the like.

Fig. 2 shows a second embodiment of the liquefied gas transportation vehicle of the present invention. In the liquefied gas transportation vehicle of this embodiment, the lead accumulator (battery) B 0 that has already been installed is removed and the generator (alternator G) is removed from the liquefied gas transportation vehicle of the first embodiment shown in Fig. ) Is stored only in the lithium ion secondary battery (B 2 ). The other parts are the same as those of the first embodiment, and the same parts are denoted by the same reference numerals.

Regarding the transportation of the liquefied gas, similarly to the first embodiment, in the second embodiment, the electric power of the lithium ion secondary battery (B 2 ) is used for driving the electric pump (P) in the reservoir , The liquefied gas that has been transported can be transferred to the storage tank of the storage without using the power source 20 (see Fig. 15A) of the storage.

Fig. 3 shows a third embodiment of a liquefied gas transportation vehicle according to the present invention. The liquefied gas transportation vehicle of this embodiment is provided with a second lithium ion secondary battery (B 2 ) as a power source for driving the electric pump (P) already installed in the liquefied gas transportation vehicle employing the plug- And the generator (electric motor M 1 ) already provided in the second lithium ion secondary battery B 2 is electrically connected (see the broken line 6 in FIG. 3). The already installed (first) lithium ion secondary battery (B 1 ) for the power motor (M 1 ) that gives rotational power to the driving wheel (tire) 2 lithium ion secondary battery (B 2 ) and the above-mentioned electric vehicle (for example, LEV 50 manufactured by GS Yuasa) are used.

As an example of the method of transporting the liquefied gas by the liquefied gas transportation vehicle according to the third embodiment, firstly, the liquefied gas produced in the above-mentioned manufacturing plant is charged into the tank T of the liquefied gas transportation vehicle, The charger 10 charges the first and second lithium ion secondary batteries B 1 and B 2 (see the two-dot chain line 11 in FIG. 3). Next, the liquefied gas transportation vehicle is caused to travel to a reservoir owned by a consumer (enterprise or the like) of the liquefied gas, and electricity generated in the generator (power motor (M 1 )) is supplied to the first and second lithium Ion secondary batteries (B 1 , B 2 ). Thereafter, the electric pump (P) is driven by electric power from the second lithium ion secondary battery (B 2 ) in the storage, the liquefied gas in the tank (T) of the liquefied gas transportation vehicle is delivered, To a storage tank of the reservoir. In this way, the transportation of the liquefied gas is completed.

As described above, in the third embodiment as well, the power of the second lithium ion secondary battery (B 2 ) mounted, without using the power source 20 (see Fig. 15B) of the storage, Gas can be transferred to the storage tank of the reservoir. The second lithium ion secondary battery B 2 is charged by the charger 10 at the above manufacturing site and by the power generation of the generator (power motor M 1 ) Is set to 100%.

Fig. 4 shows a fourth embodiment of the liquefied gas transportation vehicle according to the present invention. In the liquefied gas transportation vehicle of the above embodiment, in the liquefied gas transportation vehicle of the third embodiment shown in Fig. 3, the already installed first lithium ion secondary battery B 1 is removed and the generator (power motor M 1 ) Is stored only in the second lithium ion secondary battery (B 2 ). The other parts are the same as those of the third embodiment, and the same parts are denoted by the same reference numerals.

As for the transportation of the liquefied gas, in the fourth embodiment, similarly to the third embodiment, the electric power of the second lithium ion secondary battery (B 2 ) is used to drive the electric pump (P) So that the transported liquefied gas can be transferred to the storage tank of the storage without using the power source 20 (see FIG. 15B) of the storage.

Fig. 5 shows a fifth embodiment of a liquefied gas transportation vehicle according to the present invention. The liquefied gas transportation vehicle of this embodiment includes a tractor head (towing vehicle) K having an engine E and a driving force (driving wheel W), a trailer chassis a conventional liquid liquefier having a trailer chassis D and a container S placed on the trailer chassis D and accommodating the tank T and the electric pump P, The lithium ion secondary battery (B 2 ) which is a power source for the electric pump (P) is mounted on the container (S) in a gas transportation vehicle. The other parts are the same as those of the first embodiment, and the same parts are denoted by the same reference numerals. It has the same function and effect as the first embodiment.

Fig. 6 shows a sixth embodiment of the liquefied gas transportation vehicle of the present invention. In the liquefied gas transportation vehicle of this embodiment, in the liquefied gas transportation vehicle of the fifth embodiment shown in Fig. 5, the lithium ion secondary battery B 2 is mounted on the tractor head K. The other parts are the same as those of the fifth embodiment, and the same parts are denoted by the same reference numerals. It has the same function and effect as those of the fifth embodiment.

Fig. 7 shows a seventh embodiment of the liquefied gas transportation vehicle of the present invention.

6, the lead-acid battery (battery) B 0 that has already been installed is removed and the generator (alternator G) is disconnected from the liquefied gas transportation vehicle of the sixth embodiment shown in Fig. Is stored in only the lithium ion secondary battery (B 2 ). The other parts are the same as those of the sixth embodiment, and the same parts are denoted by the same reference numerals.

Fig. 8 shows an eighth embodiment of the liquefied gas transportation vehicle of the present invention. Liquefied gas carrier for in this embodiment is a liquefied gas carrier for employing a plug-in hybrid, the engine (E), the power the motor (M 1), the power the motor (M 1) is already installed (No. 1) a lithium ion for the a secondary battery (B 1) and the driving force and (driven wheels (W)) for having tractor head (K) and does not have a driving force trailer chassis (D) to be towed to the tractor head (K), wherein the trailer chassis (D) (Second) lithium ion secondary battery which is a power source for the electric pump P is mounted on a liquefied gas transportation vehicle provided with the tank (T) and the container (S) containing the electric pump (P) (Power motor M 1 ) already mounted on the second lithium ion secondary battery B 2 is mounted on the container S by electrically connecting the battery B 2 to the container S. The other parts are the same as those of the third embodiment, and the same parts are denoted by the same reference numerals. It has the same function and effect as those of the third embodiment.

Fig. 9 shows a ninth embodiment of a liquefied gas transportation vehicle according to the present invention. The liquefied gas transportation vehicle of this embodiment is the one in which the lithium ion secondary battery B 2 is mounted on the tractor head K in the liquefied gas transportation vehicle of the eighth embodiment shown in Fig. The other parts are the same as those of the eighth embodiment, and the same parts are denoted by the same reference numerals. It has the same function and effect as those of the eighth embodiment.

Fig. 10 shows a tenth embodiment of the liquefied gas transportation vehicle of the present invention. In the liquefied gas transportation vehicle of this embodiment, in the liquefied gas transportation vehicle of the ninth embodiment shown in Fig. 9, the already installed first lithium ion secondary battery B 1 is removed and the generator (power motor M 1 ) Is stored only in the second lithium ion secondary battery (B 2 ). The other parts are the same as those of the ninth embodiment, and the same parts are denoted by the same reference numerals.

Fig. 11 shows an eleventh embodiment of the liquefied gas transportation vehicle of the present invention. The liquefied gas transportation vehicle of this embodiment is a conventional liquefied gas transportation vehicle shown in Fig. 15A in which a lithium ion secondary battery (B 2 ) is mounted as a power source for driving an already installed electric pump (P) That is, in the first embodiment shown in Fig. 1, the lithium ion secondary battery (B 2 ) and the already provided generator (not electrically connecting the alternator (G)) are electrically connected. The same reference numerals are given to the same parts as those of the conventional liquefied gas transportation vehicle shown in the drawings.

As for the transportation of the liquefied gas, the liquefied gas produced by the manufacturing plant is charged in the tank T of the liquefied gas transportation vehicle, and in the charger 10, And the ion secondary battery B 2 is charged (see the two-dot chain line 11 in FIG. 11). The electric power of the lithium ion secondary battery B 2 is used for driving the electric pump P in the storage and the power of the liquefied secondary battery B 2 is transferred without using the power source 20 (see FIG. 15A) Gas can be transferred to the storage tank of the reservoir.

Fig. 12 shows a twelfth embodiment of the liquefied gas transportation vehicle of the present invention. The liquefied gas transportation vehicle of this embodiment is a vehicle in which a second lithium ion secondary battery (B 2 ) is mounted as a power source for driving an electric pump (P) already installed in the conventional liquefied gas transportation vehicle shown in Fig. (In other words, in the third embodiment shown in Fig. 3, the second lithium ion secondary battery B 2 is not electrically connected to the generator (the power motor M 1 ) already provided). The other parts are the same as those of the conventional liquefied gas transportation vehicle shown in Fig. 15B, and the same parts are denoted by the same reference numerals.

As for the transportation of the liquefied gas, the liquefied gas produced by the manufacturing plant is charged into the tank T of the vehicle for transporting liquefied gas, and in the charger 10, The first and second lithium ion secondary batteries B 1 and B 2 are charged (refer to the two-dot chain line 11 in FIG. 12). The electric power of the second lithium ion secondary battery B 2 is used to drive the electric pump P in the storage and the electric power of the second lithium ion secondary battery B 2 is used to drive the power source 20 (see FIG. 15A) The liquefied gas can be transferred to the storage tank of the reservoir.

Fig. 13 shows a thirteenth embodiment of the liquefied gas transportation vehicle of the present invention. In the fifth embodiment shown in Fig. 5, the liquefied gas transportation vehicle of this embodiment does not electrically connect the lithium ion secondary battery B 2 and the generator (alternator G) already provided , And the lithium ion secondary battery (B 2 ) is mounted as a power source for driving an electric pump (P) already installed in a conventional trailer type liquefied gas transportation vehicle). The other parts are the same as those of the fifth embodiment, and the same parts are denoted by the same reference numerals. The liquefied gas can be transported in the same manner as in the eleventh embodiment.

Fig. 14 shows a fourteenth embodiment of the liquefied gas transportation vehicle of the present invention. In the eighth embodiment shown in Fig. 8, the liquefied gas transportation vehicle according to this embodiment is different from the liquefied gas transportation vehicle according to the first embodiment in that the second lithium ion secondary battery B 2 is not electrically connected to the generator (the power motor M 1 ) (That is, the second lithium ion secondary battery (B 2 ) is mounted as a power source for driving the already installed electric pump (P) in the trailer type liquefied gas transportation vehicle employing the plug-in hybrid). The other parts are the same as those of the eighth embodiment, and the same parts are denoted by the same reference numerals. The liquefied gas can be transported in the same manner as in the twelfth embodiment.

Although the lithium ion secondary battery B 2 is used as the power source of the electric pump P in each of the above embodiments, other power source may be used as long as charging and discharging are possible. For example, a nickel hydrogen secondary battery may be used, Or both of the secondary battery and the capacitor may be used in combination.

Further, in each embodiment as a drive motor (M 0) of the motor-driven pump (P), was used that of an AC power supply that is already installed, and the drive motor (M 0), the power lithium ion secondary battery (DC power supply) as the (B 2 ), the drive motor M 0 may be replaced with a DC power supply. In this case, the AC-DC converter is not required in the control device C electrically connected to the drive motor M 0 . The DC power source drive motor M 0 may be, for example, YCD221 / 101, YCD221 / 231 manufactured by Meidensha or LW15 manufactured by Fuse Co.,

In each of the above-described embodiments, the charger 10 for charging the lithium ion secondary battery (B 2 ) is provided in the production site of the liquefied gas, but may not be provided. In this case, the lithium ion secondary battery B 2 is charged by the power generation in the generator (alternator G, power motor M 1 ) during running.

In the fifth and eighth embodiments, the lithium ion secondary battery B 2 that is the power source of the electric pump P is mounted on the container S, and in the sixth, seventh, and ninth embodiments The lithium ion secondary battery B 2 is mounted on the tractor head K. In these embodiments, the lithium ion secondary battery B 2 may be mounted on the trailer chassis D.

Next, an embodiment will be described. However, the present invention is not limited to the embodiments.

Example

[Example 1]

[Liquefied gas transportation vehicles]

A conventional liquefied gas transportation vehicle equipped with a tank of 13000 liters capacity and an electric pump (drive motor: FCKLW21 manufactured by Toshiba Corporation) was mounted on a truck (20 ton vehicle) In the same manner as in the first embodiment, a control device including a lithium ion secondary battery (LEV50 made by GS Yuasa) and an inverter was mounted as the power source for the electric pump.

[Transport of liquefied gas]

In a manufacturing plant for manufacturing liquefied natural gas, the produced liquefied natural gas was charged into a tank of the liquefied gas transportation vehicle, and the lithium ion secondary battery was charged at a filling rate of 80% at a rapid charger (TQVC500M3, manufactured by Takasasa Corporation) . Subsequently, the liquefied gas transportation vehicle was driven to the store of the consumer for 300 km. During the running, the lithium ion secondary battery was charged by the power generation of the generator (alternator) already installed in the liquefied gas transportation vehicle, and the charging rate became 100%. Thereafter, the electric pump was driven by the electric power of the lithium ion secondary battery in the storage, the liquefied gas in the tank of the liquefied gas transportation vehicle was delivered, and the liquefied gas was transferred to the storage tank of the storage. The charging rate of the lithium ion secondary battery at the completion of the transportation was 20%.

[Example 2]

In addition, the lead accumulator (battery) already installed in the first embodiment is removed, and electricity generated from the generator (alternator) is stored only in the lithium ion secondary battery (see the second embodiment shown in Fig. 2). Using this liquefied gas transportation vehicle, the liquefied gas was transported in the same manner as in the first embodiment. As a result, the liquefied gas that has been transported can be transferred to the storage tank of the storage by using the power of the lithium ion secondary battery without using the power source of the storage for driving the electric pump. Further, it took about 70 minutes to transfer the liquefied gas from the tank of the liquefied gas transportation vehicle to the storage tank of the reservoir, but it was possible to shorten the time even more than about 90 minutes in the case of the conventional pressing type .

Although the embodiment has been described in the concrete form of the invention, the embodiment is merely an example and is not to be construed as being limited. Various modifications that are obvious to those skilled in the art are included within the scope of the present invention.

(Industrial availability)

INDUSTRIAL APPLICABILITY The present invention can be applied to a liquefied gas transportation vehicle capable of transporting liquefied gas without worrying about securing of power in a storage of a transportation destination.

B 2 : Lithium ion secondary battery
P: electric pump
T: tank

Claims (5)

A tank for containing the liquefied gas; And
And an electric pump for discharging the liquefied gas in the tank to the outside,
And a power source for driving the electric pump is mounted. The method according to claim 1,
Wherein the power source is at least one of a battery and a capacitor. The method according to claim 1,
Wherein the electric power supply to the power source is performed by an alternator or motor driven by an engine mounted on the liquefied gas transportation vehicle and a charger installed outside the liquefied gas transportation vehicle, . 4. The method according to any one of claims 1 to 3,
Wherein the liquefied gas transporting vehicle itself includes a driving force and a platform on which the tank is mounted. 4. The method according to any one of claims 1 to 3,
Wherein the liquefied gas transportation vehicle comprises:
A towing vehicle having a driving force;
A bogie having no driving force to be towed to the towing vehicle; And
And a container placed on the bogie and accommodating the tank,
The electric pump is mounted on the bogie,
Wherein the power source is mounted on the tow vehicle or the container.
KR20147025824A 2012-03-23 2013-03-13 Liquid-gas transport vehicle KR20140138732A (en)

Applications Claiming Priority (3)

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JP2012067972A JP5902523B2 (en) 2012-03-23 2012-03-23 Vehicle for transporting liquefied gas
JPJP-P-2012-067972 2012-03-23
PCT/JP2013/056902 WO2013141096A1 (en) 2012-03-23 2013-03-13 Liquid-gas transport vehicle

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JP2013199176A (en) 2013-10-03

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