Pressure-regulating device, transportation vehicle, and pressure difference-controlling unit

A transporting vehicle for transporting a container capable of storing a molten metal and supplying the molten metal to an outside using a pressure difference, comprising:

• an engine for driving the vehicle;
• a generator driven by the engine;
• a compressor driven by an electricity generated by the generator;
• a tank for storing a compressed gas compressed by the compressor;
• and
• a pressure controlling portion, having an interface portion detachably disposed against the container, for applying a pressure in the container via the interface portion, the pressure control portion including
• a flow passage for supplying the compressed gas from the compressor to the container
• a first switching valve, being inserted into the passage, capable of manually switching a first mode that enables the passage of the gas between the compressor side and the container side and a second mode that enables the passage of the gas between the container side and the outside,
• an exhausting portion for exhausting a gas from the container, and
• a second switching valve for switching a pressure applying mode for applying a pressure to the container and an exhausting mode for exhausting the gas from the container,
• the flow passage including
• a first path for connecting the compressor and the second switching valve,
• a second path for connecting the exhausting portion and the second switching valve, and
• a third path for connecting the second switching valve through to the container side,
• the first switching valve being inserted into the third path.

A transporting vehicle for transporting a container capable of storing a molten metal and supplying the molten metal to an outside using a pressure difference, comprising:

• a motor for driving the vehicle;
• a battery for supplying an electricity to the motor;
• a compressor driven by the electricity in the battery;
• a tank for storing a compressed gas compressed by the compressor;
• and
• a pressure controlling portion, having an interface portion detachably disposed against the container, for applying a pressure in the container via the interface portion, the pressure control portion including
• a flow passage for supplying the compressed gas from the compressor to the container,
• a first switching valve, being inserted into the passage, capable of manually switching a first mode that enables the passage of the gas between the compressor side and the container side and a second mode that enables the passage of the gas between the container side and the outside,
• an exhausting portion for exhausting a gas from the container, and
• a second switching valve for switching a pressure applying mode for applying a pressure to the container and an exhausting mode for exhausting the gas from the container,
• the flow passage including
• a first path for connecting the compressor and the second switching valve,
• a second path for connecting the exhausting portion and the second switching valve, and
• a third path for connecting the second switching valve through to the container side,
• the first switching valve being inserted into the third path.

A transporting vehicle for transporting a container capable of storing a molten metal and supplying the molten metal to an outside using a pressure difference, comprising:

• a compressor;
• a tank for storing a compressed gas compressed by the compressor;
• an air tube, having an interface portion detachably disposed against the container on one end, and being connected through to the tank;
• a flow passage for supplying the compressed gas from the compressor to the container, the flow passage having a line between the tank and the air tube, in which a gas flows;
• a first leak valve connected to the line;
• and
• a filter disposed on the line and between the first leak valve and the interface portion;
• a first switching valve, being inserted into the passage, capable of manually switching a first mode that enables the passage of the gas between the compressor side and the container side and a second mode that enables the passage of the gas between the container side and the outside;
• an exhausting portion for exhausting a gas from the container:
• and
• a second switching valve for switching a pressure applying mode for applying a pressure to the container and an exhausting mode for exhausting the gas from the container,
• the flow passage including
• a first path for connecting the compressor and the second switching valve,
• a second path for connecting the exhausting portion and the second switching valve, and
• a third path for connecting the second switching valve through to the container side,
• the first switching valve being inserted into the third path.

A transporting vehicle for transporting a container capable of storing a molten metal and supplying the molten metal to an outside using a pressure difference, comprising:

• a compressor;
• a tank for storing a compressed gas compressed by the compressor;
• a vacuum pump;
• an air tube, having an interface portion detachably disposed against the container on one end;
• a first switching portion capable of manually switching a first mode that enables the passage of the gas between the compressor side and the container side and a second mode that enables the passage of the gas between the container side and the outside;
• a second switching portion;
• a first line becoming a flow passage of a gas flowing between the tank and the second switching portion;
• a second line becoming a flow passage of a gas flowing between the vacuum pump and the second switching portion;
• and
• a third line becoming a flow passage of a gas flowing between the second switching portion and the air tube,
• wherein the first switching portion is inserted into the third line being inserted with a switching valve, and
• wherein the second switching portion switches a connection between the first line and the third line, and the connection between the second line and the third line.

A pressure difference controlling unit being mounted on a transporting vehicle, holding a container capable of storing a molten metal and supplying the molten metal to an outside using a pressure difference, comprising:

• a compressor;
• a tank for storing a compressed gas compressed by the compressor;
• and
• a pressure controlling portion, having an interface portion detachably disposed against the container, for applying a pressure in the container via the interface portion with the compressed gas, the pressure control portion including
• a flow passage for supplying the compressed gas from the compressor to the container,
• a first switching valve, being inserted into the passage, capable of manually switching a first mode that enables the passage of the gas between the compressor side and the container side and a second mode that enables the passage of the gas between the container side and the outside,
• an exhausting portion for exhausting a gas from the container, and
• a second switching valve for switching a pressure applying mode for applying a pressure to the container and an exhausting mode for exhausting the gas from the container,
• the flow passage including
• a first path for connecting the compressor and the second switching valve,
• a second path for connecting the exhausting portion and the second switching valve, and
• a third path for connecting the second switching valve through to the container side,
• the first switching valve being inserted into the third path.