Extracting apparatus, and extracting-unit manufacturing method
AssigneeHitachi, Ltd.
InventorsTadashi Sano, Sachio Sekiya
Life of this patent
Estimating the term…
Abstract
An extracting apparatus includes: a first phase transition section that causes a phase transition of an extraction solvent from a gas to a liquid; a second phase transition section that causes a phase transition of the extraction solvent from a liquid to a gas; a treatment tank that stores a treated material, and receives an inflow of the extraction solvent that has been liquefied in the first phase transition section; a first valve that is provided between the second phase transition section and the treatment tank; and a second valve that is provided between the first phase transition section and the treatment tank. The second phase transition section is connected with a recovery valve.
Claims10
An extracting apparatus comprising:
- a first heat exchanger configured to cause a phase transition of an extraction solvent from a gas to a liquid;
- a second heat exchanger configured to cause a phase transition of the extraction solvent from a liquid to a gas;
- a first treatment tank that stores a treated material, and receives an inflow of the extraction solvent that has been liquefied in the first heat exchanger;
- a first valve that is provided between the second heat exchanger and the first treatment tank;
- a second valve that is provided between the first heat exchanger and the first treatment tank, wherein
- the second heat exchanger is connected with a recovery valve;
- a second treatment tank that is provided in parallel with the first treatment tank;
- a third valve that is provided between the second heat exchanger and the second treatment tank;
- and
- a fourth valve that is provided between the first heat exchanger and the second treatment tank, wherein
- the first valve and the third valve are provided in parallel,
- the second valve and the fourth valve are provided in parallel;
- and
- the first heat exchanger and the second heat exchanger are configured to perform a refrigeration cycle in the extracting apparatus;
- a compressor provided on the refrigeration cycle;
- and
- a pump configured to output a liquid-phase of the extraction solvent.
An extracting apparatus comprising:
- a first heat exchanger configured to cause a phase transition of an extraction solvent from a gas to a liquid;
- a second heat exchanger configured to cause a phase transition of the extraction solvent from a liquid to a gas;
- a treatment tank that stores a treated material, and receives an inflow of the extraction solvent that has been liquefied in the first heat exchanger;
- a first valve that is provided between the second heat exchanger and the treatment tank;
- a second valve that is provided between the first heat exchanger and the treatment tank;
- wherein the second heat exchanger is connected with a recovery valve;
- a discharge valve that discharges a gasified extraction solvent in the treatment tank;
- a reuse compressor that is provided being connected to the discharge valve;
- and
- a cooler that is provided being connected to the reuse compressor, and is connected to an upstream side of the treatment tank, wherein
- the gasified extraction solvent is liquefied by passing through the reuse compressor and the cooler.
An extract manufacturing method that uses a phase-transition cycle of butane, the extract manufacturing method comprising:
- an extraction step of extracting an extract from a treated material contained in a first treatment tank;
- a containing step of, during the extraction step, providing a treated material contained in a second treatment tank in parallel with the first treatment tank;
- a transfer step of, after the extraction step, transferring a liquefied butane in the first treatment tank to the second treatment tank;
- and
- before a recovery step of recovering the extract, a condensation step of closing a valve upstream of the first treatment tank, opening a valve located upstream of the second treatment tank, and driving a compressor in a refrigeration cycle of the butane.
Dependencies are inferred from the claim text.