Internal air adjustment device
AssigneeDaikin Industries, Ltd.
InventorsMotomi Nishimoto, Naohiro Tanaka
Life of this patent
Estimating the term…
Abstract
An internal air adjustment device supplies low-oxygen-concentration air to a storage, and maintains the oxygen concentration of internal air in a target oxygen concentration range that is lower than a reference concentration. The internal air adjustment device performs an oxygen-concentration restoration operation. The oxygen-concentration restoration operation is an operation of increasing the oxygen concentration of the internal air to the reference concentration from the target oxygen concentration range. In the oxygen-concentration restoration operation, a controller of the internal air adjustment device regulates the flow rate of external air that is supplied into the interior of the storage.
Claims7
An internal air adjustment device that supplies low-oxygen-concentration air having an oxygen concentration lower than an oxygen concentration of external air of a storage to the storage, and that maintains an oxygen concentration of internal air of the storage in a target oxygen concentration range lower than a reference concentration, and
- that is constituted to perform an oxygen-concentration restoration operation of increasing the oxygen concentration of the internal air of the storage to the reference concentration from the target oxygen concentration range,
- the internal air adjustment device comprising:
- at least one pump connected to the storage;
- a valve between an interior of the storage to an exterior of the storage;
- and
- a controller that is configured to, in the oxygen-concentration restoration operation, regulate at least one of a flow rate and the oxygen concentration of the low-oxygen-concentration air that is supplied into the interior of the storage or a flow rate of the external air that is supplied into the interior of the storage by controlling the at least one pump and the valve,
- the controller being configured to regulate the at least one of the flow rate and the oxygen concentration of the low-oxygen-concentration air that is supplied into the interior of the storage or the flow rate of the external air that is supplied into the interior of the storage to cause a speed of increase in the oxygen concentration of the internal air to be less than or equal to a predetermined maximum speed.
An internal air adjustment device that supplies low-oxygen-concentration air having an oxygen concentration lower than an oxygen concentration of external air of a storage to the storage, and that maintains an oxygen concentration of internal air of the storage in a target oxygen concentration range lower than a reference concentration, and
- that is constituted to perform an oxygen-concentration restoration operation of increasing the oxygen concentration of the internal air of the storage to the reference concentration from the target oxygen concentration range,
- the internal air adjustment device comprising:
- at least one pump connected to the storage;
- a valve between an interior of the storage to an exterior of the storage;
- and
- a controller that is configured to, in the oxygen-concentration restoration operation, regulate at least one of a flow rate and the oxygen concentration of the low-oxygen-concentration air that is supplied into the interior of the storage or a flow rate of the external air that is supplied into the interior of the storage by controlling the at least one pump and the valve,
- the oxygen-concentration restoration operation being performed before a door of the storage is opened.
Dependencies are inferred from the claim text.