Laundry treating apparatus
AssigneeLG Electronics Inc.
InventorsJunghan Kim, Jungsik Park, Yanggyu Kim, Jangseok Lee
Life of this patent
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Abstract
The present disclosure relates to a laundry treating apparatus including a pressure vessel for accommodating carbon dioxide therein, a storage tank for storing carbon dioxide therein to supply carbon dioxide to the pressure vessel, a distillation tank for storing carbon dioxide discharged from the pressure vessel to remove foreign substances dissolved in carbon dioxide discharged from the pressure vessel, and a gas supply pipe for connecting the distillation tank and the pressure vessel to each other to supply gaseous carbon dioxide stored in the distillation tank to the pressure vessel.
Claims11
A laundry treating apparatus comprising:
- a pressure vessel configured to accommodate carbon dioxide therein;
- a storage tank configured to store carbon dioxide therein to supply carbon dioxide to the pressure vessel;
- a distillation tank configured to store carbon dioxide discharged from the pressure vessel to remove foreign substances dissolved in carbon dioxide discharged from the pressure vessel;
- a gas supply pipe that connects the distillation tank and the pressure vessel to each other and is configured to supply gaseous carbon dioxide stored in the distillation tank to the pressure vessel;
- a gas supply control valve positioned on the gas supply pipe and configured to open and close the gas supply pipe;
- a first supply pipe that connects a top of the storage tank to the pressure vessel and is configured to supply gaseous carbon dioxide stored in the storage tank to the pressure vessel;
- a first supply control valve located on the first supply pipe and configured to open and close the first supply pipe;
- and
- a controller configured to open the gas supply control valve until an internal pressure of the distillation tank reaches a preset reference pressure before opening the first supply control valve,
- wherein, before opening the gas supply control valve, the internal pressure of the distillation tank is higher than the preset reference pressure, and a pressure of the pressure vessel is lower than an atmospheric pressure.
A laundry treating apparatus, comprising:
- a pressure vessel configured to accommodate carbon dioxide therein;
- a storage tank configured to store carbon dioxide therein to supply carbon dioxide to the pressure vessel;
- a distillation tank configured to store carbon dioxide discharged from the pressure vessel to remove foreign substances dissolved in carbon dioxide discharged from the pressure vessel;
- a gas supply pipe that connects the distillation tank and the pressure vessel to each other and is configured to supply gaseous carbon dioxide stored in the distillation tank to the pressure vessel;
- a gas supply control valve positioned on the gas supply pipe and configured to open and close the gas supply pipe;
- a first supply pipe that connects a top of the storage tank to the pressure vessel and is configured to supply gaseous carbon dioxide stored in the storage tank to the pressure vessel;
- a first supply control valve located on the first supply pipe and configured to open and close the first supply pipe;
- a controller configured to open the gas supply control valve until an internal pressure of the distillation tank reaches a preset reference pressure before opening the first supply control valve;
- and
- a vacuum pump for discharging air inside the pressure vessel,
- wherein the controller is configured to operate the vacuum pump to make an internal pressure of the pressure vessel lower than an atmospheric pressure before opening the gas supply control valve.
Dependencies are inferred from the claim text.