Title:
INITIAL OPERATION CONTROL METHOD FOR DRY CLEANING APPARATUS USING COMBUSTIBLE SOLVENT
Document Type and Number:
Japanese Patent JP3172585
Kind Code:
B2
Abstract:
PURPOSE: To greately shorten the time required for decompression of a washing/ drying system by starting a decompression of the washing/drying system thus far kept at an atmospheric pressure instantaneously in practical use to reduce the pressure to a set value from the state when a start switch is ON.
CONSTITUTION: In a dry cleaning apparatus, the pressure is reduced in a washing/drying system 1 and when a pressure detection means 6 detects that the degree of the decompression reaches a set pressure, a nitrogen gas feeding valve 3 is opened with a microcomputer control section 7 so as to feed nitrogen gas to the washing/drying system 1 from a nitrogen gas tank 4. Then, when the pressure inside the washing/drying system 1 reaches the atmospheric pressure, the feeding valve 3 is closed and the operation is shifted to a washing process. In this case, the washing/drying system 1 is connected to a distillation system 2 with a pipeline 13 having an air balance valve 12 and, in the initial operation time of the apparatus, the air balance valve 12 is opened only for a specified time length and closed to equalize the pressures of both the systems 1 and 2 quickly. Thereafter, a vacuum pump 10 is driven to reduce the pressure in the washing/drying system 1 to a set value.
Inventors:
Shigeru Furuya
Hiroshi Nagoya
Hiroshi Nagoya
Application Number:
JP16618892A
Publication Date:
June 04, 2001
Filing Date:
June 24, 1992
Export Citation:
Assignee:
Tokyo Senboshi Machinery Co., Ltd.
International Classes:
B01J19/14; D06F43/00; D06F43/08; (IPC1-7): D06F43/08
Domestic Patent References:
| JP3228800A | ||||
| JP61179192A | ||||
| JP3228799A | ||||
| JP55128691U |
Attorney, Agent or Firm:
Masami Akimoto