Solvent purification apparatus
A purification device and solvent technology, which is applied to washing devices, chemical instruments and methods, mobile filter element filters, etc., can solve problems such as time-consuming
Active Publication Date: 2012-05-23
HAIER GRP CORP +1
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Problems solved by technology
Therefore, depending on the fact that the number of cleaning operations of the dry cleaning machine reaches a predetermined number of times, in order to clean the filter device in the distiller, it is necessary to manually operate the distiller when the number of cleaning operations reaches the predetermined number of times, or to modify the dry cleaning machine. In order to automatically input the information on the number of cleaning operations from the dry cleaning machine to the solvent purification device, it takes time and effort in either case
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no. 1 example
[0087] In the first embodiment, regarding performing the regeneration process of the first filter device 8 (specifically, the second regeneration process), in order to judge whether the cleaning operation has been performed to the above-mentioned predetermined number of cleaning operations (which becomes the first filter device 8 purification period), the control unit 46 performs the following control. In the solvent purification device 3, a pressure switch 26 is attached to the first filter device 8 in connection with this control (refer to figure 1 and image 3 ).
[0088] The pressure switch 26 detects the pressure of the solvent flowing into the container 30 of the first filter unit 8 (rotary disc filter 36). This pressure change (the pump pressure of the pump 7) is turned on (ON) or off (OFF). The pressure switch 26 uses a preset predetermined pressure as a threshold, and outputs a detection signal that turns on when the received pressure exceeds the threshold and turn...
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The invention provides a solvent purification device, which can detect times of cleaning operation through a cleaning device through a simple structure, and executes purification of the filter device periodically. In the solvent purification apparatus, a pressure switch detects pressure of solvent flowing into a first filter device in the circulation path. Therefore, the solvent purification device can detect times of cleaning operation executed by the dry-cleaning machine based on the output of the pressure switch. Consequently, the control portion can determine purification period of the first filter device based on the output of the pressure switch in a solvent purification device. As a result, even without modification to the dry-cleaning machine, the solvent purification device can detect times of cleaning operation executed by the dry-cleaning machine and purifies a first filter device periodically based on a simple structure of arranging a pressure switch in the solvent purification device.
Description
technical field [0001] The present invention relates to a solvent cleaning device for cleaning solvents used in cleaning devices such as dry cleaning machines. Background technique [0002] For example, in dry cleaning machines used in cleaning facilities, in order to repeatedly use the solvent soiled by cleaning laundry, a solvent purifier for purifying the soiled solvent is provided together (for example, refer to Patent Document 1). The solvent purification device includes a filter device for filtering the solvent and a distiller for distilling and purifying the solvent. [0003] In the filter device of Patent Document 1, a rotary disc filter is used. [0004] The rotary disc filter is configured to include: a hollow shaft rotatably provided in the filter device; and a plurality of disc-shaped filter parts fitted on the outside of the hollow shaft. The contaminated solvent received in the filter device flows out of the filter device through the inside of the hollow shaf...
Claims
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IPC IPC(8): D06F43/08B01D33/21B01D33/44B01D35/143B01D37/04
Inventor 野吕胜山口阳
Owner HAIER GRP CORP