JP3057041U - Solvent filtration device and dry cleaning device provided with the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple, inexpensive, and easy-to-handle device that prevents sludge adhering to a filter from adversely affecting other solvent liquids when replacing a filter in a solvent filtration device. SOLUTION: A double-tube cylindrical element such as a paper filter or a non-woven fabric filter having a cylindrical shape with an outer peripheral surface and an inner peripheral surface formed in a fold shape is placed in a slightly larger cylindrical case, and the inner diameter of the case and the element are adjusted. By mounting on the rail so that the gap at the outer periphery of the element is the same, and allowing the solvent to flow into the element from the hole opened between the fold at the outer periphery and the fold at the inner periphery of the element , Which are passed from the middle part of the element toward the outside and inside, and are taken out from the gap with the cylindrical case and the center part of the element, and the solvent filtration device of this structure is used to store the solvent for washing clothes. The one used for the dry cleaning device equipped with a base tank, a pump for circulating the solvent, a solvent filtration device, a carbon tank, and a rotating drum for washing clothes. I do.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to improvements in a solvent filtration device and a dry cleaning device.

[0002]

[Prior art]

 Dry cleaning machines consist of a base tank, solvent circulation pump, solvent filtration filter, carbon tank, clothes washing drum, button trap, base tank, etc. for the cleaning solvent. The clothes are washed while circulating.

At this time, one method in a solvent filtration device is to attach diatomaceous earth (soil having a myriad of holes) as a filtering agent to a screen made of wire mesh or the like, form a filtration layer, and form a soiled solvent. In this method, the solvent does not pass when the amount of dirt attached to the filtration layer reaches a certain amount, so that the circulation of the solvent is stopped and the screen is shaken, and the filtration on the screen is performed. The dirt is removed by sieving the agent, and a new diatomaceous earth filter layer is formed on the screen again to filter the solvent again.

[0004] Another type is a cartridge filter system in which a solvent is filtered by an element, and sludge generated by washing the clothes with fiber waste and dirt accumulates outside the filter paper of the element, and when the accumulated dirt reaches a certain amount, the solvent passes. In this method, the circulation of the solvent is stopped, and the solvent is filtered while replacing the element with a new one.

[0005] The former method, a filter using diatomaceous earth, was installed on early machines when dry cleaning machines began to appear because running costs were not required. Diatomaceous earth containing dirt from cleaning is sticky and has a bad smell due to dirt. The latter type, the cartridge filter type, has a high running cost, but is easy to handle, and is currently the mainstream of filtration filters for dry cleaning machines.

[0006] The present applicant has proposed a solvent filtering apparatus and a dry cleaning apparatus in which the inflow of the solvent and the removal of the filtering agent are performed in the latter manner by the reverse action, which is disclosed in Utility Model Registration No. 3050880. Registered.

[0007]

[Problems to be solved by the invention]

 The above proposal is excellent in that odors and solvent dirt are drastically reduced because dirt and sludge are not discharged to the outside of the solvent filtration device, and therefore, dirt and sludge are not mixed into the base tank. Although effective, the present invention is an improvement in which the above element has a special structure and eliminates a large number of through holes drilled in the pipe shaft employed as a means for feeding the solvent into the inside described above. It is a proposal.

[0008]

[Means for Solving the Problems]

 In the present invention, a double-tubular element, such as a paper filter or a non-woven cloth filter, which is formed in a cylindrical shape with an outer peripheral surface and an inner peripheral surface formed in a pleated shape, is placed in a slightly larger cylindrical case. The element is mounted on the rail so that the gap between the outer circumference of the element and the outer circumference is the same, and the solvent flows into the element through the hole formed between the outer fold and the inner circumference of the element. As a result, the element is passed from the middle part of the element toward the outside and the inside, and is taken out from the gap with the cylindrical case and the center part of the element. Used in dry cleaning equipment that includes a base tank for storing solvent for use, a pump for circulating the solvent, a solvent filtration device, a carbon tank, and a rotating drum for washing clothes. It is assumed that was.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic longitudinal sectional view of a solvent filtering device according to the present invention, wherein 1 is a cylindrical cartridge case, 2 is a solvent inlet provided at one end of the case, and 3 is a solvent inlet. Opening / closing lids 4 at the other end are solvent outlets provided on the outer peripheral surface side. Reference numeral 5 denotes a tightening shaft for an element, which will be described later, attached to the center of the case 1 in the longitudinal direction. It is designed to be attached together with the holding metal 7.

Reference numeral 8 denotes an element receiving seat on which the element tightening shaft 5 is mounted at the center on the solvent inflow side, and a solvent inflow slit s is formed at a predetermined distance so as to surround the shaft. .

Reference numeral 9 denotes an element made of paper or nonwoven fabric formed in a double tube shape having an outer diameter slightly smaller than the inner diameter of the cylindrical cartridge case 1 and having an outer peripheral surface and an inner peripheral surface folded. The element tightening shaft 5 is positioned at the center, and is inserted into the inner wall of the cartridge case 1 so as to have a predetermined gap w by using an element guide rail (not shown). The element holder 8 and the opening / closing lid 3 are tightened and fixed from the side of the opening / closing lid 3 using the element presser fitting 7 and the tightening handle 6. At this time, the outer fold and inner fold of the element are fixed. The solvent inflow slits s are arranged at the corresponding positions between them. Reference numeral 10 denotes the solvent interposed between the element receiving seat 8 and the element holding member 7. It is a packing for preventing leakage. FIG. 2 is an explanatory view taken along the line xx of FIG.

In the illustrated example, the elements 9 are accommodated in the cartridge case 1 in two rows. However, the rows can be provided in an appropriate row, and the packing 10 is similarly interposed between adjacent elements. To do. In the drawing, reference numeral 11 denotes a discharge valve for discharging the residual filtered solvent in the cartridge case 1 into the base tank when the solvent filtering device is incorporated in the dry cleaning device.

FIG. 3 is a schematic explanatory view in which the above-mentioned solvent filtration device is attached to a dry cleaning device, wherein 12 is a base tank, 13 is a solvent pump, 14 is a carbon tank, 15 is a clothes washing drum, and 16 is a clothes washing drum. A button trap, 17 is a liquid supply switching valve, 18 is a drain valve, and 19 is an overflow pipe.

When the pump is turned on, a solvent pump 13 is driven to pump the solvent from the base tank 12, and the solvent is filtered by the element 9 of the solvent filtration device. After further deodorizing and decoloring at 14, the liquid is returned to the base tank 12 via the liquid supply switching valve 17, is again pumped by the solvent pumping pump 13, and is filtered by the element 9 in the solvent filtering device. Can be repeated.

Next, when clothes to be washed are put into the drum 15 and the operation switch is turned on, the liquid supply switching valve 17 is closed and the solvent is sent to the washing drum 15, and washing is performed while rotating in the drum together with the clothes. In this case, the solvent is discharged together with dirt (fibrous waste and sludge) by the overflow pipe 19, a large dust is removed by the button trap 16, and the circuit returns to the base tank 12. Thus, the solvent returning to the base tank 12 is again pumped up by the solvent pumping pump 13 and the action of being filtered by the element 9 in the solvent filtering device is repeated, and the filtered sludge is deposited on the surface of the element. It will be attached.

When the washing is completed, the liquid supply switching valve 17 is opened to stop the flow of the solvent into the washing drum 15, and the drain valve 18 is opened to allow the solvent in the washing drum 15 to return into the base tank 12. Also, the washing drum is rotated at a high speed, and the solvent contained in the clothes is returned into the base tank 12.

By performing this operation for a certain period of time, it becomes necessary to replace the element 9 in the solvent filtration device. For this purpose, the opening / closing lid 3 is opened, the element tightening handle 6 is rotated in the reverse direction, and the element is removed together with the element presser fitting 7, and the entire element 9 is taken out and replaced with a new one. Therefore, dust and sludge k adhering to the element are directly removed to the outside.

[0018]

[Effect of the invention]

 The present invention is configured as described above. The configuration of the element having a double tubular shape has an advantage that the filtration area of the filter paper can be increased and the use time of the element can be extended. And the sludge never drains out of the solvent filtration system. Accordingly, dust and sludge are not mixed into the base tank as a whole of the dry cleaning apparatus, so that there is an effect that odor and dirt of the solvent are drastically reduced.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional explanatory view of a solvent filtration device according to the present invention.

FIG. 2 is a sectional view taken along the line xx in FIG. 1;

FIG. 3 is a schematic sectional explanatory view of a dry cleaning device provided with the solvent filtering device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge case 2 Solvent inlet 3 Opening / closing lid 4 Solvent outlet 5 Element tightening shaft 6 Tightening handle 7 Element presser fitting 8 Element receiving seat 9 Element 10 Packing 12 Base tank 13 Solvent pump 14 Carbon tank 15 Wash tank 16 Button trap 17 Supply liquid switching valve 18 Drain valve 19 Overflow pipe s Solvent inflow slit

Claims (2)

[Utility model registration claims] 1. A double-tube tubular element such as a paper filter or a nonwoven fabric filter having a cylindrical outer peripheral surface and an inner peripheral surface formed in a pleated shape, into a slightly larger cylindrical case, having a case inner diameter. Mounting on the rail so that the gap at the outer periphery of the element is the same, and allowing the solvent to flow into the element from the hole opened between the fold at the outer periphery and the inner periphery of the element A solvent filtering device characterized in that it is configured to pass from the middle part of the element to the outside and the inside, and to be taken out from the gap with the cylindrical case and the center part of the element. 2. A dry cleaning apparatus comprising a base tank for storing a solvent for washing clothes, a pump for circulating the solvent, a solvent filtering apparatus, a carbon tank, a rotating drum for washing clothes, and the like. 2. A dry cleaning apparatus according to claim 1, wherein: