JPH05192493A - Drycleaning machine with cartridge filter purifying mechanism - Google Patents

Abstract

PURPOSE:To enable the purifying of a filter being lift in a filter device incorporated in a drying cleaning machine without exchanging thereof by making the filter device form a purifying mechanism not via a washing tank and a solvent tank selectively when hot air is fed from a drying mechanism through a core pipe. CONSTITUTION:A filter device 3 using a cartridge filter 33 is arranged between a solvent tank 2 and a washing tank 1. The outlet side 32 of a solvent of the filter device of a purifying mechanism is connected direct to the side of a hot air delivery port from a drying mechanism 4 to be switched to a hot air intake port while the side 31 of an inlet of the solvent of the filter device is cut off from the solvent tank 2 to be switched to a hot air outlet connected direct to the side of the inlet of the drying mechanism 4. Hot air is sent in from the drying mechanism 4 through the core pipe 34 of the cartridge filter 33 having the core pipe 34 communicating therewith in the filter device 3. This allows the filter device 3 to form the purifying mechanism not via the washing- tank 1 and the solvent tank 2 selectively.

Description

Detailed Description of the Invention

[0001]

An object of the present invention is to use a cartridge type filter incorporated in a dry cleaning machine continuously for a predetermined time, and at the stage when the filter function starts to be impaired, the filter is not replaced and incorporated into the dry cleaning machine. The present invention aims to provide a dry cleaning machine with a cleaning mechanism for a cartridge filter having a novel structure that enables the cleaning of the harmful solvent remaining in the filter and the cleaning of the filter itself while the filter is being stopped. Is.

[0002]

2. Description of the Related Art As a result of the development of various substances that enhance the cleaning effect, in the current cleaning equipment, instead of petroleum-based solvents, which have a relatively high flash point with organic solvents, non-combustible synthetic materials such as barchlorol ethylene are used. Solvents and those that use fluorene-based bulkylene are becoming mainstream. In dry cleaning using these solvents, unlike water used in washing with water, the solvent itself is expensive, so the solvent that has been used and soiled passes through the filtration device built into the equipment each time. After removing insoluble dusts and cleaning it, it is circulated by the washer, and when it is in a state where soluble dirt in the solvent accumulates beyond the limit, it is distilled and degreased with a centrifuge. I try to use it again and again.

The limit of repeated use of the solvent is usually 7 to 8 when the washing amount per device is about 30 kg.
It is about 00 times, and if it is more than that, the filter for removing the insoluble dust may be clogged and the cleaning effect may be hindered. Therefore, it is necessary to replace the filter. This filter has a cylindrical shape in which adsorbent such as activated carbon is loaded in the space around the core pipe, and the outer peripheral surface is covered with a water-permeable sheet such as Japanese paper or non-woven fabric.Most of the recent filters are cleaning machines. It is formed as a cartridge type that can be freely taken in and out of the filtration device.

The filter that has clogged up and cannot perform its filtering function has accumulated unacceptably insoluble dust that has fallen off from the laundry and at the same time impregnated with and remains with the solvent. The weight of the filter used (washing amount 30 kg / dual use) is about 15 kg, whereas the weight of the filter that cannot perform the filtering function reaches about 45 kg, and the weight of the filter in this state is It means that it is filled with 30 kg of insoluble dust and solvent.

Looking at the breakdown of the residue amounting to 30 kg in the above example, it has been found that about 5 kg is insoluble dust, and the remaining 25 kg is a solvent. The filter that lost the filtration function while leaving the solvent of is not only uneconomical to throw away the solvent, but since the solvent Perchlor ethylene and Barkrene are designated as harmful substances, We are faced with the troubling problem of being obliged to carry and incinerate by a professional company, and prohibiting arbitrary disposal.

[0006] In fact, in some regions, there are no recovery companies that process these special products, and in the case of Yamagata Prefecture, for example, there is no choice but to rely on a specialized specialist in Niigata Prefecture. Moreover, the recovery cost is 18
Since it costs 0 yen / kg (45 × 180 = 8100 yen / piece in the case of the previous example), it is not only troublesome to handle at a large-scale cleaning shop with a large number of uses, but also in terms of cost. The burden is not negligible.

Therefore, in order to deal with such a situation,
The applicant of the present application has already completed, as the invention of Japanese Patent Publication No. 2-256458, a purifying device for a cartridge filter which has lost the filtering function, and almost completely recovers the solvent remaining in the filter to eliminate the harmful effects of harmful substances. In addition, as a result, the weight of the entire filter was reduced as much as possible, and the cost that had to be paid to a professional collection company was greatly reduced.

The present invention has been completed based on the above-mentioned technical idea of the invention while continuing the development and research for further improvement. The already proposed one is the filtering function. The purpose of the cleaning was to remove the cartridge filter from the dry cleaning machine once, but in this case, the cleaning is done while the cartridge filter is left in the filtration device built into the E. It was made possible,
In addition to simplifying the cleaning work of the cartridge filter, by utilizing a part of the already installed mechanism of E, the economical burden is minimized as shown below. It is a dry cleaning machine with a cartridge filter purification mechanism that is configured.

[0009]

As will be understood from the typical embodiment shown in the drawings, the dry cleaning machine with a cartridge filter purifying mechanism of the present invention basically has the following structure. That is, the washing mechanism in which the filtering device 3 by the cartridge filter 33 is arranged between the solvent tank 2 and the washing tub 1 and the drying mechanism for circulating clean hot air in the washing tub 1 are incorporated in independent circuits. In the dry cleaning machine M, the filter device solvent outlet side 32 of the cleaning mechanism is directly connected to the hot air delivery port side of the drying mechanism to switch to the hot air intake port, and the filter device solvent inlet side 31 is connected to the solvent tank 2 To the hot air outlet that is directly connected to the inlet side of the drying mechanism, and the filtration device 3
The core pipes 3 of the cartridge filters 33, 33, ... Arranged in series in which the core pipes 34 communicate with each other.
By sending hot air from the drying mechanism through 4,
Alternatively, the filtering device 3 is a dry cleaning machine with a cartridge filter cleaning mechanism that forms a cleaning mechanism that does not pass through the washing tub 1 and the solvent tank 2.

The cleaning mechanism adopted in the most general dry cleaning machine in recent years is the solvent R in the solvent tank 2.
Is pumped up and passed through the filtering device 3 to filter dust and dirt in the solvent R and send it to the washing tub 1. After the dirt of the laundry is removed by the solvent R, it is collected in the button trap 11 to collect solid foreign matters. Of the solvent R after being precipitated in the solvent tank 2 again.
3, which corresponds to the piping portion indicated by stripes in FIG. 3, in which the circuit in which the solvent R is forcedly circulated according to the arrow is not connected to the circuit for the drying mechanism described later, It is generally configured as an independent circuit, and their corresponding cleaning mechanisms can all be the subject of this invention.

Recently, the filtration device 3 in this mechanism is provided with a disposable cut ridge filter 33.
The plurality of pressure tanks 37 are connected and arranged in series so as to communicate with each other by the respective core pipes 34. The solvent R has a mechanism in which impurities are removed in the process of being sent from the outer periphery of the filters 33 to the core pipes 34. ing. The number of the pressure tanks 37 used and the number of the cut ridge filters 33 accommodated in the pressure tanks 37 are those selected at the design stage according to the cleaning ability of the dry cleaning machine M. Needless to say, it is not constant.

The drying mechanism is usually a heating spot 7 for producing a hot air for drying clothes, such as a dust filter 4, a fan 5 for forced circulation, a cooling spot 6 for solvent recovery, and a solvent R to evaporate the solvent R from the washing tub 1. Of the solvent R released from the laundry C according to the arrow, and a portion corresponding to the hatched piping portion shown in FIG. It is the most common that the hot air produced by heating the clean airflow after separating and recovering the solvent R from is continuously circulated and is independently configured as an individual device, That is, the structure, function, number of combinations, etc. of the dust filter 4, the fan 5, the cooling spot 5, the heating spot 6, and the devices associated therewith can be freely designed as appropriate. All conventional drying mechanisms including those designed changes are encompassed drying mechanism of the present invention.

In the existing dry cleaning machine M having the above-mentioned cleaning mechanism and drying mechanism incorporated therein,
The purifying mechanism of the cartridge filter 33 switches the filter device solvent outlet side 32 of the cleaning mechanism to the hot air intake port by directly connecting it to the hot air delivery port side of the drying mechanism, and also connects the filter device solvent inlet side 31 to the solvent tank. 2 is cut off and switched to the hot air outlet directly connected to the inlet side of the drying mechanism, and the cartridge pipes 33, 33, ... Which are arranged in series so that the core pipes 34 communicate with each other in the filtering device 3 are connected to the drying mechanism through the core pipe 34. It is formed by making it possible to selectively realize a circuit for sending hot air.

In order to realize the cleaning mechanism by switching, the existing dry cleaning machine M is used.
In the case of the cleaning mechanism and the drying mechanism, each of which is supposed to be formed as an independent circuit, between the predetermined locations, that is, the first location, the middle of the circuit from the filtering device 3 to the washing tub 1 in the cleaning mechanism ( The connection circuit A is provided between the filter device solvent outlet side 32) and the middle of the circuit from the outlet side of the heating spot 6 to the washing tub 1 in the drying mechanism (hot air outlet side).
The second part is in the middle of the circuit from the solvent tank 2 to the filter device 3 in the cleaning mechanism (filter device solvent inlet side 31) and in the drying mechanism from the solvent tank 2 to the dryer mechanism inlet side. The connection circuit B must be provided between the two.

Moreover, the respective connection circuits A and B are
A valve and other known switching devices are combined and connected to the circuit that constitutes the cleaning mechanism and the circuit that constitutes the drying mechanism. That is, in the case of the connection circuit A, one end thereof is provided between the pair of switching devices a and b arranged in parallel on the hot air feeding side of the drying mechanism, and the other end thereof is connected to the filter device solvent outlet of the cleaning mechanism. The connection circuit B is connected between a pair of switching devices c and d arranged in parallel on the side 32, and one end of the connection circuit B is provided in the middle of the circuit from the solvent tank 2 to the inlet side of the drying mechanism. The other end of the switching device e on the drying mechanism inlet side is connected to the switching device f provided on the filtering device solvent inlet side 31 of the cleaning mechanism (the switching device g is for cleaning the position facing the switching device f). The filter device solvent inlet side 31 is provided between the switching devices f and g provided on the circuit side of the mechanism.

The purifying mechanism thus formed collects impurities discharged in the purifying process of the cartridge filters 33, 33 ,. 8 and a water separator 9 (a water recovery tank 91 and a solvent recovery tank 9 installed below the cooling spot 6 to separate and recover only the solvent R from the solvent solution recovered by the cooling spot 6 from the water.
And 2) are included. The solvent R recovered in the solvent recovery tank 92 of the water separator 9
In addition to adopting a configuration in which the solvent recovery tank 92 is piped and connected to the solvent tank 2 for direct reuse, the solvent R may be indirectly transferred from the solvent recovery tank 92 to the solvent tank 2. , May be appropriately selected.

When the cleaning mechanism is selected and configured as described above, the filtering device 3 realizes a circuit that does not pass through the washing tub 1 and the solvent tank 2. The dry cleaning machine M of the present invention is an existing dry cleaning machine in addition to the one which is built as a new dry cleaning machine M by incorporating all of the above-described configurations in advance, and is a cartridge filter 33, 33, ...
A dry cleaning machine M having a cleaning mechanism having a filtering device 3 that employs ... And a drying mechanism separate from the cleaning mechanism,
It also includes those which are appropriately improved and repaired to be formed. In addition, the drying mechanism, that is, the washing tub 1 to the dust filter 4, the fan 5 for forced circulation, the cooling spot 6 for solvent recovery, and the heating spot 7 for evaporating the solvent R to generate hot air for drying clothes are reached. The mechanism composed of the circuit is formed as a separate unit from the so-called conventional drying mechanism for drying the laundry, which is connected to the selection tank 1.
Therefore, the dry cleaning machine M having a structure in which a drying mechanism is arranged in parallel is also included in the dry cleaning machine M of the present invention. Thus, the cleaning mechanism is operated to realize the dry cleaning machine M capable of efficiently performing the cleaning operation of the cartridge filter.

[0018]

Embodiment 1 Hereinafter, the dry cleaning machine M of the present invention will be explained more specifically with reference to the embodiments representative of the present invention shown in the drawings. As can be understood from the circuit diagrams shown in FIGS. 1, 2 and 3, the dry cleaning machine with a cartridge filter cleaning mechanism of the present invention has a solvent tank 2 having a pump 21 around a washing tub 1. , Two filtering devices 3 in which three cartridge filters 33 are connected in series are arranged in parallel, a dust filter 4 as a drying mechanism, a fan 5 for forced circulation, a cooling spot 6 for solvent recovery, and a solvent R are evaporated, A heating spot 7 for producing hot air for drying clothes, and a filtering device 3
A waste liquid tank for storing the waste liquid discharged when purifying the cartridge filters 33, 33, ... Inside, and a water separator for separating and collecting the solvent R contained in the hot air when operating the purifying mechanism. 9 are arranged and are connected and piped as follows.

First, the solvent tank 2 is disposed below the washing tub 1 via the button trap 11, and operates a washing mechanism to store a predetermined amount of the solvent R for washing clothes in the washing tub 1. .. The filtering devices 3 and 3 have the solvent inlet side 31,
31 is connected between the valve g on the pump 21 side of the solvent tank 2 and the valve f on the connecting circuit 2 side, and the solvent outlet side 3
Both of the valves 2 and 32 are connected to the washing tub 1 with a pair of valves c and d disposed in the middle. The dust filter 4, the fan 5 for forced circulation, the cooling spot 6 for solvent recovery, and the heating spot 7 for producing hot air are connected and connected in series in this order, and the dust filter 4, which is the hot air intake side, is valved midway. e
Is arranged and connected to the washing tub 1, and piping is performed, and the heating spot 7 on the hot air sending side is also connected to the washing tub 1 by arranging valves a and b in the middle, and piping is performed. A circuit for returning to the washing tub 1 again via the device is configured.

The connecting circuit 1 has a valve a at one end thereof.
And b, and the other is connected and piped between valves c and d. One end of the connection circuit 2 is connected to the valve f arranged at the portion to which the filter device 3 is connected, and the other end is connected between the valve e and the dust filter 4 for piping. The waste liquid tank 8 is below the filtering device 3 and is connected and piped with a valve h arranged from the bottom thereof. The water separator 9 is configured to separate and collect the solvent R and the water W depending on the difference in specific gravity. The upper side of the water separator 9 is connected to a water tank 91, and the lower side thereof is connected to a solvent tank 92 by piping to connect the solvent tank 92. The valve R is connected to the solvent tank 2 by connecting the valve i to the piping, so that the solvent R recovered in the solvent tank 92 is directly returned to the solvent tank 2.

With the dry cleaning machine M of this embodiment having the above-mentioned circuit, in order to wash clothes first, all the valves a, b, e, f, h and i are closed and the other valves are opened. The solvent R from the solvent tank 2 is pumped up by the pump 2, and the cartridge filter 3 is supplied from the solvent inlet side 31 of the filtration device 3 via the opened valve g.
The valves a, b which are closed at the outlets 32 of the solvent of the filter are removed by removing impurities in the process of being sent to the outer circumference of the core pipe 34, 33 ,.
Therefore, the solvent R cannot pass through the connection circuit 1 and is sent to the washing tub 1 through the open valves c and d, and after the clothes C in the washing tub 1 are cleaned, the button is pressed. The solvent tank 1 is used as the solvent R in which the solid foreign matter is separated by the trap 11.
Then, the clothes C are pumped up again to repeat the same cycle as above to wash the clothes C. In FIG. 3, the striped piping portion is circulated as indicated by an arrow, that is,
The circuit constitutes the same cleaning mechanism as before.

Next, the valves c, d and f (g and h are irrelevant in this case) are closed, and the others are opened to dry the slanted pipe portion shown in FIG. In the cooling spot, hot air containing a solvent is cooled to form a solvent solution and sent to the water separator 9, and the solvent R separated from the water W is released from the solvent tank 92 (or The solvent tank 2 is returned to the container (open appropriately). In this way, the dry cleaning machine M of this embodiment selects and operates the cleaning mechanism and the drying mechanism alternately, and while the cleaning of the clothes C is repeated, the cartridge filters 33, 33, 33 in the filtering device 3 gradually.
At the appropriate time when the filtering function of ...... has a limit and cleaning may be hindered, the cleaning of the cartridge filters 33, 33 ,. carry out.

Cartridge filters 33, 33, ...
In the dry cleaning machine M shown as an example, the purifying mechanism of FIG. 1 causes the hot air generated in the heating spot 7 to circulate according to the arrow of the circuit portion including the dot seeding display and the wavy line display in FIG. By closing e and g and opening the others, the drying mechanism is connected to the filtering device 3 on the cleaning mechanism side through the connection circuit A, the solvent outlet side 32 of the filtering device 3 to the hot air inlet, and Solvent inlet side 31
Is changed to a hot air outlet, and hot air can be passed through the cartridge filters 33, 33, ... As a flow that is completely opposite to the flow of the solvent R when the cleaning mechanism is operated. , ... will be purified.

The flow of hot air in the filter device 3 is shown in the enlarged cross-sectional view of the main part of FIG. That is, the three cartridge filters 33, 33, which have deteriorated or lost the filtering function,
33 are connected through joint packings 35, 35, ..., By which the core pipes 34, 34 ,.
, Which are connected in series from the hot air intake (solvent outlet side 32) to the end and the hot air outlet (solvent inlet side 31) are hermetically sealed and housed in the filtering device 3. As described above, the hot air is In the process of being sent into the filtering device 3 through the core pipe 34 on the solvent outlet side 32 that originally changed to the hot air intake port and passing from the center of the cartridge filters 33, 33, 33 toward the outer periphery, various kinds of stabs were stuck in the washing process. Impurities are released and flow down into the filtering device 3, are guided to the waste liquid tank 8 and are collected, while the solvent evaporated by the hot air is guided to the drying mechanism side through the connection circuit B and liquefied at the cooling spot 6. Becomes a solvent solution, reaches the water separator 9, and is reused as the solvent R.

(Function and Effect) The cleaning machine of the present invention having the above-mentioned structure makes use of the circuits constituting the cleaning mechanism and the drying mechanism for realizing the original functions as they are, and selectively selects their essential points. The cartridge filter 33, 33, ... Enclosed in the filtering device 3 realizes a purifying mechanism by connecting and using it.
Can be purified without taking it out of the filtration device 3 at all, and the work efficiency can be significantly improved as compared with the case where a purification device prepared separately from the conventional cleaning machine is used. Not only that, it is excellent because it can completely eliminate the risk of outflow of harmful substances during the operation of taking out and moving the cartridge filters 33, 33, ....

The dry cleaning machine M of the present invention is a cleaning mechanism and a drying mechanism originally provided in the dry cleaning machine, and if the cartridge filter 33 is adopted as a filtering device in the cleaning mechanism, Since these mechanisms can be utilized as they are, not only can they be used as a newly-produced dry cleaning machine M, but the cartridge filters 33, 33, ... It can be utilized by improving and repairing it so that a cleaning mechanism that can be selected and used can be realized. Therefore, legal regulations can be met by investing a small amount of money into the dry cleaning machine M currently in use. You can clear it, and its economic effect will be immeasurable.

Moreover, as for the selective switching, for example, as shown in the embodiment, the connecting circuits A and B and the valves a to i necessary for selecting and using the circuits A and B are used. Since it has an extremely simple configuration that can be realized simply by combining and adopting a switching device such as, etc., there is no technical difficulty in improving and repairing the cartridge filter until now, and therefore, it is possible to shorten the time. The cartridge filter of the present invention can be surely remodeled inside, and the loss to the business can be reduced accordingly, and it can be adopted in many cleaning shops.

As described above, according to the cleaning machine of the present invention, the handling of the harmful designated solvent, which is indispensable for the cleaning industry, is extremely safe as compared with the conventional ones. In addition to being able to recover and reuse expensive harmful designated solvent, it is possible to extend the life of the cartridge filter itself, and to make great use of the conventional dry cleaning machine M. It is a very advantageous device for a cleaning company that is located in a region away from the country and is inconvenient to communicate with a specialized collection company, and is expected to be highly evaluated by those people. To be done.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a circuit in a state in which a purifying mechanism of the present invention is configured.

FIG. 2 is an enlarged sectional view of an essential part showing only a filtering device in the purification mechanism.

FIG. 3 is a circuit diagram showing a circuit in a state in which the cleaning mechanism of the present invention is configured.

FIG. 4 is a circuit diagram showing a circuit in a state in which the drying mechanism of the present invention is configured.

[Explanation of symbols]

 1 washing tub 11 same button trap 2 solvent tank 21 same pump 3 filtration device 31 same solvent inlet side 32 same solvent outlet side 33 same cartridge filter 34 same core pipe 35 same packing material 36 same closed door 37 same pressure tank 4 dust filter 5 forced Fan 6 Cooling spot 7 Heating spot 8 Waste liquid tank 9 Moisture separator 91 Water recovery tank 91 Water recovery tank 92 Solvent recovery tank A Connection circuit B Connection circuit C Laundry M Dry cleaning machine R Solvent W Water a to i switching device

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[Procedure amendment]

[Submission date] November 12, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Full text]

[Document name] Clarification

Title: Dry cleaning machine with cartridge filter purification mechanism

[Claims]

Detailed Description of the Invention

[0001]

An object of the present invention is to use a cartridge type filter incorporated in a dry cleaning machine continuously for a predetermined time, and at the stage when the filter function starts to be impaired, the filter is not replaced and incorporated into the dry cleaning machine. The present invention aims to provide a dry cleaning machine with a cleaning mechanism for a cartridge filter having a novel structure that enables the cleaning of the harmful solvent remaining in the filter and the cleaning of the filter itself while the filter is being stopped. Is.

[0002]

2. Description of the Related Art As a result of the development of various substances that enhance the cleaning effect, in the current cleaning equipment, petroleum-based solvents having a relatively high flash point with organic solvents, as well as non-combustible materials such as barchlorol ethylene, trichloroethane, etc. Many are using synthetic solvents or bulk solvents, which are fluorine-based solvents. In dry cleaning using these solvents, unlike water used in washing with water, the solvent itself is expensive, so the solvent that has been used and soiled passes through the filtration device built into the equipment each time. After cleaning by removing insoluble dust etc., it will be recirculated by the washer, and if the soluble dirt in the solvent accumulates more than the limit, it becomes impossible to use the cartridge. Will have to be replaced.

The limit of repeated use of the solvent is usually 7 to 8 when the washing amount per device is about 30 kg.
It is about 00 times, and if it is more than that, the filter for removing the insoluble dust may be clogged and the cleaning effect may be hindered. Therefore, it is necessary to replace the filter. This filter has a cylindrical shape in which adsorbent such as activated carbon is loaded in the space around the core pipe, and the outer peripheral surface is covered with a water-permeable sheet such as Japanese paper or non-woven fabric.Most of the recent filters are cleaning machines. It is formed as a cartridge type that can be freely taken in and out of the filtration device.

The filter that has clogged up and cannot perform its filtering function has accumulated unacceptably insoluble dust that has fallen off from the laundry and at the same time impregnated with and remains with the solvent. The weight of the filter used (washing amount 30 kg / dual use) is about 15 kg, whereas the weight of the filter that cannot perform the filtering function reaches about 45 kg, and the weight of the filter in this state is It means that it is filled with 30 kg of insoluble dust and solvent.

Looking at the breakdown of the residue amounting to 30 kg in the above example, it has been found that about 5 kg is insoluble dust, and the remaining 25 kg is a solvent. The filter that lost the filtration function while leaving the solvent of is not only uneconomical to throw away the solvent, but since the solvent Perchlor ethylene and Barkrene are designated as harmful substances, We are faced with the troubling problem of being obliged to carry and incinerate by a professional company, and prohibiting arbitrary disposal.

[0006] In fact, in some regions, there are no recovery companies that process these special products, and in the case of Yamagata Prefecture, for example, there is no choice but to rely on a specialized specialist in Niigata Prefecture. Moreover, the recovery cost is 18
Since it costs 0 yen / kg (45 × 180 = 8100 yen / piece in the case of the previous example), it is not only troublesome to handle at a large-scale cleaning shop with a large number of uses, but also in terms of cost. The burden is not negligible.

Therefore, in order to deal with such a situation,
The applicant of the present application has already completed a purifying device for a cartridge filter, which has lost the filtering function as the invention of Japanese Patent Application No. 2-256458, and almost completely recovers the solvent remaining in the filter to eliminate the harmful effects of harmful substances. In addition, as a result, the weight of the entire filter was reduced as much as possible, and the cost that had to be paid to a specialized collection company was greatly reduced.

The present invention has been completed based on the above-mentioned technical idea of the invention while continuing the development and research for further improvement. The already proposed one is the filtering function. The purpose was to remove the cartridge filter from the dry cleaning machine and purify it after cleaning the cartridge filter.In this case, however, the cartridge filter remains in the filtration device built into the dry cleaning machine. It is made possible to purify, further simplifies the purifying work of the cartridge filter, and economically by utilizing a part of the mechanism of the already installed dry cleaning machine. A cartridge filter purifier with the following configuration to reduce the burden as much as possible. It is a per dry cleaning machine.

[0009]

As will be understood from the typical embodiment shown in the drawings, the dry cleaning machine with a cartridge filter purifying mechanism of the present invention basically has the following structure. That is, the washing mechanism in which the filtering device 3 by the cartridge filter 33 is arranged between the solvent tank 2 and the washing tub 1 and the drying mechanism for circulating clean hot air in the washing tub 1 are incorporated in independent circuits. In the dry cleaning machine M, the filter device solvent outlet side 32 of the cleaning mechanism is directly connected to the hot air delivery port side of the drying mechanism to switch to the hot air intake port, and the filter device solvent inlet side 31 is connected to the solvent tank 2 To the hot air outlet that is directly connected to the inlet side of the drying mechanism, and the filtration device 3
The core pipes 3 of the cartridge filters 33, 33, ... Arranged in series in which the core pipes 34 communicate with each other.
By sending hot air from the drying mechanism through 4,
Alternatively, the filtering device 3 is a dry cleaning machine with a cartridge filter cleaning mechanism that forms a cleaning mechanism that does not pass through the washing tub 1 and the solvent tank 2.

The cleaning mechanism adopted in the most general dry cleaning machine in recent years is the solvent R in the solvent tank 2.
Is pumped up and passed through the filtering device 3 to filter dust and dirt in the solvent R and send it to the washing tub 1. After the dirt of the laundry is removed by the solvent R, it is collected in the button trap 11 to collect solid foreign matters. Of the solvent R after being precipitated in the solvent tank 2 again.
3, which corresponds to the piping portion indicated by stripes in FIG. 3, in which the circuit in which the solvent R is forcedly circulated according to the arrow is not connected to the circuit for the drying mechanism described later, It is generally configured as an independent circuit, and their corresponding cleaning mechanisms can all be the subject of this invention.

Recently, the filtration device 3 in this mechanism is provided with a disposable cut ridge filter 33.
The plurality of pressure tanks 37 are connected and arranged in series so as to communicate with each other by the respective core pipes 34. The solvent R has a mechanism in which impurities are removed in the process of being sent from the outer periphery of the filters 33 to the core pipes 34. ing. The number of pressure tanks 37 to be adopted and the number of cut ridge filters 33 to be stored in the pressure tank 37 are appropriately determined at the design stage according to the cleaning ability of the dry cleaning machine M. Needless to say, it is not constant.

The drying mechanism is usually a heating spot 7 for producing a hot air for drying clothes, such as a dust filter 4, a fan 5 for forced circulation, a cooling spot 6 for solvent recovery, and a solvent R to evaporate the solvent R from the washing tub 1. Of the solvent R released from the laundry C according to the arrow, and a portion corresponding to the hatched piping portion shown in FIG. It is the most common that the hot air produced by heating the clean airflow after separating and recovering the solvent R from is continuously circulated and is independently configured as an individual device, That is, the structure, function, number of combinations, etc. of the dust filter 4, the fan 5, the cooling spot 6, the heating spot 7, and the devices associated therewith can be freely designed as appropriate. All conventional drying mechanisms including those designed changes are encompassed drying mechanism of the present invention.

In the existing dry cleaning machine M having the above-mentioned cleaning mechanism and drying mechanism incorporated therein,
The purifying mechanism of the cartridge filter 33 switches the filter device solvent outlet side 32 of the cleaning mechanism to the hot air intake port by directly connecting it to the hot air delivery port side of the drying mechanism, and also connects the filter device solvent inlet side 31 to the solvent tank. The core pipes 34, 34, ... Of the cartridge filters 33, 33, .. It is formed by making it possible to selectively realize a circuit in which hot air from the drying mechanism is sent through.

In order to realize the cleaning mechanism by switching, the existing dry cleaning machine M is used.
In the case of the cleaning mechanism and the drying mechanism, each of which is supposed to be formed as an independent circuit, between the predetermined locations, that is, the first location, the middle of the circuit from the filtering device 3 to the washing tub 1 in the cleaning mechanism ( The connection circuit A is provided between the filter device solvent outlet side 32) and the middle of the circuit from the heating spot 7 outlet side to the washing tub 1 in the drying mechanism (hot air outlet side).
The second part is in the middle of the circuit from the solvent tank 2 to the filtering device 3 in the cleaning mechanism (filtering device solvent inlet side 31) and in the drying mechanism from the washing tub 1 to the drying mechanism inlet side. The connection circuit B must be provided between the two.

Moreover, the respective connection circuits A and B are
A valve and other known switching devices are combined and connected to the circuit that constitutes the cleaning mechanism and the circuit that constitutes the drying mechanism. That is, in the case of the connection circuit A, one end thereof is provided between the pair of switching devices a and b arranged in parallel on the hot air sending side of the drying mechanism, and the other end thereof is connected to the filter device solvent outlet of the cleaning mechanism. The connection circuit B is connected between a pair of switching devices c and d arranged in parallel on the side 32, and one end of the connection circuit B is provided in the middle of the circuit from the washing tub 1 to the drying mechanism inlet side. The other end of the switching device e on the drying mechanism inlet side is connected to the switching device f provided on the filtering device solvent inlet side 31 of the cleaning mechanism (the switching device g is for cleaning the position facing the switching device f). The filter device solvent inlet side 31 is provided between the switching devices f and g provided on the circuit side of the mechanism.

The purifying mechanism thus formed distills impurities discharged in the purifying process of the cartridge filters 33, 33, ..
Piping, a distillation tank 8 installed below, and a cooling spot 6
In order to separate and recover only the solvent R from the solvent solution recovered by the water, a water separator 9 (a water recovery tank 91 and a solvent recovery tank 92 installed in a pipe below the cooling spot 6).
And) are included. The solvent R recovered in the solvent recovery tank 92 of the water separator 9
In addition to adopting a configuration in which the solvent recovery tank 92 is piped and connected to the solvent tank 2 for direct reuse, the solvent R may be indirectly transferred from the solvent recovery tank 92 to the solvent tank 2. , May be appropriately selected.

When the cleaning mechanism is selected and configured as described above, the filtering device 3 realizes a circuit that does not pass through the washing tub 1 and the solvent tank 2. The dry cleaning machine M of the present invention is an existing dry cleaning machine in addition to the one which is built as a new dry cleaning machine M by incorporating all of the above-described configurations in advance, and is a cartridge filter 33, 33, ...
A dry cleaning machine M having a purifying mechanism having a filtering device 3 that employs ...
It also includes those which are formed by appropriately improving and connecting. In addition, the drying mechanism, that is, the washing tub 1 to the dust filter 4, the fan 5 for forced circulation, the cooling spot 6 for solvent recovery, and the heating spot 7 for evaporating the solvent R to generate hot air for drying clothes are reached. The mechanism composed of the circuit is formed as a separate unit from the so-called conventional drying mechanism for drying the laundry, which is connected to the washing tub 1.
Therefore, a dry cleaning machine M having a structure in which a drying mechanism is arranged in parallel is also included in the dry cleaning machine M of the present invention, and the dry cleaning machine M capable of efficiently carrying out the cleaning operation of the cartridge filter is provided. Will be realized.

[0018]

Embodiment 1 Hereinafter, the dry cleaning machine M of the present invention will be explained more specifically with reference to the embodiments representative of the present invention shown in the drawings. As can be understood from the circuit diagrams shown in FIGS. 1, 2 and 3, the dry cleaning machine with a cartridge filter cleaning mechanism of the present invention has a solvent tank 2 having a pump 21 around a washing tub 1. , Two filtering devices 3 in which three cartridge filters 33 are connected in series are arranged in parallel, a dust filter 4 as a drying mechanism, a fan 5 for forced circulation, a cooling spot 6 for solvent recovery, and a solvent R are evaporated, A heating spot 7 for producing hot air for drying clothes, and a filtering device 3
Distillation tank 8 for distilling the waste liquid discharged when purifying the cartridge filters 33, 33, ... Inside, moisture for separating and collecting the solvent R contained in the hot air when operating the purifying mechanism The separator 9 is arranged and connected and piped as follows.

First, the solvent tank 2 is disposed below the washing tub 1 via the button trap 11, and operates a washing mechanism to store a predetermined amount of the solvent R for washing clothes in the washing tub 1. .. The filtering devices 3 and 3 have the solvent inlet side 31,
31 is connected between the valve g on the pump 21 side of the solvent tank 2 and the valve f on the connection circuit B side, and the solvent outlet side 3
Both of the valves 2 and 32 are connected to the washing tub 1 with a pair of valves c and d disposed in the middle. The dust filter 4, the fan 5 for forced circulation, the cooling spot 6 for solvent recovery, and the heating spot 7 for producing hot air are connected and connected in series in this order, and the dust filter 4, which is the hot air intake side, is valved midway. e
Is arranged and connected to the washing tub 1, and piping is performed, and the heating spot 7 on the hot air sending side is also connected to the washing tub 1 by arranging valves a and b in the middle, and piping is performed. A circuit for returning to the washing tub 1 again via the device is configured.

The connecting circuit A has a valve a at one end thereof.
And b, and the other is connected and piped between valves c and d. One end of the connection circuit B is connected to the valve f arranged at the portion to which the filter device 3 is connected, and the other end is connected between the valve e and the dust filter 4 for piping. The distillation tank 8 is below the filtering device 3 and is connected with a valve h arranged from the bottom thereof.
Piped. The water separator 9 is configured to separate and collect the solvent R and the water W depending on the difference in specific gravity. The upper side of the water separator 9 is connected to a water tank 91, and the lower side thereof is connected to a solvent tank 92 by piping to connect the solvent tank 92. Valve i is connected to the solvent tank 2,
Solvent R recovered in the solvent tank 92 by piping
Is directly returned to the solvent tank 2.

With the dry cleaning machine M of this embodiment having the above-described circuit, in order to wash clothes first, all the valves a, b, e, f and h are closed and the others are opened. The solvent R from the solvent tank 2 is pumped up by the pump 21, and the cartridge filter 3 is supplied from the solvent inlet side 31 of the filtration device 3 via the opened valve g.
The valves a, b which are closed at the outlets 32 of the solvent of the filter are removed by removing impurities in the process of being sent to the outer circumference of the core pipe 34, 33 ,.
Therefore, the solvent R cannot pass through the connection circuit A and is sent to the washing tub 1 through the open valves c and d, and after the clothes C in the washing tub 1 are cleaned, the button is pressed. The solvent tank 2 is used as the solvent R in which the solid foreign matter is separated by the trap 11.
Then, the clothes C are pumped up again to repeat the same cycle as above to wash the clothes C. In FIG. 3, the striped piping portion is circulated as indicated by an arrow, that is,
The circuit constitutes the same cleaning mechanism as before.

Next, the valves c, d and f (g and h are irrelevant in this case) are closed, and the others are opened to dry the slanted pipe portion shown in FIG. In the cooling spot, hot air containing a solvent is cooled to form a solvent solution and sent to the water separator 9, and the solvent R separated from the water W is released from the solvent tank 92 (or The solvent tank 2 is returned to the container (open appropriately). In this way, the dry cleaning machine M of this embodiment selects and operates the cleaning mechanism and the drying mechanism alternately, and while the cleaning of the clothes C is repeated, the cartridge filters 33, 33, 33 in the filtering device 3 gradually.
At the appropriate time when the filtering function of ...... has a limit and cleaning may be hindered, the cleaning of the cartridge filters 33, 33 ,. carry out.

Cartridge filters 33, 33, ...
In the dry cleaning machine M shown as an example, the purifying mechanism of FIG. 1 causes the hot air generated in the heating spot 7 to circulate according to the arrow of the circuit portion including the dot seeding display and the wavy line display in FIG. By closing e and g and opening the others, the drying mechanism is connected to the filtering device 3 on the cleaning mechanism side through the connection circuit A, the solvent outlet side 32 of the filtering device 3 to the hot air inlet, and Solvent inlet side 31
Is changed to a hot air outlet, and hot air can be passed through the cartridge filters 33, 33, ... As a flow that is completely opposite to the flow of the solvent R when the cleaning mechanism is operated. , ... will be purified.

The flow of hot air in the filter device 3 is shown in the enlarged cross-sectional view of the main part of FIG. That is, the three cartridge filters 33, 33, which have deteriorated or lost the filtering function,
33 are connected through joint packings 35, 35, ..., By which the core pipes 34, 34 ,.
, Which are connected in series from the hot air intake (solvent outlet side 32) to the end and the hot air outlet (solvent inlet side 31) are hermetically sealed and housed in the filtering device 3. As described above, the hot air is In the process of being sent into the filtering device 3 through the core pipe 34 on the solvent outlet side 32 that originally changed to the hot air intake port and passing from the center of the cartridge filters 33, 33, 33 toward the outer periphery, various kinds of stabs were stuck in the washing process. Impurities are released and flow down into the filtration device 3, and are guided to the distillation tank 8 for recovery, while the solvent evaporated by the hot air is guided to the drying mechanism side through the connection circuit B and liquefied at the cooling spot 6. Becomes a solvent solution, reaches the water separator 9, and is reused as the solvent R. In addition,
The number of the filter devices 3 incorporated in the dry cleaning machine of the present invention and the number of the cartridge filters 33 loaded in the filter devices 3 are both increased or decreased as appropriate depending on the processing capacity of the dry cleaning machine, design convenience, and the like. It goes without saying that you can do it.

[0025]

In the cleaning machine of the present invention having the above-described structure, the circuits constituting the cleaning mechanism and the drying mechanism for realizing the original functions are used as they are, and the essential points thereof are selectively connected and used. By implementing such a structure, a purifying mechanism can be realized, and the cartridge filters 33, 33, ... Enclosed in the filtering device 3 can be purified without being taken out of the filtering device 3 at all. Yes, compared with the case of using a cleaning device prepared separately from the conventional cleaning machine, it not only makes it possible to greatly improve the work efficiency, but also it is harmful when taking out the cartridge filters 33, 33, ... It is excellent because it can completely eliminate the danger of substance leakage.

The dry cleaning machine M of the present invention is a cleaning mechanism and a drying mechanism originally provided in the dry cleaning machine, and if the cartridge filter 33 is adopted as a filtering device in the cleaning mechanism, Since these mechanisms can be utilized as they are, not only can they be used as a newly-produced dry cleaning machine M, but the cartridge filters 33, 33, ... It can be utilized by improving and repairing it so that a cleaning mechanism that can be selected and used can be realized. Therefore, legal regulations can be met by investing a small amount of money into the dry cleaning machine M currently in use. You can clear it, and its economic effect will be immeasurable.

Further, as for the selective switching, for example, as shown in the embodiment, the connection circuits A and B and the valves a to i necessary for selecting and using the circuits A and B are used. Since it has an extremely simple configuration that can be realized simply by combining and adopting a switching device such as, etc., there is no technical difficulty in improving and repairing the cartridge filter until now, and therefore, it is possible to shorten the time. The cartridge filter of the present invention can be surely remodeled inside, and the loss to the business can be reduced accordingly, and it can be adopted in many cleaning shops.

As described above, according to the cleaning machine of the present invention, the handling of the harmful designated solvent, which is indispensable for the cleaning industry, is extremely safe as compared with the conventional ones. In addition to being able to recover and reuse expensive harmful designated solvent, it is possible to extend the life of the cartridge filter itself, and to make great use of the conventional dry cleaning machine M. It is a very advantageous device for a cleaning company that is located in a region away from the country and is inconvenient to communicate with a specialized collection company, and is expected to be highly evaluated by those people. To be done.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a circuit in a state in which a purifying mechanism of the present invention is configured.

FIG. 2 is an enlarged sectional view of an essential part showing only a filtering device in the purification mechanism.

FIG. 3 is a circuit diagram showing a circuit in a state in which the cleaning mechanism of the present invention is configured.

FIG. 4 is a circuit diagram showing a circuit in a state in which the drying mechanism of the present invention is configured.

[Description of symbols] 1 washing tub 11 same button trap 2 solvent tank 21 same pump 3 filtration device 31 same solvent inlet side 32 same solvent outlet side 33 same cartridge filter 34 same core pipe 35 same packing material 36 same sealed door 37 same pressure tank 4 Dust Filter 5 Forced Fan 6 Cooling Spot 7 Heating Spot 8 Waste Liquid Tank 9 Moisture Separator 91 Water Recovery Tank 92 Solvent Recovery Tank A Connection Circuit B Connection Circuit C Laundry M Dry Cleaning Machine R Solvent W Water a to i Change apparatus

[Procedure amendment]

[Submission date] May 26, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Document name] Clarification

Title: Dry cleaning machine with cartridge filter purification mechanism

[Claims]

Detailed Description of the Invention

[0001]

An object of the present invention is to use a cartridge type filter incorporated in a dry cleaning machine continuously for a predetermined time, and at the stage when the filter function starts to be impaired, the filter is not replaced and incorporated into the dry cleaning machine. The present invention aims to provide a dry cleaning machine with a cleaning mechanism for a cartridge filter having a novel structure that enables the cleaning of the harmful solvent remaining in the filter and the cleaning of the filter itself while the filter is being stopped. Is.

[0002]

2. Description of the Related Art As a result of the development of various substances that enhance the cleaning effect, in the current cleaning equipment, non-combustible synthetic materials such as barchlorol ethylene, trichloroethane, etc. are used together with petroleum-based solvents having a relatively high flash point as organic solvents. A large number of products are using solvent or fluorene-based solvent, bulkylene. In dry cleaning using these solvents, unlike water used in washing with water, the solvent itself is expensive. Therefore, the solvent that has been used once and soiled is filtered every time it is installed in the equipment (cartridge). A filter type is the mainstream), and after insoluble dust and soluble dirt are removed and cleaned, the process of recirculating to the washer again is repeatedly used. Finally, if the purifying function of the cartridge filter reaches its limit and the soluble stains in the solvent remain above the limit and cannot be cleaned, replace it with another new cartridge. There must be.

The limit of repeated use of the solvent is usually 7 to 8 when the washing amount per device is about 30 kg.
It is about 00 times, and if it is more than that, the filter for removing the insoluble dust may be clogged and the cleaning effect may be hindered. Therefore, it is necessary to replace the filter. This filter has a cylindrical shape in which adsorbent such as activated carbon is loaded in the space around the core pipe, and the outer peripheral surface is covered with a water-permeable sheet such as Japanese paper or non-woven fabric.Most of the recent filters are cleaning machines. It is formed as a cartridge type that can be freely taken in and out of the filtration device.

The filter that has clogged up and cannot perform its filtering function has accumulated unacceptably insoluble dust that has fallen off from the laundry and at the same time impregnated with and remains with the solvent. The weight of the filter used (washing amount 30 kg / dual use) is about 15 kg, whereas the weight of the filter that cannot perform the filtering function reaches about 45 kg, and the weight of the filter in this state is It means that it is filled with 30 kg of insoluble dust and solvent.

Looking at the breakdown of the residue amounting to 30 kg in the above example, it has been found that about 5 kg is insoluble dust, and the remaining 25 kg is a solvent. The filter that lost the filtration function while leaving the solvent of is not only uneconomical to throw away the solvent, but since the solvent Perchlor ethylene and Barkrene are designated as harmful substances, We are faced with the troubling problem of being obliged to carry and incinerate by a professional company, and prohibiting arbitrary disposal.

[0006] In fact, in some regions, there are no recovery companies that process these special products, and in the case of Yamagata Prefecture, for example, there is no choice but to rely on a specialized specialist in Niigata Prefecture. Moreover, the recovery cost is 18
Since it costs 0 yen / kg (45 × 180 = 8100 yen / piece in the case of the previous example), it is not only troublesome to handle at a large-scale cleaning shop with a large number of uses, but also in terms of cost. The burden is not negligible.

Therefore, in order to deal with such a situation,
The applicant of the present application has already completed a purifying device for a cartridge filter, which has lost the filtering function as the invention of Japanese Patent Application No. 2-256458, and almost completely recovers the solvent remaining in the filter to eliminate the harmful effects of harmful substances. In addition, as a result, the weight of the entire filter was reduced as much as possible, and the cost that had to be paid to a specialized collection company was greatly reduced.

The present invention has been completed based on the above-mentioned technical idea of the invention while continuing the development and research for further improvement. The already proposed one is the filtering function. The purpose was to remove the cartridge filter without removing it from the dry cleaning machine once, and to purify it, but here, in the state that the cartridge filter was stopped as it was in the filtration device built into the dry cleaning machine. It is made possible to purify, further simplifies the purifying work of the cartridge filter, and economically by utilizing a part of the mechanism of the already installed dry cleaning machine. A cartridge filter purifier with the following configuration to reduce the burden as much as possible. It is a per dry cleaning machine.

[0009]

As will be understood from the typical embodiment shown in the drawings, the dry cleaning machine with a cartridge filter purifying mechanism of the present invention basically has the following structure. That is, the washing mechanism in which the filtering device 3 by the cartridge filter 33 is arranged between the solvent tank 2 and the washing tub 1 and the drying mechanism for circulating clean hot air in the washing tub 1 are incorporated in independent circuits. In the dry cleaning machine M, the filter device solvent outlet side 32 of the cleaning mechanism is directly connected to the hot air delivery port side of the drying mechanism to switch to the hot air intake port, and the filter device solvent inlet side 31 is connected to the solvent tank 2 To the hot air outlet that is directly connected to the inlet side of the drying mechanism, and the filtration device 3
The core pipes 3 of the cartridge filters 33, 33, ... Arranged in series in which the core pipes 34 communicate with each other.
By sending hot air from the drying mechanism through 4,
Alternatively, the filtering device 3 is a dry cleaning machine with a cartridge filter cleaning mechanism that forms a cleaning mechanism that does not pass through the washing tub 1 and the solvent tank 2.

The cleaning mechanism adopted in the most general dry cleaning machine in recent years is the solvent R in the solvent tank 2.
Is pumped up and passed through the filtering device 3 to filter dust and dirt in the solvent R and send it to the washing tub 1. After the dirt of the laundry is removed by the solvent R, it is collected in the button trap 11 to collect solid foreign matters. Of the solvent R after being precipitated in the solvent tank 2 again.
3, which corresponds to the piping portion indicated by stripes in FIG. 3, in which the circuit in which the solvent R is forcedly circulated according to the arrow is not connected to the circuit for the drying mechanism described later, It is generally configured as an independent circuit, and their corresponding cleaning mechanisms can all be the subject of this invention.

Recently, the filtration device 3 in this mechanism is provided with a disposable cut ridge filter 33.
The plurality of pressure tanks 37 are connected and arranged in series so as to communicate with each other by the respective core pipes 34. The solvent R has a mechanism in which impurities are removed in the process of being sent from the outer periphery of the filters 33 to the core pipes 34. ing. The number of pressure tanks 37 to be adopted and the number of cut ridge filters 33 to be stored in the pressure tank 37 are appropriately determined at the design stage according to the cleaning ability of the dry cleaning machine M. Needless to say, it is not constant.

The drying mechanism is usually a heating spot 7 for producing a hot air for drying clothes, such as a dust filter 4, a fan 5 for forced circulation, a cooling spot 6 for solvent recovery, and a solvent R to evaporate the solvent R from the washing tub 1. Of the solvent R released from the laundry C according to the arrow, and a portion corresponding to the hatched piping portion shown in FIG. It is the most common that the hot air produced by heating the clean airflow after separating and recovering the solvent R from is continuously circulated and is independently configured as an individual device, That is, the structure, function, number of combinations, etc. of the dust filter 4, the fan 5, the cooling spot 6, the heating spot 7, and the devices associated therewith can be freely designed as appropriate. All conventional drying mechanisms including those designed changes are encompassed drying mechanism of the present invention.

In the existing dry cleaning machine M having the above-mentioned cleaning mechanism and drying mechanism incorporated therein,
The purifying mechanism of the cartridge filter 33 switches the filter device solvent outlet side 32 of the cleaning mechanism to the hot air intake port by directly connecting it to the hot air delivery port side of the drying mechanism, and also connects the filter device solvent inlet side 31 to the solvent tank. The core pipes 34, 34, ... of the cartridge filters 33, 33, ... arranged in series so that the core pipes 34 communicate with each other in the filtering device 3 by switching from the hot air outlet that is cut off from 2 and is directly connected to the inlet side of the drying mechanism. It is formed by making it possible to selectively realize a circuit in which hot air from the drying mechanism is sent through.

In order to realize the cleaning mechanism by switching, the existing dry cleaning machine M is used.
In the case of the cleaning mechanism and the drying mechanism, each of which is supposed to be formed as an independent circuit, between the predetermined locations, that is, the first location, the middle of the circuit from the filtering device 3 to the washing tub 1 in the cleaning mechanism ( The connection circuit A is provided between the filter device solvent outlet side 32) and the middle of the circuit from the heating spot 7 outlet side to the washing tub 1 in the drying mechanism (hot air outlet side).
The second part is in the middle of the circuit from the solvent tank 2 to the filter device 3 in the cleaning mechanism (filter device solvent inlet side 31) and in the drying mechanism from the solvent tank 2 to the dryer mechanism inlet side. The connection circuit B must be provided between the two.

Moreover, the respective connection circuits A and B are
A valve and other known switching devices are combined and connected to the circuit that constitutes the cleaning mechanism and the circuit that constitutes the drying mechanism. That is, in the case of the connection circuit A, one end thereof is provided between the pair of switching devices a and b arranged in parallel on the hot air feeding side of the drying mechanism, and the other end thereof is connected to the filter device solvent outlet of the cleaning mechanism. The connection circuit B is connected between a pair of switching devices c and d arranged in parallel on the side 32, and one end of the connection circuit B is provided in the middle of the circuit from the solvent tank 2 to the inlet side of the drying mechanism. The other end of the switching device e on the drying mechanism inlet side is connected to the switching device f provided on the filtering device solvent inlet side 31 of the cleaning mechanism (the switching device g is for cleaning the position facing the switching device f). The filter device solvent inlet side 31 is provided between the switching devices f and g provided on the circuit side of the mechanism.

The purifying mechanism thus formed collects impurities discharged in the purifying process of the cartridge filters 33, 33 ,. 8 and a water separator 9 (a water recovery tank 91 and a solvent recovery tank 9 installed below the cooling spot 6 to separate and recover only the solvent R from the solvent solution recovered by the cooling spot 6 from the water.
And 2) are included. The solvent R recovered in the solvent recovery tank 92 of the water separator 9
In addition to adopting a configuration in which the solvent recovery tank 92 is piped and connected to the solvent tank 2 for direct reuse, the solvent R may be indirectly transferred from the solvent recovery tank 92 to the solvent tank 2. , May be appropriately selected.

When the cleaning mechanism is selected and configured as described above, the filtering device 3 realizes a circuit that does not pass through the washing tub 1 and the solvent tank 2. The dry cleaning machine M of the present invention is an existing dry cleaning machine in addition to the one which is built as a new dry cleaning machine M by incorporating all of the above-described configurations in advance, and is a cartridge filter 33, 33, ...
A dry cleaning machine M having a cleaning mechanism having a filtering device 3 that employs ... And a drying mechanism separate from the cleaning mechanism,
It also includes those which are formed by appropriately improving and connecting. In addition, the drying mechanism, that is, the washing tub 1 to the dust filter 4, the fan 5 for forced circulation, the cooling spot 6 for solvent recovery, and the heating spot 7 for evaporating the solvent R to generate hot air for drying clothes are reached. The mechanism constituted by the circuit is formed as a separate unit from the so-called conventional drying mechanism for drying the laundry, which is connected to the washing tub 1.
The dry cleaning machine M having a structure in which a drying mechanism is arranged in parallel is also included in the dry cleaning machine M of the present invention.

[0018]

Embodiment 1 Hereinafter, the dry cleaning machine M of the present invention will be explained more specifically with reference to the embodiments representative of the present invention shown in the drawings. As can be understood from the circuit diagrams shown in FIGS. 1, 2 and 3, the dry cleaning machine with a cartridge filter cleaning mechanism of the present invention has a solvent tank 2 having a pump 21 around a washing tub 1. , Two filtering devices 3 in which three cartridge filters 33 are connected in series are arranged in parallel, a dust filter 4 as a drying mechanism, a fan 5 for forced circulation, a cooling spot 6 for solvent recovery, and a solvent R are evaporated, A heating spot 7 for producing hot air for drying clothes, and a filtering device 3
A waste liquid tank for storing the waste liquid discharged when purifying the cartridge filters 33, 33, ... Inside, and a water separator for separating and collecting the solvent R contained in the hot air when operating the purifying mechanism. 9 are arranged and are connected and piped as follows.

First, the solvent tank 2 is disposed below the washing tub 1 via the button trap 11, and operates a washing mechanism to store a predetermined amount of the solvent R for washing clothes in the washing tub 1. .. The filtering devices 3 and 3 have the solvent inlet side 31,
31 is connected between the valve g on the pump 21 side of the solvent tank 2 and the valve f on the connection circuit B side, and the solvent outlet side 3
Both of the valves 2 and 32 are connected to the washing tub 1 with a pair of valves c and d disposed in the middle. The dust filter 4, the fan 5 for forced circulation, the cooling spot 6 for solvent recovery, and the heating spot 7 for producing hot air are connected and connected in series in this order, and the dust filter 4, which is the hot air intake side, is valved midway. e
Is arranged and connected to the washing tub 1, and piping is performed, and the heating spot 7 on the hot air sending side is also connected to the washing tub 1 by arranging valves a and b in the middle, and piping is performed. A circuit for returning to the washing tub 1 again via the device is configured.

The connecting circuit A has a valve a at one end thereof.
And b, and the other is connected and piped between valves c and d. One end of the connection circuit B is connected to the valve f arranged at the portion to which the filter device 3 is connected, and the other end is connected between the valve e and the dust filter 4 for piping. The waste liquid tank 8 is below the filtering device 3 and is connected and piped with a valve h arranged from the bottom thereof. The water separator 9 is configured to separate and collect the solvent R and the water W depending on the difference in specific gravity. The upper side of the water separator 9 is connected to a water tank 91, and the lower side thereof is connected to a solvent tank 92 by piping to connect the solvent tank 92. The valve R is connected to the solvent tank 2 by connecting the valve i to the piping, so that the solvent R recovered in the solvent tank 92 is directly returned to the solvent tank 2.

In order to wash clothes first by the dry cleaning machine M of this embodiment having the above-mentioned circuit, all the switching devices for the valves a, b, e, f and h are closed and other switching is performed. After the device is opened, the solvent R from the solvent tank 2 is pumped up by the pump 21, and the solvent inlet side 31 of the filtration device 3 is passed through the opened valve g to the outer periphery of the cartridge filters 33, 33, .... The impurities are removed in the process of being sent to the core pipe 34 at the center thereof and taken out from the solvent outlet side 32 of the filtration device,
Since the valves a and b are closed, the solvent R cannot pass through the connecting circuit A, and is sent to the washing tub 1 through the valves c and d that are open, so that the clothes C in the washing tub 1 are discharged. After the dirt is removed, the button trap 11 returns to the solvent tank 2 as the solvent R from which the solid foreign matter is separated, and is pumped up again to wash the clothes C while repeating the same cycle as described above. The circuit constitutes a so-called cleaning mechanism which is the same as the conventional one, in which the striped pipe portion is circulated as shown by the arrow.

Next, by closing the switching devices for the valves c, d, f (g and h are irrelevant in this case) and opening the other switching devices, the hatched pipe portion shown in FIG. 4 is indicated by an arrow. In accordance with the above, a drying mechanism in which hot air circulates is configured, and at the cooling spot, the hot air containing the solvent is cooled to form a solvent solution and sent to the water separator 9, and the solvent R separated from the water W is stored in the solvent tank 92. The solvent tank 2 released from (or opened as appropriate) is returned. In this way, the dry cleaning machine M of this embodiment alternately selects and operates the cleaning mechanism and the drying mechanism, and while the cleaning of the clothes C is repeated, the cartridge filters 33, 33, ... The cleaning of the cartridge filters 33, 33, ... Is carried out in the filtering device 3 at an appropriate time when there is a possibility that the filtering function of the cartridge will be limited and the cleaning may be hindered. ..

Cartridge filters 33, 33, ...
In the dry cleaning machine M shown as an example, the purifying mechanism of FIG. 1 causes the hot air generated in the heating spot 7 to circulate according to the arrow of the circuit portion including the dot seeding display and the wavy line display in FIG. Close the switching device for e and g,
By making the other switching device an open valve, the drying mechanism is connected to the filter device 3 on the cleaning mechanism side through the connecting circuits A and B, and the solvent outlet side 32 of the filter device 3 is connected to the hot air intake port and the solvent. The inlet side 31 is changed to a hot air delivery port, and hot air is supplied as a flow that is completely opposite to the flow of the solvent R when the cleaning mechanism is operated.
.. can be passed through the inside, and the cleaning of the cartridge filters 33, 33 ,.

The flow of hot air in the filter device 3 is shown in the enlarged cross-sectional view of the main part of FIG. That is, the three cartridge filters 33, 33, which have deteriorated or lost the filtering function,
33 are connected through joint packings 35, 35, ..., By which the core pipes 34, 34 ,.
, Which are connected in series from the hot air intake (solvent outlet side 32) to the end and the hot air outlet (solvent inlet side 31) are hermetically sealed and housed in the filtering device 3. As described above, the hot air is In the process of being sent into the filtering device 3 through the core pipe 34 on the solvent outlet side 32 that originally changed to the hot air intake port and passing from the center of the cartridge filters 33, 33, 33 toward the outer periphery, various kinds of stabs were stuck in the washing process. Impurities are released and flow down into the filtering device 3, are guided to the waste liquid tank 8 and are collected, while the solvent evaporated by the hot air is guided to the drying mechanism side through the connection circuit B and liquefied at the cooling spot 6. Becomes a solvent solution, reaches the water separator 9, and is reused as the solvent R.

[0025]

In the cleaning machine of the present invention having the above-described structure, the circuits constituting the cleaning mechanism and the drying mechanism for realizing the original functions are used as they are, and the essential points thereof are selectively connected and used. By implementing such a structure, a purifying mechanism can be realized, and the cartridge filters 33, 33, ... Enclosed in the filtering device 3 can be purified without being taken out of the filtering device 3 at all. Yes, compared with the case of using a cleaning device prepared separately from the conventional cleaning machine, it not only makes it possible to greatly improve the work efficiency, but also it is harmful when taking out the cartridge filters 33, 33, ... It is excellent because it can completely eliminate the danger of substance leakage.

The dry cleaning machine M of the present invention is a cleaning mechanism and a drying mechanism originally provided in the dry cleaning machine, and if the cartridge filter 33 is adopted as a filtering device in the cleaning mechanism, if they are used, Since it is possible to make use of the mechanism as it is, it is not only used as a newly manufactured dry cleaning machine M, but also the cartridge filters 33, 33, ... Until now are appropriately selected like those of the present invention. Since it can be utilized by improving and repairing it so that a usable purifying mechanism can be realized, it is possible to clear the legal regulation by only investing a small amount of money into the dry cleaning machine M currently in use. Yes, the economic benefits are immeasurable.

Further, as for the selective switching, for example, as shown in the embodiment, the connection circuits A and B and the valves a to i necessary for selecting and using the circuits A and B are used. Since it has an extremely simple configuration that can be realized simply by combining and adopting a switching device such as, etc., there is no technical difficulty in improving and repairing the cartridge filter until now, and therefore, it is possible to shorten the time. The cartridge filter of the present invention can be surely remodeled inside, and the loss to the business can be reduced accordingly, and it can be adopted in many cleaning shops.

As described above, according to the cleaning machine of the present invention, the handling of the harmful designated solvent, which is indispensable for the cleaning industry, is extremely safe as compared with the conventional ones. In addition to being able to recover and reuse expensive harmful designated solvent, it is possible to extend the life of the cartridge filter itself, and to make great use of the conventional dry cleaning machine M. It is a very advantageous device for a cleaning company that is located in a region away from the country and is inconvenient to communicate with a specialized collection company, and is expected to be highly evaluated by those people. To be done.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a circuit in a state in which a purifying mechanism of the present invention is configured.

FIG. 2 is an enlarged sectional view of an essential part showing only a filtering device in the purification mechanism.

FIG. 3 is a circuit diagram showing a circuit in a state in which the cleaning mechanism of the present invention is configured.

FIG. 4 is a circuit diagram showing a circuit in a state in which the drying mechanism of the present invention is configured.

[Explanation of symbols] 1 washing tub 11 same button trap 2 solvent tank 21 same pump 3 filtration device 31 same solvent inlet side 32 same solvent outlet side 33 same cartridge filter 34 same core pipe 35 same packing material 36 same closed door 37 same pressure tank 4 Dust Filter 5 Forced Fan 6 Cooling Spot 7 Heating Spot 8 Waste Liquid Tank 9 Moisture Separator 91 Water Recovery Tank 92 Solvent Recovery Tank A Connection Circuit B Connection Circuit C Laundry M Dry Cleaning Machine R Solvent W Water a to i Switching Equipment ───────────────────────────────────────────────── ────

[Procedure amendment]

[Submission date] May 29, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

[0018]

Embodiment 1 Hereinafter, the dry cleaning machine M of the present invention will be explained more specifically with reference to the embodiments representative of the present invention shown in the drawings. As can be understood from the circuit diagrams shown in FIGS. 1, 3 and 4 , the dry cleaning machine with a cartridge filter purifying mechanism of the present invention has a solvent tank 2 having a pump 21 around a washing tub 1. , Two cartridge filters 33 connected in series, two filtration devices 3 arranged in parallel, a dust filter 4, which is a drying mechanism, a forced circulation fan 5, a cooling spot 6 for solvent recovery, and a solvent R. Heating spot 7 that evaporates and creates hot air for drying clothes, and
Cartridge filters 33, 33, ...
And a water separator 9 for separating and collecting the solvent R contained in the hot air when the cleaning mechanism is operated. , Are connected and piped as follows.

Claims (2)

[Claims] 1. A dry mechanism in which a cleaning mechanism in which a filtering device using a cartridge filter is arranged between a solvent tank and a washing tub and a drying mechanism for circulating clean hot air in the washing tub are respectively incorporated in independent circuits. In the cleaning machine, the solvent outlet side of the filter of the cleaning mechanism is directly connected to the hot air outlet side of the drying mechanism to switch to the hot air inlet, and the solvent inlet side of the filter is cut off from the solvent tank to dry the mechanism. By switching to the hot air outlet directly connected to the inlet side and feeding hot air from the drying mechanism through the core pipe of the cartridge filter arranged in series in which the core pipe communicates with the inside of the filtering device, the filtering device is selectively washed by the washing tub. And a dry cleaning machine with a cartridge filter cleaning mechanism that forms a cleaning mechanism that does not go through a solvent tank. 2. A dry mechanism in which a cleaning mechanism in which a filtering device using a cartridge filter is arranged between a solvent tank and a washing tub and a drying mechanism for circulating clean hot air in the washing tub are incorporated in independent circuits, respectively. In the cleaning machine, the solvent outlet side of the filter of the cleaning mechanism is directly connected to the hot air outlet side of the dryer installed separately from the drying mechanism of the dry cleaning machine to switch to the hot air inlet, and the solvent of the filter apparatus is also removed. Cut off the inlet side from the solvent tank and switch to the hot air outlet that is directly connected to the inlet side of the drying device.
By passing hot air from a drying device provided separately from the drying mechanism of the dry cleaning machine through the core pipe of the cartridge filters arranged in series in which the core pipes communicate with each other in the filtering device, the filtering device can be selectively operated. , A dry cleaning machine with a cartridge filter cleaning mechanism that forms a cleaning mechanism that does not go through the washing tub and solvent tank.