JP6795746B2 - Counter with built-in purified water production equipment and its maintenance method - Google Patents

Description

The present invention relates to a counter with a built-in purified water production apparatus and a maintenance method thereof.

For dialysis treatment, a dialysis system equipped with a purified water production device for producing purified water and a dialysis device for preparing a dialysate from purified water and a dialysis base material and performing dialysis using the dialysate is used ( For example, see Patent Document 1).
As a dialysis system, a system in which a small personal purified water production device and a small personal dialysis device, which are transported to a hospital room or a treatment room at the time of use, are connected by a purified water supply line is known.

Japanese Patent No. 5425527

When not in use, the personal purified water production equipment is transported to a storage-only room where it is stored. Therefore, it takes time and effort to reciprocate the personal purified water production device between the storage room and the hospital room or the treatment room.

Further, since the personal purified water production apparatus is stored in a state where the purified water is retained in the personal purified water production apparatus and the purified water supply line, the retained water is easily contaminated by bacteria and endotoxin. Therefore, when storing the personal purified water production equipment, it is necessary to replace the purified water in the personal purified water production equipment and the purified water supply line with a formalin solution. However, when using a personal purified water production device, it is necessary to drain the formalin solution from the personal purified water production device and the purified water supply line, and to perform rinsing to completely remove the residual formalin. .. As described above, it takes time and effort to supplement the personal purified water production apparatus and the purified water supply line so that the personal purified water production apparatus and the purified water supply line are not contaminated by bacteria and endotoxin.

As a method of suppressing contamination of personal purified water production equipment and purified water supply line during storage without using formalin solution, the purified water supply line and the external drainage line are periodically connected manually for purification. Purified water is produced by a water production device, the purified water that has passed through the purified water supply line is discharged to the drainage line, and then the purified water supply line and the external drainage line are manually removed for personal use. A method of preventing long-term retention of purified water in the manufacturing equipment and the purified water supply line can be considered. However, in order to sufficiently suppress the contamination of the stagnant water by bacteria and endotoxin, it is necessary to repeat the above work frequently, which is very time-consuming. In addition, since the work is performed manually, bacteria may be mixed into the personal purified water production equipment and the purified water supply line from the outside, and the personal purified water production equipment and the purified water supply line may be contaminated.

According to the present invention, it is possible to suppress the contamination of the purified water production apparatus and the purified water supply line, the labor for suppressing the contamination is not required, and the purified water production apparatus is transported for the work for suppressing the contamination. It provides a counter with a built-in purified water production device that does not need to be used and a maintenance method thereof.

The present invention has the following aspects.
<1> A storage counter having a storage space inside; a purified water production device stored in the storage space of the storage counter; a first end is connected to a purified water outlet of the purified water production device, and a second With a purified water supply line whose end is arranged so that it can be connected to other lines outside the storage counter; with a drainage line that discharges wastewater to the outside; and detachable from the second end of the purified water supply line. A counter with a built-in purified water production apparatus, which is connected to a bypass line and directly feeds purified water that has passed through the purified water supply line to the drainage line.
<2> The counter with a built-in purified water production apparatus according to <1>, wherein a sample port is provided in the middle of the bypass line from which a part of the purified water flowing through the bypass line can be taken out.
<3> The counter with a built-in purified water production apparatus according to <1> or <2>, further comprising a control means for controlling the start and stop of supply of the purified water from the purified water production apparatus to the drainage line.
<4> Purification of any one of <1> to <3>, further comprising either or both of a heating means for heating the purified water and a chemical solution stock solution adding means for adding the chemical solution stock solution to the purified water. Counter with built-in water production equipment.
<5> The counter with a built-in purified water production apparatus according to <4>, further comprising a control means for controlling one or both of the driving of the heating means and the driving of the chemical stock solution addition means.
<6> The maintenance method for the counter built in the purified water production apparatus according to any one of <1> to <5>; periodically, the purified water production apparatus produces purified water, and the purified water is used as the purified water. A method for maintaining a counter with a built-in purified water production apparatus, which supplies water to the drainage line via a supply line and the bypass line.

The counter with a built-in purified water production device of the present invention can suppress the contamination of the purified water production device and the purified water supply line, and the work for suppressing the contamination is not troublesome, and the work for suppressing the contamination is performed. There is no need to transport purified water production equipment.
According to the maintenance method of the counter built in the purified water production apparatus of the present invention, the contamination of the purified water production apparatus and the purified water supply line can be suppressed, the work for suppressing the contamination is not required, and the contamination is suppressed. There is no need to transport purified water production equipment for this work.

It is a schematic block diagram which shows an example of the counter built in the purified water production apparatus of this invention. FIG. 5 is a schematic configuration diagram showing a state in which a personal dialysis machine is connected to a counter built in the purified water production device of FIG. It is a schematic block diagram which shows another example of the counter built in the purified water production apparatus of this invention. FIG. 3 is a schematic configuration diagram showing a state in which a personal dialysis machine is connected to a counter built in the purified water production device of FIG.

<< First Embodiment >>
<Counter with built-in purified water production equipment>
FIG. 1 is a schematic configuration diagram showing a first embodiment of the counter built in the purified water production apparatus of the present invention.
The counter 1 with a built-in purified water production device includes a storage counter 2 having a storage space inside; a purified water production device 10 for producing purified water stored in the storage space of the storage counter 2; and a water supply at the first end. With a water supply line 100 whose second end is connected to the raw water inlet 20 of the purified water production apparatus 10; the first end is connected to the purified water outlet 22 of the purified water production apparatus 10 and the like. A purified water supply line 102 whose end 2 is arranged in front of the storage counter 2 so as to be connectable to other external lines; drainage generated by the counter 1 with a built-in purified water production device and a personal dialysis device described later. A first drainage line 104 (drainage line) for draining to the outside; a first end connected to a drainage outlet 26 of the purified water production apparatus 10 and a second end joining the main drainage line 104. With the drainage introduction line 106 (drainage line); the first end is arranged in front of the storage counter 2 so as to be connectable to other external lines, and the second end joins the main drainage line 104. With the drainage introduction line 108 (drainage line); the first end is arranged in front of the storage counter 2 so as to be connectable to other external lines, and the second end is the first of the purified water production apparatus 10. A first purified water return line 110 (drainage line) that returns purified water from the outside of the storage counter 2 to the purified water production apparatus 10 connected to the purified water inlet 24; the first end is a purified water supply line. Detachably connected to the second end of 102, the second end is detachably connected to the first end of the first purified water return line 110, and the purified water has passed through the purified water supply line 102. It is provided with a bypass line 114 that directly supplies water to the purified water return line 110 without passing through a personal dialysis apparatus described later.

The counter 1 with a built-in purified water production apparatus further includes a check valve 126 provided in the middle of the first purified water return line 110.
The counter 1 with a built-in purified water production device is further connected to the purified water production device 10 electrically to control the purified water production device 10; a control device 80 (control means); an input device and a display device of the control device 80. It is provided with a display touch panel 82 attached to the front of the storage counter 2 and electrically connected to the control device 80.

The counter 1 with a built-in purified water production apparatus further includes an ultrafiltration membrane filter 90 provided in the middle of the purified water supply line 102. The ultrafiltration membrane filter 90 is provided for removing bacteria and endotoxin in the purified water supply line 102.

(Storage counter)
The storage counter 2 is a facility provided in a hospital room, a treatment room, etc., and is used for storing medical equipment, etc., and as a water supply in the hospital room, the treatment room, etc.
The storage counter 2 has a storage space inside for storing the purified water production apparatus 10.
The storage counter 2 is provided with piping for water circulation.

(Purified water production equipment)
The purified water production apparatus 10 includes an activated carbon filter 12 containing activated carbon that removes residual chlorine in raw water supplied from a water supply or the like via a water supply line 100; and filters raw water filtered by activated carbon with a reverse osmosis membrane. It is provided with a reverse osmosis membrane module 14 for obtaining purified water.

The purified water production apparatus 10 further includes a raw water supply line 30 in which the first end is connected to the water supply line 100 at the raw water inlet 20 and the second end is connected to the activated charcoal filter 12; the first end is With a raw water transfer line 32 connected to the activated carbon filter 12 and the second end connected to the reverse osmosis membrane module 14; the first end connected to the reverse osmosis membrane module 14 and the second end connected to purified water. With the purified water transfer line 34 connected to the purified water supply line 102 at the outlet 22; the first end connects to the first purified water return line 110 at the first purified water inlet 24 and the second end A drainage line 36 (drainage line) for a device connected to the first drainage introduction line 106 at the drainage outlet 26 for returning to the purified water production apparatus 10 or discharging the wastewater generated in the purified water production apparatus 10 to the outside of the apparatus. And; a concentrated water discharge line 38 with a first end connected to the reverse osmosis membrane module 14 and a second end connected to the equipment drain line 36; and a first end of the concentrated water discharge line 38. It is provided with a concentrated water return line 40 that branches from the middle and joins the raw water transfer line 32 at the second end.

The purified water production apparatus 10 is further provided with a solenoid valve 50 provided in the middle of the raw water transfer line 32 on the upstream side of the point where the concentrated water return line 40 joins, and opens and closes the raw water transfer line 32; the concentrated water return line. A check valve 52 provided in the middle of the 40 is provided.
The purified water production apparatus 10 further includes a pressurizing pump 60 provided in the middle of the raw water transfer line 32 on the downstream side of the point where the concentrated water return line 40 joins.

The purified water production apparatus 10 further includes a water quality sensor 70 and a flow rate sensor 72 provided in the middle of the purified water transfer line 34.
A control device 80 for controlling these is electrically connected to the solenoid valve 50, the pressurizing pump 60, the water quality sensor 70, the flow rate sensor 72, and the like.

As the reverse osmosis membrane module 14, a reverse osmosis membrane module usually used in a purified water production apparatus may be used, and is not particularly limited. Examples of the reverse osmosis membrane module include the spiral type reverse osmosis membrane module described in Japanese Patent No. 4990710. The spiral type reverse osmosis membrane module is a cylindrical reverse osmosis membrane element in which a reverse osmosis membrane is wound around a water collecting pipe, which is housed in a cylindrical casing. The raw water introduced from the raw water inlet is reverse osmotic. It separates purified water that has permeated the membrane and concentrated water that does not permeate the reverse osmosis membrane. The reverse osmosis membrane (RO membrane) may be a reverse osmosis membrane usually used in purified water production equipment, and is not particularly limited. Examples of the material of the reverse osmosis membrane include polyamide, polysulfone, cellulose acetate, polyacrylonitrile and the like.

The high-pressure pump used in the pressurizing pump 60 may be any as long as it is usually used in the purified water production apparatus, and is not particularly limited. Examples of the high-pressure pump include a multi-stage centrifugal pump and a plunger pump.

(Purified water supply line)
The purified water supply line 102 is a line for supplying the purified water produced by the purified water production apparatus 10 to a personal dialysis apparatus described later, which is outside the storage counter 2. When it is not necessary to supply purified water to the personal dialysis machine, the first end of the bypass line 114 is detachably connected to the second end of the purified water supply line 102.
At the second end of the purified water supply line 102, a connector for detachably connecting a water pipe, a bypass line 114, etc. of a personal dialysis machine is provided.

(Drainage line)
The first purified water return line 110, the drainage line 36 for the device, the first drainage introduction line 106, and the main drainage line 104 are drainage lines for discharging the drainage generated at the counter 1 built in the purified water production device to the outside. Is.
The second drainage introduction line 108 and the main drainage line 104 are drainage lines for discharging the drainage generated by the personal dialysis machine described later to the outside.

The end of the drainage pipe of the personal dialysis machine is detachably connected to the first end of the second drainage introduction line 108. When it is not necessary to supply purified water to the personal dialysis machine, it is not necessary to connect the end of the drainage pipe of the personal dialysis machine to the first end of the second drainage introduction line 108. .. At the first end of the second drainage introduction line 108, a connector for detachably connecting a drainage pipe or the like of a personal dialysis machine is provided.

The main drainage line 104 is arranged inside or outside the ceiling, floor, wall, storage counter 2, etc. of the facility, and is at least the first end of the first drainage introduction line 106 and the second drainage introduction line 108. The first end is arranged on the storage counter 2.

The wastewater generated by the counter 1 with a built-in purified water production device and the personal dialysis machine is concentrated water discharged from the reverse osmosis membrane module 14; wastewater that is no longer needed after being used in the personal dialysis machine; purified water transfer. Examples thereof include accumulated water contaminated by the accumulation of purified water in the line 34, the purified water supply line 102, the bypass line 114, the first purified water return line 110, and the like.

(Purified water return line)
The first purified water return line 110 is a line for returning purified water from the outside of the storage counter 2 to the purified water production apparatus 10.
The purified water returned to the purified water production apparatus 10 through the first purified water return line 110 is discharged to the outside via the equipment drainage line 36, the first drainage introduction line 106, and the main drainage line 104. To.
A second end of the bypass line 114 is detachably connected to the first end of the first purified water return line 110. At the first end of the first purified water return line 110, a connector for detachably connecting the bypass line 114 and the like is provided.

(Bypass line)
The bypass line 114 does not allow the purified water that has passed through the purified water supply line 102 to pass through the personal dialysis machine when it is not necessary to supply the purified water to the personal dialysis machine, and the drainage line (first purified water return). This is a line for directly supplying water to the line 110, the drainage line 36 for equipment, the first drainage introduction line 106, and the main drainage line 104).
A second end of the purified water supply line 102 is detachably connected to the first end of the bypass line 114. The first end of the first purified water return line 110 is detachably connected to the second end of the bypass line 114. When supplying purified water to the personal dialysis machine, the first end of the bypass line 114 is removed from the second end of the purified water supply line 102.

The bypass line 114 is usually composed of a flexible tube so that it can be easily attached to and detached from the second end of the purified water supply line 102 and the first end of the first purified water return line 110. ing.
The second end of the purified water supply line 102 and the first end of the first purified water return line 110 are detachably connected to the first end and the second end of the bypass line 114. A connector is provided for this.
A sample port 132 capable of taking out a part of purified water flowing through the bypass line 114 is provided in the middle of the bypass line 114.
The bypass line 114 may be provided with a solenoid valve or the like for opening and closing the bypass line 114, if necessary.

(Control means)
The control device 80 is roughly configured with a processing unit (not shown), an interface unit (not shown), and a calendar timer (not shown).
Further, a display touch panel 82 is electrically connected to the control device 80 as an input device and a display device.

The control device 80 controls the start and stop of supply of purified water from the purified water production device 10 to the drainage line; the start and stop of supply of purified water to the personal dialysis machine, and these controls are required. It can be performed at any date and time set in the calendar timer accordingly.

The calendar timer has a clock unit that manages the date and time, and a storage unit that stores the operation schedule of the purified water production apparatus. The calendar timer is designed to be able to transmit an electric signal at a set date and time stored in the storage unit.

The interface unit electrically connects the solenoid valve 50, the pressurizing pump 60, the water quality sensor 70, the flow rate sensor 72, the display touch panel 82, etc., and the processing unit.

The processing unit controls opening and closing of the solenoid valve 50, driving of the pressurizing pump 60, and the like based on an electric signal from the calendar timer, an operation signal input to the processing unit, and the like.
Specifically, the processing unit performs the following control, for example.

The treatment unit produces purified water in the purified water production apparatus 10, and when the purified water is sent from the purified water production apparatus 10 to the drainage line, the bypass line 114 is connected to the second end of the purified water supply line 102. The electromagnetic valve in the purified water production apparatus 10 in a state where the first end portion of the bypass line 114 is connected and the second end portion of the bypass line 114 is connected to the first end portion of the first purified water return line 110. By opening 50 and driving the pressurizing pump 60, the raw water is supplied to the activated carbon filter 12 and the back-penetrating membrane module 14, and the purified water obtained by the back-penetrating membrane module 14 is purified water transfer line 34 and purified. Water supply to the first purified water return line 110 (drainage line) via the water supply line 102 and the bypass line 114 is started.

When the processing unit stops the production of purified water in the purified water production apparatus 10 and stops the supply of purified water from the purified water production apparatus 10 to the drainage line, the pressurizing pump 60 in the purified water production apparatus 10 The supply of raw water to the activated carbon filter 12 and the reverse osmosis membrane module 14 and the first purification via the purified water transfer line 34, the purified water supply line 102 and the bypass line 114 by stopping the electromagnetic valve 50. It stops the supply of purified water to the water return line 110 (drainage line).

The processing unit produces purified water in the purified water production apparatus 10, and when supplying purified water to the personal dialysis apparatus, the treatment unit has a guide provided by the personal dialysis apparatus at the second end of the purified water supply line 102. With the water pipe connected and the drain pipe of the personal dialysis machine connected to the first end of the second drainage introduction line 108, the electromagnetic valve 50 in the purified water production device 10 is opened to open the pressurizing pump. By driving the 60, the supply of raw water to the activated carbon filter 12 and the back-penetration membrane module 14 and the supply of purified water to the personal dialysis machine are started.

The processing unit stops the production of purified water in the purified water production apparatus 10, and when the supply of purified water to the personal dialysis apparatus is stopped, the pressurizing pump 60 in the purified water production apparatus 10 is stopped. By closing the electromagnetic valve 50, the supply of purified water to the personal dialysis machine is stopped.

The processing unit may be realized by dedicated hardware, and the processing unit is composed of a memory and a central processing unit (CPU), and a program for realizing the functions of the processing unit is stored in the memory. The function may be realized by loading and executing it.

(Mechanism of action)
1. 1. In the counter 1 with a built-in purified water production device of the first embodiment described above, the first end is connected to the purified water outlet 22 of the purified water production device 10, and the second end is the storage counter 2. With a purified water supply line 102 arranged so as to be connectable to other lines outside the above; with a first purified water return line 110 (drainage line) for returning purified water from the outside of the storage counter 2 to the purified water production apparatus 10. It is provided with a bypass line 114 that is detachably connected to the second end of the purified water supply line 102 and directly feeds the purified water that has passed through the purified water supply line 102 to the first purified water return line 110. Therefore, even when the purified water is not used in the personal dialysis apparatus, the purified water produced by the purified water producing apparatus 10 can flow to the purified water supply line 102. Therefore, the accumulated water in the purified water production apparatus 10 and the purified water supply line 102 can be discharged to the first purified water return line 110 via the bypass line 114. As a result, contamination of the purified water production apparatus 10 and the purified water supply line 102 can be suppressed.
Further, since the second end of the purified water supply line 102 is sealed by the bypass line 114 and is not in the open state, bacteria are less likely to adhere to the second end of the purified water supply line 102. As a result, bacteria and endotoxin are less likely to occur in the retained water of the purified water supply line 102.
Further, since the purified water production apparatus 10 can be discharged from the purified water production apparatus 10 and the purified water supply line 102 while the purified water production apparatus 10 is stored in the storage counter 2 provided in the hospital room, the treatment room, or the like, purification can be performed. It does not take time and effort to suppress the contamination of the water production apparatus 10 and the purified water supply line 102, and it is not necessary to transport the purified water production apparatus 10 for the operation to suppress the contamination.

2. 2. Further, in the counter 1 with a built-in purified water production apparatus of the first embodiment described above, a sample port 132 capable of taking out a part of purified water flowing through the bypass line 114 is provided in the middle of the bypass line 114. Therefore, the purified water flowing in the bypass line 114 can be easily extracted without being contaminated. In addition, the accumulated water in the bypass line 114 can be drained. This allows us to meet the more stringent demands for pollution.

3. 3. Further, the counter 1 with a built-in purified water production device of the first embodiment described above further includes a control device 80 for controlling the start and stop of the supply of purified water from the purified water production device 10 to the drainage line. Therefore, the accumulated water in the purified water production apparatus 10 and the purified water supply line 102 can be discharged periodically.

<Maintenance method for the counter with built-in purified water production equipment>
When it is not necessary to supply purified water to a personal dialysis machine described later, the first end of the bypass line 114 is connected to the second end of the purified water supply line 102, and the first purified water return line. Maintenance (maintenance management) of the counter 1 built in the purified water production apparatus is performed in a state where the second end portion of the bypass line 114 is connected to the first end portion of the 110.
Hereinafter, the maintenance method of the counter 1 built in the purified water production apparatus of the first embodiment will be specifically described.

(Supplying purified water from the purified water production equipment to the drainage line)
When the purified water production device 10 produces purified water and the purified water is sent from the purified water production device 10 to the drain line, the processing unit of the control device 80 opens the electromagnetic valve 50 in the purified water production device 10. , Drive the pressurizing pump 60. As a result, the supply of raw water to the activated carbon filter 12 and the reverse osmosis membrane module 14 is started.

The raw water supplied from the water supply line 100 through the raw water supply line 30 is passed through the activated carbon filter 12. The raw water from which the residual chlorine in the raw water has been removed by the activated carbon filter 12 passes through the raw water transfer line 32, is boosted by the pressurizing pump 60 of the raw water transfer line 32, and then is supplied to the reverse osmosis membrane module 14. A part of the raw water supplied to the reverse osmosis membrane module 14 permeates the reverse osmosis membrane to become purified water, and is discharged to the purified water transfer line 34. On the other hand, the remaining raw water that has not penetrated the reverse osmosis membrane becomes concentrated water, which is discharged from the device drainage line 36 to the outside of the device through the concentrated water discharge line 38. A part of the concentrated water is returned to the raw water transfer line 32 via the concentrated water return line 40 branched from the concentrated water discharge line 38, and is reused as raw water.

The purified water obtained in the reverse osmosis membrane module 14 is sent to the first purified water return line 110 (drainage line) via the purified water transfer line 34, the purified water supply line 102 and the bypass line 114. As a result, the retained water retained in the purified water production apparatus 10 (purified water transfer line 34) and the purified water supply line 102 is discharged to the first purified water return line 110 via the bypass line 114.
The purified water (retained water) sent to the first purified water return line 110 passes through the first purified water return line 110, the equipment drainage line 36, the first drainage introduction line 106, and the main drainage line 104. Is discharged to the outside.

After a lapse of a predetermined time, the processing unit of the control device 80 stops the pressurizing pump 60 in the purified water production device 10 and closes the electromagnetic valve 50 to supply raw water to the activated carbon filter 12 and the reverse osmosis membrane module 14. In addition, the supply of purified water to the first purified water return line 110 (drainage line) via the purified water transfer line 34, the purified water supply line 102 and the bypass line 114 is stopped.

The water of purified water from the purified water production device 10 to the drainage line is performed, for example, based on the operation schedule stored in the storage unit of the calendar timer of the control device 80.
The frequency of sending purified water from the purified water production apparatus 10 to the drainage line is preferably once every 30 to 180 minutes. The time for sending purified water from the purified water production apparatus 10 to the drainage line is preferably 1 to 120 minutes at a time.

(Mechanism of action)
In the maintenance method of the counter 1 with built-in purified water production apparatus of the first embodiment described above, purified water is periodically produced by the purified water production apparatus 10, and the purified water is bypassed to the purified water supply line 102. Since the water is sent to the drainage line via the line 114, the accumulated water in the purified water production apparatus 10 and the purified water supply line 102 can be discharged to the first purified water return line 110 via the bypass line 114. As a result, contamination of the purified water production apparatus 10 and the purified water supply line 102 can be suppressed.
Further, while the purified water production apparatus 10 is stored in the storage counter 2 provided in the hospital room, the treatment room, etc., the accumulated water is discharged from the purified water production apparatus 10 and the purified water supply line 102, and the purified water supply line 102 and the like. Since it is possible to disinfect the purified water, it does not take time and effort to suppress the contamination of the purified water production apparatus 10 and the purified water supply line 102, and the purified water production apparatus 10 is transported for the operation to suppress the contamination. You don't have to.

<Supply of purified water to personal dialysis machines>
FIG. 2 is a schematic configuration diagram showing a state in which a personal dialysis machine is connected to the counter built in the purified water production device of FIG.
When supplying purified water to the personal dialysis machine 200, the first end of the bypass line 114 is removed from the second end of the purified water supply line 102. Then, the end of the water pipe 202 of the personal dialysis machine 200 is connected to the second end of the purified water supply line 102, and the personal dialysis machine is connected to the first end of the second drainage introduction line 108. The end of the drain pipe 204 of the 200 is connected.

When purified water is produced in the purified water production apparatus 10 and the purified water is supplied to the personal dialysis apparatus 200, the processing unit of the control device 80 opens the electromagnetic valve 50 in the purified water production apparatus 10 to pressurize the water. By driving the pump 60, the supply of raw water to the activated carbon filter 12 and the reverse osmosis membrane module 14 and the supply of purified water to the personal dialysis machine 200 are started. The drainage from the personal dialysis machine 200 is discharged to the main drainage line 104 via the second drainage introduction line 108.

When the production of purified water is stopped in the purified water production apparatus 10 and the supply of purified water to the personal dialysis apparatus 200 is stopped, the processing unit of the control device 80 causes a pressurizing pump in the purified water production apparatus 10. By stopping the 60 and closing the electromagnetic valve 50, the supply of purified water to the personal dialysis machine 200 is stopped.

<< Second Embodiment >>
<Counter with built-in purified water production equipment>
FIG. 3 is a schematic configuration diagram showing a second embodiment of the counter built in the purified water production apparatus of the present invention.
Hereinafter, those having the same configuration as that of the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

The counter 1 with a built-in purified water production device of the second embodiment is different from the counter 1 with a built-in purified water production device of the first embodiment in the following points.
-With the drug solution stock solution bottle 92 (means for adding the drug solution stock solution) for storing the drug solution stock solution; the first end branches from the middle of the check valve 126 of the first purified water return line 110, and the second With a second purified water return line 112 whose end is connected to the second purified water inlet 28 of the purified water production apparatus 10; the first end is connected to the chemical stock solution bottle 92 and the second end is The drug solution stock solution supply line 116 (means for adding the drug solution stock solution) that joins the purified water supply line 102; the drug solution stock solution supply line 116 branches off from the purified water supply line 102 on the upstream side of the point where the drug solution stock solution supply line 116 joins. It is provided with a flush water supply line 118 that merges.
A location where the first purified water return line 110 and the second purified water return line 112 branch off is provided, and the flow of purified water is directed to the first purified water return line 110 side and the second purified water return line 112 side. A three-way valve 120 that switches to and; a three-way valve that is provided at a location where the purified water supply line 102 branches off from the purified water supply line 102 and switches the flow of purified water between the purified water supply line 102 and the flush water supply line 118. 122; An electromagnetic valve 124 (chemical solution stock solution adding means) that is provided in the middle of the chemical solution stock solution supply line 116 on the downstream side of the point where the washing water supply line 118 joins and opens and closes the chemical solution stock solution supply line 116; It is provided with a check valve 128 (chemical solution stock solution adding means) provided in the middle of the chemical solution stock solution supply line 116 on the upstream side of the point where the supply lines 118 meet.
A chemical solution stock solution pump 130 (chemical solution stock solution adding means) provided near the outlet of the chemical solution stock solution bottle 92 on the upstream side of the check valve 128 of the chemical solution stock solution supply line 116 is provided.
The control device 80 (control means) is electrically connected to the purified water production device 10 and is electrically connected to the three-way valve 120, the three-way valve 122, the solenoid valve 124, and the chemical stock solution pump 130 to produce purified water. It controls the device 10, each valve and the pump.

(Purified water production equipment)
The purified water production apparatus 10 in the second embodiment is different from the purified water production apparatus 10 in the first embodiment in the following points.
The device includes an in-device purified water return line 42 in which the first end is connected to the first purified water return line 110 at the second purified water inlet 28 and the second end joins the raw water transfer line 32.
A check valve 54 provided in the middle of the purified water return line 42 in the apparatus is provided.
A heater 94 (heating means) and a temperature sensor (not shown) provided in the middle of the purified water return line 42 in the device on the upstream side of the check valve 54 are provided.
A control device 80 that controls these is electrically connected to the heater 94 and the temperature sensor.
The solenoid valve 50 is provided in the middle of the raw water transfer line 32 on the upstream side of the point where the concentrated water return line 40 and the purified water return line 42 in the apparatus meet.
The pressurizing pump 60 is provided in the middle of the raw water transfer line 32 on the downstream side of the point where the concentrated water return line 40 and the purified water return line 42 in the apparatus meet.

(Purified water return line)
The first purified water return line 110 and the second purified water return line 112 are lines for returning purified water from the outside of the storage counter 2 to the purified water production apparatus 10.

The purified water returned to the purified water production apparatus 10 through the second purified water return line 112 is returned to the raw water transfer line 32 via the in-equipment purified water return line 42 and reused as raw water. The purified water returned to the raw water transfer line 32 is the raw water transfer line 32, the purified water transfer line 34, the purified water supply line 102, the bypass line 114, a part of the first purified water return line 110, and the second. It circulates in a circulation line including a purified water return line 112 and an in-device purified water return line 42.

(Means for adding chemical stock solution)
The chemical solution stock solution adding means includes a chemical solution stock solution bottle 92, a chemical solution stock solution supply line 116, an electromagnetic valve 124, a check valve 128, and a chemical solution stock solution pump 130, and is composed of purified water in the purified water production apparatus 10. It is a means for adding a chemical stock solution to the product. By driving the drug solution stock solution adding means, that is, opening the solenoid valve 124 and driving the drug solution stock solution pump 130, the drug solution stock solution is added to the purified water of the purified water supply line 102.

(Control means)
The control device 80 is roughly configured with a processing unit (not shown), an interface unit (not shown), and a calendar timer (not shown).
Further, a display touch panel 82 is electrically connected to the control device 80 as an input device and a display device.

The control device 80 starts and stops sending purified water from the purified water production device 10 to the drainage line; circulates and stops the circulation of purified water to the circulation line; starts and stops heating of purified water; and a chemical solution to purified water. Start and stop of addition of undiluted solution; Start and stop of supply of purified water to personal dialysis machine can be controlled, and these controls can be performed at any date and time set in the calendar timer as needed. It is a thing.

The calendar timer has a clock unit that manages the date and time, and a storage unit that stores the operation schedule of the purified water production apparatus. The calendar timer is designed to be able to transmit an electric signal at a set date and time stored in the storage unit.

The interface unit electrically connects the water quality sensor 70, the flow rate sensor 72, the heater 94 and the temperature sensor, the solenoid valve, the three-way valve and the pump provided in each line, the display touch panel 82, etc., and the processing unit. To do.

Based on the electric signal from the calendar timer, the operation signal input to the processing unit, etc., the processing unit drives the heater 94, opens and closes the solenoid valves provided in each line, switches the three-way valve, drives the pump, etc. It controls.
Specifically, the processing unit performs the following control, for example.

The treatment unit produces purified water in the purified water production apparatus 10, and when the purified water is sent from the purified water production apparatus 10 to the drainage line, the bypass line 114 is connected to the second end of the purified water supply line 102. The electromagnetic valve in the purified water production apparatus 10 in a state where the first end portion of the bypass line 114 is connected and the second end portion of the bypass line 114 is connected to the first end portion of the first purified water return line 110. 50 is opened, the electromagnetic valve 124 in the chemical stock solution addition means is closed, the flow of purified water in the three-way valve 122 is switched to the purified water supply line 102 side, and the flow of purified water in the three-way valve 120 is changed to the first purified water return line 110. By switching to the side and driving the pressurizing pump 60, the raw water is supplied to the activated carbon filter 12 and the back-penetrating membrane module 14, and the purified water obtained by the back-penetrating membrane module 14 is purified water transfer line 34 and purified. Water supply to the first purified water return line 110 (drainage line) via the water supply line 102 and the bypass line 114 is started.

When the processing unit stops the production of purified water in the purified water production apparatus 10 and stops the supply of purified water from the purified water production apparatus 10 to the drainage line, the pressurizing pump 60 in the purified water production apparatus 10 The supply of raw water to the activated carbon filter 12 and the reverse osmosis membrane module 14 and the first purification via the purified water transfer line 34, the purified water supply line 102 and the bypass line 114 by stopping the electromagnetic valve 50. It stops the supply of purified water to the water return line 110 (drainage line).

The treatment unit includes a raw water transfer line 32, a purified water transfer line 34, a purified water supply line 102, a bypass line 114, a part of the first purified water return line 110, a second purified water return line 112, and purified water in the apparatus. When the purified water is circulated in the circulation line including the return line 42, the electromagnetic valve 50 in the purified water production apparatus 10 is closed, and the flow of the purified water in the three-way valve 120 is switched to the second purified water return line 112 side. By driving the pressurizing pump 60, the circulation of purified water in the circulation line is started.

The treatment unit includes a raw water transfer line 32, a purified water transfer line 34, a purified water supply line 102, a bypass line 114, a part of the first purified water return line 110, a second purified water return line 112, and purified water in the apparatus. When the circulation of purified water in the circulation line including the return line 42 is stopped, the circulation of purified water in the circulation line is stopped by stopping the pressurizing pump 60 in the purified water production apparatus 10.

When heating the purified water in the purified water return line 42 in the apparatus, the processing unit starts heating the purified water in the purified water return line 42 in the apparatus by driving the heater 94 in the purified water production apparatus 10. It is a thing.

When the processing unit stops the heating of the purified water in the purified water return line 42 in the apparatus, the processing unit stops the heater 94 in the purified water production apparatus 10 to heat the purified water in the purified water return line 42 in the apparatus. It is something to stop.

When the chemical solution stock solution stored in the chemical solution stock solution bottle 92 is added to the purified water of the purified water supply line 102, the processing unit drives the chemical solution stock solution adding means, that is, opens the electromagnetic valve 124 and opens the chemical solution stock solution pump. By driving the 130, the addition of the chemical stock solution to the purified water of the purified water supply line 102 is started.

When stopping the addition of the chemical solution stock solution to the purified water of the purified water supply line 102, the treatment unit stops the chemical solution stock solution pump 130 and closes the electromagnetic valve 124 to the purified water of the purified water supply line 102. This is to stop the addition of the undiluted solution of the chemical solution.

The processing unit produces purified water in the purified water production apparatus 10, and when supplying purified water to the personal dialysis apparatus, the guide provided by the personal dialysis apparatus at the second end of the purified water supply line 102. With the water pipe connected and the drain pipe of the personal dialysis machine connected to the first end of the second drainage introduction line 108, the electromagnetic valve 50 in the purified water production device 10 is opened and the chemical stock solution is added. By closing the electromagnetic valve 124 in the means, switching the flow of purified water in the three-way valve 122 to the purified water supply line 102 side, and driving the pressurizing pump 60, the raw water is supplied to the activated carbon filter 12 and the back-penetration membrane module 14. , And to start supplying purified water to personal dialysis machines.

The processing unit stops the production of purified water in the purified water production apparatus 10, and when the supply of purified water to the personal dialysis apparatus is stopped, the pressurizing pump 60 in the purified water production apparatus 10 is stopped. By closing the electromagnetic valve 50, the supply of purified water to the personal dialysis machine is stopped.

The processing unit may be realized by dedicated hardware, and the processing unit is composed of a memory and a central processing unit (CPU), and a program for realizing the functions of the processing unit is stored in the memory. The function may be realized by loading and executing it.

(Mechanism of action)
In the counter 1 with a built-in purified water production device of the second embodiment described above, in addition to the mechanisms of action 1 to 3 of the counter 1 with a built-in purified water production device of the first embodiment, the following mechanism of action is applied. Have.

4. In the counter 1 with a built-in purified water production apparatus of the second embodiment described above, since the heating means (heater 94) for heating the purified water is provided, the hot water obtained by heating the purified water. The raw water transfer line 32, the purified water transfer line 34, the purified water supply line 102, the bypass line 114, a part of the first purified water return line 110, the second purified water return line 112, and the in-device purified water return line. It can be circulated in a circulation line consisting of 42. As a result, the circulation line and the reverse osmosis membrane module 14 can be disinfected.
Further, since the chemical solution stock solution adding means (chemical solution stock solution bottle 92, chemical solution stock solution supply line 116, electromagnetic valve 124, check valve 128 and chemical solution stock solution pump 130) for adding the chemical solution stock solution to the purified water is provided, the purified water is provided with the chemical solution stock solution. The disinfectant chemical solution prepared by adding the chemical solution stock solution can be passed through the purified water supply line 102, the bypass line 114, the first purified water return line 110, and the like. As a result, each line can be disinfected.
Further, when purified water is not used in a personal dialysis machine, it can be disinfected at all times, and disinfection of each line or the like can be easily performed.

5. Further, the counter 1 with a built-in purified water production device of the second embodiment described above is periodically provided with a control device 80 for controlling the drive of the heating means (heater 94) and the drive of the chemical solution stock solution addition means. It is possible to disinfect the purified water supply line 102 and the like.

<Maintenance method for the counter with built-in purified water production equipment>
Hereinafter, the maintenance method of the counter 1 built in the purified water production apparatus of the second embodiment will be specifically described.

(Supplying purified water from the purified water production equipment to the drainage line)
The water supply of purified water from the purified water production apparatus 10 to the drainage line in the second embodiment is different from that in the first embodiment in the following points.
-Before driving the pressurizing pump 60, the processing unit of the control device 80 opens the electromagnetic valve 50 in the purified water production device 10 and closes the electromagnetic valve 124 in the chemical stock solution adding means to close the purified water in the three-way valve 122. The flow is switched to the purified water supply line 102 side, and the flow of purified water in the three-way valve 120 is switched to the first purified water return line 110 side.

(Disinfection of circulation line and reverse osmosis membrane module with hot water)
From the raw water transfer line 32, the purified water transfer line 34, the purified water supply line 102, the bypass line 114, a part of the first purified water return line 110, the second purified water return line 112, and the in-device purified water return line 42. When disinfecting the circulation line and the reverse osmosis membrane module 14 with hot water, first, purified water is circulated in the circulation line. Specifically, the processing unit of the control device 80 closes the solenoid valve 50 in the purified water production device 10, switches the flow of purified water in the three-way valve 120 to the second purified water return line 112 side, and pressurizes the pump 60. By driving, the circulation of purified water in the circulation line is started.

While circulating the purified water to the circulation line, the processing unit of the control device 80 drives the heater 94 in the purified water production device 10 to start heating the purified water in the purified water return line 42 in the device. As a result, hot water is circulated in the circulation line, and the circulation line and the reverse osmosis membrane module 14 are disinfected with hot water.

After a lapse of a predetermined time, the processing unit of the control device 80 stops the heater 94 in the purified water production device 10, thereby stopping the heating of the purified water in the purified water return line 42 in the device. After confirming that the purified water has returned to room temperature based on the temperature information (electrical signal) of the purified water sent from the temperature sensor in the processing unit of the control device 80, the processing unit of the control device 80 manufactures the purified water. By stopping the pressurizing pump 60 in the device 10, the circulation of purified water in the circulation line is stopped.

Disinfection with hot water is performed based on, for example, an operation schedule stored in the storage unit of the calendar timer of the control device 80.
The frequency of disinfection with hot water is preferably once every 1 to 7 days.
The time for circulating hot water in the circulation line is preferably 10 to 60 minutes each time.
The temperature of hot water is adjusted by controlling the heater 94 by the processing unit of the control device 80 based on the temperature information (electric signal) of purified water obtained by the temperature sensor. The temperature of the hot water is preferably 80 to 97 ° C.

(Disinfection with a chemical solution for disinfection of purified water supply line)
When disinfecting the purified water supply line 102 or the like with a chemical solution for disinfection, first, purified water is produced in the purified water production apparatus 10 according to the above procedure, and purified water is sent from the purified water production apparatus 10 to the drainage line. To do.

While supplying purified water from the purified water production device 10 to the drainage line, the processing unit of the control device 80 drives the chemical solution stock solution adding means, that is, the electromagnetic valve 124 is opened and the chemical solution stock solution pump 130 is driven for purification. Addition of the chemical solution stock solution to the purified water of the water supply line 102 is started to prepare a chemical solution for disinfection. As a result, the disinfectant chemical solution is passed through the purified water supply line 102, the bypass line 114, the first purified water return line 110, and the like, and each line is disinfected with the disinfectant chemical solution.

After a lapse of a predetermined time, the processing unit of the control device 80 stops the chemical solution stock solution pump 130 and closes the electromagnetic valve 124 to stop the addition of the chemical solution stock solution to the purified water of the purified water supply line 102 and pressurize it. By stopping the pump 60 and closing the electromagnetic valve 50, the supply of purified water from the purified water production apparatus 10 to the drainage line is stopped. As it is, the purified water supply line 102, the bypass line 114, the first purified water return line 110, and the like are immersed in a disinfectant chemical solution for disinfection.

After a lapse of a predetermined time, the purified water production apparatus 10 produces purified water, and the purified water production apparatus 10 sends purified water to the drainage line to supply purified water to the purified water supply line 102, the bypass line 114, and the first purified water. Rinse the return line 110 and the like.
After a lapse of a predetermined time, the flow of purified water in the three-way valve 122 is switched to the washing water supply line 118 side, and the chemical solution stock solution supply line 116 is rinsed.
After a lapse of a predetermined time, the flow of purified water in the three-way valve 122 is switched to the purified water supply line 102 side, the pressurizing pump 60 is stopped, and the electromagnetic valve 50 is closed to purify the purified water production apparatus 10 to the drainage line. Stop sending water.

Disinfection with the disinfectant chemical solution is performed, for example, based on the operation schedule stored in the storage unit of the calendar timer of the control device 80.
The frequency of disinfection with the disinfectant chemical solution is preferably once every 1 to 7 days.
The time for passing the disinfectant chemical solution through each line is preferably 1 to 120 minutes each time.
The time for immersing each line in a disinfectant chemical solution for disinfection is preferably 30 to 1440 minutes each time.
The rinsing time of the purified water supply line 102, the bypass line 114, the first purified water return line 110, etc. is preferably 15 to 120 minutes each time.
The rinsing time of the chemical stock solution supply line 116 is preferably 2 to 30 minutes each time.

Examples of the chemical stock solution include an aqueous solution of sodium hypochlorite, peracetic acid, formalin and the like.
The concentration of the drug solution stock solution in the drug solution stock solution bottle 92 is, for example, 60,000 to 120,000 ppm in the case of an aqueous sodium hypochlorite solution.
The concentration of the disinfectant chemical solution prepared by adding the chemical solution stock solution to purified water is, for example, 1 to 2,000 ppm in the case of an aqueous sodium hypochlorite solution.

(Mechanism of action)
In the maintenance method of the counter 1 with a built-in purified water production apparatus of the second embodiment described above, purified water is periodically produced by the purified water production apparatus 10, and the purified water is bypassed with the purified water supply line 102. Since the water is sent to the drainage line via the line 114, the accumulated water in the purified water production apparatus 10 and the purified water supply line 102 can be discharged to the first purified water return line 110 via the bypass line 114. As a result, contamination of the purified water production apparatus 10 and the purified water supply line 102 can be suppressed.
Further, when purified water is not used in the personal dialysis machine 10, disinfection is always possible, and disinfection of each line or the like can be easily performed.
Further, while the purified water production apparatus 10 is stored in the storage counter 2 provided in the hospital room, the treatment room, etc., the accumulated water is discharged from the purified water production apparatus 10 and the purified water supply line 102, and the purified water supply line 102 and the like. Since it is possible to disinfect the purified water, it does not take time and effort to suppress the contamination of the purified water production apparatus 10 and the purified water supply line 102, and the purified water production apparatus 10 is transported for the operation to suppress the contamination. You don't have to.

<Supply of purified water to personal dialysis machines>
FIG. 4 is a schematic configuration diagram showing a state in which a personal dialysis machine is connected to the counter built in the purified water production device of FIG.
When supplying purified water to the personal dialysis machine 200, the first end of the bypass line 114 is removed from the second end of the purified water supply line 102. Then, the end of the water pipe 202 of the personal dialysis machine 200 is connected to the second end of the purified water supply line 102, and the personal dialysis machine is connected to the first end of the second drainage introduction line 108. The end of the drain pipe 204 of the 200 is connected.

When purified water is produced in the purified water production apparatus 10 and the purified water is supplied to the personal dialysis apparatus 200, the processing unit of the control device 80 opens the electromagnetic valve 50 in the purified water production apparatus 10 to open the chemical solution stock solution. By closing the electromagnetic valve 124 in the addition means, switching the flow of purified water in the three-way valve 122 to the purified water supply line 102 side, and driving the pressurizing pump 60, the raw water to the activated carbon filter 12 and the reverse osmosis membrane module 14 The supply and the supply of purified water to the personal dialysis machine 200 are started. The drainage from the personal dialysis machine 200 is discharged to the main drainage line 104 via the second drainage introduction line 108.

When the production of purified water is stopped in the purified water production apparatus 10 and the supply of purified water to the personal dialysis apparatus 200 is stopped, the processing unit of the control device 80 causes a pressurizing pump in the purified water production apparatus 10. By stopping the 60 and closing the electromagnetic valve 50, the supply of purified water to the personal dialysis machine 200 is stopped.

<< Other Embodiments >>
The counter with a built-in purified water production device of the present invention includes a storage counter having a storage space inside; a purified water production device stored in the storage space of the storage counter; and a first end for purifying the purified water production device. A purified water supply line that is connected to the water outlet and has a second end connectable to other lines outside the storage counter; a drainage line that drains drainage to the outside; a second of the purified water supply line. It suffices if it is provided with a bypass line that is detachably connected to the end of the water and that directly feeds purified water that has passed through the purified water supply line to the drainage line. The counter 1 with a built-in purified water production apparatus of the embodiment is not limited to this.

For example, in the counter built in the purified water production apparatus of the present invention, only one of the heating means for heating the purified water and the chemical solution stock solution adding means for adding the chemical solution stock solution to the purified water may be provided, and neither of them may be provided. Good.
Further, in the counter built in the purified water production apparatus of the present invention, the second end of the bypass line may be connected to the second drainage introduction line.
Further, in the counter built in the purified water production apparatus of the present invention, the purified water sent to the first purified water return line via the bypass line does not drain but goes through the second purified water return line. It may be returned to the purified water production apparatus 10 and reused as raw water.
Further, in the counter built in the purified water production apparatus of the present invention, it is not always necessary to provide a control means.
Further, in the counter built in the purified water production apparatus of the present invention, it is not always necessary to provide the second wastewater introduction line.
Further, in the counter built in the purified water production apparatus of the present invention, the ultrafiltration membrane filter 90 does not necessarily have to be provided.
Further, the purified water production apparatus may be any one capable of producing purified water, and a known purified water production apparatus may be used as the purified water production apparatus.
Further, the counter built in the purified water production apparatus of the present invention may be provided with a notification means for notifying that disinfection is in progress. Examples of the notification means include a display on the screen of the display device of the control device 80, a lamp, and the like.

The counter with a built-in purified water production device of the present invention is useful as a counter provided in a hospital room, a treatment room, or the like where dialysis treatment or the like is performed.

1 Counter with built-in purified water production equipment, 2 Storage counter, 10 Purified water production equipment, 12 Activated charcoal filter, 14 Reverse osmosis membrane module, 20 Raw water inlet, 22 Purified water outlet, 24 First purified water inlet, 26 Drainage outlet, 28 2nd purified water inlet, 30 raw water supply line, 32 raw water transfer line, 34 purified water transfer line, 36 equipment drainage line, 38 concentrated water discharge line, 40 concentrated water return line, 42 in-equipment purified water return line, 50 Electromagnetic valve, 52 check valve, 54 check valve, 60 pressurizing pump, 70 water quality sensor, 72 flow sensor, 80 controller, 82 display touch panel, 90 ultra-reverse osmosis membrane filter, 92 chemical stock solution bottle, 94 heater, 100 Water supply line, 102 purified water supply line, 104 main drainage line, 106 first drainage introduction line, 108 second drainage introduction line, 110 first purified water return line, 112 second purified water return line, 114 bypass Line, 116 Purified water supply line, 118 Purified water supply line, 120 Three-way valve, 122 Three-way valve, 124 Electromagnetic valve, 126 Check valve, 128 Check valve, 130 Chemical stock solution pump, 132 Sample port, 200 Personal dialysis machine , 202 water conduit, 204 drainage pipe.

Claims (6)

A storage counter with a storage space inside,
Purified water production equipment stored in the storage space of the storage counter,
A purified water supply line in which a first end is connected to a purified water outlet of the purified water production apparatus and a second end is arranged so as to be connectable to another line outside the storage counter.
A purified water return line that returns purified water from the outside of the storage counter to the purified water production device.
A drainage line in which the first end is arranged so as to be connectable to other lines outside the storage counter and the second end joins the main drainage line .
A counter with a built-in purified water production device, which is detachably connected to the second end of the purified water supply line and has a bypass line for sending purified water that has passed through the purified water supply line to the purified water return line. ..
The counter with a built-in purified water production apparatus according to claim 1, wherein a sample port is provided in the middle of the bypass line from which a part of the purified water flowing through the bypass line can be taken out. The counter with a built-in purified water production apparatus according to claim 1 or 2, further comprising a control means for controlling the start and stop of supply of the purified water from the purified water production apparatus to the purified water return line . The purified water production according to any one of claims 1 to 3, further comprising either or both of a heating means for heating the purified water and a chemical solution stock solution adding means for adding the chemical solution stock solution to the purified water. Built-in device counter. The counter with a built-in purified water production apparatus according to claim 4, further comprising a control means for controlling one or both of the driving of the heating means and the driving of the chemical stock solution addition means. The maintenance method for the counter built in the purified water production apparatus according to any one of claims 1 to 5.
Maintenance of a counter with a built-in purified water production device that periodically produces purified water with the purified water production device and sends the purified water to the purified water return line via the purified water supply line and the bypass line. Method.

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