JP3483936B2 - Filtration membrane type water treatment equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it easy to replace a filtration membrane module by attaching a dedicated stand for a filtration membrane module to a filtration membrane type water treatment device, and in addition, it is possible to work in a space-saving manner The present invention relates to a filtration membrane type water treatment device capable of improving operation efficiency such as inspection and replacement.

[0002]

2. Description of the Related Art Various membrane separation technologies have been developed in the medical field, such as medical ultrapure water, pre-surgical hand washing water, sterile water for intermediate materials, sterile water, pyrogen-free water, and other purified water for artificial dialysis. It is widely used in the production of medical water in Japan. Further, along with the development of a separation membrane, a manufacturing apparatus for medical water for which such a separation membrane is installed or a control system thereof has been developed.

In order to produce medical water such as pre-operative hand wash water and purified water for artificial dialysis using a filtration membrane module, for example, softening and activated carbon treatment is performed as a pretreatment of raw water. Is filtered by a filtration membrane module, the filtrate is stored in a tank, and is irradiated with an ultraviolet germicidal lamp to be supplied as medical water. As a device for automatically controlling these to produce medical water, a water softening device for pretreatment of raw water, an activated carbon filtration device, a reverse osmosis membrane module, a tank, a flow meter, a water quality meter, and an ultraviolet ray are generally used. Sterilization lamps, pumps, etc. will be installed. In addition, a backwash cleaning mechanism to prevent clogging of the filtration membrane module caused by operation, a tank liquid level sensor for switching the operation and stop of the filtration membrane module using the amount of liquid in the tank as an index, or these A mechanism for controlling the operation / stop of the used pretreatment device is also installed as necessary. Traditionally,
The filtration membrane type water treatment device as a medical water production device is configured by appropriately piping and wiring the above-mentioned various constituent devices having different shapes, and various operations such as operation of the filtration membrane module and time of backwashing and washing. A mechanism that automatically performs various controls such as control based on physical or other indicators, control of pumps and valves associated therewith, softening as a pretreatment, and switching control between activated carbon treatment and filtration membrane module operation Has been developed as a single unit.

[0004]

Due to the nature of such a filtration membrane type water treatment apparatus, deterioration and breakage of the filtration membrane module, replacement due to performance deterioration, and periodic inspection of the filtration membrane module, etc. Therefore, the maintenance and inspection operation of the filtration membrane module is required. However, for convenience of use, an operation panel for various control operations is often arranged on the front surface of the device, and a filtration membrane module is often arranged at the rear of the device. For maintenance and inspection operations of the filtration membrane module, it is common to provide a special filtration membrane module outlet on the side or rear side of the device. This means that a space for maintenance and inspection work of the filtration membrane module is required in the vicinity of the take-out port of the device in order to replace the membrane module, perform an inspection operation, and the like. Especially when the filtration membrane type water treatment device is for producing medical water, the installation space is often limited, and in a place where such a space cannot be secured sufficiently, maintenance of the filtration membrane module is required every time. However, it may be necessary to move the main body of the apparatus, or it may be necessary to modify the apparatus to have a special shape according to the installation location, or to install a new installation space or modify the installation cost. For this reason, movement of the device, management of wiring, piping, etc. are required every time the filter membrane module is maintained and inspected, which imposes a time and space burden. Under such circumstances, various functions of the filtration membrane type water treatment device are not impaired, a special work space for maintenance and inspection of the filtration membrane module is not required, and such maintenance and inspection and replacement operation are easy. There is a strong demand for the development of a device that can.

[0005]

[Means for Solving the Problems] In view of such a current situation,
The present inventors pump and filtration membranes piping of the filtration membrane type water treatment apparatus including a module as a result of wire were examined in detail, Po
It was found that the above problem can be solved by installing the filtration membrane module together with a specific pipe on a dedicated frame except the pump, and making the dedicated frame movable, and completed the present invention.

That is , the present invention relates to a pump and a filtration.
A filtration membrane type water treatment device including a membrane module, comprising:
Except for the filter , a dedicated stand that incorporates a part of the filtration membrane module and the connection pipe of the filtration membrane module is installed, and the dedicated stand can be moved to the outside of the apparatus. Is. Further, the present invention provides a filtration membrane type water treatment device characterized in that the filtration membrane module is either a reverse osmosis membrane module or an ultrafiltration membrane module.

[0007]

EXAMPLES A filtration membrane type water treatment device according to the present invention will be described based on examples. However, the present invention is not limited to this.

An example of the arrangement of various components of the filtration membrane type water treatment apparatus according to the present invention will be described with reference to FIG. 1 and FIG. 2 showing a system flow. First, the raw water is the raw water pressurizing pump 4
Is sent to the prefilter 5, the water softening device 6 and the activated carbon filtration device 7, where the raw water is pretreated. The constituent devices for these pretreatments are collectively arranged on the left side of the device. The raw water that has been softened and filtered by activated carbon is sent to the filtration membrane module 10 as activated carbon-treated water through the check filter 8 by the high-pressure pump 9. The high-pressure pumps 9 are arranged substantially in the center of the filtration membrane type water treatment device 1, and the filtration membrane modules 10 are arranged in a row on the dedicated frame 2 on the right side of the device. A pipe for transferring the activated carbon-treated water to the filtration membrane module 10 is provided on the exclusive mount 2, and is sent to the filtration membrane module 10 through this transfer pipe to be passed through the filtration membrane module 10.
Filtered to produce filtered water. In addition, the manufactured filtered water is stored in a storage tank 1 by a transfer pipe from a dedicated mount 2.
Transferred to 3. The storage tank 13 is arranged at the rear part of the device, and is transferred to the outside of the device by a supply pump 16 installed for the purpose of supplying filtered water to the use spot. The supply pump 16 is installed behind the operation panel 3 arranged on the front surface of the apparatus.

A pipe for transferring the activated carbon treated water to the filtration membrane module 10 or transferring the filtered water to the storage tank 13 is fixed to the exclusive mount 2 according to the present invention. The filtration membrane module 10 is connected to a pipe fixed to the dedicated frame 2 by a detachable connector. Further, the dedicated frame 2 can be pulled out to the front side of the device, and by pulling the dedicated frame 2 to the front side of the device, the filtration membrane module 10 can be provided outside the device.
Can be exchanged. As a method of pulling out the exclusive mount 2 to the front of the apparatus, for example, a conventional method can be used such as installing a pulley under the exclusive mount or moving the exclusive mount to a rail arranged above to suspend the exclusive mount. it can. Further, as the connecting tool used for removing or connecting the filtration membrane module from the dedicated frame, it is sufficient that the pipe fixed to the dedicated frame and the filtration membrane module can be connected and then connected and fixed. As such a connecting tool, for example, a device sandwiching a pipe and a filtration membrane module, fixing with a screw or the like, screwing or the like can be used.

The pipe provided on the dedicated mount 2 according to the present invention is for transferring the activated carbon-treated water to the filtration membrane module or for transferring the filtration water produced by the filtration membrane module 10 to the storage tank 13. It is a tube. At least one filtration membrane module 10 may be provided on the dedicated mount 2, and a plurality of filtration membrane modules 10 may be provided. In FIG. 1, five filtration membrane modules are arranged in one row, but they may be arranged in a plurality of rows.
It can be selected in consideration of the capacity of the pretreatment device, the demand for filtered water, and the like. It suffices to install the pipes fixed to the dedicated frame so as to correspond to the number of filtration membrane modules using the connection portion with the filtration membrane module. The connection of the filtration membrane module can be selected in parallel or in series depending on the piping method, and may be appropriately selected according to the purpose of use.

The filtration membrane type water treatment apparatus according to the present invention can be provided with a backwashing cleaning mechanism for automatically performing backwashing cleaning while the filtration membrane module is in operation. An example of the operation of the pump and flow path valve at the time of filtration and at the time of backwashing when the filtration membrane module is implemented by cross-flow filtration will be described with reference to FIG.

First, in cross-flow filtration, the filtrate automatic valve 11 is opened, the wash water discharge automatic valve 14 and the backwash automatic valve 1 are used.
In the closed state, the pump 5 supplies raw water to the filtration membrane module by the pump 9 for filtration, and the produced filtrate is stored in the storage tank 1.
Store in 3. The raw water that does not pass through the filtration membrane module is sent to the filtration membrane module 10 again via the line 17 and the pump 9. On the other hand, in backwashing, the filtration membrane module
In order to remove turbidity components attached to the inner surface of the raw water side of the
The filtrate is supplied to the filtration membrane module in the opposite direction to that during filtration, the turbid components adhering to the membrane surface are peeled off, and then the turbid components are discharged out of the system. The backwashing of the filtration membrane module is performed once every 30 minutes to 3 hours, and the filtrate automatic valve 11 is closed.
The automatic wash water discharge valve 14 and the automatic backwash valve 15 are opened, and a part of the filtrate in the storage tank 13 is supplied to the filtration membrane module 10 by the backwash pump 14 in the direction opposite to that at the time of manufacturing the filtrate. To do. As a result, the turbid components on the inner surface of the raw water supply side of the filtration membrane module 10 are peeled off, and then the rinsing water containing the turbid components at a high concentration is passed through the path 15 to automatically wash the water.
To be discharged from the system. During backwashing, the raw water pressurizing pump 4 is stopped to stop the supply of raw water.

The filtration membrane type water treatment device 1 can be provided with the above-mentioned backwashing / cleaning mechanism. In this case, the dedicated pedestal 2 can be provided with pipes such as a line 18 for discharging suspended components to the outside of the system, a line 17 for cross flow, and a line 19 for backwash water. Also, electric wires for electrically controlling these can be installed as necessary. Further, a pressure adjusting valve for pressure adjustment, a pipe connected to the pressure adjusting valve, a flow meter for displaying the amount of concentrated water, a pipe connected to the flow meter, and the like can be installed in the dedicated base 2 .

The filtration membrane module 10 attached to the filtration membrane type water treatment device 1 according to the present invention is not particularly limited in size and type as long as it can be installed on a dedicated frame. Filtration membrane module
As the membrane, an ultrafiltration membrane module, a reverse osmosis membrane module, a microfiltration membrane, etc. can be used, and the membrane form of the hollow fiber membrane module is a plate and frame type,
Pleated type, spiral type, tubular type,
Hollow fiber type etc. are mentioned.

[0015]

According to the filtration membrane type water treatment device of the present invention,
By installing a dedicated stand for the filtration membrane module,
Even in a limited space such as in the medical field, it is possible to simplify the replacement work and maintenance inspection work of the filtration membrane module. Moreover, since the exclusive mount can be moved to the front of the apparatus, such maintenance and inspection and replacement operations can be extremely facilitated, and spatial and temporal work efficiency can be improved.

[Brief description of drawings]

FIG. 1 shows an example of an arrangement of a filtration membrane type water treatment device according to the present invention.

FIG. 2 shows an example of a system flow of the filtration membrane type water treatment device of the present invention.

[Explanation of symbols]

1 Filtration membrane type water treatment equipment 2 dedicated stand 3 operation panel 4 Raw water pressure pump 5 pre-filter 6 Water softener 7 Activated carbon filter 8 check filters 9 High pressure pump 10 Filter membrane module 11 Filtrate automatic valve 14 Automatic flush water discharge valve 13 Storage tank 14 Backwash pump 15 Backwash automatic valve 16 Supply pump

Claims (2)

(57) [Claims] 1. A filter including a pump and a filtration membrane module.
It is a permeation membrane type water treatment device, except for the pump.
A filtration membrane-type water treatment device, characterized in that a dedicated frame incorporating a part of the connection pipes of the module and the filtration membrane module is installed, and the dedicated frame can be moved outside the device. 2. A filtration membrane type water treatment device, wherein the filtration membrane module according to claim 1 is either a reverse osmosis membrane module or an ultrafiltration membrane module.