JPH0595635U - Cleaning device using sponge balls - Google Patents

Abstract

(57) [Abstract] [Purpose] To simplify the mechanism of the part where the sponge is inserted in the device for cleaning using a membrane separation device and the sponge, to facilitate the maintenance and to reduce the maintenance space. In a cleaning device using a sponge ball for cleaning by inserting a sponge ball together with a cleaning liquid into a device to which a cleaning liquid is selectively supplied, a processing liquid passage 2c and a cleaning liquid passage 2d intersect each other. The switching valve 2 having the rotatable cylinder 2b provided therein was provided, and the sponge ball 1 was housed in the cleaning liquid passage 2d.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cleaning device using a sponge ball in a membrane separation device or the like.

[0002]

[Prior Art]

 Conventionally, sponge ball cleaning is often performed in a cleaning device when a tubular module is used in a membrane separation device. In this case, as shown in FIG. 3, the cylinder 02 for feeding the stock solution 04 to the membrane separation device is axially moved by the handle 03 as shown by an arrow 08, so that the cylinder 02 can be moved. A washing liquid passage 06 is provided separately from the passage of the stock solution, and at the time of washing, the washing liquid 05 is sent to the membrane separation device through the passage 06 for washing. In this case, the sponge balls 01 are stored in the cleaning liquid passage 06, and the sponge balls 01 are inserted into the membrane separation device together with the cleaning liquid 05 for cleaning. Reference numeral 07 denotes a net for holding the sponge ball 01 provided at the upstream end of the cleaning liquid passage 06.

[0003]

[Problems to be solved by the device]

 In the case of a cleaning device that performs sponge ball cleaning, leaving the sponge ball inside the device causes an increase in pressure loss in the piping, so the sponge ball needs to be taken in and out except when cleaning. Therefore, in automation, a cylinder that moves in the axial direction and a complicated link mechanism were required.

The present invention is intended to provide a cleaning device capable of reliably cleaning with a sponge ball with a simple mechanism.

[0005]

[Means for Solving the Problems]

 The present invention is a cleaning device using a sponge ball for cleaning by inserting a sponge ball together with the cleaning liquid into a device to which the processing liquid and the cleaning liquid are selectively supplied. The rotatable switching valve provided in the above was provided, and the sponge ball was stored in the passage for the cleaning liquid.

[0006]

[Action]

 In the present invention, the cleaning liquid flows into the cleaning device by rotating the switching valve that stores the sponge balls in the cleaning liquid passage, and the sponge balls together with the cleaning liquid are also inserted into the cleaning device. Cleaning is performed. The switching valve switches the processing liquid and the cleaning liquid by the rotary motion as described above, so that the mechanism is simple, and the maintenance is easy and the maintenance space is small, and it can be easily automated. Is.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. This example relates to a cleaning device for a membrane separation device using a tubular module.

In the membrane separation apparatus according to the present embodiment, as shown in FIG. 2, a stock solution as a treatment solution is introduced into a membrane module 20 via a three-way valve 13 and a switching valve 2 described later, and the membrane module 20 is removed. The permeated membrane-permeated liquid 4a is discharged from the membrane module 20, and the remaining undiluted solution is discharged from the membrane module 20 via a catcher 14 and a three-way valve 13a described later. An arrow 4 indicates the flow of the stock solution, and four switching valves 2 and four catchers 14 are provided so that the stock solution flows in parallel in the membrane module 20.

In FIG. 2, reference numeral 15 is a cleaning tank containing a cleaning liquid of fresh water or a dedicated detergent, 16 is a cleaning pump for discharging the cleaning liquid from the cleaning tank 15, and a line 17 on the discharge side of the cleaning pump 16 includes: The valves SV ₁ and SV ₂ and the valves SV ₂ and SV ₄ are connected in parallel, the line 19a connected between the valves SV ₂ and SV ₄ is connected to the three-way valve 13, and the valves SV ₁ and SV are connected. _{The line} 19b connected to the ₃ is connected to the three-way valve 13a. The downstream sides of the valves SV ₃ and SV ₄ are connected to a line 18 leading to the cleaning tank 15.

In the present embodiment, when performing forward flow cleaning, the three-way valves 13 and 13a cut off the connection between the stock solution side and the membrane module, and connect the cleaning solution side lines 19a and 19b to the membrane module 20. . Then, the valves SV ₁ and SV ₄ are closed, the valves SV ₂ and SV ₃ are opened, and the cleaning pump 16 is started. As a result, the cleaning liquid in the cleaning tank 15 enters the membrane module 20 from the cleaning pump 16 through the line 17, the valve SV2, the line 19a, the three-way valve 13 and the switching valve 2 as shown by the arrow 11 in FIG. Cleaning is performed. Then, the cleaning liquid returns to the cleaning tank 15 through the catcher 14, the three-way valve 13a, the line 19b, the valve SV ₃ and the line 18.

On the other hand, when performing backwashing, the three-way valves 13 and 13a are set to the same positions as in the above-described forward washing, the valves SV ₁ and SV ₄ are opened, and the valves SV ₂ and SV ₃ are closed. As shown by the arrow 12 in FIG. 2, the cleaning liquid in the cleaning tank 13 enters the membrane module 20 via the cleaning pump 16 through the line 17, valve SV ₁ , line 19b, three-way valve 13a, and catcher 14, and the above-described forward flow cleaning is performed. Cleaning is performed by flowing in the opposite direction in the membrane module 20 as compared with time. Then, the cleaning liquid returns to the cleaning tank 15 through the switching valve 2, the three-way valve 13, the line 19a, the valve SV ₄ and the line 18.

As shown in FIG. 1, the switching valve 2 includes a cylindrical seat 2 a and a cylindrical cylinder 2 b housed in the seat 2 a and rotatable in the seat 2 around an axis. The cylinder 2b is provided with a stock solution passage 2c and a cleaning liquid passage 2d that intersect each other at right angles so as to penetrate through the cylinder 2b. A net 7 is provided at the inlet end of the cleaning liquid passage 2d. The sponge ball 1 is housed in the passage 2d. Reference numeral 3 is a handle provided at the end of the cylinder 2b. Further, a line 8 connected to the three-way valve 13 and a line 9 connected to the membrane module 20 are opened at opposite positions of the seat 2b, and the cylinder 2b is opened by the handle 3 as shown in FIG. ), By rotating about its axis, either of the passages 2a, 2b can connect the lines 8, 9 with each other.

The catcher 14 holds the sponge ball 1 in the catcher 14 when the sponge ball 1 in the cleaning liquid passage 2d of the switching valve 2 moves into the catcher 14 together with the cleaning liquid as described later. In order to be able to do so, for example, as shown in FIG. 2, it is configured to have a rhombic cross section in the flowing direction of the cleaning liquid.

In the present embodiment, when the stock solution is supplied to the membrane module 20 for separation, the cylinder 2b is rotated by the handle 3 to connect the lines 8 and 9 through the stock solution passage 2c. Let As a result, the stock solution is supplied to the membrane module 20 as described above through the stock solution passage 2c of the cylinder 2b as shown by an arrow 4 in FIG. 1 (b) to separate the membrane permeate 4a. can get.

When the forward flow cleaning is performed, the handle 3 rotates the cylinder 2b by 90 ° so that the lines 8 and 9 are connected to each other through the cleaning liquid passage 2d of the cylinder 2b. As a result, as described above, the cleaning liquid flowing in the direction of the arrow 11 in FIG. 2 is supplied to the membrane module 20 through the cleaning liquid passage 2d and returned to the cleaning tank 15. At this time, the sponge ball 1 in the passage 2d for the cleaning liquid is inserted into the membrane module 20 together with the cleaning liquid for cleaning, and then moved into the catcher 14 and held in the catcher 14.

On the other hand, when performing backwashing, the cylinder 2b is set to the same position as in the above-mentioned forward washing, and by switching the valves SV _{1 to} SV ₄ as described above, the washing liquid flowing in the direction of arrow 12 in FIG. 14 is supplied to the membrane module 20 and returns to the cleaning tank 15 through the cleaning liquid passage 2d of the switching valve 2. At this time, the sponge ball 1 in the catcher 4 is inserted into the membrane module 20 together with the cleaning liquid to perform cleaning, and then enters the cleaning liquid passage 2d of the switching valve 2 and the downstream net 7 is used to pass the passage 2d. Retained within.

In this way, in this embodiment, by rotating the cylinder 2d of the switching valve 2 with the handle 3, the processing of the undiluted solution by the membrane module 20 and the forward flow cleaning and the reverse flow cleaning can be smoothly performed.

Further, during the forward flow cleaning, the sponge ball 1 in the switching valve 2 is housed in the catcher 14 after cleaning the membrane module 20, and during the subsequent backflow cleaning, the sponge ball 1 in the catcher 14 does not change the membrane module 20. After cleaning the same, it is housed in the switching valve 2 again to prepare for the next forward-flow cleaning. Therefore, it is possible to repeat the forward-flow cleaning and the backward-flow cleaning without recovering the sponge ball after cleaning.

Furthermore, since the switching valve 2 is configured to rotate the cylindrical cylinder 2b around the axis by the handle 3, the stock solution and the cleaning solution can be smoothly switched by a simple mechanism. At the same time, it is easy to maintain and reduce the maintenance space, and it is easy to automate it.

In the above-described embodiment, the catcher 4 having the same structure as the switching valve 2 can be adopted, and the catcher 4 can be rotated to switch the stock solution and the cleaning solution. Further, in the above-described embodiment, the forward flow backwash and the reverse flow backwash are performed, and the sponge ball is reciprocated between the switching valve 2 and the catcher 4, so that the forward flow backwash and the backflow backwash are automatically performed alternately. However, in the case of performing only the back-flow backwash, the sponge balls that have been washed can be taken out from the washing liquid without a catcher.

[0021]

[Effect of the device]

 The present invention switches the treatment liquid and the cleaning liquid by rotating the switching valve, and inserts the sponge ball into the device for cleaning together with the cleaning liquid to perform the cleaning. Cleaning can be performed, maintenance can be facilitated to reduce the maintenance space, and automation can be further facilitated.

[Brief description of drawings]

FIG. 1 shows a portion of a switching valve according to an embodiment of the present invention.
1 (a) is a longitudinal sectional view thereof, and FIG. 1 (b) is A- of FIG. 1 (a).
FIG.

FIG. 2 is a system diagram of the same embodiment.

FIG. 3 shows a sponge ball insertion portion of a conventional cleaning device, FIG. 3 (a) is a longitudinal sectional view thereof, and FIG. 3 (b) is FIG.
It is a BB arrow sectional drawing of (a).

[Explanation of symbols] 1 sponge ball 2 switching valve 2a seat 2b cylinder 2c undiluted solution passage 2d washing liquid passage 3 handle 4 undiluted solution flow direction 5 washing liquid flow direction 11, 12 washing liquid flow direction 13, 13a three-way valve 14 catcher 15 Wash tank 16 Wash pump 20 Membrane module SV ₁ , SV ₂ , SV ₃ , SV ₄ valve

Claims (1)

[Scope of utility model registration request] 1. In a cleaning device using a sponge ball for performing cleaning by inserting a sponge ball together with the cleaning liquid into a device to which the processing liquid and the cleaning liquid are selectively supplied, the processing liquid passage and the cleaning liquid passage intersect each other. A cleaning device using a sponge ball, characterized in that a rotatable switching valve is provided, and a sponge ball is housed in the cleaning liquid passage.