CN106966470B - EDI module belt cleaning device - Google Patents
EDI module belt cleaning device Download PDFInfo
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- CN106966470B CN106966470B CN201710368059.XA CN201710368059A CN106966470B CN 106966470 B CN106966470 B CN 106966470B CN 201710368059 A CN201710368059 A CN 201710368059A CN 106966470 B CN106966470 B CN 106966470B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
- C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
- B01D61/46—Apparatus therefor
- B01D61/48—Apparatus therefor having one or more compartments filled with ion-exchange material, e.g. electrodeionisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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Abstract
The invention discloses an EDI module cleaning device which comprises a plurality of module groups arranged in parallel, wherein the module groups are provided with flushing water outlets, fresh water outlet branch pipes of each module group are provided with fresh water outlet valves, fresh water inlet branch pipes of each module group are provided with fresh water inlet valves, concentrated water outlet branch pipes of each module group are provided with concentrated water outlet valves, and fresh water inlet branch pipes of each module group are provided with fresh water inlet valves. When the fresh water room and the concentrated water room of module group need be washd, flow direction through wasing water is opposite with the flow direction of module group during operation, and then realizes carrying out the backwash to fresh water room and concentrated water room, and then in time with fresh water room and concentrated water room sanitization, consequently, the EDI module belt cleaning device that this application provided has improved the cleaning efficiency of EDI module effectively.
Description
Technical Field
The invention relates to the technical field of power plant water treatment, in particular to an EDI module cleaning device.
Background
EDI (Electro-deionization) devices are devices made of pure water combining ion exchange technology, ion exchange membrane technology, and ion electromigration technology. The EDI device comprises a module group which is arranged in parallel, wherein each module group is composed of 6 EDI modules. The following description will be given taking an example in which the EDI apparatus includes three module groups.
The EDI device comprises three groups of modules which are arranged in parallel, namely a first module, a second module and a third module. The first module, the second module and the third module are respectively connected with the fresh water inlet header pipe through a first fresh water inlet branch pipe, a second fresh water inlet branch pipe and a third fresh water inlet branch pipe which are arranged in parallel, and the first fresh water inlet branch pipe, the second fresh water inlet branch pipe and the third fresh water inlet branch pipe are respectively provided with a first fresh water inlet valve, a second fresh water inlet valve and a third fresh water inlet valve. The first module, the second module and the third module are respectively connected with a fresh water outlet header pipe through a first fresh water outlet branch pipe, a second fresh water outlet branch pipe and a third fresh water outlet branch pipe which are arranged in parallel, and a fresh water total outlet valve is arranged on the fresh water outlet header pipe.
The first module, the second module and the third module are respectively connected with a concentrated water inlet header pipe through a first concentrated water inlet branch pipe, a second concentrated water inlet branch pipe and a third concentrated water inlet branch pipe which are arranged in parallel, and the first concentrated water inlet branch pipe, the second concentrated water inlet branch pipe and the third concentrated water inlet branch pipe are respectively provided with a first concentrated water inlet valve, a second concentrated water inlet valve and a third concentrated water inlet valve. The first module, the second module and the third module are respectively connected with a concentrated water outlet header pipe through a first concentrated water outlet branch pipe, a second concentrated water outlet branch pipe and a third concentrated water outlet branch pipe which are arranged in parallel, and a concentrated water outlet header pipe is provided with a concentrated water outlet valve.
When the EDI module is washed to needs, when wasing the fresh water room, insert fresh water inlet house steward with the scavenge pipe, in the module flows into through above-mentioned three fresh water inlet branch pipe, flow out through fresh water outlet house steward at last. When the concentrated water chamber is cleaned, concentrated water enters the three concentrated water inlet branch pipes through the concentrated water inlet main pipe and then flows into the module, and finally is discharged through the concentrated water outlet.
However, when the EDI module carried out fresh water room washing and dense water room washing, the flow direction of water was the same with the flow direction of EDI module during operation water for impurity in fresh water room and the dense water room need the longer time to wash just can accomplish, leads to the cleaning efficiency of EDI module to be lower.
Therefore, how to improve the cleaning efficiency of the EDI module is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide an EDI module cleaning device to improve the cleaning efficiency of an EDI module.
In order to achieve the purpose, the invention provides an EDI module cleaning device which comprises a plurality of groups of module groups arranged in parallel, wherein the module groups are provided with flushing water outlets, a fresh water outlet valve is arranged on a fresh water outlet branch pipe of each module group, a fresh water inlet valve is arranged on a fresh water inlet branch pipe of each module group, a concentrated water outlet valve is arranged on a concentrated water outlet branch pipe of each module group, and a fresh water inlet valve is arranged on a fresh water inlet branch pipe of each module group.
Preferably, the module groups are three groups, which are respectively a first module, a second module and a third module, the fresh water inlet branch pipes are divided into a first fresh water inlet branch pipe, a second fresh water inlet branch pipe and a third fresh water inlet branch pipe, the fresh water outlet branch pipes are divided into a first fresh water outlet branch pipe, a second fresh water outlet branch pipe and a third fresh water outlet branch pipe, the concentrated water outlet branch pipes are divided into a first concentrated water outlet branch pipe, a second concentrated water outlet branch pipe and a third concentrated water outlet branch pipe, the concentrated water inlet branch pipes are divided into a first concentrated water inlet branch pipe, a second concentrated water inlet branch pipe and a third concentrated water inlet branch pipe, the fresh water inlet valves are divided into a first fresh water inlet valve, a second fresh water inlet valve and a third fresh water inlet valve, and the concentrated water inlet valves are divided into a first concentrated water inlet valve, a second concentrated water inlet valve and a third concentrated water inlet valve;
the first module, the second module and the third module are respectively connected with a fresh water inlet header pipe through the first fresh water inlet branch pipe, the second fresh water inlet branch pipe and the third fresh water inlet branch pipe which are arranged in parallel, and the first fresh water inlet branch pipe, the second fresh water inlet branch pipe and the third fresh water inlet branch pipe are respectively provided with a first fresh water inlet valve, a second fresh water inlet valve and a third fresh water inlet valve; the first module, the second module and the third module are respectively connected with a fresh water outlet header pipe through a first fresh water outlet branch pipe, a second fresh water outlet branch pipe and a third fresh water outlet branch pipe which are arranged in parallel, a fresh water total outlet valve is arranged on the fresh water outlet header pipe, the fresh water outlet valve comprises a first fresh water outlet valve, a second fresh water outlet valve and a third fresh water outlet valve, and the first fresh water outlet valve, the second fresh water outlet valve and the third fresh water outlet valve are respectively arranged on the first fresh water outlet branch pipe, the second fresh water outlet branch pipe and the third fresh water outlet branch pipe;
the first module, the second module and the third module are respectively connected with a concentrated water inlet header pipe through a first concentrated water inlet branch pipe, a second concentrated water inlet branch pipe and a third concentrated water inlet branch pipe which are arranged in parallel, a concentrated water main inlet valve is arranged on the concentrated water inlet header pipe, and the first concentrated water inlet branch pipe, the second concentrated water inlet branch pipe and the third concentrated water inlet branch pipe are respectively provided with a first concentrated water inlet valve, a second concentrated water inlet valve and a third concentrated water inlet valve; the first module the second module with the third module is connected with dense water outlet manifold respectively through parallel arrangement's first dense water outlet branch pipe, second dense water outlet branch pipe and third dense water outlet branch pipe, the last dense water outlet valve that is equipped with of dense water outlet manifold, dense water outlet valve includes first dense water outlet valve, second dense water outlet valve and third dense water outlet valve, first dense water outlet valve the second dense water outlet valve with third dense water outlet valve sets up respectively first dense water outlet branch pipe second dense water outlet branch pipe with third dense water outlet branch pipe.
Preferably, the fresh water outlet valve is a butterfly valve.
Preferably, the concentrated water outlet valve is a butterfly valve.
Preferably, the flushing water pressure is 0.15MPa-0.25 MPa.
Preferably, the flushing water pressure is 0.20 MPa.
Preferably, the system further comprises a valve controller for controlling the start and stop of the fresh water outlet valve and/or the concentrated water outlet valve.
Preferably, the fresh water rinsing time is 4 minutes to 6 minutes.
Preferably, the fresh water flush time is 5 minutes.
Preferably, the concentrated water washing time is 5 minutes to 10 minutes.
In the above technical scheme, the EDI module cleaning device provided by the invention comprises a plurality of module groups arranged in parallel, wherein a flushing outlet is arranged on each module group, a fresh water outlet valve is arranged on a fresh water outlet branch pipe of each module group, a fresh water inlet valve is arranged on a fresh water inlet branch pipe of each module group, a concentrated water outlet valve is arranged on a concentrated water outlet branch pipe of each module group, and a fresh water inlet valve is arranged on a fresh water inlet branch pipe of each module group. When the fresh water chamber on one module group needs to be flushed, the fresh water inlet valve at the position is closed, the cleaning water reversely flows into the module group to be cleaned through the fresh water outlet valves of the other module groups, and the cleaned water is discharged through the flushing water outlet. When the concentrated water chamber needs to be cleaned, the concentrated water inlet valve at the position is closed, concentrated water reversely flows into the module group to be cleaned through the concentrated water outlet valve of the concentrated water outlet branch pipe through other module groups, and the cleaned water is discharged through the flushing water outlet.
Can know through the above-mentioned description, in the EDI module belt cleaning device that this application provided, when the fresh water room and the dense hydroecium of module group need be washd, flow direction through wasing water is opposite with the flow direction of module group during operation, and then realizes carrying out the backwash to fresh water room and dense hydroecium, and then in time with fresh water room and dense hydroecium sanitization, consequently, the EDI module belt cleaning device that this application provided has improved the cleaning efficiency of EDI module effectively.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an EDI module cleaning apparatus according to an embodiment of the present invention.
Wherein in FIG. 1: 1-concentrated water total inlet valve, 2-first fresh water inlet valve, 3-second fresh water inlet valve, 4-third fresh water inlet valve, 5-first concentrated water outlet valve, 6-second concentrated water outlet valve, 7-third concentrated water outlet valve, 8-first fresh water outlet valve, 9-second fresh water outlet valve, 10-third fresh water outlet valve, 11-first concentrated water inlet valve, 12-second concentrated water inlet valve, 13-third concentrated water inlet valve, 14-cleaning inlet valve, 15-first fresh water inlet branch pipe, 16-second fresh water inlet branch pipe, 17-third fresh water inlet branch pipe, 18-chemical cleaning pipe, 19-concentrated water inlet header pipe, 20-first fresh water outlet branch pipe, 21-second fresh water outlet branch pipe, 22-a third fresh water outlet branch pipe, 23-a fresh water outlet header pipe, 24-a first concentrated water inlet branch pipe, 25-a second concentrated water inlet branch pipe, 26-a third concentrated water inlet branch pipe, 27-a first concentrated water outlet branch pipe, 28-a second concentrated water outlet branch pipe, 29-a third concentrated water outlet branch pipe, 30-a fresh water total outlet valve, 31-a first module, 32-a second module and 33-a third module.
Detailed Description
The core of the invention is to provide the EDI module cleaning device to improve the cleaning efficiency of the EDI module.
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1, in an embodiment, an EDI module cleaning apparatus according to an embodiment of the present invention includes a plurality of module groups arranged in parallel, wherein a flushing drain port is disposed on each module group, a fresh water outlet valve is disposed on a fresh water outlet branch pipe of each module group, a fresh water inlet valve is disposed on a fresh water inlet branch pipe of each module group, a concentrated water outlet valve is disposed on a concentrated water outlet branch pipe of each module group, and a fresh water inlet valve is disposed on a fresh water inlet branch pipe of each module group. In order to prolong the service life of the valve, the fresh water outlet valve is preferably a butterfly valve. More preferably, the concentrated water outlet valve is a butterfly valve. In particular, the fresh water outlet valve and the concentrated water outlet valve can be manually controlled valves.
In order to improve the working efficiency, the flushing water pressure is preferably 0.15MPa to 0.25 MPa. More preferably, the flushing water pressure is 0.20MPa, wherein the flushing water pressure can be controlled by a manual butterfly valve on the related pipeline.
Furthermore, the EDI module cleaning device also comprises a valve controller for controlling the fresh water outlet valve and/or the concentrated water outlet valve to start and stop, and the start and stop of the valve are controlled by the control system, so that the labor intensity of workers is effectively reduced, and the automation level is improved.
Furthermore, the fresh water flushing time is 4 minutes to 6 minutes. Preferably, the fresh water flush time is 5 minutes.
Preferably, the time for flushing the concentrated water is 5 minutes to 10 minutes. Of course, in the actual cleaning process, the staff can automatically control the cleaning time according to the water sample flowing out of the flushing water outlet.
When the fresh water chamber on one module group needs to be flushed, the fresh water inlet valve at the position is closed, the cleaning water reversely flows into the module group to be cleaned through the fresh water outlet valves of the other module groups, and the cleaned water is discharged through the flushing water outlet. When the concentrated water chamber needs to be cleaned, the concentrated water inlet valve at the position is closed, concentrated water reversely flows into the module group to be cleaned through the concentrated water outlet valve of the concentrated water outlet branch pipe through other module groups, and the cleaned water is discharged through the flushing water outlet.
Preferably, the module groups are three groups, which are respectively a first module 31, a second module 32 and a third module 33, the fresh water inlet branch pipes are divided into a first fresh water inlet branch pipe 15, a second fresh water inlet branch pipe 16 and a third fresh water inlet branch pipe 17, the fresh water outlet branch pipes are divided into a first fresh water outlet branch pipe 20, a second fresh water outlet branch pipe 21 and a third fresh water outlet branch pipe 22, the concentrated water outlet branch pipes are divided into a first concentrated water outlet branch pipe 27, a second concentrated water outlet branch pipe 28 and a third concentrated water outlet branch pipe 29, the concentrated water inlet branch pipe is divided into a first concentrated water inlet branch pipe 24, a second concentrated water inlet branch pipe 25 and a third concentrated water inlet branch pipe 26, the fresh water inlet valve is divided into a first fresh water inlet valve 2, a second fresh water inlet valve 3 and a third fresh water inlet valve 4, and the concentrated water inlet valve is divided into a first concentrated water inlet valve 11, a second concentrated water inlet valve 12 and a third concentrated water inlet valve 13.
The first module 31, the second module 32 and the third module 33 are respectively connected with the fresh water inlet header pipe through a first fresh water inlet branch pipe 15, a second fresh water inlet branch pipe 16 and a third fresh water inlet branch pipe 17 which are arranged in parallel, and the first fresh water inlet branch pipe 15, the second fresh water inlet branch pipe 16 and the third fresh water inlet branch pipe 17 are respectively provided with a first fresh water inlet valve 2, a second fresh water inlet valve 3 and a third fresh water inlet valve 4.
The first module 31, the second module 32 and the third module 33 are respectively connected with the fresh water outlet header pipe 23 through a first fresh water outlet branch pipe 20, a second fresh water outlet branch pipe 21 and a third fresh water outlet branch pipe 22 which are arranged in parallel, a fresh water total outlet valve 30 is arranged on the fresh water outlet header pipe 23, the fresh water outlet valve comprises a first fresh water outlet valve 8, a second fresh water outlet valve 9 and a third fresh water outlet valve 10, and the first fresh water outlet valve 8, the second fresh water outlet valve 9 and the third fresh water outlet valve 10 are respectively arranged on the first fresh water outlet branch pipe 20, the second fresh water outlet branch pipe 21 and the third fresh water outlet branch pipe 22.
The first module 31, the second module 32 and the third module 33 are respectively connected with a concentrated water inlet header pipe 19 through a first concentrated water inlet branch pipe 24, a second concentrated water inlet branch pipe 25 and a third concentrated water inlet branch pipe 26 which are arranged in parallel, a concentrated water main inlet valve 1 is arranged on the concentrated water inlet header pipe 19, and the first concentrated water inlet branch pipe 24, the second concentrated water inlet branch pipe 25 and the third concentrated water inlet branch pipe 26 are respectively provided with a first concentrated water inlet valve 11, a second concentrated water inlet valve 12 and a third concentrated water inlet valve 13.
The first module 31, the second module 32 and the third module 33 are respectively connected with a concentrated water outlet header pipe through a first concentrated water outlet branch pipe 27, a second concentrated water outlet branch pipe 28 and a third concentrated water outlet branch pipe 29 which are arranged in parallel, a concentrated water total outlet valve is arranged on the concentrated water outlet header pipe, the concentrated water outlet valve comprises a first concentrated water outlet valve 5, a second concentrated water outlet valve 6 and a third concentrated water outlet valve 7, and the first concentrated water outlet valve 5, the second concentrated water outlet valve 6 and the third concentrated water outlet valve 7 are respectively arranged on the first concentrated water outlet branch pipe 27, the second concentrated water outlet branch pipe 28 and the third concentrated water outlet branch pipe 29. Wherein, a loose joint can be additionally arranged at the position of entering the EDI water production system, and the loose joint is disassembled to be used as a flushing water outlet during the countercurrent flushing.
Specifically, during operation, when the first module 31 fresh water chamber needs to be cleaned:
closing the first fresh water inlet valve 2 and the third fresh water inlet valve 4, and opening the second fresh water inlet valve 3;
opening a first fresh water outlet valve 8 and a second fresh water outlet valve 9, and closing a third fresh water outlet valve 10;
closing the fresh water main outlet valve 30;
and (3) opening a fresh water inlet main pipe, opening a traditional chemical cleaning inlet valve 14, enabling cleaning liquid to enter the fresh water inlet main pipe, then sequentially passing through a second fresh water inlet branch pipe 16, a second module 32, a second fresh water outlet branch pipe 21, a fresh water outlet main pipe 23, a first fresh water outlet branch pipe 20 and a first module 31, finally discharging through a flushing water outlet, after flushing for a certain time, taking a back flushing water sample by using a beaker to visually clear, wherein the conductance is less than 5us/cm, and then backwashing the fresh water chamber is completed. Namely, the fresh water of the second module 32 is used as the water source for backwashing the fresh water chamber of the first module 31.
When the first module 31 concentrate chamber needs to be cleaned:
closing the first fresh water inlet valve 2, the second fresh water inlet valve 3 and the third fresh water inlet valve 4;
opening a concentrated water main inlet valve 1;
closing the first concentrated water inlet valve 11 and the third concentrated water inlet valve 13, and opening the second concentrated water inlet valve 12;
closing a concentrated water main outlet valve;
opening a first concentrated water outlet valve 5 and a second concentrated water outlet valve 6; and (3) utilizing the concentrated water of the second module 32 as a water source of the concentrated water chamber of the first backwashing module 31, after the washing moving time, taking a backwashing water sample by using a beaker to visually clear, wherein the conductance is less than 20us/cm, and the backwashing of the concentrated water chamber is finished.
Wherein, the steps of backwashing the fresh water chamber and the concentrated water chamber of the second module 32 and the third module 33 are the same as those of backwashing the first module 31, which is not described in detail in the application.
Can know through the above-mentioned description, in the EDI module belt cleaning device that this application embodiment provided, when the fresh water room and the dense hydroecium of module group need be cleaned, flow direction through wasing water is opposite with the flow direction of module group during operation, and then realizes carrying out the backwash to fresh water room and dense hydroecium, and then in time with fresh water room and dense hydroecium sanitization, consequently, the EDI module belt cleaning device that this application provided has improved the cleaning efficiency of EDI module effectively.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The EDI module cleaning device comprises a plurality of module groups arranged in parallel, and is characterized in that a flushing water outlet is arranged on each module group, a fresh water outlet valve is arranged on a fresh water outlet branch pipe of each module group, a fresh water inlet valve is arranged on a fresh water inlet branch pipe of each module group, a concentrated water outlet valve is arranged on a concentrated water outlet branch pipe of each module group, and a concentrated water inlet valve is arranged on a concentrated water inlet branch pipe of each module group;
the module group is three groups, be first module (31) respectively, second module (32) and third module (33), the fresh water import branch pipe divide into first fresh water import branch pipe (15), second fresh water import branch pipe (16) and third fresh water import branch pipe (17), the fresh water export branch pipe divide into first fresh water export branch pipe (20), second fresh water export branch pipe (21) and third fresh water export branch pipe (22), the dense water export branch pipe divide into first dense water export branch pipe (27), second dense water export branch pipe (28) and third dense water export branch pipe (29), the dense water import branch pipe divide into first dense water import branch pipe (24), second dense water import branch pipe (25) and third dense water import branch pipe (26), the fresh water import valve divide into first fresh water import valve (2), second fresh water import valve (3) and third fresh water import valve (4), the dense water import valve divide into first dense water import valve (11), A second concentrated water inlet valve (12) and a third concentrated water inlet valve (13);
the first module (31), the second module (32) and the third module (33) are respectively connected with a fresh water inlet main pipe through the first fresh water inlet branch pipe (15), the second fresh water inlet branch pipe (16) and the third fresh water inlet branch pipe (17) which are arranged in parallel, and the first fresh water inlet branch pipe (15), the second fresh water inlet branch pipe (16) and the third fresh water inlet branch pipe (17) are respectively provided with the first fresh water inlet valve (2), the second fresh water inlet valve (3) and the third fresh water inlet valve (4); the first module (31), the second module (32) and the third module (33) are respectively connected with a fresh water outlet header pipe (23) through the first fresh water outlet branch pipe (20), the second fresh water outlet branch pipe (21) and the third fresh water outlet branch pipe (22) which are arranged in parallel, a fresh water total outlet valve (30) is arranged on the fresh water outlet header pipe (23), the fresh water outlet valve comprises a first fresh water outlet valve (8), a second fresh water outlet valve (9) and a third fresh water outlet valve (10), and the first fresh water outlet valve (8), the second fresh water outlet valve (9) and the third fresh water outlet valve (10) are respectively arranged on the first fresh water outlet branch pipe (20), the second fresh water outlet branch pipe (21) and the third fresh water outlet branch pipe (22);
the first module (31), the second module (32) and the third module (33) are respectively connected with a concentrated water inlet header pipe (19) through the first concentrated water inlet branch pipe (24), the second concentrated water inlet branch pipe (25) and the third concentrated water inlet branch pipe (26) which are arranged in parallel, a concentrated water main inlet valve (1) is arranged on the concentrated water inlet header pipe (19), and the first concentrated water inlet branch pipe (24), the second concentrated water inlet branch pipe (25) and the third concentrated water inlet branch pipe (26) are respectively provided with the first concentrated water inlet valve (11), the second concentrated water inlet valve (12) and the third concentrated water inlet valve (13); the first module (31), the second module (32) and the third module (33) are respectively connected with a concentrated water outlet header pipe through the first concentrated water outlet branch pipe (27), the second concentrated water outlet branch pipe (28) and the third concentrated water outlet branch pipe (29) which are arranged in parallel, a concentrated water main outlet valve is arranged on the concentrated water outlet header pipe, the concentrated water outlet valve comprises a first concentrated water outlet valve (5), a second concentrated water outlet valve (6) and a third concentrated water outlet valve (7), and the first concentrated water outlet valve (5), the second concentrated water outlet valve (6) and the third concentrated water outlet valve (7) are respectively arranged on the first concentrated water outlet branch pipe (27), the second concentrated water outlet branch pipe (28) and the third concentrated water outlet branch pipe (29);
when the fresh water chamber on one module group needs to be flushed, the fresh water inlet valve at the position is closed, the cleaning water reversely flows into the module group to be cleaned through the fresh water outlet valves of the other module groups, and the cleaned water is discharged through the flushing water outlet; when the concentrated water chamber needs to be cleaned, the concentrated water inlet valve at the position is closed, concentrated water reversely flows into the module group to be cleaned through the concentrated water outlet valve of the concentrated water outlet branch pipe through other module groups, and the cleaned water is discharged through the flushing water outlet.
2. The EDI module cleaning device of claim 1, wherein the fresh water outlet valve is a butterfly valve.
3. The EDI module cleaning device according to claim 1, wherein the concentrate outlet valve is a butterfly valve.
4. The EDI module cleaning device according to claim 1, wherein the flushing water pressure is 0.15MPa to 0.25 MPa.
5. The EDI module cleaning device of claim 4, wherein the flushing water pressure is 0.20 MPa.
6. The EDI module cleaning device according to claim 1, further comprising a valve controller for controlling the start and stop of the fresh water outlet valve and/or the concentrated water outlet valve.
7. The EDI module cleaning apparatus of any of claims 1-6, wherein the fresh water flush time is from 4 minutes to 6 minutes.
8. The EDI module cleaning device according to claim 7, wherein the fresh water flush time is 5 minutes.
9. The EDI module cleaning apparatus of any of claims 1-6, wherein the concentrate flush time is from 5 minutes to 10 minutes.
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| CN201710368059.XA CN106966470B (en) | 2017-05-23 | 2017-05-23 | EDI module belt cleaning device |
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| CN201710368059.XA CN106966470B (en) | 2017-05-23 | 2017-05-23 | EDI module belt cleaning device |
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| CN106966470B true CN106966470B (en) | 2020-12-04 |
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