CN110776065A

CN110776065A - Water treatment device

Info

Publication number: CN110776065A
Application number: CN201911016890.4A
Authority: CN
Inventors: 赵晓丹; 刘斌; 张梦灵; 李新亮; 寻红敏; 张中亮
Original assignee: Huadian Water Membrane Separation Technology (tianjin) Co Ltd
Current assignee: Huadian Water Membrane Separation Technology (tianjin) Co Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-02-11

Abstract

The application provides a water treatment device, comprising a housing; the two ends of the shell are respectively provided with a water inlet and a water outlet, and a hollow cathode column and a central anode column are arranged inside the shell; the central anode column is positioned inside the hollow cathode column; a hollow fiber ultrafiltration membrane is also arranged inside the hollow cathode column; one end of the hollow fiber ultrafiltration membrane is connected with the water outlet. According to the technical scheme provided by the embodiment of the application, the hollow cathode column and the central anode column form an electrostatic field, anions and cations in water can migrate to the electrodes with opposite charges respectively under the traction of electrostatic force, ions in the water are efficiently extracted, the purpose of purifying water quality is realized, the stability of the water quality and quality of the produced water of the ultrafiltration membrane is ensured, the pollution blockage of pollutants to the ultrafiltration membrane is delayed, and the service life of the ultrafiltration membrane is prolonged.

Description

Water treatment device

Technical Field

The application relates to the technical field of water treatment, in particular to a water treatment device.

Background

The ultrafiltration technology is an important branch in the field of membrane separation, and achieves the purposes of purifying and concentrating the raw material liquid by using transmembrane pressure difference of 0.1-0.5MPa as a driving force and utilizing the physical interception effect of a porous membrane. The ultrafiltration technology can be widely applied to the field of water treatment because of the advantages of normal temperature operation, no phase change process, high separation efficiency, high quality of produced water, simple device and convenient operation, however, the inorganic salt deposition pollution on the surface of the ultrafiltration membrane is one of the key problems for limiting the wide application of the ultrafiltration technology, the occurrence of ultrafiltration membrane pollution can reduce the water production flux of the ultrafiltration membrane, influence the quality of the produced water, greatly reduce the effective service life of the ultrafiltration membrane and increase the water treatment cost.

Disclosure of Invention

In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a water treatment device.

The application provides a water treatment device, comprising a housing; the two ends of the shell are respectively provided with a water inlet and a water outlet, and a hollow cathode column and a central anode column are arranged inside the shell; the central anode column is positioned inside the hollow cathode column; a hollow fiber ultrafiltration membrane is also arranged inside the hollow cathode column; one end of the hollow fiber ultrafiltration membrane is connected with the water outlet.

Furthermore, a detachable water inlet end cover and a detachable water outlet end cover are respectively arranged at two ends of the shell; the water inlet is positioned on the water inlet end cover; the water outlet is positioned on the water outlet end cover.

Further, the sewage draining device also comprises a sewage draining outlet; the drain outlet is positioned on the water outlet end cover and is used for discharging the waste water generated during the internal cleaning.

Further, the device also comprises a mounting plate; the mounting plate is positioned between the water inlet end cover and the shell; the hollow cathode column, the central anode column and the hollow fiber ultrafiltration membrane are all detachably arranged on the mounting plate; the mounting plate is also provided with a through flow passage hole.

Furthermore, the mounting plate is provided with corresponding electrode connectors corresponding to the hollow cathode column and the central anode column; the electrode contacts are also electrically connected to an external power source.

Furthermore, the device also comprises a fixing plate; the fixing plate is positioned between the water outlet end cover and the shell; corresponding butt joint grooves are respectively arranged on the fixing plate corresponding to the hollow cathode column, the central anode column and the hollow fiber ultrafiltration membrane; corresponding through holes are also arranged on the fixing plate corresponding to the hollow fiber ultrafiltration membrane.

The application has the advantages and positive effects that: an electrostatic field is formed by the hollow cathode column and the central anode column, anions and cations in water can migrate to the electrodes with opposite charges under the traction of the electrostatic force, the ions in the water are efficiently extracted, the purpose of purifying water quality is realized, the stability of the water quality and the quality of the produced water of the ultrafiltration membrane is ensured, the pollution and the blockage of pollutants to the ultrafiltration membrane are delayed, and the service life of the ultrafiltration membrane is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of a water treatment device provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a mounting plate of a water treatment device according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a fixing plate of a water treatment device according to an embodiment of the present application.

The text labels in the figures are represented as: 100-a housing; 110-a water inlet; 120-water outlet; 130-a water inlet end cover; 140-water outlet end cover; 150-a sewage draining outlet; 200-hollow cathode column; 210-a mounting plate; 220-a fixed plate; 300-central positive column; 400-hollow fiber ultrafiltration membrane; 500-external power supply.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1, the present embodiment provides a water treatment apparatus, which includes a housing 100, wherein the housing 100 is cylindrical, and two ends of the housing 100 are respectively provided with a water inlet 110 and a water outlet 120; a hollow cathode column 200 and a central anode column 300 are arranged in the casing 100 along the axial direction; the central anode column 300 is located inside the hollow cathode column 200; the hollow cathode column 200 is further provided with a plurality of hollow fiber ultrafiltration membranes 400 inside along the axis direction, and one end of each hollow fiber ultrafiltration membrane 400 is plugged and connected with the water outlet 120.

In a preferred embodiment, the two ends of the housing 100 are respectively provided with a detachable water inlet end cap 130 and a detachable water outlet end cap 140; water inlet 110 is located on water inlet end cap 130; the outlet 120 is located on the outlet end cap 140.

Referring further to fig. 2, in a preferred embodiment, the mounting plate 210 is further included; the mounting plate 210 is positioned between the inlet end cap 130 and the housing 100; the shell 100 is provided with a corresponding mounting groove corresponding to the mounting plate 210, and the mounting plate 210 is tightly pressed in the mounting groove after the water inlet end cover 130 is connected with the shell 100; the hollow cathode column 200, the central anode column 300 and the hollow fiber ultrafiltration membrane 400 are installed on the installation plate 210 in a plugging manner; the mounting plate 210 is further provided with a flow passage hole therethrough to ensure that the water inlet 110 is communicated with the inside of the housing 100.

In a preferred embodiment, the mounting plate 210 is provided with corresponding electrode connectors corresponding to the hollow cathode column 200 and the central anode column 300, the exterior of the casing 100 is provided with an external power source 500, the hollow cathode column 200 is connected to the negative electrode of the external power source 500 through the corresponding electrode connectors, and the central anode column 300 is connected to the positive electrode of the external power source 500 through the corresponding electrode connectors.

Referring to fig. 3, in a preferred embodiment, the water outlet cover further includes a fixing plate 220, the fixing plate 220 is located between the water outlet cover 140 and the housing 100, the housing 100 is also provided with a corresponding mounting groove corresponding to the fixing plate 220, and a corresponding sealing ring is further provided between the fixing plate 220 and the housing 100; the fixing plate 220 is provided with corresponding butt-joint grooves corresponding to the hollow cathode column 200, the central anode column 300 and the hollow fiber ultrafiltration membrane 400, and the fixing plate 220 is provided with corresponding through holes corresponding to the hollow fiber filtration membrane 400 for communicating the inside of the hollow fiber filtration membrane 400 with the water outlet 120.

In a preferred embodiment, a drain outlet 150 is further included; the drain outlet is located on the water outlet end cover 140 for discharging waste water during internal cleaning. When the insoluble salt inorganic salt ions are adsorbed on the surface of the electrode column to reach a saturated state, the hollow fiber ultrafiltration membrane 400 is disassembled, the water outlet 120 is blocked, the hollow cathode column 200 is in short connection with the central anode column 300, the insoluble salt inorganic salt ions adsorbed on the surface of the electrode return to the raw material liquid again under the action of no electric field force, and the insoluble salt inorganic salt ions are discharged through the sewage outlet 150 to finish internal cleaning.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.

Claims

1. A water treatment device, characterized by comprising a housing (100); a water inlet (110) and a water outlet (120) are respectively arranged at two ends of the shell (100), and a hollow cathode column (200) and a central anode column (300) are arranged inside the shell; the central anode column (300) is located inside the hollow cathode column (200); a hollow fiber ultrafiltration membrane (400) is also arranged inside the hollow cathode column (200); one end of the hollow fiber ultrafiltration membrane (400) is connected with the water outlet (120).

2. The water treatment device according to claim 1, wherein both ends of the shell (100) are respectively provided with a detachable water inlet end cover (130) and a detachable water outlet end cover (140); the water inlet (110) is positioned on the water inlet end cover (130); the water outlet (120) is positioned on the water outlet end cover (140).

3. A water treatment device according to claim 2, further comprising a sewage drain (150); the sewage draining outlet (150) is positioned on the water outlet end cover (140) and is used for draining the waste water generated in the process of cleaning the interior.

4. The water treatment device of claim 2, further comprising a mounting plate (210); the mounting plate (210) is positioned between the water inlet end cover (130) and the shell (100); the hollow cathode column (200), the central anode column (300) and the hollow fiber ultrafiltration membrane (400) are detachably arranged on the mounting plate (210); the mounting plate (210) is also provided with a through flow passage hole.

5. A water treatment device according to claim 4, characterized in that the mounting plate (210) is provided with respective electrode connections corresponding to the hollow cathode column (200) and the central anode column (300); the electrode contact is also electrically connected to an external power source (500).

6. The water treatment device of claim 2, further comprising a fixing plate (220); the fixing plate (220) is positioned between the water outlet end cover (140) and the shell (100); corresponding butt joint grooves are respectively arranged on the fixing plate (220) corresponding to the hollow cathode column (200), the central anode column (300) and the hollow fiber ultrafiltration membrane (400); and corresponding through holes are also formed in the fixing plate (220) corresponding to the hollow fiber ultrafiltration membrane (400).