KR0145462B1 - Modules for electrodeionization apparatus - Google Patents

Abstract

The present invention relates to an electric ion removing device module that completely separates and removes ions or salts dissolved in a fluid and processes them in a pure manner. The conventional electrodialysis device or electro ion removing device includes a flat panel type anion exchange membrane and a cation exchange membrane. The back is arranged side by side, forming a box-shaped mouth or equilibrium, and the form is not only complicated, but also when the system is composed, the connection pipe is very complicated. Due to the difficulty of sealing with the fluid, the leakage of fluid occurs frequently due to the pressure of the liquid passing through the device. However, in the present invention, the overall shape is cylindrical with a cylindrical pressure vessel, and the inside of the pressure vessel has a problem. Only one fluid inlet for inflowing fluid is provided to the processing or concentrating unit. To prevent the leakage of fluid by supplying a sieve, and to seal the ion exchange resin by attaching only one side of the ion exchange membrane and to detachable without attaching the ion exchange membrane on the other side. In order to maximize the processing efficiency, the fluid passage is formed in a spiral shape so as to extend the passage length of the fluid to the maximum.

Description

Modules for Electrodeionization Apparatus.

1 is an internal structure side cross-sectional view of the assembled state of the present invention ion removal device.

2 is a plan view of a unit cell spacer in the apparatus of the present invention.

3 is an exploded perspective view of the unit cell spacer of the present invention.

4 is a process fluid flow diagram of the present invention.

5 is a principle diagram of the ion removal device.

6 is another principle of the electro-ion removal apparatus.

7 is a configuration diagram of a conventional electric ion removal device.

8 is a flow chart of the process fluid of FIG.

* Explanation of symbols for the main parts of the drawings

100: module body 101: supply fluid inlet

102: drain outlet 110: top cover

115: 0-ring 120: lower cover

130: positive electrode 131: electrode connection

140: negative electrode 141: electrode connection

150: treatment collection pipe 155: through

156: tightening nut 160: concentrated water collection pipe

170: electrode fluid passage 171: electrode fluid outlet

200: cell spacer 201: euro guide plate

202: fluid flow path 203: inflow liquid inlet

204: concentration water passage 205: treatment water passage

210: concentration section spacer 220: treatment section spacer

230: electrode spacer 240: ion exchange membrane

241: anion exchange membrane 242: cation exchange membrane

250: ion exchange resin

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifying apparatus, and more particularly, to an electric ion removing apparatus module for completely separating and removing ionic components or salts dissolved in a fluid.

Water used in the manufacture of laboratories, power plants and other pharmaceuticals must use pure water that does not contain impurities. In order to separate the components of ions or salts contained in the fluid in order to obtain such pure water, the apparatus generally used includes an electrodialysis apparatus and an ion removal apparatus.

The electrodialysis apparatus is a device for separating ions or salts in a fluid by using an ion exchange membrane and electricity.

The electrodialysis apparatus constitutes a cell pair as a pair of a cation exchange membrane, a spacer, and an anion exchange membrane, and is connected between a plurality of such cell pairs to constitute an electrodialysis apparatus. The operating principle in the conventional electric ion removing device is operated on the principle as shown in FIG. 5 and FIG.

That is, since the anion exchange membrane 41 applied to the ion removal device has a property of passing only anions, and the cation exchange membrane 42 has a property of passing only a cation, the ions in the fluid are separated using such a property. .

FIG. 5 illustrates an ion exchange resin 10 filled in the treated water portion 20 between the anion exchange membrane 41 and the cation exchange membrane 42 inside the center, and the anion exchange membrane 41 and the cation exchange membrane ( The cation exchange membrane 42 and the anion exchange membrane 41 are provided on the outer side of the 42, respectively, to form the concentrating portion 30.

In this way, the direct current is supplied to both sides of the arrayed device to form electrodes on both sides, and when the fluid to be treated flows into the DILUTE SPACER, the anion of the fluid is moved to the anode side. Therefore, it passes through the anion exchange membrane 41 that passes only the anion.

The anion that has passed through the anion exchange membrane 41 is blocked by the cation exchange membrane 42 provided between the + electrode and the concentrated water part (CONCENTRATION).

(SPACER) 30 is concentrated.

In addition, the cations such as the fluid are moved toward the cathode, move through the cation exchange membrane 42 through which only the cations pass, and are concentrated in the concentrated water part 30 on the other side like the anion and mixed by the inflow fluid and discharged into the waste liquid.

In this way, the fluid in the treated water portion (DILUTE SPACER) is deionized to obtain treated pure fluid.

In addition, the ion removal device as shown in FIG. 7 is widely used as a device for increasing efficiency and increasing treatment purity by applying ion exchange resin to the principle of the electrodialysis device.

A plurality of devices as shown in FIG. 5 or 6 are stacked.

That is, the conventional electric ion removing device is configured to fill one cell by filling the ion exchange resin 10 in the DILUTE SPACER 20 between the cation exchange membrane 42 and the anion exchange membrane 41. In addition, the condensed water unit (CONCENTRATION SPACER) 30 is configured by applying a screen spacer (SCREEN SPACER) or a spacer filled with an ion exchange resin to assemble several between the cathode and the anode.

In the principle of operation of the electrodialysis device and the ion removal device, the flow of fluid is similar to that shown in FIG.

Conventional electrodialysis apparatus or ion removal apparatus as described above is a flat panel type anion exchange membrane, cation exchange membrane, etc. are arranged side by side to form a rectangular or square box-like granular form or equilibrium form.

In addition, many components such as inlet fluid inlet, process fluid outlet, washing fluid inlet and outlet of condensate, inlet fluid outlet and outlet of electrode part are the same as ion exchange membrane, spacer, cover plate and support cover. It is very complex to be located in, and the fluid inlet consists of several holes.

Also, a portion used for sealing to occupy a large portion of the spacer and the ion exchange membrane to prevent the mixing and leakage of fluids.

Therefore, the area of the ion exchange membrane used in the actual treatment is small, and the sealing between the fluid and the outside is difficult, and the leakage of the fluid frequently occurs due to the pressure of the liquid passing through the device.

In addition, since the ion removal device attaches a cation exchange membrane and an anion exchange membrane on both sides of the spacer to fill the ion exchange resin and keep the resin in a filled state, the area of the membrane that can be used is reduced because the portion of the ion exchange membrane and the spacer is bonded. If the ion exchange resin needs to be replaced at the time of repair, only the whole part of the CELL PAIR needs to be replaced.

As such, the conventional electrodialysis apparatus and the electric ion control apparatus have a problem in that the connection piping is very complicated when the system is configured as well as the configuration is complicated.

In order to solve the above problems, the present invention has an object of providing an electro-ion remover module that is simple in structure and doubles the effect by the cylindrical shape of the electrodialysis apparatus and the ion removal device.

In order to achieve the above object, the present invention is provided with a separate cylindrical pressure vessel, the overall shape is cylindrical, and has only one fluid inlet for introducing a fluid into the pressure vessel to directly supply the fluid to the processing unit or the concentrating unit. To prevent the leakage of fluid, and adhere only one side of the ion exchange membrane to layer the ion exchange resin and the other side to be removable without attaching the ion exchange membrane so that the ion exchange resin inside the spacer can be replaced if necessary. In order to maximize the processing efficiency, the fluid passage is formed in a spiral shape so as to extend the passage length of the fluid to the maximum.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a side cross-sectional view of the assembled state of the present invention is as follows.

The upper cover 110 and the lower cover 120 are respectively installed on the upper and lower portions of the cylindrical module body 100, and the supply fluid inlet 101 and the drain outlet 102 are respectively provided on one side. .

The positive electrode 130 and the negative electrode 140 are installed inside the upper cover 110 and the lower cover 120, respectively, and the positive electrode 130 and the negative electrode 140 are respectively provided. The electrode connectors 131 and 141 protrude outwards.

A plurality of cell spacers 200 in a circular plate shape are continuously stacked in close contact with each other, and a treatment collection pipe 150 and a concentrated collection pipe 160 are installed side by side at the center.

The treated water collecting pipe 150 and the concentrated water collecting pipe 160 are installed through a plurality of through holes 155 and are connected to the concentrated water passage 204 and the processing fluid passage 205 of each cell spacer 200. Treated water and concentrated water are collected without mixing.

In FIG. 1, the cell spacer 200 constituting the concentrator spacer 210 and the processor spacer 220, which are sequentially stacked in a plurality, is formed in the shape of a disc as shown in FIG. 2.

The cell spacer 200 of FIG. 2 is made of a polymer polymer or a conductive polymer such as polypropylene, and may be made of a body with an ion exchange membrane 240 attached to a material such as an ion exchange membrane.

The central portion of the cell spacer 200 is composed of one concentrated water passage 204, one treated water passage 205, and two electrode fluid passages 170.

Each cell spacer 200 is formed with two or more fluid passages 202 through which a fluid passes by a spiral flow path guide plate 201 having an impermeability.

The flow path guide plate 201 is 5 mm or less, the width of the flow path is 10-30 mm or less, and the length of one flow path is about 500-1500 mm, and the spacer size may be 100 mm or more in diameter, but 200 mm 400 mm It is suitable.

In addition, the spacer thickness is comprised between 0.5 mm and 6 mm.

In more detail describing the present invention the ion removal device of the module body 100 and the upper cover 110 and the lower cover 120 forming a module, the positive electrode 130 and the negative electrode 140 at both ends, respectively; ) Is disposed and the electrode spacers 230 are disposed inward.

An inner portion of the electrode spacer 230 includes a concentrator spacer 210, a processor spacer 220, an ion exchange membrane 240, and an ion exchange resin 250.

That is, an ion exchange membrane 240 is attached to one surface of the processing unit spacer 220 and a mixed resin 250 in which a cation exchange resin or an anion exchange resin or a cation exchange resin and an anion exchange resin is mixed inside the processing unit spacer 220. Fill it up.

A lower portion of the condenser spacer 210 (that is, an upper portion and a connection portion of the treatment spacer 220) attaches an ion exchange membrane different from the ion exchange membrane attached to the treatment spacer 220.

That is, when the cation exchange membrane is attached to the processing unit spacer 220, an anion exchange membrane is attached to the concentration unit spacer 210.

The spacer is filled with an ion exchange resin (amount, anion exchange resin or mixed resin).

The condenser spacer 210 is attached to the upper portion of the treatment spacer spacer 220 and the other ion exchange membrane attached to the treatment spacer spacer 220 when used in the mesh type without the ion exchange resin is filled in the concentrate portion The mesh spacers are placed to form the module.

In the assembled state of the present invention, as shown in FIG. 1, the upper cover 110 and the lower cover 120 are sealed with the module body 100 by the 0-ring 115 to prevent the fluid from flowing out. Cover 110 and 120 is fixed to the concentrated water collection pipe 160 and the treated water collection pipe 150 by a nut 156 to configure the device.

The concentrated collection pipe 160 and the treated collection pipe 150 are shaped like a hollow pipe in the center, and the body has a plurality of small through-holes 155 through which the concentrated fluid and the processing fluid can come out. Lose.

It looks at the operation and effects of the present invention configured as described above.

When the fluid is introduced through the fluid inlet 101 of the module body 100, which is a pressure vessel, in a multi-step between the positive electrode 130 and the negative electrode 140 installed in the upper and lower portions in the introduced module body 100 It is introduced into the concentrated spacer 210 and the processing unit spacer 220 installed.

That is, the fluid flows through the inflow liquid inlet 203 of the treatment unit spacer 220 and passes along the fluid flow path 202 so that the fluid processed passes through the through hole 155 of the treated water collecting pipe 150 of FIG. Gathered through and collected by the treated water collecting pipe 150 is discharged.

When the cell spacer 220 of FIG. 2 is rotated 180 °, the cell spacer 220 is switched to different spacers.

That is, when the processor spacer 220 is rotated 180 °, it is used as the concentrator spacer 210. In this case, the treated water passage 205 serves as the concentrated water passage 204, and the concentrated water passage 204 is the treated water passage. (205) to play a role.

In addition, the electrodes 130 and 140 are attached to the upper and lower cover portions, and there is a mesh type electrode portion spacer 230 in contact with the electrode, and fluid flows through the electrode portion spacer 230 to flow the electrodes. It is discharged to the outside through the electrode portion fluid outlet 171 located in the cover portion.

In the negative electrode 140, which is a lower electrode part, the electrode part fluid flowing through the electrode is discharged to the electrode part fluid outlet 171 through the electrode fluid passage 170 in which the plurality of cell spacers 200 are collected.

The module of the present invention is a new cylindrical device module different from the existing device type and has the following advantages.

First: The module of the existing device type is not efficient because it is difficult to attach a container that can withstand the pressure on the outside and the box-type container is structurally weak in pressure.

Therefore, conventional electrodialysis or electro-ion exchanger does not have a pressure vessel outside.

However, in the present invention, since it is configured in the form of a cylinder, it is economical and convenient to manufacture and apply a pressure vessel using a pipe or the like.

Second: Because the existing devices are difficult to apply the pressure vessel, the fluid cannot be supplied to the cell directly from the outside as in the present invention, and the fluid is supplied through the fluid inlet configured in the CELL PAIR. Excessive pressure when passing through the spacers causes fluid to leak outwards, making it difficult to maintain the cleanliness of the surroundings.

However, in the present invention, there is no leakage of fluid because the fluid is introduced into the pressure vessel and directly supplied to the processing unit or the concentrating unit, and the inlet of the fluid supplied for the processing unit, the concentrating unit, and the electrode unit is separated from each other. Since the piping configuration is complicated, in the present invention, only one fluid inlet is provided in the pressure vessel portion, and the inflow fluid of the processing unit, the concentrating unit, and the electrode unit is distributed inside the container, thereby simplifying the apparatus and piping.

Third: In the case of forming a cell by filling an ion exchange resin inside the spacer in the conventional ion removal device, both sides are attached with an ion exchange membrane in order to keep the ion exchange resin filled, but in the present invention, only one side of the ion exchange membrane is attached. By adhering, the ion exchange resin can be filled and the other side can be assembled to be detachable without attaching another ion exchange membrane, and if necessary, the ion exchange resin can be replaced inside the spacer.

Fourth: The fluid supplied to the electrode part is electrolyzed at the electrode part, and the polarization is caused by the gases and materials generated.

Therefore, the product gas and materials must be smoothly discharged for good efficiency.

The present invention has a discharge port in the center portion so that the gas and materials generated at this time can be smoothly discharged to be discharged to the top.

Fifth: In the present invention, a distance between the treatment fluid outlet, the concentrated fluid outlet, and the electrode fluid outlet is concentrated by the tightening of the treated water collecting pipe and the concentrated water collecting pipe so as to provide sufficient sealing so that each fluid is not mixed. It was.

Sixth: in the electrodialysis apparatus or the ion removal device, the longer the length of the fluid passes, the better the treatment. In the present invention, the fluid passage length is at least 500 mm or more to obtain the maximum effect.

Seventh: In the present invention, the flow path is formed in the form of concentric circles to minimize the interference of the flow path when the fluid flows.

As described above, in the present invention, a new cylindrical device module is new in form and configuration from the existing electrodialysis device or the electro-ion removal device.

As described above, the module of the present invention is a new type of module capable of constituting a device in a cylindrical shape, and a new type of module that can be applied to an electrodialysis device or an ion removal device, in particular, because the device is generally simple and easy to install. to be.

Claims (9)

A module body 100 which is a cylindrical pressure vessel having one supply fluid inlet 101 and one drain outlet 102; A cover (110) (120) having a positive electrode (130) and a negative electrode (140) inside, respectively, on the upper and lower ends of the module body (100); A plurality of cell spacers 200 installed inside the cover 110 and 120 to form a concentrator spacer 210 and a processor spacer 220; Remove the electric ions, characterized in that the treatment collection pipe 150 and the concentrated collection pipe 160 are inserted into the concentrated water passage 204 and the treatment water passage 205 formed in the center of the cell spacer 200, respectively. Device module. The apparatus of claim 1, wherein the required fluids supplied to the concentrating unit, the processing unit, and the electrode unit in the module body 100, which are pressure vessels, are simultaneously supplied through one supply fluid passage 101. module. According to claim 1, wherein the concentrated portion collecting pipe 160 and the treatment collection pipe 150 is installed in the central portion of the cell spacer 200 and the both ends of the collection pipe 160, 150 is tightened with a tightening nut 156. Electro-ion remover module characterized in that the module is fixed by zooming. According to claim 1, The cell spacer 200 is a flow path guided in a spiral formed around one of the concentrated water passage 204, one treatment water passage 205 and two electrode fluid passages 170 in the center Electrolytic ion removal device module, characterized in that the fluid channel (202) through which the two or more fluids flow by the plate (201). According to claim 1 or claim 4, The cell spacer 200 in the form of a circular plate forming a thickening portion spacer 210 and the processing portion spacer 220 to be installed opposite to each other 180 °, the supply fluid penetrates the side portion And a supply fluid is supplied to the helical fluid flow path 202 through the inlet liquid inlet 203. The cell spacer 200 has a width of the fluid flow passage 202 within 10-30 mm, a length of the spiral flow passage of about 500-1500 mm, and a spacer size of 100 mm or more in diameter 400. Mm, wherein the spacer thickness is between 0.5 mm and 6 mm. The electric ion removing device module according to claim 1, wherein the cell spacer (200) forms a spiral flow path in the mesh to form a spacer of the processing unit and the concentrating unit. The method of claim 1, wherein an ion exchange membrane 240 is attached to one surface of the processing unit spacer 220 of the cell spacer 200, and a cation exchange resin or anion exchange resin or a cation exchange resin and an anion are formed inside the processing unit spacer 220. Electro-ion removal device module, characterized in that the exchange resin is mixed with the mixed resin 250 is mixed. The electric ion removing device module of claim 1, wherein an ion exchange membrane and a different ion exchange membrane attached to the processor spacer 220 are attached to a lower portion of the enrichment spacer 210 of the cell spacer 200. .