CN201882951U - Ion exchange device - Google Patents
Ion exchange device Download PDFInfo
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- CN201882951U CN201882951U CN201020564438XU CN201020564438U CN201882951U CN 201882951 U CN201882951 U CN 201882951U CN 201020564438X U CN201020564438X U CN 201020564438XU CN 201020564438 U CN201020564438 U CN 201020564438U CN 201882951 U CN201882951 U CN 201882951U
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- header
- ion exchange
- container
- connection section
- junctor
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- Treatment Of Water By Ion Exchange (AREA)
Abstract
The utility model aims to provide an ion exchange device. A liquid receiving surface of a container and that of an upper cover of the container are made of synthetic resin, which ensures that metal components are prevented from dissolving out of the liquid receiving part of the container, the assembly and the disassembly of water collecting pipes are easier, and raw water can be prevented leaking to the water collecting pipes. Ion exchange resin is filled in the container 1, and the raw water from a raw water inflow port 4 and after ion exchange treatment is extracted from a filter 9 and the water collecting pipes made of synthetic resin through a water collecting pipe connecting part 5. The water collecting pipe connecting part 5 is inserted into a connector 7, and the water collecting pipe connecting part 5 and the connector 7 are sealed through more than two O-shaped rings. The liquid receiving surfaces of the metal components are covered by fluororesin films.
Description
Technical field
The utility model relates to the ion exchange unit that ion exchange treatment is carried out in ion exchange resin water flowing in being filled in container, and the non-regenerative that particularly relates to the subsystem that is suitable as Ultrapure Water Purifiers mixes the ion exchange unit that bed formula ion exchange unit uses.
Background technology
Ultrapure Water Purifiers from former water manufacturing such as town water, underground water, process water ultrapure water basically, is made of pretreating device, 1 st pure water manufacturing installation and subsystem (subsystem claims the second pure water manufacturing installation again).Wherein, pretreating device by cohesion, floating go up, filtration unit constituted.The 1 st pure water manufacturing installation possesses 2 reverse osmosis membrane tripping devices and mixes bed formula ion exchange unit, or Di and reverse osmosis membrane tripping device etc.In addition, subsystem (second pure water manufacturing installation) possesses low pressure ultraviolet ray oxidation unit, mixes bed formula ion exchange unit and ultra-filtration (UF) membrane separation unit etc.
In the ultrapure water that the manufacturing engineering of electronicss such as semi-conductor is utilized, requirement is extremely low as the concentration of the metal ingredient of impurity.In order to adapt to this requirement, as ion exchange unit, use synthetic resins such as the liquid-contacting part of container etc. or Stainless Steel Products, fluoro-resin coating member have following technology open particularly.
I) use FRP (fibre reinforced plastics) container made (Japanese Patent discloses flat 3-64195, and Japanese Utility Model discloses flat 5-9113, and Japanese Patent discloses flat 6-86976 etc.).
The Di of having filled ion exchange resin in the FRP container made is widely used as large-tonnage product.Usually, by the macromolecular material blow molding is made as the inner casing that meets liquid portion, make shell with FRP and strengthen.
In 0024 paragraph of Japanese kokai publication hei 6-86976, meet liquid portion and constitute with polyethylene and polypropylene, its outside strengthens with FRP.
Ii) use the parts of stainless steel
The Japanese Patent spy opens 2006-263718, the Japanese Patent spy opens among the 2007-7651, and enclosure body and loam cake are made of stainless steel.The flat plate that has used SUS316 among the Japanese patent laid-open 9-117677 is as the next door in the ion exchange tower.
Iii) use similar fluorine resin, the undissolved material of composition (Japanese kokai publication hei 8-231207 etc.)
Fluorine resin is at chemically stability height.Among the Japanese patent laid-open 8-231207, the mixed bed formula ion exchange resin column of having adorned polytetrafluoroethylene (PTFE) in the utilization carries out removing of hydrogen peroxide ions.
But, these technology i in the past)～there is following shortcoming in iii).
Above-mentioned i) situation is because by making container with adhesive inner casing and shell, it is higher to connect the contaminated risk of liquid portion (inner casing) during making.
Above-mentioned situation ii), can be from stainless steel the stripping metal ingredient.
As the above-mentioned situation of iii) using chemically stable high fluorine resin, the processing of fluorine resin is difficulty very.
Usually, because fluorine resin price height, by ejection formation, the system of cutting wait and make container etc. and uneconomical individually with it.Therefore, preferably utilize high-intensity stainless steel to make container, utilize fluorine resin to apply or serve as a contrast to paint to connect liquid level.
Although in the method that fluorine resin applies or lining is coated with the whole bag of tricks is arranged, need tackiness agent plate lining method, with the pine lining method of the complete non-adhesiveness of mother metal as the working method of the device that is used to obtain highly purified ultrapure water and be not suitable for.Therefore, in the making of the container of ion exchange unit, preferably apply or serve as a contrast and be coated with electrostatic powder coating method or slipper dip method.
In the electrostatic powder coating method, owing to be sprayed onto on the charged in advance mother metal, if apparatus structure complexity then be difficult to obtain the thickness of homogeneous with the micropowder of spray gun with fluorine resin.In addition, in the electrostatic powder coating method, can stay concaveconvex shape, make to apply (or lining is coated with) difficulty as trickle concaveconvex shapes such as screw threads.
In the slipper dip method, vessel surface all coated (or lining is coated with) stays as trickle concaveconvex shapes such as screw threads, makes that container is connect liquid level all applies (or lining is coated with) difficulty.
Also considered at first metal parts to be applied (or lining is coated with) with fluorine resin, utilized this metal parts to make container afterwards again.But owing to compare with the fusing point (250～330 ℃) of fluorine resin, near the temperature that reaches the welding portion during the stainless steel welding is very high, can't carry out welding operation after applying (or lining is coated with).In addition, the processing of holing after the coating (or lining is coated with) etc. can make and be subjected to stress on the fluorine resin mulch film, causes that epithelium comes off etc.Therefore on the device production order, also be subjected to bigger restriction.
In addition, non-regenerative ion exchange unit as subsystem, possess the ion exchange resin of filling in container with loam cake, this container, be supported on and cover the type (for example except above-mentioned Japanese patent laid-open 6-86976, the Japanese Patent spy opens 2001-104952 etc.) that enables to take out the header of the water that contacts with ion exchange resin and be installed on the strainer of this header lower end on this and be widely used.This non-regenerative ion exchange unit, every 1-2 that crosses takes out from subsystem, carries out the replacing operation of ion exchange resin.When the ion exchange resin of this non-regenerative ion exchange unit was changed, header and strainer also are removed cleaned or changes new product.Therefore to be installed to the method for container upper cover can not be welding to header, and in order to take into account that coatings (or lining is coated with) processed and can not be for screwing togather.
And if this header is installed to the stopping property deficiency of the part of loam cake, the direct seepage of then former water (treating water side) in header makes water quality treatment descend.
Above-mentioned Japanese Patent spy drives the ion exchange unit of 2001-104952, is used for demineralized water treatment device and Water Purifiers (this communique 0002 paragraph), can not be applicable to the ultrapure water subsystem that impurity concentration is extremely low.In addition, the FRP of similar this communique makes water tank, because the scale error on making is bigger, need adjust the direction (this communique 0006 paragraph) of the tubular axis that catchments of divider with O shape circle and interconnecting device.
In addition, this Japanese Patent spy opens among the 2001-104952, has used the spring (claim 6) of recoverable deformation " can on direction of principal axis ", " surface of spring is by resin formation (claim 7) " in the interconnecting device.If the parts of such recoverable deformation are present in the container, then become the generation source of micropartical etc., can't obtain highly purified ultrapure water.
The prior art document
Patent documentation 1: the special fair 3-64195 of Japanese Patent
Patent documentation 2: the real fair 5-9113 of Japanese Patent
Patent documentation 3: Japanese patent laid-open 6-86976
Patent documentation 4: the Japanese Patent spy opens 2006-263718
Patent documentation 5: the Japanese Patent spy opens 2007-7651
Patent documentation 6: Japanese patent laid-open 9-117677
Patent documentation 7: Japanese patent laid-open 8-231207
Patent documentation 8: the Japanese Patent spy opens 2001-104952
Summary of the invention
The purpose of this utility model is for providing a kind of ion exchange unit, the liquid level that connects of its container and container upper cover is a synthetic resins, prevent to connect liquid portion stripping metal ingredient, and the loading and unloading of header also become easily, and can prevent the seepage of former water in header from container.
Ion exchange unit of the present utility model is for accommodating the ion exchange unit of ion exchange resin in connecing the container that liquid level is a synthetic resins, this container has: the container body that top is open, be installed on the loam cake on this container body, be arranged at the former flow inlet and the header connection section that cover on this, the header that the lower end has strainer is disposed in this container, the upper end of this header is connected with this header connection section, it is characterized in that: the upper end of this header links the tubular junctor, this junctor is embedded in the header connection section, and the contact surface of junctor and header connection section is sealed by the circle of the O shape more than 2.
In a kind of embodiment of ion exchange unit of the present utility model, said vesse body, loam cake, former flow inlet and header connection section are to connect the metal products that liquid level is covered by the fluoro-resin overlay film, above-mentioned header, strainer and junctor are synthetic resin article, the above-mentioned header connection section of tubular inserts in the endoporus of this junctor, above-mentioned O shape circle remains on the inner peripheral surface of this junctor, and this O shape circle joins with the periphery of header connection section.
Ion exchange unit of the present utility model utilizes plural O shape circle and junctor to realize the installation of header to container upper cover.Junctor is embedded in the header connection section by O shape circle, and the dismounting of header and installation are all easy.In addition, owing to can finely tune the chimeric position of junctor, can adjust the upper-lower position of the strainer of header lower end to the header connection section.Thus, excessively strong push of strainer can be prevented, excessive stress can be prevented to produce on the fluoro-resin overlay film of this container bottoms container bottoms.
In the utility model, the liquid level that connects of container body and loam cake etc. is a synthetic resins, can prevent from constituting the metallic substance stripping metal ingredient of container body and loam cake.
In the utility model, the former water pipe arrangement of being connected of container and container upper cover, container upper cover and with the situation of using ferrule arrangement to clamp being connected for the treatment of water pipe arrangement under, can simplification device structure, and can prevent from when fastening on the synthetic resins epithelium of fluoro-resin etc., to produce local stress.
Description of drawings
Fig. 1 is the sectional view of the container of the ion exchange unit described in the embodiment.
Fig. 2 is the top enlarged view of the container of Fig. 1.
Fig. 3 is the schematic sectional view that shows experimental installation.
Embodiment
Below, with reference to figure 1 and Fig. 2 embodiment is described.Fig. 1 is the longitudinal section of the container of the ion exchange unit described in the embodiment, and Fig. 2 is the amplification sectional view of the header connection section of this container.
This container 1 possesses: closed bottom, the container body 2 of upper surface open only; Be installed on the loam cake 3 on the top of this container body 2; Be arranged at the former flow inlet 4 on this loam cake 3; Header connection section 5; The input port 6 of ion exchange resin; The upper end is connected in header 8 on this header connection section 5 by junctor 7; Be installed on the catchment filter 9 etc. of the lower end of this header 8.
Container body 2 is the general cylindrical shape of above-below direction for the tube axis direction in this embodiment, and the bottom lower surface is provided with runners 2a.The periphery of the upper end-face edge of container body 2 is provided with flange part 2b.Hollowly be provided with O shape ring recess (mark slightly) in the upper surface of this flange part 2b, be provided with O shape circle (diagram slightly) in this O shape ring recess.This O shape ring recess is around container body 2.
Container body 2 is metal products (in this embodiment for stainless steel), being covered by the fluoro-resin overlay film all of the upper surface of whole, the flange part 2b of internal surface and the groove face of O shape ring recess.
Loam cake 3 is discoideus, and its circumference coincides with this flange part 2b, is linked to flange part 2b by anchor clamps 10.Loam cake 3 is metal products (being stainless steel in this embodiment), and the whole of its lower surface are covered by the fluoro-resin overlay film.
Former flow inlet 4 is the tubular that connects loam cake 3, is fixedly welded on loam cake 3, and its upper end is provided with flange part 4a, is used for former water pipe arrangement (diagram slightly) is connected with lasso (illustrating slightly).In the bottom of former flow inlet 4, the divider 11 of synthetic resin article (being polypropylene in this embodiment) has been installed, has been used for Jiang Yuanshui and is sprayed in the container body 2 by ultrasound welding etc.Former flow inlet 4 is metal (in this embodiment for stainless steel) goods, and it connects liquid level (inner peripheral surface whole and at the periphery of loam cake 3 downsides) and the upper surface of flange part 4a is covered by the fluoro-resin overlay film.
The ion exchange resin input port 6 of tubular is by the circumference of the opening 12 that is fixedly welded on loam cake 3 and is provided with, and is metal (in this embodiment the be stainless steel) goods of projection to the top, is provided with flange part 6a on it.The whole of the upper surface of the inner peripheral surface of this input port 6 and flange part 6a are covered by the fluoro-resin overlay film.
The upper end tegmentum 6b of input port 6 covers, and is fixed in flange part 6a with lasso (diagram slightly).By taking off lasso, can be from the input port 6 take off and cover 6b.
Below, with reference to Fig. 2 the connection structure that header connection section 5 and header 8 are connected to header connection section 5 is described.
Header connection section 5 is for connecting the tubular of loam cake 3, and its upper end is provided with flange part 5a, is used for that treating water is taken out pipe arrangement (diagram slightly) and connects with lasso.Header connection section 5 was inserted opening set on the loam cake 3 13, was fixed in loam cake 3 by welding (welding metals of label 14 these welding of expression).
Header connection section 5 bottoms are than top wall thickness, and the internal diameter of bottom is little because of the internal diameter on wall ratio top.The external diameter of header connection section 5 except flange part 5a, is identical from top to bottom.This header connection section 5 is metal (being stainless steel in this embodiment) goods, and the upper surface of the whole and flange part 5a of inner circumferential surface is covered by fluoro-resin overlay film 15.This fluoro-resin overlay film 15 from flange part 5a continuously to the internal surface of header connection section 5.
Junctor 7 is cylindric, and header connection section 5 and header 8 insert its endoporus respectively.In the inner peripheral surface of the roughly middle portion of the above-below direction of this junctor 7, be provided with protuberance 7a in mode around this inner peripheral surface.In the inner peripheral surface on the top of junctor 7, be provided with the groove (mark slightly) that two O shape circles that separate on the above-below direction are installed usefulness, each groove has been installed O shape circle 16 respectively.O shape is posted by on the periphery of header connection section 5 with enclosing 16 watertightnesses.In addition, the number that is provided with of O shape circle 16 also can be for more than 3.
Header 8 and junctor 7 are fluoro-resin (in this embodiment for PVDF) goods, preferably header 8 are inserted in the junctors 7 up to being posted by on the protuberance 7a, and be fixing by ultrasonic welding etc.
Strainer 9 is the synthetic resin article of polypropylene etc., is fixed in the lower end of header 8 by ultrasonic welding etc.
After junctor 7 and strainer 9 are fixed on the header 8, be embedded in the endoporus of this junctor 7, make header 8 be connected in header connection section 5 by making header connection section 5.
Header 8, junctor 7, former water dispenser 11 and catchment filter 9 are preferably the less high purity synthetic resin article of impurity stripping, as mentioned above, header 8 and junctor 7 are PVDF (polyvinylidene difluoride (PVDF)) goods in this embodiment, and former water dispenser 11 and catchment filter 9 are PP (polypropylene) goods.
The thickness that connects the fluoro-resin overlay film that forms in the liquid portion of container body 2 and loam cake 3 is 100～800 μ m, is preferably 200～500 μ m, especially about 300 μ m.
As the formation method of fluoro-resin overlay film, preferably use electrostatic powder coating method or slipper dip method.In the electrostatic powder coating method, go up spraying at the good lining body of preheating (container body or loam cake etc.), it is thereon attached to utilize electrostatic atomizer that fluororesin powder is blown, thereby makes powder melts form overlay film.In the slipper dip method, the air-flow by air or nitrogen flows fluororesin powder, forms fluidised bed, and the lining body after the preheating (container body or loam cake etc.) be impregnated in this fluidised bed, forms overlay film.As fluoro-resin, preferred ETFE (tetrafluoroethylene (C
2F
4) and ethene (C
2H
4) interpolymer), PFA (tetrafluoroethylene perfluorinated alkoxy vinyl ether interpolymer) etc.
As O shape circle, be preferably the few high purity rubber of impurity stripping and form, especially be preferably the O shape circle of viton system.Viton as being used for O shape circle can be Viton (Du Pont's registered trademark), Kalrez (Du Pont's registered trademark), Aflas (Asahi Glass registered trademark) etc. as an example.
So in the ion exchange unit that constitutes, junctor 7 has been installed in the upper end of header 8, and embedded header connection section 5 encloses 16 with the O shape more than 2 between the periphery of the inner peripheral surface of junctor 7 and header connection section 5 and seals in this junctor 7.Therefore, making that in the ease of connection of header 8 and header connection section 5, stopping property between the two is good, can prevent that former seepage is in treating water.
In addition, in the syndeton of this header connection section 5 and junctor 7, junctor 7 can move up and down with respect to header connection section 5.Therefore, the height of header 8 can be finely tuned, strong excessively the pushing of the bottom surface of 9 pairs of container bodys 2 of catchment filter can be prevented.Therefore, can prevent to produce excessive stress on the fluoro-resin overlay film of bottom interior surface of container body 2.
In this embodiment, the liquid level that connects of container body 2, loam cake 3, former flow inlet 4, header connection section 5 and input port 6 is covered by the fluoro-resin overlay film, and divider 11, junctor 7, header 8 and strainer 9 are synthetic resin article, can prevent the stripping of metal.
Therefore, by this ion exchange unit, can obtain the significantly reduced ion exchange treatment water of metal concentration.
Below, the experimental example that experimentizes at the seepage of the metal ion in the former water side direction header 8 in the above-mentioned ion exchange unit describes.
＜experimental example 1 〉
In an O shape circle 16, all the other ion exchange units identical with Fig. 1, Fig. 2 only be installed, making the container body 2 of stainless steel and the overlay film that connects liquid level of loam cake 3 was the ETFE coating of thickness 300 μ m.Header 8 and junctor 7 are the PVDF goods, and divider 11 and strainer 9 are the PP goods.As shown in Figure 3, the lower end of header 8 replaces strainer 9 closures with the closure plate 20 of PVDF goods, is full of ultrapure water in header 8, the upper end mounting cover 19 of header 8.Air in the container 1 is extracted out, injected the NaCl aqueous solution of the Na ionic concn 10g/L in the former tank 21 in the container 1 full from former flow inlet 4 up to water by pump 22 and pipe arrangement 23.After filling with the NaCl aqueous solution in the container 1, reach 0.7MPa with the indicator value of pressurizeing in 22 pairs of containers 1 of pump up to pressure warning unit 24.Mark 25 expressions of Fig. 3 are connected to the front end of pipe arrangement 23 lasso of the flange part 4a of former flow inlet 4.
Keeping stopping pump 22 under this pressure status, placed 1 hour, measure the Na concentration in the header after 1 hour.Its result is as shown in table 1.
＜experimental example 2 〉
Making the number of O shape circle is shown in Figure 22, and other is identical with experimental example 1, experimentizes.The result is as shown in table 1.
＜experimental example 3 〉
Making the number of O shape circle is 3, and other is identical with experimental example 1, experimentizes.The result is as shown in table 1.
Table 1
As shown in table 1, O shape circle is under the situation more than 2, the Na concentration in the header be 10 μ g/L following (with respect to former water be 1,000,000/following), can obtain enough stopping propertys as can be known.
Description of symbols
1 container
2 vessels
3 loam cakes
4 former flow inlets
5 header connection sections
The input port of 6 ion exchange resin
7 junctors
8 headers
9 strainers
11 dividers
15 fluoro-resin overlay films
16 O shapes circle.
Claims (2)
1. ion exchange unit,
Described ion exchange unit contains ion exchange resin in connecing the container that liquid level is a synthetic resins, described container has: the open container body in top, be installed on loam cake on this container body, be arranged at the former flow inlet and the header connection section that cover on this
The header that the lower end has strainer is disposed in this container, and the upper end of this header is connected with this header connection section;
It is characterized in that,
The upper end of this header links the tubular junctor, and this junctor is embedded in the header connection section, and the contact surface of junctor and header connection section is sealed by the circle of the O shape more than 2.
2. ion exchange unit as claimed in claim 1 is characterized in that,
Described container body, loam cake, former flow inlet and header connection section are to connect the metal products that liquid level is covered by the fluoro-resin overlay film;
Described header, strainer and junctor are synthetic resin article, and the described header connection section of tubular inserts in the endoporus of this junctor;
Described O shape circle remains on the inner peripheral surface of this junctor, and this O shape circle joins with the periphery of header connection section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020564438XU CN201882951U (en) | 2010-10-15 | 2010-10-15 | Ion exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020564438XU CN201882951U (en) | 2010-10-15 | 2010-10-15 | Ion exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882951U true CN201882951U (en) | 2011-06-29 |
Family
ID=44180489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020564438XU Expired - Lifetime CN201882951U (en) | 2010-10-15 | 2010-10-15 | Ion exchange device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201882951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408382A (en) * | 2018-03-08 | 2018-08-17 | 深圳市正源三清环保科技有限公司 | A kind of filtrate delivery device |
-
2010
- 2010-10-15 CN CN201020564438XU patent/CN201882951U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408382A (en) * | 2018-03-08 | 2018-08-17 | 深圳市正源三清环保科技有限公司 | A kind of filtrate delivery device |
| CN108408382B (en) * | 2018-03-08 | 2024-05-24 | 深圳市正源三清环保科技有限公司 | Filter material throwing device |
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| Date | Code | Title | Description |
|---|---|---|---|
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |