CN102515390A - Device for preparing pure water for analytical laboratory by ion exchange method - Google Patents
Device for preparing pure water for analytical laboratory by ion exchange method Download PDFInfo
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- CN102515390A CN102515390A CN2011104172713A CN201110417271A CN102515390A CN 102515390 A CN102515390 A CN 102515390A CN 2011104172713 A CN2011104172713 A CN 2011104172713A CN 201110417271 A CN201110417271 A CN 201110417271A CN 102515390 A CN102515390 A CN 102515390A
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Abstract
The invention discloses a device for preparing pure water for an analytical laboratory by an ion exchange method. A multistage multi-column exchange column is connected behind a multi-column system in series, so as to form a multi-column-multistage multi-column ion exchange pure water device; and cation exchange resin and anion exchange resin are alternately filled in a shorter exchange column according to a certain proportion, the two kinds of resin are separated by a sieve plate so as to form a multistage multi-column unit, and a plurality of multistage multi-column units are connected in series to from the multistage multi-column. Compared with a multi-column method, in the ion exchange method, as one multistage multi-column is connected in series, a plurality of times of exchange balance can be realized in the multi-column, and the water purity is increased; and compared with a mixing column, in the multi-column, the cation exchange resin and the anion exchange resin are separated by the sieve plate, the direct mixing of the two kinds of the resin can be avoided, and the regeneration is easy.
Description
Technical field
The invention belongs to assay office and use pure water preparation equipment, relate to a kind of ion exchange method and prepare the device of assay office with pure water.
Background technology
Ion exchange method is an assay office with one of preparation method commonly used of pure water.The ion exchange pure water device that generally adopts at present can be divided three classes: the one, and the biprism system, the positive and negative ion exchange column is alternately arranged, series connection is used; The 2nd, mixing column is about to two kinds of ion exchange resin of positive and negative and mixes the exchange column that the back filling forms by a certain percentage; The 3rd, biprism-mixing column system, the mixing column of promptly after the biprism system, connecting.
Biprism, mixing column and biprism-mixing column ion exchange pure water apparatus features is all fairly obvious.For biprism, two kinds of ion exchange resin of positive and negative do not mix, and regeneration is easy, but water outlet purity is low, if improve water outlet purity through increasing placed in-line pillar number, resistance to flow will increase greatly; Mixing column is equivalent to the unlimited series connection of positive and negative ion exchange column, has the high advantage of water outlet purity, and shortcoming is the resin regeneration difficulty, needs earlier cationic, anionic exchange resin to be separated during because of regeneration; Biprism-mixing column system compares with mixing column, can reduce resin isolation and regenerated number of times in the mixing column, and the shortcoming of resin regeneration difficulty still exists.
Summary of the invention
The present invention is for solving the problems of the technologies described above, provide a kind of avoid resembling the mixing column anion and cation exchange resin directly mixed cause the regeneration difficulty, can obtain the device of the pure water of higher degree simultaneously again.
The present invention is that the technical scheme that the deficiency that solves the problems of the technologies described above adopts is: a kind of ion exchange method prepares the device of assay office with pure water; This device is made up of compound exchange column system and multistage composite exchange column; Described compound exchange column system is made up of a cationic exchange coloum and two anion-exchange columns; Cationic exchange coloum and two anion-exchange column series connection, tap water get in the multistage composite exchange column through cationic exchange coloum, two anion-exchange columns successively; The resin layer top of described cationic exchange coloum and anion-exchange column is equipped with the current grid distributor; The top of cationic exchange coloum and anion-exchange column is provided with purging valve, and the interior lower end of cationic exchange coloum and anion-exchange column is equipped with the tree that is used to support resin and refers to supporting plate.
Multistage composite exchange column of the present invention comprises a plurality of biprisms unit; Two biprism unit that face mutually connect through flange; The unitary upper strata of each biprism is a Zeo-karb; Lower floor is an anionite-exchange resin, is provided with the resin division plate between Zeo-karb and the anionite-exchange resin, and the anionite-exchange resin bottom is provided with the resin support plate.
The top of multistage composite exchange column of the present invention is provided with the Zeo-karb short column.
Beneficial effect of the present invention is: the present invention compares with the biprism method; Because of the multistage biprism of having connected; In this post, can realize repeatedly exchange equilibrium; Water outlet purity is increased, go out water conductivity and can reduce to 0.008mS/m, reach GB/T6682-2008 " assay office water specification and TP " one-level water quality standard; Compare with mixing column,, avoided two kinds of resins directly to mix, make regeneration easily because of two kinds of ion exchange resin of positive and negative separate with sieve plate.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1, compound exchange column system, 2, the multistage composite exchange column, 201, the Zeo-karb short column; 3, cationic exchange coloum, 301, the current grid distributor, 302, purging valve; 4, anion-exchange column, 5, the biprism unit, 501, Zeo-karb; 502, anionite-exchange resin, 503, the resin division plate.
Embodiment
As shown in the figure; A kind of ion exchange method prepares the device of assay office with pure water; This device is made up of compound exchange column system 1 and multistage composite exchange column 2; Described compound exchange column system 1 is made up of a cationic exchange coloum 3 and two anion-exchange columns 4, cationic exchange coloum 3 and two anion-exchange columns 4 series connection, and tap water gets in the multistage composite exchange columns 2 through cationic exchange coloum 3, two anion-exchange columns 4 successively; The resin layer top of described cationic exchange coloum 3 and anion-exchange column 4 is equipped with current grid distributor 301; The top of cationic exchange coloum 3 and anion-exchange column 4 is provided with purging valve 302, and the interior lower end of cationic exchange coloum 3 and anion-exchange column 4 is equipped with the tree that is used to support resin and refers to supporting plate.
Described multistage composite exchange column 2 comprises a plurality of biprisms unit 5; Two biprism unit that face mutually 5 connect through flange; The upper strata of each biprism unit 5 is a Zeo-karb 501; Lower floor is an anionite-exchange resin 502, is provided with resin division plate 503 between Zeo-karb 501 and the anionite-exchange resin 502, and anionite-exchange resin 502 bottoms are provided with the resin support plate.
The top of described multistage composite exchange column 2 is provided with Zeo-karb short column 201.
The structure of multistage biprism: with Zeo-karb and anionite-exchange resin by a certain percentage (relative size with two kinds of exchange capacity of resin is decided) alternative be seated in the less exchange column of length; Separate with sieve plate between two kinds of resins; This has just formed multistage biprism unit, and a plurality of multistage biprism unit strings are connected together has just formed multistage biprism.The number of unit that constitutes multistage biprism can be according to confirming that to the requirement of water outlet purity the water outlet purity requirement is high more, and required number of unit is many more.Because carrying out along with exchange process; Ion content to be exchanged is reducing gradually in the water, so each unitary length can reduce from front to back successively, helps increasing the unitary number of multistage biprism under the certain situation of resin layer height keeping like this; Improve water outlet purity; If it is constant to keep number of unit, then can reduce the resin layer height, reduce resistance to flow.Be alkalescence owing to leave the water of biprism system, early lost efficacy, before it, can increase by a Zeo-karb short column for avoiding first module.The resin layer top of Zeo-karb short column is provided with the current grid distributor, and the top of multistage biprism is provided with purging valve.
Manufactured experimently a biprism-multistage biprism ion exchange pure water system by the aforementioned techniques scheme, its structure is as shown in Figure 1.Material is the pvc pipe material, and resin is strongly acidic styrene type cation exchange resin and strong alkaline quaternary ammonium type anionite-exchange resin; The biprism system comprises a cationic exchange coloum, two anion-exchange columns, diameter 160mm, and the total height of every pillar is 1600mm, the resin layer height is 1200mm; Multistage biprism comprises three multistage biprism unit, and each unitary height is 450mm, cation exchange resin layer height 140mm wherein, and the anion exchange resin layer height is 280mm; The height of the Zeo-karb short column before the first module is 400mm, and the resin layer height is 300mm; Purging valve is all installed at the top of every pillar.
Exchange effect: go out water conductivity and can reduce to 0.008mS/m, reach GB/T6682-2008 " assay office water specification and TP " one-level water quality standard.
Claims (3)
1. an ion exchange method prepares the device of assay office with pure water; It is characterized in that: this device is made up of compound exchange column system (1) and multistage composite exchange column (2); Described compound exchange column system (1) is made up of a cationic exchange coloum (3) and two anion-exchange columns (4); Cationic exchange coloum (3) and two anion-exchange columns (4) series connection, tap water gets in the multistage composite exchange column (2) through cationic exchange coloum (3), two anion-exchange columns (4) successively; The resin layer top of described cationic exchange coloum (3) and anion-exchange column (4) is equipped with current grid distributor (301); The top of cationic exchange coloum (3) and anion-exchange column (4) is provided with purging valve (302), and the interior lower end of cationic exchange coloum (3) and anion-exchange column (4) is equipped with the tree that is used to support resin and refers to supporting plate.
2. a kind of ion exchange method as claimed in claim 1 prepares the device of assay office with pure water; It is characterized in that: described multistage composite exchange column (2) comprises a plurality of biprisms unit (5); Two biprism unit (5) that face mutually connect through flange; The upper strata of each biprism unit (5) is Zeo-karb (501); Lower floor is anionite-exchange resin (502), is provided with resin division plate (503) between Zeo-karb (501) and the anionite-exchange resin (502), and anionite-exchange resin (502) bottom is provided with the resin support plate.
3. a kind of ion exchange method as claimed in claim 1 prepares the device of assay office with pure water, it is characterized in that: the top of described multistage composite exchange column (2) is provided with Zeo-karb short column (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104172713A CN102515390A (en) | 2011-12-14 | 2011-12-14 | Device for preparing pure water for analytical laboratory by ion exchange method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104172713A CN102515390A (en) | 2011-12-14 | 2011-12-14 | Device for preparing pure water for analytical laboratory by ion exchange method |
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| CN102515390A true CN102515390A (en) | 2012-06-27 |
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| CN2011104172713A Pending CN102515390A (en) | 2011-12-14 | 2011-12-14 | Device for preparing pure water for analytical laboratory by ion exchange method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2597552Y2 (en) * | 1992-07-29 | 1999-07-05 | オルガノ株式会社 | Pure water production equipment |
| CN2354933Y (en) * | 1998-11-03 | 1999-12-22 | 肖俭星 | Household ion-exchange water purifier |
| JP3304412B2 (en) * | 1992-09-11 | 2002-07-22 | 栗田工業株式会社 | Pure water production method |
| CN201873584U (en) * | 2010-11-12 | 2011-06-22 | 洛阳市冠奇工贸有限责任公司 | Purifying device for pure water for graphite purification |
| CN202346856U (en) * | 2011-12-14 | 2012-07-25 | 河南科技大学 | Device for preparing pure water for analysis laboratory through ion exchange method |
-
2011
- 2011-12-14 CN CN2011104172713A patent/CN102515390A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2597552Y2 (en) * | 1992-07-29 | 1999-07-05 | オルガノ株式会社 | Pure water production equipment |
| JP3304412B2 (en) * | 1992-09-11 | 2002-07-22 | 栗田工業株式会社 | Pure water production method |
| CN2354933Y (en) * | 1998-11-03 | 1999-12-22 | 肖俭星 | Household ion-exchange water purifier |
| CN201873584U (en) * | 2010-11-12 | 2011-06-22 | 洛阳市冠奇工贸有限责任公司 | Purifying device for pure water for graphite purification |
| CN202346856U (en) * | 2011-12-14 | 2012-07-25 | 河南科技大学 | Device for preparing pure water for analysis laboratory through ion exchange method |
Non-Patent Citations (2)
| Title |
|---|
| 《沈阳航空工业学院学报》 20040630 陆少红 等 高纯度水的制取--离子交换树脂法 66-68 1-3 第21卷, 第3期 * |
| 陆少红 等: "高纯度水的制取——离子交换树脂法", 《沈阳航空工业学院学报》 * |
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Application publication date: 20120627 |