CN204848358U - Preparation facilities of trace high purity water - Google Patents
Preparation facilities of trace high purity water Download PDFInfo
- Publication number
- CN204848358U CN204848358U CN201520583637.8U CN201520583637U CN204848358U CN 204848358 U CN204848358 U CN 204848358U CN 201520583637 U CN201520583637 U CN 201520583637U CN 204848358 U CN204848358 U CN 204848358U
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- China
- Prior art keywords
- preparation facilities
- exchange column
- high purity
- post
- anion
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- 238000002360 preparation method Methods 0.000 title claims abstract description 59
- 239000012498 ultrapure water Substances 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000005349 anion exchange Methods 0.000 claims abstract description 39
- 239000003513 alkali Substances 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 28
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 8
- 239000001569 carbon dioxide Substances 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 6
- 235000011089 carbon dioxide Nutrition 0.000 description 12
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- -1 carbonate compound Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000011033 desalting Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000218218 Ficus <angiosperm> Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The utility model provides a preparation facilities of trace high purity water specifically contains: alkali lye container, anion -exchange column, first post, the muddy post of second, a plurality of valve of mixing, the alkali lye container links to each other with the anion -exchange column input, anion -exchange column and the first post input that mixes link to each other with the water inlet respectively, the anion -exchange column output links to each other with first muddy post input and delivery port respectively, the first post output that mixes links to each other with the muddy post input of second, the second mixes the post output and links to each other with the delivery port, the water inlet links to each other with the delivery port. With this, provide the device of a convenience, swift preparation trace high purity water to can eliminate in the air carbon dioxide to an influence of water quality, can be used to in the check -up thermal power plant chemical instrument like the check -up of electric conductance counting rate meter, pH table, solve the problem of the no check -up benchmark of this type of table meter.
Description
Technical field
The utility model relates to pure water preparation field, espespecially a kind of preparation facilities of micro-high purity water.
Background technology
High purity water has special meaning for the verification of chemical instruments.Such as 25 DEG C time, absolute pure electrical conductivity of water is about 0.055 μ s/cm, and corresponding pH is 7.0, therefore, according to this characteristic, can be used for the verification verifying chemical instruments in thermal power plant, as specific conductivity table, pH table etc.Absolute pure water preparation, except removing the salt in water body, also should eliminate the impact of carbonic acid gas on water body characteristic.In water, the carbonic acid gas of carbonic acid and dissolving has lower column balancing:
In water, non-dissociated carbonate concentration generally only has about 0.1% of gas concentration lwevel in water, and carbonic acid and carbonic acid gas are not easily distinguishable again, so so-called " free carbonic acid " or " free carbon dioxide " all refers to the total amount of carbonic acid and carbonic acid gas in water, its concentration can use [H
2cO
3] or [CO
2] symbol represents.Carbonic acid is weak diacid, and it and it salt is referred to as carbonate compound.The form that carbonate compound exists in water has three kinds: 1) molecularity dissolve carbonic acid gas and carbonic acid; 2) HCO of ionic condition
3 -, be called hydrocarbonate; 3) CO of ionic condition
3 2-, be called carbonate.The carbonic acid of various form transforms mutually by following reaction formula:
The first step and the second stage dissociation constant of carbonic acid are expressed as follows:
From above reaction formula, the relative proportion of carbonic acid various form content is relevant with the pH value of solution, and when different pH value, the relative proportion of various form carbonic acid as shown in Figure 1.As seen from Figure 1, when pH≤4.3, in water, CO is only had
2a kind of form; As pH=8.3, [HCO
3 -] can think close to 100%, [H
2cO
3]=[CO
2] ≈ 0; When pH>=8.3, CO
2disappear, HCO
3 -with CO
3 2-coexist; As pH > 10, HCO
3 -rapid reduction.It is fixed that the dissolving of carbonic acid gas in pure water meets Henry, and the content of the carbonic acid gas in air is about 0.03% by long-pending, and the partial pressure of carbon dioxide in typical atmospheric is 3.2 × 10
-5mPa.The gas concentration lwevel dissolved in high purity water is at different temperatures calculated according to Henry's law.When can calculate 25 DEG C and the high-purity electrical conductivity of water of atmospheric equilibrium be 0.86 μ s/cm, corresponding pH is 5.66.As can be seen here, carbonic acid gas is comparatively large to the properties influence of pure water, should eliminate its impact in the process of preparation.
In prior art, have two kinds of water treatments processed, the first be water after filter plant, remove positively charged ion in water body and negatively charged ion respectively through positive resin exchange column, negative resin exchange column, then deep desalting is carried out through hybrid resin post, finally obtained de-mineralized water.If pH is lower in water, have the molecular state carbonic acid gas of dissolving, then aforesaid method cannot be removed.The second be water after preliminary pre-treatment, then through ultrafiltration, reverse osmosis, EDI except Ficus caricaL.Aforesaid method can remove suspended substance in water and ionogen, and the carbonic acid gas for molecular state cannot be removed.
Utility model content
The utility model object is to provide a kind of water treatment device processed, and effectively can eliminate the impact of Carbon Dioxide in Air on water quality, for reaching above-mentioned purpose, the utility model provides a kind of preparation facilities of micro-high purity water, specifically comprises as follows:
The utility model provides a kind of preparation facilities of micro-high purity water, and described preparation facilities comprises: alkali liquor container, anion-exchange column, the first mixed post, the second mixed post, multiple valve; Described alkali liquor container is connected with described anion-exchange column input terminus; Described anion-exchange column is connected with water inlet respectively with the described first mixed post input terminus; Described anion-exchange column output terminal respectively post input terminus mixed with described first is connected with water outlet; Described first mixed post output terminal is connected with the described second mixed post input terminus; Described second mixed post output terminal is connected with described water outlet; Described water inlet is connected with described water outlet.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: on described water outlet, be provided with valve; Between described water inlet and described water outlet, pipeline is provided with valve; The output terminal of described anion-exchange column, the described first mixed post and the described second mixed post is respectively arranged with valve; The input terminus of described anion-exchange column and the described first mixed post is respectively arranged with valve.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: the water intake end of valve is also connected with drainage gas port on described water outlet, described drainage gas port is provided with valve.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: between described alkali liquor container and described anion-exchange column, pipeline is provided with setter, described setter exports for the alkali lye controlling described alkali liquor container.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: described anion-exchange column output terminal is provided with PH table meter, the pH value of described PH table meter for testing described anion-exchange column output liquid.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: on described water outlet and described drainage gas port, the water intake end of valve is provided with under meter, for detecting when preceding pipeline aquifer yield.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: the described first mixed post and the described second mixed post are connected on the preparation facilities of described micro-high purity water by demountable structure.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: the described first mixed post is the combination of positive resin exchange column and negative resin exchange column.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: the described second mixed post is hybrid resin post.
Advantageous Effects of the present utility model is: provide a kind of device preparing micro-high purity water easily and efficiently, and the impact of Carbon Dioxide in Air on water outlet quality can be eliminated, can be used for verifying chemical instruments in thermal power plant and, as the verification of specific conductivity table, pH table, solve the problem of such table meter no parity check benchmark.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a application's part, does not form restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the utility model is the relative quantity of various carbonate compound in water and the relation schematic diagram of pH value;
Fig. 2 is the preparation facilities structural representation of micro-high purity water provided by the utility model;
Fig. 3 is preparation method's schematic flow sheet of micro-high purity water provided by the utility model.
Drawing reference numeral
1-alkali liquor container, 2-anion-exchange column, 3-first mix post, 4-second mixes post, 5-under meter, 6-PH show meter, 7-setter, K1-K8 are valve
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is described in further details.At this, schematic description and description of the present utility model for explaining the utility model, but not as to restriction of the present utility model.
Please refer to shown in Fig. 2, Fig. 2 provides a kind of preparation facilities of micro-high purity water for the utility model, and described preparation facilities comprises: alkali liquor container 1, the mixed post of anion-exchange column 2, first 3, second mixed post 4, multiple valve K1-K8; Described alkali liquor container 1 is connected with described anion-exchange column 2 input terminus; Described anion-exchange column 2 is connected with water inlet respectively with the described first mixed post 3 input terminus; Described anion-exchange column 2 output terminal respectively post 3 input terminus mixed with described first and water outlet is connected; Described first mixed post 3 output terminal is connected with the described second mixed post 4 input terminus; Described second mixed post 4 output terminal is connected with described water outlet; Described water inlet is connected with described water outlet.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: on described water outlet, be provided with valve K7; Between described water inlet and described water outlet, pipeline is provided with valve; The output terminal of described anion-exchange column 2, the described first mixed post 3 and the described second mixed post 4 is respectively arranged with valve; Described anion-exchange column 2 is respectively arranged with valve with the input terminus of the described first mixed post 3.Discharge of wastewater and micro-high purity water conducting in pipeline is realized by controlling this valve K7.The water intake end being also included in valve on described water outlet in a preferred embodiment of the present utility model is also connected with drainage gas port, and described drainage gas port is provided with valve K8.With this, when valve-off K7, open valve K8, carry out exhaust-gas disposal in pipeline by conducting water inlet before pure water preparation.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: between described alkali liquor container 1 and described anion-exchange column 2, pipeline is provided with setter 7, described setter 7 exports for the alkali lye controlling described alkali liquor container 1.Wherein, this setter 7 is a common dosing pump, makes easy conducting in described alkali liquor container 1 to anion-exchange column 2, regulate the pH value in described anion-exchange column 2 with this by switch dosing pump.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: described anion-exchange column 2 output terminal is provided with PH and shows meter 6, described PH shows meter 6 for testing the pH value of described anion-exchange column 2 output liquid, when user is regulated by the PH of switch dosing pump to described anion-exchange column 2, whether reach by this pH value of the real-time understanding of this PH table meter 6 and need standard value, such as the pH value of anion-exchange column 2 is regulated between 8.5 ~ 9.0, with the carbonic acid gas in water-soluble in the elimination air of this maximum efficiency, " free carbonic acid " or " free carbon dioxide " in reduction water is on the impact of later stage high-purity water quality.
In the preparation facilities of above-mentioned micro-high purity water, also comprise: on described water outlet and described drainage gas port, the water intake end of valve is provided with under meter 5, for detecting when whether preceding pipeline aquifer yield is steady.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: the described first mixed post 3 and the described second mixed post 4 are connected to by demountable structure on the preparation facilities of described micro-high purity water, by this demountable structure, preparation facilities provided by the utility model conveniently can change the first mixed post 3 and the second mixed post 4.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: the described first mixed post 3 is the combination of positive resin exchange column and negative resin exchange column.What deserves to be explained is, the effect of the first mixed post 3 is herein original ion in preliminary removing water inlet and the carbanion that becomes due to carbon dioxide conversion free in the effect water of setter and bicarbonate ion; Relevant technical staff in the field also obtains above-mentioned effect by other mixed posts, and the utility model does not limit at this.
In the preparation facilities of above-mentioned micro-high purity water, preferably also comprise: the described second mixed post 4 is hybrid resin post.What deserves to be explained is, the effect of the second mixed post 4 is herein further deep desalting, guarantees that effluent quality reaches or close to theoretical pure water water quality; Relevant technical staff in the field also obtains above-mentioned effect by other mixed posts, and the utility model does not limit at this.
The utility model also provides a kind of preparation method of micro-high purity water, specifically please refer to shown in Fig. 3, Fig. 3 is preparation method's schematic flow sheet of micro-high purity water provided by the utility model, and described preparation method comprises in figure 3: regulate anionresin to mix post 2 to specifying pH value scope by alkali liquor container 1; Conducting water inlet, makes current successively through the mixed post of anion-exchange column 2, first 3 and the second mixed post 4; Obtain high purity water.
Also comprise in above-mentioned preparation method, before adjustment anion-exchange column to appointment pH value, now clean is carried out to this preparation facilities, concrete as conducting water inlet, by importing current, draining is exhausted to pipeline each in the preparation facilities of micro-high purity water and cylinder.
Above-mentioned preparation method applied in the preparation facilities of micro-high purity water, specifically comprise: first water sample opens K1, K8 valve after coming, other valves keep closing, and rinse, and remove air remaining in pipeline to pipeline.Then K2, K3, K5, K6, K7 valve is opened, close K1, K8 valve, main road is rinsed, after stability of flow, start setter 7, regulating setter 7 to run makes the pH of anion-exchange column 2 8.5 ~ 9.0, and carbonic acid gas substantially exists with the form of ion within the scope of this pH, after entering the first mixed post 3, substantially be removed, for ensureing water outlet quality, the utility model has been set up the second mixed post 4 and has been carried out deep desalting, to ensure water outlet quality.When the first mixed post 3 lost efficacy, closed K3, K4, K5 valve, changed resin in exchange column, when the second mixed post 4 lost efficacy, close K5, K6, change resin in exchange column.
The utility model provides a kind of device preparing micro-high purity water easily and efficiently, and the impact of Carbon Dioxide in Air on water outlet quality can be eliminated, can be used for verifying chemical instruments in thermal power plant and, as the verification of specific conductivity table, pH table meter 6, solve the problem of such table meter no parity check benchmark.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a preparation facilities for micro-high purity water, is characterized in that, described preparation facilities comprises: alkali liquor container, anion-exchange column, the first mixed post, the second mixed post;
Described alkali liquor container is connected with described anion-exchange column input terminus;
Described anion-exchange column is connected with water inlet respectively with the described first mixed post input terminus;
Described anion-exchange column output terminal respectively post input terminus mixed with described first is connected with water outlet;
Described first mixed post output terminal is connected with the described second mixed post input terminus;
Described second mixed post output terminal is connected with described water outlet;
Described water inlet is connected with described water outlet.
2. the preparation facilities of micro-high purity water according to claim 1, is characterized in that, described preparation facilities also comprises: on described water outlet, be provided with valve; Valve is provided with between described water inlet and described water outlet; The output terminal of described anion-exchange column, the described first mixed post and the described second mixed post is respectively arranged with valve; The input terminus of described anion-exchange column and the described first mixed post is respectively arranged with valve.
3. the preparation facilities of micro-high purity water according to claim 2, is characterized in that, described preparation facilities also comprises: on described water outlet, the water intake end of valve is also connected with drainage gas port, and described drainage gas port is provided with valve.
4. the preparation facilities of micro-high purity water according to claim 1, it is characterized in that, described preparation facilities also comprises: between described alkali liquor container and described anion-exchange column, pipeline is provided with setter, and described setter exports for the alkali lye controlling described alkali liquor container.
5. the preparation facilities of micro-high purity water according to claim 1, it is characterized in that, described preparation facilities also comprises: described anion-exchange column output terminal is provided with PH table meter, the pH value of described PH table meter for testing described anion-exchange column output liquid.
6. the preparation facilities of micro-high purity water according to claim 3, is characterized in that, described preparation facilities also comprises: on described water outlet and described drainage gas port, the water intake end of valve is provided with under meter, for detecting when preceding pipeline aquifer yield.
7. the preparation facilities of micro-high purity water according to claim 1, is characterized in that, described preparation facilities also comprises: the described first mixed post and the described second mixed post are connected on the preparation facilities of described micro-high purity water by demountable structure.
8. the preparation facilities of micro-high purity water according to claim 1, is characterized in that, the described first mixed post is the combination of positive resin exchange column and negative resin exchange column.
9. the preparation facilities of micro-high purity water according to claim 1, is characterized in that, the described second mixed post is hybrid resin post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583637.8U CN204848358U (en) | 2015-08-05 | 2015-08-05 | Preparation facilities of trace high purity water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583637.8U CN204848358U (en) | 2015-08-05 | 2015-08-05 | Preparation facilities of trace high purity water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204848358U true CN204848358U (en) | 2015-12-09 |
Family
ID=54738930
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000632A (en) * | 2015-08-05 | 2015-10-28 | 华北电力科学研究院有限责任公司 | Trace-amount and high-purity water preparation device and method |
-
2015
- 2015-08-05 CN CN201520583637.8U patent/CN204848358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000632A (en) * | 2015-08-05 | 2015-10-28 | 华北电力科学研究院有限责任公司 | Trace-amount and high-purity water preparation device and method |
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