CN110589932A - Special resin for generator inner cooling water - Google Patents
Special resin for generator inner cooling water Download PDFInfo
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- CN110589932A CN110589932A CN201811267101.XA CN201811267101A CN110589932A CN 110589932 A CN110589932 A CN 110589932A CN 201811267101 A CN201811267101 A CN 201811267101A CN 110589932 A CN110589932 A CN 110589932A
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- resin
- ion exchange
- exchange resin
- macroporous
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention discloses a special resin for cold water in a generator, which comprises bed chamber A resin, bed chamber B resin, bed chamber C resin and bed chamber D resin, wherein the bed chamber resin is formed by mixing different resins in a certain proportion, and the special advantages of the resins are exerted. Compared with the traditional single resin, the product can quickly reduce the influence of carbon dioxide on the water quality of the chilled water, improve the pH value to a greater extent, obviously increase the service cycle of the resin, and prompt that the resin is about to fail by reducing the water quality to a small extent at the end of the service cycle of the resin.
Description
Technical Field
The invention relates to a special resin used by cold water separate bed treatment equipment in a generator of a thermal power plant, belonging to the field of water treatment in environmental technology.
Background
At present, the national standard control value of the quality of cold water in a large-scale generator requires that the electrical conductivity is less than or equal to 2.0 MuS/cm, the pH value is 8.0-8.9, and the copper is less than or equal to 20 Mug/L (GB/T12145-2016). In fact, the pH value of the internal cooling water is 8.3 to 8.7, and the corrosion rate of copper is the lowest, so the standard further suggests that the pH value is expected to be 8.3 to 8.7.
In the prior art, a relatively common and safe method is to adopt a bed separation treatment technology of ion exchange resin to treat cold water in a generator. Most power plants use single ion exchange resin for treatment, the pH value can reach above 8.0 under the condition that the sealing of the internal cooling water circulation system of the generator is tight, but the pH value of the internal cooling water is difficult to reach above 8 under the influence of carbon dioxide under the condition that the sealing of the internal cooling water circulation system of the generator is poor.
For a double-water internal cooling unit, although the industrial standard of the water quality of internal cooling water is wider: the conductivity is less than 5 mu S/cm, the pH value is 7.0-9.0, and the copper content is less than or equal to 40 mu g/L, but the influence of a large amount of carbon dioxide is inevitable due to the structural problem of an internal cooling water system, the pH value is difficult to keep above 7.0 by the treatment of single ion exchange resin, and the serious standard exceeding of copper ions is caused.
With the continuous development of science and technology, ion exchange resins are more and more in types and play different roles, so that it is necessary to develop a new type of ion exchange resin which is mixed with different types of resins at a certain ratio and exerts the respective advantages of the resins.
Disclosure of Invention
The invention aims to provide different resins which are mixed together in a certain proportion and are specially used for generator inner-cooling water bed treatment equipment, so that inner-cooling water under generator inner-cooling water circulation systems with different working conditions can stably reach the optimal water quality (namely the pH value is 8.3-8.6), the service cycle of the resins is greatly and effectively prolonged to two years or more than two years from the original one year.
In order to achieve the purpose, the invention provides the following technical scheme that the special resin for the cold water in the generator comprises bed chamber A resin, bed chamber B resin, bed chamber C resin and bed chamber D resin, and further comprises the following resins: macroporous strong-acid styrene sodium ion exchange resin, macroporous strong-acid styrene hydrogen ion exchange resin, macroporous weak-acid acrylic acid sodium ion exchange resin, macroporous weak-acid acrylic acid hydrogen ion exchange resin, macroporous strong-base styrene hydroxide ion exchange resin and macroporous weak-base styrene hydroxide ion exchange resin.
In the special resin for cooling water in a generator, the bed chamber a resin accounts for 30% of the macroporous weakly acidic acrylic acid series hydrogen ion exchange resin and 70% of the macroporous strongly acidic styrene series hydrogen ion exchange resin, relative to the total volume of the resin, for a generator set cooled in water-hydrogen; for a double-water internal cooling generator set, relative to the total volume of the resin, the proportion of the macroporous weak-acid acrylic acid series hydrogen ion exchange resin is 70%, and the proportion of the macroporous strong-acid styrene series hydrogen ion exchange resin is 30%.
In the aforementioned special resin for cooling water in an electric generator, for the electric generator set cooled in water-hydrogen, the proportion of the macroporous weakly basic styrene type hydroxide ion exchange resin is 10% and the proportion of the macroporous strongly basic styrene type hydroxide ion exchange resin is 90% relative to the total volume of the resin; for a double-water internal cooling generator set, relative to the total volume of the resin, the proportion of the macroporous weak-base styrene type hydroxide ion exchange resin is 50%, and the proportion of the macroporous strong-base styrene type hydroxide ion exchange resin is 50%.
In the special resin for cooling water in a generator, the bed C resin accounts for 10% of the macroporous weakly acidic acrylic acid sodium ion exchange resin and 90% of the macroporous strongly acidic styrene sodium ion exchange resin, relative to the total volume of the resin, for a generator set cooled in water-hydrogen; for a double-water internal cooling generator set, relative to the total volume of the resin, the proportion of the macroporous weak-acid acrylic acid series sodium ion exchange resin is 40%, and the proportion of the macroporous strong-acid styrene series sodium ion exchange resin is 60%.
In the aforementioned special resin for cooling water in an electric generator, for a generator set cooled in water-hydrogen, the proportion of the macroporous strongly acidic styrene sodium ion exchange resin is 15% and the proportion of the macroporous strongly basic styrene hydroxide ion exchange resin is 85% relative to the total volume of the resin; for a double-water internal cooling generator set, relative to the total volume of the resin, the proportion of the macroporous strong-acid styrene sodium ion exchange resin is 20%, and the proportion of the macroporous strong-base styrene hydroxide ion exchange resin is 80%.
In the special resin for cooling water in the generator, the bed chamber A resin, the bed chamber B resin, the bed chamber C resin and the bed chamber D resin are all uniformly mixed by using compressed air.
Compared with the existing single resin, the invention has the beneficial effects that:
1. the alkalinity of the internal cooling water can be reduced, and even if the internal cooling water circulation system of the generator is not tightly sealed, the pH value of the internal cooling water is not reduced due to the carbon dioxide, so that the effect of the generator set with double water internal cooling is particularly obvious;
2. the exchange effect of the ion exchange resin is enhanced, so that the pH value of the internal cooling water can be higher;
3. the exchange capacity of the ion exchange resin is increased, so that the service cycle of the resin is doubled;
4. when most of the resin is invalid, the small-degree reduction of the water quality of the small-degree non-invalid resin prompts that the whole resin is about to be invalid (the quality of the internal cooling water is still qualified), the buffering time of the water-hydrogen internal cooling water unit can be more than one month, and the waste caused by the replacement of the resin in advance is avoided.
Drawings
FIG. 1 is a schematic view of the various bed chambers of the resin special for cooling water in a generator according to the present invention;
in the figure: 1. a bed chamber resin; 2. b bed chamber resin; 3. bed C resin; 4. d bed chamber resin.
Detailed Description
The present invention will be described in detail below by way of specific examples. However, the following examples are for illustrative purposes only and are not intended to limit the present invention.
Preparation example
The special resin for the cold water in the generator comprises a bed chamber resin A1, a bed chamber resin B2, a bed chamber resin C3 and a bed chamber resin D4, and further comprises the following resins: the bed chamber A resin 1 consists of macroporous weakly acidic acrylic acid series hydrogen ion exchange resin and macroporous strongly acidic styrene series hydrogen ion exchange resin, for the generator set cooled in the water-hydrogen, relative to the total volume of the resin, the proportion of the macroporous weakly acidic acrylic acid series hydrogen ion exchange resin is 30%, and the proportion of the macroporous strongly acidic styrene series hydrogen ion exchange resin is 70%; the B bed chamber resin 2 consists of macroporous weakly-alkaline styrene type hydroxide ion exchange resin and macroporous strongly-alkaline styrene type hydroxide ion exchange resin, for the generator set cooled in water-hydrogen, relative to the total volume of the resin, the proportion of the macroporous weakly-alkaline styrene type hydroxide ion exchange resin is 10%, and the proportion of the macroporous strongly-alkaline styrene type hydroxide ion exchange resin is 90%; the bed C chamber resin 3 consists of macroporous weakly acidic acrylic acid series sodium ion exchange resin and macroporous strongly acidic styrene series sodium ion exchange resin, for the generator set cooled in water-hydrogen, relative to the total volume of the resin, the proportion of the macroporous weakly acidic acrylic acid series sodium ion exchange resin is 10%, and the proportion of the macroporous strongly acidic styrene series sodium ion exchange resin is 90%; the D bed chamber resin 4 consists of macroporous strong acid styrene series sodium ion exchange resin and macroporous strong base styrene series hydroxyl ion exchange resin, for the generator set cooled in water hydrogen, relative to the total volume of the resin, the proportion of the macroporous strong acid styrene series sodium ion exchange resin is 15 percent, and the proportion of the macroporous strong base styrene series hydroxyl ion exchange resin is 85 percent; bed chamber A resin 1, bed chamber B resin 2, bed chamber C resin 3 and bed chamber D resin 4 are all uniformly mixed by using compressed air.
Examples
The effect comparison of the special resin for the generator internal cooling water prepared by the formula in the preparation example on internal cooling water bed treatment equipment of a power plant (water-hydrogen internal cooling mode) #1 generator with the original single resin is as follows:
TABLE 1
Remarking: the data in the table are the average data after stabilization.
As can be seen from the data in Table 1, under the same working condition of the same unit, compared with the prior single resin, the special resin used by the cold moisture bed treatment equipment in the generator obviously better meets the requirement of expected value although the special resin is within the control value range, and the service cycle of the resin is more than twice longer than that of the prior single resin.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. The special resin for the cold water in the generator comprises a bed chamber resin A (1), a bed chamber resin B (2), a bed chamber resin C (3) and a bed chamber resin D (4), and further comprises the following resins: macroporous strong-acid styrene sodium ion exchange resin, macroporous strong-acid styrene hydrogen ion exchange resin, macroporous weak-acid acrylic acid sodium ion exchange resin, macroporous weak-acid acrylic acid hydrogen ion exchange resin, macroporous strong-base styrene hydroxide ion exchange resin and macroporous weak-base styrene hydroxide ion exchange resin.
2. The special resin for the cold water in the generator as claimed in claim 1, wherein: the bed chamber A resin (1) consists of macroporous weak-acidic acrylic acid series hydrogen ion exchange resin and macroporous strong-acidic styrene series hydrogen ion exchange resin, for the generator set cooled in water hydrogen, relative to the total volume of the resin, the proportion of the macroporous weak-acidic acrylic acid series hydrogen ion exchange resin is 30%, and the proportion of the macroporous strong-acidic styrene series hydrogen ion exchange resin is 70%; for a double-water internal cooling generator set, relative to the total volume of the resin, the proportion of the macroporous weak-acid acrylic acid series hydrogen ion exchange resin is 70%, and the proportion of the macroporous strong-acid styrene series hydrogen ion exchange resin is 30%.
3. The special resin for the cold water in the generator as claimed in claim 1, wherein: the B bed chamber resin (2) consists of macroporous weakly-alkaline styrene type hydroxide ion exchange resin and macroporous strongly-alkaline styrene type hydroxide ion exchange resin, for the generator set cooled in water hydrogen, relative to the total volume of the resin, the proportion of the macroporous weakly-alkaline styrene type hydroxide ion exchange resin is 10%, and the proportion of the macroporous strongly-alkaline styrene type hydroxide ion exchange resin is 90%; for a double-water internal cooling generator set, relative to the total volume of the resin, the proportion of the macroporous weak-base styrene type hydroxide ion exchange resin is 50%, and the proportion of the macroporous strong-base styrene type hydroxide ion exchange resin is 50%.
4. The special resin for the cold water in the generator as claimed in claim 1, wherein: the bed room C resin (3) consists of macroporous weakly acidic acrylic acid series sodium ion exchange resin and macroporous strongly acidic styrene series sodium ion exchange resin, for the generator set cooled in water-hydrogen, relative to the total volume of the resin, the proportion of the macroporous weakly acidic acrylic acid series sodium ion exchange resin is 10%, and the proportion of the macroporous strongly acidic styrene series sodium ion exchange resin is 90%; for a double-water internal cooling generator set, relative to the total volume of the resin, the proportion of the macroporous weak-acid acrylic acid series sodium ion exchange resin is 40%, and the proportion of the macroporous strong-acid styrene series sodium ion exchange resin is 60%.
5. The special resin for the cold water in the generator as claimed in claim 1, wherein: the D bed room resin (4) consists of macroporous strong acid styrene sodium ion exchange resin and macroporous strong base styrene hydroxyl ion exchange resin, and for the generator set cooled in water hydrogen, relative to the total volume of the resin, the proportion of the macroporous strong acid styrene sodium ion exchange resin is 15 percent, and the proportion of the macroporous strong base styrene hydroxyl ion exchange resin is 85 percent; for a double-water internal cooling generator set, relative to the total volume of the resin, the proportion of the macroporous strong-acid styrene sodium ion exchange resin is 20%, and the proportion of the macroporous strong-base styrene hydroxide ion exchange resin is 80%.
6. The special cooling water resin for generators as claimed in any one of claims 2 to 5, wherein: the bed chamber A resin (1), the bed chamber B resin (2), the bed chamber C resin (3) and the bed chamber D resin (4) are all uniformly mixed by using compressed air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267101.XA CN110589932B (en) | 2018-10-29 | 2018-10-29 | Special resin for generator inner cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267101.XA CN110589932B (en) | 2018-10-29 | 2018-10-29 | Special resin for generator inner cooling water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110589932A true CN110589932A (en) | 2019-12-20 |
| CN110589932B CN110589932B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811267101.XA Active CN110589932B (en) | 2018-10-29 | 2018-10-29 | Special resin for generator inner cooling water |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4336166A (en) * | 1981-02-13 | 1982-06-22 | National Starch And Chemical Corporation | Cold water resistant adhesive |
| KR20040021103A (en) * | 2002-09-02 | 2004-03-10 | 웅진코웨이개발 주식회사 | Soft water tank |
| CN200962553Y (en) * | 2007-02-13 | 2007-10-17 | 李筠 | Cold water efficient flexible adjusting device inside the generator |
| CN102040694A (en) * | 2009-10-09 | 2011-05-04 | 南京工业大学 | Preparation method of sulfonated polystyrene strong acid type cation exchange resin |
| CN202576121U (en) * | 2012-03-16 | 2012-12-05 | 广州圣安环保科技有限公司 | Cold water quality stabilizing device in power generator |
| CN203890098U (en) * | 2014-06-17 | 2014-10-22 | 广州圣安环保科技有限公司 | Generator internal-cooling water quality stable optimizing device |
| CN107233933A (en) * | 2017-05-09 | 2017-10-10 | 安徽皖东化工有限公司 | A kind of preparation method of water body purification styrenic anion exchanger resin |
-
2018
- 2018-10-29 CN CN201811267101.XA patent/CN110589932B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4336166A (en) * | 1981-02-13 | 1982-06-22 | National Starch And Chemical Corporation | Cold water resistant adhesive |
| KR20040021103A (en) * | 2002-09-02 | 2004-03-10 | 웅진코웨이개발 주식회사 | Soft water tank |
| CN200962553Y (en) * | 2007-02-13 | 2007-10-17 | 李筠 | Cold water efficient flexible adjusting device inside the generator |
| CN102040694A (en) * | 2009-10-09 | 2011-05-04 | 南京工业大学 | Preparation method of sulfonated polystyrene strong acid type cation exchange resin |
| CN202576121U (en) * | 2012-03-16 | 2012-12-05 | 广州圣安环保科技有限公司 | Cold water quality stabilizing device in power generator |
| CN203890098U (en) * | 2014-06-17 | 2014-10-22 | 广州圣安环保科技有限公司 | Generator internal-cooling water quality stable optimizing device |
| CN107233933A (en) * | 2017-05-09 | 2017-10-10 | 安徽皖东化工有限公司 | A kind of preparation method of water body purification styrenic anion exchanger resin |
Non-Patent Citations (1)
| Title |
|---|
| 李学鸿等: "普通阴阳离子交换器改造为双层床", 《工业水处理》 * |
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| CN110589932B (en) | 2021-11-02 |
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