CN2033005U - Double-current weak acid resin hydrogen ion-exchanger - Google Patents
Double-current weak acid resin hydrogen ion-exchanger Download PDFInfo
- Publication number
- CN2033005U CN2033005U CN88203310U CN88203310U CN2033005U CN 2033005 U CN2033005 U CN 2033005U CN 88203310 U CN88203310 U CN 88203310U CN 88203310 U CN88203310 U CN 88203310U CN 2033005 U CN2033005 U CN 2033005U
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- water
- captation
- exchanger
- double
- interchanger
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- Expired - Lifetime
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- Treatment Of Water By Ion Exchange (AREA)
Abstract
A Double-current weak acid resin hydrogen ion-exchanger is characterized in that a captation whose water productivity is two times than the prime exchanger's is arranged in the middle of resin beds of current h-ion exchanger. When the utility model works, water goes into from the top and the bottom of the exchanger simultaneously, two strands of water respectively flow across weak acid resin beds on and under the captation, and the water is merged and delivered at the captation after removal of majority carbonate hardness. At the time of regeneration, acid liquor flows across the entire backwashed resin beds from up to down. The utility model has the advantages of low investment, small occupation of land, and nearly neutral waste liquid.
Description
The utility model belongs to water-treatment technology field
In industry such as electric power, chemical industry, oil, the water consumption of large-scale recirculating cooling water system is huge.In the area of shortage of fresh water, the scale of factory often is subjected to the restriction of water resources.In this case, in order to improve the utilization ratio of water, must in recirculating cooling water system, adopt higher cycles of concentration, and recirculated water or its supplementary feed are carried out certain processing, in case in system, particularly on heat-transfer surface, generate incrustation scale.
Adopting weakly acidic cation-exchange resin that the recirculated water supplementary feed is carried out the hydrogen ion exchange, to reduce scale forming matter---the content of carbonate hardness in the water, is a kind of treatment process that can take at present.(see " water supply and drainage design manual " that China Construction Industry Press 1986 publishes the 4th " industrial water supply processing ")
Compare with other method, weakly acidic resin hydrogen ion exchange process is reliable, and the concentration rate that can reach is the highest.Therefore, although its initial cost is huge.In the area of special lack of water, often have to adopt.In recent years, in power plant such as second power station, Datong District, the circulating water system treatment system (hereinafter to be referred as the weak acid resin circular water treating system) that the weakly acidic resin H-ion exchanger is housed puts into operation in succession, newly-built and the enlarging power plant of other is then designing or is installing this system.
Because the investment of weak acid resin circular water treating system is huge, therefore, if can make its investment reduce percentum, just can produce very big economic benefit.Power station with two 200,000 kilowatt of is an example, and every design cycle water yield is 20000 meters3In/time, is if the make up water rate is that 3%, two machine per hour needs 1200 meters of make up water
3, this generally needs eight of the interchangers of eight maximum diameters 3 meters (or 3.2 meters), adorns 1.2 meters weak acid resin layers in interior, and the initial cost of full cycle water supplementary feed treatment system needs 4,000,000 yuan approximately.As reduce initial cost 10%, just can save 400,000 yuan.
Reduce the investment of this treatment system, its range of application is enlarged, and bring social benefits such as saving water resources and minimizing environmental pollution.
The utility model mainly designs for the investment that reduces the weak acid resin circular water treating system.It has adopted double-current method mechanical filter (" thermal power plant's water treatment " first volume that the sharp electric power of water breakthrough press published in 1984) and the mixed bed of double-current method (to see " power construction " nineteen eighty-two supplementary issue 1,65～73 pages) design philosophy, in the cylindrical shell (3) (referring to accompanying drawing) of downflow system H-ion exchanger, be divided into a middle captation (6) the weak acid resin layer (5) that height is about 2 meters, following two parts, during work, processed water enters interchanger by top water feed apparatus (2) and bottom water feed apparatus (8) simultaneously, two strands of water upper and lower resin layer of flowing through respectively, carry out following ion exchange reaction, play the effect of removing or reducing carbonate hardness in the water.
Two strands of water that exchanged are sent after middle captation converges.
The regeneration step and the co-current regeneration H-ion exchanger of double-current method weak acid resin interchanger are basic identical.Whole resin layer is carried out backwash at first from bottom to top.Then, advance acid by regenerated liquid distribution apparatus (4).Make the regenerated liquid whole resin layer of flowing through from top to bottom, finish following regeneration permutoid reaction.
Regeneration waste liquid is then discharged by the bottom.After acid has been advanced, replace by the water inlet of regenerated liquid distribution apparatus.After the displacement, whole resin layer is just washed by the water inlet of top water feed apparatus.Displacement and the waste liquid of just washing are discharged by the bottom.
Just washing qualified after, interchanger changes double-current method operation over to, begins to make water.
It is conspicuous adopting the benefit of double-current method interchanger in the weak acid resin circular water treating system.Owing in fact two about 1 meter high resin layers are arranged in parallel running in this interchanger, an interchanger can play the effect of two interchangers, and the table of equipment number reduces by half in the system so can make, thereby significantly reduces facility investment and floor space.
Adopt another advantage of double-current method weak acid resin interchanger to be, can further improve the regenerator utilization ratio, reduce the acidity of regeneration waste liquid.Make it more approaching neutrality.This be because when regeneration the acid solution exhausted resin layer height of flowing through increase about one times, can make above-mentioned regeneration permutoid reaction carry out more thoroughly.
Double-current method interchanger shown in the accompanying drawing also can be realized the single current operation, and its working method is: close bottom water intaking valve (14) and outlet valve (10), open standby single current outlet valve (16).Double-current method weak acid resin interchanger can be produced by water treating equipment factory or the typing of boiler accessory machinery factory, and also available existing installation repacking is installed and used for the weak acid resin circular water treating system.
Double-current method weak acid resin interchanger also can be used for removing in the softening or chemical deionization water treatment system of alkali.
In the accompanying drawing: 1 is vapor pipe; 2 is the top water feed apparatus; 3 is the interchanger cylindrical shell; 4 is the regenerated liquid distribution apparatus; 5 is the weakly acidic cation-exchange resin layer; 6 is middle captation; 7 is quartz sand thickness; 8 is the bottom water feed apparatus; 9 is acid inlet valve; 10 is outlet valve; 11 is vent valve; 12 is the top water intaking valve; 13 are the backwash water discharge valve; 14 is the bottom water intaking valve; 15 for regenerating and just washing water discharge valve; 16 is standby single current outlet valve; 17 is acid inlet tube; 18 is water shoot; 19 is rising pipe; 20 is water inlet pipe.
Claims (2)
1, a kind of double-current method weakly acidic resin H-ion exchanger that uses in water treatment is equipped with vapor pipe [1], top water feed apparatus [2], regenerated liquid distribution apparatus [4], weakly acidic cation-exchange resin layer [5], captation [6], quartz sand thickness [7] and bottom water feed apparatus [8] from top to bottom in its simplified [3].It is characterized in that: described captation is positioned at the resin layer middle part, during work, water enters interchanger simultaneously by top water feed apparatus and bottom water feed apparatus, and two strands of water are flowed through respectively behind the above and following resin layer of captation, converges and sends interchanger at captation.
2, double-current method weakly acidic resin interchanger as claimed in claim 1, it is characterized in that: can be between the rising pipe (19) of described interchanger and bottom water inlet pipe dress a connecting pipe road, the design discharge of pipeline equals the top flooding velocity, and is provided with a valve (16) on connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88203310U CN2033005U (en) | 1988-02-01 | 1988-02-01 | Double-current weak acid resin hydrogen ion-exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88203310U CN2033005U (en) | 1988-02-01 | 1988-02-01 | Double-current weak acid resin hydrogen ion-exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2033005U true CN2033005U (en) | 1989-02-22 |
Family
ID=4838148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88203310U Expired - Lifetime CN2033005U (en) | 1988-02-01 | 1988-02-01 | Double-current weak acid resin hydrogen ion-exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2033005U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045728C (en) * | 1993-09-23 | 1999-10-20 | 张澄信 | multi-flow ion exchanger |
| CN100337748C (en) * | 2001-06-04 | 2007-09-19 | 罗姆和哈斯公司 | Weak-acid cation exchange resin preparation |
-
1988
- 1988-02-01 CN CN88203310U patent/CN2033005U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045728C (en) * | 1993-09-23 | 1999-10-20 | 张澄信 | multi-flow ion exchanger |
| CN100337748C (en) * | 2001-06-04 | 2007-09-19 | 罗姆和哈斯公司 | Weak-acid cation exchange resin preparation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |