CN203411366U

CN203411366U - Novel mixed ion exchanger

Info

Publication number: CN203411366U
Application number: CN201320339064.5U
Authority: CN
Inventors: 龚忠有
Original assignee: Chengdu Zhihe Environmental Protection Technology Co Ltd
Current assignee: Chengdu Zhihe Environmental Protection Technology Co Ltd
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2014-01-29
Anticipated expiration: 2023-06-14

Abstract

The utility model discloses a novel mixed ion exchanger and relates to the technical field of ion exchange equipment. The novel mixed ion exchanger comprises a framework (16), wherein a tank body on the framework (16) is divided into a negative bed (4) and a positive bed (2) which are independent from each other; a communication valve (3) is arranged between the negative bed (4) and the positive bed (2); a positive bed water outlet chamber (14) is arranged above the positive bed (2); a negative bed water inlet chamber (13) is arranged below the negative bed (4); an alkali liquor waste valve (7) and an acid inlet valve (6) are arranged on connecting pipes of the communication valve (3) leading out of the negative bed water inlet chamber (13 and the positive bed water outlet chamber (14); a negative-positive mixed-bed exchanger water outlet pipe (15) leading out of a negative bed water outlet filtering device (5) at the top of the negative bed (4) is connected with a control valve (8); the control valve (8) is externally connected with a water inlet pipe (19), a water outlet pipe (18), an acid liquor waste valve (9) and an alkali liquor inlet pipe (10); the control valve can be a multi-way valve of any kind or a plurality of single valves. The novel mixed ion exchanger solves the problems of high cost, large occupied area, high complexity in operation and the like of the conventional similar equipment.

Description

Novel mixed ion exchanger

Technical field

The utility model relates to ion-exchange unit technical field.

Background technology

The positive negative resin of the in-built about 1:2 volume ratio of mixed ion exchanger (claiming again mixed bed), after being connected to yin, yang ion-exchanger or first-stage reverse osmosis, can reach≤0.2us/cm of pure water after one-level mixed bed is processed, SiO2≤20ug/l, can supply the industry waters such as high-temperature high-pressure boiler, electronics, medicine, chemical industry and oil and condensation water recycling to process.On existing mixed ion exchanger tank body, lower cover has Inlet and outlet water filtration unit, should join oilless air compressor outward, during operation, two kinds of resins will be under more mixed uniformly state and work, will be by two kinds of resins separately during regeneration, acid, alkaline regeneration solution are regenerated to two kinds of resins, and the problem of existence is:

1) two kinds of resins will be used oilless air compressor air inlet, carry out gas, liquid, solid and mix mutually, troublesome poeration, for two kinds of mixed with resin of assurance, must get well, the total height of mixed-bed resin layer must not surpass (1.2-1.5) rice, the reduction of resin layer simultaneously, make resin industry and traffic capacity low, make the mixed bed cycle of operation short;

2) after mixed bed lost efficacy, must carry out yin, yang resin isolation, this process has thoroughly been destroyed the inefficacy attitude of resin, and anion regeneration can only adopt co-current regeneration, and the large efficiency of alkali lye consumption is low;

3) inevitably there is resin crossed contamination in yin, yang resin isolation process, directly causes regeneration degree to reduce;

4) regeneration waste liquid existing is inhaled mutually in two kinds of resins, pollutes and reduce the regeneration degree of resin;

5) in technological process, as condensation water recycling, condensed water generally adopts ammonification anticorrosion, makes water become alkalescence (pH value 9.2-9.6).The in the situation that in mixed bed, two kinds of mixed with resin being bad, the water inlet of high pH value first contacts with negative resin, does not only reach the effect of desalination, also likely by the foreign ion displacement in resin out, effluent quality is worsened.

By analysis expert, according to the law of mass action of ion-exchange, in condensed water treatment facility, because the saltiness exchange capacity low and ion of water inlet is little, the solid ion of liquid phase can reach balance within very short time, in the situation that resin is selected, effluent quality is only decided by the regeneration degree of resin and the pH value of water, and it is irrelevant with ion-exchange unit and bed type, also prove by experiment, in the water outlet pH of Hydrogen mixed bed value, be under 7.0 conditions, in ammonium type mixed bed operational process due to the rising (pH value is generally higher than 7.5-9) of pH value, reach same water quality, the latter degree of percent regeneration of resin is required is very high, entering a lot of regenerated liquids just can reach.

Summary of the invention

The utility model provides novel mixed ion exchanger, and the utility model has solved the problems such as the cost of existing same category of device existence is high, and floor space is large, complicated operation.

For addressing the above problem, the utility model adopts following technical scheme: novel mixed ion exchanger, comprise framework (16), and the tank body on framework (16) is divided into upper and lower separate anion bed (4) and cation bed (2); Between cation bed (2) and anion bed (4), be provided with communicating valve (3); Cation bed (2) top is provided with cation bed water-supplying chamber (14), and anion bed (4) below is provided with anion bed intake chamber (13); On the connecting leg of the communicating valve (3) of drawing, there are alkali lye waste valve (7) and acid inlet valve (6) in anion bed intake chamber (13) and cation bed water-supplying chamber (14); On the anion bed effluent water filtering device (5) at anion bed (4) top, lead to negative and positive string bed exchanger water pipe (15), be connected with control valve (8); Under the cation bed interchanger of cation bed (2) bottom, on feeding water filtering device (1), draw negative and positive string bed interchanger water inlet pipe (17), be connected with control valve (8); On control valve (8), there are water inlet pipe (19), rising pipe (18) and acid solution waste pipe (9), the alkali lye of outer connection to enter pipe (10); Control valve (8) can be various multiway valve or a plurality of single valve.

1), yin, yang resin respectively puts a Room advantage of the present utility model:, resin does not exist lamination problem, has saved the hierarchical operations technique of trouble when air compressor machine mixes and regenerates, and does not have the problems such as regenerated liquid crossed contamination, 2), yin, yang bed is independent, attitude in the time of can well keeping efficiency lost resin when regeneration, improves the regeneration degree of resin with counter, reduce regeneration consumption, 3), under the condition that allows in flow resistance, can improve resin layer height, improve resin industry and traffic capacity, extend the cycle of operation, and guaranteed effluent characteristics, 4), water inlet as while be alkaline (pH value 9.2-9.6), because water advanced person is equipped with the cation bed of h type resin, removed ammonia or other alkali lye in water inlet, make the pH value of water drop to 7.0 left and right, the exchange capacity that enters again negative resin after anion bed just improves, to improving effluent quality, the raising cycle of operation is greatly favourable, also under same degree of percent regeneration of resin, adopt cloudy, sun string bed, can obtain than the better water quality of mixed bed, adopt cloudy, sun string bed process, because negative resin does not contact with the water of high pH value, the regeneration degree of resin can suitably reduce, therefore reduced regenerating agent consumption, reduced blowdown flow rate, improved the economy of operation, counter-current regeneration, enter one and reduce regenerating agent consumption, 5), yin, yang string bed structure is simple, without in row and enter alkali device, mix various control valves, with PLC, automatically control, not easy-operating mixed bed just becomes general floating bed operation, 6), yin, yang string bed is just as mixed bed, the engineering of original mixed bed design need not be changed design, 7), the one-level desalination duplicate bed that is connected in series with yin, yang bed of yin, yang string bed performance, but compare with multiple bed, its cost is low, floor space is little, operates simpler.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Fig. 2 is the right view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1.

Nomenclature in figure: under cation bed interchanger, feeding water filtering device (10; Cation bed (2); Communicating valve (3); Anion bed (4); Anion bed effluent water filtering device (5); Acid inlet valve (6); Alkali lye waste valve (7); Control valve (8); Acid solution waste pipe (9); Alkali lye enters pipe (10); Anion bed feeding water filtering device (11); Cation bed effluent water filtering device (12); Anion bed intake chamber (13); Cation bed water-supplying chamber (14); Negative and positive string bed exchanger water pipe (15); Framework (16); Negative and positive string bed interchanger water inlet pipe (17); Rising pipe (18); Water inlet pipe (19).

Embodiment

With best embodiment, the utility model is described in detail below .

As shown in Figure 1-Figure 3, novel mixed ion exchanger, comprises framework (16), and the tank body on framework (16) is divided into upper and lower separate anion bed (4) and cation bed (2); Between cation bed (2) and anion bed (4), be provided with communicating valve (3); Cation bed (2) top is provided with cation bed water-supplying chamber (14), and anion bed (4) below is provided with anion bed intake chamber (13); On the connecting leg of the communicating valve (3) of drawing, there are alkali lye waste valve (7) and acid inlet valve (6) in anion bed intake chamber (13) and cation bed water-supplying chamber (14); On the anion bed effluent water filtering device (5) at anion bed (4) top, lead to negative and positive string bed exchanger water pipe (15), be connected with control valve (8); Under the cation bed interchanger of cation bed (2) bottom, on feeding water filtering device (1), draw negative and positive string bed interchanger water inlet pipe (17), be connected with control valve (8); On control valve (8), there are water inlet pipe (19), rising pipe (18) and acid solution waste pipe (9), the alkali lye of outer connection to enter pipe (10); Control valve (8) can be various multiway valve or a plurality of single valve.

Technical process of the present utility model:

Move water processed, communicating valve 3 is opened, water enters control valve 8 by water inlet pipe 19, and flow out and enter cation bed 2 from control valve 8 negative and positive string bed interchanger water inlet pipes 17, under cation bed interchanger, feeding water filtering device 1 enters the exchange of people's resin layer, water after exchange flows out through cation bed effluent water filtering device 12 cation bed water-supplying chamber 14, by communicating valve 3, enter the anion bed intake chamber 13 of anion bed 4, by anion bed feeding water filtering device 11, entering people's resin layer exchanges, water after exchange flows to control valve 8 through anion bed effluent water filtering device 5 negative and positive string bed exchanger water pipes 15, and flow out from the rising pipe 18 of control valve 8,

Regeneration: communicating valve 3 closes, regeneration alkali lye enters pipe 10 by alkali lye and enters control valve 8, and flow out from control valve 8, by negative and positive string bed exchanger water pipe 15, enter anion bed effluent water filtering device 5 and enter people's anion exchange resin layer, the waste liquid after exchange enters people's anion bed intake chamber 13 through anion bed feeding water filtering device 11 and drains from alkali lye waste valve 7; Regeneration acid solution enters cation bed water-supplying chamber 14 by acid inlet valve 6, cation bed effluent water filtering device 12 enters human cation exchange resin layer, waste liquid after exchange feeding water filtering device 1 under cation bed interchanger flows to control valve 8 by negative and positive string bed interchanger water inlet pipe 17, by control valve 8 acid solution waste pipes 9, is discharged.

Displacement, cleaning path are with regenerated liquid path; Regenerated liquid, displacement, wash liquid stream, to reverse with operation, have realized the technical process of counter-current regeneration floating bed.

Finally it should be noted that: obviously, above-described embodiment is only for the utility model example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being amplified out thus or change are still among protection domain of the present utility model.

Claims

1. novel mixed ion exchanger, is characterized in that, comprises framework (16), and the tank body on framework (16) is divided into upper and lower separate anion bed (4) and cation bed (2); Between cation bed (2) and anion bed (4), be provided with communicating valve (3); Cation bed (2) top is provided with cation bed water-supplying chamber (14), and anion bed (4) below is provided with anion bed intake chamber (13); On the connecting leg of the communicating valve (3) of drawing, there are alkali lye waste valve (7) and acid inlet valve (6) in anion bed intake chamber (13) and cation bed water-supplying chamber (14); On the anion bed effluent water filtering device (5) at anion bed (4) top, lead to negative and positive string bed exchanger water pipe (15), be connected with control valve (8); Under the cation bed interchanger of cation bed (2) bottom, on feeding water filtering device (1), draw negative and positive string bed interchanger water inlet pipe (17), be connected with control valve (8); On control valve (8), there are water inlet pipe (19), rising pipe (18) and acid solution waste pipe (9), the alkali lye of outer connection to enter pipe (10); Control valve (8) can be various multiway valve or a plurality of single valve.