CN105236528A - Novel chloramine adding system device and adding method thereof - Google Patents
Novel chloramine adding system device and adding method thereof Download PDFInfo
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- CN105236528A CN105236528A CN201510636090.8A CN201510636090A CN105236528A CN 105236528 A CN105236528 A CN 105236528A CN 201510636090 A CN201510636090 A CN 201510636090A CN 105236528 A CN105236528 A CN 105236528A
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- bypass pipe
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Abstract
The invention relates to the technical field of water treatment and disinfection, and especially relates to a novel chloramine adding system device and an adding method thereof. In the novel chloramine adding system device, a production pipeline is parallelly connected to a bypass pipe; the flowing direction of the bypass pipe is the same as that of the production pipeline; along the flowing direction of the bypass pipe, the primary section is provided with an adjusting valve; after the adjusting valve, multiple adding openings are arranged in sequence; and the adding openings are communicated with a solution barrel. The adding method comprises the following steps: setting the flows of the bypass pipe and production pipeline; and then adding an ammonium chloride solution. According to the provided adding system device and adding method thereof, the reactions between sodium hypochlorite and ammonium chloride are carried out in the bypass pipe, the flow of the bypass pipe is only 5 to 10% of that of the production pipeline, in one aspect, the reactants can be more quickly and evenly dispersed in less water amount, in another aspect, the concentration of reactants in the bypass pipe is increased by 10 to 20 times, compared with the conventional method; in the conventional method, the concentration of reactants is not even, thus dichloramine, trichloramine, or other irritant gas will be generated, and the provided method avoided the phenomenon mentioned above.
Description
Technical field
The present invention relates to Water Disinfection technology, particularly relate to a kind of novel chloramines adding system device and put-on method thereof.
Background technology
In water technology, chloramines (also claims monochloro amine, NH
2cl, lower with) sterilization is one of common disinfection technology.Because the preparation of chloramine solution is comparatively difficult, and its concentration can be able to be caused to decline to a great extent by the disproportionation reaction of chloramines self in storage process, therefore generally adopt in the application of reality and in water, first add ammonia (liquefied ammonia) or directly utilize itself contained ammonia in water, and then Xiang Shuizhong adds the mode of chlorine, reacted in water by ammonia and chlorine and generate chloramines thus play disinfection.
But the condition that chlorine and ammonia react generate chloramines is comparatively harsh:
First, (refer to mass concentration, wherein chlorine is with Cl for the concentration ratio of chlorine and ammonia
2meter, ammonia is in N) must 5:1 be strict controlled within.And when chlorine ammonia ratio is more than 5:1, just there will be breakpoint chlorination reaction, thus cause available chlorine content to decline, generate a large amount of dichlormaine (NHCl simultaneously
2), three chloramines (also claim nitrogen trichloride, NCl
3) etc. there is the material of irritating smell, thus affect drinking-water quality.And add in process in reality, even if the chlorine nitrogen controlling to add is than within 5:1, restriction due to existing hybrid technology is difficult to realize the moment of chlorine after adding and is diffused into whole water body equably, thus can make to occur that chlorine ammonia is than the situation being greater than 5:1 in water body local, also can cause and occur in the local of water body the situation that breakpoint chlorination reacts, and and then cause available chlorine content reduce and have the dichlormaine of irritating smell and the generation of three chloramines in a large number.
Secondly, the pH value condition that chlorine and ammonia react generate chloramines requires to be greater than 8, and now chloramines is the dominant species of available chlorine, and its content accounts for more than 90% of total available chlorine.And in acid condition, dichlormaine is the main special type of available chlorine, as pH=4, its content can account for 75% of available chlorine, and the ratio of chloramines is then only about 10%.Because the pH value for effluent quality in water treatment procedure has strict requirement, (general sewage requires pH=6 ~ 9, Drinking Water then requires pH=6.5 ~ 8.5), in chloramines disinfection process, therefore increase the risk that pH regulator process very easily causes effluent quality to exceed standard.
Finally, generally a certain amount of itrogenous organic substance can be there is in water.Itrogenous organic substance also can react with chlorine and generate and not have disinfection or the very weak organic chloramines of disinfecting power.And itrogenous organic substance and chlorine react speed of response comparatively fast more than 10 ~ 100 times of the chloramines generating organic chloramines, therefore it can be competed with the ammonia in water and react, thus reduces available chlorine content.In addition, itrogenous organic substance also can react with chlorine the nitrogenous disinfection byproducts generating and have three-induced effect, as trichloronitromethane, chloro nitrile etc.
Summary of the invention
The present invention is directed to above-mentioned deficiency and provide a kind of novel chloramines adding system device and put-on method thereof.The present invention is mainly applicable to various needs in the water treatment procedure utilizing chloramines to carry out disinfection.
The present invention adopts following technical scheme:
The novel chloramines adding system device of one of the present invention: comprise production pipeline, bypass pipe, variable valve, dosing mouth, solution tank; Described production pipeline bypass pipe in parallel; In bypass pipe, water (flow) direction is consistent with production pipeline; The first fragment position in direction that flows to of bypass pipe is provided with variable valve; Several dosing mouths are arranged successively after variable valve; Dosing mouth is connected with solution tank by vacuum breaker, under meter, volume pump etc.
Novel chloramines adding system device of the present invention: also comprise vacuum breaker, under meter, volume pump; Described vacuum breaker, under meter and volume pump are connected between dosing mouth and solution tank.
Novel chloramines adding system device of the present invention: the bypass pipe after several described dosing mouths arranges tubular static mixer.
Novel chloramines adding system device of the present invention: described dosing mouth is three.
The put-on method of novel chloramines adding system device, step is as follows:
1), arranging flow in bypass pipe is produce pipeline flow 5 ~ 10%;
2), (interior edge flows to direction and adds ammonium chloride solution, sodium hydroxide solution and chlorine bleach liquor successively dosing mouth;
3), medicament adds after carrying out accurate-metering by volume pump, and checks its flow by under meter.
The put-on method of novel chloramines adding system device of the present invention, in ammonium chloride solution, ammonium chloride solution concentration is 1 ~ 5g/L, and concentration of sodium hydroxide solution is 5 ~ 10%.
The put-on method of novel chloramines adding system device of the present invention, described ammonium chloride solution concentration is preferably 2g/L; Concentration of sodium hydroxide solution is preferably 5%.
The put-on method of novel chloramines adding system device of the present invention, the described chlorine bleach liquor added adds than being 3 ~ 4:1 with ammonium chloride solution.
The put-on method of described novel chloramines adding system device of the present invention, the described sodium hydroxide solution added makes pH=8 ~ 10 of bypass in-pipe flow.
The put-on method of novel chloramines adding system device of the present invention, the described chlorine bleach liquor added preferably adds than being 4:1 with ammonium chloride solution; The sodium hydroxide solution added makes the preferred pH=8.5 of bypass in-pipe flow.
Beneficial effect
Novel chloramines adding system device provided by the invention and put-on method thereof, the reaction of clorox and ammonium chloride is aside carried out in siphunculus, and in bypass pipe, flow is only and produces 5 ~ 10% of pipeline flow.The less water yield is conducive to the Quick uniform dispersion of medicament on the one hand, the Quick uniform dispersion of medicament in bypass pipe can be realized by existing static mixer, on the other hand in bypass pipe drug concentration as compared with the past sterilization method improve 10 ~ 20 times, eliminate the different impact brought of the topical agent concentration caused owing to mixing inequality to a great extent, effectively prevent the generation of dichlormaine, three chloramines or other irritating smell.
The tubular static mixer arranged after each dosing mouth more enhances the Quick uniform dispersion of various medicament in water, further avoid the generation of dichlormaine, three chloramines or other irritating smell brought with the topical agent density unevenness firmly caused because medicament can not disperse in time.
Because adding of sodium hydroxide can ensure that clorox and ammonium chloride carry out under optimum pH condition, also control the generation of dichlormaine, three chloramines further.And also need due to bypass in-pipe flow and produce a large amount of current in pipeline and mix, can the pH value of water outlet be controlled within desired water quality standard, substantially there is not the problem that water outlet pH exceeds standard.
Because clorox only adds in bypass pipe, decrease the reaction of itrogenous organic substance in clorox and water, thus decrease the generation of the irritating smell materials such as organic chloramines.
The present invention can solve the problem affecting water quality because occurring when adding chloramines producing irritating smell in existing water treatment procedure in main pipeline, has technique simple, easy to operate, successful, practical advantage.
Accompanying drawing explanation
Fig. 1 is invention structure composition schematic diagram.
1 produces pipeline, 2 bypass pipes, 3 variable valve, 4 dosing mouths, 5 tubular static mixers, 6 vacuum breaker, 7 under meters, 8 volume pumps, 9 solution tanks.
Embodiment
For making the object of the embodiment of the present invention and technical scheme clearly, below in conjunction with the accompanying drawing of the embodiment of the present invention, the technical scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of protection of the invention:
As shown in the figure: a kind of novel chloramines adding system device: comprise and produce pipeline 1, bypass pipe 2, variable valve 3, dosing mouth 4, tubular static mixer 5, vacuum breaker 6, under meter 7, volume pump 8, solution tank 9; Described production pipeline 1 bypass pipe 2 in parallel; Bypass pipe 2 with flow to direction with produce pipeline 1 consistent; The first fragment position in direction that flows to of bypass pipe 2 is provided with variable valve 3; Several dosing mouths 4 arranged successively by variable valve 3; Dosing mouth 4 is connected with solution tank 9.
Vacuum breaker 6, under meter 7 and volume pump 8 are connected between dosing mouth 4 and solution tank 9.Dosing mouth 4 is three.Bypass pipe 2 between dosing mouth 4 arranges tubular static mixer 5.
The put-on method of novel chloramines adding system device, step is as follows:
1), arranging flow in bypass pipe 2 is produce pipeline 1 flow 5 ~ 10%;
2), ammonium chloride solution, sodium hydroxide solution and chlorine bleach liquor is added respectively along flowing to direction in dosing mouth 4;
3), medicament adds after carrying out accurate-metering by volume pump, and checks its flow by under meter.Three kinds of medicaments are drawn from solution tank by volume pump, pressurize after enter bypass pipe.
In ammonium chloride solution, ammonium chloride solution concentration is 1 ~ 5g/L, and concentration of sodium hydroxide solution is 5 ~ 10%, and chlorine bleach liquor adopts commercially available chlorine bleach liquor, without the need to further dilution.
As the preferred version of the put-on method of novel chloramines adding system device of the present invention, described ammonium chloride solution concentration is 2g/L; Concentration of sodium hydroxide solution is 5%.
As the preferred version of the put-on method of novel chloramines adding system device of the present invention, described adds clorox dosage (with Cl
2meter) with the adding than being 3 ~ 4:1 of ammonium chloride dosage (in N).
As the preferred version of the put-on method of novel chloramines adding system device of the present invention, the described sodium hydroxide solution added makes pH=8 ~ 10 of current in bypass pipe 2.
As the preferred version of the put-on method of novel chloramines adding system device of the present invention, the described chlorine bleach liquor added adds than being 4:1 with ammonium chloride solution; The sodium hydroxide solution added makes the preferred pH=8.5 of current in bypass pipe 2.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. a novel chloramines adding system device: it is characterized in that: comprise and produce pipeline (1), bypass pipe (2), variable valve (3), dosing mouth (4), solution tank (9); Described production pipeline (1) bypass pipe in parallel (2); Bypass pipe (2) with flow to direction with produce pipeline (1) consistent; The first fragment position in current direction direction in bypass pipe (2) is provided with variable valve (3); Several dosing mouths (4) are arranged successively after variable valve (3); Dosing mouth (4) is connected with solution tank (9).
2. novel chloramines adding system device according to claim 1: it is characterized in that: also comprise vacuum breaker (6), under meter (7), volume pump (8); Described vacuum breaker (6), under meter (7) and volume pump (8) are connected between dosing mouth (4) and solution tank (9).
3. novel chloramines adding system device according to claim 1: it is characterized in that: the bypass pipe (2) between described several dosing mouths (4) arranges tubular static mixer (5).
4. novel chloramines adding system device according to claim 1: it is characterized in that: described dosing mouth (4) is three.
5. utilize the put-on method of the novel chloramines adding system device described in the claims 1-4, it is characterized in that: step is as follows:
1), arranging bypass pipe (2) interior flow is produce pipeline (1) flow 5 ~ 10%;
2), ammonium chloride solution, sodium hydroxide solution and chlorine bleach liquor is added successively along flowing to direction in dosing mouth (4);
3), described medicament adds after carrying out accurate-metering by volume pump (8), and checks its flow by under meter (7).
6. the put-on method of novel chloramines adding system device according to claim 5, it is characterized in that: in ammonium chloride solution, ammonium chloride solution concentration is 1 ~ 5g/L, concentration of sodium hydroxide solution is 5 ~ 10%.
7. the put-on method of novel chloramines adding system device according to claim 5, it is characterized in that: the preferred concentration of described ammonium chloride solution is 2g/L, the preferred concentration of sodium hydroxide solution is 5%.
8. the put-on method of novel chloramines adding system device according to claim 6, is characterized in that: the described chlorine bleach liquor added adds than being 3 ~ 4:1 with ammonium chloride solution.
9. the put-on method of novel chloramines adding system device according to claim 6, is characterized in that: the described sodium hydroxide solution added makes pH=8 ~ 10 of bypass pipe (2) interior current.
10. the put-on method of the novel chloramines adding system device according to right 8 or 9, it is characterized in that: described preferred chlorine bleach liquor adds than being 4:1 with ammonium chloride solution, adding secondary sodium chlorate solution and making the preferred pH=8.5 of bypass pipe (2) interior current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510636090.8A CN105236528A (en) | 2015-09-30 | 2015-09-30 | Novel chloramine adding system device and adding method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510636090.8A CN105236528A (en) | 2015-09-30 | 2015-09-30 | Novel chloramine adding system device and adding method thereof |
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| CN105236528A true CN105236528A (en) | 2016-01-13 |
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| CN201510636090.8A Pending CN105236528A (en) | 2015-09-30 | 2015-09-30 | Novel chloramine adding system device and adding method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879319A (en) * | 2017-02-13 | 2018-04-06 | 湖南江海环保实业有限公司 | The preparation method and device of monochloro amine |
| CN112939189A (en) * | 2021-02-20 | 2021-06-11 | 同济大学 | Ultraviolet advanced oxidation device for building water supply pretreatment |
| CN112939302A (en) * | 2021-02-20 | 2021-06-11 | 同济大学 | Building water supply pretreatment device based on ultraviolet chlorine advanced oxidation |
| CN114887550A (en) * | 2022-05-11 | 2022-08-12 | 中领水净科技(深圳)有限公司 | High stability mixed type hypochlorous acid disinfectant preparation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11244847A (en) * | 1998-02-26 | 1999-09-14 | Toray Ind Inc | Fresh water maker |
| CN201288084Y (en) * | 2008-10-29 | 2009-08-12 | 张明亮 | Automatic throwing-adding bearing duct system for sodium hypochlorite |
| CN203247131U (en) * | 2013-05-14 | 2013-10-23 | 中国石油化工股份有限公司 | Chlorine adding system for circulating water pond |
-
2015
- 2015-09-30 CN CN201510636090.8A patent/CN105236528A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11244847A (en) * | 1998-02-26 | 1999-09-14 | Toray Ind Inc | Fresh water maker |
| CN201288084Y (en) * | 2008-10-29 | 2009-08-12 | 张明亮 | Automatic throwing-adding bearing duct system for sodium hypochlorite |
| CN203247131U (en) * | 2013-05-14 | 2013-10-23 | 中国石油化工股份有限公司 | Chlorine adding system for circulating water pond |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879319A (en) * | 2017-02-13 | 2018-04-06 | 湖南江海环保实业有限公司 | The preparation method and device of monochloro amine |
| CN107879319B (en) * | 2017-02-13 | 2020-06-19 | 湖南江海环保实业有限公司 | Preparation method and device of monochloramine |
| CN112939189A (en) * | 2021-02-20 | 2021-06-11 | 同济大学 | Ultraviolet advanced oxidation device for building water supply pretreatment |
| CN112939302A (en) * | 2021-02-20 | 2021-06-11 | 同济大学 | Building water supply pretreatment device based on ultraviolet chlorine advanced oxidation |
| CN114887550A (en) * | 2022-05-11 | 2022-08-12 | 中领水净科技(深圳)有限公司 | High stability mixed type hypochlorous acid disinfectant preparation system |
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Application publication date: 20160113 |