CN214570902U - Secondary water supply system degassing unit based on two UV disinfection techniques - Google Patents
Secondary water supply system degassing unit based on two UV disinfection techniques Download PDFInfo
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- CN214570902U CN214570902U CN202120203167.3U CN202120203167U CN214570902U CN 214570902 U CN214570902 U CN 214570902U CN 202120203167 U CN202120203167 U CN 202120203167U CN 214570902 U CN214570902 U CN 214570902U
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Abstract
The utility model discloses a secondary water supply system disinfection device based on double UV disinfection technology, which comprises a circulating water pump, a mixer for mixing water and ozone and an ultraviolet UV-C catalytic device for carrying out photocatalysis on water containing ozone, which are sequentially connected through a circulating water pipeline; the mixer is connected with an ultraviolet UV-D light source for generating ozone; the ultraviolet UV-D light source is arranged in a shell, and the shell is provided with an air inlet and an ozone outlet; the ozone output port is connected with the mixer through a pipeline. The utility model provides a fresh-keeping problem of water disinfection among the secondary water supply system's among the prior art water storage container, through the utility model discloses a hydroxyl free radical and the chlorine residue that produces of secondary water supply system degassing unit based on two UV disinfection techniques jointly act on, effectually get rid of organic little pollutant, have avoided secondary pollution to the influence of drinking terminal water, reach the effect that improves the standard of drinking water quality of water conscientiously.
Description
Technical Field
The utility model relates to a secondary water supply technique, in particular to secondary water supply system degassing unit based on two UV disinfection techniques.
Background
With the improvement of the water safety awareness of people, the high quality and safety of water supply become more important. The secondary water supply mode is basically a multilayer direct supply mode, most of high-rise communities are low-level water storage tanks and variable-frequency constant-voltage type water supply, and in recent years, laminated water supply is adopted. The secondary water supply of most residential high-rise buildings is provided with a large low-level water pool, and a water pump supplies water under pressure.
The water produced by the water plant can basically meet the water quality requirement of the living drinking water standard GB5749-2006, and is safe and reliable drinking water. However, after the water comes out from the water plant, the water firstly enters a huge municipal water delivery and distribution pipe network and then enters a high-level low-level water storage tank of a community, and is pressurized by a water pump and then is delivered to a water using terminal through an indoor pipe network. In the process, the factory residual chlorine is inevitably exhausted, and the turbidity of bacteria is increased. Generally, municipal pipe networks are gradually enlarged from small scale from simple to complex from local to whole and from new pipes to old pipes, so that the reconstruction and the new construction of the municipal pipe networks are always carried out, which is a condition that water is secondarily polluted. In addition, the municipal pipe network can generate secondary pollution due to unavoidable blind pipes, dead joints, fire hydrant (valve) branch pipes, pipe network corrosion and deposited silt and dirt. Entering a residential area (high-rise) building, all setting up low-level pond, big pond holds the pond and can make water dwell time increase in the pond, also can breed a large amount of bacteriums like this. Generally, the residual chlorine in the factory water containing residual chlorine is reduced to zero after more than 24 hours, and the increase of bacteria is accelerated.
In a water plant using liquid chlorine composite chlorine dioxide for disinfection, some disinfection byproducts may be generated in the effluent, and the removal of trace disinfection byproducts is very difficult.
In the practical design, how to select an effective disinfection process, how to control the adding of the disinfection dose and how to pick up and control the disinfection effect is good or bad. Since all the related secondary water supply technical regulations and guides in China at present have no clear regulations, the research on safe and effective secondary water supply tank (tank) disinfection and control technology and the development of equipment are particularly important.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned shortcoming and not enough of prior art, the utility model aims to provide a secondary water supply system degassing unit based on two UV disinfection techniques can effectively solve the disinfection problem of current secondary water supply normal water, still solves the fresh-keeping problem of quality of water simultaneously.
The purpose of the utility model is realized through the following technical scheme:
a secondary water supply system disinfection device based on double UV disinfection technology comprises a circulating water pump, a mixer and an ultraviolet UV-C catalytic device, wherein the circulating water pump, the mixer and the ultraviolet UV-C catalytic device are sequentially connected through a circulating water pipeline;
the mixer is connected with an ultraviolet UV-D light source for generating ozone;
the ultraviolet UV-D light source is arranged in a shell, and the shell is provided with an air inlet and an ozone outlet; the ozone output port is connected with the mixer through a pipeline;
and two ends of the circulating water pipeline are respectively connected with a water storage container of the secondary water supply system.
Preferably, the ultraviolet UV-D light source comprises a plurality of ultraviolet UV-D lamps.
Preferably, the ultraviolet UV-C catalytic device is a tubular container with an ultraviolet UV-C light source arranged inside.
Preferably, the ultraviolet light UV-C light source comprises a plurality of ultraviolet light UV-C lamps.
Preferably, the secondary water supply system disinfection device based on the double UV disinfection technology further comprises an oxidation-reduction potential on-line analyzer; the oxidation-reduction potential on-line analyzer is connected with an ultraviolet UV-D light source; the detection end of the oxidation-reduction potential on-line analyzer is arranged in the water storage container.
Preferably, the mixer is a mixer having a jet flow and turbulent flow mixing function.
Preferably, one end of the circulating water pipeline is connected with a blow-down pipe opening of a water storage container of the secondary water supply system.
Compared with the prior art, the utility model has the advantages of it is following and beneficial effect:
the principle of the utility model is that:
the utility model discloses a secondary water supply system degassing unit based on two UV disinfection techniques at first mixes through the ozone that produces water and ultraviolet ray UV-D light source, produces the water that contains ozone, makes the water that contains ozone produce hydroxyl radical (.OH) under ultraviolet ray UV-C catalytic unit's effect again. The oxidation electrode potential of the hydroxyl radical reaches 2.8v, which is specific to ozone (O)3) Is about one third higher, and one mole of ozone can generate two moles of hydroxyl radicals, so that the hydroxyl radicals have stronger oxidizing property and are oxidized more thoroughly. Furthermore, the utility model discloses a circulating pipe will contain the hydroxyl radical water and send back to reservoir, contain the coexistence of hydroxyl radical water and former running water aquatic chlorine residue in reservoir, disinfect the reaction in coordination: the hydroxyl free radical is preferentially oxidized to remove micro-pollutants in water, thereby playing a role in disinfection and preservation; meanwhile, hydroxyl free radicals react with chlorine disinfectant to generate hydroxyl chlorine anion free radicals, chlorine free radicals and chlorine atoms (chlorine free radicals), and the hydroxyl chlorine anion free radicals and the chlorine atoms still have strong oxidizability, so that the energy for continuous disinfection is kept.
Compared with the prior art, the utility model has the advantages of it is following and beneficial effect:
(1) the utility model discloses a secondary water supply system degassing unit based on two UV disinfection techniques, the fresh-keeping problem of water disinfection in the secondary water supply system's among the prior art water storage container has been solved, mix through the right amount ozone that produces ultraviolet UV-D light source and dissolve in to the aquatic, produce ozone water, the water that contains ozone is under ultraviolet UV-C catalytic unit's catalytic action, the hydroxyl radical and the residual chlorine combined action of production, the effectual organic micro pollutant that gets rid of, the influence of secondary pollution to drinking terminal water has been avoided, reach the standard that improves drinking water quality conscientiously.
(2) The utility model discloses a secondary water supply system degassing unit based on two UV disinfection techniques only needs to carry out the outer installation to secondary water supply system's the retaining container body, disinfects fresh-keeping circulation, is favorable to the transformation of old secondary water supply system facility, is applicable to newly-built two designs of supplying the facility and builds.
(3) The utility model adopts the micro ozone generated by the ultraviolet UV-D light source under the catalysis, the generated hydroxyl free radical (OH) is more thorough except the oxidation and is more harmless, and can be rapidly decomposed and reacted in the air to generate O and H2O is a harmless substance. The existing ozone disinfection method is caused by ozone (O)3) Is a strong oxidant, the oxidation electrode potential of the strong oxidant is 2.07v, and the oxidation capacity is higher than (Cl)2) Nearly one time. Under the condition of higher oxidant amount, ozone has high oxidation speed and good efficiency, but if the adding mode and the adding amount are not controlled well, the residual ozone overflows to influence the quality of the ambient air. Therefore, the disinfection method of the utility model is safer and more environment-friendly.
Drawings
Fig. 1 is a schematic diagram showing the composition of a secondary water supply system disinfection device based on the double UV disinfection technology according to an embodiment of the present invention.
Fig. 2 is a schematic view of the disinfection process of the secondary water supply system disinfection device based on the dual UV disinfection technology according to the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Examples
Fig. 1 shows a secondary water supply system sterilizing apparatus based on a dual UV sterilization technique according to the present embodiment. As shown in figure 1, the secondary water supply system comprises a water storage container 1, wherein a water inlet 1-2 and a water outlet 1-3 of municipal tap water are arranged on the water storage container 1. The secondary water supply system disinfection device based on the double UV disinfection technology comprises a circulating water pipeline 2, a circulating water pump 3, a mixer 4, an ultraviolet UV-C catalytic device 5 and an ultraviolet UV-D light source 6; the circulating water pump 3, the mixer 4 and the ultraviolet UV-C catalytic device 5 are sequentially connected and communicated through a circulating water pipeline 2; the ultraviolet UV-D light source 6 is arranged in a shell, and the shell is provided with an air inlet and an ozone outlet; the ozone output port is connected with the mixer 4 through a pipeline; the two ends of the circulating water pipeline 2 are respectively connected with the water storage container 1 of the secondary water supply system, wherein one end of the circulating water pipeline 2 is connected with the emptying pipe orifice of the water storage container 1 of the secondary water supply system.
The secondary water supply system disinfection device based on the double UV disinfection technology of the embodiment can also comprise an oxidation-reduction potential online analyzer 7(ORP online analyzer), wherein the oxidation-reduction potential online analyzer 7 is connected with the ultraviolet UV-D light source 6; the detection end of the oxidation-reduction potential on-line analyzer 7 is arranged in the water storage container. The oxidation-reduction potential on-line analyzer 7 is used for adjusting the ultraviolet UV-D light source, so that the ORP value (oxidation-reduction potential value) of the water in the water storage container is kept between 550 and 700 mv.
The ultraviolet UV-D light source of the present embodiment may include a plurality of ultraviolet UV-D lamps having three operating conditions of high, medium, and low, and irradiates the dry air to generate a trace amount of ozone.
The ultraviolet UV-C catalytic device of the present embodiment is a tubular container with an ultraviolet UV-C light source built therein, or may be a combination of a plurality of tubular containers with an ultraviolet UV-C light source built therein; for photocatalytic treatment of water containing ozone.
The mixer of the embodiment is a high-efficiency mixer with jet flow and turbulence mixing functions, and is used for mixing water and ozone generated by an ultraviolet UV-D light source.
The selection of the circulating water pipe and the circulating water pump in the embodiment needs to be designed and calculated according to the volume of the water storage container and the peak water consumption of the secondary water supply.
As shown in fig. 2, the sterilization process of the secondary water supply system sterilization apparatus based on the dual UV sterilization technology of the present embodiment is as follows:
pressurizing water into a high-efficiency mixer by a circulating water pump, sucking jet flow for mixing and turbulent flow reaction under the action of pressure flow, and generating O by an ultraviolet UV-D light source3+O2Air and circulating water are fully mixed and then enter an ultraviolet UV-C catalytic device, and the ultraviolet UV-C catalytic device is used for treating micro-O3Water is subjected to ultraviolet light catalysis to generate active oxygen (OH, hydroxyl radical). The water containing hydroxyl free radicals enters the water storage container through the circulating water pipe, and is disinfected and preserved together with residual chlorine in the original water, so that the amount of the continuous disinfectant in the water is reserved, and the water in the water storage container is disinfected and preserved through continuous circulation. The ultraviolet UV-D light source of the embodiment has three working conditions of high, medium and low, and is controlled by an ORP on-line analyzer. And adjusting the working condition state of the ultraviolet UV-D light source according to the change of the oxidation-reduction potential of the water in the water storage container, so that the ORP value of the water in the water storage container is kept between 550 and 700 mv.
The working principle of the disinfection device of the secondary water supply system of the embodiment is as follows:
mixing and dissolving a trace amount of ozone into water to generate ozone-containing water, wherein the ozone-containing water generates hydroxyl radicals (. OH) under the action of a catalyst. The oxidation electrode potential of the hydroxyl radical reaches 2.8v, which is specific to ozone (O)3) Is about one third higher, and one mole of ozone can generate two moles of hydroxyl radicals, so that the hydroxyl radicals have stronger oxidizing property and are oxidized more thoroughly. The utility model discloses a circulating pipe will contain hydroxyl free radical water and send back water storage container, coexists with former running water aquatic chlorine residue in water storage container, carries out disinfection reaction in coordination: the hydroxyl free radical is preferentially oxidized to remove micro-pollutants in water, thereby playing a role in disinfection and preservation; meanwhile, hydroxyl free radicals react with chlorine disinfectant to generate hydroxyl chlorine anion free radicals, chlorine free radicals and chlorine atoms (chlorine free radicals), and the hydroxyl chlorine anion free radicals and the chlorine atoms still have strong oxidizability, so that the energy for continuous disinfection is kept.
The utility model discloses a secondary water supply system degassing unit based on two UV disinfection techniques, the fresh-keeping problem of water disinfection in the secondary water supply system's among the prior art water storage container has been solved, at first dissolve in the aquatic with the proper amount ozone mixture that ultraviolet ray UV-D light source produced, produce ozone water, the water that contains ozone is under the catalytic action of ultraviolet ray UV-C light source, the hydroxyl free radical and the chlorine residue of production jointly act on, the effectual organic micro pollutant that gets rid of, the influence of secondary pollution to drinking terminal water has been avoided, reach the effect of the standard that improves drinking water quality conscientiously. And simultaneously, the utility model discloses a secondary water supply system degassing unit based on two UV disinfection technique connects out a circulating pipe at the blow-down mouth of pipe of secondary water supply system's retaining container, inserts circulating water pump, blender, ultraviolet ray UV-C catalytic unit and ultraviolet ray UV-D light source again, only needs to carry out the outer installation to the retaining container body of secondary water supply system, disinfects fresh-keeping circulation, is favorable to the transformation of old secondary water supply system facility, is applicable to the project construction of newly-built two confession facilities.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (7)
1. A secondary water supply system disinfection device based on double UV disinfection technology is characterized by comprising a circulating water pump, a mixer for mixing water and ozone and an ultraviolet UV-C catalytic device for carrying out photocatalysis on water containing ozone, which are sequentially connected through a circulating water pipeline;
the mixer is connected with an ultraviolet UV-D light source for generating ozone;
the ultraviolet UV-D light source is arranged in a shell, and the shell is provided with an air inlet and an ozone outlet; the ozone output port is connected with the mixer through a pipeline;
and two ends of the circulating water pipeline are respectively connected with a water storage container of the secondary water supply system.
2. The dual UV disinfection technology-based secondary water supply disinfection apparatus as claimed in claim 1, wherein said ultraviolet UV-D light source comprises a plurality of ultraviolet UV-D lamps.
3. The dual UV disinfection technology-based secondary water supply system disinfection apparatus as claimed in claim 1, wherein said ultraviolet UV-C catalytic device is a tubular container having an ultraviolet UV-C light source built therein.
4. The dual UV disinfection technology-based secondary water supply disinfection apparatus as claimed in claim 1 or 3, wherein said ultraviolet UV-C light source comprises a plurality of ultraviolet UV-C lamps.
5. The dual UV disinfection technology-based secondary water supply system disinfection apparatus of claim 1, further comprising an oxidation-reduction potential on-line analyzer; the oxidation-reduction potential on-line analyzer is connected with an ultraviolet UV-D light source; the detection end of the oxidation-reduction potential on-line analyzer is arranged in the water storage container.
6. The dual UV disinfection technology-based secondary water supply disinfection apparatus as claimed in claim 1, wherein said mixer is a mixer having a jet and turbulent mixing function.
7. The dual UV disinfection technology-based secondary water supply system disinfection apparatus as claimed in claim 1, wherein one end of said circulating water pipe is connected to a flare opening of a water storage container of the secondary water supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120203167.3U CN214570902U (en) | 2021-01-25 | 2021-01-25 | Secondary water supply system degassing unit based on two UV disinfection techniques |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120203167.3U CN214570902U (en) | 2021-01-25 | 2021-01-25 | Secondary water supply system degassing unit based on two UV disinfection techniques |
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| CN214570902U true CN214570902U (en) | 2021-11-02 |
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| CN202120203167.3U Active CN214570902U (en) | 2021-01-25 | 2021-01-25 | Secondary water supply system degassing unit based on two UV disinfection techniques |
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