CN214990600U - On-line cleaning system of ozone aerator and ozone contact tank - Google Patents
On-line cleaning system of ozone aerator and ozone contact tank Download PDFInfo
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- CN214990600U CN214990600U CN202022614765.8U CN202022614765U CN214990600U CN 214990600 U CN214990600 U CN 214990600U CN 202022614765 U CN202022614765 U CN 202022614765U CN 214990600 U CN214990600 U CN 214990600U
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 179
- 238000004140 cleaning Methods 0.000 title claims abstract description 121
- 238000005276 aerator Methods 0.000 title claims abstract description 80
- 238000005273 aeration Methods 0.000 claims abstract description 65
- 238000002955 isolation Methods 0.000 claims abstract description 58
- 239000000126 substance Substances 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims description 51
- 238000011010 flushing procedure Methods 0.000 claims description 28
- 239000013043 chemical agent Substances 0.000 claims description 14
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 44
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 7
- 239000011148 porous material Substances 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical class [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- -1 rinse Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model provides an online cleaning system of an ozone aerator and an ozone contact tank. The online cleaning system of the ozone aerator comprises: an aerator comprising a plurality of aeration discs; the ozone adding device comprises an ozone inlet pipe, a first isolation valve and an ozone distributing pipe, wherein one end of the ozone inlet pipe is communicated with an ozone source, the other end of the ozone inlet pipe is communicated with the ozone distributing pipe, the ozone distributing pipe is communicated with the aeration disc so as to add ozone to the aeration disc, and the first isolation valve is arranged in the ozone inlet pipe; and at least one of a compressed air cleaning device and a chemical cleaning device is communicated with the downstream of the first isolation valve of the ozone inlet pipe so as to remove the scaling substances on the surface and in the micropores of the aeration disc on line.
Description
Technical Field
The utility model relates to the technical field of water treatment, especially, relate to an online cleaning system of ozone aerator.
Background
In the water treatment industry, ozone oxidation is more and more widely applied to the fields of water disinfection and sterilization, decoloration, oxidative degradation of organic matters difficult to biodegrade and the like. In the prior art, the aeration modes of ozone and water contact mainly comprise two types: the first type is also the most common type, and is gas bubbling type aeration, as shown in fig. 1, the microporous aerator is mainly made of ozone-resistant materials, such as silicon carbide (corundum) or titanium alloy, and is provided with an aeration disc with the diameter of 80-200 mm, the aeration disc is uniformly distributed at the bottom of an ozone contact tank, and ozone is diffused into micro bubbles through the microporous aerator; the second type is radial aeration, as shown in fig. 2, mainly mixing a part of raw water or pressurized water obtained by a circulating booster pump with ozone once through a water ejector (such as a venturi ejector), and then radially spraying and dispersing micro-bubbles at high speed in a contact tank through a radial aerator.
The first type of aeration mode is simple, has relatively low investment and operation cost, and is generally preferred, but the first type of aeration mode is only suitable for better water quality. For industrial wastewater or other water with high salt content and hardness and complex water quality, calcium carbonate and oxide generated by oxidation can be accumulated on the surface and micropores of the aerator to cause micropore blockage, thereby affecting ozone transfer efficiency and obviously reducing effects such as disinfection and sterilization. In addition, because the jam causes the increase of micropore aerator resistance, ozone supply capacity can corresponding reduction, influence safety and stability production, the event need stop the pond and overhaul, and need the professional to get into and dismantle the aerator in the contact tank, and adopt cleaning methods such as chemical agent to wash the aeration dish one by one, and ozone contact tank is for having the airtight sealed structure that requires, personnel get into the interior safety measure of pond and require highly, and after the micropore opened, before ozone contact tank comes into use again, need carry out the gas tightness test once more, it is comparatively loaded down with trivial details and needs the longer time to operate. In addition, once the aerator is clogged seriously and is difficult to recover to the original performance through cleaning, the aerator needs to be replaced.
The second aeration mode basically does not cause blockage and is suitable for water with complicated and severe water quality, but the technical level of the aeration mode has higher requirements, only a few companies such as Ozonia and the like under Suisy flag master the technology at present, and key equipment needs to be imported, so the investment cost is higher. In addition, the energy consumption of the circulating booster pump is high, and the operation cost is also obviously increased.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention provides an on-line cleaning system for an ozone aerator, which can solve the above-mentioned problems.
An aspect of the utility model discloses an online cleaning system of ozone aerator contains: an aerator comprising a plurality of aeration discs; the ozone adding device comprises an ozone inlet pipe, a first isolation valve and an ozone distributing pipe, wherein one end of the ozone inlet pipe is communicated with an ozone source, the other end of the ozone inlet pipe is communicated with the ozone distributing pipe, the ozone distributing pipe is communicated with the aeration disc so as to add ozone to the aeration disc, and the first isolation valve is arranged in the ozone inlet pipe; and at least one of the compressed air cleaning device and the chemical cleaning device is communicated with the downstream of the first isolating valve of the ozone inlet pipe so as to remove the scaling substances on the surface of the aeration disc and in the micropores on line.
In the online cleaning system of the ozone aerator, the compressed air cleaning device comprises an air inlet pipeline, a compressed air source and a compressed air source, wherein one end of the air inlet pipeline is communicated with the downstream of a first isolating valve of an ozone inlet pipe, and the other end of the air inlet pipeline is communicated with the compressed air source; and a second isolation valve disposed in the intake line.
In the online cleaning system of the ozone aerator, the compressed air cleaning device further comprises a flow meter and a pressure gauge which are arranged at the upstream of the second isolation valve.
In the on-line cleaning system of the ozone aerator, the chemical cleaning device comprises a chemical agent supplier; one end of the chemical agent feeding pipe is communicated with the chemical agent supplier, and the other end of the chemical agent feeding pipe is communicated with the downstream of the first isolation valve of the ozone inlet pipe; the aeration disc of the aerator is arranged in each liquid collecting tank; a collector for collecting liquid; one end of the liquid discharge pipe is communicated with the bottoms of the liquid collecting grooves, and the other end of the liquid discharge pipe is communicated with the collector; a pump disposed in the drain pipe to pump the liquid in the plurality of sumps to the collector; and the third isolation valve and the fourth isolation valve are respectively arranged in the dosing pipe and the liquid discharge pipe.
In the online cleaning system of the ozone aerator, the liquid collecting tank is a U-shaped tank, and the bottom of the liquid collecting tank is hermetically fixed at the joint of the ozone distribution pipe and the aeration disc.
In the above-mentioned online cleaning system for an ozone aerator, when the online cleaning system for an ozone aerator includes the chemical cleaning device, the online cleaning system for an ozone aerator further includes a flushing device, and the flushing device includes: one end of the flushing pipe is communicated with the flushing liquid source, and the other end of the flushing pipe is communicated with the ozone inlet pipe and is positioned at the downstream of the first isolating valve and the upstream of the connecting position of the dosing pipe and the ozone inlet pipe; and a fifth isolation valve disposed in the flush tube.
In the above-mentioned online cleaning system for an ozone aerator, when the online cleaning system for an ozone aerator further includes the compressed air cleaning device, an air inlet pipeline of the compressed air cleaning device is communicated with the ozone inlet pipe, and is located downstream of the first isolation valve and upstream of a connection position of the flushing pipe and the ozone inlet pipe.
In the on-line cleaning system of the ozone aerator, the width of the liquid collecting tank is 60-100mm larger than the diameter of the aeration disc, and the side wall of the liquid collecting tank is 50-100mm higher than the top surface of the aeration disc.
In the above-mentioned on-line cleaning system for an ozone aerator, the drain pipe comprises: the plurality of tank bottom liquid discharge pipes are respectively communicated with the bottoms of the plurality of liquid collecting tanks; the liquid discharge collecting pipe is communicated with the liquid discharge pipe at the bottom of each groove; and a discharge pipe, one end of which is communicated with the drainage collecting pipe and the other end of which is communicated with the collector, wherein the pump is arranged in the discharge pipe.
In the on-line cleaning system of the ozone aerator, the air inlet flow of the compressed air is 2-3 times of the maximum aeration capacity of the aerator.
Another aspect of the utility model discloses an ozone contact pond contains: the online cleaning system of the ozone aerator; at least one contacting chamber and at least one transition zone, wherein the contacting chambers and the transition zones are alternately connected in series; wherein the aerators of the online cleaning system of the ozone aerator are uniformly distributed in the contact chamber and are positioned 0.5-0.8m away from the bottom of the tank.
The utility model provides an online cleaning system of ozone aerator can carry out compressed air cleaning procedure and/or chemical cleaning procedure to ozone aerator on line to get rid of aeration dish surface and the interior scale deposit of micropore effectively, avoid the various defects that micropore choking leads to among the prior art. Moreover, the on-line cleaning system of the ozone aerator provided by the utility model has simple structure and convenient operation, so the preparation cost and the operation cost can be saved.
Drawings
The advantages and objects of the present invention will be better understood from the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the relationship of the various components.
FIG. 1 is a schematic diagram of a gas bubbling aeration mode in the prior art.
FIG. 2 is a schematic diagram of a radial aeration mode in the prior art.
Fig. 3 is a schematic sectional view of an on-line cleaning system of an ozone aerator in an ozone contact tank according to an embodiment of the present invention.
Figure 4 is a top view of an in-line cleaning system for an ozone aerator of one embodiment of the present invention in a contact chamber.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be apparent to those skilled in the art from the present disclosure.
It should be understood that the drawings attached to the present specification are only used for matching the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structure, change of the proportion relation or adjustment of the size should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the function and the achievable purpose of the present invention. In addition, the terms "above" and "a" are used in the present specification for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention unless otherwise specified.
The present invention is described in detail below by way of describing exemplary embodiments.
Fig. 3 is a schematic sectional view of an on-line cleaning system of an ozone aerator in an ozone contact tank according to an embodiment of the present invention. Figure 4 is a top view of an in-line cleaning system for an ozone aerator of one embodiment of the present invention in a contact chamber.
The ozone aerator online cleaning system 20 is applied to the ozone contact tank 10. The ozone contact tank 10 comprises at least one contact chamber 11, at least one transition zone 12, a water inlet 13, a water outlet 14 and a blow-down valve 15, wherein the contact chambers 11 and the transition zones 12 are alternately connected in series, in this embodiment only one contact chamber 11 and one transition zone 12 are shown, as shown in fig. 3, the depth of water in the ozone contact tank 10 is typically 5-7 meters, water enters the contact chamber 11 of the ozone contact tank 10 from the water inlet 13, and in the contact chamber 11, the water flows from top to bottom and then to the water outlet 14 via the transition zone 12, and in the transition zone 12, the water flows from bottom to top as shown by the arrows in fig. 3. The water inlet 13 and the water outlet 14 are respectively provided with a water inlet valve 131 and a water outlet valve 141. A vent valve 15 is provided at the bottom of ozone contact tank 10 to vent the water in ozone contact tank 10.
In an embodiment of the present invention, the on-line cleaning system 20 of the ozone aerator comprises an aerator 21, an ozone adding device 22, a compressed air cleaning device 23, a chemical cleaning device 24 and a washing device 25, as shown in fig. 3.
The aerator 21 is a micro-porous aerator comprising a plurality of aeration disks 211, preferably, the plurality of aeration disks 211 are arranged in a plurality of rows (as shown in fig. 4), the aerator 21 is disposed in the contact chamber 11 of the ozone contact tank 10 and uniformly disposed at a position of about 0.5 to 0.8m from the bottom of the tank, and ozone is diffused into micro-bubbles by the aerator 21, and the micro-bubbles rise slowly against the flow of water to be sufficiently contact-reacted with the water. The specific structures of the aerator 21 and the aeration disc 211 are well known to those skilled in the art and thus will not be described in detail.
The ozone adding device 22 comprises an ozone inlet pipe 220, a first isolation valve 221 and an ozone distributing pipe 224. One end of the ozone inlet pipe 220 is connected to an ozone source, the other end is connected to the ozone distribution pipe 224, the ozone distribution pipe 224 is connected to the aeration discs 211 to feed ozone to each aeration disc 211, the first isolation valve 221 is disposed in the ozone inlet pipe 220, and preferably, the ozone feeding device 22 further includes a flow meter 222 and a pressure meter 223 upstream of the first isolation valve 221 to monitor the flow rate and pressure of ozone in the ozone inlet pipe 220. The first isolation valve 221 is preferably an automatic isolation valve.
The compressed air cleaning device 23 comprises an air inlet line 231, a second isolation valve 232 and preferably also a flow meter 233 and a press 234. One end of the air inlet pipe 231 is connected to the ozone inlet pipe 220 and is located downstream of the first isolation valve 221, and the other end is connected to a compressed air source. The second isolation valve 232, the flow meter 233, and the press 234 are disposed in the intake pipe 231, and the flow meter 233 and the press 234 are disposed upstream of the second isolation valve 231. The second isolation valve 232 is preferably an automatic isolation valve.
The compressed air cleaning device 23 can be turned on without stopping water under the condition that the ozone contact tank 10 is normally operated, so as to perform the compressed air cleaning process on line. In an embodiment, the opening of the compressed air cleaning device 23 may be controlled according to the flow rate and pressure change of the ozone added by the ozone adding device 22, and in detail, if the pressure of the ozone rises to exceed a set value under a specific flow rate condition, it indicates that the micro pores on the aeration disc 211 are blocked to a certain extent, and a cleaning procedure needs to be started, and at this time, the compressed air cleaning procedure may be executed by automatically opening the second isolation valve 232. In a variant embodiment, the opening of the compressed air cleaning device 23 can also be set to a timed opening, independent of the flow rate or pressure of the ozone dosed.
The compressed air cleaning device 23 performs the compressed air cleaning process as follows: closing the first isolating valve 221 of the ozone adding device 22; the second isolation valve 232 of the compressed air cleaning device 23 is opened to allow the compressed air to flow to each aeration disc 211 on the ozone distribution pipe through the ozone inlet pipe 220, and blow off the scales on the surface of the aeration disc 211 and in the micropores, i.e. the compressed air cleaning procedure is performed. Preferably, the intake flow rate of the compressed air is set to 2-3 times the maximum aeration capacity of the aerator 21, and the intake pressure of the compressed air is monitored to be not more than a set value, so that the scales on the surface and in the micropores of the aeration disc 211 can be effectively removed, and simultaneously, the defect that the aerator 21 falls off or even the aeration disc 211 is damaged due to the excessive intake pressure is avoided.
The compressed air cleaning device 23 only needs to be opened for several minutes each time, because the quality of the outlet water is not significantly affected only by performing the compressed air cleaning procedure for a short time. If the compressed air cleaning process is performed for a long time, the water inlet valve 131 of the ozone contact tank 10 is closed, and the influence on the adjacent contact tank is also considered.
The compressed air cleaning process does not completely remove the scaling substances deposited on the surface and in the micro-pores of the aeration disk 211. When the scaling substances on the aeration disk 211 are accumulated to a certain degree, the chemical cleaning device 24 is turned on to perform the chemical cleaning process.
The details of the chemical cleaning apparatus 24 and associated rinsing apparatus 25 and the specific operation of the chemical cleaning process will be described below.
The chemical cleaning device 24 includes a chemical supply 241, a dosing tube 242, a third isolation valve 243, a fourth isolation valve 244, a plurality of sumps 245, a drain 246, a pump 247, and a collector 248. The chemical supply 241 may include chemicals, containers, dosing pumps, etc. to supply chemicals to other components. One end of the chemical feeding pipe 242 is connected to the chemical supply 241, and the other end is connected to the ozone inlet pipe 220, and is located at the downstream of the connection position of the ozone inlet pipe 220 and the air inlet pipe 231 of the compressed air cleaning device 23, so that the chemical supply and other liquids in the ozone inlet pipe 220 can be discharged by using compressed air. A third isolation valve 243 is disposed in the dosing tube 242, the third isolation valve 243 preferably being a manual isolation valve. Sump 245 is made of stainless steel or other ozone resistant material. The liquid collecting tank 245 is a U-shaped tank, the bottom of which is hermetically fixed at the connection between the ozone distributing pipe 224 and the aeration disc 211, and the aeration disc 211 is accommodated in the liquid collecting tank 245. Preferably, the aeration discs 211 arranged in the same row are received in one of the sump 245. Preferably, the aeration tray 211 is located approximately at the center of the width of the liquid collection tank 245, the width of the liquid collection tank 245 is 6-10 cm larger than the diameter of the aeration tray 211, and the side wall of the liquid collection tank 245 is 5-10cm higher than the top surface of the aeration tray 211, so that the arrangement of the liquid collection tank 245 does not affect the aeration and mass transfer effects of the aeration tray 211. Drain 246 includes a plurality of trough bottom drains 2461, drain collection pipes 2462, and drain pipes 2463. As shown in fig. 3, one end of each of the plurality of tank bottom drain pipes 2461 is connected to the bottom of each of the liquid collecting tanks 245, the other end is connected to the drain pipe 2463 via a drain collecting pipe 2462, and the drain pipe 2463 is connected to the collector 248, wherein the drain collecting pipe 2462 is disposed below the ozone inlet pipe 220. A fourth isolation valve 244 and a pump 247 are disposed in the drain 2463, the pump 247 for pumping fluid (e.g., rinse, chemical, etc.) from the sump 245 to the collector 248, and the fourth isolation valve 244 upstream of the pump 247. Preferably, the fourth isolation valve 244 is a manual isolation valve.
The flushing device 25 comprises a flushing pipe 251 and a fifth isolation valve 252. One end of the flushing pipe 251 is connected to a flushing liquid source (e.g., a water source), and the other end is connected to the ozone inlet pipe 220, and is located at the upstream of the connection position of the chemical agent feeding pipe 242 of the chemical agent cleaning device 24 and the ozone inlet pipe 220, and at the downstream of the connection position of the air inlet pipe 231 of the compressed air cleaning device 23 and the ozone inlet pipe 220, so that the flushing liquid can be used to flush the chemical agent in the ozone inlet pipe 220, and the flushing liquid in the ozone inlet pipe 220 can be discharged by using the compressed air. A fifth isolation valve 252 is disposed in the flush tube 251 and is preferably a manual isolation valve.
The chemical cleaning device 24 is required to perform an on-line chemical cleaning process when the ozone contact tank 10 is emptied of water, and a chemical (e.g., a dilute acid solution) can be added to the inside of the aeration disc 211 through the ozone inlet pipe 220 and dissolve the scaling substances in the micro-pores, so that the chemical can flow into the liquid collecting tank 245 through the micro-pores of the aeration disc 211 until the chemical in the liquid collecting tank 245 submerges the top surface of the aeration disc 211, thereby facilitating the recovery of the chemical while ensuring the chemical cleaning effect.
The chemical cleaning apparatus 24 performs the chemical cleaning process as follows: closing the first isolating valve 221 of the ozone adding device 22; opening a second isolation valve 232 of the compressed air cleaning device 23 to purge and reduce the ozone concentration in the water and on the water surface in the ozone contact tank 10, and then closing the second isolation valve 232; closing the water inlet valve 131 and the water outlet valve 141 of the ozone contact tank 10, and opening the emptying valve 15 to empty the water in the ozone contact tank 10 and facilitate the emptying of chemical agents or flushing water which subsequently overflows from the liquid collecting tank 245; opening the fourth isolation valve 244 and the pump 247 of the chemical cleaning device 24 to pump the water accumulated in the sump 245 and the drain 246 to the collector 248, and then closing the fourth isolation valve 244 and the pump 247; opening the third isolation valve 243 of the chemical cleaning device 24, injecting the chemical (e.g., dilute acid solution) in the chemical supply device 241 into the aeration disc 211 through the ozone inlet pipe 220 and the ozone distribution pipe 224 by gravity or pumping (i.e., opening the dosing metering pump), and seeping out from the micropores of the aeration disc 211 until the top surface of the aeration disc 211 is submerged for soaking; after several hours of soaking, the fourth isolation valve 244 and pump 247 are opened to draw the chemical in the sump 245 and drain 246 to the collector 248, and then the fourth isolation valve 244 and pump 247 are closed; the fifth isolation valve 252 of the flushing device 25 is manually opened to inject the flushing liquid, after the liquid collecting tank 245 is filled with the flushing liquid, the fourth isolation valve 244 and the pump 247 are opened again until the flushing liquid is discharged, so that a flushing program is executed; then repeatedly executing the washing program for 2-3 times; closing the vent valve 15; opening a water inlet valve 131 of a water inlet 13 of the ozone contact tank 10 to fill water in the ozone contact tank 10; opening a second isolation valve 232 of the compressed air cleaning device 23, purging the ozone inlet pipe 220, the ozone distribution pipe 224 and the aeration disc 211 for several minutes, and then closing the second isolation valve 232 to blow out the residual liquid in the ozone inlet pipe 220, the ozone distribution pipe 224 and the aeration disc 211; and finally, opening the first isolating valve 221 of the ozone adding device 22 and the water outlet valve 141 of the water outlet 14 of the ozone contact tank 10 so as to enable the ozone contact tank to be put into operation again.
In other embodiments of the present invention, the online cleaning system 20 'of the ozone aerator comprises an aerator 21', an ozone adding device 22', and any one of a compressed air cleaning device 23' and a chemical cleaning device 24', and when the online cleaning system 20' of the ozone aerator comprises the chemical cleaning device 24', the online cleaning system 20 of the ozone aerator is further provided with a flushing device 25'. The working principle and structure of the online cleaning systems 20 'and 20 of the ozone aerator are substantially the same, and the online cleaning system 20' of the ozone aerator of the embodiment can be obtained only by removing the compressed air cleaning device 23 or the chemical cleaning device 24 and the flushing device 25 from the online cleaning system 20 of the ozone aerator, and the online cleaning procedure only needs to delete the operations related to the removal device, so that the detailed description is omitted.
To sum up, the utility model provides an online cleaning system of ozone aerator is owing to contain at least one among compressed air belt cleaning device and the chemical cleaning device, so can carry out compressed air cleaning procedure and/or chemical cleaning procedure on line, and then get rid of the scaling thing on aeration dish surface and the micropore effectively, avoid among the prior art micropore to block up the various defects that lead to. When the online cleaning system of the ozone aerator comprises the chemical cleaning device, the online cleaning system also comprises a flushing device for flushing the chemical agent. In addition, the online cleaning system of the ozone aerator has a simple structure and is convenient to operate, so that the preparation cost and the operation cost can be saved.
Claims (11)
1. An on-line cleaning system of an ozone aerator, which is characterized by comprising:
an aerator comprising a plurality of aeration discs;
the ozone adding device comprises an ozone inlet pipe, a first isolation valve and an ozone distributing pipe, one end of the ozone inlet pipe is communicated with an ozone source, the other end of the ozone inlet pipe is communicated with the ozone distributing pipe, the ozone distributing pipe is communicated with the aeration disc so as to add ozone to the aeration disc, and the first isolation valve is arranged in the ozone inlet pipe; and
at least one of a compressed air cleaning device and a chemical cleaning device is communicated with the downstream of the first isolation valve of the ozone inlet pipe so as to clean scaling substances on the surface and in the micropores of the aeration disc on line.
2. The on-line cleaning system of the ozone aerator of claim 1, wherein the compressed air cleaning device comprises:
one end of the air inlet pipeline is communicated with the downstream of the first isolation valve of the ozone inlet pipe, and the other end of the air inlet pipeline is communicated with a compressed air source; and
and the second isolation valve is arranged in the air inlet pipeline.
3. The on-line cleaning system of the ozone aerator of claim 2, wherein the compressed air cleaning device further comprises a flow meter and a pressure gauge, both disposed upstream of the second isolation valve.
4. The on-line cleaning system of the ozone aerator of claim 1, wherein the chemical cleaning device comprises:
a chemical agent supply;
one end of the chemical agent feeding pipe is communicated with the chemical agent supplier, and the other end of the chemical agent feeding pipe is communicated with the downstream of the first isolating valve of the ozone inlet pipe;
a plurality of liquid collecting tanks, wherein the aeration discs of the aerator are arranged in the liquid collecting tanks;
a collector for collecting liquid;
one end of the liquid discharge pipe is communicated with the bottoms of the liquid collecting grooves, and the other end of the liquid discharge pipe is communicated with the collector;
a pump arranged in the drain pipe to pump the liquid in the liquid collecting tanks to the collector; and
and the third isolation valve and the fourth isolation valve are respectively arranged in the dosing pipe and the liquid discharge pipe.
5. The on-line cleaning system of the ozone aerator of claim 4, wherein the liquid collecting tank is a U-shaped tank, and the bottom of the liquid collecting tank is hermetically fixed at the connection part of the ozone distributing pipe and the aeration disc.
6. The on-line cleaning system of the ozone aerator of claim 4, wherein when the on-line cleaning system of the ozone aerator comprises the chemical cleaning device, the on-line cleaning system of the ozone aerator further comprises a flushing device, the flushing device comprising:
one end of the flushing pipe is communicated with a flushing liquid source, and the other end of the flushing pipe is communicated with the ozone inlet pipe and is positioned at the downstream of the first isolating valve and the upstream of the connecting position of the dosing pipe and the ozone inlet pipe; and
and the fifth isolation valve is arranged in the flushing pipe.
7. The on-line cleaning system of the ozone aerator of claim 6, wherein when the on-line cleaning system of the ozone aerator further comprises the compressed air cleaning device, the air inlet pipeline of the compressed air cleaning device is communicated with the ozone inlet pipe and is positioned at the downstream of the first isolation valve and the upstream of the connection position of the flushing pipe and the ozone inlet pipe.
8. The on-line cleaning system of the ozone aerator of claim 5, wherein the width of the sump is 60-100mm larger than the diameter of the aeration pan, and the side wall of the sump is 50-100mm higher than the top surface of the aeration pan.
9. The on-line cleaning system of the ozone aerator of claim 8, wherein the drain comprises:
a plurality of tank bottom liquid discharge pipes which are respectively communicated with the bottoms of the liquid collecting tanks;
the liquid discharge collecting pipe is communicated with the liquid discharge pipe at the bottom of each groove; and
and a discharge pipe, one end of which is communicated with the drainage collecting pipe and the other end of which is communicated with the collector, wherein the pump is arranged in the discharge pipe.
10. The on-line cleaning system of the ozone aerator of claim 3, wherein the intake flow rate of the compressed air is 2-3 times the maximum aeration capacity of the aerator.
11. An ozone contact cell, comprising:
an on-line cleaning system for an ozone aerator as claimed in any one of claims 1 to 10;
at least one contacting chamber and at least one transition zone, wherein the contacting chambers and the transition zones are alternately connected together in series;
wherein the aerators of the online cleaning system of the ozone aerator are uniformly distributed in the contact chamber and are positioned at a distance of 0.5-0.8m from the bottom of the tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022614765.8U CN214990600U (en) | 2020-11-12 | 2020-11-12 | On-line cleaning system of ozone aerator and ozone contact tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022614765.8U CN214990600U (en) | 2020-11-12 | 2020-11-12 | On-line cleaning system of ozone aerator and ozone contact tank |
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| CN214990600U true CN214990600U (en) | 2021-12-03 |
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| CN202022614765.8U Active CN214990600U (en) | 2020-11-12 | 2020-11-12 | On-line cleaning system of ozone aerator and ozone contact tank |
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| Country | Link |
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| CN (1) | CN214990600U (en) |
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Address after: 3101, 27th Floor, Building 1, Yard 38, East 3rd Ring North Road, Chaoyang District, Beijing, 100026 Patentee after: Suez Environmental Technology (Beijing) Co.,Ltd. Address before: 100026 31 / F, Taikang financial building, building 1, courtyard 38, East Third Ring Road North, Chaoyang District, Beijing Patentee before: Suez Water Treatment Co,.Ltd. |