CN108002562A - Aerator and water treatment facilities and method for treating water for water process - Google Patents
Aerator and water treatment facilities and method for treating water for water process Download PDFInfo
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- CN108002562A CN108002562A CN201810065565.6A CN201810065565A CN108002562A CN 108002562 A CN108002562 A CN 108002562A CN 201810065565 A CN201810065565 A CN 201810065565A CN 108002562 A CN108002562 A CN 108002562A
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- Prior art keywords
- water
- aeration device
- jet
- aeration
- air
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 188
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005276 aerator Methods 0.000 title abstract description 7
- 230000008569 process Effects 0.000 title abstract description 6
- 238000005273 aeration Methods 0.000 claims abstract description 113
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 230000009471 action Effects 0.000 claims abstract description 8
- 238000007667 floating Methods 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 230000003434 inspiratory effect Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- 238000009434 installation Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006213 oxygenation reaction Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
For the aerator and water treatment facilities and method for treating water of water process, which includes：Bindiny mechanism, connects the various components of aerator；Float mechanism so that aerator floats on the water surface；And jet-flow aeration mechanism, aerator is discharged after water and air is mixed, wherein, bindiny mechanism is arranged at the middle part of float mechanism, and the lower end connection jet-flow aeration mechanism of the connection structure, bindiny mechanism includes working barrel and inlet manifold, jet-flow aeration mechanism includes fluidic chambers and cyclone pipe, under the action of working barrel, water is enabled to enter cyclone pipe by fluidic chambers, and air can enter cyclone pipe from inlet manifold, and mixed in the cyclone pipe with the water from fluidic chambers, outlet of the water mixed with air through cyclone pipe is discharged in the water body outside aerator, wherein, the multiple cyclone pipes being arranged on around fluidic chambers have length interval, the even distribution pattern to stagger up and down.
Description
Technical Field
The invention relates to a water treatment technology, in particular to an aeration device for water treatment, water treatment equipment using the same and a water treatment method.
Background
The water treatment objects mainly comprise natural water bodies and artificial water bodies. Such as river and lake water bodies, garden landscape water bodies, culture water bodies, fountains, swimming pools, water parks and the like. Most of the water bodies have the characteristics of low pollutant concentration, diversified pollution sources and great water quantity, have high requirements on water quality and sanitary conditions, and can continuously generate artificial or non-artificial pollution in the using process. Because the periodic replacement of the stored water in these water bodies causes huge waste of water resources and high cost, the water circulation treatment equipment is mostly adopted to purify these water bodies at present.
The root cause of the deterioration of the water quality of rivers and lakes is the eutrophication of water caused by the discharge of pollutants, so that a large number of oxygen-consuming plants and organisms such as algae are excessively proliferated, resulting in the lack of oxygen in the water, thereby destroying the original ecosystem of the water body.
Therefore, when the water quality of the river or the lake is treated, firstly, pollution sources around the river or the lake are intercepted and controlled. However, since the conditions of both banks of the river in some old cities are complex, the omission of scattered dark discharge openings still cannot be avoided, and particularly, the omission of the dark discharge openings on both sides of the box culvert can be avoided, so that the pollution to river water or lakes can be caused if the pollution cannot be effectively intercepted. Meanwhile, a large amount of continuous pollutants caused by the fact that some sewage pipe networks are connected with rainwater pipe networks in a staggered mode are discharged into rivers or lakes in a staggered mode, and water body pollution is caused.
Therefore, the principle of water circulation treatment is a fundamental solution by increasing the oxygen content of water in a water body. Further, a dissolved oxygen aeration method can be adopted to increase the oxygen content of the water body.
The water aeration purification technology can enhance the self-purification capacity of the river channel, improve the water quality and restore the ecological environment of the river channel by oxygenating the river channel. The quality of the aeration device not only affects the biochemical treatment effect of river water, but also directly affects the land occupation, investment and operation cost of a treatment field. The conventional aeration methods comprise: microporous aeration, mechanical aeration, and jet aeration.
The common microporous aeration device is easy to block to reduce the oxygenation capacity, and has the problems of high maintenance cost, inconvenient maintenance, complex installation and the like in operation. The mechanical aeration device has high installation cost and inconvenient maintenance. The small bubbles jetted from the diffusion port by the conventional jet device are easy to be gathered into large bubbles, and the large bubbles are difficult to be fused into liquid and rise to overflow the water surface, so that the air is not fully utilized, and the oxygen transfer coefficient and the oxygen charging capacity are reduced; the longer throat is beneficial to gas-liquid mixing, but the aeration flow resistance is increased, and the power efficiency of jet aeration is reduced.
Disclosure of Invention
In order to solve at least one of the technical problems, the aeration device for water treatment is simple to install, convenient to maintain and high in aeration efficiency.
According to an aspect of the present invention, there is provided an aeration apparatus for water treatment, comprising: the connecting mechanism is connected with each component of the aeration device; the floating mechanism enables the aeration device to float on the water surface; and efflux aeration equipment, discharge aeration equipment after mixing water and air, wherein, coupling mechanism sets up in the middle part of floating mechanism, and efflux aeration equipment is connected to this coupling mechanism's lower extreme, coupling mechanism includes working pump and air intake manifold, efflux aeration equipment includes efflux cavity and cyclone tube, under the effect of working pump, can make water pass through efflux cavity and get into cyclone tube, and the air can get into cyclone tube from air intake manifold, and mix with the water that comes from efflux cavity in this cyclone tube, discharge in the water outside aeration equipment through the export of cyclone tube with the water of air mixing, wherein, a plurality of cyclone tubes that set up around efflux cavity have length interval, the staggered evenly distributed mode about.
According to the aeration device provided by the embodiment of the invention, optionally, a plurality of cyclone pipes are symmetrically distributed on two sides of the jet flow chamber; or the jet flow chamber is circular, and a plurality of cyclone tubes are uniformly distributed on the circumference; or the jet flow chamber is in a polygonal shape, and the swirl pipes are uniformly distributed along the periphery of the polygon.
According to the aeration device of the embodiment of the present invention, optionally, the swirl tube extends distally from the jet chamber.
According to the aeration device of the embodiment of the invention, optionally, the aeration device comprises a water inlet grating, and water flows uniformly into the working pump from the periphery of the water inlet grating.
According to the aeration device of the embodiment of the invention, optionally, the water inlet grille is arranged below the pump housing, the water inlet grille comprises uniformly distributed sheet parts extending from the lower part of the pump housing, the sheet parts have shapes with the cross sections increasing from top to bottom, and/or the water inlet grille and the jet flow chamber are connected to form a whole.
According to the aeration device of the embodiment of the present invention, optionally, the working pump is disposed or placed above the jet flow chamber, the entire working pump is located inside the pump housing, and the pump cover plate is disposed above the working pump.
According to the aeration apparatus of the embodiment of the present invention, optionally, a protective cover is provided above the pump housing.
According to the aeration apparatus of the embodiment of the present invention, optionally, the floating mechanism includes: the device comprises a buoy, a sleeve and a fixed rod, wherein the buoy comprises one or a plurality of closed hollow cavities which are uniformly and symmetrically distributed, is fixedly connected with a connecting structure and provides buoyancy for the connecting structure or the integrally connected connecting structure and a jet aeration structure; a plurality of casings having an elongated hollow tubular shape and a plurality of fixing rods provided in association with the pontoon, one fixing rod being provided in each casing, one end of the fixing rod being insertable into the sludge at the bottom of the body of water, and a body portion of the fixing rod being slidable in the casing.
According to the aeration device of the embodiment of the invention, optionally, the cyclone tube comprises: the gas mixing device comprises a nozzle, a gas inlet branch pipe, a gas mixing pipe and a water outlet pipe, wherein the nozzle is communicated with one end of the gas mixing pipe, one end of the gas mixing pipe communicated with the nozzle is also communicated with one end of the gas inlet branch pipe, and the other end of the gas mixing pipe is communicated with the water outlet pipe.
According to the aeration device of the embodiment of the invention, the nozzle is a hollow pipe with a pipe orifice gradually reduced from the water inlet end to the water outlet end.
According to the aeration device provided by the embodiment of the invention, optionally, the air inlet branch pipe is communicated with the air inlet main pipe through the airflow channel, and the air inlet branch pipe is vertically connected with the air mixing pipe or is connected with the air mixing pipe in an inclined manner.
According to the aeration device provided by the embodiment of the invention, optionally, a spiral piece is arranged in the water outlet pipe, the spiral piece comprises a plurality of spiral pieces in the same direction, the spiral pieces are uniformly distributed in the water outlet pipe at intervals, or comprises a combination of a left spiral piece and a right spiral piece, and the left spiral piece and the right spiral piece are uniformly distributed in the water outlet pipe at intervals, or the spiral piece comprises a spiral strip.
According to another aspect of the present invention, there is provided a water treatment apparatus comprising the aforementioned aeration device.
According to still another aspect of the present invention, there is provided a water treatment method for water treatment using the aforementioned aeration apparatus or water treatment facility, the method comprising: under the effect of working pump, water enters into the efflux cavity through the filtration of grid that intakes in, and the nozzle of whirl pipe is passed through to the back, and water is from the nozzle blowout with higher speed, and spun water passes the front end that the gas-mixing pipe got into the outlet pipe, with the inspiratory air mixture of pipeline through the gas circuit to the bubble is by many times the cutting of spiraling under the effect of the intraductal spiral of outlet pipe, and later water is followed the outlet pipe rear end and is discharged the water.
According to the aeration device provided by the embodiment of the invention, one or more of the following technical effects can be realized: the structure is compact, and the integrity degree is high; the installation is simple, and the equipment is fixed; the uniform and symmetrical water outlet mode can enable the whole device to be self-balanced and has wide effective hydraulic influence area; one working pump has a plurality of water outlet holes at the same time, and the unique spiral flow pipe design has high energy efficiency ratio and high oxygen dissolving efficiency; the unique pump installation mode, no other operation parts, and convenient equipment maintenance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.
FIG. 1 is a schematic structural view of an aeration apparatus for water treatment according to an embodiment of the present invention;
FIG. 2 is a schematic top view of the aeration apparatus shown in FIG. 1;
FIG. 3 is a schematic left side view of the aeration apparatus shown in FIG. 1;
FIG. 4 is a schematic structural view of an aeration apparatus for water treatment according to another embodiment of the present invention;
fig. 5 is a schematic view of one structure of a floating mechanism of an aeration apparatus according to an embodiment of the present invention;
fig. 6 is a schematic view of another structure of a floating mechanism of an aeration apparatus according to an embodiment of the present invention;
fig. 7 is a schematic view of one structure of a jet mechanism of an aeration apparatus according to an embodiment of the present invention;
FIG. 8 is a schematic view of another structure of an aeration apparatus according to an embodiment of the present invention;
FIG. 9 is a schematic view showing a structure of a cyclone tube of an aeration apparatus according to an embodiment of the present invention;
FIGS. 10A and 10B are schematic views showing another structure of a swirling flow tube of an aeration apparatus according to an embodiment of the present invention, in which FIG. 10A is a partial cross-sectional view and FIG. 10B is a longitudinal cross-sectional view;
fig. 11 is a schematic view of air flow and water flow of an aeration apparatus according to an embodiment of the present invention, wherein ① indicates an air path and ② indicates a water path;
fig. 12 schematically shows the structure of a water inlet grill of an aeration apparatus according to an embodiment of the present invention.
Attached character
1 connecting mechanism
1.1 protective cover
1.2 Pump case
1.3 Pump Apron
1.4 working pump
1.5 air intake manifold
1.6 Water grid
2 Floating mechanism
2.1 float bowl
2.2 casing tube
2.3 dead lever
2.4, 2.41 fixing piece
2.5, 2.51 Stent
2.6 fixing plate
2.7 connecting rod
3 jet aeration mechanism
3.1 fluidic Chamber
3.1.1 gas flow channel
3.2 swirl tube
3.2.1 nozzle
3.2.2 air intake branch pipe
3.2.3 gas mixing pipe
3.2.4 Water outlet pipe
3.2.5 spiral piece
3.3 connecting piece
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Fig. 1 is a schematic structural view of an aeration apparatus for water treatment according to an embodiment of the present invention, fig. 2 is a schematic top view of the aeration apparatus shown in fig. 1, and fig. 3 is a schematic left view of the aeration apparatus shown in fig. 1. As shown in fig. 1, 2 and 3, an aeration apparatus according to an embodiment of the present invention includes: a connecting mechanism 1, a floating mechanism 2 and a jet aeration mechanism 3. Wherein the connecting mechanism 1 is used for connecting a plurality of components of the aeration device and is also used for installing a workpiece; the floating mechanism 2 can enable the aeration device to float on the water surface and adapt to the rising and falling changes of the water level, and the floating mechanism 2 can also enable the floating aeration device not to drift basically; the jet aeration mechanism 3 mixes water and air and discharges the mixed water and air. From the relative position perspective, as shown in fig. 1, the connection mechanism 1 is provided in the middle of the floating mechanism 2, and the lower end of the connection mechanism 1 is connected to the jet aeration mechanism 3.
Specifically, the connecting mechanism 1 comprises a protective cover 1.1, a pump cover 1.2, a pump cover plate 1.3, a working pump 1.4, an air inlet main pipe 1.5 and a water inlet grille 1.6.
Wherein, the working pump 1.4 is a power component of the aeration device and is used for pumping shallow water. The water inlet mode of the working pump 1.4 is that water flow uniformly flows into the periphery of the water inlet grating 1.6 and air is prevented from flowing in, so that the water flow speed of each inlet is reduced, the water surface can be uniformly changed, and the working pump 1.4 is prevented from being damaged by cavitation due to the generation of rotational flow.
In addition, as shown in fig. 1, the working pump 1.4 can be disposed or placed on the jet flow chamber 3.1 of the jet flow aeration mechanism 3, so that the whole working pump 1.4 is located inside the pump housing 1.2, and thus, the pump cover plate 1.3 is tightly covered and fixed above the working pump 1.4, so that the working pump 1.4 can be protected by the pump housing 1.2 and the pump cover plate 1.3, and the working pump 1.4 can also be conveniently and quickly installed and maintained. For example, when the aeration device provided by the embodiment of the invention is installed, the working pump 1.4 is only required to be placed in the pump housing 1.2, and then the pump cover plate 1.3 is covered and locked; the working pump 1.4 is convenient to disassemble and maintain, and the pump cover plate 1.3 is opened and then the working pump 1.4 is maintained or disassembled. Since the aeration device according to the embodiment of the present invention has no other vulnerable moving parts except the working pump 1.4, only the pump body of the working pump needs to be repaired, and the structure is very convenient.
The pump housing 1.2 may have a circular, square, oval or other shape and may have a hollow structure for receiving the working pump 1.4. An air intake manifold 1.5 may be provided outside the pump housing 1.2 as a passage for air to enter the aeration device. The intake manifold 1.5 may be a single tube or a plurality of tubes.
Optionally, a protective hood 1.1 may be provided above the pump housing 1.2, which may provide further protection for the working pump 1.4, for example to reduce or prevent damage to the working pump 1.4 from the sun and rain.
As shown in figure 1, the water inlet grille 1.6 is arranged below the pump housing 1.2, and the water inlet grille 1.6 is used for filtering water entering the aeration device and preventing floating objects in the water from entering the device to influence the use effect and the service life. The water inlet grille 1.6 may comprise evenly distributed sheet-like elements extending from the lower part of the pump housing 1.2, which may have a shape with an increasing cross-section from top to bottom, as shown in fig. 12, which is advantageous in increasing the water passing area and thus the water passing amount. Optionally, the other end of the water inlet grille 1.6 can be connected with the jet flow chamber 3.1 of the jet flow aeration mechanism 3 to form a whole, and the design of the structure not only enables the water inlet grille 1.6 to play a role in filtering water, but also enables the whole device to be connected, so that the integrated structure design is realized.
As shown in fig. 1 and 2, the floating mechanism 2 includes a buoy 2.1, a casing 2.2, a fixing rod 2.3, and a fixing member 2.4.
The pontoon 2.1 may be a closed hollow chamber which generates a large buoyancy force sufficient to float the aerator above the water surface. The shape of the pontoon 2.1 may be cylindrical (as shown in fig. 3), or it may be oval in cross-section (as shown in fig. 5), or it may be of another shape. The pontoon 2.1 may be fixedly connected to the connection structure 1, e.g. the pump housing 1.2 of the connection structure 1, providing buoyancy to the connection structure 1 or to the integrally connected connection structure 1 and the jet aeration structure 3.
Optionally, a plurality of casings 2.2 and a plurality of securing rods 2.3 are provided in cooperation with the buoy 2.1. For example, the casing 2.2 is arranged beside the buoy 2.1, sideways or through the buoy 2.1. The casing 2.2 may be in the form of an elongated hollow tube, a fixing rod 2.3 being provided in each casing 2.2, one end of the fixing rod 2.3 being insertable into the sludge in the bottom of the body of water, and the main body of the fixing rod 2.3 being slidable in the casing 2.2, such that, on the one hand, the fixing rod 2.3 may be used to fix the aeration device against movement in the presence of strong winds, etc., and, on the other hand, the entire device may float up and down along the fixing rod 2.3 when the water level changes. The lower part or end of the sleeve 2.2 may be connected to a fixing member 2.4, so that the swirl tube 3.2 of the jet aeration means 3 is supported by the fixing member 2.4. Alternatively, the swirl tube 3.2 can also be fixed by providing brackets 2.5 (as shown in fig. 4) at both ends of the pontoon 2.1. Under the action of the buoys 2.1 and the fixing rods 2.3, the aeration device according to the embodiment of the invention can float on the water surface in a relatively fixed manner in the horizontal direction. This kind of float formula structural style need not to build the mounting platform in addition, and engineering investment cost is few, and the installation is simple, rely on dead lever 2.3 with equipment fixed can, it is also very convenient if need remove this aeration equipment.
Figure 6 shows another configuration of the floatation mechanism. The floating mechanism shown in fig. 6 comprises a pontoon 2.1, a sleeve 2.2, a fixing bar 2.3, as well as a bracket 2.51 and a fixing element 2.41. The difference from the floating mechanism shown in fig. 1 is that: a plurality of floating cylinders 2.1 are uniformly and symmetrically distributed, the plurality of floating cylinders 2.1 are correspondingly connected through connecting rods 2.7, a fixing plate 2.6 can be fixedly connected to the middle part of the two connecting rods 2.7 and used for reinforcing the integral connection of the connecting rods 2.7, and two ends of the connecting rods 2.7 can be fixedly connected through sleeves 2.2; one end of the sleeve 2.2 is fixedly connected with the connecting rod 2.7, the other end of the sleeve is connected with the bracket 2.51, and the lower end of the bracket 2.51 is provided with a plurality of fixing pieces 2.41 for fixedly connecting the bracket 2.51 with the cyclone tube 3.2. The buoy 2.1 can be made of low-density materials such as plastics, foams and the like. The sleeve 2.2 can also play a role in switching connection besides sliding fit with the fixing rod 2.3. Other connecting structures or connecting methods can be used to fixedly connect the buoy 2.1, the sleeve 2.2 and the swirl tube 3.2 to each other. The floating mechanism adopts a plurality of standardized components, and has low structural cost and convenient installation.
The jet aeration mechanism 3 comprises a jet chamber 3.1, a cyclone tube 3.2 and a connecting piece 3.3. A plurality of cyclone tubes 3.2 are symmetrically and uniformly arranged around the jet flow chamber 3.1, and the plurality of cyclone tubes 3.2 are connected firmly through a connecting piece 3.3.
The upper part of the jet flow chamber 3.1 is provided with an airflow channel 3.1.1, the upper end of the airflow channel 3.1.1 is communicated with an air inlet main pipe 1.5, and the lower end is communicated with an air inlet branch pipe 3.2.2 of a cyclone pipe 3.2, thereby forming a complete air path pipeline.
The swirling flow pipes 3.2 are symmetrically and uniformly arranged around the jet flow chamber 3.1. There are many ways of such symmetrical and uniform distribution, for example, in fig. 2 a plurality of swirl tubes 3.2 are symmetrically distributed on both sides of the jet chamber 3.1; in fig. 7, the jet chamber 3.1 is circular and a plurality of swirl tubes 3.2 are uniformly distributed on the circumference; in fig. 8, the jet chamber 3.1 is polygonal in shape and the swirl tubes 3.2 are evenly distributed along the periphery of the polygon. The number of the cyclone tubes 3.2 can be 4, 5, 6, 7, 8 … … n (n is a natural number). The structure of the symmetrical and uniform distribution jet pipes ensures that gas-liquid mixture is simultaneously ejected from the surrounding jet pipes during jet flow, the same jet power is generated around the jet pipes, and the whole device can automatically balance on the water surface.
A plurality of cyclone tubes 3.2 that distribute around jet chamber 3.1 can have the same length, also can be length interval, the evenly distributed mode of staggering from top to bottom, and the bubble distribution scope that enables to come out from cyclone tube 3.2 is wider like this to prevent in advance that the bubble takes place to mix in aqueous and forms the big bubble and influence aeration effect.
Fig. 9 shows a schematic structure of a cyclone tube of an aeration apparatus according to an embodiment of the present invention. As shown in fig. 9, the cyclone tube 3.2 includes a nozzle 3.2.1, an air inlet branch tube 3.2.2, an air mixing tube 3.2.3, and an outlet tube 3.2.4. The nozzle 3.2.1 is communicated with one end of the gas mixing pipe 3.2.3, one end of the gas mixing pipe 3.2.3 communicated with the nozzle 3.2.1 is also communicated with one end of the gas inlet branch pipe 3.2.2, and the other end of the gas mixing pipe 3.2.3 is communicated with the water outlet pipe 3.2.4. Air enters the air mixing pipe 3.2.3 from the air inlet branch pipe 3.2.2, water entering the air mixing pipe 3.2.3 from the nozzle 3.2.1 in the air mixing pipe 3.2.3 is mixed, the water mixed with the air in the air mixing pipe 3.2.3 is discharged to the outside of the aeration device from the water outlet pipe 3.2.4, and the water and the air are continuously mixed in the process that water flows through the water outlet pipe 3.2.4. The material of the cyclone tube 3.2 can be various materials such as stainless steel, carbon steel, plastics and the like.
More specifically, the nozzle 3.2.1 may be a hollow tube with a gradually reduced orifice from the water inlet end to the water outlet end, and this structure can make the water flow form a spray shape at the water outlet end, increase the flow velocity, enhance the hydraulic turbulence intensity of the nozzle outlet, and increase the contact area between the water and the air. .
The air inlet branch pipe 3.2.2 is communicated with an air inlet main pipe 1.5 of the connecting mechanism 1 through an air flow channel 3.1.1. The air inlet branch pipe 3.2.2 and the air mixing pipe 3.2.3 can be vertically connected or connected with a certain inclination (as shown in fig. 9), and the inclined connection mode can enable air to enter more smoothly.
A screw 3.2.5 may be mounted in outlet pipe 3.2.4 to provide better mixing of water and gas. Spiral 3.2.5 may include a plurality of equally oriented spiral fins evenly spaced about outlet pipe 3.2.4 (as shown in fig. 9), or may include a combination of left and right spiral fins, with the left and right spiral fins evenly spaced about outlet pipe 3.2.4. Helix 3.2.5 may also be a helical ribbon (as shown in fig. 10A and 10B), and may be provided as a hollow structure in order to reduce the mass of the helix. The distribution quantity and the distribution form of the specific spiral sheets and the length of the spiral strip are determined by the flow rate, the lift and the power of the used working pump. The structure with the spiral part ensures that the air and the water are more fully mixed, the diffusion effect is good, and the oxygenation capacity is high.
The gas path of the aeration device according to the embodiment of the invention is shown as ① in fig. 11, gas firstly enters from the gas inlet main pipe 1.5, then enters the gas inlet branch pipes 3.2.2 of the swirl pipes 3.2 through the gas flow channels 3.1.1, and is mixed with water after the gas mixing pipes 3.2.3. the water flow path of the aeration device according to the embodiment of the invention is shown as ② in fig. 11, water enters the jet flow chamber 3.1 under the action of the working pump and then enters the nozzles 3.2.1 of the swirl pipes 3.2, and is mixed with gas in the gas mixing pipes 3.2.3.
The operation process of the aeration device according to the embodiment of the invention is as follows: under the action of the working pump 1.4, water enters the jet flow chamber 3.1 after being filtered by the water inlet grille 1.6, then passes through the nozzle 3.2.1 of the cyclone tube 3.2, the water is sprayed out from the nozzle 3.2.1 at a higher speed along with the diameter reduction of the nozzle 3.2.1, the water sprayed out at a high speed passes through the gas mixing tube 3.2.3 and enters the front end of the water outlet tube 3.2.4, partial vacuum is formed at the front end of the water outlet pipe 3.2.4, a large amount of air sucked through the gas circuit pipeline enters the front end of the water outlet pipe 3.2.4 through the gas mixing pipe 3.2.3, the air is mixed with water intensely, bubbles are formed just now, the oxygen absorption rate is high, then the bubbles are rotated to 'cutting' turbulent flow for many times under the action of the spiral piece 3.2.5 in the water outlet pipe 3.2.4 to generate more violent turbulent mixing action, and the bubbles are discharged to the water body from the water outlet at the rear end of the water outlet pipe 3.2.4 to form more tiny bubbles, because the diameters of the bubbles are very small, the rising speed in the water body is slow, thereby prolonging the time of oxygen dissolved in water and promoting the oxygen to be fully contacted and mixed with the water. In the operation process of the aeration device, the lengthened water outlet pipe 3.2.4 prolongs the high-pressure mixing time of the gas and the liquid, the gas and the liquid are more thoroughly mixed, and the dissolved oxygen efficiency is higher. According to the aeration device provided by the embodiment of the invention, a plurality of water outlet aeration holes can be generated under the action of one working pump, the dissolved oxygen efficiency is high, the energy efficiency ratio is very high, and the operation cost is low.
The water from the jet flow contains more gas, and the cavitation phenomenon is easy to occur when more gas enters the working pump. According to the aeration device provided by the embodiment of the invention, the cyclone tube 3.2 extends to the far end from the jet flow chamber 3.1, so that water sprayed from the cyclone tube 3.2 cannot enter the working pump 1.4 to form a circulation phenomenon, and the working pump is protected. Although the working pump 1.4 pumps water for shallow water, the water inlet mode of the working pump 1.4 is that water flows uniformly from the periphery of the water inlet grille 1.6 and air is prevented from flowing in, so that the water flow speed of each inlet is reduced, the water surface can be uniformly changed, and cavitation caused by the generation of rotational flow is prevented from damaging the working pump 1.4.
According to the aeration device and the water treatment equipment applying the aeration device provided by the embodiment of the invention, the requirements of water treatment capacity can be matched by selecting different combinations of the working pump and the jet aeration mechanism according to the requirements of pollution capacity at a pollution source.
The invention has wider application range and has very good effect in advanced treatment of water, micro-polluted water treatment, treatment of refractory organic matters, nitrification treatment of low-temperature sewage and low-temperature micro-polluted water treatment. The invention effectively improves the efficiency and purification effect of water treatment. The water quality is purified, and the treatment is started from the source, so that the pollution cannot be diffused.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.
Claims (14)
1. An aeration device for water treatment is provided,
it is characterized by comprising:
the connecting mechanism (1) is used for connecting all components of the aeration device;
a floating mechanism (2) for floating the aeration device on the water surface; and
a jet aeration mechanism (3) for mixing water and air and discharging the mixture out of the aeration device,
wherein,
the connecting mechanism (1) is arranged in the middle of the floating mechanism (2), the lower end of the connecting mechanism (1) is connected with the jet aeration mechanism (3),
the connecting mechanism (1) comprises a working pump (1.4) and an air inlet main pipe (1.5),
the jet aeration mechanism (3) comprises a jet chamber (3.1) and a cyclone tube (3.2),
under the action of the working pump (1.4), water can be made to enter the swirl tube (3.2) through the jet chamber (3.1), and
air can enter the swirl tube (3.2) from the air intake manifold (1.5) and mix in the swirl tube (3.2) with water from the jet chamber (3.1), the water mixed with air being discharged through the outlet of the swirl tube (3.2) into the body of water outside the aeration device,
wherein,
the plurality of cyclone tubes (3.2) arranged around the jet flow chamber (3.1) have the uniform distribution mode of long and short intervals and up and down staggering.
2. An aeration device according to claim 1,
a plurality of swirl tubes (3.2) are symmetrically distributed on two sides of the jet chamber (3.1); or
The jet flow chamber (3.1) is circular, and a plurality of swirl pipes (3.2) are uniformly distributed on the circumference; or
The jet flow chamber (3.1) is polygonal, and the vortex tubes (3.2) are uniformly distributed along the periphery of the polygon.
3. An aeration device according to claim 1, characterized in that the swirl tube (3.2) extends distally from the jet chamber (3.1).
4. An aeration device according to claim 1, characterized in that it comprises a water inlet grid (1.6), the water flow flowing uniformly into the working pump (1.4) from the periphery of the water inlet grid (1.6).
5. An aeration device according to claim 4, characterized in that said intake grate (1.6) is arranged below the pump housing (1.2), said intake grate (1.6) comprising evenly distributed sheet-like elements extending from the lower part of the pump housing (1.2) and having a shape with an increasing cross-section from top to bottom, and/or said intake grate (1.6) is connected to said jet chamber (3.1) to form a whole.
6. An aeration device according to claim 1, characterized in that the working pump (1.4) is arranged or placed above the jet chamber (3.1), the entire working pump (1.4) being inside the pump housing (1.2), and a pump cover plate (1.3) being arranged above the working pump (1.4).
7. An aeration device according to claim 6, characterized in that a protective cover (1.1) is provided above the pump housing (1.2).
8. An aeration device according to claim 1, characterized in that said floating means (2) comprises: a buoy (2.1), a sleeve (2.2) and a fixed rod (2.3),
wherein,
the buoy (2.1) comprises one or a plurality of closed hollow cavities which are uniformly and symmetrically distributed, is fixedly connected with the connecting structure (1) and provides buoyancy for the connecting structure (1) or the integrally connected connecting structure (1) and the jet aeration structure (3);
a plurality of said casings (2.2) and a plurality of said fixing bars (2.3) are arranged in cooperation with said buoy (2.1), said casings (2.2) having an elongated hollow tubular shape, one said fixing bar (2.3) being arranged in each casing (2.2), one end of the fixing bar (2.3) being insertable into the sludge at the bottom of the body of water, and a body part of the fixing bar (2.3) being slidable in said casing (2.2).
9. An aeration device according to claim 1, characterized in that the cyclone tube (3.2) comprises: a nozzle (3.2.1), an air inlet branch pipe (3.2.2), an air mixing pipe (3.2.3) and a water outlet pipe (3.2.4),
wherein,
the nozzle (3.2.1) is communicated with one end of the gas mixing pipe (3.2.3), one end of the gas mixing pipe (3.2.3) communicated with the nozzle (3.2.1) is also communicated with one end of the gas inlet branch pipe (3.2.2), and the other end of the gas mixing pipe (3.2.3) is communicated with the water outlet pipe (3.2.4).
10. An aeration device according to claim 9, characterized in that said nozzles (3.2.1) are hollow tubes with a mouth that becomes smaller from the water inlet end to the water outlet end.
11. An aeration device according to claim 9, characterized in that the air inlet branch pipes (3.2.2) are communicated with the air inlet main pipe (1.5) through air flow channels (3.1.1), and the air inlet branch pipes (3.2.2) are vertically or obliquely connected with the air mixing pipe (3.2.3).
12. An aeration device according to claim 9, characterized in that a screw (3.2.5) is provided in the outlet pipe (3.2.4), the screw (3.2.5) comprising a plurality of equally oriented screws evenly spaced within the outlet pipe (3.2.4), or a combination of left and right screws evenly spaced within the outlet pipe (3.2.4), or the screw (3.2.5) comprising a helical strip.
13. A water treatment apparatus, characterized by comprising an aeration device according to any one of claims 1 to 12.
14. A method of water treatment using the aeration apparatus of any one of claims 1 to 12 or the water treatment apparatus of claim 13, comprising: under the effect of working pump, water enters into the efflux cavity through the filtration of grid that intakes in, and the nozzle of whirl pipe is passed through to the back, and water is from the nozzle blowout with higher speed, and spun water passes the front end that the gas-mixing pipe got into the outlet pipe, with the inspiratory air mixture of pipeline through the gas circuit to the bubble is by many times the cutting of spiraling under the effect of the intraductal spiral of outlet pipe, and later water is followed the outlet pipe rear end and is discharged the water.
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| CN201810065565.6A CN108002562A (en) | 2018-01-23 | 2018-01-23 | Aerator and water treatment facilities and method for treating water for water process |
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| CN201810065565.6A CN108002562A (en) | 2018-01-23 | 2018-01-23 | Aerator and water treatment facilities and method for treating water for water process |
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