CN109534527A - A kind of low-purity oxygen plant accelerating black and odorous water ecosystem restoration - Google Patents

A kind of low-purity oxygen plant accelerating black and odorous water ecosystem restoration Download PDF

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Publication number
CN109534527A
CN109534527A CN201910082064.3A CN201910082064A CN109534527A CN 109534527 A CN109534527 A CN 109534527A CN 201910082064 A CN201910082064 A CN 201910082064A CN 109534527 A CN109534527 A CN 109534527A
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China
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water
air
internal diameter
inlet
purity oxygen
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曲久辉
彭剑峰
孙欣
刘锐平
刘会娟
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Tsinghua University
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Tsinghua University
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Priority to CN201910082064.3A priority Critical patent/CN109534527A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00Aeration of stretches of water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/03Pressure
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/22O2
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/02Specific form of oxidant
    • C02F2305/023Reactive oxygen species, singlet oxygen, OH radical
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • 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)

Abstract

The invention discloses a kind of low-purity oxygen plants for accelerating black and odorous water ecosystem restoration, comprising: has water inlet, air inlet and the water inlet air pipe of third water mouth out;The third water mouth that goes out of gas-liquid mixing pump, air pipe of intaking is connected with the import of gas-liquid mixing pump;With water inlet port and the dissolving of dissolved air water mouth out, port of intaking is connected with the outlet of gas-liquid mixing pump;Dissolved air water pipeline out, import are connected with the dissolved air water mouth that goes out of dissolving;And micro bubble releasing device, it is mounted on out the outlet of dissolved air water pipeline.The low-purity oxygen plant goes out microbubble technology and bleed manufacture bubbler techniques manufacture microbubble in conjunction with molten air elutriation, solve the problems, such as manufacturing process and operation it is all more troublesome, to bubble generator requirement is high, manufactured Air Bubble Size is uneven, cost is high.

Description

A kind of low-purity oxygen plant accelerating black and odorous water ecosystem restoration
Technical field
Present document relates to technical field of environmental equipment, espespecially a kind of low-purity oxygen plant for accelerating black and odorous water ecosystem restoration.
Background technique
Along with the quick process of industrialization and urbanization, a large amount of waste water and contaminated rainwash have little time to collect It is directly discharged into river with processing, along with the untreated discharge of agricultural effluent, the amount of being included in of Mixing Coefficient in Rectangular Channels has been more than purification energy Black smelly phenomenon is presented in power, river.The main governing measure of black and odorous water has physical method, chemical method and biological and ecological method and group Conjunction method.River aeration technology is preferentially adopted as a kind of small investment, quick Discussion On Measures of Rivers Pollution Treatment technology in many countries With.River aeration technology is manually to be filled with air (or oxygen) into water body the characteristics of being contaminated rear anoxic according to river, add Fast water reoxygenation process is restored and is enhanced the vigor of aerobic microbiological in water body to improve the oxygen level of melting of water body, make water body In polluter be purified, so as to improve the water quality in river.
River aeration technology mainly has following three classes method:
One, molten air elutriation goes out microbubble technology, and the bubble size of manufacture is small, uniform in size, and size is on 10~100 μm of left sides The right side, advantage is that microbubble can stop in water for a long time, the disadvantage is that manufacturing process and operation are all more troublesome;
Two, bleed manufactures microbubble technology, manufactures bubble diameter between 0.5~1.0mm, and molten large-minded, low energy consumption, Separation equipment is simple, but requires height to bubble generator, and Air Bubble Size is uneven;
Three, microbubble technology is precipitated in electrolysis, generates in such a way that electrolytic cell positive/negative plate generates bubble hydrogen and oxygen bubbles Microbubble of the diameter between 20~60 μm, the bubble size that this method generates is small, but polar plate loss is big, cost also very It is high.
Summary of the invention
At least one of in order to solve the above-mentioned technical problem, there is provided herein a kind of acceleration black and odorous water ecosystem is extensive Multiple low-purity oxygen plant goes out microbubble technology and bleed manufacture bubbler techniques manufacture microbubble in conjunction with molten air elutriation, solves manufacture stream Journey and operation are all more troublesome, require bubble generator the problem high, manufactured Air Bubble Size is uneven, cost is high.
Low-purity oxygen plant provided in an embodiment of the present invention, comprising: there is water inlet, air inlet and the water inlet tracheae of third water mouth out Road;The third water mouth that goes out of gas-liquid mixing pump, the water inlet air pipe is connected with the import of the gas-liquid mixing pump;With influent gas The dissolving of mouth and out dissolved air water mouth, water inlet port are connected with the outlet of the gas-liquid mixing pump;Dissolved air water pipeline out, Import is connected with the dissolved air water mouth that goes out of the dissolving;And micro bubble releasing device, it is mounted on going out for the dissolved air water pipeline out Mouthful.
Optionally, the micro bubble releasing device is micron-sized micro bubble releasing device.
Optionally, the water inlet air pipe includes: inlet pipeline, and import is the water inlet;With jet stream air inlet pipe, It is that third water mouth, the air inlet out are located at the jet stream air inlet that import, which is connected with the outlet of the inlet pipeline, exports, Guan Shang is simultaneously between the inlet and outlet of the jet stream air inlet pipe.
Optionally, the jet stream air inlet pipe includes the intake tunnel being sequentially communicated, mixing chamber and aqueous vapor channel out, it is described into The internal diameter of aquaporin and the internal diameter in the aqueous vapor channel out are respectively less than the internal diameter of the mixing chamber, and the air inlet is located at described mixed It closes on chamber.
Optionally, the mixing chamber includes abruptly increase section and converging transition, and the intake tunnel is connected to the abruptly increase section, described Aqueous vapor channel is connected to the converging transition out, and the air inlet is located in the abruptly increase section, and the internal diameter of the intake tunnel is tapered.
Optionally, the internal diameter of the intake tunnel rear end is greater than 6~10mm of internal diameter of front end, and the internal diameter of the abruptly increase section is big 4~8mm of internal diameter in the intake tunnel rear end, the internal diameter of the intake tunnel rear end are greater than the internal diameter in the aqueous vapor channel out 4~8mm.
Optionally, the micro bubble releasing device includes: into dissolved air water pipeline section;Conducting element is arranged described into dissolved air water pipe In section, the conducting element and described into being formed between dissolved air water pipeline section into dissolved air water channel, the side of the conducting element is gradually wealthy Guide face, the conducting element front end face recess have extension slot;Turbulent chamber, positioned at the conducting element front side and with it is described It is connected into dissolved air water channel, the anterior cavity wall of the turbulent flow chamber forms baffling portion, and the extension slot is connected to the turbulent chamber;With go out Microbubble water channel is arranged on the anterior cavity wall of the turbulent chamber.
Optionally, the guide face is tapered surface, and the extension slot is cone tank, the internal diameter in the microbubble water channel out It is gradually wealthy.
Optionally, the front end face of the conducting element and the radial distance between dissolved air water pipeline section are 6~10mm, institute The axial distance stated between the front end face of conducting element and the anterior cavity wall of the turbulent chamber is 2~4mm, the microbubble water channel out The internal diameter of rear end is 2~4mm, and the width of the outer end face of the cone tank is 0.5~2.5mm, and the cone angle of the cone tank is 80 ~100 degree, the cone angle of the tapered surface is 10~30 degree.
Optionally, regulating valve is installed on the air inlet, pressure sensor, the pressure are provided on the dissolving Sensor is connected with the regulating valve, and the top of the dissolving is provided with exhaust outlet, and exhaust is provided on the exhaust outlet The water inlet of valve, the water inlet air pipe is provided with strainer valve.
Optionally, the regulating valve is automatic regulating valve, and the exhaust valve is automatic exhaust steam valve.
Compared with prior art, low-purity oxygen plant provided by the invention goes out microbubble technology in conjunction with molten air elutriation and bleed manufactures Bubbler techniques are intake, air inlet by water inlet air pipe before entering gas-liquid mixing pump, are sufficiently mixed air water in equipment Dissolution forms dissolved air water, microbubble most is precipitated through micro bubble releasing device afterwards, the device structure is simple, equipment requirement is low, solves Manufacturing process and operation are all more troublesome, require bubble generator height, manufactured Air Bubble Size is uneven, cost is high Problem, the practicality is more preferable, and the microbubble of precipitation can effectively administer black and odorous water, purify water in river aeration.
The low-purity oxygen plant, the bubble diameter being precipitated can be stablized at 50 μm or so, and the microbubble of precipitation has following excellent Point:
1, the residence time is long in water: it is compared with Centimeter Level bubble, it, can be quick after Centimeter Level bubble generates in water body Rise to the water surface and rupture disappearance, the residence time in water body is too short, and dissolved oxygen effect is poor, and micro-nano bubble in water on The speed risen is slower, and the time from generating rupture can achieve tens seconds or even a few minutes.
2, itself pressurization dissolution: there are the contact interface of gas-liquid two-phase, the presence of gas-liquid interface makes the bubble surface in water Surface tension effects of the bubble by water are obtained, surface tension effects can compress the gas in bubble, so that gas is easier to It is dissolved into water, the surface tension that micro-nano bubble is subject to is much larger than Centimeter Level bubble, it can be gradually reduced, final completely molten Solution.
3, interface zeta potential is high: when micro-nano bubble is shunk in water, electrically charged ion is able to carry out on bubble interface Enrichment method, shows as dramatically increasing for zeta potential, can produce very high zeta potential value, zeta potential value before bubbles burst It is an important factor for influencing bubble surface absorption property, the size of value can generate the absorption property of micro-nano bubble interface Significantly influence.
4, generate hydroxyl radical free radical: micro-nano bubble is when shrinking, since the charge density of electric double layer increases rapidly, bubble When rupture, the acute variation that gas-liquid interface disappears discharges the energy of the negative ions savings of high concentration on interface, can swash at this time Hair generates a large amount of hydroxyl radical free radical.
These advantages of micro-nano bubble, make it in river aeration, can effectively administer black and odorous water, purify water.
The other feature and advantage of this paper will illustrate in the following description, also, partly become from specification It is clear that by implementing to understand herein.The purpose of this paper and other advantages can be by specifications, claims And specifically noted structure is achieved and obtained in attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand this paper technical solution, and constitutes part of specification, with this Shen Embodiment please is used to explain the technical solution of this paper together, does not constitute the limitation to this paper technical solution.
Fig. 1 is the schematic perspective view of low-purity oxygen plant described in one embodiment of the invention;
Fig. 2 is the front view structure diagrammatic cross-section of jet stream air inlet pipe in Fig. 1;
Fig. 3 is the front view structure diagrammatic cross-section of jet stream air inlet pipe in Fig. 1;
Fig. 4 is the left view schematic structural cross-sectional view of jet stream air inlet pipe shown in Fig. 3.
Wherein, the corresponding relationship in Fig. 1 to Fig. 4 between appended drawing reference and component names are as follows:
1 gas-liquid mixing pump, 2 dissolvings, 21 automatic exhaust steam valves, 22 exhaust nozzles, 3 go out dissolved air water pipeline, the release of 4 microbubbles Device, 41 into dissolved air water pipeline section, and 42 conducting elements, 43 into dissolved air water channel, and 44 extension slots, 45 turbulent chambers, 46 baffling portions, 47 go out micro- gas Soaked channel, 48 brackets, 51 inlet pipelines, 52 jet stream air inlet pipe, 521 intake tunnels, 522 mixing chambers, 523 go out aqueous vapor channel, 524 air inlets, 53 automatic regulating valves, 54 suction nozzles, 55 pressure sensors, 56 strainer valves, 6 shells, 61 display screens.
Specific embodiment
For the purposes, technical schemes and advantages of this paper are more clearly understood, below in conjunction with attached drawing to the reality of this paper Example is applied to be described in detail.It should be noted that in the absence of conflict, the spy in embodiment and embodiment in the application Sign can mutual any combination.
Many details are explained in the following description in order to fully understand herein, still, can also be adopted herein Implemented with other than the one described here mode, therefore, the protection scope of this paper is not by following public specific implementation The limitation of example.
Low-purity oxygen plant provided in an embodiment of the present invention, as shown in Figure 1, comprising: there is water inlet, air inlet and third water mouth out Water inlet air pipe;The third water mouth that goes out of gas-liquid mixing pump 1, air pipe of intaking is connected with the import of gas-liquid mixing pump 1;With into The dissolving 2 of third water mouth and out dissolved air water mouth, water inlet port are connected with the outlet of gas-liquid mixing pump 1;Dissolved air water pipeline out 3, import is connected with the dissolved air water mouth that goes out of dissolving 2;With micron-sized micro bubble releasing device 4, it is mounted on out dissolved air water pipe The outlet on road 3.
The low-purity oxygen plant goes out microbubble technology in conjunction with molten air elutriation and bleed manufactures bubbler techniques, is entering gas-liquid mixing pump 1 It is intake before by water inlet air pipe, air inlet, air water is made to be sufficiently mixed dissolution in equipment, dissolved air water is formed, most afterwards through micro- Microbubble is precipitated in bubble release 4, and the device structure is simple, equipment requirement is low, solves manufacturing process and operation is all number Tired, high to bubble generator requirement, manufactured Air Bubble Size is uneven, cost is high problem, the practicality is more preferable, is precipitated Microbubble in river aeration, can effectively administer black and odorous water, purify water.Arrow indicates aqueous vapor transmission direction in Fig. 1.
Specifically: it is intake before entering gas-liquid mixing pump 1 by water inlet air pipe, air inlet, due to gas-liquid mixing pump 1 Pump case in be in high voltage state, portion of air is soluble in water in the pump case of gas-liquid mixing pump 1, and in gas-liquid mixing pump 1 Impeller smashes undissolved air, stirs into water, and the water outlet of gas-liquid mixing pump 1 at this time includes dissolved air water and remaining undissolved air, And be pumped into dissolving 2, since 2 volume of dissolving is big, so that also increasing therewith into the air of dissolving 2 and the contact area of water Greatly, after remaining undissolved air and dissolved air water come into full contact with, partial air is dissolved in the water to form saturated dissolved gas water, saturated dissolved gas Water flows through micro bubble releasing device 4, and gas dissolved water is released with micron level bubble, forms milky microbubble water.
Wherein, as shown in Figure 1, water inlet air pipe includes: inlet pipeline 51, import is water inlet;With jet stream air inlet pipe 52, import is connected with the outlet of inlet pipeline 51, exports to go out third water mouth, and air inlet is located in jet stream air inlet pipe 52, simultaneously Between inlet and outlet in jet stream air inlet pipe 52.Moreover, regulating valve can be equipped on air inlet, regulating valve be connected with into Pressure sensor 55 has can be set on dissolving 2 in gas nozzle 54, and pressure sensor 55 is connected with regulating valve, dissolving 2 it is upper Portion is provided with exhaust outlet, and exhaust valve 21 is provided on exhaust outlet, and exhaust valve 21 connects exhaust nozzle 22, the water inlet of inlet pipeline 51 It is provided with strainer valve 56.Regulating valve is preferably configured to automatic regulating valve 53, and exhaust valve 21 is preferably configured to automatic exhaust steam valve 21.Benefit Pressure in dissolving 2 is acquired with pressure sensor 55, then automatic regulating valve 53 voluntarily adjusts according to pressure change, automatically controls Air inflow does not need to manually adjust air inflow, and operation is more stable, avoids causing 2 pressure of dissolving to decline because air inflow increases, So that the problem of gas-liquid mixing pump 1 dallies.
Low-purity oxygen plant further includes the shell 6 such as stainless steel material, is provided with human-computer interaction device, human-computer interaction on shell 6 Device includes display screen 61, for controlling equipment start-stop, the pressure for showing pressure sensor 55 etc..
Under working condition, gas-liquid mixing pump 1 is aspirated, and water is filtered to remove large granular impurity by strainer valve 56, by jet stream When air inlet pipe 52, flow velocity is accelerated.Air reaches in jet stream air inlet pipe 52 by suction nozzle 54 along automatic regulating valve 53, passes through with water One preliminary mixing, into gas-liquid mixing pump 1, due to being in high voltage state in the pump case of gas-liquid mixing pump 1, portion of air is in gas It is soluble in water in the pump case of liquid mixing pump 1, and the impeller in gas-liquid mixing pump 1 smashes undissolved air, stirs into water, this When the water outlet of gas-liquid mixing pump 1 include dissolved air water and remaining undissolved air, and be pumped into dissolving 2, due to 2 volume of dissolving Greatly, so that also increasing with it into the air of dissolving 2 and the contact area of water, remaining undissolved air sufficiently connects with dissolved air water After touch, portion of air is dissolved in the water to form saturated dissolved gas water, and the undissolved air of another part is by automatic exhaust steam valve 21 through arranging Gas nozzle 22 is discharged, and avoids undissolved air capacity persistent accumulation in dissolving 2 and occupies the volume in dissolving 2.Saturated dissolved gas water Micro bubble releasing device 4 is flowed through, gas dissolved water is released with micron level bubble, forms milky microbubble water.Entirely Manufacture microbubble process, pressure in 55 real-time monitoring dissolving 2 of pressure sensor, the dissolving detected according to pressure sensor 55 Pressure automatic regulating valve 53 opens and closes amplitude in 2, and then automatically adjusts air inflow.
In one exemplary embodiment, as shown in Fig. 2, jet stream air inlet pipe 52 includes the intake tunnel 521 being sequentially communicated, mixes Close chamber 522 and aqueous vapor channel 523 out, the internal diameter of the intake tunnel 521 and internal diameter in aqueous vapor channel 523 is respectively less than mixing chamber 522 out Internal diameter, air inlet is located on mixing chamber 522.Mixing chamber 522 includes that the converging transition of cylindrical abruptly increase section and cone is (tapered Angle can be set to 150 degree), intake tunnel 521 is connected to abruptly increase section, and aqueous vapor channel 523 is connected to converging transition out, air inlet 524 are located in abruptly increase section, and the internal diameter of intake tunnel 521 is tapered (taper angle can be set to 30 degree).
The water being inhaled into enters jet stream air inlet pipe 52 from intake tunnel 521, after the inner diameter wall of 521 front end of intake tunnel End it is small, flow rate of water flow is accelerated, and quick water flow enters mixing chamber 522, negative pressure can be formed in mixing chamber 522, thus air pass through into Port is inhaled into mixing chamber 522, while the converging transition of mixing chamber 522 reduces along water (flow) direction area of section, gas can be made along water Stream direction is compressed, and will form a preliminary mixing with water, most enters gas-liquid mixing pump 1 through water outlet gas channel 523 afterwards.
Specifically, the internal diameter of 521 rear end of intake tunnel is set greater than 6~10mm of internal diameter (such as 8mm) of front end, abruptly increase section Internal diameter be set greater than 4~8mm of internal diameter (such as 6mm) of 521 rear end of intake tunnel, the internal diameter setting of 521 rear end of intake tunnel For 4~8mm of internal diameter (such as 6mm) greater than aqueous vapor channel 523 out.
In one exemplary embodiment, as shown in Figure 3 and Figure 4, micro bubble releasing device 4 includes: into dissolved air water pipeline section 41;It leads Flow part 42, setting is into dissolved air water pipeline section 41, conducting element 42 and into being formed between dissolved air water pipeline section 41 into dissolved air water channel 43, The side of conducting element 42 is gradually wealthy guide face, and the front end face recess of conducting element 42 has extension slot 44;Turbulent chamber 45 is located at water conservancy diversion The front side of part 42 is simultaneously connected into dissolved air water channel 43, and the anterior cavity wall of turbulent chamber 45 forms baffling portion 46, extension slot 44 and turbulent flow Chamber 45 is connected to;Microbubble water channel 47 out is arranged on the anterior cavity wall of turbulent chamber 45.Guide face is set as tapered surface, extends Slot 44 is set as cone tank, and the internal diameter in microbubble water channel 47 is gradually wealthy out.Conducting element 42 can be mounted on by bracket 48 into molten In air water pipeline section 41.
Water flow is by entering micro bubble releasing device 4 into dissolved air water pipeline section 41, through guide face by water flow along into dissolved air water channel 43 Transmission reaches turbulent chamber 45, impacts in baffling portion 46, water flow is directed in cone tank, and in cone tank, water flow mutually bumps against It hits, turbulent flow aggravation, part dissolved gas is released in the form of microbubble in water flow, and then water flow enters microbubble water channel 47, the area of section due to going out 47 rear end of microbubble water channel acutely reduces relative to turbulent chamber 45, and water flow is greatly accelerated, is pressed It can reduce, dissolved gas is released completely in the form of microbubble, is transmitted when passing through microbubble water channel 47 with bladdery water When, the area of section due to going out microbubble water channel 47 is gradually increased, and with bladdery water flow, speed is reduced, and pressure energy increases, water Middle bubble is compressed, and bubble diameter further reduces, and the bubble of precipitation is micron order.
Specifically, the front end face of conducting element 42 and into the radial distance between dissolved air water pipeline section 41 be 6~10mm (such as 8mm), the axial distance between the front end face of conducting element 42 and the anterior cavity wall of turbulent chamber 45 is 2~4mm (such as 3mm), out microbubble The internal diameter of 7 rear end of aquaporin-4 is 2~4mm (such as 3mm), and the width of the outer end face of cone tank is 0.5~2.5mm (such as 1.5mm), The cone angle of cone tank is 80~100 degree (such as 90 degree), and the cone angle of tapered surface is 10~30 degree (such as 20 degree).
The low-purity oxygen plant, the bubble diameter being precipitated can be stablized at 50 μm or so, have the advantages that
1, the residence time is long in water: it is compared with Centimeter Level bubble, it, can be quick after Centimeter Level bubble generates in water body Rise to the water surface and rupture disappearance, the residence time in water body is too short, and dissolved oxygen effect is poor, and micro-nano bubble in water on The speed risen is slower, and the time from generating rupture can achieve tens seconds or even a few minutes.
2, itself pressurization dissolution: there are the contact interface of gas-liquid two-phase, the presence of gas-liquid interface makes the bubble surface in water Surface tension effects of the bubble by water are obtained, surface tension effects can compress the gas in bubble, so that gas is easier to It is dissolved into water, the surface tension that micro-nano bubble is subject to is much larger than Centimeter Level bubble, it can be gradually reduced, final completely molten Solution.
3, interface zeta potential is high: when micro-nano bubble is shunk in water, electrically charged ion is able to carry out on bubble interface Enrichment method, shows as dramatically increasing for zeta potential, can produce very high zeta potential value, zeta potential value before bubbles burst It is an important factor for influencing bubble surface absorption property, the size of value can generate the absorption property of micro-nano bubble interface Significantly influence.
4, generate hydroxyl radical free radical: micro-nano bubble is when shrinking, since the charge density of electric double layer increases rapidly, bubble When rupture, the acute variation that gas-liquid interface disappears discharges the energy of the negative ions savings of high concentration on interface, can swash at this time Hair generates a large amount of hydroxyl radical free radical.
These advantages of micro-nano bubble, make it in river aeration, can effectively administer black and odorous water, purify water.
Arrow indicates aqueous vapor transmission direction in Fig. 1, and "front", "rear", " tapered " in the application, " gradually wealthy " are along water flow The restriction that transmission direction carries out.
In conclusion low-purity oxygen plant provided by the invention, goes out microbubble technology in conjunction with molten air elutriation and bleed manufactures bubble skill Art is intake, air inlet by water inlet air pipe before entering gas-liquid mixing pump, air water is made to be sufficiently mixed dissolution in equipment, Dissolved air water is formed, microbubble most is precipitated through micro bubble releasing device afterwards, the device structure is simple, equipment requirement is low, solves manufacture Process and operation are all more troublesome, require high, manufactured Air Bubble Size is uneven, cost is high to ask bubble generator Topic, the practicality is more preferable, and the microbubble of precipitation can effectively administer black and odorous water, purify water in river aeration.
In description herein, term " installation ", " connected ", " connection ", " fixation " etc. be shall be understood in a broad sense, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection;It can be directly connected, can also lead to Intermediary is crossed to be indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood as the case may be Concrete meaning herein.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of this paper In example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example. Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more of the embodiments or examples with suitable Mode combine.
Although embodiment disclosed herein is as above, the content only implementation of use herein for ease of understanding Mode is not limited to herein.Technical staff in any this paper fields, do not depart from spirit disclosed herein and Under the premise of range, any modification and variation, but the patent protection model of this paper can be carried out in the form and details of implementation It encloses, still should be subject to the scope of the claims as defined in the appended claims.

Claims (10)

1. a kind of low-purity oxygen plant characterized by comprising
With water inlet, air inlet and the water inlet air pipe of third water mouth out;
The third water mouth that goes out of gas-liquid mixing pump, the water inlet air pipe is connected with the import of the gas-liquid mixing pump;
With water inlet port and the dissolving of dissolved air water mouth out, port of intaking is connected with the outlet of the gas-liquid mixing pump;
Dissolved air water pipeline out, import are connected with the dissolved air water mouth that goes out of the dissolving;With
Micro bubble releasing device is mounted on the outlet of the dissolved air water pipeline out.
2. low-purity oxygen plant according to claim 1, which is characterized in that the water inlet air pipe includes:
Inlet pipeline, import are the water inlet;With
Jet stream air inlet pipe, import are connected with the outlet of the inlet pipeline, export as the third water mouth out, the air inlet In the jet stream air inlet pipe and between the inlet and outlet in the jet stream air inlet pipe.
3. low-purity oxygen plant according to claim 2, which is characterized in that the jet stream air inlet pipe includes the water inlet being sequentially communicated Channel, mixing chamber and aqueous vapor channel out, the internal diameter of the intake tunnel and it is described go out aqueous vapor channel internal diameter be respectively less than it is described mixed The internal diameter of chamber is closed, the air inlet is located on the mixing chamber.
4. low-purity oxygen plant according to claim 3, which is characterized in that the mixing chamber includes abruptly increase section and converging transition, institute It states intake tunnel to be connected to the abruptly increase section, the aqueous vapor channel out is connected to the converging transition, and the air inlet is located at described In abruptly increase section, the internal diameter of the intake tunnel is tapered.
5. low-purity oxygen plant according to claim 4, which is characterized in that the internal diameter of the intake tunnel rear end is greater than front end 6~10mm of internal diameter, the internal diameter of the abruptly increase section are greater than 4~8mm of internal diameter of the intake tunnel rear end, the intake tunnel rear end Internal diameter be greater than it is described go out aqueous vapor channel 4~8mm of internal diameter.
6. low-purity oxygen plant according to claim 1, which is characterized in that the micro bubble releasing device includes:
Into dissolved air water pipeline section;
Conducting element, setting into dissolved air water pipeline section, the conducting element and described are formed between dissolved air water pipeline section into molten described Gas-water channel, the side of the conducting element are gradually wealthy guide face, and the front end face recess of the conducting element has extension slot;
Turbulent chamber, positioned at the conducting element front side and be connected to described into dissolved air water channel, it is described turbulent flow chamber anterior cavity wall shape At baffling portion, the extension slot is connected to the turbulent chamber;With
Microbubble water channel out is arranged on the anterior cavity wall of the turbulent chamber.
7. low-purity oxygen plant according to claim 6, which is characterized in that the guide face is tapered surface, and the extension slot is The internal diameter of cone tank, the microbubble water channel out is gradually wealthy.
8. low-purity oxygen plant according to claim 7, which is characterized in that the front end face of the conducting element and described into dissolved air water Radial distance between pipeline section is 6~10mm, the axial direction between the front end face of the conducting element and the anterior cavity wall of the turbulent chamber Distance is 2~4mm, and the internal diameter of the microbubble water channel rear end out is 2~4mm, and the width of the outer end face of the cone tank is 0.5~2.5mm, the cone angle of the cone tank are 80~100 degree, and the cone angle of the tapered surface is 10~30 degree.
9. low-purity oxygen plant according to any one of claim 1 to 8, which is characterized in that be equipped with tune on the air inlet Valve is saved, is provided with pressure sensor on the dissolving, the pressure sensor is connected with the regulating valve, the dissolving Top be provided with exhaust outlet, be provided with exhaust valve on the exhaust outlet, the water inlet of the water inlet air pipe is provided with filtering Valve, the micro bubble releasing device are micron-sized micro bubble releasing device.
10. low-purity oxygen plant according to claim 9, which is characterized in that the regulating valve is automatic regulating valve, the exhaust Valve is automatic exhaust steam valve.
CN201910082064.3A 2019-01-28 2019-01-28 A kind of low-purity oxygen plant accelerating black and odorous water ecosystem restoration Pending CN109534527A (en)

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Application publication date: 20190329