CN108404700B - Airlift type rotary circulation mixing device without inner guide cylinder - Google Patents

Abstract

The invention provides an air-lift type swirl-circulation high-efficiency circulating mixing device without an inner guide tube, which utilizes a guide component including a stator and a rotor, the rotor is provided with a liquid nozzle, the liquid nozzle is connected with a liquid guide pipe, and the liquid nozzle is connected to the liquid guide pipe. The guide tube is arranged inside the rotor and the stator, and a gas outlet is also arranged on the guide member, the gas outlet is communicated with the gas guide tube, and a mixing device including the guide member is provided. The device uses circulating liquid to drive the rotating nozzle to rotate and spray the liquid material to strengthen the direct mixing of the radial material. At the same time, the reaction or heating or working gas is introduced near the nozzle, and the liquid material and gas are fully dispersed by the rotating liquid flow, and the upward force is generated by the gas lift. The circulating flow strengthens the full mixing of materials in the axial direction, which overcomes the shortcomings of the traditional mixing device of the diversion cylinder, which is complex in structure, easy to scale, and difficult to remove the outer interlayer.

Description

Airlift type rotary circulation mixing device without inner guide cylinder

Technical Field

The invention provides a novel rotary-circulation-type efficient mixing device which can effectively improve mixing by adjusting the flow rate of gas and liquid.

Background

In the production process of products in the industries of chemical industry, pharmacy, water treatment, metallurgy, food and the like, mixing is often involved, a motor and a transmission device are required to drive a huge stirring paddle in a traditional mixing device, a stirrer motor is generally installed at the top of a kettle body and is generally vertically arranged, the rotating speed of the motor needs to be adjusted through a speed reducer, and then a stirring shaft and the stirring paddle are driven to rotate through a coupler. The mechanical stirring and mixing device has a series of defects of large volume, high manufacturing cost, high energy consumption, obvious amplification effect, high installation space, poor mixing effect and the like.

The air-lift tower mixer is a new generation of high-efficiency energy-saving equipment which is internally provided with a circular guide cylinder and is used for introducing gas from the interior or the exterior of the cylinder to generate internal circulation or external circulation to push the gas and the liquid to be fully and circularly mixed, and the air-lift tower mixer well utilizes the lift force of the gas and the density difference in the internal circulation and the external circulation to realize effective axial mixing and rapid circulation without stirring. The guide cylinder in the tower well separates ascending fluid from descending fluid, but the tower type device with the guide cylinder inside has the problems of complex structure, narrow space between the inner wall of the tower and the outer wall of the guide cylinder, easy scaling, difficult cleaning and maintenance, possible dead zone, large height-diameter ratio, incapability of circulating current due to the fact that the liquid level is lower than the guide cylinder, necessity of keeping the lowest liquid level, inapplicability to a solid-liquid system and the like, and needs to be further improved.

Aiming at the defects of the traditional mechanical stirring mixer and the air-lift type reactor, the invention further integrates the advantages of three typical mixing devices on the basis of strengthening radial mixing by taking a rotary nozzle as a stirring power source in the earlier stage and directly mixing materials through jet flow and rotation driving, particularly strengthens the dispersion effect of lifting force and rotary jet generated by introducing gas on bubbles on the basis of rotational flow mixing, and simultaneously strengthens the mixing among phases, radial directions and axial directions, thereby inventing a rotary circular flow mixed type efficient novel general mixing device without an inner guide cylinder. The device has simplified current mechanical stirring and gas lift tower device structure greatly, overcome shortcomings such as traditional mixing apparatus complicacy, the cost is high, easy scale deposit, the novel energy-efficient equipment that utilizes multiple means such as radial, axial and material efflux and heterogeneous system interface dispersion to mix the process and strengthen has been opened up, this kind of material dynamic type mixed mode with gas and liquid promotion in coordination, can show to improve and enlarge the effect, replace traditional mechanical stirring blender completely, traditional gas lift tower mixer and spiral-flow mixer have been optimized simultaneously, all can obtain fine mixed effect in cauldron and tower container. The invention can improve the material mixing and mass transfer among heterogeneous systems, particularly can well improve the oxygen increasing effect when being applied to biological fermentation and sewage treatment, and greatly reduces the energy consumption of aeration.

Disclosure of Invention

The invention mainly aims at the problems of complex structure, low circumferential motion energy consumption, obvious amplification effect, poor mixing effect, limited material quantity, a series of processing and use caused by a draft tube in an airlift tower reactor and the like of the existing mechanical mixing device, and creates a novel efficient energy-saving universal mixer which has simpler structure, better mixing effect, no height-diameter ratio limitation and feeding liquid level limitation, small amplification effect, simpler device structure and lower investment and operation cost on the basis of the prior research and development results. Through simple regulation of rotation speed, gas or liquid flow and pressure, mixing apparatus and technological conditions suitable for various systems may be developed. The swirling flow mixing system which is based on the direct injection of the material with pressure and the introduction of gas to enhance mixing can effectively promote convection, vortex and molecular diffusion.

In order to solve the technical problems, the invention provides a flow guide component, which comprises a stator and a rotor, wherein a liquid nozzle is arranged on the rotor and is connected with a liquid flow guide pipe, the liquid flow guide pipe is arranged inside the rotor and the stator, a gas outlet is also arranged on the flow guide component, and the gas outlet is communicated with the gas flow guide pipe.

Preferably, in the above flow guide part, the gas outlet in the flow guide part is disposed above or below the liquid nozzle, or the gas outlet is disposed side by side with the liquid nozzle, or the gas outlet is shared by the liquid nozzle, or the gas outlet is disposed above and around the liquid nozzle, or the gas outlet is disposed above and below the liquid nozzle, or the gas outlet is disposed around and below the liquid nozzle.

Preferably, in the above flow guide part, the number of the liquid nozzles is one or more, and the nozzles are fan nozzles, U-shaped wide-angle nozzles, V-shaped wide-angle nozzles, cavitation nozzles, or nozzles with direct holes or slots.

Preferably, in the above flow guide member, the stator is located above the rotor or below the rotor.

Preferably, in the above flow guide part, the gas outlet is an annular gas outlet or a porous gas outlet, and when the gas outlet is a porous gas outlet, the number of the porous gas outlets is one or more.

Preferably, in the flow guide member, the direction in which the liquid nozzle ejects the liquid is deviated from a linear direction of the center point of the liquid nozzle from the axis of the rotor, and a reaction force of the liquid ejected from the liquid nozzle acts on the nozzle to rotate the rotor.

The invention also provides an air-lift type rotary circulation mixing device without an inner guide cylinder, which is characterized by comprising a container and the guide component, wherein the guide component is positioned in the container, a liquid guide pipe of the guide component is communicated with a liquid fluid pipeline, and a gas guide pipe of the guide component is communicated with a gas fluid pipeline.

Preferably, in the air-lift type swirling flow efficient circulation mixing device, the number of the flow guide parts is multiple, and each flow guide part is connected with the liquid fluid pipeline and the gas fluid pipeline through the liquid flow guide pipe and the gas flow guide pipe.

Preferably, in the air-lift type cyclone high-efficiency circulation mixing device, the container is a kettle, a tower, a pool, a tank or a natural or artificial water body needing to be treated.

Preferably, in the above-mentioned airlift cyclone high efficiency circulating mixing apparatus, the liquid pressure in the liquid fluid line is higher than the pressure of the dispersion, and the gas pressure in the gaseous fluid line is sufficient to overcome the difference in the static pressure of the liquid.

Preferably, in the air-lift type swirling flow high-efficiency circulation mixing device, the liquid fluid pipeline is connected with a liquid pressurizing device, and the gaseous fluid pipeline is connected with a gas pressurizing device.

Preferably, in the gas-lift cyclone high-efficiency circulation mixing device, the liquid pressurizing device is a circulation pressurizing liquid pump or a circulation gas compressor, or a container with a high liquid level or a liquid container with high-pressure gas.

Preferably, in the air-lift type high-efficiency circulation mixing device, the gas pressurizing device is an air compressor or a container containing high-pressure gas.

Preferably, in the gas-lift cyclone high-efficiency circulation mixing device, the liquid entering the liquid pressurizing device is derived from the liquid in the container or is derived from other liquid than the liquid in the container.

Preferably, in the gas lift type cyclone high efficiency circulation mixing apparatus, the gas introduced into the gas pressurizing means is derived from a circulation gas in the vessel or another gas other than a gas in the vessel.

Preferably, in the air-lift type cyclone high-efficiency circulation mixing device, the number of the containers is multiple, one or more flow guide parts are arranged in each container, and the flow guide parts in each container are connected with the liquid fluid pipeline and the gaseous fluid pipeline.

Preferably, in the above-mentioned airlift cyclone high-efficiency circulating mixing apparatus, each of the vessels is a closed vessel, each of the closed vessels is configured to supply gas to the gas pressurizing means through a gas line provided in an upper portion of the vessel, and each of the vessels is configured to supply liquid to the liquid pressurizing means through a liquid line provided in a bottom portion of the vessel.

Preferably, in the air-lift type swirling flow high-efficiency circulation mixing device, the device further comprises a heating device or a cooling device, the heating device or the cooling device is arranged outside or inside the container and is used for heating and cooling the container, or is used for heating or cooling the liquid to be fed into the liquid pressurizing device, or is used for heating or cooling the gas fed into the gas compression device.

Preferably, in the air-lift type cyclone high-efficiency circulation mixing device, the device further comprises a detection device, and the detection device comprises one or more of a liquid detector or a gas detector in the system.

Preferably, in the air-lift type cyclone high-efficiency circulation mixing device, the device further comprises a control device, and the control device is connected with one or more of a liquid fluid pipeline valve, a gaseous fluid pipeline valve, a gas exhaust outlet valve of the container and a liquid exhaust outlet valve of the container.

The invention also provides a method for mixing solution or gas and liquid by using the airlift type swirling flow efficient circulating mixing device, which comprises the following steps:

step 1) adding liquid A into a suitable container to enable the liquid level to be higher than a liquid nozzle and a gas outlet, and pressurizing and inputting liquid B into a liquid fluid pipeline;

step 2) injecting liquid B into the container below the liquid level of liquid A through the liquid nozzle, compressing the gas and then conveying the gas to the gas outlet through the gaseous fluid pipeline, and injecting the gas into the container below the liquid level of liquid A.

Preferably, in the above method, the liquid a and the liquid B are the same liquid or different liquids.

Preferably, in the above method, the gas is injected to the vicinity of the rotary head below the liquid a in the container.

Preferably, in the above method, the introduced gas may be a reaction gas or heating steam to be introduced, or air or nitrogen as a working medium or a working medium circularly compressed by a closed system.

Preferably, in the method, the rotating speed of the spray head is 100-300 revolutions, and the effect is optimal.

Preferably, in the method, the effect is best when the diameter of the liquid rotational flow generated by the liquid nozzle is about one third of the diameter of the container, and the effect is best when the hourly circulation or introduction amount of the gas and the liquid is 4-5 times of that of the mixed liquid material. When the volume of the circulating gas exceeds half of the volume of the liquid, circulating current can be generated.

The invention has the following advantages:

(1) the flow guide component realizes the mixed injection of liquid and gas, not only realizes the full stirring of the liquid by the gas, but also realizes the full mixing of the gas serving as a reaction medium with the liquid, simultaneously improves the stirring speed of a reaction solution by the liquid mixing mode, realizes the self-rotation pushing of the liquid nozzle by the liquid adding, and realizes the mixing by the gas outlet and the liquid outlet in a required gas-liquid mixing mode. The gas-liquid mixing efficiency is improved, and the gas reaction medium or the gas reaction medium can be used as a reaction raw material and a stirring tool of a reaction system.

(2) The invention utilizes the jet flow generated when the pressurized fluid is sprayed out from the rotor liquid nozzle and the reaction force generated by the power nozzle to push the spray head to rotate, provides the radial mixing and material rotation mixing kinetic energy in a way of directly mixing the materials, sprays the rotating liquid flow outwards and simultaneously disperses and pushes the introduced gas to the periphery to form a central gas-liquid uniform mixing area, and the upward lifting force of the gas can strengthen the axial mixing force and the circulation of the material flow to generate the internal circulation in a boiling state similar to that of the electric furnace 'boiling water'. The continuously sprayed rotating liquid flow and the mixing mode of simultaneously introduced gas not only strengthen radial mixing and diffusion, but also effectively promote the dispersion and the circumferential rotating diffusion of the gas. Through the regulation of gas-liquid pressure and flow, a high-efficiency rotary circulation system can be formed, convection, vortex and molecular diffusion are greatly enhanced, and the device is suitable for mixing various actual systems.

(3) The novel device is very effective for uniform aeration and increasing gas dispersibility and solubility, can realize the high-efficiency operation of the rotating ring fluid of the reaction system no matter whether a guide cylinder exists or not, can form a higher rotating ring fluid system even under the condition of not needing the guide cylinder, and well overcomes the defects of the traditional gas lift tower type mixing device.

(4) The new device generates jet and swirl flow by means of kinetic energy input by system or circulating material and the swirl flow field is forced to form jet flow and swirl flow, so that it can strengthen mass and heat transfer.

(5) The novel mixed mode can be widely applied, the developed novel device can be large or small, can be high or low, can be used for more or less materials, can be connected in series or in parallel, can be provided with a plurality of pumps, can be opened and closed, and containers such as kettles, towers, pools, tanks and tanks or artificial or natural water bodies can be reformed according to local conditions. The novel high-efficiency energy-saving mixing equipment system is simple in structure, suitable for various spaces and good in mixing and dispersing effects. The method can be widely applied to gas phase, liquid phase, gas-liquid, gas-solid two-phase and gas-liquid-solid three-phase systems and mixing, reacting and separating processes.

Drawings

FIG. 1 is a schematic structural view of a swirling mixing device according to a first embodiment of the present invention;

FIG. 2 is a schematic structural view of a swirling mixing device according to a second embodiment of the present invention;

FIG. 3 is a schematic structural view of a swirling mixing device according to a third embodiment of the present invention;

FIG. 4 is a schematic structural view of a swirling mixing device according to a fourth embodiment of the present invention;

FIG. 5 is a schematic structural view of a flow guide member in a mixing device according to an embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating a mixing principle of a swirling mixing device according to an embodiment of the present invention;

FIG. 7 is a graph showing a comparison of mixing effects at different bubble diameters in a cyclonic mixing apparatus according to an embodiment of the present invention;

FIG. 8 is a graph showing a comparison of mixing effects at different gas flow rates in a cyclonic mixing apparatus according to an embodiment of the present invention;

FIG. 9 is a graph showing a comparison of mixing effects at different liquid flow rates in a cyclonic mixing apparatus according to an embodiment of the present invention;

FIG. 10 is a graph showing the relationship between pressure and rotational speed in the swirling mixing device according to the embodiment of the present invention;

FIG. 11 is a graph showing the relationship between the liquid flow rate and the rotational speed in the swirling mixing device according to the embodiment of the present invention;

FIG. 12 is a graph showing the relationship between the number of the fan-shaped nozzles and the rotational speed in the swirling mixing device according to the embodiment of the present invention; FIG. 13 is a graph showing the relationship between the amount of dissolved oxygen and time in the swirling mixing device according to the embodiment of the present invention;

1-a flow guide device; 2-a fluid transport portion; 3-a container part; 4-a detection moiety; 5-a flow guide component; 6-a gaseous power component; 7-a liquid power component; 8-liquid fluid line; 9-gaseous fluid line; 10-a liquid flow meter; 11-a gas flow meter; 12-a probe; 13-a detector; 14-a recorder; 15-an outer container; 16-a stator; 17-liquid draft tube; 18-a gas draft tube; 19-annular gas distribution port; 20-a liquid nozzle; 21-rotor.

Detailed Description

The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings. 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 embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

As shown in fig. 1-6, the present embodiment provides an airlift swirling flow high-efficiency circulating mixing device without an inner guide cylinder, which comprises a guide device 1; a fluid transportation part 2 consisting of a liquid circulation system consisting of a liquid circulation pump or a direct pressurized liquid material and a liquid conveying pipeline and an air compressor or a pressurized reaction or gas heating material or a gas circulation compression system serving as a working medium; a vessel portion 3 having a tank or a column as a main body; a detection part 4 consisting of a detector and a material regulating valve. The flow guide device 1 is positioned in the reaction vessel 3, is connected with the liquid power part 7 through the liquid fluid pipeline 8, is connected with the gaseous power part 6 through the gaseous fluid pipeline 9, the liquid flow meter 10 is arranged on the liquid fluid pipeline 8, the gas flow meter 11 is arranged on the gaseous fluid pipeline 9, the liquid power part 7 sprays the fluid out of the liquid nozzle 20 of the flow guide part 5 through the pipeline 8, so that power is provided to enable the fluid to rotate, and the gaseous power part 6 sprays the gas out of the annular gas distribution opening 19 of the flow guide part of the flow guide device 1 through the pipeline, so that circular flow is formed. Generally, the liquid with pressure provides rotation power, and the gas provides lift force, so that a rotation circulation mixing system is formed.

The fluid transportation part 2 is used for conveying the fluid to be mixed into the flow guide device 1 for mixing; the flow guide device 1 comprises a flow guide part 5 and a partial pipeline for conveying gas and liquid to the flow guide part, wherein the flow guide part comprises a stator 16, a liquid flow guide pipe 17, a gas flow guide pipe 18 and an annular gas distribution opening 19; the liquid jet nozzle 20 and the rotor 21, a fluid chamber and the liquid jet nozzle 20 are arranged inside the rotor 21, the liquid jet nozzle 20 is used for driving the rotor 21 to rotate relative to the stator 16 by a part of fluid from the fluid chamber, the other part of fluid in the fluid chamber is jetted from the other jet nozzles 20, and the annular gas distribution opening 19 is used for forming an annular gas flow by jetting gas from the gas guide pipe 18 and driving the fluid inside the container 3 to form a circulating flow.

It should be noted that the nozzle includes a power nozzle and a straight nozzle, and the power nozzle refers to a nozzle having an outlet with a corner. The reaction force of the fluid sprayed out of the power nozzle acts on the power nozzle to push the whole rotor to rotate.

One or more mixing containers 3 are provided, and one or more diversion devices 1 are provided in each mixing container 3.

It should be noted that, after the fluid to be mixed is sprayed out of the diversion device 1, the diversion device 1 can be placed in any container, such as a pool, a solution tank, etc.

Example 2

Fig. 1 to 4 show different embodiments of the mixing device. Fig. 1 shows a first embodiment of a swirl mixing device, in which one end of the flow guide device 1 projects into the middle of the mixing vessel 3; fig. 2 shows a second embodiment of the mixing device, in which the deflector 1 is sprayed upwards at the bottom of the container 3; fig. 3 shows a third embodiment of the mixing device, the mixing fluid coming from an outer vessel 15 outside the reaction vessel 3; fig. 4 shows a fourth embodiment of the mixing device, closed, with a plurality of containers connected in series, inside which the gas circulates.

Example 3

Fig. 5 is a schematic structural diagram of a flow guide part in a swirling mixing device provided in an embodiment of the present invention. The guide device is mainly composed of a guide part 5, the basic principle of the guide part 5 is that the guide device is composed of five parts, namely a stator 16, a liquid guide pipe 17, a gas guide pipe 18, an annular gas distribution opening 19, a rotor 21 and a liquid spray head 20, gas is sprayed out from the annular gas distribution opening 19 through the gas guide pipe 18, liquid is sprayed out through the liquid guide pipe 17 and the liquid spray nozzle 20 on the rotor 21, and the stator 16 is driven to rotate by the liquid spray nozzle 20.

Specifically, the liquid nozzle 20 is arranged on the rotor, and is connected with the stator 16 through a bearing, the bearing is connected with the stator 16 and the rotor 21, the connection mode of the rotor 21 and the bearing can adopt various fixing forms such as threaded connection and welding, the size of the inner cavity of the rotating head can be determined according to the requirement, the opened threaded hole is used for connecting the liquid nozzle 20, the bearing can adopt one or more deep groove ball bearings to be used in combination, and also can adopt one or more deep groove ball bearings and an axial thrust bearing to be used in combination, wherein the diameters of the gas guide pipe and the liquid guide pipe can be adjusted according to the requirement, and the opening position of the annular air distribution port 19 can also be adjusted according to the requirement.

The flow guide part 5 can be in various structural forms such as bullet shape, olive shape, round shape, square shape, long column shape, transverse tube shape and the like. The liquid nozzles 20 of the flow guiding member 5 may be liquid nozzles 20 providing rotation alone, or a combination of one or more liquid nozzles 20 providing rotation and one or more top liquid nozzles 20, and the liquid nozzles 20 may be provided with spray holes, which are not limited in number, but in principle the sum of the open areas does not exceed the cross-sectional area of the connecting pipe; the installation angle and the spraying direction of the liquid nozzle 20 can be any angle, the spraying form can be fine-hole spraying, atomizing nozzle, small liquid flow spraying or the combination thereof, and the spraying angle can be reasonably determined according to the rotating speed and the specific requirements of the system.

It should be noted that the liquid nozzles 20 in the flow guide 5 may be of any type known in the art. For example, the flow guide member 5 is a nine-nozzle flow guide member or a five-nozzle flow guide member, and the liquid nozzle 20 is a U-shaped wide-angle nozzle, a V-shaped wide-angle nozzle, a fan-shaped nozzle, or a cavitation nozzle. The configuration and type of the flow guide member 5 and the liquid ejection nozzle 20 are not limited to the above examples. The liquid nozzles 20 can be distributed around the rotor, the installation angle of the liquid nozzles 20 can also be designed according to the requirement, the liquid nozzles 20 can also be installed at the bottom of the flow guide part 5, and the angle of the liquid nozzles 20 can also be adjusted, such as 45 ℃. The shape of the liquid ejection nozzle 20 is also various, and the length of the liquid ejection nozzle 20, the aperture, the angle of the outlet corner, and the like may vary. It should be noted that the liquid nozzles 20, which are identical in shape, may be differently named by different manufacturers on the market.

From the installation point of view, the installation and the composition of the liquid nozzle 20 are various, and the installation position of the flow guide part 5 in a mixing system is also variable; from the feeding perspective, the downward, upward and lateral feeding depends on the installation direction of the diversion component, the materials can be pressurized and fed by a pump, circularly fed by a pump, directly fed and mixed by a pressurized liquid through a pipeline, and the like, and the materials can be a single system, a series system, a parallel system and the like; from the perspective of materials, the material system such as pure gas, pure liquid, gas-liquid, liquid-solid such as solution, gas-liquid-solid and the like can be used as a material stirrer, and can also be used as a mixing device of various fluids; from the angle of equipment, the device is not only in the shape of a stirring kettle barrel, but also can be used in various forms such as common stirring kettles, barrels, tower equipment, square sewage pools and the like, natural lakes, rivers and the like, a single flow guide part can be used as mixing equipment, the flow guide part can be used in a coupling mode with traditional mechanical stirring equipment and the like, and even a heat exchanger.

Example 4

Fig. 6 shows a schematic illustration of the mixing principle with a swirl mixing device. As shown in FIG. 6, under the action of the liquid nozzle 20, on one hand, the fluid inside the stirring tank has an effect of circularly flowing from the center to the periphery, and on the other hand, the fluid has an effect of swirling downwards from the middle, and the complex multiple swirls can meet the requirement of improving the mixing effect. The flow guide member 5 extends into the fluid to be mixed in the vertical direction of the container. The arrangement mode enables the sprayed gas and liquid to generate strong rotational flow mixing forms such as rolling, turbulence, friction and the like, promotes the materials to be in direct contact and uniformly mixed, utilizes the power of adding the materials or steam or compressed air or the power of circulating the materials pushed by a pump to realize the direct mixing among the materials, can greatly enhance the heat transfer, mass transfer or reaction efficiency, and can prevent the sedimentation and blockage of a discharge hole through the injection to the bottom. The arrangement of the air guide member 5 is not limited to the preferred example. As an alternative embodiment, the flow guide member 5 is spaced apart from the fluid to be mixed.

As a preferable embodiment, the flow guide member 5 is provided in one, and the flow guide member 5 is provided on a central axis of the mixing vessel, the central axis being parallel to the vertical direction of the mixing vessel 3; alternatively, the plurality of flow guide members 5 may be provided symmetrically along the central axis.

In a preferred embodiment, the swirl mixing device further comprises a detection part 4 provided with a detection probe 12, and the detection probe 12 extends into any one or more of the mixing containers 3 and into the fluid to be mixed. The detection probe 12 is connected with the detector 13, and the detector 13 is connected with the recorder 14 to form a record of the detection result.

The sensing portion 4 is used for sensing various physical and chemical parameters in the fluid, such as electrical conductivity and the like. The detection part 4 may employ any existing detection type device. For example, the detection portion 4 may alternatively include a conductivity meter and a paperless recorder.

It should be noted that the mixing device provided in this embodiment can be applied to various fields requiring fluid stirring. The fluid to be mixed may be a liquid mixture or a gas-liquid mixture system.

Example 5

When the power of the vortex mixing device is measured by using the device shown in FIG. 1, 1500L of clear water is filled into a reaction vessel 3 with the diameter of 1200mm and the height of 1500mm, 2 fan-shaped nozzles and 2 wide-angle nozzles are adopted, and the maximum circulating liquid is 6.6m³H, the liquid in the reaction kettle is 1.5m³The liquid in the reaction kettle can be circulated for 4.4 times in one hour, and the circulating amount can be adjusted according to the actual situation in the actual system. At a maximum liquid flow of 6.6m³H, maximum gas flow 10m³When the reactor is operated for one hour at the/h, the actual system consumed electricity quantity is 4Kw, which is less than the power of a common stirring motor, namely 7.5 Kw.

Example 6

When the rotating speed of the spray head in the air is measured under different liquid flow rates, 1500L of clean water is filled in a reaction vessel with the diameter of 1200mm and the height of 1500mm, and 2 fan-shaped nozzles and 2 wide-angle nozzles are adopted, and the results are shown in Table 1.

TABLE 1

Example 7

When the rotating speed of the nozzle in water is measured under different liquid flow rates, 1500L of clear water is filled into a reaction vessel with the diameter of 1200mm and the height of 1500mm, and 2 fan-shaped nozzles and 2 wide-angle nozzles are adopted, and the results are shown in Table 2.

TABLE 2

Air flow (m)3/h)	Air pressure (MPa)	Liquid flow rate (m)3/h)	Hydraulic pressure (MPa)	Rotating speed (r/min)
					0	0	1.2	0.18	71
0	0	1.8	0.16	109
					0	0	2.4	0.12	139
0	0	3.0	0.08	157
					0	0	3.6	0.06	179
0	0	4.2	0.04	215
					0	0	4.8	0.03	258
0	0	5.4	0.02	303
					0	0	6.0	0.02	343
0	0	6.6	0.01	358

Example 8

When measuring the influence of different liquid-gas ratios on the circulating flow effect, 1500L of clear water was filled into a reaction vessel with a diameter of 1200mm and a height of 1500mm, 2 fan-shaped nozzles and 2 wide-angle nozzles were used, and the diameters, the rotating speeds and the liquid flow patterns of the bubble distribution regions were measured after the bubbling was stabilized at liquid-gas ratios of 3:1, 3:2, 3:3, 3:4, 3:5, 3:6, 3:7, 3:8, 3:9 and 3:10, respectively, and the results are shown in Table 3.

TABLE 3

Example 9

When the mixing effect of the novel device is measured at different bubble diameters, 1500L of clean water is filled in a reaction vessel with the diameter of 1200mm and the height of 1500mm, and a 2-fan nozzle and a 2-wide-angle nozzle are adopted, the result is shown in FIG. 7, and the mixing effect is best when the bubble diameter is 450 mm.

Example 10

When measuring the mixing effect of the novel device under different gas flows, 1500L of clear water is filled in a reaction vessel with the diameter of 1200mm and the height of 1500mm, 2 fan-shaped nozzles and 2 wide-angle nozzles are adopted, and the liquid flow is 6m³At/h, the results are shown in FIG. 8, when the air flow rate is 7m³The mixing effect is best at the time of/h.

Example 11

When the mixing effect of the novel device under different liquid flow rates is measured, 1500L of clear water is filled in a reaction container with the diameter of 1200mm and the height of 1500mm, 2 fan-shaped nozzles and 2 wide-angle nozzles are adopted, and the air flow is 8m³The results are shown in FIG. 9, when the flow rate is 6m³The mixing effect is best at the time of/h.

Example 12

When measuring the relationship between the liquid pressure and the nozzle rotation speed, 1500L of clean water is filled into a reaction vessel with the diameter of 1200mm and the height of 1500mm, 2 fan-shaped nozzles and 2 wide-angle nozzles are adopted, and no flow is generated, so that the liquid pressure and the nozzle rotation speed have a certain linear relationship under the condition of no flow as shown in FIG. 10, and the nozzle rotation speed can be controlled by the liquid pressure according to the relationship.

Example 13

When measuring the relationship between the liquid flow and the rotating speed of the spray head, 1500L of clean water is filled in a reaction container with the diameter of 1200mm and the height of 1500mm, 2 fan-shaped nozzles and 2 wide-angle nozzles are adopted, and the result is shown in FIG. 11 when no flow exists, the liquid flow and the rotating speed of the spray head have a certain linear relationship under the condition of no flow, and the rotating speed of the spray head can be controlled through the liquid flow according to the relationship.

Example 14

When measuring the relation between the number of the fan-shaped nozzles and the rotating speed of the spray head, 1500L of clean water is filled into a reaction vessel with the diameter of 1200mm and the height of 1500mm, and the liquid flow is 6m³H, airflow rate 8m³In the case of/h, as a result, as shown in fig. 12, the number of the fan nozzles and the rotational speed of the head have a certain linear relationship, and the rotational speed of the head can be controlled by the number of the fan nozzles based on this relationship.

Example 15

When measuring the relation between the dissolved oxygen amount and time of the novel device, 1500L of clear water is filled into a reaction vessel with the diameter of 120cm and the height of 150cm, 2 fan-shaped nozzles and 2 wide-angle nozzles are adopted, and the liquid flow is 6m³H, flow rate 3m³The results are shown in FIG. 13 at/h.

It is to be understood that the above examples are given for clarity of illustration only and are not limiting of the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (21)

1. The utility model provides a water conservancy diversion part, the water conservancy diversion part includes stator and rotor, be provided with liquid nozzle on the rotor, liquid nozzle and liquid honeycomb duct are connected, the liquid honeycomb duct sets up in the inside of rotor and stator, still be provided with the gas outlet on the water conservancy diversion part, gas outlet and gas honeycomb duct intercommunication, the gas outlet on the water conservancy diversion part sets up in the top or the below of liquid nozzle, or, gas outlet sets up side by side with liquid nozzle, or, gas outlet is located liquid nozzle top and liquid nozzle periphery, or, gas outlet is located liquid nozzle top and below, or, gas outlet is located liquid nozzle's periphery and below, gas outlet is annular gas outlet or poroid gas outlet.

2. Flow directing element according to claim 1, wherein the liquid nozzles are one or more nozzles selected from the group consisting of fan nozzles, U-shaped wide angle nozzles, V-shaped wide angle nozzles, cavitation nozzles, and direct orifice or slot nozzles.

3. Flow directing element according to claim 2, characterised in that the stator is located above the rotor or the stator is located below the rotor.

4. The flow guide member of claim 1, wherein the gas outlet is a perforated gas outlet, and the perforated gas outlet is one or more.

5. The flow guide member according to any one of claims 1 to 4, wherein the direction of the liquid sprayed from the liquid spray nozzles is deviated from a straight line direction of the axis of the rotor toward the center point of the liquid spray nozzles, and a reaction force of the liquid sprayed from the liquid spray nozzles acts on the liquid spray nozzles to rotate the rotor.

6. An airlift type rotating circulation mixing device without an internal guide cylinder, which is characterized by comprising a container and a guide part as claimed in any one of claims 1 to 5, wherein the guide part is positioned in the container, a liquid guide pipe of the guide part is communicated with a liquid fluid pipeline, and a gas guide pipe of the guide part is communicated with a gas fluid pipeline.

7. The apparatus of claim 6, wherein the plurality of flow-directing members each connect the liquid flow line and the gaseous flow line through the liquid flow-directing tube and the gas flow-directing tube.

8. The apparatus of claim 7, wherein the vessel is a tank or a tower or a pond or a tank or a natural or artificial body of water to be treated.

9. The apparatus of claim 8 wherein the liquid in the liquid flow line is at a pressure higher than the pressure of the dispersion and the gas in the gaseous flow line is at a pressure sufficient to overcome the hydrostatic pressure differential.

10. The apparatus of claim 9, wherein the liquid fluid line is connected to a liquid pressurizing device and the gaseous fluid line is connected to a gas pressurizing device.

11. The apparatus of claim 10, wherein the liquid pressurizing device is a circulating pressurized liquid pump, a circulating gas compressor, or a vessel with a high liquid level or a liquid vessel with high pressure gas.

12. The apparatus of claim 11, wherein the gas pressurizing device is an air compressor or a vessel with high pressure gas.

13. The apparatus of claim 12 wherein the liquid entering the liquid pressurizing means is derived from a liquid in the container or from another liquid than the liquid in the container.

14. The apparatus of claim 12, wherein the gas entering the gas pressurizing means is derived from a circulating gas in the vessel or from another gas than the gas in the vessel.

15. The apparatus of claim 14, wherein the plurality of containers are provided, one or more flow directing members are provided in each container, and the flow directing members in each container are connected to the liquid fluid line and the gaseous fluid line.

16. The apparatus of claim 15, wherein each of the vessels is a closed vessel, each of the closed vessels feeding gas into the gas pressurizing means through a gas line disposed at an upper portion of the vessel, and each of the vessels feeding liquid into the liquid pressurizing means through a liquid line disposed at a bottom portion of the vessel.

17. The apparatus of claim 16, further comprising a heating device or a cooling device, wherein the heating device or the cooling device is arranged outside or inside the container, and heats or cools the container, or heats or cools the liquid entering the liquid pressurizing device, or heats or cools the gas entering the gas compressing device.

18. The apparatus of claim 17, further comprising a detection device comprising one or more of a liquid or/and gas detector within the system.

19. The apparatus of claim 18, further comprising a control device connected to one or more of the liquid fluid line valve, the gaseous drain outlet valve of the vessel, and the liquid drain outlet valve of the vessel.

20. A method for mixing a solution or a gas and a liquid by using the device according to any one of claims 6 to 19, the method comprising the steps of:

step 1) adding liquid A into a suitable container to enable the liquid level to be higher than a liquid nozzle and a gas outlet, and pressurizing and inputting liquid B into a liquid fluid pipeline;

step 2) injecting liquid B into the container below the liquid level of liquid A through the liquid nozzle, compressing the gas and then conveying the gas to the gas outlet through the gaseous fluid pipeline, and injecting the gas into the container below the liquid level of liquid A.

21. The method of claim 20, wherein liquid a and liquid B in the method are the same liquid or are different liquids.

Images