CN211198744U - Small-sized submersible horizontal aeration plug flow stirring equipment - Google Patents

Abstract

The utility model discloses a small-sized diving horizontal type aeration plug flow stirring device, which relates to the field of aeration plug flow stirring devices and comprises a shell, an impeller, a motor and an air inlet pipe; a mixing chamber is arranged in the shell, the impeller is rotatably arranged in the mixing chamber, the axial lead of the impeller is transversely arranged, and the impeller is driven by a motor; a liquid inlet is arranged around the shell corresponding to the periphery of the axial lead of the impeller, a liquid outlet is arranged at the front end of the axial lead of the impeller, and the impeller drives the liquid in the mixing chamber to enter from the liquid inlet and discharge from the liquid outlet; the lower end of the air inlet pipe extends to the mixing chamber from the liquid inlet. The device can adapt to the working mode of a small/micro oxidation ditch, is more flexible and stable in arrangement, has a larger height interval for liquid to enter the device, and can pump external gas into a mixing chamber without external auxiliary equipment.

Description

Small-sized submersible horizontal aeration plug flow stirring equipment

Technical Field

The utility model relates to a horizontal aeration plug flow agitated vessel of small-size dive mainly relates to aeration plug flow agitated vessel field.

Background

The sewage treatment circulating plug-flow type aeration biological reaction tank (oxidation ditch process) is one of a plurality of mainstream treatment processes in the sewage treatment field, at present, China has a great number of oxidation ditch process sewage treatment plants (stations), the process equipment at the core in the oxidation ditch is aeration and horizontal plug-flow stirring equipment, and the operation effect and the stability of the core equipment are a decisive condition for whether the oxidation ditch can normally exert the treatment effect.

In recent years, the country vigorously promotes rural sewage treatment work, so that rural sewage treatment projects which take rural sewage treatment projects as a certain representative and have the characteristics of small water treatment amount, high equipment integration requirement, lack of professional maintenance managers and the like and industrial wastewater treatment projects with small water treatment amount are more and more. The oxidation ditch process which is one of a plurality of main flow treatment processes in the sewage treatment field is largely applied to small water treatment amount items, but because aeration and horizontal direction plug flow stirring equipment matched with the oxidation ditch process are basically directed at large water treatment amount items, the problem that the existing oxidation ditch process with small water treatment amount is lack of matched core aeration and horizontal direction plug flow stirring equipment is quite prominent.

A self-priming plug-flow submersible aerator is disclosed in patent document CN 105130025A. The technical scheme includes that the device comprises a machine shell, a motor, an impeller and an air inlet pipe, wherein the machine shell is vertically arranged, namely a mixing chamber is vertically arranged in the machine shell, a liquid inlet is formed in the top of the mixing chamber, a liquid outlet is formed in the side wall of the mixing chamber, the air inlet pipe extends into the mixing chamber from the liquid inlet, the impeller is driven to rotate by the motor, liquid is driven by the impeller to enter from the liquid inlet of the mixing chamber and then is discharged from the liquid outlet, the flow direction of water flow in the scheme is from top to bottom, the flow direction of the water flow is not suitable for a small oxidation ditch, firstly, aeration stirring equipment in the oxidation ditch needs to drive the water flow to move directionally, but the flow direction of the water flow in the scheme is radiated from the equipment; thirdly, the liquid inlet is arranged to be higher due to the vertical standing arrangement, so that the problem of a stirring dead zone exists, and in addition, the liquid inlet is arranged in a small oxidation ditch, so that the liquid is likely to not reach the height of the liquid inlet or the liquid submerging depth is not enough, the liquid inlet generates a vortex to damage the liquid inlet condition, and further normal aeration is not realized; finally, if the size is simply reduced in equal proportion, the negative pressure formed in the mixing chamber is insufficient, and the gas cannot be automatically discharged into the mixing chamber from the lower end of the gas inlet pipe.

SUMMERY OF THE UTILITY MODEL

To the not enough of above prior art, the utility model provides a horizontal aeration plug flow agitated vessel of small-size dive can adapt to the mode of small-size/microminiature oxidation ditch, arranges more nimble stability, and the high interval that liquid got into in the equipment is bigger, need not outside auxiliary assembly and just can take out the mixing chamber with the external gas.

In order to achieve the above purpose, the technical scheme of the utility model is that: comprises a shell impeller motor and an air inlet pipe; a mixing chamber is arranged in the shell, the impeller is rotatably arranged in the mixing chamber, the axial lead of the impeller is transversely arranged, and the impeller is driven by a motor; a liquid inlet is arranged around the shell corresponding to the periphery of the axial lead of the impeller, a liquid outlet is arranged at the front end of the axial lead of the impeller, and the impeller drives the liquid in the mixing chamber to enter from the liquid inlet and discharge from the liquid outlet; the lower end of the air inlet pipe extends to the mixing chamber from the liquid inlet.

The technical principle and the beneficial effects of the utility model are as follows:

this scheme passes through the impeller and rotates for the liquid of mixing chamber gets into from the inlet, and discharges from the liquid outlet, and consequently liquid exhaust direction is directional, can fix and discharge from certain direction, and consequently the operating mode of adaptation oxidation ditch that can be smooth drives the inside liquid level of oxidation ditch and orients and flows, and the inlet compares the liquid outlet and overflows that the aperture can be bigger, and consequently exhaust liquid speed will be faster, more is favorable to driving the liquid flow in the oxidation ditch.

The mixing chamber adopts horizontal structure, and the inlet is located the periphery of impeller, and the liquid outlet is located the one end of mixing chamber, and overall structure focus is lower, and liquid provides the reaction force from the lateral part simultaneously, and in the time of the use, only need support the other end that the liquid outlet is relative just can, place and can use at the bottom of the pool, convenient more in a flexible way.

The liquid inlet is distributed on the periphery of the shell, the whole height is lower, and the height range of the distribution is wider, so that the liquid in the small oxidation ditch can be more favorably fed and discharged. Effectively eliminating the aeration stirring dead zone existing in the traditional mode and solving the problem of sludge deposited at the bottom of the tank.

The intake pipe sets up in the mixing chamber in this scheme, and the impeller drives the negative pressure that liquid flow formed and the negative pressure that impeller itself formed, will provide stronger suction, and the negative pressure that provides is enough to get into the air directly from the upper end of intake pipe and discharge from the lower extreme of intake pipe, need not other auxiliary assembly, and equipment is retrencied more, and work efficiency is higher.

Preferably, the lower end of the air inlet pipe is located on the back side of the impeller, so that the direction of liquid flowing driven by the impeller is adapted, and air in the air inlet pipe is more conveniently pumped into the mixing chamber.

Preferably, a circular air distribution chamber is arranged at the back end of the impeller and communicated with the lower end of the air inlet pipe, and an air outlet of the circular air distribution chamber is positioned at the back of the impeller and used for uniformly pumping air in the air inlet pipe to the back of the impeller so as to be sufficiently cut and crushed by the impeller.

Preferably, the impeller is fixed on a rotating shaft of the motor, and the motor is positioned on the back side of the impeller, namely the motor is positioned on the back side of the impeller, so that the overall gravity center is more balanced, and the overall stability can be obviously improved.

Preferably, the shell is fixed on a support, the support supports the shell to enable the liquid inlet to be suspended relative to the ground, liquid in the liquid inlet positioned below the shell can enter the liquid inlet smoothly, the water inflow is guaranteed, and the aeration plug-flow stirring effect is fully exerted.

Preferably, the liquid inlet is arranged in a reverse inclined manner relative to the liquid outlet, and the liquid needs to turn to flow after entering the mixing chamber.

Preferably, the inlet is equipped with the inlet end and is equipped with the filter screen, can block large-scale impurity entering mixing chamber through the filter screen, can avoid the winding on the impeller on the one hand, and on the other hand can avoid the object that can not smash to be smashed, influences holistic technological effect and increases unnecessary energy consumption loss.

Preferably, the motor is a variable frequency motor so as to adapt to different technological effects.

Preferably, the upper portion of intake pipe is equipped with the transfer valve, the transfer valve can control the intake bore of intake pipe, the air input of intake pipe promptly to adapt to different air inlet demands.

Preferably, the liquid outlet is butted with a flow guide sleeve, so that efficient hydraulic rectification is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only one of the drawings of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Wherein, casing 1, motor 2, pivot 3, impeller 4, intake pipe 5, circular gas distribution cavity 6, support 7, inlet 8, mixing chamber 9, liquid outlet 10, kuppe 11, air regulating valve 12.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely preferred embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in fig. 1, it comprises a housing 1, an impeller 4, a motor 2 and an air inlet pipe 5.

Be equipped with mixing chamber 9 in the casing 1, the 9 internal rotations of mixing chamber are equipped with impeller 4, impeller 4's the horizontal setting of axial lead, impeller 4 passes through motor 2 and drives, and is concrete, impeller 4 is fixed in on the pivot 3 of motor 2, motor 2 is located impeller 4's the back side, makes motor 2 be located impeller 4's the back promptly, and whole focus is more balanced, can show improvement holistic stability. The motor 2 is a variable frequency motor 2 so as to adapt to different technological effects.

The casing 1 that the periphery of the axial lead of impeller 4 corresponds encircles and sets up inlet 8, the axial lead front end of impeller 4 is equipped with liquid outlet 10, the liquid that impeller 4 drove mixing chamber 9 gets into and discharges from liquid outlet 10 from inlet 8. The liquid inlet 8 is arranged in a reverse inclined way relative to the liquid outlet 10, and the liquid needs to turn to flow after entering the mixing chamber 9, so that the inclined liquid inlet 8 is more beneficial to the flow of the liquid, the resistance is reduced, and the flowing speed of the liquid is improved. The liquid outlet 10 is butted with a flow guide cover 11, so that high-efficiency hydraulic rectification is realized.

The inlet 8 is equipped with the inlet end and is equipped with the filter screen, can block large-scale impurity entering mixing chamber 9 through the filter screen, can avoid the winding on impeller 4 on the one hand, and on the other hand can avoid the object that can not smash to be smashed, influences holistic technological effect and increases unnecessary energy consumption loss.

The lower extreme of intake pipe 5 certainly 8 extends to mixing chamber 9, the lower extreme of intake pipe 5 is located the impeller 4 back side adapts to the direction that impeller 4 drove the liquid flow, more conveniently takes out the air in intake pipe 5 into mixing chamber 9, the back end of impeller 4 is equipped with circular gas distribution chamber 6, circular gas distribution chamber 6 with the lower extreme intercommunication of intake pipe 5, the gas outlet of circular gas distribution chamber 6 is located the back of impeller 4, with the even back of taking out impeller 4 of taking out of the air in intake pipe 5, and then by the abundant cutting breakage of impeller 4.

The upper portion of intake pipe 5 is equipped with transfer valve 12, transfer valve 12 can control the intake bore of intake pipe 5, the air input of intake pipe 5 promptly to adapt to different air inlet demands.

The shell 1 is fixed on the support 7, the support 7 supports the shell 1 to enable the liquid inlet 8 to be suspended on the ground relatively, so that liquid in the liquid inlet 8 positioned below can enter smoothly, the water inflow is guaranteed, and the aeration plug flow stirring effect is fully exerted.

Rotate through impeller 4 for the liquid of mixing chamber 9 gets into from inlet 8, and discharge from liquid outlet 10, so liquid exhaust direction is directional, can fix and discharge from certain direction, and consequently adaptation oxidation ditch's that can be smooth operating mode drives the inside liquid level of oxidation ditch and orients and flows, and inlet 8 compares liquid outlet 10 and overflows the aperture and can be bigger, and consequently exhaust liquid speed will be faster, more is favorable to driving the liquid flow in the oxidation ditch.

Mixing chamber 9 adopts horizontal structure, and inlet 8 is located impeller 4's periphery, and liquid outlet 10 is located mixing chamber 9's one end, and the overall structure focus is lower, and liquid provides reaction force from the lateral part simultaneously, and in the time of the use, only need support the other end that liquid outlet 10 is relative just can, place and can use at the bottom of the pool, convenient more in a flexible way.

The liquid inlet 8 is distributed on the periphery of the shell 1, the overall height is lower, and the distribution height range is wider, so that liquid in a small oxidation ditch can enter and exit more favorably.

Intake pipe 5 sets up in mixing chamber 9 in this scheme, and impeller 4 drives the negative pressure that liquid flow formed and the negative pressure that impeller 4 itself formed, will provide stronger suction, and the negative pressure that provides is enough to get into the air directly from the upper end of intake pipe 5 and discharge from the lower extreme of intake pipe 5, need not other auxiliary assembly, and equipment is retrencied more, and work efficiency is higher.

The scheme has good aeration and horizontal direction plug flow stirring functions (horizontal direction plug flow stirring can be carried out independently without aeration), and has the advantages of small power, small volume, light weight, convenient and flexible installation, low cost, stable and reliable operation, simple and flexible working condition adjustment and low operation noise, is highly suitable for core equipment of the small-treatment-water-volume oxidation ditch process, and solves the outstanding problem that the conventional small-treatment-water-volume oxidation ditch process is lack of matched core aeration and horizontal direction plug flow stirring equipment. When the device is used, the installation angle of the device can be adjusted as required so as to be suitable for different operation requirements, and the device using place is not limited to an oxidation ditch process. The flow pushing direction and angle of the equipment can be flexibly adjusted up and down according to the requirement, and the equipment is not only limited to be in the horizontal direction.

The working principle of the technical scheme is as follows:

the device is arranged at the bottom of a water pool in a horizontal self-weight landing mode, after being electrified and started, the submersible motor 2 drives the impeller 4 to rotate at a high speed and push water at a large flow rate to do work, and water flow enters a turbulent flow mixing chamber 9 of the device from the annular water inlet;

the impeller 4 pushes water in large flow and forms certain vacuum negative pressure in the turbulent mixing chamber 9, air (or other gas needing to be filled into a water body) is sucked under the action of the vacuum negative pressure, and is cut and crushed by the impeller 4 which rotates rapidly, and then the air and the gas are fully mixed with water flow which is turbulent violently to form gas-liquid two-phase flow;

finally, the gas-liquid two-phase flow passes through the air guide sleeve 11 of the liquid outlet 10 and is rapidly sprayed and flows out from the water outlet (gas-liquid two-phase flow outlet) along the straight direction of the outlet under the high-efficiency hydraulic rectification action of the air guide sleeve 11, so that excellent aeration and horizontal plug flow stirring effects are formed.

The technical scheme has the following technical characteristics:

(1) adopt spacing dead weight console mode installation of bottom of the pool board or afterbody to lean on wall dead weight console mode installation, be about to this device directly place set up the dog at the bottom of the pool spacing or lean on the wall to support by, need not fix, bare-handed directly put into equipment required operating position can, simple swift. The height of the front and rear mounting supports of the equipment can be adjusted in a matched mode, so that the flow pushing direction and angle of the equipment can be flexibly adjusted up and down according to needs, and the equipment is not only limited to the horizontal direction.

(2) The scheme has wide application range, simultaneously has good aeration and horizontal plug flow stirring functions, and can also independently carry out horizontal plug flow stirring without aeration, thereby being used for aeration and plug flow stirring of an aerobic section and anaerobic and anoxic stirring (the function can be realized by the same high-power equipment, but the low-power equipment does not have).

(3) The form and the material of the limit structure of the device can be various by the bottom plate of the water pool/the water tank, and the limit structure can be flexibly adopted according to the actual conditions of different projects.

(4) The submersible motor can adopt a power supply of 220V or 380V, has a frequency conversion function, and can be flexibly adopted and operated in a frequency conversion regulation mode according to the actual conditions of different projects.

(5) The annular 360-degree large-channel water inlet of the machine body is adopted, so that water inflow is smooth, the water flow resistance is small, and the flow is large. Meanwhile, the water inlet can be flexibly configured with water inlet grille nets (filter screens) with different water passing apertures according to the requirements so as to prevent solid matters (such as biological fillers and the like) in water from entering the turbulent mixing chamber and being cut and damaged by the impeller.

(6) The air inlet mode can adopt negative pressure natural suction or air pressurization equipment for feeding, the air entering the equipment can be air or other air which needs to be filled into the water body, and the air inlet mode can be flexibly adopted according to the actual conditions and the needs of different projects. Meanwhile, auxiliary gas pressurizing equipment can be additionally arranged on the gas inlet pipe according to actual conditions. The air inlet pipe can be additionally provided with a valve to adjust air inflow, and the air inlet can be additionally provided with a silencer to further effectively eliminate operation noise.

(7) The double-curved-surface cutting impeller is adopted, so that the high-efficiency large-flow water pushing device has the anti-blocking and anti-winding performances while pushing water efficiently, and the reliability of the underwater work of the device is ensured.

(8) The turbulent mixing chamber is designed by adopting high-efficiency hydraulic power, so that the high-efficiency mixing of gas-liquid two-phase substances is ensured.

(9) And a high-efficiency water outlet guide sleeve is configured to realize high-efficiency hydraulic rectification.

(10) High-efficiency aeration: the gas is firstly cut and crushed by the fast rotating impeller, then is efficiently mixed with the severely turbulent water flow and then is fast sprayed and flows out from the outlet, so the diameter of the bubbles is small, the turbulence degree relative to the water body is large, the bubbles firstly rush to the bottom of the pool and then rise to the water surface, and the retention time in the water is long, and the aeration effect is good and high in efficiency (the three factors influencing the aeration effect are the gas-liquid contact area, namely the size of the bubbles, the turbulence degree of the water body and the retention time of the gas in the water).

(11) Efficient plug flow stirring: the smooth large flow channel and the high-efficiency hydraulic impeller are adopted, so that the water pushing flow is large; the tank bottom is stirred in a plug flow manner, so that the tank bottom is effectively washed to prevent sludge deposition; namely, the flow rate is high and the tank bottom is washed away to push the flow and stir, the effect is good and the efficiency is high.

(12) The working condition is adjusted simply and flexibly, and various operating working conditions such as 'strong aeration + strong plug flow stirring', 'weak aeration + strong plug flow stirring', 'non-aeration + strong plug flow stirring', 'weak aeration + weak plug flow stirring', 'non-aeration + weak plug flow stirring' and the like can be simply and flexibly realized by adjusting the air input and the equipment rotating speed (operating frequency). And thus is excellent in adaptability to the process.

(13) The power is low, the power of the equipment can be less than or equal to 550W, and the equipment can be matched and used for the oxidation ditch process with small treatment water amount according to needs (the power of the similar equipment is at least more than or equal to 750W).

(14) The volume is small, the installation and the work in the microminiature reaction tank can be realized, and the high integration of equipment is realized at the same time. Light weight, no need of installing a lifting device, simplicity, convenience and cost saving.

(15) The equipment fixing base is located at the bottom of the pool, and aeration and plug flow stirring are carried out from the bottom of the pool, so that the problems of an aeration stirring dead zone existing in a traditional mode and the problem of settling sludge at the bottom of the pool are effectively eliminated, the effective volume of the pool body is greatly improved, and the treatment capacity is effectively improved.

(16) The running noise is low, the equipment runs stably and does not have vibration noise for underwater work, the gas transfer utilization efficiency is high, the air suction quantity is small, the noise is low, and in addition, a silencer can be additionally arranged on the gas inlet to further effectively eliminate the running noise.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The small-sized submersible horizontal aeration plug flow stirring equipment is characterized by comprising a shell (1), an impeller (4), a motor (2) and an air inlet pipe (5);

a mixing chamber (9) is arranged in the shell (1), the impeller (4) is rotationally arranged in the mixing chamber (9), the axial lead of the impeller (4) is transversely arranged, and the impeller (4) is driven by a motor (2);

a liquid inlet (8) is arranged around the shell (1) corresponding to the periphery of the axis of the impeller (4), a liquid outlet (10) is arranged at the front end of the axis of the impeller (4), and the impeller (4) drives the liquid in the mixing chamber (9) to enter from the liquid inlet and discharge from the liquid outlet (10);

the lower end of the air inlet pipe (5) extends to the mixing chamber (9) from the liquid inlet.

2. A small submersible horizontal aeration plug flow agitation device according to claim 1 wherein: the lower end of the air inlet pipe (5) is positioned on the back side of the impeller (4).

3. A small submersible horizontal aeration plug flow agitation device according to claim 1 wherein: the back end of the impeller (4) is provided with a circular gas distribution chamber (6), the circular gas distribution chamber (6) is communicated with the lower end of the gas inlet pipe (5), and a gas outlet of the circular gas distribution chamber (6) is positioned on the back of the impeller.

4. A small submersible horizontal aeration plug flow agitation device according to claim 1 wherein: the impeller (4) is fixed on a rotating shaft (3) of the motor (2), and the motor (2) is positioned on the back side of the impeller (4).

5. A small submersible horizontal aeration plug flow agitation device according to claim 1 wherein: the shell (1) is fixed on a support (7), and the support (7) supports the shell (1) to enable the liquid inlet to be suspended relative to the ground.

6. A small submersible horizontal aeration plug flow agitation device according to claim 1 wherein: the liquid inlet is arranged opposite to the liquid outlet (10) in a reverse inclined mode, the mixing chamber is of a conical structure, and the caliber of one end, close to the liquid outlet, of the conical structure is smaller.

7. A small submersible horizontal aeration plug flow agitation device according to claim 1 wherein: the liquid inlet (8) is provided with a filter screen at the hole inlet end.

8. A small submersible horizontal aeration plug flow agitation device according to claim 1 wherein: the motor (2) is a variable frequency motor.

9. A small submersible horizontal aeration plug flow agitation device according to claim 1 wherein: and the upper part of the air inlet pipe (5) is provided with an air regulating valve (12).

10. A small submersible horizontal aeration plug flow agitation device according to claim 1 wherein: the liquid outlet (10) is butted with a flow guide cover (11).

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