CN213771509U

CN213771509U - Combined gasket type air inlet structure for micro-nano bubble generating device

Info

Publication number: CN213771509U
Application number: CN202022769964.6U
Authority: CN
Inventors: 张晓博
Original assignee: Shaanxi Chaowei Environment Technology Co ltd
Current assignee: Shaanxi Chaowei Environment Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-23
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a micro-nano bubble generating device is with combination gasket type air inlet structure, main content is: the central cone hole inner wall on the sleeve is evenly distributed with a plurality of air inlet grooves along the circumferential direction, the bottom of the sleeve is installed on the top surface of the cavitator through a positioning pin, a tooth-shaped gasket is installed between the bottom surface of the sleeve and the top surface of the cavitator, a tooth-shaped gasket group is formed by combining tooth-shaped gaskets with two specifications of 0.02mm thickness and 0.05mm thickness, 5 wing-shaped blades are evenly distributed on the cavitator along the circumferential direction, air outlet slits are formed in each wing-shaped blade, and 5 radial holes are evenly distributed on the cavitator along the circumferential direction and are communicated with the radial holes. The utility model discloses simple structure, the installation is maintained very conveniently, has both realized that the axial of cavitation ware is admitted air, has realized the radial of cavitation ware again and has admitted air, adjusts the particle diameter of micro-nano bubble through the thickness that changes profile of tooth shim group moreover.

Description

Combined gasket type air inlet structure for micro-nano bubble generating device

Technical Field

The utility model relates to an environmental protection equipment technical field, specifically speaking, in particular to micro-nano bubble generating device is with combination gasket type air inlet structure.

Background

Aerobic biological treatment is the most common treatment unit in the current sewage treatment process, and an aerator is the core equipment of the unit. The aerator has the main functions of oxygenating water, ensuring normal life activity of microorganisms, preventing sludge from settling and ensuring the full contact of air with sludge and organic matters in sewage.

The existing main aerator types have the following problems: (1) the gas-liquid mixing position is positioned at the rear edge point of the tail end of the inner shaft of the device, although the negative pressure is large, the gas inlet is facilitated, the speed at the position is small (namely the radius is zero, so the circumferential speed tends to zero), the shearing of the water flow to the gas flow is not facilitated, a continuous gas column is easily formed after the gas flows out, and the generation of discrete bubbles is not facilitated; (2) a part of negative pressure loss can be caused by an overlong pipeline for feeding air to a gas-liquid mixing position; or the air inlet element is positioned in the upstream flow field, and can generate adverse effect on the flow of water flow; (3) the device is integrated, and once the device is blocked in sewage treatment, the device is not easy to clean, so that the device fails; (4) the particle size of the bubbles is not controllable, the size of the generated bubbles is large, and the bubbles are not uniformly distributed in the water body; (5) the device does not have a turbulence enhancing structure, and the turbulence degree of a flow field in the aerator is not enough, so that the shearing of water flow to gas and the uniform distribution of bubbles are not facilitated; (6) the partial aeration device is provided with equipment such as pressurized dissolved air and the like, and the safe operation of the pressure container after the large water body treatment and size enlargement has high requirements on material strength and processing mode; (7) some devices mainly rely on a small through-flow section to generate high-speed water flow, form negative pressure to suck gas and shear the gas, so that the device is difficult to be integrally amplified in principle and cannot meet the requirement of large water body treatment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough among the above-mentioned prior art, disclose a micro-nano bubble generating device is with combination gasket type air inlet structure, its simple structure, it is very convenient that the installation is maintained, has both realized that the axial of cavitator admits air, has realized the radial of cavitator again and has admitted air, adjusts the particle diameter of micro-nano bubble through the thickness that changes profile of tooth gasket group moreover.

The utility model provides a technical scheme that its technical problem adopted is: a combined gasket type air inlet structure for a micro-nano bubble generating device comprises a cavitator, a sleeve, a jackscrew, a tooth-shaped gasket group, a positioning pin, an air inlet groove, a fan-shaped groove, an airfoil-shaped blade and an air outlet slit, wherein the central axis of the sleeve consists of a central cylindrical hole and a central conical hole, the central cylindrical hole is positioned at the upper end of the central conical hole, a plurality of air inlet grooves are uniformly distributed on the inner wall of the central conical hole on the sleeve along the circumferential direction, the bottom of the sleeve is arranged on the top surface of the cavitator through the positioning pin, the tooth-shaped gasket group is arranged between the bottom surface of the sleeve and the top surface of the cavitator, the tooth-shaped gasket group is formed by combining tooth-shaped gaskets with the thickness of 0.02mm and the thickness of 0.05mm, 5 airfoil-shaped blades are uniformly distributed on the cavitator along the circumferential direction, the air outlet slit is arranged on each airfoil-shaped blade, 5 radial holes are uniformly distributed on the cavitator along the circumferential direction, and are communicated with the radial holes, the jackscrew is arranged in a radial hole on the cavitator, and the tooth-shaped gasket group is provided with a fan-shaped groove.

As a preferred embodiment of the present invention, the tooth-shaped gasket set has 4 fan-shaped grooves uniformly distributed along the circumferential direction.

As a preferred embodiment of the present invention, the tooth-shaped gasket set is provided with a through hole at the center.

As a preferred embodiment of the present invention, the bottom of the cavitator is provided with a positioning boss of an annular cylinder.

The micro-nano bubble generating device adopts a self-suction type air inlet structure, the axis of the cavitator generates negative pressure, air in the sleeve enters the cavitator through the air inlet groove, and the air is partially sheared into micro bubbles through the sector grooves on the tooth-shaped gasket group between the sleeve and the cavitator so as to realize the generation of micro bubbles through axial air inlet; the other part of air passes through the radial hole in the cavitator and is subjected to gas shearing through the air outlet slit on the wing-shaped blade to generate micro bubbles, so that the micro bubbles are generated by radial air inlet; the device is assembled, so that the cleaning is convenient; the outer side of the radial hole is provided with a taper hole on the outer wall of the cavitator, the taper hole is plugged by a jackscrew when the device works at ordinary times, so that other substances are adhered to the inner wall of the radial hole after the device is used for a long time, the jackscrew can be opened at the moment, and the inner wall of the radial hole can be cleaned by ventilating the taper hole; the grain diameter of the generated micro-bubbles is controlled by changing the thickness of the tooth-shaped gasket group.

Compared with the prior art, the utility model, one or more following technological effects have at least:

(1) the utility model provides a micro-nano bubble is combination gasket formula inlet structure for generating device, includes: the central axis of the sleeve consists of a central cylindrical hole and a central taper hole, the central cylindrical hole is positioned at the upper end of the central taper hole, a plurality of air inlet grooves are uniformly distributed on the inner wall of the central taper hole on the sleeve along the circumferential direction, the bottom of the sleeve is installed on the top surface of the cavitator through the positioning pin, a tooth-shaped gasket group is installed between the bottom surface of the sleeve and the top surface of the cavitator, the tooth-shaped gasket group is formed by combining tooth-shaped gaskets with two specifications of 0.02mm thickness and 0.05mm thickness, 5 wing-shaped blades are uniformly distributed on the cavitator along the circumferential direction, an air outlet slit is arranged on each wing-shaped blade, 5 radial holes are uniformly distributed on the cavitator along the circumferential direction, the air outlet slits are communicated with the radial holes, the top wire is installed in the radial holes on the cavitator, the tooth-shaped gasket group is provided with a fan-shaped groove. The problem of the particle diameter of current structure microbubble uncontrollable and inconvenient clearance is solved, operating stability and reliability are poor to reached and controlled the particle diameter that produces the microbubble through the thickness that changes profile of tooth shim group, difficult jam and easy clearance, the operation is reliable and stable and effectual.

(2) The utility model provides a micro-nano bubble generating device is with combination gasket formula inlet structure, still includes: 4 fan-shaped grooves are uniformly distributed on the tooth-shaped gasket along the circumferential direction, a through hole is formed in the center of the tooth-shaped gasket, and an annular cylindrical positioning boss is arranged at the bottom of the cavitator. The axial air inlet and the installation problem of the cavitator are solved, so that the cavitator is very convenient to install and maintain, the axial air inlet of the cavitator is realized, the operation is stable and reliable, and the effect is good.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a sectional view of the structure A-A of the present invention;

FIG. 3 is a partial enlarged view of the position B of the present invention;

fig. 4 is a cross-sectional view of the C-C structure of the present invention.

Description of reference numerals:

1: cavitator, 2: sleeve, 3: jackscrew, 4: tooth-shaped gasket group, 5: positioning pin, 6: air inlet duct, 7: sector groove, 8: airfoil-shaped blade, 9: and an air outlet slit.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples:

it should be noted that the structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy that the present invention can produce and the purpose that the present invention can achieve.

Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

As shown in fig. 1-4, which illustrate a specific embodiment of the present invention, as shown in the figures, the present invention discloses a combined gasket type air inlet structure for micro-nano bubble generation device, which comprises a cavitator 1, a sleeve 2, a jackscrew 3, a tooth-shaped gasket set 4, a positioning pin 5, an air inlet groove 6, a fan-shaped groove 7, an airfoil-shaped blade 8 and an air outlet slit 9, wherein the central axis of the sleeve 2 is composed of a central cylindrical hole and a central tapered hole, the central cylindrical hole is located at the upper end of the central tapered hole, a plurality of air inlet grooves 6 are uniformly distributed on the inner wall of the central tapered hole on the sleeve 2 along the circumferential direction, the bottom of the sleeve 2 is mounted on the top surface of the cavitator 1 through the positioning pin 5, the tooth-shaped gasket set 4 is mounted between the bottom surface of the sleeve 2 and the top surface of the cavitator 1, the tooth-shaped gasket set 4 is composed of two specifications of 0.02mm thickness and 0.05mm thickness, 5 wing-shaped blades 8 are uniformly distributed on the cavitator 1 along the circumferential direction, an air outlet slit 9 is formed in each wing-

shaped blade

8, 5 radial holes are uniformly distributed on the cavitator 1 along the circumferential direction, the air outlet slits 9 are communicated with the radial holes, the jackscrew 3 is installed in the radial hole on the cavitator 1, and a fan-shaped groove 7 is formed in the tooth-shaped gasket group 4.

Preferably, 4 fan-shaped grooves 7 are uniformly distributed on the tooth-shaped gasket group 4 along the circumferential direction.

Preferably, a through hole is formed in the center of the tooth-shaped gasket group 4.

Preferably, the bottom of the cavitator 1 is provided with an annular cylindrical positioning boss.

The micro-nano bubble generating device of the utility model adopts a self-suction type air inlet structure, the axis of the cavitator 1 generates negative pressure, the air in the sleeve 2 enters the cavitator 1 through the air inlet groove 6, and the air is partially sheared into micro bubbles through the sector groove 7 on the tooth-shaped gasket group 4 between the sleeve 2 and the cavitator 1, so that the micro bubbles are generated by axial air inlet; the other part of air generates micro-bubbles by shearing gas through a radial hole in the cavitator 1 through an air outlet slit 9 on the airfoil-shaped blade 8, so that the micro-bubbles are generated by radial air inlet; the device is assembled, so that the cleaning is convenient; the outer side of the radial hole is provided with a taper hole on the outer wall of the cavitator 1, the taper hole is plugged by a jackscrew 3 when the device works at ordinary times, so that other substances are adhered to the inner wall of the radial hole after the device is used for a long time, the jackscrew 3 can be opened at the moment, and the inner wall of the radial hole can be cleaned by ventilating the taper hole; the grain diameter of the generated microbubbles is controlled by changing the thickness of the tooth-shaped gasket group 4.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.

Claims

1. The utility model provides a micro-nano bubble is combination gasket formula inlet structure for generating device which characterized in that: the cavitation device comprises a cavitation device, a sleeve, a top thread, a tooth-shaped gasket group, a positioning pin, air inlet grooves, a fan-shaped groove, wing-shaped blades and an air outlet slit, wherein the central axis of the sleeve consists of a central cylindrical hole and a central conical hole, the central cylindrical hole is positioned at the upper end of the central conical hole, a plurality of air inlet grooves are uniformly distributed on the inner wall of the central conical hole on the sleeve along the circumferential direction, the bottom of the sleeve is arranged on the top surface of the cavitation device through the positioning pin, the tooth-shaped gasket group is arranged between the bottom surface of the sleeve and the top surface of the cavitation device, the tooth-shaped gasket group is formed by combining tooth-shaped gaskets with two specifications of 0.02mm thickness and 0.05mm thickness, 5 wing-shaped blades are uniformly distributed on the cavitation device along the circumferential direction, the air outlet slit is arranged on each wing-shaped blade, 5 radial holes are uniformly distributed on the cavitation device along the circumferential direction, and the air outlet slits are communicated with the radial holes, the jackscrew is arranged in a radial hole on the cavitator, and the tooth-shaped gasket group is provided with a fan-shaped groove.

2. The combined gasket type air inlet structure for the micro-nano bubble generating device according to claim 1, wherein: 4 fan-shaped grooves are uniformly distributed on the tooth-shaped gasket group along the circumferential direction.

3. The combined gasket type air inlet structure for the micro-nano bubble generating device according to claim 1, wherein: the center of the tooth-shaped gasket is provided with a through hole.

4. The combined gasket type air inlet structure for the micro-nano bubble generating device according to claim 1, wherein: and an annular cylindrical positioning boss is arranged at the bottom of the cavitator.