Bubble generator for organic wastewater treatment

Abstract

The utility model relates to the technical field of gas-liquid mixing, in particular to a bubble generator for organic wastewater treatment, which comprises a water inlet pipe and a gas inlet pipe, a venturi injection pipe is arranged on one side of the water inlet pipe, a connector is arranged on the upper side of the venturi injection pipe, and a one-way floating ball is arranged on the inner side of the connector. A micro-nano breathable film is arranged on the lower side of the connector, a gathering pipe is arranged at one end of the Venturi injection pipe, one side of the gathering pipe is connected with a feeding pipe, and an ultrasonic generator is arranged on the feeding pipe. The air inlet pipe is communicated with the Venturi injection pipe through a connector, a pressure stabilizer is arranged on the air inlet pipe, and the pressure stabilizer comprises a tank body, a piston and a tympanic membrane; according to the utility model, the venturi injection pipe is adopted, and the micro-nano breathable film is arranged at the gas-liquid mixing position, so that the equipment cost is reduced, the inlet gas crushing effect is improved, the gas-liquid mixing reliability is ensured, the ultrasonic generator is arranged, the micro-nano bubble manufacturing is realized, and the practicability and the reliability of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas -liquid mixing technical field especially, relates to a bubble generator for organic wastewater treatment. BACKGROUND

[0002] The bubble generator is the equipment that water and gas are mixed and produce bubble, for example venturi pipeline mixer. Micro - nanometer bubble refers to the bubble that diameter is below 100mu m, is divided into nanometer bubble and micron bubble. Micro - nanometer bubble generator can be divided into multiple types according to the different application scene and function, such as small -size experimental micro - nanometer bubble generator, ozone micro - nanometer bubble integrated machine etc.

[0003] Micro - nanometer bubble generator shows extensive application potential in multiple fields, for example water treatment: for adsorption removal of suspended matter, oxidative decomposition of refractory organic pollutants, oxygenation to water body promotes biological activity and reduces endogenous pollution in sediment etc.

[0004] But the mixer in prior art gas -liquid mixing effect is not good, generally produces centimeter or millimeter level bubble, and the cost of the existing micro - nanometer bubble generator is high, therefore lack a kind of cost low and convenient to use's high -efficient micro - nanometer bubble generator. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in prior art and provides a bubble generator for organic wastewater treatment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A bubble generator for organic wastewater treatment, including water inlet pipe and air inlet pipe, one side of the water inlet pipe is equipped with venturi jet pipe, the upper side of the venturi jet pipe is equipped with connector, the inner side of the connector is equipped with one-way floating ball, the lower side of the connector is equipped with micro - nanometer air permeable membrane, one end of the venturi jet pipe is equipped with collecting pipe, one side of the collecting pipe is connected with feed pipe, the feed pipe is equipped with ultrasonic generator;

[0008] The air inlet pipe is communicated with the venturi jet pipe through the connector, the air inlet pipe is equipped with pressure stabilizer, the pressure stabilizer includes jar body, piston and eardrum, the piston side is located in the jar body and forms air cavity, the other side of the piston is equipped with pressure accumulator spring.

[0009] Preferably, the venturi jet pipe is provided with multiple groups, and is connected with the water inlet pipe, the water inlet pipe is equipped with pressure sensor.

[0010] Preferably, the connector pipe diameter gradually reduces from bottom to top, and the inner side of the connector is matched with the one-way floating ball.

[0011] Preferably, the micro-nano air permeable membrane extends into the Venturi jet pipe, and the upper side of the micro-nano air permeable membrane is communicated with the air inlet pipe.

[0012] Preferably, the Venturi jet pipe is provided with a flared pipe on one side, the flared pipe is connected with the collecting pipe, and a contraction neck is arranged between the Venturi jet pipe and the flared pipe.

[0013] Preferably, the piston is in sliding contact with the tank body, the eardrum is arranged in the middle of the piston, the air cavity is communicated with the air inlet pipe, and the tank body is provided with an air outlet hole on the side away from the air cavity.

[0014] The beneficial effects of the present application are as follows:

[0015] Compared with the prior art, the present application adopts the Venturi jet pipe, and a micro-nano air permeable membrane is arranged at the gas-liquid mixing position, so that the equipment use cost is reduced, the air inlet crushing effect is improved, the gas-liquid mixing reliability is ensured, an ultrasonic generator is configured, micro-nano level bubbles are manufactured, and the equipment practicability and reliability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 A three-dimensional structure schematic view of the bubble generator for organic wastewater treatment is provided in the present application;

[0017] Fig. 2 A main view cross-sectional structure schematic view of the Venturi jet pipe of the bubble generator for organic wastewater treatment is provided in the present application;

[0018] Fig. 3 A pressure stabilizer cross-sectional structure schematic view of the bubble generator for organic wastewater treatment is provided in the present application.

[0019] In the drawings: 1, water inlet pipe; 2, Venturi jet pipe; 20, flared pipe; 21, connector; 22, one-way floating ball; 23, micro-nano air permeable membrane; 3, collecting pipe; 4, ultrasonic generator; 5, feeding pipe; 6, air inlet pipe; 7, pressure stabilizer; 70, tank body; 71, air cavity; 72, piston; 73, eardrum; 74, pressure storage spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Reference Figs. 1-3 The application discloses a bubble generator for organic wastewater treatment, which comprises a water inlet pipe 1 and an air inlet pipe 6, wherein the water inlet pipe 1 is connected with a wastewater tank and used for receiving organic wastewater to be treated, the air inlet pipe 6 is used for connecting with oxygen or ozone, one side of the water inlet pipe 1 is provided with a Venturi jet pipe 2, the Venturi jet pipe 2 is provided with a plurality of groups and is connected with the water inlet pipe 1, a pressure sensor is arranged on the water inlet pipe 1 and used for detecting water inlet pressure, a connector 21 is arranged on the upper side of the Venturi jet pipe 2, a one-way floating ball 22 is arranged in the inner side of the connector 21, the pipe diameter of the connector 21 gradually decreases from bottom to top, the inner side of the connector 21 is matched with the one-way floating ball 22, one-way air inlet is realized, and water backflow into the air inlet pipe 6 is avoided, a micro-nano air permeable membrane 23 is arranged on the lower side of the connector 21, the micro-nano air permeable membrane 23 extends into the Venturi jet pipe 2, the upper side of the micro-nano air permeable membrane 23 is communicated with the air inlet pipe 6, one side of the micro-nano air permeable membrane 23 is oxygen, air or ozone, and the other side is the wastewater material to be treated, the air permeated by the micro-nano air permeable membrane 23 is broken and enters water, and the gas-liquid fusion efficiency is improved;

[0022] One end of the Venturi jet pipe 2 is provided with a collecting pipe 3, one side of the Venturi jet pipe 2 is provided with an expanding pipe 20, the expanding pipe 20 is connected with the collecting pipe 3, and a contraction neck is arranged between the Venturi jet pipe 2 and the expanding pipe 20; the large-scale bubbles can be broken into small-scale bubbles by using the turbulent field of the diffusion section of the expanding pipe 20.

[0023] One side of the collecting pipe 3 is connected with a feeding pipe 5, and an ultrasonic generator 4 is arranged on the feeding pipe 5; the ultrasonic vibration wave in the same period can be divided into a loose area and a compression area; the ultrasonic wave energy can cause ultrasonic cavitation in water; the cavitation occurs in the loose area, at this time, the pressure in the ultrasonic field is low, and the subsequent bubble breaking and collapse occurs in the compression area, at this time, the pressure in the ultrasonic field is high; the cavitation phenomenon can be divided into two parts of bubble aggregation and flow regulation and diffusion; the ultrasonic cavitation phenomenon is that the gas nucleus in water receives high-frequency vibration when passing through the ultrasonic field, the dissolved gas and volatile solutes in water diffuse into the gas nucleus, the size of the gas nucleus is increased to form bubbles, the bubbles are broken when reaching the resonance size, the cavitation phenomenon occurs, and the collapse of the ultrasonic bubbles can form a high temperature of 5000 DEG C and a high pressure of 2000 atm, and has a high effect on bubble breaking.

[0024] The air inlet pipe 6 is communicated with the Venturi jet pipe 2 through the connector 21, and the air inlet pipe 6 is provided with a pressure stabilizer 7, the pressure stabilizer 7 comprises a tank body 70, a piston 72 and a tympanic membrane 73, one side of the piston 72 is provided with an air cavity 71 in the tank body 70, the other side of the piston 72 is provided with a pressure storage spring 74, the piston 72 is in sliding contact with the tank body 70, the tympanic membrane 73 is arranged in the middle of the piston 72, the air cavity 71 is communicated with the air inlet pipe 6, the tank body 70 is provided with an exhaust hole on the side away from the air cavity 71, when air is inhaled, the air pressure rises, the tympanic membrane 73 is deformed under force, and simultaneously drives the piston 72 to slide, overcomes the friction resistance and the elastic force of the pressure storage spring 74, buffers the air pressure change, ensures that the air inlet pressure is stable, and protects the micro-nano air permeable membrane 23.

[0025] In the embodiment, the organic wastewater to be treated is sent into the water inlet pipe 1, and the compressor sends oxygen or ozone into the air inlet pipe 6, the airflow is stabilized by the pressure stabilizer 7, stably penetrates through the micro-nano air permeable membrane 23, contacts with the wastewater, is further broken and fused through the contraction neck, ensures the gas-liquid mixing efficiency, meets the conventional production demand, and reduces the production cost, in addition, according to the production demand, the mixed liquid can be further treated by using an ultrasonic wave, because the micro-nano air permeable membrane 23 and the contraction neck pre-break the air, therefore the ultrasonic wave generator 4 only needs to maintain low-power work or intermittent work, and still can ensure the gas-liquid mixing effect, simultaneously, can further improve the bubble breaking effect according to the demand, ensures the gas-liquid contact, and improves the oxidation reaction efficiency of the organic wastewater.

[0026] The above merely describes a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

[0027] It should be noted that the terms used herein are merely for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of a feature, step, operation, device, component and / or combination thereof.

[0028] The foregoing description, for purposes of explanation, has taken a specific application of the subject matter for purposes of explanation. The patentable scope is not limited to the embodiments described herein, but is defined solely by the claims. The embodiments were chosen and described in order to explain the principles of the patentable scope and the practical application and to enable others skilled in the art to understand the patentable scope for various embodiments with various modifications as are suited to the particular use contemplated. Those skilled in the art will appreciate that the conception, unique aspects, specific embodiments disclosed can be readily utilized as a basis for the designing of other structures, methodologies and / or devices for carrying out the several purposes of the present patentable scope. It is important, therefore, that the objectives supported by the claims be attained and that considered includes structural and / or logical equivalents of the elements covered by the claims.

Claims

1. A bubble generator for organic wastewater treatment comprising a water inlet pipe (1) and a gas inlet pipe (6), characterized in that, The water inlet pipe (1) is provided with a Venturi jet pipe (2) on one side, the upper side of the Venturi jet pipe (2) is provided with a connector (21), the inner side of the connector (21) is provided with a one-way floating ball (22), the lower side of the connector (21) is provided with a micro-nano breathable membrane (23), one end of the Venturi jet pipe (2) is provided with a collecting pipe (3), one side of the collecting pipe (3) is connected with a feed pipe (5), and the feed pipe (5) is provided with an ultrasonic generator (4); The air inlet pipe (6) is communicated with the Venturi jet pipe (2) through the connector (21), the air inlet pipe (6) is provided with a pressure stabilizer (7), the pressure stabilizer (7) comprises a tank body (70), a piston (72) and a tympanic membrane (73), one side of the piston (72) is provided with an air cavity (71) in the tank body (70), and the other side of the piston (72) is provided with a pressure storage spring (74).

2. The bubble generator for organic wastewater treatment according to claim 1, characterized by The Venturi jet pipe (2) is provided with a plurality of groups, and is connected with the water inlet pipe (1), and the water inlet pipe (1) is provided with a pressure sensor.

3. The bubble generator for organic wastewater treatment according to claim 1, characterized by The pipe diameter of the connector (21) gradually decreases from bottom to top, and the inner side of the connector (21) is matched with the one-way floating ball (22).

4. The bubble generator for organic wastewater treatment according to claim 1, characterized by The micro-nano breathable membrane (23) extends into the Venturi jet pipe (2), and the upper side of the micro-nano breathable membrane (23) is communicated with the air inlet pipe (6).

5. The bubble generator for organic wastewater treatment according to claim 1, characterized by The Venturi jet pipe (2) is provided with an expanding pipe (20) on one side, the expanding pipe (20) is connected with the collecting pipe (3), and the Venturi jet pipe (2) and the expanding pipe (20) are provided with a contraction neck.

6. The bubble generator for organic wastewater treatment according to claim 1, wherein The piston (72) and the tank body (70) are in sliding contact, the tympanic membrane (73) is arranged in the middle of the piston (72), the air cavity (71) is communicated with the air inlet pipe (6), and the tank body (70) is provided with an exhaust hole on the side away from the air cavity (71).

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