NL2021112B1

NL2021112B1 - Micro-nano bubble generator

Info

Publication number: NL2021112B1
Application number: NL2021112A
Authority: NL
Inventors: Rao Yaoming; Fu Tao; Gu Weimin; Zhang Ziwei; Chen Shaocong; Ji Chunming; He Mudi
Original assignee: Zhuhai Qingchuan Environmental Protection Tech Co Ltd
Priority date: 2017-12-13
Filing date: 2018-06-13
Publication date: 2019-10-24
Also published as: DE202018102760U1; CN207713477U; NL2021112A

Abstract

The invention provides a micro-nano bubble generator including a bubble generation tank and a gas compressor arranged at one side of the bubble generation 5 tank; one side of the gas compressor is provided with a gas meter; one side of the gas meter is provided with a gas releaser arranged at one side of the bubble generation tank; one side of the gas compressor is provided with a gas delivery pipe. Air or other gases are preliminarily compressed into non-pressure microbubbles via the gas compressor; the non-pressure microbubbles are highly dispersed under a 10 partial vacuum via a gas and liquid phase chamber using the gas releaser to generate microbubbles and nanobubbles smaller than 3pm; the microbubbles and the nanobubbles are released to a water body for quickly filling oxygen to the water. The device is simple, the operation is convenient, and quick micro-nano bubble generation can be implemented.

Description

Technical field

The disclosure relates to the field of water treatment, and more particularly, to a micro-nano bubble generator.

Background

In treatment of oily sewage, a common method is an air flotation purifying method. The so-called air flotation method is a method through which oil substances and suspended matters in the oily sewage are agglomerated using microbubbles and the action of a coagulant and a flocculant and then are floated up to a surface of a water body such that pollutants are separated and are removed via a pollution discharge device. The microbubbles are a collective name for bubbles having the diameters less than 50pm. The generation of the microbubbles is mainly implemented by a method of inhaling the air before pumping and pressurizing to dissolve or inhaling the air in a form of an aerator to water and then breaking into bubbles via high-speed rotation of an impeller. Since bubbles generated during operation of a gas dissolving device have a large particle diameter, the flocculant must be added, or otherwise the suspended matters as well as flocs generated by oils cannot be floated up. However, the existing micro-nano bubble generator has low survivability of the generated bubbles and few performances and cannot achieve an ideal purification effect to the water body. Therefore, it is very necessary to provide a micro-nano bubble generator to solve the above problems.

Summary

The disclosure is intended to provide a micro-nano bubble generator, so as to solve the problems in the background.

To this end, the following technical solutions are provided by the disclosure: a micro-nano bubble generator includes a bubble generation tank and a gas compressor; the gas compressor is arranged at one side of the bubble generation tank; one side of the gas compressor is provided with a gas meter; one side of the gas meter is provided with a gas releaser; the gas releaser is arranged at one side of the bubble generation tank; one side of the gas compressor is provided with a gas delivery pipe; the gas delivery pipe is penetrated through the gas meter, the gas releaser and the bubble generation tank, and extends to the internal bottom end of the bubble generation tank; a gas solenoid valve is arranged on the gas delivery pipe; the gas solenoid valve is arranged at one side of the gas releaser; the bottom end at one side of the outer wall of the bubble generation tank is provided with a water pump; one side of the water pump is provided with a check valve; one side of the check valve is provided with a water delivery pipe; the water delivery pipe is penetrated through the check valve and the water pump and extends to the internal bottom end of the bubble generation tank; one end of the water delivery pipe is provided with a filter valve; the filter valve is arranged at one side of the check valve; a bubble output pipe is arranged on the top end of the bubble generation tank; the bottom end of the bubble output pipe is penetrated through the top wall of the bubble generation tank and extends to the bubble generation tank; the bottom end of the bubble output pipe is provided with a bubble collector; the bubble collector is arranged in the bubble generation tank; a bubble check valve and a bubble solenoid valve are arranged on the bubble output pipe; and the bubble check valve and the bubble solenoid valve both are arranged outside the bubble generation tank.

Preferably, one side of the outer wall of the bubble generation tank is provided with a control box; the control box is arranged at one side of the gas solenoid valve; a suspended level indicator is arranged in the bubble generation tank; and the suspended level indicator is electrically connected with the control box.

Preferably, one side of the gas compressor is provided with an air inlet; the bottom end of the air inlet is provided with a single gas inlet; the single gas inlet is formed at one side of the gas compressor; and one end of the air inlet is provided with an air purifier.

Preferably, one side of a cavity of the gas releaser is provided with a gas phase and liquid phase chamber; one side of the gas phase and liquid phase chamber is provided with a gas pressure sensor; the gas pressure sensor is arranged on the top of the cavity of the gas releaser; the bottom end of the gas releaser is provided with an air pump; and the output end of the air pump extends to the gas releaser.

Preferably, the filter valve is connected with one end of the water delivery pipe in a locking manner via screw threads; a suspended matter filter net is arranged in the filter valve; one side of the suspended matter filter net is provided with an activated carbon adsorption film; and the suspended matter filter net and the activated carbon adsorption film both are arranged in the filter net.

Preferably, the control box further includes a programmable logic controller (PLC); and the bubble output pipe is arranged in a U shape.

Preferably, the gas compressor, the gas pressure sensor, the air pump, the gas solenoid valve, the water pump, the bubble solenoid valve and the air purifier all are electrically connected with the control box; and the gas pressure sensor is of a PTG500 type.

The disclosure achieves the following technical effects and advantages: according to the disclosure, a large amount of air or single oxygen, ozone and other gases are preliminarily compressed into a lot of non-pressure microbubbles with the diameter of for instance 0.25mm via the gas compressor; then the non-pressure microbubbles with the diameter of for instance 0.25mm are highly dispersed under a partial vacuum condition via the gas phase and liquid phase chamber using the gas releaser to generate microbubbles and nanobubbles having the diameter less than 3pm; and then the microbubbles and the nanobubbles are released to a water body so as to achieve the effect of quickly filling oxygen to the water body and generate lots of free radicals · OH with strong oxidability; and the free radicals · OH perform high-strength oxidation on organic pollutants and heavy metal ions to form relevant heavy metal solid precipitates, CO2 and H₂O at last to achieve the purification effect to water; and moreover, the device structure is simple, the operation is convenient, and the quick micro-nano bubble generation can be implemented.

Brief description of the drawings

Fig. 1 is a structural schematic diagram of an overall sectional view of the disclosure;

Fig. 2 is a structural schematic diagram of a sectional view of a filter valve of the disclosure; and

Fig. 3 is a structural schematic diagram of a control box of the disclosure.

In the drawings, 1-a bubble generation tank; 2-a gas compressor; 3-a gas meter; 4-a gas releaser; 41-a gas phase and liquid phase chamber; 42-a gas pressure sensor; 43-a gas pump; 5-a gas delivery pipe; 6-a gas solenoid valve; 7-a water pump; 8-a check valve; 9-a water delivery pipe; 10-a filter valve; 101-a suspended matter filter net; 102-an activated carbon adsorption film; 11-a bubble output pipe; 12-a bubble collector; 13-a bubble check valve; 14-a bubble solenoid valve; 15- a control box; 151-a PLC; 16-a suspended level indicator; 17-an air inlet; and 18-a single gas inlet.

Detailed description of the embodiments

The technical solutions in the embodiments of the disclosure will be described below clearly and comprehensively with reference to the accompanying drawings in the embodiments of the disclosure. Apparently, the described embodiments merely are some, but not all, of the embodiments. Based on the embodiments in the disclosure, other embodiments obtained by those of ordinary skill in the art without any creative effort shall pertain to the scope of protection of the disclosure.

The disclosure provides a micro-nano bubble generator as shown in Fig. 1-3, which includes a bubble generation tank 1 and a gas compressor 2, being beneficial to preliminarily compressing a great amount of air or single oxygen, ozone and other gasses into a lot of non-pressure microbubbles having the diameter of for instance 0.25mm via the gas compressor 2. The gas compressor 2 is arranged at one side of the bubble generation tank 1. One side of the gas compressor 2 is provided with a gas meter 3, so that a gas input amount is recorded. One side of the gas meter 3 is provided with a gas releaser 4, thereby being beneficial for the non-pressure microbubbles with the diameter of for instance 0.25mm to be highly dispersed under a partial vacuum condition via a gas phase and liquid phase chamber 41 using the gas releaser 4 to generate microbubbles and nanobubbles having the diameter less than 3pm. The gas releaser 4 is arranged at one side of the bubble generation tank 1. One side of the gas compressor 2 is provided with a gas delivery pipe 5. The gas delivery pipe 5 is penetrated through the gas meter 3, the gas releaser 4 and the bubble generation tank 1, and extends to the internal bottom end of the bubble generation tank 1. A gas solenoid valve 6 is arranged on the gas delivery pipe 5, so as to control the gas input according to a demand. The gas solenoid valve 6 is arranged at one side of the gas releaser 4. The bottom end at one side of the outer wall of the bubble generation tank 1 is provided with a water pump 7. One side of the water pump 7 is provided with a check valve 8, so as to prevent a water body from reflowing. One side of the check valve 8 is provided with a water delivery pipe 9. The water delivery pipe 9 is penetrated through the check valve 8 and the water pump 7 and extends to the internal bottom end of the bubble generation tank 1. One end of the water delivery pipe 9 is provided with a filter valve 10, being beneficial to purifying the pollutants in the input water body and avoiding the influence of the pollutants on the generation of the bubbles. The filter valve 10 is arranged at one side of the check valve 8. A bubble output pipe 11 is arranged on the top end of the bubble generation tank 1. The bottom end of the bubble output pipe 11 is penetrated through the top wall of the bubble generation tank 1 and extends to the bubble generation tank 1. The bottom end of the bubble output pipe 11 is provided with a bubble collector 12, thereby being beneficial to collecting micro-nano bubbles in the bubble generation tank 1. The bubble collector 12 is arranged in the bubble generation tank 1. A bubble check valve 13 and a bubble solenoid valve 14 are arranged on the bubble output pipe 11, so as to prevent the bubbles from reflowing and control the discharge of the micro-nano bubbles. The bubble check valve 13 and the bubble solenoid valve 14 both are arranged outside the bubble generation tank 1.

One side of the outer wall of the bubble generation tank 1 is provided with a control box 15. The control box 15 is arranged at one side of the gas solenoid valve 6. A suspended level indicator 16 is arranged in the bubble generation tank 1, being beneficial to feeding back a gas consumed condition in the bubble generation tank 1 and then timely transferring a signal to a PLC 151 and thereby controlling the gas solenoid valve 6 to open and close according to the demand. The suspended level indicator 16 is electrically connected with the control box 15. One side of the gas compressor 2 is provided with an air inlet 17. The bottom end of the air inlet 17 is provided with a single gas inlet 18. The single gas inlet 18 is formed at one side of the gas compressor 2. One end of the air inlet 17 is provided with an air purifier. One side of a cavity of the gas releaser 4 is provided with a gas phase and liquid phase chamber 41. One side of the gas phase and liquid phase chamber 41 is provided with a gas pressure sensor 42. The gas pressure sensor 42 is arranged on the top of the cavity of the gas releaser 4. The bottom end of the gas releaser 4 is provided with an air pump 43. The output end of the air pump 43 extends to the gas releaser 4. The filter valve 10 is connected with one end of the water delivery pipe 9 in a locking manner via screw threads. A suspended matter filter net 101 is arranged in the filter valve 10. One side of the suspended matter filter net 101 is provided with an activated carbon adsorption film 102. The suspended matter filter net 101 and the activated carbon adsorption film 102 both are arranged in the filter net 10, being beneficial to purifying the pollutants in the input water body and avoiding the influence of the pollutants on the generation of the bubbles. The control box 15 includes the PLC151, being beneficial to analyzing a signal transferred by the suspended level indicator 16. The bubble output pipe 11 is arranged in a U shape. The gas compressor 2, the gas pressure sensor 42, the air pump 43, the gas solenoid valve 6, the water pump 7, the bubble solenoid valve 14 and the air purifier all are electrically connected with the control box 15. The gas pressure sensor 42 is of a PTG500 type.

According to the disclosure, the working principle is as follows: when the micro-nano bubble generator works, a gas delivered by the air purifier or the single gas inlet 18 is preliminarily pressed into a lot of non-pressure microbubbles with the diameter of 0.25mm via the gas compressor; then, the non-pressure microbubbles with the diameter of 0.25mm are highly dispersed under a partial vacuum condition via the gas phase and liquid phase chamber 41 using the gas releaser 4 to generate microbubbles and nanobubbles having the diameter less than 3pm; and then the microbubbles and the nanobubbles are released to the bubble generation tank 1 to achieve the effect of quickly filling oxygen with a water body extracted by the water pump 7 and to generate lots of free radicals · OH with strong oxidability; meanwhile, the suspended liquid meter 16 feeds back a gas consumed condition in the bubble generation tank 1 and then timely transfers a signal to the PLC151, thereby controlling the gas solenoid valve 6 to open and close according to a demand. Moreover, the microbubbles and the nanobubbles are collected by the bubble collector 12 and are delivered to an outside water body using the bubble output pipe 11; the high-strength oxidation is performed on organic pollutants and heavy metal ions using the free radicals · OH with the strong oxidability, thereby forming relevant heavy metal solid precipitates, CO2 and H₂O at last to achieve the purification effect on water quality. The microbubbles and the nanobubbles are not increased in water, are not floated up basically, and have special physicochemical properties such as long survival time, large specific surface area, high interfacial activity and capability of having energy and power; the contact area with the water is extremely large, the oxygen dissolved rate is extremely high, the microbubbles and the nanobubbles further may degrade the pollutants from a macromolecular structure into a micromolecular structure by breaking an open loop and are more easily ingested and utilized by indigenous microorganisms, the biochemical degradation efficiency is improved, the nitrogen and phosphorus removal efficiency is high, the dissolved oxygen and the transparency are improved, the self repair of an ecological system is promoted, the self-purification capacity of the water body is improved, the water cluster associated matters are reduced, the water body is activated, the indigenous microorganisms are activated, the biochemical degradation efficiency is improved, the mud floating layer is degraded, the mineralization of a bottom mud surface layer is promoted, and the bottom mud pollutants are inhibited to release to the water body; and thus the purposes of the utility model are achieved.

At last, it should be noted that, the above merely are preferred embodiments of the disclosure and are not intended to limit the disclosure. Although the disclosure has been described in detail with reference to the above embodiments, a person skilled in the art still can make modifications to the technical solutions recorded in each of the embodiments above or make equivalent replacements for some technical characteristics therein. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the disclosure shall be included in the scope of protection of the disclosure.

Claims

Conclusions

A micro-nano-bubble generator, comprising a bubble generation vessel (1) and a gas compressor (2), wherein the gas compressor (2) is arranged on one side of the bubble generation vessel (1); one side of the gas compressor (2) is provided with a gas meter (3), one side of the gas meter (3) is provided with a gas vent (4), the gas vent (4) is arranged on one side of the bubble generating vessel (1) ; a side of the gas compressor (2) is provided with a gas supply pipe (5); the gas supply pipe (5) extends through the gas meter (3), the gas vent (4) and the bubble generation vessel (1) and extends to the internal bottom of the bubble generation vessel (1); a gas solenoid valve (6) is provided on the gas supply pipe (5); the gas solenoid valve (6) is arranged on one side of the gas vent (4); the bottom end on an outside of the bubble generating vessel (1) is provided with a water pump (7); a side of the water pump (7) is provided with a non-return valve (8); a side of the non-return valve (8) is provided with a water supply pipe (9); the water supply pipe (9) extends through the check valve (8) and the water pump (7) and extends to the internal bottom of the bubble generation vessel (1); a side of the water supply pipe (9) is provided with a filter valve (10); the filter valve (10) is arranged on one side of the non-return valve (8); a bubble output pipe (11) is arranged at the upper end of the bubble generating vessel (1); the lower end of the bubble output pipe (11) extends through the top wall of the bubble generation vessel (1) and extends to the bubble generation vessel (1); the lower end of the bubble output pipe (11) is provided with a bubble collector (12); the bubble collector (12) is arranged in the bubble generation vessel (1); a bubble check valve (13) and a bubble solenoid valve (14) are provided on the bubble output pipe (11), and the bubble check valve (13) and the bubble solenoid valve (14) are both arranged outside the bubble generating vessel (1).

The micro nanobubble generator according to claim 1, wherein one side of the outer wall of the bubble generating vessel (1) is provided with a control box (15); the control box (15) is arranged on one side of the gas solenoid valve (6), a hanging level indicator (16) is arranged in the bubble generating vessel (1) and the hanging level indicator (16) is electrically connected to the control box (15) ).

The micro nanobubble generator according to claim 1, wherein one side of the gas compressor (2) is provided with an air inlet (17), the lower end of the air inlet (17) is provided with a single gas inlet (18), the single gas inlet (18) 18) is formed on one side of the gas compressor (2) and one end of the air inlet (17) is provided with an air purifier.

The micro-nano-bubble generator according to claim 1, wherein one side of a cavity of the gas vent (4) is provided with a gas and liquid phase chamber (41); a side of the gas and liquid phase chamber (41) is provided with a gas pressure sensor (42), the gas pressure sensor (42) is provided on the top of the gas vent (4); the underside of the gas vent (4) is provided with an air pump (43), the outlet of the air pump (43) extending to the gas vent (4).

The micro nanobubble generator according to claim 1, wherein the filter valve (10) is connected to an end of the water supply pipe (9) in a locked manner by means of threads; a floating particle filter network (101) is arranged in the filter valve (10), one side of the floating particle filter network (101) is provided with an activated carbon adsorption layer (102); and the suspended particle filter network (101) and the activated carbon adsorption layer (102) are both arranged in the filter network (10).

The micro-nano-bubble generator according to claim 1, wherein the control box (15) further comprises a programmable logic controller (PLC) (151) and the bubble output pipe (11) is arranged in a U-shape.

The micro-nano-bubble generator according to claim 1, 2, 3 or 4, wherein the gas compressor (2), the gas pressure sensor (42), the air pump (43), the gas solenoid valve (6), the water pump (7), the bubble solenoid valve (14) ) and the air purifier are all electrically connected to the control box (15) and the gas pressure sensor (42) is of the PTG500 type.