Micro-nano dissolved air releaser and working method

Abstract

The invention discloses a micro-nano dissolved air releaser and a working method, and relates to the technical field of water treatment.The micro-nano dissolved air releaser comprises a tank body, and a water supply assembly is fixedly installed on the outer side wall of the tank body; an air inlet component is mounted on the outer vertical surface of one end of the tank body; the center of the outer vertical surface of the other end of the tank body is communicated with the mixed water outlet pipe. According to the micro-nano dissolved gas releaser and the working method, the water inlet pipe is tangent to the outer arc surface of the tank body, the water outlet of the water inlet pipe is fixedly connected with the water inlet of the flow guide pipe, and the flow guide pipe is located in the tank body, so that water flow can rotate in the tank body to form vortex, and quantitative gas is mixed through the gas release head; high-speed collision with water molecules is carried out to decompose the gas into micron-scale and nano-scale bubble solutions, and tests prove that the saturation retention time of the nano-scale bubbles in the water body exceeds 72 hours; and the device is simple in structure, low in production cost, suitable for various corrosive gas sources, high in durability, small in size, low in water pressure requirement of the required matched water, high in yield and low in energy consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, in particular to a micro-nano dissolved gas releaser and a working method thereof. BACKGROUND

[0002] One of the key points of water purification in factory aquaculture is to improve the dissolved oxygen content in the water, and the dissolved oxygen is a key factor affecting the feeding rate, feed utilization rate, weight gain rate and morbidity of aquatic products, which can ensure the survival rate, quality and yield of aquatic products and the quality of the aquaculture environment.

[0003] In the freshwater aquaculture industry, one of the main measures to improve or maintain the dissolved oxygen content in the water is to use aeration oxygenation equipment, but the existing oxygenation equipment consumes high energy to produce nano-bubbles through an impeller or a brush needle, and the efficiency of dissolved oxygen production is low.

[0004] Therefore, how to develop a micro-nano dissolved gas releaser and a working method thereof, reduce the required water pressure requirement of the matching purification, reduce energy consumption, and improve the efficiency of dissolved oxygen, has become a technical problem to be solved by the technical personnel in the field. SUMMARY

[0005] The purpose of the present application is to provide a micro-nano dissolved gas releaser and a working method thereof, which solves the problems listed in the background art.

[0006] To solve the above technical problems, the present application adopts the following technical solutions: The micro-nano dissolved gas releaser comprises a tank body, a water supply assembly is fixedly installed on the outer side wall of the tank body; An air inlet assembly is installed on one end of the outer facade of the tank body, and the center of the other end of the outer facade of the tank body is communicated with a mixed water outlet pipe.

[0007] Preferably, a flow guide plate is installed on the inner side wall of the tank body, and the installation position of the flow guide plate is close to the mixed water outlet pipe.

[0008] Preferably, the water supply assembly comprises a water inlet pipe, one end of the water inlet pipe is communicated with the side wall of the tank body, and the other end of the water inlet pipe is communicated with the water outlet of a variable frequency pump. A liquid electric control valve is installed on the water inlet pipe.

[0009] Preferably, the water inlet pipe is tangent to the outer arc surface of the tank body.

[0010] Preferably, the water outlet of the water inlet pipe is fixedly connected with the water inlet of a flow guide pipe, and the flow guide pipe is located in the interior of the tank body.

[0011] Preferably, the air inlet assembly comprises an air inlet pipe, one end of the air inlet pipe is communicated with the air supply source, the other end of the air inlet pipe is communicated with the tank body, and an air inlet electric control valve and a pipeline pressure sensor are respectively installed on the air inlet pipe; An air outlet of the air inlet pipe is provided with a gas release head.

[0012] Preferably, the gas release head is coaxial with the mixed water outlet pipe. And the gas release head is located at the end of the water outlet.

[0013] The working method of the micro-nano gas dissolving and releasing device comprises the following steps: Step one: according to the measurement data of the sensor on the water body, the working state of the frequency conversion pump is adjusted, and water is supplied to the inside of the tank body through the water inlet pipe, so that the water flow forms a vortex in the inside of the tank body; Step two: air supply, the air supply amount of the air supply source to the inside of the tank body is controlled through the air inlet electric control valve and the pipeline pressure sensor, and the micro gas bubbles are introduced into the water body in the inside of the tank body through the gas release head, and the air supply position is located behind the water flow; Step three: flow stabilization and fragmentation, the vortex containing the micro gas bubbles passes through the flow guide plate, and the vortex is further guided and the micro gas bubbles are fragmented; Step four: water flow acceleration, when the water flow flows out from the large-diameter tank body to the small-diameter mixed water outlet pipe, the water flow velocity increases, and the dissolved oxygen content in the water body increases.

[0014] Compared with the prior art, the beneficial technical effects of the present application are: The micro-nano gas dissolving and releasing device of the present application is tangent to the outer arc surface of the tank body through the water inlet pipe, the water outlet of the water inlet pipe is fixedly connected with the water inlet of the flow guide pipe, and the flow guide pipe is located in the inside of the tank body, so that the water flow can rotate to form a vortex in the inside of the tank body, and a certain amount of gas is mixed into the water through the gas release head, and the gas is decomposed into micron and nano level bubbles by high-speed collision with water molecules. It has been tested and verified that the saturation residence time of the nano level bubbles in the water body is more than 72 hours. And the structure is simple, the production cost is low, it is suitable for various corrosive gas sources, the durability is high, the volume is small, the required matching water purification pressure is low, the yield is high, and the energy consumption is low. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in combination with the drawings.

[0016] Figure 1 It is a front view schematic diagram of the micro-nano gas dissolving and releasing device of the present application. Figure 2 It is a front view schematic diagram (partially) of the micro-nano gas dissolving and releasing device of the present application. Figure 3 It is a side view schematic diagram (partially) of the micro-nano gas dissolving and releasing device of the present application. Figure 4 It is a sectional view of the tank body of the present application; Figure 5 It is a perspective view of the sectional view of the tank body of the present application; Figure 6 It is a front view of the water-gas running state of the present application; Figure 7 It is a side view of the water-gas running state of the present application.

[0017] Marked for explanation: 1, air inlet electric control valve; 2, pipeline pressure sensor; 3, tank body; 4, water inlet pipe; 5, liquid electric control valve; 6, variable frequency pump; 7, mixed water outlet pipe; 8, air inlet pipe; 9, gas release head; 10, flow guide pipe; 11, flow guide plate. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects of the present application more clear, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0019] As shown in Figures 1-7 The micro-nano gas releasing device comprises a tank body 3, and a water supply assembly is fixedly installed on the outer side wall of the tank body 3. An air inlet assembly is installed on the outer side of one end of the tank body 3, and the center of the outer side of the other end of the tank body 3 is in communication with the mixed water outlet pipe 7. The water flows into the tank body under a specific pressure through the water supply assembly, vortex cavitation is formed through the pipeline flow guide of the water supply assembly, a certain amount of gas is mixed through the air inlet assembly, and the gas is decomposed into micron and nano bubbles in water through high-speed cross collision with water molecules. It has been tested and verified that the nano bubbles can be saturated in water for more than 72 hours. Further, the tank body 3 is arranged in water as a whole.

[0020] Specifically, a flow guide plate 11 is installed on the inner side wall of the tank body 3, and the installation position of the flow guide plate 11 is close to the mixed water outlet pipe 7. The flow guide plate can guide the treated water and end the rotating state of the water flow.

[0021] Specifically, the water supply assembly comprises a water inlet pipe 4, one end of the water inlet pipe 4 is in communication with the side wall of the tank body 3, and the other end of the water inlet pipe 4 is in communication with the water outlet of a variable frequency pump 6. A liquid electric control valve 5 is installed on the water inlet pipe 4, the rotating speed of the motor of the variable frequency pump is controlled, the flow and pressure of the pump are further changed, and the water flow pressure in the water supply process can be adjusted at any time.

[0022] Specifically, the water inlet pipe 4 is tangent to the outer arc surface of the tank body 3, and the water outlet of the water inlet pipe 4 is fixedly connected with the water inlet of the flow guide pipe 10, and the flow guide pipe 10 is located inside the tank body 3, so that the water flow can rotate inside the tank body to form a vortex.

[0023] Specifically, the air inlet assembly includes an air inlet pipe 8, one end of the air inlet pipe 8 is in communication with a gas source, and the other end of the air inlet pipe 8 is in communication with the tank body 3, and the air inlet pipe 8 is respectively provided with an air inlet electric control valve 1 and a pipeline pressure sensor 2; The air outlet of the air inlet pipe 8 is provided with a gas release head 9.

[0024] Specifically, the gas release head 9 is coaxial with the mixed water outlet pipe 7. And the gas release head 9 is located at the end of the water outlet. The gas release head mixes a certain amount of gas into the constant vortex in the tank body to collide and rub with water molecules, so as to obtain micron and nanometer bubbles, and the proportion can be switched according to demand.

[0025] The working method of the micro-nano gas releasing device includes the following steps: Step one, according to the measurement data of the sensor on the water body, the rotating speed, flow and lift of the variable frequency pump are adjusted, and water is supplied to the inside of the tank through the water inlet pipe, so that the water flow forms a vortex inside the tank, increases the contact area between the gas source and the water body, and facilitates the full fusion of the external gas source and the water body; Step two, gas supply, the gas supply amount of the gas source to the inside of the tank is controlled through the air inlet electric control valve and the pipeline pressure sensor, and the micro-bubbles are introduced into the water body in the tank through the gas release head, and the gas supply position is located behind the water flow, on the one hand, it avoids the blockage of the gas release head in the working process, on the other hand, the water flow in the tank body circulates in a vortex, which greatly guarantees the uniformity of the dissolved oxygen distribution in the water; Step three, stable flow and fragmentation, the vortex containing micro-bubbles passes through the flow guide plate, and further, the vortex is guided and the micro-bubbles are fragmented; Step four, water flow acceleration, when the water flow flows out from the large-diameter tank body to the small-diameter mixed water outlet pipe, the water flow velocity increases, and the dissolved oxygen content in the water body increases.

[0026] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0027] The above-described embodiments are merely preferred ways of implementing the present application, and are not intended to limit the scope of the present application. Any modifications and improvements made by those skilled in the art to the technical solutions of the present application without departing from the design spirit of the present application shall fall within the scope of protection of the present application.

Claims

1. A micro / nano dissolved gas release device, characterized in that: Includes a tank (3), on which a water supply assembly is fixedly installed; An air intake assembly is installed on one end of the outer facade of the tank (3), and the center of the other end of the outer facade of the tank (3) is connected to the mixing outlet pipe (7).

2. The micro / nano dissolved gas release device according to claim 1, characterized in that: A guide plate (11) is installed on the inner wall of the tank (3), and the guide plate (11) is installed close to the mixing outlet pipe (7).

3. The micro / nano dissolved gas release device according to claim 1, characterized in that: The water supply assembly includes an inlet pipe (4), one end of which is connected to the side wall of the tank (3), and the other end of which is connected to the outlet of the variable frequency pump (6). A liquid electro-hydraulic valve (5) is installed on the water inlet pipe (4).

4. The micro / nano dissolved gas release device according to claim 3, characterized in that: The water inlet pipe (4) is tangent to the outer arc surface of the tank (3).

5. The micro / nano dissolved gas release device according to claim 4, characterized in that: The outlet of the water inlet pipe (4) is fixedly connected to the inlet of the guide pipe (10), and the guide pipe (10) is located inside the tank body (3).

6. The micro / nano dissolved gas release device according to claim 1, characterized in that: The air intake assembly includes an air intake pipe (8), one end of which is connected to an air supply source, and the other end of which is connected to the tank (3). An air intake electric control valve (1) and a pipeline pressure sensor (2) are respectively installed on the air intake pipe (8). The air outlet of the air inlet pipe (8) is equipped with a gas release head (9).

7. The micro / nano dissolved gas release device according to claim 6, characterized in that: The gas release head (9) is coaxial with the mixing water outlet pipe (7); The gas release head (9) is located at the end of the water outlet.

8. A method for operating a micro / nano dissolved gas release device, as described in any one of claims 1-7, characterized in that: Includes the following steps: Step 1: Based on the measurement data of the water body by the sensor, adjust the working state of the variable frequency pump and supply water into the tank through the water inlet pipe to make the water flow form a vortex inside the tank. Step 2: Gas supply. The gas supply volume to the tank is controlled by the air intake electronic control valve and the pipeline pressure sensor. Tiny air bubbles are introduced into the water inside the tank through the gas release head, and the gas supply position is located behind the water flow. Step 3: Flow Stabilization and Breakup. The vortex containing tiny bubbles passes through the guide plate, which further guides the vortex and breaks up the tiny bubbles. Step 4: Water flow is accelerated. As the water flows from the large-diameter tank to the small-diameter mixing outlet pipe, the water flow velocity increases, thereby increasing the dissolved oxygen content in the water.

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