Flow expanding and pushing micro-nano aerator

Abstract

The invention discloses a flow expanding and pushing micro-nano aerator, which belongs to the technical field of environmental protection equipment, and specifically comprises a large circular pipe, a middle circular pipe, a small circular pipe, a base, a pressure tank, a multi-stage gas dissolving machine, a submersible motor, a flexible pipe, a stainless steel spring, a floating body, a fixed steel chisel, a hoisting ring, an antifouling mesh enclosure and an electric box. Through the design of the concentric circular pipe structure, water body flow expansion is realized by utilizing the fluid mechanics principle, and the water body pushing flow is greatly improved. A multi-stage gas dissolving machine and a micro-bubble aeration technology are adopted, so that the gas-liquid contact area is increased, and the oxygen dissolving efficiency is improved. The structural design is optimized, the operation energy consumption of equipment is reduced, and the operation cost is reduced. The equipment is fixed through the fixing steel chisel and the hoisting ring, so that the stability of the equipment in the water body is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection equipment, and in particular to a flow expansion and plug flow micro-nano aerator. Background Art

[0002] Aeration technology is widely used in water treatment and water environment restoration projects. Taking domestic sewage treatment as an example, most sewage treatment plants now use the activated sludge method. The choice of aeration method largely determines the utilization rate of oxygen by microorganisms in the activated sludge, thereby affecting the treatment efficiency of sewage. In water environment restoration, aeration and reoxygenation is also one of the most important engineering contents.

[0003] Traditional plug-flow micro-nano aerators use a water pump to push the water to flow, and inject air into the water through an aeration device to increase the dissolved oxygen content in the water. However, traditional equipment has the following problems: 1. Low efficiency in promoting water flow: The water flow rate of traditional push-flow micro-nano aerators is only equal to the flow rate of the water pump, and it is impossible to achieve large-scale water circulation.

[0004] 2. Low aeration efficiency: The aeration method of traditional equipment is mostly large bubble aeration, the bubble diameter is large, the gas-liquid contact area is small, and the oxygen dissolution efficiency is low.

[0005] 3. High energy consumption: Due to the unreasonable design of the equipment structure, the traditional plug-flow micro-nano aerator consumes high energy during operation and has high operating costs.

[0006] Therefore, it is necessary to develop a flow expansion and push flow micro-nano aerator to solve the problems of low efficiency and high energy consumption of traditional equipment. Summary of the invention

[0007] The object of the present invention is to provide a flow expansion and push flow micro-nano aerator with high oxygen dissolution efficiency and low energy consumption.

[0008] In order to achieve the above object, the present invention provides the following technical solutions: A flow expansion and push flow micro-nano aerator, comprising a large round tube, a medium round tube, a small round tube, a base, a pressure tank, a multi-stage aerator, a submersible motor, a flexible tube, a stainless steel spring, a float, a fixed steel chisel, a hoisting ring, an anti-fouling mesh cover, and an electric box; The small round tube is connected to one end of the pressure tank through a pipeline; the other end of the pressure tank is connected to the water outlet pipe of the multi-stage dissolved air machine through a pipeline; an anti-fouling mesh cover is installed at the water inlet of the multi-stage dissolved air machine, and the multi-stage dissolved air machine is connected to the submersible motor through a coupling; a flexible tube is installed at the air inlet of the multi-stage dissolved air machine, and a stainless steel spring is sleeved on the outside of the flexible tube; a float is installed at the other end of the flexible tube, the pressure tank is arranged on one side of the large round tube and installed on the base, and the multi-stage dissolved air machine and the submersible motor are installed on the pressure tank; fixed steel chisels are installed on the four corners of the base, and the fixed steel chisels pass through the base and are fixed by a lifting ring; the electric box is installed on the shore and connected to the submersible motor through a waterproof cable.

[0009] Specifically, the large circular tube, the middle circular tube and the small circular tube are connected in sequence to form a concentric circle structure; the three circular tubes are connected by iron sheets and fixed on the base.

[0010] Specifically, the length of the large circular tube is greater than that of the medium circular tube, and there is a certain distance between the outlet of the small circular tube and the outlet of the medium circular tube.

[0011] The beneficial effects of the present invention are: 1. Efficient flow expansion: Through the design of concentric tube structure, the principle of fluid mechanics is used to achieve water flow expansion, greatly improving the water flow rate.

[0012] 2. Efficient aeration: Use multi-stage aerator and micro-bubble aeration technology to increase the gas-liquid contact area and improve oxygen dissolution efficiency.

[0013] 3. Energy saving and environmental protection: optimize structural design, reduce equipment operation energy consumption, and reduce operating costs.

[0014] 4. Stable operation: Fix the equipment by fixing steel chisels and lifting rings to ensure the stability of the equipment in the water.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a flow expansion and plug flow micro-nano aerator shown in the present invention; Figure 2 It is a schematic diagram of a top view and cross-section structure of a flow expansion and plug flow micro-nano aerator shown in the present invention; Figure 3 It is a schematic diagram of the side cross-sectional structure of a flow expansion and plug flow micro-nano aerator shown in the present invention; Figure 4 It is a schematic diagram of the main cross-sectional structure of a flow expansion and plug flow micro-nano aerator shown in the present invention; Figure 5 It is a rear cross-sectional structural schematic diagram of a flow expansion and plug flow micro-nano aerator shown in the present invention. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] See also Figure 1~Figure 5 The present application provides a flow expansion and push flow micro-nano aerator, comprising a large round tube 1, a medium round tube 2, a small round tube 3, a base 4, a pressure tank 5, a multi-stage aerator 6, a submersible motor 7, a flexible tube 8, a stainless steel spring 9, a float 10, a fixed steel chisel 11, a hoisting ring 12, an anti-fouling mesh cover 13, and an electrical box 14; The large circular tube 1, the medium circular tube 2, and the small circular tube 3 are connected in sequence to form a concentric circle structure. The large circular tube 1 is longer than the medium circular tube 2, and the outlet of the small circular tube 3 is at a certain distance from the outlet of the medium circular tube 2. The three circular tubes are connected by iron sheets and fixed on the base 4; the small circular tube 3 is connected to one end of the pressure tank 5 by a pipe. The other end of the pressure tank 5 is connected to the water outlet pipe of the multi-stage air dissolving machine 6 by a pipe. The water inlet of the multi-stage air dissolving machine 6 is installed with an anti-fouling mesh cover 13, and the multi-stage air dissolving machine 6 is connected with the submersible motor 7 by a coupling. The air inlet of the multi-stage air dissolving machine 6 is installed with a flexible tube 8, and a stainless steel spring 9 is arranged outside the flexible tube 8; the other end of the flexible tube 8 is installed with a float 10 to ensure that the air inlet is always above the water surface. The pressure tank 5 is arranged on one side of the large circular tube 1 and installed on the base 4, and the multi-stage air dissolving machine 6 and the submersible motor 7 are installed on the pressure tank 5. The four corners of the base 4 are provided with fixed steel chisels 11, which pass through the base 4 and are fixed by a hoisting ring 12. A distribution box 14 is installed on the shore and connected to the submersible motor 7 by a waterproof cable.

[0022] Aeration function The multi-stage air dissolving machine 6 sucks air through the flexible tube 8 and fully mixes the air with the water to form microbubbles. The microbubbles are injected into the water through the pressure tank 5 and the small round tube 3 to increase the gas-liquid contact area and improve the oxygen dissolution efficiency.

[0023] Working principle: The submersible motor 7 drives the multi-stage air dissolving machine 6 to operate, and the water is sucked into the multi-stage air dissolving machine 6 through the anti-fouling mesh cover 13. The water treated by the multi-stage air dissolving machine 6 enters the pressure tank 5 and is ejected through the small round tube 3. Due to the design of the concentric circular tube structure, the water forms a high-speed flow between the small round tube 3 and the middle round tube 2. The expansion effect is achieved by using the principle of fluid mechanics, which greatly increases the water flow rate. The water pump ejects a flow rate of Q1 through the small round tube 3, driving the flow rate of Q2 in the middle round tube 2, and then driving the flow rate of Q3 in the large round tube 1. The actual ejected flow rate is Q1+Q2+Q3. In addition, the flow rate of micro-nano bubbles is higher than the ejected water flow rate, thereby accelerating the water flow rate. After testing, the actual ejected flow rate is about 10 times the water pump flow rate.

[0024] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0025] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A flow expansion and plug flow micro-nano aerator, characterized in that: Including large round tube, medium round tube, small round tube, base, pressure tank, multi-stage dissolved air machine, submersible motor, flexible tube, stainless steel spring, float, fixed steel chisel, lifting ring, anti-fouling mesh cover, electric box; The small round tube is connected to one end of the pressure tank through a pipeline; the other end of the pressure tank is connected to the water outlet pipe of the multi-stage dissolved air machine through a pipeline; an anti-fouling mesh cover is installed at the water inlet of the multi-stage dissolved air machine, and the multi-stage dissolved air machine is connected to the submersible motor through a coupling; a flexible tube is installed at the air inlet of the multi-stage dissolved air machine, and a stainless steel spring is sleeved on the outside of the flexible tube; a float is installed at the other end of the flexible tube, the pressure tank is arranged on one side of the large round tube and installed on the base, and the multi-stage dissolved air machine and the submersible motor are installed on the pressure tank; fixed steel chisels are installed on the four corners of the base, and the fixed steel chisels pass through the base and are fixed by a lifting ring; the electric box is installed on the shore and connected to the submersible motor through a waterproof cable.

2. A flow expansion and plug flow micro-nano aerator as claimed in claim 1, characterized in that: The large circular tube, the middle circular tube and the small circular tube are sleeved in sequence to form a concentric circle structure; the three circular tubes are connected by iron sheets and fixed on the base.

3. A flow expansion and plug flow micro-nano aerator as claimed in claim 1, characterized in that: The length of the large circular tube is greater than that of the medium circular tube, and there is a certain distance between the outlet of the small circular tube and the outlet of the medium circular tube.

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