CN202379802U - Air lift type underwater aeration device based on high pressure air pump system - Google Patents

Abstract

An air-lift underwater aeration device based on a high-pressure air pump system solves the technical problems of complex structure, difficult maintenance, and easy damage in the prior art. The technical solution adopted is that the above-mentioned aeration device The structure includes an open aerator vertically positioned at the bottom of the sewage tank with the aid of a bracket, an aeration pipe connected to the high-pressure air pump system is arranged at the bottom of the aeration chamber, and a swirling flow cutting sewage air is added above the air outlet of the aeration pipe chemical mechanism, and positioned on the inner wall of the aerator. The beneficial effects of the utility model are: the utility model is based on the principle of using air-carrying water to make the sewage rise together with the high-pressure gas, and at the same time, it is divided by the swirl guide to generate multi-layer swirl flow and hit the atomized cutting column, so that The gas-liquid cavitation is shaped like a fine tornado, forcibly dissolving the air in the water, and making the water body in the pool form an up-and-down circulation state, greatly reducing the generation and accumulation of sludge at the bottom of the pool, which is a creative innovation of the traditional aerobic aeration device.

Description

An air-lift underwater aeration device based on a high-pressure air pump system

technical field

The utility model relates to an underwater aeration device, which belongs to the field of sewage treatment, in particular to an air-lifting underwater aeration device based on a high-pressure air pump system.

Background technique

At present, my country's environmental protection industry is developing rapidly, especially the environmental protection equipment manufacturing industry is developing rapidly. There have been some new techniques and new equipment of the world's advanced level. It provides impetus for the development of my country's environmental protection industry. However, our country started late, the investment in scientific research is low, and the level of many basic equipment is far from meeting the requirements of the environmental protection situation. Especially the aerobic dissolved air aeration equipment in the sewage treatment industry has low efficiency, high energy consumption, easy damage, and high repair and maintenance costs. In the prior art, the aeration treatment of the sewage tank generally adopts the mode of stirring, such as CN1257849C discloses an aeration mixer, although its stirring blade can reach the bottom of the sewage tank, and the sewage at the bottom of the sewage tank is sucked to the place close to the water surface, However, the solution to avoiding the generation of anaerobic organisms in the sewage is still to stir the sewage, which only prevents the generation of "dead water" at the bottom of the sewage pool, and cannot fully contact the sewage with the air. Biological, and its equipment structure is complex, and maintenance is relatively difficult. Therefore, it is very necessary to develop an aeration device with high efficiency, low consumption and easy maintenance.

Contents of the invention

In order to solve the technical problems of complex structure, difficult maintenance and easy damage of the sewage aeration device in the prior art, the utility model designs an air-lift underwater aeration device based on a high-pressure air pump system, which adopts an air-lift swirl Cutting the aeration device reduces design and production costs and facilitates maintenance and repair of equipment.

The technical solution adopted by the utility model for realizing the purpose of the above invention is an air-lift underwater aeration device based on a high-pressure air pump system. Mouth-type aerator, the bottom of the aerator is provided with an inflatable pipe connected to the high-pressure air pump system, and a swirl cutting sewage cavitation mechanism is added above the air outlet of the inflatable pipe, and positioned on the inner wall of the aerator.

The beneficial effects of the utility model are: the utility model is based on the principle of using the air-carrying water to make the sewage rise together with the high-pressure gas, and at the same time, it is divided by the swirl guide to generate multi-layer swirl flow and hit the atomized cutting column, so that The gas-liquid cavitation is shaped like a fine tornado, which forcibly dissolves the air in the water, and makes the water body in the pool form an up-and-down circulation state, greatly reducing the generation and accumulation of sludge at the bottom of the pool, which is a creative innovation to the traditional aerobic aeration device; at the same time , the equipment has low manufacturing cost and simple maintenance.

The utility model is described in detail below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is a structural representation of the utility model.

In the accompanying drawings, 1 represents the aeration cylinder, 2 represents the guide rotary vane, 3 represents the baffle, 3-1 represents the atomization cutting column, 4 represents the inflation pipe, and 5 represents the bracket.

Detailed ways

An air-lifting underwater aeration device based on a high-pressure air pump system. The structure of the above-mentioned aeration device includes an open-type aeration cylinder 1 vertically positioned at the bottom of the sewage pool by means of a bracket 5, and the bottom of the aeration cylinder 1 is set The inflatable pipeline 4 communicated with the high-pressure air pump system, and a swirl cutting type sewage cavitation mechanism is added above the air outlet of the inflatable pipeline 4, and is positioned on the inner wall of the aerator 1.

The above swirl cutting sewage cavitation mechanism includes a flow guide vane 2 arranged horizontally and symmetrically above the air outlet of the inflatable pipe 4, and a raised atomization cutting column arranged on the bottom surface above the flow guide vane 2 3-1's baffle 3, the above-mentioned guide rotary 2 and baffle 3 are all positioned on the inner wall of the aerator 1.

There are at least four sets of guide vanes 2 and shielding vanes 3 in the above swirl cutting sewage cavitation mechanism, and they are arranged cross-stacked along the inner wall of the aerator 1 .

The above-mentioned guide vanes 2 adopt spiral blades.

The shape of the atomized cutting columns 3 - 1 distributed on the above-mentioned blocking sheet 3 is one of hemispherical, cylindrical and conical.

The design principle of this utility model is: this device is based on the principle of air lift: in the aerator 1, high-pressure air is sprayed upward through the inflatable pipe 4 to form a siphon power, and the water and sludge at the bottom of the pool are sucked up to make it quickly rise. The upper part of the aeration cylinder 1 is equipped with a diversion vane 2 and a baffle 3 with an atomization cutting column 3-1. The diversion vane 2 is used to divert air and water to form a tornado, and the tornado-shaped air carries water. The swirling flow hits the baffle 3 at a high speed, and the atomizing cutting column 3-1 on the baffle 3 cuts the swirling flow to disperse the air bubbles and quickly reduce the pressure, thereby generating cavitation. So repeated, multiple diversions, multiple cutting impacts, the oxygen in the air is forcibly dissolved in the water. Since the water and mud at the bottom of the pool are sucked up, circulating flow and secondary dissolved oxygen are generated in the pool, which prevents the generation and accumulation of anaerobic sludge at the bottom of the pool, and better solves the problem of low dissolved oxygen efficiency and sludge at the bottom of the pool deposition, the dissolved oxygen is more than 19%, which is more than double that of the current aeration products. The device is simple in structure, firm and durable, not easy to be damaged, maintenance-free, and the service life can be increased by 5 to 10 times.

The utility model has firm and durable structural features, which are unmatched by other products. The whole structure is not easy to be damaged, basically no maintenance is required, and the material can be made into stainless steel, ordinary steel, ABS, PVC and other products according to the nature of sewage and user needs. The innovation of the utility model is to overcome the low efficiency of dissolved oxygen, capacity damage and difficult maintenance of other aeration products, and greatly reduce the cost of sewage treatment. It is an innovative innovation of traditional dissolved oxygen aeration products.

Claims (5)

1. gas stripping type underwater aeration device based on the high-pressure pump system; It is characterized in that: comprise in the structure of described aerating apparatus by support (5) vertically being positioned at the opened type aeration cylinder (1) at the bottom of the sewage lagoon; Aeration cylinder (1) bottom is provided with the gas ducting (4) with the high-pressure pump system connectivity, and sets up eddy flow cutting type sewage cavitation mechanism in the top, air outlet of gas ducting (4) and be positioned on aeration cylinder (1) inwall.

2. a kind of gas stripping type underwater aeration device according to claim 1 based on the high-pressure pump system; It is characterized in that: comprise in the described eddy flow cutting type sewage cavitation mechanism that horizontal symmetrical is arranged on water conservancy diversion blade (2) and the washer (3) that the bottom surface that is arranged on water conservancy diversion blade (2) top is distributed with convex type atomizing cutting post (3-1) of the top, air outlet of gas ducting (4), above water conservancy diversion blade (2) and washer (3) all are positioned on aeration cylinder (1) inwall.

3. a kind of gas stripping type underwater aeration device based on the high-pressure pump system according to claim 2 is characterized in that: water conservancy diversion blade (2) in the described eddy flow cutting type sewage cavitation mechanism and washer (3) are respectively provided to few four groups and along the cross layered setting of aeration cylinder (1) inwall.

4. a kind of gas stripping type underwater aeration device based on the high-pressure pump system according to claim 2 is characterized in that: described water conservancy diversion blade (2) adopts screw-blade.

5. a kind of gas stripping type underwater aeration device based on the high-pressure pump system according to claim 2 is characterized in that: the shape of the atomizing cutting post (3-1) that described washer (3) go up to distribute is a kind of in hemispherical, cylindric, the taper.