CN214598328U

CN214598328U - Gas-liquid mixer

Info

Publication number: CN214598328U
Application number: CN202120383710.2U
Authority: CN
Inventors: 赵山峰; 赵满峰
Original assignee: Jilin Million Jiyuan Environmental Protection Equipment Co
Current assignee: Jilin Million Jiyuan Environmental Protection Equipment Co
Priority date: 2021-02-21
Filing date: 2021-02-21
Publication date: 2021-11-05
Anticipated expiration: 2031-02-21

Abstract

The gas-liquid mixer is used for sewage treatment and is provided with a tank body, wherein the center of one end of the tank body is sequentially provided with a liquid inlet hole and an inlet taper hole from outside to inside, the narrow end of the inlet taper hole is connected with the liquid inlet hole, the other end of the tank body is sequentially provided with a horn hole, an ejection hole and an outlet taper hole from inside to outside, the narrow end of the horn hole is connected with one end of the ejection hole, and the other end of the ejection hole is connected with the narrow end of the outlet taper hole; the aperture of the spraying hole is larger than that of the liquid inlet hole, and the axis of the spraying hole is superposed with that of the liquid inlet hole; an annular gap is arranged between the edge of the wide end of the horn hole and the inner wall of the tank body; the tank wall of the tank body is provided with an air passage surrounding the horn hole or the jet hole, the air passage is communicated with the gap, and the tank wall of the tank body is provided with an air inlet communicated with the air passage; the gas-liquid mixer can increase the contact area and the contact time of the sewage and the air, and effectively improve the aeration effect of the sewage.

Description

Gas-liquid mixer

Technical Field

The utility model relates to a sewage treatment professional equipment specifically is a gas-liquid mixer

Background

In the sewage treatment field, utilize the bacterium to decompose, utilize the organic matter in domestic sewage and the industrial waste water, the organic matter is decomposed the back, can make sewage purify gradually, the bacterium needs aerobic environment can grow, breed, the organic matter in the sewage can be by better decomposition, consequently, one of the aeration mode that commonly uses in the sewage pond, it is in the sewage pond to pump sewage to the eminence with the water pump and spout to falling into the sewage pond aloft, the purpose is the area of contact who increases sewage and air, but spun sewage can fall back to the sewage pond in because of gravity rapidly, the dead-time is short, the aeration mode effect that only uses the water pump to raise water is not good.

Disclosure of Invention

The utility model aims at providing a gas-liquid mixer for sewage treatment can increase the area of contact and the contact time of sewage and air, effectively improves the aeration effect of sewage.

The technical scheme of the utility model is that: the gas-liquid mixer is characterized in that: the device is provided with a tank body, wherein the center of one end of the tank body is sequentially provided with a liquid inlet hole and an inlet taper hole from outside to inside, the narrow end of the inlet taper hole is connected with the liquid inlet hole, the other end of the tank body is sequentially provided with a horn hole, an ejection hole and an outlet taper hole from inside to outside, the narrow end of the horn hole is connected with one end of the ejection hole, and the other end of the ejection hole is connected with the narrow end of the outlet taper hole; the aperture of the spraying hole is larger than that of the liquid inlet hole, and the axis of the spraying hole is superposed with that of the liquid inlet hole; an annular gap is arranged between the edge of the wide end of the horn hole and the inner wall of the tank body; the tank wall of the tank body is provided with an air passage surrounding the horn hole or the ejection hole, the air passage is communicated with the gap, and the tank wall of the tank body is provided with an air inlet communicated with the air passage.

The wide end of the inlet taper hole is connected with the inner wall of the tank body.

A plurality of gaps are uniformly distributed on the upper edge of the outer opening edge of the horn hole.

The diameter of the wide mouth end of the horn hole is larger than that of the wide mouth end of the outlet taper hole.

The cone angle of the inlet cone hole is larger than that of the outlet cone hole.

The inner wall surface of the tank body is provided with evenly distributed grooves along the circumference.

The inner wall surface of the tank body is rough.

The utility model has the advantages that: the air channel is communicated with the outside atmosphere through the air inlet hole, the liquid inlet hole is communicated with the water outlet hole of the water pump, sewage is pumped into the liquid inlet hole and is sprayed out of the spraying hole, negative pressure is generated in the tank body due to the fact that the flow speed is accelerated, air in the air channel is sucked out through the annular gap, the air in the air channel is sucked out through the annular gap, due to the fact that the inlet taper hole is in a conical diffusion shape, peripheral liquid of a jet flow of the pressure sewage is diffused and sprayed towards the direction of the inner wall of the tank body in the pressure releasing process, strong convection is formed between the peripheral liquid and the air sucked in the gap, a large amount of turbulence is generated, the air is forced to rotate and turn back near the annular gap according to the flow direction of the liquid, and tiny bubbles generated by the air are dissolved in the sewage to form an air-liquid mixture in the process; and the aperture of the ejection hole is larger than that of the liquid inlet hole, the gas-liquid mixture and the sucked air are continuously mixed and compressed with sewage in the jet flow in the bell-mouthed hole around the jet flow to generate tiny bubbles, and the bubbles and the gas are cut into tiny bubbles to be blended and mixed with the tiny bubbles when the sewage is diffused and ejected at the conical opening end of the ejection hole, so that the finally ejected sewage is full of the tiny bubbles, the size of the bubbles is small, the rising and breaking speeds in the sewage tank are slow, the contact area and the contact time of the sewage and the air can be effectively increased, and the aeration effect of the sewage is further improved. According to the principle, the notches can produce turbulence with more quantity and different positions, and further finer micro bubbles are generated; the wide end of the inlet taper hole is connected with the inner wall of the tank body, namely the diameter of the wide end of the inlet taper hole is the same as the inner diameter of the tank body, the wide end of the inlet taper hole is expanded to the inner wall of the tank body, so that sewage can be diffused on the inner wall of the tank body to be extruded and impacted with air convected on the inner wall, and more violent turbulence is formed to stir and mix the sewage and the air; the inner space of the tank body forms a mixing cavity, and the grooves and the rough surfaces arranged on the inner wall of the tank body can lead the air and the sewage to be sputtered and mixed in a tooth-staggered way, so that more meticulous turbulence is generated at different positions and layers, and the air is further refined and divided into more tiny bubbles.

This application adopts the clearance relative with sewage advancing direction as annular inlet channel, consequently the air is rolled over at annular clearance and is cut the in-process to the horn hole and separate into small bubble, along with the rising of sewage pumping pressure, the volume of bubble is less the volume and is higher, can set up sewage pumping pressure according to the practical application environment, just can improve aeration effect, compare traditional formula aeration equipment that pumps, same pumping sewage, this application gas-liquid mixer can cut into the micro bubble pressmixing with air in sewage, can greatly increase the area of contact of air and water, and small bubble is longer at aquatic suspension time, be favorable to the bacterial growth in the sewage, breed.

Drawings

FIG. 1 is a schematic structural diagram of a gas-liquid mixer according to the present invention

Fig. 2 is a schematic sectional view taken along a-a in fig. 1.

Fig. 3 is a schematic sectional view taken along the direction B-B in fig. 1.

In the figure, the cone angles of a tank body 1, an ejection hole 2, an outlet cone hole 3, a liquid inlet hole 4, an axial lead of a liquid inlet hole 5, the cone angle of an inlet cone hole 6, an inlet cone hole 7, the inner wall of a tank body 8, a gap 9, a gap 10, an air passage 11, an air inlet hole 12, a horn hole 13, an outlet cone hole 14 and an axial lead of an ejection hole 15 are shown.

Detailed Description

A gas-liquid mixer, as shown in fig. 1 to 3, which has a tank body 1, wherein a liquid inlet 4 and an inlet taper hole 7 are sequentially arranged in the center of one end of the tank body from outside to inside, the narrow end of the inlet taper hole is connected with the liquid inlet, the other end of the tank body is sequentially provided with a horn hole 13, an ejection hole 2 and an outlet taper hole 14 from inside to outside, the narrow end of the horn hole is connected with one end of the ejection hole, and the other end of the ejection hole is connected with the narrow end of the outlet taper hole; the aperture of the spraying hole is larger than that of the liquid inlet hole, and the axis 15 of the spraying hole is superposed with the axis 5 of the liquid inlet hole; an annular gap 10 is arranged between the edge of the wide end of the horn hole and the inner wall 8 of the tank body; the tank wall of the tank body is provided with an air passage 11 surrounding the horn hole or the jet hole, the air passage is communicated with the gap, and the tank wall of the tank body is provided with an air inlet 12 communicated with the air passage. The gas-liquid mixer is made of metal, ceramic, plastic, resin, glass and the like, as shown by a dotted line in fig. 1, the gas-liquid mixer can be divided into two parts, the two parts are combined into a whole in a bonding, welding or welding mode after being prefabricated in a split mode, and the integrated gas-liquid mixer can be obtained through technologies such as surfacing, sand molding and 3D printing. The utility model provides a gas-liquid mixer's entrance point design in feed liquor hole has the connecting portion that carries out the butt joint with water pipe or water pump delivery port, including conventional mouth of pipe sealing connecting piece such as quick-connect joint, screw thread, ring flange.

The wide end of the inlet taper hole is connected with the inner wall of the tank body along the edge, namely the diameter of the wide end of the inlet taper hole is the same as the inner diameter of the tank body, and the edge of the wide end of the inlet taper hole is connected with the inner wall of the tank body along the circumference. The outer opening edge of the horn hole is uniformly provided with a plurality of notches 9 along the periphery, the notches are square notches or triangular notches, and the corner ends in the shapes can form more violent and obvious turbulence. The diameter of the wide mouth end of the horn hole is larger than that of the wide mouth end of the outlet taper hole, so that the pressure intensity during ejection can be improved, the vacuum degree in the tank is further improved, and more air is sucked. The angle of taper 6 of the inlet cone hole is greater than the angle of taper 3 of the outlet cone hole. The inner wall surface of the tank body is circumferentially provided with uniformly distributed grooves, particularly fine shallow grooves, the depth of each groove is less than 0.8 mm and more than or equal to 0.1 mm, each groove comprises tooth grooves, and the grooves are preferably arranged along the sewage flow direction. The inner wall surface of the tank body is a rough surface, the rough surface is a matte surface processed by a sand blasting process or an electric spark, and the roughness range of the rough surface is 0.8-6.3.

Claims

1. The gas-liquid mixer is characterized in that: the spraying tank is provided with a tank body (1), a liquid inlet hole (4) and an inlet taper hole (7) are sequentially arranged in the center of one end of the tank body from outside to inside, the narrow end of the inlet taper hole is connected with the liquid inlet hole, a horn hole (13), a spraying hole (2) and an outlet taper hole (14) are sequentially arranged in the other end of the tank body from inside to outside, the narrow end of the horn hole is connected with one end of the spraying hole, and the other end of the spraying hole is connected with the narrow end of the outlet taper hole; the aperture of the ejection hole is larger than that of the liquid inlet hole, and the axial lead (15) of the ejection hole is superposed with the axial lead (5) of the liquid inlet hole; an annular gap (10) is arranged between the edge of the wide end of the horn hole and the inner wall (8) of the tank body; an air passage (11) surrounding the horn hole or the jet hole is arranged on the tank wall of the tank body, the air passage is communicated with the gap, and an air inlet hole (12) communicated with the air passage is arranged on the tank wall of the tank body.

2. A gas-liquid mixer according to claim 1, wherein: the wide end of the inlet taper hole is connected with the inner wall of the tank body.

3. A gas-liquid mixer according to claim 1, wherein: a plurality of gaps (9) are uniformly distributed on the upper edge of the outer opening edge of the horn hole along the circumference.

4. A gas-liquid mixer according to claim 1, wherein: the diameter of the wide mouth end of the horn hole is larger than that of the wide mouth end of the outlet taper hole.

5. A gas-liquid mixer according to claim 1, wherein: the angle of the cone angle (6) of the inlet cone hole is larger than the angle of the cone angle (3) of the outlet cone hole.

6. A gas-liquid mixer according to claim 1, wherein: the inner wall surface of the tank body is provided with evenly distributed grooves along the circumference.

7. A gas-liquid mixer according to claim 1, wherein: the inner wall surface of the tank body is rough.