CN217473192U

CN217473192U - Pressure dissolved air tank

Info

Publication number: CN217473192U
Application number: CN202122434800.2U
Authority: CN
Inventors: 李高辉; 刘鹏; 吴恒斌; 姚瀚威
Original assignee: Dongguan Daohui Environmental Protection Technology Co ltd
Current assignee: Dongguan Daohui Environmental Protection Technology Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-09-23
Anticipated expiration: 2031-10-09

Abstract

The utility model discloses a pressure dissolves gas pitcher, include water dart, dissolved air pump, central outlet pipe and dissolve the gas pitcher, water dart, dissolved air pump reach it loops through the pipe connection to dissolve the gas pitcher, just dissolve the rivers direction that the gas pitcher was intake the end with it is tangent to dissolve the inner wall of gas pitcher, this pressure dissolves the gas pitcher and dissolves gas effectually, and the condition of packing jam can not appear.

Description

Pressure dissolved air tank

Technical Field

The utility model relates to a pressurization dissolves gas air supporting technical field, especially relates to a gas pitcher is dissolved to pressure.

Background

In a pressurized dissolved air flotation system, when air is dissolved in water, molecules in the air need to be dispersed from a gas phase main body to a gas phase side (gas film layer) of a gas-liquid two-phase interface, then dispersed from the gas phase side (gas film layer) of the gas-liquid two-phase interface to a liquid phase side (liquid film layer) of the gas-liquid two-phase interface, and then dispersed from the liquid phase side (liquid film layer) of the gas-liquid two-phase interface to a liquid phase main body. The mass transfer rate of air in the gas film layer and the liquid film layer is the main factor influencing the pressurizing and gas dissolving efficiency, and in order to improve the mass transfer rate of the gas-liquid double film layers, the turbulence intensity (including turbulence, stirring and the like) of the interface is generally increased.

The conventional pressurized dissolved air tank is filled with various fillers (Raschig rings, pall rings and the like), and then water flows through the surfaces of the fillers from top to bottom to form a turbulent gas-liquid two-phase interface, so that the dissolved air tank efficiency is improved. When the dissolved air tank is applied to the treatment of waste water containing large particles and fibrous pollutants, such as paper pulp waste water, livestock and poultry breeding and processing waste water, the blockage of the filling material of the dissolved air tank is inevitable, and the stable operation of a pressurized dissolved air floatation system is directly influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a pressure dissolved air tank which has good air dissolving effect and can not cause the condition of filler blockage.

The purpose of the utility model is realized by adopting the following technical scheme:

a pressure dissolved air tank comprises a water ejector, an dissolved air pump, a central water outlet pipe and an dissolved air tank, wherein the water ejector, the dissolved air pump and the dissolved air tank are sequentially connected through pipelines, and the water flow direction of the water inlet end of the dissolved air tank is tangent to the inner wall of the dissolved air tank;

the central water outlet pipe is arranged at one end of the central water outlet pipe, an inlet is formed in the dissolved air tank, the other end of the central water outlet pipe penetrates out of the dissolved air tank and is connected with an external collecting device, and a flow channel for water flow to pass through is formed between the central water outlet pipe and the inner wall of the dissolved air tank.

Further, the inlet is located dissolve the upper portion of gas pitcher, just the center outlet pipe other end is worn out dissolve the diapire of gas pitcher and be connected with external collection device, dissolve gas pitcher and pipeline connection department and be located dissolve the lower part of gas pitcher.

Further, this application still includes the return line, return line one end with the play water end of dissolved air pump is connected, the other end with the end connection of intaking of water dart.

Further, a pressure gauge is installed on the dissolved air tank.

Further, an exhaust valve is installed on the dissolved air tank.

Compared with the prior art, the beneficial effects of the utility model reside in that:

this application encloses into the runner through utilizing to dissolve gas pitcher and central outlet pipe, and it is tangent with the inner wall that dissolves the gas pitcher to intake the rivers direction of end with the gas pitcher, thereby make the hydroenergy that gets into to dissolve in the gas pitcher can be flowing along the runner spiral, with the mode that flows through the whirl, strengthen the turbulent intensity of rivers, reinforce mass transfer rate, the air is with micro-bubble form and water contact, micro-bubble's specific surface area is big, for the gas-liquid double-phase provides a large amount of mass transfer interfaces, the air can high-efficiently dissolve into the aquatic, dissolve gas effectually in order to strengthen, and need not to utilize the filler, the phenomenon of filler emergence jam has effectively been avoided.

Drawings

Fig. 1 is a schematic structural diagram of a pressure dissolved air tank of the present invention;

fig. 2 is a schematic diagram of the internal structure of the pressure dissolved air tank of the present invention;

the figure is as follows: 1. a water ejector; 2. a dissolved air pump; 3. a water inlet end of the dissolved air tank; 4. a dissolved air tank; 5. a central water outlet pipe; 6. a pressure gauge; 7. and (4) exhausting the valve.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1 and fig. 2, the pressure dissolved air tank of the present invention comprises a water ejector 1, a dissolved air pump 2, a central water outlet pipe 5 and a dissolved air tank 4, wherein the water ejector 1, the dissolved air pump 2 and the dissolved air tank 4 are sequentially connected through a pipeline, and the water flow direction of the water inlet end 3 of the dissolved air tank is tangential to the inner wall of the dissolved air tank 4;

the central water outlet pipe 5 has one end arranged in the dissolved air tank 4 and formed with an inlet, the other end penetrates out of the dissolved air tank 4 and is connected with an external collecting device, and a flow passage for water flow to pass through is formed between the central water outlet pipe 5 and the inner wall of the dissolved air tank 4.

During operation, air and water get into among the water ejector 1, through mixing through the pipeline get into dissolve in the air pump 2 in dissolve air pump 2 pressurization and by dissolve in the air pump 2 multistage impeller cutting be the microbubble after, in order to get into dissolve in the gas pitcher 4 with the inner wall tangential direction who dissolves the gas pitcher 4, rivers and microbubble flow along dissolving the runner that gas pitcher 4 and central outlet pipe 5 enclose, in order to aggravate the turbulent intensity of rivers through the whirl flow, reinforce mass transfer rate, the air is with the microbubble form and water contact, the specific surface area of microbubble is big, for the gas-liquid two-phase provides a large amount of mass transfer interfaces, the aquatic is dissolved to the air high efficiency, then discharge after getting into central outlet pipe 5 through the import and dissolving gas pitcher 4.

This application encloses into the runner through utilizing to dissolve gas pitcher 4 and central outlet pipe 5, and it is tangent with the inner wall that dissolves gas pitcher 4 to intake the rivers direction of end with the gas pitcher 4, thereby make the water that gets into and dissolve in the gas pitcher 4 can flow along the runner spiral, in order to pass through the mode that the whirl flows, strengthen the turbulent intensity of rivers, strengthen mass transfer rate, the air is with micro bubble form and water contact, micro bubble's specific surface area is big, for the gas-liquid two-phase provides a large amount of mass transfer interfaces, the air can high-efficiently dissolve into the aquatic, dissolve gas effectually in order to the reinforcing, and need not to utilize the filler, the phenomenon of filler emergence jam has effectively been avoided.

Preferably, the inlet is located at the upper part of the dissolved air tank 4, the other end of the central water outlet pipe 5 penetrates through the bottom wall of the dissolved air tank 4 to be connected with an external collecting device, and the joint of the dissolved air tank 4 and the pipeline is located at the lower part of the dissolved air tank 4.

By adopting the arrangement mode, after water enters the dissolved air tank 4, water flow and micro bubbles can flow upwards along the flow channel spiral, so that the water flow disorder strength is intensified, and the mass transfer rate is intensified.

Simultaneously for the reinforcing dissolves the gas effect, this application still includes the backflow pipeline, backflow pipeline one end is connected with the play water end that dissolves air pump 2, the other end is connected with the end of intaking of water dart 1, the rivers that have the air from dissolving 2 partial mixings that flow out of air pump will directly flow into through the pipeline and dissolve gas pitcher 4, and the remainder will directly get into water dart 1 once more through the backflow pipeline, mix it once more with the air by water dart 1, thereby increase the gas proportion of aquatic, thereby improve the gas efficiency that dissolves of rivers in the gas pitcher 4.

Simultaneously for the person of facilitating the use observes and dissolves 4 internal pressures of gas pitcher, this application is installed manometer 6 on dissolving gas pitcher 4, and the user can directly learn through manometer 6 and dissolve 4 internal pressures of gas pitcher.

Simultaneously for avoiding dissolving 4 internal pressures of gas pitcher too high, lead to dissolving 4 damages of gas pitcher, this application is installed discharge valve 7 on dissolving gas pitcher 4 to can in time discharge dissolve gas pitcher 4 interior gas.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

Claims

1. A pressure dissolved air tank, characterized by: the device comprises a water ejector (1), a dissolved air pump (2), a central water outlet pipe (5) and a dissolved air tank (4), wherein the water ejector (1), the dissolved air pump (2) and the dissolved air tank (4) are sequentially connected through a pipeline, and the water flow direction of a water inlet end (3) of the dissolved air tank is tangential to the inner wall of the dissolved air tank (4);

central outlet pipe (5) one end sets up dissolve in gas pitcher (4) and be formed with the import, and the other end is worn out dissolve gas pitcher (4) and be connected with external collection device, central outlet pipe (5) with dissolve and form the runner that the rivers of supplying between the inner wall of gas pitcher (4) pass through.

2. A pressure dissolved air tank according to claim 1, wherein: the import is located dissolve the upper portion of gas pitcher (4), just central outlet pipe (5) other end is worn out dissolve the diapire of gas pitcher (4) and be connected with external collection device, dissolve gas pitcher (4) and pipeline connection department and be located dissolve the lower part of gas pitcher (4).

3. A pressure dissolved air tank according to claim 1, wherein: the water ejector is characterized by further comprising a return pipeline, wherein one end of the return pipeline is connected with the water outlet end of the dissolved air pump (2), and the other end of the return pipeline is connected with the water inlet end of the water ejector (1).

4. A pressure dissolved air tank according to claim 1, wherein: and a pressure gauge (6) is arranged on the dissolved air tank (4).

5. A pressure dissolved air tank according to claim 1, wherein: an exhaust valve (7) is installed on the dissolved air tank (4).