CN213865616U

CN213865616U - Anti-suck-back device of aeration oxygen system

Info

Publication number: CN213865616U
Application number: CN202022830496.9U
Authority: CN
Inventors: 林茂寒; 吴德明; 郑欢; 周悬旗; 雷斯琦
Original assignee: Wuhan Sinoeco Technology Co ltd
Current assignee: Wuhan Sinoeco Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-08-03
Anticipated expiration: 2030-11-30

Abstract

The utility model provides a suck-back prevention device of an aeration oxygen-introducing system, which comprises an air inlet pipe, a reducing pipe, a spherical non-return body, a buffer cylinder and an interception piece; the reducing pipe is in a round table shape, the spherical non-return body is arranged in the reducing pipe, the diameter of the spherical non-return body is larger than the diameter of the small end of the reducing pipe and smaller than the diameter of the large end of the reducing pipe, the buffer cylinder is provided with an air inlet and an air outlet, the air inlet is communicated with the large end of the reducing pipe, the interception piece is arranged between the air inlet and the large end of the reducing pipe and used for preventing the spherical non-return body from entering the air inlet, when air enters, the air pushes the spherical non-return body away to enter the buffer cylinder, and the interception piece prevents the spherical non-return body from; when the gas is stopped, the spherical non-return body can block the reducing pipe, so that the liquid can not enter the gas inlet pipe; and rivers can get into the cushion cylinder at first, flow along the inner wall of cushion cylinder, effectively avoid the situation that the too fast direct intake pipe of rushing into of rivers speed, avoided rivers suck-back harm oxygenation equipment, possess fine practicality.

Description

Anti-suck-back device of aeration oxygen system

Technical Field

The utility model relates to an aeration facility technical field especially relates to an aeration leads to suck-back device that prevents of oxygen system.

Background

The aeration pipe is an aeration facility, also called compressed air aeration, and the principle is that air is conveyed to an aeration device arranged at the bottom of a pool through an air conveying pipeline by a blower and is dispersed and escaped in the form of bubbles, and oxygen is dissolved into water at an air-liquid interface. In the conventional oxygenation aeration system, a phenomenon seriously influencing an aeration device generally exists, namely when aeration is finished, oxygen is usually stopped to be introduced into an aeration pipe, and then the oxygen introducing pipe generates a suck-back phenomenon, so that the damage of the aeration device is caused and the normal service life of the aeration device is influenced.

At present, the most adopted solutions are: the problem that the equipment is damaged due to suck-back of an oxygen increasing pipeline after the oxygen increasing equipment is stopped is avoided by installing the oxygen increasing equipment at a position higher than the liquid level in the water treatment system, and the solution not only increases the difficulty of equipment installation, but also consumes time and labor and affects the progress of a project; also someone prevents that oxygenation pipeline from producing rivers suck-back phenomenon through adding some non return tools more, but generally because reasons such as the back and forth movement of non return tool, leads to the case to produce the skew, and sealed effect is poor, and general non return tool maintenance dismantles etc. moreover and is harder, has influenced the use.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for an anti-suck-back device for an aeration oxygen-introducing system, which is used to solve the problem of suck-back phenomenon of the oxygen-introducing pipe when the aeration is finished.

The utility model provides a back suction prevention device of aeration oxygen system, include:

an air inlet pipe;

the reducing pipe is in a circular truncated cone shape, and the small end of the reducing pipe is communicated with the air inlet pipe;

the diameter of the spherical non-return body is larger than the diameter of the small end of the reducing pipe and smaller than the diameter of the large end of the reducing pipe;

the buffer cylinder is provided with an air inlet and an air outlet, and the air inlet is communicated with the large end of the reducing pipe;

and the interception piece is arranged between the air inlet and the large end of the reducing pipe and used for preventing the spherical non-return body from entering the air inlet.

Optionally, the blocking member includes a connecting pipe and a blocking block, the connecting pipe is communicated with the air inlet and the reducing pipe, and the blocking block is fixed on the inner surface of the connecting pipe.

Optionally, the number of the intercepting blocks is multiple, and the intercepting blocks are arranged at equal angular intervals.

Optionally, the buffer cylinder is cylindrical, a plurality of air outlets are formed in the circumferential surface of the buffer cylinder, and the air outlets are sequentially arranged at equal intervals along the axis direction of the buffer cylinder.

Optionally, both ends of the cushion cylinder in the axial direction are spherical surfaces.

Optionally, a discharge port is further formed in the buffer cylinder, the gas outlet is formed in one side of the buffer cylinder, and the discharge port and the gas inlet are formed in the other side of the buffer cylinder.

The utility model has the advantages that:

the utility model provides a suck-back prevention device of an aeration oxygen-introducing system, wherein an air inlet pipe is connected with a buffer cylinder through a reducing pipe; when gas enters, the reducing pipe is in a circular truncated cone shape, the spherical check body is arranged in the reducing pipe, the diameter of the spherical check body is smaller than that of the large end of the reducing pipe, the gas pushes the spherical check body away to enter the buffer cylinder, and the interception piece is arranged between the gas inlet and the large end of the reducing pipe to prevent the spherical check body from entering the buffer cylinder; when the air is stopped to be introduced, the air pressure is reduced, and the spherical non-return body blocks the small end of the reducing pipe to prevent the liquid from being sucked back into the air inlet pipe because the diameter of the spherical non-return body is larger than that of the small end of the reducing pipe; and rivers can at first get into the cushion cylinder when taking place to suck backwards, flow along the inner wall of cushion cylinder, have prolonged the route of rivers, make spherical non return body have more sufficient time shutoff reducing pipe, effectively avoid the situation that the too fast direct impact of rivers speed goes into the intake pipe, avoided rivers suck backwards harm oxygenation equipment, possess fine practicality.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a perspective view of a suck-back prevention device of an aeration oxygen supply system according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of a suck-back prevention device of an aeration oxygen-introducing system according to a first embodiment of the present invention;

fig. 3 is a perspective view of the blocking member according to the first embodiment of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

Example one

Referring to fig. 1 to 3, an anti-suck-back device of an aeration oxygen system disclosed in the embodiment of the present invention includes an air inlet pipe 1, a reducing pipe 2, a spherical non-return body 3, an intercepting member 4 and a buffer cylinder 5. Wherein the air inlet pipe 1, the reducing pipe 2, the spherical check body 3 and the interception piece 4 are mainly used for preventing suck-back, and the buffer cylinder 5 is mainly used for buffering during aeration and water flow suck-back.

Specifically, the intake pipe 1, the reducing pipe 2, the blocking member 4, and the buffer cylinder 5 of the present embodiment are connected in sequence, and the spherical check body 3 is disposed in the reducing pipe 2. The reducing pipe 2 of this embodiment is a circular truncated cone-shaped pipe body, that is, one end of the reducing pipe 2 has a smaller diameter, and the other end has a larger diameter. For the end with the smaller diameter, this embodiment is referred to as the small end of the reducer 2, and for the end with the larger diameter, this embodiment is referred to as the large end of the reducer 2. Then the small end of the reducing pipe 2 is communicated with the air inlet pipe 1; the interception piece 4 is arranged between an air inlet formed in the buffer cylinder 5 and the large end of the reducing pipe 2, and the large end of the reducing pipe 2 is communicated with the air inlet formed in the buffer cylinder 5 through the interception piece 4. The diameter of the spherical check body 3 in the embodiment is larger than the diameter of the small end of the reducing pipe 2 and smaller than the diameter of the large end of the reducing pipe 2; therefore, the ball check body 3 can be installed from the large end of the reducing pipe 2, and the ball check body 3 is limited in the reducing pipe 2 by matching the interception function of the interception piece 4, so that the ball check body 3 is prevented from entering the air inlet.

It should be noted that the intercepting member 4 of the present embodiment includes a connecting pipe 41 and a intercepting block 42, and the diameter of the connecting pipe 41 is the same as the diameter of the air inlet opened in the damping cylinder 5 and the large end of the reducing pipe 2. And the intercepting blocks 42 are four, and the intercepting blocks 42 are arranged at equal angular intervals on the four intercepting blocks 42 and fixed on the inner surface of the connecting pipe 41. The distance between each two opposite intercepting pieces 42 is smaller than the diameter of the ball check 3, thereby preventing the ball check 3 from passing through the intercepting pieces 42. It will be readily understood that the intercepting block 42 functions to prevent the ball check 3 from passing therethrough while allowing the gas to pass therethrough, and thus the intercepting block 42 may be provided in various structures, such as a mesh structure, according to actual needs.

Further, the cushion cylinder 5 of this embodiment is cylindrical, and both ends of the cushion cylinder 5 in the axial direction are spherical surfaces. The circumferential surface of the cushion cylinder 5 is provided with an air inlet 51, a discharge port 52 and four air outlets 53, and the four air outlets 53 are sequentially arranged at equal intervals along the axial direction of the cushion cylinder 5. It is easily understood that the air outlet 53 is provided at one side of the cushion cylinder 5, and the discharge port 52 and the air inlet 51 are both provided at the other side of the cushion cylinder 5. It will be readily understood that the number of the discharge ports 52 and the air outlets 53 may be set according to actual needs. And the discharge opening 52 may be blocked using a sealing member such as a piston or a sealing cap when not in use.

Furthermore, the intake pipe 1, the reducing pipe 2, the interceptor, and the buffer cylinder 5 of this embodiment are made of polyvinyl chloride (PVC). According to actual requirements, the air inlet pipe 1, the reducing pipe 2, the interceptor and the buffer cylinder 5 can also be made of polypropylene (PP) or Polyethylene (PE). The plastic is easy to be molded by opening the die, and the production cost is low. The material of the spherical non-return body 3 is one of rubber, silica gel or glass, the spherical non-return body 3 is a solid sphere, and the density of the spherical non-return body is more than 1.2g/cm³. So that the reducing pipe 2 can be smoothly blocked and not be washed away by water when suck-back occurs.

The working principle of the anti-suck-back device limit of the aeration oxygen system of the embodiment is as follows:

when the oxygen increasing equipment is started, the generated oxygen enters the air inlet pipe 1, and the spherical check body 3 rolls in the reducing pipe 2 under the action of the oxygen pressure and the interception of the interception block 42; and when the oxygen increasing equipment stopped operating, the spherical non return body 3 fell to the lower extreme of reducing pipe 2 under the action of self gravity to block up reducing pipe 2, and when rivers suck-back phenomenon, spherical non return body 3 can be inseparabler and block up reducing pipe 2, can effectively avoid rivers suck-back to get into in the oxygen increasing equipment. When high-pressure and high-heat oxygen enters the buffer cylinder 5 through the air inlet 51, the pressure of the gas entering the buffer cylinder 5 is reduced due to the change of the volume of the container, and the stress on the inner wall of the buffer cylinder 5 is also reduced, so that the heat generated by the friction between the gas and the inner wall of the buffer cylinder 5 can be reduced, and the service lives of the buffer cylinder 5 and a subsequent ventilation pipeline are further prolonged; the oxygen after pressure reduction and stabilization is respectively transmitted to different oxygen demand units through four air outlets 53; in addition, the buffer cylinder 5 can also be used as a buffer unit when water flow is sucked backwards, so that pressure impact in the process can be reduced; and the discharge port 52 may discharge the gas or liquid remaining in the surge tank 5.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. The utility model provides an aeration leads to anti-suck-back device of oxygen system which characterized in that includes:

an air inlet pipe;

the spherical check body is arranged in the reducing pipe, and the diameter of the spherical check body is larger than the diameter of the small end of the reducing pipe and smaller than the diameter of the large end of the reducing pipe;

the intercepting piece is arranged between the air inlet and the large end of the reducing pipe and used for preventing the spherical check body from entering the air inlet.

2. An anti-suck back device of an aeration oxygen aeration system according to claim 1, wherein the intercepting member comprises a connecting pipe and an intercepting block, the connecting pipe communicates the air inlet and the reducing pipe, and the intercepting block is fixed on the inner surface of the connecting pipe.

3. An anti-suck-back device of an aeration oxygen-introducing system according to claim 2, wherein the intercepting blocks are provided in plurality, and the intercepting blocks are arranged at equal angular intervals.

4. An anti-suck-back device of an aeration oxygen-introducing system according to claim 1, wherein the buffer cylinder is cylindrical, a plurality of air outlets are formed on the circumferential surface of the buffer cylinder, and the air outlets are sequentially arranged at equal intervals along the axial direction of the buffer cylinder.

5. An anti-suck back device of an aeration oxygen system according to claim 4, wherein both ends of the buffer cylinder in the axial direction are spherical.

6. An anti-suck-back device of an aeration oxygen-introducing system according to claim 1 or 4, wherein the buffer cylinder is further provided with a discharge port, the air outlet is arranged at one side of the buffer cylinder, and the discharge port and the air inlet are both arranged at the other side of the buffer cylinder.