Tubular aerator with protection structure

Abstract

The utility model relates to the technical field of sewage treatment equipment, in particular to a tubular aerator with a protection structure, which comprises an air injection pipe, one end of the air injection pipe is fixedly connected with a connector, the inner wall of the air injection pipe is connected with an aeration pipe in a sliding manner, and the outer wall of the air injection pipe is provided with the protection mechanism. When the air injection pipe is pressurized for air injection, the high pressure enables the aeration pipe to extend out of the air injection pipe for aeration, when the aeration pipe stops aeration, the pressure in the air injection pipe is recovered, and at the moment, the tension of the spring pushes the sliding buckle to drive the sliding rod to move together, so that the aeration pipe connected with the sliding rod retracts together, and the aeration pipe retracts into the air injection pipe. Therefore, the aeration pipe is prevented from being damaged when not used in a mode of being convenient to correspond to the aeration pipe, and when the aeration pipe retracts into the gas injection pipe, the end face of the pipe wall of the gas injection pipe can scrape a biological membrane formed on the outer wall of the aeration pipe, so that the problem that the air permeability of the aerator is influenced is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment equipment technical field, concretely is a tubular aerator with protection structure. BACKGROUND

[0002] Aeration is an extremely important process in the aerobic biological treatment system of sewage, and the main purpose of aeration is to provide oxygen required for the metabolism of microorganisms and to play a stirring and mixing role to enable microorganisms to fully contact with dissolved oxygen and organic matter suspended in the water body, thereby promoting the microbial degradation of organic matter. The dissolved gas or volatile substance in the water body can be blown into the atmosphere, and a tubular aerator is usually used. During aeration, the pressure air enters the air guide groove through the air supply pipe from the air distribution branch pipe, forming an annular air chamber between the aeration membrane tube and the support body, making the aeration membrane tube swell, and the air passes through the expandable micropores on the membrane tube to aerate the water body, generating tiny air bubbles, increasing the gas-liquid contact area, and improving the oxygen transfer efficiency. When the air supply is stopped, the membrane tube elastically contracts and clings to the support body, the micropores also close with the elastic contraction and shrinkage, preventing the water body from flowing back into the air groove and preventing sewage from flowing back.

[0003] The prior art such as publication number CN209602219U provides a tubular aerator, which includes a branch pipe and an aerator. The branch pipe is regularly or irregularly connected with several aerators. The aerator includes an aeration membrane, an aeration lining pipe, a clamp, a connecting piece, and a support. The aeration lining pipe is connected with the branch pipe through the connecting piece. The aeration lining pipe is covered with the aeration membrane. The two ends of the aeration membrane are detachably fixed on the aeration lining pipe through the clamp. The aeration lining pipe is provided with several air holes. The aeration membrane is provided with several eyelets. At least one support is connected to the aeration lining pipe. The utility model provides a tubular aerator with simple structure, large aeration area, high oxygen transfer efficiency, no backflow, non-clogging eyelets, and long service life.

[0004] In the sewage treatment environment, microorganisms multiply in large numbers. Some microorganisms will adhere to the surface of the tubular aerator and form a biofilm. Although the biofilm has a certain positive effect on sewage treatment, if the biofilm is too thick, it will affect the air permeability of the aerator. Moreover, some microorganisms may secrete acidic or alkaline substances, which will corrode the material of the aerator, thereby damaging the normal structure and function of the aerator. In view of this, we propose a tubular aerator with a protection structure. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a tubular aerator with a protection structure, which solves the problem of the air permeability of the aerator being affected by the large number of microorganisms in the sewage treatment environment, the adhesion of some microorganisms to the surface of the tubular aerator, and the formation of a biofilm.

[0006] In order to achieve the above object, the utility model provides the following technical scheme:

[0007] A tubular aerator with a protection structure, including injection pipe, one end of injection pipe is fixedly connected with connector, the inner wall of injection pipe is slidably connected with aeration pipe, the outer wall of injection pipe is provided with protection mechanism,

[0008] The protection mechanism includes support rod, the inner wall of support rod is slidably connected with slide buckle, the outer wall of slide buckle is fixedly connected with slide rod, and the end of slide rod away from the connector is slidably connected with the support rod, and the spring is movably sleeved on the position between the end of the support rod away from the connector and the slide buckle, and the end of the slide rod away from the slide buckle is fixedly connected with the end surface of the aeration pipe through the connecting rod.

[0009] Preferably, the number of support rods is three, and they are arranged in a ring array.

[0010] Preferably, the three connecting rods are fixedly connected with protective covers at the positions of the aeration pipe, and square holes for passing bubbles are formed in the protective covers.

[0011] Preferably, the length of the protective cover is consistent with the length of the aeration pipe, and the positions corresponding to the slide rods, and the inner diameter of the protective cover is greater than the outer diameter of the injection pipe.

[0012] Preferably, the aeration pipe is composed of a support pipe, an aeration membrane, an injection head, and an air inlet groove piston ring, the aeration membrane is sleeved on the outer wall of the support pipe, a gap is left between the inner wall of the aeration membrane and the outer wall of the support pipe, the injection head is fixedly connected to one end of the support pipe and the aeration membrane inside the injection pipe, and the air inlet groove is formed in the injection head to communicate the gap between the aeration membrane and the support pipe with the injection pipe.

[0013] Preferably, the outer wall of the injection head is fixedly connected with a piston ring, and the piston ring is slidably connected with the injection pipe.

[0014] Preferably, a magnetic attraction groove is formed in the inner wall of the injection pipe near the connector, and a magnetic ring is fixedly connected to the position of the injection head corresponding to the magnetic attraction groove.

[0015] By the above technical scheme, the utility model provides a tubular aerator with a protection structure. At least the following beneficial effects are achieved:

[0016] The utility model discloses a protection mechanism is set up on the outer wall of the injection pipe, when the injection pipe is pressurized to inject gas, the high pressure makes the aeration pipe to stretch out from the injection pipe to aerate, when the aeration pipe stops aeration, the pressure in the injection pipe restores, at this moment, the tension of spring will push the slide buckle to move the slide rod together, makes the aeration pipe that is connected with the slide rod together and contracts, through the way that the aeration pipe contracts in the injection pipe, the mode of corresponding aeration pipe is convenient, avoids the damage when the aeration pipe is not used, and when the aeration pipe contracts in the injection pipe, the end face of the injection pipe wall will scrape the biofilm formed on the outer wall of the aeration pipe, avoids the problem of affecting the gas permeability of aerator.

[0017] Two, the utility model discloses a protection cover is set up on the position of the connecting rod corresponding aeration pipe, so that the protection cover can move together with the aeration pipe, to provide protection for the aeration pipe when the aeration pipe stretches out. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the utility model and form part of the present application:

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the section view of the injection pipe and aeration pipe in the utility model;

[0021] Figure 3 It is the structure schematic diagram of the protection mechanism in the utility model;

[0022] Figure 4 It is the section view of the aeration pipe in the utility model.

[0023] In the drawing: 1, injection pipe;11, connecting head;12, magnetic attraction groove;13, magnetic ring;2, aeration pipe;21, support pipe;22, aeration membrane;23, injection head;24, air inlet groove;25, piston ring;3, protection mechanism;31, support rod;32, slide buckle;33, slide rod;34, spring;35, connecting rod;36, protection cover. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] A tubular aerator with a protection structure, like Figure 1 - Figure 4As shown, including injection pipe 1, one end of injection pipe 1 is fixedly connected with connector 11, the inner wall of injection pipe 1 is slidably connected with aeration pipe 2, the outer wall of injection pipe 1 is provided with protection mechanism 3, protection mechanism 3 includes support rod 31, support rod 31 is fixedly connected at the position close to connector 11 on the outer wall of injection pipe 1, the inner wall of support rod 31 is slidably connected with slide buckle 32, slide buckle 32 is fixedly connected with slide rod 33, and slide rod 33 penetrates one end of support rod 31 away from connector 11 and is slidably connected, spring 34 is movably sleeved at the position between the end of support rod 31 away from connector 11 and slide buckle 32 on the outer wall of slide rod 33, one end of slide rod 33 away from slide buckle 32 is fixedly connected with the end surface of aeration pipe 2 through connecting rod 35, the number of support rod 31 is three, and they are arranged in annular array, three connecting rods 35 are fixedly connected with protective cover 36 at the position of aeration pipe 2, square holes for passing bubbles are formed in protective cover 36, the length of protective cover 36 is consistent with the length of aeration pipe 2, and the positions corresponding to slide rod 33, the inner diameter of protective cover 36 is greater than the outer diameter of injection pipe 1.

[0026] In the embodiment, when pressurizing injection pipe 1 to inject air, high pressure makes aeration pipe 2 extend from injection pipe 1 to aerate, when aeration pipe 2 stops aeration, the pressure in injection pipe 1 restores, at this time, the tension of spring 34 pushes slide buckle 32 to move slide rod 33 together, so that aeration pipe 2 connected with slide rod 33 retracts together, in the mode that aeration pipe 2 retracts into injection pipe 1, the mode of aeration pipe 2 is facilitated, and when aeration pipe 2 retracts into injection pipe 1, the end surface of injection pipe 1 wall scrapes the biofilm formed on the outer wall of aeration pipe 2, avoiding affecting the air permeability of aerator, and by arranging protective cover 36 at the position of connecting rod 35 corresponding to aeration pipe 2, protective cover 36 can move together with aeration pipe 2, to facilitate providing protection for aeration pipe 2 when aeration pipe 2 extends.

[0027] As Figure 2 , Figure 4As shown, preferably, the aeration pipe 2 is composed of a support pipe 21, an aeration membrane 22, a gas injection head 23, a gas inlet groove 24 and a piston ring 25, the aeration membrane 22 is sleeved on the outer wall of the support pipe 21, a gap is left between the inner wall of the aeration membrane 22 and the outer wall of the support pipe 21, the gas injection head 23 is fixedly connected to one end of the support pipe 21 inside the gas injection pipe 1, the gas inlet groove 24 is arranged on the gas injection head 23 and is used for connecting the gap between the aeration membrane 22 and the support pipe 21 with the gas injection pipe 1, the hydrogen gas in the gas injection pipe 1 can enter the gap between the aeration membrane 22 and the support pipe 21 through the gas inlet groove 24, so that an annular air channel is formed between the aeration membrane 22 and the support pipe 21 for aeration, and the outer wall of the gas injection head 23 is fixedly connected with the piston ring 25, and the piston ring 25 is in sliding connection with the gas injection pipe 1, so that the air tightness between the gas injection pipe 1 and the aeration pipe 2 is increased.

[0028] As shown in Figure 2 , Figure 4 , preferably, a magnetic attraction groove 12 is arranged on one end of the inner wall of the gas injection pipe 1 close to the connecting head 11, and a magnetic ring 13 is fixedly connected to the position corresponding to the magnetic attraction groove 12 of the gas injection head 23, when the aeration pipe 2 is retracted into the gas injection pipe 1, the magnetic attraction groove 12 and the magnetic ring 13 are close to each other and are attracted to each other under the action of magnetic attraction, so that the aeration pipe 2 is fixed, thereby avoiding the case that the tension of the spring 34 cannot completely push the aeration pipe 2 into the gas injection pipe 1.

[0029] When the gas injection pipe 1 is pressurized for gas injection, the high pressure makes the aeration pipe 2 extend from the gas injection pipe 1 for aeration, when the aeration pipe 2 stops aeration, the pressure in the gas injection pipe 1 is restored, at this time, the tension of the spring 34 pushes the sliding buckle 32 to move together with the sliding rod 33, so that the aeration pipe 2 connected with the sliding rod 33 is retracted together, in this way, the aeration pipe 2 is retracted into the gas injection pipe 1, so that the aeration pipe 2 is fixed, thereby avoiding damage to the aeration pipe 2 when it is not used, and when the aeration pipe 2 is retracted into the gas injection pipe 1, the end surface of the wall of the gas injection pipe 1 scrapes off the biofilm formed on the outer wall of the aeration pipe 2, thereby avoiding the problem of affecting the air permeability of the aerator, and the protective cover 36 is arranged at the position corresponding to the aeration pipe 2 of the connecting rod 35, so that the protective cover 36 can move together with the aeration pipe 2, thereby providing protection for the aeration pipe 2 when the aeration pipe 2 extends, and when the aeration pipe 2 is retracted into the gas injection pipe 1, the magnetic attraction groove 12 and the magnetic ring 13 are close to each other and are attracted to each other under the action of magnetic attraction, so that the aeration pipe 2 is fixed.

[0030] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A tubular aerator with a protective structure, comprising a gas injection pipe (1), characterized in that: One end of the injection pipe (1) is fixedly connected with a connector (11), the inner wall of the injection pipe (1) is slidably connected with an aeration pipe (2), and the outer wall of the injection pipe (1) is provided with a protection mechanism (3). The protection mechanism (3) comprises a supporting rod (31) fixedly connected to the outer wall of the injection pipe (1) near the connector (11), a sliding buckle (32) slidably connected to the inner wall of the supporting rod (31), a sliding rod (33) fixedly connected to the sliding buckle (32), and a spring (34) movably sleeved on the outer wall of the sliding rod (33) between the end of the supporting rod (31) away from the connector (11) and the sliding buckle (32), and the end of the sliding rod (33) away from the sliding buckle (32) is fixedly connected to the end face of the aeration pipe (2) through a connecting rod (35).

2. A tube aerator with a protective structure according to claim 1, characterized in that: The number of the supporting rods (31) is three, and they are arranged in a ring array.

3. The tube aerator with a protective structure according to claim 1, characterized in that: Three connecting rods (35) are fixedly connected with a protective cover (36) at the position of the aeration pipe (2), and the protective cover (36) is provided with a square hole for passing bubbles.

4. A tube aerator with a protective structure according to claim 3, characterized in that: The length of the protective cover (36) is consistent with the length of the aeration pipe (2), and the position of the protective cover (36) on the sliding rod (33) corresponds, and the inner diameter of the protective cover (36) is greater than the outer diameter of the injection pipe (1).

5. The tube aerator with a protective structure according to claim 1, characterized in that: The aeration pipe (2) is composed of a supporting pipe (21), an aeration membrane (22), an injection head (23), an air inlet groove (24) and a piston ring (25), the aeration membrane (22) is sleeved on the outer wall of the supporting pipe (21), the gap between the inner wall of the aeration membrane (22) and the outer wall of the supporting pipe (21) is left, the injection head (23) is fixedly connected to the end of the supporting pipe (21) and the aeration membrane (22) inside the injection pipe (1), and the air inlet groove (24) is formed in the injection head (23) to communicate the gap between the aeration membrane (22) and the supporting pipe (21) with the injection pipe (1).

6. A tube aerator with a protective structure according to claim 5, characterized in that: The outer wall of the injection head (23) is fixedly connected with a piston ring (25), and the piston ring (25) is slidably connected with the injection pipe (1).

7. A tube aerator with a protective structure according to claim 6, characterized in that: The inner wall of the injection pipe (1) near the connector (11) is provided with a magnetic attraction groove (12), and the injection head (23) is fixedly connected with a magnetic ring (13) corresponding to the position of the magnetic attraction groove (12).

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