Novel tubular aerator

Abstract

The utility model relates to the technical field of aeration equipment, in particular to a novel tubular aerator, which comprises a membrane tube, a support tube for supporting the membrane tube is arranged in the membrane tube, pressure relief mechanisms are arranged at two ends of the support tube, gas is injected into an interlayer between the membrane tube and the support tube through a ring groove, so that the membrane tube is bulged, and the membrane tube and the support tube are connected through the pressure relief mechanisms. Air is aerated into a water body through the expandable micropores in the membrane tube to form tiny bubbles, so that the aim of oxygenating the water body is fulfilled, when the exhaust of the micropores in the membrane tube is influenced by blockage, the pressure increased in the air inlet tube can jack up a first sealing plug to compress a first spring, so that the first sealing plug and a first sealing ring are enabled to discharge part of air, and the air is discharged into the membrane tube. And the elastic air bag is used for conveniently releasing the pressure, so that the problem that the oxygen filling and non-return functions of the upper membrane tube of the aerator are invalid because the membrane tube is easy to tear and damage due to stress concentration of a membrane tube material and relatively low tearing strength of rubber is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to aeration equipment technical field, concretely to a novel tubular aerator. BACKGROUND

[0002] In sewage treatment process, using certain method and equipment, forcedly add air to sewage, make sewage in pool contact with air and oxygenate, and agitate liquid, accelerate the transfer of oxygen in air to liquid, prevent the subsidence of suspended body in pool, strengthen the contact of organic matter with microorganism and dissolved oxygen in pool, oxidize and decompose organic matter in sewage, the equipment for forcedly increasing oxygen in sewage is called aeration equipment, at present, the membrane type micro-porous aerator is mostly used, the membrane type micro-porous aerator mainly has tubular and disc type two, including support disc (or pipe) and aeration membrane, the aeration membrane is sleeved outside the support disc, is fixed through the mode of tightening or stainless steel clamp, then the connection of aerator and gas supply pipeline, the aeration membrane is the most core part of membrane type aerator, and the commonly used is EPDM membrane piece (three-ethylenepropylene rubber). The aeration hole has round hole and strip hole two, the more the aeration membrane is punched, the smaller the aperture is, and the more the bubbles are, and the higher the oxygenation efficiency is. The membrane type micro-porous aerator has check function, prevents sewage from flowing back to the aeration pipe when aeration stops, is realized mainly by the elastic physical attribute of aeration membrane material itself, the aeration membrane produces tensile deformation under the pressure of gas, and the aeration hole opens;When aeration stops, the aeration membrane shrinks, and the aeration hole closes.

[0003] The prior art such as the publication number CN215559260U provides a novel tubular micro-porous aerator, which comprises a gas delivery pipe and an aeration head connected to the gas delivery pipe. The aeration head includes a gasket, an aeration membrane, and a connecting pipe. The aeration membrane is arranged at one of the pipe openings of the connecting pipe, and the gasket is arranged between the aeration membrane and the connecting pipe. In the non-aeration state, the gasket blocks the aeration holes on the aeration membrane. In the aeration state, there is a gap between the gasket and the aeration membrane for gas flow. The tubular micro-porous aerator has the advantages of aeration membrane oxygenation and check function without failure.

[0004] Since aeration and check function both rely on aeration holes on the aeration membrane, the size of the aeration holes depends on the performance of the aeration membrane material. In the case of constant aeration volume, the smaller the holes, the higher the oxygenation efficiency. However, the resistance of the aeration holes increases, energy consumption increases, and the aeration membrane is easily torn, reducing its lifespan. If the aeration holes are too large, the check function may fail, the oxygenation efficiency decreases, and especially for slit aeration holes, due to stress concentration and low tear resistance of the rubber (only 20-30% of tensile strength), the aeration membrane is more likely to be damaged, causing failure of the aeration membrane in both oxygenation and check functions. Therefore, we propose a novel tubular aerator. SUMMARY

[0005] The utility model discloses a novel tubular aerator, which solves the problem of oxygenation membrane on the aerator and the failure of the non-return function due to the stress concentration of the material and the low tear strength of the rubber.

[0006] To achieve the above object, the utility model provides the following technical scheme.

[0007] A novel tubular aerator, comprising a membrane tube, a support tube arranged inside the membrane tube for supporting the membrane tube, and a pressure relief mechanism arranged at both ends of the support tube.

[0008] The pressure relief mechanism comprises a gas inlet connector fixedly connected to one end of the membrane tube, a ring groove for gas injection arranged on the inner wall of the gas inlet connector corresponding to the interlayer position between the membrane tube and the support tube, a gas inlet tube fixedly connected to the end of the gas inlet connector away from the support tube, and a pressure relief tube fixedly connected to the gas inlet connector inside the support tube.

[0009] Preferably, the inner wall of the pressure relief tube is fixedly connected with a first sealing ring, and a first sealing plug is arranged on the side of the pressure relief tube inside the first sealing ring close to the inside of the support tube.

[0010] Preferably, the inner wall of the pressure relief tube is fixedly connected with a first spring for supporting the first sealing plug.

[0011] Preferably, the inner wall of the first sealing plug is fixedly connected with a second sealing ring, a second sealing plug is arranged on the side of the inner wall of the first sealing plug close to the outside of the support tube, and the inner wall of the first sealing plug is fixedly connected with a second spring for supporting the second sealing plug.

[0012] Preferably, the end of the pressure relief tube away from the gas inlet connector is fixedly connected with an elastic air bag.

[0013] Preferably, the pressure relief mechanism further comprises an end cap fixedly connected to the end of the support tube away from the gas inlet connector, a sliding plug slidingly arranged on the inner wall of the support tube, and a third spring fixedly connected to the inner wall of the end cap corresponding to the position of the sliding plug.

[0014] Preferably, the sliding plug and the inner part of the end cap are provided with an exhaust hole for pressure relief.

[0015] The utility model provides a novel tubular aerator. At least the following beneficial effects are achieved.

[0016] The utility model discloses a through air inlet pipe connection air pump, air is pressurized by air pump, enters the annular groove in the air inlet connector from air inlet pipe, and the air is injected to the position of the interlayer between membrane pipe and support pipe through the annular groove, makes membrane pipe rise, and the air is exposed to the water body through the expandable micropore on membrane pipe, forms the small air bubble, thereby realizes the purpose of oxygenation to the water, when the air exhaust of the micropore on membrane pipe is affected by the blockage and exhaust, the pressure that increases in air inlet pipe can push away the first sealing plug compression first spring, makes the first sealing plug with the first sealing ring, makes part of air be discharged, enters the elastic air bag, to facilitate pressure relief, avoid the problem that the stress concentration of membrane pipe material and the low tear strength of rubber are more easily torn and damaged because of the high pressure, cause the oxygenation and check valve function failure of membrane pipe on aerator.

[0017] Second, the utility model discloses when elastic air bag expands to the removal degree, will contact and extrude the sliding plug, makes it sliding plug top into the inside of end cap, makes the sliding plug with the exhaust hole on end cap coincide, thereby discharges the air, if, the pressure that the air pump place shows is still at the higher value, membrane pipe can have been damaged at this time, can replace or overhaul membrane pipe, avoid the problem that the aeration efficiency is reduced because of membrane pipe damage. BRIEF DESCRIPTION OF DRAWINGS

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

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

[0020] Figure 2 It is the sectional view of the utility model;

[0021] Figure 3 It is the A place enlarged view of the utility model in Figure 2 ;

[0022] Figure 4 It is the B place enlarged view of the utility model in Figure 2 .

[0023] In the drawing: 1, membrane pipe;2, support pipe;3, air inlet connector;31, air inlet pipe;32, annular groove;33, pressure relief pipe;331, first sealing ring;332, first sealing plug;3321, second sealing ring;3322, second sealing plug;3323, second spring;333, first spring;34, elastic air bag;4, end cap;41, sliding plug;42, third spring;43, exhaust hole. DETAILED DESCRIPTION

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] A new type of tubular aerator, such as Figure 1 - Figure 4 As shown, the device includes a membrane tube 1, inside which is a support tube 2 for supporting the membrane tube 1. Both ends of the support tube 2 are equipped with pressure relief mechanisms, each including an air inlet connector 3. The air inlet connector 3 is fixedly connected to one end of the membrane tube 1. An annular groove 32 for air injection is formed on the inner wall of the air inlet connector 3 corresponding to the interlayer position between the membrane tube 1 and the support tube 2. An air inlet pipe 31 is fixedly connected to the end of the air inlet connector 3 away from the support tube 2. A pressure relief pipe 33 is fixedly connected to the air inlet connector 3 inside the support tube 2. A first sealing ring 331 is fixedly connected to the inner wall of the pressure relief pipe 33. The inside of the pressure relief pipe 33 is in a first sealing ring... A first sealing plug 332 is provided on the side of ring 331 near the inside of support tube 2. A first spring 333 for supporting the first sealing plug 332 is fixedly connected to the inner wall of pressure relief tube 33. A second sealing ring 3321 is fixedly connected to the inner wall of the first sealing plug 332. A second sealing plug 3322 is provided on the side of the inner wall of the first sealing plug 3321 near the outside of support tube 2. A second spring 3323 for supporting the second sealing plug 3322 is fixedly connected to the inner wall of the first sealing plug 332. An elastic airbag 34 is fixedly connected to the end of pressure relief tube 33 away from air inlet connector 3.

[0026] In this embodiment, during use, an air pump is connected via an air inlet pipe 31. Air is pressurized by the air pump and enters the annular groove 32 inside the air inlet connector 3 through the air inlet pipe 31. Air is injected into the space between the membrane tube 1 and the support tube 2 through the annular groove 32, causing the membrane tube 1 to inflate. Air is then aerated into the water through the expandable micropores on the membrane tube 1, forming microbubbles, thereby achieving the purpose of oxygenating the water. When the exhaust from the micropores on the membrane tube 1 is blocked, affecting the exhaust, the increased pressure inside the air inlet connector 3 will push open the first sealing plug 332 and compress the first spring 333. This causes the first sealing plug 332 and the first sealing ring 331 to allow some air to be discharged into the elastic air bladder 34, facilitating pressure relief and preventing the pressure from reaching a level that is more prone to tearing and damage due to stress concentration in the membrane tube 1 material and the low tear strength of the rubber, which could cause the oxygenation and check valve functions of the membrane tube 1 on the aerator to fail. After the pressure in the air inlet connector 3 returns to normal, the elastic air bladder 34 will shrink again due to its own elasticity and squeeze the air to push open the second sealing plug 3322, thus expelling all the air inside the elastic air bladder 34.

[0027] likeFigure 2 、 Figure 4 As shown in the figure, preferably, the pressure relief mechanism further comprises an end cover 4 fixedly connected to the support pipe 2 at the end away from the air inlet joint 3, the end cover 4 is slidably connected with the inner wall of the support pipe 2 with a sliding plug 41, the inner wall of the end cover 4 is fixedly connected with a third spring 42 at the position corresponding to the sliding plug 41, and the sliding plug 41 and the inside of the end cover 4 are provided with an exhaust hole 43 for pressure relief.

[0028] In this embodiment, when the elastic air bag 34 is inflated to a moving degree, it will contact and press the sliding plug 41, so as to push the sliding plug 41 into the inside of the end cover 4, so that the sliding plug 41 coincides with the exhaust hole 43 on the end cover 4, thereby discharging air. At this time, if the pressure displayed at the air pump is still at a high value, the membrane tube 1 may have been damaged, and the membrane tube 1 can be replaced or repaired to avoid the problem of reduced aeration efficiency caused by damage to the membrane tube 1.

[0029] In use, the novel tubular aerator of the utility model connects the air pump through the air inlet pipe 31, air is pressurized by the air pump and enters the annular groove 32 in the air inlet joint 3 from the air inlet pipe 31, air is injected to the position between the membrane tube 1 and the support pipe 2 through the annular groove 32, the membrane tube 1 is inflated, air is discharged into the water body through the expandable micropores on the membrane tube 1, and micro air bubbles are formed, so that the purpose of oxygenating the water is achieved. When the micropores on the membrane tube 1 are blocked and air discharge is affected, the increased pressure in the air inlet joint 3 will push open the first sealing plug 332 and compress the first spring 333, so that the first sealing plug 332 and the first sealing ring 331 are separated, and part of the air is discharged into the elastic air bag 34, so as to facilitate pressure relief, avoid the problem that the membrane tube 1 is more easily torn and damaged due to the stress concentration of the material of the membrane tube 1 and the low tear strength of the rubber, and cause the oxygenation and non-return functions of the membrane tube 1 on the aerator to fail. After the pressure in the air inlet joint 3 returns to normal, the elastic air bag 34 will be reduced in size due to its elasticity, and will push open the second sealing plug 3322 by pressing air, so as to discharge all the air in the elastic air bag 34. When the elastic air bag 34 is inflated to a moving degree, it will contact and press the sliding plug 41, so as to push the sliding plug 41 into the inside of the end cover 4, so that the sliding plug 41 coincides with the exhaust hole 43 on the end cover 4, thereby discharging air. At this time, if the pressure displayed at the air pump is still at a high value, the membrane tube 1 may have been damaged, and the membrane tube 1 can be replaced or repaired to avoid the problem of reduced aeration efficiency caused by damage to the membrane tube 1.

[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 new type of tube aerator comprising a membrane tube (1), characterized in that: The inside of the membrane tube (1) is provided with a support tube (2) for supporting the membrane tube (1), both ends of the support tube (2) are provided with pressure relief mechanism; The pressure relief mechanism comprises an air inlet joint (3), the air inlet joint (3) is fixedly connected to one end of the membrane tube (1), a ring groove (32) for gas injection is formed in the inner wall of the air inlet joint (3) corresponding to the position of the interlayer between the membrane tube (1) and the support tube (2), an air inlet pipe (31) is fixedly connected to the end of the air inlet joint (3) away from the support tube (2), and a pressure relief pipe (33) is fixedly connected to the position of the air inlet joint (3) inside the support tube (2).

2. A novel tube aerator as claimed in claim 1, wherein: The inner wall of the pressure relief pipe (33) is fixedly connected with a first sealing ring (331), and the first sealing ring (331) is fixedly connected to the inner wall of the pressure relief pipe (33).

3. A novel tube aerator as claimed in claim 2, wherein: The inner wall of the pressure relief pipe (33) is fixedly connected with a first spring (333) for supporting the first sealing plug (332).

4. A novel tube aerator as claimed in claim 3, wherein: The inner wall of the first sealing plug (332) is fixedly connected with a second sealing ring (3321), and the inner wall of the first sealing plug (332) is provided with a second sealing plug (3322) on the side close to the outside of the support tube (2) and a second spring (3323) for supporting the second sealing plug (3322).

5. A novel tube aerator as claimed in claim 4, wherein: The end of the pressure relief pipe (33) away from the air inlet joint (3) is fixedly connected with an elastic air bag (34).

6. A new type of tube aerator according to claim 1, characterized in that: The pressure relief mechanism further comprises an end cover (4), the end cover (4) is fixedly connected to the end of the support tube (2) away from the air inlet joint (3), the end cover (4) and the inner wall of the support tube (2) are slidably provided with a sliding plug (41), and the inner wall of the end cover (4) is fixedly connected with a third spring (42) corresponding to the position of the sliding plug (41).

7. A novel tube aerator as claimed in claim 6, wherein: The inner part of the sliding plug (41) and the end cover (4) is provided with an exhaust hole (43) for pressure relief.

Images