CN218478608U

CN218478608U - MBR pulse aeration structure

Info

Publication number: CN218478608U
Application number: CN202222121165.7U
Authority: CN
Inventors: 黄凤祥; 姚萌; 洪昱斌; 方富林; 蓝伟光
Original assignee: Suntar Membrane Technology Xiamen Co Ltd
Current assignee: Suntar Membrane Technology Xiamen Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-02-14
Anticipated expiration: 2032-08-12

Abstract

The utility model discloses a MBR pulse aeration structure, which comprises a body, this body has an inner chamber and two air inlets, the length direction's of body both ends are located to these two air inlets, this inner chamber has opening and one and encircles the internal perisporium, should encircle the roof of the upper end of internal perisporium and inner chamber and link to each other just its weak point in the perisporium of inner chamber, and divide this inner chamber into the chamber and an aeration chamber of admitting air of an intercommunication two air inlets, the aeration intracavity have a plurality of evenly distributed with the gas collection cup of aeration chamber intercommunication, the roof of inner chamber corresponds each gas collection cup and has all seted up a gas discharge through-hole, this gas discharge through-hole's periphery orientation gas collection chamber extends to form one and stretches into this gas collection chamber and the blast pipe that communicates with this gas collection chamber. The utility model discloses realize the pulse aeration in physical structure, the pipeline is simple, only needs a fan, and equipment cost is low.

Description

MBR pulse aeration structure

Technical Field

The utility model particularly relates to a MBR pulse aeration structure.

Background

At present, the MBR technology of the immersed membrane bioreactor is mainly applied to the sewage treatment industry, such as the treatment and recycling of urban sewage, the treatment fields of high-concentration organic wastewater, refractory industrial wastewater, wastewater in public sensitive sanitary areas and the like. The main functional components are a bioreactor and a membrane combiner, and a hollow fiber membrane combiner and a flat plate membrane combiner are two most commonly used membrane combiners. The hollow fiber membrane module mainly comprises a curtain type membrane module, a seaweed type membrane module and a membrane bundle type membrane module. The flat membrane group device can be mainly divided into a rigid flat membrane and a flexible flat membrane.

The MBR membrane group device is the core of MBR engineering and becomes one of the research and development focuses of various large companies. The aeration device is an important component of the MBR membrane group device and is the key of the MBR in pollution resistance, energy conservation and consumption reduction. The conventional perforation aeration mode adopts constant air volume, and the device is simpler, but has the problems of perforated pipe blockage and higher energy consumption. The strong and weak aeration or high and low aeration mode realizes periodic high and low aeration switching through pipeline valve switching and PLC control, can reduce aeration energy consumption, and has the problems of two fans, complex pipeline and high requirement on the valve. The pulse aeration system is one of the mainstream in recent years, in which pulse aeration is physically realized by using a small-flow continuous air intake and a pulse aerator. However, the pulse aerator still has the problem that the traditional perforated air inlet pipe and the traditional aeration hole are blocked, and the pulse aerator can be out of work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the prior art defect, provide a MBR pulse aeration structure.

The utility model discloses a concrete technical scheme as follows:

an MBR pulse aeration structure comprises a body, wherein the body is provided with an inner cavity and two air inlets, the two air inlets are arranged at two ends of the length direction of the body, the inner cavity is provided with a lower opening and a surrounding inner peripheral wall, the upper end of the surrounding inner peripheral wall is connected with the top wall of the inner cavity and is shorter than the peripheral wall of the inner cavity, and the inner cavity is divided into an air inlet cavity communicated with the two air inlets and an aeration cavity;

a plurality of uniformly distributed gas collecting cups communicated with the aeration cavity are arranged in the aeration cavity, each gas collecting cup is provided with a gas collecting cup bottom wall, the periphery of the gas collecting cup bottom wall extends upwards to form a gas collecting cup peripheral wall, the gas collecting cup peripheral wall and the gas collecting cup bottom wall form a gas collecting cavity with an upper opening, and meanwhile, the gas collecting cup peripheral wall is connected and fixed with the surrounding inner peripheral wall,

the top wall of the inner cavity is provided with an exhaust through hole corresponding to each gas collecting cup, and the periphery of the exhaust through hole extends towards the gas collecting cavity to form an exhaust pipe which extends into the gas collecting cavity and is communicated with the gas collecting cavity.

In a preferred embodiment of the present invention, the aeration chamber has a plurality of partition walls to divide the aeration chamber into a plurality of aeration partition chambers, and each aeration partition chamber has at least one of the air-collecting cups.

In a preferred embodiment of the present invention, at least one mud discharging through hole is formed on the bottom wall of the gas collecting cup.

Further preferably, the diameter of the sludge discharge through hole is smaller than that of the exhaust pipe.

In a preferred embodiment of the present invention, the lower portion of the peripheral wall of the inner chamber is provided with a plurality of spare exhaust holes located below the lower end of the exhaust pipe.

In a preferred embodiment of the present invention, the gas distribution cover is covered above the body, and a plurality of aeration holes corresponding to the exhaust through holes are uniformly formed on both sidewalls of the gas distribution cover corresponding to the length direction of the body.

Further preferably, the shape of the aeration hole is a long strip, a square or a circle.

The beneficial effects of the utility model are that:

1. the utility model discloses realize the pulse aeration on physical structure, the pipeline is simple, only needs a fan, and equipment cost is low.

2. The utility model discloses pulse aerator sets up two air inlets, and the bi-polar is admitted air, and the aeration is more even.

3. The utility model discloses a bottom in chamber of admitting air has the under shed, and mud can not the siltation, has avoided traditional perforation intake pipe to be blockked up the not unobstructed problem of admitting air that arouses by mud.

4. The utility model discloses a mud through-hole is arranged to gas collection cup bottom, can discharge the mud that gets into the gas collecting cavity, has avoided the blast pipe to be blockked up by mud and unable aeration.

5. The utility model discloses be provided with reserve exhaust hole, under the special circumstances, when the blast pipe was blockked up by mud, gaseous can be followed reserve exhaust hole and discharged, maintains the aeration.

6. The utility model discloses set up the gas distribution cover, reduce mud and fall into the gas collecting chamber through the exhaust through-hole, evenly distribute gas simultaneously.

Drawings

Fig. 1 is a front view of a body according to embodiment 1 of the present invention.

Fig. 2 is a plan view of the body according to embodiment 1 of the present invention.

Fig. 3 is a bottom view of the body according to embodiment 1 of the present invention.

Fig. 4 is a structural sectional view of a body according to embodiment 1 of the present invention.

Fig. 5 is a structural sectional view of the body with the air distribution cover according to embodiment 1 of the present invention.

Detailed Description

The technical solution of the present invention will be further illustrated and described below with reference to the accompanying drawings by means of specific embodiments.

Example 1

As shown in fig. 1 to 4, an MBR pulse aeration structure comprises a body 1 (preferably rectangular parallelepiped in this embodiment), the body 1 having an inner chamber 11 and two air inlets 12, the two air inlets 12 being disposed at two ends of the body 1 in the length direction, the inner chamber 11 having a lower opening 110 and a surrounding inner peripheral wall 111, the upper end of the surrounding inner peripheral wall 111 being connected to the top wall of the inner chamber 11 and being shorter than the peripheral wall of the inner chamber 11, and dividing the inner chamber 11 into an air inlet chamber 112 and an aeration chamber 113 communicating the two air inlets 12;

as shown in fig. 3 and 4, a plurality of uniformly distributed gas collecting cups 115 communicated with the aeration chamber 113 are arranged in the aeration chamber 113, the gas collecting cup 115 has a gas collecting cup bottom wall 1150, the periphery of the gas collecting cup bottom wall 1150 extends upwards to form a gas collecting cup peripheral wall 1151, the gas collecting cup peripheral wall 1151 and the gas collecting cup bottom wall 1150 form a gas collecting chamber 1152 with an upper opening, meanwhile, the gas collecting cup peripheral wall 1151 is fixedly connected with the surrounding inner peripheral wall 111, and at least one row of mud through holes 1153 is arranged on the gas collecting cup bottom wall 1150.

As shown in fig. 3 and 4, the top wall of the inner cavity 11 is opened with an exhaust through hole 116 corresponding to each air collecting cup 115, and the periphery of the exhaust through hole 116 extends toward the air collecting cavity 1152 to form an exhaust pipe 117 extending into the air collecting cavity 1152 and communicating with the air collecting cavity 1152. The gas in the gas collecting chamber 1152 may enter the gas discharge pipe 117 and then be discharged from the gas discharge through hole 116. Preferably, a plurality of spare exhaust holes 114 are formed in the lower portion of the peripheral wall of the inner chamber 11, and the spare exhaust holes 114 are located below the lower end of the exhaust pipe 117, so that in a special case, when the aeration stops due to the fact that the exhaust pipe 117 is blocked by sludge, gas can be exhausted from the spare exhaust holes 114 to maintain the aeration, and the phenomenon that the aeration stops to cause sludge accumulation of the MBR membrane module is avoided.

The mud discharging through hole 1153 of the air collecting cup 115 is communicated with the air collecting cavity 1152 and the aeration cavity 113, the sludge entering the air collecting cavity 1152 through the exhaust through hole 116 can fall into the aeration cavity 113 through the mud discharging through hole 1153 of the air collecting cup 115, and the sludge further falls into the bottom of the membrane pool due to the hollow-out bottom of the aeration cavity 113. Thus, sludge will not accumulate in the gas collecting chamber 1152, and the exhaust pipe 117 is prevented from being blocked by sludge and unable to be aerated. Preferably, the mud discharge hole 1153 of the gas collecting cup 115 has a circular or regular polygonal shape, and the diameter thereof is preferably smaller than that of the gas discharge pipe 117, so as not to damage the pulse gas collection phenomenon.

As shown in fig. 3 and 4, it is preferred that the aeration chamber 113 has a plurality of partition walls 118 therein to divide the aeration chamber 113 into a plurality of aeration compartments 1180, each aeration compartment 1180 having at least one said air collection cup 115 therein.

As shown in fig. 5, it preferably further includes an air distribution cover 2 covering the upper portion of the body 1, two sidewalls of the air distribution cover 2 corresponding to the length direction of the body 1 are uniformly provided with a plurality of aeration holes 20 corresponding to the exhaust through holes 116, and the aeration holes 20 are in the shape of long strips, squares or circles. The top wall of the gas distribution hood 2 is sealed, so that the sludge is reduced to fall into the gas collection cavity 1152 through the exhaust through holes 116, and meanwhile, the two sides of the gas distribution hood 2 can be uniformly distributed through the plurality of aeration holes 20.

With the present invention submerged in sewage, gas is inflated through the inlet 12 to the inlet chamber 112. The gas filled in the gas inlet chamber 112 continuously rises to the top wall of the body 1. As the gas in the inlet chamber 112 increases, the liquid level in the inlet chamber 112 will decrease. When the liquid level drops to the bottom of the surrounding inner circumferential wall 111, the gas enters the aeration chamber 113 because the surrounding inner circumferential wall 111 is shorter than the circumferential wall of the inner chamber 11. With the increasing of the gas in the aeration cavity 113, the sewage level in the aeration cavity 113 will decrease continuously until the liquid level in the aeration cavity 113 is level with the lower end of the exhaust pipe 117, the gas in the aeration cavity 113 enters the exhaust pipe 117 and further overflows from the exhaust through hole 116, and the gas is released in the form of big bubbles instantly, forming the pulse aeration. At the same time as the gas in the aeration chamber 113 is released, the liquid level rises again due to the siphon principle, and the sewage fills the aeration chamber 113 again. Subsequently, the gas is charged into the gas inlet cavity 112 through the gas inlet 12, and then the gas enters the aeration cavity 113 and the gas collecting cavity 1152 in sequence and finally is discharged from the gas outlet through hole 116. The utility model repeatedly aerates and exhausts to form intermittent large-bubble pulse aeration.

The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.

Claims

1. The utility model provides a MBR pulse aeration structure which characterized in that: comprises a body, the body is provided with an inner cavity and two air inlets, the two air inlets are arranged at two ends of the body in the length direction, the inner cavity is provided with a lower opening and a surrounding inner peripheral wall, the upper end of the surrounding inner circumferential wall is connected with the top wall of the inner cavity and is shorter than the circumferential wall of the inner cavity, and the inner cavity is divided into an air inlet cavity and an air exposure cavity which are communicated with the two air inlets;

2. The MBR pulse aeration structure of claim 1, wherein: the aeration cavity is internally provided with a plurality of partition walls so as to divide the aeration cavity into a plurality of aeration separation cavities, and each aeration separation cavity is internally provided with at least one air collecting cup.

3. The MBR pulse aeration structure of claim 1, wherein: at least one row of mud through holes are formed in the bottom wall of the gas collecting cup.

4. The MBR pulse aeration arrangement of claim 3, wherein: the diameter of the sludge discharge through hole is smaller than that of the exhaust pipe.

5. The MBR pulse aeration structure of claim 1, wherein: the lower part of the peripheral wall of the inner cavity is provided with a plurality of standby exhaust holes which are positioned below the lower end of the exhaust pipe.

6. The MBR pulse aeration arrangement of claim 1, wherein: the air distribution cover is covered above the body, and a plurality of aeration holes corresponding to the exhaust through holes are uniformly formed in two side walls of the air distribution cover in the length direction corresponding to the body.

7. The MBR pulse aeration arrangement of claim 6, wherein: the aeration holes are in the shape of long strips, squares or circles.