Aeration device and membrane module for separating gas chambers

Abstract

The aeration device and membrane module device for separating gas chambers are provided in the embodiments of the present disclosure. The aeration device comprises a device shell, a separation structure and an inner wall of the shell. A gap between the separation structure and the inner wall of the shell forms a gas supply chamber, and at least one aeration chamber surrounded by the gas supply chamber is formed. The separation structure comprises a first separation component, which is connected to the inner wall and the top wall of the device shell to enclose the area where the aeration chamber is located, and at least one side of the end away from the top of the device shell is recessed to form a rim part which maintains a gap with the adjacent inner wall of the device shell. A second separation component is connected to the rim part to form a surrounding connection with the first separation component, so as to enclose the aeration chamber on the side away from the gap, and extend along the rim part to be connected to the inner wall on the side facing the gap to separate and define the gas supply chamber. Through the clamping connection between the rim part of the first separation component and the installed curved second separation component, the aeration chamber and the gas supply chamber on both sides of the second separation component can be separated, which is convenient and efficient to install.

Description

Technical Field

[0001] This disclosure relates to the field of environmental water treatment technology, and in particular to aeration devices and membrane modules with separated air chambers. Background Technology

[0002] Membrane bioreactor (MBR) technology is a novel and highly efficient wastewater treatment process that combines efficient membrane separation technology with the traditional activated sludge process. The MBR achieves efficient sludge-water separation through hollow fiber membranes. Simultaneously, due to its effective retention capacity, it can retain microorganisms with long generation cycles, achieving deep wastewater purification. Furthermore, nitrifying bacteria can proliferate fully within the system, resulting in significant nitrification and enabling advanced phosphorus and nitrogen removal.

[0003] In related technologies, MBR can be used in conjunction with an aerator to continuously flush the membrane fibers through the gas and liquid two-phase flow generated by aeration, thereby removing the sludge adsorbed on the surface of the membrane fibers.

[0004] Generally, an aerator forms a connected aeration chamber and an air supply chamber. The aeration chamber is used to provide aeration output to the membrane, and the air supply chamber is used to deliver external air to the aeration chamber for aeration. Typically, the aerator requires the assembly of components to form the aeration chamber and the air supply chamber.

[0005] Therefore, finding a structure that is easy to install and can quickly form the aeration chamber and air supply chamber in an aerator has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] In view of the shortcomings of the prior art described above, the purpose of this disclosure is to provide an aeration device and membrane module with a separated air chamber to solve the technical problems in the related art.

[0007] This disclosure provides an aeration device with a partitioned air chamber, comprising: a device housing forming a receiving space with a bottom opening, and a top forming an air inlet and at least one air outlet communicating with the receiving space; a partition structure disposed in the receiving space, forming an air supply chamber with a gap between the partition structure and the inner wall of the device housing, and surrounding at least one aeration chamber; the aeration chamber is provided with an aeration component communicating between the air outlet and the aeration chamber; the partition structure is provided with a ventilation structure communicating between the air supply chamber and the aeration chamber; the aeration chamber and the air outlet are arranged in pairs; the partition structure includes... Includes: a first partition assembly, which is connected to the inner sidewall and top wall of the device housing to enclose the area where the aeration chamber is located, and has a notch on at least one side away from the top of the device housing to form an edge that maintains a gap with the adjacent inner sidewall of the device housing; a second partition assembly, which is connected to the edge to form an enclosure with the first partition assembly to enclose the aeration chamber on the side away from the gap, and extends along the edge to connect with the inner sidewall to divide and define an air supply chamber on the side facing the gap; the ventilation structure is provided on the first partition assembly and / or the second partition assembly.

[0008] In an embodiment of the first aspect, the second partition in the second partition assembly to which the edge is connected extends obliquely upward to the inner wall of the device housing.

[0009] In the first aspect of the embodiment, the cross-section of the second separator is in the shape of a broken line or a curve.

[0010] In an embodiment of the first aspect, the edge portion is fitted with the second spacer.

[0011] In a first aspect embodiment, the first partition in the first partition assembly and the second partition in the second partition assembly are engaged by a strip and a groove, the strip protruding from the groove toward the bottom of the device housing to form a hot melt weld point for hot fusion welding to fix the first partition and the second partition.

[0012] In an embodiment of the first aspect, the first separating assembly includes a set of first separators connected to the inner wall of the device housing and spaced apart according to the arrangement of the aeration chambers to separate the aeration chambers; the first separators have a notch on at least one side at an end away from the top of the device housing to form an edge that maintains a gap with the adjacent inner wall of the device housing; the second separating assembly includes at least one second separator that is connected to the edge of at least one side of the set of first separators.

[0013] In an embodiment of the first aspect, two first separators at the beginning and end positions in the arrangement direction of a group of first separators respectively form gaps with the inner sidewalls of the corresponding two device housings, and the gaps are in communication with the gaps formed by the recesses.

[0014] In an embodiment of the first aspect, the first partition has a recessed edge on the opposite side at one end away from the top of the device housing; the second partition is a pair, one of which is connected to the edge of each of the first partitions on one side, and the other is connected to the edge of each of the first partitions on the other side.

[0015] In a first aspect embodiment, the aeration assembly includes a coaxially fitted air collecting cup and an air outlet pipe; the upper end of the air outlet pipe is connected to the air outlet hole, and the lower end forms an air inlet hole; the upper end of the air collecting cup is open to form an air collecting port, and the air collecting port is higher than the air inlet hole; the bottom end of the air collecting cup is provided with a discharge hole.

[0016] A second aspect of this disclosure provides a membrane module comprising: an aeration device as described in any one of the first aspects and a filter membrane located above the aeration device.

[0017] As described above, this disclosure provides an aeration device and membrane module with a separated air chamber. The aeration device includes: a device housing; a gap between the separating structure and the inner peripheral wall of the housing forms an air supply chamber, and surrounds at least one aeration chamber. The separating structure includes: a first separating component, which is in contact with the inner side wall and top wall of the device housing to enclose the area where the aeration chamber is located, and has a recessed edge on at least one side away from the top of the device housing to maintain a gap with the adjacent inner side wall of the device housing; a second separating component, which is in contact with the edge to form a surrounding fit with the first separating component to enclose the aeration chamber on the side away from the gap, and extends along the edge to contact the inner side wall to separate and define the air supply chamber on the side facing the gap. The aeration chamber and air supply chamber on both sides of the second separating component can be separated by the snap-fit ​​fit between the edge of the first separating component and the installed curved second separating component, making installation convenient and efficient. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of the aeration device in the embodiments of this disclosure is shown.

[0019] Figure 2 This is a three-dimensional structural diagram showing the separation of the housing and gas diversion component of the pulse aeration device in an embodiment of this disclosure.

[0020] Figure 3 This diagram illustrates a three-dimensional structure of the pulse aeration device hood from an inverted perspective, as shown in an embodiment of this disclosure.

[0021] Figure 4 This is a three-dimensional structural diagram of the pulse aeration device hood from another inverted perspective in an embodiment of this disclosure.

[0022] Figure 5 A side view of the aeration device in an embodiment of this disclosure is shown.

[0023] Figure 6 exhibit Figure 5 A cross-sectional view of the aeration device along the FF direction.

[0024] Figure 7 This diagram illustrates the exploded structure of the partition structure in an embodiment of the present disclosure.

[0025] Figure 8 A side view of the second separator is shown in one embodiment of this disclosure.

[0026] Figure 9 A side view of the second separator is shown in another embodiment of this disclosure.

[0027] Figure 10 A side view of the second separator is shown in another embodiment of this disclosure.

[0028] Figure 11 The diagram shown is a top view of the aeration device in an embodiment of this disclosure.

[0029] Figure 12 exhibit Figure 11 A schematic diagram of the cross-sectional view along the EE direction. Detailed Implementation

[0030] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the information disclosed herein. This disclosure can also be implemented or applied through other different specific embodiments, and various details in this disclosure can be modified or changed according to different viewpoints and application modules without departing from the spirit of this disclosure. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this disclosure can be combined with each other.

[0031] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings, so that those skilled in the art to which this disclosure pertains can readily implement it. This disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

[0032] In this disclosure, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in any one or a group of embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples represented in this disclosure, as well as the features of those different embodiments or examples.

[0033] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this disclosure, "a set" means two or more, unless otherwise explicitly specified.

[0034] For the purpose of clarity, devices unrelated to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0035] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0036] While the terms first, second, etc., are used in some examples herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, step, operation, element, module, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, modules, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0037] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this disclosure. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in this specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0038] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the message of the present disclosure, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0039] Generally, an aerator contains a connected aeration chamber and an air supply chamber. The aeration chamber provides aeration output to the membrane, while the air supply chamber supplies external air to the aeration chamber for aeration. Typically, the aerator requires the assembly of components to form the aeration and air supply chambers. Therefore, finding a structure that facilitates easy installation and rapid formation of the aeration and air supply chambers in an aerator has become a pressing technical problem in this field.

[0040] In view of this, the present disclosure provides an aeration device that can be easily installed to quickly form the aeration chamber and air supply chamber in the aerator, thereby solving the problems in the related art.

[0041] Please refer to the following: Figures 1 to 4 . Figure 1 A three-dimensional structural schematic diagram of the aeration device in the embodiments of this disclosure is shown. Figure 2 This is a three-dimensional structural diagram showing the separation of the housing and gas diversion component of the pulse aeration device in an embodiment of this disclosure. Figure 3 This is a three-dimensional structural diagram of the pulse aeration device hood from an inverted perspective, as shown in an embodiment of this disclosure. Figure 4 This is a three-dimensional structural diagram of the pulse aeration device hood from another inverted perspective in an embodiment of this disclosure.

[0042] The aeration device 100 includes a device housing 110, a partition structure 120, and an aeration component 130.

[0043] The device housing 110 forms a receiving space 1100 with a bottom opening 1101. As an example, the device housing 110 includes a top wall and peripheral sidewalls adjoining the edge of the top wall, with no bottom wall forming the opening 1101. The device housing 110 is exemplary implemented as a cuboid, having a length direction (X direction) and a width direction (Y direction). The shape of the device housing 110 can also vary depending on the layout of the aeration chamber 1103. The top of the device housing 110 forms an air inlet 111 communicating with the receiving space 1100 and a plurality of air outlets 112. In some embodiments, the air inlet 111 is located at one end along the length direction of the device housing 110. The air inlet 111 can be connected to an air source to allow air to enter the device housing 110. In some embodiments, the plurality of air outlets 112 can be linearly spaced along one extending direction of the device housing 110.

[0044] Optionally, in Figure 1 and Figure 2 In this system, each vent 112 is connected to a gas splitter 140. The gas splitter 140 is fixedly mounted on the top outer wall of the device housing 110. The gas splitter 140 has a central cavity communicating with the vent 112, and branch outlets extending laterally and uniformly around the central cavity. Large air bubbles discharged from the vent 112 are broken into multiple smaller air bubbles by the gas splitter 140 and output through the branch outlets. These smaller air bubbles can uniformly scrub the membrane module within its coverage area and also agitate the nearby water, achieving the agitation effect of a sludge mixing pump.

[0045] It should be noted that the gas diversion device and its structure in the above embodiments are only examples and can be changed in actual scenarios. For example, the shape may be changed or the gas diversion and diffusion may not be required, and the diversion device may not be set. It is not limited to the embodiments.

[0046] Please see Figure 3 and Figure 4 The aeration device 100 includes a partition structure 120 disposed in the receiving space 1100, forming an air supply chamber 1102 between the partition structure 120 and the inner wall of the device housing 110, and surrounding at least one aeration chamber 1103. As an optional example, Figure 3 The air supply chamber can be annular and continuous, and at least one aeration chamber 1103 can include multiple aeration chambers 1103 spaced apart from each other. The partition structure 120 forms a ventilation structure connecting the air supply chamber and the aeration chamber. As an example, the partition structure 120 can form ventilation structures 160 connecting the air supply chamber 1102 and each aeration chamber 1103 at at least two predetermined height positions on opposite sides. By having annular and continuous air supply chambers 1102 surrounding the multiple aeration chambers 1103, communication between the aeration chamber 1103 and the air supply chamber 1102 can be formed on at least two sides of each aeration chamber 1103, so that the air supply chamber 1102 can uniformly supply air to each aeration chamber 1103. Preferably, the air inlet 111 can also be connected to an air storage tank (not shown) at the far end of the air source. The air storage tank can store or supply air according to the internal and external pressure difference, which also helps to balance the air distribution between each aeration chamber 1103, thereby helping to improve the uniformity of air volume between each aeration chamber 1103. This ensures that the air volume in each aeration chamber 1103 changes uniformly during pulse aeration, and the aeration frequency can also remain consistent. As a result, the wiping of different parts of the membrane fibers is also very uniform, effectively avoiding the problem of flux reduction or even attenuation caused by different cleanliness of membrane fibers in different parts.

[0047] The aeration chamber 1103 and the air outlet 112 (see...) Figure 2 (Set in pairs) Figure 2 The example shows four air vents 112. Figure 4 The image shows an aeration chamber 1103 corresponding to each air outlet 112. Each aeration chamber 1103 is equipped with an aeration component 130, which connects to the corresponding air outlet 112. Optionally, the plurality of air outlets 112 can be arranged at equal intervals. Each aeration chamber 1103 can be coaxially arranged with the corresponding air outlet 112. The plurality of aeration chambers 1103 have the same dimensions, thus having the same capacity for uniform air output.

[0048] It should be noted that in other embodiments, the number and structure of the aeration chambers 1103 may also be varied, and are not limited to the illustrated example.

[0049] like Figure 4 As shown, multiple aeration components 130 are respectively disposed in each aeration chamber 1103 for connecting the paired aeration chambers 1103 and the air outlet 112.

[0050] Please see Figure 4 , Figure 5 , Figure 6 and Figure 7 The diagram illustrates an embodiment of the partition structure 120. Figure 5 A side view of the aeration device in an embodiment of this disclosure is shown. Figure 6 exhibit Figure 5 A cross-sectional view of the aeration device along the FF direction. Figure 7 A schematic diagram showing the exploded structure of the partitioned structure.

[0051] The partition structure 120 includes a first partition component and a second partition component. As an example, the first partition component includes a set of first partition members 121, and the second partition component includes a set of second partition members 122. The set of first partition members 121 and the set of second partition members 122 can be overlapped to separate the aeration chamber 1103 and the air supply chamber 1102, which is simple to assemble, highly efficient, and reliable.

[0052] The first partition component is connected to the inner sidewall and top wall of the device housing 110 to enclose the area where the aeration chamber 1103 is located. As an example, a set of first partitions 121 are connected to the inner wall of the device housing 110 and are spaced apart according to the arrangement of the aeration chambers 1103 to separate them, forming a continuous annular gap with the inner peripheral sidewall of the device housing 110. In the above illustrated example, the first partitions 121 can be arranged parallel to each other along the length of the device housing 110 to form a linear arrangement of aeration chambers 1103. Of course, in other embodiments, this can be varied depending on the number and arrangement of the aeration chambers 1103. For example, if the number of aeration chambers 1103 is reduced, the number of first partitions 121 is also reduced accordingly.

[0053] from Figure 4 and Figure 7 As can be seen, the portion of the edge of the first separator 121 near the top of the device housing 110 forms a continuous, sealed connection with the inner top wall and the inner side walls of the device housing 110, respectively. This prevents air / water exchange between the air supply chamber 1102 and the aeration chamber 1103 (and between the aeration chamber 1103) at the continuous, sealed connection, thus limiting the gas transport between the air supply chamber 1102 and the aeration chamber 1103 via the ventilation structure 160. In a set of first separators 121, the first and last two separators 121 in the arrangement direction form gaps with the inner side walls of the corresponding two device housings 110, while the opposite side edges 1211 of the first separator 121 at the end furthest from the top wall of the device housing 110 also form gaps with the inner side walls of the other two device housings 110. Thus, the two gaps are connected, forming a continuous annular (or partially annular) gap, as if... Figure 4 As shown, after connecting a set of the second separators 122, the annular continuous air supply chamber 1102 can be formed in the annular continuous gap.

[0054] Optionally, the first partition 121 may be provided with a reinforcing structure, such as one or more reinforcing ribs 1212 connecting the first partition 121 and the inner top wall / inner side wall of the device housing 110.

[0055] The second separating assembly may include a set of second separators 122 that surround and cooperate with the set of first separators 121 to separate each of the aeration chambers 1103 on the side opposite to the gap (i.e., the inner side). Figure 4 and Figure 7In the present disclosure, the first dividing members 121 are arranged at intervals along a straight line, and open sides are formed on two opposite sides of the first dividing members 121 in the arrangement direction. There may be two second dividing members 122, which are respectively fixedly connected to the edge portions 1211 of the first dividing members 121 on the same side at the two sides to form an enclosure to fill the open sides, and enclose each of the aeration cavities 1103. It can be understood that in other examples, since the arrangement of the first dividing members 121 changes based on the required arrangement of the aeration cavities 1103, the number and size of the second dividing members 122 and the number of the first dividing members 121 connected thereto can all be changed. For example, for a plurality of aeration cavities 1103 in a "field"-shaped layout, the middle "ten" shape can be formed by the first dividing members 121, and the outer "frame" shape can be formed by the second dividing members 122. Therefore, the embodiment of the dividing structure 120 in the drawings of the present disclosure is only an example, and is not limited thereto. Further, the set of second dividing members 122 can define the air supply cavity 1102 in the gap on a side facing the gap (i.e., the outer side). Thus, the structure of the aeration device 100 is formed, which has a plurality of aeration cavities 1103 and the air supply cavity 1102 surrounding the aeration cavities 1103. The second dividing member 122 can be provided with the ventilation structure 160 to connect the air supply cavity 1102 and each aeration cavity 1103.

[0056] As Figure 7 shown, at least one side of the end of the first dividing assembly away from the top of the device housing is recessed to form an edge portion that maintains a gap with the adjacent inner side wall of the device housing. Specifically, the edge portion 1211 (i.e., the end close to the bottom) of each first dividing member 121 at the end away from the top of the device housing 110 is formed by recessing the end on at least one side, and maintains the gap with the adjacent inner side wall of the device housing 110. The contour of the edge portion 1211 is exemplified as a curved shape, such as a broken line, a curved line, or a shape connecting a curved line with a straight line, and the example in the figure is a broken line shape. The edge portion 1211 bends and extends upward from a gap position where it maintains a gap with the inner side wall of the adjacent device housing 110 until it abuts against the inner side wall of the adjacent device housing 110. The second dividing member 122 bends and extends along the edge portion to connect with the inner side wall, so as to divide and define the air supply cavity on a side facing the gap. Specifically, the second dividing member 122 is engaged with the edge portion 1211 in a shape-fitting manner, as in Figure 6The spacer divides the spacer into an air supply chamber 1102 and an aeration chamber 1103 located on opposite sides. The advantage of this design is that the volume ratio between the aeration chamber 1103 and the air supply chamber 1102 can be adjusted. Specifically, if the first separator 121 is designed to be completely separated from the inner wall of the adjacent device housing 110, the volume of the gap increases, meaning the volume of the air supply chamber 1102 increases while the volume of the aeration chamber 1103 decreases. Because the ventilation structure 160 is relatively low, a large portion of the upper volume of the air supply chamber 1102 becomes unusable, instead encroaching on and sacrificing the volume of the aeration chamber 1103, thus resulting in a lower aeration intensity for an aeration device of the same size. By designing the curved edge 1211 of the first separator 121 and the cooperating second separator 122, the space above the portion of the second separator 122 that bends to the inner wall of the adjacent device housing 110 becomes the volume of the aeration chamber 1103. With the same volume of aeration device 100, the volume of the aeration chamber 1103 can be effectively increased, thereby increasing the aeration intensity. It is understood that different volume ratios of the aeration chamber 1103 and the air supply chamber 1102 can be obtained based on the different degrees of curvature of the edge 1211 and the second separator 122.

[0057] Please refer to them together. Figure 7 and Figure 8 , Figure 8 The diagram shows a side view of the second separator in an embodiment of this disclosure.

[0058] As can be seen, the edge 1211 and the second separator 122 connected thereto extend upwardly at an angle to the inner wall of the device housing 110. In other embodiments, such as Figure 9 As shown, the edge 1211 and the second separator 122 connected thereto can also be selected as a right-angle bend structure. Alternatively, in other embodiments, such as Figure 10 As shown, the edge 1211 and the second separator 122 can also be bent at an acute angle, i.e., a downwardly inclined structure. In short, the bending angle of the edge 1211 and the second separator 122 can be adjusted according to the volume ratio requirements between the aeration chamber 1103 and the air supply chamber 1102.

[0059] exist Figure 7 In this configuration, the first partition 121 and the second partition 122 are engaged with each other. The first partition 121 and the second partition 122 can be engaged with each other via a strip and a groove 1221, meaning the strip can be inserted into the groove 1221. Optionally, the strip and the groove 1221 can be interference-fitted for mutual locking and positioning. Exemplarily, the strip is formed on the edge 1211 of the first partition 121, and the groove 1221 is formed on the second partition 122. Alternatively, in other embodiments, the objects on which the strip and the groove 1221 are located can be interchanged, and this is not a limitation.

[0060] In addition, Figure 3 It shows Figure 7 The state after the first separator 121 and the second separator 122 are engaged. Figure 8 As can be seen, a portion of the insert protrudes from the groove 1221 at the bottom of the device housing 110. Since the first separator 121 and the second separator 122 can be made of a thermoplastic material, the protruding portion of the insert can serve as a thermoplastic weld point, which is melted away by thermoplastic welding to fix the first separator 121 and the second separator 122 at a single point. Utilizing the protruding portion of the thermoplastic material after interlocking as a weld point for thermoplastic welding to form a fixed connection eliminates the need for metal screws, reduces the risk of sewage corrosion, and provides a more robust thermoplastic fixation, effectively extending the lifespan of the aeration device.

[0061] It is understood that in other embodiments, if the first partition 121 is provided with an edge 1211 on only one side, the second partition 122 may also be provided with only one on the corresponding side. Therefore, the number of the second partition 122 can be varied as needed and is not limited to the figure shown.

[0062] Back Figure 3 and Figure 4 The specific structure of the ventilation structure 160 is described below. Optionally, the ventilation structure 160 may include at least one ventilation opening 162 formed at the bottom end of the partition structure 120, and at least one air supply hole unit 161 formed on the wall surface of the partition structure 120. As an example, the air supply hole unit 161 may be positioned above the ventilation opening 162.

[0063] As an optional example, the cavity wall of each aeration chamber 1103 (i.e., the portion of the aeration chamber 1103 enclosed by the partition structure 120) may be provided with multiple ventilation openings 162, for example... Figure 3 and Figure 4 The four ventilation openings 162 shown are evenly distributed in pairs on a pair of opposing cavity walls of the aeration chamber 1103, cooperating with the annular continuous air supply chamber 1102 to uniformly introduce air into each aeration chamber 1103. Optionally, the four ventilation openings 162 can be arranged symmetrically around the central axis of the corresponding aeration chamber 1103. It is understood that in other embodiments, the number of ventilation openings 162 can vary; for example, a pair of ventilation openings 162 may be symmetrically distributed relative to the central axis of the aeration chamber 1103 on a pair of opposing cavity walls adjacent to the air supply chamber 1102. For example, in Figure 4In this configuration, a pair of ventilation openings 162 can be arranged radially along the center of the aeration chamber 1103 on the pair of chamber walls, such as at positions A and B on the pair of chamber walls along the width direction perpendicular to the housing 110 of the device. Alternatively, they can be staggered in the width direction, such as at positions C and D on the pair of chamber walls at an angle.

[0064] In some embodiments, at least two air supply hole units 161 are symmetrically distributed on a pair of opposing cavity walls adjacent to the air supply cavity 1102 of the aeration cavity 1103, relative to the central axis of the aeration cavity 1103. Figure 3 and Figure 4 The diagram shows that there is a pair of air supply hole units 161, which are staggered in the width direction and symmetrically arranged on the walls of the pair of chambers relative to the central axis of the aeration chamber 1103, so as to cooperate with the annular continuous air supply chamber 1102 to uniformly ventilate each aeration chamber 1103.

[0065] The air supply unit 161 may include at least one air supply hole 1611, and two air supply holes 1611 are shown in the figure. The size and number of air supply holes 1611 in each air supply unit 161 are related to the air supply volume from the air supply chamber 1102 to the aeration chamber 1103. Since the aeration device 100 is placed in the wastewater to be treated, if the air supply holes 1611 are too small, they are easily blocked by sludge; if the air supply holes 1611 are too large or there are too many, it can cause gas fluctuations. Therefore, the appropriate size and number of air supply holes 1611 can be selected according to the required air supply effect.

[0066] In other embodiments, the number of air supply port units 161 and the number of air supply ports 1611 included can also vary. In one example, there may be four air supply port units 161, located one-to-one in... Figure 2 and Figure 4 Above each vent opening 162, each air supply unit 161 may include only one air supply port 1611, which is consistent with... Figure 2 and Figure 4 In the embodiment, four ventilation openings 162 are used in conjunction with four air supply holes 1611 for ventilation. The ventilation volume is similar, but the structure can be different, and the uniformity may be better.

[0067] In addition, the ventilation structure 160 includes a higher-positioned air supply hole unit 161 and a lower-positioned ventilation opening 162. According to the aeration principle of the pulse aeration device, gas introduced into the air inlet 111 flows downwards into the air supply chamber 1102, lowering the water level in the air supply chamber 1102 so that the gas first connects to the higher-positioned air supply hole unit 161. Therefore, the ventilation unit is preferentially used to supply air from the air supply chamber 1102 to the aeration chamber 1103. When the air supply hole unit 161 is blocked and cannot supply air, the water level can be further lowered to connect the gas and the ventilation opening 162, still allowing air supply from the air supply chamber 1102 to the aeration chamber 1103. That is to say, the ventilation opening 162 serves as a backup for the air supply hole unit 161 to supply air from the air supply chamber 1102 to the aeration chamber 1103, achieving a "main-backup" redundant air supply design, which can effectively improve the reliability of the aeration device 100.

[0068] It should be noted that, since each aeration chamber 1103 is equipped with a corresponding ventilation structure 160, therefore Figure 3 and Figure 4 Only some parts are marked, not all of them. In other embodiments, the plurality of air outlets 112 and aeration chambers 1103 may not be arranged in a straight line, but may be arranged in an array such as a square, ring, or circle, and are not limited to the structure in this embodiment.

[0069] It is understood that the ventilation structure 160 shown in the figure is only an exemplary structure and can be changed according to the actual situation, such as adopting any selection or combination of ventilation openings and air supply holes.

[0070] For example Figure 11 and Figure 12 The structure of the aeration component 130 is described in detail below. Figure 11 The diagram shown is a top view of the aeration device 100 in an embodiment of this disclosure. Figure 12 exhibit Figure 11 Schematic diagram of the cross-sectional view along the EE direction.

[0071] The aeration assembly 130 connects the air outlet 112 and the aeration chamber 1103. For example... Figure 12As illustrated, the aeration assembly 130 includes an air outlet pipe 131 and an air collection cup 132. The air outlet pipe 131 and the air collection cup 132 are coaxially fitted together (or eccentrically fitted in other embodiments). One end (i.e., the upper end) of the air outlet pipe 131 is connected to the inner top wall of the device housing 110 and communicates with the air outlet 112, while the other end (i.e., the lower end) away from the inner top wall of the device housing 110 has an air inlet 1311. The air collection cup 132 is fitted upwards outside the air outlet pipe 131, with a gap maintained between its upper end and the inner top wall of the device housing 110, forming an air collection port 1321 higher than the air inlet 112, and a discharge port 1322 at its bottom end. The discharge port 1322 is used to allow sludge sedimentation in the air collection chamber 1323 of the air collection cup 132 to be discharged from the discharge port 1322 into the aeration chamber 1103.

[0072] The working principle of the aeration device 100 is explained below. Gas is introduced through the air inlet 111 and flows downwards into the air supply chamber 1102. As the gas enters and rises in the air supply chamber 1102, it forces water out from the bottom of the device housing 110, thus lowering the water level in the air supply chamber 1102. When the water level drops to expose the air supply hole unit 161, the air supply chamber 1102 connects to the aeration chamber 1103 through the air ventilation unit to supply air to the aeration chamber 1103. Similarly, as gas is continuously introduced into the aeration chamber 1103, the water level in the aeration chamber 1103 decreases. Since the air collecting cup 132 is connected to the aeration chamber 1103 through the air collecting port 1321, the water level also decreases until the water level drops to expose the air inlet 1311 at the bottom of the air collecting cup 132. Gas can enter the air collecting cup 132 through the air collecting port 1321 and then enter the air outlet pipe 131 from the air inlet 1311 to be discharged through the air outlet 112, so that it can be diverted and output by the gas diverter 140 to form aeration. After aeration is formed, the sewage in the aeration chamber 1103 rises and refills the aeration chamber 1103. Subsequently, by continuously filling the air collecting chamber 1323 of the air collecting cup 132 with air, the aeration device 100 will continuously repeat the above aeration process. Thus, the aeration device 100 will form an intermittent aeration. To facilitate the sewage being forced out of the air supply chamber 1102 and the aeration chamber 1103, it can be as follows... Figure 4 As shown in the figure, the device housing 110 may also be provided with overflow channels 1104 for water to overflow at the bottom of the two inner side walls.

[0073] exist Figure 12 In this process, the vent pipe 131 can be integrally formed with the device housing 110, or the vent pipe 131 can be fixedly connected to the inner top wall of the device housing 110 by means of snap-fit, heat fusion or other methods.

[0074] like Figure 12As can be seen, the air outlet pipe 131 is a pipe with a straight central axis that is coaxial with the air outlet 112, and the air collecting cup 132 is a cup that is coaxial with the air outlet pipe 131 and extends in a straight line.

[0075] Alternatively, in other optional embodiments, the gas collecting cup 132 and the gas outlet pipe 131 may be eccentrically positioned along one extension direction of the device housing 110, i.e., their central axes are not collinear. Alternatively, the gas outlet pipe 131 and the gas outlet hole 112 may be eccentrically positioned along the width direction of the device housing 110. Alternatively, the gas outlet pipe 131 and the gas outlet hole 112 may be eccentrically positioned along both the length and width directions of the device housing 110. The gas outlet pipe 131 is more conducive to breaking the instantaneous balance of pulse aeration, making pulse aeration easier to occur and more uniform, unaffected by environmental factors.

[0076] For example Figure 4 and Figure 12 As shown, optionally, a baffle 150 may be provided in the flow channel connecting the air inlet 111 of the device housing 110 to the air supply chamber 1102. When gas flows into the air inlet 111, the flow velocity may be too high, causing it to directly rush out of the air supply chamber 1102. Furthermore, the downward rush of gas may create turbulence, affecting the uniformity of air supply to the aeration chamber 1103 and potentially causing localized disturbances. The baffle 150 can mitigate the impact force of the rushing gas, allowing the gas impacting the baffle 150 to be blocked and slowed down before flowing into the adjacent air supply chamber 1102. This ensures a smooth air supply to the air supply chamber 1102, effectively balancing and stabilizing the air supply / aeration of the aeration device 100. As an example, if the flow channel is vertical, the baffle 150 can be located below the air inlet 111, either directly below or offset from directly below. Alternatively, in other embodiments, the flow channel may be of other shapes or segments, and is not limited thereto. For example, the baffle 150 may be a planar, polygonal, or arc-shaped baffle, etc. For example, the baffle 150 may be integrally connected to the device housing 110. Further optionally, the baffle 150 may be integrally connected to the sidewall of the device housing 110 adjacent to the air inlet 111 (for example, one end sidewall of the device housing 110 in one extending direction). To enhance the strength of the baffle 150, its opposite ends may be respectively connected to the end sidewall and a first separator 121 adjacent to the end sidewall, while the other two ends of the baffle 150 maintain a distance from the corresponding inner sidewall of the device housing 110 to allow gas to enter the air supply chamber 1102.

[0077] In some embodiments, the device housing 110, the air outlet pipe 131 which can be integrally connected to the device housing 110, the first partition 121, the second partition 122, and the air collection cup 132, etc., can all be made of thermoplastic materials. This allows for the convenient use of thermoplastic welding to fix these parts, eliminating the need for screws or other metal parts, reducing the risk of corrosion by sewage, and also improving the reliability between parts and reducing the internal vibration of the aeration device 100 underwater.

[0078] In another embodiment of this disclosure, a membrane module may also be provided. The membrane module includes an aeration device 100 as described in any of the previous embodiments, and a filter membrane positioned above the aeration device 100. The pulse aerator aeration process creates a scrubbing and cleaning effect on the filter membrane.

[0079] In summary, the embodiments of this disclosure provide an aeration device and membrane module with a separated air chamber. The aeration device includes: a device housing; a gap between the separating structure and the inner peripheral wall of the housing forms an air supply chamber, and surrounds at least one aeration chamber surrounded by the air supply chamber; the separating structure includes: a first separating component, which is in contact with the inner side wall and the top wall of the device housing to enclose the area where the aeration chamber is located, and has a notch on at least one side away from the top of the device housing to form an edge portion that maintains a gap with the adjacent inner side wall of the device housing; a second separating component, which is in contact with the edge portion to form a surrounding fit with the first separating component to enclose the aeration chamber on the side away from the gap, and extends along the edge portion to contact the inner side wall to separate and define the air supply chamber on the side facing the gap. The aeration chamber and the air supply chamber on both sides of the second separating component can be separated by the snap-fit ​​fit between the edge portion of the first separating component and the installed curved second separating component, making installation convenient and efficient.

[0080] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this disclosure should still be covered by the protection scope of this disclosure.

Claims

1. An aeration device with a separated air chamber, characterized in that, include: The device housing forms a receiving space with an opening at the bottom, and an air inlet and at least one air outlet communicating with the receiving space at the top; A partition structure is provided in the accommodating space, and the gap between it and the inner peripheral wall of the device housing forms an air supply chamber, and surrounds at least one aeration chamber. The aeration chamber is provided with an aeration component that connects the air outlet and the aeration chamber. The partition structure is provided with a ventilation structure that connects the air supply chamber and the aeration chamber; The partition structure includes: The first partition component is connected to the inner wall and top wall of the device housing to enclose the area where the aeration chamber is located, and has a recessed edge on at least one side away from the top of the device housing to maintain a gap with the adjacent inner wall of the device housing. The second partition component is grounded with the edge to form a surrounding fit with the first partition component, thereby forming an aeration chamber on the side away from the gap, and extends along the edge to connect with the inner sidewall to divide and define an air supply chamber on the side facing the gap; the ventilation structure is provided on the first partition component and / or the second partition component.

2. The aeration device according to claim 1, characterized in that, The second partition in the edge and the second partition assembly to which it is connected extends upward at an angle to the inner wall of the device housing.

3. The aeration device according to claim 2, characterized in that, The cross-section of the second separator is in the shape of a broken line or a curve.

4. The aeration device according to claim 2, characterized in that, The edge portion is fitted with the second separator.

5. The aeration device according to claim 1, characterized in that, The first partition in the first partition assembly and the second partition in the second partition assembly are engaged by a strip and a groove. The strip protrudes from the groove toward the bottom of the device housing to form a hot melt weld point for fixing the first partition and the second partition.

6. The aeration device according to claim 1, characterized in that, The first partition assembly includes a set of first partitions connected to the inner wall of the device housing and spaced apart according to the arrangement of the aeration chambers to separate the aeration chambers; the first partitions have a notch on at least one side at the end away from the top of the device housing to form an edge that maintains a gap with the adjacent inner wall of the device housing; the second partition assembly includes at least one second partition that is connected to the edge of at least one side of the set of first partitions.

7. The aeration device according to claim 6, characterized in that, In a set of first separators, the first and last two first separators at the beginning and end positions in the arrangement direction respectively form gaps with the inner sidewalls of the corresponding two device housings, and the gaps are connected to the gaps formed by the recesses.

8. The aeration device according to claim 6 or 7, characterized in that, The first separator has a recessed edge on the opposite side at one end away from the top of the device housing; there is a pair of second separators, one of which is connected to the edge of each first separator on one side, and the other is connected to the edge of each first separator on the other side.

9. The aeration device according to claim 1, characterized in that, The aeration assembly includes a coaxially fitted air collecting cup and an air outlet pipe; the upper end of the air outlet pipe is connected to the air outlet hole, and the lower end forms an air inlet hole; the upper end of the air collecting cup is open to form an air collecting port, and the air collecting port is higher than the air inlet hole; the bottom end of the air collecting cup is provided with a discharge hole.

10. A membrane module, characterized in that, include: The aeration device and the filter membrane located above the aeration device as described in any one of claims 1 to 9.

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