Double-nozzle membrane structure of aeration pipe of ABR (anaerobic baffled reactor) reaction tank

Abstract

The utility model discloses a double-nozzle membrane structure of an aeration pipe of an ABR (anaerobic baffled reactor) reaction tank, which is characterized in that two fasteners with spray pipes are respectively buckled on the upper surface and the lower surface of the aeration pipe, clamping edges on two sides of the fasteners are jointly embedded into a fixing frame, and complete threads on the outer surfaces of two ends of the fasteners are screwed with fixing rings, namely, the middle parts and two ends of the fasteners are all pressed on the aeration pipe; the external pressure applied to the two fasteners is uniform, and the two fasteners are firmly buckled and connected with the aeration pipe. A diaphragm mounting groove in the bottom surface of a base body of the fastener spray pipe is provided with an annular groove, the diaphragm is pressed on the surface of the aeration pipe by the annular groove and a convex edge arranged on the spray pipe on the inner side, and the inner diameter of a spray hole in a boss of the diaphragm is larger than that of a spray hole in the part, close to the spray pipe, of the diaphragm, so that air conveyed by the aeration pipe can be sprayed out in a small bubble state more rapidly; the contact with sewage is more sufficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial wastewater treatment, and relates to the improvement of an aeration pipe structure, in particular to an ABR reaction tank aeration pipe double-nozzle membrane structure. Background Art

[0002] The aeration tube is a device installed at the bottom of the ABR reaction tank, which converts high-pressure gas into bubbles and sprays them into sewage, so that sewage and air are fully in contact. Aeration micropores are set on the traditional aeration tube, and then fasteners are installed at the aeration micropores, and then the aeration port is installed on the nozzle of the fastener. The structure of the fastener includes an upper component with a nozzle and a lower component with bent buckle edges on both sides. When in use, a diaphragm is installed in the depression below the nozzle of the upper component, and then the upper component is buckled on the aeration tube, so that the openings of the nozzle, the diaphragm and the aeration micropores on the aeration tube are aligned, and then the bent buckle edges on both sides of the lower component are aligned with the card edges on both sides of the upper component, and the lower component is pushed from the side so that the card edges on both sides are embedded in the bent buckle edges of the lower component. After the lower component is aligned in the upper and lower directions, the upper component and the lower component are fixed to the aeration tube through the bent buckle edges and card edges on both sides. In addition to the above fixing structure, some manufacturers use a lower part without a bent buckle edge and an upper part without a clamping edge to buckle each other, and fix the upper and lower parts through two clamping rings coaxial with the aeration tube. No matter which of the above structures is suitable for aeration tubes with two aeration micropores at an angle of 180 degrees, and the above two structures are fixed in a single direction or a single position, there is a problem of overall structural instability after long-term use. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide an ABR reaction tank aeration pipe double-nozzle membrane structure.

[0004] The technical solution adopted by the utility model to solve the technical problem is:

[0005] An ABR reactor aeration pipe double-nozzle membrane structure comprises an aeration pipe, characterized in that: opposite to all the original aeration micropores on the aeration pipe are arranged opposite to each other aeration micropores, and the angle between the original aeration micropores and the opposite aeration micropores which are opposite to each other is approximately 180 degrees;

[0006] A fastener with a nozzle is fastened on the wall of the original aeration micropore, and a fastener with a nozzle is fastened on the wall of the opposite aeration micropore; the two fasteners are tightly installed with the aeration pipe by means of side clamping and end screwing;

[0007] A membrane is arranged in each nozzle, and the inner diameters of the spray holes of the membrane at all aeration micropores are not all the same.

[0008] Further: the structure of the fastener is: including a base, the bottom surface of the base is arc-shaped and can fit on the outer surface of the aeration pipe; a nozzle is arranged on the base, and clamping edges extending in the direction of the nozzle are respectively arranged on both sides of the radial direction of the base; a diaphragm installation groove is arranged on the bottom surface of the base below the nozzle.

[0009] Further: the clamping method is: two fasteners are buckled on the outer surface of the aeration pipe opposite to each other, and two clamping edges on the same side of the two fasteners are embedded in a fixing frame with two bent buckle edges extending toward each other on the same side surface.

[0010] Further: the screwing method is: the two fasteners are oppositely fastened on the outer surface of the aeration pipe, and the arc-shaped ridges at the same ends of the two fasteners form a complete thread, and a fixing ring is screwed on the complete thread.

[0011] Furthermore: the ends of the two fasteners on the same side are buckled together to form a truncated cone shape, and the arc-shaped convex ridges arranged on the outer surface of the truncated cone form a complete thread.

[0012] Furthermore: a plurality of stops are radially arranged on the outer surfaces of the two fasteners, and the stops are used to support the fixing ring tightened on the complete thread.

[0013] Furthermore: an annular groove is arranged on the surface of the membrane installation groove close to the through hole of the nozzle, and a convex ridge arranged in position on the membrane is embedded in the annular groove; a boss is arranged on the surface of the membrane close to the aeration micropores of the aeration pipe, and the boss is embedded in the aeration micropores.

[0014] Furthermore: the inner diameter of the portion of the spray hole in the membrane close to the spray pipe is smaller than the inner diameter of the portion close to the aeration pipe.

[0015] The technical effects achieved by the utility model are:

[0016] In the utility model, two fasteners each with a nozzle are buckled on the upper surface and the lower surface of the aeration pipe respectively, the clamping edges on both sides of the two fasteners are embedded in the fixing frame together, and the complete threads on the outer surfaces of both ends of the two fasteners are screwed with fixing rings, that is, the middle part and both ends of the fasteners are pressed on the aeration pipe, so that the external pressure on the two fasteners is uniform, and a stable buckling connection is formed between the aeration pipe. The diaphragm installation groove on the bottom surface of the base of the fastener nozzle has an annular groove, and the annular groove and the convex edge set on the inner nozzle press the diaphragm on the surface of the aeration pipe. The inner diameter of the spray hole in the diaphragm boss is larger than the inner diameter of the spray hole inside the part of the diaphragm close to the nozzle, so that the air transported by the aeration pipe can be sprayed out more rapidly in the form of small bubbles, the contact with the sewage is more sufficient, and the disturbance to the sewage is more intense, especially the sewage movement degree at the supporting layer (gravel layer) of the reaction tank is higher, and the risk of a large number of particles and other impurities adhering to the gravel surface is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 AA-direction enlarged cross-sectional view;

[0019] Figure 3 yes Figure 2 BB cross-section diagram. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not restrictive, and the protection scope of the present invention cannot be limited by them.

[0021] A double-nozzle membrane structure of an aeration pipe of an ABR reaction tank includes an aeration pipe 1. As shown in the figure, all the original aeration micropores 19 on the aeration pipe are provided with opposite aeration micropores 22, and the angle between the original aeration micropores and the opposite aeration micropores that are mutually aligned is 180 degrees. A fastener with a nozzle 5 is buckled on the pipe wall of the original aeration micropore, and a fastener with a nozzle is buckled on the pipe wall of the opposite aeration micropore; the two fasteners are tightly installed with the aeration pipe by a side clamping method and a screwing method at the end.

[0022] A diaphragm 12 is arranged in each nozzle, and the inner diameters of the spray holes of the diaphragms at all aeration micropores are not all the same. The inner diameters of the spray holes are not all the same means that the inner diameters of the spray holes of some diaphragms are the same, while the sizes of the inner diameters of the remaining spray holes are different from the inner diameters of the spray holes of some diaphragms. The specific size of the inner diameter can be set according to the requirements of the position of the aeration pipe or according to the aeration amount at a certain point obtained from the calculation data.

[0023] The structure of the fastener is: it includes a base 4, the bottom surface of the base is arc-shaped and can fit on the outer surface of the aeration pipe; a nozzle is arranged on the base, and clamping edges 7 extending toward the nozzle are arranged on both sides of the base in the radial direction; a membrane installation groove 21 is arranged on the bottom surface of the base below the nozzle.

[0024] The side mounting method is as follows Figure 2 As shown: two fasteners are buckled on the outer surface of the aeration pipe in opposite directions, and the two clamping edges on the same side of the two fasteners are embedded in a recess 20 in a fixing frame 6 with two bent buckling edges 9 extending toward each other on the same side surface. In the figure, the adjacent radially extending parts 10 of the two clamping edges are close together, and there can also be a certain gap between the two. As long as the upper and lower clamping edges are embedded in the fixing frame together, the side clamping fixing mode of the two fasteners can be realized.

[0025] The screwing method of the ends is: the two fasteners are oppositely buckled on the outer surface of the aeration pipe, and the arc-shaped ridges of the same ends of the two fasteners form a complete thread, and a fixing ring 2 is screwed on the complete thread. The ends of the two fasteners on the same side are buckled to form a truncated cone shape 8 ( Figure 1 , 3 In order to show it clearly, the angle between the generatrix of the truncated cone and the horizontal plane is relatively large, but actually smaller than that in the figure). The arcuate ridges arranged on the outer surface of the truncated cone form a complete thread, and the inner wall of the threaded hole inside the fixing ring is also arranged as a truncated cone hole type adapted to the shape of the truncated cone and is provided with an internal thread. The arcuate ridges are part of the complete thread, and the extension direction, height and other parameters of the arcuate ridges at both ends of each fastener are the same, so that no matter how the two fasteners are switched in the axial direction of the aeration pipe or no matter how the two fasteners are switched in the radial direction of the aeration pipe, the ends of the two fasteners can form a complete thread after being fastened. In addition, the complete thread parameters enable the fixing ring to rotate into place relatively quickly.

[0026] In order to support the fixing ring, a plurality of stoppers 3 are radially arranged on the outer surface of the fastener beside the complete thread. Both fasteners have stoppers, which support the surface of the fixing ring after the fixing ring is tightened.

[0027] An annular groove 16 is provided on the surface of the through hole 11 of the nozzle near the diaphragm installation groove, and a convex ridge 15 arranged in opposition to the diaphragm 12 is embedded in the annular groove. A boss 18 is provided on the surface of the diaphragm near the aeration micropores (original aeration micropores and opposite aeration micropores) of the aeration tube, and the boss is embedded in the aeration micropores (original aeration micropores and opposite aeration micropores). The convex edge 14 arranged at the end of the nozzle inside the annular groove presses the diaphragm against the surface of the aeration tube, that is, the diaphragm installation groove, the annular groove, the convex edge and the aeration tube cooperate to squeeze the larger diaphragm into the diaphragm installation groove. Figure 2 As shown, the entire nozzle hole 13 in the diaphragm and the boss is close to the nozzle 5 ( Figure 2 The inner diameter of the upper part of the aeration tube is smaller than the inner diameter of the part 17 near the aeration tube. The two spray holes can be arranged up and down as shown in the figure, or arranged in the horizontal left and right directions.

[0028] In the utility model, two fasteners each with a nozzle are buckled on the upper surface and the lower surface of the aeration pipe respectively, the clamping edges on both sides of the two fasteners are embedded in the fixing frame together, and the complete threads on the outer surfaces of both ends of the two fasteners are screwed with fixing rings, that is, the middle part and both ends of the fasteners are pressed on the aeration pipe, so that the external pressure on the two fasteners is uniform, and a stable buckling connection is formed between the aeration pipe. The diaphragm installation groove on the bottom surface of the base of the fastener nozzle has an annular groove, and the annular groove and the convex edge set on the inner nozzle press the diaphragm on the surface of the aeration pipe. The inner diameter of the spray hole in the diaphragm boss is larger than the inner diameter of the spray hole inside the part of the diaphragm close to the nozzle, so that the air transported by the aeration pipe can be sprayed out more rapidly in the form of small bubbles, the contact with the sewage is more sufficient, and the disturbance to the sewage is more intense, especially the sewage movement degree at the supporting layer (gravel layer) of the reaction tank is higher, and the risk of a large number of particles and other impurities adhering to the gravel surface is reduced.

Claims

1. A double-nozzle membrane structure for an aeration pipe of an ABR reaction tank, comprising an aeration pipe, characterized in that: Opposite aeration micropores are arranged opposite to all the original aeration micropores on the aeration tube, and the angle between the mutually opposed original aeration micropores and the opposite aeration micropores is approximately 180 degrees; A fastener with a nozzle is fastened on the wall of the original aeration micropore, and a fastener with a nozzle is fastened on the wall of the opposite aeration micropore; the two fasteners are tightly installed with the aeration pipe by means of side clamping and end screwing; A membrane is arranged in each nozzle, and the inner diameters of the spray holes of the membrane at all aeration micropores are not all the same.

2. The double-nozzle membrane structure of an ABR reaction tank aeration pipe according to claim 1, characterized in that: The structure of the fastener is: including a base, the bottom surface of the base is arc-shaped and can fit the outer surface of the aeration pipe; a nozzle is arranged on the base, and clamping edges extending toward the nozzle are arranged on both sides of the base in the radial direction; a membrane installation groove is arranged on the bottom surface of the base below the nozzle.

3. The double-nozzle membrane structure of an ABR reaction tank aeration pipe according to claim 2 is characterized in that: The clamping method is: two fasteners are buckled on the outer surface of the aeration pipe opposite to each other, and two clamping edges on the same side of the two fasteners are embedded in a fixing frame with two bent buckle edges extending toward each other on the same side surface.

4. The double-nozzle membrane structure of an ABR reaction tank aeration pipe according to claim 2, characterized in that: The screwing method is: two fasteners are oppositely fastened on the outer surface of the aeration pipe, and the arc-shaped ridges at the same ends of the two fasteners form a complete thread, and a fixing ring is screwed on the complete thread.

5. The double-nozzle membrane structure of an ABR reaction tank aeration pipe according to claim 4 is characterized in that: The ends of the two fasteners on the same side are buckled together to form a truncated cone shape, and the arc-shaped convex ridges arranged on the outer surface of the truncated cone form a complete thread.

6. The double-nozzle membrane structure of an ABR reaction tank aeration pipe according to claim 4 or 5, characterized in that: A plurality of stoppers are radially arranged on the outer surfaces of the two fasteners, and the stoppers are used to support the fixing rings tightened on the complete threads.

7. The double-nozzle membrane structure of an ABR reaction tank aeration pipe according to claim 2, 3, 4 or 5, characterized in that: The membrane installation groove is provided with an annular groove on the surface close to the through hole of the nozzle, and the convex ridges arranged in the annular groove are embedded in the membrane; the membrane is provided with a boss on the surface close to the aeration micropores of the aeration pipe, and the boss is embedded in the aeration micropores.

8. The double-nozzle membrane structure of an ABR reaction tank aeration pipe according to claim 6, characterized in that: The membrane installation groove is provided with an annular groove on the surface close to the through hole of the nozzle, and the convex ridges arranged in the annular groove are embedded in the membrane; the membrane is provided with a boss on the surface close to the aeration micropores of the aeration pipe, and the boss is embedded in the aeration micropores.

9. The double-nozzle membrane structure of an ABR reaction tank aeration pipe according to claim 2 or 3 or 4 or 5 or 8, characterized in that: The inner diameter of the portion of the spray hole in the membrane close to the spray pipe is smaller than the inner diameter of the portion close to the aeration pipe.

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