Aerobic tank foam collection and defoaming device

Abstract

This invention relates to the field of aerobic pond defoaming technology and discloses an aerobic pond foam collection and defoaming device, including a pond body and at least one set of bubble-absorbing floats. A guide rod, matching the number of bubble-absorbing floats, is fixedly connected inside the pond body, and the bubble-absorbing floats are slidably mounted on the guide rods. A defoaming chamber, matching the number of bubble-absorbing floats, is fixedly mounted on the outer wall of the pond body. The defoaming chamber contains a defoaming part that uses centrifugal and shearing forces to tear apart bubbles. This invention drives a piston plate to slide back and forth via an eccentric shaft, bearing ring, and connecting rod, drawing defoamer from the storage tank into the piston chamber and outputting it along symmetrically arranged spray pipes, forming an atomized curtain wall perpendicular to the foam injection direction. This ensures that the foam entering the defoaming chamber first comes into full contact with the atomized defoamer, and then is further broken by the centrifugal shearing action of the defoaming turbine. Simultaneously, the escaping bubbles are eliminated by the high-frequency vibration cutting blades at the bottom, forming a multi-stage synergistic defoaming system that greatly improves defoaming efficiency and effectiveness.

Description

Technical Field

[0001] This invention relates to the field of aerobic pond defoaming technology, specifically to an aerobic pond foam collection and defoaming device. Background Technology

[0002] Aerobic biological treatment is one of the most commonly used processes in wastewater treatment. In an aerobic tank, sufficient dissolved oxygen is supplied to the wastewater through an aeration system. The metabolic action of aerobic microorganisms decomposes organic pollutants in the wastewater into carbon dioxide and water, thereby achieving water purification. In actual operation, a large amount of foam often forms on the surface of the aerobic tank, especially when the wastewater contains surfactants, the sludge age is too long, or the aeration intensity is too high.

[0003] Currently, existing mechanical defoaming devices still have many shortcomings in practical applications: First, existing defoaming devices usually only use a single defoaming method, such as relying solely on centrifugal shearing or solely on spraying defoaming agents. The defoaming path is singular, the ability to break up foam is limited, and a large number of escaped bubbles are made, making it difficult to completely eliminate foam. Second, the liquid level in the aerobic tank is not constant. It is affected by factors such as influent flow rate, drainage cycle, and evaporation rate, and the liquid level will fluctuate frequently. The suction ports of existing bubble suction devices are mostly fixed installations and cannot automatically adjust the suction height according to the liquid level. This causes the suction ports to detach from the foam layer and fail when the liquid level drops, and easily suck in a large amount of liquid when the liquid level rises, reducing defoaming efficiency and causing sludge loss. Summary of the Invention

[0004] This invention provides an aerobic tank foam collection and defoaming device. Through the linkage of an eccentric shaft, bearing ring, and connecting rod, a piston plate reciprocates, discharging defoamer from the storage tank along a spray pipe to form an atomized curtain perpendicular to the foam's incident direction. This ensures that the foam entering the defoaming chamber first comes into full contact with the atomized defoamer, and then undergoes secondary crushing and tearing of the bubbles by the centrifugal shearing action of the defoaming turbine. Simultaneously, the escaping bubbles are eliminated by the high-frequency vibrating cutting blades at the bottom. This solves the problem mentioned in the background art where existing equipment uses a single defoaming method, relying solely on centrifugal shearing or spraying defoamer, resulting in limited foam breaking capacity and difficulty in achieving complete foam elimination.

[0005] This invention provides the following technical solution:

[0006] An aerobic pool foam collection and defoaming device includes a pool body and further includes: at least one set of bubble-absorbing floats, with guide rods fixedly connected to the pool body in a manner matching the number of bubble-absorbing floats, the bubble-absorbing floats being slidably mounted on the guide rods; a defoaming chamber in a manner matching the number of bubble-absorbing floats, the defoaming chamber being fixedly mounted on the outer wall of the pool body, the defoaming chamber containing a defoaming part that uses centrifugal and shearing action to tear apart bubbles; and an auxiliary defoaming part, mounted on the outer wall of the defoaming chamber, for spraying defoaming agent onto the foam entering the defoaming chamber.

[0007] As a preferred embodiment of the present invention, the bubble-absorbing floating plate has multiple sets of bubble-absorbing grooves on its side wall, a bubble-absorbing ring is fixedly connected to the center of the bubble-absorbing groove, the guide rod passes through the center of the bubble-absorbing ring and is slidably connected to it, multiple sets of bubble-absorbing holes are opened at the bottom of the bubble-absorbing ring and communicate with its inner cavity, the top of the defoaming chamber is fixed and connected to a bubble-absorbing tube, and the other end of the bubble-absorbing tube is connected to the inner cavity of the bubble-absorbing ring.

[0008] As a preferred embodiment of the present invention, the defoaming part includes a defoaming shaft, which is rotatably connected to the inner top of the defoaming chamber. At least one set of defoaming turbines is fixedly installed on the outer wall of the defoaming shaft. A defoaming motor is fixedly connected to the top of the defoaming chamber, and the output end of the defoaming motor is fixedly connected to the top end of the defoaming shaft.

[0009] As a preferred embodiment of the present invention, each impeller of the defoaming turbine has multiple sets of protrusions on its contact surface with the foam.

[0010] As a preferred embodiment of the present invention, the bottom of the defoaming chamber is fixed and connected to a return pipe, the output end of the return pipe is connected to the inner cavity of the tank, and a one-way valve is installed on the return pipe. The bubble suction pipe and the return pipe are located above and below the defoaming turbine, respectively.

[0011] As a preferred embodiment of the present invention, the auxiliary defoaming unit includes a piston chamber, which is fixedly connected to the upper side wall of the defoaming chamber. A piston plate is slidably connected inside the piston chamber. Both sides of the piston chamber are fixed and connected to spray pipes. The output end of the spray pipe extends into the defoaming chamber, and a one-way valve is provided inside the spray pipe. The output ends of the two sets of spray pipes are symmetrically arranged along the center of the output end of the bubble suction pipe, that is, the line connecting the output ends of the two sets of spray pipes is perpendicular to the extension line of the output end of the bubble suction pipe.

[0012] As a preferred embodiment of the present invention, an eccentric shaft is installed on the upper section of the defoaming shaft, a bearing ring is rotatably connected to the eccentric shaft, a connecting rod is hinged to the piston plate on the side facing the eccentric shaft, and the other end of the connecting rod is fixedly connected to the side wall of the bearing ring.

[0013] As a preferred embodiment of the present invention, a liquid storage chamber is fixedly connected to the outer wall of the defoaming chamber, and a liquid replenishment pipe is fixedly connected to the outer wall of the piston chamber. The other end of the liquid replenishment pipe extends to the bottom of the inner cavity of the liquid storage chamber, and a one-way valve is provided inside the liquid replenishment pipe.

[0014] As a preferred embodiment of the present invention, a plurality of vertical cutting blades are installed at equal intervals along the circumference of the lower inner wall of the defoaming chamber. An elastic sheet is fixedly connected to the side of the vertical cutting blades facing the center of the defoaming chamber. A striking rod is fixedly connected to the bottom end of the defoaming shaft. The striking rod is adapted to the elastic sheet.

[0015] As a preferred embodiment of the present invention, one section of the bubble suction tube is provided as a flexible tube to accommodate the bubble suction float to rise and fall along the guide rod.

[0016] Compared with the prior art, the present invention provides a foam collection and defoaming device for aerobic ponds, which has the following beneficial effects:

[0017] 1. In this aerobic tank foam collection and defoaming device, the piston plate is driven to slide back and forth through the linkage of the eccentric shaft, bearing ring and connecting rod. The defoamer in the storage tank is sucked into the piston chamber and output along the symmetrically arranged spray pipes, forming an atomized curtain wall perpendicular to the foam incident direction. This allows the foam entering the defoaming chamber to first come into full contact with the atomized defoamer, achieving rapid foam breaking. Then, the foam is further broken and torn apart by the centrifugal shearing action of the defoaming turbine. At the same time, the escaped bubbles are eliminated by the high-frequency vibration cutting blades at the bottom, forming a multi-stage synergistic defoaming system, which greatly improves the defoaming efficiency and effect.

[0018] 2. In this aerobic pool foam collection and defoaming device, the foam suction height is adaptively adjusted by the sliding cooperation between the foam suction float and the guide rod, utilizing the buoyancy of the liquid surface. In addition, the negative pressure suction generated by the rotation of the defoaming turbine draws the foam into the defoaming chamber along the foam suction groove, foam suction ring and foam suction pipe. No manual intervention is required to adjust the foam suction height, achieving efficient and automated foam collection, which significantly improves the convenience and stability of the defoaming operation. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a partial three-dimensional schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the bubble-absorbing floating disk structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the defoaming chamber of the present invention;

[0024] Figure 5 For the present invention Figure 4Enlarged structural diagram of region A in the middle;

[0025] Figure 6 For the present invention Figure 4 Enlarged structural diagram of region B in the middle;

[0026] Figure 7 This is a schematic diagram of the internal cross-sectional structure of the piston chamber of the present invention;

[0027] Figure 8 This is a schematic diagram of the installation structure of the vertical cutting plate and the elastic plate of the present invention.

[0028] In the diagram: 1. Pool body; 2. Bubble-absorbing float; 21. Guide rod; 22. Bubble-absorbing tank; 23. Bubble-absorbing ring; 24. Bubble-absorbing hole; 3. Defoaming chamber; 31. Bubble-absorbing pipe; 32. Return pipe; 33. Vertical cutting blade; 34. Elastic plate; 4. Defoaming shaft; 41. Defoaming turbine; 42. Defoaming motor; 43. Spike; 44. Striking rod; 5. Piston chamber; 51. Piston plate; 52. Spray pipe; 53. Liquid storage chamber; 54. Liquid replenishment pipe; 6. Eccentric shaft; 61. Bearing ring; 62. Connecting rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Reference Figures 1-8 An aerobic pool foam collection and defoaming device includes a pool body 1, and further includes: at least one set of bubble-absorbing floats 2, with guide rods 21 fixedly connected inside the pool body 1 in a manner matching the number of bubble-absorbing floats 2, the bubble-absorbing floats 2 being slidably mounted on the guide rods 21. In this embodiment, four sets of bubble-absorbing floats 2 are provided, and are respectively located at the four corners of the pool body 1; a defoaming chamber 3 in a manner matching the number of bubble-absorbing floats 2, the defoaming chamber 3 being fixedly mounted on the outer wall of the pool body 1, and a defoaming part installed inside the defoaming chamber 3 that uses centrifugal and shearing action to tear up bubbles; and an auxiliary defoaming part, which is installed on the outer wall of the defoaming chamber 3 and is used to spray defoaming agent on the foam entering the defoaming chamber 3.

[0031] Reference Figures 1-4 and Figure 7The bubble-absorbing floating plate 2 has multiple sets of bubble-absorbing grooves 22 on its side wall. A bubble-absorbing ring 23 is fixedly connected to the center of the bubble-absorbing groove 22. A guide rod 21 passes through the center of the bubble-absorbing ring 23 and is slidably connected to it. Multiple sets of bubble-absorbing holes 24 are opened at the bottom of the bubble-absorbing ring 23 and are connected to its inner cavity. A bubble-absorbing tube 31 is fixed to the top of the defoaming chamber 3 and is connected to it. The other end of the bubble-absorbing tube 31 is connected to the inner cavity of the bubble-absorbing ring 23, and one section of the bubble-absorbing tube 31 is set as a flexible tube to adapt to the bubble-absorbing floating plate 2 rising and falling along the guide rod 21. The defoaming part includes a defoaming shaft 4, which is rotatably connected to the inner top of the defoaming chamber 3. At least one set of defoaming turbines 41 are fixedly installed on the outer wall of the defoaming shaft 4. In this embodiment, two sets of defoaming turbines 41 are provided. Each set of defoaming turbines 41 has multiple sets of protrusions 43 on the contact surface between the impeller and the foam. A defoaming motor 42 is fixedly connected to the top of the defoaming chamber 3. The output end of the defoaming motor 42 is fixedly connected to the top of the defoaming shaft 4. A return pipe 32 is fixedly connected to the bottom of the defoaming chamber 3. The output end of the return pipe 32 is connected to the inner cavity of the pool body 1. A one-way valve is installed on the return pipe 32. The bubble suction pipe 31 and the return pipe 32 are located above and below the defoaming turbines 41, respectively.

[0032] With the above-described structure, the defoaming motor 42 is activated, causing the defoaming turbine 41 to rotate rapidly within the defoaming chamber 3. At this time, a negative pressure suction force is generated on the side near the output end of the suction tube 31, and this force is transmitted into the suction tube 31. Due to the buoyancy of the liquid in the pool 1, the suction float 2 floats on the liquid surface. The negative pressure suction force within the suction tube 31 is transmitted to the suction ring 23, generating a corresponding negative pressure suction force within the suction float 2. This causes the foam floating on the liquid surface to enter the suction ring along the suction channels 22. Inside the 23, the foam then enters the defoaming chamber 3 along the suction pipe 31; subsequently, the foam passes through the rapidly rotating defoaming turbine 41. At this time, the high-speed rotating defoaming turbine 41 generates strong centrifugal force and shear force, which quickly tears the foam and throws the liquid after the foam is broken onto the inner wall of the defoaming chamber 3. Under the positive pressure thrust generated on the other side of the defoaming turbine 41 and the gravity of the liquid itself, the liquid slides down to the bottom of the defoaming chamber 3, effectively preventing the "liquid escape" phenomenon caused by excessive foam in the tank 1, ensuring the stability of sewage treatment and the cleanliness of the treatment area.

[0033] Furthermore, since each impeller of the defoaming turbine 41 has multiple sets of spikes 43 on its contact surface with the foam, the spikes 43 can exert a strong mechanical piercing and tearing effect on the foam during the rapid rotation of the defoaming turbine 41. This can quickly break the surface liquid film tension of the foam, causing it to lose its structural support and rupture rapidly, thereby effectively improving the defoaming efficiency.

[0034] In addition, by setting up the bubble-absorbing float 2 and the guide rod 21, the bubble-absorbing height can be adaptively adjusted according to the different liquid levels in the pool 1. That is, the bubble-absorbing float 2 will always float on the liquid surface without the need for manual adjustment of the bubble-absorbing height, which effectively improves the convenience of defoaming.

[0035] Reference Figure 4 , Figure 5 and Figure 7 The auxiliary defoaming unit includes a piston chamber 5, which is fixedly connected to the upper side wall of the defoaming chamber 3. A piston plate 51 is slidably connected inside the piston chamber 5. Both sides of the piston chamber 5 are fixed and connected to spray pipes 52. The output end of the spray pipe 52 extends into the defoaming chamber 3, and a one-way valve is installed inside the spray pipe 52. The output ends of the two sets of spray pipes 52 are symmetrically arranged along the center of the output end of the bubble suction pipe 31, that is, the line connecting the output ends of the two sets of spray pipes 52 is an extension of the output end of the bubble suction pipe 31. The line is vertical; an eccentric shaft 6 is installed on the upper section of the defoaming shaft 4, and a bearing ring 61 is rotatably connected to the eccentric shaft 6. A connecting rod 62 is hinged to the side of the piston plate 51 facing the eccentric shaft 6, and the other end of the connecting rod 62 is fixedly connected to the side wall of the bearing ring 61; a liquid storage tank 53 is fixedly connected to the outer wall of the defoaming chamber 3, and a liquid replenishment pipe 54 is fixedly connected to the outer wall of the piston chamber 5. The other end of the liquid replenishment pipe 54 extends to the bottom of the inner cavity of the liquid storage tank 53, and a one-way valve is installed in the liquid replenishment pipe 54.

[0036] It should be noted that the one-way valve in the spray pipe 52 can only allow the defoamer in the piston chamber 5 to be sprayed out along the spray pipe 52; the one-way valve in the replenishment pipe 54 can only allow the defoamer in the storage chamber 53 to enter the piston chamber 5.

[0037] With the above structure, during the rotation of the defoaming shaft 4, the piston plate 51 will slide back and forth in the piston chamber 5 through the coordination of the eccentric shaft 6, bearing ring 61 and connecting rod 62. When the piston plate 51 slides towards the side closer to the defoaming shaft 4, a negative pressure suction will be generated in the piston chamber 5, and the one-way valve in the replenishment pipe 54 will be opened, so that the defoamer in the storage tank 53 will be sucked into the piston chamber 5. Then, when the piston plate 51 slides in the opposite direction, it will squeeze the defoamer sucked into the piston chamber 5 and push open the one-way valve in the spray pipe 52, so that the defoamer will be output along the spray pipes 52 on both sides and form an atomized curtain perpendicular to the output end of the suction pipe 31. At this time, when the foam enters the defoaming chamber 3 along the suction pipe 31, it will come into contact with the atomized curtain formed by the defoamer, so that the foam reacts with the defoamer in a very short time with a large contact area, rapidly reducing the surface tension of the bubbles and achieving second-level bubble breaking. Combined with the subsequent centrifugal shearing action, the defoaming efficiency and effect are further improved.

[0038] Reference Figure 4 , Figure 8The lower part of the inner wall of the defoaming chamber 3 is equipped with multiple sets of vertical cutting blades 33 at equal intervals along its circumference. An elastic sheet 34 is fixedly connected to the side of the vertical cutting blades 33 facing the center of the defoaming chamber 3. A striking rod 44 is fixedly connected to the bottom end of the defoaming shaft 4. The striking rod 44 is adapted to the elastic sheet 34.

[0039] With the above structure, the liquid that slides down the inner wall of the defoaming chamber 3 and some of the escaped foam will enter the defoaming area composed of multiple sets of vertical cutting blades 33 and elastic plates 34. At this time, during the rotation of the defoaming shaft 4, the striking rod 44 will continuously strike each set of elastic plates 34, thereby generating a high-frequency vibration effect in this defoaming area, further eliminating the escaped bubbles and accelerating the rapid fall of the liquid, effectively improving the defoaming efficiency.

[0040] Reference Figures 1-8 In this invention, during use, the defoaming motor 42 is turned on, causing it to drive the defoaming turbine 41 to rotate rapidly within the defoaming chamber 3. At this time, a negative pressure suction force is generated on the side near the output end of the suction tube 31, and this force is transmitted into the suction tube 31. Due to the buoyancy of the liquid in the pool 1, the suction float 2 floats on the liquid surface. The negative pressure suction force within the suction tube 31 is transmitted to the suction ring 23, generating a corresponding negative pressure suction force within the suction float 2. This causes the foam floating on the liquid surface to enter the suction ring 23 along the suction channels 22, and then enter the defoaming chamber 3 along the suction tube 31. Subsequently, the foam passes through the rapidly rotating defoaming turbine 41. The moving defoaming turbine 41 generates strong centrifugal and shear forces, which quickly tear up the foam and throw the broken foam liquid onto the inner wall of the defoaming chamber 3. Under the positive pressure thrust generated on the other side of the defoaming turbine 41 and the gravity of the liquid itself, it slides down to the bottom of the defoaming chamber 3, effectively preventing the "liquid escape" phenomenon caused by excessive foam in the tank 1, ensuring the stability of sewage treatment and the cleanliness of the treatment area. In addition, the positive pressure thrust continuously generated by the defoaming turbine 41 will open the one-way valve in the return pipe 32, so that the defoamed liquid flows back into the tank 1, preventing the loss of microbial population in the tank 1, effectively maintaining the stability of the biological system in the tank 1, and ensuring the treatment effect of the tank 1.

[0041] Meanwhile, as the defoaming shaft 4 rotates, the piston plate 51 reciprocates within the piston chamber 5 through the coordinated action of the eccentric shaft 6, bearing ring 61, and connecting rod 62. When the piston plate 51 slides towards the side closer to the defoaming shaft 4, it generates negative pressure suction within the piston chamber 5 and opens the one-way valve in the replenishment pipe 54, allowing the defoamer in the storage tank 53 to be drawn into the piston chamber 5. Subsequently, when the piston plate 51 slides in the reverse direction, it squeezes the defoamer drawn into the piston chamber 5 and opens the one-way valve in the spray pipe 52, causing the defoamer to be output along both spray pipes 52 and forming an atomized curtain perpendicular to the output end of the suction pipe 31. When the foam enters the defoaming chamber 3 along the suction pipe 31, it comes into contact with the atomized curtain formed by the defoamer, causing the foam to react with the defoamer in a very short time with a large contact area, rapidly reducing the surface tension of the bubbles and achieving bubble breaking in seconds. Combined with the subsequent centrifugal shearing action, this further improves the defoaming efficiency and effect.

[0042] In addition, the liquid that slides down the inner wall of the defoaming chamber 3 and some of the escaped foam will enter the defoaming area composed of multiple sets of vertical cutting blades 33 and elastic plates 34. At this time, during the rotation of the defoaming shaft 4, the striking rod 44 will continuously strike each set of elastic plates 34, thereby generating a high-frequency vibration effect in this defoaming area, further eliminating the escaped bubbles and accelerating the rapid fall of the liquid, effectively improving the defoaming efficiency.

[0043] Components not described in detail in this article are existing technologies.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aerobic pool foam collection and defoaming device, comprising a pool body (1), characterized in that, Also includes: At least one set of bubble-absorbing floats (2), and a guide rod (21) matching the number of bubble-absorbing floats (2) is fixedly connected inside the pool body (1), and the bubble-absorbing floats (2) are slidably installed on the guide rod (21); A defoaming chamber (3) is provided in a number that matches the number of bubble-absorbing floating discs (2). The defoaming chamber (3) is fixedly installed on the outer wall of the pool body (1). The defoaming chamber (3) is equipped with a defoaming part that uses centrifugal and shearing action to tear up bubbles. The auxiliary defoaming section is installed on the outer wall of the defoaming chamber (3) and is used to spray defoaming agent on the foam entering the defoaming chamber (3).

2. The aerobic pool foam collection and defoaming device according to claim 1, characterized in that, The bubble-absorbing floating plate (2) has multiple sets of bubble-absorbing grooves (22) on its side wall. A bubble-absorbing ring (23) is fixedly connected to the center of the bubble-absorbing groove (22). The guide rod (21) passes through the center of the bubble-absorbing ring (23) and is slidably connected to it. Multiple sets of bubble-absorbing holes (24) are opened at the bottom of the bubble-absorbing ring (23) and are connected to its inner cavity. The top of the defoaming chamber (3) is fixed and connected to a bubble-absorbing tube (31). The other end of the bubble-absorbing tube (31) is connected to the inner cavity of the bubble-absorbing ring (23).

3. The aerobic pool foam collection and defoaming device according to claim 2, characterized in that, The defoaming section includes a defoaming shaft (4), which is rotatably connected to the inner top of the defoaming chamber (3). At least one set of defoaming turbines (41) is fixedly installed on the outer wall of the defoaming shaft (4). A defoaming motor (42) is fixedly connected to the top of the defoaming chamber (3), and the output end of the defoaming motor (42) is fixedly connected to the top of the defoaming shaft (4).

4. The aerobic pool foam collection and defoaming device according to claim 3, characterized in that, The defoaming turbine (41) has multiple sets of protrusions (43) on each impeller contact surface with the foam.

5. The aerobic pool foam collection and defoaming device according to claim 3, characterized in that, The bottom of the defoaming chamber (3) is fixed and connected to a return pipe (32). The output end of the return pipe (32) is connected to the inner cavity of the pool body (1). A one-way valve is installed on the return pipe (32). The bubble suction pipe (31) and the return pipe (32) are located above and below the defoaming turbine (41), respectively.

6. The aerobic pool foam collection and defoaming device according to claim 3, characterized in that, The auxiliary defoaming unit includes a piston chamber (5), which is fixedly connected to the upper side wall of the defoaming chamber (3). A piston plate (51) is slidably connected inside the piston chamber (5). Both sides of the piston chamber (5) are fixed and connected to spray pipes (52). The output end of the spray pipe (52) extends into the defoaming chamber (3), and a one-way valve is provided inside the spray pipe (52). The output ends of the two sets of spray pipes (52) are symmetrically arranged along the center of the output end of the bubble suction pipe (31), that is, the line connecting the output ends of the two sets of spray pipes (52) is perpendicular to the extension line of the output end of the bubble suction pipe (31).

7. The aerobic pool foam collection and defoaming device according to claim 6, characterized in that, An eccentric shaft (6) is installed on the upper section of the defoaming shaft (4). A bearing ring (61) is rotatably connected to the eccentric shaft (6). A connecting rod (62) is hinged to the side of the piston plate (51) facing the eccentric shaft (6). The other end of the connecting rod (62) is fixedly connected to the side wall of the bearing ring (61).

8. The aerobic pool foam collection and defoaming device according to claim 6, characterized in that, A liquid storage tank (53) is fixedly connected to the outer wall of the defoaming chamber (3), and a liquid replenishment pipe (54) is fixedly connected to the outer wall of the piston chamber (5). The other end of the liquid replenishment pipe (54) extends to the bottom of the inner cavity of the liquid storage tank (53), and a one-way valve is provided in the liquid replenishment pipe (54).

9. The aerobic pool foam collection and defoaming device according to claim 3, characterized in that, The lower part of the inner wall of the defoaming chamber (3) is equipped with multiple sets of vertical cutting blades (33) at equal intervals along its circumference. An elastic sheet (34) is fixedly connected to the side of the vertical cutting blades (33) facing the center of the defoaming chamber (3). A striking rod (44) is fixedly connected to the bottom end of the defoaming shaft (4). The striking rod (44) is adapted to the elastic sheet (34).

10. The aerobic pool foam collection and defoaming device according to claim 2, characterized in that, One section of the bubble suction tube (31) is made of a flexible tube to accommodate the bubble suction float (2) as it moves up and down along the guide rod (21).

Images