Micro bubble pump for water treatment and bubble generation method thereof

Abstract

The invention provides a micro bubble pump for water treatment and a bubble generation method thereof, and belongs to the technical field of bubble pumps, the micro bubble pump comprises a rotating power system, a central water inlet cylinder and a plurality of pressurizing systems, each pressurizing system comprises a pressurizing pipe, a centrifugal pressurizing device and a filtering dredging device, and each pressurizing pipe is mounted on the periphery of the central water inlet cylinder; a plurality of first filtering holes are formed in the central water inlet cylinder and communicated with the corresponding pressurizing pipes, the central water inlet cylinder is installed at the output end of the rotating power system, the centrifugal pressurizing devices are installed at the ends, farthest from the central water inlet cylinder, of the pressurizing pipes, and the filtering dredging devices are installed on the pressurizing pipes; a plurality of microbubble outlets are formed in the end, farthest away from the central water inlet cylinder, of the pressurizing pipe, the centrifugal pressurizing device extrudes towards the microbubble outlets under the action of centripetal force, the filtering and dredging device is in transmission connection with the centrifugal pressurizing device, water flow unidirectionally flows to the side close to the microbubble outlets through the centrifugal pressurizing device, and continuous bubbles can be conveniently generated in sewage.

Description

Technical Field

[0001] The invention belongs to the technical field of bubble pumps, and in particular relates to a micro bubble pump for water treatment and a bubble generating method thereof. Background Art

[0002] Compared with the traditional flotation method of injecting macro bubbles to treat sewage, the micron bubble water treatment technology injects micron bubbles into the water body. Due to the reduction in bubble volume, the retention time and surface area of ​​the bubbles in the water body increase by tens of thousands of times, greatly improving the separation efficiency of suspended matter in the water body. In addition, the micron bubbles have good dispersion and have a significant effect on increasing the dissolved oxygen content in the water body, which is beneficial to the degradation activity of aerobic bacteria in the water body, which is particularly important for improving water quality and inhibiting eutrophication of water bodies.

[0003] The key to micron bubble water treatment technology is how to efficiently and cheaply generate micron bubbles. The existing principle of micron bubble generation is to initially mix gas and water, then pressurize the mixed gas and water. Due to the increased pressure, the gas dissolves in the water, and finally the dissolved gas is depressurized, and the dissolved gas escapes from the water to form a large number of fine bubbles. Since there are a lot of fiber pollutants in sewage, pressure needs to pass through micro holes, which are easy to clog, thus reducing the existing micro bubble generation efficiency. Summary of the invention

[0004] The invention provides a micro bubble pump for water treatment and a bubble generating method thereof, which are convenient for generating continuous bubbles in sewage.

[0005] The present invention provides a micro-bubble pump for water treatment, comprising a rotating power system, a central water inlet cylinder and a plurality of pressurizing systems, each of the pressurizing systems comprising a pressurizing pipe, a centrifugal pressurizing device and a filtering and dredging device, each of the pressurizing pipes being installed around the central water inlet cylinder, the central water inlet cylinder being provided with a plurality of first filtering holes, each of the first filtering holes being connected to a corresponding pressurizing pipe, the central water inlet cylinder being installed at the output end of the rotating power system, the centrifugal pressurizing device being installed at the end of the pressurizing pipe farthest from the central water inlet cylinder, the filtering and dredging device being installed on the pressurizing pipe, the end of the pressurizing pipe farthest from the central water inlet cylinder being provided with a plurality of micro-bubble outlets, the centrifugal pressurizing device being squeezed toward the micro-bubble outlets under the action of centripetal force, the filtering and dredging device being transmission-connected to the centrifugal pressurizing device, and water flows through the centrifugal pressurizing device in a unidirectional manner toward a side close to the micro-bubble outlets.

[0006] Preferably, a plurality of pressurized air supply systems are installed on the inner side wall of the pressurized pipe, and each of the pressurized air supply systems includes a pressurized air supply plate and a pressurized air pipe. The pressurized air supply plate is rotatably installed on the inner side wall of the central water inlet cylinder through the pressurized air pipe. A resistance plate is provided on the pressurized air supply plate, and the resistance plate drives the pressurized air supply plate to rotate. The contact position between the pressurized air supply plate and the central water inlet cylinder is located on both sides of the corresponding first filter hole.

[0007] Preferably, the pressurized pipe is of streamlined design.

[0008] Preferably, the centrifugal pressurizing device includes a centrifugal piston, a centrifugal rod, a centrifugal return spring and a centrifugal counterweight, the centrifugal piston is provided with a one-way valve, the water flow of the one-way valve flows unidirectionally to the side close to the microbubble outlet, the centrifugal piston is slidably mounted on the pressurizing tube, the centrifugal rod is mounted on the centrifugal piston, the centrifugal counterweight is mounted on the centrifugal rod, a microbubble plate is provided at the end of the pressurizing tube farthest from the center water inlet cylinder, the microbubble outlet is located on the microbubble plate, both ends of the centrifugal return spring are mounted between the microbubble plate and the centrifugal piston, and the direction of action of the centrifugal return spring causes the centrifugal piston to move in a direction away from the microbubble plate.

[0009] Preferably, the filter dredging device includes a filter plate and a filter dredging device, the filter dredging device includes a filter piston and a plurality of dredging rods, the filter plate is provided with a plurality of second filter holes, each of the dredging rods is installed on the filter piston, each of the dredging rods slides along the corresponding second filter hole, and the filter piston is installed on the centrifugal pressurizing device through a traction rope.

[0010] Preferably, a magnet that attracts the filter plate is provided near one side of the filter piston plate.

[0011] Preferably, the rotary power system has forward and reverse rotation functions.

[0012] A method for generating bubbles using a micro-bubble pump for water treatment, using the micro-bubble pump for water treatment, is characterized by comprising the following steps: S1: Air is introduced into the central water inlet cylinder to start the rotation power system; S2: The centrifugal pressurizing device is driven by the rotation of the central water inlet cylinder, and the water flows through the centrifugal pressurizing device in one direction toward the side close to the microbubble outlet; S3: The air is dissolved faster under the pressure of the centrifugal pressurizing device. After the water flows through the microbubble outlet, the pressure suddenly disappears and the air dissolved in the water escapes.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Each pressurizing tube is installed around the central water inlet cylinder, and a plurality of first filter holes are provided on the central water inlet cylinder, and each first filter hole is connected to the corresponding pressurizing tube. The central water inlet cylinder is installed at the output end of the rotating power system, and the centrifugal pressurizing device is installed at the end of the pressurizing tube farthest from the central water inlet cylinder. The filtering and unblocking device is installed on the pressurizing tube, and a plurality of microbubble outlets are provided at the end of the pressurizing tube farthest from the central water inlet cylinder. In this way, when the central water inlet cylinder rotates, the water flows toward the microbubble outlet under the action of centripetal force. After the water flows through the microbubble outlet, the air in the water escapes, and the centrifugal pressurizing device squeezes the water toward the microbubble outlet under the action of centripetal force. The centrifugal pressurizing device pressurizes the water flow, so that the air is accelerated to dissolve into the water. The filtering and unblocking device is connected to the centrifugal pressurizing device by transmission, thereby ensuring the smooth flow of the filtering and unblocking device. The water flows through the centrifugal pressurizing device in one direction to the side close to the microbubble outlet, so that the centrifugal pressurizing device can retreat, which is convenient for the continuous generation of microbubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the installation position structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the present invention as a whole during the speed-up process.

[0017] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0018] Figure 4 for Figure 2 Enlarged schematic diagram of point B in the middle.

[0019] Figure 5 It is a structural schematic diagram when the rotation speed reaches the maximum of the present invention.

[0020] Figure 6 for Figure 5 Enlarged schematic diagram at point C in the middle.

[0021] Figure 7 It is a structural schematic diagram of the present invention when the rotation speed is minimum.

[0022] Figure 8 for Figure 7 Enlarged schematic diagram at point D in the middle.

[0023] Fig. 9 This is a schematic diagram of the central water inlet cylinder structure.

[0024] Fig.10 This is a top view of the central water inlet cylinder structure.

[0025] Fig.11 This is a schematic diagram of the structure of the pressurized air supply system.

[0026] Reference numerals: 1. Rotational power system; 2. Central water inlet cylinder; 21. First filter hole; 3. Pressurization system; 31. Pressurization pipe; 311. Microbubble outlet; 32. Centrifugal pressurization device; 321. Centrifugal piston; 322. Centrifugal rod; 3211. One-way valve; 323. Centrifugal return spring; 324. Centrifugal weight; 33. Filter dredging device; 331. Filter plate; 332. Filter dredging device; 3321. Filter piston; 3322. Dredging rod; 3323. Magnet; 34. Towing rope; 4. Pressurized air supply system; 41. Pressurized air supply plate; 42. Pressurized air pipe; 43. Resistance plate; 5. Sink. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The term "first" or "second" in the specification and claims of the present application may include one or more of the features explicitly or implicitly. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0029] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figure 1 — Fig.11 As shown, the present embodiment provides a micro-bubble pump for water treatment, including a rotating power system 1, a central water inlet cylinder 2 and a plurality of pressurizing systems 3, each pressurizing system 3 includes a pressurizing pipe 31, a centrifugal pressurizing device 32 and a filtering and dredging device 33, each pressurizing pipe 31 is installed around the central water inlet cylinder 2, the central water inlet cylinder 2 is provided with a plurality of first filtering holes 21, each first filtering hole 21 is connected to the corresponding pressurizing pipe 31, the central water inlet cylinder 2 is installed at the output end of the rotating power system 1, the centrifugal pressurizing device 32 is installed at the end of the pressurizing pipe 31 farthest from the central water inlet cylinder 2, the filtering and dredging device 33 is installed on the pressurizing pipe 31, and the end of the pressurizing pipe 31 farthest from the central water inlet cylinder 2 is provided with a There are a plurality of microbubble outlets 311, so that when the central water inlet cylinder 2 rotates, the water flows toward the microbubble outlet 311 under the action of centripetal force. After the water flows through the microbubble outlet 311, the air in the water escapes, and the centrifugal pressurizing device 32 squeezes toward the microbubble outlet 311 under the action of centripetal force. The centrifugal pressurizing device 32 pressurizes the water flow, so that the air is accelerated to dissolve into the water. The filtering and unblocking device 33 is transmission-connected to the centrifugal pressurizing device 32, thereby ensuring the unobstructed flow of the filtering and unblocking device 33. The water flows through the centrifugal pressurizing device 32 in one direction toward the side close to the microbubble outlet 311, so that the centrifugal pressurizing device 32 can retreat, which is convenient for the continuous generation of microbubbles.

[0032] Specifically, a plurality of pressurized air supply systems 4 are installed on the inner wall of the pressurized pipe 31, and each pressurized air supply system 4 includes a pressurized air supply plate 41 and a pressurized air pipe 42. The rotating power system 1 includes a rotating motor and a hollow air supply pipe. The hollow air supply pipe is rotatably installed above the water tank 5, the rotating motor is installed on the water tank 5, the hollow air supply pipe is immersed in the water tank 5, the hollow air supply pipe is installed at the output end of the steering motor, and the hollow air supply pipe is connected to the air source through a rotary joint. The rotating power system 1 has a forward and reverse function through the forward and reverse rotation of the rotating motor. The pressurized air supply plate 41 is rotatably installed on the inner wall of the central water inlet cylinder 2 through the pressurized air pipe 42. 1 is provided with a resistance plate 43, the resistance plate 43 drives the pressurized air supply plate 41 to rotate, the contact position between the pressurized air supply plate 41 and the central water inlet cylinder 2 is located on both sides of the corresponding first filter hole 21, the hollow air pipe is connected with the pressurized air pipe 42, and then the air is transported from the pressurized air pipe 42 to the pressurized air supply plate 41, driven by the rotation of the central water inlet cylinder 2, the resistance plate 43 receives the water flow resistance and then drives the pressurized air supply plate 41 to press against the central water inlet cylinder 2, so that the pressurized air supply plate 41 holds the water flow and air, and the water flow and air are pressurized into the first filter hole 21 under the obstruction of the pressurized air supply plate 41, and the mixture of water flow and air enters the pressurized pipe 31 from the first filter hole 21.

[0033] Specifically, the pressurized pipe 31 is streamlined in design, which reduces the rotation resistance when the pressurized pipe 31 rotates following the central water inlet cylinder 2. In addition, since the pressurized pipe 31 increases the rotation radius, the mixture of air and water obtains a greater pressure when rotating, which accelerates the dissolution of air.

[0034] Specifically, the centrifugal pressurizing device 32 includes a centrifugal piston 321, a centrifugal rod 322, a centrifugal return spring 323 and a centrifugal weight 324. A one-way valve 3211 is provided on the centrifugal piston 321. The water flow of the one-way valve 3211 flows unidirectionally to the side close to the microbubble outlet 311. The centrifugal piston 321 is slidably installed on the pressurizing tube 31. The centrifugal rod 322 is installed on the centrifugal piston 321. The centrifugal weight 324 is installed on the centrifugal rod 322. When the pressurizing tube 31 rotates, the centrifugal weight 324 is acted upon by the centrifugal force to pull the centrifugal rod 322 and the centrifugal piston 321, so that the centrifugal piston 321 is squeezed toward the microbubble outlet 311, and the water and air mixture is squeezed to the microbubble outlet 311. Due to the effect of pressure, air is dissolved into the water flow faster. A microbubble plate is provided at the end of the pressurizing tube 31 farthest from the center water inlet cylinder 2. The microbubble outlet 311 is located on the microbubble plate. When water is sprayed out from the microbubble outlet 311, the pressure suddenly drops, and air escapes to generate a large number of microbubbles. The two ends of the centrifugal return spring 323 are installed between the microbubble plate and the centrifugal piston 321. The direction of action of the centrifugal return spring 323 makes the centrifugal piston 321 move away from the microbubble plate. In the process of the rotating motor slowing down until it rotates, the centrifugal return spring drives the centrifugal piston 321 to move away from the microbubble plate, and the mixture of water and air is replenished between the centrifugal piston 321 and the microbubble plate through the one-way valve 3211.

[0035] Specifically, the filter dredging device 33 includes a filter plate 331 and a filter dredging device 332. The filter dredging device 332 includes a filter piston 3321 and a plurality of dredging rods 3322. The filter plate 331 is provided with a plurality of second filter holes. Each dredging rod 3322 is mounted on the filter piston 3321. Each dredging rod 3322 slides along the corresponding second filter hole. The filter piston 3321 is mounted on the centrifugal pressurizing device 32 through a traction rope 34. When the rotation speed of the central water inlet cylinder 2 reaches the maximum (such as Figure 6 As shown in the figure, the centrifugal piston 321 squeezes the mixture of water and air through the microbubble outlet 311, and the centrifugal piston 321 traction rope 34 pulls the filter piston 3321 to move, so that the dredging rod 3322 is pulled out from the second filter hole, thereby preventing impurities from remaining in the second dredging hole and preventing large particles from passing through the second filter hole, keeping the second filter hole and the microbubble outlet 311 relatively clean to prevent clogging, and then the central water inlet cylinder 2 slows down (as shown in the figure). Figure 8 As shown), until the centrifugal piston 321 pushes the filter piston 3321 to re-contact the filter plate 331, and then the central water inlet cylinder 2 reverses and gradually speeds up (as shown in FIG. Figure 4 As shown), the centrifugal piston 321 is again made to squeeze the mixture of water flow and air through the microbubble outlet 311 until the rotation speed reaches the maximum.

[0036] Specifically, a magnet 3323 that attracts the filter plate 331 is provided near one side of the filter piston 3321. The magnet 3323 can prevent the filter piston 3321 from being separated from the filter plate 331 under the action of water flow.

[0037] A method for generating bubbles using a micro-bubble pump for water treatment, using the micro-bubble pump for water treatment, is characterized by comprising the following steps: S1: air is introduced into the central water inlet cylinder 2 to start the rotation power system 1; S2: The centrifugal pressurizing device 32 is driven by the rotation of the central water inlet cylinder 2, and the water flows through the centrifugal pressurizing device 32 in one direction toward the side close to the microbubble outlet 311; S3: The air is dissolved faster under the pressure of the centrifugal pressurizing device 32. After the water flows through the microbubble outlet 311, the pressure suddenly disappears, and the air dissolved in the water escapes. The centrifugal pressurizing device 32 pulls the filtering and dredging device 33 to move, thereby ensuring smooth water flow.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A micro bubble pump for water treatment, characterized in that: The invention comprises a rotary power system (1), a central water inlet cylinder (2) and a plurality of pressurizing systems (3), each of the pressurizing systems (3) comprising a pressurizing pipe (31), a centrifugal pressurizing device (32) and a filtering and dredging device (33), each of the pressurizing pipes (31) being installed around the central water inlet cylinder (2), the central water inlet cylinder (2) being provided with a plurality of first filtering holes (21), each of the first filtering holes (21) being connected to a corresponding pressurizing pipe (31), the central water inlet cylinder (2) being installed at the output end of the rotary power system (1), the centrifugal pressurizing device (32) The filter dredging device (33) is installed at the end of the pressurized pipe (31) that is farthest from the center water inlet cylinder (2). The filter dredging device (33) is installed on the pressurized pipe (31). The end of the pressurized pipe (31) that is farthest from the center water inlet cylinder (2) is provided with a plurality of microbubble outlets (311). The centrifugal pressurizing device (32) squeezes in the direction of the microbubble outlets (311) under the action of centripetal force. The filter dredging device (33) is transmission-connected to the centrifugal pressurizing device (32). Water flows through the centrifugal pressurizing device (32) in a unidirectional manner toward a side close to the microbubble outlets (311).

2. The micro-bubble pump for water treatment according to claim 1, characterized in that: A plurality of pressurized air supply systems (4) are installed on the inner wall of the pressurized pipe (31), each of the pressurized air supply systems (4) comprising a pressurized air supply plate (41) and a pressurized air pipe (42), the pressurized air supply plate (41) being rotatably installed on the inner wall of the central water inlet cylinder (2) via the pressurized air pipe (42), the pressurized air supply plate (41) being provided with a resistance plate (43), the resistance plate (43) driving the pressurized air supply plate (41) to rotate, and the contact position between the pressurized air supply plate (41) and the central water inlet cylinder (2) being located on both sides of the corresponding first filter hole (21).

3. The micro-bubble pump for water treatment according to claim 1, characterized in that: The pressurizing pipe (31) is of streamlined design.

4. The micro-bubble pump for water treatment according to claim 1, characterized in that: The centrifugal pressurizing device (32) comprises a centrifugal piston (321), a centrifugal rod (322), a centrifugal return spring (323) and a centrifugal counterweight (324); the centrifugal piston (321) is provided with a one-way valve (3211); water from the one-way valve (3211) flows unidirectionally to a side close to the microbubble outlet (311); the centrifugal piston (321) is slidably mounted on the pressurizing tube (31); the centrifugal rod (322) is mounted on the centrifugal piston (321); the centrifugal counterweight (324) is mounted on the centrifugal rod (322); a microbubble plate is provided at one end of the pressurizing tube (31) that is farthest from the central water inlet cylinder (2); the microbubble outlet (311) is located on the microbubble plate; two ends of the centrifugal return spring (323) are mounted between the microbubble plate and the centrifugal piston (321); and the action direction of the centrifugal return spring (323) causes the centrifugal piston (321) to move in a direction away from the microbubble plate.

5. The micro-bubble pump for water treatment according to claim 1, characterized in that: The filter dredging device (33) comprises a filter plate (331) and a filter dredging device (332); the filter dredging device (332) comprises a filter piston (3321) and a plurality of dredging rods (3322); the filter plate (331) is provided with a plurality of second filter holes; each of the dredging rods (3322) is mounted on the filter piston (3321); each of the dredging rods (3322) slides along a corresponding second filter hole; and the filter piston (3321) is mounted on the centrifugal pressurizing device (32) via a traction rope (34).

6. The micro-bubble pump for water treatment according to claim 5, characterized in that: A magnet (3323) that attracts the filter plate (331) is provided on one side of the filter piston (3321) plate.

7. The micro-bubble pump for water treatment according to claim 1, characterized in that: The rotary power system (1) has forward and reverse rotation functions.

8. A method for generating bubbles using a micro-bubble pump for water treatment, using the micro-bubble pump for water treatment according to claim 1, characterized in that: The steps include: S1: air is introduced into the central water inlet cylinder (2) to start the rotation power system (1); S2: When the centrifugal pressurizing device (32) is driven by the central water inlet cylinder (2) to rotate, water flows through the centrifugal pressurizing device (32) in a unidirectional manner toward a side close to the microbubble outlet (311); S3: The air is accelerated to dissolve under the pressure of the centrifugal pressurizing device (32), and after the water flows through the microbubble outlet (311), the pressure suddenly disappears, and the air dissolved in the water escapes.

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