Nanometer bubble generator and bubble generating system

Abstract

The utility model belongs to the technical field of water treatment, and discloses a nano bubble generator and a bubble generating system. The nanobubble generator comprises a main body, sealing pieces, flanges and locking pieces, the main body is used for mixing gas and liquid and forming bubbles, and the sealing pieces are arranged at the two ends of the main body; the two turnups are in butt joint with the two ends of the body respectively, the periphery of the connecting portion of the body and the turnups is sleeved with the locking piece, the locking piece can be in threaded connection with the outer wall of the body, the locking piece is provided with a first abutting portion, the outer wall of each turnup is provided with a second abutting portion, and when the locking piece is tightly screwed to the body, the first abutting portion is tightly pressed on the second abutting portion. Therefore, the sealing piece is compressed between the main body and the flange. According to the utility model, the nanobubble generator can be ensured to have excellent sealing performance in the long-term use process, the problems of pressure leakage and liquid leakage in welding connection are avoided, and the service life of the nanobubble generator is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a nano-bubble generator and a bubble generation system. Background Art

[0002] The nano-bubble generator generates nano-scale bubbles in a liquid by methods such as high pressure, shear force, ultrasonic waves, electrolysis, etc. The diameters of these bubbles are usually between dozens and hundreds of nanometers, which are much smaller than the sizes of traditional bubbles. Due to their extremely small sizes and special surface properties, nano-bubbles can stably exist in a liquid for a long time and exhibit unique solubility, diffusivity, and reactivity.

[0003] The nano-bubble generator is applied in many fields, such as sewage treatment, aquaculture, medical treatment, environmental protection, and agriculture.

[0004] In the prior art, both ends of the main body of the nano-bubble generator are connected by welding and flanging. During long-term use, problems such as pressure leakage and liquid leakage are likely to occur at the welding parts, resulting in the failure of the entire nano-bubble generator. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a nano-bubble generator and a bubble generation system, which are used to solve the problems of pressure leakage and liquid leakage that are likely to occur at the welding parts during the long-term use of the nano-bubble generator, and improve the service life of the nano-bubble generator.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The nano-bubble generator includes:

[0008] A main body, which is used for mixing gas and liquid to form bubbles;

[0009] Sealing members, two of which are arranged at both ends of the main body;

[0010] Flanges, two of which are respectively butted against both ends of the main body;

[0011] A locking member, which is sleeved on the outer periphery of the connection part of the main body and the flange. The locking member can be screwed to the outer wall of the main body. The locking member is provided with a first abutting portion, and the outer wall of the flange is provided with a second abutting portion. When the locking member is screwed tightly to the main body, the first abutting portion presses against the second abutting portion, so that the sealing member is pressed tightly between the main body and the flange.

[0012] As an alternative to the nanobubble generator, the seal is an O-ring. Limiting grooves are respectively provided at both ends of the main body. The seal is placed in the limiting grooves, and a partial structure of the seal protrudes from the end face of the main body.

[0013] As an alternative to the nanobubble generator, the first abutting portion is a first annular boss at the end away from the main body, and the first boss extends in a direction approaching the flanging.

[0014] As an alternative to the nanobubble generator, the second abutting portion is a second annular boss, and the first boss can axially press against the second boss.

[0015] As an alternative to the nanobubble generator, an air inlet hole is provided on the main body. The gas enters the main body through the air inlet hole, and the liquid enters the main body through the inner cavity of the flanging on one side.

[0016] As an alternative to the nanobubble generator, a mixing assembly is provided inside the main body. The mixing assembly includes a mixing chamber, and the gas and the liquid are mixed in the mixing chamber.

[0017] As an alternative to the nanobubble generator, the mixing assembly includes an inlet part and a jet disk. One end of the inlet part is provided with a liquid inlet channel for the liquid to pass through. The mixing chamber is arranged inside the inlet part, and the mixing chamber is communicated with the liquid inlet channel. The jet disk abuts against the other end of the inlet part. A plurality of jet holes are evenly distributed along the circumference of the jet disk, and the jet holes are communicated with the mixing chamber. The gas entering through the air inlet hole enters the mixing chamber through the jet holes.

[0018] As an alternative to the nanobubble generator, an outlet part is provided at the end of the jet disk away from the inlet part. An outflow channel is arranged inside the outlet part, and the outflow channel is communicated with the mixing chamber. The bubbles discharged from the mixing chamber are discharged through the outflow channel.

[0019] As an alternative to the nanobubble generator, the cross section of the liquid inlet channel gradually decreases in the flowing direction of the liquid.

[0020] A bubble generation system includes the nanobubble generator according to any one of the above solutions.

[0021] Beneficial effects:

[0022] In the first aspect of the present utility model, a seal is clamped between the main body and the flanging. At the contact part between the main body and the flanging, a locking member is sleeved. External threads are respectively provided on the outer walls of the main body near both ends. The locking member is provided with internal threads, and the two sides of the main body are respectively screwed and matched with the internal threads of the locking member through the external threads; during the process of the locking member continuously screwing into the main body, the two locking members move towards each other. During the movement, the first abutting part of the locking member continuously presses the second abutting part on the outer wall of the flanging, so that the two flangings continuously approach the main body and compress the seal between the two, thereby ensuring the sealing performance of the main body, effectively avoiding the connection form of welding the main body and the flanging adopted in the prior art, and in the process of long-term use, problems such as pressure leakage and liquid leakage are likely to occur at the welding part, and the service life of the nano-bubble generator is improved.

[0023] In the first aspect of the present utility model, the bubble generation system configured with the above generator can ensure excellent sealing performance, thereby extending the service life of the entire bubble generation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the front view of the nano-bubble generator provided by the embodiment of the present utility model;

[0025] Figure 2 is the cross-sectional view of the nano-bubble generator provided by the embodiment of the present utility model.

[0026] In the figure:

[0027] 1. Main body; 11. Air inlet hole; 12. Inlet part; 121. Mixing cavity; 122. Liquid inlet channel; 13. Jet disk; 14. Outlet part; 141. Outflow channel;

[0028] 2. Seal;

[0029] 3. Flanging; 31. Second abutting part;

[0030] 4. Locking member; 41. First abutting part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0032] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0034] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0035] Please refer to the attached Figure 1 and the attached Figure 2 , the first aspect of this embodiment relates to a nano-bubble generator (hereinafter referred to as "generator"), which includes a main body 1, a seal 2, a flanging 3, and a locking member 4. Specifically, the main body 1 is used for mixing gas and liquid to form bubbles, and two seals 2 are arranged at both ends of the main body 1; two flangings 3 are respectively butted against both ends of the main body 1, the locking member 4 is sleeved on the outer periphery of the connection part of the main body 1 and the flanging 3, the locking member 4 can be screwed to the outer wall of the main body 1, a first abutting part 41 is arranged on the locking member 4, and a second abutting part 31 is arranged on the outer wall of the flanging 3. When the locking member 4 is screwed tightly to the main body 1, the first abutting part 41 presses tightly against the second abutting part 31, so that the seal 2 is pressed tightly between the main body 1 and the flanging 3.

[0036] In this embodiment, the main body 1 is a cylindrical pipe fitting; the two flanges 3 are also cylindrical pipe fittings and are respectively arranged at both ends of the main body 1. The seal 2 is clamped between the main body 1 and the flanges 3. At the contact part between the main body 1 and the flanges 3, a locking member 4 is sleeved. External threads are respectively arranged on the outer walls of the main body 1 near both ends. The locking member 4 is provided with internal threads, and the two sides of the main body 1 are respectively screwed and matched with the internal threads of the locking member 4 through the external threads; during the process of the locking member 4 continuously screwing into the main body 1, the two locking members 4 move towards each other. During the movement, the first abutting portion 41 of the locking member 4 continuously presses the second abutting portion 31 on the outer wall of the flange 3, so that the two flanges 3 continuously approach the main body 1 and press the seal 2 therebetween, thereby ensuring the sealing performance of the main body 1, effectively avoiding the connection form of welding the main body 1 and the flanges 3 adopted in the prior art, and the problems of pressure leakage and liquid leakage easily occurring at the welding part during long-term use, and improving the service life of the generator.

[0037] Optionally, the seal 2 is an O-ring. Limiting grooves are respectively arranged at both ends of the main body 1. The seal 2 is placed in the limiting grooves, and a part of the structure of the seal 2 protrudes from the end face of the main body 1.

[0038] Annular limiting grooves are respectively arranged at both ends of the main body 1. The cross section of the limiting grooves is semi-circular. The seal 2 is an annular O-ring. Through a part of the structure of the seal 2 protruding from the end face of the main body 1, the flange 3 can press the seal 2 protruding from the end face of the main body 1, thereby ensuring that the seal 2 stably seals between the main body 1 and the flange 3 and avoiding liquid leakage and pressure leakage. The O-ring adopts a standard part with corresponding dimensions, which can improve the economy of replacing the seal 2.

[0039] Optionally, the first abutting portion 41 is an annular first boss at the end far from the main body 1, and the first boss extends towards the flange 3.

[0040] In this embodiment, the first boss is an internal boss formed inside the hole. The top wall of the first boss is arranged around the outer circumference of the flange 3. The side wall of the first boss close to the main body 1 is used for axially pressing the second abutting portion 31 of the flange 3. The first boss can be directly integrally formed on the locking member 4 to reduce the number of parts and assembly processes, thereby reducing costs.

[0041] Further, the second abutting portion 31 is an annular second boss, and the first boss can axially press on the second boss.

[0042] In this embodiment, the second boss is an outer boss formed on the outer wall of the shaft, the top wall of the second boss abuts against the inner wall of the locking member 4, and the side wall away from the main body 1 can abut against the side wall of the first boss close to the main body 1, and the side walls of the two can achieve force transmission. That is, when the locking member 4 is screwed, the locking member 4 is continuously screwed in relative to the main body 1, and the side wall of the first boss continuously squeezes the side wall of the second boss, so that the flange 3 and the main body 1 are relatively close and squeeze the seal 2, so that the seal 2 maintains stable sealing.

[0043] Optionally, an air inlet 11 is provided on the main body 1 , and gas enters the main body 1 through the air inlet 11 , and liquid enters the main body 1 through the inner cavity of the flange 3 on one side.

[0044] In this embodiment, a circular air inlet hole 11 is opened on the side wall of the main body 1, and the air inlet hole 11 is used to discharge gas. For example, the gas that can be introduced can be nitrogen. The gas enters the main body 1 through the air inlet hole 11, and the liquid will enter from one side of the flange 3 and mix with the gas inside the main body 1. The bubbles formed on the other side of the flange 3 will be discharged.

[0045] Furthermore, a mixing assembly is provided inside the main body 1 , and the mixing assembly includes a mixing chamber 121 , and the gas and the liquid are mixed in the mixing chamber 121 .

[0046] In this embodiment, in order to fully mix the gas and liquid to improve the efficiency of bubble generation, a mixing component specially used for mixing gas and liquid is provided inside the main body 1, and a mixing chamber 121 is provided in the mixing component to ensure the rationality of the mixing layout inside the main body 1.

[0047] Furthermore, the mixing assembly includes an inlet piece 12 and an injection disc 13. One end of the inlet piece 12 is provided with an inlet channel 122 for liquid to pass through. A mixing chamber 121 is arranged in the inlet piece 12. The mixing chamber 121 is communicated with the inlet channel 122. The injection disc 13 abuts against the other end of the inlet piece 12. The injection disc 13 has a plurality of injection holes evenly distributed along the circumference. The injection holes are communicated with the mixing chamber 121. The gas entering from the inlet hole 11 enters the mixing chamber 121 through the injection holes.

[0048] In this embodiment, the inlet member 12 is also a cylindrical structure, and the outer wall of the inlet member 12 is provided with an external thread, which can be screwed with the internal thread of the inner wall of the main body 1. The inlet member 12 can adjust the gap with the jet disc 13 through the thread to assist in generating bubbles. A liquid inlet channel 122 for liquid to enter is provided inside one end of the inlet member 12, that is, the liquid enters the liquid inlet channel 122 through the flange 3 on one side, and further enters the mixing chamber 121 from the liquid inlet channel 122; the outer wall of the jet disc 13 is evenly spaced along the circumference with jet holes, and exemplarily, 9 jet holes with a diameter of 1 mm are evenly spaced along the circumference on the outer wall of the jet disc 13, and the gas will first enter the space between the main body 1 and the jet disc 13 through the air inlet hole 11, and then enter the mixing chamber 121 through the jet hole.

[0049] By arranging the jet holes evenly spaced along the circumference of the outer wall of the jet disc 13, it is possible to ensure that the gas can enter the mixing chamber 121 evenly and stably, and ensure that the gas and the liquid are fully mixed. Since the gas and the liquid both enter the mixing chamber 121 under a certain pressure, bubbles with high kinetic energy will be generated during the mixing process of the gas and the liquid in the mixing chamber 121.

[0050] Optionally, the cross-section of the liquid inlet channel 122 gradually decreases in the flow direction of the liquid.

[0051] The liquid inlet channel 122 gradually narrows along the flow direction of the liquid, so that the liquid can enter the mixing chamber 121 at a higher flow rate to improve the mixing efficiency.

[0052] Furthermore, an outlet piece 14 is provided at one end of the jet disc 13 away from the inlet piece 12 , and an outflow channel 141 is provided in the outlet piece 14 . The outflow channel 141 is communicated with the mixing chamber 121 , and the bubbles discharged from the mixing chamber 121 are discharged through the outflow channel 141 .

[0053] In this embodiment, the outlet piece 14 is also a cylinder, and an outflow channel 141 is provided in the outlet piece 14 along the circumferential direction. The outflow channel 141 is along the discharge direction of the bubbles. Due to the negative pressure of the outflow channel 141, the bubbles generated in the mixing chamber 121 will gradually be discharged outward from the outflow channel 141. The opening area of ​​the outflow channel 141 gradually increases along the discharge direction of the bubbles, which can improve the efficiency of bubble discharge.

[0054] The second aspect of this embodiment also relates to a bubble generating system, which includes the above generator. The bubble generating system equipped with the above generator can ensure excellent sealing performance, thereby extending the life of the entire bubble generating system.

[0055] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A nano bubble generator, characterized in that: include: A main body (1), wherein the main body (1) is used for mixing gas and liquid and forming bubbles; Sealing members (2), wherein two sealing members (2) are arranged at two ends of the main body (1); Flanged edges (3), two flanged edges (3) are respectively connected to two ends of the main body (1); A locking member (4), wherein the locking member (4) is sleeved on the outer periphery of the connection portion between the main body (1) and the flange (3), and the locking member (4) can be screwed to the outer wall of the main body (1). The locking member (4) is provided with a first abutting portion (41), and the outer wall of the flange (3) is provided with a second abutting portion (31). When the locking member (4) is screwed to the main body (1), the first abutting portion (41) is pressed against the second abutting portion (31), so that the sealing member (2) is pressed between the main body (1) and the flange (3).

2. The nano bubble generator according to claim 1, characterized in that: The sealing member (2) is a sealing ring. Limiting grooves are respectively provided at both ends of the main body (1). The sealing member (2) is placed in the limiting grooves, and a part of the structure of the sealing member (2) protrudes from the end surface of the main body (1).

3. The nano bubble generator according to claim 1, characterized in that: The first abutment portion (41) is a first annular boss located at one end away from the main body (1), and the first boss extends in a direction close to the flange (3).

4. The nano bubble generator according to claim 3, characterized in that: The second abutment portion (31) is a second annular boss, and the first boss can be pressed against the second boss in the axial direction.

5. The nano bubble generator according to claim 1, characterized in that: The main body (1) is provided with an air inlet hole (11), the gas enters the main body (1) through the air inlet hole (11), and the liquid enters the main body (1) through the inner cavity of the flange (3) on one side.

6. The nano bubble generator according to claim 5, characterized in that: A mixing component is provided inside the main body (1), wherein the mixing component comprises a mixing chamber (121), and the gas and the liquid are mixed in the mixing chamber (121).

7. The nano bubble generator according to claim 6, characterized in that: The mixing assembly comprises an inlet piece (12) and an injection disc (13); one end of the inlet piece (12) is provided with a liquid inlet channel (122) for the liquid to pass through; the mixing chamber (121) is arranged in the inlet piece (12); the mixing chamber (121) is communicated with the liquid inlet channel (122); the injection disc (13) abuts against the other end of the inlet piece (12); the injection disc (13) has a plurality of injection holes evenly distributed along the circumference; the injection holes are communicated with the mixing chamber (121); the gas entering through the inlet hole (11) enters the mixing chamber (121) through the injection holes.

8. The nano bubble generator according to claim 7, characterized in that: An outlet piece (14) is provided at one end of the jet disc (13) away from the inlet piece (12), and an outflow channel (141) is provided in the outlet piece (14). The outflow channel (141) is communicated with the mixing chamber (121), and the bubbles discharged from the mixing chamber (121) are discharged through the outflow channel (141).

9. The nanobubble generator according to claim 7, characterized in that: The cross section of the liquid inlet channel (122) gradually decreases in the flow direction of the liquid.

10. A bubble generating system, characterized in that: The invention comprises the nano bubble generator as claimed in any one of claims 1 to 9.

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