Microbubble valve

Abstract

This application relates to the field of exhaust valve technology and discloses a microbubble valve, including a valve body, a valve cover, a filter assembly, and an exhaust assembly: the valve body has a receiving cavity, and the valve body has a first inlet / outlet and a second inlet / outlet, which are respectively connected to the receiving cavity; the valve cover is disposed on the valve body, and the valve cover has an exhaust port, which is connected to the receiving cavity; the filter assembly is disposed in the receiving cavity, and at least a portion of the filter assembly is located between the first inlet / outlet and the second inlet / outlet; the exhaust assembly is disposed in the receiving cavity and is adapted to selectively block the exhaust port; wherein, the valve body also includes a valve cover opening, the valve cover is disposed on the valve body to block the valve cover opening, and along the axial direction of the valve body, one of the first inlet / outlet and the second inlet / outlet is disposed opposite to the valve cover opening, and the valve body is an integrally formed part. The microbubble valve of this application improves the sealing performance.

Description

Technical Field

[0001] This application relates to the field of exhaust valve technology, and more particularly to a microbubble valve. Background Technology

[0002] Tiny bubbles exist in the fluid medium of systems such as pumps, refrigeration cycles, and ground source heat pumps. Tiny bubbles can easily lead to problems such as cavitation, uneven flow, or reduced thermal efficiency. Microbubble valves are usually used to remove tiny bubbles from the fluid medium.

[0003] In related technologies, microbubble valves are constructed in a split manner, which results in high manufacturing costs, large size, and poor sealing performance. Therefore, how to improve the sealing performance of microbubble valves is a technical problem that urgently needs to be solved. Utility Model Content

[0004] This application provides a microbubble valve that improves the sealing performance of the microbubble valve.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, embodiments of this application provide a microbubble valve, including a valve body, a valve cover, a filter assembly, and an exhaust assembly: the valve body has a receiving cavity, and the valve body has a first inlet / outlet and a second inlet / outlet, which are respectively connected to the receiving cavity; the valve cover is disposed on the valve body, and the valve cover has an exhaust port, which is connected to the receiving cavity; the filter assembly is disposed in the receiving cavity, and at least a portion of the filter assembly is located between the first inlet / outlet and the second inlet / outlet; the exhaust assembly is disposed in the receiving cavity, and the exhaust assembly is adapted to selectively block the exhaust port; wherein, the valve body also includes a valve cover opening, the valve cover is disposed on the valve body to block the valve cover opening, and along the axial direction of the valve body, one of the first inlet / outlet and the second inlet / outlet is disposed opposite to the valve cover opening, and the valve body is an integrally formed part.

[0007] The microbubble valve proposed in this application has a valve body that is a one-piece molded part and can be formed by a single mold. It does not have the welding seams, bolt connection gaps or splicing interfaces of traditional split structures. When the liquid flows in the receiving cavity, it will not pass through the interface gaps, reducing the possibility of liquid leakage. At the same time, the one-piece molding process (such as die casting or injection molding) is suitable for mass production. Although the mold development cost is high, the processing time of a single valve body can be reduced during mass production (reducing welding and assembly processes). The structure is simple, easy to assemble, and highly reliable.

[0008] Optionally, the first inlet and outlet ports and the second inlet and outlet ports are spaced apart along the axial direction of the valve body.

[0009] In the above scheme, the first and second liquid inlets and outlets are set at intervals, which allows the fluid to pass through the internal flow channel of the valve body along the axial direction, forming a smoother unidirectional flow path, reducing fluid resistance and pressure fluctuations, and at the same time facilitating the upward dissipation of bubbles after gas-liquid separation, thereby improving the gas-liquid separation effect.

[0010] Optionally, one of the first inlet / outlet and the second inlet / outlet is the inlet, and the other of the first inlet / outlet and the second inlet / outlet is the outlet.

[0011] In the above scheme, the first inlet and outlet can be used as either an inlet or an outlet, and the second inlet and outlet can also be used as either an inlet or an outlet. In other words, the inlet and outlet of the microbubble valve can be determined according to actual usage needs, which facilitates use under different working conditions and improves ease of use.

[0012] Optionally, the first inlet and outlet ports are arranged opposite to the second inlet and outlet ports along the radial direction of the valve body.

[0013] In the above scheme, the first and second inlet and outlet ports arranged radially opposite each other can make the fluid entry and exit path more direct (approximately straight flow), avoid fluid turbulence caused by turning or offset layout, reduce changes in the flow direction of the fluid medium, reduce energy loss, and help improve flow stability.

[0014] Optionally, the exhaust assembly includes a float body, a connecting rod, and a first sealing rod connected in sequence. Along the axial direction of the valve body, the float body is movably disposed in the receiving cavity and the first sealing rod is driven by the connecting rod to selectively block the exhaust port.

[0015] In the above scheme, the float body is movably disposed in the receiving cavity and the first sealing rod is driven by the connecting rod to selectively block the exhaust port. This ensures that the gas in the valve cavity can be smoothly discharged from the exhaust port, thus ensuring the stable operation of the microbubble valve.

[0016] Optionally, the valve cover is provided with a first protrusion and a mounting sleeve, both of which are located on the side of the valve cover facing the receiving cavity, and the mounting sleeve encloses a mounting chamber that communicates with the exhaust port.

[0017] The microbubble valve also includes a fixing component, which includes a first fixing part, a first elastic part and a second fixing part connected in sequence. The first fixing part is snapped into the first protrusion, the second fixing part is sleeved on the mounting sleeve, and the connecting rod is rotatably disposed on the second fixing part. The first elastic part is configured to press the second fixing part against the side of the valve cover facing the receiving cavity.

[0018] In the above scheme, the first elastic part is configured to press the second fixing part against the side of the valve cover facing the receiving cavity. This fixes the second fixing part to the valve cover and provides a rotation fulcrum for the connecting rod. At the same time, the first elastic part, as the core component, uses the preload generated by elastic deformation (such as the rebound force of a spring or elastic sheet) to continuously press the second fixing part against the inner wall of the valve cover. By providing preload, the fixing part is prevented from loosening, ensuring the relative positional accuracy of the connecting rod assembly and the exhaust port, and improving the overall structural reliability.

[0019] Optionally, the second fixing part includes a second body and a fixing plate. The second body is connected to the first elastic part, the fixing plate is disposed on the second body and extends in a direction away from the valve cover, the second fixing part is sleeved on the mounting sleeve, and the connecting rod is rotatably disposed on the fixing plate.

[0020] In the above scheme, the fixed plate provides a pivot point for the connecting rod, which ensures that the connecting rod rotates in a plane around the corresponding pivot point of the fixed plate, avoiding the skewing of the sealing rod due to the multi-dimensional movement of the connecting rod, and ensuring the normal operation of the microbubble valve.

[0021] Optionally, the microbubble valve also includes a filter support, which is disposed in the receiving cavity and surrounds a guide chamber. The guide chamber is connected to the receiving cavity and cooperates with the float body to guide the float body in the axial direction of the valve body.

[0022] In the above scheme, the cooperation between the guide chamber and the float body (such as cylindrical contact or slider-groove structure) can limit the radial sway of the float body, causing it to move only along the axial direction of the valve body (the main flow direction of the fluid). This prevents the float body from shifting laterally due to fluid turbulence or bubble impact, avoids friction and jamming with the inner wall of the valve body, and ensures smooth valve operation.

[0023] Optionally, the filter support includes a base plate and an annular side plate disposed on the base plate. Along the axial direction of the valve body, the annular side plate is disposed on the side of the base plate near the valve cover, and the annular side plate and the base plate enclose a guide chamber.

[0024] In the above design, the annular side plate extends along the valve body axis (i.e., the main flow direction of the fluid) and forms a rigid frame with the base plate. This structure can withstand the axial forces (such as buoyancy and fluid impact) during the movement of the float body, and avoids deformation causing the guide chamber shape to shift.

[0025] Optionally, the filter support also includes a guide post, which is fixed to the side of the base plate facing the valve cover. The float body has a limiting channel that cooperates with the guide post, and both the limiting channel and the guide post extend along the axial direction of the valve body.

[0026] In the above scheme, the float body has a limiting channel that cooperates with the guide post. Both the limiting channel and the guide post extend along the axial direction of the valve body. This can prevent the float body from colliding with the peripheral wall of the valve body, reduce the noise of the microbubble valve, and reduce the wear of the microbubble valve. On the other hand, it can also ensure that the float body accurately drives the first sealing rod to seal or open the exhaust port, thereby improving the operating performance of the microbubble valve.

[0027] Optionally, the base plate has multiple first through holes, and the annular side plate has multiple second through holes, all of which connect to the guide chamber and the receiving chamber.

[0028] In the above scheme, fluid can flow between the guide chamber and the receiving chamber through at least one of the first through hole and the second through hole, and bubbles can move between the guide chamber and the receiving chamber through at least one of the first through hole and the second through hole. That is to say, the first through hole of the plate and the second through hole of the annular side plate together form a "three-dimensional through" flow channel, which improves the flow efficiency of the medium in the microbubble valve.

[0029] Optionally, the first sealing rod includes a rod body and a sealing part, one end of the rod body is connected to the connecting rod, and the other end of the rod body is connected to the sealing part;

[0030] The exhaust assembly also includes a sealing ring, which is located on the side of the valve cover facing the receiving cavity and surrounds the exhaust port. The sealing part has a sealing surface that mates with the sealing ring, and the sealing surface is constructed as an arc surface.

[0031] In the above scheme, the arc surface of the sealing part forms a "surface contact" seal with the sealing ring, resulting in a larger sealing area. On the one hand, this improves the sealing reliability of the exhaust port. On the other hand, when venting, the bubbles can gather at the highest point of curvature (apex) due to buoyancy, forming a bubble cluster that is then discharged through the exhaust port, thereby improving the venting efficiency.

[0032] Optionally, the filter assembly includes: a plurality of first rings arranged at intervals along the axial direction of the valve body; a plurality of first rod groups, each first rod group being disposed radially inside the corresponding first ring, each first rod group including a plurality of first rods, each first rod extending radially along the first ring, and the plurality of first rods being arranged at intervals circumferentially along the first ring;

[0033] Multiple connecting plates are spaced apart along the circumference of the first ring. Along the axial direction of the valve body, each connecting plate connects to multiple first rings. Each connecting plate is provided with multiple spaced second rods, which are located radially inside the first ring and extend radially along the first ring.

[0034] In the above scheme, multiple first rings are spaced apart along the axial direction of the valve body, and multiple second rods are spaced apart. This forms a multi-layered filtration barrier, extends the filtration path, and enables the filter screen to merge more micro bubbles into large bubbles, thereby improving the filtration performance of the filter screen. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of a microbubble valve provided in some embodiments of this application;

[0037] Figure 2 A top view of the microbubble valve provided in some embodiments of this application;

[0038] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0039] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0040] Figure 5 Schematic diagrams of the fasteners provided in some embodiments of this application;

[0041] Figure 6 This is a schematic diagram of the structure of the filter holder provided in some embodiments of this application;

[0042] Figure 7 This is a schematic diagram of the structure of a filtering component provided in some embodiments of this application.

[0043] [Explanation of Labels in the Attached Image]

[0044] 100: Valve body; 110: Receiving cavity; 120: First inlet / outlet; 130: Second inlet / outlet; 140: Valve cover opening;

[0045] 200: Valve cover; 210: Exhaust port; 220: First protrusion;

[0046] 230: Install the sleeve; 231: Install the chamber;

[0047] 300: Filter assembly; 310: First ring; 320: First rod assembly; 321: First rod; 330: Connecting plate; 331: Second rod;

[0048] 400: Exhaust assembly; 410: Float body; 411: Limiting channel;

[0049] 420: Linkage;

[0050] 430: First sealing rod; 431: Rod body; 432: Sealing part; 432a: Sealing surface;

[0051] 440: Sealing ring;

[0052] 500: Fastener; 510: First fixing part; 520: First elastic part;

[0053] 530: Second fixing part; 531: Second body; 532: Fixing piece;

[0054] 600: Filter support; 610: Guide chamber; 620: Base plate; 621: First through hole;

[0055] 630: Annular side plate; 631: Second through hole;

[0056] 640: Guide post;

[0057] X: Axial direction of valve body. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0060] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0062] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0063] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0064] In modern industrial and civil applications, heat pumps, refrigeration cycles, and ground source heat pumps are widely used due to their high efficiency and energy savings. During operation, these systems often contain tiny air bubbles in the fluid medium. The cavitation phenomenon caused by these bubbles can corrode and damage metal components within the system, shortening equipment lifespan. The presence of bubbles can also disrupt normal fluid flow, leading to uneven flow and affecting stable system operation. Furthermore, bubbles can form an air film on heat exchange surfaces, hindering heat transfer and significantly reducing thermal efficiency, thus increasing energy costs.

[0065] To address the problems caused by tiny bubbles in refrigerants or liquids, microbubble valves are typically used to remove these bubbles. In other words, the core function of a microbubble valve is to separate or suppress microbubbles in the refrigerant, thus preventing problems such as cavitation, uneven flow, or reduced heat exchange efficiency.

[0066] However, most microbubble valves in related technologies adopt a split structure. This design not only makes the manufacturing process complicated due to the processing and assembly of multiple components, increasing labor and material costs, but also makes the overall size of the microbubble valve relatively large. This greatly limits its use in some installation environments with limited space. Furthermore, the combination of multiple components increases the probability of leakage, which affects the sealing performance of the microbubble valve.

[0067] In view of this, this application proposes a microbubble valve, wherein a valve cover 200 is disposed on a valve body 100, and the valve cover 200 has an exhaust port 210, which communicates with a receiving cavity 110; a filter assembly 300 is disposed in the receiving cavity 110, at least a portion of the filter assembly 300 being located between a first inlet / outlet 120 and a second inlet / outlet 130; an exhaust assembly 400 is disposed in the receiving cavity 110, and the exhaust assembly 400 is adapted to selectively block the exhaust port 210; wherein, the valve body 100 The valve body 100 also includes a valve cover port 140. A valve cover 200 is disposed on the valve body 100 to seal the valve cover port 140. Along the axial direction X of the valve body 100, one of the first inlet / outlet port 120 and the second inlet / outlet port 130 is disposed opposite to the valve cover port 140. The valve body 100 is a one-piece molded part. Since the valve body 100 is constructed as a one-piece molded part, on the one hand, the risk of liquid leakage is reduced, and the structural strength and sealing performance are improved. On the other hand, it is easy to install and use, improves the efficiency of use, and improves the user experience.

[0068] The microbubble valve proposed in this application is described below with reference to the accompanying drawings.

[0069] Please refer to Figure 1 , Figure 2 and Figure 3 The microbubble valve according to the first aspect of this application includes a valve body 100, a valve cover 200, a filter assembly 300, and an exhaust assembly 400.

[0070] The valve body 100 has a receiving cavity 110, and the valve body 100 has a first inlet / outlet 120 and a second inlet / outlet 130, which are respectively connected to the receiving cavity 110. It can be understood that the first inlet / outlet 120 can be used to allow the medium to flow in, and the second inlet / outlet 130 can be used to allow the medium to flow out, or the first inlet / outlet 120 can be used to allow the medium to flow out, and the second inlet / outlet 130 can be used to allow the medium to flow in, so that the medium in the receiving cavity 110 has a clear flow path, which helps to improve the flow efficiency of the medium.

[0071] The valve cover 200 is disposed on the valve body 100. The valve cover 200 has an exhaust port 210, which is connected to the receiving cavity 110. It can be understood that the valve cover 200 has an exhaust port 210 and is connected to the top of the receiving cavity 110, so that the air bubbles in the valve body 100 can float up and flow to the exhaust path, which facilitates the discharge of the air bubbles.

[0072] For example, the valve cover 200 can be detachably connected to the valve body 100, which facilitates maintenance personnel to clean the receiving cavity 110 or replace the parts inside the receiving cavity 110.

[0073] The filter assembly 300 is disposed within the receiving cavity 110, and at least a portion of the filter assembly 300 is located between the first inlet / outlet 120 and the second inlet / outlet 130. It is understood that the filter assembly 300 can separate air bubbles in the liquid flowing from the first inlet / outlet 120 to the second inlet / outlet 130, thereby reducing the probability of problems such as cavitation, uneven flow, or decreased heat exchange efficiency.

[0074] It is understood that at least a portion of the filter assembly 300 is disposed between the first inlet / outlet 120 and the second inlet / outlet 130 along the axial direction X of the valve body 100, so that when the liquid flows along the axial direction X, the bubbles are more fully subjected to inertial force and the filter medium, thereby improving the separation efficiency.

[0075] The exhaust assembly 400 is disposed within the receiving cavity 110 and is adapted to selectively block the exhaust port 210. It is understood that the filter assembly 300 can discharge the gas concentrated in the receiving cavity 110. On the one hand, it can reduce the pressure in the receiving cavity 110 and ensure the normal operation of the microbubble valve. On the other hand, it can prevent liquid from leaking from the exhaust port 210 and improve reliability.

[0076] The valve body 100 also includes a valve cover opening 140. A valve cover 200 is disposed on the valve body 100 to block the valve cover opening 140. Along the axial direction X of the valve body 100, one of the first liquid inlet / outlet 120 and the second liquid inlet / outlet 130 is disposed opposite to the valve cover opening 140. The valve body 100 is an integrally formed part.

[0077] Understandably, since the valve body 100 is a one-piece molded part, it can be manufactured using a one-piece molding process, avoiding the risk of liquid leakage caused by the seams of the split valve body 100, eliminating the sealing interface, and improving structural strength and sealing performance.

[0078] For example, the valve body 100 can be made of corrosion-resistant materials such as stainless steel or engineering plastics. Moreover, the valve body 100 is constructed as a one-piece molded part. Compared with the valve body 100 being a split type, there is no need to set up additional connecting structures to connect the valve body 100, which reduces the space occupied inside the valve body 100 and improves the utilization rate of the internal space of the valve body 100.

[0079] The filtration process of the microbubble valve in this embodiment is briefly described below: Liquid enters the receiving cavity 110 from the first inlet / outlet 120, passes through the filter assembly 300, and then flows out of the receiving cavity 110 from the second inlet / outlet 130. The filter assembly 300 is used to separate tiny bubbles in the liquid. When the liquid passes through the filter assembly 300, the tiny bubbles in the liquid can merge together to form larger bubbles, which then rise under the action of buoyancy. The valve cover 200 is provided with an exhaust port 210. After the large bubbles float to the surface of the liquid, they become gas, which can be discharged from the exhaust port 210. Along the axial direction X of the valve body 100, the filter assembly 300 can be disposed between the first inlet / outlet 120 and the second inlet / outlet 130. A part of the filter assembly 300 can also be located between the first inlet / outlet 120 and the valve cover 200, which can reduce the probability that the liquid cannot be filtered by the filter assembly 300.

[0080] The microbubble valve proposed in this application has a valve body 100 that is a one-piece molded part and can be formed by a single mold. There are no weld seams, bolt connection gaps or splicing interfaces in the traditional split structure. When the liquid flows in the receiving cavity 110, it will not pass through the interface gaps, reducing the possibility of liquid leakage. At the same time, the one-piece molding process (such as die casting or injection molding) is suitable for mass production. Although the mold development cost is high, the processing time of a single valve body 100 can be reduced during mass production (reducing welding and assembly processes). The structure is simple, easy to assemble, and highly reliable.

[0081] In other embodiments, please refer to Figure 1 and Figure 3 Along the axial direction X of the valve body 100, the first inlet / outlet 120 and the second inlet / outlet 130 are spaced apart.

[0082] In the above scheme, the first inlet / outlet 120 and the second inlet / outlet 130, which are set at intervals, allow the fluid to pass through the internal flow channel of the valve body 100 along the axial direction, forming a smoother unidirectional flow path, reducing fluid resistance and pressure fluctuations, and at the same time facilitating the upward dissipation of bubbles after gas-liquid separation, thereby improving the gas-liquid separation effect.

[0083] In some other embodiments, one of the first inlet / outlet 120 and the second inlet / outlet 130 is an inlet, and the other of the first inlet / outlet 120 and the second inlet / outlet 130 is an outlet.

[0084] In the above scheme, the first inlet / outlet 120 can be used as either an inlet or an outlet, and the second inlet / outlet 130 can also be used as either an inlet or an outlet. In other words, the inlet and outlet of the microbubble valve can be determined according to actual usage needs, which facilitates use under different working conditions and improves ease of use.

[0085] In other embodiments, the first inlet / outlet 120 and the second inlet / outlet 130 are arranged opposite each other along the radial direction of the valve body 100.

[0086] In the above scheme, the first inlet / outlet 120 and the second inlet / outlet 130 arranged radially opposite each other can make the fluid inlet / outlet path more direct (approximately straight flow), avoid fluid turbulence caused by turning or offset layout, reduce the change of fluid medium flow direction, reduce energy loss, and help improve flow stability.

[0087] In other embodiments, please refer to Figure 3 and Figure 4 The exhaust assembly 400 includes a float body 410, a connecting rod 420 and a first sealing rod 430 connected in sequence. Along the axial direction X of the valve body 100, the float body 410 is movably disposed in the receiving cavity 110 and can selectively block the exhaust port 210 by driving the first sealing rod 430 through the connecting rod 420.

[0088] In the above scheme, the float body 410 is movably disposed in the receiving cavity 110 and the first sealing rod 430 is driven by the connecting rod 420 to selectively block the exhaust port 210. This ensures that the gas in the valve cavity can be smoothly discharged from the exhaust port 210, thus ensuring the stable operation of the microbubble valve.

[0089] The filtration process of the microbubble valve in this embodiment is briefly described below: The filter assembly 300 merges tiny bubbles into larger bubbles. These larger bubbles leave the liquid to form gas. When the microbubble valve vents, the gas pushes the float body 410 towards the end away from the valve cover 200 along the axial direction X of the valve body 100. The float body 410 is connected to the connecting rod 420, which can drive the first sealing rod 430 to move along the axial direction X of the valve body 100 and away from the exhaust port 210, allowing the gas to be discharged from the exhaust port 210. When the microbubble valve is not venting, the sealing rod blocks the exhaust port 210.

[0090] In other embodiments, please refer to Figure 3 , Figure 4 and Figure 5 The valve cover 200 is provided with a first protrusion 220 and a mounting sleeve 230. The first protrusion 220 and the mounting sleeve 230 are both provided on the side of the valve cover 200 facing the receiving cavity 110. The mounting sleeve 230 surrounds the mounting chamber 231 that communicates with the exhaust port 210.

[0091] The microbubble valve also includes a fixing member 500, which includes a first fixing part 510, a first elastic part 520 and a second fixing part 530 connected in sequence. The first fixing part 510 is snapped into the first protrusion 220, and the second fixing part 530 is sleeved on the mounting sleeve 230. The connecting rod 420 is rotatably disposed on the second fixing part 530. The first elastic part 520 is configured to press the second fixing part 530 against the side of the valve cover 200 facing the receiving cavity 110.

[0092] In the above scheme, the first elastic part 520 is configured to press the second fixing part 530 against the side of the valve cover 200 facing the receiving cavity 110, so that the second fixing part 530 can be fixed to the valve cover 200, providing a rotation fulcrum for the connecting rod 420.

[0093] Understandably, the first elastic part 520, as a core component, uses the pre-tightening force generated by elastic deformation (such as the rebound force of a spring or elastic sheet) to continuously press the second fixing part 530 against the inner wall of the valve cover 200. By providing pre-tightening force, the fixing part 500 is prevented from loosening, ensuring the relative positional accuracy of the connecting rod 420 assembly and the exhaust port 210, and improving the overall structural reliability.

[0094] Compared to traditional rigid connections (such as bolt tightening), elastic preload can compensate for thermal expansion and contraction caused by temperature changes, avoiding connection failure due to differences in the coefficients of thermal expansion of materials.

[0095] In addition, the first fixing part 510 is engaged with the first protrusion 220 to form a "positioning anchor point" to restrict the circumferential rotation of the fixing member 500; the second fixing part 530 is sleeved on the mounting sleeve 230 to provide radial constraint, ensuring the coaxiality of the connecting rod 420 assembly and the exhaust port 210, which helps to reduce displacement caused by fluid impact.

[0096] As an example, the second fixing part 530 may be provided with a mounting hole, which is fitted onto the mounting sleeve 230. When assembling the fixing member 500, the second fixing part 530 can be first fitted onto the mounting sleeve 230, and then the first fixing part 510 can be snapped onto the first protrusion 220. The snap-fit ​​installation method facilitates the assembly of the fixing member 500 and the valve cover 200. The first fixing part 510 can fix the fixing member 500 to the valve cover 200, and the first elastic part 520 can press the second fixing part 530 against the side of the valve cover 200 facing the receiving cavity 110. In this way, both the first fixing part 510 and the second fixing part 530 can be fixed to the valve cover 200, and the second fixing part 530 provides a rotation fulcrum for the connecting rod 420.

[0097] In other embodiments, please refer to Figure 4 and Figure 5The second fixing part 530 includes a second body 531 and a fixing piece 532. The second body 531 is connected to the first elastic part 520. The fixing piece 532 is disposed on the second body 531 and extends in a direction away from the valve cover 200. The second fixing part 530 is sleeved on the mounting sleeve 230. The connecting rod 420 is rotatably disposed on the fixing piece 532.

[0098] In the above scheme, along the axial direction X of the valve body 100, the fixing plate 532 extends in the direction away from the valve cover 200, so that the second body 531 and the fixing plate together form a cantilever structure. The fixing plate 532 can be provided with corresponding shaft holes or pin holes, and the connecting rod 420 can be inserted into the corresponding shaft holes or pin holes on the fixing plate 532. The connecting rod 420 is rotatably set in the corresponding shaft holes or pin holes, thereby driving the first sealing rod 430 to block or open the exhaust port 210.

[0099] The fixed plate 532 provides a pivot point for the connecting rod 420, which ensures that the connecting rod 420 can rotate in a plane around the corresponding pivot point of the fixed plate 532, thus preventing the sealing rod from tilting due to the multi-dimensional movement of the connecting rod 420 and ensuring the normal operation of the microbubble valve.

[0100] In other embodiments, please refer to Figure 3 and Figure 6 The microbubble valve also includes a filter support 600, which is disposed in the receiving cavity 110. The filter support 600 surrounds a guide chamber 610, which is connected to the receiving cavity 110. The guide chamber 610 cooperates with the float body 410 and guides the float body 410 in the axial direction X of the valve body 100.

[0101] In the above scheme, the cooperation between the guide chamber 610 and the float body 410 (such as cylindrical contact, slider-groove structure) can limit the radial sway of the float body 410, so that it only moves along the axial direction X (main flow direction of fluid) of the valve body 100. This can prevent the float body 410 from being laterally offset due to fluid turbulence or bubble impact force, avoid friction and jamming with the inner wall of the valve body 100, and ensure the smooth operation of the valve.

[0102] When the amount of bubbles in the fluid suddenly increases, the float body 410 rises due to buoyancy. If there is no guide, it may tilt due to lateral force and get stuck on the inner wall of the valve body 100, causing the exhaust port 210 to fail to open normally. The guide structure can ensure that the float body 410 rises quickly in a straight line, improving exhaust efficiency.

[0103] In other embodiments, please refer to Figure 3 and Figure 6The filter support 600 includes a base plate 620 and an annular side plate 630 disposed on the base plate 620. Along the axial direction X of the valve body 100, the annular side plate 630 is disposed on the side of the base plate 620 near the valve cover 200, and the annular side plate 630 and the base plate 620 enclose a guide chamber 610.

[0104] In the above scheme, the annular side plate 630 extends along the axial direction X (i.e., the main flow direction of the fluid) of the valve body 100, forming a rigid frame with the base plate 620. This structure can withstand the axial force (such as buoyancy and fluid impact force) when the float body 410 moves, and avoid the shape displacement of the guide chamber 610 due to deformation.

[0105] Meanwhile, the filter bracket 600 can be disassembled as an independent module (e.g., the base plate 620 is connected to the valve body 100 by bolts), and the cooperation between the annular side plate 630 and the float body 410 allows it to be directly removed along the axis of the valve body 100, improving ease of use.

[0106] In other embodiments, please refer to Figure 3 and Figure 6 The filter support 600 also includes a guide post 640, which is fixed to the side of the base plate 620 facing the valve cover 200. The float body 410 has a limiting channel 411 that cooperates with the guide post 640. Both the limiting channel 411 and the guide post 640 extend along the axial direction X of the valve body 100.

[0107] In the above scheme, the float body 410 has a limiting channel 411 that cooperates with the guide post 640. Both the limiting channel 411 and the guide post 640 extend along the axial direction X of the valve body 100. This can prevent the float body 410 from colliding with the peripheral wall of the valve body 100, reduce the noise of the microbubble valve, and reduce the wear of the microbubble valve. On the other hand, it can also ensure that the float body 410 accurately drives the first sealing rod 430 to block or open the exhaust port 210, thereby improving the operating performance of the microbubble valve.

[0108] In other embodiments, please refer to Figure 3 and Figure 6 The base plate 620 has multiple first through holes 621, and the annular side plate 630 has multiple second through holes 631. The multiple first through holes 621 and the multiple second through holes 631 are all connected to the guide chamber 610 and the receiving chamber 110.

[0109] In the above scheme, fluid can flow between the guide chamber 610 and the receiving chamber 110 through at least one of the first through hole 621 and the second through hole 631, and bubbles can move between the guide chamber 610 and the receiving chamber 110 through at least one of the first through hole 621 and the second through hole 631. That is to say, the first through hole 621 of the plate and the second through hole 631 of the annular side plate 630 together form a "three-dimensional through" flow channel, which improves the flow efficiency of the medium in the microbubble valve.

[0110] In other embodiments, please refer to Figure 3 and Figure 4 The first sealing rod 430 includes a rod body 431 and a sealing part 432. One end of the rod body 431 is connected to the connecting rod 420, and the other end of the rod body 431 is connected to the sealing part 432.

[0111] The exhaust assembly 400 also includes a sealing ring 440, which is disposed on the side of the valve cover 200 facing the receiving cavity 110 and surrounding the exhaust port 210. The sealing part 432 has a sealing surface 432a that cooperates with the sealing ring 440, and the sealing surface 432a is constructed as an arc surface.

[0112] In the above scheme, the arc surface of the sealing part 432 forms a "surface contact" seal with the sealing ring 440, and the sealing area is larger. On the one hand, it improves the sealing reliability of the exhaust port 210. On the other hand, when the exhaust port 210 is venting, the bubbles can gather at the highest point of curvature (apex) due to buoyancy, form a bubble cluster and then be discharged through the exhaust port 210, thereby improving the venting efficiency.

[0113] In other embodiments, please refer to Figure 3 and Figure 7 The filter assembly 300 includes: a plurality of first rings 310, arranged at intervals along the axial direction X of the valve body 100; a plurality of first rod groups 320, each first rod group 320 being disposed radially inside the corresponding first ring 310, each first rod group 320 including a plurality of first rods 321, each first rod 321 extending radially along the first ring 310, the plurality of first rods 321 being arranged at intervals along the circumference of the first ring 310; a plurality of connecting plates 330, arranged at intervals along the circumference of the first ring 310, each connecting plate 330 connecting a plurality of first rings 310 along the axial direction X of the valve body 100, each connecting plate 330 being provided with a plurality of spaced second rods 331, the plurality of second rods 331 being disposed radially inside the first ring 310 and extending radially along the first ring 310.

[0114] In the above scheme, multiple first rings 310 are spaced apart along the axial direction X of the valve body 100, and multiple second rods 331 are spaced apart. This can form a multi-layer filter barrier, extend the filter path, and enable the filter assembly 300 to merge more micro bubbles into large bubbles, thereby improving the filtration performance of the filter assembly 300.

[0115] Understandably, along the axial direction X of the valve body 100, each second rod 331 is positioned between two adjacent first rings 310. The projections of the first rod 321 and the second rod 331 do not overlap along the axial direction X of the valve body 100, thus improving the filtration performance of the filter assembly 300. For example, both the first rod 321 and the second rod 331 can be constructed as needle-like structures. In a gas-liquid mixture, the filter assembly 300 can increase the gas-liquid contact area through its mesh structure, promoting the coalescence of microbubbles (small bubbles merging into larger bubbles), thereby improving subsequent separation efficiency.

[0116] Along the axial direction X of the valve body 100, multiple first rings 310 are spaced apart, and multiple second rods 331 are spaced apart. This forms a multi-layered filtration barrier, extends the filtration path, and enables the filter screen to merge more micro bubbles into larger bubbles, thereby improving the filtration performance of the filter screen.

[0117] As an example, the filter assembly 300 may also be a metal wire mesh filter, a polymer filter, a composite structure filter, or an irregularly shaped structure filter; this application does not limit this.

[0118] Metal wire mesh filters include stainless steel woven mesh and sintered metal mesh, and this application does not limit the types. Stainless steel woven mesh is made of stainless steel wire woven into diamond or square mesh openings, with a mesh precision typically ranging from 20 to 200 meshes (pore diameter approximately 80μm-800μm), which can be customized according to bubble size. Sintered metal mesh is made of multiple layers of metal wire mesh composited through a sintering process, forming a gradient pore structure (e.g., fine pores on the surface + coarse pores in the inner layer).

[0119] Polymer filter mesh includes nylon (PA) or polypropylene (PP) woven mesh and polytetrafluoroethylene (PTFE) sintered mesh, and this application does not limit the types of meshes used.

[0120] Composite structure filters include a combination of metal mesh and guide plate, or a filter with an electrostatic adsorption layer.

[0121] The combined structure of metal mesh and guide plate involves welding a guide plate (such as an arc or inclined plate) to the back of the metal wire mesh to guide the fluid evenly through the filter.

[0122] The filter screen with an electrostatic adsorption layer is made by coating the filter screen surface with an electrostatic adsorption coating (such as nano-silica modified material) to generate electrostatic attraction for microbubbles.

[0123] Irregularly shaped filter screens include pleated filter screens and spiral wound filter screens, and this application does not limit them.

[0124] A pleated filter screen is a filter screen that is folded into a wavy structure to increase the filtration area.

[0125] Spiral wound filter screen is a filter screen in which metal wires are wound around a skeleton in a spiral pattern to form a filter screen with gradually changing pore channels.

[0126] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0127] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0128] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0129] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A microbubble valve, characterized by, include: The valve body (100) has a receiving cavity (110). The valve body (100) has a first liquid inlet / outlet (120) and a second liquid inlet / outlet (130). The first liquid inlet / outlet (120) and the second liquid inlet / outlet (130) are respectively connected to the receiving cavity (110). A valve cover (200) is disposed on the valve body (100), and the valve cover (200) has an exhaust port (210) which communicates with the receiving cavity (110); A filter assembly (300) is disposed within the receiving cavity (110), at least a portion of the filter assembly (300) being located between the first inlet / outlet (120) and the second inlet / outlet (130); An exhaust assembly (400) is disposed within the receiving cavity (110), the exhaust assembly (400) being adapted to selectively block the exhaust port (210); The valve body (100) further includes a valve cover opening (140), and the valve cover (200) is disposed on the valve body (100) to block the valve cover opening (140). Along the axial direction (X) of the valve body (100), one of the first liquid inlet / outlet (120) and the second liquid inlet / outlet (130) is disposed opposite to the valve cover opening (140). The valve body (100) is an integrally formed part.

2. The microvalve of claim 1, wherein, Along the axial direction (X) of the valve body (100), the first inlet / outlet (120) and the second inlet / outlet (130) are spaced apart.

3. The microvalve of claim 1 wherein, One of the first liquid inlet / outlet (120) and the second liquid inlet / outlet (130) is a liquid inlet, and the other of the first liquid inlet / outlet (120) and the second liquid inlet / outlet (130) is a liquid outlet.

4. The microvalve of claim 1 wherein, Along the radial direction of the valve body (100), the first inlet / outlet (120) and the second inlet / outlet (130) are arranged opposite to each other.

5. The microvalve of claim 1 wherein, The exhaust assembly (400) includes a float body (410), a connecting rod (420), and a first sealing rod (430) connected in sequence. Along the axial direction (X) of the valve body (100), the float body (410) is movably disposed in the receiving cavity (110) and the first sealing rod (430) is driven by the connecting rod (420) to selectively block the exhaust port (210).

6. The microvalve of claim 5 wherein, The valve cover (200) is provided with a first protrusion (220) and a mounting sleeve (230). The first protrusion (220) and the mounting sleeve (230) are both provided on the side of the valve cover (200) facing the receiving cavity (110). The mounting sleeve (230) surrounds a mounting chamber (231) that communicates with the exhaust port (210). The microbubble valve also includes a fixing member (500), which includes a first fixing part (510), a first elastic part (520), and a second fixing part (530) connected in sequence. The first fixing part (510) is engaged with the first protrusion (220), and the second fixing part (530) is sleeved on the mounting sleeve (230). The connecting rod (420) is rotatably disposed on the second fixing part (530). The first elastic part (520) is configured to press the second fixing part (530) against the side of the valve cover (200) facing the receiving cavity (110).

7. The microvalve of claim 6 wherein, The second fixing part (530) includes a second body (531) and a fixing piece (532). The second body (531) is connected to the first elastic part (520). The fixing piece (532) is disposed on the second body (531) and extends in a direction away from the valve cover (200). The second fixing part (530) is sleeved on the mounting sleeve (230). The connecting rod (420) is rotatably disposed on the fixing piece (532).

8. The microvalve of claim 5 wherein, The microbubble valve also includes a filter support (600), which is disposed in the receiving cavity (110). The filter support (600) surrounds a guide chamber (610), which communicates with the receiving cavity (110). The guide chamber (610) cooperates with the float body (410) and guides the float body (410) in the axial (X) direction of the valve body (100).

9. The microvalve of claim 8, wherein, The filter support (600) includes a base plate (620) and an annular side plate (630) disposed on the base plate (620). Along the axial direction (X) of the valve body (100), the annular side plate (630) is disposed on the side of the base plate (620) near the valve cover (200), and the annular side plate (630) and the base plate (620) enclose the guide chamber (610).

10. The microvalve of claim 9, wherein, The filter support (600) also includes a guide post (640), which is fixed to the bottom plate (620) on the side facing the valve cover (200). The float body (410) has a limiting channel (411) that cooperates with the guide post (640). Both the limiting channel (411) and the guide post (640) extend along the axial direction (X) of the valve body (100).

11. The microvalve of claim 9 wherein, The base plate (620) has a plurality of first through holes (621), and the annular side plate (630) has a plurality of second through holes (631). The plurality of first through holes (621) and the plurality of second through holes (631) are connected to the guide chamber (610) and the receiving chamber (110).

12. The microvalve of claim 11, wherein, The first sealing rod (430) includes a rod body (431) and a sealing part (432). One end of the rod body (431) is connected to the connecting rod (420), and the other end of the rod body (431) is connected to the sealing part (432). The exhaust assembly (400) further includes a sealing ring (440) disposed on the side of the valve cover (200) facing the receiving cavity (110) and surrounding the exhaust port (210). The sealing part (432) has a sealing surface (432a) that mates with the sealing ring (440), and the sealing surface (432a) is constructed as an arc surface.

13. The microvalve of claim 1, wherein, The filter assembly (300) includes: Multiple first rings (310) are spaced apart along the axial direction (X) of the valve body (100); Multiple first rod groups (320), each first rod group (320) is disposed radially inside the corresponding first ring (310), each first rod group (320) includes multiple first rods (321), each first rod (321) extends radially along the first ring (310), and the multiple first rods (321) are circumferentially spaced along the first ring (310); Multiple connecting plates (330) are spaced apart along the circumference of the first ring (310). Along the axial direction (X) of the valve body (100), each connecting plate (330) connects to multiple first rings (310). Each connecting plate (330) is provided with multiple spaced second rods (331). The multiple second rods (331) are located radially inside the first ring (310) and extend radially along the first ring (310).

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