Microbubble valve

Abstract

This application relates to the field of exhaust valve technology and discloses a microbubble valve. The microbubble valve includes a valve body, a filter screen, and a valve cover. The valve body has a receiving cavity, one end of which is open to form a valve cover opening. The valve body is provided with an inlet and an outlet respectively communicating with the receiving cavity. The inlet and outlet are spaced apart along the axial direction of the valve body, and the valve body is constructed as a single molded part. The filter screen is disposed in the receiving cavity, at least a portion of which is located between the inlet and outlet. The filter screen is used to separate air bubbles in the liquid. The valve cover is disposed on the valve body to seal the valve cover opening. The valve cover is provided with an exhaust port. Along the axial direction of the valve body, the valve cover and the outlet are located on opposite sides of the filter screen. The microbubble valve also includes a pressure relief port disposed on the valve body. This invention solves the technical problems of microbubble valves being of a split construction, having high manufacturing cost and large size, and lacking a pressure relief port, which easily leads to damage to the microbubble valve.

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 heat 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 as separate units, which are costly to manufacture and bulky. Furthermore, the lack of a pressure relief port on the microbubble valve makes it prone to damage. Utility Model Content

[0004] This application provides a microbubble valve, which solves the technical problems of microbubble valves having a split structure, high manufacturing cost, large size, and no pressure relief port, which easily leads to damage to the microbubble valve.

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

[0006] This application provides a microbubble valve, which includes a valve body, a filter screen, and a valve cover. The valve body has a receiving cavity, one end of which is open to form a valve cover opening. The valve body is provided with a first inlet / outlet and a second inlet / outlet that are respectively connected to the receiving cavity. The valve body is constructed as an integrally molded part. The filter screen is disposed in the receiving cavity, and at least a portion of the filter screen is located between the first inlet / outlet and the second inlet / outlet. The valve cover is disposed on the valve body to seal the valve cover opening. The valve cover is provided with a vent. Along the axial direction of the valve body, the valve cover and the second inlet / outlet are located on opposite sides of the filter screen. The microbubble valve also includes a pressure relief port disposed on the valve body.

[0007] The microbubble valve proposed in this application has a valve body constructed as an integral molded part, which can reduce the risk of liquid leakage and improve structural strength and sealing performance. The microbubble valve also includes a pressure relief port disposed in the valve body, so that when the internal pressure of the receiving cavity is too high, the pressure relief port can relieve the pressure of the liquid inside the receiving cavity, ensuring the normal operation of the microbubble valve.

[0008] Optionally, the microbubble valve may also include a backup valve port, which is connected to the receiving cavity.

[0009] The spare valve port can be used to replace the pressure relief port for pressure relief, ensuring the stability and reliability of the microbubble valve operation.

[0010] 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.

[0011] This extends the flow path of the liquid within the containment cavity, allowing the liquid to come into more thorough contact with the filter screen and improving the efficiency of bubble separation.

[0012] Optionally, the valve body also includes a bottom wall and a peripheral wall. The peripheral wall is disposed on the outer periphery of the bottom wall along the axial direction of the valve body. The bottom wall is disposed opposite to the valve cover opening. One of the first inlet / outlet and the second inlet / outlet is disposed on the bottom wall, and the other is disposed on the peripheral wall.

[0013] One of the first and second inlet / outlet ports is located on the bottom wall, while the other is located on the peripheral wall. This changes the flow direction of the liquid within the containment cavity, slows down the liquid flow rate, and allows the liquid to be filtered more thoroughly by the filter screen. The filter screen can also more effectively combine the tiny bubbles in the liquid, thus improving the performance of the microbubble valve.

[0014] Optionally, the microbubble valve 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] The float body is movably disposed in the receiving cavity and can selectively block the exhaust port by driving the first sealing rod through the connecting rod. 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 the first protrusion and the mounting sleeve are located on the side of the valve cover facing the receiving cavity. The mounting sleeve encloses a mounting chamber that communicates with the exhaust port. 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 engaged with the first protrusion, and the second fixing part is sleeved on the mounting sleeve. 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.

[0017] The first elastic part is configured to press the second fixing part against the side of the valve cover facing the receiving cavity, thereby fixing the second fixing part to the valve cover and providing a pivot point for the connecting rod.

[0018] 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.

[0019] 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. This prevents the first sealing rod from tilting due to the multi-dimensional movement of the connecting rod, thus ensuring the normal operation of the microbubble valve.

[0020] Optionally, the microbubble valve also includes a baffle. Along the axial direction of the valve body, the baffle is disposed between the float body and the filter screen. The baffle is provided with a flow guide hole, which penetrates the baffle along the axial direction of the valve body.

[0021] The filter screen filters the liquid, and the resulting gas can pass through the guide hole and the baffle into the chamber between the baffle and the valve cover. The gas can be discharged from the receiving chamber through the exhaust port, improving the exhaust efficiency of the microbubble valve.

[0022] Optionally, the microbubble valve also includes a guide post, which is fixed to the side of the baffle facing the exhaust port. 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.

[0023] 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 block or open the exhaust port, thereby improving the operating performance of the microbubble valve.

[0024] Optionally, the inner wall of the valve body is further provided with a first annular groove, and the microbubble valve also includes two retaining rings. Along the axial direction of the valve body, the two retaining rings abut against the upper and lower walls of the first annular groove, respectively, and the baffle is located between the two retaining rings and abuts against the two retaining rings, respectively.

[0025] The baffle is located between the two retaining rings and abuts against each of the two retaining rings. This allows the baffle to be disassembled and replaced simply by removing the two retaining rings when the baffle needs to be replaced or upgraded, without damaging the valve body or pipeline structure, thus improving the maintenance efficiency of the microbubble valve.

[0026] Optionally, one of the first inlet / outlet and the second inlet / outlet is the inlet, and the other is the outlet.

[0027] This improves the interchangeability and compatibility of the first and second inlet / outlet ports.

[0028] Optionally, the first inlet / outlet and the second inlet / outlet are arranged opposite each other along the radial direction of the valve body.

[0029] This allows the microbubble valve to adapt to the liquid flow requirements of different systems, enhancing the versatility of the equipment.

[0030] Optionally, the filter screen includes multiple first rings, multiple first rod groups, and multiple connecting plates. The multiple first rings are spaced apart along the axial direction of the valve body. Each first rod group is located radially inside the corresponding first ring, and each first rod group includes multiple first rods. Each first rod extends radially along the first ring, and the multiple first rods are spaced apart circumferentially along the first ring. Multiple connecting plates are spaced apart circumferentially along the first ring. Each connecting plate connects multiple first rings along the axial direction of the valve body, and each connecting plate is provided with multiple spaced second rods. The multiple second rods are located radially inside the first ring and extend radially along the first ring.

[0031] Along the axial direction of the valve body, multiple first rings are spaced apart, and multiple second rods are spaced apart. This forms a multi-layered filtration barrier, extends the filtration path, and allows the filter screen to merge more micro bubbles into larger bubbles, thereby improving the filtration performance of the filter screen. Attached Figure Description

[0032] 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.

[0033] Figure 1 This is a schematic diagram of the structure of the microbubble valve provided in the embodiments of this application;

[0034] Figure 2 A top view of the microbubble valve provided in an embodiment of this application;

[0035] Figure 3 for Figure 2 Sectional view in the AA direction;

[0036] Figure 4 This is a schematic diagram of the structure of the first sealing rod and the fixing member provided in the embodiments of this application;

[0037] Figure 5 This is a schematic diagram of the structure of the filter screen provided in an embodiment of this application.

[0038] [Explanation of Labels in the Attached Image]

[0039] 1000, Microbubble valve;

[0040] 100. Valve body; 101. Receiving cavity; 102. Valve cover opening; 103. First liquid inlet; 104. Second liquid inlet / outlet; 105. Bottom wall; 106. Peripheral wall; 107. First annular groove;

[0041] 110. Filter screen; 111. First ring; 112. First rod; 113. Second rod; 114. Connecting plate;

[0042] 120. Valve cover;

[0043] 130. Exhaust port;

[0044] 140. Pressure relief port;

[0045] 150. Spare valve port;

[0046] 160. Float body; 161. Limiting channel;

[0047] 170. Connecting rod;

[0048] 180. First sealing rod; 181. Sealing part;

[0049] 190. First protrusion;

[0050] 200. Install the sleeve; 201. Install the chamber;

[0051] 210. Fixing member; 211. First fixing part; 212. First elastic part; 213. Second fixing part; 2130. Second body; 2131. Fixing piece;

[0052] 220. Baffle; 221. Flow guide hole;

[0053] 230. Guide post;

[0054] 240. Retaining ring;

[0055] 250. Sealing ring;

[0056] X, the axial direction of the valve body. Detailed Implementation

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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).

[0063] 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.

[0064] To address the problems caused by tiny air bubbles in refrigerants or liquids, microbubble valves are typically used to remove these bubbles. However, most microbubble valves in related technologies employ a split-type structure. This design not only complicates the manufacturing process due to the processing and assembly of multiple components, increasing labor and material costs, but also results in a relatively large overall size, severely limiting their use in space-constrained installation environments. Furthermore, microbubble valves lack pressure relief ports. When the internal pressure of the system abnormally rises, the excessive pressure cannot be released in time, easily causing damage to the valve seals, deformation of the valve body, or even bursting. This seriously affects the safety and reliability of the equipment, increasing system maintenance costs and downtime risks.

[0065] In view of this, this application proposes a microbubble valve, which includes a valve body, a filter screen, and a valve cover. The valve body has a receiving cavity, one end of which is open to form a valve cover opening. The valve body is provided with a first inlet / outlet and a second inlet / outlet respectively communicating with the receiving cavity. The first inlet / outlet and the second inlet / outlet are spaced apart along the axial direction of the valve body, and the valve body is constructed as an integral molded part. The filter screen is disposed in the receiving cavity, and at least a portion of the filter screen is located between the first inlet / outlet and the second inlet / outlet along the axial direction of the valve body. The filter screen is used to separate air bubbles in the liquid. The valve cover is disposed on the valve body to seal the valve cover opening. The valve cover is provided with an exhaust port, and the valve cover and the second inlet / outlet are located on opposite sides of the filter screen along the axial direction of the valve body. The microbubble valve also includes a pressure relief port disposed on the valve body, and the pressure relief port is located between the first inlet / outlet and the second inlet / outlet along the axial direction of the valve body.

[0066] In the above scheme, the valve body is constructed as a one-piece molded part, which can reduce the risk of liquid leakage, improve structural strength and sealing performance. Along the axial direction of the valve body, the pressure relief port is located between the first inlet / outlet and the second inlet / outlet. In this way, when the pressure inside the receiving cavity is too high, the pressure relief port can relieve the pressure of the liquid inside the receiving cavity, ensuring the normal operation of the microbubble valve.

[0067] For ease of explanation, the following embodiments use a microbubble valve according to an embodiment of this application as an example.

[0068] Figure 1 This is a schematic diagram of the structure of the microbubble valve provided in the embodiments of this application; Figure 2 A top view of the microbubble valve provided in an embodiment of this application; Figure 3 for Figure 2 Sectional view in the AA direction; Figure 4 This is a schematic diagram of the structure of the first sealing rod and the fixing member provided in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the filter screen provided in an embodiment of this application.

[0069] Please refer to Figures 1 to 5In this embodiment, the microbubble valve 1000 includes a valve body 100, a filter screen 110, and a valve cover 120. The valve body 100 has a receiving cavity 101, one end of which is open to form a valve cover opening 102. The valve body 100 is provided with a first inlet / outlet 103 and a second inlet / outlet 104 respectively communicating with the receiving cavity 101. The valve body 100 is constructed as an integral molded part. The filter screen 110 is disposed in the receiving cavity 101, and at least a portion of the filter screen 110 is located between the first inlet / outlet 103 and the second inlet / outlet 104. The valve cover 120 is disposed on the valve body 100 to block the valve cover opening 102. The valve cover 120 is provided with an exhaust port 130. Along the axial direction X of the valve body, the valve cover 120 and the second inlet / outlet 104 are located on both sides of the filter screen 110. The microbubble valve 1000 also includes a pressure relief port 140 disposed on the valve body 100.

[0070] Liquid enters the receiving cavity 101 through the first inlet / outlet 103, passes through the filter screen 110, and then flows out of the receiving cavity 101 through the second inlet / outlet 104. The filter screen 110 can be constructed as a mesh structure. In a gas-liquid mixture, the filter screen 110 can increase the gas-liquid contact area through its mesh structure, promoting the coalescence of microbubbles (small bubbles merging into large bubbles), thereby improving the subsequent separation efficiency. The filter screen 110 is used to separate microbubbles in the liquid. When the liquid passes through the filter screen 110, the microbubbles in the liquid can merge together to form large bubbles, and then the large bubbles rise under the action of buoyancy. The valve cover 120 is provided with an exhaust port 130. After large bubbles float to the surface of the liquid, they turn into gas and can be discharged from the exhaust port 130 along the axial direction X of the valve body. The filter screen 110 can be set between the first inlet / outlet 103 and the second inlet / outlet 104. A part of the filter screen 110 can also be located between the first inlet / outlet 103 and the valve cover 120, which can reduce the probability that the liquid cannot be filtered by the filter screen 110.

[0071] The valve body 100 is constructed as a single molded component. This one-piece molding process avoids the risk of liquid leakage caused by seams in a split valve body 100, thus improving structural strength and sealing performance. For example, the valve body 100 can be made of corrosion-resistant materials such as stainless steel or engineering plastics. Moreover, as a single molded component, compared to a split valve body 100, there is no need for additional connecting structures to connect the valve body 100, reducing the internal space occupied by the valve body 100 and improving the utilization rate of the internal space.

[0072] For example, the valve cover 120 can be detachably installed at the valve cover opening 102, which facilitates maintenance personnel to clean or replace the components inside the receiving cavity 101. When the pressure of the liquid inside the receiving cavity 101 is too high, the abnormal pressure in the receiving cavity 101 can be released through the pressure relief port 140, ensuring the safe and stable operation of the microbubble valve 1000. A pressure relief valve can be installed on the pressure relief port 140. When it is necessary to release the pressure inside the microbubble valve 1000, the pressure relief valve can be opened to release the internal pressure of the microbubble valve 1000. The pressure relief port 140 is located between the first inlet / outlet port 103 and the second inlet / outlet port 104, which ensures that when the liquid pressure inside the receiving cavity 101 is too high, the liquid can be relieved through the pressure relief port 140.

[0073] Please refer to Figures 1 to 5 In this embodiment, the microbubble valve 1000 also includes a spare valve port 150, which is connected to the receiving cavity 101. Along the axial direction X of the valve body, the pressure relief port 140 and the spare valve port 150 are spaced apart.

[0074] Along the axial direction X of the valve body, a backup valve port 150 can be located between the first inlet / outlet port 103 and the second inlet / outlet port 104. For example, the backup valve port 150 can be used to connect a bypass. If the main pipeline of the second inlet / outlet port 104 fails and requires repair, the backup valve port 150 can be connected to the bypass to maintain continuous system operation. The backup valve port 150 can also be reserved for future functional expansion; for example, it can be connected to a chemical injection device, avoiding a redesign of the valve body 100 structure and reducing modification costs. When the backup valve port 150 is not in use, it can be sealed with a plug. In the event of a failure of the pressure relief port 140, the backup valve port 150 can replace the pressure relief port 140 to relieve pressure in the receiving cavity 101.

[0075] Please refer to Figures 1 to 5 In this embodiment, along the axial direction X of the valve body, the first inlet / outlet 103 and the second inlet / outlet 104 are spaced apart.

[0076] This extends the flow path of the liquid within the receiving cavity 101, allowing the liquid to fully contact the filter screen 110 and improving the separation efficiency of bubbles. Furthermore, the first inlet / outlet 103 and the second inlet / outlet 104 are spaced apart along the axial direction X of the valve body, which reduces the space occupied by the microbubble valve 1000 in the radial direction of the valve body 100.

[0077] Please refer to Figures 1 to 5In this embodiment, the valve body 100 further includes a bottom wall 105 and a peripheral wall 106. The peripheral wall 106 is disposed on the outer periphery of the bottom wall 105 along the axial direction X of the valve body. The bottom wall 105 is disposed opposite to the valve cover opening 102. One of the first liquid inlet / outlet 103 and the second liquid inlet / outlet 104 is disposed on the bottom wall 105, and the other is disposed on the peripheral wall 106.

[0078] Liquid enters the receiving cavity 101 through the first inlet / outlet 103 located on the peripheral wall 106, and then exits the receiving cavity 101 through the second inlet / outlet 104 located on the bottom wall 105. For example, the axial direction X of the valve body can be parallel to the vertical direction. The height of the first inlet / outlet 103 is higher than that of the second inlet / outlet 104. After entering the first inlet / outlet 103, the liquid will not directly impact the second inlet / outlet 104. The flow direction of the liquid within the receiving cavity 101 changes, the liquid velocity decreases, and the liquid can be more fully filtered by the filter screen 110. The filter screen 110 can more effectively merge the microbubbles in the liquid, improving the working performance of the microbubble valve 1000.

[0079] Please refer to Figures 1 to 5 In this embodiment, the microbubble valve 1000 includes a float body 160, a connecting rod 170 and a first sealing rod 180 connected in sequence. Along the axial direction X of the valve body, the float body 160 is movably disposed in the receiving cavity 101 and can selectively block the exhaust port 130 by driving the first sealing rod 180 through the connecting rod 170.

[0080] The filter screen 110 merges tiny bubbles into larger bubbles. These larger bubbles leave the liquid to form gas. When the microbubble valve 1000 vents, the gas pushes the float body 160 along the axial direction X of the valve body, moving it away from the valve cover 120. The float body 160 is connected to the connecting rod 170, which in turn moves the first sealing rod 180 along the axial direction X of the valve body, away from the exhaust port 130, allowing gas to escape from the exhaust port 130. When the microbubble valve 1000 is not venting, the first sealing rod 180 blocks the exhaust port 130 under the action of the spring.

[0081] For example, the first sealing rod 180 includes a sealing part 181, and a sealing ring 250 is provided between the sealing part 181 and the vent 130. The sealing part 181 has an arc surface, and the arc surface abuts against the sealing ring 250, thereby sealing the vent 130 when no air is vented.

[0082] Please refer to Figures 1 to 5In this embodiment, the valve cover 120 is provided with a first protrusion 190 and a mounting sleeve 200. The first protrusion 190 and the mounting sleeve 200 are both provided on the side of the valve cover 120 facing the receiving cavity 101. The mounting sleeve 200 surrounds the mounting chamber 201 that communicates with the exhaust port 130. The microbubble valve 1000 also includes a fixing member 210. The fixing member 210 includes a first fixing part 211, a first elastic part 212 and a second fixing part 213 connected in sequence. The first fixing part 211 is snapped into the first protrusion 190. The second fixing part 213 is sleeved on the mounting sleeve 200. The connecting rod 170 is rotatably disposed on the second fixing part 213. The first elastic part 212 is configured to press the second fixing part 213 against the side of the valve cover 120 facing the receiving cavity 101.

[0083] The second fixing part 213 may be provided with a mounting hole, which is fitted onto the mounting sleeve 200. When assembling the fixing member 210, the second fixing part 213 can be first fitted onto the mounting sleeve 200, and then the first fixing part 211 can be snapped onto the first protrusion 190. The snap-fit ​​installation method facilitates the assembly of the fixing member 210 and the valve cover 120. The first fixing part 211 can fix the fixing member 210 to the valve cover 120, and the first elastic member can press the second fixing part 213 against the side of the valve cover 120 facing the receiving cavity 101. In this way, both the first fixing part 211 and the second fixing part 213 can be fixed to the valve cover 120. The second fixing part 213 provides a rotation fulcrum for the connecting rod 170.

[0084] Please refer to Figures 1 to 5 In this embodiment, the second fixing part 213 includes a second body 2130 and a fixing piece 2131. The second body 2130 is connected to the first elastic part 212. The fixing piece 2131 is disposed on the second body 2130 and extends in a direction away from the valve cover 120. The second fixing part 213 is sleeved on the mounting sleeve 200. The connecting rod 170 is rotatably disposed on the fixing piece 2131.

[0085] Along the axial direction X of the valve body, the fixing plate 2131 extends in the direction away from the valve cover 120, so that the second body 2130 and the fixing plate 2131 together form a cantilever structure. The fixing plate 2131 can be provided with corresponding shaft holes or pin holes, and the connecting rod 170 can be inserted into the corresponding shaft hole or pin hole on the fixing plate 2131. The connecting rod 170 is rotatably set in the corresponding shaft hole or pin hole, thereby driving the first sealing rod 180 to block or open the exhaust port 130.

[0086] The fixing plate 2131 provides a pivot point for the connecting rod 170, which ensures that the connecting rod 170 can rotate in a plane around the corresponding pivot point of the fixing plate 2131, thus preventing the first sealing rod 180 from tilting due to the multi-dimensional movement of the connecting rod 170 and ensuring the normal operation of the microbubble valve 1000.

[0087] Please refer to Figures 1 to 5 In this embodiment, the microbubble valve 1000 also includes a baffle 220. Along the axial direction X of the valve body, the baffle 220 is disposed between the float body 160 and the filter screen 110. A guide hole 221 is provided on the baffle 220. Along the axial direction X of the valve body, the guide hole 221 penetrates the baffle 220.

[0088] Along the axial direction X of the valve body, a baffle 220 is disposed between the float body 160 and the filter screen 110. This isolates the float body 160 from the filter screen 110, preventing the float from squeezing the filter screen 110 and improving the service life of the filter screen 110. The gas generated by the filter screen 110 filtering the liquid can pass through the guide hole 221, pass through the baffle 220, and enter the chamber between the baffle 220 and the valve cover 120. The gas can be discharged from the vent 130 into the receiving chamber 101, improving the venting efficiency of the microbubble valve 1000.

[0089] Please refer to Figures 1 to 5 In this embodiment, the microbubble valve 1000 also includes a guide post 230, which is fixed to the side of the baffle 220 facing the exhaust port 130. The float body 160 has a limiting channel 161 that cooperates with the guide post 230. Both the limiting channel 161 and the guide post 230 extend along the axial direction X of the valve body.

[0090] For example, the guide post 230 can be inserted into the limiting channel 161, and the guide post 230 can limit the float body 160. Both the limiting channel 161 and the guide post 230 extend along the axial direction X of the valve body. This ensures that the float body 160 moves along the axial direction X of the valve body. On the one hand, it can avoid collision between the float body 160 and the peripheral wall 106 of the valve body 100, reduce the noise of the microbubble valve 1000, and reduce the wear of the microbubble valve 1000. On the other hand, it can also ensure that the float body 160 accurately drives the first sealing rod 180 to block or open the exhaust port 130, thereby improving the operating performance of the microbubble valve 1000.

[0091] Please refer to Figures 1 to 5 In this embodiment, the inner wall of the valve body 100 is also provided with a first annular groove 107, and the microbubble valve 1000 also includes two retaining rings 240. Along the axial direction X of the valve body, the two retaining rings 240 abut against the upper and lower walls of the first annular groove 107 respectively, and the baffle 220 is located between the two retaining rings 240 and abuts against the two retaining rings 240 respectively.

[0092] For example, the opening of the first annular groove 107 can face the receiving cavity 101, and along the axial direction X of the valve body, the projections of the two retaining rings 240 do not coincide with the projection of the guide hole 221. The baffle 220 is fixed in the receiving cavity 101 by the two retaining rings 240, so that the baffle 220 does not need to be fixed in the receiving cavity 101 by welding or other methods, thus reducing damage to the material of the baffle 220 itself.

[0093] When the baffle 220 needs to be replaced or upgraded, the two retaining rings 240 can be removed to disassemble and replace the baffle 220 without damaging the valve body 100 or pipeline structure, thus improving the maintenance efficiency of the microbubble valve 1000.

[0094] Please refer to Figures 1 to 5 In this embodiment, one of the first liquid inlet / outlet 103 and the second liquid inlet / outlet 104 is a liquid inlet, and the other is a liquid outlet.

[0095] For example, liquid can enter the receiving cavity 101 from the first inlet / outlet 103 and flow out of the receiving cavity 101 from the first inlet / outlet 103. Liquid can also enter the receiving cavity 101 from the second inlet / outlet 104 and flow out of the receiving cavity 101 from the second inlet / outlet 104. This improves the interchangeability and compatibility of the first inlet / outlet 103 and the second inlet / outlet 104.

[0096] Please refer to Figures 1 to 5 In this embodiment, the first inlet / outlet 103 and the second inlet / outlet 104 are arranged opposite to each other along the radial direction of the valve body 100. This allows the microbubble valve 1000 to adapt to the liquid flow direction requirements of different systems, enhancing the versatility of the equipment.

[0097] Please refer to Figures 1 to 5 In this embodiment, the filter screen 110 includes a plurality of first rings 111, a plurality of first rod groups, and a plurality of connecting plates 114. The plurality of first rings 111 are spaced apart along the axial direction X of the valve body. Each first rod group is disposed on the radial inner side of the corresponding first ring 111. Each first rod group includes a plurality of first rods 112. Each first rod 112 extends radially along the first ring 111. The plurality of first rods 112 are spaced apart circumferentially along the first ring 111. The plurality of connecting plates 114 are spaced apart along the circumferential direction of the first ring 111. Each connecting plate 114 connects to the plurality of first rings 111 along the axial direction X of the valve body. Each connecting plate 114 is provided with a plurality of spaced second rods 113. The plurality of second rods 113 are disposed on the radial inner side of the first ring 111 and extend radially along the first ring 111.

[0098] Along the axial direction X of the valve body, each second rod 113 is disposed between two adjacent first rings 111. Along the axial direction X of the valve body, the projections of the first rod 112 and the second rod 113 do not coincide, which can improve the filtration performance of the filter screen 110. For example, both the first rod 112 and the second rod 113 can be constructed as needle-like structures.

[0099] Along the axial direction X of the valve body, multiple first rings 111 are spaced apart, and multiple second rods 113 are spaced apart. This forms a multi-layered filtration barrier, extends the filtration path, and enables the filter screen 110 to merge more micro bubbles into large bubbles, thereby improving the filtration performance of the filter screen 110.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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 (101), one end of which is open to form a valve cover opening (102). The valve body (100) is provided with a first liquid inlet / outlet (103) and a second liquid inlet / outlet (104) respectively communicating with the receiving cavity (101). The valve body (100) is constructed as an integral molded part. A filter screen (110) is disposed in the receiving cavity (101), at least a portion of the filter screen (110) being located between the first inlet / outlet (103) and the second inlet / outlet (104); A valve cover (120) is disposed on the valve body (100) to block the valve cover opening (102). The valve cover (120) is provided with an exhaust port (130) along the axial direction (X) of the valve body. The valve cover (120) and the second liquid inlet / outlet (104) are located on opposite sides of the filter screen (110). The microbubble valve also includes a pressure relief port (140) disposed on the valve body (100).

2. The microvalve of claim 1, wherein, The microbubble valve also includes a spare valve port (150), which is connected to the receiving cavity (101).

3. The microvalve of claim 1 wherein, Along the axial direction (X) of the valve body, the first inlet / outlet (103) and the second inlet / outlet (104) are spaced apart.

4. The microvalve of claim 3 wherein, The valve body (100) further includes a bottom wall (105) and a peripheral wall (106). The peripheral wall (106) is disposed on the outer periphery of the bottom wall (105) along the axial direction (X) of the valve body. The bottom wall (105) is disposed opposite to the valve cover opening (102). One of the first liquid inlet / outlet (103) and the second liquid inlet / outlet (104) is disposed on the bottom wall (105), and the other is disposed on the peripheral wall (106).

5. The microvalve of claim 1 wherein, The microbubble valve includes a float body (160), a connecting rod (170), and a first sealing rod (180) connected in sequence. Along the axial direction (X) of the valve body, the float body (160) is movably disposed in the receiving cavity (101) and the first sealing rod (180) is driven by the connecting rod (170) to selectively block the exhaust port (130).

6. The microvalve of claim 5, wherein, The valve cover (120) is provided with a first protrusion (190) and a mounting sleeve (200). The first protrusion (190) and the mounting sleeve (200) are both provided on the side of the valve cover (120) facing the receiving cavity (101). The mounting sleeve (200) surrounds a mounting chamber (201) that communicates with the exhaust port (130). The microbubble valve also includes a fixing member (210), which includes a first fixing part (211), a first elastic part (212), and a second fixing part (213) connected in sequence. The first fixing part (211) is engaged with the first protrusion (190), and the second fixing part (213) is sleeved on the mounting sleeve (200). The connecting rod (170) is rotatably disposed on the second fixing part (213). The first elastic part (212) is configured to press the second fixing part (213) against the side of the valve cover (120) facing the receiving cavity (101).

7. The microvalve of claim 6 wherein, The second fixing part (213) includes a second body (2130) and a fixing piece (2131). The second body (2130) is connected to the first elastic part (212). The fixing piece (2131) is disposed on the second body (2130) and extends in a direction away from the valve cover (120). The second fixing part (213) is sleeved on the mounting sleeve (200). The connecting rod (170) is rotatably disposed on the fixing piece (2131).

8. The microvalve of claim 5 wherein, The microbubble valve also includes a baffle (220) along the axial direction (X) of the valve body. The baffle (220) is disposed between the float body (160) and the filter screen (110). The baffle (220) is provided with a guide hole (221) along the axial direction (X) of the valve body. The guide hole (221) penetrates the baffle (220).

9. The microvalve of claim 8, wherein, The microbubble valve also includes a guide post (230), which is fixed to the side of the baffle (220) facing the exhaust port (130). The float body (160) has a limiting channel (161) that cooperates with the guide post (230). Both the limiting channel (161) and the guide post (230) extend along the axial direction (X) of the valve body.

10. The microvalve of claim 9, wherein, The inner wall of the valve body (100) is also provided with a first annular groove (107). The microbubble valve also includes two retaining rings (240). Along the axial direction (X) of the valve body, the two retaining rings (240) abut against the upper and lower walls of the first annular groove (107) respectively. The baffle (220) is located between the two retaining rings (240) and abuts against the two retaining rings (240) respectively.

11. The microvalve of claim 1 wherein, One of the first liquid inlet / outlet (103) and the second liquid inlet / outlet (104) is a liquid inlet, and the other is a liquid outlet.

12. The microvalve of claim 1, wherein, Along the radial direction of the valve body (100), the first inlet / outlet (103) and the second inlet / outlet (104) are arranged opposite to each other.

13. The microvalve of claim 1, wherein, The filter screen (110) includes: Multiple first rings (111) are spaced apart along the axial direction (X) of the valve body; Multiple first rod groups, each first rod group is disposed on the radial inner side of the corresponding first ring (111), each first rod group includes multiple first rods (112), each first rod (112) extends radially along the first ring (111), and the multiple first rods (112) are arranged circumferentially spaced along the first ring (111). Multiple connecting plates (114) are spaced apart along the circumference of the first ring (111). Along the axial direction (X) of the valve body, each connecting plate (114) connects to multiple first rings (111). Each connecting plate (114) is provided with multiple spaced second rods (113). The multiple second rods (113) are located radially inside the first ring (111) and extend radially along the first ring (111).

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