A smart adjustable anti-cavitation circular butterfly gate

Abstract

This utility model discloses an intelligent adjustable anti-cavitation circular butterfly gate, belonging to the field of butterfly gate technology. It includes a valve body and valve seats fixedly connected to both sides of the bottom of the valve body. A mounting base is fixedly connected to the center of the top surface of the valve body. A drive gear is fixedly connected to the output end of a servo motor. A valve shaft is rotatably connected to the left side of the mounting base, and the bottom end of the valve shaft extends into the valve body. A driven gear is fixedly connected to the top of the valve shaft, and the driven gear meshes with the drive gear. A valve plate is fixedly connected to the bottom of the valve shaft. Overflow holes are evenly distributed on the valve plate, and mounting holes are formed at the top of the overflow holes. An electric guide rod is fixedly connected to the mounting hole, and an overflow wedge is fixedly connected to the bottom of the electric guide rod. This intelligent adjustable anti-cavitation circular butterfly gate, through real-time monitoring by multiple sensors, combined with the action of the valve plate and the electric guide rod, can quickly respond to system flow and pressure fluctuations, avoiding adjustment lag and overshoot, and meeting the requirements of high-precision flow control.

Description

Technical Field

[0001] This utility model relates to the field of butterfly gate technology, specifically to an intelligent adjustable anti-cavitation circular butterfly gate. Background Technology

[0002] In the field of industrial fluid transportation and control, the circular butterfly gate, as a key device for regulating the flow and pressure of the medium, is widely used in petrochemical, power, municipal water supply and drainage and water resource regulation scenarios. With the continuous improvement of the requirements of various industries for fluid control accuracy, equipment reliability and operation and maintenance efficiency, the circular butterfly gate is being used in various industries.

[0003] For example, the patent with announcement number CN221880243U discloses an antifreeze butterfly valve, including a flange, an insulation sleeve, a first vacuum insulation chamber and a second vacuum insulation chamber. The outer side of the flange is fitted with an insulation sleeve, and the inside of the flange is provided with a first vacuum insulation chamber and a second vacuum insulation chamber. A sealing butterfly plate is provided inside the flange, and a fixing component is fixedly connected inside the sealing butterfly plate. The fixing component is connected to a connecting cylinder. The insulation sleeve is made of polyurethane.

[0004] However, existing devices cannot dynamically adjust valve opening based on real-time fluid parameters. When system flow or pressure fluctuates, problems such as adjustment lag and overshoot are prone to occur, making it difficult to meet the requirements of high-precision flow control. When the fluid flow is large, switching between opening and closing the valve is difficult, affecting the work progress. Furthermore, when the fluid flows through the valve, if the local flow velocity is too high, causing the pressure to drop below the fluid's saturated vapor pressure, a large number of bubbles will be generated. When the bubbles flow with the fluid to the high-pressure area, they will burst rapidly, generating strong impact pressure, which will cause serious corrosion to the valve plate, valve seat, and other core components of the valve.

[0005] Therefore, in order to solve such problems, we propose an intelligent adjustable anti-cavitation circular butterfly gate. Utility Model Content

[0006] The purpose of this invention is to provide an intelligent adjustable anti-cavitation circular butterfly gate to solve the problems mentioned in the background art. These problems include the inability of existing devices to dynamically adjust valve opening based on real-time fluid parameters, the tendency for adjustment lag and overshoot to occur when system flow or pressure fluctuates, making it difficult to meet high-precision flow control requirements, difficulties in switching valve opening and closing when fluid flow is large, impacting work progress, and the generation of numerous bubbles when fluid flows through the valve if local flow velocity is too high, causing pressure to drop below the fluid's saturated vapor pressure. These bubbles rapidly burst when flowing to high-pressure areas, generating strong impact pressure that severely corrodes the valve plate, valve seat, and other core components.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an intelligent adjustable anti-cavitation circular butterfly gate, comprising a valve body and valve seats fixedly connected to both sides of the bottom of the valve body, a mounting base fixedly connected to the middle of the top surface of the valve body, a servo motor fixedly connected to the top of the mounting base, a drive gear fixedly connected to the output end of the servo motor, a valve shaft rotatably connected to the left side of the mounting base, and the bottom end of the valve shaft extending into the valve body, a driven gear fixedly connected to the top of the valve shaft, and the driven gear meshing with the drive gear, a valve plate fixedly connected to the bottom of the valve shaft, overflow holes evenly opened on the valve plate, a mounting hole opened at the top of the overflow hole, an electric guide rod fixedly connected in the mounting hole, and an overflow inclined block fixedly connected to the bottom of the electric guide rod.

[0008] Furthermore, a sealing ring is fixedly connected to the outer wall of the valve plate, and the sealing ring is made of wear-resistant nitrile rubber.

[0009] Furthermore, a signal transmitter is embedded on the right outer wall of the mounting base, and guide rings are provided at both ends inside the valve body. Spiral guide patterns are formed on the inner wall of the guide rings. Flow sensors are uniformly fixedly connected to the outer end of the inner wall of the guide rings. Pressure sensors are fixedly connected to the adjacent sides of the flow sensors inside the guide rings, and the probes of the flow sensors and pressure sensors are in direct contact with the fluid. A temperature sensor is fixedly connected to the front outer wall of the valve body.

[0010] Furthermore, the valve body has evenly spaced grooves on both inner walls, and a slider adapted to the groove is provided in the groove. A buffer is fixedly connected to the inner end of the slider and is located in the groove. A buffer plate is fixedly connected between the sliders, and holes are evenly spaced on the buffer plate.

[0011] Furthermore, a cavitation sensor is installed inside the valve body on the right side near the valve plate, and the cavitation sensor is magnetically attached to the inner wall of the valve body. A water pump is embedded on the left outer wall of the mounting base, and a pipe is fixedly connected to the output end of the water pump. A spray ring is fixedly connected to the left side of the valve plate inside the valve body, and the pipe passes through the top of the spray ring. Spray heads are evenly fixedly connected to the outer wall of the spray ring on the side near the valve plate.

[0012] Furthermore, side pipes are fixedly connected to the outer walls of both ends of the valve body, and flanges are fixedly connected to the side of the side pipes away from the valve body, with the outside of the flanges connected to the external connection channel.

[0013] Furthermore, a fixing ring is fixedly connected at the connection between the valve body and the side pipe, a liquid bladder is fixedly connected to the inner side of the fixing ring, and the outer wall of the liquid bladder and the connection between the valve body and the side pipe are in close contact with each other, and an air bladder is fixedly connected to the outer wall of the liquid bladder.

[0014] Compared with the prior art, the beneficial effects of this utility model are: an intelligent adjustable anti-cavitation circular butterfly gate, which adopts a novel structural design, the specific details of which are as follows: (1) This intelligent regulating anti-cavitation circular butterfly gate relies on the flow sensor, pressure sensor on the guide ring inside the valve body, and the temperature sensor in front of the valve body to realize real-time synchronous monitoring of fluid flow, pressure and temperature. All sensor data are transmitted to the control terminal in real time through the signal transmitter on the right side of the mounting base, providing accurate data basis for the adjustment action. Then, the valve shaft and valve plate are driven to rotate through the active gear and driven gear to complete the coarse adjustment of the valve opening. The electric guide rod drives the overflow inclined block to rise and fall, and performs fine compensation for the flow area of ​​the overflow hole. The breakthrough is achieved through the cooperation of the overflow hole and the overflow inclined block on the valve plate. When the flow rate is large, the electric guide rod drives the overflow inclined block to rise, increasing the flow area of ​​the overflow hole, assisting the valve plate to complete the opening and closing action smoothly, significantly reducing the valve switching resistance, improving the operational flexibility, avoiding delays in the process due to valve jamming, and ensuring the overall work progress.

[0015] (2) This intelligent adjustable anti-cavitation circular butterfly gate relies on the principle of fluid mechanics. The buffer plate and the guide ring in the valve body form a cooperative protection. The buffer plate disperses the impact force of the fluid to reduce the local flow velocity through its own elastic movement and surface hole structure. The spiral guide pattern on the inner wall of the guide ring guides the fluid to form a stable vortex, avoiding the sudden increase in flow velocity that causes the local pressure to drop below the fluid saturated vapor pressure, thus reducing the probability of cavitation. The cavitation sensor near the right side of the valve plate and the spray ring on the left side of the valve plate form a linkage protection mechanism. When the cavitation sensor detects the vibration signal of cavitation, the control terminal can immediately start the water pump and spray high-pressure coolant near the valve plate through the spray head of the spray ring to quickly destroy the environment for bubble generation and survival, and avoid the impact and erosion of core components such as valve plate and valve seat caused by bubble rupture. This can significantly extend the overall service life of the equipment, reduce the frequency of component replacement, and reduce long-term maintenance costs. The cavitation sensor is magnetically installed on the inner wall of the valve body. The sensor can be replaced or calibrated directly without disassembling the valve body, which greatly simplifies the maintenance process and reduces the difficulty and time cost of on-site maintenance.

[0016] Furthermore, the wear-resistant nitrile rubber sealing ring possesses excellent wear resistance and sealing performance, solving the problems of easy aging and leakage of traditional seals. The dynamic sealing structure composed of liquid and air bladders can adapt to changes in fluid flow rate, avoiding leakage at the connection between the valve body and the side pipe due to flow fluctuations. It is especially suitable for high-pressure, high-flow fluid systems, improving overall operational reliability. The valve body is connected to the external channel via side pipes and flanges at both ends, making installation convenient and adaptable to various industrial pipe specifications, with strong versatility. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the exploded structure of this utility model; Figure 4 This is a three-dimensional cross-sectional view of the valve plate of this utility model; Figure 5 This is a three-dimensional cross-sectional view of the valve body of this utility model; Figure 6 This is a three-dimensional schematic diagram of the buffer plate of this utility model; Figure 7 This is an exploded view of the flow guide ring of this utility model; Figure 8 This is a three-dimensional schematic diagram of the spray ring of this utility model; Figure 9 This is an exploded view of the fixing ring of this utility model.

[0018] In the diagram: 1. Valve body; 11. Mounting base; 111. Signal transmitter; 12. Drive gear; 13. Valve shaft; 131. Driven gear; 14. Valve plate; 141. Overflow hole; 15. Electric guide rod; 151. Overflow wedge; 16. Sealing ring; 17. Temperature sensor; 2. Buffer component; 21. Buffer plate; 22. Guide ring; 221. Flow sensor; 222. Pressure sensor; 223. Cavitation sensor; 23. Spray ring; 231. Spray head; 3. Side pipe; 31. Flange; 32. Fixing ring; 321. Liquid bladder; 322. Air bladder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: An intelligent adjustable anti-cavitation circular butterfly gate uses the meshing connection of the driving gear 12 and the driven gear 131 to adjust the opening and closing of the valve plate 14. Under the action of the electric guide rod 15 in the overflow hole 141 on the valve plate 14, when the water flow is large, the control terminal controls the electric guide rod 15 to drive the overflow ramp 151 to lift, thereby realizing the smooth opening and closing adjustment of the valve plate 14. After the fluid enters the valve body 1, the pressure sensor 222 and the flow sensor 221 collect the pressure of the side pipe 3 and the outlet flow in real time, and transmit the data to the control terminal through the signal transmitter 111. When the temperature sensor 17 detects that the fluid temperature exceeds the set value, it transmits the data to the control terminal to prevent the inability to dynamically adjust the valve opening degree according to the real-time parameters of the fluid. When the system flow or pressure fluctuates, problems such as adjustment lag and overshoot are likely to occur, making it difficult to meet the requirements of high-precision flow control. When the fluid flow is large, the opening and closing of the valve is difficult to switch, affecting the work progress.

[0021] like Figure 1 - Figure 6As shown, an intelligent adjustable anti-cavitation circular butterfly gate includes a valve body 1 and valve seats fixedly connected to both sides of the bottom of the valve body 1. A mounting base 11 is fixedly connected to the center of the top surface of the valve body 1. A servo motor is fixedly connected to the top of the mounting base 11, and a drive gear 12 is fixedly connected to the output end of the servo motor. Its function is to provide power for the rotation of the valve shaft 13 and valve plate 14 through meshing with a driven gear 131. The valve shaft 13 is rotatably connected to the left side of the mounting base 11, and the bottom end of the valve shaft 13 extends into the valve body 1, used to drive the bottom valve plate 14 to rotate synchronously, realizing the opening and closing of the valve and the adjustment of the opening degree. A driven gear 131 is fixedly connected to the top of the valve shaft 13, and the driven gear 131 meshes with the drive gear 12. The servo motor's power is transmitted to the valve shaft 13 through meshing. A valve plate 14 is fixedly connected to the bottom of the valve shaft 13. This valve plate 14 can rotate to change its angle within the valve body 1, thus enabling basic valve opening and closing operations and coarse adjustment of the opening degree, providing basic adjustment capabilities for fluid control. Overflow holes 141 are evenly distributed on the valve plate 14 to assist fluid flow under high flow conditions, preventing valve switching jams. They can also be used in conjunction with the lifting and lowering of the overflow ramp 151 to change the flow area, achieving fine flow control. An installation hole is provided at the top of the overflow hole 141, and an electric guide rod 15 is fixedly connected inside the installation hole. This rod can extend and retract, driving the overflow ramp 151 at the bottom to rise and fall. The bottom of the electric guide rod 15 is fixedly connected to the overflow ramp 151. When the electric guide rod 15 moves its... When the valve plate is raised, the flow area of ​​the overflow orifice 141 increases, allowing the auxiliary valve plate 14 to open and close smoothly under high flow conditions without jamming. When the overflow ramp 151 descends, the flow area of ​​the overflow orifice 141 decreases, which, in conjunction with the basic opening of the valve plate 14, enables fine control of the fluid flow rate and improves the adjustment accuracy. A sealing ring 16 is fixedly connected to the outer wall of the valve plate 14, and the material of the sealing ring 16 is wear-resistant nitrile rubber, which is used to enhance the sealing between the valve plate 14 and the valve body 1. At the same time, the wear-resistant material can extend its service life. A signal transmitter 111 is embedded in the outer wall of the right side of the mounting base 11, which is used to transmit the parameters collected by the flow sensor 221, pressure sensor 222, and temperature sensor 17 to the control terminal in real time, providing accurate data for subsequent adjustment actions. According to the support, both ends of the valve body 1 are provided with flow guide rings 22, and the inner wall of the flow guide rings is provided with spiral flow guide patterns to guide the fluid, reduce fluid turbulence, and reduce the risk of cavitation. Flow sensors 221 are uniformly fixedly connected to the outer end of the inner wall of the flow guide rings 22, and the probes are in direct contact with the fluid, which can collect fluid flow data in real time. When a large fluid flow is detected, a large flow signal is fed back to the control terminal, triggering the extension and retraction of the electric guide rod 15. Pressure sensors 222 are fixedly connected to both sides of the flow sensor 221 inside the flow guide rings 22, and the probes are in direct contact with the fluid, which can simultaneously monitor the fluid pressure and transmit the pressure data to the control terminal through the signal transmitter 111. A temperature sensor 17 is fixedly connected to the front outer wall of the valve body 1.This device is used to monitor fluid temperature in real time and transmit the temperature data to the control terminal via signal transmitter 111. The inner walls of both sides of the valve body 1 are evenly provided with grooves to provide a sliding path for the slider. A slider adapted to the groove is installed within the groove, allowing it to slide and simultaneously move the buffer plate 21. A buffer element 2 is fixedly connected to the inner end of the slider and is located within the groove. This buffer element 2 buffers the impact of the fluid on the buffer plate 21, reducing equipment vibration. The buffer plate 21 is fixedly connected between the sliders, allowing them to move along the groove under fluid impact, working in conjunction with the buffer element 2 to provide a buffering effect and protect the internal structure of the valve body 1. The buffer plate 21 has evenly distributed holes to reduce the direct impact of the fluid on it while ensuring normal fluid flow.

[0022] Example 2: Unlike Example 1, the fluid flow rate is controlled by the buffer plate 21 inside the valve body 1 under the action of the buffer member 2, utilizing the holes on the buffer plate 21. When the flow rate suddenly increases, the cavitation sensor 223 detects that the vibration frequency exceeds the set threshold. The control terminal determines that cavitation has occurred and immediately starts the water pump. High-pressure coolant is sprayed through the spray head 231 of the spray ring 23 to the area near the valve plate 14, disrupting the bubble formation environment, until the signal detected by the cavitation sensor 223 is lower than the threshold, at which point the water pump stops. When the operation stops, under the action of the air bladder 322 and the liquid bladder 321 at the connection between the valve body 1 and the side pipe 3, the fluid impacts the air bladder 322, and the air bladder 322 squeezes the liquid bladder 321. This achieves the effect of a greater fluid flow rate and a more sealed valve body 1 and side pipe 3. This prevents the generation of a large number of bubbles when the fluid flows through the valve. If the local flow velocity is too high and the pressure drops below the fluid saturated vapor pressure, a large number of bubbles will be generated. When the bubbles flow with the fluid to the high pressure area, they will quickly burst, generating strong impact pressure, which will cause serious corrosion to the valve plate 14, valve seat and other core components of the valve.

[0023] like Figure 7 - Figure 9As shown, a cavitation sensor 223 is installed inside the valve body 1 on the right side near the valve plate 14. The cavitation sensor 223 is magnetically attached to the inner wall of the valve body 1. This magnetic installation method ensures detection stability and facilitates later disassembly and maintenance. The cavitation sensor 223 can identify cavitation phenomena by capturing fluid vibration frequencies. When the detected vibration frequency exceeds a preset threshold, indicating cavitation, the signal is transmitted to the control terminal. A water pump is embedded on the left outer wall of the mounting base 11. Upon receiving the cavitation signal from the control terminal, the water pump immediately starts. The output end of the water pump is fixedly connected to a pipe for transporting high-pressure coolant. A spray ring 23 is fixedly connected to the left side of the inner valve plate 14, and a pipe passes through the top of the spray ring 23 to guide the high-pressure coolant delivered by the water pump into the spray ring 23. Spray heads 231 are evenly fixedly connected to the outer wall of the spray ring 23 near the valve plate 14. The high-pressure coolant can be accurately and evenly sprayed through the spray heads 231 to the area near the valve plate 14 where bubbles are prone to form, quickly destroying the environment for bubble formation and survival until the vibration frequency detected by the cavitation sensor 223 drops below the threshold. The control terminal then automatically shuts down the water pump, achieving on-demand start-up and precise protection, avoiding energy waste and overcooling. The inner walls of both sides of the valve body 1 have grooves for... A buffer element 2 is included, which connects to a slider and drives a buffer plate 21 to move elastically. Combined with the evenly spaced holes on the buffer plate 21, it effectively disperses the fluid impact force, reduces the local fluid velocity, and decreases the risk of cavitation. Simultaneously, the inner wall of the guide ring 22 inside the valve body 1 is machined with spiral guide patterns, which guide the fluid to form a stable vortex within the valve body 1, preventing the local pressure from dropping below the fluid's saturated vapor pressure due to a sudden increase in flow velocity. This reduces bubble formation at the source, further lowering the probability of cavitation. For sealing performance, a fixing ring 32 is fixed at the connection between the valve body 1 and the side pipe 3. The inner side of the fixing ring 32 is fitted with… The liquid bladder 321 and the air bladder 322 are tightly fitted together at the connection gap between the valve body 1 and the side pipe 3. When the fluid flow rate increases, the impact force of the fluid on the air bladder 322 increases simultaneously. After being compressed, the air bladder 322 is squeezed towards the liquid bladder 321, causing the liquid bladder 321 to further fill the tiny gap at the connection, forming a dynamic sealing effect with a larger flow rate and stronger sealing pressure, effectively avoiding fluid leakage problems under high flow conditions. The side pipes 3 are fixedly connected to the outer walls of both ends of the valve body 1. The side pipe 3 away from the valve body 1 is fixedly connected to the flange 31. The outside of the flange 31 is connected to the external connection channel to realize the connection between the valve body 1 and the external pipeline.

[0024] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart adjustable anti-cavitation circular butterfly gate, comprising a valve body (1) and valve seats fixedly connected to both sides of the bottom of the valve body (1), characterized in that: A mounting base (11) is fixedly connected to the middle of the top surface of the valve body (1). A servo motor is fixedly connected to the top of the mounting base (11). A drive gear (12) is fixedly connected to the output end of the servo motor. A valve shaft (13) is rotatably connected to the left side of the mounting base (11). The bottom end of the valve shaft (13) extends into the valve body (1). A driven gear (131) is fixedly connected to the top of the valve shaft (13). The driven gear (131) meshes with the drive gear (12). A valve plate (14) is fixedly connected to the bottom of the valve shaft (13). Overflow holes (141) are evenly opened on the valve plate (14). An installation hole is opened at the top of the overflow hole (141). An electric guide rod (15) is fixedly connected in the installation hole. An overflow inclined block (151) is fixedly connected to the bottom of the electric guide rod (15).

2. The intelligent adjustable anti-cavitation circular butterfly gate according to claim 1, characterized in that: A sealing ring (16) is fixedly connected to the outer wall of the valve plate (14), and the material of the sealing ring (16) is wear-resistant nitrile rubber.

3. The intelligent adjustable anti-cavitation circular butterfly gate according to claim 1, characterized in that: A signal transmitter (111) is embedded on the right outer wall of the mounting base (11). A flow guide ring (22) is provided at both ends of the valve body (1). A spiral flow guide pattern is provided on the inner wall of the flow guide ring (22). A flow sensor (221) is uniformly fixedly connected to the outer end of the inner wall of the flow guide ring (22). A pressure sensor (222) is fixedly connected to both sides of the flow sensor (221) in the flow guide ring (22). The probes of the flow sensor (221) and the pressure sensor (222) are in direct contact with the fluid. A temperature sensor (17) is fixedly connected to the front outer wall of the valve body (1).

4. The intelligent adjustable anti-cavitation circular butterfly gate according to claim 1, characterized in that: The valve body (1) has grooves evenly distributed on both sides of its inner wall. A slider adapted to the groove is provided in the groove. A buffer (2) is fixedly connected to the inner end of the slider and the buffer (2) is located in the groove. A buffer plate (21) is fixedly connected between the sliders and the buffer plate (21) has holes evenly distributed on it.

5. The intelligent adjustable anti-cavitation circular butterfly gate according to claim 1, characterized in that: A cavitation sensor (223) is provided inside the valve body (1) on the right side near the valve plate (14), and the cavitation sensor (223) is magnetically attached to the inner wall of the valve body (1). A water pump is embedded on the left outer wall of the mounting base (11), and a pipe is fixedly connected to the output end of the water pump. A spray ring (23) is fixedly connected to the left side of the valve plate (14) inside the valve body (1), and the pipe passes through the top of the spray ring (23). Spray heads (231) are evenly fixedly connected to the outer wall of the spray ring (23) near the valve plate (14).

6. The intelligent adjustable anti-cavitation circular butterfly gate according to claim 1, characterized in that: Side pipes (3) are fixedly connected to the outer walls of both ends of the valve body (1). A flange (31) is fixedly connected to the side of the side pipe (3) away from the valve body (1). The outside of the flange (31) is connected to the external connection channel.

7. The intelligent adjustable anti-cavitation circular butterfly gate according to claim 1, characterized in that: A fixing ring (32) is fixedly connected to the connection between the valve body (1) and the side tube (3). A liquid bladder (321) is fixedly connected to the inner side of the fixing ring (32). The outer wall of the liquid bladder (321) and the connection between the valve body (1) and the side tube (3) are in close contact with each other. An air bladder (322) is fixedly connected to the outer wall of the liquid bladder (321).

Images