High-performance butterfly valve capable of automatically adjusting pressure

Abstract

The invention discloses a high-performance butterfly valve capable of automatically adjusting pressure, and relates to the technical field of butterfly valves, the butterfly valve comprises a valve control mechanism, a self-cleaning mechanism, an eccentric mechanism and a pressure relief mechanism, the valve control mechanism is communicated with the self-cleaning mechanism, the eccentric mechanism is fixedly connected with the valve control mechanism, and the pressure relief mechanism is communicated with the valve control mechanism. The cleaning mechanism is fixedly connected with the valve control mechanism, the pressure relief mechanism is communicated with the self-cleaning mechanism, the valve control mechanism guarantees opening and closing actions of the valve clack, the self-cleaning mechanism prevents dirt accumulation by cleaning the surface of the valve body, the eccentric mechanism adjusts eccentric movement of the valve clack through combination of a hydraulic cylinder and an eccentric block, and sealing performance is improved. The pressure relief mechanism monitors and adjusts the pressure in real time through a pressure sensor, equipment is prevented from being damaged, it is ensured that leakage does not occur in the opening and closing process of the valve, automatic cleaning and pressure adjusting can be conducted, and therefore the equipment has good sealing performance, cleaning efficiency and safety.

Description

Technical Field

[0001] The invention relates to the technical field of butterfly valves, in particular to a high-performance butterfly valve capable of automatically adjusting pressure. Background Art

[0002] With the continuous improvement of the degree of industrial automation, butterfly valves are widely used in the fields of petrochemical, environmental protection, water treatment, food and medicine. Traditional butterfly valves have developed a variety of driving methods such as manual, pneumatic, and electric, which can basically meet the flow regulation and pipeline cutoff requirements under most working conditions. However, with the increasing requirements for process accuracy, safety, and cleanliness, traditional butterfly valves are stretched in terms of self-cleaning, sealing reliability, and pressure safety management. To this end, the industry has begun to explore the application of more sensors and composite technologies such as electromagnetic and hydraulic to butterfly valves to meet more stringent control, cleaning, and safety standards. In the future, butterfly valves will have broader application prospects in the fields of refined manufacturing, high-end equipment, and intelligence, and more innovative products integrating multidisciplinary technologies will appear.

[0003] The butterfly valves currently on the market usually use a single mechanical or electric control. Although they have basic switching functions, most of them still remain at the purely passive execution level. Some improved butterfly valves have begun to add simple pressure difference or flow detection devices to assist in judging the valve opening and closing status or pipeline pressure conditions. However, these improved products can usually only provide one-way adjustment triggered by alarms or passive commands, lacking adaptive capabilities and comprehensive self-cleaning functions. For high-viscosity fluids or working conditions containing impurities, filters or centrifugal flushing devices are generally added to the front end of the valve, which is costly and cumbersome. In addition, for systems with higher pressures, traditional pressure relief methods also mostly use a separate pressure relief valve and pressure limiting valve combination, with monitoring and action separated. Not only is the response speed limited, but it is also prone to maintenance difficulties.

[0004] Regarding the above-mentioned related technologies, firstly, traditional butterfly valves generally lack self-cleaning mechanisms, which leads to the need to shut down for cleaning regularly when using fluids containing impurities or prone to scaling, wasting manpower and time; secondly, although most traditional butterfly valves have certain sealing performance, they pay insufficient attention to the valve disc sealing life and reliability under high pressure or frequent opening and closing scenarios; and there is a lack of eccentric mechanisms and multi-stage sealing structures that can adjust the different pressures on both sides, resulting in unstable fit of the valve disc during operation. Finally, for pressure monitoring and pressure relief, traditional technologies often require additional pressure monitoring systems and external pressure relief channels. Therefore, technical personnel in this field provide a high-performance butterfly valve that can automatically adjust the pressure to solve the problems raised in the above background. Summary of the invention

[0005] The object of the present invention is to provide a high-performance butterfly valve capable of automatically adjusting pressure, so as to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions: The butterfly valve includes a valve control mechanism, a self-cleaning mechanism, an eccentric mechanism and a pressure relief mechanism. The valve control mechanism and the self-cleaning mechanism are connected, the eccentric mechanism and the valve control mechanism are tightly connected, the pressure relief mechanism and the valve control mechanism are connected, the self-cleaning mechanism and the valve control mechanism are tightly connected, and the pressure relief mechanism and the self-cleaning mechanism are connected.

[0007] By adopting the above technical solution, the valve control mechanism is connected to the valve body through the pneumatic actuator, so that the motor can accurately control the movement of the valve disc. The control component coordinates the work through the control shaft, sliding block and other parts to ensure the opening and closing of the valve disc. The self-cleaning mechanism drives the transmission component through the cleaning motor, so that the cleaning block can clean the surface of the valve body to prevent the accumulation of dirt. The eccentric mechanism adjusts the eccentric movement of the valve disc through the combination of the hydraulic cylinder and the eccentric block to improve the sealing performance. The pressure relief mechanism monitors and adjusts the pressure in real time through the pressure sensor to prevent equipment damage. The various mechanisms achieve overall collaborative work through the connection and fastening design to ensure that the valve does not leak during the opening and closing process, and can automatically clean and adjust the pressure. The valve control mechanism, eccentric mechanism and pressure relief mechanism cooperate with each other to ensure the precise control and pressure regulation of the valve; the self-cleaning mechanism ensures that the inside of the valve is cleaned for a long time to avoid the influence of dirt on the performance, so that the equipment has good sealing performance, cleaning efficiency and safety.

[0008] Furthermore, the valve control mechanism includes a valve body, a pneumatic actuator, a control component and a valve flap. The pneumatic actuator and the valve body are fastened together, the pneumatic actuator and the control component are transmission-connected, the control component and the valve flap are transmission-connected, the valve flap is circular, and abutments are provided on the valve flap. The abutments are rounded, and the valve flap abuts against the eccentric mechanism.

[0009] By adopting the above technical scheme, the valve control mechanism includes a valve body, a pneumatic actuator, a control component and a valve disc. The pneumatic actuator is tightly connected to the valve body. The pneumatic actuator and the control component are transmission-connected to provide power output for the control component. The control component is transmission-connected to the valve disc so that the valve disc rotates. The valve disc is circular and is provided with an abutment. The abutment is rounded. The valve disc abuts against the eccentric block of the eccentric mechanism. The pneumatic actuator accurately adjusts the opening and closing of the valve disc through the control component to ensure that the valve can adjust the fluid flow according to demand. The pneumatic actuator drives the movement of the control component to drive the valve disc to switch. The rounded abutment reduces friction and extends the service life of the valve. The design of the valve control mechanism improves the accuracy of the valve and ensures long-term stable operation.

[0010] Furthermore, the control component includes a control shaft, a sliding block, a connecting column, a control block, a clamping electromagnetic block, a clamping elastic member and a clamping magnetic block. The pneumatic actuator is transmission-connected to the control shaft, the control shaft is transmission-connected to the connecting column, the connecting column and the sliding block are transmission-connected, the sliding block and the control block are slidingly connected, the clamping electromagnetic block and the control block are fastened together, the clamping electromagnetic block and the clamping elastic member are fastened together, the clamping magnetic block and the clamping elastic member are magnetically repelled from each other, and the clamping magnetic block and the control block are slidingly connected.

[0011] By adopting the above technical solution, the control shaft is connected to the pneumatic actuator to transmit the rotational power output by the motor to the downstream components. The sliding block can slide or reciprocate in the control block to adjust the eccentric angle of the valve disc for transmission. The connecting column is used to connect the control shaft and the sliding block and other components to play a transmission role. The control block serves as a guide and mounting base for the movement of the sliding block and cooperates with the clamping electromagnetic block, the clamping magnetic block and other components. The clamping electromagnetic block is tightly connected to the control block, and the movement or positioning of the clamping magnetic block is controlled by electromagnetic force. The clamping elastic member is tightly connected to the clamping electromagnetic block and the clamping magnetic block to provide the necessary elastic force. The clamping transmission is when the magnetic repulsion or attraction occurs. There is magnetic repulsion transmission between the clamping magnetic block and the clamping electromagnetic block, and they can slide in the control block to realize the clamping and release of the valve disc transmission. When the pneumatic actuator is working, the control shaft drives the connecting column and the sliding block to move. The electromagnetic force between the clamping electromagnetic block and the clamping magnetic block can realize the precise adjustment of the clamping state. The transmission path is combined with the motor transmission and the clamping mechanism by using magnetic repulsion and elastic parts for buffering, which improves the stability and flexibility of the valve opening and closing control, ensures the stability and accuracy of the valve control mechanism when executing the switching action, and effectively avoids the wear and noise problems of traditional mechanical matching.

[0012] Furthermore, the eccentric mechanism includes a first eccentric block, a second eccentric block, a third eccentric block, a first sealing ring, a second sealing ring, a first eccentric hydraulic cylinder and a second eccentric hydraulic cylinder. The first eccentric block and the first sealing ring are each provided with four. The first eccentric block abuts against the valve disc, the first sealing ring and the first eccentric block are tightly connected, the second sealing ring and the valve disc are tightly connected, the first eccentric block and the second eccentric block are slidingly connected, the second eccentric block and the third eccentric block are slidingly connected, the third eccentric block and the valve body are tightly connected, the second eccentric hydraulic cylinder and the third eccentric block are tightly connected, the second eccentric hydraulic cylinder and the second eccentric block are transmission connected, the first eccentric hydraulic cylinder and the second eccentric block are tightly connected, and the first eccentric hydraulic cylinder and the first eccentric block are transmission connected.

[0013] By adopting the above technical scheme, the first eccentric block, the second eccentric block and the third eccentric block are connected by sliding to form an eccentric structure. At the same time, the eccentric movement of the valve disc during the opening and closing process is realized through the change of pressure on both sides, thereby enhancing the sealing effect. The first sealing ring is tightly connected to the first eccentric block to form a multi-point sealing structure to avoid fluid leakage. The second sealing ring is tightly connected to the valve disc to form a sealing interface in the contact area between the valve disc and the first eccentric block. The first eccentric hydraulic cylinder and the second eccentric hydraulic cylinder are respectively connected to the first and second eccentric blocks by transmission. The eccentric blocks are driven by hydraulic pressure to move, thereby further fine-tuning the position and fit of the valve disc. The eccentric hydraulic cylinder pushes or pulls the eccentric blocks to form linear motion during control, thereby causing the valve disc to produce a slight eccentricity, thereby obtaining a higher sealing performance. The sliding connection between the eccentric blocks and the driving force of the hydraulic cylinder are utilized to ensure that efficient sealing fit is always maintained during the opening and closing process. Through the coordination of multi-stage eccentric linear motion, the valve can achieve good sealing performance and pressure resistance, reduce wear and extend service life.

[0014] Furthermore, the cross-section of the first sealing ring and the second sealing ring is S-shaped and surrounds the seal, the first eccentric block is provided with an abutment groove, the second sealing ring abuts against the abutment groove, and the first eccentric block, the second eccentric block, the third eccentric block and the first sealing ring are all crescent-shaped.

[0015] By adopting the above technical solution, the first sealing ring and the second sealing ring of the S-shaped line surround seal have S-shaped cross-sections, and are connected with the eccentric block and the valve disc in a surround manner, so as to maintain a stable fit seal in dynamic eccentric movement. The abutment groove (arranged on the first eccentric block) is used to abut with the second sealing ring, so that the sealing ring has a reliable position and support during eccentric movement. The crescent-shaped eccentric block and sealing ring are more geometrically consistent with the circular structure of the valve disc, which can provide a larger contact surface when opening or closing, thereby enhancing the sealing effect. The S-shaped cross-section sealing ring is matched with the crescent-shaped The eccentric block can reduce uneven contact and wear of the sealing surface. The design of the abutment groove can provide more stable positioning for the sealing ring when the valve disc is opened and closed. When the valve disc moves eccentrically, the second sealing ring cooperates with the abutment groove, and the first sealing ring is tightly connected to the first eccentric block, forming a plurality of surrounding sealing areas as a whole. The S-shaped cross-section enhances the elastic fit of the sealing ring to the sealing surface after being subjected to force. The semi-crescent-shaped eccentric block can naturally fit with the circular structure of the valve disc, thereby improving the sealing reliability, effectively improving the sealing performance of the valve in the eccentric state, and extending the service life of the seal.

[0016] Furthermore, the self-cleaning mechanism includes a first cleaning block, a second cleaning block, a cleaning motor and a transmission assembly. The cleaning motor and the valve body are fastened together, the cleaning motor and the transmission assembly are transmission-connected, the transmission assembly and the first cleaning block are transmission-connected, the transmission assembly and the second cleaning block are transmission-connected, the first cleaning block is provided with a first stabilizing flow groove, the second cleaning block is provided with a second stabilizing flow groove, the first stabilizing flow groove and the second stabilizing flow groove are connected, the first stabilizing flow groove and the second stabilizing flow groove are both spirally shaped around the axis of the first cleaning block, the first cleaning block is provided with a cleaning cavity, the second cleaning block is provided with a connecting cavity, the cleaning cavity and the connecting cavity are connected, the cleaning cavity is hemispherical, the connecting cavity is cylindrical, the first stabilizing flow groove is arranged circumferentially in the cleaning cavity, and the second stabilizing flow groove is arranged circumferentially in the connecting cavity.

[0017] By adopting the above technical solution, the first cleaning block and the second cleaning block are driven by the cleaning motor to rotate and are used to clean the inside of the valve body and the surface of the valve disc. The cleaning motor is fastened to the valve body and is connected to the transmission component to provide power for the cleaning block. The transmission component transmits the power of the cleaning motor to the first cleaning block and the second cleaning block respectively to achieve coordinated cleaning. The first steady flow groove (arranged on the first cleaning block) and the second steady flow groove (arranged on the second cleaning block) are both spiral-shaped and interconnected, and can guide the fluid or cleaning liquid to flow along the spiral path. The cleaning cavity (located in the first cleaning block The two cleaning blocks are connected to each other and are used to store cleaning fluid or collect dirt. The cleaning effect is improved by cooperating with the flow stabilizing groove. The cleaning motor is fixed on the valve body, and the output power is distributed to the two cleaning blocks through the transmission assembly, so that they can rotate or reciprocate at the corresponding positions inside and outside the valve body for cleaning. A continuous and stable fluid channel is formed through the spiral flow stabilizing groove. The structural advantages of the cleaning chamber and the connecting chamber are used to take away or collect dirt, ensuring that the valve can remain in good condition after long-term use and reducing failures or performance degradation caused by dirt accumulation.

[0018] Furthermore, the transmission assembly includes a transmission gear rod, a reversing electromagnetic block, a reversing magnetic block, a reversing gear rod group and a driven gear rod. The cleaning motor and the transmission gear rod are transmission-connected, the transmission gear rod and the driven gear rod are transmission-connected, the driven gear rod and the first cleaning block are transmission-connected, the transmission gear rod and the reversing gear rod group are plug-in transmission, the driven gear rod and the reversing gear rod group are plug-in transmission, the reversing gear rod group and the reversing magnetic block are fastened, the reversing gear rod group and the valve body are rotationally connected, and the reversing gear rod group and the second cleaning block are transmission-connected.

[0019] By adopting the above technical solution, the transmission gear rod transmits the rotational motion of the cleaning motor to the driven gear rod and the reversing gear rod group, the reversing electromagnetic block and the reversing magnetic block interact with each other to form the linear motion of the reversing gear rod group, and the gear transmission direction or power distribution path is controlled by electromagnetic force. The reversing magnetic block is tightly connected to the reversing gear rod group, and power reversing or distribution is achieved through magnetic cooperation. The reversing gear rod group can be connected to the transmission gear rod or the driven gear rod by plugging, and the second cleaning block can be switched to a different rotation direction. The driven gear rod is connected to the first cleaning block by transmission, so as to achieve the purpose of rotating the first cleaning block. At the same time, it can be plugged with the reversing gear rod group to realize the driving of the second cleaning block. The output shaft of the cleaning motor is connected to the transmission gear rod. Under the action of the reversing electromagnetic block and the reversing magnetic block, the reversing gear rod group can selectively transmit power to the first or second cleaning block.

[0020] By switching the gear set by electromagnetic commutation, a single motor can drive multiple cleaning components, achieving multi-position cleaning under limited space and power source, and improving the working efficiency and flexibility of the self-cleaning mechanism.

[0021] Furthermore, the reversing gear rod group includes a first reversing rod, a second reversing rod, a first reversing gear and a second reversing gear. The first reversing rod and the transmission gear rod are plug-in transmission connected, the second reversing rod and the second reversing gear are plug-in transmission connected, the first reversing rod and the first reversing gear are transmission connected, the second reversing rod and the second reversing gear are transmission connected, and the second reversing rod and the first reversing gear are rotationally connected.

[0022] By adopting the above technical solution, the first reversing rod is plug-in connected to the transmission gear rod, and the input or transmission of power is realized through the first reversing gear. The second reversing rod is plug-in connected to the second reversing gear, and the driving of the second cleaning block is realized by rotation or rotation. The first reversing gear is transmission-connected to the first reversing rod, and is rotatably connected to the second reversing rod for power transmission between different gears. The second reversing gear is plug-in transmission-connected to the second reversing rod, and can receive or output power transmitted from the first reversing gear. By plugging in a combination of multiple rods and multiple gears, power distribution in different directions and different components can be realized to meet complex cleaning needs. When the transmission gear rod drives the first reversing rod to rotate, the rotation or meshing relationship between the first reversing gear and the second reversing rod can be switched or synchronized to realize the driving of the second reversing gear. With the help of the plug-in gear rod combination, power reversing and distribution can be realized in a limited space, and the mutual switching or synchronous rotation of the cleaning blocks can be realized through the reversing gears.

[0023] The mobility of the self-cleaning mechanism is improved, and cleaning actions in multiple angles and directions can be achieved in a set of gear transmission systems.

[0024] Furthermore, the pressure relief mechanism includes a pressure relief pipe, a pressure relief valve, a first pressure sensor, a second pressure sensor, an impeller and a pressure relief box. The pressure relief pipe is connected to the valve body, the pressure relief valve is tightly connected to the valve, the pressure relief valve is connected to the pressure relief pipe, the pressure relief valve is located at the lower end of the valve body, the first pressure sensor is tightly connected to the valve body, the second pressure sensor is tightly connected to the valve body, the first pressure sensor is tightly connected to the first eccentric block, the pressure relief pipe is connected to the pressure relief box, and the control shaft is connected to the impeller.

[0025] By adopting the above technical scheme, the pressure relief pipe is connected to the valve body, which is used to discharge or introduce the fluid into the pressure relief tank when the pressure exceeds the limit. The pressure relief valve is tightly connected to the valve body, located at the lower end of the valve body, and connected to the pressure relief pipe, which is responsible for automatically opening or closing the discharge channel. The first pressure sensor is fastened to the first eccentric block, and the second pressure sensor is fastened to the valve body, which is used to monitor the pressure data inside the valve body or at the eccentric structure in real time. The impeller is connected to the control shaft in a transmission manner, and the impeller is driven to rotate by the control shaft. When the valve or pressure relief process is in progress, it can assist in guiding the fluid flow or generate measurement data. The pressure relief tank is connected to the pressure relief pipe, which is used to collect or store the discharged excess fluid to ensure the safety of the system. When the sensor detects that the pressure in the valve body exceeds the preset range, the pressure relief valve automatically opens under the control signal instruction or its own mechanical setting, and introduces the excess fluid into the pressure relief tank through the pressure relief pipe. The real-time detection of the pressure sensor is linked to the action of the pressure relief valve to prevent the pipeline or valve body from being subjected to excessive pressure. In this process, the impeller can assist in the discharge of fluid or provide additional detection signals through the rotation speed, effectively preventing equipment damage or safety accidents caused by pressure overload, and ensuring the long-term stable and reliable operation of the system.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: firstly, the first eccentric block, the second eccentric block and the third eccentric block are connected by sliding or fastening to form an eccentric system, so as to realize the eccentric movement of the valve disc during the opening and closing process and enhance the sealing effect; the first sealing ring is fastened to the first eccentric block to form a multi-point sealing structure together to avoid fluid leakage; the second sealing ring is fastened to the valve disc to form a sealing interface in the contact area between the valve disc and the first eccentric block; the first eccentric hydraulic cylinder and the second eccentric hydraulic cylinder are respectively connected to the first and second eccentric blocks by transmission; the eccentric blocks are driven by hydraulic pressure to move, so as to further fine-tune the position and fit of the valve disc; the eccentric hydraulic cylinder pushes or pulls the eccentric block during control to make the valve disc produce a slight eccentricity, so as to obtain higher sealing performance; the sliding connection between the eccentric blocks and the driving force of the hydraulic cylinder are utilized to ensure that efficient sealing fit is always maintained during the opening and closing process; the good sealing performance and pressure resistance of the valve are realized through multi-stage eccentric cooperation, so as to reduce wear and extend the service life; secondly, the first cleaning block and the second cleaning block are driven by the cleaning motor to move Or rotate, used to clean the inside of the valve body and the surface of the valve disc, the cleaning motor is fastened to the valve body and connected to the transmission component to provide power for the cleaning block, the transmission component transmits the power of the cleaning motor to the first cleaning block and the second cleaning block respectively, to achieve coordinated cleaning, the first stabilizing groove (arranged on the first cleaning block) and the second stabilizing groove (arranged on the second cleaning block) are both spiral and interconnected, and can guide the fluid or cleaning liquid to flow along the spiral path, the cleaning cavity (located in the first cleaning block) and the connecting cavity (located in the second cleaning block) are hemispherical and cylindrical structures respectively, the two are connected, used to store cleaning liquid or collect dirt, and cooperate with the stabilizing groove to improve the cleaning effect, the cleaning motor is fixed on the valve body, and the output power is distributed to the two cleaning blocks through the transmission component, so that they rotate or reciprocate at the corresponding positions inside and outside the valve body for cleaning, and a continuous and stable fluid channel is formed through the spiral stabilizing groove, and the structural advantages of the cleaning cavity and the connecting cavity are used to take away or collect dirt, so as to ensure that the valve can still maintain a good condition after long-term use, and reduce failures or performance degradation caused by dirt accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the valve control mechanism of the present invention; Figure 3 This is a schematic diagram of the control component structure of the present invention; Figure 4 It is a schematic diagram of the structure of the eccentric mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the first eccentric block of the present invention; Figure 6 It is a schematic diagram of the structure of the transmission assembly of the present invention; Figure 7This is a schematic diagram of the structure of the first reversing rod of the present invention; Figure 8 It is a schematic diagram of the structure of the pressure relief mechanism of the present invention.

[0028] In the figure: 1. valve control mechanism; 11. valve body; 12. pneumatic actuator; 13. control assembly; 131. control shaft; 132. sliding block; 133. connecting column; 134. control block; 135. clamping electromagnetic block; 136. clamping elastic member; 137. clamping magnetic block; 14. valve flap; 141. abutment; 2. self-cleaning mechanism; 21. first cleaning block; 211. cleaning chamber; 212. first stabilizing groove; 22. second cleaning block; 221. second stabilizing groove; 222. connecting chamber; 23. cleaning motor; 24. transmission assembly; 241. transmission gear rod; 242. reversing electromagnetic block; 243. Reversing magnetic block; 244, reversing gear rod group; 2441, first reversing rod; 2442, second reversing rod; 2443, first reversing gear; 2444, second reversing gear; 245, driven gear rod; 3, eccentric mechanism; 31, first eccentric block; 311, abutment groove; 32, second eccentric block; 33, third eccentric block; 34, first sealing ring; 35, second sealing ring; 36, first eccentric hydraulic cylinder; 37, second eccentric hydraulic cylinder; 4, pressure relief mechanism; 41, pressure relief pipe; 42, pressure relief valve; 43, first pressure sensor; 44, second pressure sensor; 45, impeller; 46, pressure relief box. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 - Figure 8 As shown, the present invention provides a high-performance butterfly valve technical solution capable of automatically adjusting pressure: The butterfly valve includes a valve control mechanism 1, a self-cleaning mechanism 2, an eccentric mechanism 3 and a pressure relief mechanism 4. The valve control mechanism 1 is connected to the self-cleaning mechanism 2, the eccentric mechanism 3 is firmly connected to the valve control mechanism 1, the pressure relief mechanism 4 is connected to the valve control mechanism 1, the self-cleaning mechanism 2 is firmly connected to the valve control mechanism 1, and the pressure relief mechanism 4 is connected to the self-cleaning mechanism 2.

[0031] By adopting the above technical solution, the valve control mechanism 1 is connected to the valve body 11 by the pneumatic actuator 12, so that the motor can accurately control the movement of the valve disc 14, and the control component 13 coordinates the work of the control shaft 131, the sliding block 132 and other parts to ensure the opening and closing of the valve disc 14. The self-cleaning mechanism 2 drives the transmission component 24 through the cleaning motor 23, so that the cleaning block can clean the surface of the valve body 11 to prevent the accumulation of dirt. The eccentric mechanism 3 adjusts the eccentric movement of the valve disc 14 through the combination of the hydraulic cylinder and the eccentric block to improve the sealing performance. The pressure relief mechanism 4 monitors and adjusts the pressure in real time through the pressure sensor to prevent equipment damage. Each mechanism realizes the overall coordinated work through the connection and fastening design to ensure that the valve does not leak during the opening and closing process, and can automatically clean and adjust the pressure. The valve control mechanism 1, the eccentric mechanism 3 and the pressure relief mechanism 4 cooperate with each other to ensure the precise control and pressure adjustment of the valve; the self-cleaning mechanism 2 ensures that the inside of the valve is cleaned for a long time to avoid the influence of dirt on the performance, so that the equipment has good sealing performance, cleaning efficiency and safety.

[0032] Furthermore, the valve control mechanism 1 includes a valve body 11, a pneumatic actuator 12, a control component 13 and a valve flap 14. The pneumatic actuator 12 and the valve body 11 are fastened together, the pneumatic actuator 12 and the control component 13 are transmission-connected, the control component 13 and the valve flap 14 are transmission-connected, the valve flap 14 is circular, and an abutment 141 is provided on the valve flap 14. The abutment 141 is rounded, and the valve flap 14 abuts against the eccentric mechanism 3.

[0033] By adopting the above technical solution, the valve control mechanism 1 includes a valve body 11, a pneumatic actuator 12, a control component 13 and a valve flap 14. The pneumatic actuator 12 is tightly connected to the valve body 11, and the pneumatic actuator 12 and the control component 13 are transmission-connected to provide power output for the control component 13. The control component 13 is transmission-connected to the valve flap 14, so that the valve flap 14 performs rotational movement. The valve flap 14 is circular and provided with an abutment 141, and the abutment 141 is rounded. The valve flap 14 abuts against the eccentric block of the eccentric mechanism 3. The pneumatic actuator 12 accurately adjusts the opening and closing of the valve flap 14 through the control component 13 to ensure that the valve can adjust the fluid flow according to demand. The pneumatic actuator 12 drives the movement of the control component 13, and then drives the valve flap 14 to open and close. The rounded abutment 141 reduces friction and prolongs the service life of the valve. The design of the valve control mechanism 1 improves the accuracy of the valve and ensures long-term stable operation.

[0034] Furthermore, the control component 13 includes a control shaft 131, a sliding block 132, a connecting column 133, a control block 134, a clamping electromagnetic block 135, a clamping elastic member 136 and a clamping magnetic block 137. The pneumatic actuator 12 is transmission-connected to the control shaft 131, the control shaft 131 is transmission-connected to the connecting column 133, the connecting column 133 is transmission-connected to the sliding block 132, the sliding block 132 and the control block 134 are slidingly connected, the clamping electromagnetic block 135 and the control block 134 are fastened together, the clamping electromagnetic block 135 and the clamping elastic member 136 are fastened together, the clamping magnetic block 137 and the clamping elastic member 136 are fastened together, the clamping magnetic block 137 and the clamping electromagnetic block 135 are magnetically repelled from each other, and the clamping magnetic block 137 and the control block 134 are slidingly connected.

[0035] By adopting the above technical solution, the control shaft 131 is connected to the pneumatic actuator 12 to transmit the rotational power output by the motor to the downstream components. The sliding block 132 can slide or reciprocate on the control block 134 to adjust the eccentric angle of the valve disc 14 for transmission. The connecting column 133 is used to connect the control shaft 131 with the sliding block 132 and other components to play a transmission role. The control block 134 serves as a guide and mounting base for the movement of the sliding block 132 and cooperates with the clamping electromagnetic block 135, the clamping magnetic block 137 and other components. The clamping electromagnetic block 135 is tightly connected to the control block 134, and the movement or positioning of the clamping magnetic block 137 is controlled by electromagnetic force. The clamping elastic member 136 is tightly connected to the clamping electromagnetic block 135 and the clamping magnetic block 137. Necessary elastic force is provided to clamp the transmission when the magnets repel or attract each other. The clamping magnetic block 137 and the clamping electromagnetic block 135 have magnetic repulsion transmission and can slide in the control block 134 to achieve clamping and releasing of the valve disc 14 transmission. When the pneumatic actuator 12 is working, the control shaft 131 drives the connecting column 133 and the sliding block 132 to move. The electromagnetic force between the clamping electromagnetic block 135 and the clamping magnetic block 137 is used to achieve precise adjustment of the transmission path of the clamping state. The magnetic repulsion and elastic component buffering are used to combine the motor transmission and the clamping mechanism, thereby improving the stability and flexibility of the valve opening and closing control, ensuring the stability and accuracy of the valve control mechanism 1 when executing the switching action, and effectively avoiding the wear and noise problems of traditional mechanical matching.

[0036] Furthermore, the eccentric mechanism 3 includes a first eccentric mass 31, a second eccentric mass 32, a third eccentric mass 33, a first sealing ring 34, a second sealing ring 35, a first eccentric hydraulic cylinder 36 and a second eccentric hydraulic cylinder 37. The first eccentric mass 31 and the first sealing ring 34 are each provided with four. The first eccentric mass 31 abuts against the valve disc 14, the first sealing ring 34 is firmly connected to the first eccentric mass 31, the second sealing ring 35 is firmly connected to the valve disc 14, the first eccentric mass 31 and the second eccentric mass 32 are slidably connected, the second eccentric mass 32 and the third eccentric mass 33 are slidably connected, the third eccentric mass 33 is firmly connected to the valve body 11, the second eccentric hydraulic cylinder 37 and the third eccentric mass 33 are firmly connected, the second eccentric hydraulic cylinder 37 and the second eccentric mass 32 are transmission-connected, the first eccentric hydraulic cylinder 36 and the second eccentric mass 32 are firmly connected, and the first eccentric hydraulic cylinder 36 and the first eccentric mass 31 are transmission-connected.

[0037] By adopting the above technical solution, the first eccentric block 31, the second eccentric block 32, and the third eccentric block 33 are connected by sliding to form an eccentric structure. At the same time, the eccentric movement of the valve disc 14 during the opening and closing process is realized through the change of pressure on both sides to enhance the sealing effect. The first sealing ring 34 is tightly connected to the first eccentric block 31 to form a multi-point sealing structure to avoid fluid leakage. The second sealing ring 35 is tightly connected to the valve disc 14 to form a sealing interface in the contact area between the valve disc 14 and the first eccentric block 31. The first eccentric hydraulic cylinder 36 and the second eccentric hydraulic cylinder 37 is respectively connected to the first and second eccentric blocks 32 by transmission. The eccentric blocks are driven by hydraulic pressure to move, so as to further fine-tune the position and fit of the valve disc 14. The eccentric hydraulic cylinder pushes or pulls the eccentric blocks to form linear motion during control, so that the valve disc 14 produces a slight eccentricity, thereby obtaining a higher sealing performance. The sliding connection between the eccentric blocks and the driving force of the hydraulic cylinder are utilized to ensure that an efficient sealing fit is always maintained during the opening and closing process. Through the coordination of multi-stage eccentric linear motion, the valve has good sealing performance and pressure resistance, reduces wear and prolongs its service life.

[0038] Furthermore, the cross-section of the first sealing ring 34 and the second sealing ring 35 is S-shaped and surrounds the seal. The first eccentric block 31 is provided with an abutment groove 311, and the second sealing ring 35 abuts against the abutment groove 311. The first eccentric block 31, the second eccentric block 32, the third eccentric block 33 and the first sealing ring 34 are all crescent-shaped.

[0039] By adopting the above technical solution, the first sealing ring 34 and the second sealing ring 35 of the S-shaped line surround seal have an S-shaped cross-section, and are connected with the eccentric block and the valve disc 14 in a surround manner, so as to maintain a stable fit seal in dynamic eccentric movement. The abutment groove 311 (arranged on the first eccentric block 31) is used to abut with the second sealing ring 35, so that the sealing ring has a reliable position and support during eccentric movement. The semi-crescent-shaped eccentric block and sealing ring are more geometrically consistent with the circular structure of the valve disc 14, which can provide a larger contact surface when opening or closing, thereby enhancing the sealing effect. The S-shaped cross-section sealing ring is matched with the semi-crescent-shaped eccentric The block can reduce uneven contact and wear of the sealing surface. The design of the abutment groove 311 can provide more stable positioning for the sealing ring when the valve disc 14 is opened and closed. When the valve disc 14 moves eccentrically, the second sealing ring 35 cooperates with the abutment groove 311, and the first sealing ring 34 is tightly connected to the first eccentric block 31, so that a plurality of surrounding sealing areas are formed as a whole. The S-shaped cross-section enhances the elastic fit of the sealing ring to the sealing surface after being subjected to force. The semi-crescent-shaped eccentric block can naturally fit with the circular structure of the valve disc 14, thereby improving the sealing reliability, effectively improving the sealing performance of the valve in the eccentric state, and extending the service life of the seal.

[0040] Furthermore, the self-cleaning mechanism 2 includes a first cleaning block 21, a second cleaning block 22, a cleaning motor 23 and a transmission assembly 24. The cleaning motor 23 is fastened to the valve body 11, the cleaning motor 23 is transmission-connected to the transmission assembly 24, the transmission assembly 24 is transmission-connected to the first cleaning block 21, and the transmission assembly 24 is transmission-connected to the second cleaning block 22. The first cleaning block 21 is provided with a first stabilizing groove 212, and the second cleaning block 22 is provided with a second stabilizing groove 221. The first stabilizing groove 212 and the second stabilizing groove 221 are connected. The first stabilizing groove 212 and the second stabilizing groove 221 are both spirally shaped around the axis of the first cleaning block 21. The first cleaning block 21 is provided with a cleaning chamber 211, and the second cleaning block 22 is provided with a connecting chamber 222. The cleaning chamber 211 and the connecting chamber 222 are connected. The cleaning chamber 211 is hemispherical, and the connecting chamber 222 is cylindrical. The first stabilizing groove 212 is arranged circumferentially in the cleaning chamber 211, and the second stabilizing groove 221 is arranged circumferentially in the connecting chamber 222.

[0041] By adopting the above technical solution, the first cleaning block 21 and the second cleaning block 22 are driven by the cleaning motor 23 to rotate, and are used to clean the inside of the valve body 11 and the surface of the valve disc 14. The cleaning motor 23 is fastened to the valve body 11 and is connected to the transmission component 24 to provide power for the cleaning blocks. The transmission component 24 transmits the power of the cleaning motor 23 to the first cleaning block 21 and the second cleaning block 22 respectively to achieve coordinated cleaning. The first stabilizing groove 212 (arranged on the first cleaning block 21) and the second stabilizing groove 221 (arranged on the second cleaning block 22) are both spiral-shaped and interconnected, and can guide the fluid or cleaning liquid to flow along the spiral path. The cleaning cavity 211 (located in the first cleaning block 21) and the connecting cavity 222 (located in the second cleaning block 22) are hemispherical and cylindrical structures respectively, and the two are connected to each other and are used to store cleaning liquid or collect dirt. The cleaning effect is improved by cooperating with the flow stabilizing groove. The cleaning motor 23 is fixed on the valve body 11, and the output power is distributed to the two cleaning blocks through the transmission component 24, so that they can rotate or reciprocate at the corresponding positions inside and outside the valve body 11 for cleaning. A continuous and stable fluid channel is formed through the spiral flow stabilizing groove, and the structural advantages of the cleaning cavity 211 and the connecting cavity 222 are used to carry away or collect dirt, ensuring that the valve can remain in good condition after long-term use, reducing failures or performance degradation caused by dirt accumulation.

[0042] Furthermore, the transmission assembly 24 includes a transmission gear rod 241, a reversing electromagnetic block 242, a reversing magnetic block 243, a reversing gear rod group 244 and a driven gear rod 245. The cleaning motor 23 is transmission-connected to the transmission gear rod 241, the transmission gear rod 241 is transmission-connected to the driven gear rod 245, the driven gear rod 245 is transmission-connected to the first cleaning block 21, the transmission gear rod 241 and the reversing gear rod group 244 are plug-in transmission, the driven gear rod 245 and the reversing gear rod group 244 are plug-in transmission, the reversing gear rod group 244 and the reversing magnetic block 243 are fastened, the reversing gear rod group 244 is rotationally connected to the valve body 11, and the reversing gear rod group 244 is transmission-connected to the second cleaning block 22.

[0043] By adopting the above technical solution, the transmission gear rod 241 transmits the rotational motion of the cleaning motor 23 to the driven gear rod 245 and the reversing gear rod group 244, and the reversing electromagnetic block 242 interacts with the reversing magnetic block 243 to form the linear motion of the reversing gear rod group 244, and the gear transmission direction or power distribution path is controlled by electromagnetic force. The reversing magnetic block 243 is tightly connected with the reversing gear rod group 244, and power reversal or distribution is achieved through magnetic matching. The reversing gear rod group 244 can be connected to the transmission gear rod by plugging. 241 or the driven gear rod 245 is connected to switch the second cleaning block to a different rotation direction. The driven gear rod 245 is connected to the first cleaning block 21 in a transmission connection, so as to achieve the purpose of rotating the first cleaning block 21. At the same time, it can be plugged with the reversing gear rod group 244 to realize the driving of the second cleaning block 22. The output shaft of the cleaning motor 23 is connected to the transmission gear rod 241. The reversing gear rod group 244 can selectively transmit power to the first or second cleaning block 22 under the action of the reversing electromagnetic block 242 and the reversing magnetic block 243.

[0044] The gear set is switched by electromagnetic commutation, so that a single motor can drive multiple cleaning components, achieving multi-position cleaning under limited space and power source, thereby improving the working efficiency and flexibility of the self-cleaning mechanism 2.

[0045] Furthermore, the reversing gear rod group 244 includes a first reversing rod 2441, a second reversing rod 2442, a first reversing gear 2443 and a second reversing gear 2444. The first reversing rod 2441 and the transmission gear rod 241 are plug-in transmission connected, the second reversing rod 2442 and the second reversing gear 2444 are plug-in transmission connected, the first reversing rod 2441 and the first reversing gear 2443 are transmission connected, the second reversing rod 2442 and the second reversing gear 2444 are transmission connected, and the second reversing rod 2442 and the first reversing gear 2443 are rotationally connected.

[0046] By adopting the above technical solution, the first reversing rod 2441 is plug-connected with the transmission gear rod 241, and the power input or transmission is realized through the first reversing gear 2443. The second reversing rod 2442 is plug-connected with the second reversing gear 2444, and the second cleaning block 22 is driven by rotation or rotation. The first reversing gear 2443 is transmission-connected with the first reversing rod 2441, and is rotatably connected with the second reversing rod 2442 for power transmission between different gears. The second reversing gear 2444 is plug-connected with the second reversing rod 2442 for power transmission. It can receive or output the power transmitted from the first reversing gear 2443, and realize power distribution of different directions and different components through the combination and plug-in of multiple rods and multiple gears to meet complex cleaning needs. When the transmission gear rod 241 drives the first reversing rod 2441 to rotate, the rotation or meshing relationship between the first reversing gear 2443 and the second reversing rod 2442 can be switched or synchronized to realize the driving of the second reversing gear 2444. With the help of the plug-in gear rod combination, power reversing and distribution can be realized in a limited space, and the mutual switching or synchronous rotation of the cleaning blocks can be realized through the reversing gears.

[0047] The mobility of the self-cleaning mechanism 2 is improved, and cleaning actions in multiple angles and directions can be achieved in a set of gear transmission system.

[0048] Furthermore, the pressure relief mechanism 4 includes a pressure relief pipe 41, a pressure relief valve 42, a first pressure sensor 43, a second pressure sensor 44, an impeller 45 and a pressure relief box 46. The pressure relief pipe 41 is connected to the valve body 11, the pressure relief valve 42 is tightly connected to the valve, the pressure relief valve 42 is connected to the pressure relief pipe 41, the pressure relief valve 42 is located at the lower end of the valve body 11, the first pressure sensor 43 is tightly connected to the valve body 11, the second pressure sensor 44 is tightly connected to the valve body 11, the first pressure sensor 43 is tightly connected to the first eccentric block 31, the pressure relief pipe 41 is connected to the pressure relief box 46, and the control shaft 131 is transmission connected to the impeller 45.

[0049] By adopting the above technical solution, the pressure relief pipe 41 is connected with the valve body 11, and is used to discharge or introduce the fluid into the pressure relief box 46 when the pressure exceeds the limit. The pressure relief valve 42 is tightly connected with the valve body 11, located at the lower end of the valve body 11, and is connected with the pressure relief pipe 41, and is responsible for automatically opening or closing the discharge channel. The first pressure sensor 43 is fastened to the first eccentric block 31, and the second pressure sensor 44 is fastened to the valve body 11, and is used to monitor the pressure data inside the valve body 11 or at the eccentric structure in real time. The impeller 45 is connected with the control shaft 131 in transmission, and the impeller 45 is driven to rotate by the control shaft 131. When the valve or pressure relief process is in progress, it can assist in guiding the fluid flow or generate a measurement. The pressure relief tank 46 is connected to the pressure relief pipe 41 to collect or store the discharged excess fluid to ensure the safety of the system. When the sensor detects that the pressure in the valve body 11 exceeds the preset range, the pressure relief valve 42 automatically opens under the control signal instruction or its own mechanical setting, and introduces the excess fluid into the pressure relief tank 46 through the pressure relief pipe 41. The real-time detection of the pressure sensor is linked to the action of the pressure relief valve 42 to prevent the pipeline or the valve body 11 from being subjected to excessive pressure. The impeller 45 can assist in the discharge of the fluid or provide additional detection signals through the rotation speed in this process, effectively preventing equipment damage or safety accidents caused by pressure overload, and ensuring the long-term stable and reliable operation of the system.

[0050] The working principle of the present invention is as follows: first, the first eccentric block 31, the second eccentric block 32, and the third eccentric block 33 are connected by sliding or fastening to form an eccentric system, so as to realize the eccentric movement of the valve flap 14 during the opening and closing process and enhance the sealing effect. The first sealing ring 34 is fastened to the first eccentric block 31 to form a multi-point sealing structure to avoid fluid leakage. The second sealing ring 35 is fastened to the valve flap 14 to form a sealing interface in the contact area between the valve flap 14 and the first eccentric block 31. The first eccentric hydraulic cylinder 36 and the second eccentric hydraulic cylinder 37 are respectively connected to the first and second eccentric blocks 32 in a transmission manner. The eccentric block is driven by hydraulic pressure to further fine-tune the position and fit of the valve disc 14. The eccentric hydraulic cylinder pushes or pulls the eccentric block during control to make the valve disc 14 slightly eccentric, thereby obtaining higher sealing performance. The sliding connection between the eccentric blocks and the driving force of the hydraulic cylinder are used to ensure that efficient sealing fit is always maintained during the opening and closing process. Through multi-stage eccentric cooperation, good sealing performance and pressure resistance of the valve are achieved, wear is reduced and service life is extended. Secondly, the first cleaning block 21 and the second cleaning block 22 are driven by the cleaning motor 23 to move or rotate to clean the valve body 11. The cleaning motor 23 is connected to the valve body 11 and the transmission assembly 24 to provide power for the cleaning block. The transmission assembly 24 transmits the power of the cleaning motor 23 to the first cleaning block 21 and the second cleaning block 22 respectively to achieve coordinated cleaning. The first stabilizing groove 212 (located on the first cleaning block 21) and the second stabilizing groove 221 (located on the second cleaning block 22) are both spiral and interconnected, and can guide the fluid or cleaning liquid to flow along the spiral path. The cleaning cavity 211 (located in the first cleaning block 21) and the connecting cavity 222 (located in the second cleaning block 22) are connected to the valve body 11 and the transmission assembly 24 to provide power for the cleaning block. The transmission assembly 24 transmits the power of the cleaning motor 23 to the first cleaning block 21 and the second cleaning block 22 respectively to achieve coordinated cleaning. The cleaning blocks 22 are hemispherical and cylindrical structures respectively, which are connected and used to store cleaning liquid or collect dirt. The stabilizing groove is used to improve the cleaning effect. The cleaning motor 23 is fixed on the valve body 11, and the output power is distributed to the two cleaning blocks through the transmission component 24, so that they can rotate or reciprocate at the corresponding positions inside and outside the valve body 11 for cleaning. A continuous and stable fluid channel is formed through the spiral stabilizing groove, and the structural advantages of the cleaning chamber 211 and the connecting chamber 222 are used to take away or collect dirt, ensuring that the valve can still maintain a good condition after long-term use, reducing failures or performance degradation caused by dirt accumulation.

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A high-performance butterfly valve capable of automatically adjusting pressure, characterized in that: The butterfly valve comprises a valve control mechanism (1), a self-cleaning mechanism (2), an eccentric mechanism (3) and a pressure relief mechanism (4); the valve control mechanism (1) is connected to the self-cleaning mechanism (2); the eccentric mechanism (3) is tightly connected to the valve control mechanism (1); the pressure relief mechanism (4) is connected to the valve control mechanism (1); the self-cleaning mechanism (2) is tightly connected to the valve control mechanism (1); and the pressure relief mechanism (4) is connected to the self-cleaning mechanism (2).

2. A high-performance butterfly valve capable of automatically adjusting pressure according to claim 1, characterized in that: The valve control mechanism (1) comprises a valve body (11), a pneumatic actuator (12), a control assembly (13) and a valve flap (14); the pneumatic actuator (12) and the valve body (11) are tightly connected; the pneumatic actuator (12) and the control assembly (13) are drivingly connected; the control assembly (13) and the valve flap (14) are drivingly connected; the valve flap (14) is circular; an abutment portion (141) is provided on the valve flap (14); the abutment portion (141) is rounded; and the valve flap (14) abuts against the eccentric mechanism (3).

3. A high-performance butterfly valve capable of automatically adjusting pressure according to claim 2, characterized in that: The control assembly (13) comprises a control shaft (131), a sliding block (132), a connecting column (133), a control block (134), a clamping electromagnetic block (135), a clamping elastic member (136) and a clamping magnetic block (137); the pneumatic actuator (12) is transmission-connected to the control shaft (131); the control shaft (131) is transmission-connected to the connecting column (133); the connecting column (133) is transmission-connected to the sliding block (132); The block (132) and the control block (134) are slidably connected, the clamping electromagnetic block (135) and the control block (134) are firmly connected, the clamping electromagnetic block (135) and the clamping elastic member (136) are firmly connected, the clamping magnetic block (137) and the clamping elastic member (136) are firmly connected, the clamping magnetic block (137) and the clamping electromagnetic block (135) are magnetically repelled, and the clamping magnetic block (137) and the control block (134) are slidably connected.

4. A high-performance butterfly valve capable of automatically adjusting pressure according to claim 3, characterized in that: The eccentric mechanism (3) comprises a first eccentric block (31), a second eccentric block (32), a third eccentric block (33), a first sealing ring (34), a second sealing ring (35), a first eccentric hydraulic cylinder (36) and a second eccentric hydraulic cylinder (37), wherein four of the first eccentric block (31) and four of the first sealing ring (34) are provided, the first eccentric block (31) abuts against the valve disc (14), the first sealing ring (34) and the first eccentric block (31) are tightly connected, the second sealing ring (35) and the valve disc (14) are tightly connected, and the The first eccentric block (31) and the second eccentric block (32) are slidably connected, the second eccentric block (32) and the third eccentric block (33) are slidably connected, the third eccentric block (33) and the valve body (11) are fixedly connected, the second eccentric hydraulic cylinder (37) and the third eccentric block (33) are fixedly connected, the second eccentric hydraulic cylinder (37) and the second eccentric block (32) are transmission-connected, the first eccentric hydraulic cylinder (36) and the second eccentric block (32) are fixedly connected, and the first eccentric hydraulic cylinder (36) and the first eccentric block (31) are transmission-connected.

5. A high-performance butterfly valve capable of automatically adjusting pressure according to claim 4, characterized in that: The first sealing ring (34) and the second sealing ring (35) have cross sections that are S-shaped and surround the seal; the first eccentric block (31) is provided with an abutment groove (311); the second sealing ring (35) abuts against the abutment groove (311); and the first eccentric block (31), the second eccentric block (32), the third eccentric block (33) and the first sealing ring (34) are all in a semi-crescent shape.

6. A high-performance butterfly valve capable of automatically adjusting pressure according to claim 5, characterized in that: The self-cleaning mechanism (2) comprises a first cleaning block (21), a second cleaning block (22), a cleaning motor (23) and a transmission assembly (24); the cleaning motor (23) and the valve body (11) are tightly connected; the cleaning motor (23) and the transmission assembly (24) are transmission-connected; the transmission assembly (24) and the first cleaning block (21) are transmission-connected; the transmission assembly (24) and the second cleaning block (22) are transmission-connected; the first cleaning block (21) is provided with a first stabilizing groove (212); the second cleaning block (22) is provided with a second stabilizing groove (221); the first stabilizing groove (212) and the second stabilizing groove (221) are transmission-connected; The first flow stabilizing groove (212) and the second flow stabilizing groove (221) are both spirally shaped around the axis of the first cleaning block (21); the first cleaning block (21) is provided with a cleaning cavity (211); the second cleaning block (22) is provided with a connecting cavity (222); the cleaning cavity (211) and the connecting cavity (222) are connected; the cleaning cavity (211) is hemispherical; the connecting cavity (222) is cylindrical; the first flow stabilizing groove (212) is arranged circumferentially of the cleaning cavity (211); and the second flow stabilizing groove (221) is arranged circumferentially of the connecting cavity (222).

7. A high-performance butterfly valve capable of automatically adjusting pressure according to claim 6, characterized in that: The transmission assembly (24) comprises a transmission gear rod (241), a reversing electromagnetic block (242), a reversing magnetic block (243), a reversing gear rod group (244) and a driven gear rod (245); the cleaning motor (23) is transmission-connected to the transmission gear rod (241); the transmission gear rod (241) is transmission-connected to the driven gear rod (245); the driven gear rod (245) is transmission-connected to the first cleaning block (21); the transmission gear rod (241) and the reversing gear rod group (244) are plug-connected for transmission; the driven gear rod (245) and the reversing gear rod group (244) are plug-connected for transmission; the reversing gear rod group (244) and the reversing magnetic block (243) are fastened; the reversing gear rod group (244) and the valve body (11) are rotationally connected; and the reversing gear rod group (244) and the second cleaning block (22) are transmission-connected.

8. A high-performance butterfly valve capable of automatically adjusting pressure according to claim 7, characterized in that: The reversing gear rod assembly (244) comprises a first reversing rod (2441), a second reversing rod (2442), a first reversing gear (2443) and a second reversing gear (2444); the first reversing rod (2441) and the transmission gear rod (241) are plug-connected for transmission connection; the second reversing rod (2442) and the second reversing gear (2444) are plug-connected for transmission connection; the first reversing rod (2441) and the first reversing gear (2443) are transmission connected; the second reversing rod (2442) and the second reversing gear (2444) are transmission connected; and the second reversing rod (2442) and the first reversing gear (2443) are rotationally connected.

9. A high-performance butterfly valve capable of automatically adjusting pressure according to claim 8, characterized in that: The pressure relief mechanism (4) comprises a pressure relief pipe (41), a pressure relief valve (42), a first pressure sensor (43), a second pressure sensor (44), an impeller (45) and a pressure relief box (46); the pressure relief pipe (41) is connected to the valve body (11); the pressure relief valve (42) is tightly connected to the valve; the pressure relief valve (42) is connected to the pressure relief pipe (41); the pressure relief valve (42) is located at the lower end of the valve body (11); the first pressure sensor (43) is tightly connected to the valve body (11); the second pressure sensor (44) is tightly connected to the valve body (11); the first pressure sensor (43) is tightly connected to the first eccentric block (31); the pressure relief pipe (41) is connected to the pressure relief box (46); and the control shaft (131) is drivingly connected to the impeller (45).

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