Deep sea electric ball valve based on magnetic force driving

Abstract

The deep-sea electric ball valve based on magnetic force driving comprises a deep-sea motor and a ball valve assembly, the deep-sea motor comprises a machine shell, a stator and a permanent magnet rotor, the ball valve assembly comprises a first shell, a second shell, a spherical valve element and a transmission shaft, and the spherical valve element is rotatably installed in the first shell and the second shell in a sealed mode; the first end of the transmission shaft is arranged on the spherical valve element in an anti-rotation mode, and the second end of the transmission shaft is arranged on the permanent magnet rotor in an anti-rotation mode. A first channel is arranged in the first shell, a second channel extending towards the third end is arranged in the second shell, and a through hole is formed in the spherical valve element in a penetrating mode. According to the deep-sea electric ball valve, the valve element and the rotor of the deep-sea motor are designed to be of an integrated structure, mechanical connection between the driving end and the driving head of a traditional ball valve is eliminated, and therefore the requirement for dynamic sealing is eliminated. The sealing performance of the valve is improved, the leakage risk is reduced, the structure of the valve is simplified, and the manufacturing cost and the maintenance difficulty are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of deep-sea pipeline valves, and particularly relates to a deep-sea electric ball valve based on magnetic driving. BACKGROUND

[0002] Deep-sea ball valves have a wide range of applications in the fields of deep-sea oil and gas exploitation, mineral development, scientific research, environmental monitoring, and energy development. These valves are responsible for controlling the flow of fluids in deep-sea pipeline systems, and their performance directly affects the safety and efficiency of the entire deep-sea operation.

[0003] Due to the particularity of the deep-sea environment, including extremely high water pressure, low temperature, corrosive fluids, and biological contamination, the driving end sealing surface of the deep-sea electric ball valve faces enormous challenges. These challenges require the valve to have extremely high pressure resistance, temperature resistance, corrosion resistance, and biological contamination resistance to ensure long-term stable operation in extreme environments. Traditional deep-sea ball valves usually connect the output end of the ball valve to the driving head through a mechanical connection, which is a mature design but faces serious challenges in the reliability of dynamic sealing in extreme environments such as deep-sea. Due to the need to maintain sealing performance in high-pressure seawater medium, the traditional dynamic sealing structure often fails to meet the requirements of long-term stable operation, and is prone to leakage and other problems, which not only affects the performance of the valve, but also may pose a threat to the safety of the entire system; especially in deep-sea environments with high pressure, the unreliability of the dynamic sealing in traditional electric ball valves becomes a serious problem.

[0004] Therefore, there is an urgent need for an innovative solution to overcome the challenges of dynamic sealing in existing deep-sea ball valves, ensuring long-term stable operation and high reliability of the valve in deep-sea environments. SUMMARY

[0005] The purpose of the present application is to provide a deep-sea electric ball valve based on magnetic driving to solve the above-mentioned problems existing in the existing deep-sea ball valve.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] A deep-sea electric ball valve based on magnetic driving, comprising a deep-sea motor and a ball valve assembly, wherein:

[0008] The deep-sea motor comprises a casing, a stator, and a permanent magnet rotor, the stator is arranged on the inner wall of the casing, and the permanent magnet rotor is rotatably installed in the casing;

[0009] The ball valve assembly comprises a first shell, a second shell, a spherical valve core and a transmission shaft, the second shell comprises a first end, a second end and a third end, the first end of the second shell is sealingly mounted on the first shell to form a sealed first chamber between the first shell and the second shell, the second end of the second shell is sealingly mounted on the casing, the spherical valve core is sealingly and rotatably mounted in the first chamber, the first end of the transmission shaft is rotationally arranged on the spherical valve core, and the second end of the transmission shaft is rotationally arranged on the permanent magnet rotor.

[0010] A first channel is arranged in the first shell, a second channel extending towards the third end is arranged in the second shell, a through hole is arranged through the spherical valve core, and the deep-sea motor drives the permanent magnet rotor to rotate after being powered on, drives the spherical valve core to rotate to a first position to make the first channel and the second channel communicate, or drives the spherical valve core to rotate to a second position to make the first channel and the second channel disconnect.

[0011] Optionally, the first end of the transmission shaft is square, a first square recess is arranged on the circumferential surface of the spherical valve core, and the first end of the transmission shaft is clearance-fitted and inserted into the first recess;

[0012] The second end of the transmission shaft is square, a second square recess is arranged on the end face of the permanent magnet rotor close to the transmission shaft, and the second end of the transmission shaft is clearance-fitted and inserted into the second recess.

[0013] Optionally, the deep-sea motor further comprises a resolver sensor, one end of the permanent magnet rotor away from the transmission shaft is rotatably mounted on the casing through a rotating shaft, and the resolver sensor is sleeved on the rotating shaft, the resolver sensor is configured to detect the rotating position of the permanent magnet rotor and send the obtained position information of the permanent magnet rotor to a control system.

[0014] Optionally, the second shell further comprises a second chamber in communication with the first chamber and extending towards the second end, and the transmission shaft is arranged in the second chamber.

[0015] Optionally, a support sleeve is detachably mounted in the second chamber, and the transmission shaft is arranged in the support sleeve.

[0016] Optionally, a ring of stop lips is arranged on the support sleeve, a stepped surface is arranged in the second chamber, and the stop lips and the stepped surface limit the mounting position of the support sleeve.

[0017] Optionally, a shoulder part is arranged on the part of the transmission shaft close to the spherical valve core, and the shoulder part is clearance-fitted with the inner wall of the second chamber.

[0018] Optionally, a sealing element is arranged between the spherical valve core and the first shell and the second shell.

[0019] Optionally, a watertight connector is arranged on the casing and configured to electrically connect the deep-sea motor with an external power supply and an external control system.

[0020] Optionally, the connecting end of the first casing is provided with an external thread segment, and the third end of the second casing is provided with an external thread segment.

[0021] The deep-sea electric ball valve based on magnetic force driving provided by the present application has the following advantages:

[0022] 1) The spherical valve core and the rotor of the deep-sea motor are designed as an integrated structure, eliminating the mechanical connection between the driving end and the driving head of the traditional ball valve, thereby eliminating the need for dynamic sealing. Not only does this improve the sealing performance of the valve and reduce the risk of leakage, but it also simplifies the structure of the valve and reduces manufacturing costs and maintenance difficulty;

[0023] 2) The response speed and control accuracy of the spherical valve core are improved because the direct driving method reduces energy loss during transmission, allowing the spherical valve core to respond more quickly to control signals and achieve more accurate opening control;

[0024] 3) The transmission shaft serves as both a transmission and a support for the permanent magnet rotor, further simplifying the overall structure;

[0025] 4) The support sleeve is provided to limit and support the transmission shaft, ensuring the stability and reliability of the transmission shaft operation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the deep-sea electric ball valve based on magnetic force driving provided by the present application;

[0027] Figure 2 is Figure 1 a local enlarged view of position A in DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0029] Existing deep-sea ball valves usually adopt dynamic sealing structures, which are difficult to meet the requirements of long-term stable operation in deep-sea environments and are prone to leakage and other problems, which not only affects the performance of the valve but also may pose a threat to the safety of the entire system.

[0030] Therefore, please refer to Figure 1 and Figure 2As shown, the deep-sea electric ball valve based on magnetic force driving provided by the embodiment of the application comprises a deep-sea motor 10 and a ball valve assembly 20. The deep-sea motor 10 comprises a casing 11, a stator 12 and a permanent magnet rotor 13. The stator 12 is arranged on the inner wall of the casing 11, and the permanent magnet rotor 13 is rotatably installed in the casing 11. The ball valve assembly 20 comprises a first casing 21, a second casing 22, a spherical valve core 23 and a transmission shaft 24. The second casing 22 comprises a first end 220, a second end 221 and a third end 222. The first end 220 of the second casing 22 is sealingly installed on the first casing 21, so that a sealed first chamber 25 is formed between the first casing 21 and the second casing 22. The second end 221 of the second casing 22 is sealingly installed on the casing 11. The spherical valve core 23 is rotatably sealingly installed in the first chamber 25. The first end of the transmission shaft 24 is rotationally arranged on the spherical valve core 23, and the second end of the transmission shaft 24 is rotationally arranged on the permanent magnet rotor 13. The first casing 21 is provided with a first channel 210, and the second casing 22 is provided with a second channel 223 extending towards the third end 222. A through hole is formed through the spherical valve core 23. After the deep-sea motor 10 is powered on, the permanent magnet rotor 13 is driven to rotate, and the spherical valve core 23 is driven to rotate to a first position, so that the first channel 210 and the second channel 223 are communicated, or the spherical valve core 23 is driven to rotate to a second position, so that the first channel 210 and the second channel 223 are disconnected.

[0031] It should be noted that the specific installation mode of the casing 11, the stator 12 and the permanent magnet rotor 13 is the conventional technology of the existing deep-sea motor, which will not be described in detail here.

[0032] Specifically, the first end 220 and the third end 222 are horizontally arranged, and the second end 221 is perpendicular to the third end 222.

[0033] The deep-sea electric ball valve based on magnetic force driving provided by the application connects the permanent magnet rotor 13 and the spherical valve core 23 into one body through the transmission shaft 24. When the deep-sea motor 10 is powered on, the electromagnetic force generated by the alternating magnetic field thereof drives the permanent magnet rotor 13 to rotate, thereby driving the transmission shaft 24 and the spherical valve core 23 to rotate, so that the left and right connecting ports of the ball valve are communicated. The integrated structure can eliminate the mechanical connection between the driving end and the driving head of the traditional ball valve, thereby eliminating the need for dynamic sealing. Not only the sealing performance of the valve is improved, the risk of leakage is reduced, but also the structure of the valve is simplified, the manufacturing cost and maintenance difficulty are reduced; and the response speed and control accuracy of the spherical valve core 23 are improved, because the direct driving mode reduces the loss in the energy transmission process, so that the spherical valve core 23 can respond to the control signal more quickly and realize more accurate opening control.

[0034] As an implementation form, the first end of the transmission shaft 24 is provided in a square shape, a first square-shaped recess 230 is formed on the circumferential surface of the ball valve core 23, and the first end of the transmission shaft 24 is inserted into the first recess 230 in a clearance fit; the second end of the transmission shaft 24 is provided in a square shape, a second square-shaped recess 130 is formed on the end surface of the permanent magnet rotor 13 close to the transmission shaft 24, and the second end of the transmission shaft 24 is inserted into the second recess 130 in a clearance fit.

[0035] It can be seen that by providing the two ends of the transmission shaft 24 in a square shape and inserting the two ends of the transmission shaft 24 into the first recess 230 and the second recess 130 in a clearance fit, a simple structure is provided, which is convenient for processing and transmission of the transmission shaft 24; at the same time, the transmission shaft can also support one end of the permanent magnet rotor 13, and only one end of the permanent magnet rotor 13 needs to be installed in the machine shell 11, thereby simplifying the overall structure.

[0036] As an implementation form, the deep-sea motor 10 further comprises a resolver sensor 14, one end of the permanent magnet rotor 13 away from the transmission shaft 24 is rotatably installed on the machine shell 11 through a rotating shaft 15, and the resolver sensor 14 is sleeved on the rotating shaft 15. The resolver sensor 14 is configured to detect the rotational position of the permanent magnet rotor 13 and send the obtained position information of the permanent magnet rotor 13 to the control system.

[0037] Specifically, the control system can accurately calculate and control the rotation angle of the deep-sea motor 10 according to the operation requirements of the valve, such as opening or closing, so as to ensure that the ball valve accurately reaches the predetermined position. This precise rotational position control not only improves the accuracy of fluid control, but is particularly important for application scenarios that require fine adjustment of fluid flow, and also enhances the stability and response speed of the entire system. In addition, the data provided by the resolver sensor 14 also helps to monitor the operating state of the motor and valve, enabling early diagnosis and prevention of faults, and ensuring long-term stable operation of the system. The motor integrated with the resolver sensor 14 can also support remote monitoring and control, allowing operators to remotely access sensor data, monitor valve status in real time, and make necessary remote adjustments, making the deep-sea motor ball valve more suitable for use in complex and harsh deep-sea environments.

[0038] As an implementation form, the second shell 22 further comprises a second cavity 224 in communication with the first cavity 25 and extending towards the second end 221, and the transmission shaft 24 is arranged in the second cavity 224.

[0039] As an implementation form, a support sleeve 26 is detachably installed in the second cavity 224, and the transmission shaft 24 is arranged in the support sleeve 26.

[0040] Specifically, the second chamber 224 is provided with an internally threaded section, and the support sleeve 26 is provided with an externally threaded section, and the support sleeve 26 is installed in the second chamber 224 through the threaded structure.

[0041] It can be seen that by arranging the support sleeve 26 in the second chamber 224, the transmission shaft 24 is limited and supported, and the stability and reliability of the transmission shaft 24 are ensured.

[0042] As an embodiment, the support sleeve 26 is provided with a ring-shaped stop 260, and the second chamber 224 is provided with a stepped surface 225, and the cooperation of the stop 260 and the stepped surface 225 limits the installation position of the support sleeve 26.

[0043] As an embodiment, the transmission shaft 24 is provided with a shoulder portion 240 near the spherical valve core 23, and the shoulder portion 240 is in clearance fit with the inner wall of the second chamber 224.

[0044] Specifically, the second chamber 224 is provided with a stepped hole 226, and the shoulder portion 240 is in clearance fit with the inner wall of the small-diameter portion of the stepped hole 226.

[0045] It can be seen that by the cooperation of the shoulder portion 240 and the stepped hole 226, the driving end of the transmission shaft 24 is supported and limited, and the stability and reliability of the transmission shaft 24 are further improved.

[0046] As an embodiment, the spherical valve core 23 is provided with a sealing element 27 between the first housing 21 and the second housing 22.

[0047] It can be seen that by arranging the sealing element 27, the spherical valve core 23 is sealed with the first housing 21 and the second housing 22.

[0048] As an embodiment, the machine shell 11 is provided with a water-tight connector 16, and the water-tight connector 16 is configured to electrically connect the deep-sea motor 10 with an external power supply and an external control system.

[0049] As an embodiment, the connecting end of the first housing 21 is provided with an externally threaded section, and the third end 222 of the second housing 22 is provided with an externally threaded section, which is convenient for connecting with an external pipeline.

[0050] As an embodiment, the outer wall of the machine shell 11 is provided with a cooling fin 110 to improve the heat dissipation performance of the machine shell 11.

[0051] The approximate working principle of the deep-sea electric ball valve based on magnetic force driving provided by the embodiments of the present application is as follows: the working process of the deep-sea electric ball valve starts from receiving an opening or closing instruction sent by a control system, then the deep-sea motor 10 is activated, the spherical valve element 23 integrated with the permanent magnet rotor 13 is directly driven by the transmission shaft 24 to realize the rotary motion of the spherical valve element 23, when the spherical valve element 23 rotates to a specific angle, the fluid passage originally blocked is opened to allow the fluid to pass through, at the same time, the control system can accurately control the fluid flow by adjusting the rotary speed and angle of the permanent magnet rotor 13. In the valve closing process, the permanent magnet rotor 13 rotates reversely to make the spherical valve element 23 return to the initial position to reseal the fluid passage.

[0052] The above embodiments only illustrate the basic principle and characteristics of the present application, the present application is not limited by the above examples, various changes and alterations of the present application can be made without departing from the spirit and scope of the present application, and these changes and alterations all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A deep-sea electric ball valve based on magnetic force actuation, characterized in that, The magnetically driven deep-sea electric ball valve includes a deep-sea motor and a ball valve assembly, wherein: The deep-sea motor includes a housing, a stator, and a permanent magnet rotor. The stator is disposed on the inner wall of the housing, and the permanent magnet rotor is rotatably mounted inside the housing. The ball valve assembly includes a first housing, a second housing, a spherical valve core, and a drive shaft. The second housing includes a first end, a second end, and a third end. The first end of the second housing is sealed and mounted on the first housing to form a sealed first chamber between the first housing and the second housing. The second end of the second housing is sealed and mounted on the housing. The spherical valve core is rotatably and sealed and mounted in the first chamber. The first end of the drive shaft is anti-rotationally mounted on the spherical valve core, and the second end of the drive shaft is anti-rotationally mounted on the permanent magnet rotor. The first housing has a first channel, and the second housing has a second channel extending toward the third end. The spherical valve core has a through hole. When the deep-sea motor is powered on, it drives the permanent magnet rotor to rotate, which in turn drives the spherical valve core to rotate to a first position, so that the first channel and the second channel are connected, or drives the spherical valve core to rotate to a second position, so that the first channel and the second channel are disconnected.

2. The deep-sea electric ball valve based on magnetic drive according to claim 1, characterized in that, The first end of the drive shaft is square, and a square first groove is formed on the circumferential surface of the spherical valve core. The first end of the drive shaft is inserted into the first groove with clearance fit. The second end of the drive shaft is square, and a square second groove is formed on the end face of the permanent magnet rotor near the drive shaft. The second end of the drive shaft is inserted into the second groove with clearance fit.

3. The deep-sea electric ball valve based on magnetic drive according to claim 1, characterized in that, The deep-sea motor also includes a resolver sensor. The end of the permanent magnet rotor away from the drive shaft is rotatably mounted on the housing via a rotating shaft. The resolver sensor is mounted on the rotating shaft and is configured to detect the rotational position of the permanent magnet rotor and send the obtained position information of the permanent magnet rotor to the control system.

4. The deep-sea electric ball valve based on magnetic drive according to claim 1, characterized in that, The second housing further includes a second chamber that communicates with the first chamber and extends toward the second end, and the drive shaft is disposed in the second chamber.

5. The deep-sea electric ball valve based on magnetic drive according to claim 4, characterized in that, A support sleeve is detachably installed in the second chamber, and the drive shaft passes through the support sleeve.

6. The deep-sea electric ball valve based on magnetic drive according to claim 5, characterized in that, The support sleeve is provided with a stop ring, and the second cavity is provided with a stepped surface. The cooperation between the stop ring and the stepped surface limits the installation position of the support sleeve.

7. The deep-sea electric ball valve based on magnetic drive according to claim 4, characterized in that, The portion of the drive shaft near the spherical valve core is provided with a shoulder, which is in clearance fit with the inner wall of the second chamber.

8. The deep-sea electric ball valve based on magnetic drive according to claim 1, characterized in that, A sealing element is provided between the spherical valve core and the first and second housings.

9. The deep-sea electric ball valve based on magnetic drive according to claim 1, characterized in that, The housing is provided with a watertight connector, which is configured to electrically connect the deep-sea motor to an external power source and an external control system.

10. The deep-sea electric ball valve based on magnetic drive according to claim 1, characterized in that, The first housing has an external threaded section at its connecting end, and the second housing has an external threaded section at its third end.

Images