Variable differential pressure self-adjusting ball valve
By designing a variable differential pressure self-regulating ball valve, and utilizing the cooperation of a limit plate, slide bar, and float ball, combined with an electric motor and gear drive, automatic flow regulation is achieved when the differential pressure changes. This solves the problems of inaccurate flow regulation and system instability of traditional ball valves when the differential pressure changes, and improves the stability and safety of the system.
Patent Information
- Application Number
- CN202520138376.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-21
AI Technical Summary
In complex fluid transport systems, existing ball valves are insufficient in their ability to self-regulate in the face of variable differential pressure. This makes it difficult for them to automatically adapt to changes in differential pressure, affecting the accuracy of flow regulation and the stability of the system.
A variable differential pressure self-regulating ball valve was designed, comprising a ball valve body, an upper protective shell, a water outlet, a ball, a fixed rod, a floating mechanism, a sensing mechanism, a sensor mechanism, a drive mechanism, and a driven mechanism. Through the cooperation of the limit plate, the slide rod, and the float, real-time monitoring and automatic regulation of the water level are achieved. Combined with the drive of an electric motor and gears, precise flow control is achieved.
It achieves automatic flow regulation when differential pressure changes, improves flow accuracy and system stability, extends the service life of ball valves, reduces leakage risk, and reduces noise and vibration.
Smart Images
Figure CN223578928U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of ball valve, specifically a variable differential pressure self -adjusting ball valve. BACKGROUND
[0002] In the prior art, in numerous industrial fields, such as petroleum chemical industry, electric power, heating, gas delivery, etc., the accurate control of fluid is crucial. As a commonly used fluid control valve, the ball valve is widely used due to its convenient operation, good sealing performance and other characteristics.
[0003] The traditional ball valve faces many challenges in the use process. In some complex fluid delivery systems, the pressure difference of the fluid is often in a dynamic change state. For example, when delivering liquid or gas through a long-distance pipeline, as the resistance along the pipeline changes, the flow demand fluctuates in different regions, and the operating conditions of upstream and downstream equipment change, the pressure difference in the pipeline will change in a large range. When the pressure difference changes greatly, the traditional ball valve is difficult to automatically adapt to such changes for effective flow regulation. If the differential pressure is too high, it may cause the valve sealing components to bear excessive pressure, accelerate wear, reduce the service life of the valve, and even cause leakage risk. At the same time, too high differential pressure may also cause problems such as vibration and noise in the pipeline system, affecting the stability and safety of the entire system. When the differential pressure is too low, it may not meet the precise control of flow required by the process, resulting in a decrease in production efficiency or unstable product quality.
[0004] In addition, for some process that requires high flow stability, such as reactant flow control in fine chemical industry, medium flow regulation in high-precision heating or refrigeration systems, etc., the traditional ball valve lacks active differential pressure regulation capability and is difficult to maintain stable output of fluid flow within the set range. Therefore, a new type of ball valve that can automatically adjust its opening according to the differential pressure change to accurately control the fluid flow, adapt to different differential pressure conditions and ensure stable operation of the system is urgently needed. Therefore, the development of a variable differential pressure self-adjusting ball valve is in urgent need to fill the gap of traditional ball valves in dealing with variable differential pressure conditions and meet the increasing demand for accurate and stable control of fluid in modern industry.
[0005] Through long-term observation, it is found that the variable differential pressure automatic regulating valve can solve the above problems.
[0006] Therefore, the utility model provides a variable differential pressure self-adjusting ball valve. UTILITY MODEL CONTENT
[0007] In order to make up for the shortcomings of the prior art and solve at least one problem in the background art, a variable differential pressure self-adjusting ball valve is proposed.
[0008] The utility model solves its technical problem adopts the technical scheme: A kind of variable differential pressure self-regulating ball valve of the utility model, including ball valve body, upper shell, water outlet, handle, ball, first fixed link, second fixed link, floating mechanism, sensing mechanism, sealing ring, sensing mechanism, driving mechanism, driven mechanism;The top of the ball valve body is fixedly installed with upper shell, one side of the ball valve body is fixedly installed with water outlet, the inner wall of the ball valve body is rotatably installed with ball, the top of the ball is fixedly installed with first fixed link, the first fixed link passes through the ball valve body and is rotatably installed with the ball valve body, the inner wall of the ball valve body is provided with floating mechanism, the floating mechanism can move up and down in real time following the water level of the inner wall of ball valve body, the inner wall of the ball valve body is provided with sensing mechanism, the sensing mechanism is used for sensing the fluctuation of floating mechanism and can transmit signal according to the fluctuation of floating mechanism, the inner wall of the ball valve body is provided with sensing mechanism, and the sensing mechanism is used for sensing low pressure water level in the inner wall of the ball valve body, the bottom of the inner wall of the upper shell is provided with driving mechanism, the driving mechanism can receive the signal of sensing mechanism and sensing mechanism to drive driven mechanism to rotate, the bottom of the inner wall of the ball is provided with driven mechanism, the driven mechanism can realize the rotation of ball by the driving of driving mechanism, the floating mechanism includes limiting plate, first sliding rod and first float ball;The one side of the top of the inner wall of the ball valve body is fixedly installed with the limiting plate, the first sliding rod is slidably installed in the inner wall of limiting plate, the first sliding rod is fixedly installed with first float ball at the end away from limiting plate, and the first float ball is located in the inner wall of the ball valve body, the cooperation of limiting plate, first sliding rod and first float ball in the scheme can monitor the water level of the inner wall of ball valve body in real time and move up and down, ensure the normal use of sensing mechanism, and make the utility model have automatic adjustment effect simultaneously.
[0009] Preferably, the sensing mechanism includes a second sliding rod, a return spring and a sensing module; the second sliding rod is slidably installed on the top of the limiting plate, the end of the second sliding rod away from the limiting plate is fixedly installed with the sensing module, the return spring is fixedly installed on the bottom of the limiting plate, the end of the return spring away from the limiting plate is fixedly installed with the sensing module, and the second sliding rod is located in the inner wall of the return spring; in the scheme, the cooperation of the second sliding rod and the return spring can move upward in time when the first float ball floats, and also makes the sensing module closely adhere to the first float ball to realize more accurate sensing, and the return spring resets the sensing module when the water level drops.
[0010] Preferably, the top of the inner wall of the ball valve body is fixedly installed with a sealing ring, the sealing ring is located below the sensing module, and the sealing ring is located above the first float ball; in the scheme, the sealing ring can cooperate with the first float ball to realize absolute sealing of the hole, ensure that no liquid flows out, improve the sealing property of the ball valve body, play a sealing and liquid leakage prevention role, and guarantee the safety during use.
[0011] Preferably, the sensing mechanism comprises a third sliding rod, a second floating ball, a support plate and a pressure sensor; the third sliding rod is slidingly installed on the inner wall of the ball valve body away from the side of the ball, the third sliding rod penetrates through the ball valve body, one end of the third sliding rod is fixedly installed with the second floating ball, the end of the third sliding rod away from the second floating ball is fixedly installed with the support plate, the side of the support plate close to the third sliding rod is fixedly installed with the pressure sensor, and the pressure sensor is located outside the ball valve body; in this scheme, the third sliding rod and the second floating ball are used in cooperation to realize movement through the water pressure, when the water pressure is higher than the second floating ball, the second floating ball moves into the hole due to the pressure, and the support plate and the pressure sensor are used in cooperation to realize sensing when the water pressure is too low to contact the ball valve body.
[0012] Preferably, the driving mechanism comprises a rotating disc, an electric motor and a threaded shaft; the rotating disc is rotatably installed at the bottom of the inner wall of the upper shell, the top of the rotating disc is fixedly installed with the electric motor through a support, and the output end of the electric motor is fixedly installed with the threaded shaft; in this scheme, the rotating disc can make the electric motor and the threaded shaft rotate by a certain angle, so that the threaded shaft and the gear are disengaged, and the electric motor and the threaded shaft are used in cooperation to provide effective kinetic energy for the gear, so that the gear can realize the opening and closing of the ball and the flow rate of the liquid through the first fixed rod.
[0013] Preferably, the driving mechanism comprises a rotating disc, an electric motor and a threaded shaft; the rotating disc is rotatably installed at the bottom of the inner wall of the upper shell, the top of the rotating disc is fixedly installed with the electric motor through a support, and the output end of the electric motor is fixedly installed with the threaded shaft; in this scheme, the rotating disc can make the electric motor and the threaded shaft rotate by a certain angle, so that the threaded shaft and the gear are disengaged, and the electric motor and the threaded shaft are used in cooperation to provide effective kinetic energy for the gear, so that the gear can realize the opening and closing of the ball and the flow rate of the liquid through the first fixed rod.
[0014] The beneficial effects of the utility model are as follows:
[0015] 1. The variable differential pressure self-adjusting ball valve, through the setting of the limiting plate, the first sliding rod and the first floating ball, the cooperation of the limiting plate, the first sliding rod and the first floating ball can realize real-time monitoring and up-down movement of the water level of the inner wall of the ball valve body, ensure the normal use of the sensing mechanism, and make the utility model have automatic adjustment function.
[0016] 2. The variable differential pressure self-adjusting ball valve, through the setting of the second sliding rod, the reset spring and the induction module, cooperation of the second sliding rod and the reset spring can move upward in time when the first floating ball floats, and the induction module can also closely adhere to the first floating ball to realize more accurate induction, and the reset spring resets the induction module when the water level drops. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model makes further explanation in combination with the drawings.
[0018] Figure 1 It is the front view of the utility model;
[0019] Figure 2 It is the half cut main view in the utility model;
[0020] Figure 3 It is the local half cut section view in the utility model;
[0021] Figure 4 It is the upper shell half cut structure schematic diagram in the utility model;
[0022] Figure 5 It is the utility model in Figure 2 The enlarged structure schematic diagram of A place in the middle;
[0023] Figure 6 It is the utility model in Figure 3 The enlarged structure schematic diagram of B place in the middle.
[0024] Legend:
[0025] 1, ball valve body;2, upper shell;3, water outlet end;4, handle;5, ball;6, first fixed rod;7, second fixed rod;8, floating mechanism;801, limit plate;802, first sliding rod;803, first floating ball;9, induction mechanism;901, second sliding rod;902, reset spring;903, induction module;1000, sealing ring;11, sensing mechanism;1101, third sliding rod;1102, second floating ball;1103, support plate;1104, pressure sensor;12, driving mechanism;1201, rotating disc;1202, electric motor;1203, threaded shaft;13, driven mechanism;1301, gear;1302, shaft support;1303, pull rod. DETAILED DESCRIPTION
[0026] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.
[0027] Specific embodiments are given below.
[0028] As Figures 1 to 6As shown, the utility model discloses a variable differential pressure self -adjusting ball valve, including ball valve body 1, upper shell 2, water outlet end 3, handle 4, ball 5, first fixed link 6, second fixed link 7, floating mechanism 8, response mechanism 9, sealing ring 1000, sensing mechanism 11, drive mechanism 12, driven mechanism 13, the top of ball valve body 1 is fixedly installed with upper shell 2, one side of ball valve body 1 is fixedly installed with water outlet end 3, and the inner wall of ball valve body 1 is rotationally installed with ball 5, and the top of ball 5 is fixedly installed with first fixed link 6, and first fixed link 6 is through ball valve body 1 and is rotationally installed with ball valve body 1, and the inner wall of ball valve body 1 is provided with floating mechanism 8, floating mechanism 8 can follow the water level of the inner wall of ball valve body 1 and move up and down in real time, the inner wall of ball valve body 1 is provided with response mechanism 9, response mechanism 9 is used for sensing the fluctuation of floating mechanism 8 and can transmit signals according to the fluctuation of floating mechanism 8, the inner wall of ball valve body 1 is provided with sensing mechanism 11, and sensing mechanism 11 is used for sensing the low pressure water level in the inner wall of ball valve body 1, and the bottom of the inner wall of upper shell 2 is provided with drive mechanism 12, drive mechanism 12 can receive the signals of response mechanism 9 and sensing mechanism 11 to drive driven mechanism 13 to rotate, the bottom of the inner wall of ball 5 is provided with driven mechanism 13, and driven mechanism 13 can realize the rotation of ball 5 by the driving of drive mechanism 12, floating mechanism 8 includes limiting plate 801, first slide 802 and first float ball 803, limiting plate 801 is fixedly installed on one side of the inner wall top of ball valve body 1, first slide 802 is slidably installed on the inner wall of limiting plate 801, and the end of first slide 802 away from limiting plate 801 is fixedly installed with first float ball 803, and first float ball 803 is located in the inner wall of ball valve body 1, response mechanism 9 includes second slide 901, reset spring 902 and sensing module 903, second slide 901 is slidably installed on the top of limiting plate 801, the end of second slide 901 away from limiting plate 801 is fixedly installed with sensing module 903, reset spring 902 is fixedly installed on the bottom of limiting plate 801, the end of reset spring 902 away from limiting plate 801 is fixedly installed with sensing module 903, second slide 901 is located in the inner wall of reset spring 902, the top of the inner wall of ball valve body 1 is fixedly installed with sealing ring 1000, sealing ring 1000 is located below sensing module 903, sealing ring 1000 is located above first float ball 803, and sensing mechanism 11 includes third slide 1101, second float ball 1102, support plate 1103 and pressure sensor 1104.The third sliding rod 1101 is slidingly installed on the inner wall of the ball valve body 1 away from the side of the ball 5, the third sliding rod 1101 penetrates the ball valve body 1, one end of the third sliding rod 1101 is fixedly installed with the second floating ball 1102, the end of the third sliding rod 1101 away from the second floating ball 1102 is fixedly installed with the supporting plate 1103, the side of the supporting plate 1103 close to the third sliding rod 1101 is fixedly installed with the pressure sensor 1104, the pressure sensor 1104 is located on the outside of the ball valve body 1, the driving mechanism 12 comprises a rotating disc 1201, an electric motor 1202 and a threaded shaft 1203; the rotating disc 1201 is rotationally installed on the bottom of the inner wall of the upper cover 2, the top of the rotating disc 1201 is fixedly installed with the electric motor 1202 through a support, the output end of the electric motor 1202 is fixedly installed with the threaded shaft 1203; the driven mechanism 13 comprises a gear 1301, a shaft support 1302 and a pull rod 1303; the gear 1301 is fixedly installed on the top of the first fixed rod 6, the top of the gear 1301 is fixedly installed with the second fixed rod 7, the second fixed rod 7 penetrates the upper cover 2 and is rotationally installed with the upper cover 2, the top end of the second fixed rod 7 is fixedly installed with the handle 4, the shaft support 1302 is slidingly installed on the bottom of the inner wall of the upper cover 2, the electric motor 1202 is located in the inner wall of the shaft support 1302 and is rotationally installed with the shaft support 1302, one side of the shaft support 1302 is fixedly installed with the pull rod 1303, the pull rod 1303 penetrates to the outside of the upper cover 2, the pull rod 1303 is movably installed with the upper cover 2, and the gear 1301 is engaged with the threaded shaft 1203.
[0029] As Figures 1 to 6The cooperation of the limiting plate 801, the first sliding rod 802 and the first floating ball 803 can monitor the water level of the inner wall of the ball valve body 1 in real time and move up and down, ensure the normal use of the sensing mechanism 9, and make the utility model have the automatic adjustment function. The cooperation of the second sliding rod 901 and the reset spring 902 can move upward in time when the first floating ball 803 floats, and also make the sensing module 903 closely adhere to the first floating ball 803 to realize more accurate sensing. When the water level drops, the reset spring 902 resets the sensing module 903. The sealing ring 1000 can cooperate with the first floating ball 803 to realize the absolute sealing of the hole, ensure that no liquid flows out, improve the sealing performance of the ball valve body 1, play the sealing and liquid leakage prevention role, and ensure the safety during use. The cooperation of the third sliding rod 1101 and the second floating ball 1102 can realize movement through the pressure of water. When the water pressure overflows the second floating ball 1102, it will move into the hole due to the pressure. The cooperation of the supporting plate 1103 and the pressure sensor 1104 can contact the ball valve body 1 when the water pressure is too low to realize sensing. The rotating disc 1201 can make the electric motor 1202 and the threaded shaft 1203 rotate by a certain angle, so that the threaded shaft 1203 and the gear 1301 are disengaged. The cooperation of the electric motor 1202 and the threaded shaft 1203 can provide effective kinetic energy for the gear 1301, so that the gear 1301 can realize the opening and closing of the ball 5 and the flow rate of the liquid through the first fixed rod 6. The setting of the gear 1301 can transmit the kinetic energy of the threaded shaft 1203 to the ball 5, and also prevent the ball 5 from rotating when it passes through the strong water pressure. The cooperation of the shaft support 1302 and the pull rod 1303 can cooperate with the rotating disc 1201 to realize the disengagement of the threaded shaft 1203 and the gear 1301
[0030] Working principle: if the utility model is used, first, the ball valve body 1 and one end of the water outlet end 3 are connected to the conveying pipeline, then the floodgate is opened, when the water flows through the inner wall of the ball valve body 1, the ball 5 flows into the water outlet end 3, when the water pressure is too high, the three rectangular holes on the surface of the ball 5 can shunt the high-pressure water, preventing the water flow from damaging the connection interface of the upper shell 2, at the same time, when the water pressure passes through the inner wall of the ball valve body 1, the second floating ball 1102 moves to one side due to the water pressure until it blocks the hole, when the water pressure is too high, the first floating ball 803 slowly rises due to its buoyancy until it rises to the sealing ring 1000 and cooperates with the sealing ring 1000 to block the hole, when the first floating ball 803 moves upward, the sensing module 903 senses the signal and sends instructions to the operating system, then the user can start the electric motor 1202, which drives the threaded shaft 1203 to rotate, when the threaded shaft 1203 rotates, the gear 1301 rotates, which drives the first fixed rod 6 to move the ball 5, when the side hole of the ball 5 moves to the inner wall of the ball valve body 1 and aligns with it, the water is not shunted again, so that the water can quickly flow through, when the water pressure is too low, the second floating ball 1102 moves to the inner wall of the ball valve body 1 by the push of the air pressure on one side, when the second floating ball 1102 moves to a certain extent, the pressure sensor 1104 contacts the ball valve body 1, thereby sending a signal to the operating system that the pressure is too low, the user can adjust the forward and reverse rotation of the electric motor 1202 to realize the closing of the ball valve, and can also realize the automatic adjustment function by adjusting the angle of the electric motor 1202 driven by the real-time sensing of the sensing module 903 and the pressure sensor 1104, the user can pull the pull rod 1303 to disengage the threaded shaft 1203 and the gear 1301, then the handle 4 is used to manually open and close the valve.
[0031] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, the above examples and descriptions in the specification are only to illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A variable differential pressure self-regulating ball valve, comprising a ball valve body (1), an upper protective shell (2), an outlet end (3), a handle (4), a ball (5), a first fixed rod (6), a second fixed rod (7), a floating mechanism (8), a sensing mechanism (9), a sealing ring (1000), a sensing mechanism (11), a driving mechanism (12), and a driven mechanism (13); characterized in that: The top of the ball valve body (1) is fixedly installed with an upper protective shell (2), one side of the ball valve body (1) is fixedly installed with a water outlet end (3), the inner wall of the ball valve body (1) is rotatably installed with a ball (5), the top of the ball (5) is fixedly installed with a first fixed rod (6), the first fixed rod (6) penetrates through the ball valve body (1) and is rotatably installed with the ball valve body (1), the inner wall of the ball valve body (1) is provided with a floating mechanism (8), the floating mechanism (8) can move up and down in real time following the water level of the inner wall of the ball valve body (1), the inner wall of the ball valve body (1) is provided with a sensing mechanism (9), the sensing mechanism (9) is used for sensing the fluctuation of the floating mechanism (8) and can transmit signals according to the fluctuation of the floating mechanism (8), the inner wall of the ball valve body (1) is provided with a sensing mechanism (11), the sensing mechanism (11) is used for sensing the low-pressure water level in the inner wall of the ball valve body (1), the bottom of the inner wall of the upper protective shell (2) is provided with a driving mechanism (12), the driving mechanism (12) can receive the signals of the sensing mechanism (9) and the sensing mechanism (11) to drive a driven mechanism (13) to rotate, the bottom of the inner wall of the ball (5) is provided with the driven mechanism (13), the driven mechanism (13) can realize the rotation of the ball (5) through the driving of the driving mechanism (12).
2. A variable differential pressure self-regulating ball valve according to claim 1, characterized in that: The floating mechanism (8) comprises a limiting plate (801), a first sliding rod (802) and a first floating ball (803); the limiting plate (801) is fixedly installed on one side of the top of the inner wall of the ball valve body (1), the first sliding rod (802) is slidingly installed on the inner wall of the limiting plate (801), one end of the first sliding rod (802) away from the limiting plate (801) is fixedly installed with the first floating ball (803), and the first floating ball (803) is located in the inner wall of the ball valve body (1).
3. A variable differential pressure self-regulating ball valve according to claim 2, wherein: The sensing mechanism (9) comprises a second sliding rod (901), a reset spring (902) and a sensing module (903); the second sliding rod (901) is slidingly installed on the top of the limiting plate (801), one end of the second sliding rod (901) away from the limiting plate (801) is fixedly installed with the sensing module (903), the reset spring (902) is fixedly installed on the bottom of the limiting plate (801), one end of the reset spring (902) away from the limiting plate (801) is fixedly installed with the sensing module (903), and the second sliding rod (901) is located in the inner wall of the reset spring (902).
4. A variable differential pressure self-regulating ball valve according to claim 3, wherein: The top of the inner wall of the ball valve body (1) is fixedly installed with a sealing ring (1000), the sealing ring (1000) is located below the sensing module (903), and the sealing ring (1000) is located above the first floating ball (803).
5. A variable differential pressure self-regulating ball valve according to claim 4, wherein: The sensing mechanism (11) comprises a third sliding rod (1101), a second floating ball (1102), a support plate (1103) and a pressure sensor (1104); the third sliding rod (1101) is slidingly installed on the inner wall of the ball valve body (1) away from the side of the ball (5), the third sliding rod (1101) penetrates the ball valve body (1), one end of the third sliding rod (1101) is fixedly installed with the second floating ball (1102), the end of the third sliding rod (1101) away from the second floating ball (1102) is fixedly installed with the support plate (1103), the side of the support plate (1103) close to the third sliding rod (1101) is fixedly installed with the pressure sensor (1104), and the pressure sensor (1104) is located on the outer side of the ball valve body (1).
6. A variable differential pressure self-regulating ball valve according to claim 5, wherein: The driving mechanism (12) comprises a rotating disc (1201), an electric motor (1202) and a threaded shaft (1203); the rotating disc (1201) is rotatably installed at the bottom of the inner wall of the upper shell (2), the top of the rotating disc (1201) is fixedly installed with the electric motor (1202) through a support, and the output end of the electric motor (1202) is fixedly installed with the threaded shaft (1203).
7. A variable differential pressure self-regulating ball valve according to claim 6, characterized in that: The driven mechanism (13) comprises a gear (1301), an axle bracket (1302) and a pull rod (1303); the gear (1301) is fixedly installed at the top of the first fixed rod (6), the top of the gear (1301) is fixedly installed with the second fixed rod (7), the second fixed rod (7) penetrates the upper shell (2) and is rotatably installed with the upper shell (2), the top end of the second fixed rod (7) is fixedly installed with the handle (4), the axle bracket (1302) is slidingly installed at the bottom of the inner wall of the upper shell (2), the electric motor (1202) is located in the inner wall of the axle bracket (1302) and is rotatably installed with the axle bracket (1302), one side of the axle bracket (1302) is fixedly installed with the pull rod (1303), the pull rod (1303) penetrates to the outer side of the upper shell (2), the pull rod (1303) is movably installed with the upper shell (2), and the gear (1301) is engaged with the threaded shaft (1203).