Stop mechanism of a ceramic ball valve
The stop mechanism for ceramic ball valves uses a control module, spring, and tension sensor to prevent damage by stopping the actuator when excessive force is needed, addressing adhesion and safety issues in ceramic ball valves used in limestone or gypsum slurries.
Patent Information
- Application Number
- JP2025001743U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2024-06-21
- Filing Date
- 2025-05-30
- Publication Date
- 2025-07-28
- Estimated Expiration
- 2035-05-30
AI Technical Summary
Ceramic ball valves used in limestone or gypsum slurries face issues with valve body and seat adhesion due to solidified slurry, leading to potential damage and safety hazards when forced closure occurs, without timely alarms or preventive measures.
A stop mechanism for ceramic ball valves incorporating a control module, spring, and tension sensor to monitor spring tension, which stops the actuator when excessive force is required, and includes a cleaning structure and camera for real-time monitoring and cleaning.
Prevents damage to the ball valve by stopping operation when stuck, reduces maintenance costs, and enhances safety and automation by detecting and addressing adhesion issues promptly.
Smart Images
Figure 0003252180000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of limestone slurry conveying devices, and particularly to a stop mechanism for ceramic ball valves.
Background Art
[0002] A ball valve is a valve in which a ball body is driven by a valve stem and rotates about its axis. Ball valves are mainly used to block, distribute, and change the direction of the flow of a medium in a pipeline. To close tightly, it only needs to be rotated 90 degrees and apply a very small torque, and the ball valve is optimal for use as a switch or shut-off valve.
[0003] Currently, the valve body of a ceramic ball valve is directly connected to an actuator. When an operator remotely operates it, since the actual situation of the ball valve is not known, it often happens that it is forced to be opened or closed. However, in the case of a ball valve used in a pipeline for limestone slurry or gypsum slurry, the valve body and the valve seat are adhered by the solidified slurry. At this point, the operator cannot know the state of the ball valve, and if it is forced to close, the valve body may be damaged, and the ball valve may be damaged, and the fallen ceramic fragments may also pose a potential danger to the operation of downstream equipment.
Summary of the Invention
Problems to be Solved by the Invention
[0004] The object of the present invention is to provide a stop mechanism for a ceramic ball valve in order to overcome the drawbacks of the prior art, such as the valve body and the valve seat being adhered by the solidified slurry, the valve body being damaged when forced to close, the ball valve being damaged, unable to give a timely alarm, and having low safety.
[0005] The object of the present invention can be achieved by the following technical solutions.
[0006] In this solution, a stop mechanism for a ceramic ball valve including a ball valve and an execution structure for rotationally driving the ball valve is provided. The stop mechanism further includes a control module, a spring, and a tension sensor. The control module is connected to the execution structure. An integrated ball valve connecting rod is provided on the ball valve. The execution structure includes a sleeve. The spring is fitted onto the ball valve connecting rod, with one end connected to the ball valve connecting rod and the other end connected to the sleeve. The sleeve is fitted outside the spring, and the tension sensor is fixed inside the sleeve and connected to the spring to monitor the tension of the spring.
[0007] Preferably, the spring is a torsion spring, fixed to the ball valve connecting rod, and the fulcrum of the torsion spring is fixed to the inner wall of the sleeve.
[0008] Preferably, a hook is provided on the inner wall of the sleeve, and the spring is connected to the hook.
[0009] Preferably, the number of springs is plural, and each spring is provided at equal intervals on the ball valve connecting rod.
[0010] Preferably, the control module is also connected to a cleaning structure for spray-cleaning the valve body.
[0011] Preferably, the control module is also connected to a camera for acquiring a real-time state image of the valve body and transmitting it to a remote control center.
[0012] Compared with the prior art, the present invention has the following advantages.
[0013] (1) In this solution, when the brake structure operates, the sleeve and the spring rotate the ball valve connecting rod, switching the opening and closing state of the ball valve, and the tension sensor detects the tension of the spring. When the ball valve and the valve seat are fixed due to the solidification of the lime slurry, a greater force is required to rotate the ball valve because it is fixed. During the rotation of the sleeve, the tension of the spring increases, and the tension sensor sends the real-time detection result to the control module. When the tension is too large, the actuator is controlled to stop operating. By providing a spring for force transmission transition between the actuator and the ball valve connecting rod, when the valve body and the valve seat are fixed, the deformation tension of the spring increases, and the tension sensor feeds back the real-time tension of the spring to the control module. When the tension is too large, the control module controls the actuator to stop operating, thereby protecting the valve body, avoiding the situation where the ball valve is damaged and ceramic pieces are mixed into the slurry, reducing the cost loss caused by damage, saving the maintenance cost, and improving the automation and safety of the device. (2) In this solution, the tension of the spring detected by the tension sensor is sent to the control module in real time. The control module compares the detection result with a preset threshold value, determines whether the valve body is fixed according to the tension state of the spring, controls the cleaning structure to clean the valve body, and removes the solidified slurry in the ball valve. Thereby, damage to the ball valve caused by forced closing is prevented, the failure of the ball valve is solved in a timely manner, and the impact of the failure of the ball valve on the production rhythm is reduced.
Brief Description of the Drawings
[0014]
Figure 1
Figure 2
Description of the Reference Numerals
[0015] 1. Ball valve, 2. Actuator, 3. Spring, 4. Tension sensor, 11. Ball valve connecting rod, 21. Sleeve.
Embodiments for Carrying out the Invention
[0016] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. The components of the embodiments of the present invention generally described and illustrated in the accompanying drawings may be arranged and designed in various different configurations.
[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather to represent selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts are included within the protection scope of the present invention.
[0018] It should be noted that in the following figures, the same reference numerals and characters represent the same items. Once an item is defined in one figure, it will not require further definition and explanation in subsequent figures.
[0019] In addition, in the description of the present invention, the directions and positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the directions and positional relationships shown in the drawings, or the directions and positional relationships in which the product of the present invention is usually placed when in use. This is only for the purpose of explaining the present invention and simplifying the description, and does not indicate or imply that the devices or elements mentioned must have a specific orientation and must be constructed and operated in a specific orientation. Therefore, this cannot be understood as a limitation of the present invention.
[0020] Note that the terms "first" and "second" are used only for convenience of description and should not be understood as indicating or implying relative importance or implicitly indicating the amount of technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality" means two or more unless otherwise clearly limited.
[0021] Also, terms such as "horizontal" and "vertical" do not mean that the member needs to be completely horizontal or suspended, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, and it may be slightly inclined.
Embodiment
[0022] As shown in FIGS. 1 and 2, in this embodiment, a stop mechanism for a ceramic ball valve including a ball valve 1 and an execution structure 2 for rotationally driving the ball valve 1 is provided. The stop mechanism further includes a control module connected to the execution structure 2, a spring 3, and a tension sensor 4. The ball valve 1 is provided with an integral ball valve connecting rod 11. The execution structure 2 includes a sleeve 21. The spring 3 is fitted onto the ball valve connecting rod 11, one end is connected to the ball valve connecting rod 11, the other end is connected to the sleeve 21. The sleeve 21 is fitted outside the spring 3. The tension sensor 4 is fixed inside the sleeve 21 and is connected to the spring 3 to monitor the tension of the spring.
[0023] The operation principle is as follows. When the brake structure 2 operates, the sleeve 21 and the spring 3 rotate the ball valve connecting rod 11, switching the opening and closing state of the ball valve, and the tension sensor 4 detects the tension of the spring. When the ball valve and the valve seat are fixed due to the solidification of the lime slurry, a greater force is required to rotate the ball valve because it is fixed. During the rotation of the sleeve 21, the tension of the spring 3 increases, and the tension sensor 4 sends the real-time detection result to the control module. When the tension is too large, the actuator 2 is controlled to stop operating.
[0024] In this solution, when the brake structure 2 operates, the sleeve 21 and the spring 3 rotate the ball valve connecting rod 11, switching the opening and closing state of the ball valve, and the tension sensor 4 detects the tension of the spring. When the ball valve and the valve seat are fixed due to the solidification of the lime slurry, a greater force is required to rotate the ball valve because it is fixed. During the rotation of the sleeve 21, the tension of the spring 3 increases, and the tension sensor 4 sends the real-time detection result to the control module. When the tension is too large, the actuator 2 is controlled to stop operating.
[0025] By providing a spring for force transmission transition between the actuator 2 and the ball valve connecting rod 11, when the valve body and the valve seat are fixed, the deformation tension of the spring 3 increases, and the tension sensor 4 feeds back the real-time tension of the spring 3 to the control module. When the tension is too large, the control module controls the actuator to stop operating, protecting the valve body, avoiding the situation where the ball valve is damaged and ceramic pieces are mixed into the slurry, reducing the cost loss due to damage, saving the maintenance cost, and improving the automation and safety of the device.
[0026] Specifically, the spring 3 is a torsion spring, which is fixed to the ball valve connecting rod 11, and the fulcrum of the torsion spring is fixed to the inner wall of the sleeve 21. A hook is provided on the inner wall of the sleeve 21, and the spring 3 is connected to the hook. The number of springs 3 is plural, and each spring is provided at equal intervals on the ball valve connecting rod 11.
[0027] The control module is also connected to a cleaning structure for spray-cleaning the valve body.
[0028] The spring rotationally drives the ball valve. When the ball valve is stuck, by stretching the spring, it prevents the valve body from being damaged by direct force. When the tension of the spring reaches the limit of the ball valve material, the electric actuator is triggered to stop operating. After spray-cleaning the ball valve and rotating it to a predetermined position, the electric actuator starts rotating again.
[0029] In a preferred embodiment, the control module is also connected to a camera for acquiring a real-time state image of the valve body and transmitting it to a remote control center. The operator can, according to the image captured by the camera, determine whether there is a fault in the ball valve and whether the stop mechanism can solve it, improving the accuracy and efficiency of dealing with the fault of the ball valve.
[0030] Since the principle of this device is simple, there is no need to limit its use to a specific fixed form. It can be applied to various types and sizes of ball valves, with a wide application range and high practicality.
[0031] Above, the preferred embodiments of the present invention have been described in detail. It should be understood by those skilled in the art that many modifications and changes can be made based on the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art through logical analysis, inference, or limited experiments based on the concept of the present invention and based on the prior art should be within the protection scope defined by the claims.
Claims
1. A stop mechanism for a ceramic ball valve, comprising a ball valve (1) and an execution structure (2) for rotationally driving the ball valve (1), wherein the stop mechanism further comprises a control module, a spring (3), and a tension sensor (4), and the control module is connected to the execution structure (2). The ball valve (1) is provided with an integral ball valve connecting rod (11), the execution structure (2) includes a sleeve (21), the spring (3) is fitted onto the ball valve connecting rod (11), one end is connected to the ball valve connecting rod (11), the other end is connected to the sleeve (21), the sleeve (21) is fitted outside the spring (3), and the tension sensor (4) is fixed inside the sleeve (21) and connected to the spring (3) to monitor the tension of the spring. A stop mechanism for a ceramic ball valve is characterized by this.
2. The spring (3) is a torsion spring, fixed to the ball valve connecting rod (11), and the fulcrum of the torsion spring is fixed to the inner wall of the sleeve (21). The stop mechanism for a ceramic ball valve according to claim 1 is characterized by this.
3. A hook is provided on the inner wall of the sleeve (21), and the spring (3) is connected to the hook. The stop mechanism for a ceramic ball valve according to claim 2 is characterized by this.
4. The number of the springs (3) is plural, and each spring is provided at equal intervals on the ball valve connecting rod (11). The stop mechanism for a ceramic ball valve according to claim 2 is characterized by this.
5. The control module is also connected to a cleaning structure for cleaning the valve body. The stop mechanism for a ceramic ball valve according to claim 1 is characterized by this.
6. The control module is also connected to a camera for acquiring a real-time state image of the valve body and transmitting it to a remote control center. The stop mechanism for a ceramic ball valve according to claim 1.