Valve with inner leakage detection and alarm functions
By setting detection and adjustment components on the outside of the valve assembly, using ultrasonic and flow sensors to determine internal leakage, and adjusting the spring force by a servo motor, the problem of difficult internal leakage detection in valves is solved, achieving high-precision internal leakage detection and timely alarm.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-14
AI Technical Summary
Existing valves lack internal leakage detection capabilities, making it difficult to determine internal leakage, especially in noisy environments, leading to detection difficulties.
The detection and adjustment components are installed outside the valve assembly, including a mounting box, electric slide rail, electric slider, ultrasonic sensor, flow sensor, and alarm. Internal leakage is determined by ultrasonic detection and flow monitoring, and the spring force is adjusted by a servo motor and magnetic structure to ensure detection accuracy and valve sealing.
It enables accurate detection and timely alarm of internal leakage in valves, improving detection accuracy and valve sealing, and reducing the possibility of internal leakage.
Smart Images
Figure CN224120751U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve technology, specifically to a valve for internal leakage detection and alarm. Background Technology
[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters of the transported medium. Valves are control components in fluid transport systems, possessing functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, or overflow pressure relief. Valves can be used to control the flow of various types of fluids, including air, water, steam, various corrosive media, slurry, oil, liquid metals, and radioactive media.
[0003] Based on the above, the inventors have discovered the following problems: current valves do not have internal leakage detection function. When power plant employees are inspecting, they can only observe the external leakage of valves by sight or hear some valves with relatively obvious internal leakage by sound. However, the internal leakage of some valves installed in relatively noisy environments cannot be determined.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a valve with internal leakage detection and alarm, in order to achieve a more practical value. Utility Model Content
[0005] The purpose of this invention is to provide a valve for internal leakage detection and alarm, so as to solve the problems mentioned in the background art.
[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0007] A valve with internal leakage detection alarm includes a valve assembly, a detection assembly, and an adjustment assembly. Both the detection assembly and the adjustment assembly are located outside the valve assembly. The detection assembly is used to detect internal leakage in the valve assembly, and the adjustment assembly is used to adjust the spring force within the valve assembly. The valve assembly includes a valve housing, and the detection assembly includes a mounting box. The mounting box is fixedly connected to the outer wall of the valve housing on the side closest to the valve housing, and an elongated groove is formed on the side of the mounting box closest to the valve housing. An electric slide rail is installed between the top and bottom ends inside the mounting box. An electric slider is slidably connected to the outside of the electric slide rail. An ultrasonic sensor is installed on one side of the electric slider, and the detection probe of the ultrasonic sensor abuts against the valve housing through the elongated groove.
[0008] Furthermore, the mounting box is arc-shaped on the side near the valve housing, and an alarm is installed on the side of the mounting box away from the valve housing. Grooves are provided on both outer sides of the mounting box.
[0009] The advantages of adopting the above-mentioned further solution are that, since the side of the mounting box near the valve body is arc-shaped, it can better fit the outer surface of the valve body, making the detection probe of the ultrasonic sensor more tightly pressed against the valve body, ensuring the accuracy of ultrasonic detection, improving the precision of internal leakage detection, and by installing an alarm, when internal leakage of the valve assembly is detected, an alarm will be sounded to facilitate the staff to discover the internal leakage situation. Since grooves are opened on both sides of the outside of the mounting box, it is convenient to install the screw and the guide rod later.
[0010] Furthermore, both the inlet and outlet ends of the valve housing are threaded with flow sensors, and a control panel is installed on one side of the outer wall of the valve housing. The flow sensors, ultrasonic sensors, and alarms are electrically connected to the control panel via wires. The valve housing is made of non-magnetic stainless steel.
[0011] The beneficial effect of adopting the above-mentioned further solution is that, since flow sensors are threadedly installed at the inlet and outlet ends of the valve body, the two flow sensors monitor the flow at the inlet and outlet ends of the valve body respectively. In conjunction with the ultrasonic sensor, it can determine whether there is internal leakage in the valve. The flow sensor, ultrasonic sensor and alarm are electrically connected to the control panel. The control panel can receive and process the data detected by the flow sensor and ultrasonic sensor. When a flow difference occurs between the inlet and outlet ends, or when the data transmitted by the ultrasonic sensor reaches the internal leakage condition, the control panel controls the alarm to sound.
[0012] Furthermore, the valve housing has square grooves on both sides of the inner wall near the water outlet, and square blocks are slidably connected inside the two square grooves. Strong magnets are installed inside the opposite sides of the two square blocks.
[0013] The beneficial effect of adopting the above-mentioned further solution is that, through the combined use of the square groove and the square block, when the electromagnet outside the valve body is energized and attracted to the strong magnet, when the hollow ring moves outside the valve body, the adjusting ring can move inside the valve body, compressing the spring and adjusting the spring force, thus avoiding the situation where the spring force cannot provide enough force to make the valve core fit tightly against the valve seat, resulting in the valve not closing tightly, thereby reducing the possibility of internal leakage.
[0014] Furthermore, an adjusting ring is installed between the two blocks, and a spring is connected to the bottom end of the adjusting ring. A valve core is connected to the end of the spring away from the adjusting ring, and through holes are opened on both sides of the outer side of the valve core.
[0015] The beneficial effect of adopting the above-mentioned further solution is that by adjusting the position of the adjusting ring, the compression degree of the spring can be changed, thereby adjusting the spring force. Since the valve core has through holes on both sides of its exterior, when the fluid enters the valve body through the inlet end, it squeezes the valve core, causing the fluid to be discharged from the outlet end through the through holes and the adjusting ring.
[0016] Furthermore, the adjusting assembly includes a screw and a guide rod, which are respectively disposed in two grooves. The two ends of the screw are connected to the inner wall of one of the grooves via bearings, and the two ends of the guide rod are fixedly connected to the inner wall of the other groove. A threaded sleeve is threaded to the outside of the screw, and a sliding sleeve is slidably connected to the outside of the guide rod. A hollow ring is installed between the threaded sleeve and the sliding sleeve. The hollow ring is disposed outside the valve housing, and an electromagnet is installed inside the hollow ring. The inner wall of the electromagnet is clearance-fitted with the outer wall of the valve housing, and the electromagnet is magnetically attracted to a strong magnet.
[0017] The beneficial effect of adopting the above-mentioned further solution is that, through the coordinated use of the screw, threaded sleeve, smooth rod and sliding sleeve, when the screw rotates, the threaded sleeve connected to its external thread rotates, and under the connection action of the threaded sleeve, sliding sleeve and hollow ring, the hollow ring moves outside the valve body, adjusting the position of the electromagnet. When the electromagnet outside the valve body is energized and attracted to the strong magnet, when the hollow ring moves outside the valve body, the adjusting ring can move inside the valve body, compressing the spring and thus adjusting the spring force.
[0018] Furthermore, the hollow ring has an opening near the mounting box, the inner wall of the opening is in clearance fit with the outer wall of the mounting box, and a servo motor is installed on one side of the top of the mounting box, the output end of the servo motor is connected to the screw for transmission.
[0019] The beneficial effect of adopting the above-mentioned further solution is that by opening an opening near the mounting box of the hollow ring, the movement of the hollow ring is not affected by the mounting box, and by installing a servo motor, the servo motor can drive the screw to rotate when it is started.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This valve with internal leakage detection and alarm, by installing an electric slide rail and an electric slider inside the mounting box, and electrically connecting the electric slide rail and the electric slider, allows the ultrasonic sensor to slide up and down along the electric slide rail inside the mounting box, adjusting the position of the ultrasonic sensor detection probe. This enables detection of different parts of the valve body, ensuring comprehensive detection of internal leakage. Simultaneously, the ultrasonic sensor detection probe abuts against the valve body through a long groove, ensuring tight contact between the detection probe and the valve body surface, reducing detection errors caused by poor contact during the detection process, and improving the accuracy of internal leakage detection. Since flow sensors are threaded at the inlet and outlet ends of the valve body, the two flow sensors monitor the flow rate at the inlet and outlet ends of the valve body respectively. Combined with the ultrasonic sensor, this determines whether internal leakage exists in the valve. The flow sensor, ultrasonic sensor, and alarm are electrically connected to the control panel. The control panel can receive and process the data detected by the flow sensor and ultrasonic sensor. When a flow difference occurs between the inlet and outlet ends, or when the data transmitted by the ultrasonic sensor reaches the internal leakage condition, the control panel activates the alarm. Attached Figure Description
[0021] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.
[0022] Figure 1 A three-dimensional structural diagram of a valve for internal leakage detection and alarm provided by this utility model;
[0023] Figure 2 An exploded three-dimensional structural diagram of the valve assembly of a valve for internal leakage detection and alarm provided by this utility model;
[0024] Figure 3 An exploded three-dimensional structural diagram of the detection component and the regulating component of a valve for internal leakage detection and alarm provided by this utility model;
[0025] Figure 4 A top cross-sectional view of the mounting box for an internal leakage detection and alarm valve provided by this utility model;
[0026] Figure 5 This is a front cross-sectional view of the valve shell of a valve for internal leakage detection and alarm provided by this utility model.
[0027] In the diagram: 1. Valve assembly; 11. Valve body; 12. Flow sensor; 13. Square groove; 14. Block; 15. Strong magnet; 16. Adjusting ring; 17. Spring; 18. Valve core; 19. Through hole; 2. Detection assembly; 21. Mounting box; 22. Electric slide rail; 23. Electric slider; 24. Ultrasonic sensor; 25. Alarm; 3. Adjustment assembly; 31. Groove; 32. Screw; 33. Smooth rod; 34. Threaded sleeve; 35. Sliding sleeve; 36. Hollow ring; 37. Electromagnet; 38. Servo motor. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this application, unless otherwise stated, "multiple" means two or more.
[0030] Example 1
[0031] Please see Figures 1-5This utility model provides a technical solution: a valve for internal leakage detection and alarm, including a valve assembly 1, a detection assembly 2, and an adjustment assembly 3. Both the detection assembly 2 and the adjustment assembly 3 are disposed outside the valve assembly 1. The detection assembly 2 is used to detect internal leakage in the valve assembly 1, and the adjustment assembly 3 is used to adjust the elastic force of the spring 17 inside the valve assembly 1. The valve assembly 1 includes a valve shell 11, and the detection assembly 2 includes a mounting box 21. The mounting box 21 is fixedly connected to the outer wall of the valve shell 11 on the side near the valve shell 11, and a long groove is formed on the side of the mounting box 21 near the valve shell 11. An electric slide rail 22 is installed between the top and bottom ends inside the mounting box 21, and an electric slider 23 is slidably connected to the outside of the electric slide rail 22. An ultrasonic sensor 24 is installed on one side of valve body 11. The detection probe of the ultrasonic sensor 24 abuts against the valve body 11 through a long groove. An electric slide rail 22 and an electric slider 23 are installed in the mounting box 21. The electric slide rail 22 and the electric slider 23 are electrically connected, which allows the ultrasonic sensor 24 to slide up and down along the electric slide rail 22 in the mounting box 21. The position of the detection probe of the ultrasonic sensor 24 is adjusted, thereby detecting different parts of the valve body 11 and ensuring a comprehensive detection of internal leakage of the valve. At the same time, the detection probe of the ultrasonic sensor 24 abuts against the valve body 11 through the long groove, so that the detection probe is in close contact with the surface of the valve body 11, reducing detection errors caused by poor contact during the detection process and improving the accuracy of internal leakage detection.
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figures 1-5This utility model provides a technical solution: the mounting box 21 is arc-shaped on the side near the valve housing 11, and an alarm 25 is installed on the side of the mounting box 21 away from the valve housing 11. Grooves 31 are provided on both outer sides of the mounting box 21. Flow sensors 12 are threadedly connected to both the inlet and outlet ends of the valve housing 11. The flow sensors 12, ultrasonic sensors 24, and alarm 25 are electrically connected to the control panel via wires. The valve housing 11 is made of non-magnetic stainless steel. Square grooves 13 are provided on both sides of the inner wall of the valve housing 11 near the outlet end. The inner... Each valve body 11 is slidably connected to a block 14. A strong magnet 15 is installed inside the opposing sides of each block 14. An adjusting ring 16 is installed between the two blocks 14. A spring 17 is connected to the bottom end of the adjusting ring 16. A valve core 18 is connected to the end of the spring 17 furthest from the adjusting ring 16. Through holes 19 are opened on both sides of the valve core 18. Flow sensors 12 are threaded at the inlet and outlet ends of the valve body 11. The two flow sensors 12 monitor the flow rate at the inlet and outlet ends of the valve body 11, respectively. Combined with an ultrasonic sensor 24, this helps determine if there is internal leakage in the valve. The flow sensor 12, ultrasonic sensor 24, and alarm 25 are electrically connected to the control panel. The control panel can receive and process the data detected by the flow sensor 12 and ultrasonic sensor 24. When a flow difference occurs between the inlet and outlet, or when the data transmitted by the ultrasonic sensor 24 reaches the internal leakage condition, the control panel controls the alarm 25 to sound an alarm. Through the cooperation of the square groove 13 and the square block 14, when the electromagnet 37 outside the valve body 11 is energized and attracted to the strong magnet 15, the hollow ring 36 moves outside the valve body 11, which can realize the adjustment ring 16 in the valve body 11. The internal movement compresses the spring 17, thereby adjusting the spring force of the spring 17. This prevents the spring force of the spring 17 from being insufficient to provide enough force for the valve core 18 to fit tightly against the valve seat, resulting in the valve not closing properly. This reduces the possibility of internal leakage. By adjusting the position of the adjusting ring 16, the compression degree of the spring 17 can be changed, thereby adjusting the spring force of the spring 17. Since the valve core 18 has through holes 19 on both sides of its exterior, when the fluid enters the valve body 11 through the inlet end, it squeezes the valve core 18, causing the fluid to be discharged from the outlet end through the through holes 19 and the adjusting ring 16.
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Please see Figures 1-5This utility model provides a technical solution: the adjusting component 3 includes a screw 32 and a guide rod 33, which are respectively disposed in two grooves 31. The two ends of the screw 32 are connected to the inner wall of one of the grooves 31 by bearings, and the two ends of the guide rod 33 are fixedly connected to the inner wall of the other groove 31. A threaded sleeve 34 is threadedly connected to the outside of the screw 32, and a sliding sleeve 35 is slidably connected to the outside of the guide rod 33. A hollow ring 36 is installed between the threaded sleeve 34 and the sliding sleeve 35. The hollow ring 36 is disposed outside the valve housing 11, and an electromagnet 37 is installed inside the hollow ring 36. The inner wall of the electromagnet 37 is clearance-fitted with the outer wall of the valve housing 11, and the electromagnet 37 is magnetically attracted to the strong magnet 15. The hollow ring 36 has an opening near the mounting box 21, and the inner wall of the opening is clearance-fitted with the outer wall of the mounting box 21. A servo motor 38 is installed on one side of the top of the housing 21. The output end of the servo motor 38 is connected to the screw 32 for transmission. By installing the servo motor 38, when the servo motor 38 is started, it drives the screw 32 to rotate. When the screw 32 rotates, the threaded sleeve 34 connected to its external thread rotates. Under the connection of the threaded sleeve 34, the sliding sleeve 35 and the hollow ring 36, the hollow ring 36 moves outside the valve body 11, adjusting the position of the electromagnet 37. When the electromagnet 37 outside the valve body 11 is energized and attracted to the strong magnet 15, the hollow ring 36 moves outside the valve body 11, which can realize the movement of the adjusting ring 16 inside the valve body 11, compressing the spring 17 and adjusting the elastic force of the spring 17. By opening an opening near the mounting housing 21, the hollow ring 36 is not affected by the mounting housing 21 during its movement.
[0036] Specifically, the working principle of this type of valve with internal leakage detection alarm is as follows: During use, the servo motor 38 is started to drive the screw 32 to rotate. When the screw 32 rotates, the threaded sleeve 34 connected to its external thread rotates. Under the combined action of the threaded sleeve 34, the sliding sleeve 35, and the hollow ring 36, the hollow ring 36 moves outside the valve body 11, adjusting the position of the electromagnet 37. When the electromagnet 37 outside the valve body 11 is energized and attracted to the strong magnet 15, the hollow ring 36 moves outside the valve body 11, allowing the adjusting ring 16 to move within the valve body 11. The internal movement compresses the spring 17, thereby adjusting its elasticity. This prevents the spring 17 from being unable to provide sufficient force to ensure the valve core 18 fits tightly against the valve seat, which could lead to incomplete valve closure and reduce the possibility of internal leakage. When fluid enters the valve housing 11 through the inlet, it compresses the valve core 18, causing the fluid to exit through the through hole 19 and the adjusting ring 16 from the outlet. An electric slide rail 22 and an electric slider 23 are installed inside the mounting box 21, and the electric slide rail 22 and the electric slider 23 are electrically connected. The ultrasonic sensor 24 can slide up and down along the electric slide rail 22 within the mounting box 21, adjusting the position of the ultrasonic sensor 24 detection probe to detect different parts of the valve body 11, ensuring comprehensive detection of internal leakage. Simultaneously, the detection probe of the ultrasonic sensor 24 abuts against the valve body 11 through a long groove, ensuring tight contact between the detection probe and the surface of the valve body 11, reducing detection errors caused by poor contact and improving the accuracy of internal leakage detection. Since flow sensors 12 are threaded at the inlet and outlet ends of the valve body 11, the two flow sensors 12 monitor the flow rate at the inlet and outlet ends of the valve body 11 respectively, working in conjunction with the ultrasonic sensor 24 to determine whether internal leakage exists. The flow sensor 12, ultrasonic sensor 24, and alarm 25 are electrically connected to the control panel. The control panel can receive and process the data detected by the flow sensor 12 and ultrasonic sensor 24. When a flow difference occurs between the inlet and outlet ends, or when the data transmitted by the ultrasonic sensor 24 reaches the internal leakage condition, the control panel controls the alarm 25 to sound an alarm.
[0037] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. This application is not limited to the exact structures described above and illustrated in the accompanying drawings, and it should not be considered that the specific implementation of this application is limited to these descriptions. For those skilled in the art, various changes and modifications made without departing from the concept of this application should be considered to fall within the protection scope of this application.
Claims
1. A valve for internal leakage detection and alarm, characterized in that, The device includes a valve assembly (1), a detection assembly (2), and an adjustment assembly (3). Both the detection assembly (2) and the adjustment assembly (3) are located outside the valve assembly (1). The detection assembly (2) is used to detect internal leakage in the valve assembly (1), and the adjustment assembly (3) is used to adjust the spring force of the spring (17) inside the valve assembly (1). The valve assembly (1) includes a valve housing (11), and the detection assembly (2) includes a mounting box (21). The mounting box (21) is located near... One side of the valve housing (11) is fixedly connected to the outer wall of the valve housing (11), and the mounting box (21) has a long groove on the side near the valve housing (11). An electric slide rail (22) is installed between the top and bottom of the inside of the mounting box (21). An electric slider (23) is slidably connected to the outside of the electric slide rail (22). An ultrasonic sensor (24) is installed on one side of the electric slider (23). The detection probe of the ultrasonic sensor (24) abuts against the valve housing (11) through the long groove.
2. The valve for internal leakage detection and alarm according to claim 1, characterized in that, The mounting box (21) is arc-shaped on the side near the valve housing (11), and an alarm (25) is installed on the side of the mounting box (21) away from the valve housing (11). Grooves (31) are provided on both sides of the exterior of the mounting box (21).
3. The valve for internal leakage detection and alarm according to claim 2, characterized in that, The valve housing (11) is threaded with a flow sensor (12) at both the inlet and outlet ends. The valve housing (11) is made of non-magnetic stainless steel.
4. The valve for internal leakage detection and alarm according to claim 3, characterized in that, The valve housing (11) has square grooves (13) on both sides of the inner wall near the water outlet. The two square grooves (13) are slidably connected with blocks (14). Strong magnets (15) are installed inside the opposite sides of the two blocks (14).
5. The valve for internal leakage detection and alarm according to claim 4, characterized in that, An adjusting ring (16) is installed between the two blocks (14). A spring (17) is connected to the bottom end of the adjusting ring (16). A valve core (18) is connected to the end of the spring (17) away from the adjusting ring (16). Through holes (19) are provided on both sides of the outer side of the valve core (18).
6. The valve for internal leakage detection and alarm according to claim 5, characterized in that, The adjustment component (3) includes a screw (32) and a guide rod (33). The screw (32) and the guide rod (33) are respectively disposed in two grooves (31). The two ends of the screw (32) are connected to the inner wall of one of the grooves (31) by bearings. The two ends of the guide rod (33) are fixedly connected to the inner wall of the other groove (31). The screw (32) is externally threaded with a threaded sleeve (34). The guide rod (33) is externally slidably connected with a sliding sleeve (35). A hollow ring (36) is installed between the threaded sleeve (34) and the sliding sleeve (35). The hollow ring (36) is disposed outside the valve body (11). An electromagnet (37) is installed inside the hollow ring (36). The inner wall of the electromagnet (37) is clearance-fitted with the outer wall of the valve body (11). The electromagnet (37) is magnetically attracted to the strong magnet (15).
7. A valve for internal leakage detection and alarm according to claim 6, characterized in that, The hollow ring (36) has an opening near the mounting box (21), and the inner wall of the opening is in clearance fit with the outer wall of the mounting box (21). A servo motor (38) is installed on one side of the top of the mounting box (21), and the output end of the servo motor (38) is connected to the screw (32) for transmission.