Valve with leakage alarm function

Abstract

The utility model provides a valve with a leakage alarm function, which comprises a dynamic balance monitor, two dynamic piston cavities of the dynamic balance monitor are respectively communicated with valve bodies of corresponding valves through dynamic conveying pipes, and a plurality of valves are arranged on a conveying pipeline; the dynamic piston cavities are arranged in the shell and are communicated with each other through the communication cavity, a piston head is movably and hermetically arranged in each dynamic piston cavity, and the alarm trigger sensor is arranged above one piston head and at the top of one dynamic piston cavity; the dynamic balance monitor accurately monitors the pressure difference of a piston cavity, instantly captures valve leakage, rapidly triggers an alarm, and achieves seamless monitoring and rapid response. Manual inspection dependence is reduced, efficiency is improved, and labor intensity is reduced. The air pump, the piston head and the limiting ring are precisely matched to ensure accurate and reliable monitoring. And the design is flexible, valves of multiple specifications are adapted, the layout of the piston cavity is dynamically adjusted, and high expandability and adaptability are shown.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a valve with a leakage alarm. Background Art

[0002] In existing fluid delivery systems, valve leakage detection usually relies on manual inspections or regular inspections. The manual inspection and regular inspection methods are limited by the availability and work efficiency of personnel, and often cannot achieve continuous monitoring of the valve status. This means that any leakage that occurs during the period between two inspections may be ignored and not discovered until the next inspection, thus delaying the best time for timely treatment. In addition, for high-pressure, high-temperature or corrosive liquids, leakage may expand rapidly, causing more serious consequences.

[0003] In addition to direct labor costs, frequent manual inspections and regular testing may also involve additional equipment maintenance, consumables, and possible downtime, all of which increase the overall operating cost of the system. At the same time, the waste of resources (such as water, chemicals, etc.) caused by leaks and the resources invested in dealing with leaks (such as cleanup costs, repair costs, etc.) further increase the cost burden.

[0004] Therefore, it is very necessary to invent a valve with a leakage alarm. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a valve with leakage alarm, including a dynamic balance monitor, a dynamic delivery pipe and a valve, the dynamic piston chamber of the dynamic balance monitor is connected with the valve body of the corresponding valve through the dynamic delivery pipe, and several valves are installed on the delivery pipe; wherein the dynamic balance monitor includes an outer shell, a connecting chamber, a piston head and an alarm trigger sensor, the dynamic piston chamber is arranged inside the outer shell, and is connected to each other through the connecting chamber, a piston head is movably sealed inside each dynamic piston chamber, and the alarm trigger sensor is installed above one of the piston heads and on the top of one of the dynamic piston chambers.

[0006] Preferably, the dynamic balance monitor further comprises a limit ring and an air pump, and a limit ring is fixedly installed in each of the dynamic piston cavities; an output end of the air pump fixedly installed outside the housing is connected to the connecting cavity.

[0007] Preferably, the limiting ring is located below the piston head, and the limiting ring is used to limit the movement of the piston head.

[0008] Preferably, an alarm and an automatic exhaust valve are fixedly mounted on the upper part of the exterior of the housing, respectively; an alarm trigger sensor is connected to the alarm and controls the closing of a valve.

[0009] Preferably, the automatic exhaust valve is connected to one of the dynamic piston chambers, and the automatic exhaust valve is used to discharge a part of the high-pressure gas injected into the dynamic piston chamber by the air pump.

[0010] Preferably, the piston head located below the alarm trigger sensor can activate the alarm trigger sensor to operate.

[0011] Preferably, at least two of the valves are provided. When the pressure of the liquid flowing through one of the valves is significantly higher than that flowing through another subsequent valve or the area after leakage occurs, the alarm trigger sensor is activated.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The dynamic balance monitor of the utility model can instantaneously capture the abnormal pressure caused by valve leakage and immediately trigger an alarm by accurately monitoring the pressure difference between two dynamic piston chambers, realizing seamless monitoring and rapid response to leakage problems. This mechanism not only significantly reduces the dependence on manual inspections, but also greatly improves work efficiency and reduces manual labor intensity. At the same time, the precise cooperation of the air pump injecting high-pressure gas with the piston head and the limit ring ensures the accuracy and reliability of the monitoring process. In addition, the device is flexibly designed, can adapt to various specifications and types of valves, and the number and layout of the dynamic piston chambers can be flexibly adjusted according to actual needs, showing strong scalability and adaptability, providing a solid guarantee for the safe and stable operation of the fluid delivery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structural schematic diagram of the utility model.

[0015] Figure 2 is the structural schematic diagram of the dynamic balance monitor of the utility model.

[0016] Figure 3 is the semi-sectional structural schematic diagram of the dynamic balance monitor of the utility model.

[0017] In the figure:

[0018] Dynamic balance monitor 1, housing 11, communication chamber 13, limit ring 14, piston head 15, alarm trigger sensor 16, air pump 17, dynamic delivery pipe 2, valve 3, alarm 4, automatic exhaust valve 5. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the embodiments, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] As shown in the attached Figure 1 to the attached Figure 3 figure:

[0022] A valve with leakage alarm provided by the present utility model includes a dynamic balance monitor 1, a dynamic delivery pipe 2 and a valve 3. The two dynamic piston chambers 12 of the dynamic balance monitor 1 are respectively communicated with the valve body of the corresponding valve 3 through the dynamic delivery pipe 2. A plurality of the valves 3 are installed on the delivery pipeline. Among them, the dynamic balance monitor 1 includes a housing 11, a communication chamber 13, a piston head 15 and an alarm trigger sensor 16. The two dynamic piston chambers 12 are arranged inside the housing 11 and communicated with each other through the communication chamber 13. A piston head 15 is movably and sealingly installed inside each dynamic piston chamber 12. The alarm trigger sensor 16 is installed above one of the piston heads 15 and at the top of one of the dynamic piston chambers 12.

[0023] Furthermore, the design of the dynamic balance monitor 1 has been further enhanced. By installing a limit ring 14 in each dynamic piston chamber 12, the movement range of the piston head 15 is effectively restricted, ensuring its stability and reliability during operation. At the same time, an air pump 17 fixedly installed outside the housing 11 is directly connected to the communication chamber 13, providing a stable high-pressure gas source for the dynamic piston chamber, which is the key to achieving accurate pressure monitoring.

[0024] Furthermore, the limit ring 14 is cleverly arranged below the piston head 15, which not only limits the maximum stroke of the piston head 15 but also ensures its smooth movement when subjected to pressure changes. This design helps to more accurately reflect the leakage situation of the valve 3 because any minor leakage will cause a slight change in the position of the piston head 15, which will then be captured by the monitoring system.

[0025] Furthermore, to improve the safety and usability of the system, an alarm 4 and an automatic exhaust valve 5 are installed above the outside of the housing 11. The alarm trigger sensor 16 is directly connected to the alarm 4. Once abnormal pressure is detected, the alarm will be immediately triggered to alert the operator.

[0026] Furthermore, the automatic exhaust valve 5 is connected to one of the dynamic piston chambers 12. Its main function is to release high-pressure gas when needed to maintain the stable operation state of the system. This design not only helps to extend the service life of the equipment but also improves the overall safety and reliability of the system. At the same time, it maintains the dynamic balance of the system and reduces potential risks caused by long-term high pressure.

[0027] Furthermore, the piston head 15 located below the alarm trigger sensor 16 is a key triggering element. When the liquid first flows through the first valve 3, if its pressure is significantly higher than that flowing through the subsequent valves 3 or the area after leakage, this pressure difference will push the piston head 15 upward until the alarm trigger sensor 16 is triggered. Once the sensor is activated, the alarm 4 will be immediately started and may control the closing of the first valve 3 or the valve 3 in the leakage area to prevent further expansion of the leakage.

[0028] Furthermore, this device supports the setting of at least two valves 3, which means that the states of multiple valves 3 can be monitored simultaneously. By comparing the pressure differences between different valves 3, the system can more accurately determine the location and degree of leakage, and thus take more effective countermeasures. This multi-valve 3 monitoring ability greatly improves the practicality and application scope of the system.

[0029] The working principle is as follows: First, system initialization and high-pressure gas injection:

[0030] When the system starts running, the dynamic balance monitor 1 first enters the initialization state. At this time, the air pump 17 fixedly installed outside the housing 11 starts to work, and injects high-pressure gas into the two dynamic piston chambers 12 through the communication cavity 13. These high-pressure gases push the two piston heads 15 to their respective initial positions in the dynamic piston chambers 12, that is, to the positions where the limit rings 14 are located, and maintain a certain pressure balance.

[0031] Then, pressure monitoring and leakage detection:

[0032] Liquid begins to flow through the valve 3 installed on the conveying pipeline. When the liquid has flowed through all the valves 3, the injection of high-pressure gas stops, and the excess high-pressure gas is discharged through the automatic exhaust valve 5 to meet the subsequent movement of the piston head 15. Assume that the leakage conditions and relationships of the first and second valves 3 are of concern (but the system is also applicable to monitoring subsequent valves). When the liquid flows normally through the first and second valves 3, since the valves 3 are in the normal open state, the pressure difference of the liquid before and after the two valves 3 remains within the normal range. At this time, the pressures in the two dynamic piston chambers 12 also remain relatively balanced, the position of the piston head 15 is stable, and the alarm trigger sensor 16 is not activated.

[0033] If the second valve 3 leaks, the pressure before and after the leakage point will change. Specifically, the pressure before the leakage point will be higher than the pressure after the leakage point (or the low-pressure area caused by the leakage). This pressure difference will be transmitted to the dynamic balance monitor 1 through the dynamic conveying pipe 2, affecting the pressure in the dynamic piston chamber 12 connected thereto.

[0034] The pressure difference caused by the leakage will cause the movement mode of the piston head 15 in the dynamic piston chamber 12. The piston head 15 in the dynamic piston chamber 12 with a higher pressure moves upward, and conversely, the piston head 15 in the dynamic piston chamber 12 with a lower pressure moves downward. Due to the limitation of the limit ring 14, the rising (or falling) amplitude of the piston head 15 is limited, but it is sufficient to trigger the alarm trigger sensor 16.

[0035] Next, alarm trigger and emergency response:

[0036] Once the alarm trigger sensor 16 is activated, it will immediately send a signal to the alarm 4 to start an alarm sound or light signal to alert the operator. At the same time, according to the system design, the alarm trigger sensor 16 may also send a signal to the control system to automatically close the leaking valve 3 or take other emergency measures, such as closing the upstream valve, starting the standby system, etc., to prevent the further expansion of the leakage.

[0037] During this process, the automatic exhaust valve 5 also plays an important role. When the system detects abnormal pressure and triggers an alarm, the automatic exhaust valve 5 may automatically open according to preset conditions, releasing some high-pressure gas to maintain the dynamic balance of the system and reducing potential risks caused by long-term high pressure.

[0038] Finally, system recovery and subsequent processing:

[0039] The operator takes corresponding measures in a timely manner to handle the leakage problem according to the alarm prompt and the on-site situation. Once the leakage is controlled, the system pressure will gradually return to normal. At this time, the air pump 17 may start again to re-inject high-pressure gas into the dynamic piston cavity, restoring the system to its initial monitoring state and preparing for the next round of pressure monitoring and leakage detection.

[0040] Any technical solution using the technical solution described in the present utility model, or any technical solution designed by those skilled in the art inspired by the technical solution of the present utility model and achieving the above technical effects, shall fall within the protection scope of the present utility model.

Claims

1. A valve with a leakage alarm, characterized in that: The invention comprises a dynamic balance monitor (1), a dynamic delivery pipe (2) and a valve (3), wherein the dynamic piston chamber (12) of the dynamic balance monitor (1) is respectively connected to the valve body of the corresponding valve (3) through the dynamic delivery pipe (2), and a plurality of the valves (3) are installed on the delivery pipe; wherein the dynamic balance monitor (1) comprises a housing (11), a connecting chamber (13), a piston head (15) and an alarm triggering sensor (16), wherein the dynamic piston chamber (12) is arranged inside the housing (11) and is connected to each other through the connecting chamber (13), wherein a piston head (15) is movably and hermetically installed inside each dynamic piston chamber (12), and the alarm triggering sensor (16) is installed above one of the piston heads (15) and at the top of one of the dynamic piston chambers (12).

2. A valve with leakage alarm as claimed in claim 1, characterized in that: The dynamic balance monitor (1) further comprises a limit ring (14) and an air pump (17), wherein a limit ring (14) is fixedly installed in each dynamic piston cavity (12); and an output end of the air pump (17) fixedly installed outside the housing (11) is connected to the communication cavity (13).

3. A valve with leakage alarm as claimed in claim 2, characterized in that: The limiting ring (14) is located below the piston head (15), and the limiting ring (14) is used to limit the movement of the piston head (15).

4. A valve with leakage alarm as claimed in claim 2, characterized in that: An alarm (4) and an automatic exhaust valve (5) are fixedly mounted on the upper portion of the outer shell (11), and an alarm trigger sensor (16) is connected to the alarm (4) and controls a valve (3).

5. A valve with leakage alarm as claimed in claim 4, characterized in that: The automatic exhaust valve (5) is in communication with one of the dynamic piston chambers (12), and the automatic exhaust valve (5) is used to exhaust part of the high-pressure gas injected into the dynamic piston chamber (12) by the air pump (17).

6. A valve with leakage alarm as claimed in claim 4, characterized in that: The piston head (15) located below the alarm triggering sensor (16) is capable of activating and triggering the alarm triggering sensor (16).

7. A valve with leakage alarm as claimed in claim 6, characterized in that: At least two valves (3) are provided, and when the pressure of the liquid when flowing through one of the valves (3) is significantly higher than that when flowing through another subsequent valve (3) or an area after a leak occurs, the alarm trigger sensor (16) is activated.

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