Integrated leakage monitoring device with high applicability
By integrating a leak monitoring device and combining multiple monitoring methods, the reliability and operability issues of high-voltage equipment leak monitoring have been solved, achieving efficient and reliable leak identification and monitoring.
Patent Information
- Application Number
- CN202511724600.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-03-17
AI Technical Summary
Existing methods for monitoring leaks in high-voltage equipment have a high false alarm rate, cannot monitor leaks in real time, are inconvenient to operate, and are difficult to reliably monitor in locations far from personnel.
An integrated leak monitoring device is designed, which uses a metal connecting pipe, a flexible connecting pipe assembly, a four-way connector, a shut-off valve, a threaded diaphragm pressure controller, and a pressure gauge. It integrates three leak monitoring methods: pressure gauge display, electrical signal conversion by the threaded diaphragm pressure controller, and shut-off valve on/off detection, to achieve multiple redundant monitoring.
It improves the reliability and applicability of leak monitoring, enabling rapid and accurate identification of leaks in various environments, avoiding the limitations of a single monitoring method, and is easy to operate and maintain.
Smart Images

Figure CN121678070A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of high-voltage equipment condition monitoring technology, specifically to a highly applicable integrated leak monitoring device. Background Technology
[0002] High-voltage equipment has high requirements for sealing performance and often adopts a multi-seal structure. To ensure the safety and reliability of the equipment, it is necessary to be able to provide timely warnings and take corresponding measures when internal leakage occurs. Due to the limitations of the structural type, internal leakage cannot be directly observed from the outside. Therefore, timely and reliable monitoring of leakage inside the equipment is essential.
[0003] Single-methods monitoring of electrical signal leakage, pressure gauge monitoring, and flow monitoring all have limitations. For example, electrical signal leakage monitoring has a high false alarm rate, pressure gauges cannot detect dripping leaks, and valve flow monitoring requires frequent opening for inspection. High-pressure equipment is generally located in places inconvenient for personnel to observe and operate, and personnel should stay as far away from operating high-pressure equipment as possible. Therefore, to address the above problems, there is an urgent need to design a highly adaptable and reliable device that can monitor leakage conditions in multiple ways to ensure equipment safety. Summary of the Invention
[0004] This invention provides a versatile integrated leak monitoring device to ensure equipment safety.
[0005] In a first aspect of the present invention, a highly adaptable integrated leak monitoring device is provided, comprising: a metal pipe, an outer nut, a flexible pipe assembly, a four-way connector, a shut-off valve, a threaded diaphragm pressure controller, a pressure gauge, and a sealing gasket.
[0006] The metal connector is used to connect the device under test (DUT) and the flexible connector assembly. The end of the metal connector that connects to the DUT has a threaded joint, and the end that connects to the flexible connector assembly has an outer nut and a sealing washer.
[0007] The flexible conduit assembly is used to connect a metal conduit and a four-way connector. The metal conduit end has a threaded connector, and the four-way connector end has an outer nut and a sealing washer.
[0008] Four-way connectors are used to connect flexible hose assemblies, threaded diaphragm pressure controllers, shut-off valves, and pressure gauges;
[0009] The threaded diaphragm pressure controller is connected to a four-way connector at one end and to a pressure monitoring electrical interface at the other end.
[0010] One end of the shut-off valve is connected to a four-way connector, and the other end is a drain outlet. The shut-off valve also has an air vent.
[0011] The pressure gauge is directly connected to the four-way connector.
[0012] In some alternative embodiments of the present invention, the four-way connector has one inlet end connected to a flexible conduit assembly, and three outlet ends connected to a pressure gauge, a threaded diaphragm pressure controller, and a shut-off valve, respectively.
[0013] In some optional embodiments of the present invention, the joints of the metal fitting, the flexible fitting assembly, and the four-way connector are all threaded.
[0014] In some alternative embodiments of the present invention, the metal connector used to connect the device under test adopts a straight pipe welded threaded joint structure.
[0015] In some alternative embodiments of the invention, the flexible hose assembly has a threaded connector at the metal hose end.
[0016] In some optional embodiments of the present invention, the connection method between the four-way connector and the flexible pipe assembly, the threaded diaphragm pressure controller, the shut-off valve and the pressure gauge is threaded connection.
[0017] In some alternative embodiments of the present invention, both ends of the flexible pipe assembly adopt a connection form of threaded joint, outer nut and sealing gasket.
[0018] In some optional embodiments of the present invention, the four-way connector integrates three different leakage detection methods;
[0019] The first method is to directly display the pressure in the chamber using a pressure gauge;
[0020] The second method is to convert the pressure signal into an electrical signal using a threaded diaphragm pressure controller.
[0021] The third method is to detect whether liquid is flowing out by switching on and off a shut-off valve. All three methods can work simultaneously or serve as backups for each other.
[0022] The beneficial effects provided by this invention are:
[0023] The widely applicable integrated leak monitoring device provided in this invention mainly consists of three sections: a metal connecting pipe, a flexible connecting pipe assembly, and a four-way connector. The device is equipped with a four-way connector, with one inlet end connected to the flexible connecting pipe assembly and three outlet ends connected to a pressure gauge, a threaded diaphragm pressure controller, and a shut-off valve, respectively. The four-way connector integrates three different leak monitoring methods: first, it directly displays the pressure reading on the pressure gauge; second, it converts the pressure signal into an electrical signal through the threaded diaphragm pressure controller; and third, it detects whether liquid is flowing out by switching the shut-off valve on and off. These three methods can work simultaneously or serve as backups for each other. This structure significantly improves the reliability of leak monitoring through multiple and different monitoring methods and is compatible with various monitoring and display methods, avoiding the drawbacks of a single monitoring method while increasing system redundancy. All connectors in the three sections use threaded connections, which are reliable, widely applicable, easy to operate, and convenient for maintenance and replacement. The metal connector used to connect to the device under test (DUT) adopts a straight pipe welded threaded joint structure. The end connecting to the flexible connector assembly has an outer nut and a sealing washer. The flexible connector assembly has a connecting threaded joint at the metal connector end, and an outer nut and a sealing washer at the four-way connector end. The four-way connector is connected to the flexible connector assembly, threaded diaphragm pressure controller, shut-off valve, and pressure gauge via threaded connections. This connection method ensures both connection reliability and improved interface adaptability, and can be used to connect various types of DUTs or systems with threaded holes. The flexible connector assembly connects the two ends of the rigid metal structure, and the intermediate flexible connector can be replaced or adjusted in a timely manner according to different operating environments. The flexible connector assembly serves two purposes: vibration reduction and isolation, and the four-way connector can be adjusted to a suitable and safe position by adjusting the flexible connector, facilitating operation and observation. This method is characterized by convenient operation and strong adaptability.
[0024] Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0025] Figure 1 A two-dimensional cross-sectional view of an integrated leak monitoring device with strong applicability provided in the embodiments of the present invention.
[0026] Figure label:
[0027] 1-Metal fitting, 2-Outer nut, 3-Flexible fitting assembly, 4-Four-way connector, 5-Stop valve, 6-Threaded diaphragm pressure controller, 7-Pressure gauge, 8-Sealing gasket. Detailed Implementation
[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0029] like Figure 1 As shown in the embodiment of the present invention, a highly adaptable integrated leak monitoring device is provided. The integrated leak monitoring device comprises a metal connector 1, an outer nut 2, a flexible connector assembly 3, a four-way connector 4, a shut-off valve 5, a threaded diaphragm pressure controller 6, a pressure gauge 7, and a sealing gasket 8. One end of the metal connector 1 is connected to the flexible connector assembly 3 via the outer nut 2, and the other end is directly connected to the measuring device. The four-way connector 4 is connected to the flexible connector assembly 3, the shut-off valve 5, the threaded diaphragm pressure controller 6, and the pressure gauge 7 respectively. The other end of the shut-off valve 5 is a water discharge outlet and has its own vent hole. The other end of the threaded diaphragm pressure controller 6 is a pressure monitoring electrical interface. This invention features high adaptability, high reliability, and a simple structure; it can realize various forms of leak monitoring functions, has the ability to quickly and accurately identify the existence of leaks, and has high reliability in use.
[0030] The working principle of this invention is as follows: Metal connector 1 connects the device under test and flexible connector assembly 3. The end of metal connector 1 connected to the device under test has a threaded connector for sealing and fixing, and can be directly connected to the threaded hole of the device under test to drain leaked water from inside the device. The end connected to the flexible connector assembly has an outer nut 2 and a sealing washer 8, which connect to the threaded connector of the flexible connector assembly 3. Flexible connector assembly 3 connects metal connector 1 and four-way connector 4. The end of metal connector 1 has a threaded connector, and the end of four-way connector 4 has an outer nut 2 and a sealing washer 8, allowing for easy connection or disassembly of flexible connector assembly 3. This greatly improves the applicability and maintainability of the flexible connector assembly. Flexible connector assembly 3 not only drains leaked water but also provides some vibration isolation and adjusts the position of the device display. The four-way connector 4 is used to connect the flexible conduit assembly 3, the threaded diaphragm pressure controller 6, the shut-off valve 5, and the pressure gauge 7. After receiving leaked water through the flexible conduit assembly 3, the chamber of the four-way connector 4 reflects the leakage in three ways: one end of the threaded diaphragm pressure controller 6 is connected to the four-way connector 4, and the other end can be connected to a pressure monitoring electrical interface to display the pressure information in the chamber to reflect the equipment leakage status, which is sensitive and convenient; one end of the shut-off valve 5 is connected to the four-way connector 4, and the other end is a drain outlet, and it also has a vent hole, which can monitor the equipment leakage status by draining water, which is stable and reliable; the pressure gauge 7 is directly connected to the four-way connector 4, and can directly display the internal pressure of the device to monitor the equipment leakage status, which is simple and intuitive.
[0031] The device structure described above consists of three main sections: a metal connecting pipe, a flexible connecting pipe assembly, and a four-way connector. The device is equipped with a four-way connector, with one inlet end connected to the flexible connecting pipe assembly and three outlet ends connected to a pressure gauge, a threaded diaphragm pressure controller, and a shut-off valve, respectively. The four-way connector integrates three different leakage detection methods: first, it directly displays the pressure on the pressure gauge; second, it converts the pressure signal into an electrical signal through the threaded diaphragm pressure controller; and third, it detects whether liquid is flowing out by opening and closing the shut-off valve. These three methods can operate simultaneously or serve as backups for each other. This structure significantly improves the reliability of leakage detection through multiple and different monitoring methods, and is compatible with various monitoring and display methods, avoiding the drawbacks of a single monitoring method while increasing system redundancy.
[0032] All joints in the three main sections utilize threaded connections, a method known for its reliability, versatility, ease of operation, and convenient maintenance and replacement. The metal connector used to connect to the device under test employs a straight pipe welded threaded joint structure. The end connecting to the flexible connector assembly is equipped with an outer nut and a sealing washer. The flexible connector assembly's metal connector end features a connecting threaded joint, while the end connecting to the four-way connector also has an outer nut and a sealing washer. The four-way connector connects to the flexible connector assembly, threaded diaphragm pressure controller, shut-off valve, and pressure gauge using threaded connections. This connection method ensures both reliability and improved interface adaptability, allowing connection to various types of device under test or systems with threaded holes. The flexible connector assembly connects the two ends of the rigid metal structure. The intermediate flexible connector can be replaced or adjusted promptly according to different operating environments. The flexible connector assembly serves two purposes: vibration damping and allowing the four-way connector to be adjusted to a suitable and safe position for easy operation and observation. This method is characterized by its ease of operation and high adaptability.
[0033] It should be understood that in the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this description, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples described in this specification, as well as some features of different embodiments or examples.
[0034] Of course, those skilled in the art can make various corresponding changes and modifications based on the present invention without departing from its spirit and essence, but such changes and modifications should all fall within the protection scope of the claims of the present invention.
Claims
1. A highly adaptable integrated leak monitoring device, characterized in that, Comprise: Metal pipe, nut, flexible pipe assembly, four-way joint, stop valve, threaded diaphragm pressure controller, pressure gauge, sealing ring; Metal pipe is used to connect the measured device and flexible pipe assembly, the metal pipe is connected with the measured device end with a threaded joint, and the flexible pipe assembly end with a nut and a sealing ring; Flexible pipe assembly is used to connect metal pipe and four-way joint, the metal pipe end with a threaded joint, and the four-way joint end with a nut and a sealing ring; Four-way joint is used to connect flexible pipe assembly, threaded diaphragm pressure controller, stop valve and pressure gauge; Threaded diaphragm pressure controller one end connects four-way joint, the other end connects pressure monitoring electrical interface; Stop valve one end connects four-way joint, the other end is a water outlet, and the stop valve has a gas hole; Pressure gauge is directly connected with four-way joint.
2. The robust integrated leak monitoring device of claim 1, wherein, Four-way joint, one inlet end connects flexible pipe assembly, three outlet ends respectively connect pressure gauge, threaded diaphragm pressure controller and stop valve.
3. The robust integrated leak monitoring device of claim 1, wherein, The joints of metal pipe, flexible pipe assembly and four-way joint are all connected by threaded connection.
4. The robust integrated leak monitoring device of claim 1, wherein, The structure of metal pipe used to connect the interface of measured device is straight pipe welded threaded joint.
5. The robust integrated leak monitoring device of claim 1, wherein, Flexible pipe assembly end with a threaded joint connects metal pipe.
6. The robust integrated leak monitoring device of claim 1, wherein, The connection mode of four-way joint with flexible pipe assembly, threaded diaphragm pressure controller, stop valve and pressure gauge is threaded connection.
7. The robust integrated leak monitoring device of claim 1, wherein, Both ends of flexible pipe assembly use threaded joint, nut and sealing ring connection form.
8. The robust integrated leak monitoring device of claim 1, wherein, Four-way joint integrates three different leakage monitoring methods; The first is to directly display the chamber pressure through the pressure gauge; The second is to convert the pressure signal into an electrical signal through the threaded diaphragm pressure controller; The third is to detect whether there is liquid outflow through the stop valve switch, and the three methods work simultaneously or as a backup for each other.
