A leakage monitoring alarm device

By installing a leakage monitoring and alarm device on the flange pipeline, the leakage detection line and relay are used to realize intuitive monitoring and rapid alarm of flange leakage, which solves the problems of easy sensor damage and false alarm, and realizes flexible monitoring and protection of leakage.

CN224416361UActive Publication Date: 2026-06-26CHINA CONSTR SEVENTH ENG DIVISION CORP LTD +2
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
Filing Date
2025-09-11
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing flange leakage monitoring devices suffer from poor sensor visibility, are difficult to repair when damaged, generate false alarms, and cannot provide intuitive leakage monitoring and protection, leading to waste in transportation.

Method used

Design a leakage monitoring and alarm device, including a detection box, a leakage detection line and a relay, which is directly installed on the flange pipeline. The leakage detection line senses the change in resistance and drives the alarm module and relay to perform audible and visual alarms, and controls the solenoid valve to cut off the fluid.

Benefits of technology

It enables intuitive monitoring and rapid detection of flange pipeline leaks, offers high flexibility, requires no modification to the original pipeline, is easy to disassemble and handle, and prevents fluid leaks in real time.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224416361U_ABST
    Figure CN224416361U_ABST
Patent Text Reader

Abstract

The utility model belongs to pipeline leakage detection technical field especially is a kind of leakage monitoring alarm device. Including detection box, the left and right sides of detection box are equipped with slot, and the outside of slot is equipped with pipe clamp support, arc cap is installed on pipe clamp support by bolt, the inside of detection box is installed with winding pole, and winding pole is wound with leakage detection line. The utility model is directly installed at flange pipeline, does not need to transform original pipeline, can guide leakage liquid to empty smoothly, and it is more convenient to disassemble and handle, when the liquid of flange pipeline leaks outward, drop on leakage detection line and lead to the change of loop resistance, change the resistance value into current voltage value by water leakage alarm module, to drive internal alarm circuit to sound and light alarm, and module will trigger the action of relay, for controlling the solenoid valve on pipeline to cut off fluid, real-time monitoring, fast sensing, and it has good flexibility on system layout selection.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of pipeline leakage detection technology, specifically a leakage monitoring and alarm device. Background Technology

[0002] Production involves the layout and use of oil, gas, and water pipelines and connecting flanges. Some pipeline flanges are concealed, and due to factors such as vibration, corrosion, and installation, connecting flanges may exhibit defects such as leakage and jetting. Routine inspections may not easily detect the deterioration trends and phenomena of pipeline flanges, such as small fluid leakage, long cumulative leakage time, and sudden large-volume jetting, resulting in a large amount of transportation waste.

[0003] Most current flange leakage monitoring devices use a cavity to enclose the flange, with pressure, temperature and humidity sensors arranged inside the cavity for leakage monitoring. This method has drawbacks such as unclear sensor observation, difficulty in repairing or replacing damaged sensors, and the possibility of false alarms. Furthermore, it cannot provide leakage protection while simultaneously providing intuitive leakage monitoring and alarm.

[0004] Therefore, we propose a leakage monitoring and alarm device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a leakage monitoring and alarm device, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A leakage monitoring and alarm device includes a detection box with slots on its left and right sides and a pipe clamp support on the outer side of the slots. An arc-shaped cap is installed on the pipe clamp support by bolts. A winding rod is installed inside the detection box, and a leakage detection line is wound on the winding rod. A discharge port is provided at the bottom of the detection box. A box cover is hinged to the top of the detection box, and a leakage alarm module and a relay are respectively installed on the box cover. The leakage detection line and the relay are electrically connected to the leakage alarm module.

[0010] Furthermore, a buckle is installed on the front side of the detection box, and it is fastened to the box cover by the buckle.

[0011] Furthermore, the detection box contains a flange pipe, with both ends of the flange pipe extending outward from the slot.

[0012] Furthermore, the pipe clamp support is supported at the bottom of the flange pipe, and the flange pipe clamp support and the arc-shaped cap clamp and fix it.

[0013] Furthermore, the winding rod is located at both ends of the detection box, and the leakage detection line is located below the flange pipeline.

[0014] Furthermore, the bottom surface of the detection box is conical, and the discharge port is a pagoda-shaped connector.

[0015] Furthermore, the top part of the cover is provided with an assembly groove and an assembly opening, the relay is installed in the assembly groove, and the water leakage alarm module is installed in the assembly opening.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a leakage monitoring and alarm device, which has the following beneficial effects:

[0018] This utility model can be directly installed at the flange pipeline without modifying the original pipeline. It can guide the leakage liquid to drain smoothly, and is easy to disassemble and handle. When liquid leaks out of the flange pipeline and drips onto the leakage detection line, it causes a change in the circuit resistance. The leakage alarm module converts the change in resistance into a current and voltage value, thereby driving the internal alarm circuit to perform an audible and visual alarm. At the same time, the module will trigger the relay to control the solenoid valve on the pipeline to cut off the fluid. It provides real-time monitoring and rapid detection, and has good flexibility in system layout selection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a side view of the present invention;

[0021] Figure 3 This is a schematic diagram of the installation of the pipeline in this utility model.

[0022] In the diagram: 1. Detection box; 2. Slot; 3. Pipe clamp support; 4. Arc-shaped cap; 5. Winding rod; 6. Leakage detection line; 7. Drain outlet; 8. Box cover; 9. Leakage alarm module; 10. Relay; 11. Fastener; 12. Flange pipe; 13. Assembly slot; 14. Assembly port. Detailed Implementation

[0023] 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.

[0024] Example

[0025] like Figures 1-3 As shown, an embodiment of this utility model discloses a leakage monitoring and alarm device, including a detection box 1. The detection box 1 has slots 2 on its left and right sides, and pipe clamp supports 3 are provided on the outer sides of the slots 2. Arc-shaped caps 4 are bolted to the pipe clamp supports 3. A winding rod 5 is installed inside the detection box 1, and a leakage detection line 6 is wound on the winding rod 5. A discharge port 7 is provided at the bottom of the detection box 1. A box cover 8 is hinged to the top of the detection box 1, and a leakage alarm module 9 and a relay 10 are respectively installed on the box cover 8. It is directly installed at the flange pipe 12, without the need for... Modifying the original pipeline can guide the leakage liquid to drain smoothly, and disassembly and handling are relatively convenient. When liquid leaks out of the flange pipeline 12 and drips onto the leakage detection line 6, it causes a change in the circuit resistance. The leakage alarm module 9 converts the change in resistance into a current and voltage value, thereby driving the internal alarm circuit to perform an audible and visual alarm. At the same time, the module will trigger the relay 10 to control the solenoid valve on the pipeline to cut off the fluid. It provides real-time monitoring and rapid detection, and has good flexibility in system layout selection. The leakage detection line 6 and the relay 10 are electrically connected to the leakage alarm module 9.

[0026] like Figure 1 As shown, in some embodiments, a buckle 11 is installed on the front side of the detection box 1, and is fastened to the box cover 8 through the buckle 11. The buckle 11 is a device for connecting and fixing two objects, which usually consists of two parts, generally a buckle with a protrusion and a groove part that matches it. The combination of the buckles 11 can realize the functions of fixing and connecting.

[0027] like Figure 3 As shown, in some embodiments, the detection box 1 contains a flange pipe 12, and both ends of the flange pipe 12 extend outward from the slot 2. The device is directly installed on the flange pipe 12 without modifying the original pipe, which can guide the leakage liquid to drain smoothly. Disassembly and handling are also relatively convenient.

[0028] like Figure 2As shown, in some embodiments, the pipe clamp support 3 is supported at the bottom of the flange pipe 12, and the flange pipe 12 is clamped and fixed by the pipe clamp support 3 and the arc-shaped cap 4. The upper and lower ends of the flange pipe 12 are clamped by the pipe clamp support 3 and the arc-shaped cap 4 and fixed by bolts to form a fixed clamping force, which is used to fix the device at the flange pipe 12.

[0029] like Figure 3 As shown, in some embodiments, the winding rod 5 is located at both ends of the detection box 1, and the leakage detection line 6 is located below the flange pipe 12. The winding rod 5 is a tool for winding wire, and its main function is to make the wire more orderly and regular during winding. The leakage detection line 6 (model TT1000, mainly for water detection) is a conductive induction cable with an outer layer of insulating material and two parallel conductive fibers or metal wires inside. When liquid comes into contact with the wire, the change in conductivity triggers an alarm signal. The working principle of this cable is based on the change in the conductivity of the liquid to detect leakage. The change in conductivity is monitored by electrodes, thereby triggering an alarm.

[0030] like Figure 3 As shown, in some embodiments, the bottom surface of the detection box 1 is conical, and the discharge port 7 is a pagoda connector. The main function of the pagoda connector is to connect pipes of different diameters or materials to achieve a smooth transition between pipes. Its unique conical design allows the connector to adapt to a variety of pipe diameters, providing great flexibility for the layout and connection of the pipeline system. In the early stage of pipeline leakage, the discharge port 7, designed as a pagoda connector, is used to discharge excess leakage liquid.

[0031] like Figure 3 As shown, in some embodiments, the top part of the cover 8 is provided with an assembly groove 13 and an assembly port 14. The relay 10 is installed in the assembly groove 13, and the water leakage alarm module 9 is installed in the assembly port 14. Both the assembly groove 13 and the assembly port 14 are installation structures used for the installation and fixing of the relay 10 and the water leakage alarm module 9. The working principle and characteristics of the relay 10 are that when the input quantity (such as voltage, current, temperature, etc.) reaches the specified value, it causes the controlled output circuit to be turned on or off. The water leakage alarm module 9 is model WD40 and has a sensitivity adjustment function. Users can adjust the sensitivity of the module according to actual needs.

[0032] In use, the upper and lower ends of the flange pipe 12 are clamped by the pipe clamp support 3 and the arc-shaped cap 4, and fixed with bolts to form a fixed clamping force. This is used to fix the device at the flange pipe 12 without modifying the original pipeline. It can guide the leakage liquid to drain smoothly. Disassembly and handling are relatively convenient. Connect the connection end of the leakage detection line 6 to the detection port of the water leakage alarm module 9, and connect the relay 10 to the output port of the module. Ensure that the cable connection is firm and not loose. When water leakage is detected, the module will trigger the relay 10 to operate, thereby controlling the operation of external equipment (connected to the solenoid valve on the control pipeline). After the wiring is completed, it is recommended to perform a water leakage test to ensure that the module is working properly. When liquid leaks out of the flange pipe 12 and drips onto the leakage detection line 6, it causes a change in the circuit resistance. The water leakage alarm module 9 converts the change in resistance into a current and voltage value, thereby driving the internal alarm circuit to perform an audible and visual alarm. At the same time, the module will trigger the relay 10 to operate, which controls the solenoid valve on the pipeline to cut off the fluid. It provides real-time monitoring and rapid detection, and has good flexibility in system layout selection.

[0033] In summary, the system can be directly installed at flange pipe 12 without modifying the original pipeline. It can guide the leakage liquid to drain smoothly, and disassembly and handling are relatively convenient. When liquid leaks out of flange pipe 12 and drips onto the leakage detection line 6, it causes a change in the circuit resistance. The leakage alarm module 9 converts the change in resistance into a current and voltage value, thereby driving the internal alarm circuit to perform an audible and visual alarm. At the same time, the module will trigger the relay 10 to control the solenoid valve on the pipeline to cut off the fluid. It provides real-time monitoring and rapid detection, and has good flexibility in system layout selection.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A leakage monitoring alarm device comprising a detection cartridge (1), characterised in that: The detection box (1) has slots (2) on its left and right sides, and a pipe clamp support (3) is provided on the outside of the slots (2). An arc-shaped cap (4) is installed on the pipe clamp support (3) by bolts. A winding rod (5) is installed inside the detection box (1), and a leakage detection line (6) is wound on the winding rod (5). A discharge port (7) is provided at the bottom of the detection box (1). A box cover (8) is hinged to the top of the detection box (1) by a hinge. A water leakage alarm module (9) and a relay (10) are respectively installed on the box cover (8). The leakage detection line (6) and the relay (10) are electrically connected to the water leakage alarm module (9).

2. A leak monitoring alarm device according to claim 1, wherein: The front side of the detection box (1) is equipped with a buckle (11), which is fastened to the box cover (8) by means of the buckle (11).

3. The leakage monitoring and alarm device according to claim 1, characterized in that: The test box (1) contains a flange pipe (12), and both ends of the flange pipe (12) extend outward from the slot (2).

4. The leakage monitoring and alarm device according to claim 3, characterized in that: The pipe clamp support (3) is supported at the bottom of the flange pipe (12), and the flange pipe (12) is clamped and fixed by the pipe clamp support (3) and the arc-shaped cap (4).

5. A leakage monitoring and alarm device according to claim 1, characterized in that: The winding rod (5) is located at the front and rear ends of the detection box (1), and the leakage detection line (6) is located below the flange pipe (12).

6. A leakage monitoring and alarm device according to claim 1, characterized in that: The bottom surface of the detection box (1) is conical, and the discharge port (7) is a pagoda connector.

7. A leakage monitoring and alarm device according to claim 1, characterized in that: The top part of the cover (8) is provided with an assembly groove (13) and an assembly port (14). The relay (10) is installed in the assembly groove (13), and the water leakage alarm module (9) is installed in the assembly port (14).