Water leakage detection sensor

Abstract

The utility model relates to a water leakage detection sensor, which comprises a collection container, a humidity sensor and a processor, the collection container is provided with a collection cavity for accumulating leaked water, a detection head of the humidity sensor is arranged in the collection cavity of the collection container, and the processor is electrically connected with the humidity sensor and is provided with a wireless connection module. The processor is in wireless communication with a remote end through the wireless connection module and sends detection data sent by the humidity sensor to the remote end. According to the utility model, the leaked water is accumulated in the collecting cavity, the liquid naturally evaporates to cause the local humidity change in the collecting cavity, the humidity change is detected by the humidity sensor in time, the water leakage detection can be realized at the beginning of water leakage or under the condition of little water leakage, and the detection sensitivity and accuracy are greatly improved; detection data are sent to a remote end in a wireless mode, the structure is simplified, and installation and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of water pipe leakage detection, in particular to a leakage detection sensor for a cold water pipe of a DC converter valve. Background Art

[0002] The traditional water leakage sensor collects the leaked water into the funnel-shaped structure through a special liquid collection device, and uses the buoyancy generated by the collected leaked water to lift the built-in float. The lifted float drives the shaft in the optical module of the detection device to rotate, thereby causing the optical signal channel in the shaft to be misaligned and blocked, and generating a corresponding valve tower leakage alarm signal. This traditional water leakage detection device has insufficient detection sensitivity and can only work when the amount of water leakage is large. If it is not installed tightly, it may cause secondary leakage. The wired signal collection and transmission method has the disadvantages of complex equipment structure, high price, high installation and maintenance costs, etc. Summary of the invention

[0003] In order to solve the above problems existing in water leakage detection, the utility model proposes a water leakage detection sensor to improve the sensitivity of water leakage detection.

[0004] In order to achieve the above-mentioned purpose, the water leakage detection sensor provided by the utility model is characterized in that it includes a collecting container, a humidity sensor and a processor, the collecting container has a collecting cavity for accumulating leaked water, the detection head of the humidity sensor is arranged in the collecting cavity of the collecting container, the processor is electrically connected to the humidity sensor, and has a wireless connection module, the processor wirelessly communicates with the remote end through the wireless connection module, and sends the detection data sent by the humidity sensor to the remote end.

[0005] The utility model accumulates leaking water in a collection chamber, and the natural evaporation of liquid causes a local humidity change in the collection chamber. The humidity change is immediately detected by the humidity sensor, and water leakage can be detected even at the beginning of the leakage or in the case of a small amount of leakage, thereby greatly improving the detection sensitivity and accuracy; the detection data is sent to a remote end wirelessly, which simplifies the structure and facilitates installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural schematic diagram of a water leakage detection sensor;

[0007] Figure 2 Exploded view of a water leak detection sensor.

[0008] The utility model is further described in detail below in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0009] See also Figure 1 and Figure 2The water leakage detection sensor includes a collection container, a humidity sensor, a processor, a shell 2 and a cover 3. The shell 2 and the cover 3 can be covered together, and the humidity sensor and the processor are arranged in the shell 2. The collection container includes a left half 11 and a right half 12. The left half 11 and the right half 12 are installed together to form a cylindrical collection chamber. The water pipe cooling joint 5 is in the collection chamber, and the collection chamber is used to accumulate water leakage from the water pipe cooling joint 5. A through hole is provided on the bottom wall of the collection chamber, and a vertical water pipe 51 connected to the water pipe cooling joint 5 passes through the through hole. A sealing member is provided between the through hole and the water pipe 81 to prevent the leakage accumulated in the collection chamber from flowing out. The left half 11 has a vertical plate 13 below the bottom wall of the collection chamber, and the vertical plate 13 is provided with a threaded hole. The shell 2 has a through groove 21 extending in the vertical direction and in the shape of an arc at a position directly opposite to the vertical plate 13. A threaded hole is provided on the side of the through groove 21. The through groove 21 and the vertical plate 13 are pressed on the water pipe 51 from both sides of the water pipe 51, and then screws are screwed into the threaded holes on the vertical plate 13 and the shell 2, so that the vertical plate 13 is connected to the shell 2, and the water pipe 51 is clamped between the vertical plate 13 and the shell 2. The shell 2 and the cover body 3 are both below the right half 12, and the cover body 3 is connected to the right half 12. By covering the cover body 3 on the shell 2, the right half 12 is installed on the shell 2. In order to simplify the connection between the right half 12 and the cover body 3 in this embodiment, the right half 12 and the cover body 3 are integrally formed. The bottom plate 4 is below the shell 2 and is installed on the shell 2 by threaded connection. A cylindrical through hole 22 extending in the horizontal direction is formed between the bottom plate 4 and the shell 2, the through groove 21 is connected to the through hole 22, and the water pipe 52 connected to the water pipe 51 passes through the through hole 22 and is clamped between the bottom plate 4 and the shell 2, so that the shell 2 can be installed on the water pipe 52 more firmly. The connection between the vertical plate 13 and the shell 2, the connection between the bottom plate 4 and the shell 2, the through groove 21 structure and the through hole 22 structure are designed for the cooling water pipe structure of the converter valve in the DC converter station, which can more conveniently and quickly install the water leakage detection sensor on the cooling water pipe, and the installation is more stable.

[0010] A humidity sensor, a processor and a battery are placed in the shell 2. The detection head of the humidity sensor extends into the collection chamber from the bottom of the collection chamber to detect the humidity in the collection chamber. If the water pipe cooling joint 5 leaks, the leaked water accumulates in the collection chamber of the collection container, and the liquid in the collection chamber evaporates naturally, causing local humidity changes in the collection chamber, and the humidity sensor immediately detects the humidity in the collection chamber. The processor is electrically connected to the humidity sensor, and the data detected by the humidity sensor is sent to the processor. The processor has a wireless connection module, which communicates with the remote end wirelessly through the wireless connection module, and sends the detection data sent by the humidity sensor to the remote end. The remote end can analyze the detection data, such as analyzing the amplitude of the humidity detection data change, or analyzing the humidity detection data and comparing it with the ambient humidity of the detection point, to determine whether the detected converter valve cooling water pipe has leaked. If a leak occurs, an alarm is issued. The remote end can be a computer, mobile phone or other smart device.

[0011] A water absorbent is provided in the collection chamber of the collection container. The material of the water absorbent can be a sponge or other hygroscopic material (such as a polymer material). The water absorbent absorbs the leaked water in the collection chamber, spreads the liquid, accelerates the evaporation rate, and produces a local high humidity environment. The initial small amount of water leakage can be fully absorbed by the water absorbent, quickly increasing the humidity in the collection chamber, and realizing rapid and accurate detection of small amounts of water leakage. The water absorbent can also prevent the collection chamber from seeping, flowing out or overflowing. A label that changes color when wet can also be set on the side wall of the collection chamber of the collection container. When the humidity reaches a certain range, the label will change color. The color-changing label can help to visually monitor the leakage on site.

[0012] The utility model accumulates leaking water in a collection chamber, and the natural evaporation of liquid causes a local humidity change in the collection chamber. The humidity change is immediately detected by the humidity sensor, and water leakage can be detected even at the beginning of the leakage or in the case of a small amount of leakage, thereby greatly improving the detection sensitivity and accuracy; the detection data is sent to a remote end wirelessly, which simplifies the structure and facilitates installation and maintenance.

Claims

1. A water leakage detection sensor, characterized in that: It includes a collection container, a humidity sensor and a processor. The collection container has a collection cavity for accumulating leaked water. The detection head of the humidity sensor is arranged in the collection cavity of the collection container. The processor is electrically connected to the humidity sensor and has a wireless connection module. The processor wirelessly communicates with the remote end through the wireless connection module and sends the detection data sent by the humidity sensor to the remote end.

2. The water leakage detection sensor according to claim 1, characterized in that: A water absorbing body is arranged in the collecting cavity of the collecting container.

3. The water leakage detection sensor according to claim 2, characterized in that: A through hole is provided on the bottom wall of the collecting chamber of the collecting container. The through hole is used for a water pipe to pass through. A sealing member is provided between the through hole and the water pipe.

4. The water leakage detection sensor according to claim 3, characterized in that: It also includes a shell and a cover body that are covered together, the humidity sensor and the processor are arranged in the shell, the collection container includes a left half and a right half, the left half has a vertical plate below the bottom wall of the collection chamber, the vertical plate is connected to the shell, and the right half is connected to the cover body.

5. The water leakage detection sensor according to claim 4, characterized in that: The invention also comprises a bottom plate, which is mounted on the shell, and a cylindrical through hole extending in a horizontal direction is formed between the bottom plate and the shell below the shell.

6. The water leakage detection sensor according to claim 5, characterized in that: The shell has an arc-shaped through groove extending in the vertical direction at a position directly opposite to the vertical plate, and the through groove is communicated with the through hole.

7. The water leakage detection sensor according to claim 6, characterized in that: A label that changes color when wet is arranged on the side wall of the collecting chamber of the collecting container.

Images