Leak detection sensor and leak detection system to which it is applicable

Abstract

The present application provides a leakage detection sensor and a leakage detection system using the same. The leakage detection sensor is configured to detect a leakage liquid overflowing from a junction, and includes a first conductor layer, an insulator, and a second conductor layer. The first conductor layer includes a first through hole penetrating a first surface and a second surface opposite to each other. The junction is located outside the first surface and is disposed adjacent to the first through hole. The insulator is disposed on the second surface of the first conductor layer and includes a second through hole communicating with the first through hole. The second conductor layer is connected to the second surface of the first conductor layer through the insulator and includes a contact surface communicating with the junction through the second through hole and the first through hole. The first conductor layer and the second conductor layer are insulated from each other by the insulator. When the leakage liquid overflows into the first through hole and the second through hole and contacts the contact surface, the second conductor layer is conducted to the first conductor layer to form a conduction resistance value.

Description

TECHNICAL FIELD

[0001] The present application relates to a leakage detection sensor, in particular to a leakage detection sensor for liquid pipeline junction and a leakage detection system suitable for the same, which realizes leakage liquid detection through a conduction resistance detection mode. BACKGROUND

[0002] Liquid pipeline leakage detection has been widely applied in large pipelines such as tap water pipelines, liquid chemicals and oil pipelines. During the transportation of tap water, liquid chemicals and oil, the junctions of equipment, pipelines, valves and flanges are under pressure for a long time, which may cause leakage of liquid and further cause casualties or property losses. The traditional leakage detection method is usually to determine whether the pipeline has a leakage condition by detecting whether the pressure change in the pipeline is abnormal. However, this detection method is only suitable for long and large diameter transportation pipelines, and cannot determine the location of the leakage. In addition, the instrument needs to be assisted to accurately determine the possibility of leakage.

[0003] Therefore, it is necessary to provide a leakage detection sensor and a leakage detection system suitable for the same. The conduction resistance detection mode is used to replace the traditional pressure change detection method in the pipeline, which improves the sensitivity of the leakage liquid trigger sensor, is suitable for complex circuits, and can be used in the form of segmentation to cover the junctions that may leak, accurately determine the leakage block, and solve the defects of the known technology. SUMMARY

[0004] The present application relates to a leakage detection sensor, in particular to a leakage detection sensor for liquid pipeline junction and a leakage detection system suitable for the same, which realizes leakage liquid detection through a conduction resistance detection mode.

[0005] Another object of the present application is to provide a leakage detection sensor and a leakage detection system suitable for the same. The leakage detection sensor is designed in a sandwich structure with conductor layers on the top and bottom and an insulator in the middle. The upper and lower conductor layers are first powered on. Since the upper conductor layer and the middle insulator are designed with multiple holes, the leakage liquid can flow to the lower conductor layer. When the leakage liquid passes through the holes to form a conduction resistance between the upper and lower conductor layers, the sensor is triggered. Compared with the traditional pressure change detection method in the pipeline, the leakage detection sensor of the present application has sensitive sensing ability. When there is leakage liquid, even a small amount of leakage can immediately trigger the sensor to find the leakage position and make subsequent processing, avoiding a large amount of leakage liquid causing casualties or property losses.

[0006] Another object of the present invention is to provide a leak detection sensor and a suitable leak detection system thereof. The sandwich structure design has a wide range of applications; the leak detection sensor can be laid flat or sandwiched for different junction environments. In leak detection applications with multiple junctions, the location of the leak can be further detected by measuring the regression correction of the conduction resistance, simplifying the configuration of the leak detection sensor in complex junction pipelines and efficiently integrating leak detection applications.

[0007] To achieve the aforementioned objectives, the present invention provides a leak detection sensor for detecting a leaking liquid overflowing from a junction. The leak detection sensor includes a first conductor layer, an insulator, and a second conductor layer. The first conductor layer includes a first surface and a second surface opposite to each other, and at least one first through-hole penetrating both the first and second surfaces. The junction is located outside the first surface, and the at least one first through-hole is adjacent to the junction. The insulator is disposed on the second surface and includes at least one second through-hole, which communicates with the at least one first through-hole. The second conductor layer is connected to the second surface of the first conductor layer via the insulator and includes at least one conductive surface communicating with the junction through the at least one second through-hole and the at least one first through-hole. The first and second conductor layers are insulated from each other by the insulator. When the leaking liquid overflows into the first and second through-holes and contacts the at least one conductive surface, the second conductor layer becomes conductive to the first conductor layer, forming a conduction resistance value.

[0008] In one embodiment, the leak detection sensor further includes a first wire and a second wire, which are electrically connected to the first conductor layer and the second conductor layer, respectively.

[0009] In one embodiment, the leak detection sensor further includes a sensor electrically connected to the first conductor layer and the second conductor layer via a first wire and a second wire, respectively, and measuring the conduction resistance value when the leaking liquid overflows into the first through hole and the second through hole and comes into contact with at least one conductive surface.

[0010] In one embodiment, the first conductor layer and the second conductor layer have a potential difference.

[0011] In one embodiment, at least one first through hole includes a plurality of first through holes, and at least one second through hole includes a plurality of second through holes. The plurality of first through holes correspond to the plurality of second through holes respectively and are disposed adjacent to the outer periphery of the transition point.

[0012] To achieve the foregoing, the present application provides a leak detection system including at least one adapter and a leak detection sensor. The at least one adapter is connected to a pipe to form at least one adapter location. The leak detection sensor is disposed adjacent to the at least one adapter location to detect a leaking fluid that flows from the at least one adapter location, wherein the leak detection sensor includes a first conductor layer, an insulator, and a second conductor layer. The first conductor layer includes a first surface and a second surface opposite to each other, and at least one first through hole penetrating the first surface and the second surface, wherein the adapter location is located outside the first surface, and the at least one first through hole is disposed adjacent to the adapter location. The insulator is disposed on the second surface and includes at least one second through hole, and the at least one second through hole and the at least one first through hole are in communication with each other. The second conductor layer is connected to the second surface of the first conductor layer through the insulator, and includes at least one contact surface that is in communication with the adapter location through the at least one second through hole and the at least one first through hole. When the leaking fluid flows into the first through hole and the second through hole and contacts the at least one contact surface, the second conductor layer is in conduction with the first conductor layer, and a conduction resistance value is formed.

[0013] In an embodiment, the leak detection sensor is disposed along the pipe and adheres to an outer periphery of the pipe, and the at least one adapter is led out from the outer periphery of the pipe.

[0014] In an embodiment, the first conductor layer includes at least one first opening, the insulator includes at least one second opening, and the second conductor layer includes at least one third opening, the at least one first opening, the at least one second opening, and the at least one third opening are spatially opposite to the at least one adapter location, and the at least one adapter sequentially penetrates the at least one third opening, the at least one second opening, and the at least one first opening, so that the adapter location is located outside the first surface, and the at least one first through hole is disposed adjacent to the adapter location.

[0015] In an embodiment, the pipe includes at least one positioning column adjacent to the at least one adapter location, wherein the first conductor layer includes at least one first positioning hole, the insulator includes at least one second positioning hole, and the second conductor layer includes at least one third positioning hole, the at least one first positioning hole, the at least one second positioning hole, and the at least one third positioning hole are spatially opposite to and in communication with each other, and are configured to allow the at least one positioning column to sequentially penetrate the at least one third positioning hole, the at least one second positioning hole, and the at least one first positioning hole, so that the second conductor layer, the insulator, and the first conductor layer are stacked on the pipe.

[0016] In one embodiment, the pipe includes at least one locking member and at least one locking hole, which are spatially opposite to each other, the first conductor layer includes at least one first clamping portion, the insulator includes at least one second clamping portion, and the second conductor layer includes at least one third clamping portion, the at least one first clamping portion, the at least one second clamping portion, and the at least one third clamping portion are spatially opposite to the at least one locking hole, and when the at least one locking member engages with the at least one locking hole, the at least one first clamping portion, the at least one second clamping portion, and the at least one third clamping portion are clamped, so that the second conductor layer, the insulator, and the first conductor layer are fixedly stacked on the pipe.

[0017] In one embodiment, the pipe extends along a direction and has a first end and a second end opposite to each other, and the leakage detection sensor further includes a first lead wire and a second lead wire arranged at the first end of the pipe and electrically connected to the first conductor layer and the second conductor layer, respectively.

[0018] In one embodiment, the at least one adapter includes a first adapter and a second adapter arranged along the direction of the pipe, and the distance from the second adapter to the first end is greater than the distance from the first adapter to the first end, and the leakage liquid overflowing at the second adapter corresponds to a formed on-resistance value greater than the leakage liquid overflowing at the first adapter corresponds to a formed on-resistance value.

[0019] In one embodiment, the at least one adapter is led out from one end of the pipe, the leakage detection sensor is arranged along the pipe, and covers the at least one adapter.

[0020] In one embodiment, the first surface of the first conductor layer covers the at least one adapter, the insulator is covered on the second surface of the first conductor layer, and the second conductor layer is covered outside the insulator.

[0021] In one embodiment, the leakage detection system further includes a shell sleeve detachably arranged on the pipe and covering the leakage detection sensor and the at least one adapter.

[0022] In one embodiment, the shell sleeve further includes at least one positioning column arranged on the inner wall surface of the shell sleeve, the first conductor layer includes at least one first positioning hole, the insulator includes at least one second positioning hole, and the second conductor layer includes at least one third positioning hole, the at least one first positioning hole, the at least one second positioning hole, and the at least one third positioning hole are spatially opposite to and communicate with each other, and when the shell sleeve covers the leakage detection sensor and the at least one adapter, the at least one positioning column sequentially penetrates the corresponding at least one third positioning hole, at least one second positioning hole, and at least one first positioning hole.

[0023] In one embodiment, the leakage detection sensor further includes a sensor electrically connected to the first conductor layer and the second conductor layer, respectively, and configured to measure the on-resistance value when the leakage liquid overflows to the first through hole and the second through hole and contacts the at least one contact surface.

[0024] In one embodiment, the first and second conductor layers are electrically connected to different potentials, respectively.

[0025] The present application provides a leakage detection sensor and a leakage detection system using the same. The leakage detection sensor uses a conduction resistance detection mode to replace a conventional pressure change detection mode, thereby improving the sensitivity of the leakage detection sensor and being applicable to a complex circuit. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 FIG. 1 shows an external structure of a leakage detection system according to a first preferred embodiment of the present application.

[0027] Figure 2 FIG. 2 shows an exploded view of the leakage detection system according to the first preferred embodiment of the present application.

[0028] Figure 3 FIG. 3 shows an exploded view of a leakage detection sensor according to the first preferred embodiment of the present application.

[0029] Figure 4A FIG. 4 shows an example of detecting an overflow leakage liquid by the leakage detection system according to the first preferred embodiment of the present application.

[0030] Figure 4B FIG. 5 shows another example of detecting an overflow leakage liquid by the leakage detection system according to the first preferred embodiment of the present application.

[0031] Figure 5 FIG. 6 shows an application example of the leakage detection system according to the first preferred embodiment of the present application.

[0032] Figure 6 FIG. 7 shows an external structure of a leakage detection system according to a second preferred embodiment of the present application.

[0033] Figure 7 FIG. 8 shows a schematic view of exposing a leakage detection sensor by disassembling a housing cover of the leakage detection system according to the second preferred embodiment of the present application.

[0034] Figure 8 FIG. 9 shows a partial exploded view of the leakage detection sensor of the leakage detection system according to the second preferred embodiment of the present application.

[0035] The reference signs are as follows:

[0036] 1, 1a: leakage detection system

[0037] 10, 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k: adapter

[0038] 11: pipe

[0039] 11a: first end

[0040] 11b: second end

[0041] 111: locking hole

[0042] 12: shell sleeve

[0043] 13: positioning column

[0044] 2, 2a: leak detection sensor

[0045] 21: first conductor layer

[0046] 21a: first surface

[0047] 21b: second surface

[0048] 211a, 211b, 211c: first opening

[0049] 212, 212a, 212b, 212c: first through hole

[0050] 213: first alignment hole

[0051] 214: first clamping portion

[0052] 22: insulator

[0053] 221a, 221b, 221c: second opening

[0054] 222, 222a, 222b, 222c: second through hole

[0055] 223: second alignment hole

[0056] 224: second clamping portion

[0057] 23: second conductor layer

[0058] 230: lead surface

[0059] 231a, 231b, 231c: third opening

[0060] 232: third alignment hole

[0061] 233: third clamping portion

[0062] 24: first wire

[0063] 25: second wire

[0064] 31: positioning post

[0065] 32: locking member

[0066] 9: leaking liquid

[0067] X, Y, Z: axes DETAILED DESCRIPTION

[0068] It is to be understood that the application can assume various alternative orientations and step sequences, except where expressly specified to the contrary. It is also to be understood that the specific devices and environments illustrated in the attached drawings, and described in the following specification are exemplary embodiments of the application. The application is not limited to the specific embodiments described in this specification but extends to encompasses all such embodiments, modifications and alterations that fall within the scope of the application. For example, if a first feature is described as being "on" or "above" a second feature, this can include embodiments in which the first feature is directly on or above the second feature, as well as embodiments in which an additional feature is interposed between the first feature and the second feature, such that the first feature is not directly on or above the second feature. Also, different embodiments of the application can use the same or similar reference numerals to denote similar or analogous features. These repeated use of reference numerals is for the purpose of simplifying the drawings and the following detailed description, and is not intended to limit the scope of the application in any way. Furthermore, spatially relative terms, such as "below", "above", "lower", "upper", and the like, can be used herein for ease of describing the exemplary embodiments of the application. It will be further understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. It is to be understood that the use of spatially relative terms does not limit the scope of the application to only a particular orientation of the device. Rather, an apparatus can be used in any orientation, and the description herein is intended to cover all such uses. It is also to be understood that the use of the terms "first", "second", "third", etc. to describe various components is only intended to be illustrative, and is not intended to limit the scope of the application to only these components. Rather, such terms are used to distinguish different components from one another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component without departing from the scope of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0069] Figure 1 Figure 1 is a perspective view of a leak detection system according to a first preferred embodiment of the present application. Figure 2 Figure 2 is an exploded view of the leak detection system of Figure 1.Figure 3 Figure 1 is a perspective view of a leak detection sensor according to a first preferred embodiment of the present application. Figure 4A and Figure 4BTo disclose an exemplary embodiment of the leak detection system in the first preferred embodiment of the present application for detecting a leakage liquid. In the embodiment, the leak detection system 1 comprises at least one adapter and a leak detection sensor 2. The leak detection sensor 2 is arranged along a pipe 11, for example, horizontally along the X-axis direction, and adheres to the outer periphery of the pipe 11. At least one adapter is led out from the outer periphery of the pipe 11, for example, in the Z-axis direction. It should be noted that in the embodiment, the at least one adapter, for example, any one of the first adapter 10a, the second adapter 10b, and the third adapter 10c, can be adjusted in number relative to the leak detection sensor 2 according to actual application requirements, and the present application is not limited thereto. In the embodiment, the first adapter 10a, the second adapter 10b, and the third adapter 10c are respectively connected to a pipe 11 to form three adapters. The leak detection sensor 2 is arranged adjacent to the three adapters formed by the first adapter 10a, the second adapter 10b, and the third adapter 10c to detect a leakage liquid 9 overflowing from any one of the adapters. In the embodiment, the leak detection sensor 2 comprises a first conductor layer 21, an insulator 22, and a second conductor layer 23. The first conductor layer 21 comprises a first surface 21a and a second surface 21b opposite to each other. Corresponding to the first adapter 10a, the first conductor layer 21 comprises a first opening 211a and at least one first through hole 212a penetrating the first surface 21a and the second surface 21b. The first adapter 10a passes through the first opening 211a, and the adapter formed by the first adapter 10a is located outside the first surface 21a of the first conductor layer 21, and the at least one first through hole 212a is arranged adjacent to the adapter formed by the first adapter 10a. The insulator 22 is arranged on the second surface 21b of the first conductor layer 21, and corresponding to the first adapter 10a, comprises a second opening 221a and at least one second through hole 222a. The first adapter 10a passes through the second opening 221a, and the at least one second through hole 222a and the corresponding at least one first through hole 212a communicate with each other. The second conductor layer 23 is connected to the second surface 21b of the first conductor layer 21 through the insulator 22, and comprises a third opening 231a and at least one contact surface 230. The first adapter 10a passes through the third opening 231a, and the at least one contact surface 230 is connected to the adapter formed by the first adapter 10a connecting the pipe 11 through the corresponding at least one second through hole 222a and at least one first through hole 211a. In other embodiments, the contact surface 230 is further provided with an opening (not shown) corresponding to the second through hole 222a and the first through hole 211a, that is, the contact surface 230 further extends to the inner wall surface of the opening, and is connected to the adapter formed by the first adapter 10a connecting the pipe 11 through the corresponding second through hole 222a and first through hole 211a. Of course, the present application is not limited thereto.Corresponding to the second adapter 10b, the first conductive layer 21 includes a first opening 211b and at least one first through hole 212b penetrating the first surface 21a and the second surface 21b. The second adapter 10b passes through the first opening 211b, and the adapter formed by the second adapter 10b is located outside the first surface 21a of the first conductive layer 21, and at least one first through hole 212b is arranged adjacent to the adapter formed by the second adapter 10b. The insulator 22 corresponding to the second adapter 10b includes a second opening 221b and at least one second through hole 222b. The second adapter 10b passes through the second opening 221b, and the at least one second through hole 222b and the corresponding at least one first through hole 212b are in communication with each other. The second adapter 10b passes through the third opening 231b, and the at least one conductive surface 230 is connected to the adapter formed by the connecting pipe 11 of the second adapter 10b through the corresponding at least one second through hole 222b and at least one first through hole 212b. In other embodiments, the conductive surface 230 is further provided with an opening (not shown) corresponding to the second through hole 222b and the first through hole 211b, that is, the conductive surface 230 further extends to the inner wall surface of the opening, and is connected to the adapter formed by the connecting pipe 11 of the second adapter 10b through the corresponding second through hole 222b and first through hole 211b. Of course, the present application is not limited thereto. Similarly, the third adapter 10c sequentially penetrates the third opening 231c on the corresponding second conductive layer 23, the second opening 221c on the insulator 22, and the first opening 211c on the first conductive layer 21, so that the adapter formed by the connecting pipe 11 of the third adapter 10c is located outside the first surface 21a, and is arranged adjacent to the corresponding first through hole 212c. It should be noted that any one of the first adapter 10a, the second adapter 10b and the third adapter 10c can be omitted, and the number thereof can be adjusted according to actual application requirements, and the present application is not limited thereto. In addition, the number, size and arrangement of the at least one first through hole 212a, 212b, 212c and the corresponding at least one second through hole 222a, 222b, 222c can also be adjusted according to actual application requirements, for example, a plurality of corresponding through holes are arranged around the corresponding adapter. The present application is not limited thereto.

[0070] In the present embodiment, the first conductor layer 21 and the second conductor layer 23 are insulated from each other by the insulator 22. The leakage detection sensor 2 further comprises a first lead wire 24, a second lead wire 25, and a sensor (not shown). The first lead wire 24 and the second lead wire 25 are arranged, for example, at the first end 11a of the pipe 11. The sensor is electrically connected to the first conductor layer 21 and the second conductor layer 23 through the first lead wire 24 and the second lead wire 25, respectively. The first conductor layer 21 and the second conductor layer 23 are further maintained in a power-on state, for example, are electrically connected to different potentials, i.e., there is a potential difference between the first conductor layer 21 and the second conductor layer 23, to achieve the detection of the leakage liquid 9. Taking the first adapter 10a as an example, when the leakage liquid 9 overflows to the first through hole 212a and the second through hole 222a corresponding to the first adapter 10a and contacts the conductive surface 230, the sensor can measure the conduction resistance value formed between the second conductor layer 23 and the first conductor layer 21, as shown in FIG. 8. Similarly, taking the second adapter 10b as an example, when the leakage liquid 9 overflows to the first through hole 212b and the second through hole 222b corresponding to the second adapter 10b and contacts the conductive surface 230, the sensor can measure the conduction resistance value formed between the second conductor layer 23 and the first conductor layer 21, as shown in FIG. 9. In other words, the leakage detection sensor 2 is designed in a sandwich structure, the upper and lower first conductor layer 21 and second conductor layer 23 are conductors, and the middle is the insulator 22, wherein the first conductor layer 21 and the second conductor layer 23 are powered on first. Since the upper first conductor layer 23 and the middle insulator 22 are both designed with multiple through holes, the leakage liquid 9 can flow to the conductive surface 230 of the second conductor layer 23, so that the first conductor layer 21 and the second conductor layer 23 form a conduction resistance value, which can trigger the sensor. Compared with the conventional detection method of the amount of change in the pressure in the pipe, the leakage detection sensor 2 of the present application has sensitive sensing capability. Whenever there is leakage liquid 9, even a slight amount of leakage can immediately trigger the sensor to find the location of the leakage and take subsequent measures, thereby avoiding the loss of life and property caused by a large amount of leakage liquid 9. Figure 4A Figure 4B In other words, the leakage detection sensor 2 is designed in a sandwich structure, the upper and lower first conductor layer 21 and second conductor layer 23 are conductors, and the middle is the insulator 22, wherein the first conductor layer 21 and the second conductor layer 23 are powered on first. Since the upper first conductor layer 23 and the middle insulator 22 are both designed with multiple through holes, the leakage liquid 9 can flow to the conductive surface 230 of the second conductor layer 23, so that the first conductor layer 21 and the second conductor layer 23 form a conduction resistance value, which can trigger the sensor. Compared with the conventional detection method of the amount of change in the pressure in the pipe, the leakage detection sensor 2 of the present application has sensitive sensing capability. Whenever there is leakage liquid 9, even a slight amount of leakage can immediately trigger the sensor to find the location of the leakage and take subsequent measures, thereby avoiding the loss of life and property caused by a large amount of leakage liquid 9.

[0071] In addition, it should be noted that in the present embodiment, the pipe 11 extends along the X-axis direction, and the first adapter 10a and the second adapter 10b are also arranged along the X-axis direction. Under the condition that the first conductor layer 21 and the second conductor layer 23 are maintained in a power-on state, the distance from the second adapter 10b to the first end 11a is greater than the distance from the first adapter 10a to the first end 11a, and the conduction resistance value corresponding to the overflow of the leakage liquid 9 at the second adapter 10b is greater than the conduction resistance value corresponding to the overflow of the leakage liquid 9 at the first adapter 10a. Similarly, the conduction resistance value corresponding to the overflow of the leakage liquid 9 at the third adapter 10c is greater than the conduction resistance value corresponding to the overflow of the leakage liquid 9 at the second adapter 10b.

[0072] In other words, the leakage detection sensor 2 is designed in a sandwich structure, the upper and lower first conductor layer 21 and second conductor layer 23 are conductors, and the middle is the insulator 22, wherein the first conductor layer 21 and the second conductor layer 23 are powered on first. Since the upper first conductor layer 23 and the middle insulator 22 are both designed with multiple through holes, the leakage liquid 9 can flow to the conductive surface 230 of the second conductor layer 23, so that the first conductor layer 21 and the second conductor layer 23 form a conduction resistance value, which can trigger the sensor. Compared with the conventional detection method of the amount of change in the pressure in the pipe, the leakage detection sensor 2 of the present application has sensitive sensing capability. Whenever there is leakage liquid 9, even a slight amount of leakage can immediately trigger the sensor to find the location of the leakage and take subsequent measures, thereby avoiding the loss of life and property caused by a large amount of leakage liquid 9.Figure 5 To disclose an application example of the leak detection system of the first preferred embodiment of the present application. Referring to Figures 1 to 5 In this embodiment, a plurality of adapters 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k are arranged equidistantly from the first end 11a to the second end 11b (i.e. the X-axis direction) of the pipe 11, and the leak detection sensor 2 is correspondingly arranged in the same manner as described above. As known from the above, under the condition that the first conductor layer 21 and the second conductor layer 23 are maintained in the energized state, the conductive resistance value corresponding to the overflow of the leakage liquid 9 at each adapter 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k has a correlation with the distance from the first end 11a of the adapter 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k. In other words, in the leak detection application of a plurality of adapters, the position of the leakage can be further sensed by measuring the regression correction of the conductive resistance, the configuration of the leak detection sensor 2 in the complex adapter pipe is simplified, and the application of leak detection is effectively integrated. In this embodiment, the adapters 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k are configured with a single leak detection sensor 2 for leak detection application. In other embodiments, the adapters 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k can be segmented by a plurality of leak detection sensors 2 for leak detection application. The present application is not limited thereto. By replacing the conventional detection mode of the amount of pressure change in the pipe with the detection mode of the conductive resistance, the leak detection sensor 2 of the present application further improves the sensitivity of the leakage liquid trigger sensor, is suitable for circuits with complex circuits, and can be in the form of segmentation and filled in the adapters that may leak to accurately grasp the leakage block. Of course, the present application is not limited thereto.

[0073] In addition, please refer to Figures 1 to 3In this embodiment, the pipe 10 includes at least one positioning post 31, which is adjacent to one of the first adapter 10a, the second adapter 10b and the third adapter 10c. Corresponding to the at least one positioning post 31, the first conductor layer 21 includes at least one first positioning hole 213, the insulator 22 includes at least one second positioning hole 223, and the second conductor layer 23 includes at least one third positioning hole 232. The at least one first positioning hole 213, the at least one second positioning hole 223 and the at least one third positioning hole 232 are spatially opposite and communicate with each other, and are configured to allow the at least one positioning post 31 to sequentially penetrate the at least one third positioning hole 232, the at least one second positioning hole 223 and the at least one first positioning hole 213, so that the second conductor layer 23, the insulator 22 and the first conductor layer 21 are stacked on the pipe 11. In this embodiment, the pipe 11 further includes at least one locking member 32 and at least one locking hole 111, which are spatially opposite. In addition, the first conductor layer 21 includes at least one first clamping portion 214, the insulator 22 includes at least one second clamping portion 224, and the second conductor layer 23 includes at least one third clamping portion 233. The at least one first clamping portion 214, the at least one second clamping portion 224 and the at least one third clamping portion 233 are spatially opposite to the at least one locking hole 111. When the at least one locking member 32 engages with the at least one locking hole 111, the at least one first clamping portion 214, the at least one second clamping portion 224 and the at least one third clamping portion 233 are clamped, so that the second conductor layer 23, the insulator 22 and the first conductor layer 11 are fixedly stacked on the pipe 11. Of course, the way in which the leakage detection sensor 2 is arranged on the pipe 11 can be adjusted according to actual application requirements, and the present application is not limited thereto.

[0074] Figure 6 A perspective view of a leakage detection system according to a second preferred embodiment of the present application. Figure 7 A perspective view of a leakage detection system according to a second preferred embodiment of the present application. Figure 8 A perspective view of a leakage detection system according to a second preferred embodiment of the present application. Figures 1 to 5 The leakage detection system 1 and the leakage detection sensor 2 shown in the figure are similar to those in the first preferred embodiment, and the same element numbers represent the same elements, structures and functions, which will not be described again. In this embodiment, the adapter 10 is led out from one end of the pipe 11 and connected to another pipe. In this embodiment, the leakage detection sensor 2a also has a sandwiched structure, which covers the adapter 10 and the pipe 11 to form an adapter. The leakage detection sensor 2a is adjacent to the adapter formed by the adapter 10 and the pipe 11, and is configured to detect a leakage liquid 9 (see FIG. 1) overflowing from the adapter. Figure 4A The leakage detection sensor 2a is adjacent to the adapter formed by the adapter 10 and the pipe 11, and is configured to detect a leakage liquid 9 (see FIG. 1) overflowing from the adapter. Figure 4B). In this embodiment, the leak detection sensor 2a comprises a first conductor layer 21, an insulator 22 and a second conductor layer 23. The first conductor layer 21 comprises a first surface 21a and a second surface 21b opposite to each other, and a plurality of first through holes 212 penetrating the first surface 21a and the second surface 21b. The adapter joint 10 and the pipeline 11 form an adapter at the first surface 21a, and the plurality of first through holes 212 are arranged adjacent to the adapter. The insulator 22 is arranged on the second surface 21b and comprises a plurality of second through holes 222, which are spatially opposite to the plurality of first through holes 212 and respectively communicate with the corresponding first through holes 212. The second conductor layer 23 is connected to the second surface 21a of the first conductor layer 21 through the insulator 22 and further has a lead surface 230, which communicates with the adapter formed by the adapter joint 10 and the pipeline 11 through the corresponding second through holes 222 and first through holes 212. In other embodiments, the lead surface 230 is further provided with an opening (not shown) corresponding to the second through holes 222 and the first through holes 212, i.e. the lead surface 230 further extends to the inner wall surface of the opening and communicates with the adapter formed by the adapter joint 10 and the pipeline 11 through the corresponding second through holes 222 and first through holes 212. Of course, the present application is not limited thereto. In this embodiment, the first conductor layer 21 and the second conductor layer 23 are insulated from each other through the insulator 22, and when the leaked liquid 9 overflows into any corresponding first through hole 212 and second through hole 222 and contacts the lead surface 230, the second conductor layer 23 is conducted to the first conductor layer 21 to form a conduction resistance value, thereby realizing the application of leak detection.

[0075] In this embodiment, the leak detection sensor 2a is wrapped around the joint between the adapter 10 and the pipe 11, for example, in a sandwiched structure. In one embodiment, the leak detection sensor 2a is arranged next to the joint between the adapter 10 and the pipe 11, for example, in a single sandwiched structure. In another embodiment, the leak detection sensor 2a is wrapped around the joint between the adapter 10 and the pipe 11, for example, in a plurality of sandwiched structures. In other embodiments, the number and type of the leak detection sensor 2a can be varied according to the requirements of the application. Of course, the present application is not limited in this regard. In this embodiment, the leak detection sensor 2a also includes a first conductor layer 21, a second conductor layer 23, and a sensor (not shown). The sensor is electrically connected to the first conductor layer 21 and the second conductor layer 23 through the first lead 24 and the second lead 25, respectively. The first conductor layer 21 and the second conductor layer 23 are maintained in an energized state, for example, by being electrically connected to different potentials, i.e., there is a potential difference between the first conductor layer 21 and the second conductor layer 23, to enable detection of the leaking liquid 9. In this embodiment, the leak detection range of the leak detection sensor 2a is small, and when the leaking liquid 9 overflows into any corresponding first through hole 212 and second through hole 222 and contacts the contact surface 230, the second conductor layer 23 will be electrically connected to the first conductor layer 21. In other embodiments, the number, size, and corresponding arrangement of the first through hole 212 and the second through hole 222 can be varied according to the requirements of the application. The present application is not limited in this regard.

[0076] In another aspect, in the present embodiment, the leakage detection system 1a further comprises a housing sleeve 12 detachably arranged on the pipeline 11 and covering the leakage detection sensor 2a and the at least one adapter 10. After the leakage detection sensor 2a covers the joint between the adapter 10 and the pipeline 11, the housing sleeve 12 covers the leakage detection sensor 2a in a clamping manner, so that the leakage detection sensor 2a is firmly attached to the outer periphery of the adapter 10 and the joint leakage detection between the adapter 10 and the pipeline 11 is realized. By covering the leakage detection sensor 2a with the housing sleeve 12, in addition to providing basic protection, the leakage detection sensor 2a is also protected from external factors, and even a small amount of leakage can trigger the leakage detection sensor 2a. In the present embodiment, the housing sleeve 12 further comprises at least one positioning column 13 arranged on the inner wall of the housing sleeve 12. Corresponding to the at least one positioning column 13 on the housing sleeve 12, the first conductor layer 21 comprises at least one first positioning hole 213, the insulator 22 comprises at least one second positioning hole 223, and the second conductor layer 23 comprises at least one third positioning hole 232. The at least one first positioning hole 213, the at least one second positioning hole 223, and the at least one third positioning hole 232 are spatially opposite and communicate with each other, and are configured to allow the at least one positioning column 13 to sequentially penetrate the at least one third positioning hole 232, the at least one second positioning hole 223, and the at least one first positioning hole 213. In other words, when the housing sleeve 12 covers the leakage detection sensor 2a and the at least one adapter 10, the at least one positioning column 13 sequentially penetrates the corresponding at least one third positioning hole 232, at least one second positioning hole 223, and at least one first positioning hole 213, so that the leakage detection sensor 2a is firmly fixed on the housing sleeve 12. During installation, the second conductor layer 23, the insulator 22, and the first conductor layer 21 are first fixed to the inner wall of the housing sleeve 12 by sequentially penetrating the corresponding third positioning hole 232, second positioning hole 223, and first positioning hole 213 through the positioning column 13, and then the first surface 21a of the first conductor 21 is brought close to the adapter 10 by the clamping spring of the housing sleeve 12, so that the housing sleeve 12 and the leakage detection sensor 2a are firmly covered on the outer periphery of the adapter 10, and the joint leakage detection between the adapter 10 and the pipeline 11 is realized. Of course, the way the housing sleeve 12 covers the leakage detection sensor 2a and the adapter 10 is not limited to this, and will not be described again.

[0077] As can be seen from the above, the sandwiched structure of the leakage detection sensor 2 and the leakage detection sensor 2a has a wide range of applications. For different joint environments, the leakage detection sensor 2 and the leakage detection sensor 2a can be laid flat or wrapped around. Of course, the leakage detection system 1, 1a and the leakage detection sensor 2, 2a of the present application can be combined and changed according to the actual application requirements.

[0078] In summary, the present application provides a leakage detection sensor and a leakage detection system using the same. The sensitivity of the leakage liquid trigger sensor is improved by replacing the conventional pipe pressure change detection method with a conduction resistance detection mode. The leakage detection sensor is suitable for use in a complex circuit and can be arranged in a segmented form on the switching position where leakage may occur to accurately determine the leakage position. In addition, the leakage detection sensor is designed in a sandwich structure with a conductor layer at the top and bottom and an insulator in the middle. The upper and lower conductor layers are first energized. The upper conductor layer and the middle insulator are both designed with multiple holes so that the leakage liquid can flow to the lower conductor layer. When the leakage liquid passes through the holes to form a conduction resistance between the upper and lower conductor layers, the sensor is triggered. Compared with the conventional pipe pressure change detection method, the leakage detection sensor has a sensitive sensing capability. When leakage liquid occurs, even a small amount of leakage can immediately trigger the sensor to find the leakage position and perform subsequent processing to avoid the loss of life and property caused by a large amount of leakage liquid. Furthermore, the sandwich structure design has a wide range of applications. For different switching positions, the leakage detection sensor can be arranged in a flat or sandwiched manner. In the leakage detection of multiple switching positions, the leakage position can be further sensed by measuring the regression correction of the conduction resistance to simplify the configuration of the leakage detection sensor in the complex switching pipeline and effectively integrate the leakage detection application.

[0079] The present application can be modified by those skilled in the art without departing from the scope of the appended claims.

Claims

1. A leak detection sensor configured to detect a leakage fluid overflowing from a junction, wherein the leak detection sensor comprises: a first conductor layer comprising a first surface and a second surface opposite to each other, and at least one first through hole penetrating the first surface and the second surface, wherein the junction is located outside the first surface, and the at least one first through hole is disposed adjacent to the junction; an insulator disposed on the second surface and comprising at least one second through hole, the at least one second through hole and the at least one first through hole being in communication with each other; and a second conductor layer connected to the second surface of the first conductor layer through the insulator and comprising at least one contact surface in communication with the at least one junction through the at least one second through hole and the at least one first through hole; wherein the first conductor layer and the second conductor layer are insulated from each other by the insulator, when the leakage fluid overflows into the at least one first through hole and the at least one second through hole and contacts the at least one contact surface, the second conductor layer is conducted to the first conductor layer, and a conduction resistance value is formed; the first conductor layer comprises at least one first alignment hole, the insulator comprises at least one second alignment hole, and the second conductor layer comprises at least one third alignment hole, the at least one first alignment hole, the at least one second alignment hole, and the at least one third alignment hole are spatially opposite and in communication with each other, configured to allow at least one alignment post to sequentially penetrate the at least one third alignment hole, the at least one second alignment hole, and the at least one first alignment hole, so that the second conductor layer, the insulator, and the first conductor layer are stacked.

2. The leak detection sensor of claim 1, further comprising a first lead wire and a second lead wire electrically connected to the first conductor layer and the second conductor layer, respectively.

3. The leak detection sensor of claim 2, further comprising a sensor electrically connected to the first conductor layer and the second conductor layer through the first lead wire and the second lead wire, respectively, configured to measure the conduction resistance value when the leakage fluid overflows into the at least one first through hole and the at least one second through hole and contacts the at least one contact surface.

4. The leak detection sensor of claim 1, wherein the first conductor layer and the second conductor layer have a potential difference.

5. The leak detection sensor of claim 1, wherein the at least one first through hole comprises a plurality of first through holes, the at least one second through hole comprises a plurality of second through holes, the plurality of first through holes correspond to the plurality of second through holes, respectively, and are disposed adjacent to an outer periphery of the junction.

6. A leak detection system comprising: at least one adapter connected to a pipeline to form at least one junction; and a leak detection sensor disposed adjacent to the at least one junction and configured to detect a leakage fluid overflowing from the at least one junction, wherein the leak detection sensor comprises: a first conductor layer comprising a first surface and a second surface opposite to each other, and at least one first through hole penetrating the first surface and the second surface, wherein the junction is located outside the first surface, and the at least one first through hole is disposed adjacent to the at least one junction; ​ an insulator disposed on the second surface and comprising at least one second through-hole, the at least one second through-hole being in communication with the at least one first through-hole; and a second conductor layer connected to the second surface of the first conductor layer through the insulator and comprising at least one conducting surface being in communication with the at least one transition through the at least one second through-hole and the at least one first through-hole; wherein the first conductor layer and the second conductor layer are insulated from each other through the insulator, when the leakage liquid overflows into the at least one first through-hole and the at least one second through-hole and contacts the at least one conducting surface, the second conductor layer is conducted to the first conductor layer and forms a conduction resistance value. wherein the pipe comprises at least one positioning post adjacent to the at least one transition, wherein the first conductor layer comprises at least one first positioning hole, the insulator comprises at least one second positioning hole, and the second conductor layer comprises at least one third positioning hole, the at least one first positioning hole, the at least one second positioning hole, and the at least one third positioning hole are spatially opposite and in communication with each other, and are configured to allow the at least one positioning post to sequentially pass through the at least one third positioning hole, the at least one second positioning hole, and the at least one first positioning hole, so that the second conductor layer, the insulator, and the first conductor layer are stacked on the pipe.

7. The leakage detection system of claim 6, wherein the leakage detection sensor is disposed along the pipe and attached to an outer periphery of the pipe, and the at least one transition is led out from the outer periphery of the pipe.

8. The leakage detection system of claim 6, wherein the first conductor layer comprises at least one first opening, the insulator comprises at least one second opening, and the second conductor layer comprises at least one third opening, the at least one first opening, the at least one second opening, and the at least one third opening are spatially opposite to the at least one transition, and the at least one transition sequentially passes through the at least one third opening, the at least one second opening, and the at least one first opening, so that the at least one transition is located outside the first surface, and the at least one first through-hole is disposed adjacent to the at least one transition.

9. The leakage detection system of claim 8, wherein the pipe comprises at least one locking member and at least one locking hole, which are spatially opposite to each other, wherein the first conductor layer comprises at least one first clamping portion, the insulator comprises at least one second clamping portion, and the second conductor layer comprises at least one third clamping portion, the at least one first clamping portion, the at least one second clamping portion, and the at least one third clamping portion are spatially opposite to the at least one locking hole, and when the at least one locking member and the at least one locking hole are engaged, the at least one first clamping portion, the at least one second clamping portion, and the at least one third clamping portion are clamped, so that the second conductor layer, the insulator, and the first conductor layer are stacked and fixed on the pipe.

10. The leakage detection system of claim 6, wherein the pipe extends along a direction and has a first end and a second end opposite to each other, and the leakage detection sensor further comprises a first lead wire and a second lead wire disposed at the first end of the pipe and electrically connected to the first conductor layer and the second conductor layer, respectively.

11. The leak detection system of claim 10, wherein the at least one adapter comprises a first adapter and a second adapter arranged along the direction, the second adapter being farther from the first end than the first adapter, wherein the conductive resistance value corresponding to the leakage fluid overflowing at the second adapter is greater than the conductive resistance value corresponding to the leakage fluid overflowing at the first adapter.

12. The leak detection system of claim 6, wherein the at least one adapter is led out from an end of the pipe, the leak detection sensor is arranged along the pipe and covers the at least one adapter.

13. The leak detection system of claim 6, wherein the first surface of the first conductor layer covers the at least one adapter, the insulator is covered on the second surface of the first conductor layer, and the second conductor layer is covered outside the insulator.

14. The leak detection system of claim 13, further comprising a housing sleeve detachably arranged on the pipe and covering the leak detection sensor and the at least one adapter.

15. The leak detection system of claim 14, wherein the housing sleeve further comprises at least one positioning post arranged on an inner wall surface of the housing sleeve, wherein the first conductor layer comprises at least one first positioning hole, the insulator comprises at least one second positioning hole, and the second conductor layer comprises at least one third positioning hole, the at least one first positioning hole, the at least one second positioning hole and the at least one third positioning hole are spatially opposite and connected to each other, and when the housing sleeve covers the leak detection sensor and the at least one adapter, the at least one positioning post sequentially penetrates the corresponding at least one third positioning hole, the at least one second positioning hole and the at least one first positioning hole.

16. The leak detection system of claim 6, wherein the leak detection sensor further comprises a sensor electrically connected to the first conductor layer and the second conductor layer respectively, and when the leakage fluid overflows the at least one first through hole and the at least one second through hole and contacts the at least one contact surface, the sensor is configured to measure the conductive resistance value.

17. The leak detection system of claim 6, wherein the first conductor layer and the second conductor layer are electrically connected to different potentials respectively.

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