TWI806215B - Leak detection sensor and leak detection system using same - Google Patents

Abstract

The present invention provides a leak detection sensor configured to detect a leaking liquid spilled from a coupling position adjacent to an adapter, and including a first conductive layer, an insulator and a second conductive layer. The first conductive layer includes a first through hole penetrating through a first surface and a second surface opposite to each other. The position adjacent to the adapter is located outside the first surface and adjacent to the first through hole. The insulator is disposed on the second surface of the first conductive layer, and includes a second through hole in fluid communication with the first through hole. The second conductive layer is connected to the second surface of the first conductive layer through the insulator, and includes a conductive surface in fluid communication with the coupling position adjacent to the adapter through the second through hole and the first through hole. The first conductive layer and the second conductive layer are insulated from each other through the insulator. When the leaking liquid is spilled into the first through hole and the second through hole, and contacts the conductive surface, the second conductive layer is conducted to the first conductive layer to form a conductive-resistance value.

Description

Leak detection sensor and its applicable leak detection system

This case is about a leak detection sensor, especially a leak detection sensor at the junction of a liquid pipeline and its applicable leak detection system. The detection of leaked liquid is realized through the detection mode of the on-resistance.

Liquid pipeline leak detection has been widely used in large pipelines such as water pipelines, liquid chemicals, and petroleum pipelines. In the process of transporting tap water, liquid chemicals and oil products, the joints of equipment, pipelines, valves and flanges are under pressure for a long time, which may cause leakage of liquid, which may cause casualties or property losses . The traditional leak detection method usually determines whether there is a leak in the pipeline by detecting whether the pressure variation in the pipeline is abnormal. However, this detection method is only suitable for long-length and large-diameter delivery pipelines, and it is impossible to grasp the location of the leakage. In addition, in the interpretation of abnormalities, the assistance of instruments is more needed to accurately determine the possibility of leakage.

In view of this, it is necessary to provide a leak detection sensor and an applicable leak detection system. The detection mode of the on-resistance replaces the traditional detection method of the pressure change in the pipe to improve the sensitivity of the leakage liquid trigger sensor, which is suitable for the circuit with a more complex circuit, and can be filled with possible leakage in a segmented form At the transfer point, accurately grasp the leaked blocks to solve the lack of conventional technology.

The purpose of this case is to provide a leak detection sensor and its applicable leak detection system. The detection mode of the on-resistance replaces the traditional detection method of the pressure change in the pipe to improve the sensitivity of the leakage liquid trigger sensor, which is suitable for the circuit with a more complex circuit, and can be filled with possible leakage in a segmented form At the transfer point, accurately grasp the leaked blocks.

Another object of this case is to provide a leak detection sensor and its applicable leak detection system. The leak detection sensor is designed with a sandwich sandwich structure, the upper and lower conductor layers, and the middle is an insulator, and the upper and lower conductor layers will be energized first. Since the upper conductor layer and the intermediate insulator are designed with multiple holes, the leakage liquid can flow to the lower conductor layer. When the leaked liquid passes through the hole and makes the upper conductor layer and the lower conductor layer form an on-resistance, the sensor can be triggered. Compared with the traditional detection method of pressure change in the pipe, the leakage detection sensor in this case has a sensitive sensing ability. Whenever there is a leakage of liquid, even a small amount of leakage can still trigger the detection immediately, find the location of the leakage and do follow-up Disposal to avoid personal injury or property loss caused by a large amount of leaking liquid.

Another object of this case is to provide a leak detection sensor and its applicable leak detection system. The sandwich sandwich structure design can be used in a wide range of applications. According to the environment of different transitions, the leak detection sensor can be laid flat or sandwiched. In the application of leak detection at the junction of multiple arrays, the location of the leak can be further sensed by measuring the regression correction of the on-resistance, which simplifies the configuration of the leak detection sensor in the complex junction pipeline, and efficiently Integrated leak detection applications.

To achieve the aforementioned purpose, the present application provides a leak detection sensor, which is assembled to detect a leaked liquid overflowing from a transition place. 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 runs through 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 connected to the second surface. The transitions are set adjacently. The insulator is disposed on the second surface and includes at least one second through hole, and the at least one second through hole communicates with the at least one first through hole. The second conductor layer is connected to the second surface of the first conductor layer through the insulator, and includes at least one conducting surface connected to the transition through at least one second through hole and 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 first through hole and the second through hole and contacts at least one conductive surface, the second conductor layer conducts to the first conductor layer, and form an on-resistance value.

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

In one embodiment, the leak detection sensor further includes a sensor, which is electrically connected to the first conductor layer and the second conductor layer through the first wire and the second wire respectively, and when the leakage liquid overflows to the first through hole and When the second through hole is in contact with at least one conductive surface, the on-resistance value is measured in combination.

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

In one embodiment, at least one first through hole includes a plurality of first through holes, at least one second through hole includes a plurality of second through holes, and the plurality of first through holes correspond to the plurality of second through holes respectively, And adjacent to the outer periphery of the transition.

To achieve the aforementioned purpose, the present application further provides a leak detection system including at least one adapter and a leak detection sensor. At least one transition joint is connected to a pipeline to form at least one transition point. A leak detection sensor, located adjacent to at least one junction, configured to detect a leaked liquid overflowing from at least one junction, 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 runs through 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 connected to the second surface. The transitions are set adjacently. The insulator is disposed on the second surface and includes at least one second through hole, and the at least one second through hole communicates with the at least one first through hole. The second conductor layer is connected to the second surface of the first conductor layer through the insulator, and includes at least one conducting surface connected to the transition through at least one second through hole and 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 the first through hole and the second through hole and contacts at least one conductive surface, the second conductor layer conducts to the first conductor layer , and form an on-resistance value.

In one embodiment, the leak detection sensor is arranged along the pipeline and adhered to the outer peripheral edge of the pipeline, and at least one adapter is led out from the outer peripheral edge of the pipeline.

In one embodiment, the first conductor layer includes at least one first opening, the insulator includes at least one second opening, the second conductor layer includes at least one third opening, at least one first opening, at least one second opening and at least one The third opening is spatially opposite to the at least one adapter, and the at least one adapter passes through the at least one third opening, at least one second opening and at least one first opening in sequence, so that the adapter is located outside the first surface , and at least one first through hole is adjacent to the junction.

In one embodiment, the pipeline includes at least one positioning column adjacent to at least one adapter, wherein the first conductor layer includes at least one first alignment hole, the insulator includes at least one second alignment hole, and the second conductor layer includes at least one alignment hole. The layer includes at least one third alignment hole, at least one first alignment hole, at least one second alignment hole, and at least one third alignment hole are spatially opposite and communicated with each other, and are assembled for at least one positioning column in sequence Through at least one third alignment hole, at least one second alignment hole and at least one first alignment hole, the second conductor layer, the insulator and the first conductor layer are stacked on the pipeline.

In one embodiment, the pipeline includes at least one locking member and at least one locking hole, which are spatially opposite to each other, wherein the first conductor layer includes at least one first clamping portion, and the insulator includes at least one second clamping portion, The second conductor layer includes at least one third clamping portion, at least one first clamping portion, at least one second clamping portion and at least one third clamping portion are spaced relative to at least one locking hole, at least one of which When the fastener is engaged with at least one locking hole, it clamps at least one first clamping part, at least one second clamping part and at least one third clamping part, so that the second conductor layer, the insulator and the first conductor layer are stacked fixed on the pipeline.

In one embodiment, the pipeline extends along a direction and has a first end and a second end opposite to each other. The leak detection sensor further includes a first wire and a second wire, which are arranged at the first end of the pipeline. one end, and are respectively electrically connected to the first conductor layer and the second conductor layer.

In one embodiment, at least one adapter includes a first adapter and a second adapter arranged along the direction of the pipeline, the distance from the second adapter to the first end is greater than that of the first adapter The distance to the first end, wherein the conduction resistance value corresponding to the overflow of the leakage liquid in the second adapter is greater than the conduction resistance value corresponding to the overflow of the leakage liquid in the first adapter.

In one embodiment, at least one adapter is led out from one end of the pipeline, and the leak detection sensor is arranged along the pipeline and covers the at least one adapter.

In one embodiment, the first surface of the first conductor layer covers at least one junction, the insulator covers the second surface of the first conductor layer, and the second conductor layer covers the insulator.

In one embodiment, the leak detection system further includes a housing, which is detachably disposed on the pipeline and covers the leak detection sensor and at least one adapter.

In one embodiment, the outer shell further includes at least one positioning column, which is arranged on the inner wall of the outer shell, wherein the first conductor layer includes at least one first alignment hole, the insulator includes at least one second alignment hole, and the second conductor The layer includes at least one third alignment hole, at least one first alignment hole, at least one second alignment hole and at least one third alignment hole are spatially opposite to each other and communicated with each other, and the outer casing covers the leakage detection sensor When connecting the connector and at least one adapter, at least one positioning column passes through the corresponding at least one third alignment hole, at least one second alignment hole and at least one first alignment hole in sequence.

In one embodiment, the leak detection sensor further includes a sensor electrically connected to the first conductor layer and the second conductor layer respectively, when the leakage liquid overflows to the first through hole and the second through hole and communicates with at least one When the conductive surfaces are in contact, measure the on-resistance value of the assembly.

In one embodiment, the first conductor layer and the second conductor layer are respectively electrically connected to different potentials.

Some typical embodiments embodying the features and advantages of the present application will be described in detail in the description in the following paragraphs. It should be understood that this case can have various changes in different aspects without departing from the scope of this case, and the descriptions and drawings therein are used as illustrations in nature rather than limiting this case. For example, if the following content of the present disclosure describes that a first feature is disposed on or above a second feature, it means that it includes an embodiment in which the above-mentioned first feature and the above-mentioned second feature are in direct contact, Embodiments in which additional features may be disposed between the above-mentioned first feature and the above-mentioned second feature, so that the above-mentioned first feature and the above-mentioned second feature may not be in direct contact are also included. In addition, different embodiments in the present disclosure may use repeated reference symbols and/or symbols. These repetitions are for the purpose of simplification and clarity, and are not intended to limit the relationship between various embodiments and/or the described appearance structures. Furthermore, in order to facilitate the description of the relationship between a component or feature part and another (plural) component or (plural) feature part in the drawings, spatial relative terms may be used, such as "below", "under", "Lower", "Above", "Upper" and similar expressions. 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 device may be otherwise positioned (eg, rotated 90 degrees or at other orientations) and the description of the spatially relative terminology used be interpreted accordingly. Also, when a component is referred to as being "connected" or "coupled" to another component, it can be directly connected or coupled to the other component or intervening components may be present. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the disclosure are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. In addition, it can be understood that although terms such as "first", "second", and "third" may be used in the claims to describe different components, these components should not be limited by these terms , these components correspondingly described in the embodiments are represented by different component symbols. These terms are used to distinguish between different components. For example, a first component may be called a second component, and similarly, a second component may also be called a first component without departing from the scope of the embodiments.

Fig. 1 is a diagram showing the appearance and structure of the leak detection system of the first preferred embodiment of the present case. Fig. 2 is an exploded view showing the structure of the leak detection system of the first preferred embodiment of the present case. Fig. 3 is an exploded view showing the structure of the leak detection sensor of the first preferred embodiment of the present case. Fig. 4A and Fig. 4B show an example of the leakage detection system detecting the overflow leakage liquid in the first preferred embodiment of the present case. In this embodiment, the leak detection system 1 includes at least one adapter and a leak detection sensor 2 . The leak detection sensor 2 is arranged along a pipeline 11 , for example, laid horizontally along the X-axis direction, and attached to the outer periphery of the pipeline 11 . At least one adapter is led out from the outer peripheral edge of the pipeline 11 , such as in the Z-axis direction. It should be noted that, in this embodiment, at least one adapter is, for example, any one of the first adapter 10a, the second adapter 10b, and the third adapter 10c. The number of devices 2 can be adjusted according to actual application requirements, and this case is not limited thereto. In this embodiment, the first adapter 10a, the second adapter 10b and the third adapter 10c are respectively connected to a pipeline 11 to form three adapters. The leak detection sensor 2 is adjacent to the three transitions formed by the first transition joint 10a, the second transition joint 10b, and the third transition joint 10c, and is configured to detect overflow from any transition joint. A leak of liquid9. In this embodiment, the leak detection sensor 2 includes a first conductor layer 21 , an insulator 22 and a second conductor layer 23 . The first conductive layer 21 includes a first surface 21 a and a second surface 21 b opposite to each other. Corresponding to the first adapter 10a, the first conductive layer 21 includes a first opening 211a and at least one first through hole 212a passing through the first surface 21a and the second surface 21b. The first transition 10a passes through the first opening 211a, the transition formed by the first transition 10a is located outside the first surface 21a of the first conductor layer 21, and at least one first through hole 212a is connected to the first transition. The junctions formed by 10a are arranged adjacently. The insulator 22 is disposed on the second surface 21b of the first conductor layer 21 and corresponds to the first adapter 10a, and includes 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 communicates with the at least one corresponding first through hole 212a. The second conductor layer 23 is connected to the second surface 21 b of the first conductor layer 21 through the insulator 22 , and includes a third opening 231 a and at least one conducting surface 230 . The first adapter 10a passes through the third opening 231a, and at least one guide surface 230 communicates with the first adapter 10a through the corresponding at least one second through hole 222a and at least one first through hole 212a to connect to the pipeline 11. the transfer point. In other embodiments, an opening (not shown) is further provided on the conducting surface 230, corresponding to the second through hole 222a and the first through hole 212a, that is, the conducting surface 230 further extends to the inner wall of the opening, and Through the corresponding second through hole 222a and the first through hole 212a, it communicates with the transition formed by connecting the pipeline 11 to the first transition joint 10a. Of course, this case is not limited to this. Corresponding to the second adapter 10b, the first conductive layer 21 includes a first opening 211b and at least one first through hole 212b passing through the first surface 21a and the second surface 21b. The second transition 10b passes through the first opening 211b, the transition formed by the second transition 10b is located outside the first surface 21a of the first conductor layer 21, and at least one first through hole 212b is connected to the second transition. The junctions formed by 10b are arranged adjacently. The insulator 22 includes a second opening 221b and at least one second through hole 222b corresponding to the second adapter 10b. The second adapter 10b passes through the second opening 221b, and the at least one second through hole 222b communicates with the at least one corresponding first through hole 212b. The second adapter 10b passes through the third opening 231b, and at least one guide surface 230 is connected to the second adapter 10b through the corresponding at least one second through hole 222b and at least one first through hole 212b to connect to the pipeline 11. the transfer point. In other embodiments, an opening (not shown) is further provided on the conducting surface 230, corresponding to the second through hole 222b and the first through hole 212b, that is, the conducting surface 230 further extends to the inner wall of the opening, and Through the corresponding second through hole 222b and the first through hole 212b, it communicates with the transition formed by connecting the pipeline 11 with the second adapter 10b. Of course, this case is not limited to this. Similarly, the third adapter 10c passes through the corresponding third opening 231c on the second conductor layer 23, the second opening 221c on the insulator 22 and the first opening 211c on the first conductor layer 21 in sequence, so that the third The transition formed by connecting the transition joint 10c to the pipeline 11 is located outside the first surface 21a and 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 this case 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 hole, and the ring is arranged on the outer circumference of the corresponding transition. The case is not so limited.

In this embodiment, the first conductor layer 21 and the second conductor layer 23 are insulated from each other through the insulator 22 . The leak detection sensor 2 further includes a first wire 24 , a second wire 25 and a sensor (not shown). The first wire 24 and the second wire 25 are, for example, disposed at the first end 11 a of the pipeline 11 . The sensor is electrically connected to the first conductor layer 21 and the second conductor layer 23 through the first wire 24 and the second wire 25 respectively. The first conductor layer 21 and the second conductor layer 23 are further kept electrified, for example, they are electrically connected to different potentials respectively, that is, there is a potential difference between the first conductor layer 21 and the second conductor layer 23, so as to realize 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 with the guide surface 230, the sensor can The conduction resistance formed between the second conductor layer 23 and the first conductor layer 21 is measured, as shown in FIG. 4A . 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 with the guide surface 230, the sensor will The conduction resistance formed between the second conductor layer 23 and the first conductor layer 21 can be measured, as shown in FIG. 4B . In other words, the leakage detection sensor 2 is designed with a sandwich structure, the upper and lower first conductor layer 21 and the second conductor layer 23 are conductors, and the middle is an insulator 22, wherein the first conductor layer 21 and the second conductor layer 23 will be energized first . Since the upper first conductor layer 23 and the intermediate insulator 22 are designed with a plurality of through holes, the leakage liquid 9 can flow to the conducting surface 230 of the second conductor layer 23, so that the first conductor layer 21 and the second conductor layer 23 form a Turn on the resistance value to trigger the sensor. Compared with the traditional detection method of pressure change in the pipe, the leak detection sensor 2 in this case has a sensitive sensing ability. Whenever there is a leakage of liquid 9, even a small amount of leakage can still trigger the detection immediately, find the location of the leak and make a decision. Subsequent processing avoids casualties or property losses caused by a large amount of leakage of liquid 9.

In addition, it should be noted that, in this embodiment, the pipeline 11 extends along the X-axis direction, for example, 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 kept electrically connected, 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 leakage liquid 9 The conduction resistance value corresponding to the overflow of the second adapter 10b is greater than the conduction resistance value corresponding to the overflow of the leakage liquid 9 in the first adapter 10a. Similarly, the on-resistance value corresponding to the overflow of the leakage liquid 9 in the third adapter 10c is greater than the on-resistance value corresponding to the overflow of the leakage liquid 9 in the second adapter 10b.

Figure 5 shows an application example of the leak detection system of the first preferred embodiment of the present case. See Figures 1 through 5. In this embodiment, a plurality of adapters 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k are, for example, from the first end 11a of the pipeline 11 toward the second end 11b (ie X-axis direction) are equidistantly arranged, and the leak detection sensor 2 is correspondingly arranged in the same manner as described above. It can be seen from the above that, under the condition that the first conductor layer 21 and the second conductor layer 23 are kept electrically connected, the leakage liquid 9 is in each adapter 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j , 10k overflow corresponding to the on-resistance value and the distance from the adapter 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k to the first end 11a. In other words, in the application of leak detection at the junction of multiple arrays, the location of the leak can be further sensed by the regression correction of the measured on-resistance, which simplifies the configuration of the leak detection sensor 2 in the complex transition pipeline. Efficiently integrate leak detection applications. In this embodiment, the adapters 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k are combined with a single leak detection sensor 2 for leak detection applications. In other embodiments, the adapters 10 a , 10 b , 10 c , 10 d , 10 e , 10 f , 10 g , 10 h , 10 i , 10 j , and 10 k can be segmented by a plurality of leak detection sensors 2 for leak detection applications. This case is not limited to this. By using the on-resistance detection mode to replace the traditional pipe pressure change detection method, the leakage detection sensor 2 of this case further improves the sensitivity of the leakage liquid trigger sensor, which is suitable for circuits with more complex circuits, and can be divided into The form of the segment is covered with possible leaked transitions, and the leaked blocks are accurately grasped. Of course, this case is not limited to this.

In addition, please refer to Figure 1 to Figure 3 again. In this embodiment, the pipeline 10 includes at least one positioning column 31 adjacent to one of the first adapter 10a, the second adapter 10b and the third adapter 10c. Corresponding to at least one positioning post 31 , the first conductor layer 21 includes at least one first alignment hole 213 , the insulator 22 includes at least one second alignment hole 223 , and the second conductor layer 23 includes at least one third alignment hole 232 . At least one first alignment hole 213, at least one second alignment hole 223, and at least one third alignment hole 232 are spatially opposite and communicated with each other, and are assembled for at least one positioning column 31 to pass through at least one third pair in sequence. The positioning holes 232 , at least one second positioning hole 223 and at least one first positioning hole 213 allow the second conductor layer 23 , the insulator 22 and the first conductor layer 21 to be stacked on the pipeline 11 . In this embodiment, the pipeline 11 further includes at least one locking member 32 and at least one locking hole 111 , which are spatially opposite to each other. 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 . Wherein at least one first clamping portion 214 , at least one second clamping portion 224 and at least one third clamping portion 233 are spatially opposite to at least one locking hole 111 . When at least one locking member 32 is engaged with the at least one locking hole 111, at least one first clamping portion 214, at least one second clamping portion 224 and at least one third clamping portion 233 are clamped, so that the second The conductor layer 23 , the insulator 22 and the first conductor layer 11 are stacked and fixed on the pipeline 11 . Of course, the manner in which the leakage detection sensor 2 is constructed on the pipeline 11 can be adjusted according to actual application requirements, and the present application is not limited thereto.

Fig. 6 is a diagram showing the appearance and structure of the leakage detection system of the second preferred embodiment of the present case. Fig. 7 is a schematic diagram showing the leakage sensor is exposed by dismantling the outer casing in the leakage detection system of the second preferred embodiment of the present invention. Fig. 8 is an exploded view showing part of the structure of the leak sensor in the leak detection system of the second preferred embodiment of the present case. In this embodiment, the leak detection system 1a and the leak detection sensor 2a are similar to the leak detection system 1 and the leak detection sensor 2 shown in FIGS. 1 to 5, and the same component numbers represent the same The components, structures and functions of the device will not be repeated here. In this implementation, the adapter 10 is led out from one end of the pipeline 11 and is connected to another pipeline. In this embodiment, the leak detection sensor 2 a is also designed in a sandwich structure, covering the junction formed by the adapter 10 and the pipeline 11 . The leakage detection sensor 2a is located adjacent to the joint formed by the adapter 10 and the pipeline 11, and is configured to detect a leakage liquid 9 overflowing from the joint (refer to FIG. 4A and FIG. 4B). In this embodiment, the leak detection sensor 2 a includes a first conductor layer 21 , an insulator 22 and a second conductor layer 23 . The first conductive layer 21 includes a first surface 21 a and a second surface 21 b opposite to each other, and a plurality of first through holes 212 penetrate the first surface 21 a and the second surface 21 b. The junction formed by the adapter 10 and the pipeline 11 is located outside the first surface 21a, and a plurality of first through holes 212 are adjacent to the junction. The insulator 22 is disposed on the second surface 21 b, and includes 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 21 . 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 conductive surface 230, which is connected to the adapter through the corresponding second through hole 222 and the first through hole 212. 10 and the junction formed by pipeline 11. In other embodiments, an opening (not shown) is further provided on the conducting surface 230, corresponding to the second through hole 222 and the first through hole 212, that is, the conducting surface 230 further extends to the inner wall of the opening, and Through the corresponding second through hole 222 and the first through hole 212 , it is connected to the transition formed by connecting the pipeline 11 of the adapter 10 . Of course, this case is not limited to this. In this embodiment, the first conductor layer 21 and the second conductor layer 23 are insulated from each other through the insulator 22. When the leakage liquid 9 overflows into any corresponding first through hole 212 and second through hole 222 and connects with the conductor When the surfaces 230 are in contact, the second conductor layer 23 conducts to the first conductor layer 21 to form an on-resistance value to realize the application of leakage detection.

In this embodiment, the leak detection sensor 2a adopts two sandwich sandwich structures to cover the junction formed by the adapter 10 and the pipeline 11, for example. In one embodiment, the leak detection sensor 2a is, for example, provided in a single sandwich structure adjacent to the junction formed by the adapter 10 and the pipeline 11 . In another embodiment, the leak detection sensor 2 a is sandwiched between the transition joint 10 and the pipeline 11 by a plurality of sandwich structures, for example. In other embodiments, the number and types of combinations of leak detection sensors 2a can be adjusted according to actual application requirements. Of course, this case is not limited to this. In this embodiment, the leak detection sensor 2 a also includes a first wire 24 , a second wire 25 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 wire 24 and the second wire 25 respectively. The first conductor layer 21 and the second conductor layer 23 are further kept electrified, for example, they are electrically connected to different potentials respectively, that is, there is a potential difference between the first conductor layer 21 and the second conductor layer 23, so as to realize the detection of the leakage liquid 9 . In this embodiment, the leakage detection range of the leakage detection sensor 2a is small, when the leakage liquid 9 overflows into any corresponding first through hole 212 and second through hole 222 and contacts the conductive surface 230 , the second conductor layer 23 will be connected to the first conductor layer 21 . In other embodiments, the number, size, and corresponding arrangement of the first through holes 212 and the second through holes 222 can be adjusted according to actual application requirements, and this case is not limited thereto.

On the other hand, in this embodiment, the leak detection system 1 a further includes a housing 12 that is detachably disposed on the pipeline 11 and covers the leak detection sensor 2 a and at least one adapter 10 . After the leak detection sensor 2a wraps the joint formed by the adapter 10 and the pipeline 11, the outer casing 12 covers the leak detection sensor 2a, for example, by clipping, so that the leak detection sensor 2a is securely attached. It is attached to the outer periphery of the adapter 10 and realizes leak detection at the junction formed by the adapter 10 and the pipeline 11 . By covering the leak detection sensor 2a with the shell cover 12, in addition to providing basic protection functions, it also prevents the leak detection sensor 2a from being affected by external factors, and even a small amount of leakage can still make the leak detection sensor 2a 2a triggers perception immediately. In this embodiment, the housing 12 further includes at least one positioning post 13 disposed on the inner wall of the housing 12 . Corresponding to at least one positioning post 13 on the housing 12, the first conductor layer 21 includes at least one first alignment hole 213, the insulator 22 includes at least one second alignment hole 223, and the second conductor layer 23 includes at least one third pair of alignment holes. bit hole 232 . At least one first alignment hole 213, at least one second alignment hole 223, and at least one third alignment hole 232 are spatially opposite and communicated with each other, and are assembled for at least one positioning post 13 to pass through at least one third pair in sequence. The alignment hole 232 , at least one second alignment hole 223 and at least one first alignment hole 213 . In other words, when the outer casing 12 covers the leak detection sensor 2a and at least one adapter 10, at least one positioning column 13 passes through the corresponding at least one third alignment hole 232 and at least one second alignment hole in sequence. 223 and at least one first alignment hole 213 , so that the leak detection sensor 2 a is firmly fixed on the housing 12 . During installation, the second conductor layer 23, the insulator 22 and the first conductor layer 21 first pass through the corresponding third alignment hole 232, the second alignment hole 223 and the first alignment hole through the positioning post 13 in sequence. 213 and fixed on the inner wall surface of the outer shell 12, and then through the buckle spring of the outer shell 12, the first surface 21a of the first conductor 21 is close to the adapter 10, so that the outer shell 12 and the leak detection sensor 2a are stable Covering the outer periphery of the adapter 10 , and realizing leakage detection at the junction formed by the adapter 10 and the pipeline 11 . Of course, the manner in which the outer casing 12 covers the leak detection sensor 2a and the adapter 10 is not limited thereto, and will not be repeated here.

It can be seen from the above that the sandwich structure design of the leak detection sensor 2 and the leak detection sensor 2a has a wide range of applications. For the environment of different transitions, the leak detection sensor 2 and the leak detection sensor 2a can adopt Flat lay or double-team setup. Of course, the leakage detection system 1, 1a and the leakage detection sensor 2, 2a of this case can be combined and changed according to actual application requirements.

To sum up, this case provides a leak detection sensor and its applicable leak detection system. The detection mode of the on-resistance replaces the traditional detection method of the pressure change in the pipe to improve the sensitivity of the leakage liquid trigger sensor, which is suitable for the circuit with a more complex circuit, and can be filled with possible leakage in a segmented form At the transfer point, accurately grasp the leaked blocks. In addition, the leak detection sensor is designed with a sandwich sandwich structure, the upper and lower conductor layers, and the middle is an insulator, and the upper and lower conductor layers will be energized first. Since the upper conductor layer and the intermediate insulator are designed with multiple holes, the leakage liquid can flow to the lower conductor layer. When the leaked liquid passes through the hole and makes the upper conductor layer and the lower conductor layer form an on-resistance, the sensor can be triggered. Compared with the traditional detection method of pressure change in the pipe, the leakage detection sensor in this case has a sensitive sensing ability. Whenever there is a leakage of liquid, even a small amount of leakage can still trigger the detection immediately, find the location of the leakage and do follow-up Disposal to avoid personal injury or property loss caused by a large amount of leaking liquid. Furthermore, the sandwich sandwich structure design can be used in a wide range of applications. According to the environment of different transitions, the leak detection sensor can be laid flat or sandwiched. In the application of leak detection at the junction of multiple arrays, the location of the leak can be further sensed by measuring the regression correction of the on-resistance, which simplifies the configuration of the leak detection sensor in the complex junction pipeline, and efficiently Integrated leak detection applications.

This case can be modified in various ways by people who are familiar with this technology, but it does not deviate from the intended protection of the scope of the attached patent application.

1, 1a: Leak detection system 10, 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k: Adapter 11: pipeline 11a: first end 11b: second end 111: Locking hole 12: Outer shell 13: positioning column 2, 2a: Leak detection sensor 21: The first conductor layer 21a: first surface 21b: second surface 211a, 211b, 211c: first opening 212, 212a, 212b, 212c: first through hole 213: The first alignment hole 214: The first clamping part 22: Insulator 221a, 221b, 221c: second opening 222, 222a, 222b, 222c: second through holes 223: Second alignment hole 224: Second clamping part 23: Second conductor layer 230: Lead surface 231a, 231b, 231c: third opening 232: The third alignment hole 233: The third clamping part 24: First wire 25: Second wire 31: positioning column 32: Locking piece 9: Leaking liquid X, Y, Z: axis

Fig. 1 is a diagram showing the appearance and structure of the leak detection system of the first preferred embodiment of the present case. Fig. 2 is an exploded view showing the structure of the leak detection system of the first preferred embodiment of the present case. Fig. 3 is an exploded view showing the structure of the leak detection sensor of the first preferred embodiment of the present case. Fig. 4A shows an example of the leakage detection system detecting the overflow leakage liquid in the first preferred embodiment of the present application. Figure 4B shows another example of the leakage detection system in the first preferred embodiment of the present case detecting overflow leakage liquid. Figure 5 shows an application example of the leak detection system of the first preferred embodiment of the present case. Fig. 6 is a diagram showing the appearance and structure of the leakage detection system of the second preferred embodiment of the present case. Fig. 7 is a schematic diagram showing the leakage sensor is exposed by dismantling the outer casing in the leakage detection system of the second preferred embodiment of the present invention. Fig. 8 is an exploded view showing part of the structure of the leak sensor in the leak detection system of the second preferred embodiment of the present case.

1: Leak detection sensor 10a, 10b, 10c: Adapter 11: pipeline 111: Locking hole 2: Leak detection sensor 21: The first conductor layer 21a: first surface 21b: second surface 211a, 211b, 211c: first opening 212a, 212b, 212c: first through holes 213: The first alignment hole 214: The first clamping part 22: Insulator 221a, 221b, 221c: second opening 222a, 222b, 222c: second through holes 223: Second alignment hole 224: Second clamping part 23: Second conductor layer 230: Lead surface 232: The third alignment hole 233: The third clamping part 24: First wire 25: Second wire 31: positioning column 32: Locking piece X, Y, Z: axis

Claims (17)

A leak detection sensor is assembled to detect a leaking liquid overflowing from a junction, and the transition is formed by connecting at least one adapter to a pipeline, wherein the leak detection sensor includes : a first conductor layer, including a first surface and a second surface opposite to each other, and at least one first through hole passing through 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 is disposed on the second surface and includes at least one second through hole, and the at least one second through hole is connected to the at least one first through hole The through holes communicate with each other; and a second conductor layer connected to the second surface of the first conductor layer through the insulator, and includes at least one conducting surface passing through the at least one second through hole and the at least one first through hole holes to connect to the at least one junction; wherein the first conductor layer and the second conductor layer are insulated from each other through the insulator, when the leakage liquid overflows to the at least one first through hole and the at least one second through hole When in the hole and in contact with the at least one conductive surface, the second conductor layer conducts to the first conductor layer and forms an on-resistance value, wherein the first conductor layer includes at least one first opening, and the insulator includes at least one second opening, 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 relative to the at least one adapter, The at least one transition joint passes through the at least one third opening, the at least one second opening and the at least one first opening in sequence, so that the at least one transition is located outside the first surface, and the at least one first The through hole is arranged adjacent to the at least one junction. The leak detection sensor as claimed in claim 1 further includes a first wire and a second wire electrically connected to the first conductor layer and the second conductor layer respectively. The leak detection sensor as described in claim 2 further includes a sensor, which is electrically connected to the first conductor layer and the second conductor layer through the first wire and the second wire respectively, and when the leakage liquid overflows When the flow reaches the at least one first through hole and the at least one second through hole and is in contact with the at least one conductive surface, the on-resistance value is measured in combination. The leak detection sensor as claimed in claim 1, wherein the first conductor layer and the second conductor layer have a potential difference. The leak detection sensor as described in claim 1, wherein the at least one first through hole includes a plurality of first through holes, the at least one second through hole includes a plurality of second through holes, and the plurality of first through holes The holes respectively correspond to the plurality of second through holes, and are adjacent to an outer periphery of the transition. A leak detection system, comprising: at least one adapter, connected to a pipeline to form at least one adapter; and a leak detection sensor, adjacent to the at least one adapter, assembled to detect from A leaking liquid overflowing from the at least one transition place, wherein the leak detection sensor includes: a first conductor layer including a first surface and a second surface opposite to each other, and at least one first through hole penetrating through The first surface and the second surface, wherein the at least transition is located outside the first surface, and the at least one first through hole is adjacent to the at least one transition; an insulator is disposed on the second surface, and includes at least one second through hole, the at least one second through hole communicates with the at least one first through hole; and a second conductor layer connected to the second conductor layer of the first conductor layer through the insulator surface, and includes at least one conductive surface connected to 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 pass through the insulator are insulated from each other, and 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 conductive surface, the second conductor layer conducts to the first conductor layer, And form an on-resistance value, where the first A conductor layer includes at least one first opening, the insulator includes at least one second opening, 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 The opening is spatially relative to the at least one adapter, and the at least one adapter passes through the at least one third opening, the at least one second opening and the at least one first opening in sequence, so that the at least one adapter It is located outside the first surface, and the at least one first through hole is adjacent to the at least one transition. The leak detection system as claimed in claim 6, wherein the leak detection sensor is arranged along the pipeline and is attached to an outer periphery of the pipeline, and the at least one adapter is connected from the outer periphery of the pipeline edge export. The leakage detection system as claimed in item 6, wherein the pipeline includes at least one positioning column, which is adjacent to the at least one adapter, wherein the first conductor layer includes at least one first alignment hole, and the insulator includes At least one second alignment hole, the second conductor layer includes 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 in a space are opposite to and communicated with each other, and are assembled so that the at least one positioning column passes through the at least one third alignment hole, the at least one second alignment hole and the at least one first alignment hole in sequence, so that the second conductor layer , the insulator and the first conductor layer are stacked on the pipeline. The leakage detection system as claimed in claim 6, wherein the pipeline includes at least one locking member and at least one locking hole, which are spatially opposite to each other, wherein the first conductor layer includes at least one first clamping portion, the The insulator includes at least one second clamping portion, 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 Spatially relative to the at least one locking hole, wherein when the at least one locking member engages with the at least one locking hole, clamp the at least one first clamping portion, the at least one second clamping portion and the at least one A third clamping part makes the second conductor layer, the insulator and the first conductor layer stacked and fixed on the pipeline. The leak detection system as claimed in item 6, wherein the pipeline extends along a direction and has a first end and a second end opposite to each other, and the leak detection sensor further includes a first wire and A second wire is arranged at the first end of the pipeline and electrically connected to the first conductor layer and the second conductor layer respectively. The leakage detection system as claimed in item 10, wherein the at least one adapter includes a first adapter and a second adapter arranged along the direction, the second adapter to the first end The distance is greater than the distance from the first adapter to the first end, wherein the conduction resistance value corresponding to the overflow of the leakage liquid in the second adapter is greater than that of the leakage liquid in the first adapter The on-resistance value corresponding to the overflow. The leak detection system according to claim 6, wherein the at least one adapter is led out from one end of the pipeline, and the leak detection sensor is arranged along the pipeline and covers the at least one adapter. The leak detection system as claimed in claim 6, wherein the first surface of the first conductor layer covers the at least one junction, the insulator covers the second surface of the first conductor layer, the first The two conductor layers are wrapped on the insulator. The leak detection system according to claim 13 further includes a housing, which is detachably arranged on the pipeline and covers the leak detection sensor and the at least one adapter. The leak detection system as described in claim 14, wherein the outer casing further includes at least one positioning post disposed on an inner wall of the outer casing, wherein the first conductor layer includes at least one first alignment hole, and the insulator including at least one second alignment hole, the second conductor layer includes 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 Spatially opposite and communicated with each other, when the outer casing wraps the leak detection sensor and the at least one adapter, the at least one positioning post sequentially passes through the corresponding at least one third alignment hole, the at least one A second alignment hole and the at least one first alignment hole. The leak detection system as described in claim 6, wherein the leak detection sensor further includes a sensor electrically connected to the first conductor layer and the second conductor layer respectively, when the leakage liquid overflows When the at least one first through hole is in contact with the at least one second through hole and the at least one conductive surface, the on-resistance value is measured in combination. The leakage detection system as claimed in claim 6, wherein the first conductor layer and the second conductor layer are respectively electrically connected to different potentials.

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