CN221527913U - Leakage detection device - Google Patents

Abstract

The application provides a leakage detection device, which comprises a first electrode layer, a seepage layer and a second electrode layer, wherein the first electrode layer, the seepage layer and the second electrode layer are sequentially stacked, and the first electrode layer is configured to be opposite to a leakage liquid surface when working; or the seepage and absorption layer and the second electrode layer are stacked, the first electrode layer is arranged in the seepage and absorption layer, and the seepage and absorption layer is configured to be opposite to the liquid leakage surface when working; the seepage and absorption layer is used for absorbing leakage liquid, and the first electrode layer and the second electrode layer are conducted when the quantity of the absorbed leakage liquid is larger than the conduction threshold value. The leakage detection device provided by the application can be timely found when the leakage amount of the liquid chemical is very small, and the leakage detection area can be fully covered with the detection device, so that the occurrence of production safety accidents can be greatly avoided, the risk hidden danger in production is reduced, and the health and personal safety of staff are ensured.

Description

Leakage detection device

Technical Field

The application relates to the technical field of leakage detection, in particular to a leakage detection device.

Background

In industrial production involving the use of liquid chemicals, safety accidents often occur if leakage of the liquid chemicals occurs. Especially, dangerous chemical leakage can lead to production safety accidents such as fire, explosion, poisoning, corrosion, environmental pollution, occupational disease hazard and the like, and brings great risk hidden danger to the safe production of enterprises and the occupational health of staff. In addition, the leakage detection probe in the prior art often has dead angles, and cannot cover the detection device completely. Still other leak detection devices can detect only when a leak passes through the leak detection device, so that a small amount of leak cannot be detected, and the shape is difficult to change.

Therefore, there is a need for a leakage detection device for solving the problems that the leakage detection device is difficult to find in time when the leakage amount of liquid chemicals is small, and the leakage detection range cannot be fully covered.

Disclosure of utility model

The embodiment of the application provides a leakage detection device, which comprises a first electrode layer, a seepage and absorption layer and a second electrode layer; the first electrode layer, the seepage layer and the second electrode layer are sequentially stacked, and the first electrode layer is configured to be opposite to the liquid leakage surface when working; or the imbibition layer and the second electrode layer are stacked, the first electrode layer is arranged in the imbibition layer, and the imbibition layer is configured to be opposite to the liquid leakage surface when working; the seepage layer is used for absorbing leakage liquid, and the first electrode layer and the second electrode layer are conducted when the quantity of the absorbed leakage liquid is larger than a conduction threshold value.

In some embodiments, the turn-on threshold is the minimum amount of leakage absorbed per square centimeter that achieves turn-on of the first electrode and the second electrode, and has a value of 0.05 milliliters per square centimeter.

In some embodiments, the first electrode layer is a mesh-structured acid and alkali corrosion resistant metallic material; the second electrode layer is made of an acid and alkali corrosion resistant metal material with a net-shaped or plate-shaped structure.

In some embodiments, the apparatus further comprises a non-metallic drain pan, the second electrode layer being disposed within the non-metallic drain pan.

In some embodiments, the imbibition layer is polypropylene.

In some embodiments, the overall shape of the leakage detection device is planar, wavy or arc-shaped.

In some embodiments, the stacked first electrode layer, the permeation layer, and the second electrode layer are further fixed by a fixing device, the fixing device comprises a first magnetic sheet and a second magnetic sheet, and the stacked first electrode layer, permeation layer, and second electrode layer are sandwiched between the first magnetic sheet and the second magnetic sheet.

In some embodiments, the first surface of the second magnetic sheet is used for fixing the first electrode layer or the imbibition layer, the second surface of the second magnetic sheet is a cambered surface, and the first surface and the second surface are two opposite surfaces of the second magnetic sheet.

In some embodiments, the electrode assembly further comprises an interface and an electrode clip, and the first electrode layer and the second electrode layer are electrically connected to the interface through the electrode clip, respectively.

In some embodiments, the interface is electrically connected to an alarm device and a power supply in series with each other, and forms an electrical signal loop with the first electrode layer, the wicking layer, and the second electrode layer.

According to the leakage detection device provided by the embodiment of the application, the first electrode layer, the seepage layer and the second electrode layer are sequentially stacked, and the first electrode layer is configured to be opposite to a leakage liquid surface when working; or the imbibition layer and the second electrode layer are stacked, the first electrode layer is arranged in the imbibition layer, and the imbibition layer is configured to be opposite to the liquid leakage surface when working; when the leakage detection device works, if leakage occurs, the imbibition layer absorbs the leakage, when the quantity of the absorbed leakage is larger than the conduction threshold value, the first electrode layer and the second electrode layer are conducted, and the first electrode layer (or the imbibition layer) is opposite to the structure of the leakage surface, so that the leakage is absorbed by the imbibition layer just when the leakage occurs, and the first electrode layer and the second electrode layer can be conducted when the leakage quantity is very small.

Drawings

The following drawings describe in detail exemplary embodiments disclosed in the present application. Wherein like reference numerals refer to like structure throughout the several views of the drawings. Those of ordinary skill in the art will understand that these embodiments are non-limiting, exemplary embodiments, and that the drawings are for illustration and description only and are not intended to limit the scope of the application, as other embodiments may equally well accomplish the inventive intent in this disclosure. It should be understood that the drawings are not to scale.

Wherein:

FIG. 1 is a schematic diagram of a leak detection apparatus according to some embodiments of the application;

FIG. 2 is a schematic view of a partial structure of the electrode layer and the wicking layer of FIG. 1;

FIG. 3 is a schematic diagram illustrating different shapes of a leakage detection device according to some embodiments of the present application;

FIG. 4 is a schematic diagram of a leak detection apparatus according to some embodiments of the application;

FIG. 5 is a schematic diagram of another leak detection apparatus according to some embodiments of the application;

FIG. 6 is a schematic diagram of a leak detection apparatus with a fixture according to some embodiments of the application.

Detailed Description

The following description provides specific applications and requirements of the application to enable any person skilled in the art to make and use the application. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the application. Thus, the present application is not limited to the embodiments shown, but is to be accorded the widest scope consistent with the claims.

In the production of liquid chemicals, pipeline joints, valves, pressurized liquid storage tanks, semiconductor machines and other easy-to-leak parts are often involved, particularly in the semiconductor industry, and pipelines in the machines can involve highly toxic chemicals such as sulfuric acid, hydrochloric acid, hydrofluoric acid and the like, so that the leakage tolerance is very low.

In order to avoid production safety accidents caused by liquid leakage, the leakage detection device can be used for detecting whether the liquid is leaked in the storage and conveying processes or not, and the problem of liquid leakage is solved in time. Further, a leakage detection device can be arranged below the positions, which are easy to leak, of the pipeline interface, the valve, the pressurized liquid storage tank, the semiconductor machine and the like, and when liquid leakage occurs, the leakage can fall into the leakage detection device to be detected so as to trigger an alarm signal, so that related personnel can be reminded of the occurrence of the leakage, and the leakage can be timely processed, and the occurrence of safety accidents can be prevented.

In some embodiments, the leakage detection device may adopt a shorting principle, that is, the leakage is in contact with the probe of the leakage detection device, so that the electrodes at two ends of the probe are conducted to form an electrical signal loop to trigger an alarm signal, however, the electrodes at two ends of the probe are in a dot shape and a rope shape, and cannot cover the detection area of the leakage detection device. The leakage detection device is easy to have detection blind areas and is limited to the position of the probe. When the area where the leakage falls into is the area outside the detection area of the leakage detection device, the leakage needs to flow to the probe position before the two ends of the electrodes are conducted to trigger the alarm signal, so that the leakage detection device cannot timely detect the leakage, and when the leakage is a liquid with a small volatile or liquid leakage amount, the leakage detection device is likely to volatilize in the flowing process or cannot flow to the detection area of the leakage detection device at all, and the leakage detection device cannot detect the leakage, so that the risk hidden danger is extremely high. Although, the detection efficiency can be generally improved by increasing the detection point density and changing the electrode shape to expand the detection range. However, the problems of untimely detection response, difficult full-disc coverage of the detection range, non-uniform standard on the wiring of the field probe and easy damage of the exposed line still exist.

In some embodiments, the probe of the leakage detection device is provided with a comb-shaped transverse electrode structure, and an alarm signal can be formed after the electrode is connected by the leakage liquid surface. However, the comb-shaped electrode structure cannot cover the liquid leakage detection device completely, so that a dead angle still exists. The comb-tooth-shaped electrode structure is difficult to adapt to various environments and has high production cost.

The embodiment of the application provides a leakage detection device, which comprises a first electrode layer, a seepage layer and a second electrode layer, wherein the first electrode layer, the seepage layer and the second electrode layer are sequentially stacked, and the first electrode layer is configured to be opposite to a leakage liquid surface when working; or the seepage and absorption layer and the second electrode layer are stacked, the first electrode layer is arranged in the seepage and absorption layer, and the seepage and absorption layer is configured to be opposite to the liquid leakage surface when working; the seepage and absorption layer is used for absorbing leakage liquid, and the first electrode layer and the second electrode layer are conducted when the quantity of the absorbed leakage liquid is larger than the conduction threshold value. The leakage detection device is of a longitudinal stacking structure, and the second electrode layer is configured as a base electrode relative to the first electrode layer which is configured to face the leakage liquid surface during operation. The first electrode layer and the second electrode layer are made of permeable materials for absorbing leakage, the conduction threshold is the minimum leakage amount absorbed per square centimeter for realizing conduction of the first electrode and the second electrode, and the value is 0.05 milliliter/square centimeter, so that only a small amount of leakage liquid can be detected by falling on any part of the leakage liquid detection device, and an alarm signal is triggered.

Therefore, the leakage detection device of the present application can be divided into two cases, the first is a leakage detection device in which a first electrode layer, a seepage layer and a second electrode layer are stacked in order; the second type is a stacked arrangement of a seepage layer and a second electrode layer, and the first electrode layer is arranged in the seepage layer for detecting liquid leakage.

Fig. 1 is a schematic diagram of a leak detection apparatus according to some embodiments of the application.

Fig. 2 is a schematic partial structure of the first electrode layer 1 and the imbibition layer 2 in fig. 1. Referring to fig. 1, it can be seen that the first leakage detecting device includes a first electrode layer 1 (e.g., an electrode sheet), a imbibition layer 2 and a second electrode layer 3 (e.g., an electrode sheet) stacked in sequence, where the first electrode layer 1, the imbibition layer 2 and the second electrode layer 3 may be stacked and connected or fixed by using a bonding, insulating nail, a clip, etc., so long as the first electrode layer 1 and the second electrode layer 3 are in close contact with the imbibition layer 2 sandwiched therebetween. Among them, the material of the first electrode layer 1 is required to have good permeability, corrosion resistance, good electrical conductivity, and to be used as an electrode. The first electrode layer 1 is thus made of a metal material resistant to acid and alkali corrosion in a mesh structure. The first electrode layer 1 is arranged to be operated against the leakage liquid level, and the leakage liquid falling onto the first electrode layer 1 will rapidly flow to the intermediate permeation and absorption layer 2. The second electrode layer 2 arranged on the liquid leakage surface is a base electrode with respect to the first electrode layer 1 arranged on the liquid leakage surface facing the liquid leakage surface in operation.

In the embodiment of the application, if the first electrode layer 1 is too thin and is easy to break, however, if the first electrode layer 1 is too thick, when the leakage detection device needs to be bent when meeting the place with uneven installation position, the first electrode layer 1 is not easy to bend, and is not easy to use an insulating clamp or paste and fix. Preferably, the thickness d1 of the first electrode layer 1 is 0.1mm < d1 < 3mm, the mesh area s < 0.1cm ² (see FIG. 2 a). In some embodiments, the first electrode layer 1 is SUS316/316L stainless steel mesh, contains 2% -3% of molybdenum, and has the characteristics of acid resistance, alkali resistance, salt corrosion resistance, high temperature resistance and good toughness. After the leakage liquid drops to the first electrode layer 1, the leakage liquid can flow down to the imbibition layer 2 through the fine mesh structure.

In the embodiment of the application, the permeation layer 2 is made of polypropylene, and can also be made of other materials with acid and alkali resistance. In some embodiments, the permeation layer 2 can be made of polypropylene, which resists corrosion by various organic solutions such as acid, alkali, salt, etc. below 80 ℃ and the use temperature is-30 ℃ to 140 ℃. After the conductive leakage liquid contacts the first electrode layer 1, the leakage liquid can be quickly penetrated downwards, and the leakage liquid can be locked by the seepage layer 2, so that the seepage layer 2 at the leakage liquid is communicated with the first electrode layer 1 and the second electrode layer 3. Preferably, the wicking layer 2 is made using a polypropylene cotton sheet (e.g., acid absorbent cotton) (see fig. 2 b). The material of the permeation layer 2 can be selected according to the liquid to be detected, and the material meets the requirement of acid and alkali resistance. For example, if the desired detection liquid is alkaline, a material that is only alkali resistant may be selected. If the liquid to be detected is acidic, a material that is only acid resistant can be selected. In some embodiments, if the middle wicking layer 2 is too thin, it is prone to breakage, causing a false alarm, while if the wicking layer 2 is too thick, it requires much leakage to conduct up and down, thus, it is desirable that the wicking layer 2 be able to conduct both up and down with less leakage. Preferably, the thickness d2 of the wicking layer 2 is 0.2mm < d2 < 2mm. The seepage and absorption layer 2 is made of a material which is corrosion-resistant, good in water absorption and antistatic, and the seepage and absorption layer 2 is an insulator when being dried and has conductor characteristics after being soaked by conductive leakage liquid.

In the embodiment of the application, the second electrode layer 3 is made of an acid and alkali corrosion resistant metal material with a net-shaped or plate-shaped structure. In particular, as an example, the second electrode layer 3 of the mesh structure may be disposed in the nonmetallic Cheng Loupan together with the first electrode layer 1 and the imbibition layer 2, wherein the second electrode layer 3 may be directly disposed on the surface of the disk body of the nonmetallic leak-off disk. As an example, the second electrode layer 3 may be a plate-like structure. As an example, the second electrode layer 3 may be manufactured in Cheng Loupan shape, not only as a base electrode, but also to store leakage liquid when the leakage liquid amount is large, avoiding the leakage liquid flowing into other working areas.

In some embodiments, the second electrode layer 3 may be made of the same material and structure as the first electrode layer 1, so that bidirectional detection can be performed, i.e., since the first electrode layer 1 and the second electrode layer 3 are made of the same material, both sides can be used as detection surfaces, and thus leakage can be detected when any side is stained with the liquid. The leakage detection device needs to meet the requirement that the leakage T in any 1cm ² of the two detection surfaces of the first electrode layer 1 or the second electrode layer 3 is more than 0.05mL, and the first electrode layer 1 and the second electrode layer 3 can be conducted. When the middle seepage layer 2 is stained with the leaked liquid and cannot be insulated, the seepage layer 2 can be replaced when the leaked liquid detection device cannot be used continuously. For example, in the case where the first electrode layer 1, the imbibition layer 2, and the second electrode layer 3 are fixed using insulating nails, the insulating nails can be detached to perform replacement of the imbibition layer 2.

In some embodiments, the wicking layer 2 of the second leak detection device is configured to be operatively facing the leak level. The imbibition layer 2 is composed of at least two layers of propylene materials, and the first electrode layer 1 is of a net-shaped structure and can be clamped between the two layers of structures of the imbibition layer 2 so as to increase the laminating degree between the layers. For example, the first electrode layer 1 may be sandwiched between two structures of the imbibition layer 2 with a hot melt adhesive, and the structures are used to form a circuit with the base electrode configured as the liquid leakage plane. The materials and technical characteristics of the first electrode layer 1, the imbibition layer 2 and the second electrode layer 3 serving as the base electrode are the same as those of the first leakage detection device, and are not repeated here.

In some embodiments, referring to fig. 1, the liquid leakage detection device further includes an interface 4 and an electrode clip 5, and the first electrode layer 1 and the second electrode layer 3 are electrically connected to the interface 4 through the electrode clip 5, respectively. The interface 4 can enable the liquid leakage detection device to be quickly connected with other equipment, such as a tester. In particular, the electrode holder 5 has good electrical conductivity. The first electrode layer 1 and the second electrode layer 3 clamped by the electrode clamp 5 can be replaced at any time, and the replacement can be performed only by loosening the electrode clamp 5.

In some embodiments, the interface 4 of the leakage detection device is electrically connected to an alarm device (not shown) and a power source (not shown) that are connected in series, and forms an electrical signal loop with the first electrode layer 1, the imbibition layer 2 and the second electrode layer 3. When leakage liquid enters the imbibition layer 2, the first electrode layer 1 and the second electrode 3 are conducted so as to conduct the whole electric signal loop, and the alarm device works. The alarm device can generate an alarm signal based on the electric signal to alarm related staff that liquid leakage occurs. In some embodiments, the alarm device may be a signal light, a buzzer, etc., and correspondingly, the alarm signal may be a light signal, a sound signal, etc. that is perceptible to humans.

Referring to fig. 3, in some embodiments, the overall shape of the leakage detection device is wavy (see fig. 3 a) or arc-shaped (see fig. 3 b) to increase the fit with the mounting location. Because the locations where leakage is to be detected are typically locations such as pipe joints, valves, machine stations, etc. that involve hazardous chemicals, these locations may be uneven, requiring the leakage detection device to be shaped to accommodate the installation location requirements. The leakage detecting device may be provided in a plane or any other shape other than the wavy shape and the arc shape.

In some embodiments, the leakage detection device is installed above the waste channel, and after the leakage falls, most of the leakage falls below and is discharged directly to the waste channel, except for a small portion of the leakage is absorbed by the seepage layer 2.

Referring to fig. 4, in some embodiments, the second electrode layer 3 of the liquid leakage detection device is a metal plate (e.g., a stainless steel plate). When the leakage liquid drops fall on the first electrode layer 1, the leakage liquid falls to the imbibition layer 2 and further continues to fall to the metal plate, and a loop can be formed between the metal plate serving as a base electrode and the first electrode layer 1. The first electrode layer 1 is clamped with a first electrode clamp 51, the metal plate is clamped with a second electrode clamp 52, and the first electrode clamp 51 and the first electrode clamp 52 are respectively connected with other devices or instruments through a wire connection interface 4 for quick connection.

Referring to fig. 5, in some embodiments, the second electrode layer 3 of the liquid leakage detecting device may also be used as a drain pan, and as an embodiment, the second electrode layer 3 is shaped and sized to be made of conductive metal Cheng Loupan; the first electrode layer 1 and the seepage layer 2 are stacked in the leakage tray, if the first electrode layer 1 with the leakage drops on the upper layer is leaked, the first electrode layer 1 and the leakage tray are conducted, and the leakage detection device is communicated with the leakage tray to detect leakage. The leakage tray keeps the leakage liquid in the tray and does not flow to other places, so that the leakage liquid detection device forms an integrated device for detecting the leakage liquid and containing the leakage liquid. In some embodiments, the first electrode layer 1 sandwiches the third electrode clamp 53 and Cheng Loupan, respectively, via the wire connection interface 4 for quick connection to other devices or instruments.

As another embodiment, the second electrode layer 3 is disposed on the nonmetallic leak tray, a loop is formed between the second electrode layer 3 and the first electrode layer 1 when the leakage occurs, and when the leakage is more, the leakage is stored in the nonmetallic leak tray, so that the leakage detection device forms an integrated device for detecting and containing the leakage.

Referring to fig. 6, in some embodiments, the leakage detection device further comprises a fixing device 6 for fixing the stacked first electrode layer 1, the wicking layer 2, and the second electrode layer 3. The fixing means 6 comprise a first magnetic sheet 61 and a second magnetic sheet 62. The stacked first electrode layer 1, wicking layer 2, and second electrode layer 3 are sandwiched between the second magnetic sheet 62 and the first magnetic sheet 61. In some cases, the first electrode layer 1 and the second electrode layer 3 made of metal cannot be attached to the imbibition layer 2 when being directly placed due to deformation or the like, or can be fixed at a desired position to prevent the position of the leakage detection device from changing, so that the fixing device 6 is provided to clamp the first electrode layer 1, the imbibition layer 2 and the second electrode layer 3.

In some embodiments, the first surface 621 of the second magnetic sheet 62 is used to fix the first electrode layer 1 or the imbibition layer 2, the second surface 622 of the second magnetic sheet 62 is arc-shaped, and the first surface 621 and the second surface 622 are two opposite surfaces of the second magnetic sheet 62. The second surface 622 of the second magnetic sheet 62 has a thin edge and a thick middle, and is not easily broken, and can slide off the liquid without liquid accumulation. The first magnetic sheet 61 may be fixed to the drain pan or other desired location by adhesive-backed bonding, embedding, or the like. As an example, the first surface 621 of the second magnetic sheet 62 is circular, and the radius r is: the thickness d3 of the second magnetic sheet 62 is 3mm < r < 20 mm: d3 is more than 1mm and less than 5mm. The first magnetic sheet 61 is a cylinder and has the same cross-section size as the first surface 621 of the second magnetic sheet 62, and the thickness d is 0.5mm < d < 5mm.

The leakage detecting device of the present application comprises a first electrode layer 1, a wicking layer 2 and a second electrode layer 3 stacked longitudinally, and the first electrode layer 1, the wicking layer 2 and the second electrode layer 3 are fixed by a fixing device comprising a first magnetic sheet 61 and a second magnetic sheet 62. When the leakage falls, the conduction/insulation of the seepage layer 2 is controlled by the liquid suction/desorption of the seepage layer 2 in the middle, so that the first electrode layer 1 and the second electrode layer 3 can be conducted when the leakage exceeds 5 drops (about 0.3 mL) at any point on the detection surface.

The possible beneficial effects of the embodiment of the application include but are not limited to: the leakage detection device can be quickly adapted to different detection environments by replacing the electrode layer serving as the base electrode. Compared with a transverse structure, the longitudinal stacking structure saves time for the leakage liquid to flow through the electrode, and the leakage liquid can be detected instantaneously when falling on the leakage liquid detection device. The detection area is covered on the whole surface, has no dead angle, and does not need to arrange probes and cables. The shape of the liquid leakage detection device is easy to change, and the liquid leakage detection device is suitable for all space structures. The dropped liquid leakage can be quickly absorbed by the seepage layer, so that the liquid leakage is effectively prevented from splashing.

It should be noted that, the advantages that may be generated by different embodiments may be different, and in different embodiments, the advantages that may be generated may be any one or a combination of several of the above, or any other possible advantages that may be obtained.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements and adaptations of the application may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this specification, and are therefore within the spirit and scope of the exemplary embodiments of this application.

It should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the device can be rotationally connected or slidingly connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art in combination with specific cases.

In addition, when terms such as "first", "second", "third", etc. are used in the present specification to describe various features, these terms are only used to distinguish between the features, and are not to be construed as indicating or implying any association, relative importance, or implicitly indicating the number of features indicated.

In addition, the present description describes example embodiments with reference to idealized example cross-sectional and/or plan and/or perspective views. Thus, differences from the illustrated shapes, due to, for example, manufacturing techniques and/or tolerances, are to be expected. Thus, the exemplary embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of the exemplary embodiments.

Meanwhile, the present application uses specific words to describe the embodiments of the present specification. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the application. Thus, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the application may be combined as suitable.

Similarly, it should be noted that in order to simplify the description of the present disclosure and thereby aid in understanding one or more inventive embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof. This method of disclosure does not imply that the subject application requires more features than are set forth in the claims. Indeed, less than all of the features of a single embodiment disclosed above.

Finally, it should be understood that the embodiments described herein are merely illustrative of the principles of the embodiments of the present application. Other variations are also possible within the scope of the application. Thus, by way of example, and not limitation, alternative configurations of embodiments of the application may be considered in keeping with the teachings of the application. Accordingly, the embodiments of the present application are not limited to the embodiments explicitly described and depicted herein.

Claims (10)

1. The leakage detection device is characterized by comprising a first electrode layer, a seepage layer and a second electrode layer;

The first electrode layer, the seepage layer and the second electrode layer are sequentially stacked, and the first electrode layer is configured to be opposite to the liquid leakage surface when working; or alternatively

The imbibition layer and the second electrode layer are stacked, the first electrode layer is arranged in the imbibition layer, and the imbibition layer is configured to be opposite to the liquid leakage surface when working;

The seepage layer is used for absorbing leakage liquid, and the first electrode layer and the second electrode layer are conducted when the quantity of the absorbed leakage liquid is larger than a conduction threshold value.

2. The leakage detection device according to claim 1, wherein the turn-on threshold is a minimum leakage amount absorbed per square centimeter for achieving turn-on of the first electrode and the second electrode, and the value is 0.05 ml/square centimeter.

3. The liquid leakage detecting device according to claim 1, wherein,

The first electrode layer is made of a metal material with a net structure and acid and alkali corrosion resistance;

The second electrode layer is made of an acid and alkali corrosion resistant metal material with a net-shaped or plate-shaped structure.

4. The liquid leakage detection apparatus according to claim 1 or 3, further comprising a non-metallic drain pan, wherein the second electrode layer is disposed within the non-metallic drain pan.

5. The leakage detection device according to claim 1, wherein the imbibition layer is made of polypropylene.

6. The liquid leakage detection device according to claim 1, wherein the liquid leakage detection device has an overall shape of a plane, a wave, or an arc.

7. The leakage detection device according to claim 1, further comprising a fixing device for fixing the stacked first electrode layer, the permeation layer, and the second electrode layer, the fixing device including a first magnetic sheet and a second magnetic sheet, the stacked first electrode layer, permeation layer, and second electrode layer being sandwiched between the first magnetic sheet and the second magnetic sheet.

8. The leakage detection device according to claim 7, wherein a first surface of the second magnetic sheet is used for fixing the first electrode layer or the imbibition layer, a second surface of the second magnetic sheet is an arc surface, and the first surface and the second surface are two opposite surfaces of the second magnetic sheet.

9. The leakage detection device of claim 1, further comprising an interface and an electrode clip, wherein the first electrode layer and the second electrode layer are electrically connected to the interface through the electrode clip, respectively.

10. The leakage detection device according to claim 9, wherein the interface is electrically connected to an alarm device and a power supply connected in series, and forms an electrical signal loop with the first electrode layer, the wicking layer, and the second electrode layer.